Solar composite dryer

Abstract

The invention discloses a solar composite dryer which comprises a drying tunnel section, a moisture removal and waste heat exchange module, a flue waste heat exchanger, a heat source section, a circulating fan section, a hot air channel, a fresh air inlet and a solar collector. The moisture removal and waste heat exchange module and the flue waste heat exchanger are arranged on the top of the drying tunnel section. The solar composite dryer has the advantages that solar energy is effectively utilized to generate hot air, waste heat of moisture of the hot air and waste heat of a flue are efficiently recycled, the fuel coal utilization rate is greatly reduced, the agricultural product drying processing cost is reduced, and the solar composite dryer is favorable for protecting environments.

Description

technical field [0001] The invention mainly relates to a composite dryer for efficient utilization of heat energy. Background technique [0002] At present, all the traditional earth method brick drying tunnels and coal-fired furnaces used in the drying equipment are used in rural areas. The baking process is mastered by the experience of the baking master. The continuous control of fuel, temperature, and humidity is unstable, resulting in unstable product quality, high energy consumption, heavy smoke ash layer pollution, and high overall cost of baking. Due to the limitations of the structure, it is difficult to repair the equipment and take a long time, especially the fresh goods are not easy to stand for more than 24 hours and spoil, resulting in waste of raw materials. And the utilization of heat energy is very low, and the combustion heat energy of the fuel cannot be recycled, resulting in an increase in cost. Contents of the invention [0003] Purpose of the inven...

AI Technical Summary

Problems solved by technology

The continuous control of fuel, temperature and humidity is unstable, resulting in unstable product quality and high energy consumption, large pollution of flue gas ash layer, and high comprehensive cost of baking

Due to the limitations of the structure, it is difficult to repair the equipment and take a long time, especially the fresh goods are not easy to stand for more than 24 hours and spoil, resulting in waste of raw materials

And the use of heat energy is very low, and the heat energy of fuel combustion cannot be recycled, resulting in an increase in cost

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