CN206911913U - One kind combines washing and plasma fusion processing flying ash system - Google Patents
One kind combines washing and plasma fusion processing flying ash system Download PDFInfo
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- CN206911913U CN206911913U CN201720480953.1U CN201720480953U CN206911913U CN 206911913 U CN206911913 U CN 206911913U CN 201720480953 U CN201720480953 U CN 201720480953U CN 206911913 U CN206911913 U CN 206911913U
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- flying dust
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Abstract
The utility model discloses a kind of washing and plasma fusion of combining and handles flying ash system；The technical problem of solution：The technical deficiency existing for the existing plasma atomising device that is referred in background technology.The technical scheme of use：One kind combines washing and plasma fusion processing flying ash system, including for being washed to flying dust and in the flying dust water wash system of extraction salts substances, the formation system of mixed-forming is carried out to the flying dust by washing, the fume treatment recovery system that the article shaped after shaping is sent into the article shaped fusing system of melting furnace and handled the caused flue gas after high-temperature fusion by feed arrangement.Advantage：This combination is washed and plasma fusion processing flying ash system, can be by flying dust innoxious, minimizing completely, and has accomplished the recycling of danger wastes.
Description
Technical field
It the utility model is related to a kind of washing and plasma fusion of combining and handle flying ash system, be related to dangerous waste
Thing process field.
Background technology
Waste incineration is quickly grown in China, will be increasingly becoming the major way of China's townm refuse processing.By 2015,
The whole nation forms the ton per day of application of city life garbage ability to be harmless 87.1 ten thousand, selects and burns in domestic garbage was harmlessly treated ability
Burning technology reaches 35%, and eastern region reaches 48% from incineration technology.3-5% flying dust production is had in Refuse Incineration Process
It is raw, because containing substantial amounts of total metal He bioxin is listed in danger wastes.
The method of flying dust processing has chelating landfill, acidleach carries, chemical agent stabilizes, melting and solidification etc..Chelating landfill and
Chemical agent, which stabilizes, is not acted on heavy metal chelating stabilization, Dui bioxin and salts substances using chemical agent, for a long time
Being placed on landfill yard mid-long term stability can not determine to be likely to turn into pollution source；Acidleach carry can only by heavy metal in flying dust and
Salts substances extract, and heavy metal solution is still that pollution sources need to handle；Melting and solidification is because can flying dust is innoxious, decrement
Change and recycling is accomplished ultimate attainment, be current state-of-the-art flying dust treatment technology.Flying dust melts under the conditions of 1300-1600 DEG C, has
Machine thing may be decomposed, gasify, and inorganic matter, which is melted, is cooled to vitreum.
Melting and solidification is divided into fuel melting and plasma fusion.Fuel melting has consumption fuel, increase treatment quantity
The problem of；Plasma fusion has the characteristics of efficiency height etc., currently increasingly receives attention.Plasma fusion uses
Electric arc or torch can provide energy and melt flying dust completely, but fusing fly ash process still suffer from 30-50% materials can be with
Flue gas and volatilize melting furnace, the material of this part mainly include using SO2, HCl as the sour gas of main component and with
Secondary flying ash material based on CaCl2, NaCl, KCl, metal chloride etc., the material of this part are easy to shape without processing
Into secondary pollution.
Found by the elementary analysis in melting process, chlorion has promotion to make in volatilization of the melting process for heavy metal
With.Heavy metal chloride easily separates out because low boiling point is readily volatilized, after cooling causes heavy metal to be enriched in secondary flying ash, two
The processing of secondary flying dust is currently a problem.Chlorine mainly exists with inorganic forms in flying dust, and accounting reaches more than 90%, passes through water
The chlorine of this part can be eluted by washing, while washing can elute wherein 40% sulfate radical material, and then reduce heavy metal
Volatility reduce secondary flying ash amount and acidic materials presence.
The content of the invention
Technical problem to be solved in the utility model is：Melted for the existing plasma flying dust referred in background technology
Melt existing technical deficiency.
Design philosophy of the present utility model is melted to solve the above problems, proposing a kind of washing and plasma of combining
Melt processing flying ash system；The system, by washing, inorganic salts therein is eluted, carried in waste water first by flying dust
Salts substances are taken, flying dust passes through washing and drying aftershaping, is added to by feed system in melting furnace, organic in the case of a high temperature
Thing is degraded, and inorganic matter becomes vitreum after fully melting cooling, and part heavy metal is cured in vitreum, part heavy metal
With sour gas as flue gas volatilizees away, entered by wet scrubber tower in the aqueous solution, the waste water of the part is by a huge sum of money
Category precipitation and Na2SO4Recovery reaches discharge standard, can be by flying dust innoxious, minimizing completely by whole process, and does
The recycling of danger wastes is arrived.
In order to solve the above technical problems, the technical solution adopted in the utility model is：
One kind combine washing and plasma fusion processing flying ash system, including for flying dust is washed and
The flying dust water wash system of salts substances is extracted, the formation system of mixed-forming is carried out to the flying dust by washing, is filled by feeding
Put at by the article shaped fusing system of the article shaped feeding melting furnace after shaping and to the caused flue gas after high-temperature fusion
The fume treatment recovery system of reason.
The system, incineration of refuse flyash can be transformed into the vitreum being safe from harm, sodium chloride, sulfuric acid by the system
Sodium, potassium chloride, can be by flying dust innoxious, minimizing and recycling completely.
Improvement to technical solutions of the utility model, flying dust water wash system include flying dust storage tank, water washing tank, sewage collecting
Pond, centrifuge and drying device；The outlet of flying dust storage tank connects and connects water washing tank；The material outlet of water washing tank passes through centrifugation
The material inlet of machine, the material inlet of the material outlet connection drying device of centrifuge, the delivery port connection sewage of centrifuge are received
Ji Chi and sewage collecting pool connection washing pot bottom outlet of sewer.
Further improvement to above-mentioned technical proposal, flying dust and water are with 1 in water washing tank：3~8m/V ratios mix.
Flying dust water wash system, the flying dust in flying dust storage tank is transported in water washing tank by conveying worm, in water washing tank
Middle flying dust is with water with 1:After 3~8m/V ratios mix 0.5~4h, rear supernatant to be precipitated is discharged into sewage collecting pool, mud
Water mixed liquid, which is entered after centrifuge dewatering, enters drying device drying, discharge of wastewater caused by dehydration to sewage collecting pool,
KCl, NaCl and heavy metal precipitation thing is made by precipitation, filtering and evaporation in the waste water being collected into.
Improvement to technical solutions of the utility model, formation system include transition flying dust storage tank, additive storage tank, mixed
Material machine and forming machine；The material outlet of the charging aperture connection drying device of transition flying dust storage tank, the thing of transition flying dust storage tank
Material outlet connects the charging aperture of batch mixer after being mixed jointly with the additive outlets of additive storage tank；Batch mixer outlet discharge
Material is sent into forming machine by elevator.
Further improvement to above-mentioned technical proposal, the material outlet of transition flying dust storage tank and adding for additive storage tank
Add agent to export and be respectively provided with meter, the additive in flying dust and additive storage tank in transition flying dust storage tank passes through spiral transferring
Machine is sent to be transported in batch mixer.
Further improvement to above-mentioned technical proposal, the particulate matter diameter discharged from the discharging opening of forming machine is 1-200mm.
Improvement to technical solutions of the utility model, article shaped fusing system include plasma torch melting furnace, by into
Material after the processing of type system is sent into plasma torch melting furnace by feed arrangement.Plasma torch melting furnace is existing skill
Conventional equipment in art；Plasma is produced between the graphite cathode and lower anode on top, and high-temperature electric arc can be by flying dust
Melted with additive agent mixture, turn into vitreum after cooling.Article shaped is even into melting furnace, by electric arc in melting furnace
System provides 1200-1600 DEG C of high temperature, and article shaped can be melted into , bioxin will be by pyrolytic, heavy metal classes material one
Divide and be fixed in slag, another part then followed by gas and enter in fume treatment recovery system.
