CN220981350U - Corrosion-proof device for heating surface of refuse incinerator - Google Patents
Corrosion-proof device for heating surface of refuse incinerator Download PDFInfo
- Publication number
- CN220981350U CN220981350U CN202322687921.7U CN202322687921U CN220981350U CN 220981350 U CN220981350 U CN 220981350U CN 202322687921 U CN202322687921 U CN 202322687921U CN 220981350 U CN220981350 U CN 220981350U
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- China
- Prior art keywords
- powder
- heating surface
- incinerator
- air
- shell
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 33
- 239000000843 powder Substances 0.000 claims abstract description 62
- 238000005260 corrosion Methods 0.000 claims abstract description 18
- 238000005507 spraying Methods 0.000 claims abstract description 18
- 230000007797 corrosion Effects 0.000 claims abstract description 14
- 238000004056 waste incineration Methods 0.000 claims description 8
- 238000005536 corrosion prevention Methods 0.000 claims description 5
- 238000002347 injection Methods 0.000 claims description 5
- 239000007924 injection Substances 0.000 claims description 5
- 239000002028 Biomass Substances 0.000 abstract description 5
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 abstract description 5
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 abstract description 5
- 239000000920 calcium hydroxide Substances 0.000 abstract description 5
- 229910001861 calcium hydroxide Inorganic materials 0.000 abstract description 5
- 239000000460 chlorine Substances 0.000 abstract description 5
- 229910052801 chlorine Inorganic materials 0.000 abstract description 5
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 abstract description 5
- 239000000347 magnesium hydroxide Substances 0.000 abstract description 5
- 229910001862 magnesium hydroxide Inorganic materials 0.000 abstract description 5
- 239000000446 fuel Substances 0.000 abstract description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 abstract description 3
- 239000011593 sulfur Substances 0.000 abstract description 3
- 229910052717 sulfur Inorganic materials 0.000 abstract description 3
- 150000003464 sulfur compounds Chemical class 0.000 abstract description 2
- 239000000779 smoke Substances 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 19
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 6
- 239000003546 flue gas Substances 0.000 description 6
- 239000002699 waste material Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 238000004887 air purification Methods 0.000 description 1
- -1 and meanwhile Chemical compound 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000012717 electrostatic precipitator Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229940098458 powder spray Drugs 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
Abstract
The application discloses an anti-corrosion device for a heating surface of a garbage incinerator, which comprises a heating surface, a heating surface and a heating surface, wherein the heating surface is arranged on a feeding hole of the incinerator: the powder spraying device comprises an auger conveyor, a powder tank, a powder conveying gas circuit and a plurality of powder spraying heads; the discharge end of the auger conveyor is communicated with the feed end of the incinerator through a flow guide pipe; the auger conveyor includes: the shell and the auger assembly are accommodated in the shell and rotationally arranged in the shell; the powder spraying heads are arranged in the shell at intervals. After calcium hydroxide, magnesium hydroxide powder and biomass fuel powder are added into the garbage through the powder storage tank and the pipeline, the content of chlorine and sulfur elements in the garbage can be reduced, the content of chlorine and sulfur compounds in smoke is further reduced, and the occurrence of corrosion of a heating surface is reduced.
Description
Technical Field
The application relates to the technical field of garbage treatment, in particular to an anti-corrosion device for a heating surface of a garbage incineration boiler.
Background
The conventional method for harmless treatment of the garbage is an incineration method, the volume of the garbage can be effectively reduced after incineration, the generated heat can also be used for power generation, and the incinerator can be designed to have capacity according to the treatment capacity, can meet the needs of various treatment capacities, and is widely applied to rural areas and cities.
However, the garbage incinerator can produce a large amount of polluted gas in the garbage incineration process, and the polluted gas can be combined through equipment such as a high-voltage electrostatic precipitator and the like to realize air purification after leaving the incinerator, but the corrosion is serious due to the fact that the temperature of the heating surface in the incinerator is higher and the heating surface is directly contacted with the polluted gas containing chlorine and sulfur, and meanwhile, oxygen in the air is easier to react with furnace metal at high temperature, and molten salt substances adhered on the inner wall of the incinerator can further increase the corrosion of the furnace. Once the corrosion damage is serious, the whole incinerator is scrapped, and the service life of equipment is shortened.
Disclosure of utility model
Aiming at the technical problems, the application provides an anti-corrosion device for the heating surface of the garbage incinerator, which can effectively prolong the service life of the incinerator and slow down the corrosion of the heating surface.
