Flue gas treatment device and method thereof

Abstract

The application discloses a flue gas treatment device and a method thereof, and belongs to the technical field of industrial flue gas treatment. The device comprises an outer shell body, a filter cartridge is fixedly installed in the inner part of the outer shell body, the filter cartridge comprises a non-porous cylinder body and a connecting pipe, and the non-porous cylinder body and the connecting pipe are communicated; a pollutant removal mechanism is arranged in the inner part of the filter cartridge, first gas flow-through holes are left between every two first annular plates, second gas flow-through holes are left between every two second annular plates, the first gas flow-through holes and the second gas flow-through holes are staggered with each other, the pollutant removal mechanism is arranged to form a sealed plate body structure between a cleaning disc and a sealing disc, and the filter cartridge is separated into a filtering cavity and a removal cavity, pollutants in flue gas can continue to be filtered in the filtering cavity, pollutants in the interior can be removed in the removal cavity, full-automatic pollutant cleaning is realized, the normal filtering effect of original flue gas is not affected to a great extent, and the normal filtering of flue gas is ensured.

Description

Technical Field

[0001] The present application relates to the technical field of industrial flue gas treatment, and more specifically, to a flue gas treatment device and method thereof. Background Art

[0002] Pollutant pollution refers to environmental contamination caused by pollutants or their compounds. It is primarily caused by human factors, including mining, waste gas emissions, wastewater irrigation, and the use of products containing excessive levels of pollutants. For example, during nickel ore and steel smelting, some ore fines are transported into the atmosphere with the airflow. During the roasting process, nickel and its compounds are also discharged, primarily in the form of water-insoluble nickel sulfide (NiS), nickel oxide (NiO), and metallic nickel dust. These particles become particulate matter in the atmosphere, and their direct release into the atmosphere can cause severe atmospheric pollution.

[0003] The original flue gas can be filtered out of larger particles of pollutants in the flue gas through primary filtration. However, during the long period of primary filtration of the filter cartridge, a large amount of pollutants will accumulate inside the cartridge. If the pollutants are not cleaned in time, the gas flowability of the filter cartridge will be reduced, thereby reducing the flow effect of the flue gas, resulting in a large amount of flue gas unable to be discharged, causing backblowing of the flue gas. Therefore, in order to avoid the blockage of the filter cartridge causing a low flue gas flow rate, it is necessary to manually remove the pollutants in the cartridge on a regular basis; the manual cleaning method is to wait for the filter cartridge to cool down, and then manually remove the filter cartridge from the inside of the shell, remove the pollutants in the filter cartridge, and then reinstall it. Therefore, the traditional manual cleaning method requires the equipment to be shut down during the cleaning of the filter cartridge, and the entire cleaning and disassembly process wastes a lot of time. Since the flue gas is a continuous emission process, the frequency of cleaning the filter cartridge is also high, which increases the labor intensity of maintenance personnel and reduces industrial production efficiency.

[0004] In view of this, we propose a flue gas treatment device and method. Summary of the Invention

[0005] 1. Technical problems to be solved

[0006] The purpose of the present application is to provide a flue gas treatment device and method thereof, which solves the technical problem in the prior art that pollutants in the filter barrel cannot be removed during the continuous emission and filtration of flue gas.

[0007] 2. Technical solution

[0008] The embodiment of the present application provides a flue gas treatment device and method thereof, comprising an outer shell, wherein a filter cartridge is fixedly installed inside the outer shell, wherein the filter cartridge comprises a non-porous cylinder and a connecting pipe, wherein the non-porous cylinder and the connecting pipe are in communication;

[0009] A pollutant removal mechanism is provided inside the filter cartridge, and the pollutant removal mechanism includes a cleaning disc, a sealing disc, and a motor. The motor drives the cleaning disc to rotate and move along the axial direction of the filter cartridge. The cleaning disc includes a plurality of first annular plates and a plurality of brushes that are sequentially sleeved from the inside to the outside. The sealing disc includes a plurality of second annular plates that are sequentially sleeved from the inside to the outside.

[0010] A first gas circulation hole is left between every two of the first annular plates, and a second gas circulation hole is left between every two of the second annular plates. The first gas circulation holes and the second gas circulation holes are staggered with each other.

[0011] By adopting the above technical solution, a filter cartridge with an open top is fixedly installed inside the outer shell, and filtering holes are opened on the surface of the filter cartridge. When the original flue gas enters the interior of the filter cartridge, larger particles of pollutants are blocked inside the filter cartridge, and the non-porous cylinder is used to collect the pollutants, and then the pollutants in the non-porous cylinder are discharged through the connecting pipe. The cleaning disc can move up and down along the axial direction of the filter cartridge, and the motor drives the cleaning disc to rotate during the up and down movement to perform rotational cleaning on the inner wall of the filter cartridge. At the same time, when the lower surface of the cleaning disc and the upper surface of the sealing disc are in contact with each other, a sealed plate structure is formed between the cleaning disc and the sealing disc, and the filter cartridge is isolated into a filter chamber and a removal chamber. The filter chamber can continue to filter pollutants in the flue gas, and the removal chamber can realize the removal of internal pollutants. The connecting pipe is connected to the vacuum cleaner. When the cleaning disc and the sealing disc are disengaged, the connecting pipe is closed to prevent unfiltered flue gas from flowing out through the connecting pipe. The first gas flow hole and the second gas flow hole realize the circulation of flue gas and pollutants.

[0012] As an optional solution of the technical solution of this application document, the outer shell includes an air inlet pipe and an air outlet pipe;

[0013] The air inlet pipe is arranged at the top of the outer shell and is communicated with the filter cartridge, and the air outlet pipe is arranged at the bottom of the outer shell and is placed below the filter cartridge.

[0014] By adopting the above technical solution, the air inlet pipe is opened at the top of the outer shell and is connected to the open end of the filter cartridge. The original flue gas can be transported to the interior of the filter cartridge through the air inlet pipe, and the air outlet pipe is arranged below the outer shell and is also placed below the filter cartridge, so that some pollutants move to the bottom of the outer shell under the action of gravity and flue gas, which is conducive to the centralized cleaning of pollutants.

[0015] As an optional solution of the technical solution of this application document, the bottom of the non-porous cylinder is a conical structure, and the connecting pipe is fixedly installed on the bottom of the non-porous cylinder;

[0016] The filter cartridge further comprises a valve and a vacuum cleaner connecting pipe. One end of the connecting pipe away from the non-porous cylinder is fixedly connected to one end of the valve, and the other end of the valve is connected to the vacuum cleaner connecting pipe.

[0017] By adopting the above technical solution, the bottom of the non-porous cylinder is a conical structure, which is wide at the top and narrow at the bottom, and one end of the connecting pipe is fixedly installed on the bottom of the non-porous cylinder, which is conducive to the concentration of pollutants. One end of the valve is connected to the connecting pipe, and the other end is connected to the vacuum cleaner pipe. The valve is an electric valve and is electrically connected to the travel switch to realize the mechanized operation of the valve, thereby controlling the opening between the vacuum cleaner and the connecting pipe.

[0018] As an optional solution of the technical solution of this application document, a control box is installed on one side of the outer shell;

[0019] The control box includes a time delay switch and a travel switch;

[0020] The delay switch is electrically connected to the motor;

[0021] The travel switch is fixedly installed between the two second annular plates.

[0022] With the above technical solution, a control box is mounted outside the outer shell, and a timer switch is installed inside the control box. The timer switch is electrically connected to the motor. When the cleaning disc moves downward and contacts the sealing disc, the power supply of the timer switch and the cleaning disc form a very large resistance, generating a low-voltage current through the cleaning disc. Although the voltage is low, the current is not necessarily small. This current eventually flows to the ground, triggering a circuit effect. When the timer switch is triggered, a timer begins, activating the main circuit of the motor. The motor then reverses after a certain delay, driving the cleaning disc away from the sealing disc. The travel switch and the vacuum cleaner are connected in series. When the cleaning disc contacts the sealing disc, it presses the rocker arm, closing the travel switch and energizing the vacuum cleaner, forming a circuit. Simultaneously, the valve opens, and the vacuum cleaner starts to absorb pollutants within the non-porous cylinder. When the cleaning disc and sealing disc separate, the rocker arm rebounds, disconnecting the vacuum cleaner circuit and closing the valve. At this point, the interior of the filter cartridge can still filter pollutants from the flue gas, and no pollutants are discharged through the connecting pipe.

