Dust removal device for color master batch production

Abstract

The invention belongs to the technical field of dust removal devices, and discloses a dust removal device for color master batch production, which comprises a cloth bag dust removal box, a fan and a dust suction pipe, an air inlet pipe and an air outlet pipe are arranged on the cloth bag dust removal box, one end of the fan is communicated with the dust suction pipe, and the other end of the fan is communicated with the air inlet pipe; an outer cavity for storing dust and an inner cavity for filtering the dust are formed in the cloth bag dust removal box, the air inlet pipe is communicated with the air outlet pipe through the inner cavity, a middle pipe body is fixedly arranged in the inner cavity and is communicated with the air inlet pipe, and dust removal cloth bags are uniformly and fixedly arranged on the middle pipe body in the circumferential direction of the middle pipe body; according to the invention, through the arrangement of the control unit, the effective use number of the dust collection bags can be increased according to the air volume of the fan, so that the use effect of the dust collection bags is ensured when the dust is more, and the dust collection bags are reasonably used.

Description

Technical Field

[0001] The invention belongs to the technical field of dust removal devices, in particular to a dust removal device for masterbatch production. Background Art

[0002] In the process of masterbatch production, dust removal devices are required in the mixing, grinding and conveying processes to remove dust generated in the processing. Some dust removal devices are carried out by bag dust removal. However, considering that in the actual production process, in the process of masterbatch processing, sometimes more dust is generated, and sometimes less dust is generated. The dust removal bags inside the conventional bag dust removal are always working. When there is less dust, if the required dust removal bags are still used to work, the frequency of cleaning the dust removal bags will undoubtedly increase. Therefore, it is necessary to provide a device that can match more dust removal bags to work when there is more dust to ensure the dust removal effect. When there is less dust, the number of dust removal bags can be appropriately reduced to use the dust removal bags reasonably. Summary of the invention

[0003] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a dust removal device for masterbatch production, which effectively solves the problem that the dust bag inside the conventional bag dust collector is always working, and when there is less dust, if the required dust bag is still used to work, the frequency of cleaning the dust bag will undoubtedly increase.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a dust removal device for masterbatch production, comprising a bag dust removal box, a fan and a dust suction pipe, the bag dust removal box is provided with an air inlet pipe and an air outlet pipe, one end of the fan is connected to the dust suction pipe, and the other end of the fan is connected to the air inlet pipe; the bag dust removal box is formed with an outer cavity for storing dust and an inner cavity for filtering dust, the air inlet pipe is connected to the air outlet pipe through the inner cavity, a middle tube body is fixedly provided inside the inner cavity, the middle tube body is connected to the air inlet pipe, and the middle tube body is uniformly fixed along its circumference A dust bag is provided, one end of the dust bag is placed in the middle tube body, the other end of the dust bag is placed in the outer cavity, and a solenoid valve is fixedly provided on the end of the dust bag close to the outer cavity, and a control unit for controlling the number of effective dust bags according to the air intake volume is provided inside the middle tube body; the control unit includes a support spring, a cover, a connecting rod and a baffle which are arranged in sequence from bottom to top, wherein the support spring is arranged between the cover and the inner bottom wall of the middle tube body, the cover is slidably arranged in the middle tube body, the baffle is fixed to the top of the cover by a connecting rod, and the baffle is located directly below the air intake pipe.

[0005] Preferably, a rib is fixedly provided on the inner wall of the middle tube body, and the rib is located above the sealing cover. The sealing cover is a hollow structure with its open end facing the supporting spring, and the outer wall of the sealing cover cooperates with the bag opening of the dust bag.

[0006] Preferably, the dust removal bag includes a front ring body, a middle bag body and a rear cover plate which are fixed in sequence, wherein the front ring body is placed in the middle tube body, the rear cover plate is placed in the outer cavity, and the solenoid valve is fixed on the rear cover plate; a connecting frame is fixedly provided on the inner side of the front ring body, and a dust removal mechanism for automatically cleaning the middle bag body is provided between the connecting frame and the rear cover plate.

