Air intake device for a green and energy-saving grain dryer

Abstract

The invention discloses an air inlet device for a green and energy-saving grain dryer, which comprises a housing and a dryer body. An air inlet pipe is arranged vertically inside the housing, and a horizontally arranged air mixing pipe is connected to the bottom of the air inlet pipe. , the middle part of the shell is provided with a support plate, the support plate is provided with a drying device and a fan, the end of the mixing pipe is connected to the air inlet of the drying device, the air inlet of the fan is connected to the air outlet of the drying device, and the A heating device is also provided, the air outlet of the fan is connected to the air inlet of the heating device, and the air outlet of the heating device is connected to the dryer body; an air outlet pipe is arranged horizontally on the top of the side wall of the dryer body on the side close to the shell. The air outlet pipe 1 is provided with a filtering device, the inside of the air inlet pipe is provided with an air outlet pipe 2, and the top of the air outlet pipe 2 communicates with the air outlet pipe 1; the present invention can effectively dry, heat and filter the airflow , and make full use of the residual temperature of the exhaust gas, reducing energy consumption.

Description

technical field [0001] The invention relates to an air intake device for a green and energy-saving grain dryer, which belongs to the field of dryer equipment. Background technique [0002] Grain dryer is a device for drying grain, which reduces the moisture content of grain, facilitates the storage and transportation of grain, and at the same time inhibits the growth of microorganisms. The existing grain dryer uses a hot air stove as a heat source. To provide heat for the grain dryer, the energy consumption is large, and the temperature is not easy to control, the heat conversion rate is low, and the burning of coal is easy to generate a large amount of waste gas, which is easy to cause pollution to the surrounding environment, and the drying temperature is not easy to control, with large fluctuations; and The gas discharged from the dryer contains a large amount of residual temperature that has not been utilized. If the residual temperature of the discharged gas can be full...

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Problems solved by technology

[0002] Grain dryer is a device for drying grain, which reduces the moisture content of grain, facilitates the storage and transportation of grain, and at the same time inhibits the growth of microorganisms. The existing grain dryer uses a hot air stove as a heat source. To provide heat for the grain dryer, the energy consumption is large, and the temperature is not easy to control, the heat conversion rate is low, and the burning of coal is easy to generate a large amount of waste gas, which is easy to cause pollution to the surrounding environment, and the drying temperature is not easy to control, with large fluctuations; and The gas discharged from the dryer contains a large amount of residual temperature that has not been utilized. If the residual temperature of the discharged gas can be fully utilized, the energy consumption will be further reduced. Therefore, it is necessary to design a hot air inlet device for the grain dryer

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