CN112555849A - Horizontal plasma melting furnace - Google Patents
Horizontal plasma melting furnace Download PDFInfo
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- CN112555849A CN112555849A CN202011468754.1A CN202011468754A CN112555849A CN 112555849 A CN112555849 A CN 112555849A CN 202011468754 A CN202011468754 A CN 202011468754A CN 112555849 A CN112555849 A CN 112555849A
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- 238000002844 melting Methods 0.000 title claims abstract description 33
- 230000008018 melting Effects 0.000 title claims abstract description 33
- 239000002893 slag Substances 0.000 claims abstract description 59
- 238000000197 pyrolysis Methods 0.000 claims abstract description 41
- 238000002485 combustion reaction Methods 0.000 claims abstract description 34
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 30
- 239000003546 flue gas Substances 0.000 claims abstract description 30
- 238000010980 drying distillation Methods 0.000 claims abstract description 26
- 230000033116 oxidation-reduction process Effects 0.000 claims abstract description 12
- 239000002994 raw material Substances 0.000 claims description 18
- 238000007599 discharging Methods 0.000 claims description 11
- 238000006479 redox reaction Methods 0.000 claims description 7
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 6
- 238000005485 electric heating Methods 0.000 claims description 6
- 239000007789 gas Substances 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 239000011819 refractory material Substances 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 4
- 238000007254 oxidation reaction Methods 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 3
- 239000001569 carbon dioxide Substances 0.000 claims description 3
- 230000003647 oxidation Effects 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 239000003818 cinder Substances 0.000 claims description 2
- 238000002309 gasification Methods 0.000 abstract description 3
- 238000001035 drying Methods 0.000 abstract description 2
- 239000002699 waste material Substances 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 239000002920 hazardous waste Substances 0.000 description 4
- 239000002910 solid waste Substances 0.000 description 4
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- 238000005516 engineering process Methods 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000009272 plasma gasification Methods 0.000 description 2
- KVGZZAHHUNAVKZ-UHFFFAOYSA-N 1,4-Dioxin Chemical group O1C=COC=C1 KVGZZAHHUNAVKZ-UHFFFAOYSA-N 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
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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
- F23G5/02—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
- F23G5/08—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating
- F23G5/085—High-temperature heating means, e.g. plasma, for partly melting the waste
-
- 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
- F23G5/08—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating
- F23G5/14—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating including secondary combustion
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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
- F23G5/44—Details; Accessories
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J1/00—Removing ash, clinker, or slag from combustion chambers
- F23J1/08—Liquid slag removal
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2201/00—Pretreatment
- F23G2201/10—Drying by heat
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2201/00—Pretreatment
- F23G2201/30—Pyrolysing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2202/00—Combustion
- F23G2202/10—Combustion in two or more stages
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2204/00—Supplementary heating arrangements
- F23G2204/20—Supplementary heating arrangements using electric energy
- F23G2204/201—Plasma
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Gasification And Melting Of Waste (AREA)
Abstract
The invention provides a horizontal plasma melting furnace, wherein the whole furnace body is arranged horizontally, a feed inlet and a flue gas outlet are respectively arranged on two sides of the side wall of the furnace body, and a slag discharge port is arranged at the bottom of the furnace body; the interior of a hearth of the melting furnace is divided into a drying and dry distillation area, an oxidation-reduction area, a combustion area and a slag area, the drying and dry distillation area is positioned on the side of a feed inlet, the oxidation-reduction area is adjacent to the drying and dry distillation area and is positioned in the area where a plasma torch opening is positioned, the slag area is adjacent to the drying and dry distillation area and is positioned at the lower end of the oxidation-reduction area, the bottom of the slag area is provided with a slag discharge opening, and the combustion area is positioned on the side of a flue gas outlet and is longitudinally adjacent to the drying and; and a plasma torch mounting hole is formed in the wall surface of the furnace body where the redox zone is located. The invention integrates gasification melting and secondary combustion into a whole through horizontal design, realizes overall miniaturization, is convenient to transport, can be used for small skid-mounted movable disposal complete equipment, and saves investment.
