Slag vertical mill feed means to improve the operation rate of transformation

Slag powder is a superior performance of concrete admixtures, more and more applications to the building materials industry, CHAENG slag vertical mill with advanced technology, excellent quality, perfect service system, more value-added services by many building materials production on the favor,Currently, many of the world-renowned enterprises have introduced CHAENG slag vertical mill to produce slag powder production line.

Today, CHAENG for everyone to share technical innovation of large slag vertical mill.
With respect to the ball mill, the vertical mill can better adapt to the high moisture material slag grinding requirements, however, some companies are using is to remove from the pool of slag as a raw material, the moisture content is too high slag vertical mill will not meet, which appears frequently blocking material into the mill downpipe, material bed forming bad problem. If not improve, it will lead slag vertical mill capacity to reduce energy consumption increases, or even damage to the device.
So, how to transform it?
Solution: The original band inclination, directly into the mill feed downpipe to a vertical downpipe, downpipe outlet will move outside the vertical mill, in the discharge port valve is installed in a horizontal screw conveyor. Downpipe into the material through the screw conveyor inlet under the action of the screw conveyor to force the material to the vertical mill, feed downpipe to avoid direct contact with high-temperature gas into the mill and the mill. Although the mill screw conveyor outlet and the high temperature zone of convergence, but the screw conveyor is a continuous conveying machinery, the use of rotary screw of the screw shaft such that raw materials and the relative motion to achieve the purpose of transportation, and can demand, during transportation the complete mixing, kneading to achieve the delivery of materials to eliminate the high moisture material feed valve is clogged compaction problem in the next. Simultaneously canceled downpipe lock valve, self-locking screw conveyor through wind, reducing the amount of air leakage in the mill.
What specific measures is it?
On the side of slag vertical mill housing erection platform directly into the vertical mill of the original valve is removed, the installation of a screw conveyor, the valve is angled to the vertical downpipe, slag after feeding belt conveyor into the vertical down feed downpipe, and through the new installation of screw conveyor into the vertical mill.
With this transformation, slag vertical mill can easily solve the problem of downtime caused by blockage downpipe, can effectively improve the slag vertical mill operating rates, reduce labor intensity of workers' jobs and improve the vertical mill output and lower power consumption.
CHAENG is a large comprehensive service provider mill kiln equipment in China, the introduction of slag vertical mill products using new efficient cage rotor separator to ensure that the finished product than the surface area can be flexibly adjusted in 4000 to 5500c㎡ / g, a single electrical energy consumption does not exceed 30Kwh can achieve intelligent control.

CHAENG Engineering teams according to the specific mining conditions, material characteristics, targeted reasonable, improved technology solutions to help customers solve various technical problems. If the quotes and other technical questions, please consult online or send us an email

GRMS Nickel slag vertical mill grinding process technology and principles

Nickel slag, Blast furnace slag, steel slag grinding process technology, mainly combined ball mill + roller press, pre-grinding roller mill + ball mill grinding, vertical mill grinding. Wherein, GRMS Nickel slag vertical mill grinding process is simple, small footprint, low construction costs, high grinding efficiency,low energy consumption, is the ideal nickel slag, slag, steel slag treatment process.

Slag, steel slag, nickel slag vertical mill works principle as follows: Nickel slag vertical mill uses two forms of feeding and side feeding centers, vertical mill material from falling into the upper lock valve, slide along the feeding tube straight into the disc on, with the rotation of the disc outward throw, again cutting the vertical scraper means Chute welding scraping, he was thrown into the grinding zone lining on the disc, abrasive surface grinding roll grinding in this region Directly above.
On the disc are roller grinding material, by a small portion of the new material with high moisture and most over-the-mill finished with lower water composition. This is because a large part of the unfinished coarse material separated by the separator is returned, which is the recycle material. The slag discharge auxiliary roller compaction. Main roller rocker arm fixed to the main, a good material layer is configured by pressure grinding. Force by the roller itself weight and hydraulic system pressure generated by the roller and the grind bed friction rotation.
Sensors and buffers for the rocker arm roller installed to prevent direct metallic contact with the disc. Was milled slag particles under the effect of centrifugal force is thrown out and through the ring gauge, where it is the collector loop through the wind increased airflow. Dust and gas mixture flows through the grinding chamber, which was equipped with a vertical mill liner wear of the cylinder surrounded enter welded to the vertical mill separator barrel on the finished separator will be elected.
Through the annular air ring by a vertical mill discharge foreign matters, as well as in case of motility disorders, falls through the annular air ring roller mill cone slag grinding, by installing the disc following board scraper, scrape drain mouth after both the nickel slag discharged from here through the air box into the recycle feed tube slide, grinding again, separator, until a qualified products.

CHAENG(Great Wall Machinery) Nickel slag production line project has been officially launched, can be designed to provide customers with an annual output of 30,0000 to 100,0000 t of nickel slag vertical mill production line.

30t/h coal vertical mill equipment price

Chaeng(Great Wall Machinery) pulverized coal grinding system specifications can be divided into: GRMC17.21 coal vertical mill, GRMC19.21 coal vertical mill, GRMC24.31 coal vertical mill, its production capacity is designed to be divided into: 20t / h, 25t / h, 40t / h to meet a variety of applications on the market in the field of coal-fired boilers, and the pulverized vertical coal mill is the world's leading coal preparation facilities have been highly rated domestic and foreign customers.
First, what is coal vertical mill production process is the full set of equipment?

