CN106152148A - A kind of burning smelting process system of dangerous waste disposal - Google Patents
A kind of burning smelting process system of dangerous waste disposal Download PDFInfo
- Publication number
- CN106152148A CN106152148A CN201610849205.6A CN201610849205A CN106152148A CN 106152148 A CN106152148 A CN 106152148A CN 201610849205 A CN201610849205 A CN 201610849205A CN 106152148 A CN106152148 A CN 106152148A
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- China
- Prior art keywords
- waste
- flue gas
- high temperature
- kiln
- cinder notch
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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
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
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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
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
- F23G7/04—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste liquors, e.g. sulfite liquors
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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
- F23G2201/70—Blending
- F23G2201/702—Blending with other waste
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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
- F23G2202/00—Combustion
- F23G2202/20—Combustion to temperatures melting waste
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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
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
- Y02P80/15—On-site combined power, heat or cool generation or distribution, e.g. combined heat and power [CHP] supply
Abstract
The invention discloses the burning smelting process system of a kind of dangerous waste disposal, including dangerous waste incineration wire system and high-temperature fusion furnace system；Dangerous waste incineration wire system includes incinerating kiln, dual firing chamber, waste-heat recovery device, deacidification reactor and the cleaner unit being sequentially communicated；The kiln hood of incinerating kiln is provided with drawing-in device and the first spray gun, and kiln tail is provided with first row cinder notch；The bottom of waste-heat recovery device is provided with second row cinder notch；High-temperature fusion furnace system includes that additive mixes device, high temperature smelting furnace and chilling dreg removing system, and additive mixes device and connects with high temperature smelting furnace；First row cinder notch and second row cinder notch are all communicated in high temperature smelting furnace.The burning smelting process system of the dangerous waste disposal of the present invention, can realize the innoxious of hazardous waste and recycling, decrease energy resource consumption simultaneously, reduce cost.
Description
Technical field
The invention belongs to the hazardous waste processing technology field in field of environment protection；Particularly relate at a kind of hazardous waste
The burning smelting process system put.
Background technology
In existing, fairly large dangerous waste incineration line, owing to the incineration temperature of incinerator is relatively low, often only have
800-1000 DEG C, from incinerator lime-ash out can not curing heavy metal effectively, still there is Leaching.According to " dangerous
Refuse judging standard general rule ", there is the product after the hazardous waste process of Leaching and still fall within hazardous waste, it is therefore desirable to be right
These lime-ash carry out innoxious advanced treating.In addition to incinerator, the position producing lime-ash also has: waste heat boiler, half dry type/dry type
Reactor, sack cleaner etc..The most conventional disposal options is to use the technical method such as cement solidification, chemical method stabilisation
Process, then carry out security landfill.But cement solidification and chemical stabilization all it is difficult to ensure that in flying dust heavy metal ion leaching
The long-time stability gone out, can not decompose and effectively eliminate two English, still cause potential to health and ecosystem
Great threat.The most this disposal options has obviously limitation: first, needs to add substantial amounts of water in solidification process
Mud (or Calx) and chelating agen, add operation costs；Secondly, substantial amounts of use cement and Calx increase the volume of firming body
And weight, add cost of transportation.
At present, indivedual dangerous waste disposal enterprises use high temperature smelting furnace that hazardous waste or lime-ash burn melted place
Reason, burn melted after hazardous waste lime-ash can curing heavy metal and other harmful substance effectively.Having in slag leachate
Evil component content, less than leaching characteristic identification value, does not have Leaching, can make construction material and use.But this mode cannot
Realize disposing hazardous waste on a large scale, and when disposing lime-ash, lime-ash need to be heated to from the state of room temperature 1300 DEG C with
On, need to expend substantial amounts of heat energy.
Summary of the invention
In order to overcome the deficiencies in the prior art, the burning that it is an object of the invention to provide a kind of dangerous waste disposal melts
Process system, it can realize the innoxious of hazardous waste and recycling, efficiently solve the after-treatment problem of lime-ash,
Decrease the energy resource consumption during dangerous waste disposal simultaneously, reduce cost.
