CN106479529A - A kind of heat accumulating type metallic honeycomb bodies electronic gas refuse pyrolysis system - Google Patents
A kind of heat accumulating type metallic honeycomb bodies electronic gas refuse pyrolysis system Download PDFInfo
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- CN106479529A CN106479529A CN201611136938.1A CN201611136938A CN106479529A CN 106479529 A CN106479529 A CN 106479529A CN 201611136938 A CN201611136938 A CN 201611136938A CN 106479529 A CN106479529 A CN 106479529A
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B53/00—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B47/00—Destructive distillation of solid carbonaceous materials with indirect heating, e.g. by external combustion
- C10B47/18—Destructive distillation of solid carbonaceous materials with indirect heating, e.g. by external combustion with moving charge
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/005—Separation by a physical processing technique only, e.g. by mechanical breaking
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C1/00—Electrolytic production, recovery or refining of metals by electrolysis of solutions
- C25C1/12—Electrolytic production, recovery or refining of metals by electrolysis of solutions of copper
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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Abstract
The present invention relates to refuse pyrolysis technical field, especially relate to a kind of heat accumulating type metallic honeycomb bodies electronic gas refuse pyrolysis system.This system includes：Raw material processing system, metal recovery system and electronic waste pyrolytic reaction system, wherein, described raw material processing system includes breaker and sorting unit；Described metal recovery system includes acidleach pond and electrolyzer；Described electronic waste pyrolytic reaction system includes：Electronic waste pyrolysis reactor, regenerative gas heating system and cooling separation, wherein, described electronic waste pyrolysis reactor includes：Material pyrolization modules and reactor shell；Described regenerative gas heating system includes：Heat accumulating burner, reactor shell exhaust gases passes and metallic honeycomb bodies；Described cooling separation includes：Indirect heat exchange dress device and cooling tower, this system has the advantages that to be pyrolyzed efficiency high, continuous feeding and discharging and electronic waste is divided into organic matter and metal part processes recovery respectively and energy-saving effect is notable.
Description
Technical field
The present invention relates to refuse pyrolysis technical field, especially relate to a kind of heat accumulating type metallic honeycomb bodies electronic gas rubbish
Pyrolysis system.
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, conventional pyrolytic mode does not enable continuous feeding and discharging, and is pyrolyzed
Complex process, pyrolysis efficiency are low, energy consumption is higher.
Adopting thermogravimetric test equipment existing electronic waste pyrolysis reactor, the device of employing is tested for fixed-bed pyrolysis more
Device, this device mainly includes resistance furnace, pyrolysis reactor, nitrogen cylinder and collection and confinement of gases bag etc..Wherein resistance furnace provides heat
, there is a space in source inside it, pyrolysis reactor is a hydrostatic column, and material is just put in pyrolysis reactor.Pyrolysis is real
When testing, first the pyrolysis reactor equipped with material is put in resistance furnace, then open nitrogen cylinder be passed through nitrogen start purge,
After purging enough time, resistance furnace energising produces temperature field, and material just starts to be pyrolyzed, and airbag starts to collect gas, waits gas
When body does not regenerate, experiment terminates, and treats that body of heater naturally cools to 40 DEG C, opens body of heater, takes out pyrolysis residue, weighs and unit
Element analysis, finally closes instrument.Above-mentioned fixed-bed pyrolysis experimental technique, does not enable material and is back to back, accordingly
Do not enable material continuous pyrolysis, and the point of most critical of the present invention is exactly the reactor using screw propulsion mode, realize continuous
Turnover material, continuous pyrolysis are so that pyrolytic process is more simple and efficient, and the pyrolytic process of this kind of material of being back to back is more
Easily realize industrialization.Therefore, how to design a kind of efficient, system structure and all simple system of technological process becomes this area urgently
The problem that need to solve.
Content of the invention
The present invention is directed to the deficiencies in the prior art it is proposed that a kind of heat accumulating type metallic honeycomb bodies electronic gas refuse pyrolysis system
System.This system has pyrolysis efficiency high, continuous feeding and discharging and is divided into organic matter and metal part to process respectively electronic waste
Reclaim, the advantages of the thermal source in device, pressure, atmosphere are stable, energy-saving effect is 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 metallic honeycomb bodies electronic gas refuse pyrolysis system.According to embodiments of the invention,
This system includes：Raw material processing system, metal recovery system and electronic waste pyrolytic reaction system, wherein, described Feedstock treating
System includes breaker and sorting unit, for sorting electronic waste for metal part and organic matter fractions；Described metal
Recovery system includes acidleach pond and electrolyzer, for the metal part that obtains of sorting is sent in described acidleach pond, thereto plus
Enter strong acid solution, after metal is completely dissolved, remaining produce through described electronic waste pyrolytic reaction system without metal part
Flue gas drying after, mix with described organic matter fractions, enter described electronic waste pyrolytic reaction system carry out pyrolytic reaction,
The strong acid solution rich in metal ion obtaining after dissolving metal is sent in described electrolyzer and is carried out cell reaction, reclaims metal
Copper；Described electronic waste pyrolytic reaction system includes：Electronic waste pyrolysis reactor, regenerative gas heating system and cooling point
From system, wherein, described electronic waste pyrolysis reactor includes：Material pyrolization modules and reactor shell, described material pyrolysis
Assembly across the both sides of described reactor shell, and described material pyrolization modules two ends exposed in described reactor enclosure
The outside of body, described material pyrolization modules include shaped spiral housing and material propulsion spiral, and wherein, described shaped spiral housing is from described anti-
Device housing side is answered to extend through the opposite side of described reactor shell along described reactor enclosure intracoelomic cavity, described shaped spiral housing
The exposed outside in described reactor shell in two ends is so that form close between described reactor shell and described shaped spiral housing
Close space, described confined space constitutes the reactor shell exhaust gases passes of described regenerative gas heating system；Described heat accumulating type
Gas heating system includes：For producing the heat accumulating burner of heat smoke and the reactor shell cigarette for conveying heat smoke
Gas passage, also includes metallic honeycomb bodies, and described heat accumulating burner is connected with described reactor shell exhaust gases passes, described
Metallic honeycomb bodies are installed in the exhaust gases passes between described reactor shell and described shaped spiral housing, and its pass is hexagon,
Its entire length is shorter than exhaust gases passes, respectively reserves one section of space at described exhaust gases passes two ends；Described cooling separation includes：
Indirect heat exchanger and for by cooled for the high-temperature gas product cooling tower obtaining pyrolysis gas and tar；Wherein, described indirectly change
The entrance of hot device is connected with oil gas vent, and the outlet of indirect heat exchanger is connected with the entrance of described cooling tower.
