CN112404099A - Circuit board waste residue treatment equipment - Google Patents
Circuit board waste residue treatment equipment Download PDFInfo
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- CN112404099A CN112404099A CN202011183337.2A CN202011183337A CN112404099A CN 112404099 A CN112404099 A CN 112404099A CN 202011183337 A CN202011183337 A CN 202011183337A CN 112404099 A CN112404099 A CN 112404099A
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- circuit board
- spraying
- waste residue
- board waste
- pressurizing
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- 239000002253 acid Substances 0.000 claims abstract description 182
- 238000005507 spraying Methods 0.000 claims abstract description 156
- 238000003825 pressing Methods 0.000 claims abstract description 53
- 238000005096 rolling process Methods 0.000 claims abstract description 45
- 238000001035 drying Methods 0.000 claims abstract description 42
- 239000000706 filtrate Substances 0.000 claims abstract description 37
- 230000007246 mechanism Effects 0.000 claims abstract description 21
- 238000007599 discharging Methods 0.000 claims abstract description 14
- 239000007788 liquid Substances 0.000 claims description 59
- 230000000694 effects Effects 0.000 abstract description 37
- 239000013585 weight reducing agent Substances 0.000 abstract description 19
- 230000018044 dehydration Effects 0.000 abstract description 12
- 238000006297 dehydration reaction Methods 0.000 abstract description 12
- 239000000243 solution Substances 0.000 description 100
- 239000007921 spray Substances 0.000 description 39
- 238000006386 neutralization reaction Methods 0.000 description 24
- 238000012545 processing Methods 0.000 description 17
- 239000002245 particle Substances 0.000 description 16
- 238000010981 drying operation Methods 0.000 description 15
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- 238000000034 method Methods 0.000 description 7
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- 239000002351 wastewater Substances 0.000 description 7
- 238000005485 electric heating Methods 0.000 description 5
- 238000009713 electroplating Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
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- 238000001514 detection method Methods 0.000 description 4
- 239000002920 hazardous waste Substances 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 239000003929 acidic solution Substances 0.000 description 3
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- 238000006243 chemical reaction Methods 0.000 description 3
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- 229910052802 copper Inorganic materials 0.000 description 3
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- 238000010298 pulverizing process Methods 0.000 description 2
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- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 description 1
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Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0086—Processes carried out with a view to control or to change the pH-value; Applications of buffer salts; Neutralisation reactions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J4/00—Feed or outlet devices; Feed or outlet control devices
- B01J4/001—Feed or outlet devices as such, e.g. feeding tubes
- B01J4/002—Nozzle-type elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C19/00—Other disintegrating devices or methods
- B02C19/22—Crushing mills with screw-shaped crushing means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B9/00—Presses specially adapted for particular purposes
- B30B9/02—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material
- B30B9/20—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using rotary pressing members, other than worms or screws, e.g. rollers, rings, discs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2204/00—Aspects relating to feed or outlet devices; Regulating devices for feed or outlet devices
- B01J2204/002—Aspects relating to feed or outlet devices; Regulating devices for feed or outlet devices the feeding side being of particular interest
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C2201/00—Codes relating to disintegrating devices adapted for specific materials
- B02C2201/06—Codes relating to disintegrating devices adapted for specific materials for garbage, waste or sewage
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B2101/00—Type of solid waste
- B09B2101/02—Gases or liquids enclosed in discarded articles, e.g. aerosol cans or cooling systems of refrigerators
-
- 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
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Environmental & Geological Engineering (AREA)
- Food Science & Technology (AREA)
- Mechanical Engineering (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The application provides a circuit board waste residue treatment facility. The circuit board waste residue treatment equipment comprises an acid liquor spraying device, a rolling device, a movable grid and a centrifugal crushing device. The acid liquor spraying device comprises an acid liquor box, a pressurizing piece and a spraying piece, wherein the pressurizing piece is connected to the acid liquor box, an acid liquor groove is formed in the acid liquor box, the pressurizing piece is communicated with the acid liquor groove, the spraying piece is connected to the pressurizing piece, and the spraying piece is communicated with the pressurizing piece; the rolling device comprises at least two oppositely arranged press wheels, and each press wheel is arranged at a position corresponding to the spraying piece; the movable grid comprises a filtrate part and a drying part, the filtrate part is arranged at a position corresponding to the pressing wheel, and the drying part is connected with the filtrate part; the centrifugal crushing device is provided with a feed hopper, a centrifugal crushing mechanism and a discharging part. The circuit board waste residue treatment equipment is easy to operate, and has good weight reduction effect and dehydration effect on films and ink residues.
Description
Technical Field
The invention relates to the technical field of printed circuit board manufacturing, in particular to circuit board waste residue treatment equipment.
Background
In the production process of the printed circuit board, an organic dry film and a wet film are mainly used as an anti-electroplating resistance agent or an anti-corrosion agentResist etching agent. When the electroplating is finished or after the etching is finished, the organic film resist is generally removed by using NaOH solution, and waste residues such as developing ink residues, film-removing ink residues, developing dry circuit board waste residues and film-removing dry circuit board waste residues are generated. The circuit board waste residue generated after the dry film is removed is strong alkaline and high in COD (chemical oxygen demand), and contains resin and a large amount of organic matters. The waste residue of circuit board is in semi-solid form, and its water content is as high as
The dry circuit board waste residue belongs to HW12 branch in national hazardous waste records, has no economic value and is shipped to an incineration plant by HW12 qualified manufacturers for incineration treatment. Since the implementation of the environmental protection law of the people's republic of China, environmental management in various regions is continuously tightened, the qualification and the treatment capacity of various hazardous waste disposal units are strictly controlled, and the treatment cost of various hazardous wastes is on the rise. The ' look back ' environment supervision work of central supervision group has carried out partial pause or limited operation to some regional hazardous waste's processors, leads to useless circuit board waste residue backlog to handle in time.
The existing circuit board waste residue weight reduction equipment generally has the problems of low weight reduction efficiency and incapability of effectively reducing the weight of wet circuit board waste residue, and although the weight reduction effect can reach 60-70% through dispersion, talcum powder separation and filter pressing and acid precipitation neutralization, the existing circuit board waste residue weight reduction equipment also has the problems of manual operation, complex process and high labor intensity. In addition, although some circuit board waste residue subtracts heavy equipment and has collocation toasted equipment, still have the problem that circuit board waste residue moisture content is higher.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide the circuit board waste residue treatment equipment which is easy to operate and has better weight reduction effect and dehydration effect on the circuit board waste residue.