It is a further object of the present invention to provide a kind of technique burning smelting process system using dangerous waste disposal.
The purpose of the present invention realizes by the following technical solutions:
The burning smelting process system of a kind of dangerous waste disposal, including dangerous waste incineration wire system and high temperature smelting furnace
System；
Incinerating kiln that described dangerous waste incineration wire system includes being sequentially communicated, dual firing chamber, waste-heat recovery device, deacidification are anti-
Answer device and cleaner unit；
The kiln hood of described incinerating kiln is provided with drawing-in device and the first spray gun, and described drawing-in device is for adding in incinerating kiln
Solid waste, described first spray gun is for adding waste liquid in incinerating kiln；The kiln tail of described incinerating kiln is provided with first row cinder notch；Institute
The bottom stating waste-heat recovery device is provided with second row cinder notch；
Described high-temperature fusion furnace system includes that additive mixes device, high temperature smelting furnace and chilling dreg removing system, described height
The body of heater of temperature melting furnace is provided with heater, and described additive mixes device and connects with high temperature smelting furnace, described chilling deslagging system
The melt that system is discharged for cooling down high-temperature melting furnace；
Described first row cinder notch and second row cinder notch are all communicated in high temperature smelting furnace.
Preferably, described dual firing chamber is provided with the second spray gun, and described second spray gun gives up for adding high heating value in dual firing chamber
Liquid.
Preferably, described incinerating kiln is horizontal setting, and dual firing chamber is vertical setting, and described first row cinder notch is arranged at burning
Kiln and the junction of dual firing chamber.
Preferably, described heater is for adding thermode and/or burner.Heater can provide heat for high temperature smelting furnace,
Ensure the operation temperature of high temperature smelting furnace, it is ensured that in stove, material is in molten condition.
Preferably, described chilling dreg removing system includes chilling tank, chilled water (chw) adding set and dragveyer, described chilled water (chw)
Groove is for accepting the melt that high temperature smelting furnace is discharged, and described chilled water (chw) adding set, for adding chilled water (chw) to chilling tank, produces
Raw Water Quenching Slag is pulled out by dragveyer.
Preferably, described high temperature smelting furnace is additionally provided with the drop guide for deriving melt.
Preferably, described deacidification reactor also includes that dry type deacidification reactor, described dry type deacidification reactor are arranged at half
Between dry type deacidification reactor and cleaner unit, and described dry type deacidification reactor connects with half dry type deacidification reactor and cleaner unit
Logical.
Preferably, described deacidification reactor bottom is provided with the 3rd slag-drip opening, and described cleaner unit is provided with the 4th slag-drip opening.
Preferably, it is provided with a passage between described first row cinder notch and chilling dreg removing system.
Present invention also offers a kind of technique burning smelting process system using dangerous waste disposal, including following step
Rapid:
1) solid waste enters dangerous waste incineration kiln after drawing-in device mixes, and waste liquid sprays into dangerous useless through the first spray gun
Thing incinerating kiln, burns in incinerating kiln and reacts, and obtains the first waste residue and the first flue gas, and the first waste residue is entered by first row cinder notch
Enter high temperature smelting furnace；
2) the first flue gas enters dual firing chamber, and harmful substance therein is destroyed by fire in dual firing chamber, obtains the second flue gas；
3) water during the second flue gas enters waste-heat recovery device, with waste-heat recovery device carries out heat exchange so that the second cigarette
Gas cooling obtains the 3rd flue gas；Lime-ash remaining in second flue gas is deposited in waste-heat recovery device, forms the second waste residue, through the
Two slag-drip openings enter in high temperature smelting furnace；
4) the 3rd flue gas enters into deacidification reactor, with the alkaline reaction of alkali liquor spray thrower ejection, removes in the 3rd flue gas
Acidic materials, obtain the 4th flue gas；Product and residue alkali liquor deposit to reactor bottom, obtain the 3rd waste residue, collect
After be transported to drawing-in device；
5) the 4th flue gas enters cleaner unit, enters air after removing dust device dedusting；The dust collected obtains the 4th and gives up
Slag, Transshipment Permitted to drawing-in device or security landfill after harmlessness disposing；
6) additive mixes device through additive and enters high temperature smelting furnace, at high temperature together with the first waste residue and the second waste residue
Mixed melting in melting furnace, forms vitreous melt, is then discharged out high temperature smelting furnace and enters chilling dreg removing system, forms fine and close glass
Glass body.