[0007] Preferably, the dust removal mechanism includes a spiral rod body, a telescopic spring, a gasket and a conical shell, wherein the shell is fixedly arranged on the rear cover plate, and strip holes are opened on the shell and the connecting frame, the spiral rod body is slidably arranged between the two strip holes and cannot rotate, the telescopic spring, the gasket and the conical shell are movably arranged in sequence along the spiral rod body from the rear cover plate toward the connecting frame, and an impact tube is evenly fixedly arranged on one end of the conical shell close to the telescopic spring along its circumference, and the interior of the impact tube is connected with the interior of the conical shell.

[0008] Preferably, a square hole is formed at the center of the conical shell, and the square hole is movably matched with the spiral rod body.

[0009] Preferably, an annular elastic ring is evenly fixedly provided on the inner side of the middle bag body along its axial direction, and a cylindrical elastic ring is evenly fixedly provided on the inner side of the middle bag body along its circumference, and the multiple annular elastic rings are fixed by corresponding cylindrical elastic rings.

[0010] Preferably, the annular elastic ring and the cylindrical elastic ring are both hollow structures, and the annular elastic ring is connected to the cylindrical elastic ring, a conduit is fixedly provided on the cylindrical elastic ring, the conduit is connected to the shell, a return spring and a piston are movably provided inside the shell, one end of the return spring close to the rear cover plate is fixed to the spiral rod body, and the piston is fixed to the spiral rod body.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1) During operation, the control unit can increase the effective number of dust bags according to the air volume of the fan, so that more dust bags can be matched when there is more dust to ensure the dust removal effect. When there is less dust, the number of dust bags can be reduced to achieve reasonable use of dust bags;

[0013] 2) During operation, through the cooperation of the conical shell, the spiral rod body, the telescopic spring, etc., the inner wall of the dust bag can be impacted by the impact of the airflow when the dust bag is working, so as to achieve the purpose of dust removal, thereby ensuring the dust removal effect of the dust bag without causing wear to the dust bag;

[0014] 3) During operation, through the cooperation of the piston, shell, conduit, annular elastic ring and cylindrical elastic ring, the cylindrical elastic ring and the annular elastic ring can be expanded and enlarged by the airflow, thereby further increasing the expansion degree of the dust bag. After the fan stops working, the deformation of the middle bag body between adjacent annular elastic rings will also be increased, which further reduces the adhesion of dust and increases the possibility of dust falling, thereby further enhancing the automatic dust removal effect of the dust bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0016] In the attached picture:

[0017] Figure 1 It is a schematic structural diagram of a dust removal device for masterbatch production of the present invention;

[0018] Figure 2 It is a schematic diagram of the internal structure of the bag dust removal box of the present invention;

[0019] Figure 3 This is a schematic diagram of the dust bag installation structure of the present invention;

[0020] Figure 4 It is a schematic diagram of the internal structure of the middle tube body of the present invention;

[0021] Figure 5 It is a schematic diagram of the structure of the dust removal bag of the present invention;

[0022] Figure 6 This is one of the schematic diagrams of the conical shell installation structure of the present invention;

[0023] Figure 7 This is the second schematic diagram of the conical shell installation structure of the present invention;

[0024] Figure 8 It is a schematic diagram of the installation structure of the annular elastic ring and the cylindrical elastic ring of the present invention;

[0025] In the figure: 1. dust bag box; 2. fan; 3. dust suction pipe; 4. air inlet pipe; 5. air outlet pipe; 6. outer cavity; 7. inner cavity; 8. middle tube body; 9. dust bag; 10. solenoid valve; 11. support spring; 12. cover; 13. connecting rod; 14. baffle; 15. rib; 16. front ring body; 17. middle bag body; 18. rear cover; 19. connecting frame; 20. spiral rod body; 21. telescopic spring; 22. gasket; 23. conical shell; 24. shell; 25. strip hole; 26. impact tube; 27. square hole; 28. annular elastic ring; 29. ​​cylindrical elastic ring; 30. catheter; 31. reset spring; 32. piston. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0027] Depend on Figure 1-Figure 8 The present invention relates to a dust removal device for masterbatch production, comprising a bag dust removal box 1, a fan 2 and a dust suction pipe 3, the bag dust removal box 1 is provided with an air inlet pipe 4 and an air outlet pipe 5, one end of the fan 2 is connected with the dust suction pipe 3, and the other end of the fan 2 is connected with the air inlet pipe 4; the interior of the bag dust removal box 1 forms an outer cavity 6 for storing dust and an inner cavity 7 for filtering dust, the air inlet pipe 4 is connected with the air outlet pipe 5 through the inner cavity 7, a middle tube body 8 is fixedly provided inside the inner cavity 7, the middle tube body 8 is connected with the air inlet pipe 4, dust removal bags 9 are uniformly fixedly provided on the middle tube body 8 along its circumference, one end of the dust removal bag 9 is placed in the middle tube body 8, and the other end of the dust removal bag 9 is placed in the outer cavity 6, and a solenoid valve 10 is fixedly provided on the end of the dust removal bag 9 close to the outer cavity 6;

[0028] In this design, when in use, the dust suction pipe 3 is installed on the masterbatch production equipment, and the suction force is generated by the fan 2 to suck in the air with dust generated during the processing of the masterbatch production equipment, and transport it to the inside of the middle tube body 8 through the air inlet pipe 4, and then the dust is filtered through the dust bag 9. The filtered air enters the inside of the inner cavity 7 and is discharged through the air outlet pipe 5, thereby realizing the dust removal process during the masterbatch processing;

[0029] After a long period of use, a lot of dust will accumulate inside the dust bag 9. At this time, you only need to open the solenoid valve 10, and the dust in the dust bag 9 can be stored in the outer cavity 6 with the help of the impact of the airflow. A side door is provided on the outer cavity 6. The side door is closed when not in use and opened when in use, so as to discharge the dust accumulated in the outer cavity 6.

[0030] Considering that in the actual production process, in the process of masterbatch processing, sometimes more dust is generated, and sometimes less dust is generated. When there is more dust, the fan 2 needs to generate a larger air volume, and more dust removal bags 9 are required to work to ensure the dust removal effect. When there is less dust, the number of dust removal bags 9 can be appropriately reduced to reasonably use the dust removal bags 9. Therefore, a control unit for controlling the number of effective dust removal bags 9 according to the air intake volume is provided inside the middle tube body 8; the control unit includes a support spring 11, a cover 12, a connecting rod 13 and a baffle 14 arranged in sequence from bottom to top, wherein the support spring 11 is arranged between the cover 12 and the inner bottom wall of the middle tube body 8, the cover 12 is slidably arranged in the middle tube body 8, and the baffle 14 is fixed to the top of the cover 12 by the connecting rod 13, and the baffle 14 is located directly below the air inlet pipe 4;

[0031] The inner wall of the middle tube body 8 is fixedly provided with a rib 15, which is located above the cover 12. The cover 12 is a hollow structure with its open end facing the support spring 11. The outer wall of the cover 12 cooperates with the bag opening of the dust bag 9.

[0032] With this design, when there is less dust, the required air volume is also smaller, so the impact of the airflow generated by the fan 2 on the baffle 14 is also small, so that the effective moving distance of the baffle 14 is limited. At this time, only the top dust bag 9 is working, and the other dust bags 9 are not working, so the dust bags 9 are used reasonably; when there is more dust, the required air volume is larger, so the impact of the airflow generated by the fan 2 on the baffle 14 is larger, which will cause the baffle 14 to move a certain distance. Specifically, the baffle 14 drives the cover 12 to move through the connecting rod 13, so that the cover 12 squeezes the support spring 11, and makes the dust bag 9 located below connected to the inside of the middle tube body 8 to perform dust removal work, and the dust removal effect when there is more dust is guaranteed by increasing the number of dust bags 9.

[0033] Specifically, the dust removal bag 9 includes a front ring body 16, a middle bag body 17 and a rear cover plate 18 which are fixed in sequence, wherein the front ring body 16 is placed in the middle tube body 8, the rear cover plate 18 is placed in the outer cavity 6, and the solenoid valve 10 is fixedly arranged on the rear cover plate 18; a connecting frame 19 is fixedly arranged on the inner side of the front ring body 16.

