CN206600815U - A kind of spiral regenerative gas electronic waste pyrolysis system - Google Patents
A kind of spiral regenerative gas electronic waste pyrolysis system Download PDFInfo
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- CN206600815U CN206600815U CN201621354993.3U CN201621354993U CN206600815U CN 206600815 U CN206600815 U CN 206600815U CN 201621354993 U CN201621354993 U CN 201621354993U CN 206600815 U CN206600815 U CN 206600815U
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Abstract
The utility model is related to refuse pyrolysis technical field, more particularly, to a kind of spiral regenerative gas electronic waste pyrolysis system.The system includes：Raw material processing system, metal recovery system and electronic waste pyrolytic reaction system, wherein, the raw material processing system includes breaker and sorting unit；The metal recovery system includes acidleach pond and electrolytic cell；The electronic waste pyrolytic reaction system includes：Electronic waste pyrolysis reactor, regenerative gas heating system and cooling separation, the electronic waste pyrolysis reactor include：Material pyrolization modules and reactor shell；The regenerative gas heating system includes：Heat accumulating burner, exhaust gases passes and flue spiral；The cooling separation includes：Indirect heat exchange fills device and cooling tower.The system has pyrolysis efficiency high, continuous feeding and discharging and electronic waste is divided into organic matter and metal part handles recovery, the advantages of effects of energy conservation and environmental protection is notable respectively.
Description
Technical field
The utility model is related to refuse pyrolysis technical field, more particularly, to a kind of spiral regenerative gas electronic waste heat
Solution system.
Background technology
In recent years, various electronic products are maked rapid progress, and new and old replacement is more and more faster, and the electronic waste produced therefrom is just
Increased with exponential.Its heavy metal element contained can be serious pollution environment, will be produced if electronic waste is dealt with improperly
The toxic and harmful gas 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 recycling 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 used 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
Source, there is a space inside it, and 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,
Purge after enough time, resistance furnace, which is powered, 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 member
Element analysis, finally closes instrument.Above-mentioned fixed-bed pyrolysis experimental method, can not realize that material is back to back, accordingly
Material continuous pyrolysis can not be realized, and the point of the utility model most critical is exactly the reactor using screw propulsion mode, is realized
It is back to back material, continuous pyrolysis, so that pyrolytic process is more simple and efficient, and the pyrolysis work of such a material of being back to back
Skill is more easy to realize industrialization.Therefore, how to design a kind of efficient, system architecture and all simple system of technological process turns into ability
The problem of domain urgent need to resolve.
Utility model content
The utility model is in view of the shortcomings of the prior art, it is proposed that a kind of spiral regenerative gas electronic waste pyrolysis system
System.The system has pyrolysis efficiency high, continuous feeding and discharging and electronic waste is divided into organic matter and metal part to be handled respectively
Reclaim, 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 in the utility model is：
The utility model proposes a kind of spiral regenerative gas electronic waste pyrolysis system.According to reality of the present utility model
Example is applied, the system includes：Raw material processing system, metal recovery system and electronic waste pyrolytic reaction system, wherein, the raw material
Processing system includes breaker and sorting unit, for being metal part and organic matter fractions by electronic waste sorting；It is described
Metal recovery system includes acidleach pond and electrolytic cell, is sent into for will sort obtained metal part in the acidleach pond, Xiang Qi
Middle addition strong acid solution, after metal is completely dissolved, the remaining metal part that is free of is through the electronic waste pyrolytic reaction system
After the flue gas drying of generation, mix, be pyrolyzed into the electronic waste pyrolytic reaction system with described organic matter fractions
The strong acid solution rich in metal ion obtained after reaction, dissolving metal, which is sent into the electrolytic cell, carries out cell reaction, reclaims
Metallic copper；The electronic waste pyrolytic reaction system includes：Electronic waste pyrolysis reactor, regenerative gas heating system and cold
But piece-rate system, wherein, the electronic waste pyrolysis reactor includes：Material pyrolization modules and reactor shell, the material
Pyrolization modules are across the both sides of the reactor shell, and two ends of the material pyrolization modules are exposed in the reaction
The outside of device housing, the material pyrolization modules include shaped spiral housing and material and promote spiral, wherein, the shaped spiral housing is from institute
State the opposite side that reactor shell side extends through the reactor shell along the reactor enclosure intracoelomic cavity, the propeller cap
The exposed outside in the reactor shell in two ends of body so that shape between the reactor shell and the shaped spiral housing
Into confined space, the confined space constitutes the reactor shell exhaust gases passes of the regenerative gas heating system；It is described to store
Hot type gas heating system includes：For producing the heat accumulating burner of heat smoke and reactor enclosure for conveying heat smoke
Body exhaust gases passes, in addition to for changing the flue spiral of flue gas flow direction, the heat accumulating burner and the reactor enclosure
Body exhaust gases passes are connected, and the flue spiral is installed on the flue gas between the reactor shell and the shaped spiral housing
In passage, it is arranged along the shaped spiral housing length direction, and with the reactor shell equal length；The cooling separation
Including：Indirect heat exchanger and the cooling tower for high-temperature gas product to be obtained to pyrolysis gas and tar through cooling；Wherein, between described
The entrance for connecing heat exchanger is connected with oil gas vent.
Inventor has found, according to the system of the utility model embodiment, material of being back to back can be achieved, material is in pyrolysis
It is tiled, is contacted with shaped spiral housing fully in reactor, high-temperature spiral housing is added by radiation and heat conduction two ways to material
Heat, therefore material fully can be quickly pyrolyzed, and material is pushed into spiral in pyrolytic process and gradually pushed ahead, and realizes
The function of being promoted in pyrolysis；The utility model uses the method that raw material front end is pre-processed, and by heavy metal removing, utilizes spiral
Regenerative gas heating system is as the thermal source of pyrolysis reactor, and its fuel is high heating value combustion gas（Natural gas, liquefied petroleum gas
Deng）, as a result of heat storage type combustion mode, combustion air is preheating to high temperature by regenerator, it is achieved thereby that efficient stable fires
Burn.Flue spiral is installed so that flue gas spiral rotating flows in exhaust gases passes, flow field is more uniform, and shaped spiral housing is by more equal
Even heating, realizes material of being back to back, material by continuous quick fully pyrolysis and the function such as energy-efficient, and profit
With raw material processing system and metal recovery system, it is to avoid the severe contamination that heavy metal is caused, environmental protection.
According to embodiment of the present utility model, it is provided with the exposed shaped spiral housing outside the reactor shell
Material inlet, oil gas vent, slag charge outlet, and the material inlet is located at the shaped spiral housing upper right quarter, and the oil gas goes out
Mouth 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 promotes spiral
Inside the shaped spiral housing, and the material promotes spiral to include helical axis and helical blade, and the helical blade is consolidated
Due on the helical axis and being arranged to rotate coaxially with the helical axis, the helical axis is in the material inlet side
The shaped spiral housing is stretched out, the length of the helical blade is identical with the shaped spiral housing.
According to embodiment of the present utility model, the heat accumulating burner includes air line, burning line, fume pipe
Line, reversal valve, regenerator and combustion chamber, the air line and the flue gas pipeline are connected with the reversal valve respectively, described
Reversal valve is connected with the regenerator, and the regenerator is connected with the combustion chamber.
According to embodiment of the present utility model, the heat accumulating burner includes 2 combustion chambers, 2 regenerator and 2
Individual reversal valve, 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-smoke discharging.
According to embodiment of the present utility model, the shaped spiral housing is heat-resisting steel sheel, and thickness is 5-8mm, the electrolysis
Pond 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, and the electronic waste pyrolytic reaction system is produced
Flue-gas temperature be 90-140 DEG C, the strong acid solution be the concentrated sulfuric acid or chloroazotic acid.
According to embodiment of the present utility model, the outer wrap of the reactor shell has insulation material, the thermal insulating material
Material is heat-preservation cotton, and the heat-preservation cotton external application galvanized iron sheet is wrapped up.
According to embodiment of the present utility model, 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.
According to embodiment of the present utility model, the pyrolysis gas is rich in the combustibility of methane, hydrogen and carbon monoxide and gone back
Originality 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 reduction
Gas.
In other side of the present utility model, the utility model provides one kind using foregoing system to electronics
The method that rubbish is pyrolyzed.According to embodiment of the present utility model, this method comprises the following steps：First：Feedstock treating：Electricity
Sub- garbage raw material is crushed into the breaker, then is sieved by sorting unit, obtains metal and organic matter；The
Two：Metal recovery：By in metal part feeding acidleach pond, after metal is completely dissolved, the remaining metal part that is free of is through flue gas
After drying, mixed with the organic matter fractions, pyrolytic reaction is carried out into reaction system.What is obtained after dissolving metal is rich in metal
Cell reaction is carried out in the strong acid solution feeding electrolytic cell of ion, metallic copper is reclaimed；3rd：Open regenerative gas heating system
System, its step is as follows：A sides air line is opened, A sides burning line is then turned on, starting ignition rifle lights air and combustion gas
Mixed gas, mixed gas produces high-temperature flue gas after being burnt in A side combusion chambers, high-temperature flue gas is entered in reactor enclosure body
Exhaust gases passes, in exhaust gases passes high-temperature flue gas along flue spiral rotating flow and to the shaped spiral housing heating, Ran Houjin
Enter to 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 combustion of A sides
Burn after certain time, reversal valve commutation in both sides starts the burning of B sides, now A sides are discharged fume, both sides alternate combustion-smoke evacuation
Gas；4th, material pyrolytic process：After combustion system is stable, shaped spiral housing is heated to certain temperature, can be put into material inlet
Material, the material, which is entered, promotes the back forward movement side of spiral to be pyrolyzed, and has been pyrolyzed until being moved to slag charge outlet
Finish, be pyrolyzed the gas produced and discharged from oil gas vent, remaining pyrolysis slag charge is discharged from slag charge outlet, the high-temperature gas warp
After the cooling separation, obtain pyrolysis gas and tar, the pyrolysis gas rich in methane, hydrogen, carbon monoxide combustibility and
Reducibility gas a, part heats itself as heating system raw material combustion gas, and another part can be used as also Primordial Qi.
According to embodiment of the present utility model, in the step 3, the A sides are the left side of the reactor shell, institute
State the right side that B sides are the reactor shell；In the step 4, the shaped spiral housing is heated to 600-700 DEG C.
The utility model at least has the advantages that：
Using the spiral heat accumulating type electronics refuse pyrolysis system, material of being back to back can be achieved, material is in pyrolysis reactor
Inside it is tiled, is contacted with shaped spiral housing fully, 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 pushed ahead, and realize side heat
Solve the function that side is promoted；The utility model uses the method that raw material front end is pre-processed, and by heavy metal removing, utilizes spiral heat accumulating type
Gas heating system is as the thermal source of pyrolysis reactor, and its fuel is high heating value combustion gas（Natural gas, liquefied petroleum gas etc.）, due to
Heat storage type combustion mode is employed, combustion air is preheating to high temperature by regenerator, it is achieved thereby that efficient stable burns.Flue gas leads to
Flue spiral is installed so that flue gas spiral rotating flows, and flow field is more uniform in road, shaped spiral housing by heating evenly,
Material of being back to back, material are realized by continuous quick fully pyrolysis and the function such as energy-efficient, and using at raw material
Reason 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 is the Feedstock treating system of the spiral regenerative gas electronic waste pyrolysis system according to the utility model embodiment
System and metal recovery system schematic.
Fig. 2 is the pyrolysis reactor of the spiral regenerative gas electronic waste pyrolysis system according to the utility model embodiment
Structural representation.
Fig. 3 is the pyrolytic reaction system of the spiral regenerative gas electronic waste pyrolysis system according to the utility model embodiment
System schematic diagram.
Fig. 4 is the half-section diagram of the reactor shell of the utility model embodiment.
Wherein, material promotes 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 sides store
Hot cell 21-2, A side reversal valve 22-1, B sides reversal valve 22-2, burning line 23, air line 24, flue gas pipeline 25.
Embodiment
In order that those skilled in the art more fully understand the technical solution of the utility model, with reference to specific embodiment
The utility model is described in further detail.The embodiments described below is exemplary, is only used for explaining that this practicality is new
Type, and it is not intended that to limitation of the present utility model.
