Method and device for treating nitrochlorobenzene waste gas

A technology of nitrochlorobenzene and exhaust gas, which is applied in the direction of separation methods, chemical instruments and methods, steam condensation, etc., can solve the problems of secondary pollution, easy solidification of nitrochlorobenzene, pollution, etc., and achieve the effect of high removal rate

Inactive Publication Date: 2011-10-12
浙江省环境工程有限公司
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  • Abstract
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  • Claims
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Problems solved by technology

Using the combustion method to treat nitrochlorobenzene waste gas, the nitrogen oxides and chlorine oxides produced will cause secondary pollution; nitrochlorobenzene is easy to solidify at room temperature, and the adsorption method will quickly cover the surface of the adsorbent. ,

Method used

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  • Method and device for treating nitrochlorobenzene waste gas
  • Method and device for treating nitrochlorobenzene waste gas
  • Method and device for treating nitrochlorobenzene waste gas

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Example Embodiment

[0034] In the following, the technical solution of the present utility model will be further described in detail through the embodiments and the accompanying drawings.

[0035] Such as figure 1 The shown nitrochlorobenzene waste gas treatment device includes a gas collection system 1, a cooling system 2, a spray purification system 3, a solid-liquid separation system, and an induced air system 6. The gas gathering system 1 is composed of multiple sets of suction hoods, and different types of material waste gas are sent here separately through the tail gas pipe to prevent the tail gas from channeling to each other, and to pre-cool the waste gas while collecting. Duct as figure 2 As shown, it is equipped with a steam nozzle 11 and a steam pipe 12 inside the air pipe, which is used to dredge the material after the pipe is blocked by material solidification; the cooling system 2 consists of two sets of fin condensers, one for one and one for use. Finned condenser such as image 3 As...

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Abstract

The invention discloses a method and a device for treating nitrochlorobenzene waste gas. The method is characterized by comprising the following steps of: removing dust particles in discharged drying waste gas by virtue of a dust remover, then removing water vapour carried by the waste gas by condensation, heating the waste gas by virtue of a heater, and using the waste gas as a hot wind source of a drying system; the device comprises a gas gathering system, a cooling system, a spraying purification system, a solid-liquid separation system and a draught system, wherein the systems are sequentially connected by virtue of pipelines; the gas gathering system is composed of multiple draught hoods connected in parallel, the cooling system adopts a fin-type water-cooling heat exchange way, the spraying and purifying system comprises a spraying tower, and the solid-liquid separation system comprises a solid-liquid separation water tank. In the invention, multiple cooling heat exchange methods are combined, nitrochlorobenzene waste gas is effectively treated, the removal rate is higher, and no secondary pollution is produced.

Description

[0001] technical field [0002] The invention relates to a waste gas treatment technology, in particular to a method and device for treating nitrochlorobenzene waste gas. Background technique [0003] Nitrochlorobenzene is an important chemical raw material, which is composed of three isomers: p-nitrochlorobenzene, o-nitrochlorobenzene and m-nitrochlorobenzene. The waste gas of nitrochlorobenzene contains p-, o- and m-nitro Chlorobenzene vapor and sublimates, water vapor and air. The melting point of pure p-nitrochlorobenzene is 83.5°C; the melting point of pure o-nitrochlorobenzene is 32.5°C; the melting point of pure m-nitrochlorobenzene is 46°C. The direct discharge of nitrochlorobenzene waste gas will cause great pollution to the atmospheric environment, cause damage to the health of operators, and affect the living environment of surrounding residents. [0004] At present, the purification methods commonly used for organic waste gas include combustion method, adsorpti...

Claims

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Application Information

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IPC IPC(8): B01D5/00C07C205/12C07C201/16
Inventor 邵振华任翔宇滕富华顾震宇金奇超
Owner 浙江省环境工程有限公司
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