Automatic cleaning type waste gas treatment equipment

Abstract

The invention relates to the technical field of waste gas treatment, in particular to automatic cleaning type waste gas treatment equipment. Comprising a waste gas spraying tower and a first drainage valve, the first drainage valve is arranged on the waste gas spraying tower, through holes are formed in the waste gas spraying tower at intervals, a recycling mechanism is installed on the side face of the waste gas spraying tower and used for recycling liquid in the waste gas spraying tower, and a first motor is installed at the top of the waste gas spraying tower; a hollow shaft is rotationally arranged on the inner side of the waste gas spraying tower. By integrating the automatic cleaning system, the problem that filler and the inner wall in a traditional waste gas spray tower are difficult to clean is solved, dirt on the surface of the filler and the inner wall of the tower body can be effectively removed through the combined design of the scraping plate, the stirring frame and the high-pressure spray head, manual cleaning is not needed, the working efficiency is remarkably improved, and the recovery efficiency is improved through the recovery mechanism. And the treated liquid can be filtered and reused in the spraying process, so that the waste of water resources is reduced, and the operation cost is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of waste gas treatment, and particularly to an automatically cleaned waste gas treatment device. Background Art

[0002] With the continuous advancement of the industrialization process, waste gas and dust pollution generated during industrial production have become one of the important challenges faced in the field of environmental protection. To effectively address this issue, waste gas spray towers, as key equipment for treating harmful waste gas and dust, are widely used. Through the packing layer and spray system inside the waste gas spray tower, toxic and harmful substances in the waste gas or dust can be effectively filtered out, thereby achieving the purpose of purification and ensuring that the gas discharged into the atmosphere meets environmental protection standards.

[0003] Although the waste gas spray tower has the above advantages, it also faces some technical challenges in practical applications. The most prominent problem is the inconvenience of internal cleaning. Due to long-term use, dirt inevitably adheres to the packing and inner wall inside the waste gas spray tower. The traditional cleaning methods mainly include two types: one is to manually remove the packing for cleaning, which is not only time-consuming and laborious but also has low efficiency; the other is to directly use high-pressure water flow to wash the inside. Although this method is relatively simple to operate, the cleaning effect is not ideal for the packing in areas that are difficult to reach at the bottom. In addition, for cleaning the inner wall of the tower body, especially those difficult-to-reach parts, this method also has limitations. Summary of the Invention

[0004] In view of this, the present invention provides an automatically cleaned waste gas treatment device, which can solve the problems that the packing and inner wall inside the existing waste gas spray tower are not only time-consuming and laborious, with low efficiency, but also have an unsatisfactory cleaning effect during cleaning.

[0005] The technical solution is as follows: An automatic cleaning waste gas treatment device, including a waste gas spray tower and a first drain valve. A first drain valve is arranged on the waste gas spray tower. Through holes are spacedly arranged inside the waste gas spray tower. A recovery mechanism is installed on the side of the waste gas spray tower, and the recovery mechanism is used to recover the liquid inside the waste gas spray tower. A first motor is installed on the top of the waste gas spray tower. A hollow shaft is rotatably arranged inside the waste gas spray tower, and the top end of the hollow shaft is connected to the output shaft of the first motor. A liquid infusion mechanism is also arranged on the waste gas spray tower, and the liquid infusion mechanism is used to input liquid into the inside of the hollow shaft. Spray pipes are spacedly connected to the hollow shaft, and the spray pipes are used to spray the liquid inside the hollow shaft to treat the waste gas inside the waste gas spray tower. Scrapers and stirring frames are also spacedly installed on the hollow shaft. The scrapers are used to scrape off the dirt adhered to the inner wall of the waste gas spray tower. Inner pipes are arranged inside both the scrapers and the stirring frames, and the inner pipes are all communicated with the inside of the hollow shaft. High-pressure nozzles are spacedly arranged on the outer surfaces of both the scrapers and the stirring frames, and the high-pressure nozzles are communicated with the inner pipes. A lifting mechanism is arranged inside the hollow shaft, and connecting rings are spacedly arranged on the lifting mechanism. The lifting mechanism is used to drive the connecting rings to move up and down.

[0006] As a further preferred solution, the recovery mechanism includes a filter, a water storage frame and a second drain valve. A filter is installed on the side of the waste gas spray tower, and the filter is used to filter the liquid collected at the bottom inside the waste gas spray tower. A water storage frame is also installed on the side of the waste gas spray tower, and the water storage frame is communicated with the filter. A second drain valve is arranged on the water storage frame.

[0007] As a further preferred solution, the liquid infusion mechanism includes a water inlet valve, a water pump, a hollow frame and a connecting pipe. A water inlet valve is arranged on the water storage frame, and a water pump is also arranged on the water storage frame. The water inlet pipe of the water pump is communicated with the water storage frame. A hollow frame is arranged inside the waste gas spray tower, and the hollow shaft rotates through the hollow frame, and the inside of the hollow shaft is communicated with the inside of the hollow frame. The water outlet pipe of the water pump is communicated with the hollow frame through the connecting pipe.

[0008] As a further preferred solution, the lifting mechanism includes a first electric push rod and a movable rod. A first electric push rod is installed inside the hollow shaft, and a movable rod is connected to the telescopic rod of the first electric push rod. The connecting rings are spacedly installed on the movable rod.

[0009] As a further preferred solution, it also includes a gear disk. Gear disks are spacedly rotatably installed inside the waste gas spray tower, and docking holes are spacedly arranged on the gear disks. The docking holes are the same size as the through holes.

[0010] As a further preferred solution, it also includes a mounting shell, a second motor and a full gear. Mounting shells are spacedly installed on the side of the waste gas spray tower. A second motor is installed on the mounting shell. A full gear is rotatably arranged inside the mounting shell. The full gear meshes with the gear disk, and the output shaft of the second motor is connected to the full gear.

[0011] As a further preferred solution, it further includes an amplification mechanism. The amplification mechanism includes a second electric push rod, a connecting frame and a limiting frame. The second electric push rod is installed on the side of the waste gas spray tower. A connecting frame is connected to the telescopic rod of the second electric push rod. A limiting frame is installed in the waste gas spray tower at intervals in a sliding manner. The top of the limiting frame is connected to the connecting frame. The limiting frame is used to limit the packing in the waste gas spray tower.

[0012] As a further preferred solution, it further includes a converging mechanism. The converging mechanism includes an air extraction pump, an annular airbag, a push plate and a trachea. An air extraction pump is installed on the water storage frame. The annular airbag is installed at intervals on the inner side of the waste gas spray tower. The annular airbag is located outside the limiting frame. Push plates are arranged at intervals on the inner side of the annular airbag. The air outlet of the air extraction pump is communicated with the annular airbag through a trachea.

[0013] The present invention has the following advantages: 1. By integrating an automatic cleaning system, the present invention solves the problem that it is difficult to clean the packing and the inner wall of the traditional waste gas spray tower. The combined design of the scraping plate, the stirring frame and the high-pressure nozzle can effectively remove the dirt on the surface of the packing and the inner wall of the tower body, without manual cleaning, significantly improving the work efficiency. Moreover, through the recycling mechanism, the treated liquid can be filtered and reused in the spraying process, reducing the waste of water resources and lowering the operation cost.

[0014] 2. Through the lifting mechanism, the present invention can adjust the liquid flow direction in the hollow shaft as needed, which can be used for spraying during normal waste gas treatment or switched to flushing in the cleaning mode. In addition, the design of the gear disk allows selective blocking of the through holes to achieve effective soaking and cleaning of the packing.

