Environment-friendly plant waste gas purification device

Abstract

The invention belongs to the technical field of dust removal, and particularly relates to an environment-friendly plant waste gas purification device which comprises a first tower body, a gas inlet is fixedly connected to one side of the first tower body, a spraying assembly is arranged at the upper end of the interior of the first tower body, and the spraying assembly comprises a coiled pipe fixedly connected to the upper end of the interior of the first tower body; a plurality of nozzles are fixedly connected to the lower end of the coiled pipe, a second tower body is arranged at the lower end of the first tower body, the first tower body and the second tower body are fixedly connected through a U-shaped block, an exhaust port is fixedly connected to the upper end of the first tower body, two groups of filler layers are arranged at the lower end of the spraying assembly, each filler layer comprises two filter plates, and filler is placed between the two filter plates. A first cylindrical rod is rotationally arranged in the middle of the first tower body, a spiral plate is fixedly connected to the upper end of the first cylindrical rod, the flow rate of waste gas is slowed down by driving the spiral plate, impact on filler can be reduced by slowing down the flow rate of the waste gas, and the problem that the flow rate of the waste gas is too high, and the waste gas treatment effect is affected is solved.

Description

Technical Field

[0001] The present invention belongs to the technical field of dust removal, and specifically relates to an environmentally friendly waste gas purification device for factory buildings. Background Art

[0002] In the production lines of many industrial production workshops, a large amount of dust and waste gas will be generated. These dust and waste gas are usually suspended in the air. If the dust concentration is too high, it will seriously affect the working environment and pose a hazard to the health of the staff. Moreover, if the dust is not treated and directly discharged into the atmosphere, it will cause pollution to the external atmospheric environment.

[0003] A patent application with the publication number CN110075655B discloses an environmentally friendly industrial dust purification device. Through the multi-level dust removal effects of a cyclone separation mechanism, a bag dust removal mechanism, and a filter box, the purification degree of the air is improved, making the air cleaner. At the same time, the design of the vibration mechanism prevents dust from accumulating on the swing plate, making the entire device easier to clean. The design of the stirring mechanism and the water pump enables the water and dust to be mixed, solving the problem that dust re-enters the air during the dust collection process, causing secondary pollution. Moreover, the structure of the present invention is simple, the transmission is stable, and it is easy to promote.

[0004] In the above-mentioned prior art, when purifying waste gas, the discharge speed of the waste gas cannot be controlled. When the waste gas discharge speed is too fast, it cannot fully contact with the filter component. The filter component can be activated carbon or sprayed water, etc. The filter component may not be able to completely adsorb the harmful substances in the waste gas in a short time, resulting in the treated waste gas still containing a certain concentration of harmful substances. This not only affects the waste gas treatment effect but also may cause secondary pollution to the environment. Therefore, the present invention provides an environmentally friendly waste gas purification device for factory buildings. Summary of the Invention

[0005] In order to make up for the deficiencies of the prior art and solve at least one of the technical problems proposed in the background art.

[0006] The technical solution adopted by the present invention to solve its technical problems is as follows: An environment-friendly plant waste gas purification device described in the present invention includes a first tower body. An air inlet is fixedly connected to one side of the first tower body. A spraying assembly is provided at the upper end inside the first tower body. The spraying assembly includes a serpentine pipe fixedly connected to the upper end inside the first tower body. A plurality of nozzles are fixedly connected to the lower end of the serpentine pipe. A second tower body is provided at the lower end of the first tower body. The first tower body and the second tower body are fixedly connected by a U-shaped block. An exhaust port is fixedly connected to the upper end of the first tower body. Two groups of packing layers are provided below the spraying assembly. The packing layer includes two filter plates, and packing is placed between the two filter plates. A first cylindrical rod is rotatably provided in the middle of the first tower body, and a spiral plate is fixedly connected to the upper end of the first cylindrical rod.

[0007] Preferably, a feed inlet is fixedly connected to one side of the upper end of the second tower body, and the feed inlet is communicated with the inside of the second tower body. A first rectangular plate is fixedly connected to the periphery of the lower end of the first cylindrical rod. A drain port is fixedly connected to one side of the lower end of the second tower body, and the drain port is communicated with the inside of the second tower body.

