CN107716514B - De-tin equipment for circuit board components - Google Patents
De-tin equipment for circuit board components Download PDFInfo
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- CN107716514B CN107716514B CN201711030260.3A CN201711030260A CN107716514B CN 107716514 B CN107716514 B CN 107716514B CN 201711030260 A CN201711030260 A CN 201711030260A CN 107716514 B CN107716514 B CN 107716514B
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- Prior art keywords
- circuit board
- tin
- oil
- conveyor
- deoiling
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- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims abstract description 83
- 238000010438 heat treatment Methods 0.000 claims abstract description 56
- 238000004140 cleaning Methods 0.000 claims abstract description 42
- 239000002699 waste material Substances 0.000 claims abstract description 36
- 239000000428 dust Substances 0.000 claims abstract description 25
- 238000000926 separation method Methods 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims abstract description 13
- 230000003287 optical effect Effects 0.000 claims abstract description 12
- 230000008569 process Effects 0.000 claims abstract description 11
- 238000000861 blow drying Methods 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 33
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 29
- 238000007789 sealing Methods 0.000 claims description 25
- 239000000779 smoke Substances 0.000 claims description 22
- 239000007788 liquid Substances 0.000 claims description 15
- 238000007599 discharging Methods 0.000 claims description 14
- 229910052757 nitrogen Inorganic materials 0.000 claims description 14
- 238000001556 precipitation Methods 0.000 claims description 10
- 238000004506 ultrasonic cleaning Methods 0.000 claims description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 8
- 229910052799 carbon Inorganic materials 0.000 claims description 8
- 238000007790 scraping Methods 0.000 claims description 8
- 238000004062 sedimentation Methods 0.000 claims description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 6
- 239000001301 oxygen Substances 0.000 claims description 6
- 229910052760 oxygen Inorganic materials 0.000 claims description 6
- 238000007664 blowing Methods 0.000 claims description 5
- 238000004064 recycling Methods 0.000 claims description 4
- 238000005238 degreasing Methods 0.000 claims description 2
- 229910000679 solder Inorganic materials 0.000 claims 4
- 239000000463 material Substances 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 2
- 230000006872 improvement Effects 0.000 description 19
- 229910001220 stainless steel Inorganic materials 0.000 description 7
- 239000010935 stainless steel Substances 0.000 description 7
- 238000011084 recovery Methods 0.000 description 5
- 229910000510 noble metal Inorganic materials 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 229910001873 dinitrogen Inorganic materials 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000010793 electronic waste Substances 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Classifications
-
- 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
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/02—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising gravity
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/002—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by condensation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/02—Cleaning by the force of jets or sprays
- B08B3/022—Cleaning travelling work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/10—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
- B08B3/12—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration by sonic or ultrasonic vibrations
- B08B3/123—Cleaning travelling work, e.g. webs, articles on a conveyor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/10—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
- B08B3/14—Removing waste, e.g. labels, from cleaning liquid; Regenerating cleaning liquids
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/018—Unsoldering; Removal of melted solder or other residues
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
- B23K3/08—Auxiliary devices therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/004—Nozzle assemblies; Air knives; Air distributors; Blow boxes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/36—Electric or electronic devices
- B23K2101/42—Printed circuits
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/82—Recycling of waste of electrical or electronic equipment [WEEE]
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Cleaning By Liquid Or Steam (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention provides a circuit board component tin removing device, which comprises a cleaning device, a high-temperature oil heating circulation device, a circuit board heating device, a circuit board tin removing device, a conveyor device and a sorting device; the waste circuit board is conveyed into a sealed tin stripping box of a circuit board tin stripping device through a conveyor device after dust removal, cleaning and blow drying are completed in the cleaning device, the circuit board heating device is arranged in a conveying path of the conveyor device and used for preheating the waste circuit board, the high-temperature oil heating circulation device is used for providing high-temperature oil for the circuit board heating device and the circuit board tin stripping device, the waste circuit board after tin stripping of the tin stripping device is conveyed to a sorting device to complete separation of an optical board and components of the waste circuit board, and the separated optical board and components enter deoiling equipment for deoiling treatment; the scheme provides materials meeting the requirements for the subsequent process treatment, and achieves the effects of reasonable utilization and fine separation.
Description
Technical Field
The invention relates to circuit board recovery equipment, in particular to tin stripping equipment for circuit board components.
