Industrial waste gas washing spray tower

Abstract

The invention relates to the technical field of waste gas purification, in particular to an industrial waste gas washing spray tower which comprises a tower body, a circulating water tank, a water spray pipe, a gas pipe, a fan and a discharge pipe, a gas inlet is formed in the left side of the tower body, the industrial waste gas washing spray tower further comprises a base frame, a shaft rod, fan blades, a stripping assembly, a baffle, a filter membrane, an adjusting assembly and a scraper, and the base frame is connected to the inner wall of the tower body; the shaft rod is installed on the base frame, the fan blade array is connected to the outer surface of the shaft rod, the stripping assembly is connected to the outer side of the base frame, the baffle is connected to the lower end of the stripping assembly, the lower end of the filter membrane is connected with the periphery of the upper inclined face of the baffle, the adjusting assembly is connected to the lower side of the shaft rod, and the scraper is connected with the adjusting assembly. The sediment is generated on an elastic plane, and the sediment is separated from the plane by tightening the plane, so that the accumulation of the sediment is reduced, and the purpose of good sediment separation effect is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of waste gas purification, in particular to an industrial waste gas washing spray tower. Background Art

[0002] Industrial waste gas refers to gases containing various pollutants discharged into the atmosphere during the industrial production process. Since the impurities contained in industrial waste gas will pollute the air when discharged into the atmosphere, industrial waste gas cannot be discharged directly and needs to be purified before discharge. The washing spray tower is a commonly used equipment for treating industrial waste gas.

[0003] The working principle of the washing spray tower is to atomize the water flow added with the agent and fully contact the waste gas with water, so that the pollutants in the waste gas are absorbed by the water or chemically react, and the impurities in the waste gas are precipitated, so as to achieve the purpose of purifying the waste gas; when treating the waste gas, it is necessary to spray the corresponding neutralizing liquid in the spray tower to react with the substances in the waste gas and precipitate the sediment, so as to achieve the purpose of reducing the impurities contained in the waste gas. However, the contact between the waste gas and the water flow is in the packing layer. In order to improve the filtering effect, the gap between the material body in the packing layer is small, and the sediment is easy to solidify on the surface of the packing layer, which leads to blockage of the packing layer and affects the filtering effect of the waste gas.

[0004] In view of the above problems, the prior art has proposed some solutions. For example, a high-efficiency spray tower with anti-clogging function for waste gas treatment with publication number CN109603373B is provided. By setting a dredging mechanism, the packing layer is vibrated when blocked to shake off impurities, thereby achieving the purpose of avoiding blockage of the packing layer. When treating waste gas with more alkaline substances, the alkaline substances undergo a neutralization reaction and precipitate sediments, which are mostly salt sediments. When the salt sediments flow on the surface of the packing layer, they are easy to form hanging crystals and adhere to the surface of the packing layer, making the surface of the material body The surface is uneven, and the uneven surface is more prone to crystal hanging, which in turn leads to a shorter blockage interval between the materials. The crystals on the surface of the material can be detached by shaking, but the crystals on the surface of each material need to be removed to reduce the overall crystallization rate of the filler layer. At this time, the unblocking device needs to be shaken for a longer time, but the efficiency of removing the crystals will be slower. When the shaking time is short, it is easy to lead to poor removal effect of the crystals on the surface of the material. The surface of the material is uneven, and it is easy for crystals to form on the surface of the material when the water flows, which leads to a short blockage interval and affects the filtering effect of the exhaust gas.

[0005] Therefore, an industrial waste gas washing spray tower is proposed. Summary of the invention

[0006] The purpose of the present invention is to provide an industrial waste gas washing spray tower, which solves the problem that the packing layer is easily blocked when filtering alkaline waste gas, thereby affecting the waste gas filtration efficiency. By making the sediment produce on an elastic plane, the sediment is quickly separated from the plane by tightening the plane, and the stretched plane stretches the sediment away, thereby reducing the accumulation of the sediment, thereby achieving the purpose of good sediment separation effect.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] An industrial waste gas washing spray tower comprises a tower body, a circulating water tank, a water spray pipe, an air pipe, a fan and an exhaust pipe, wherein an air inlet is opened on the left side of the tower body, the circulating water tank is connected to the lower end of the front side of the tower body, the water spray pipe is connected to the upper end of the circulating water tank, one end of the air pipe is connected to the upper end of the tower body, the air inlet of the fan is connected to the other end of the air pipe, the exhaust pipe is connected to the air outlet of the fan, and further comprises a base frame, a shaft, a fan blade, a stripping assembly, a baffle, a filter membrane, an adjustment assembly and a scraper, wherein the base frame is connected to the inner The wall, the shaft is installed on the base, the fan blade array is connected to the outer surface of the shaft, the stripping assembly is connected to the outer side of the base, the baffle is connected to the lower end of the stripping assembly, the lower end of the filter membrane is connected to the periphery of the upper inclined surface of the baffle, the adjusting assembly is connected to the lower side of the shaft, the scraper is connected to the adjusting assembly, when the weight of the filter membrane changes, the baffle moves along the axis of the base surface, when the baffle moves, the adjusting assembly drives the scraper to rotate in accordance with the lower inclined surface of the baffle, and when the baffle moves down to a specified position, the stripping assembly tightens the filter membrane.

[0009] Through the above scheme, the combined water flow after purifying the industrial waste gas first flows on the filter membrane on the outer surface of the baffle, and the water flow penetrates the filter membrane through the air flow, and then the impurities harden and form a crust on the surface of the filter membrane, thereby achieving the purpose of facilitating the recycling of water. At the same time, by setting up a stripping component, when the impurities accumulate to a certain weight, the impurities are stripped from the surface of the filter membrane, effectively ensuring the long-term filtering effect of the filter membrane on the water flow.

[0010] Preferably, the base frame includes a fixed rod, a top shell and a slide, the fixed rod is connected to the inner wall of the tower body, the top shell and the slide are respectively connected to the upper and lower sides of the fixed rod away from one end of the tower body, the diameter of the bottom surface of the top shell is larger than the maximum diameter of the outer wall of the slide, the top shell is connected to the inside of the motor, and the power output end of the motor is connected to the shaft.

[0011] Through the above scheme, the diameter value of the bottom surface of the top shell is greater than the maximum diameter value of the outer wall of the slide, which can reduce the combined water flow of exhaust gas and treated water flowing into the inner wall of the slide, so that the water flow flows along the surface of the separation component, thereby effectively improving the removal effect of impurities in the combined water flow.

[0012] Preferably, the adjusting assembly includes a support frame, a retaining ring, a connecting frame, a tension spring and a rotating frame, the support frame is connected to the outer surface of the shaft rod, the retaining ring is connected to the lower side of the support frame, the connecting frame is connected to the lower end of the retaining ring, the end of the connecting frame away from the shaft rod is connected to the inner wall of the baffle plate, the upper and lower ends of the tension spring are respectively connected to the support frame and the connecting frame, and the rotating frame is connected to the lower side of the connecting frame, whereby the end of the connecting frame away from the shaft rod is connected to the plate body, and then when the plate body moves downward, it will drive the connecting frame to move downward, the connecting frame is a force-bearing bracket, and the position of the rotating plate is adjusted by moving the connecting frame downward, and then the position of the scraper is adjusted to ensure stable rotation of the scraper.

[0013] Preferably, the rotating frame includes a frame body, a rectangular block and a rectangular groove, the frame body is rotatably connected to the lower side of the connecting frame, the rectangular block is connected to the inner wall of the frame body, the rectangular groove is opened on the lower side of the circumference of the shaft rod, the rectangular block is adapted to be snap-fitted into the rectangular groove, the scraper is connected to one end of the frame body away from the shaft rod, and one end of the scraper is inclined, thereby, the rotation of the shaft rod can drive the frame body to rotate, and then drive the scraper to rotate, thereby achieving the purpose of scraping the lower surface of the plate body.

[0014] Preferably, the stripping assembly includes a ring, a mounting hole, a thrust spring, a top ring and a limit piece, the ring is connected to the outer wall of the slide, the mounting hole array is connected to the upper end of the ring, the lower end of the thrust spring is connected to the mounting hole, the top ring is connected to the upper end of the thrust spring, the upper end of the filter membrane is connected to the top ring, the limit piece is arranged at the lower end of the top ring, the roughness of the outer surface of the slide gradually increases from bottom to top, thereby, the roughness of the outer surface of the slide gradually increases from bottom to top, since the top ring is located on the upper side of the ring, and the friction between the top ring and the slide is smaller than the friction between the ring and the slide, and the top ring moves up faster than the ring, which makes it easier to remove impurities.

[0015] Preferably, the limiting member includes a spring plate, a buckle, a slot and a limiting block, the spring plate array is connected to the lower end of the top ring, the buckle is connected to the lower end of the spring plate, the slot array is opened at the upper end of the sleeve ring, the limiting block array is connected to the outer wall of the slide, the longitudinal cross-section of the buckle is a right-angled trapezoid, and the movable trajectory of the buckle inclined surface is in contact with the limiting block.

[0016] Through the above solution, the longitudinal section of the buckle is a right-angled trapezoid. In the initial state, the right-angled side of the buckle contacts the edge of the collar groove, thereby fixing the collar and the top ring.

[0017] Preferably, the baffle includes a plate body, a through hole and a notch, the plate body is connected to the lower end of the ring, the through holes and the notch are arranged in an array on the surface of the plate body, the notch is located at the periphery of the through hole, the plate body is in the shape of a trumpet that is small at the top and large at the bottom, the outer edge of the plate body is chamfered, and the diameter of the through hole gradually increases from bottom to top.

[0018] Through the above scheme, the plate body is in the shape of a trumpet that is small at the top and large at the bottom, and the outer wall of the plate body is inclined, which is convenient for the flow of water. At the same time, when the exhaust gas flows, it gathers and makes the exhaust gas flow faster in the middle, so that the exhaust gas in the middle has a greater pulling speed on the water. The diameter value of the through hole gradually increases from bottom to top, so that the filtering amount of water on the upper side of the through hole is larger, which effectively improves the filtering speed.

[0019] Preferably, the filter membrane includes a contraction section and a buffer section, the upper end of the contraction section is connected to the outer surface of the top ring, the buffer section is connected to the lower side of the contraction section, the lower end of the buffer section is connected to the outer ring of the plate body, and the filter membrane is made of nylon.

[0020] Through the above scheme, the filter membrane is made of nylon material and has good expansion and contraction performance, so it is convenient to open it from the bottom to cover the baffle to complete the installation. At the same time, because the baffle is trumpet-shaped, the diameter of the contraction section is set to be smaller, while the diameter value of the buffer section is the same. When it is mounted on the baffle, the buffer section is affected by the baffle and opens to different extents. The contraction section will cause the buffer section to form folds at the connection between the two, thereby improving the filtering effect of the buffer section close to the contraction section.

[0021] Preferably, the angle between the longitudinal section of the plate body and the horizontal plane is less than 5°, the top shell is conical, and the angle between the longitudinal section of the top shell and the horizontal plane is greater than 25°. Therefore, the angle between the plate body and the horizontal plane is less than 5 degrees, and the descending amplitude of the plate body surface is relatively gentle, which is convenient for retaining impurities. The angle between the longitudinal section of the top shell and the horizontal plane is greater than 25°, which is convenient for the top shell surface to flow with water and reduce the accumulation of impurities on the top shell surface.

[0022] Preferably, the inner wall of the tower body is connected with a collecting rack, a flow hole is opened at the lower end of the collecting rack, and the diameter of the inner wall of the collecting rack is greater than the diameter of the outer wall of the slot.

[0023] Through the above solution, the diameter of the inner wall of the collection rack is greater than the diameter of the outer wall of the slot, and when the water drips at the slot, it will not drip into the collection rack, reducing the contact between the water and impurities.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] 1. The present invention solves the problem that when filtering alkaline waste gas, the packing layer is easily blocked, which affects the waste gas filtering efficiency. By laying a filter membrane on the upper inclined surface of the baffle, impurities accumulate on the surface of the filter membrane, and the baffle is pressed to move down to a specified position, the stripping component pulls the upper and lower ends of the filter membrane respectively, so that the filter membrane is deformed, and then the filter membrane quickly separates from the crystalline impurities and stretches the crystalline impurities, thereby achieving the purpose of quickly removing the accumulated sediments. At the same time, by setting an adjustment component, the scraper adapts to the downward movement of the baffle and scrapes the lower inclined surface of the baffle, thereby ensuring the cleanliness of the lower inclined surface of the baffle, effectively avoiding the accumulation of sediments, and thus ensuring the filtering effect of the waste gas.

[0026] 2. By setting up the stripping component, the accumulation of impurities will increase the weight of the baffle, thereby causing the baffle to drive the ring to move down along the surface of the slide, and the ring drives the buckle to move down. During the downward movement of the buckle, it will contact the limit block, causing the spring plate to bend, and then the ring is separated from the top ring, and the top ring drives the upper end of the filter membrane to move up, so that the filter membrane is straightened, and then the crystals are separated from the filter membrane, thereby achieving the purpose of separating the filter membrane and the crystals. At the same time, after the top ring moves up, the inclination angle of the filter membrane increases, and then the crystals can slide along the surface of the filter membrane to the collection rack, thereby achieving the purpose of facilitating the collection of the crystals, thereby avoiding the accumulation of crystals on the surface of the filter membrane and ensuring the filtering effect of the exhaust gas.

[0027] 3. By setting up the adjustment component, when the baffle gains weight, it will drive the connecting frame to move downward, thereby causing the tension spring to open. At this time, the connecting frame is the force point, thereby ensuring the gap between the scraper and the baffle. At the same time, one side of the baffle is inclined, and when the baffle rotates, the crystals will be collected on the inclined surface of the baffle and in the collection frame extended by the baffle. During the rotation of the baffle, the crystals on the inclined surface will accumulate in the collection frame, thereby preventing the crystals from falling into the circulating water tank, effectively ensuring the cleanliness of the circulating water, and thus ensuring the filtering effect of the exhaust gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0029] Figure 2 It is a structural schematic diagram of the base frame part of the present invention;

[0030] Figure 3 It is a structural schematic diagram of the regulating component part of the present invention;

[0031] Figure 4 It is a structural schematic diagram of the rotating frame part of the present invention;

[0032] Figure 5 It is a structural schematic diagram of the baffle part of the present invention;

[0033] Figure 6It is a structural schematic diagram of the position-limiting member of the present invention;

[0034] Figure 7 It is a schematic diagram of the structure of the present invention from a top view;

[0035] Figure 8 It is a schematic diagram of the state of the filter membrane after being tightened.

[0036] In the figure: 1, tower body; 2, circulating water tank; 3, water spray pipe; 4, air pipe; 5, fan; 6, discharge pipe; 7, base frame; 701, fixing rod; 702, top shell; 703, slide; 8, shaft rod; 9, fan blade; 10, stripping assembly; 1001, collar; 1002, mounting hole; 1003, thrust spring; 1004, top ring; 1005, limiter; 10051, spring plate; 10052, buckle; 10053, slot; 10054, limit block; 11. baffle; 1101. plate body; 1103. through hole; 1104. notch; 12. filter membrane; 1201. contraction section; 1202. buffer section; 13. adjustment assembly; 1301. support frame; 1302. retaining ring; 1303. connecting frame; 1304. tension spring; 1305. rotating frame; 13051. frame body; 13052. rectangular block; 13053. rectangular groove; 14. scraper; 15. motor; 16. collecting frame; 1601. flow hole. DETAILED DESCRIPTION

[0037] The following is a clear and complete description of the technical solution of the embodiment of the present invention in conjunction with the drawings of the embodiment of the present invention, so that its working state and structural features are more detailed. Obviously, the described embodiment is only a partial embodiment of the present invention, not a complete embodiment. Based on the embodiment of the present invention, other embodiments obtained by ordinary technicians in this field without making any creativity belong to the protection scope of the present invention.

[0038] See also Figures 1 to 8 The present invention provides an industrial waste gas washing spray tower, and the technical solution is as follows:

[0039] For details, please refer to Figures 1 to 8An industrial waste gas washing spray tower comprises a tower body 1, a circulating water tank 2, a water spray pipe 3, an air pipe 4, a fan 5 and an exhaust pipe 6. An air inlet is provided on the left side of the tower body 1, and a common filling layer is provided in the middle of the tower body 1. Since there are fewer impurities in the waste gas on the upper side of the tower body 1, a common filling layer is provided. A window is provided at the front end of the tower body 1. The circulating water tank 2 is connected to the lower end of the front side of the tower body 1. A water pump and a medicine box are connected to the circulating water tank 2. The water spray pipe 3 is connected to the upper end of the circulating water tank 2. Water can be pumped into the water spray pipe 3 by the water pump. The medicine box adds impurities to the water flow. Adding agents, thereby improving the treatment effect of water flow on exhaust gas, the other end of the water spray pipe 3 extends to the inner cavity of the circulating water tank 2, the water spray pipe 3 is divided into two sections in the tower body 1, one section is located on the upper side of the filling layer, and the other section is located on the lower side of the filling layer. The part of the water spray pipe 3 in the circulating water tank 2 is connected with an atomizing nozzle, and the water flow is atomized by the atomizing nozzle to improve the treatment effect on the flue gas, one end of the air pipe 4 is connected to the upper end of the tower body 1, the air inlet of the fan 5 is connected to the other end of the air pipe 4, and the exhaust pipe 6 is connected to the air outlet of the fan 5. The air enters from the air inlet, flows from bottom to top in the tower to the air pipe 4, and then flows into the atmosphere through the exhaust pipe 6. It also includes a base frame 7, a shaft 8, a fan blade 9, a stripping assembly 10, a baffle 11, a filter membrane 12, an adjustment assembly 13 and a scraper 14. The base frame 7 is connected to the inner wall of the tower body 1, the base frame 7 is located at the lower side of the filling layer, the lower side water spray pipe 3 is located on the upper side of the base frame 7, the shaft 8 is installed on the base frame 7, the fan blade 9 array is connected to the outer surface of the shaft 8, the stripping assembly 10 is connected to the outer side of the base frame 7, and the baffle 11 is connected to the stripping At the lower end of the assembly 10, the lower end of the filter membrane 12 is connected to the periphery of the upper inclined surface of the baffle 11, the adjusting assembly 13 is connected to the lower side of the shaft 8, and the scraper 14 is connected to the adjusting assembly 13. When the weight of the filter membrane 12 changes, the baffle 11 moves up and down along the surface of the base frame 7. When the baffle 11 moves, the adjusting assembly 13 drives the scraper 14 to rotate in contact with the lower inclined surface of the baffle 11. When the weight of the filter membrane 12 increases to a specified value, the stripping assembly 10 tightens the filter membrane 12. When the weight of the filter membrane 12 decreases to a specified value, the adjusting assembly 13 drives the baffle 11 to reset.

[0040] By setting the filter membrane 12, the combined water flow after purifying the industrial waste gas first flows on the filter membrane 12 on the upper slope of the baffle 11, and the suction force generated by the airflow from bottom to top makes the water flow quickly penetrate on the filter membrane 12 and flow to the lower slope of the baffle 11, and the impurities harden and form a crust on the surface of the filter membrane 12, and the filtered water flow flows into the circulating water tank 2, so as to achieve the purpose of facilitating the recycling of water. At the same time, by setting the stripping component 10, when the impurities accumulate to a certain weight, the pleated filter membrane 12 is straightened, and then the impurities are stripped from the surface of the filter membrane 12, which effectively ensures the long-term filtering effect of the filter membrane 12 on the water flow.

[0041] As an embodiment of the present invention, refer to Figure 2 , Figure 3 , Figure 4 and Figure 8The base frame 7 includes a fixed rod 701, a top shell 702 and a slide 703. The fixed rod 701 is connected to the inner wall of the tower body 1. The top shell 702 and the slide 703 are respectively connected to the upper and lower sides of the fixed rod 701 away from the end of the tower body 1, so that there is a gap of the thickness of the fixed rod 701 between the top shell 702 and the slide 703. The exhaust gas diffuses and flows out from the gap between the top shell 702 and the slide 703. The arrangement of the atomizing nozzles located at the lower side of the filling layer and the upper side of the top shell 702 can be an annular arrangement, so as to facilitate the treatment of the exhaust gas discharged from the gap. The diameter value of the bottom surface of the top shell 702 is greater than the maximum diameter value of the outer wall of the slide 703. When the exhaust gas is treated, the exhaust gas and the treated water condense at the upper end of the top shell 702 and flow along the top shell 70 2, the inclined surface at the upper end drips to the outside of the slide 703. By making the bottom surface diameter of the top shell 702 larger, the combined water flow of the exhaust gas and the treated water can be reduced from the middle of the slide 703 to the circulating water pool, thereby increasing the circulatory time of the single injection water flow. The top shell 702 is connected to the inside of the motor 15, and the power output end of the motor 15 is connected to the shaft 8. The top shell 702 is sealed and wrapped around the motor 15 to prevent the atomized water vapor from contacting the motor 15. At the same time, when the atomized water vapor flows on the surface of the top shell 702, the top shell 702 can be cooled to ensure the stable operation of the motor 15. The adjusting component 13 includes a support frame 1301, a retaining ring 1302, a connecting frame 1303, a tension spring 1304 and a rotating frame 1305. The support The support frame 1301 is connected to the outer surface of the shaft rod 8, and the support frame 1301 is located at the lower side of the fan blade 9, the support frame 1301 is rotatably connected to the shaft rod 8, the outer end of the support frame 1301 is fixedly connected to the slide 703, the retaining ring 1302 is connected to the lower side of the support frame 1301, the retaining ring 1302 is slidably connected to the support frame 1301, the connecting frame 1303 is connected to the lower end of the retaining ring 1302, the end of the connecting frame 1303 away from the shaft rod 8 is connected to the inner wall of the baffle 11, the connecting frame 1303 is fixedly connected to the baffle 11, the upper and lower ends of the tension spring 1304 are respectively connected to the support frame 1301 and the connecting frame 1303, and then the tension provided by the tension spring 1304 will be transmitted to the baffle 11 through the connecting frame 1303 The baffle plate 1301 is moved upward, thereby driving the stripping assembly 10 to move upward. The tension spring 1304 is located on the inner side of the baffle ring 1302. When the shaft rod 8 rotates, it will not drive the support frame 1301 and the connecting frame 1303 to rotate. The rotating frame 1305 is connected to the lower side of the connecting frame 1303. The rotating frame 1305 includes a frame body 13051, a rectangular block 13052 and a rectangular groove 13053. The frame body 13051 is rotatably connected to the lower side of the connecting frame 1303. The distance between the frame body 13051 and the connecting frame 1303 is fixed. The rectangular block 13052 is connected to the inner wall of the frame body 13051. The rectangular groove 13053 is arranged on the lower side of the circumference of the shaft rod 8. The rectangular block 13052 is adapted to be snap-fitted with the rectangular groove 13053.By setting the rectangular block 13052 and the rectangular groove 13053, the shaft 8 can drive the frame 13051 to rotate when it rotates. The scraper 14 is connected to the end of the frame 13051 away from the shaft 8. The rotation track of the scraper 14 is in contact with the lower slope of the baffle 11. One end of the scraper 14 is inclined, and the inclined surface of the scraper 14 is arranged in the positive direction of the rotation direction of the scraper 14. The scraper 14 extends to the upper end of the collection frame 16.

[0042] Through the above scheme, the top shell 702 is rotatably connected to the shaft 8, and then when the exhaust gas is injected, the exhaust gas is affected by the baffle 11, and gathers close to the shaft 8, and drives the fan blades 9 to rotate. The rotation of the fan blades 9 drives the shaft 8 to rotate. The shaft 8 drives the scraper 14 to rotate through the frame 13051, scraping the lower inclined surface of the baffle 11, effectively removing the exhaust gas remaining on the surface of the baffle 11.

[0043] As an embodiment of the present invention, refer to Figure 5 , Figure 6 and Figure 8The stripping assembly 10 includes a collar 1001, a mounting hole 1002, a thrust spring 1003, a top ring 1004 and a stopper 1005. The collar 1001 is connected to the outer wall of the slide 703, and the inner wall of the collar 1001 is slidably connected to the outer wall of the slide 703. The mounting hole 1002 is connected to the upper end of the collar 1001 in an array, and the mounting hole 1002 is cylindrical. The lower end of the thrust spring 1003 is connected to the mounting hole 1002, and the top ring 1004 is connected to the upper end of the thrust spring 1003. The upper end of the filter membrane 12 is connected to the top ring 1004. When the top ring 1004 is fitted with the sleeve ring 1001, the thrust spring 1003 is in a contracted state, the stopper 1005 is arranged at the lower end of the top ring 1004, and the roughness of the outer surface of the slide 703 gradually increases from bottom to top, so that the upward movement speed of the sleeve ring 1001 and the top ring 1004 is affected by the roughness of the outer surface of the slide 703. As the upward movement distance speed gradually increases, the top ring 1004 is located on the upper side of the sleeve ring 1001 and has a smaller thickness, so that the friction between the top ring 1004 and the outer wall of the slide 703 is smaller, so that the upward movement speed of the top ring 1004 is faster than that of the sleeve ring 1001. The speed of movement is fast, the limiting member 1005 includes a spring plate 10051, a buckle 10052, a slot 10053 and a limiting block 10054, the spring plate 10051 array is connected to the lower end of the top ring 1004, the spring plate 10051 can be deformed, the buckle 10052 is connected to the lower end of the spring plate 10051, the slot 10053 array is opened at the upper end of the collar 1001, the spring plate 10051 carries the buckle 10052 and is engaged with the slot 10053, there is a gap between the end of the spring plate 10051 away from the shaft 8 and the slot 10053, the limiting member 10054 is provided with a plurality of spring plates 10051, and the spring plate 10051 is provided with a plurality of spring plates 10051, and the plurality of spring plates 10051 are ... The block 10054 array is connected to the outer wall of the slide 703. When the ring 1001 carries the top ring 1004 downward, the buckle 10052 will contact the limit block 10054. The longitudinal section of the buckle 10052 is a right-angled trapezoid. The moving trajectory of the inclined surface of the buckle 10052 contacts the limit block 10054. When the inclined surface of the buckle 10052 contacts the limit block 10054, the spring plate 10051 will bend, thereby separating the buckle 10052 from the slot 10053, and the thrust spring 1003 pushes the top ring 1004 to separate from the ring 1001.

[0044] By setting the stripping assembly 10, the filter membrane 12 can be stretched straight to remove impurities on the surface of the filter membrane 12. As the combined water flow flows on the surface of the filter membrane 12, the impurities in the combined water flow will remain on the surface of the filter membrane 12 and accumulate on the surface of the filter membrane 12. As time goes by, the surface of the filter membrane 12 will be crusted and hardened. As the impurities accumulate, the weight of the baffle 11 increases. At this time, the baffle 11 moves downward. As the baffle 11 moves downward, the buckle 10052 will gradually approach the limit block 10054. When the inclined surface of the buckle 10052 contacts the limit block 10054, the buckle 1 0052 will separate from the slot 10053, so that the ring 1001 can be separated from the top ring 1004. Under the action of the thrust spring 1003, the top ring 1004 is separated from the ring 1001. Since the lower end of the filter membrane 12 is connected to the outer ring of the baffle 11, and the upper end of the filter membrane 12 is connected to the top ring 1004, the upward movement of the top ring 1004 will tighten the filter membrane 12. At this time, the impurities solidified on the surface of the filter membrane 12 are separated from the filter membrane 12. At the same time, due to the upward movement of the top ring 1004, the inclination angle of the filter membrane 12 is increased, and the impurities are easily separated from the surface of the filter membrane 12.

[0045] As an embodiment of the present invention, refer to Figure 6 , Figure 7 and Figure 8The baffle 11 includes a plate body 1101, a through hole 1103 and a notch 1104. The plate body 1101 is connected to the lower end of the collar 1001. The plate body 1101 is fixedly connected to the collar 1001. The through holes 1103 and the notch 1104 are arranged in an array on the surface of the plate body 1101. The notch 1104 is located at the periphery of the through hole 1103. The plate body 1101 is in a trumpet shape with a small top and a large bottom. When the exhaust gas flows, it will gradually gather at the lower slope of the plate body 1101, and the flow rate will be accelerated. The through hole 1103 is opened on the surface of the plate body 1101. When the exhaust gas flows, suction will be generated at the through hole 1103, so that the through hole 1103 generates suction on the filter membrane 12, thereby accelerating the filtration speed of the combined water flow. The plate body 11 01 is chamfered at the outer edge to facilitate the installation of the filter membrane 12. The diameter of the through hole 1103 gradually increases from bottom to top. As the exhaust gas moves upward, the diameter of the lower inclined surface of the plate body 1101 gradually decreases, and then the speed of the airflow gradually increases. By increasing the diameter of the through hole 1103, the filtration speed on the upper side of the lower inclined surface of the plate body 1101 is accelerated. The filter membrane 12 includes a contraction section 1201 and a buffer section 1202. The upper end of the contraction section 1201 is connected to the outer surface of the top ring 1004, and the buffer section 1202 is connected to the lower side of the contraction section 1201. The lower end of the buffer section 1202 is connected to the outer ring of the plate body 1101. The filter membrane 12 is made of nylon material. The nylon filter membrane 12 is elastic and can pass through The filter membrane 12 is divided into two ends, namely, a contraction section 1201 and a buffer section 1202, and the diameter of the contraction section 1201 is made smaller than the outer diameter of the slide 703, so that the contraction section 1201 can keep fitting with the slide 703, and the filter membrane 12 of the buffer section 1202 keeps the same diameter up and down, and the buffer section 1202 connected to the contraction section 1201 is affected by the contraction section 1201 to produce wrinkles, and the diameter of the buffer section 1202 is set to be larger than the radius of the plate body 1101 and smaller than the diameter of the plate body 1101. When installing the filter membrane 12, it is necessary to open the contraction section 1201 first and put it on the surface of the plate body 1101 from bottom to top. After the putting is completed, the upper end of the contraction section 1201 is fixed to the retaining ring 1302, and the lower end of the buffer section 1202 It is fixed to the baffle 11. At this time, due to the small diameter of the buffer section 1202, the buffer section 1202 is fully opened at the position near the outer side of the upper inclined surface of the plate body 1101, and an unfolded deformation occurs. At the position near the inner side of the upper inclined surface of the plate body 1101, affected by the contraction section 1201, the buffer section 1202 forms folds. When installing the filter membrane 12, the folds need to be overlapped and stacked. At this time, the expanded filter membrane 12 is affected by the tension and the aperture is enlarged, thereby accelerating the seepage speed of the water flow. At this time, the water flow quickly seeps out from the notch 1104 to the lower inclined surface of the plate body 1101, and affected by the folds, the filtering effect of the filter membrane 12 on the combined water flow is enhanced, and the water flow in the inner circle of the plate body 1101 is affected by the aperture of the through hole 1103 and the exhaust gas flow rate.The speed of mixed water flow seepage is accelerated. At this time, the pleated section can play a good filtering effect on the mixed water flow. The angle between the longitudinal section of the plate body 1101 and the horizontal plane is less than 5°, so when the filter membrane 12 is attached to the upper inclined surface of the plate body 1101, the impact force of the combined water flow is weak, which is convenient for the filter membrane 12 to intercept impurities. The top shell 702 is conical, and the angle between the longitudinal section of the top shell 702 and the horizontal plane is greater than 25°. The inclination angle of the top shell 702 is increased, and the combined water flow on the top shell 702 surface will flow quickly, reducing the accumulation of impurities on the upper surface of the top shell 702. The inner wall of the tower body 1 is connected to the collecting rack 16. The lower end of the collecting rack 16 is provided with a flow hole 1601. The setting of the flow hole 1601 facilitates the flow of water in the agglomerated impurities. The diameter of the inner wall of the collecting rack 16 is greater than the diameter of the outer wall of the notch 1104. When the water flow is discharged, the water flow will not flow into the collecting rack 16 and contact the agglomerated impurities, effectively ensuring the filtering effect of the water flow.

[0046] By setting the filter membrane 12, a pleated surface is formed on the upper side of the upper slope of the plate body 1101, thereby improving the purification effect of the combined water flow. At the same time, by setting the collecting rack 16, the agglomerated impurities can be collected, so that the impurities are accumulated in the collecting rack 16, avoiding the contact between the impurities and the water flow in the circulating water tank 2. By setting the baffle 11, a through hole 1103 is opened on the surface of the plate body 1101, thereby facilitating the water flow to flow from the upper slope of the plate body 1101 to the lower slope, and then merge into the circulating water tank 2. At the same time, the exhaust gas is gathered on the lower slope of the plate body 1101 to form an airflow. When the airflow flows on the lower slope of the plate body 1101, it will form suction on the through hole 1103, so that the combined water on the upper slope of the plate body 1101 is accelerated to flow to the lower slope of the plate body 1101. The water flow will contact the exhaust gas and perform initial filtration on the exhaust gas. However, since the water flow contains less reagents, the removal of impurities in the exhaust gas is less.

[0047] In order to prolong the flow time of the exhaust gas on the surface of the baffle 11, so as to improve the filtering effect of the exhaust gas, and thus make the exhaust gas flow direction gather first and then diffuse, specifically, by setting the motor 15, the motor 15 drives the fan blades 9 to rotate through the shaft 8 to generate an airflow flowing toward the axial surface, so that the airflow on the lower side of the baffle 11 is gathered toward the center along the lower inclined surface of the baffle 11, and then diffused outward on the upper inclined surface of the baffle 11 under the action of the fan blades 9. At this time, the exhaust gas is neutralized by the water flow sprayed by the atomizing nozzle, and flows on the filter membrane 12 on the upper inclined surface of the baffle 11. The water flow precipitates from the surface of the filter membrane 12 to the upper inclined surface of the baffle 11, and flows along the through hole 1103 to the lower inclined surface of the baffle 11. At this time, crystals condense on the filter membrane 12;

[0048] In order to ensure the filtering effect, after the crystals accumulate to a certain extent, the crystals need to be peeled off. The accumulation of crystals will increase the weight, and the weight will press the baffle 11 downward, so that the top ring 1004 and the sleeve ring 1001 are separated at the specified position, thereby achieving the straightening of the filter membrane 12. Specifically, when the crystals gradually accumulate, the weight of the baffle 11 increases, the baffle 11 moves downward, and the baffle 11 pulls the tension spring 1304 through the connecting frame 1303 to open. As the baffle 11 moves downward, the buckle 10052 The top ring 1004 contacts the stopper 10054, so that the buckle 10052 is separated from the slot 10053, and then the top ring 1004 moves upward under the action of the thrust spring 1003, and one end of the filter membrane 12 is connected to the top ring 1004, and the other end of the filter membrane 12 is connected to the lower end of the plate body 1101. At this time, the position of the plate body 1101 is fixed, and the top ring 1004 moves, thereby straightening the filter membrane 12, so that the crystals are separated, and at the same time, the tilt angle of the straightened filter membrane 12 is increased, so that the crystals flow into the collection rack 16;

[0049] When the exhaust gas flows on the lower slope of the baffle 11, it will condense on the lower slope of the baffle 11, causing crystals to appear on the lower slope of the baffle 11. However, since the water flow on the lower slope of the baffle 11 contains less medicine, the amount of crystals is small, and the scraper 14 is driven to rotate through the frame 13051, and then the lower slope of the baffle 11 is scraped to achieve the purpose of removing the crystals. Specifically, when the shaft 8 rotates, the rectangular block 13052 is driven to rotate through the rectangular groove 13053, and the rectangular block 13052 drives the frame 13051 to rotate, and the frame 13051 drives the scraper 14 to rotate to clean the lower slope of the baffle 11. At the same time, one end of the scraper 14 is inclined, and impurities will accumulate in the gap between the scraper 14 slope and the baffle 11 during the scraping process, and flow along the gap to the collection frame 16, thereby ensuring the water quality in the circulating water tank 2;

[0050] In order to ensure that the scraper 14 fits the lower inclined surface of the baffle 11, a frame 13051 that can move up and down is provided. At the same time, in order to prevent the baffle 11 from moving downward to form pressure on the scraper 14, which makes it difficult for the scraper 14 to rotate, the frame 13051 is connected to the connecting frame 1303, the connecting frame 1303 is connected to the baffle 11, and the connecting frame 1303 is set as a force-bearing bracket to ensure the stable rotation of the baffle 11.

[0051] After filtering for a certain period of time, the impurities in the collecting rack 16 are cleaned through the window.

[0052] Although the embodiments of the present invention have been described, it will be apparent to those skilled in the art that changes and modifications may be made to the embodiments to obtain other effects with an understanding of the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An industrial waste gas washing spray tower, comprising a tower body (1), a circulating water tank (2), a water spray pipe (3), an air pipe (4), a fan (5) and a discharge pipe (6), wherein an air inlet is provided on the left side of the tower body (1), and the characteristics are: The tower (1) further comprises a base frame (7), an axle (8), a fan blade (9), a stripping assembly (10), a baffle (11), a filter membrane (12), an adjustment assembly (13) and a scraper (14); the base frame (7) is connected to the inner wall of the tower body (1); the axle (8) is mounted on the base frame (7); the fan blade (9) array is connected to the outer surface of the axle (8); the stripping assembly (10) is connected to the outer side of the base frame (7); the baffle (11) is connected to the lower end of the stripping assembly (10); the lower end of the filter membrane (12) is connected to the outer periphery of the upper inclined surface of the baffle (11); The adjusting component (13) is connected to the lower side of the shaft (8), and the scraper (14) is connected to the adjusting component (13). When the weight of the filter membrane (12) changes, the baffle (11) moves up and down along the surface of the base frame (7). When the baffle (11) moves, the adjusting component (13) drives the scraper (14) to rotate in contact with the lower inclined surface of the baffle (11). When the weight of the filter membrane (12) increases to a specified value, the stripping component (10) tightens the filter membrane (12). When the weight of the filter membrane (12) decreases to a specified value, the adjusting component (13) drives the baffle (11) to reset.

2. The industrial waste gas washing spray tower according to claim 1, characterized in that: The base frame (7) comprises a fixed rod (701), a top shell (702) and a slide (703); the fixed rod (701) is connected to the inner wall of the tower body (1); the top shell (702) and the slide (703) are respectively connected to the upper and lower sides of an end of the fixed rod (701) away from the tower body (1); the diameter of the bottom surface of the top shell (702) is greater than the maximum diameter of the outer wall of the slide (703); the interior of the top shell (702) is connected to a motor (15), and the power output end of the motor (15) is connected to the shaft (8).

3. The industrial waste gas washing spray tower according to claim 2, characterized in that: The adjustment component (13) comprises a support frame (1301), a retaining ring (1302), a connecting frame (1303), a tension spring (1304) and a rotating frame (1305), wherein the support frame (1301) is connected to the outer surface of the shaft (8), the retaining ring (1302) is connected to the lower side of the support frame (1301), the connecting frame (1303) is connected to the lower end of the retaining ring (1302), the end of the connecting frame (1303) away from the shaft (8) is connected to the inner wall of the baffle (11), the upper and lower ends of the tension spring (1304) are respectively connected to the support frame (1301) and the connecting frame (1303), and the rotating frame (1305) is connected to the lower side of the connecting frame (1303).

4. The industrial waste gas washing spray tower according to claim 3, characterized in that: The rotating frame (1305) comprises a frame body (13051), a rectangular block (13052) and a rectangular groove (13053); the frame body (13051) is rotatably connected to the lower side of the connecting frame (1303); the rectangular block (13052) is connected to the inner wall of the frame body (13051); the rectangular groove (13053) is arranged on the lower side of the circumference of the shaft rod (8); the rectangular block (13052) and the rectangular groove (13053) are adapted to be snap-fitted; the scraper (14) is connected to one end of the frame body (13051) away from the shaft rod (8); one end of the scraper (14) is inclined.

5. The industrial waste gas washing spray tower according to claim 4, characterized in that: The stripping assembly (10) comprises a collar (1001), a mounting hole (1002), a thrust spring (1003), a top ring (1004) and a stopper (1005); the collar (1001) is connected to the outer wall of the slide (703); the mounting hole (1002) array is connected to the upper end of the collar (1001); the lower end of the thrust spring (1003) is connected to the mounting hole (1002); the top ring (1004) is connected to the upper end of the thrust spring (1003); the upper end of the filter membrane (12) is connected to the top ring (1004); the stopper (1005) is arranged at the lower end of the top ring (1004); and the roughness of the outer surface of the slide (703) gradually increases from bottom to top.

6. The industrial waste gas washing spray tower according to claim 5, characterized in that: The limiting member (1005) comprises a spring plate (10051), a buckle (10052), a slot (10053) and a limiting block (10054); the spring plate (10051) is connected in array to the lower end of the top ring (1004); the buckle (10052) is connected in array to the lower end of the spring plate (10051); the slot (10053) is arranged in array to the upper end of the sleeve ring (1001); the limiting block (10054) is connected in array to the outer wall of the slide (703); the longitudinal section of the buckle (10052) is a right-angled trapezoid; the movable track of the inclined surface of the buckle (10052) contacts the limiting block (10054).

7. The industrial waste gas washing spray tower according to claim 6, characterized in that: The baffle (11) comprises a plate body (1101), a through hole (1103) and a notch (1104); the plate body (1101) is connected to the lower end of the collar (1001); the through hole (1103) and the notch (1104) are arranged in an array on the surface of the plate body (1101); the notch (1104) is located at the periphery of the through hole (1103); the plate body (1101) is in the shape of a trumpet that is smaller at the top and larger at the bottom; the outer edge of the plate body (1101) is chamfered; and the diameter of the through hole (1103) gradually increases from bottom to top.

8. The industrial waste gas washing spray tower according to claim 7, characterized in that: The filter membrane (12) comprises a contraction section (1201) and a buffer section (1202), the upper end of the contraction section (1201) is connected to the outer surface of the top ring (1004), the buffer section (1202) is connected to the lower side of the contraction section (1201), and the lower end of the buffer section (1202) is connected to the outer ring of the plate body (1101), and the filter membrane (12) is made of nylon.

9. The industrial waste gas washing spray tower according to claim 7, characterized in that: The included angle between the longitudinal section of the plate body (1101) and the horizontal plane is less than 5°, the top shell (702) is conical, and the included angle between the longitudinal section of the top shell (702) and the horizontal plane is greater than 25°.

10. The industrial waste gas washing spray tower according to claim 7, characterized in that: The inner wall of the tower body (1) is connected to a collecting frame (16), a flow hole (1601) is provided at the lower end of the collecting frame (16), the diameter of the inner wall of the collecting frame (16) is greater than the diameter of the outer wall of the notch (1104), and the scraper (14) extends to the upper end of the collecting frame (16).

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