CN203564950U - Sintering flue gas denitrating device - Google Patents
Sintering flue gas denitrating device Download PDFInfo
- Publication number
- CN203564950U CN203564950U CN201320744052.0U CN201320744052U CN203564950U CN 203564950 U CN203564950 U CN 203564950U CN 201320744052 U CN201320744052 U CN 201320744052U CN 203564950 U CN203564950 U CN 203564950U
- Authority
- CN
- China
- Prior art keywords
- flue
- gas
- flue gas
- exhaust
- air inlet
- 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.)
- Expired - Lifetime
Links
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 44
- 239000003546 flue gas Substances 0.000 title claims abstract description 44
- 238000005245 sintering Methods 0.000 title abstract description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 38
- 229910021529 ammonia Inorganic materials 0.000 claims abstract description 19
- 239000007789 gas Substances 0.000 claims abstract description 14
- 239000003517 fume Substances 0.000 claims description 11
- 239000007921 spray Substances 0.000 claims description 10
- 238000005452 bending Methods 0.000 claims description 9
- 239000003054 catalyst Substances 0.000 claims description 7
- 239000004071 soot Substances 0.000 claims description 7
- 239000000779 smoke Substances 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 abstract description 3
- 238000005507 spraying Methods 0.000 abstract description 3
- 239000010959 steel Substances 0.000 abstract description 3
- 239000004568 cement Substances 0.000 abstract description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 2
- 229910052742 iron Inorganic materials 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 3
- 238000007664 blowing Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000013517 stratification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 235000019628 coolness Nutrition 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Chimneys And Flues (AREA)
Abstract
The utility model discloses a sintering flue gas denitrating device. The device comprises a flue gas passage, a denitration reactor and an ammonia air blender, wherein the flue gas passage is connected with a chimney; a gas-inlet flue and a gas-outlet flue are vertically arranged on the flue gas passage; the lower ends of the gas-inlet flue and the gas-outlet flue are respectively connected with the flue gas passage through a gas-inlet isolating valve and a gas-outlet isolating valve; a main isolating valve is arranged on the flue gas passage between the gas-inlet flue and the gas-outlet flue; the gas-inlet flue consists of a bent section and a vertical section which are connected up and down; the bent section and the top of the denitration reactor are connected into a whole; ammonia spraying grids are arranged on the connecting part between the vertical section and the bent section; flue gas heat exchangers for gas heat exchange in the gas-inlet flue and the gas-outlet flue are also arranged on the vertical section and the gas-outlet flue. The device is applied to flue gas denitration in a sintering factory in iron and steel industry, electric power industry and cement industry. Compared with the ordinary denitrating device, the sintering flue gas denitrating device has the advantages of stable running, convenience in control and high flue gas denitrating efficiency.
Description
Technical field
The utility model relates to gas denitrifying technology field, refers to particularly a kind of sinter fume denitrification apparatus.
Background technology
Along with the enforcement of country to the increasingly strict and New emission standard of steel industry environmental protection policy, the denitration efficiency that requires, realizes stability and high efficiency for meeting stricter discharge standard, therefore, the technology of development of new efficient denitrifying device will have necessity.
Existing equipment for denitrifying flue gas configurations, but most denitration effects are not ideal enough, and energy consumption is larger, can not meet the requirement of discharge standard completely.
Summary of the invention
The purpose of this utility model with overcome the defect that existing equipment for denitrifying flue gas denitration effect is undesirable, energy consumption is larger, a kind of simple in structure, effective sinter fume denitrification apparatus is provided.
