CN106705058A - Spiral heat accumulation type gas electronic waste pyrolysis system - Google Patents

Spiral heat accumulation type gas electronic waste pyrolysis system Download PDF

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Publication number
CN106705058A
CN106705058A CN201611136986.0A CN201611136986A CN106705058A CN 106705058 A CN106705058 A CN 106705058A CN 201611136986 A CN201611136986 A CN 201611136986A CN 106705058 A CN106705058 A CN 106705058A
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China
Prior art keywords
gas
electronic waste
spiral
pyrolysis
sides
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CN201611136986.0A
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CN106705058B (en
Inventor
王宁
郭科宏
王志军
石为华
王东方
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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    • 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
    • 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
    • F23G5/02Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment
    • F23G5/033Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment comminuting or crushing
    • 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
    • F23G5/04Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment drying

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Processing Of Solid Wastes (AREA)
  • Gasification And Melting Of Waste (AREA)

Abstract

The invention relates to the technical field of waste pyrolysis, in particular to a spiral heat accumulation type gas electronic waste pyrolysis system. The system comprises a raw material treatment system, a metal recovery system and an electronic waste pyrolysis reaction system, wherein the raw material treatment system comprises a crushing device and a sorting device; the metal recovery system comprises an acid leaching pool and an electrolytic tank; the electronic waste pyrolysis reaction system comprises an electronic waste pyrolysis reactor, a heat accumulation type gas heating system and a cooling separation system, and the electronic waste pyrolysis reactor comprises a material pyrolysis assembly and a reactor casing; the heat accumulation type gas heating system comprises heat accumulation type combustion apparatus, a flue gas channel and a flue screw; the cooling separation system comprises an indirect heat exchanger and a cooling tower. The system has the advantages that the pyrolysis efficiency is high, continuous feeding and discharging are realized, electronic waste is divided into organic matter and a metal part to be treated and recovered respectively, energy-saving and environment-friendly effects are remarkable and the like.

Description

A kind of spiral regenerative gas electronic waste pyrolysis system
Technical field
The present invention relates to refuse pyrolysis technical field, system is pyrolyzed more particularly, to a kind of spiral regenerative gas electronic waste 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 for 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.Processing method currently used for electronic circuit board is main by mechanical-physical Method, metallurgical extraction method, biological treatment and pyrolysismethod etc., wherein mechanical approach, metallurgical extraction method, biological treatment etc. are main Lay particular emphasis on the recovery of metal in circuit board, using pyrolysismethod can not only be in recovery train plate metal and also line can be realized The resource of the Non-metallic components such as resin, glass fibre in the plate of road.Conventional pyrolytic mode can not realize continuous feeding and discharging, and pyrolysis Complex process, pyrolysis efficiency are low, energy consumption is higher.
Thermogravimetric test equipment being used existing electronic waste pyrolysis reactor, the device for using is tested for fixed-bed pyrolysis more Device, the device mainly includes resistance furnace, pyrolysis reactor, nitrogen cylinder and gas collection 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 into pyrolysis reactor.Pyrolysis is real When testing, the pyrolysis reactor equipped with material is put into resistance furnace first, then opening nitrogen cylinder is passed through nitrogen and starts to purge, After purging enough time, resistance furnace is powered and produces temperature field, and material just starts pyrolysis, and airbag starts to collect gas, waits gas When body is not regenerated, 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, can not realize that material is back to back, accordingly Material continuous pyrolysis can not be realized, and the point of most critical of the present invention is exactly, using the reactor of screw propulsion mode, to realize continuous Turnover material, continuous pyrolysis, so that pyrolytic process is more simple and efficient, and this kind of material of being back to back pyrolytic process more Easily realize industrialization.Therefore, how to design a kind of efficient, system architecture and all simple system of technological process turns into this area urgently The problem that need to be solved.
The content of the invention
The present invention is in view of the shortcomings of the prior art, it is proposed that a kind of spiral regenerative gas electronic waste pyrolysis system.Should System has pyrolysis efficiency high, continuous feeding and discharging and electronic waste is divided into organic matter and metal part processes recovery respectively, The advantages of thermal source, pressure, atmosphere in device are stablized and energy-saving effect is notable.
In order to solve the above technical problems, the technical solution adopted by the present invention is:
The present invention proposes a kind of spiral regenerative gas electronic waste pyrolysis system.Embodiments in accordance with the present invention, the system Including:Raw material processing system, metal recovery system and electronic waste pyrolytic reaction system, wherein, the raw material processing system bag Breaker and sorting unit are included, for being metal part and organic matter fractions by electronic waste sorting;The metal recovery system System includes acidleach pond and electrolytic cell, and the metal part for sorting to be obtained is sent into the acidleach pond, is added thereto to strong acid Solution, after metal is completely dissolved, the remaining flue gas produced through the electronic waste pyrolytic reaction system without metal part After drying, mix with described organic matter fractions, pyrolytic reaction is carried out into the electronic waste pyrolytic reaction system, metal is molten The strong acid solution rich in metal ion obtained after solution carries out cell reaction in sending into the electrolytic cell, reclaims metallic copper;It is described Electronic waste pyrolytic reaction system includes:Electronic waste pyrolysis reactor, regenerative gas heating system and cooling separation, Wherein, the electronic waste pyrolysis reactor includes:Material pyrolization modules and reactor shell, the material pyrolization modules across The both sides of the reactor shell, and two ends of the material pyrolization modules are exposed in the outer of the reactor shell Portion, the material pyrolization modules include shaped spiral housing and material propulsion spiral, wherein, the shaped spiral housing is from the reactor enclosure Body side extends through the opposite side of the reactor shell, two ends of the shaped spiral housing along the reactor enclosure intracoelomic cavity Hold the exposed outside in the reactor shell so that form confined air between the reactor shell and the shaped spiral housing Between, the confined space constitutes the reactor shell exhaust gases passes of the regenerative gas heating system;The regenerative gas Heating system includes:For produce heat smoke heat accumulating burner and for convey heat smoke reactor shell flue gas lead to Road, also including the flue spiral for changing flue gas flow direction, the heat accumulating burner is logical with the reactor shell flue gas Road is connected, and the flue spiral is installed in the exhaust gases passes between the reactor shell and the shaped spiral housing, It arranges along the shaped spiral housing length direction, and with the reactor shell equal length;The cooling separation includes:Between Connect heat exchanger and the cooling tower for high-temperature gas product to be obtained pyrolysis gas and tar through cooling;Wherein, the indirect heat exchange The entrance of device is connected with oil gas vent.
