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System for treating boiler flue gas and working method thereof

A technology for boiler flue gas and flue gas, applied in separation methods, chemical instruments and methods, gas treatment, etc., can solve problems such as pollution and violation of pollution control

Inactive Publication Date: 2017-09-22
傅国琳
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the highest denitrification rate can only reach 80%, or even lower, and the raw materials such as catalysts and ammonia used in the reaction process may cause new pollution and bring negative effects, which violates the principle of pollution control

Method used

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  • System for treating boiler flue gas and working method thereof
  • System for treating boiler flue gas and working method thereof
  • System for treating boiler flue gas and working method thereof

Examples

Experimental program
Comparison scheme
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Embodiment

[0120] Embodiment: a kind of system of controlling boiler flue gas (see Figure 1 to Figure 2 ), which includes induced draft fan, bag dust removal device, booster fan, desulfurization tank 3, photolysis catalytic system 5, denitrification tank 6, ozone treatment escape system 31, chemical reagent A dosing tank 14, chemical reagent B dosing tank 11 , chemical reagent C dosing tank 12, chemical reagent D dosing tank 16, metering pump 9, desulfurization tank collection tank 13, denitrification tank collection tank 15;

[0121] The boiler flue gas enters the bag filter through the induced draft fan, and the output end of the bag filter is connected to the input end of the booster fan 2 through the flue gas inlet 1, and the output end of the booster fan 2 is connected to the input end of the desulfurization tank 3, and the flue gas The booster fan 2 enters the desulfurization tank 3, and the flue gas enters the tank and the absorption liquid containing Fenton's reagent in the tank...

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Abstract

Disclosed is a system for treating boiler flue gas. The system for treating boiler flue gas is characterized in that the system comprises a desulfurization system and a denitration system; the flue gas input end of the desulfurization system is connected with the output end of a flue gas discharge device, and the flue gas output end of the desulfurization system is connected with the flue gas input end of the denitration system; the denitration system comprises an ozone escaping treatment system, a photocatalytic system and a denitrification tank; after the flue gas passes through the desulfurization system, before entering the denitrification tank, the flue gas is mixed with substances produced by the photocatalytic system, and the flue gas and the substances enter the denitrification tank together; the ozone escaping treatment system is arranged at the flue gas output end of the denitration system; purified gas is discharged from a purified flue gas outlet after the ozone escaping treatment system. The system for treating the boiler flue gas has the advantages that by the adoption of the system, the boiler flue gas can be effectively treated, sulphur dioxide can be changed into sulfuric acid, nitrogen oxides are changed into nitric acid for recycling, and therefore the recycling benefits of the system far exceed the operation cost of equipment, and users can gain more profits.

Description

[0001] (1) Technical field: the present invention relates to a system and working method thereof for treating boiler flue gas, especially a system and working method thereof for controlling flue gas discharge of coal-fired boilers, gas-fired boilers, oil-fired boilers and sintering machines. (2) Technical background: [0002] Under the situation of China's rapid economic growth and the rapid development of industrial enterprises, the demand for energy is also rising sharply. Taking coal resources as an example, the annual growth rate of coal demand since the reform and opening up is about 8-12%. Although the development and application of various clean energy sources has attracted widespread attention, in the next few decades, coal, as a low-cost and convenient energy source, will still be the main energy source in China and cannot be completely replaced by other clean energy sources. The most direct environmental problem brought about by the use of various coal-fired, gas-fire...

Claims

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Application Information

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IPC IPC(8): B01D53/86B01D53/50B01D53/78B01D53/56
CPCB01D53/56B01D53/78B01D53/8609B01D2251/104B01D2251/106B01D2259/804B01D2258/0283
Inventor 傅国琳拉胡尔苟帕拉栾昕
Owner 傅国琳
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