[0034] Considering that a large amount of dust will adhere to the inner wall of the dust bag 9 after a long period of use, a dust removal mechanism for automatically cleaning the middle bag body 17 is provided between the connecting frame 19 and the rear cover plate 18; the dust removal mechanism includes a spiral rod body 20, a telescopic spring 21, a gasket 22 and a conical shell 23, wherein a shell 24 is fixedly provided on the rear cover plate 18, and strip holes 25 are provided on the shell 24 and the connecting frame 19, the spiral rod body 20 is slidably provided between the two strip holes 25 and cannot rotate, the telescopic spring 21, the gasket 22 and the conical shell 23 are movably provided on the spiral rod body 20 in sequence from the rear cover plate 18 toward the connecting frame 19, and an impact tube 26 is evenly fixedly provided on the conical shell 23 at one end close to the telescopic spring 21 along its circumference, and the interior of the impact tube 26 is connected with the interior of the conical shell 23;

[0035] A square hole 27 is formed at the center of the conical shell 23, and the square hole 27 is movably matched with the spiral rod body 20;

[0036] With this design, when the airflow enters the dust bag 9, it pushes the conical shell 23. The airflow in the conical shell 23 converges and is accelerated by the impact tube 26. Finally, it is discharged through the impact tube 26 and impacts the inner wall of the middle bag body 17. Since the airflow is used for impact dust removal, it will not cause wear to the middle bag body 17. A cleaning brush can also be provided at the pipe mouth of the impact tube 26, which can be selected according to actual conditions; the square hole 27 on the conical shell 23 moves along the spiral rod body 20 toward the direction of the rear cover plate 18 and rotates itself, so that the impact tube 26 continuously performs airflow impact dust removal on the inner wall of the middle bag body 17 after rotation; when the fan 2 stops working, under the action of the telescopic spring 21, the conical shell 23 returns to its original position, thereby realizing the automatic cleaning process of the dust on the inner wall of the dust bag 9.

[0037] In order to further improve the dust removal effect of the dust bag 9, an annular elastic ring 28 is evenly fixedly arranged on the inner side of the middle bag body 17 along its axial direction, and a cylindrical elastic ring 29 is evenly fixedly arranged on the inner side of the middle bag body 17 along its circumference, and multiple annular elastic rings 28 are fixed by corresponding cylindrical elastic rings 29;

[0038] With such a design, when the air flow enters the interior of the middle bag body 17, the middle bag body 17 as a whole will be in an expanded state. At this time, the annular elastic ring 28 and the cylindrical elastic ring 29 are both in a stretched and enlarged state. After the fan 2 stops working, the middle bag body 17 will shrink under the action of the annular elastic ring 28 and the cylindrical elastic ring 29. At this time, the dust attached to the inner wall of the middle bag body 17 will fall off during the shrinkage, thereby reducing the possibility of dust adhering to the inner wall of the middle bag body 17.

[0039] Furthermore, the annular elastic ring 28 and the cylindrical elastic ring 29 are both hollow structures, and the annular elastic ring 28 is connected to the cylindrical elastic ring 29, a conduit 30 is fixedly provided on the cylindrical elastic ring 29, the conduit 30 is connected to the housing 24, a return spring 31 and a piston 32 are movably provided inside the housing 24, the return spring 31 is fixedly provided at one end close to the rear cover plate 18 to the spiral rod body 20, and the piston 32 is fixedly provided to the spiral rod body 20;

[0040] With such a design, when the conical shell 23 is pushed by the air flow, the conical shell 23 moves the spiral rod body 20 through the return spring 31, and the spiral rod body 20 drives the piston 32 to slide in the shell body 24, so that the air in the shell body 24 enters the interior of the cylindrical elastic ring 29 and the annular elastic ring 28 through the conduit 30, so that the cylindrical elastic ring 29 and the annular elastic ring 28 expand again, thereby further increasing the expansion degree of the middle bag body 17, and after the fan 2 stops working, the deformation of the middle bag body 17 between adjacent annular elastic rings 28 will also be larger, which will further reduce the adhesion of dust and increase the possibility of dust falling, thereby further enhancing the automatic dust removal effect of the dust removal bag 9.

