CN105234160A - Automatic recovery method of electronic products - Google Patents
Automatic recovery method of electronic products Download PDFInfo
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- CN105234160A CN105234160A CN201510791583.9A CN201510791583A CN105234160A CN 105234160 A CN105234160 A CN 105234160A CN 201510791583 A CN201510791583 A CN 201510791583A CN 105234160 A CN105234160 A CN 105234160A
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- leaching
- electronic product
- screening
- recovery method
- crushing
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- 238000002386 leaching Methods 0.000 claims abstract description 70
- 238000012216 screening Methods 0.000 claims abstract description 64
- 238000000926 separation method Methods 0.000 claims abstract description 44
- 238000007885 magnetic separation Methods 0.000 claims abstract description 42
- 239000000463 material Substances 0.000 claims abstract description 10
- 238000000498 ball milling Methods 0.000 claims abstract description 9
- 229910052751 metal Inorganic materials 0.000 claims description 41
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- 238000003801 milling Methods 0.000 claims description 33
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- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 22
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- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 241000931705 Cicada Species 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
- B09B3/40—Destroying solid waste or transforming solid waste into something useful or harmless involving thermal treatment, e.g. evaporation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
- B09B3/80—Destroying solid waste or transforming solid waste into something useful or harmless involving an extraction step
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B5/00—Operations not covered by a single other subclass or by a single other group in this subclass
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention provides an automatic recovery method of electronic products. The recovery method comprises the steps of disassembly, grinding, screening, crushing, magnetic separation, ball milling, separation and leaching, and is finished by a recovery system; and the recovery system comprises a disassembly system, a grinding system, a screening system, a crushing system, a magnetic separation system, a ball milling system, a separation system, a leaching system, and conveying systems arranged between the disassembly system and the grinding system, between the grinding system and the screening system, between the screening system and the crushing system, between the crushing system and the magnetic separation system, between the magnetic separation system and the ball milling system, between the ball milling system and the separation system and between the separation system and the leaching system. The recovery method can efficiently and economically recover useful materials in the electronic products, and enables the whole recovery process to become efficient, sequential, economical, environment-friendly, automatic and safe.
Description
Technical field
The present invention relates to garbage reclamation technique field, particularly relate to a kind of electronic product automatic recovery method.
Background technology
Along with constantly bringing forth new ideas and the update of electric equipment products of science and technology, a large amount of waste electric products has become the fastest and the most unmanageable class solid waste of growth rate.Electron wastes also known as electronic waste, the precision electronic device instrument etc. comprising various waste computer, communication equipment, household electrical appliance and be eliminated.The title that electron wastes has " mine, city ", containing multiple metals with high recovery value such as gold, copper, aluminium in electron wastes, the taste of its metal is tens even hundred times of native deposits, therefore, the metal in recycling electron wastes has great importance for the harmless treatment of electronic waste.Estimate according to United Nations Environment Programme, the whole world is annual produces about 4000 ~ 6,000 ten thousand tons of electronic wastes, and wherein US and European accounts for 1/3 and 1/4 respectively.China is the second largest electron wastes producing country being only second to the U.S..In addition, external electronic waste pours into China continually.It is reported, " electronic waste " in the whole world 90% enters Asia, wherein about 80% enters China's Mainland.In all kinds of electron wastes, wherein waste printed circuit board on average accounts for 4% of total amount.But in the electronic products such as the panel computer be eliminated or turnover rate is high, notebook computer, mobile phone, circuit board proportion is up to 40%, and what in various metal, content was the highest is copper, and recovery value the highest be gold.
Consider from environmental, containing multiple harmful substances in waste and old circuit board, wherein comprise the organic component that the heavy metal elements such as lead, chromium, cadmium, mercury and brominated flame retardant, polycyclic aromatic hydrocarbon, Polychlorinated biphenyls etc. are poisonous.Most poisonous and harmful component all has bioaccumulation, is difficult to be degraded by natural environment simultaneously.If dealt with improperly, once entered environment, by the extremely serious ecological environment of generation and human health risk.
Consider from the angle of resource, the content of the Jin Hetong in waste and old circuit board is respectively up to 3300g/t and 26.8%, and the content of the especially noble metal such as Au, Ag, Pd of metallic element is wherein all higher than the taste in other corresponding ores.Meanwhile, relative to general ore, other components of waste and old circuit board are very little on the impact of metal leaching process, and do not need complicated preprocessing process, if reasonably recycle it, its economic benefit is very considerable.
So no matter the gold in recovery waste and old circuit board and copper consider all have very large realistic meaning, also meet the theory of recycling economy from environmental or resource view.
Summary of the invention
The invention provides a kind of electronic product automatic recovery method, efficiently solve existing electronic product and reclaim insufficient, that recovery automaticity is not high, cost recovery is high, Footwall drift purity is not high technical problem, and then achieve the technique effect that electronic product is recycled fully, recovery automaticity is high, Reclaiming benefit is high and Footwall drift purity is high.
For solving the problems of the technologies described above, the invention provides a kind of electronic product automatic recovery method, described recovery method comprises the following steps: disassemble, roll, screen, fragmentation, magnetic separation, ball milling, sorting, leaching, described recovery method completes in recovery system, described recovery system comprises disassembly system, rcc system, screening system, crushing system, magnetic separation system, milling system, separation system, leaching system and be arranged on disassembly system and rcc system, rcc system and screening system, screening system and crushing system, crushing system and magnetic separation system, magnetic separation system and milling system, milling system and separation system, induction system between separation system and leaching system, described induction system comprises some conveyers, at disassembly system and rcc system, rcc system and screening system, screening system and crushing system, crushing system and magnetic separation system, magnetic separation system and milling system, milling system and separation system, two conveyers are at least provided with respectively between separation system and leaching system.
Wherein, described induction system comprises some conveyers, at disassembly system and rcc system, rcc system and screening system, screening system and crushing system, crushing system and magnetic separation system, magnetic separation system and milling system, milling system and separation system, is at least provided with two conveyers respectively between separation system and leaching system.