[0023] As an optional solution of the technical solution of this application document, the pollutant removal mechanism further includes a screw, a threaded hole, a screw rod and a plurality of connecting rods;

[0024] The threaded hole is opened at the center of the first annular plate, the threaded hole is adapted to the screw, and the motor is connected to the screw in a transmission manner;

[0025] A plurality of the first annular plates are fixedly mounted via connecting rods, and a plurality of the second annular plates are fixedly mounted via connecting rods;

[0026] The screw rod is fixedly installed on the sealing disc, and the screw rod passes through the first gas flow through hole.

[0027] By adopting the technical scheme, the output shaft of the motor and one end of the screw rod are fixedly installed, so that the motor drives the rotation of the screw rod, and the screw rod is screwed with the threaded hole in the center of the first annular plate, the lower end of the screw rod is fixedly installed on the sealing disc, and the upper end is fixedly installed on the inner wall of the top of the shell, the screw rod passes through the first gas flow through hole between the two connecting rods, a guide rail structure is formed on the screw rod, and a sliding groove structure is formed on the first gas flow through hole, so that when the screw rod rotates, the cleaning disc moves along the axis direction of the filter cartridge, the inside of the filter cartridge is cleaned at the same time, and the pollutants are caused to fall in the direction of the non-porous cylinder.

[0028] As an optional solution of the technical scheme of the application, the pollutant removal mechanism further comprises a scraper, the scraper is fixedly installed on the outer wall of the outermost first annular plate, and the outer wall of the scraper is attached to the inner wall of the filter cartridge.

[0029] By adopting the technical scheme, the outer wall of the outermost first annular plate is fixedly installed with the scraper, the brush is annularly arranged below the scraper, the brush is a steel wire structure, and the brush is attached to the inner wall of the filter cartridge, so that the inner wall of the filter cartridge is cleaned by the brush, and the pollutants are scraped off from the inner wall of the filter cartridge during the downward movement of the scraper.

[0030] As an optional solution of the technical scheme of the application, the motor comprises a stepping motor, the pollutant removal mechanism further comprises a support seat, the support seat is fixedly installed in the inside of the filter cartridge, and the support seat is rotatably connected with the screw rod.

[0031] By adopting the technical scheme, the support seat is fixedly installed at the bottom of the filter cartridge, and is rotatably connected with the screw rod through a bearing, so as to improve the stability of the screw rod during rotation.

[0032] By adopting the technical scheme, as an optional solution of the technical scheme of the application, the delay switch and the travel switch both comprise a swing rod, and the swing rod is arranged on one side close to the sealing disc.

[0033] The swing rod is installed between the two second annular plates, and the swing rod protrudes from the upper surface of the second annular plate, so that when the cleaning disc moves downward and contacts the sealing disc, the swing rod is pressed downward, the travel switch is closed, a pressure relief hole is further formed in the first annular plate, a pressure one-way valve is installed in the pressure relief hole, the dust collector is started when the cleaning disc and the sealing disc are sealed, the air pressure in the non-porous cylinder is balanced through the pressure relief hole, and the pollutants in the inside of the non-porous cylinder are conveniently adsorbed by the dust collector.

[0034] The present invention also provides a method for using the flue gas treatment device, comprising the following steps:

[0035] S1. Connect the air inlet pipe and the original flue gas delivery pipe through a flange, and deliver the original flue gas into the filter cartridge;

[0036] S2. The filter cartridge filters the larger particles of pollutants that are not fully burned in the original flue gas or the pollutants in the flue gas, and the larger particles of pollutants are blocked by the filter holes inside the filter cartridge;

[0037] S3. Under the action of air pressure, the original flue gas moves from the top to the bottom of the filter cartridge. The motor drives the screw to rotate. The screw passes through the first gas flow hole between the two connecting rods, forming a guide rail structure on the screw and a chute structure in the first gas flow hole. Therefore, when the screw rotates, the cleaning disc moves along the axis of the filter cartridge and simultaneously rotates and cleans the interior of the filter cartridge, causing pollutants to fall toward the non-porous cylinder.

