CN205586830U - Denitration reactor entry ash bucket device - Google Patents
Denitration reactor entry ash bucket device Download PDFInfo
- Publication number
- CN205586830U CN205586830U CN201620268365.7U CN201620268365U CN205586830U CN 205586830 U CN205586830 U CN 205586830U CN 201620268365 U CN201620268365 U CN 201620268365U CN 205586830 U CN205586830 U CN 205586830U
- Authority
- CN
- China
- Prior art keywords
- reactor
- economizer
- denitration
- benitration
- ash bucket
- 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 - Fee Related
Links
- 238000006477 desulfuration reaction Methods 0.000 claims abstract description 32
- 230000023556 desulfurization Effects 0.000 claims abstract description 32
- 239000003054 catalyst Substances 0.000 claims abstract description 29
- 239000004744 fabric Substances 0.000 claims description 14
- 238000006243 chemical reaction Methods 0.000 claims description 9
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 8
- 239000000779 smoke Substances 0.000 claims description 6
- 229910021529 ammonia Inorganic materials 0.000 claims description 4
- 239000003245 coal Substances 0.000 claims description 4
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- 239000007789 gas Substances 0.000 abstract description 18
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 13
- 239000003546 flue gas Substances 0.000 abstract description 13
- 230000003628 erosive effect Effects 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000008187 granular material Substances 0.000 abstract description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 abstract 1
- 235000011941 Tilia x europaea Nutrition 0.000 abstract 1
- 239000004571 lime Substances 0.000 abstract 1
- 238000000926 separation method Methods 0.000 abstract 1
- 239000002956 ash Substances 0.000 description 30
- 235000019504 cigarettes Nutrition 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- BIGPRXCJEDHCLP-UHFFFAOYSA-N ammonium bisulfate Chemical compound [NH4+].OS([O-])(=O)=O BIGPRXCJEDHCLP-UHFFFAOYSA-N 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
Abstract
The utility model relates to a denitration reactor entry ash bucket device, economizer by -pass flue entry end is connected on one side of the economizer, the electric baffle door is established to economizer by -pass flue entry end, the economizer export, economizer by -pass flue exit end is connected with vertical gas pass, a horizontal gas pass is connected with the desulfurization reactor top, the 2nd horizontal gas pass bottom is equipped with denitration reactor entry ash bucket, desulfurization reactor is connected with desulfurization reactor exhaust pass the bottom, desulfurization reactor exhaust pass and air heater are connected, denitration reactor entry ash bucket is conical body, denitration reactor entry ash bucket bottom is equipped with the ash hole, denitration reactor entry ash bucket is equipped with the air intake, the air intake is connected with the 2nd horizontal gas pass, denitration reactor entry ash bucket inside is equipped with a plurality of drainage plates, the even staggered arrangement of drainage plate is on the air inlet airflow direction of air intake. The beneficial effect of the utility model: with the large granule lime -ash in flue gas separation, avoid causing obvious plug -hole and to the erosion of catalyst.
Description
Technical field
This utility model relates to a kind of denitration reactor inlet ash hopper device.
Background technology
Reactor inlet horizontal segment flue length less than 10m, by PM1 in flue gas, PM2.5, PM10,
The drag force EQUILIBRIUM CALCULATION FOR PROCESS of the various particle diameter fly ash granule such as PM100, PM500, it can be deduced that radius 500 μm
The sedimentation of following flying dust can be ignored, and the particle diameter of most power plant reactor inlet flying dust 99% is distributed in
Below 500 μm.
For larger particle lime-ash, if entering reactor to easily cause obvious plug-hole and to catalyst
Erosion, as reactor inlet does not has ash bucket, is not provided with ash bucket at reactor inlet, it is impossible to separate big
Grain ash, causes the blocking of catalyst.
Utility model content
For weak point present in the problems referred to above, this utility model provides a kind of denitration reactor inlet
Ash hopper device, separates the bulky grain lime-ash in flue gas, it is to avoid cause obvious plug-hole and to catalyst
Erosion.
