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High-temperature dust removal device for thermal desorption exhaust

A high-temperature dedusting and thermal desorption technology, which is applied in combined devices, dispersed particle filtration, and dispersed particle separation, can solve problems such as high dust content, high concentration of condensed water pollutants, and poor dedusting effect of desorption tail gas. Reduce the difficulty of handling and avoid the effect of clogging effect

Active Publication Date: 2015-01-21
中节能大地环境修复有限公司
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Problems solved by technology

The above treatment methods have the following problems: the dedusting effect of desorption tail gas is poor; the concentration of pollutants in condensed water is high and the dust content is high; the tail gas dust removal and subsequent tail gas cooling system are prone to blockage, and the difficulty and processing load of subsequent wastewater treatment increase
[0003] At present, there are patents on thermal desorption treatment methods and systems for contaminated soil, but for the treatment of high-temperature desorption tail gas, no method has been proposed to solve the above problems

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  • High-temperature dust removal device for thermal desorption exhaust
  • High-temperature dust removal device for thermal desorption exhaust
  • High-temperature dust removal device for thermal desorption exhaust

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Embodiment Construction

[0019] Such as figure 1 As shown, a thermal desorption tail gas high-temperature dust removal device includes a high-temperature cyclone dust collector 1 , a high-temperature bag-type pulse dust collector 3 , and a high-temperature-resistant gas pipeline 2 .

[0020] Such as figure 2 As shown, the high temperature cyclone dust collector 1 includes a first ash collecting hopper 4, a first ash unloading valve 5, a first ash falling chamber 6, a first bracket 7, a first separation chamber 8 and an exhaust core pipe 9; A bracket 7 is installed on both sides of the first separation chamber 8, the first separation chamber 8, the first ash chamber 6, the first ash unloading valve 5, and the first ash collecting hopper 4 are connected sequentially from top to bottom, and the exhaust core pipe 9 is installed on the top of the first separation chamber 8, the top of the exhaust core pipe 9 has a first air outlet 11, and the top of the side wall of the first separation chamber 8 has a f...

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Abstract

The invention discloses a high-temperature dust removal device for thermal desorption exhaust. The device comprises a high-temperature cyclone dust collector, a high-temperature bag type pulse dust collector and a high-temperature resistant gas pipeline, wherein high-temperature desorption exhaust is subjected to primary dust removal through the high-temperature cyclone dust collector, and enters the high-temperature bag type pulse dust collector through the high-temperature resistant gas pipeline to be subjected to secondary dust removal. The dust removal rate of the thermal desorption exhaust subjected to two stages of high-temperature dust removal can reach over 99%, and the device can be used for removing solid granules with the size of greater than 0.2 micron in the desorption exhaust.

Description

technical field [0001] The invention relates to a high-temperature dedusting device for thermal desorption tail gas. Background technique [0002] The thermal desorption treatment technology of polluted soil is the process of heating the polluted soil to a high enough temperature and keeping it for a period of time by means of direct or indirect heat exchange, so that the pollutants can be volatilized and separated from the polluted soil. The desorption tail gas generated during the thermal desorption treatment process contains solid particles, gaseous pollutants and water, and has the characteristics of high temperature, high water content and high dust content, and needs to be treated to meet relevant emission standards. The treatment method of desorption tail gas generally adopts wet dust removal or ordinary bag dust removal, and then cooling. The above treatment methods have the following problems: the dedusting effect of desorption tail gas is poor; the concentration o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D50/00B01D45/16B01D46/02
Inventor 张文辉胡清唐一张鹤清万德山熊杰高菁阳谢丹
Owner 中节能大地环境修复有限公司
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