A plastic electrostatic sorting machine

Abstract

The utility model provides a kind of plastic electrostatic sorting machine;Belong to plastic recycling field;Its technical key points include friction mechanism, the friction mechanism includes jar body, the bottom of jar body is annular array fixedly connected with multiple stand, the top of jar body is fixedly connected with crosspiece, the top of crosspiece is fixedly connected with driving motor, the output of driving motor is fixedly connected with stirring paddle, the stirring paddle is set in the inside of jar body, the bottom of jar body is connected with the conveying pipe of intercommunication, the conveying pipe one side is fixedly connected with conveying motor, the output of conveying motor is fixedly connected with spiral conveying blade, the spiral conveying blade is rotatably connected in the inside of conveying pipe, the bottom one side of conveying pipe is fixedly connected with the discharge pipe of intercommunication;The utility model aims at providing a kind of plastic electrostatic sorting machine;For improving subsequent the sorting effect of plastic broken particle.

Description

Technical Field

[0001] This utility model relates to the field of plastic recycling, specifically a plastic electrostatic sorting machine. Background Technology

[0002] Plastic recycling refers to the process of recycling waste plastics using specific recycling techniques to achieve the goal of turning waste into treasure. During the plastic recycling process, different types of plastics cannot be directly mixed. If they are recycled without sorting, it will severely damage the mechanical properties of the plastics, greatly reducing their use and economic value. Furthermore, the value of different types of plastics varies significantly. Therefore, electrostatic sorting machines are needed to separate the plastics during the recycling process.

[0003] The working principle of a plastic sorting machine is based on the characteristics of different plastics during friction. Due to the differences in surface energy levels among different plastics, electron transfer occurs during mutual friction, causing the plastics to become charged. For example, PVC easily becomes negatively charged after friction, while plastics such as ABS / PS / PP tend to become positively charged. This difference in charging is determined by the electrical conductivity and dielectric properties of the materials, thus forming a triboelectric charging sequence. Inside the sorting machine, a high-voltage generator produces an electrostatic field, typically in the range of 10-30kV. When charged plastic particles enter this electrostatic field, they are subjected to Coulomb forces, causing their trajectory to deviate. Positively charged particles are attracted to the negative electrode plate, while negatively charged particles are attracted to the positive electrode plate. Currently, plastic sorting machines mainly rely on elevators to transport the plastics, generating friction between them during this process to achieve triboelectric charging. However, this method has certain drawbacks; the friction between the plastics is often insufficient, leading to poor subsequent sorting results. Utility Model Content

[0004] The purpose of this invention is to provide a plastic electrostatic sorting machine to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A plastic electrostatic sorting machine includes a friction mechanism.

[0007] The friction mechanism includes a tank body. Multiple columns are fixedly connected to the bottom of the tank body in a circular array. A horizontal plate is fixedly connected to the top of the tank body. A drive motor is fixedly connected to the top of the horizontal plate. An agitator is fixedly connected to the output end of the drive motor. The agitator is disposed inside the tank body. A connecting conveying pipe is connected to the bottom of the tank body. A conveying motor is fixedly connected to one side of the conveying pipe. A spiral conveying blade is fixedly connected to the output end of the conveying motor. The spiral conveying blade is rotatably connected to the inside of the conveying pipe. A connecting discharge pipe is fixedly connected to one side of the bottom of the conveying pipe.

[0008] The sorting mechanism includes a sorting box located below the discharge pipe. A positive electrode plate and a negative electrode plate are fixedly connected to the two sides inside the sorting box, and a conical separator is fixedly connected to the middle position inside the sorting box.

[0009] As a further embodiment of this utility model: a discharge valve is fixedly connected to the bottom of the tank, and the end of the discharge valve away from the tank is fixedly connected to the conveying pipe.

[0010] As a further embodiment of this utility model: a flat tube is fixedly connected to the bottom of the discharge pipe, and the flat tube corresponds to the conical partition seat.

[0011] As a further embodiment of this utility model: the bottom of the sorting box is symmetrically and fixedly connected with guide grooves, and both sets of guide grooves are connected to the sorting box.

[0012] As a further embodiment of this utility model: symmetrical tie rods are fixedly connected to both sides of the guide channel, and each set of tie rods is fixedly connected to the sorting box.