The utility model proposes a kind of spiral regenerative gas electronic waste pyrolysis system.According to reality of the present utility model
Example is applied, Fig. 1 is the raw material processing system of the spiral regenerative gas electronic waste pyrolysis system according to the utility model embodiment
With metal recovery system schematic, Fig. 3 is to be pyrolyzed to be according to the spiral regenerative gas electronic waste of the utility model embodiment
Shown in the pyrolytic reaction system schematic of system, reference picture 1 and Fig. 3, the system includes：Raw material processing system, metal recovery system
With electronic waste pyrolytic reaction system, wherein, the raw material processing system includes breaker and sorting unit, for by electronics
Refuse classification is metal part and organic matter fractions；The metal recovery system includes acidleach pond and electrolytic cell；The electronics rubbish
Rubbish pyrolytic reaction system includes：Electronic waste pyrolysis reactor, regenerative gas heating system 20 and cooling separation, its
In, Fig. 2 is the pyrolysis reactor structure of the spiral regenerative gas electronic waste pyrolysis system according to the utility model embodiment
Schematic diagram, shown in reference picture 2, the electronic waste pyrolysis reactor includes：Material pyrolization modules and reactor shell 15, it is described
Material pyrolization modules are across the both sides of the reactor shell, and two ends of the material pyrolization modules are exposed described
The outside of reactor shell；The regenerative gas heating system includes：For produce heat smoke heat accumulating burner and
Reactor shell exhaust gases passes 16 for conveying heat smoke, in addition to for changing the flue spiral 17 of flue gas flow direction, it is described
Heat accumulating burner is connected with the reactor shell exhaust gases passes, and the flue spiral is installed on the reactor shell
In the exhaust gases passes between the shaped spiral housing, it is arranged along the shaped spiral housing length direction, and with the reaction
Device housing equal length；The cooling separation includes：Indirect heat exchanger 18 and for by high-temperature gas product through cooling obtain
The cooling tower 19 of pyrolysis gas and tar；Wherein, the entrance of the indirect heat exchanger is connected with oil gas vent, and indirect heat exchanger goes out
Mouth is connected with the entrance of the cooling tower.
Inventor has found, according to the system of the utility model embodiment, material of being back to back can be achieved, material is in pyrolysis
It is tiled, is contacted with shaped spiral housing fully in reactor, high-temperature spiral housing is added by radiation and heat conduction two ways to material
Heat, therefore material fully can be quickly pyrolyzed, and material is pushed into spiral in pyrolytic process and gradually pushed ahead, and realizes
The function of being promoted in pyrolysis；The utility model uses the method that raw material front end is pre-processed, and by heavy metal removing, utilizes spiral
Regenerative gas heating system is as the thermal source of pyrolysis reactor, and its fuel is high heating value combustion gas（Natural gas, liquefied petroleum gas
Deng）, as a result of heat storage type combustion mode, combustion air is preheating to high temperature by regenerator, it is achieved thereby that efficient stable fires
Burn.Flue spiral is installed so that flue gas spiral rotating flows in exhaust gases passes, flow field is more uniform, and shaped spiral housing is by more equal
Even heating, realizes material of being back to back, material by continuous quick fully pyrolysis and the function such as energy-efficient, and profit
With raw material processing system and metal recovery system, it is to avoid the severe contamination that heavy metal is caused, environmental protection.
It is shown referring to Figures 1 and 2 according to embodiment of the present utility model, the metal recovery system, for that will sort
To metal part send into the acidleach pond, strong acid solution is added thereto, it is remaining without gold after metal is completely dissolved
Category part is mixed after the flue gas drying that the electronic waste pyrolytic reaction system is produced with foregoing obtained organic matter fractions,
The strong acid solution rich in metal ion for into the electronic waste pyrolysis reactor obtain after pyrolytic reaction, dissolving metal
Send into and cell reaction is carried out in the electrolytic cell, reclaim metallic copper；The electronic waste pyrolysis reactor is arranged in reactor enclosure
Inside the confined space that body is formed with shaped spiral housing 14, and installation placed in the middle along its length, the regenerative gas heating
System is arranged in the outside of the reactor shell；The material pyrolization modules include shaped spiral housing and material promotes spiral, its
In, the shaped spiral housing extends through the reactor shell from the reactor shell side along the reactor enclosure intracoelomic cavity
Opposite side, the exposed outside in the reactor shell in two ends of the shaped spiral housing so that the reactor shell
Confined space is formed between the shaped spiral housing, the confined space constitutes the reactor of the regenerative gas heating system
Housing exhaust gases passes, the high-temperature flue gas that burning is produced enters exhaust gases passes, then transfers heat to its internal shaped spiral housing,
Material is pyrolyzed, the outer wrap of the reactor shell has insulation material, the radiation loss for reducing wall；It is described
Pyrolysis gas is rich in flammable and reducibility gas, and one part is used for the heating system raw material combustion gas, heating repeats itself profit
With another part can be used as also Primordial Qi.
According to embodiment of the present utility model, 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 in electrolytic cell
For 20-80 DEG C, the strong acid solution is the concentrated sulfuric acid or chloroazotic acid.
The anode material of 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 that temperature is 35 DEG C in 3A/dm2, 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 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 that temperature is 70 DEG C in 8A/dm2, 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.
