CN205627587U - Contain nitrogen oxide vent gas treatment system in - Google Patents
Contain nitrogen oxide vent gas treatment system in Download PDFInfo
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- CN205627587U CN205627587U CN201620281547.8U CN201620281547U CN205627587U CN 205627587 U CN205627587 U CN 205627587U CN 201620281547 U CN201620281547 U CN 201620281547U CN 205627587 U CN205627587 U CN 205627587U
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Abstract
The utility model provides a contain nitrogen oxide vent gas treatment system in, including the parallelly connected oxidation reaction barrel who sets up of a plurality of, 1 number the tower of absorb the remnant air, 2 number the tower of absorb the remnant air, 3 number the tower of absorb the remnant air and heat exchange tower, every oxidation reaction barrel top sets up no. 1 the tower of absorb the remnant air of tail gas inlet pipeline connection and advances bottom waste gas import, 1 number the tower of absorb the remnant air, 2 number the tower of absorb the remnant air, 3 number the tower of absorb the remnant air all is provided with the inlet channel, 1 no. 2 nearly bottom of the tower of absorb the remnant air air inlets of pipe connection are passed through to number the tower of absorb the remnant air top gas outlet, 2 no. 3 nearly bottom of the tower of absorb the remnant air air inlets of pipe connection are passed through to number the tower of absorb the remnant air top gas outlet, 3 number the tower of absorb the remnant air top gas outlet is connected and is discharged the pipeline, 2 number the tower of absorb the remnant air and no. 3 the tower of absorb the remnant air bottoms are provided with to be followed annular spraying and drenches the pipeline, it drenches the mouth that sprays on no. 2 the tower of absorb the remnant air of pipe connection and no. 3 the tower of absorb the remnant air tops to follow annular spraying, it drenches and is provided with the circulating pump on the pipeline to follow annular spraying.
Description
Technical field
The present invention relates to the absorption technique of a kind of nitrogen oxides.
Background technology
Nitrogen oxides is only by nitrogen, two kinds of elementary composition compounds of oxygen, including multiple compounds, common are nitric oxide, nitrogen dioxide, laughing gas, dinitrogen pentoxide etc., and they are common atmosphere pollutions, importantly nitric oxide and nitrogen dioxide.
The processing method of nitrogen oxides has reducing process, plasma activation, biochemical process, absorption method and liquid absorption method etc..Liquid absorption method is the nitrogen oxides absorbing in waste gas with water or acid, alkali, the aqueous solution of salt, makes the method that waste gas is purified.Therefore can be divided into by the kind of absorbent: water absorption method, acid absorption process, Alkali absorption method, oxide absorption process, absorption-reducing process and liquid phase combined techniques etc..Owing to nitrogen oxides can be recovered as nitrite or nitrate product by alkali absorption method, there is certain economic benefit, and technological process and equipment are the most fairly simple, mature technical route, it is widely used in the improvement of nitrogen oxides in industrial waste gas, but it is the highest that the major defect of the method is technical merit, and purification efficiency is low, and clean-up effect is bad.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, it is provided that a kind of reusable edible, tail gas waste heat is reclaimed, is substantially reduced nitrogen-containing oxide exhaust treatment system and the processing method thereof of energy consumption and water consumption.
nullFor realizing the object of the invention，Offer techniques below scheme: a kind of nitrogen-containing oxide exhaust treatment system，It is characterized in that including the oxidation reaction bucket that several are arranged in parallel、No. 1 tail gas absorber、No. 2 tail gas absorbers、No. 3 tail gas absorbers and heat exchange tower，Each oxidation reaction bucket top arranges tail gas admission line No. 1 tail gas absorber of connection and enters bottom exhaust gas inlet，No. 1 tail gas absorber、No. 2 tail gas absorbers、No. 3 tail gas absorbers are provided with inlet channel，Gas outlet, No. 1 tail gas absorber top connects No. 2 tail gas absorber nearly bottom air inlets by pipeline，Gas outlet, No. 2 tail gas absorber tops connects No. 3 tail gas absorber nearly bottom air inlets by pipeline，Gas outlet, No. 3 tail gas absorber tops connects discharge tube，No. 2 tail gas absorbers and No. 3 tail gas absorber bottoms are provided with circulated sprinkling pipeline，Circulated sprinkling pipeline connects No. 2 tail gas absorbers and the mouth spray on No. 3 tail gas absorber tops，It is provided with circulating pump on circulated sprinkling pipeline，Described No. 1 tail gas absorber bottom outlet arranges No. 1 spray piping and connects heat exchange tower top mouth spray，It is provided with No. 2 spray pipings on No. 1 spray piping and connects No. 1 tail gas absorber top mouth spray，No. 2 spray pipings of outlet connection at the bottom of heat exchange tower tower，The nearly bottom of heat exchange tower is provided with air intake duct and steam inlet duct，Heat exchange tower top air vent is connected in parallel several oxidation reaction buckets by discharge duct，Two compression fans it have been arranged in parallel on discharge duct.
No. 1, be provided with circulating pump on No. 2 spray pipings.