[0038] S4. The first annular plate is placed directly above the second gas flow hole, and the second annular plate is placed directly below the first gas flow hole. When the cleaning disk moves and approaches the sealing disk, the travel switch is closed, and a cavity is formed between the cleaning disk, the sealing disk, and the non-porous cylinder.

[0039] S5. Connect the vacuum cleaner pipe to the vacuum cleaner, connect the vacuum cleaner to the travel switch in series, start the vacuum cleaner, and use the vacuum cleaner to suck out the pollutants in the cavity of the non-porous cylinder;

[0040] S6. When the screw drives the cleaning disc to move upward, the travel switch is disconnected and the vacuum cleaner is powered off;

[0041] S7. Repeat steps S3-S6 to clean the pollutants in the filter cartridge in a reciprocating manner without stopping the machine.

[0042] 3. Beneficial effects

[0043] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:

[0044] 1. The present application sets up a pollutant removal mechanism, forms a sealed plate structure between the cleaning disk and the sealing disk, and isolates the filter cartridge into a filter chamber and a removal chamber. The filter chamber can continue to filter pollutants in the flue gas, and the removal chamber can remove internal pollutants, thereby realizing fully automated pollutant cleaning, while reducing the impact on the normal filtering effect of the original flue gas and ensuring normal filtering of the flue gas.

[0045] 2. This application realizes the electrical coordination of the pollutant removal mechanism, the delay switch and the travel switch. When the travel switch is closed, the vacuum cleaner is automatically turned on and off. At the same time, when the delay switch is closed, the forward or reverse switching time of the motor can be set to ensure that the vacuum cleaner has enough time to fully suck out the pollutants in the removal chamber. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 This is a schematic diagram of the overall structure of a flue gas treatment device disclosed in a preferred embodiment of the present application;

[0047] Figure 2 This is a schematic diagram of the cross-sectional structure of the cleaning disk of the flue gas treatment device near the sealing disk disclosed in a preferred embodiment of the present application;

[0048] Figure 3 This is a schematic diagram of the cross-sectional structure of the cleaning disk of the flue gas treatment device disclosed in a preferred embodiment of the present application, away from the sealing disk;

[0049] Figure 4 A flue gas treatment device disclosed in a preferred embodiment of this application Figure 3 A in the middle is an enlarged structural diagram;

[0050] Figure 5 This is a schematic diagram of the explosion structure of a flue gas treatment device disclosed in a preferred embodiment of the present application;

[0051] Figure 6 A schematic diagram of the structure of a cleaning disk of a flue gas treatment device disclosed in a preferred embodiment of the present application;

[0052] Figure 7 This is a schematic diagram of the sealing disk and spiral rod structure of the flue gas treatment device disclosed in a preferred embodiment of the present application;

[0053] Figure 8 A flue gas treatment device disclosed in a preferred embodiment of this application Figure 7 The enlarged structural diagram at B in the middle;

[0054] Explanation of the numbers in the figure: 1. Outer shell; 101. Air inlet pipe; 102. Air outlet pipe; 2. Filter cartridge; 201. Non-porous cylinder; 202. Connecting pipe; 203. Valve; 204. Vacuum cleaner connecting pipe; 3. Control box; 301. Delay switch; 302. Travel switch; 303. Rocker arm; 4. Pollutant removal mechanism; 401. Cleaning disc; 402. Sealing disc; 403. First annular plate; 404. Connecting rod; 405. First gas circulation hole; 406. Threaded hole; 407. Brush; 408. Scraper; 409. Screw; 410. Motor; 411. Screw; 412. Second annular plate; 413. Second gas circulation hole; 414. Support seat; 415. Pressure relief hole. DETAILED DESCRIPTION

[0055] The following is a further detailed description of the present application in conjunction with the accompanying drawings. The flue gas treatment device includes an outer shell 1, a filter cartridge 2 is fixedly installed inside the outer shell 1, the filter cartridge 2 includes a non-porous cylinder 201 and a connecting pipe 202, the non-porous cylinder 201 and the connecting pipe 202 are connected, and a pollutant removal mechanism 4 is provided inside the filter cartridge 2, the pollutant removal mechanism 4 includes a cleaning disc 401 and a sealing disc 402 and a motor 410, the motor 410 drives the cleaning disc 401 to rotate and move along the axial direction of the filter cartridge 2, the cleaning disc 401 includes a plurality of first annular plates 403 and a plurality of brushes 407 that are sequentially arranged from the inside to the outside, the sealing disc 402 includes a plurality of second annular plates 412 that are sequentially arranged from the inside to the outside, a first gas flow hole 405 is left between each two first annular plates 403, a second gas flow hole 413 is left between each two second annular plates 412, and the first gas flow hole 405 and the second gas flow hole 413 are staggered with each other.

[0056] Reference Figure 1 and Figure 2 as well as Figure 3 , a filter cartridge 2 with an open top is fixedly installed inside the outer shell 1, and filter holes are opened on the surface of the filter cartridge 2. When the original smoke enters the interior of the filter cartridge 2, larger particles of pollutants are blocked inside the filter cartridge 2. The non-porous cylinder 201 is used to collect pollutants, and then the pollutants in the non-porous cylinder 201 are discharged through the connecting pipe 202. The cleaning disc 401 can move up and down along the axial direction of the filter cartridge 2, and the motor 410 drives the cleaning disc 401 to rotate during the up and down movement, and the inner wall of the filter cartridge 2 is cleaned in a rotational manner. At the same time, when the cleaning disc 401 is lowered, the cleaning disc 401 is rotated. When the surface and the upper surface of the sealing disk 402 are in contact, a sealed plate structure is formed between the cleaning disk 401 and the sealing disk 402, and the filter cartridge 2 is isolated into a filter chamber and a removal chamber. The filter chamber can continue to filter pollutants in the flue gas, and the removal chamber can remove internal pollutants. The connecting pipe 202 is connected to the vacuum cleaner. When the cleaning disk 401 and the sealing disk 402 are separated, the connecting pipe 202 is closed to prevent unfiltered flue gas from flowing out through the connecting pipe 202. The first gas circulation hole 405 and the second gas circulation hole 413 realize the circulation of flue gas and pollutants.

[0057] The outer shell 1 includes an air inlet pipe 101 and an air outlet pipe 102 . The air inlet pipe 101 is arranged at the top of the outer shell 1 and is connected to the filter cartridge 2 . The air outlet pipe 102 is arranged at the bottom of the outer shell 1 and is placed below the filter cartridge 2 .

[0058] Reference Figure 2The air inlet pipe 101 is opened at the top of the outer shell 1 and is connected to the open end of the filter cartridge 2. The original flue gas can be transported to the interior of the filter cartridge 2 through the air inlet pipe 101, and the air outlet pipe 102 is arranged below the outer shell 1 and is also placed below the filter cartridge 2, so that some pollutants move to the bottom of the outer shell 1 under the action of gravity and flue gas, which is conducive to the centralized cleaning of pollutants.

[0059] The bottom of the non-porous cylinder 201 is a conical structure, and the connecting pipe 202 is fixedly installed on the bottom of the non-porous cylinder 201. The filter cartridge 2 also includes a valve 203 and a vacuum cleaner connecting pipe 204. One end of the connecting pipe 202 away from the non-porous cylinder 201 is fixedly connected to one end of the valve 203, and the other end of the valve 203 is connected to the vacuum cleaner connecting pipe 204.

[0060] Reference Figure 2 and Figure 5 The bottom of the non-porous cylinder 201 is a conical structure, and is a structure that is wide at the top and narrow at the bottom. One end of the connecting pipe 202 is fixedly installed on the bottom of the non-porous cylinder 201, which is conducive to the concentration of pollutants. One end of the valve 203 is connected to the connecting pipe 202, and the other end is connected to the vacuum cleaner connecting pipe 204. The valve 203 is an electric valve and is electrically connected to the travel switch 302 to realize the mechanized operation of the valve 203, thereby controlling the opening between the vacuum cleaner and the connecting pipe 202.

[0061] A control box 3 is installed on one side of the outer shell 1 . The control box 3 includes a time delay switch 301 and a travel switch 302 . The time delay switch 301 is electrically connected to the motor 410 . The travel switch 302 is fixedly installed between the two second annular plates 412 .

[0062] Reference Figure 5 and Figure 8A control box 3 is installed on the outside of the outer shell 1, and a delay switch 301 is installed inside the control box 3. The delay switch 301 is electrically connected to the motor 410. After the cleaning disc 401 moves downward and contacts the sealing disc 402, the rocker arm 303 is squeezed when the cleaning disc 401 fits against the sealing disc 402, and the delay switch 301 is closed, triggering a loop effect. When the delay switch 301 is triggered, the timing starts, thereby connecting the main circuit of the motor 410, and sending an instruction to the motor 410 at this time to reverse after a certain time delay and then forward after a certain time delay, driving the cleaning disc 401 to move in the direction away from the sealing disc 402. The travel switch 302 and the vacuum cleaner are connected in series. When the cleaning disc 401 fits against the sealing disc 402, the rocker arm 303 is squeezed, the travel switch 302 is closed, and the vacuum cleaner forms an energized circuit. At the same time, the valve 203 is opened, and the vacuum cleaner starts to adsorb pollutants in the non-porous cylinder 201. When the cleaning disc 401 and the sealing disc 402 are separated, the rocker arm 303 rebounds, the travel switch 302 disconnects the vacuum cleaner circuit, and the valve 203 is closed. At this time, the inside of the filter cartridge 2 can still filter the pollutants in the flue gas, and they will not be discharged from the connecting pipe 202.

[0063] The pollutant removal mechanism 4 also includes a screw 409, a threaded hole 406, a screw rod 411 and several connecting rods 404. The threaded hole 406 is opened in the center of the first annular plate 403 in the center. The threaded hole 406 and the screw rod 409 are adapted. The motor 410 and the screw 409 are driven to connect the several first annular plates 403 and fixedly installed through the connecting rod 404. The several second annular plates 412 are fixedly installed through the connecting rod 404. The screw rod 411 is fixedly installed on the sealing disk 402, and the screw rod 411 passes through the first gas circulation hole 405.

[0064] Reference Figure 5 and Figure 6 as well as Figure 7 The output shaft of the motor 410 and one end of the screw 409 are fixedly installed, so that the rotation of the screw 409 is driven by the motor 410, and the screw 409 is threadedly connected to the threaded hole 406 opened in the center of the first annular plate 403 in the center. The lower end of the screw 411 is fixedly installed on the sealing disk 402, and the upper end is fixedly installed on the top inner wall of the outer shell 1. The screw 411 passes through the first gas circulation hole 405 between the two connecting rods 404, and a guide rail structure is formed on the screw 411. The first gas circulation hole 405 forms a slide structure. Therefore, when the screw 409 rotates, the cleaning disk 401 moves along the axial direction of the filter cartridge 2, and at the same time, the interior of the filter cartridge 2 is rotated and cleaned, and the pollutants are concentrated and fall in the direction of the non-porous cylinder 201.

[0065] The pollutant removal mechanism 4 further includes a scraper 408 , which is fixedly mounted on the outer wall of the outermost first annular plate 403 . The outer wall of the scraper 408 is in contact with the inner wall of the filter cartridge 2 .

[0066] Reference Figure 4 A scraper 408 is fixedly installed on the outer wall of the outermost first annular plate 403, and a brush 407 is arranged in a ring below the scraper 408. The brush 407 is a steel wire structure and can fit into the inner wall of the filter cartridge 2. The inner wall of the filter cartridge 2 can be cleaned by the brush 407. At the same time, the pollutants can be scraped off from the inner wall of the filter cartridge 2 during the downward movement of the scraper 408.

[0067] The motor 410 includes a stepping motor. The pollutant removal mechanism 4 also includes a support base 414 . The support base 414 is fixedly installed inside the filter cartridge 2 . The support base 414 is rotatably connected to the screw rod 409 .

[0068] Reference Figure 2 The support seat 414 is fixed to the bottom of the filter cartridge 2 and is rotatably connected to the screw 409 via a bearing to improve the stability of the screw 409 during rotation.

[0069] The travel switch 302 and the time delay switch 301 both include a rocker 303 , which is disposed on a side close to the sealing disk 402 .

[0070] Reference Figure 7 The rocker arm 303 is installed between the two second annular plates 412, and the rocker arm 303 protrudes from the upper surface of the second annular plate 412. Therefore, when the cleaning disc 401 moves downward and contacts the sealing disc 402, the rocker arm 303 is pressed downward, and the travel switch 302 and the delay switch 301 are closed.

[0071] It is worth noting that a pressure relief hole 415 is also provided on the first annular plate 403, and a pressure one-way valve is installed inside the pressure relief hole 415, which can automatically open when the air pressure inside the non-porous cylinder 201 drops to a certain level, so that the vacuum cleaner can further reduce the impact of the smoke filtering in the filter cavity when adsorbing pollutants inside the non-porous cylinder 201. When the cleaning disc 401 and the sealing disc 402 are sealed, the vacuum cleaner starts, and the air pressure inside the non-porous cylinder 201 is balanced through the pressure relief hole 415, so as to facilitate the vacuum cleaner to adsorb pollutants inside the non-porous cylinder 201.

[0072] The present invention also provides a method for using the flue gas treatment device, comprising the following steps:

[0073] S1. Connect the air inlet pipe 101 and the original flue gas delivery pipe through a flange, and deliver the original flue gas to the interior of the filter cartridge 2;

[0074] S2, the filter cartridge 2 filters the larger particles of pollutants that are not fully burned in the original flue gas or the pollutants in the flue gas, and the larger particles of pollutants are blocked by the filter holes inside the filter cartridge 2;

[0075] S3. Under the action of air pressure, the original flue gas moves from the top to the bottom of the filter cartridge 2. The motor 410 drives the screw 409 to rotate. The screw 411 passes through the first gas circulation hole 405 between the two connecting rods 404. A guide rail structure is formed on the screw 411, and a chute structure is formed on the first gas circulation hole 405. Therefore, when the screw 409 rotates, the cleaning disc 401 moves along the axis of the filter cartridge 2, and at the same time, the interior of the filter cartridge 2 is rotated and cleaned, and the pollutants are concentrated and fall toward the non-porous cylinder 201.

[0076] S4. The first annular plate 403 is placed directly above the second gas flow hole 413, and the second annular plate 412 is placed directly below the first gas flow hole 405. When the cleaning disk 401 moves and approaches the sealing disk 402, the limit switch 302 is closed. At this time, a cavity is formed between the cleaning disk 401, the sealing disk 402, and the non-porous cylinder 201.

[0077] S5. Connect the vacuum cleaner pipe 204 to the vacuum cleaner, connect the vacuum cleaner to the limit switch 302 in series, start the vacuum cleaner, and use the vacuum cleaner to suck out the pollutants in the cavity of the non-porous cylinder 201;

[0078] S6. When the screw 409 drives the cleaning disc 401 to move upward, the travel switch 302 is disconnected and the vacuum cleaner is powered off;

[0079] S7. Repeat steps S3-S6 to clean the pollutants in the filter cartridge 2 in a reciprocating manner without stopping the machine.

[0080] In summary, the pollutant removal mechanism 4 is provided to form a sealed plate structure between the cleaning disc 401 and the sealing disc 402, and the filter cartridge 2 is separated into a filter chamber and a removal chamber. The filter chamber can continue to filter pollutants in the flue gas, and the removal chamber can remove pollutants inside, thereby achieving fully automated pollutant cleaning without affecting the normal filtering effect of the original flue gas, thereby ensuring normal filtering of the flue gas.

[0081] Through the electrical coordination of the pollutant removal mechanism 4, the delay switch 301 and the limit switch 302, when the limit switch 302 is closed, the vacuum cleaner is automatically turned on and off. At the same time, when the delay switch 301 is energized, the forward or reverse switching time of the motor 410 can be set to ensure that the vacuum cleaner has enough time to fully suck out the pollutants in the removal chamber.

