Wooden furniture production and processing waste gas dedusting and purifying equipment

Abstract

The application relates to the technical field of waste gas dust removal equipment, and discloses a waste gas dust removal and purification equipment for wood furniture production and processing, which comprises a base, the top of the base is fixedly connected with a cyclone dust collector, and the top of the base is fixedly connected with an air pressure pump. In view of the problem that the equipment needs to be stopped during the ash removal mode, a limiting mechanism and a pressure mechanism are arranged in the equipment. When the equipment needs to be cleaned, pulse gas is discharged downward through the rotary connecting head, high-pressure gas is transmitted to the inside of the triangular pipe through the rotary connecting head and diffused outward, finally acts on the inner wall of the filter cloth, and the impurities attached to the outer wall of the filter cloth are sprayed outward, and the airflow sprayed outward carries the impurities into the inner wall of the arc-shaped groove, and finally is discharged outward through the ash discharge pipe, so that the ash removal process can be completed without stopping the equipment when the equipment needs to be discharged.

Description

Technical Field

[0001] This invention relates to the field of waste gas dust removal equipment technology, specifically a waste gas dust removal and purification equipment for the production and processing of wooden furniture. Background Technology

[0002] This dust removal and purification device for exhaust gas from wooden furniture production is primarily designed for wood dust generated during the cutting, sanding, and polishing processes. The equipment employs a composite purification structure of cyclone pre-separation and cartridge filtration, representing a multi-mechanism synergistic gas-solid separation system. Dust-laden exhaust gas first passes through a cyclone mechanism to separate large wood dust particles, then enters the cartridge unit to trap fine wood dust. A pulse automatic cleaning system ensures continuous purification. The equipment features anti-static and explosion-proof protection structures to mitigate the risk of wood dust combustion and explosion. It efficiently removes dispersed wood particles from the airflow, ensuring the purified exhaust gas meets emission standards, effectively improving workshop conditions, reducing dust safety hazards, and boasts a compact structure and convenient operation and maintenance, making it suitable for various wooden furniture processing production lines.

[0003] After long-term operation, the filter cartridges require periodic cleaning via pulse cleaning, which typically necessitates equipment shutdown. During shutdown, the purification device loses its waste gas filtration capacity, forcing furniture processing to be paused or dust to be directly discharged. This directly restricts continuous production line operation, and the continuously generated dust cannot be effectively treated, significantly reducing the overall processing efficiency of the factory. Summary of the Invention

[0004] To solve the above-mentioned technical problems, the present invention provides a waste gas dust removal and purification device for wooden furniture production and processing, including a base, a cyclone dust collector fixedly connected to the top of the base, an air pressure pump fixedly connected to the top of the base, a fixing frame clamped on the inner wall of the air pressure pump, a fixing plate fixedly connected to the bottom of the fixing frame, a filter screen fixedly connected to the inner wall of the fixing plate, and a filter cloth clamped on the inner wall of the fixing plate, and further including: The limiting mechanism is rotatably installed on the inner wall of the filter screen. The limiting mechanism includes a ring frame rotatably connected to the inner wall of the filter screen, a triangular tube fixedly connected to the inner wall of the ring frame, a fixing block fixedly connected to the inner wall of the triangular tube, and a sliding rod slidably connected to the inner wall of the through hole of the fixing block. The pressure mechanism is fixedly installed at the bottom of the triangular tube. The pressure mechanism includes a fixed plate two fixedly connected to the bottom of the circular frame. A rotating rod is fixedly connected to the bottom of the fixed plate two. An arc groove is fixedly connected to the bottom of the fixed plate two. A sliding rod two is fixedly connected to the inner wall of the arc groove. A pushing component is slidably disposed on the inner wall of the through hole of the arc-shaped groove. The pushing component includes a sliding rod three that is slidably connected to the inner wall of the through hole of the arc-shaped groove. A CNC motor is fixedly connected to the inner wall of the air pressure pump, and the output end of the CNC motor is fixedly connected to the end of the rotating rod away from the second fixed plate. The inner wall of the arc-shaped groove is rotatably connected to the outer wall of the first fixed plate.

[0005] Preferably, the limiting mechanism also includes: The connecting component is fixedly mounted on the top of the triangular tube; A sliding component is fixedly mounted on the top of the sliding rod. In addition, the arc-shaped surface of the triangular tube fits against the inner wall of the filter screen, and the high-pressure gas output downward from the connecting component is ejected outward through the port of the triangular tube, impacting the inner wall of the filter cloth.

