A highly efficient device for removing metal impurities from plastic powder

Abstract

The present invention provides a highly efficient plastic powder metal impurity removal device, comprising a base, a box, a screening bin, a blower, a material transfer box, a material collection box, a first impurity collection box, and a second impurity collection box. The upper end of the box is provided with a plurality of powder outlet holes, the lower end of the box is provided with a plurality of impurity removal holes, the left side of the box is provided with an air inlet, the left side of the air inlet is provided with a blower, the box is provided with a screening bin, the top of the box is connected with a powder outlet pipeline, the right side of the powder outlet pipeline is provided with a material transfer box, the material transfer box is provided with a removal device, the lower part of the material transfer box is provided with a material collection box, and the right side of the material collection box is provided with a first impurity collection box. The highly efficient plastic powder metal impurity removal device of the present invention utilizes the different specific gravities of plastic powder and metal impurities, utilizes the combination of airflow separation and adsorption separation to separate metal impurities, and has good separation effect and high separation efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of auxiliary equipment for plastic powder production, and in particular to a high-efficiency plastic powder metal impurity removal device. Background Art

[0002] Plastic powder coating is a kind of formula material with synthetic resin as base material, pigment and filler. It is a new type of decorative material that has developed rapidly in recent years. It has the characteristics of energy saving, low pollution, high efficiency and high performance. As a solvent-free coating, it has high coating efficiency, good anti-corrosion performance, can form a film in one time, and is easy to store and transport. It is becoming increasingly popular.

[0003] In the process of producing plastic powder, plastic flakes or plastic pellets are usually ground into plastic powder, but metal impurities are often mixed in during the grinding process. Existing devices for removing metal impurities generally use magnets for adsorption, but relying solely on magnets for adsorption not only fails to remove them completely, but also causes metal impurities to be mixed into the plastic powder again, resulting in poor cleaning effect and affecting the quality of the plastic powder. Summary of the invention

[0004] The purpose of the present invention is to overcome the deficiencies of the above-mentioned prior art and provide a high-efficiency plastic powder metal impurity removal device, which utilizes the different specific gravities of plastic powder and metal impurities and combines air flow separation with adsorption separation to separate metal impurities with good separation effect and high separation efficiency.

[0005] To achieve the above-mentioned purpose, the present invention proposes a high-efficiency plastic powder metal impurity removal device, comprising a base, a box body, a screening bin, a blower, a material transfer box, a material collection box, a first impurity collection box, and a second impurity collection box. The base is provided with a box body, the upper end of the box body is provided with a plurality of powder outlet holes, the lower end of the box body is provided with a plurality of impurity removal holes, the right side of the box body is provided with a box door, the outer edge of the box door is provided with a sealing strip, the left side of the box body is provided with an air inlet, the left side of the air inlet is provided with a blower, the box body is provided with a screening bin, the side wall of the screening bin is provided with a plurality of ventilation holes, the right side of the screening bin is provided with a feeding door, and the box body A powder discharge pipe is connected at the top, a material transfer box is provided on the right side of the powder discharge pipe, a rejection device is provided in the material transfer box, the rejection device comprises a rotating shaft, a hollow magnet, an adsorption tube, and a rotating motor, the rotating motor is located above the material transfer box, a rotating shaft is provided at the lower end of the rotating motor, the hollow magnet is sleeved on the rotating shaft, the adsorption tube is sleeved on the hollow magnet, scrapers are provided on both sides of the upper end of the adsorption tube, a material collecting box is provided below the material transfer box, a first impurity collecting box is provided on the right side of the material collecting box, a de-impurity pipe is connected below the box body, a second impurity collecting box is provided on the right side of the de-impurity pipe.

[0006] Preferably, the air inlet is arranged obliquely to the lower right, the inner diameter of the air inlet gradually increases from top to bottom, the left end of the air inlet is sleeved with an air inlet pipe, the air inlet pipe is a retractable hose, and the left end of the air inlet pipe is connected to the blower.