Inventor finds, this system 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；The method that the present invention adopts the pretreatment of raw material front end, by heavy metal removing, using heat accumulating type metal honeybee
As the thermal source of pyrolysis reactor, its fuel is high heating value combustion gas to nest body fuel gas heating system（Natural gas, liquefied petroleum gas etc.）,
Due to employing heat storage type combustion mode, combustion air is preheating to high temperature by regenerator, it is achieved thereby that efficient stable burning.Cigarette
In gas passage, metallic honeycomb bodies are installed, enabling preferably absorb flue gas heat, due to metal high heat conduction ability so that
In whole exhaust gases passes, temperature is more uniform, and shaped spiral housing is by heating evenly it is achieved that material of being back to back, material are connected
Continuous quickly fully pyrolysis and the function such as energy-efficient, and utilize raw material processing system and metal recovery system, it is to avoid
The severe contamination that heavy metal causes, environmental protection.
According to embodiments of the invention, the exposed described shaped spiral housing in described reactor enclosure external body is provided with material
Import, oil gas vent, slag charge outlet, and described material inlet is located at described shaped spiral housing upper right quarter, described oil gas vent position
In described shaped spiral housing upper left quarter, described slag charge outlet is located at described shaped spiral housing lower left quarter；Described material propulsion spiral is located at
Inside described shaped spiral housing, and described material propulsion spiral includes helical axis and helical blade, and described helical blade is fixed on
On described helical axis and be arranged to rotate coaxially with described helical axis, described helical axis stretches out institute in described material inlet side
State shaped spiral housing, the length of described helical blade is identical with described shaped spiral housing.
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 and described flue gas pipeline are connected with described reversal valve respectively, described commutation
Valve is connected with described regenerator, and described regenerator is connected with described combustor.
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, described shaped spiral housing is heat-resisting steel sheel, and thickness is 5-8mm, in described electrolyzer
Anode material is graphite, and cathode material is titanium plate, corrosion resistant plate, copper coin and proof gold plate, and the voltage range of this electrolyzer is 0.1-
3V, electric current density is 1-5A/dm2, in electrolyzer, temperature is 20-80 DEG C, the cigarette that described electronic waste pyrolytic reaction system produces
Temperature degree is 90-140 DEG C, and described strong acid solution is concentrated sulphuric acid or chloroazotic acid.
According to embodiments of the invention, the outer wrap of described reactor shell has insulation material, and described insulation material is
Heat-preservation cotton, and described heat-preservation cotton external galvanized iron sheet parcel.
According to embodiments of the invention, described metallic honeycomb bodies are located in described exhaust gases passes, using described metal beehive
Body surface area is big, preferably absorbs flue gas heat, and metal heat-conducting ability is strong so that whole temperature field is more uniform, flue gas energy
More uniformly heat described shaped spiral housing.
According to embodiments of the invention, described pyrolysis gas are rich in combustibility and the reproducibility of methane, hydrogen and carbon monoxide
Gas, one part is used for described heating system raw material combustion gas, and heating repeats itself utilizes, and another part can be used as also Primordial Qi.