For achieving the above object, this utility model provides a kind of denitration reactor inlet ash hopper device, including
Economizer and economizer bypass flue, the arrival end of described economizer bypass flue and the one of described economizer
Side connects, and the arrival end of described economizer bypass flue is provided with electric guard board door, and described economizer top sets
Economizer entrance, the side bottom described economizer is had to be provided with economizer exit, described economizer exit,
The port of export of described economizer bypass flue is connected with the vertical gas pass of desulfurization reactor gas approach, described
Vertical gas pass is provided with ammonia injection grid, and the first horizontal flue of described desulfurization reactor gas approach is with de-
The top of reaction of Salmon-Saxl device connects, and is provided with de-bottom the second horizontal flue of described desulfurization reactor gas approach
Nitre reactor inlet ash bucket, the bottom of described desulfurization reactor is connected with desulfurization reactor exhaust pass, institute
State desulfurization reactor exhaust pass to be connected with air preheater；
Wherein,
Described denitration reactor inlet ash bucket is conical trunk, described denitration reactor inlet hopper bottom
Being provided with ash hole, described denitration reactor inlet ash bucket is provided with air inlet, described air inlet and described second
Horizontal flue connects, and is provided with multiple drainage plate, described drainage plate inside described denitration reactor inlet ash bucket
Uniformly interlaced arrangement is on the air intake airflow direction of air inlet.
Improving further as this utility model, the upper and lower interlaced arrangement of described drainage plate becomes wavy.
Improving further as this utility model, described desulfurization reactor includes:
Casing in Benitration reactor, it is cuboid-type, and in described Benitration reactor, casing is arranged on vertically
On direction, in described Benitration reactor casing be provided with from top to bottom deflector, the first catalyst layer,
Two catalyst layers and the 3rd catalyst layer, described deflector is positioned at the top of casing in described Benitration reactor,
Described 3rd catalyst layer is positioned at the bottom of casing in described Benitration reactor；
Benitration reactor upper box, it is incline structure, and described Benitration reactor upper box is arranged on described
The top of casing in Benitration reactor, and be connected with casing in described Benitration reactor, described denitration reaction
Being the smoke inlet of Benitration reactor device in the horizontal direction of device upper box, described smoke inlet is with described
First horizontal flue connects, the first hang plate of described Benitration reactor upper box and the included angle A of horizontal direction
It is respectively 150 ° and 30 ° with included angle B；
Benitration reactor lower box, it is incline structure, and described Benitration reactor lower box is arranged on described
The lower section of casing in Benitration reactor, and be connected with casing in described Benitration reactor, described denitration reaction
Being the exhanst gas outlet of Benitration reactor device in the vertical direction of device lower box, described exhanst gas outlet is with described
Desulfurization reactor exhaust pass connects, the second hang plate of described Benitration reactor lower box and vertical direction
Angle C and angle D be respectively 109 ° and 71 °.
Improving further as this utility model, the surface of described first catalyst layer is provided with the first screen cloth
Flat board, the surface of described second catalyst layer is provided with the second screen cloth flat board, described 3rd catalyst layer
Surface is provided with the 3rd screen cloth flat board.
The beneficial effects of the utility model are:
1, a part of for economizer high temperature section high-temperature flue gas is introduced Benitration reactor SCR inlet flue and low temperature
Flue gas mixes, and makes the flue-gas temperature of SCR reactor inlet maintain the optimal reaction temperature needed for denitration
In the range of 300～420 DEG C, it is ensured that necessary denitration efficiency and suppression sulfate, the generation of hydrogen sulfate ammonia；
2, Benitration reactor upper box and Benitration reactor lower box are designed as incline structure, can make flue gas
Speed is more uniform；
3, it is provided with screen cloth flat board, is placed on catalyst surface, can prevent bulky grain from falling into catalyst, also
Flue gas can be carried out rectification；
4, arranging of deflector can make flue gas flow field keep uniform in relatively short distance at right angle turn；
5, the setting of ash bucket, separates the bulky grain lime-ash in flue gas, it is to avoid cause obvious plug-hole and right
The erosion of catalyst.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model a kind of denitration reactor inlet ash hopper device.
In figure:
1, desulfurization reactor；11, electric guard board door；12, the first hang plate；13, the second hang plate；
21, the first catalyst layer；22, the second catalyst layer；23, the 3rd catalyst layer；3, deflector；4、
Desulfurization reactor gas approach；41, the first horizontal flue；42, the second horizontal flue；43, vertical cigarette
Road；5, desulfurization reactor exhaust pass；51, the first screen cloth flat board；52, the second screen cloth flat board；53、
3rd screen cloth flat board；6, ammonia injection grid；7, economizer bypass flue；8, economizer；81, coal is saved
Device entrance；82, economizer exit；9, denitration reactor inlet ash bucket；91, ash hole.
