Hot air recovery up-down alternative heating-drying equipment and method

Abstract

The invention discloses hot air recovery up-down alternative heating-drying equipment and a method. The problems that in the prior art, to-be-dried materials are low in drying speed and heat energy iswasted are solved, and the equipment and the method have the advantages of good drying uniformity and high drying speed. According to the scheme of the equipment, the hot air recovery up-down alternative heating-drying equipment comprises a drying cabinet, at least one drying layer is arranged in the drying cabinet, and to-be-dried materials are arranged on the drying layer; and a first pipelineis arranged at the bottom of the drying cabinet, a second pipeline is arranged at the top of the drying cabinet, the first pipeline and the second pipeline are crossed to form a hot air intersection,the hot air intersection is connected with an air inlet pipeline, a third pipeline is arranged between the second pipeline and the air inlet pipeline, a fourth pipeline is arranged between the first pipeline and the air inlet pipeline, a first valve is movably arranged between the hot air intersection and the second pipeline, and a second valve is movably arranged between the hot air intersectionand the first pipeline.

Description

technical field [0001] The invention relates to the field of drying and drying, in particular to a hot air recycling equipment and method for alternately heating and drying up and down. Background technique [0002] In the existing drying equipment, because the hot air is usually in a single direction, for the stacked objects to be dried, the hot air enters from a single direction, especially from the bottom to the top, and the temperature of the hot air is gradually reduced. The dried objects and the upper layer of dried objects are not easy to be dried, resulting in slow drying speed, and it is easy to waste more heat energy for the drying of the upper layer to be dried, and although the temperature of the hot air after drying decreases, it still has a certain The existing technology does not recycle this part of heat energy, resulting in low drying efficiency. [0003] Therefore, improving the drying efficiency of the drying equipment is an urgent problem to be solved at...

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the deficiencies of the prior art, the present invention provides a hot air recycling heating and drying equipment that alternately heats up and down. The drying equipment can realize the drying of hot air alternately up and down, effectively avoiding the uneven drying effect caused by drying in one direction. The drying is more uniform, and the efficiency of drying is also improved accordingly.

Images