CN107096366A - Gravity flow SNCR denitration system - Google Patents
Gravity flow SNCR denitration system Download PDFInfo
- Publication number
- CN107096366A CN107096366A CN201710466589.8A CN201710466589A CN107096366A CN 107096366 A CN107096366 A CN 107096366A CN 201710466589 A CN201710466589 A CN 201710466589A CN 107096366 A CN107096366 A CN 107096366A
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- CN
- China
- Prior art keywords
- intermediate storage
- urea
- tank
- storage tank
- gravity flow
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000005484 gravity Effects 0.000 title claims abstract description 15
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims abstract description 39
- 239000004202 carbamide Substances 0.000 claims abstract description 39
- 238000012432 intermediate storage Methods 0.000 claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000008400 supply water Substances 0.000 claims abstract description 11
- 239000007787 solid Substances 0.000 claims abstract description 7
- 238000010612 desalination reaction Methods 0.000 claims abstract description 6
- 238000009434 installation Methods 0.000 claims abstract description 6
- 239000007788 liquid Substances 0.000 claims description 23
- 210000002700 urine Anatomy 0.000 claims 1
- 239000007921 spray Substances 0.000 abstract description 4
- 239000000919 ceramic Substances 0.000 abstract description 2
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000005381 potential energy Methods 0.000 description 2
- 239000000376 reactant Substances 0.000 description 2
- GQPLMRYTRLFLPF-UHFFFAOYSA-N Nitrous Oxide Chemical class [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000003916 acid precipitation Methods 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/54—Nitrogen compounds
- B01D53/56—Nitrogen oxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/79—Injecting reactants
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/20—Reductants
- B01D2251/206—Ammonium compounds
- B01D2251/2067—Urea
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treating Waste Gases (AREA)
Abstract
The present invention is a kind of gravity flow SNCR denitration system, it mainly includes the urea dissolving tank being sequentially connected, supply water pump module, intermediate storage tank, distribute module and gun system, horizontal level residing for intermediate storage tank is higher than gun system, urea dissolving tank entrance point respectively connected solid urea device and desalination water installations, urea dissolving tank is linked together by supplying water pump module with intermediate storage tank, distribute module entrance point respectively connected the intermediate storage tank port of export and provide the air accumulator of compressed air, the distribute module port of export connects some gun systems, the present invention is operated in ceramic spray tower, denitration efficiency is more than 50%, required space is small, implement simple and convenient, and have investment and operating cost low.
Description
Technical field
The present invention relates to gas denitrifying technology field, more particularly to a kind of gravity flow SNCR denitration system.
Background technology
With the more and more higher of the industrialization of the country, the discharged nitrous oxides total amount of enterprise is more and more, causes nitrogen in air
Oxide accumulation is more and more, forms acid rain；And under certain meteorological condition, nitrogen oxides can form photochemical fog, danger
Victimize it is healthy.Prevent the importance of environmental pollution, be sharply contemplated as the problem of world wide.Cause
This research gas denitrifying technology, the emphasis of Air Pollution prevention and control is classified as by many countries, and built up some commercial scales in succession
Practical processing unit.Current SNCR denitration system is all to enter back into gun system, whole denitration after being pressurized to urea liquid
System investments and operating cost are higher.
The content of the invention
Technical problem solved by the invention is providing a kind of gravity flow SNCR denitration system.
The technology used in the present invention means are as described below.
A kind of gravity flow SNCR denitration system, includes the urea dissolving tank being sequentially connected, supply water pump module, intermediate storage
Tank and some gun systems, horizontal level residing for the intermediate storage tank are higher than gun system.
Supersonic liquid level device is equipped with the urea dissolving tank, intermediate storage tank.
Agitator is set in the urea dissolving tank connection solid urea device and desalination water installations, urea dissolving tank.
The supply water pump module is 2 tunnels supply water pump in parallel and pipeline.
Distribute module and air accumulator are also included, the distribute module is arranged between intermediate storage tank and gun system, point
The urea liquid pipeline at intermediate storage tank liquid outlet end is divided into some branch pipes being connected with each gun system, the storage with module
The compressed air piping of gas tank outlet connects some branch pipes respectively after distribute module.
Urea concentration in the urea dissolving tank and intermediate storage tank is 10%.
Technique effect produced by the present invention：The power flowed by the use of itself potential energy that solution flows as urea liquid,
Water pump pressure charging system, reduction cost of investment and operating cost are reduced, implements simple and convenient, denitration efficiency is reduced up to more than 50%
The discharge of nitrogen oxides.
