Flue gas filtering device arranged in front of chimney

Abstract

The utility model discloses a smoke filtering device with a front chimney, and relates to the technical field of smoke filtering. The smoke inlet pipe is arranged on the side wall of the shell in a communicating mode, and a pair of first annular plates are arranged on the inner wall of the shell and located on the two sides of the smoke inlet pipe; the smoke outlet pipe is arranged at the center position of the top of the shell in a penetrating mode, and a second annular plate is arranged at the bottom of the outer wall of the smoke outlet pipe; according to the utility model, the hydraulic cylinder drives the filter cartridge and the activated carbon layer to slowly move in the vertical direction, and the motor drives the filter cartridge and the activated carbon layer to slowly rotate, so that compressed air sprayed from the spray head in the moving process of the filter cartridge and the activated carbon layer is used for back-blowing and cleaning dust on the filter cartridge and the activated carbon layer; and the blown-down dust is recycled through the dust collection assembly, so that cleaning is achieved in the smoke filtering process.

Description

Technical Field

[0001] The utility model relates to the technical field of flue gas filtration, in particular to a chimney pre-mounted flue gas filtration device. Background Art

[0002] Chimneys, as key structures for emitting industrial flue gases, primarily function to discharge combustion flue gases into the atmosphere, diluting harmful pollutants through atmospheric diffusion and reducing ground-level pollutant concentrations. With increasingly stringent environmental protection requirements, the direct discharge of untreated flue gases can lead to environmental problems, posing serious risks to the ecological environment and human health. Therefore, installing flue gas purification devices at the front of chimneys is essential to ensure that flue gases meet environmental standards.

[0003] The existing flue gas filtration devices contain a large amount of dust, harmful gases, etc., and the filter elements are very easy to clog, affecting the purification efficiency. Currently, most flue gas filtration devices do not have an online cleaning function. When the filter elements are clogged, they need to be shut down for disassembly, cleaning or replacement, which not only reduces the equipment's operating efficiency and increases maintenance costs, but may also cause production interruptions due to downtime, resulting in economic losses. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a chimney pre-smoke filter device to solve the problem that most current smoke filter devices do not have an online cleaning function.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a chimney pre-smoke filter device, comprising:

[0006] shell;

[0007] a smoke inlet pipe, the smoke inlet pipe being communicatively arranged on the side wall of the shell, and a pair of first annular plates being arranged on the inner wall of the shell and on both sides of the smoke inlet pipe;

[0008] A smoke outlet pipe is provided through the center of the top of the housing, and a second annular plate is provided at the bottom of the outer wall of the smoke outlet pipe;

[0009] a plurality of air intake branch pipes, the plurality of air intake branch pipes penetrating and fixedly disposed on the top wall of the housing and the second annular plate; a third annular plate connected to the plurality of air intake branch pipes at positions corresponding to the first annular plate located below; and a plurality of nozzles disposed on the plurality of air intake branch pipes at upper sides of the second annular plate and lower sides of the third annular plate;

[0010] A filter cartridge is rotatably disposed between a pair of first annular plates, a second annular plate, and a third annular plate, an activated carbon layer being disposed on an inner side of the filter cartridge, and a drive assembly for driving the filter cartridge to rotate and move vertically is disposed on the bottom of the housing;

[0011] A dust collection component is provided on the side wall of the shell and is used for absorbing dust.

[0012] Preferably, the drive assembly includes:

[0013] A hydraulic cylinder is provided, which passes through and is fixedly arranged at the center of the bottom wall of the housing;

[0014] a motor, the motor being arranged on the telescopic end of the hydraulic cylinder;

[0015] The cylinder body is provided with a connecting rod on the inner side of the cylinder body, the output shaft of the motor is connected to the connecting rod, and the filter cartridge and the activated carbon layer are provided on the top of the filter cartridge.

[0016] Preferably, the dust collection component includes:

[0017] A plurality of air outlet branch pipes, wherein the plurality of air outlet branch pipes penetrate and are fixedly arranged on the side wall of the shell;

[0018] Multiple outlet main pipes, each of which is circular, and each of which is connected to multiple outlet branch pipes at the same level, and each of which is connected to an external negative pressure device;

[0019] A plurality of air suction hoods are arranged on a plurality of air outlet branch pipes, and positions of the plurality of air suction hoods correspond to positions of a plurality of nozzles.

[0020] Preferably, the tops of the plurality of intake branch pipes are connected to an intake main pipe, and the intake main pipe is connected to a compressed air supply device.

[0021] Preferably, a plurality of slag discharge pipes are provided at the bottom of the shell, and each of the slag discharge pipes is provided with a discharge valve.

[0022] The utility model provides a chimney pre-filter device, which has the following beneficial effects:

[0023] The utility model drives the filter cartridge and the activated carbon layer to move slowly in the vertical direction through a hydraulic cylinder, and drives the filter cartridge and the activated carbon layer to rotate slowly through a motor, so that the compressed air ejected from the nozzle during the movement of the filter cartridge and the activated carbon layer back-blows and cleans the dust on the filter cartridge and the activated carbon layer, and the dust blown down is recovered by the dust suction component, thereby achieving cleaning in the process of flue gas filtration. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural diagram of the present utility model.

[0025] In the figure: 1. outer shell; 2. smoke inlet pipe; 3. smoke outlet pipe; 4. first annular plate; 5. second annular plate; 6. third annular plate; 7. hydraulic cylinder; 8. motor housing; 9. motor; 10. connecting rod; 11. cylinder; 12. filter cartridge; 13. activated carbon layer; 14. air inlet branch pipe; 15. air inlet main pipe; 16. nozzle; 17. air outlet branch pipe; 18. suction hood; 19. slag discharge pipe; 20. discharge valve; 21. air outlet main pipe. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] See also Figure 1 The utility model provides a technical solution: a chimney pre-smoke filter device, characterized in that it includes:

[0028] The housing 1 has a plurality of supporting legs at the bottom thereof;

[0029] A smoke inlet pipe 2 is provided on the side wall of the housing 1 and can transport smoke into the housing 1 through the smoke inlet pipe 2. A pair of first annular plates 4 are provided on the inner wall of the housing 1 and on both sides of the smoke inlet pipe 2. The pair of first annular plates 4 are used to guide the smoke;

[0030] The smoke outlet pipe 3 is provided through the center of the top of the housing 1. The top of the smoke outlet pipe 3 is connected to the draft device so that the smoke can flow from bottom to top in the smoke outlet pipe 3. A second annular plate 5 is provided at the bottom of the outer wall of the smoke outlet pipe 3.

[0031] Multiple air intake branch pipes 14 are provided, and the multiple air intake branch pipes 14 are fixedly disposed on the top wall of the housing 1 and the second annular plate 5. The top wall of the housing 1 fixes the multiple air intake branch pipes 14, and the multiple air intake branch pipes 14 fix the second annular plate 5. The multiple air intake branch pipes 14 are connected to the third annular plate 6 at positions corresponding to the first annular plate 4 located below. Multiple nozzles 16 are provided on the multiple air intake branch pipes 14, and are located on the upper side of the second annular plate 5 and the lower side of the third annular plate 6.

[0032] The filter cartridge 12 is rotatably disposed between a pair of first annular plates 4, a second annular plate 5, and a third annular plate 6. The filter cartridge 12 is used to filter dust in the flue gas. An activated carbon layer 13 is disposed on the inner side of the filter cartridge 12. The activated carbon layer 13 is used to filter harmful gases in the flue gas. A drive assembly is disposed at the bottom of the housing 1 for driving the filter cartridge 12 to rotate and move vertically.

[0033] The dust collection component is arranged on the side wall of the shell 1. The dust collection component is used to absorb dust and to recover dust blown off from multiple nozzles.

[0034] As an embodiment of the present invention, the drive assembly includes:

[0035] A hydraulic cylinder 7 is provided through and fixedly disposed at the center of the bottom wall of the housing 1;

[0036] Motor 9, which is arranged on the telescopic end of the hydraulic cylinder 7;

[0037] The cylinder 11 has a connecting rod 10 disposed on the inner side thereof, the output shaft of the motor 9 is connected to the connecting rod 10 , and the filter cartridge 12 and the activated carbon layer 13 are disposed on the top of the filter cartridge 12 .