In another aspect of the present invention, the invention provides one kind is carried out to electronic waste using foregoing system
The method of pyrolysis.According to embodiments of the invention, the method comprises the following steps：First：Electronic waste Feedstock treating：Raw material enters
Enter described breaker to be crushed, then sieved through sorting unit, obtain metal and organic matter；Second：Metal recovery：
Metal part is sent in acidleach pond, after metal is completely dissolved, remaining without metal part after flue gas drying, and described
Organic matter fractions mix, and enter response system and carry out pyrolytic reaction.The strong acid rich in metal ion obtaining after dissolving metal is molten
Liquid is sent in electrolyzer and is carried out cell reaction, reclaims metallic copper；3rd：Open regenerative gas heating system, its step is as follows：
Open A side air line, be then turned on A side burning line, starting ignition rifle lights the mixed gas of air and combustion gas, gaseous mixture
Body produces high-temperature flue gas after burning in A side combusion chamber, and high-temperature flue gas enter into the exhaust gases passes in reactor enclosure body, in cigarette
In gas passage, high-temperature flue gas flow through metallic honeycomb bodies, and described metallic honeycomb bodies absorb flue gas heat, and heat to shaped spiral housing, so
After enter into B side exhaust opening, last flue gas is discharged in external environment through B side regenerator, B side reversal valve and flue gas pipeline, A
After the burning certain time of side, both sides reversal valve commutates, and starts the burning of B side, now discharged fume in A side, both sides alternate combustion-row
Flue gas；
4th, material pyrolytic process：After combustion system is stable, described shaped spiral housing is heated to uniform temperature, in material inlet
Put into material, after described material enters into propulsion spiral, be pyrolyzed in forward movement, until it is hot to move to slag charge outlet
Solution finishes, and the high-temperature gas that pyrolysis produces is discharged from oil gas vent, and remaining pyrolysis slag charge is discharged from slag charge outlet, described height
Wet body, after described cooling separation, obtains pyrolysis gas and tar, and this pyrolysis gas is rich in methane, hydrogen, carbon monoxide
Combustibility and reducibility gas, a part, as heating system raw material combustion gas, heats itself, and another part can be used as also Primordial Qi.
According to embodiments of the invention, in described step 3, described A side is the left side of described reactor shell, described B side
Right side for described reactor shell；In described step 4, 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 metallic honeycomb bodies electronic gas refuse pyrolysis system, can achieve material of being back to back, material is in pyrolysis
Be tiled in reactor, contact with shaped spiral housing fully, high-temperature spiral housing pass through radiation and heat conduction two ways to material plus
Heat, therefore material can be fully quickly pyrolyzed, and material is pushed into spiral in pyrolytic process and gradually pushes ahead, and realize
The function that advances in pyrolysis；The method that the present invention adopts the pretreatment of raw material front end, by heavy metal removing, using heat accumulating type combustion
As the thermal source of pyrolysis reactor, its fuel is high heating value combustion gas to gas heating system（Natural gas, liquefied petroleum gas etc.）, due to adopting
With heat storage type combustion mode, combustion air is preheating to high temperature by regenerator, it is achieved thereby that efficient stable burning, exhaust gases passes
Interior addition metallic honeycomb bodies, because honeycomb ceramics has larger specific surface area, it is possible to preferably absorbing flue gas heat, and by
In metal high heat conduction ability so that temperature is more uniform in whole exhaust gases passes, accordingly shaped spiral housing is heated also more equal
Even.Achieve material of being back to back, material is by continuously quickly fully pyrolysis and the function such as energy-efficient, and utilize raw material
Processing system and metal recovery system, it is to avoid the severe contamination that heavy metal causes, environmental protection.
Brief description
Fig. 1 is the Feedstock treating of heat accumulating type metallic honeycomb bodies electronic gas refuse pyrolysis system according to embodiments of the present invention
System and metal recovery system schematic.
Fig. 2 is the pyrolytic reaction of the heat accumulating type metallic honeycomb bodies electronic gas refuse pyrolysis system according to the embodiment of the present invention
Device structural representation.
Fig. 3 is the pyrolytic reaction system of the heat accumulating type metallic honeycomb bodies electronic gas refuse pyrolysis system of the embodiment of the present invention
Schematic diagram.
Fig. 4 is the half-section diagram of the reactor shell of the embodiment of the present invention.
Wherein, material propulsion spiral 10, material inlet 11, slag charge outlet 12, oil gas vent 13, shaped spiral housing 14, reaction
Device housing 15, exhaust gases passes 16, metallic honeycomb bodies 17, through hole 17-1, indirect heat exchanger 18, cooling tower 19, regenerative gas add
Hot systems 20, A side combusion chamber（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 metallic honeycomb bodies electronic gas refuse pyrolysis system.Enforcement according to the present invention
Example, Fig. 1 is the raw material processing system of heat accumulating type metallic honeycomb bodies electronic gas refuse pyrolysis system according to embodiments of the present invention
With metal recovery system schematic, Fig. 3 is the heat accumulating type metallic honeycomb bodies electronic gas refuse pyrolysis system of the embodiment of the present invention
Pyrolytic reaction system schematic, with reference to shown in Fig. 1 and Fig. 3, this system includes：Raw material processing system, metal recovery system and
Electronic waste pyrolytic reaction system, wherein, described raw material processing system includes breaker and sorting unit, for by electronics rubbish
Rubbish sorts as metal part and organic matter fractions；Described metal recovery system includes acidleach pond and electrolyzer；Shown described electronics
Refuse pyrolysis response system includes：Electronic waste pyrolysis reactor, regenerative gas heating system 20 and cooling separation, its
In, Fig. 2 is the pyrolysis reactor knot of the heat accumulating type metallic honeycomb bodies electronic gas refuse pyrolysis system according to the embodiment of the present invention
Structure schematic diagram, with reference to Fig. 2, described electronic waste pyrolysis reactor includes：Material pyrolization modules and reactor shell 15, described thing
Material pyrolization modules across the both sides of described reactor shell, and described material pyrolization modules two ends exposed described anti-
Answer the outside of device housing, described regenerative gas heating system includes：For producing heat accumulating burner and the use of heat smoke
In the reactor shell exhaust gases passes 16 of conveying heat smoke, also include metallic honeycomb bodies 17, described heat accumulating burner and institute
State reactor shell exhaust gases passes to be connected, described metallic honeycomb bodies be installed on described reactor shell and described shaped spiral housing it
Between exhaust gases passes in, described cooling separation includes：Indirect heat exchanger 18 and for will be cooled for high-temperature gas product
Cooling tower 19 to pyrolysis gas and tar；Wherein, the entrance of described indirect heat exchanger is connected with oil gas vent, indirect heat exchanger
Outlet is connected with the entrance of described cooling tower.
