CN206881514U - A kind of coke oven flue gas desulphurization denitration equipment - Google Patents
A kind of coke oven flue gas desulphurization denitration equipment Download PDFInfo
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- CN206881514U CN206881514U CN201720830317.7U CN201720830317U CN206881514U CN 206881514 U CN206881514 U CN 206881514U CN 201720830317 U CN201720830317 U CN 201720830317U CN 206881514 U CN206881514 U CN 206881514U
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- gas
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- packing layer
- desulphurization denitration
- bearing formation
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Abstract
The utility model discloses a kind of coke oven flue gas desulphurization denitration equipment, including ammonia air mixing device 6, desulphurization denitration tower 22, dust arrester 14, water washing device 16, wherein desulphurization denitration tower 22 includes into gas-bearing formation 1, packing layer 2 and goes out gas-bearing formation 3；The upper end for entering gas-bearing formation 1 is provided with mixed gas import 10, lower end is provided with gas approach 13, the side away from packing layer in tower of mixed gas import 10 is provided with the deflector 11 of adjustable tilt angle, and gas approach 13 is provided with the deflector 12 of adjustable tilt angle in tower close to the side of packing layer；Packing layer is provided with pressure-bearing screen 18, and the filler 8 of supported catalyst is placed with pressure-bearing screen 18；Wherein deflector can be buffered into the gas in tower, form uniform airflow field, make gas unobstructed into supported catalyst packing layer, reduce the impact to filler, extend the service life of catalyst.
Description
Technical field
A kind of flue gas purifying equipment is the utility model is related to, more particularly, to a kind of coke oven flue gas desulphurization denitration equipment.
Background technology
One of development trend of flue gas desulfurization and denitrification is using catalysis reduction (SCR) technology, in order to improve purification efficiency,
Ask the catalyst wherein applied can simultaneous SO_2 and NO removal, and temperature is usually 180 after being reclaimed due to China's waste heat of coke-oven flue gas
DEG C or so, the active temperature of conventional desulfurization denitrating catalyst product is 300-350 DEG C, can not be applied to the desulfurization of coke oven flue gas
Denitrification process, also without corresponding desulphurization denitration equipment.
Utility model content
In order to solve the above technical problems, the utility model provides the desulfurization that a kind of input cost is low, denitrification efficiency is high
Out of stock equipment.
The technical solution of the utility model is to provide a kind of coke oven flue gas desulphurization denitration equipment, including ammonia air mixing dress
6, desulphurization denitration tower 22, dust arrester 14, water washing device 16 are put, wherein desulphurization denitration tower 22 is included into gas-bearing formation 1, the and of packing layer 2
Go out gas-bearing formation 3；It is described enter gas-bearing formation 1 upper end be provided with mixed gas import 10, lower end is provided with gas approach 13, the gaseous mixture
Body import 10 is connected by pipeline with ammonia air mixing device 6, the mixed gas import 10 remote packing layer in tower
Side is provided with the deflector 11 of adjustable tilt angle, and the gas approach 13 is connected by pipeline with dust arrester 14, institute
State the deflector 12 that gas approach 13 is provided with adjustable tilt angle in tower close to the side of packing layer；Described filler layer is set
Pressure-bearing screen 18 is equipped with, the filler 8 of supported catalyst is placed with the pressure-bearing screen 18；It is described go out the top of gas-bearing formation 3 set
There is gas outlet 7, go out gas-bearing formation upper side and be provided with circulation gas port 19, the gas outlet 7 is connected by pipeline with water washing device 16,
The circulation gas port 19 is connected by soak cycles pipeline 9 with gas approach 13, close to circulating air on the soak cycles pipeline 9
Valve 20 is provided with mouth 19, goes out in gas-bearing formation and is provided with gas concentration monitoring instrument 21 between gas outlet 7 and circulation gas port 19.
Described filler layer 2 shares 3-7 layers, and each layer height is identical, is packing layer serial number from bottom of towe to tower top, first layer
Packed height accounts for the 85-90% of the bed stuffing height in packing layer, and packed height accounts for the filler floor height in last layer of packing layer
The 55-60% of degree, packed height accounts for the 70-80% of the respectively packing layer in remaining packing layer.Packed height in each layer is non-
Even setting, the space vacated in one side packing layer can be such that gas further mixes, the change of another aspect packed height and cigarette
The change in concentration of nitrogen oxides and sulfur dioxide matches in gas, it is possible to increase the utilization rate of filler, has saved the use of filler
Amount, and then save cost.
The gas concentration monitoring instrument 21 has the automatic control system that control gas outlet 7 opens and closes with valve 20,
The concentration of nitrogen oxides in effluent that can be after detection process and sulfur dioxide, can if not meeting threshold value set in advance
Close gas outlet 7 and open valve 20, if meeting threshold value set in advance, gas outlet 7 can be opened and close valve 20.
The movable end tendency tower top of the deflector 11, the angle of itself and tower wall is 50 °~60 °, buffers the mixing of entrance
Gas, form uniform airflow field.