Figure: coal vertical mill process flow
Second, what's working principle of coal vertical mill ?
coal feed the vertical mill After Rotary feeder , with the rotation of the disc from the center to the edge of the movement, at the same time by the coal vertical grinding mill roll extrusion and grinding. After grinding disc at the edge of the pulverized coal to be brought up from the hot gases into the air ring, the meal back to the disc and then grinding, qualified powder into the hot air from the bag filter after collecting chute transported by air to the library side of the elevator into the finished products. Drying heat generated from the combustion hot stove in the scene. Hot air through a pipe into the mill, the mill after the gas cleaning system by the fan into the chimney, where a portion of the cycle again into the mill through the circulation duct.
Third, What's the technology advantages of coal vertical mill?
1, set the grinding, drying, separator, delivery in one energy efficient.
2, disc shape is conducive to the material after grinding the edge of the disc was promptly thrown into the isolated, reducing over-grinding. High efficiency, low power consumption.
3, coal vertical mill roll grinding machine pulls out, the repair and replacement of wearing parts is very convenient.
4, the roller sleeve symmetrical shape of the tire structure, can be used upside down, long life, low operating costs.
5, the separator for the efficient dynamic - static separator, high efficiency, small resistance.

6, with a limit device can be prevented when no material on the disc and roller disc in direct contact, wear and avoid severe vibration.

Chaeng upgraded version of lime rotary kiln for customers favored

Recently, Chaeng(Great Wall Machinery Co., Ltd.) and Guangxi Hua Yan ore source Ltd. signed a purchase contract φ4.0 × 60m rotary kiln, the device is mainly used in the nano calcium carbonate production line, production line supporting the coal mill bag filter and also by Chaeng supply. National Day is approaching, Chaeng has signed a large single machine, which makes the Great Wall machinery National icing on the cake.
Chaeng lime kiln is another masterpiece, an upgraded version of lime more customers favor. Lime kiln lime kiln referred to, also known as active lime kiln, widely used in cement, chemicals, non-ferrous metallurgy, ferrous metallurgy, refractory materials, ceramics and paper, and other fields. As a professional manufacturer of lime, the Chaeng currently available for the production of Nissan 1200 tons or less lime kiln equipment, and from the design, manufacture, installation, commissioning one-stop "turnkey" service, ensure that customers can in a very short achieve production within a period of time.

As the leading manufacturer of lime, Chaeng in constant development, using the latest technology to create cost-effective kiln equipment, to achieve a win-win with customers. Chaeng upgraded kiln advanced production technology, production.

Its main advantages:
A higher: because the material in the kiln even rolling forward, heat evenly, stable product quality, raw, burnt a lower rate can be calcined lime with high activity, the activity of lime under the same conditions, lime production shaft kiln higher than the average high 30ml, activity of up to 400ml, or even higher.
Second, the greater: High yield lime, Chaeng has built many Nissan 150 tons -1200 tons of active lime kiln production lines, running in good condition, suitable for medium and small enterprises to use lime.

Third, more environmentally friendly: Chaeng calcining kiln belonging to the open, high-tech production process, kiln structure is simple, airflow, the gas can be discharged in the sulfur smoke, fuel sulfur easy attachment, and thus lower product sulfur content desulfurization efficiency up to 85%.

Vertical roller mill technology

Clearly It's crucial role to know the role of product components. It's better for us to pick the desired product, understand the advantages of vertical mill technology easy to play its role in the using. So, what's the advantage? Let Chaeng(Great Wall machinery) tell you.

1. reducing production investment costs significantly
Vertical mill system process is simple, compact layout, small floor area, covering about 70% of ball mill system, building space of about 60% milling system and may open layout, directly reduce investment costs. And vertical mill separator itself, does not require additional separator and lifting equipment. The grinding dust and gas can be directly collected by the bag filter or electrostatic precipitator.
2. High production efficiency, energy saving and environmental protection
Vertical grinding mill uses the principle of grinding material layer material, low energy consumption, grinding system power consumption by 20% to 30% over the ball, and with the increase of raw water, energy-saving effect is more obvious. Vertical mill and milling system energy systems compared to savings of 30% to 40%. Stand mill did not work in a ball mill balls collide, the impact liner metal crash, so the noise is small, less than the ball 20 ~ 25dB. In addition, vertical mill fully enclosed system, the system working under negative pressure, no dust, clean environment.
3. Strong material drying capacity
vertical mill adapt the hot air transportation of materials, when grinding materials with large water inlet temperature can be controlled, so that products meet the required final moisture. In the vertical mill, can dry - grinding into the grinding material moisture up to 15% to 20%.
4. Simple operation, easy maintenance
Equipped with automatic control system, which enables remote control, easy to operate; through the maintenance tank, turn rotating arm can be quick and easy to replace the roller sleeve, liner, reduce business downtime.
5. Product quality is stable and easy to detect
Chemical composition and stability of the product, particle size distribution are homogeneous, it is conducive to firing. The material in the vertical mill residence time of only 2 ~ 3min, but in a ball mill will have 15 ~ 20min. Therefore, the chemical composition and fineness stand mill products can be quickly measured and corrected.
6. wear small, high utilization
Since the operation of the mill stand and roller disc is no direct contact between the metal wear, metal consumption per unit of product is generally 5 ~ 10g / t.

