CN220103142U - Combustion chamber of continuous self-maintaining smoldering furnace - Google Patents
Combustion chamber of continuous self-maintaining smoldering furnace Download PDFInfo
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- CN220103142U CN220103142U CN202320722965.6U CN202320722965U CN220103142U CN 220103142 U CN220103142 U CN 220103142U CN 202320722965 U CN202320722965 U CN 202320722965U CN 220103142 U CN220103142 U CN 220103142U
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- furnace
- electric heater
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- 238000002485 combustion reaction Methods 0.000 title claims abstract description 68
- 239000002994 raw material Substances 0.000 claims abstract description 23
- 239000000463 material Substances 0.000 claims abstract description 15
- 238000006243 chemical reaction Methods 0.000 abstract description 23
- 239000010802 sludge Substances 0.000 abstract description 19
- 238000000034 method Methods 0.000 abstract description 8
- 239000002893 slag Substances 0.000 abstract description 7
- 230000008569 process Effects 0.000 abstract description 6
- 238000001035 drying Methods 0.000 abstract description 5
- 230000006872 improvement Effects 0.000 description 6
- 230000036632 reaction speed Effects 0.000 description 6
- 230000001105 regulatory effect Effects 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 239000002910 solid waste Substances 0.000 description 4
- 239000007789 gas Substances 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- YLQBMQCUIZJEEH-UHFFFAOYSA-N Furan Chemical compound C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 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
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000010871 livestock manure Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Gasification And Melting Of Waste (AREA)
Abstract
The utility model relates to the technical field of sludge treatment and discloses a combustion chamber of a continuous self-maintaining smoldering furnace, which comprises a material adding layer, a smoldering upper layer and a smoldering layer from top to bottom, wherein the fire grate is fixedly connected with the side wall of the combustion chamber body, the fire grate is positioned at the bottom of the smoldering layer, the electric heater is used for igniting raw materials of the smoldering layer, one end of the electric heater is fixed on the side wall of the combustion body, the other end of the electric heater is positioned at the bottom of the smoldering layer, and the bottom of the combustion chamber body is connected with an ash bin. According to the scheme, the smoldering reaction of the smoldering layer can be continuously carried out through the arrangement of the three material layers, so that the sludge treatment efficiency is improved; preheating and drying are carried out on the raw materials on the upper layer of smoldering, so that the smoldering reaction is accelerated, pre-drying before entering a furnace is not needed, and the treatment process is simplified; can carry out slag discharge, smoldering and feeding simultaneously, and ensure that smoldering reaction of the combustion chamber is continuously carried out.
Description
Technical Field
The utility model relates to the technical field of sludge treatment, in particular to a combustion chamber of a continuous self-maintaining smoldering furnace.
Background
The high-water-content solid waste comprises municipal sludge, pipeline sludge, river sludge, biogas residues, oily sludge, livestock manure and the like, and the water content of the solid waste is generally above 80%, and the water content is higher.
Sludge is a solid precipitate produced in water and sewage treatment processes, and at present, methods for treating solid wastes with high water content mainly include methods of biological treatment, landfill, physical and chemical treatment, incineration, pyrolysis, smoldering, and the like. The smoldering reaction temperature is lower than that of open flame combustion, so that the yield of harmful gases such as thermal NOx, dioxin, furan and the like is greatly reduced, and the nitrogen oxides in the flue gas can reach the standard without being treated by an SNCR system. Studies have shown that stable smoldering of high moisture content solid waste can still occur at oxygen concentrations as low as 12% or at moisture contents above 100%.
At present, when sludge with high water content is subjected to smoldering treatment, after the sludge in a smoldering furnace is subjected to smoldering treatment, slag removal is performed, feeding ignition is performed, and continuous sludge smoldering treatment cannot be performed in a combustion chamber, so that the treatment efficiency is lower.
Disclosure of Invention
The utility model aims to provide a combustion chamber of a continuous self-maintaining smoldering furnace, so as to solve the problem that the sludge treatment efficiency is low because the existing combustion chamber cannot perform continuous smoldering.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a continuous self-sustaining smoldering furnace's combustion chamber, combustion chamber body, electric heater and grate, the combustion chamber body is from last to including adding the bed of material, smoldering upper strata and smoldering layer down in proper order, grate and combustion chamber body lateral wall fixed connection, the grate is located smoldering layer bottom, electric heater is used for igniting the raw materials on smoldering layer, electric heater one end is fixed on combustion body lateral wall, electric heater other end is located smoldering layer bottom, combustion chamber body bottom is connected with the lime-ash storehouse.
