CN107052029A - A kind of refuse incineration flying dust electric arc melting system - Google Patents
A kind of refuse incineration flying dust electric arc melting system Download PDFInfo
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- CN107052029A CN107052029A CN201710304621.2A CN201710304621A CN107052029A CN 107052029 A CN107052029 A CN 107052029A CN 201710304621 A CN201710304621 A CN 201710304621A CN 107052029 A CN107052029 A CN 107052029A
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- flying dust
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- 239000000428 dust Substances 0.000 title claims abstract description 90
- 238000002844 melting Methods 0.000 title claims abstract description 73
- 230000008018 melting Effects 0.000 title claims abstract description 73
- 238000010891 electric arc Methods 0.000 title claims abstract description 65
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 29
- 239000003546 flue gas Substances 0.000 claims abstract description 29
- 229910001385 heavy metal Inorganic materials 0.000 claims abstract description 27
- 239000000463 material Substances 0.000 claims abstract description 21
- 150000003839 salts Chemical class 0.000 claims abstract description 19
- 238000000746 purification Methods 0.000 claims abstract description 6
- 239000000203 mixture Substances 0.000 claims abstract description 5
- 239000007789 gas Substances 0.000 claims description 29
- 238000000926 separation method Methods 0.000 claims description 28
- 238000007254 oxidation reaction Methods 0.000 claims description 22
- 230000003647 oxidation Effects 0.000 claims description 21
- 239000000654 additive Substances 0.000 claims description 18
- 230000000996 additive effect Effects 0.000 claims description 18
- 239000000779 smoke Substances 0.000 claims description 18
- 238000010521 absorption reaction Methods 0.000 claims description 17
- 230000006911 nucleation Effects 0.000 claims description 16
- 238000010899 nucleation Methods 0.000 claims description 16
- 229910052751 metal Inorganic materials 0.000 claims description 14
- 239000002184 metal Substances 0.000 claims description 14
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 12
- 239000003518 caustics Substances 0.000 claims description 11
- 230000008676 import Effects 0.000 claims description 11
- 239000000126 substance Substances 0.000 claims description 11
- 239000007788 liquid Substances 0.000 claims description 9
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 8
- 229910052760 oxygen Inorganic materials 0.000 claims description 8
- 239000001301 oxygen Substances 0.000 claims description 8
- 239000002923 metal particle Substances 0.000 claims description 7
- 238000002156 mixing Methods 0.000 claims description 7
- 238000009835 boiling Methods 0.000 claims description 5
- 229910052799 carbon Inorganic materials 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 5
- 229910002804 graphite Inorganic materials 0.000 claims description 5
- 239000010439 graphite Substances 0.000 claims description 5
- 239000002893 slag Substances 0.000 claims description 5
- 239000006096 absorbing agent Substances 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 4
- 230000001590 oxidative effect Effects 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 239000007921 spray Substances 0.000 claims description 4
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 claims description 3
- 229910021538 borax Inorganic materials 0.000 claims description 3
- 239000006063 cullet Substances 0.000 claims description 3
- 239000007770 graphite material Substances 0.000 claims description 3
- 239000004576 sand Substances 0.000 claims description 3
- 239000004328 sodium tetraborate Substances 0.000 claims description 3
- 235000010339 sodium tetraborate Nutrition 0.000 claims description 3
- 238000006701 autoxidation reaction Methods 0.000 claims description 2
- 238000001816 cooling Methods 0.000 claims description 2
- 239000002737 fuel gas Substances 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
- 239000010419 fine particle Substances 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 12
- 239000010881 fly ash Substances 0.000 abstract description 10
- 238000000034 method Methods 0.000 abstract description 8
- 238000012545 processing Methods 0.000 abstract description 7
- 238000004064 recycling Methods 0.000 abstract description 7
- 230000002378 acidificating effect Effects 0.000 abstract description 5
- 238000011084 recovery Methods 0.000 abstract description 4
- 239000002699 waste material Substances 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 abstract description 3
- 230000007812 deficiency Effects 0.000 abstract description 3
- 238000009472 formulation Methods 0.000 abstract description 2
- 238000010309 melting process Methods 0.000 abstract description 2
- 231100000252 nontoxic Toxicity 0.000 abstract description 2
- 230000003000 nontoxic effect Effects 0.000 abstract description 2
- 230000006872 improvement Effects 0.000 description 9
- 239000002956 ash Substances 0.000 description 8
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 7
- 239000003610 charcoal Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000002253 acid Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 235000019504 cigarettes Nutrition 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 238000004056 waste incineration Methods 0.000 description 3
- 239000003513 alkali Substances 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 238000010314 arc-melting process Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005660 chlorination reaction Methods 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000011552 falling film Substances 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000002920 hazardous waste Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005025 nuclear technology Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B5/00—Operations not covered by a single other subclass or by a single other group in this subclass
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/001—Dry processes
-
- 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
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The present invention discloses a kind of refuse incineration flying dust electric arc melting system；The technical problem of solution：The technical deficiency that landfill method, acidleach formulation are present is chelated for what the existing flying dust referred in background technology was handled.The technical scheme of use：A kind of refuse incineration flying dust electric arc melting system, including flying dust pretreatment system, electric arc melting system and flue gas purification system.Advantage：The fusing fly ash for being classified as dangerous waste, can be converted into nontoxic vitreum, by most of heavy metals immobilization in vitreum by invention；Resource recovery is using the heavy metal, salt and acidic materials volatilized in melting process simultaneously, so as to farthest realize the innoxious of flying dust processing, minimizing, recycling.
Description
Technical field
The present invention relates to incineration treatment of garbage field, specifically a kind of refuse incineration flying dust electric arc melting system
System.
Background technology
Waste incineration is swift and violent in China's development in recent years, and current 40% or so townm refuse is by the way of waste incineration
Handled.Waste incineration can produce 3-5% flying dust, because containing substantial amounts of heavy metal He being listed in dangerous waste bioxin
Thing.The method of flying dust processing has chelating landfill, acidleach to refer to melting and solidification etc..At present, chelating landfill is handled for main flying dust
Technology, but technology Dui bioxin and salts substances are not acted on, and long-term it is placed in landfill yard heavy metal stabilizing not
Foot.In addition, developed country's using plasma fusing fly ash technical finesse flying dust, melting and solidification technology such as current Japan and Europe
It can generate inert vitreum, but the technology is remained secondary flying ash amount is big and intractable problem.
The content of the invention
The technical problems to be solved by the invention are：For the chelating landfill of the existing flying dust processing referred in background technology
The technical deficiency that method, acidleach formulation are present.
The design philosophy of the present invention is, to solve the above problems, proposing a kind of refuse incineration flying dust electric arc melting
System；The technology is directed to above-mentioned deficiency, the fusing fly ash for being classified as dangerous waste is converted into nontoxic vitreum, by most of weight
It is metal-cured in vitreum；While Resource recovery is using the heavy metal, salt and acidic materials volatilized in melting process,
So as to farthest realize the innoxious of flying dust processing, minimizing, recycling.
The purpose of the present invention is to propose a kind of new flying dust electric arc melting system, not only can be by most of heavy metals immobilization
Seal up for safekeeping in the vitreum of fusing fly ash formation, and recyclable volatilization and the secondary flying ash being entrained with and its a small amount of huge sum of money contained
Category, salts substances and acidic materials, are most advanced at present, most so that by flying dust is innoxious, minimizing and recycling accomplish ultimate attainment
The flying dust treatment technology of environmental protection.
In order to solve the above technical problems, the technical solution adopted by the present invention is：
A kind of refuse incineration flying dust electric arc melting system, including flying dust pretreatment system, electric arc melting system and cigarette
Gas cleaning system；
Flying dust pretreatment system includes flying dust storage bin, additive storage bin, batch mixer and batcher, flying dust storage bin
Outlet is all connected with and connected the import of batch mixer, the outlet batcher import of batch mixer with the outlet of additive storage bin；
Electric arc melting system includes flying dust electric arc melting stove, and the inlet communication batcher of flying dust electric arc melting stove is exported；
The bottom of flying dust electric arc melting stove is provided for the motor that driving melting shaft is rotated, and flying dust electric arc melting stove uses graphite arc simultaneously
Powered with dc source, anodic-cathodic is graphite material and cathode center line-spacing body of heater center line 100-300mm and by leading
Electric grips are connected with power cathode, and anode is located at molten bath bottom, and anode scope covers whole bottom of furnace body substantially, and passes through
Conductive chuck clamping is connected with positive source；
Flue gas purification system includes oxidation separation chamber, chilling nucleation tower, sack cleaner, film-falling absorption tower, caustic wash tower, work
Property charcoal absorber, air-introduced machine and chimney, aoxidize the smoke outlet of the inlet communication flying dust electric arc melting stove of separation chamber, oxidation separation
The gas feed of the smoke outlet chilling nucleation tower of room, oxidation separation chamber bottom liquid outlet discharge be cooled to boiling point with
Under alkaline metal salt material；The gas feed removing of the smoke outlet sack cleaner of chilling nucleation tower is a small amount of tiny
Grain thing, the solid outlet discharge heavy metal particles material of chilling nucleation tower；The smoke outlet falling film absorption of sack cleaner
The gas feed of tower, the gas feed spray of the smoke outlet caustic wash tower of film-falling absorption tower removes SO2, film-falling absorption tower
Liquid outlet reclaims HC1 solution；The gas feed absorption of the smoke outlet active carbon adsorber of caustic wash tower is not wherein complete
The material of removal, the gas discharged by the gas outlet of active carbon adsorber is extracted out by air-introduced machine and directly connects air by chimney.
Improvement to technical solution of the present invention, between the outlet of flying dust storage bin and the import of batch mixer and in addition
Spiral electron scale is respectively provided between the outlet of agent storage bin and the import of batch mixer.
Further improvement to above-mentioned technical proposal, in the exit of flying dust storage bin and going out in additive storage bin
Electronic rotation valve is respectively provided with mouthful.The setting of electronic rotation valve uses VFC, coordinates determining for spiral electron scale control material
Amount output.
Improvement to technical solution of the present invention, additive include river sand, borax, cullet and lime-ash after crushing and
The different ratio mixture of above-mentioned substance.
Glass is made into lag cooler in improvement to technical solution of the present invention, the molten slag after the melting of flying dust electric arc melting stove
Body is discharged, and a small amount of molten metal is discharged and reclaimed by metal discharge hole.
Improvement to technical solution of the present invention, contains heavy metal, salts substances and sour gas from flying dust electric arc melting stove
The flue gas of body enters to be passed through in oxidation separation chamber, oxidation separation chamber oxygen-enriched contains CO, H by what melting furnace was discharged2Deng fuel gas
Flue gas oxidizing fire, and keep temperature levels in oxidation separation chamber real in the range of 1050-1100 DEG C by adjusting oxygen-rich concentration
Existing alkaline metal salt is separated with heavy metal chloride in the equipment.
Improvement to technical solution of the present invention, the flue gas for coming autoxidation separation chamber enters chilling nucleation tower, between the tower is used
Flue-gas temperature is down to 200 DEG C by the cold form of water receiving sharply above from 1000 DEG C, rapid in this temperature range heavy metal chloride
Cool and form the higher heavy metal particles thing of purity, and avoid the generation again of bioxin.
Improvement to technical solution of the present invention, the material of the outlet discharge of batch mixer is by bucket elevator lifting to flying dust electricity
Arc melting furnace feeding warehouse height, and be delivered to through batcher sealing at the feeding warehouse of flying dust electric arc melting stove.
Improvement to technical solution of the present invention, speed rotation and rotating speed of the flying dust electric arc melting stove shaft with 0.2-1r/min
It is adjustable.Because cathode eccentricity is set, in shaft rotary course the contact surface of electric arc and flying dust can be made wider, slow rotating speed also may be used
Ensure that electric arc keeps stable in shaft rotation process.
Improvement to technical solution of the present invention, flying dust presses 1 with additive:0.1-1:0.3 proportions mixing.
The important technical advantage of this new bipolar electrode arc melting process is summarized as follows：
1st, refuse incineration flying dust electric arc melting system of the invention, can be handled the fusing fly ash for being classified as hazardous waste
Generation can be used as the vitreum of construction material, and reclaim heavy metal substance, salts substances and hydrochloric acid, can not solve prior art
Secondary flying ash problem Resource recoveryization processing certainly, farthest realizes the minimizing of incineration of refuse flyash, innoxious and money
Source.
2nd, refuse incineration flying dust electric arc melting system of the invention, using the arc melting technique of graphite electrode, heat
Conversion efficiency is higher than conventional plasma torch fusion technology, and without working gas, the flue gas main matter of generation is in flying dust
Volatile materials, flue gas content is few, it is entrained walk heat it is few, heat loss is low.
3rd, refuse incineration flying dust electric arc melting system of the invention, using graphite arc fusion technology, compared to wait from
For the melting of daughter torch, gas stream in the stove disturbance is few, and the fly ash particulate of entrainment is few, and secondary flying ash yield is few, reduces later stage cigarette
Gas disposal cost.
4th, refuse incineration flying dust electric arc melting system of the invention, is arranged, melting furnace can be slow using cathode eccentricity
The form of rotation, the face that electric arc is contacted with flying dust compared with conventional electric arc melting stove is wider, and slowly rotation can fly shaft improving
Ensure the stability of electric arc while ash fusibility.
5th, refuse incineration flying dust electric arc melting system of the invention, using the oxidation isolation technics of original creation, utilizes cigarette
The characteristics of alkaline metal salt and heavy metal chloride boiling point differ greatly in gas, salt and chloride are separated at high temperature, from
And the recycling of salts substances is realized, while melt flue gas provides energy input for oxidation separation chamber, realize filling for energy
Divide and utilize.
6th, refuse incineration flying dust electric arc melting system of the invention, using the chilling of original creation into nuclear technology, utilizes water
Cold indirect heat exchange, flue-gas temperature is reduced rapidly, it is to avoid while bioxin regenerates, and recycles the heavy metal thing of high-purity
Matter, solves the problems, such as to perplex the secondary flying ash that current Plasma heat teratment technology is difficult to avoid that and solved.
7th, refuse incineration flying dust electric arc melting system of the invention, absorbs HCl using film-falling absorption tower and salt is made
Acid, realizes the recycling of hydrochloric acid, only remains a small amount of SO in part2Alkali cleaning is needed to remove, processing cost is low, acidic materials recycling degree
It is high.
Brief description of the drawings
The drawings below of the present invention is used to understand the present invention in this as the part of the present invention.Shown in the drawings of this hair
Bright embodiment and its description, for explaining the principle of the present invention.
Fig. 1 reclaims the process route schematic block diagram of electric arc fusing fly ash system for new recycling proposed by the present invention.
Embodiment
Technical solution of the present invention is described in detail below, but protection scope of the present invention is not limited to the implementation
Example.
To make present disclosure more obvious understandable, further retouched below in conjunction with accompanying drawing 1 and embodiment
State.
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only to explain the present invention, not
For limiting the present invention.
As shown in figure 1, refuse incineration flying dust electric arc melting system, including flying dust pretreatment system, electric arc melting system
System and flue gas purification system.
Flying dust pretreatment system includes flying dust storage bin, additive storage bin, electronic rotation valve, spiral electron scale, batch mixing
Machine, bucket elevator and batcher, the outlet of flying dust storage bin are all connected with the outlet of additive storage bin and connect batch mixer
Import, between the outlet of flying dust storage bin and the import of batch mixer and in the outlet of additive storage bin and batch mixer
Spiral electron scale is respectively provided between import.It is respectively provided with the exit of flying dust storage bin and in the exit of additive storage bin
Electronic rotation valve.The material of the outlet discharge of batch mixer arrives flying dust electric arc melting stove feeding warehouse height by bucket elevator lifting,
And be delivered to through batcher sealing at the feeding warehouse of flying dust electric arc melting stove.The flying dust that burning power plant sack cleaner is produced
The system material storage Tibetan area is transported to by factory's inside strake machine or special transport vehicle, with river sand, borax, cullet and after crushing
The additive such as lime-ash press 1 through spiral electron scale:0.1-1:0.3 proportions mixing.Fly flying dust storage bin and additive storage
Feed bin delivery outlet sets electronic rotation valve, using VFC, coordinates spiral electron scale to be capable of the quantitative output of control material.Point
The flying dust and additive of also known as weight, which enter, carries out abundant batch mixing in mixing and blending machine, constantly carry out stirring mutually, mix, rear to enter
Bucket elevator lifting is delivered at feeding warehouse to electric arc melting stove feeding warehouse height, and through batcher sealing.
