CN113273538A

CN113273538A - Self-purification fish pond system

Info

Publication number: CN113273538A
Application number: CN202110632189.6A
Authority: CN
Inventors: 倪琦; 黄达; 李金刚; 顾川川; 胡勇兵
Original assignee: Fishery Machinery and Instrument Research Institute of CAFS
Current assignee: Fishery Machinery and Instrument Research Institute of CAFS
Priority date: 2021-06-07
Filing date: 2021-06-07
Publication date: 2021-08-20
Anticipated expiration: 2041-06-07
Also published as: CN113273538B

Abstract

The invention discloses a self-purification fish pond system, which solves the defects of high requirement on equipment, complex structure and difficult universal application of the existing culture system facilities, and adopts the technical scheme that the self-purification fish pond system comprises a fermentation pond, a filter box and a self-purification fish pond; the self-purification fish pond system is simple in structure, low in equipment requirement, more economical and applicable, and capable of realizing popularization of an economical circulating culture mode.

Description

Self-purification fish pond system

Technical Field

The invention relates to a culture fish pond, in particular to a self-purification fish pond system.

Background

The industrial recirculating aquaculture system mainly comprises an aquaculture system, a physical filtration system, a biological filtration system and a disinfection and sterilization system. The existing stage industrial recirculating aquaculture system can be roughly divided into two technical routes, namely an integrated recirculating aquaculture mode which mainly purifies water quality through various water treatment equipment and reduces the working intensity of personnel; and the other is an economic recirculating aquaculture mode, which mainly simplifies water treatment equipment and purifies water quality in a simple manner.

However, in the seedling breeding system, the fish and vegetable symbiotic system or the medium and small-sized cultivation system, requirements on facilities and equipment are high, the structure is complex, and a room for improvement is provided.

Disclosure of Invention

The invention aims to provide a self-purification fish pond system which is simple in structure, low in equipment requirement, more economical and applicable and capable of realizing popularization of an economical circulating type culture mode.

The technical purpose of the invention is realized by the following technical scheme:

a self-purification fish pond system comprises a fermentation pond, a filter box and a self-purification fish pond;

the self-purification fish pond comprises

The fish pond comprises a fish pond body and a base, wherein the fish pond body is used for culturing fish fries, and the base is fixedly supported and arranged on the bottom edge of the fish pond body;

the bottom row device is arranged at the bottom of the fish pond body, is communicated with the inside of the fish pond body, and also comprises a blow-off pipe communicated and connected with the fermentation pond;

the upper overflow device is arranged on the side wall of the fish pond body, is communicated and connected with the inner side wall and the outer side wall of the fish pond body and is connected to the filter box;

moving bed bioreactor installs in the fish pond originally internally through the installation component, and is located end row device top, leaves the dirty clearance of collection that supplies the particulate matter circulation with end row device between.

Preferably, the installation component of the moving bed bioreactor comprises

The lower support is fixedly arranged at the bottom of the fish pond body and is arranged in the circumferential direction of the bottom row device;

the upper support is fixedly arranged at the bottom of the moving bed bioreactor, and a plurality of lower supports corresponding to the upper support are arranged in the circumferential direction;

the two ends of the connecting rod are respectively connected and installed on the upper support and the lower support;

and one end of the fixed rod is connected to the upper edge of the side wall of the fishpond body, the other end of the fixed rod is connected to the upper edge of the moving bed bioreactor, and the fixed rod is provided with a plurality of fixed rods along the circumferential direction of the moving bed bioreactor.

Preferably, the connecting rod is a double-threaded screw, and two ends of the upper support and the lower support are both provided with inner screw holes in threaded connection with the double-threaded screw;

the side wall upper edge of the moving bed bioreactor and the side wall upper edge of the fish pond body are both provided with through holes for the fixing rods of the mounting assemblies to penetrate through, and two ends of each fixing rod are in hook-shaped movable connection with the moving bed bioreactor and the fish pond body.

