Sintering furnace tail gas treatment device for manufacturing base material from solid waste
By designing the bag cleaning component and the back-blowing component, the problem of incomplete cleaning of the external dust of the dust collector bags in the sintering furnace tail gas treatment device was solved, achieving a highly efficient dust removal effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-29
- Publication Date
- 2026-03-27
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
In existing technologies, the dust on the outside of the dust collector bags in sintering furnace exhaust gas treatment devices is not thoroughly cleaned, and the cleaning method is limited, resulting in low dust removal efficiency.
The bag cleaning assembly, including a rotating bearing, an outer fixed frame, and an inner fixed frame, cleans the dust on the outside of the dust collector bag by relative rotation. Combined with a back-blowing component and a knocking bar structure, it achieves effective dust removal.
It improves the cleaning efficiency of the dust collector bags, ensures that dust is completely removed, avoids dust accumulation, and enhances the dust removal effect.
Smart Images
Figure CN121731880A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of sintering furnace exhaust gas treatment technology, specifically to a sintering furnace exhaust gas treatment device for making substrates from solid waste. Background Technology
[0002] When using solid waste such as construction waste and industrial slag as raw materials to make environmentally friendly substrates, the sintering furnace is the core equipment. The exhaust gas emitted is complex, containing not only gases such as sulfides and nitrides, but also a large amount of highly viscous dust. This dust originates from clay, organic matter, and unburned carbon particles in the solid waste, which is the primary challenge in exhaust gas treatment. Due to its high dust removal efficiency, the bag filter has become the core equipment for the pretreatment of this type of exhaust gas.
[0003] In the existing technology, there are certain drawbacks to using bag filters for sintering furnace exhaust gas treatment. When solid waste is used to make substrates, the exhaust gas from the sintering furnace contains a lot of dust and smoke. The dust and smoke will adhere to and remain on the outside of the filter bags. The filtered air is discharged from the inside of the filter bags to the outside. Cleaning the dust remaining on the outside of the filter bags is quite troublesome. Simply using vibration to make the filter bags shake is a relatively simple way of cleaning the filter bags, which makes it difficult to thoroughly clean the dust on the outside of the filter bags. Summary of the Invention
[0004] The purpose of this invention is to provide a sintering furnace exhaust gas treatment device for solid waste to produce substrates, so as to solve the problem mentioned in the background art that dust and smoke will adhere to and remain on the outside of the dust collector bag. The filtered air is discharged from the inside of the dust collector bag to the outside. The dust remaining on the outside of the dust collector bag is difficult to clean. The method of cleaning the dust collector bag is relatively simple, which makes the dust on the outside of the dust collector bag incomplete.
[0005] The objective of this invention can be achieved through the following technical solutions: A sintering furnace exhaust gas treatment device for solid waste-based substrate production includes an exhaust gas dust collector and a dust collection box disposed at the upper end of the exhaust gas dust collector. The side wall of the dust collection box has an air inlet and an air outlet. The air inlet communicates with the interior of the dust collection box. The interior of the dust collection box contains several sets of dust collection bags and connectors. The connectors are connected to the air outlets via connecting pipes. Below each connector and at each dust collection bag, a bag cleaning assembly is disposed. The bag cleaning assembly includes a first fixing plate, which is installed on the inner wall of the dust collection box. The surface of the first fixing plate... A rotating bearing is provided at the bottom of each connector, and the connector is connected to a spur gear through the rotating bearing. A rack is provided on the outside of the spur gear and on the surface of the first fixed plate. The end of the rack is located outside the dust collector box. An inner fixed frame is welded to the bottom of the inner ring of the rotating bearing, and an outer fixed frame is welded to the bottom of the outer ring of the rotating bearing. The outer fixed frame and the inner fixed frame rotate relative to each other. The dust collector bag is placed between the outer fixed frame and the inner fixed frame, and the top of the dust collector bag is connected to the inner ring of the rotating bearing. The relatively rotating outer fixed frame and the inner fixed frame are used to clean the dust collector bag.
[0006] As a preferred embodiment of the present invention, the inner ring of the rotating bearing is welded with an inner fixing ring, which is welded to the connector. The outer ring of the rotating bearing is welded with an outer fixing ring, which is rotatably connected to the inside of the first fixing plate. The bottom end of the outer fixing ring is welded to the outer fixing frame, and the bottom end of the inner fixing ring is welded to the inner fixing frame.
[0007] As a preferred technical solution of the present invention, the connectors are arranged in a rectangular array, the rotating bearings are arranged in a rectangular array, the inner diameter of the outer fixing frame is in contact with the outside of the dust collector bag, and the rotating outer fixing frame is in contact with the dust collector bag to remove dust adhering to the outside of the dust collector bag. The inner fixing ring has a reserved hole inside, which is used to connect the dust collector bag and the connector.
[0008] As a preferred embodiment of the present invention, the inner side of the outer fixing frame is welded with several layers of first striking strips, and the inner side of the inner fixing frame is welded with several layers of second striking strips. The number of layers of the first striking strips and the number of layers of the second striking strips are both not less than two, and the shapes of the first striking strips and the second striking strips are both arc-shaped.
[0009] As a preferred embodiment of the present invention, the first striking strip and the second striking strip at the same height are aligned, the middle of the first striking strip and the middle of the second striking strip are in intermittent contact, and the first striking strip and the second striking strip are located on the outside of the dust collector bag and the inside of the dust collector bag, respectively.
[0010] As a preferred embodiment of the present invention, the racks are arranged in parallel to each other, and a connecting rod is welded to the same end of each rack and located outside the dust collector. Each rack meshes with a spur gear corresponding to each rack, and the moving rack is used to drive the spur gear of the rotating bearing to rotate relative to the inner fixed ring.
[0011] As a preferred embodiment of the present invention, the bottom ends of the outer fixed frame and the inner fixed frame are provided with a back-blowing component. The back-blowing component includes a fixing block, which is located at the bottom end of the outer fixed frame. A vent pipe is inserted in the middle of the fixing block, and an expansion airbag is sleeved on the top end of the vent pipe. A second fixing plate is attached to the top end of the expansion airbag. The edge of the second fixing plate is slidably connected to the inner fixed frame. A telescopic spring is sleeved on the bottom end of the inner fixed frame, and the top end of the telescopic spring is connected to the second fixing plate. When dust accumulates on the outer wall of the dust collector bag, it will obstruct the airflow from being discharged from the side wall of the dust collector bag. The increased airflow through the vent pipe causes the expansion airbag to suddenly expand and push the airflow inside the dust collector bag.
[0012] As a preferred embodiment of the present invention, a third fixing plate is welded to the outside of the inner fixing frame, the distance the second fixing plate moves is less than the extension length of the telescopic spring, and the second fixing plate and the third fixing plate are arranged in parallel relative to each other.
[0013] As a preferred embodiment of the present invention, a mating ring is welded to the outside of the inner fixing frame and at the intersection of the inner fixing frame and the second fixing plate. A ring of mating holes is opened on the edge of the second fixing plate, and the diameter of the mating holes is transitionally matched with the diameter of the mating ring. A telescopic spring is used to push the mating holes of the second fixing plate past the mating ring.
[0014] As a preferred embodiment of the present invention, a connecting sleeve is connected to the middle of the bottom end of the dust collector bag. The connecting sleeve is rotatably connected to the vent pipe. A filter plate for filtering dust is provided at the bottom end of the vent pipe. The filter plate is in the shape of an inverted V. The vent pipe is connected to the interior of the expansion air bladder.
[0015] Compared with the prior art, the beneficial effects of the present invention are: It is equipped with a bag cleaning component. By rotating the inner and outer fixed rings of the rotating bearing relative to each other, the outer fixed frame and the inner fixed frame can be rotated relative to each other. The dust adhering to the dust collector bag is cleaned by the relative rotation of the outer and inner fixed frames. The first and second striking strips are adapted to each other. The outer and inner fixed frames rotate relative to each other, causing the first and second striking strips to strike each other. The outer and inner fixed frames vibrate, which can clean the dust on the dust collector bag again. Equipped with a reverse-blowing component, when the air pressure inside the dust collector is high or the outer wall of the dust collector bag is blocked, the airflow will enter the expansion air bladder through the vent pipe. The expanded air bladder can push the second fixed plate to push the airflow inside the dust collector bag, which can blow the gas attached to the outside of the dust collector bag in the opposite direction, making it easier to clean the dust on the outside of the dust collector bag. The telescopic spring, mating ring, and mating hole work together. Under the action of the telescopic spring, the mating hole of the second fixed plate is disengaged from the mating ring, which can suddenly push the air pressure between the second fixed plate and the third fixed plate, and can better clean the dust on the surface of the back-blowing component. Attached Figure Description
[0016] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.
[0017] Figure 1 This is a main structural diagram of a sintering furnace exhaust gas treatment device for making solid waste substrates according to the present invention. Figure 2 A schematic diagram of a dust collector bag for a sintering furnace exhaust gas treatment device for solid waste substrate production according to the present invention. Figure 3 This is a schematic diagram of the bag cleaning component of a sintering furnace exhaust gas treatment device for solid waste substrate production according to the present invention. Figure 4 This is a schematic diagram of the outer and inner fixing frames of a sintering furnace exhaust gas treatment device for making solid waste substrates according to the present invention. Figure 5 This is a schematic diagram of the rotating bearing of a sintering furnace tail gas treatment device for solid waste substrate production according to the present invention. Figure 6 This is a schematic diagram of the first and second striking bars of a sintering furnace tail gas treatment device for making solid waste substrates according to the present invention. Figure 7 This is a schematic diagram of the back-blowing component of a sintering furnace tail gas treatment device for solid waste substrate production according to the present invention. Figure 8 This is a schematic diagram of the mating ring and mating hole of a sintering furnace tail gas treatment device for making solid waste substrate according to the present invention.
[0018] In the diagram: 1. Exhaust gas dust collector; 2. Dust collector housing; 3. Air inlet; 4. Air outlet; 5. Bag cleaning assembly; 6. Back-blowing assembly; 7. Dust collector bag; 8. Connector; 51. First fixing plate; 52. Rack; 53. Spur gear; 54. Outer fixing frame; 55. Rotary bearing; 56. Inner fixing frame; 57. Reserved hole; 58. Inner fixing ring; 59. Outer fixing ring; 510. First striking bar; 511. Second striking bar; 61. Fixing block; 62. Ventilation pipe; 63. Connecting sleeve; 64. Inflatable air bladder; 65. Second fixing plate; 66. Third fixing plate; 67. Mating ring; 68. Telescopic spring; 69. Mating hole. Detailed Implementation
[0019] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example 1:
[0020] Please see Figure 1 - Figure 6As shown, a sintering furnace exhaust gas treatment device for solid waste-based substrates includes an exhaust gas dust collector 1 and a dust collection box 2 located at the upper end of the exhaust gas dust collector 1. The side wall of the dust collection box 2 has an air inlet 3 and an air outlet 4. The air inlet 3 is connected to the interior of the dust collection box 2. The interior of the dust collection box 2 contains several sets of dust collection bags 7 and connectors 8. The connectors 8 are connected to the air outlet 4 via connecting pipes. A fan at the air inlet 3, driven by a motor, draws dust or soot into the dust collection box 2. The dust and soot are trapped or adhered to by the dust collection bags 7, thus placing the dust or soot outside the dust collection bags 7. Clean air flows into the interior of the dust collection bags 7 and passes through the connectors 8 and the air outlet 4. Clean airflow is discharged from outlet 4. A bag cleaning assembly 5 is installed below each connector 8 and at each dust collector bag 7. The bag cleaning assembly 5 includes a first fixing plate 51, which is installed on the inner wall of the dust collector housing 2 to provide support for the bag cleaning assembly 5 and the dust collector bags 7. A rotating bearing 55 is installed on the surface of the first fixing plate 51 and at the bottom of each connector 8. The rotating bearing 55 includes an inner ring or an outer ring. The connector 8 is connected to a spur gear 53 through the rotating bearing 55. The first fixing plate 51, the connector 8, and the inner ring of the rotating bearing 55 maintain a certain position. A rack is installed on the outside of the spur gear 53 and on the surface of the first fixing plate 51. 52. The end of rack 52 is located outside the dust collector housing 2. The movement of rack 52 can cause the corresponding spur gears 53 to mesh. An inner fixed frame 56 is welded to the bottom of the inner ring of the rotating bearing 55, and an outer fixed frame 54 is welded to the bottom of the outer ring of the rotating bearing 55. The outer fixed frame 54 and the inner fixed frame 56 rotate relative to each other. The outer fixed frame 54 and the outer ring of the rotating bearing 55 rotate synchronously. The inner fixed frame 56 and the inner ring of the rotating bearing 55 maintain a certain position. The dust collector bag 7 is placed between the outer fixed frame 54 and the inner fixed frame 56, and the top of the dust collector bag 7 is connected to the inner ring of the rotating bearing 55. The relatively rotating outer fixed frame 54 and the inner fixed frame 56 are used to control the dust collector bag 7. The cleaning process involves the rack 52 driving the spur gear 53 on the outer ring of the rotating bearing 55 to rotate, which in turn drives the outer fixed ring 59 and the outer fixed frame 54 to rotate. Since the first fixed plate 51, the inner fixed ring 58, the connector 8, the inner ring of the rotating bearing 55, and the inner fixed frame 56 maintain a certain position relative to each other, and there is a certain gap between the outer side of the rotating bearing 55 and the first fixed plate 51, the rack 52 drives the spur gear 53 to rotate the outer ring of the rotating bearing 55, the outer fixed ring 59, and the outer fixed frame 54. As a result, the outer fixed frame 54 and the inner fixed frame 56 rotate relative to each other, and the dust in the dust collector bag 7 between the relatively rotating outer fixed frame 54 and the inner fixed frame 56 is cleaned.
[0021] Please see Figure 3 and Figure 4As shown, the inner ring of the rotating bearing 55 is welded with an inner fixing ring 58, which is welded to the connector 8. The outer ring of the rotating bearing 55 is welded with an outer fixing ring 59, which is rotatably connected to the inside of the first fixing plate 51. The bottom end of the outer fixing ring 59 is welded to the outer fixing frame 54, and the bottom end of the inner fixing ring 58 is welded to the inner fixing frame 56. The rotating bearing 55, the bag cleaning assembly 5, and the inner fixing frame 56 are suspended by the connector 8, and the inner ring, inner fixing ring 58, and connector 8 of the rotating bearing 55 are kept in a fixed position. The first fixing plate 51 supports the spur gear 53. There is a gap between the outer ring of the rotating bearing 55 and the inside of the first fixing plate 51, so that the outer ring and the inner ring of the rotating bearing 55 rotate relative to each other, and the outer fixing frame 54 and the inner fixing frame 56 rotate relative to each other. The relatively rotating outer fixing frame 54 can clean the dust collection bag 7.
[0022] Please see Figure 4 and Figure 5 As shown, the connectors 8 are arranged in a rectangular array, and the rotating bearings 55 are arranged in a rectangular array. The inner diameter of the outer fixing frame 54 is in contact with the outside of the dust collector bag 7. The rotating outer fixing frame 54 is in contact with the dust collector bag 7 to remove dust adhering to the outside of the dust collector bag 7. The inner fixing ring 58 has a reserved hole 57 inside. The reserved hole 57 is used to connect the dust collector bag 7 and the connector 8. The connector 8 and the inner ring of the rotating bearing 55 are fixed together. The airflow isolated by the dust collector bag 7 allows the airflow to pass through the reserved hole 57 of the inner fixing ring 58. The reserved hole 57 does not affect the airflow.
[0023] Please see Figure 4 and Figure 6As shown, several layers of first striking strips 510 are welded inside the outer fixing frame 54, and several layers of second striking strips 511 are welded inside the inner fixing frame 56. The number of layers of first striking strips 510 and second striking strips 511 is no less than two. Both the first striking strips 510 and second striking strips 511 are arc-shaped. The first striking strips 510 and second striking strips 511 are welded to the outer fixing frame 54 and inner fixing frame 56 respectively. First striking strips 510 and second striking strips 511 at the same height are aligned, and the middle of the first striking strip 510 and the middle of the second striking strip 511 are intermittently connected. The first striking strip 510 and the second striking strip 511 are located on the outside and inside of the dust collector bag 7, respectively. Since the first striking strip 510 and the second striking strip 511 are arranged in several layers, the middle of the first striking strip 510 and the middle of the second striking strip 511 in each layer are in intermittent contact. As a result, the outer fixed frame 54 and the inner fixed frame 56 rotate relative to each other, so that the first striking strip 510 and the second striking strip 511 intermittently strike each other, causing both the outer fixed frame 54 and the inner fixed frame 56 to vibrate. The dust on the dust collector bag 7 can be shaken off, which is beneficial for removing the dust from the surface of the dust collector bag 7.
[0024] Please see Figure 2 As shown, the racks 52 are arranged in parallel to each other. A connecting rod is welded to the same end of each rack 52 and located outside the dust collector 2. Each rack 52 meshes with the corresponding spur gear 53. The moving rack 52 is used to drive the spur gear 53 of the rotating bearing 55 to rotate relative to the inner fixed ring 58. The movement of the rack 52 can rotate with the spur gear 53. The spur gear 53 is located on the outer ring of the rotating bearing 55, so the spur gear 53 rotates relative to the inner ring of the rotating bearing 55. The outer fixed frame 54 can rotate relative to the inner fixed frame 56.
[0025] It should be noted that when the bag cleaning assembly 5 is installed at the dust collector bag 7 and the connector 8, the connector 8, the inner fixing ring 58, the inner ring of the rotating bearing 55, the inner fixing frame 56, and the dust collector bag 7 remain stationary. During operation, airflow enters the interior of the dust collector housing 2 through the air inlet 3, causing dust to remain on the outside of the dust collector bag 7. Clean air from the inside of the dust collector bag 7 is discharged through the connector 8 and the air outlet 4. When it is necessary to clean the dust on the outside of the dust collector bag 7, the rack 52 can be rotated along the spur gear 53, thereby driving the outer fixing ring 58. 9 and the outer fixed frame 54 rotate relative to the inner fixed frame 56, so that the dust collector bag 7 between the outer fixed frame 54 and the inner fixed frame 56 is cleaned. Due to the relative rotation of the outer fixed frame 54 and the inner fixed frame 56, the first tapping strip 510 of the outer fixed frame 54 and the second tapping strip 511 of the inner fixed frame 56 come into intermittent contact. The contact between the outer fixed frame 54 and the inner fixed frame 56 makes the outer fixed frame 54 and the inner fixed frame 56 vibrate, and the dust collector bag 7 located between the outer fixed frame 54 and the inner fixed frame 56 can clean the dust on the surface of the dust collector bag 7.
[0026] Please see Figure 2 , Figure 7 and Figure 8 As shown, a back-blowing assembly 6 is provided at the bottom of the outer fixing frame 54 and the inner fixing frame 56. The back-blowing assembly 6 includes a fixing block 61, which is located at the bottom of the outer fixing frame 54. A vent pipe 62 is inserted in the middle of the fixing block 61, and an inflatable airbag 64 is fitted at the top of the vent pipe 62. A second fixing plate 65 is attached to the top of the inflatable airbag 64. The edge of the second fixing plate 65 is slidably connected to the inner fixing frame 56. The vent pipe 62 is inserted inside the fixing block 61, so that the end of the vent pipe 62 is connected to the inside of the inflatable airbag 64, causing the inflatable airbag 64 to expand or contract. The bottom of the inner fixing frame 56 is fitted with a... There is a telescopic spring 68, the top of which is connected to the second fixed plate 65. When dust accumulates on the outer wall of the dust collector bag 7, it will obstruct the airflow from the side wall of the dust collector bag 7. The increased airflow through the vent pipe 62 causes the second expansion airbag 64 to suddenly expand and push the airflow inside the dust collector bag 7. When the airflow entering the dust collector box 2 causes the vent pipe 62 to enter the expansion airbag 64, the expansion airbag 64 expands and the second fixed plate 65 slides along the inner fixed frame 56. The airflow inside the dust collector bag 7 can blow away the dust on the outer wall of the dust collector bag 7, thereby blowing away the dust on the outside of the dust collector bag 7 in the opposite direction.
[0027] Please see Figure 7 and Figure 8As shown, a third fixing plate 66 is welded to the outside of the inner fixing frame 56. The distance that the second fixing plate 65 moves is less than the extension length of the telescopic spring 68. The second fixing plate 65 and the third fixing plate 66 are arranged in parallel relative to each other. Because the second fixing plate 65 and the third fixing plate 66 are arranged relative to each other, the second fixing plate 65 will suddenly rise and come into contact with the second fixing plate 65 and the third fixing plate 66, which can push the gas inside the dust collector bag 7. The dust collector bag 7 is covered with a thick layer of dust, so that the dust in the dust collector bag 7 is cleaned.
[0028] Please see Figure 7 and Figure 8 As shown, a mating ring 67 is welded to the outside of the inner fixing frame 56 and at the intersection of the inner fixing frame 56 and the second fixing plate 65. A ring of mating holes 69 is opened on the edge of the second fixing plate 65. The diameter of the mating hole 69 is transitionally matched with the diameter of the mating ring 67. The telescopic spring 68 is used to push the mating hole 69 of the second fixing plate 65 past the mating ring 67. The engagement of the mating ring 67 and the mating hole 69 can prevent the second fixing plate 65 and the third fixing plate 66 from sticking together. When a thick layer of dust accumulates on the outside of the dust collector bag 7, the airflow can only enter the interior of the expansion air bladder 64 through the vent pipe 62. When the expansion air bladder 64 expands to a certain size, the expansion force will cause the mating ring 67 and the mating hole 69 to separate, thereby causing the second fixing plate 65 and the third fixing plate 66 to stick together. This can push the airflow inside the dust collector bag 7, thereby cleaning the dust on the outside of the dust collector bag 7.
[0029] Please see Figure 7 and Figure 8 As shown, a connecting sleeve 63 is connected to the middle of the bottom end of the dust collector bag 7. The connecting sleeve 63 is rotatably connected to the vent pipe 62. A filter plate for filtering dust is provided at the bottom end of the vent pipe 62. The filter plate is shaped like an inverted V. The vent pipe 62 is connected to the inside of the expansion air bladder 64. The airflow enters the inside of the expansion air bladder 64 from the vent pipe 62 and is filtered by the filter plate.
[0030] It should be noted that when a thick layer of dust still accumulates on the outside of the dust collector bag 7, the airflow can only enter the expansion bladder 64 from the vent pipe 62 at the bottom of the dust collector bag 7. This expands the expansion bladder 64, causing it to push the second fixing plate 65. When the thrust of the expansion bladder 64 is greater than the engagement force between the mating hole 69 and the mating ring 67, the second fixing plate 65 moves. The second fixing plate 65 slides along the third fixing plate 66. After the second fixing plate 65 and the third fixing plate 66 are in contact, the airflow inside the dust collector bag 7 is pushed. The airflow inside the dust collector bag 7 can blow away the dust on the outside of the dust collector bag 7, thus causing the dust on the surface of the dust collector bag 7 to be blown away in the opposite direction. The filter plate at the end of the vent pipe 62 can prevent dust in the airflow from entering the interior of the vent pipe 62, and the inverted V-shape of the vent pipe 62 prevents dust from being trapped on the filter plate.
[0031] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims
1. A sintering furnace tail gas treatment device for solid waste substrate production, comprising a tail gas dust collector (1) and a dust collection box (2) disposed at the upper end of the tail gas dust collector (1), wherein the side wall of the dust collection box (2) is provided with an air inlet (3) and an air outlet (4), the air inlet (3) is connected to the interior of the dust collection box (2), and the interior of the dust collection box (2) is provided with a plurality of sets of dust collection bags (7) and connectors (8), the connectors (8) being connected to the air outlet (4) through connecting pipes, characterized in that, Below each connector (8) and at each dust collector bag (7), a bag cleaning assembly (5) is provided. The bag cleaning assembly (5) includes a first fixing plate (51), which is installed on the inner wall of the dust collector box (2). A rotating bearing (55) is provided on the surface of the first fixing plate (51) and at the bottom of each connector (8). The connector (8) is connected to a spur gear (53) through the rotating bearing (55). A rack (52) is provided on the outside of the spur gear (53) and on the surface of the first fixing plate (51). The end of the rack (52) is located outside the dust collector box (2). The bottom of the inner ring of the rotating bearing (55) is welded with an inner fixed frame (56), and the bottom of the outer ring of the rotating bearing (55) is welded with an outer fixed frame (54). The outer fixed frame (54) and the inner fixed frame (56) rotate relative to each other. The dust collector bag (7) is set between the outer fixed frame (54) and the inner fixed frame (56), and the top of the dust collector bag (7) is connected to the inner ring of the rotating bearing (55). The relatively rotating outer fixed frame (54) and the inner fixed frame (56) are used to clean the dust collector bag (7).
2. The sintering furnace tail gas treatment device for solid waste-based substrate production according to claim 1, characterized in that, The inner ring of the rotating bearing (55) is welded with an inner fixing ring (58), which is welded to the connector (8). The outer ring of the rotating bearing (55) is welded with an outer fixing ring (59), which is rotatably connected to the inside of the first fixing plate (51). The bottom end of the outer fixing ring (59) is welded to the outer fixing frame (54), and the bottom end of the inner fixing ring (58) is welded to the inner fixing frame (56).
3. The sintering furnace tail gas treatment device for solid waste-based substrates according to claim 2, characterized in that, The connectors (8) are arranged in a rectangular array, and the rotating bearings (55) are arranged in a rectangular array. The inner diameter of the outer fixing frame (54) is in contact with the outside of the dust collector bag (7). The rotating outer fixing frame (54) contacts the dust collector bag (7) to remove dust adhering to the outside of the dust collector bag (7). The inner fixing ring (58) has a reserved hole (57) inside, which is used to connect the dust collector bag (7) and the connector (8).
4. The sintering furnace tail gas treatment device for solid waste substrate production according to claim 3, characterized in that, The outer fixing frame (54) has several layers of first striking strips (510) welded inside, and the inner fixing frame (56) has several layers of second striking strips (511) welded inside. The number of layers of the first striking strips (510) and the number of layers of the second striking strips (511) are both not less than two. The shapes of the first striking strips (510) and the second striking strips (511) are both arc-shaped.
5. The sintering furnace tail gas treatment device for solid waste substrate production according to claim 4, characterized in that, The first striking strip (510) and the second striking strip (511) at the same height are aligned with each other. The middle of the first striking strip (510) and the middle of the second striking strip (511) are in intermittent contact. The first striking strip (510) and the second striking strip (511) are located on the outside of the dust collector bag (7) and inside the dust collector bag (7), respectively.
6. The sintering furnace tail gas treatment device for solid waste-based substrates according to claim 5, characterized in that, The racks (52) are arranged in parallel to each other. A connecting rod is welded to the same end of each rack (52) and outside the dust collector (2). Each rack (52) meshes with the corresponding spur gear (53). The moving rack (52) is used to drive the spur gear (53) of the rotating bearing (55) to rotate relative to the inner fixed ring (58).
7. A sintering furnace tail gas treatment device for solid waste-based substrates according to claim 1 or 5, characterized in that, The bottom ends of the outer fixed frame (54) and the inner fixed frame (56) are provided with a back-blowing component (6). The back-blowing component (6) includes a fixed block (61). The fixed block (61) is located at the bottom end of the outer fixed frame (54). A vent pipe (62) is inserted in the middle of the fixed block (61). An expansion air bag (64) is sleeved on the top end of the vent pipe (62). A second fixed plate (65) is pasted on the top end of the expansion air bag (64). The edge of the second fixed plate (65) is slidably connected to the inner fixed frame (56). A telescopic spring (68) is sleeved on the bottom end of the inner fixed frame (56). The top end of the telescopic spring (68) is connected to the second fixed plate (65). When dust accumulates on the outer wall of the dust collector bag (7), it will hinder the airflow from being discharged from the side wall of the dust collector bag (7). The increased airflow from the vent pipe (62) causes the expansion air bag (64) to suddenly expand and push the airflow inside the dust collector bag (7).
8. The sintering furnace tail gas treatment device for solid waste-based substrates according to claim 7, characterized in that, The inner fixed frame (56) is welded to the outside of a third fixed plate (66). The distance that the second fixed plate (65) moves is less than the extension length of the telescopic spring (68). The second fixed plate (65) and the third fixed plate (66) are arranged in parallel relative to each other.
9. The sintering furnace tail gas treatment device for solid waste-based substrates according to claim 8, characterized in that, A mating ring (67) is welded to the outside of the inner fixing frame (56) and at the intersection of the inner fixing frame (56) and the second fixing plate (65). A ring of mating holes (69) is opened on the edge of the second fixing plate (65). The diameter of the mating hole (69) is transitionally matched with the diameter of the mating ring (67). The telescopic spring (68) is used to push the mating hole (69) of the second fixing plate (65) over the mating ring (67).
10. A sintering furnace tail gas treatment device for solid waste-based substrates according to claim 9, characterized in that, The bottom of the dust collector bag (7) is connected to a connecting sleeve (63), which is rotatably connected to the vent pipe (62). The bottom of the vent pipe (62) is provided with a filter plate for filtering dust. The filter plate is in the shape of an inverted V. The vent pipe (62) is connected to the inside of the expansion air bladder (64).