Equipment contained by electric arc melting system has flying dust electric arc melting stove, granulating unit, electrode, lowering or hoisting gear, holder, electricity
Source etc..Electric arc is graphite arc, is powered using dc source, anodic-cathodic is graphite material, cathode center line-spacing body of heater center
Line about 100-300mm, is connected, anode is located at molten bath bottom, anode scope is covered substantially by conductive chuck clamping with power cathode
Whole bottom of furnace body is covered, and is connected by conductive chuck clamping with positive source.Flying dust is at a temperature of 1400-1500 DEG C molten
Melt in stove and melt process is carried out to flying dust, the slag after melting is discharged into slag cooler through slag-drip opening, it is rapid cold in slag cooler
But inert vitreum is formed, and heavy metal is sealed up for safekeeping is solidificated in vitreum, the metal of melting is then arranged by metal discharge hole
Go out to reclaim.Fusing fly ash stove drives shaft to be rotated with 0.2-1r/min speed by bottom motors, because cathode eccentricity is set,
In shaft rotary course the contact surface of electric arc and flying dust can be made wider, slow rotating speed can also ensure electric arc in shaft rotation process
Keep stable.The flue gas containing combustibles such as CO, H2 of melting furnace discharge enters oxidation separation chamber.
Flue gas purification system includes oxidation separation chamber, chilling nucleation tower, sack cleaner, film-falling absorption tower, caustic wash tower, work
Property charcoal absorber, air-introduced machine and chimney.Aoxidize the smoke outlet of the inlet communication flying dust electric arc melting stove of separation chamber, oxidation separation
The gas feed of the smoke outlet chilling nucleation tower of room, the liquid outlet discharge alkaline metal salt material of oxidation separation chamber；
The gas feed of the smoke outlet sack cleaner of chilling nucleation tower removes a small amount of tiny particles content, and chilling nucleation tower is consolidated
Body outlet discharge heavy metal particles material；The gas feed of the smoke outlet film-falling absorption tower of sack cleaner, falling liquid film is inhaled
The gas feed spray for receiving the smoke outlet caustic wash tower of tower removes SO2, and the liquid outlet recovery HC1 of film-falling absorption tower is molten
Liquid；The material that the gas feed absorption of the smoke outlet active carbon adsorber of caustic wash tower is not removed wherein completely, by activity
The gas of the gas outlet discharge of charcoal absorber is extracted out by air-introduced machine directly connects air by chimney.Contain a huge sum of money from melting furnace
The flue gas of category, salts substances and sour gas initially enters oxidation separation chamber, and it is 30%-99%'s that oxidation separation chamber, which is passed through concentration,
It is oxygen-enriched to a small amount of combustible oxidizing fire present in flue gas.Due in flue gas noncombustible matter content with flyash ingredient change and
Change, the Rich Oxygen Amount that oxidation separation chamber is passed through is adjusted with the testing result for the CO concentration analyzers for being arranged on separation chamber outlet
Section.In addition, adjusting oxygen-rich concentration on the premise of oxidizing fire oxygen demand is met, it is ensured that the temperature in oxidation separation chamber is maintained at
In the range of 1050-1100 DEG C, alkaline metal salt gas is due to gradually condensing into liquid less than boiling point by stove in this temperature range
Bottom is discharged, and heavy metal chloride boiling point is generally less than 900 DEG C, therefore still exists in a gaseous form in the present apparatus and enter with flue gas
Enter next flow, so as to realize the separation of alkaline metal salt and heavy metal chloride.Subsequent flue gas enters chilling nucleation tower, the tower
Flue-gas temperature is down to 200 DEG C sharply above from 1000 DEG C using the form of indirect water-cooling, in this temperature range heavy metal chlorination
Thing cools rapidly and forms the higher heavy metal particles thing of purity.By chilling nucleation tower discharge flue gas be mainly HCl and
The acidic materials such as SO2 and a small amount of remaining heavy metal substance, after removing a small amount of tiny particles content through sack cleaner, containing acid
The flue gas of matter sequentially enters film-falling absorption tower and caustic wash tower, and HCl realizes recovery in film-falling absorption tower, SO2 then through caustic wash tower by
Alkali lye spray is removed.Discharging standards are even much lower than to ensure that the system smoke-discharging pollution thing concentration is met, the system is in acid
Property gas removal after absorbent charcoal adsorber is set, the heavy metal particles of participation and organic pollution are removed.By this flue gas
The flue gas of cleaning system processing can fully meet house refuse and dangerous waste discharged in burning standard, be discharged into greatly by air-introduced machine and chimney
In gas.
It should be appreciated that above-mentioned embodiment is only intended to citing and illustration purpose, rather than limit the invention to be retouched
In the range of the embodiment stated.It will be understood by those skilled in the art that the invention is not limited in above-described embodiment, according to this hair
Bright thinking can also derive more deformations and change, and these deformations and modification are within the scope of the present invention.
Part that the present invention does not relate to is same as the prior art or can be realized using prior art.
As described above, although the present invention has been represented and described with reference to specific preferred embodiment, it must not be explained
For to the limitation of itself of the invention., can be right under the premise of the spirit and scope of the present invention that appended claims are defined are not departed from
Various changes can be made in the form and details for it.
Claims (10)
1. a kind of refuse incineration flying dust electric arc melting system, it is characterised in that including flying dust pretreatment system, electric arc melting
System and flue gas purification system；
Flying dust pretreatment system includes flying dust storage bin, additive storage bin, batch mixer and batcher, the outlet of flying dust storage bin
The import of batch mixer, the outlet batcher import of batch mixer are all connected with and connect with the outlet of additive storage bin；
Electric arc melting system includes flying dust electric arc melting stove, and the inlet communication batcher of flying dust electric arc melting stove is exported；In flying dust
The bottom of electric arc melting stove is provided for the motor that driving melting shaft is rotated, and flying dust electric arc melting stove is using graphite arc and with directly
Stream power supply is powered, and anodic-cathodic is graphite material and cathode center line-spacing body of heater center line 100-300mm and by conductive clip
Head clamping is connected with power cathode, and anode is located at molten bath bottom, and anode scope covers whole bottom of furnace body substantially, and passes through conduction
Grips are connected with positive source；
Flue gas purification system includes oxidation separation chamber, chilling nucleation tower, sack cleaner, film-falling absorption tower, caustic wash tower, activated carbon
Absorber, air-introduced machine and chimney, aoxidize the smoke outlet of the inlet communication flying dust electric arc melting stove of separation chamber, oxidation separation chamber
The gas feed of smoke outlet chilling nucleation tower, the liquid outlet discharge of oxidation separation chamber bottom is cooled to below boiling point
Alkaline metal salt material；The gas feed of the smoke outlet sack cleaner of chilling nucleation tower removes a small amount of fine particle
Thing, the solid outlet discharge heavy metal particles material of chilling nucleation tower；The smoke outlet film-falling absorption tower of sack cleaner
Gas feed, the smoke outlet caustic wash tower of film-falling absorption tower gas feed spray remove SO2, the liquid of film-falling absorption tower
Reclaim HC1 solution in body outlet；The gas feed absorption of the smoke outlet active carbon adsorber of caustic wash tower is not gone wherein completely
The material removed, the gas discharged by the gas outlet of active carbon adsorber is extracted out by air-introduced machine and directly connects air by chimney.
2. refuse incineration flying dust electric arc melting system as claimed in claim 1, it is characterised in that in flying dust storage bin
Spiral electricity is respectively provided between outlet and the import of batch mixer and between the outlet of additive storage bin and the import of batch mixer
Sub- scale.
3. refuse incineration flying dust electric arc melting system as claimed in claim 2, it is characterised in that in flying dust storage bin
Exit and it is respectively provided with electronic rotation valve in the exit of additive storage bin.
4. refuse incineration flying dust electric arc melting system as claimed in claim 1, it is characterised in that additive includes river
Sand, borax, cullet and lime-ash and the different ratio mixture of above-mentioned substance after crushing.
5. refuse incineration flying dust electric arc melting system as claimed in claim 1, it is characterised in that in flying dust electric arc melting
Vitreum discharge is made into lag cooler in molten slag after stove melting, and a small amount of molten metal is discharged and reclaimed by metal discharge hole.
