Purification device for mariculture

Abstract

The invention discloses a purification device for mariculture, relates to the technical field of mariculture water purification equipment, and is used for solving the problems that a filter screen of a filtering device is relatively poor in cleaning response capability when being blocked, and the effect of utilizing filtered and transmitted water flow power is poor. The circulating guide seat, the scraping brush power shaft, the blades, the scraping brush mounting disc and the bristle mounting seat are mainly arranged, so that the dependence of mechanical filtering maintenance on external driving energy is reduced, and the blockage and interference of the filtering state of the filtering device on water circulation are reduced. Through cooperation of a permanent magnet block and an opening electromagnet, the moving position of the filtering sleeve is adjusted in an auxiliary mode, the automatic starting response performance of cleaning and deslagging of the filtering device is improved, the convenience and stability of self-cleaning and deslagging of the filtering device are improved, the cleanliness of automatic deslagging of filter residues of the filtering device is improved, and the service life of the filtering device is prolonged. And the stability and the control convenience of resetting control after cleaning and deslagging of the filtering device are improved.

Description

Technical Field

[0001] The invention relates to the technical field of marine aquaculture water purification equipment, and in particular to a purification device for marine aquaculture. Background Art

[0002] Marine aquaculture, also known as seawater aquaculture, is the production activity of cultivating marine aquatic economic animals and plants on shallow coastal mudflats, including shallow sea aquaculture, mudflat aquaculture, harbor aquaculture, etc.; due to the large aquaculture area, seawater aquaculture is usually large-scale farms. The accumulation of bait and excrement caused by the increase in farming time and area makes the organic matter content in the water body higher. The large-scale use of antibiotics and other drugs causes a large accumulation of harmful bacteria carried by the water body, causing great damage to the water resources environment.

[0003] The purification of water for marine aquaculture is mainly divided into mechanical filtration, chemical filtration and biological filtration. The latter two usually use consumables with relatively high costs, and the impurities filtered under separate filtration conditions are usually single. However, these two methods of purification of water for marine aquaculture mainly target soluble impurities and water pollutants such as organisms and pathogens with smaller particle sizes, which are essential steps in the purification of water for marine aquaculture. Prior to this, the use of mechanical filtration to pre-grade and filter solid impurities in aquaculture water is also an essential operation, which is a necessary prerequisite for reducing the pressure of tail water treatment and the cost of biological and chemical purification.

[0004] In the existing marine aquaculture wastewater treatment process, usually due to the large amount of water used in marine aquaculture, most of them require long-term high-intensity operation. In the transmission and filtration systems of marine aquaculture wastewater purification work, the mechanical filtration purification water flux in the pre-purification stage is the largest, which puts a great burden on mechanical filtration; in the existing mechanical filtration methods, its filtration efficiency is mainly limited by the blockage of the main filtration structures such as the filter screen and the filter plate, which causes the purification filtration effect and speed to gradually decrease, and the main filtration structures such as the filter screen and the filter plate need to be frequently maintained and cleaned; and in large-flux mechanical filtration, the cleaning of the main filtration structures such as the filter screen and the filter plate is often inconvenient to operate, and the cleaning effect is poor. It is extremely dependent on manual labor and the installation of an automatic control mechanism to clean the filtration structure, which further leads to the complex structure of the mechanical filtration equipment, increased costs, and increased maintenance difficulties. Under long-term operation, the investment cost of mechanical filtration of large-flux water bodies such as marine aquaculture is relatively high.

[0005] In the prior art, for example, Korean invention patent KR1020240051837A discloses a brush filter and a brush filter device using the same. In the technical solution of the invention patent, a first brush supported by a first brush stage is used to rotate along the outer periphery of the filter portion by relying on the force of the flowing fluid, sweeping like combing, to clean the filter residue and impurities, and the first bristles are arranged in multiple intervals along the outer periphery of the filter portion; the bristle structure is driven to rotate by the power of the water flow, and the cleaning of the filter screen relies on the bristles rotating around it to brush it, which has a certain cleaning effect on the filter screen; but the rotational power used by the bristle structure group may bring greater vibration shock to the entire filter device, and it may be difficult to thoroughly clean the filter screen and efficiently discharge the solid impurities trapped on it. Summary of the invention

[0006] The object of the present invention is to provide a purification device for marine aquaculture to solve the problems of poor cleaning response ability due to clogging of the filter screen of the filtering device and poor effect of water flow transmission by filtering.

