A particulate exhaust stack with a digitally adjustable top cover

Abstract

This invention relates to the field of flue gas dust removal, and more particularly to a particulate matter exhaust stack with a digitally adjustable top cover. A particulate matter exhaust stack with a digitally adjustable top cover includes an installation cylinder with a connecting portion and an installation portion. An electrostatic dust removal component is installed within the connecting portion, and an air guide cover is fixedly connected to the installation portion. A cone-shaped cylinder communicates with the connecting portion. A connecting pipe communicates with the cone-shaped cylinder, and several side exhaust pipes are connected to the connecting pipe. All side exhaust pipes penetrate the installation portion, and each side exhaust pipe contains an opening / closing component. An adjusting component is installed within the connecting pipe. A spray component is installed within the installation portion and connected to all the side exhaust pipes. The system works in conjunction with an anemometer, adjusting component, and opening / closing component to monitor wind direction and speed in real time. Under unfavorable weather conditions, it automatically switches to a side exhaust mode and opens the side exhaust pipes aligned with the wind direction, ensuring the flue gas jet direction follows the wind direction.

Description

Technical Field

[0001] This invention relates to the field of flue gas dust removal, and more particularly to a particulate exhaust stack with a digitally adjustable top cover. Background Technology

[0002] Traditional chimneys are fixed vertical emission outlets, and their diffusion effect is highly dependent on natural wind and atmospheric stability. Under unfavorable meteorological conditions and strong lateral winds, the flue gas does not rise high enough, causing pollutants to spread rapidly near the ground and seriously pollute the surrounding environment. Existing technologies lack the ability to intelligently adjust the emission direction and mode based on real-time meteorological data. There is an urgent need for a particulate matter exhaust stack with a digitally adjustable top cover to solve the above problems. Summary of the Invention

[0003] To overcome the shortcomings of traditional chimneys, which are fixed vertical emission outlets and whose diffusion effect is highly dependent on natural wind and atmospheric stability, and whose insufficient rise of flue gas under strong lateral winds leads to rapid diffusion of pollutants near the ground and serious pollution of the surrounding environment, this invention provides a particulate exhaust stack with a digitally adjustable top cover.

[0004] The technical solution is as follows: A particulate matter exhaust stack with a digitally adjustable top cover includes: an installation cylinder having a connecting part and an installation part, wherein an electrostatic dust removal component is installed in the connecting part, and an air guide cover is fixedly connected to the installation part, wherein the air guide cover has several air guide grooves; a cone cylinder being installed in the installation part and communicating with the connecting part; a connecting pipe communicating with the cone cylinder, wherein several side exhaust pipes are connected to the connecting pipe, all of the side exhaust pipes passing through the installation part, each of the side exhaust pipes having an opening and closing component, and an adjusting component being installed in the connecting pipe to adjust the communication between the connecting pipe and the designated side exhaust pipe; and a spraying component being installed in the installation part and connected to all the side exhaust pipes.

[0005] Preferably, the electrostatic dust removal assembly includes: an electrostatic adsorption ring disposed on the inner annular surface of the connecting portion; a plurality of discharge needles disposed within the connecting portion and located below the electrostatic adsorption ring; and a cleaning unit disposed within the connecting portion.

[0006] Preferably, the cleaning unit includes: a second electric rotating ring connected to the connecting part and located above the electrostatic adsorption ring, with a cleaning brush fixedly connected to the second electric rotating ring; a conical dust-blocking cylinder disposed inside the connecting part and located below the electrostatic adsorption ring; and several dust discharge pipes, all connected to the connecting part, with the upper openings of all the dust discharge pipes communicating with the gap between the conical dust-blocking cylinder and the connecting part; wherein the bristles of the cleaning brush correspond to and contact the inner ring surface of the electrostatic adsorption ring.

[0007] Preferably, the cleaning unit further includes a toggle rope fixed to the inner annular surface of the connecting part by a connecting block. The toggle rope corresponds to the electrostatic adsorption ring and is spaced apart from the electrostatic adsorption ring.

[0008] Preferably, the spray assembly includes: several arc-shaped intelligent spray frames, each connected to one of the side drain pipes, each arc-shaped intelligent spray frame having several nozzles respectively disposed on the upper part of the inner wall of the corresponding side drain pipe; several connecting valves, each connected to one of the arc-shaped intelligent spray frames, all the connecting valves being connected to a water supply ring; and a connecting pipe, penetrating the mounting part and communicating with the water supply ring; wherein, each side drain pipe is provided with a drainage groove, the lower part of the mounting part is connected to a drainage pipe, and the drainage pipe is fixedly connected to the connecting part through a connecting block.

[0009] Preferably, the spray assembly further includes several arc-shaped baffles respectively disposed on the upper part of the inner wall of several side drain pipes, and the arc-shaped baffles are inclined on the side facing the center of the connecting pipe.

[0010] Preferably, the adjustment assembly includes: an adjustment pipe rotatably connected to the connecting pipe, an adjustment column movably connected inside the adjustment pipe, and an upper exhaust pipe rotatably connected to and fixed to the air guide cover; an electric rotator mounted on the adjustment column; a first electric rotating ring mounted on the connecting pipe and connected to the adjustment pipe; and a control unit connected to the adjustment column. The control unit includes a guide plate fixed to the air guide cover, an electric push rod fixed to the guide plate, the telescopic end of the electric push rod fixed to the fixed part of the electric rotator, a protective cylinder fixed to the guide plate, and a wind direction and anemometer connected to the protective cylinder. The upper exhaust pipe has several exhaust slots, and the air guide cover has several guide slots corresponding to the exhaust slots.

[0011] Preferably, the regulating pipe is provided with an arc-shaped exhaust channel, and the lower side of the regulating column is provided with an arc-shaped concave surface, which is adapted to the arc-shaped exhaust channel.

[0012] Preferably, the opening and closing assembly includes an electric rotating shaft connected to the side drain pipe, a sealing disc fixedly connected to the electric rotating shaft, and a flow guide platform fixedly connected to the side drain pipe; wherein the sealing disc and the flow guide platform cooperate to work together.

[0013] Preferably, the system also includes a retaining ring fixedly connected to the air guide cover, the retaining ring being disposed above the air guide groove.

[0014] The beneficial effects of this invention are as follows: 1. By working in conjunction with the wind direction and speed meter, the adjustment component, and the opening and closing component, the wind direction and speed are monitored in real time. Under unfavorable weather conditions, the system automatically switches to the side emission mode and opens the side exhaust pipe that is consistent with the wind direction, so that the direction of the flue gas jet is in line with the wind direction. The system uses wind power to carry out secondary lifting and long-distance transportation, thereby avoiding the rapid diffusion of pollutants near the ground and serious pollution of the surrounding environment.

[0015] 2. Adjust the amount of water mist sprayed by the nozzles according to the monitoring data of the wind direction and anemometer, so as to reduce dust before the exhaust pipe on the side of the flue gas, reduce the particulate matter content in the flue gas, and avoid insufficient space for the pollutants to be diluted in the vertical direction due to the side emission of flue gas, resulting in a high concentration when reaching the ground and causing serious pollution to the surrounding area. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0018] Figure 3 This is an enlarged view of area A of the present invention;

[0019] Figure 4 This is an enlarged view of region B of the present invention;

[0020] Figure 5 This is a schematic diagram of the assembly of the adjusting column and the electric rotator of the present invention;

[0021] Figure 6 This is a three-dimensional structural diagram of the second electric rotating ring, cleaning brush, and actuating rope combination of the present invention.

[0022] Explanation of reference numerals in the attached drawings: 1-Installation cylinder, 101-Connecting part, 102-Installation part, 2-Air guide cover, 201-Air guide groove, 202-Flow guide groove, 3-Conical cylinder, 4-Connecting pipe, 501-Drainage groove, 5-Side drain pipe, 6-Adjusting pipe, 601-Arc-shaped exhaust channel, 7-Adjusting column, 701-Arc-shaped concave surface, 8-Electric rotator, 9-Electric push rod, 10-Flow guide plate, 11-Protective cylinder, 12-Wind direction and anemometer, 13-Upper drain pipe 1301-Exhaust duct, 14-Baffle ring, 15-First electric rotating ring, 16-Electric rotating shaft, 17-Sealing disc, 18-Guide platform, 19-Water supply ring, 1901-Connecting pipe, 20-Connecting valve, 21-Arc-shaped intelligent spray frame, 22-Arc-shaped baffle strip, 23-Drain pipe, 24-Electrostatic adsorption ring, 25-Discharge needle, 26-Conical ash-blocking cylinder, 27-Ash discharge pipe, 28-Second electric rotating ring, 29-Cleaning brush, 30-Actuating rope. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] This embodiment provides a particulate exhaust stack with a digitally adjustable top cover, according to... Figures 1-6 As shown, it includes:

[0025] The mounting cylinder 1 is provided with a connecting part 101 and a mounting part 102. An electrostatic dust removal component is provided inside the connecting part 101. An air guide cover 2 is fixedly connected to the upper side of the mounting part 102. A plurality of air guide grooves 201 are opened on the air guide cover 2.

