Polytetrafluoroethylene particle recovery device

Abstract

The utility model discloses a polytetrafluoroethylene particle recovery device, which relates to the field of polytetrafluoroethylene particle recovery, and comprises a recovery device body, a crushing bin is arranged in the recovery device body, a bearing is arranged in the crushing bin, the end part of the bearing is connected with a first motor, the outer wall of the bearing is provided with crushing blades, and the crushing blades are connected with the first motor. A material distributing bin is arranged at the bottom of the smashing bin, a filtering assembly is installed in the material distributing bin, a conveying bin is arranged on one side of the recycling device body, and a conveying assembly is installed in the conveying bin. According to the utility model, the crushing blades in the crushing bin crush polytetrafluoroethylene wastes, and polytetrafluoroethylene blocks which are not crushed into particles slide into the conveying bin through the material conveying inlet pipeline and then are conveyed by the spiral conveyor, so that the polytetrafluoroethylene blocks return to the crushing bin again; and the crushing blades in the crushing bin perform secondary crushing on the polytetrafluoroethylene blocks, so that the polytetrafluoroethylene waste can be fully crushed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of polytetrafluoroethylene particle recovery, in particular to a kind of polytetrafluoroethylene particle recovery device. BACKGROUND

[0002] Polytetrafluoroethylene, commonly known as "plastic king", is a kind of macromolecule polymer prepared by polymerization of tetrafluoroethylene as monomer, which has extremely excellent chemical stability, corrosion resistance, sealing, high lubrication non-stick, electrical insulation and good anti-aging resistance, in chemical industry, it can be used to manufacture corrosion-resistant pipeline, valve, container and other equipment, which can withstand the corrosion of various strong acids, strong alkali and organic solvents.

[0003] The existing polytetrafluoroethylene particle recovery device mainly crushes, grinds and other means to crush waste into smaller particles, then uses screening, air separation and other separation technologies to remove impurities and other non-polytetrafluoroethylene components, and finally cleans and dries the recovered polytetrafluoroethylene particles to meet the reusable standard. Polytetrafluoroethylene crushed into particles is easier to process and reuse, and can be made into various shapes and specifications of waste products through injection molding, extrusion and other processes according to different needs.

[0004] In the process of recycling polytetrafluoroethylene waste, crushing polytetrafluoroethylene waste into particles is the first step of recycling polytetrafluoroethylene. However, the existing polytetrafluoroethylene particle recovery device is easy to crush polytetrafluoroethylene waste into particles and blocks during the crushing process, which reduces the recovery efficiency of the subsequent recovery process. Therefore, the existing polytetrafluoroethylene recovery device has poor crushing effect. TECHNICAL CONTENT

[0005] Therefore, the utility model aims to provide a kind of polytetrafluoroethylene particle recovery device to solve the technical problem that traditional polytetrafluoroethylene particle recovery device is easy to appear blockiness when crushing polytetrafluoroethylene plastic pipe, which leads to poor crushing effect of polytetrafluoroethylene particle recovery device.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a kind of polytetrafluoroethylene particle recovery device, including recovery device body, the side of recovery device body is equipped with feed inlet, the inside of recovery device body is provided with crushing bin, and the inside of crushing bin is installed with bearing, and the end of bearing is connected with first motor, the outer wall of bearing is provided with crushing blade, the bottom of crushing bin is provided with distribution bin, and the inside of distribution bin is installed with filter assembly, the filter assembly includes filter screen, spring, fixed block, centrifuge and connecting block, the side of recovery device body is provided with conveying bin, and the inside of conveying bin is installed with conveying assembly, the conveying assembly includes spiral conveyor and third motor.

[0007] By adopting the above technical scheme, the polytetrafluoroethylene waste enters the crushing bin along the feeding pipe, the crushing blades in the crushing bin crush the polytetrafluoroethylene waste, a plurality of sets of crushing blades are arranged in the crushing bin, and the diameter of the crushing blades decreases with the depth of the polytetrafluoroethylene waste into the bottom of the crushing bin, so that the polytetrafluoroethylene waste is fully crushed, the polytetrafluoroethylene blocks that are not crushed into particles fall into the inside of the conveying bin through the conveying inlet pipe, and then are conveyed through the spiral conveyor, so that the polytetrafluoroethylene blocks return to the crushing bin again, and the crushing blades in the crushing bin crush the polytetrafluoroethylene blocks again, so that the polytetrafluoroethylene waste can be fully crushed.

[0008] The utility model further sets up, the crushing bin sets up as a taper, and the diameter of crushing bin is greater than the diameter of crushing blade.

[0009] By adopting the above technical scheme, the polytetrafluoroethylene waste entering the inside of the crushing bin falls down along the inner wall of the crushing bin, the crushing bin is set as a taper, so that the polytetrafluoroethylene waste can gather to the center position of the crushing bin during the crushing process, and the crushing blades can fully crush the polytetrafluoroethylene waste.

[0010] The utility model further sets up, the crushing blade sets up a plurality of sets, and the diameter of crushing blade decreases with the depth of crushing bin.

[0011] By adopting the above technical scheme, a plurality of sets of crushing blades are installed on the outer wall of the bearing, so that the polytetrafluoroethylene waste can be crushed by the crushing blades multiple times when moving in the crushing bin, thereby making the polytetrafluoroethylene waste fully crushed.

[0012] The utility model further sets up, the bottom of crushing bin is provided with the discharge pipe, and the discharge pipe is connected with the inside of crushing bin and distribution bin.

[0013] By adopting the above technical scheme, the discharge pipe connected with the inside of the crushing bin and the distribution bin can convey the crushed polytetrafluoroethylene particles to the distribution bin, so that the next step can be continued.

[0014] The utility model further sets up, the bottom of filter screen is installed with second motor, and the output of second motor is connected with the outer wall of the centrifuge of rotating rod, and the end of rotating rod is connected with the connecting block.

[0015] By adopting the above technical scheme, the second motor drives the centrifuge to rotate through the rotating rod, the high-speed rotating centrifuge generates a certain centrifugal force, drives the whole filter assembly to shake and displace up and down, and the filter screen forms high-frequency vibration, so that the filter screen screens and filters the polytetrafluoroethylene particles on the top.

[0016] The utility model further sets up, the bottom of fixed block is installed with spring.

[0017] Through adopting above -mentioned technical scheme, spring one end is connected with fixed block, the other end is connected with the bottom of inside wall of branch bin, spring not only supports filter assembly whole, moreover, the up and down displacement of filter screen is limited, prevents the up and down displacement amplitude of filter screen from being too big.

[0018] The utility model further sets up, the inside of filter screen is provided with powder bin, the one side of inside wall of branch bin is provided with discharge gate, and the bottom position of discharge gate is higher than the bottom of inside wall of powder bin.

[0019] Through adopting above -mentioned technical scheme, the polytetrafluoroethylene particle of filter screen top falls into powder bin through the filter hole of filter screen surface, makes the classified recovery of the polytetrafluoroethylene of completion of crushing, and subsequent use is convenient.

[0020] The utility model further sets up, the inside wall one side of recovery device body is provided with material transfer inlet pipeline, and material transfer inlet pipeline is connected with the inside of branch bin and conveying bin.

[0021] Through adopting above -mentioned technical scheme, the blocky polytetrafluoroethylene above filter screen slides down to material transfer inlet pipeline along the inclined plane of filter screen, because the inside wall of material transfer inlet pipeline is inclined and sets up, makes the blocky polytetrafluoroethylene can slide down to conveying bin.

[0022] The utility model further sets up, the inside of conveying bin is installed with spiral conveyor, and the bottom of spiral conveyor is installed with third motor, and the outer wall of spiral conveyor is fixed with spiral blade.

