CN106497585A - A kind of solid slag recovery type electronic waste pyrolysis installation and method - Google Patents
A kind of solid slag recovery type electronic waste pyrolysis installation and method Download PDFInfo
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- CN106497585A CN106497585A CN201611137009.2A CN201611137009A CN106497585A CN 106497585 A CN106497585 A CN 106497585A CN 201611137009 A CN201611137009 A CN 201611137009A CN 106497585 A CN106497585 A CN 106497585A
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- electronic waste
- solid slag
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- air
- shaped spiral
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B53/00—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B47/00—Destructive distillation of solid carbonaceous materials with indirect heating, e.g. by external combustion
- C10B47/18—Destructive distillation of solid carbonaceous materials with indirect heating, e.g. by external combustion with moving charge
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B47/00—Destructive distillation of solid carbonaceous materials with indirect heating, e.g. by external combustion
- C10B47/28—Other processes
- C10B47/32—Other processes in ovens with mechanical conveying means
- C10B47/44—Other processes in ovens with mechanical conveying means with conveyor-screws
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/006—Wet processes
- C22B7/007—Wet processes by acid leaching
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C1/00—Electrolytic production, recovery or refining of metals by electrolysis of solutions
- C25C1/12—Electrolytic production, recovery or refining of metals by electrolysis of solutions of copper
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C7/00—Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells
- C25C7/02—Electrodes; Connections thereof
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/006—General arrangement of incineration plant, e.g. flow sheets
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/02—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment
- F23G5/027—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment pyrolising or gasifying stage
- F23G5/0273—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment pyrolising or gasifying stage using indirect heating
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Abstract
The present invention relates to refuse pyrolysis technical field, more particularly, to a kind of solid slag recovery type electronic waste pyrolysis installation and method, the device includes：Electronic waste front-end preprocessor system, electronic waste pyrolytic reaction system and solid slag incinerator, the electronic waste front-end preprocessor system include：Raw material processing system and metal recovery system；The electronic waste pyrolytic reaction system includes：Electronic waste pyrolysis reactor and combustion type heating system, wherein, the electronic waste pyrolysis reactor includes：Material pyrolization modules and reactor shell, the combustion type heating system include：Combustion type burner and exhaust gases passes；The combustion type burner includes：Multiple pipelines, heat exchanger and combustion gas cavity etc.；The solid slag incinerator includes：Solid slag Burning Room.The device 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 stability and notable effects of energy conservation and environmental protection in device.
Description
Technical field
The present invention relates to refuse pyrolysis technical field, more particularly, to a kind of solid slag recovery type electronic waste pyrolysis installation and
Method.
Background technology
In recent years, various electronic products are maked rapid progress, and new and old replacement is increasingly faster, and the electronic waste for producing therefrom is just
Increased with exponential.The heavy metal element which 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, rationally effectively using electron wastes into the task of top priority.It is slow
Solution resource and the contradiction for developing, countries in the world are increasingly paid attention to recycling for resource, and Developing Circulation Economy changes and passes
The linear economy pattern of " resource-product-discharge " of system, sets up " resource-product-regenerated resources " and emphasizes resource sustainable application
Closed-loop flow economic model, treats electronic waste as Secondary Resource, can be economized on resources by recycle and reuse, to reduce
Exploitation to Resources, so that alleviate the environmental pressure that resource exploitation brings；Processing method currently used for electronic circuit board
Main by mechanical approach, metallurgical extraction method, biological treatment and pyrolysismethod etc., wherein mechanical approach, metallurgical extraction method,
Biological treatment etc. primarily focuses on the recovery of metal in circuit board, metal that can not only be in recovery train plate using pyrolysismethod
And the resource of the Non-metallic components such as resin in wiring board, glass fibre can be realized；Existing electronic waste pyrolytic reaction
Adopting thermogravimetric test equipment, the device for adopting to be fixed-bed pyrolysis experimental provision device, the device mainly includes resistance furnace, pyrolysis more
Reactor, nitrogen cylinder and gas collection bag etc..Wherein resistance furnace provides thermal source, has a space, pyrolysis reactor inside which
For a hydrostatic column, material is just put in pyrolysis reactor.During Pyrolysis Experiment, first the pyrolysis reactor equipped with material
Put in resistance furnace, then opening nitrogen cylinder is passed through nitrogen and starts to purge, after purging enough time, resistance furnace is powered and produces height
Warm temperature field, material just start to be pyrolyzed, and airbag starts to collect gas, and when waiting gas not regenerate, experiment terminates, and treats body of heater nature
40 DEG C are cooled to, body of heater is opened, pyrolysis residue are taken out, is weighed and elementary analysis, finally close instrument, above-mentioned fixed bed heat
Solution experimental technique, can not realize that material is back to back, can not realize material continuous pyrolysis accordingly；Conventional pyrolytic mode
Continuous feeding and discharging can not be realized, and pyrolytic process is complicated, pyrolysis efficiency is low, energy consumption is higher, furnace pressure is unstable, solid-state slag charge
Use cannot be reclaimed.Therefore how electronic waste processing meanss and the side of a kind of process is simple, efficiency high and energy-conserving and environment-protective are designed
Method becomes the problem of this area urgent need to resolve.
Content of the invention
It is contemplated that at least solving one of technical problem present in prior art, the present invention is directed to prior art not
Foot, it is proposed that a kind of solid slag recovery type electronic waste pyrolysis installation and method, the device have pyrolysis efficiency high, continuous feeding and discharging
And electronic waste being divided into organic matter and metal part processes recovery respectively, thermal source, pressure in device, atmosphere are stable, section
The advantages of energy environment protecting is notable.