[0038] In this embodiment, the telescopic end of the hydraulic cylinder 7 is connected to the motor housing 8, and the motor 9 is arranged in the motor housing 8. The output shaft of the motor 9 passes through and extends to the outside of the top of the motor housing 8 and is connected to the connecting rod 10.

[0039] As an embodiment of the present invention, the dust collection assembly includes:

[0040] Multiple air outlet branch pipes 17, which pass through and are fixedly arranged on the side wall of the housing 1;

[0041] Multiple outlet main pipes 21, each of which is circular and connected to multiple outlet branch pipes 17 at the same level, and each of which is connected to an external negative pressure device;

[0042] A plurality of air suction hoods 18 are provided on the plurality of air outlet branch pipes 17 , and positions of the plurality of air suction hoods 18 correspond to positions of the plurality of nozzles 16 .

[0043] In this embodiment, when the external negative pressure device is started, negative pressure can be generated in multiple outlet main pipes 21 and outlet branch pipes 17, and then negative pressure is generated at the air suction hood 18. When the compressed air sprayed from the nozzle 16 back-blows the activated carbon layer 13 and the filter cartridge 12, the dust in the activated carbon layer 13 and the filter cartridge 12 enters the air suction hood 18, thereby realizing the recovery of dust.

[0044] As an embodiment of the present invention, the tops of the plurality of intake branch pipes 14 are connected to an intake main pipe 15 , and the intake main pipe 15 is connected to a compressed air supply device.

[0045] In this embodiment, the compressed air supply device delivers compressed air to the air intake main pipe 15, and then delivers it to multiple air intake branch pipes 14 through the air intake main pipe 15, so that the compressed air is ejected from multiple nozzles 16 to backflush and clean the filter cartridge 12 and the activated carbon layer 13.

[0046] As an embodiment of the present invention, a plurality of slag discharge pipes 19 are provided at the bottom of the housing 1 , and a discharge valve 20 is provided on each slag discharge pipe 19 .

[0047] In this embodiment, the dust at the bottom of the inner cavity of the shell 1 is discharged outward by opening the discharge valves 20 on the multiple slag discharge pipes 19 .

[0048] Through the use of wires by those skilled in the art, all electrical components in this case are connected to their corresponding power supplies, and appropriate controllers should be selected according to actual conditions to meet control requirements. The specific connection and control sequence should refer to the following working principle, in which the electrical components are electrically connected in sequence. The detailed connection means are well-known technologies in this field. The following mainly introduces the working principle and process, and no longer explains the electrical control.

[0049] The working principle and use process of the utility model are as follows: when in use, the draft device connected to the top of the smoke outlet pipe 3 is started, and the smoke is transported through the smoke inlet pipe 2 to the cavity composed of the side wall of the shell 1, a pair of first annular plates 4, a second annular plate 5 and a third annular plate 6. The smoke then flows out from the smoke outlet pipe 3 from bottom to top. During the flow of the smoke, the filter cartridge 12 filters the dust in the smoke, and the activated carbon layer 13 removes harmful gases in the smoke;

[0050] When the filter cartridge 12 and the activated carbon layer 13 need to be cleaned after being used for a period of time, the external negative pressure device is started, so that the multiple air outlet main pipes 21, the air outlet branch pipes 17 and the air suction hood 18 are in a negative pressure state, and compressed air is delivered to the air inlet main pipe 15 and the multiple air inlet branch pipes 14 through the compressed air supply device, and the compressed air is then sprayed out from the multiple nozzles 16, and the hydraulic cylinder 7 and the motor 9 arranged at the bottom of the outer shell 1 are started. The telescopic end of the hydraulic cylinder 7 drives the motor housing 8 to move in the vertical direction, and the motor housing 8 drives the motor 9 to move vertically. The motor 9 drives the connecting rod 10 to rotate, and the connecting rod 10 drives the cylinder 11 to rotate, and the cylinder 11 drives the filter cartridge 12 and the activated carbon layer 13 to rotate slowly. During the slow rotation of the filter cartridge 12 and the activated carbon layer 13, the compressed air sprayed from the nozzle 16 back-blows the filter cartridge 12 and the activated carbon layer 13 to clean them, and the blown dust is discharged through the air suction hood 18, the air outlet branch pipe 17 and the air outlet main pipe 21.