Wherein, described disassembly system comprises some disassemble machines, and disassemble machine is for being separated electronic product to be dismantled from circuit board, and described disassemble machine comprises: base; Controller, described controller is fixed on and is arranged on base; Positioning component, described positioning component is arranged on described base, and is electrically connected with described controller, and described positioning component is used for being controlled by described controller, and described circuit board is limited in the first predeterminated position; And heating adsorption assembly, described heating adsorption assembly moves and is arranged on described base, and be electrically connected with described controller, described heating adsorption assembly is used for being controlled by described controller and moving to the second predeterminated position to heat described electronic product to be dismantled, and controlled by described controller and move to the 3rd predeterminated position to adsorb described electronic product to be dismantled, described electronic product to be dismantled is disassembled from described circuit board.Described electronic product disassemble machine comprises a base, a controller, a positioning component and a heating adsorption assembly.Described controller is fixed on described base, and is connected with described positioning component and described heating adsorption electrical component, for controlling described positioning component and described heating adsorption assembly.Described positioning component is arranged on described base, for being controlled described circuit board to be fixed on the first predeterminated position by described controller.Described heating adsorption assembly is removable to be arranged on described base, the second predeterminated position is moved to heat described electronic product to be dismantled for being controlled by described controller, and controlled by described controller and move to the 3rd predeterminated position to adsorb described electronic product to be dismantled, thus described electronic product to be dismantled is disassembled from described circuit board.Described first predeterminated position, described second predeterminated position and described 3rd predeterminated position input by an input block.Described second predeterminated position and described 3rd predeterminated position can be identical or not identical.Described controller is fixed in described base.Described controller is a programmable logic controller (PLC).Described positioning component comprises a transmission device, one first actuating device, a retention device and a first sensor.In the present invention, described transmission device comprises two driving members and two pairs of runners.Each driving member is a belt.Described two driving members are spaced.Described two driving members are used for the described circuit board of common carrying.In the present invention, described circuit board is contained in a carrier, and is arranged on described two driving members by described carrier.In the present invention, described carrier is formed with two through hole.Each driving member is sheathed in the pair of turning wheels of a correspondence.In the present invention, described two pairs of runners are rotationally connected with described base.In the present invention, described first actuating device transmits described carrier and described circuit board motion extremely described first predeterminated position for activating described driving member.Described first actuating device comprises one first rotating shaft and one first actuated piece.The runner in often pair of runner is fixed in described first rotating shaft.In the present invention, described first actuated piece is a servo motor.Described first actuated piece is fixed on described first rotating shaft.Described first actuated piece is used for being controlled to activate described first axis of rotation by described controller, makes described runner rotate and drive described driving member to transmit described carrier and described circuit board extremely described first predeterminated position.In the present invention, described retention device is arranged between described two driving members.Described retention device can stop the motion of described circuit board away from described base motions.In the present invention, described retention device also can, towards described base motions, make described circuit board by described retention device.In invention, described retention device is one first cylinder.Described retention device comprises one first cylinder body and a first piston bar.First cylinder body of described retention device is fixed between described two driving members, and the first piston bar of described retention device is between described two transmissions.Described retention device is used for making described retention device away from described base motions by the first piston bar activating described retention device away from described base motions.In the present invention, described first sensor is fixed between described two driving members, and relative to the first end of described retention device near described two driving members.Described first sensor is for responding to described carrier and described circuit board, and when sensing described carrier and described circuit board, send one first induced signal to described controller, make described controller control described first actuated piece and activate described first axis of rotation, and control described retention device away from described base motions.In the present invention, described heating adsorption assembly is arranged at described two driving members.In the present invention, described heating adsorption assembly is arranged at the left side of described two driving members.Described heating adsorption assembly comprises a vacuum slot, a hot-blast spray nozzle and one second actuating device.In the present invention, described vacuum slot be used for air-breathing adsorb described electronic product to be dismantled or blow make described electronic product to be dismantled depart from described vacuum slot.In the present invention, described hot-blast spray nozzle is for blowing out hot blast to be separated described electronic product to be dismantled.In the present invention, described second actuating device moves to described second predeterminated position for activating described hot-blast spray nozzle from one first initial position, and activates described vacuum slot and move to described 3rd predeterminated position from one second initial position.In the present invention, described first initial position and described second initial position input by described input block.Described second actuating device comprises one second actuated piece and one the 3rd actuated piece.Described second actuated piece is connected to described vacuum slot and described hot-blast spray nozzle.Described second actuated piece is for activating described vacuum slot and described hot-blast spray nozzle towards described base motions or away from described base motions.In the present invention, described second actuated piece is one second cylinder.Described second actuated piece comprises one second cylinder body and one second piston rod.Second cylinder body of described second actuated piece is connected to described 3rd actuated piece.Second piston rod of described second actuated piece is fixed on described vacuum slot and described hot-blast spray nozzle.Described second actuated piece is used for activating described vacuum slot and described hot-blast spray nozzle towards described base motions or away from described base motions by the second piston rod of described second actuated piece.Described 3rd actuated piece is arranged on described base, and is connected with described second actuated piece.Described 3rd actuated piece drives described vacuum slot and described hot-blast spray nozzle to be parallel to described drive member for activating described second actuated piece.In the present invention, described 3rd actuated piece is one the 3rd cylinder.Described 3rd actuated piece comprises one the 3rd cylinder body and one the 3rd piston rod.3rd cylinder body of described 3rd actuated piece is connected to described base.3rd piston of described 3rd actuated piece is fixed on the second cylinder body of described second actuated piece.Described 3rd actuated piece activates described second actuated piece by the 3rd piston rod of described 3rd actuated piece and drives described vacuum slot and described hot-blast spray nozzle to be parallel to described drive member.When described electronic product to be dismantled disassembled by needs, described in contain circuit board carrier be placed on described two driving members.Described first sensor responds to described circuit board, and sends described first signal to described controller, makes described controller control described first actuated piece and activates described first axis of rotation, and control described retention device away from described base motions.Described first rotating shaft drives described runner to rotate, and makes described driving member transmit described carrier and described circuit board motion to described first predeterminated position by described retention device retardation motion.Described second actuated piece and described 3rd actuated piece are controlled jointly to activate described hot-blast spray nozzle by described controller and move to described second predeterminated position, and when described hot-blast spray nozzle moves to described second predeterminated position, control described hot-blast spray nozzle blowout hot blast, and record the time of described hot-blast spray nozzle blowout hot blast.Described controller is when described record time is up first scheduled time, control described second actuated piece and described 3rd actuated piece jointly to activate described vacuum slot and move to described 3rd predeterminated position, and when described vacuum slot moves to described 3rd predeterminated position, control described vacuum slot air-breathing to adsorb described electronic product to be dismantled.In the present invention, described controller is after described vacuum slot air-breathing one first scheduled time, control described second actuated piece and described 3rd actuated piece to activate described vacuum slot and move to one the 4th predeterminated position, and when described vacuum slot moves to described 4th predeterminated position, blew for one second scheduled time, make described electronic product to be dismantled depart from described vacuum slot, described electronic product to be dismantled is reclaimed.In the present invention, described controller is also after described vacuum slot blows described second scheduled time, control described second actuated piece and described 3rd actuated piece to activate described hot-blast spray nozzle and reset to described