For solving above-mentioned technical problem, the technical solution used in the present invention is：
The present invention proposes a kind of solid slag recovery type electronic waste pyrolysis installation, and embodiments in accordance with the present invention, the device include：
Electronic waste front-end preprocessor system, electronic waste pyrolytic reaction system and solid slag incinerator, wherein, before the electronic waste
End pretreatment system includes：Raw material processing system and metal recovery system, the raw material processing system include breaker and divide
Screening device, for sorting electronic waste for metal part and organic matter fractions；The metal recovery system include acidleach pond and
Electrolytic cell, the metal part for obtaining sorting are sent in the acidleach pond, are added thereto to strong acid solution, and metal is complete
After dissolving, remaining without metal part through the flue gas drying that the electronic waste pyrolytic reaction system is produced after, and described
Organic matter fractions mix, and entering the electronic waste pyrolytic reaction system carries out pyrolytic reaction, and obtained after dissolving metal is rich in
The strong acid solution of metal ion is sent in the electrolytic cell and carries out cell reaction, reclaims metallic copper；The electronic waste pyrolysis is anti-
System is answered to include：Electronic waste pyrolysis reactor and combustion type heating system, wherein, the electronic waste pyrolysis reactor bag
Include：Material pyrolization modules and reactor shell, the material pyrolization modules are across the both sides of the reactor shell and described
The exposed outside in the reactor shell in two ends of material pyrolization modules, the material pyrolization modules include shaped spiral housing
With propulsion spiral, wherein, the shaped spiral housing is extended through from the reactor shell side along the reactor enclosure intracoelomic cavity
The opposite side of the reactor shell, the exposed outside in the reactor shell in two ends of the shaped spiral housing so that
Confined space is formed between the reactor shell and the shaped spiral housing, and the confined space constitutes the combustion type heating system
The reactor shell exhaust gases passes of system；The combustion type heating system includes：For producing the combustion type burner of heat smoke
With for conveying the reactor shell exhaust gases passes of heat smoke, the combustion type burner is logical with the reactor shell flue gas
Road is connected；The combustion type burner includes：Air line, burning line, flue gas pipeline, slag charge pipeline, heat exchanger, combustion
Air cavity, air cavity, combustion chamber, air blast and chimney, described air line one end are connected with the heat exchanger, the other end
Connect with the air chamber body phase；The burning line is connected with the gas chamber body phase, for providing combustion gas；The flue gas pipeline one
End is connected with the heat exchanger, and the other end is connected with the reactor shell exhaust gases passes, for making the entrance heat exchanger
In flue gas the air entered in the heat exchanger by the air blast is preheated；Described slag charge pipeline one end be located at institute
The slag charge outlet for stating shaped spiral housing right lower quadrant is connected, and the other end is connected with the slag charge import for being located at the solid slag Burning Room top,
For solid slag recycling；The air blast is connected with the heat exchanger respectively with chimney；The combustion gas cavity and the sky
Air cavity is connected；The air cavity is connected with the solid slag Burning Room；The solid slag Burning Room and the combustion chamber phase
Connection, the combustion chamber are connected with the reactor shell exhaust gases passes, for making air and combustion gas indoor in the burning
Burnt, it is to avoid flame directly burns the shaped spiral housing；The solid slag incinerator includes：Solid slag Burning Room, for burning
Burn the solid slag produced by the electronic waste pyrolysis reactor.
Inventor has found that the device according to embodiments of the present invention, raw material obtain metal and organic through crushing and screening
Matter, metal part are sent in acidleach pond, after metal is completely dissolved, remaining without metal part through flue gas drying after, and front
The organic matter fractions mixing for obtaining is stated, reaction member is entered and is realized that material of being back to back, material are tiled in pyrolysis reactor,
Contact with shaped spiral housing fully, high-temperature spiral housing is heated to material by radiation and heat conduction two ways, and therefore material can
Fully quickly it is pyrolyzed, and material is pushed into spiral in pyrolytic process and is gradually pushed ahead, it is achieved that is advanced in pyrolysis
Function；By the use of combustion type heating system as the thermal source of pyrolysis reactor, its fuel can both be that high heating value combustion gas is alternatively low
Calorific value fuel gas, combustion air are preheating to high temperature through heat exchanger, it is achieved thereby that efficient stable burning, while the solid residue for producing
Enter into solid slag burning interior to be burned, it is achieved that the further process of slag charge, reduce pollution.Locate in advance electronic waste front end
Reason system avoids the severe contamination of heavy metal, and combustion type heating system, pyrolysis reactor and solid slag incinerator are connected to one
Rise, it is achieved that material of being back to back, material are by the work(such as continuous quick fully pyrolysis and energy-efficient, contamination-free residual
Energy.
Embodiments in accordance with the present invention, exposed are additionally provided with thing on the shaped spiral housing of the reactor enclosure external body
Material import and oil gas vent, and the material inlet is located at the shaped spiral housing upper left quarter, and the oil gas vent is located at described
Shaped spiral housing upper right quarter.
Embodiments in accordance with the present invention, are additionally provided with dust recovery port below the combustion chamber, for reclaiming described
In solid slag Burning Room, solid slag burns the dust for producing.