Description
Technical Field
The invention relates to the technical field of melting furnaces for treating solid wastes, in particular to a horizontal plasma melting furnace.
Background
The plasma melting disposal technology has the advantages of good solid hazardous waste reduction effect (large slag density), low secondary discharge (thorough decomposition of dioxin precursors), high thermal efficiency, no need of secondary landfill of treated residues and the like, is internationally recognized as the most advanced and thorough harmless disposal technology for various wastes at present, is widely used in developed countries in the west, uses plasma high-temperature gasification devices as key and protective equipment for disposing public health emergency crisis events in modern big cities in some cities, is in the technical demonstration stage at home, and is not applied in a large scale. Although the operation cost is high, the technology is more and more favored by the industry because of excellent environmental protection property, and is more and more used for disposing hazardous wastes with low calorific value and high toxicity.
The waste is various in types, complex in characteristics and huge in harm, and the supervision of waste treatment by national teams is increasingly strict. The state advocates enterprises now to deal with self-produced hazardous wastes, the output of most of the enterprises producing the wastes is not large (0.1-1 t/d), the conventional rotary kiln incineration centralized disposal process is not suitable for the self-built hazardous waste disposal devices of the enterprises, the existing plasma furnaces are vertical furnaces and are provided with secondary combustion furnaces, the investment is large, the plasma furnaces are difficult to move after fixed-point installation, and the flexible source disposal modes such as equipment leasing are not facilitated to develop.
Disclosure of Invention
The invention aims to provide a horizontal plasma melting furnace to overcome the defects of high investment, difficult transportation and the like of the conventional vertical furnace. The invention adopts a novel horizontal furnace, can integrate gasification melting and secondary combustion into a whole, has low investment and convenient transportation, and can be used for small skid-mounted movable disposal complete equipment.
The technical scheme of the invention is as follows:
horizontal plasma melting furnace, its characterized in that: the whole furnace body is horizontally arranged, a feed inlet and a flue gas outlet are respectively arranged on two sides of the side wall of the furnace body, and a slag discharge port is arranged at the bottom of the furnace body; the interior of a hearth of the melting furnace is divided into a drying and dry distillation area, a redox area, a combustion area and a slag area, the drying and dry distillation area is positioned on the side of a feed inlet, the redox area is adjacent to the drying and dry distillation area and is positioned in the area where a plasma torch opening is positioned, the slag area is adjacent to the drying and dry distillation area and is positioned at the lower end of the redox area, the bottom of the slag area is provided with a slag discharge opening, and the combustion area is positioned on the side of a flue gas outlet and is longitudinally adjacent to the drying and dry distillation area, the redox area; and a plasma torch mounting hole is formed in the wall surface of the furnace body where the redox zone is located.
Furthermore, at least two plasma torch mounting holes are formed in the wall surface of the furnace body where the redox zone is located, the plasma torch mounting holes can be symmetrically arranged on the same horizontal position, namely a plurality of plasma torch mounting holes can be formed in the side wall of the furnace body, and plasma torches are mounted as required.
Furthermore, a first combustion-supporting tuyere is also arranged on the wall surface of the furnace body where the redox zone is located, the first combustion-supporting tuyere is close to an adjacent line of the redox zone and the drying and dry distillation zone, and the heights of the first combustion-supporting tuyere and a mounting hole for mounting the plasma torch are consistent; and air is introduced into the combustion-supporting air port I.
Furthermore, a combustion-supporting tuyere II is also arranged on the wall surface of the furnace body where the slag zone is located, and the combustion-supporting tuyere II is lower than the plasma torch mounting hole; and air is introduced into the combustion-supporting air inlet through a second air inlet.
Furthermore, an after-combustion air port is arranged on the wall surface of the furnace body where the combustion zone is located, and the after-combustion air port is close to the adjacent lines of the combustion zone, the drying and dry distillation zone, the oxidation-reduction zone and the slag zone; and air is sprayed into the over-fire air inlet.
