Industrial refuse cracking burning tail gas treatment method

A technology for tail gas treatment and industrial waste, applied in gas treatment, chemical instruments and methods, separation methods, etc., can solve the problems of low purification efficiency of dry process, achieve convenient and fast replacement of materials, convenient replacement operation and maintenance, and not easy to block Effect

Active Publication Date: 2016-05-04
NINGBO HONGJING ENVIRONMENTAL PROTECTION TECH
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  • Application Information

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Problems solved by technology

However, the purification efficiency of dry process is relatively low

Method used

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  • Industrial refuse cracking burning tail gas treatment method
  • Industrial refuse cracking burning tail gas treatment method

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Embodiment Construction

[0018] Such as figure 1 The shown industrial waste cracking and incineration tail gas treatment system includes a cooling tower 1, a multi-layer filter tower 2, a multi-layer bag filter 3, a wet scrubber 4, a tail gas recirculation system 5, an induced draft fan 6, and an air compressor 7. Dust collection tower 8, blower 9. The tail gas produced in the cracking waste incinerator is connected to the air inlet of the cooling tower 1 through a pipeline, and the tail gas from the incinerator first enters the cooling tower 1, and the tail gas temperature is reduced to 180°C-150°C to meet the requirements of subsequent bag dust removal . The cooling water in the cooling treatment tower 1 is atomized by compressed air and then sprayed into the cooling treatment tower 1 to directly contact with the exhaust gas. The height of the cooling treatment tower is set high enough to ensure that the sprayed atomized water can completely evaporate. While cooling down, part of the dust in the e...

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Abstract

The invention discloses an industrial refuse cracking burning tail gas treatment method. Tail gas sequentially passes through a cooling treatment tower, a multi-layer filtration tower, a multi-layer bag-type dust collector, a wet scrubbing tower and a tail gas recirculating system, and dust, heavy metal steam, organics, nitric oxides, nitric oxide and pungent odors existing in the tail gas are effectively removed. According to the treatment method, the odor removing and purifying efficiency is high, the multi-layer filtration tower is small in adsorption resistance coefficient, low in energy consumption, not prone to blocking, convenient to replace, operate and maintain in the later period and low in operation cost. The purification efficiency of the tail gas treated through the treatment system reaches up to 99% or above, and the pollutant concentration is lower than the national emission standard.

Description

technical field [0001] The invention relates to a method for treating tail gas from cracking and incineration of industrial waste, which belongs to the field of waste gas treatment in the field of environmental protection. Background technique [0002] Domestic waste incineration technology has attracted attention due to its ability to reduce, recycle and harmlessly treat waste, and can greatly reduce the landfill area of ​​waste. At present, 68 waste incineration plants have been built nationwide (except Hong Kong, Macao, and Taiwan), with a processing capacity of 33,000 tons per day. The incineration rate has increased from 2.9% in 2013 to the current 12.9%. Due to the particularity of domestic waste, a large amount of gaseous pollutants will inevitably be produced during the incineration process. If effective treatment is not carried out, it will cause serious pollution to the environment and endanger human health. [0003] The dry purification process has been widely us...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D50/00B01D53/75B01D53/44B01D53/56B01D53/50B01D53/68
CPCB01D46/023B01D50/00B01D53/44B01D53/502B01D53/56B01D53/68B01D53/75B01D53/78F23J15/022F23J15/025F23J15/04F23J15/06B01D2251/604B01D2251/602B01D2251/404B01D2251/304B01D2251/606B01D2253/102B01D2258/0291B01D50/60Y02C20/30
Inventor 张文国
Owner NINGBO HONGJING ENVIRONMENTAL PROTECTION TECH
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