Composite dryer with solar collector provided with double air channels

Abstract

The invention discloses a composite dryer with a solar collector provided with double air channels. The composite dryer is characterized by comprising the solar collector, a drying tunnel section, a heat source section and a circulating fan section; the heat source section and the circulating fan section are respectively arranged at two ends of the drying tunnel section, and hot air generated by the heat source section flows through a hot air channel and flows into the drying tunnel section under a traction effect of the circulating fan section; an air outlet of the solar collector is communicated with the heat source section; and the solar collector is a hot air type integral collector integrated with a building and is provided with the two air channels. The composite dryer has the advantages that the hot air is generated by solar energy, the fresh air heat exchange efficiency is improved, temperature gradients of two ends of the solar collector are increased, the temperature difference between the two ends of the solar collector is increased by 10-20 DEG C by a method as proved by practice, and the solar energy utilization rate is increased by nearly 30%.

Description

[0001] technical field [0002] The invention mainly relates to a composite dryer for efficient utilization of heat energy. Background technique [0003] 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 [0004] Purpose of ...

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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