Environment-friendly waste gas dust removal equipment

Abstract

The present application relates to waste gas dust removal technical field, specifically disclose a kind of environmental protection waste gas dust removal equipment, including dust removal cabinet and fan, dust removal cabinet is equipped with multiple filter groups, filter unit is by filter cartridge holder, cylindrical filter cloth bag and vertical cylinder partition, vertical cylinder partition divides the inner cavity of cloth bag into first filter cavity and second filter cavity.Box partition and area partition divide the space between adjacent filter units into longitudinal strip space.Dust removal cabinet top and bottom are respectively slidably installed upper seal plate and lower seal plate, upper and lower seal plate are provided with staggered arrangement notch, by the synchronous sliding of bow arm and electric telescopic rod, make longitudinal strip space alternate switching between filter state and dust removal state.Lower seal plate notch two sides are provided with strip airway, group connection dust removal pipe and solenoid valve, and connected with fan air inlet.The equipment of the present application is maintained by single fan operation, that is, on-line dust removal can be realized without stopping machine, and the structure is simple and reliable.

Description

Technical Field

[0001] This invention relates to the field of waste gas dust removal technology, specifically to an environmentally friendly waste gas dust removal device. Background Technology

[0002] Write a background description for the device, highlighting the shortcomings of the prior art that the device addresses. Summary of the Invention

[0003] The purpose of this invention is to provide an environmentally friendly waste gas dust removal device to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: An environmentally friendly waste gas dust removal device includes a dust collection box and a fan: the dust collection box is provided with at least two rows of longitudinally arranged filter groups, each row of filter groups includes at least one vertically arranged filter unit; the filter unit includes a filter cartridge frame and a cylindrical filter bag sleeved on the filter cartridge frame, the filter cartridge frame is provided with a vertical cylindrical partition, the vertical cylindrical partition divides the inner cavity of the cylindrical filter bag into a first filter cavity and a second filter cavity that are independent of each other; The dust collector chamber is also equipped with vertical internal partitions and area partitions. The internal partitions are used to enclose and isolate adjacent filter groups within the dust collector chamber. The area partitions are coplanar with the vertical cylindrical partitions and are used to divide the space between adjacent filter units in each enclosed space into two independent longitudinal strip spaces. The two longitudinal strip spaces are respectively vertically connected to the first filter chamber and the second filter chamber of the filter unit. The longitudinal strip space constitutes the dust-laden side, and the inner cavity of the dust collector box outside the filter bag constitutes the clean air side. A one-way valve is installed on the side wall steel plate of the dust collector corresponding to the clean air side; the one-way valve is configured to allow one-way flow from the outside of the dust collector to the clean air side, and to close when filtering on the clean air side and open to replenish air to the clean air side when cleaning dust. The top plate of the dust collector housing has an upper flow hole corresponding to the clean air side, and the bottom plate has a lower flow hole corresponding to each of the longitudinal strip spaces. An upper sealing plate is slidably installed on the outer side of the top plate of the dust collector housing, and a lower sealing plate is slidably installed on the outer side of the bottom plate. Both the upper and lower sealing plates have slots that match the vertical projection shape of a single longitudinal strip space. The slots on the upper and lower sealing plates are aligned horizontally and correspond to the upper and lower flow holes, respectively. The upper sealing plate and the lower sealing plate are rigidly connected as one unit by an arched arm located on the outside of the dust collector; the telescopic end of an electric telescopic rod is fixedly connected to the arched arm, and the fixed end of the electric telescopic rod is connected to the outer wall of the dust collector; the electric telescopic rod drives the upper sealing plate and the lower sealing plate to slide laterally synchronously, so that the upper flow hole and the lower flow hole corresponding to the same filter unit open or close synchronously. The side wall of the dust collector is provided with strip-shaped air ducts corresponding to each of the longitudinal strip spaces, and the strip-shaped air ducts are connected to the longitudinal strip spaces; all the strip-shaped air ducts are divided into two groups, and the strip-shaped air ducts in the same group are connected to the same dust removal pipe through a manifold; the two dust removal pipes are connected to the exhaust branch pipe, and the exhaust branch pipe is connected to the air inlet of the fan, and an air-dust separation device is provided at the connection position; each of the dust removal pipes is equipped with a solenoid valve; The dust collector is equipped with an upper cover on top, and the upper cover has an air outlet on top. The air outlet is connected to the air inlet of the fan through a main air duct. The dust collector is equipped with a lower cover on bottom, and the lower cover has an air inlet. The lower cover is connected to the longitudinal strip space, and the upper cover is connected to the clean air side.

