Method and device for drying materials

Abstract

The invention relates to a method and device for drying materials. A moving bed drier consisting of heating plates which are alternately sloped in the opposite direction is driven by a swinging mechanism to swing, and the sloping angles of the sloped heating plates are extended, so that the materials are promoted to flow, moving of the materials on the heating plates and material transporting between the heating plates from top to bottom are realized, and high-efficient drying of the materials in the moving bed drier and smooth material moving are achieved; through the adjustment of swinging range and swinging speed, the adjustment of drying capacity is realized, and ordered controllable moving of the materials from top to bottom is simply realized; the control of thickness of feeding layers of the heating plates of the materials and interface updating of materials in layers and heating surfaces are also realized, and smooth moving and smooth discharging of the materials are realized.The method disclosed by the invention has the characteristics of being low in investment cost, low in operation power consumption, low in equipment wear, low in dust removal load, and simple and efficient in device, and a high-efficient low-cost technique and device guarantee are provided for drying of the materials.

Description

technical field [0001] The invention relates to a material drying method and device, in particular to a method and device for drying coal, mineral powder, grain, chemical raw materials and other materials to reduce moisture, and belongs to the field of drying and environmental protection. Background technique [0002] In industrial production, there are many unit processes that need to reduce the moisture content of materials, such as drying coal, mineral powder, grain, chemical raw materials and other materials to reduce moisture content. In the drying of these materials, there are many methods widely used in production, such as air flow drying, rotary tube drying, moving bed drying and so on. However, for materials with a large amount of fine powder and a wide particle distribution, airflow drying is likely to cause insufficient drying of large particles and excessive drying of fine particles due to the short gas-solid contact time; In the strong case, the rotary tube dry...

AI Technical Summary

Problems solved by technology

However, for materials with a large amount of fine powder and a wide particle distribution, airflow drying is likely to cause insufficient drying of large particles and excessive drying of fine particles due to the short gas-solid contact time; In the strong case, the rotary tube drying is easy to cause the friction and corrosion of the rotary heating tube due to the high relative velocity between the rotary tube and the material, resulting in the problem of high equipment cost; although the traditional moving bed can better alleviate the air drying and Rotary tube drying problem, but often the drying efficiency is relatively low, and the adjustment and control of the incoming and outgoing materials are difficult

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