[0023] Through adopting above -mentioned technical scheme, the blocky polytetrafluoroethylene enters conveying bin through material transfer inlet pipeline, and then spiral conveyor is conveyed to the top end in the inside of conveying bin to the blocky polytetrafluoroethylene through spiral blade.

[0024] The utility model further sets up, the top of conveying bin is provided with material transfer outlet pipeline, and material transfer outlet pipeline is connected with the inside of conveying bin and crushing bin.

[0025] Through adopting above -mentioned technical scheme, the blocky polytetrafluoroethylene that is conveyed to the top end of conveying bin through spiral conveyor enters crushing bin through material transfer outlet pipeline, makes the blocky polytetrafluoroethylene in crushing bin to carry out secondary crushing, makes polytetrafluoroethylene waste product to be fully crushed.

[0026] Summarized above, the utility model mainly has following beneficial effect:

[0027] 1. The utility model discloses a recycling device body, crushing blade, crushing bin, conveying import pipeline, conveying export pipeline and spiral conveyor are set up, solve the problem that traditional polytetrafluoroethylene particle recycling device crushing polytetrafluoroethylene plastic pipe crushing effect is poor, and the polytetrafluoroethylene waste is along the feed inlet pipeline and enters the crushing bin, and the crushing blade in the crushing bin carries out the crushing treatment to the polytetrafluoroethylene waste, a plurality of crushing blades are arranged in the crushing bin, and the diameter of the crushing blade decreases with the depth of the polytetrafluoroethylene waste to the bottom of the crushing bin, so that the polytetrafluoroethylene waste is fully crushed, and the polytetrafluoroethylene block that is not crushed into particles slides through the conveying import pipeline and falls into the inside of the conveying bin, and then is conveyed through the spiral conveyor, so that the polytetrafluoroethylene block returns to the crushing bin again, and the crushing blade in the crushing bin carries out secondary crushing to the polytetrafluoroethylene block, so that the polytetrafluoroethylene waste can be fully crushed.

[0028] 2. The utility model discloses a filter screen, powder bin, spring and centrifugal ware are set up, and the second motor drives the centrifugal ware to rotate through the rotating rod, and the centrifugal ware drives the whole filter assembly to displace up and down in the rotating process, and the polytetrafluoroethylene particles on the surface of the filter screen are high -speed shaken, and the polytetrafluoroethylene particles fall into the powder bin through the leakage hole at the top of the filter screen, and finally are taken out through the discharge gate on one side of the recycling device body, and the polytetrafluoroethylene block that is not crushed into granular shape slides through the shaking of the filter screen and falls to the conveying import pipeline at the bottom end of the filter screen, and the filter assembly in the recycling device body can carry out screening recovery to the polytetrafluoroethylene particles that are crushed, so that the polytetrafluoroethylene particles that are crushed are convenient for the subsequent processing of the staff. ACCURACY OF DRAWINGS

[0029] Figure 1 It is the device overall schematic drawing of the utility model;

[0030] Figure 2 It is the device internal structure drawing of the utility model;

[0031] Figure 3 It is the device side sectional view of the utility model;

[0032] Figure 4 It is the filter assembly schematic drawing of the utility model;

[0033] Figure 5 It is the conveying assembly schematic drawing of the utility model.

[0034] In the diagram: 1. Recycling device body; 11. Feed inlet; 2. Crushing bin; 3. Crushing blade; 31. Bearing; 32. First motor; 4. Discharge pipe; 5. Distribution bin; 51. Discharge port; 6. Filter screen; 61. Powder bin; 62. Spring; 63. Fixing block; 7. Centrifuge; 71. Rotating rod; 72. Second motor; 73. Connecting block; 8. Screw conveyor; 81. Material transfer outlet pipe; 82. Material transfer inlet pipe; 83. Screw blade; 84. Third motor. Detailed Implementation

[0035] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0036] The embodiments of this utility model will be described below based on its overall structure.

