Flushing device for filter mesh of aquaculture microstrainer

Abstract

A flushing device for a filter mesh of an aquaculture microfilter comprises a backwashing assembly, an anti-vibration device, a filter roller and a box body, and is characterized in that the filter roller is arranged in the box body, and rotating rails with isosceles trapezoid grooves are fixed to the left end and the right end of the filter roller; a water source is not required to be additionally connected, backwashing water is filtered, whether backwashing is normally carried out or not is not required to be judged, four anti-vibration devices matched with a pressing wheel and two supporting wheels are symmetrically clamped with a rotating track, the filter roller is effectively prevented from deviating or vibrating, and a nylon gear ring fixed to the left end of the filter roller is meshed with a nylon power gear, so that the filter roller is prevented from deviating or vibrating. A dirt collecting groove which is matched with the filtering roller in length and inclines downwards from left to right is arranged, a cover door is supported by a nitrogen spring booster, and an anti-vibration device access hole is formed in the corresponding position. The problems that a backwashing assembly combination design cannot be used, four anti-vibration devices matched with one pressing wheel and two supporting wheels cannot be used, nylon gears and nylon gear rings cannot be used and the like are effectively solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of aquaculture technology, especially to a filter screen flushing device of aquaculture microfilter. BACKGROUND

[0002] The working principle of the aquaculture microfilter is mainly to use a rotatable drum for filtration. The outer part of the drum has a dense stainless steel screen. The treated wastewater enters the microfilter drum in the axial direction and flows out of the screen in a radial radiation shape. The impurities in the water are trapped on the inner surface of the filter screen on the microfilter drum. When the impurities trapped on the filter screen are brought to the upper part of the microfilter by the rotating drum, they are backflushed by the pressure washing water and flow out of the slag discharge groove. In recent years, microfilter technology has been continuously improved and developed and has been widely applied to many fields. However, the existing aquaculture microfilter cannot use a backflushing component design, cannot backflush without additional water source, cannot filter the backflushing water in advance, cannot judge whether the backflushing process is normal by monitoring the pressure change of the backflushing component, cannot use a vibration prevention device with one pressure roller and two supporting rollers, cannot effectively prevent the filter drum from deviating and vibrating during operation, cannot keep the filter drum running smoothly, cannot use nylon gears and gear rings, cannot effectively enhance the transmission capacity, wear resistance, lubricity, impact resistance, and fatigue resistance of the gears and gear rings, and cannot reduce the overall weight and operating cost of the device and reduce noise.

[0003] The invention patent with the patent number ZL202420474320.X discloses a "microfilter with independent spraying flushing system". The utility model includes a filter system and a spraying system. The filter system includes a drum, a breeding water inlet pipe, a power distribution control box, a motor, and a filtered water tank. The spraying system includes a spraying water tank, a fresh water inlet pipe, an upper water pipe, a spraying water pump, and a spraying pipe. The spraying water tank is located on one side of the filtered water tank. The fresh water inlet pipe is arranged in the upper part of the spraying water tank through the side wall of the spraying water tank. The water inlet of the upper water pipe is arranged in the lower part of the spraying water tank. The upper water pipe is connected to the spraying water pump and the spraying pipe. The microfilter provided by the utility model has an independent fresh water spraying flushing system and does not consume breeding water. The wastewater discharged after filtration by the microfilter under seawater breeding conditions does not contain salinity, which can be directly used for irrigation of crops or used for making organic fertilizer through sedimentation and fermentation, promoting the green development of the aquaculture industry and making it more intelligent and safe.

[0004] The patent No. ZL202311312464.1 discloses a "circulating aquaculture water filtering method", which proposes a new multi-stage layered microfiltration method to ensure the flow direction of the circulating water unchanged on the basis of realizing multi-stage filtration, so as to achieve the design purpose of improving the filtering efficiency and reverse cleaning efficiency. The circulating aquaculture water filtering method comprises the following steps: 1) filtering, the water of the aquaculture product is introduced into the tank through the water inlet pipe, sequentially flows through a plurality of microfiltration assemblies, and is discharged from the tank along the water outlet pipe; the water filtered by the plurality of microfiltration assemblies is discharged from the tank along the water outlet pipe and continues to enter the aquaculture circulation process; 2) reverse flushing, the liquid level sensor arranged at the bottom of each reverse flushing assembly detects the water level change in the area in real time; when the liquid level sensor detects that the water level in the area exceeds the warning value, the backflushing pump is started, the water in the tank is sprayed out through the backflushing assembly, and the sprayed water is sprayed to the back of the microfiltration assembly for reverse flushing; the particulate matter flushed from the microfiltration assembly is discharged from the tank. SUMMARY

[0005] To solve the above technical problems, the utility model provides a kind of aquaculture microfilter filter screen washing device, is provided with backflushing high pressure water-saving type water pump, Y filter, backflushing pressure gauge, pressure wheel, carrier wheel, pressure wheel spring, tension spring, nylon power gear and nylon gear ring etc., it is achieved that no additional water source is connected when backflushing, filter backflushing water in advance and whether the backflushing process is normally carried out is judged by monitoring the pressure change of backflushing assembly, effectively prevent the deviation of filter cylinder in work, vibration, maintain the stable operation of filter cylinder, effectively enhance the transmission capacity, wear resistance, lubricity, impact resistance and fatigue resistance of gear and gear ring, reduce the overall weight and operating cost of device and reduce noise, effectively solve the above technical problems.