According to embodiment of the present utility model, the strong acid solution is chloroazotic acid（V concentrated hydrochloric acids：V concentrated nitric acid=3:1）, sulfuric acid,
The mixture of the strong acid such as hydrochloric acid, nitric acid, hydrogen peroxide or Strong oxdiative solution or both, 0.5 ~ 2mol/L of solution concentration.To described
Alkali solid material is added in strong acid solution rich in metal ion, the pH value of solution is adjusted to neutral or faintly acid, to subtract
Gently to follow-up workshop section's equipment, the corrosiveness of pipeline.
According to embodiment of the present utility model, shown in reference picture 3, the indirect heat exchanger and oil gas vent, indirect heat exchange
The specific connected mode of device and the entrance of the cooling tower is unrestricted, can be welding, rivets, engages or structure-integrated,
According to some embodiments of the present utility model, it is preferred that the utility model is welding or structure-integrated.According to the utility model
Some embodiments, 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, when pyrolysis gas is discharged from the oil gas vent, into the indirect heat exchanger, by recirculated water to high-temperature gas
Carry out once cooling to handle, subsequently into cooling tower, reducing temperature twice cooling is carried out by cooling water, the gas after cooling passes through cold
But the pyrolysis gas outlet discharge of tower.
According to embodiment of the present utility model, the specific species of the flue spiral is unrestricted, of the present utility model
In some embodiments, shown in reference picture 3, the utility model is preferably deflection plate 17, for changing flue gas flow direction so that flue gas edge
Flue spiral rotating is flowed so that the flow of flue gas in the whole exhaust gases passes is more uniform, and the shaped spiral housing can be by
Uniform heating.
According to embodiment of the present utility model, the flue-gas temperature that the electronic waste pyrolytic reaction system is produced is 90-140
℃；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, this reality
With new use high-temperature refractory steel.
According to embodiment of the present utility model, the specific species of the flammable and reducibility gas is unrestricted, preferably
, the utility model is methane, hydrogen and carbon monoxide.
According to embodiment of the present utility model, as shown in Fig. 2 the exposed propeller cap outside the reactor shell
Material inlet 11, oil gas vent 13, slag charge outlet 12 are provided with body, and the material inlet is located at the shaped spiral housing right side
Top, 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 stable etc. combustion system, the shaped spiral housing is heated to certain temperature, now just can be in the material inlet
Material is put into, material enters the material and promoted after spiral, is pyrolyzed, goes out until being moved to the slag charge when moving forward
Mouth, which is pyrolyzed, to be finished, and is pyrolyzed the gas produced and is discharged from the oil gas vent, remaining pyrolysis slag charge is exported from the slag charge
Discharge, the high-temperature gas obtains pyrolysis gas and tar after the cooling separation, 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.
According to embodiment of the present utility model, shown in reference picture 2, the material promotes spiral to be located in the shaped spiral housing
Portion, and the material promotes spiral to include helical axis and helical blade, and the helical blade is fixed on the helical axis simultaneously
It is arranged to rotate coaxially with the helical axis, the helical axis stretches out the shaped spiral housing in the material inlet side,
The length of the helical blade is identical with the shaped spiral housing, and the propulsion spiral is turned in the case where outside motor belt motor is dynamic with certain rotating speed
Dynamic, material is entered after the reactor, is gradually pyrolyzed with the rise of temperature, is advanced to simultaneously, until going out
It is pyrolyzed and finishes before mouthful, the pyrolysis gas that pyrolysis is produced is discharged from the oil gas vent, the slag charge after pyrolysis is from the slag charge
Outlet discharge.Realize while pyrolysis while promote, the function that be back to back material and material are continuously rapidly and efficiently pyrolyzed.
According to embodiment of the present utility model, shown in reference picture 3, the heat accumulating burner include air line 24,
Burning line 23, flue gas pipeline 25, reversal valve, regenerator and combustion chamber, the air line and the flue gas pipeline respectively with
The reversal valve connection, the reversal valve is connected with the regenerator, and the regenerator is connected with the combustion chamber.
According to embodiment of the present utility model, the specific species of the air line is unrestricted, as long as can be fuel
There is provided combustion air, air by the air line first by the reversal valve, then into the regenerator
Heat absorption, high temperature is heated to the checker port, is entered back into the combustion chamber and is burnt with combustion gas mixing.
According to embodiment of the present utility model, the specific species of the burning line is unrestricted, as long as can be burning
Reaction provides combustion gas, due to using high heating value combustion gas, it is only necessary to which air single regenerative, which can be stablized, to burn.
