Dust removal bag for filtering powder of tobacco dust remover

Abstract

The utility model relates to a dust removal bag for filtering powder of a tobacco dust remover, which is arranged in a dust removal box, and the dust removal box comprises a box body, an air inlet, an air outlet, a mounting plate surface, a rear cover, a front cover and a dust removal bag, the rear cover and the front cover are respectively hinged to two opposite surfaces of the box body; the air inlet is formed in the box body shell above the rear cover; the mounting plate surface is vertically arranged in the box body, and the planes where the mounting plate surface, the front cover and the rear cover are located are parallel to one another; an air outlet is formed above the area between the mounting plate surface and the front cover and leads to the outside of the box body from the area between the mounting plate surface and the front cover; the dust removal bag is mounted on the mounting plate surface and is in a regular quadrangular frustum pyramid shape, and dust removal materials are arranged on the upper bottom and the side surfaces; four edges of the lower bottom of the dust removal bag are tubular; a quadrilateral mounting groove with the same shape as the lower bottom frame of the dust removal bag is formed in the surface, facing the rear cover, of the mounting plate, and the interior of the mounting groove is arc-shaped; air passing openings are formed in the positions, between the quadrangles defined by the installation grooves, of the installation plate face.

Description

Technical Field

[0001] The utility model relates to the technical field of tobacco processing equipment, in particular to a dust removal bag for powder filtration of a tobacco dust collector. Background Art

[0002] Dust removal is a very crucial step during tobacco processing. Dust removal can remove impurities in tobacco leaves, such as dust, fiber fragments, etc. These impurities not only affect the purity of tobacco leaves, but may also affect the taste and combustion quality of tobacco products. If effective dust removal is not carried out, these dusts will deposit on mechanical equipment, resulting in accelerated equipment wear, affecting the equipment life and processing accuracy. Regular dust removal can reduce equipment maintenance costs. If the dust in tobacco processing is discharged into the air, it will cause environmental pollution and may pose a threat to the health of workers, such as causing respiratory diseases. Finally, tobacco dust may become explosive dust under certain conditions. When it accumulates to a certain concentration, there is a risk of fire and explosion.

[0003] Tobacco processing equipment is specialized equipment. The tobacco powder in the processes of tobacco leaf conditioning and cigarette making and packing is processed by a professional tobacco equipment dust collector. In the dust collector, a special dust removal bag is required to separate and collect the tobacco gas and tobacco dust fed in under negative pressure. The special dust removal bag needs to have a better designed shape and angle to have a more effective spraying effect, so as to prevent dust accumulation, blockage, affect the negative pressure effect, and further affect the production process quality.

[0004] The currently used dust removal bag is flat, with ultra-fine activated carbon fibers inside and polyester industrial cloth wrapped outside for protection. Multiple dust removal bags are inserted side by side into the frame sockets to form a filter tower. There is only one air inlet in the filter tower. Due to the dense arrangement and flat shape of the current dust removal bag structure, the surface of the dust removal bag is in uneven contact with the air, and the tobacco powder near the air inlet is prone to accumulation. Moreover, the installation interface of the flat dust removal bag is prone to deformation. Once deformed, if the installation is not airtight enough, there will be a risk of dust leakage. Summary of the Utility Model

[0005] In order to solve the above deficiencies of the prior art, the utility model provides a dust removal bag for powder filtration of a tobacco dust collector. By changing the structure of the dust removal bag to a regular quadrangular frustum, with the upper base close to the air inlet side, both the upper base and the side surfaces are provided with dust removal surfaces, and the lower base is not provided with a dust removal surface and serves as the air outlet, so that the incoming air passes evenly through each dust removal surface, and each dust removal surface is utilized to the greatest extent to remove the incoming air. Specifically, the technical solution for the utility model to achieve the above purpose is as follows:

