Energy-saving drying machine and energy-saving drying method

Abstract

The invention relates to an energy-saving drying machine. The energy-saving drying machine comprises a drying hopper, a vortex separating device and a charging hopper and further comprises a vacuum pumping device, an air moisture filtering device, an air heating device and a hot air pressurizing device which are connected in turn, wherein an air outlet is arranged above the drying hopper; an air inlet is arranged under the drying hopper; the vacuum pumping device is connected with the air outlet; the hot air pressurizing device is connected with the air inlet; the charging hopper is connected between the air inlet and the hot air pressurizing device; the vortex separating device is arranged in the drying hopper and comprises a spiral ascending guide chute; and the air inlet is opposite to the lower end of the guide chute. The invention also relates to an energy-saving drying method. The energy-saving drying machine has the advantages that the materials are difficult to accumulate, agglomerate and decompose, the drying effect is good, the drying efficiency is high, the energy consumption is effectively reduced and the drying time is shortened.

Description

technical field [0001] The invention relates to the technical field of plastic processing, in particular to an energy-saving dryer and an energy-saving drying method. Background technique [0002] The dryer is a mechanical device that uses heat energy to reduce the moisture content of materials, and is used to dry materials. The dryer vaporizes and escapes the moisture in the material (generally refers to water or other volatile liquid components) by heating to obtain a solid material with a specified moisture content. The purpose of drying is to meet the needs of material use or further processing. [0003] There are many types of mechanical equipment used for drying operations, which can be divided into normal pressure and reduced pressure according to the operating pressure (decompression dryer is also called vacuum dryer). According to the operation method, it can be divided into batch type and continuous type. According to the drying medium, it can be divided into ai...

AI Technical Summary

Problems solved by technology

This drying method is likely to cause local overheating and cause the material to agglomerate or decompose, especially some easily decomposed plastics, such as PVC, etc. At the same time, the material is accumulated in the container, resulting in low drying efficiency. Drying, after contact with the material due to the dry air has been mixed with some water vapor, resulting in longer drying time for the material in the container

Especially for some occasions that require high moisture content, this drying method leads to extremely low drying efficiency

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