Inventor has found that the system according to embodiments of the present invention is capable of achieving material of being back to back, and material is in pyrolytic reaction It is tiled in device, is contacted with shaped spiral housing fully, high-temperature spiral housing is heated by radiation and heat conduction two ways to material, because This material fully can be quickly pyrolyzed, and material is pushed into spiral in pyrolytic process and gradually pushes ahead, and realizes side The function of pyrolysis side propulsion;The present invention, by heavy metal removing, is fired using the method for raw material front end pretreatment using spiral heat accumulating type Gas heating system as pyrolysis reactor thermal source, its fuel be high heating value combustion gas(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 burns.Exhaust gases passes Flue spiral is inside installed so that flue gas spiral rotating flows, flow field is more uniform, shaped spiral housing is real by heating evenly Show material of being back to back, material by continuous quick fully pyrolysis and the function such as energy-efficient, and utilize Feedstock treating System and metal recovery system, it is to avoid the severe contamination that heavy metal is caused, environmental protection.
Embodiments in accordance with the present invention, it is exposed to be provided with material on the shaped spiral housing of the reactor enclosure external body Import, oil gas vent, slag charge outlet, and the material inlet are located at the shaped spiral housing upper right quarter, the oil gas vent position In the shaped spiral housing upper left quarter, the slag charge outlet is located at the shaped spiral housing lower left quarter;The material propulsion spiral is located at Inside the shaped spiral housing, and material propulsion spiral includes helical axis and helical blade, and the helical blade is fixed on On the helical axis and it is arranged to be rotated coaxially with the helical axis, the helical axis stretches out in the material inlet side The shaped spiral housing, the length of the helical blade is identical with the shaped spiral housing.
Embodiments in accordance with the present invention, the heat accumulating burner include air line, burning line, flue gas pipeline, Reversal valve, regenerator and combustion chamber, the air line and the flue gas pipeline are connected with the reversal valve respectively, the commutation Valve is connected with the regenerator, and the regenerator is connected with the combustion chamber.
Embodiments in accordance with the present invention, the heat accumulating burner is changed including 2 combustion chambers, 2 regenerator and 2 To valve, the combustion chamber, regenerator, reversal valve are respectively arranged in the both sides of the reactor shell, described in normal work The both sides of heat storage type combustion can alternately burn-smoke discharging.
Embodiments in accordance with the present invention, the shaped spiral housing is heat-resisting steel sheel, and thickness is 5-8mm, in the electrolytic cell Anode material is graphite, and cathode material is titanium plate, stainless steel plate, copper coin and proof gold plate, and the voltage range of the electrolytic cell is 0.1- 3V, current density is 1-5A/dm2, temperature is 20-80 DEG C in electrolytic cell, the cigarette that the electronic waste pyrolytic reaction system is produced Temperature degree is 90-140 DEG C, and the strong acid solution is the concentrated sulfuric acid or chloroazotic acid.
Embodiments in accordance with the present invention, the outer wrap of the reactor shell has insulation material, and the insulation material is Heat-preservation cotton, and heat-preservation cotton external application galvanized iron sheet parcel.
Embodiments in accordance with the present invention, the flue spiral is located in the exhaust gases passes, for changing flue gas flow direction, is allowed Flue gas flows along the flue spiral rotating so that flue gas can more uniformly heat the shaped spiral housing.
Embodiments in accordance with the present invention, combustibility and reproducibility of the pyrolysis gas rich in methane, hydrogen and carbon monoxide Gas, one part is used for the heating system raw material combustion gas, and heating repeats itself is utilized, and another part can be used as also Primordial Qi.
In another aspect of the present invention, electronic waste is carried out using foregoing system the invention provides one kind The method of pyrolysis.Embodiments in accordance with the present invention, the method is comprised the following steps:First:Feedstock treating:Electronic waste raw material enters Enter the breaker to be crushed, then sieved by sorting unit, obtain metal and organic matter;Second:Metal recovery: By in metal part feeding acidleach pond, after metal is completely dissolved, it is remaining without metal part through flue gas drying after, it is and described Organic matter fractions mix, and pyrolytic reaction is carried out into reaction system, and the strong acid rich in metal ion obtained after dissolving metal is molten Cell reaction is carried out in liquid feeding electrolytic cell, metallic copper is reclaimed;3rd:Regenerative gas heating system is opened, its step is as follows: A sides air line is opened, A sides burning line is then turned on, starting ignition rifle lights the mixed gas of air and combustion gas, gaseous mixture Body produces high-temperature flue gas, the exhaust gases passes that high-temperature flue gas are entered into reactor enclosure body, in cigarette after burning in A side combusion chambers High-temperature flue gas flow and are heated to the shaped spiral housing along flue spiral rotating in gas passage, then into B sides exhaust opening, most Flue gas is discharged into external environment by B sides regenerator, B sides reversal valve and flue gas pipeline afterwards, after A sides burning certain hour, Both sides reversal valve commutation, starts the burning of B sides, and now A sides are discharged fume, both sides alternate combustion-smoke discharging;4th, material pyrolysis Process:After combustion system stabilization, shaped spiral housing is heated to uniform temperature, can be put into material in material inlet, and the material enters Enter to the back forward movement side of propulsion spiral and be pyrolyzed, finished until moving to slag charge outlet and being pyrolyzed, be pyrolyzed the gas for producing Body is discharged from oil gas vent, and remaining pyrolysis slag charge is discharged from slag charge outlet, and the high-temperature gas is through the refrigerated separation system After system, pyrolysis gas and tar are obtained, the pyrolysis gas are rich in methane, hydrogen, the combustibility of carbon monoxide and reducibility gas, one It is allocated as being heating system raw material combustion gas, heats itself, another part can be used as also Primordial Qi.