6. refuse incineration flying dust electric arc melting system as claimed in claim 1, it is characterised in that molten from flying dust electric arc
Melt in the entrance oxidation of the flue gas containing heavy metal, the salts substances and sour gas separation chamber of stove, oxidation separation chamber and be passed through oxygen-enriched incite somebody to action
What melting furnace was discharged contains CO, H2Oxidation separation chamber is kept Deng the flue gas oxidizing fire of fuel gas, and by adjusting oxygen-rich concentration
Interior temperature levels realize that alkaline metal salt is separated with heavy metal chloride in the equipment in the range of 1050-1100 DEG C.
7. refuse incineration flying dust electric arc melting system as claimed in claim 1, it is characterised in that come autoxidation separation chamber
Flue gas enter chilling nucleation tower, flue-gas temperature is down to 200 by the tower sharply above using the form of indirect water-cooling from 1000 DEG C
DEG C, cooled rapidly in this temperature range heavy metal chloride and form the higher heavy metal particles thing of purity.
8. refuse incineration flying dust electric arc melting system as claimed in claim 1, it is characterised in that the outlet row of batch mixer
The material gone out is delivered to flying dust electricity by bucket elevator lifting to flying dust electric arc melting stove feeding warehouse height, and through batcher sealing
At the feeding warehouse of arc melting furnace.
9. refuse incineration flying dust electric arc melting system as claimed in claim 1, it is characterised in that flying dust electric arc melting stove
Shaft is with 0.2-1r/min speed rotation and rotating speed is adjustable.
10. refuse incineration flying dust electric arc melting system as claimed in claim 1, it is characterised in that flying dust and additive
By 1:0.1-1:0.3 proportions mixing.
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| CN201710304621.2A CN107052029A (en) | 2017-05-03 | 2017-05-03 | A kind of refuse incineration flying dust electric arc melting system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710304621.2A CN107052029A (en) | 2017-05-03 | 2017-05-03 | A kind of refuse incineration flying dust electric arc melting system |
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| CN107052029A true CN107052029A (en) | 2017-08-18 |
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| CN201710304621.2A Pending CN107052029A (en) | 2017-05-03 | 2017-05-03 | A kind of refuse incineration flying dust electric arc melting system |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107504500A (en) * | 2017-09-26 | 2017-12-22 | 航天环境工程有限公司 | A kind of plasma Incinerating and melting system for handling ashes and clinker and the method using system processing ashes and clinker |
| CN108296260A (en) * | 2018-01-17 | 2018-07-20 | 上海煜工环保科技有限公司 | A kind of domestic garbage incineration flyash recycling corollary system |
| CN110860553A (en) * | 2019-12-13 | 2020-03-06 | 启源新能源科技（张家口）有限公司 | Plasma synergistic resistance furnace fly ash treatment system and treatment method |
| CN111470503A (en) * | 2020-03-24 | 2020-07-31 | 山东锐轩新材料有限公司 | Recycling method of garbage power generation fly ash chelate |
| CN112355033A (en) * | 2020-11-16 | 2021-02-12 | 浙江蓝太能源工程有限公司 | High-temperature melting system of thermal plasma torch |
| CN112642842A (en) * | 2021-01-01 | 2021-04-13 | 天津壹鸣环境科技股份有限公司 | Method and system for recycling household garbage incineration fly ash through high-temperature melting and full resource classification |
| CN113441536A (en) * | 2021-08-31 | 2021-09-28 | 中国恩菲工程技术有限公司 | Fly ash treatment system and fly ash treatment method |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3985945A (en) * | 1974-05-21 | 1976-10-12 | Allmanna Svenska Elektriska Aktiebolaget | Direct-current arc furnace |
| JP2000274649A (en) * | 1999-03-25 | 2000-10-03 | Ishikawajima Harima Heavy Ind Co Ltd | Ash melting furnace |