It is because of the many advantages of vertical mill, vertical mill occupies an unshakable position in the grinding industry.

Supplier of steel slag processing equipment

Slag is suit for high-performance cement and concrete admixtures to improve the performance of concrete. Concrete mixed with steel slag powder having a low heat of hydration, corrosion resistance, and reinforced strong bond, post-high strength, anti-miniature and other characteristics, can be widely used in dam engineering, underwater engineering, road works, anticorrosion, large-scale construction projects, more and more by the construction industry, the transportation industry's favor. Therefore, there is market demand for domestic products of the project a lot of room, great market potential, feasibility strong, broad development prospects.
steel slag powder is used in cement production, can play a superior performance in many aspects:
1, steel slag powder is a superior performance of concrete admixtures, adding 10 to 35 percent of the powdered slag in the concrete, while the incorporation of 0-20% finely ground steel slag and from 0 to 9% silica fume, substituted 10 to 50% of cement and cementitious materials in a total amount of 380 ~ 550 kg / m3, you can configure the C20 ~ C60 concrete.
2, steel slag can be incorporated into a single concrete, but also with slag powder, fly ash, silica fume concrete composite incorporated. When incorporated into the slag alone to about 25% of steel slag powder instead of highest intensity when the cement concrete. For late strength of concrete steel slag growth more favorable.
3, Shougang mixed finely ground steel slag concrete mixed with a higher strength than the fly ash concrete; with the powder slag concrete considerably.
4, adding Shougang powdered slag concrete strength concrete strength in line with the general rule, therefore, mixed with finely ground steel slag concrete mix design fully in accordance with usual methods and specifications to carry out.
5, mixed steel slag concrete slump minor damage, but also with admixtures related.
6, Shougang incorporated finely ground steel slag can greatly reduce the heat of hydration of cementitious materials, which reduces the heat of hydration and effect quite alone with fly ash, slag powder is superior.
which Slag processing equipments is best? What about the production process?

It is understood that, due to the high energy consumption of traditional slag ball mill , do not meet environmental protection requirements of today's social development and will be phased out, the new environmentally friendly slag vertical mill has become widely accepted slag processing equipment, which is provided by hot air drying stove. Its production process is:

First, impurities, chunks separated, and in addition to iron, by the vertical roller mill grinding using vertical mill hot stove provided, drying and grinding process to achieve, qualified powder into the flour library is finished.
Secondly, the space under the belt material to climb transit hug, hug with a shaker transit impurities and mass separation. After preliminary intermediate magnetic separator iron. In transit hug belt conveyor disposed under the screen in addition to the ingredients delivered to the warehouse after impurities and chunks. To prevent non-magnetic metal block into the mill, belt conveyor provided with metal detectors. Ingredients warehouse at the end with a flat belt scale. To prevent the blocking positions, set two vibrator warehouse wall to prevent clogging.
Again, after dosing scales, by the belt conveyor (electromagnetic separator is provided on the belt conveyor) into the grinding plant. Material from the warehouse to the gate via the hydraulic lock three vertical wind mill feed drying, grinding and separator, hot air drying is supplied by the stove. Workshop for the vertical mill grinding system of roller mill, feed mill is grinding rolls stand on a rotating disc to be crushed, be crushed under a certain load, the hot air after grinding, that rise into the air carrier efficient vertical mill is located on the top of the separator, sorted coarse and fine. Fines (ie refined) from the air into the bag filter to collect, transport equipment to a flour store via chutes, hoists and the like. On the mill separator disc falls again elected meal grinding in order to save energy and iron, part of the meal is discharged from the disc perimeter overflow device via recycled materials vertical mill bucket elevator, pneumatic two-way valve, dry powder Permanent magnetic drum separator, etc. In addition to iron again returned to the mill grinding cycle stand. After collecting the exhaust gas after the exhaust fan into the chimney, as part of the larger hot air and circulating air stove produced mixed into the vertical mill drying, and the rest into the atmosphere.

Finally, the powder from the grinding plant by bucket elevator, library top chute into the powder stored in the library. Library with pink inflatable cone decompression library, will ensure smooth cutting and a certain homogenizing effect. Powder storage using 4-Φ15 × 35m of reinforced concrete silos, reserves of about 4250 tons / month. Bulk powder reservoir bottom fitted with equipment for cars exported in bulk powder.

