CN114558831B - Recycling treatment process for copper foil production waste - Google Patents
Recycling treatment process for copper foil production waste Download PDFInfo
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- CN114558831B CN114558831B CN202210222092.2A CN202210222092A CN114558831B CN 114558831 B CN114558831 B CN 114558831B CN 202210222092 A CN202210222092 A CN 202210222092A CN 114558831 B CN114558831 B CN 114558831B
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 154
- 239000011889 copper foil Substances 0.000 title claims abstract description 110
- 238000004064 recycling Methods 0.000 title claims abstract description 42
- 239000002699 waste material Substances 0.000 title claims abstract description 37
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims abstract description 25
- 230000008569 process Effects 0.000 title claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 102
- 238000004140 cleaning Methods 0.000 claims abstract description 78
- 238000003756 stirring Methods 0.000 claims abstract description 48
- 230000007246 mechanism Effects 0.000 claims abstract description 37
- 238000001914 filtration Methods 0.000 claims abstract description 34
- 238000011084 recovery Methods 0.000 claims abstract description 24
- 239000010865 sewage Substances 0.000 claims abstract description 22
- 239000000463 material Substances 0.000 claims abstract description 16
- 238000005406 washing Methods 0.000 claims abstract description 12
- 238000005507 spraying Methods 0.000 claims abstract description 11
- 238000002156 mixing Methods 0.000 claims description 15
- 238000003860 storage Methods 0.000 claims description 14
- 230000000903 blocking effect Effects 0.000 claims description 11
- 238000002955 isolation Methods 0.000 claims description 6
- 239000011159 matrix material Substances 0.000 claims description 6
- 239000007921 spray Substances 0.000 claims description 5
- 230000002146 bilateral effect Effects 0.000 claims description 4
- 238000005056 compaction Methods 0.000 claims description 4
- 230000009471 action Effects 0.000 claims description 3
- 238000011010 flushing procedure Methods 0.000 claims description 3
- 230000005389 magnetism Effects 0.000 claims description 3
- 230000002035 prolonged effect Effects 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 claims 1
- 238000005096 rolling process Methods 0.000 claims 1
- 230000003749 cleanliness Effects 0.000 abstract description 3
- PTVDYARBVCBHSL-UHFFFAOYSA-N copper;hydrate Chemical compound O.[Cu] PTVDYARBVCBHSL-UHFFFAOYSA-N 0.000 abstract description 2
- 229920000742 Cotton Polymers 0.000 description 8
- 239000012535 impurity Substances 0.000 description 4
- 239000011324 bead Substances 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 230000000670 limiting effect Effects 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 238000007906 compression Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002001 electrolyte material Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Images
Classifications
-
- 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
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D36/00—Filter circuits or combinations of filters with other separating devices
- B01D36/02—Combinations of filters of different kinds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C4/00—Crushing or disintegrating by roller mills
- B02C4/02—Crushing or disintegrating by roller mills with two or more rollers
- B02C4/08—Crushing or disintegrating by roller mills with two or more rollers with co-operating corrugated or toothed crushing-rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/10—Cleaning by methods involving the use of tools characterised by the type of cleaning tool
- B08B1/16—Rigid blades, e.g. scrapers; Flexible blades, e.g. wipers
- B08B1/165—Scrapers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/20—Cleaning of moving articles, e.g. of moving webs or of objects on a conveyor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B15/00—Obtaining copper
- C22B15/0002—Preliminary treatment
- C22B15/0004—Preliminary treatment without modification of the copper constituent
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/005—Separation by a physical processing technique only, e.g. by mechanical breaking
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Metallurgy (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Organic Chemistry (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Food Science & Technology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention relates to the technical field of copper foil treatment, in particular to a copper foil production waste recycling treatment process, which comprises a treatment box, a crushing barrel, a crushing roller, a material guide hopper, a connecting seat and a cleaning barrel, wherein the material guide hopper is arranged on the treatment box; the method for cleaning the broken copper foil fragments has the advantages that the broken copper foil fragments are comprehensively cleaned in a mode that the water spraying mechanism is matched with the stirring mechanism, so that the problem that the cleaning cleanliness of the copper foil is low due to short contact time of the copper foil and water when the copper foil is cleaned in a traditional washing mode of the copper foil is solved, meanwhile, when the cleaned copper foil is filtered, the copper foil is filtered by the V-shaped filter belt, and the problem that partial cleaning sewage and the copper foil flow to the recovery box at the same time when the cleaned copper foil is filtered, so that the filtering efficiency of the copper foil is low is solved.
Description
Technical Field
The invention relates to the technical field of copper foil treatment, in particular to a recycling treatment process for copper foil production waste.
Background
The copper foil is a negative electrolyte material, a layer of thin and continuous metal foil is deposited on the basal layer of a circuit board and is used as a conductor of a PCB, the copper foil is cut into a moving size and then is adhered to a component when in use, copper foil waste generated after cutting can be treated and recycled, impurities generated during cutting are adhered to the generated copper foil waste, and therefore when the copper foil waste is recycled, the copper foil needs to be cleaned and filtered, and the purity of the recycled copper foil waste is guaranteed.
At present, when the copper foil waste is recycled, the crushed copper foil waste is directly washed to clean impurities on the surface of the copper foil, and then the cleaned copper foil is filtered and recycled, so that the following problems exist in the recycling treatment of the copper foil production waste: 1. the copper foil is cleaned in a flushing mode, so that the contact time of water to the copper foil is short, impurities on the copper foil are difficult to clean comprehensively, and the problem that the cleanliness of the copper foil is low is solved.
2. When the cleaned copper foil is filtered, part of the sewage easily enters the box body for recycling the copper foil together with the copper foil in the separation process of the cleaned sewage and the copper foil, so that the problem of low copper foil filtering efficiency is caused.
Disclosure of Invention
In order to solve the problems, the invention adopts the following technical scheme that the copper foil production waste recycling treatment process uses a copper foil production waste recycling treatment device, the copper foil production waste recycling treatment device comprises a treatment box, a crushing barrel, crushing rollers, a guide hopper, a connecting seat and a cleaning barrel, the upper end face of the treatment box is provided with the crushing barrel through a clip frame, the upper end opening of the crushing barrel is a feeding hole, the crushing barrel is rotationally connected with the crushing rollers which are symmetrically arranged leftwards and rightwards, the lower end face of the crushing barrel is provided with a circular-structure blanking hole, the lower end of the inner wall of the crushing barrel is provided with the guide hopper, the guide hopper is connected with the blanking hole through the connecting seat in an annular structure, the lower end face of the crushing barrel is provided with the cleaning barrel, the cleaning barrel is connected with the treatment box through a reinforcing rib, the inner wall of the crushing barrel is provided with a water spraying mechanism for cleaning the copper foil, a stirring mechanism for cleaning the copper foil is arranged in the cleaning barrel, a filtering mechanism is arranged between the front inner wall and the rear wall of the treatment box, the lower end face of the inner wall of the treatment box is provided with a water tank for containing sewage, and a drain pipe communicated with the water tank.
Rabbling mechanism includes the kuppe, the inner wall of wasing the bucket has the rotating electrical machines through the support mounting, the (mixing) shaft is installed to the output shaft of rotating electrical machines, the kuppe is installed to the up end of support, the cross-section of kuppe is the type of falling V structure, the kuppe is located the unloading hole under, the stirring that evenly arranges along its circumference is installed to the lateral wall of (mixing) shaft washs the pole, the one end downward sloping of (mixing) shaft is kept away from to the stirring washing pole, the fixing base is installed to the lower extreme discharge gate department of wasing the bucket, the fixing base is umbelliform structure, the up end and the (mixing) shaft rotation of fixing base are connected, the fixed cover of the lower extreme lateral wall of (mixing) shaft is equipped with isolated cover, isolated cover is umbelliform structure, and the lateral wall of isolated cover is hugged closely, the blow-off groove of evenly arranging along (mixing) shaft circumference is all seted up on isolated cover and the fixing base.
The filter mechanism includes the breakwater, the breakwater is all installed through bilateral symmetry's connecting strip to the inner wall around handling the case, two breakwaters are located the front and back both sides of the lower extreme discharge gate of washing bucket respectively around, it is connected with three rotation axis to rotate between two breakwaters, three rotation axis is triangle-shaped and arranges, the opposite face of two breakwaters all rotates and is connected with the axle of propping around, it is located the rotation axis top at middle part to prop the axle, be connected through the filter belt between the three rotation axis, the upside of filter belt is around propping a shaft lower extreme, the filter belt is the V type and arranges, the outside terminal surface of filter belt articulates has the fender send board of evenly arranging along its lateral wall, install the torsional spring between fender send board and the filter belt, the drainage through-hole that is arranged in the matrix is seted up to the lateral wall of fender send board, the material taking groove has been seted up to the left end face of handling the case, the collection case is installed the collection case at the inner wall left side below of filter belt, the material taking groove is located the upper left side of collection case, be provided with the compaction subassembly in the collection case.
The copper foil production waste recycling treatment device has the following specific treatment process during recycling treatment of copper foil production waste:
s1, crushing and washing: the copper foil waste materials are fed into the feeding hole, the fed copper foil waste materials are rolled and crushed through the left crushing roller and the right crushing roller, and the water spraying mechanism washes the copper foil fragments when the copper foil fragments fall downwards.
S2, stirring and cleaning: the washed copper foil fragments fall into a cleaning barrel from the blanking hole, and are cleaned and stirred by a stirring mechanism in the cleaning barrel;
s3, filtering and conveying: when the sewage and the copper foil fragments fall onto the filtering mechanism, the sewage flows downwards into the water tank through the filtering belt, and the copper foil fragments filtered on the filtering belt move leftwards under the conveying action of the filtering belt and the baffle plate.
S4, copper foil recovery: after the copper foil fragments fall into the recycling box, the compacting assembly in the recycling box extrudes and compresses the copper foil fragments.
As a preferred technical scheme of the invention, an inclined guide plate with the lower end inclined to the left side is arranged between the front water baffle and the rear water baffle, the inclined guide plate is positioned on the left side of the filter belt, the lower end of the inclined guide plate is positioned above the recovery box, a sliding groove is formed in the upper end surface of the inclined guide plate, a supporting strip is connected in the sliding groove in a sliding manner, the supporting strip is connected with the sliding groove through a pulling spring, an inclined cleaning plate is arranged on the upper end surface of the supporting strip, and the upper end of the inclined cleaning plate is tightly attached to the filter belt.
As a preferred technical scheme of the invention, the water spraying mechanism comprises a water storage tank, the water storage tank is arranged on the side wall of the crushing barrel, the left side and the right side of the inner wall of the crushing barrel are respectively provided with injection holes which are arranged in a matrix manner, the injection holes are communicated with the water storage tank, and the end surface of the right side of the crushing barrel is provided with an inlet pipe communicated with the water storage tank.
As a preferred technical scheme of the invention, support stirring rods which are uniformly distributed along the circumferential direction of the stirring shaft are arranged on the side wall of the stirring shaft, supporting legs which are distributed in an inverted splayed shape are arranged on the upper end surface of each support stirring rod, a cleaning roller is rotatably connected between the left corresponding supporting leg and the right corresponding supporting leg, a brush is arranged on the side wall of the cleaning roller, and the brush positioned at the upper end is tightly attached to the lower end surface of the crushing barrel.
As a preferable technical scheme of the invention, baffle plates for blocking the copper foil are respectively arranged on the left end surface and the right end surface of the inner wall of the crushing barrel, which are close to the feeding port.
According to a preferable technical scheme, the compaction assembly comprises a horizontal seat, the bottom of the recovery box is of a grid structure, the horizontal seat for supporting the recovery box is installed on the left end face of the inner wall of the treatment box, a vertically-through water drainage hole is formed in the lower end face of the horizontal seat, a compaction plate is installed on the left end face of the inner wall of the recovery box through an electric push rod, a water guide plate connected with the upper end face of the water tank is installed on the left end face of the inner wall of the treatment box, the water guide plate is located below the horizontal plate, and guide grooves which are distributed equidistantly from front to back are formed in the water guide plate.
As a preferred technical scheme of the invention, the front end surface and the rear end surface of the recovery box are respectively provided with a sliding groove, a pushing plate is connected between the two sliding grooves in a sliding manner, the left end surface of the pushing plate and the left end surface of the inner wall of the treatment box are respectively provided with a magnet, and the two magnets have opposite magnetism.
According to a preferred technical scheme, the left side and the right side of the inner wall of the water tank are respectively provided with a supporting seat, the upper ends of the two supporting seats are jointly provided with a filtering frame, the upper end face of the filtering frame is provided with a stepped groove, the lower step of the stepped groove is provided with a plurality of drainage grooves, filter cotton is placed on the upper step of the stepped groove, the left side and the right side of the upper step of the stepped groove are respectively provided with a fixed plate which is symmetrically arranged front and back, the fixed plate is connected with a moving rod in a sliding mode, the lower end of the moving rod is jointly provided with a return plate, the inner ring face of the return plate is provided with a stop block for limiting the filter cotton, the stop blocks are uniformly distributed along the inner ring face of the return plate, the fixed plate is provided with a spring groove, abutting balls are arranged in the spring groove through a squeezing spring, the side walls of the left side and the right side of the moving rod are respectively provided with clamping grooves which are equidistantly distributed from top to bottom, the abutting balls are clamped with the corresponding clamping grooves, the upper end faces of the front and back corresponding moving rods are connected through connecting rods, the right side of the upper end face of the filtering frame is provided with a lifting plate, and taking and placing groove communicated with the right end face of the treatment tank.
The invention has the beneficial effects that: 1. the method for cleaning the broken copper foil fragments has the advantages that the broken copper foil fragments are comprehensively cleaned in a mode that the water spraying mechanism is matched with the stirring mechanism, so that the problem that the cleaning cleanliness of the copper foil is low due to short contact time of the copper foil and water when the copper foil is cleaned in a traditional washing mode of the copper foil is solved, meanwhile, when the cleaned copper foil is filtered, the copper foil is filtered by the V-shaped filter belt, and the problem that partial cleaning sewage and the copper foil flow to the recovery box at the same time when the cleaned copper foil is filtered, so that the filtering efficiency of the copper foil is low is solved.
2. When the discharge groove on the isolation cover and the discharge groove on the fixing seat are completely staggered, the lower end of the cleaning barrel is of a closed structure, so that cleaning water and copper foil fragments are gathered in the cleaning barrel, the cleaning time of the cleaning water and the copper foil is prolonged, the cleaning degree of the copper foil in the recovery process is improved, and the problem that the cleaning degree of the copper foil is low because the copper foil is cleaned only in a flushing mode is solved.
3. According to the invention, the inclined cleaning plate is used for cleaning copper foil fragments adhered to the filter belt and the blocking and conveying plate, so that the problem that the copper foil fragments are directly adhered to the filter belt and the blocking and conveying plate and are difficult to recover due to thinness of the copper foil fragments is solved.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a flow chart of the present invention;
FIG. 2 is a schematic main perspective view of the present invention;
FIG. 3 is a schematic perspective view of the isolation cover and the fixing base of the present invention;
FIG. 4 is a schematic perspective view of the stirring mechanism of the present invention;
FIG. 5 is a schematic view of a partial perspective of the filter mechanism of the present invention;
FIG. 6 is a top view of the present invention;
FIG. 7 isbase:Sub>A cross-sectional view taken along line A-A of FIG. 6 in accordance with the present invention;
FIG. 8 is an enlarged view of the invention at B of FIG. 7;
FIG. 9 is an enlarged view of the invention at C of FIG. 7;
FIG. 10 is an enlarged view of the invention at D of FIG. 7;
FIG. 11 is an enlarged view of the invention at E of FIG. 7;
FIG. 12 is a schematic structural diagram of the filter frame, the filter cotton, the fixing plate and the clip plate according to the present invention.
In the figure: 1. a treatment tank; 2. a crushing barrel; 3. a crushing roller; 30. a baffle plate; 4. a material guide hopper; 5. a connecting seat; 6. a washing barrel; 7. a blanking hole; 8. a water spraying mechanism; 80. a water storage tank; 81. an injection hole; 82. an inlet pipe; 9. a stirring mechanism; 90. a stirring shaft; 901. a support stirring rod; 902. a support leg; 903. cleaning the roller; 904. a brush; 91. a dome; 92. stirring the cleaning rod; 93. a fixed seat; 94. an isolation cover; 95. a discharge chute; 10. a filtering mechanism; 12. a water baffle; 120. an inclined guide plate; 121. a sliding groove; 122. pulling the spring; 123. obliquely cleaning a plate; 13. a rotating shaft; 14. supporting the shaft; 15. a filter belt; 16. a blocking plate; 17. a drain through hole; 18. a material taking groove; 19. a recycling bin; 190. a horizontal base; 191. a drain hole; 192. compacting the plate; 193. a water guide plate; 194. a diversion trench; 195. pushing the plate; 196. a magnet; 11. a water tank; 110. a filter frame; 111. a leakage discharge groove; 112. filtering cotton; 113. a fixing plate; 114. a travel bar; 115. a return plate; 116. a stopper; 117. a spring slot; 131. pressing the beads tightly; 118. a card slot; 119. lifting the plate; 130. and (5) taking and placing the groove.
Detailed Description
Embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.
Referring to fig. 1, 2, 5 and 7, a copper foil production waste recycling treatment process uses a copper foil production waste recycling treatment device, which includes a treatment tank 1, a crushing barrel 2, crushing rollers 3, guide hoppers 4, connecting seats 5 and a cleaning barrel 6, wherein the crushing barrel 2 is mounted on the upper end face of the treatment tank 1 through a clip frame, a feed inlet is formed in an upper end opening of the crushing barrel 2, the crushing rollers 3 are rotationally connected with the crushing barrel 2 in a bilaterally symmetrical manner, a discharge hole 7 of a circular structure is formed in the lower end face of the crushing barrel 2, the guide hopper 4 is mounted at the lower end of the inner wall of the crushing barrel 2, the guide hopper 4 is connected with the discharge hole 7 through the connecting seat 5 of an annular structure, the cleaning barrel 6 is mounted on the lower end face of the crushing barrel 2, the cleaning barrel 6 is connected with the treatment tank 1 through reinforcing ribs, a water spraying mechanism 8 for cleaning copper foils is mounted on the inner wall of the crushing barrel 2, a stirring mechanism 9 for cleaning copper foils is mounted in the cleaning barrel 6, a filtering mechanism 10 is mounted between the front and rear inner walls of the treatment tank 1, a drain pipe 11 for cleaning the inner wall of the water tank is mounted on the rear end face of the treatment tank 1, and a drain pipe 11 is communicated with the rear end face of the water tank.
Referring to fig. 2, the separating baffles 30 for blocking the copper foil are respectively installed at the left end surface and the right end surface of the inner wall of the crushing barrel 2, which are close to the feeding port, and the separating baffles 30 prevent the fed copper foil from directly falling down from the side wall of the crushing barrel 2.
Refer to fig. 3, fig. 4, fig. 6 and fig. 7, rabbling mechanism 9 includes kuppe 91, there is the rotating electrical machines inner wall of cleaning barrel 6 through the support mounting, (mixing) shaft 90 is installed to the output shaft of rotating electrical machines, kuppe 91 is installed to the up end of support, the cross-section of kuppe 91 is the type of falling V structure, kuppe 91 is located blanking hole 7 under, stirring cleaning rod 92 along its circumference is evenly arranged is installed to the lateral wall of (mixing) shaft 90, stirring cleaning rod 92 keeps away from the one end downward sloping of (mixing) shaft 90, fixing base 93 is installed to the lower extreme discharge gate department of cleaning barrel 6, fixing base 93 is the umbelliform structure, the up end and the (mixing) shaft 90 rotation of fixing base 93 are connected, the fixed cover of the lower extreme lateral wall of (mixing) shaft 90 is fixed to be equipped with isolated cover 94, isolated cover 94 is the umbelliform structure, and isolated cover 94's lateral wall and fixing base 93's the lateral wall hug closely, isolated cover 94 and fixing base 93 are all seted up the blow-off groove 95 of evenly arranging along (mixing shaft 90 circumference.
The copper foil piece that washes falls into from unloading hole 7 and washs in the bucket 6, start rotating electrical machines, rotating electrical machines drives (mixing) shaft 90 and stirs and washs pole 92 rotation, thereby stir the washing to the copper foil in wasing the bucket 6, it rotates to drive isolated cover 94 at (mixing) shaft 90 pivoted in-process, when row's material tank 95 on isolated cover 94 and the row's material tank 95 on fixing base 93 are whole staggers, the lower extreme that washs the bucket 6 is enclosed construction, thereby make abluent water and copper foil piece gathering in wasing bucket 6, thereby the cleaning time of wasing water and copper foil has been increased, the clean degree of copper foil in the recovery process has been improved, avoided only washing the copper foil through the mode of washing, the problem that the clean degree of copper foil is low has been caused, when one of them row's material tank 95 on isolated cover 94 aligns with one of them row's material tank 95 on fixing base 93, partly abluent sewage and partial copper foil piece in wasing the bucket 6 flow out from row's material tank 95 downwards, fall to filtering separation on filtering mechanism 10.
Referring to fig. 4 and 7, the side wall of the stirring shaft 90 is provided with support stirring rods 901 which are uniformly arranged along the circumferential direction, the upper end surface of each support stirring rod 901 is provided with support legs 902 which are arranged in an inverted splayed shape, a cleaning roller 903 is rotatably connected between the left and right corresponding support legs 902, the side wall of the cleaning roller 903 is provided with a brush 904, the brush 904 at the upper end is tightly attached to the lower end surface of the crushing barrel 2, the stirring shaft 90 drives the cleaning roller 903 and the brush 904 to clean the lower end surface of the crushing barrel 2 through the support stirring rods 901 and the support legs 902 in the rotating process, and the stirring shaft 90 and the stirring and cleaning rod 92 are prevented from splashing water and copper foil fragments in the cleaning barrel 6 and adhering to the lower end surface of the crushing barrel 2 in the stirring and cleaning process.
