CHAENG active Lime Production Line

CHAENG manufactures the complete set of equipments for the active lime equipment. Our company undertakes the design and manufacture of rotary kiln, shaft cooler, vertical preheater and so on. It meanwhile supplies refractory materials. Great wall corporation technology from abroad to manufacture the vertical preheater, shaft cooler and limestone rotary kiln.
Technical Features of Active Lime Equipment
1. Vertical preheater has an advanced structure. The preheater has effectively improved preheating effect. Limestone decomposition rate reaches 20% to 25%. Limestone of 10 to 15 mm grade could directly be used in this vertical preheater.
2.Shaft cooler in the rotary kiln makes the temperature of lime goes up to 800℃ plus ambient temperature. It makes the limestone suitable for transportation and storage. This cooler can also preheat the secondary air to over 7000℃. It reduces movable parts and special materials of the active lime equipment.
3.The two ends of the rotary kiln are sealed by fish scale type seal method. The air leakage rate is less than 10%. Radiant heat loss is therefore reduced.
Process Flow of Active Lime Equipment

1.Preheating
Limestone is heated to 900℃ by the 1150℃ rotary kiln gas in the preheater of active lime production line.
2.Calcining
After sends the limestone into the rotary kiln. The limestone is calcined and decomposed into CaO and CO2.
3.Cooling
Decomposed limestone is then sent into cooler of the active lime production line. The lime is cooled to less than 100℃ by cold air.
4.Waste Gas Treatment
The 600℃ hot air enters into rotary kiln and burns with coal gas. The waste gas is then mixed with cold air. Draft fan of this active lime equipment sends the waste gas into bag dust collector. Exhaust fan then discharges the waste gas into chimney.
5.Storing
After coming out of the cooler, the lime is transported to limestone storage silo of the active lime production line by vibrating feeder, chain bucket elevator and belt conveyor.

CHAENG production vertical roller mill product

Vertical roller mills are large grinding machines developed, designed and manufactured by CHAENG,CHAENG vertical mills feature a rational and reliable structure as well as an advanced process that combines drying, grinding, separation and conveying, which is suitable for grinding materials of different types and sizes.CHAENG vertical mills are widely used in industries such as cement, power generation, metallurgy, chemical and coal processing.A Vertical mill consists mainly of motor, planetary gearbox, grinding table, grinding rollers, rocker arms, mill stand, mill housing, separator, water spray unit, pressure device, lubrication system, and rocker arm sealing.

Rollers can be lifted and lowered automatically, thus the mill can be easily started with materials.Welded arc plate is used for sealing. Due to its uncomplicated structure, it is reliable in operation and provides for a good sealing effect.A centralized oil circulation system is applied for the lubrication of the roller bearings, which ensures the bearings to run at the most suitable temperature and with clean oil so that a long service life is achieved.A mechanical restraining device prevents friction and collision between rollers and the grinding table.A hybrid separator is used to improve separating efficiency.The hydraulic roller swing-out device provides for ease of maintenance.Low operation pressure of the hydraulic system reduces potential oil leakage and mill vibration, providing for smooth operation and reduced maintenance.
CHAENG can provide vertical roller mill,it is can grinding all kinds of material,such as coal , raw material , cement , slag and so on.if you have ang need for the VRM vertical roller mill，please contact online or leave your contact information，we will contact with you as soon as possilbl.