[0015] 3. The limiting frame set in the equipment of the present invention can concentrate the packing, increasing the surface area of contact between the waste gas and the solution, thereby improving the removal rate of harmful substances. At the same time, the amplification mechanism allows the packing to have a larger movement space during the cleaning process, further enhancing the cleaning effect. By using the annular airbag and push plate design in the converging mechanism, it can help the packing quickly reset after cleaning, avoiding the risk of unstable operation or reduced efficiency caused by uneven distribution of the packing. Description of the Drawings

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the present invention.

[0017] Figure 2 It is a separated structural diagram of the recycling mechanism of the present invention.

[0018] Figure 3 It is a three-dimensional structural schematic diagram of the liquid infusion mechanism of the present invention.

[0019] Figure 4 It is a three-dimensional structural schematic diagram of the spray pipe, scraping plate and stirring frame of the present invention.

[0020] Figure 5 For the present invention Figure 4 is a schematic three-dimensional structure diagram of removing the exhaust gas spray tower and the first drain valve in the present invention.

[0021] Figure 6 is a schematic three-dimensional structure diagram of the inner tube and the high-pressure nozzle in the present invention.

[0022] Figure 7 is a schematic three-dimensional structure diagram of the first electric push rod, the movable rod and the connecting ring in the present invention.

[0023] Figure 8 is a schematic three-dimensional structure diagram of the lifting mechanism in the present invention.

[0024] Figure 9 is a schematic three-dimensional structure diagram of the movable rod and the connecting ring in the present invention.

[0025] Figure 10 is a schematic three-dimensional structure diagram of the exhaust gas spray tower, the mounting shell and the second motor in the present invention.

[0026] Figure 11 is a schematic three-dimensional structure diagram of the through hole, the gear disk and the docking hole in the present invention.

[0027] Figure 12 is a schematic three-dimensional structure diagram of the mounting shell, the second motor and the full gear in the present invention.

[0028] Figure 13 is a schematic three-dimensional structure diagram of the exhaust gas spray tower, the second electric push rod and the connecting frame in the present invention.

[0029] Figure 14 is a schematic three-dimensional structure diagram of the connecting frame and the limiting frame in the present invention.

[0030] Figure 15 is a schematic three-dimensional structure diagram of the air extraction pump and the air pipe in the present invention.

[0031] Figure 16 is a schematic three-dimensional structure diagram of the limiting frame, the annular airbag and the air pipe in the present invention.

[0032] Figure 17 is a schematic three-dimensional structure diagram of the limiting frame, the annular airbag and the push plate in the present invention.

[0033] Wherein: 1-exhaust gas spray tower, 2-first drain valve, 3-through hole, 401-filter, 402-water storage frame, 403-second drain valve, 5-first motor, 6-hollow shaft, 701-inlet valve, 702-water pump, 703-hollow frame, 704-connecting pipe, 8-spray pipe, 9-scraper, 10-stirring frame, 11-inner pipe, 12-high-pressure nozzle, 1301-first electric push rod, 1302-movable rod, 14-connecting ring, 15-gear disc, 16-docking hole, 17-mounting shell, 18-second motor, 19-complete gear, 20-second electric push rod, 21-connecting frame, 22-limit frame, 23-air extraction pump, 24-annular airbag, 25-push plate, 26-air pipe. Detailed implementation manners

[0034] The present invention will be further described below in conjunction with specific embodiments. It should also be noted that, unless otherwise clearly specified and limited, terms such as: setting, installation, connection, and coupling should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0035] Embodiment: An automatically cleaned exhaust gas treatment device, see Figures 1-9 as shown, including an exhaust gas spray tower 1 and a first drain valve 2; the packing in the exhaust gas spray tower 1 is used to increase the surface area of contact between the exhaust gas and the solution, thereby improving the removal efficiency of harmful and toxic substances in the exhaust gas. The packing is spherical and its surface is an arc surface; a first drain valve 2 is arranged at the lower left side of the exhaust gas spray tower 1, and the first drain valve 2 is used to drain the liquid at the bottom of the exhaust gas spray tower 1; through holes 3 are spaced apart and provided in the upper, middle, and lower parts on the inner side of the exhaust gas spray tower 1, and the through holes 3 are used for the exhaust gas and liquid in the exhaust gas spray tower 1 to pass through; It also includes a recycling mechanism, a first motor 5, a hollow shaft 6, an infusion mechanism, a spray pipe 8, a scraper 9, a stirring frame 10, an inner pipe 11, a high-pressure nozzle 12, a lifting mechanism and a connecting ring 14; a recycling mechanism is installed on the lower right side of the waste gas spray tower 1, and the recycling mechanism is used to recycle the liquid in the waste gas spray tower 1; a first motor 5 is installed on the top of the waste gas spray tower 1; a hollow shaft 6 is rotatably arranged inside the waste gas spray tower 1, and the top end of the hollow shaft 6 is connected to the output shaft of the first motor 5, and the first motor 5 is used to drive the hollow shaft 6 to rotate; an infusion mechanism is also arranged on the waste gas spray tower 1, and the infusion mechanism is used to input liquid into the inner side of the hollow shaft 6; a group of spray pipes 8 are connected to the upper, middle and lower sides of the hollow shaft 6, and the number of a group of spray pipes 8 is four. The spray pipe 8 is used to spray the liquid inside the hollow shaft 6 to treat the waste gas in the waste gas spray tower 1; four groups of scrapers 9 are also installed at intervals on the hollow shaft 6, and the number of a group of scrapers 9 is two. The scraper 9 contacts the inner wall of the waste gas spray tower 1, and the scraper 9 is used to scrape off the dirt adhered to the inner wall of the waste gas spray tower 1; a group of stirring frames 10 are connected to the upper, middle and lower sides of the hollow shaft 6, and the number of a group of stirring frames 10 is three. The stirring frame 10 is used to stir the packing in the waste gas spray tower 1; inner pipes 11 are arranged inside the scrapers 9 and the stirring frames 10, and the inner pipes 11 are all communicated with the inner side of the hollow shaft 6; high-pressure nozzles 12 are arranged at intervals on the outer surfaces of the scrapers 9 and the stirring frames 10, and the high-pressure nozzles 12 are communicated with the inner pipes 11. The high-pressure nozzles 12 are used to spray the liquid inside the hollow shaft 6 to wash the inner wall and the packing of the waste gas spray tower 1; a lifting mechanism is arranged inside the hollow shaft 6, and connecting rings 14 are arranged at intervals on the lifting mechanism. By driving the connecting rings 14 to lift through the lifting mechanism, the connecting rings 14 can be used to block the liquid inside the hollow shaft 6 from entering the spray pipes 8 or the inner pipes 11, so as to adjust the liquid inflow position inside the hollow shaft 6.

[0036] See Figure 1 and Figure 2 As shown in, the recycling mechanism includes a filter 401, a water storage frame 402 and a second drain valve 403; a filter 401 is installed on the lower right side of the waste gas spray tower 1, and the filter 401 is used to filter the liquid collected at the bottom inside the waste gas spray tower 1; a water storage frame 402 is also installed on the lower right side of the waste gas spray tower 1, and the water storage frame 402 is communicated with the filter 401. The water storage frame 402 is used to collect the filtered liquid; a second drain valve 403 is arranged on the front lower side of the water storage frame 402, and the second drain valve 403 is used to drain the liquid in the water storage frame 402.

[0037] See Figure 2 and Figure 3As shown in the figure, the infusion mechanism includes a water inlet valve 701, a water pump 702, a hollow frame 703 and a connecting pipe 704; a water inlet valve 701 is arranged on the front side of the top of the water storage frame 402; a water pump 702 is arranged in the middle of the top of the water storage frame 402, and the water inlet pipe of the water pump 702 is communicated with the water storage frame 402; a hollow frame 703 is arranged on the inner top of the waste gas spray tower 1, the hollow shaft 6 rotates through the hollow frame 703, and the inner side of the hollow shaft 6 is communicated with the inner side of the hollow frame 703; the water outlet pipe of the water pump 702 is communicated with the hollow frame 703 through the connecting pipe 704.

