Device for screening superfine rubber powder by utilizing airflow

Abstract

The utility model relates to the technical field of airflow screening of superfine rubber powder, and discloses a device for screening superfine rubber powder by utilizing airflow, which comprises a screening tank, a feed port is arranged above the screening tank, and a first discharge port is arranged in the middle of the bottom of the screening tank. According to the superfine glue powder processing device, the fan is started and can blow air into the processing box, so that a screening plate in a rotating mechanism arranged in the processing box can be blown to rotate, when the screening plate rotates, superfine glue powder falling on the screening plate can rotate, and some fine superfine glue powder can fall off from the screening plate; the materials are discharged from the blanking notch and the first discharge hole; the ultra-micro rubber powder with large particles can fall to the bottom of the previous screening plate under the rotation of the screening plates, and can fall to the first inclined plate along the rotation track of the previous screening plate, so that the ultra-micro rubber powder can slide to the second discharge port from the first inclined plate, and the ultra-micro rubber powder can be screened; the method is suitable for wide popularization and use.

Description

Technical Field

[0001] The utility model belongs to the technical field of airflow screening of ultrafine rubber powder, in particular to a device for screening ultrafine rubber powder by airflow. Background Art

[0002] Ultrafine rubber powder refers to rubber powder with a particle diameter between 1-2000 microns, and its particle size range is wider than that of ordinary rubber powder. It is usually made from recycled rubber materials such as old tires and industrial waste through crushing and screening processes. It has good elasticity, sealing, wear resistance and hydrolysis resistance.

[0003] The production process of ultrafine rubber powder mainly includes raw material pretreatment, crushing, screening, roasting and other links. Among them, the raw material pretreatment stage is the key. By physically and chemically treating recycled rubber such as waste tires to remove impurities and oil, the quality and performance of rubber powder can be effectively improved.

[0004] However, in the production process of the existing ultrafine glue powder, there are different particle sizes. At this time, it is often necessary to screen it through screening equipment. When the existing screening equipment screens the ultrafine glue powder, it often screens the smaller ultrafine glue powder. At this time, the machine can be opened to take out the larger ultrafine glue powder, which causes more trouble.

[0005] In view of this, the present utility model is proposed. Utility Model Content

[0006] In order to solve the above technical problems, the basic concept of the technical solution adopted by the utility model is:

[0007] A device for screening ultrafine rubber powder by airflow, comprising a screening tank, a feed port is arranged on the top of the screening tank, a first discharge port is opened in the middle of the bottom of the screening tank, a second discharge port is opened on one side wall of the screening tank, four supporting legs symmetrical to each other are fixedly installed on the bottom of the screening tank, a processing box is arranged at the first discharge port in the inner cavity of the screening tank, and a fan is arranged on the side of the inner cavity of the screening tank opposite to the processing box and the feed port;

[0008] A rotating mechanism is arranged in the processing box, and a vibrating mechanism is arranged on one side of the processing box close to the second discharge port. The rotating mechanism is used to transport and screen the ultrafine rubber powder, and the rotating mechanism can drive the vibrating mechanism. The vibrating mechanism is used to better transport the screened ultrafine rubber powder. By preventing the ultrafine glue powder to be screened from entering the screening tank from the feed port, the ultrafine glue powder can enter the processing box along the second inclined plate. At the same time, by starting the fan, the fan can blow air into the processing box, thereby blowing the screening plate in the rotating mechanism arranged in the processing box to rotate. When the screening plate rotates, the ultrafine glue powder falling on the screening plate will be able to rotate. At this time, some fine ultrafine glue powder will be able to fall from the screening plate and be discharged from the unloading slot and the first discharge port; and the ultrafine glue powder with larger particles will be able to fall to the bottom of the previous screening plate under the rotation of the screening plate, and will be able to fall on the first inclined plate along the rotation trajectory of the previous screening plate, so it can slide from the first inclined plate to the second discharge port, thereby realizing the screening of the ultrafine glue powder.

[0009] As a preferred embodiment of the utility model, a first rectangular notch is provided on one side wall of the processing box near the feed port, a second rectangular notch is provided on one side wall of the processing box near the second discharge port, and a discharge notch is provided on one side wall of the processing box near the first discharge port. The opening positions of the first rectangular notch, the second rectangular notch and the discharge notch are determined.