The principle of the scheme is as follows: the material is added above the smoldering upper layer to form a material adding layer, the electric heater is started, along with the gradual smoldering of the raw material of the original smoldering layer, the burnt ash enters into the ash bin from the grate, the material adding layer and the original smoldering upper layer gradually move downwards, the raw material of the original smoldering upper layer gradually moves downwards to form a new smoldering layer, the smoldering reaction of the smoldering layer is ensured to be continuously carried out, and the sludge treatment efficiency is improved.
The scheme has the advantages that: the smoldering reaction of the smoldering layer can be continuously carried out through the arrangement of the three material layers, so that the sludge treatment efficiency is improved; meanwhile, the raw materials on the upper smoldering layer can be preheated and dried when the smoldering layer performs the smoldering reaction, so that the smoldering reaction can be accelerated, the pre-drying before entering a furnace is not needed, and the treatment process is simplified; can carry out slag discharge, smoldering and feeding simultaneously, and ensure that smoldering reaction of the combustion chamber is continuously carried out.
Preferably, as an improvement, a placing plate is arranged at the bottom of the fire grate and is used for bearing the electric heater. The electric heater is placed more stably.
Preferably, as a modification, the electric heaters are uniformly distributed on the placement plate. The electric heaters are uniformly arranged to uniformly ignite the smoldering layer, so that raw materials synchronously react, and the smoldering speed of the raw materials on the smoldering layer is conveniently regulated and controlled.
Preferably, as a modification, the placing plate is provided with a placing groove, and the electric heater is positioned in the placing groove. The electric heater is conveniently placed in the placement groove.
Preferably, as an improvement, the device further comprises a thermocouple for measuring the temperature of the combustion chamber body, wherein the thermocouple is positioned on the side wall of the combustion chamber body.
Preferably, as a modification, the thermocouples are uniformly distributed on the side of the combustion chamber body.
Preferably, as an improvement, the air distribution pipe is used for adding air to the smoldering layer, and the air distribution pipe is positioned in the smoldering layer.
Preferably, as an improvement, the air distribution pipes are positioned below the fire grate, the air distribution pipes are uniformly distributed in a strip shape, gaps are arranged between the air distribution pipes, and air holes are formed in the air distribution pipes. The gap distribution of the air distribution pipe does not influence the ash formed by smoldering to fall into an ash bin; the air holes are arranged to enable the gas to be uniformly blown to the smoldering layer, so that the smoldering layer is more uniform in reaction, and the smoldering reaction speed of the combustion chamber is facilitated.
Preferably, as an improvement, the side surface of the combustion chamber body is provided with an electric furnace door, and the electric furnace door is positioned above the smoldering upper layer.
Preferably, as an improvement, a chimney and a feed hopper are arranged at the top of the combustion chamber body.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present utility model.
Fig. 2 is a sectional view in the A-A direction of fig. 1 according to an embodiment of the present utility model.
Detailed Description
The following is a further detailed description of the embodiments:
reference numerals in the drawings of the specification include: the combustion chamber comprises a combustion chamber body 1, a charging layer 101, a smoldering upper layer 102, a smoldering layer 103, a chimney 2, an electric furnace door 3, a thermocouple 4, an electric heater 5, a fire grate 6, an air distribution pipe 7, an ash bin 8 and a placing plate 9.
An example is substantially as shown in figures 1 and 2:
a combustion chamber of a continuous self-sustaining smoldering furnace, comprising: the combustion chamber comprises a combustion chamber body 1, a thermocouple 4 and a fire grate 6, wherein the combustion chamber body 1 is divided into a smoldering upper layer 102 and a smoldering layer 103, materials are added into the smoldering upper layer 102 and the smoldering layer 103 of the combustion chamber body 1 from a feeding layer 101, along with gradual smoldering of raw materials of an original smoldering layer 103, the raw materials of the original smoldering upper layer 102 gradually move downwards to form a new smoldering layer 103, so that smoldering reaction of the smoldering layer 103 is ensured to be continuously carried out, and sludge treatment efficiency is improved. Meanwhile, the smoldering layer 103 can preheat and dry the raw materials of the smoldering upper layer 102 during the smoldering reaction, so that the smoldering reaction can be accelerated, the pre-drying before entering a furnace is not needed, and the treatment process is simplified.
The top of the combustion chamber body 1 is provided with a chimney 2 and a feed hopper, and the feed hopper is obliquely downwards arranged. The chimney 2 and the feed hopper are located in particular above the charge layer 101.