[0013] As a further embodiment of this utility model: the bottom of the conical partition seat and the bottom of the two sets of guide channels are symmetrically and fixedly connected with support columns.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] With the above-described structure, this invention, through the cooperation of the drive motor, stirring paddle, conveying pipe, and conveying motor, enables the stirring paddle to rotate when the drive motor starts working. The stirring paddle can stir the plastic fragments inside the tank when rotating, causing the plastic fragments inside the tank to rub against each other. When the plastic fragments rub against each other, electron transfer occurs due to the difference in surface energy levels, resulting in charging. Compared with the traditional method of using a hoist to convey plastic fragments, this invention effectively improves the friction effect on the plastic fragments, thereby increasing the charge on the plastic fragments after friction, and thus improving the subsequent sorting effect of the plastic fragments. Attached Figure Description

[0016] The present invention will be further described in detail below with reference to the embodiments shown in the accompanying drawings, but this does not constitute any limitation on the present invention.

[0017] Figure 1 This is a schematic diagram of the structure of a plastic electrostatic sorting machine.

[0018] Figure 2 A plastic electrostatic sorting machine Figure 1 A schematic diagram of the structure of part A.

[0019] Figure 3 This is a structural schematic diagram of a plastic electrostatic sorting machine from another perspective.

[0020] Figure 4 A plastic electrostatic sorting machine Figure 3 A schematic diagram of the structure of part B.

[0021] In the diagram: 1. Friction mechanism; 101. Tank body; 102. Column; 103. Horizontal plate; 104. Drive motor; 105. Agitator; 106. Discharge valve; 107. Conveying pipe; 108. Conveying motor; 109. Spiral conveyor blade; 110. Discharge pipe; 111. Flat pipe; 2. Sorting mechanism; 201. Sorting box; 202. Positive electrode plate; 203. Negative electrode plate; 204. Conical separator seat; 205. Guide channel; 206. Diagonal tie rod; 207. Support column. Detailed Implementation

[0022] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0023] Please see Figure 1-4 A plastic electrostatic sorting machine includes a friction mechanism 1. The friction mechanism 1 includes a tank 101. Multiple columns 102 are fixedly connected in a circular array at the bottom of the tank 101, providing support for the tank 101. A horizontal plate 103 is fixedly connected to the top of the tank 101, and a drive motor 104 is fixedly connected to the top of the horizontal plate 103, providing support for the drive motor 104.

[0024] A stirring paddle 105 is fixedly connected to the output end of the drive motor 104. The stirring paddle 105 is disposed inside the tank 101. The drive motor 104 is configured to drive the stirring paddle 105 to rotate during startup, so that the stirring paddle 105 can stir the plastic fragments inside the tank 101 when rotating, so that the plastic fragments can rub against each other, thereby realizing triboelectric charging of the plastic fragments. A conveying pipe 107 is connected to the bottom of the tank 101, and a discharge valve 106 is fixedly connected to the bottom of the tank 101. The end of the discharge valve 106 away from the tank 101 is fixedly connected to the conveying pipe 107. The discharge valve 106 is configured to allow the plastic fragments inside the tank 101 to fall into the conveying pipe 107 when opened.

[0025] A conveying motor 108 is fixedly connected to one side of the conveying pipe 107. A spiral conveying blade 109 is fixedly connected to the output end of the conveying motor 108. The spiral conveying blade 109 is rotatably connected inside the conveying pipe 107. The conveying motor 108 is configured to drive the spiral conveying blade 109 to rotate during startup, allowing the spiral conveying blade 109 to convey plastic fragments falling into the conveying pipe 107. A discharge pipe 110 is fixedly connected to one side of the bottom of the conveying pipe 107, allowing the plastic fragments inside the conveying pipe 107 to be discharged. A sorting mechanism 2 includes a sorting box 201 located below the discharge pipe 110, which is used to catch the plastic fragments discharged from the discharge pipe 110.

[0026] A positive electrode plate 202 and a negative electrode plate 203 are fixedly connected to the two sides of the inside of the sorting box 201, respectively. The positive electrode plate 202 and the negative electrode plate 203 are used to attract negatively charged and positively charged plastic fragments, respectively, when the power is on. A conical separator 204 is fixedly connected to the middle of the inside of the sorting box 201. The conical separator 204 is used to separate the falling plastic fragments. A flat tube 111 is fixedly connected to the bottom of the discharge pipe 110. The flat tube 111 corresponds to the conical separator 204. The flat tube 111 is used to ensure that the plastic fragments fall evenly.