[0006] To achieve the above purpose, the technical scheme adopted by the utility model to solve its technical problems is:

[0007] The aquaculture microfilter filter screen washing device, including backflushing assembly, anti-vibration device, filter cylinder and box, is characterized by,

[0008] The box is set as a cuboid structure, the four corner positions of the box are provided with supporting legs, the upper end of the supporting leg is fixedly provided with a pair of parallel cross beams and a pair of parallel longitudinal beams, the two ends of the cross beam and the two ends of the longitudinal beam are correspondingly fixed vertically through the fixing piece to form a parallelogram frame structure at the upper end of the box.

[0009] The filter roller is arranged inside the box body, is arranged as a hollow cylindrical structure, the axis of the filter roller is located at the upper side of the axial center position of the box body and is on the same vertical plane, both ends of the filter roller are fixedly provided with rotating tracks, the rotating tracks are arranged as circular ring structures, the inner side of the rotating track at the left end of the filter roller is fixedly provided with a nylon gear ring, the nylon gear ring is arranged as a circular ring structure, the outer side surface and the inner side surface of the rotating track are both arranged as isosceles trapezoidal groove structures, the upper end surface of the box body on the left side of the filter roller is provided with a support table, the upper side of the support table is provided with a driving structure to provide rotating power for the support table, both ends of the filter roller are provided with anti-vibration devices to ensure stable operation.

[0010] The backwashing assembly comprises a backwashing high-pressure water-saving pump, a Y-shaped filter and a backwashing pressure gauge, the backwashing high-pressure water-saving pump is arranged at the rear side of the support table, the Y-shaped filter is arranged at a preset position at the front end of the backwashing high-pressure water-saving pump, and the backwashing pressure gauge is arranged at the water outlet end of the Y-shaped filter, through the combined design of the backwashing assembly, the purpose of not needing to additionally connect a water source, filtering backwashing water and judging whether the backwashing process is normally performed by monitoring the pressure change of the backwashing assembly is achieved.

[0011] The backwashing assembly further comprises a support, a water distribution pipe and a spray head, the support is provided with two, the two supports are fixedly arranged at preset positions on the side plates at the left and right ends, the two ends of the water distribution pipe are fixedly arranged at the upper end portions of the two supports, the water distribution pipe is arranged above the side parallel to the filter roller, a preset number of spray heads are fixedly and communicatively arranged on the outer wall of the water distribution pipe, the nozzles of the spray heads all face the filter roller, the water inlet end of the water distribution pipe is connected in communication with the water outlet end of the Y-shaped filter through a pipeline, the water inlet end of the Y-shaped filter is connected in communication to the bottom of the box body through a pipeline, and the other end of the water distribution pipe is arranged as a sealing structure.

[0012] The driving structure comprises a sliding frame body and a nylon power gear, the driving structure is fixedly arranged at the middle position of the left end beam of the box body through a stand and a fixing piece, the inner side of the sliding frame body is vertically and symmetrically provided with a sliding guide rail, the middle part of the upper end of the sliding frame body is provided with an adjusting bolt, the lower end of the adjusting bolt is fixedly connected with a tension spring, the lower end of the tension spring is fixedly connected with the nylon power gear through the transmission shaft of the transmission motor in a rotary connection manner, the nylon power gear is engaged with the nylon gear ring, sliding clamps are arranged on the two sides of the nylon power gear, and the sliding clamps are connected with the sliding guide rail in a sliding manner.

[0013] The upper end of the box is provided with a machine cover, the machine cover is provided with a preset size and shape, the machine cover is composed of side plates, horizontal plates and a preset number of cover doors, the left and right ends of the machine cover are provided with side plates, the center positions of the upper ends of the two side plates are fixedly connected with horizontal plates, the left and right sides of the horizontal plates are provided with a preset number of cover doors, the inner surface of the cover door is provided with a nitrogen spring booster on one side, the cover door is rotatably connected with the horizontal plate through a hinge, a handle is fixedly arranged on the preset position of the outer surface of the cover door, the two side plates are provided with vibration isolation device access openings, the vibration isolation device access openings are respectively arranged at the corresponding positions of the vibration isolation devices, and the vibration isolation device access openings are respectively connected with cover plates through bolts.

[0014] The vibration isolation device includes one pressure wheel and two supporting wheels, the radial section of the pressure wheel is a polygonal structure with a rectangular middle and two isosceles trapezoidal ends, the size and shape of the two isosceles trapezoidal ends are matched with and equal to the size and shape of the isosceles trapezoidal groove on the outer side surface of the rotating track, the pressure wheel is clamped in the isosceles trapezoidal groove on the outer side surface of the rotating track in a rolling and rotating manner, and the pressure wheel is fixedly arranged at a preset position of the longitudinal beam through a pressure wheel spring and a fixing member.

[0015] The radial section of the supporting wheel is a polygonal structure with a rectangular middle and two isosceles trapezoidal ends, the size and shape of the two isosceles trapezoidal ends are matched with and equal to the size and shape of the isosceles trapezoidal groove on the inner side surface of the rotating track, and the supporting wheel is clamped in the isosceles trapezoidal groove on the inner side surface of the rotating track in a rolling and rotating manner.

[0016] The axial centers of the one pressure wheel and the two supporting wheels are located at the three vertices of an equilateral triangle, four vibration isolation devices are arranged, and the four vibration isolation devices are symmetrically clamped on the rotating track, thereby effectively preventing the axial deviation or vibration of the filter cylinder, effectively absorbing the up-down vibration energy of the filter cylinder through the cooperation of the tension spring and the pressure wheel spring, achieving the smooth operation of the filter cylinder, reducing the damage of vibration to the filter cylinder, and prolonging the service life of the filter cylinder.

[0017] The left end face of the filtering roller is fixedly provided with a blocking plate, the outer surface of the filtering roller is provided with a metal filter screen, the metal filter screen is made of 200-mesh 316L material, the outer surface of the metal filter screen is fixedly provided with a mesh outer keel, and the inner surface of the filtering roller is provided with a mesh honeycomb inner keel.

[0018] The liquid level meter is arranged outside the box body, a sensor of the liquid level meter is arranged at the bottom of the box body, a power distribution control box is fixedly arranged at the middle position of the support table, a base of the transmission motor is fixedly connected to the upper end of the power distribution control box, a matching protective cover is arranged outside the transmission motor, the protective cover is provided with a heat dissipation window, and an IP65 waterproof junction box is fixedly arranged on the side of the power distribution control box.

[0019] The backwashing high-pressure water-saving pump, the liquid level meter, the transmission motor and the IP65 waterproof junction box are electrically connected to the power distribution control box through cables, the power distribution control box is connected to commercial power through a cable, and the sensor of the liquid level meter is connected to the controller of the power distribution control box through a cable.

[0020] The utility model discloses the beneficial effects are:

[0021] The utility model discloses set up backflushing subassembly and with its corresponding backflushing high-pressure water-saving pump, Y type filter and backflushing pressure gauge etc., can reach when backflushing without additional access water source, advance filtration backflushing water and judge whether backflushing process is normal through monitoring backflushing subassembly pressure change, effectively solved the problem that cannot use backflushing subassembly combination design, cannot reach when backflushing without additional access water source, cannot reach advance filtration backflushing water, cannot reach judge whether backflushing process is normal through monitoring backflushing subassembly pressure change.

[0022] The utility model discloses set up anti -vibration device and with its corresponding pressure wheel, godet, pressure wheel spring and tight spring etc., can reach effectively prevent filtering roller from deviating in work, vibration, keep filtering roller steady operation, effectively solved the problem that cannot use one pressure wheel and two godets four anti -vibration devices of cooperation, cannot effectively prevent filtering roller from deviating in work, vibration, cannot reach keep filtering roller steady operation.

[0023] The utility model discloses a nylon gear ring and nylon power gear and corresponding column, sliding frame body, sliding guide, adjusting bolt and sliding clamping plate etc. BRIEF DESCRIPTION OF DRAWINGS

[0024] ATTACHMENT Figure 1 It is the structure schematic diagram of the utility model;

[0025] ATTACHMENT Figure 2 It is the front view structure schematic diagram of the utility model;

[0026] ATTACHMENT Figure 3 It is the left view structure schematic diagram of the utility model;

[0027] ATTACHMENT Figure 4 It is the right view structure schematic diagram of the utility model Figure 1 ;

[0028] ATTACHMENT Figure 5 It is the right view structure schematic diagram of the utility model Figure 2 ;

[0029] ATTACHMENT Figure 6 It is the structure schematic diagram of the utility model A-A section.