The side of the combustion chamber body 1 is provided with an electric furnace door 3, and the electric furnace door 3 is arranged above the material adding layer 101. The electric furnace door 3 is arranged to facilitate continuous addition of sludge raw materials into the combustion chamber body 1 when smoldering reaction is carried out.
The fire grate 6 is fixedly connected with the side wall of the combustion chamber body 1, the fire grate 6 is positioned at the bottom of the smoldering layer 103, and ash slag formed after the smoldering reaction of the sludge raw material in the smoldering layer 103 falls from the fire grate 6.
In the embodiment, slag discharge and feeding or slag discharge and feeding can be selected, and the smoldering reaction is ensured to be continuously carried out by continuously forming a smoldering upper layer. In this embodiment, a feeding trolley for adding raw materials to the feeding layer 101 is connected with an ash blanking mechanism of the ash bin 8, and after receiving an operating signal of the ash blanking mechanism, the feeding trolley adds materials to the feeding layer 101 above the smoldering upper layer 102.
The thermocouple 4 is used for measuring the temperature of the combustion chamber body 1, the thermocouple 4 is located on the side wall of the combustion chamber body 1, and the bottom of the combustion chamber body 1 is connected with the ash bin 8. The number of thermocouples 4 is plural, and the thermocouples 4 are uniformly distributed on the side surface of the combustion chamber body 1. The combustion chamber body 1 is measured through the thermocouples 4, so that multiple temperatures are obtained, the temperature measurement result is more accurate, the smoldering reaction speed of the smoldering layer 103 is more conveniently regulated and controlled, and the generation of open flame is reduced.
The combustion device further comprises an electric heater 5, wherein the electric heater 5 is used for igniting raw materials of the smoldering layer 103, one end of the electric heater 5 is fixed on the side wall of the combustion body, and the other end of the electric heater 5 is positioned at the bottom of the smoldering layer 103. Slag discharge, smoldering and feeding can be performed simultaneously, so that the smoldering reaction of the combustion chamber body 1 is ensured to be continuously performed.
The bottom of the fire grate 6 is provided with a placing plate 9, and the placing plate 9 is used for bearing the electric heater 5. Making the placement of the electric heater 5 more stable. The placing plate 9 is provided with a placing groove, and the electric heater 5 is positioned in the placing groove. The placement groove is convenient for placing the electric heater 5.
The number of the electric heaters 5 is multiple, and the electric heaters 5 are uniformly distributed on the placing plate 9. The plurality of electric heaters 5 are uniformly arranged to uniformly ignite the smoldering layer 103, so that raw materials synchronously react, and the smoldering speed of the raw materials of the smoldering layer 103 is conveniently regulated and controlled.
The air distribution pipe 7 is used for adding air to the smoldering layer 103, and the air distribution pipe 7 is positioned in the smoldering layer 103. The air distribution pipes 7 are positioned below the fire grate 6, the air distribution pipes 7 are uniformly distributed in a strip shape, gaps are arranged between the air distribution pipes 7, and air holes are formed in the air distribution pipes 7. The gap distribution of the air distribution pipe 7 does not influence the ash formed by smoldering to fall into the ash bin 8; the air holes are arranged to enable the gas to be uniformly blown to the smoldering layer 103, so that the smoldering layer 103 is more uniform in reaction, and the smoldering reaction speed of the combustion chamber body 1 is facilitated.
The specific implementation process is as follows: after receiving the working signal of the ash blanking mechanism, the charging trolley adds materials to the charging layer 101 above the smoldering upper layer 102, the electric heater 5 is turned on, the thermocouple 4 measures the temperature in the combustion chamber body 1 in real time, the material addition and the smoldering reaction speed control are convenient to carry out in real time, after the temperature of the original smoldering layer 103 reaches the preset temperature, the electric heater 5 is turned off, then air is added to the smoldering layer 103 through a part of pipes, the smoldering reaction speed can be regulated and controlled by controlling the wind speed of the air distribution pipe 7, along with the gradual smoldering of the raw materials of the original smoldering layer 103, the burnt ash enters the ash bin 8 from the grate 6, the raw materials of the original smoldering upper layer 102 gradually downwards form a new smoldering layer 103, the smoldering reaction of the original smoldering upper layer 103 is ensured to be continuously carried out, and the sludge treatment efficiency is improved.