[0051] The utility model drives the filter cartridge 12 and the activated carbon layer 13 to move slowly in the vertical direction through the hydraulic cylinder 7, and the motor 9 drives the filter cartridge 12 and the activated carbon layer 13 to rotate slowly, so that the compressed air ejected from the nozzle 16 during the movement of the filter cartridge 12 and the activated carbon layer 13 back-blows and cleans the dust on the filter cartridge 12 and the activated carbon layer 13, and the dust blown down is recovered by the dust collection component, thereby achieving cleaning during the process of flue gas filtration.

[0052] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A chimney pre-gas filter device, characterized in that: include: Housing (1); A smoke inlet pipe (2), the smoke inlet pipe (2) being arranged in communication with the side wall of the outer shell (1), and a pair of first annular plates (4) being arranged on the inner wall of the outer shell (1) and located on both sides of the smoke inlet pipe (2); A smoke outlet pipe (3), the smoke outlet pipe (3) is arranged through the center of the top of the housing (1), and a second annular plate (5) is provided at the bottom of the outer wall of the smoke outlet pipe (3); A plurality of air intake branch pipes (14), the plurality of air intake branch pipes (14) passing through and fixedly arranged on the top wall of the housing (1) and the second annular plate (5), the plurality of air intake branch pipes (14) being connected to a third annular plate (6) at positions corresponding to the first annular plate (4) located below, and a plurality of nozzles (16) being respectively arranged on the plurality of air intake branch pipes (14) and located on the upper side of the second annular plate (5) and the lower side of the third annular plate (6); A filter cartridge (12), the filter cartridge (12) being rotatably disposed between a pair of first annular plates (4), a second annular plate (5), and a third annular plate (6), an activated carbon layer (13) being disposed on the inner side of the filter cartridge (12), and a driving assembly for driving the filter cartridge (12) to rotate and move vertically being disposed at the bottom of the housing (1); A dust collection component is provided on the side wall of the housing (1) and is used for absorbing dust.

2. A chimney pre-gas filter device according to claim 1, characterized in that: The drive assembly includes: A hydraulic cylinder (7), the hydraulic cylinder (7) passing through and fixedly arranged at a central position of the bottom wall of the housing (1); a motor (9), wherein the motor (9) is arranged on the telescopic end of the hydraulic cylinder (7); A cylinder (11) is provided with a connecting rod (10) on the inner side of the cylinder (11), an output shaft of the motor (9) is connected to the connecting rod (10), and the filter cartridge (12) and the activated carbon layer (13) are provided on the top of the filter cartridge (12).

3. The chimney pre-gas filter device according to claim 1, characterized in that: The dust collection component comprises: A plurality of air outlet branch pipes (17), wherein the plurality of air outlet branch pipes (17) penetrate and are fixedly arranged on the side wall of the housing (1); Multiple outlet main pipes (21), each of the outlet main pipes (21) is circular, each of the outlet main pipes (21) is connected to multiple outlet branch pipes (17) at the same level, and each of the outlet main pipes (21) is connected to an external negative pressure device; A plurality of air suction hoods (18) are provided on a plurality of air outlet branch pipes (17), and positions of the plurality of air suction hoods (18) correspond to positions of the plurality of nozzles (16).

4. The chimney pre-gas filter device according to claim 1, characterized in that: The tops of the plurality of intake branch pipes (14) are connected to an intake main pipe (15), and the intake main pipe (15) is connected to a compressed air supply device.

5. The chimney pre-gas filter device according to claim 1, characterized in that: A plurality of slag discharge pipes (19) are provided at the bottom of the shell (1), and each slag discharge pipe (19) is provided with a discharge valve (20).

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