Improvement to technical solutions of the utility model, fume treatment recovery system include dual firing chamber, wet scrubber tower, pocket type
Deduster, active carbon adsorber, air-introduced machine and chimney；The flue gas of the air inlet connection plasma torch melting furnace of dual firing chamber goes out
Mouthful, the air inlet of the gas outlet connection wet scrubber tower of dual firing chamber, the coolant outlet connection collecting pit of wet scrubber tower, wet type
The air inlet of the gas outlet connection sack cleaner of scrubbing tower is used to intercept unnecessary dust and heavy metal particles thing, bag-type dusting
The air inlet of the gas outlet connection active carbon adsorber of device is used to adsorb the material not removed completely wherein, by active carbon adsorber
The gas of gas outlet discharge extracted out by air-introduced machine and by chimney directly connect air.Flying dust caused flue gas after melting enters
Enter and aoxidize imflammable gas into dual firing chamber；Temperature is dropped to 50- by the flue gas through peroxidating rapidly by wet scrubber tower
80℃；Waste water is produced through supercooling, is discharged into collecting pit, after precipitation of heavy metals, reclaims Na2SO4；Removed through over-quenching
After acidic materials and dust, unnecessary dust and heavy metal particles thing are intercepted by sack cleaner；It is unnecessary by intercepting
Dust and the flue gas of heavy metal particles are passed through by air-introduced machine again after the material that activated-carbon device absorption may not wherein remove completely
Smoke stack emission is crossed into air.
Further improvement to above-mentioned technical proposal, cleaning solution is that alkali lye is used to remove the acid in flue gas in wet scrubber tower
Property material and dust；Lead to oxygen into wet scrubber tower by the Na in wet scrubber tower2SO4Na2SO4 is oxidized to, in wet scrubber tower
Solution be discharged into collecting pit；Collecting pit connects sewage collecting pool.
Improvement to technical solutions of the utility model, feed arrangement are bucket elevator.
The utility model has the advantage that compared with prior art：
1st, combination washing of the present utility model and plasma fusion processing flying ash system, it is innoxious：Flying dust conduct
A kind of danger wastes, the vitreum obtained after plasma technique is handled are complete harmless compound matter, other volatile matters
Matter can use as product.
2nd, combination washing of the present utility model and plasma fusion processing flying ash system, minimizing：Flying dust passes through
After plasma technique processing, obtained glass weight can reduce about 40%, and volume can be reduced by about 2/3.
3rd, combination washing of the present utility model and plasma fusion processing flying ash system, recycling：Flying dust passes through
After plasma technique processing, vitreum is that complete harmless compound matter can use as building materials, obtain salts substances be by
Product purity after enrichment is higher, completely it is contemplated that follow-up extraction salts substances, SO in flue gas2Na2SO can be made4
Resource product.
4th, combination washing of the present utility model and plasma fusion processing flying ash system, complete closed loop：The technology
Flying dust can be handled into sliver to accomplish completely to close, it is not necessary to the problem of considering by secondary pollution.
Brief description of the drawings
Fig. 1 is the system diagram that this combination washing and plasma fusion handle flying ash system.
Embodiment
Technical solutions of the utility model are described in detail below, but the scope of protection of the utility model is not limited to
The embodiment.
To make content of the present utility model more obvious understandable, done further below in conjunction with accompanying drawing 1 and embodiment
Description.
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation
Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only explaining this
Utility model, it is not used to limit the utility model.
The utility model disclose it is a kind of combine washing and plasma fusion processing flying ash system, including for
Flying dust is washed and extraction salts substances flying dust water wash system, to by washing flying dust carry out mixed-forming into
Type system, by feed arrangement 10 by after shaping article shaped be sent into melting furnace article shaped fusing system and to high-temperature fusion after
The fume treatment recovery system that is handled of caused flue gas.Feed arrangement 10 is bucket elevator.