[0007] Preferably, a discharge door is provided on the lower side of the material transfer box, a discharge handrail is provided at the lower end of the discharge door, a bracket is provided below the discharge door, the bracket is located on the right side of the base, a track is provided on the bracket, a baffle is provided on the left side of the track, and a material collection box is provided on the right side of the baffle.

[0008] Preferably, a scraper plate is provided at one end of the scraper board, the scraper plate is semicircular, the scraper plates on both sides are connected to form a circle, the inner diameter of the circle matches the outer diameter of the adsorption tube, and a cylinder is provided at one end of the scraper board, and the cylinder is a double-acting cylinder.

[0009] Preferably, a rotating tube is provided at the lower end of the adsorption tube, and the rotating tube includes a rotating inner tube and a rotating outer tube. The inner wall of the rotating inner tube is provided with a clamping ring. The lower end of the adsorption tube is provided with a clamping groove. The clamping groove is in a circular shape. The clamping ring matches the clamping groove. A sealing ring is provided in the clamping groove. The rotating outer tube is connected to the inner wall of the rotating inner tube. A material receiving groove is provided in the rotating outer tube. The setting of the rotating tube prevents the outer wall of the adsorption tube from absorbing too many metal impurities and then falling into the bottom of the material transfer box and continuing to mix into the plastic powder.

[0010] Beneficial effects of the present invention: The present invention arranges a blower, a box body, and a screening bin. The air in the blower enters the box body through the air inlet to disperse the material to be separated. The metal impurities with heavy specific gravity fall into the bottom of the screening bin and enter the second impurity collection box through the through hole, the impurity removal hole, and the impurity removal pipeline. The plastic powder with light specific gravity is brought to the top of the screening bin by the air flow and enters the material transfer box through the through hole, the powder outlet hole, and the powder outlet pipeline. A rejection device is arranged in the material transfer box, and the metal impurities are further separated by utilizing the adsorption of the metal impurities and the magnet, so that the separation effect is good and the separation efficiency is high.

[0011] The features and advantages of the present invention will be described in detail through embodiments in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of a highly efficient plastic powder metal impurity removal device of the present invention;

[0013] Figure 2 It is a schematic diagram of the structure of the rejection device;

[0014] Figure 3 It is an exploded view of the adsorption tube and the rotating tube;

[0015] Figure 4 It is a structural schematic diagram of the scraper plate.

[0016] In the figure: 1-base, 2-box, 3-screening bin, 4-blower, 5-material transfer box, 6-material collection box, 7-first impurity collection box, 8-second impurity collection box, 21-powder outlet, 22-impurity removal hole, 23-box door, 24-air inlet, 25-powder outlet pipe, 26-impurity removal pipe, 31-ventilation hole, 32-feeding door, 51-removal device, 52-discharging door, 53-rotating tube, 2 31-sealing strip, 241-air duct, 511-rotating shaft, 512-hollow magnet, 513-adsorption tube, 514-rotating motor, 515-scraper plate, 516-scraper plate, 517-cylinder, 521-discharging handrail, 522-bracket, 523-track, 524-baffle, 531-rotating inner tube, 532-rotating outer tube, 533-clamp ring, 534-cage, 535-receiving trough. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention is further described in detail below through the accompanying drawings and embodiments. However, it should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the scope of the present invention. In addition, in the following description, the description of known structures and technologies is omitted to avoid unnecessary confusion of the concept of the present invention.

[0018] like Figure 1 and Figure 4As shown, the present invention provides a high-efficiency plastic powder metal impurity removal device, including a base 1, a box body 2, a screening bin 3, a blower 4, a material transfer box 5, a material collection box 6, a first impurity collection box 7, and a second impurity collection box 8. The base 1 is provided with a box body 2, the upper end of the box body 2 is provided with a plurality of powder outlet holes 21, the lower end of the box body 2 is provided with a plurality of impurity removal holes 22, the right side of the box body 2 is provided with a box door 23, the outer edge of the box door 23 is provided with a sealing strip 231, the left side of the box body 2 is provided with an air inlet 24, the left side of the air inlet 24 is provided with a blower 4, the box body 2 is provided with a screening bin 3, the side wall of the screening bin 3 is provided with a plurality of ventilation holes 31, and the right side of the screening bin 3 is provided with a feed door 32, a powder outlet pipe 25 is connected to the top of the box body 2, a material transfer box 5 is provided on the right side of the powder outlet pipe 25, a rejection device 51 is provided in the material transfer box 5, the rejection device 51 comprises a rotating shaft 511, a hollow magnet 512, an adsorption tube 513, and a rotating motor 514, the rotating motor 514 is located above the material transfer box 5, a rotating shaft 511 is provided at the lower end of the rotating motor 514, the hollow magnet 512 is sleeved on the rotating shaft 511, the adsorption tube 513 is sleeved on the hollow magnet 512, scrapers 515 are provided on both sides of the upper end of the adsorption tube 513, a material collecting box 6 is provided below the material transfer box 5, and a first impurity collecting box 6 is provided on the right side of the material collecting box 6 The material collecting box 7 is provided with a cleaning pipe 26 at the bottom of the box body 2, and a second impurity collecting box 8 is provided on the right side of the cleaning pipe 26. The air inlet 24 is arranged obliquely to the lower right, and the inner diameter of the air inlet 24 gradually increases from the top to the bottom. The left end of the air inlet 24 is sleeved with an air inlet pipe 241, and the air inlet pipe 241 is a retractable hose. The left end of the air inlet pipe 241 is connected to the blower 4. A discharge door 52 is provided at the lower side of the material transfer box 5, and a discharge handrail 521 is provided at the lower end of the discharge door 52. A bracket 522 is provided below the discharge door 52, and the bracket 522 is located on the right side of the base 1. A track 523 is provided on the bracket 522, and a track 523 is provided on the left side. Baffle 524, a material collecting box 6 is arranged on the right side of the baffle 524, a scraper plate 516 is arranged at one end of the scraper plate 515, the scraper plate 516 is semicircular, and the scraper plates 516 on both sides are connected to form a circle, the inner diameter of the circle matches the outer diameter of the adsorption tube 513, a cylinder 517 is arranged at one end of the scraper plate 515, and the cylinder 517 is a double-acting cylinder, a rotating tube 53 is arranged at the lower end of the adsorption tube 513, the rotating tube 53 includes a rotating inner tube 531 and a rotating outer tube 532, a retaining ring 533 is arranged on the inner wall of the rotating inner tube 531, a clamping groove 534 is arranged at the lower end of the adsorption tube 513, the clamping groove 534 is annular, and the retaining ring 533 matches the clamping groove 534,A sealing ring is provided in the clamping groove 534, the rotating outer tube 532 is connected to the inner wall of the rotating inner tube 531, and a material receiving groove 535 is provided in the rotating outer tube 532.

[0019] Working process of the present invention:

[0020] In the working process of the high-efficiency plastic powder metal impurity removal device of the present invention, firstly, the lower end of the air connection pipe 241 is connected to the air connection port 24, the upper end of the air connection pipe 241 is connected to the blower 4, the wind speed of the blower 4 is adjusted to a suitable speed, and then the blower 4 is turned on, and the air flow in the blower 4 is introduced into the box body 2 through the air connection pipe 241 to blow away the materials in the screening bin 3, and the metal impurities with heavy specific gravity fall into the bottom of the screening bin 3, and enter the second impurity collection box 8 through the through hole 31, the impurity removal hole 22, and the impurity removal pipeline 26, and the metal impurities with light specific gravity fall into the top of the screening bin 3, and enter the material transfer box 5 through the through hole 31, the powder outlet hole 21, and the powder outlet pipeline 25. At the same time, the rotating motor 514 is turned on, and the adsorption tube 513 with a hollow magnet 512 built in is rotated. In the process, plastic powder is introduced into the powder outlet pipe 25 for separation. If metal impurities are mixed in the plastic powder, they are adsorbed on the outer wall of the adsorption tube 513 at this time. After the adsorption is completed, the material collecting box 6 is placed directly below the material transfer box 5, and the discharge door 52 is opened. The separated plastic powder falls into the material collecting box 6 due to gravity, and then the material collecting box 6 is removed, and the first impurity collection box 7 is placed directly below the material transfer box 5. At this time, the rotating tube 53 is removed from the adsorption tube 513, and the rotating tube 53 is turned downward to facilitate the metal impurities collected in the material receiving trough 535 to fall into the first impurity collection box 7, and then the cylinder 517 is started to push the scraper plate 515 to move downward, so that the impurities adsorbed on the adsorption tube 513 are scraped off and fall into the first impurity collection box 7, and the metal impurities are completely removed.

[0021] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modification, equivalent substitution or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An efficient plastic powder metal impurity removal device, characterized in that: The invention comprises a base (1), a box body (2), a screening bin (3), a blower (4), a material transfer box (5), a material collection box (6), a first impurity collection box (7), and a second impurity collection box (8). The base (1) is provided with a box body (2), the upper end of the box body (2) is provided with a plurality of powder outlet holes (21), the lower end of the box body (2) is provided with a plurality of impurity removal holes (22), the right side of the box body (2) is provided with a box door (23), the outer edge of the box door (23) is provided with a sealing strip (231), the left side of the box body (2) is provided with an air inlet (24), the left side of the air inlet (24) is provided with a blower (4), and the box body ( 2) is provided with a screening bin (3), a side wall of the screening bin (3) is provided with a plurality of ventilation holes (31), a feeding door (32) is provided on the right side of the screening bin (3), a powder outlet pipe (25) is connected to the top of the box body (2), a material transfer box (5) is provided on the right side of the powder outlet pipe (25), a rejection device (51) is provided in the material transfer box (5), the rejection device (51) comprises a rotating shaft (511), a hollow magnet (512), an adsorption tube (513), and a rotating motor (514), the rotating motor (514) is located above the material transfer box (5), and a rotating shaft is provided at the lower end of the rotating motor (514). (511), the hollow magnet (512) is sleeved on the rotating shaft (511), the adsorption tube (513) is sleeved on the hollow magnet (512), and scraper plates (515) are provided on both sides of the upper end of the adsorption tube (513), a material collection box (6) is provided below the material transfer box (5), and a first impurity collection box (7) is provided on the right side of the material collection box (6), a de-impurity pipe (26) is connected to the bottom of the box body (2), and a second impurity collection box (8) is provided on the right side of the de-impurity pipe (26), the air inlet (24) is arranged obliquely to the lower right, and the inner diameter of the air inlet (24) gradually increases from the top to the bottom, and the The left end of the air inlet (24) is sleeved with an air inlet pipe (241), the air inlet pipe (241) is a retractable hose, the left end of the air inlet pipe (241) is connected to the blower (4), a discharge door (52) is provided at the lower side of the material transfer box (5), a discharge handrail (521) is provided at the lower end of the discharge door (52), a bracket (522) is provided below the discharge door (52), the bracket (522) is located on the right side of the base (1), a track (523) is provided on the bracket (522), a baffle (524) is provided on the left side of the track (523), and a material collection box (6) is provided on the right side of the baffle (524).

2. A highly efficient plastic powder metal impurity removal device as claimed in claim 1, characterized in that: A scraper disc (516) is provided at one end of the scraper plate (515), and the scraper disc (516) is semicircular. The scraper discs (516) on both sides are connected to form a circle, and the inner diameter of the circle matches the outer diameter of the adsorption tube (513). A cylinder (517) is provided at one end of the scraper plate (515), and the cylinder (517) is a double-acting cylinder.

3. The high-efficiency plastic powder metal impurity removal device according to claim 1, characterized in that: A rotating tube (53) is provided at the lower end of the adsorption tube (513), the rotating tube (53) comprising a rotating inner tube (531) and a rotating outer tube (532), the inner wall of the rotating inner tube (531) being provided with a clamping ring (533), a clamping groove (534) being provided at the lower end of the adsorption tube (513), the clamping groove (534) being in a circular ring shape, the clamping ring (533) matching the clamping groove (534), a sealing ring being provided in the clamping groove (534), the rotating outer tube (532) being connected to the inner wall of the rotating inner tube (531), and a material receiving groove (535) being provided in the rotating outer tube (532).

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