CN204848776U - Telescopic plasma gasification reaction stove - Google Patents
Telescopic plasma gasification reaction stove Download PDFInfo
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- CN204848776U CN204848776U CN201520578866.0U CN201520578866U CN204848776U CN 204848776 U CN204848776 U CN 204848776U CN 201520578866 U CN201520578866 U CN 201520578866U CN 204848776 U CN204848776 U CN 204848776U
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 46
- 238000009272 plasma gasification Methods 0.000 title claims abstract description 23
- 239000010813 municipal solid waste Substances 0.000 claims abstract description 152
- 238000002309 gasification Methods 0.000 claims abstract description 84
- 238000001035 drying Methods 0.000 claims abstract description 78
- 238000002844 melting Methods 0.000 claims abstract description 66
- 230000008018 melting Effects 0.000 claims abstract description 66
- 238000000197 pyrolysis Methods 0.000 claims abstract description 24
- 238000004519 manufacturing process Methods 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 20
- 238000009413 insulation Methods 0.000 claims description 13
- 239000000779 smoke Substances 0.000 claims description 12
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000011449 brick Substances 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 229910052593 corundum Inorganic materials 0.000 claims description 8
- 239000010431 corundum Substances 0.000 claims description 8
- 238000002485 combustion reaction Methods 0.000 claims description 6
- 230000009970 fire resistant effect Effects 0.000 claims description 4
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 3
- 239000010962 carbon steel Substances 0.000 claims description 3
- 238000005266 casting Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 239000010791 domestic waste Substances 0.000 abstract description 6
- 235000008733 Citrus aurantifolia Nutrition 0.000 abstract 4
- 235000011941 Tilia x europaea Nutrition 0.000 abstract 4
- 239000004571 lime Substances 0.000 abstract 4
- 238000010438 heat treatment Methods 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 28
- 238000000034 method Methods 0.000 description 25
- 238000005516 engineering process Methods 0.000 description 11
- 239000002893 slag Substances 0.000 description 8
- 239000002699 waste material Substances 0.000 description 8
- 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 7
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 6
- 239000003546 flue gas Substances 0.000 description 6
- 239000007787 solid Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 239000010935 stainless steel Substances 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 229910001385 heavy metal Inorganic materials 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 150000002240 furans Chemical class 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000002361 compost Substances 0.000 description 1
- 238000009264 composting Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 208000020442 loss of weight Diseases 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000012958 reprocessing Methods 0.000 description 1
- 230000002000 scavenging effect Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
- 239000006200 vaporizer Substances 0.000 description 1
- 238000004056 waste incineration Methods 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
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- Gasification And Melting Of Waste (AREA)
Abstract
The utility model discloses a telescopic plasma gasification reaction stove, including rubbish loading attachment, rubbish cylinder drier, pyrolysis gasification reaction room, lime -ash melting room, the feeding of rubbish loading attachment, the dry rubbish of rubbish cylinder drier, rubbish after the pyrolysis gasification reaction room pyrolysis drying, air cooperation plasma torch heating that lime -ash melting room let in through the air inlet rubbish after to the pyrolysis gasification carries out the secondary gasification, telescopic plasma gasification reaction stove's gasification utilizes plasma torch as the lime -ash melting of outer heat source with domestic waste pyrolysis gasification back production to the sensible heat that utilizes the high temperature synthetic gas of gasification back production removes dry domestic waste, garbage pyrolytic gasification or the pneumatolytic high temperature gasification agent of lime -ash melting can be regarded as to the dry steam that produces, effectively realize the comprehensive utilization of rubbish heat energy, get rid of the harmful substance that domestic waste produced in the pyrolysis gasification.
Description
Technical field
The utility model relates to the gasification gas making technology of the solid-state castoff based on domestic waste, specifically a kind of sleeve-type plasma gasification Reaktionsofen and gasifying process thereof that can prevent dioxin generation and heavy metal secondary pollution.
Background technology
Along with the sustainable growth of global economy and the acceleration of urbanization process, the generation of domestic refuse has become a day by day serious environmental problem.The continuous increase of municipal wastes output and the environmental pollution caused thereof have become the problem of institute of various countries facing, and the harmless treatment of domestic waste promotes one of economy and the ecotope important measures reaching Sustainable development.
