The ceramsite rotary kiln internal heating type rotary kiln medium temperature (950℃～1050℃) calcined ultrafine kaolin process technology is mature and domestically advanced, representing the development direction of ultrafine kaolin calcination technology. This calcination technology has low energy consumption and high output. The product has been dehydrated and decarbonized and whitened, and has stable performance. It is widely used in ferrous metallurgy, nonferrous metallurgy, chemical industry, building materials (cement), non-metallic minerals, refractory materials, papermaking, environmental protection and other industries. It has high unit volume and long kiln life. Long, high operating rate, stable operation, high heat transfer efficiency, low heat consumption, etc., it is an ideal calcination equipment.

Capacity: 3.5-26t/h
Model: Ø2.2×45m-Ø3.8×70m
Materials: bauxite, manganese powder
Application fields: Suitable for rubber, coating, chemical, glass, electronics and other industries

Ceramsite production process
The production of ceramsite rotary kiln adopts the expansion mechanism of ceramsite. The expansion temperature is carried out in the ceramsite rotary kiln, and then the material balls are well expanded under the action of gas to obtain the finished ceramsite. However, practice has shown that clay materials with good expansion properties hardly expand when heated slowly to the expansion temperature, and good expansion can be obtained if the temperature is raised rapidly. Therefore, the basic principle of calcining ceramsite is that the temperature of the material ball is moderately and slowly raised in the drying preheating kiln to prevent the material ball from cracking, and the temperature should be raised rapidly in the high temperature section of the ceramsite rotary kiln to achieve the ideal expansion effect.

Performance characteristics of ceramsite rotary kiln
1. The ceramsite rotary kiln has simple structure, high unit volume, long kiln life, high operating rate, stable operation, high heat transfer efficiency and low heat consumption.
2. Automatic temperature control of ceramsite rotary kiln, over-temperature alarm, utilization of waste heat from secondary air intake, and long service life of kiln lining.
3. The advanced kiln head and kiln tail sealing technology and device of ceramsite rotary kiln have remarkable characteristics such as stable operation and high output.
4. The ceramsite rotary kiln adopts the advanced hydraulic stop wheel device at home and abroad.
5. Domestic advanced technologies such as high-precision speed regulating valve and contact graphite block sealing device of ceramsite rotary kiln.
6. The ceramsite rotary kiln adopts a metering plunger pump with high metering accuracy.

working principle of Ceramic sand rotary kiln

The incoming bauxite with a particle size of 300-500mm is crushed and sent to the fluidized furnace dryer for drying, and then passes through the batching station with manganese powder and additives, and then enters the grinding system with eddy current separator to prepare fine powder. The raw meal powder with a density of more than 400 mesh is made into pellets with a qualified particle size by using a new type of granulator developed by Zhengkuang Machinery. The pellets enter the dryer at the end of the kiln, using the waste heat of the exhaust gas at the end of the kiln to reduce the moisture content of the pellets, and then enter the rotary kiln for calcination after screening. The calcined ceramsite sand is cooled by a single cooler and then sieved through a cylindrical sieve. The qualified particles with different particle sizes are packaged separately before leaving the factory, and the unqualified pellets are returned to the grinding system. The fuel for calcining in the rotary kiln can be gas, oil or solid fuel.

Ceramic Rotary Kiln Technical Parameters