An environmentally friendly factory exhaust gas purification device

Abstract

The present invention belongs to the technical field of dust removal, and specifically relates to an environmentally friendly factory exhaust gas purification device, comprising a first tower body, an air inlet fixedly connected to one side of the first tower body, a spray assembly provided at the upper end inside the first tower body, the spray assembly comprising a serpentine tube fixedly connected to the upper end inside the first tower body, a plurality of nozzles fixedly connected to the lower end of the serpentine tube, a second tower body provided at the lower end of the first tower body, the first tower body and the second tower body fixedly connected by a U-shaped block, an exhaust port fixedly connected to the upper end of the first tower body, two groups of packing layers provided at the lower end of the spray assembly, the packing layer comprising two filter plates, packing being placed between the two filter plates, a first cylindrical rod rotatably provided at the middle part of the first tower body, a spiral plate fixedly connected to the upper end of the first cylindrical rod, the spiral plate being driven to slow down the flow rate of exhaust gas, the slowing down of the flow rate of exhaust gas can reduce the impact on the packing, and solves the problem that the flow rate of exhaust gas is too fast and affects the exhaust gas treatment effect.

Description

Technical Field

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

[0002] In many industrial production workshops, a large amount of dust and waste gas are generated on the production lines. 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 cause harm to the health of the workers. Moreover, if the dust is not treated and is directly discharged into the atmosphere, it will pollute the external atmospheric environment.

[0003] A patent application with publication number CN110075655B discloses an environmentally friendly industrial dust purification device. Through the multi-level dust removal action of a cyclone separation mechanism, a bag dust removal mechanism, and a filter box, the degree of air purification 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 more convenient to clean. The design of the stirring mechanism and the water pump allows water and dust to be mixed, solving the problem of dust re-entering the air during the dust collection process, causing secondary pollution. Moreover, the present invention has a simple structure and stable transmission, making it easy to promote.

[0004] In the above-mentioned prior art, when purifying waste gas, it is impossible to control the exhaust speed of the waste gas. When the exhaust gas is discharged too quickly, it cannot fully contact 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 period of 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.

[0005] To this end, the present invention provides an environmentally friendly factory exhaust gas purification device. Summary of the Invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve its technical problems is: the environmentally friendly factory exhaust 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 spray assembly is provided at the upper end of the interior of the first tower body, the spray assembly includes a serpentine tube 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 serpentine tube, 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 at the lower end of the spray 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 fixed to the upper end of the first cylindrical rod.

[0008] Preferably, a feed port is fixedly connected to one side of the upper end of the second tower body, and the feed port is communicated with the interior of the second tower body. A first rectangular plate is fixedly connected around 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 interior of the second tower body.

[0009] Preferably, the drain outlet is fixedly connected to one end thereof away from the second tower body with a filter box, the upper end of the filter box is fixedly connected to a first pipe, and the first pipe is fixedly connected to the serpentine pipe via an L-shaped pipe.

[0010] Preferably, the filter plates are placed obliquely, and first connecting pipes are fixedly connected between the two filter plates on both sides of the first tower body. The first connecting pipes are communicated with the interior of the first tower body, and valves are installed inside the first connecting pipes.

[0011] Preferably, the first connecting pipes on both sides are respectively located at the high and low points of the filter plate. The first connecting pipe located at the high point is fixedly connected to the first cylinder, and the first connecting pipe is communicated with the interior of the first cylinder. The first connecting pipe located at the low point is fixedly connected to the second cylinder, and the first connecting pipe is communicated with the interior of the second cylinder. One side of the first pipe is fixedly connected to the second cylinder through the second pipe, and one side of the lower end of the second cylinder is connected to the filter box through the second connecting pipe.

[0012] Preferably, a reciprocating screw is provided in the middle of the second cylinder, a ring is provided on the outside of the reciprocating screw, the middle of the ring is engaged with the reciprocating screw through a protrusion, the ring is slidably arranged in the second cylinder, and a plurality of through holes are opened in the middle of the ring.

