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Multi-tank easy-to-maintain denitration apparatus

An easy-to-maintain and denitrification technology, applied in the direction of dispersed particle separation, chemical instruments and methods, separation methods, etc., can solve problems such as unfavorable environmental protection and normal production, and achieve the effect of improving denitrification speed, reducing cost and speeding up processing speed

Inactive Publication Date: 2016-07-06
CHENGDU SHENGERJIA SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Since the catalyst in the sCr system is easily consumed or the catalytic effect is reduced and needs to be replaced or the reductant spray gun needs to be repaired, we need to stop production or let the exhaust gas be discharged directly to maintain the denitrification equipment, which is not conducive to environmental protection and normal production.

Method used

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  • Multi-tank easy-to-maintain denitration apparatus

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specific Embodiment 1

[0012] Specific embodiment one: as figure 1 As shown, the multi-tank easy-maintenance denitrification device of the present invention includes three branch denitrification tanks, branch tank A, branch tank B, and branch tank C. The smoke inlets 3 of the branch tanks A, B and C are connected to the same general smoke inlet 1 through pipes, and the outlets of the tanks A, B and C are connected to each other. The smoke outlet 7 is connected to the same general smoke outlet 9 through a pipeline. The shape and structure of the branch tank A, branch tank B and branch tank C are consistent. The structure of the branch tank includes: the smoke inlet port 3 of the branch tank, the reducing agent spray gun 4, Catalyst layer 5, branch tank smoke outlet 7, branch tank smoke inlet 3 and branch tank smoke outlet 7 are respectively located at the top and bottom of the branch tank, and the middle part of the branch tank is provided with a catalyst layer 5, and the thickness of the catalyst la...

specific Embodiment 2

[0013] Specific embodiment 2: The multi-tank type easy-maintenance denitrification device of the present invention includes two branched denitrification tanks, branch tank A and branch tank B respectively. The 3 smoke inlets and the 7 smoke outlets of the tanks A and B are respectively equipped with a tank inlet valve 2 and a tank outlet valve 8, and the smoke outlet 7 of the tank A is also There is a serial valve 6, and the smoke outlet 7 of the tank A is connected to the smoke inlet 3 of the tank B through the serial valve 6. When the serial valve 6 at the lower end of the tank A is closed, And when the smoke inlet 3 and the smoke outlet 7 of the tank A and the tank B are opened, the tank A and the tank B are in a parallel relationship. This parallel relationship can speed up the gas processing speed of the denitrification device. Quickly carry out denitrification treatment to increase the treatment capacity of waste gas.

[0014] The multi-tank type easy-maintenance denitr...

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Abstract

The present invention discloses a multi-tank easy-to-maintain denitration apparatus comprising at least two branch denitrification tanks, each branch denitrification tank includes a branch tank smoke inlet, a branch tank smoke outlet, a reducing agent spray gun and a catalyst layer, a total smoke inlet is commonly used by the branch denitrification tanks, a total smoke outlet is commonly used by the branch denitrification tanks, and valves are arranged respectively at the positions of the branch tank smoke inlets and the branch tank smoke outlets. Branch tank outlet valves and serial valves are arranged respectively at the positions of the branch tank smoke outlets. The position of the branch tank smoke outlet of the branch denitrification tank is connected with the position of the branch tank smoke inlet of other branch denitrification tank by the serial valve. The smoke outlets of the branch denitrification tanks are connected with the total smoke outlet by the branch tank outlet valves, and the smoke inlets of the branch denitrification tanks are connected with the total smoke inlet by the branch tank outlet valves. Beneficial effects are as follows: the flue gas processing speed of the denitration apparatus can be accelerated, the denitration speed is improved, and the multi-tank easy-to-maintain denitration apparatus has a simple structure and easy maintenance effects and can reduce the cost of production.

Description

technical field [0001] The invention relates to a multi-tank denitrification device which is easy to maintain. Background technique [0002] The more mainstream processes in the world are divided into: SCR and SNCR. There is not much difference between these two processes except that the reaction temperature of SCR is lower than that of SNCR due to the use of catalyst in SCR. However, from the perspective of construction cost and operating cost, the investment of SCR is at least several times that of SNCR, or even More than 10 times. , SCR system is generally composed of ammonia storage system, ammonia and air mixing system, ammonia gas injection system, reactor system, economizer bypass, SCR bypass, detection and control system, etc. The liquid ammonia is sent from the liquid ammonia tank car to the liquid ammonia storage tank by the unloading compressor, and then evaporated into ammonia gas through the evaporation tank, then passes through the ammonia buffer tank, and th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/86B01D53/56
Inventor 薛彦旭
Owner CHENGDU SHENGERJIA SCI & TECH