Heat pipe type roller dryer

Abstract

The invention discloses a heat pipe type roller dryer which comprises a roller drying cabin, a raceway, a gear ring, a three-way connection device, a discharging device, an exhauster, a riding wheel and a driving device. Thermal energy carried by a medium is conducted to and heats material in the roller through a heat conduction pipe and heating pipes of a heating device; the radiating area of a heater provided with a heater strip of a heating sealing head is increased by 8-35 times; the heater of the heating sealing head conducts thermal energy to a heating conducting working medium; the heating conducting working medium carries out heat conduction and exchange of liquid-vapor phase change in a pipe cavity; the thermal energy is conducted to material in the roller through the heating pipes for heat conduction and heating; the heating pipes in the rotary roller drying cabin conduct heat to the material; the heating pipes rotatably crossed with each other and having high density increase the collision contact rate with the material and the heat conducting area and improve the heat conducting and drying effect to the material; the low-temperature air entering the roller drying cabinplays a role in cooling the dried high temperature material; and when one of the heating pipes is damaged and leaks, application of the entire roller is not affected.

Description

technical field [0001] The invention relates to a tumble dryer, in particular to a heat pipe type tumble dryer. Background technique [0002] Nowadays, in the processing and production fields of grain, food, chemical industry, medicine, agricultural by-products, pasture, etc., it is necessary to heat and dry the materials; the hot air used in the drum dryer is the hot air exchanged through the heat exchanger outside the equipment, or the drum A heating chamber needs to be installed outside the drying chamber. The heating tank conducts heat to the cylinder of the drum drying chamber. The heat energy can only be used through secondary heat exchange. The heat exchange efficiency of heat energy is low. The use of heat energy is one-time, and the heat energy can be used effectively. If the efficiency is low, the heat energy required for drying will increase a lot. [0003] In some drum dryers, the heat energy used when drying the material in the drum drying bin is heated by the ...

AI Technical Summary

Problems solved by technology

The heat conduction area of ​​the heating plate at the lower end of the heating tube is limited, and the heating plate with a small heat exchange area only inputs a small amount of heat. The heat conduction working fluid affects the heat energy in the heat conduction tube to the inner cavity of the tube due to the limited heating area. The heat conduction heating of the heat-conducting working medium causes the total heat energy of the heat-conducting working medium to be insufficient, causing the heating tube to fail to output a large amount of heat energy, and the material cannot receive enough heat energy, which affects the drying efficiency of the drum drying chamber

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