CN110056882A - A kind of fuse salt refuse disposal system and method based on heat storage type combustion - Google Patents
A kind of fuse salt refuse disposal system and method based on heat storage type combustion Download PDFInfo
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- CN110056882A CN110056882A CN201910317435.1A CN201910317435A CN110056882A CN 110056882 A CN110056882 A CN 110056882A CN 201910317435 A CN201910317435 A CN 201910317435A CN 110056882 A CN110056882 A CN 110056882A
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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
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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
- F23G5/08—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
- F23G5/16—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating including secondary combustion in a separate combustion chamber
- F23G5/165—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating including secondary combustion in a separate combustion chamber arranged at a different level
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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
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/44—Details; Accessories
- F23G5/46—Recuperation of 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
- F23G2201/302—Treating pyrosolids
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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
- F23G2201/303—Burning pyrogases
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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
- F23G2202/103—Combustion in two or more stages in separate chambers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2206/00—Waste heat recuperation
- F23G2206/10—Waste heat recuperation reintroducing the heat in the same process, e.g. for predrying
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2900/00—Special features of, or arrangements for incinerators
- F23G2900/50001—Combination of two or more furnaces
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2900/00—Special features of, or arrangements for incinerators
- F23G2900/50204—Waste pre-treatment by pyrolysis, gasification or cracking
Abstract
The present invention relates to a kind of fuse salt refuse disposal system and method based on heat storage type combustion, the system includes fuse salt furnace apparatus (1), garbage feeding circulator (2), ash collection device (3), flue gas processing device (4), flue gas conveys reflux unit (5) and heat accumulating burner (6), the present invention improves energy utilization rate using heat storage type combustion, especially to the reasonable utilization of low calorie fuels, both the discharge of pollutant had been reduced, the energy has been saved again, using fuse salt as the low temperature pyrogenation of pyrolysis media implementation organic matter or gasification, energy consumption of reaction can not only be reduced, the cost and loss of equipment can also be reduced, the pollution to environment is reduced simultaneously, debirs melting carbonization is realized using dual channel structure smelting furnace absolutely to separate with what pyrolysis gas burnt, can inhibit NOx generation but also After-flame dioxin, it is environmentally protective, be conducive to environmental protection, garbage treatment efficiency is high.
Description
Technical field
The present invention relates to technical field of waste treatment, and in particular to a kind of fuse salt garbage disposal based on heat storage type combustion
System and method.
Background technique
The traditional trash processing way in China mostly landfill, burning and three kinds of compost, the common-denominator target of these processing modes
It is by garbage decrement, recycling and harmless treatment.Garbage loading embeading is easy to operate, can be filled out by establishing high-caliber health
It buries factory and solves rubbish diffusate polluted underground water and soil, dumping generation foul smell and inflammable and explosive greenhouse gas methane etc. two
Secondary environment pollution problem, but the technology takes up a large area, and construction investment is big, and operating cost is high, it is crucial that landfill factory and office reason
Ability is limited, and the new landfill yard of investment construction, further land occupation resource are still needed to after taking up one's indentures；Incineration treatment of garbage is subtracting
Appearance, decrement and innoxious degree are with the obvious advantage, and the heat that burning process generates is used to generate electricity that the energy of rubbish may be implemented,
But improper to the control of burning condition can have smoke pollution (especially dioxin), lead to environmental problem, and equipment investment is huge；
Garbage compost technical matters is simple, is suitable for the higher garbage disposal of the perishable content of organic matter, can be to the constituent part in rubbish
The utilization of resources is carried out, and the simple burning disposal of rubbish output investment ratio for handling phase homogenous quantities substantially reduces, but composting technology cannot
Not putrescible organic matter and inorganic matter are handled, causes volume reduction, decrement and innoxious degree low.
Refuse pyrolysis technology is to be different from one of the technology of above-mentioned traditional trash processing way, it is will be organic in rubbish
Solid waste carries out anoxybiotic pyrolysis processing, not only has splendid spatter property, but also can get the clean gas of high value,
It is generated in treatment process without dioxin and sour gas simultaneously, is not only suitable for the centralized processing of the house refuse of large size city, again
It is adapted to the small-scale flexible processing of the house refuse of small and medium cities, small towns.It is also achieved on garbage disposal common-denominator target
Domestic Waste Minimization, recycling and harmless treatment.But refuse pyrolysis technical process also led to the problem of it is as follows: first is that
Control of dioxins is relatively difficult to achieve in the low flammable matter rubbish charcoal processing of high ash content and treatment process；Second is that in the dust-laden of high-moisture percentage
Warm solution coal gas, which is unable to get, to be effectively treated；Third is that being only applicable to the higher garbage disposal of refuse thermal value.
Summary of the invention
It is an object of the invention to solve the shortcomings of the prior art, a kind of fuse salt based on heat storage type combustion is provided
Refuse disposal system and method improve energy utilization rate using heat storage type combustion, especially to the reasonable benefit of low calorie fuels
With not only having reduced the discharge of pollutant, but also saved the energy, using fuse salt as the pyrolysis media implementation low temperature of organic matter
Pyrolysis or gasification, can not only reduce energy consumption of reaction, can also reduce the cost and loss of equipment, while reducing the dirt to environment
Dye realizes debirs melting carbonization using dual channel structure smelting furnace and absolutely separates with what pyrolysis gas burnt, can inhibit NOx
Generation again can after-flame dioxin, it is environmentally protective, be conducive to environmental protection, garbage treatment efficiency is high.
The technical solution adopted by the present invention is that: a kind of fuse salt refuse disposal system based on heat storage type combustion, including it is molten
Melt salt furnace apparatus 1, garbage feeding circulator 2, ash collection device 3, flue gas processing device 4, flue gas conveying 5 and of reflux unit
Heat accumulating burner 6, fuse salt furnace apparatus 1 include melting carbide furnace 11 and pyrolysis combustion furnace 12, melt carbide furnace 11 and heat
The setting of 12 parallel side-by-side of combustion furnace is solved, front and back end interconnects, and the outside for melting carbide furnace 11 and pyrolysis combustion furnace 12 is equipped with
Thermal insulation separation hot wall, inside are equipped with fused salt mixture, and the in-furnace temperature for melting carbide furnace 11 is 800 DEG C~950 DEG C, pyrolysis and combustion
The in-furnace temperature of furnace 12 is 1200 DEG C~1400 DEG C, and garbage feeding circulator 2 includes that screw(-type) feeder 21 and circulation promote rotation
The front end for melting carbide furnace 11 is arranged in shaft 22, screw(-type) feeder 21, and 21 pairs of melting carbide furnaces 11 of screw(-type) feeder carry out rubbish
Rubbish feeding, circulation promote rotary shaft 22 to be arranged in the furnace for melting carbide furnace 11, and circulation promotes and is provided with stirring in rotary shaft 22
Bar 23, axial thrust blade 24 and radial thrust blade 25, circulation promote rotary shaft 22 to carry out rubbish and fused salt mixture
It is stirred, pushes rubbish and fused salt mixture to 12 internal circulation flow of pyrolysis combustion furnace, the setting of ash collection device 3 is molten
The rear end for solving carbide furnace 11, consolidates lime-ash to the carbon generated in fuse salt furnace apparatus 1 and is collected, and flue gas processing device 4 includes rotation
Wind deduster 41 and plasma smoke purifying device 42, cyclone dust collectors 41 carry out gas solid separation processing, plasma oil smoke to flue gas
Clarifier 42 carries out oil smoke separating treatment to flue gas, and the air inlet of flue gas processing device 4 is connected with carbide furnace 11 is melted, flue gas
Conveying reflux unit 5 includes centrifugal blower 51 and fireproof tempering device 52, and centrifugal blower 51 carries out discharge reflux conveying to flue gas, prevents
Back-fire arrangement 52 controls flue gas one way flow, completely cuts off flame propagation, and flue gas conveys the air inlet and fume treatment of reflux unit 5
The gas outlet of device 4 is connected, and the gas outlet of flue gas conveying reflux unit 5 is connected with the front and back end of pyrolysis combustion furnace 12 respectively
Logical, heat accumulating burner 6 includes two accumulation of heat chamber devices 61, change valve device 62, blower device 63 and fume extractor 64, and two
A accumulation of heat chamber device 61 is connected with the front and back end of pyrolysis combustion furnace 12 respectively, and heat accumulating burner 6 controls pyrolysis combustion furnace
12 carry out the burning of heat accumulating type hypoxic air.
It is further improved, the fused salt mixture, the component including following parts by weight: 3~5 parts of sodium chloride, chlorine
Change 5~7 parts of calcium.
A kind of fuse salt waste disposal method based on heat storage type combustion, includes the following steps:
Step 1: rubbish feed, garbage feeding circulator 2 by rubbish at regular time and quantity, feed to continuous uniform melting carbon
In the furnace for changing furnace 11, and rubbish is stirred with the fused salt mixture melted in carbide furnace 11 and is mixed,
Step 2: melting carbonization, rubbish sufficiently melts carbon under the fused salt mixture effect in carbide furnace 11 that melts
Change, generate flue gas and carbide,
Step 3: fume treatment and reflux, flue gas successively passes through cyclone dust collectors under the pressure-vaccum effect of centrifugal blower 51
41, plasma smoke purifying device 42, centrifugal blower 51 and fireproof tempering device 52, flow back into pyrolysis combustion furnace 12,
Step 4: carbide recycles, carbide is under the promotion of garbage feeding circulator 2, with fused salt mixture
Flowing, is recycled into pyrolysis combustion furnace 12,
Step 5: heat storage type combustion, heat accumulating burner 6 in pyrolysis combustion furnace 12 backflow flue gas and carbide into
The burning of row heat accumulating type hypoxic air, inhibits the generation of NOx, and the toxic gases such as after-flame dioxin generate carbon and consolidate lime-ash and row property
Gas,
Step 6: ash collection and gas are discharged, ash collection device 3 collects carbon and consolidates lime-ash, and row property gas flows through storage
After hot cell device 61 cools down, it is discharged by change valve device 62 by fume extractor 64.
Compared with the prior art, the invention has the following beneficial effects: energy utilization rate is improved using heat storage type combustion,
Especially to the reasonable utilization of low calorie fuels, not only reduced the discharge of pollutant, but also saved the energy, using fuse salt as
Be pyrolyzed low temperature pyrogenation or the gasification of media implementation organic matter, can not only reduce energy consumption of reaction, can also reduce equipment at
Originally it and is lost, while reducing the pollution to environment, debirs are realized using dual channel structure smelting furnace and melts carbonization and is pyrolyzed
The absolute separation of gas burning, can inhibit generation but also the after-flame dioxin of NOx, environmentally protective, be conducive to environmental protection, rubbish
Treatment effeciency is high.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Specific embodiment
The preferred embodiment of the present invention is described in detail with reference to the accompanying drawing, so that advantages and features of the invention energy
It is easier to be readily appreciated by one skilled in the art, so as to make a clearer definition of the protection scope of the present invention.
As shown in Figure 1, a kind of fuse salt refuse disposal system based on heat storage type combustion, including fuse salt furnace apparatus 1, rubbish
Rubbish feed cycle device 2, ash collection device 3, flue gas processing device 4, flue gas conveying reflux unit 5 and heat accumulating burner
6, fuse salt furnace apparatus 1 includes melting carbide furnace 11 and pyrolysis combustion furnace 12, and it is parallel with pyrolysis combustion furnace 12 to melt carbide furnace 11
It is set side by side, front and back end interconnects, and the outside for melting carbide furnace 11 and pyrolysis combustion furnace 12 is equipped with thermal insulation separation hot wall, internal
Equipped with fused salt mixture, the in-furnace temperature for melting carbide furnace 11 is 800 DEG C~950 DEG C, the in-furnace temperature of pyrolysis combustion furnace 12
It is 1200 DEG C~1400 DEG C, garbage feeding circulator 2 includes that screw(-type) feeder 21 and circulation promote rotary shaft 22, screw feeder
The front end for melting carbide furnace 11 is arranged in machine 21, and 21 pairs of melting carbide furnaces 11 of screw(-type) feeder carry out rubbish feeding, and circulation promotes
Rotary shaft 22 is arranged in the furnace for melting carbide furnace 11, and circulation promotes and is provided with stirring rod 23, axial thrust leaf in rotary shaft 22
Piece 24 and radial thrust blade 25, circulation promote rotary shaft 22 to be stirred rubbish with fused salt mixture and mix, and push rubbish
Rubbish and fused salt mixture are to 12 internal circulation flow of pyrolysis combustion furnace, after melting carbide furnace 11 is arranged in ash collection device 3
End, consolidates lime-ash to the carbon generated in fuse salt furnace apparatus 1 and is collected, and flue gas processing device 4 includes cyclone dust collectors 41 and waits
Ion fume clarifier 42, cyclone dust collectors 41 carry out gas solid separation processing to flue gas, and plasma smoke purifying device 42 is to flue gas
Oil smoke separating treatment is carried out, the air inlet of flue gas processing device 4 is connected with carbide furnace 11 is melted, and flue gas conveys reflux unit 5
Including centrifugal blower 51 and fireproof tempering device 52, centrifugal blower 51 carries out discharge reflux conveying to flue gas, and fireproof tempering device 52 is controlled
Tobacco curing gas one way flow, completely cuts off flame propagation, and flue gas conveys the air inlet of reflux unit 5 and the outlet of flue gas processing device 4
Mouth is connected, and the gas outlet of flue gas conveying reflux unit 5 is connected with the front and back end of pyrolysis combustion furnace 12 respectively, heat storage type combustion
Device 6 includes two accumulation of heat chamber devices 61, change valve device 62, blower device 63 and fume extractor 64, two accumulation of heat chamber devices
61 are connected with the front and back end of pyrolysis combustion furnace 12 respectively, and heat accumulating burner 6 controls pyrolysis combustion furnace 12 and carries out heat accumulating type
Hypoxic air burning.
It is further improved, the fused salt mixture, the component including following parts by weight: 3~5 parts of sodium chloride, chlorine
Change 5~7 parts of calcium.Preferably, 4 parts of sodium chloride, 6 parts of calcium chloride, the fusing point of sodium chloride is 801 DEG C, and boiling point is 1465 DEG C, using chlorine
Change calcium as fluxing agent, when sodium chloride is mixed with calcium chloride with 4: 6 parts by weight, the fusing point of fused salt mixture drops to 580
DEG C, it can will thus melt the fused salt mixture temperature in 11 furnace of carbide furnace and control at 900 DEG C or less.
Regenerative combustion technology is a kind of technology burnt under high-temperature low-oxygen air regime, and regenerative combustion technology is from root
The energy utilization rate of combustion furnace is improved in sheet had both reduced the row of pollutant especially to the reasonable utilization of low calorie fuels
It puts, and has saved the energy, in addition, regenerative combustion technology is commutated alternation repeatedly by reversal valve, add heated medium
Heat enhances the furnace atmosphere circulation in combustion furnace to higher temperature into combustion furnace, and the temperature field of uniform stove improves heating
Burning quality, garbage disposal effect highly significant.
Fuse salt has good heat storage capacity, and mass-and heat-transfer coefficient is high, being capable of rapidly and efficiently decomposing organic matter, moreover it is possible to inhale
It receives and the harmful substance of conversion pyrolytic process generation obtains rubbish in fuse salt body sufficiently using melting salt treatment rubbish
It decomposes, organic matter complete decomposition, and product is free of pernicious gas, pyrolysis gas can be used as the energy and synthesis gas utilizes, fuse salt
Low temperature pyrogenation or the gasification that organic matter can be achieved, can not only reduce energy consumption of reaction, can also reduce the cost and loss of equipment,
The pollution to environment is reduced simultaneously.
Fuse salt furnace apparatus 1 includes melting carbide furnace 11 and pyrolysis combustion furnace 12, melts carbide furnace 11 and pyrolysis combustion furnace
The setting of 12 parallel side-by-sides, front and back end interconnect, and the inside for melting carbide furnace 11 and pyrolysis combustion furnace 12 is mixed equipped with fuse salt
Object is closed, two accumulation of heat chamber devices 61 are connected with the front and back end of pyrolysis combustion furnace 12 respectively, the control pyrolysis of heat accumulating burner 6
Combustion furnace 12 carries out the burning of heat accumulating type hypoxic air, this melting for melting carbide furnace 11 and 12 dual channel structure of pyrolysis combustion furnace
Salt furnace realizes garbage organism dissolution carbonization and absolutely separates with what pyrolysis gas burnt, while accumulation of heat is used in pyrolysis combustion furnace 12
The burning of formula hypoxic air, ignition temperature is 1200 DEG C average, is much larger than 850 DEG C, can inhibit generation but also the after-flame dioxin of NOx
Equal toxic gases.
A kind of fuse salt waste disposal method based on heat storage type combustion, includes the following steps:
Step 1: rubbish feed, garbage feeding circulator 2 by rubbish at regular time and quantity, feed to continuous uniform melting carbon
In the furnace for changing furnace 11, and rubbish is stirred with the fused salt mixture melted in carbide furnace 11 and is mixed,
Step 2: melting carbonization, rubbish sufficiently melts carbon under the fused salt mixture effect in carbide furnace 11 that melts
Change, generate flue gas and carbide,
Step 3: fume treatment and reflux, flue gas successively passes through cyclone dust collectors under the pressure-vaccum effect of centrifugal blower 51
41, plasma smoke purifying device 42, centrifugal blower 51 and fireproof tempering device 52, flow back into pyrolysis combustion furnace 12,
Step 4: carbide recycles, carbide is under the promotion of garbage feeding circulator 2, with fused salt mixture
Flowing, is recycled into pyrolysis combustion furnace 12,
Step 5: heat storage type combustion, heat accumulating burner 6 in pyrolysis combustion furnace 12 backflow flue gas and carbide into
The burning of row heat accumulating type hypoxic air, inhibits the generation of NOx, and the toxic gases such as after-flame dioxin generate carbon and consolidate lime-ash and row property
Gas,
Step 6: ash collection and gas are discharged, ash collection device 3 collects carbon and consolidates lime-ash, and row property gas flows through storage
After hot cell device 61 cools down, it is discharged by change valve device 62 by fume extractor 64.
Solid arrow show the flow direction of rubbish and fused salt mixture in Fig. 1, and dotted arrow show flue gas
Flow direction.
Not limited to this, any change or replacement expected without creative work should all be covered in guarantor of the invention
Within the scope of shield.Therefore, protection scope of the present invention should be determined by the scope of protection defined in the claims.
Claims (3)
1. a kind of fuse salt refuse disposal system based on heat storage type combustion, which is characterized in that including fuse salt furnace apparatus (1),
Garbage feeding circulator (2), ash collection device (3), flue gas processing device (4), flue gas conveying reflux unit (5) and accumulation of heat
Formula burner (6), fuse salt furnace apparatus (1) include melting carbide furnace (11) and pyrolysis combustion furnace (12), melt carbide furnace
(11) it is interconnected with the setting of pyrolysis combustion furnace (12) parallel side-by-side, front and back end, melts carbide furnace (11) and pyrolysis combustion furnace
(12) outside is equipped with thermal insulation separation hot wall, and inside is equipped with fused salt mixture, and the in-furnace temperature for melting carbide furnace (11) is 800 DEG C
~950 DEG C, the in-furnace temperature of pyrolysis combustion furnace (12) is 1200 DEG C~1400 DEG C, and garbage feeding circulator (2) includes spiral
Batcher (21) and circulation promote rotary shaft (22), and screw(-type) feeder (21) setting is in the front end for melting carbide furnace (11), spiral
Batcher (21) carries out rubbish feeding to carbide furnace (11) are melted, and circulation promotes rotary shaft (22) setting melting carbide furnace (11)
Furnace in, circulation promote rotary shaft (22) on be provided with stirring rod (23), axial thrust blade (24) and radial thrust blade
(25), circulation promotes rotary shaft (22) to be stirred rubbish with fused salt mixture and mixes, and rubbish is pushed to mix with fuse salt
Object is to pyrolysis combustion furnace (12) internal circulation flow, and ash collection device (3) setting is in the rear end for melting carbide furnace (11), to melting
The carbon generated in salt furnace apparatus (1) is consolidated lime-ash and is collected, and flue gas processing device (4) includes cyclone dust collectors (41) and plasma
Oil fume purifier (42), cyclone dust collectors (41) carry out gas solid separation processing to flue gas, and plasma smoke purifying device (42) is to cigarette
Gas carries out oil smoke separating treatment, and the air inlet of flue gas processing device (4) is connected with carbide furnace (11) are melted, flue gas conveying reflux
Device (5) includes centrifugal blower (51) and fireproof tempering device (52), and centrifugal blower (51) carries out discharge reflux conveying to flue gas, prevents
Back-fire arrangement (52) controls flue gas one way flow, completely cuts off flame propagation, and flue gas conveys the air inlet and flue gas of reflux unit (5)
The gas outlet of processing unit (4) is connected, and flue gas conveys the gas outlet of reflux unit (5) respectively and before pyrolysis combustion furnace (12)
Rear end is connected, and heat accumulating burner (6) includes two accumulation of heat chamber devices (61), change valve device (62), blower device
(63) it is connected respectively with the front and back end of pyrolysis combustion furnace (12) with fume extractor (64), two accumulation of heat chamber devices (61), accumulation of heat
Formula burner (6) controls pyrolysis combustion furnace (12) and carries out the burning of heat accumulating type hypoxic air.
2. a kind of fuse salt refuse disposal system based on heat storage type combustion according to claim 1, which is characterized in that institute
The fused salt mixture stated, the component including following parts by weight: 3~5 parts of sodium chloride, 5~7 parts of calcium chloride.
3. a kind of fuse salt waste disposal method based on heat storage type combustion, which comprises the steps of:
Step 1: rubbish is fed, rubbish at regular time and quantity, continuous uniform is fed melting carbonization by garbage feeding circulator (2)
In the furnace of furnace (11), and rubbish is stirred with the fused salt mixture melted in carbide furnace (11) and is mixed,
Step 2: melting carbonization, rubbish sufficiently melts carbonization under the fused salt mixture effect in carbide furnace (11) that melts,
Flue gas and carbide are generated,
Step 3: fume treatment and reflux, flue gas successively passes through cyclone dust collectors under the pressure-vaccum effect of centrifugal blower (51)
(41), plasma smoke purifying device (42), centrifugal blower (51) and fireproof tempering device (52), flow back into pyrolysis combustion furnace (12)
It is interior,
Step 4: carbide recycles, carbide is under the promotion of garbage feeding circulator (2), with the stream of fused salt mixture
It is dynamic, it is recycled into pyrolysis combustion furnace (12),
Step 5: heat storage type combustion, heat accumulating burner (6) in pyrolysis combustion furnace (12) backflow flue gas and carbide into
The burning of row heat accumulating type hypoxic air, inhibits the generation of NOx, and the toxic gases such as after-flame dioxin generate carbon and consolidate lime-ash and row property
Gas,
Step 6: ash collection and gas are discharged, ash collection device (3) collects carbon and consolidates lime-ash, and row property gas flows through accumulation of heat
After chamber device (61) cooling, it is discharged by change valve device (62) by fume extractor (64).
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Cited By (4)
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| CN110776958A (en) * | 2019-11-20 | 2020-02-11 | 刘民凯 | Low-rank coal partition pyrolysis gasification multi-combined supply system and method based on molten bath bed |
| CN111715181A (en) * | 2020-05-06 | 2020-09-29 | 安徽紫荆花壁纸股份有限公司 | Production system and method of environment-friendly wall decoration material |
| CN112063398A (en) * | 2020-09-29 | 2020-12-11 | 河南省正源环境科技有限公司 | Continuous pyrolysis device |
| CN113560317A (en) * | 2021-07-16 | 2021-10-29 | 上海羿诚环保科技有限公司 | Waste salt treatment method |
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