first initial position, and activate described vacuum slot and reset to described second initial position.In the present invention, described positioning component also comprises one second sensor.Described second sensor is fixed between described two driving members, and relative to second end relative to described first end of described first sensor near described two driving members.Described second sensor for responding to described circuit board, and when sensing described circuit board, sends one second induced signal to described controller, makes described controller control described first actuated piece and stops activating described first axis of rotation.In the present invention, described positioning component also comprises a positioner.Described positioner is arranged between described two driving members, and between described first sensor and described retention device.In the present invention, described positioner comprises two actuating devices and two locating parts.Described two actuating devices are fixed between described two driving members, for activating the through hole that described two locating parts pierce on described carrier away from described base motions, locate described carrier.In the present invention, described actuating device also activates the through hole that described two locating parts pass on described carrier towards described base motions, make described carrier and the circuit board that is contained on described carrier by more described locating part.In the present invention, each actuating device is a four-cylinder.Each actuating device comprises one the 4th cylinder body and one the 4th piston rod.4th cylinder body of each actuating device is fixed between described two driving members.4th piston rod of each actuating device is fixed on a locating part.Described two actuating devices are used for activating described two locating parts away from described base motions by the 4th piston rod of described two actuating devices.In the present invention, described positioning component also comprises a detecting unit.In the present invention, described detecting unit is a sensor.Described detecting unit is fixed on described positioner, for responding to described circuit board, and when sensing described circuit board, send a detection signal to described controller, make described controller after continuous reception to described detection signal one predetermined amount of time, control more described actuating device and activate more described locating part away from described base motions, and control described retention device towards described base motions.In the present invention, more described actuating device also after first scheduled time, is controlled to activate more described locating part towards described base motions described in the described vacuum slot air-breathing of control by described controller.In the present invention, described heating adsorption assembly also comprises one the 3rd actuating device.Described 3rd actuating device and described second actuating device jointly activate described vacuum slot and move to described 3rd predeterminated position from described second initial position.In the present invention, described second actuated piece is connected to described vacuum slot by described 3rd actuating device.Described 3rd actuating device is for activating described vacuum slot towards described base motions or away from described base motions.In the present invention, described 3rd actuating device is a pen cylinder.Obviously, described 3rd actuating device also can be the cylinder of other types.Described 3rd actuating device comprises one the 5th cylinder body and one the 5th piston rod.5th piston rod of described 3rd actuating device is fixed on described second actuating device.5th cylinder body of described 3rd actuating device is fixed on described vacuum slot.Described 3rd actuating device activates described vacuum slot towards described base motions or away from described base motions by the 5th piston rod of described 3rd actuating device.In the present invention, described heating adsorption assembly also comprises an adjusting device.In the present invention, described adjusting device comprises a pair of guide rails, one first regulating part, one second pair of guide rail and one second regulating part.The bottom of two guide rails of described pair of guide rails is all formed with two first accepting grooves, for accommodating described second pair of guide rail, makes described second pair of slide be connected to described pair of guide rails.Described first regulating part comprises one first screw rod and one first slide block.Described first screw rod is connected to described pair of guide rails rotationally, and between two guide rails being arranged at described pair of guide rails.Described first screw rod rotates for responding the operation of user.Described first slide block is fixedly connected on described 3rd actuated piece, and slip is bolted in described first screw rod.Described first slide block is used for being driven by described first screw rod and being parallel to described drive member, makes described hot-blast spray nozzle and described vacuum slot be parallel to described drive member.Described second pair of guide rail is fixed on described base.In the present invention, described second pair of guide rail is basically perpendicular to described pair of guide rails.Two guide rails in described second pair of guide rail are spaced.In the present invention, described second regulating part comprises one second screw rod and one second slide block.Described second screw rod is connected to described base rotationally, and between two guide rails being arranged at described second pair of guide rail.Described second screw rod rotates for responding the operation of user.Described second slide block is fixedly connected on described pair of guide rails, and slip is bolted in described second screw rod.Described second slide block is used for being driven by described second screw rod and towards described drive member or away from described drive member, making described hot-blast spray nozzle and described vacuum slot towards described drive member or away from described drive member.In the present invention, described heating adsorption assembly also comprises a pedestal.Described pedestal is fixedly connected on described second slide block and described 3rd actuated piece.Described pedestal comprises a first surface and relative to the second surface of described first surface.In the present invention, the first surface of described pedestal is the lower surface of described pedestal, and the second surface of described pedestal is the upper surface of described pedestal.The first surface of described pedestal is formed with at least one second accepting groove.In the present invention, the quantity of described second accepting groove is two.More described second accepting groove, for accommodating two guide rails of described second pair of guide rail, makes described pedestal be slidably connected to described second pair of guide rail.Described second slide block is fixedly connected on the first surface of described pedestal, and described 3rd actuated piece is fixedly connected on the second surface of described pedestal.
Or, described disassembly system comprises some seperators, described seperator comprises frame, hopper, hot blast chamber furnaced, hot air duct, air-heater, the top of described frame is provided with hopper, the below of described hopper is provided with hot blast chamber furnaced, described hot blast chamber furnaced side is provided with air-heater, and described air-heater is connected with hot blast chamber furnaced by hot air duct.Hot blast chamber furnaced comprises outer stove, interior stove, hot blast disperser, electric rotating machine, temperature sensor, and described outer stove is fixedly mounted in frame, and the inside of described outer stove is provided with coaxial interior stove, and described outer stove and interior stove are respectively equipped with outer fire door and interior fire door.One end of interior stove is connected with electric rotating machine, and the other end of interior stove is connected with air-heater by hot air duct.The inside of interior stove is provided with hot blast disperser, and described hot blast disperser evenly has hot blast dispersion hole, and described hot blast disperser is connected with hot air duct.The inside of interior stove is also provided with temperature sensor.Air-heater can adopt electric-heating heat blower fan or combustion type air-heater, adopts Hot-blast Heating to carry out separate electronic components and parts, compared with other modes, heat more even, being uniformly distributed and precisely controlling of furnace temperature in seperator can be realized, improve heat utilization rate, reduce molten tin cost.The present invention adopts concentric double furnace structure, not only can prevent interior stove heat loss, improves efficiency of utilization, is conducive to energy-conservation, and outside stove can connect gas processing device, prevents waste gas from leaking, is conducive to environmental protection.The top of hot blast chamber furnaced is provided with automatic furnace gate opening gear, described automatic furnace gate opening gear comprises the mechanical, electrical magnet of lift nut, guide rail, described electromagnet has two, run through respectively and be fixed on outer fire door, two electromagnet tops are connected to each other by cross bar and are integrated, described lift nut machine comprises lifting motor, screw mandrel, feed screw nut, described feed screw nut is fixed on the middle part of cross bar, the center of feed screw nut is provided with the screw mandrel of rotatable engagement, one end of described screw mandrel is connected with lifting motor, and the both sides of described outer fire door are provided with guide rail.Useless electronic product quantitative storage is existed in hopper, fire door in being captured by electromagnet, and after upwards promoting open interior fire door to certain altitude by lift nut machine, guide rail along outer fire door both sides moves horizontally certain distance (move horizontally and can adopt pneumatic or hydraulic drive, also can adopt the mode of driven by motor).After door opened in confirming, then the discharge door of hopper is opened, old circuit board is made to enter interior stove, by lift nut machine after charging, interior fire door is closed in electromagnet teamwork, air-heater (electric heating and combustion gas heat) is opened after completing automated packing, by the hot blast disperser in interior stove, hot blast is quick, evenly to deliver in stove everywhere, open electric rotating machine, hot blast temperature and hot blast rate is regulated by in-furnace temperature sensor feedback information in rotation process, thus optimum Economical Temperature in-furnace temperature being constant at detin carries out electronic devices and components separation.
Wherein, described rcc system comprises some four burnishing-in roller rollers, send into four burnishing-in roller rollers roll disassembling electronic product, the resin RESEARCH OF PYROCARBON of glass fibre interlayer and glass layer and metal interlevel is come off, and glass fabric and metal level dissociate in the form of sheets completely.Rcc system comprises one-level four burnishing-in roller roller and secondary four burnishing-in roller roller.The useless circuit board having removed electronic product is carried out pyrolysis at 450-650 DEG C, makes the resin at high temperature pyrolysis carbonization between adhesive glass fiber cloth and metal level form carbon dust.
Wherein, described screening system is for screening mixture: utilize vibrating screening device to sub-elect carbon dust in the mixture of glass fiber sheets, sheet metal and carbon dust; For the material that one-level four burnishing-in roller roller screening rear section is not separated completely, return one-level four burnishing-in roller roller again, again roll and screening, until material is separated completely, the mixture feeding secondary four burnishing-in roller roller of glass fiber sheets and sheet metal is rolled, glass fabric is pulverized into and is less than 30 object powder, by curling for sheet metal agglomerating, adopt vibrating screening device to carry out sorting in the mixture after pulverizing, oversize is sheet metal, and screenings is glass fibre powder.
Wherein, described crushing system comprises one-level crushing system and two-stage crushing system, rcc system is rolled the electronic product after screening and is delivered to double-roll crusher and carries out one-level fragmentation by conveyer, then be delivered to hammer intermediate crusher by conveyer and carry out two-stage crushing, then be delivered to magnetic separation system by conveyer and select iron/nickel powder.
Wherein, described milling system comprises at least one hybrid ball mill.
Wherein, described separation system comprises at least one gravity separator, and gravity separation blower fan isolates metal and toner further by wind-force and electrostatic.By pulsed dust-removing device dedusting, metal dust is directly recycled.
Wherein, described leaching system comprises leaching copper system and the golden system of leaching, control current potential is carried out to the powder after sorting and divides copper, digestion agent is the sulfuric acid solution of 175 ~ 180g/L, solid-to-liquid ratio 1:(4 ~ 5), reaction temperature is 50 ~ 59 DEG C, and the reaction time is 12 ~ 20h, and by the addition controlling sodium chlorate, solution system current potential is maintained between 500 ~ 650mV, thus obtain rich copper solution and leaching copper ashes; Leaching copper ashes repeatedly can repeat leaching, and copper leaching liquid becomes monomer through condensing crystallizing.Gold process is soaked after leaching copper ashes is dried, leaching liquid is the sulfuric acid solution of 180 ~ 185g/L, solid-to-liquid ratio 1:(4 ~ 5), reaction temperature is 50 ~ 60 DEG C, reaction time is 110 ~ 120min, and make solution system current potential maintain between 1000-1200mV by the addition controlling sodium chlorate, obtain rich gold solution and the golden slag of leaching; Rich gold solution carries out the recovery of gold through the method such as ion-exchange, extraction, soak golden slag and repeatedly can repeat leaching.
Wherein, described one-level crushing system comprises at least two double-roll crushers, and feedstock transportation at least two double-roll crushers are carried out one-level pulverizing by ingredient conveyor simultaneously.
Wherein, described two-stage crushing system comprises at least two hammer intermediate crushers, is delivered at least two hammer intermediate crushers carries out secondary pulverizing simultaneously after raw material carries out one-level pulverizing by conveyer.
One or more technical schemes that the application provides, at least have following technique effect or advantage:
Have employed a series of rational recycling step: disassemble, roll, screen, fragmentation, magnetic separation, ball milling, sorting, leaching, high-efficiency and economic the useful materials in electronic product is reclaimed; The recovery system adopted comprises disassembly system, rcc system, screening system, crushing system, magnetic separation system, milling system, separation system, leaching system, and at disassembly system and rcc system, rcc system and screening system, screening system and crushing system, crushing system and magnetic separation system, magnetic separation system and milling system, milling system and separation system, between separation system and leaching system, be provided with automatic conveying system, make whole removal process effective, economic environmental protection, automatic safe.
Accompanying drawing explanation
Fig. 1 is the application's electronic product automatic recovery method process flow diagram.
Detailed description of the invention
Embodiment one
Present embodiments provide a kind of electronic product automatic recovery method, described recovery method comprises the following steps: disassemble, roll, screen, fragmentation, magnetic separation, ball milling, sorting, leaching, described recovery method completes in recovery system, described recovery system comprises disassembly system, rcc system, screening system, crushing system, magnetic separation system, milling system, separation system, leaching system and be arranged on disassembly system and rcc system, rcc system and screening system, screening system and crushing system, crushing system and magnetic separation system, magnetic separation system and milling system, milling system and separation system, induction system between separation system and leaching system, described induction system comprises some conveyers, at disassembly system and rcc system, rcc system and screening system, screening system and crushing system, crushing system and magnetic separation system, magnetic separation system and milling system, milling system and separation system, two conveyers are at least provided with respectively between separation system and leaching system.
In the present embodiment, described induction system comprises some conveyers, at disassembly system and rcc system, rcc system and screening system, screening system and crushing system, crushing system and magnetic separation system, magnetic separation system and milling system, milling system and separation system, is at least provided with two conveyers respectively between separation system and leaching system.
