CN220657015U - Anti-dust-accumulation flue suitable for tail gas treatment of blended burned and aged garbage - Google Patents
Anti-dust-accumulation flue suitable for tail gas treatment of blended burned and aged garbage Download PDFInfo
- Publication number
- CN220657015U CN220657015U CN202321952595.1U CN202321952595U CN220657015U CN 220657015 U CN220657015 U CN 220657015U CN 202321952595 U CN202321952595 U CN 202321952595U CN 220657015 U CN220657015 U CN 220657015U
- Authority
- CN
- China
- Prior art keywords
- flue
- ash
- tail gas
- gas treatment
- deposition preventing
- 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.)
- Active
Links
- 238000009825 accumulation Methods 0.000 title claims description 20
- 230000008021 deposition Effects 0.000 claims abstract description 35
- 239000000428 dust Substances 0.000 claims abstract description 35
- 239000007789 gas Substances 0.000 claims abstract description 32
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 29
- 239000003546 flue gas Substances 0.000 claims abstract description 29
- 239000007921 spray Substances 0.000 claims abstract description 21
- 230000002265 prevention Effects 0.000 claims abstract description 16
- 239000002699 waste material Substances 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 5
- 239000000779 smoke Substances 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 abstract description 6
- 238000004062 sedimentation Methods 0.000 abstract description 5
- 239000002956 ash Substances 0.000 abstract 7
- 239000010881 fly ash Substances 0.000 abstract 1
- 239000002245 particle Substances 0.000 description 7
- 239000002253 acid Substances 0.000 description 4
- 239000002002 slurry Substances 0.000 description 4
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 3
- 235000011941 Tilia x europaea Nutrition 0.000 description 3
- 239000004571 lime Substances 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 230000009466 transformation Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 2
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 2
- 235000011116 calcium hydroxide Nutrition 0.000 description 2
- 239000000920 calcium hydroxide Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 230000035882 stress Effects 0.000 description 2
- HGUFODBRKLSHSI-UHFFFAOYSA-N 2,3,7,8-tetrachloro-dibenzo-p-dioxin Chemical compound O1C2=CC(Cl)=C(Cl)C=C2OC2=C1C=C(Cl)C(Cl)=C2 HGUFODBRKLSHSI-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000003500 flue dust Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000004056 waste incineration Methods 0.000 description 1
Landscapes
- Treating Waste Gases (AREA)
Abstract
The utility model provides an ash deposition preventing flue suitable for tail gas treatment of blended burned and aged garbage, and belongs to the field of household garbage treatment equipment. The ash deposition preventing flue suitable for the tail gas treatment of the blended burned and aged garbage comprises a deacidification tower and a bag type dust remover, wherein the deacidification tower is communicated with the bag type dust remover through the ash deposition preventing flue; the flue gas flows through the deacidification tower and then is conveyed to the bag type dust collector through an ash deposit prevention flue, and a dry method spray gun is arranged on the ash deposit prevention flue. The ash deposition preventing flue suitable for the tail gas treatment of the blended burned and aged waste is provided with the venturi tube additionally arranged at the position of the communicating flue from the deacidification tower to the dust remover, and the flue gas is accelerated and decompressed at the throat, so that the full mixing of the deacidification agent and the flue gas is facilitated, the deacidification efficiency is improved, the fly ash sedimentation is reduced, and ash deposition is avoided.
Description
Technical Field
The utility model provides an ash deposition preventing flue suitable for tail gas treatment of blended burned and aged garbage, and belongs to the field of household garbage treatment equipment.
Background
The stale garbage is greatly different from the original garbage in composition, the kitchen garbage in the original garbage has the largest proportion, and the paper rubber plastic and the like have extremely small ash content. Compared with the original garbage, the content of rubber and plastic and ash in the aged garbage is higher, so that the original dust concentration in the flue gas is increased when the aged garbage is mixed and burned, the HCl concentration in the flue gas is obviously increased due to the rubber and plastic being a high-chlorine compound, and in order to ensure that the flue gas is discharged up to the standard, the spraying amount of lime slurry is increased in the deacidification tower, even the lime slurry is sprayed excessively, so that the flue gas and dust concentration at the outlet flue of the deacidification tower is obviously improved, and the phenomenon of ash accumulation and blockage is more easy to occur.