[0026] The cone 3 is disposed within the mounting portion 102 and communicates with the connecting portion 101;

[0027] A connecting pipe 4 is connected to the conical cylinder 3. Three annular array side pipes 5 are connected to the connecting pipe 4. All side pipes 5 penetrate the mounting portion 102. Each side pipe 5 contains an opening / closing component. An adjusting component is provided inside the connecting pipe 4.

[0028] The spray assembly is disposed within the mounting portion 102 and connected to all of the side drain pipes 5.

[0029] The connecting pipe 4 is connected to the designated side exhaust pipe 5 by adjusting the component, and the corresponding side exhaust pipe 5 is opened by the opening and closing component. The spray component and the electrostatic dust removal component remove dust from the flue gas and reduce the particulate matter content in the flue gas.

[0030] The electrostatic dust removal assembly includes:

[0031] An electrostatic adsorption ring 24 is disposed on the inner annular surface of the connecting portion 101;

[0032] Several discharge needles 25 are provided, all disposed within the connecting portion 101 and located below the electrostatic adsorption ring 24; and

[0033] The cleaning unit is disposed within the connecting part 101.

[0034] The particulate matter in the flue gas is charged by the discharge needle 25, and the charged particulate matter is adsorbed by the electrostatic adsorption ring 24, thereby reducing the particulate matter content in the flue gas. The electrostatic adsorption ring 24 is cleaned by the cleaning unit to ensure the long-term adsorption effect of the electrostatic adsorption ring 24.

[0035] The cleaning unit includes:

[0036] The second electric rotating ring 28 is connected to the connecting part 101 and is located above the electrostatic adsorption ring 24. A cleaning brush 29 is fixedly attached to the second electric rotating ring 28.

[0037] A conical dust-blocking cylinder 26 is disposed within the connecting portion 101 and located below the electrostatic adsorption ring 24; and

[0038] Several ash discharge pipes 27 are provided, all of which are connected to the connecting part 101, and the upper opening of all the ash discharge pipes 27 is connected to the gap between the conical ash baffle cylinder 26 and the connecting part 101;

[0039] The bristles of the cleaning brush 29 correspond to and are in contact with the inner ring of the electrostatic adsorption ring 24.

[0040] The second electric rotating ring 28 drives the cleaning brush 29 to rotate and clean the electrostatic adsorption ring 24. The conical dust-blocking cylinder 26 collects and guides the cleaned particles, and the dust discharge pipe 27 collects the cleaned particles in a unified manner.

[0041] The cleaning unit also includes a toggle rope 30 fixed to the inner annular surface of the connecting part 101 by a connecting block. The toggle rope 30 corresponds to the electrostatic adsorption ring 24 and is spaced apart from the electrostatic adsorption ring 24.

[0042] The second electric rotating ring 28 drives the cleaning brush 29 to rotate. When it passes the actuating rope 30, the actuating rope 30 actuates the bristles of the cleaning brush 29 to perform self-cleaning, ensuring the cleaning effect of the cleaning brush 29 for continuous use.

[0043] The spray assembly includes:

[0044] A number of arc-shaped intelligent sprinkler frames 21 are provided, each connected to one of the side drain pipes 5. Each arc-shaped intelligent sprinkler frame 21 is provided with a number of nozzles respectively located on the upper part of the inner wall of the corresponding side drain pipe 5.

[0045] Several connecting valves 20 are provided, each connected to one of the aforementioned arc-shaped intelligent sprinkler frames 21, and all the connecting valves 20 are connected to a water supply ring 19; and

[0046] A connecting pipe 1901 passes through the mounting part 102 and is connected to the water supply ring 19;

[0047] Each of the side drain pipes 5 is provided with a drain groove 501, and the lower part of the mounting part 102 is connected to a drain pipe 23, which is fixedly connected to the connecting part 101 through a connecting block.

[0048] By controlling the opening of the corresponding connecting valve 20, the nozzles of the corresponding arc-shaped intelligent spray frame 21 spray water mist to remove dust from the flue gas.

[0049] The spray assembly also includes several arc-shaped baffles 22 respectively disposed on the upper part of the inner wall of several side drain pipes 5, and the arc-shaped baffles 22 are provided with an inclined surface on the side facing the center of the connecting pipe 4.

[0050] The inclined surface of the arc-shaped baffle 22 guides the flue gas while protecting the nozzles of the arc-shaped intelligent spray frame 21, preventing the nozzles of the arc-shaped intelligent spray frame 21 from directly contacting the flue gas and becoming blocked.

[0051] The adjustment component includes:

[0052] The regulating pipe 6 is rotatably connected to the connecting pipe 4. An regulating column 7 is movably connected inside the regulating pipe 6. An upper exhaust pipe 13, which is fixedly connected to the air guide cover 2, is connected to and rotatably connected to the regulating pipe 6.

[0053] An electric rotator 8 is mounted on the adjusting column 7;

[0054] A first electrically operated rotating ring 15 is disposed on the connecting pipe 4, and the first electrically operated rotating ring 15 is connected to the regulating pipe 6; and

[0055] The control unit is connected to the adjusting column 7. The control unit includes a guide plate 10 fixedly connected to the air guide cover 2, an electric push rod 9 fixedly connected to the guide plate 10, the telescopic end of the electric push rod 9 fixedly connected to the fixed part of the electric rotator 8, a protective cylinder 11 fixedly connected to the guide plate 10, and a wind direction and anemometer 12 connected to the protective cylinder 11.

[0056] The upper exhaust pipe 13 has several exhaust slots 1301, and the air guide cover 2 has several guide slots 202 that correspond one-to-one with the exhaust slots 1301.

[0057] During operation, the electric push rod 9 retracts, driving the electric rotator 8 and the adjusting column 7 to rise, causing the adjusting column 7 to disengage from the adjusting pipe 6. The flue gas inside the chimney is accelerated through the Venturi tube structure formed by the cone 3, the connecting pipe 4, and the upper exhaust pipe 13, and is discharged through the exhaust trough 1301 and the guide trough 202. The wind direction and wind speed are monitored in real time by the wind direction and wind speed meter 12. When the wind direction and wind speed are not conducive to exhaust through the upper exhaust pipe 13, the corresponding side exhaust pipe 5 is opened according to the wind direction.

[0058] An arc-shaped exhaust channel 601 is provided inside the regulating pipe 6, and an arc-shaped concave surface 701 is provided on the lower side of the regulating column 7. The arc-shaped concave surface 701 is adapted to the arc-shaped exhaust channel 601.

[0059] The arc-shaped concave surface 701 on the lower side of the regulating column 7 and the arc-shaped exhaust channel 601 form a complete arc channel, thereby reducing the resistance to flue gas emission.

[0060] The opening and closing assembly includes an electric rotating shaft 16 connected to the side drain pipe 5, a sealing disc 17 fixedly connected to the electric rotating shaft 16, and a flow guide platform 18 fixedly connected to the side drain pipe 5.

[0061] The sealing disk 17 works in conjunction with the flow guide 18.

[0062] By controlling the electric rotating shaft 16 to drive the sealing disc 17 to rotate, the sealing disc 17 and the guide plate 18 are combined into a guide plate to guide the flue gas obliquely upward.

[0063] It also includes a retaining ring 14 fixedly connected to the air guide cover 2, the retaining ring 14 being disposed above the air guide groove 202.

[0064] The baffle ring 14 diverts rainwater from the outside to prevent it from flowing into the diversion channel 202.