The movable end tendency bottom of towe of the deflector 12, the angle of itself and tower wall is 45 °~50 °, makes the flue gas shape of entrance
Into small vortex, be advantageous to mix with ammonia so as to more preferably be reacted after it enters catalyst filling layer.
The advantages of the utility model and beneficial effect：
Desulphurization denitration tower is entering setting deflector at gas-bearing formation, the gas that buffering enters in tower, forms uniform airflow field, makes
The unobstructed packing layer into supported catalyst of gas, reduces the impact to filler, extends the service life of catalyst, in addition, will
Mixed gas import is positioned close to the position of packing layer, can make first to be full of reducing agent in catalyst filling and dilute in flue gas
Sulfur dioxide reduces deposition of the reaction product in catalyst surface so as to reduce both reactions.
Brief description of the drawings
Fig. 1 is desulphurization denitration equipment schematic diagram.
Accompanying drawing marks explanation：1- enters gas-bearing formation, 2 packing layers, and 3- goes out gas-bearing formation, 4- air intlets, 5- ammonia imports, 6- ammonias sky
Gas mixing arrangement, 7- gas outlets, 8- fillers, 9- soak cycles pipelines, 10- mixed gas imports, 11- mixed gas import water conservancy diversion
Plate, 12- gas approach deflectors, 13- gas approach, 14- dust arresters, 15- coke oven flue gas imports, 16- water washing devices, 17-
Outlet pipe, 18- pressure-bearing screens, 19- circulation gas ports, 20- valves, 21- gas concentration monitoring instruments, 22- desulphurization denitration towers.
Embodiment
The utility model is described in further detail with reference to the accompanying drawings and detailed description.
The utility model provides a kind of desulphurization denitration equipment, including ammonia air mixing device 6, desulphurization denitration tower (22),
Dust arrester 14, water washing device 16, wherein desulphurization denitration tower 22 include into gas-bearing formation 1, packing layer 2 and go out gas-bearing formation 3；It is described enter gas-bearing formation
1 upper end is provided with mixed gas import 10, and lower end is provided with gas approach 13, the mixed gas import 10 by pipeline with
Ammonia air mixing device 6 connects, and the mixed gas import 10 side away from packing layer in tower, which is provided with can adjust, inclines
The deflector 11 of rake angle, the movable end tendency tower top of the deflector 11, the angle of itself and tower wall is 50 °, to be buffered into
The mixed gas entered, uniform airflow field is formed, the gas approach 13 is connected by pipeline with dust arrester 14, the flue gas
Import 13 is provided with the deflector 12 of adjustable tilt angle, the activity of the deflector 12 in tower close to the side of packing layer
End tendency bottom of towe, the angle of itself and tower wall is 50 °, the flue gas of entrance is formed small vortex, is advantageous to flue gas and is filled out into catalyst
Mixed after the bed of material with ammonia so as to more preferably be reacted；Described filler layer is provided with pressure-bearing screen 18, in the pressure-bearing screen 18
On be placed with the filler 8 of supported catalyst, described filler layer shares five layers, and each layer height is identical, is filler from bottom of towe to tower top
Layer serial number, packed height accounts for the 85% of the bed stuffing height in first layer packing layer, packed height in layer 5 packing layer
Account for the 58% of the bed stuffing height, second and third, packed height accounts for the 75% of the respectively packing layer in four layers of packing layer.By in each layer
The non-homogeneous setting of packed height, the space vacated in one side packing layer can be such that gas further mixes beneficial to carrying out again
Reaction or the accuracy for ensureing gas composition concentration detection, the change of another aspect packed height and nitrogen oxides in effluent and two
The change in concentration of sulfur oxide matches, it is possible to increase the utilization rate of filler, has saved the usage amount of filler, and then has saved cost；
It is described go out the top of gas-bearing formation 3 be provided with gas outlet 7, the gas outlet 7 is connected by pipeline with water washing device 16, it is described go out gas-bearing formation 3
Upper side is provided with circulation gas port 19, and the circulation gas port 19 is connected by soak cycles pipeline 9 with gas approach 13, described
Valve 20 is provided with circulation gas port 19 on soak cycles pipeline 9, is gone out in gas-bearing formation 3 between gas outlet 7 and circulation gas port 19
Gas concentration monitoring instrument 21 is provided with, there is the gas concentration monitoring instrument 21 control gas outlet 7 to be opened and closed with valve 20
Automatic control system, the concentration of nitrogen oxides in effluent that can be after detection process and sulfur dioxide, if not meeting in advance
The threshold value of setting, then it can close gas outlet 7 and open valve 20, if meeting threshold value set in advance, gas outlet 7 can be opened simultaneously
Close valve 20.
Material, reagent and the experimental facilities that the utility model embodiment is related to, it is to meet air unless otherwise instructed
The commercially available prod of field of purification.
It is described above, preferred embodiment only of the present utility model, it is noted that for the ordinary skill of the art
For personnel, on the premise of core technology of the present utility model is not departed from, improvements and modifications can also be made, these improve and
Retouching should also belong to scope of patent protection of the present utility model.The implication and scope suitable with claims of the present utility model
Interior any change, all it is considered as being included within the scope of the claims.
Claims (5)
1. a kind of desulphurization denitration equipment, including ammonia air mixing device (6), desulphurization denitration tower (22), dust arrester (14), water
Cleaning device (16), it is characterised in that：The desulphurization denitration tower (22) includes into gas-bearing formation (1), packing layer (2) and goes out gas-bearing formation (3)；Institute
State into the upper end of gas-bearing formation (1) and be provided with mixed gas import (10), lower end is provided with gas approach (13), and the mixed gas is entered
Mouth (10) is connected by pipeline with ammonia air mixing device (6), and the mixed gas import (10) is in tower away from packing layer
Side be provided with the deflector (11) of adjustable tilt angle, the gas approach (13) passes through pipeline and dust arrester (14)
Connection, the gas approach (13) are provided with the deflector (12) of adjustable tilt angle in tower close to the side of packing layer；
Described filler layer (2) is provided with pressure-bearing screen (18), and the filler of supported catalyst is placed with the pressure-bearing screen (18)
(8)；It is described go out gas-bearing formation (3) at the top of be provided with gas outlet (7), go out gas-bearing formation upper side be provided with circulation gas port (19), it is described go out
Gas port (7) is connected by pipeline with water washing device (16), and the circulation gas port (19) is entered by soak cycles pipeline (9) with flue gas
Mouth (13) connects, and is provided with valve (20) close to circulation gas port (19) place on the soak cycles pipeline (9), goes out in gas-bearing formation in outlet
Gas concentration monitoring instrument (21) is provided between mouth (7) and circulation gas port (19).
2. desulphurization denitration equipment according to claim 1, it is characterised in that described filler layer (2) shares 3-7 layers, close
Packed height accounts for the 85-90% of the bed stuffing height in one layer of packing layer of bottom of towe, the filler in one layer of packing layer of tower top
The 55-60% of the bed stuffing height is highly accounted for, packed height accounts for the 70-80% of the respectively packing layer in remaining packing layer.
3. desulphurization denitration equipment according to claim 1, it is characterised in that the movable end of the deflector (11) inclines
To tower top, the angle of itself and tower wall is 50 °~60 °.
4. desulphurization denitration equipment according to claim 1, it is characterised in that the movable end tendency tower of the deflector (12)
Bottom, the angle of itself and tower wall is 45 °~50 °.
5. desulphurization denitration equipment according to claim 1, it is characterised in that the gas concentration monitoring instrument (21) also has
The automatic control system for controlling gas outlet (7) to be opened and closed with valve (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720830317.7U CN206881514U (en) | 2017-07-10 | 2017-07-10 | A kind of coke oven flue gas desulphurization denitration equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720830317.7U CN206881514U (en) | 2017-07-10 | 2017-07-10 | A kind of coke oven flue gas desulphurization denitration equipment |
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| Publication Number | Publication Date |
|---|---|
| CN206881514U true CN206881514U (en) | 2018-01-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720830317.7U Active CN206881514U (en) | 2017-07-10 | 2017-07-10 | A kind of coke oven flue gas desulphurization denitration equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107344101A (en) * | 2017-07-10 | 2017-11-14 | 萍乡市华星化工设备填料有限公司 | Low-temp desulfurization denitrating catalyst and desulphurization denitration equipment and desulfurization and denitrification integral process |
| CN112410181A (en) * | 2020-11-13 | 2021-02-26 | 吉林农业大学 | High broken wall rate fermenting installation based on yeast culture |
-
2017
- 2017-07-10 CN CN201720830317.7U patent/CN206881514U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107344101A (en) * | 2017-07-10 | 2017-11-14 | 萍乡市华星化工设备填料有限公司 | Low-temp desulfurization denitrating catalyst and desulphurization denitration equipment and desulfurization and denitrification integral process |
| CN107344101B (en) * | 2017-07-10 | 2023-02-28 | 萍乡市华星环保工程技术有限公司 | Low-temperature desulfurization and denitrification catalyst, desulfurization and denitrification equipment and desulfurization and denitrification integrated process |
| CN112410181A (en) * | 2020-11-13 | 2021-02-26 | 吉林农业大学 | High broken wall rate fermenting installation based on yeast culture |
| CN112410181B (en) * | 2020-11-13 | 2023-03-24 | 吉林农业大学 | High broken wall rate fermenting installation based on yeast culture |
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Address after: 337022 Jiangxi city in Pingxiang Province, Xiangdong District, Pingxiang ceramics industry base (BU Zhen Da Po Cun Xiangdong District) Patentee after: Pingxiang Huaxing Environmental Protection Engineering Technology Co., Ltd. Address before: 337016 Industrial South Avenue of ceramic industry base in Pingxiang, Jiangxi Province Patentee before: PINGXIANG HUAXING CHEMICAL EQUIPMENT PACKING CO., LTD. |