The Best Supplier of Slag Grinding Plant in China

With people’s knowing about the granulated blast furnace slag performance and economic value, now many cement and concrete enterprises start to produce and use granulated blast furnace slag. The activity granulated blast furnace slag used in cement production can replace large amount clinker, used in concrete can replace large amount cement and improve the concrete performance. It can lower the production cost and save energy.
With the developing of granulated blast furnace slag market, a lot of slag grinding plant suppliers came out. CHAENG ( Great Wall Machinery ) is one of the best supplier among them. During two years, we have cooperated with more than 60 enterprises like Shanghai Bao Steel、Aoshen Steel、Henan Meng Electric Cement、Chunjiang cement etc.
How the CHAENG slag grinding plant win the appreciation from customers?
CHAENG understand customers’ requirement, put out the EPC production line service. We provide full instruction and equipment production service from the early project plan to the finally production, including the raw materials test, projects application documents, project design and solve program, installation and turnkey test etc. CHAENG pursues the faithful, easy and good service. And in nearly two years, win more than 50 customers.
After the long time market test, now, CHAENG has win many loyal customers. Many old customers’ new slag grinding plant , still chose us.
Shanghai Bao Steel has cooperate with CHAENG for the Wuhan cement ball mill project in 2011 and Ningbo 150t/a steel slag production line project in 2013. Last year, they thirdly choose CHAENG as their partner of their slag-tech improving project, and build long time cooperation with us.
Xuchang Tengxin’s second 30t/a nickel slag production line still choose CHAENG. They sent a silk banner to us and quite satisfied with our project time limit, service and product quality.
Xinxin Cement’s third 60t/a slag grinding plant still choose CHAENG as their supplier.
Untill 2013, the slag grinding plant built by CHAENG has produced more than 11,850,000t slag powder. We can proudly say that, now the CHAENG is the first rate supplier of Chinese grinding industry.

Industrial Waste Slag Solution-Slag EPC Project

 In recent years, Southeast Asian countries, accelerate the adjustment of industrial structure, vigorously promote the industrialization, urbanization process, but the infrastructure construction is still in the ascendant, especially in Indonesia is flourishing demand for steel.this year is expected to more than 15 million tons, up nearly 10% on the previous year, and by 2025 the number will reach 26 million tons.
Growing metallurgical production inevitably produce large amounts of industrial waste slag. Currently Indonesia mineral slag, nickel slag and iron slag, processing is still in its infancy, almost no processing, some of them used for reclamation or fill the crater. Without any disposing, they will case the raise dust, pollute the air and soil, and silt the river. The toxic chemicals in them will even harm human and animals’health.
On 10th November, 2015, Chairman of Indonesia Growth Steel Group, came to CHAENG (Xinxiang Great Wall machinery co. LTD.) had made final inspection and signed about 300,000 t/y of nickel slag grinding line project, which will be put into operation in the second half of 2016. This cooperation indicatesCHAENG mineral slag EPC project, steel slag EPC project and nickel slag EPC project go abroad to the world again.
It is said that the utilization rate of steel slag for some developed countries reach 60%. For example, French and Canada use steel slag as ballast of railway. Japan and Germany use steel slag as cement raw material. Some countries of Western Europe extract the calcium, silicon, manganese and microelement in steel slag use as fertilizer, and all of those make steel slag re-apply in life, the problems of difficult stacking and environmental pollution are solved completely.
With people’s knowing about the GGBS (Ground Granulated Blast Furnace Slag) performance and economic value, now many cement and concrete enterprises start to produce and use GGBS. The activity GGBS used in cement production can replace large amount clinker, used in concrete can replace large amount cement and improve the concrete performance. It can lower the production cost, save energy and reduce emission.Such as Mineral slag is the waste slag discharged from blast furnace during pig iron smelting. It could be concrete admixture after grinding process.Nickel slag is the solid waste generated by smelting nickel iron alloy. The nickel iron alloy is the main raw material for stainless steel.Steel slag is the waste residue in the process of steel making, including converter slag and electric furnace slag, approximately takes 15-20 percent of crude steel capacity.Manganese slag is the waste of smelting Manganese. It could be the material of silicon manganese alloy after milling process.

Vertical roller mill is typically designed to grinding industrial waste slag to powder. The integrated vertical milling system, pioneered by CHAENG that has successfully built more than 100 mineral slag, steel slag and nickel slag grinding lines at home and abroad, can deal with all the slag mentioned above. GRM has been tested and verified by the practices, and also benefits millions of money for enterprises.
Advantage of CHAENG’S vertical roller mill
1. High efficiency and low power consumption in powder milling
2. The consumption of material is low in unit product
3. Low noise in material powder milling, operate with negative pressure, low dust pollution
4. Simple in technology flow, meanwhile finish the function of material powder milling, drying and powder selection
5. With easy operation system, saving labor cost.
6. Low area occupying, compact allocation, light weight in system equipment and low investment in civil construction

