CN206385096U - The high-temperature plasma gasification and melting processing system of trade waste - Google Patents
The high-temperature plasma gasification and melting processing system of trade waste Download PDFInfo
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- CN206385096U CN206385096U CN201720474574.1U CN201720474574U CN206385096U CN 206385096 U CN206385096 U CN 206385096U CN 201720474574 U CN201720474574 U CN 201720474574U CN 206385096 U CN206385096 U CN 206385096U
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- processing system
- plasma gasification
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- flue gas
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
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- Processing Of Solid Wastes (AREA)
- Treatment Of Sludge (AREA)
Abstract
The utility model discloses a kind of high-temperature plasma gasification and melting processing system of trade waste, including plasma gasification unit and waste heat recovery unit, the plasma gasification unit includes plasma gasification furnace and dual firing chamber, the waste heat recovery unit includes the afterheat heat exchanger communicated with the high-temperature flue gas that dual firing chamber produces, and the processing system also includes fume treatment unit and sludge drying system.The processing procedure of the processing system includes：A, other trade wastes in addition to sludge are carried out with plasma gasification processing, the molten slurry discharge recycling in the bottom that processing is produced is burnt to form high-temperature flue gas again to the synthesis gas that processing is produced；B, the cooling that exchanged heat to high-temperature flue gas progress produced in step a are handled；C, to cooling in step a after flue gas carry out fume treatment, arrange outside the flue gas after processing.Processing system of the present utility model can realize minimizing, innoxious, stabilisation and the recycling treatment of trade waste.
Description
Technical field
The utility model is related to a kind of high-temperature plasma gasification and melting processing system of trade waste, belongs to green technology
Field.
Background technology
The a large amount of sludge and other solid waste that the industries such as existing chemical industry, medicine are produced belong to greatly dangerous waste
Thing, it is main to be handled using landfill or by the way of burning for these discarded objects.However, for filling type processing, landfill
Field must be away from residential block, and landfill site seepage prevention processing requirement is high, and disposal is bad to easily cause underground water pollution, in addition, filling
Discarded object in underground, it is possible to decompose and produce inflammable, explosive or toxic gas, harm environment even health of human body.Furthermore, fill out
Burying processing needs to take substantial amounts of soil, and later maintenance cost and risk are higher.And for burning disposal, it is mainly using revolution
The techniques such as kiln, grate furnace and recirculating fluidized bed, incineration temperature is between 850 DEG C -950 DEG C, according in hazardous waste catalogue
Provide, the bottom ash and flying dust produced during the disposal such as dangerous waste incineration, pyrolysis is still fallen within hazardous waste, therefore burning
Reason can only accomplish that minimizing is handled, and not accomplish harmless treatment.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art that there is provided a kind of high-temperature plasma of trade waste
Body gasification and melting processing system, can be achieved minimizing, harmless treatment and the recycling of trade waste.
To achieve the above object, the utility model uses following technical scheme：
A kind of high-temperature plasma gasification and melting processing system of trade waste, including plasma gasification unit and remaining
Heat recovery units, wherein：The plasma gasification unit includes plasma gasification furnace and the synthesis gas with plasma gasification furnace
The dual firing chamber communicated is exported, the waste heat recovery unit includes the afterheat heat exchanger communicated with the high-temperature flue gas that dual firing chamber produces,
The processing system also includes being used to handle the fume treatment unit that afterheat heat exchanger changes thermogenetic flue gas.
Preferably：The processing system also includes sludge drying system, and the sludge drying system includes sludge thin layer
Desiccation machine, the dewatered sludge outlet of the sludge drying system is communicated with plasma gasification furnace.
Preferably：The steam (vapor) outlet of the waste heat heat-exchange system is communicated with sludge drying system.
Preferably：The sludge drying system includes flash vessel, the steam condensate warp that the sludge drying system is produced
It is back to after flash vessel heating in residual neat recovering system.
Preferably：Be provided between the flash vessel and preheating heat exchanger in softened water tank, the softened water tank be supplemented with it is de-
Salt solution.
Preferably：The foul smell that the sludge drying system also includes communicating with the gaseous phase outlet of sludge thin layer desiccation machine is washed
Device is washed, and the outlet of the foul smell washer is communicated with dual firing chamber.
Preferably：SNCR denitration device is provided with flue between the dual firing chamber and the afterheat heat exchanger.
Preferably：The fume treatment unit takes off including cyclone dust collectors, air quenching device, sack cleaner, alkali cleaning
Sulphur tower, wet electrical dust precipitator and activated carbon adsorber.
Preferably, it is additionally provided with heating device between the wet electrical dust precipitator and activated carbon adsorber.
Preferably：Normal temperature air is passed through in the air quenching device, the normal temperature air is heated through air quenching device
Had respectively entered afterwards as preheated air in plasma gasification furnace, dual firing chamber and heating device.
The beneficial effects of the utility model are that processing system of the present utility model passes through the high temperature to trade waste
Plasma gasification melt process, can be achieved minimizing, innoxious, stabilisation and the recycling treatment of trade waste.And pin
The dirt that plasma gasification melt process sum is passed through to the trade waste containing sludge, processing system and method for the present utility model
The method that mud drying and other treatment is combined, can effectively solve the problems, such as sludge and other treatments of wastes produced, and dirt of the present utility model
Mud drying and other treatment use contact drying mode, generation it is smelly narrow-minded, and produce foul smell be all introduced at high-temperature plasma
Handled, arranged outside no foul smell in reason unit.Processing cost is low, solves the landfill of the trade wastes such as sludge and burns secondary
Pollution problem, is applicable not only to handle the sludge that each industrial trade such as chemical industry, medicine is produced, is equally applicable to handle industrial enterprise
Produced other trade wastes, including various solid waste, liquid debris and gaseous exhaust thing, with wide
Market application foreground.
Brief description of the drawings
Fig. 1 shows the side of the high-temperature plasma gasification and melting processing system of trade waste described in the utility model
Frame principle schematic；
Fig. 2 shows the height of trade waste described in the utility model according to a kind of embodiment of the present utility model
The detailed process flow figure of isothermal plasma gasifying and melting process for the treatment of.
Embodiment
Embodiment of the present utility model is described further below in conjunction with the accompanying drawings.
As depicted in figs. 1 and 2, high-temperature plasma gasification and melting processing system described in the utility model, including pass through
Plasma gasification unit, waste heat recovery unit and fume treatment unit that pipeline is sequentially communicated, wherein, the plasma gasification
Unit includes scrapper conveyor, plasma gasification furnace, dual firing chamber and deslagging unit, and industrial waste enters plasma by scrapper conveyor
In gasification furnace, and the plasma gasification furnace be further equipped with plasmatorch with produce plasma and cause industrial waste wait from
Plasma gasification reaction generation CO, H occur in sub- gasification furnace2、CH4Deng synthesis gas, subsequent synthesis gas fires to incite somebody to action again by dual firing chamber
Organic principle, CO and H in synthesis gas2Gaseous mixture is oxidized to CO2And H2O, and discharge substantial amounts of heat.The waste heat recovery unit
Including afterheat heat exchanger, the high-temperature flue gas containing a large amount of heat energy that dual firing chamber produces is entered in afterheat heat exchanger with recovered flue gas
In most of heat.Further, it is provided with SNCR denitration on the flue between the dual firing chamber and the afterheat heat exchanger
Device, effectively to remove the nitrogen oxides in flue gas.
The fume treatment unit takes off including the cyclone dust collectors set gradually, air quenching device, sack cleaner, alkali cleaning
Sulphur tower, wet electrical dust precipitator and activated carbon adsorber, cyclone dust removal, urgency are carried out with the flue gas after to being exchanged heat through afterheat heat exchanger
Cold, bag-type dust, caustic wash desulfuration, wet-esp and charcoal absorption etc. are processed so that it finally can be direct by chimney
It is emitted into air.
