Centrifugal roller microfilter and fish culture device

Abstract

The utility model belongs to the technical field of fish culture equipment, and particularly relates to a centrifugal roller microfilter and a fish culture device, the centrifugal roller microfilter uses water introduced from a fish tank as power, the water is sprayed out from a power spray head to enable a roller to rotate, and the rotating roller has centrifugal force, so that the fish culture effect is improved. The water tank is provided with the power nozzle, so that water sprayed on the inner wall of the roller by the power nozzle can be thrown into the water tank from the micropores in the upper surface under the action of centrifugal force, the micropores in the roller wall of the roller break the water into fine water drops, the oxygen content in the water is increased, and the micropores in the roller wall of the roller can filter dirt in the water to play a role in purification. The centrifugal roller microfilter has a self-cleaning function, when some dirt is accumulated on the inner wall of the roller, water in the water tank can be pumped to the back-flushing spray head through the back-flushing water pipe, and the water sprayed by the back-flushing spray head enters the inner side from the outer side of the roller wall of the roller to flush away the dirt attached to the inner wall of the roller.

Description

Technical Field

[0001] The utility model belongs to the technical field of fish farming equipment, and particularly relates to a centrifugal drum microfilter and a fish farming device. Background Art

[0002] The water in the fish tank will produce impurities and harmful substances due to the fish's excrement, food residues, etc., so the water in the fish tank needs to be filtered to maintain the water quality and maintain the ecological environment required by the fish. If it is not filtered, or the filtering effect is poor, the water quality will deteriorate, which will affect the health of the fish and reduce the vitality of the fish. At present, the filtration of fish tanks is mainly carried out through equipment such as filter barrels filled with particulate matter. Although it can achieve the purpose of filtration, it needs to be disassembled and assembled when the filter barrel needs to be cleaned after a long period of use, which is not very convenient. In addition, this current filtration method basically only plays a filtering role, and the oxygenation effect is not good, so an oxygenation pump is required. Utility Model Content

[0003] The utility model aims to provide a centrifugal drum microfilter, which can be used to perform microfiltration purification and oxygenation on water in a fish tank.

[0004] In order to achieve the above objectives, the present invention adopts the following technical solutions:

[0005] Provided is a centrifugal drum microfilter, comprising a water tank, a drum, a power water pipe and a backwash water pipe, wherein the drum wall is a microporous drum wall, the drum is rotatably mounted in the water tank via a rotating mechanism, one end of the power water pipe is connected to a power nozzle, and one end of the backwash water pipe is connected to a backwash nozzle, the power nozzle is used to spray water in the power water pipe to flush the inner wall of the drum, thereby providing power for the rotation of the drum, while the water sprayed by the power nozzle flows into the water tank after being filtered by the drum, and a clean water outlet is provided on the water tank; the backwash nozzle is used to spray water in the backwash water pipe to flush the outer wall of the drum, and a sewage outlet is provided on the bottom surface of the drum.

[0006] Preferably, the rotating mechanism includes a plane bearing, a support sleeve is provided in the water tank, a bearing step is provided on the top of the support sleeve, the plane bearing is assembled in the bearing step, an inner sleeve is provided at the bottom of the sewage outlet, the inner sleeve is arranged in the support sleeve, and the inner sleeve is assembled in the plane bearing.

[0007] Preferably, a dirt collection box is further included, and the bottom of the support sleeve leads to the dirt collection box through a sewage discharge pipe.

[0008] Preferably, a sewage filter element is provided in the dirt collection box, and the bottom of the dirt collection box is connected to the water tank through a return pipe.

[0009] Preferably, a bracket is provided in the drum, and the bracket includes vertical strips arranged circumferentially on the inner wall of the drum, and a drainage bottom plate located at the bottom of the drum, and the sewage outlet is located in the middle of the drainage bottom plate.

[0010] Preferably, a spiral water trough is provided on the drainage bottom plate.

[0011] Preferably, there are two power sprinklers, and the end of the power water pipe is connected to the two power sprinklers respectively through a three-way pipe, and the two power sprinklers are distributed in opposite directions on both sides of the drum.

[0012] Preferably, a backwash water pump is provided in the water tank, and the backwash water pipe is connected to the backwash water pump.

[0013] Preferably, the water tank includes a water storage tank at the bottom, at least one leaking water tank is stacked on the water storage tank, a bottom plate of the leaking water tank is provided with a leaking hole, and the drum is arranged in the leaking water tank at the top.

[0014] The utility model also provides a fish farming device, comprising a fish tank and the centrifugal drum microfilter as described in any one of the above items, wherein a water pump is provided in the fish tank, and the power water pipe is connected to the water pump.

[0015] Compared with the existing technology, the present invention has the following beneficial effects: the centrifugal drum microfilter uses water drawn from the fish tank as power, which is sprayed from the power nozzle to rotate the drum. The rotating drum generates centrifugal force, so that the water sprayed on the inner wall of the drum by the power nozzle is thrown out through the micropores on the upper surface and enters the water tank due to the centrifugal force. The micropores on the drum wall break the water into fine droplets, increasing the oxygen content in the water. The micropores on the drum wall can also filter out dirt in the water, playing a purifying role. The centrifugal drum microfilter also has a self-cleaning function. When some dirt accumulates on the inner wall of the drum, water in the water tank can be pumped to the backflush nozzle through the backflush pipe. The water sprayed from the backflush nozzle enters the inner wall of the drum from the outside, flushing away the dirt attached to the inner wall of the drum. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0017] Figure 1 This is a structural schematic diagram of an embodiment of the centrifugal drum microfilter of the present utility model.

[0018] Figure 2 This is a schematic diagram of the installation of the drum, power water pipe and backwash water pipe in the water tank in one embodiment of the centrifugal drum microfilter of the present invention.

[0019] Figure 3 This is a schematic diagram of the installation of the drum in the water tank through the rotating mechanism in one embodiment of the centrifugal drum microfilter of the present invention.

[0020] Figure 4 for Figure 3 Magnified view of part A.

[0021] Figure 5 This is a structural diagram of the drum, bracket and power water pipe in an embodiment of the centrifugal drum microfilter of the present utility model.

[0022] Figure 6 This is a schematic structural diagram of a bracket in an embodiment of a centrifugal drum microfilter of the present invention.

[0023] Figure 7 This is a schematic structural diagram of the power water pipe in one embodiment of the centrifugal drum microfilter of the present utility model.

[0024] Figure 8 This is a structural diagram of an embodiment of the fish farming device of the present invention.

[0025] In the figure, the reference numerals are indicated as: water tank 1, clean water outlet 11, water storage tank 12, middle leakage tank 13, top leakage tank 14, support sleeve 141, bearing step 1411, dirt collection box 15, sewage discharge pipe 16, return pipe 17, backwash pipe 18, support 19, drum 2, sewage outlet 21, inner sleeve 22, power water pipe 3, power nozzle 31, three-way pipe 32, backwash water pipe 4, backwash nozzle 41, plane bearing 5, bracket 6, vertical slats 61, drainage bottom plate 62, fish tank 7. DETAILED DESCRIPTION

[0026] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0027] In one embodiment, a centrifugal drum microfilter is provided, which can be used to filter and purify water in a fish tank. Figure 1As shown, the centrifugal drum microfilter includes a water tank 1, a drum 2, a power water pipe 3 and a backwash water pipe 4. The water tank 1 is used to install the drum 2, the power water pipe 3 and the backwash water pipe 4 on the one hand, and is used to temporarily store the clean water filtered by the drum 2 on the other hand. The cylinder wall of the drum 2 is a microporous cylinder wall. The drum 2 is rotatably installed in the water tank 1 through a rotating mechanism. The power water pipe 3 is used to transport the water in the fish tank. One end of the power water pipe 3 is connected to a power nozzle 31, which is used to spray the water in the power water pipe 3 to the inside of the drum 2. Wall scouring provides power for the rotation of drum 2. The water sprayed by power nozzle 31 forms a certain angle with the radius of drum 2, ensuring that the scouring can drive drum 2 to rotate. At the same time, the water sprayed by power nozzle 31 is filtered by drum 2 and flows into water tank 1. This is because after drum 2 rotates, the water sprayed by power nozzle 31 on the drum wall is thrown out through the small holes in the microporous wall of drum 2 due to centrifugal force and falls into water tank 1. Debris, fish food residue, and other impurities contained in the water sprayed by power nozzle 31 are trapped on the inner surface of the microporous wall. Water tank 1 is provided with a clean water outlet 11, through which clean water in water tank 1 is discharged into the fish tank.

[0028] One end of the backflushing pipe 4 is connected to a backflushing nozzle 41, which is used to spray water from the backflushing pipe 4 to flush the outer wall of the drum 2. In this embodiment, the water sprayed from the backflushing nozzle 41 and the power nozzle exert opposite forces on the drum 2. The water sprayed from the power nozzle 31 causes the drum 2 to rotate counterclockwise, while the water sprayed from the backflushing nozzle 41 causes the drum 2 to rotate clockwise, thereby allowing the water sprayed from the backflushing nozzle 41 to flush away dirt attached to the inner wall of the drum 2. The bottom surface of the drum 2 is provided with a sewage outlet 21, through which the sewage generated by the backflushing nozzle 41 flushing the drum 2 is discharged. In other embodiments, the water sprayed from the backflushing nozzle and the power nozzle can also exert the same force on the drum, as long as the outer wall of the drum can be flushed and cleaned.

[0029] The working method of the centrifugal drum microfilter is as follows: the water in the fish tank can be pumped to the power nozzle 31 through the power water pipe 3. The water sprayed by the power nozzle 31 makes the drum 2 rotate. After the drum 2 rotates, the water sprayed on the inner wall of the drum 2 by the power nozzle 31 will be thrown out from the micropores on the upper surface into the water tank 1 due to the action of centrifugal force, thereby filtering and purifying the water in the fish tank; the clean water in the water tank 1 is discharged back to the fish tank from the clean water outlet 11, forming a cycle; after being filtered by the drum 2 for a period of time, the drum 2 is cleaned. Some dirt will accumulate on the inner wall of the drum 2. At this time, the water in the water tank 1 can be pumped to the backflush nozzle 41 through the backflush water pipe 4, and the power nozzle 31 can be stopped from spraying water at the same time. The water sprayed by the backflush nozzle 41 will flush the outer wall of the drum 2, causing the drum 2 to gradually reduce its speed. In this process, the water sprayed by the backflush nozzle 41 will enter the inner side from the outer side of the drum wall of the drum 2, and flush away the dirt attached to the inner wall of the drum 2. The flushed dirt is discharged from the sewage outlet 21 along with the sewage. The sewage outlet 21 can be connected to a sewage box to collect sewage.

[0030] The centrifugal drum microfilter uses water drawn from the fish tank as power, which is sprayed from the power nozzle 31 to rotate the drum 2. The rotating drum 2 has centrifugal force, so that the water sprayed on the inner wall of the drum 2 by the power nozzle 31 is thrown out from the micropores on the upper surface due to the centrifugal force and enters the water tank 1. The micropores on the wall of the drum 2 break the water into fine water droplets, increasing the oxygen content in the water. The micropores on the wall of the drum 2 can also filter out dirt in the water, playing a purifying role. The centrifugal drum microfilter also has a self-cleaning function. When some dirt accumulates on the inner wall of the drum 2, the water in the water tank 1 can be pumped through the backflush pipe 4 to the backflush nozzle 41. The water sprayed from the backflush nozzle 41 enters the inner wall of the drum 2 from the outside and flushes away the dirt attached to the inner wall of the drum 2.

[0031] Furthermore, in another embodiment, Figure 1 As shown, the water tank 1 of the centrifugal drum microfiltration machine includes a bottom water storage tank 12, on which are stacked two leaking tanks: a middle leaking tank 13 and a top leaking tank 14. The tops of the water storage tank 12 and the middle leaking tank 13 are each provided with a docking port. The bottoms of the middle leaking tank 13 and the top leaking tank 14 are each provided with a docking portion that matches the docking port, and the docking portions are inserted into the docking port. The bottom plates of the middle leaking tank 13 and the top leaking tank 14 are each provided with a leaking hole. The drum 2 is placed in the top leaking tank 14. Water filtered by the drum 2 enters the top leaking tank 14, then leaks into the middle leaking tank 13 through the leaking hole in the bottom plate of the top leaking tank 14, and then leaks into the water storage tank 12 through the leaking hole in the bottom plate of the middle leaking tank 13. The two leaking tanks allow the water to come into contact with more air, increasing the oxygen content of the purified water in the water storage tank 12.

[0032] Furthermore, in another embodiment, Figure 1-3 As shown, the rotating mechanism of the centrifugal drum microfilter includes a plane bearing 5, and a support sleeve 141 is provided in the top leakage box 14 of the water tank 1. The support sleeve 141 passes through the bottom plate of the top leakage box 14, and a bearing step 1411 is provided on the inner side of the top of the support sleeve 141. The plane bearing 5 is assembled in the bearing step 1411, and an inner sleeve 22 is provided at the bottom of the sewage outlet 21. The inner sleeve 22 is arranged in the support sleeve 141, and the inner sleeve 22 is assembled in the plane bearing 5. The inner sleeve 22 is fixedly connected to the bottom of the sewage outlet 21, or can be integrally formed with the drum 2. When the drum 2 is driven to rotate by the water flow, the inner sleeve 22 follows the plane bearing 5 and rotates freely and synchronously, and the inside of the inner sleeve 22 can also drain water at the same time.

[0033] Furthermore, in another embodiment, Figure 1 As shown, the centrifugal drum microfilter also includes a dirt collection box 15. The bottom of the support sleeve 141 leads to the dirt collection box 15 through a sewage discharge pipe 16. The dirt collection box 15 is arranged on one side of the middle leakage tank 13. The bottom of the support sleeve 141 leads to the dirt collection box 15 through a sewage discharge pipe 16. The sewage from the cleaning drum 2 will be discharged into the dirt collection box 15.

[0034] Further, such as Figure 1 As shown, a sewage filter element is provided in the dirt collection box 15, through which the sewage in the dirt collection box 15 is filtered. The filter element can be cleaned regularly. The bottom of the dirt collection box 15 is connected to the water storage tank 12 at the bottom of the water tank 1 through a return pipe 17. The water filtered by the filter element can be discharged back for reuse.

[0035] Furthermore, in another embodiment, Figure 5-6 As shown, the centrifugal drum microfilter is provided with a bracket 6 in the drum 2. The bracket 6 is a circular bracket that matches the microporous wall of the drum 2. The bracket 6 includes vertical strips 61 arranged circumferentially on the inner wall of the drum. The top of the vertical strips 61 is a circular ring. A drainage bottom plate 62 located at the bottom of the drum 2 is provided at the bottom of the bracket 6. The sewage outlet 21 is located in the middle of the drainage bottom plate 62, and the inner sleeve 22 is integrally provided at the bottom of the drainage bottom plate 62. The bracket 6 is tightly assembled in the microporous wall of the drum 2. By providing the vertical strips 61, the water sprayed from the power nozzle 31 impacts the vertical strips 61, which can cause the drum 2 to rotate.

[0036] Furthermore, in another embodiment, Figure 5-6As shown, a spiral water groove is provided on the drainage bottom plate 62 of the centrifugal drum microfilter. When the inner wall of the drum 2 is backwashed and cleaned, the sewage flowing down from the inner wall of the drum 2 rotates around the spiral water groove on the drainage bottom plate 62 and flows to the sewage outlet 21 in the middle, thereby flushing the drainage bottom plate 62 and preventing dirt from accumulating on the drainage bottom plate 62.

[0037] Furthermore, in another embodiment, Figure 5 and Figure 7 As shown, the centrifugal drum microfilter is provided with two power nozzles 31, and the end of the power water pipe 3 is connected to the two power nozzles 31 respectively through a three-way pipe 32. The two power nozzles 31 are distributed on both sides of the drum 2 in opposite directions, so that the two power nozzles 31 are used to spray water in the power water pipe 3 on both sides of the drum 2 to apply rotational power to the drum. The provision of two power nozzles 31 makes the drum 2 more powerful.