The application provides an anti-corrosion device for a heating surface of a garbage incinerator, which comprises a heating surface, a heating surface and a heating surface, wherein the heating surface is arranged on a feeding hole of the incinerator: the powder spraying device comprises an auger conveyor, a powder tank, a powder conveying gas circuit and a plurality of powder spraying heads;
The discharge end of the auger conveyor is communicated with the feed end of the incinerator through a flow guide pipe;
The auger conveyor includes: the shell and the auger assembly are accommodated in the shell and rotationally arranged in the shell; the powder spraying heads are arranged in the shell at intervals;
each powder spraying head is respectively communicated with a powder tank pipeline; the powder conveying gas circuit is arranged on a pipeline where the powder tank is communicated with the powder spraying head.
Preferably, it comprises: a plurality of gas injection tubes; the air ejector pipes are symmetrically arranged on two sides of the top surface of the incinerator.
Preferably, the air ejector pipes at two sides of the incinerator are arranged in a crossing mode.
Preferably, one end of the air jet pipe is connected with the furnace top, and the other end of the air jet pipe extends obliquely to the central line of the incinerator.
Preferably, the air ejector pipes are respectively communicated with the high-pressure gas circuit pipelines; the pipeline of the air jet pipe communicated with the high-pressure gas path is provided with an air jet valve and an air jet pump.
Preferably, one end of the powder conveying gas path is communicated with a powder tank and a powder spraying head connecting pipeline; the other end of the powder conveying gas circuit is communicated with a gas generator.
Preferably, a conveying air pump and a conveying air valve are arranged on the powder conveying air path.
The application has the beneficial effects that:
1) According to the corrosion prevention device for the heating surface of the waste incineration boiler, provided by the application, the water content in the waste incineration flue gas influences the corrosion reaction in the boiler, the auger conveyor is arranged on the inlet of the waste incineration flue gas, and the spray heads are arranged on the closing of the auger conveyor so as to spray calcium hydroxide, magnesium hydroxide powder and biomass fuel powder into the conveyor, and the stirring and mixing of the waste, the calcium hydroxide, the magnesium hydroxide powder and the biomass dye powder are realized along with the conveying, so that after the powder material is added into the waste, the water content of the waste can be absorbed on one hand, the water content of the subsequent flue gas is reduced, the corrosion reaction caused by the contact of the flue gas and the heating surface is reduced, and on the other hand, the content of chlorine and sulfur elements in the waste can be reduced after the calcium hydroxide, the magnesium hydroxide powder and the biomass fuel powder are added into the waste through the powder storage tank and the pipeline, so that the chlorine and sulfur compound content in the flue gas is reduced, and the corrosion condition of the heating surface is reduced.
2) According to the corrosion prevention device for the heating surface of the garbage incineration boiler, the plurality of air injection pipes are arranged in the furnace top of the incinerator in an array manner, so that more turbulence is generated in the incinerator, the contact time of flue gas in the incinerator and the heating surface is shortened, and the effective corrosion prevention of the heating surface in the incinerator is realized. The device can effectively prolong the service life of the incinerator and reduce the overhaul times.
Drawings
Fig. 1 is a schematic diagram of a front view installation state of a corrosion protection device for a heating surface of a garbage incineration boiler;
FIG. 2 is a schematic view of the structure of the stove top according to the present application;
legend description:
Incinerator 1, furnace top 11, air jet pipe 12, feed inlet 13, air jet valve 15, air jet pump 14, powder tank 2, conveying air pump 21, conveying air valve 211, casing 3, feed inlet 31, auger blade 311, rotating shaft 312, motor 313, powder spraying head 32, powder conveying pipe 321, ventilation filter screen 322, and discharge outlet 33.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.
The technical means which are not described in detail and are not used for solving the technical problems of the application are all arranged according to common general knowledge in the field, and various common general knowledge arrangement modes can be realized.
Referring to fig. 1-2, the garbage incineration boiler heating surface corrosion prevention device provided by the application comprises: the incinerator comprises an incinerator 1, a furnace top 11, an air jet pipe 12, a feed inlet 13, an air jet valve 15, an air jet pump 14, a powder tank 2, a conveying air pump 21, a conveying air valve 211, a machine shell 3, a feed inlet 31, auger paddles 311, a rotating shaft 312, a motor 313, a powder jet head 32, a powder conveying pipe 321 and a ventilation filter screen 322. A feeding hole 13 is formed in one end face of the incinerator 1, the feeding hole 13 is communicated with the auger conveyor through a guide pipe, the guide pipe can automatically slide down into the incinerator according to the setting position adjustment angle of the feeding hole 13 and the auger conveyor, and garbage after powder mixing can be adjusted according to the equipment installation position requirement machine.