Nickel slag recycling grinding equipment

Nickel slag recycling is currently another emerging industry slag after steel slag ,water slag and other industrial waste recycling, Chaeng(Xinxiang Great Wall Machinery) Production GRMS series vertical slag mill plays a huge role in the recovery of nickel slag grinding process, the current Chaeng can to complete the 300,000 tons --100 tons of nickel slag production line matching, production efficiency is gratifying. Today, the Chaeng explain for customer how the nickel slag recycling on comprehensive

1. nickel slag presentation
nickel Slag is one kind of high-nickel stainless steel slag, because of its low permeability, high intensity magnetic separation using the traditional method of recovery is low, so Chaeng design a re-election high nickel slag Recovery Process Process. Gravity separation method is sorted according to the proportion of the difference between the nickel and iron particles of solid waste, which is mainly used in sorting equipment jig is sometimes used in a shaker.
There are more solid waste can not directly block jig, and therefore need to be large pieces of waste crushed to pieces, and then into the rod mill coarse grinding, grinding to a solid waste separation and basic nickel-iron alloy monomer state, and then enter the jigger gravity separation to obtain pure nickel-iron alloy and solid waste.
2. the nickel slag grinding
vertical roller mill grinding technology for nickel slag grinding is relatively mature, and Chaeng is one of the mechanical engineering cases and more complete device models nickel slag vertical mill manufacturers,Let Chaeng introduction of nickel slag vertical mill grinding process in a few steps of it.
In 2010, the Chaeng first to see the slag |steel slag | Nickel slag recycling market value and prospects, so the use of slag production of nickel slag vertical mill as the main system, the construction of the domestic top-ranking Article 600,000 tons of slag powder | Nickel slag production lines, strong production capacity and marketing, in less than three years, the Chaeng recover the investment costs, net income in the current state.
The state has repeatedly stressed that environmental protection, low-cost production regulations for industrial enterprises has brought great pressure, but in this case, the common material after slag vertical mill grinding process can be applied to the development cycle of the admixture of cement let them see a bright future, so many steel mills, coal plant customers have to visit the Chaeng section of nickel ore slag production line, its recognition and satisfaction greatly increased, so in 2013, the annual output of 30,0000 , 60,0000, 90,0000 tons of nickel ore slag turnkey project contract is signed smoothly, this result marks the Chaeng been strong among the well-known "grinding system integration providers," the ranks, from manufacturing to achieve a transition service upgrades, with vertical mill turn overtaking goal has been realized.
An annual output of 30,0000 ~100,0000 tons of nickel slag Production Line

Chaeng is a professional manufacturer of grinding equipment, the company has a unique profile and practical experience of high nickel slag recycling, low nickel slag, stainless steel slag, chromium slag, slag and other solid silicomanganese smelting waste, free of charge customer design and carry out a pilot recycling process and device configuration, customers are welcome to visit our factory, and seek common development, we will heartedly at your service!

How much money to invest 300,000 t/a active lime kiln production line ?

As steel, calcium carbide and other industries demand a 20% increase in profit incentives lime, lime kiln launched a large number of soil on the market. But the old type production processes and product quality can not meet the needs of modern kiln production, low activity of the product, raw burning, burnt can not be controlled, fuel wastage and serious environmental pollution. Thus, the new environmentally friendly active lime kiln production line will replace the original lime kiln!
Chaeng based on years of mechanical manufacturing experience, successfully developed a new environmental protection lime kiln, has an absolute advantage in terms of production, coal consumption, lime activity, burning loss rate, to customers of all ages.

Host calcination process: lime rotary kiln

Figure: active lime kiln production line process
Qualified limestone (20-50mm) by Lifting and carried into the preheater at the top of the silo.
Preheater top two upper and lower hopper level meter to control the feed amount, and then blanking tube limestone evenly distributed to each of the preheater chamber.
Limestone in preheater kiln flue gas is heated to about 1150 ℃ 900 ℃, about 30% decomposition. By hydraulic push rod pushed into the rotary kiln, the limestone calcined in a rotary kiln decomposition of CaO and carbon dioxide.
After the decomposition of limestone into the cooler in the cooler was bubbled into the cold air cooled to below 100 ℃ discharged. By heat exchange 600 ℃ hot air into the kiln and gas co-firing.
The exhaust manifold through the cooler into the bag filter through the induced draft fan, and then the exhaust fan into the chimney.
A lime cooler by vibrating feeder, bucket chain conveyor, bucket elevator, belt conveyor into the lime finished products.
Production line advantages of high efficiency, environmental protection
1. The higher activity than traditional shaft kiln 30ml
Because the material in the kiln even rolling forward, uniform heating, raw, burnt a lower rate for calcined lime with high activity, under the same conditions, the activity of lime shaft kiln lime production is higher than the average high 30ml, activity of up to 400ml, or even higher.
2. The capacity of up to 1500t / d
Chaeng active lime kiln large-scale production, one active lime production line capacity up to 1500t / d, running in good condition, to provide protection for the steel plant and other enterprises to expand the scale and lower production costs.
3. Automated control reduce labor costs
High degree of automation, using DCS remote control system, the entire line of 2-3 people to operate.
4. good product quality, low birth burn
Uniform product quality, raw burnt burn rate <8%.
5. gaseous fuel, energy saving

Chaeng lime kiln belonging to open firing, high-tech production process, relatively low energy consumption than the old lime kiln, and the use of blast furnace gas and other waste as a fuel more environmentally friendly.

Chaeng dedicated vertical mill slag production line

As a major mining equipment manufacturer,Chaengs' grinding equipment experienced half a century of development, independent innovation in the introduction of foreign advanced technology, based on, and promote the further development of ultra-fine powder technology.
Chaeng In response to the State efficient, environmentally friendly energy policy appeal, which started towards the intelligent milling equipment, energy saving direction, GRM series vertical mill slag production line is introduced into the developing efficient and environmentally friendly equipment start.

Chaeng slag vertical mill production line Why can emerge in the field of environmental protection and efficient equipment?
First, the Chaeng vertical mill slag processing simple:
Chaeng vertical mill machine Applications mainly concentrated in the construction industry, slag vertical mill performance benefits of a stand-alone operation is particularly evident, a vertical mill machine can play crushing, grinding, classification and other functions. Thus, the Chaeng slag vertical mill production process layout is very simple, completely replaced the old production line in various combinations of equipment, simplifies the production process of the material.
Second, vertical mill high production efficiency:
Chaeng Vertical Mill grinding principle is to direct rolling material crushing, ball mill higher productivity than about 50%, to improve the economic efficiency of enterprises, in the shortest time cost recovery has an important significance.
Mentioned slag production line of high efficiency, quick recovery of costs, had to talk about Xinxiang City Star cement plant, the cement plant in 2011 and a one-time signed a 600,000 tons a host device GRMS46.41 slag vertical mill and 300,000 t/a of slag production line two construction contracts with Chaeng. And officially put into operation in 2012, put into operation two years ore sales are very popular products in short supply! Soon recover the cost, and then in 2013 with the construction of Chaeng a production line of 600,000 t/a slag grinding line, which production line in early April this year, production equipment running smoothly considerable economic benefit.
Third, the vertical mill produce high intelligence:
Chaeng GRM series vertical mill slag production line design principles are very intelligent. Well-known mill main wearing parts are grinding roller and liner, the wear of these parts in contact with the material directly subject to relatively high. In order to reduce equipment wear and reduce post-maintenance costs, Chaeng vertical roller mill liner sleeve and no direct contact. Millstone intermediate roller sleeve and leave some space to prevent equipment wear and vibration material crushing process of causing.
Fourth, the production of environmentally friendly high-performance roller mill:
Vertical mill slag processing equipment prices 30% lower than the cost of an ordinary slag production line, but they can achieve higher material production capacity. As raw material mill device of choice, the use of closed vertical mill grinding system for production, will not leak dust, will not pollute the environment.
Fifth, customers across the country:
Chaeng Through years of efforts to develop a series of GRMS slag vertical mill, vertical roller mill slag, GRMK series cement vertical mill is fully equipped with an annual output of 20-100 ten thousand tons vertical mill slag production line capacity, and its products sold to various provinces in the country, such as: Shanghai Baosteel and Chaeng signed an annual 1.5 million tons (2 × 60 tons of slag, steel slag 300,000 tons) of composite powder production line turnkey contract, Hebei Xinji Aosen steel plant 600,000 tons of raw ore total package, Hejin City, the Galaxy cement plant annual output of 300,000 tons of slag powder production line construction. Chaeng future vertical mill slag produced high economic and social benefits earned high market visibility and reputation.

Chaeng since its inception, has always been implementing the "people-oriented, integrity management" business philosophy has always adhere to the "Where to sell products, and services to go" service. Jiexin provide consumers with quality products and efficient service, and improve industry standards and make unremitting efforts.

CHAENG energy-efficient ball mill equipment

Application : Cement Plant, Clinker Grinding Unit, Steel Mill, Quicklime Plant
Capacity : 21-155 t/h
Motor Power : 800-3550 kw
Cylinder length : 3000~6000 mm

CHAENG energy-efficient ball mill equipment is new equipment to transform the basis of the traditional ball mill after, It changed the original mill structure, it is possible to reduce energy consumption by 30%, capacity increased by 15-20%, it is widely used in cement silicate products, new building materials, refractory materials, fertilizer, metal ore and glass ceramics etc. production industry.

The energy saving ball mill is a horizontal cylindrical rotating device, which has two cabins.
Ball mill is energy saving grate ball mill and the outside runs along the gear. The materials enter the first cabin of the mill spirally and evenly through the feeding apparatus and hollow shaft. In the first cabin, there is stepped liner or corrugated liner, and steel balls with different specifications. The centrifugal force generating from the rotation of the cylinder brings steel balls to a certain height, and then the balls fall, thumping and grinding the materials.

After coarse grinding in the first cabin, the materials enter the second cabin by single-wall partition. There is flat liner and steel balls in the second cabin, where the materials are grinded further. Finally, the powder is discharged through discharge grate and the grinding operation is finished.

How to improve the slag vertical mill feed means

Slag powder is a superior performance of concrete admixtures, more and more applications to the building materials industry, CHAENG slag vertical mill with advanced technology, excellent quality, perfect service system, more value-added services by many building materials production on the favor,Currently, many of the world-renowned enterprises have introduced CHAENG slag vertical mill to produce slag powder production line.

Today, CHAENG for everyone to share technical innovation of large slag vertical mill.

With respect to the ball mill, the vertical mill can better adapt to the high moisture material slag grinding requirements, however, some companies are using is to remove from the pool of slag as a raw material, the moisture content is too high slag vertical mill will not meet, which appears frequently blocking material into the mill downpipe, material bed forming bad problem. If not improve, it will lead slag vertical mill capacity to reduce energy consumption increases, or even damage to the device.

So, how to transform it?

Solution: The original band inclination, directly into the mill feed downpipe to a vertical downpipe, downpipe outlet will move outside the vertical mill, in the discharge port valve is installed in a horizontal screw conveyor. Downpipe into the material through the screw conveyor inlet under the action of the screw conveyor to force the material to the vertical mill, feed downpipe to avoid direct contact with high-temperature gas into the mill and the mill. Although the mill screw conveyor outlet and the high temperature zone of convergence, but the screw conveyor is a continuous conveying machinery, the use of rotary screw of the screw shaft such that raw materials and the relative motion to achieve the purpose of transportation, and can demand, during transportation the complete mixing, kneading to achieve the delivery of materials to eliminate the high moisture material feed valve is clogged compaction problem in the next. Simultaneously canceled downpipe lock valve, self-locking screw conveyor through wind, reducing the amount of air leakage in the mill.

What specific measures is it?

On the side of slag vertical mill housing erection platform directly into the vertical mill of the original valve is removed, the installation of a screw conveyor, the valve is angled to the vertical downpipe, slag after feeding belt conveyor into the vertical down feed downpipe, and through the new installation of screw conveyor into the vertical mill.

With this transformation, slag vertical mill can easily solve the problem of downtime caused by blockage downpipe, can effectively improve the slag vertical mill operating rates, reduce labor intensity of workers' jobs and improve the vertical mill output and lower power consumption.

CHAENG is a large comprehensive service provider mill kiln equipment in China, the introduction of slag vertical mill products using new efficient cage rotor separator to ensure that the finished product than the surface area can be flexibly adjusted in 4000 to 5500c㎡ / g, a single electrical energy consumption does not exceed 30Kwh can achieve intelligent control.

CHAENG Engineering teams according to the specific mining conditions, material characteristics, targeted reasonable, improved technology solutions to help customers solve various technical problems. If the quotes and other technical questions, please consult online or send us an email

How to operate active lime kiln to enables optimized production?

Active lime rotary kiln is the main building material equipment for lime production , which in the lime kiln production line technology to function, the device firing process maturity, large carrying capacity, strong processing capability per unit time, is conducive to efficient arrangement kiln equipment maximize productivity, and the ability for users to bring greater economic benefits. So how to aperat active lime kiln technology enables to maximize production?

There are two common active lime production layout, new technology and traditional layout, the presence of difference between the two different production layout, lime production line of safety equipment, energy production will affect stability.

1. The new technology hierarchical layout

First thing to understand is, active lime kiln is mainly through the different particle sorting limestone burning, do so in a rotary kiln fabric role in environmental protection is a very important step, use cloth enables fuel in the rotary kiln within a reasonable fully combustion, reducing waste emissions. The role of layered cloth is limestone and fuel are mixed and reach the uniform heating, the advantages of this kind of technology is to make limestone are able to get burning, prevent the remaining issues. However, also has its drawbacks, layered fabrics and mixed fabrics in comparison, they would find easy layered cloth to remove heat from the flue gases in large part, on the use of this energy saving is very negative, but also affect energy recycling.

2. The traditional layout

The role of traditional active lime rotary kiln fabric is mainly decomposed by block size Powder cloth, this can be done in the distribution of limestone, more rational use of heat, reduce heat waste.

Nickel-iron slag vertical mill grinding equipment prices

 1. Produce nickel-iron slag

Nickel-iron laterite nickel ore slag is generated in the smelting of nickel-iron or nickel refining process industrial waste. In recent years, with the rapid development of China's stainless steel and special steel industry, smelting nickel-iron gradually expand the scale, emissions of nickel-iron residue is also increasing year by year. According to statistics, in 2015 the whole year nickel-iron slag has more than one hundred million tons.

2. Nickel-iron slag treatment

At present, China nickel-iron slag comprehensive utilization rate is low, its approach is more open stockpiles or landfill, this is not only a waste of resources, take up a lot of land, and destroy the surrounding environment, seriously restricting the sustainable development of nickel-iron industry . Realized nickel-iron slag in the field of building materials large-scale resource utilization is an effective means to improve the utilization of nickel-iron slag. With the resources and energy have been put forward as well as the growing shortage of relevant national policies, comprehensive utilization of nickel-iron slag increasing attention has been paid.

3. The nickel-iron slag as a cement admixture to be an effective way to use

Nickel-iron slag cement admixture application has been made more valuable research results. Studies have shown that nickel-iron slag with ash activity, nickel-iron slag slag finely ground to powder, can be added to the cement clinker in cement admixture. The use of nickel-iron slag cement admixture preparation, the addition of up to 30%. Industry experts made many research experiments, the results show that the nickel-iron slag and steel slag, slag and other industrial waste, as can the production of cement clinker, and the nickel slag has a very good activity, slightly better than the steel slag.

4. The use of nickel-iron slag grinding faces the greatest challenges

nickel-iron slag grindability difference is the main reason leading to low utilization. nickel-iron slag containing silicates, aluminosilicate minerals such as it has the potential cementitious activity, but because of the nickel-iron slag compact structure, high crystallinity and containing certain minerals iron minerals, making it relatively easy to grind poor, seriously restricting the utilization of nickel-iron slag. Nickel iron slag grinding process optimization through innovative technology and equipment to improve the activity of nickel-iron slag, nickel-iron slag important way to promote the field of building materials widely used.