Brief description of the drawings
Fig. 1 is gravity flow SNCR denitration system structure chart of the invention.
Embodiment
A kind of gravity flow SNCR denitration system of present invention protection, as shown in figure 1, it includes the urea dissolving tank being sequentially connected
5th, supply water pump module 6, intermediate storage tank 8 and some gun systems 11, the entrance point of urea dissolving tank 5 are connected to provide raw material
Solid urea device 1 and desalination water installations 2.The key protection point of the present invention is that horizontal level residing for intermediate storage tank 8 is higher than
Gun system 11, to provide the potential energy of urea liquid flowing.
Above-mentioned supply water pump module 6 is that two-way water pump pipeline is in parallel, the using and the reserved, it is ensured that the normal operation of denitrating system.
Air accumulator 9 in the system of the present invention also comprising distribute module 10 and offer compressed air, distribute module 10 is set
Between intermediate storage tank 8 and gun system 11, distribute module 10 divides the urea liquid pipeline at the liquid outlet end of intermediate storage tank 8
For some branch pipes being connected with each gun system entrance point, the compressed air piping of the port of export of air accumulator 9 is by distribution mould
The branch pipe of some gun systems is connected after block 10 respectively.
Supersonic liquid level device B is equiped with addition, being equiped with urea dissolving tank 5 in sound wave liquid level device A, intermediate storage tank 8.
During actual motion, when supersonic liquid level device A detects the lowest water level of urea solution tank 5, solid urea device 1
Appropriate solid urea and demineralized water are added in urea solution tank 5 automatically with desalination water installations 2,10% concentration is matched out
Urea liquid, the agitator 4 inside set is stirred dissolving to it；When supersonic liquid level device A detects the highest of urea solution tank 5
During water level, solid urea device 1 and desalination water installations 2 stop charging.
When supersonic liquid level device B detects the lowest water level of intermediate storage tank 8, the automatic start of supply water pump module 6 to
Intermediate storage tank 8 conveys 10% urea liquid；When supersonic liquid level device B detects the peak level of intermediate storage tank 8, supply
Water pump module 6 is stopped.
The urea liquid of intermediate storage tank 8 enters distribute module 10 from liquid outlet end, the compressed air of air accumulator 9 also by
Pipeline enters distribute module 10, by the change to NOx concentration level, automatically adjusts the stream of reactants of the port of export of distribute module 10
Amount.The port of export of distribute module 10 is connected by compressed air piping and urea liquid pipeline with each gun system 11, compressed air
Pipeline is the compressed air needed for gun system 11 provides atomization, and urea liquid pipeline is that gun system 11 provides reactant, spray
Gun system 11 is ejected into 10% urea liquid in the hot-blast stove of spray tower, position of the temperature at 900 ~ 1100 DEG C.
The hot-blast stove of ceramics factory's spray tower, denitration efficiency are successfully applied to using the gravity flow SNCR denitration system of the present invention
Surpass 50%, stable and reliable operation.
Claims (6)
1. a kind of gravity flow SNCR denitration system, it is characterised in that include the urea dissolving tank, supply water pump mould being sequentially connected
Block, intermediate storage tank and some gun systems, horizontal level residing for the intermediate storage tank are higher than gun system.
2. gravity flow SNCR denitration system as claimed in claim 1, it is characterised in that the urea dissolving tank, intermediate storage
Supersonic liquid level device is equipped with tank.
3. gravity flow SNCR denitration system as claimed in claim 1, it is characterised in that the urea dissolving tank connection solid urine
White, quiet clothes put with desalination water installations, set agitator in urea dissolving tank.
4. gravity flow SNCR denitration system as claimed in claim 1, it is characterised in that the supply water pump module is in parallel
2 roads supply water pump and pipeline.
5. gravity flow SNCR denitration system as claimed in claim 1, it is characterised in that also comprising distribute module and air accumulator,
The distribute module is arranged between intermediate storage tank and gun system, and distribute module is by the urea at intermediate storage tank liquid outlet end
Solution line is divided into some branch pipes being connected with each gun system, and the compressed air piping of the reservoir outlet is by distribution mould
Some branch pipes are connected after block respectively.