[0027] The bottom of the sorting box 201 is symmetrically and fixedly connected with guide channels 205. Both sets of guide channels 205 are connected to the sorting box 201, and the guide channels 205 are used to guide the falling plastic fragments. The sides of the guide channels 205 are symmetrically and fixedly connected with diagonal tie rods 206. Each set of diagonal tie rods 206 is fixedly connected to the sorting box 201, and the diagonal tie rods 206 are used to further connect and fix the guide channels 205 to the sorting box 201, thereby improving the connection stability between the guide channels 205 and the sorting box 201. The bottom of the conical separator 204 and the bottom of the two sets of guide channels 205 are symmetrically and fixedly connected with support columns 207, and the support columns 207 are used to support the conical separator 204 and the guide channels 205.

[0028] In operation, the plastic fragments to be sorted are poured into the tank 101, and then the drive motor 104 is started. The drive motor 104 drives the agitator 105 to rotate, which in turn agitates the plastic fragments inside the tank 101. This agitation causes the plastic fragments to rub against each other, resulting in electron transfer due to surface energy level differences, thus becoming charged. For example, PVC, PP, and PA tend to become negatively charged after friction, while ABS and PS tend to become positively charged. Next, the discharge valve 106 is opened and the conveyor motor 108 is started, allowing the plastic fragments inside the tank 101 to be discharged into the conveyor pipe 107 when the discharge valve 106 is open. When the conveyor motor 108 starts working, it drives the spiral conveyor blade 109 to rotate, so that the spiral conveyor blade 109 can convey the plastic fragments falling into the conveyor pipe 107 when rotating. Then, the fragments fall into the sorting box 201 through the discharge pipe 110 and the flat pipe 111. Then, the positive plate 202 and the negative plate 203 are energized, so that when the plastic fragments fall, the positive plate 202 can attract the negatively charged plastic fragments, while the negative plate 203 can attract the positively charged plastic fragments. The negatively charged plastic fragments fall onto the guide groove 205 on the side near the positive plate 202, and the positively charged plastic fragments fall onto the guide groove 205 on the side near the negative plate 203, thereby achieving the separation of plastic.

[0029] The above-described embodiments are preferred embodiments of the present utility model and are only used to facilitate the illustration of the present utility model. They are not intended to limit the present utility model in any way. Any person skilled in the art who makes partial modifications or alterations to the technical content disclosed in the present utility model without departing from the scope of the technical features of the present utility model shall still fall within the scope of the technical features of the present utility model.

Claims

1. A plastic electrostatic sorting machine, characterized in that, Including friction mechanism (1), The friction mechanism (1) includes a tank (101), with multiple columns (102) fixedly connected in a ring array at the bottom of the tank (101), a horizontal plate (103) fixedly connected at the top of the tank (101), a drive motor (104) fixedly connected at the top of the horizontal plate (103), a stirring paddle (105) fixedly connected at the output end of the drive motor (104), the stirring paddle (105) being disposed inside the tank (101), a connected conveying pipe (107) connected at the bottom of the tank (101), a conveying motor (108) fixedly connected on one side of the conveying pipe (107), a spiral conveying blade (109) fixedly connected at the output end of the conveying motor (108), the spiral conveying blade (109) being rotatably connected inside the conveying pipe (107), and a connected discharge pipe (110) fixedly connected on one side of the bottom of the conveying pipe (107). The sorting mechanism (2) includes a sorting box (201) disposed below the discharge pipe (110). A positive electrode plate (202) and a negative electrode plate (203) are fixedly connected to the two sides inside the sorting box (201) respectively. A conical separator seat (204) is fixedly connected to the middle position inside the sorting box (201).

2. The electrostatic plastic sorting machine according to claim 1, characterized in that, The bottom of the tank (101) is fixedly connected to a discharge valve (106), and the end of the discharge valve (106) away from the tank (101) is fixedly connected to the conveying pipe (107).

3. The electrostatic plastic sorting machine according to claim 1, characterized in that, The bottom of the discharge pipe (110) is fixedly connected to a communicating flat pipe (111), which corresponds to the conical partition seat (204).

4. A plastic electrostatic sorting machine according to claim 1, characterized in that, The bottom of the sorting box (201) is symmetrically and fixedly connected with guide grooves (205), and both sets of guide grooves (205) are connected to the sorting box (201).

5. A plastic electrostatic sorting machine according to claim 4, characterized in that, The guide channel (205) is symmetrically fixedly connected to the two sides by diagonal tie rods (206), and each set of diagonal tie rods (206) is fixedly connected to the sorting box (201).

6. A plastic electrostatic sorting machine according to claim 5, characterized in that, The bottom of the conical partition seat (204) and the bottom of the two sets of guide channels (205) are symmetrically fixedly connected with support columns (207).

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