Preferably, in step 3) in, forming steam after water and the second flue gas heat exchange, described steam can be used for heating
High heating value waste liquid, preheated air and generating.
Compared to existing technology, the beneficial effects of the present invention is:
The burning smelting process system of the dangerous waste disposal of the present invention, is respectively provided with dangerous waste incineration in systems
Wire system and high-temperature fusion furnace system so that the waste residue that incinerating kiln, waste-heat recovery device produce enters directly into high temperature smelting furnace,
Mix in high temperature smelting furnace together with additive, melt, form vitreous melt, after water quench cooling, form nontoxic melting
Slag, can make general construction material and use, it is achieved that the innoxious and recycling of hazardous waste.
The burning smelting process system of the dangerous waste disposal of the present invention, the after-treatment efficiently solving lime-ash is asked
Topic, it is not required that be heated to molten state from room temperature again after lime-ash cooling, save the energy.
The burning smelting process system of the dangerous waste disposal of the present invention, the waste residue of high temperature is directly entered high temperature smelting furnace,
And the addition of additive makes waste residue be more likely formed glass melt, it is greatly saved melting furnace energy expenditure, also with high heat
The waste liquid of value, as dual firing chamber's auxiliary fuel, is greatly saved the energy, and the cost processing hazardous waste is lower.
Accompanying drawing explanation
Fig. 1 is the schematic diagram burning smelting process system of dangerous waste disposal of the present invention；
In figure: 11, the first feed end；12, additive mixes device；13, high temperature smelting furnace；131, heater；132, lead
Glassware；14, chilling dreg removing system；15, the first outfan；211, the second feed end；212, the 3rd feed end；213, the 4th charging
End；221, drawing-in device；222, the first spray gun；23, incinerating kiln；231, first row cinder notch；24, dual firing chamber；241, the 5th charging
End；242, the second spray gun；25, waste-heat recovery device；251, second row cinder notch；26, half dry type deacidification reactor；261, alkali liquor spray
Drench device；262, the 3rd slag-drip opening；27, dry type deacidification reactor；28, cleaner unit；281, the 4th slag-drip opening；282, blower fan；283、
Chimney；291, the second outfan；292, the 3rd outfan.
Detailed description of the invention
Below, in conjunction with accompanying drawing and detailed description of the invention, the present invention is described further:
Embodiment 1
As it is shown in figure 1, the burning smelting process system of a kind of dangerous waste disposal, including dangerous waste incineration wire system and
High-temperature fusion furnace system；
Incinerating kiln 23 that dangerous waste incineration wire system includes being sequentially communicated, dual firing chamber 24, waste-heat recovery device 25, half-dried
Formula deacidification reactor 26 and cleaner unit 28；
The kiln hood of incinerating kiln 23 is provided with drawing-in device 221 and the first spray gun 222, and drawing-in device 221 is provided with the second of correspondence
Feed end 211 and the 3rd feed end 212, be respectively used to add solid waste and half dry type deacidification reactor 26 produce with cleaner unit 28
Raw lime-ash；First spray gun 222 connects with the 4th feed end 213, and the 4th feed end 213 is used for adding waste liquid.Incinerating kiln 23
Kiln tail is provided with first row cinder notch 231, and first row cinder notch 231 connects with high temperature smelting furnace 13.Preferably, incinerating kiln 23 sets for horizontal
Putting, dual firing chamber 24 is vertical setting, and first row cinder notch 231 is arranged on incinerating kiln 23 and the junction of dual firing chamber 24 so that burn
The waste residue that kiln 23 and dual firing chamber 24 produce all is discharged through first row cinder notch 231.