[0010] As a preferred embodiment of the utility model, the processing box is provided with a plurality of inclined blocks at the bottom of the material discharge slot, and the inner wall of the processing box is provided with a second inclined plate, one end of the second inclined plate is fixedly connected to the screening tank, and the other end of the second inclined plate is fixedly connected to the first rectangular slot opened on the processing box. The installation positions of the second inclined plate and the inclined blocks are determined.

[0011] As a preferred embodiment of the utility model, the rotating mechanism includes a second rotating rod, both ends of the second rotating rod are provided with second bearings, and the two second bearings are installed on the inner wall of the processing box, and four screening plates arranged in a circumferential distribution are fixedly installed on the second rotating rod. The installation position and components of the rotating mechanism are determined.

[0012] As a preferred embodiment of the utility model, the vibration mechanism includes a first inclined plate, one end of the first inclined plate is connected to a first rotating rod, both ends of the first rotating rod are provided with first bearings, two first bearings are installed on the inner wall of the second discharge port, and the other end of the first inclined plate is movable through the second rectangular notch and is located on the inner wall of the processing box. The installation position and components of the vibration mechanism are determined.

[0013] As a preferred embodiment of the utility model, two mutually symmetrical rectangular plug rods are fitted and installed at the bottom of one end of the first inclined plate close to the rotating mechanism, and rectangular plug tubes are plugged into the bottom of the two rectangular plug rods. Return springs are fixedly installed in the inner cavities of the two rectangular plug tubes, and the other ends of the two return springs are fixedly connected to the rectangular plug rods, and the bottoms of the two rectangular plug tubes are installed on the processing box. It is ensured that when the screening plate rotates, because one end of the first inclined plate is set for rotation, the screening plate can press down the first inclined plate to squeeze the rectangular plug rods into the rectangular plug tubes when it rotates, until the screening plate leaves the top of the first inclined plate. At this time, the first inclined plate can be reset with the assistance of the return spring, so that the vibration effect can be achieved, so that the efficiency is higher when feeding larger ultra-fine rubber powder.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] The utility model prevents the ultrafine glue powder to be screened from entering the screening tank from the feed inlet, and the ultrafine glue powder can enter the processing box along the second inclined plate. At the same time, by starting the fan, the fan can blow air into the processing box, so that the screening plate in the rotating mechanism arranged in the processing box can be blown to rotate. When the screening plate rotates, the ultrafine glue powder falling on the screening plate will be able to rotate. At this time, some fine ultrafine glue powder will be able to fall from the screening plate and be discharged from the unloading groove and the first discharge port; and the ultrafine glue powder with larger particles will be able to fall to the bottom of the previous screening plate under the rotation of the screening plate, and will be able to fall on the first inclined plate along the rotation trajectory of the previous screening plate, so that it can slide from the first inclined plate to the second discharge port, so that the ultrafine glue powder can be screened, and the screening is more convenient.

[0016] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In the attached picture:

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the right side structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the utility model when viewed from above;

[0021] Figure 4 This is a schematic diagram of the cross-sectional structure of the screening tank of the utility model;

[0022] Figure 5 This is a schematic diagram of the left side cross-sectional structure of the screening tank of the utility model;

[0023] Figure 6 This is a schematic diagram of the cross-sectional structure of the processing box of the utility model;

[0024] Figure 7 This is a schematic diagram of the side sectional structure of the processing box of the utility model;

[0025] Figure 8 This is a schematic diagram of the structure of the rotating mechanism and the vibrating mechanism of the utility model;

[0026] Fig. 9 This is a schematic diagram of the structure of a rectangular plug-in tube of the utility model.

[0027] In the figure: 1. screening tank; 2. supporting legs; 3. feed port; 4. first discharge port; 5. second discharge port; 6. first bearing; 7. first rotating rod; 8. first inclined plate; 9. processing box; 10. second inclined plate; 11. first rectangular notch; 12. second rectangular notch; 13. fan; 14. second bearing; 15. second rotating rod; 16. screening plate; 17. discharge notch; 18. tilting block; 19. rectangular plug-in rod; 20. rectangular plug-in cylinder; 21. reset spring. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model.