In the existing flue gas purification system, a communicating flue from a deacidification tower to a dust remover is a horizontal outlet flue, and an active carbon spray gun and a dry spray gun are arranged for removing dioxin and assisting deacidification. After the aged garbage is mixed, the original dust concentration in the flue gas is increased, the concentration of acid gas, especially HCl, is increased, and the consumption of deacidifying agent is increased. In the horizontal flue, because of the gravity sedimentation effect, larger dust particles can deviate from a flue gas streamline to move downwards, and the deposition of the particles in the high-dust-content flue gas is aggravated under the original flow rate, particularly the spray gun and the nearby area, so that the dust deposit and the blockage at the horizontal flue at the outlet of the deacidification tower and the air inlet of the bag type dust collector can cause the shutdown. Meanwhile, due to restriction of jet diffusion angle, the medicament and the flue gas cannot be fully mixed to influence deacidification efficiency.
Disclosure of Invention
In order to promote the cost reduction, synergy and continuous stable operation of a waste incineration power plant, the utility model provides an ash deposition prevention flue suitable for the tail gas treatment of the mixed burning and ageing waste, a venturi is additionally arranged at the position of a communication flue from a deacidification tower to a dust remover, and a spray gun is arranged at the inlet end of the venturi, so that the speed and the pressure of the flue gas are increased and reduced at a throat opening, the full mixing of a medicament and the flue gas is facilitated, and the deacidification efficiency is improved; meanwhile, as the flow speed of the flue gas is increased and the sedimentation distance of the particulate matters is increased, the problems of dust accumulation and blockage of a flue and an inlet of a bag type dust collector after the aged garbage is mixed and burned are avoided.
The utility model adopts the following technical scheme:
the utility model relates to an anti-dust-accumulation flue suitable for tail gas treatment of blended burned and aged garbage, which comprises a deacidification tower and a bag type dust remover, wherein the deacidification tower is communicated with the bag type dust remover through the anti-dust-accumulation flue; the flue gas flows through the deacidification tower and then is conveyed to the bag type dust collector through an ash deposit prevention flue, and a dry method spray gun is arranged on the ash deposit prevention flue.
The utility model relates to an anti-dust-accumulation flue suitable for tail gas treatment of blended burned and aged garbage, which comprises an outlet flue, a venturi tube section and a connecting section; a venturi section is arranged between the outlet flue and the connecting section, and the outlet flue, the venturi section and the connecting section form an integrated flue structure; the outlet flue of the ash deposit prevention flue extends into the cone bucket section of the deacidification tower, and the connecting section of the ash deposit prevention flue is connected with the bag type dust remover; the dry spray gun extends into the outlet flue along the radial direction of the outlet flue.
The central axis of the nozzle of the dry spray gun is coincident with the central axis of the ash deposition preventing flue.
The ash deposition preventing flue suitable for the tail gas treatment of the blended burned and aged garbage is characterized in that an ash deposition preventing flue outlet flue positioned in a cone bucket section of a deacidification tower extends to the axial center line of the cone bucket section.
The utility model relates to an anti-dust-accumulation flue suitable for tail gas treatment of blended burned and aged garbage, wherein a dry spray gun faces to the inlet end of the venturi tube end of the anti-dust-accumulation flue.
The utility model relates to an ash accumulation preventing flue suitable for tail gas treatment of blended burned and aged garbage, wherein an expansion joint is arranged at the joint of a joint section of the ash accumulation preventing flue and a bag type dust collector.
The utility model relates to an ash deposition preventing flue suitable for tail gas treatment of blended burned and aged garbage, wherein a temperature sensor is arranged on the ash deposition preventing flue.
The ash deposition preventing flue suitable for the tail gas treatment of the blended burned and aged garbage has the smoke temperature output from the ash deposition preventing flue not lower than 150 ℃.
Compared with the prior art, the utility model has the following beneficial effects:
the ash deposition preventing flue suitable for the tail gas treatment of the blended burned and aged waste is provided with the venturi tube at the position of the communicating flue from the deacidification tower to the dust remover, and the flue gas is accelerated and decompressed at the throat, so that the full mixing of the deacidification agent and the flue gas is facilitated, and the deacidification efficiency is improved.
The ash deposition preventing flue suitable for the tail gas treatment of the blended and burned waste is suitable for high-dust flue gas of the blended and burned waste, and the ash deposition preventing flue is reduced in the flue due to the improvement of the flow rate and the increase of the sedimentation distance of particles, particularly in a spray gun and a nearby area, so that the risks of ash deposition blocking and furnace shutdown of an outlet flue can be reduced.
The anti-dust-accumulation flue suitable for the tail gas treatment of the blended burned and aged garbage is provided, the outlet flue of the anti-dust-accumulation flue is positioned at the cone bucket section of the deacidification tower, the inlet of the flue is overlapped with the central line of the cone bucket, and the flue gas in the deacidification tower can flow uniformly after entering the flue.
The ash deposition preventing flue suitable for tail gas treatment of the blended burned and aged garbage is provided by the utility model, wherein the dry method spray gun is arranged at the inlet end of the venturi tube, the spray gun opening is positioned on the central line of the outlet flue, and the uniformity of the deacidification agent on the flow section is ensured.
