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Classification of the Rotary Kiln

Published 2020/6/9 16:21:12

The application fields of rotary kilns involve iron and steel plants, cement plants, ferroalloy plants and other industries. Due to the different nature of the work, the requirements for the kiln are also different. For this reason, manufacturers usually classify them for users to choose, and the editor sorts out the specific classification of kilns. Let me share with you below. Let’s understand it together:
   First, according to the appearance is divided into variable diameter and diameter rotary kiln:
   1、Reducing diameter
   A kiln with a change in front and back diameter. Generally, the diameter changes before and after about 30cm. Compared with the traditional diameter kiln, it has the advantages of energy saving and high output, but it is difficult to process the variable diameter kiln and it is more difficult to process than the traditional diameter kiln. More stringent requirements for equipment.
   2. Path
   is a kiln with the same front and back diameters. Our common type of kiln was invented by German Dietz in 1883. After more than 100 years of evolution, the kiln has become a universal device. It has better effect and higher output than traditional shaft kiln. The processing is simple, but it is more energy-consuming than the variable-diameter rotary kiln.
   Second, according to usage: cement, ceramsite sand, kaolin and lime kiln, etc.
   3. According to the energy supply effect: gas, coal, mixed fuel kiln.
   Fourth, according to the feeding method: According to whether the material entering the kiln carries water, it can be divided into dry and wet rotary kilns. Wet kiln can be divided into inflow method and injection method. In addition to the dry method kiln, there is also a semi-dry method in which raw material balls are heated and calcined into the kiln.
  Five, according to the kiln type: according to the geometry of the barrel, it is divided into straight kiln, cold end expansion kiln, firing zone expansion kiln and both ends expansion kiln.
   Sixth, according to the heating method: there are internal heating kiln and external heating kiln, external heating kiln indirect heating, processing materials are highly toxic or require high flue gas concentration and high product purity materials.
  The above is to introduce the classification knowledge of rotary kiln. We mainly have different types according to the appearance, use and energy supply effect of the kiln, so that everyone can understand it more clearly. Therefore, when you choose, you must first clarify your needs. Only by clarifying the needs can you choose the right kiln, which can help us complete the work better.


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