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Clinker rotary kiln

Clinker rotary kiln belongs to building materials equipment, can be pided into cement kiln, metallurgy chemical kiln and lime kiln according to different materials. The cement kiln is most used for calcining cement clinker. It has wet type and dry type.

dry process rotary kiln

According to different heating methods, it can be pided into internal heating kiln and external heating kiln.

The materials in the internal heating kiln will directly contact with flame and smoke, and realize oxidoreductase after suitable adjustment. The inner wall of cylinder is firebrick. Both ends are poured by high strength wear-resistant materials. The soft sealing methods can completely eliminate dust pollution. The length of cylinder can reach 60m; the high temperature can reach 1600 degree. It has large output and the applicable fuels are liquefied petroleum gas, natural gas, coal gas, fuel oil, pulverized coal, coal.

The materials in the external heating kiln will not directly contact with flame and smoke. The heat source will heat the shell to warm up the materials. The inside of heating furnace is refractory fiber which can reduce the power consumption. Be restricted by the heating method and cylinder material, the length of cylinder should be less than 15 meters; the temperature should be less than 1200 degree. It has small output and the suitable heating sources are electricity, gas, oil and coal.


1. In the building materials industry, in addition to cement clinker the rotary kiln can also burn clay, limestone, slag and refractory materials to make them stable strength and molding. 

2. in the ore dressing process, it can roast lean ore to increase the magnetic.

3. in the chemical industry, it can be used to produce soda, phosphatic fertilizer and barium sulfide. It has the features of low power consumption, high efficiency and large output.

4. in the environmental protection, it has more than 20years of history to burn hazardous waste by the rotary kiln in the developed countries, which not only makes waste reduction, harmless, but also re-use the waste to save the energy.

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