[0005] Furthermore, the vertical cylindrical partitions inside the filter cartridge frame are detachable.

[0006] Furthermore, the filter cartridge frame has a cylindrical structure, and at least two longitudinally arranged clearance grooves are evenly distributed on the circumferential side wall of the filter cartridge frame. The filter bag has a cylindrical structure, and multiple side chambers are evenly distributed on the circumferential side of the filter bag. The clearance grooves are used to avoid the side chambers.

[0007] Furthermore, the number of slots on the upper sealing plate and the lower sealing plate is equal, and both are equal to half the total number of longitudinal strip spaces; the total number of longitudinal strip spaces is an even number.

[0008] Furthermore, the extension stroke of the electric telescopic rod is equal to the width of one of the longitudinal strip spaces.

[0009] Furthermore, the solenoid valves on the two cleaning pipes are configured to open alternately or close synchronously.

[0010] Furthermore, the filter bag is made of membrane filter material or filter material with an antistatic coating.

[0011] Furthermore, the dust outlet of the gas-dust separation device is connected to the ash hopper.

[0012] Furthermore, the gas-dust separation device is a cyclone separator, a settling chamber, or a filter cartridge separator.

[0013] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention achieves online dust removal without stopping the machine and ensuring uninterrupted airflow by synchronously sliding the upper and lower sealing plates, allowing the first and second filtration chambers separated inside the filter bag to alternate between filtration and dust removal states. The connection between the strip-shaped air duct, dust removal pipe, and solenoid valve to the fan inlet allows the same fan to operate continuously during filtration and dust removal. The solenoid valve switches the dust removal air path, eliminating the need for repeated fan start-stop cycles and reducing fan losses. A one-way valve is installed on the side wall of the dust collector corresponding to the longitudinal strip space, supplying gas to the longitudinal strip space during dust removal and suction, allowing the filter bag to be re-exposed and dust removed without the need for an external compressed air source. Attached Figure Description

[0014] Figure 1 This is a structural schematic diagram of an environmentally friendly waste gas dust removal device; Figure 2 This is a schematic diagram of the dust collector housing. Figure 3 A schematic diagram of the top view of the dust collector after removing the upper and lower covers. Figure 4 A schematic diagram of the bottom view of the dust collector after removing the upper and lower covers. Figure 5 This is a structural diagram of the upper sealing plate, lower sealing plate, and bow-shaped arm; Figure 6 This is a schematic diagram of the structure of a strip-shaped airway; Figure 7 This is a schematic diagram of the top flow passage structure; Figure 8 This is a schematic diagram of the bottom flow passage structure; Figure 9 This is a structural diagram of the filter cartridge frame, filter bag, internal partition, and zone partition; Figure 10 This is a structural diagram of the filter cartridge holder and filter bag; Figure 11 This is a schematic diagram of the specific structure of the filter cartridge holder; Figure 12 This is a schematic diagram of the specific structure of the filter bag.

[0015] In the diagram: 1. Dust collector housing; 2. Lower cover; 3. Air inlet; 4. Upper cover; 5. Air outlet; 6. Main air duct; 7. Exhaust branch pipe; 8. Fan; 9. Electric telescopic rod; 10. Bow-shaped arm; 11. Dust removal pipe; 12. Solenoid valve; 13. Upper sealing plate; 14. Lower sealing plate; 15. Groove; 16. Strip-shaped air duct; 18. Internal partition; 19. Filter cartridge holder; 20. Vertical cylindrical partition; 21. Circulation groove; 22. Filter bag; 23. Side chamber; 24. Flow hole; 25. Zone partition; 26. One-way valve. Detailed Implementation

[0016] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. 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.

[0017] Example 1

[0018] Please see Figures 1 to 8 This embodiment provides an environmentally friendly waste gas dust removal device, including a dust collection box 1 and a fan 8. A lower cover 2 is installed at the bottom of the dust collection box 1, and an air inlet 3 is provided on the lower cover 2. An upper cover 4 is installed at the top of the dust collection box 1, and an air outlet 5 is provided at the top of the upper cover 4. The air outlet 5 is connected to the air inlet of the fan 8 through a main air duct 6.

[0019] The dust collector housing 1 is equipped with at least two rows of longitudinally arranged filter groups, each row of filter groups including at least one vertically arranged filter unit. The filter unit includes a filter cartridge frame 19 and a cylindrical filter bag 22 sleeved on the filter cartridge frame 19. The filter cartridge frame 19 is provided with a vertical cylindrical partition 20, which divides the inner cavity of the cylindrical filter bag 22 into a first filter chamber and a second filter chamber that are independent of each other.

[0020] The dust collector housing 1 is also equipped with vertical internal partitions 18 and zone partitions 25. Internal partitions 18 are used to enclose and isolate adjacent rows of filter units within the dust collector housing 1. Zone partitions 25 are coplanar with vertical cylindrical partitions 20 and are used to divide the space between adjacent filter units within each enclosed space into two independent longitudinal strip spaces. The two longitudinal strip spaces are vertically connected to the first and second filter chambers of the filter units, respectively. In this embodiment, the longitudinal strip spaces constitute the dust-laden side, and the inner cavity of the dust collector housing 1 outside the filter bags 22 constitutes the clean air side.

[0021] A one-way valve 26 is installed on the side wall steel plate of the dust collector 1 corresponding to the clean air side. The one-way valve 26 is configured to allow one-way flow from the outside of the dust collector 1 to the clean air side. When the clean air side is in the filtration state, the one-way valve 26 remains closed under the action of the internal and external pressure difference; when the clean air side is in the dust removal and suction state, the one-way valve 26 opens, and clean gas is introduced into the clean air side.

[0022] The top plate of the dust collector housing 1 has an upper flow hole 24 corresponding to the clean air side, and the bottom plate has a lower flow hole 24 corresponding to each longitudinal strip space. An upper sealing plate 13 is slidably mounted laterally on the outer side of the top plate of the dust collector housing 1, and a lower sealing plate 14 is slidably mounted laterally on the outer side of the bottom plate. Both the upper sealing plate 13 and the lower sealing plate 14 have slots 15 that match the vertical projection shape of a single longitudinal strip space. The slots 15 on the upper sealing plate 13 and the lower sealing plate 14 are aligned laterally and correspond to the upper flow hole 24 and the lower flow hole 24, respectively.

[0023] The upper sealing plate 13 and the lower sealing plate 14 are rigidly connected as one unit by an arched arm 10 located on the outside of the dust collector 1. The telescopic end of an electric telescopic rod 9 is fixedly connected to the arched arm 10, and the fixed end of the electric telescopic rod 9 is connected to the outer wall of the dust collector 1. The electric telescopic rod 9 drives the upper sealing plate 13 and the lower sealing plate 14 to slide laterally synchronously, so that the upper flow hole 24 and the lower flow hole 24 corresponding to the same filter unit open or close synchronously.

[0024] The side wall of the dust collector 1 has a strip-shaped air duct 16 corresponding to each longitudinal strip space, and the strip-shaped air duct 16 is connected to the longitudinal strip space. All the strip-shaped air ducts 16 are divided into two groups, and the strip-shaped air ducts 16 in the same group are connected to the same dust removal pipe 11 through a manifold. The two dust removal pipes 11 are connected to the exhaust manifold 7, and the exhaust manifold 7 is connected to the air inlet of the fan 8, and a dust separation device is installed at the connection point. Each dust removal pipe 11 is equipped with a solenoid valve 12.

[0025] The lower cover 2 is connected to the longitudinal strip space, and the upper cover 4 is connected to the clean air side.

[0026] During filtration, the electric telescopic rod 9 drives the upper sealing plate 13 and the lower sealing plate 14 to slide synchronously, so that the upper and lower flow holes 24 corresponding to the same filter unit are simultaneously opened by the slot 15. Dust-laden exhaust gas enters from the air inlet 3 on the lower cover 2, enters the longitudinal strip space through the lower flow hole 24, and then enters the first or second filter chamber of the filter bag 22. Under the suction of the fan 8, the exhaust gas passes through the filter material from the inside of the filter bag 22 to the outside, and the dust is intercepted on the inner surface of the filter bag 22. Clean gas enters the clean air side outside the filter bag 22, then enters the upper cover 4 through the upper flow hole 24, enters the air inlet of the fan 8 through the air outlet 5 and the main air duct 6, and is finally discharged. At this time, the clean air side is in the filtration state, and the one-way valve 26 remains closed under the action of the internal and external pressure difference.

