Magnesite Rotary Kiln
- Capacity: 12-500t/h
- Fuel: coal, oil, or natural gas
- Temperature: 880℃
Magnesite Rotary Kiln for Sale
Magnesite rotary kiln is the core thermal equipment for producing magnesium materials, specialized in the calcination processing of magnesite. It can produce two products: Caustic Calcined Magnesite (CCM) and Dead Burnt Magnesite (DBM). Magnesite rotary kiln can achieve differentiated calcination through a precise temperature control system. The low temperature range of 800-1000℃ produces highly active CCM, and the high temperature range above 1600℃ can produce dense and inert DBM. It can also be further electro-fused to produce electro-fused magnesium oxide with the highest density and best performance. Magnesite can also be calcined using a vertical lime kiln or tunnel kiln, but a rotary kiln works best. Magnesite rotary kiln is widely used in metallurgy, chemical industry, building materials, and other fields.
Advantages of Magnesite Rotary Kiln
Good Product Quality
Magnesite rotary kiln adopts automatic temperature control, which can adjust the temperature according to the amount of materials, thus achieving high-efficiency calcination. The rotating cylinder is turned over regularly to ensure the uniformity of calcination.
Energy-saving and High Efficiency
Magnesite rotary kiln can realize the secondary utilization of kiln exhaust gas. In addition, sealing technology is used at the kiln head and kiln tail to prevent air leakage and material leakage, further improving the utilization rate of thermal energy.
Simple Structure
The Magnesite rotary kiln has a simple structural design, and many parts are designed to be easy to inspect. It effectively reduces equipment downtime and maintenance costs, ensuring production continuity.
Highly Adaptable
CCM and DBM have different requirements in terms of temperature and activity. The magnesite rotary kiln can flexibly adjust the calcining process by precisely controlling the temperature curve in the kiln and the residence time of the material.
Magnesite Rotary Kiln Process
- Raw Material Pretreatment: The mined magnesite ore is of different sizes and needs to be crushed into a particle size suitable for calcination by a limestone crusher. Ensure the uniformity and efficiency of calcination. 1. Then the crushed magnesite is transported to the feeding port of Magnesite rotary kiln through bucket elevator conveyor or screw conveyor machine.
- Calcination: The magnesite entering the kiln body gradually moves to the lower end under the action of the kiln's rotation and gravity. The magnesite is preheated by exchanging heat with the high-temperature hot air in the kiln, and some of the water is removed. The magnesite is then sent into the high-temperature calcination zone, where heat is transferred to the magnesite through flame radiation, hot air convection, and conduction of the kiln body refractory materials. 1. Magnesite decomposes at this stage.
- Cooling: The calcined magnesite enters the cooling zone to be cooled. CCM uses a rapid cooling system, and DBM uses a slow cooling system. Thereby ensuring the activity of magnesite.
- Dust Removal: The Magnesite rotary kiln produces a lot of fume and dust during calcination, which can be purified by using a baghouse dust collector or industrial cyclone dust collector. Finally, the waste heat is recovered.
Caustic Calcined Magnesite (CCM) VS Dead Burnt Magnesite (DBM)
—— AGICO’s magnesite rotary kiln is your best choice!
CCM
- CCM is a highly reactive magnesium oxide. It is produced by calcining natural magnesia at a low temperature of 800-1000℃. The refractory bricks of the kiln body can be ordinary refractory bricks, and there is no need to use high-temperature lining. The cooling method adopts a rapid cooling system to cool the magnesium oxide instantly, ensuring that the activity of the magnesium oxide is ≥62%.
- Due to its high activity, CCM can be used as an additive for cement and concrete. It can also be used for sewage treatment and flue gas desulfurization.
DBM
- DBM is produced by calcining natural magnesia at above 1600℃. The interior of the kiln needs to use high temperature resistant materials. The cooling method adopts a slow cooling system to ensure that the magnesium oxide has a dense crystal structure. The activity of magnesium oxide is almost completely lost.