Embodiments in accordance with the present invention, in the step 3, the A sides are the left side of the reactor shell, the B sides It is the right side of the reactor shell;In the step 4, the shaped spiral housing is heated to 600-700 DEG C.
The present invention at least has the advantages that:
Using the spiral heat accumulating type electronics refuse pyrolysis system, material of being back to back, material quilt in pyrolysis reactor are capable of achieving Tiling, is contacted fully with shaped spiral housing, and high-temperature spiral housing is heated by radiation and heat conduction two ways to material, therefore material Fully can be quickly pyrolyzed, and material is pushed into spiral in pyrolytic process and gradually pushes ahead, and realizes in pyrolysis The function of propulsion;The present invention, by heavy metal removing, is heated using the method for raw material front end pretreatment using spiral regenerative gas System as pyrolysis reactor thermal source, its fuel be high heating value combustion gas(Natural gas, liquefied petroleum gas etc.), as a result of storage Hot type combustion system, combustion air is preheating to high temperature by regenerator, it is achieved thereby that efficient stable burns.Installed in exhaust gases passes There is flue spiral so that flue gas spiral rotating flows, flow field is more uniform, and shaped spiral housing is by heating evenly, the company of realizing Continuous turnover material, material by continuous quick fully pyrolysis and the function such as energy-efficient, and using raw material processing system and Metal recovery system, it is to avoid the severe contamination that heavy metal is caused, environmental protection.
Brief description of the drawings
Fig. 1 be spiral regenerative gas electronic waste pyrolysis system according to embodiments of the present invention raw material processing system and Metal recovery system schematic.
Fig. 2 is the pyrolysis reactor structure of spiral regenerative gas electronic waste pyrolysis system according to embodiments of the present invention Schematic diagram.
Fig. 3 is that the pyrolytic reaction system of spiral regenerative gas electronic waste pyrolysis system according to embodiments of the present invention is shown It is intended to.
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, flue spiral 17, through hole 17-1, indirect heat exchanger 18, cooling tower 19, regenerative gas heating System 20, A side combusion chambers(A sides exhaust opening)20-1, B side combusion chamber(B sides exhaust opening)20-2, A side regenerator 21-1, B side store Hot cell 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, without being understood that It is limitation of the present invention.
The present invention proposes a kind of spiral regenerative gas electronic waste pyrolysis system.Embodiments in accordance with the present invention, Fig. 1 It is raw material processing system and the metal recovery system of spiral regenerative gas electronic waste pyrolysis system according to embodiments of the present invention System schematic diagram, Fig. 3 is the pyrolytic reaction system of spiral regenerative gas electronic waste pyrolysis system according to embodiments of the present invention Schematic diagram, shown in reference picture 1 and Fig. 3, the system includes:The pyrolysis of raw material processing system, metal recovery system and electronic waste is anti- System is answered, wherein, the raw material processing system includes breaker and sorting unit, for being metal portion by electronic waste sorting Divide and organic matter fractions;The metal recovery system includes acidleach pond and electrolytic cell;The electronic waste pyrolytic reaction system bag Include:Electronic waste pyrolysis reactor, regenerative gas heating system 20 and cooling separation, wherein, Fig. 2 is according to the present invention The pyrolysis reactor structural representation of the spiral regenerative gas electronic waste pyrolysis system of embodiment, it is described shown in reference picture 2 Electronic waste pyrolysis reactor includes:Material pyrolization modules and reactor shell 15, the material pyrolization modules are across described anti- Answer the both sides of device housing, and the material pyrolization modules the exposed outside in the reactor shell in two ends;It is described Regenerative gas heating system includes:Heat accumulating burner and reactor for conveying heat smoke for producing heat smoke Housing exhaust gases passes 16, also including the flue spiral 17 for changing flue gas flow direction, the heat accumulating burner is anti-with described Device housing exhaust gases passes are answered to be connected, the flue spiral is installed on the institute between the reactor shell and the shaped spiral housing State in exhaust gases passes, it is arranged along the shaped spiral housing length direction, and with the reactor shell equal length;The cooling point Include from system:Indirect heat exchanger 18 and the cooling tower 19 for high-temperature gas product to be obtained pyrolysis gas and tar through cooling; Wherein, the entrance of the indirect heat exchanger is connected with oil gas vent, the entrance phase of the outlet of indirect heat exchanger and the cooling tower Even.
Inventor has found that the system according to embodiments of the present invention is capable of achieving material of being back to back, and material is in pyrolytic reaction It is tiled in device, is contacted with shaped spiral housing fully, high-temperature spiral housing is heated by radiation and heat conduction two ways to material, because This material fully can be quickly pyrolyzed, and material is pushed into spiral in pyrolytic process and gradually pushes ahead, and realizes side The function of pyrolysis side propulsion;The present invention, by heavy metal removing, is fired using the method for raw material front end pretreatment using spiral heat accumulating type Gas heating system as pyrolysis reactor thermal source, its fuel be high heating value combustion gas(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 burns.Exhaust gases passes Flue spiral is inside installed so that flue gas spiral rotating flows, flow field is more uniform, shaped spiral housing is real by heating evenly Show material of being back to back, material by continuous quick fully pyrolysis and the function such as energy-efficient, and utilize Feedstock treating System and metal recovery system, it is to avoid the severe contamination that heavy metal is caused, environmental protection.