6. gravity flow SNCR denitration system as claimed in claim 1, it is characterised in that the urea dissolving tank and intermediate storage
Urea concentration in tank is 10%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710466589.8A CN107096366A (en) | 2017-06-20 | 2017-06-20 | Gravity flow SNCR denitration system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710466589.8A CN107096366A (en) | 2017-06-20 | 2017-06-20 | Gravity flow SNCR denitration system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107096366A true CN107096366A (en) | 2017-08-29 |
Family
ID=59660353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710466589.8A Pending CN107096366A (en) | 2017-06-20 | 2017-06-20 | Gravity flow SNCR denitration system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107096366A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120047885A1 (en) * | 2009-12-11 | 2012-03-01 | Yuh-Huei Shyu | Potential energy regenerating system and method and electricity regenerating system and method |
| CN102658022A (en) * | 2012-05-29 | 2012-09-12 | 福建龙净环保股份有限公司 | SNCR (Selective non-catalytic reaction) denitration system |
| CN102688688A (en) * | 2012-06-07 | 2012-09-26 | 中国华能集团清洁能源技术研究院有限公司 | SNCR (Selective Non Catalytic Reduction) denitration device with low energy consumption and high efficiency for circulating fluidized bed boilers |
| CN104759204A (en) * | 2015-04-13 | 2015-07-08 | 华北电力大学（保定） | Boiler flue gas combined demercuration and dearsenification device and removing method thereof |
| CN206823528U (en) * | 2017-06-20 | 2018-01-02 | 佛山市三水新明珠建陶工业有限公司 | Gravity flow SNCR denitration system |
-
2017
- 2017-06-20 CN CN201710466589.8A patent/CN107096366A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120047885A1 (en) * | 2009-12-11 | 2012-03-01 | Yuh-Huei Shyu | Potential energy regenerating system and method and electricity regenerating system and method |
| CN102658022A (en) * | 2012-05-29 | 2012-09-12 | 福建龙净环保股份有限公司 | SNCR (Selective non-catalytic reaction) denitration system |
| CN102688688A (en) * | 2012-06-07 | 2012-09-26 | 中国华能集团清洁能源技术研究院有限公司 | SNCR (Selective Non Catalytic Reduction) denitration device with low energy consumption and high efficiency for circulating fluidized bed boilers |
| CN104759204A (en) * | 2015-04-13 | 2015-07-08 | 华北电力大学（保定） | Boiler flue gas combined demercuration and dearsenification device and removing method thereof |
| CN206823528U (en) * | 2017-06-20 | 2018-01-02 | 佛山市三水新明珠建陶工业有限公司 | Gravity flow SNCR denitration system |
Non-Patent Citations (1)
| Title |
|---|
| 毛志伟等: "《氮氧化物减排》", 31 August 2014 * |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20171122 Address after: 528061 Guangdong city of Foshan province Baini town Sanshui District Central Industrial Development Zone Applicant after: FOSHAN SANSHUI NEW PEARL CONSTRUCTION CERAMICS INDUSTRIAL Co.,Ltd. Applicant after: GUANGDONG GELAISI CERAMICS Co.,Ltd. Applicant after: GUANGDONG NEWPEARL CERAMIC GROUP Co.,Ltd. Applicant after: Jiangxi Xinmingzhu Building Materials Co.,Ltd. Address before: 528061 Guangdong city of Foshan province Baini town Sanshui District Central Industrial Development Zone Applicant before: FOSHAN SANSHUI NEW PEARL CONSTRUCTION CERAMICS INDUSTRIAL Co.,Ltd. Applicant before: GUANGDONG GELAISI CERAMICS Co.,Ltd. Applicant before: GUANGDONG NEWPEARL CERAMIC GROUP Co.,Ltd. |
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| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20200527 Address after: 528131 Guangdong city of Foshan province Baini town Sanshui District Central Industrial Development Zone Applicant after: FOSHAN SANSHUI NEW PEARL CONSTRUCTION CERAMICS INDUSTRIAL Co.,Ltd. Applicant after: GUANGDONG NEWPEARL CERAMIC GROUP Co.,Ltd. Applicant after: Jiangxi Xinmingzhu Building Materials Co.,Ltd. Address before: 528061 Guangdong city of Foshan province Baini town Sanshui District Central Industrial Development Zone Applicant before: FOSHAN SANSHUI NEW PEARL CONSTRUCTION CERAMICS INDUSTRIAL Co.,Ltd. Applicant before: GUANGDONG GELAISI CERAMICS Co.,Ltd. Applicant before: GUANGDONG NEWPEARL CERAMIC GROUP Co.,Ltd. Applicant before: Jiangxi Xinmingzhu Building Materials Co.,Ltd. |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170829 |