CN107335677B - A kind of hazardous waste method for innocent treatment and device - Google Patents

A kind of hazardous waste method for innocent treatment and device Download PDF

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Publication number
CN107335677B
CN107335677B CN201710594804.2A CN201710594804A CN107335677B CN 107335677 B CN107335677 B CN 107335677B CN 201710594804 A CN201710594804 A CN 201710594804A CN 107335677 B CN107335677 B CN 107335677B
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storehouse
separating disc
pyrolysis
agitator
gas
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CN107335677A (en
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王瀚唯
王永生
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Beijing Green Angel Environmental Protection Co Ltd
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Beijing Green Angel Environmental Protection Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B09DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09BDISPOSAL OF SOLID WASTE
    • B09B3/00Destroying solid waste or transforming solid waste into something useful or harmless
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10BDESTRUCTIVE DISTILLATION OF CARBONAGEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
    • C10B53/00Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form

Abstract

The present invention relates to a kind of hazardous waste method for innocent treatment and device,The device comprises at least pyrolysis gasifying device,Pyrolysis gasifying device is with the Non-oxygen pyrolytic storehouse set in the way of one and to extraneous be environmentally isolated,Anaerobic pyrolysis storehouse,Catalysis reduction storehouse and the pyrolysis gasification furnace of melter,The first agitator is provided with Non-oxygen pyrolytic storehouse,Non-oxygen pyrolytic storehouse and anaerobic pyrolysis storehouse are separated from one another by the first material separating disc and the second material separating disc that is bonded and can be relatively moved on edge in the axially direction of the first agitator each other,First material separating disc and the second material separating disc are provided with the through hole for closing but being opened wide in the second place in first position in the way of position corresponds to each other,The axle of first material separating disc and the second material separating disc along the first agitator looks up the plate-like piece at least partly protuberance,First material separating disc and the second material separating disc cause the first material separating disc only local close to the helical blade end of the first agitator along its own longitudinal 2 observation in the arc bars of central elevation.

Description

A kind of hazardous waste method for innocent treatment and device
Technical field
The present invention relates to hazardous waste innoxious process for treating field, more particularly to a kind of hazardous waste harmless treatment side Method and device.
Background technology
In recent years, caused industrial waste is up to 2,400,000,000 tons every year in China, and wherein general industrial solid waste is 23.52 hundred million Ton, hazardous waste are 48,000,000 tons, and annual also with 12% growth rate rapid growth.Although country is strengthened to Industrial Solid The management of body waste, particularly hazardous waste, but still the solid waste for having 40% or so is not dealt carefully with, and is simply being looked forward to Portion's interim storage in the industry.Counted according to national environmental protection portion, the industrial solid wastes of the accumulative accumulation in the whole nation have reached 6,600,000,000 tons, account for Ground about 5.5 ten thousand inclines, and annual is in constantly incremental trend.Although some large enterprises have built up landfill yard, but due to not adopting Take strict seepage control measure and lack the management of science, still suffer from the situation of polluted underground water.According to China's relevant law to danger The definition of dangerous waste, it refers to one or several kinds of dangerous with corrosivity, toxicity, inflammability, reactivity or infectivity etc. Characteristic;Or be not excluded for compromising feature, adverse effect may be caused to environment or health, it is necessary to according to danger The solid waste that waste is managed.Traditional fixed-end forces method includes filling up method, burning method, solidification method and chemical method.
However, there is open defect in four kinds of processing modes.First, landfill yard land occupation amount is big, release is rancid poisonous Gas, produce inflammable, explosive or poisonous gas;The carcinogenic substances such as heavy metal are accumulated in soil Shen, cause the permanent dirt of soil Dye.Second, burning method can produce flying dust, flue dust, haze, PM2.5 particulate matters He dioxin severe toxicity pollutant, also produce a large amount of Sour gas and imperfect combustion organic component and clinker.3rd, the leaching rate of the firming body of solidification method is higher, need to apply Cover processing;Because oils, organic acid, metal oxide etc. can hinder coagulating agent hydration reaction, the proportioning of coagulating agent need to be increased Amount, cause firming body solubilized;Firming body loss of properties on aging, it is easily rupturable.4th, it is, for example, kitchen on a small quantity that chemical method, which can only be handled, The organic matter rubbish of rubbish, most hazardous wastes can not all be handled.
Chinese patent (notification number CN101880538B) discloses a kind of novel household garbage pyrolyzing, gasifying and incinerating processing side Method, this method are added in glass electric furnace using cullet or sodium metasilicate as raw material, start glass electric furnace, 1250~1500 Glass metal is fully melted under DEG C high temperature, after 4~10 hours stabilize, by domestic waste continuously from electric glass melting High-temperature glass liquid surface is added at the top of stove, by drying, anaerobic pyrolysis and gasification, house refuse is converted into small molecule Fuel gas, remaining solid residue, which enters in high-temperature glass liquid, to be melted and is converted into glass metal, it is new caused by glass metal from glass The overfall outflow of glass electric smelter, turns into inert glass dregs after cold water water quenching.
Organic matter in rubbish can be completely converted into the fuel gas of high concentration, pyrolysis, gas by the method that the patent provides Exhaust gas volumn caused by change process is very small, and the content of fuel gas is used directly for steam turbine power generation more than 70%.Do not produce Flying ash and new solid waste.However, at least also there is following defect in the method that the patent provides:(1) patent is only right Domestic waste carries out anaerobic pyrolysis and gasification, it is difficult to the Industrial Solid Waste rubbish of complicated components is thoroughly handled, (2) should The glass metal that patent utilization melts under 1250~1500 DEG C of high temperature is formed as Combustion Properties of Municipal Solid Waste and the thermal source of gasification Temperature needed for glass metal is high so that this method energy expenditure is big.On the other hand, the hazardous waste processing unit of prior art is also In the presence of it is easy block, can not realize continous way production, gas caused by heat and decomposition easily spray, it is big to surrounding environment influence etc. all More defects.
The content of the invention
For the deficiency of prior art, the invention provides a kind of hazardous waste harmless treatment device.Described device is extremely Include pyrolysis gasifying device less, the pyrolysis gasifying device is at least to have Non-oxygen pyrolytic storehouse, anaerobic pyrolysis storehouse, catalysis reduction storehouse With the pyrolysis gasification furnace of melter, wherein, in the Non-oxygen pyrolytic storehouse be provided be used for crush the hazardous waste first stirring Device, the second agitator for being used for stirring lime-ash is provided with the Ash transport pipeline of the melter thereunder.Preferably, it is described Non-oxygen pyrolytic storehouse, the anaerobic pyrolysis storehouse, it is described catalysis reduction storehouse and the melter be according to one and to external environment every From mode set.Wherein, the Non-oxygen pyrolytic storehouse and the anaerobic pyrolysis storehouse by being bonded and can be along vertical each other It is separated from one another in the first material separating disc and the second material separating disc relatively moved in the axially direction of first agitator, and institute The first material separating disc is stated close to the helical blade end of the first agitator, resistant to elevated temperatures first material separating disc and second sub-material Disk is provided with the through hole for closing but being opened wide in the second place in first position in the way of position corresponds to each other, wherein, it is described The axle of first material separating disc and second material separating disc along first agitator looks up the plate-like piece at least partly protuberance, The arc bars of first material separating disc and second material separating disc along its own longitudinal 2 observation in central elevation so that described First material separating disc is only local close to the helical blade end of first agitator.Preferably, first material separating disc and institute The second material separating disc is stated to be made by one kind in nitride or carbide.
The Non-oxygen pyrolytic storehouse and anaerobic pyrolysis storehouse of the present invention is separated by material separating disc so that is divided in the Non-oxygen pyrolytic storehouse Semicoke compound caused by solution can enter the anaerobic pyrolysis storehouse and the carbonization at low temperature by the passage on the material separating disc Thing decomposed in the anaerobic pyrolysis storehouse caused by the second mixed gas can be sprayed upwards by the passage on the material separating disc Enter the Non-oxygen pyrolytic storehouse, second mixed gas with after the Non-oxygen pyrolytic storehouse is decomposed caused by the first mixed gas mix The catalysis reduction storehouse is delivered to after conjunction so as to remain relatively stable pressure environment in the pyrolysis gasification furnace.Preferably, The environment of non-malleation is remained in the pyrolysis gasification furnace.It is highly preferred that non-malleation in the pyrolysis gasification furnace for- 2000~-500Pa.In pyrolysis gasification furnace caused by the environment of non-malleation avoids positive pressure operation heat and decompose gas to Outer ejection, so as to not only contribute to the generation of gas, can also solve energy dissipation in the prior art, operation is unsafe to ask Topic, the environment of hazardous waste processing can also be improved, realize green, environmental protection, safe handling.
Further, in order that keeping relatively stable pressure environment in the pyrolysis gasification furnace, material separating disc includes can be Along the first material separating disc and the second material separating disc relatively moved in the axially direction of first agitator.Preferably, First material separating disc and second material separating disc be provided with the way of position corresponds to each other closed in first position but The unlimited through hole in the second place.Originally first material separating disc and second material separating disc are the state being bonded each other, by making It performs dislocation motion, can adjust the aperture of through hole and quantity on first material separating disc and second material separating disc.For example, When semicoke compound in the Non-oxygen pyrolytic storehouse is excessive, first material separating disc and second material separating disc can be made to perform dislocation Move to increase the aperture of through hole and/or quantity, semicoke compound is flowed downwardly into from the through hole in anaerobic pyrolysis storehouse, anoxic heat The longitudinal direction after dislocation motion can be performed by first material separating disc and second material separating disc by solving the second mixed gas in storehouse The anaerobic reaction warehouse is upwardly into the through hole of both sides and/or gap.In another example the hazardous gas caused by pyrolysis in stove , can be by intertwining by first material separating disc and second sub-material when (such as flammable explosive gas, toxic gas etc.) is excessive Position moves to correct position, so that the through hole on first material separating disc and second material separating disc closes completely, interrupts heat The progress of reaction is solved, improves the security of equipment.
Due to being semicoke compound caused by the Non-oxygen pyrolytic storehouse, its viscosity is larger, is easily accumulated in described first point Through hole is caused to block on charging tray, first material separating disc and second material separating disc are arranged to stir along described first by the present invention The axle for mixing device is looked up in the plate-like piece at least partly swelled, is in the arc strip of central elevation along its own longitudinal 2 observation Part, by the extruding, scraping and/or shear action of the helical blade of the first agitator so as to being advantageous to the flowing of semicoke compound. Meanwhile first material separating disc and second material separating disc be after dislocation motion is performed, the first material separating disc and second sub-material Between the through hole of the first step structure of the edge formation variable-width of disk, first material separating disc and second material separating disc also Second step is formed, the helical blade end of first agitator is close to first material separating disc, the rotation of helical blade in addition The dislocation motion of dynamic and first material separating disc and second material separating disc, which can more preferably strike off, accumulates in first material separating disc With the semicoke compound on second material separating disc.On the other hand, after the use of pyrolysis gasification furnace long-time, on furnace wall inevitably It can be thickeied because of the accumulation of semicoke compound, when the present invention can be by work of the central control machine structure based on the pyrolysis gasification furnace Between and/or the thickness of Non-oxygen pyrolytic storehouse furnace wall control first material separating disc and the second material separating disc dislocation motion row Journey.For example, after the pyrolysis gasification furnace works long hours, first material separating disc and institute can be controlled by central control machine structure State the second material separating disc and perform significantly dislocation motion, so as to remove the semicoke compound accumulated on furnace wall and material separating disc.Such as This can not only be avoided air-hole blockage, moreover it is possible to extend the cleaning frequency of the pyrolysis gasification furnace.The present invention the first material separating disc and Second material separating disc is ridge structure, compared to the dividing plate of prior art, has bigger supporting power, is not easy to collapse under pressure.
According to a preferred embodiment, the through hole being distributed on first material separating disc and the second sub-material plate edge Aperture is more than the through-hole aperture being distributed at first material separating disc and the second material separating disc arc protuberance center, and described First material separating disc and second material separating disc reduce the logical of storehouse side close to the catalysis reduction storehouse side to away from the catalysis Hole aperture is in the trend for first reducing and increasing afterwards, and through hole arrangement density is in the trend gradually increased.The through-hole aperture of the present invention exists Center is small, big at edge, small in the close catalysis reduction storehouse side, big in the remote catalysis reduction storehouse side, more favorably Flowed downwardly into semicoke compound in anaerobic pyrolysis storehouse.On the other hand, compared with the region that the first agitator closes on, through hole is remote The region of first agitator has smaller arrangement density, further avoids semicoke compound from being gathered near furnace wall, is advantageous to reality The continous way processing of existing hazardous waste.
According to a preferred embodiment, first material separating disc and second material separating disc are by same drive mechanism To drive and be adjusted by centrally located control device, and the drive mechanism can drive at least two directions First material separating disc and second material separating disc perform dislocation motion, to adjust the aperture of through hole and after compensation works long hours The thickness change of the furnace wall abutted with first material separating disc and second material separating disc.Preferably, first material separating disc and Second material separating disc can be missed one another by the drive mechanism of peripheral hardware;Not only in the axial direction, and diametrically carry out Displacement, changes the aperture of through hole, and then be adapted to handle different danger wastes.After pyrolysis gasification furnace long-time use, Inevitably thickeied on furnace wall because of the accumulation of semicoke compound, first material separating disc is controlled by central control machine structure Dislocation motion is performed with second material separating disc, the semicoke compound accumulated on furnace wall and material separating disc can be removed, so as to mend Repay the thickness change of the furnace wall abutted after working long hours with first material separating disc and second material separating disc.
According to a preferred embodiment, the drive of first material separating disc and second material separating disc in the drive mechanism The dynamic lower dislocation motion performed along the hazardous waste conveying direction and formed in the side for reducing storehouse away from the catalysis to The ledge structure of few two variable-widths, and the pyrolysis gasification furnace passes through the helical blade close to first material separating disc Extruding, scrape and/or shear action and make in the Non-oxygen pyrolytic storehouse caused semicoke compound from first material separating disc and institute State and fallen on the second material separating disc in the through hole of central area in the anaerobic pyrolysis storehouse, and to produce in the anaerobic pyrolysis storehouse The second mixed gas from the adjustable through holes in aperture of first material separating disc and the second material separating disc longitudinal direction both sides to enterprising Enter in the Non-oxygen pyrolytic storehouse.Preferably, the ledge structure of at least two variable-widths is the first material separating disc and the second material separating disc Multiple second steps that the through hole on first step and the first material separating disc and the second material separating disc that edge is formed is formed.It is preferred that Ground, described longitudinal both sides are the both sides perpendicular with first material separating disc and the second material separating disc dislocation motion direction.
According to a preferred embodiment, the drive mechanism is also adjusted for being arranged at the catalysis reduction silo roof end The second agitator in movable air door, first agitator and the Ash transport pipeline that is arranged at below the melter, its In, the analysis result and reference of the central control machine structure of the drive mechanism according to the first parameter set to the Non-oxygen pyrolytic storehouse The rotating speed of first agitator and rotation direction adjust turning for the opening degree of the movable air door and second agitator Dynamic model formula, and according to the gas pressure in the Non-oxygen pyrolytic storehouse and the catalysis reduction storehouse and/or one or more gases Concentration adjusts the dislocation motion stroke of first material separating disc and second material separating disc.Preferably, first parameter set It is dense for the pressure in the Non-oxygen pyrolytic storehouse, the anaerobic pyrolysis storehouse, the catalysis reduction storehouse, the melter, temperature, gas One or more in degree, the movable wind is adjusted by the rotating speed and rotation direction of analysis result and the first agitator of reference The opening degree of door and the rotation mode of second agitator, and according in the Non-oxygen pyrolytic storehouse and the catalysis reduction storehouse Gas pressure and/or the concentration of one or more gases adjust the dislocation of first material separating disc and second material separating disc Motion, can not only make to keep stable pressure in pyrolysis gasification furnace, moreover it is possible to blast caused by avoiding combustable gas concentration excessive and/ Or harmful gas concentration it is excessive caused by outer spray.
According to a preferred embodiment, the drive mechanism includes hot with the Non-oxygen pyrolytic storehouse, the anoxic respectively First to fourth drive motor and be respectively used to control institute that Xie Cang, the catalysis reduction storehouse, the melter mechanically connect First to fourth controller of first to fourth drive motor is stated, wherein, the central control machine structure is respectively used to described in control First to fourth control circuit of first to fourth controller is individually integrated into first to fourth controller, and described In driving condition and the pyrolysis gasification furnace of first to fourth control circuit based on first to fourth drive motor Pressure and/or temperature and according to regard to the Non-oxygen pyrolytic storehouse, the anaerobic pyrolysis storehouse, the catalysis reduction storehouse and/or described molten Optimal response parameter for room is melted to send control instruction to first to fourth motor controller.Wherein, the control Instruct the speed setting value and/or maximum current setting value for first to fourth drive motor.Preferably, with regard to the anaerobic Optimal response parameter can refer to for pyrolysis storehouse, the anaerobic pyrolysis storehouse, the catalysis reduction storehouse and/or the melter The state of the service life of each part or each part, such as rotating speed, power.The drive mechanism of the present invention is arranged on the heat Solve outside gasification furnace, and multiple parts share a drive mechanism, it can be avoided to be influenceed by high temperature, and be easily achieved multi-functional association Adjust consistent control.On the other hand, the present invention uses integral type and unique drive mechanism, easy to maintain, improves explosion environment Under security.
According to a preferred embodiment, the drive control mechanism is based on the Non-oxygen pyrolytic storehouse, the anaerobic pyrolysis Storehouse, the catalysis reduction storehouse, the gas pressure that pyrolysis obtains in the melter and/or one or more gases concentration and lead to The second drive motor for being mechanically connected with the anaerobic pyrolysis storehouse is crossed to coordinate to control first material separating disc and described second point Charging tray performs the stroke of dislocation motion to increase or reduce the aperture that the supplied gas of gas passage flows through, and/or by with it is described The 3rd drive motor that catalysis reduction storehouse mechanically connects coordinates to control the maximum allowable exhaust air rate of the movable air door and/or most Small permission exhaust air rate, and/or the first drive motor by being mechanically connected respectively with the Non-oxygen pyrolytic storehouse and the melter Coordinate to control the mixing direction of first agitator and second agitator, mixing speed with the 4th drive motor and stir Mix the time.
According to a preferred embodiment, first agitator more leans on according to it close to one end of first material separating disc Under mode be in tilted layout, and first agitator according to the first helical blade that left-handed spiral is set described first point Charging tray is rotated when being moved towards each other with second material separating disc with being in reverse to the direction of operative orientation.The first of the present invention stirs Device is mixed to promote the direction of the hazardous waste to rotate, is needing to clear up product on first material separating disc and second material separating disc During poly- semicoke compound, rotated, contributed to first material separating disc and described second by the direction for being in reverse to operative orientation Accumulation on material separating disc strikes off.
According to a preferred embodiment, first agitator is tilted towards along the direction close to first material separating disc The end for the first helical blade for descending and making to set according to left-handed spiral on first agitator close to first material separating disc, Second agitator sets and makes the second helical-blade on second agitator diagonally downward along the lime-ash export direction Piece is set according to the direction opposite with first helical blade, so that between the first agitator and second agitator Different operating modes is adapted to a variety of rotation modes.The first agitator and the second agitator of the present invention is arranged at the anaerobic Position relatively low in storehouse and in the Ash transport pipeline is pyrolyzed, not only conveying material can be crushed and mixed, its spiral shell Vane piece can also be sheared to the semicoke compound or lime-ash of generation, be advantageous to the continuous conveying of material, on the other hand, the present invention The stirring rod incline direction of second agitator and the second helical blade rotation mode are according to the mode opposite with the first agitator Set, be advantageous to rotating speed and rotation direction with reference to the first agitator come by being advantageous to adjust in the way of steady pressure in holding furnace The rotation mode of second agitator is saved, and first agitator and second agitator have a variety of rotation moulds Formula, be advantageous to adapt to different operating modes.For example, the lime-ash in reaction initial period, pyrolysis gasification furnace is less, described second stirs Less mixing speed can be had by mixing device.React the middle and later periods, the lime-ash in pyrolysis gasification furnace is more and lime-ash in easily entrainment it is not complete The carbonizing matter to burn entirely, now second agitator needs larger mixing speed, and needs positive direction stirring and inverse side To stirring alternately so as to be then exhausted from melter after carbonizing matter completely burned.
Based on hazardous waste harmless treatment device provided by the invention, another aspect of the present invention additionally provides a kind of danger Dangerous waste method for innocent treatment.Methods described comprises at least preprocessing process, pyrolytic gasification process and purification process, wherein, The preprocessing process is to be sorted after carrying out depositing dust and deodorization to the hazardous waste and convey the material selected respectively Into pyrolysis gasification furnace;The pyrolytic gasification process is in high temperature, anaerobic and subnormal ambient by the hazardous waste by pretreatment Under carry out being cracked to form the first mixed gas and semicoke compound, and by the semicoke compound under high temperature, anoxic and subnormal ambient One or many pyrolytic gasification reactions are carried out again to generate the second mixed gas and carbonizing matter, by first mixed gas and Second mixed gas carried out under reproducibility environment catalysis reduction to generate fuel gas, by the carbonizing matter high temperature, Melted under subnormal ambient to generate lime-ash;The purification process is to pass through the gas after fuel gas cooling, separation successively Cross dechlorination depickling purifying column purification after again by filtration tank filter out dust and tar using as fuel be delivered to the heating chamber as The pyrolysis gasification furnace heat supply.
The pyrolytic gasification process is completed in the pyrolysis gasification furnace with following structure:The pyrolytic gasification stove There are Non-oxygen pyrolytic storehouse, anaerobic pyrolysis storehouse, catalysis reduction storehouse and melter, wherein, it is provided with the Non-oxygen pyrolytic storehouse and is used to crush First agitator of the hazardous waste, it is provided with the Ash transport pipeline of the melter thereunder and is used to stir lime-ash Second agitator, the Non-oxygen pyrolytic storehouse, the anaerobic pyrolysis storehouse, the catalysis reduction storehouse and the melter are according to one And the extraneous mode being environmentally isolated is set, wherein, the Non-oxygen pyrolytic storehouse and the anaerobic pyrolysis storehouse by being bonded each other And the first material separating disc and the second material separating disc that can be relatively moved on edge in the axially direction of first agitator Separated from one another, resistant to elevated temperatures first material separating disc and second material separating disc are provided with the way of position corresponds to each other In the through hole that first position closes but opened wide in the second place, wherein, first material separating disc and second material separating disc are along institute The axle for stating the first agitator is looked up in the plate-like piece at least partly swelled, first material separating disc and second material separating disc It is in the arc bars of central elevation along its own longitudinal 2 observation so that first material separating disc is only local close to described first The helical blade end of agitator.
The hazardous waste of the present invention is granular material discharged without foul smell, flue gas, dust, waste water, PM2.5 in processing procedure, no Percolate is produced He bioxin, can effective curing heavy metal;After pyrolyzing hazardous wastes remaining breeze by after melt-combustion into For harmless lime-ash, available for making organic fertilizer or emergency burial.On the other hand, dangerous waste reduction rate of the invention reach 99% with On, combustible volume is reduced to 0.01 cube by 1 cube;And resource utilization rate reaches 99%, 1 ton of combustable organic is handled Thing, 400 cubic metres of fuel gas can be obtained.After the purified processing of the fuel gas, it can be fired as the auxiliary of pyrolysis gasification furnace Material recycles, and realizes self circulation of energy.
Brief description of the drawings
Fig. 1 is the module diagram of hazardous waste innocuity disposal system of the present invention;
Fig. 2 is the structural representation of pyrolysis gasification furnace of the present invention;
Fig. 3 is that the first material separating disc and the second material separating disc of the invention perform the structural representation after dislocation motion;
Fig. 4 is the cross-sectional view of combustion head of the present invention;
Fig. 5 is a preferred embodiment schematic diagram of the spray orifice position of combustion head of the present invention;
Fig. 6 is a preferred embodiment process chart of present invention processing glass fiber reinforced plastic wastes;With
Fig. 7 is a preferred embodiment process chart of present invention processing leather waste.
Reference numerals list
10:Pretreatment unit 20:Pyrolysis gasifying device 30:Purifier
40:Energy recycle device 101:Negative oxygen odor removal 102:Sorting unit
201:Charging aperture 202:Non-oxygen pyrolytic storehouse 203:Anaerobic pyrolysis storehouse
204:Catalysis reduction storehouse 205:Melter 206:Heating chamber
207:Combustion head 208:First agitator 209:Second agitator
210:First material separating disc 211:Second material separating disc 212:Movable air door
213:Slag notch 214:Delivery pipe 207a:Spray orifice
210a:First step 210b:Second step 301:Cooling tower
302:Gas-liquid separation equipment 303:Purifying column 304:Filtration tank
Embodiment
It is described in detail with reference to the accompanying drawings and examples.
The hazardous waste method for innocent treatment and device of the present invention is on pyrolytic technique basis, will be catalyzed skill A kind of new technology that art, gasification technology, reduction technique are combined with pyrolytic technique.Its principle is using organic in hazardous waste The thermal instability of thing, heat resolve is carried out to it under anaerobic and anoxia condition, organic matter is produced thermal cracking mixed to obtain Close gas and semicoke compound or carbonizing matter.Carbon dioxide, water vapour, organic compound solvent and tar in mixed gas etc., Secondary response is carried out by pyrolysis gasification furnace, is converted into fuel gas.Semicoke compound or carbonizing matter are harmless by being obtained after melting Lime-ash and high-temperature flue gas;Carbon dioxide and vapor in high-temperature flue gas generate carbon monoxide and hydrogen by catalytic reduction reaction The fuel gas such as gas recycle.
Fig. 1 shows the module diagram of hazardous waste innocuity disposal system of the present invention.As shown in figure 1, hazardous waste Harmless treatment device at least also fills 30 and energy recycle device 40 including pretreatment unit 10, pyrolysis gasifying device 20, purification. Preferably, pretreatment unit 10 comprises at least negative oxygen odor removal 101 and sorting unit 102, and the negative He of oxygen odor removal 101 Sorting unit 102 is used for hazardous waste depositing dust, deodorization and sorting.Preferably, pyrolysis gasifying device 20 is pyrolysis gasification furnace.It is excellent Selection of land, purifier 30 comprise at least cooling tower 301, gas-liquid separation equipment 302, purifying column 303 and filtration tank 304.Purification dress 30 are put by cooling tower 301 to isolating liquid oil and gas by gas-liquid separation equipment 302 again after fuel gas cooling, and Pass sequentially through the gas purification of purifying column 303 and filtration tank 304 to isolating.Preferably, energy recycle device 40 is heat exchange Device.Energy recovery after heat exchanger fully burns fuel gas in heating chamber 206 in caused flue gas.
The hazardous waste processing unit pretreatment unit 10 of the present invention, pyrolysis gasifying device 20, purification fill 30 and energy go back to Receiving apparatus 40 is arranged to integral system, so that whole equipment floor space is smaller, without huge exhaust gas processing device, Pyrolysis, gasification, reduction and purified treatment are realized in a system, so as to realize the harmless treatment of hazardous waste.
Embodiment 1
Fig. 2 shows the structural representation of pyrolysis gasification furnace of the present invention.As shown in Fig. 2 pyrolysis gasification furnace at least have into Material mouth 201, Non-oxygen pyrolytic storehouse 202, anaerobic pyrolysis storehouse 203, catalysis reduction storehouse 204, melter 205, heating chamber 206 and slag notch 213.The first agitator 208 for being used for crushing hazardous waste is provided with Non-oxygen pyrolytic storehouse 202.The ash of melter 205 thereunder The second agitator 209 for being used for stirring lime-ash is provided with slag conveyance conduit.Non-oxygen pyrolytic storehouse 202, anaerobic pyrolysis storehouse 203, catalysis Reduction storehouse 204 and melter 205 are set in the way of one and to extraneous be environmentally isolated.Non-oxygen pyrolytic storehouse 202 is set Above anaerobic pyrolysis storehouse 203 and by being bonded each other and can be along in the axially direction of the first agitator 208 The first material separating disc 210 and the second material separating disc 211 of relative movement are separated from one another.Catalysis reduction storehouse 204 is arranged at Non-oxygen pyrolytic The side in storehouse is simultaneously in communication by gas transmission pipeline.Melter 205 is arranged at the lower section in catalysis reduction storehouse 204 and by half Carbonizing matter conveyance conduit connects with anaerobic pyrolysis storehouse 203.Slag notch 213 is arranged at the lower section of melter 205.
According to a preferred embodiment, the top of pyrolysis gasification furnace one end is provided with feeding in continuous material sealing device, it is continuous on Material sealing device is connected with the charging aperture passage of the one end of Non-oxygen pyrolytic storehouse 202.The other end connection anoxic heat in Non-oxygen pyrolytic storehouse 202 Solve storehouse 203.Preferably, feeding in continuous material sealing device includes compression sealing drum, piston type pusher cylinder, charging aperture 201, charging aperture Gland.Wherein, the opening above compression sealing drum is charging aperture 201.It is remote that piston type pusher cylinder is located at compression sealing drum The one end in Non-oxygen pyrolytic storehouse 202, piston type pusher cylinder are provided with pushing piston, sealing-plug, sealing-plug are provided with compression sealing drum Sealing strip including being respectively provided above the compression sealing drum inwall and left and right sides.The compression sealing of the side of charging aperture 201 To being externally provided with charging aperture gland on cylinder.The effect of feeding in continuous material sealing device is to be pushed away hazardous waste by way of material compression Enter in integral type pyrolysis gasification furnace and block feeding-passage, with the outer gas circulation of stove in isolation stove, ensure integral type pyrolysis gasification Stove continuously work feeding when, the gas in stove is not leaked, and the air outside stove, which enters, not to be come, and ensures hazardous waste Non-oxygen pyrolytic.
According to a preferred embodiment, Non-oxygen pyrolytic storehouse 202 is horizontal cylinder or cuboid, and it is arranged at heating chamber 206 tops.The middle and lower part of anaerobic pyrolysis storehouse 203 is provided with heating tube.Anaerobic pyrolysis storehouse 203 is separated with heating chamber 206 by dividing plate.Anoxic The pyrolysis bottom transverse of storehouse 203 is provided with delivery pipe 214.It is heating chamber 206 on the outside of the one end of delivery pipe 214, the other end connects with melter 205 Connect.Melter 205 be arranged at catalysis reduction storehouse 204 lower section and with catalysis reduction storehouse 204 and anaerobic pyrolysis storehouse 203 by it is netted every Flitch is separated from one another.The catalysis reduction bottom of storehouse 204 is provided with combustion gas collecting bin, and bottom is provided with netted material baffle, and middle part, which is provided with, to be added Heat pipe, top are provided with movable air door 212.Non-oxygen pyrolytic storehouse 202, anaerobic pyrolysis storehouse 203 and melter 205 are respectively by pipeline with urging Change reduction storehouse 204 to connect.Caused high-temperature flue gas spurts into catalysis reduction storehouse 204 upwards in melter 205.Melter 205 Lime-ash caused by interior is delivered to slag notch 213 through conveyance conduit and the slag notch 213 by being inclined to set is delivered to hydrolock In ash slag box.The other end of melter 205 is connected with hydrolock ash slag box, and lime-ash caused by melter 205 enters hydrolock lime-ash Case.Melter 205 burns caused high-temperature flue gas and is supplied to anaerobic pyrolysis storehouse 203 by pipeline, as the heat of anaerobic pyrolysis storehouse 203 The part in energy source.In continuous slag tap, hydrolock ash slag box can not only prevent the outer air of stove from entering by grey slag outlet In pyrolysis gasification furnace, releasing pressure automatically when there is certain pressure can be also ensured in pyrolysis gasification furnace, ensures the operation of pyrolysis gasification furnace Safety.