[0008] Preferably, a filter box is fixedly connected to the end of the drain port away from the second tower body. A first pipe is fixedly connected to the upper end of the filter box, and the first pipe is fixedly connected to the serpentine pipe through an L-shaped pipe.

[0009] Preferably, the filter plates are placed obliquely. First connecting pipes are respectively fixedly connected between the two filter plates on both sides of the first tower body. The first connecting pipes are communicated with the inside of the first tower body, and valves are installed inside the first connecting pipes.

[0010] Preferably, the two first connecting pipes on both sides are respectively located at the high and low positions of the filter plates. The first connecting pipe at the high position is fixedly connected to a first cylinder, and the first connecting pipe is communicated with the inside of the first cylinder. The first connecting pipe at the low position is fixedly connected to a second cylinder, and the first connecting pipe is communicated with the inside of the second cylinder. One side of the first pipe is fixedly connected to the second cylinder through a second pipe, and one side of the lower end of the second cylinder is connected to the filter box through a second connecting pipe.

[0011] Preferably, a reciprocating lead screw is provided in the middle of the second cylinder. A ring is provided on the outer side of the reciprocating lead screw. The middle of the ring is engaged with the reciprocating lead screw through a convex block. The ring is slidably provided in the second cylinder, and a plurality of through holes are provided in the middle of the ring.

[0012] Preferably, a gear ring is rotatably provided between the first tower body and the second tower body. A cross block is fixedly connected to the middle of the gear ring. The cross block is fixedly connected to the first cylindrical rod. Scrapers are respectively fixedly connected to the four corners of the lower end of the cross block. The gear ring is engaged with a gear. A connecting block is rotatably provided at the lower end of the gear, and the connecting block is fixedly connected to one side of the second tower body.

[0013] Preferably, the second cylinder is fixedly connected to the first cylinder through a second rectangular cylinder. The second rectangular cylinder is internally communicated with the second cylinder and the first cylinder respectively. The second rectangular cylinder is in an inclined state, and the connection part between the second rectangular cylinder and the second cylinder is at a high position. One side of the first cylinder is fixedly connected with a first rectangular cylinder, the first rectangular cylinder is in an inclined state, and the connection part between the first rectangular cylinder and the first cylinder is at a low position. One side of the second cylinder is fixedly connected with a third rectangular cylinder, and the connection part between the third rectangular cylinder and the second cylinder is at a high position.

[0014] Preferably, a first cylindrical block is fixedly connected to the upper end of the gear. The first cylindrical block rotates through the bottom end of the second cylinder and is rotatably arranged in the middle of the ring. A second cylindrical block is fixedly connected to the upper end of the first cylindrical block, and a rectangular block is fixedly connected to the upper end of the second cylindrical block. An irregular strip is slidably arranged in the middle of the reciprocating lead screw. A rectangular groove is opened at the lower end of the irregular strip. When the irregular strip slides downward, the rectangular block is inserted into the rectangular groove. A second rectangular plate is fixedly connected to the upper end of the irregular strip, and the lower ends on both sides of the second rectangular plate are fixedly connected to the upper end of the second cylinder through telescopic plates.

[0015] Preferably, a demister is installed at the upper end inside the first tower body.

[0016] The beneficial effects of the present invention are as follows: 1. For the environmental protection type plant waste gas purification device of the present invention, by driving the spiral plate, the waste gas flow rate is slowed down. Slowing down the waste gas flow rate can reduce the impact on the packing, thereby prolonging the service life of the packing. Excessively high gas flow rate may accelerate the wear of the packing, increasing the maintenance cost and frequency. At the same time, it can enable the waste gas to be fully contacted with the liquid, thereby improving the removal rate of waste gas treatment, solving the problem that the waste gas flow rate is too fast, causing the waste gas to not be fully contacted with the sprayed liquid, thus affecting the waste gas treatment effect and possibly causing secondary pollution to the environment.

[0017] 2. For an environment-friendly plant waste gas purification device described in the present invention, by placing the filter plate obliquely, opening the valve in the middle of the first connecting pipe at the lower position, discharging the packing inside the filter plate into the second cylinder, then starting the air pump to discharge the water filtered in the filter box from the first pipe into the second pipe, and then entering the second cylinder to clean the used packing in the second cylinder. Driving the circular ring to drive the packing to slide to the upper end of the second cylinder. At this time, the third rectangular cylinder is in the closed state until it slides to one side of the second rectangular cylinder. Then, the packing at the upper end of the circular ring slides along the hypotenuse of the second rectangular cylinder into the first cylinder. Then, the packing in the first cylinder slides through the first connecting pipe between the two filter plates, and the cleaned packing can be refilled between the filter plates. When it is necessary to replace the packing, drive the circular ring to drive the packing to slide upward until it slides to one side of the third rectangular cylinder. At this time, the third rectangular cylinder is in the open state. Then, the packing slides out along the third rectangular cylinder, and then new packing is put into the first rectangular cylinder, and then enters between the filter plates from the first connecting pipe at the higher position to replace the new packing. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] Figure 1 is a perspective view of the first embodiment of the present invention; Figure 2 is a schematic cross-sectional view of the first tower body; Figure 3 is a schematic cross-sectional view of the second tower body; Figure 4 is a schematic cross-sectional view of the first cylinder; Figure 5 is a schematic cross-sectional view of the second cylinder; Figure 6 is a schematic view of the position of the circular ring; Figure 7 is a schematic cross-sectional view of the reciprocating lead screw; In the figure: 1. First tower body; 11. Second tower body; 111. U-shaped block; 12. Air inlet; 13. Serpentine tube; 131. Sprinkler head; 14. Drain outlet; 141. Filter box; 142. First pipeline; 143. L-shaped tube; 144. Second pipeline; 15. First cylindrical rod; 151. Spiral plate; 152. First rectangular plate; 153. Cross block; 1531. Scraper; 154. Gear ring; 155. Gear; 1551. Connecting block; 1552. First cylindrical block; 1553. Second cylindrical block; 1554. Rectangular block; 16. Exhaust port; 17. Feed inlet; 2. Filter plate; 21. First connecting pipe; 22. First cylinder; 221. First rectangular cylinder; 23. Second cylinder; 231. Ring; 232. Reciprocating lead screw; 233. Special-shaped strip; 2331. Rectangular groove; 234. Second rectangular plate; 235. Telescopic plate; 236. Second connecting pipe; 24. Second rectangular cylinder; 25. Third rectangular cylinder; 3. Demister. Detailed implementation mode

[0020] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with the specific implementation modes.

[0021] Embodiment 1: As Figure 1 - Figure 3 shown, an environment-friendly factory building waste gas purification device described in an embodiment of the present invention includes a first tower body 1, an air inlet 12 is fixedly connected to one side of the first tower body 1, a spraying assembly is arranged at the upper end inside the first tower body 1, the spraying assembly includes a serpentine tube 13 fixedly connected to the upper end inside the first tower body 1, a plurality of sprinkler heads 131 are fixedly connected to the lower end of the serpentine tube 13, a second tower body 11 is arranged at the lower end of the first tower body 1, the first tower body 1 and the second tower body 11 are fixedly connected through a U-shaped block 111, an exhaust port 16 is fixedly connected to the upper end of the first tower body 1, two groups of packing layers are arranged at the lower end of the spraying assembly, the packing layers include two filter plates 2, packing is placed between the two filter plates 2, and a first cylindrical rod 15 is rotatably arranged in the middle of the first tower body 1, and a spiral plate 151 is fixedly connected to the upper end of the first cylindrical rod 15.

