Bag type dust collector

Abstract

The utility model relates to the technical field of dust collectors, in particular to a bag type dust collector, which comprises a box body, a filter bag frame, a partition plate, a dust hopper, an air inlet, an air outlet and a blowing component, the box body is of a hollow square structure with an opening at the bottom, and the box body is divided into a dust cleaning cavity and a blowing cavity by the partition plate arranged above the inner wall of the box body; a plurality of connecting holes for fixing the top end of the filter bag frame are uniformly distributed in the partition plate, and a filter bag is sleeved outside the filter bag frame; an air inlet is formed in the lower portion of the outer wall of the ash removal cavity, and an air outlet is formed in the inner wall of the blowing cavity. The blowing assembly is arranged in the blowing cavity, and a blowing head of the blowing assembly faces the connecting hole. By arranging the one-way mechanism, the situation that when air does not enter the box body, dust in the box body is reversely blown to the air inlet pipe to cause blockage of the air inlet pipe can be avoided; and the blowing pipe is connected with the output pipe of the electromagnetic pulse valve through a rubber pipe, so that manufacturing errors can be made up, and mounting gaps can be provided.

Description

Technical Field

[0001] The utility model relates to the technical field of dust collectors, in particular to a bag dust collector. Background Art

[0002] A bag dust collector is a dry dust filtering device. It is suitable for collecting fine, dry, non-fibrous dust. The filter bag is made of woven filter cloth or non-woven felt, and the fiber fabric is used to filter the dust-containing gas. When the dust-containing gas enters the bag dust collector, dust with large particles and high specific gravity settles down due to the action of gravity and falls into the ash hopper. When the gas containing finer dust passes through the filter material, the dust is retained, and the gas is purified. At present, some problems occur in the operation of the bag dust collector. For example, when the intake pipe does not intake air, the dust in the dust collector box will be blown back into the intake pipe; due to manufacturing errors or installation gaps, when the blowpipe is installed at the output end of the electromagnetic pulse valve, there are errors and the installation is unstable, or the blow head cannot be aligned with the filter bag.

[0003] Based on the above problems, the utility model provides a bag dust collector. Content of the Utility Model

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a bag dust collector. By setting a one-way mechanism, it can avoid the dust in the box being blown back to the intake pipe when there is no air intake; the blowpipe and the output pipe of the electromagnetic pulse valve are connected by a rubber tube, which can make up for manufacturing errors and provide installation gaps, and can also ensure that after installation, the blow head on the blowpipe can face down and be aligned with the filter bag.

[0005] In order to achieve the purpose of the utility model, the technical solution adopted by the utility model is as follows:

[0006] The utility model discloses a bag type dust collector, which comprises a box body, a filter bag frame, a partition board, a hopper, an air inlet, an air outlet and a blowing assembly. The box body is of a square structure with a hollow bottom and an opening at the bottom. The box body is divided into a dust cleaning cavity and a blowing cavity by a partition board arranged above the inner wall thereof. A plurality of connecting holes for fixing the top ends of the filter bag frames are evenly distributed on the partition board, and filter bags are sleeved outside the filter bag frames. An air inlet is arranged below the outer wall of the dust cleaning cavity, and an air outlet is arranged on the inner wall of the blowing cavity. The blowing assembly is arranged in the blowing cavity, and the blowing heads of the blowing assembly are arranged towards the connecting holes. The hopper is fixed at the bottom of the dust cleaning cavity. The outer end of the air inlet is connected with an air inlet pipe, and a one-way mechanism is arranged on the air inlet pipe. The one-way mechanism comprises a one-way box and a one-way plate. The one-way box is of a hollow square structure with a semi-circular bottom, and the outer diameter of its bottom is equal to the outer diameter of the air inlet pipe. The one-way plate is of a square structure with a semi-circular bottom, and the outer diameter of its bottom is smaller than the inner diameter of the bottom of the one-way box. The outer diameter of the bottom of the one-way plate is larger than the inner diameter of the air inlet pipe, and the top end of the one-way plate is hinged to the top of the outer end of the inner cavity of the one-way box.

[0007] An air outlet cavity communicated with the blowing cavity is arranged on the left side of the blowing cavity. The bottom plate of the air outlet cavity is flush with the partition board, and the air outlet is arranged on the bottom plate of the air outlet cavity.

[0008] A longitudinal plate is connected to the top of the right end of the bottom plate. A filter plate is fixed horizontally between the left inner wall of the longitudinal plate and the right inner wall of the air outlet cavity.

[0009] The blowing assembly comprises blowing heads, a blowing pipe, an electromagnetic pulse valve and an air bag. The air bag is fixed above the outer wall of the box body. The input end of the electromagnetic pulse valve is communicated with the air bag, and the output end of the electromagnetic pulse valve is communicated with the right end of the blowing pipe. The left end of the blowing pipe is a closed end, and the closed end of the blowing pipe is fixed to the top of the longitudinal plate through a fixing member. A plurality of the blowing heads communicated with the blowing pipe are arranged at equal intervals along the length direction below the outer wall of the blowing pipe.

[0010] The output end of the electromagnetic pulse valve is connected with an output pipe. The output pipe and the right end of the blowing pipe are connected through a rubber pipe. The outer diameters of the output pipe and the blowing pipe are equal. The inner diameter of the rubber pipe is not larger than the outer diameter of the output pipe. The inner walls of both ends of the rubber pipe are sleeved outside the output pipe and the blowing pipe respectively and then locked and connected through a clamp.

[0011] The left side of the top of the vertical plate is connected with a horizontal plate; the fixing member includes an angle plate, a wing bolt and a welding nut. The right side wall of the angle plate is fixedly connected with the closed end of the blowing pipe. Bolt holes for the screw rod of the wing bolt to pass through are arranged on the lower surface of the angle plate and the horizontal plate. The welding nut is fixed below the bolt hole of the horizontal plate, and the screw rod of the wing bolt is in threaded connection with the welding nut in a matching manner.

[0012] The top of the box body is open, and a box cover is arranged at the top opening. One end of the box cover is hinged to one end of the top of the box body, and the other end of the box cover is connected with the other end of the top of the box body through a buckle.

[0013] The beneficial effects of the utility model are as follows:

[0014] By arranging the one-way mechanism, the utility model can prevent the dust in the box body from blowing back to the air inlet pipe when there is no air intake.

[0015] The blowing pipe of the utility model is connected with the output pipe of the electromagnetic pulse valve through a rubber pipe, which can make up for manufacturing errors and provide an installation gap, and can also ensure that after installation, the blowing head on the blowing pipe can face downwards and be aligned with the filter bag.

[0016] After the wing bolt passes through the bolt holes of the angle plate and the horizontal plate and is locked with the welding nut, the utility model can play a role in fixing and positioning, ensuring that the fixed position of the blowing head can be aligned with the filter bag so as to clean the filter bag.

[0017] By arranging a box cover with an open top, the utility model is convenient for taking and placing the filter bag and also for maintenance. Description of the Drawings

[0018] Figure 1 is a schematic structural diagram of the utility model;

[0019] Figure 2 is a schematic structural diagram of the utility model with one side plate removed;

[0020] Figure 3 is a schematic structural diagram of the fixing member of the utility model;

[0021] Figure 4 is a schematic cross-sectional view of the one-way mechanism when the one-way plate is closed in the utility model;

[0022] Figure 5 is a schematic cross-sectional view of the one-way mechanism when the one-way plate is open in the utility model.

[0023] In the figure: 1 box body, 2 filter bag frame, 3 partition board, 4 ash hopper, 5 air inlet, 6 air outlet, 7 jetting assembly, 8 fixing part, 9 box cover, 10 intake pipe, 11 cleaning cavity, 12 jetting cavity, 13 air outlet cavity, 14 bottom plate, 15 longitudinal plate, 16 filter plate, 17 transverse plate, 71 jetting head, 72 jetting pipe, 73 electromagnetic pulse valve, 74 air receiver, 75 output pipe, 76 rubber pipe, 77 clamp, 78 connection hole, 81 angle plate, 82 wing bolt, 83 welding nut, 84 bolt hole, 18 one-way mechanism, 181 one-way box, 182 one-way plate, 183 through hole. Detailed implementation manner

[0024] The present utility model will be further described below:

[0025] Please refer to Figures 1-5 ,

[0026] The present utility model discloses a bag filter, which includes a box body 1, a filter bag frame 2, a partition board 3, an ash hopper 4, an air inlet 5, an air outlet 6 and a jetting assembly 7. The box body 1 is a square structure with a hollow bottom and an opening. The box body 1 is divided into a cleaning cavity 11 and a jetting cavity 12 by a partition board 3 arranged above its inner wall. A plurality of connection holes 78 for fixing the top end of the filter bag frame 2 are evenly distributed on the partition board 3. A filter bag is sleeved outside the filter bag frame 2. An air inlet 5 is arranged below the outer wall of the cleaning cavity 11, and an air outlet 6 is arranged on the inner wall of the jetting cavity 12. The jetting assembly 7 is arranged in the jetting cavity 12, and the jetting head 71 of the jetting assembly 7 faces the connection hole 78. The ash hopper 4 is fixed at the bottom of the cleaning cavity 11. The outer end of the air inlet 5 is connected with an intake pipe 10, and a one-way mechanism 18 is arranged on the intake pipe 10. The one-way mechanism 18 includes a one-way box 181 and a one-way plate 182. The one-way box 181 is a hollow square structure with a semi-circular bottom. Through holes 183 communicating with the inner cavity of the intake pipe 10 are arranged at both ends of the one-way box 181. The through holes 183 have the same inner diameter as the intake pipe 10 and are coaxial. The outer diameter of its bottom is equal to the outer diameter of the intake pipe 10. The one-way plate 182 is a square structure with a semi-circular bottom. The outer diameter of its bottom is smaller than the inner diameter of the bottom of the one-way box 181. The outer diameter of the bottom of the one-way plate 182 is larger than the inner diameter of the intake pipe 10. The top end of the one-way plate 182 is hinged to the top of the outer end of the inner cavity of the one-way box 181. By arranging the one-way mechanism 18, it can be avoided that the dust in the box body 1 blows back to the intake pipe 10 when there is no air intake. During operation, the air containing dust enters the bottom of the box body 1 through the intake pipe 10, is filtered by the filter bag outside the filter bag frame 2, and is discharged through the air outlet 6 of the cleaning cavity 11. When the dust on the filter bag reaches a certain amount, the jetting assembly 7 is started to jet the filter bag, and the dust attached to its surface is jetted into the ash hopper and discharged through the ash cleaner connected to the bottom of the ash hopper.

[0027] Further, an air outlet cavity 13 communicating with the blowing cavity 12 is provided on the left side of the blowing cavity 12. The bottom plate 14 of the air outlet cavity 13 is flush with the partition plate 3, and the air outlet 6 is provided on the bottom plate 14 of the air outlet cavity 13.

[0028] Further, a longitudinal plate 15 is connected to the top of the right end of the bottom plate 14. A filter plate 16 is fixed horizontally between the left inner wall of the longitudinal plate 15 and the right inner wall of the air outlet cavity 13, further improving the dust removal effect and making the air exiting from the air outlet 6 cleaner.

[0029] Further, the blowing assembly 7 includes a blowing head 71, a blowing pipe 72, an electromagnetic pulse valve 73 and an air bag 74. The air bag 74 is fixed above the outer wall of the box body 1. The input end of the electromagnetic pulse valve 73 communicates with the air bag 74, the output end of the electromagnetic pulse valve 73 communicates with the right end of the blowing pipe 72. The left end of the blowing pipe 72 is a closed end, and the closed end of the blowing pipe 72 is fixed to the top end of the longitudinal plate 15 through a fixing member 8. A plurality of blowing heads 71 communicating with the blowing pipe 72 are arranged at equal intervals along the length direction below the outer wall of the blowing pipe 72. During operation, the electromagnetic pulse valve 73 is started to output the gas in the air bag 74 to the blowing pipe 72, and the gas is sprayed onto the filter bag through the blowing heads 71, thereby cleaning the filter bag.

[0030] Further, an output pipe 75 is connected to the output end of the electromagnetic pulse valve 73. The output pipe 75 and the right end of the blowing pipe 72 are connected through a rubber pipe 76. The outer diameters of the output pipe 75 and the blowing pipe 72 are equal. The inner diameter of the rubber pipe 76 is not greater than the outer diameter of the output pipe 75. The inner walls of both ends of the rubber pipe 76 are respectively sleeved outside the output pipe 75 and the blowing pipe 72 and then locked and connected through a clamp 77. The connection between the blowing pipe 72 and the output pipe 75 of the electromagnetic pulse valve 73 through the rubber pipe 76 can compensate for manufacturing errors and provide an installation gap, and can also ensure that after installation, the blowing heads 71 on the blowing pipe 72 can face downward and align with the filter bag.

[0031] Further, a transverse plate 17 is connected to the top left side of the longitudinal plate 15; the fixing member 8 includes an angle plate 81, a wing nut 82 and a welding nut 83. The right side wall of the angle plate 81 is fixedly connected to the closed end of the blowing pipe 72. Bolt holes 84 for the screw rod of the wing nut 82 to pass through are provided on the lower surface of the angle plate 81 and the transverse plate 17. The welding nut 83 is fixed below the bolt hole 84 of the transverse plate 17. The screw rod of the wing nut 82 is threadedly connected with the welding nut 83 in a matching manner. By passing the wing nut 82 through the bolt holes 84 of the angle plate 81 and the transverse plate 17 and then locking and connecting with the welding nut 83, it can play a role in fixing and positioning, ensuring that the fixed position of the blowing heads 71 can align with the filter bag so as to clean the filter bag.

[0032] Furthermore, the top of the box body 1 is open, and a box cover 9 is provided at the top opening. One end of the box cover 9 is hinged to one end of the top of the box body 1, and the other end of the box cover 9 is connected to the other end of the top of the box body 1 through a lock. By providing the box cover 9 that can be opened at the top, it is convenient to take and place the filter bag and also convenient for maintenance.

[0033] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent transformation made by using the content of the specification and drawings of the present invention, or direct or indirect application in related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. A bag dust collector, characterized in that: It comprises a box body (1), a filter bag frame (2), a partition (3), an ash hopper (4), an air inlet (5), an air outlet (6) and a spray assembly (7). The box body (1) is a square structure with a hollow bottom and an opening. The box body (1) is divided into a cleaning chamber (11) and a blowing chamber (12) by a partition (3) arranged on the upper inner wall thereof. The partition (3) is evenly distributed with a plurality of connection holes (78) for fixing the top end of the filter bag frame (2). The filter bag frame (2) is provided with a filter bag on the outside. An air inlet (5) is provided below the outer wall of the cleaning chamber (11), and an air outlet (6) is provided on the inner wall of the blowing chamber (12). The blowing assembly (7) is arranged in the blowing chamber (12), and the blowing head (71) of the blowing assembly (7) is arranged toward the connection hole (78). The ash hopper (4) is fixed to the bottom of the cleaning chamber (11), and the outer end of the air inlet (5) is connected to an air inlet pipe (10). A one-way mechanism (18) is provided on the air intake pipe (10), the one-way mechanism (18) comprising a one-way box (181) and a one-way plate (182); the one-way box (181) is a hollow square structure with a semicircular bottom, the outer diameter of the bottom of which is equal to the outer diameter of the air intake pipe (10); through holes (183) communicating with the inner cavity of the air intake pipe (10) are provided at both ends of the one-way box (181); the through holes (183) are the same as the inner diameter of the air intake pipe (10) and are coaxial; the one-way plate (182) is a square structure with a semicircular bottom, the outer diameter of the bottom of which is smaller than the inner diameter of the bottom of the one-way box (181); the outer diameter of the bottom of the one-way plate (182) is larger than the inner diameter of the air intake pipe (10); the top end of the one-way plate (182) is hinged to the top of the outer end of the inner cavity of the one-way box (181).

2. A bag dust collector according to claim 1, characterized in that: An air outlet cavity (13) communicating with the air outlet cavity (12) is provided on the left side of the air outlet cavity (12); a bottom plate (14) of the air outlet cavity (13) is flush with the partition plate (3); and the air outlet (6) is provided on the bottom plate (14) of the air outlet cavity (13).

3. A bag dust collector according to claim 2, characterized in that: A longitudinal plate (15) is connected to the top of the right end of the bottom plate (14), and a filter plate (16) is fixed in a horizontal direction between the left inner wall of the longitudinal plate (15) and the right inner wall of the air outlet cavity (13).

4. A bag dust collector according to claim 3, characterized in that: The blowing assembly (7) comprises a blowing head (71), a blowing pipe (72), an electromagnetic pulse valve (73) and an air bag (74); the air bag (74) is fixed above the outer wall of the box body (1); the input end of the electromagnetic pulse valve (73) is connected to the air bag (74); the output end of the electromagnetic pulse valve (73) is connected to the right end of the blowing pipe (72); the left end of the blowing pipe (72) is a closed end; the closed end of the blowing pipe (72) is fixed to the top end of the longitudinal plate (15) by a fixing member (8); and a plurality of the blowing heads (71) connected to the blowing pipe (72) are arranged at equal intervals below the outer wall of the blowing pipe (72) along its length direction.

5. A bag dust collector according to claim 4, characterized in that: The output end of the electromagnetic pulse valve (73) is connected to an output pipe (75), and the output pipe (75) is connected to the right end of the blowing pipe (72) via a rubber pipe (76). The outer diameters of the output pipe (75) and the blowing pipe (72) are equal, and the inner diameter of the rubber pipe (76) is not greater than the outer diameter of the output pipe (75). The inner walls of both ends of the rubber pipe (76) are respectively sleeved onto the outside of the output pipe (75) and the blowing pipe (72) and then locked and connected via a clamp (77).

6. A bag dust collector according to claim 5, characterized in that: The left side of the top of the longitudinal plate (15) is connected to a transverse plate (17); the fixing member (8) comprises an angle plate (81), a butterfly bolt (82) and a welding nut (83); the right side wall of the angle plate (81) is fixedly connected to the closed end of the blowing pipe (72); a bolt hole (84) for the screw rod of the butterfly bolt (82) to pass through is provided on the lower surface of the angle plate (81) and the transverse plate (17); the welding nut (83) is fixed below the bolt hole (84) of the transverse plate (17); the screw rod of the butterfly bolt (82) is threadedly connected to the welding nut (83) in a matching manner.

7. A bag dust collector according to claim 1, characterized in that: The top of the box body (1) is open, and a box cover (9) is provided at the top opening; one end of the box cover (9) is hinged to one end of the top of the box body (1), and the other end of the box cover (9) is connected to the other end of the top of the box body (1) via a lock.

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