Referring to fig. 6 and 7, the water spraying mechanism 8 includes a water storage tank 80, the water storage tank 80 has been seted up on the lateral wall of the crushing barrel 2, the jet orifice 81 that is the matrix and arranges has all been seted up to the inner wall left and right sides of crushing barrel 2, the jet orifice 81 is linked together with the water storage tank 80, the admission pipe 82 that is linked together with the water storage tank 80 is installed to the right side terminal surface of crushing barrel 2, the right-hand member of admission pipe 82 is connected with current water pump, the water pump is through the inlet tube to the water storage tank 80 in water delivery, water sprays to the crushing barrel 2 in through the jet orifice 81, the water that sprays washs kibbling copper foil piece, wash crushing roller 3 simultaneously, avoid being stained with the problem that more impurity leads to the not high purity of the copper foil of recovery on the copper foil.
Referring to fig. 5, 7 and 9, the filtering mechanism 10 includes water baffles 12, the water baffles 12 are mounted on the front and rear inner walls of the processing box 1 through connection strips arranged in bilateral symmetry, the front and rear water baffles 12 are respectively located on the front and rear sides of a discharge port at the lower end of the cleaning barrel 6, three rotating shafts 13 are rotatably connected between the two water baffles 12, the three rotating shafts 13 are arranged in a triangular shape, opposite surfaces of the front and rear water baffles 12 are rotatably connected with supporting shafts 14, the supporting shafts 14 are located above the rotating shafts 13 at the middle part, the three rotating shafts 13 are connected through a filtering belt 15, the upper side of the filtering belt 15 is wound at the lower end of the supporting shafts 14, the filtering belt 15 is arranged in a V-shape, the outer side end surface of the filtering belt 15 is hinged with baffle-feed plates 16 evenly arranged along the side wall thereof, torsion springs are mounted between the baffle-feed plates 16 and the filtering belt 15, drainage through holes 17 arranged in a matrix are formed in the side wall of the baffle-feed plates 16, a left end surface of the processing box 1 is provided with a material taking groove 18, a left end surface of the inner wall of the processing box 1 is provided with a recycling box 19, the recycling box 19 is located below the filtering belt 15, and a compacting assembly is provided in the recycling box 19.
The rear end of one of the rotating shafts 13 penetrates through the water baffles 12 and then is connected with the existing driving equipment, the existing driving equipment can drive the rotating shaft 13 to rotate if the existing driving equipment can drive the rotating shaft 13 to rotate, the rotating motor is started, the rotating shaft 13 connected with the rotating motor drives the rotating shaft 13 to rotate, the rotating shaft 13 rotates to drive the rest rotating shafts 13 to rotate through the filter belt 15, meanwhile, the filter belt 15 moves leftwards and rotates, the support shaft 14 is driven to rotate through friction force with the support shaft 14 in the moving process of the filter belt 15, when cleaned sewage and copper foil fragments fall onto the filter belt 15 between the front water baffle 12 and the rear water baffle 12, the cleaned sewage flows downwards through filter holes in the filter belt 15 and enters the water tank 11, the filter belt 15 is arranged in a V shape and is limited through the front water baffle 12 and the rear water baffle 12, so that when the traditional inclined filter plate is used for filtering the copper foil fragments, partial cleaned sewage does not fall downwards from the filter plate and directly enters the water tank for collecting the copper foil fragments, in the filter belt 15, in the process that the residual copper foil fragments are removed downwards along with the limiting effect of the filter plate 16, and the filter belt 15, and the residual fragments are prevented from falling into the left side of the filter belt 15 and then directly falling into the water conveying box 16, and then the filter belt 16, and the filter belt 15, the residual water conveying the filter belt 16 is prevented from falling.
Referring to fig. 7 and 8, an inclined guide plate 120 with a lower end inclined to the left is installed between the front and rear water baffles 12, the inclined guide plate 120 is located on the left side of the filter belt 15, the lower end of the inclined guide plate 120 is located above the recycling box 19, a sliding groove 121 is formed in the upper end face of the inclined guide plate 120, a supporting strip is connected in the sliding groove 121 in a sliding manner, the supporting strip is connected with the sliding groove 121 through a pulling spring 122, an inclined cleaning plate 123 is installed on the upper end face of the supporting strip, the upper end of the inclined cleaning plate 123 is attached to the filter belt 15, the inclined cleaning plate 123 is attached to the outer side wall of the filter belt 15 under the pulling elastic force of the pulling spring 122, so that copper foil fragments attached to the side wall of the filter belt 15 are scraped, when the upper end of the inclined cleaning plate 123 abuts against the blocking and conveying plate 16, the blocking and conveying plate 16 is pushed to turn over, meanwhile, the inclined cleaning plate 123 moves downwards for a distance, the blocking and the blocking plate 16 is convenient to move smoothly, and the problem that the copper foil fragments attached to the filtering belt 15 and the blocking plate 16 are difficult to recycle due to being directly attached to the thin filtering belt 15 is solved.