Embodiments in accordance with the present invention, the propulsion spiral are located inside the shaped spiral housing, and the propulsion spiral
Including helical axis and helical blade, the helical blade be fixed on the helical axis and be arranged to can with the helical axis with
Axle is rotated, and the helical axis stretches out the shaped spiral housing in the material inlet side, the length of the helical blade with described
Shaped spiral housing is identical.
Embodiments in accordance with the present invention, the electrolytic cell anode material are 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, in electrolytic cell, temperature is
20-40 DEG C, the flue-gas temperature that the electronic waste pyrolytic reaction system is produced 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 have insulation material.
Embodiments in accordance with the present invention, 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 shaped spiral housing are heat-resisting steel sheels, and thickness is 5-8mm.
In another aspect of the present invention, the invention provides a kind of utilize foregoing solid slag recovery type electronic waste
The method is pyrolyzed to electronic waste by pyrolysis installation.Embodiments in accordance with the present invention, the method are comprised the following steps：Step
One：Feedstock treating：Electronic waste raw material enters the breaker and is crushed, then is sieved through sorting unit, obtains
Metal and organic matter；Step 2：Metal recovery：Metal part is sent in acidleach pond, after metal is completely dissolved, remaining not
After containing metal part through flue gas drying, mix with the organic matter fractions, entering reaction system carries out pyrolytic reaction, dissolving metal
The strong acid solution rich in metal ion for obtaining afterwards is sent in electrolytic cell and carries out cell reaction, reclaims metallic copper；Step 3：Open
Combustion type heating system：Send the organic matter produced in above-mentioned steps one and two and without metal part into the electronic waste heat
In solution reaction system, air enters heat exchanger via air blast, absorbs the cigarette entered through the heat exchanger from the exhaust gases passes
After gas heat, then the air cavity is entered through the air line, enter the combustion gas cavity with through the burning line
Combustion gas mixing is burnt, and the high-temperature flue gas for producing that burn enter into the reactor shell exhaust gases passes, and reactor shell flue gas leads to
Flue gas in road is entered in heat exchanger by flue gas pipeline, the flue gas while air in Tube Sheet of Heat Exchanger is heated by high-temperature flue gas
Cooled, then by smoke stack emission to Outdoor Space, whole heating process is continuous burning to flue gas；Step 4：Material
Pyrolytic process：After combustion system is stable, shaped spiral housing is heated, and is put into material in material inlet, and material enters into propulsion spiral
Back move forward side and be pyrolyzed, until move to slag charge outlet and being pyrolyzed and finishing, be pyrolyzed the gas for producing and gone out from oil gas
Mouth is discharged, and remaining pyrolysis solid slag is discharged from slag charge outlet；Step 5：Solid slag burning process：Discharge is exported from the slag charge
Pyrolysis solid slag is entered through the slag charge pipeline and slag charge import is burnt in the solid slag Burning Room, and the dust of generation enters position
Dust recovery port in the combustion chamber bottom is reclaimed.
Embodiments in accordance with the present invention, in the step 4, the shaped spiral housing is heated to 600-700 DEG C.
The present invention at least has the advantages that：Material fully quickly can be pyrolyzed, and material is in pyrolytic process
In be pushed into spiral and gradually push ahead, it is achieved that the function of advancing in pyrolysis；By the use of combustion type heating system as pyrolysis
The thermal source of reactor, its fuel both can be alternatively fuel gas with low heat value for high heating value combustion gas, and combustion air is preheating to height through heat exchanger
Temperature, it is achieved thereby that efficient stable burning, while the solid residue for producing enters into solid slag burning interior being burned, it is achieved that
The further process of slag charge, reduces pollution；Electronic waste front-end preprocessor system avoids the severe contamination of heavy metal, combustion gas
Formula heating system, pyrolysis reactor and solid slag incinerator link together, it is achieved that material of being back to back, material are continuous
The function such as quick fully pyrolysis and high-efficient energy-saving environment friendly, contamination-free residual.
Description of the drawings
Fig. 1 is to be illustrated according to the electronic waste front-end preprocessor system of solid slag recovery type electronic waste pyrolysis installation of the present invention
Figure.
Fig. 2 is the structural representation of solid slag recovery type electronic waste pyrolysis installation of the present invention.
Wherein, spiral 10, material inlet 11, slag charge outlet 12, oil gas vent 13, shaped spiral housing 14, reactor enclosure are advanced
Body 15, exhaust gases passes 16, combustion chamber 21, air cavity 22, combustion gas cavity 23, burning line 24, flue gas pipeline 25, heat exchanger
26, air line 27, air blast 28, chimney 29, solid slag Burning Room 31, slag charge import 32, dust recovery port 33.
Specific embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from start to finish
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, is only used for explaining the present invention, and is not considered as limiting the invention.
The present invention proposes a kind of solid slag recovery type electronic waste pyrolysis installation, and embodiments in accordance with the present invention, Fig. 1 are root
According to the electronic waste front-end preprocessor system schematic diagram of solid slag recovery type electronic waste pyrolysis installation of the present invention, Fig. 2 is the present invention
The structural representation of solid slag recovery type electronic waste pyrolysis installation, sees figures.1.and.2 shown, and the device includes：Before electronic waste
End pretreatment system, electronic waste pyrolytic reaction system and solid slag incinerator, wherein, with reference to shown in Fig. 1, the electronic waste
Front-end preprocessor system includes：Raw material processing system and metal recovery system, the raw material processing system include breaker and
Sorting unit, for sorting electronic waste for metal part and organic matter fractions；The metal recovery system includes acidleach pond
And electrolytic cell, electronic waste raw material sends into after simply disassembling in the breaker and crushed, and raw material is crushed to 0-
The electronic waste particle of 30mm, is then fed into the sorting unit and is sorted, by sorting be metal part and organic matter portion
Point, the metal part that sorting is obtained is sent in the acidleach pond, is added thereto to strong acid solution, after metal is completely dissolved,
Remaining add through pyrolysis reactor after thermogenetic 90-140 DEG C of flue gas drying without metal part, with aforementioned obtain organic
Matter part mixes, and entering pyrolysis reactor carries out pyrolytic reaction, the strong acid solution rich in metal ion obtained after dissolving metal
Sending in electrolytic cell carries out cell reaction, reclaims metallic copper etc..
Embodiments in accordance with the present invention, the electrolytic cell anode material are 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, in electrolytic cell, temperature is
20-40 DEG C, the flue-gas temperature that the electronic waste pyrolytic reaction system is produced 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, 1 anode material of the electrolytic cell are graphite, and cathode material is copper coin.The electrolysis
The voltage range in pond is 0.1-3V, and current density is 3A/dm2, in electrolytic cell, temperature is 35 DEG C.Can reclaim in electrolytic cell 1
More pure copper, the purity of product copper are close to 100%, reclaim the rate of recovery about 98% of the metallic copper of gained.
Embodiments in accordance with the present invention, 2 anode material of the electrolytic cell are graphite, and cathode material is proof gold plate.The electricity
The voltage range of Xie Chi is 0.1-3V, and current density is 8A/dm2, in electrolytic cell, temperature is 70 DEG C.Can return in electrolytic cell 1
More pure gold is received, the purity of product gold is close to 100%, reclaim the rate of recovery about 98% of the noble metal gold of gained.
Embodiments in accordance with the present invention, the strong acid solution are chloroazotic acid（V concentrated hydrochloric acids：V red fuming nitric acid (RFNA)=3:1）, sulfuric acid, hydrochloric acid,
The mixture of the strong acid such as nitric acid, hydrogen peroxide or Strong oxdiative solution or both, solution concentration 0.5-2mol/L.To described rich in gold
Alkali solid material is added in the strong acid solution of category ion, the pH value of solution is adjusted to neutral or faintly acid, to mitigate to rear
Non-metallic part in continuous workshop section's equipment, the corrosiveness of pipeline, and the acidleach pond, after draining, cleaning, by pyrolytic reaction
The flue gas drying of 120 DEG C of device heating unit generation, obtains pure metal-free solid portion.
Embodiments in accordance with the present invention, the concrete species of the electronic waste are unrestricted, can be household electrical appliance, information
The discarded electronic waste such as technology and telecommunication device, electronic and electrical equipment, detection control device, medical equipment.
Embodiments in accordance with the present invention, with reference to shown in Fig. 2, the electronic waste pyrolytic reaction system includes：Electronic waste
Pyrolysis reactor and combustion type heating system, wherein, the electronic waste pyrolysis reactor includes：Material pyrolization modules and reaction
Device housing 15, described combustion type heating system include：For producing the combustion type burner of heat smoke and being used for conveying heat
The reactor shell exhaust gases passes 16 of flue gas, the combustion type burner are connected with the reactor shell exhaust gases passes；
Wherein, the outer wrap of the reactor shell has insulation material, and the concrete material of the insulation material is unrestricted, as long as energy
High-efficiency insulated effect is enough played, and according to some embodiments of the present invention, insulation material of the present invention is preferably and is incubated
Cotton, and the outer surface galvanized iron sheet parcel in the heat-preservation cotton, improve heat-insulating property, and the radiating for reducing reactor wall is damaged
Lose；The material pyrolization modules are across the both sides of the reactor shell, and two ends of the material pyrolization modules are naked
The outside of the reactor shell is exposed at, the material pyrolization modules include shaped spiral housing 14 and propulsion spiral 10, wherein, described
The concrete material of shaped spiral housing is unrestricted, as long as the function with fire resistant anticorrosive, according to some realities of the present invention
Example is applied, shaped spiral housing of the present invention is preferably heat-resisting steel sheel, and thickness is preferably 5-8mm；The shaped spiral housing is from described
Reactor shell side extends through the opposite side of the reactor shell, the shaped spiral housing along the reactor enclosure intracoelomic cavity
The exposed outside in the reactor shell in two ends so that formed between the reactor shell and the shaped spiral housing
Confined space, the confined space constitute the reactor shell exhaust gases passes of the combustion type heating system, and burn the height for producing
Warm flue gas enters flue gas circulation passage, then transfers heat to its internal shaped spiral housing；Exposed in the reactor shell
Material inlet 11, slag charge outlet 12 and oil gas vent 13, and the material inlet is provided with the outside shaped spiral housing
The shaped spiral housing upper left quarter is located at, the slag charge outlet is located at the right lower quadrant of the shaped spiral housing, and the oil gas vent is located at
The shaped spiral housing upper right quarter.
Embodiments in accordance with the present invention, with reference to shown in Fig. 2, the propulsion spiral is located inside the shaped spiral housing, and
The propulsion spiral includes 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 identical with the shaped spiral housing, in the case where outside motor belt motor is dynamic with certain rotational speed, material is entered the propulsion spiral
To after the reactor, gradually it is pyrolyzed with the rising of temperature, while be advanced to, until being pyrolyzed before outlet
Finish, be pyrolyzed the pyrolysis gas for producing and be discharged from the oil gas vent, the slag charge after pyrolysis passes through from slag charge outlet discharge
The slag charge pipeline enters the solid slag Burning Room and carries out burning recycling, it is achieved that advance in pyrolysis, thing of being back to back
The function are continuously rapidly and efficiently pyrolyzed by material, energy-conserving and environment-protective and material.
Embodiments in accordance with the present invention, with reference to shown in Fig. 2, the combustion type burner includes：Air line 27, combustion gas
Pipeline 24, flue gas pipeline 25, slag charge pipeline, heat exchanger 26, combustion gas cavity 23, air cavity 22, combustion chamber 21, air blast 28 with
And chimney 29, described air line one end is connected with the heat exchanger, and the other end is connected with the air chamber body phase；The Gas Pipe
Line is connected with the gas chamber body phase, for providing combustion gas；Described flue gas pipeline one end is connected with the heat exchanger, the other end and institute
State reactor shell exhaust gases passes to be connected, for making the flue gas in the entrance heat exchanger described to being entered by the air blast
Air in heat exchanger is preheated；Described slag charge pipeline one end and the slag charge outlet phase for being located at the shaped spiral housing right lower quadrant
Even, the other end is connected with the slag charge import 32 for being located at 31 top of solid slag Burning Room, for solid slag recycling；The drum
Blower fan is connected with the heat exchanger respectively with chimney；The combustion gas cavity is connected with the air chamber body phase；The air cavity
It is connected with the solid slag Burning Room；The solid slag Burning Room and the combustion chamber, the combustion chamber and the reaction
Device housing exhaust gases passes are connected, for making air and combustion gas be burnt in the burning interior, it is to avoid flame directly burns
The shaped spiral housing.
Embodiments in accordance with the present invention, the concrete species of the air line are unrestricted, as long as can provide for fuel
Combustion air, air enter into the heat exchanger heat absorption by the air blast first, are added to the heat exchanger exit
Heat then enters into the air cavity by the air line to high temperature, by the air cavity enter back into combustion chamber and
Combustion gas mixing is burnt.
Embodiments in accordance with the present invention, the concrete species of the burning line are unrestricted, as long as combustion reaction can be
Combustion gas is provided.
Embodiments in accordance with the present invention, the concrete species of the burning line are unrestricted, as long as can be by combustion product
Flue gas entered in heat exchanger by this pipeline, according to some embodiments of the present invention, fume pipe of the present invention
Line is preferably flue gas exhausting pipe line.
Embodiments in accordance with the present invention, the concrete species of the slag charge pipeline are unrestricted, as long as can be by from the slag
The slag charge that material outlet is discharged is sent in the solid slag Burning Room by this pipeline and is burned.
Embodiments in accordance with the present invention, the heat exchanger are used for heat exchange between air and flue gas, heat exchanger respectively with institute
State air blast, chimney, flue gas pipeline to be connected with air line；Wherein, the concrete species of the heat exchanger is unrestricted, according to
Some embodiments of the present invention, heat exchanger of the present invention are preferably metallic recuperator or ceramic heat exchanger.
Embodiments in accordance with the present invention, described combustion chamber are both the combustion space of combustion gas, are the outlet of flue gas again, when
During as combustion space, first in burning Indoor Combustion, the high-temperature flue gas of generation are entered back in reactor enclosure body for combustion gas and air
Portion, burns and carry out avoiding thermal-flame from directly burning shaped spiral housing in burning interior；When exporting as fume emission, flue gas is certainly
Discharge herein, subsequently into heat exchanger, finally arranged to space outerpace from chimney.
Embodiments in accordance with the present invention, with reference to shown in Fig. 2, are additionally provided with dust recovery port 33 below the combustion chamber,
The dust for producing is burned for reclaiming solid slag in the solid slag Burning Room, the flame in the combustion type burner is by solid slag
All burn, the dust of generation enters into the dust recovery port and recycled.
Using the combustion type heating system as the electronic waste pyrolysis installation thermal source, and adopt heat exchanger side
Formula, combustion air are heated to high temperature, and the burning, atmosphere and pressure in device is more stable, high combustion efficiency.
Embodiments in accordance with the present invention, with reference to shown in Fig. 2, the solid slag incinerator includes：Solid slag Burning Room, for burning
Burn the solid slag produced by the electronic waste pyrolysis reactor.
In another aspect of the present invention, the invention provides one kind is carried out to electronic waste using foregoing device
The method of pyrolysis.Embodiments in accordance with the present invention, the method are comprised the following steps：
Step one：Feedstock treating：Electronic waste raw material enters the breaker and is crushed, then is sieved through sorting unit
Point, obtain metal and organic matter.
Step 2：Metal recovery：Metal part is sent in acidleach pond, after metal is completely dissolved, remaining without gold
After category part is through flue gas drying, mix with the organic matter fractions, entering reaction system carries out pyrolytic reaction, after dissolving metal
To strong acid solution rich in metal ion send in electrolytic cell and carry out cell reaction, reclaim metallic copper.
Electronic waste raw material is sent into after simply disassembling in the breaker and is crushed, and raw material is crushed to 0-
The electronic waste particle of 30mm, is then fed into the sorting unit and is sorted, by sorting be metal part and organic matter portion
Point, the metal part that sorting is obtained is sent in the acidleach pond, is added thereto to strong acid solution, after metal is completely dissolved,
Remaining add through pyrolysis reactor after thermogenetic 90-140 DEG C of flue gas drying without metal part, with aforementioned obtain organic
Matter part mixes, and entering pyrolysis reactor carries out pyrolytic reaction, the strong acid solution rich in metal ion obtained after dissolving metal
Sending in electrolytic cell carries out cell reaction, reclaims metallic copper etc..