Dual firing chamber 24 is for further being heated flue gas；Preferably, dual firing chamber 24 is provided with the second spray gun 242, the
Two spray guns 242 connect with the 5th feed end 241, for spraying high heating value waste liquid to dual firing chamber 24；Described high heating value waste liquid refers to
It is the calorific value flammable waste liquid that is more than 3500kcal/kg, such as used oil etc..High heating value waste liquid makes the temperature in dual firing chamber 24 maintain
At 1100-1200 DEG C, thoroughly destroy the harmful substance in flue gas by fire.
Waste-heat recovery device 25, for flue gas carries out heat exchange cooling, collects the part lime-ash in flue gas simultaneously；Waste heat returns
The bottom of receiving apparatus 25 is provided with second row cinder notch 251, and second row cinder notch 251 is communicated in high temperature smelting furnace 13, and waste residue is through second row
After cinder notch 251 is discharged, can be transported in high temperature smelting furnace 13 by conveying worm.Preferably, waste-heat recovery device 25 is provided with
The steam formed after steam outfan 252, the water in waste-heat recovery device 25 and flue gas heat exchange, can be defeated by steam
Go out end 252 output, be used for heating high heating value waste liquid, preheated air and generating.
Deacidification reactor for remove in flue gas with acidic materials.In this programme, deacidification reactor is that half dry type removes
Acid reactor 26, what it was internal is arranged over alkali liquor spray thrower 261, and the acidic materials in flue gas spray with alkali liquor spray thrower 261
Akaline liquid react and removed；The 3rd slag-drip opening 262, the 3rd slag-drip opening 262 and the second outfan it is provided with bottom it
291 connections, product and residue alkali liquor deposit to reactor bottom, enter into the second outfan by the 3rd slag-drip opening 262
291, and finally it is transported to the second feed end 211；Preferably, deacidification reactor also includes dry type deacidification reactor 27, and dry type is removed
Acid reactor 27 is arranged between half dry type deacidification reactor 26 and cleaner unit 28, and dry type deacidification reactor 27 removes with half dry type
Acid reactor 26 connects with cleaner unit 28.Dry type deacidification reactor 27 can remove the acidic materials in flue gas further.
Cleaner unit 28 for remove in flue gas with dust, preferably sack cleaner；It is provided with blower fan 282 downstream,
By blower fan 282, the flue gas being disposed is extracted out, and be discharged in air by chimney 283.The bottom of cleaner unit 28 is provided with
4th slag-drip opening 281, the 4th slag-drip opening 281 connects with the second outfan 291；The dust that cleaner unit 28 is collected is through the 4th slag-drip opening
281 enter the second outfan 291, then are transported to the second feed end 211；Disable because of failure and other reasons when high temperature smelting furnace 13
Time, dust can deliver to the 3rd outfan 292, security landfill after harmlessness disposing.
High-temperature fusion furnace system includes that additive mixes device 12, high temperature smelting furnace 13 and chilling dreg removing system 14；Add
Material mixes device 12 and connects with high temperature smelting furnace 13, and it is provided with the first feed end 11 of correspondence, and the first feed end 11 is for height
Adding additive in temperature melting furnace 13, additive can be the material such as sodium oxide, calcium oxide, and it can make the waste residue in high temperature smelting furnace
It is more likely formed glass melt.
Body of heater is provided with heater 131, and heater 131 is for adding thermode and/or burner.Heater 131 can be high temperature
Melting furnace 13 provides heat, it is ensured that the operation temperature of high temperature smelting furnace 13, it is ensured that in stove, material is in molten condition.Preferably,
High temperature smelting furnace 13 is additionally provided with the drop guide 132 for deriving melt.
Chilling dreg removing system 14 includes chilling tank, chilled water (chw) adding set and dragveyer, chilling tank for accept from
The melt discharged in high temperature smelting furnace 13, chilled water (chw) adding set is for adding chilled water (chw), the Water Quenching Slag of generation to chilling tank
Pulled out by dragveyer.Preferably, a passage it is provided with between chilling dreg removing system 14 and first row cinder notch 231.