When processing system described in the utility model is used to handle sludge, the processing system may also include sludge drying
System, the sludge drying system includes sludge thin layer desiccation machine, and sludge is after sludge thin layer desiccation machine drying and other treatment through scraping
Trigger enters in plasma gasification furnace and carries out subsequent treatment as described above.Further, the residual neat recovering system warp
Thermogenetic steam is changed to enter in the sludge drying system for the sludge thin layer desiccation machine for carrying out desiccation to sludge
Processing.Further, the sludge drying treatment system also includes producing during flash vessel, sludge drying system drying and other treatment
Raw steam condensate is back to after being heated through flash vessel in residual neat recovering system to be used for afterheat heat exchanger.
Specifically, as shown in Fig. 2 the utility model processing system as described above handles the process bag of trade waste
Include：Industrial waste enters through scrapper conveyor and plasma treatment is carried out in plasma gasification furnace.It can be passed through according to feed material calorific value
Scrapper conveyor adds reducing agent into plasma gasification furnace to ensure that plasma gasification furnace interior etc. reaches stable gasification bar simultaneously
Part, and the reducing agent added is alternatively arranged as the bed in gasification furnace.In the utility model, reduction can be used as using coke
In agent, plasma gasification furnace during oxygen excess, reducing atmosphere can be reached by coke, also, coke calorific value is higher, can supplement
The heat input of ion gasification furnace, the electric energy input of reduction plasmatorch.In addition, using coke as bed, because coke is close
Degree is low, and it is swum in above molten bath, and processing material, which can then be fallen on, carries out gasification process on coke bed.According to handled material
Amount, the addition of the reducing agent is generally not more than the 10% of the inventory.Plasma gasification process belongs to anoxic gasification
And non-burning, plasma gasification furnace bottom melting zone temperature can reach 1450-1600 DEG C, and its top gasification zone is up to 1200 DEG C
More than.During plasma gasification, also preheated air can be passed through into the plasma gasification furnace, to improve processing unit
The thermal efficiency.Inorganic matter in the bottom of plasma gasification furnace, industrial waste is melt into for molten slurry and by deslagging unit
Discharge, it can obtain product after cooling treatment, and nontoxic glass slugging is can obtain according to the material component of the product, its
It can be used to build the road as sandstone aggregate, may be made as foam glass or heat preservation rock etc..In the utility model, it can also pass through
Scrapper conveyor adds lime stone, cullet etc. into plasma gasification furnace as fluxing agent, effectively to reduce fusing point and the increasing in molten bath
Plus the mobility in molten bath, the form of slagging tap of the molten slurry of adjustment plasma gasification furnace bottom, preferably form glass slugging.According to residing
The amount of the material of reason, the addition of the fluxing agent is generally not more than the 5% of the inventory.The gas on plasma gasification furnace top
Change the generation of region gasification reaction CO, H2、CH4Deng synthesis gas, subsequent synthesis gas burns with by having in synthesis gas again into dual firing chamber
Machine composition, CO and H2Gaseous mixture is oxidized to CO2And H2O, and discharge substantial amounts of heat；Wherein, the temperature of the dual firing chamber is higher than 1100
DEG C, residence time of the synthesis gas in dual firing chamber is more than 2s.Also, in combustion, it can be also passed through into the dual firing chamber
Preheated air.
Burnt again through dual firing chamber formation high-temperature flue gas enter it is entrained to reclaim in high-temperature flue gas in afterheat heat exchanger
Most of heat.Further, SNCR denitration dress is provided with the flue between the dual firing chamber and the afterheat heat exchanger
Put, and ammoniacal liquor is sprayed into the SNCR denitration device, effectively to remove the nitrogen oxides in flue gas.