Slag grinding plant 2.0 system

To meet customer demand for integrated procurement, CHAENG ( Xinxiang Great Wall Machinery ) in the original "one vertical mill 6 service", based on the slag grinding plant integration services for a highly scalable system, launched a new "A vertical mill with eight services" mode, that is, slag grinding plant 2.0 system. 2.0 slag production line system from the initial production line design, color configuration to the vertical mill technology and environmental protection and other aspects greatly improved.
"8 Service" do customer projects housekeeper
CHAENG "TA vertical mill with eight services" comprising: Rmaterial testing,Programme design,Equipment manufacturing,Install,Debugging,Technical training,Standard production,Production contract eight aspects.From the project to the final pre-production, CHAENG to provide full guidance and equipment for main and auxiliary processing production, the maximum to meet your sourcing needs integrated, truly allows you to choose rest assured that the use of peace of mind, Service pleasant.

"Blue Lake" image representative of the CHAENG new green card
CHAENG ore line 2.0 system, the production line from the original primary colors red, gray, blue lake updates.
On the one hand, pure Acqua contains innovative features and calm, on behalf of CHAENG Technology , efficient product brand and corporate image steady thick.
On the other hand, it is as blue lake blue lake in general, but also contains the CHAENG concept of sustainable development. CHAENG in production and sales of each system is conducive to promoting the production, lifestyles and consumption patterns of resource conservation and environmental protection, and promote economic and social development and natural resources and the environment.

PI：slag grinding system components

Upgraded Listing intelligent vertical mill more energy efficient equipment
50 years in the field of grinding, CHAENG adhering to the "technology world, the Great Wall wisdom made" business philosophy has always been to product development and technological innovation as a top priority, ongoing optimization and upgrading of vertical mill system. The CHAENG and Henan University of Science and Technology and research institutes to establish a "research" base, developed to meet the current environmental policy development stand mill products, not only to improve the grinding efficiency, but also significantly reduce the energy consumption of grinding, won a good market reaction.

PI：Vertical mill structure principle

Applications
November 2015, the CHAENG and India Nisuke Steel Group concluded a successful annual output of 300,000 tons of nickel slag powder production line turnkey project contract, the production line used in the program is the CHAENG 2.0 new upgrade system. The project is currently being designed, civil engineering and equipment manufacturing stage, is expected in July 2016 formally put into operation.

PI：Su Steel 300,000 tons of iron slag powder production line project renderings

CHAENG to build the domestic first-class grinding system integrated service provider brand, adhere to the "customer satisfaction is our eternal pursuit of" business philosophy, we will continue to increase the vertical integration of mining industry chain, to provide more comprehensive one-stop total service solution program for customers to create more wealth!

Steel Casting Manufacturing and Internet integration is the trend of modern industry

 On May 4 State Council executive meeting,the Prime Minister again mentioned " 'Internet +' is the 'Made in China 2025' important support to promote the integration and development of the foundry industry and the Internet."
The meeting stressed the need to promote the depth of integration of the foundry industry and the Internet to speed up the "Made in China" upgrade.
The Prime Minister said "We 'Internet +' process of development, e-commerce is indeed walking in the forefront of the world, but in the foundry industry, use of the Internet, we still need to speed up the pace." "China is already a major industrial country, but from the industrial powers there are no small distance, which need to expedite the implementation of the foundry industry and the Internet depth integration process. "
At the meeting, the Prime Minister cites the example of Germany and the United States. "Germany 'Industry 4.0' mainly 'foundry industry + Internet', while the US is more 'Internet + foundry industry'. Although each other, and the path is not the same, but they are to enhance the level of the foundry industry." Li said "both have their own characteristics. we want to move industrial powers, it is necessary to absorb more experience in these two areas."
The Prime Minister also referred to the previous study, discussion of several examples: Haier become entrepreneurs by creating a platform for large enterprise employees; total nuclear "Hualong One," the core design, gathered via the Internet in more than 20 cities power more than 500 terminals, thousands of people focus on research.
"A feature of the Internet is a great 'collection Trimaran' through the Internet to find a solution in the world, you can save a lot of manpower and intelligence." Li said, "This is the only way of modern industrial development."
He stressed that to promote the innovation and development of the foundry industry innovation requires not only large enterprises, large enterprises and SMEs also need collaborative innovation. Local governments should support manufacturing enterprises to build Internet-based "double hit" platform, based on the national new industrialization demonstration base construction and national economic and technological development zone "double hit" demonstration bases. Telecommunications companies want to "double hit" base speed broadband access to further reduce costs.

