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Device and method for heating and drying household garbage through steam with gas circulation

A domestic garbage and gas circulation technology, applied in the direction of heating devices, drying gas layout, combustion methods, etc., can solve the problems of unfavorable continuous large-scale production, multi-energy, intermittent, etc., to reduce the cost of tail gas treatment, reduce emissions, reduce The effect of clogging

Pending Publication Date: 2021-07-20
BEIJING AEROSPACE PETROCHEM TECH & EQUIP ENG CORP LTD
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, a large amount of steam needs to be discharged during the drying process. This method will lose more energy, and the operation process is intermittent, which is not conducive to continuous large-scale production.

Method used

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  • Device and method for heating and drying household garbage through steam with gas circulation

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Embodiment Construction

[0028] A steam-heated drying device with gas circulation, comprising a steam-heated tubular rotary cylinder dryer 1, the steam-heated tubular rotary cylinder dryer 1 is in the shape of a cylinder, the left end is the feed end, and the right end is the outlet At the feed end, a feed device 7 is installed at the feed end, and the steam heating tubular rotary cylinder dryer 1 is installed obliquely with a certain angle (<10 degrees) with the horizontal plane, and the side of the feed end is higher. One end of the material is lower; 101 garbage feeding ports are arranged on the feeding device 7 . A circulating gas inlet 105 is also provided on the steam-heated tubular rotary cylinder dryer 1, and a hammer 12 is provided outside the cylinder body of the steam-heated tubular rotary cylinder dryer 1 for vibrating the cylinder wall surface, Vibrate the rubbish stuck on the inner surface; arrange several heating tubes 107 in concentric circles inside the cylinder, and the circumference...

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Abstract

The invention provides a device for heating and drying household garbage through steam with gas circulation. The device comprises a steam heating pipe type rotary cylinder dryer which is cylindrical, the left end of the steam heating pipe type rotary cylinder dryer is a feeding end, the right end of the steam heating pipe type rotary cylinder dryer is a discharging end, a feeding device is installed at the feeding end of the steam heating pipe type rotary cylinder dryer, the steam heating pipe type rotary cylinder dryer is obliquely mounted, a certain included angle is formed between the steam heating pipe type rotary cylinder dryer and the horizontal plane, the side of the feeding end is high, and the discharging end is low; a garbage feeding hole is formed in the feeding device; and a circulating gas inlet is further formed in the steam heating pipe type rotary cylinder dryer, a hammering device is arranged outside a cylinder body of the steam heating pipe type rotary cylinder dryer, heating pipes are arranged in the cylinder body, a garbage discharging outlet is formed in the lower portion of the discharging end of the steam heating pipe type rotary cylinder dryer, a circulating gas outlet is formed in the upper portion of the discharging end, and a steam distribution joint, a steam inlet and a steam outlet are formed in the center of the right end of the cylinder body of the steam heating pipe type rotary cylinder dryer.

Description

technical field [0001] The invention belongs to the field of domestic waste treatment, and in particular relates to a device and method for heating and drying domestic waste by steam with gas circulation. Background technique [0002] In recent years, technologies such as domestic waste incineration or pyrolysis have developed rapidly. These technologies are faced with the problems of high moisture content and low calorific value in waste, and difficult treatment of landfill leachate when dealing with domestic waste. It is necessary to dry and dehydrate the garbage. The commonly used domestic waste dehydration treatment methods in engineering are: [0003] The first is to use aging or extrusion dehydration, but after dehydration by this method, the moisture content in the garbage is still high, and the dehydration efficiency is low. [0004] One is to use a drum dryer to dry. The garbage is mixed with hot air in the drum, the water in the garbage is heated and evaporated, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23G5/04F26B11/04F26B21/00F26B21/04F26B21/10F26B23/10F26B25/00F26B25/16F28B1/00F28B9/08B01D45/12
CPCB01D45/12F23G5/04F26B11/04F26B21/001F26B21/04F26B21/10F26B23/10F26B25/00F26B25/16F28B1/00F28B9/08
Inventor 娄少华许杰张彦军宋小飞张春雷丁建亮龚坤熊哲
Owner BEIJING AEROSPACE PETROCHEM TECH & EQUIP ENG CORP LTD
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