Preferably, the moving bed bioreactor comprises a shell, a supporting plate, an aeration disc, a flow guide ring, a water outlet pipe and a cover plate;

the supporting plate is fixedly arranged on the inner side wall of the shell at one side close to the fishpond body; a plurality of aeration holes are arranged on the aeration disc, and the aeration disc is fixedly arranged on the supporting plate; the guide ring is in a hollow cylindrical shape, a plurality of support rods connected to the inner side wall of the shell are fixed on the side wall, and the guide ring is positioned above the aeration disc and in the center of the shell; the water outlet pipe is 7-shaped, the upper end of the water outlet pipe penetrates through the side wall of the shell and is communicated and connected with the fish pond body, and the lower end of the water outlet pipe extends to the position above the aeration disc along the side wall of the shell; the cover plate covers the upper port of the shell.

Preferably, still including having the ring and locate the outlet pipe and be connected to the solid fixed ring of casing inside wall, the outlet pipe is provided with a plurality of roots in the inboard circumference of casing, the air stone has been placed to the inboard of outlet pipe.

Preferably, the fish pond body is cylindrical shell-shaped, and the bottom of the fish pond body is connected with the upper port of the bottom row device from the edge to the center direction in a downward inclined mode.

Preferably, the outer side of the moving bed bioreactor close to the bottom of the fish pond body is annularly provided with an aeration ring, and through holes with equal apertures are uniformly distributed on the circumference of the aeration ring.

Preferably, the upper overflow device comprises a connecting pipe and an overflow pipe; one end of the connecting pipe is fixedly connected to the side wall of the fish pond body, and the other end of the connecting pipe is connected to the overflow pipe; the overflow pipe is hollow cylinder, and the horizontal side wall of placing communicates and connects in the connecting pipe, the spillway hole has evenly been seted up to the lateral wall of overflow pipe.

Preferably, the connecting pipe of the upper overflow device comprises a fixed pipe fixedly connected to the side wall of the fish pond body, and an adjusting pipe movably connected between the fixed pipe and the overflow pipe in a threaded manner for adjusting the water level.

In conclusion, the invention has the following beneficial effects:

by integrating the moving bed bioreactor in the fish pond body of the self-purification fish pond, the site space can be fully utilized, the ammonia nitrogen and nitrite content in the aquaculture water body can be removed, the economical circulating aquaculture is realized by connecting the fish pond body with the fermentation pond and the filtering pond, the facility equipment is simple, the investment cost is low, and the device is suitable for a seedling breeding system, a fish and vegetable symbiotic system and medium and small aquaculture and is favorable for popularization and use;

by adopting the self-purification fish pond system, the ratio of the culture water surface area to the water surface area of the moving biological bed reactor is improved, the retention time of a water body is relatively increased, and the water treatment efficiency is higher;

the moving bed bioreactor is provided with a plurality of water outlet devices, and the bottom of the moving bed bioreactor is provided with an annular aeration pipe, so that the flowing state of the aquaculture water body can be effectively controlled, and the collection and the pollution discharge of particles are facilitated.

Drawings

FIG. 1 is a block diagram showing the structure of the system;

FIG. 2 is a schematic structural view of a self-cleaning fish pond;

FIG. 3 is a cross-sectional view of a self-cleaning fish pond;

FIG. 4 is a schematic diagram of the structure of a moving bed bioreactor.

In the figure: 1. a fish pond body; 2. moving bed bioreactors; 3. an upper overflow device; 4. a connecting pipe; 5. fixing the rod; 6. a support bar; 7. a flow guide ring; 8. a cover plate; 9. a water outlet pipe; 10. a fixing ring; 11. an aeration ring; 12. an aeration disc; 13. a support plate; 14. a base; 15. a dirt collecting gap; 16. a blow-off pipe; 17. a bottom row device; 18. a lower support; 19. a connecting rod; 20. and an upper support.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

According to one or more embodiments, a self-purification fish pond system is disclosed, as shown in fig. 1, the system comprises a self-purification fish pond, a fermentation pond and a filter box, wherein the self-purification fish pond is connected to the fermentation pond, particulate matters are discharged and conveyed to the fermentation pond, the upper overflow water of the self-purification fish pond is connected and output to the filter box, the particulate matters are discharged and conveyed to the fermentation pond after being filtered by the filter box, and the filtered water can be conveyed to the self-purification fish pond for circulation after being subjected to oxygenation, UV disinfection and temperature adjustment. And the filter residue after fermentation in the fermentation tank is directly discharged to plants to form fish-vegetable symbiotic circulation, and the water body after fermentation liquor can be circularly conveyed to the plants or filtered again through a filter box.