Inventor finds, this system 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；The method that the present invention adopts the pretreatment of raw material front end, by heavy metal removing, using heat accumulating type metal honeybee
As the thermal source of pyrolysis reactor, its fuel is high heating value combustion gas to nest body fuel gas heating system（Natural gas, liquefied petroleum gas etc.）,
Due to employing heat storage type combustion mode, combustion air is preheating to high temperature by regenerator, it is achieved thereby that efficient stable burning.Cigarette
In gas passage, metallic honeycomb bodies are installed, enabling preferably absorb flue gas heat, due to metal high heat conduction ability so that
In whole exhaust gases passes, temperature is more uniform, and shaped spiral housing is by heating evenly it is achieved that material of being back to back, material are connected
Continuous quickly fully pyrolysis and the function such as energy-efficient, and utilize raw material processing system and metal recovery system, it is to avoid
The severe contamination that heavy metal causes, environmental protection.
According to embodiments of the invention, see figures.1.and.2 shown, described metal recovery system, for obtain sorting
Metal part send into described acidleach pond in, be added thereto to strong acid solution, after metal is completely dissolved, remaining without metal portion
After the flue gas drying that electronic waste pyrolytic reaction system described in lease making produces, mix with the aforementioned organic matter fractions obtaining, enter
Described electronic waste pyrolysis reactor carries out pyrolytic reaction, and the strong acid solution rich in metal ion obtaining after dissolving metal is sent into
Carry out cell reaction in described electrolyzer, reclaim metallic copper；Described electronic waste pyrolysis reactor be arranged in reactor shell with
Inside the described confined space that shaped spiral housing 14 is formed, and install between two parties along its length, described regenerative gas heating system
It is arranged in the outside of described reactor shell；Described material pyrolization modules include shaped spiral housing and material propulsion spiral 10, wherein,
Described shaped spiral housing is heat-resisting steel sheel, and thickness is 5-8mm, and from described reactor shell side along along described reactor enclosure body
Chamber extends through the opposite side of described reactor shell, two ends of described shaped spiral housing exposed in described reactor shell
So that forming confined space between described reactor shell and described shaped spiral housing, described confined space constitutes described storage for outside
The reactor shell exhaust gases passes of hot type gas heating system, the high-temperature flue gas that burning produces enter exhaust gases passes, then heat
Amount passes to its internal shaped spiral housing, material is pyrolyzed, the outer wrap of described reactor shell has insulation material, uses
In the radiation loss reducing wall；Described heat accumulating burner is connected with described reactor shell exhaust gases passes, described gold
Belong to honeycomb ceramics to be installed in the exhaust gases passes between described reactor shell and described shaped spiral housing, its pass is hexagon, its
Entire length is shorter than exhaust gases passes, respectively reserves one section of space at described exhaust gases passes two ends；Described pyrolysis gas be rich in flammable and
Reducibility gas, one part is used for described heating system raw material combustion gas, and heating repeats itself utilizes, and another part can be used as also
Primordial Qi.
According to embodiments of the invention, described electrolyzer anode material is graphite, and cathode material is titanium plate, rustless steel
Plate, copper coin and proof gold plate, the voltage range of this electrolyzer is 0.1-3V, and electric current density is 1-5A/dm2, in electrolyzer, temperature is
20-80 DEG C, described strong acid solution is concentrated sulphuric acid or chloroazotic acid.
Described electrolyzer 1 anode material is graphite, and cathode material is copper coin.The voltage range of this electrolyzer is 0.1-
3V, electric current density is 3A/dm2, in electrolyzer, temperature is 35 DEG C.More pure copper, product copper can be reclaimed in electrolyzer 1
Purity close to 100%, reclaim the response rate about 98% of the metallic copper of gained.
Described electrolyzer 2 anode material is graphite, and cathode material is proof gold plate.The voltage range of this electrolyzer is 0.1-
3V, electric current density is 8A/dm2, in electrolyzer, temperature is 70 DEG C.More pure gold, product gold can be reclaimed in electrolyzer 1
Purity close to 100%, reclaim the response rate about 98% of the noble metal gold of gained.
According to embodiments of the invention, described strong acid solution is chloroazotic acid（V concentrated hydrochloric acid：V concentrated nitric acid=3:1）, sulphuric acid, hydrochloric acid,
The strong acid such as nitric acid, hydrogen peroxide or Strong oxdiative solution or both mixture, solution concentration 0.5 ~ 2mol/L.To described rich in gold
Belong to and in the strong acid solution of ion, add alkali solid material, the pH value adjusting solution is to neutral or faintly acid, to mitigate to rear
Continuous workshop section equipment, the corrosiveness of pipeline.