[0041] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A dust removal device for masterbatch production, comprising a bag dust removal box (1), a fan (2) and a dust suction pipe (3), wherein the bag dust removal box (1) is provided with an air inlet pipe (4) and an air outlet pipe (5), one end of the fan (2) is connected to the dust suction pipe (3), and the other end of the fan (2) is connected to the air inlet pipe (4); characterized in that: The bag dust removal box (1) is internally formed with an outer cavity (6) for storing dust and an inner cavity (7) for filtering dust. The air inlet pipe (4) is connected to the air outlet pipe (5) through the inner cavity (7). A middle tube body (8) is fixedly arranged inside the inner cavity (7). The middle tube body (8) is connected to the air inlet pipe (4). A dust removal bag (9) is evenly fixedly arranged on the middle tube body (8) along its circumference. One end of the dust removal bag (9) is placed in the middle tube body (8), and the other end of the dust removal bag (9) is placed in the outer cavity (6). The end of the dust removal bag (9) close to the outer cavity (6) is fixedly arranged on the middle tube body (8). A solenoid valve (10) is fixedly arranged, and a control unit for controlling the number of effective dust removal bags (9) according to the air intake volume is arranged inside the middle tube body (8); the control unit comprises a support spring (11), a cover (12), a connecting rod (13) and a baffle (14) arranged in sequence from bottom to top, wherein the support spring (11) is arranged between the cover (12) and the inner bottom wall of the middle tube body (8), the cover (12) is slidably arranged in the middle tube body (8), the baffle (14) is fixed to the top of the cover (12) through the connecting rod (13), and the baffle (14) is located directly below the air intake pipe (4).

2. A dust removal device for masterbatch production according to claim 1, characterized in that: The inner wall of the middle tube body (8) is fixedly provided with a rib (15), the rib (15) is located above the sealing cover (12), the sealing cover (12) is a hollow structure and its open end faces the supporting spring (11), and the outer wall of the sealing cover (12) is used in conjunction with the bag opening of the dust removal bag (9).

3. The dust removal device for masterbatch production according to claim 1, characterized in that: The dust removal bag (9) comprises a front ring body (16), a middle bag body (17) and a rear cover plate (18) which are fixed in sequence, wherein the front ring body (16) is placed in the middle tube body (8), the rear cover plate (18) is placed in the outer cavity (6), and the solenoid valve (10) is fixedly arranged on the rear cover plate (18); a connecting frame (19) is fixedly arranged on the inner side of the front ring body (16), and a dust removal mechanism for automatically cleaning the middle bag body (17) is arranged between the connecting frame (19) and the rear cover plate (18).

4. A dust removal device for masterbatch production according to claim 3, characterized in that: The dust removal mechanism comprises a spiral rod body (20), a telescopic spring (21), a gasket (22) and a conical shell (23), wherein a shell (24) is fixedly arranged on the rear cover plate (18), strip holes (25) are provided on the shell (24) and the connecting frame (19), the spiral rod body (20) is slidably arranged between the two strip holes (25) and cannot rotate, the telescopic spring (21), the gasket (22) and the conical shell (23) are movably arranged on the spiral rod body (20) in sequence from the rear cover plate (18) toward the connecting frame (19), and an impact tube (26) is evenly fixedly arranged on one end of the conical shell (23) close to the telescopic spring (21) along the circumference thereof, and the interior of the impact tube (26) is communicated with the interior of the conical shell (23).

5. A dust removal device for masterbatch production according to claim 4, characterized in that: A square hole (27) is formed at the center of the conical shell (23), and the square hole (27) is movably matched with the spiral rod body (20).

6. A dust removal device for masterbatch production according to claim 4, characterized in that: An annular elastic ring (28) is evenly and fixedly arranged on the inner side of the middle bag body (17) along its axial direction, and a cylindrical elastic ring (29) is evenly and fixedly arranged on the inner side of the middle bag body (17) along its circumference, and the plurality of annular elastic rings (28) are fixed by corresponding cylindrical elastic rings (29).

7. A dust removal device for masterbatch production according to claim 6, characterized in that: The annular elastic ring (28) and the cylindrical elastic ring (29) are both hollow structures, and the annular elastic ring (28) is connected to the cylindrical elastic ring (29), a conduit (30) is fixedly arranged on the cylindrical elastic ring (29), the conduit (30) is connected to the housing (24), a return spring (31) and a piston (32) are movably arranged inside the housing (24), one end of the return spring (31) close to the rear cover plate (18) is fixedly arranged on the spiral rod body (20), and the piston (32) is fixedly arranged on the spiral rod body (20).

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