An assembled water washing device for removing polyphosphate

Abstract

The present invention relates to the field of phosphine water washing, and specifically to an assembled water washing device for removing polyphosphorus, comprising a shell and an air separation unit; the air separation unit comprises a plurality of vertically arranged air outlet pipes, the plurality of air outlet pipes being evenly distributed in the shell around the axis of the shell and rotating synchronously around the axis of the shell, an air outlet being provided on the upper side wall of each air outlet pipe, a scraping block being slidingly provided in the air outlet pipe along the vertical direction, the scraping block being always located below the air outlet, a rotating disk being provided below the air outlet pipe and rotating around the axis of the shell, the axis of the rotating disk being colinear with the axis of the shell, a plurality of protruding blocks being evenly fixedly provided on the rotating disk around the axis of the rotating disk, the protruding blocks being able to push the scraping blocks, a locking unit being provided in the rotating disk, the rotating disk being locked to the bottom of the shell or the air outlet pipe through the locking unit. The present invention enables the air separation unit to clean itself regularly, thereby extending the service life of the air separation unit.

Description

Technical Field

[0001] The present invention relates to the field of phosphine water washing, and specifically relates to an assembled water washing device for removing polyphosphorus. Background Art

[0002] In the process of preparing phosphine, one method is to prepare crude phosphine by wet method using yellow phosphorus, sodium hydroxide, and calcium hydroxide. The crude phosphine contains a certain amount of diphosphine and polyphosphorus. A water washing device and a low-temperature water removal device can be used to separate polyphosphorus and diphosphine in the phosphine gas respectively. The water washing device mainly removes polyphosphorus substances. The water washing device is filled with liquid. The gas containing polyphosphorus is introduced into the water washing device from the bottom of the water washing device. After being washed by the water washing device, the polyphosphorus is removed by the water washing device. When washing with water, the gas needs to be dispersed in each part of the water washing device.

[0003] Chinese Patent Publication No. CN221085235U discloses a microbubble generating device, which is characterized in that: it includes a mesh cylinder, an air inlet pipe is arranged at the upper part of the mesh cylinder, the bottom of the mesh cylinder is hermetically arranged, a microbubble generating cylinder is arranged in the inner cavity of the mesh cylinder, the upper part of the microbubble generating cylinder is rotationally communicated with the air inlet pipe, a vortex air wheel is arranged in the middle of the inner cavity of the microbubble generating cylinder, the vortex air wheel is fixedly connected with the inner wall of the microbubble generating cylinder, a baffle is arranged below the vortex air wheel, the baffle is hermetically and fixedly arranged with the inner wall of the microbubble generating cylinder, and a microbubble generator is arranged at the bottom of the baffle, and the microbubble generator is communicated with the inner cavity of the microbubble generating cylinder.

[0004] The above solution is a bubble generating device, which improves the contact area between air and water during water washing. However, polyphosphorus has a certain adhesiveness. Although the existing bubble generating device can disperse air, it is extremely easy to be blocked by substances such as polyphosphorus during use, resulting in frequent shutdown cleaning of the microbubble generating device during water washing. If the bubble generating device is not used, the contact area between the liquid and air in the water washing device is small, resulting in poor water washing effect. Summary of the Invention

[0005] In view of the above problems, a prefabricated water washing device for removing polyphosphorus is provided. By arranging a scraping block that can slide vertically in the air outlet pipe, the scraping block can scrape off the polyphosphorus, impurities, etc. attached to the inner wall of the air outlet pipe during the rising process. When the scraping block rises to the highest position, the scraping block pushes the polyphosphorus and impurities out from the air outlet of the air outlet pipe. In order to drive the scraping block to lift and lower in the air outlet pipe, a rotating disk is arranged at the lower part of the air outlet pipe, and a plurality of protruding blocks are evenly and fixedly arranged on the rotating disk. A locking unit is also arranged on the rotating disk. By locking the air outlet pipe and the outer shell respectively through the locking unit, the air distribution unit is realized to switch between the air distribution mode and the cleaning mode. In the air distribution mode, the locking unit locks the rotating disk and the air outlet pipe. When the air outlet pipe rotates around the axis of the outer shell, the rotating disk rotates synchronously with the air outlet pipe, and the rotating disk and the air outlet pipe are relatively stationary. In the cleaning mode, the locking unit locks the rotating disk to the bottom of the outer shell, and the rotating disk rotates relative to the rotating air outlet pipe. In this way, the protruding blocks arranged on the rotating disk can push up the scraping block, and thus the cleaning work of the air outlet pipe is completed.