Flue gas after cooling through afterheat heat exchanger enters and dust removal process is carried out in cyclone dust collectors, handles the flying dust produced
It is recyclable and be periodically again fed in plasma gasification furnace and handled.Temperature after cyclone dust collectors dust removal process is higher than
500 DEG C of flue gas enter in air quenching device carry out force air cooling treatment so that flue-gas temperature in 1s chilling by 500
Less than 200 DEG C are chilled to more than DEG C, to avoid the generation of dioxin.Meanwhile, the normal temperature being passed into the air quenching device is empty
Gas is heated obtained preheated air and can had respectively entered in plasma gasification furnace and dual firing chamber as preheating as described above
Air.
The flue gas for being chilled to less than 200 DEG C through air quenching device, which is entered, carries out purified treatment in sack cleaner, enter one
Activated carbon and calcium hydroxide powder can be also passed through in step ground, the sack cleaner, activated carbon and the calcium hydroxide powder exists
Fully contacted with flue gas in sack cleaner, to adsorb the dioxin and furans carried secretly in flue gas, and remove part sulfur dioxide
Deng sour gas.The flying dust that generation is handled in the sack cleaner is recyclable and be periodically again fed in plasma gasification furnace
Handled.
Flue gas after sack cleaner purified treatment enters progress caustic wash desulfuration processing in caustic wash desulfuration tower, with effective
The content of the sour gas such as sulfur dioxide in flue gas, hydrogen chloride is reduced, while the part dust in flue gas can also be removed.
Then, flue gas is entered in wet electrical dust precipitator, effectively to remove the molecule in flue gas, it is ensured that in flue gas
Particle content is less than 5mg/Nm3, reach minimum discharge requirement.
Flue gas after being handled through wet electrical dust precipitator enters progress charcoal absorption processing in activated carbon adsorber, enters one
Step ground, in the utility model, also can be set a heating device, wet type electricity between the wet electrical dust precipitator and activated carbon adsorber
Flue gas of the temperature that deduster comes out less than 100 DEG C enters back into activated carbon adsorber after being first warming up to more than 100 DEG C through heating device
Carry out adsorption treatment.Further, free cooler out of breath is passed through in the heating device and changes thermogenetic preheated air, in order to
Heat exchange being carried out in heating device with flue gas and saving the energy, the flue gas after heat exchange can be discharged directly.Activated carbon adsorber is as having
The fume treatment auxiliary of effect, it can adsorb the harmful substance such as particulate matter in flue gas, it is ensured that the qualified discharge of flue gas.
Flue gas after activated carbon adsorber adsorption treatment can be directly discharged into air in the presence of air-introduced machine by chimney.
The use of air-introduced machine can ensure that whole system is negative pressure system, to ensure that flue gas will not outwards be discharged by flue and equipment.Together
When, for monitoring fume emission data, it can also set flue gas to monitor component on-line on chimney, with examinations fume emission number
According to.It will be appreciated by persons skilled in the art that the characteristic of the flue gas according to produced by processing procedure, cigarette of the present utility model
The each processing unit of gas processing system can be adjusted correspondingly, to meet different fume treatment requirements and it is met country
Your emission request of relevant criterion.