Background
At present, the recycling of electronic wastes belongs to an emerging industry in the world, and waste electrical products in China enter the peak period of elimination. Various electrical appliances are disassembled to form a large number of circuit boards, and a large number of noble metals are also arranged in the circuit boards, so that certain pollution to the environment is caused if the noble metals are improperly treated, and certain amount of noble metals are wasted.
In order to effectively and reasonably decompose various components on the waste circuit board, firstly, dust on the waste circuit board needs to be physically removed, then the components fixed on the circuit board are split after the cleaned circuit board is detinned, and the components are treated in a closed mode in the whole splitting process, so that the safety and operability of the treatment process are ensured. Since environmental protection has become very important to today's society, it is necessary to have a set of equipment that is both environmentally friendly and that allows the efficient disposal of waste circuit boards.
Disclosure of Invention
The invention aims to solve the technical problems that: aiming at the problems existing in the prior art, the tin stripping equipment for the circuit board components is provided, and materials meeting the requirements are provided for the subsequent process treatment, so that the effects of reasonable utilization and fine separation are achieved.
The technical problems to be solved by the invention are realized by adopting the following technical scheme:
the device comprises a cleaning device, a high-temperature oil heating circulation device, a circuit board heating device, a circuit board tin removing device, a conveyor device and a sorting device; the waste circuit board is conveyed into a sealed tin stripping box of the circuit board tin stripping device through a conveyor device after dust removal, cleaning and blow-drying are completed in the cleaning device, the circuit board heating device is installed in a conveying path of the conveyor device and used for preheating the waste circuit board, the high-temperature oil heating circulation device provides high-temperature oil for the circuit board heating device and the circuit board tin stripping device, the waste circuit board after tin stripping of the tin stripping device is conveyed to a sorting device to complete separation of an optical board and components of the waste circuit board, and the separated optical board and components enter deoiling equipment for deoiling treatment.
As the further improvement of this scheme, this equipment still includes the smoke and dust removal equipment that is used for sealed tin stripping incasement smoke and dust to handle, smoke and dust removal equipment includes natural condensing box, pressurize sealing device, active carbon pipe and smoke and dust absorption mouth, the smoke and dust absorption mouth is arranged in sealed tin stripping incasement, utilizes the active carbon pipe to import smoke and dust natural condensing box, pressurize sealing device is the annular basin that is provided with sealed lid, and basin one end is installed on natural condensing box, and forced condenser pipe is connected to its other end.
As a further improvement of this scheme, belt cleaning device includes washing tank and sedimentation tank, adopt the filter screen to cut off between washing tank and the sedimentation tank, the washing tank divide into ultrasonic cleaning district, transition draining district, clear water cleaning district, high-pressure blowing district and the district of unloading according to the flow in proper order, and waste circuit board accomplishes dust removal, washs, weathers the back and sends to conveyor device's feed inlet in proper order.
As a further improvement of the scheme, the circuit board heating device comprises an oil groove, wherein the oil groove is respectively provided with an oil inlet and an oil outlet, the oil outlet is connected with an oil return channel, and the direction of a path formed from the oil inlet to the oil outlet is opposite to the conveying direction of the waste circuit board; the portion of the conveyor device located within the sump is a chain-mesh belt conveyor.
As a further improvement of the scheme, the circuit board tin stripping device comprises a row of rollers arranged in a sealed tin stripping box, the rollers are driven by a roller motor, scraping blades are arranged on the rollers, gaps are reserved between adjacent rollers to enable the waste circuit boards to be lifted up and down to be scraped with the scraping blades in the conveying process, the waste circuit boards after tin discharge are output through an inclined upward product discharging conveyor, and the output waste circuit boards are conveyed to the sorting device through an inclined upward discharging sealed plate chain conveyor.
As a further improvement of the scheme, the deoiling equipment comprises a centrifugal deoiling barrel and a light plate deoiling equipment, wherein the centrifugal deoiling barrel is used for deoiling components, the light plate deoiling equipment is used for deoiling light plates and comprises a first chain mesh belt type conveyor and a second chain mesh belt type conveyor which are arranged in a high-low continuous mode, an arched bridge for overturning the light plates is arranged at one tail end of the first chain mesh belt type conveyor, and light plate deoiling brushes are respectively arranged on the first chain mesh belt type conveyor and the second chain mesh belt type conveyor.
As a further improvement of the scheme, the sorting device comprises a distributing hopper, an inclined sorting sieve is arranged in the distributing hopper, a centrifugal oil removal barrel is arranged below the distributing hopper, and the inclined top of the vibrating sieve is abutted against a first chain mesh belt conveyor.
As a further improvement of the scheme, the high-temperature oil heating and circulating device comprises a heating tank, an oil outlet pump and an oil return pump, wherein the heating tank is connected with the oil outlet pump, the oil outlet pump outputs high-temperature oil, and the oil return pump is used for recycling cooled high-temperature oil.
As a further improvement of the scheme, the device also comprises a tin outlet lifter, a tin precipitation tank and a conveying pipe, wherein the conveying pipe stretches into the sealed tin stripping tank to introduce tin into the tin precipitation tank, and the tin outlet lifter is used for extracting the tin in the tin precipitation tank.
As a further improvement of the scheme, the device further comprises a nitrogen making machine and a fan, nitrogen obtained after nitrogen and oxygen in compressed air are separated in the nitrogen making machine is filled into the whole sealed tin stripping box to prevent oil and oxygen from burning or exploding in a high-temperature state, the fan provides a hot air internal circulation system for the whole device, and a chain mesh belt conveyor of the conveyor device, which is close to a feeding port, is provided with sealing liquid.
Compared with the prior art, the invention has the beneficial effects that: the physical separation method is adopted, so that components on the circuit board are effectively separated, and subsequent processing is facilitated. In the process of tin removal, as the working procedure of heating high-temperature oil is used, in order to protect the safety of equipment and smoke dust generated in the heating process, the treatment process is operated in a sealing mode, the safety hidden part is eliminated, the environment is protected, and the production safety is prevented.
Drawings
Fig. 1 is a front view of the present invention.
Fig. 2 is a top view of the present invention.
FIG. 3 is a schematic view of a high temperature oil heating cycle apparatus of the present invention.
Fig. 4 is a schematic structural view of the smoke abatement apparatus of the present invention.
Fig. 5 is a schematic structural view of the circuit board tin stripping device of the invention.
Fig. 6 is a schematic view of the structure of the conveyor apparatus of the present invention.
Fig. 7 is a schematic structural view of the oil removing apparatus for a light plate of the present invention.
Fig. 8 is a schematic view of the structure of the cleaning device of the present invention.
The marks in the figure: 1-cleaning device, 101-ultrasonic cleaning area, 102-clear water cleaning area, 103-high-pressure blowing area, 104-discharging area, 105-transitional draining area, 106-sedimentation tank, 2-high-temperature oil heating circulation device, 201-heating tank, 202-oil discharging pump, 203-oil return pump, 204-tin lifting machine, 205-tin sedimentation tank, 206-conveying pipe, 3-circuit board heating device, 301-oil groove, 302-oil inlet, 303-oil outlet, 4-circuit board tin removing device, 401-roller, 402-scraping blade, 403-roller motor, 404-sealed tin removing box, 5-smoke removing device, 501-active carbon pipe, 502-natural condensing box, 503-smoke dust absorbing port, 504-pressure maintaining sealing device, 505-forced condensing pipe, 6-conveyor device, 600-conveyor belt, 601-feeding port, 602-chain track, 603-driving sprocket, 604-driving motor, 605-discharging sealing plate chain conveyor, 606-product discharging conveyor, 8-sorting device, 9-light plate deoiling equipment, 901-chain mesh belt conveyor one, 902-light plate deoiling brush, 903-arch bridge, 905-chain mesh belt conveyor two, 20-fan, 21-hot air internal circulation system, 22-sealing liquid, 23-vibrating screen, 24-vibrating screen conveyor, 25-centrifugal deoiling barrel, 26-nitrogen machine.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
As shown in fig. 1-8:
the device comprises a cleaning device 1, a high-temperature oil heating and circulating device 2, a circuit board heating device 3, a circuit board tin removing device 4, a conveyor device 6 and a sorting device 8; the waste circuit board is conveyed into a sealing tin stripping box 404 of a circuit board tin stripping device 4 through a conveyor device 6 after dust removal, cleaning and blow drying are completed in the cleaning device 1, the circuit board heating device 3 is installed in a conveying path of the conveyor device 6 and used for preheating the waste circuit board, the high-temperature oil heating circulation device 2 provides high-temperature oil for the circuit board heating device 3 and the circuit board tin stripping device 4, the waste circuit board after the tin stripping device 4 is conveyed to a sorting device 8 to complete separation of an optical board and components of the waste circuit board, and the separated optical board and components enter deoiling equipment for deoiling treatment.
As a further improvement of the scheme, the device further comprises a smoke removing device 5 for treating smoke dust in the sealed tin-removing box 404, the smoke removing device 5 comprises a natural condensing box body 502, a pressure maintaining sealing device 504, an active carbon tube 501 and a smoke dust absorbing opening 503, the smoke dust absorbing opening 503 is arranged in the sealed tin-removing box 404, the active carbon tube 501 is used for inputting the smoke dust into the natural condensing box body 502, the pressure maintaining sealing device 504 is an annular water tank provided with a sealing cover, one end of the water tank is arranged on the natural condensing box body 502, and the other end of the water tank is connected with a forced condensing tube 505.
Specifically, the natural condensing box 502 cancels heat preservation cotton at the top cover position behind the heating tank, and realizes internal and external heat exchange. Under the sealed condition, most of the oil smoke can be slowly condensed; the internal pressure is increased due to a small amount of unsealed sealing, and the top is broken to establish an oil seal; into the forced condensing duct 505. The external cold water impacts the inner pipe wall of the natural condensation box 502 to realize the condensation of oil; the residual gas is directly discharged into the air after being treated by active carbon or water; principle of: an annular water tank, a sealing cover is covered on the annular water tank, and water is filled in the water tank; when the pressure is within a certain range, the sealing is realized, and when the pressure reaches a certain degree, the sealing is in a smooth state when the pressure is larger than the water pressure.
As a further improvement of the scheme, the cleaning device 1 comprises a cleaning tank, a filter screen is adopted between the cleaning tank and a sedimentation tank 106 to separate, and the cleaning tank is sequentially divided into an ultrasonic cleaning area 101, a transitional draining area 105, a clear water cleaning area 102, a high-pressure blowing area 103 and a discharging area 104 according to the flow, and the waste circuit board is sequentially subjected to dust removal, cleaning and blow drying and then is sent to a feeding port 601 of the conveyor device 6.
Specifically, the cleaning device comprises an annular cleaning tank, a cleaning bracket, an ultrasonic device arranged in the ultrasonic cleaning area 101, a high-pressure water device in the clean water cleaning area 102 and a high-pressure air device in the high-pressure blowing area 103.
Cleaning tank: a stainless steel frame, and a water circulation and water treatment device are added;
stainless steel frame: welding a frame by adopting a rectangular tube, and sealing a stainless steel plate on the inner surface; the strength is good, corrosion resistance and rust resistance are realized, and the cost can be saved;
a water treatment device: a precipitation filtration treatment mode;
the middle partition of the general sedimentation tank 106 is a watertight wall, and the device adopts a filter screen as the partition, so that the permeability of water can be increased, and the phenomenon of blocking the filter screen can not be generated when the water is filtered vertically like a general filter screen;
water circulation: a water pump is utilized to set up an overflow port from a specified liquid level surface, the overflow port flows back to a water treatment device below, and the treated water is pumped into a cleaning water tank by the water pump; the cleaning bracket consists of a chain conveyor and a stainless steel basket body, wherein the stainless steel basket body is formed by welding fine stainless steel wires and has the main function of containing a circuit board; the flow of the circuit board is realized;
the chain conveyor adopts a large ball chain, and the chain rolls on a specified track, so that the flexible and convenient up-down and left-right turning is realized; the main function is to drive the stainless steel frame and the circuit board in the frame to reach each functional area;
the ultrasonic device arranged in the ultrasonic cleaning area 101 consists of four ultrasonic generating devices and an ultrasonic cleaning head, and cleaning dust and other sundries on the circuit board is realized by utilizing ultrasonic cleaning;
the high-pressure water device consists of a high-pressure pump, a nozzle box, a pipeline and a water treatment device;
nozzle box: adopting a 45-degree downward inclined opposite spraying mode; the circuit board is not only washed but also is not impacted and displaced; the washed water can not splash around and only go down to clean loose residues and sewage on the circuit board;
the high-pressure air device consists of a high-pressure fan, a pipeline and a high-pressure jet box;
the high-pressure air jet box adopts the same jet principle as the water jet mode, so that more water on the circuit board is blown off;
as a further improvement of the scheme, the circuit board heating device 3 comprises an oil groove 301, wherein the oil groove 301 is respectively provided with an oil inlet 302 and an oil outlet 303, the oil outlet 303 is connected with an oil return channel 304, and the direction of a path formed from the oil inlet 302 to the oil outlet 303 is opposite to the conveying direction of the waste circuit board; the portion of the conveyor means 6 located in the oil sump 301 is a chain-mesh belt conveyor.
The chain mesh belt conveyor adopts a large ball chain to realize arbitrary steering in the mesh belt conveying process; settling the circuit board to a specified subsurface distance in the oil tank; the contact heat transfer between the circuit board and high-temperature oil is realized;
the oil groove 301 adopts a liquid flow direction opposite to the conveying direction of the mesh belt conveyor, and a baffle plate for overflow liquid level height is arranged at the tail part; the tail of the oil inlet 302 in the conveying direction of the conveyor; forming the reverse flow of the liquid flow direction and the conveying direction of the circuit board; heating the circuit board is realized;
meanwhile, a thermometer is arranged and is arranged inside the oil groove, and the thermometer is arranged in front of and behind the oil groove. The temperature change condition in the oil groove is monitored in real time, so that the conveying speed of the conveyor is convenient to adjust; ensuring that the heating time and the heating temperature reach ideal conditions;
as a further improvement of the scheme, the circuit board tin removing device 4 comprises a row of rollers 401 arranged in a sealed tin removing box 404, wherein the rollers 401 are driven by a roller motor 403, scraping blades 402 are arranged on the rollers 401, gaps are reserved between adjacent rollers 401 so that the waste circuit boards are lifted and scraped with the scraping blades 402 in the conveying process, the waste circuit boards after tin discharge are output through an inclined upward product discharge conveyor 606, and the output waste circuit boards are conveyed to the sorting device 8 through an inclined upward discharge sealed plate chain conveyor 605; when the circuit board has a force of lifting and moving forwards, the electric elements on the circuit board generate power assistance, so that the separation of the electric elements and the circuit board light plate is realized; and the separation of molten tin on the circuit board is realized by means of vibration in the whole process.
As a further improvement of the scheme, the deoiling equipment comprises a centrifugal deoiling barrel 25 and a light plate deoiling equipment 9, wherein the centrifugal deoiling barrel 25 is used for deoiling components, the light plate deoiling equipment 9 is used for deoiling light plates, the light plate deoiling equipment 9 comprises a first chain mesh belt conveyor 901 and a second chain mesh belt conveyor 905 which are arranged in a high-low continuous mode, an arch bridge 903 for overturning the light plates is arranged at the tail end of the first chain mesh belt conveyor 901, and a light plate deoiling brush 902 is respectively arranged on the first chain mesh belt conveyor 901 and the second chain mesh belt conveyor 905.
Specifically, the light panel deoiling device 9 further comprises a bracket and an oil recovery system, wherein the first chain mesh belt conveyor 901 and the second chain mesh belt conveyor 905 are both arranged on the bracket;
the light plate deoiling brush 902 consists of 3 groups of brush rollers, is driven by a speed reducer, and has the same prescription direction at the contact surface, and the rotation direction is opposite to the direction of the conveyor; the rotating speed is higher than the linear speed of the lower conveyor, so that the phenomena that the light plate enters the hairbrush and is not blocked, and the material is not turned over and blocked when passing through the gap of the hairbrush can be realized;
light panel turn-over device arched bridge 903: the dead weight unpowered form is adopted, and the turning action of the circuit board is completed by means of a guide plate at a given guide position after the circuit board is conveyed out by a conveyor; the upper layer and the lower layer of the conveyor are given enough height difference to realize the turning requirement; and the conveying of the lower conveyor to the optical plate is not affected;
oil recovery system: an oil receiving groove is formed below the net-connected conveyor. All the dropped oil hoppers enter the oil receiving groove and are converged together due to the height relationship, so that the oil hoppers can be used for filling oil in the oil sealing device;
as a further improvement of the scheme, the sorting device 8 comprises a distributing hopper, an inclined sorting sieve is arranged in the distributing hopper, a centrifugal degreasing barrel 25 is arranged below the distributing hopper, and the inclined top of the vibrating sieve is abutted against a chain mesh belt type conveyor I901. The sorting device adopts unpowered material dead weight and material size to realize sorting of the materials; the light plate is flat and falls onto the inclined chute from the conveyor. The inclined chute is a separating screen formed by welding the original strips, the rest parts are empty, and small electric elements fall from gaps of the original strips onto a lower conveyor to enter a centrifugal oil removal barrel 25. The large spot light sheet is slid from the chute onto the chain mesh belt conveyor one 901.
As a further improvement of the scheme, the high-temperature oil heating circulation device 2 comprises a heating tank 201, an oil outlet pump 202 and an oil return pump 203, wherein the heating tank 201 is connected with the oil outlet pump 202, the oil outlet pump 202 outputs high-temperature oil, and the oil return pump 203 is used for recycling the cooled high-temperature oil; the specific oil outlet pump 202 is communicated with the oil inlet 302 of the oil groove 301 and the sealed tin-removing box 404 for conveying high-temperature oil to the oil outlet pump, and the oil return pump 203 is communicated with the return channel 304 for cooling oil recovery.
Specifically, the heating pipes of the heating tank 201 are linked by flanges, and each group of heating pipes is composed of a plurality of U-shaped heating pipes; setting a heating environment thermometer in the middle position, and measuring the temperature of the highest temperature area in the middle of the heating pipe; as a yield test value, the oil temperature in a small area is prevented from being too high; creating a hazard;
oil thermometer: a thermometer is arranged in the middle of the heating tank 201 to measure the actual oil temperature; is a switch for determining whether the heating pipe heats or not; an oil level gauge: a magnetic liquid level meter is adopted, and an oil liquid level minimum point is set on the liquid level meter; the oil level is prevented from being too low, and the heating tube is exposed outside the oil to cause local high-temperature ignition of the heat conduction oil; liquid level alarm device: when the liquid level is lower than the designated height, the inductor on the liquid level meter will cut off the heating; and alarm.
As a further improvement of the scheme, the device also comprises a tin outlet lifting machine 204, a tin precipitation tank 205 and a conveying pipe 206, wherein the conveying pipe 206 stretches into the sealed tin stripping box 404 to introduce tin into the tin precipitation tank 205, and the tin outlet lifting machine 204 is used for lifting tin in the tin precipitation tank 205; at the same time, the oil in the sealed tin stripping tank 404 is also guided into the tin deposition tank 205 by the conveying pipe 206, and the tin deposition tank 205 is communicated with the oil return pump 203 so as to be used for cooling oil recovery.
As a further improvement of the scheme, the equipment also comprises a nitrogen making machine 26 and a fan 20; the nitrogen generator 26 adopts nitrogen and oxygen in compressed air to separate, and then obtains nitrogen gas, and the nitrogen gas is filled into the whole sealed tin-removing box 404 to prevent oil and oxygen from burning or exploding in a high-temperature state; the fan 20 provides a hot air internal circulation system 21 for the whole equipment; the conveyor means 6 is provided with a sealing liquid 22 on the chain-web conveyor at the part near the feed opening 601.
In the present embodiment, the structural principle of the conveyor device 6 is as shown in fig. 6:
the conveyer belt comprises a conveyer belt 600, wherein a chain track 602 is embedded in the conveyer belt, the chain track 602 is sleeved on a driving sprocket 603, and the driving sprocket 603 is driven by a driving motor 604.
Description of working principle:
the operation of the equipment is divided into a cleaning stage, a tin stripping stage and a component separation stage; firstly placing the waste circuit board in a cleaning tank in the cleaning stage, cleaning dust on the circuit board by using high-pressure water after ultrasonic cleaning, drying the circuit board by using high-pressure air after cleaning, and conveying the cleaned circuit board to a circuit board tin removing device by using a conveyor device for tin removing treatment; specifically, the high-temperature oil heating and circulating device heats high-temperature oil, the high-temperature oil is conveyed into a sealed tin removal treatment box by a pipeline, tin of components fixed on a circuit board is melted by utilizing heat, the molten tin is conveyed into a sealed product discharging conveyor for component separation procedures, the treated circuit board and electrical components are conveyed into a discharging sealing box of a lower discharging sealing plate chain conveyor by a sorting device, and the discharging sealing box is lifted to a subsequent oil treatment device by a conveyor; firstly, through the electrical component separating equipment, the inclined sliding chute is made into a vibrating screen by utilizing the relationship between the dead weight and the size of the material, the small electrical component falls onto a conveyor below to enter a centrifugal oil removal barrel, and the large optical plate slides onto a conveyor behind to enter the optical plate oil removal device. Oil on the electrical element is separated by adopting high-speed centrifugal deoiling equipment; oil on the circuit board light plate is treated by deoiling equipment;
in order to improve the production efficiency of the equipment, the heat conducting oil is required to be replaced periodically, and impurities such as clinker and the like in the circuit board are melted and mixed into air after the oil is heated, so that the oil can age according to the oil and the impurities are more; when the device is used for a certain amount, the device needs to be replaced; the replaced oil is used as an oil sealing part; or lubrication on other equipment; before starting up every day, checking the height of the liquid level of the oil level in the heating oil tank body, and judging whether the heating pipe is properly started; after each heating reaches a preset temperature, the circuit board can be put and fed; of particular note is: at each start of heating, nitrogen must be first charged to retard flame.
