Three-stage multi-circuit dryer

Abstract

The invention provides a 'rotary rake jumping' three-level multi-loop drying machine. Three drying rollers are sleeved together. A guide rail is arranged on the outermost-level drying roller. A rotary rake device is arranged in the drying rollers, and the rotary rake device penetrates through end caps of the two sides of the drying rollers to be axially assembled on a rotary rake support. The inner walls of the second-level drying roller and the third-level drying roller from inside to outside are provided with evenly-distributed guide plates and lifting plates, and the inner wall of the first-level drying roller is divided into a quick guide section, a drying section and a reverse guide section. The drying time in the first-level roller is increased, and drying efficiency is greatly improved on the premise that the number of layers and the lengths of the rollers are not changed.

Description

technical field [0001] The invention relates to the technical field of material drying, in particular to a three-stage multi-circuit dryer. Background technique [0002] In the prior art, the multi-stage drum dryer generally implements the material to move back and forth inside the dryer in a zigzag line through layers of drums, and achieves the purpose of drying by prolonging the walking time of the material, generally on the inner wall of the drum. There are a material guide plate and a material lifting plate, the material guide plate is used to push the material forward, and the material lifting plate is used to raise the material so that it can be more fully in contact with the hot air. The material is continuously advanced under the push of the material guide plate, one step From the first stage drum to the last stage drum in one step, this is the case of the single-stage drying drum, multi-stage drying drum and its new high-humidity material dryer disclosed in Chinese ...

AI Technical Summary

Problems solved by technology

[0002] In the prior art, the multi-stage drum dryer generally implements the material to move back and forth inside the dryer in a zigzag line through layers of drums, and achieves the purpose of drying by prolonging the walking time of the material, generally on the inner wall of the drum. There are a material guide plate and a material lifting plate, the material guide plate is used to push the material forward, and the material lifting plate is used to raise the material so that it can be more fully in contact with the hot air. The material is continuously advanced under the push of the material guide plate, one step From the first stage drum to the last stage drum in one step, this is the case of the single-stage drying drum, multi-stage drying drum and its new high-humidity material dryer disclosed in Chinese utility model patent 200620031704.6. In order to improve the drying effect, only The ability to increase the number of layers of the drum has certain limitations. People in the industry have been looking for a solution to improve the drying effect without increasing the number of layers of the drum. So far, no better technical solution has been found.

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