When containing sludge in trade waste, the processing system may also include sludge drying system, and the sludge is done
Change system includes sludge thin layer desiccation machine.Sludge enters in sludge thin layer desiccation machine and carries out drying and other treatment so that after desiccation
Moisture percentage in sewage sludge is down to less than 30%.Then, the sludge can be entered in plasma gasification furnace by scrapper conveyor and carried out as above
Described subsequent treatment.Or, the sludge drying system also includes spiral water cooler, and sludge after desiccation enters spiral shell
Enter in dewatered sludge feed bin and store after being cooled down in rotation water cooler, when can after a certain amount of dewatered sludge that is stored with dewatered sludge feed bin
Entered by scrapper conveyor and subsequent treatment as described above is carried out in plasma gasification furnace.Further, the afterheat heat exchanger
It is middle to be used for the drying and other treatment of sludge in the sludge drying system through changing thermogenetic high-temperature steam and enter.Also, it is described
Sludge drying treatment system also includes the steam condensate warp produced during flash vessel, the drying and other treatment of the sludge drying system
It is back in residual neat recovering system and is used for afterheat heat exchanger after flash vessel heating.Further, the flash vessel and waste heat
Regular replenishment in softened water tank, the softened water tank is additionally provided between heat exchanger desalted water, and the hot water after being heated through flash vessel is advanced
Enter and entered back into after carrying out desalting processing in softened water tank in afterheat heat exchanger, to realize recycling for soft water.In addition, the sludge
Anhydration system may also include the foul smell produced during foul smell washer, sludge thin layer desiccation machine drying and other treatment and be washed into foul smell
Washing deodorization is carried out in device, the foul smell after washing, which enters, carries out burning disposal in dual firing chamber, the desiccation that washing is produced is coagulated water and entered
Sewage treatment plant is handled.
Processing system and method for the present utility model, by plasma gasification melt process, can be achieved trade waste
Minimizing, innoxious, stabilisation and recycling treatment.And phase is handled by the sludge drying of plasma gasification melt process sum
With reference to method, can effectively solve the problems, such as sludge and other treatments of wastes produced, processing cost is low, solves the Industry Wastes such as sludge
The landfill and burning secondary pollution problem of gurry, with wide market application foreground.
The utility model is by preferred embodiment having carried out detailed explanation.However, by studying carefully above,
Change and increase to each embodiment are also apparent to those of ordinary skill in the art.It is intended that institute
There are these to change and increase to fall in the utility model scope of the claims.Term used herein is only to tool
The embodiment of body is illustrated, and it, which is not intended to, limits utility model.Unless otherwise defined, it is used herein all
Term (including technical term and scientific terminology) is identical with the understanding of the utility model one of ordinary skill in the art.It is public
The function or structure known are for brief and clear consideration or repeat no more.
Claims (10)
1. a kind of high-temperature plasma gasification and melting processing system of trade waste, including plasma gasification unit and waste heat
Recovery unit, it is characterised in that：The plasma gasification unit includes plasma gasification furnace and the conjunction with plasma gasification furnace
The dual firing chamber communicated is exported into gas, the waste heat that the waste heat recovery unit includes communicating with the high-temperature flue gas that dual firing chamber produces exchanges heat
Device, the processing system also includes being used to handle the fume treatment unit that afterheat heat exchanger changes thermogenetic flue gas.
2. processing system according to claim 1, it is characterised in that：The processing system also includes sludge drying system,
The sludge drying system includes sludge thin layer desiccation machine, the dewatered sludge outlet of the sludge drying system and plasma gasification furnace
Communicate.
3. processing system according to claim 2, it is characterised in that：The steam (vapor) outlet and sludge of the waste heat heat-exchange system
Anhydration system is communicated.
4. processing system according to claim 2, it is characterised in that：The sludge drying system includes flash vessel, described
The steam condensate that sludge drying system is produced is back in residual neat recovering system after being heated through flash vessel.
5. processing system according to claim 4, it is characterised in that：It is provided between the flash vessel and preheating heat exchanger
Desalted water is supplemented with softened water tank, the softened water tank.
6. the processing system according to any one in claim 2-5, it is characterised in that：The sludge drying system is also wrapped
Include the foul smell washer communicated with the gaseous phase outlet of sludge thin layer desiccation machine, and outlet and the dual firing chamber's phase of the foul smell washer
It is logical.
7. the processing system according to any one in claim 1-5, it is characterised in that：The dual firing chamber and the waste heat
SNCR denitration device is provided with flue between heat exchanger.