[0006] Preferably, the pressure mechanism further includes: Auxiliary components are installed on the inner wall of the rotating rod; The contact component is slidably disposed on the inner wall of the sliding rod two; In normal operation, the spring at the top of the fixed block pushes the sliding component upward, thus blocking the internal channel of the rotating connector.

[0007] Preferably, the driving component also includes: The tensioning component is fixedly installed at the bottom of the sliding rod three; The outer wall of the sliding rod is slidably connected to the inner wall of the rotating rod through the hole.

[0008] Preferably, the connecting assembly includes a rotating connector fixedly connected to the top of the triangular tube; The rotating connector has a flexible hose at the top, and an external pulse air pressure pipe is connected to the hose. When cleaning is required, the external high-pressure pulse gas is transmitted through the hose to the inner wall of the triangular tube and finally pressurized on the inner wall of the filter cloth.

[0009] Preferably, the sliding assembly includes a circular tube plug that is slidably connected to the inner wall of the rotating connector; The outer wall of the top of the round tube plug has an air vent; under normal conditions, the spring above the fixed block pushes the round tube plug to block the internal channel of the rotating connector.

[0010] Preferably, the auxiliary component includes a groove formed on the side wall of the rotating rod; The central angle of the arc segment of the arc groove is 60°; the pneumatic pump has a built-in CNC motor that drives the rotating rod and the second fixed plate to rotate synchronously with the ring frame by 30° in a single drive.

[0011] Preferably, the contact assembly includes an arc-shaped contact ring slidably connected to the outer wall of the sliding rod, and a push rod is rotatably connected to the inner wall of the groove of the arc-shaped contact ring; The end of the push rod away from the arc-shaped contact ring is hinged to the inner wall of the sliding rod three. The bottom of the arc-shaped groove is connected to a ash discharge pipe. The connector of the ash discharge pipe is a rotatable joint. The ash discharge pipe is connected to the bottom through hole of the air pressure pump. A valve is set at the through hole position. When ash cleaning is required, the valve is opened. When ash cleaning is not required, the valve is closed.

[0012] Preferably, the pulling assembly includes a pulling rod fixedly connected to the bottom of the sliding rod three; The end of the pull rod furthest from the sliding rod three is fixedly connected to the bottom of the sliding rod one.

[0013] The present invention has the following beneficial effects: (1) In view of the problem that the equipment needs to be stopped in the dust removal mode, the present invention has a limiting mechanism and a pressure mechanism inside the equipment. When the equipment needs to be cleaned, the pulse gas is discharged downward through the rotating connector, and the high pressure gas is transmitted to the inside of the triangular tube through the rotating connector and diffuses outward. Finally, it acts on the inner wall of the filter cloth and sprays the impurities attached to the outer wall of the filter cloth outward. The airflow that is sprayed outward will carry the impurities into the inner wall of the arc groove and finally be discharged outward through the ash discharge pipe. Through the above design, the equipment can complete the dust removal process without stopping when it needs to be discharged.

[0014] (2) The present invention utilizes the above-mentioned non-stop dust removal design. When the filter cloth is slightly blocked, the CNC motor is started to continuously change the orientation of the triangular tube, so that the pulse gas can be applied to the inner wall of the filter cloth through the triangular tube to perform an orderly dust removal process on the inner wall of the filter cloth. Compared with the traditional shutdown dust removal scheme, this structure can avoid the continuous accumulation of dust causing the filter cloth's air permeability to decrease, and maintain a stable dust removal and filtration effect for a long time.

[0015] (3) The present invention utilizes the above-mentioned design of a rotating connector for transmitting pulsed gas. A contact component and a pushing component are provided inside the device. When the pulsed gas is discharged downwards through the rotating connector, the gas pressure forces the circular plug to slide downwards along the inner wall of the rotating connector. Figure 8 The state changes to Figure 9 In this state, the sliding tube plug will cause the sliding rod one to move downwards in sync. At the same time, the pulling rod will cause the sliding rod three to move downwards in sync, and through the pushing rod, it will push the arc-shaped contact ring along the inner wall of the sliding rod two towards the filter cloth, so that the inner wall of the arc-shaped contact ring is tightly attached to the side wall of the filter cloth. Through the above design, during the dust removal operation, the arc-shaped contact ring is tightly attached to the outer wall of the filter cloth to provide rigid support, preventing the filter cloth from being impacted by the internal pulse airflow and causing local bulging and stacking, ensuring that every area of ​​the filter cloth can be fully cleaned by the airflow.