[0038] Furthermore, in another embodiment, in combination Figure 1 As shown, the centrifugal drum microfilter is provided with a backwash water pump (not shown in the figure) in the water storage tank 12 at the bottom of the water tank 1. The backwash water pump can be a booster pump, and the backwash water pipe 4 is connected to the backwash water pump through the backwash pipe 18.

[0039] In one embodiment, a fish farming device is provided, Figure 8 As shown, the fish farming device includes a fish tank 7 and the centrifugal drum microfilter described in the previous embodiment. A support 19 is provided next to the fish tank 7, and the centrifugal drum microfilter is mounted on the support 19. A clean water outlet 11 leads to the fish tank 7. A water pump is provided in the fish tank 7, and a power water pipe 3 is connected to the water pump via a water inlet pipe. The centrifugal drum microfilter purifies and oxygenates the water in the fish tank 7.

[0040] It should be noted that, in this document, terms such as "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements that are inherent to such process, method, article or apparatus.

[0041] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A centrifugal drum microfilter, characterized in that: It includes a water tank, a drum, a power water pipe and a backwash water pipe. The drum wall is a microporous drum wall. The drum is rotatably installed in the water tank through a rotating mechanism. One end of the power water pipe is connected to a power nozzle, and one end of the backwash water pipe is connected to a backwash nozzle. The power nozzle is used to spray water in the power water pipe to flush the inner wall of the drum, thereby providing power for the rotation of the drum. At the same time, the water sprayed by the power nozzle flows into the water tank after being filtered by the drum. A clean water outlet is provided on the water tank; the backwash nozzle is used to spray water in the backwash water pipe to flush the outer wall of the drum. A sewage outlet is provided on the bottom surface of the drum.

2. The centrifugal drum microfilter according to claim 1, characterized in that: The rotating mechanism includes a plane bearing, a support sleeve is provided in the water tank, a bearing step is provided on the top of the support sleeve, the plane bearing is assembled in the bearing step, an inner sleeve is provided at the bottom of the sewage outlet, the inner sleeve is arranged in the support sleeve, and the inner sleeve is assembled in the plane bearing.

3. The centrifugal drum microfilter according to claim 2, characterized in that: It also includes a dirt collection box, and the bottom of the support sleeve leads to the dirt collection box through a sewage discharge pipe.

4. The centrifugal drum microfilter according to claim 3, characterized in that: A sewage filter element is provided in the dirt collection box, and the bottom of the dirt collection box is connected to the water tank through a return pipe.

5. The centrifugal drum microfilter according to claim 1, characterized in that: A bracket is provided in the drum, and the bracket includes vertical strips arranged circumferentially on the inner side wall of the drum, and a drainage bottom plate located at the bottom of the drum, and the sewage outlet is located in the middle of the drainage bottom plate.

6. The centrifugal drum microfilter according to claim 5, characterized in that: A spiral water trough is provided on the drainage bottom plate.

7. The centrifugal drum microfilter according to claim 1, characterized in that: There are two power sprinklers, and the end of the power water pipe is connected to the two power sprinklers respectively through a three-way pipe. The two power sprinklers are distributed on both sides of the drum in opposite directions.

8. The centrifugal drum microfilter according to claim 1, characterized in that: A backflushing water pump is provided in the water tank, and the backflushing water pipe is connected to the backflushing water pump.

9. The centrifugal drum microfilter according to claim 1, characterized in that: The water tank comprises a water storage tank at the bottom, on which at least one leaking water tank is stacked, a bottom plate of the leaking water tank is provided with a leaking hole, and the drum is arranged in the leaking water tank at the top.

10. A fish farming device comprising a fish tank, characterized in that: It also includes the centrifugal drum microfilter according to any one of claims 1 to 9, wherein a water pump is provided in the fish tank, and the power water pipe is connected to the water pump.

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