5. Nickel-iron slag grinding process Introduction

For nickel-iron slag grindability problem of poor, CHAENG launched a national patent legislation GRMS Nickel slag mill, the nickel slag vertical mill not only adapt to the high hardness materials, and greatly improve grinding efficiency and reduce power consumption grinding, grinding noise and investment in civil engineering, production of nickel slag specific surface area of 450㎡ / kg or more, and 28 days to reach maximum activity of play, can be completely suitable as a cement admixture, concrete.

6. Nickel-iron slag vertical grinding mill equipment to invest much money

Detailed pricing, please click on customer service, online consultation

7. Iron slag grinding Projects

Indonesia 300,00 t Nickel slag Model Production Line Go into operation

The festures of cement vertical roller mill

Cement vertical roller mill operation reliable:

Vertical mill is a grinding roller mill device, you can configure a number of varying roller according to demand. Vertical mill machine main bracket fixed to the rocker arm, the hydraulic system of the power unit composed of the whole crushing process. Such designed power unit or a component is an integral component in the roller around the cloth into a corresponding number of components. Vertical mill machine having such a structure, the formation of an efficient crushing production line, so that the whole machine has a special feature, which is also reflected in the advantages of vertical mill.

Vertical mill advantage is reflected:

1, can effectively reduce the noise reduction apparatus mill production process the amount of noise, more environmentally friendly, in line with the call of national policy, the corresponding environmental theme of environmental protection.

2, significantly reduced energy consumption,while the central disc material by means of a shock fall by gravity and air flow under the action of the hydraulic system, the pressure and friction materials for grinding action, the use of physical techniques to reduce the production process energy consumption, energy saving.

3, crushed vibration generated by small, start - stop one complete the whole process basically felt free to improve the stability of the equipment.

4, vertical roller mill very adaptable, can be applied to different types of materials for a variety of materials have demonstrated excellent crushing capacity, proven vertical grinding mill equipment is the application materials more grinding equipment.

5, vertical mill smaller, less area, to the production site brings certain advantages, but also to production has brought great convenience.

6, vertical mill operation simple, just a little understanding of the main components of the vertical mill, will be able to skillfully safe operation. maintenance is also more convenient for most of the mill maintenance methods.

7, using dry processing grinding technology will exhibit more excellent characteristics, vertical mill is sensitive to the material humidity, water content has a greater impact on the vertical mill,dry gridning is the favorite production way for vertical mill .

Vertical mill is widely used, but also different from raymond ultra-fine grinding mill equipment, it mutually grinding disc and grinding roller grinding classic way, good product fineness, high efficiency, low energy consumption, but also a kinds of energy saving grinding equipment, these features and advantages became an important reason to support it more and more sought after by the market .

Cement vertical mill and roll press Comparative Analysis

At this year's International Cement Summit, industry experts whether or exhibition business, have called the second generation of new cement grinding equipment reform, therefore, the reporter visited to participate in the China International Cement Technology and Equipment Exhibition some companies found , cement vertical mill applications and markets have been excavated.

cement vertical mill also known as cement clinker vertical mill, by virtue of its simple operation, easy maintenance, energy-saving effect obviously be applied in many foreign cement production line, but also makes good use of the results of the International Conference on SAF Dole in 2009 on, to be the experts reached a consensus: vertical mill is an advanced, economical, practical and advanced grinding equipment.

However, due to technical limitations and lack of knowledge, cement vertical mill has not been fully opened in the Chinese market, only some cement companies attempt, reached the following conclusions:

1, although the roller press system less investment, but the late equipment and more, so large area, high construction costs, overall doing, vertical mill and roller press with a total investment considerably. when Cement vertical mill grinding cement , in addition to clinker, but can add up to 30% of the fly ash and slag powder, but ball mill grinding fly ash, the proportion of participation can not exceed 10%, so the waste recycling can greatly reduce corporate environmental taxes.

2, cement vertical mill compared to roller presses , a significant saving of cement per ton compared with roller press process saving 3-5 degrees. It is reported,Xinxiang Chaeng Co. cement vertical mill electrical energy consumption 25kWh / t, that is to say: only a 5000TPD cement clinker grinding Energy Saving: 15kWh / tX5000t / dX300d = 2250,0000kWh (ie one year cement clinker grinding degree can save 22.5 million), energy-saving effect is very obvious.

Cement vertical grinding mill collection, drying, classification as a whole, less auxiliary equipment, a machine can, small footprint, small dust pollution, a new generation of new environmentally friendly cement grinding equipment, in line with the national energy saving policy.

known domestic manufacturers -Vertical coal mill

Coal mill is to crush and pulverize coal machinery, it is important pulverized coal auxiliary equipment. Coal grinding mill is made of pulverized coal, mainly through crushing, and pulverizing. And in the trend of environmental protection, our customers started looking for more advanced technology, higher resource utilization of coal mill, the mill is now developing a new state coal vertical mill.

Chaeng(Great Wall Machinery) has builded more than 70 waste slag production line for domestic and foreign customers in the field of construction waste grinding of waste . At the same time, it increased R & D in power plants, cement plant, coal chemical equipment required for vertical mill products. As domestic first-class grinding system integrated service provider, we have launched the Great Wall Machinery domestic technology is mature, leading coal vertical mill equipment, mainly used in electric power, metallurgy, building materials,Chemical and other industries grinding system. we provide Coal vertical mill according to customer needs, to meet the unique requirements of each customer. In terms of energy consumption, more savings can reach 30% of the target!