Flying dust water wash system includes flying dust storage tank 1, water washing tank 2, sewage collecting pool 3, centrifuge 4 and drying device 5；Fly
The outlet of grey storage tank connects and connects water washing tank；The material outlet of water washing tank by the material inlet of centrifuge, centrifuge
Material outlet connects the material inlet of drying device, the delivery port connection sewage collecting pool and sewage collecting pool connection water of centrifuge
The outlet of sewer of cleaning of evaporator bottom.Flying dust and water are with 1 in water washing tank：3~8m/V ratios mix.
Formation system includes transition flying dust storage tank 6, additive storage tank 7, batch mixer 8 and forming machine 9；Transition flying dust stores up
The material outlet of the charging aperture connection drying device of batch can, the material outlet of transition flying dust storage tank and adding for additive storage tank
Agent outlet is added to connect the charging aperture of batch mixer after mixing jointly；The material of batch mixer outlet discharge is sent into forming machine by elevator
It is interior.The material outlet of transition flying dust storage tank and the additive outlets of additive storage tank are respectively provided with meter, the storage of transition flying dust
The additive in flying dust and additive storage tank in batch can is transported in batch mixer by conveying worm.From going out for forming machine
The particulate matter diameter of material mouth discharge is 1-200mm.
Article shaped fusing system includes plasma melting furnace 11, and the material after formation system is handled is filled by feeding
Put and be sent into plasma melting furnace.
Fume treatment recovery system includes dual firing chamber 12, wet scrubber tower 13, sack cleaner 14, active carbon adsorber
15th, air-introduced machine 16 and chimney 17；The exhanst gas outlet of the air inlet connection plasma torch melting furnace of dual firing chamber, the outlet of dual firing chamber
The air inlet of mouth connection wet scrubber tower, the coolant outlet connection collecting pit 18 of wet scrubber tower, the outlet of wet scrubber tower
The air inlet of mouth connection sack cleaner is used to intercept unnecessary dust and heavy metal particles thing, and the gas outlet of sack cleaner connects
The air inlet of logical active carbon adsorber is used to adsorb the material not removed completely wherein, is discharged by the gas outlet of active carbon adsorber
Gas extracted out by air-introduced machine and by chimney directly connect air.Cleaning solution is that alkali lye is used to remove in flue gas in wet scrubber tower
Acidic materials and dust；Lead to oxygen into wet scrubber tower by the Na in wet scrubber tower2SO3It is oxidized to Na2SO4, wet scrubbing
Solution in tower is discharged into collecting pit；Collecting pit connects sewage collecting pool.
Specific implementation process：
Flying dust is transported to flying dust plasma fusion processing workshop, and flying dust dries after wherein salts substances are removed after washing
Entered in certain proportion by feed system in melting furnace after mixed-forming with additive after dry, by electric arc in melting furnace
Applying energy keeps 1200-1600 DEG C of body of heater to form innoxious glass by natural cooling after flying dust and additive agent mixture melting
Glass body, recycling is transported outward after cooling and is used.Some sour gas, particulate matter and salts substances can enter tail gas with tail gas
In processing system, flue gas enters chilling tower and reduces the temperature to 50-80 DEG C after dual firing chamber aoxidizes combustible constituent, heavy metal
It can be entered with salts substances in the aqueous solution, processing aqueous solution recovery Na2SO4, unnecessary sour gas and heavy metal are by activity
It is discharged into after charcoal absorption in air.
Incineration of refuse flyash plasma fusion processing system, includes following step：
1. flying dust is washed：Flying dust is with water with 1:After 3~8m/V ratios mix 0.5~4h, rear supernatant row to be precipitated
Sewage collecting pool is put into, muddy water mixed solution is entered such as drying device, solar drying machine after entering centrifuge dewatering
Similar drying device is dried, discharge of wastewater caused by dehydration to sewage collecting pool, and the waste water being collected into is by precipitation, filtering and steams
KCl, NaCl and heavy metal precipitation thing is made in hair.