As shown in figure 3, the first material separating disc 210 and the second material separating disc 211 are provided with the way of position corresponds to each other The through hole that first position closes but opened wide in the second place, wherein, the first material separating disc 210 and the second material separating disc 211 stir along first The axle for mixing device 208 looks up plate-like piece at least partly protuberance, the first material separating disc 210 and the second material separating disc 211 along its from Body longitudinal 2 observation is in the arc bars of central elevation.Preferably, the first material separating disc 210 and the side of the second material separating disc 211 are distributed in Through-hole aperture on edge is more than the through-hole aperture being distributed at the first material separating disc 210 and the arc of the second material separating disc 211 protuberance center, And the first material separating disc 210 and the second material separating disc 211 are close to the catalysis reduction side of storehouse 204 to away from the catalysis reduction side of storehouse 204 Through-hole aperture be in first reduces the trend that increases afterwards, and through hole arrangement density is in the trend gradually increased.
According to a preferred embodiment, the first material separating disc 210 and the second material separating disc 211 are held under the driving of drive mechanism The first of dislocation motion of the row along hazardous waste conveying direction and the side formation variable-width in remote catalysis reduction storehouse 204 Second step 210b is also formed between the through hole of step 210a, the first material separating disc 210 and the second material separating disc 211.The Step-edge Junction of formation Structure is as shown in Figure 3.Preferably, the first material separating disc 210 and the second material separating disc 211 perform the second step formed after dislocation motion 210b has multiple.Extruding, scraping and/or the shear action that pyrolysis gasification furnace passes through the helical blade close to the first material separating disc 210 And make caused semicoke compound in Non-oxygen pyrolytic storehouse 202 from the first material separating disc 210 and the second material separating disc 211 central area it is logical Fallen into hole in anaerobic pyrolysis storehouse 203, meanwhile, second mixed gas is from the first material separating disc 210 caused by anaerobic pyrolysis storehouse 203 It is upwardly into the gap of 211 longitudinal both sides of the second material separating disc in Non-oxygen pyrolytic storehouse 202.First material separating disc 210 and the second sub-material Disk 211 performs dislocation motion and forms the ledge structure of variable-width, can not only adjust aperture and the quantity of through hole, more important Be that can strengthen the helical blade of the first agitator 208 in turn to accumulating in the first material separating disc 210 and the second material separating disc The scraping effect of semicoke compound on 211.
According to a preferred embodiment, Non-oxygen pyrolytic storehouse 202, anaerobic pyrolysis storehouse 203, melter 205 and/or catalysis are also Former storehouse 204 is that vertical and/or horizontal columnar structured or elongate configuration and cylindrical housing are spelled by multiple arcs heat pipe Connect and form.The radian of arc heat pipe is 60~90 ° and the internal diameter of arc heat pipe is Non-oxygen pyrolytic storehouse 202, anaerobic pyrolysis storehouse 203rd, melter 205 and/or catalysis reduce the 0.1%~1% of the internal diameter of storehouse 204.It is spliced by multiple arcs heat pipe, favorably In the heated of Non-oxygen pyrolytic storehouse 202, anaerobic pyrolysis storehouse 203, melter 205 and/or catalysis reduction storehouse 204.
According to a preferred embodiment, heating chamber 206 is vertical shape.The bottom of heating chamber 206 is provided with fire grate and air duct, Two side is provided with secondary air feed nozzle, wherein a side wall is additionally provided with maintenance peep hole.Heating chamber 206 to Non-oxygen pyrolytic storehouse 202, lack Oxygen pyrolysis storehouse 203, catalysis reduction storehouse 204 and melter 205 provide heat energy.The fuel that heating chamber 206 uses has for hazardous waste Pyrolysis gas caused by machine thing, during first heat temperature raising, the fuel that heating chamber 206 uses is useless for diesel oil or coal, coke, agricultural Gurry stalk, is placed on fire grate.
According to a preferred embodiment, air duct is the air of the offer of heating chamber 206 by being obliquely installed in 45~75 ° Fire grate it is scattered after enter heating chamber 206.Heating chamber 206 is also by being arranged at the air feed nozzle of the both sides of combustion head 207 as heating Room 206 provides air.At least one detection mouth is also equipped with above air feed nozzle, detection mouth is used for the burning for monitoring heating chamber 206 State.As shown in Figure 4 and Figure 5, the semicircular in shape structure of combustion head 207 made of high-temperature refractory, and semicircular structure Combustion head 207 cambered surface on by warp, weft direction arranged for interval have multiple a diameter of 15~30mm spray orifice 207a.In order to keep away The fuel gas exempted from heating chamber is insufficient, and the present invention in heating chamber by setting up air feed nozzle, it can be ensured that fuel The abundant burning of gas.On the other hand, the present invention can monitor the fired state in heating chamber by the detection mouth of setting, avoid temperature Spend low or too high.
The pyrolysis gasification furnace of the present invention realizes multi-function device integration, improves heat utilization rate and operating efficiency;The heat Solution gasification furnace concentrates on Non-oxygen pyrolytic, anaerobic decay, melting incinerating, catalytic reduction reaction etc. in a processing unit, realizes Heat energy is shared in device and the realization device energy recycles self, improves heat utilization rate;Pyrolysis treatment device can be accomplished to connect It is continuous to feed and continuously slag tap, Automated condtrol is realized, equipment stable operation is ensured and improves operating efficiency;Reduce auxiliary fuel Use, reduce processing cost, realize comprehensive resource benefit.
Embodiment 2
The present embodiment describes hazardous waste method for innocent treatment provided by the invention in detail on the basis of embodiment 1. The hazardous waste method for innocent treatment of the present invention comprises at least preprocessing process, pyrolytic gasification process and purification process.Wherein, Preprocessing process is to be sorted after carrying out depositing dust and deodorization to hazardous waste and the material selected is delivered into pyrolysis gas respectively Change in stove.Pyrolytic gasification process is that the hazardous waste by pretreatment is carried out into cracking life under high temperature, anaerobic and subnormal ambient Into the first mixed gas and semicoke compound, and semicoke compound carried out under high temperature, anoxic and subnormal ambient again once or more Secondary pyrolytic gasification reaction is to generate the second mixed gas and carbonizing matter, by the first mixed gas and the second mixed gas in reproducibility Catalysis reduction is carried out under environment to generate fuel gas.Carbonizing matter generates harmless lime-ash by burning.Purification process is will be flammable Gas filters out dust and tar to make by filtration tank again after the purification of dechlorination depickling purifying column successively again after being cooled and separated It is pyrolysis gasification furnace heat supply to be delivered to heating chamber for fuel.
According to a preferred embodiment, the preprocessing process of hazardous waste comprises at least following steps:
Depositing dust and deodorization are carried out to hazardous waste using negative oxygen deodoration system.
Hazardous waste is sorted by separation system and the oversize selected is delivered in pyrolysis gasification furnace.Its In, assorting room comprises at least, selection by winnowing broken to hazardous waste, magnetic separation and rotational flow sorting.
According to a preferred embodiment, the first mixed gas comprise at least carbon dioxide, water vapour, carbon monoxide and, Methane, organic compound solvent and tar.Second mixed gas comprises at least carbon dioxide and water vapour, and biogas comprises at least first Alkane, carbon dioxide and water vapour.First mixed gas, the second mixed gas and biogas reduce the fuel gas of generation extremely through catalysis Include carbon monoxide, hydrogen and methane less.
According to a preferred embodiment, the pyrolytic gasification process of hazardous waste comprises at least following steps:
Hazardous waste is delivered in the Non-oxygen pyrolytic storehouse 202 of pyrolysis gasification furnace.
By high-temperature gas caused by the full combustion of fuel in the heating chamber 206 of pyrolysis gasification furnace to Non-oxygen pyrolytic storehouse Material in 202 is heated so that the organic molecule chain of hazardous waste generates first after being cracked under high temperature, oxygen-free environment Mixed gas and semicoke compound.
Semicoke compound is delivered in the Non-oxygen pyrolytic storehouse 202 or anaerobic pyrolysis storehouse 203 of pyrolysis reactor furnace and carried out second Pyrolytic gasification is to produce the second mixed gas and carbonizing matter.
