CN220879255U - Multistage nozzle boosting type lime hydrate dry powder spray gun and dry reaction tower - Google Patents
Multistage nozzle boosting type lime hydrate dry powder spray gun and dry reaction tower Download PDFInfo
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- CN220879255U CN220879255U CN202322153017.8U CN202322153017U CN220879255U CN 220879255 U CN220879255 U CN 220879255U CN 202322153017 U CN202322153017 U CN 202322153017U CN 220879255 U CN220879255 U CN 220879255U
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- dry powder
- spray gun
- pipe
- flange
- powder spray
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- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 title claims abstract description 69
- 229940098458 powder spray Drugs 0.000 title claims abstract description 50
- 239000007921 spray Substances 0.000 claims abstract description 48
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims abstract description 45
- 239000000920 calcium hydroxide Substances 0.000 claims abstract description 45
- 235000011116 calcium hydroxide Nutrition 0.000 claims abstract description 43
- 239000000843 powder Substances 0.000 claims abstract description 29
- 238000007789 sealing Methods 0.000 claims description 9
- 239000003795 chemical substances by application Substances 0.000 claims description 7
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 10
- 239000003546 flue gas Substances 0.000 abstract description 10
- 235000008733 Citrus aurantifolia Nutrition 0.000 abstract description 9
- 235000011941 Tilia x europaea Nutrition 0.000 abstract description 9
- 239000004571 lime Substances 0.000 abstract description 9
- 239000002253 acid Substances 0.000 abstract description 5
- 239000007789 gas Substances 0.000 abstract description 5
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 238000005507 spraying Methods 0.000 abstract description 2
- 238000002347 injection Methods 0.000 description 6
- 239000007924 injection Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 238000000746 purification Methods 0.000 description 3
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 2
- 238000004056 waste incineration Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Landscapes
- Treating Waste Gases (AREA)
Abstract
The utility model provides a multistage nozzle boosting type slaked lime dry powder spray gun and a dry reaction tower, wherein the multistage nozzle boosting type slaked lime dry powder spray gun comprises a spray gun main pipe, an air inlet end of the spray gun main pipe is connected with a boosting fan pipe, at least two inclined slaked lime dry powder spray pipes are connected to the side wall of the spray gun main pipe, and an included angle between the slaked lime dry powder spray pipe and the air inlet end of the spray gun main pipe is 15-45 degrees. According to the utility model, the slaked lime dry powder spray pipe is transferred to the side surface of the spray gun main pipe, and the spray gun main pipe is directly connected with the boosting fan pipe, so that boosting air can not only increase boosting force at the tail end of dry powder conveying, solve the problem of tail end force release, but also increase disturbance, ensure that slaked lime dry powder and flue gas are fully mixed, and improve reaction efficiency; the lime hydrate dry powder spray is changed from the original single spray pipe form into a plurality of spray pipes, and can be sprayed independently or simultaneously, so that the lime hydrate dry powder spray not only solves the problem of lime spraying in a vacuum period in a pressure holding stage, but also can ensure enough lime conveying quantity, and reduces environmental protection risks when the acid gas index suddenly increases.
Description
Technical Field
The utility model relates to a flue gas purification treatment system of a waste incineration power plant, in particular to a multistage nozzle boosting type lime hydrate dry powder spray gun and a dry reaction tower.
Background
The flue gas purification treatment system of the waste incineration power plant adopts the process that: SNCR in-furnace denitration, cyclone pre-dedusting, IDR semi-dry method, baking soda dry powder injection, slaked lime dry powder injection, active carbon injection, cloth bag dedusting and SCR out-of-furnace denitration. The slaked lime dry powder injection system is characterized in that compressed air is used for conveying slaked lime into a dry reaction tower, and the slaked lime and acid gases (SO 2, HCL and the like) in the flue gas react to reduce emission indexes, and the slaked lime dry powder injection system has the following problems: 1. because the pneumatic conveying needs to carry out pressure holding in advance, no slaked lime dry powder is added in the pressure holding period, and the flue gas index fluctuation is easy to cause; 2. the lime hydrate dry powder conveying pipeline is long, the conveying time is longer, and the pressure at the conveying tail end is insufficient; 3. the diameter of the lime hydrate dry powder conveying pipeline is smaller (DN 40), and the dry powder conveying amount is insufficient after one-time pressure holding.
