Small Bauxite Mining Rotary Kiln for Ceramic Sand Proppant Production Line  

Brief Introduction of Bauxite Mining Rotary Kiln

At kiln head and material-back spoon are casted individually,which provides convenience for installation. It holds better heat resistance and corrosion resistance and abrasion resistance. Cold air will pass through coal air Rotary kiln furnace bauxite is a kind of hydrated alumina. The hardness of bauxite is 1 to 3. Bauxite is characterized by opacity and softness. It is widely applied to aluminum smelting industry. Bauxite rotary kiln mainly aims at processing bauxite products. It is composed of rotary part, support part, transmission part, kiln head cover, seal and combustion device. Protect plate at kiln head and material-back spoon are casted individually,which provided convenience for installation. It holds better heat resistance and corrosion resistance and abrasion resistance. Cold air will pass through cold air jacket in kiln head, which can evenly cool the cylinder and protect plate.The whole system is reliable. The kiln head adopts large volume method and split kiln door, which makes the air flow more stable. The system holds simple structure and easy maintenance. It adopts advanced seal technology. The combustion device adopts four-channel coal powder combustor. 

Working Principle of Bauxite Mining Rotary Kiln

It mainly consists of kiln body, sealing device for kiln tail, main and auxiliary driving device, burning device, discharging device, speed regulation , instrument control, PLC programming, interlocking device and dust-extraction device, etc.

CaCO3 is the main ingredient of the limestone, and CaO is the main ingredient of lime. The basic principle of lime burning is to preheat materials with low temperature, quickly burn them with high temperature, utilize the perheater and the kiln to heat the limestone and compose them into CaO and CO2., The chemical equation as below:

CaCO3——CaO+CO2↑ -Q
Technological process: At first , preheat the limestone to above 800℃, they will start to compose, And then, they will be pushed into kiln for further burning by the push rod actuator, until the temperature reaches about 1200 ℃. Finally, after cooled by cooler, they will be discharged out.

Features and Benefits of Bauxite Mining Rotary Kiln

1. Widely range of adaptability to raw and fuel materials;
2. Sturdy structure, smooth running, large capacity and good quality;
3. Energy conservation, waste gas as the second useful source, recycling economy;
4. come up to the discharging standard with low NO emissions;
5. PLC auto-control system, centralized control in productive process.    

Main Technical Parameters of Bauxite Mining Rotary Kiln