Heat pump dehumidifying band-type drying machine

Abstract

The invention discloses a heat pump dehumidifying band-type drying machine which comprises a material feed device, at least one layer of net band and a heat pump dehumidifying drying device, wherein the net bands are arranged in a temperature preservation box body; the material feed device is arranged at one end of the net bands and is used for delivering materials to be dried to the net bands; a box body at the tail ends of the net bands is provided with a material outlet; and the heat pump dehumidifying drying device is installed on the outer side of the box body and is connected with the bottom of the box body through an air supplying pipe. The heat pump dehumidifying band-type drying machine provided by the invention has the advantages of good energy conservation, stable drying quality, good environment friendliness, good safety, simplicity in operation and less maintaining quantity.

Description

【Technical field】 [0001] The invention relates to the field of drying equipment, in particular to a heat pump dehumidification belt dryer. 【Background technique】 [0002] Belt dryer is a very widely used drying equipment in the market at present, and it can be used in many industries such as food, vegetables and other agricultural products, sludge, chemical materials and so on. Existing belt dryers generally use steam, hot blast stove or electric heating as the heat source, adopt an open dehumidification method, dehumidify and take away a large amount of heat at the same time, the energy utilization rate is low, generally only 20-40%, and the operating cost is high; and Dehumidification is carried out under relatively high temperature conditions, the quality of the dried product is not easy to control, and is easily affected by human operation; using steam boilers or hot blast stoves as heat sources has unsafe hidden dangers, high requirements for operators, and high daily m...

AI Technical Summary

Problems solved by technology

Existing belt dryers generally use steam, hot blast stove or electric heating as the heat source, adopt an open dehumidification method, dehumidify and take away a large amount of heat at the same time, the energy utilization rate is low, generally only 20-40%, and the operating cost is high; and Dehumidification is carried out under relatively high temperature conditions, the quality of the dried product is not easy to control, and is easily affected by human operation; using steam boilers or hot blast stoves as heat sources has unsafe hidden dangers, high requirements for operators, and high daily maintenance work; And it is necessary to build an independent boiler room, which occupies a large area;

[0003] Most of the belt dryer heat source boilers are coal-fired, which causes great environmental pollution; when the equipment is running, the noise pollution is serious

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