[0016] (4) The present invention adopts two-stage separation of cyclone dust removal and filter cartridge fine filtration, which intercepts large wood chips in advance, reduces the load on the filter cartridge, and extends the service life of the filter cloth; the blowing mechanism is controlled by a CNC motor to rotate in sections, and the dust is cleaned in an orderly manner in sections, avoiding the accumulation of dust. Simultaneously, an independent dust discharge pipeline is provided, making dust collection and discharge more convenient. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the filter cartridge structure of the present invention; Figure 3 This is a schematic diagram of the internal structure of the filter cartridge of the present invention; Figure 4 This is a cross-sectional schematic diagram of the limiting mechanism of the present invention; Figure 5 This is a schematic diagram of the limiting mechanism of the present invention; Figure 6 This is a cross-sectional schematic diagram of the pressure mechanism of the present invention; Figure 7 This is a cross-sectional view of the component of the present invention; Figure 8 For the present invention Figure 7 Enlarged view of point A in the middle; Figure 9 This is a partial schematic diagram of the working state of the limiting mechanism of the present invention; Figure 10 This is a schematic diagram of the driving component of the present invention; Figure 11 For the present invention Figure 10 Enlarged diagram of point A in the middle.

[0019] The attached diagram lists the components represented by each number as follows: In the diagram: 1. Restriction mechanism; 11. Connecting assembly; 12. Sliding assembly; 13. Base; 14. Cyclone dust collector; 15. Air pressure pump; 16. Fixing frame; 17. Fixing plate one; 18. Filter screen; 19. Filter cloth; 111. Circular ring frame; 112. Triangular tube; 113. Rotating connector; 121. Fixing block; 122. Sliding rod one; 123. Circular tube plug; 2. Pressure mechanism; 21. Auxiliary assembly; 22. Contact assembly; 211. Fixing plate two; 212. Rotating rod; 213. Slide groove; 221. Arc groove; 222. Sliding rod two; 223. Arc contact ring; 224. Push rod; 3. Pushing assembly; 31. Pulling assembly; 311. Sliding rod three; 312. Pulling rod. Detailed Implementation

[0020] 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.

[0021] Example 1, please refer to Figures 1-8 This invention relates to a waste gas dust removal and purification device for wooden furniture production and processing, comprising a base 13, a cyclone dust collector 14 fixedly connected to the top of the base 13, an air pressure pump 15 fixedly connected to the top of the base 13, a fixing frame 16 clamped to the inner wall of the air pressure pump 15, a fixing plate 17 fixedly connected to the bottom of the fixing frame 16, a filter screen 18 fixedly connected to the inner wall of the fixing plate 17, and a filter cloth 19 clamped to the inner wall of the fixing plate 17, and further comprising: The limiting mechanism 1 is rotatably disposed on the inner wall of the filter screen 18. The limiting mechanism 1 includes a ring frame 111 rotatably connected to the inner wall of the filter screen 18, a triangular tube 112 fixedly connected to the inner wall of the ring frame 111, a fixing block 121 fixedly connected to the inner wall of the triangular tube 112, and a sliding rod 122 slidably connected to the inner wall of the through hole of the fixing block 121. Pressure mechanism 2 is fixedly installed at the bottom of triangular tube 112. Pressure mechanism 2 includes a fixed plate 211 fixedly connected to the bottom of ring frame 111. A rotating rod 212 is fixedly connected to the bottom of fixed plate 211. An arc groove 221 is fixedly connected to the bottom of fixed plate 211. A sliding rod 222 is fixedly connected to the inner wall of arc groove 221. Push component 3 is slidably disposed on the inner wall of the through hole of the arc groove 221. Push component 3 includes a sliding rod 311 slidably connected to the inner wall of the through hole of the arc groove 221. Before use, install and fix the equipment at the designated workstation. After completing all pipeline connections and electrical control instrument debugging, connect the production line exhaust gas pipeline to the inlet of the cyclone dust collector 14. The dusty exhaust gas from wood processing is introduced into the cyclone dust collector 14. Large wood dust particles are pre-separated, and the remaining airflow containing fine dust is sent into the filter cartridge purification box. After initial separation, the airflow passes through the fixed frame 16 and enters the inner side of the filter screen 18. The fine wood dust in the airflow is intercepted by the filter cloth 19, thus completing the dust removal and purification of the exhaust gas.