The furnace top 11 of the incinerator 1 is provided with a plurality of air ejector pipes 12, the ejection ends of the air ejector pipes 12 are arranged in a crossing way, one end of each air ejector pipe 12 is arranged on the furnace top 11, and each air ejector pipe 12 is respectively communicated with a high-pressure gas storage tank or a generator. The high-pressure gas pipeline is provided with a gas injection valve 15 and a gas injection pump 14 to realize effective control of gas.
The gas lances 12 are disposed on opposite sides of the roof 11 and are symmetrical with respect to each other, for example, in one embodiment, 4 rows are disposed on one side, a plurality of gas lances 12 are disposed in each row, and the extended ends of the gas lances 12 on opposite sides are disposed in a crossing manner. The fixed end of the air jet pipe 12 is connected with the furnace top 11, and the extending end is arranged in an extending way in an inclined way to the central axis of the furnace body.
The auger conveyor used in the present application may be of a construction known in the art, including, for example: a casing 3, a feed inlet 31 arranged on the top surface of one end of the casing 3 and a discharge outlet 33 arranged on the bottom surface of the other end; the discharge port 33 is connected with the feed port 13 of the incinerator 1. The auger blade 311 is arranged on the rotating shaft 312; the rotating shaft 312 is in driving connection with the motor 313; the motor 313 is arranged outside the end face of the casing 3; the rotary shaft 312 is mounted in the housing 3 by a bearing.
The powder spraying heads 32 are arranged on the inner wall of the shell 3 at intervals and are respectively communicated with the pipeline of the powder tank 2, and after the calcium hydroxide, the magnesium hydroxide powder and the biomass fuel powder to be added are mixed in the powder tank 2 according to the needs, the powder can be sprayed into the shell 3 in a split mode through a conveying pipeline arranged on the communicating pipeline, so that powder spraying and uniform distribution are achieved.
In one embodiment, the powder spray heads 32 are communicated with the powder tank 2 after being communicated with the powder conveying pipe 321.
In one embodiment, to ensure the balance of the air pressure inside and outside the casing 3, a plurality of air vents can be started on the casing 3, and an air vent filter screen 322 is arranged on the air vents to reduce the leakage of dust or garbage.
Although the present utility model has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.
Claims (7)
1. The utility model provides a waste incineration boiler heating surface anticorrosion device which is characterized in that, including setting up on the burning furnace feed inlet: the powder spraying device comprises an auger conveyor, a powder tank, a powder conveying gas circuit and a plurality of powder spraying heads;
The discharge end of the auger conveyor is communicated with the feed end of the incinerator through a flow guide pipe;
The auger conveyor includes: the shell and the auger assembly are accommodated in the shell and rotationally arranged in the shell; the powder spraying heads are arranged in the shell at intervals;
each powder spraying head is respectively communicated with a powder tank pipeline; the powder conveying gas circuit is arranged on a pipeline where the powder tank is communicated with the powder spraying head.
2. The corrosion protection device for a heating surface of a waste incineration boiler according to claim 1, comprising: a plurality of gas injection tubes; the air ejector pipes are symmetrically arranged on two sides of the top surface of the incinerator.
3. The corrosion protection device for the heating surface of the garbage incinerator according to claim 2, wherein the air ejector pipes at two sides of the incinerator are arranged in a crossing manner.
4. The corrosion protection device for the heating surface of the garbage incinerator according to claim 2, wherein one end of the air ejector tube is connected with the top of the incinerator, and the other end of the air ejector tube extends obliquely to the central line of the incinerator.
5. The corrosion protection device for the heating surface of the waste incineration boiler according to claim 2, wherein the air ejector pipes are respectively communicated with the high-pressure gas circuit pipelines; the pipeline of the air jet pipe communicated with the high-pressure gas path is provided with an air jet valve and an air jet pump.
6. The corrosion prevention device for the heating surface of the waste incineration boiler according to claim 1, wherein one end of the powder conveying gas path is communicated with a powder tank and a powder spraying head connecting pipeline; the other end of the powder conveying gas circuit is communicated with a gas generator.
7. The corrosion protection device for the heating surface of the waste incineration boiler according to claim 6, wherein a conveying air pump and a conveying air valve are arranged on the powder conveying air channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322687921.7U CN220981350U (en) | 2023-10-08 | 2023-10-08 | Corrosion-proof device for heating surface of refuse incinerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322687921.7U CN220981350U (en) | 2023-10-08 | 2023-10-08 | Corrosion-proof device for heating surface of refuse incinerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220981350U true CN220981350U (en) | 2024-05-17 |
Family
ID=91035188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322687921.7U Active CN220981350U (en) | 2023-10-08 | 2023-10-08 | Corrosion-proof device for heating surface of refuse incinerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220981350U (en) |
-
2023
- 2023-10-08 CN CN202322687921.7U patent/CN220981350U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |