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Process for carrying out denitration on incineration flue gas generated by printing and dyeing sludge

A technology for incinerating flue gas and printing and dyeing sludge, which is applied in the field of printing and dyeing sludge incineration and denitrification technology, achieving the effects of simple equipment, convenient project implementation, and reduced construction volume

Inactive Publication Date: 2014-04-02
HUAFANG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The second is that NOx diffuses in the air or dissolves into the ground surface and water, eventually forming acid rain, which will cause serious damage to large areas of trees and crops, even large areas of forests will die, and crop production will be severely reduced.
Fifth, NOx is rich in nutrients and can cause harm to waters

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Printing and dyeing sludge incineration flue gas denitrification process, the process includes the following steps:

[0026] The incineration flue gas first enters the ammonia water storage tank, and is sent to the dilution system by the conveying and control system. At the same time, the demineralized water enters the water tank, and is conveyed to the dilution system by the conveying and control system. The materials in the dilution system are sent to the distribution and control system, and then passed through the spray The system is sent to the furnace, and the distribution and control system is sent to the spray system and then sent to the furnace, and is monitored by the flue gas online monitoring system.

[0027] The combustion temperature of the above-mentioned furnace is 850°C to 950°C.

[0028] Ammonia or urea is sprayed into the furnace during the above furnace combustion process.

[0029] The flue gas after the combustion of the above-mentioned furnace is d...

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Abstract

The invention belongs to the technical field of waste gas treatment and particularly relates to a process for carrying out denitration on incineration flue gas generated by printing and dyeing sludge. The process for carrying out denitration on the incineration flue gas generated by the printing and dyeing sludge is characterized by comprising the following steps that: firstly, the incineration flue gas enters an ammonia water storage tank and is fed into a diluting system by a conveying and control system; simultaneously, demineralized water enters a water tank and is conveyed to the diluting system by the conveying and control system; materials in the diluting system are sent to a distribution and control system and then are sent to a hearth by a spraying system; and in the process of conveying the materials to the hearth from the distribution and control system through the spraying system, a flue gas online monitoring system carries out monitoring. The process has the benefits of simplicity for operation, reliability for operation and convenience for management; and wastewater in the process can be recycled after being treated.

Description

technical field [0001] The invention belongs to the technical field of waste gas treatment, and in particular relates to a printing and dyeing sludge incineration and denitrification process. Background technique [0002] The harm of NOx [0003] Exhaust gas from power plants contains many harmful substances in the form of gases and solids, nitrogen oxides are also one of them. Nitrogen oxides are the general term for gaseous compounds formed by the combination of nitrogen and oxygen (referred to as NOx), which includes NO, NO 2 , N 2 O and other 5 kinds of gases, but the main component of NOx in the flue gas discharged from general power plants is NO, accounting for more than 90% of the amount of NOx. [0004] The harm of NOx mainly has five aspects, one is the direct damage to the human body. For humans, NOx is a poisonous gas. When the NOx content in the air exceeds the limit value, it will start to cause harm to the human body, which is similar to SOx. The second i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/79B01D53/56
Inventor 李春光罗维新贾洪斌王绪山路恩刚刘宝图赵成伟赵海青王海花
Owner HUAFANG
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