Environmental Dolomite Calcinator for Magnesium Oxide Production Plant

We are a leading manufacturer of magnesium production line both at home and abroad, in the year of 2011, we signed an contract of annual output of 100000 tons of magnesium metal project with the world iron and steel giant Korean Pohang iron POSCO.

We can provide plant design, equipment/spare parts supply, consultation and technical service for dolomite & magnesite calcination.

- 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.

Raw material  Magnesite knowledge:

Chemical formula: MgCO3

Chemical composition of MgO (3): 35%-47%

CaO 0.2%-4%

SiO 0.2-8%

Fe2O3 is less than 1%

Al2O3 is less than 1%

Heavy burned or light burned magnesium Application:

Light burned magnesium ——can be made into many kinds of magnesium salts,used in medicine, rubber, synthetic fiber, paper and other aspects of theraw materials
Heavy burned——Refractory material, used in the manufacture of magnesia brick, magnesite chrome brick, magnesia, powder metallurgy.

Transported by inclined Belt Conveyor, the fine crushed dolomites will be sent to the Hopper on the top of Preheater and then discharged into Preheater by feeding chute. The high temperature gas from rotary kiln can preheat the dolomites to 800℃. Some of the dolomites can dissociate after preheating. After this process, the dolomites are push out by hydraulic push-rod and get into the Rotary Kiln for calcination with 1100-1250℃ through transfer slide. After calcination, all the materials are discharged into Cooler for cooling to less than 100℃ and then discharge to next process for grinding.

How to get magnesium?

ZK Crop Two Burning Magnesite Method –Heavy burned or light burned magnesium

Heating temperature 640℃: CaCO3 =CaO+CO2↑  Magnesite begin to decompose

Heating temperature 700-1000℃: Magnesite transfer into power-Light burned magnesium

Heating temperature 1400-1800℃: Magnesite transfer into block-Heavy burned magnesium(Heavy burned magnesium has high refractoriness)

Heating temperature 2500-3000℃:Fused Magnesium Oxide or melting

Through the high temperature calcining,  is not easy to combine with water and carbonate, High hardness,Resistance to chemical corrosionresistance, High electrical resistivity

Main Project of Magnesium production line(POSCO)

POSCO is South Korea’s seventh largest enterprise and would build a magnesium plant with capacity of 100000 tons per year. After investing more than 200 factories in China, they finally chose us as the cooperation partner. 

Location: South Korea
Project name: Mg Smelting Plant with capacity of 10000tpa
Project kick off: End of 2006
Contact with ZK Corp. begins from: Oct 2009
E&P Contract signed in: Jul 2011
Key facilities: 8-Pusher Pre-heater, Φ3×50 Rotary kiln, Φ2.4×20m Rotary cooler, Φ2.4×7m Ball mill and briquetter, etc.
Raw materials: Dolomite, Ferro-silicon and Fluorite.
Output: 10000tpa Magnesium ingot
Application of product: Mg alloys
Plant start-up in: Jun 2012

  We are the leading company of magnesium production lines both at home and abroad,in the year 2011,we have signed an annual output of 100000 tons of magnesium metal project with the world iron and steel giant Korean Pohang iron.

We can provide plant design, equipment/spare parts supply, consultation and technical service for dolomite & magnesite calcination.
- 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.  

Henan Zhengzhou Mining Machinery Co., Ltd (ZK) was found in 1956. After half century development, it becomes a comprehensive modernized enterprise, including the business service such as scientific research, design, develop, manufacture, sales, installation, test and training. The main products of company include: ball mill, rotary kiln, vertical pre-heater, cooler, crusher, metallurgical coke oven, magnetic separator, flotation machine, classifier, feeder, bucket elevator, pre-heater, dust collector, elevator, drier, and other equipments relate to metallurgy, cement, lime, mineral processing, refractory, chemical industry. The products of Henan Zhengzhou Mining Machinery Co., Ltd have been sold to every province of China and exported to Russia, Korea, Vietnam, Malaysia, Nepal, Bangladesh, Mexico, Armenia, Africa, South America and other countries and region.

 Outlook of Henan Zhengzhou Mining Machinery Co., Ltd

Over 60 Years Mining Equipment Manufacturing Experience

 A Team of Professional Engineers & Considerate After-sales Service

Address: Qiaolou caizhai industrial estate, Xingyang, Zhengzhou, Henan province, China.

Zip Code: 450122

Tel: +86 371  55902866

Welcome to visit our company and factory to learn more about us. Our factory is only 1 hour by car away from Zhengzhou Airport, which would be very convenient for your visit.