No. 1 tail gas absorber and heat exchange tower are provided with temperature sensor, and temperature sensor is arranged in tower and tower top.
No. 1 tail gas absorber, No. 2 tail gas absorbers, No. 3 tail gas absorbers are provided with two-layer dry load.
It is provided with air-introduced machine on tail gas admission line.
nullFor realizing the object of the invention，Provide the processing method of a kind of nitrogen-containing oxide exhaust treatment system，It is characterized in that the tail gas of the 80 DEG C of nitrogen-containing oxides discharged on oxidation reaction bucket top sequentially enters No. 1 tail gas absorber by tail gas admission line、No. 2 tail gas absorbers、No. 3 tail gas absorbers carry out qualified discharge after heat exchange absorption，No. 1 tail gas absorber bottom outlet is circulated spray by No. 1 spray piping and No. 2 spray pipings to No. 1 tail gas absorber and heat exchange tower，Heat exchange tower bottom outlet is circulated spray by No. 2 spray pipings to No. 1 tail gas absorber，Gas outlet, heat exchange tower top enters oxidation reaction bucket by discharge duct and carries out secondary temperature elevation，By compression fan, pressure is adjusted to 0.15MPa，The temperature of the mixed gas controlling air intake duct and steam inlet duct entrance air and steam is 130 DEG C.
As preferably, the temperature sensor arranged by No. 1 tail gas absorber and heat exchange tower carries out temperature control.
The method have the benefit that the absorption technique of nitrogen oxides is simple, equipment investment is little, and purification efficiency is high, and good purification, without side reaction, does not results in secondary pollution.
Accompanying drawing explanation
Fig. 1 is the system schematic of the present invention.
Detailed description of the invention
nullEmbodiment 1: a kind of nitrogen-containing oxide exhaust treatment system，Including 4 oxidation reaction buckets 1 being arranged in parallel、No. 1 tail gas absorber 2、No. 2 tail gas absorbers 3、No. 3 tail gas absorbers 4 and heat exchange tower 5，Each oxidation reaction bucket 1 top arranges tail gas admission line 6 and connects No. 1 tail gas absorber 2 and enter bottom exhaust gas inlet，No. 1 tail gas absorber 2、No. 2 tail gas absorbers 3、No. 3 tail gas absorbers 4 are provided with inlet channel 7，Gas outlet, No. 1 tail gas absorber 2 top connects No. 2 tail gas absorber 3 nearly bottom air inlets by pipeline，Gas outlet, No. 2 tail gas absorber 3 tops connects No. 3 tail gas absorber 4 nearly bottom air inlets by pipeline，Gas outlet, No. 3 tail gas absorber 4 tops connects discharge tube 8，No. 2 tail gas absorbers 3 and No. 3 tail gas absorber 4 bottoms are provided with circulated sprinkling pipeline 9，Circulated sprinkling pipeline 9 connects No. 2 tail gas absorbers 3 and the mouth spray on No. 3 tail gas absorber 4 tops，Circulating pump 10 it is provided with on circulated sprinkling pipeline 9，Described No. 1 tail gas absorber 2 bottom outlet arranges No. 1 spray piping 11 and connects heat exchange tower 5 top mouth spray，It is provided with No. 2 spray pipings 12 on No. 1 spray piping 11 and connects No. 1 tail gas absorber 2 top mouth spray，No. 2 spray pipings 12 of outlet connection at the bottom of heat exchange tower 5 tower，The nearly bottom of heat exchange tower 5 is provided with air intake duct 5.1 and steam inlet duct 5.2，Heat exchange tower 5 top air vent is connected in parallel 4 oxidation reaction buckets 1 by discharge duct 13，Two compression fans 14 it have been arranged in parallel on discharge duct 13.No. 1, be provided with circulating pump 10 on No. 2 spray pipings (11,12).No. 1 tail gas absorber 2 and heat exchange tower 5 are provided with temperature sensor 15, and temperature sensor 15 is arranged in tower and tower top.No. 1 tail gas absorber 3, No. 3 tail gas absorbers 4 of 2, No. 2 tail gas absorbers are provided with two-layer dry load.Air-introduced machine 16 it is provided with on tail gas admission line 6.
nullEmbodiment 2: the processing method of a kind of nitrogen-containing oxide exhaust treatment system，The tail gas of 80 DEG C of nitrogen-containing oxides that oxidation reaction bucket top is discharged sequentially enters No. 1 tail gas absorber by tail gas admission line、No. 2 tail gas absorbers、No. 3 tail gas absorbers carry out qualified discharge after heat exchange absorption，No. 1 tail gas absorber bottom outlet is circulated spray by No. 1 spray piping and No. 2 spray pipings to No. 1 tail gas absorber and heat exchange tower，Heat exchange tower bottom outlet is circulated spray by No. 2 spray pipings to No. 1 tail gas absorber，Gas outlet, heat exchange tower top enters oxidation reaction bucket by discharge duct and carries out secondary temperature elevation，By compression fan, pressure is adjusted to 0.15MPa，The temperature of the mixed gas controlling air intake duct and steam inlet duct entrance air and steam is 130 DEG C，The temperature sensor arranged by No. 1 tail gas absorber and heat exchange tower carries out temperature control.No. 1 tail gas absorber is absorbed by water, and No. 2 and No. 3 tail gas absorbers are absorbed by alkaline absorption solution, and alkaline absorption solution is sodium carbonate or sodium hydroxide solution.
