Our company's magnesium metal production line utilizes the Pidgeon process to produce magnesium ingots, with dolomite and ferrosilicon as the raw materials. The annual production capacity ranges from 6,000 to 50,000 tons.
Zhengzhou Mining Machinery Co., Ltd. in Henan is a pioneer in Pidgeon process magnesium production systems, providing end-to-end solutions since 1988. With over 36 years of professional expertise and a 90% global market share, we are dedicated to designing, manufacturing, and optimizing magnesium ingot production lines. Our independently developed preheater enhances dolomite calcination, recovers waste heat from exhaust gases, and improves dust removal efficiency, ensuring emissions remain below 30 mg/m³.
✔ Pidgeon Process Project Cases
We have done many successful projects in both China and overseas countries. POSCO is world class iron and steel supplier in Korea. 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. The whole set of equipment for their magnesium plant are supplied by us.
✔ Complete Solution
We can provide plant design, equipment supply, consultation and technical service for dolomite & magnesite calcination.
Pidgeon process is applied in the company’s Mg smelting technology in the process of magenesium production line. 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 started to use vertical pre-heater for the calcination of dolomite. This kind of new pre-heater saves fuel by 40% and increases the output by 30%.
✔ Technical Advantages
1. Energy Efficiency
Dual-Layer Kiln Insulation: Lightweight refractory bricks + composite lining reduce surface heat loss by 30%.
Heat Recovery Systems: Vertical preheater recycles waste heat to cut fuel costs by 40%; vertical cooler preheats secondary air to 600°C.
2. Eco-Friendly Production
Dual Dust Control: Cyclone + bag filtration ensures emissions <50mg/m³ (50% below national standards).
Market-Leading Tech: 85% industry adoption rate for our patented preheater design.
3. Smart Automation
PLC-Driven Operation: Seamless process control for consistent 99.95% purity magnesium ingots.
Remote Monitoring: Real-time diagnostics and predictive maintenance support.
Step 1: 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 equipments: Jaw Crusher, Conveyor, Vibrating screen, Vertical preheater, Rotary kiln, Vertical cooler, etc.
Step 2: 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. Main equipments: Electronic batching scale, Bucket elevator, Ball mill, Screw conveyer, FU chain conveyor, etc.
Step 3: Reduction treatment - Reduction treatment raw materials
a. Process introduction: Refine the raw materials, product the qualified products and sales.
b. Main equipments: Reduction furnace, Wind machine Vacuum pump, Jet pump, etc.
Step 4: Refine - Produce products
a. Process introduction:Use of a series of equipment, refine the raw material, create quality products and sales them.
b. Main equipments:Refining furnace, Electronic moisture device, Pouring pump, Continuous casting machine, etc.
| Model(m) | Parameters（t/h） | Reducer | Motor | Support No. (a) | Weight(t) | |||
|---|---|---|---|---|---|---|---|---|
| Speed(r/min) | Slope（%） | Capacity(t/h) | Model | Model | Power（KW） | |||
| φ1.6×32m | 0.58-2.85 | 4 | 2 | ZQ75-50 | YCT250-4A | 18.5 | 3 | 46.8 |
| φ1.6/1.9×36m | 0.53-1.59 | 4 | 2.5-3 | ZQ110-7 | YCTZ50-4B | 22 | 3 | 57 |
| φ1.9×39m | 0.53-1.59 | 4 | 3-3.4 | ZQ125-7 | YCT315-4A | 37 | 3 | 71.79 |
| φ2.2×45m | 0.214-1.64 | 3.5 | 4-5 | Main：ZS125-5 | YCT315-4B | 45 | 3 | 142.6 |
| Auxiliary：ZQ40-40 | Y112M-4 | 4 | ||||||
| φ2.5×50m | 0.62-1.5 | 3.5 | 5-6 | Main：ZS165-5 | YCT355-4A | 55 | 3 | 180 |
| Auxiliary：ZS50-1 | Y160M-6 | 7.5 | ||||||
| φ2.5×55m | 0.62-1.5 | 3.5 | 5-6 | Main：ZS165-5 | YCT355-4A | 55 | 3 | 185 |
| Auxiliary：ZS50-1 | Y160M-6 | 7.5 | ||||||
| φ2.8×55m | 0.62-1.5 | 3.5 | 6-7 | Main：ZS165-5 | YCT355-4B | 75 | 3 | 215.6 |
| Auxiliary：ZS50-1 | Y160L-6 | 11 | ||||||
| φ3.0×60m | 0.5-1.5 | 3.5 | 7-9 | Main：ZS165-3 | ZSN-280-11B | 125 | 4 | 310.9 |
| Auxiliary:ZS50-1 | Y160L-6 | 11 | ||||||
| φ3.2×64m | 0.4-1.5 | 3.5 | 8-10 | Main:ZS130-16 | ZSN-280-11B | 190 | 4 | 337.8 |
| Auxiliary:Zl50-1 | Y180L-4 | 22 | ||||||
| φ3.5×70m | 0.4-1.5 | 3.5 | 12-14 | Main:ZSY500-40 | ZSN-315-082 | 280 | 4 | 394.6 |
| Auxiliary:Zl50-14 | Y180L-4 | 22 | ||||||
| φ4.0×80m | 0.4-1.5 | 3.5 | 16-20 | Main:ZLY630-35.5 | ZSN-315-12 | 355 | 4 | 564.8 |
| Auxiliary:ZSY280-35.5 | Y200L-4 | 30 | ||||||