[0006] To solve the problems of the prior art, the present invention provides a prefabricated water washing device for removing polyphosphorus, including an outer shell and an air distribution unit arranged inside the outer shell; the outer shell is of a cylindrical structure, and the air distribution unit includes a plurality of vertically arranged air outlet pipes. The plurality of air outlet pipes are evenly distributed inside the outer shell around the axis of the outer shell and rotate synchronously around the axis of the outer shell. An air outlet is opened on the upper side wall of each air outlet pipe. A scraping block is slidably arranged vertically in the air outlet pipe, and the scraping block is always located below the air outlet. A rotating disk is arranged to rotate around the axis of the outer shell below the air outlet pipe, and the axis of the rotating disk is collinear with the axis of the outer shell. A plurality of protruding blocks are evenly and fixedly arranged on the rotating disk around the axis of the rotating disk, and the protruding blocks can push the scraping block. A locking unit is arranged inside the rotating disk, and the rotating disk is locked to the bottom of the outer shell or the air outlet pipe through the locking unit. When the rotating disk is locked to the air outlet pipe, the rotating disk rotates synchronously with the air outlet pipe. When the rotating disk is locked to the bottom of the outer shell, the rotating disk rotates relative to the air outlet pipe.

[0007] Preferably, the locking unit includes a locking block that moves vertically in the rotating disk. The locking block can be magnetically attracted. A first electromagnet and a second electromagnet are respectively arranged above and below the locking block. A locking rod is vertically and fixedly arranged on the upper and lower parts of the locking block respectively. A first locking groove is vertically opened on the air outlet pipe, and a second locking groove is vertically opened at the bottom of the outer shell. When the air distribution unit is in the air distribution mode, the locking rod located on the upper part of the locking block is inserted and matched with the first locking groove. When the air distribution unit is in the cleaning mode, the locking rod located on the lower part of the locking block is inserted and matched with the second locking groove.

[0008] Preferably, a main pipe is rotatably arranged in the housing along the axis of the housing. A branch air pipe is arranged at the bottom of the main pipe in the radial direction of the housing. There are multiple branch air pipes, and the multiple branch air pipes are arranged on the main pipe around the axis of the housing. A one-way valve is arranged on the main pipe, and the air outlet pipe is arranged at one end of the branch air pipe away from the main pipe.

[0009] Preferably, a first toothed ring is fixedly arranged around the main pipe. A first gear is rotatably arranged on one side of the first toothed ring. A first rotary driver for driving the first gear to rotate is arranged at the end of the first gear.

[0010] Preferably, a lifting plate is movably arranged vertically on the air outlet. A lifting rod is vertically and fixedly arranged on the upper part of the lifting plate. The lifting rod vertically penetrates the upper part of the air outlet pipe and is slidably matched with the upper part of the air outlet pipe. A first gap exists between the lifting plate and the upper part of the air outlet pipe. A first spring is vertically arranged in the first gap, and the two ends of the first spring are respectively fixedly connected to the lifting plate and the upper part of the air outlet pipe.

[0011] Preferably, an annular membrane is sleeved around the inner wall of the branch air pipe. An annular cavity is formed between the annular membrane and the inner wall of the branch air pipe. A circular plate is rotatably arranged below the branch air pipe around the axis of the housing. An inflatable shell is sleeved below the circular plate. The inflatable shell and the circular plate form an inflatable cavity. The inflatable cavity is communicated with the annular cavity. An inflation unit is arranged at the lower part of the inflatable cavity.

[0012] Preferably, the inflation unit includes an inflation disc arranged at the bottom of the housing. An inflation groove is formed in the inflation disc in the radial direction of the inflation disc. An inflation block is slidably arranged in the inflation groove. The inflation groove is communicated with the inflatable cavity. When the inflation block moves towards the center of the inflation disc in the inflation groove, the gas in the inflation groove is filled into the inflatable cavity.

[0013] Preferably, an air intake unit is arranged at the upper part of the main pipe. The air intake unit includes an air intake ring rotatably arranged above the main pipe. A plurality of pressing grooves are formed in the peripheral wall of the air intake ring. The extending direction of the pressing grooves is parallel to the radial direction of the air intake ring. A pressing component is slidably arranged in the pressing grooves along the extending direction of the pressing grooves. When the pressing grooves are communicated with the main pipe, the pressing component slides to one end of the pressing groove away from the center of the air intake ring. An air intake shell is sleeved outside the air intake ring. An air intake end and an air outlet end are respectively arranged at the upper part and the lower part of the air intake shell. The air outlet end of the air intake shell is communicated with the main pipe. The pressing grooves and the air intake shell form an air intake cavity.

[0014] Preferably, the pressing component includes a support shaft arranged in the inner ring of the air intake ring along the axis of the air intake ring. The support shaft is located below the axis of the air intake ring. A collar is rotatably sleeved outside the support shaft. A pressing block is slidably arranged in the pressing groove along the extending direction of the pressing groove. A second connecting rod is arranged between the pressing block and the collar. The two ends of the second connecting rod are respectively hinged to the pressing block and the collar.

[0015] Preferably, a groove is formed at the end of the pressing block, and a sliding plate is slidably arranged in the groove along the moving direction of the pressing block. A second gap is formed between the sliding plate and the bottom of the groove, and a second spring is arranged in the second gap along the extending direction of the groove. The two ends of the second spring are respectively fixedly connected with the bottom of the groove and the sliding plate.