Present invention also offers a kind of technique burning smelting process system using dangerous waste disposal, including following step
Rapid:
1) solid waste enters incinerating kiln 23 through drawing-in device 221, and waste liquid sprays into incinerating kiln 23 through the first spray gun 222, and
Burning in kiln, the lime-ash that the acidic materials of generation are collected with deacidification reactor and cleaner unit 28 reacts, generation calcium chloride,
The materials such as calcium sulfate, obtain the first waste residue and the first flue gas；The temperature of the first waste residue is up to 800-1000 DEG C, then by first
Slag-drip opening 231 enters high-temperature fusion furnace system；
2) from incinerating kiln 23 the first flue gas out, under the effect of high temperature smelting furnace 13 thermal radiation, after further heating up
Enter dual firing chamber 24；Second spray gun 242 sprays into high heating value waste liquid to dual firing chamber 24 so that the temperature in dual firing chamber 24 maintains 1100
DEG C to 1200 DEG C, thoroughly destroy the harmful substance in the first flue gas by fire, obtain the second flue gas；
3) the second flue gas enters waste-heat recovery device 25, carries out heat exchange with water so that the second flue gas cool-down obtains the 3rd
Flue gas；Form steam after water and the second flue gas heat exchange, can be used for heating high heating value waste liquid, preheated air and generating；Second
Lime-ash remaining in flue gas is deposited to the bottom of waste-heat recovery device 25, forms the second waste residue, sends into height by auger conveyor
In temperature melting furnace 13；
4) rich in a large amount of acidic materials in the 3rd flue gas, after entering into half dry type deacidification reactor 26, with alkali liquor spray thrower
The alkaline reaction of 261 ejections, removes the acidic materials in the 3rd flue gas, obtains the 4th flue gas；Product and residue alkali liquor sink
Amassing reactor bottom, obtain the 3rd waste residue, the 3rd waste residue enters the second outfan 291 after collecting, is then transported to second and enters
Material end 211；
5) the 4th flue gas enters cleaner unit 28, enters air after removing dust device 28 dedusting；The dust collected enters the
Two outfans 291, are then transported to the second feed end 211；When high temperature smelting furnace 13 is stopped using because of failure and other reasons, dust
The 3rd outfan 292 can be delivered to, security landfill after harmlessness disposing；
6) additive through additive mix device 12 enter high temperature smelting furnace 13, together with the first waste residue and the second waste residue
Mix in high temperature smelting furnace 13, melt, form vitreous melt, then discharge high temperature smelting furnace 13 through drop guide 132 and enter urgency
Cold type slag system 14, forms the dense glass body of environmental sound after water quench cooling, and output, to the first outfan 15, can directly be made
Use for construction material.
Preferably, in step 4) in, connect after half dry type deacidification reactor 26 and have dry type deacidification reactor 27, the 4th flue gas
After entering into dry type deacidification reactor 27, react with the alkaline dry powder in dry type deacidification reactor 27, remove the 4th cigarette further
Acidic materials in gas.
Preferably, a passage it is provided with between chilling dreg removing system 14 and first row cinder notch 231.When high temperature smelting furnace 13 occurs
When fault, needs overhaul, high temperature smelting furnace 13 is removed from described passage, and incinerating kiln 23 the first waste residue out is directly discharged into
Chilling dreg removing system 14, collects etc. pending after chilling.
It will be apparent to those skilled in the art that can technical scheme as described above and design, make other various
Corresponding change and deformation, and all these change and deformation all should belong to the protection domain of the claims in the present invention
Within.
Claims (9)
1. the burning smelting process system of a dangerous waste disposal, it is characterised in that include dangerous waste incineration wire system and
High-temperature fusion furnace system；
Incinerating kiln that described dangerous waste incineration wire system includes being sequentially communicated, dual firing chamber, waste-heat recovery device, deacidification reactor
And cleaner unit；
The kiln hood of described incinerating kiln is provided with drawing-in device and the first spray gun, and described drawing-in device is for adding solid in incinerating kiln
Refuse, described first spray gun is for adding waste liquid in incinerating kiln；The kiln tail of described incinerating kiln is provided with first row cinder notch；Described remaining
The bottom of heat reclamation device is provided with second row cinder notch；
Described high-temperature fusion furnace system includes that additive mixes device, high temperature smelting furnace and chilling dreg removing system, described high temperature melting
The body of heater melting stove is provided with heater, and described additive mixes device and connects with high temperature smelting furnace, and described chilling dreg removing system is used
In the melt that cooling down high-temperature melting furnace is discharged；
Described first row cinder notch and second row cinder notch are all communicated in high temperature smelting furnace.