For achieving the above object, the sinter fume denitrification apparatus that the utility model is designed, comprise the exhaust gases passes being connected with chimney, also comprise Benitration reactor and ammonia air mixer, on described Reactor inlet exhaust gases passes, be vertically furnished with air inlet flue and exhaust uptake, the lower end of described air inlet flue and exhaust uptake is connected with exhaust gases passes by air inlet isolating valve,, exhaust isolating valve, respectively, and is provided with main isolating valve, on the exhaust gases passes between air inlet flue and exhaust uptake; Described air inlet flue consists of the bending segment being connected up and down and vertical section, and the top of described bending segment and Benitration reactor links into an integrated entity, and described vertical section is furnished with spray ammonia grid with the junction of bending segment; In described Benitration reactor, by top, be sequentially with deflector, rectification layer and catalyst layer downwards, the bottom of described Benitration reactor is connected with exhaust uptake; Described ammonia air mixer one end is connected with spray ammonia grid, and the other end is connected with blower fan; On described vertical section and exhaust uptake, be also provided with the flue gas heat-exchange unit for air heat exchange in air inlet flue and exhaust uptake.
Preferably, described flue gas heat-exchange unit is rotary type heat exchanger.
Preferably, be also provided with the burner for flue gas on vertical section between described flue gas heat-exchange unit and spray ammonia grid, further improve the activity of denitrating catalyst, obtain better denitration effect.
Preferably, described Benitration reactor place is also provided with soot blower.Increase soot blower to reduce the dust stratification in reactor, avoid dust stratification to stop up Benitration reactor, denitration reaction is carried out more smooth and easy, improve denitration efficiency, soot blower has steam soot blowing, sonic soot blowing, is arranged in the top of every layer of reactor, all belong to prior art, do not repeat.
Preferably, described smoke inlet place is also provided with air-introduced machine.
The beneficial effects of the utility model:
1, by the reasonable Arrangement of flue, and isolating valve, is set, is conducive to control the trend of flue gas, be convenient to the inspection and maintenance of denitrification apparatus.
2, in air inlet flue, be provided with ammonia-spraying grid, guaranteed that flue gas mixes with the even of ammonia, air mixer.
3, on air inlet flue, exhaust uptake, be provided with flue gas heat-exchange unit, make the flue-gas temperature after denitration obtain recycling, improve the temperature of former flue gas, avoided the waste of heat.
4, flue gas heat-exchange unit and burner two-step heating, make flue-gas temperature be controlled at the temperature needing, and guaranteed the activity of denitrating catalyst, can obtain better denitration effect.
5, in Benitration reactor, arranged deflector, be provided with rectification layer on catalyst, in reactor, smoke distribution is difficult for existing " short circuit " and " dead angle ", and flue gas flow field is more evenly distributed, and makes denitrating flue gas better effects if.
The suitable denitrating flue gas that is applied to steel industry sintering plant of the utility model, also can be applicable to, in the denitrating flue gas of electric power and cement industry, with respect to general denitration, realize stable equipment operation through simple combination, and it is convenient to control, and denitrating flue gas efficiency is high.
Accompanying drawing explanation
Fig. 1 is the structural representation of sinter fume denitrification apparatus of the present utility model.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
As shown in Figure 1, sinter fume denitrification apparatus, comprise the exhaust gases passes 1 being connected with chimney 19, also comprise Benitration reactor 6 and ammonia air mixer 5, on exhaust gases passes 1, be vertically furnished with air inlet flue 3 and exhaust uptake 4, the lower end of air inlet flue 3 and exhaust uptake 4 is connected with exhaust gases passes 1 by air inlet isolating valve, 14, exhaust isolating valve, 15 respectively, and on the exhaust gases passes 1 between air inlet flue 3 and exhaust uptake 4, be provided with main isolating valve, 16, when main isolating valve, 16 overhauls for denitration device, do not affect the production run of agglomerating plant.
Air inlet flue 3 consists of the bending segment 3.1 being connected up and down and vertical section 3.2, and bending segment 3.1 links into an integrated entity with the top of Benitration reactor 6, and vertically the junction of section 3.2 and bending segment 3.1 is furnished with spray ammonia grid 8; In Benitration reactor 6, by top, be sequentially with deflector 9, rectification layer 10 and catalyst layer 13 downwards, the bottom of Benitration reactor 6 is connected with exhaust uptake 4; Ammonia air mixer 5 one end are connected with spray ammonia grid 8, and the other end is connected with blower fan 11; Vertically on section 3.2 and exhaust uptake 4, be also provided with the flue gas heat-exchange unit 12 for air inlet flue 3 and the interior air heat exchange of exhaust uptake 4.Flue gas heat-exchange unit 12 is rotary type heat exchanger.