Big data about use of the Internet to change the traditional casting industry, Li Keqiang to suit version Chinese garment industry to use an example that in the past Japan is not in Europe, has not come up with their own version, since a data collection by a very difficult . Big Data now provides a new path. Jiangsu, a clothing business two or three years ago, has accumulated more than 200 million version of the type of data. With big data, we can support customization basic version above.

"Relying on big data and other Internet technology, enterprise innovation level of the traditional casting industry has been significantly improved." Prime Minister said.

GGBS Vertical Roller Mill

Applied material:
Blast-Furnace Slag, building material, limestone,slag,rock, talc, etc.
       

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 Introduction of GGBS vertical roller mill
GGBS vertical roller mill is the equipment to grind Ground Granulated Blast furnace Slag (GGBS) into small particles.GGBS (fineness:4200-4500cm2/g) produced by vertical roller mills are being used to substitute clinker in conventional cement manufacturing as well as to partially replace OPC for ready-mixed concrete production, for which the percentage of GGBS usage is typically at 10-15% and 20-25% respectively.

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Features:
1. Good return on investment
The widely use of slag increases the market demand to slag gradually. In recent years, investment in slag production line has been a new favorite in investment market. One production line can recover the cost in 1-3 years.
2. Reducing the power consumption of slag micro powder preparation effectively.
According to the display of slag powder production measured data, traditional ball mill needs power consumption 75~80kWh for per ton slag micro powder. However, it needs power consumption 42~45 kWh for per ton slag micro powder if adopts advanced vertical roller mill technology, and it can be saving electricity 33~35kWh use of vertical roller mill production per ton slag, and power saving effect is very remarkable.
3. Reducing the environment pollution effectively in the process of slag powder preparation.
Slag powder vertical roller mill adopts the internal negative pressure system to reduce the dust spillover effectively. The equipment adopts advanced technology with low revolving speed, stable operation, low noise, and the noise does not exceed 85dB(A) from the mill 1 meter.
4. Removing iron effectively, increasing additional income.
The advanced technology of slag vertical roller mill can be removed the iron effectively from the slag, and no less than 1% iron content can not only protect the machine, but also can increase additional income.

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Investment income
According to association statistics, currently the world each year to produce slag the amount of over 90 million tons, steel slag utilization in 2013 less than 25% , over the past five years the cumulative amount of over 1.279 billion tons discard pile, and the number is increasing, steel companies to environmental management pose serious challenges.

Specifications

Model	Grinding Table Diameter (mm)	Roller Diameter (mm)	Roller Number (n)	Motor (kW)	Output (t/h)
GRMS26.21	2600	1600	2	1000	30
GRMS33.31	3300	1700	3	1600	50
GRMS35.31	3500	1800	3	1800	60
GRMS40.41	4000	1900	4	2240	70
GRMS43.41	4300	2120	4	2800	90
GRMS46.41	4600	2240	4	3150	105
GRMS48.41	4800	2240	4	3550	125
GRMS50.41	5000	2360	4	3800	140
GRMS53.41	5300	2500	4	4200	160
GRMS56.61	5600	2500	6	5000	180

Note: mill spectral pattern benchmark

1. Material medium friction (MFs)=0.9~1.0;
2. Material moisture max 15%;
3. Refined powder granularity 4200~4500 cm²/g;
4. Refined powder moisture 0.5~1.0%;
5. The concrete mill installed power and technology parameter will be adjusted appropritely basing on the actual material property and requirements of owner;

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Prodction line gallery:
 
    ggbs production line                                         GRMS vertical roller mill 
            stove system                                                              dust collector

         finished products warehouse                                          control system