[0030] LEGEND KEY:

[0031] 1. backwashing assembly, 2. backwashing high-pressure water-saving pump, 3. Y-type filter, 4. backwashing pressure gauge, 5. support, 6. water distribution pipe, 7. spray head, 8. nozzle, 9. anti-vibration device, 10. press wheel, 11. idler wheel, 12. press wheel spring, 13. tension spring, 14. anti-vibration device access hole, 15. cover plate, 16. filter drum, 17. rotating track, 18. box, 19. leg, 20. cross beam, 21. longitudinal beam, 22. support platform, 23. nylon gear ring, 24. drive structure, 25. stand, 26. sliding frame, 27. nylon power gear, 28. sliding guide rail, 29. adjusting bolt, 30. sliding clamping plate, 31. machine cover, 32. side plate, 33. cross plate, 34. cover door, 35. nitrogen spring booster, 36. handle, 37. blocking plate, 38. metal filter screen, 39. mesh outer keel, 40. mesh honeycomb inner keel, 41. sewage collection structure, 42. sewage collection tank, 43. sewage outlet, 44. water collection plate, 45. splash-proof water plate, 46. U-shaped groove, 47. liquid level meter, 48. power distribution control box, 49. transmission motor, 50. protective cover, 51. heat dissipation window, 52. IP65 waterproof junction box. DETAILED DESCRIPTION

[0032] COMBINATION Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and examples are further described in detail to enable the public to better grasp the implementation method of the utility model, and the specific implementation scheme of the utility model is as follows:

[0033] The filter screen washing device of the aquaculture microfilter comprises a backwashing assembly 1, an anti-vibration device 9, a filter drum 16 and a box 18, characterized in that,

[0034] The box 18 is provided in a rectangular parallelepiped structure, four corner positions of the box 18 are provided with legs 19, upper ends of the legs 19 are fixedly provided with a pair of parallel cross beams 20 and a pair of parallel longitudinal beams 21, both ends of the cross beams 20 and both ends of the longitudinal beams 21 are respectively correspondingly fixedly connected through fixing members in a perpendicular mode, thereby forming a parallelogram frame structure at the upper end of the box 18;

[0035] The filter roller 16 is arranged inside the box 18, the filter roller 16 is arranged as a hollow cylindrical structure, the axis of the filter roller 16 is located on the upper side of the axial center position of the box 18 and is in the same vertical plane, both ends of the filter roller 16 are fixedly provided with rotating tracks 17, the rotating tracks 17 are arranged as a circular ring structure, the inner side of the left end rotating track 17 of the filter roller 16 is fixedly provided with a nylon gear ring 23, the nylon gear ring 23 is arranged as a circular ring structure, the outer side surface and the inner side surface of the rotating track 17 are both arranged as isosceles trapezoidal groove structures, the upper end surface of the box 18 on the left side of the filter roller 16 is provided with a support table 22, one end of the filter roller 16 is provided with a driving structure 24 to provide rotating power for it, both ends of the filter roller 16 are provided with anti-vibration devices 9 to ensure its stable operation.

[0036] The backwashing assembly 1 comprises a backwashing high-pressure water-saving type water pump 2, a Y-type filter 3 and a backwashing pressure gauge 4, the backwashing high-pressure water-saving type water pump 2 is arranged on the rear side of the support table 22, the Y-type filter 3 is arranged at a preset position on the front end of the backwashing high-pressure water-saving type water pump 2, and the backwashing pressure gauge 4 is arranged at the water outlet end of the Y-type filter 3, the combination design of the backwashing assembly 1 achieves the use of water quality in the box 18 during backwashing, without the need to additionally connect a water source, filter backwashing water before backwashing, prevents blockage and judges whether the backwashing process is normally carried out by monitoring the pressure change of the backwashing assembly 1, and timely maintenance and maintenance purposes are achieved.

[0037] The backwashing assembly 1 further comprises a support 5, a water distribution pipe 6 and a spray head 7, the support 5 is provided with two, two supports 5 are fixedly arranged at preset positions on the left and right end side plates 32, respectively, the two ends of the water distribution pipe 6 are fixedly arranged at the upper end portions of the two supports 5, respectively, the water distribution pipe 6 is arranged above the side parallel to the filter roller 16, a plurality of preset spray heads 7 are fixedly and communicatively arranged on the outer wall of the water distribution pipe 6, the nozzles 8 of the spray heads 7 are all arranged towards the filter roller 16, the water inlet end of the water distribution pipe 6 is connected in communication with the water outlet end of the Y-type filter 3 through a pipeline, the water inlet end of the Y-type filter 3 is connected in communication to the bottom of the box 18 through a pipeline, and the other end of the water distribution pipe 6 is arranged as a sealing structure.