At present, domestic waste innoxious process for treating has composting technology, Landfill, incineration technology and gasification technology etc.Landfill or compost all can not realize the innoxious of refuse treatment and minimizing completely, and landfill still needs to take a large amount of soil.Because burning disposal can realize municipal wastes energy recovery, subtract the objects such as appearance, loss of weight, high-temperature sterilization, there is obvious advantage in environment protection and the utilization of resources, thus developed faster in China in recent years.But waste incineration causes the secondary pollution problems such as dioxin and heavy metal can not be ignored, and constrains the large-scale application of garbage incineration technology.
Gasification technology is a kind of novel technology of garbage disposal, and compared with the waste disposal method of routine, Gasification Technique has that energy recovery utilization ratio is high, secondary pollution is little, exhaust gas volumn is little, finishing apparatus is simple.Such as: publication number is CN104449854A, publication date is the Chinese patent literature on March 25th, 2015, disclose a kind of integral type rubbish plasma gasification stove with water wall, vapourizing furnace burner hearth is divided into the waste residue melting zone of the synthetic gas reformer section on top, the gasification zone at middle part and bottom; The inherent same level in synthetic gas reformer section is evenly provided with three plasma torchs one; The side of gasification zone is connected with feed system, and side is also provided with inlet mouth, and bottom surface is provided with the fire grate for carrying rubbish; Be provided with in the middle of the side of waste residue melting zone three around plasma torch two.Again such as: publication number is CN103254939A, publication date is the Chinese patent literature on August 21st, 2013, disclose a kind of plasma body rubbish biomass gasification device, relate to plasma gasification furnace apparatus, comprise plasma gasification stove and feeding screw, primarily of lower furnace body, negative electrode, anode, upper furnace body and top cover are formed, wherein, the You Liao chamber, bottom of lower furnace body, negative electrode is arranged on the top in lower furnace body, the inner chamber of negative electrode communicates with the material chamber in lower furnace body, the cylinder upper end of negative electrode is bell mouth shape, there is eddy flow groove bell-mouthed outer, upper furnace body is connected to the upper end of lower furnace body, anode is arranged in upper furnace body, the axial centre of anode has through hole, the through hole of anode axial centre forms compression duct, watercooling jacket is had in the rotary structure wall body of anode, the V-shaped anchor ring in termination of anode bottom, there is gap in the hydraucone that the V-ring face of anode bottom extend into negative electrode upper end, top cover is arranged on the upper surface of anode and upper furnace body, top cover has synthetic gas output interface.The vapourizing furnace of this kind of scheme all can make traditional gasification, synthetic gas reform to be melted in a vapourizing furnace with waste residue to complete, and utilizes rubbish self calorific value first to carry out traditional gasification.Gasification makes while being used to the organic composition of rubbish with the combination of plasma melting treatment technology, stabilization harmless treatment and recycling can be carried out to inorganic components, thus fundamentally solve the secondary pollution such as dioxin and heavy metal problem, there is vast potential for future development.
But the plasma refuse gasification technology of present stage still has many weak points.First, need greatly power with plasma torch direct gasification rubbish, its specific power consumption can arrive 30% ~ 40% of its electrogenesis power, causes operation cost greatly to increase because power consumption is too high, makes it not possess commercial off-the-shelf and is worth.Its two, the method gasification rubbish, subsequent gases scavenging process also needs Jia dioxin treatment unit, adds disposable input in advance, and its equipment cost is significantly improved.3rd, use plasma torch direct gasification rubbish, because its thermo parameters method is uneven, rubbish completely by pyroprocessing, can not be had a large amount of dioxin and other objectionable impuritiess, cause the process of its waste residue to become a difficult problem again in the waste residue of discharge.
Utility model content
The defect that the utility model exists for existing plasma gasification technology and deficiency, provide a kind of sleeve-type plasma gasification Reaktionsofen and gasifying process thereof, utilize the ash melting that plasma torch will produce after domestic garbage pyrolysis gasification as high-quality external heat source, and the sensible heat of the high-temperature synthesis gas produced after utilizing gasification goes dry domestic refuse; The dry water vapor produced can be used as the high temperature gasification agent of refuse pyrolysis gasification or ash melting gasification, effectively achieve the comprehensive utilization of rubbish heat energy, eliminate domestic refuse issuable all objectionable impuritiess in pyrolytic gasification process, reduce disposable input cost and the operation cost of rubbish plasma gasification, and make synthetic gas purer.
