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What Are the Reasons for the Dryness of the Rotary Kiln?

Pubdate:2022-08-23 17:55:26

Due to the inclined installation of the cylinder, the materials in the kiln move in the axial direction while turning over in the circumferential direction. So as to slowly flow through the whole cylinder and complete the dehydration and decarbonization process through complex physical and chemical changes. What are the reasons why many users put forward that the equipment is boring? Let me give you a brief introduction.

The dryness of rotary kiln is an operation that uses heat to remove local moisture in materials. The commonly used method is indirect or direct heat transfer drying method, that is, the heat is indirectly or directly transferred to the wet material of the rotary kiln with the hot gas as the medium, so that the moisture on the outer surface of the wet material evaporates and diffuses into the gas fluid through the gas film on the outer surface; At the same time, due to the vaporization of water on the surface of the material, there is a water difference between the inside and outside of the material, and the water inside the material diffuses to the outside in the form of gas or liquid, thus making the material dry. The water vapor pressure on the material surface needs to be greater than the partial pressure of water vapor in the dry medium. The greater the pressure difference between the two, the faster the drying speed, and the dry medium should take away the evaporated steam belt in time. If the pressure difference is zero, the boring operation will stop. This is a process of separating heat transfer and evaporation intensity. The boring function of the rotary kiln is to further reduce the moisture content of the product, so as to meet the requirements of the user or the next consumption operation, and make the use effect of the product better.

Through the above introduction to the causes of the boring rotary kiln, we have learned more about the equipment, so that we can use the equipment more conveniently and quickly. I hope this answer can help you. If you have any other questions, you can leave a message on our website.