CN220265504U - Novel aquaculture is exempted from to wash filtration system - Google Patents

Abstract

The utility model relates to a novel aquaculture washing-free filtering system, which comprises a filtering tank, wherein a plurality of functional areas are formed in the filtering tank by a plurality of vertical partition plates, and the novel aquaculture washing-free filtering system is characterized in that: the function area includes physical filtration district, a plurality of biochemical filtration district, the district disinfects, be equipped with bacterium room and agitator in the biochemical filtration district, the lower part of bacterium room is done and is hollowed out the district, there is toper dirt collection portion in hollowed out district below, the water inlet of biochemical filtration district is located the upper left side department of bacterium room, the delivery port is located the lower right side department of bacterium room, thereby form the multidirectional rivers mode of going into and out from bacterium room height, the physical filtration district carries out the primary filtration with the water that aquaculture pond tail water discharge port flowed in and purifies, carry to a plurality of biochemical filtration district and carry out biochemical purification, send back water after disinfecting again and produce the breed pond. The utility model can recycle the water body of the aquaculture pond, can effectively ensure the water quality without changing water for a long time, does not need to regularly detach the bacterial house for cleaning, and has low maintenance cost and high working efficiency.

Description

Novel aquaculture is exempted from to wash filtration system

Technical Field

The utility model relates to the field of aquaculture, in particular to a novel aquaculture washing-free filtering system.

Background

The water is an environment in which fish live, and better water can reduce fish diseases and is more beneficial to the growth and survival of fish. Especially, the fresh water aquiculture in hot summer is a peak period of fish disease epidemic, and the fish disease prevention work must be enhanced, so that the water quality of the aquiculture pond and the sanitation of the culture environment are maintained. At present, most of the aquaculture in China adopts a mode of still water closed aquaculture in a pond, and various parasites, microorganisms and bacteria are easy to breed in the pond due to pollution of various feeds, medicines, excrement, weeds and the like which are manually put in the aquaculture process, so that the water quality is poor. If the water is not changed frequently, the fish easily dies. In order to prevent fish death, it is conventional practice to replace the pond water periodically and assist with oxygenation equipment. Therefore, the method is troublesome to operate, wastes water resources, and is uneconomical and not environment-friendly. For this reason, manufacturers who do not use fish farming use additional fishpond filters. The fish pond filter in the prior art is generally a filter which adopts simple filter cotton for filtration or is internally provided with a filter screen, and the filter structure only can filter out solid matters with larger particles, so that the water quality is difficult to achieve good purification; secondly, the device is easy to block, inconvenient to clean, troublesome to use and high in frequency of manual maintenance. Although patent publication number CN218232037U discloses an integrated apparatus for filtering circulating water in a aquarium, it comprises: a biochemical precipitation section and a microfiltration section; a sediment sludge bucket is arranged at the bottom of the biochemical sediment section, and a sludge discharge port is arranged below the sediment sludge bucket; an ecological combined packing layer is arranged above the sedimentation mud bucket in the biochemical sedimentation section, and microorganisms are loaded on the ecological combined packing layer so as to realize the effect of integrating biochemical, sedimentation and filtration functions. However, the sewage in the fish pond enters through the water inlet at the lower part of the biochemical precipitation section and flows to the micro-filtration section from the overflow tank above the biochemical precipitation section and the biochemical precipitation water outlet after passing through the ecological combined packing layer. Disadvantages of this filter structure are: 1. sewage with a large amount of impurities and fish discharge is precipitated at the bottom of the biochemical precipitation section, so that a mud discharge port below a precipitation mud bucket is often blocked, and the maintenance and dredging are needed manually; 2. because sewage is not filtered by a pre-filter, and water overflows from the lower part to the upper part in a slow flow mode, small holes in the ecological combined filling layer are easy to be filled with small-granularity fish excreta and other foreign matters to be blocked, which is unfavorable for culturing and filtering microorganisms, so that the ecological combined filling layer needs to be taken out and cleaned regularly, and has high maintenance cost. So the prior fish pond filtering system is difficult to meet the demands of vast aquaculture factories.

Disclosure of Invention

The utility model aims to solve the problems and the defects, and provides a novel aquaculture washing-free filtering system which can recycle the water body of an aquaculture pond, can carry out circulating filtration, purification and sterilization treatment on the aquaculture water body while improving the water quality, does not need to change water for a long time, does not need to regularly detach a bacterial house for cleaning, and has low maintenance cost and high working efficiency.

The technical scheme of the utility model is realized as follows:

the utility model relates to a novel aquaculture washing-free filtering system, which comprises a filtering tank, wherein a plurality of functional areas are formed in the filtering tank by a plurality of vertical partition plates, and the novel aquaculture washing-free filtering system is characterized in that: the utility model provides a ecological water treatment device, including the aquaculture pond, the function district is including the physical filtration district, a plurality of biochemical filtration district, the district disinfects of order transverse arrangement and intercommunication, physical filtration district and aquaculture pond's tail water discharge port intercommunication, be equipped with the bacterium room that has multi-level multi-direction structural feature in the biochemical filtration district, and the lower part of this bacterium room is equipped with the fretwork district that upwards concave yield by the bottom surface, and the inner chamber bottom of biochemical filtration district is equipped with the toper dirt collection portion that is located the fretwork district below, and the bottom of toper dirt collection portion is equipped with the blow off pipe, still be equipped with vertical cartridge in toper dirt collection portion department's agitator in the biochemical filtration district, the action bars of this agitator upwards extend out the bacterium room, the water inlet of biochemical filtration district is located the upper left side department of bacterium room, and the delivery port is located the lower right side department of bacterium room to form the multi-direction rivers mode that advances to descend from the bacterium room, the water that the water outlet flows in with aquaculture pond is advanced to carry out after carrying out primary filtration purification to biochemical filtration district, reentrant water body and disinfect and carry back to aquaculture pond through outlet pipe and water pump after disinfecting in the biochemical filtration district. Biochemical purification is an abbreviation for biological digestion, filtration and purification.

The stirrer can be an existing electric stirrer with stirring blades or a manual stirrer. The stirring blades on the stirrer are downward blades and can be arc blades with upward bends.

The method further comprises the following steps: the biochemical filter area is internally provided with a bacterial house support frame positioned above the conical dirt collecting part, the bacterial house support frame is provided with an arch-shaped filter frame matched with the hollow area in shape, two sides of the bacterial house support frame are supported on two sides of the conical dirt collecting part, and the bacterial house is arranged on the arch-shaped filter frame. The operating rod of the stirrer is vertically arranged on the bacterial house supporting frame.

The arched filter frame can be a semicircular arched filter frame, an inverted V-shaped arched filter frame or an inverted U-shaped arched filter frame. The bacteria house is formed by filling a plurality of bulk biological filter materials into a space between the upper part of the bacteria house supporting frame and two side walls of the biochemical filtering area.

In the utility model, the physical filtering area mainly adopts the existing micro-filter to carry out solid-water separation and filtration on the water body (generally called tail water or sewage) flowing in from the outlet (also called sewage outlet) of the aquaculture Chi Weishui, fully collects solid matters (such as solid foreign matters such as feed and fish discharge matters) in the tail water and discharges the solid matters out of the water body, thereby effectively removing most of pollution sources in the water body. The water filtered by the physical filtering areas flows into a plurality of biochemical filtering areas for multiple biological digestion and filtration, and the biochemical filtering areas have the functions of precipitation and purification, dirt collection and activation and renovation (the water forms multidirectional rapid flow by the multi-layer multidirectional biological filtering materials in the bacteria room when water flows through the bacteria room, so that the water is activated and renovated) at the same time of the biological digestion and filtration.

The method further comprises the following steps: two partition boards which are vertically arranged in parallel are arranged between the adjacent functional areas, and the two partition boards are arranged in a staggered mode up and down to form a water flow channel with a lower water passing port on one side and an upper water passing port on the other side, wherein the lower water passing port forms a water outlet of the previous functional area, and the upper water passing port forms a water inlet of the next functional area.

At least one submerged bactericidal lamp is arranged in the bactericidal area. The sterilizing lamp is generally an ultraviolet sterilizing lamp.

In order to further reduce the production cost, the conical dirt collecting part can be formed by concrete building. The cone-shaped dirt collecting part can also be formed by a cone-shaped cavity made of soil and waterproof cloth paved on the inner surface of the cone-shaped cavity, and the position of the waterproof cloth corresponding to the drain pipe at the bottom of the cone-shaped dirt collecting part is provided with a mounting hole for the drain pipe to pass through.

Further, the filter tank is formed by a square net cage support body made of a steel frame structure and tarpaulins paved on the bottom surface and four side surfaces of the inner cavity of the net cage support body.

For convenience, operators can operate above the water surface of the filter tank (such as operating a stirrer above the water surface of the biochemical filter area) without draining, and a pedestrian bridge can be arranged above the biochemical filter area. The two ends of the pedestrian bridge are arranged on the front end and the rear end of the filter tank, the pedestrian bridge is convenient for operators to work on the filter tank, the sewer is not needed, and the work is efficient. Another important function is to pull the two ends of the filter tank to prevent the two ends of the filter tank from expanding outwards due to the much water in the tank, so as to ensure that the filter tank is not deformed.

Compared with the prior art, the utility model has the advantages that:

1. the utility model combines physics and biology technology, can carry out cyclic filtration, purification and sterilization treatment on water in an aquaculture pond, so that the water quality is kept clear, transparent, free from turbidity and odor for a long time, the water quality can be effectively ensured without changing water for a long time, special nursing is not needed, and the method is economical and environment-friendly.

2. The utility model firstly carries out solid-water separation and filtration on the tail water flowing in from the tail water outlet of the aquaculture pond in the physical filtration area, fully collects solid matters (such as solid foreign matters such as feed, fish discharge and the like) in the tail water and discharges the solid matters out of the water, thereby effectively eliminating most pollution sources in the water. And then the residual pollution sources in the water body are adsorbed in multiple ways through the bacterial houses in the biochemical filtering areas, and the adsorbed pollution sources are subjected to biological digestion degradation by utilizing digestive bacteria cultured in the bacterial houses, so that the biological digestion filtering effect is good. In addition, the lower part of the bacterial house in each biochemical filtering area is provided with a hollowed-out area which is upwards recessed from the bottom surface, the lower part of the hollowed-out area is provided with a conical dirt collecting part with a drain pipe, the water inlet of the biochemical filtering area is positioned at the left upper side of the bacterial house, and the water outlet is positioned at the right lower side of the bacterial house, so that each biochemical filtering area has the functions of activating and renewing water and slowly precipitating and purifying (the conical dirt collecting part can enable the water in the conical dirt collecting part to slowly flow and precipitate impurities or foreign matters) and collecting and discharging the dirt, and meanwhile, the hollowed-out area is also beneficial to sedimentation of the foreign matters in the water, so that the pollution of the pollutants to the water is greatly reduced, and the purification treatment efficiency is further improved. The biochemical filtering area with the structure does not need to be taken out periodically to clean the bacterial house (namely, the filtering area is a washing-free filtering area), so that the maintenance cost is low and the working efficiency is higher. The problems that the biological digestion effect is poor, the bacteria house is easy to block and frequent cleaning is needed due to the fact that only one square bacteria house is used for filling and filtering and water flows from bottom to top in the existing biochemical purification area are effectively solved.

3. The biochemical filtering area is internally provided with the stirrer which is vertically inserted in the conical dirt collecting part, the sedimentation in the biochemical filtering tank is effectively prevented from blocking the conical dirt collecting part by the stirring of the stirrer, and a part of foreign matters (pollutants) attached to a bacterial room can fall off under the action of the stirring water body and enter the conical dirt collecting part, so that the purifying effect of the water body is further enhanced, and the purifying efficiency is improved.

4. The biochemical filtering area is also internally provided with a bacterial house supporting frame with an arched filtering frame, the bacterial house supporting frame is arranged above the conical dirt collecting part, two sides of the bacterial house supporting frame are borne on two sides of the conical dirt collecting part, and the operating rod of the stirrer is vertically arranged on the bacterial house supporting frame, so that the reliability of the structure of the utility model is further enhanced, and the installation is simple.

5. When the utility model is used, the filtering path of the tail water in the filtering system is utilized more reasonably, the water flow is smooth, and the dead angle of sewage is not easy to form.

The utility model is further described below with reference to the accompanying drawings.

Drawings

FIG. 1 is a schematic diagram of an embodiment of the present utility model;

FIG. 2 is a schematic view of a bacterium room according to another embodiment of the present utility model;

FIG. 3 is a schematic view of the water flow path of the present utility model in use with an aquaculture pond.

Detailed Description

As shown in fig. 1-3, the novel aquaculture washing-free filtering system comprises a filtering tank, wherein a plurality of functional areas are formed in the filtering tank by separating a plurality of vertical separation plates 1, each functional area comprises a physical filtering area 2, a plurality of biochemical filtering areas 3 and a sterilizing area 4 which are transversely arranged and communicated in sequence, the physical filtering areas 2 are communicated with a tail water outlet of the aquaculture tank, a bacterial house 31 with a multi-layer multi-directional structure characteristic is arranged in each biochemical filtering area 3, a hollowed-out area 32 with the bottom surface recessed upwards is formed in the lower portion of the bacterial house 31, a conical dirt collecting portion 33 positioned below the hollowed-out area 32 is arranged at the bottom of an inner cavity of each biochemical filtering area 3, a drain pipe 34 is arranged at the bottom of each conical dirt collecting portion 33, and a switch for controlling discharge is connected to the drain pipe. In order to further improve the sewage disposal efficiency, the biochemical filtering area 3 is further provided with a stirrer 6 vertically inserted in the tapered sewage collecting part 33, and the upper end of an operating rod of the stirrer 6 extends upwards to extend out through the bacterial house 31, so that the stirrer can be conveniently operated outside. The water inlet 35 of the biochemical filtering section 3 is positioned at the upper left side of the bacteria house 31, and the water outlet 36 is positioned at the lower right side of the bacteria house 31. Thereby forming a water flow mode of high-inlet and low-outlet from the bacteria house 31. The physical filtration zone 2 is provided with a filter screen capable of performing physical filtration, preferably with an existing micro-filter 21 (a 200 mesh filter screen is provided on a filter screen cylinder of the micro-filter). As shown in FIG. 1, when the length and width of the biochemical filtration zone 3 are both 4 m and the depth is 2.5 m, the length and width of the hollowed-out zone is generally about 2.5-3 m and the depth is about 0.5-1 m. The physical filtering area 2 carries out primary filtering purification on water flowing into the tail water outlet of the aquaculture pond, then carries to the biochemical filtering areas 3 for biochemical purification in sequence, and then enters the sterilizing area 4 for sterilization and then is pumped back to the aquaculture pond through the water outlet pipe and the water pump. The utility model can improve the water quality and sterilize the culture water, and reduce the occurrence of diseases, thereby reducing the culture cost, improving the culture yield and increasing the culture benefit.

In order to make the structure of the utility model more reliable, a bacteria house supporting frame 37 positioned above the conical dirt collecting part is arranged in the biochemical filtering area, an arch filtering frame matched with the hollow area 32 is arranged on the bacteria house supporting frame 37, two sides of the bacteria house supporting frame are loaded on two sides of the conical dirt collecting part, the bacteria house is arranged on the arch filtering frame, and an operating rod of the stirrer 6 is vertically arranged on the bacteria house supporting frame. Typically rotatably mounted to the bacteria house support frame by bearings. One function of the bacteria house support frame is to support the bacteria house, and the other function is to bear the stirrer. The arch-shaped filter frame is a semicircular arch-shaped filter frame (shown in figure 1) or an inverted V-shaped filter frame (shown in figure 2) or an inverted U-shaped filter frame. To make the structure more reliable, the bacteria house support frame 37 further includes a bottom frame, two sides of which are connected to two sides of the arched filter frame. The base frame is generally formed as a square frame. The bottom frame has the function of traction to prevent the arch-shaped filter frame from being pressed to two sides for a long time to deform. The bottom frame can be provided with a vertical supporting rod connected with the arched filter frame. Further, vertical baffle frames are arranged on the left side and the right side of the bottom frame of the bacteria house supporting frame. The baffle rack is used for assisting in positioning the partition boards and preventing the partition boards from toppling towards the side of the bacteria house. The bacteria house 31 may be integrally formed; preferably, the bacteria house 31 is formed by filling a plurality of bulk biological filter materials in a space between the upper part of the supporting frame and two side walls of the biochemical filtering area 3. Because the biological filter materials are randomly filled and can be filled in bulk biological filter materials with different specifications, the formed biological house has the characteristics of multiple layers and multiple water flow directions. The filter holes on the arched filter frames are smaller than the size of the bulk biological filter material to prevent the biological filter material from falling from the filter holes. The bacterial house support frame is generally made of stainless steel.

The cone-shaped dirt collection part 33 can be directly made of metal or plastic. For further cost reduction and easier installation, concrete construction may be used, and the two sides of the tapered dirt collecting portion 33 may form supporting edges for carrying the two sides of the bottom of the bacteria house 31 or/and the two sides of the supporting frame. Preferably, the tapered dirt collecting portion 33 is formed by a tapered cavity made of soil and waterproof cloth paved on the inner surface of the tapered cavity, and a mounting hole for the drain pipe 34 to penetrate is formed in a position corresponding to the drain pipe 34 at the bottom of the tapered dirt collecting portion 33.

At least one submerged germicidal lamp 41 (typically two ultraviolet germicidal lamps) is mounted in the germicidal zone 4. In general, the lower part of the bacterial house in each microbial filter tank is provided with the upwardly concave hollow area, and when water after primary physical filtration and purification flows from the upper part of the left side of the biochemical filter area to the water outlet on the right side, the water flowing obliquely is faster, so that a part of foreign matters adsorbed on the bacterial house and sediments degraded by biological digestion are easy to flow downwards along with the water, and are downwards settled when passing through the hollow area, and then downwards discharged from the bottom conical dirt collecting part, and the effects of stirring, pollution discharge and stirring of the water body by the stirrer are achieved, so that the purification efficiency can be further improved, the bacterial house can not be blocked due to long use time, periodic taking out and cleaning are not needed, and the later maintenance cost is low. The cone-shaped dirt collecting part has the function of accumulating sediments and is convenient for centralized discharge.

In the utility model, two partition boards 1 which are vertically arranged in parallel are arranged between adjacent functional areas, and the two partition boards 1 are arranged in a staggered manner up and down to form a water flow channel with a lower water passing port on one side and an upper water passing port on the other side, wherein the lower water passing port forms a water outlet of the previous functional area, and the upper water passing port forms a water inlet of the next functional area. As shown in fig. 1, the upper end of one of the two partition plates between the adjacent functional areas is connected to the upper end of the filter tank, and the lower end and the bottom of the filter tank form a lower water passing port. The lower end of the other block is connected with the bottom of the inner cavity of the filter tank, and the upper end of the other block and the upper end of the filter tank form an upper water passing port. The partition plate can be formed by steel plates or steel frames and waterproof cloth.

The stirring blade on the stirrer 6 can be a stirring blade fixedly arranged at the bottom of the stirring rod; the stirring blades on the stirrer 6 may also be formed as blades which can be controlled manually to retract downwards or inwards. The downward or inward collapsing structure of the stirring blades is widely used in prior art umbrellas or covers and fans, and is not described in detail herein.

The method further comprises the following steps: the filtering tank is formed by a square net cage support body made of a steel frame structure, and tarpaulins paved on the bottom surface and four side surfaces of the inner cavity of the net cage support body, and the tarpaulin is high in waterproofness, free from water leakage and durable. An openable cover plate or a covering cloth is arranged above the filter tank. The filter tank structure is simple to install and transport, low in production cost and free from damaging a cultivation layer of the land due to cement like the conventional cement tank.

The specific workflow of an embodiment of the utility model is as follows:

the tail water of the aquaculture pond flows into a 200-mesh micro-filter in the physical filtering area 2 through a tail water outlet for physical filtering, the micro-filter fully collects solid matters in the tail water, and the solid matters are discharged out of the water body through a drain pipe of the micro-filter, so that most of pollution sources in the water body are effectively removed. The water filtered by the micro-filter flows into a plurality of biochemical filtering areas 3 for biological digestion and filtration, the biochemical filtering areas have the functions of precipitation and purification, dirt collection and activation and renewing while the biological digestion and filtration are carried out, and the water after biochemical filtration is sterilized by ultraviolet rays of a sterilizing area 4 and then is pumped back to an aquaculture pond by a water outlet pipe and a water pump.

The utility model has ingenious design and reasonable structure, combines physics and biological technology, can be matched with the existing aquaculture pond for use, can better carry out circulating filtration and purification treatment on water in the aquaculture pond, ensures that the water quality in the aquaculture pond is clear, transparent, not turbid and odorless for a long time, provides a good ecological environment for fish without changing water for a long time, does not need to clean a bacterial house regularly, can also effectively ensure the water quality, greatly improves the survival rate of fish, greatly saves space, and is beneficial to wide popularization and application.

In the description of this patent, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate an orientation or a positional relationship based on that shown in the drawings, merely for convenience in describing the patent and simplifying the description, and do not indicate or imply that the devices or elements being referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the patent.

Although the utility model has been described with reference to specific embodiments, this description is not meant to limit the utility model. Other variations to the disclosed embodiments can be envisioned by those skilled in the art with reference to the description of the utility model, and such variations are intended to fall within the scope of the appended claims.

Claims (10)

1. The utility model provides a novel aquaculture is exempted from to wash filtration system, includes the filtering ponds, separates through polylith vertical division board (1) in this filtering ponds and forms a plurality of functional areas, its characterized in that: the utility model provides a biochemical water purification device, which comprises a functional area, a physical filtering area (2), a plurality of biochemical filtering areas (3) and a sterilization area (4) which are transversely arranged and communicated in sequence, wherein the physical filtering area (2) is communicated with a tail water outlet of an aquaculture pond, a bacterial room (31) with multi-layer multi-directional structure characteristics is arranged in the biochemical filtering area (3), a hollowed-out area (32) with a bottom surface recessed upwards is arranged at the lower part of the bacterial room (31), a conical dirt collecting part (33) positioned below the hollowed-out area (32) is arranged at the bottom of an inner cavity of the biochemical filtering area (3), a drain pipe (34) is arranged at the bottom of the conical dirt collecting part (33), a stirrer (6) vertically inserted at the conical dirt collecting part (33) is further arranged in the biochemical filtering area (3), an operating rod (61) of the stirrer (6) extends upwards to penetrate out of the bacterial room (31), a water inlet (35) of the biochemical filtering area (3) is positioned at the upper left side of the bacterial room, a water outlet (36) is positioned at the lower right side of the bacterial room (31), so that water flows into the biochemical filtering area (3) in a mode of high water purification device in a multi-directional mode, water is filtered and then flows into the biochemical filtering area (2) in turn, then enters the sterilization area (4) and is sent back to the aquaculture pond through the water outlet pipe (5) and the water pump after being sterilized.

2. The novel aquaculture no-clean filtration system of claim 1, wherein: be equipped with in biochemical filtration district (3) and lie in the bacterial house support frame (37) of toper collection dirty portion (33) top, and have on bacterial house support frame (37) with the arch filter frame of fretwork district (32) matching installation, on both sides of this bacterial house support frame (37) bear on both sides of toper collection dirty portion (33), bacterial house (31) set up in on the arch filter frame, the action bars middle part of agitator (6) vertical device in on bacterial house support frame (37).

3. The novel aquaculture no-clean filtration system of claim 2, wherein: the arch-shaped filter frame is a semicircular arch-shaped filter frame or an inverted V-shaped filter frame.

4. The novel aquaculture no-clean filtration system of claim 2, wherein: the bacteria house (31) is formed by filling a plurality of bulk biological filter materials into a space between the upper part of the bacteria house supporting frame (37) and two side walls of the biochemical filtering area (3).

5. The novel aquaculture no-clean filtration system of claim 1, wherein: two partition boards (1) which are vertically arranged in parallel are arranged between the adjacent functional areas, the two partition boards (1) are arranged in a staggered mode up and down to form a water flow channel with a lower water passing port on one side and an upper water passing port on the other side, the lower water passing port forms a water outlet of the previous functional area, and the upper water passing port forms a water inlet of the next functional area.

6. The novel aquaculture no-clean filtration system of claim 1, wherein: a pedestrian bridge is arranged above the biochemical filtering area (3).

7. The novel aquaculture no-clean filtration system of claim 1, wherein: at least one submerged bactericidal lamp (41) is arranged in the bactericidal area (4).

8. The novel aquaculture no-clean filtration system of claim 1, wherein: the cone-shaped dirt collecting part (33) is formed by concrete building.

9. The novel aquaculture no-clean filtration system of claim 1, wherein: the cone-shaped dirt collecting part (33) is formed by a cone-shaped cavity made of soil and waterproof cloth paved on the inner surface of the cone-shaped cavity, and a mounting hole for the dirt discharging pipe (34) to penetrate out is formed in the position of the waterproof cloth corresponding to the dirt discharging pipe (34) at the bottom of the cone-shaped dirt collecting part (33).

10. The novel aquaculture no-clean filtration system of claim 1 or 6, wherein: the filter tank is formed by a square net cage support body made of a steel frame structure and tarpaulins paved on the bottom surface and four side surfaces of the inner cavity of the net cage support body.