The purpose of the invention is realized by the following technical scheme:
a circuit board waste residue treatment device comprises
The acid liquor spraying device comprises an acid liquor box, a pressurizing piece and a spraying piece, wherein the pressurizing piece is connected to the acid liquor box, an acid liquor groove is formed in the acid liquor box, the pressurizing piece is communicated with the acid liquor groove, the pressurizing piece is used for pressurizing acid liquor, the spraying piece is connected to the pressurizing piece, and the spraying piece is communicated with the pressurizing piece;
the rolling device comprises at least two oppositely arranged press wheels, and each press wheel is arranged at a position corresponding to the spraying piece;
the movable grid comprises a filtrate part and a drying part, the filtrate part is arranged at a position corresponding to the pressing wheel, and the drying part is connected with the filtrate part;
centrifugal reducing mechanism, centrifugal reducing mechanism has seted up feeder hopper, centrifugal rubbing crusher and ejection of compact portion, the feed inlet has been seted up to the feeder hopper, centrifugal rubbing crusher has seted up the centrifugal crushing chamber, first discharge gate has been seted up to ejection of compact portion, the feed inlet passes through the centrifugal crushing chamber with first discharge gate intercommunication, the feed inlet set up in dry by the fire the dry part is kept away from the position that the one end of filtrate portion corresponds.
In one embodiment, the circuit board waste residue treatment equipment further comprises a feeding device, and the feeding device is arranged at a position corresponding to the spraying piece.
In one embodiment, the acid liquid tank comprises a first acid liquid tank and a second acid liquid tank, and an acid liquid tank of the first acid liquid tank and an acid liquid tank of the second acid liquid tank are respectively arranged on two sides of the feeding device;
the pressurizing parts comprise a first pressurizing part and a second pressurizing part, the first pressurizing part is connected to the first acid liquid tank, the first pressurizing part is communicated with the first acid liquid tank, the second pressurizing part is connected to the second acid liquid tank, and the second pressurizing part is communicated with the second acid liquid tank;
the spraying part comprises a first spraying part and a second spraying part, the first spraying part is connected to the first pressurizing part, the first spraying part is communicated with the first pressurizing part, the second spraying part is connected to the second pressurizing part, and the second spraying part is communicated with the second pressurizing part.
In one embodiment, the rolling device comprises two oppositely arranged press wheels.
In one embodiment, the first spraying part is arranged corresponding to one of the pinch rollers, the second spraying part is arranged corresponding to the other pinch roller, and the spraying port of the first spraying part and the spraying port of the second spraying part are arranged corresponding to the space between the two pinch rollers.
In one embodiment, the feeding device comprises a feeding hopper, the feeding hopper is provided with a second discharge hole, and the second discharge hole is positioned between the first spraying piece and the second spraying piece.
In one embodiment, the second discharge hole is flat.
In one embodiment, the discharge end of the feeding hopper is respectively provided with a first flat surface and a second flat surface, the first flat surface and the second flat surface are arranged in parallel to form the second flat discharge port, the first flat surface faces the first spraying piece, and the second flat surface faces the second spraying piece.
In one embodiment, the gap between the two pressing wheels corresponds to the second discharge hole, and the projection of the second discharge hole towards the space between the two pressing wheels is at least partially positioned on the two pressing wheels respectively.
In one embodiment, the circuit board waste residue treatment equipment further comprises a waste liquid collecting box, and the waste liquid collecting box is arranged at the corresponding position of the filtrate part.
Compared with the prior art, the invention has at least the following advantages:
1. the acid liquor spraying device can uniformly spray the acid liquor into the circuit board waste residues, so that the strong basicity of the circuit board waste residues is fully neutralized, and the subsequent treatment of the circuit board waste residues and waste liquor is facilitated. Because the roll-in device passes through the extrusion between the pinch roller again, extrudees out the moisture in the circuit board waste residue, then filters and dries through the filtrating portion and the stoving portion that remove the net in proper order, because the circuit board waste residue has got rid of most solution through roll-in device's extrusion, cooperates the stoving portion again and carries out the stoving operation, makes the circuit board waste residue reach better drying effect, makes the moisture content of circuit board waste residue be less than 3%. After the drying operation is finished, the dried circuit board waste residue is pushed into the centrifugal smashing device, so that the circuit board waste residue becomes dry film particles, a better weight reduction effect and a dehydration effect are achieved, the quality of the circuit board waste residue is reduced, the processing of the circuit board waste residue is facilitated, and the processing cost is greatly reduced.
2. The circuit board waste residue treatment equipment extrudes the neutralized wet circuit board waste residue through the rolling device to remove most of water, the extruded circuit board waste residue automatically falls into the moving grid, and the circuit board waste residue is automatically pushed into the centrifugal crushing device after the moving grid finishes filtering and drying, so that the circuit board waste residue becomes dry film particles. The devices are tightly connected, the operation is easy, and the waste residue treatment efficiency of the circuit board is effectively improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic structural diagram of a circuit board waste residue treatment apparatus in an embodiment;
FIG. 2 is a schematic structural diagram of an acid solution spraying device in the circuit board waste residue treatment equipment shown in FIG. 1;
fig. 3 is a schematic structural view of a centrifugal pulverizing device in the circuit board waste residue treatment apparatus shown in fig. 1.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The invention provides a circuit board waste residue treatment device which comprises an acid liquor spraying device, a rolling device, a movable grid and a centrifugal crushing device. The acid liquor spraying device comprises an acid liquor box, a pressurizing piece and a spraying piece, wherein the pressurizing piece is connected to the acid liquor box, an acid liquor groove is formed in the acid liquor box, the pressurizing piece is communicated with the acid liquor groove, the pressurizing piece is used for pressurizing acid liquor, the spraying piece is connected to the pressurizing piece, and the spraying piece is communicated with the pressurizing piece; the rolling device comprises at least two oppositely arranged press wheels, and each press wheel is arranged at a position corresponding to the spraying piece; the movable grid comprises a filtrate part and a drying part, the filtrate part is arranged at a position corresponding to the pressing wheel, and the drying part is connected with the filtrate part; centrifugal reducing mechanism has seted up feeder hopper, centrifugal rubbing crusher and ejection of compact portion, the feed inlet has been seted up to the feeder hopper, centrifugal rubbing crusher has seted up the centrifugal crushing chamber, first discharge gate has been seted up to ejection of compact portion, the feed inlet passes through the centrifugal crushing chamber with first discharge gate intercommunication, the feed inlet set up in the drying part is kept away from the position that the one end of filtrate portion corresponds.
According to the circuit board waste residue treatment equipment, the acid liquor spraying device can uniformly spray the acid liquor into the circuit board waste residue, so that strong alkalinity of the circuit board waste residue is fully neutralized, and subsequent treatment of the circuit board waste residue and waste liquor is facilitated. Because the solution in the circuit board waste residue is extruded out by the rolling device through the extrusion between the pinch rollers, then the solution is filtered and dried in sequence by the filtrate part and the drying part of the movable grid, most of the solution is removed by the circuit board waste residue through the extrusion of the rolling device, and the drying part is matched to perform drying operation, so that the circuit board waste residue achieves better drying effect, and the water content of the circuit board waste residue is lower than 3%. After the drying operation is finished, the dried circuit board waste residue is pushed into the centrifugal smashing device, so that the circuit board waste residue becomes dry film particles, a better weight reduction effect and a dehydration effect are achieved, the quality of the circuit board waste residue is reduced, the processing of the circuit board waste residue is facilitated, and the processing cost is greatly reduced. Further, extrude the wet circuit board waste residue that will neutralize through the roll-in device, get rid of most moisture, the circuit board waste residue after the extrusion falls into automatically and removes the net, accomplishes the filtration and dries the back at removing the net, pushes centrifugal reducing mechanism automatically in, makes the circuit board waste residue become dry film particle of drying. The devices are tightly connected, the operation is easy, and the waste residue treatment efficiency of the circuit board is effectively improved.
For better understanding of the circuit board waste residue treatment apparatus 10 of the present invention, the circuit board waste residue treatment apparatus 10 of the present invention is further explained below, and refer to fig. 1, which is a schematic diagram of the circuit board waste residue treatment apparatus 10 according to an embodiment of the present invention.
Referring to fig. 2 and 3, the circuit board waste residue treatment apparatus 10 of an embodiment includes an acid solution spraying device 100, a rolling device 200, a moving grid 300, and a centrifugal crushing device 400. The acid liquor spraying device 100 comprises an acid liquor tank 110, a pressurizing part 120 and a spraying part 130, wherein the pressurizing part 120 is connected to the acid liquor tank 110, an acid liquor tank 112 is formed in the acid liquor tank 110, the pressurizing part 120 is communicated with the acid liquor tank 112, the pressurizing part 120 is used for pressurizing acid liquor, the spraying part 130 is connected to the pressurizing part 120, and the spraying part 130 is communicated with the pressurizing part 120; the rolling device 200 comprises at least two oppositely arranged press wheels 210, and each press wheel 210 is arranged at a position corresponding to the spraying piece 130; the movable grid 300 comprises a filtrate part 310 and a drying part 320, wherein the filtrate part 310 is arranged at a position corresponding to the pressing wheel 310, and the drying part 320 is connected with the filtrate part 310; centrifugal crushing device 400 has seted up feeder hopper 410, centrifugal crushing mechanism 420 and ejection of compact portion 430, and feed inlet 412 has been seted up to the feeder hopper, and centrifugal crushing mechanism 420 has seted up the centrifugal crushing chamber, and ejection of compact portion 430 has seted up first discharge gate 432, and feed inlet 412 communicates with first discharge gate 432 through the centrifugal crushing chamber, and feed inlet 412 sets up in the position that the one end that the filtrate portion 310 was kept away from to drying portion 320 corresponds.
In the present embodiment, the circuit board waste residue treatment apparatus 10 includes an acid solution spray device 100, a rolling device 200, a moving grid 300, and a centrifugal pulverizing device 400. The acid liquor spraying device 100 comprises an acid liquor tank 110, a pressurizing part 120 and a spraying part 130, wherein the pressurizing part 120 is connected to the acid liquor tank 110, an acid liquor tank 112 is formed in the acid liquor tank 110, the pressurizing part 120 is communicated with the acid liquor tank 112, acid liquor in the acid liquor tank 112 can flow into the pressurizing part 120, and the pressurizing part 120 pressurizes the acid liquor, so that spraying power is provided for the acid liquor, and then the spraying part 130 arranged on the pressurizing part 120 sprays the acid liquor into circuit board waste residues, so that the acid liquor and the circuit board waste residues are neutralized. It is understood that organic dry films and wet films are mainly used as plating resist or etching resist in the production of printed circuit boards. When the electroplating is finished or after the etching is finished, the organic film resist is generally removed by using NaOH solution, and waste residues such as developing ink residues, film-removing ink residues, developing dry circuit board waste residues and film-removing dry circuit board waste residues are generated. Therefore, the circuit board waste residue generated after the dry film is removed is strongly alkaline, and needs an acid solution for neutralization. It should be noted that the acidic solution used in the present application is a microetching solution recovered from copper, and a waste liquid of the microetching solution is generated in the etching process of the circuit board, and the microetching solution waste liquid is generally treated by discharging the microetching solution waste liquid into a wastewater tank for centralized treatment.
Further, the rolling device 200 includes at least two oppositely disposed pressing wheels 210, and each pressing wheel 210 is disposed at a corresponding position of the spray 130. Furthermore, each pressing wheel 210 is arranged at a position corresponding to the spraying part 130, after the circuit board waste residue is neutralized with acid liquor by the spraying device, the neutralized circuit board waste residue falls into the rolling device 200 at the position corresponding to the spraying device, and most of the solution in the circuit board waste residue can be removed by extruding the neutralized circuit board waste residue through the two opposite pressing wheels 210. The circuit board waste residues extruded by the pressing wheel 210 continuously fall into the movable grid 300 arranged at the corresponding position of the pressing wheel 210, the movable grid 300 comprises a filtrate part 310 and a drying part 320, the filtrate part 310 is arranged at the corresponding position of the pressing wheel 210, further, the filtrate part 310 is arranged at the corresponding position of the pressing wheel 210, and the drying part 320 is connected with the filtrate part 310. The filtrate part 310 is used for further filtering the solution contained in the circuit board waste residue after being pressed by the pressing wheel 210, and simultaneously, the water pressed in the rolling device 200 is filtered into the waste water tank through the filtrate part 310. It can be understood that the moving grid 300 is equivalent to a grid conveyor belt, and can perform reciprocating uniform motion, the circuit board waste residue filtered by the filtering liquid part 310 moves from the filtering liquid part 310 to the drying part 320 along with the motion of the moving grid 300, and the drying operation is performed on the circuit board waste residue in the drying part 320, so as to remove the residual moisture in the circuit board waste residue. It should be noted that, the drying unit 320 includes a mesh conveyor belt disposed on the surface and an electric heating element disposed inside the mesh conveyor belt, and the electric heating element can perform electric heating by connecting with a motor to dry the circuit board waste residue, remove the residual moisture in the circuit board waste residue, and achieve a better dewatering effect.
As shown in fig. 1 and fig. 3, the centrifugal crusher 400 further includes a feeding hopper 410, a centrifugal crushing mechanism 420, and a discharging portion 430, the feeding hopper includes a feeding opening 412, the centrifugal crushing mechanism 420 includes a centrifugal crushing cavity, the discharging portion 430 includes a first discharging opening 432, the feeding opening 412 is communicated with the first discharging opening 432 through the centrifugal crushing cavity, and the feeding opening 412 is disposed at a position corresponding to an end of the drying portion 320 far away from the filtrate portion 310. It can be understood that after the drying operation of the drying part 320, the circuit board waste residue moves with the movement of the moving grid 300, and finally falls into the feeding hole 412 disposed at a corresponding position of the drying part 320 far from the filtrate part 310, the centrifugal crushing mechanism 420 is communicated with the feeding hole 412, and the circuit board waste residue enters the centrifugal crushing mechanism 420 through the feeding hole 412. It can be understood that centrifugal crushing mechanism 420 includes the casing cover, driving motor, main shaft and crushing blade, the main shaft is installed on the casing cover, crushing blade locates on the main shaft, driving motor fixed mounting is on the casing cover, driving motor's output and main shaft fixed connection, the main shaft is the hollow shaft, crushing blade is the helix form and arranges on the main shaft, driving motor's direction of rotation is the same with the helix that crushing blade arranged, crushing blade not only can be with comminuted when rotatory, can also produce propulsive force, with kibbling material by feed inlet 412 propelling movement to the discharge gate, make the inside of whole machine keep clean. In addition, the dried circuit board waste residue is processed by the centrifugal crushing mechanism 420 to finally obtain dry particles in a fine sand state, so that the quality of the circuit board waste residue is reduced, a better weight reduction effect is achieved, the processing of the circuit board waste residue is facilitated, and the processing cost is greatly reduced. And because the circuit board waste residue is subjected to neutralization operation of the acid liquor spraying device 100, the obtained circuit board waste residue particles are neutral, the pH value is 7.5-8.0, so that the circuit board waste residue particles cannot generate waste gas with pollution property during combustion treatment, and the environment friendliness is good.
As shown in fig. 1, in order to facilitate the spraying part 130 to perform the spraying treatment on the circuit board waste residue and improve the spraying efficiency, in one embodiment, the circuit board waste residue treatment equipment 10 further includes a feeding device 500, and the feeding device 500 is disposed at a position corresponding to the spraying part 130. In this embodiment, the circuit board waste residue treatment equipment 10 is further provided with a feeding device 500, the feeding device 500 is located above the spraying part 130, and the circuit board waste residue can be automatically sent to the spraying area of the acid liquor spraying device 100 through the feeding device 500, so that the circuit board waste residue can be conveniently sprayed by the spraying part 130, manual operation is reduced, and the spraying treatment efficiency is improved.
As shown in fig. 1 and fig. 2, in order to make the acid solution spraying device 100 perform more sufficient neutralization treatment on the circuit board waste residue, so as to achieve better neutralization effect, in one embodiment, the acid solution tank 112 includes a first acid solution tank 1120 and a second acid solution tank 1140, and the acid solution tank of the first acid solution tank 1120 and the acid solution tank of the second acid solution tank 1140 are respectively opened at two sides of the feeding device 500. In this embodiment, the acid solution tank 110 includes a first acid solution tank 1120 and a second acid solution tank 1140, so as to facilitate the acid solution spraying device 100 to spray the circuit board waste residues from two different angles, and the first acid solution tank 1120 and the second acid solution tank 1140 are respectively disposed at two sides of the feeding device 500, so that the spraying region can be more completely covered in the circuit board waste residues, and thus the acid solution spraying device 100 can more fully neutralize the circuit board waste residues, and achieve a better neutralizing effect.
Further, the pressing member 120 includes a first pressing member 1220 and a second pressing member 1240, the first pressing member 1220 is connected to one end of the first acid solution tank 1120, and the second pressing member 1240 is connected to one end of the second acid solution tank 1140. It will be appreciated that the pressure member 120 acts to pressurize the acid in the acid tank 110 to provide a motive force for spraying the acid. In this embodiment, the pressing member 120 includes a first pressing member 1220 and a second pressing member 1240, the first pressing member 1220 is connected to one end of the first acid tank 1120, the second pressing member 1240 is connected to one end of the second acid tank 1140, the first pressing member 1220 can press the acid solution in the first acid tank 1120 so as to provide a spraying power for the acid solution in the first acid tank 1120, and the second pressing member 1240 can press the acid solution in the second acid tank 1140 so as to provide a spraying power for the acid solution in the second acid tank 1140. The first pressurizing part 1220 and the second pressurizing part 1240 respectively provide spraying power for the first acid liquid tank 1120 and the second acid liquid tank 1140, so that the acid liquid spraying device 100 can conveniently spray and neutralize the circuit board waste residues from two sides of the feeding device 500, and the circuit board waste residues are more sufficiently neutralized.
Further, the spray member 130 includes a first spray member 1320 and a second spray member 1340, the first spray member 1320 is disposed on the first pressing member 1220, and the second spray member 1340 is disposed on the second pressing member 1240. It can be understood that the spraying member 130 provided on the pressing member 120 can uniformly spray the acid solution into the circuit board waste, so that both the acid solution and the circuit board waste are neutralized. In this embodiment, the spray member 130 includes a first spray member 1320 and a second spray member 1340, the first spray member 1320 is disposed on the first pressing member 1220, and the second spray member 1340 is disposed on the second pressing member 1240. The first spraying part 1320 can spray the acid solution in the first acid solution tank 1120 onto the circuit board waste residue from one side of the feeding device 500, the second spraying part 1340 can spray the acid solution in the second acid solution tank 1140 onto the circuit board waste residue from the other side of the feeding device 500, and the first acid solution tank 1120 and the second acid solution tank 1140 are respectively arranged on two sides of the feeding device 500, so that the spraying region can be more completely covered into the circuit board waste residue. Therefore, the acid liquor can be fully and uniformly sprayed onto the circuit board waste residue through the first spraying piece 1320 and the second spraying piece 1340, so that the circuit board waste residue and the acid liquor can be fully neutralized, the circuit board waste residue and the waste liquor are neutral, the subsequent treatment of the circuit board waste residue and the waste liquor is facilitated, and the environmental pollution is avoided.
In one embodiment, rolling device 200 includes two oppositely disposed press wheels 210. It can be understood that, after the circuit board waste residue is neutralized with the acid solution by the acid solution spraying device 100, the neutralized circuit board waste residue falls into the rolling device 200 located at the corresponding position of the acid solution spraying device 100, and the neutralized circuit board waste residue is extruded by the two oppositely arranged press wheels 210, so that most of the solution in the circuit board waste residue can be removed, and a better dehydration effect is achieved.
In one embodiment, the first spray member 1320 is disposed corresponding to one of the pinch rollers 210, the second spray member 1340 is disposed corresponding to the other pinch roller 210, and the spray openings of the first spray member 1320 and the second spray member 1340 are disposed corresponding to the space between the two pinch rollers 210. It can be understood that, after the circuit board waste residue passes through the acid solution spraying device 100 and is neutralized with the acid solution, the neutralized circuit board waste residue falls into the rolling device 200 located at the corresponding position of the acid solution spraying device 100. Through the first spray part 1320 and one of them pinch roller 210 corresponding setting, the second sprays the piece 1340 and corresponds the setting with another pinch roller 210, and the mouth that sprays of first spray part 1320 and the mouth that sprays of second spray part 1340 all correspond and set up between two pinch rollers 210, makes the circuit board waste residue after spraying can fall into accurately and carry out the extrusion operation between two pinch rollers 210 to reach better dehydration effect.
As shown in fig. 1, in one embodiment, the feeding device 500 includes a feeding hopper 510, the feeding hopper 510 is opened with a second discharging port 512, and the second discharging port 512 is located at a corresponding position between the first spraying member 1320 and the second spraying member 1340. It can be understood that the feeding device 500 is located above the spraying part 130, and the circuit board waste residue can be automatically sent to the spraying area of the acid liquor spraying device 100 through the feeding device 500, so that the circuit board waste residue can be conveniently sprayed by the spraying part 130, manual operation is reduced, and the spraying treatment efficiency is improved. In this embodiment, the feeding device 500 includes a feeding hopper 510, the feeding hopper 510 has a second discharging port 512, the second discharging port 512 is located at a position corresponding to the first spraying part 1320 and the second spraying part 1340, the volume of the feeding hopper 510 is much larger than that of the second discharging port 512, and the feeding hopper 510 is mainly used for pre-storing wet circuit board waste residues to be processed, so as to ensure the working continuity of the circuit board waste residue processing equipment 10 and improve the processing efficiency of the circuit board waste residues. Second discharge gate 512 and feeding funnel 510 intercommunication setting and have fixed shape, mainly used are to the design of the wet circuit board waste residue of pending in feeding funnel 510 and handle, and make loading attachment 500's ejection of compact more even to conveniently spray piece 130 and spray the processing to the circuit board waste residue, improve and spray the treatment effeciency. Further, the second discharge hole 512 is located right above the first spraying part 1320 and the second spraying part 1340, so that the circuit board waste residue can be sprayed by more sufficient acid liquor in the acid liquor spraying device 100, a better neutralization effect is achieved, the circuit board waste residue and the circuit board waste liquor are neutral, subsequent treatment of the circuit board waste residue and the circuit board waste liquor is facilitated, and pollution to the environment is avoided.
In order to effectively control the discharge amount of the circuit board waste residue, so as to achieve a better neutralization effect of the circuit board waste residue and the acid solution, in one embodiment, the second discharge hole 512 is flat. It can be understood that the second discharge hole 512 is flat, so that the discharge amount of the circuit board waste residue can be effectively controlled, and the acid liquor spraying device 100 can fully spray the circuit board waste residue conveniently. And the thickness of the flat circuit board waste residue is smaller, which is beneficial to the permeation of the sprayed acid solution, so that the circuit board waste residue and the acid solution achieve better neutralization effect.
Further, the discharge end of the feeding hopper 510 is respectively provided with a first flat surface and a second flat surface, the first flat surface and the second flat surface are arranged in parallel to form a flat second discharge port 512, the first flat surface faces the first spraying member 1320, and the second flat surface faces the second spraying member 1340. It can be understood that the second discharge hole 512 is flat, and the circuit board waste residue discharged through the second discharge hole 512 has the shape of the first flat surface and the shape of the second flat surface, so that the circuit board waste residue is integrally sheet-shaped. In this embodiment, the first flat surface of the second discharging hole faces the first spraying member 1320, and the second flat surface faces the second spraying member 1340, so that the acid solution of the first spraying member 1320 is fully and uniformly sprayed to one flat surface of the circuit board waste residue, and the acid solution of the second spraying member 1340 is fully and uniformly sprayed to the other flat surface of the circuit board waste residue, so that the entire outer surface of the circuit board waste residue is fully and uniformly subjected to a neutralization reaction with the acid solution. In addition, the circuit board waste residue is wholly flaky, and thickness is less, can guarantee to spray and fully permeate to whole flaky circuit board waste residue with the acidizing fluid of circuit board waste residue surface evenly, reaches better neutralization effect, makes circuit board waste residue and waste liquid be neutral, and the follow-up processing to circuit board waste residue and waste liquid of being convenient for avoids causing the pollution to the environment.
As shown in fig. 1, in order to effectively remove most of the solution in the circuit board waste residue, and achieve a better weight reduction effect, in one embodiment, the gap between the two pressing wheels 210 just corresponds to the second discharge hole 512, and the projections of the second discharge hole 512 facing the space between the two pressing wheels 210 are at least partially located on the two pressing wheels 210 respectively. It can be understood that the second discharge port is located above the two pressing wheels, after the circuit board waste residue discharged from the second discharge port 512 is neutralized with the acid solution by the spraying device, the neutralized circuit board waste residue falls into the rolling device 200 located at the corresponding position of the spraying device, and most of the solution in the circuit board waste residue can be removed by extruding the neutralized circuit board waste residue through the two opposite pressing wheels 210. In this embodiment, the gap between the two pressing wheels 210 just corresponds to the second discharge hole 512, and the projection of the second discharge hole 512 toward the space between the two pressing wheels 210 is at least partially located on the two pressing wheels 210, that is, the gap between the two oppositely arranged pressing wheels 210 in the rolling device 200 is smaller than the thickness of the circuit board waste residue after the acid liquor spraying, so the neutralized circuit board waste residue can be effectively extruded through the two oppositely arranged pressing wheels 210, and then most of the solution in the circuit board waste residue is removed, thereby achieving better weight reduction effect and dehydration effect.
As shown in fig. 1, in one embodiment, the circuit board waste residue treatment apparatus 10 further includes a waste liquid collection tank 600, and the waste liquid collection tank 600 is disposed below the filtrate part 310. It is understood that after the sprayed circuit board waste is extruded in the rolling device 200, the solution extruded from the circuit board waste falls into the filtrate part 310 of the moving mesh 300. In this embodiment, the circuit board waste residue treatment equipment 10 further includes a waste liquid collecting box 600, the waste liquid collecting box 600 is disposed below the filtrate portion 310, and the solution extruded from the circuit board waste residue is thrown into the grid of the filtrate portion 310 into the waste liquid collecting box 600, so as to be beneficial to subsequent centralized treatment of the waste liquid, and the waste liquid is neutral after reaction with the circuit board waste residue, and has a pH value of 7.5-8.0, so as to be beneficial to treatment of a waste water station, and improve the environmental protection property of the waste liquid.
In one embodiment, the circuit board waste residue processing apparatus 10 according to any of the above embodiments adopts a circuit board waste residue processing method to process circuit board waste residues. In one embodiment, the circuit board waste residue treatment method comprises the following steps of:
s100, spraying acid liquor into the circuit board waste residues to enable the circuit board waste residues and the acid liquor to perform neutralization reaction to obtain circuit board neutralization waste residues.
It is understood that organic dry films and wet films are mainly used as plating resist or etching resist in the production of printed circuit boards. When the electroplating is finished or after the etching is finished, the organic film resist is generally removed by using NaOH solution, and waste residues such as developing ink residues, film-removing ink residues, developing dry film residues and film-removing dry film residues are generated. Therefore, the film residue generated after the dry film is removed is strongly alkaline, and needs an acidic solution for neutralization. In this embodiment, the acid solution spraying device is used to spray the acid solution into the circuit board waste residue, and the acid solution spraying device includes two spraying parts respectively disposed on two sides of the circuit board waste residue, so that the spraying area can be more completely covered into the film residue. Therefore, the acid liquor is more fully and uniformly sprayed into the circuit board waste residues, and a better neutralization effect is achieved. After the circuit board waste residue and the acid liquor are subjected to neutralization reaction, the circuit board waste residue and the acid liquor waste liquid are neutral, so that the circuit board waste residue and the acid liquor waste liquid can be treated subsequently, the pollution to the environment is avoided, and the environment friendliness is better.
And S200, extruding the neutralized waste residues of the circuit board by using a rolling device to obtain the extruded waste residues of the circuit board.
It can be understood that the circuit board neutralized waste residue with high water content is obtained after the circuit board neutralized waste residue and the acid solution are subjected to neutralization reaction. In this embodiment, the circuit board neutralization waste is subjected to a pressing operation using a roller press device to remove moisture from the circuit board neutralization waste. It should be noted that the rolling device includes at least two oppositely arranged pinch rollers, and the pinch rollers are both arranged below the spraying piece. After the circuit board waste residues are neutralized with acid liquor by the acid liquor spraying device, the neutralized circuit board film residues fall into the rolling device below the acid liquor spraying device, and most of water in the film residues can be removed by extruding the neutralized circuit board waste residues through the two oppositely arranged press wheels.
And S300, performing filtering operation on the circuit board extrusion waste residues through the filtering part of the movable grid.
In this embodiment, the membrane sediment after the pinch roller extrusion continues to fall into the removal net that sets up under the pinch roller, and the removal net includes filtrating portion and stoving portion, and filtrating portion sets up under the pinch roller, and the stoving portion is connected with filtrating portion. The filter liquor portion is used for further filtering the solution contained in the membrane slag after being extruded by the pressing wheel, and meanwhile, the water extruded out of the rolling device is filtered into the wastewater tank through the filter liquor portion, so that the wastewater is conveniently subjected to centralized treatment, and the environmental protection of wastewater treatment is improved.
S400, drying the circuit board extrusion waste residue after the filtrate operation by the drying part of the movable grid to obtain the circuit board drying waste residue.
It can be understood that the moving grid is equivalent to a grid conveyor belt and can do reciprocating uniform motion, the membrane slag filtered by the filtering part moves to the drying part from the filtering part along with the motion of the moving grid, and the drying operation is conducted on the membrane slag in the drying part so as to remove residual moisture in the membrane slag. It should be noted that, the stoving portion is including setting up the net conveyer belt on the surface and setting up the electric heating element in inside, and electric heating element can carry out the electricity through connecting the motor and generate heat to carry out the stoving operation to the membrane sediment, get rid of remaining moisture in the membrane sediment, reach better dehydration effect.
And S500, carrying out centrifugal crushing treatment operation on the dried circuit board drying waste residues by using a centrifugal crushing device to obtain circuit board waste residue particles.
In this embodiment, centrifugal grinding device includes feed inlet, centrifugal rubbing crusher constructs and first discharge gate, and the feed inlet sets up under the one end that the filtrating portion was kept away from to the drying portion, and centrifugal rubbing crusher constructs and is connected with the feed inlet, and first discharge gate is connected with centrifugal rubbing crusher constructs. It can be understood that after the drying operation is completed in the drying part, the circuit board waste residue continues to move along with the movement of the moving grid, finally falls into the feed port arranged right below one end, far away from the filtrate part, of the drying part, the centrifugal crushing mechanism is connected with the feed port, and the circuit board waste residue enters the centrifugal crushing mechanism through the feed port. It can be understood that, centrifugal rubbing crusher constructs including the casing cover, driving motor, main shaft and crushing blade, the main shaft is installed on the casing cover, crushing blade locates on the main shaft, driving motor fixed mounting covers at the casing, driving motor's output and main shaft fixed connection, the main shaft is the hollow shaft, crushing blade is the helix form and arranges on the main shaft, driving motor's the direction of rotation is the same with the helix that crushing blade arranged soon, crushing blade not only can be with comminuted when rotatory, can also produce propulsive force, with kibbling material by feed inlet propelling movement to discharge gate, make the inside of whole machine keep clean. In addition, the dried circuit board waste residue is treated by the centrifugal crushing mechanism to finally obtain dry particles in a fine sand state, so that the quality of the circuit board waste residue is reduced, a better weight reduction effect is achieved, the treatment of the circuit board waste residue is facilitated, and the treatment cost is greatly reduced. And because the circuit board waste residue is subjected to neutralization operation of the acid liquor spraying device, the obtained circuit board waste residue particles are neutral, the pH value is 7.5-8.0, so that the circuit board waste residue particles can not generate waste gas with pollution property during combustion treatment, and the environment friendliness is good.
In order to simultaneously treat the waste liquid of the microetching liquid and the waste residue of the circuit board and save the treatment cost, in one embodiment, the acid liquid is the microetching liquid waste liquid obtained by recovering copper. It is understood that organic dry films and wet films are mainly used as plating resist or etching resist in the production of printed circuit boards. When the electroplating is finished or after the etching is finished, the organic film resist is generally removed by using NaOH solution, and waste residues such as developing ink residues, film-removing ink residues, developing dry film residues and film-removing dry film residues are generated. Therefore, the film residue generated after the dry film is removed is strongly alkaline, and needs an acidic solution for neutralization. In the embodiment, the adopted acid solution is the microetching solution recovered by copper, waste liquid of the microetching solution is generated in the etching process of the circuit board, the microetching solution waste liquid is generally treated by being discharged into a waste water tank for centralized treatment, and the microetching solution waste liquid is recovered by arranging a storage tank in the application, then the microetching solution waste liquid is put into an acid liquid tank in the circuit board waste residue treatment equipment 10, and the microetching solution waste liquid is sprayed into the film residues by a spraying piece, so that the microetching solution waste liquid and the film residues are both neutralized, thereby realizing the treatment of the microetching solution waste liquid and the film residues at the same time, and saving a large amount of treatment cost.