Embodiments in accordance with the present invention, shown referring to Figures 1 and 2, the metal recovery system, for will sort what is obtained Metal part is sent into the acidleach pond, is added thereto to strong acid solution, remaining without metal portion after metal is completely dissolved After the flue gas drying that electronic waste pyrolytic reaction system described in lease making is produced, mix with the foregoing organic matter fractions for obtaining, enter The electronic waste pyrolysis reactor carries out pyrolytic reaction, the feeding of the strong acid solution rich in metal ion obtained after dissolving metal Cell reaction is carried out in the electrolytic cell, metallic copper is reclaimed;The electronic waste pyrolysis reactor be arranged in reactor shell with Inside the confined space that shaped spiral housing 14 is formed, and installation placed in the middle, the regenerative gas heating system along its length It is arranged in the outside of the reactor shell;The material pyrolization modules include shaped spiral housing and material propulsion spiral, wherein, institute State shaped spiral housing and extend through the another of the reactor shell along the reactor enclosure intracoelomic cavity from the reactor shell side Side, the exposed outside in the reactor shell in two ends of the shaped spiral housing so that the reactor shell and institute State and formed between shaped spiral housing confined space, the confined space constitutes the reactor shell of the regenerative gas heating system Exhaust gases passes, the high-temperature flue gas for producing that burn enter exhaust gases passes, its internal shaped spiral housing are then transferred heat to, to thing Material is pyrolyzed, and the outer wrap of the reactor shell has insulation material, the radiation loss for reducing wall;The pyrolysis Rich in flammable and reducibility gas, one part is used for the heating system raw material combustion gas to gas, and heating repeats itself is utilized, separately A part can be used as also Primordial Qi.
Embodiments in accordance with the present invention, the electrolytic cell anode material is graphite, and cathode material is titanium plate, stainless steel Plate, copper coin and proof gold plate, the voltage range of the electrolytic cell is 0.1-3V, and current density is 1-5A/dm2, temperature is in electrolytic cell 20-80 DEG C, the strong acid solution is the concentrated sulfuric acid or chloroazotic acid.
The anode material of the electrolytic cell 1 is graphite, and cathode material is copper coin.The voltage range of the electrolytic cell is 0.1- 3V, current density is 3A/dm2, and temperature is 35 DEG C in electrolytic cell.More pure copper, product copper can be reclaimed in electrolytic cell 1 Purity close to 100%, the rate of recovery about 98% of the metallic copper obtained by recovery.
The anode material of the electrolytic cell 2 is graphite, and cathode material is proof gold plate.The voltage range of the electrolytic cell is 0.1- 3V, current density is 8A/dm2, and temperature is 70 DEG C in electrolytic cell.More pure gold, product gold can be reclaimed in electrolytic cell 1 Purity close to 100%, the rate of recovery about 98% of the noble metal gold obtained by recovery.
Embodiments in accordance with the present invention, the strong acid solution is chloroazotic acid(V concentrated hydrochloric acids:V concentrated nitric acid=3:1), sulfuric acid, hydrochloric acid, The mixture of the strong acid such as nitric acid, hydrogen peroxide or Strong oxdiative solution or both, 0.5 ~ 2mol/L of solution concentration.To described rich in gold Belong to addition alkali solid material in the strong acid solution of ion, the pH value of solution is adjusted to neutral or faintly acid, to mitigate to rear Continuous workshop section equipment, the corrosiveness of pipeline.
Embodiments in accordance with the present invention, shown in reference picture 3, the indirect heat exchanger and oil gas vent, indirect heat exchanger with The specific connected mode of the entrance of the cooling tower is unrestricted, can be welding, rivets, engages or structure-integrated, according to Some embodiments of the present invention, it is preferred that the present invention is welding or structure-integrated.Some embodiments of the invention, institute The entrance for stating indirect heat exchanger is connected with oil gas vent, and the outlet of indirect heat exchanger is connected with the entrance of the cooling tower, works as heat Vent one's spleen from oil gas vent discharge, into the indirect heat exchanger, high-temperature gas is carried out at once cooling by recirculated water Reason, subsequently into cooling tower, reducing temperature twice cooling is carried out by cooling water, and the gas after cooling is gone out by the pyrolysis gas of cooling tower Mouth discharge.
Embodiments in accordance with the present invention, the specific species of the flue spiral is unrestricted, in some implementations of the invention In example, shown in reference picture 3, the present invention is preferably deflection plate 17, for changing flue gas flow direction so that flue gas is along flue spiral rotating Flowing so that the flow of flue gas in the whole exhaust gases passes is more uniform, and the shaped spiral housing can be heated properly.
Embodiments in accordance with the present invention, the flue-gas temperature that the electronic waste pyrolytic reaction system is produced is 90-140 DEG C; The specific material of the 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.
Embodiments in accordance with the present invention, the specific species of the flammable and reducibility gas is unrestricted, it is preferred that this Invent is methane, hydrogen and carbon monoxide.
Embodiments in accordance with the present invention, as shown in Fig. 2 exposed on the shaped spiral housing of the reactor enclosure external body Material inlet 11, oil gas vent 13, slag charge outlet 12 are provided with, and the material inlet is located at the shaped spiral housing upper right Portion, the oil gas vent is located at the shaped spiral housing upper left quarter, and the slag charge outlet is located at the shaped spiral housing lower left quarter.