In the present embodiment, described disassembly system comprises some disassemble machines, and disassemble machine is for being separated electronic product to be dismantled from circuit board, and described disassemble machine comprises: base; Controller, described controller is fixed on and is arranged on base; Positioning component, described positioning component is arranged on described base, and is electrically connected with described controller, and described positioning component is used for being controlled by described controller, and described circuit board is limited in the first predeterminated position; And heating adsorption assembly, described heating adsorption assembly moves and is arranged on described base, and be electrically connected with described controller, described heating adsorption assembly is used for being controlled by described controller and moving to the second predeterminated position to heat described electronic product to be dismantled, and controlled by described controller and move to the 3rd predeterminated position to adsorb described electronic product to be dismantled, described electronic product to be dismantled is disassembled from described circuit board.Described electronic product disassemble machine comprises a base, a controller, a positioning component and a heating adsorption assembly.Described controller is fixed on described base, and is connected with described positioning component and described heating adsorption electrical component, for controlling described positioning component and described heating adsorption assembly.Described positioning component is arranged on described base, for being controlled described circuit board to be fixed on the first predeterminated position by described controller.Described heating adsorption assembly is removable to be arranged on described base, the second predeterminated position is moved to heat described electronic product to be dismantled for being controlled by described controller, and controlled by described controller and move to the 3rd predeterminated position to adsorb described electronic product to be dismantled, thus described electronic product to be dismantled is disassembled from described circuit board.Described first predeterminated position, described second predeterminated position and described 3rd predeterminated position input by an input block.Described second predeterminated position and described 3rd predeterminated position can be identical or not identical.Described controller is fixed in described base.Described controller is a programmable logic controller (PLC).Described positioning component comprises a transmission device, one first actuating device, a retention device and a first sensor.In the present embodiment, described transmission device comprises two driving members and two pairs of runners.Each driving member is a belt.Described two driving members are spaced.Described two driving members are used for the described circuit board of common carrying.In the present embodiment, described circuit board is contained in a carrier, and is arranged on described two driving members by described carrier.In the present embodiment, described carrier is formed with two through hole.Each driving member is sheathed in the pair of turning wheels of a correspondence.In the present embodiment, described two pairs of runners are rotationally connected with described base.In the present embodiment, described first actuating device transmits described carrier and described circuit board motion extremely described first predeterminated position for activating described driving member.Described first actuating device comprises one first rotating shaft and one first actuated piece.The runner in often pair of runner is fixed in described first rotating shaft.In the present embodiment, described first actuated piece is a servo motor.Described first actuated piece is fixed on described first rotating shaft.Described first actuated piece is used for being controlled to activate described first axis of rotation by described controller, makes described runner rotate and drive described driving member to transmit described carrier and described circuit board extremely described first predeterminated position.In the present embodiment, described retention device is arranged between described two driving members.Described retention device can stop the motion of described circuit board away from described base motions.In the present embodiment, described retention device also can, towards described base motions, make described circuit board by described retention device.In invention, described retention device is one first cylinder.Described retention device comprises one first cylinder body and a first piston bar.First cylinder body of described retention device is fixed between described two driving members, and the first piston bar of described retention device is between described two transmissions.Described retention device is used for making described retention device away from described base motions by the first piston bar activating described retention device away from described base motions.In the present embodiment, described first sensor is fixed between described two driving members, and relative to the first end of described retention device near described two driving members.Described first sensor is for responding to described carrier and described circuit board, and when sensing described carrier and described circuit board, send one first induced signal to described controller, make described controller control described first actuated piece and activate described first axis of rotation, and control described retention device away from described base motions.In the present embodiment, described heating adsorption assembly is arranged at described two driving members.In the present embodiment, described heating adsorption assembly is arranged at the left side of described two driving members.Described heating adsorption assembly comprises a vacuum slot, a hot-blast spray nozzle and one second actuating device.In the present embodiment, described vacuum slot be used for air-breathing adsorb described electronic product to be dismantled or blow make described electronic product to be dismantled depart from described vacuum slot.In the present embodiment, described hot-blast spray nozzle is for blowing out hot blast to be separated described electronic product to be dismantled.In the present embodiment, described second actuating device moves to described second predeterminated position for activating described hot-blast spray nozzle from one first initial position, and activates described vacuum slot and move to described 3rd predeterminated position from one second initial position.In the present embodiment, described first initial position and described second initial position input by described input block.Described second actuating device comprises one second actuated piece and one the 3rd actuated piece.Described second actuated piece is connected to described vacuum slot and described hot-blast spray nozzle.Described second actuated piece is for activating described vacuum slot and described hot-blast spray nozzle towards described base motions or away from described base motions.In the present embodiment, described second actuated piece is one second cylinder.Described second actuated piece comprises one second cylinder body and one second piston rod.Second cylinder body of described second actuated piece is connected to described 3rd actuated piece.Second piston rod of described second actuated piece is fixed on described vacuum slot and described hot-blast spray nozzle.Described second actuated piece is used for activating described vacuum slot and described hot-blast spray nozzle towards described base motions or away from described base motions by the second piston rod of described second actuated piece.Described 3rd actuated piece is arranged on described base, and is connected with described second actuated piece.Described 3rd actuated piece drives described vacuum slot and described hot-blast spray nozzle to be parallel to described drive member for activating described second actuated piece.In the present embodiment, described 3rd actuated piece is one the 3rd cylinder.Described 3rd actuated piece comprises one the 3rd cylinder body and one the 3rd piston rod.3rd cylinder body of described 3rd actuated piece is connected to described base.3rd piston of described 3rd actuated piece is fixed on the second cylinder body of described second actuated piece.Described 3rd actuated piece activates described second actuated piece by the 3rd piston rod of described 3rd actuated piece and drives described vacuum slot and described hot-blast spray nozzle to be parallel to described drive member.When described electronic product to be dismantled disassembled by needs, described in contain circuit board carrier be placed on described two driving members.Described first sensor responds to described circuit board, and sends described first signal to described controller, makes described controller control described first actuated piece and activates described first axis of rotation, and control described retention device away from described base motions.Described first rotating shaft drives described runner to rotate, and makes described driving member transmit described carrier and described circuit board motion to described first predeterminated position by described retention device retardation motion.Described second actuated piece and described 3rd actuated piece are controlled jointly to activate described hot-blast spray nozzle by described controller and move to described second predeterminated position, and when described hot-blast spray nozzle moves to described second predeterminated position, control described hot-blast spray nozzle blowout hot blast, and record the time of described hot-blast spray nozzle blowout hot blast.Described controller is when time is up one first scheduled time (as 120 seconds) for described record, control described second actuated piece and described 3rd actuated piece jointly to activate described vacuum slot and move to described 3rd predeterminated position, and when described vacuum slot moves to described 3rd predeterminated position, control described vacuum slot air-breathing to adsorb described electronic product to be dismantled.In the present embodiment, described controller is after described vacuum slot air-breathing one first scheduled time (as 9 seconds), control described second actuated piece and described 3rd actuated piece to activate described vacuum slot and move to one the 4th predeterminated position, and when described vacuum slot moves to described 4th predeterminated position, blow one second scheduled time (as 6 seconds), make described electronic product to be dismantled depart from described vacuum slot, described electronic product to be dismantled is reclaimed.In the present embodiment, described controller is also after described vacuum slot blows described second scheduled time (as 6 seconds), control described second actuated piece and described 3rd actuated piece to activate described hot-blast spray nozzle and reset to described first initial position, and activate described vacuum slot and reset to described second initial position.In the