Embodiments in accordance with the present invention, the electrolytic cell anode material are 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, in electrolytic cell, temperature is
20-40 DEG C, the flue-gas temperature that the electronic waste pyrolytic reaction system is produced 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, 1 anode material of the electrolytic cell are graphite, and cathode material is copper coin.The electrolysis
The voltage range in pond is 0.1-3V, and current density is 3A/dm2, in electrolytic cell, temperature is 35 DEG C.Can reclaim in electrolytic cell 1
More pure copper, the purity of product copper are close to 100%, reclaim the rate of recovery about 98% of the metallic copper of gained.
Embodiments in accordance with the present invention, 2 anode material of the electrolytic cell are graphite, and cathode material is proof gold plate.The electricity
The voltage range of Xie Chi is 0.1-3V, and current density is 8A/dm2, in electrolytic cell, temperature is 70 DEG C.Can return in electrolytic cell 1
More pure gold is received, the purity of product gold is close to 100%, reclaim the rate of recovery about 98% of the noble metal gold of gained.
Embodiments in accordance with the present invention, the strong acid solution are chloroazotic acid（V concentrated hydrochloric acids：V red fuming nitric acid (RFNA)=3:1）, sulfuric acid, hydrochloric acid,
The mixture of the strong acid such as nitric acid, hydrogen peroxide or Strong oxdiative solution or both, solution concentration 0.5-2mol/L.To described rich in gold
Alkali solid material is added in the strong acid solution of category ion, the pH value of solution is adjusted to neutral or faintly acid, to mitigate to rear
Non-metallic part in continuous workshop section's equipment, the corrosiveness of pipeline, and the acidleach pond, after draining, cleaning, by pyrolytic reaction
The flue gas drying of 120 DEG C of device heating unit generation, obtains pure metal-free solid portion.
Step 3：Open combustion type heating system：By the organic matter produced in above-mentioned steps one and two and without metal portion
It is distributed in the electronic waste pyrolytic reaction system, air enters heat exchanger via air blast, absorbs from the exhaust gases passes
After entering through the flue gas heat of the heat exchanger, then the air cavity is entered through the air line, and through the Gas Pipe
Line enters the combustion gas mixing burning of the combustion gas cavity, and the high-temperature flue gas for producing that burn enter into the reactor shell flue gas and lead to
Road, the flue gas in reactor shell exhaust gases passes are entered in heat exchanger by flue gas pipeline, and the air in Tube Sheet of Heat Exchanger is high
While warm flue gas, flue gas is cooled, and then by smoke stack emission to Outdoor Space, whole heating process is flue gas
Continuous burning.
Embodiments in accordance with the present invention, with reference to shown in Fig. 2, the combustion type burner includes：Air line, Gas Pipe
Line, flue gas pipeline, slag charge pipeline, heat exchanger, combustion gas cavity, air cavity, combustion chamber, air blast and chimney, the air
Pipeline one end is connected with the heat exchanger, and the other end is connected with the air chamber body phase；The burning line and the combustion gas cavity
It is connected, for providing combustion gas；Described flue gas pipeline one end is connected with the heat exchanger, the other end and the reactor shell flue gas
Passage is connected, for making the flue gas in the entrance heat exchanger enter the air entered in the heat exchanger by the air blast
Row preheating；Described slag charge pipeline one end is connected with the slag charge outlet for being located at the shaped spiral housing right lower quadrant, the other end with positioned at institute
The slag charge import for stating solid slag Burning Room top is connected, for solid slag recycling；The air blast and chimney respectively with described
Heat exchanger is connected；The combustion gas cavity is connected with the air chamber body phase；The air cavity is connected with the solid slag Burning Room
Logical；The solid slag Burning Room and the combustion chamber, the combustion chamber are connected with the reactor shell exhaust gases passes,
For making air and combustion gas be burnt in the burning interior, it is to avoid flame directly burns the shaped spiral housing.
Step 4：Material pyrolytic process：After combustion system is stable, shaped spiral housing is heated to 600-700 DEG C, enters in material
Mouth is put into material, and material enters into the back forward movement side of propulsion spiral and 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 solid slag is discharged from slag charge outlet.
Embodiments in accordance with the present invention, with reference to shown in Fig. 2, the exposed shaped spiral housing in the reactor enclosure external body
On be provided with material inlet, slag charge outlet and oil gas vent, and the material inlet be located at the shaped spiral housing upper left quarter, institute
The right lower quadrant that slag charge outlet is located at the shaped spiral housing is stated, the oil gas vent is located at the shaped spiral housing upper right quarter.
Step 5：Solid slag burning process：The pyrolysis solid slag that discharges is exported through the slag charge pipeline and slag charge from the slag charge
Import is entered is burnt in the solid slag Burning Room, and the dust of generation enters the dust recovery port for being located at the combustion chamber bottom
Reclaimed.