[0022] Specifically, when using a spray tower to purify the waste gas generated by a factory, the waste gas is introduced into the spray tower, and then the waste gas is brought into countercurrent contact with the liquid sprayed from the top of the tower. The sprayed liquid contacts the impurities in the waste gas. After the treatment of the liquid, the pollutants in the waste gas are removed, and the purified gas is discharged from the top of the tower. In the prior art, the flow rate of the waste gas cannot be controlled during the purification of the waste gas. When the waste gas emission speed is too fast, it cannot be fully contacted with the sprayed liquid, so that the waste gas cannot be completely purified, which not only affects the waste gas treatment effect, but also may cause secondary pollution to the environment. When using this purification device, the waste gas is introduced into the first tower body 1 through the air collecting hood and the air inlet 12, and then the liquid is introduced into the serpentine pipe 13 through an external water pipe and then sprayed downward by the nozzle 131. The waste gas floats upward in the first tower body 1, and then the first cylindrical rod 15 is driven to rotate to drive the spiral plate 151 to rotate, forming a certain resistance to the waste gas and reducing the upward flow speed of the waste gas. Then the waste gas contacts the packing layer. The packing layer is generally plastic packing, and the packing usually has a porous structure, a wrinkled shape or other special shapes. These designs are all to increase the surface area per unit volume. When the waste gas passes through the spray tower, it can contact more sprayed liquid, thereby improving the removal efficiency of pollutants in the waste gas. Then the purified waste gas flows upward and is discharged from the exhaust port 16. By driving the spiral plate 151, the flow rate of the waste gas is slowed down. Slowing down the flow rate of the waste gas can reduce the impact on the packing, thereby extending the service life of the packing. Excessive gas flow rate may accelerate the wear of the packing, increasing the maintenance cost and frequency. At the same time, it can make the waste gas fully contact with the liquid, thereby improving the removal rate of waste gas treatment, solving the problem that the waste gas flow rate is too fast, so that the waste gas cannot be fully contacted with the sprayed liquid, thus affecting the waste gas treatment effect and may also cause secondary pollution to the environment.

[0023] As Figure 2 - Figure 3 shown, one side of the upper end of the second tower body 11 is fixedly connected with a feed port 17, the feed port 17 is communicated with the inside of the second tower body 11, the periphery of the lower end of the first cylindrical rod 15 is fixedly connected with a first rectangular plate 152, and one side of the lower end of the second tower body 11 is fixedly connected with a drain port 14, and the drain port 14 is communicated with the inside of the second tower body 11.

[0024] Specifically, the waste gas is introduced into the first tower body 1 and contacts the sprayed liquid. Subsequently, the wastewater after contacting the waste gas falls into the second tower body 11. Then, a flocculant is added into the second tower body 11 through the feed port 17. At the same time, the first cylindrical rod 15 drives the first rectangular plate 152 to rotate, stirring the wastewater with the added flocculant to make it fully mixed. The flocculant is usually a polymer with a linear structure and a large number of active groups. These groups can adsorb on the surface of colloidal particles, and at the same time, other parts of the polymer chain extend into the solution, connecting multiple particles like a bridge to form larger flocs. Subsequently, it is discharged through the drain port 14. The flocculant can promote the aggregation of tiny suspended particles in water to form larger flocs, which have better sedimentation performance, thus facilitating subsequent sedimentation and separation operations and significantly improving the sewage treatment efficiency.

[0025] As Figure 2 shown, a filter box 141 is fixedly connected to one end of the drain port 14 away from the second tower body 11. A first pipe 142 is fixedly connected to the upper end of the filter box 141, and the first pipe 142 is fixedly connected to the serpentine pipe 13 through an L-shaped pipe 143.

[0026] Specifically, the wastewater mixed with the flocculant is discharged into the filter box 141 through the drain port 14. Subsequently, after being filtered by the filter box 141, the wastewater is filtered. Then, the air pump is started to drive the filtered wastewater to be discharged into the L-shaped pipe 143 through the first pipe 142, and then re-discharged into the serpentine pipe 13, and then sprayed out by the nozzle 131, realizing the recycling of water resources.

[0027] As Figure 4 shown, the filter plate 2 is inclined. First connecting pipes 21 are respectively fixedly connected between the two sides of the first tower body 1 and between the two filter plates 2. The first connecting pipes 21 are communicated with the inside of the first tower body 1, and valves are installed inside the first connecting pipes 21.

[0028] Specifically, fillers are placed between the two filter plates 2. The inclined placement of the filter plate 2 can increase the contact area between the fillers and the waste gas. The service life of the fillers is limited, and the fillers need to be cleaned and replaced regularly. By opening the valve in the middle of the first connecting pipe 21 at the lower position, the fillers inside the filter plate 2 are discharged. Then, the valve in the first connecting pipe 21 at the higher position is opened, and then new fillers are added into the first connecting pipe 21 at the higher position, and the fillers enter between the two filter plates 2 along the inclined plane of the filter plate 2, and the fillers can be replaced.

[0029] As Figure 4 - Figure 5As shown in the figure, the first connecting pipes 21 on both sides are respectively located at the high and low positions of the filter plate 2. The first connecting pipe 21 at the high position is fixedly connected with a first cylinder 22, and the first connecting pipe 21 is internally communicated with the first cylinder 22. The first connecting pipe 21 at the low position is fixedly connected with a second cylinder 23, and the first connecting pipe 21 is internally communicated with the second cylinder 23. One side of the first pipe 142 is fixedly connected with the second cylinder 23 through a second pipe 144, and one side of the lower end of the second cylinder 23 is connected with the filter box 141 through a second connecting pipe 236.

[0030] Specifically, after the used packing between the two filter plates 2 is discharged, it enters the second cylinder 23 through the first connecting pipe 21. Then, by starting the air pump, the water filtered out in the filter box 141 is discharged into the second pipe 144 through the first pipe 142, and then enters the second cylinder 23 to wash the used packing in the second cylinder 23. After the washing is completed, the water is discharged into the filter box 141 through the second connecting pipe 236 for filtration, and the used packing can be washed.

[0031] As Figure 5 shown in the figure, a reciprocating lead screw 232 is arranged in the middle of the second cylinder 23. A ring 231 is arranged outside the reciprocating lead screw 232. The middle of the ring 231 is meshed with the reciprocating lead screw 232 through a convex block. The ring 231 is slidably arranged in the second cylinder 23, and a plurality of through holes are arranged in the middle of the ring 231.

[0032] Specifically, the washed packing can be reused. By driving the reciprocating lead screw 232 to rotate, the ring 231 is driven to slide upward in the second cylinder 23. While moving upward, the moisture on the surface of the packing drips from the plurality of through holes arranged in the middle of the ring 231. Then, the packing can be taken out and reused.

[0033] As Figure 3 shown in the figure, a gear ring 154 is rotatably arranged between the first tower body 1 and the second tower body 11. A cross block 153 is fixedly connected in the middle of the gear ring 154. The cross block 153 is fixedly connected with the first cylindrical rod 15. Four corners of the lower end of the cross block 153 are respectively fixedly connected with scraping plates 1531. The gear ring 154 is meshed with a gear 155. The lower end of the gear 155 is rotatably provided with a connecting block 1551, and the connecting block 1551 is fixedly connected to one side of the second tower body 11.

[0034] Specifically, by rotating the gear 155, the gear ring 154 can be driven to rotate. The gear 155 can be driven by a motor. The gear ring 154 drives the first cylindrical rod 15 to rotate through the cross block 153. The first cylindrical rod 15 can drive the spiral plate 151 and the first rectangular plate 152 to rotate at the same time. At the same time, the cross block 153 drives the scraping plates 1531 to rotate to scrape the impurities on the inner side wall of the second tower body 11.

[0035] As Figure 4As shown in the figure, the second cylinder 23 is fixedly connected to the first cylinder 22 through the second rectangular cylinder 24. The second rectangular cylinder 24 is internally connected to both the second cylinder 23 and the first cylinder 22. The second rectangular cylinder 24 is in an inclined state, and the connection between the second rectangular cylinder 24 and the second cylinder 23 is at a higher position. One side of the first cylinder 22 is fixedly connected to the first rectangular cylinder 221, and the first rectangular cylinder 221 is in an inclined state. The connection between the first rectangular cylinder 221 and the first cylinder 22 is at a lower position. One side of the second cylinder 23 is fixedly connected to the third rectangular cylinder 25, and the connection between the third rectangular cylinder 25 and the second cylinder 23 is at a higher position.

