Materials: Dolomite,Ferrosilicon etc
Application: Magnesium Smelting Plant
Henan Zhengzhou Mining Machinery Co., Ltd began to manufacture equipments for Mg smelting industry from 1988, and focused on the technology upgrading and utilization. During 2003-2005, the company invented Vertical pre-heater for the calcination of dolomite. This kind of new pre-heater saves fuel by 40% and increases the output by 30%. The exhaust gas is recycled and dust emission can be controlled under 50mg/m3. This kind of new pre-heater takes up more than 85% in the market share. The company has got the patent of energy-saving rotary kiln, vertical pre-heater and vertical cooler.
Pidgeon process is applied in the company’s Mg smelting technology. This kind of process is advanced and reliable technology.
- More than 50 years experience in magnesium industry.
- Design capacity of single production line: 5,000-25,000 tons per year.
- Professional Process Design Engineers, Equipment Engineers, Electrical Engineers.
- Leading supplier of magnesium production line, and over 90% market share.
1. Energy Saving: The refractory lining of the rotary kiln consists of the outer insulation made of light refractory brick and inner compound refractory bricks, which will reduce the heat emission on the shell surface of the rotary kiln. The pre-heater at the end of the rotary kiln will recycle the heat to preheat the material and save fuel by 40% and increase the output by 30%.
2. Low Consumption: The vertical cooler at the discharge end of rotary kiln recycles the heat of the calcined dolomite which is discharged from the rotary kiln, and will preheat the secondary air up to 600℃. The vertical cooler is integrated with kiln hood to prevent the waste caused by heat emission from the discharged calcined dolomite.
3. Envioronmental Protection: Two phases of dust collection including cyclone filter and bag filter, will control the dust emission below the limitation of the national standard.
4. High Degree of Automation: PLC control system improve the working efficiency.
Step1: Calcined--The calcined dolomite granular
a. Process introduction: As a result of mining dolomite is too large in volume,So crushing and calcining bulk dolomite, make its become particles.
b. Main Products: Jaw Crusher,Conveyor,Vibrating screen,Vertical preheater,Rotary kiln,Vertical cooler,etc.
Step2: Grinding and balling--Raw material production and storage
a. Process introduction: Calcined dolomite, using a ball mill and other equipment to the grinding ball material, storage after production well.
b. The main equipment:Electronic batching scale,Bucket elevator, Ball mill, Screw conveyer ,FU chain conveyor,etc.
Step3: Reduction treatment -Reduction treatment raw materials
a. Process introduction: Refine the raw materials, product the qualified products and sales.
b. List of equipment and processes:Reduction furnace,Wind machine Vacuum pump,Jet pump,etc.
Step4: Refine--produce a product
a. Process introduction:Use of a series of equipment, refine the raw material, create quality products and sales them.
b. The main equipments:Refining furnace,Electronic moisture device,Pouring pump,Continuous casting machine,etc.
Parameter for different production capacity
Inclined Belt Conveyor
High temp. bag filter
High temp. fan
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