[0065] During installation, the connecting part 101 is installed to the top of the chimney. The connecting pipe 1901, drain pipe 23, and ash discharge pipe 27 extend to the ground. The connecting pipe 1901 is connected to external water supply equipment, the drain pipe 23 is connected to external sewage treatment equipment, and the ash discharge pipe 27 is connected to external dust collection equipment. During operation, the electric push rod 9 retracts, driving the electric rotator 8 and the adjusting column 7 to rise, causing the adjusting column 7 to disengage from the adjusting pipe 6. The flue gas inside the chimney is accelerated through the Venturi tube structure formed by the cone 3, connecting pipe 4, and upper discharge pipe 13, and is discharged through the exhaust chute 1301 and guide chute 202. Simultaneously, the wind guide duct 201 directs external wind force, elevating part of the airflow to lift the flue gas. This increases the vertical dilution space for the flue gas without increasing the power of the chimney's induced draft fan, reducing its impact on the surrounding area. Meanwhile, the wind direction and speed are monitored in real-time by the wind direction and speed meter 12. When the wind direction and speed are unfavorable for exhaust through the upper exhaust pipe 13, the corresponding side exhaust pipe 5 is opened according to the wind direction. The electric rotating shaft 16 drives the sealing disc 17 to rotate, causing the sealing disc 17 and the guide plate 18 to form a guide plate that obliquely directs the flue gas. The system guides the airflow upwards, aligning the flue gas emission direction with the wind direction. This utilizes wind power to increase the space for flue gas dilution while preventing adverse effects from wind force and direction that could pollute nearby areas. Simultaneously, the electric push rod 9 extends, resetting the adjusting column 7 and electric rotator 8. The electric rotator 8 then rotates the adjusting column 7, causing its lower arc-shaped concave surface 701 to form a complete arc-shaped channel with the arc-shaped exhaust channel 601. This reduces flue gas emission resistance and ensures flue gas discharge speed. Simultaneously, the corresponding connecting valve 20 is controlled... When activated, the water supply equipment connected to the external water supply pipe 1901 starts, and water is fed into the arc-shaped intelligent spray frame 21 through the water supply ring 19. The water mist sprayed by several nozzles on the arc-shaped intelligent spray frame 21 captures particulate matter in the flue gas. The amount of water mist sprayed by the nozzles is adjusted according to the monitoring data of the wind direction and anemometer 12, thereby reducing dust in front of the flue gas discharge side pipe 5, reducing the particulate matter content in the flue gas, and avoiding insufficient space for vertical dilution of pollutants due to the side emission of flue gas, resulting in a high concentration when reaching the ground and causing serious pollution to the surrounding area.

[0066] The wastewater collected after the spray mist captures particulate matter is discharged through the drainage trough 501 to the gap between the cone 3 and the installation part 102, and then discharged through the drainage pipe 23 to an external wastewater treatment device for unified treatment. Simultaneously, when the flue gas passes through the electrostatic precipitator, its activation can be selected as needed. This allows for simultaneous dust removal by both the electrostatic precipitator and the spray assembly, improving the dust removal effect and further reducing the particulate matter content in the flue gas. When dust removal by the electrostatic precipitator is required, the discharge needle 25 is activated, causing the particles in the flue gas to be dispersed as they pass through. When the object is charged, the electrostatic adsorption ring 24 is activated to adsorb the charged particles, thereby reducing the particulate matter content in the flue gas. When the chimney is not working, the second electric rotating ring 28 is activated to drive the cleaning brush 29 to rotate. The cleaning brush 29 cleans the electrostatic adsorption ring 24, thereby ensuring the adsorption effect of the electrostatic adsorption ring 24. The particles adsorbed on the electrostatic adsorption ring 24 fall into the gap between the conical ash baffle 26 and the connecting part 101. The dust collection equipment connected to the ash discharge pipe 27 is activated to collect the cleaned and fallen particles.

[0067] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A particulate matter exhaust stack with a digitally adjustable top cover, characterized in that, include: The mounting cylinder (1) is provided with a connecting part (101) and a mounting part (102). An electrostatic dust removal component is provided in the connecting part (101), and an air guide cover (2) is fixedly connected to the mounting part (102). Several air guide grooves (201) are opened on the air guide cover (2). A cone (3) is disposed within the mounting portion (102) and communicates with the connecting portion (101); A connecting pipe (4) is connected to the cone (3). Several side pipes (5) are connected to the connecting pipe (4). All the side pipes (5) pass through the mounting part (102). Each side pipe (5) is provided with an opening and closing component. An adjustment component is provided in the connecting pipe (4). The connecting pipe (4) is adjusted to connect with the designated side pipe (5) by adjusting the component. and A spray assembly is disposed within the mounting portion (102) and connected to all of the side drain pipes (5); The adjustment component includes: The regulating pipe (6) is rotatably connected to the connecting pipe (4), and the regulating pipe (6) is movably connected to the regulating column (7). The regulating pipe (6) is connected to and rotatably connected to the upper drain pipe (13) which is fixed to the air guide cover (2). An electric rotator (8) is mounted on the adjusting column (7); A first electric rotating ring (15) is disposed on the connecting pipe (4), and the first electric rotating ring (15) is connected to the regulating pipe (6); and The control unit is connected to the regulating column (7). The control unit includes a guide plate (10) fixed to the air guide cover (2), an electric push rod (9) fixed to the guide plate (10), the telescopic end of the electric push rod (9) fixed to the fixed part of the electric rotator (8), a protective cylinder (11) fixed to the guide plate (10), and a wind direction and anemometer (12) connected to the protective cylinder (11). The upper exhaust pipe (13) has several exhaust slots (1301), and the air guide cover (2) has several guide slots (202) that correspond one-to-one with the exhaust slots (1301).

