Dust removal system of grinding workshop

Abstract

The invention relates to the technical field of dust removal devices, in particular to a dust removal system of a grinding workshop, which comprises a dust removal box, a sealing structure, a fixing structure, a filtering structure, a mounting structure, a back flushing structure, a limiting structure, an air inlet pipe, an air outlet pipe, a dust deposition hopper, a discharge valve and supporting legs. When a filtering assembly in the filtering structure needs to be replaced, the sealing structure can be quickly unfixed through the fixing structure, and then the sealing structure can be taken down from the top end of the dust removal box, so that quick disassembly of the sealing structure is realized, and the filtering assembly in the filtering structure is convenient to replace; the filter assembly in the filter structure can be regularly cleaned through the back flushing structure, so that the filter structure can continuously filter dust, and the back flushing structure can quickly deviate from the top end of the filter assembly through the limiting structure, so that the filter assembly in the filter structure can be conveniently replaced.

Description

Technical Field

[0001] The invention relates to the technical field of dust removal devices, in particular to a dust removal system for a grinding workshop. Background Art

[0002] In the process of steel production, a large amount of steel slag tailings will be generated. The steel slag tailings are ground into powder by ball mill to generate micro-powder products, which can solve the shortcomings of steel slag such as large composition fluctuations, poor grindability and poor stability, increase the added value of steel slag tailings, and realize its resource and product utilization. The ball mill will generate a lot of dust in the process of grinding steel slag tailings. Therefore, in order to improve the environmental protection of production, it is necessary to build a dust removal system in the grinding workshop. The dust removal system is generally composed of a dust hood, a dust conveying pipeline, a bag dust collector and a negative pressure fan. The dust hood will be installed in the place where dust is generated. The dust generated by the negative pressure fan will enter the dust conveying pipeline from the dust hood, and then enter the bag dust collector, and be removed by the bag dust collector. The purified air is finally discharged from the negative pressure fan, thereby realizing the purification and dust removal of the air in the grinding workshop.

[0003] However, when the bag inside a traditional bag dust collector needs to be replaced, it still needs to use a wrench of specific specifications to spend a lot of time repeatedly twisting multiple bolts to remove the cover on the top, which wastes a certain amount of time and physical strength, is not convenient for quick removal of the cover, and thus is not convenient for replacement of the bag. In addition, a pulse back-blowing nozzle is generally provided on the top of the bag for regular cleaning of dust on the surface of the filter bag. When replacing the bag, it is also necessary to spend a lot of time disassembling the pulse back-blowing air pipe before the filter bag can be replaced, which wastes a certain amount of time and results in low efficiency in bag replacement. Summary of the invention

[0004] In view of the problems in the prior art, the present invention provides a dust removal system for a grinding workshop.

[0005] The technical solution adopted by the present invention to solve the technical problem is: a dust removal system for a grinding workshop, comprising a dust removal box, a sealing structure is provided on the dust removal box, a fixing structure is provided on the dust removal box, a filtering structure is provided inside the dust removal box, a mounting structure is provided on the filtering structure, a back-blowing structure is provided on the dust removal box, a limiting structure is provided on the back-blowing structure, an air inlet pipe is fixedly connected to the bottom end of one side of the dust removal box, an air outlet pipe is fixedly connected to the top end of the other side of the dust removal box, an ash hopper is fixedly installed at the bottom end of the dust removal box, a discharge valve is installed at the bottom end of the ash hopper, and four supporting legs are fixedly connected to the ash hopper;

[0006] The fixed structure includes a slot plate, and two slot plates are fixedly connected to the top ends of both sides of the dust removal box, and two movable plates are slidably connected between the two slot plates. A screw is threadedly connected to the movable plate, and a pressure block is rotatably connected to the bottom end of the screw, and the pressure block abuts against the sealing structure.

[0007] Specifically, the cross section of the end of the movable plate is L-shaped, the screw is arranged in the middle of the movable plate, one end of the screw is fixedly connected to a rotating rod, and the rotating rod passes through the screw and is perpendicular to the screw.

[0008] Specifically, the sealing structure includes a cover plate and a handle. Two cover plates are clamped on the top of the dust removal box. The cover plate is fixedly connected with a handle. A groove is provided on the cover plate, and the groove is clamped with the pressing block.

[0009] Specifically, a sealing gasket is clamped on the cover plate, and the sealing gasket is in contact with the top of the dust removal box.