- DBM has almost no activity, but has a high refractory temperature. It is very suitable for making refractory materials and used as the lining of vertical kilns, rotary kilns and other kilns.
AGICO's Professional Services
AGICO is a professional kiln company integrating scientific research and design, processing and manufacturing, construction and installation, commissioning and after-sales service. We use our expertise to provide customized, energy-efficient, intelligent and high-quality Magnesite rotary kiln solutions to customers around the world. We not only improve single machine equipment, if you need Magnesite rotary kiln production line, we can also provide professional solutions.
——The world’s leading supplier of Magnesite rotary kiln in the entire industry chain
One-stop Shop for all Your Calcining Needs
Limestone Crusher：jaw stone crusher, hammer stone crusher, cone stone crusher, impact crusher, gyratory crusher.
Limestone Grinding Mill: ball mill for limestone, raymond mill, vertical grinding mill.
Vertical Lime Kiln: annular lime kilns, twin shaft lime kilns, double beam lime kilns, single shaft kiln, maerz kiln, fercalx kiln.
Dust Collector Equipment: baghouse dust collector, industrial cyclone dust collector.
Maintenance of Magnesite Rotary Kiln
Lubricating
Lubricate bearings, gears, rollers and other components regularly. Too much or too little lubrication may cause damage to components.
Temperature Check
Regularly monitor the temperature of the kiln surface, especially near the wheel belt, and control the temperature within the specified range to avoid overheating and cracking of the kiln body.
Seal Inspection
Check the sealing effect of the sealing devices at the kiln head and kiln tail, and clean up the accumulated materials in time. Air leakage at the kiln head and kiln tail will affect the calcination quality of the materials.
Kiln Shutdown Inspection
Stop the kiln regularly for a comprehensive inspection. Strictly follow the maintenance regulations and keep complete maintenance records.
Related Magnesite Rotary Kiln
Equipment Parameters
| Size(m) | Basic parameters | Reducer | Rotor | Support | Weight(t) | |||
|---|---|---|---|---|---|---|---|---|
| Rotate speed(r/min) | Slop （%） | Output(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 | ZS125-5 | YCT315-4B | 45 | 3 | 142.6 |
| ZQ40-40 | Y112M-4 | 4 | ||||||
| φ2.5×50m | 0.62-1.5 | 3.5 | 5-6 | ZS165-5 | YCT355-4A | 55 | 3 | 180 |
| ZS50-1 | Y160M-6 | 7.5 | ||||||
| φ2.5×55m | 0.62-1.5 | 3.5 | 5-6 | ZS165-5 | YCT355-4A | 55 | 3 | 185 |
| ZS50-1 | Y160M-6 | 7.5 | ||||||
| φ2.8×55m | 0.62-1.5 | 3.5 | 6-7 | ZS165-5 | YCT355-4B | 75 | 3 | 215.6 |
| ZS50-1 | Y160L-6 | 11 | ||||||
| φ3.0×60m | 0.5-1.5 | 3.5 | 7-9 | ZS165-3 | ZSN-280-11B | 125 | 4 | 310.9 |
| ZS50-1 | Y160L-6 | 11 | ||||||
| φ3.2×64m | 0.4-1.5 | 3.5 | 8-10 | ZS130-16 | ZSN-280-11B | 190 | 4 | 337.8 |
| Zl50-1 | Y180L-4 | 22 | ||||||
| φ3.5×70m | 0.4-1.5 | 3.5 | 12-14 | ZSY500-40 | ZSN-315-082 | 280 | 4 | 394.6 |
| Zl50-14 | Y180L-4 | 22 | ||||||
| φ4.0×80m | 0.4-1.5 | 3.5 | 16-20 | ZLY630-35.5 | ZSN-315-12 | 355 | 4 | 564.8 |
| ZSY280-35.5 | Y200L-4 | 30 | ||||||