[0022] Restriction Agency 1 also includes: Connecting component 11 is fixedly mounted on the top of triangular tube 112; Sliding component 12 is fixedly mounted on the top of sliding rod 122; In addition, the arc-shaped surface of the triangular tube 112 fits against the inner wall of the filter screen 18, and the high-pressure gas output downward from the connecting component 11 is ejected outward through the port of the triangular tube 112, impacting the inner wall of the filter cloth 19.

[0023] Pressure mechanism 2 also includes: Auxiliary component 21 is disposed on the inner wall of the rotating rod 212; Contact component 22 is slidably disposed on the inner wall of sliding rod 222; In normal conditions, the spring at the top of the fixed block 121 pushes the sliding assembly 12 upwards, causing it to block the internal channel of the rotating connector 113.

[0024] Component 3 also includes: Pulling component 31 is fixedly installed at the bottom of sliding rod 311; Utilizing the aforementioned non-stop dust removal design, the equipment can start a CNC motor to continuously change the orientation of the triangular tube 112 when the filter cloth becomes slightly clogged. This allows pulsed gas to be applied to the inner wall of the filter cloth 19 through the triangular tube 112, performing an orderly dust removal process on the inner wall of the filter cloth 19. Compared with the traditional shutdown dust removal scheme, this structure can avoid the continuous accumulation of dust that causes the filter cloth's air permeability to decrease, and maintain a stable dust removal and filtration effect over a long period of time.

[0025] Example 2, please refer to Figures 4-11 The present invention is a waste gas dust removal and purification device for the production and processing of wooden furniture. Based on the first embodiment, the connecting component 11 includes a rotating connector 113 fixedly connected to the top of the triangular tube 112. To address the issue of needing to shut down the equipment during dust removal, a limiting mechanism 1 and a pressure mechanism 2 are installed inside the equipment. When dust removal is required, pulsed gas is discharged downwards through the rotating connector 113, and high-pressure gas is transmitted to the inside of the triangular tube 112 through the rotating connector 113 and diffuses outwards, ultimately acting on the inner wall of the filter cloth 19 and spraying outwards the impurities attached to the outer wall of the filter cloth 19. The outwardly sprayed airflow carries the impurities into the inner wall of the arc-shaped groove 221 and is finally discharged outwards through the ash discharge pipe. Through the above design, the equipment can complete the dust removal process without stopping when ash discharge is required.

[0026] The sliding assembly 12 includes a circular tube plug 123 that is slidably connected to the inner wall of the rotating connector 113; The design of transmitting pulsed gas using the aforementioned rotary connector 113 includes a contact component 22 and a pushing component 3 inside the device. When the pulsed gas is discharged downwards through the rotary connector 113, the gas pressure forces the circular plug 123 to slide downwards along the inner wall of the rotary connector 113. Figure 8 The state changes to Figure 9In this state, the sliding tube plug 123 will drive the sliding rod 122 to move downwards in sync.

[0027] The auxiliary component 21 includes a groove 213 formed on the side wall of the rotating rod 212; Among them, the central angle of the arc segment of the arc groove 221 is 60°; the air pressure pump 15 has a built-in CNC motor that drives the rotating rod 212, the fixed plate 211 and the ring frame 111 to rotate synchronously by 30°.

[0028] The contact assembly 22 includes an arc-shaped contact ring 223 that is slidably connected to the outer wall of the sliding rod 222, and a push rod 224 is rotatably connected to the inner wall of the groove of the arc-shaped contact ring 223; Among them, the end of the push rod 224 away from the arc-shaped contact ring 223 is hinged to the inner wall of the sliding rod 311. The bottom of the arc-shaped groove 221 is connected to the ash discharge pipe. The connector of the ash discharge pipe is a rotatable joint. The ash discharge pipe is connected to the bottom through hole of the air pressure pump 15. A valve is provided at the through hole position. When ash cleaning is required, the valve is opened and when ash cleaning is not required, the valve is closed.

[0029] The pulling assembly 31 includes a pulling rod 312 that is fixedly connected to the bottom of the sliding rod 311; Pulling rod 312 drives sliding rod 311 to move down synchronously, and push rod 224 pushes arc-shaped contact ring 223 to move along the inner wall of sliding rod 222 towards filter cloth 19, so that the inner wall of arc-shaped contact ring 223 is in close contact with the side wall of filter cloth 19. Through the above design, during the dust removal operation, the arc-shaped contact ring is in close contact with the outer wall of filter cloth to provide rigid support, preventing the filter cloth from being impacted by the internal pulse airflow and causing local bulging and stacking, ensuring that every area of ​​the filter cloth can be fully cleaned by the airflow.

