Drying equipment

Abstract

The invention relates to drying equipment. The drying equipment comprises a burning area (1) and a drying area (2). A roller (6) is arranged in the drying area (2). The inner wall surface of the roller (6) is provided with material lifting blades which are used for lifting up materials conveyed into the roller (6) from the bottom of the roller (6) and enabling the materials to fall off to form a material curtain along with rotation of the roller (6), so that the materials conduct heat exchange with hot gas generated in the burning area (1) in the falling process of the materials. According to the drying equipment provided by the embodiment of the invention, the inner wall surface of the roller is provided with the material lifting blades; the materials can be lifted up from the bottom of the roller and conveyed into the roller through the material lifting blades and can be made to fall off to form the material curtain along with rotation of the roller, so that the materials conduct heat exchange with the hot gas generated in the burning area in the falling process, and then the drying effect of the materials is achieved. The materials are lifted up and fall off through the material lifting blades. The contact area of the materials with the hot gas is increased. The drying efficiency of the materials is improved.

Description

Technical field [0001] The invention relates to the technical field of material drying, in particular to a drying equipment. Background technique [0002] The drying cylinder is the core component of the traditional drying equipment. It uses the convection heat exchange process between the material and the hot flue gas in the drum to achieve the drying and heating of the material. It is widely used in building materials, metallurgy, ore and other fields. Such as figure 1 As shown, the drying cylinder in the prior art is generally divided into three parts: the combustion zone 101, the drying zone 102 and the material guide zone 103. After the material enters the drying cylinder by the conveying device 105, it passes through the material guide zone 103. The function of the spiral blade 108 quickly enters the drying zone 102. Such as figure 2 As shown, the material forms a pile A under the action of the lifting blades 107 uniformly distributed on the inner wall of the drum 109, an...

AI Technical Summary

Problems solved by technology

However, the design and installation structure of this lifting blade is complicated, and the cost is high, and when the production material changes frequently, dozens or hundreds of blades need to be frequently adjusted to adapt to different working conditions, and the labor intensity is relatively high; After a period of time, the bolts and screws are prone to wear and become invalid, and no longer have the adjustment function, and the effect of adjusting the density of the material curtain cannot be realized

[0008] In view of the problem that the distance of the material curtain affects the fuel combustion efficiency, the technical solution commonly used in the prior art is to increase the length of the combustion zone to ensure that the flame can fully burn

However, although increasing the length of the combustion zone can ensure the space required for fuel combustion, it will lead to an increase in the overall length of the drying cylinder, and the work energy consumption and production costs will also increase.

Images