present embodiment, described positioning component also comprises one second sensor.Described second sensor is fixed between described two driving members, and relative to second end relative to described first end of described first sensor near described two driving members.Described second sensor for responding to described circuit board, and when sensing described circuit board, sends one second induced signal to described controller, makes described controller control described first actuated piece and stops activating described first axis of rotation.In the present embodiment, described positioning component also comprises a positioner.Described positioner is arranged between described two driving members, and between described first sensor and described retention device.In the present embodiment, described positioner comprises two actuating devices and two locating parts.Described two actuating devices are fixed between described two driving members, for activating the through hole that described two locating parts pierce on described carrier away from described base motions, locate described carrier.In the present embodiment, described actuating device also activates the through hole that described two locating parts pass on described carrier towards described base motions, make described carrier and the circuit board that is contained on described carrier by more described locating part.In the present embodiment, each actuating device is a four-cylinder.Each actuating device comprises one the 4th cylinder body and one the 4th piston rod.4th cylinder body of each actuating device is fixed between described two driving members.4th piston rod of each actuating device is fixed on a locating part.Described two actuating devices are used for activating described two locating parts away from described base motions by the 4th piston rod of described two actuating devices.In the present embodiment, described positioning component also comprises a detecting unit.In the present embodiment, described detecting unit is a sensor.Described detecting unit is fixed on described positioner, for responding to described circuit board, and when sensing described circuit board, send a detection signal to described controller, make described controller after continuous reception to described detection signal one predetermined amount of time, control more described actuating device and activate more described locating part away from described base motions, and control described retention device towards described base motions.In the present embodiment, more described actuating device also after first scheduled time (as 9 seconds), is controlled to activate more described locating part towards described base motions described in the described vacuum slot air-breathing of control by described controller.In the present embodiment, described heating adsorption assembly also comprises one the 3rd actuating device.Described 3rd actuating device and described second actuating device jointly activate described vacuum slot and move to described 3rd predeterminated position from described second initial position.In the present embodiment, described second actuated piece is connected to described vacuum slot by described 3rd actuating device.Described 3rd actuating device is for activating described vacuum slot towards described base motions or away from described base motions.In the present embodiment, described 3rd actuating device is a pen cylinder.Obviously, described 3rd actuating device also can be the cylinder of other types.Described 3rd actuating device comprises one the 5th cylinder body and one the 5th piston rod.5th piston rod of described 3rd actuating device is fixed on described second actuating device.5th cylinder body of described 3rd actuating device is fixed on described vacuum slot.Described 3rd actuating device activates described vacuum slot towards described base motions or away from described base motions by the 5th piston rod of described 3rd actuating device.In the present embodiment, described heating adsorption assembly also comprises an adjusting device.In the present embodiment, described adjusting device comprises a pair of guide rails, one first regulating part, one second pair of guide rail and one second regulating part.The bottom of two guide rails of described pair of guide rails is all formed with two first accepting grooves, for accommodating described second pair of guide rail, makes described second pair of slide be connected to described pair of guide rails.Described first regulating part comprises one first screw rod and one first slide block.Described first screw rod is connected to described pair of guide rails rotationally, and between two guide rails being arranged at described pair of guide rails.Described first screw rod rotates for responding the operation of user.Described first slide block is fixedly connected on described 3rd actuated piece, and slip is bolted in described first screw rod.Described first slide block is used for being driven by described first screw rod and being parallel to described drive member, makes described hot-blast spray nozzle and described vacuum slot be parallel to described drive member.Described second pair of guide rail is fixed on described base.In the present embodiment, described second pair of guide rail is basically perpendicular to described pair of guide rails.Two guide rails in described second pair of guide rail are spaced.In the present embodiment, described second regulating part comprises one second screw rod and one second slide block.Described second screw rod is connected to described base rotationally, and between two guide rails being arranged at described second pair of guide rail.Described second screw rod rotates for responding the operation of user.Described second slide block is fixedly connected on described pair of guide rails, and slip is bolted in described second screw rod.Described second slide block is used for being driven by described second screw rod and towards described drive member or away from described drive member, making described hot-blast spray nozzle and described vacuum slot towards described drive member or away from described drive member.In the present embodiment, described heating adsorption assembly also comprises a pedestal.Described pedestal is fixedly connected on described second slide block and described 3rd actuated piece.Described pedestal comprises a first surface and relative to the second surface of described first surface.In the present embodiment, the first surface of described pedestal is the lower surface of described pedestal, and the second surface of described pedestal is the upper surface of described pedestal.The first surface of described pedestal is formed with at least one second accepting groove.In the present embodiment, the quantity of described second accepting groove is two.More described second accepting groove, for accommodating two guide rails of described second pair of guide rail, makes described pedestal be slidably connected to described second pair of guide rail.Described second slide block is fixedly connected on the first surface of described pedestal, and described 3rd actuated piece is fixedly connected on the second surface of described pedestal.
In the present embodiment, described rcc system comprises some four burnishing-in roller rollers, send into four burnishing-in roller rollers roll disassembling electronic product, the resin RESEARCH OF PYROCARBON of glass fibre interlayer and glass layer and metal interlevel is come off, and glass fabric and metal level dissociate in the form of sheets completely.Rcc system comprises one-level four burnishing-in roller roller and secondary four burnishing-in roller roller.The useless circuit board having removed electronic product is carried out pyrolysis at 450-650 DEG C, makes the resin at high temperature pyrolysis carbonization between adhesive glass fiber cloth and metal level form carbon dust.
In the present embodiment, described screening system is for screening mixture: utilize vibrating screening device to sub-elect carbon dust in the mixture of glass fiber sheets, sheet metal and carbon dust; For the material that one-level four burnishing-in roller roller screening rear section is not separated completely, return one-level four burnishing-in roller roller again, again roll and screening, until material is separated completely, the mixture feeding secondary four burnishing-in roller roller of glass fiber sheets and sheet metal is rolled, glass fabric is pulverized into and is less than 30 object powder, by curling for sheet metal agglomerating, adopt vibrating screening device to carry out sorting in the mixture after pulverizing, oversize is sheet metal, and screenings is glass fibre powder.
In the present embodiment, described crushing system comprises one-level crushing system and two-stage crushing system, rcc system is rolled the electronic product after screening and is delivered to double-roll crusher and carries out one-level fragmentation by conveyer, then be delivered to hammer intermediate crusher by conveyer and carry out two-stage crushing, then be delivered to magnetic separation system by conveyer and select iron/nickel powder.
In the present embodiment, described milling system comprises at least one hybrid ball mill.
In the present embodiment, described separation system comprises at least one gravity separator, and gravity separation blower fan isolates metal and toner further by wind-force and electrostatic.By pulsed dust-removing device dedusting, metal dust is directly recycled.
In the present embodiment, described leaching system comprises leaching copper system and the golden system of leaching, control current potential is carried out to the powder after sorting and divides copper, digestion agent is the sulfuric acid solution of 175 ~ 180g/L, solid-to-liquid ratio 1:(4 ~ 5), reaction temperature is 50 ~ 59 DEG C, and the reaction time is 12 ~ 20h, and by the addition controlling sodium chlorate, solution system current potential is maintained between 500 ~ 650mV, thus obtain rich copper solution and leaching copper ashes; Leaching copper ashes repeatedly can repeat leaching, and copper leaching liquid becomes monomer through condensing crystallizing.Gold process is soaked after leaching copper ashes is dried, leaching liquid is the sulfuric acid solution of 180 ~ 185g/L, solid-to-liquid ratio 1:(4 ~ 5), reaction temperature is 50 ~ 60 DEG C, reaction time is 110 ~ 120min, and make solution system current potential maintain between 1000-1200mV by the addition controlling sodium chlorate, obtain rich gold solution and the golden slag of leaching; Rich gold solution carries out the recovery of gold through the method such as ion-exchange, extraction, soak golden slag and repeatedly can repeat leaching.
In the present embodiment, described one-level crushing system comprises at least two double-roll crushers, and feedstock transportation at least two double-roll crushers are carried out one-level pulverizing by ingredient conveyor simultaneously.
In the present embodiment, described two-stage crushing system comprises at least two hammer intermediate crushers, is delivered at least two hammer intermediate crushers carries out secondary pulverizing simultaneously after raw material carries out one-level pulverizing by conveyer.