As shown in fig. 2 and 3, the self-purification fish pond comprises a fish pond body 1, a bottom drainage device 17 connected to the fermentation pond and used for discharging particulate matters in the fish pond body 1, an upper overflow device 3 connected to the filter tank and used for draining upper overflow in the fish pond body 1, and a moving bed bioreactor 2 integrally installed in the fish pond body 1. By adopting the self-purification fish pond system, the ratio of the culture water surface area to the water surface area of the moving bed bioreactor 2 is improved, the retention time of the water body is relatively increased, and the water treatment efficiency is higher.

The fish pond body 1 is cylindrical shell form, installs the base 14 that supports fish pond body 1 in the bottom of fish pond body 1, makes fish pond body 1 built on stilts through base 14. The bottom of fish pond body 1 is slope setting by the edge to the center, and the slope is downward, sets up circular opening intercommunication and is connected to the last port of end row device 17 in fish pond body 1 bottom.

The port is connected in fish pond body 1 on the row's of end device 17, and the row's of end device 17 is installed in the bottom central point of fish pond body 1 and is put, is the big hollow round platform form that internal diameter diminishes gradually downwards of last port, still including connecting in the blow off pipe 16 of port down, the slope setting of fish pond body 1 bottom can concentrate the particulate matter that deposits to row's of end device 17 department, and row's of end device 17 can further collect the particulate matter and discharge through the setting of hollow round platform form.

Go up overflow device 3 including connecting pipe 4 and warning pipe, the warning pipe is hollow circular cylinder, and evenly distributed has the spillway hole on the lateral wall, and the warning pipe level is placed in fish pond body 1, and connecting pipe 4 intercommunication is connected in the lateral wall of warning pipe below, and the rethread connecting pipe 4 communicates in the lateral wall of fish pond body 1, will go up overflow output. Connecting pipe 4 is including the fixed pipe of fixed connection in 1 lateral wall of fish pond body and the control tube that sets up along vertical direction, and fixed pipe is the setting of buckling, and one section horizontally connect to 1 lateral wall of fish pond body, the vertical upwards setting of the other end, control tube threaded connection is in the upper end of fixed pipe, and the warning pipe is then connected in the upper end of fixed pipe, and the regulation through the control tube can be adjusted the overflow water level of last overflow device 3, and then can carry out height adjustment to the breed water level in self-purification fish pond. Go up connecting pipe 4 and the warning pipe of overflow device 3 and be provided with two sets ofly, and preferably set up and be the symmetry setting on the same internal diameter of fish pond body 1, go up the overflow and adopt two drainage to arrange, the particulate matter of being convenient for is collected fast, through the height that goes up and down, control breed fish pond water level height.

The moving bed bioreactor 2 comprises a shell, a supporting plate 13, an aeration disc 12, a guide ring 7, a water outlet pipe 9 and a cover plate 8.

The casing is hollow cylinder, and backup pad 13 is installed at the inside wall of casing, and is close to 1 bottom one side setting of fish pond body, and aeration dish 12 is installed in the top of backup pad 13, and surface distribution aeration hole for upwards roll after getting into the water aeration in moving bed bioreactor 2, circulate in moving bed bioreactor 2. The guide ring 7 is arranged in the center of the shell and positioned above the aeration disc 12, the guide ring 7 is in a hollow cylindrical shape, and the outer side wall is connected to the inner side wall of the shell through a plurality of support rods 6. The aquaculture water flows into the moving bed bioreactor 2, the filter material is placed in the shell, and the water turns outwards at the position of the flow guide ring 7 under the aeration action of the aeration disc 12 to drive the turning of the filter material. The cover plate 8 covers the upper port of the shell.