The semicoke compound or carbonizing matter do not decomposed completely in Non-oxygen pyrolytic storehouse 202 or anaerobic pyrolysis storehouse 203 are delivered to nothing Oxygen, which is pyrolyzed in storehouse 202 or anaerobic pyrolysis storehouse 203, carries out third time pyrolytic gasification to produce the 3rd mixed gas and carbonizing matter, so Circulation, until semicoke compound is completely decomposed into gas and carbonizing matter.
According to a preferred embodiment, heating chamber 206 is using fuel gas gas as fuel, and fuel gas fully fires High-temperature gas caused by burning heat energy is transmitted by way of heat transfer or heat radiation to Non-oxygen pyrolytic storehouse 202 it is material bed simultaneously Material bed temperature is increased to 500~1000 DEG C according to hazardous waste species, and make material bed hazardous waste in the temperature 1~1.5h of lower reaction.
According to a preferred embodiment, the purification process of fuel gas comprises at least following steps:
Fuel gas is cooled down by cooling tower.
Fuel gas after cooling is isolated into liquid oil and gas by gas-liquid separation equipment.Wherein, the liquid isolated Body oil recycles after being filtered by filter,
The gas isolated by dechlorination depickling purifying column purification after again by filtration tank filter out dust and tar using as It is pyrolysis gasification furnace heat supply that fuel, which is delivered to heating chamber 206,.
The present invention sets dechlorination purification and tail gas quenching heat sink, from source to prevent later stage bioxin from synthesizing again Cut off the condition that bioxin is formed.
According to a preferred embodiment, this method also includes energy recovery process, and energy recovery process comprises at least such as Lower step:Fuel gas caused flue gas after the heating chamber 206 of pyrolysis gasification furnace is fully burnt reclaims heat by heat exchanger Can, and reclaim after the flue gas after heat energy sequentially enters cooling tower and filtration tank progress purified treatment again and discharged again.It is flammable Flue-gas temperature caused by gas is up to 800~1000 DEG C, after reclaiming heat energy by heat exchanger, available for for factory's heat supply or hair Electricity.
Compared with burning, its caused carbon dioxide greenhouse gas can subtract the hazardous waste method for innocent treatment of the present invention Few 70%, electric energy 60% can be saved, auxiliary fuel 80% is saved, using water wisely 60%, saves operating cost 50~70%.Favorably In to atmosphere pollution, PM2.5 control, particularly on mitigating, haze produces and influence has great meaning, and the present invention The hazardous waste method for innocent treatment and device of offer are applied to《National Hazard waste register 2016 editions》In hazardous waste Processing.
The concrete technology route of the hazardous waste method for innocent treatment of the present invention is as described below:
S1:It will be delivered to pyrolysis gasification furnace by magnetic separation, broken, dedusting hazardous waste and receive in bucket, pass through extruding Mode is entered in Non-oxygen pyrolytic storehouse 202, blocking feeding-passage, is circulated in obstruction stove with the outer gas of stove, is ensured pyrolysis gasification furnace During continuous work feeding, the gas in stove does not leak.
S2:Combustable organic thing in hazardous waste enters in Non-oxygen pyrolytic storehouse 202 under 800 DEG C of high temperature above, oxygen free conditions Row drying and dehydrating and thermal decomposition.The moisture on hazardous waste surface, carbon monoxide, carbon dioxide, hydrogen, methane etc. separate out;Now endanger Dangerous waste is converted into carbonization at low temperature shape.
S3:Semicoke compound enters anaerobic pyrolysis storehouse 203 and is further pyrolyzed, and decomposites methane, hydrogen, carbon monoxide etc., Meanwhile hazardous waste is converted into coking shape.
S4:Coking shape hazardous waste burns into melter 205, produces high-temperature flue gas and lime-ash;Lime-ash passes through slag-drip opening 213 discharge pyrolysis gasification furnaces, comprehensive utilization or landfill.
S5:Hazardous waste caused various gases and high temperature cigarette caused by being burned in melter 205 in pyrolysis gasification furnace Gas enters catalysis reduction storehouse 204 and carries out catalysis and be reduced to fuel gas.Vapor is reduced to hydrogen, carbon dioxide reduction herein For carbon monoxide.
S6:The fuel gas of conversion discharges out of the furnace in catalysis reduction storehouse 204, enters in gas purifying tower and is purified Processing.Sour gas in combustion gas neutralizes with alkaline matter, and the impurity in combustion gas is cleaned processing.
S7:A fuel gas part after purified returns to the heating chamber 206 of pyrolysis gasification furnace, is follow-up by burning Pyrolyzing hazardous wastes provide heat energy.Another part is transported in gas storage tank, and fuel gas generation is conveyed to by fuel gas transmission machine Unit is generated electricity.
S8:Fuel gas caused flue gas after the burning of pyrolytic gasification furnace heating chamber, directly enters after discharging pyrolysis gasification furnace Enter to underwater aeration chilling tower rapid cooling within 200 DEG C, afterwards again by being discharged into air after filtering.
According to a preferred embodiment, pyrolysis gasification furnace operating temperature of the present invention heats 900~980 DEG C of room temperature, 850~930 DEG C of 202 operating temperature of Non-oxygen pyrolytic storehouse, 800~880 DEG C of 203 operating temperature of anaerobic pyrolysis storehouse.Heating chamber 206 produces High temperature be first provided to Non-oxygen pyrolytic storehouse 202, be available to anaerobic pyrolysis storehouse 203 afterwards.According to thermokinetic theory, Under 900 DEG C of hot conditions, hazardous waste is per minute to improve 10 DEG C, needs 1.5 hours when reaching 900 DEG C of high temperature.Table 1 below lists Temperature when different type hazardous waste starts pyrolysis and it is maximum weightless when temperature range.
Temperature when the different type hazardous waste of table 1 starts pyrolysis and it is maximum weightless when temperature range table
As can be known from the above table, hazardous waste completes needs 1~1.5 hour from Non-oxygen pyrolytic storehouse 202 to pyrolysis is entered, now greatly 80% volatile component is there are about easily to be precipitated.
The hazardous waste method for innocent treatment of the present invention organically combines anaerobic destructive distillation, anaerobic decay and melting incinerating, It is effective to solve anaerobic destructive distillation external heat power consumption height, it is impossible to which that with slagging tap, disposal ability is small for continuous feed, and breeze needs after-treatment The defects of and anaerobic decay caused by fuel gases calorific value it is low, it is impossible to use and burn as single-fuel produce secondary pollution, tail The defects of gas disposal equipment is complicated, and processing cost is high.
Controlled using the pollutant concentration limitation of hazardous waste method for innocent treatment and the device discharge of the present invention Within standard, shown in table 2 specific as follows.
The discharge of major pollutant concentration of table 2 limits and control standard
On the other hand, the combustible gas components of the present invention are analyzed using spectra methods, as a result such as table 3 below institute Show.
The combustible gas components of table 3 are analyzed
Ingredient names Hydrogen Propane Propylene Iso-butane Normal butane N-butene Carbon dioxide
Analyze data (V/V) 22.90% 0.17% 0.28% 0.01% 0.01% 0.03% 4.73%
Ingredient names Ethene Ethane Oxygen Nitrogen Methane Carbon monoxide ——
Analyze data (V/V) 1.33% 1.02% 6.98% 40.35% 10.25% 11.94% ——
The pyrolytic gasification technique and burning process that hazardous waste method for innocent treatment provided by the invention is used are completely not Together.Burning is heat release and oxidizing process, needs enough oxygen during burning, is burnt under aerobic state;The main production burned Thing is dust, carbon dioxide and waste water;The harmful components such as sulphur, heavy metal in waste are mixed among dust, containing big in waste gas Liang dioxin pollutants, it is required to carry out follow-up strict processing;Incinerator and vent gas treatment equipment complex process and volume It is huge, it is difficult to realize mobile and miniaturization.Pyrolysis is one and absorbs heat energy and separate out organic matter surface mass process, is in nothing It is that flammable low molecular compound is (such as gaseous to have hydrogen, first that destructive distillation and decomposition, primary product are carried out under oxygen or anoxia condition Alkane, carbon monoxide, liquid have methanol, the third Chiung, acetic acid, acetaldehyde, tar, solvent naphtha etc., mainly coke or the carbon black of solid-state) Etc. the storage characteristics energy;Waste gas is few caused by pyrolysis, and the waste gas correspondingly discharged is also few;Sulphur, heavy metal in waste etc. are harmful into Divide and be fixed in carbon black, inert state, it is not necessary to handled and disposed again;The content of Hou bioxin is pyrolyzed less than country With the discharge standard of European Union, bioxin is not produced even.
Fig. 6 shows a preferred embodiment process chart of present invention processing glass fiber reinforced plastic wastes.As shown in fig. 6, Its technological process comprises at least following steps:
S101:Waste material pre-processes.Detailed process is
Glass fiber reinforced plastic wastes are discharged into material storage container.
It is put into dedicated crusher and is crushed after waste material is picked up by grab claw, while opens the dedusting on disintegrating machine Device, the waste material after crushing are delivered into material storage container by conveyer.
Waste material is sent into gas-tight silo by grab claw again.
Waste material in gas-tight silo is entered by pusher in the Non-oxygen pyrolytic storehouse 202 of pyrolysis gasification furnace, with the first agitator 208 are uniformly distributed waste material.
S102:Hot resolution of waste material gasification process.Detailed process is
Heating chamber 206 is begun to warm up, and heat energy is transported into Non-oxygen pyrolytic storehouse 202 by heat exchange pattern.
Waste material in Non-oxygen pyrolytic storehouse 202 is cracked under high temperature, oxygen free condition, and the organic molecule chain in waste material is opened Begin to be broken and decompose, its surface moisture, carbon dioxide, carbon monoxide, methane separate out, and resin is converted into solid coke, and and glass Inorganic matter glass fiber in glass steel waste material is bonded together.
Solid coke and glass fiber are sent into by 203 further pyrolytic gasification of anaerobic pyrolysis storehouse by conveyer together, produced The fuel gas such as carbon monoxide, hydrogen and glass fiber waste residue.
Caused gas is delivered to catalysis reduction storehouse 204 and be catalyzed also in Non-oxygen pyrolytic storehouse 202 and anaerobic pyrolysis storehouse 203 Original, generate fuel gas.
Glass fiber waste residue is discharged out of the furnace by dreg removing system, is collected as refractory material or insulation material additive synthesis profit With.
S103:Purified treatment.Detailed process is
Organic matter and the resin caused mixed combustible gas body discharge pyrolysis after cracking and gasification in glass fiber reinforced plastic wastes Gasification furnace, Oil-gas Separation is carried out into Oil-gas Separation tower.
The liquid oil isolated enters recovery system and carries out filtration treatment.
Mixed combustible gas body enters extracting tower depickling, enters back into the further purified treatment of cleaned filter tower to remove fuel gas Impurity in body.
Fuel gas after purified, which is fed in the heating chamber 206 of pyrolysis gasification furnace, to burn, and is subsequent treatment waste material Heat energy is provided.
Fuel gas caused flue gas after the burning of heating chamber 206 discharges out of the furnace, and enters heat exchanger, reclaims hot water, Used for plant area.
Flue gas after recovery heat energy is re-introduced into chilling tower and cooled down, then after carrying out filtration, purification processing to filtration tank Air is discharged into through aiutage.
Fig. 7 shows a preferred embodiment process chart of present invention processing leather waste.As shown in fig. 7, its Technological process comprises at least following steps:
S101:Waste material pre-processes.Detailed process is
Grab bucket picks up leather waste from storage pool, pours into the reception bucket in Non-oxygen pyrolytic storehouse 202.
Pyrolysis gasification furnace is entered by way of extruding, blocking feeding-passage, obstruction stove is interior and the outer gas of stove circulates, and protects Barrier pyrolysis gasification furnace continuously work feeding when, the gas in stove does not leak.
S102:Hot resolution of waste material gasification process.Detailed process is
The heating chamber 206 of pyrolysis gasification furnace is begun to warm up, and fully burning produces high-temperature gas to fuel in heating chamber 206, High temperature sent to by way of heat radiation material bed in Non-oxygen pyrolytic storehouse 202.
Material is dried dehydration and decomposed in Non-oxygen pyrolytic storehouse 202 under 800~900 DEG C of high temperature, oxygen free conditions, produce The first flammable mixed gas and carbonizing matter (charcoal).
Carbonizing matter (charcoal) enters anaerobic pyrolysis storehouse 203 under the effect of the first agitator 208 and further decomposes generation combustible gas Body.
The carbonizing matter (charcoal) for not having to decompose completely in anaerobic pyrolysis storehouse 203 is again introduced into anaerobic heat in the presence of conveyer Gasification decomposition is carried out again in solution storehouse 202 or anoxic gasification storehouse 203, produces the second mixed gas and inorganic lime-ash.
Caused gas is delivered to catalysis reduction storehouse 204 and be catalyzed also in Non-oxygen pyrolytic storehouse 202 and anaerobic pyrolysis storehouse 203 Original, generate fuel gas.
Inorganic lime-ash burning heel row cinder notch 213 in melter 205 discharges pyrolysis gasification furnace integrated treatment.
S103:Purified treatment.Detailed process is
Mixed combustible gas body is discharged out of the furnace by gas transportation machine caused by each stage in pyrolysis gasification furnace, enters gas-liquid Knockout tower.
The liquid isolated collects (can make raw material).
The gas isolated, which enters, carries out purified treatment in purifying column.
A fuel gas part after purified treatment returns to pyrolysis gasification furnace internal combustion as follow-up pyrolysis as clean energy resource Handle waste and heat energy is provided;Another part fuel gas is delivered directly to hot-water boiler or generating set uses.
Fuel gas caused flue gas after heating chamber burning discharges out of the furnace, and enters heat exchanger, hot water is reclaimed, for factory Area uses.
Flue gas after recovery heat energy is re-introduced into chilling tower and cooled down, then after carrying out filtration, purification processing to filtration tank Air is discharged into through aiutage.
It should be noted that above-mentioned specific embodiment is exemplary, those skilled in the art can disclose in the present invention Various solutions are found out under the inspiration of content, and these solutions also belong to disclosure of the invention scope and fall into this hair Within bright protection domain.It will be understood by those skilled in the art that description of the invention and its accompanying drawing are illustrative and are not Form limitations on claims.Protection scope of the present invention is limited by claim and its equivalent.

Claims (10)

1. a kind of hazardous waste harmless treatment device, described device comprises at least pyrolysis gasifying device (20), the pyrolysis gas It is at least to have Non-oxygen pyrolytic storehouse (202), anaerobic pyrolysis storehouse (203), catalysis reduction storehouse (204) and melter that (20) are put in makeup (205) pyrolysis gasification furnace, wherein, it is provided with the Non-oxygen pyrolytic storehouse (202) and is stirred for crushing the first of the hazardous waste Device (208) is mixed,
Characterized in that,
The Non-oxygen pyrolytic storehouse (202), the anaerobic pyrolysis storehouse (203), catalysis reduction storehouse (204) and the melter (205) it is to be set in the way of one and to extraneous be environmentally isolated, wherein,
The Non-oxygen pyrolytic storehouse (202) and the anaerobic pyrolysis storehouse (203) by being bonded and can be along perpendicular to described each other The first material separating disc (210) and the second material separating disc (211) relatively moved in the axially direction of first agitator (208) divides each other Separate,
In the way of resistant to elevated temperatures first material separating disc (210) and second material separating disc (211) correspond to each other by position Provided with the through hole for closing but being opened wide in the second place in first position, wherein, first material separating disc (210) and described second point Axle of the charging tray (211) along first agitator (208) looks up the plate-like piece at least partly protuberance, first sub-material Disk (210) and second material separating disc (211) are along the arc bars that its own longitudinal 2 observation is in central elevation so that described the One material separating disc (210) is only local close to the helical blade end of first agitator (208).
2. hazardous waste harmless treatment device as claimed in claim 1, it is characterised in that be distributed in first material separating disc (210) through-hole aperture and on second material separating disc (211) edge, which is more than, is distributed in first material separating disc (210) and described Through-hole aperture at second material separating disc (211) arc protuberance center, and
First material separating disc (210) and second material separating disc (211) reduce storehouse (204) side to remote close to the catalysis The through-hole aperture of described catalysis reduction storehouse (204) side is in the trend for first reducing and increasing afterwards, and through hole arrangement density is in gradually to increase Big trend.
3. hazardous waste harmless treatment device as claimed in claim 1 or 2, it is characterised in that first material separating disc (210) and second material separating disc (211) is driven and adjusted by centrally located controlling organization by same drive mechanism Section, and the drive mechanism can drive first material separating disc (210) and described second point at least two directions Charging tray (211) performs dislocation motion, with adjust the aperture of through hole and compensation work long hours after with first material separating disc (210) The thickness change of the furnace wall abutted with second material separating disc (211).
4. hazardous waste harmless treatment device as claimed in claim 3, it is characterised in that first material separating disc (210) First material separating disc (210) and second material separating disc (211) are based on described with the edge of second material separating disc (211) The dislocation motion that is performed under the driving of drive mechanism and formed in the helical blade end close to first agitator (208) The first step (210a) of variable-width, and working time of the central control machine structure also based on the pyrolysis gasification furnace and/or The thickness of Non-oxygen pyrolytic storehouse (202) furnace wall is wrong to control first material separating disc (210) and second material separating disc (211) Position movement travel.
5. hazardous waste harmless treatment device as claimed in claim 3, it is characterised in that first material separating disc (210) The dislocation along the hazardous waste conveying direction is performed under the driving of the drive mechanism with second material separating disc (211) Move and form the ledge structure of at least two variable-widths in the side that storehouse (204) are reduced away from the catalysis, and
The pyrolysis gasification furnace drives semicoke compound to shift to first material separating disc (210) to make the anaerobic by helical blade Caused semicoke compound is pyrolyzed in storehouse (202) from center on first material separating disc (210) and second material separating disc (211) Fallen into the through hole in domain in the anaerobic pyrolysis storehouse (203), and cause the second mixing caused by the anaerobic pyrolysis storehouse (203) Gas is from the adjustable through hole in aperture of first material separating disc (210) and second material separating disc (211) longitudinal both sides to enterprising Enter in the Non-oxygen pyrolytic storehouse (202).
6. hazardous waste harmless treatment device as claimed in claim 3, it is characterised in that the drive mechanism is also used for adjusting Section is arranged at the movable air door (212) for being catalyzed reduction storehouse (204) top, first agitator (208) and is arranged at institute The second agitator (209) in the Ash transport pipeline below melter (205) is stated, wherein,
The central control machine structure of the drive mechanism is according to the analysis result of the first parameter set to the Non-oxygen pyrolytic storehouse (202) And rotating speed with reference to first agitator (208) and rotation direction adjust the opening degree of the movable air door (212) and institute The rotation mode of the second agitator (209) is stated, and according in the Non-oxygen pyrolytic storehouse (202) and catalysis reduction storehouse (204) Gas pressure and/or the concentration of one or more gases adjust first material separating disc (210) and second material separating disc (211) dislocation motion stroke.
7. hazardous waste harmless treatment device as claimed in claim 4, it is characterised in that the drive mechanism includes difference With the Non-oxygen pyrolytic storehouse (202), the anaerobic pyrolysis storehouse (203), catalysis reduction storehouse (204), the melter (205) First to fourth drive motor and being respectively used to mechanically connected controls the first of first to fourth drive motor to the Four controllers, wherein,
The central control machine structure is respectively used to control first to fourth control circuit of first to fourth controller to distinguish It is integrated into first to fourth controller, and
Driving condition and the pyrolysis gas of first to fourth control circuit based on first to fourth drive motor Change the pressure and/or temperature and according to regard to the Non-oxygen pyrolytic storehouse (202), the anaerobic pyrolysis storehouse (203), the catalysis in stove Optimal response parameter is come to first to fourth motor controller for reduction storehouse (204) and/or the melter (205) Control instruction is sent, wherein,
The control instruction is the speed setting value and/or maximum current setting value of first to fourth drive motor.
8. hazardous waste harmless treatment device as claimed in claim 6, it is characterised in that the center control of the drive mechanism Mechanism processed is based on the Non-oxygen pyrolytic storehouse (202), the anaerobic pyrolysis storehouse (203), catalysis reduction storehouse (204), described molten Melt the concentration of pyrolysis obtains in room (205) gas pressure and/or one or more gases and by with the anaerobic pyrolysis storehouse (203) the second drive motor mechanically connected coordinates to control first material separating disc (210) and second material separating disc (211) The stroke of dislocation motion is performed to increase or reduce the aperture that the supplied gas of gas passage flows through, and/or
Coordinate to control the movable air door by the 3rd drive motor mechanically connected with catalysis reduction storehouse (204) (212) maximum allowable exhaust air rate and/or minimum allowable exhaust air rate, and/or
Pass through the first drive motor mechanically connected respectively with the Non-oxygen pyrolytic storehouse (202) and the melter (205) and Four drive motors are fast to coordinate to control the mixing direction of first agitator (208) and second agitator (209), stirring Degree and mixing time.
9. hazardous waste harmless treatment device as claimed in claim 3, it is characterised in that first agitator (208) By its close to one end of first material separating disc (210) more on the lower in the way of be in tilted layout, and first agitator (208) the first helical blade set according to left-handed spiral is in first material separating disc (210) and second material separating disc (211) Rotated when moving towards each other with being in reverse to the direction of operative orientation.
10. a kind of hazardous waste method for innocent treatment, it is characterised in that methods described comprises at least preprocessing process, pyrolysis Gasification and purification process, wherein,
The preprocessing process is to be sorted after carrying out depositing dust and deodorization to the hazardous waste and distinguish the material selected It is delivered in pyrolysis gasification furnace;
The pyrolytic gasification process is that the hazardous waste by pretreatment is carried out into cracking life under high temperature, anaerobic and subnormal ambient Carried out once again under high temperature, anoxic and subnormal ambient into the first mixed gas and semicoke compound, and by the semicoke compound Or repeatedly pyrolytic gasification reaction is to generate the second mixed gas and carbonizing matter, by first mixed gas and second mixing Gas carries out catalysis reduction to generate fuel gas under reproducibility environment, and the carbonizing matter is melted under high temperature, subnormal ambient Melt to generate lime-ash;
The purification process be by the fuel gas cooling, separation after gas successively by dechlorination depickling purifying column purification after Dust and tar are filtered out to be delivered to heating chamber (206) as fuel as the pyrolysis gasification furnace heat supply by filtration tank again, its In,
The pyrolytic gasification process is completed in the pyrolysis gasification furnace with following structure:The pyrolysis gasification furnace at least has There is the pyrolysis gasification furnace of Non-oxygen pyrolytic storehouse (202), anaerobic pyrolysis storehouse (203), catalysis reduction storehouse (204) and melter (205), its In, the first agitator (208) for being used for crushing the hazardous waste is provided with the Non-oxygen pyrolytic storehouse (202),
The Non-oxygen pyrolytic storehouse (202), the anaerobic pyrolysis storehouse (203), catalysis reduction storehouse (204) and the melter (205) it is to be set in the way of one and to extraneous be environmentally isolated, wherein,
The Non-oxygen pyrolytic storehouse (202) and the anaerobic pyrolysis storehouse (203) by being bonded and can be along perpendicular to described each other The first material separating disc (210) and the second material separating disc (211) relatively moved in the axially direction of first agitator (208) divides each other Separate,
In the way of resistant to elevated temperatures first material separating disc (210) and second material separating disc (211) correspond to each other by position Provided with the through hole for closing but being opened wide in the second place in first position, wherein, first material separating disc (210) and described second point Axle of the charging tray (211) along first agitator (208) looks up the plate-like piece at least partly protuberance, first sub-material Disk (210) and second material separating disc (211) are along the arc bars that its own longitudinal 2 observation is in central elevation so that described the One material separating disc (210) is only local close to the helical blade end of first agitator (208).
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