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Industrial kiln exhaust gas recovery method

A tail gas recovery and kiln technology, applied in separation methods, chemical instruments and methods, agriculture, etc., can solve problems such as complex processes, unrecyclable products, and low processing efficiency, and achieve uncomplicated processes, reduced emissions, and high recovery efficiency high effect

Inactive Publication Date: 2018-12-21
宜宾恒旭窑炉科技开发有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims to provide a method for recovering industrial kiln tail gas to solve the problems of secondary pollution gas, complex process, low processing efficiency and non-recyclable products in the current industrial kiln tail gas treatment.

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Embodiment Construction

[0026] The method for recovering industrial kiln tail gas provided by the present invention will be described in detail below with reference to the accompanying drawings.

[0027] like figure 1 As shown, the method for recovering industrial kiln tail gas provided by the present invention includes the following steps: including step A, step B, and step C, and step A corresponds to figure 1 S1 in the figure, step B corresponds to S2 in the figure, step C corresponds to S3 in the figure, step A cools and dedusts the exhaust gas discharged from the kiln, which specifically includes steps:

[0028] 1) Pass the exhaust gas discharged from the industrial kiln into the dust collector; the dust collector adopts a wet dust collector;

[0029] 2) The exhaust gas discharged in step 1) is passed into the condenser for cooling.

[0030] By passing the exhaust gas discharged from the industrial kiln into the dust collector, it should be noted here that the temperature of the gas discharged...

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Abstract

The invention discloses an industrial kiln exhaust gas recovery method, comprising the following steps: step A. the exhaust gas is cooled and dedusted, specifically including: 1) pumping the exhaust gas discharged from the industrial kiln into a dust remover; 2) pumping the exhaust gas discharged from step 1) into a condenser for cooling; step B. desulfurization treatment on the exhaust gas is carried out, specifically including: 3) pumping the exhaust gas discharged from the step A into an ammonia water reaction tower; arranging an exhaust pipe in the upper part of the ammonia water reactiontower, arranging a symmetrical gas inlet pipe and a water inlet pipe in middle part, and arranging a solution discharge pipe in lower part; 4) pumping air into the ammonia water reaction tower; 5) draining the solution in the ammonia water reaction tower to a liquid storage tank; performing precipitation and crystallization om the solution in the liquid storage tank; step C. denitrification treatment on the desulfurized exhaust gas is carried out, specifically including: 6) pumping the gas discharged from the exhaust pipe in the step 3) into a catalytic reduction reaction tank; 7) pumping a denitration catalyst into the reduction reaction tank.

Description

technical field [0001] The invention relates to the technical field of environmental protection in kiln production, in particular to a method for recovering industrial kiln tail gas. Background technique [0002] Industrial kiln is a device that provides heat by burning fuel, so that the product can complete a certain temperature curve, atmosphere curve, pressure curve coupling processing equipment. With the development of production technology, although the heat utilization efficiency of the process kiln has improved, there is still insufficient combustion. And the generation of harmful exhaust gas, such as carbon dioxide, carbon disulfide, hydrogen sulfide, fluoride, nitrogen oxides, chlorine, hydrogen chloride, carbon monoxide, sulfuric acid (fog), lead, mercury, beryllium compounds, soot and production dust, these exhaust gases are discharged into the atmosphere to pollute Air pollution is not only harmful to human health, but also damages the ground crops and destroys t...

Claims

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Application Information

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IPC IPC(8): B01D53/75B01D53/56B01D53/50C01C1/24C05C3/00
CPCB01D53/75B01D53/50B01D53/56B01D2251/2062C01C1/24C05C3/00
Inventor 曹培均
Owner 宜宾恒旭窑炉科技开发有限公司
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