Continuous rotating type vacuum drier

Abstract

The invention provides a continuous rotating type vacuum drier which is composed of a rotary vacuum drying bin, an air guiding pipe, supports, a vacuum unit, a heating device, a heat conducting pipe, a driving device and vacuum feeding and discharging devices. The vacuum feeding and discharging devices are mounted on a feeding inlet and a discharging outlet in the two ends of an inner bin body of the rotary vacuum drying bin. The inner bin body can rotate to work on the supports under the action of the driving device. Heat energy generated by the heating device is used for directly heating the rotary vacuum drying bin through heat conducting media. The air guiding pipe penetrates through one end of the vacuum feeding and discharging devices of the rotary vacuum drying bin to be connected with the vacuum unit. Materials are fed into and discharged from the rotary vacuum drying bin through the vacuum feeding and discharging devices, and the materials can be subjected to continuous vacuum drying. Cooling stand pipes and spiral blades in the inner bin body have a material stirring function, wet materials are not prone to caking in the drying process, and the material drying quality is optimized; energy is saved and the environment is protected in drying.

Description

technical field [0001] The invention relates to a dryer, in particular to a continuous rotary vacuum dryer. Background technique [0002] Now on the market, there are drying equipment for materials such as grain, chemical products, coal, gravel, sand, mineral products, pasture, crops, and local specialties. The material drying equipment performs vacuum low-temperature drying on materials under negative pressure and vacuum, which solves the problem. The hot air temperature is high, and the quality of the material is poor after drying; the heating of the vacuum drying of the material on the market now is to dissipate heat through metal exhaust pipes placed in parallel, the heat conduction and heat dissipation efficiency is low, the exhaust efficiency is low, and the vacuum degree is not well controlled. As the water vaporization temperature rises, the heat energy required for drying will increase a lot, and the waste heat will not be utilized; the dried material has dead corne...

AI Technical Summary

Problems solved by technology

[0002] Now on the market, there are drying equipment for materials such as grain, chemical products, coal, gravel, sand, mineral products, pasture, crops, and local specialties. The material drying equipment performs vacuum low-temperature drying on materials under negative pressure and vacuum, which solves the problem. The hot air temperature is high, and the quality of the material is poor after drying; the heating of the vacuum drying of the material on the market now is to dissipate heat through metal exhaust pipes placed in parallel, the heat conduction and heat dissipation efficiency is low, the exhaust efficiency is low, and the vacuum degree is not well controlled. As the water vaporization temperature rises, the heat energy required for drying will increase a lot, and the waste heat will not be utilized; the dried material has dead angles, and the material is easy to form agglomerates, which affects the uneven drying moisture of the material.

Images