[0010] Specifically, the filtering structure includes a support plate and a filter bag. The dust removal box is fixedly connected to the inside with a support plate, a plurality of filter bags are sleeved on the support plate, a support frame is provided on the inner side of the filter bag, and the inner side of the top end of the support frame is in conflict with the filter bag.

[0011] Specifically, the mounting structure includes a pressure ring and a connecting piece. The top end of the support frame is in contact with the pressure ring. Two connecting pieces are fixedly connected to the pressure ring. A connecting shaft passes through the connecting piece. A clamping block is fixedly connected to the connecting shaft. A connecting sleeve is provided at the bottom end of the connecting shaft. The connecting sleeve is fixedly connected to the support plate. The connecting shaft is slidably connected to the connecting sleeve. The clamping block is engaged with the connecting sleeve. A knob is threadedly connected to the connecting shaft, and the knob is in contact with the pressure ring.

[0012] Specifically, the two connecting pieces are symmetrically distributed about the middle of the pressure ring, and the cross section between the connecting shaft and the clamping block is an L-shaped structure.

[0013] Specifically, the back-blowing structure includes a high-pressure gas cylinder and a pulse valve. The dust removal box is equipped with a high-pressure gas cylinder. A plurality of pulse valves are installed on the high-pressure gas cylinder. A first connecting pipe is fixedly connected to the pulse valve. The first connecting pipe is fixedly connected to the dust removal box. The end of the first connecting pipe is rotatably connected to a second connecting pipe. A plurality of nozzles are installed on the second connecting pipe. The nozzles are located directly above adjacent filter bags. The cross-section of one end of the second connecting pipe is an L-shaped structure.

[0014] Specifically, the limiting structure includes a connecting plate and an insertion rod, the second connecting tube is fixedly connected to the connecting plate, the connecting plate is slidably connected to the insertion rod, a return spring is provided on the outer sleeve of the insertion rod, one end of the return spring is fixedly connected to the connecting plate, the other end of the return spring is fixedly connected to the insertion rod, the first connecting tube is fixedly connected to a connecting ring, the connecting ring is provided with four slots, and one end of the insertion rod is engaged with one of the slots.

[0015] Specifically, the four slots are distributed in a circular array about the center of the connecting ring, the cross section of one end of the insertion rod is a T-shaped structure, and the cross section of the other end of the insertion rod is a trapezoidal structure.

[0016] The beneficial effects of the present invention are:

[0017] (1) The dust removal system for a grinding workshop described in the present invention can seal the top of the dust removal box through a sealing structure. When the filter component inside the filter structure needs to be replaced, the sealing structure can be quickly released through the fixing structure, and then the sealing structure can be removed from the top of the dust removal box, thereby achieving rapid disassembly of the sealing structure, thereby facilitating the replacement of the filter component inside the filter structure.

[0018] (2) The dust removal system for a grinding workshop described in the present invention can filter and remove dust in the air through a filtering structure, and can realize rapid disassembly of the filtering components inside the filtering structure through an installation structure, thereby facilitating replacement of the filtering components inside the filtering structure.

[0019] (3) The dust removal system for a grinding workshop described in the present invention can regularly clean the filter components inside the filter structure through the back-blowing structure, so that the filter structure can continue to filter dust. The back-blowing structure can quickly deviate from the top of the filter component through the limiting structure, so as to facilitate the replacement of the filter components inside the filter structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0021] Figure 1 A schematic diagram of the overall structure of a preferred embodiment of a dust removal system for a grinding workshop provided by the present invention;

[0022] Figure 2 for Figure 1 An enlarged schematic diagram of part A is shown;

[0023] Figure 3 It is a schematic diagram of the connection structure between the insertion rod and the return spring of the present invention;

[0024] Figure 4It is a schematic diagram of the connection structure between the dust hopper and the discharge valve of the present invention;

[0025] Figure 5 for Figure 4 An enlarged schematic diagram of part B is shown;

[0026] Figure 6 for Figure 4 An enlarged schematic diagram of part C is shown;

[0027] Figure 7 for Figure 4 An enlarged schematic diagram of the D portion shown;

[0028] Figure 8 It is a schematic diagram of the connection structure between the clamping block and the connecting sleeve of the present invention;

[0029] Fig. 9 It is a schematic diagram of the connection structure between the dust removal box and the air intake pipe of the present invention.

[0030] In the figure: 1. dust removal box; 2. sealing structure; 201. cover plate; 202. handle; 203. sealing pad; 204. groove; 3. fixing structure; 301. slot plate; 302. moving plate; 303. rotating rod; 304. screw; 305. pressing block; 4. filtering structure; 401. supporting plate; 402. filter bag; 403. supporting frame; 5. mounting structure; 501. pressing ring; 502. connecting piece; 503. connecting shaft; 504. 04. Block; 505. Connecting sleeve; 506. Knob; 6. Back-blowing structure; 601. High-pressure gas cylinder; 602. Pulse valve; 603. First connecting pipe; 604. Second connecting pipe; 605. Nozzle; 7. Limiting structure; 701. Connecting plate; 702. Insert rod; 703. Return spring; 704. Connecting ring; 705. Slot; 8. Inlet pipe; 9. Outlet pipe; 10. Ash hopper; 11. Discharge valve; 12. Support leg. DETAILED DESCRIPTION

[0031] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0032] like Figure 1 , Figure 2 , Figure 4 , Figure 6 , Figure 7 and Fig. 9As shown, a dust removal system for a grinding workshop described in the present invention comprises a dust removal box 1, a sealing structure 2 is provided on the dust removal box 1, a fixing structure 3 is provided on the dust removal box 1, a filtering structure 4 is provided inside the dust removal box 1, a mounting structure 5 is provided on the filtering structure 4, a back-blowing structure 6 is provided on the dust removal box 1, a limiting structure 7 is provided on the back-blowing structure 6, an air inlet pipe 8 is fixedly connected to the bottom end of one side of the dust removal box 1, an air outlet pipe 9 is fixedly connected to the top end of the other side of the dust removal box 1, an ash hopper 10 is fixedly installed at the bottom end of the dust removal box 1, a discharge valve 11 is installed at the bottom end of the ash hopper 10, and four supporting legs 12 are fixedly connected to the ash hopper 10;

[0033] The fixing structure 3 includes a slot plate 301, such as Figure 1 , Figure 2 , Figure 4 , Figure 6 and Figure 7 As shown, two groove plates 301 are fixedly connected to the top of both sides of the dust removal box 1, and two movable plates 302 are slidably connected between the two groove plates 301. The movable plates 302 are threadedly connected with screws 304, and the bottom ends of the screws 304 are rotatably connected with a pressing block 305, and the pressing block 305 abuts against the sealing structure 2. The cross-section of the end of the movable plate 302 is an L-shaped structure, and the screw 304 is arranged in the middle of the movable plate 302. One end of the screw 304 is fixedly connected with a rotating rod 303, and the rotating rod 303 penetrates the screw 304 and is perpendicular to the screw 304. The sealing structure 2 includes a cover plate 201 and a handle 202. Two cover plates 201 are clamped on the top of the dust removal box 1, and the handle 202 is fixedly connected to the cover plate 201. The cover plate 201 is provided with a groove 204, and the groove 204 is engaged with the pressing block 305. The sealing gasket 203 is in conflict with the top of the dust removal box 1, that is, when the filter bag 402 needs to be replaced, the screw 304 can be rotated by the rotating rod 303, and the screw 304 will drive the pressing block 305 to move away from the cover plate 201. When the pressing block 305 is disengaged from the groove 204, the movable plate 302 can be pushed to slide on the two groove plates 301. When the movable plate 302 deviates to the top of the cover plate 201, the cover plate 201 can be moved by holding the handle 202, so as to realize the rapid disassembly of the cover plate 201. By quickly disassembling the cover plate 201, the time for replacing the filter bag 402 can be shortened, thereby improving the efficiency of replacing the filter bag 402. During the installation of the cover plate 201, the pressing block 305 can be limited by the engagement between the pressing block 305 and the groove 204. After the installation is completed, the sealing gasket 203 can be used to improve the sealing between the cover plate 201 and the dust removal box 1.

[0034] Specifically, Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 8 and Fig. 9 As shown, the filtering structure 4 includes a support plate 401 and a filter bag 402, the interior of the dust removal box 1 is fixedly connected with the support plate 401, a plurality of filter bags 402 are sleeved on the support plate 401, a support frame 403 is provided on the inner side of the filter bag 402, the inner side of the top of the support frame 403 is in conflict with the filter bag 402, the mounting structure 5 includes a pressing ring 501 and a connecting piece 502, the top of the support frame 403 is in conflict with the pressing ring 501, two connecting pieces 502 are fixedly connected to the pressing ring 501, a connecting shaft 503 is passed through the connecting piece 502, a block 504 is fixedly connected to the connecting shaft 503, and a connecting shaft 503 is provided at the bottom end thereof. The sleeve 505 is fixedly connected to the support plate 401, the connecting shaft 503 is slidably connected to the connecting sleeve 505, the block 504 is engaged with the connecting sleeve 505, the connecting shaft 503 is threadedly connected with a knob 506, the knob 506 and the pressure ring 501 are in conflict, the two connecting pieces 502 are symmetrically distributed about the middle of the pressure ring 501, and the cross-section between the connecting shaft 503 and the block 504 is an L-shaped structure, that is, during use, the dust conveying duct can be connected to the air inlet pipe 8, and the air inlet duct of the negative pressure fan can be connected to the air outlet pipe 9, so under the action of the negative pressure fan, the dust will enter the interior of the dust removal box 1 along with the gas, and the air in The dust will be filtered by the filter bag 402 when passing through the filter bag 402, and the filtered air will be discharged from the exhaust pipe 9, thereby realizing dust removal. The support frame 403 can be provided to support the filter bag 402, so as to prevent the filter bag 402 from deforming under a large negative pressure, thereby effectively improving the stability of use. When the filter bag 402 needs to be taken out from the inside of the support plate 401 for replacement, it can be replaced by turning one of the knobs 506. When the knob 506 and the connecting piece 502 are not tightly abutted, the rotation of the knob 506 will drive the block 504 to rotate together until the block 504 and the connecting sleeve 505 are in conflict, and then the above operation is repeated to make the other block 504 contact with the other connecting sleeve The sleeve 505 contacts each other, and then the pressure ring 501 can be moved to separate the connecting shaft 503 and the connecting sleeve 505, thereby realizing the quick disassembly of the pressure ring 501, avoiding the need to twist the knob 506 off the connecting shaft 503, reducing the number of turns of twisting the knob 506, and the pressure ring 501 can be connected with other small fixed parts after disassembly, thereby preventing small parts from falling into the dust removal box 1, making it more convenient to use, and when the pressure ring 501 is removed, the support frame 403 can be taken out from the inside of the filter bag 402, and finally the filter bag 402 is taken out from the support plate 401, thereby realizing the disassembly of the filter bag 402 and facilitating the replacement of the filter bag 402.

[0035] Specifically, Figure 1 , Figure 2 , Figure 3 and Fig. 9 As shown, the back-blowing structure 6 includes a high-pressure gas cylinder 601 and a pulse valve 602. The dust removal box 1 is equipped with a high-pressure gas cylinder 601, and a plurality of pulse valves 602 are installed on the high-pressure gas cylinder 601. The pulse valve 602 is fixedly connected with a first connecting pipe 603, and the first connecting pipe 603 is fixedly connected to the dust removal box 1. The end of the first connecting pipe 603 is rotatably connected with a second connecting pipe 604, and a plurality of nozzles 605 are installed on the second connecting pipe 604. The nozzle 605 is located directly above the adjacent filter bag 402. The cross-section of one end of the second connecting pipe 604 is an L-shaped structure. The limiting structure 7 The second connecting tube 604 includes a connecting plate 701 and a plug rod 702. The connecting plate 701 is fixedly connected to the second connecting tube 604. The plug rod 702 is slidably connected to the connecting plate 701. A reset spring 703 is sleeved on the outside of the plug rod 702. One end of the reset spring 703 is fixedly connected to the connecting plate 701. The other end of the reset spring 703 is fixedly connected to the plug rod 702. The first connecting tube 603 is fixedly connected to a connecting ring 704. The connecting ring 704 is provided with four slots 705. One end of the plug rod 702 is engaged with one of the slots 705. The four slots 705 are about the connecting ring 704. The center of the plug rod 702 is arranged in a circular array, the cross section of one end of the plug rod 702 is a T-shaped structure, and the cross section of the other end of the plug rod 702 is a trapezoidal structure, that is: when the filter bag 402 needs to be cleaned, the high-pressure gas in the high-pressure gas cylinder 601 will enter the first connecting pipe 603 under the action of the pulse valve 602, and then enter the second connecting pipe 604 from the first connecting pipe 603, and finally be ejected from multiple nozzles 605. The ejected high-pressure gas will back-blow the filter bag 402, thereby realizing the cleaning of the filter bag 402. The filter bag 402 can be cleaned regularly by cleaning the filter bag 402. Continuous filtration is carried out, thereby effectively improving the dust removal efficiency. When the filter bag 402 needs to be replaced, the rod 702 can be pulled to extend the return spring 703. When one end of the rod 702 is not engaged with one of the slots 705, the second connecting tube 604 can be rotated. When the second connecting tube 604 is rotated ninety degrees, the rod 702 will be engaged with another slot 705 again under the action of the return spring 703. At this time, the second connecting tube 604 deviates from the top end of the filter bag 402, thereby achieving the second connecting tube 604 quickly deviating from the top end of the filter bag 402, which is convenient for replacing the filter bag 402.

[0036] When the present invention is in use, the dust conveying duct can be connected to the air inlet duct 8, and the air inlet duct of the negative pressure fan can be connected to the air outlet duct 9. Therefore, under the action of the negative pressure fan, the dust will enter the interior of the dust removal box 1 along with the gas. When the air passes through the filter bag 402, the dust will be filtered by the filter bag 402, and the filtered air will be discharged from the outlet 9, thereby achieving dust removal. By providing a support frame 403, the filter bag 402 can be supported, so as to avoid the filter bag 402 from deforming under a large negative pressure, thereby effectively improving the stability of use. When the filter bag 402 needs to be replaced, the screw 303 can be rotated by the rotating rod 303. 04, the screw rod 304 will drive the pressing block 305 to move away from the cover plate 201. When the pressing block 305 is separated from the groove 204, the movable plate 302 can be pushed to slide on the two groove plates 301. When the movable plate 302 deviates to the top of the cover plate 201, the cover plate 201 can be moved by holding the handle 202, so as to realize the rapid disassembly of the cover plate 201. By quickly disassembling the cover plate 201, the time for replacing the filter bag 402 can be shortened, thereby improving the efficiency of replacing the filter bag 402. After the cover plate 201 is disassembled, the reset spring 703 is extended by pulling the insertion rod 702. When one end of the insertion rod 702 is not engaged with one of the slots 705, the second When the second connecting tube 604 is rotated 90 degrees, the insertion rod 702 will be engaged with another slot 705 again under the action of the return spring 703. At this time, the second connecting tube 604 deviates from the top of the filter bag 402, so that the second connecting tube 604 can be quickly deviated from the top of the filter bag 402. When the filter bag 402 needs to be taken out, it can be done by turning one of the knobs 506. When the knob 506 and the connecting piece 502 are not tightly pressed, the rotation of the knob 506 will drive the block 504 to rotate together until the block 504 and the connecting sleeve 505 are in conflict, and then the above operation is repeated to make the other block 504 and the other connecting sleeve 505 close. The pressing ring 501 can be quickly disassembled after the connecting shaft 503 and the connecting sleeve 505 are separated, thereby avoiding the need to twist the knob 506 off the connecting shaft 503 and reducing the number of turns of the knob 506. After the pressing ring 501 is disassembled, it can be connected with other small fixed parts, thereby avoiding the situation that small parts fall into the dust removal box 1, making it more convenient to use. When the pressing ring 501 is removed, the support frame 403 can be taken out from the inside of the filter bag 402, and finally the filter bag 402 can be taken out from the support plate 401, thereby realizing the disassembly of the filter bag 402 and facilitating the replacement of the filter bag 402.

[0037] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0038] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A dust removal system for a grinding workshop, characterized in that: The dust removal box (1) comprises a sealing structure (2) on the dust removal box (1), a fixing structure (3) on the dust removal box (1), a filtering structure (4) inside the dust removal box (1), a mounting structure (5) on the filtering structure (4), a back-blowing structure (6) on the dust removal box (1), a limiting structure (7) on the back-blowing structure (6), an air inlet pipe (8) fixedly connected to the bottom end of one side of the dust removal box (1), an air outlet pipe (9) fixedly connected to the top end of the other side of the dust removal box (1), an ash hopper (10) fixedly mounted on the bottom end of the dust removal box (1), a discharge valve (11) mounted on the bottom end of the ash hopper (10), and four supporting legs (12) fixedly connected to the ash hopper (10); The fixed structure (3) comprises a slot plate (301), two slot plates (301) are fixedly connected to the top ends of both sides of the dust removal box (1), two movable plates (302) are slidably connected between the two slot plates (301), a screw rod (304) is threadedly connected to the movable plate (302), a pressing block (305) is rotatably connected to the bottom end of the screw rod (304), and the pressing block (305) is in contact with the sealing structure (2).

2. A dust removal system for a grinding workshop according to claim 1, characterized in that: The cross section of the end of the movable plate (302) is L-shaped. The screw rod (304) is arranged in the middle of the movable plate (302). One end of the screw rod (304) is fixedly connected to a rotating rod (303). The rotating rod (303) passes through the screw rod (304) and is perpendicular to the screw rod (304).

3. The dust removal system for a grinding workshop according to claim 1, characterized in that: The sealing structure (2) comprises a cover plate (201) and a handle (202); the top end of the dust removal box (1) is clamped with two cover plates (201); the cover plate (201) is fixedly connected with the handle (202); the cover plate (201) is provided with a groove (204); the groove (204) is clamped with a pressing block (305).

4. A dust removal system for a grinding workshop according to claim 3, characterized in that: A sealing gasket (203) is clamped on the cover plate (201), and the sealing gasket (203) is in contact with the top end of the dust removal box (1).

5. The dust removal system for a grinding workshop according to claim 1, characterized in that: The filtering structure (4) comprises a support plate (401) and a filter bag (402); the support plate (401) is fixedly connected to the interior of the dust removal box (1); a plurality of filter bags (402) are sleeved on the support plate (401); a support frame (403) is provided on the inner side of the filter bag (402); the inner side of the top end of the support frame (403) is in contact with the filter bag (402).

6. A dust removal system for a grinding workshop according to claim 5, characterized in that: The mounting structure (5) comprises a pressure ring (501) and a connecting piece (502); the top end of the support frame (403) is in contact with the pressure ring (501); two connecting pieces (502) are fixedly connected to the pressure ring (501); a connecting shaft (503) is passed through the connecting piece (502); a clamping block (504) is fixedly connected to the connecting shaft (503); a connecting sleeve (505) is provided at the bottom end of the connecting shaft (503); the connecting sleeve (505) is fixedly connected to the support plate (401); the connecting shaft (503) is slidably connected to the connecting sleeve (505); the clamping block (504) and the connecting sleeve (505) are engaged with each other; a knob (506) is threadedly connected to the connecting shaft (503); and the knob (506) is in contact with the pressure ring (501).

7. A dust removal system for a grinding workshop according to claim 6, characterized in that: The two connecting pieces (502) are symmetrically distributed about the middle of the pressure ring (501), and the cross section between the connecting shaft (503) and the clamping block (504) is an L-shaped structure.

8. The dust removal system for a grinding workshop according to claim 5, characterized in that: The back-blowing structure (6) comprises a high-pressure gas cylinder (601) and a pulse valve (602). The dust removal box (1) is provided with a high-pressure gas cylinder (601). A plurality of pulse valves (602) are provided on the high-pressure gas cylinder (601). A first connecting pipe (603) is fixedly connected to the pulse valve (602). The first connecting pipe (603) is fixedly connected to the dust removal box (1). The end of the first connecting pipe (603) is rotatably connected to a second connecting pipe (604). A plurality of nozzles (605) are provided on the second connecting pipe (604). The nozzles (605) are located directly above adjacent filter bags (402). The cross section of one end of the second connecting pipe (604) is an L-shaped structure.

9. A dust removal system for a grinding workshop according to claim 8, characterized in that: The limiting structure (7) comprises a connecting plate (701) and an insertion rod (702); the connecting plate (701) is fixedly connected to the second connecting tube (604); the insertion rod (702) is slidably connected to the connecting plate (701); a return spring (703) is sleeved on the outside of the insertion rod (702); one end of the return spring (703) is fixedly connected to the connecting plate (701); the other end of the return spring (703) is fixedly connected to the insertion rod (702); the first connecting tube (603) is fixedly connected to a connecting ring (704); four slots (705) are provided on the connecting ring (704); one end of the insertion rod (702) is engaged with one of the slots (705).

10. A dust removal system for a grinding workshop according to claim 9, characterized in that: The four slots (705) are distributed in a circular array about the center of the connecting ring (704); the cross section of one end of the insertion rod (702) is a T-shaped structure, and the cross section of the other end of the insertion rod (702) is a trapezoidal structure.

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