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CN-117339963-B - Crushing device for recycling metal copper from scrap circuit board and copper-clad plate scraps and use method thereof

CN117339963BCN 117339963 BCN117339963 BCN 117339963BCN-117339963-B

Abstract

The invention discloses a crushing device for recycling metal copper from waste circuit boards and copper-clad plate leftover materials and a use method thereof, comprising a shell, wherein one side of the inside of the shell is provided with a conveying device, the other side of the inside of the shell is provided with a crushing mechanism, the device also comprises a cooling mechanism which is arranged at the upper end of the inside of the shell and consists of a blowing fan and an evaporator, the blowing fan is arranged in the inside of the shell, a first-stage crushing cavity which is arranged above the inside of the crushing mechanism, two sides of the inside of the first-stage crushing cavity are respectively provided with a crushing roller in a rotating way, one end of a rotating shaft of the crushing roller is fixedly provided with a transmission gear, a second-stage crushing cavity which is arranged below the first-stage crushing cavity, the inside of the first-stage crushing cavity is provided with a crushing extrusion plate, and the inclined surface of one side of the crushing extrusion plate and the lower wall of the first-stage crushing cavity are respectively provided with grinding teeth, so that the problem that copper waste is difficult to crush due to overhigh internal temperature of the crushing device in long-time use is solved.

Inventors

  • WANG XUEMING
  • CHEN YONGQI

Assignees

  • 苏州鑫达资源再生利用有限公司

Dates

Publication Date
20260505
Application Date
20231113

Claims (7)

  1. 1. The crushing device for recycling the metal copper from the scrap of the waste circuit board and the copper-clad plate comprises a shell (1), wherein a conveying device (2) is arranged on one side of the interior of the shell (1), a crushing mechanism (5) is arranged on the other side of the interior of the shell (1), and the discharge end of the conveying device (2) is positioned above the crushing mechanism (5); It is characterized in that the method also comprises the following steps: The cooling mechanism is arranged at the upper end of the interior of the shell (1), the cooling mechanism consists of an air supply fan (3) and an evaporator (17), the air supply fan (3) is arranged in the interior of the shell (1), and the evaporator (17) is fixed below the air supply fan (3); The first-stage crushing cavity (6) is arranged above the inside of the crushing mechanism (5), crushing rollers (7) are rotatably arranged on two sides of the inside of the first-stage crushing cavity (6), one end of a rotating shaft of each crushing roller (7) is fixedly provided with a transmission gear (19), and the transmission gears (19) are in meshed connection; The secondary crushing cavity (8) is arranged below the primary crushing cavity (6), a crushing extrusion plate (9) is arranged in the primary crushing cavity (6), grinding teeth (21) are arranged on the inclined surface of one side of the crushing extrusion plate (9) and the lower wall of the primary crushing cavity (6), a sliding rod (12) is fixedly arranged on the other side of the crushing extrusion plate (9), the sliding rod (12) extends to the outside of the crushing mechanism (5), and the sliding rod (12) and the crushing mechanism (5) are limited in a sliding manner; One side of the crushing mechanism (5) is fixedly provided with a driving motor (22), an output shaft of the driving motor (22) is fixedly provided with a driving gear (20), the driving gear (20) is meshed with a transmission gear (19), the front end of the driving gear (20) is fixedly provided with a driving wheel (15) through a connecting shaft, the lower part of the other side of the crushing mechanism (5) is fixedly provided with a rotating seat, the front end of the rotating seat is rotatably provided with a rotary table (14), the front end of the rotary table (14) is rotatably provided with a connecting rod (13), the other end of the connecting rod (13) is connected with a sliding rod (12) through a rotating shaft, the rear end of the rotary table (14) is provided with a driven wheel, and the driven wheel is connected with the driving wheel (15) through a belt (16); one side of shell (1) bottom is equipped with heat abstractor, heat abstractor includes compressor (26), one side of compressor (26) is provided with condenser (27), and condenser (27) are fixed mutually with shell (1), one side of condenser (27) is provided with choke valve (28), and is connected through medium conveyer pipe (29) between evaporator (17), compressor (26), condenser (27) and choke valve (28).
  2. 2. The crushing device for recycling metal copper from scrap circuit boards and copper-clad plates according to claim 1 is characterized in that a supporting plate where the crushing extrusion plate (9) is located is provided with a guide groove (11), the bottom of the crushing extrusion plate (9) is fixedly provided with a guide block (10), and the guide block (10) and the guide groove (11) are limited in a sliding mode.
  3. 3. The crushing device for recycling metal copper from scrap of waste circuit boards and copper-clad plates according to claim 1 is characterized in that a dust screen (4) is arranged outside the heat dissipation device, and the dust screen (4) is fixed with the shell (1) through screws.
  4. 4. The crushing device for recycling metal copper from waste circuit boards and copper-clad plate leftovers according to claim 1 is characterized in that a dust collection box (23) is arranged below the other side of the crushing mechanism (5), a negative pressure fan (24) is fixedly arranged on one side of the dust collection box (23), the upper end of the dust collection box (23) is connected with a dust collection pipe (25), and branch pipes on the side surfaces of the dust collection pipe (25) extend into a primary crushing cavity (6) and a secondary crushing cavity (8) respectively.
  5. 5. The crushing device for recycling metal copper from the scrap of the waste circuit board and the copper-clad plate according to claim 4, wherein purified water is arranged at the bottom of the dust collection box (23), and an air inlet of the negative pressure fan (24) is positioned above the purified water.
  6. 6. The crushing device for recycling metal copper from waste circuit boards and copper-clad plate scraps, as claimed in claim 1, is characterized in that a flotation reagent (18) is arranged in an inner cavity at the bottom of the crushing mechanism (5), and the flotation reagent (18) is sodium sulfide.
  7. 7. The use method of the crushing device for recycling metal copper based on the scrap circuit board and copper-clad plate leftover materials is characterized by comprising the following steps: Step one, placing waste circuit boards and copper-clad plate leftover materials on one side of a conveying device (2), conveying the waste circuit boards and the copper-clad plate leftover materials into a shell (1) in the conveying operation process, and moving towards the feeding port of a crushing mechanism (5); Step two, starting a compressor (26), compressing refrigerant in the compressor, enabling the compressed refrigerant to enter a condenser (27), throttling the condensed refrigerant through a throttle valve (28), enabling the throttled refrigerant to enter an evaporator (17), sucking the evaporated refrigerant through the compressor (26), reducing the pressure and the temperature, cooling ambient air, and transmitting low-temperature air to the surfaces of waste circuit boards and copper-clad plate leftover materials under the cooperation of an air supply fan (3), so that the temperature of the low-temperature air is reduced; Step three, waste circuit boards and copper-clad plate leftover materials enter a first-stage crushing cavity (6) preferentially, an output shaft of a driving motor (22) drives a driving gear (20) to rotate and drives two transmission gears (19) to rotate in opposite directions, so that the crushing rollers (7) are driven to rotate through the transmission gears (19), and the waste circuit boards and copper-clad plate leftover materials entering between the crushing rollers (7) can be crushed by crushing teeth; Step four, then entering a secondary crushing cavity (8) below, driving a gear (20) to rotate and simultaneously driving a driving wheel (15) to rotate, realizing rotation of a rotary table (14) under the transmission action of a belt (16), driving a crushing extrusion plate (9) to do telescopic reciprocating motion through a sliding rod (12) while a connecting rod (13) moves, and enabling crushed waste to fall on the inclined plane when the crushing extrusion plate (9) is separated from the secondary crushing cavity (8) each time, so that the upper wall of the secondary crushing cavity (8) is convenient to contact when the crushing extrusion plate (9) extends, and crushing the waste is further refined under friction with grinding teeth; And fifthly, enabling the crushed waste materials to enter a flotation reagent (18) for flotation.