[0038] See Figures 7-9 As shown in the figure, the lifting mechanism includes a first electric push rod 1301 and a movable rod 1302; a first electric push rod 1301 is installed on the lower inner side of the hollow shaft 6; a movable rod 1302 is connected to the telescopic rod of the first electric push rod 1301, and the connecting rings 14 are installed on the movable rod 1302 at intervals.

[0039] In the initial state, the position of the connecting ring 14 is at a position blocking the communication between the inner pipe 11 and the inner side of the hollow shaft 6, and the connecting ring 14 does not block the communication between the spray pipe 8 and the inner side of the hollow shaft 6; During use, first add the solution into the water storage frame 402 through the water inlet valve 701, and then use the water pump 702 to pump the solution in the water storage frame 402 into the hollow frame 703 through the connecting pipe 704, so that the solution flows into the inner side of the hollow shaft 6 through the hollow frame 703, and then the solution inside the hollow shaft 6 is sprayed onto the packing in the waste gas spray tower 1 through the spray pipe 8, so that the solution adheres to the surface of the packing. The solution that passes through the packing and the through holes 3 and falls to the bottom of the waste gas spray tower 1 will be filtered by the filter 401 and then returned to the water storage frame 402 for recycling. After that, the waste gas is input from below the waste gas spray tower 1, and the waste gas floats upward in the waste gas spray tower 1. When the waste gas passes through the packing in the waste gas spray tower 1, the solution attached to the surface of the packing will react with the harmful and toxic substances in the waste gas, thereby treating the harmful and toxic substances in the waste gas. The treated waste gas will be discharged from the upper part of the waste gas spray tower 1. In this way, the waste gas can be purified;After all the waste gas has been purified, and when it is necessary to clean the inner wall and packing of the waste gas spray tower 1, the solution at the bottom of the waste gas spray tower 1 is drained through the first drain valve 2, and then the solution in the water storage frame 402 is drained through the second drain valve 403. Subsequently, the cleaning liquid is added into the water storage frame 402 through the water inlet valve 701. Then, the first electric push rod 1301 is used to drive the movable rod 1302 and the connecting ring 14 to move downward, so that the position of the connecting ring 14 is at a position that blocks the communication between the spray pipe 8 and the inner side of the hollow shaft 6, and the connecting ring 14 does not block the communication between the inner pipe 11 and the inner side of the hollow shaft 6, thereby adjusting the inflow position of the liquid inside the hollow shaft 6. Then, the water pump 702 is used to pump the cleaning liquid in the water storage frame 402 into the hollow frame 703 through the connecting pipe 704, so that the cleaning liquid flows into the inner side of the hollow shaft 6 through the hollow frame 703, and thus the cleaning liquid inside the hollow shaft 6 flows into the inner pipe 11 and the high-pressure nozzle 12, and further the high-pressure nozzle 12 sprays the cleaning liquid on the inner wall and the surface of the packing of the waste gas spray tower 1, thereby flushing the inner wall and the surface of the packing of the waste gas spray tower 1. The cleaning liquid that passes through the packing and the through holes 3 and falls on the bottom of the waste gas spray tower 1 will be filtered by the filter 401 and then returned to the water storage frame 402 for recycling. At the same time, the first motor 5 is used to drive the hollow shaft 6, the scraper 9 and the stirring frame 10 to rotate, so that the scraper 9 scrapes off the dirt attached to the inner wall of the waste gas spray tower 1, and the cleaning liquid takes the scraped dirt along the through holes 3 into the bottom of the waste gas spray tower 1, while the stirring frame 10 stirs the packing inside the waste gas spray tower 1 to facilitate the overall flushing of the outer surface of the packing. In this way, the automatic cleaning of the inner wall and the surface of the packing of the waste gas spray tower 1 can be realized. After the inner wall and the surface of the packing of the waste gas spray tower 1 are cleaned, the cleaning liquid and dirt at the bottom of the waste gas spray tower 1 are drained together through the first drain valve 2, and at the same time, the cleaning liquid in the water storage frame 402 is drained through the second drain valve 403. Finally, the first electric push rod 1301 is used to drive the movable rod 1302 and the connecting ring 14 to move upward and reset, so that the position of the connecting ring 14 is again at a position that blocks the communication between the inner pipe 11 and the inner side of the hollow shaft 6, and the connecting ring 14 does not block the communication between the spray pipe 8 and the inner side of the hollow shaft 6, thereby restoring the inflow position of the liquid inside the hollow shaft 6.

[0040] See Figure 11 and Figure 12 As shown, it further includes a gear disk 15; three gear disks 15 are rotatably arranged at intervals inside the waste gas spray tower 1, and the three gear disks 15 are distributed in the upper, middle and lower positions; docking holes 16 are arranged at intervals on the gear disk 15, and the docking holes 16 are the same size as the through holes 3.

[0041] See Figures 10-12As shown in the figure, it further includes an installation shell 17, a second motor 18 and a full gear 19; three installation shells 17 are installed at intervals on the right side of the waste gas spray tower 1, and the three installation shells 17 are distributed in the upper, middle and lower positions; the second motor 18 is installed on the top of the installation shell 17, and the full gear 19 is rotatably arranged inside the installation shell 17. The full gear 19 meshes with the gear disc 15, and the output shaft of the second motor 18 is connected to the full gear 19.

[0042] In the initial state, the docking hole 16 on the gear disc 15 is aligned with the through hole 3, so that the gear disc 15 does not block the through hole 3; By setting the gear disc 15, the installation shell 17, the second motor 18 and the full gear 19, when the high-pressure nozzle 12 sprays the cleaning liquid on the inner wall of the waste gas spray tower 1 and the surface of the packing for flushing, the second motor 18 can be driven to drive the full gear 19 to rotate, so that the full gear 19 drives the gear disc 15 to rotate until the docking hole 16 on the gear disc 15 is not aligned with the through hole 3, so that the gear disc 15 blocks the through hole 3. In this way, the gear disc 15 can be used to block the cleaning liquid from falling through the through hole 3, so that the cleaning liquid gradually accumulates on the gear disc 15, so that the cleaning liquid submerges the packing. By submerging the packing with the cleaning liquid, it is convenient for the packing to be soaked, so as to ensure that all parts of the packing come into contact with the cleaning liquid. Especially for those packings with complex structures and large surface areas, the dirt attached to them can be more thoroughly removed. After an appropriate amount of cleaning liquid has accumulated on the gear disc 15, the second motor 18 is driven to reverse and reset the full gear 19, so that the full gear 19 drives the gear disc 15 to reverse and reset, so that the docking hole 16 on the gear disc 15 is aligned with the through hole 3 again, so that the gear disc 15 does not block the through hole 3, and then the accumulated cleaning liquid falls through the docking hole 16 and the through hole 3, avoiding excessive accumulation of cleaning liquid on the gear disc 15. After that, the above operation is repeated, and the packing can be repeatedly soaked and cleaned.

[0043] See Figure 13 and Figure 14 As shown in the figure, it further includes an amplification mechanism. The amplification mechanism includes a second electric push rod 20, a connecting frame 21 and a limiting frame 22; the second electric push rods 20 are installed at intervals on the upper part of the outside of the waste gas spray tower 1; a connecting frame 21 is connected between the telescopic rods of the second electric push rods 20; three limiting frames 22 are slidably installed at intervals inside the waste gas spray tower 1, and the three limiting frames 22 are distributed in the upper, middle and lower positions. The top of the limiting frame 22 is connected to the connecting frame 21, and the limiting frame 22 is used to limit the packing inside the waste gas spray tower 1.