2. A particulate matter exhaust stack with a digitally adjustable top cover according to claim 1, characterized in that, The electrostatic dust removal assembly includes: An electrostatic adsorption ring (24) is disposed on the inner annular surface of the connecting part (101); Several discharge needles (25) are provided, all disposed within the connecting portion (101) and all located below the electrostatic adsorption ring (24); and The cleaning unit is disposed within the connecting part (101).

3. A particulate matter exhaust stack with a digitally adjustable top cover according to claim 2, characterized in that, The cleaning unit includes: The second electric rotating ring (28) is connected to the connecting part (101) and located above the electrostatic adsorption ring (24). A cleaning brush (29) is fixedly attached to the second electric rotating ring (28). A conical dust-blocking cylinder (26) is disposed within the connecting portion (101) and located below the electrostatic adsorption ring (24); and Several ash discharge pipes (27) are provided, all of which are connected to the connecting part (101), and the upper opening of all the ash discharge pipes (27) is connected to the gap between the conical ash baffle cylinder (26) and the connecting part (101); The bristles of the cleaning brush (29) correspond to and are in contact with the inner ring of the electrostatic adsorption ring (24).

4. A particulate matter exhaust stack with a digitally adjustable top cover according to claim 3, characterized in that, The cleaning unit also includes a toggle rope (30) fixed to the inner annular surface of the connecting part (101) by a connecting block. The toggle rope (30) corresponds to the electrostatic adsorption ring (24) and is spaced apart from the electrostatic adsorption ring (24).

5. A particulate matter exhaust stack with a digitally adjustable top cover according to claim 1, characterized in that, The spray assembly includes: A number of arc-shaped intelligent sprinkler racks (21) are provided, each connected to one of the side drain pipes (5). Each arc-shaped intelligent sprinkler rack (21) is provided with a number of nozzles respectively located on the upper part of the inner wall of the corresponding side drain pipe (5). Several connecting valves (20) are provided, each connected to one of the aforementioned arc-shaped intelligent sprinkler frames (21), and all the connecting valves (20) are connected to a water supply ring (19); and A connecting pipe (1901) passes through the mounting part (102) and is connected to the water supply ring (19); Each of the side drain pipes (5) is provided with a drain groove (501), and the lower part of the mounting part (102) is connected to a drain pipe (23), which is fixedly connected to the connecting part (101) through a connecting block.

6. A particulate matter exhaust stack with a digitally adjustable top cover according to claim 5, characterized in that, The spray assembly also includes several arc-shaped baffles (22) respectively disposed on the upper part of the inner wall of several side drain pipes (5), and the arc-shaped baffles (22) are inclined on the side facing the center of the connecting pipe (4).

7. A particulate matter exhaust stack with a digitally adjustable top cover according to claim 1, characterized in that, An arc-shaped exhaust channel (601) is provided inside the regulating pipe (6), and an arc-shaped concave surface (701) is provided on the lower side of the regulating column (7). The arc-shaped concave surface (701) is adapted to the arc-shaped exhaust channel (601).

8. A particulate matter exhaust stack with a digitally adjustable top cover according to claim 1, characterized in that, The opening and closing assembly includes an electric rotating shaft (16) connected to the side drain pipe (5), a sealing disc (17) fixedly connected to the electric rotating shaft (16), and a flow guide (18) fixedly connected to the side drain pipe (5); wherein the sealing disc (17) and the flow guide (18) cooperate to work.

9. A particulate matter exhaust stack with a digitally adjustable top cover according to any one of claims 1-8, characterized in that, It also includes a retaining ring (14) fixedly connected to the air guide cover (2), the retaining ring (14) being disposed above the air guide groove (202).

Images