[0029] like Figures 1 to 9As shown, a device for screening ultrafine rubber powder by airflow comprises a screening tank 1, a feeding port 3 is arranged above the screening tank 1, a first discharging port 4 is opened in the middle of the bottom of the screening tank 1, a second discharging port 5 is opened on one side wall of the screening tank 1, four supporting legs 2 which are symmetrical to each other are fixedly installed on the bottom of the screening tank 1, a processing box 9 is arranged at the first discharging port 4 in the inner cavity of the screening tank 1, and a fan 13 is arranged on the side of the inner cavity of the screening tank 1 opposite to the processing box 9 and the feeding port 3; a rotating mechanism is arranged in the processing box 9, and a vibrating mechanism is arranged on the side of the processing box 9 close to the second discharging port 5, the rotating mechanism is used for conveying and screening the ultrafine rubber powder, and the rotating mechanism can drive the vibrating mechanism, and the vibrating mechanism is used for better conveying the screened ultrafine rubber powder. By preventing the ultrafine glue powder to be screened from entering the screening tank 1 from the feed port 3, the ultrafine glue powder can enter the processing box 9 along the second inclined plate 10. At the same time, by starting the fan 13, the fan can blow air into the processing box 9, thereby blowing the screening plate 16 in the rotating mechanism arranged in the processing box 9 to rotate. When the screening plate 16 rotates, the ultrafine glue powder falling on the screening plate 16 will be able to rotate. At this time, some fine ultrafine glue powder will be able to fall from the screening plate 16 and be discharged from the unloading slot 17 and the first discharge port 4; and the ultrafine glue powder with larger particles will be able to fall to the bottom of the previous screening plate 16 under the rotation of the screening plate 16, and will be able to fall on the first inclined plate 8 along the rotation trajectory of the previous screening plate 16, so it can slide from the first inclined plate 8 to the second discharge port 5, so that the ultrafine glue powder can be screened.

[0030] In a specific embodiment, a first rectangular notch 11 is provided on one side wall of the processing box 9 near the feed port 3, a second rectangular notch 12 is provided on one side wall of the processing box 9 near the second discharge port 5, and a discharge notch 17 is provided on one side wall of the processing box 9 near the first discharge port 4. In this configuration, the positions of the first rectangular notch 11, the second rectangular notch 12, and the discharge notch 17 are determined.

[0031] Furthermore, the processing box 9 is provided with a plurality of inclined blocks 18 at the bottom of the material discharge slot 17, and a second inclined plate 10 is provided on the inner wall of the processing box 9, one end of the second inclined plate 10 is fixedly connected to the screening tank 1, and the other end of the second inclined plate 10 is fixedly connected to the first rectangular slot 11 opened on the processing box 9. In this setting, the installation positions of the second inclined plate 10 and the inclined blocks 18 are determined.

[0032] Further, the rotating mechanism includes a second rotating rod 15, both ends of which are provided with second bearings 14, and the two second bearings 14 are installed on the inner wall of the processing box 9, and four screening plates 16 arranged in a circumferential distribution are fixedly installed on the second rotating rod 15. In this setting, the installation position and components of the rotating mechanism are determined.

[0033] Further, the vibration mechanism includes a first inclined plate 8, one end of the first inclined plate 8 is connected to a first rotating rod 7, both ends of the first rotating rod 7 are provided with first bearings 6, two first bearings 6 are installed on the inner wall of the second discharge port 5, and the other end of the first inclined plate 8 is movable through the second rectangular notch 12 and is located on the inner wall of the processing box 9. In this setting, the installation position and components of the vibration mechanism are determined.

[0034] Furthermore, two mutually symmetrical rectangular plug rods 19 are fitted and installed at the bottom of one end of the first inclined plate 8 close to the rotating mechanism, and rectangular plug tubes 20 are plugged at the bottom of the two rectangular plug rods 19. Return springs 21 are fixedly installed in the inner cavities of the two rectangular plug tubes 20, and the other ends of the two return springs 21 are fixedly connected to the rectangular plug rods 19, and the bottoms of the two rectangular plug tubes 20 are installed on the processing box 9. In this arrangement, it is ensured that when the screening plate 16 rotates, because one end of the first inclined plate 8 is rotatable, the screening plate 16 can press down the first inclined plate 8 to squeeze the rectangular plug rods 19 into the rectangular plug tubes 20 when it rotates, until when the screening plate 16 leaves the top of the first inclined plate 8, at this time, the first inclined plate 8 can be reset with the assistance of the return springs 21, so that the vibration effect can be achieved, so that the efficiency is higher when feeding larger ultra-fine rubber powder.