[0006] A dust removal bag for powder filtration of a tobacco dust collector, which is installed in a dust removal box. The dust removal box includes a box body, an air inlet, an air outlet, an installation board surface, a rear cover, a front cover and a dust removal bag; the rear cover and the front cover are respectively hinged and installed on opposite sides of the box body to cover the box body; the air inlet is opened on the outer shell of the box body above the rear cover and leads from the outside of the box body to the inside; the installation board surface is vertically installed inside the box body, and the planes where the installation board surface, the front cover and the rear cover are located are parallel to each other; an air passing hole is opened on the installation board surface, and an air outlet is arranged above the area between the installation board surface and the front cover. The air outlet leads from the area between the installation board surface and the front cover to the outside of the box body; the dust removal bag is installed on the installation board surface.

[0007] The dust removal bag is in the shape of a regular quadrangular frustum, and dust removal materials are provided on the upper bottom and the side surfaces; the four sides of the lower bottom of the dust removal bag are tubular; an installation groove is opened on the surface of the installation board surface facing the rear cover, and the installation groove encloses a quadrilateral with the same shape as the border of the lower bottom of the dust removal bag, and the inside of the installation groove is arc-shaped; by clamping the four sides of the lower bottom of the dust removal bag into the installation groove, the dust removal bag can be installed on the installation board surface; the air passing hole is opened between the quadrilaterals enclosed by the installation groove.

[0008] Further, an air pressure pipeline is also arranged in the dust removal box, and the air pressure pipeline passes through the box body and is installed between the installation board surface and the front cover; a waist-shaped hole is opened between the quadrilaterals enclosed by the installation groove. The air pressure pipeline includes an air inlet pipeline and a jet pipeline. One end of the jet pipeline is connected to the air inlet pipeline, and the diameter of the jet pipeline gradually decreases from the end connected to the air inlet pipeline to the other end; the jet pipeline is arranged parallel to the waist-shaped hole, and a plurality of air outlet small holes are opened on the jet pipeline. The air outlet small holes are opposite to the waist-shaped hole, and the jet direction is perpendicular to the plane where the installation board surface is located.

[0009] Further, a plurality of installation grooves are arranged on the installation board surface, and each installation groove is equipped with a dust removal bag and a jet pipeline.

[0010] Further, the diameter of the end of the jet pipeline connected to the air inlet pipeline is 3.5 cm, and the diameter of the end far from the air inlet pipeline is 2.5 cm; the aperture of the air outlet small hole is 1.5 mm.

[0011] Further, a bag-removing handle is fixedly installed on the outer side of the upper bottom of the dust removal bag, and the bag-removing handle is used to hold the dust removal bag for disassembly or installation.

[0012] Further, the upper bottom surface of the dust removal bag is a square with a side length of 40 cm, the lower bottom surface is a square with a side length of 70 cm, and the height of the dust removal bag is 150 cm.

[0013] Furthermore, the dust removal material is polyester needle felt.

[0014] When in use, open the rear cover 14 of the dust removal box. After the staff holds the bag-removing handle 22, the lower bottom of the dust removal bag 2 is installed and clamped in the installation groove 132 of the installation board surface 13; then close the rear cover 14; the incoming air enters the inside of the box body 1 through the air inlet 11, and after being dust-removed by the dust removal material 21 on the upper bottom and side surface of the dust removal bag 2, the clean air enters the inside of the dust removal bag 2, passes through the air passing hole 131 opened on the installation board surface 13 from the lower bottom of the dust removal bag 2, enters the area between the installation board surface 13 and the front cover 15, and then enters the air outlet 12 upward and is sent out of the box body 1. When too much dust accumulates on the outer surface of the dust removal bag 2, high-pressure gas is filled into the air pressure pipeline, and the high-pressure gas enters the jet pipeline 4 and blows the accumulated dust on the surface of the dust removal bag 2 into the bottom of the box body 1 through the air outlet holes for unified collection. The jet pipeline 4 with a gradually decreasing diameter can ensure that the air pressure at the terminal is not lower than the air pressure at the intake end, ensuring uniform blowing.