Outlet pipe 9 is "7" font, and the casing is worn to locate by the upper end, and the intercommunication removes bed bioreactor 2 and fish pond body 1, and the inside wall downwardly extending to aeration dish 12's top is followed to the lower extreme, and it has the air stone to fill in outlet pipe 9, and the solid fixed ring 10 that is equipped with in the solid fixed ring 10 in the outside of outlet pipe 9, and solid fixed ring 10 is fixed with connecting piece fixed connection to removes the inside wall of bed bioreactor 2. Under the action of aeration airflow, water flows into the fish pond body 1 through the water outlet pipe 9, and by controlling the air flow, the retention time of the water flow in the moving bed bioreactor 2 can be controlled, so that the water yield and the water flow state in the fish pond body 1 can be regulated. The water outlet pipes 9 are circumferentially arranged at intervals along the inner side wall of the shell, preferably four and evenly distributed.

The solid fixed ring 10 of lateral wall at the casing is equipped with aeration ring 11, and aeration ring 11 is installed in the position that is close to backup pad 13, has the through-hole that the aperture equals at aeration ring 11's lateral wall circumference evenly distributed, and when the aeration, the water flow state of formation is favorable to the suspended particles come-up, and then overflow arrangement 3 discharges on the accessible, can the effective control breed water flow state, is favorable to the collection and the blowdown of particulate matter. The flow state of the water in the fish pond body 1 is controllable, and the flow state of the water can be controlled by controlling the water yield of the water outlet pipe 9 of the moving bed bioreactor 2 and the aeration quantity at the bottom of the aeration ring 11.

The moving bed bioreactor 2 is installed in the fishpond body 1 through an installation component. The mounting assembly comprises a fixing rod 5 which is positioned at the upper end of the moving bed bioreactor 2 for stabilization, an upper support 20 which is positioned at the bottom of the moving bed bioreactor 2 for positioning and fixing, a lower support 18 and a connecting rod 19. The edge of the bottom shell of the moving bed bioreactor 2 extends downwards to form an inclined section, an inverted hollow round table is formed at the bottom, and a lower port with a smaller diameter is opposite to an upper port of a bottom row device 17.

The upper bracket 20 is provided with a plurality of circumference and installs at the bottom edge of moving bed bioreactor 2, the bottom at fish pond body 1 is installed to undersetting 18, a plurality of circumference sets up at the bottom of arranging device 17's upper port periphery, the interior screw hole has all been seted up at the relative both ends of upper bracket 20 and undersetting 18, connecting rod 19 is double-thread screw, both ends difference threaded connection is in upper bracket 20 and undersetting 18, through the distance of adjusting the spiral installation, can realize moving bed bioreactor 2's upper and lower altitude mixture control. Remove and be formed with collection dirty clearance 15 between moving bed bioreactor 2 and the last port of end row device 17, through the high regulation of installation component to moving bed bioreactor 2, can realize the width regulation to collection dirty clearance 15, the collection of the particulate matter of being convenient for.

The fixing rod 5 is connected and installed between the upper edge of the moving bed bioreactor 2 and the side wall of the fishpond body 1, and is stabilized above the moving bed bioreactor 2. Move the perforation that supplies dead lever 5 to wear to establish all offered at the casing of moving bed bioreactor 2 and the top edge of fish pond body 1, and the both ends of dead lever 5 are colluded the form setting, carry out activity stabilization moving bed bioreactor 2 through wearing to locate in the perforation, and dead lever 5 is set for along the circumference of moving bed bioreactor 2 has a plurality ofly, and preferred settlement has two and the symmetry setting in the both sides of moving bed bioreactor 2. The upper edge of the shell of the moving bed bioreactor 2 is turned outwards to form a curled edge, the through hole is arranged on the curled edge, and the cover plate 8 can be normally covered on the upper port of the shell.

The culture water is flowed into the moving bed bioreactor 2, under the aeration action of the aeration disc 12, the water rolls at the position of the guide ring 7 and is fully contacted with the filter material, the water circulates into the fish pond body 1 along the water outlet pipe 9, the fish pond body 1 is cultured, the aeration ring 11 annularly arranged on the outer side of the moving bed bioreactor 2 can supplement oxygen into the fish pond body 1 and simultaneously circulate the water in the fish pond body 1, and suspended particles can be discharged through the upper overflow device 3; the upper overflow device 3 regulates and controls the water level in the fish pond body 1, and the water overflowing from the upper overflow device 3 is conveyed to the filter tank; the particulate matters in the fish pond body 1 are deposited at the bottom, can be gathered to the bottom discharge device 17 through the dirt gathering gap 15 by arranging the inclined bottom, and are discharged to the fermentation tank through the drain pipe 16 of the bottom discharge device 17; conveying the filter residue in the filter tank to a fermentation tank for treatment, discharging the filter residue after fermentation treatment in the fermentation tank and supplying the filter residue to plants, and optionally conveying the fermentation liquid to a filter box or supplying the fermentation liquid to the plants; the filter box can provide the water flowing into the moving bed bioreactor 2 again after the water body after being filtered is subjected to operations of oxygenation, UV disinfection, temperature regulation and the like.

Through this system, simple structure solves in seed breeding system, fish and vegetable intergrowth system facility, equipment requirement higher among the medium and small-size farming systems, the problem that the structure is complicated, can realize concentrating the collection to solid particulate matter, can realize the clearance blowdown and be used for planting the plant, improves added value, and facility equipment is simple, and the investment is little, is favorable to using widely.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.

Claims

1. A self-purification fish pond system comprises a fermentation pond and a filter box, and is characterized by also comprising a self-purification fish pond;

the self-purification fish pond comprises

2. The self-cleaning fish pond system as recited in claim 1, wherein: the installation component of the moving bed bioreactor comprises

3. The self-cleaning fish pond system as recited in claim 2, wherein: the connecting rod is a double-threaded screw, and inner threaded holes which are in threaded connection with the double-threaded screw are formed in the two ends of the upper support and the lower support;

4. A self-cleaning fish pond system as claimed in claim 3, wherein: the moving bed bioreactor comprises a shell, a supporting plate, an aeration disc, a flow guide ring, a water outlet pipe and a cover plate;

5. The self-cleaning fish pond system as recited in claim 4, wherein: still including having the ring and locate the outlet pipe and be connected to the solid fixed ring of casing inside wall, the outlet pipe is provided with a plurality of in the inboard circumference of casing, the air stone has been placed to the inboard of outlet pipe.

6. The self-cleaning fish pond system as recited in claim 1, wherein: the fish pond body is cylindrical shell-shaped, and the bottom of the fish pond body is connected to the upper port of the bottom row device from the edge to the center direction downward sloping.

7. The self-cleaning fish pond system as recited in claim 1, wherein: the outer side of the moving bed bioreactor close to the bottom of the fish pond body is annularly provided with an aeration ring, and through holes with equal apertures are uniformly distributed in the circumferential direction of the aeration ring.

8. The self-cleaning fish pond system as recited in claim 7, wherein: the upper overflow device comprises a connecting pipe and an overflow pipe; one end of the connecting pipe is fixedly connected to the side wall of the fish pond body, and the other end of the connecting pipe is connected to the overflow pipe; the overflow pipe is hollow cylinder, and the horizontal side wall of placing communicates and connects in the connecting pipe, the spillway hole has evenly been seted up to the lateral wall of overflow pipe.

9. The self-cleaning fish pond system as recited in claim 8, wherein: the connecting pipe of the upper overflow device comprises a fixed pipe fixedly connected to the side wall of the fishpond body and an adjusting pipe movably connected between the fixed pipe and the overflow pipe in a threaded mode and used for adjusting the water level.