On vertical section 3.2 between flue gas heat-exchange unit 12 and spray ammonia grid 8, be also provided with the burner 7 for flue gas.Benitration reactor 6 places are also provided with soot blower 17.Smoke inlet place is also provided with air-introduced machine 18.
Introduce the course of work of the present utility model below.
The flue gas of denitration flue gas after flue gas heat-exchange unit 12 and denitration do not carry out heat exchange and improves temperature, then through burner 7 heating, further improve temperature, reach the requirement that meets catalyst activity temperature, in vertical section 3.2, being provided with ammonia-spraying grid 8 sprays into the mixed mist of ammonia air mixer 5 in air inlet flue, and after evenly mixing with denitration flue gas not, enter and in Benitration reactor 6, carry out fast reaction, remove the NOx in flue gas, the flue gas after denitration drains into chimney 19 after flue gas heat-exchange unit 12 coolings.
Claims (5)
1. a sinter fume denitrification apparatus, comprise the exhaust gases passes (1) being connected with chimney (19), it is characterized in that: also comprise Benitration reactor (6) and ammonia air mixer (5), on described exhaust gases passes (1), be vertically furnished with air inlet flue (3) and exhaust uptake (4), the lower end of described air inlet flue (3) and exhaust uptake (4) is connected with exhaust gases passes (1) by air inlet isolating valve, (14), exhaust isolating valve, (15) respectively, and is provided with main isolating valve, (16) on the exhaust gases passes (1) between air inlet flue (3) and exhaust uptake (4);
Described air inlet flue (3) consists of the bending segment being connected up and down (3.1) and vertical section (3.2), described bending segment (3.1) links into an integrated entity with the top of Benitration reactor (6), and described vertical section (3.2) are furnished with spray ammonia grid (8) with the junction of bending segment (3.1); In described Benitration reactor (6), by top, be sequentially with deflector (9), rectification layer (10) and catalyst layer (13) downwards, the bottom of described Benitration reactor (6) is connected with exhaust uptake (4); Described ammonia air mixer (5) one end is connected with spray ammonia grid (8), and the other end is connected with blower fan (11); On described vertical section (3.2) and exhaust uptake (4), be also provided with the flue gas heat-exchange unit (12) for air inlet flue (3) and the interior air heat exchange of exhaust uptake (4).
2. sinter fume denitrification apparatus according to claim 1, is characterized in that: described flue gas heat-exchange unit (12) is rotary type heat exchanger.
3. sinter fume denitrification apparatus according to claim 1, is characterized in that: on vertical section (3.2) between described flue gas heat-exchange unit (12) and spray ammonia grid (8), be also provided with the burner (7) for flue gas.
4. according to the sinter fume denitrification apparatus described in claim 1 or 2 or 3, it is characterized in that: described Benitration reactor (6) locates to be also provided with soot blower (17).