Claims (5)
- null1. a nitrogen-containing oxide exhaust treatment system，It is characterized in that including the oxidation reaction bucket that several are arranged in parallel、No. 1 tail gas absorber、No. 2 tail gas absorbers、No. 3 tail gas absorbers and heat exchange tower，Each oxidation reaction bucket top arranges tail gas admission line No. 1 tail gas absorber of connection and enters bottom exhaust gas inlet，No. 1 tail gas absorber、No. 2 tail gas absorbers、No. 3 tail gas absorbers are provided with inlet channel，Gas outlet, No. 1 tail gas absorber top connects No. 2 tail gas absorber nearly bottom air inlets by pipeline，Gas outlet, No. 2 tail gas absorber tops connects No. 3 tail gas absorber nearly bottom air inlets by pipeline，Gas outlet, No. 3 tail gas absorber tops connects discharge tube，No. 2 tail gas absorbers and No. 3 tail gas absorber bottoms are provided with circulated sprinkling pipeline，Circulated sprinkling pipeline connects No. 2 tail gas absorbers and the mouth spray on No. 3 tail gas absorber tops，It is provided with circulating pump on circulated sprinkling pipeline，Described No. 1 tail gas absorber bottom outlet arranges No. 1 spray piping and connects heat exchange tower top mouth spray，It is provided with No. 2 spray pipings on No. 1 spray piping and connects No. 1 tail gas absorber top mouth spray，No. 2 spray pipings of outlet connection at the bottom of heat exchange tower tower，The nearly bottom of heat exchange tower is provided with air intake duct and steam inlet duct，Heat exchange tower top air vent is connected in parallel several oxidation reaction buckets by discharge duct，Two compression fans it have been arranged in parallel on discharge duct.
- A kind of nitrogen-containing oxide exhaust treatment system the most according to claim 1, it is characterised in that No. 1, be provided with circulating pump on No. 2 spray pipings.
- A kind of nitrogen-containing oxide exhaust treatment system the most according to claim 1, it is characterised in that No. 1 tail gas absorber and heat exchange tower are provided with temperature sensor, and temperature sensor is arranged in tower and tower top.
- A kind of nitrogen-containing oxide exhaust treatment system the most according to claim 1, it is characterised in that No. 1 tail gas absorber, No. 2 tail gas absorbers, No. 3 tail gas absorbers are provided with two-layer dry load.
- A kind of nitrogen-containing oxide exhaust treatment system the most according to claim 1, it is characterised in that be provided with air-introduced machine on tail gas admission line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620281547.8U CN205627587U (en) | 2016-04-07 | 2016-04-07 | Contain nitrogen oxide vent gas treatment system in |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620281547.8U CN205627587U (en) | 2016-04-07 | 2016-04-07 | Contain nitrogen oxide vent gas treatment system in |
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| CN205627587U true CN205627587U (en) | 2016-10-12 |
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| CN201620281547.8U Active CN205627587U (en) | 2016-04-07 | 2016-04-07 | Contain nitrogen oxide vent gas treatment system in |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105854556A (en) * | 2016-04-07 | 2016-08-17 | 江苏宇星工贸有限公司 | Treating system for exhaust gas containing nitric oxide and treating method thereof |
| CN106512666A (en) * | 2016-12-28 | 2017-03-22 | 浙江华源颜料股份有限公司 | Oxidizing barrel centralized tail gas treatment system |
| CN106731519A (en) * | 2016-12-28 | 2017-05-31 | 浙江华源颜料股份有限公司 | A kind of hydrogen governing system of sulphur Asia reaction container |
-
2016
- 2016-04-07 CN CN201620281547.8U patent/CN205627587U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105854556A (en) * | 2016-04-07 | 2016-08-17 | 江苏宇星工贸有限公司 | Treating system for exhaust gas containing nitric oxide and treating method thereof |
| CN105854556B (en) * | 2016-04-07 | 2018-12-28 | 江苏宇星工贸有限公司 | A kind of nitrogen-containing oxide exhaust treatment system and its processing method |
| CN106512666A (en) * | 2016-12-28 | 2017-03-22 | 浙江华源颜料股份有限公司 | Oxidizing barrel centralized tail gas treatment system |
| CN106731519A (en) * | 2016-12-28 | 2017-05-31 | 浙江华源颜料股份有限公司 | A kind of hydrogen governing system of sulphur Asia reaction container |
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Address after: 214200 Yuncun village, Qiting street, Yixing City, Wuxi City, Jiangsu Province Patentee after: Jiangsu Yuxing Technology Co.,Ltd. Address before: Qiting Jie Lu Cun, Yixing City, Wuxi City, Jiangsu Province Patentee before: JIANGSU YUXING INDUSTRY AND TRADE Co.,Ltd. |