Embodiment two
Present embodiments provide a kind of electronic product automatic recovery method, described recovery method comprises the following steps: disassemble, roll, screen, fragmentation, magnetic separation, ball milling, sorting, leaching, described recovery method completes in recovery system, described recovery system comprises disassembly system, rcc system, screening system, crushing system, magnetic separation system, milling system, separation system, leaching system and be arranged on disassembly system and rcc system, rcc system and screening system, screening system and crushing system, crushing system and magnetic separation system, magnetic separation system and milling system, milling system and separation system, induction system between separation system and leaching system, described induction system comprises some conveyers, at disassembly system and rcc system, rcc system and screening system, screening system and crushing system, crushing system and magnetic separation system, magnetic separation system and milling system, milling system and separation system, two conveyers are at least provided with respectively between separation system and leaching system.
In the present embodiment, described induction system comprises some conveyers, at disassembly system and rcc system, rcc system and screening system, screening system and crushing system, crushing system and magnetic separation system, magnetic separation system and milling system, milling system and separation system, is at least provided with two conveyers respectively between separation system and leaching system.
In the present embodiment, described disassembly system comprises some seperators, described seperator comprises frame, hopper, hot blast chamber furnaced, hot air duct, air-heater, the top of described frame is provided with hopper, the below of described hopper is provided with hot blast chamber furnaced, described hot blast chamber furnaced side is provided with air-heater, and described air-heater is connected with hot blast chamber furnaced by hot air duct.Hot blast chamber furnaced comprises outer stove, interior stove, hot blast disperser, electric rotating machine, temperature sensor, and described outer stove is fixedly mounted in frame, and the inside of described outer stove is provided with coaxial interior stove, and described outer stove and interior stove are respectively equipped with outer fire door and interior fire door.One end of interior stove is connected with electric rotating machine, and the other end of interior stove is connected with air-heater by hot air duct.The inside of interior stove is provided with hot blast disperser, and described hot blast disperser evenly has hot blast dispersion hole, and described hot blast disperser is connected with hot air duct.The inside of interior stove is also provided with temperature sensor.Air-heater can adopt electric-heating heat blower fan or combustion type air-heater, adopts Hot-blast Heating to carry out separate electronic components and parts, compared with other modes, heat more even, being uniformly distributed and precisely controlling of furnace temperature in seperator can be realized, improve heat utilization rate, reduce molten tin cost.The present embodiment adopts concentric double furnace structure, not only can prevent interior stove heat loss, improves efficiency of utilization, is conducive to energy-conservation, and outside stove can connect gas processing device, prevents waste gas from leaking, is conducive to environmental protection.The top of hot blast chamber furnaced is provided with automatic furnace gate opening gear, described automatic furnace gate opening gear comprises the mechanical, electrical magnet of lift nut, guide rail, described electromagnet has two, run through respectively and be fixed on outer fire door, two electromagnet tops are connected to each other by cross bar and are integrated, described lift nut machine comprises lifting motor, screw mandrel, feed screw nut, described feed screw nut is fixed on the middle part of cross bar, the center of feed screw nut is provided with the screw mandrel of rotatable engagement, one end of described screw mandrel is connected with lifting motor, and the both sides of described outer fire door are provided with guide rail.Useless electronic product quantitative storage is existed in hopper, fire door in being captured by electromagnet, and after upwards promoting open interior fire door to certain altitude by lift nut machine, guide rail along outer fire door both sides moves horizontally certain distance (move horizontally and can adopt pneumatic or hydraulic drive, also can adopt the mode of driven by motor).After door opened in confirming, then the discharge door of hopper is opened, old circuit board is made to enter interior stove, by lift nut machine after charging, interior fire door is closed in electromagnet teamwork, air-heater (electric heating and combustion gas heat) is opened after completing automated packing, by the hot blast disperser in interior stove, hot blast is quick, evenly to deliver in stove everywhere, open electric rotating machine, hot blast temperature and hot blast rate is regulated by in-furnace temperature sensor feedback information in rotation process, thus optimum Economical Temperature in-furnace temperature being constant at detin carries out electronic devices and components separation.
In the present embodiment, described rcc system comprises some four burnishing-in roller rollers, send into four burnishing-in roller rollers roll disassembling electronic product, the resin RESEARCH OF PYROCARBON of glass fibre interlayer and glass layer and metal interlevel is come off, and glass fabric and metal level dissociate in the form of sheets completely.Rcc system comprises one-level four burnishing-in roller roller and secondary four burnishing-in roller roller.The useless circuit board having removed electronic product is carried out pyrolysis at 450-650 DEG C, makes the resin at high temperature pyrolysis carbonization between adhesive glass fiber cloth and metal level form carbon dust.
In the present embodiment, described screening system is for screening mixture: utilize vibrating screening device to sub-elect carbon dust in the mixture of glass fiber sheets, sheet metal and carbon dust; For the material that one-level four burnishing-in roller roller screening rear section is not separated completely, return one-level four burnishing-in roller roller again, again roll and screening, until material is separated completely, the mixture feeding secondary four burnishing-in roller roller of glass fiber sheets and sheet metal is rolled, glass fabric is pulverized into and is less than 30 object powder, by curling for sheet metal agglomerating, adopt vibrating screening device to carry out sorting in the mixture after pulverizing, oversize is sheet metal, and screenings is glass fibre powder.
In the present embodiment, described crushing system comprises one-level crushing system and two-stage crushing system, rcc system is rolled the electronic product after screening and is delivered to double-roll crusher and carries out one-level fragmentation by conveyer, then be delivered to hammer intermediate crusher by conveyer and carry out two-stage crushing, then be delivered to magnetic separation system by conveyer and select iron/nickel powder.
In the present embodiment, described milling system comprises at least one hybrid ball mill.
In the present embodiment, described separation system comprises at least one gravity separator, and gravity separation blower fan isolates metal and toner further by wind-force and electrostatic.By pulsed dust-removing device dedusting, metal dust is directly recycled.
In the present embodiment, described leaching system comprises leaching copper system and the golden system of leaching, control current potential is carried out to the powder after sorting and divides copper, digestion agent is the sulfuric acid solution of 175 ~ 180g/L, solid-to-liquid ratio 1:(4 ~ 5), reaction temperature is 50 ~ 59 DEG C, and the reaction time is 12 ~ 20h, and by the addition controlling sodium chlorate, solution system current potential is maintained between 500 ~ 650mV, thus obtain rich copper solution and leaching copper ashes; Leaching copper ashes repeatedly can repeat leaching, and copper leaching liquid becomes monomer through condensing crystallizing.Gold process is soaked after leaching copper ashes is dried, leaching liquid is the sulfuric acid solution of 180 ~ 185g/L, solid-to-liquid ratio 1:(4 ~ 5), reaction temperature is 50 ~ 60 DEG C, reaction time is 110 ~ 120min, and make solution system current potential maintain between 1000-1200mV by the addition controlling sodium chlorate, obtain rich gold solution and the golden slag of leaching; Rich gold solution carries out the recovery of gold through the method such as ion-exchange, extraction, soak golden slag and repeatedly can repeat leaching.
In the present embodiment, described one-level crushing system comprises at least two double-roll crushers, and feedstock transportation at least two double-roll crushers are carried out one-level pulverizing by ingredient conveyor simultaneously.