5. according to the sinter fume denitrification apparatus described in claim 1 or 2 or 3, it is characterized in that: described smoke inlet place is also provided with air-introduced machine (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320744052.0U CN203564950U (en) | 2013-11-21 | 2013-11-21 | Sintering flue gas denitrating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320744052.0U CN203564950U (en) | 2013-11-21 | 2013-11-21 | Sintering flue gas denitrating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203564950U true CN203564950U (en) | 2014-04-30 |
Family
ID=50532714
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320744052.0U Expired - Lifetime CN203564950U (en) | 2013-11-21 | 2013-11-21 | Sintering flue gas denitrating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203564950U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105233669A (en) * | 2015-10-19 | 2016-01-13 | 上海盛剑环境系统科技有限公司 | Flue gas denitrification SCR system |
| CN105597533A (en) * | 2016-03-16 | 2016-05-25 | 江苏峰业科技环保集团股份有限公司 | Device for denitration heating blend technology |
| CN105716102A (en) * | 2016-03-24 | 2016-06-29 | 佛山市顺德五沙热电有限公司 | System for optimizing air taking manner of dilution fans of power plant denitration devices |
| CN105903348A (en) * | 2015-12-22 | 2016-08-31 | 江苏卓易环保科技有限公司 | Desulfurization and denitrification purification exhaust device |
| CN105944565A (en) * | 2016-06-16 | 2016-09-21 | 北京方信立华科技有限公司 | Integrated energy-saving SCR denitration device |
| CN109589788A (en) * | 2018-12-05 | 2019-04-09 | 武汉奥杰科技股份有限公司 | A kind of Novel flue gas denitrating system |
| CN109883211A (en) * | 2019-03-29 | 2019-06-14 | 中冶华天工程技术有限公司 | Sintering flue gas heating device |
| CN112237841A (en) * | 2020-11-16 | 2021-01-19 | 华润电力(唐山曹妃甸)有限公司 | SCR reactor and nitrogen oxide removal system |
-
2013
- 2013-11-21 CN CN201320744052.0U patent/CN203564950U/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105233669A (en) * | 2015-10-19 | 2016-01-13 | 上海盛剑环境系统科技有限公司 | Flue gas denitrification SCR system |
| CN105233669B (en) * | 2015-10-19 | 2019-02-01 | 上海盛剑环境系统科技股份有限公司 | A kind of denitrating flue gas SCR system |
| CN105903348A (en) * | 2015-12-22 | 2016-08-31 | 江苏卓易环保科技有限公司 | Desulfurization and denitrification purification exhaust device |
| CN105597533A (en) * | 2016-03-16 | 2016-05-25 | 江苏峰业科技环保集团股份有限公司 | Device for denitration heating blend technology |
| CN105716102A (en) * | 2016-03-24 | 2016-06-29 | 佛山市顺德五沙热电有限公司 | System for optimizing air taking manner of dilution fans of power plant denitration devices |
| CN105944565A (en) * | 2016-06-16 | 2016-09-21 | 北京方信立华科技有限公司 | Integrated energy-saving SCR denitration device |
| CN105944565B (en) * | 2016-06-16 | 2019-09-03 | 北京方信立华科技有限公司 | Integrated energy-saving SCR denitration device |
| CN109589788A (en) * | 2018-12-05 | 2019-04-09 | 武汉奥杰科技股份有限公司 | A kind of Novel flue gas denitrating system |
| CN109589788B (en) * | 2018-12-05 | 2021-11-30 | 武汉奥杰科技股份有限公司 | Novel flue gas denitration system |
| CN109883211A (en) * | 2019-03-29 | 2019-06-14 | 中冶华天工程技术有限公司 | Sintering flue gas heating device |
| CN112237841A (en) * | 2020-11-16 | 2021-01-19 | 华润电力(唐山曹妃甸)有限公司 | SCR reactor and nitrogen oxide removal system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: WUHAN HUADE ECOTEK Corp. Assignor: WUHAN IRON AND STEEL (GROUP) Corp. Contract record no.: 2015420000064 Denomination of utility model: Sintering flue gas denitrating device Granted publication date: 20140430 License type: Exclusive License Record date: 20150504 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170629 Address after: 430080 No. 99, steel road, workers Village Road, Qingshan District, Hubei, Wuhan Patentee after: WUHAN HUADE ECOTEK Corp. Address before: 430080 Wuchang, Hubei Friendship Road, No. A, block, floor 999, 15 Co-patentee before: WUHAN HUADE ECOTEK Corp. Patentee before: WUHAN IRON AND STEEL (GROUP) Corp. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140430 |
|
| CX01 | Expiry of patent term |