The ash deposition preventing flue suitable for the tail gas treatment of the blended burned and aged garbage, provided by the utility model, has the advantages that the temperature sensor arranged on the ash deposition preventing flue can prevent the bag from being pasted by the dewing, and the outlet flue is connected with the expansion joint close to the dust remover side so as to buffer deformation and stress caused by temperature change.
The ash deposition preventing flue suitable for the tail gas treatment of the blended burned and aged garbage has the advantages of simple structure, low transformation cost and short transformation period, and is suitable for transformation of the existing garbage incineration power plant.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a top view of the ash accumulation prevention flue of the present utility model.
In the figure, the device comprises a 1-deacidification tower, a 2-outlet flue, a 3-expansion joint, a 4-bag type dust collector, a 5-temperature sensor interface, a 6-dry spray gun, a 7-venturi tube section and an 8-connection section.
Description of the embodiments
In order to make the purpose and technical solutions of the embodiments of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. It will be apparent that the described embodiments are some, but not all, embodiments of the utility model. All other embodiments, which can be made by a person skilled in the art without creative efforts, based on the described embodiments of the present utility model fall within the protection scope of the present utility model.
As shown in fig. 1: the ash deposition preventing flue suitable for the tail gas treatment of the blended burned and aged garbage comprises a deacidification tower 1 and a bag type dust remover 4, wherein the deacidification tower 1 and the bag type dust remover 4 are communicated through the ash deposition preventing flue; the flue gas flows through the deacidification tower 1 and then is conveyed to the bag type dust collector 4 through an ash deposit prevention flue, and a dry method spray gun 6 is arranged on the ash deposit prevention flue. A large amount of slaked lime slurry is sprayed into the deacidification tower 1 to react with acid gas in the flue gas, a part of particles fall into a cone bucket of the deacidification tower 1 and are discharged, other particles enter the bag type dust collector 4 along with the flue gas through an outlet flue, and part of unreacted slaked lime particles enter the bag type dust collector 4 along with the particles to continuously remove acid gas such as SO2, HCl and the like. After the aged garbage is mixed, the dust concentration in the raw flue gas is increased, the lime slurry spraying amount is increased due to the increase of the acid gas concentration, and the dust concentration in the flue gas at the outlet flue of the deacidification tower 1 is obviously increased.
As shown in fig. 2, the ash deposition preventing flue comprises an outlet flue 2, a venturi section 7 and a connecting section 8; a venturi section 7 is arranged between the outlet flue 2 and the connecting section 8, and the outlet flue 2, the venturi section 7 and the connecting section 8 form an integrated flue structure; the outlet flue 2 is positioned at the cone bucket section of the deacidification tower 1, and the inlet of the outlet flue 2 coincides with the central line of the cone bucket section of the deacidification tower 1, so that the flue gas in the deacidification tower can flow uniformly after entering the flue. The venturi tube 7 is arranged in the middle section of the outlet flue 2, and the flue gas is accelerated and decompressed at the throat opening of the venturi tube 7, so that on one hand, the deacidification agent and the like are fully mixed with the flue gas, thereby being beneficial to improving the deacidification efficiency, and on the other hand, the sedimentation distance of the particulate matters is increased, and the deposition of the particulate matters in the flue is reduced.
In this embodiment, the dry deacidification is used as a supplement of the semi-dry deacidification, the dry spray gun 7 is arranged at the inlet end of the venturi section 7, and the spray gun mouth of the dry spray gun 7 is positioned on the central line of the outlet flue, so as to ensure the uniformity of the deacidification agent on the flow section.
The outlet flue 2 is provided with a temperature sensor, so as to prevent the bag from being pasted by the cloth bag caused by dew condensation, and the smoke temperature at the outlet flue 2 is not lower than 150 ℃. The outlet flue 2 is connected with an expansion joint near the dust remover side so as to buffer deformation and stress caused by temperature change.
The present utility model is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present utility model are intended to be included in the scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope of the claims.
Claims (8)
1. Anti-dust-accumulation flue suitable for mixing and burning of waste tail gas treatment of stale, comprising a deacidification tower and a bag type dust remover, and is characterized in that: the deacidification tower is communicated with the bag type dust collector through an ash accumulation preventing flue; the flue gas flows through the deacidification tower and then is conveyed to the bag type dust collector through an ash deposit prevention flue, and a dry method spray gun is arranged on the ash deposit prevention flue.
