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Multidirectional spraying SNCR single-layer SCR denitration system

A denitration, single-layer technology, applied in the field of denitration systems, can solve the problems of low operating cost, high investment cost, low destocking efficiency, etc., and achieve the effect of low operating cost, low investment cost and resource saving.

Inactive Publication Date: 2017-01-04
HEFEI HEYI ENVIRONMENTAL PROTECTION TECH ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to overcome the disadvantages of low denitrification efficiency, high operating cost and very expensive investment cost of the existing denitrification device, the technical problem to be solved by the present invention is to provide a denitrification device with high denitrification efficiency, low operating cost and relatively low investment cost. Add single-layer SCR denitrification system to injection SNCR

Method used

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  • Multidirectional spraying SNCR single-layer SCR denitration system
  • Multidirectional spraying SNCR single-layer SCR denitration system
  • Multidirectional spraying SNCR single-layer SCR denitration system

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Experimental program
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Effect test

Embodiment 1

[0039] A multi-directional injection SNCR plus single-layer SCR denitrification system, such as Figure 1-7 As shown, it includes a bottom plate 1, a dilution water tank 2, a first liquid outlet pipe 3, a water pump 4, a valve 5, an ammonia water tank 6, a second liquid outlet pipe 7, a second hard pipe 8, a spring 9, and an SCR treatment tank 10 , smoke exhaust pipe 11, fixed plate 12, guide rod 13, support rod 14, guide sleeve 15, liquid inlet pipe 16, air inlet pipe 17, first one-way valve 18, piston 19, spray gun 20, first hard pipe 21 , cylinder block 22, wedge block 23, contact wheel 24, connecting rod 25, cylinder 26, push plate 27, cavity 29 and boiler 30, base plate 1 is provided with dilution water tank 2 and ammonia water tank 6, and dilution water tank 2 is located in ammonia water tank 6 On the left side, there is a water pump 4 on the right side of the top of the dilution water tank 2, and the left and right sides of the water pump 4 are respectively connected wi...

Embodiment 2

[0041] A multi-directional injection SNCR plus single-layer SCR denitrification system, such as Figure 1-7 As shown, it includes a bottom plate 1, a dilution water tank 2, a first liquid outlet pipe 3, a water pump 4, a valve 5, an ammonia water tank 6, a second liquid outlet pipe 7, a second hard pipe 8, a spring 9, and an SCR treatment tank 10 , smoke exhaust pipe 11, fixed plate 12, guide rod 13, support rod 14, guide sleeve 15, liquid inlet pipe 16, air inlet pipe 17, first one-way valve 18, piston 19, spray gun 20, first hard pipe 21 , cylinder block 22, wedge block 23, contact wheel 24, connecting rod 25, cylinder 26, push plate 27, cavity 29 and boiler 30, base plate 1 is provided with dilution water tank 2 and ammonia water tank 6, and dilution water tank 2 is located in ammonia water tank 6 On the left side, there is a water pump 4 on the right side of the top of the dilution water tank 2, and the left and right sides of the water pump 4 are respectively connected wi...

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Abstract

The invention relates to a denitration system and especially relates to a multidirectional spraying SNCR single-layer SCR denitration system. The technical problem to be solved by the invention is to provide the multidirectional spraying SNCR single-layer SCR denitration system with high denitration efficiency, low running cost and relative low investment cost. For solving the technical problem, the multidirectional spraying SNCR single-layer SCR denitration system provided by the invention comprises a base plate, a diluting water tank, a first liquid draining pipe, a water pump, a valve, an ammonium tank, a second liquid draining pipe, a second hard pipe, a spring, a SCR treating tank and a smoke draining pipe, wherein the diluting water tank and the ammonium tank are arranged on the base plate; the diluting water tank is located on the left side of the ammonium tank; a water pump is arranged on the right side at the top of the diluting water tank. According to the invention, multidirectional spraying and single layer SCR denitration treatment are utilized to adjust the smoke flow according to different temperatures, so as to prevent the danger resulted from the exhaust pipe blocked by excessive smoke.

Description

technical field [0001] The invention relates to a denitrification system, in particular to a multi-directional injection SNCR plus single-layer SCR denitrification system. Background technique [0002] The process of removing nitrogen oxides from combustion flue gas and the importance of preventing environmental pollution have been sharply raised as worldwide problems. 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. [0003] To adapt to increasingly stringent environmental protection requirements, implement GB13223-2011 "Emission Standards of Air Pollutants for Thermal Power Plants", and in today's very severe smog and air pollu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/90B01D53/56
CPCB01D53/8631B01D53/90B01D2251/206
Inventor 汪为忠
Owner HEFEI HEYI ENVIRONMENTAL PROTECTION TECH ENG