Further, the whole wall of furnace body includes the refractory material of outer steel casing and inlayer, and whole wall includes top surface, lateral wall and bottom surface, and the top surface is the horizontal wall, and the lateral wall is vertical wall, and the bottom surface includes the horizontal segment wall that leaks hopper-shaped wall and be close to the flue gas outlet side that is close to the feed inlet side, and the cinder notch is located the bottom that leaks hopper-shaped wall.
Furthermore, the lower end of the slag discharge port is provided with a spiral electric heating plate arranged along the wall of the conical cavity.
Furthermore, a boosting device can be arranged at the feed inlet according to the requirement to provide thrust for the raw materials fed into the melting furnace.
According to the moving direction of the raw materials entering the hearth, the raw materials enter the hearth from the feeding hole and then enter the drying and dry distillation area, the raw materials enter the redox area after being dried and dry distilled in the drying and dry distillation area, the raw materials undergo redox reaction in the redox area, and the raw materials enter the combustion area for full combustion after the redox reaction; inorganic matters in the raw materials are melted into liquid and flow out from a slag discharge port, the organic matters in the raw materials are subjected to dry distillation, pyrolysis and oxidation to form high-temperature flue gas containing carbon dioxide and water vapor, and the high-temperature flue gas is discharged from a flue gas outlet. Aiming at the melting furnace, the reaction temperature of the oxidation-reduction area is 900-1100 ℃, the temperature of the high-temperature flue gas passing through the flue gas outlet is greater than 950 ℃, and the temperature of the slag discharge port is greater than 1000 ℃.
The invention has the following technical effects:
(1) the melting furnace is horizontally arranged, so that the integral miniaturization is realized, and the movement is convenient;
(2) the waste is directly gasified and combusted in the furnace, and compared with the traditional plasma gasification vertical furnace, the vertical type plasma gasification furnace has the advantages of simple structure, more reasonable reaction and more investment cost saving;
(3) through horizontal arrangement, the melting furnace operates in a micro negative pressure mode, part of air enters from the slag discharge port and reacts with carbon particles in the slag pool, and the carbon content in slag can be obviously reduced;
(4) the electric heating disc arranged at the lower part of the slag discharging port can effectively prevent the slag discharging port from being blocked and realize stable and continuous slag discharging;
(5) and a combustion-supporting air port II is arranged at the lower part of the plasma torch, and oxygen enrichment or pure oxygen can be adopted according to actual site conditions, so that the power consumption of the plasma torch is reduced, and the carbon burnout rate is improved.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
FIG. 2 is a schematic view of the zones in the furnace of the present invention.
Wherein: 1-a steel shell, 2-refractory materials, 3-an electric heating plate, 4-an after-combustion tuyere, 5-a plasma torch mounting hole, 6-a combustion-supporting tuyere II, 7-a combustion-supporting tuyere I, 8-a feed inlet, 9-a flue gas outlet and 10-a slag discharge port.
Detailed Description
Example 1
As shown in fig. 1, in the horizontal plasma melting furnace provided by this embodiment, the whole furnace body is arranged horizontally, a feed inlet 8 and a flue gas outlet 9 are respectively arranged on two sides of the side wall of the furnace body, and a slag discharge port 10 is arranged at the bottom of the furnace body.
As shown in FIG. 2, the interior of the hearth of the melting furnace is divided into a dry distillation zone, a redox zone, a slag zone and a combustion zone, and the dry distillation zone, the redox zone, the combustion zone and the slag zone are not clearly divided into layers in the melting furnace. The dry distillation area is positioned on the side of the feed port 8, the redox area is adjacent to the dry distillation area and is positioned in the area where the plasma torch mouth is positioned, the slag area is adjacent to the dry distillation area and is positioned at the lower end of the redox area, the bottom of the slag area is provided with a slag discharge port 10, and the combustion area is positioned on the side of the flue gas outlet 9 and is longitudinally adjacent to the dry distillation area, the redox area and the slag area; at least two plasma torch mounting holes 5 are arranged on the wall surface of the furnace body where the oxidation-reduction zone is located.
