CN111594850A - Grate type plasma gasification melting furnace - Google Patents
Grate type plasma gasification melting furnace Download PDFInfo
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- CN111594850A CN111594850A CN202010552781.0A CN202010552781A CN111594850A CN 111594850 A CN111594850 A CN 111594850A CN 202010552781 A CN202010552781 A CN 202010552781A CN 111594850 A CN111594850 A CN 111594850A
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- incineration
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- preheating
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- 238000002844 melting Methods 0.000 title claims abstract description 38
- 230000008018 melting Effects 0.000 title claims abstract description 38
- 238000009272 plasma gasification Methods 0.000 title claims abstract description 14
- 238000001035 drying Methods 0.000 claims abstract description 21
- 239000003546 flue gas Substances 0.000 claims abstract description 5
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 16
- 230000007306 turnover Effects 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 abstract description 6
- 239000005416 organic matter Substances 0.000 abstract description 4
- 238000000926 separation method Methods 0.000 abstract description 3
- 239000002910 solid waste Substances 0.000 description 11
- 239000000779 smoke Substances 0.000 description 5
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 239000007789 gas Substances 0.000 description 3
- 239000002893 slag Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 229910002091 carbon monoxide Inorganic materials 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 238000006479 redox reaction Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 210000004127 vitreous body Anatomy 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/02—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment
- F23G5/04—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment drying
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/002—Incineration of waste; Incinerator constructions; Details, accessories or control therefor characterised by their grates
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/02—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment
- F23G5/027—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment pyrolising or gasifying stage
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/44—Details; Accessories
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2203/00—Furnace arrangements
- F23G2203/101—Furnace arrangements with stepped or inclined grate
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Gasification And Melting Of Waste (AREA)
Abstract
The invention discloses a grate type plasma gasification melting furnace, which comprises a feed inlet, wherein a preheating and drying area is connected to the feed inlet, an incineration area is connected to an outlet of the preheating and drying area, an burnout area is arranged at an outlet of the incineration area, a melting area is arranged at an outlet of the burnout area, a discharge port is arranged on the melting area, and a flue gas outlet is arranged above the incineration area. The melting furnace realizes the separation of organic matter reaction and inorganic matter melting region, has no mutual influence, simple adjustment, stable operation and thorough incineration treatment.
Description
Technical Field
The invention belongs to the technical field of melting furnaces, and particularly relates to a grate type plasma gasification melting furnace.
Background
The existing plasma gasification melting furnace gasifies and melts solid waste in a furnace body, so that the process control difficulty is large, the incineration treatment of a grate furnace is not thorough, and organic matters in residues are not completely combusted.
Disclosure of Invention
The invention aims to provide a grate type plasma gasification melting furnace which is thorough in incineration treatment.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a grate type plasma gasification melting furnace, includes the feed inlet, be connected with on the feed inlet and preheat the drying zone, the exit linkage who preheats the drying zone has burning zone, burning zone's export is equipped with the melting zone, be equipped with the discharge port on the melting zone, burning zone's top is equipped with the exhanst gas outlet.
Furthermore, the preheating and drying area, the burning area and the burnout area all convey materials through a mechanical grate.
Further, the temperature of the preheating and drying zone is set to be 500-600 ℃, the temperature of the incineration zone is set to be 800-1000 ℃, the temperature of the burn-out zone is set to be 900-1100 ℃, and the temperature of the melting zone is 1400-1600 ℃.
Furthermore, the mechanical fire grate adopts any one of a reverse-push type fire grate furnace, a forward-push type fire grate furnace or a reciprocating turnover type fire grate furnace.
Furthermore, the inner wall of the feeding hole is hinged with two oppositely arranged guide plates, a connecting cylinder is arranged below each guide plate, the shell of each connecting cylinder is hinged with the inner wall of the feeding hole, and the piston rod of each connecting cylinder is hinged with the corresponding guide plate.
Compared with the prior art, the invention has the beneficial effects that.
(1) The melting furnace realizes the separation of organic matter reaction and inorganic matter melting area, and has no mutual influence, simple regulation, stable operation and thorough incineration treatment.
(2) The retention time of the solid waste in the furnace can be realized by adjusting the mechanical fire grate moving structure.
Drawings
FIG. 1 is a schematic structural diagram of a stoker-type plasma gasification melting furnace according to the present invention.
FIG. 2 is a schematic view of the feed inlet.
