CN207755994U - WSA acid-making process ammonia still process ammonias enter SCR reactor pretreating devices - Google Patents
WSA acid-making process ammonia still process ammonias enter SCR reactor pretreating devices Download PDFInfo
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- CN207755994U CN207755994U CN201721712366.7U CN201721712366U CN207755994U CN 207755994 U CN207755994 U CN 207755994U CN 201721712366 U CN201721712366 U CN 201721712366U CN 207755994 U CN207755994 U CN 207755994U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Abstract
The utility model is related to WSA acid-making process equipment more particularly to WSA acid-making process ammonia still process ammonias to enter SCR reactor pretreating devices.Including dilution wind pipeline and ammonia still process purge pipe；Dilution wind pipeline is connect by pipeline with mixer after converging with ammonia still process purge pipe, and mixer is connected by pipeline with SCR reactors；Ammonia still process purge pipe includes main pipeline and the exhausting pipeline separated by main pipeline, Drainage pipe, nitrogen pipeline；Filter, flowmeter, regulating valve, the first quick-break valve, the second quick-break valve are equipped on main pipeline successively, Drainage pipe is equipped with water seal arrangement, control valve, quick-break valve, check-valves are equipped with successively on nitrogen pipeline；It dilutes wind pipeline and is equipped with combustion air fan, flowmeter, regulating valve, air heater successively.Equipment is provided for ammonia still process ammonia technique to support, be ensure that WSA acid-making process is safe and stable, efficient, is avoided liquefied ammonia risk of explosion, NOx removal efficiency reaches 98% or more, tail gas is made to reach environmental emission standard.
Description
Technical field
The utility model is related to WSA acid-making process equipment more particularly to a kind of WSA acid-making process ammonia still process ammonia to enter SCR
Reactor pretreating device.
Background technology
By SCR reactors it is that liquefied ammonia removes NOx in WSA acid-making process, since liquefied ammonia has corrosivity and readily volatilized,
So its chemical accident incidence is very high, and needs continuous replacement steel cylinder, enterprise implement difficulty is larger, there is very big safe disease
Suffer from, admittedly liquefied ammonia removing NOx steps can not be implemented, causes NOx that can not remove, tail gas is not up to standard.If being used in WSA acid-making process
Ammonia still process ammonia technology generations replace liquefied ammonia, existing device to exist following insufficient：First, no gas-liquid separation device, ammonia is aqueous big,
Pipeline liquid storage easily causes heavy corrosion in operational process to acid-producing apparatus；Second is that ammonia pipeline long-play, naphthalene and tar
Easily block pipeline；Third, temperature does not reach requirement before ammonia enters SCR reactors, cause ammonia with air mixture ratio up to not
To requirement, there are significant security risks.
Invention content
In order to overcome the above-mentioned deficiencies of the prior art, the utility model provides a kind of WSA acid-making process ammonia still process ammonia entrance
SCR reactor pretreating devices.Ammonia still process ammonia is handled it before entering SCR reactors, meets WSA acid-making process requirements.
In order to achieve the above object, the utility model is realized using following technical scheme：
A kind of WSA acid-making process ammonia still process ammonia enters SCR reactor pretreating devices, including dilution wind pipeline and ammonia still process it is net
Change pipeline；Dilution wind pipeline is connect by pipeline with mixer after converging with ammonia still process purge pipe, and mixer passes through pipeline and SCR
Reactor is connected；The ammonia still process purge pipe includes main pipeline and the exhausting pipeline separated by main pipeline, Drainage pipe, nitrogen
Pipeline；Filter, flowmeter, regulating valve, the first quick-break valve, the second quick-break valve, Drainage pipe are equipped on the main pipeline successively
It is equipped with water seal arrangement, control valve, third quick-break valve, check-valves are equipped with successively on nitrogen pipeline；The dilution wind pipeline is successively
Equipped with combustion air fan, flowmeter, regulating valve, air heater.
The exhausting pipeline is equipped with and sweeps steam valve.
The nitrogen pipeline imports main pipeline between the first quick-break valve and the second quick-break valve of main pipeline.
Compared with prior art, the utility model has the beneficial effects that：
1) the utility model is equipped with Drainage pipe and water seal arrangement, realizes gas-liquid separation, ensure that ammonia condensation water is smooth
Discharge；
2) the utility model is equipped with filter device, prevents line clogging；
3) the utility model is equipped with heater, and temperature, which reaches, before so that the gaseous mixture of ammonia and air is entered SCR reactors wants
It asks；
4) the utility model removes NOx techniques for liquefied ammonia for ammonia still process ammonia technology generations and provides equipment support, ensure that WSA
Acid-making process is safe and stable, efficient, avoids liquefied ammonia risk of explosion, and NOx removal efficiency reaches 98% or more, tail gas is made to reach
Environmental emission standard.
Description of the drawings
Fig. 1 is the utility model structural representation and process flow chart；
In figure：1- dilutes the 6- emptying of wind pipeline 2- ammonia still process purge pipe 3- mixer 4-SCR reactor 5- main pipelines
Pipeline 7- Drainage pipe 8- nitrogen pipeline 9- filter 10- flowmeter 11- regulating valves 12- the first quick-break valves 13- second
Quick-break valve 14- water seal arrangement 15- check-valves 16- air heaters 17- sweeps steam valve 18- control valve 19- third speed
Disconnected valve 20- combustion air fans
Specific implementation mode
Specific embodiment of the present utility model is described further below in conjunction with the accompanying drawings：
As shown in Figure 1, a kind of WSA acid-making process ammonia still process ammonia enters SCR reactor pretreating devices, including dilution air hose
Road 1 and ammonia still process purge pipe 2；Dilution wind pipeline 1 is connect after converging with ammonia still process purge pipe 2 with mixer 3, and mixer 3 passes through
Pipeline is connected with SCR reactors 4.