Referring to fig. 7 and 10, the compacting assembly includes a horizontal seat 190, the bottom of the recycling bin 19 is of a grid structure, the horizontal seat 190 supporting the recycling bin 19 is installed on the left end surface of the inner wall of the processing bin 1, a water drainage hole 191 penetrating up and down is formed in the lower end surface of the horizontal seat 190, a compacting plate 192 is installed on the left end surface of the inner wall of the recycling bin 19 through an electric push rod, a water guide plate 193 connected with the upper end surface of the water tank 11 is installed on the left end surface of the inner wall of the processing bin 1, the water guide plate 193 is located below the horizontal plate, and guide grooves 194 equidistantly arranged from front to back are formed in the water guide plate 193.
Referring to fig. 7, sliding grooves are formed in the front end surface and the rear end surface of the recycling box 19, a pushing plate 195 is connected between the two sliding grooves in a sliding manner, magnets 196 are mounted on the left end surface of the pushing plate 195 and the left end surface of the inner wall of the processing box 1, and the two magnets 196 are opposite in magnetism.
The magnet 196 adsorbs the pushing plate 195 to the left end face of the inner wall of the processing box 1, when a certain amount of copper foil fragments are recovered in the recovery box 19, the electric telescopic rod pushes the compacting plate 192 to push and compress the copper foil fragments to the left, so that the space occupation ratio of the copper foil fragments in the recovery process is reduced, the recovered copper foil fragments are convenient to collect, the pushing plate 195 limits the compressed copper foil fragments, the copper foil fragments are prevented from moving out of the recovery box 19 upwards in the compression process, the water adhered to the surface of the copper foil fragments in the compression process of the copper foil fragments after entering the recovery box 19 flows downwards through a grid at the bottom of the recovery box 19, the flowing water flows into the water tank 11 through the drain hole 191 and the water guide plate 193, meanwhile, the flowing water is guided by the guide groove 194 on the water guide plate 193, after the copper foil fragments are recovered, the pushing plate 195 is pushed to the right, and then the compressed copper foil is taken out.
Referring to fig. 7, fig. 11 and fig. 12, the supporting seats are installed on the left and right sides of the inner wall of the water tank 11, the filter frame 110 is placed on the upper ends of the two supporting seats, a stepped groove is formed in the upper end surface of the filter frame 110, the lower step of the stepped groove is provided with a plurality of drainage grooves 111, filter cotton 112 is placed on the upper step of the stepped groove, fixing plates 113 symmetrically arranged front and back are installed on the left and right sides of the upper step of the stepped groove, a moving rod 114 is connected to the fixing plates 113 in a sliding manner, a return plate 115 is installed on the lower end of the moving rod 114, a stopper 116 used for limiting the filter cotton 112 is installed on the inner ring surface of the return plate 115, the stopper 116 is uniformly arranged along the inner ring surface of the return plate 115, a spring groove 117 is formed in the fixing plates 113, abutting beads 131 are installed in the spring groove 117 by pushing the spring, clamping grooves 118 are formed in the left and right side walls of the moving rod 114, the downward equidistant arrangement from the abutting beads 131 are clamped with the corresponding clamping grooves 118, the upper end surfaces of the front and back corresponding moving rods 114 are connected through connecting rods, a lifting plate is installed on the right side of the upper end surface of the filter frame 110, and the right end surface of the treatment tank 1, and the right end surface 130 is connected with the treatment tank 1.
After sewage enters the water tank 11, the sewage slowly flows downwards from the filter cotton 112 on the filter rack 110 and then flows out from the drain pipe, the filter cotton 112 filters crushed copper foil powder contained in the sewage, and therefore the problem of pollution caused by outflow of the sewage containing partial copper foil powder is avoided.
A copper foil production waste recycling treatment process comprises the following steps: s1, crushing and washing: send into the copper foil waste material from the feed inlet, two rear ends of smashing roller 3 all run through crushing bucket 2, two rear ends of smashing roller 3 all are connected with drive its drive arrangement that carries out the pivoted, two drive arrangement drive about two smash roller 3 carry out the roll extrusion to the copper foil waste material of sending into and smash, kibbling copper foil piece powder drops to the unloading hole 7 of smashing 2 lower extremes, water spray mechanism 8 washes the copper foil piece when the copper foil piece drops downwards.
S2, stirring and cleaning: the copper foil piece that washes falls into in wasing the bucket 6 from feed opening 7 whereabouts, then washs the stirring through the rabbling mechanism 9 in wasing the bucket 6, and when the row material tank 95 on isolated cover 94 aligns with row material tank 95 on the fixing base 93, abluent sewage flows to treatment case 1 from row material tank 95 with the copper foil piece at the in-process of stirring.
S3, filtering and conveying: when the sewage and the copper foil fragments fall onto the filter mechanism 10, the sewage flows down into the water tank 11 through the filter belt 15, and the copper foil fragments filtered on the filter belt 15 move to the left by the conveying action of the filter belt 15 and the baffle 16, and when the filter belt 15 conveys the copper foil fragments to the left side of the filter belt 15, the copper foil fragments fall down into the recovery tank 19.