The problems existing in the slaked lime dry powder injection system easily cause the acid gas in the flue gas to exceed the standard, and the flue gas purification treatment system does not adopt a semi-dry method (rotary atomizer), so that the deacidification effect cannot be completely ensured, the pressure of the flue gas emission index is high in the operation process, and the environmental protection risk is high.
Disclosure of utility model
The utility model provides a multistage nozzle boosting type lime hydrate dry powder spray gun and a dry reaction tower, which solve the problems of pressure holding and powder adding interruption, insufficient conveying end pressure, insufficient dry powder conveying amount and the like of a lime dry powder spray system in the prior art.
The technical scheme of the utility model is realized as follows:
The utility model firstly provides a multistage nozzle boosting type slaked lime dry powder spray gun, which comprises a spray gun main pipe, wherein an air inlet end of the spray gun main pipe is connected with a boosting fan pipe, an air outlet end of the spray gun main pipe is fixedly connected with a flange I, at least two inclined slaked lime dry powder spray pipes are fixedly connected to the side wall of the spray gun main pipe, and an included angle between the slaked lime dry powder spray pipes and the air inlet end of the spray gun main pipe is 15-45 degrees.
Further, the included angle between the slaked lime dry powder spray pipe and the air inlet end of the spray gun main pipe is 15 degrees, 30 degrees or 45 degrees.
Further, fixedly connected with ring flange II on the air inlet end of spray gun main pipe still includes first connecting pipe, and first connecting pipe includes connecting pipe body I and ring flange III, and ring flange III fixed connection is on the one end of connecting pipe body, and ring flange II and ring flange III pass through a plurality of bolt I and connect.
Further, a sealing gasket I is clamped between the flange II and the flange III.
Further, the other end of the first connecting pipe body is fixedly connected with a boosting fan pipe, and the other end of the boosting fan pipe is connected with a boosting fan.
Further, the inlet end fixedly connected with ring flange IV of slaked lime dry powder spray tube still includes the second connecting pipe, and the second connecting pipe includes connecting pipe body II and ring flange V, and ring flange IV and ring flange V pass through a plurality of bolt II and connect.
Further, a sealing gasket II is clamped between the flange IV and the flange V.
Further, the other end of the second connecting pipe body is fixedly connected with a slaked lime dry powder inlet pipe.
The utility model further provides a dry reaction tower, which comprises a tower body, wherein an inclined treating agent inlet pipe is fixedly connected to the side surface of the tower body, a flange plate VI is fixedly connected to the inlet end of the treating agent inlet pipe, the dry reaction tower comprises the multistage nozzle boosting type slaked lime dry powder spray gun, and the flange plate I and the flange plate VI are connected through a plurality of bolts III.
Further, a sealing gasket II is clamped between the flange I and the flange VI.
The utility model has the beneficial effects that: the utility model upgrades on the basis of the common slaked lime dry powder spray gun: 1. the slaked lime dry powder spray pipe is transferred to the side surface of the spray gun main pipe, the spray gun main pipe is directly connected with the boosting fan pipe, boosting air can not only increase boosting force at the tail end of dry powder conveying, solve the problem of tail end force release, but also increase disturbance, ensure that slaked lime dry powder and flue gas are fully mixed, and improve the reaction efficiency of slaked lime dry powder; 2. the lime hydrate dry powder spraying is changed from the original single spray pipe form into a plurality of spray pipes, the spray pipes can independently spray lime hydrate dry powder and can spray lime hydrate dry powder at the same time, the problem that lime is sprayed into a vacuum period in a pressure holding stage is solved, the plurality of spray pipes can ensure enough lime conveying quantity, and when an acid gas index suddenly increases, the environment-friendly risk is reduced.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic front view of a multi-stage nozzle boost lime hydrate dry powder spray gun;
FIG. 2 is a schematic perspective view of a multi-stage nozzle boost lime hydrate dry powder spray gun;
FIG. 3 is a schematic structural view of a dry reaction tower.
