Low-energy-consumption drying device

Abstract

The invention discloses a low-energy-consumption drying device. A fan (1) is sequentially connected with a gas heater (2) and a drying room (3), a hot water supply tank (12) supplies heat to the gas heater (2), cold water completing heat exchange is heated by a solar heater (14) and returns to the hot water supply tank (12), a regeneration fan (6) is connected with a first moisture adsorption device (4) and a second moisture adsorption device (5) through a solar gas heating device (17) respectively, and heated air performs desorption on the moisture adsorption devices in an adsorption saturation state. The low-energy-consumption drying device has the benefits as follows: solar energy is sufficiently utilized, power consumption used for water heating is reduced, energy consumption is greatly reduced, the device is more environment-friendly, green energy resources are sufficiently utilized, and the regeneration efficiency of the moisture adsorption devices is improved.

Description

technical field [0001] The invention relates to the field of leather drying devices, in particular to a drying device with low energy consumption. Background technique [0002] Drying is an extremely important process in the leather finishing process. The dyed leather should be squeezed and stretched for the first drying. At present, the commonly used drying method is to first use iron plate or vacuum drying to reduce the moisture content of the leather to 35-42%, and then dry it naturally or in a drying room to further reduce the moisture content of the leather to about 15%. Enter the next process. For the drying in the back, most factories use hanging to dry naturally, and the drying time takes about two days. The drying time is very long, which seriously affects the leather processing efficiency. When the leather is dried by blowing hot air, the moisture of the leather is taken away by the hot air. At present, the hot air with moisture is mostly discharged directly, whi...

AI Technical Summary

Problems solved by technology

In the latter part of the drying process, most factories use hanging to dry naturally, and the drying time takes about two days. The drying time is very long, which seriously affects the leather processing efficiency.

When the leather is dried by blowing hot air, the moisture of the leather is taken away by the hot air. At present, the hot air with moisture is mostly discharged directly, which leads to the waste of heat energy. There is also a method of recovering this part of air heat energy by setting a heat exchanger. , but the recovery rate is very low, and the waste of heat energy cannot be avoided

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