5,000-25,000 tpy dolomite calcination Equipment with rotary kiln
Company information:
Henan Zhengzhou Mining Machinery Co., Ltd was founded in 1956, and it is located in Wulong Industrial District in Zhengzhou which is the capital of Henan Province. It is at the junction of 310 State Road and Xingmi Road, and it is close to downtown and Xinzheng International Airport. It is very convenient in transportation..
The main products of company include: ball mill, rotary kiln, vertical preheater, cooler, crusher, metallurgical coke oven, magnetic separator, flotation machine, classifier, feeder, bucket elevator, 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 all over the country and exported to Russia, Korea, Vietnam, Malaysia, Nepal, Bangladesh, Mexico, Armenia, Africa, South America, etc.
At present, Henan Zhengzhou Mining Machinery Co., Ltd is the largest and most powerful equipment supplier for magnesium production and at the same time, our company has been playing an important role for 25 years in the market.
Equipment Manufacturing and Technical Service:
Henan Zhengzhou Mining Machinery Co., Ltd. is one of the largest and most professional suppliers of whole sets of equipments for magnesium production line. Our company has served more than 200 magnesium plants. We have more than 25 years of experience in magnesium industry and achieved a domestic market share of over 90%.
High Performance Magnesium Production Line:
1. ISO9001: 14000
2. Lifetime Service
3. Market share: 90%
We can provide complete set technology solutions and supporting production equipments of magnesium production line.
1). Design capacity of single production line: 5000-25000 tons per year
2). According to client's special requirements to design.
3). We have professional process design engineers, equipment engineers, electrical engineers, etc.
4). We have more than 50 years' experiences of production design, and the market share is over 90%.
2. Main Equipments:
Rotary kiln, ball mill belt conveyor, vertical preheater, vertical cooler, vibrating feeder, screw conveyor, bucket elevator, bag type dust, etc.
3. Technical steps:
1) calcine dolomite: Heat the dolomite to 1100~1200 temperature in the rotary kiln, then the dolomite changed into MgOCaO.
2) Dosing ball: Calculating. Dosing and grinding the MgOCaO...Ferrosilicon and flousper power, then press into ball.
3) Reduction: Heating the ball to 1200+10 tem in the reduction pot, keeping 8-10hour under the situation of 13.3PA or empty space. The MGO was reduct as magnesium vapour, then cooled into rough magnesium.
4) Refining magnesium ingot.: Heating the rough magnesium, and under the situation of 710 tempurature, made it into magnesium ingot, that is pure magnesium.
5) Scouring: Acid magnesium ingots, will with sulfuric acid, nitric acid cleaning surface or removed from the surface, make the surface appearance.
Production Process Introduction:
Fine crushed dolomites are transported by inclined belt conveyor and sent to the hopper on the top of vertical preheater. They are then discharged by feeding chute into the vertical preheater. These dolomites will be preheated to 800 degrees Celsius by flue gas of high temperature from the rotary kiln. After preheating, most of the dolomites will be discomposed. Then the dolomites are pushed out of the vertical preheater by hydraulic push-rod. By way of the transfer chute, they go into the rotary kiln for calcination with 1100-1250 degrees Celsius. After calcination, they are discharged from the rotary kiln into cooler for cooling to less than 100 degrees Celsius and then discharged for grinding in the next procedure.
Main Equipments for Magnesium Calcination:
Jaw crusher, vibrating screen, belt conveyor, vibrating feeder, vertical preheater, rotary kiln, vertical cooler, ball mill, bucket elevator, screw conveyor, air swept coal mill, ferrosilicon crusher, gas/coal burner, bag filter and so on.
Magnesium Rotary Kiln's Parameter:
| Magnesium rotary kiln |
| spec |
technical parameter |
speed reducer |
motor |
supporting quantity |
| (m) |
rev |
slope |
output |
type |
type |
power |
| |
(r/min) |
(%) |
(t/h) |
(KW) |
| Φ1.6x32 |
0.58~2.85 |
4 |
2 |
ZQ75-50 |
YCT250-4A |
18.5 |
3 |
| Φ1.6/1.9x36 |
0.53~1.59 |
4 |
2.5~3 |
ZQ110-7 |
YCT250-4B |
22 |
3 |
| Φ1.9x39 |
0.53~1.59 |
4 |
3~3.4 |
ZQ125-7 |
YCT315-4A |
37 |
3 |
| Φ2.2x45 |
0.214~1.64 |
3.5 |
4~5 |
main:ZS125-5 |
YCT315-4B |
45 |
3 |
| auxiliary:ZQ40-40 |
Y112M-4 |
4 |
| Φ2.5x50 |
0.62~1.5 |
3.5 |
5~6 |
main:ZS165-5 |
YCT355-4A |
55 |
3 |
| auxiliary:ZS50-1 |
Y160M-6 |
7.5 |
| Φ2.5x55 |
0.62~1.5 |
3.5 |
5~6 |
main:ZS165-5 |
YCT355-4A |
55 |
3 |
| auxiliary:ZS50-1 |
Y160M-6 |
7.5 |
| Φ2.8x55 |
0.62~1.5 |
3.5 |
6~7 |
main:ZS165-6 |
YCT355-4B |
75 |
3 |
| auxiliary:ZS50-1 |
Y160L-6 |
11 |
| Φ3.0x60 |
0.5~1.5 |
3.5 |
7~9 |
main:ZS165-3 |
ZSN-280-11B |
125 |
4 |
| auxiliary:ZS50-1 |
Y160L-6 |
11 |
| Φ3.2x64 |
0.4~1.5 |
3.5 |
8~10 |
main:ZL130-16 |
ZSN-280-11B |
190 |
4 |
| auxiliary:ZL50-10 |
Y180L-4 |
22 |
| Φ3.5x70 |
0.4~1.5 |
3.5 |
12~14 |
main:ZSY500-40 |
ZSN-315-082 |
280 |
4 |
| auxiliary:ZL50-14 |
Y180L-4 |
22 |
| Φ4x80 |
0.4~1.5 |
3.5 |
16~20 |
main:ZSY630-35.5 |
ZSN-315-12 |
355 |
4 |
| auxiliary:ZSY280-35.5 |
Y200L-4 |
30 |
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