[0037] A polytetrafluoroethylene (PTFE) particle recycling device, such as Figure 1 - Figure 5 As shown, the device includes a recycling unit body 1. A feed inlet 11 is provided on one side of the recycling unit body 1. A crushing chamber 2 is located inside the recycling unit body 1, and a bearing 31 is installed inside the crushing chamber 2. A first motor 32 is connected to the end of the bearing 31. Crushing blades 3 are provided on the outer wall of the bearing 31. A distribution chamber 5 is located at the bottom of the crushing chamber 2, and a filter assembly is installed inside the distribution chamber 5. The waste filter assembly includes a filter screen 6, a spring 62, a fixing block 63, a centrifuge 7, and a connecting block 73. A conveying chamber 85 is located on one side of the recycling unit body 1, and a conveying assembly is installed inside the conveying chamber 85. The waste conveying assembly includes a screw conveyor 8 and a... The third motor 84 guides the PTFE waste into the crushing chamber 2 via the feed inlet pipe 11. The crushing blades 3 in the crushing chamber 2 crush the PTFE waste. The crushing chamber 2 is equipped with multiple sets of crushing blades 3, and the diameter of the crushing blades 3 decreases as the PTFE waste goes deeper into the bottom of the crushing chamber 2, so that the PTFE waste is fully crushed. The PTFE lumps that are not crushed into particles slide down into the conveying chamber 85 through the feed inlet pipe 82. Then, they are conveyed by the screw conveyor 8, so that the PTFE lumps return to the crushing chamber 2. The crushing blades 3 in the crushing chamber 2 crush the PTFE lumps a second time, so that the PTFE waste can be fully crushed.

[0038] Please see Figure 2, the waste crushing bin 2 is conical, and the diameter of the crushing bin 2 is greater than the diameter of the crushing blade 3, the polytetrafluoroethylene waste entering the inside of the crushing bin 2 falls along the inner wall of the crushing bin 2 downwards, and the conical structure of the crushing bin 2 enables the polytetrafluoroethylene waste to gather to the center of the crushing bin 2 during the crushing process, thereby facilitating the crushing of the polytetrafluoroethylene waste by the crushing blade 3.

[0039] Please refer to Figure 2 , the waste crushing blade 3 is provided with multiple groups, and the diameter of the crushing blade 3 decreases with the depth of the crushing bin 2, and the multiple groups of the crushing blade 3 are installed on the outer wall of the bearing 31, so that the polytetrafluoroethylene waste can be crushed by the crushing blade 3 multiple times when moving in the crushing bin 2, thereby enabling the polytetrafluoroethylene waste to be fully crushed.

[0040] Please refer to Figure 3 , the bottom of the waste crushing bin 2 is provided with a discharge pipe 4, and the discharge pipe 4 communicates the inside of the crushing bin 2 and the inside of the distribution bin 5, the discharge pipe 4 communicating the inside of the crushing bin 2 and the inside of the distribution bin 5 can convey the crushed polytetrafluoroethylene particles to the distribution bin 5, thereby enabling the next step.

[0041] Please refer to Figure 4 , the bottom of the waste filter screen 6 is provided with a second motor 72, and the output end of the second motor 72 is connected with a rotating rod 71, the outer wall of the waste rotating rod 71 is fixed with a centrifugal separator 7, and the end of the waste rotating rod 71 is connected with a connecting block 73, the second motor 72 drives the centrifugal separator 7 to rotate through the rotating rod 71, the high-speed rotating centrifugal separator 7 generates a certain centrifugal force, drives the whole filter assembly to displace up and down, and the filter screen 6 forms high-frequency vibration, thereby enabling the filter screen 6 to screen and filter the polytetrafluoroethylene particles on the top.

[0042] Please refer to Figure 4 , the bottom end of the waste filter screen 6 is fixed with a fixed block 63, and the bottom of the fixed block 63 is provided with a spring 62, one end of the spring 62 is connected with the fixed block 63, and the other end is connected with the bottom end of the inner wall of the distribution bin 5, the spring 62 not only supports the whole filter assembly, but also limits the up and down displacement of the filter screen 6, thereby preventing the up and down displacement amplitude of the filter screen 6 from being too large.

[0043] Please refer to Figure 2 , the inside of the waste filter screen 6 is provided with a powder bin 61, one side of the inner wall of the waste distribution bin 5 is provided with a discharge port 51, and the bottom position of the discharge port 51 is higher than the bottom end of the inner wall of the powder bin 61, the polytetrafluoroethylene particles on the top of the filter screen 6 fall into the powder bin 61 through the filter holes on the surface of the filter screen 6, so that the crushed polytetrafluoroethylene is classified and recycled, thereby facilitating subsequent use.

[0044] Please refer to Figure 3The inner wall side of the waste recycling device body 1 is provided with a material conveying inlet pipeline 82, and the material conveying inlet pipeline 82 communicates the interiors of the material distribution bin 5 and the conveying bin 85; the block-shaped polytetrafluoroethylene above the filter screen 6 slides along the slope of the filter screen 6 and falls into the material conveying inlet pipeline 82; and due to the inclined arrangement of the inner wall of the material conveying inlet pipeline 82, the block-shaped polytetrafluoroethylene can slide into the conveying bin 85.

[0045] Please refer to Figure 3 The interior of the waste conveying bin 85 is provided with a spiral conveyor 8, the bottom of the spiral conveyor 8 is provided with a third motor 84, the outer wall of the waste spiral conveyor 8 is fixedly provided with a spiral blade 83, the block-shaped polytetrafluoroethylene enters the conveying bin 85 through the material conveying inlet pipeline 82, then the spiral conveyor 8 conveys the block-shaped polytetrafluoroethylene upwards through the spiral blade 83, and the block-shaped polytetrafluoroethylene is conveyed to the top end inside the conveying bin 85.

[0046] Please refer to Figure 2 and Figure 3 The top of the waste conveying bin 85 is provided with a material conveying outlet pipeline 81, and the material conveying outlet pipeline 81 communicates the interiors of the conveying bin 85 and the crushing bin 2; the block-shaped polytetrafluoroethylene conveyed to the top end of the conveying bin 85 by the spiral conveyor 8 enters the crushing bin 2 through the material conveying outlet pipeline 81, so that the block-shaped polytetrafluoroethylene is subjected to secondary crushing in the crushing bin 2, and the polytetrafluoroethylene waste is fully crushed.

[0047] The working principle of the utility model is as follows: firstly, the polytetrafluoroethylene waste is put into the interior of the recycling device body 1 from the feeding port 11, the polytetrafluoroethylene waste enters the crushing bin 2 along the pipeline of the feeding port 11, the crushing blades 3 in the crushing bin 2 crush the polytetrafluoroethylene waste, a plurality of groups of crushing blades 3 are arranged in the crushing bin 2, and the diameters of the crushing blades 3 decrease with the deepening of the polytetrafluoroethylene waste towards the bottom of the crushing bin 2, so that the polytetrafluoroethylene waste is fully crushed, the polytetrafluoroethylene particles after crushing enter the surface of the filter screen 6 in the material distribution bin 5 through the discharge pipeline 4, the second motor 72 drives the centrifugal machine 7 to rotate through the rotating rod 71, the centrifugal machine 7 drives the whole filtering assembly to displace up and down in the rotating process, the polytetrafluoroethylene particles on the surface of the filter screen 6 are subjected to high-speed shaking, the polytetrafluoroethylene particles fall into the powder bin 61 through the leakage hole at the top of the filter screen 6, and finally, the polytetrafluoroethylene blocks that are not crushed into particles slide to the material conveying inlet pipeline 82 at the bottom end of the filter screen 6 through the shaking of the filter screen 6, slide along the inclined material conveying inlet pipeline 82 to the surface of the spiral conveyor 8, the spiral conveyor 8 conveys the block-shaped polytetrafluoroethylene upwards through the spiral blade 83, and then the block-shaped polytetrafluoroethylene falls into the interior of the crushing bin 2 through the port of the material conveying outlet pipeline 81, and is subjected to secondary crushing.

[0048] Although the embodiments of the utility model have been shown and described, the specific embodiments are only the interpretation of the utility model, and are not the limitation of the utility model, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable way, and the person skilled in the art can make the modification, replacement and change of the embodiments without the creative contribution after reading the specification without departing from the principles and purposes of the utility model, but as long as it is in the scope of the claims of the utility model, it is protected by the patent law.

Claims

1. A polytetrafluoroethylene particle recovery device comprising a recovery device body (1), characterised in that: The side of the recycling device body (1) is provided with a feeding port (11), the inside of the recycling device body (1) is provided with a crushing bin (2), the inside of the crushing bin (2) is provided with a bearing (31), the end of the bearing (31) is connected with a first motor (32), the outer wall of the bearing (31) is provided with a crushing blade (3), the bottom of the crushing bin (2) is provided with a distribution bin (5), the inside of the distribution bin (5) is provided with a filter assembly, the filter assembly comprises a filter screen (6), a spring (62), a fixed block (63), a centrifugal separator (7) and a connecting block (73), one side of the recycling device body (1) is provided with a conveying bin (85), and the inside of the conveying bin (85) is provided with a conveying assembly, and the conveying assembly comprises a spiral conveyor (8) and a third motor (84).

2. The polytetrafluoroethylene particle recovery device of claim 1, wherein: The crushing bin (2) is conical, and the diameter of the crushing bin (2) is greater than the diameter of the crushing blade (3).

3. The polytetrafluoroethylene particle recovery device of claim 1, wherein: The crushing blade (3) is provided with a plurality of groups, and the diameter of the crushing blade (3) decreases with the depth of the crushing bin (2).

4. The polytetrafluoroethylene particle recovery device of claim 1, wherein: The bottom of the crushing bin (2) is provided with a discharge pipeline (4), and the discharge pipeline (4) communicates the inside of the crushing bin (2) and the distribution bin (5).

5. The polytetrafluoroethylene particle recovery device of claim 1, wherein: The bottom of the filter screen (6) is provided with a second motor (72), and the output end of the second motor (72) is connected with a rotating rod (71), the outer wall of the rotating rod (71) is fixedly connected with a centrifugal separator (7), and the end of the rotating rod (71) is connected with a connecting block (73).

6. The polytetrafluoroethylene particle recovery device of claim 1, wherein: The bottom of the filter screen (6) is fixedly connected with a fixed block (63), and the bottom of the fixed block (63) is provided with a spring (62).

7. The polytetrafluoroethylene particle recovery device of claim 1, wherein: The inside of the filter screen (6) is provided with a powder bin (61), one side of the inner wall of the distribution bin (5) is provided with a discharge port (51), and the bottom of the discharge port (51) is higher than the bottom end of the inner wall of the powder bin (61).

8. The polytetrafluoroethylene particle recovery device of claim 1, wherein: One side of the inner wall of the recycling device body (1) is provided with a conveying inlet pipeline (82), and the conveying inlet pipeline (82) communicates the inside of the distribution bin (5) and the conveying bin (85).

9. The polytetrafluoroethylene particle recovery device of claim 1, wherein: The inside of the conveying bin (85) is provided with a spiral conveyor (8), and the bottom of the spiral conveyor (8) is provided with a third motor (84), and the outer wall of the spiral conveyor (8) is fixedly connected with a spiral blade (83).

10. The polytetrafluoroethylene particle recovery device of claim 1, wherein: The top of the conveying bin (85) is provided with a conveying outlet pipeline (81), and the conveying outlet pipeline (81) communicates the inside of the conveying bin (85) and the crushing bin (2).

Images