Plastic particle dust separation device

Abstract

The utility model belongs to the technical field of particle dust treatment, and particularly discloses a plastic particle dust separation device which comprises a tank body, a filter box, a four-way valve and a three-way valve, an upper shell is arranged on the tank body, a cover body is connected to the upper shell through a hinge, the upper shell is communicated with an overflow pipe, an opening is formed in the filter box, and an upper cover covers the opening of the filter box. The upper cover is formed by hinging two cover plates, a through hole is formed in the center of the upper cover, the end, away from the upper shell, of the overflow pipe penetrates through the through hole of the upper cover, a filtering assembly used for filtering dust particles in liquid is arranged in the filtering box, an upper net baffle and a lower net baffle are arranged in the tank body, a lower shell is arranged on the tank body, and a flow guide pipe, an air inlet pipe and a pipeline are arranged on the four-way valve. The four-way valve is connected with a three-way valve through a pipeline which is provided with a liquid pump, and the three-way valve is provided with a water outlet pipe. The device achieves the purpose of separating plastic particle dust through liquid circulation, and has the advantages that liquid is recycled for separation, dust particles are convenient to collect, and the use cost is low.

Description

Technical Field

[0001] The utility model relates to the technical field of particle dust treatment, in particular to a plastic particle dust separation device. Background Art

[0002] During the granulation of plastics and subsequent processing such as pneumatic conveying, mixing, storage, metering, screening, feeding and packaging, plastic particles may experience a certain amount of wear, which may produce finer dust particles. The dust content of plastics is an extremely important quality indicator of plastic injection molding. Its level directly affects the quality of injection molded products and also affects the injection efficiency. In the traditional industry, there is no relevant detection method for the dust of plastic particles. The amount of dust can only be visually observed, and it cannot be quantified. Since dust and particles have a high electrostatic force in the gas phase, it is very difficult to separate fine dust particles from the particle surface. It is impossible to quantify dust of different diameters, and it is impossible to detect through ordinary sieves.

[0003] The Chinese utility model patent with the public number CN207711225U and the application number CN201721901444.8 announced a plastic particle electrostatic dust separation device, including a dust removal hopper, the upper outlet of the dust removal hopper is connected to an exhaust fan, the lower inlet of the dust removal hopper is connected to one pipe opening of a three-way pipe fitting, and the other two pipe openings of the three-way pipe fitting are respectively connected to a conveying fan and an injection molding machine. The lower inlet of the dust removal hopper is also connected to an electrostatic eliminator, and a pneumatic ball valve is provided on the pipeline between the three-way pipe fitting and the injection molding machine. The ion wind generated by the electrostatic eliminator is introduced into the dust removal hopper to remove the adsorption of plastic particles and dust, and under the action of the exhaust fan, the dust is pushed upward and adsorbed by the filter, realizing the dust removal function of plastic particles.

[0004] Although the above patent solves the problem of separating plastic particles and plastic dust, there are still problems: the separation can only be done once, multiple filtrations are not possible, and the fine dust particles cannot be completely separated. Utility Model Content

[0005] The utility model aims to provide a plastic particle dust separation device to solve the problem that the above-mentioned patent can only separate once and cannot filter multiple times, and the fine dust particles cannot be completely separated.

[0006] To achieve the above object, the basic solution provided by the present utility model is as follows: A plastic particle dust separation device includes a tank body, a filtration box, a four-way valve, and a three-way valve. The tank body is provided with an upper housing, and a cover body is hingedly connected to the upper housing. An overflow pipe is communicated with the upper housing. The filtration box is provided with an opening, and an upper cover is covered at the opening of the filtration box. The upper cover is composed of two hinged cover plates, and a through hole is opened at the center of the upper cover. One end of the overflow pipe away from the upper housing passes through the through hole of the upper cover. A filtration component for filtering dust particles in the liquid is arranged in the filtration box. An upper mesh baffle and a lower mesh baffle are arranged in the tank body. The tank body is provided with a lower housing. The four-way valve is respectively provided with a diversion pipe, an air inlet pipe, and a pipeline. The four-way valve is connected to the lower housing through the diversion pipe, and the four-way valve is connected to the three-way valve through the pipeline. A liquid pump is arranged on the pipeline. The three-way valve is provided with a water outlet pipe, and the three-way valve is communicated with the bottom of the filtration box through the water outlet pipe.

[0007] The principle and beneficial effects of the present utility model are as follows: Solid plastics are placed in the tank body, and a liquid medium is poured into the filtration box. The liquid medium passes through the water outlet pipe and sequentially passes through the three-way valve and the four-way valve, and then is conducted and input into the tank body to clean and soak the internal solid plastics. Air is conducted and input into the tank body through the four-way valve to play a pulse role on the liquid in the tank body, so that the liquid in the tank body can fully separate the plastic particles. When the liquid level reaches the opening height of the overflow pipe, it flows into the filtration box from the overflow pipe to filter the dust particles in the liquid. The filtered water flows back into the tank body again to clean and soak the plastic particles again, and separates the plastic particles and particulate dust that were not separated in the first pass again. The above operations are cycled multiple times until the plastic particles and particulate dust are fully separated. The separation effect of the liquid on the plastic particles and particulate dust is good. The cyclic cleaning and soaking can optimize the separation effect and make the particulate dust be fully separated.

[0008] Solution two, this is the optimization of the basic solution. The filtration component includes a plurality of brackets arranged in the filtration box. The plurality of brackets are arranged at intervals from top to bottom. A filter screen is arranged on each bracket. The aperture of the filter screens in the filtration box gradually decreases from top to bottom. Arranging multiple layers of filter screens can filter particulate dust carried out in the liquid with different sizes. The filtration becomes more and more refined from large to small, and the filtered particulate dust can be extracted, dried, and the proportion can be calculated.

[0009] Solution three, this is the optimization of the basic solution. Both the upper mesh baffle and the lower mesh baffle are composed of two hinged baffles. One end of the upper mesh baffle is fixedly connected to the inner wall of the tank body. A handle is arranged on the movable end of the upper mesh baffle. A pull rod movably penetrates through the fixed end of the upper mesh baffle. A support frame is arranged in the tank body, and the lower mesh baffle is placed on the support frame. The lower end of the pull rod is connected to the hinge joint of the lower mesh baffle. Pulling up the handle of the upper mesh baffle can put solid plastics into the tank body. Pulling the pull rod can drive the lower mesh baffle to fold, so that the plastic particles in the tank body fall towards the lower housing.

[0010] Solution 4, which is the optimization of the basic solution. An exhaust pipe is connected to the cover body, and an exhaust valve is provided on the exhaust pipe. The air in the tank is discharged through the exhaust valve on the exhaust pipe, which will not cause gas accumulation and excessive air pressure in the tank.

[0011] Solution 5, which is the optimization of the basic solution. A throttle valve I is provided on the pipeline, and the throttle valve I is located on the side of the liquid pump away from the three-way valve. The throttle valve can control the liquid flow rate by changing the throttle section to achieve the purpose of adjusting the movement speed of the hydraulic pump.

[0012] Solution 6, which is the optimization of Solution 5. A flow meter is provided on the pipeline, and the flow meter is located on the side of the throttle valve I away from the liquid pump. When the liquid flows in the pipeline, the flow meter can be used to measure the liquid flow rate.

[0013] Solution 7, which is the optimization of the basic solution. A Y-shaped air filter is provided on the air inlet pipe, and a throttle valve II is provided on the side of the air inlet pipe where the Y-shaped air filter is located. After passing through the Y-shaped air filter, dust, dirt, bacteria, viruses and other particles in the air can be removed. The air intake volume is controlled by the throttle valve, and the filtered air is input into the tank, which will not affect the separation of plastic particles and particulate dust. Description of the Drawings

[0014] Figure 1 is the front view of a plastic particle dust separation device of the present utility model;

[0015] Figure 2 is the top view of the separation tank and the filter box of a plastic particle dust separation device of the present utility model;

[0016] Figure 3 is Figure 2 the sectional view taken along line A-A in

[0017] Figure 4 is Figure 3 the sectional view taken along line B-B in Detailed Description of the Preferred Embodiments

[0018] The present utility model will be further described in detail below through specific embodiments:

[0019] The reference numerals in the accompanying drawings of the specification include: 1. tank body, 2. upper shell, 3. exhaust valve, 4. lower shell, 5. upper net baffle, 6. lower net baffle, 7. diversion pipe, 8. four-way valve, 9. overflow pipe, 10. filter box, 11. air inlet pipe, 12. pipeline, 13. three-way valve, 14. water outlet pipe, 15. filter screen, 16. bracket, 17. liquid pump, 18. pull rod, 19. cover body, 20. exhaust pipe, 21. throttle valve I, 22. flow meter, 23. Y-shaped air filter, 24. throttle valve II, 25. upper cover, 26. support frame, 27. handle.

[0020] Embodiment

[0021] The embodiment is basically as shown in the appended Figure 1 to the appended Figure 3 as follows: A plastic particle dust separation device, characterized in that it includes a tank body 1, a filter box 10, a four-way valve 8, and a three-way valve 13. An upper shell 2 is provided on the tank body 1, a cover body 19 is hingedly connected to the upper shell 2, an overflow pipe 9 is communicated with the upper shell 2, the filter box 10 is provided with an opening, an upper cover 25 is hinged at the opening of the filter box 10, the upper cover 25 is composed of two hinged cover plates, a through hole is opened at the center of the upper cover 25, and one end of the overflow pipe 9 away from the upper shell 2 passes through the through hole of the upper cover 25. A filter assembly for filtering dust particles in the liquid is provided in the filter box 10. An upper mesh baffle 5 and a lower mesh baffle 6 are provided in the tank body 1. A lower shell 4 is provided on the tank body 1. A diversion pipe 7, an air inlet pipe 11, and a pipe 12 are respectively provided on the four-way valve 8. The four-way valve 8 is connected to the lower shell 4 through the diversion pipe 7. The four-way valve 8 is connected to the three-way valve 13 through the pipe 12. A liquid pump 17 is provided on the pipe 12. A water outlet pipe 14 is provided on the three-way valve 13. The three-way valve 13 is communicated with the bottom of the filter box 10 through the water outlet pipe 14. The filter assembly includes a plurality of brackets 16 arranged in the filter box 10. The plurality of brackets 16 are arranged at intervals from top to bottom. A filter screen 15 is provided on each bracket 16. The aperture of the filter screen 15 in the filter box 10 gradually decreases from top to bottom. Both the upper mesh baffle 5 and the lower mesh baffle 6 are composed of two hinged baffles. One end of the upper mesh baffle 5 is fixedly connected to the inner wall of the tank body 1. A handle 27 is provided on the movable end of the upper mesh baffle 5. A pull rod 18 movably penetrates through the fixed end of the upper mesh baffle 5. A support frame 26 is provided in the tank body 1. The lower mesh baffle 6 is placed on the support frame 26. The lower end of the pull rod 18 is connected to the hinge joint of the lower mesh baffle 6. An exhaust pipe 20 is communicated with the cover body 19. An exhaust valve 3 is provided on the exhaust pipe 20. A throttle valve I 21 is provided on the pipe 12. The throttle valve I 21 is located on the side of the liquid pump 17 away from the three-way valve 13. A flow meter 22 is provided on the pipe 12. The flow meter 22 is located on the side of the throttle valve I 21 away from the liquid pump 17. A Y-shaped air filter 23 is provided on the air inlet pipe 11. A throttle valve II 24 is provided on the air inlet pipe 11 on the side of the Y-shaped air filter 23. The material of the Y-shaped air filter 23 can be a stainless steel Y-shaped filter, a brass Y-shaped filter, and an aluminum Y-shaped filter.

[0022] The specific implementation manner of this embodiment is as follows:

[0023] When it is necessary to filter particulate dust in plastic particles, first open the cover body 19 to expose the inside of the separation tank, then pull the handle 27 to open the movable end of the upper net baffle 5, put the plastic particle medium to be separated into the tank body 1, then lower the movable end of the upper net baffle 5, close the cover body 19, then open the upper cover 25 of the filter box 10, pour clean water liquid into the filter box 10, close the upper cover 25, the water liquid in the filter box 10 flows downward, passes through the water outlet pipe 14, and flows out from the three-way valve 13, and flows in the pipeline 12 under the pressure output by the liquid pump 17, passes through the throttle valve 1 21 and the flowmeter 22, and flows to the four-way valve 8, then flows upward through the diversion pipe 7 to the lower shell 4 of the separation tank and the tank body 1. The solid plastic particles in the tank body 1 are soaked and cleaned by the liquid. Water liquid is input into the separation tank through the four-way valve 8 to the diversion pipe 7, so that the electrostatic force on the particles and dust disappears, and then gas is input from the air inlet pipe 11. The gas passes through the Y-shaped air filter 23 and the throttle valve 2 24 and is input into the tank body 1 to make the liquid churn, realizing the effective separation of the particles and dust. Subsequently, the excess gas in the tank body 1 is discharged from the exhaust pipe 20. When the liquid level rises to the opening of the overflow pipe 9, the liquid mixed with particulate dust flows into the overflow pipe 9 from the opening, is input into the filter box 10 through the overflow pipe 9, flows through the three filter nets 15 with different pore diameters in sequence, and then flows to the water outlet pipe 14 again, repeating the operation at the beginning of the cycle, repeatedly cleaning and soaking the plastic particles to fully separate the plastic particles from the particulate dust.

[0024] When the plastic particles and the particulate dust are fully separated, the liquid in the separation tank is discharged from the bottom of the four-way valve 8 through the diversion pipe 7, and the liquid in the filter box 10 is discharged from the bottom of the three-way valve 13 through the water outlet pipe 14. After the liquid is discharged, open the cover body 19 of the separation tank, pull the pull rod 18 upward, fold the lower net baffle 6 from the hinge, so that the separated plastic particles in the tank body 1 fall downward into the lower shell 4 and are discharged through the diversion pipe 7 for collection; then open the upper cover 25 of the filter box 10, remove each layer of support 16 and the filter net 15, and collect the particulate dust filtered out after separation; finally, clean the components in the separation tank and the filter box 10, and reassemble them after cleaning for the next separation and filtration work.

[0025] The above are only the embodiments of the present invention, and common knowledge such as specific structures and characteristics known in the solution is not described in detail here. It should be noted that for those skilled in the art, without departing from the structure of the present invention, several deformations and improvements can still be made, which should also be regarded as the protection scope of the present invention, and these will not affect the implementation effect of the present invention and the practicality of the patent. The protection scope required by this application should be based on the content of its claims, and the specific implementation manners described in the specification can be used to explain the content of the claims.

Claims

1. A plastic particle dust separation device, characterized in that: The invention comprises a tank body (1), a filter box (10), a four-way valve (8), and a three-way valve (13); the tank body (1) is provided with an upper shell (2); the upper shell (2) is hingedly connected with a cover body (19); the upper shell (2) is connected with an overflow pipe (9); the filter box (10) is provided with an opening; the filter box (10) is covered with an upper cover (25) at the opening; the upper cover (25) is composed of two cover plates hingedly connected; a through hole is opened in the center of the upper cover (25); one end of the overflow pipe (9) away from the upper shell (2) passes through the through hole of the upper cover (25); the filter box (10) is provided with a valve for filtering powder in liquid; A dust particle filtering assembly, wherein an upper net baffle (5) and a lower net baffle (6) are provided in the tank body (1), a lower shell body (4) is provided on the tank body (1), a flow guide pipe (7), an air inlet pipe (11) and a pipeline (12) are provided on the four-way valve (8), the four-way valve (8) is connected to the lower shell body (4) via the flow guide pipe (7), the four-way valve (8) is connected to the three-way valve (13) via the pipeline (12), a liquid pump (17) is provided on the pipeline (12), a water outlet pipe (14) is provided on the three-way valve (13), and the three-way valve (13) is connected to the bottom of the filter box (10) via the water outlet pipe (14).

2. A plastic particle dust separation device according to claim 1, characterized in that: The filter assembly comprises a plurality of brackets (16) arranged in a filter box (10), wherein the plurality of brackets (16) are arranged at intervals from top to bottom, and each bracket (16) is provided with a filter screen (15), wherein the aperture of the filter screen (15) in the filter box (10) decreases in sequence from top to bottom.

3. A plastic particle dust separation device according to claim 1, characterized in that: The upper net baffle (5) and the lower net baffle (6) are both composed of two hinged baffles, one end of the upper net baffle (5) is fixedly connected to the inner wall of the tank body (1), a handle (27) is provided on the movable end of the upper net baffle (5), and a pull rod (18) is movably penetrated on the fixed end of the upper net baffle (5), a support frame (26) is provided in the tank body (1), the lower net baffle (6) is placed on the support frame (26), and the lower end of the pull rod (18) is connected to the hinge of the lower net baffle (6).

4. A plastic particle dust separation device according to claim 1, characterized in that: The cover body (19) is connected to an exhaust pipe (20), and the exhaust pipe (20) is provided with an exhaust valve (3).

5. The plastic particle dust separation device according to claim 1, characterized in that: The pipeline (12) is provided with a throttle valve (21), and the throttle valve (21) is located on a side of the liquid pump (17) away from the three-way valve (13).

6. A plastic particle dust separation device according to claim 5, characterized in that: The pipeline (12) is provided with a flow meter (22), and the flow meter (22) is located on a side of the throttle valve (21) away from the liquid pump (17).

7. The plastic particle dust separation device according to claim 1, characterized in that: The air intake pipe (11) is provided with a Y-shaped air filter (23), and the air intake pipe (11) is provided with a second throttle valve (24) on one side of the Y-shaped air filter (23).

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