After etc. combustion system stabilization, the shaped spiral housing is heated to uniform temperature, now just can be in the material inlet Material is put into, after material enters into the material propulsion spiral, is pyrolyzed when moving forward, until move to the slag charge going out Mouth is pyrolyzed and finishes, and is pyrolyzed the gas for producing by from oil gas vent discharge, and remaining pyrolysis slag charge is exported from the slag charge Discharge, after the high-temperature gas is through the cooling separation, obtain pyrolysis gas and tar, the pyrolysis gas rich in methane, hydrogen, The combustibility such as carbon monoxide and reducibility gas, a part heat itself as heating system raw material combustion gas, and another part can use Make also Primordial Qi.
Embodiments in accordance with the present invention, shown in reference picture 2, the material propulsion spiral is located inside the shaped spiral housing, And the material propulsion spiral includes helical axis and helical blade, and the helical blade is fixed on the helical axis and is set Being set to can rotate coaxially with the helical axis, and the helical axis stretches out the shaped spiral housing in the material inlet side, described The length of helical blade is identical with the shaped spiral housing, described to advance spiral in the case where outside motor belt motor is dynamic with certain rotational speed, Material is entered into after the reactor, is gradually pyrolyzed with the rising of temperature, while be advanced to, until before outlet It is pyrolyzed and finishes, be pyrolyzed the pyrolysis gas for producing and be discharged from the oil gas vent, the slag charge after pyrolysis is exported from the slag charge Discharge.Realize while pyrolysis while advance, the function that be back to back material and material are continuously rapidly and efficiently pyrolyzed.
Embodiments in accordance with the present invention, shown in reference picture 3, the heat accumulating burner includes air line 24, combustion gas Pipeline 23, flue gas pipeline 25, reversal valve, regenerator and combustion chamber, the air line and the flue gas pipeline respectively with it is described Reversal valve is connected, and the reversal valve is connected with the regenerator, and the regenerator is connected with the combustion chamber.
Embodiments in accordance with the present invention, the specific species of the air line is unrestricted, as long as can be provided for fuel Combustion air, air, first by the reversal valve, is absorbed heat by the air line then into the regenerator, High temperature is heated to the checker port, the combustion chamber is entered back into and is burnt with combustion gas mixing.
Embodiments in accordance with the present invention, the specific species of the burning line is unrestricted, as long as combustion reaction can be Combustion gas is provided, due to using high heating value combustion gas, it is only necessary to which air single regenerative can stabilization burning.
Embodiments in accordance with the present invention, the specific material of flue gas pipeline and species are unrestricted, as long as can be by flue gas The reactor is discharged, flue gas pipeline of the present invention is flue gas exhausting pipe line, and combustion product flue gas passes through the pipe The externally discharged environment space of line.
Embodiments in accordance with the present invention, the reversal valve is used for air-flue gas commutation, when side is in fired state, Regenerator is connected by the reversal valve with the air line, and then provides high temperature combustion air to burning;When side is in During smoke evacuation state, the reversal valve commutation, now the regenerator is just connected by the reversal valve with the flue gas pipeline, cigarette Gas just arranges external environment space.
Embodiments in accordance with the present invention, the regenerator is the medium of air-flue gas heat exchange, when side is in fired state When, air enters the regenerator from the regenerator bottom, and the deflection plate is gradually cooled as it passes through the cooler;When side is in smoke evacuation state When, flue gas enters the regenerator from the regenerator top, and the deflection plate is gradually heated by the sonochemical activity.
Embodiments in accordance with the present invention, the combustion chamber is both the combustion space of combustion gas, is again the outlet of flue gas, as During for combustion space, first in the burning Indoor Combustion, the high-temperature flue gas of generation enter back into the reactor for combustion gas and air Enclosure interior, burning is carried out in the combustion chamber, it is to avoid thermal-flame directly burns the shaped spiral housing;Arranged when as flue gas During discharge port, then flue gas sequentially enters the regenerator, reversal valve, the outside portion space of most heel row from discharging herein.
Embodiments in accordance with the present invention, the heat accumulating burner is changed including 2 combustion chambers, 2 regenerator and 2 To valve, the combustion chamber, regenerator, reversal valve are respectively arranged in the both sides of the reactor shell, described in normal work The both sides of heat storage type combustion can alternately burn-smoke discharging.
Embodiments in accordance with the present invention, the combustion chamber is divided into A side combusion chambers(A sides exhaust opening)20-1 and B side combusion chambers (B sides exhaust opening)20-2, the heat accumulating type is divided into A sides regenerator 21-1 and B sides regenerator 21-2, and the reversal valve is divided into A sides Reversal valve 22-1, B sides reversal valves 22-2.
When the regenerative gas heating system is opened, A sides air line is opened, be then turned on A sides combustion gas Pipeline, starting ignition rifle lights the mixed gas of air and combustion gas, and mixed gas are produced after burning in the A side combusion chambers High-temperature flue gas, the exhaust gases passes that high-temperature flue gas are entered into the reactor enclosure body, the high temperature cigarette in the exhaust gases passes Gas flows along the flue spiral rotating and gives shaped spiral housing heating, then into B sides exhaust opening, last flue gas It is discharged into external environment by B sides regenerator, B sides reversal valve and flue gas pipeline, after A sides burning certain hour, two Reversal valve commutation described in side, starts the burning of B sides, and now A sides are discharged fume, both sides alternate combustion-smoke discharging.
According to a particular embodiment of the invention, the specific species of the insulation material is unrestricted, as long as guarantor can be reached The effect of temperature.In some embodiments of the invention, the insulation material is heat-preservation cotton, and the heat-preservation cotton external application is zinc-plated Iron plate parcel compacting, to ensure heat insulating ability.
According to a particular embodiment of the invention, the heat storage inside the regenerator can use ceramic bead or ceramic honeycomb Body, preferably ceramic honeycomb ceramics.
According to a particular embodiment of the invention, Fig. 4 is the half-section diagram of the reactor shell of the embodiment of the present invention, is such as schemed Shown in 4, the flue spiral is located in the exhaust gases passes, for changing flue gas flow direction, allows flue gas along the flue spiral Rotational flow so that flue gas can more uniformly heat the shaped spiral housing.