[0013] 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 fixedly connected to the four corners of the lower end of the cross block, the gear ring is meshed 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.

[0014] Preferably, the second cylinder is fixedly connected to the first cylinder through a second rectangular cylinder, the second rectangular cylinder is respectively connected to the inside of the second cylinder and the first cylinder, the second rectangular cylinder is in an inclined state, the connection between the second rectangular cylinder and the second cylinder is located at a high place, one side of the first cylinder is fixedly connected to the first rectangular cylinder, the first rectangular cylinder is in an inclined state, the connection between the first rectangular cylinder and the first cylinder is located at a low place, the one side of the second cylinder is fixedly connected to the third rectangular cylinder, and the connection between the third rectangular cylinder and the second cylinder is located at a high place.

[0015] Preferably, the upper end of the gear is fixed with a first cylindrical block, the first cylindrical block rotates through the bottom end of the second cylinder and is rotatably set in the middle of the ring, the upper end of the first cylindrical block is fixed with a second cylindrical block, the upper end of the second cylindrical block is fixed with a rectangular block, and a special-shaped bar is slidably set in the middle of the reciprocating screw, and a rectangular groove is opened at the lower end of the special-shaped bar. When the special-shaped bar slides downward, the rectangular block is inserted into the rectangular groove, and the upper end of the special-shaped bar is fixed with a second rectangular plate, and the lower ends of both sides of the second rectangular plate are fixed to the upper end of the second cylinder through telescopic plates.

[0016] Preferably, a demister is installed at the upper end of the first tower body.

[0017] The beneficial effects of the present invention are as follows:

[0018] 1. The environmentally friendly factory waste gas purification device described in the present invention slows down the waste gas flow rate by driving the spiral plate. Slowing the waste gas flow rate can reduce the impact on the filler, thereby extending the service life of the filler. Excessively high air flow rate may accelerate the wear of the filler, increase maintenance costs and frequency, and at the same time enable the waste gas to 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 fully contact with the sprayed liquid, thereby affecting the waste gas treatment effect and possibly causing secondary pollution to the environment.

[0019] 2. An environmentally friendly factory exhaust gas purification device according to the present invention, by tilting the filter plate, opening the valve in the middle of the first connecting pipe at a lower position, so that the filler inside the filter plate is discharged into the second cylinder, and then the air pump is started to discharge the filtered water in the filter box from the first pipe into the second pipe, and then enters the second cylinder to clean the used filler in the second cylinder, and the driving ring drives the filler to slide to the upper end of the second cylinder. At this time, the third rectangular cylinder is in a closed state until it slides to one side of the second rectangular cylinder, and then the filler at the upper end of the ring slides along the oblique side of the second rectangular cylinder into the first cylinder, and then the filler in the first cylinder slides again through the first connecting pipe to between the two filter plates, and the cleaned filler can be refilled between the filter plates. When the filler needs to be replaced, the driving ring drives the filler to slide upward until it slides to one side of the third rectangular cylinder. The third rectangular cylinder is now in an open state, and then the filler slides outward along the third rectangular cylinder, and then new filler is put into the first rectangular cylinder, and then enters between the filter plates from the first connecting pipe located at a higher position to replace the new filler. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below with reference to the accompanying drawings.

[0021] Figure 1 is a perspective view of embodiment 1 of the present invention;

[0022] Figure 2 This is a schematic cross-sectional view of the first tower;

[0023] Figure 3 This is a schematic cross-sectional view of the second tower;

[0024] Figure 4 is a schematic cross-sectional view of the first cylinder;

[0025] Figure 5 is a schematic cross-sectional view of the second cylinder;

[0026] Figure 6 It is a schematic diagram of the ring position;

[0027] Figure 7 It is a cross-sectional diagram of the reciprocating screw;