The plasma torch mounting holes 5 can be symmetrically arranged on the same horizontal position, namely a plurality of plasma torch mounting holes 5 are arranged on the side wall of the furnace body, and plasma torches are mounted as required. In this embodiment, two plasma torches are selected to be symmetrically installed.
According to the moving direction of the raw materials entering the hearth, the raw materials enter the drying and dry distillation area after entering the hearth from the feeding hole 8, enter the redox area after being dried and dry distilled in the drying and dry distillation area, carry out redox reaction in the redox area, and enter the combustion area for full combustion after the redox reaction; inorganic matters in the raw materials are melted into liquid and flow out from a slag discharge port 10, the organic matters in the raw materials are subjected to dry distillation, pyrolysis and oxidation to form high-temperature flue gas containing carbon dioxide and water vapor, and the high-temperature flue gas is discharged from a flue gas outlet 9.
Aiming at the melting furnace, the reaction temperature of the oxidation-reduction zone is 900-1100 ℃, the temperature of the high-temperature flue gas passing through the flue gas outlet 9 is greater than 950 ℃, and the temperature of the slag discharge hole 10 is greater than 1000 ℃.
Example 2
On the basis of the embodiment 1, a combustion-supporting tuyere I7 is also arranged on the wall surface of the furnace body where the oxidation-reduction zone is positioned. The combustion-supporting tuyere I7 is close to the adjacent line of the oxidation-reduction area and the drying and carbonization area, and the heights of the combustion-supporting tuyere I7 and the installation hole 5 for installing the plasma torch are consistent.
Example 3
On the basis of the embodiment 1 or 2, a combustion-supporting tuyere II 6 can be arranged on the wall surface of the furnace body where the slag zone is positioned. And the height of the combustion-supporting tuyere II 6 is lower than that of the plasma torch mounting hole 5.
Example 4
On the basis of any structure of the embodiments 1-3, an after-combustion tuyere 4 can be arranged on the wall surface of the furnace body where the combustion zone is positioned, and the after-combustion tuyere 4 is close to the adjacent lines of the combustion zone, the dry distillation zone, the oxidation-reduction zone and the slag zone.
Example 5
On the basis of any structure of the embodiments 1 to 4, as shown in fig. 1 to 2, the whole wall surface of the furnace body comprises an outer steel shell 1 and an inner layer of refractory material 2, the whole wall surface comprises a top surface, a side wall and a bottom surface, the top surface is a horizontal wall surface, the side wall is a vertical wall surface, the bottom surface comprises a funnel-shaped wall surface close to the feed port 8 side and a horizontal section wall surface close to the flue gas outlet 9 side, and the slag discharge port 10 is positioned at the bottom of the funnel-shaped wall surface.
Furthermore, the slag discharging port 10, a conical cavity at the lower end of the slag discharging port 10 and a cylindrical cavity of the conical cavity are formed by building through refractory materials. In the conical cavity, a helical electric heating plate 3 is arranged along the cavity wall.
Example 6
On the basis of any structure of the embodiments 1 to 5, a boosting device can be arranged at the position of the feeding hole 8 according to requirements to provide the thrust for the raw materials fed into the melting furnace.
The reaction steps in the respective zones of the melting furnace are as follows:
(1) dry distillation zone
The crushed raw materials enter the melting furnace from a feeding hole 8 and enter a drying and dry distillation area by virtue of thrust, high-temperature gas is generated in the area, the high-temperature gas is contacted with solid waste at the middle lower part of the area, the solid waste is heated to remove moisture, the moisture is further heated and decomposed, and volatile matters in the solid waste, such as tar, medium oil, phenol, ammonia, fatty acid and other macromolecular organic matters, are further released.