In another aspect of the present invention, electronic waste is carried out using foregoing system the invention provides one kind The method of pyrolysis.Embodiments in accordance with the present invention, the method is comprised the following steps:
First:Feedstock treating:Electronic waste raw material is crushed into the breaker, then is sieved by sorting unit Point, obtain metal and organic matter.
By electronic waste raw material by simply disassembling, crushed in feeding mechanical crusher, raw material is crushed to 0- The electronic waste particle of 30mm.Then sorted, by sorting be metal part and organic matter fractions.
Second:Metal recovery:It is remaining without metal after metal is completely dissolved by metal part feeding acidleach pond After part is through flue gas drying, mix with the organic matter fractions, pyrolytic reaction is carried out into reaction system.Obtained after dissolving metal The feeding electrolytic cell of the strong acid solution rich in metal ion in carry out cell reaction, reclaim metallic copper.
Embodiments in accordance with the present invention, the electrolytic cell anode material is graphite, and cathode material is titanium plate, stainless steel Plate, copper coin and proof gold plate, the voltage range of the electrolytic cell is 0.1-3V, and current density is 1-5A/dm2, temperature is in electrolytic cell 20-80 DEG C, the strong acid solution is the concentrated sulfuric acid or chloroazotic acid.
The anode material of the electrolytic cell 1 is graphite, and cathode material is copper coin.The voltage range of the electrolytic cell is 0.1- 3V, current density is 3A/dm2, and temperature is 35 DEG C in electrolytic cell.More pure copper, product copper can be reclaimed in electrolytic cell 1 Purity close to 100%, the rate of recovery about 98% of the metallic copper obtained by recovery.
The anode material of the electrolytic cell 2 is graphite, and cathode material is proof gold plate.The voltage range of the electrolytic cell is 0.1- 3V, current density is 8A/dm2, and temperature is 70 DEG C in electrolytic cell.More pure gold, product gold can be reclaimed in electrolytic cell 1 Purity close to 100%, the rate of recovery about 98% of the noble metal gold obtained by recovery.
3rd:The regenerative gas heating system is opened, its step is as follows:Open A sides air line, Ran Houkai A sides burning line is opened, starting ignition rifle lights the mixed gas of air and combustion gas, and mixed gas are in the A side combusion chambers High-temperature flue gas, the exhaust gases passes that high-temperature flue gas are entered into the reactor enclosure body, in the cigarette are produced after interior burning High-temperature flue gas flow along the flue spiral rotating and give shaped spiral housing heating in gas passage, then into the B sides Exhaust opening, last flue gas is discharged into external environment by B sides regenerator, B sides reversal valve and flue gas pipeline, the burning of A sides After certain hour, reversal valve commutation in both sides starts the burning of B sides, and now A sides are discharged fume, both sides alternate combustion-smoke discharging.
Embodiments in accordance with the present invention, the A sides are the left side of the reactor shell, and the B sides are the reactor The right side of housing.
According to a particular embodiment of the invention, the flue spiral is located in the exhaust gases passes, for changing flue gas stream To allowing flue gas to be flowed along the flue spiral rotating so that flue gas can more uniformly heat the shaped spiral housing.
Embodiments in accordance with the present invention, the heat accumulating burner is changed including 2 combustion chambers, 2 regenerator and 2 To valve, the combustion chamber, regenerator, reversal valve are respectively arranged in the both sides of the reactor shell, described in normal work The both sides of heat storage type combustion can alternately burn-smoke discharging.
Embodiments in accordance with the present invention, the combustion chamber is divided into A side combusion chambers(A sides exhaust opening)20-1 and B side combusion chambers (B sides exhaust opening)20-2, the heat accumulating type is divided into A sides regenerator 21-1 and B sides regenerator 21-2, and the reversal valve is divided into A sides Reversal valve 22-1, B sides reversal valves 22-2.
4th, material pyrolytic process:After combustion system stabilization, the shaped spiral housing is heated to 600-700 DEG C, can be in institute State material inlet and be put into material, the back forward movement side that the material enters into the material propulsion spiral is pyrolyzed, until Move to slag charge outlet and be pyrolyzed and finish, be pyrolyzed the gas for producing and discharged from the oil gas vent, remaining pyrolysis slag charge It is discharged from slag charge outlet, after the high-temperature gas is through the cooling separation, obtains pyrolysis gas and tar, the pyrolysis , rich in the combustibility such as methane, hydrogen, carbon monoxide and reducibility gas, a part is used as heating system raw material combustion gas, heating for gas Itself, another part can be used as also Primordial Qi.
Embodiments in accordance with the present invention, it is exposed to be provided with material on the shaped spiral housing of the reactor enclosure external body Import, oil gas vent, slag charge outlet, and the material inlet are located at the shaped spiral housing upper right quarter, the oil gas vent position In the shaped spiral housing upper left quarter, the slag charge outlet is located at the shaped spiral housing lower left quarter.
Embodiments in accordance with the present invention, the shaped spiral housing is heat-resisting steel sheel, and thickness is 5-8mm, and the propeller cap Body extends through the opposite side of the reactor shell from the reactor shell side along the reactor enclosure intracoelomic cavity, described The exposed outside in the reactor shell in two ends of shaped spiral housing so that the reactor shell and the shaped spiral housing Between form confined space, the confined space constitutes the reactor shell exhaust gases passes of the regenerative gas heating system, The high-temperature flue gas for producing that burn enter the exhaust gases passes, then transfer heat to its internal shaped spiral housing, described The outer wrap of reactor shell has insulation material, is used to reduce the radiation loss of wall.