[0038] The driving structure 24 includes a sliding frame body 26 and a nylon power gear 27, and is fixedly arranged at the middle position of the left end cross beam 20 of the box body 18 through a stand 25 and a fixing piece, the inner side of the sliding frame body 26 is vertically symmetrically provided with a sliding guide rail 28, the middle part of the upper end of the sliding frame body 26 is provided with an adjusting bolt 29, the lower end of the adjusting bolt 29 is fixedly connected with a tension spring 13, the lower end of the tension spring 13 is fixedly connected with the nylon power gear 27 in a rotating connection manner through the transmission shaft of the transmission motor 49, the nylon power gear 27 is engaged with the nylon gear ring 23, and the two sides of the nylon power gear 27 are provided with sliding clamping plates 30 which are connected with the sliding guide rail 28 in a sliding manner.

[0039] The upper end of the box body 18 is provided with a machine cover 31 of a predetermined size and shape, the machine cover 31 is composed of side plates 32, a horizontal plate 33 and a predetermined number of cover doors 34, the left and right ends of the machine cover 31 are provided with side plates 32, the horizontal plate 33 is fixedly connected with the center position of the upper end of the two side plates 32, a predetermined number of cover doors 34 are arranged on the front and rear sides of the horizontal plate 33, a nitrogen spring booster 35 is arranged on one side of the inner surface of the cover door 34, the cover door 34 is rotatably connected with the horizontal plate 33 through a hinge, a handle 36 is fixedly arranged at a predetermined position on the outer surface of the cover door 34, and the two side plates 32 are both provided with a vibration isolation device access opening 14, the vibration isolation device access opening 14 is arranged at the corresponding position of the vibration isolation device 9 respectively, and the vibration isolation device access opening 14 is connected with a cover plate 15 through a bolt respectively.

[0040] The vibration isolation device 9 includes one pressure wheel 10 and two supporting wheels 11, the radial section of the pressure wheel 10 is arranged as a polygonal structure with a rectangular middle part and two isosceles trapezoidal ends, the size and shape of the two isosceles trapezoidal ends are matched with and equal to the size and shape of the isosceles trapezoidal groove on the outer surface of the rotating track 17, the pressure wheel 10 is clamped in the isosceles trapezoidal groove on the outer surface of the rotating track 17 in a rolling rotation manner, and the pressure wheel 10 is fixedly arranged at a predetermined position of the longitudinal beam 21 through a pressure wheel spring 12 and a fixing piece.

[0041] The supporting wheel 11 is fixedly arranged at a preset position of the longitudinal beam 21 by a fixing member, the shaft centers of the one pressure wheel 10 and the two supporting wheels 11 are located at the three vertices of an equilateral triangle, the four anti-vibration devices 9 are symmetrically arranged on the rotating track 17, the anti-vibration devices 9 effectively prevent the axial deviation or vibration of the filter drum 16, the cooperation of the tension spring 13 and the pressure wheel spring 12 effectively absorbs the up-and-down vibration energy of the filter drum 16, the stable operation of the filter drum 16 is ensured, the damage of the filter drum 16 caused by vibration is reduced, and the service life of the filter drum 16 is prolonged.

[0042] Further comprising a sewage collecting structure 41, the sewage collecting structure 41 comprises a sewage collecting tank 42 and a sewage outlet 43, the sewage collecting tank 42 comprises a water collecting plate 44, a splash-proof plate 45 and a U-shaped groove 46, two ends of the U-shaped groove 46 are fixedly connected with the water collecting plate 44 and the lower end of the splash-proof plate 45 respectively, the sewage collecting tank 42 is arranged as an upwardly open structure, the sewage outlet 43 is fixedly connected with the right end of the sewage collecting tank 42, the left end of the sewage collecting tank 42 is arranged as a sealed structure, the left end of the sewage collecting tank 42 is fixedly arranged on the side plate 32 at the left end through support members and bolts, the length of the sewage collecting tank 42 matches the length of the filter drum 16, the sewage collecting tank 42 is arranged as a downwardly inclined structure from left to right, the upper edges of the water collecting plate 44 and the splash-proof plate 45 match the inner surface of the filter drum 16, and the upper end of the splash-proof plate 45 is higher than the upper end of the water collecting plate 44.

[0043] The left end surface of the filter drum 16 is fixedly provided with a blocking plate 37, the outer surface of the filter drum 16 is provided with a metal filter screen 38, the metal filter screen 38 is made of 200-mesh 316L material, the outer surface of the metal filter screen 38 is fixedly provided with a mesh outer keel 39, and the inner surface of the filter drum 16 is provided with a mesh honeycomb inner keel 40.

[0044] Further comprising a liquid level meter 47, the liquid level meter 47 is arranged on the outer side of the box body 18, the sensor of the liquid level meter 47 is arranged at the bottom of the box body 18, a power distribution control box 48 is fixedly arranged at the middle position of the support table 22, the upper end of the power distribution control box 48 is fixedly connected with the base of a transmission motor 49, a matching protective cover 50 is arranged on the outer side of the transmission motor 49, the protective cover 50 is provided with a heat dissipation window 51, and the side of the power distribution control box 48 is fixedly provided with an IP65 waterproof junction box 52.

[0045] The backwashing high-pressure water-saving pump 2, the liquid level meter 47, the transmission motor 49 and the IP65 waterproof junction box 52 are connected with the power distribution control box 48 through cables, the power distribution control box 48 is connected with the mains through cables, and the sensor of the liquid level meter 47 is connected with the controller of the power distribution control box 48 through cables.

[0046] The working principle and working process of the utility model are as follows: Specific embodiment one:

[0047] In the seawater breeding enterprise using the water product breeding micro filter machine filter screen washing device, first check the device of all kinds of equipment is normal, seawater breeding pond water quality to be filtered is pumped to the filter drum 16 by the external water pump, the filtered clean water quality is introduced into the seawater breeding pond through the pipeline, the sewage outlet 43 is connected with the sewage collection container through the pipeline, the power distribution control box 48 is electrically connected, the power of all kinds of electrical equipment in the device is turned on, the power plug of the external water pump is inserted into the IP65 waterproof junction box 52, and power is provided for the external water pump, the staff sets the maximum value and minimum value of the liquid level meter 47 by operating the controller in the power distribution control box 48, when the liquid level in the box body 18 is lower than the set minimum value, the device automatically starts the backwashing program;

[0048] Then start the external water pump, and draw the seawater breeding pond water quality to be filtered into the filter drum 16, and the staff presses the start button in the power distribution control box 48, the water product breeding micro filter machine filter screen washing device starts to work, the driving structure 24 starts to work, the transmission shaft of the transmission motor 49 drives the filter drum 16 to rotate through the nylon power gear 27 and the nylon gear ring 23, and the four anti-vibration devices 9 composed of one pressure roller 10 and two supporting rollers 11 are symmetrically arranged on the rotating track 17, which effectively prevents the filter drum 16 from being axially offset or vibrated, the driving structure 24 is matched with the vertical column 25, the sliding frame body 26, the sliding guide rail 28, the adjusting bolt 29, the sliding clamping plate 30, the tension spring 13 and the pressure roller spring 12, which effectively absorbs the up and down vibration energy of the filter drum 16, the above design ensures that the filter drum 16 runs stably, reduces the damage to the filter drum 16 caused by vibration, prolongs the service life of the filter drum 16, and the filtered water quality is filtered under the metal filter screen 38, the filtered clean water quality flows into the box body 18, the impurities are left in the metal filter screen 38 and the net piece honeycomb inner keel 40, and the filtered clean water quality is introduced into the seawater breeding pond through the pipeline. Specific embodiment two:

[0049] When the metal filter screen 38 and the mesh honeycomb inner keel 40 are relatively clean, the water level of the clean water in the box 18 gradually rises. When the water product breeding micro-filter screen flushing device works for a period of time, and the impurities on the metal filter screen 38 and the mesh honeycomb inner keel 40 accumulate to a certain degree, the water level of the clean water in the box 18 gradually decreases. When the water level decreases to a preset minimum value, the sensor of the liquid level meter 47 sends a signal to the controller of the power distribution control box 48, and the controller automatically starts the power supply of the backwashing high-pressure water-saving pump 2. The backwashing high-pressure water-saving pump 2 draws the clean water filtered at the bottom of the box 18, and the Y-type filter 3 filters the backwashing water again. The backwashing water is sprayed through the water distribution pipe 6 and the preset number of nozzles 7 towards the upper part of the filter drum 16. The cooperation of the backwashing assembly 1 realizes that no additional water source is needed during backwashing. The filtered backwashing water and the monitoring of the pressure change of the backwashing assembly 1 determine whether the backwashing process is normal. The upper edge of the water collecting plate 44 and the splash-proof water plate 45 matches the inner surface of the filter drum 16, the length of the sewage collecting tank 42 matches the length of the filter drum 16, and the upper end of the splash-proof water plate 45 is higher than the upper end of the water collecting plate 44. When the dirt and impurities adhered to the metal filter screen 38 and the mesh honeycomb inner keel 40 are washed down, they are all washed into the sewage collecting tank 42. The sewage collecting tank 42 is designed as a left-to-right downward inclined structure, which ensures that the backwashing water and the dirt and impurities are all discharged through the sewage outlet 43 into the sewage collecting container. After repeated backwashing and cleaning of the metal filter screen 38 and the mesh honeycomb inner keel 40, the water level of the clean water in the box 18 gradually rises. When the water level rises to a preset maximum value, the sensor of the liquid level meter 47 sends a signal to the controller of the power distribution control box 48, and the controller automatically closes the power supply of the backwashing high-pressure water-saving pump 2. The water product breeding micro-filter screen flushing device continues to work, and the water in the seawater breeding pond is filtered. When the device vibrates greatly, the power supply in the power distribution control box 48 is cut off, the cover plate 15 at the front end of the anti-vibration device maintenance opening 14 is opened, and the anti-vibration device 9 is maintained, repaired and replaced.

Claims

1. An aquaculture micro-filter filter screen washing device, comprising a backwash assembly (1), a vibration isolation device (9), a filter drum (16) and a box (18), characterized in that, the box (18) is provided as a rectangular box structure, and four corners of the box (18) are provided with supporting legs (19), the upper ends of the supporting legs (19) are fixedly provided with a pair of parallel cross beams (20) and a pair of parallel longitudinal beams (21), the two ends of the cross beams (20) and the two ends of the longitudinal beams (21) are respectively correspondingly fixedly connected through fixing members, forming a parallelogram frame structure at the upper end of the box (18); the filter drum (16) is arranged inside the box (18), the filter drum (16) is provided as a hollow cylindrical structure, the axis of the filter drum (16) is located on the upper side of the axial center position of the box (18) and is in the same vertical plane, both ends of the filter drum (16) are fixedly provided with rotating tracks (17), the rotating tracks (17) are provided as circular ring structures, the inner side of the rotating track (17) at the left end of the filter drum (16) is fixedly provided with a nylon gear ring (23), the nylon gear ring (23) is provided as a circular ring structure, the outer and inner surfaces of the rotating track (17) are both provided as isosceles trapezoidal groove structures, the upper end surface of the box (18) on the left side of the filter drum (16) is provided with a support table (22), the upper side of the support table (22) is provided with a driving structure (24) to provide rotating power, both ends of the filter drum (16) are provided with vibration isolation devices (9) to ensure smooth operation; the backwash assembly (1) comprises a backwash high-pressure water-saving pump (2), a Y-type filter (3) and a backwash pressure gauge (4), the backwash high-pressure water-saving pump (2) is arranged at the rear side of the support table (22), a Y-type filter (3) is arranged at a predetermined position at the front end of the backwash high-pressure water-saving pump (2), and a backwash pressure gauge (4) is arranged at the water outlet end of the Y-type filter (3), through the combined design of the backwash assembly (1), the purpose of not needing to additionally connect a water source for backwashing, filtering backwashing water and judging whether the backwashing process is normally performed by monitoring the pressure change of the backwash assembly (1) is achieved. The backwashing assembly (1) further comprises a support (5), a water distribution pipe (6) and a spray head (7), the support (5) is provided with two, two supports (5) are respectively fixedly arranged at the preset positions on the left and right end side plates (32), the two ends of the water distribution pipe (6) are respectively fixedly arranged at the upper end portions of the two supports (5), the water distribution pipe (6) is arranged above the side parallel to the filter cylinder (16), a plurality of spray heads (7) are fixedly and communicatively arranged on the outer wall of the water distribution pipe (6), the nozzles (8) of the spray heads (7) are all arranged towards the filter cylinder (16), the water inlet end of the water distribution pipe (6) is connected in communication with the water outlet end of the Y-shaped filter (3) through a pipeline, the water inlet end of the Y-shaped filter (3) is connected in communication to the bottom of the box body (18) through a pipeline, and the other end of the water distribution pipe (6) is provided in a sealed structure.

2. A filter screen washing device for a micro-filter for aquaculture as claimed in claim 1, characterized in that The driving structure (24) comprises a sliding frame body (26) and a nylon power gear (27), the driving structure (24) is fixedly arranged at the middle position of the left end cross beam (20) of the box body (18) through a stand column (25) and a fixing piece, the inner side of the sliding frame body (26) is vertically and symmetrically provided with a sliding guide rail (28), the middle part of the upper end of the sliding frame body (26) is provided with an adjusting bolt (29), the lower end of the adjusting bolt (29) is fixedly connected with a tension spring (13), the lower end of the tension spring (13) is fixedly connected with the nylon power gear (27) through the transmission shaft of the transmission motor (49) in a rotary connection mode, the nylon power gear (27) is engaged with the nylon gear ring (23), and the two sides of the nylon power gear (27) are provided with sliding clamping plates (30) which are connected with the sliding guide rail (28) in a sliding mode.