S4, copper foil recovery: after the copper foil shreds are dropped into the recycling bin 19, a compacting assembly within the recycling bin 19 compresses the copper foil shreds.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (8)
1. The utility model provides a copper foil production waste material processing technology of recycling, its has used a copper foil production waste material processing apparatus of recycling, and this copper foil production waste material processing apparatus of recycling is including handling case (1), crushing bucket (2), crushing roller (3), guide fill (4), connecting seat (5) and washing bucket (6), the up end of handling case (1) is installed through returning the shape frame and is smashed bucket (2), and the upper end opening part of smashing bucket (2) is the feed inlet, and crushing bucket (2) internal rotation is connected with crushing roller (3) that bilateral symmetry arranged, and the feed opening (7) of circular structure are seted up to lower terminal surface under smashing bucket (2), and guide fill (4) are installed to the inner wall lower extreme of smashing bucket (2), are connected through annular structure's connecting seat (5) between guide fill (4) and feed opening (7), and wash bucket (6) are installed to the lower terminal surface of smashing bucket (2), wash through being connected between bucket (6) and handling case (1), its characterized in that: a water spraying mechanism (8) for cleaning a copper foil is installed on the inner wall of the crushing barrel (2), a stirring mechanism (9) for cleaning the copper foil is installed in the cleaning barrel (6), a filtering mechanism (10) is installed between the front inner wall and the rear inner wall of the treatment box (1), a water tank (11) for containing sewage is installed on the lower end face of the inner wall of the treatment box (1), a drain pipe communicated with the water tank (11) is installed at the rear end of the water tank, and the rear end of the drain pipe penetrates through the treatment box (1);
the stirring mechanism (9) comprises a flow guide cover (91), a rotating motor is mounted on the inner wall of the cleaning barrel (6) through a support, a stirring shaft (90) is mounted on an output shaft of the rotating motor, the flow guide cover (91) is mounted on the upper end face of the support, the cross section of the flow guide cover (91) is of an inverted V-shaped structure, the flow guide cover (91) is located right below the blanking hole (7), stirring cleaning rods (92) which are uniformly distributed along the circumferential direction of the stirring shaft (90) are mounted on the side wall of the stirring shaft (90), one end, away from the stirring shaft (90), of each stirring cleaning rod (92) inclines downwards, a fixing seat (93) is mounted at a lower end discharge port of the cleaning barrel (6), the fixing seat (93) is of an umbrella-shaped structure, the upper end face of the fixing seat (93) is rotatably connected with the stirring shaft (90), an isolation cover (94) is fixedly sleeved on the lower end side wall of the stirring shaft (90), the isolation cover (94) is of the umbrella-shaped structure, the side wall of the isolation cover (94) is tightly attached to the side wall of the fixing seat (93), and discharge grooves (95) which are uniformly distributed along the circumferential direction of the stirring shaft (90) are formed in the circumferential direction;
the cleaning device is characterized in that the insulating cover (94) is driven to rotate in the rotating process of the stirring shaft (90), when the discharge groove (95) on the insulating cover (94) and the discharge groove (95) on the fixing seat (93) are completely staggered, the lower end of the cleaning barrel (6) is of a closed structure, so that cleaning water and copper foil fragments are gathered in the cleaning barrel (6), the cleaning time of cleaning water and copper foils is prolonged, and when one of the discharge grooves (95) on the insulating cover (94) is aligned with one of the discharge grooves (95) on the fixing seat (93), partial cleaning sewage and partial copper foil fragments in the cleaning barrel (6) flow downwards from the discharge groove (95);
the filter mechanism (10) comprises water baffles (12), the front inner wall and the rear inner wall of the treatment box (1) are respectively provided with the water baffles (12) through connecting strips which are arranged in bilateral symmetry, the front water baffle (12) and the rear water baffle (12) are respectively positioned at the front side and the rear side of a discharge port at the lower end of the cleaning barrel (6), three rotating shafts (13) are rotatably connected between the two water baffles (12), the three rotating shafts (13) are arranged in a triangular shape, opposite surfaces of the front water baffle (12) and the rear water baffle (12) are respectively rotatably connected with supporting shafts (14), the supporting shafts (14) are positioned above the rotating shafts (13) at the middle part, the three rotating shafts (13) are connected through filter belts (15), the upper side of each filter belt (15) is wound at the lower end of the supporting shafts (14), the filter belts (15) are arranged in a V shape, the end surfaces at the outer sides of the filter belts (15) are hinged with baffle plates (16) which are uniformly arranged along the side walls of the filter belts, torsion springs are arranged between the baffle plates (16) and the filter belts (15), the side walls of the baffle plates (16) are provided with drainage through holes (17) which are arranged in a matrix, the left side walls of the treatment box (1) are provided with compacted material taking tank (19), a recovery tank (19) arranged in the left side surface of the recovery tank (19), and a recovery tank (19) arranged below the recovery tank (19) are arranged in the recovery tank (19);
the specific treatment process for recycling the copper foil production waste by adopting the copper foil production waste recycling treatment device is as follows:
s1, crushing and washing: feeding copper foil waste from a feeding hole, rolling and crushing the fed copper foil waste by using a left crushing roller and a right crushing roller (3), and flushing the copper foil fragments by using a water spraying mechanism (8) when the copper foil fragments fall downwards;
s2, stirring and cleaning: the washed copper foil fragments fall into a cleaning barrel (6) from a blanking hole (7), and then are cleaned and stirred by a stirring mechanism (9) in the cleaning barrel (6);
s3, filtering and conveying: when the sewage and the copper foil fragments fall onto the filtering mechanism (10), the sewage flows downwards into the water tank (11) through the filtering belt (15), and the copper foil fragments filtered on the filtering belt (15) move leftwards under the conveying action of the filtering belt (15) and the baffle plate (16);
s4, copper foil recovery: after the copper foil fragments fall into the recycling bin (19), a compacting assembly in the recycling bin (19) presses and compresses the copper foil fragments.
2. The recycling process of copper foil production waste according to claim 1, wherein: two from beginning to end manger plate (12) between install oblique baffle (120) of lower extreme to left side slope, oblique baffle (120) are located the left side of cassette (15), the lower extreme of oblique baffle (120) is located the top of collection box (19), groove (121) that slide has been seted up to the up end of oblique baffle (120), sliding connection has the support bar in groove (121) that slides, be connected through pulling spring (122) between support bar and the groove (121) that slides, oblique clear board (123) are installed to the up end of support bar, the upper end of oblique clear board (123) is hugged closely with cassette (15) mutually.