Claims

1. A flue gas treatment device, comprising an outer shell, characterized in that: Also includes A filter cartridge is fixedly mounted inside the outer shell, the filter cartridge comprising a non-porous cylinder and a connecting pipe, the non-porous cylinder and the connecting pipe being in communication, and is used to filter the smoke; A pollutant removal mechanism is arranged inside the filter cartridge, and the pollutant removal mechanism includes a cleaning disc, a sealing disc, and a motor. The motor can drive the cleaning disc to rotate and move along the axial direction of the filter cartridge. At the same time, when the lower surface of the cleaning disc and the upper surface of the sealing disc are in contact, a sealed plate structure is formed between the cleaning disc and the sealing disc, and the filter cartridge is separated into a filter chamber and a removal chamber. The filter chamber can continue to filter pollutants in the flue gas, and the removal chamber can remove pollutants inside. The cleaning disc includes a plurality of first annular plates and a plurality of brushes sequentially arranged from the inside to the outside, and the sealing disc includes a plurality of second annular plates sequentially arranged from the inside to the outside; A first gas circulation hole is left between every two of the first annular plates, and a second gas circulation hole is left between every two of the second annular plates, and the first gas circulation holes and the second gas circulation holes are staggered with each other; The outer shell includes an air inlet pipe and an air outlet pipe; The air inlet pipe is arranged at the top of the outer shell and is connected to the filter cartridge, and the air outlet pipe is arranged at the bottom of the outer shell and is placed below the filter cartridge; The bottom of the non-porous cylinder is a conical structure, and the connecting pipe is fixedly installed on the bottom of the non-porous cylinder; The filter cartridge further comprises a valve and a vacuum cleaner connecting pipe, wherein one end of the connecting pipe away from the non-porous cylinder is fixedly connected to one end of the valve, and the other end of the valve is connected to the vacuum cleaner connecting pipe; The pollutant removal mechanism also includes a screw, a threaded hole, a screw rod and a plurality of connecting rods; The threaded hole is opened at the center of the first annular plate, the threaded hole is adapted to the screw, and the motor is connected to the screw in a transmission manner; A plurality of the first annular plates are fixedly mounted via connecting rods, and a plurality of the second annular plates are fixedly mounted via connecting rods; The spiral rod is fixedly mounted on the sealing disk, and the spiral rod passes through the first gas circulation hole; A pressure relief hole is provided on the first annular plate, and a pressure one-way valve is installed inside the pressure relief hole.

2. The flue gas treatment device according to claim 1, characterized in that: A control box is installed on one side of the outer shell; The control box includes a time delay switch and a travel switch; The delay switch is electrically connected to the motor; The travel switch is fixedly installed between the two second annular plates.

3. The flue gas treatment device according to claim 1, characterized in that: The pollutant removal mechanism further includes a scraper, which is fixedly mounted on the outer wall of the outermost first annular plate, and the outer wall of the scraper is in contact with the inner wall of the filter cartridge.

4. The flue gas treatment device according to claim 1, characterized in that: The motor includes a stepping motor, and the pollutant removal mechanism also includes a support base, which is fixedly installed inside the filter cartridge and is rotatably connected to the screw.

5. The flue gas treatment device according to claim 2, characterized in that: The time delay switch and the travel switch both include a rocker rod, and the rocker rod is arranged on a side close to the sealing disk.

6. The method for using the flue gas treatment device according to any one of claims 1 to 5, characterized in that: The following steps are involved: S1. Connect the air inlet pipe and the original flue gas delivery pipe through a flange, and deliver the original flue gas to the inside of the filter cartridge; S2. The filter cartridge filters the larger particles of pollutants that are not fully burned in the original flue gas or the pollutants in the flue gas, and the larger particles of pollutants are blocked by the filter holes inside the filter cartridge; S3. Under the action of air pressure, the original flue gas moves from the top to the bottom of the filter cartridge. The motor drives the screw to rotate. The screw passes through the first gas flow hole between the two connecting rods, forming a guide rail structure on the screw and a chute structure in the first gas flow hole. Therefore, when the screw rotates, the cleaning disc moves along the axis of the filter cartridge and simultaneously rotates and cleans the interior of the filter cartridge, causing pollutants to fall toward the non-porous cylinder. S4. The first annular plate is placed directly above the second gas flow hole, and the second annular plate is placed directly below the first gas flow hole. When the cleaning disk moves and approaches the sealing disk, the travel switch is closed, and a cavity is formed between the cleaning disk, the sealing disk, and the non-porous cylinder. S5. Connect the vacuum cleaner pipe to the vacuum cleaner, connect the vacuum cleaner to the travel switch in series, start the vacuum cleaner, and use the vacuum cleaner to suck out the pollutants in the cavity of the non-porous cylinder; S6. When the screw drives the cleaning disc to move upward, the travel switch is disconnected and the vacuum cleaner is powered off; S7. Repeat steps S3-S6 to clean the pollutants in the filter cartridge in a reciprocating manner without stopping the machine.

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