8. the processing system according to any one in claim 1-5, it is characterised in that：The fume treatment unit includes
Cyclone dust collectors, air quenching device, sack cleaner, caustic wash desulfuration tower, wet electrical dust precipitator and activated carbon adsorber.
9. processing system according to claim 8, it is characterised in that：The wet electrical dust precipitator and activated carbon adsorber it
Between be additionally provided with heating device.
10. processing system according to claim 9, it is characterised in that：Normal temperature air has been passed through in the air quenching device,
The normal temperature air has respectively entered plasma gasification furnace, dual firing chamber and liter after the heating of air quenching device as preheated air
In warm device.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720474574.1U CN206385096U (en) | 2017-05-02 | 2017-05-02 | The high-temperature plasma gasification and melting processing system of trade waste |
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| CN201720474574.1U CN206385096U (en) | 2017-05-02 | 2017-05-02 | The high-temperature plasma gasification and melting processing system of trade waste |
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| CN206385096U true CN206385096U (en) | 2017-08-08 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106987275A (en) * | 2017-05-02 | 2017-07-28 | 山东博润工业技术股份有限公司 | The high-temperature plasma gasification and melting processing system and method for trade waste |
| CN107746066A (en) * | 2017-10-19 | 2018-03-02 | 光大环境科技（中国）有限公司 | Ammonium chloride preparation system and method for lime-ash plasma melting processing system |
| CN110848715A (en) * | 2019-11-27 | 2020-02-28 | 中国计量大学 | Thermal desorption soil drying system for recycling waste heat of secondary combustion chamber and using method |
| CN113958959A (en) * | 2021-11-12 | 2022-01-21 | 光大环保技术研究院（深圳）有限公司 | Method for controlling dioxin emission in flying ash plasma melting process |
| CN115212694A (en) * | 2022-07-22 | 2022-10-21 | 光大环境科技（中国）有限公司 | Method and device for treating fly ash plasma molten flue gas |
-
2017
- 2017-05-02 CN CN201720474574.1U patent/CN206385096U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106987275A (en) * | 2017-05-02 | 2017-07-28 | 山东博润工业技术股份有限公司 | The high-temperature plasma gasification and melting processing system and method for trade waste |
| CN107746066A (en) * | 2017-10-19 | 2018-03-02 | 光大环境科技（中国）有限公司 | Ammonium chloride preparation system and method for lime-ash plasma melting processing system |
| CN107746066B (en) * | 2017-10-19 | 2020-11-03 | 光大环境科技（中国）有限公司 | Ammonium chloride preparation system and method for ash plasma melting treatment system |
| CN110848715A (en) * | 2019-11-27 | 2020-02-28 | 中国计量大学 | Thermal desorption soil drying system for recycling waste heat of secondary combustion chamber and using method |
| CN113958959A (en) * | 2021-11-12 | 2022-01-21 | 光大环保技术研究院（深圳）有限公司 | Method for controlling dioxin emission in flying ash plasma melting process |
| CN113958959B (en) * | 2021-11-12 | 2024-03-26 | 光大环保技术研究院（深圳）有限公司 | Method for controlling dioxin emission in fly ash plasma melting process |
| CN115212694A (en) * | 2022-07-22 | 2022-10-21 | 光大环境科技（中国）有限公司 | Method and device for treating fly ash plasma molten flue gas |
| CN115212694B (en) * | 2022-07-22 | 2023-10-03 | 光大环境科技（中国）有限公司 | Method and device for treating fly ash plasma fusion flue gas |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191216 Address after: No. 369, Yumin Road, high tech Zone, Zibo City, Shandong Province Patentee after: Shandong Borun Environmental Protection Technology Co., Ltd Address before: 255000 Shandong Province, Zibo City Yumin Shandong province high tech Industrial Development Zone of Zibo Road No. 169 Patentee before: Shandong Borun Process Industrial Technology Corp., Ltd. |
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| TR01 | Transfer of patent right |