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Smoke processing technology

A flue gas treatment and process technology, applied to the separation of dispersed particles, chemical instruments and methods, separation methods, etc., can solve the problems of high cost of flue gas treatment, serious pollution, and low processing efficiency, and achieve resource consumption and process saving , a wide range of effects

Inactive Publication Date: 2010-08-11
上海蓝鸟环境科技发展有限公司
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Problems solved by technology

[0004] The purpose of the present invention is to provide a flue gas treatment process to solve the problems of high flue gas treatment cost, serious pollution and low treatment efficiency in the existing flue gas treatment technology

Method used

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Embodiment 1

[0021] see figure 1 , the solid arrows in the figure represent the main process line; the dotted arrows represent the drug flow line. The present invention mainly is divided into following six technical processes:

[0022] (1) Rapid cooling and cooling:

[0023] First, after the flue gas enters the process of 101, the flue gas enters the quenching neutralization tower 102, and the quenching neutralization tower 102 uses the evaporation of sprayed water in the high-temperature airflow to achieve the purpose of cooling the airflow, reducing the temperature of the furnace gas from 500-600°C to Below 200°C. In order to rapidly cool the high-temperature airflow, it is first necessary to ensure that the airflow is evenly distributed in the cooler, especially the dusty airflow. For this reason, the present invention adopts unique intake distribution device.

[0024] The water spray gun is designed to be made of high-grade stainless steel with high temperature resistance, wear res...

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Abstract

The invention discloses smoke processing technology, which belongs to the technical filed of environment protection. The smoke processing technology at least comprises the following steps: a. smoke cooling: introducing smoke into a quench tower to be cooled; b. half-dry deacidification: introducing cooled smoke into an absorber provided with an alkaline material injection device; c. dust removal: introducing the smoke processed by the second step into a bag type dust remover; d. denitration: introducing the smoke processed by the third step into a denitration device provided with an ammonia spraying device; e. wet type deacidification: introducing the smoke processed by the fourth step into a wet type absorption tower provided with an alkaline liquid spraying device, wherein the alkaline material in the second step is a mixture of active slaked lime and active carbon. The invention has high purification efficiency on acid gas, saves the technical area, and saves the cost. Proper adjustment can also be carried out according to the actual smoke ingredients and the technical requirements, the flexibility is high, and the applicable range is wide.

Description

Technical field: [0001] The invention belongs to the technical field of environmental protection and relates to a treatment process of industrial waste, in particular to a flue gas treatment process. Background technique: [0002] The flue gas produced by solid waste incineration contains particulate matter, acid gases (hydrogen chloride, sulfur oxides, hydrogen fluoride, nitrogen oxides), heavy metals, dioxins and other pollutants. The existing technology is to use dry, semi-dry and wet treatment processes and equipment to treat flue gas. These processes usually include flue gas cooling, dry, semi-dry or wet deacidification, dust removal, denitrification, etc. step, in order to better deal with the acidic components in the flue gas, people use lye as a coolant in the cooling step of the flue gas, which can reduce the deacidification pressure of the subsequent deacidification step and improve the deacidification efficiency of the flue gas. In actual application, it is found...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/78
Inventor 钱建中
Owner 上海蓝鸟环境科技发展有限公司
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