[0027] During dust removal, the electric telescopic rod 9 actuates, causing the upper sealing plate 13 and lower sealing plate 14 to slide laterally across the width of a longitudinal strip space via the bow-shaped arm 10. After sliding, the upper and lower flow holes 24 of part of the longitudinal strip space are simultaneously closed by the upper and lower sealing plates 13 and 14, and the corresponding filter bag cavity area in this part of the longitudinal strip space switches from filtration mode to dust removal mode. The solenoid valve 12 on the corresponding dust removal pipe 11 is opened, and the dust removal pipe 11 is connected to the air inlet of the fan 8 through the exhaust pipe 7. Under the suction action of the fan 8, the negative pressure in the closed longitudinal strip space increases. The one-way valve 26 is pushed open by the external atmospheric pressure, and the external gas enters the clean air side, passing through the filter material from the outside to the inside of the filter bag 22, causing the dust adhering to the inner surface of the filter bag 22 to peel off. The dust-laden airflow enters the dust separation device through the strip-shaped air duct 16 and the dust removal pipe 11. The dust is separated in the dust separation device and falls into the lower cover 2 or the dust hopper. The separated clean gas enters the air inlet of the fan 8 through the exhaust pipe 7. During the dust removal process, the other longitudinal strip spaces remain in the filtration state, and the filtration airflow is uninterrupted.

[0028] In this embodiment, the upper and lower sealing plates 13 and 14 slide synchronously, allowing the upper and lower flow holes 24 corresponding to the same filter unit to open or close synchronously, thus achieving alternating switching between filtration and dust removal states. The connection between the strip-shaped air duct 16, the dust removal pipe 11, and the solenoid valve 12 to the air inlet of the fan 8 ensures that the same fan 8 continues to operate during both filtration and dust removal processes. The solenoid valve 12 switches the dust removal air path, eliminating the need for repeated start-stop cycles of the fan 8. A one-way valve 26 is installed on the clean air side to supply gas to the clean air side during dust removal suction. The gas flows from the clean air side to the dust-laden side, passing through the filter bag 22 to remove dust, eliminating the need for an external compressed air source. An air-dust separation device separates the dust from the dust removal suction airflow, preventing dust from entering the fan 8.

[0029] Example 2

[0030] Please see Figure 1 , Figure 5 and Figure 6 Based on Embodiment 1, this embodiment further explains the connection and operation of the strip air duct 16, the dust removal pipe 11, and the air-dust separation device.

[0031] Each slot 15 of the lower sealing plate 14 has a strip-shaped air passage 16 on both sides along the transverse direction, or the strip-shaped air passage 16 is set on the side wall of the dust collector 1 and corresponds to each longitudinal strip space. All strip-shaped air passages 16 are divided into two groups. The strip-shaped air passages 16 in the same group are connected to the same dust removal pipe 11 through a manifold. The two dust removal pipes 11 are connected to the exhaust manifold 7, which is connected to the air inlet of the fan 8, and a dust separation device is provided at the connection point. Each dust removal pipe 11 is equipped with a solenoid valve 12. The solenoid valves 12 on the two dust removal pipes 11 are configured to open alternately or close synchronously. The dust outlet of the dust separation device is connected to the ash hopper. The dust separation device is a cyclone separator, a settling chamber, or a filter cartridge separator.

[0032] After the upper sealing plate 13 and the lower sealing plate 14 complete one sliding motion, a portion of the longitudinal strip space enters the dust removal state. At this time, the strip air ducts 16 corresponding to these longitudinal strip spaces are connected to the longitudinal strip spaces. The solenoid valve 12 on one of the dust removal pipes 11 is opened, and the strip air duct 16 connected to the dust removal pipe 11 is connected to the air inlet of the fan 8. The fan 8 draws gas from the strip air duct 16, creating a negative pressure in the corresponding longitudinal strip space. The one-way valve 26 introduces gas to the clean air side. After the gas passes through the filter bag 22, it carries the detached dust into the strip air duct 16 and enters the air-dust separation device through the dust removal pipe 11. The dust is separated in the air-dust separation device and falls into the ash hopper or the lower cover 2. The separated clean gas enters the air inlet of the fan 8 through the exhaust pipe 7.

[0033] After cleaning is complete, close the solenoid valve 12. In the next cycle, the solenoid valve 12 on another cleaning pipe 11 can be opened to clean another set of longitudinal strip spaces. The two solenoid valves 12 are opened alternately, allowing the two sets of strip air passages 16 to participate in cleaning in turn. When cleaning is not required, both solenoid valves 12 are closed.

[0034] In this embodiment, the strip-shaped air ducts 16 are connected in groups to two cleaning pipes 11, and their on / off states are controlled by solenoid valves 12. The cleaning airflow and the filtration airflow share the same air inlet of the fan 8, so the fan 8 does not need to change its operating state. The solenoid valves 12 open alternately, and the cleaning process is carried out sequentially in groups, avoiding the entire longitudinal strip space from participating in cleaning at the same time and affecting the overall filtration efficiency. The air-dust separation device is set at the connection between the exhaust pipe 7 and the air inlet of the fan 8, so that the cleaning exhaust airflow first undergoes air-dust separation before entering the fan 8, preventing dust from entering the fan 8.

[0035] Example 3

[0036] Please see Figure 1 , Figures 7 to 12 This embodiment further illustrates the specific structure of the filtering unit based on Embodiment 1 or Embodiment 2.

[0037] The filtration unit includes a filter cartridge holder 19 and a filter bag 22. The filter cartridge holder 19 has a cylindrical structure and a vertical cylindrical partition 20 inside. The vertical cylindrical partition 20 is detachable. After removing the vertical cylindrical partition 20, the filter bag 22 can be removed from or installed on the filter cartridge holder 19. At least two longitudinally arranged clearance grooves 21 are evenly distributed on the circumferential sidewalls of the filter cartridge holder 19. The filter bag 22 has a cylindrical structure and multiple side chambers 23 are evenly distributed on its circumference. The clearance grooves 21 are used to avoid the side chambers 23.

[0038] The filter bag 22 is fitted onto the outside of the filter cartridge frame 19. The side chambers 23 on the filter bag 22 are embedded in the clearance grooves 21 on the filter cartridge frame 19, and the circumferential surface of the filter bag 22 forms a textured structure. When dust-laden gas flows inside the filter bag 22, the filtration area of ​​the filter bag 22 is increased compared to ordinary cylindrical filter bags. Within the same dust collector housing volume 1, the filter bag 22 can provide a larger filtration area and reduce the filtration velocity.

[0039] When the filter bag 22 needs to be replaced, remove the vertical cylindrical partition 20 from the filter cartridge holder 19 to free up the internal space of the filter cartridge holder 19, and the filter bag 22 can be removed from the filter cartridge holder 19. After replacement, reinstall the vertical cylindrical partition 20 into the filter cartridge holder 19 to restore the isolation between the first and second filter chambers.

[0040] The cooperation between the side chamber 23 and the clearance groove 21 keeps the filter bag 22 in an extended state during the alternating process of filtration and cleaning. During backflushing cleaning, the filter bag 22 is less likely to stick to the surface of the filter cartridge frame 19, and the detached dust can fall along the inner surface of the filter bag 22 to the lower cover 2.

[0041] In this embodiment, the filter bag 22 engages with the clearance groove 21 on the filter cartridge frame 19 via the side chamber 23, increasing the filtration area and reducing the filtration velocity. The vertical cylindrical partition 20 is detachable, facilitating the replacement of the filter bag 22 and the cleaning of the filter cartridge frame 19. The filter bag 22 remains unfolded during dust removal, ensuring an unobstructed dust removal path.

Claims

1. An environmentally friendly waste gas dust removal device, characterized in that, Includes a dust collector housing (1) and a fan (8): The dust collector housing (1) is provided with at least two rows of longitudinally arranged filter groups, each row of filter groups including at least one vertically arranged filter unit; the filter unit includes a filter cartridge frame (19) and a cylindrical filter bag (22) sleeved on the filter cartridge frame (19), the filter cartridge frame (19) is provided with a vertical cylindrical partition (20), the vertical cylindrical partition (20) divides the inner cavity of the cylindrical filter bag (22) into a first filter cavity and a second filter cavity that are independent of each other; The dust collector housing (1) is also provided with vertical internal partitions (18) and area partitions (25). The internal partitions (18) are used to enclose and isolate adjacent filter groups within the dust collector housing (1). The area partitions (25) are coplanar with the vertical cylindrical partitions (20) and are used to divide the space between adjacent filter units in each enclosed space into two independent longitudinal strip spaces. The two longitudinal strip spaces are respectively connected vertically to the first filter chamber and the second filter chamber of the filter unit. The longitudinal strip space constitutes the dust-containing side, and the inner cavity of the dust collection box (1) outside the filter bag (22) constitutes the clean air side. A one-way valve (26) is installed on the side wall steel plate of the dust collector (1) corresponding to the clean air side; the one-way valve (26) is configured to allow one-way flow from the outside of the dust collector (1) to the clean air side, and to close when filtering on the clean air side and open when cleaning to replenish air to the clean air side; The dust collector (1) has an upper flow hole (24) on its top plate corresponding to the clean air side, and a lower flow hole (24) on its bottom plate corresponding to each of the longitudinal strip spaces. An upper sealing plate (13) is slidably installed on the outer side of the top plate of the dust collector (1), and a lower sealing plate (14) is slidably installed on the outer side of the bottom plate. Both the upper sealing plate (13) and the lower sealing plate (14) have slots (15) that are adapted to the vertical projection shape of a single longitudinal strip space. The slots (15) on the upper sealing plate (13) and the slots (15) on the lower sealing plate (14) are aligned horizontally and correspond to the upper flow hole (24) and the lower flow hole (24) respectively. The upper sealing plate (13) and the lower sealing plate (14) are rigidly connected as one unit by an arched arm (10) located on the outside of the dust collector (1); the telescopic end of an electric telescopic rod (9) is fixedly connected to the arched arm (10), and the fixed end of the electric telescopic rod (9) is connected to the outer wall of the dust collector (1); the electric telescopic rod (9) drives the upper sealing plate (13) and the lower sealing plate (14) to slide horizontally in sync, so that the upper flow hole (24) and the lower flow hole (24) corresponding to the same filter unit open or close synchronously. The dust collector (1) has a strip-shaped air duct (16) on its side wall corresponding to each of the longitudinal strip spaces. The strip-shaped air duct (16) is connected to the longitudinal strip space. All the strip-shaped air ducts (16) are divided into two groups. The strip-shaped air ducts (16) in the same group are connected to the same dust removal pipe (11) through a manifold. The two dust removal pipes (11) are connected to the exhaust pipe (7). The exhaust pipe (7) is connected to the air inlet of the fan (8) and a dust separation device is provided at the connection position. Each dust removal pipe (11) is equipped with a solenoid valve (12). The dust collector (1) is equipped with an upper cover (4) on top, and the upper cover (4) is provided with an air outlet (5) on top. The air outlet (5) is connected to the air inlet of the fan (8) through the main air pipe (6). The dust collector (1) is equipped with a lower cover (2) on bottom, and the lower cover (2) is provided with an air inlet (3). The lower cover (2) is connected to the longitudinal strip space, and the upper cover (4) is connected to the clean air side.

2. The environmentally friendly waste gas dust removal equipment according to claim 1, characterized in that: The vertical cylindrical partition (20) inside the filter cartridge frame (19) is detachable.

3. The environmentally friendly waste gas dust removal equipment according to claim 2, characterized in that: The filter cartridge holder (19) is a cylindrical structure. At least two longitudinally arranged clearance grooves (21) are evenly distributed on the circumferential side wall of the filter cartridge holder (19). The filter bag (22) is a cylindrical structure. Multiple side chambers (23) are evenly distributed on the circumferential side of the filter bag (22). The clearance grooves (21) are used to avoid the side chambers (23).

4. The environmentally friendly waste gas dust removal equipment according to claim 1, characterized in that: The number of slots (15) on the upper sealing plate (13) and the lower sealing plate (14) is equal, and both are equal to half of the total number of longitudinal strip spaces; the total number of longitudinal strip spaces is an even number.

5. The environmentally friendly waste gas dust removal equipment according to claim 1, characterized in that: The telescopic stroke of the electric telescopic rod (9) is equal to the width of one of the longitudinal strip spaces.

6. The environmentally friendly waste gas dust removal equipment according to claim 1, characterized in that: The solenoid valves (12) on the two cleaning pipes (11) are configured to open alternately or close synchronously.

7. The environmentally friendly waste gas dust removal equipment according to claim 1, characterized in that: The filter bag (22) is made of membrane filter material or filter material with antistatic coating.

8. The environmentally friendly waste gas dust removal equipment according to claim 1, characterized in that: The dust outlet of the gas-dust separation device is connected to the ash hopper.

9. The environmentally friendly waste gas dust removal equipment according to claim 8, characterized in that: The gas-dust separation device is a cyclone separator, a settling chamber, or a filter cartridge separator.

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