[0007] In order to solve the above technical problems, the present invention specifically provides the following technical solutions: A purification device for marine aquaculture comprises a purification work box, a purification chamber is arranged in the purification work box, a purification input end cover and a purification output end cover are fixedly connected to the left and right end faces of the purification work box respectively, a filter screen is arranged in the purification chamber, a filter sleeve is slidably connected in the purification chamber, a scraper brush power shaft is arranged in the filter sleeve, a blade bracket is fixedly connected to the left end of the scraper brush power shaft, a blade is fixedly connected to the blade bracket, a scraper brush mounting plate and a bristle mounting seat are arranged at the right end of the scraper brush power shaft, a flow guide seat is fixedly connected to the inner end face of the purification input end cover, and a jet guide chamber is arranged in the flow guide seat; By arranging a circulation guide seat, a scraper brush power shaft, blades, a scraper brush mounting plate and a bristle mounting seat, the possibility of the filter being completely blocked and causing filtration failure is reduced, the automatic cleaning effect of mechanical filtration of water bodies and the stability of filtration work are improved, the dependence of mechanical filtration maintenance on external driving energy is reduced, the adaptability of the filtration device in a variety of filtration use environments is improved, the utilization effect of the automatic cleaning of the filtration device on the transmission of water flow force is improved, the obstruction and interference of the filtration state of the filtration device on the circulation of water bodies is reduced, the stability of the filtration passage is improved, and the frequency of mechanical filtration blockage maintenance and the frequency of vibration impact are reduced.

[0008] Preferably, a filter working chamber is provided in the filter sleeve, and a scraper brush power shaft is rotatably connected to the circumferential side wall of the filter working chamber through a fixed bracket, and a joint adjustment seat is rotatably connected to the right end of the scraper brush power shaft, and the right end of the joint adjustment seat is fixedly connected to the scraper brush mounting plate, and the scraper brush mounting plate is provided with evenly distributed drainage holes, and the right end surface of the scraper brush mounting plate is fixedly connected to the bristle mounting seat; The possibility of the impact force of the water flow being transmitted to the filter sleeve through the scraper and brush mounting plate, causing the filter sleeve to vibrate and slide in the purification chamber, is reduced, and the convenience of disassembly, assembly and maintenance of the filter device is improved.

[0009] Preferably, an elastic sealing cover and a return spring are fixedly connected between the circumferential side wall at the left end of the purification chamber and the left end face of the filter sleeve, and a similar elastic sealing cover is fixedly connected to the right end face of the filter sleeve; The elastic sealing cover can effectively prevent impurities in the water flow from corroding the structure in the sealed space, thereby increasing the service life of the overall structure of the filter device and reducing the possibility of solid impurities being retained to form lumps and block the water flow path.

[0010] Preferably, a slag discharge through hole and a cleaning circulation hole are provided in the lower end wall of the filtering working chamber. The slag discharge through hole is located on the right side of the cleaning circulation hole, and the slag discharge through hole is located on the left side of the filter screen.

[0011] Preferably, a docking position hole is provided in the lower end wall of the purification chamber, a sealing plug is rotatably connected in the docking position hole, and the docking position hole can be docked and connected with the cleaning flow hole.

[0012] Preferably, a cleaning circulation pipe is provided at the lower end of the purification working box, and a main slag discharge pipe is fixedly connected to the right end of the cleaning circulation pipe, the main slag discharge pipe and the cleaning circulation pipe are connected to each other, and both the cleaning circulation pipe and the main slag discharge pipe can be connected with the docking gear hole; The convenience of selecting different gears of the cleaning circulation pipe and the main slag discharge pipe by docking the cleaning circulation hole and the slag discharge hole through the docking gear hole is improved, the adjustment and use adaptability of the filter device under various filtering pressures is improved, and the mechanical filtering capacity of the filter device is improved.

[0013] Preferably, an opening electromagnet is fixedly connected to the lower end wall of the purification chamber, and a permanent magnet block is fixedly connected to the right end surface of the filter sleeve. The condition that the magnetic force of the permanent magnet block drives the permanent magnet block and the opening electromagnet to fit closely is that the distance between the permanent magnet block and the opening electromagnet is not greater than the distance between the slag discharge through hole and the cleaning flow hole; By setting the cooperation of permanent magnet blocks and opening electromagnets to assist in adjusting the moving position of the filter sleeve, the automatic start-up response performance of the filter device for cleaning and slag discharge is improved, the maintenance frequency of the filter device for cleaning and slag discharge and the dependence on external energy monitoring and drive are reduced, the smoothness of the conduction of the filter device for cleaning and slag discharge is improved, the convenience and stability of the filter device for self-cleaning and slag discharge is improved, the cleanliness of the automatic discharge of the filter residue is improved, and the stability and control convenience of the reset control of the filter device after cleaning and slag discharge are improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0015] Figure 1 This is a schematic diagram of the overall assembly structure of a purification device for marine aquaculture according to the present invention; Figure 2 yes Figure 1 A schematic diagram of the main view; Figure 3 yes Figure 2 A right side schematic diagram of Figure 4 yes Figure 2 Schematic diagram of top view; Figure 5 yes Figure 2 Schematic diagram of the internal structure of the purification working box; Figure 6 yes Figure 5 A partial enlarged schematic diagram of the middle filter sleeve; Figure 7 yes Figure 5 A partial enlarged schematic diagram of point E in the middle; Figure 8 yes Figure 5 A partial enlarged schematic diagram of point F in the middle; Fig. 9 yes Figure 5 A partial enlarged schematic diagram of the G in the middle; Fig.10 yes Figure 7 A partial enlarged schematic diagram of the H in the middle; Fig.11 yes Figure 8 A schematic diagram of the assembly relationship between the clean circulation pipe and the purification working box; Fig.12 yes Fig.11 A schematic diagram of the main view; Fig.13 yes Figure 5 A schematic diagram of the purification working box from above; Fig.14 yes Figure 6 Schematic diagram of the three-dimensional structure of the middle scraper brush power shaft; Fig.15 yes Figure 6 Schematic diagram of the assembly relationship between the middle joint adjustment seat and the scraper brush mounting plate; Fig.16 15 is a schematic diagram of the internal structure of the scraper brush mounting plate; Fig.17 yes Figure 1 Schematic diagram of the internal structure of the transfer box.

[0016] Figure 1: purification working box 10; purification chamber 11; purification output end cover 12; purification input end cover 13; purification input pipeline 14; purification output pipeline 15; circulation guide seat 16; filter sleeve 17; filter working chamber 18; filter screen 19; jet guide chamber 20; slag discharge through hole 21; cleaning circulation hole 22; docking gear hole 23; sealing plug 24; cleaning circulation pipe 25; main slag discharge pipe 26; permanent magnet block 27; sealing limit sleeve 28; elastic sealing cover 29; opening Electromagnet 30; reset spring 31; positioning mounting groove 32; gear adjustment threaded rod 33; gear adjustment connecting block 34; recoil pipe 35; diffuser output seat 36; scraper brush power shaft 50; blade bracket 51; blade 52; joint adjustment seat 53; bristle mounting seat 54; scraper brush mounting plate 55; diversion hole 56; transfer box 60; temporary storage chamber 61; floating slide plate 62; temporary storage sealing end cover 63; buoyancy spring 64; merging frame 65; transfer output pipe 66; mounting base 67. DETAILED DESCRIPTION

[0017] 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.

[0018] The following first describes the concepts involved in the present application in conjunction with the accompanying drawings. It should be noted that the following description of each concept is only to make the content of the present application easier to understand, and does not limit the scope of protection of the present application; at the same time, the embodiments and features in the embodiments of the present application can be combined with each other in the absence of conflict. The present application will be described in detail with reference to the accompanying drawings and in conjunction with the embodiments.

[0019] Embodiment 1 Refer to the attached Figure 5 To Attachment Figure 7As shown, the present invention provides a purification device for marine aquaculture, including a purification working box 10, a purification chamber 11 is arranged in the purification working box 10, the left and right end faces of the purification working box 10 are respectively fixedly connected with a purification input end cover 13 and a purification output end cover 12, the purification output end cover 12 and the purification input end cover 13 seal and fix the left and right ends of the purification chamber 11, the purification input end cover 13 and the purification output end cover 12 are respectively fixedly connected with a purification input pipeline 14 and a purification output pipeline 15, the purification input pipeline 14 and the purification output pipeline 15 are both connected with the purification chamber 11, a filter screen 19 is arranged in the purification chamber 11, a filter sleeve 17 is slidably connected in the purification chamber 11, and the filter sleeve 17 is provided in the filter sleeve 17. A scraper brush power shaft 50 is provided, a blade bracket 51 is fixedly connected to the left end of the scraper brush power shaft 50, a blade 52 is fixedly connected to the blade bracket 51, a scraper brush mounting plate 55 and a bristle mounting seat 54 are provided at the right end of the scraper brush power shaft 50, cleaning bristles are fixedly installed on the bristle mounting seat 54, a flow guide seat 16 is fixedly connected to the inner end surface of the purification input end cover 13, a jet guide cavity 20 is provided in the flow guide seat 16, the maximum radius of the right end of the jet guide cavity 20 is the same as the height of the blade bracket 51 in the radial direction of the scraper brush power shaft 50, and the water flow can be guided when the water flow pumped into the purification cavity 11 by the jet guide cavity 20 is circulated, so as to avoid the large-flux water flow directly impacting the driving blade 52; The purification input pipe 14 is fixedly connected to the water outlet end of the water body pumping circulation pipe, and the purification output pipe 15 discharges the water in the purification chamber 11 after mechanical filtration and purification by the filter 19 through the pipe. The solid impurities carried in the water flow filtered and treated in the purification chamber 11 are filtered and blocked by the filter 19 and retained in the space on the left side of the filter 19 in the purification chamber 11. When these solid impurities are enriched, the filter 19 is gradually blocked and the filtration flux of the filter 19 is reduced. At this time, the water pressure in the space on the left side of the filter 19 in the purification chamber 11 will continue to increase. The increase in water pressure drives the filter screen 19 and the filter sleeve 17 to slide rightward in the purification chamber 11 as a whole, and at the same time drives the scraper brush power shaft 50, the blade bracket 51 and the blade 52 in the filter sleeve 17 to move rightward. After the blade bracket 51 moves rightward, it drives the blade 52 fixedly mounted on the blade bracket 51 to enter the range of direct impact of the water flow guided by the jet guide chamber 20. The water flow guided by the jet guide chamber 20 directly impacts and drives the blade 52 and the blade bracket 51 to rotate, thereby driving the scraper brush mounting plate 55 and the bristle mounting seat 54 to rotate; The rotation of the brush mounting seat 54 drives the cleaning bristles to rotate and scrape the left end surface of the filter 19 to clean it, thereby brushing off a portion of the solid impurities retained on the filter 19, increasing the filtration flux of the filter 19, and reducing the water pressure in the space on the left side of the filter 19 in the purification chamber 11, thereby reducing the possibility of the filter 19 being completely blocked and causing filtration failure, improving the automatic cleaning effect of mechanical filtration of water bodies and the stability of filtration work, reducing the dependence of mechanical filtration maintenance on external driving energy and the adaptability to various filtration use environments, improving the utilization effect of automatic cleaning of the filter device on the transmission of water flow, reducing the obstruction and interference of the filtration state of the filter device on the circulation of water bodies, improving the mechanical filtration water flow rate and filtration speed and the stability of the filtration path, and reducing the frequency of mechanical filtration blockage maintenance and the frequency of vibration impact.

[0020] Refer to the attached Figure 5 , Attachment Figure 6 And attached Fig.14 To Attachment Fig.16 As shown, a filter working chamber 18 is provided in the filter sleeve 17, and a scraper brush power shaft 50 is rotatably connected to the circumferential side wall of the filter working chamber 18 through a fixed bracket. The right end of the scraper brush power shaft 50 is rotatably connected to a joint adjustment seat 53 through a threaded connection. The right end of the joint adjustment seat 53 is fixedly connected to a scraper brush mounting plate 55. A gap space for water flow is reserved between the joint adjustment seat 53 and the scraper brush mounting plate 55. The scraper brush mounting plate 55 is provided with evenly distributed drainage holes 56. The drainage holes 56 can circulate the water flow in the purification chamber 11 to reduce the impact of the water flow on the scraper brush mounting plate 55. Directly impact the force-bearing area, reduce the possibility of water flow impact force being transmitted to the filter sleeve 17 through the scraper brush mounting plate 55, and drive the filter sleeve 17 to shake and slide in the purification chamber 11; the right end face of the scraper brush mounting plate 55 is fixedly connected to the bristle mounting seat 54, and the rotational mounting position of the joint adjustment seat 53 is adjusted at the right end of the scraper brush power shaft 50, so as to adjust the distance between the scraper brush mounting plate 55 and the bristle mounting seat 54 and the filter screen 19, thereby adjusting the matching position of the cleaning bristles on the bristle mounting seat 54 and the filter screen 19, thereby improving the convenience of disassembly, assembly and maintenance of the filter device.

[0021] Refer to the attached Figure 5 , Attachment Figure 7 , Attachment Fig. 9 And attached Fig.10 As shown, an elastic sealing cover 29 and a return spring 31 are fixedly connected between the circumferential side wall of the left end of the purification chamber 11 and the left end face of the filter sleeve 17, and the return spring 31 is located in a sealed space formed between the return spring 31 and the circumferential side wall of the purification working box 10, and a same elastic sealing cover 29 is fixedly connected to the right end face of the filter sleeve 17, and a sealing limit sleeve 28 is fixedly connected to the right end of the purification chamber 11, and the sealing limit sleeve 28 is located on the right side of the filter sleeve 17, and the right end of the elastic sealing cover 29 located on the right side is fixedly connected to the sealing limit sleeve 28; The left and right end faces of the filter sleeve 17 are connected to the circumferential side walls of the purification chamber 11 through two elastic sealing covers 29 to form a sealed space, which can effectively prevent impurities in the water flow from corroding the structure in the sealed space and improve the service life of the overall structure of the filtering device; in addition, when filtering and treating water bodies, solid impurities deposited on the surface of the elastic sealing cover 29 inside the purification chamber 11 will be carried away with the flow of water when the filter sleeve 17 moves and drives the elastic sealing cover 29 to elastically deform and stretch, which can reduce the possibility of solid impurities being retained to form lumps and block the water flow path.

[0022] Refer to the attached Figure 5 , Attachment Figure 6 And attached Figure 8 As shown, a slag discharge through hole 21 and a cleaning flow hole 22 are provided in the lower end wall of the filter working chamber 18, the slag discharge through hole 21 is located on the right side of the cleaning flow hole 22, and the slag discharge through hole 21 is located on the left side of the filter screen 19, and a track sliding connection filter sleeve 17 is provided in the circumferential side wall of the purification chamber 11 for fixed axial guidance and limiting circumferential rotation; By arranging the filter sleeve 17 on a track and sliding axially on the circumferential side wall of the purification chamber 11, when the filter screen 19 is blocked and the water pressure in the left end space of the purification chamber 11 increases, the filter sleeve 17 slides on the fixed track to fix the sliding trajectories of the slag discharge through hole 21 and the cleaning circulation hole 22, thereby improving the accuracy of the sliding positions of the slag discharge through hole 21 and the cleaning circulation hole 22.

[0023] Refer to the attached Figure 5 , Attachment Figure 6 , Attachment Figure 8 And attached Fig.10 As shown, a group of docking gear holes 23 evenly arranged in the left and right directions are provided in the lower end wall of the purification chamber 11, and a sealing plug 24 is rotatably connected in the docking gear hole 23. The docking gear hole 23 can be connected to the cleaning flow hole 22, and the spacing between the slag discharge through hole 21 and the cleaning flow hole 22 is the same as the spacing between two adjacent docking gear holes 23; The diameter of the docking gear hole 23 is the same as that of the cleaning circulation hole 22. When two adjacent docking gear holes 23 are selected to dock and connect with the cleaning circulation hole 22 and the slag discharge through hole 21, the sealing plug 24 is rotated in the docking gear hole 23 to open the two selected docking gear holes 23, so as to facilitate the coordinated connection of the slag discharge through hole 21 and the cleaning circulation hole 22. When the docking gear hole 23 is not connected with the slag discharge through hole 21 and the cleaning circulation hole 22, the circumferential side wall of the purification working box 10 and the outer circular side surface of the filter sleeve 17 slide and cooperate to seal and cut off the connecting passage between the docking gear hole 23 and the slag discharge through hole 21 and the cleaning circulation hole 22, and guide the water flow in the purification chamber 11 through the filter screen 19 whose resistance is less than the sealing resistance of the filter sleeve 17 and the circumferential side wall of the purification chamber 11. Then, the water flow filtered by the filter screen 19 is discharged from the purification output pipe 15 after flowing through the right side space of the purification chamber 11, which can improve the smoothness of the filtration circulation passage and improve the stability of water flow filtration transmission.

[0024] Refer to the attached Figure 5 , Attachment Figure 8 And attached Figures 11 to 13 As shown, a cleaning flow pipe 25 is provided at the lower end of the purification working box 10, a positioning installation groove 32 is provided at the lower end of the purification working box 10, the docking gear hole 23 is located in the positioning installation groove 32, the cleaning flow pipe 25 is connected to the lower end of the positioning installation groove 32 in the left and right directions through a track sliding, the right end of the cleaning flow pipe 25 is fixedly connected to the main slag discharge pipe 26, the main slag discharge pipe 26 and the cleaning flow pipe 25 are connected to each other, and the cleaning flow pipe 25 and the main slag discharge pipe 26 can be docked and connected with the docking gear hole 23; The lower end of the positioning installation groove 32 is rotatably connected with a gear-adjusting threaded rod 33 through a fixed bracket, and the left end of the gear-adjusting threaded rod 33 is rotatably connected with a gear-adjusting connecting block 34, and the right end of the cleaning circulation pipe 25 is fixedly connected to the gear-adjusting connecting block 34. The purification working box 10 is convenient for positioning and installing the main slag discharge pipe 26 by providing the positioning installation groove 32, and a track is provided on the positioning installation groove 32 to slide and connect the cleaning circulation pipe 25, and two adjacent docking gear holes 23 are selected from a group of docking gear holes 23, and the sealing plugs 24 therein are rotated and removed, and then the gear-adjusting threaded rod 33 is rotated on the fixed bracket at the lower end of the purification working box 10 to drive the gear-adjusting connecting block 34 and the cleaning circulation pipe 25 to slide on the track of the positioning installation groove 32 as a whole, and the cleaning circulation pipe 25 is stopped at the position of a docking gear hole 23 located on the left side of the two selected docking gear holes 23, and the cleaning circulation pipe 25 is stopped at the position of a docking gear hole 23 located on the left side of the two selected docking gear holes 23. When the cleaning circulation pipe 25 is fixed, the main slag discharge pipe 26 is docked with the cleaning circulation pipe 25 at the position of a docking gear hole 23 located on the right side, and then the docking state between the cleaning circulation pipe 25, the main slag discharge pipe 26 and the docking gear hole 23 is fixed, thereby completing the docking installation work of selecting the docking gear hole 23 with different distances from the cleaning circulation hole 22 and the cleaning circulation pipe 25 and the main slag discharge pipe 26; the adjustment threaded rod 33 and the cleaning circulation pipe 25 and the main slag discharge pipe 26 cooperate and slide, and can select the docking gear hole 23 with different axial distances from the cleaning circulation hole 22 for docking, which improves the convenience of selecting different gears of the cleaning circulation pipe 25 and the main slag discharge pipe 26 for docking and connecting the cleaning circulation hole 22 and the slag discharge through hole 21 through the docking gear hole 23, can improve the adaptability of the filter device to adjust and use under various filtering pressures, and improve the mechanical filtering capacity of the filter device.

[0025] Refer to the attached Figure 5 To Attachment Fig.10 As shown, an opening electromagnet 30 is fixedly connected to the lower end wall of the purification chamber 11, and a permanent magnet block 27 is fixedly connected to the right end surface of the filter sleeve 17. The permanent magnet block 27 and the opening electromagnet 30 are located in a sealed space formed between the elastic sealing cover 29 and the circumferential side wall of the purification chamber 11. The magnetic force of the permanent magnet block 27 drives the permanent magnet block 27 and the opening electromagnet 30 to be close to each other. The condition is that the distance between the permanent magnet block 27 and the opening electromagnet 30 is not greater than the distance between the slag discharge through hole 21 and the cleaning flow hole 22; When the solid impurities retained in the filter working chamber 18 of the filter device increase, the filter screen 19 is blocked or retained by a large number of solid impurities, resulting in an increase in the water pressure on the left side of the filter working chamber 18. At this time, the cleaning and slag removal work is started; The increased water pressure pushes the filter screen 19 and the filter sleeve 17 to move rightward in the purification chamber 11. The pulling force of the filter sleeve 17 moving rightward drives the reset spring 31 to stretch and elastically deform until the cleaning flow hole 22 and the slag discharge through hole 21 are connected to the docking gear hole 23. The filter sleeve 17 fixed on the right end face of the filter sleeve 17 moves rightward into the matching distance with the opening electromagnet 30. Under the magnetic force of the permanent magnet block 27, the permanent magnet block 27 and the opening electromagnet 30 are automatically attracted, so that the filter sleeve 17 and the permanent magnet block 27 are pulled rightward as a whole and fit on the left end face of the opening electromagnet 30, driving the filter sleeve 17 to move further rightward, and then driving the cleaning flow hole 22 and the slag discharge through hole 22 opened in the lower end wall of the filter working chamber 18 to open. 1 is moved right to fully open the passages that match the two selected docking gear holes 23. At this time, the cleaning flow holes 22 and the slag discharge through holes 21 that are connected to the purification chamber 11 and the filter working chamber 18 are simultaneously maintained in the connection state of the maximum flux with the docking gear holes 23 that are docked with them. The increase in the blocking water pressure of the filter device directly guides the cleaning and slag discharge work of the filter device, improves the automatic start response performance of the cleaning and slag discharge of the filter device, reduces the maintenance frequency of the cleaning and slag discharge of the filter device and the dependence on the external energy monitoring drive, improves the adaptability and use range of the filter device in various different filter systems, improves the smoothness of the conduction of the cleaning and slag discharge passage of the filter device, and improves the convenience and stability of the self-cleaning and slag discharge of the filter device; After the cleaning circulation hole 22 is connected with the cleaning circulation pipe 25 through the docking gear hole 23, the slag discharge through hole 21 is connected with the cleaning circulation pipe 25 through the docking gear hole 23. The slag discharge through hole 21 is closer to the filter screen 19 than the cleaning circulation hole 22. When the water flow impact in the purification chamber 11 drives the blade 52 to rotate and drives the cleaning bristles on the bristle mounting seat 54 to clean the filter screen 19, the solid impurities retained on the filter screen 19 are disturbed and follow the water flow. The cleaning circulation hole 22 closer to the flow guide seat 16 has relatively less resistance to the water flow. At this time, the water flow guided into the purification chamber 11 by the jet guide chamber 20 passes through the cleaning circulation pipe 25 at a high speed. At the same time, the main slag discharge pipe 26 is also connected to the purification chamber 11 through the slag discharge through hole 21, and a part of the water flow passes through it. The water flow flowing out through the cleaning circulation pipe 25 and the main slag discharge pipe 26 drives the solid impurities retained on the filter screen 19 and disturbed by the cleaning bristles on the bristle mounting seat 54 to be discharged to complete the cleaning slag discharge work. In addition, the water flow velocity in the cleaning circulation pipe 25 is greater than that in the main slag discharge pipe 26. Therefore, in the communication space between the cleaning circulation pipe 25 and the main slag discharge pipe 26, the pressure in the cleaning circulation pipe 25 is relatively low, which has an attractive strengthening effect on the water flow in the main slag discharge pipe 26, and can further promote the main slag discharge pipe 26 to communicate with the docking gear hole 23 and the slag discharge through hole 21 to suck out the disturbed solid impurities in the right end of the filter working chamber 18, thereby improving the effect of the filter device automatically cleaning and removing the filter residue by using the power of the water flow, and improving the cleanliness of the filter residue automatically discharged by the filter device; After cleaning and slag discharge, the opening electromagnet 30 can be started to generate a magnetic force that repels the permanent magnet block 27, thereby driving the permanent magnet block 27 and the opening electromagnet 30 to separate, guiding the filter sleeve 17 to move left in the purification chamber 11, and cooperating with the elastic deformation recovery of the reset spring 31 to generate a contraction pulling force to pull the filter sleeve 17 to slide to the left end of the purification chamber 11 to restart the filtering state. At this time, the slag discharge through hole 21 and the cleaning flow hole 22 also follow the filter sleeve 17 to move out of the connection state with the docking gear hole 23, and the outer cylindrical surface of the filter sleeve 17 and the circumferential side wall of the purification chamber 11 are restored to a sealed state, and the cleaned filter screen 19 is reactivated to mechanically filter the water flow entering the purification chamber 11, thereby improving the stability and convenience of the reset control of the filter device after cleaning and slag discharge.

[0026] Embodiment 2 Refer to the attached Figure 5 , Attachment Figure 6 And attached Fig.14 To Attachment Fig.16 As shown, the bristle mounting seat 54 fixedly mounted on the right end of the scraper brush mounting plate 55 can be adjusted to be arranged in multiple fixed arrays with different orientation angles. When the scraper brush power shaft 50 rotates to drive the scraper brush mounting plate 55 and the bristle mounting seat 54 to rotate, it can drive multiple groups of cleaning bristles on the bristle mounting seats 54 with different orientations to perform rotational scraping and cleaning on the left end surface of the filter 19 at different orientation angles, which can improve the scraping and cleaning effect of solid impurities retained on the filter 19 and reduce the possibility of clogging in cleaning dead corners.

[0027] Embodiment 3 Refer to the attached Figure 1 To Attachment Figure 4 , Attachment Fig.11 To Attachment Fig.13 And attached Fig.17 As shown, a diffuser output seat 36 corresponding to the position of the filter screen 19 is provided on the right side of the filter screen 19 in the purification chamber 11, and the diffuser output seat 36 is fixed and connected to a backwash pipe 35 provided in the circumferential side wall of the purification chamber 11; A merging frame 65 is fixedly connected to the purification working box 10, and a transfer box 60 is fixedly connected to the purification working box 10 through the merging frame 65. A mounting base 67 is fixedly connected to the lower end surface of the merging frame 65. A temporary storage sealing end cover 63 is fixedly connected to the right end of the transfer box 60, and a temporary storage chamber 61 is provided in the transfer box 60. A buoyancy spring 64 is fixedly connected to the left end wall of the temporary storage chamber 61, a floating slide plate 62 is fixedly connected to the right end of the buoyancy spring 64, the floating slide plate 62 is slidably connected to the temporary storage chamber 61, a transfer output pipe 66 is fixedly connected to the right end of the circumferential side wall of the temporary storage chamber 61, the transfer output pipe 66 is fixedly connected to the recoil pipe 35 through a pipe, the left end wall of the temporary storage chamber 61 is fixedly connected to the purification output pipe 15 through a pipe, and the left end wall of the temporary storage chamber 61 is fixedly connected to the recoil pipe 35 through a one-way pipe of an electromagnetic control switch that maintains an associated feedback control state with the opening electromagnet 30; When the filtering device is performing cleaning and slag discharge work, the water flow transmitted into the left end space of the temporary storage chamber 61 through the purification output pipe 15 is reduced, and the speed increase of the filtered water flow transferred in the space where the floating slide plate 62 is connected to the buoyancy spring 64 in the temporary storage chamber 61 and discharged through the transfer output pipe 66 is reduced. Under the action of the contraction elastic force of the buoyancy spring 64, the floating slide plate 62 moves to the left in the temporary storage chamber 61 and passes over the transfer output pipe 66 to block the discharge path. The floating slide plate 62 continues to move to the left. At the same time, the permanent magnet block 27 and the opening electromagnet 30 enter the fitting state to open the cleaning flow hole 22 and the docking When the passage of the gear hole 23 is blocked, the electromagnetic linkage control opens the one-way pipe fixedly connected to the recoil pipe 35 in the left end wall of the temporary storage chamber 61, so that when the buoyancy spring 64 drives the floating slide plate 62 to continue to move left in the temporary storage chamber 61, the clean water temporarily stored in the temporary storage chamber 61 is transported to the purification chamber 11 through the recoil pipe 35 to reversely flush the filter screen 19. The reverse flushing water flows through the filter screen 19 and is discharged along the cleaning and slag discharge passage, which improves the backwashing control effect and backwashing smoothness of the filter device, and further improves the cleanliness and cleaning speed of the cleaning and slag discharge of the filter device.

[0028] The embodiments and / or implementation methods described above are only used to illustrate the preferred embodiments and / or implementation methods for realizing the technology of the present invention, and are not intended to impose any form of limitation on the implementation methods of the technology of the present invention. Any technical personnel in this field may make slight changes or replace them with other equivalent embodiments without departing from the scope of the technical means disclosed in the content of the present invention, but they should still be regarded as technologies or embodiments that are essentially the same as the present invention.

[0029] This article uses specific examples to illustrate the principles and implementation methods of this application. The description of the above embodiments is only used to help understand the method and its core ideas of this application. The above is only the preferred implementation method of this application. It should be pointed out that due to the limitations of textual expression and the objective existence of infinite specific structures, ordinary technicians in this technical field can make several improvements, modifications or changes without departing from the principles of this application, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the concept and technical solution of the invention to other occasions without improvement, should be regarded as the scope of protection of this application.

Claims

1. A purification device for marine aquaculture, comprising a purification working box (10), wherein a purification chamber (11) is provided in the purification working box (10), a purification input end cover (13) and a purification output end cover (12) are fixedly connected to the left and right end faces of the purification working box (10), respectively, and a filter screen (19) is provided in the purification chamber (11), characterized in that: A filter sleeve (17) is slidably connected in the purification chamber (11), a scraper brush power shaft (50) is arranged in the filter sleeve (17), a blade bracket (51) is fixedly connected to the left end of the scraper brush power shaft (50), a blade (52) is fixedly connected to the blade bracket (51), a scraper brush mounting plate (55) and a bristle mounting seat (54) are arranged at the right end of the scraper brush power shaft (50), and a flow guide seat (16) is fixedly connected to the inner end surface of the purification input end cover (13), and a jet guide chamber (20) is arranged in the flow guide seat (16).

2. A purification device for marine aquaculture according to claim 1, characterized in that: A filter working chamber (18) is provided in the filter sleeve (17), and the circumferential side wall of the filter working chamber (18) is rotatably connected to the scraper brush power shaft (50) via a fixed bracket. The right end of the scraper brush power shaft (50) is rotatably connected to a joint adjustment seat (53), and the right end of the joint adjustment seat (53) is fixedly connected to the scraper brush mounting plate (55). The scraper brush mounting plate (55) is provided with evenly distributed drainage holes (56), and the right end surface of the scraper brush mounting plate (55) is fixedly connected to the bristle mounting seat (54).

3. A purification device for marine aquaculture according to claim 2, characterized in that: An elastic sealing cover (29) and a return spring (31) are fixedly connected between the circumferential side wall at the left end of the purification chamber (11) and the left end face of the filter sleeve (17), and an identical elastic sealing cover (29) is fixedly connected to the right end face of the filter sleeve (17).

4. A purification device for marine aquaculture according to any one of claims 1 to 3, characterized in that: A slag discharge through hole (21) and a cleaning circulation hole (22) are provided in the lower end wall of the filtering working chamber (18); the slag discharge through hole (21) is located on the right side of the cleaning circulation hole (22), and the slag discharge through hole (21) is located on the left side of the filter screen (19).

5. A purification device for marine aquaculture according to claim 4, characterized in that: A docking position hole (23) is provided in the lower end wall of the purification chamber (11), a sealing plug (24) is rotatably connected in the docking position hole (23), and the docking position hole (23) can be docked and communicated with the cleaning circulation hole (22).

6. A purification device for marine aquaculture according to claim 5, characterized in that: A cleaning circulation pipe (25) is provided at the lower end of the purification working box (10), and a main slag discharge pipe (26) is fixedly connected to the right end of the cleaning circulation pipe (25). The main slag discharge pipe (26) and the cleaning circulation pipe (25) are communicated with each other. Both the cleaning circulation pipe (25) and the main slag discharge pipe (26) can be connected to the docking gear hole (23) in a docking manner.

7. A purification device for marine aquaculture according to claim 6, characterized in that: An opening electromagnet (30) is fixedly connected to the lower end wall of the purification chamber (11), and a permanent magnet block (27) is fixedly connected to the right end surface of the filter sleeve (17).

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