3. A filter screen washing device for a micro-filtering machine for aquaculture according to claim 1, characterized in that, The box body (18) is provided with a machine cover (31) of a predetermined size and shape at the upper end, the machine cover (31) is composed of side plates (32), a horizontal plate (33) and a plurality of cover doors (34), the machine cover (31) is provided with side plates (32) at the left and right ends, the horizontal plate (33) is fixedly connected to the center positions of the upper ends of the two side plates (32), a plurality of cover doors (34) are arranged on the front and rear sides of the horizontal plate (33), a nitrogen spring booster (35) is arranged on one side of the inner surface of the cover door (34), the cover door (34) is rotatably connected to the horizontal plate (33) through a hinge, a handle (36) is fixedly arranged at the preset position on the outer surface of the cover door (34), the two side plates (32) are both provided with vibration-proof device access openings (14), the vibration-proof device access openings (14) are respectively arranged at the positions corresponding to the vibration-proof devices (9), and the vibration-proof device access openings (14) are respectively connected with cover plates (15) through bolts.

4. A filter screen washing device for a micro-filtering machine for aquaculture according to claim 1, characterized in that, The anti-vibration device (9) includes a pressure wheel (10) and two supporting wheels (11), the radial section of the pressure wheel (10) is set as a polygonal structure with a rectangular middle and two isosceles trapezoidal ends, the size and shape of the two isosceles trapezoidal ends match and are equal to those of the isosceles trapezoidal groove on the outer side surface of the rotating track (17), and the pressure wheel (10) is engaged in the isosceles trapezoidal groove on the outer side surface of the rotating track (17) in a rolling and rotating manner, and the pressure wheel (10) is fixedly arranged at a preset position of the longitudinal beam (21) through a pressure wheel spring (12) and a fixing member.

5. A filter screen cleaning device for a microfilter for aquaculture as claimed in claim 4, characterized in that The anti-vibration device (9) is provided with four anti-vibration devices (9), which are symmetrically arranged on the rotating track (17) in a left-right and front-rear manner, effectively prevent the axial deviation or vibration of the filter drum (16), effectively absorb the up-down vibration energy of the filter drum (16) through the cooperation of the tension spring (13) and the pressure wheel spring (12), and achieve the purposes of stable operation of the filter drum (16), reduction of damage to the filter drum (16) caused by vibration, and prolongation of the service life of the filter drum (16).

6. A filter screen cleaning device for a microfilter for aquaculture as claimed in claim 5, characterized in that It also includes a pollution collection structure (41), which includes a pollution collection tank (42) and a pollution discharge port (43), the pollution collection tank (42) includes a water collection plate (44), a splash-proof plate (45) and a U-shaped groove (46), the two ends of the U-shaped groove (46) are fixedly connected with the lower ends of the water collection plate (44) and the splash-proof plate (45) respectively, the pollution collection tank (42) is arranged in an upwardly open structure, the right end of the pollution collection tank (42) is fixedly communicated with the pollution discharge port (43), the left end of the pollution collection tank (42) is arranged in a sealed structure, the left end of the pollution collection tank (42) is fixedly arranged on the left side plate (32) through supporting components and bolts on both sides of the left end, the length of the pollution collection tank (42) matches the length of the filter drum (16), the pollution collection tank (42) is arranged in a downwardly inclined structure from left to right, the upper edges of the water collection plate (44) and the splash-proof plate (45) match the inner surface of the filter drum (16), and the upper end of the splash-proof plate (45) is higher than the upper end of the water collection plate (44).

7. A filter screen washing device for a micro-filtering machine for aquaculture according to claim 1, characterized in that, The left end face of the filtering roller (16) is fixedly provided with a blocking plate (37), the outer surface of the filtering roller (16) is provided with a metal filter screen (38), the metal filter screen (38) is made of 200-mesh 316L material, the outer surface of the metal filter screen (38) is fixedly provided with a mesh outer keel (39), and the inner surface of the filtering roller (16) is provided with a mesh honeycomb inner keel (40).

8. A filter screen washing device for a micro-filtering machine for aquaculture according to claim 1, characterized in that, A liquid level meter (47) is further included, the liquid level meter (47) is arranged on the outer side of the box body (18), the sensor of the liquid level meter (47) is arranged at the bottom of the box body (18), the middle position of the support table (22) is fixedly provided with a power distribution control box (48), the upper end of the power distribution control box (48) is fixedly connected with the base of a transmission motor (49), the outer portion of the transmission motor (49) is provided with a matched protective cover (50), the protective cover (50) is provided with a heat dissipation window (51), and the side of the power distribution control box (48) is fixedly provided with an IP65 waterproof junction box (52).

9. A filter screen washing device for a micro-filtering machine for aquaculture according to claim 1, characterized in that, The backwashing high-pressure water-saving pump (2), the liquid level meter (47), the transmission motor (49) and the IP65 waterproof junction box (52) are connected with the power distribution control box (48) through cables, the power distribution control box (48) is connected with the mains through cables, and the sensor of the liquid level meter (47) is connected with the controller of the power distribution control box (48) through cables.

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