[0044] See Figures 15-17As shown in the figure, it further includes a converging mechanism, which includes an air extraction pump 23, an annular airbag 24, a push plate 25 and an air pipe 26; an air extraction pump 23 is installed at the rear side of the top of the water storage frame 402; three annular airbags 24 are installed at intervals inside the waste gas spray tower 1, and the three annular airbags 24 are distributed in the upper, middle and lower positions. The annular airbag 24 is located outside the limit frame 22; push plates 25 are arranged at intervals inside the annular airbag 24; the air outlet of the air extraction pump 23 is communicated with the annular airbag 24 through the air pipe 26.

[0045] In the initial state, the limit frame 22 is used to limit the packing in the waste gas spray tower 1, so as to concentrate the packing, thereby increasing the surface area of contact between the waste gas and the solution, and further improving the removal efficiency of harmful and toxic substances in the waste gas. By setting the amplification mechanism and the converging mechanism, when it is necessary to wash the packing in the waste gas spray tower 1, the second electric push rod 20 can be used to drive the connecting frame 21 and the limit frame 22 to move upward, so that the limit frame 22 releases the limit on the packing, so that the packing in the waste gas spray tower 1 has a larger activity space. After that, when the packing is cleaned, the larger activity space can facilitate the agitation of the packing and the cleaning of the surface of the packing; after the packing is cleaned, the air extraction pump 23 can be used to draw air into the annular airbag 24 through the air pipe 26, so that the annular airbag 24 gradually expands, so that the annular airbag 24 drives the push plate 25 to move toward the side close to the packing, so that the push plate 25 pushes the packing to converge, so that the packing is concentrated in the central area until the inner side surface of the push plate 25 is flush with the outer side surface of the limit frame 22, and then the second electric push rod 20 is used to drive the connecting frame 21 and the limit frame 22 to move downward to reset, so that the limit frame 22 surrounds the packing, so that the limit frame 22 limits the packing (if the bottom surface contacts the packing when the limit frame 22 moves downward, the arc surface of the packing surface is used, and the limit frame 22 will squeeze the packing to move so that the packing does not block the downward movement of the limit frame 22), and then the air extraction pump 23 is used to draw the air in the annular airbag 24 out through the air pipe 26, so that the annular airbag 24 gradually contracts, so that the annular airbag 24 drives the push plate 25 to move away from the packing to reset.

[0046] The above is only the preferred embodiment of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and retouches can be made, and these improvements and retouches should also be regarded as the protection scope of the present invention.

Claims

1. An automatic cleaning type waste gas treatment device, comprising a waste gas spray tower (1) and a first drain valve (2), wherein the waste gas spray tower (1) is provided with the first drain valve (2), and through holes (3) are provided at intervals in the waste gas spray tower (1), characterized in that: A recovery mechanism is installed on the side of the waste gas spray tower (1), and the recovery mechanism is used to recover the liquid in the waste gas spray tower (1). A first motor (5) is installed on the top of the waste gas spray tower (1). A hollow shaft (6) is rotatably arranged inside the waste gas spray tower (1), and the top of the hollow shaft (6) is connected to the output shaft of the first motor (5). The waste gas spray tower (1) is also provided with an infusion mechanism, and the infusion mechanism is used to input liquid into the inside of the hollow shaft (6). Spray pipes (8) are connected to the hollow shaft (6) at intervals, and the spray pipes (8) are used to spray out the liquid inside the hollow shaft (6) to treat the waste gas in the waste gas spray tower (1). The hollow shaft (6) is provided with a scraper (9) and a stirring frame (10) at intervals. The scraper (9) is used to scrape off dirt adhered to the inner wall of the exhaust gas spray tower (1). The scraper (9) and the stirring frame (10) are provided with inner tubes (11) on the inner sides. The inner tubes (11) are communicated with the inner side of the hollow shaft (6). The scraper (9) and the stirring frame (10) are provided with high-pressure nozzles (12) at intervals on the outer sides. The high-pressure nozzles (12) are communicated with the inner tube (11). A lifting mechanism is provided on the inner side of the hollow shaft (6). Connecting rings (14) are provided on the lifting mechanism at intervals. The lifting mechanism is used to drive the connecting ring (14) to lift and lower.