1. flying dust is molded:The flying dust additive mixing such as sandy soil etc of flying dust and 10-50% ratios is equal after washing and drying
Mixture is made by the ball-type material or using extruder club is made that average grain diameter is 1-200mm by forming machine after even
Matter is broken into 1-200mm small particle materials；
2. article shaped melts：Article shaped provides 1200- in melting furnace even into melting furnace by Arc System
1600 DEG C of high temperature, article shaped can be melted into , bioxin will be fixed on slag by pyrolytic, a heavy metal classes material part
In, another part then followed by gas and enter in exhaust treatment system；
3. slag cools down：Flying dust after high-temperature fusion will be cooled down by slag-drip opening uniformly through slag cooler by air
With heat exchange two kinds of modes cooperatively formed vitreum, be firstly stored in hole, wait run up to it is a certain amount of after be transported to building materials
Prepare factory；
4. fume treatment：For fly ash mixture after high-temperature process, some particulate matters, sour gas will after washing
It can enter in gas, be that wherein harmful substance will be entered using the mode of wet method in the aqueous solution the purpose of this patent, Zhi Houkao
Consider recovery Na2SO4。
(1)CO、H2Harmful imflammable gas such as S is oxidized to CO in dual firing chamber2, SO2Deng gas；
(2) 1200-1300 DEG C of gas can be reached in dual firing chamber exit, 50-80 is reduced the temperature to through over-quenching tower
DEG C, heavy metal and SO2It is soluble in water by alkali liquor absorption；
(3) heavy metal in waste water caused by, which is deposited, to be removed, and reclaims Na afterwards2SO4, finally it is discharged into environment.
(4) standard can be reached in order to ensure to discharge flue gas, flue gas absorbs by absorbent charcoal adsorber not to be located wherein
The heavy metal and sour gas of reason.
5. heavy metal precipitation thing is handled：A caused huge sum of money in the processing of solution and wet method depickling generation solution is produced after washing
It is heavy metal hydroxide to belong to sediment, can be directly introduced in melting furnace as flying dust melts together.
The above-mentioned description to embodiment is understood that for the ease of those skilled in the art and using this reality
Use new patent.Person skilled in the art obviously can make change to these embodiments, and by described herein one
As principle be applied in other embodiment without by creative work.Therefore, the utility model patent is not limited to retouch herein
The embodiment stated, those skilled in the art do not depart from the category of the utility model patent according to the announcement of the utility model patent
The improvement and modification made all should be within the protection domains of the utility model patent.
The utility model is not directed to partly same as the prior art or can realized using prior art.
Claims (10)
1. one kind combines washing and plasma fusion processing flying ash system, it is characterised in that including for entering to flying dust
Water-filling is washed and is extracting the flying dust water wash system of salts substances, and the formation system of mixed-forming is carried out to the flying dust by washing,
Article shaped after shaping is sent into and to caused by after high-temperature fusion by the article shaped fusing system of melting furnace by feed arrangement
The fume treatment recovery system that flue gas is handled.
2. as claimed in claim 1 combine washing and plasma fusion processing flying ash system, it is characterised in that flying dust
Water wash system includes flying dust storage tank, water washing tank, sewage collecting pool, centrifuge and drying device；The outlet of flying dust storage tank connects
Connect and connect water washing tank；The material outlet of water washing tank passes through the material inlet of centrifuge, the material outlet connection drying of centrifuge
The material inlet of device, the delivery port connection sewage collecting pool of centrifuge and the sewage of sewage collecting pool connection washing pot bottom go out
Mouthful.
3. as claimed in claim 2 combine washing and plasma fusion processing flying ash system, it is characterised in that in water
Flying dust and water are with 1 in cleaning of evaporator：3~8m/V ratios mix.