Embodiments in accordance with the present invention, the material propulsion spiral is located inside the shaped spiral housing, and the material Propulsion spiral include helical axis and helical blade, the helical blade be fixed on the helical axis and be arranged to can with it is described Helical axis is rotated coaxially, and the helical axis stretches out the shaped spiral housing, the length of the helical blade in the material inlet side Degree is identical with the shaped spiral housing, and in the case where outside motor belt motor is dynamic with certain rotational speed, material enters into institute to the propulsion spiral State after reactor, be gradually pyrolyzed with the rising of temperature, while be advanced to, until be pyrolyzed before outlet finish, It is pyrolyzed the pyrolysis gas for producing to be discharged from the oil gas vent, the slag charge after pyrolysis is exported from the slag charge and discharged.
Inventor has found that the system according to embodiments of the present invention is capable of achieving material of being back to back, and material is in pyrolytic reaction It is tiled in device, is contacted with shaped spiral housing fully, high-temperature spiral housing is heated by radiation and heat conduction two ways to material, because This material fully can be quickly pyrolyzed, and material is pushed into spiral in pyrolytic process and gradually pushes ahead, and realizes side The function of pyrolysis side propulsion;The present invention, by heavy metal removing, is fired using the method for raw material front end pretreatment using spiral heat accumulating type Gas heating system as pyrolysis reactor thermal source, its fuel be high heating value combustion gas(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 burns.Exhaust gases passes Flue spiral is inside installed so that flue gas spiral rotating flows, flow field is more uniform, shaped spiral housing is real by heating evenly Show material of being back to back, material by continuous quick fully pyrolysis and the function such as energy-efficient, and utilize Feedstock treating System and metal recovery system, it is to avoid the severe contamination that heavy metal is caused, environmental protection.
Embodiment one:
Using natural gas as combustion gas, amount of natural gas is 2Nm to spiral regenerative gas combustion system3/ h, air capacity is 22 Nm3/ H, electronic waste material(Circuit board, electric wire, keyboard etc.)It is made into the particle of 3-6mm, inlet feed amount is 1kg/h, finally The pyrolysis slag charge for obtaining is 0.8kg/h, and the pyrolysis oil gas of generation is 0.286 Nm3/ h, realizes material of being back to back.It was pyrolyzed Cheng Zhong, constant temperature is maintained at 600 DEG C -700 DEG C, and thermal source stability is fine.
Solid residue after pyrolysis is detected, it is found that main component is the carbon and metal that can not be pyrolyzed, metal bag Copper, nickel, iron etc. are included, the composition that resin and glass fibre etc. can be pyrolyzed is not contained, pyrolysis effect is fine.
Oil gas chemical examination composition is as follows:
The electronic waste pyrolysis gas composition of table 1
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 reaches discharging standards.
In the description of the invention, it is to be understood that term " on ", D score, "left", "right", " interior ", " outward " etc. indicate 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 indicate imply signified device 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, without being understood that To indicate or implying relative importance or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", One or more this feature can be expressed or be implicitly included to the feature of " second ".In the description of the invention, unless It is otherwise noted, " multiple " is meant that two or more.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase Company ", " connection " should be interpreted broadly, for example, it may be being fixedly connected, or being detachably connected, or be integrally connected;Can Be mechanically connect, or put connection;Can be joined directly together, it is also possible to be indirectly connected to by intermediary, Ke Yishi Two connections of element internal.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this Concrete meaning in invention.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " illustrative examples ", The description of " example ", " specific example " or " some examples " etc. means to combine specific features, the knot that the embodiment or example are described Structure, material or feature are contained at least one embodiment of the invention or example.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 in an appropriate manner be combined in one or more any embodiments or example.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that:Not Can these embodiments be carried out with various changes, modification, replacement and modification in the case of departing from principle of the invention and objective, this The scope of invention is limited by claim and its equivalent.

Claims (10)

1. a kind of spiral regenerative gas electronic waste pyrolysis system, it is characterised in that including:Raw material processing system, metal are returned Receipts system and electronic waste pyrolytic reaction system, wherein,
The raw material processing system includes breaker and sorting unit, for being metal part and organic by electronic waste sorting Matter part;
The metal recovery system includes acidleach pond and electrolytic cell, and the acidleach pond is sent into for will sort the metal part for obtaining In, strong acid solution is added thereto to, it is remaining anti-through electronic waste pyrolysis without metal part after metal is completely dissolved After answering the flue gas drying that system is produced, mix with described organic matter fractions, enter into the electronic waste pyrolytic reaction system Row pyrolytic reaction, the strong acid solution rich in metal ion obtained after dissolving metal in sending into the electrolytic cell be electrolysed instead Should, reclaim metallic copper;
The electronic waste pyrolytic reaction system includes:Electronic waste pyrolysis reactor, regenerative gas heating system and cooling Piece-rate system, wherein,
The electronic waste pyrolysis reactor includes:Material pyrolization modules and reactor shell, the material pyrolization modules across The both sides of the reactor shell, and two ends of the material pyrolization modules are exposed in the outer of the reactor shell Portion, the material pyrolization modules include shaped spiral housing and material propulsion spiral,
Wherein, the shaped spiral housing extends through the reaction from the reactor shell side along the reactor enclosure intracoelomic cavity The opposite side of device housing, the exposed outside in the reactor shell in two ends of the shaped spiral housing so that the reaction Confined space is formed between device housing and the shaped spiral housing, the confined space constitutes the regenerative gas heating system Reactor shell exhaust gases passes;
The regenerative gas heating system includes:For producing the heat accumulating burner of heat smoke and for conveying heat smoke Reactor shell exhaust gases passes, also including the flue spiral for changing flue gas flow direction, the heat accumulating burner and institute State reactor shell exhaust gases passes to be connected, the flue spiral is installed between the reactor shell and the shaped spiral housing The exhaust gases passes in, it is arranged along the shaped spiral housing length direction, and with the reactor shell equal length;
The cooling separation includes:Indirect heat exchanger and for by high-temperature gas product through cooling obtain pyrolysis gas and tar Cooling tower;Wherein, the entrance of the indirect heat exchanger is connected with oil gas vent, the outlet of indirect heat exchanger and the cooling tower Entrance be connected.