[0036] Specifically, when cleaning the packing, the packing is discharged into the second cylinder 23. After the cleaning is completed, the driving ring 231 drives the packing to slide to the upper end of the second cylinder 23. At this time, the third rectangular cylinder 25 is in a closed state until it slides to one side of the second rectangular cylinder 24. Then, the packing at the upper end of the driving ring 231 slides along the hypotenuse of the second rectangular cylinder 24 into the first cylinder 22. Then, the packing in the first cylinder 22 slides through the first connecting pipe 21 between the two filter plates 2, and the cleaned packing can be refilled between the filter plates 2. When the packing needs to be replaced, the driving ring 231 drives the packing to slide upward until it slides to one side of the third rectangular cylinder 25. At this time, the third rectangular cylinder 25 is in an open state. Then, the packing slides out along the third rectangular cylinder 25. Then, new packing is put into the first rectangular cylinder 221 and then enters between the filter plates 2 through the first connecting pipe 21 located at a higher position, and new packing can be replaced.

[0037] As Figure 6 - 7 As shown in the figure, a first cylindrical block 1552 is fixedly connected to the upper end of the gear 155. The first cylindrical block 1552 rotates through the bottom end of the second cylinder 23 and is rotatably arranged in the middle of the driving ring 231. A second cylindrical block 1553 is fixedly connected to the upper end of the first cylindrical block 1552. A rectangular block 1554 is fixedly connected to the upper end of the second cylindrical block 1553. An irregular strip 233 is slidably arranged in the middle of the reciprocating screw rod 232. A rectangular groove 2331 is opened at the lower end of the irregular strip 233. When the irregular strip 233 slides downward, the rectangular block 1554 is inserted into the rectangular groove 2331. A second rectangular plate 234 is fixedly connected to the upper end of the irregular strip 233. The lower ends on both sides of the second rectangular plate 234 are fixedly connected to the upper end of the second cylinder 23 through the telescopic plates 235.

[0038] Specifically, when the packing cleaned inside the second cylinder 23 needs to be driven upward, the gear 155 is in a rotating state. The gear 155 drives the rectangular block 1554 to rotate through the second cylindrical block 1553. By driving the telescopic plate 235 to contract, the second rectangular plate 234 drives the special-shaped strip 233 to move downward, so that the rectangular block 1554 is inserted into the rectangular groove 2331. At this time, the first cylindrical block 1552 can drive the special-shaped strip 233 to rotate through the rectangular block 1554. The special-shaped strip 233 drives the reciprocating lead screw 232 to rotate at the same time. The reciprocating lead screw 232 rotates and drives the ring 231 to slide upward at the same time, driving the packing to move upward.

[0039] Embodiment 2: As Figure 2 shown, compared with Embodiment 1, another implementation manner of the present invention is that a demister 3 is installed at the upper end inside the first tower body 1.

[0040] Specifically, the working principle of the demister 3 is based on the inertial impingement of gas and liquid droplets. The inside of the demister 3 is mostly a folded structure, such as the corrugated plate demister 3. This structure increases the chance of the mist being trapped. The mist that has not been removed is trapped again at the next turning point, thus significantly improving the demisting efficiency. By installing the demister 3 in the first tower body 1, the liquid droplets in the waste gas are removed by the demister 3, reducing the water-carrying amount of the waste gas and reducing the secondary pollution to the environment. Working principle: The waste gas is introduced into the first tower body 1 through the air collecting hood and the air inlet 12 to reduce the upward flow rate of the waste gas. Subsequently, the waste gas contacts the packing layer. Then, liquid is introduced into the serpentine pipe 13 through an external water pipe and then sprayed downward by the spray head 131. The waste gas introduced into the first tower body 1 contacts the sprayed liquid. Subsequently, the wastewater after contacting the waste gas falls into the second tower body 11. The waste gas floats upward from the bottom in the first tower body 1 and is discharged from the exhaust port 16. Then, a flocculant is added into the second tower body 11 through the feed port 17. The rotation of the gear 155 can drive the rotation of the gear ring 154. The gear 155 can be driven by a motor. The gear ring 154 drives the first cylindrical rod 15 to rotate through the cross block 153. The first cylindrical rod 15 can drive the spiral plate 151 and the first rectangular plate 152 to rotate simultaneously. At the same time, the cross block 153 drives the scraper 1531 to rotate to scrape the impurities on the inner side wall of the second tower body 11. Then, the rotation of the first cylindrical rod 15 is driven to drive the spiral plate 151 to rotate, forming a certain resistance to the waste gas and reducing the upward flow rate of the waste gas. Subsequently, the waste gas contacts the packing layer. Then, a flocculant is added into the second tower body 11 through the feed port 17. At the same time, the first cylindrical rod 15 drives the first rectangular plate 152 to rotate to stir the wastewater added with the flocculant. The wastewater mixed with the flocculant is discharged into the filter box 141 through the drain port 14. Subsequently, after being filtered by the filter box 141, the wastewater is filtered. Then, the air pump is started to drive the filtered wastewater to be discharged into the L-shaped pipe 143 through the first pipe 142, and then re-discharged into the serpentine pipe 13 and then sprayed by the spray head 131 again to realize the recycling of water resources; Packing is placed between the two filter plates 2. The filter plates 2 are inclined to increase the contact area between the packing and the waste gas. The service life of the packing is limited, and the packing needs to be cleaned and replaced regularly. By opening the valve in the middle of the first connecting pipe 21 at the lower position, the packing inside the filter plate 2 is discharged. Then, the valve in the first connecting pipe 21 at the higher position is opened, and then it enters the second cylinder 23. Then, by starting the air pump, the water filtered out in the filter box 141 is discharged into the second pipe 144 through the first pipe 142, and then enters the second cylinder 23 to clean the used packing in the second cylinder 23. After the cleaning is completed, the water is discharged into the filter box 141 through the second connecting pipe 236 for filtration; By driving the telescopic plate 235 to contract, the special-shaped strip 233 is driven downward by the second rectangular plate 234, so that the rectangular block 1554 is inserted into the rectangular groove 2331. At this time, the first cylindrical block 1552 can drive the special-shaped strip 233 to rotate through the rectangular block 1554. The special-shaped strip 233 drives the reciprocating lead screw 232 to rotate at the same time. The reciprocating lead screw 232 drives the ring 231 to slide upward while rotating. Subsequently, the packing material at the upper end of the ring 231 slides along the hypotenuse of the second rectangular cylinder 24 into the first cylinder 22. Then, the packing material in the first cylinder 22 slides into the space between the two filter plates 2 through the first connecting pipe 21, and the washed packing material can be refilled between the filter plates 2. When the packing material needs to be replaced, the ring 231 is driven to drive the packing material to slide upward until it slides to one side of the third rectangular cylinder 25. The third rectangular cylinder 25 is in an open state at this time. Subsequently, the packing material slides out along the third rectangular cylinder 25, and then new packing material is put into the first rectangular cylinder 221. Then, it enters the space between the filter plates 2 from the first connecting pipe 21 at a high position, and new packing material can be replaced.

[0041] The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements fall within the scope of the present invention claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. An environment-friendly waste gas purification device for a factory building, comprising a first tower body (1), an air inlet (12) is fixedly connected to one side of the first tower body (1), a spraying assembly is arranged at the upper end inside the first tower body (1), the spraying assembly includes a serpentine pipe (13) fixedly connected to the upper end inside the first tower body (1), a plurality of nozzles (131) are fixedly connected to the lower end of the serpentine pipe (13), a second tower body (11) is arranged at the lower end of the first tower body (1), the first tower body (1) and the second tower body (11) are fixedly connected through a U-shaped block (111), an exhaust port (16) is fixedly connected to the upper end of the first tower body (1), two groups of packing layers are arranged at the lower end of the spraying assembly, the packing layer includes two filter plates (2), packing is placed between the two filter plates (2), and the characteristics are as follows: A first cylindrical rod (15) is rotatably arranged in the middle of the first tower body (1), and a spiral plate (151) is fixedly connected to the upper end of the first cylindrical rod (15).

2. The environmentally friendly plant waste gas purification device according to claim 1, characterized in that: One side of the upper end of the second tower body (11) is fixedly connected with a feed inlet (17), the feed inlet (17) is communicated with the inside of the second tower body (11), a first rectangular plate (152) is fixedly connected around the lower end of the first cylindrical rod (15), and one side of the lower end of the second tower body (11) is fixedly connected with a drain outlet (14), and the drain outlet (14) is communicated with the inside of the second tower body (11).

3. An environmentally friendly plant waste gas purification device according to claim 2, characterized in that: One end of the drain outlet (14) away from the second tower body (11) is fixedly connected with a filter box (141), a first pipe (142) is fixedly connected to the upper end of the filter box (141), and the first pipe (142) is fixedly connected to the serpentine pipe (13) through an L-shaped pipe (143).

4. An environmentally friendly plant waste gas purification device according to claim 3, characterized in that: The filter plate (2) is placed obliquely, and first connecting pipes (21) are respectively fixedly connected between two filter plates (2) on both sides of the first tower body (1), the first connecting pipes (21) are communicated with the inside of the first tower body (1), and valves are installed inside the first connecting pipes (21).

5. An environment-friendly plant waste gas purification device according to claim 4, characterized in that: The two first connecting pipes (21) on both sides are respectively located at the high and low positions of the filter plate (2). The first connecting pipe (21) at the high position is fixedly connected with a first cylinder (22), the first connecting pipe (21) is communicated with the inside of the first cylinder (22), the first connecting pipe (21) at the low position is fixedly connected with a second cylinder (23), the first connecting pipe (21) is communicated with the inside of the second cylinder (23), one side of the first pipe (142) is fixedly connected to the second cylinder (23) through a second pipe (144), and one side of the lower end of the second cylinder (23) is connected to the filter box (141) through a second connecting pipe (236).

6. An environmentally friendly plant waste gas purification device according to claim 5, characterized in that: A reciprocating lead screw (232) is arranged in the middle of the second cylinder (23), a ring (231) is arranged outside the reciprocating lead screw (232), the middle of the ring (231) is meshed with the reciprocating lead screw (232) through a convex block, the ring (231) is slidably arranged in the second cylinder (23), and a plurality of through holes are formed in the middle of the ring (231).

7. An environmentally friendly plant waste gas purification device according to claim 6, characterized in that: A gear ring (154) is rotatably arranged between the first tower body (1) and the second tower body (11), a cross block (153) is fixedly connected to the middle of the gear ring (154), the cross block (153) is fixedly connected to the first cylindrical rod (15), scraping plates (1531) are respectively fixedly connected to the four corners of the lower end of the cross block (153), the gear ring (154) is meshed with a gear (155), a connecting block (1551) is rotatably arranged at the lower end of the gear (155), and the connecting block (1551) is fixedly connected to one side of the second tower body (11).

8. An environmentally friendly plant waste gas purification device according to claim 7, characterized in that: The second cylinder (23) is fixedly connected to the first cylinder (22) through a second rectangular cylinder (24). The second rectangular cylinder (24) is internally connected to both the second cylinder (23) and the first cylinder (22). The second rectangular cylinder (24) is in an inclined state, and the connection between the second rectangular cylinder (24) and the second cylinder (23) is at a higher position. One side of the first cylinder (22) is fixedly connected to a first rectangular cylinder (221). The first rectangular cylinder (221) is in an inclined state, and the connection between the first rectangular cylinder (221) and the first cylinder (22) is at a lower position. One side of the second cylinder (23) is fixedly connected to a third rectangular cylinder (25), and the connection between the third rectangular cylinder (25) and the second cylinder (23) is at a higher position.

9. An environmentally friendly plant waste gas purification device according to claim 8, characterized in that: A first cylindrical block (1552) is fixedly connected to the upper end of the gear (155). The first cylindrical block (1552) rotatably penetrates through the bottom end of the second cylinder (23) and is rotatably arranged in the middle of the ring (231). A second cylindrical block (1553) is fixedly connected to the upper end of the first cylindrical block (1552). A rectangular block (1554) is fixedly connected to the upper end of the second cylindrical block (1553). A special-shaped strip (233) is slidably arranged in the middle of the reciprocating lead screw (232). A rectangular groove (2331) is formed at the lower end of the special-shaped strip (233). When the special-shaped strip (233) slides downward, the rectangular block (1554) is inserted into the rectangular groove (2331). A second rectangular plate (234) is fixedly connected to the upper end of the special-shaped strip (233). The lower ends on both sides of the second rectangular plate (234) are fixedly connected to the upper end of the second cylinder (23) through telescopic plates (235).

10. An environmentally friendly plant waste gas purification device according to claim 1, characterized in that: A demister (3) is installed at the upper end inside the first tower body (1).

Images