In the figure: 1. a flue gas outlet; 2. a melting zone; 3. a burnout zone; 4. an incineration zone; 5. a preheating drying zone; 6. a feed inlet; 7. a plasma torch; 8. primary air; 9. secondary air; 10. tertiary air; 11. a slag discharge port; 12. connecting the cylinder; 13. a material guide plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment.
Referring to fig. 1-2, the invention provides a grate type plasma gasification melting furnace, which comprises a feed inlet 6, wherein the feed inlet 6 is connected with a preheating drying area 5, an outlet of the preheating drying area 5 is connected with an incineration area 4, an outlet of the incineration area 4 is provided with a burnout area 3, an outlet of the burnout area 3 is provided with a melting area 2, the melting area 2 is provided with a discharge port, and a flue gas outlet 1 is arranged above the incineration area 4; the preheating and drying area 5, the burning area 4 and the burnout area 3 all convey materials through a mechanical grate.
The temperature of the preheating and drying area 5 is set to 500-; the preheating drying zone 5, the burning zone 4 and the burnout zone 3 can adopt a plasma torch 7, a natural gas burner and a diesel burner as combustion-supporting systems, and the melting zone 2 can adopt the plasma torch 7, a fluxing electrode and an immersion burner as heat sources.
The air distribution of the melting furnace is divided into primary air 8, secondary air 9 and tertiary air 10; the primary air 8 comprises a preheating drying area 5, an incineration area 4 and a burnout area 3, and the air distribution quantity is adjusted according to the area temperature; secondary air 9 enters through the plasma torch 7 and decomposes the residual organic matters in the burnout zone 3 again; the tertiary air 10 is based on CO and H in the outlet flue gas2、CH4、O2Adjusting the content of (A); whether the solid waste organic matters in the incineration area 4 adopt gasification reaction or oxidation reaction can be realized by adjusting primary air 8.
The mechanical fire grate can adopt any one of a reverse push type fire grate furnace, a forward push type fire grate furnace or a reciprocating turnover type fire grate furnace, and is selected according to the characteristics of solid waste water, ash content, heat value and the like.
The solid waste enters a mechanical grate of a preheating and drying area 5 through a feeding hole 6, the water in the solid waste is completely evaporated at the temperature of 500-600 ℃ in the area, the light component organic matter is cracked, and the volume of the solid waste is reduced at the moment; then moving to the mechanical grate in the incineration area 4 through the mechanical grate, and ensuring that organic matters in solid waste fully react by adjusting primary air 8 at the temperature of 800-1000 ℃ in the area, wherein oxidation reaction and reduction reaction exist in the process; then moving to a mechanical grate in the burnout zone 3 through the mechanical grate, wherein the temperature in the zone is higher than that in the incineration zone 4 by more than 100 ℃, so as to ensure the full cracking reaction of the refractory organic matters, and at the moment, the organic matters in the solid waste basically react completely; inorganic matters and heavy metals in the residual solid waste enter a melting zone 2, a plasma torch 7 and a fluxing electrode are arranged in the melting zone 2, under the input of energy of the plasma torch and the fluxing electrode, the temperature of the melting zone 2 is ensured to reach 1400-1600 ℃, at the temperature, the inorganic matters in the solid waste are completely melted to be changed into a liquid phase, and finally the liquid phase is discharged through a slag discharge port 11, and the discharged slag can be cooled by water or air to obtain a vitreous body or other building materials; gas generated in the reaction process in the furnace moves to the smoke outlet 1 under the action of outlet negative pressure, tertiary air 10 is arranged in the upper area of the smoke outlet 1, and CO and H in outlet smoke are regulated by the tertiary air 102、CH4、O2Waiting for gas components, and discharging the smoke which meets the requirements out of the furnace through the smoke outlet 1; different burners are arranged in different areas in the furnace, burners and plasma torches 7 are arranged in the preheating drying area 5, the burning area 4 and the burnout area 3 to provide energy, and the requirement of area temperature is met; the melting furnace realizes the separation of the organic matter reaction and the inorganic matter melting area 2 without mutual influence, and has simple adjustment and stable operation.
Example two.
The difference between the embodiment and the first embodiment is that two oppositely arranged material guide plates 13 are hinged to the inner wall of the feed port 6, a connecting cylinder 12 is arranged below each material guide plate 13, the shell of the connecting cylinder 12 is hinged to the inner wall of the feed port 6, a piston rod of the connecting cylinder 12 is hinged to the corresponding material guide plate 13, when materials are poured into the feed port 6, the piston rod of the connecting cylinder 12 contracts, the material guide plates 13 rotate downwards to open the feed port 6, the materials enter the feed port 6, the piston rod extends out after the materials are fed, and the material guide plates 13 close the feed port 6, so that the loss of heat from the feed port 6 is reduced; in addition, the connecting cylinder 12 can drive the material guide plate 13 to rotate back and forth, so that the blockage of the material at the material inlet 6 is avoided.