According to embodiments of the invention, with reference to shown in Fig. 3, described indirect heat exchanger and oil gas vent, indirect heat exchanger with
The concrete connected mode of the entrance of described cooling tower is unrestricted, can be welding, riveting, engagement or structure-integrated, according to
Some embodiments of the present invention are it is preferred that the present invention is welding or structure-integrated.According to some embodiments of the present invention, institute
The entrance stating indirect heat exchanger is connected with oil gas vent, and the outlet of indirect heat exchanger is connected with the entrance of described cooling tower, works as heat
Vent one's spleen and discharge from described oil gas vent, enter described indirect heat exchanger, by recirculated water, high-temperature gas is carried out at once cooling
Reason, subsequently into cooling tower, carries out reducing temperature twice cooling by cooling water, the gas after cooling is gone out by the pyrolysis gas of cooling tower
Mouth is discharged.
According to embodiments of the invention, the flue-gas temperature that described electronic waste pyrolytic reaction system produces is 90-140 DEG C；
The concrete material of described shaped spiral housing is unrestricted, as long as being resistant to the material of more than 1000 DEG C of high temperature, the present invention
Using high-temperature refractory steel.
According to embodiments of the invention, described flammable and reducibility gas concrete species unrestricted it is preferred that this
Invent as methane, hydrogen and carbon monoxide.
According to embodiments of the invention, as shown in Fig. 2 on the exposed described shaped spiral housing in described reactor enclosure external body
It is provided with material inlet 11, oil gas vent 13, slag charge outlet 12, and described material inlet is located at described shaped spiral housing upper right
Portion, described oil gas vent is located at described shaped spiral housing upper left quarter, and described slag charge outlet is located at described shaped spiral housing lower left quarter.
After combustion system is stable, described shaped spiral housing is heated to uniform temperature, puts into material in material inlet, described thing
After material enters into propulsion spiral, it is pyrolyzed in forward movement, finish until moving to slag charge outlet and being pyrolyzed, pyrolysis produces
Gas from oil gas mouth discharge, remaining pyrolysis slag charge be discharged from slag charge mouth, described high-temperature gas is through described refrigerated separation system
After system, obtain pyrolysis gas and tar, this pyrolysis gas is rich in that methane, hydrogen, carbon monoxide etc. be flammable and reducibility gas, one
It is allocated as heating system raw material combustion gas, heating itself, another part can be used as also Primordial Qi.
Described material propulsion spiral is located inside described shaped spiral housing, and described material propulsion spiral include helical axis and
Helical blade, described helical blade is fixed on described helical axis and is arranged to be rotated coaxially with described helical axis, described spiral shell
Spin axis stretches out described shaped spiral housing in described material inlet side, and the length of described helical blade is identical with described shaped spiral housing,
Described propulsion spiral outside motor belt motor move under with certain rotational speed, after material enters into described reactor, with temperature
Rising and be gradually pyrolyzed, be advanced to, until being pyrolyzed and finish before outlet, the pyrolysis gas that pyrolysis produces are from institute simultaneously
State oil gas vent to be discharged, the slag charge after pyrolysis exports from described slag charge and discharges.Achieve advance in pyrolysis, thing of being back to back
Material and material are by the continuous function being rapidly and efficiently pyrolyzed.
According to embodiments of the invention, with reference to shown in Fig. 3, described heat accumulating burner includes air line 24, combustion gas
Pipeline 23, flue gas pipeline 25, reversal valve, regenerator and combustor, described air line and described flue gas pipeline respectively with described
Reversal valve connects, and described reversal valve is connected with described regenerator, and described regenerator is connected with described combustor.
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
Burn reaction provide combustion gas, due to using high heating value combustion gas it is only necessary to air single regenerative can stably burn.
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, combustion product flue gas passes through described pipe
The externally discharged environment space of line.
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 just arranges external environment space.
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 metallic honeycomb bodies are 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 metallic honeycomb bodies are 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, the outside portion of heel row space.
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, described combustor is divided into A side combusion chamber（A side exhaust opening）20-1 and 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, and described reversal valve is divided into A side
Reversal valve 22-1, B side reversal valve 22-2.
When opening described regenerative gas heating system, open described A side air line, be then turned on the combustion of described A side
Gas pipeline, the mixed gas of air and combustion gas lighted by starting ignition rifle, and mixed gas are produced after burning in described A side combusion chamber
Raw high-temperature flue gas, high-temperature flue gas enter into the described exhaust gases passes in described reactor enclosure body, high temperature in described exhaust gases passes
Flue gas flows through described metallic honeycomb bodies, and described metallic honeycomb bodies absorb flue gas heat, and to described shaped spiral housing heating, Ran Houjin
Enter to described B side exhaust opening, finally described flue gas is discharged into the external world through described B side regenerator, B side reversal valve and flue gas pipeline
In environment, after the burning certain time of described A side, reversal valve commutation described in both sides, start the burning of B side, now A side is arranged
Cigarette, both sides alternate combustion-smoke discharging.
According to a particular embodiment of the invention, the concrete species of described insulation material is unrestricted, as long as guarantor can be reached
The effect of temperature.In some embodiments of the invention, described insulation material is heat-preservation cotton, and described heat-preservation cotton external is zinc-plated
Iron plate parcel compacting, to ensure heat insulating ability.
According to a particular embodiment of the invention, described metallic honeycomb bodies are located in described exhaust gases passes, using described metal
Honeycomb surface areas are big, preferably absorb flue gas heat, and metal heat-conducting ability is strong so that whole temperature field is more uniform, cigarette
Gas can more uniformly heat described shaped spiral housing.