2. An automatic cleaning exhaust gas treatment device as claimed in claim 1, characterized in that: The recovery mechanism comprises a filter (401), a water storage frame (402) and a second drain valve (403). The filter (401) is installed on the side of the waste gas spray tower (1). The filter (401) is used to filter the liquid collected at the bottom of the waste gas spray tower (1). The water storage frame (402) is also installed on the side of the waste gas spray tower (1). The water storage frame (402) is connected to the filter (401). The second drain valve (403) is arranged on the water storage frame (402).

3. An automatic cleaning exhaust gas treatment device as claimed in claim 2, characterized in that: The infusion mechanism comprises a water inlet valve (701), a water pump (702), a hollow frame (703) and a connecting pipe (704); the water storage frame (402) is provided with a water inlet valve (701); the water storage frame (402) is also provided with a water pump (702); the water inlet pipe of the water pump (702) is connected to the water storage frame (402); the inner side of the waste gas spray tower (1) is provided with a hollow frame (703); the hollow shaft (6) rotates and penetrates the hollow frame (703); the inner side of the hollow shaft (6) is connected to the inner side of the hollow frame (703); the water outlet pipe of the water pump (702) is connected to the hollow frame (703) via the connecting pipe (704).

4. An automatic cleaning exhaust gas treatment device as claimed in claim 3, characterized in that: The lifting mechanism comprises a first electric push rod (1301) and a movable rod (1302); the first electric push rod (1301) is installed inside the hollow shaft (6); the movable rod (1302) is connected to the telescopic rod of the first electric push rod (1301); and the connecting ring (14) is installed on the movable rod (1302) at intervals.

5. An automatic cleaning exhaust gas treatment device as claimed in claim 4, characterized in that: It also includes a gear plate (15), which is rotatably mounted at intervals on the inside of the exhaust gas spray tower (1), and docking holes (16) are arranged at intervals on the gear plate (15), and the docking holes (16) are of the same size as the through holes (3).

6. An automatic cleaning exhaust gas treatment device as claimed in claim 5, characterized in that: It also includes a mounting shell (17), a second motor (18) and a full gear (19); the mounting shell (17) is installed at intervals on the side of the exhaust gas spray tower (1); the second motor (18) is installed on the mounting shell (17); a full gear (19) is rotatably arranged in the mounting shell (17); the full gear (19) is meshed with the gear plate (15); and the output shaft of the second motor (18) is connected to the full gear (19).

7. An automatic cleaning exhaust gas treatment device as claimed in claim 6, characterized in that: The waste gas spray tower (1) also includes an amplification mechanism, which includes a second electric push rod (20), a connecting frame (21) and a limit frame (22). The second electric push rod (20) is installed on the side of the waste gas spray tower (1), and the connecting frame (21) is connected to the telescopic rod of the second electric push rod (20). The limit frame (22) is installed in the waste gas spray tower (1) in a sliding manner at intervals. The top of the limit frame (22) is connected to the connecting frame (21). The limit frame (22) is used to limit the filler in the waste gas spray tower (1).

8. An automatic cleaning exhaust gas treatment device as claimed in claim 7, characterized in that: The waste gas spray tower (1) further comprises a converging mechanism, which comprises an air pump (23), an annular air bag (24), a push plate (25) and an air pipe (26). The air pump (23) is mounted on the water storage frame (402). An annular air bag (24) is installed at intervals inside the waste gas spray tower (1). The annular air bag (24) is located outside the limiting frame (22). A push plate (25) is arranged at intervals inside the annular air bag (24). The air outlet of the air pump (23) is connected to the annular air bag (24) through the air pipe (26).

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