Detailed description of the invention
As it is shown in figure 1, a kind of denitration reactor inlet ash hopper device of this utility model embodiment, including
The side of economizer 8 and economizer bypass flue 7, the arrival end of economizer bypass flue 7 and economizer 8
Connecting, the arrival end of economizer bypass flue 7 is provided with electric guard board door 11, and economizer 8 top is provided with province
Coal device entrance 81, the side bottom economizer 8 is provided with economizer exit 82, economizer exit 82, province's coal
The port of export of device bypass flue 7 is connected with the vertical gas pass 43 of desulfurization reactor gas approach 4, vertical cigarette
Road 43 is provided with ammonia injection grid 6, the first horizontal flue 41 and desulfurization of desulfurization reactor gas approach 4
The top of reactor 1 connects, and is provided with de-bottom the second horizontal flue 42 of desulfurization reactor gas approach 4
Nitre reactor inlet ash bucket 9, the bottom of desulfurization reactor 1 is connected with desulfurization reactor exhaust pass 5, de-
Reaction of Salmon-Saxl device exhaust pass 5 is connected with air preheater.
Wherein, denitration reactor inlet ash bucket 9 is conical trunk, denitration reactor inlet ash bucket 9 end
Portion is provided with ash hole 91, and denitration reactor inlet ash bucket 9 is provided with air inlet, air inlet and the second horizontal cigarette
Road 42 connects, and denitration reactor inlet ash bucket 9 is internal is provided with multiple drainage plate, and drainage plate uniformly interlocks cloth
Put on the air intake airflow direction of air inlet.Further, drainage plate may be disposed to the wave interlocked up and down
Shape.The quantity of drainage plate can determine according to the practical situation of the size of ash bucket 9 and dedusting and adjust.When
After flue gas enters air inlet entrance ash bucket 9, along with moving ahead of air-flow, flue gas is dammed by drainage plate, flue gas
In bulky grain lime-ash, dust because of velocity attitude moment change in landing trend, go out from ash hole 91.
Desulfurization reactor includes:
Casing in Benitration reactor, it is cuboid-type, and in Benitration reactor, casing is arranged on vertical direction
On, in Benitration reactor, casing is provided with deflector the 3, first catalyst layer 21 from top to bottom, second urges
Agent layer 22 and the 3rd catalyst layer 23, deflector 3 is positioned at the top of casing in Benitration reactor, and the 3rd
Catalyst layer 23 is positioned at the bottom of casing in Benitration reactor, and the surface of the first catalyst layer 21 is provided with
First screen cloth flat board 51, the surface of the second catalyst layer 22 is provided with the second screen cloth flat board 52, and the 3rd urges
The surface of agent layer 23 is provided with the 3rd screen cloth flat board 53.
Benitration reactor upper box, it is incline structure, and Benitration reactor upper box is arranged on denitration reaction
The top of casing in device, and be connected with casing in Benitration reactor, the level side of Benitration reactor upper box
Being upwards the smoke inlet of Benitration reactor device, smoke inlet and the first horizontal flue 41 connect, denitration
First hang plate 12 of reactor upper box and the included angle A of horizontal direction and included angle B be respectively 150 ° and
30°。
Benitration reactor lower box, it is incline structure, and Benitration reactor lower box is arranged on denitration reaction
The lower section of casing in device, and be connected with casing in Benitration reactor, the Vertical Square of Benitration reactor lower box
Being upwards the exhanst gas outlet of Benitration reactor device, exhanst gas outlet is connected with desulfurization reactor exhaust pass 5,
Second hang plate 13 of Benitration reactor lower box is respectively 109 ° with the angle C and angle D of vertical direction
With 71 °.
The foregoing is only preferred embodiment of the present utility model, be not limited to this utility model,
For a person skilled in the art, this utility model can have various modifications and variations.All in this reality
Within novel spirit and principle, any modification, equivalent substitution and improvement etc. made, all should comprise
Within protection domain of the present utility model.
Claims (4)
1. a denitration reactor inlet ash hopper device, it is characterised in that include economizer (8) and save
Coal device bypass flue (7), the arrival end of described economizer bypass flue (7) and described economizer (8)
Side connect, the arrival end of described economizer bypass flue (7) is provided with electric guard board door (11), institute
Stating economizer (8) top and be provided with economizer entrance (81), the side of described economizer (8) bottom is provided with
Economizer exit (82), described economizer exit (82), the outlet of described economizer bypass flue (7)
End is connected with the vertical gas pass (43) of desulfurization reactor gas approach (4), described vertical gas pass (43)
It is provided with ammonia injection grid (6), first horizontal flue (41) of described desulfurization reactor gas approach (4)
It is connected with the top of desulfurization reactor (1), the second level of described desulfurization reactor gas approach (4)
Flue (42) bottom is provided with denitration reactor inlet ash bucket (9), the bottom of described desulfurization reactor (1)
Being connected with desulfurization reactor exhaust pass (5), described desulfurization reactor exhaust pass (5) is pre-with air
Hot device connects；
Wherein,
Described denitration reactor inlet ash bucket (9) is conical trunk, described denitration reactor inlet ash bucket
(9) bottom is provided with ash hole (91), and described denitration reactor inlet ash bucket (9) is provided with air inlet, institute
State air inlet to be connected with described second horizontal flue (42), in described denitration reactor inlet ash bucket (9)
Portion is provided with multiple drainage plate, and the uniform interlaced arrangement of described drainage plate is on the air intake airflow direction of air inlet.
Denitration reactor inlet ash hopper device the most according to claim 1, it is characterised in that described
The upper and lower interlaced arrangement of drainage plate becomes wavy.
Denitration reactor inlet ash hopper device the most according to claim 1, it is characterised in that described
Desulfurization reactor includes:
Casing in Benitration reactor, it is cuboid-type, and in described Benitration reactor, casing is arranged on vertically
On direction, in described Benitration reactor, casing is provided with deflector (3), the first catalyst layer from top to bottom
(21), the second catalyst layer (22) and the 3rd catalyst layer (23), described deflector (3) is positioned at institute
Stating the top of casing in Benitration reactor, described 3rd catalyst layer (23) is positioned at described Benitration reactor
The bottom of middle casing；
Benitration reactor upper box, it is incline structure, and described Benitration reactor upper box is arranged on described
The top of casing in Benitration reactor, and be connected with casing in described Benitration reactor, described denitration reaction
Being the smoke inlet of Benitration reactor device in the horizontal direction of device upper box, described smoke inlet is with described
First horizontal flue (41) connects, first hang plate (12) of described Benitration reactor upper box and water
Square to included angle A and included angle B be respectively 150 ° and 30 °；
Benitration reactor lower box, it is incline structure, and described Benitration reactor lower box is arranged on described
The lower section of casing in Benitration reactor, and be connected with casing in described Benitration reactor, described denitration reaction
Being the exhanst gas outlet of Benitration reactor device in the vertical direction of device lower box, described exhanst gas outlet is with described
Desulfurization reactor exhaust pass (5) connects, second hang plate (13) of described Benitration reactor lower box
It is respectively 109 ° and 71 ° with the angle C and angle D of vertical direction.
Denitration reactor inlet ash hopper device the most according to claim 3, it is characterised in that described
The surface of the first catalyst layer (21) is provided with the first screen cloth flat board (51), described second catalyst layer (22)
Surface be provided with the second screen cloth flat board (52), the surface of described 3rd catalyst layer (23) is provided with
Three screen cloth flat boards (53).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620268365.7U CN205586830U (en) | 2016-03-31 | 2016-03-31 | Denitration reactor entry ash bucket device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620268365.7U CN205586830U (en) | 2016-03-31 | 2016-03-31 | Denitration reactor entry ash bucket device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205586830U true CN205586830U (en) | 2016-09-21 |
Family
ID=56922587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620268365.7U Expired - Fee Related CN205586830U (en) | 2016-03-31 | 2016-03-31 | Denitration reactor entry ash bucket device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205586830U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108224464A (en) * | 2018-02-27 | 2018-06-29 | 西安西热节能技术有限公司 | It is a kind of prevent coal-burning boiler denitration be transformed after tail portion dust deposit in flue device |
-
2016
- 2016-03-31 CN CN201620268365.7U patent/CN205586830U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108224464A (en) * | 2018-02-27 | 2018-06-29 | 西安西热节能技术有限公司 | It is a kind of prevent coal-burning boiler denitration be transformed after tail portion dust deposit in flue device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160921 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |