Spray tower spray liquid self-purification circulating treatment device

Abstract

The invention discloses a spray tower spray liquid self-purification circulating treatment device, which comprises a treatment shell, an inner cavity of which is sequentially divided into a gas circulation cavity and a spray water circulation cavity from top to bottom by a separator; the annular filter part is rotationally arranged on the partition part and matched with the inner cavity of the treatment shell, and the annular filter part is driven by driving equipment arranged in the gas circulation cavity to rotate; one end of the gas inlet pipe is connected with an equipment input end for supplying oxidizing gas, and the other end is communicated with one end of the gas circulation cavity; one end of the gas outlet pipe is communicated with the other end of the gas circulation cavity, and the other end is communicated with one end of the spray water circulation cavity; and the automatic impurity removal mechanism is arranged in the gas circulation cavity between the gas outlet pipe and the annular filtering piece. The driving equipment can drive the annular filtering part to rotate, and the outer wall areas, located in the spraying water circulation cavity and the gas circulation cavity, of the annular filtering part are continuously changed, so that ozone can dredge the annular filtering part, spraying water is stably filtered all the time, and the requirement for long-term stable operation is met.

Description

Technical Field

[0001] The invention relates to the technical field of spray liquid treatment, in particular to a spray tower spray liquid self-purification circulation treatment device. Background Art

[0002] During the production process of castings, a large amount of volatile organic compounds (VOCs) are generated. VOCs are highly toxic and carcinogenic. At present, the following steps are usually adopted in the industry to treat VOCs: VOCs are passed into a catalytic tower for treatment and then into a spray tower, and are treated by the spray liquid sprayed by the spray tower.

[0003] Although the above method can effectively treat VOCs, after long-term circulation, the spray water will accumulate a large amount of suspended matter, dissolved organic matter, microorganisms and other impurities. These impurities will not only affect the purification effect of the spray water, but also may cause the spray system to be blocked, increasing the equipment maintenance cost. Traditionally, the spray water is mainly removed by filtering structure to remove impurities in the spray water, and then it is circulated into the spray tower for use. However, this method has the disadvantage that the filtering structure is easy to be blocked, and it is difficult to meet the needs of long-term stable operation. To this end, we propose a self-purification circulation treatment device for spray tower spray liquid. Summary of the invention

[0004] The object of the present invention is to provide a self-purification circulation treatment device for spray tower spray liquid to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A spray tower spray liquid self-purification circulation treatment device, comprising:

[0007] A treatment shell, the inner cavity of which is divided from top to bottom by a partition to form a gas flow cavity and a spray water flow cavity, one end of the spray water flow cavity is connected to the liquid outlet of the spray tower through a water inlet pipe, and the other end is connected to the liquid inlet of the spray tower through a water outlet pipe;

[0008] An annular filter element is rotatably disposed on the partition element and adapted to the inner cavity of the treatment shell, wherein the annular filter element is driven to rotate by a driving device disposed in the gas flow cavity;

[0009] An air inlet pipe, one end of which is connected to the input end of the device for supplying oxidizing gas, and the other end of which is connected to one end of the gas flow cavity and faces the side of the annular filter element opposite to the water inlet pipe;

[0010] An air outlet pipe, one end of which is connected to the other end of the air circulation chamber, and the other end of which is connected to one end of the spray water circulation chamber and faces the side of the annular filter element opposite to the water inlet pipe; and

[0011] The automatic impurity removal mechanism is arranged in the gas flow cavity between the gas outlet pipe and the annular filter element, and is used for removing impurities in the oxidizing gas after the oxidizing gas passes through the annular filter element.

[0012] A further improvement is that the driving device comprises:

[0013] A rotating shaft is rotatably disposed in the gas flow cavity and located between the air inlet pipe and the annular filter element, one end of the rotating shaft extends into the assembly cavity provided in the partition element and is drivingly connected to the shaft portion of the annular filter element; and,

[0014] The wind cup member is arranged on the outer wall of the rotating shaft and is driven by the oxidizing gas entering from the air inlet pipe to drive the rotating shaft to rotate.

[0015] A further improvement is that the automatic impurity removal mechanism comprises:

[0016] An interception net is arranged in the gas flow cavity, and its top end passes through the top of the treatment shell;

[0017] The scraper member is fitted on the side of the interception net facing the annular filter member and is driven by the driving member to move up and down;

[0018] A collecting seat is arranged on one side of the intercepting net and embedded in the top of the processing shell, a movable opening for the scraper to enter is opened on one side of the bottom of the collecting seat, a collecting cavity is opened in the collecting seat, the collecting cavity and the movable opening are connected through a feed port, and the feed port is located at the top of the side opposite to the collecting cavity and the movable opening; and,

[0019] The scraper is movably arranged in the collecting chamber, one end of which extends from the feed port to the movable port. The scraper is used to scrape impurities on the scraper from the movable port into the collecting chamber when the scraper moves upward to a preset position.

[0020] A further improvement is that the driving member comprises:

[0021] A reciprocating screw, one end of which is threaded through the scraper element, and the other end of which extends into the assembly cavity and is drivingly connected to the shaft of the annular filter element; and

[0022] At least two groups of guide rods have one end connected to the inner wall of the bottom of the gas flow chamber and the other end movably penetrates the scraper member.

[0023] A further improvement is that the scraper comprises:

[0024] A U-shaped scraper member is slidably disposed on the inner wall of the collecting seat, the U-shaped scraper member comprises a horizontal section, a first vertical section and a second vertical section respectively disposed at both ends of the horizontal section and parallel to each other, the bottom of the first vertical section is used to contact the scraper member, the first vertical section is adapted to the size of the feed port, and the height of the second vertical section is greater than the height of the feed port;

[0025] A support plate is arranged on the inner wall of the collecting chamber, and an electromagnetic component for energizing and adsorbing the U-shaped scraper component is arranged on the side of the support plate facing the U-shaped scraper component. When the electromagnetic component adsorbs the U-shaped scraper component, the first vertical section is in the feed port; and

[0026] The elastic member connects the support plate and the U-shaped scraper member and is used to drive the U-shaped scraper member to reset when the electromagnetic member is powered off.

[0027] A further improvement is that a through opening is opened at the bottom of the first vertical section corresponding to the positions of the reciprocating screw and the guide rod, and a rotating plate is provided at the through opening through a torsion spring, and the rotating plate is used to flip when the U-shaped scraper moves to the reciprocating screw and the guide rod.

[0028] A further improvement is that the scraper member comprises:

[0029] A frame, a connecting plate is slidably provided inside the frame, a threaded hole for a reciprocating screw to pass through and a movable hole for a guide rod to pass through are provided on the connecting plate, the connecting plate and the inner wall of the frame are connected by an elastic connecting piece, and a plurality of groups of magnetic balls are embedded on the side of the frame away from the interception net; and

[0030] At least two groups of flexible connection membranes are respectively arranged on both sides of the connection plate, one end of the flexible connection membrane away from the connection plate is connected to the inner wall of the frame, and the top of the flexible connection membrane is flush with the frame and the top of the connection plate.

[0031] A further improvement is that a magnetic plate with a magnetic pole opposite to that of the magnetic ball is slidably provided at the bottom of the collecting seat, and the magnetic plate is driven to move horizontally by a telescopic device provided at the bottom of the collecting seat.

[0032] A further improvement is that a protrusion is provided on the inner wall of one side of the movable opening, a recess for the protrusion to enter is provided on the frame, a detection sensor 1 is embedded in the recess, a detection sensor 2 is embedded at the bottom of the frame, the detection sensor 1 and the detection sensor 2 are both electrically connected to an external controller, when the detection sensor 1 contacts the protrusion, the external controller controls the telescopic device to drive the magnetic plate to move from the first position to the second position and controls the electromagnetic member to be energized, when the detection sensor 2 contacts the inner wall at the bottom of the gas flow chamber, the external controller controls the telescopic device to drive the magnetic plate to reset to the first position;

[0033] Wherein, when the magnetic plate is located at the second position, the magnetic plate drives the frame to no longer contact with one side of the interception net, and when the magnetic plate is located at the first position, the frame contacts with one side of the interception net.

[0034] A further improvement is that the processing device further comprises:

[0035] A connecting pipe is arranged in the spray water circulation chamber, one end of the connecting pipe is connected to the end of the gas outlet pipe away from the gas circulation chamber through a rotating joint, a plurality of aeration holes are opened on the circumferential outer wall of the connecting pipe, and the connecting pipe is connected to the shaft of the annular filter in the assembly chamber through a transmission member;

[0036] A plurality of groups of drainage impellers are arranged on the outer wall of the connecting pipe along a linear array and staggered with the aeration holes; and,

[0037] The catalyst layer is arranged in the inner cavity of the spray water circulation cavity and is located between the water outlet pipe and the annular filter element.

[0038] Compared with the prior art, the present invention has the following beneficial effects:

[0039] 1) The present invention passes spray water into the spray water circulation chamber, passes ozone into the gas circulation chamber, and drives the annular filter element to rotate through a driving device, continuously changing the outer wall area of ​​the annular filter element located in the spray water circulation chamber and the gas circulation chamber, so that the ozone can dredge the annular filter element when flowing in the gas circulation chamber, and always keeps the outer wall area of ​​the annular filter element in the spray water circulation chamber to stably filter the spray water, thereby meeting the demand for long-term stable operation;

[0040] 2) The present invention is provided with an automatic impurity removal mechanism, which intercepts impurities in the circulating ozone through an interception net so that the ozone can subsequently enter the spray water circulation chamber and mix with the spray water. When the annular filter element rotates, the driving element drives the scraper element to scrape the impurities intercepted by the interception net upwards, and the scraping element automatically scrapes the impurities scraped by the scraper element into the collection chamber, thereby realizing automatic impurity removal. It not only significantly improves the impurity removal efficiency, but also effectively guarantees the continuity and stability of the subsequent purification process, ensuring the long-term and efficient operation of the spray water circulation system. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 It is a schematic diagram of the structure of the processing device of the present invention;

[0042] Figure 2 For the present invention Figure 1 Structural cross-section view;

[0043] Figure 3 For the present invention Figure 2 A magnified view of the structure A;

[0044] Figure 4 It is a schematic diagram of the structure of the scraper of the present invention;

[0045] Figure 5 It is a schematic diagram of the structure of the scraper member of the present invention;

[0046] Figure 6 For the present invention Figure 5 Schematic diagram of local structure;

[0047] Figure 7 It is a schematic diagram of the structure of the collecting seat of the present invention.

[0048] In the figure: 1. treatment shell; 2. partition; 3. gas circulation chamber; 4. spray water circulation chamber; 5. annular filter element; 6. water inlet pipe; 7. water outlet pipe; 8. air inlet pipe; 9. air outlet pipe; 10. rotating shaft; 11. wind cup member; 12. interception net; 13. reciprocating screw; 14. guide rod; 15. scraper member; 151. frame; 152. connecting plate; 153. flexible connecting membrane; 154. detection sensor 1; 155. elastic connecting member; 16. collecting seat; 17. movable port; 18. collecting chamber; 19. feeding port; 20. U-shaped scraper member; 21. rotating plate; 22. supporting plate; 23. elastic member; 24. electromagnetic member; 25. connecting pipe; 26. drainage impeller; 27. aeration hole; 28. telescopic device; 29. ​​magnetic plate. DETAILED DESCRIPTION

[0049] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0050] Example 1

[0051] Please see attached Figure 1 -Attached Figure 2

[0052] A spray tower spray liquid self-purification circulation treatment device, comprising:

[0053] A treatment shell 1, whose inner cavity is divided from top to bottom by a partition 2 to form a gas flow chamber 3 and a spray water flow chamber 4. One end of the spray water flow chamber 4 is connected to the liquid outlet end of the spray tower through a water inlet pipe 6, and the other end is connected to the liquid inlet end of the spray tower through a water outlet pipe 7, so that the spray liquid used for the spray tower enters the spray water flow chamber 4 for treatment after use, and then enters the liquid outlet end of the spray tower through the water inlet pipe 6. It should be noted that in actual situations, a pump body can be set at the water inlet pipe 6 or the water outlet pipe 7. The treatment shell 1 also has an operating port (not shown in the figure) connected to the spray water flow chamber 4. When the spray liquid is insufficient, fresh water can be added from the operating port. In the event of extreme events such as excessive salt content, the internal spray liquid can be replaced.

[0054] An annular filter 5 is rotatably disposed on the partition 2 and adapted to the inner cavity of the treatment shell 1. The annular filter 5 is driven to rotate by a driving device disposed in the gas circulation cavity 3. The inner cavity of the treatment shell 1 has an annular cavity that accommodates the annular filter 5 and is connected to the spray water circulation cavity 4 and the gas circulation cavity 3. The partition 2 is provided with a movable opening adapted to the diameter of the annular filter 5. The annular filter 5 is rotatably connected to the movable opening through the shaft portion at the center of the circle. The annular filter 5 is used to filter impurities in the spray water.

[0055] The air inlet pipe 8 has one end connected to the input end of the device for supplying oxidizing gas, and the other end connected to one end of the gas circulation chamber 3 and facing the side of the annular filter 5 opposite to the water inlet pipe 6. The above-mentioned device for supplying oxidizing gas includes, for example, an ozone generator and an air pump. The ozone generated by the ozone generator is input into the gas circulation chamber 3 through the air inlet pipe 8 through the air pump. The ozone entering the gas circulation chamber 3 passes through the outer wall portion of the annular filter 5 located in the gas circulation chamber 3, so that the impurities blocked on the annular filter 5 are separated from the annular filter 5;

[0056] An air outlet pipe 9, one end of which is connected to the gas circulation chamber 3, and the other end of which is connected to one end of the spray water circulation chamber 4 and faces the side of the annular filter 5 opposite to the water inlet pipe 6. The ozone in the gas circulation chamber 3 enters the spray water circulation chamber 4 through the air outlet pipe 9 and mixes with the spray water therein, catalytically oxidizing the spray water, and the spray water passes through the outer wall portion of the annular filter 5 located in the spray water circulation chamber 4 and is discharged from the water outlet pipe 7; and,

[0057] The automatic impurity removal mechanism is arranged in the gas flow chamber 3 between one end of the gas outlet pipe 9 and the annular filter element 5, and is used to remove impurities in the oxidizing gas after the oxidizing gas passes through the annular filter element 5. In order to prevent the impurities on the annular filter element 5 removed by the oxidizing gas from re-entering the spray water, the impurities removed by the oxidizing gas can be intercepted and processed by the automatic impurity removal mechanism.

[0058] Preferably, the driving device of this embodiment includes:

[0059] A rotating shaft 10 is rotatably disposed in the gas flow cavity 3 and is located between the air inlet pipe 8 and the annular filter element 5. One end of the rotating shaft 10 extends into the assembly cavity provided in the partition 2 and is transmission-connected with the shaft of the annular filter element 5. For example, the rotating shaft 10 and the shaft of the annular filter element 5 are transmission-connected via a bevel gear set (two sets of meshing bevel gears); and,

[0060] The wind cup member 11 is arranged on the outer wall of the rotating shaft 10, and is driven by the oxidizing gas entering from the air inlet pipe 8 to rotate the rotating shaft 10. The wind cup member 11 is a conventional structure in this field and will not be described in detail here. When the wind cup member 11 rotates, it can drive the annular filter element 5 to rotate through the rotating shaft 10, thereby continuously changing the outer wall area of ​​the annular filter element 5 located in the spray water circulation chamber 4 to prevent the outer wall area of ​​the annular filter element 5 located in the spray water circulation chamber 4 from being blocked and affecting the treatment of the spray water.

[0061] Preferably, the above-mentioned driving device can also be a motor and a reducer arranged on the inner wall of the gas circulation chamber 3, and the output end of the reducer extends to the assembly cavity opened in the partition 2 and is connected to the shaft of the annular filter 5 by transmission. The selection is made according to actual conditions and will not be described in detail here.

[0062] Please see attached Figure 3 -Attached Figure 7

[0063] Preferably, the automatic impurity removal mechanism of this embodiment includes:

[0064] The interception net 12 is arranged in the gas circulation chamber 3, and its top passes through the top of the processing shell 1. The height of the interception net 12 is greater than the height of the gas circulation chamber 3. The mesh area on the interception net 12 is located in the gas circulation chamber 3, and is used to intercept impurities in the oxidizing gas.

[0065] The scraper member 15 is fitted on the side of the interception net 12 facing the annular filter member 5 and is driven by the driving member to move up and down, and is used to scrape the impurities intercepted by the interception net 12 away from the interception net 12 to prevent the interception net 12 from being blocked and affecting the circulation of the oxidizing gas;

[0066] A collecting seat 16 is provided on one side of the intercepting net 12 and embedded in the top of the processing shell 1. A movable opening 17 for the scraper member 15 to enter is provided on one side of the bottom of the collecting seat 16. A collecting chamber 18 is provided in the collecting seat 16. The collecting chamber 18 and the movable opening 17 are connected through a feed port 19. The feed port 19 is located at the top of the opposite side of the collecting chamber 18 and the movable opening 17. A cover body is also detachably provided at the position of the top of the collecting seat 16 corresponding to the collecting chamber 18, so as to process impurities in the collecting chamber 18; and,

[0067] The scraper is movably arranged in the collecting chamber 18, one end of which extends from the feed port 19 to the movable port 17. The scraper is used to scrape impurities on the scraper 15 from the movable port 17 into the collecting chamber 18 when the scraper 15 moves upward to a preset position. Figure 3 As shown, when the scraper member 15 moves upward to a preset position, the top of the scraper 15 is flush with the bottom inner wall of the feed inlet 19, and the top of the scraper 15 is also in contact with one end of the scraper member.

[0068] Preferably, the driving member of this embodiment includes:

[0069] The reciprocating screw 13 has one end threaded through the scraper 15, and the other end extends into the assembly cavity and is connected to the shaft of the annular filter 5. The reciprocating screw 13 and the shaft of the annular filter 5 can be connected by a bevel gear set; and,

[0070] At least two groups of guide rods 14 are provided, one end of which is connected to the inner wall of the bottom of the gas flow chamber 3 and the other end of which movably penetrates the scraper member 15. The guide rods 14 can limit the scraper member 15 to stably move up and down driven by the reciprocating screw 13 without rotating.

[0071] Preferably, the scraper member of this embodiment includes:

[0072] The U-shaped scraper 20 is slidably disposed on the inner wall of the collecting seat 16. The U-shaped scraper 20 includes a horizontal section, a first vertical section and a second vertical section respectively disposed at both ends of the horizontal section and parallel to each other. The bottom of the first vertical section is used to contact the scraper 15. The first vertical section is adapted to the size of the feed port 19 so that the feed port 19 is closed when the U-shaped scraper 20 moves to a preset position, so that the internal oxidizing gas is not easy to leak out. The height of the second vertical section is greater than the height of the feed port 19. When the U-shaped scraper 20 is not moved, the feed port 19 is sealed so that the internal oxidizing gas is not easy to leak out.

[0073] A support plate 22 is arranged on the inner wall of the collection chamber 18. An electromagnetic member 24 is arranged on the side of the support plate 22 facing the U-shaped scraper 20 to attract the U-shaped scraper 20. The electromagnetic member 24 is, for example, an electromagnetic block. The U-shaped scraper 20 can be made of a magnetic metal material. When the electromagnetic member 24 attracts the U-shaped scraper 20, the first vertical section is in the feed port 19, which can not only scrape the impurities scraped by the scraper member 15 into the collection chamber 18 but also close the feed port 19; and,

[0074] The elastic member 23 connects the support plate 22 and the U-shaped scraper 20 and is used to drive the U-shaped scraper 20 to reset when the electromagnetic member 24 is powered off. The elastic member 23 is, for example, a T-shaped rod with one end connected to the U-shaped scraper 20 and the other end movably passing through the support plate 22 and a spring sleeved on the outer wall of the T-shaped rod.

[0075] Preferably, the bottom of the first vertical section of the present embodiment is provided with through openings corresponding to the positions of the reciprocating screw 13 and the guide rod 14, and a rotating plate 21 is provided at the through opening through a torsion spring. The rotating plate 21 is used to flip when the U-shaped scraper 20 moves to the reciprocating screw 13 and the guide rod 14. When the U-shaped scraper 20 moves to the reciprocating screw 13 or the guide rod 14, the rotating plate 21 flips so that the reciprocating screw 13 or the guide rod 14 passes through the through opening. On the one hand, the quality of scraping impurities on the scraper member 15 by the U-shaped scraper 20 is guaranteed, and on the other hand, the reciprocating screw 13 or the guide rod 14 will not affect the movement of the U-shaped scraper 20.

[0076] Preferably, the scraper member 15 of this embodiment includes:

[0077] The frame 151 has a connecting plate 152 slidably disposed therein. One side of the frame 151 contacts the outer wall of one side of the interception net 12. The connecting plate 152 is provided with a threaded hole for the reciprocating screw 13 to pass through and a movable hole for the guide rod 14 to pass through. The connecting plate 152 and the inner wall of the frame 151 are connected by an elastic connecting member 155, which is, for example, an elastic telescopic rod. A plurality of groups of magnetic balls (not shown in the figure) are embedded on the side of the frame 151 away from the interception net 12, so that the frame 151 can move horizontally relative to the connecting plate 152; and,

[0078] At least two groups of flexible connecting membranes 153 are respectively arranged on both sides of the connecting plate 152. The flexible connecting membrane 153 can be made of PE film or PP film, etc., so as to adapt to the movement of the frame 151 relative to the connecting plate 152. The end of the flexible connecting membrane 153 away from the connecting plate 152 is connected to the inner wall of the frame 151. In the initial state, the top of the flexible connecting membrane 153 is flush with the top of the frame 151 and the connecting plate 152, so that the U-shaped scraper 20 scrapes impurities into the collection chamber 18.

[0079] Preferably, a magnetic plate 29 with a magnetic pole opposite to that of the magnetic ball is slidably provided at the bottom of the collecting seat 16 of the present embodiment, and the magnetic plate 29 is driven to move horizontally by a telescopic device 28 provided at the bottom of the collecting seat 16, and the telescopic device 28 is, for example, an electric telescopic rod. Since the magnetic plate 29 has a magnetic pole opposite to that of the magnetic ball, the position of the magnetic plate 29 is adjusted by the telescopic device 28. When the magnetic plate 29 is closer to the magnetic ball, after the frame 151 moves downward out of the movable opening 17, the frame 151 will move as a whole toward the magnetic plate 29, and then one end of the frame 151 will be separated from the interception net 12; when the magnetic plate 29 is far away from the magnetic ball, the elastic connecting member 155 is greater than the magnetic force, and the frame 151 will not move.

[0080] Preferably, a protrusion is provided on the inner wall of one side of the movable opening 17 of the present embodiment, and a recess for the protrusion to enter is provided on the frame 151. Specifically, when the protrusion enters the recess, the top of the frame 151 contacts the first vertical section, and the top of the frame 151 is flush with the bottom inner wall of the feed opening 19; a detection sensor 154 is embedded in the recess, and a detection sensor 2 is embedded at the bottom of the frame 151. The detection sensor 1 154 and the detection sensor 2 can be pressure sensors. The detection sensor 1 154 and the detection sensor 2 are electrically connected to an external controller. When the detection sensor 1 154 contacts the protrusion, the external controller controls the telescopic device 28 to drive the magnetic plate 29 to move from the first position to the second position and controls the electromagnetic member 24 to be energized. When the detection sensor 2 contacts the bottom inner wall of the gas circulation chamber 3, the external controller controls the telescopic device 28 to drive the magnetic plate 29 to reset to the first position.

[0081] Among them, when the magnetic plate 29 is in the second position, at this time, the magnetic plate 29 is closer to the magnetic ball, and the magnetic force between the magnetic plate 29 and the magnetic ball is greater than the elastic reset force of the elastic connector 155, and the magnetic plate 29 drives the frame 151 to no longer contact one side of the interception net 12; when the magnetic plate 29 is in the first position, at this time, the magnetic plate 29 is far away from the magnetic ball, and the magnetic force between the magnetic plate 29 and the magnetic ball is less than the elastic reset force of the elastic connector 155, and the frame 151 is in contact with one side of the interception net 12.

[0082] Specifically, the reciprocating screw 13 rotates to drive the scraper 15 upward, and the scraper 15 pushes the impurities on the interception net 12 upward. When it contacts the detection sensor 154, the telescopic device 28 drives the magnetic plate 29 to move from the first position to the second position and controls the electromagnetic member 24 to be energized. The electromagnetic member 24 is energized to scrape the impurities on the scraper 15 into the collection chamber 18 through the U-shaped scraper 20. Then, the reciprocating screw 13 rotates to drive the scraper 15 downward. At this time, the electromagnetic member 24 is de-energized, and the U-shaped scraper 20 is reset. When the scraper 15 moves downward, After the movable opening 17 is moved out, under the action of the magnetic ball and the magnetic plate 29, the frame 151 moves toward the magnetic plate 29 and no longer contacts the interception net 12, so that the impurities on the interception net 12 will not be scraped downward to the inner wall of the gas circulation chamber 3 when the scraper member 15 moves downward. When the scraper member 15 contacts the second detection sensor, the telescopic device 28 drives the magnetic plate 29 to reset. At this time, under the action of the elastic connecting member 155, the frame 151 resets and contacts the interception net 12 again, and the reciprocating screw 13 then drives the scraper member 15 upward, and repeats this process.

[0083] Example 2

[0084] Preferably, the processing device in this embodiment further includes:

[0085] The connecting pipe 25 is arranged in the spray water circulation chamber 4. One end of the connecting pipe 25 is connected to the end of the gas outlet pipe 9 away from the gas circulation chamber 3 through a rotary joint. The circumferential outer wall of the connecting pipe 25 is provided with a plurality of aeration holes 27. The connecting pipe 25 is connected to the shaft of the annular filter element 5 in the assembly chamber through a transmission member, and the transmission member is, for example, a sprocket transmission group (including a sprocket and a chain).

[0086] A plurality of groups of drainage impellers 26 are arranged along a linear array on the outer wall of the connecting pipe 25 and staggered with the aeration holes 27. In this way, the rotating connecting pipe 25 breaks up the ozone discharged from the aeration holes 27 through the drainage impellers 26, which promotes the dissolution and diffusion of ozone molecules into the water, thereby achieving uniform and rapid mixing of ozone and spray water. The thrust or centrifugal force effect generated by the impellers is also used to push the spray water to the annular filter element 5 at a certain speed and direction for filtering treatment, thereby improving the treatment efficiency and quality of the spray water; and,

[0087] The catalyst layer is arranged in the inner cavity of the spray water circulation cavity 4 and is located between the water outlet pipe 7 and the annular filter element 5. The catalyst layer is composed of, for example, a carrier-loaded metal oxide. The carrier includes clay, molecular sieve, ceramsite, activated carbon macroporous material, and the metal oxide loaded on the catalyst surface includes one or more of aluminum oxide, manganese oxide, iron oxide, tin oxide, silver oxide and other transition metal oxides; preferably, it is a multi-metal catalyst. The catalyst layer cooperates with ozone in the spray water to improve the purification effect of the spray water.

[0088] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A spray tower spray liquid self-purification circulation treatment device, characterized in that: include: A treatment shell (1), the inner cavity of which is divided from top to bottom by a partition (2) into a gas circulation chamber (3) and a spray water circulation chamber (4), one end of the spray water circulation chamber (4) is connected to the liquid outlet of the spray tower through a water inlet pipe (6), and the other end is connected to the liquid inlet of the spray tower through a water outlet pipe (7); an annular filter element (5) rotatably disposed on the partition element (2) and adapted to the inner cavity of the processing shell (1), wherein the annular filter element (5) is driven to rotate by a driving device disposed in the gas flow cavity (3); An air inlet pipe (8), one end of which is connected to an input end of a device for supplying oxidizing gas, and the other end of which is connected to one end of the gas flow chamber (3) and faces a side of the annular filter (5) opposite to the water inlet pipe (6); an air outlet pipe (9), one end of which is connected to the other end of the air circulation chamber (3), and the other end of which is connected to one end of the spray water circulation chamber (4) and faces the side of the annular filter element (5) opposite to the water inlet pipe (6); and The automatic impurity removal mechanism is arranged in the gas flow cavity (3) between the gas outlet pipe (9) and the annular filter element (5), and is used to remove impurities in the oxidizing gas after the oxidizing gas passes through the annular filter element (5).

2. The processing device according to claim 1, characterized in that: The driving device comprises: A rotating shaft (10) is rotatably disposed in the gas circulation cavity (3) and is located between the air inlet pipe (8) and the annular filter element (5), one end of the rotating shaft (10) extends into an assembly cavity provided in the partition element (2) and is drivingly connected to the shaft portion of the annular filter element (5); and, The wind cup member (11) is arranged on the outer wall of the rotating shaft (10) and is driven by the oxidizing gas entering through the air inlet pipe (8) to drive the rotating shaft (10) to rotate.

3. The processing device according to claim 2, characterized in that: The automatic impurity removal mechanism comprises: An interception net (12) is arranged in the gas flow chamber (3), and its top end penetrates the top of the processing shell (1); A scraper member (15) is fitted on a side of the interception net (12) facing the annular filter member (5) and is driven by a driving member to move up and down; A collecting seat (16) is arranged on one side of the intercepting net (12) and embedded in the top of the processing shell (1); a movable opening (17) for the scraper member (15) to enter is provided on one side of the bottom of the collecting seat (16); a collecting chamber (18) is provided in the collecting seat (16); the collecting chamber (18) and the movable opening (17) are connected via a feed opening (19); the feed opening (19) is located at the top of a side opposite to the collecting chamber (18) and the movable opening (17); and, A scraper is movably disposed in the collection chamber (18), one end of which extends from the feed port (19) to the movable port (17). The scraper is used to scrape impurities on the scraper (15) from the movable port (17) into the collection chamber (18) when the scraper (15) moves upward to a preset position.

4. The processing device according to claim 3, characterized in that: The driving member comprises: A reciprocating screw (13), one end of which is threadedly inserted through the scraper member (15), and the other end of which extends into the assembly cavity and is drivingly connected to the shaft of the annular filter member (5); and At least two groups of guide rods (14) have one end connected to the inner wall of the bottom of the gas flow chamber (3) and the other end movably penetrates the scraper member (15).

5. The processing device according to claim 4, characterized in that: The scraper comprises: A U-shaped scraper (20) is slidably disposed on the inner wall of the collecting seat (16), the U-shaped scraper (20) comprising a horizontal section, a first vertical section and a second vertical section respectively disposed at two ends of the horizontal section and parallel to each other, the bottom of the first vertical section is used to contact the scraper (15), the first vertical section is adapted to the size of the feed port (19), and the height of the second vertical section is greater than the height of the feed port (19); A support plate (22) is arranged on the inner wall of the collecting chamber (18); an electromagnetic component (24) for adsorbing the U-shaped scraper (20) when powered is provided on the side of the support plate (22) facing the U-shaped scraper (20); when the electromagnetic component (24) adsorbs the U-shaped scraper (20), the first vertical section is located in the feed port (19); and, The elastic member (23) connects the support plate (22) and the U-shaped scraper member (20) and is used to drive the U-shaped scraper member (20) to reset when the electromagnetic member (24) is powered off.

6. The processing device according to claim 5, characterized in that: The bottom of the first vertical section is provided with openings at positions corresponding to the reciprocating screw (13) and the guide rod (14), and a rotating plate (21) is provided at the opening for rotation by a torsion spring, and the rotating plate (21) is used for turning over when the U-shaped scraper (20) moves to the reciprocating screw (13) and the guide rod (14).

7. The processing device according to claim 5, characterized in that: The scraper member (15) comprises: A frame (151) is provided with a connecting plate (152) slidably disposed therein, the connecting plate (152) is provided with a threaded hole for the reciprocating screw (13) to pass through and a movable hole for the guide rod (14) to pass through, the connecting plate (152) and the inner wall of the frame (151) are connected via an elastic connecting member (155), and a plurality of groups of magnetic balls are embedded on a side of the frame (151) away from the interception net (12); and, At least two groups of flexible connection membranes (153) are respectively arranged on both sides of the connection plate (152); one end of the flexible connection membrane (153) away from the connection plate (152) is connected to the inner wall of the frame (151); and the top of the flexible connection membrane (153) is flush with the top of the frame (151) and the top of the connection plate (152).

8. The processing device according to claim 7, characterized in that: A magnetic plate (29) having a magnetic pole opposite to that of the magnetic ball is slidably disposed at the bottom of the collecting seat (16), and the magnetic plate (29) is driven to move horizontally by a telescopic device (28) disposed at the bottom of the collecting seat (16).

9. The processing device according to claim 8, characterized in that: A protrusion is provided on the inner wall of one side of the movable opening (17); a recess for the protrusion to enter is provided on the frame (151); a detection sensor 1 (154) is embedded in the recess; a detection sensor 2 is embedded in the bottom of the frame (151); the detection sensor 1 (154) and the detection sensor 2 are both electrically connected to an external controller; when the detection sensor 1 (154) contacts the protrusion, the external controller controls the telescopic device (28) to drive the magnetic plate (29) to move from the first position to the second position and controls the electromagnetic member (24) to be energized; when the detection sensor 2 contacts the inner wall of the bottom of the gas circulation chamber (3), the external controller controls the telescopic device (28) to drive the magnetic plate (29) to return to the first position; When the magnetic plate (29) is located at the second position, the magnetic plate (29) drives the frame (151) to no longer contact one side of the interception net (12); when the magnetic plate (29) is located at the first position, the frame (151) contacts one side of the interception net (12).

10. The processing device according to claim 1, characterized in that: The processing device also includes: A connecting pipe (25) is arranged in the spray water circulation chamber (4), one end of the connecting pipe (25) is connected to an end of the gas outlet pipe (9) away from the gas circulation chamber (3) through a rotary joint, a plurality of groups of aeration holes (27) are formed on the circumferential outer wall of the connecting pipe (25), and the connecting pipe (25) is connected to the shaft of the annular filter element (5) in the assembly chamber through a transmission element; A plurality of groups of drainage impellers (26) are arranged along a linear array on the outer wall of the connecting pipe (25) and staggered with the aeration holes (27); and, The catalyst layer is arranged in the inner cavity of the spray water circulation cavity (4) and is located between the water outlet pipe (7) and the annular filter element (5).

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