Description

Crushing device for recycling metal copper from scrap circuit board and copper-clad plate scraps and use method thereof Technical Field The invention relates to the technical field of metal copper recovery and crushing, in particular to a crushing device for recovering metal copper from scrap circuit boards and copper-clad plate leftovers and a use method thereof. Background With the rapid development of the electronic industry, the quantity of electronic wastes is increased, and serious pollution is caused to the environment. In order to reduce the harm of electronic waste to the environment, the electronic waste is required to be recycled, wherein the recycling of the copper metal from the scrap circuit board and the copper-clad plate leftover is one of important links, and along with the rapid development of the electronic industry and the importance of people on environmental protection, the market demand of recycling the copper metal from the scrap circuit board and the copper-clad plate leftover is continuously increased. The recovered metal copper can be used for manufacturing electronic products again, so that the exploitation and processing of new copper resources are reduced, meanwhile, the production cost can be reduced, the economic benefit of enterprises is improved, and along with the continuous progress of technology, the technology for recovering the metal copper from the waste circuit boards and copper-clad plate leftover materials is mature gradually. At present, metallic copper is generally recovered by mechanical methods. For example, chinese patent application No. CN114558650A discloses a copper-clad plate leftover material crushing and recycling device, which comprises an equipment main body, wherein the equipment main body comprises a crushing assembly used for crushing copper-clad plate leftover materials, a crushing member is arranged in the crushing assembly, a sorting and recycling assembly used for sorting and recycling materials crushed by the crushing assembly is arranged in the sorting and recycling assembly, a telescopic member used for controlling the crushing member to move up and down is arranged in the sorting and recycling assembly, the telescopic member can be controlled by a user to operate through the equipment main body, a driving cylinder drives a telescopic rod to extend, and a fine adjusting member, a mounting frame and the crushing member are driven to integrally move up, so that a driving crushing roller and a driven crushing roller can conveniently clean crushing fine materials adhered to the outer sides of the driving crushing roller and the driven crushing roller, and the follow-up normal use of the driving crushing roller and the driven crushing roller is ensured. The above-mentioned prior art can realize the breakage to waste circuit board and copper-clad plate leftover bits, however, along with the long-time use of crushing roller, can make overall temperature higher because of violent friction, then in crushing process, the copper is higher on the one hand to take place to soften easily, makes its toughness improvement be difficult to the fragmentation, and on the other hand waste circuit board inside plastics and resin are easy because of high temperature melting to influence crushing mechanism, consequently do not satisfy current demand, to this we propose a waste circuit board and copper-clad plate leftover bits retrieve breaker for metallic copper and application method thereof. Disclosure of Invention The invention aims to provide a crushing device for recycling metal copper from scrap of waste circuit boards and copper-clad plates and a use method thereof, so as to solve the problem that the crushing device provided in the background art is difficult to crush due to softening of copper waste caused by too high internal temperature in long-time use. The invention provides a crushing device for recycling metal copper from scrap circuit boards and copper-clad plate scraps, which comprises a shell, wherein a conveying device is arranged on one side of the inside of the shell, a crushing mechanism is arranged on the other side of the inside of the shell, and a discharge end of the conveying device is positioned above the crushing mechanism, and the crushing device further comprises: The cooling mechanism is arranged at the upper end of the inside of the shell and consists of a blowing fan and an evaporator, the blowing fan is arranged in the shell, and the evaporator is fixed below the blowing fan; The first-stage crushing cavity is arranged above the inside of the crushing mechanism, crushing rollers are rotatably arranged on two sides of the inside of the first-stage crushing cavity, one end of each crushing roller rotating shaft is fixedly provided with a transmission gear, and the transmission gears are in meshed connection; The secondary crushing cavity is arranged below the primary crushing cavity, a crushing extrusion plate is arranged inside the