(2) Redox zone
The material obtained after drying and dry distillation moves to the vicinity of the plasma torch, and is subjected to oxidation-reduction reaction with air (rich oxygen or oxygen) entering from the combustion-supporting tuyere I7 to generate flue gas containing part of combustible gas.
(3) Combustion zone
The gas generated from the dry distillation zone and the redox zone contains unburned carbon particles and CO and H2And after the combustible gas and the air sprayed in through the over-fire air nozzle continuously carry out oxidation reaction, high-temperature flue gas is generated after complete combustion, and then the flue gas is discharged from a flue gas outlet 9.
(4) Slag zone
Liquid ash and slag generated from the combustion zone enter the slag zone by virtue of gravity and the funnel-shaped wall surface to form a slag pool, air is introduced through the combustion-supporting air port II 6, high-temperature flame is generated through the plasma torch at the upper end (the core temperature is higher than 5000 ℃), the temperature of the slag pool can be maintained to be kept above the flowing temperature, and the slag can be conveniently discharged from an inspection port. In order to prevent the slag from being cooled and solidified at the slag discharging port 10 by cold air after flowing out and causing the blockage of the slag discharging port 10, the high temperature of the slag discharging outlet region can be maintained through the electric heating plate 3 at the lower end of the slag discharging port 10.
Claims (9)
1. Horizontal plasma melting furnace, its characterized in that: the whole furnace body is horizontally arranged, a feed inlet (8) and a flue gas outlet (9) are respectively arranged on two sides of the side wall of the furnace body, and a slag discharge port (10) is arranged at the bottom of the furnace body; the hearth of the melting furnace is divided into a drying and dry distillation area, a redox area, a combustion area and a slag area, the drying and dry distillation area is positioned on the side of the feed inlet (8), the redox area is adjacent to the drying and dry distillation area and is positioned in the area where the plasma torch mouth is positioned, the slag area is adjacent to the drying and dry distillation area and is positioned at the lower end of the redox area, the bottom of the slag area is provided with a slag discharge port (10), and the combustion area is positioned on the side of a flue gas outlet (9) and is longitudinally adjacent to the drying and dry distillation area, the redox area and the slag area; a plasma torch mounting hole (5) is arranged on the wall surface of the furnace body where the redox zone is located;
according to the moving direction of the raw materials entering the hearth, the raw materials enter the drying and dry distillation area after entering the hearth from the feeding hole (8), enter the redox area after being dried and dry distilled in the drying and dry distillation area, carry out redox reaction in the redox area, and enter the combustion area for full combustion after the redox reaction; inorganic matters in the raw materials are melted into liquid and flow out from a slag discharge port (10), the organic matters in the raw materials are subjected to dry distillation, pyrolysis and oxidation to form high-temperature flue gas containing carbon dioxide and water vapor, and the high-temperature flue gas is discharged from a flue gas outlet (9).
2. The horizontal plasma melting furnace of claim 1, wherein: at least two plasma torch mounting holes (5) are formed in the wall surface of the furnace body where the redox zone is located, and the plasma torch mounting holes (5) can be symmetrically arranged on the same horizontal position.
3. The horizontal plasma melting furnace of claim 1 or 2, wherein: a first combustion-supporting tuyere (7) is also arranged on the wall surface of the furnace body where the redox zone is located, the first combustion-supporting tuyere (7) is close to the adjacent line of the redox zone and the drying and dry distillation zone, and the heights of the first combustion-supporting tuyere (7) and the mounting hole (5) for mounting the plasma torch are consistent; and air is introduced into the combustion-supporting air port I (7).
4. The horizontal plasma melting furnace of claim 1 or 2, wherein: a combustion-supporting tuyere II (6) is also arranged on the wall surface of the furnace body where the slag zone is located, and the combustion-supporting tuyere II (6) is lower than the plasma torch mounting hole (5); and air is introduced into the combustion-supporting air port II (6).