In the present embodiment, described two-stage crushing system comprises at least two hammer intermediate crushers, is delivered at least two hammer intermediate crushers carries out secondary pulverizing simultaneously after raw material carries out one-level pulverizing by conveyer.
Although describe the preferred embodiments of the present invention, those skilled in the art once obtain the basic creative concept of cicada, then can make other change and amendment to these embodiments.So claims are intended to be interpreted as comprising preferred embodiment and falling into all changes and the amendment of the scope of the invention.Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (10)
1. an electronic product automatic recovery method, described recovery method comprises the following steps: disassemble, roll, screen, fragmentation, magnetic separation, ball milling, sorting, leaching, described recovery method completes in recovery system, described recovery system comprises disassembly system, rcc system, screening system, crushing system, magnetic separation system, milling system, separation system, leaching system and be arranged on disassembly system and rcc system, rcc system and screening system, screening system and crushing system, crushing system and magnetic separation system, magnetic separation system and milling system, milling system and separation system, induction system between separation system and leaching system, described induction system comprises some conveyers, at disassembly system and rcc system, rcc system and screening system, screening system and crushing system, crushing system and magnetic separation system, magnetic separation system and milling system, milling system and separation system, two conveyers are at least provided with respectively between separation system and leaching system.
2. electronic product automatic recovery method according to claim 2, described rcc system comprises some four burnishing-in roller rollers, send into four burnishing-in roller rollers roll disassembling electronic product, the resin RESEARCH OF PYROCARBON of glass fibre interlayer and glass layer and metal interlevel is come off, glass fabric and metal level dissociate in the form of sheets completely, and described rcc system comprises one-level four burnishing-in roller roller and secondary four burnishing-in roller roller.
3. electronic product automatic recovery method according to claim 2, the mixture of glass fiber sheets, sheet metal and carbon dust, for screening mixture, utilizes vibrating screening device to sub-elect carbon dust by described screening system; For the material that one-level four burnishing-in roller roller screening rear section is not separated completely, return one-level four burnishing-in roller roller again, again roll and screening, until material is separated completely, the mixture feeding secondary four burnishing-in roller roller of glass fiber sheets and sheet metal is rolled, glass fabric is pulverized into and is less than 30 object powder, by curling for sheet metal agglomerating, adopt vibrating screening device to carry out sorting in the mixture after pulverizing, oversize is sheet metal, and screenings is glass fibre powder.
4. electronic product automatic recovery method according to claim 3, described crushing system comprises one-level crushing system and two-stage crushing system, electronic product after rcc system rolls by conveyer is delivered to double-roll crusher and carries out one-level fragmentation, then be delivered to hammer intermediate crusher by conveyer and carry out two-stage crushing, then be delivered to magnetic separation system by conveyer and select iron/nickel powder.
5. electronic product automatic recovery method according to claim 4, described milling system comprises at least one hybrid ball mill.
6. electronic product automatic recovery method according to claim 5, described separation system comprises at least one gravity separator, and gravity separation blower fan goes out metal and toner by wind-force and electrostatic separation.By pulsed dust-removing device dedusting, metal dust is directly recycled, isolated toner.
7. electronic product automatic recovery method according to claim 6, described leaching system comprises leaching copper system and the golden system of leaching, control current potential is carried out to the powder after sorting and divides copper, digestion agent is the sulfuric acid solution of 175 ~ 180g/L, solid-to-liquid ratio 1:(4 ~ 5), reaction temperature is 50 ~ 59 DEG C, and the reaction time is 12 ~ 20h, and by the addition controlling sodium chlorate, solution system current potential is maintained between 500 ~ 650mV, thus obtain rich copper solution and leaching copper ashes; Leaching copper ashes repeatedly can repeat leaching, and copper leaching liquid becomes monomer through condensing crystallizing.Gold process is soaked after leaching copper ashes is dried, leaching liquid is the sulfuric acid solution of 180 ~ 185g/L, solid-to-liquid ratio 1:(4 ~ 5), reaction temperature is 50 ~ 60 DEG C, reaction time is 110 ~ 120min, and make solution system current potential maintain between 1000-1200mV by the addition controlling sodium chlorate, obtain rich gold solution and the golden slag of leaching; Rich gold solution carries out the recovery of gold through the method such as ion-exchange, extraction, soak golden slag and repeatedly can repeat leaching.
8. electronic product automatic recovery method according to claim 7, described one-level crushing system comprises at least two double-roll crushers, and feedstock transportation at least two double-roll crushers are carried out one-level pulverizing by ingredient conveyor simultaneously; Described two-stage crushing system comprises at least two hammer intermediate crushers, is delivered at least two hammer intermediate crushers carries out secondary pulverizing simultaneously after raw material carries out one-level pulverizing by conveyer.
9. electronic product automatic recovery method according to claim 8, described disassembly system comprises some disassemble machines, and disassemble machine is for being separated electronic product to be dismantled from circuit board, and described disassemble machine comprises: base; Controller, described controller is fixed on and is arranged on base; Positioning component, described positioning component is arranged on described base, and is electrically connected with described controller, and described positioning component is used for being controlled by described controller, and described circuit board is limited in the first predeterminated position; And heating adsorption assembly, described heating adsorption assembly moves and is arranged on described base, and be electrically connected with described controller, described heating adsorption assembly is used for being controlled by described controller and moving to the second predeterminated position to heat described electronic product to be dismantled, and controlled by described controller and move to the 3rd predeterminated position to adsorb described electronic product to be dismantled, described electronic product to be dismantled is disassembled from described circuit board.
10. electronic product automatic recovery method according to claim 8, described disassembly system comprises some seperators, described seperator comprises frame, hopper, hot blast chamber furnaced, hot air duct, air-heater, the top of described frame is provided with hopper, the below of described hopper is provided with hot blast chamber furnaced, described hot blast chamber furnaced side is provided with air-heater, and described air-heater is connected with hot blast chamber furnaced by hot air duct; Hot blast chamber furnaced comprises outer stove, interior stove, hot blast disperser, electric rotating machine, temperature sensor, and described outer stove is fixedly mounted in frame, and the inside of described outer stove is provided with coaxial interior stove, and described outer stove and interior stove are respectively equipped with outer fire door and interior fire door.One end of interior stove is connected with electric rotating machine, and the other end of interior stove is connected with air-heater by hot air duct.The inside of interior stove is provided with hot blast disperser, and described hot blast disperser evenly has hot blast dispersion hole, and described hot blast disperser is connected with hot air duct, the inside of interior stove is also provided with temperature sensor, air-heater adopts electric-heating heat blower fan or combustion type air-heater, the top of hot blast chamber furnaced is provided with automatic furnace gate opening gear, described automatic furnace gate opening gear comprises lift nut machine, electromagnet, guide rail, described electromagnet has two, run through respectively and be fixed on outer fire door, two electromagnet tops are connected to each other by cross bar and are integrated, described lift nut machine comprises lifting motor, screw mandrel, feed screw nut, described feed screw nut is fixed on the middle part of cross bar, the center of feed screw nut is provided with the screw mandrel of rotatable engagement, one end of described screw mandrel is connected with lifting motor, the both sides of described outer fire door are provided with guide rail.
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