Inventor has found that the device according to embodiments of the present invention, raw material obtain metal and organic through crushing and screening
Matter, metal part are sent in acidleach pond, after metal is completely dissolved, remaining without metal part through flue gas drying after, and front
The organic matter fractions mixing for obtaining is stated, reaction member is entered and is realized that material of being back to back, material are tiled in pyrolysis reactor,
Contact with shaped spiral housing fully, high-temperature spiral housing is heated to material by radiation and heat conduction two ways, and therefore material can
Fully quickly it is pyrolyzed, and material is pushed into spiral in pyrolytic process and is gradually pushed ahead, it is achieved that is advanced in pyrolysis
Function；By the use of combustion type heating system as the thermal source of pyrolysis reactor, its fuel can both be that high heating value combustion gas is alternatively low
Calorific value fuel gas, combustion air are preheating to high temperature through heat exchanger, it is achieved thereby that efficient stable burning, while the solid residue for producing
Enter into solid slag burning interior to be burned, it is achieved that the further process of slag charge, reduce pollution.Locate in advance electronic waste front end
Reason system avoids the severe contamination of heavy metal, and combustion type heating system, pyrolysis reactor and solid slag incinerator are connected to one
Rise, it is achieved that material of being back to back, material are by the work(such as continuous quick fully pyrolysis and energy-efficient, contamination-free residual
Energy.
Embodiment：
Using liquefied petroleum gas as combustion gas, liquefied petroleum gas tolerance is the solid slag recovery type electronic waste pyrolysis installation
0.8Nm3/ h, air capacity are 18Nm3/ h, electronic waste material（Predominantly circuit board, electric wire and keyboard）Be made into 25mm
Grain, inlet feed amount are 2kg/h, and the dust for finally giving is 0.2kg/h, and the pyrolysis oil gas of generation is 0.6Nm3/ h, it is achieved that
It is back to back material.In pyrolytic process, constant temperature is maintained at 700 DEG C, thermal source good stability.
Oil gas chemical examination composition is as follows：
1 electronic waste pyrolysis gas composition of table
| Title | H2 | CO2 | O2 | N2 | CH4 | CO |
| Content (%) | 45.6 | 8.4 | 1.8 | 5.3 | 23.5 | 15.4 |
Solid residue after to pyrolysis detects, it is found that main component is the carbon and metal that can not be pyrolyzed, and metal is mainly wrapped
Copper, nickel and iron is included, the composition that resin and glass fibre etc. can be pyrolyzed is not contained, pyrolysis effect is good.
In describing 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 or hint indication 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, and it is not understood that
For indicating or implying relative importance or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ",
The feature of " second " can be expressed or implicitly include one or more this feature.In describing the invention, unless
It is otherwise noted, " multiple " are meant that two or more.
In describing the invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected, or being detachably connected, or be integrally connected；Can
Be mechanically connected, or point connection；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
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 specific features, the knot described with reference to the embodiment or example
Structure, material or feature are contained at least one embodiment or example of the present invention.In this manual, to above-mentioned term
Schematic representation is not necessarily referring to identical embodiment or example.And, the specific features of description, structure, material or spy
Point can be combined in any one or more embodiments or example in an appropriate manner.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that：Not
These embodiments can be carried out with multiple changes, modification, replacement and modification in the case of the principle and objective that depart from the present invention, this
The scope of invention is limited by claim and its equivalent.
Claims (10)
1. a kind of solid slag recovery type electronic waste pyrolysis installation, it is characterised in that include：Electronic waste front-end preprocessor system,
Electronic waste pyrolytic reaction system and solid slag incinerator, wherein,
The electronic waste front-end preprocessor system includes：Raw material processing system and metal recovery system, the Feedstock treating system
System includes breaker and sorting unit, for sorting electronic waste for metal part and organic matter fractions；The metal is returned
Receipts system includes acidleach pond and electrolytic cell, and the metal part for obtaining sorting is sent in the acidleach pond, is added thereto to
Strong acid solution, after metal is completely dissolved, remaining produces through the electronic waste pyrolytic reaction system without metal part
After flue gas drying, mix with described organic matter fractions, entering the electronic waste pyrolytic reaction system carries out pyrolytic reaction, gold
The strong acid solution rich in metal ion obtained after category dissolving is sent in the electrolytic cell and carries out cell reaction, reclaims metallic copper；
The electronic waste pyrolytic reaction system includes：Electronic waste pyrolysis reactor and combustion type heating system, wherein, described
Electronic waste pyrolysis reactor includes：Material pyrolization modules and reactor shell, the material pyrolization modules are across the reaction
The both sides of device housing, and the exposed outside in the reactor shell in two ends of the material pyrolization modules, the thing
Material pyrolization modules include shaped spiral housing and propulsion spiral, and wherein, the shaped spiral housing is from the reactor shell side along described
Reactor enclosure intracoelomic cavity extends through the opposite side of the reactor shell, and two ends of the shaped spiral housing are exposed described
The outside of reactor shell so that form confined space, the confined air between the reactor shell and the shaped spiral housing
Between constitute the reactor shell exhaust gases passes of the combustion type heating system；
The combustion type heating system includes：For producing the combustion type burner of heat smoke and for conveying the anti-of heat smoke
Device housing exhaust gases passes, the combustion type burner are answered to be connected with the reactor shell exhaust gases passes；The combustion type
Burner includes：Air line, burning line, flue gas pipeline, slag charge pipeline, heat exchanger, combustion gas cavity, air cavity, combustion
Room, air blast and chimney is burnt, described air line one end is connected with the heat exchanger, the other end and the air chamber body phase
Even；The burning line is connected with the gas chamber body phase, for providing combustion gas；Described flue gas pipeline one end and the heat exchanger phase
Even, the other end is connected with the reactor shell exhaust gases passes, for making the flue gas in the entrance heat exchanger to by described
The air that air blast is entered in the heat exchanger is preheated；Described slag charge pipeline one end be located at the shaped spiral housing right lower quadrant
Slag charge outlet be connected, the other end is connected with the slag charge import for being located at the solid slag Burning Room top, is reclaimed again for solid slag sharp
With；The air blast is connected with the heat exchanger respectively with chimney；The combustion gas cavity is connected with the air chamber body phase；Described
Air cavity is connected with the solid slag Burning Room；The solid slag Burning Room and the combustion chamber, the combustion chamber with
The reactor shell exhaust gases passes are connected, for making air and combustion gas be burnt in the burning interior, it is to avoid flame
The shaped spiral housing is directly burnt；
The solid slag incinerator includes：Solid slag Burning Room, for burning by consolidating that the electronic waste pyrolysis reactor is produced
Body slag charge.