5. The horizontal plasma melting furnace of claim 1, wherein: an after-combustion air port (4) is arranged on the wall surface of the furnace body where the combustion zone is located, and the after-combustion air port (4) is close to the adjacent lines of the combustion zone, the drying and dry distillation zone, the oxidation-reduction zone and the slag zone; and the air is sprayed into the over-fire air inlet (4).
6. The horizontal plasma melting furnace of claim 1, wherein: the whole wall of furnace body includes outer steel casing (1) and the refractory material (2) of inlayer, and whole wall includes top surface, lateral wall and bottom surface, and the top surface is the horizontal wall, and the lateral wall is vertical wall, and the bottom surface includes the horizontal segment wall that leaks hopper-shaped wall and be close to exhanst gas outlet (9) side that is close to feed inlet (8) side, arranges cinder notch (10) and is located the bottom that leaks hopper-shaped wall.
7. The horizontal plasma melting furnace of claim 1, wherein: the lower end of the slag discharging port (10) is provided with a spiral electric heating plate (3) which is arranged along the wall of the conical cavity.
8. The horizontal plasma melting furnace of claim 1, wherein: and a boosting device is arranged at the feed port (8).
9. The horizontal plasma melting furnace of claim 1, wherein: the reaction temperature of the oxidation-reduction zone is 900-1100 ℃, the temperature of the high-temperature flue gas passing through the flue gas outlet (9) is higher than 950 ℃, and the temperature of the slag discharging port (10) is higher than 1000 ℃.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011468754.1A CN112555849A (en) | 2020-12-15 | 2020-12-15 | Horizontal plasma melting furnace |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011468754.1A CN112555849A (en) | 2020-12-15 | 2020-12-15 | Horizontal plasma melting furnace |
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0857441A (en) * | 1994-08-19 | 1996-03-05 | Hitachi Zosen Corp | Plasma type ash melting furnace and restarting thereof |
| KR20000045561A (en) * | 1998-12-30 | 2000-07-25 | 권상문 | Plasma melting method and device |
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| CN210267234U (en) * | 2019-06-14 | 2020-04-07 | 马加德 | Solid waste gasification melting incineration system based on double molten pools |
| CN214223106U (en) * | 2020-12-15 | 2021-09-17 | 东方电气洁能科技成都有限公司 | Horizontal plasma melting furnace |
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2020
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| JPH0857441A (en) * | 1994-08-19 | 1996-03-05 | Hitachi Zosen Corp | Plasma type ash melting furnace and restarting thereof |
| KR20000045561A (en) * | 1998-12-30 | 2000-07-25 | 권상문 | Plasma melting method and device |
| CN2563442Y (en) * | 2002-07-23 | 2003-07-30 | 洪文虎 | Waste material incinerator |
| CN200982640Y (en) * | 2006-09-29 | 2007-11-28 | 宜兴市张泽浇注耐火材料厂 | Melting furnace for permanent harmless treatment of refuse burning fly ash |
| CN109478438A (en) * | 2016-07-28 | 2019-03-15 | 特瑞博有限公司 | Hermetic type plasma melting furnace for low-level radioactive waste in handling |
| CN207831365U (en) * | 2017-12-15 | 2018-09-07 | 武汉高斯生态能源技术有限公司 | Handle the device of waste |
| CN108613199A (en) * | 2018-07-05 | 2018-10-02 | 上海环境工程设计研究院有限公司 | A kind of dangerous waste incineration melting integrated apparatus |
| CN110848710A (en) * | 2018-08-21 | 2020-02-28 | 中国电子科技集团公司第四十八研究所 | Photothermal medical garbage incinerator |
| CN110274246A (en) * | 2019-05-24 | 2019-09-24 | 中广核环境科技(深圳)有限责任公司 | A kind of gasification burning melting all-in-one oven |
| CN210267234U (en) * | 2019-06-14 | 2020-04-07 | 马加德 | Solid waste gasification melting incineration system based on double molten pools |
| CN214223106U (en) * | 2020-12-15 | 2021-09-17 | 东方电气洁能科技成都有限公司 | Horizontal plasma melting furnace |
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