In order to improve the environmental protection of the circuit board waste residues and the treatment efficiency of the circuit board film residues, in one embodiment, the spraying speed of the acid solution is 1L/min-3L/min. It can be understood that when the spraying speed of the acid solution is too low, the amount of the acid solution which reacts with the circuit board waste residue is easily insufficient, so that the reaction of the circuit board waste residue and the acid solution is insufficient, the pH value of the circuit board waste residue is caused to be higher, and the environment is easily polluted during subsequent treatment of the circuit board waste residue. The spraying speed of the acid liquor is too high, and the spraying pressure of the acid liquor on the circuit board waste residues is also higher, so that the acid liquor is easy to disperse the circuit board film residues in the spraying process, and the full reaction of the acid liquor and the circuit board waste residues is not facilitated. In addition, the excessive spraying speed of the acid solution easily causes the excessive acid solution amount in the circuit board waste residue, and causes the pH value of the circuit board waste residue to be low, thereby easily causing environmental pollution in the subsequent treatment of the circuit board waste residue. In the embodiment, the spraying speed of the acid solution is 1L/min-3L/min, and through experimental detection, in the embodiment, the spraying speed of the acid solution is within 1L/min-3L/min, so that sufficient neutralization reaction between the acid solution and the circuit board waste residue can be ensured, a good neutralization effect can be achieved, the pH value of the circuit board waste residue can reach 7.5-8.0, the pollution to the environment when the circuit board waste residue is treated can be avoided, and the environmental friendliness can be improved. Meanwhile, the spraying speed is 1L/min-3L/min, the neutralization reaction efficiency of the circuit board waste residues and the acid liquor can be effectively improved, and the treatment efficiency of the circuit board waste residues is further improved.
In order to ensure that the rolling device achieves a better dehydration effect on the circuit board waste residue and improve the environmental protection and safety of the circuit board waste residue treatment, in one embodiment, the rolling speed of the rolling device is 3 m/min-6 m/min. It can be understood that if the rolling speed of the rolling device is too low, circuit board waste residues are easy to adhere to the surface of the pressing wheel, thereby affecting the operation of the rolling device. If the rolling speed of the rolling device is too high, the solution of the circuit board film slag is easy to splash in the rolling process, so that the operation environment is adversely affected, and the extruded waste liquid is inconvenient to collect. In the embodiment, the rolling speed of the rolling device is 3-6 m/min, so that the rolling device can achieve a good dehydration effect on the circuit board waste residues, and the circuit board waste residues cannot be adhered to the surface of the pressing wheel in the rolling process, so that the treatment efficiency of the circuit board waste residues is improved. Meanwhile, the extruded waste liquid is convenient to collect, and the environmental protection and safety of the circuit board waste residue treatment are improved.
In order to increase the weight reduction rate of the circuit board waste residue, in one embodiment, the temperature of the drying operation is 75-85 ℃. It can be understood that if the temperature of the drying operation is too low, the remaining moisture in the circuit board waste residue cannot be removed well, so that the weight reduction rate of the circuit board waste residue is low, the processing of the circuit board waste residue is not facilitated, and the processing cost is increased easily. If the temperature of the drying operation is too high, the waste residue of the circuit board is easy to cause coking or fire, thereby generating a safety problem. In the embodiment, the drying temperature is 75-85 ℃, and experimental detection shows that residual moisture in the circuit board waste residue can be effectively removed at the drying temperature of 75-85 ℃, so that a good weight reduction effect is achieved, and the operation safety can be ensured.
Further, the time of the drying operation is 1 hour to 1.5 hours. It can be understood that if the time of the baking operation is too short, the residual moisture in the circuit board waste residue cannot be removed well, so that the weight reduction rate of the circuit board waste residue is low, the processing of the circuit board waste residue is not facilitated, and the processing cost is increased easily. If the baking operation is carried out for too long, the waste residues of the circuit board are easy to cause coking or fire, thereby generating a safety problem. In this embodiment, the drying operation time is 1 hour to 1.5 hours, and experimental detection shows that the drying operation time is 1 hour to 1.5 hours at a temperature of 75 ℃ to 85 ℃, so that the residual moisture in the circuit board waste residue can be removed more effectively, and the weight reduction rate of the circuit board waste residue is improved.
In one embodiment, before the step of spraying the acid solution to the circuit board waste residue, the circuit board waste residue treatment method further includes: and conveying the circuit board waste residues to an acid liquor spraying device by using a feeding device so as to control the discharge amount of the circuit board waste residues and match the spraying speed of the spraying device. In this embodiment, the discharge end of the feeding device is flat, and the flat feeding device is used to convey the circuit board waste residue to the acid solution spraying device for acid solution spraying operation, so that the discharge amount of the circuit board waste residue can be effectively controlled, and the spraying speed of the spraying device is matched, thereby facilitating the acid solution spraying device to fully spray the film residue. And the thickness of the circuit board waste residue discharged from the flat feeding device is smaller, so that the spraying acid solution can permeate the circuit board waste residue, and the circuit board waste residue and the acid solution can achieve a better neutralization effect.
In one embodiment, the moving speed of the moving grid is 2m/min to 4 m/min. It can be understood that the moving grid is equivalent to a grid conveyor belt and can reciprocate at a uniform speed, circuit board waste residues filtered by the filtering part move to the drying part from the filtering part along with the movement of the moving grid, and the circuit board waste residues are dried by the drying part to remove residual moisture in the film residues. When the circuit board waste residue moves to the stoving portion along with moving the network, can make at any time and stop moving the net to conveniently fully toast the circuit board waste residue, after accomplishing the operation of toasting, continue to start moving the net, carry the circuit board waste residue that will toast and carry out centrifugal crushing operation to centrifugal reducing mechanism. In addition, the solution produced in the rolling process directly falls into the moving grid and is filtered into the wastewater tank through the filtrate part of the moving grid. In the embodiment, the moving speed of the moving grid is 2 m/min-4 m/min, the processing speed of the rolling device on the circuit board waste residue can be effectively matched, the solution generated in the rolling process is prevented from falling on the rolled circuit board waste residue, the circuit board waste residue achieves a better dehydration effect, and meanwhile, the processing efficiency of the circuit board waste residue can be improved.
In one embodiment, the rotation speed of the centrifugal crushing device is 3000 r/min-4000 r/min. It can be understood that if the rotating speed of the centrifugal crushing device is too low, the centrifugal crushing device can easily crush the circuit board waste residue incompletely or the uniformity is poor, and a good crushing effect can not be achieved, so that the subsequent treatment of the circuit board waste residue particles is not facilitated. If the rotation speed of the centrifugal grinding device is too high, the temperature of the device is easily too high and the device is easily worn excessively. In the embodiment, the rotating speed of the centrifugal crushing device is 3000 r/min-4000 r/min, and through experimental detection, when the rotating speed is 3000 r/min-4000 r/min, uniform and dry fine sand-shaped circuit board waste residue particles can be obtained, so that the quality of the circuit board waste residue particles is effectively reduced, and a better weight reduction effect is achieved. And meanwhile, the waste residues of the circuit board can be conveniently treated, and the treatment cost is greatly reduced.
In one embodiment, the comminution blades of the centrifugal comminution apparatus are detachably arranged on the main shaft of the centrifugal comminution apparatus. It should be noted that, centrifugal rubbing crusher constructs including the casing cover, driving motor, main shaft and crushing blade, the main shaft is installed on the casing cover, crushing blade locates on the main shaft, driving motor fixed mounting is covered at the casing, driving motor's output and main shaft fixed connection, the main shaft is the hollow shaft, crushing blade is the helix form and arranges on the main shaft, driving motor's direction of rotation and the helix that crushing blade arranged are the same to the direction of rotation, crushing blade not only can be with comminuted when rotatory, can also produce the propulsive force, with kibbling material by feed inlet propelling movement to discharge gate, make the inside of whole machine keep clean. In this embodiment, crushing blade detachably among the centrifugal reducing mechanism sets up on centrifugal reducing mechanism's main shaft, and through the quantity of control crushing blade, can control the crushing fineness of circuit board waste residue to guarantee to make circuit board waste residue smash into even fine sand form granule simultaneously with circuit board waste residue granule propelling movement to the ejection of compact, and then conveniently handle the circuit board waste residue, the treatment cost that significantly reduces.
Compared with the prior art, the invention has at least the following advantages:
1. because the acid liquor spraying device 100 can uniformly spray the acid liquor into the circuit board waste residues, the strong basicity of the circuit board waste residues is fully neutralized, and the subsequent treatment of the circuit board waste residues and waste liquor is facilitated. Because the rolling device 200 extrudes the water in the circuit board waste residue through the extrusion between the pressing wheels 210, then the filter part 310 and the drying part 320 of the movable grid 300 sequentially filter and dry, most of the solution in the circuit board waste residue is removed through the extrusion of the rolling device 200, and the drying part 320 is matched for drying operation, so that the circuit board waste residue achieves a better drying effect, and the water content of the circuit board waste residue is lower than 3%. After the completion of the drying operation, the dried circuit board waste residues are pushed into the centrifugal smashing device 400, so that the circuit board waste residues become dry film particles, a better weight reduction effect and a dehydration effect are achieved, the quality of the circuit board waste residues is reduced, the circuit board waste residues are convenient to treat, and the treatment cost is greatly reduced.
2. The circuit board waste residue treatment equipment 10 extrudes the neutralized wet circuit board waste residue through the rolling device 200 to remove most of water, the extruded circuit board waste residue automatically falls into the moving grid 300, and the circuit board waste residue is automatically pushed into the centrifugal crushing device 400 after the moving grid 300 is filtered and dried, so that the circuit board waste residue becomes dry film particles. The devices are tightly connected, the operation is easy, and the waste residue treatment efficiency of the circuit board is effectively improved.
The above examples only show some embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A circuit board waste residue treatment device is characterized by comprising
The acid liquor spraying device comprises an acid liquor box, a pressurizing piece and a spraying piece, wherein the pressurizing piece is connected to the acid liquor box, an acid liquor groove is formed in the acid liquor box, the pressurizing piece is communicated with the acid liquor groove, the pressurizing piece is used for pressurizing acid liquor, the spraying piece is connected to the pressurizing piece, and the spraying piece is communicated with the pressurizing piece;
the rolling device comprises at least two oppositely arranged press wheels, and each press wheel is arranged at a position corresponding to the spraying piece;
the movable grid comprises a filtrate part and a drying part, the filtrate part is arranged at a position corresponding to the pressing wheel, and the drying part is connected with the filtrate part;
centrifugal reducing mechanism, centrifugal reducing mechanism has seted up feeder hopper, centrifugal rubbing crusher and ejection of compact portion, the feed inlet has been seted up to the feeder hopper, centrifugal rubbing crusher has seted up the centrifugal crushing chamber, first discharge gate has been seted up to ejection of compact portion, the feed inlet passes through the centrifugal crushing chamber with first discharge gate intercommunication, the feed inlet set up in dry by the fire the dry part is kept away from the position that the one end of filtrate portion corresponds.
2. The circuit board waste residue treatment equipment according to claim 1, further comprising a feeding device, wherein the feeding device is arranged at a position corresponding to the spraying member.
3. The circuit board waste residue treatment equipment according to claim 2, wherein the acid liquid tank comprises a first acid liquid tank and a second acid liquid tank, and an acid liquid tank of the first acid liquid tank and an acid liquid tank of the second acid liquid tank are respectively arranged on two sides of the feeding device;
the pressurizing parts comprise a first pressurizing part and a second pressurizing part, the first pressurizing part is connected to the first acid liquid tank, the first pressurizing part is communicated with the first acid liquid tank, the second pressurizing part is connected to the second acid liquid tank, and the second pressurizing part is communicated with the second acid liquid tank;
the spraying part comprises a first spraying part and a second spraying part, the first spraying part is connected to the first pressurizing part, the first spraying part is communicated with the first pressurizing part, the second spraying part is connected to the second pressurizing part, and the second spraying part is communicated with the second pressurizing part.
4. The apparatus of claim 3, wherein the roller device comprises two rollers disposed opposite to each other.
5. The circuit board waste residue treatment equipment according to claim 4, wherein the first spraying part is arranged corresponding to one of the pinch rollers, the second spraying part is arranged corresponding to the other pinch roller, and the spraying port of the first spraying part and the spraying port of the second spraying part are arranged corresponding to the space between the two pinch rollers.
6. The circuit board waste residue treatment equipment according to claim 5, wherein the feeding device comprises a feeding hopper, a second discharging hole is formed in the feeding hopper, and the second discharging hole is located at a corresponding position between the first spraying piece and the second spraying piece.
7. The apparatus of claim 6, wherein the second discharge port is flat.
8. The circuit board waste residue treatment equipment according to claim 7, wherein a first flat surface and a second flat surface are respectively formed at a discharge end of the feeding hopper, the first flat surface and the second flat surface are arranged in parallel to form the second flat discharge port, the first flat surface faces the first spraying member, and the second flat surface faces the second spraying member.
9. The apparatus of claim 6, wherein a gap between the two pressing wheels corresponds to the second discharge hole, and a projection of the second discharge hole toward a position between the two pressing wheels is at least partially located on the two pressing wheels respectively.
10. The apparatus of claim 1, further comprising a waste liquid collection box disposed at a corresponding position of the filtrate part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011183337.2A CN112404099A (en) | 2020-10-29 | 2020-10-29 | Circuit board waste residue treatment equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011183337.2A CN112404099A (en) | 2020-10-29 | 2020-10-29 | Circuit board waste residue treatment equipment |
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| Publication Number | Publication Date |
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| CN112404099A true CN112404099A (en) | 2021-02-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011183337.2A Pending CN112404099A (en) | 2020-10-29 | 2020-10-29 | Circuit board waste residue treatment equipment |
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| CN (1) | CN112404099A (en) |
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Address after: 516300 Jinpaishan Mountain, Taiyang Depression, Baihua Town, Huidong County, Huizhou City, Guangdong Province Applicant after: Huizhou techuang Electronic Technology Co.,Ltd. Address before: Baihua town Taiyang Ao jinpaishan, Huidong County, Huizhou City, Guangdong Province Applicant before: HUIZHOU GLORYSKY ELECTRONICS TECHNOLOGY Co.,Ltd. |
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