Returning device and roller drying machine with same

Abstract

The invention discloses a returning device and a roller drying machine with the same. The returning device comprises a receiving hopper and a feeding pipe, wherein the receiving hopper is connected to one end of the feeding pipe which is internally provided with a poking rod; one end of the poking rod is connected with a rope type connecting piece; and the other end of the rope type connecting piece extends out of the feeding pipe to be connected with the outermost end of the hopper. The roller drying machine with the returning devicecomprises a roller body, a sealing cover at the end part of a roller and a charging device, wherein the roller body comprises N-level rollers, i.e., a first-level roller, a second-level roller,ellipsis and the Nth-level roller which are arranged from inside to outside in sequence; the discharging end of the second-level roller, i.e., the feeding end of the third-level roller, is provided with a plurality of the returning devices along the circumferential direction; the outermost end of the hopper is fixedly connected onto the inner wall of the feeding end of the third-level roller; the feeding pipe penetrates through the first-level roller to the inner part of the first-level roller inwards; and the opening direction of the hopper is consistent to the rotating direction of the roller body. The returning device disclosed by the invention has the advantages that automatic returning can be realized, multi-time circulation can be achieved, and the volume of the roller body and the whole drying machine do not need to be enlarged.

Description

technical field [0001] The invention relates to the technical field of drying equipment, in particular to a feeding device and a drum dryer with the feeding device. Background technique [0002] The drum dryer in the prior art generally prolongs the drying time by increasing the drying stroke, so as to achieve the purpose of drying. It is nothing more than increasing the length of the drum. If there are multiple drums, the number of stages of the drum will be increased, which will cause The structure of the drying equipment becomes larger, which increases the cost; in addition, the materials discharged after the first drying are transported back to the feeding device, and the materials are loaded twice and dried twice, so as to achieve the purpose of drying. When dealing with over-wet materials What's more, it needs to return materials many times, which requires a set of special return equipment, which increases the investment in equipment, expands the floor area, and al...

AI Technical Summary

Problems solved by technology

[0002] The drum dryer in the prior art generally prolongs the drying time by increasing the drying stroke, so as to achieve the purpose of drying. It is nothing more than increasing the length of the drum. If there are multiple drums, the number of stages of the drum will be increased, which will cause The structure of the drying equipment becomes larger, which increases the cost; in addition, the materials disc...

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