[0015] Compared with the prior art, the utility model has the following advantages:

[0016] The utility model uses a regular quadrangular frustum-shaped dust removal bag, making the ventilation area more uniform and reasonable, and facilitating disassembly and assembly, avoiding the problem that it is difficult to install or the installation is not airtight enough when the previous dust removal bag is slightly deformed, resulting in the risk of dust leakage; adding an air pressure pipeline to clean the accumulated dust on the dust removal bag, solving the problem of uneven air pressure force after the traditional dust removal bag accumulates dust; the different diameters of the jet pipelines enhance the air pressure at the tail end, making the air pressure balanced during blowing, and further avoiding the accumulation of tobacco powder on the dust removal bag. Description of the Drawings

[0017] Figure 1 It is a schematic diagram of the usage scenario of the embodiment of the utility model;

[0018] Figure 2 It is a schematic diagram of the usage scenario of the embodiment of the utility model from another angle;

[0019] Figure 3 It is a side sectional view of the usage scenario of the embodiment of the utility model;

[0020] Figure 4 It is a schematic diagram of the structure of the dust removal bag of the embodiment of the utility model;

[0021] Figure 5 It is a schematic diagram of the structure of the dust removal bag of the embodiment of the utility model from another angle;

[0022] Figure 6 It is a schematic diagram of the installation of the dust removal bag of the embodiment of the utility model;

[0023] Figure 7This is a schematic diagram of the use state of the air pressure pipeline according to the embodiment of the present utility model.

[0024] In the figure:

[0025] 1 - box body, 11 - air inlet, 12 - air outlet, 13 - mounting plate surface, 131 - air passing hole, 132 - mounting groove, 133 - kidney-shaped hole, 14 - rear cover, 15 - front cover;

[0026] 2 - dust removal bag, 21 - dust removal material, 22 - bag removal handle;

[0027] 3 - intake pipeline; 4 - jet pipeline. Specific implementation manner

[0028] As Figure 1-7 shown, the embodiments of the present utility model are as follows:

[0029] A dust removal bag 2 for powder filtration of a tobacco dust collector is installed in a dust removal box. The dust removal box includes a box body 1, an air inlet 11, an air outlet 12, an installation plate surface 13, a rear cover 14, a front cover 15, the dust removal bag 2 and a pneumatic pipeline. Legs are provided at the four corners of the bottom of the box body 1. The rear cover 14 and the front cover 15 are respectively hinged and installed on the opposite two sides of the box body 1 to cover the box body 1. Opening the front cover 15 or the rear cover 14 allows operation inside the box body 1. A structural frame is provided inside the box body 1 to stabilize the structure of the box body 1. Both the box body 1 and the internally provided frame are made of stainless steel. The air inlet 11 is opened on the outer shell of the box body 1 above the rear cover 14 and leads from the outside to the inside of the box body 1; the installation plate surface 13 is vertically installed inside the box body 1, and the planes where the installation plate surface 13, the front cover 15 and the rear cover 14 are located are parallel to each other; an air passing opening 131 is opened on the installation plate surface 13, and an air outlet 12 is provided above the area between the installation plate surface 13 and the front cover 15. The air outlet 12 leads from the area between the installation plate surface 13 and the front cover 15 to the outside of the box body 1; the dust removal bag 2 is installed on the installation plate surface 13; the dust removal bag 2 is in the shape of a regular quadrangular frustum, and dust removal materials 21 are provided on the upper bottom and the side surfaces; the dust removal materials 21 are polyester needle-punched felts, which are made of polyester fibers through a needle-punching process. The surface of the needle-punched felt can be treated by a hot surface process to be flat and non-fuzzy. The polyester needle-punched felt filters gas with fine and short fibers arranged in a staggered manner and evenly distributed pores, and the porosity reaches 70%, which is twice that of woven filter cloth. It has high dust removal efficiency and low gas emission concentration. The surface of the polyester needle-punched felt is smooth after hot rolling, singeing or coating finishing, is not easily blocked, does not deform, is easy to clean, and has a long service life. A bag removal handle 22 is fixedly installed on the outer side of the upper bottom of the dust removal bag 2. The bag removal handle 22 is used to hold the dust removal bag 2 for disassembly or installation. The four sides of the lower bottom of the dust removal bag 2 are tubular; an installation groove 132 is opened on the side of the installation plate surface 13 facing the rear cover 14. The installation groove 132 encloses a quadrilateral with the same shape as the lower bottom frame of the dust removal bag 2, and the inside of the installation groove 132 is arc-shaped; the four sides of the lower bottom of the dust removal bag 2 are snapped into the installation groove 132 to install the dust removal bag 2 on the installation plate surface 13; the air passing opening 131 is opened between the quadrilateral enclosed by the installation groove 132. The upper bottom surface of the dust removal bag 2 is a square with a side length of 40 cm, the lower bottom surface is a square with a side length of 70 cm, and the height of the dust removal bag 2 is 150 cm.

[0030] The air compressor pipeline is installed between the installation board surface 13 and the front cover 15 through the box body 1; a waist-shaped hole 133 is opened between the quadrilaterals surrounded by the installation grooves 132. The air compressor pipeline includes an air inlet pipeline 3 and a jet pipeline 4. One end of the jet pipeline 4 is connected to the air inlet pipeline 3, and the diameter of the jet pipeline 4 gradually decreases from the end connected to the air inlet pipeline 3 to the other end; the jet pipeline 4 is arranged in parallel with the waist-shaped hole 133, and a number of air outlet small holes are opened on the jet pipeline 4. The air outlet small holes are directly opposite to the waist-shaped hole 133, and the jet direction is perpendicular to the plane where the installation board surface 13 is located; the diameter of the end of the jet pipeline 4 connected to the air inlet pipeline is 3.5 cm, and the diameter of the end far from the air inlet pipeline 3 is 2.5 cm; the aperture of the air outlet small hole is 1.5 mm. A number of installation grooves 132 are arranged on the installation board surface 13, and each installation groove 132 is equipped with a dust removal bag 2 and a jet pipeline 4.

[0031] During use, open the rear cover 14 of the dust removal box. After the staff holds the bag-removing handle 22, install the lower bottom of the dust removal bag 2 in the installation groove 132 of the installation board surface 13 and clamp it tightly; then close the rear cover 14; the incoming air enters the inside of the box body 1 through the air inlet 11. After being dust-removed by the dust removal material 21 on the upper bottom and side surfaces of the dust removal bag 2, the clean air enters the inside of the dust removal bag 2, passes through the air passing hole 131 opened on the installation board surface 13 from the lower bottom of the dust removal bag 2, enters the area between the installation board surface 13 and the front cover 15, and then enters the air outlet 12 upward to be sent out of the box body 1. When too much dust accumulates on the outer surface of the dust removal bag 2, high-pressure gas is filled into the air compressor pipeline. The high-pressure gas enters the jet pipeline 4 and blows the dust accumulated on the surface of the dust removal bag 2 into the inside of the dust removal bag 2 through the air outlet small holes and blows it down to the bottom of the box body 1 for unified collection. The jet pipeline 4 with a gradually decreasing diameter can ensure that the air pressure at the terminal is not lower than the air pressure at the air inlet end, ensuring uniform jetting.

[0032] It should be understood that the above specific embodiments of the present invention are only used for exemplary illustration or explanation of the principle of the present invention, and do not constitute a limitation to the present invention. Therefore, any modifications, equivalent replacements, improvements, etc. made without departing from the spirit and scope of the present invention shall be included within the protection scope of the present invention. In addition, the appended claims of the present invention are intended to cover all changes and modification examples falling within the scope and boundary of the appended claims, or equivalent forms of such scope and boundary.

Claims

1. A dust removal bag for powder filtration of a tobacco dust collector, which is installed in a dust removal box. The dust removal box includes a box body (1), an air inlet (11), an air outlet (12), an installation plate surface (13), a rear cover (14), a front cover (15), and a dust removal bag (2); the rear cover (14) and the front cover (15) are respectively hinged and installed on opposite sides of the box body (1) for covering the box body (1); the air inlet (11) is opened on the outer shell of the box body (1) above the rear cover (14) and leads from the outside of the box body (1) to the inside; the installation plate surface (13) is vertically installed inside the box body (1), and the planes where the installation plate surface (13), the front cover (15), and the rear cover (14) are located are parallel to each other; an air passing opening (131) is opened on the installation plate surface (13), and an air outlet (12) is arranged above the area between the installation plate surface (13) and the front cover (15), and the air outlet (12) leads from the area between the installation plate surface (13) and the front cover (15) to the outside of the box body (1); the dust removal bag (2) is installed on the installation plate surface (13); its characteristics are as follows: The dust removal bag (2) is in the shape of a regular quadrangular frustum, and dust removal materials (21) are provided on the upper bottom and the side surfaces; the four sides of the lower bottom of the dust removal bag (2) are tubular; an installation groove (132) is opened on one side of the installation plate surface (13) facing the rear cover (14), and the installation groove (132) encloses a quadrilateral with the same shape as the lower bottom border of the dust removal bag (2), and the inside of the installation groove (132) is arc-shaped; the dust removal bag (2) can be installed on the installation plate surface (13) by clamping the four sides of the lower bottom of the dust removal bag (2) into the installation groove (132); the air passing opening (131) is opened between the quadrilaterals enclosed by the installation groove (132).

2. The dust removal bag for powder filtration of a tobacco dust collector according to claim 1, wherein: An air pressure pipeline is further arranged in the dust removal box, and the air pressure pipeline passes through the box body (1) and is installed between the installation plate surface (13) and the front cover (15); a waist-shaped hole (133) is opened between the quadrilaterals enclosed by the installation groove (132), the air pressure pipeline includes an air inlet pipeline (3) and an air jet pipeline (4), one end of the air jet pipeline (4) is connected to the air inlet pipeline (3), and the diameter of the air jet pipeline (4) gradually decreases from the end connected to the air inlet pipeline (3) to the other end; the air jet pipeline (4) is arranged parallel to the waist-shaped hole (133), and a plurality of air outlet small holes are opened on the air jet pipeline (4), the air outlet small holes are directly opposite to the waist-shaped hole (133), and the air jet direction is perpendicular to the plane where the installation plate surface (13) is located.

3. The dust removal bag for powder filtration of a tobacco dust collector according to claim 2, characterized in that: A plurality of installation grooves (132) are arranged on the installation plate surface (13), and each installation groove (132) is equipped with a dust removal bag (2) and an air jet pipeline (4).

4. The dust removal bag for powder filtration of a tobacco dust collector according to claim 2, characterized in that: The diameter of the end of the air jet pipeline (4) connected to the air inlet pipeline is 3.5 cm, and the diameter of the end far from the air inlet pipeline (3) is 2.5 cm; the diameter of the air outlet small hole is 1.5 mm.

5. The dust removal bag for powder filtration of a tobacco dust collector according to claim 1, wherein: A bag removal handle (22) is fixedly installed on the outer side of the upper bottom of the dust removal bag (2), and the bag removal handle (22) is used for holding the dust removal bag (2) for disassembly or installation.

6. The dust removal bag for powder filtration of a tobacco dust collector according to claim 1, characterized in that: The upper bottom surface of the dust removal bag (2) is a square with a side length of 40 cm, the lower bottom surface is a square with a side length of 70 cm, and the height of the dust removal bag (2) is 150 cm.

7. The dust removal bag for powder filtration of a tobacco dust collector according to claim 1, characterized in that: The dust removal material (21) is polyester needle punched felt.

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