The final deoiled product is manually placed on a vibrating screen conveyor 24 and transferred to a vibrating screen 23 for final separation treatment.
As a final improvement of the embodiment, another implementation mode of the sorting device 8 comprises a sorting pipeline, a sorting scraper, a cylinder and a cylinder control component; the cylinder drives the powder scraping plate to move in a left-right circular arc manner, so that the material separation of the two channels is realized; controlling the material to be in a conveying direction from the action of the control cylinder; thereby realizing the separation of the optical plate and the components.
The foregoing description of the preferred embodiment of the invention is not intended to be limiting, but rather to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (8)
1. The utility model provides a be used for circuit board components and parts detinning equipment which characterized in that: the device comprises a cleaning device (1), a high Wen Youjia heat cycle device (2), a circuit board heating device (3), a circuit board tin removing device (4), a conveyor device (6) and a sorting device (8); the waste circuit board is conveyed into a sealed tin removing box (404) of a circuit board tin removing device (4) through a conveyor device (6) after dust removal, cleaning and blow drying are completed in a cleaning device (1), the circuit board heating device (3) is installed in a conveying path of the conveyor device (6) and used for preheating the waste circuit board, the high-temperature oil heating circulation device (2) provides high-temperature oil for the circuit board heating device (3) and the circuit board tin removing device (4), the waste circuit board after tin removing of the tin removing device (4) is conveyed to a sorting device (8) to complete separation of an optical plate and a component of the waste circuit board, the separated optical plate and the component enter a deoiling device to carry out deoiling treatment, the device also comprises a smoke removing device (5) for sealing the smoke dust treatment in the tin removing box (404), the smoke removing device (5) comprises a natural condensing box body (502), a pressure maintaining sealed sealing device (504), an active carbon tube (501) and a smoke dust absorbing port (503), the smoke dust absorbing port (503) is placed in the sealed tin removing box (502) and is connected with the natural condensing box (502) by utilizing the pressure maintaining sealed carbon tube (502), the other end of the sealed condensing device (502) is arranged on the natural condensing box (502), the circuit board heating device (3) comprises an oil groove (301), wherein the oil groove (301) is respectively provided with an oil inlet (302) and an oil outlet (303), the oil outlet (303) is connected with an oil return channel (304), and the direction of a path formed from the oil inlet (302) to the oil outlet (303) is opposite to the conveying direction of the waste circuit board; the part of the conveyor device (6) located in the oil sump (301) is a chain mesh belt conveyor.
2. The solder stripping apparatus for circuit board components as claimed in claim 1, wherein: the cleaning device (1) comprises a cleaning tank and a sedimentation tank (106), a filter screen is adopted between the cleaning tank and the sedimentation tank (106), the cleaning tank is sequentially divided into an ultrasonic cleaning area (101), a transitional draining area (105), a clear water cleaning area (102), a high-pressure blowing area (103) and a discharging area (104) according to the flow, and a waste circuit board is sequentially subjected to dust removal, cleaning and blow-drying and then is sent to a feeding port (601) of a conveyor device (6).
3. The solder stripping apparatus for circuit board components as claimed in claim 1, wherein: the circuit board tin stripping device (4) comprises a row of rollers (401) arranged in a sealed tin stripping box (404), the rollers (401) are driven by a roller motor (403), scraping blades (402) are arranged on the rollers (401), gaps are reserved between adjacent rollers (401) to enable waste circuit boards to be lifted up and down in the conveying process to be scraped with the scraping blades (402), the waste circuit boards after tin discharge are output through an inclined upward product discharging conveyor (606), and the output waste circuit boards are conveyed to the sorting device (8) through an inclined upward discharging sealed plate chain conveyor (605).