2. the burning smelting process system of dangerous waste disposal as claimed in claim 1, it is characterised in that described dual firing chamber sets
Having the second spray gun, described second spray gun is for adding high heating value waste liquid in dual firing chamber.
3. the burning smelting process system of dangerous waste disposal as claimed in claim 1, it is characterised in that described incinerating kiln is
Horizontal setting, dual firing chamber is vertical setting, and described first row cinder notch is arranged at the junction of incinerating kiln and dual firing chamber.
4. the burning smelting process system of dangerous waste disposal as claimed in claim 1, it is characterised in that described heater is
Add thermode and/or burner.
5. the burning smelting process system of dangerous waste disposal as claimed in claim 1, it is characterised in that described chilling deslagging
System includes chilling tank, chilled water (chw) adding set and dragveyer, and described chilling tank is for accepting what high temperature smelting furnace was discharged
Melt.
6. the burning smelting process system of dangerous waste disposal as claimed in claim 1, it is characterised in that described deacidification is reacted
Being provided with the 3rd slag-drip opening bottom device, described cleaner unit is provided with the 4th slag-drip opening.
7. the burning smelting process system of dangerous waste disposal as claimed in claim 1, it is characterised in that described first deslagging
It is provided with a passage between mouth and chilling dreg removing system.
8. the technique burning smelting process system of employing dangerous waste disposal as described in any one of claim 1-7,
It is characterized in that, comprise the following steps:
1) solid waste enters dangerous waste incineration kiln after drawing-in device mixes, and waste liquid sprays into hazardous waste through the first spray gun and burns
Firing, burns in incinerating kiln and reacts, and obtains the first waste residue and the first flue gas, and the first waste residue enters height by first row cinder notch
Temperature melting furnace；
2) the first flue gas enters dual firing chamber, and harmful substance therein is destroyed by fire in dual firing chamber, obtains the second flue gas；
3) water during the second flue gas enters waste-heat recovery device, with waste-heat recovery device carries out heat exchange so that the second flue gas fall
Temperature obtains the 3rd flue gas；Lime-ash remaining in second flue gas is deposited in waste-heat recovery device, forms the second waste residue, through second row
Cinder notch enters in high temperature smelting furnace；
4) the 3rd flue gas enters into deacidification reactor, with the alkaline reaction of alkali liquor spray thrower ejection, removes the acid in the 3rd flue gas
Property material, obtains the 4th flue gas；Product and residue alkali liquor deposit to reactor bottom, obtain the 3rd waste residue, turn after collection
It is transported to drawing-in device；
5) the 4th flue gas enters cleaner unit, enters air after removing dust device dedusting；The dust collected obtains the 4th waste residue, can
It is transported to drawing-in device or security landfill after harmlessness disposing；
6) additive mixes device through additive and enters high temperature smelting furnace, in high-temperature fusion together with the first waste residue and the second waste residue
Mixed melting in stove, forms vitreous melt, is then discharged out high temperature smelting furnace and enters chilling dreg removing system, forms dense glass
Body.
9. technique as claimed in claim 8, it is characterised in that in step 3) in, form water after water and the second flue gas heat exchange
Steam, described steam can be used for heating high heating value waste liquid, preheated air and generating.
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| CN201610849205.6A CN106152148A (en) | 2016-09-23 | 2016-09-23 | A kind of burning smelting process system of dangerous waste disposal |
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| CN108383402A (en) * | 2018-05-09 | 2018-08-10 | 广州绿泰环境科技有限公司 | A kind of disposal of ash and slag technique and its system |
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| CN109395496A (en) * | 2018-12-19 | 2019-03-01 | 曲靖云能投新能源发电有限公司 | A kind of gas cleaning of garbage incinerating power plant and afterheat utilizing system |
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| CN110030560A (en) * | 2019-04-18 | 2019-07-19 | 中国恩菲工程技术有限公司 | A kind of processing method of hazardous waste |
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