| CN1908518A (en) * | 2006-08-21 | 2007-02-07 | 东北大学 | Electric arc molten processing system and method for processing rubbish combustion ash |
| CN203750409U (en) * | 2014-01-28 | 2014-08-06 | 上海黎明资源再利用有限公司 | Flue gas purifying treatment device in waste incineration process |
| CN105276588A (en) * | 2014-07-25 | 2016-01-27 | 龙伟 | Rotary laminar-flow plasma waste incinerator |
| CN105344695A (en) * | 2015-10-28 | 2016-02-24 | 长安大学 | Waste incineration fly ash treatment method and device |
| CN106402896A (en) * | 2016-11-10 | 2017-02-15 | 光大环境科技（中国）有限公司 | Waste incineration fly ash plasma melting treatment system |
| CN206056236U (en) * | 2016-08-30 | 2017-03-29 | 福建青拓镍业有限公司 | A kind of rotatable electric arc furnace |
| CN206911916U (en) * | 2017-05-03 | 2018-01-23 | 江苏天楹环保能源成套设备有限公司 | A kind of refuse incineration flying dust electric arc melting system |
-
2017
- 2017-05-03 CN CN201710304621.2A patent/CN107052029A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3985945A (en) * | 1974-05-21 | 1976-10-12 | Allmanna Svenska Elektriska Aktiebolaget | Direct-current arc furnace |
| JP2000274649A (en) * | 1999-03-25 | 2000-10-03 | Ishikawajima Harima Heavy Ind Co Ltd | Ash melting furnace |
| CN1908518A (en) * | 2006-08-21 | 2007-02-07 | 东北大学 | Electric arc molten processing system and method for processing rubbish combustion ash |
| CN203750409U (en) * | 2014-01-28 | 2014-08-06 | 上海黎明资源再利用有限公司 | Flue gas purifying treatment device in waste incineration process |
| CN105276588A (en) * | 2014-07-25 | 2016-01-27 | 龙伟 | Rotary laminar-flow plasma waste incinerator |
| CN105344695A (en) * | 2015-10-28 | 2016-02-24 | 长安大学 | Waste incineration fly ash treatment method and device |
| CN206056236U (en) * | 2016-08-30 | 2017-03-29 | 福建青拓镍业有限公司 | A kind of rotatable electric arc furnace |
| CN106402896A (en) * | 2016-11-10 | 2017-02-15 | 光大环境科技（中国）有限公司 | Waste incineration fly ash plasma melting treatment system |
| CN206911916U (en) * | 2017-05-03 | 2018-01-23 | 江苏天楹环保能源成套设备有限公司 | A kind of refuse incineration flying dust electric arc melting system |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107504500A (en) * | 2017-09-26 | 2017-12-22 | 航天环境工程有限公司 | A kind of plasma Incinerating and melting system for handling ashes and clinker and the method using system processing ashes and clinker |
| CN108296260A (en) * | 2018-01-17 | 2018-07-20 | 上海煜工环保科技有限公司 | A kind of domestic garbage incineration flyash recycling corollary system |
| CN110860553A (en) * | 2019-12-13 | 2020-03-06 | 启源新能源科技（张家口）有限公司 | Plasma synergistic resistance furnace fly ash treatment system and treatment method |
| CN110860553B (en) * | 2019-12-13 | 2024-04-30 | 成都启川新能源科技有限公司 | Plasma synergistic resistance furnace fly ash treatment system and treatment method |
| CN111470503A (en) * | 2020-03-24 | 2020-07-31 | 山东锐轩新材料有限公司 | Recycling method of garbage power generation fly ash chelate |
| CN112355033A (en) * | 2020-11-16 | 2021-02-12 | 浙江蓝太能源工程有限公司 | High-temperature melting system of thermal plasma torch |
| CN112355033B (en) * | 2020-11-16 | 2023-11-10 | 浙江蓝太能源工程有限公司 | High-temperature melting system of thermal plasma torch |
| CN112642842A (en) * | 2021-01-01 | 2021-04-13 | 天津壹鸣环境科技股份有限公司 | Method and system for recycling household garbage incineration fly ash through high-temperature melting and full resource classification |
| CN112642842B (en) * | 2021-01-01 | 2023-12-05 | 天津壹鸣环境科技股份有限公司 | Method and system for high-temperature melting and full-resource classification recycling treatment of household garbage incineration fly ash |
| CN113441536A (en) * | 2021-08-31 | 2021-09-28 | 中国恩菲工程技术有限公司 | Fly ash treatment system and fly ash treatment method |
| CN113441536B (en) * | 2021-08-31 | 2021-12-07 | 中国恩菲工程技术有限公司 | Fly ash treatment system and fly ash treatment method |
| CN113751471A (en) * | 2021-09-14 | 2021-12-07 | 西安交通大学 | Multi-fuel coupled system and method for online melting treatment of hazardous waste incineration fly ash |
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