According to embodiment of the present utility model, the specific material of flue gas pipeline and species are unrestricted, as long as can be by
Flue gas discharges the reactor, and flue gas pipeline described in the utility model is flue gas exhausting pipe line, and combustion product flue gas leads to
Cross the externally discharged environment space of the pipeline.
According to embodiment of the present utility model, the reversal valve is used for air-flue gas commutation, when side is in fired state
When, regenerator is connected by the reversal valve with the air line, and then provides high temperature combustion air to burning；At side
When the state of smoke evacuation, the reversal valve commutation, now the regenerator is just connected by the reversal valve with the flue gas pipeline,
Flue gas just arranges external environment space.
According to embodiment of the present utility model, the regenerator is the medium of air-flue gas heat exchange, when side is in burning
During state, 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
During state, flue gas enters the regenerator from the regenerator top, and the deflection plate is gradually heated by the sonochemical activity.
According to embodiment of the present utility model, the combustion chamber is both the combustion space of combustion gas, is the outlet of flue gas again,
When as combustion space, combustion gas and air are first in the burning Indoor Combustion, and the high-temperature flue gas of generation enters back into described anti-
Device enclosure interior is answered, burning is carried out in the combustion chamber, it is to avoid thermal-flame directly burns the shaped spiral housing；When being used as cigarette
During gas exhaust outlet, then flue gas sequentially enters the regenerator, reversal valve, the outside portion space of most heel row from discharging herein.
According to embodiment of the present utility model, the heat accumulating burner includes 2 combustion chambers, 2 regenerator and 2
Individual reversal valve, 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-smoke discharging.
According to embodiment of the present utility model, the combustion chamber is divided into A side combusion chambers（A sides exhaust opening）Fire 20-1 and B sides
Burn room（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 valve 22-2.
When opening the regenerative gas heating system, A sides air line is opened, A sides combustion gas is then turned on
Pipeline, starting ignition rifle lights the mixed gas of air and combustion gas, and mixed gas is produced after being burnt in the A side combusion chambers
High-temperature flue gas, the exhaust gases passes that high-temperature flue gas is entered in 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 by B sides regenerator, B sides reversal valve and flue gas pipeline in external environment, after the burning certain time of A sides, two
Reversal valve described in side commutates, and starts the burning of B sides, now A sides are discharged fume, both sides alternate combustion-smoke discharging.
According to specific embodiment of the utility model, the specific species of the insulation material is unrestricted, as long as can reach
To the effect of insulation.In some embodiments of the present utility model, the insulation material is heat-preservation cotton, and the heat-preservation cotton
External application galvanized iron sheet 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 specific embodiment of the utility model, Fig. 4 is that the half-sectional of the reactor shell of the utility model embodiment is shown
It is intended to, as shown in figure 4, the flue spiral is located in the exhaust gases passes, for changing flue gas flow direction, allows flue gas along described
Flue spiral rotating flows so that flue gas can more uniformly heat the shaped spiral housing.
In other side of the present utility model, the utility model provides one kind using foregoing system to electronics
The method that rubbish is pyrolyzed.According to embodiment of the present utility model, this method comprises the following steps：
First：Feedstock treating：Electronic waste raw material is crushed into the breaker, then is carried out by sorting unit
Screening, obtains metal and organic matter.
By electronic waste raw material by simply disassembling, crushed in feeding mechanical crusher, raw material is crushed to 0-
30mm electronic waste particle.Then sorted, by sorting be metal part and organic matter fractions.
Second：Metal recovery：Metal part is sent into acidleach pond, it is remaining to be free of metal after metal is completely dissolved
Part is mixed after flue gas drying with the organic matter fractions, and 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.
According to embodiment of the present utility model, 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 in electrolytic cell
For 20-80 DEG C, the strong acid solution is the concentrated sulfuric acid or chloroazotic acid.
The anode material of 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 that temperature is 35 DEG C in 3A/dm2, 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 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 that temperature is 70 DEG C in 8A/dm2, 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 is in the A side combusion chambers
High-temperature flue gas, the exhaust gases passes that high-temperature flue gas is entered in the reactor enclosure body, in the cigarette are produced after interior burning
High-temperature flue gas flows along the flue spiral rotating and gives 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 time, reversal valve commutation in both sides starts the burning of B sides, now A sides are discharged fume, both sides alternate combustion-smoke discharging.
