Dust removal device for plastic powder production

Abstract

The utility model provides a dust removal device for plastic powder production, belongs to the technical field of plastic powder production equipment, and is used for solving the technical problem that a filter screen of existing dust removal equipment for plastic production is easy to block. Comprising a supporting frame, a feeding hopper is fixed to the upper portion of the supporting frame, a vertical pipe is connected to the lower portion of the feeding hopper, a discharging pipe is connected to the lower portion of the vertical pipe, a plurality of filtering holes are formed in the vertical pipe, the outer side of the vertical pipe is rotationally sleeved with a rotating pipe, the rotating pipe is located on the outer sides of the filtering holes, an air inlet pipe and an air outlet pipe are connected to the rotating pipe, and an air blower is connected to the end of the air inlet pipe. The end of the air outlet pipe is connected with a dust collecting box, a driving motor is fixed to the side wall of the vertical pipe, and a rubber ring is fixed to an output shaft of the driving motor. According to the dust removal device for plastic powder production, the direction of airflow generated by the air blower can be changed, plastic particles can be reversely blown when the filter holes are blocked by the plastic particles, then the filter holes are prevented from being blocked, and continuous and efficient dust removal is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of plastic powder production equipment and relates to a dust removal device for plastic powder production. Background Art

[0002] Plastic powder, ultrafine plastic powder, resin powder Plastic is a synthetic high molecular compound, also known as polymer or macromolecule, also commonly known as plastic or resin, which can freely change shape and style. It is a material made by synthesizing or condensing monomer raw materials. It is composed of synthetic resin and additives such as fillers, plasticizers, stabilizers, lubricants, and colorants.

[0003] A search revealed a Chinese patent document that discloses a plastic powder dust removal device [Application Number: CN201921670740.0; Publication Number: CN210732923U]. This dust removal device includes a support base, a dust removal box, a screw conveyor, a dust collector, and a blower. The dust removal box is fixed to the top of the support base. The dust removal box has an upper conical cavity and a lower conical cavity formed inside. The upper conical cavity and the lower conical cavity are connected by a connecting hole. A first opening and a second opening are respectively formed on the inner walls on both sides of the connecting hole. A sieve plate is fixed between the inner walls on both sides of the outer ends of the first opening and the second opening. A dust hopper is fixed to the inside of the first opening through a first fixed pipe, and an air blowing pipe is fixed to the inside of the second opening through a second fixed pipe. Although the dust in the plastic particles can be blown away by the blower, the plastic particles and dust may clog the filter during the blowing process, resulting in a poor dust removal effect.

[0004] Based on this, we designed a dust removal device for plastic powder production. Utility Model Content

[0005] The purpose of this utility model is to address the above-mentioned problems in the existing technology and propose a dust removal device for plastic powder production. The technical problem to be solved by this device is: how to prevent the filter screen of the dust removal equipment from being blocked during use and ensure continuous and efficient dust removal of the dust removal equipment.

[0006] The purpose of this utility model can be achieved through the following technical solutions:

[0007] A dust removal device for plastic powder production includes a support frame, a feed hopper is fixed on the top of the support frame, and a vertical pipe is connected to the bottom of the feed hopper, and a discharge pipe is connected to the bottom of the vertical pipe. A plurality of filter holes evenly distributed around the circumference are opened on the vertical pipe, a rotating pipe is provided on the outer side of the vertical pipe, and the rotating pipe is located on the outer side of the filter hole, an air inlet pipe and an air outlet pipe are connected to the rotating pipe, a blower is connected to the end of the air inlet pipe, and a dust collection box is connected to the end of the air outlet pipe, a drive motor is fixed to the side wall of the vertical pipe, and a rubber ring is fixed to the output shaft of the drive motor, and the rubber ring is abutted against the outer side of the rotating pipe.

[0008] A discharging roller is rotatably arranged inside the discharging tube, a plurality of discharging slots evenly distributed around the circumference are provided on the discharging roller, and a discharging motor for driving the discharging roller to rotate is arranged on the outside of the discharging tube.

[0009] With the above structure, when in use, the discharge motor drives the discharge roller to rotate, which can rotate the plastic particles accumulated in the discharge trough to the bottom and drop them, thereby realizing the discharge function, and preventing the airflow from being discharged from the discharge pipe, ensuring the stability of the airflow flow direction and improving the dust removal effect.

[0010] The outer side of the vertical pipe is sleeved with an elastic ring, and the elastic ring is sleeved on the outer side of the filter hole, and the elastic ring is connected with the air inlet pipe and the air outlet pipe.

[0011] With the above structure, the elastic ring rotates synchronously during the rotation of the rotating tube, and the elastic ring can block the filter holes that are not aligned with the air inlet and outlet pipes, preventing air flow turbulence and dust accumulation inside the rotating tube, thereby improving the dust removal effect.

[0012] The upper end of the dust collecting box is threadedly connected with a cover body, a plurality of air outlet holes evenly distributed around the circumference are opened on the cover body, and a filter screen is arranged on the inner side of the cover body.

[0013] With the above structure, when in use, the air flow entering the dust box can be discharged through the filter and the air outlet, and the filter can seal the dust in the dust box, achieving a dust collection effect and facilitating centralized processing.

[0014] A rotating shaft is provided in the middle of the cover body, an extension rod is fixed to the upper end of the rotating shaft, and a fixing pin is fixed to the upper surface of the cover body, an elastic rope is connected between the fixing pin and the extension rod, and a plurality of scraping rods evenly distributed around the circumference are fixed to the lower end of the rotating shaft, and the scraping rods are in contact with the lower surface of the filter screen.

[0015] With the above structure, as the rotating tube continues to rotate, the dust collection box rotates synchronously with the rotating tube. The extension rod will be blocked by the support frame during the rotation process. At this time, the extension rod is toggled, driving the scraper rod to scrape the bottom of the filter to prevent dust from clogging the filter. Moreover, when the extension rod passes the support frame, the elastic rope will pull the extension rod and reset it.

[0016] Compared with the existing technology, this dust removal device for plastic powder production has the following advantages:

[0017] 1. Through the vertical pipe, rotating pipe, blower, drive motor and dust collection box, the direction of the airflow generated by the blower can be changed. When plastic particles clog the filter holes, the plastic particles can be blown in the opposite direction to prevent the filter holes from being blocked and achieve continuous and efficient dust removal.

[0018] 2. Through the discharge roller, discharge motor and discharge pipe, the discharge motor drives the discharge roller to rotate, which can rotate the plastic particles accumulated in the discharge trough to the bottom and fall down. The speed of the discharge is controlled by the speed of the discharge motor, and the air flow can be prevented from being discharged from the discharge pipe while discharging, ensuring the stability of the air flow direction and improving the dust removal effect.

[0019] 3. The elastic ring can block the filter holes that are not aligned with the air inlet and outlet pipes, prevent air flow turbulence, prevent dust accumulation on the inside of the rotating tube, and improve the dust removal effect.

[0020] 4. Through the extension rod, scraper rod, elastic rope, fixed pin and rotating shaft, the extension rod will be toggled by the support frame during the rotation process, and the scraper rod will be driven by the rotating shaft to scrape the bottom of the filter to prevent dust from clogging the filter, ensure the circulation effect of the airflow, and further improve the continuous dust removal effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0022] Figure 2 It is a structural diagram of some components in the utility model;

[0023] Figure 3 This is a schematic cross-sectional view of the vertical pipe in the present utility model;

[0024] Figure 4 This is a schematic structural diagram of the elastic ring in the utility model;

[0025] Figure 5 This is a schematic diagram of the upper structure of the cover body in the utility model;

[0026] Figure 6 It is a schematic diagram of the lower structure of the cover body in the utility model.

[0027] In the figure: 1. Support frame; 2. Feed hopper; 3. Vertical pipe; 4. Discharge pipe; 5. Filter hole; 6. Rotating pipe; 7. Air inlet pipe; 8. Air outlet pipe; 9. Blower; 10. Dust box; 11. Discharge roller; 12. Discharge motor; 13. Discharge trough; 14. Elastic ring; 15. Cover; 16. Air outlet; 17. Filter; 18. Rotating shaft; 19. Extension rod; 20. Scraper rod; 21. Fixing pin; 22. Elastic rope; 23. Drive motor; 24. Rubber ring. DETAILED DESCRIPTION

[0028] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0029] The following describes in detail embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. 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.

[0030] In the description of this patent, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings. They are only for the convenience of describing this patent and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on this patent.

[0031] In the description of this patent, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," and "set" should be understood in a broad sense. For example, they can refer to fixed connection or set, detachable connection or set, or integral connection or set. Those skilled in the art will understand the specific meanings of the above terms in this patent based on the specific circumstances.

[0032] See also Figure 1-6 The present embodiment provides a dust removal device for plastic powder production, including a support frame 1, a feed hopper 2 is fixed above the support frame 1, and a vertical pipe 3 is connected to the bottom of the feed hopper 2, and a discharge pipe 4 is connected to the bottom of the vertical pipe 3. A plurality of filter holes 5 uniformly distributed around the circumference are opened on the vertical pipe 3, and a rotating pipe 6 is rotatably sleeved on the outer side of the vertical pipe 3, and the rotating pipe 6 is located on the outer side of the filter hole 5, and an air inlet pipe 7 and an air outlet pipe 8 are connected to the rotating pipe 6, and a blower 9 is connected to the end of the air inlet pipe 7, and a dust collecting box 10 is connected to the end of the air outlet pipe 8. A driving motor 23 is fixed to the side wall of the vertical pipe 3, and a rubber ring 24 is fixed to the output shaft of the driving motor 23, and the rubber ring 24 is abutted against the outer side of the rotating pipe 6.

[0033] A discharging roller 11 is rotatably provided inside the discharging pipe 4, and a plurality of discharging grooves 13 evenly distributed around the circumference are provided on the discharging roller 11, and a discharging motor 12 for driving the discharging roller 11 to rotate is provided on the outside of the discharging pipe 4; when in use, the discharging motor 12 drives the discharging roller 11 to rotate, which can rotate the plastic particles accumulated in the discharging groove 13 to the bottom and fall, thereby realizing the discharging function, and can prevent the airflow from being discharged from the discharging pipe 4, thereby ensuring the stability of the airflow flow direction and improving the dust removal effect.

[0034] An elastic ring 14 is sleeved on the outer side of the vertical pipe 3, and the elastic ring 14 is sleeved on the outer side of the filter hole 5. The elastic ring 14 is connected to the air inlet pipe 7 and the air outlet pipe 8. During the rotation of the rotating tube 6, the elastic ring 14 rotates synchronously, and the elastic ring 14 can block the filter holes 5 that are not aligned with the air inlet pipe 7 and the air outlet pipe 8, prevent air flow turbulence, prevent dust accumulation inside the rotating tube 6, and improve the dust removal effect.

[0035] The upper end of the dust box 10 is threadedly connected to a cover 15, which is provided with a plurality of air outlet holes 16 evenly distributed around the circumference, and a filter 17 is provided on the inner side of the cover 15; when in use, the air flow entering the dust box 10 can be discharged through the filter 17 and the air outlet holes 16, and the filter 17 can seal the dust in the dust box 10, thereby achieving a dust collection effect and facilitating centralized processing.

[0036] A rotating shaft 18 is provided in the middle of the cover body 15, and an extension rod 19 is fixed to the upper end of the rotating shaft 18, and a fixing pin 21 is fixed to the upper surface of the cover body 15, and an elastic rope 22 is connected between the fixing pin 21 and the extension rod 19, and a plurality of scraping rods 20 evenly distributed around the circumference are fixed to the lower end of the rotating shaft 18, and the scraping rods 20 are in contact with the lower surface of the filter 17; as the rotating tube 6 continues to rotate, the dust collecting box 10 rotates synchronously with the rotating tube 6, and the extension rod 19 will be blocked by the support frame 1 during the rotation process. At this time, the extension rod 19 is pulled, driving the scraper rod 20 to scrape the bottom of the filter 17 to prevent dust from clogging the filter 17, and when the extension rod 19 passes over the support frame 1, the elastic rope 22 will pull the extension rod 19 and reset it.

[0037] In this embodiment, the above-mentioned fixing methods are the most commonly used fixing connection methods in this field, such as welding, bolt connection, etc.; the above-mentioned electrical components such as the drive motor 23, the discharge motor 12 and the blower 9, etc., are all existing technology products and can be directly purchased and used in the market. The specific principles will not be repeated here.

[0038] The working principle of this utility model:

[0039] During use, the granular plastic raw material is put into the feed hopper 2, and the plastic particles will fall downward along the vertical pipe 3. During the falling process, they are affected by the airflow generated by the blower 9, and the dust therein will pass through the filter holes 5 and move to the dust collecting box 10, while the plastic particles cannot pass through the filter holes 5 and can only continue to fall. Moreover, the rotating tube 6 is driven by the driving motor 23 to rotate slowly and continuously, so that the direction of the airflow generated by the blower 9 gradually changes. If the plastic particles are blown by the airflow and block the filter holes 5, as the rotating tube 6 rotates, the airflow direction changes and the plastic particles blocked in the filter holes 5 will be blown into the vertical pipe 3 again, which can effectively prevent the plastic particles from clogging the filter holes 5. After the plastic particles enter the discharge pipe 4, the discharge motor 12 drives the discharge roller 11 to rotate, which can rotate the plastic particles accumulated in the discharge chute 13 to the bottom and fall. It realizes the function of discharging materials and can prevent the air flow from being discharged from the discharge pipe 4, thereby ensuring the stable flow direction of the air flow and improving the dust removal effect. Moreover, the elastic ring 14 can block the filter holes 5 that are not aligned with the air inlet pipe 7 and the air outlet pipe 8, thereby preventing the air flow from being turbulent and preventing dust from accumulating inside the rotating tube 6, thereby further improving the dust removal effect. In addition, as the rotating tube 6 continues to rotate, the dust collecting box 10 rotates synchronously with the rotating tube 6. When the extension rod 19 is blocked by the support frame 1 during the rotation process, the extension rod 19 is moved at this time, driving the scraper rod 20 to scrape the bottom of the filter 17 to prevent dust from clogging the filter 17. Moreover, when the extension rod 19 passes over the support frame 1, the elastic rope 22 will pull the extension rod 19 and reset it, thereby realizing the effect of automatically cleaning the filter 17 and preventing dust from clogging the filter 17, thereby ensuring that the device can continuously and efficiently perform dust removal operations.

[0040] The above describes in detail the preferred embodiments of this patent, but this patent is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in this field without departing from the purpose of this patent.

Claims

1. A dust removal device for plastic powder production, comprising a support frame (1), characterized in that: A feed hopper (2) is fixed above the support frame (1), and a vertical pipe (3) is connected below the feed hopper (2), and a discharge pipe (4) is connected below the vertical pipe (3). A plurality of filter holes (5) uniformly distributed around the circumference are provided on the vertical pipe (3). A rotating pipe (6) is rotatably sleeved on the outer side of the vertical pipe (3), and the rotating pipe (6) is located outside the filter holes (5). An air inlet pipe (7) and an air outlet pipe (8) are connected to the rotating pipe (6). The end of the air inlet pipe (7) is connected to a blower (9), and the end of the air outlet pipe (8) is connected to a dust collecting box (10). A driving motor (23) is fixed on the side wall of the vertical pipe (3), and a rubber ring (24) is fixed on the output shaft of the driving motor (23), and the rubber ring (24) abuts against the outer side of the rotating pipe (6).

2. A dust removal device for plastic powder production according to claim 1, characterized in that: A discharging roller (11) is rotatably provided inside the discharging pipe (4), a plurality of discharging slots (13) evenly distributed around the circumference of the discharging roller (11) are provided on the discharging pipe (4), and a discharging motor (12) for driving the discharging roller (11) to rotate is provided on the outside of the discharging pipe (4).

3. A dust removal device for plastic powder production according to claim 1 or 2, characterized in that: An elastic ring (14) is sleeved on the outer side of the vertical pipe (3), and the elastic ring (14) is sleeved on the outer side of the filter hole (5). The elastic ring (14) is connected to the air inlet pipe (7) and the air outlet pipe (8).

4. A dust removal device for plastic powder production according to claim 1, characterized in that: The upper end of the dust collecting box (10) is threadedly connected to a cover body (15), a plurality of air outlet holes (16) evenly distributed around the circumference are provided on the cover body (15), and a filter screen (17) is provided on the inner side of the cover body (15).

5. A dust removal device for plastic powder production according to claim 4, characterized in that: A rotating shaft (18) is provided in the middle of the cover body (15), an extension rod (19) is fixed to the upper end of the rotating shaft (18), and a fixing pin (21) is fixed to the upper surface of the cover body (15), an elastic rope (22) is connected between the fixing pin (21) and the extension rod (19), and a plurality of scraping rods (20) evenly distributed around the circumference are fixed to the lower end of the rotating shaft (18), and the scraping rods (20) are in contact with the lower surface of the filter screen (17).

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