[0028] In the figure: 1, first tower body; 11, second tower body; 111, U-shaped block; 12, air inlet; 13, serpentine pipe; 131, nozzle; 14, drain outlet; 141, filter box; 142, first pipeline; 143, L-shaped pipe; 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 circular Column block; 1553, second cylindrical block; 1554, rectangular block; 16, exhaust port; 17, feed port; 2, filter plate; 21, first connecting pipe; 22, first cylinder; 221, first rectangular cylinder; 23, second cylinder; 231, ring; 232, reciprocating 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 DESCRIPTION

[0029] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0030] Example 1: Figure 1 - Figure 3 As shown, an environmentally friendly factory exhaust 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 spray assembly is provided at the upper end of the interior of the first tower body 1, the spray assembly includes a serpentine tube 13 fixedly connected to the upper end of the interior of the first tower body 1, a plurality of nozzles 131 are fixedly connected to the lower end of the serpentine tube 13, a second tower body 11 is provided at the lower end of the first tower body 1, the first tower body 1 and the second tower body 11 are fixedly connected by 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 provided at the lower end of the spray assembly, the packing layer includes two filter plates 2, and packing is placed between the two filter plates 2, a first cylindrical rod 15 is rotatably provided 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.

[0031] Specifically, when using a spray tower to purify the waste gas generated by the factory, the waste gas is passed into the spray tower, and then the waste gas is countercurrently contacted with the liquid sprayed from the top of the tower. The sprayed liquid contacts the impurities in the waste gas. After being treated by 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, it is impossible to control the flow rate of the waste gas when purifying the waste gas. When the waste gas discharge speed is too fast, it cannot fully contact 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 passed into the first tower body 1 through the gas collecting hood and the air inlet 12, and then the liquid is passed into the serpentine pipe 13 through the external water pipe, and then sprayed downward by the nozzle 131. The waste gas floats from bottom to top in the first tower body 1, and then drives the first cylindrical rod 15 to rotate, driving the spiral plate 151 to rotate, forming a waste gas A certain resistance is created to reduce the speed at which the exhaust gas flows upward, and then the exhaust gas contacts the packing layer, which is generally a plastic packing. The packing usually has a porous structure, a pleated shape or other special shapes. These designs are all to increase the surface area per unit volume. When the exhaust gas passes through the spray tower, it can contact with more sprayed liquid, thereby improving the removal efficiency of pollutants in the exhaust gas. Then the purified exhaust gas flows upward and is discharged from the exhaust port 16. The exhaust gas flow rate is slowed down by driving the spiral plate 151. Slowing down the exhaust gas flow rate can reduce the impact on the packing, thereby extending the service life of the packing. Excessive air flow rate may accelerate the wear of the packing, increase maintenance costs and frequency, and at the same time enable the exhaust gas to fully contact with the liquid, thereby improving the removal rate of the exhaust gas treatment, solving the problem that the exhaust gas flow rate is too fast, making it impossible for the exhaust gas to fully contact with the sprayed liquid, thereby affecting the exhaust gas treatment effect, and may also cause secondary pollution to the environment.

[0032] like Figure 2 - Figure 3 As shown, a feed port 17 is fixedly connected to one side of the upper end of the second tower body 11, and the feed port 17 is connected to the interior of the second tower body 11. A first rectangular plate 152 is fixedly connected around the lower end of the first cylindrical rod 15. A drain port 14 is fixedly connected to one side of the lower end of the second tower body 11, and the drain port 14 is connected to the interior of the second tower body 11.

[0033] Specifically, the exhaust gas is introduced into the first tower body 1 and contacts the sprayed liquid. Then, the wastewater after the exhaust gas contacts the wastewater falls into the second tower body 11. Then, a flocculant is added to 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 with the added flocculant to make it fully mixed. The flocculant is usually a high molecular polymer with a linear structure and a large number of active groups. These groups can be adsorbed on the surface of the colloidal particles. At the same time, the other parts of the high molecular chain extend in the solution, connecting multiple particles like a bridge to form larger flocs, which are then discharged from the drain port 14. The flocculant can cause the tiny suspended particles in the water to aggregate to form larger flocs. These flocs have better sedimentation performance, which facilitates subsequent sedimentation and separation operations, and significantly improves the sewage treatment efficiency.

[0034] like Figure 2 As shown, a filter box 141 is fixedly connected to one end of the drain outlet 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 .

[0035] Specifically, the wastewater mixed with the flocculant is discharged into the filter box 141 through the drain outlet 14, and then filtered by the filter box 141. The air pump is then started to drive the filtered wastewater to be discharged from the first pipe 142 into the L-shaped pipe 143, and then discharged back into the serpentine pipe 13, and then sprayed out by the nozzle 131, thereby realizing the recycling of water resources.

[0036] like Figure 4 As shown, the filter plates 2 are placed tilted, and first connecting pipes 21 are fixedly connected between the two filter plates 2 on both sides of the first tower body 1. The first connecting pipes 21 are connected to the interior of the first tower body 1, and valves are installed inside the first connecting pipes 21.

[0037] Specifically, a filler is placed between the two filter plates 2. The filter plates 2 are placed tilted to increase the contact area between the filler and the exhaust gas. The filler has a limited service life and needs to be cleaned and replaced regularly. The filler inside the filter plate 2 is discharged by opening the valve in the middle of the first connecting pipe 21 located at a lower position, and then the valve in the first connecting pipe 21 located at a higher position is opened. Then, new filler is added to the first connecting pipe 21 located at a higher position, so that the filler enters between the two filter plates 2 along the inclined surface of the filter plate 2, and the filler can be replaced.

[0038] like Figure 4-Figure 5As shown, the first connecting pipes 21 on both sides are respectively located at the high and low points of the filter plate 2. The first connecting pipe 21 located at the high point is fixedly connected to the first cylinder 22, and the first connecting pipe 21 is communicated with the interior of the first cylinder 22. The first connecting pipe 21 located at the low point is fixedly connected to the second cylinder 23, and the first connecting pipe 21 is communicated with the interior of the second cylinder 23. One side of the first pipe 142 is fixedly connected to the second cylinder 23 through the second pipe 144, and one side of the lower end of the second cylinder 23 is connected to the filter box 141 through the second connecting pipe 236.

[0039] Specifically, after the used filler between the two filter plates 2 is discharged, it enters the second cylinder 23 through the first connecting pipe 21, and then the air pump is started to discharge the water filtered in the filter box 141 through the first pipe 142 into the second pipe 144, and then enters the second cylinder 23 to clean the used filler in the second cylinder 23. After cleaning, the water is discharged into the filter box 141 through the second connecting pipe 236 for filtration, thereby cleaning the used filler.

[0040] like Figure 5 As shown, a reciprocating screw 232 is provided in the middle of the second cylinder 23, and a ring 231 is provided on the outside of the reciprocating screw 232. The middle of the ring 231 engages with the reciprocating screw 232 through a protrusion. The ring 231 is slidably arranged in the second cylinder 23, and a plurality of through holes are opened in the middle of the ring 231.

[0041] Specifically, the cleaned filler can be reused. The reciprocating screw 232 is driven to rotate to drive the ring 231 to slide upward in the second cylinder 23. As the filler moves upward, moisture on the surface of the filler drips from several through holes provided in the middle of the ring 231. The filler can then be taken out and reused.

[0042] like Figure 3 As shown, a gear ring 154 is rotatably provided 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, and scrapers 1531 are respectively fixedly connected to the four corners of the lower end of the cross block 153. The gear ring 154 is engaged with a gear 155, and a connecting block 1551 is rotatably provided 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.

[0043] Specifically, the gear 155 can drive the ring gear 154 to rotate by rotating. The gear 155 can be driven by a motor. The ring gear 154 drives the first cylindrical rod 15 to rotate through the cross block 153. The first cylindrical rod 15 can simultaneously drive the spiral plate 151 and the first rectangular plate 152 to rotate. At the same time, the cross block 153 drives the scraper 1531 to rotate to scrape impurities on the inner side wall of the second tower body 11.

[0044] like Figure 4As shown, the second cylinder 23 is fixedly connected to the first cylinder 22 through the second rectangular cylinder 24, and the second rectangular cylinder 24 is connected to the interior of the second cylinder 23 and the first cylinder 22 respectively. 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 located at a high place. The first rectangular cylinder 22 is fixedly connected to one side of the first cylinder 22 with 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 located at a low place. The third rectangular cylinder 25 is fixedly connected to one side of the second cylinder 23, and the connection between the third rectangular cylinder 25 and the second cylinder 23 is located at a high place.

[0045] Specifically, when cleaning the filler, the filler is discharged into the second cylinder 23. After cleaning is completed, the driving ring 231 drives the filler 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 filler 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 filler in the first cylinder 22 slides between the two filter plates 2 through the first connecting pipe 21, and the cleaned filler can be refilled between the filter plates 2. When the filler needs to be replaced, the driving ring 231 drives the filler 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, and then the filler slides outward along the third rectangular cylinder 25, and then new filler is put into the first rectangular cylinder 221. Then, it enters between the filter plates 2 from the first connecting pipe 21 located at a high position to replace the new filler.

[0046] like Figure 6-7 As shown, the upper end of the gear 155 is fixedly connected to a first cylindrical block 1552, the first cylindrical block 1552 rotates through the bottom end of the second cylinder 23 and is rotatably set in the middle of the ring 231, the upper end of the first cylindrical block 1552 is fixedly connected to a second cylindrical block 1553, the upper end of the second cylindrical block 1553 is fixedly connected to a rectangular block 1554, and a special-shaped bar 233 is slidably set in the middle of the reciprocating screw 232, and a rectangular groove 2331 is opened at the lower end of the special-shaped bar 233. When the special-shaped bar 233 slides downward, the rectangular block 1554 is inserted into the rectangular groove 2331, and the upper end of the special-shaped bar 233 is fixedly connected to a second rectangular plate 234, and the lower ends of both sides of the second rectangular plate 234 are fixedly connected to the upper end of the second cylinder 23 through a telescopic plate 235.

[0047] Specifically, when the cleaned filler in the second cylinder 23 needs to be driven upward, the gear 155 is in a rotating state, and the gear 155 drives the rectangular block 1554 to rotate through the second cylindrical block 1553, and drives the telescopic plate 235 to contract, and drives the special-shaped strip 233 to move downward through 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, and the special-shaped strip 233 simultaneously drives the reciprocating screw 232 to rotate. The rotation of the reciprocating screw 232 simultaneously drives the ring 231 to slide upward, driving the filler to move upward.

[0048] Example 2: Figure 2 As shown in the comparative example 1, another embodiment of the present invention is that a demister 3 is installed at the upper end of the first tower body 1 .

[0049] Specifically, the working principle of the demister 3 is based on the inertial impact of gas and liquid droplets. The interior of the demister 3 is mostly a folding structure, such as a corrugated plate demister 3. This structure increases the chance of mist capture. The mist that is not removed is captured again at the next bend, thereby significantly improving the demisting efficiency. By installing the demister 3 in the first tower body 1, the demister 3 removes liquid droplets from the exhaust gas, reduces the amount of water in the exhaust gas, and reduces secondary pollution to the environment.

[0050] Working principle: exhaust gas is introduced into the first tower body 1 through the air collecting hood and the air inlet 12, and the speed of the exhaust gas flowing upward is reduced. Then the exhaust gas contacts the packing layer, and then the liquid is introduced into the serpentine tube 13 through the external water pipe, and then sprayed downward by the nozzle 131. The exhaust gas enters the first tower body 1 and contacts the sprayed liquid. Then the wastewater after the exhaust gas contacts falls into the second tower body 11. The exhaust gas floats from the bottom to the top in the first tower body 1 and is discharged from the exhaust port 16. Then, flocculant is added to the second tower body 11 through the feed port 17. The gear 155 is rotated to drive the ring gear 154 to rotate. The gear 155 can be driven by a motor. The ring gear 154 drives the first cylindrical rod 15 to rotate through the cross block 153. The first cylindrical rod 15 can simultaneously drive the spiral plate 151 and the first rectangular plate 152 to rotate. At the same time, the cross block 153 drives the scraper 1531 to rotate, scrapes impurities on the inner side wall of the second tower body 11, and then drives the first cylindrical rod 15 to rotate and drive the spiral plate 151 to rotate, forming a certain resistance to the exhaust gas, reducing the speed of the exhaust gas flowing upward, and then the exhaust gas contacts the filler layer, and then adds flocculant to 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 added with the flocculant, and the wastewater mixed with the flocculant is discharged into the filter box 141 through the drain port 14, and then filtered by the filter box 141 to filter the wastewater. Then, the air pump is started to drive the filtered wastewater to be discharged from the first pipe 142 into the L-shaped pipe 143, and then discharged into the serpentine pipe 13 again, and then sprayed out by the nozzle 131, realizing the recycling of water resources;

[0051] A filler is placed between the two filter plates 2. The filter plates 2 are placed tilted to increase the contact surface between the filler and the exhaust gas. The filler has a limited service life and needs to be cleaned and replaced regularly. The filler inside the filter plate 2 is discharged by opening the valve in the middle of the first connecting pipe 21 located at the lower position. Then, the valve in the first connecting pipe 21 located at the higher position is opened, and then the filler enters the second cylinder 23. Then, by starting the air pump, the filtered water in the filter box 141 is discharged from the first pipe 142 into the second pipe 144, and then enters the second cylinder 23 to clean the used filler in the second cylinder 23. After cleaning, the water is discharged from the second connecting pipe 236 into the filter box 141 for filtration.

[0052] By driving the telescopic plate 235 to retract, 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 also drives the reciprocating screw 232 to rotate. The reciprocating screw 232 rotates and drives the ring 231 to slide upward. Then the filler 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 first cylinder The filler in 22 then slides from the first connecting tube 21 to between the two filter plates 2, and the cleaned filler can be refilled between the filter plates 2. When the filler needs to be replaced, the driving ring 231 drives the filler to slide upward until it slides to one side of the third rectangular tube 25. The third rectangular tube 25 is in an open state at this time, and then the filler slides outward along the third rectangular tube 25, and then new filler is put into the first rectangular tube 221, and then enters between the filter plates 2 from the first connecting tube 21 located at a high position to replace the new filler.

[0053] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. An environmentally friendly factory waste gas purification device, comprising a first tower body (1), an air inlet (12) fixedly connected to one side of the first tower body (1), a spray assembly provided at the upper end of the interior of the first tower body (1), the spray assembly comprising a serpentine tube (13) fixedly connected to the upper end of the interior of the first tower body (1), a plurality of spray heads (131) fixedly connected to the lower end of the serpentine tube (13), a second tower body (11) provided at the lower end of the first tower body (1), the first tower body (1) and the second tower body (11) fixedly connected via a U-shaped block (111), an exhaust port (16) fixedly connected to the upper end of the first tower body (1), two groups of packing layers provided at the lower end of the spray assembly, the packing layers comprising two filter plates (2), packing placed between the two filter plates (2), characterized in that: A first cylindrical rod (15) is rotatably provided 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); A drain outlet (14) is fixedly connected to one side of the lower end of the second tower body (11), the drain outlet (14) is communicated with the interior of the second tower body (11), a filter box (141) is fixedly connected to one end of the drain outlet (14) away from the second tower body (11), and a first pipe (142) is fixedly connected to the upper end of the filter box (141); The filter plates (2) are placed obliquely, and first connecting pipes (21) are fixedly connected to the two sides of the first tower body (1) between the two filter plates (2). The first connecting pipes (21) are in communication with the interior of the first tower body (1), and a valve is installed inside the first connecting pipes (21); The first connecting pipes (21) on both sides are respectively located at the upper and lower parts of the filter plate (2); the first connecting pipe (21) located at the upper part is fixedly connected to the first cylinder (22), and the first connecting pipe (21) is communicated with the interior of the first cylinder (22); the first connecting pipe (21) located at the lower part is fixedly connected to the second cylinder (23), and the first connecting pipe (21) is communicated with the interior of the second cylinder (23); one side of the first pipe (142) is fixedly connected to the second cylinder (23) through the second pipe (144); and one side of the lower end of the second cylinder (23) is connected to the filter box (141) through the second connecting pipe (236); A reciprocating screw (232) is provided in the middle of the second cylinder (23), a circular ring (231) is provided on the outside of the reciprocating screw (232), the middle of the circular ring (231) is engaged with the reciprocating screw (232) via a protrusion, the circular ring (231) is slidably provided in the second cylinder (23), and a plurality of through holes are opened in the middle of the circular ring (231).

2. The environmentally friendly factory exhaust gas purification device according to claim 1, characterized in that: A feed port (17) is fixedly connected to one side of the upper end of the second tower body (11), and the feed port (17) is communicated with the interior of the second tower body (11). A first rectangular plate (152) is fixedly connected to the periphery of the lower end of the first cylindrical rod (15).

3. The environmentally friendly factory exhaust gas purification device according to claim 2, characterized in that: The first pipe (142) is fixedly connected to the serpentine pipe (13) via an L-shaped pipe (143).

4. The environmentally friendly factory exhaust gas purification device according to claim 1, characterized in that: A gear ring (154) is rotatably provided 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); scrapers (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 provided 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).

5. The environmentally friendly factory exhaust gas purification device according to claim 4, characterized in that: The second cylinder (23) is fixedly connected to the first cylinder (22) through the second rectangular cylinder (24). The second rectangular cylinder (24) is connected to the interior of the second cylinder (23) and the first cylinder (22) respectively. The second rectangular cylinder (24) is in an inclined state. The connection between the second rectangular cylinder (24) and the second cylinder (23) is located at a high position. The first cylinder (22) is fixedly connected to the first rectangular cylinder (221) on one side. The first rectangular cylinder (221) is in an inclined state. The connection between the first rectangular cylinder (221) and the first cylinder (22) is located at a low position. The second cylinder (23) is fixedly connected to the third rectangular cylinder (25) on one side. The connection between the third rectangular cylinder (25) and the second cylinder (23) is located at a high position.

6. The environmentally friendly factory exhaust gas purification device according to claim 5, characterized in that: The upper end of the gear (155) is fixedly connected to a first cylindrical block (1552), the first cylindrical block (1552) rotates through the bottom end of the second cylinder (23) and is rotatably arranged in the middle of the ring (231), the upper end of the first cylindrical block (1552) is fixedly connected to a second cylindrical block (1553), the upper end of the second cylindrical block (1553) is fixedly connected to a rectangular block (1554), the middle part of the reciprocating screw (232) is slidably provided with a special-shaped bar (233), the lower end of the special-shaped bar (233) is provided with a rectangular groove (2331), when the special-shaped bar (233) slides downward, the rectangular block (1554) is inserted into the rectangular groove (2331), the upper end of the special-shaped bar (233) is fixedly connected to a second rectangular plate (234), and the lower ends of both sides of the second rectangular plate (234) are fixedly connected to the upper end of the second cylinder (23) through telescopic plates (235).

7. The environmentally friendly factory exhaust gas purification device according to claim 1, characterized in that: A demister (3) is installed at the upper end of the first tower body (1).

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