[0030] One specific application of this embodiment is as follows: Before use, the equipment is first installed and fixed at the designated workstation. After completing all pipeline connections and electrical control instrument debugging, the production line exhaust gas pipeline is connected to the air inlet of the cyclone dust collector 14. The dusty exhaust gas from wood processing is introduced into the cyclone dust collector 14. Large wood dust particles are pre-separated, and the remaining airflow containing fine dust is sent into the filter cartridge purification box. After initial separation, the airflow passes through the fixed frame 16 and enters the inner side of the filter screen 18. The fine wood dust in the airflow is intercepted by the filter cloth 19, thereby completing the dust removal and purification of the exhaust gas.

[0031] To address the issue of needing to shut down the equipment during dust removal, a limiting mechanism 1 and a pressure mechanism 2 are installed inside the equipment. When dust removal is required, pulsed gas is discharged downwards through the rotating connector 113, and high-pressure gas is transmitted to the inside of the triangular tube 112 through the rotating connector 113 and diffuses outwards, ultimately acting on the inner wall of the filter cloth 19 and spraying outwards the impurities attached to the outer wall of the filter cloth 19. The outwardly sprayed airflow carries the impurities into the inner wall of the arc-shaped groove 221 and is finally discharged outwards through the ash discharge pipe. Through the above design, the equipment can complete the dust removal process without stopping when ash discharge is required.

[0032] Utilizing the aforementioned non-stop dust removal design, the equipment can start a CNC motor to continuously change the orientation of the triangular tube 112 when the filter cloth becomes slightly clogged. This allows pulsed gas to be applied to the inner wall of the filter cloth 19 through the triangular tube 112, performing an orderly dust removal process on the inner wall of the filter cloth 19. Compared with the traditional shutdown dust removal scheme, this structure can avoid the continuous accumulation of dust that causes the filter cloth's air permeability to decrease, and maintain a stable dust removal and filtration effect over a long period of time.

[0033] The design of transmitting pulsed gas using the aforementioned rotary connector 113 includes a contact component 22 and a pushing component 3 inside the device. When the pulsed gas is discharged downwards through the rotary connector 113, the gas pressure forces the circular plug 123 to slide downwards along the inner wall of the rotary connector 113. Figure 8 The state changes to Figure 9 In this state, the sliding tube plug 123 will drive the sliding rod 122 to move downwards in sync. At the same time, the pulling rod 312 will drive the sliding rod 311 to move downwards in sync, and push the arc-shaped contact ring 223 along the inner wall of the sliding rod 222 towards the filter cloth 19 through the pushing rod 224. This makes the inner wall of the arc-shaped contact ring 223 tightly adhere to the side wall of the filter cloth 19. Through the above design, during the dust removal operation, the arc-shaped contact ring tightly adheres to the outer wall of the filter cloth to provide rigid support, preventing the filter cloth from being impacted by the internal pulse airflow and causing local bulging and stacking, ensuring that every area of ​​the filter cloth can be fully cleaned by the airflow.

[0034] 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 the specific implementations described. 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 waste gas dust removal and purification device for wooden furniture production and processing, comprising a base (13), a cyclone dust collector (14) fixedly connected to the top of the base (13), an air pressure pump (15) fixedly connected to the top of the base (13), a fixing frame (16) clamped on the inner wall of the air pressure pump (15), a fixing plate (17) fixedly connected to the bottom of the fixing frame (16), a filter screen (18) fixedly connected to the inner wall of the fixing plate (17), and a filter cloth (19) clamped on the inner wall of the fixing plate (17), characterized in that, Also includes: A limiting mechanism (1) is rotatably disposed on the inner wall of the filter screen (18). The limiting mechanism (1) includes a ring frame (111) rotatably connected to the inner wall of the filter screen (18). A triangular tube (112) is fixedly connected to the inner wall of the ring frame (111). A fixing block (121) is fixedly connected to the inner wall of the triangular tube (112). A sliding rod (122) is slidably connected to the inner wall of the through hole of the fixing block (121). Pressure mechanism (2), the pressure mechanism (2) is fixedly installed at the bottom of the triangular tube (112), the pressure mechanism (2) includes a fixed plate two (211) fixedly connected to the bottom of the ring frame (111), a rotating rod (212) is fixedly connected to the bottom of the fixed plate two (211), an arc groove (221) is fixedly connected to the bottom of the fixed plate two (211), and a sliding rod two (222) is fixedly connected to the inner wall of the arc groove (221). Pushing component (3), which is slidably disposed on the inner wall of the through hole of the arc groove (221), the pushing component (3) includes a sliding rod three (311) slidably connected to the inner wall of the through hole of the arc groove (221). Among them, a CNC motor is fixedly connected to the inner wall of the air pressure pump (15), and the output end of the CNC motor is fixedly connected to the end of the rotating rod (212) away from the fixed plate two (211). The inner wall of the arc groove (221) is rotatably connected to the outer wall of the fixed plate one (17).

2. The waste gas dust removal and purification equipment for wooden furniture production and processing according to claim 1, characterized in that: The limiting mechanism (1) further includes: A connecting component (11) is fixedly disposed on the top of the triangular tube (112); A sliding component (12) is fixedly disposed on the top of a sliding rod (122); In addition, the arc-shaped surface of the triangular tube (112) fits against the inner wall of the filter screen (18), and the high-pressure gas output downward by the connecting component (11) is ejected outward through the port of the triangular tube (112) and impacts the inner wall of the filter cloth (19).

3. The waste gas dust removal and purification equipment for wooden furniture production and processing according to claim 2, characterized in that: The pressure mechanism (2) further includes: An auxiliary component (21) is disposed on the inner wall of the rotating rod (212); Contact component (22), which is slidably disposed on the inner wall of sliding rod two (222); In the normal state, the spring at the top of the fixed block (121) pushes the sliding assembly (12) upward, causing it to block the internal channel of the rotating connector (113).

4. The waste gas dust removal and purification equipment for wooden furniture production and processing according to claim 3, characterized in that: The actuation component (3) also includes: A pulling assembly (31) is fixedly disposed at the bottom of the sliding rod three (311); The outer wall of the sliding rod (122) is slidably connected to the inner wall through hole of the rotating rod (212).

5. The waste gas dust removal and purification equipment for wooden furniture production and processing according to claim 2, characterized in that: The connecting assembly (11) includes a rotating connector (113) fixedly connected to the top of the triangular tube (112). The top of the rotating connector (113) is connected to a hose, and the external pulse air pressure pipe is connected to the hose. When cleaning is required, the external high-pressure pulse gas is transmitted through the hose to the inner wall of the triangular tube (112) and finally pressurized on the inner wall of the filter cloth (19).

6. The waste gas dust removal and purification equipment for wooden furniture production and processing according to claim 5, characterized in that: The sliding assembly (12) includes a circular tube plug (123) that is slidably connected to the inner wall of the rotating connector (113). Among them, the outer wall of the top of the round tube plug (123) has an air vent; under normal conditions, the spring above the fixed block (121) pushes the round tube plug (123) to block the internal channel of the rotating connector (113).

7. The waste gas dust removal and purification equipment for wooden furniture production and processing according to claim 3, characterized in that: The auxiliary component (21) includes a groove (213) formed on the side wall of the rotating rod (212). Among them, the arc-shaped groove (221) has a central angle of 60°; the air pressure pump (15) has a built-in CNC motor that drives the rotating rod (212), the fixed plate (211) and the ring frame (111) to rotate synchronously by 30°.

8. The waste gas dust removal and purification equipment for wooden furniture production and processing according to claim 4, characterized in that: The contact assembly (22) includes an arc-shaped contact ring (223) slidably connected to the outer wall of the sliding rod (222), and a push rod (224) is rotatably connected to the inner wall of the groove of the arc-shaped contact ring (223). Among them, the end of the push rod (224) away from the arc-shaped contact ring (223) is hinged to the inner wall of the sliding rod three (311). The bottom of the arc-shaped groove (221) is connected to the ash discharge pipe. The connector of the ash discharge pipe is a rotatable joint. The ash discharge pipe is connected to the bottom through hole of the air pressure pump (15). A valve is set at the through hole position. When ash cleaning is required, the valve is opened. When ash cleaning is not required, the valve is closed.

9. The waste gas dust removal and purification equipment for wooden furniture production and processing according to claim 4, characterized in that: The pulling assembly (31) includes a pulling rod (312) fixedly connected to the bottom of the sliding rod three (311). Among them, the end of the pull rod (312) away from the sliding rod three (311) is fixedly connected to the bottom of the sliding rod one (122).

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