According to embodiment of the present utility model, the A sides are the left side of the reactor shell, and the B sides are described anti-
Answer the right side of device housing.
According to specific embodiment of the utility model, the flue spiral is located in the exhaust gases passes, for changing cigarette
Air-flow is to allowing flue gas to be flowed along the flue spiral rotating so that flue gas can more uniformly heat the shaped spiral housing.
According to embodiment of the present utility model, the heat accumulating burner includes 2 combustion chambers, 2 regenerator and 2
Individual reversal valve, 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-smoke discharging.
According to embodiment of the present utility model, the combustion chamber is divided into A side combusion chambers（A sides exhaust opening）Fire 20-1 and B sides
Burn room（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 valve 22-2.
4th, material pyrolytic process：After combustion system is stable, the shaped spiral housing is heated to 600-700 DEG C, can be in institute
State material inlet and be put into material, the material enters the material and promotes the back forward movement side of spiral to be pyrolyzed, until
It is moved to slag charge outlet and is pyrolyzed and finish, the gas that pyrolysis is produced is discharged from the oil gas vent, remaining pyrolysis slag charge
It is discharged from slag charge outlet, the high-temperature gas obtains pyrolysis gas and tar after the cooling separation, the pyrolysis
Gas is rich in the combustibility such as methane, hydrogen, carbon monoxide and reducibility gas, and a part is used as heating system raw material combustion gas, heating
Itself, another part can be used as also Primordial Qi.
According to embodiment of the present utility model, it is provided with the exposed shaped spiral housing outside the reactor shell
Material inlet, oil gas vent, slag charge outlet, and the material inlet is located at the shaped spiral housing upper right quarter, and the oil gas goes out
Mouth 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.
According to embodiment of the present utility model, the shaped spiral housing is heat-resisting steel sheel, and thickness is 5-8mm, and the spiral shell
Rotation housing extends through the opposite side of the reactor shell from the reactor shell side along the reactor enclosure intracoelomic cavity,
The exposed outside in the reactor shell in two ends of the shaped spiral housing so that the reactor shell and the spiral
Confined space is formed between housing, the reactor shell flue gas that the confined space constitutes the regenerative gas heating system leads to
Road, the high-temperature flue gas that burning is produced enters the exhaust gases passes, then transfers heat to its internal shaped spiral housing, institute
Stating the outer wrap of reactor shell has insulation material, the radiation loss to reduce wall.
According to embodiment of the present utility model, the material promotes spiral to be located inside the shaped spiral housing, and described
Material promotes spiral to include helical axis and helical blade, and the helical blade is fixed on the helical axis and be arranged to can be with
The helical axis is rotated coaxially, and the helical axis stretches out the shaped spiral housing, the helical blade in the material inlet side
Length it is identical with the shaped spiral housing, the propulsion spiral is in the case where outside motor belt motor is dynamic with certain rotational speed, and material enters
To after the reactor, gradually it is pyrolyzed, is advanced to simultaneously with the rise of temperature, until has been pyrolyzed before outlet
Finish, the pyrolysis gas that pyrolysis is produced is discharged from the oil gas vent, the slag charge after pyrolysis is exported from the slag charge and discharged.
Inventor has found, according to the system of the utility model embodiment, material of being back to back can be achieved, material is in pyrolysis
It is tiled, is contacted with shaped spiral housing fully in reactor, high-temperature spiral housing is added by radiation and heat conduction two ways to material
Heat, therefore material fully can be quickly pyrolyzed, and material is pushed into spiral in pyrolytic process and gradually pushed ahead, and realizes
The function of being promoted in pyrolysis；The utility model uses the method that raw material front end is pre-processed, and by heavy metal removing, utilizes spiral
Regenerative gas heating system is as the thermal source of pyrolysis reactor, and its fuel is high heating value combustion gas（Natural gas, liquefied petroleum gas
Deng）, as a result of heat storage type combustion mode, combustion air is preheating to high temperature by regenerator, it is achieved thereby that efficient stable fires
Burn.Flue spiral is installed so that flue gas spiral rotating flows in exhaust gases passes, flow field is more uniform, and shaped spiral housing is by more equal
Even heating, realizes material of being back to back, material by continuous quick fully pyrolysis and the function such as energy-efficient, and profit
With raw material processing system and metal recovery system, it is to avoid the severe contamination that heavy metal is caused, environmental protection.
