CN106482114A - A kind of heat accumulating type blockage resisting electronic waste pyrolysis installation and method - Google Patents

A kind of heat accumulating type blockage resisting electronic waste pyrolysis installation and method Download PDF

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Publication number
CN106482114A
CN106482114A CN201611137003.5A CN201611137003A CN106482114A CN 106482114 A CN106482114 A CN 106482114A CN 201611137003 A CN201611137003 A CN 201611137003A CN 106482114 A CN106482114 A CN 106482114A
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CN
China
Prior art keywords
flue gas
heat
slag charge
electronic waste
shaped spiral
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CN201611137003.5A
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Chinese (zh)
Inventor
王宁
郭科宏
陈珊
杨玉地
田中君
吴道洪
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Beijing Shenwu Environmental and Energy Technology Co Ltd
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Beijing Shenwu Environmental and Energy Technology Co Ltd
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Priority to CN201611137003.5A priority Critical patent/CN106482114A/en
Publication of CN106482114A publication Critical patent/CN106482114A/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/02Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment
    • F23G5/027Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment pyrolising or gasifying stage
    • F23G5/0273Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment pyrolising or gasifying stage using indirect heating
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10BDESTRUCTIVE DISTILLATION OF CARBONACEOUS 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
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10BDESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
    • C10B57/00Other carbonising or coking processes; Features of destructive distillation processes in general
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/08Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating
    • F23G5/12Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating using gaseous or liquid fuel
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/44Details; Accessories
    • F23G5/442Waste feed arrangements
    • F23G5/444Waste feed arrangements for solid waste
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/44Details; Accessories
    • F23G5/46Recuperation of heat
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2201/00Pretreatment
    • F23G2201/30Pyrolysing
    • F23G2201/302Treating pyrosolids
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2204/00Supplementary heating arrangements
    • F23G2204/10Supplementary heating arrangements using auxiliary fuel
    • F23G2204/103Supplementary heating arrangements using auxiliary fuel gaseous or liquid fuel
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2205/00Waste feed arrangements
    • F23G2205/12Waste feed arrangements using conveyors
    • F23G2205/121Screw conveyor

Abstract

The present invention relates to refuse pyrolysis technical field, especially relate to a kind of heat accumulating type blockage resisting electronic waste pyrolysis installation and method, this device includes:Electronic waste pyrolysis reactor and regenerative gas heating system, wherein, described electronic waste pyrolysis reactor includes:Material pyrolization modules and reactor shell, described material pyrolization modules include shaped spiral housing and propulsion spiral;The right lower quadrant of the exposed described shaped spiral housing in described reactor enclosure external body is provided with slag charge outlet and flue gas heat tracing pipe, material inlet and oil gas vent, and described flue gas heat tracing pipe is arranged on the periphery of described slag charge outlet, prevents described slag charge outlet blockage;Described regenerative gas heating system includes:Heat accumulating burner and exhaust gases passes, described heat accumulating burner includes air line, burning line, flue gas pipeline, reversal valve, regenerator and combustor.This device has the advantages that to be pyrolyzed efficiency high, continuous feeding and discharging, prevents discharge blockage and energy-saving effect notable.

Description

A kind of heat accumulating type blockage resisting electronic waste pyrolysis installation and method
Technical field
The present invention relates to refuse pyrolysis technical field, especially relate to a kind of heat accumulating type blockage resisting electronic waste pyrolysis installation And method.
Background technology
In recent years, various electronic products are maked rapid progress, and new and old replacement is increasingly faster, and the electronic waste producing therefrom is just Increased with exponential.The heavy metal element that it contains can be serious pollution environment, if electronic waste is dealt with improperly will produce The toxic and harmfuls such as raw dioxin cause secondary pollution.Currently used for electronic circuit board processing method mainly by mechanical-physical Method, metallurgical extraction method, biological treatment and pyrolysismethod etc., wherein mechanical approach, metallurgical extraction method, biological treatment etc. are main The recovery of metal in circuit board to be laid particular emphasis on, using pyrolysismethod can not only metal in recovery train plate and also enable line The resource of the Non-metallic components such as resin, glass fibre in the plate of road;Adopting thermogravimetric real existing electronic waste pyrolysis reactor more Test equipment, the device of employing is fixed-bed pyrolysis experimental provision, and this device mainly includes resistance furnace, pyrolysis reactor, nitrogen cylinder And collection and confinement of gases bag etc..Wherein resistance furnace provides thermal source, has a space, pyrolysis reactor describes for a cylinder inside it Device, material is just put in pyrolysis reactor.During Pyrolysis Experiment, first the pyrolysis reactor equipped with material is put into resistance furnace Interior, then open nitrogen cylinder be passed through nitrogen start purge, purging enough time after, resistance furnace energising produce temperature field, thing Material just starts to be pyrolyzed, and airbag starts to collect gas, and when waiting gas not regenerate, experiment terminates, and treats that body of heater naturally cools to 40 DEG C, Open body of heater, take out pyrolysis residue, weigh and elementary analysiss, finally closing instrument, above-mentioned fixed-bed pyrolysis experimental technique, Do not enable material to be back to back, corresponding nor realize material continuous pyrolysis.Therefore how to design a kind of blockage resisting And the electronic waste processing meanss of energy continuous pyrolysis and method become the problem of this area urgent need to resolve.
Content of the invention
It is contemplated that at least solving one of technical problem present in prior art.For this reason, the present invention is directed to existing skill It is proposed that a kind of heat accumulating type blockage resisting electronic waste pyrolysis installation and method, this device has pyrolysis efficiency high, even for the deficiency of art Continuous input and output material, the advantages of prevent discharge blockage and energy-saving effect notable.
For solving above-mentioned technical problem, the technical solution used in the present invention is:
The present invention proposes a kind of heat accumulating type blockage resisting electronic waste pyrolysis installation, according to embodiments of the invention, this device bag Include:Electronic waste pyrolysis reactor and regenerative gas heating system, wherein, described electronic waste pyrolysis reactor includes:Thing Material pyrolization modules and reactor shell, described material pyrolization modules are across the both sides of described reactor shell, and described material The exposed outside in described reactor shell in two ends of pyrolization modules;Described material pyrolization modules include shaped spiral housing and push away Enter spiral, wherein, described shaped spiral housing extends through described from described reactor shell side along described reactor enclosure intracoelomic cavity The opposite side of reactor shell, the exposed outside in described reactor shell in two ends of described shaped spiral housing is so that described Form confined space, described confined space constitutes described regenerative gas heating system between reactor shell and described shaped spiral housing The reactor shell exhaust gases passes of system;The right lower quadrant of the exposed described shaped spiral housing in described reactor enclosure external body is provided with slag Material outlet and flue gas heat tracing pipe, described flue gas heat tracing pipe is arranged on the periphery of described slag charge outlet, enters for heat smoke When described flue gas heat tracing pipe heats to described flue gas heat tracing pipe, the described flue gas heat tracing pipe of intensification is made slag charge to be carried out add Heat, prevents described slag charge outlet blockage;Described regenerative gas heating system includes:Heat accumulating type for producing heat smoke fires Burn device and the reactor shell exhaust gases passes for conveying heat smoke, described heat accumulating burner and described reactor shell It is connected.
Inventor finds, this device according to embodiments of the present invention, can achieve material of being back to back, material is in pyrolytic reaction It is tiled in device, contacts with shaped spiral housing fully, high-temperature spiral housing passes through radiation and heat conduction two ways and heats to material, because This material can be fully quickly pyrolyzed, and material is pushed into spiral in pyrolytic process and gradually pushes ahead it is achieved that side The function of pyrolysis side propulsion;By the use of regenerative gas heating system as the thermal source of pyrolysis reactor, its fuel can be high heating value Combustion gas(Natural gas, liquefied petroleum gas etc.), alternatively fuel gas with low heat value(Producer gas, coal gas of converter, blast furnace gas, mixing Coal gas etc.), due to employing heat storage type combustion mode, combustion air is preheating to high temperature by regenerator, it is achieved thereby that efficiently steady Fixed burning, regenerative gas heating system and pyrolysis reactor link together and form heat accumulating type blockage resisting electronic waste pyrolysis dress Put it is achieved that material of being back to back, material are continuously quickly fully pyrolyzed, will be pyrolyzed slag charge companion using fume afterheat simultaneously Heat, effectively prevent the blocking of slag charge outlet and the function such as energy-efficient.
According to embodiments of the invention, the exposed described shaped spiral housing in described reactor enclosure external body is additionally provided with thing Material import and oil gas vent, and described material inlet is located at described shaped spiral housing upper left quarter, and described oil gas vent is located at described Shaped spiral housing upper right quarter.
According to embodiments of the invention, described flue gas heat tracing pipe is arranged on described slag charge outlet with helical duct form Outside, and concentric with slag charge outlet, so that described slag charge outlet is heated evenly.
According to embodiments of the invention, described propulsion spiral is located inside described shaped spiral housing, and the propulsion of described material Spiral includes helical axis and helical blade, and described helical blade is fixed on described helical axis and is arranged to and described helical axis Rotate coaxially, described helical axis stretches out described shaped spiral housing, the length of described helical blade and institute in described material inlet side State shaped spiral housing identical.
According to embodiments of the invention, described heat accumulating burner include air line, burning line, flue gas pipeline, Reversal valve, regenerator and combustor, described air line is connected with described reversal valve, described flue gas pipeline one end and described commutation Valve connects, and the other end is connected with described flue gas heat tracing pipe, and described reversal valve is connected with described regenerator, described regenerator with described Combustor is connected.
According to embodiments of the invention, described heat accumulating burner includes 2 combustor, 2 regenerator and 2 and changes To valve, described combustor, regenerator, reversal valve are respectively arranged in the both sides of described reactor shell, in normal work, described Can alternately burn-smoke discharging in the both sides of heat storage type combustion.
According to embodiments of the invention, the flue-gas temperature discharged after described reversal valve is 120 DEG C -200 DEG C, enters into Described flue gas heat tracing pipe, and heat tracing is carried out to slag charge, prevent from blocking.
According to embodiments of the invention, described shaped spiral housing is heat-resisting steel sheel, and thickness is 5-8mm;Described reactor enclosure The outer wrap of body has insulation material, and described insulation material is heat-preservation cotton and asbestos board, and heat-preservation cotton filling needs to be compacted, to protect Card heat insulating ability.
In another aspect of the present invention, the invention provides one kind is carried out to electronic waste using foregoing device The method of pyrolysis.According to embodiments of the invention, the method comprises the following steps:Step one:Open regenerative gas heating system System:Open A side air line, be then turned on A side burning line, the mixed gas of air and combustion gas lighted by starting ignition rifle, mix Close after gas burns in A side combusion chamber and produce high-temperature flue gas, high-temperature flue gas enter into the exhaust gases passes in reactor enclosure body, In exhaust gases passes, high-temperature flue gas heat to shaped spiral housing, then into B side exhaust opening, last flue gas through B side regenerator, B side reversal valve and flue gas pipeline enter in described flue gas heat tracing pipe, and described flue gas heat tracing pipe is heated;The burning of A side is certain After time, both sides reversal valve commutates, and starts the burning of B side, now discharged fume in A side, both sides alternate combustion-smoke discharging;Step Two, material pyrolytic process:After stable etc. combustion system, described shaped spiral housing is heated to uniform temperature, puts in material inlet Electronic waste material, after described material enters into propulsion spiral, is pyrolyzed in forward movement, until moving to slag charge outlet Pipe is pyrolyzed and finishes, and the gas that pyrolysis produces is discharged from oil gas vent, and remaining pyrolysis slag charge is discharged from slag charge outlet, Described flue gas heat tracing pipe, to pyrolysis slag charge heat tracing, prevents the blocking of described slag charge outlet simultaneously.
According to embodiments of the invention, described step one, described A side is the left side of described reactor shell, and described B side is The right side of described reactor shell;In described step 2, described shaped spiral housing is heated to 600-700 DEG C.
The present invention at least has the advantages that:Using this heat accumulating type blockage resisting electronic waste pyrolysis installation, can achieve It is back to back material, material is tiled in pyrolysis reactor, contacts fully with shaped spiral housing, high-temperature spiral housing passes through radiation Heat to material with heat conduction two ways, therefore material can be fully quickly pyrolyzed, and material is pushed away in pyrolytic process Enter spiral and gradually push ahead the function it is achieved that advancing in pyrolysis;Anti- as pyrolysis by the use of regenerative gas heating system Answer the thermal source of device, its fuel can be high heating value combustion gas(Natural gas, liquefied petroleum gas etc.), alternatively fuel gas with low heat value(Producer Coal gas, coal gas of converter, blast furnace gas, mixed gas etc.), due to employing heat storage type combustion mode, combustion air is by regenerator It is preheating to high temperature, it is achieved thereby that efficient stable burning.Regenerative gas heating system and pyrolysis reactor link together group Become heat accumulating type blockage resisting electronic waste pyrolysis installation it is achieved that material of being back to back, material are continuously quickly fully pyrolyzed, together Shi Liyong fume afterheat will be pyrolyzed slag charge heat tracing, effectively prevent the blocking of slag charge outlet and the function such as energy-efficient.
Brief description
Fig. 1 is the pyrolysis reactor structural representation of heat accumulating type blockage resisting electronic waste pyrolysis installation of the present invention.
Fig. 2 is heat accumulating type blockage resisting electronic waste pyrolysis installation structural representation of the present invention.
Wherein, spiral 10, material inlet 11, slag charge outlet 12, oil gas vent 13, shaped spiral housing 14, reactor are advanced Housing 15, exhaust gases passes 16, flue gas heat tracing pipe 17, helical axis 18, helical blade 19, regenerative gas heating system 20, A side is fired Burn room(A side exhaust opening)20-1, B side combusion chamber(B side exhaust opening)20-2, A side regenerator 21-1, B side regenerator 21-2, A side Reversal valve 22-1, B side reversal valve 22-2, burning line 23, air line 24, flue gas pipeline 25.
Specific embodiment
In order that those skilled in the art more fully understand technical scheme, with reference to specific embodiment to this Invention is described in further detail.The embodiments described below is exemplary, is only used for explaining the present invention, and is not understood that For limitation of the present invention.Unreceipted particular technique or condition in embodiment, according to the skill described by document in the art Art or condition or carry out according to product description.
The invention provides a kind of heat accumulating type blockage resisting electronic waste pyrolysis installation, according to embodiments of the invention, Fig. 1 is The pyrolysis reactor structural representation of heat accumulating type blockage resisting electronic waste pyrolysis installation of the present invention, shown in reference Fig. 1, this device bag Include:Electronic waste pyrolysis reactor and regenerative gas heating system 20, wherein, described electronic waste pyrolysis reactor includes: Material pyrolization modules and reactor shell 15, have insulation material in the outer wrap of described reactor shell, described insulation material Concrete species unrestricted, as long as high-efficiency insulated effect can be played, according to some embodiments of the present invention, this Bright described insulation material is preferably heat-preservation cotton and asbestos board, and heat-preservation cotton filling needs to be compacted, to ensure heat insulating ability, for reducing The radiation loss of wall.
According to embodiments of the invention, described material pyrolization modules include shaped spiral housing 14 and propulsion spiral 10, with reference to Fig. 1 Shown, described material pyrolization modules are across the both sides of described reactor shell, and two ends of described material pyrolization modules The exposed outside in described reactor shell, wherein, the concrete material of described shaped spiral housing is unrestricted, as long as can be high temperature resistant anti- Corrode, according to some embodiments of the present invention, shaped spiral housing of the present invention is preferably heat-resisting steel sheel, and its thickness is excellent Elect 5-8mm as;Described shaped spiral housing extends through described anti-from described reactor shell side along described reactor enclosure intracoelomic cavity Answer the opposite side of device housing, the exposed outside in described reactor shell in two ends of described shaped spiral housing is so that described anti- Answer formation confined space between device housing and described shaped spiral housing, described confined space constitutes described regenerative gas heating system Reactor shell exhaust gases passes 16, burning produce high-temperature flue gas enter flue gas circulation passage, then transfer heat to it Internal shaped spiral housing;It is provided with material inlet 11, oil gas on the exposed described shaped spiral housing in described reactor enclosure external body Outlet 13, slag charge outlet 12 and flue gas heat tracing pipe 17, and described material inlet is located at described shaped spiral housing upper left quarter, described Oil gas vent is located at described shaped spiral housing upper right quarter, and described slag charge outlet and flue gas heat tracing pipe are arranged at described shaped spiral housing Right lower quadrant, wherein, described flue gas heat tracing pipe is arranged on the periphery of described slag charge outlet with helical duct form, and and slag charge Outlet with one heart, makes described slag charge outlet be heated evenly, and enters described flue gas heat tracing pipe to described flue gas companion for heat smoke When heat pipe is heated, make the flue gas heat tracing pipe of intensification that slag charge is heated, prevent described slag charge outlet blockage.
According to embodiments of the invention, with reference to shown in Fig. 1, described propulsion spiral is located inside described shaped spiral housing, and Described material propulsion spiral includes helical axis 18 and helical blade 19, and described helical blade is fixed on described helical axis and is set It is set to and rotates coaxially with described helical axis, described helical axis stretches out described shaped spiral housing, described spiral shell in described material inlet side The length of vane piece is identical with described shaped spiral housing;Described propulsion spiral outside motor belt motor move under with certain rotational speed, After electronic waste material enters into described reactor, gradually it is pyrolyzed with the rising of temperature, is advanced to simultaneously, directly It is pyrolyzed to before export and finishes, the pyrolysis gas that pyrolysis produces are discharged from oil gas vent, the slag charge after pyrolysis exports from slag charge Bank of tubes goes out, and described flue gas heat tracing pipe, to pyrolysis slag charge heat tracing, prevents the blocking of described slag charge outlet simultaneously.
According to embodiments of the invention, Fig. 2 is heat accumulating type blockage resisting electronic waste pyrolysis installation structural representation of the present invention, With reference to shown in Fig. 2, described regenerative gas heating system includes:For producing the heat accumulating burner of heat smoke and being used for defeated Send the reactor shell exhaust gases passes of heat smoke, described heat accumulating burner is connected with described reactor shell, when described The conveying by described exhaust gases passes for the high-temperature flue gas that heat accumulating burner produces, then the cigarette discharged after described reversal valve Temperature degree is 120 DEG C -200 DEG C, enters described flue gas heat tracing pipe through flue gas pipeline, carries out high temperature heat tracing to pyrolysis slag charge, effectively Prevent the blocking of slag charge outlet;Wherein, described heat accumulating burner includes:Air line, burning line, fume pipe Line, reversal valve, regenerator and combustor, described air line is connected with described reversal valve, described flue gas pipeline one end with described Reversal valve connects, and the other end is connected with described flue gas heat tracing pipe, and described reversal valve is connected with described regenerator, described regenerator and Described combustor is connected.
According to embodiments of the invention, the heat storage within described regenerator can adopt ceramic bead or ceramic honeycomb body, Preferably ceramic honeycomb ceramics.
According to embodiments of the invention, the concrete material of described air line and species are unrestricted, as long as can be combustion Material provides combustion air, and air first passes through described reversal valve by described air line, then into described accumulation of heat Absorbing heat in room, is heated to high temperature to described checker port, enters back into described combustor and burns with combustion gas mixing.
According to embodiments of the invention, the concrete material of described burning line and species are unrestricted, as long as can be combustion Burning reaction provides combustion gas, according to high heating value combustion gas it is only necessary to air accumulation of heat can stably be burnt, according to low heat value combustion Gas, then need air and combustion gas all accumulation of heats.
According to embodiments of the invention, the concrete material of described flue gas pipeline and species are unrestricted, as long as can be by flue gas Discharge described reactor, flue gas pipeline of the present invention is flue gas exhausting pipe line, and combustion product flue-gas temperature is 120 Between DEG C -200 DEG C, by, in this pipelined to described flue gas heat tracing pipe, heat tracing being carried out to the outlet of described slag charge.
According to embodiments of the invention, described reversal valve is used for air-flue gas commutation, when side is in fired state, Described regenerator is connected with described air line by described reversal valve, and then provides high temperature combustion air to burning;Work as side When being in smoke evacuation state, reversal valve commutates, and now described regenerator is just connected with described flue gas pipeline by described reversal valve, cigarette Gas will pass through this pipelined in described flue gas heat tracing pipe, carries out heat tracing to the outlet of described slag charge.
According to embodiments of the invention, described regenerator is the medium of air-flue gas heat exchange, when side is in fired state When, air enters described regenerator from described regenerator bottom, and ceramic honeycomb body is gradually cooled as it passes through the cooler;When side is in smoke evacuation state When, flue gas enters described regenerator from described regenerator top, and ceramic honeycomb body is gradually heated by the sonochemical activity.
According to embodiments of the invention, described combustor is the combustion space of combustion gas, is the outlet of flue gas again, as During for combustion space, first in described burning Indoor Combustion, the high-temperature flue gas of generation enter back into described reactor for combustion gas and air Enclosure interior, burning is carried out in described burning interior, it is to avoid thermal-flame directly burns described shaped spiral housing;When arranging as flue gas During discharge port, flue gas, from discharging herein, then sequentially enters described regenerator, reversal valve, finally enters described flue gas heat tracing pipe Heat tracing is carried out to the outlet of described slag charge, prevents the blocking of slag charge outlet.
According to embodiments of the invention, with reference to shown in Fig. 2, described heat accumulating burner includes:2 combustor, 2 storages Hot cell and 2 reversal valves, described combustor, regenerator, reversal valve are respectively arranged in the both sides of described reactor shell, just When often working, can alternately burn and two technological processes of smoke discharging in the both sides of described heat storage type combustion, when side is in combustion Burning state, opposite side is at the state of smoke discharging, and after a commutation cycle, both sides reversal valve commutates, and combustion side is changed into Smoke evacuation side, smoke evacuation side be changed into combustion side, both sides exchange process flow process works on, be in circulation commutation during it is achieved that Be back to back material and material by the function of continuously quickly fully pyrolysis.
According to embodiments of the invention, with reference to shown in Fig. 2, described combustor is divided into A side combusion chamber(A side exhaust opening)20-1 With B side combusion chamber(B side exhaust opening)20-2, described heat accumulating type is divided into A side regenerator 21-1 and B side regenerator 21-2, described changes It is divided into A side reversal valve 22-1, B side reversal valve 22-2 to valve, according to a particular embodiment of the invention, described A side is described reaction The left side of device housing, described B side is the right side of described reactor shell.
When unlatching regenerative gas heating system:Open A side air line, be then turned on A side burning line, starting ignition The mixed gas of air and combustion gas lighted by rifle, and mixed gas produce high-temperature flue gas, high-temperature flue gas after burning in A side combusion chamber Enter into the exhaust gases passes in reactor enclosure body, high-temperature flue gas heat to shaped spiral housing in exhaust gases passes, then into B side Exhaust opening, last flue gas enters in described flue gas heat tracing pipe through B side regenerator, B side reversal valve and flue gas pipeline, to described cigarette Gas heat tracing pipe is heated;After the burning certain time of A side, both sides reversal valve commutates, and starts the burning of B side, now A side is arranged Cigarette, both sides alternate combustion-smoke discharging.
In another aspect of the present invention, the invention provides one kind is carried out to electronic waste using foregoing device The method of pyrolysis.The method may comprise steps of:
Step one:Open regenerative gas heating system:Open A side air line, be then turned on A side burning line, start point The mixed gas of air and combustion gas lighted by firelock, and mixed gas produce high-temperature flue gas, high temperature cigarette after burning in A side combusion chamber Gas enters into the exhaust gases passes in reactor enclosure body, and in exhaust gases passes, high-temperature flue gas heat to shaped spiral housing, then into B Side exhaust opening, last flue gas enters in described flue gas heat tracing pipe through B side regenerator, B side reversal valve and flue gas pipeline, to described Flue gas heat tracing pipe is heated;After the burning certain time of A side, both sides reversal valve commutates, and starts the burning of B side, now A side is carried out Smoke evacuation, both sides alternate combustion-smoke discharging.
According to embodiments of the invention, Fig. 2 is heat accumulating type blockage resisting electronic waste pyrolysis installation structural representation of the present invention, With reference to shown in Fig. 2, described regenerative gas heating system includes:For producing the heat accumulating burner of heat smoke and being used for defeated Send the reactor shell exhaust gases passes of heat smoke, described heat accumulating burner is connected with described reactor shell, when described The conveying by described exhaust gases passes for the high-temperature flue gas that heat accumulating burner produces, then the cigarette discharged after described reversal valve Temperature degree is 120 DEG C -200 DEG C, enters described flue gas heat tracing pipe through flue gas pipeline, carries out high temperature heat tracing to pyrolysis slag charge, effectively Prevent the blocking of slag charge outlet;Wherein, described heat accumulating burner includes:Air line, burning line, fume pipe Line, reversal valve, regenerator and combustor, described air line is connected with described reversal valve, described flue gas pipeline one end with described Reversal valve connects, and the other end is connected with described flue gas heat tracing pipe, and described reversal valve is connected with described regenerator, described regenerator and Described combustor is connected.
According to embodiments of the invention, with reference to shown in Fig. 2, described heat accumulating burner includes:2 combustor, 2 storages Hot cell and 2 reversal valves, described combustor, regenerator, reversal valve are respectively arranged in the both sides of described reactor shell, just When often working, can alternately burn and two technological processes of smoke discharging in the both sides of described heat storage type combustion, when side is in combustion Burning state, opposite side is at the state of smoke discharging, and after a commutation cycle, both sides reversal valve commutates, and combustion side is changed into Smoke evacuation side, smoke evacuation side be changed into combustion side, both sides exchange process flow process works on, be in circulation commutation during it is achieved that Be back to back material and material by the function of continuously quickly fully pyrolysis.
According to embodiments of the invention, with reference to shown in Fig. 2, described combustor is divided into A side combusion chamber(A side exhaust opening)20-1 With B side combusion chamber(B side exhaust opening)20-2, described heat accumulating type is divided into A side regenerator 21-1 and B side regenerator 21-2, described changes It is divided into A side reversal valve 22-1, B side reversal valve 22-2 to valve, according to a particular embodiment of the invention, described A side is described reaction The left side of device housing, described B side is the right side of described reactor shell.
Step 2, material pyrolytic process:After stable etc. combustion system, described shaped spiral housing is heated to 600-700 DEG C, Material inlet puts into electronic waste material, after described material enters into propulsion spiral, is pyrolyzed in forward movement, until moving Move slag charge outlet and be pyrolyzed and finish, the gas that pyrolysis produces is discharged from oil gas vent, remaining pyrolysis slag charge is from slag charge Outlet is discharged, and described flue gas heat tracing pipe, to pyrolysis slag charge heat tracing, prevents the blocking of described slag charge outlet simultaneously.
According to embodiments of the invention, shown in reference Fig. 1, the exposed described shaped spiral housing in described reactor enclosure external body On be provided with material inlet, oil gas vent, slag charge outlet and flue gas heat tracing pipe, and described material inlet be located at described spiral Housing upper left quarter, described oil gas vent is located at described shaped spiral housing upper right quarter, and described slag charge outlet and flue gas heat tracing pipe are all provided with Put the right lower quadrant in described shaped spiral housing, wherein, described flue gas heat tracing pipe is arranged on described slag charge outlet with helical duct form The periphery of pipe, and concentric with slag charge outlet, so that described slag charge outlet is heated evenly, enter described flue gas companion for heat smoke When heat pipe heats to described flue gas heat tracing pipe, make the flue gas heat tracing pipe of intensification that slag charge is heated, prevent described slag charge Outlet blockage.
Inventor finds, this device according to embodiments of the present invention, can achieve material of being back to back, material is in pyrolytic reaction It is tiled in device, contacts with shaped spiral housing fully, high-temperature spiral housing passes through radiation and heat conduction two ways and heats to material, because This material can be fully quickly pyrolyzed, and material is pushed into spiral in pyrolytic process and gradually pushes ahead it is achieved that side The function of pyrolysis side propulsion;By the use of regenerative gas heating system as the thermal source of pyrolysis reactor, its fuel can be high heating value Combustion gas(Natural gas, liquefied petroleum gas etc.), alternatively fuel gas with low heat value(Producer gas, coal gas of converter, blast furnace gas, mixing Coal gas etc.), due to employing heat storage type combustion mode, combustion air is preheating to high temperature by regenerator, it is achieved thereby that efficiently steady Fixed burning, regenerative gas heating system and pyrolysis reactor link together and form heat accumulating type blockage resisting electronic waste pyrolysis dress Put it is achieved that material of being back to back, material are continuously quickly fully pyrolyzed, will be pyrolyzed slag charge companion using fume afterheat simultaneously Heat, effectively prevent the blocking of slag charge outlet and the function such as energy-efficient.
Embodiment:Regenerative gas combustion system adopts natural gas as combustion gas, and amount of natural gas is 2Nm3/ h, air capacity is 22 Nm3/ h, electronic waste material(Predominantly circuit board, electric wire and keyboard)It is made into the granule of 3-6mm, inlet feed amount is 1kg/h, the pyrolysis slag charge finally giving is 0.8kg/h, and the pyrolysis oil gas of generation is 0.286 Nm3/ h is it is achieved that be back to back Material, in pyrolytic process, constant temperature is maintained at 600 DEG C -700 DEG C, and thermal source stability is fine.
Oil gas chemical examination composition is as follows:
Table 1 electronic waste pyrolysis gas composition
Title H2 CO2 O2 N2 CH4 CO
Content (%) 43.6 8.4 1.5 4.7 19.9 21.9
Solid residue after pyrolysis is detected, finds that main component is the carbon and metal that can not be pyrolyzed, metal mainly wraps Include copper, nickel and ferrum, do not contain the composition that resin and glass fibre etc. can be pyrolyzed, pyrolysis effect is fine.
In the description of this specification, reference term " embodiment ", " some embodiments ", " illustrative examples ", The description of " example ", " specific example " or " some examples " etc. means specific features, the knot describing with reference to this embodiment or example Structure, material or feature are contained at least one embodiment or the example of the present invention.In this manual, to above-mentioned term Schematic representation is not necessarily referring to identical embodiment or example.And, the specific features of description, structure, material or spy Point can combine in any one or more embodiments or example in an appropriate manner.
In describing the invention it is to be understood that term " on ", D score, "left", "right", " interior ", the instruction such as " outward " Orientation or position relationship be based on orientation shown in the drawings or position relationship, be for only for ease of description the present invention and simplification retouch State, rather than instruction or the hint device of indication or element must have specific orientation, with specific azimuth configuration and operation, Therefore it is not considered as limiting the invention.Additionally, term " first ", " second " are only used for describing purpose, and it is not understood that For indicating or implying relative importance or the implicit quantity indicating indicated technical characteristic.Thus, define " first ", The feature of " second " can be expressed or implicitly include one or more this feature.In describing the invention, unless It is otherwise noted, " multiple " are meant that two or more.
In describing the invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or is integrally connected;Can To be to be mechanically connected or point connection;Can be to be joined directly together it is also possible to be indirectly connected to by intermediary, Ke Yishi The connection of two element internals.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition Concrete meaning in invention.
Although embodiments of the invention have been shown and described above it is to be understood that above-described embodiment is example Property it is impossible to be interpreted as limitation of the present invention, those of ordinary skill in the art within the scope of the invention can be to above-mentioned Embodiment is changed, changes, replacing and modification, simultaneously for one of ordinary skill in the art, according to the think of of the application Think, all will change in specific embodiments and applications.

Claims (10)

1. a kind of heat accumulating type blockage resisting electronic waste pyrolysis installation is it is characterised in that include:Electronic waste pyrolysis reactor and storage Hot type gas heating system, wherein,
Described electronic waste pyrolysis reactor includes:Material pyrolization modules and reactor shell, described material pyrolization modules across The both sides of described reactor shell, and two ends of described material pyrolization modules are exposed outer in described reactor shell Portion;
Described material pyrolization modules include shaped spiral housing and propulsion spiral,
Wherein, described shaped spiral housing extends through described reaction from described reactor shell side along described reactor enclosure intracoelomic cavity The opposite side of device housing, the exposed outside in described reactor shell in two ends of described shaped spiral housing is so that described reaction Form confined space, described confined space constitutes described regenerative gas heating system between device housing and described shaped spiral housing Reactor shell exhaust gases passes;
The right lower quadrant of the exposed described shaped spiral housing in described reactor enclosure external body is provided with slag charge outlet and flue gas heat tracing Pipe, described flue gas heat tracing pipe is arranged on the periphery of described slag charge outlet, enters described flue gas heat tracing pipe to institute for heat smoke When stating flue gas heat tracing pipe and being heated, make the described flue gas heat tracing pipe of intensification that slag charge is heated, prevent described slag charge outlet Blockage;
Described regenerative gas heating system includes:For producing the heat accumulating burner of heat smoke and being used for conveying heat smoke Reactor shell exhaust gases passes, described heat accumulating burner is connected with described reactor shell.
2. electronic waste pyrolysis installation according to claim 1 it is characterised in that exposed in described reactor enclosure external body Described shaped spiral housing on be additionally provided with material inlet and oil gas vent, and described material inlet to be located at described shaped spiral housing left Top, described oil gas vent is located at described shaped spiral housing upper right quarter.
3. electronic waste pyrolysis installation according to claim 1 is it is characterised in that described flue gas heat tracing pipe is with helical duct Form is arranged on the outside of described slag charge outlet, and concentric with slag charge outlet, so that described slag charge outlet is heated evenly.
4. the electronic waste pyrolysis installation according to any one of claim 1-3 is it is characterised in that described propulsion spiral position Inside described shaped spiral housing, and described material propulsion spiral includes helical axis and helical blade, and described helical blade is fixed On described helical axis and be arranged to rotate coaxially with described helical axis, described helical axis stretches out in described material inlet side Described shaped spiral housing, the length of described helical blade is identical with described shaped spiral housing.
5. the electronic waste pyrolysis installation according to any one of claim 1-3 is it is characterised in that described heat storage type combustion Device includes air line, burning line, flue gas pipeline, reversal valve, regenerator and combustor, and described air line is changed with described Connect to valve, described flue gas pipeline one end is connected with described reversal valve, and the other end is connected with described flue gas heat tracing pipe, described commutation Valve is connected with described regenerator, and described regenerator is connected with described combustor.
6. electronic waste pyrolysis installation according to claim 5 is it is characterised in that described heat accumulating burner includes 2 Individual combustor, 2 regenerator and 2 reversal valves, described combustor, regenerator, reversal valve are respectively arranged in described reactor The both sides of housing, in normal work, can alternately burn-smoke discharging in the both sides of described heat storage type combustion.
7. the electronic waste pyrolysis installation according to any one of claim 1-3 is it is characterised in that through described reversal valve The flue-gas temperature discharged afterwards is 120 DEG C -200 DEG C, enters into described flue gas heat tracing pipe, and carries out heat tracing to slag charge, prevents from blocking.
8. the electronic waste pyrolysis installation according to any one of claim 1-3 is it is characterised in that described shaped spiral housing is Heat-resisting steel sheel, thickness is 5-8mm;The outer wrap of described reactor shell has insulation material, and described insulation material is insulation Cotton and asbestos board, and heat-preservation cotton filling needs compacting, to ensure heat insulating ability.
9. a kind of using the heat accumulating type blockage resisting electronic waste pyrolysis installation described in claim 1-3, electronic waste is pyrolyzed Method it is characterised in that comprising the following steps:
Step one:Open regenerative gas heating system:Open A side air line, be then turned on A side burning line, start point The mixed gas of air and combustion gas lighted by firelock, and mixed gas produce high-temperature flue gas, high temperature cigarette after burning in A side combusion chamber Gas enters into the exhaust gases passes in reactor enclosure body, and in exhaust gases passes, high-temperature flue gas heat to shaped spiral housing, then into B Side exhaust opening, last flue gas enters in described flue gas heat tracing pipe through B side regenerator, B side reversal valve and flue gas pipeline, to described Flue gas heat tracing pipe is heated;After the burning certain time of A side, both sides reversal valve commutates, and starts the burning of B side, now A side is carried out Smoke evacuation, both sides alternate combustion-smoke discharging;
Step 2, material pyrolytic process:After stable etc. combustion system, described shaped spiral housing is heated to uniform temperature, in material Electronic waste material is put in import, after described material enters into propulsion spiral, is pyrolyzed in forward movement, until moving to Slag charge outlet is pyrolyzed and finishes, and the gas that pyrolysis produces is discharged from oil gas vent, and remaining pyrolysis slag charge exports from slag charge Pipe is discharged, and described flue gas heat tracing pipe, to pyrolysis slag charge heat tracing, prevents the blocking of described slag charge outlet simultaneously.
10. it is characterised in that described step one, described A side is described reactor shell to method according to claim 9 Left side, described B side is the right side of described reactor shell;In described step 2, described shaped spiral housing is heated to 600-700 ℃.
CN201611137003.5A 2016-12-12 2016-12-12 A kind of heat accumulating type blockage resisting electronic waste pyrolysis installation and method Pending CN106482114A (en)

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CN110129085A (en) * 2019-06-14 2019-08-16 武汉兴泰荣达科技有限公司 A kind of novel blob of viscose pyrolysis oil preparation system
CN110144236A (en) * 2019-06-14 2019-08-20 武汉兴泰荣达科技有限公司 A kind of heat accumulating type micelle reactor
CN113481021A (en) * 2021-07-12 2021-10-08 北京博霖环境科技有限公司 Circulation heat accumulation type static rotary pyrolysis device

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CN113481021A (en) * 2021-07-12 2021-10-08 北京博霖环境科技有限公司 Circulation heat accumulation type static rotary pyrolysis device

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