In the figure: the device comprises a 1-spray gun main pipe, a 11-flange I, a 12-flange II, a 2-booster fan pipe, a 3-slaked lime dry powder spray pipe, a 31-flange IV, a 4-first connecting pipe, a 41-connecting pipe body I, a 42-flange III, a 5-second connecting pipe, a 51-connecting pipe body II, a 52-flange V, a 6-slaked lime dry powder inlet pipe, a 7-tower body, an 8-treating agent inlet pipe, a 81-flange VI, an A-multistage nozzle booster slaked lime dry powder spray gun and a B-dry reaction tower.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Example 1
Referring to fig. 1-2, a multistage nozzle boosting type slaked lime dry powder spray gun A comprises a spray gun main pipe 1, wherein an air inlet end of the spray gun main pipe 1 is connected with a boosting fan pipe 2, an air outlet end of the spray gun main pipe 1 is fixedly connected with a flange I11, at least two inclined slaked lime dry powder spray pipes 3 are fixedly connected to the side wall of the spray gun main pipe 1, and an included angle between the slaked lime dry powder spray pipes 3 and the air inlet end of the spray gun main pipe 1 is 15-45 degrees.
As a further embodiment, the included angle between the slaked lime dry powder spray pipe 3 and the air inlet end of the main pipe 1 of the spray gun is preferably 15 degrees, 30 degrees or 45 degrees, and the number of the slaked lime dry powder spray pipes 3 can be 2, 3, 4 or more.
As a further embodiment, the air inlet end of the main pipe 1 of the spray gun is fixedly connected with a flange plate II12, the spray gun further comprises a first connecting pipe 4, the first connecting pipe 4 comprises a connecting pipe body I41 and a flange plate III42, the flange plate III42 is fixedly connected to one end of the connecting pipe body 41, the flange plate II12 and the flange plate III42 are connected through a plurality of bolts I, and a sealing gasket I is clamped between the flange plate II12 and the flange plate III 42. The other end of the first connecting pipe body 4 is fixedly connected with a boosting fan pipe 2, the other end of the boosting fan pipe 2 is connected with a boosting fan (not shown), and the boosting fan pipe 2 can be a rubber hose.
As a further embodiment, the inlet end of the slaked lime dry powder spray pipe 3 is fixedly connected with a flange IV31, and further comprises a second connecting pipe 5, wherein the second connecting pipe 5 comprises a connecting pipe body II51 and a flange V52, and the flange IV31 and the flange V52 are connected through a plurality of bolts II. A sealing gasket II is sandwiched between the flange IV31 and the flange V52. The other end of the second connecting pipe body 5 is fixedly connected with a slaked lime dry powder inlet pipe 6, and the slaked lime dry powder inlet pipe 6 can be a rubber hose.
The utility model upgrades on the basis of the common slaked lime dry powder spray gun: 1. the slaked lime dry powder spray pipe 3 is transferred to the side surface of the spray gun main pipe, the spray gun main pipe 1 is directly connected with a boosting fan pipe, boosting air can not only increase boosting force at the tail end of dry powder conveying, solve the problem of tail end force release, but also increase disturbance, ensure that slaked lime dry powder and flue gas are fully mixed, and improve the reaction efficiency of slaked lime dry powder; 2. the lime hydrate dry powder spray pipe 3 is changed from the original single spray pipe form into a plurality of spray pipes, the lime hydrate dry powder can be sprayed into the spray pipes independently, and the lime hydrate dry powder can be sprayed into the spray pipes simultaneously, so that the problem that lime is sprayed into a vacuum period in a pressure holding stage is solved, the plurality of spray pipes can also ensure enough lime conveying capacity, and when an acid gas index suddenly increases, the environment-friendly risk is reduced.