According to some embodiments of the present invention, the concrete material of the heat storage within described regenerator and species are unrestricted
System, can be using ceramic bead, ceramic honeycomb body and metallic honeycomb bodies, in some embodiments of the invention, and Fig. 4 is that the present invention is real
Apply the half-section diagram of the reactor shell of example, with reference to shown in Fig. 4, described heat storage is metallic honeycomb bodies, and heat conductivility is strong, energy
, so that temperature is more uniform in whole exhaust gases passes, shaped spiral housing is by heating evenly for enough preferably absorption flue gas heat.
In another aspect of the present invention, the invention provides one kind is carried out to electronic waste using foregoing system
The method of pyrolysis.The method may comprise steps of：
First：Feedstock treating：Electronic waste raw material enters described breaker and is crushed, then is sieved through sorting unit
Point, obtain metal and organic matter.
By electronic waste raw material through simply disassembling, send in mechanical crusher and crushed, raw material is crushed to 0-
The electronic waste granule of 30mm, is then sorted, and it is sorted as metal part and organic matter fractions.
Second：Metal recovery：By metal part send into acidleach pond in, after metal is completely dissolved, remaining without metal
Part, after flue gas drying, is mixed with described organic matter fractions, enters response system and carries out pyrolytic reaction.Obtain after dissolving metal
Strong acid solution rich in metal ion send in electrolyzer and carry out cell reaction, reclaim metallic copper.
According to embodiments of the invention, described electrolyzer anode material is graphite, and cathode material is titanium plate, rustless steel
Plate, copper coin and proof gold plate, the voltage range of this electrolyzer is 0.1-3V, and electric current density is 1-5A/dm2, in electrolyzer, temperature is
20-80 DEG C, described strong acid solution is concentrated sulphuric acid or chloroazotic acid.
Described electrolyzer 1 anode material is graphite, and cathode material is copper coin, and the voltage range of this electrolyzer is 0.1-
3V, electric current density is 3A/dm2, in electrolyzer, temperature is 35 DEG C, can reclaim more pure copper, product copper in electrolyzer 1
Purity close to 100%, reclaim the response rate about 98% of the metallic copper of gained.
Described electrolyzer 2 anode material is graphite, and cathode material is proof gold plate, and the voltage range of this electrolyzer is 0.1-
3V, electric current density is 8A/dm2, in electrolyzer, temperature is 70 DEG C, can reclaim more pure gold, product gold in electrolyzer 1
Purity close to 100%, reclaim the response rate about 98% of the noble metal gold of gained.
3rd：Open regenerative gas heating system, its step is as follows：Open described A side air line, be then turned on institute
State A side burning line, the mixed gas of air and combustion gas lighted by starting ignition rifle, mixed gas are in described A side combusion chamber internal combustion
High-temperature flue gas are produced, high-temperature flue gas enter into the described exhaust gases passes in described reactor enclosure body, lead in described flue gas after burning
In road, high-temperature flue gas flow through described metallic honeycomb bodies, and described metallic honeycomb bodies absorb flue gas heat, and add to described shaped spiral housing
Heat, then into described B side exhaust opening, last flue gas discharges through described B side regenerator, B side reversal valve and flue gas pipeline
To in external environment, after the burning certain time of A side, reversal valve commutation described in both sides, start the burning of B side, now A side is arranged
Cigarette, both sides alternate combustion-smoke discharging.
According to embodiments of the invention, described A side is the left side of described reactor shell, and described B side is described reactor
The right side of housing.
According to a particular embodiment of the invention, described metallic honeycomb bodies are located in described exhaust gases passes, using described metal
Honeycomb surface areas are big, preferably absorb flue gas heat, and metal heat-conducting ability is strong so that whole temperature field is more uniform, cigarette
Gas can more uniformly heat described shaped spiral housing.
According to some embodiments of the present invention, the concrete material of the heat storage within described regenerator and species are unrestricted
System, can adopt ceramic bead, ceramic honeycomb body and metallic honeycomb bodies, in some embodiments of the invention, shown in reference Fig. 4,
Described heat storage is metallic honeycomb bodies, and heat conductivility is strong, preferably can absorb flue gas heat so that whole exhaust gases passes interior temperature
Degree is more uniform, and shaped spiral housing is by heating evenly.
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, described combustor is divided into A side combusion chamber（A side exhaust opening）20-1 and 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, and described reversal valve is divided into A side
Reversal valve 22-1, B side reversal valve 22-2.
4th：Material pyrolytic process：After combustion system is stable, described shaped spiral housing is heated to 600-700 DEG C, in material
Material is put in import, after described material enters into described material propulsion spiral, is pyrolyzed in forward movement, until moving to
Described slag charge outlet is pyrolyzed and finishes, and the gas that pyrolysis produces is discharged from described oil gas mouth, and remaining pyrolysis slag charge is from described slag
Material mouth is discharged, and described high-temperature gas, after described cooling separation, obtains pyrolysis gas and tar, and this pyrolysis gas is rich in first
The combustibility such as alkane, hydrogen, carbon monoxide and reducibility gas, a part, as heating system raw material combustion gas, heats itself, another
Part can be used as also Primordial Qi.
According to embodiments of the invention, the exposed described shaped spiral housing in described reactor enclosure external body is provided with material
Import, oil gas vent, slag charge outlet, and described material inlet is located at described shaped spiral housing upper right quarter, described oil gas vent position
In described shaped spiral housing upper left quarter, described slag charge outlet is located at described shaped spiral housing lower left quarter.
According to embodiments of the invention, described shaped spiral housing is heat-resisting steel sheel, and thickness is 5-8mm, and from described reaction
Device housing side extends through the opposite side of described reactor shell along described reactor enclosure intracoelomic cavity, and the two of described shaped spiral housing
The exposed outside in described reactor shell in individual end.
According to embodiments of the invention, with reference to shown in Fig. 1, described material propulsion spiral is located 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 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, and described propulsion spiral is under outside motor belt motor is moved with certain rotational speed, thing
After material enters into described reactor, gradually it is pyrolyzed with the rising of temperature, is advanced to simultaneously, until quilt before outlet
Pyrolysis finishes, and the pyrolysis gas that pyrolysis produces are discharged from described oil gas vent, and the slag charge after pyrolysis exports row from described slag charge
Go out.
Inventor finds, this system 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；The method that the present invention adopts the pretreatment of raw material front end, by heavy metal removing, using heat accumulating type metal honeybee
As the thermal source of pyrolysis reactor, its fuel is high heating value combustion gas to nest body fuel gas heating system（Natural gas, liquefied petroleum gas etc.）,
Due to employing heat storage type combustion mode, combustion air is preheating to high temperature by regenerator, it is achieved thereby that efficient stable burning.Cigarette
In gas passage, metallic honeycomb bodies are installed, enabling preferably absorb flue gas heat, due to metal high heat conduction ability so that
In whole exhaust gases passes, temperature is more uniform, and shaped spiral housing is by heating evenly it is achieved that material of being back to back, material are connected
Continuous quickly fully pyrolysis and the function such as energy-efficient, and utilize raw material processing system and metal recovery system, it is to avoid
The severe contamination that heavy metal causes, environmental protection.
Embodiment one：
Heat accumulating type metallic honeycomb bodies fuel 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（Circuit board, electric wire, keyboard etc.）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 material of being back to back.
In pyrolytic process, constant temperature is maintained at 600 DEG C -700 DEG C, and thermal source stability is fine.
To pyrolysis after solid residue detect, find main component be the carbon that can not be pyrolyzed, do not contain resin and
The composition that glass fibre etc. can be pyrolyzed, pyrolysis effect 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 |
It can be seen that, the flue gas of generation all reaches discharging standards.
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 metallic honeycomb bodies electronic gas refuse pyrolysis system is it is characterised in that include：Raw material processing system,
Metal recovery system and electronic waste pyrolytic reaction system, wherein,
Described raw material processing system includes breaker and sorting unit, for sorting electronic waste for metal part and organic
Matter part；
Described metal recovery system includes acidleach pond and electrolyzer, and the metal part for obtaining sorting sends into described acidleach pond
In, it is added thereto to strong acid solution, after metal is completely dissolved, remaining anti-through the pyrolysis of described electronic waste without metal part
After answering the flue gas drying that system produces, mix with described organic matter fractions, enter described electronic waste pyrolytic reaction system and enter
Row pyrolytic reaction, the strong acid solution rich in metal ion obtaining after dissolving metal is sent into and is carried out electrolysis in described electrolyzer instead
Should, reclaim metallic copper；
Described electronic waste pyrolytic reaction system includes：Electronic waste pyrolysis reactor, regenerative gas heating system and cooling
Piece-rate 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 material 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；
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, also include metallic honeycomb bodies, described heat accumulating burner and described reactor shell flue gas
Passage is connected, and described metallic honeycomb bodies are installed in the exhaust gases passes between described reactor shell and described shaped spiral housing,
Its pass is hexagon, and its entire length is shorter than exhaust gases passes, respectively reserves one section of space at described exhaust gases passes two ends；
Described cooling separation includes：Indirect heat exchanger and for obtaining pyrolysis gas and tar by cooled for high-temperature gas product
Cooling tower；Wherein, the entrance of described indirect heat exchanger is connected with oil gas vent, the outlet of indirect heat exchanger and described cooling tower
Entrance be connected.
2. heat accumulating type metallic honeycomb bodies electronic gas refuse pyrolysis system according to claim 1 is it is characterised in that exposed
Material inlet, oil gas vent, slag charge outlet are provided with the described shaped spiral housing of described reactor enclosure external body, and described
Material inlet is located at described shaped spiral housing upper right quarter, and described oil gas vent is located at described shaped spiral housing upper left quarter, and described slag charge goes out
Mouth is located at described shaped spiral housing lower left quarter；
Described material propulsion spiral is located inside described shaped spiral housing, and described material propulsion spiral includes helical axis and spiral
Blade, described helical blade is fixed on described helical axis and is arranged to be rotated coaxially with described helical axis, described helical axis
Stretch out described shaped spiral housing in described material inlet side, the length of described helical blade is identical with described shaped spiral housing.
3. heat accumulating type metallic honeycomb bodies electronic gas refuse pyrolysis system according to claim 1 it is characterised in that
Described heat accumulating burner includes air line, burning line, flue gas pipeline, reversal valve, regenerator and combustor, institute
State air line and described flue gas pipeline is connected with described reversal valve respectively, described reversal valve is connected with described regenerator, described
Regenerator is connected with described combustor.
4. heat accumulating type metallic honeycomb bodies electronic gas refuse pyrolysis system according to claim 3 is it is characterised in that described
Heat accumulating burner includes 2 combustor, 2 regenerator and 2 reversal valves, and described combustor, regenerator, reversal valve divide
It is not arranged in the both sides of described reactor shell, in normal work, the both sides of described heat storage type combustion can alternately burn-
Smoke discharging.
5. the heat accumulating type metallic honeycomb bodies electronic gas refuse pyrolysis system according to any one of claim 1-4, it is special
Levy and be, described shaped spiral housing is heat-resisting steel sheel, thickness is 5-8mm；Described electrolyzer anode material is graphite, negative electrode material
Expect for titanium plate, corrosion resistant plate, copper coin and proof gold plate, the voltage range of this electrolyzer is 0.1-3V, and electric current density is 1-5A/dm2,
In electrolyzer, temperature is 20-80 DEG C, and the flue-gas temperature that described electronic waste pyrolytic reaction system produces is 90-140 DEG C, described strong
Acid solution is concentrated sulphuric acid or chloroazotic acid.
6. the heat accumulating type metallic honeycomb bodies electronic gas refuse pyrolysis system according to any one of claim 1-4, it is special
Levy and be, the outer wrap of described reactor shell has insulation material, described insulation material is heat-preservation cotton, and outside described heat-preservation cotton
Wrapped up with galvanized iron sheet.
7. heat accumulating type metallic honeycomb bodies electronic gas refuse pyrolysis system according to claim 1 is it is characterised in that described
Metallic honeycomb bodies are located in described exhaust gases passes, big using described metal beehive body surface area, preferably absorb flue gas heat, and
Metal heat-conducting ability is strong so that whole temperature field is more uniform, and flue gas can more uniformly heat described shaped spiral housing.
8. heat accumulating type metallic honeycomb bodies electronic gas refuse pyrolysis system according to claim 1 is it is characterised in that described
Pyrolysis gas are rich in combustibility and the reducibility gas of methane, hydrogen and carbon monoxide, and it is former that one part is used for described heating system
Material combustion gas, heating repeats itself utilizes, and another part can be used as also Primordial Qi.
9. the heat accumulating type metallic honeycomb bodies electronic gas refuse pyrolysis system described in a kind of utilization claim 1-8 is to electronic waste
The method being pyrolyzed is it is characterised in that comprise the following steps：
First：Feedstock treating：Electronic waste raw material enters described breaker and is crushed, then is sieved through sorting unit
Point, obtain metal and organic matter；
Second：Metal recovery：By metal part send into acidleach pond in, after metal is completely dissolved, remaining without metal part
After flue gas drying, mix with described organic matter fractions, enter response system and carry out pyrolytic reaction, the richness obtaining after dissolving metal
The strong acid solution of metal ion is sent in electrolyzer and is carried out cell reaction, reclaims metallic copper；
3rd：Open regenerative gas heating system, its step is as follows：Open A side air line, be then turned on A side Gas Pipe
Line, the mixed gas of air and combustion gas lighted by starting ignition rifle, and mixed gas produce high temperature cigarette after burning in A side combusion chamber
Gas, high-temperature flue gas enter into the exhaust gases passes in reactor enclosure body, and in exhaust gases passes, high-temperature flue gas flow through metallic honeycomb bodies, institute
State metallic honeycomb bodies and absorb flue gas heat, and to shaped spiral housing heating, then into B side exhaust opening, last flue gas is through B side
Regenerator, B side reversal valve and flue gas pipeline are discharged in external environment, and after the burning certain time of A side, both sides reversal valve changes
To, the burning of beginning B side, now discharged fume in A side, both sides alternate combustion-smoke discharging；
4th：Material pyrolytic process：After combustion system is stable, described shaped spiral housing is heated to uniform temperature, in material inlet
Put into material, after described material enters into propulsion spiral, be pyrolyzed in forward movement, until it is hot to move to slag charge outlet
Solution finishes, and the high-temperature gas that pyrolysis produces is discharged from oil gas vent, and remaining pyrolysis slag charge is discharged from slag charge outlet, described height
Wet body, after described cooling separation, obtains pyrolysis gas and tar, and this pyrolysis gas is rich in methane, hydrogen, carbon monoxide
Combustibility and reducibility gas, a part, as heating system raw material combustion gas, heats itself, and another part can be used as also Primordial Qi.
10. method according to claim 9 it is characterised in that
In described step 3, 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 4, described shaped spiral housing is heated to 600-700 DEG C.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112745867A (en) * | 2021-01-21 | 2021-05-04 | 华中科技大学 | Heat accumulation roller pyrolysis reactor |
| CN112920820A (en) * | 2021-02-04 | 2021-06-08 | 中国五环工程有限公司 | Solid waste degassing pyrolysis device and melting gasification system comprising same |
| CN117862179A (en) * | 2023-01-03 | 2024-04-12 | 深圳绿源智谷科技环境有限公司 | Industrial solid waste treatment system and solid waste treatment method |
-
2016
- 2016-12-12 CN CN201611136938.1A patent/CN106479529A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112745867A (en) * | 2021-01-21 | 2021-05-04 | 华中科技大学 | Heat accumulation roller pyrolysis reactor |
| CN112920820A (en) * | 2021-02-04 | 2021-06-08 | 中国五环工程有限公司 | Solid waste degassing pyrolysis device and melting gasification system comprising same |
| CN117862179A (en) * | 2023-01-03 | 2024-04-12 | 深圳绿源智谷科技环境有限公司 | Industrial solid waste treatment system and solid waste treatment method |
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