The preheating drying area, the burning area and the burnout area all convey materials through a mechanical grate, the temperature of the preheating drying area is set to be 550-plus-600 ℃, the temperature of the burning area is set to be 850-plus-950 ℃, the temperature of the burnout area is set to be 920-plus-1100 ℃, the melting area is 1450-plus-1580 ℃, and the mechanical grate can be any one of a reverse-push grate furnace, a forward-push grate furnace or a reciprocating-turning grate furnace.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a grate type plasma gasification melting furnace which characterized in that: the device comprises a feed inlet, wherein a preheating and drying area is connected to the feed inlet, an incineration area is connected to an outlet of the preheating and drying area, an burnout area is arranged at an outlet of the incineration area, a melting area is arranged at an outlet of the burnout area, a discharge port is arranged on the melting area, and a flue gas outlet is arranged above the incineration area.
2. The stoker-type plasma gasification melting furnace according to claim 1, wherein: the preheating and drying area, the burning area and the burnout area all convey materials through a mechanical grate.
3. The stoker-type plasma gasification melting furnace according to claim 1, wherein: the temperature of the preheating and drying zone is set to 500-600 ℃, the temperature of the incineration zone is set to 800-1000 ℃, the temperature of the burn-out zone is set to 900-1100 ℃, and the temperature of the melting zone is set to 1400-1600 ℃.
4. The stoker-type plasma gasification melting furnace according to claim 2, wherein: the mechanical fire grate adopts any one of a reverse-push type fire grate furnace, a forward-push type fire grate furnace or a reciprocating turnover type fire grate furnace.
5. The stoker-type plasma gasification melting furnace according to claim 1, wherein: the inner wall of the feeding hole is hinged with two oppositely arranged guide plates, a connecting cylinder is arranged below each guide plate, a shell of each connecting cylinder is hinged with the inner wall of the feeding hole, and a piston rod of each connecting cylinder is hinged with the corresponding guide plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010552781.0A CN111594850A (en) | 2020-06-17 | 2020-06-17 | Grate type plasma gasification melting furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010552781.0A CN111594850A (en) | 2020-06-17 | 2020-06-17 | Grate type plasma gasification melting furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111594850A true CN111594850A (en) | 2020-08-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010552781.0A Pending CN111594850A (en) | 2020-06-17 | 2020-06-17 | Grate type plasma gasification melting furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111594850A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10267235A (en) * | 1997-03-28 | 1998-10-09 | Takuma Co Ltd | Melt treatment apparatus for incineration residue and fly ash and method thereof |
| US20050166810A1 (en) * | 2002-02-18 | 2005-08-04 | E.E.R. Environmental Energy Resources (Isreal) Lt | Recycling system for a waste processing plant |
| CN104449875A (en) * | 2014-12-09 | 2015-03-25 | 中国东方电气集团有限公司 | Plasma auxiliary-heating melting and gasifying reactor |
| CN209909920U (en) * | 2019-04-28 | 2020-01-07 | 山东博润工业技术股份有限公司 | Novel plasma grate furnace |
| CN212339262U (en) * | 2020-06-17 | 2021-01-12 | 山东新博润环境技术有限公司 | Grate type plasma gasification melting furnace |
-
2020
- 2020-06-17 CN CN202010552781.0A patent/CN111594850A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10267235A (en) * | 1997-03-28 | 1998-10-09 | Takuma Co Ltd | Melt treatment apparatus for incineration residue and fly ash and method thereof |
| US20050166810A1 (en) * | 2002-02-18 | 2005-08-04 | E.E.R. Environmental Energy Resources (Isreal) Lt | Recycling system for a waste processing plant |
| CN104449875A (en) * | 2014-12-09 | 2015-03-25 | 中国东方电气集团有限公司 | Plasma auxiliary-heating melting and gasifying reactor |
| CN209909920U (en) * | 2019-04-28 | 2020-01-07 | 山东博润工业技术股份有限公司 | Novel plasma grate furnace |
| CN212339262U (en) * | 2020-06-17 | 2021-01-12 | 山东新博润环境技术有限公司 | Grate type plasma gasification melting furnace |
Non-Patent Citations (1)
| Title |
|---|
| 冯明驰 等编著: ""锅炉设备运行技术问答"", 31 July 2004, 北京：中国电力出版社, pages: 178 - 179 * |
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