[0035] The implementation principle of the device for screening ultrafine glue powder by airflow in the present embodiment is as follows: first, the ultrafine glue powder to be screened is prevented from entering the screening tank 1 from the feed port 3, and the ultrafine glue powder can enter the processing box 9 along the second inclined plate 10. At the same time, by starting the fan 13, the fan can blow air into the processing box 9, thereby blowing the screening plate 16 in the rotating mechanism arranged in the processing box 9 to rotate. When the screening plate 16 rotates, the ultrafine glue powder falling on the screening plate 16 will be able to rotate. At this time, some fine ultrafine glue powder will be able to fall from the screening plate 16 and be discharged from the unloading slot 17 and the first discharge port 4; and the ultrafine glue powder with larger particles will be able to fall under the rotation of the screening plate 16. When it reaches the bottom of the previous screening plate 16, it will be able to fall on the first inclined plate 8 along the rotation trajectory of the previous screening plate 16, so it can slide from the first inclined plate 8 to the second discharge port 5, so that the ultrafine rubber powder can be screened (at the same time, when the screening plate 16 rotates, because one end of the first inclined plate 8 is rotatable, the screening plate 16 can press down the first inclined plate 8 to squeeze the rectangular plug rod 19 into the rectangular plug cylinder 20, until the screening plate 16 leaves the top of the first inclined plate 8. At this time, the first inclined plate 8 can be reset with the assistance of the reset spring 21, so that the vibration effect can be achieved, making the discharge of larger ultrafine rubber powder more efficient).

Claims

1. A device for screening ultrafine rubber powder using airflow, comprising a screening tank (1), characterized in that: A feed port (3) is arranged above the screening tank (1), a first discharge port (4) is provided in the middle of the bottom of the screening tank (1), a second discharge port (5) is provided on a side wall of the screening tank (1), four supporting legs (2) are fixedly installed at the bottom of the screening tank (1) and are symmetrical to each other in pairs, a treatment box (9) is arranged in the inner cavity of the screening tank (1) at the first discharge port (4), and a fan (13) is arranged on the side of the inner cavity of the screening tank (1) opposite to the treatment box (9) and the feed port (3); A rotating mechanism is arranged in the processing box (9), and a vibrating mechanism is arranged on one side of the processing box (9) close to the second discharge port (5). The rotating mechanism is used to transport and screen the ultrafine rubber powder, and the rotating mechanism can drive the vibrating mechanism. The vibrating mechanism is used to better transport the screened ultrafine rubber powder.

2. The device for screening ultrafine rubber powder by airflow according to claim 1, characterized in that: A first rectangular notch (11) is provided on a side wall of the processing box (9) close to the feed port (3), a second rectangular notch (12) is provided on a side wall of the processing box (9) close to the second discharge port (5), and a discharge notch (17) is provided on a side wall of the processing box (9) close to the first discharge port (4).

3. The device for screening ultrafine rubber powder by airflow according to claim 2, characterized in that: The processing box (9) is provided with a plurality of inclined blocks (18) at the bottom of the material discharge slot (17), and the inner wall of the processing box (9) is provided with a second inclined plate (10), one end of the second inclined plate (10) is fixedly connected to the screening tank (1), and the other end of the second inclined plate (10) is fixedly connected to a first rectangular slot (11) opened on the processing box (9).

4. The device for screening ultrafine rubber powder by airflow according to claim 1, characterized in that: The rotating mechanism comprises a second rotating rod (15), both ends of which are provided with second bearings (14), and the two second bearings (14) are mounted on the inner wall of the processing box (9), and four screening plates (16) arranged in a circumferential distribution are fixedly mounted on the second rotating rod (15).

5. The device for screening ultrafine rubber powder by airflow according to claim 1, characterized in that: The vibration mechanism comprises a first inclined plate (8), one end of the first inclined plate (8) is connected to a first rotating rod (7), both ends of the first rotating rod (7) are provided with first bearings (6), two first bearings (6) are installed on the inner wall of the second discharge port (5), and the other end of the first inclined plate (8) is movable through the second rectangular slot (12) and is located on the inner wall of the processing box (9).

6. The device for screening ultrafine rubber powder by airflow according to claim 5, characterized in that: Two mutually symmetrical rectangular plug-in rods (19) are fitted and mounted at the bottom of one end of the first inclined plate (8) close to the rotating mechanism, and rectangular plug-in tubes (20) are plugged into the bottom of the two rectangular plug-in rods (19). Return springs (21) are fixedly mounted in the inner cavities of the two rectangular plug-in tubes (20), and the other ends of the two return springs (21) are fixedly connected to the rectangular plug-in rods (19), and the bottoms of the two rectangular plug-in tubes (20) are mounted on the processing box (9).

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