2. spiral regenerative gas electronic waste pyrolysis system according to claim 1, it is characterised in that exposed described Material inlet, oil gas vent, slag charge outlet, and the material is provided with the shaped spiral housing of reactor enclosure external body to enter Mouth is located at the shaped spiral housing upper right quarter, and the oil gas vent is located at the shaped spiral housing upper left quarter, and the slag charge outlet is located at The shaped spiral housing lower left quarter;
The material propulsion spiral is located inside the shaped spiral housing, and material propulsion spiral includes helical axis and spiral Blade, the helical blade is fixed on the helical axis and is arranged to be rotated coaxially with the helical axis, the spiral Axle stretches out the shaped spiral housing in the material inlet side, and the length of the helical blade is identical with the shaped spiral housing.
3. spiral regenerative gas electronic waste pyrolysis system according to claim 1, it is characterised in that
The heat accumulating burner includes air line, burning line, flue gas pipeline, reversal valve, regenerator and combustion chamber, institute State air line and the flue gas pipeline is connected with the reversal valve respectively, the reversal valve is connected with the regenerator, described Regenerator is connected with the combustion chamber.
4. spiral regenerative gas electronic waste pyrolysis system according to claim 3, it is characterised in that the heat accumulating type Burner includes 2 combustion chambers, 2 regenerator and 2 reversal valves, and the combustion chamber, regenerator, reversal valve are respectively arranged In the both sides of the reactor shell, in normal work, the both sides of the heat storage type combustion can alternately burn-discharge fume Gas.
5. the spiral regenerative gas electronic waste pyrolysis system according to any one of claim 1-4, it is characterised in that The shaped spiral housing is heat-resisting steel sheel, and thickness is 5-8mm;The electrolytic cell anode material is graphite, and cathode material is titanium Plate, stainless steel plate, copper coin and proof gold plate, the voltage range of the electrolytic cell is 0.1-3V, and current density is 1-5A/dm2, electrolytic cell Interior temperature is 20-80 DEG C, and the flue-gas temperature that the electronic waste pyrolytic reaction system is produced is 90-140 DEG C, the strong acid solution It is the concentrated sulfuric acid or chloroazotic acid.
6. the spiral regenerative gas electronic waste pyrolysis system according to any one of claim 1-4, it is characterised in that The outer wrap of the reactor shell has insulation material, and the insulation material is heat-preservation cotton, and the heat-preservation cotton external application is zinc-plated Iron plate is wrapped up.
7. spiral regenerative gas electronic waste pyrolysis system according to claim 1, it is characterised in that the flue spiral shell Rotation is located in the exhaust gases passes, for changing flue gas flow direction, allows flue gas to be flowed along the flue spiral rotating so that flue gas The shaped spiral housing can more uniformly be heated.
8. spiral regenerative gas electronic waste pyrolysis system according to claim 1, it is characterised in that the pyrolysis gas Combustibility and reducibility gas rich in methane, hydrogen and carbon monoxide, one part are used for the heating system raw material combustion gas, Heating repeats itself is utilized, and another part can be used as also Primordial Qi.
9. a kind of spiral regenerative gas electronic waste pyrolysis system using described in claim 1-8 carries out heat to electronic waste The method of solution, it is characterised in that comprise the following steps:
First:Feedstock treating:Electronic waste raw material is crushed into the breaker, then is sieved by sorting unit Point, obtain metal and organic matter;
Second:Metal recovery:It is remaining without metal part after metal is completely dissolved by metal part feeding acidleach pond After through flue gas drying, mix with the organic matter fractions, pyrolytic reaction is carried out into reaction system, the richness obtained after dissolving metal Cell reaction is carried out in the strong acid solution feeding electrolytic cell of metal ion, metallic copper is reclaimed;
3rd:Regenerative gas heating system is opened, its step is as follows:A sides air line is opened, A sides Gas Pipe is then turned on Line, starting ignition rifle lights the mixed gas of air and combustion gas, and mixed gas produce high temperature cigarette after burning in A side combusion chambers Gas, the exhaust gases passes that high-temperature flue gas are entered into reactor enclosure body, high-temperature flue gas are along flue spiral rotating stream in exhaust gases passes It is dynamic and give shaped spiral housing heating, then into B sides exhaust opening, last flue gas by B sides regenerator, B sides reversal valve and Flue gas pipeline is discharged into external environment, and after A sides burning certain hour, reversal valve commutation in both sides starts the burning of B sides, now A Side is discharged fume, both sides alternate combustion-smoke discharging;
4th, material pyrolytic process:After combustion system stabilization, shaped spiral housing is heated to uniform temperature, can be put in material inlet Enter material, the back forward movement side that the material enters into propulsion spiral is pyrolyzed, until move to slag charge outlet being pyrolyzed Finish, be pyrolyzed the gas for producing and discharged from oil gas vent, remaining pyrolysis slag charge is discharged from slag charge outlet, the high-temperature gas After through the cooling separation, pyrolysis gas and tar are obtained, the pyrolysis gas are rich in methane, hydrogen, the combustibility of carbon monoxide And reducibility gas, a part of to heat itself as heating system raw material combustion gas, another part can be used as also Primordial Qi.
10. method according to claim 9, it is characterised in that
In the step 3, the A sides are the left side of the reactor shell, and the B sides are the right side of the reactor shell; In the step 4, the shaped spiral housing is heated to 600-700 DEG C.
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CN2509456Y (en) * 2001-11-08 2002-09-04 柯耀霖 Non-oxygen pyrolytic apparatus
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