4. The solder stripping apparatus for circuit board components as claimed in claim 1, wherein: the deoiling equipment comprises a centrifugal deoiling barrel (25) and a light plate deoiling equipment (9), wherein the centrifugal deoiling barrel (25) is used for deoiling components, the light plate deoiling equipment (9) is used for deoiling a light plate, the light plate deoiling equipment (9) comprises a first chain mesh belt conveyor (901) and a second chain mesh belt conveyor (905) which are continuously arranged at a height and a height, an arch bridge (903) for overturning the light plate is arranged at the tail end of the first chain mesh belt conveyor (901), and light plate deoiling brushes (902) are respectively arranged on the first chain mesh belt conveyor (901) and the second chain mesh belt conveyor (905).
5. The tin removing apparatus for circuit board components as claimed in claim 4, wherein: the sorting device (8) comprises a distributing hopper, an inclined sorting screen is arranged in the distributing hopper, a centrifugal degreasing barrel (25) is arranged below the distributing hopper, and the inclined top of the sorting screen is abutted to a first chain mesh belt conveyor (901).
6. The tin stripping apparatus for circuit board components according to any one of claims 1 to 5, wherein: the high-temperature oil heating circulation device (2) comprises a heating tank (201), an oil outlet pump (202) and an oil return pump (203), wherein the heating tank (201) is connected with the oil outlet pump (202), the oil outlet pump (202) outputs high-temperature oil, and the oil return pump (203) is used for recycling cooled high-temperature oil.
7. The tin removing apparatus for circuit board components as claimed in claim 6, wherein: the tin stripping device is characterized by further comprising a tin outlet lifting machine (204), a tin precipitation tank (205) and a conveying pipe (206), wherein the conveying pipe (206) stretches into the sealed tin stripping box (404) to introduce tin into the tin precipitation tank (205), and the tin outlet lifting machine (204) is used for lifting tin in the tin precipitation tank (205).
8. The apparatus for solder stripping of circuit board components as claimed in claim 7, wherein: the device is characterized by further comprising a nitrogen making machine (26) and a fan (20), wherein nitrogen is obtained after nitrogen and oxygen in compressed air are separated by the nitrogen making machine (26), the nitrogen is filled into the whole sealed tin stripping box (404) to prevent oil and oxygen from burning or exploding in a high-temperature state, the fan (20) provides a hot air internal circulation system (21) for the whole device, and a chain mesh belt conveyor of a conveyor device (6) close to a feeding port (601) is provided with sealing liquid (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201711030260.3A CN107716514B (en) | 2017-10-30 | 2017-10-30 | De-tin equipment for circuit board components |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711030260.3A CN107716514B (en) | 2017-10-30 | 2017-10-30 | De-tin equipment for circuit board components |
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| CN107716514A CN107716514A (en) | 2018-02-23 |
| CN107716514B true CN107716514B (en) | 2024-03-08 |
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| CN108526639A (en) * | 2018-06-10 | 2018-09-14 | 河南巨峰环保科技有限公司 | Useless circuit board desoldering tin takes off electronic component device |
| CN109731844B (en) * | 2019-03-19 | 2021-10-01 | 江苏新安电器股份有限公司 | Device capable of cleaning surface soldering flux for products with different sizes |
| CN111961855B (en) * | 2020-06-02 | 2021-12-31 | 成都仁新科技股份有限公司 | Waste circuit board infrared heating detinning device |
| CN112246784A (en) * | 2020-10-19 | 2021-01-22 | 温州市疾彬电子科技有限公司 | Quick clear tin recovery unit of circuit board electronic component |
| CN113500051B (en) * | 2021-07-16 | 2023-02-21 | 兰州有色冶金设计研究院有限公司 | Circuit board soldering tin removing device and method |
| CN114308813A (en) * | 2021-12-21 | 2022-04-12 | 贵溪红石金属有限公司 | Copper strips washs drying equipment |
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Inventor after: Han Yubin Inventor after: Cheng Zhiqiang Inventor after: Wang Pengwei Inventor after: Li Wenxi Inventor after: Li Lei Inventor before: Wang Pengwei Inventor before: Cheng Zhiqiang Inventor before: Li Wenxi Inventor before: Li Lei |
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