Chaeng has extensive experience in the vertical mill machinery research and development, construction equipment, in the research and development of useing vertical mill, while our technical staff found that coal vertical mill constructed on the existence of some differences with conventional vertical mill. The following small series will take you briefly explain coal vertical mill equipment and conventional vertical mill residue differences.

Its working principle is the same. Conventional vertical roller mill and coal mill are mainly composed of roller, disc, rocker, splitter, transmission, chassis, roller pressing device, roller lubricating device, the housing limit device and other components. Working princine:material through the feeding device fell on the disc, the disc of material surrounding movement, the material to be crushed under the force of several roller under the action of centrifugal force. After grinding the material is from the hot gas through the blowing wind the ring, while the coarser material blown back again grinding disc, on the other hand to the suspension materials for baking Qian, a fine powder by hot air into the separator grading, qualified fines are collected down precipitator, substandard meal back down to the disc.

The difference is that the different local structures of coal vertical mill for coal This material caused.

1, coal vertical mill roll sets can be used upside down, helps improve the coal mill production, but also reduce wear and extend its life.

2, coal vertical mill installation of explosion-proof devices to ensure safety in production. That explosion-proof valve is provided on the housing to prevent the pulverized coal explosion reasonable, to ensure safe use of equipment.

3, coal vertical mill employed is a disc-shaped disc and tire-shaped roller sleeve, this material is more suitable for coal.

4, vertical coal grinding mill roller bearings require no special seal. Roller device using a swap-aligning roller bearings, seal chamber extends to outside the case, no contact with the dust and gas, so long as you can make a simple sealed roller bearing not into dust, no sealing fan.

5, coal vertical grinding mill transmission parts, no secondary transmission means.

6, slag site simple. Coal vertical mill less slagging cover with no need to install slagging valve.

Chaeng dedicated vertical mill slag production line

As a major mining equipment manufacturer,Chaengs' grinding equipment experienced half a century of development, independent innovation in the introduction of foreign advanced technology, based on, and promote the further development of ultra-fine powder technology.

Chaeng In response to the State efficient, environmentally friendly energy policy appeal, which started towards the intelligent milling equipment, energy saving direction, GRM series vertical mill slag production line is introduced into the developing efficient and environmentally friendly equipment start.

    

Chaeng slag vertical mill production line Why can emerge in the field of environmental protection and efficient equipment?

First, the Chaeng vertical mill slag processing simple:

Chaeng vertical mill machine Applications mainly concentrated in the construction industry, slag vertical mill performance benefits of a stand-alone operation is particularly evident, a vertical mill machine can play crushing, grinding, classification and other functions. Thus, the Chaeng slag vertical mill production process layout is very simple, completely replaced the old production line in various combinations of equipment, simplifies the production process of the material.

Second, vertical mill high production efficiency:

Chaeng Vertical Mill grinding principle is to direct rolling material crushing, ball mill higher productivity than about 50%, to improve the economic efficiency of enterprises, in the shortest time cost recovery has an important significance.

Mentioned slag production line of high efficiency, quick recovery of costs, had to talk about Xinxiang City Star cement plant, the cement plant in 2011 and a one-time signed a 600,000 tons a host device GRMS46.41 slag vertical mill and 300,000 t/a of slag production line two construction contracts with Chaeng. And officially put into operation in 2012, put into operation two years ore sales are very popular products in short supply! Soon recover the cost, and then in 2013 with the construction of Chaeng a production line of 600,000 t/a slag grinding line, which production line in early April this year, production equipment running smoothly considerable economic benefit.

Third, the vertical mill produce high intelligence:

Chaeng GRM series vertical mill slag production line design principles are very intelligent. Well-known mill main wearing parts are grinding roller and liner, the wear of these parts in contact with the material directly subject to relatively high. In order to reduce equipment wear and reduce post-maintenance costs, Chaeng vertical roller mill liner sleeve and no direct contact. Millstone intermediate roller sleeve and leave some space to prevent equipment wear and vibration material crushing process of causing.

Fourth, the production of environmentally friendly high-performance roller mill:

Vertical mill slag processing equipment prices 30% lower than the cost of an ordinary slag production line, but they can achieve higher material production capacity. As raw material mill device of choice, the use of closed vertical mill grinding system for production, will not leak dust, will not pollute the environment.

Fifth, customers across the country:

Chaeng Through years of efforts to develop a series of GRMS slag vertical mill, vertical roller mill slag, GRMK series cement vertical mill is fully equipped with an annual output of 20-100 ten thousand tons vertical mill slag production line capacity, and its products sold to various provinces in the country, such as: Shanghai Baosteel and Chaeng signed an annual 1.5 million tons (2 × 60 tons of slag, steel slag 300,000 tons) of composite powder production line turnkey contract, Hebei Xinji Aosen steel plant 600,000 tons of raw ore total package, Hejin City, the Galaxy cement plant annual output of 300,000 tons of slag powder production line construction. Chaeng future vertical mill slag produced high economic and social benefits earned high market visibility and reputation.

Chaeng since its inception, has always been implementing the "people-oriented, integrity management" business philosophy has always adhere to the "Where to sell products, and services to go" service. Jiexin provide consumers with quality products and efficient service, and improve industry standards and make unremitting efforts.