Embodiment one：
Spiral regenerative gas combustion system is using 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 3-6mm particle, inlet feed amount is 1kg/h,
The pyrolysis slag charge finally given is 0.8kg/h, and the pyrolysis oil gas of generation is 0.286 Nm3/ h, realizes material of being back to back.Heat
In solution preocess, 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 description of the present utility model, it is to be understood that term " on ", " under ", "left", "right", " interior ", " outer " etc.
The orientation or position relationship of instruction are, based on orientation shown in the drawings or position relationship, to be for only for ease of description the utility model
Described with simplifying, rather than indicate or imply that the device or element of meaning there must be specific orientation, with specific orientation structure
Make and operate, therefore it is not intended that to limitation of the present utility model.In addition, term " first ", " second " are only used for describing mesh
, and it is not intended that indicating or implying relative importance or the implicit quantity for indicating indicated technical characteristic.Thus, limit
Surely there is " first ", one or more this feature can be expressed or be implicitly included to the feature of " second ".It is new in this practicality
In the description of type, unless otherwise indicated, " multiple " are meant that two or more.
, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in description of the present utility model
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly
Connection；Can be mechanical connection or point connection；Can be joined directly together, can also be indirectly connected to by intermediary,
It can be the connection of two element internals.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
Concrete meaning of the language in the utility model.
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 present utility model or example.In this manual, to above-mentioned art
The schematic representation of language is not necessarily referring to identical embodiment or example.Moreover, description specific features, structure, material or
Person's feature can in an appropriate manner be combined in any one or more embodiments or example.
While there has been shown and described that embodiment of the present utility model, it will be understood by those skilled in the art that：
These embodiments can be carried out with a variety of changes, modification in the case where not departing from principle of the present utility model and objective, replaced
And modification, scope of the present utility model limits by claim and its equivalent.
Claims (7)
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 obtained metal part
In, strong acid solution is added thereto, it is remaining to be pyrolyzed instead through the electronic waste without metal part after metal is completely dissolved
Answer after the flue gas drying that system is produced, mix, enter into the electronic waste pyrolytic reaction system with described organic matter fractions
The strong acid solution rich in metal ion obtained after row pyrolytic reaction, dissolving metal, which is sent 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 promotes 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, in addition to：Flue spiral, the heat accumulating burner leads to 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, for changing heat smoke flow direction, allow heat
Flue gas flows along the flue spiral rotating so that heat smoke can more uniformly heat the shaped spiral housing；
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 outside reactor shell 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 promotes spiral to be located inside the shaped spiral housing, and the material promotes spiral to include helical axis and spiral
Blade, the helical blade is fixed on the helical axis and is arranged to rotate 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
For 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 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,
Heat repeats itself to utilize, another part can be used as also Primordial Qi.
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|---|---|---|---|
| CN201621354993.3U CN206600815U (en) | 2016-12-12 | 2016-12-12 | A kind of spiral regenerative gas electronic waste pyrolysis system |
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| CN201621354993.3U CN206600815U (en) | 2016-12-12 | 2016-12-12 | A kind of spiral regenerative gas electronic waste pyrolysis system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106705058A (en) * | 2016-12-12 | 2017-05-24 | 北京神雾环境能源科技集团股份有限公司 | Spiral heat accumulation type gas electronic waste pyrolysis system |
| CN108302959A (en) * | 2017-12-12 | 2018-07-20 | 中国石油天然气集团公司 | Heat-exchanger rig |
| CN113751462A (en) * | 2021-07-29 | 2021-12-07 | 海南省量心环保科技有限公司 | Electronic garbage recycling and disassembling equipment and processing method |
-
2016
- 2016-12-12 CN CN201621354993.3U patent/CN206600815U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106705058A (en) * | 2016-12-12 | 2017-05-24 | 北京神雾环境能源科技集团股份有限公司 | Spiral heat accumulation type gas electronic waste pyrolysis system |
| CN108302959A (en) * | 2017-12-12 | 2018-07-20 | 中国石油天然气集团公司 | Heat-exchanger rig |
| CN113751462A (en) * | 2021-07-29 | 2021-12-07 | 海南省量心环保科技有限公司 | Electronic garbage recycling and disassembling equipment and processing method |
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Denomination of utility model: Spiral heat accumulation type gas electronic waste pyrolysis system Effective date of registration: 20180322 Granted publication date: 20171031 Pledgee: The Bank of Beijing Limited by Share Ltd. Anwar Road Branch Pledgor: Shenwu Technology Group Co.,Ltd. Registration number: 2018990000210 |
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