According to the scheme, the material adding layer 101, the smoldering upper layer 102 and the smoldering layer 103 are formed, so that the raw materials of the smoldering upper layer 102 can be preheated and dried simultaneously in the smoldering reaction, the pre-drying before entering a furnace is not needed, the treatment process is simplified, and meanwhile, the smoldering reaction speed is accelerated; the preparation of the smoldering layer 103 and the continuous discharge of ash residues on the fire grate 6 lead the smoldering reaction of the smoldering layer 103 to be continuously carried out, thus improving the treatment efficiency of the sludge; the smoldering reaction of the combustion chamber body 1 is ensured to continuously proceed through the smoldering upper layer 102; the plurality of electric heaters 5 are uniformly arranged to uniformly ignite the smoldering layer 103, so that raw materials synchronously react, and the smoldering speed of the raw materials of the smoldering layer 103 is conveniently regulated and controlled; the smoldering reaction of the smoldering layer 103 can be continued by the three-layer material layer arrangement.
The foregoing is merely exemplary of the present utility model, and specific technical solutions and/or features that are well known in the art have not been described in detail herein. It should be noted that, for those skilled in the art, several variations and modifications can be made without departing from the technical solution of the present utility model, and in the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "fixed," etc. are to be construed broadly, and may be either a fixed connection, a removable connection, or an integral connection, for example; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances. The protection scope of the present utility model is subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.
Claims (10)
1. A combustion chamber of a continuous self-sustaining smoldering furnace, comprising: the combustion chamber comprises a combustion chamber body, an electric heater and a fire grate, wherein the combustion chamber body sequentially comprises a material adding layer, a smoldering upper layer and a smoldering layer from top to bottom, the fire grate is fixedly connected with the side wall of the combustion chamber body, the fire grate is positioned at the bottom of the smoldering layer, the electric heater is used for igniting raw materials of the smoldering layer, one end of the electric heater is fixed on the side wall of the combustion body, the other end of the electric heater is positioned at the bottom of the smoldering layer, and the bottom of the combustion chamber body is connected with an ash bin.
2. The combustion chamber of a continuous self-sustaining smoldering furnace as recited in claim 1, wherein: the bottom of the fire grate is provided with a placing plate which is used for bearing the electric heater.
3. The combustion chamber of a continuous self-sustaining smoldering furnace as recited in claim 2, wherein: the electric heaters are uniformly distributed on the placing plate.
4. The combustion chamber of a continuous self-sustaining smoldering furnace as recited in claim 2, wherein: the placing plate is provided with a placing groove, and the electric heater is positioned in the placing groove.
5. The combustion chamber of a continuous self-sustaining smoldering furnace as recited in claim 1, wherein: the device also comprises a thermocouple, wherein the thermocouple is used for measuring the temperature of the combustion chamber body, and the thermocouple is positioned on the side wall of the combustion chamber body.
6. The combustion chamber of a continuous self-sustaining smoldering furnace as recited in claim 5, wherein: the thermocouples are uniformly distributed on the side face of the combustion chamber body.
7. The combustion chamber of a continuous self-sustaining smoldering furnace as recited in claim 1, wherein: the air distribution pipe is used for adding air to the smoldering layer, and the air distribution pipe is positioned in the smoldering layer.
8. The combustion chamber of a continuous self-sustaining smoldering furnace as recited in claim 7, wherein: the air distribution pipes are arranged below the fire grate and are uniformly distributed in a strip shape, gaps are arranged between the air distribution pipes, and air holes are formed in the air distribution pipes.
9. The combustion chamber of a continuous self-sustaining smoldering furnace as recited in claim 1, wherein: an electric furnace door is arranged on the side face of the combustion chamber body, and the electric furnace door is positioned above the smoldering upper layer.
10. The combustion chamber of a continuous self-sustaining smoldering furnace as recited in claim 1, wherein: the top of the combustion chamber body is provided with a chimney and a feed hopper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320722965.6U CN220103142U (en) | 2023-04-04 | 2023-04-04 | Combustion chamber of continuous self-maintaining smoldering furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320722965.6U CN220103142U (en) | 2023-04-04 | 2023-04-04 | Combustion chamber of continuous self-maintaining smoldering furnace |
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| Publication Number | Publication Date |
|---|---|
| CN220103142U true CN220103142U (en) | 2023-11-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320722965.6U Active CN220103142U (en) | 2023-04-04 | 2023-04-04 | Combustion chamber of continuous self-maintaining smoldering furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220103142U (en) |
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2023
- 2023-04-04 CN CN202320722965.6U patent/CN220103142U/en active Active
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