The technical solution of the utility model is as follows:
A kind of sleeve-type plasma gasification Reaktionsofen, it is characterized in that: comprise feeding garbage device, drying garbage cylinder, pyrolytic gasification reaction chamber, ash melting room, drying garbage cylinder is the resistant to elevated temperatures stainless steel cylinder of cylindrical shape being horizontally placed on pyrolytic gasification reaction chamber inner upper, the left end of drying garbage cylinder is positioned at the outside of pyrolytic gasification reaction chamber body of heater, the left-hand end of drying garbage cylinder is connected with the feed hopper bottom of feeding garbage device, and bottom drying garbage cylinder, right side opening is provided with garbage discharge outlet; Described pyrolytic gasification reaction chamber is divided into the Semicircular arched structure on top, the structure of installation drying garbage cylinder at middle part and the pyrolysis and combustion room of bottom in the vertical, the bottom of pyrolysis and combustion room is provided with fire grate, fire grate adopts belt traveling-grate stoker to supply dried rubbish, and the left bottom of pyrolytic gasification reaction chamber is communicated with ash melting room; Ash melting room is cylindric, ash melting room is evenly arranged the multiple plasma torch installing ports being in same level, plasma torch installing port is all provided with plasma torch, angle between the medullary ray of plasma torch installing port and the vertical center line of ash melting room is γ angle, γ angle is 50-70 °, the angle of the medullary ray of plasma torch installing port and the horizontal center line of ash melting room is δ angle, and δ angle is 30-50 °; Ash melting room is evenly arranged the multiple gas inlets being in another same level, angle between the medullary ray of gas inlet and the vertical center line of ash melting room is ε angle, ε angle is 50-70 °, the medullary ray of gas inlet and the horizontal centre line parallel of ash melting room; Described gas inlet is higher than plasma torch installing port.
The upper end of the right-hand end of described drying garbage cylinder is provided with water vapor vent pipe, and below drying garbage cylinder axis, place offers screw feeder axis hole.
Screw feeder conveying garbage is adopted in described drying garbage cylinder, the overall arranged off-centre of screw feeder is in drying garbage cylinder, the two ends of the central shaft of screw feeder adopt shaft seal and sliding surface bearing to be fixed on two end faces of drying garbage cylinder, the spindle nose of right-hand member adds seal cap sealing, the spindle nose that left end is positioned at drying garbage cylinder outside is connected with motor, is controlled the rotating speed of screw feeder by frequency transformer as required.Screw feeder adopts resistant to elevated temperatures stainless steel to make.
Described feeding garbage device comprises rubbish feed bin, hopper and fire door, and hopper is located at the upper end of drying garbage drum outer wall, and the opening for feed of hopper is rectangle, and fire door is arranged at the junction of rubbish feed bin and hopper.The both sides of described hopper are perpendicular to the axis of drying garbage cylinder, and certain angle is inwardly shunk in another both sides, and rubbish can be made to slide to screw feeder by self gravitation.Described rubbish feed bin is placed in the top of hopper, is round shape.During feed, rubbish is pushed in drying garbage cylinder by the material feeder rubbish dropped in rubbish hopper, and is isolated by fire door and rubbish feed bin.Fire door keeps closing condition when material feeder is regained, and closes fire door and drying garbage cylinder and the external world can be made to separate.
Described pyrolytic gasification reaction chamber comprises shell, thermal insulation layer and inwall, and shell is that carbon steel steel plate is made, and thermal insulation layer is between shell and inwall, and inwall is refractory brick.
The side of described Semicircular arched structural top is provided with vertical heat smoke relief outlet, and inwall refractory brick and thermal insulation layer can to reduce the loss of heat.Top design overarches and can ensure that heat smoke is pooled to top and discharges from smoke discharge tube smoothly.
Described ash melting room comprises integrated poured high temperature resistant corundum lining, the refractory brick of one-piece casting, thermal insulation layer, housing from the inside to the outside successively, and described housing can adopt steel matter.The housing upper of ash melting room and the bottom shell of pyrolytic gasification reaction chamber are welded to connect.
The bottom of described ash melting room is cone structure, and collect rubbish slag to facilitate, the cone angle of cone structure is ε, ε is 130-150 °.
The bottom of the cone structure of described ash melting room has a slag-drip opening, and slag-drip opening is a long narrow laryngeal inlet, and laryngeal inlet is a tapered tube, and the cone angle of tapered tube is 6-10 °.Described slag-drip opening comprises inner and outer wall, and inwall is fire-resistant corundum lining, and outer wall is refractory liner and steel plate.
The mouth of pipe place, tapered tube upper end of described slag-drip opening is provided with discharge opeing lid, the discharge opeing lid beautiful integral manufacturing of resistant to elevated temperatures height; Described discharge opeing covers and is symmetrically arranged with the outage that several apertures are 10-20mm.
Gasifying process process of the present utility model is:
1, the rubbish without sorting is encased in the feed bin of feeding garbage device, falls to screw feeder, is slowly pushed in drying garbage cylinder by the rubbish dropping into hopper by screw feeder, and isolated by fire door and drying garbage cylinder through feed bin;
2, the rubbish after drying garbage cylinder inner drying is pushed to garbage discharge outlet by screw feeder, drops on the fire grate of pyrolytic gasification reaction chamber, participates in pyrolysis, gasification, burning, and produces water vapor, is rich in H
2with the domestic refuse of the solid residue produced after the pyrolysis smoke of CO, pyrolytic gasification and non-complete reaction, water vapor is discharged out of the furnace by the water vapor vent pipe of drying garbage cylinder right-hand member;
3, the domestic refuse of solid residue and non-complete reaction is transported to ash melting room through chain furnace grate; Indoor at ash melting, there is pyrolytic gasification further under the high temperature heat source that the domestic refuse of solid residue and non-complete reaction provides at plasma torch and react; After pyrolytic gasification reaction, the high temperature that the remaining residue of after-flame provides through plasma torch carries out melting, and utilize high temperature organism unreacted in the slag of ash melting indoor and objectionable impurities again to be gasified, and remove dioxin and furans in slag, the inorganics and the metal that finally become molten state discharge plasma gasification Reaktionsofen by slag-drip opening.
In said process, in drying garbage cylinder, the heat of garbage drying comes from the heat of the high-temperature flue gas that pyrolytic gasification reaction chamber and the pyrolysis of ash melting indoor refuse, gasification, burning produce.
In said process, the bottom outside of drying garbage cylinder accepts the heat of the high-temperature flue gas of pyrolytic gasification reaction chamber, and the heat of high-temperature flue gas imports in drying garbage cylinder for garbage drying through the barrel of drying garbage cylinder; The water vapor that drying garbage produces is discharged out of the furnace by the water vapor vent pipe of drying garbage cylinder right-hand member; The water vapor of discharging can be passed into pyrolytic gasification reaction chamber or gasify for refuse pyrolysis as high-temperature steam in ash melting room.
In said process, indoor at ash melting, the air required for after-flame of the unreacted carbon residue of pyrolytic gasification is supplemented by gas inlet.
In said process, the synthetic gas that second gasification in ash melting indoor and after-flame produce and the synthetic gas that pyrolytic gasification reaction chamber produces upwards are collected by top arcuate burner hearth after the heat exchange of drying garbage cylinder is lowered the temperature, and enter into follow-up synthetic gas utilize system by smoke discharge tube discharge.
The beneficial effects of the utility model are:
(1) lime-ash that the utility model adopts sidepiece charging, top exhaust, bottom slagging structure make the toxic and harmful in refuse gasification process getting rid of, produce after pyrolytic gasification is become harmless vitreous state slag through gasification and melting room by the high-temperature fusion that plasmatorch produces, and solves noxious gas emission and lime-ash in incineration treatment of garbage process thoroughly and needs the problem of reprocessing.
(2) the utility model utilizes the sensible heat of the high-temperature synthesis gas after plasmatorch gasification reaction to carry out drying, preheating to rubbish in dry sleeve; The water vapor that heat drying produces simultaneously to the pyrolytic gasification entering pyrolysis vaporizer or ash melting room participation rubbish, can realize high-temperature water vapor gasification, improves the thermo-efficiency of plasma reactor.
(3) the utility model utilizes the calorific value of rubbish self to carry out anoxycausis pyrolytic gasification, carries out plasma pyroprocessing afterwards, this avoid plasma high temperature and directly carry out pyrolytic gasification to rubbish, greatly reduce power consumption the slag that it produces.
Accompanying drawing explanation
Fig. 1 is longitudinal profile structural representation of the present utility model;
Fig. 2 is the A-A cross section schematic diagram in Fig. 1;
Fig. 3 is the B-B cross section schematic diagram in Fig. 1;
Fig. 4 is the I partial enlargement intention in Fig. 1;
Fig. 5 is the C-C cross section schematic diagram in Fig. 1.
Wherein, Reference numeral is: 1 feeding garbage device, 1-1 hopper, 1-2 rubbish feed bin, 1-3 fire door, 2 drying garbage cylinders, 2-1 screw feeder, 2-2 garbage discharge outlet, 2-3 sliding surface bearing, the central shaft of 2-4 screw feeder, 2-5 motor, 2-6 water vapor vent pipe, 3 pyrolytic gasification reaction chambers, 3-1 inwall, 3-2 thermal insulation layer, 3-3 shell, 3-4 smoke discharge tube, 3-5 fire grate, 4 ash melting rooms, 4-1 is high temperature resistant corundum lining, 4-2 refractory brick, 4-3 thermal insulation layer, 4-4 Steel Sheel, 4-5 plasma torch installing port, 4-6 gas inlet, 5 slag-drip openings, the fire-resistant corundum lining of 5-1, 5-2 refractory liner, 5-3 steel plate, 5-4 discharge opeing lid, 5-5 outage.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model is described in further detail:
As Figure 1-4, a kind of sleeve-type plasma gasification Reaktionsofen, comprises feeding garbage device 1, drying garbage cylinder 2, refuse pyrolysis gasification reactor chamber 3, ash melting room 4.
Drying garbage cylinder 2 is the resistant to elevated temperatures stainless steel cylinders of cylindrical shape being horizontally placed on pyrolytic gasification reaction chamber 3 inner upper, the left end of drying garbage cylinder 2 is positioned at the outside of pyrolytic gasification reaction chamber 3 body of heater, the left-hand end of drying garbage cylinder 2 is connected with the feed hopper bottom of feeding garbage device, and bottom drying garbage cylinder 2, right side opening is provided with garbage discharge outlet 2-2; Described pyrolytic gasification reaction chamber 3 is divided into the Semicircular arched structure on top, the structure of installation drying garbage cylinder 2 at middle part and the pyrolysis and combustion room of bottom in the vertical, the bottom of pyrolysis and combustion room is provided with fire grate 3-5, fire grate 3-5 adopts belt traveling-grate stoker to supply dried rubbish, and the left bottom of pyrolytic gasification reaction chamber 3 is communicated with ash melting room 4; Ash melting room 4 is cylindric, ash melting room 4 is evenly arranged the multiple plasma torch installing port 4-5 being in same level, plasma torch installing port 4-5 is all provided with plasma torch, angle between the medullary ray of plasma torch installing port 4-5 and the vertical center line of ash melting room 4 is γ angle, γ angle is 50-70 °, the angle of the medullary ray of plasma torch installing port 4-5 and the horizontal center line of ash melting room 4 is δ angle, and δ angle is 30-50 °; Ash melting room 4 is evenly arranged the multiple gas inlet 4-6 being in another same level, angle between the medullary ray of gas inlet 4-6 and the vertical center line of ash melting room 4 is ε angle, ε angle is 50-70 °, the medullary ray of gas inlet 4-6 and the horizontal centre line parallel of ash melting room 4; Described gas inlet 4-6 is higher than plasma torch installing port 4-5.
The number of described plasma torch installing port 4-5 can be two, also can be three, also can be four, or more, arranges as the case may be.
The number of described gas inlet 4-6 can be four, or six, or eight, or ten, or more, arrange as the case may be.
The upper end of the right-hand end of described drying garbage cylinder 2 is provided with water vapor vent pipe 2-6, and below drying garbage cylinder 2 axis, place offers screw feeder 2-1 axis hole.
Screw feeder 2-1 conveying garbage is adopted in described drying garbage cylinder 2, the overall arranged off-centre of screw feeder 2-1 is in drying garbage cylinder 2, the two ends of the central shaft 2-4 of screw feeder 2-1 adopt shaft seal and sliding surface bearing 2-3 to be fixed on two end faces of drying garbage cylinder 2, the spindle nose of right-hand member adds seal cap sealing, the spindle nose that left end is positioned at drying garbage cylinder 2 outside is connected with motor 2-5, is controlled the rotating speed of screw feeder 2-1 by frequency transformer as required.Screw feeder 2-1 adopts resistant to elevated temperatures stainless steel to make.
Described feeding garbage device comprises rubbish feed bin 1-2, hopper and fire door 1-3, and hopper is located at the upper end of drying garbage cylinder 2 outer wall, and the opening for feed of hopper is rectangle, and fire door 1-3 is arranged at the junction of rubbish feed bin 1-2 and hopper.The both sides of described hopper are perpendicular to the axis of drying garbage cylinder 2, and certain angle is inwardly shunk in another both sides, and rubbish can be made to slide to screw feeder 2-1 by self gravitation.Described rubbish feed bin 1-2 is placed in the top of hopper, is round shape.During feed, rubbish is pushed in drying garbage cylinder 2 by the material feeder rubbish dropped in rubbish hopper, and is isolated by fire door 1-3 and rubbish feed bin 1-2.Fire door 1-3 keeps closing condition when material feeder is regained, and closes fire door 1-3 and drying garbage cylinder 2 and the external world can be made to separate.
Described pyrolytic gasification reaction chamber 3 comprises shell 3-3, thermal insulation layer 3-2 and inwall 3-1, and shell 3-3 is that carbon steel steel plate is made, and thermal insulation layer 3-2 is between shell 3-3 and inwall 3-1, and inwall 3-1 is refractory brick.
The side of described Semicircular arched structure offers heat smoke relief outlet perpendicular to end face, and inwall refractory brick and thermal insulation layer can to reduce the loss of heat.Top design overarches and can ensure that heat smoke is pooled to top and discharges from smoke discharge tube 3-4 smoothly.
Described ash melting room 4 comprises integrated poured high temperature resistant corundum lining 4-1, the refractory brick 4-2 of one-piece casting, thermal insulation layer 4-3, housing 4-4 from the inside to the outside successively, and described housing can adopt steel matter.The housing 4-4 top of ash melting room 4 and the bottom enclosure 3-3 of pyrolytic gasification reaction chamber 3 are welded to connect.
The bottom of described ash melting room 4 is cone structure, and collect rubbish slag to facilitate, the cone angle of cone structure is ε, ε is 130-150 °.
The bottom of the cone structure of described ash melting room 4 has a slag-drip opening 5, and slag-drip opening 5 is a long narrow laryngeal inlet, and laryngeal inlet is a tapered tube, and the cone angle of tapered tube is 6-10 °.Described slag-drip opening 5 comprises inner and outer wall, and inwall is fire-resistant corundum lining 5-1, and outer wall is refractory liner 5-2 and steel plate 5-3.
As shown in Figure 5, the mouth of pipe place, tapered tube upper end of described slag-drip opening 5 is provided with discharge opeing lid 5-4, the discharge opeing lid 5-4 beautiful integral manufacturing of resistant to elevated temperatures height; Described discharge opeing lid 5-4 is symmetrically arranged with the outage 5-5 that several apertures are 10-20mm.
Gasifying process process of the present utility model is:
1, the rubbish without sorting is encased in the feed bin of feeding garbage device, screw feeder 2-1 is fallen to through feed bin, by screw feeder 2-1, the rubbish dropping into hopper is slowly pushed in drying garbage cylinder 2, and is isolated by fire door 1-3 and drying garbage cylinder 2;
2, the rubbish after drying garbage cylinder 2 inner drying is pushed to garbage discharge outlet 2-2 by screw feeder 2-1, drops on the fire grate 3-5 of pyrolytic gasification reaction chamber 3, participates in pyrolysis, gasification, burning, and produces water vapor, is rich in H
2with the domestic refuse of the solid residue produced after the pyrolysis smoke of CO, pyrolytic gasification and non-complete reaction, water vapor is discharged out of the furnace by the water vapor vent pipe 2-6 of drying garbage cylinder 2 right-hand member;
3, the domestic refuse of solid residue and non-complete reaction is transported to ash melting room 4 through chain furnace grate; In ash melting room 4, under the high temperature heat source that the domestic refuse of solid residue and non-complete reaction provides at plasma torch, there is pyrolytic gasification reaction further; After pyrolytic gasification reaction, the high temperature that the remaining residue of after-flame provides through plasma torch carries out melting, and utilize high temperature organism unreacted in the slag in ash melting room 4 and objectionable impurities again to be gasified, and remove dioxin and furans in slag, the inorganics and the metal that finally become molten state discharge plasma gasification Reaktionsofen by slag-drip opening 5.
In said process, in drying garbage cylinder 2, the heat of the high-temperature flue gas that the heat of garbage drying comes from refuse pyrolysis in pyrolytic gasification reaction chamber 3 and ash melting room 4, gasification, burning produce.
In said process, the bottom outside of drying garbage cylinder 2 accepts the heat of the high-temperature flue gas of pyrolytic gasification reaction chamber 3, and the heat of high-temperature flue gas imports in drying garbage cylinder 2 for garbage drying through the barrel of drying garbage cylinder 2; The water vapor that drying garbage produces is discharged out of the furnace by the water vapor vent pipe 2-6 of drying garbage cylinder 2 right-hand member; The water vapor of discharging can be passed into pyrolytic gasification reaction chamber 3 or gasify for refuse pyrolysis as high-temperature steam in ash melting room 4.
In said process, in ash melting room 4, the air required for after-flame of the unreacted carbon residue of pyrolytic gasification is supplemented by gas inlet 4-6.
In said process, the synthetic gas that the synthetic gas produced at the second gasification in ash melting room 4 and after-flame and pyrolytic gasification reaction chamber 3 produce upwards is collected by top arcuate burner hearth after drying garbage cylinder 2 heat exchange is lowered the temperature, and enters into follow-up synthetic gas utilize system by smoke discharge tube 3-4 discharge.
Claims (8)
1. a sleeve-type plasma gasification Reaktionsofen, it is characterized in that: comprise feeding garbage device, drying garbage cylinder (2), pyrolytic gasification reaction chamber (3), ash melting room (4), drying garbage cylinder (2) is the resistant to elevated temperatures cylinder of cylindrical shape being horizontally placed on pyrolytic gasification reaction chamber (3) inner upper, the left end of drying garbage cylinder (2) is positioned at the outside of pyrolytic gasification reaction chamber body of heater (3-1), the left-hand end of drying garbage cylinder (2) is connected with the bottom of feeding garbage device, drying garbage cylinder (2) bottom right side opening is provided with garbage discharge outlet (2-2), described pyrolytic gasification reaction chamber (3) is divided into the Semicircular arched structure on top, the structure of installation drying garbage cylinder (2) at middle part and the pyrolysis and combustion room of bottom in the vertical, the bottom of pyrolysis and combustion room is provided with belt traveling-grate stoker (3-5), and the left bottom of pyrolytic gasification reaction chamber (3) is communicated with ash melting room (4), ash melting room (4) is cylindric, ash melting room (4) are evenly arranged the multiple plasma torch installing ports (4-5) being in same level, plasma torch installing port (4-5) is all provided with plasma torch, angle between the medullary ray of plasma torch installing port (4-5) and the vertical center line of ash melting room (4) is γ angle, γ angle is 50-70 °, the angle of the medullary ray of plasma torch installing port (4-5) and the horizontal center line of ash melting room (4) is δ angle, and δ angle is 30-50 °, ash melting room (4) is evenly arranged the multiple gas inlets (4-6) being in another same level, angle between the medullary ray of gas inlet (4-6) and the vertical center line of ash melting room (4) is ε angle, ε angle is 50-70 °, the medullary ray of gas inlet (4-6) and the horizontal centre line parallel of ash melting room (4), described gas inlet (4-6) is higher than plasma torch installing port (4-5).
2. a kind of sleeve-type plasma gasification Reaktionsofen according to claim 1, it is characterized in that: the upper end of the right-hand end of described drying garbage cylinder (2) is provided with water vapor vent pipe (2-6), and below drying garbage cylinder (2) axis, place offers screw feeder (2-1) axis hole.
3. a kind of sleeve-type plasma gasification Reaktionsofen according to claim 1, it is characterized in that: in described drying garbage cylinder (2), adopt screw feeder (2-1) conveying garbage, screw feeder (2-1) overall arranged off-centre is in drying garbage cylinder (2), the two ends of the central shaft (2-4) of screw feeder (2-1) adopt shaft seal and sliding surface bearing (2-3) to be fixed on two end faces of drying garbage cylinder (2), the spindle nose of right-hand member adds seal cap sealing, the spindle nose that left end is positioned at drying garbage cylinder (2) outside is connected with motor (2-5), the rotating speed of screw feeder (2-1) is controlled as required by frequency transformer.
4. a kind of sleeve-type plasma gasification Reaktionsofen according to claim 1, it is characterized in that: described feeding garbage device comprises rubbish feed bin (1-2), hopper (1-1) and fire door (1-3), hopper (1-1) is located at the upper end of drying garbage cylinder (2) outer wall, the opening for feed of hopper (1-1) is rectangle, and fire door (1-3) is arranged at the junction of rubbish feed bin (1-2) and hopper (1-1); The both sides of described hopper (1-1) are perpendicular to the axis of drying garbage cylinder (2), and certain angle is inwardly shunk in another both sides; Described rubbish feed bin (1-2) is placed in the top of hopper (1-1), is round shape.
5. a kind of sleeve-type plasma gasification Reaktionsofen according to claim 1, it is characterized in that: described pyrolytic gasification reaction chamber (3) comprises shell (3-3), thermal insulation layer and inwall, shell (3-3) is made for carbon steel steel plate, thermal insulation layer is positioned between shell (3-3) and inwall, and inwall is refractory brick; The side of described Semicircular arched structural top is provided with vertical heat smoke relief outlet.
6. a kind of sleeve-type plasma gasification Reaktionsofen according to claim 1, is characterized in that: described ash melting room (4) comprises integrated poured high temperature resistant corundum lining (4-1), the refractory brick (4-2) of one-piece casting, thermal insulation layer (4-3), housing (4-4) from the inside to the outside successively; Housing (4-4) top of ash melting room (4) is connected with bottom enclosure (3-3) case weld of pyrolytic gasification reaction chamber (3).
7. a kind of sleeve-type plasma gasification Reaktionsofen according to claim 1, is characterized in that: the bottom of described ash melting room (4) is cone structure, and the cone angle of cone structure is ε, ε is 130-150 °; The bottom of cone structure is provided with slag-drip opening (5), and slag-drip opening (5) is a tapered tube, and the cone angle of tapered tube is 6-10 °; Described slag-drip opening (5) comprises inner and outer wall, and inwall is fire-resistant corundum lining (5-1), and outer wall is refractory liner (5-2) and steel plate (5-3).
8. a kind of sleeve-type plasma gasification Reaktionsofen according to claim 7, is characterized in that: mouth of pipe place, described tapered tube upper end is provided with discharge opeing lid (5-4), discharge opeing lid (5-4) the beautiful integral manufacturing of resistant to elevated temperatures height; Described discharge opeing lid (5-4) is symmetrically arranged with the outage (5-5) that several apertures are 10-20mm.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105018148A (en) * | 2015-08-05 | 2015-11-04 | 中国东方电气集团有限公司 | Sleeve type plasma gasification reacting furnace and process thereof |
| CN109401786A (en) * | 2018-11-08 | 2019-03-01 | 山西普皓环保科技有限公司 | A kind of plasma device handling clinical waste |
| CN114082752A (en) * | 2021-11-16 | 2022-02-25 | 天津大学 | A kind of solid waste treatment method |
-
2015
- 2015-08-05 CN CN201520578866.0U patent/CN204848776U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105018148A (en) * | 2015-08-05 | 2015-11-04 | 中国东方电气集团有限公司 | Sleeve type plasma gasification reacting furnace and process thereof |
| CN109401786A (en) * | 2018-11-08 | 2019-03-01 | 山西普皓环保科技有限公司 | A kind of plasma device handling clinical waste |
| CN114082752A (en) * | 2021-11-16 | 2022-02-25 | 天津大学 | A kind of solid waste treatment method |
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Effective date of registration: 20180425 Address after: 610000 18 West core road, hi-tech West District, Chengdu, Sichuan Patentee after: Dongfang Electric Co., Ltd. Address before: 610036 Shu Han Road, Jinniu District, Chengdu, Sichuan Province, No. 333 Patentee before: Dongfang Electric Corporation |