2. solid slag recovery type electronic waste pyrolysis installation according to claim 1, it is characterised in that exposed in the reaction
Material inlet and oil gas vent is additionally provided with the shaped spiral housing of device hull outside, and the material inlet is positioned at described
Shaped spiral housing upper left quarter, the oil gas vent are located at the shaped spiral housing upper right quarter.
3. solid slag recovery type electronic waste pyrolysis installation according to claim 1, it is characterised in that under the combustion chamber
Side is additionally provided with dust recovery port, burns the dust for producing for reclaiming solid slag in the solid slag Burning Room.
4. the solid slag recovery type electronic waste pyrolysis installation according to any one of claim 1-3, it is characterised in that described
Propulsion spiral is located inside the shaped spiral housing, and the propulsion spiral includes helical axis and helical blade, the helical-blade
Piece is fixed on the helical axis and is arranged to be rotated coaxially with the helical axis, and the helical axis is in the material inlet
The shaped spiral housing is stretched out in side, and the length of the helical blade is identical with the shaped spiral housing.
5. the solid slag recovery type electronic waste pyrolysis installation according to any one of claim 1-3, it is characterised in that described
Electrolytic cell anode material be graphite, cathode material be titanium plate, corrosion resistant plate, copper coin and proof gold plate, the voltage model of the electrolytic cell
Enclose for 0.1-3V, current density is 1-5A/dm2, in electrolytic cell, temperature is 20-40 DEG C, the electronic waste pyrolytic reaction system
The flue-gas temperature of generation is 90-140 DEG C, and the strong acid solution is the concentrated sulfuric acid or chloroazotic acid.
6. the solid slag recovery type electronic waste pyrolysis installation according to any one of claim 1-3, it is characterised in that described
The outer wrap of reactor shell has insulation material.
7. solid slag recovery type electronic waste pyrolysis installation according to claim 6, it is characterised in that the insulation material is
Heat-preservation cotton, and heat-preservation cotton external application galvanized iron sheet parcel.
8. the solid slag recovery type electronic waste pyrolysis installation according to any one of claim 1-3, it is characterised in that described
Shaped spiral housing is heat-resisting steel sheel, and thickness is 5-8mm.
9. the solid slag recovery type electronic waste pyrolysis installation described in a kind of utilization claim 1-3 is pyrolyzed to electronic waste
Method, it is characterised in that comprise the following steps：
Step one：Feedstock treating：Electronic waste raw material enters the breaker and is crushed, then is sieved through sorting unit
Point, obtain metal and organic matter；
Step 2：Metal recovery：Metal part is sent in acidleach pond, after metal is completely dissolved, remaining without metal portion
After lease making flue gas drying, mix with the organic matter fractions, entering reaction system carries out pyrolytic reaction, obtains after dissolving metal
Strong acid solution rich in metal ion is sent in electrolytic cell and carries out cell reaction, reclaims metallic copper；
Step 3：Open combustion type heating system：Send by the organic matter produced in above-mentioned steps one and two and without metal portion
Enter in the electronic waste pyrolytic reaction system, air enters heat exchanger via air blast, absorb and enter from the exhaust gases passes
After through the flue gas heat of the heat exchanger, then the air cavity is entered through the air line, and enter through the burning line
Enter the combustion gas mixing burning of the combustion gas cavity, the high-temperature flue gas for producing that burn enter into the reactor shell exhaust gases passes,
Flue gas in reactor shell exhaust gases passes is entered in heat exchanger by flue gas pipeline, and the air in Tube Sheet of Heat Exchanger is by high temperature cigarette
While gas is heated, flue gas is cooled, and then by smoke stack emission to Outdoor Space, whole heating process is continuous to flue gas
Burning；
Step 4：Material pyrolytic process：After combustion system is stable, shaped spiral housing is heated, and is put into material, material in material inlet
The back forward movement side for entering into propulsion spiral is pyrolyzed, and finishes until moving to slag charge outlet and being pyrolyzed, and pyrolysis is produced
Gas is discharged from oil gas vent, and remaining pyrolysis solid slag is discharged from slag charge outlet；
Step 5：Solid slag burning process：The pyrolysis solid slag that discharges is exported through the slag charge pipeline and slag charge import from the slag charge
Enter and burnt in the solid slag Burning Room, the dust recovery port that the dust of generation is entered positioned at the combustion chamber bottom is carried out
Reclaim.
10. method according to claim 9, it is characterised in that in the step 4, the shaped spiral housing is heated to
600-700℃.
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| CN108224440A (en) * | 2018-03-08 | 2018-06-29 | 浙江新三友环保工程技术有限公司 | A kind of closed upright garbage incinerating kiln |
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