Example 2
Referring to fig. 3, a dry reaction tower B comprises a tower body 7, an inclined treating agent inlet pipe 8 is fixedly connected to the side surface of the tower body 7, a flange plate VI81 is fixedly connected to the inlet end of the treating agent inlet pipe 8, the dry lime powder spray gun a comprises the multistage nozzle boosting type lime powder spray gun a, the flange plate I11 is connected with the flange plate VI81 through a plurality of bolts III, and a sealing gasket II is clamped between the flange plate I11 and the flange plate VI 81.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.
Claims (10)
1. A multistage spout boosting formula slaked lime dry powder spray gun, its characterized in that: the spray gun comprises a spray gun main pipe, wherein an air inlet end of the spray gun main pipe is connected with a booster fan pipe, an air outlet end of the spray gun main pipe is fixedly connected with a flange I, at least two inclined slaked lime dry powder spray pipes are fixedly connected to the side wall of the spray gun main pipe, and an included angle between the slaked lime dry powder spray pipes and the air inlet end of the spray gun main pipe is 15-45 degrees.
2. The multi-stage nozzle boost lime hydrate dry powder spray gun of claim 1, wherein: the included angle between the slaked lime dry powder spray pipe and the air inlet end of the spray gun main pipe is 15 degrees, 30 degrees or 45 degrees.
3. The multi-stage nozzle boost lime hydrate dry powder spray gun of claim 1, wherein: the air inlet end of the spray gun main pipe is fixedly connected with a flange II, the spray gun main pipe further comprises a first connecting pipe, the first connecting pipe comprises a connecting pipe body I and a flange III, the flange III is fixedly connected to one end of the connecting pipe body, and the flange II and the flange III are connected through a plurality of bolts I.
4. A multi-stage nozzle boost lime hydrate dry powder spray gun as claimed in claim 3, wherein: and a sealing gasket I is clamped between the flange II and the flange III.
5. The multi-stage nozzle boost lime hydrate dry powder spray gun of claim 4, wherein: the other end of the first connecting pipe body is fixedly connected with a boosting fan pipe, and the other end of the boosting fan pipe is connected with a boosting fan.
6. The multi-stage nozzle boost lime hydrate dry powder spray gun of claim 1, wherein: the inlet end fixedly connected with ring flange IV of slaked lime dry powder spray tube still includes the second connecting pipe, and the second connecting pipe includes connecting pipe body II and ring flange V, and ring flange IV and ring flange V pass through a plurality of bolt II and connect.
7. The multi-stage nozzle boost lime hydrate dry powder spray gun of claim 6, wherein: and a sealing gasket II is clamped between the flange IV and the flange V.
8. The multi-stage nozzle boost lime hydrate dry powder spray gun of claim 7, wherein: and the other end of the second connecting pipe body is fixedly connected with a slaked lime dry powder inlet pipe.
9. Dry reaction tower, its characterized in that: the multi-stage nozzle boosting type lime hydrate dry powder spray gun comprises a tower body, wherein an inclined treating agent inlet pipe is fixedly connected to the side face of the tower body, a flange plate VI is fixedly connected to the inlet end of the treating agent inlet pipe, and the multi-stage nozzle boosting type lime hydrate dry powder spray gun comprises a multi-stage nozzle boosting type lime hydrate dry powder spray gun according to any one of claims 1-8, wherein the flange plate I and the flange plate VI are connected through a plurality of bolts III.
10. The dry reaction column of claim 9, wherein: and a sealing gasket II is clamped between the flange I and the flange VI.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322153017.8U CN220879255U (en) | 2023-08-11 | 2023-08-11 | Multistage nozzle boosting type lime hydrate dry powder spray gun and dry reaction tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322153017.8U CN220879255U (en) | 2023-08-11 | 2023-08-11 | Multistage nozzle boosting type lime hydrate dry powder spray gun and dry reaction tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220879255U true CN220879255U (en) | 2024-05-03 |
Family
ID=90878614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322153017.8U Active CN220879255U (en) | 2023-08-11 | 2023-08-11 | Multistage nozzle boosting type lime hydrate dry powder spray gun and dry reaction tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220879255U (en) |
-
2023
- 2023-08-11 CN CN202322153017.8U patent/CN220879255U/en active Active
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