Ammonia still process purge pipe 2 include main pipeline 5 and separated by main pipeline 52 road exhausting pipelines 6,1 road Drainage pipe,
7,1 tunnel nitrogen tube 8.Filter 9, flowmeter 10, regulating valve 11, the first quick-break valve 12, the second quick-break are equipped on main pipeline 5 successively
Valve 13.1 control valve 18 is equipped with before and after filter 9, the branch in parallel of filter 9, branch road is equipped with 1 control valve 18.
Drainage pipe 7 is equipped with water seal arrangement 14, and Drainage pipe 7 imports main pipeline 5 after filter 9.Drainage pipe 7
And water seal arrangement 14, it realizes ammonia still process ammonia gas-liquid separation, ensure that ammonia condensation water is smoothly discharged.
Exhausting pipeline 6 is equipped with and sweeps 17,1 road exhausting pipeline 6 of steam valve and import main pipeline 6, another way before filter 8
Main pipeline 6 is imported after Drainage pipe 7.
Control valve 18, third quick-break valve 19, check-valves 15 are equipped on nitrogen pipeline 8 successively；Nitrogen pipeline 8 is in the first quick-break
Main pipeline 6 is imported between valve 12 and the second quick-break valve 13.
It dilutes wind pipeline and is equipped with combustion air fan 20, flowmeter 10, regulating valve 11, air heater 16 successively.Dilute air hose
Road 1 leads to mixer 3 pipeline after converging with ammonia still process purge pipe 2 is equipped with control valve 18.Air heater 16 heats air,
Temperature reaches requirement before so that the gaseous mixture of ammonia and air is entered SCR reactors 4.
Ammonia still process ammonia is entered by 2 entrance of ammonia still process purge pipe, and after filtering, liquefaction, purification, ammonia is entered mixed by pipeline
Clutch 3, air are entered by 1 entrance of dilution wind pipeline, enter mixer 3 by pipeline after technical ability heating, ammonia is with air mixed
In clutch 3 after mixing, de- NOx processing is carried out into SCR reactors 4.The utility model is that ammonia still process ammonia technology generations are de- for liquefied ammonia
It is supported except NOx techniques provide equipment, ensure that WSA acid-making process is safe and stable, efficient, avoid liquefied ammonia risk of explosion,
NOx removal efficiency reaches 98% or more, and tail gas is made to reach environmental emission standard.
The preferable specific implementation mode of the above, only the utility model, but the scope of protection of the utility model is not
Be confined to this, any one skilled in the art within the technical scope disclosed by the utility model, according to this practicality
Novel technical solution and its design is subject to equivalent substitution or change, should be covered within the scope of the utility model.
Claims (4)
1.WSA acid-making process ammonia still process ammonias enter SCR reactor pretreating devices, it is characterised in that：Including dilution wind pipeline with
Ammonia still process purge pipe；Dilution wind pipeline is connect by pipeline with mixer after converging with ammonia still process purge pipe, and mixer passes through pipe
Road is connected with SCR reactors；The ammonia still process purge pipe includes main pipeline and the exhausting pipeline separated by main pipeline, drain pipe
Road, nitrogen pipeline；Filter, regulating valve, the first quick-break valve, the second quick-break valve, Drainage pipe are equipped on the main pipeline successively
It is equipped with water seal arrangement, control valve, third quick-break valve, check-valves are equipped with successively on nitrogen pipeline；The dilution wind pipeline is successively
Equipped with combustion air fan, regulating valve, air heater.
2. WSA acid-making process ammonia still process ammonia according to claim 1 enters SCR reactor pretreating devices, feature exists
In：The exhausting pipeline is equipped with and sweeps steam valve.
3. WSA acid-making process ammonia still process ammonia according to claim 1 enters SCR reactor pretreating devices, feature exists
In：The nitrogen pipeline imports main pipeline between the first quick-break valve and the second quick-break valve of main pipeline.
4. WSA acid-making process ammonia still process ammonia according to claim 1 enters SCR reactor pretreating devices, feature exists
In：The main pipeline is additionally provided with flowmeter on dilution wind pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721712366.7U CN207755994U (en) | 2017-12-11 | 2017-12-11 | WSA acid-making process ammonia still process ammonias enter SCR reactor pretreating devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721712366.7U CN207755994U (en) | 2017-12-11 | 2017-12-11 | WSA acid-making process ammonia still process ammonias enter SCR reactor pretreating devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207755994U true CN207755994U (en) | 2018-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721712366.7U Active CN207755994U (en) | 2017-12-11 | 2017-12-11 | WSA acid-making process ammonia still process ammonias enter SCR reactor pretreating devices |
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| CN (1) | CN207755994U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110026064A (en) * | 2019-03-26 | 2019-07-19 | 华泰永创(北京)科技股份有限公司 | The feedway and method of a kind of coke oven denitration in the stove also Primordial Qi |
-
2017
- 2017-12-11 CN CN201721712366.7U patent/CN207755994U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110026064A (en) * | 2019-03-26 | 2019-07-19 | 华泰永创(北京)科技股份有限公司 | The feedway and method of a kind of coke oven denitration in the stove also Primordial Qi |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210906 Address after: 114000 Angang Xiaodongmen, Lishan District, Anshan City, Liaoning Province Patentee after: Anshan Chemical Technology Co.,Ltd. Address before: 114000 No. 1 ring steel road, Tiexi District, Liaoning, Anshan Patentee before: ANGANG STEEL Co.,Ltd. |