3. The recycling process of copper foil production waste according to claim 1, characterized in that: the water spraying mechanism (8) comprises a water storage tank (80), the water storage tank (80) is arranged on the side wall of the crushing barrel (2), spray holes (81) which are arranged in a matrix mode are arranged on the left side and the right side of the inner wall of the crushing barrel (2), the spray holes (81) are communicated with the water storage tank (80), and an inlet pipe (82) communicated with the water storage tank (80) is installed on the end face of the right side of the crushing barrel (2).
4. The recycling process of copper foil production waste according to claim 1, wherein: support stirring rod (901) that evenly arranges along its circumference is installed to the lateral wall of (mixing) shaft (90), and landing leg (902) that are the type of falling eight are arranged are installed to the up end of support stirring rod (901), rotate between two corresponding landing legs (902) of left and right sides and be connected with cleaning roller (903), and brush (904) are installed to the lateral wall of cleaning roller (903), and brush (904) that are located the upper end hug closely with the lower terminal surface of smashing bucket (2).
5. The recycling process of copper foil production waste according to claim 1, wherein: baffle plates (30) used for blocking the copper foil are arranged on the left end face and the right end face of the inner wall of the crushing barrel (2) close to the feeding port.
6. The recycling process of copper foil production waste according to claim 1, wherein: the compaction subassembly includes horizontal seat (190), the bottom of collection box (19) is the grid structure, horizontal seat (190) that support collection box (19) are installed to the inner wall left end face of handling case (1), wash port (191) that link up from top to bottom are seted up to the lower terminal surface of horizontal seat (190), compacting plate (192) are installed through electric putter to the inner wall left end face of collection box (19), water guide plate (193) that are connected with water tank (11) up end are installed to the inner wall left end face of handling case (1), water guide plate (193) are located the below of horizontal plate, set up guiding gutter (194) of arranging in the past backward equidistance on water guide plate (193).
7. The recycling process of copper foil production waste according to claim 1, wherein: sliding grooves are formed in the front end face and the rear end face of the recycling box (19), a pushing plate (195) is connected between the two sliding grooves in a sliding mode, magnets (196) are installed on the left end face of the pushing plate (195) and the left end face of the inner wall of the processing box (1), and the two magnets (196) are opposite in magnetism.
8. The recycling process of copper foil production waste according to claim 1, characterized in that: the supporting seat is all installed to the inner wall left and right sides of water tank (11), filter frame (110) have been placed jointly to the upper end of two supporting seats, the ladder recess has been seted up to the up end of filter frame (110), a plurality of drainage groove (111) have been seted up to the lower ladder of ladder recess, filter pulp (112) have been placed on the last ladder of ladder recess, symmetrical arrangement's fixed plate (113) around last ladder left and right sides all is installed to the last ladder of ladder recess, sliding connection has carriage release lever (114) on fixed plate (113), return shaped plate (115) is installed jointly to the lower extreme of carriage release lever (114), return shaped plate (115)'s interior anchor ring and install and be used for carrying out spacing dog (116) to filter pulp (112), dog (116) are evenly arranged along the interior anchor ring of returning shaped plate (115), spring groove (117) have been seted up on fixed plate (113), install through crowded push spring and support tight pearl (131) in spring groove (117), draw from last draw the right-hand member (118) that the downward equidistance was arranged of left and right-hand member (110) were seted up and handle on the right side wall (1) that link (119) was linked together.
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| CN202210222092.2A CN114558831B (en) | 2022-03-07 | 2022-03-07 | Recycling treatment process for copper foil production waste |
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| CN203862579U (en) * | 2014-04-21 | 2014-10-08 | 昆山达功电子有限公司 | Copper foil cleaning machine based on side moving |
| CN206778544U (en) * | 2017-06-07 | 2017-12-22 | 安庆师范大学 | A kind of 16 years of age takes seed with mechanical potyvirus disintegrating machine |
| KR102187627B1 (en) * | 2018-10-19 | 2020-12-07 | 한국산업기술시험원 | Method for recycling combustible waste and apparatus therefore |
| CN209812865U (en) * | 2019-02-14 | 2019-12-20 | 重庆宝昌包装有限公司 | Waste recovery device for plastic uptake material |
| CN210523207U (en) * | 2019-07-23 | 2020-05-15 | 王秀娥 | Medicinal material cleaning equipment for traditional chinese medicine processing |
| CN211133148U (en) * | 2019-11-18 | 2020-07-31 | 江西铜博科技有限公司 | Novel electrolytic copper foil leftover material recycling device |
| CN112915600B (en) * | 2021-02-02 | 2021-09-14 | 广东嘉元科技股份有限公司 | Multi-medium filter for filtering tap water |
| CN113083433B (en) * | 2021-04-08 | 2024-05-17 | 重庆明辉动霸科技有限公司 | Smashing waste recycling device for hardware processing |
| CN215464698U (en) * | 2021-05-19 | 2022-01-11 | 广州优箔良材科技有限公司 | Aluminum foil splitting machine convenient to retrieve waste material |
| CN113333140B (en) * | 2021-08-07 | 2021-10-29 | 江苏通和沥青混凝土有限公司 | Fiber concrete additive fiber smashing device |
| CN113413677B (en) * | 2021-08-23 | 2021-11-02 | 江苏大彭环保科技有限公司 | Papermaking industry waste water filtration treatment device |
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