[0016] The beneficial effects of the present invention compared with the prior art are as follows: 1. By arranging a scraping block that can slide vertically in the air outlet pipe in the present invention, the scraping block can scrape off polyphosphorus, impurities, etc. attached to the inner wall of the air outlet pipe during the rising process. When the scraping block rises to the highest position, the scraping block pushes the polyphosphorus and impurities out of the air outlet of the air outlet pipe. In order to drive the scraping block to lift and lower in the air outlet pipe, a rotating disk is arranged at the lower part of the air outlet pipe, and a plurality of convex blocks are evenly and fixedly arranged on the rotating disk. A locking unit is also arranged on the rotating disk. By respectively locking the air outlet pipe and the outer shell through the locking unit, the air distribution unit is realized to switch between the air distribution mode and the cleaning mode. In the air distribution mode, the locking unit locks the rotating disk and the air outlet pipe. When the air outlet pipe rotates around the axis of the outer shell, the rotating disk rotates synchronously with the air outlet pipe, and the rotating disk and the air outlet pipe are relatively stationary. In the cleaning mode, the locking unit locks the rotating disk and the bottom of the outer shell, and the rotating disk rotates relative to the rotating air outlet pipe. In this way, the convex blocks arranged on the rotating disk can lift the scraping block, and thus the cleaning work of the air outlet pipe is completed. The air distribution unit can regularly clean itself, extending the service life of the air distribution unit.

[0017] 2. By arranging a lifting plate at the air outlet, under the action of the scraping block, the scraping block drives the lifting plate to rise. In this way, the air outlet gradually becomes larger, so that during the process of the scraping block scraping off polyphosphorus and impurities, the polyphosphorus and impurities can be better discharged through the air outlet. After the cleaning is completed, the scraping block descends, and the lifting plate descends synchronously, and the air outlet shrinks, ensuring that when the air distribution unit is in the air distribution mode, the bubbles discharged from the air outlet can be smaller, ensuring that the bubbles after air distribution by the air distribution unit in the air distribution mode are smaller, and in the cleaning mode, the polyphosphorus and impurities cleaned out are more easily discharged. Description of the Drawings

[0018] Figure 1 is a three-dimensional schematic diagram of an assembled water washing device for removing polyphosphorus according to the present invention Figure 1 。

[0019] Figure 2 is a three-dimensional schematic diagram of an assembled water washing device for removing polyphosphorus according to the present invention Figure 2 。

[0020] Figure 3 is an assembled water washing device for removing polyphosphorus according to the present invention Figure 2A local enlarged schematic diagram of point A in the middle.

[0021] Figure 4 It is a side view of an assembled water washing device for removing polyphosphate according to the present invention.

[0022] Figure 5 The invention is an assembled water washing device for removing polyphosphate Figure 4 Schematic cross-sectional view at the middle BB.

[0023] Figure 6 The present invention is a cutaway perspective schematic diagram of an assembled water washing device for removing polyphosphate.

[0024] Figure 7 The invention is an assembled water washing device for removing polyphosphate Figure 6 A partial enlarged schematic diagram of point C in the middle.

[0025] Figure 8 The invention is an assembled water washing device for removing polyphosphate Figure 6 A partial enlarged schematic diagram of point D in the middle.

[0026] Figure 9 The invention is an assembled water washing device for removing polyphosphate Figure 6 A partial enlarged schematic diagram of point E in the middle.

[0027] Figure 10 The invention is an assembled water washing device for removing polyphosphate Figure 6 A partial enlarged schematic diagram of point F in the middle.

[0028] Figure 11 The invention is an assembled water washing device for removing polyphosphate Figure 6 A local enlarged schematic diagram of point G in the middle.

[0029] Figure 12 It is a three-dimensional schematic diagram of an assembled water washing device for removing polyphosphate of the present invention with the outer shell removed.

[0030] The numbers in the figure are: 1. Housing; 2. Gas distribution unit; 21. Outlet pipe; 211. Air outlet; 212. Lifting plate; 213. Lifting rod; 214. First spring; 22. Scraping block; 23. Rotating disk; 231. Protruding block; 24. Locking unit; 241. Locking block; 2411. Locking rod; 242. First electromagnet; 243. Second electromagnet; 25. Main pipe; 251. First toothed ring; 252. First gear; 253. First rotary driver; 26. Branch pipe; 261. Annular membrane; 262. Circular plate; 263. Inflatable housing; 264. Inflation unit; 2641. Inflation disk; 2642. Inflation groove; 2643. Inflation block; 2644. Second toothed ring; 2645. First connecting rod; 2646. Second gear; 2647. Second rotary driver; 27. Check valve; 28. Intake unit; 281. Intake ring; 2811. Pressing groove; 282. Pressing component; 2821. Support shaft; 2822. Collar; 2823. Second connecting rod; 2824. Pressing block; 2825. Groove; 2826. Sliding plate; 2827. Second spring; 283. Intake housing; 284. Third toothed ring; 285. Third gear; 286. Third rotary driver. Detailed implementation manners

[0031] To further understand the features, technical means, specific purposes, and functions achieved by the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific implementation manners.

[0032] Refer to Figure 1 , Figure 2 , Figure 6 , Figure 9 and Figure 10 : An assembled water washing device for removing polyphosphorus, comprising a housing 1 and a gas distribution unit 2 arranged inside the housing 1; the housing 1 is a cylindrical structure, and the gas distribution unit 2 includes a plurality of vertically arranged outlet pipes 21. The plurality of outlet pipes 21 are evenly distributed inside the housing 1 around the axis of the housing 1 and rotate synchronously around the axis of the housing 1. An air outlet 211 is provided on the upper side wall of each outlet pipe 21. A scraping block 22 is slidably arranged vertically in the outlet pipe 21. The scraping block 22 is always located below the air outlet 211. A rotating disk 23 is rotatably arranged below the outlet pipe 21 around the axis of the housing 1. The axis of the rotating disk 23 is collinear with the axis of the housing 1. A plurality of protruding blocks 231 are evenly and fixedly arranged on the rotating disk 23 around the axis of the rotating disk 23. The protruding blocks 231 can push the scraping block 22. A locking unit 24 is arranged inside the rotating disk 23. The rotating disk 23 is locked with the bottom of the housing 1 or the outlet pipe 21 through the locking unit 24. When the rotating disk 23 is locked with the outlet pipe 21, the rotating disk 23 rotates synchronously with the outlet pipe 21. When the rotating disk 23 is locked with the bottom of the housing 1, the rotating disk 23 rotates relative to the outlet pipe 21.

[0033] In existing water washing devices, the principle is basically the same, that is, gas is introduced from the bottom of the water washing device, and the gas entering the water washing device contacts the liquid in the water washing device. During the contact process, the liquid in the water washing device adsorbs and removes the substances to be removed in the gas. The most crucial factor in this process is the contact area between the gas and the liquid in the water washing device. In unit time, the larger the contact area between the gas and the liquid, the better the reaction effect. Thus, it is necessary to set up a gas distribution unit 2 to conduct gas distribution treatment on the gas introduced into the water washing device. The most common gas distribution unit 2 is a bubble generator, which divides the gas into bubbles and gradually blows them into the water washing device. However, due to the certain adhesiveness of polyphosphorus, the bubble generator is prone to clogging after long-term use, resulting in the subsequent gas distribution process being unable to proceed smoothly. In the existing technology, the bubble generator does not have a self-cleaning function, leading to relatively high usage costs and maintenance costs.

[0034] To avoid the above situation, the gas distribution unit 2 is redesigned so that the gas distribution unit 2 has a self-cleaning function, and during the self-cleaning process, no manual intervention is required, nor is it necessary to disassemble the water washing device, which extends the service life of the gas distribution unit 2. The specific structure and working steps of the gas distribution unit 2 are as follows: The gas distribution unit 2 has a gas distribution mode and a cleaning mode. In the gas distribution mode, the gas outlet pipe 21 passes the gas containing polyphosphorus into the housing 1. There is a liquid for adsorbing polyphosphorus in the housing 1. Since there are multiple gas outlet pipes 21, when performing water washing, all the gas outlet pipes 21 simultaneously pass the gas containing polyphosphorus into the housing 1. The gas outlet 211 of the gas outlet pipe 21 is located below the liquid level in the housing 1, and the gas outlet pipes 21 are arranged around the axis of the housing 1. In this way, when the gas outlet pipes 21 discharge gas, they can inject the gas into the housing 1 more evenly. At this time, the rotating disk 23 is locked with the gas outlet pipe 21 through the locking unit 24. When the gas outlet pipe 21 rotates around the axis of the housing 1, the rotating disk 23 rotates synchronously with the gas outlet pipe 21. After using for a period of time, polyphosphorus and some impurities adhere to the inner wall of the gas outlet pipe 21. Thus, the gas distribution unit 2 switches from the gas distribution mode to the cleaning mode. First, the locking unit 24 provided on the rotating disk 23 unlocks the rotating disk 23 from the gas outlet pipe 21, and then the locking unit 24 descends and locks the rotating disk 23 with the bottom of the housing 1. At this time, the rotating disk 23 no longer rotates synchronously with the gas outlet pipe 21. When the gas outlet pipe 21 rotates around the axis of the housing 1, a relative rotation state is formed between the rotating disk 23 and the gas outlet pipe 21. Since a plurality of protruding blocks 231 are uniformly fixed on the upper part of the rotating disk 23, when the rotating disk 23 rotates, the protruding blocks 231 provided on the rotating disk 23 rotate synchronously with the rotating disk 23. When the protruding block 231 rotates past directly below the scraping block 22, the scraping block 22 is lifted by the protruding block 231. Under the action of the protruding block 231, the scraping block 22 rises in the vertical direction. During the rising process of the scraping block 22, substances such as polyphosphorus and impurities attached to the inner wall of the gas outlet pipe 21 are scraped off. The scraped polyphosphorus and impurities and other substances rise synchronously with the scraping block 22 and are discharged through the gas outlet 211. When the protruding block 231 on the rotating disk 23 completely passes the scraping block 22, the scraping block 22 descends and resets in the vertical direction. When the protruding block 231 passes the scraping block 22 again, the scraping block 22 rises again, repeating in a cycle. In this way, the cleaning work of the gas outlet pipe 21 is completed. It enables the gas distribution unit 2 to clean itself regularly and extends the service life of the gas distribution unit 2.

[0035] It should be noted that both the gas distribution mode and the cleaning mode of the gas distribution unit 2 operate according to the preset time, that is, the staff separately set the time of the two operating modes of the gas distribution unit 2. When the gas distribution unit 2 operates in the gas distribution mode until the specified time, it switches to the cleaning mode.

[0036] Refer to Figure 10: The locking unit 24 includes a locking block 241 movably arranged vertically in the rotating disc 23. The locking block 241 can be magnetically attracted. A first electromagnet 242 and a second electromagnet 243 are respectively arranged above and below the locking block 241. A locking rod 2411 is vertically and fixedly arranged on the upper and lower parts of the locking block 241 respectively. A first locking groove is vertically formed in the air outlet pipe 21, and a second locking groove is vertically formed in the bottom of the housing 1. When the gas distribution unit 2 is in the gas distribution mode, the locking rod 2411 located in the upper part of the locking block 241 is inserted and matched with the first locking groove. When the gas distribution unit 2 is in the cleaning mode, the locking rod 2411 located in the lower part of the locking block 241 is inserted and matched with the second locking groove.

[0037] When the gas distribution unit 2 is in the gas distribution mode, the first electromagnet 242 is energized and the second electromagnet 243 is de-energized. The first electromagnet 242 attracts the locking block 241, so that the locking block 241 drives the locking rod 2411 in its upper part to insert into the first locking groove. When the gas distribution unit 2 switches from the gas distribution mode to the cleaning mode, the first electromagnet 242 is de-energized and the second electromagnet 243 is energized. According to actual usage requirements, the second electromagnet 243 may not be provided, and the locking rod 2411 arranged in the lower part of the locking block 241 is inserted into the second locking groove by the self-weight of the locking block 241. However, after the second electromagnet 243 is provided, the locking block 241 can more stably drive the locking rod 2411 to insert into the second locking groove. It should be noted that when the gas distribution unit 2 is in the mode switching state, the air outlet pipe 21 does not rotate, and the projections of the first locking groove and the second locking groove in the vertical direction completely coincide. The position of the second locking groove arranged at the bottom of the housing 1 remains unchanged all the time. When the gas distribution unit 2 switches modes, the air outlet pipe 21 needs to rotate an integer number of turns around the housing 1 before it can stop.

[0038] Refer to Figure 5 : A main pipe 25 is rotatably arranged along the axis of the housing 1 in the housing 1. A gas distribution pipe 26 is arranged at the bottom of the main pipe 25 along the radial direction of the housing 1. There are a plurality of gas distribution pipes 26, and the plurality of gas distribution pipes 26 are arranged on the main pipe 25 around the axis of the housing 1. A one-way valve 27 is arranged on the main pipe 25. The air outlet pipe 21 is arranged at one end of the gas distribution pipe 26 away from the main pipe 25.

[0039] Refer to Figure 7 : A first toothed ring 251 is fixedly arranged around the main pipe 25. A first gear 252 is rotatably arranged on one side of the first toothed ring 251. A first rotary driver 253 for driving the first gear 252 to rotate is arranged at the end of the first gear 252.

[0040] The first rotary drive 253 is preferably a servo motor. The gas containing polyphosphorus is respectively introduced into each branch pipe 26 through the main pipe 25. Since the branch pipe 26 is communicated with the air outlet pipe 21, the gas containing polyphosphorus can be smoothly discharged through the air outlet pipe 21. The first rotary drive 253 drives the first toothed ring 251 to rotate through the first gear 252, so that the main pipe 25 rotates, and then drives the air outlet pipe 21 to rotate through the branch pipe 26. A one-way valve 27 is arranged on the main pipe 25, which can ensure that the gas containing polyphosphorus will not flow back after being discharged from the main pipe 25 into the branch pipe 26.

[0041] Refer to Figure 9 : A lifting plate 212 is movably arranged along the vertical direction on the air outlet 211. A lifting rod 213 is vertically and fixedly arranged on the upper part of the lifting plate 212. The lifting rod 213 vertically penetrates the upper part of the air outlet pipe 21 and is slidably matched with the upper part of the air outlet pipe 21. A first gap is formed between the lifting plate 212 and the upper part of the air outlet pipe 21. A first spring 214 is vertically arranged in the first gap. The two ends of the first spring 214 are respectively fixedly connected to the lifting plate 212 and the upper part of the air outlet pipe 21.

[0042] During the rising process of the scraping block 22, the polyphosphorus and impurities in the air outlet pipe 21 are scraped off by the scraping block 22 and then driven to rise and contact the lifting plate 212. At this time, the scraping block 22 has not risen to the highest position. As the air outlet pipe 21 rotates, the convex block 231 on the rotating disk 23 continues to lift the scraping block 22. The scraping block 22 first contacts the bottom of the lifting plate 212 and continues to drive the lifting plate 212 to rise. In this way, the air outlet 211 gradually becomes larger, so that during the process of the scraping block 22 scraping off the polyphosphorus and impurities, the polyphosphorus and impurities can be better discharged through the air outlet 211. After the cleaning is completed, the scraping block 22 descends, and the lifting plate 212 descends synchronously, and the air outlet 211 shrinks, ensuring that when the gas distribution unit 2 is in the gas distribution mode, the bubbles discharged from the air outlet 211 can be smaller, ensuring that the bubbles are smaller after gas distribution in the gas distribution mode of the gas distribution unit 2, and in the cleaning mode, the polyphosphorus and impurities cleaned out are easier to discharge.

[0043] Refer to Figure 6 and Figure 9 : An annular film 261 is sleeved around the inner wall of the branch pipe 26. An annular cavity is formed between the annular film 261 and the inner wall of the branch pipe 26. A circular plate 262 is rotatably arranged around the axis of the outer shell 1 below the branch pipe 26. An inflatable shell 263 is sleeved below the circular plate 262. The inflatable shell 263 and the circular plate 262 form an inflatable cavity. The inflatable cavity is communicated with the annular cavity. An inflating unit 264 is arranged at the lower part of the inflatable cavity.

[0044] Refer to Figure 3 、 Figure 11 and Figure 12: The inflation unit 264 includes an inflation disc 2641 disposed at the bottom of the housing 1. An inflation groove 2642 is formed in the inflation disc 2641 along the radial direction of the inflation disc 2641. An inflation block 2643 is slidably disposed in the inflation groove 2642. The inflation groove 2642 communicates with the inflation chamber. When the inflation block 2643 moves towards the center of the inflation disc 2641 in the inflation groove 2642, the gas in the inflation groove 2642 is filled into the inflation chamber.

[0045] A second toothed ring 2644 is rotatably disposed around the periphery of the inflation disc 2641. A first connecting rod 2645 is disposed between the second toothed ring 2644 and the inflation block 2643. The two ends of the first connecting rod 2645 are respectively hinged to the inflation block 2643 and the second toothed ring 2644. A second gear 2646 is engaged with one side of the second toothed ring 2644. A second rotary driver 2647 for driving the second gear 2646 to rotate is disposed at the end of the second gear 2646. The second rotary driver 2647 is preferably a servo motor. When inflation of the annular chamber is required, the second rotary driver 2647 drives the second toothed ring 2644 to rotate through the second gear 2646, and the first connecting rod 2645 pushes the inflation block 2643 to move in the inflation groove 2642. Thus, the air in the inflation groove 2642 rushes into the inflation chamber. Since the annular chamber communicates with the inflation chamber, inflation of the annular chamber starts, and the airflow flowing in the branch pipe 26 is squeezed, and the flow rate of the airflow is increased, so that the polyphosphorus and impurities attached to the annular film 261 are blown off.

[0046] Refer to Figure 2 、 Figure 4 and Figure 5 : An air intake unit 28 is disposed at the upper part of the main pipe 25. The air intake unit 28 includes an air intake ring 281 rotatably disposed above the main pipe 25. A plurality of pressing grooves 2811 are formed in the peripheral wall of the air intake ring 281. The extending direction of the pressing grooves 2811 is parallel to the radial direction of the air intake ring 281. A pressing assembly 282 is slidably disposed in the pressing grooves 2811 along the extending direction of the pressing grooves 2811. When the pressing grooves 2811 communicate with the main pipe 25, the pressing assembly 282 slides to the end of the pressing groove 2811 away from the center of the air intake ring 281. An air intake housing 283 is sleeved outside the air intake ring 281. An air intake end and an air outlet end are respectively disposed at the upper and lower parts of the air intake housing 283. The air outlet end of the air intake housing 283 communicates with the main pipe 25. The pressing grooves 2811 and the air intake housing 283 form an air intake chamber.

[0047] Refer to Figure 7 and Figure 8: The pressing assembly 282 includes a support shaft 2821 disposed in the inner ring of the intake ring 281 along the axis of the intake ring 281. The support shaft 2821 is located below the axis of the intake ring 281. A collar 2822 is rotatably sleeved outside the support shaft 2821. A pressing block 2824 is slidably disposed in the pressing groove 2811 along the extending direction of the pressing groove 2811. A second connecting rod 2823 is disposed between the pressing block 2824 and the collar 2822. Two ends of the second connecting rod 2823 are respectively hinged to the pressing block 2824 and the collar 2822.

[0048] Referring to Figure 7 and Figure 12 : A groove 2825 is formed at the end of the pressing block 2824. A sliding plate 2826 is slidably disposed in the groove 2825 along the moving direction of the pressing block 2824. A second gap exists between the sliding plate 2826 and the bottom of the groove 2825. A second spring 2827 is disposed in the second gap along the extending direction of the groove 2825. Two ends of the second spring 2827 are respectively fixedly connected to the bottom of the groove 2825 and the sliding plate 2826.

[0049] A third toothed ring 284 is fixedly disposed at the end of the intake ring 281. A third gear 285 is engaged with one side of the third toothed ring 284. A third rotary driver 286 for driving the third gear 285 to rotate is disposed at the end of the third gear 285. The third rotary driver 286 is preferably a servo motor. When the intake unit 28 operates, the third rotary driver 286 drives the third toothed ring 284 to rotate through the third gear 285. When the pressing groove 2811 communicates with the intake end of the intake housing 283, the pressing block 2824 is located at one end of the pressing groove 2811 close to the center of the intake ring 281. At this time, air is inhaled into the pressing groove 2811. Subsequently, the intake ring 281 rotates, and the intake ring 281 presses the pressing groove 2811. The pressure in the intake chamber formed between the pressing groove 2811 and the intake housing 283 gradually rises. The intake chamber reversely presses the sliding plate 2826 sliding in the groove 2825, and the second spring 2827 is gradually compressed. When the pressing groove 2811 communicates with the air outlet end of the inflating housing 263, the gas containing polyphosphorus stored in the groove 2825 is discharged into the main pipe 25. Through the sliding of the pressing block 2824, it is ensured that there is no residue of polyphosphorus and impurities in the pressing groove 2811.

[0050] Working principle: The gas distribution unit 2 has a gas distribution mode and a cleaning mode. In the gas distribution mode, the gas outlet pipe 21 introduces the gas containing polyphosphorus into the outer shell 1. The outer shell 1 is filled with a liquid for adsorbing polyphosphorus. Since there are multiple gas outlet pipes 21, when performing water washing, all the gas outlet pipes 21 introduce the gas containing polyphosphorus into the outer shell 1 at the same time. The gas outlet 211 of the gas outlet pipe 21 is located below the liquid level in the outer shell 1, and the gas outlet pipes 21 are arranged around the axis of the outer shell 1. In this way, when the gas outlet pipe 21 discharges gas, it can inject the gas into the outer shell 1 more evenly. At this time, the rotating disk 23 is locked with the gas outlet pipe 21 through the locking unit 24. When the gas outlet pipe 21 rotates around the axis of the outer shell 1, the rotating disk 23 rotates synchronously with the gas outlet pipe 21. After using for a period of time, polyphosphorus and some impurities adhere to the inner wall of the gas outlet pipe 21. In this way, the gas distribution unit 2 switches from the gas distribution mode to the cleaning mode. First, the locking unit 24 provided on the rotating disk 23 unlocks the rotating disk 23 from the gas outlet pipe 21, and then the locking unit 24 descends and locks the rotating disk 23 with the bottom of the outer shell 1. At this time, the rotating disk 23 no longer rotates synchronously with the gas outlet pipe 21. When the gas outlet pipe 21 rotates around the axis of the outer shell 1, a relative rotation state is formed between the rotating disk 23 and the gas outlet pipe 21. Since a plurality of protruding blocks 231 are uniformly fixed on the upper part of the rotating disk 23, when the rotating disk 23 rotates, the protruding blocks 231 provided on the rotating disk 23 rotate synchronously with the rotating disk 23. When the protruding block 231 rotates past directly below the scraping block 22, the scraping block 22 is lifted by the protruding block 231. The scraping block 22 rises in the vertical direction under the action of the protruding block 231. When the scraping block 22 rises, it scrapes off substances such as polyphosphorus and impurities adhering to the inner wall of the gas outlet pipe 21. The scraped polyphosphorus and impurities and other substances rise synchronously with the scraping block 22 and are discharged through the gas outlet 211. When the protruding block 231 on the rotating disk 23 completely passes the scraping block 22, the scraping block 22 descends and resets in the vertical direction. When the protruding block 231 passes the scraping block 22 again, the scraping block 22 rises again, and so on in a cycle.

[0051] The above embodiments only represent one or several implementation manners of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation on the protection scope of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. An assembled water washing device for removing polyphosphorus, comprising a housing (1) and a gas distribution unit (2) arranged inside the housing (1); Characterized in that, The housing (1) is of a cylindrical structure. The gas distribution unit (2) includes a plurality of air outlet pipes (21) uniformly arranged around the axis of the housing (1). The air outlet pipes (21) are arranged vertically and rotate synchronously around the axis of the housing (1). An air outlet (211) is formed on the upper side wall of each air outlet pipe (21). A scraping block (22) is slidably arranged vertically in the air outlet pipe (21), and the scraping block (22) is always located below the air outlet (211). A rotating disk (23) is rotatably arranged around the axis of the housing (1) below the air outlet pipe (21). The axis of the rotating disk (23) is collinear with the axis of the housing (1). A plurality of protruding blocks (231) are uniformly and fixedly arranged around the axis of the rotating disk (23) on the rotating disk (23). The protruding blocks (231) can push the scraping block (22). A locking unit (24) is arranged inside the rotating disk (23). The rotating disk (23) is locked with the bottom of the housing (1) or the air outlet pipe (21) through the locking unit (24). When the rotating disk (23) is locked with the air outlet pipe (21), the rotating disk (23) rotates synchronously with the air outlet pipe (21). When the rotating disk (23) is locked with the bottom of the housing (1), the rotating disk (23) rotates relative to the air outlet pipe (21).

2. The assembled water washing device for removing polyphosphorus according to claim 1, characterized in that, The locking unit (24) includes a locking block (241) movably arranged vertically in the rotating disk (23). The locking block (241) can be magnetically attracted. A first electromagnet (242) and a second electromagnet (243) are respectively arranged above and below the locking block (241). A locking rod (2411) is vertically and fixedly arranged on the upper and lower parts of the locking block (241). A first locking groove is vertically formed in the air outlet pipe (21), and a second locking groove is vertically formed in the bottom of the housing (1). When the gas distribution unit (2) is in the gas distribution mode, the locking rod (2411) located on the upper part of the locking block (241) is inserted and matched with the first locking groove. When the gas distribution unit (2) is in the cleaning mode, the locking rod (2411) located on the lower part of the locking block (241) is inserted and matched with the second locking groove.

3. The assembled water washing device for removing polyphosphorus according to claim 1, characterized in that, A main pipe (25) is rotatably arranged around the axis of the housing (1) inside the housing (1). An air distribution pipe (26) is arranged in the radial direction of the housing (1) at the bottom of the main pipe (25). There are a plurality of air distribution pipes (26), and the plurality of air distribution pipes (26) are arranged on the main pipe (25) around the axis of the housing (1). A one-way valve (27) is arranged on the main pipe (25). The air outlet pipe (21) is arranged at one end of the air distribution pipe (26) far from the main pipe (25).

4. The prefabricated water washing device for removing polyphosphorus according to claim 3, characterized in that, A first toothed ring (251) is fixedly arranged around the main pipe (25). A first gear (252) is rotatably arranged on one side of the first toothed ring (251). A first rotary driver (253) for driving the first gear (252) to rotate is arranged at the end of the first gear (252).

5. The assembled water washing device for removing polyphosphorus according to claim 1, characterized in that A lifting plate (212) is movably arranged vertically on the air outlet (211). A lifting rod (213) is vertically and fixedly arranged on the upper part of the lifting plate (212). The lifting rod (213) vertically penetrates the upper part of the air outlet pipe (21) and is in sliding fit with the upper part of the air outlet pipe (21). A first gap exists between the lifting plate (212) and the upper part of the air outlet pipe (21). A first spring (214) is vertically arranged in the first gap. The two ends of the first spring (214) are respectively fixedly connected to the lifting plate (212) and the upper part of the air outlet pipe (21).

6. The assembled water washing device for removing polyphosphorus according to claim 3, wherein, An annular membrane (261) is sleeved around the inner wall of the branch air pipe (26). An annular cavity is formed between the annular membrane (261) and the inner wall of the branch air pipe (26). A circular plate (262) is rotatably arranged below the branch air pipe (26) around the axis of the outer shell (1). An inflatable shell (263) is sleeved below the circular plate (262). The inflatable shell (263) and the circular plate (262) form an inflatable cavity. The inflatable cavity is communicated with the annular cavity. An inflation unit (264) is arranged at the lower part of the inflatable cavity.

7. The assembled water washing device for removing polyphosphorus according to claim 6, characterized in that, The inflation unit (264) includes an inflation disc (2641) arranged at the bottom of the outer shell (1). An inflation groove (2642) is formed in the inflation disc (2641) along the radial direction of the inflation disc (2641). An inflation block (2643) is slidably arranged in the inflation groove (2642). The inflation groove (2642) is communicated with the inflatable cavity. When the inflation block (2643) moves towards the center of the inflation disc (2641) in the inflation groove (2642), the gas in the inflation groove (2642) is filled into the inflatable cavity.

8. The assembled water washing device for removing polyphosphorus according to claim 3, characterized in that, An air intake unit (28) is arranged at the upper part of the main pipe (25). The air intake unit (28) includes an air intake ring (281) rotatably arranged above the main pipe (25). A plurality of pressing grooves (2811) are formed in the peripheral wall of the air intake ring (281). The extending direction of the pressing grooves (2811) is parallel to the radial direction of the air intake ring (281). A pressing component (282) is slidably arranged in the pressing grooves (2811) along the extending direction of the pressing grooves (2811). When the pressing grooves (2811) are communicated with the main pipe (25), the pressing component (282) slides to the end of the pressing groove (2811) far away from the center of the air intake ring (281). An air intake shell (283) is sleeved outside the air intake ring (281). An air intake end and an air outlet end are respectively arranged at the upper part and the lower part of the air intake shell (283). The air outlet end of the air intake shell (283) is communicated with the main pipe (25). The pressing grooves (2811) and the air intake shell (283) form an air intake cavity.

9. The assembled water washing device for removing polyphosphorus according to claim 8, characterized in that, The pressing component (282) includes a support shaft (2821) disposed in the inner ring of the intake ring (281) along the axis of the intake ring (281). The support shaft (2821) is located below the axis of the intake ring (281). A collar (2822) is rotatably sleeved outside the support shaft (2821). A pressing block (2824) is slidably disposed in the pressing groove (2811) along the extending direction of the pressing groove (2811). A second connecting rod (2823) is disposed between the pressing block (2824) and the collar (2822). The two ends of the second connecting rod (2823) are respectively hinged to the pressing block (2824) and the collar (2822).

10. The prefabricated water washing device for removing polyphosphorus according to claim 9, characterized in that, A groove (2825) is formed at the end of the pressing block (2824). A sliding plate (2826) is slidably disposed in the groove (2825) along the moving direction of the pressing block (2824). A second gap exists between the sliding plate (2826) and the bottom of the groove (2825). A second spring (2827) is disposed in the second gap along the extending direction of the groove (2825). The two ends of the second spring (2827) are respectively fixedly connected to the bottom of the groove (2825) and the sliding plate (2826).

Images