4. as claimed in claim 1 combine washing and plasma fusion processing flying ash system, it is characterised in that shaping
System includes transition flying dust storage tank, additive storage tank, batch mixer and forming machine；The charging aperture connection of transition flying dust storage tank
The material outlet of drying device, the material outlet of transition flying dust storage tank and the additive outlets of additive storage tank mix jointly
The charging aperture of batch mixer is connected afterwards；The material of batch mixer outlet discharge is sent into forming machine by elevator.
5. as claimed in claim 4 combine washing and plasma fusion processing flying ash system, it is characterised in that transition
The material outlet of flying dust storage tank and the additive outlets of additive storage tank are respectively provided with meter, in transition flying dust storage tank
Additive in flying dust and additive storage tank is transported in batch mixer by conveying worm.
6. as claimed in claim 4 combine washing and plasma fusion processing flying ash system, it is characterised in that from into
The particulate matter diameter of the discharging opening discharge of type machine is 1-200mm.
7. as claimed in claim 1 combine washing and plasma fusion processing flying ash system, it is characterised in that shaping
Thing fusing system includes plasma melting furnace, and the material after formation system is handled is sent into plasma by feed arrangement
In melting furnace.
8. as claimed in claim 1 combine washing and plasma fusion processing flying ash system, it is characterised in that flue gas
Processing recovery system includes dual firing chamber, wet scrubber tower, sack cleaner, active carbon adsorber, air-introduced machine and chimney；Dual firing chamber
Air inlet connection plasma torch melting furnace exhanst gas outlet, dual firing chamber gas outlet connection wet scrubber tower air inlet,
The coolant outlet connection collecting pit of wet scrubber tower, the air inlet of the gas outlet connection sack cleaner of wet scrubber tower are used for
Unnecessary dust and heavy metal particles thing are intercepted, the air inlet of the gas outlet connection active carbon adsorber of sack cleaner is used to inhale
The attached material not removed completely wherein is straight by chimney by air-introduced machine extraction by the gas that the gas outlet of active carbon adsorber is discharged
Lead to air in succession.
9. as claimed in claim 8 combine washing and plasma fusion processing flying ash system, it is characterised in that wet type
Cleaning solution is that alkali lye is used to remove the acidic materials and dust in flue gas in scrubbing tower；Lead to oxygen into wet scrubber tower to wash wet type
Wash the Na in tower2SO3It is oxidized to Na2SO4, the solution in wet scrubber tower is discharged into collecting pit；Collecting pit connects sewage collecting
Pond.
10. as claimed in claim 1 combine washing and plasma fusion processing flying ash system, it is characterised in that enters
Material device is bucket elevator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720480953.1U CN206911913U (en) | 2017-05-03 | 2017-05-03 | One kind combines washing and plasma fusion processing flying ash system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720480953.1U CN206911913U (en) | 2017-05-03 | 2017-05-03 | One kind combines washing and plasma fusion processing flying ash system |
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| Publication Number | Publication Date |
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| CN206911913U true CN206911913U (en) | 2018-01-23 |
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| CN201720480953.1U Active CN206911913U (en) | 2017-05-03 | 2017-05-03 | One kind combines washing and plasma fusion processing flying ash system |
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| CN (1) | CN206911913U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107030093A (en) * | 2017-05-03 | 2017-08-11 | 江苏天楹环保能源成套设备有限公司 | One kind combines washing and plasma fusion handles flying ash system |
| CN110176322A (en) * | 2019-05-13 | 2019-08-27 | 江苏天楹环保能源成套设备有限公司 | A kind of middle low-activity solid waste volume reduction processing system and its method |
-
2017
- 2017-05-03 CN CN201720480953.1U patent/CN206911913U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107030093A (en) * | 2017-05-03 | 2017-08-11 | 江苏天楹环保能源成套设备有限公司 | One kind combines washing and plasma fusion handles flying ash system |
| CN110176322A (en) * | 2019-05-13 | 2019-08-27 | 江苏天楹环保能源成套设备有限公司 | A kind of middle low-activity solid waste volume reduction processing system and its method |
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