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Slag Grinding Plant

Annual Output : 20 tons --1.5 million tons

Application Equipment : GRMS slag vertical mill

Grinding materials : blast furnace slag,Steel slag,nickel slag,Manganese slag

Equipment matching : Belt feed+Vibrating screen+slag vertical mill+hot blast stove+dust collector+warehouse

As the important equivalent substitutes for cement production,GGBFS can not only significantly improve the overall performance of cement and concrete, but also significantly reduce the production cost. Now it has been widely used in cement plant, grinding station and steel factories as a new kind of high effectively admixtures. For this situation, we may say: "who first invests will first benefits."

CHAENG (Great Wall Machinery) can undertake 20 tons --1.5 million tons of Blast furnace slag/Steel slag/Nickel slag/Manganese slag powder production EPC projects. Up to now, CHAENG has constructed more than 100 slag grinding production lines at home and abroad.

Process Description

The stacked slag is packed and feed by the forklift trucks, then transported by belt conveyor. During transmission, the slag will pass through the iron separator and vibrating screen, then through the weighing equipment and elevator, finally come into the vertical roller mill. With the hot air form cowper stove, the slag after grinding, will come through the separator, while drying. Slag meets the fineness requirement will pass through the separator, then delivered by air blower and elevator, finally come to the storage silo.

GGBFA Production Line Workflow Diagram

Energy-saving, environment friendly, simple process, high intelligence

Nowadays, the slag vertical roller mills are widely accepted by customers, but some customers may still doubt about the vertical roller mill and ball mill. By doing research in more than 10 customers factory, we have summed up these difference between this two kinds of mills.

Vertical mill and ball mill process contrast

Investment return

Slag grinding line investment returns analysis

Take our 600,000 t/a slag power production line as an example, the total investment of this project is RMB 50 million. It took into production on April, 2011. Within 2 years, all the investments has returned and now is benefits. The investment details list as below:

Project	index	actual motion
commissioning date	commissioning date	april,2011
investment calculations	total investment	50million
cost account	cost of raw material	70 yuan/t
	Production costs (including wages, electricity, coal, maintenance fees, cost of sales, etc.)	50 yuan
profit calculation	Price	160 yuan/t
	profit per ton	30 yuan/t
	annual profit	30*60million=1800million
economic benefit	2 years and 10 months recycling all investment (now in a state of pure profit)
The quality of slag powder	Specific surface area	430 m3/kg
	7 d activity index	Can reach 100%
	activity index	Achieve GGBS national standard S95 level above
Product Sales	Product sales region	Product sales in xinxiang, shangqiu, xuchang, etc

Product advantages

1. The introduction of the German Loesche vertical mill technology, process system simple.

2. equipment operation rate, energy saving and environmental protection.

3. the system is easy to operate, save a lot of labor costs.

4. the latter parts replacement is simple and convenient

Technical Parameters

Equipment selection recommendations:

CHAENG already has more than more than 100 customers recently, among them, the capacity of 1 million t/a, 600,000 t/a and 300,000 t/a has occupied more than 80%. Below sheet has show the main equipment specs and parameters of these three capacities.

 

Product Specificationsct	GRMS53.41	GRMS46.41GRM4	RGRMS33.31MS.31
Annual production(tons)	1,000,000	600,000	300,000
Designed production(t/h)	150	90	45
Raw materials input amount(t/h)	188	125	65
Actual output(t/h)	160	105	55
Final products fineness(m2/Kg)	500	500	500
Power consumption (KWh/t)	26.5	28.5	30
System power consumption(KWh/t)	35	37	42
Coal consumption (equivalent to standard coal)(kg)	17	18	18
Metal recovery of per ton slag(%)	0.2-0.3	0.2-0.3	0.2-0.3

Service support

In order to ensure customers'projects are carried out and completed successfully, Great Wall Machinery has brought out the " A vertical mill with eight services" and provide the guidance during the total project, from early start to final products.

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