2. The ash deposition preventing flue suitable for tail gas treatment of co-fired and aged waste according to claim 1, wherein: the ash accumulation preventing flue comprises an outlet flue, a venturi tube section and a connecting section; a venturi section is arranged between the outlet flue and the connecting section, and the outlet flue, the venturi section and the connecting section form an integrated flue structure; the outlet flue of the ash deposit prevention flue extends into the cone bucket section of the deacidification tower, and the connection section of the ash deposit prevention flue is connected with the bag type dust remover; the dry spray gun extends into the outlet flue along the radial direction of the outlet flue.
3. The ash deposition preventing flue suitable for tail gas treatment of co-fired and aged waste according to claim 2, wherein: the central axis of the nozzle of the dry spray gun coincides with the central axis of the ash deposit prevention flue.
4. The ash deposition preventing flue suitable for tail gas treatment of co-fired and aged waste according to claim 2, wherein: the ash deposition preventing flue outlet flue positioned in the cone bucket section of the deacidification tower extends to the axial center line of the cone bucket section.
5. The ash deposition preventing flue suitable for tail gas treatment of co-fired and aged waste according to claim 2, wherein: the dry spray gun faces the inlet end of the venturi end of the ash deposit prevention flue.
6. The ash deposition preventing flue suitable for tail gas treatment of co-fired and aged waste according to claim 2, wherein: the joint of the ash accumulation preventing flue and the bag type dust collector is provided with an expansion joint.
7. The ash deposition preventing flue suitable for tail gas treatment of co-fired and aged waste according to claim 1, wherein: and a temperature sensor is arranged on the ash accumulation preventing flue.
8. The ash deposition preventing flue suitable for tail gas treatment of co-fired and aged waste according to claim 1, wherein: the temperature of the smoke output from the ash accumulation preventing flue is not lower than 150 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321952595.1U CN220657015U (en) | 2023-07-24 | 2023-07-24 | Anti-dust-accumulation flue suitable for tail gas treatment of blended burned and aged garbage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321952595.1U CN220657015U (en) | 2023-07-24 | 2023-07-24 | Anti-dust-accumulation flue suitable for tail gas treatment of blended burned and aged garbage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220657015U true CN220657015U (en) | 2024-03-26 |
Family
ID=90329208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321952595.1U Active CN220657015U (en) | 2023-07-24 | 2023-07-24 | Anti-dust-accumulation flue suitable for tail gas treatment of blended burned and aged garbage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220657015U (en) |
-
2023
- 2023-07-24 CN CN202321952595.1U patent/CN220657015U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202700306U (en) | Efficient wet type venturi pipe combined dedusting desulfurizer | |
| CN204502789U (en) | A kind of incinerator smoke denitration desulfurizer | |
| CN108295596A (en) | A kind of Venturi wet-process dust-extraction unit and fire coal boiler fume purification system | |
| CN210206404U (en) | Desulfurization, denitrification and dust removal integrated device for industrial kiln | |
| CN116262198A (en) | Two-stage dry desulfurization deacidification dust removal process for waste incineration flue gas | |
| CN220657015U (en) | Anti-dust-accumulation flue suitable for tail gas treatment of blended burned and aged garbage | |
| CN108561893A (en) | A kind of Industrial Boiler flue gas multiple pollutant Collaborative Control technology and its technological process | |
| CN205308070U (en) | Dust removal drainage device | |
| CN203598934U (en) | Dual smoke conditioning system | |
| CN202191838U (en) | Flue gas disposing device of coal-fired industrial boiler | |
| CN101972594A (en) | Water-covered type dedusting and desulphuration method and device | |
| CN206355734U (en) | A kind of circulation type semi-dry desulphurization type pulsed is combined sack cleaner | |
| CN212319755U (en) | Wind power powder spraying device for hazardous waste incineration | |
| CN210385466U (en) | Inside and outside desulfurization system of circulating fluidized bed boiler stove | |
| CN102814116A (en) | All-time interval rotary spray drying waste incineration flue gas purification device | |
| CN202762286U (en) | Full-period rotation spray drying waste incineration flue gas cleaning device | |
| CN205672778U (en) | A kind of semi-dry type flue gas desulfurization device | |
| CN208553733U (en) | A kind of system that base reagent removes sulfur trioxide in flue gas | |
| CN2708986Y (en) | High efficient spiral type spraying dust separation desulfur device | |
| CN202921117U (en) | Square and round combined desulfurization deduster | |
| CN201744266U (en) | Induced drought & water jet dedusting device | |
| CN2451213Y (en) | Efficient desulphurizing & denitrifying reactor for coal-firing boiler | |
| CN216963873U (en) | High-efficient SOx/NOx control device is used to industrial boiler | |
| CN205007832U (en) | Flue gas integration processing system | |
| CN214598171U (en) | High-efficient tar flue gas desulphurization unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |