Powder spraying device of precoated sand tar and smoke dust remover

Abstract

The utility model discloses a powder spraying device of a precoated sand tar smoke dust remover, which relates to the technical field of powder spraying of dust removers and comprises a bag-type dust remover, a dust collecting hopper is arranged at the lower end of the bag-type dust remover, a smoke air inlet is arranged on one side of the bag-type dust remover, and a purification outlet is arranged on the other side of the bag-type dust remover. A lifting mechanism is arranged on the inner side of the upper end of the bag-type dust collector, and a linkage mechanism is arranged on the outer side of the lifting mechanism. By adopting the structure, the screw rod at the mounting groove of the bag-type dust collector rotates synchronously, so that the mounting frame connected with the mounting block in threaded connection with the outer side of the screw rod can be lifted, and when powder is sprayed on a bag, the mounting frame moves downwards, and meanwhile, the air spraying pipe connected with the connecting pipe of the compressed air bag on the bracket also moves downwards; meanwhile, the powder spraying head at the lower end of the air spraying pipe can extend into the cloth bag to perform large-area uniform powder spraying and cleaning treatment, so that the powder spraying and cleaning effect on the cloth bag can be improved.

Description

Technical Field

[0001] This utility model belongs to the field of dust collector powder spraying technology, and specifically relates to a powder spraying device for a coated sand tar dust collector. Background Technology

[0002] Coated sand tar dust collectors mainly include bag filters and cyclone dust collectors. These devices effectively separate tar dust from the gas through different working principles and methods, ensuring a clean and environmentally friendly production environment. The problem is that the sticky tar-containing flue gas generated in the core shooting machine adheres to the filter bags of the bag filter, increasing the filter bag resistance and even causing caking.

[0003] Chinese Patent Publication No. CN219848605U discloses a bag filter with an anti-sticking structure, comprising: a bag filter; a powder coating hopper containing powder, the powder coating hopper being connected to the dust collection chamber of the bag filter via a pipe, the powder in the powder coating hopper being used to coat the filter bags of the bag filter, and the powder in the powder coating hopper forming a powder cake layer on the outer surface of the filter bags of the bag filter; a pneumatic feeder being installed on the pipe connecting the powder coating hopper and the bag filter, and the pneumatic feeder using high negative pressure to transport the powder in the powder coating hopper to the dust collection chamber of the bag filter; and a differential pressure detector being installed on the dust collection chamber and the upper chamber of the bag filter, and the differential pressure detector being used to detect the pressure difference between the dust collection chamber and the upper chamber of the bag filter, and the differential pressure detector detecting a low pressure difference.

[0004] In the aforementioned existing bag filter technology, the air output is controlled by an electromagnetic pulse valve so that the nozzles connected to the blowpipe can blow away the dust adhering to the filter bag. However, in actual operation, we have found that there are still some shortcomings in the existing technology. For example, the existing powder spraying device is generally fixed directly above the filter bag and sprays directly onto the filter bag. This spraying method is prone to uneven spraying and the spraying area is small, which cannot reach the dust particles on the lower surface of the filter bag. Utility Model Content

[0005] In view of the problems mentioned in the background art, the purpose of this utility model is to provide a powder spraying device for a coated sand tar dust collector, so as to solve the problems mentioned in the background art.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0007] The powder spraying device of the coated sand tar dust collector includes a bag filter. The lower end of the bag filter is equipped with a dust collection hopper. One side of the bag filter is equipped with a dust inlet, and the other side of the bag filter is equipped with a purification outlet. The upper inner side of the bag filter is equipped with a lifting mechanism, and the outer side of the lifting mechanism is equipped with a linkage mechanism. The upper end of the lifting mechanism is fixedly mounted with a bracket, and the upper end of the bracket is fixedly mounted with a compressed air manifold. The lower end of the compressed air manifold is fixedly mounted with a connecting pipe, and the lower end of the connecting pipe is fixedly mounted with a jet pipe. The lower end of the jet pipe is fixedly mounted with a powder spraying head, and the outer side of the connecting pipe is equipped with an electromagnetic pulse valve.

[0008] The lifting mechanism includes a mounting slot and a mounting frame. The mounting slot is symmetrically opened on the inner side of the bag filter. A screw is rotatably connected to the inner side of the mounting slot. The bracket is fixedly installed on the upper end of the mounting frame. Mounting blocks are symmetrically fixedly connected to the outer side of the mounting frame. The mounting blocks are threaded to the outer side of the screw. A sliding rod is symmetrically fixedly installed on the inner side of the mounting slot. The mounting blocks are slidably connected to the outer side of the sliding rod. The linkage mechanism is provided with the upper end of the screw. Through the lifting mechanism, the entire bracket part can be easily raised and lowered. It also makes it convenient for the powder spraying head connected to the lower end of the jet pipe to extend into the bag to clean the dust adhering to the bag more evenly.

[0009] The linkage mechanism includes an installation cavity and an installation shell. The installation cavity is symmetrically located inside the bag filter. A second linkage rod is rotatably connected to the inner side of the installation cavity. A third bevel gear is fixedly installed inside the installation cavity at the upper end of the screw. The installation shell is fixedly installed on the back of the bag filter. One end of the second linkage rod extends into the inner side of the installation shell. A second bevel gear is fixedly installed at each end of the second linkage rod. A first linkage rod is rotatably connected to the inner side of the installation shell. A drive motor is fixedly installed on the outer side of the installation shell. One end of the first linkage rod passes through the shell wall of the installation shell and is fixedly installed to the output end of the drive motor. A first bevel gear is fixedly installed on the outer side of the first linkage rod. One end of the second linkage rod is connected to the third bevel gear through meshing. The other end of the second linkage rod is connected to the first bevel gear through meshing. Through the linkage mechanism, the lifting mechanism can be easily controlled to perform lifting and lowering operations.

[0010] As a preferred technical solution, the bracket is U-shaped, and a rectangular hole is provided on the inner side of the bracket. The end of the connecting pipe near the compressed air package passes through the rectangular hole, so that the connecting pipe on the compressed air package can easily pass through the bracket.

[0011] As a preferred technical solution, the lower end of the bracket is symmetrically fixedly connected with a fixing block. The fixing block has a fixing hole on its inner side. The fixing block is fixedly installed to the upper end of the mounting frame by screws passing through the fixing hole. The fixing block can be used to easily install the bracket on the mounting frame.

[0012] As a preferred technical solution, a threaded sleeve is fixedly installed on the inner side of the mounting block, and the mounting block is threadedly connected to the outer side of the screw rod through the threaded sleeve. The threaded sleeve allows the mounting block to be easily threadedly connected to the outer side of the screw rod.

[0013] As a preferred technical solution, the mounting block is provided with symmetrical sliding holes on its inner side. The mounting block is slidably connected to the outside of the slide rod through the sliding holes, which allows the mounting block to slide easily on the slide rod.

[0014] As a preferred technical solution, a bearing seat is symmetrically fixedly installed on the inner side of the mounting cavity, and the second linkage rod is rotatably connected to the inner side of the bearing seat. The ends of the second linkage rod all pass through the bearing seat. The stability of the second linkage rod can be further improved through the bearing seat.

[0015] In summary, the present invention has the following main advantages:

[0016] First, by using the screw at the mounting slot of the bag filter to rotate synchronously, the mounting frame connected to the threaded mounting block on the outside of the screw can be raised and lowered. When spraying powder on the bag, the mounting frame moves down, and at the same time, the air jet pipe connected to the compressed air tank on the bracket also moves down. Meanwhile, the powder spraying head at the lower end of the air jet pipe can be inserted into the bag to perform large-area uniform powder spraying and cleaning treatment, thereby improving the powder spraying and cleaning effect on the bag.

[0017] Secondly, the output end of the drive motor drives the first linkage rod in the mounting shell to rotate. The rotation of the first linkage rod causes the first bevel gear on the outside to mesh with the second bevel gear at one end of the second linkage rod. The second linkage rod is rotatably connected to the inside of the mounting cavity. At the same time, the second bevel gear at the other end of the second linkage rod meshes with the third bevel gear on the transmission screw, so that the two screws run synchronously in the bag filter dust collector, thereby facilitating the lifting and lowering operation of the mounting frame with the powder spraying head. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the mounting groove structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the mounting frame structure of this utility model;

[0021] Figure 4This is a schematic diagram of the linkage mechanism of this utility model.

[0022] Reference numerals in the attached drawings: 1. Baghouse dust collector; 2. Dust hopper; 3. Dust inlet; 4. Purified exhaust outlet; 5. Linkage mechanism; 501. Mounting housing; 502. First bevel gear; 503. Second bevel gear; 504. First linkage rod; 505. Drive motor; 506. Second linkage rod; 507. Third bevel gear; 508. Mounting cavity; 6. Lifting mechanism; 601. Mounting groove; 602. Screw; 603. Slide rod; 604. Mounting frame; 605. Mounting block; 7. Electromagnetic pulse valve; 8. Bracket; 9. Compressed air tank; 10. Connecting pipe; 11. Jet pipe; 12. Powder spraying head; 13. Sliding hole; 14. Screw sleeve; 15. Rectangular hole; 16. Fixing block; 17. Fixing hole; 18. Shaft seat. Detailed Implementation

[0023] refer to Figures 1 to 4 The powder spraying device of the coated sand tar dust collector described in this embodiment includes a bag filter 1. The lower end of the bag filter 1 is provided with a dust collection hopper 2. One side of the bag filter 1 is provided with a dust inlet 3. The other side of the bag filter 1 is provided with a purification outlet 4. The upper inner side of the bag filter 1 is provided with a lifting mechanism 6. The outer side of the lifting mechanism 6 is provided with a linkage mechanism 5. The upper end of the lifting mechanism 6 is fixedly installed with a bracket 8. The upper end of the bracket 8 is fixedly installed with a compressed air tank 9. The lower end of the compressed air tank 9 is fixedly installed with a connecting pipe 10. The lower end of the connecting pipe 10 is fixedly installed with a jet pipe 11. The lower end of the jet pipe 11 is fixedly installed with a powder spraying head 12. The outer side of the connecting pipe 10 is provided with an electromagnetic pulse valve 7.

[0024] The lifting mechanism 6 includes a mounting groove 601 and a mounting frame 604. The mounting groove 601 is symmetrically opened on the inner side of the bag filter 1. A screw 602 is rotatably connected to the inner side of the mounting groove 601. A bracket 8 is fixedly installed on the upper end of the mounting frame 604. Mounting blocks 605 are symmetrically fixedly connected to the outer side of the mounting frame 604. The mounting blocks 605 are threadedly connected to the outer side of the screw 602. A sliding rod 603 is symmetrically fixedly installed on the inner side of the mounting groove 601. The mounting blocks 605 are slidably connected to the outer side of the sliding rod 603. The linkage mechanism 5 is provided with the upper end of the screw 602. The screw 602 at the mounting groove 601 of the bag filter 1 is used to lift the bag filter 1. 02. Synchronous rotation allows the mounting frame 604 connected to the screw 602 outer threaded connection mounting block 605 to rise and fall. When the bag is being powdered, the mounting frame 604 moves down, and at the same time, the air jet pipe 11 connected to the compressed air tank 9 on the bracket 8 also moves down. Meanwhile, the powder spraying head 12 at the lower end of the air jet pipe 11 can extend into the bag to perform large-area uniform powder spraying and cleaning, thereby improving the powder spraying and cleaning effect on the bag. The nozzles of the powder spraying head 12 are all tilted downwards, and there is also a nozzle at the lower end of the powder spraying head 12, which can ensure the cleaning effect on the bottom of the bag.

[0025] The linkage mechanism 5 includes a mounting cavity 508 and a mounting shell 501. The mounting cavities 508 are symmetrically located inside the bag filter 1. A second linkage rod 506 is rotatably connected to the inner side of the mounting cavity 508. A third bevel gear 507 is fixedly mounted on the upper end of the screw 602 extending into the inner side of the mounting cavity 508. The mounting shell 501 is fixedly mounted on the back of the bag filter 1. One end of the second linkage rod 506 extends into the inner side of the mounting shell 501. A second bevel gear 503 is fixedly mounted on each end of the second linkage rod 506. A first linkage rod 504 is rotatably connected to the inner side of the mounting shell 501. A drive motor 505 is fixedly mounted on the outer side of the mounting shell 501. One end of the first linkage rod 504 passes through the shell wall of the mounting shell 501 and is fixedly mounted to the output end of the drive motor 505. A first bevel gear 507 is fixedly mounted on the outer side of the first linkage rod 504. 02. One end of the second linkage rod 506 is connected to the second bevel gear 503 and the third bevel gear 507 through meshing. The other end of the second linkage rod 506 is connected to the first bevel gear 502 through meshing. The output end of the drive motor 505 drives the first linkage rod 504 in the mounting housing 501 to rotate. The rotation of the first linkage rod 504 causes the outer first bevel gear 502 to mesh with the second bevel gear 503 at one end of the second linkage rod 506. The second linkage rod 506 is rotatably connected to the inside of the mounting cavity 508. At the same time, the second bevel gear 503 at the other end of the second linkage rod 506 meshes with the third bevel gear 507 on the drive screw 602, so that the two screws 602 run synchronously in the bag filter dust collector 1, thereby facilitating the lifting and lowering operation of the mounting frame 604 with the powder spraying head 12.

[0026] refer to Figure 3 The bracket 8 is U-shaped, and a rectangular hole 15 is provided on the inner side of the bracket 8. The end of the connecting pipe 10 near the compressed air package 9 passes through the rectangular hole 15. The rectangular hole 15 on the bracket 8 allows the connecting pipe 10 on the compressed air package 9 to pass through the bracket 8 easily.

[0027] refer to Figure 3 The lower end of the bracket 8 is symmetrically fixedly connected with a fixing block 16. The fixing block 16 has a fixing hole 17 on its inner side. The fixing block 16 is fixedly installed to the upper end of the mounting frame 604 by screws passing through the fixing hole 17. The bracket 8 can be easily installed on the mounting frame 604 by using the fixing block 16 with the fixing hole 17.

[0028] refer to Figure 3A screw sleeve 14 is fixedly installed on the inner side of the mounting block 605. The mounting block 605 is threadedly connected to the outer side of the screw rod 602 through the screw sleeve 14. The mounting block 605 with the screw sleeve 14 can be easily threadedly connected to the outer side of the screw rod 602. The inner side of the mounting block 605 is symmetrically provided with sliding holes 13. The mounting block 605 is slidably connected to the outer side of the slide rod 603 through the sliding holes 13. The sliding holes 13 on the mounting block 605 can be easily slid on the outer side of the slide rod 603.

[0029] refer to Figure 4 A bearing seat 18 is symmetrically fixedly installed on the inner side of the mounting cavity 508. The second linkage rod 506 is rotatably connected to the inner side of the bearing seat 18. The ends of the second linkage rod 506 all pass through the bearing seat 18. By rotating the second linkage rod 506 in the bearing seat 18 of the mounting cavity 508, the stability of the second linkage rod 506 can be improved.

[0030] Operating principle and advantages: During operation, the output of the drive motor 505 first drives the first linkage rod 504 in the mounting housing 501 to rotate. The rotation of the first linkage rod 504 causes the outer first bevel gear 502 to mesh with the second bevel gear 503 at one end of the second linkage rod 506. The second linkage rod 506 is rotatably connected to the inside of the mounting cavity 508. At the same time, the second bevel gear 503 at the other end of the second linkage rod 506 meshes with the third bevel gear 507 on the drive screw 602, so that the two screws 602 run synchronously in the bag filter dust collector 1.

[0031] When the cloth bag is powder sprayed, the mounting frame 604 moves down, and at the same time, the air jet pipe 11 connected to the connecting pipe 10 of the compressed air tank 9 on the bracket 8 also moves down. Meanwhile, the powder spraying head 12 at the lower end of the air jet pipe 11 can be inserted into the cloth bag to perform large-area uniform powder spraying and cleaning treatment.

Claims

1. A powder spraying device for a coated sand tar dust collector, comprising a bag filter (1), characterized in that: The lower end of the bag filter (1) is provided with a dust collection hopper (2), one side of the bag filter (1) is provided with a dust inlet (3), the other side of the bag filter (1) is provided with a purification outlet (4), the upper inner side of the bag filter (1) is provided with a lifting mechanism (6), the outer side of the lifting mechanism (6) is provided with a linkage mechanism (5), the upper end of the lifting mechanism (6) is fixedly installed with a bracket (8), the upper end of the bracket (8) is fixedly installed with a compressed air tank (9), the lower end of the compressed air tank (9) is fixedly installed with a connecting pipe (10), the lower end of the connecting pipe (10) is fixedly installed with a jet pipe (11), the lower end of the jet pipe (11) is fixedly installed with a powder spraying head (12), and the outer side of the connecting pipe (10) is provided with an electromagnetic pulse valve (7). The lifting mechanism (6) includes a mounting groove (601) and a mounting frame (604). The mounting groove (601) is symmetrically opened on the inner side of the bag filter (1). A screw (602) is rotatably connected to the inner side of the mounting groove (601). The bracket (8) is fixedly installed on the upper end of the mounting frame (604). A mounting block (605) is symmetrically fixedly connected to the outer side of the mounting frame (604). The mounting block (605) is threadedly connected to the outer side of the screw (602). A sliding rod (603) is symmetrically fixedly installed on the inner side of the mounting groove (601). The mounting block (605) is slidably connected to the outer side of the sliding rod (603). The linkage mechanism (5) is provided with the upper end of the screw (602).

2. The powder spraying device for the coated sand tar dust collector according to claim 1, characterized in that: The bracket (8) is U-shaped, and a rectangular hole (15) is provided on the inner side of the bracket (8). The end of the connecting pipe (10) near the compressed air package (9) passes through the rectangular hole (15).

3. The powder spraying device for the coated sand tar dust collector according to claim 1, characterized in that: The lower end of the bracket (8) is symmetrically fixedly connected with a fixing block (16), and a fixing hole (17) is opened on the inner side of the fixing block (16). The fixing block (16) is fixedly installed by screws passing through the fixing hole (17) and the upper end of the mounting frame (604).

4. The powder spraying device for the coated sand tar dust collector according to claim 1, characterized in that: A screw sleeve (14) is fixedly installed on the inner side of the mounting block (605), and the mounting block (605) is threadedly connected to the outer side of the screw rod (602) through the screw sleeve (14).

5. The powder spraying device for the coated sand tar dust collector according to claim 1, characterized in that: The mounting block (605) has symmetrical sliding holes (13) on its inner side, and the mounting block (605) is slidably connected to the outside of the slide rod (603) through the sliding holes (13).

6. The powder spraying device for the coated sand tar dust collector according to claim 1, characterized in that: The linkage mechanism (5) includes a mounting cavity (508) and a mounting shell (501). The mounting cavity (508) is symmetrically opened inside the bag filter (1). A second linkage rod (506) is rotatably connected to the inner side of the mounting cavity (508). The upper end of the screw (602) extends into the inner side of the mounting cavity (508) and is fixedly installed with a third bevel gear (507). The mounting shell (501) is fixedly installed on the back of the bag filter (1). One end of the second linkage rod (506) extends into the inner side of the mounting shell (501). A second bevel gear (503) is fixedly installed at each end of the second linkage rod (506). A first linkage rod (504) is rotatably connected to the inner side of the mounting shell (501), and a drive motor (505) is fixedly installed on the outer side of the mounting shell (501). One end of the first linkage rod (504) passes through the shell wall of the mounting shell (501) and is fixedly installed at the output end of the drive motor (505). A first bevel gear (502) is fixedly installed on the outer side of the first linkage rod (504). One end of the second linkage rod (506) is connected by meshing with the second bevel gear (503) and the third bevel gear (507). The other end of the second linkage rod (506) is connected by meshing with the second bevel gear (503) and the first bevel gear (502).

7. The powder spraying device for the coated sand tar dust collector according to claim 6, characterized in that: The mounting cavity (508) is symmetrically fixedly mounted with a bearing seat (18), and the second linkage rod (506) is rotatably connected to the inside of the bearing seat (18). The ends of the second linkage rod (506) all pass through the bearing seat (18).

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