NL2037825A

NL2037825A - Pond industrial aquaculture system with ecological circulation

Info

Publication number: NL2037825A
Application number: NL2037825A
Authority: NL
Inventors: Gu Zhaojun; Tian Changfeng; Wu Fan; Chen Shi; Zhu Hao
Original assignee: Fishery Machinery And Instrument Res Institute
Priority date: 2024-04-16
Filing date: 2024-05-31
Publication date: 2024-06-19
Also published as: CN118415128A; NL2037825B1

Abstract

The present invention provides a pond industrial aquaculture system with ecological circulation, comprising an industrial aquaculture system, a pond ecological circulation 5 puriﬁcation system and a tail water resource utilization system; the industrialized aquaculture system comprises a circular culture pond and a circulating water treatment system, and the industrialized aquaculture system is communicated with the tail water resource utilization system and the pond ecological circulation purification system. In the present invention, the solid wastes in the industrialized aquaculture system can be 10 effectively extracted and the tail water can be recycled, which reduce the discharge of culture pollutants and effectively reduce pollution, small-particle solid wastes and soluble nutrients such as feces and residual bait produced by breeding objects are absorbed by low-nutrient organisms in the ecological circulation purification system, and dissolved nutrients are absorbed by aquatic plants and algae, which become natural 15 bait for feeding fish, river crabs and the like, and further provide the transformation of feed nutrition to breeding objects, thus realizing the ecological puriﬁcation of aquaculture water bodies, maintaining excellent water quality in the whole breeding process and improving the quality of aquatic products. 20

Description

Pond industrial aquaculture system with ecological circulation

Technical field

The present invention relates to the technical field of ecological circulation culture, in particular to a pond industrial aquaculture system with ecological circulation.

Background technology

Aquaculture has become an important part of modern agriculture in China, supporting the rapid development of national economy. There are often different types of aquaculture ponds in aquaculture, most of which are outdoor, with simple configuration and single function.

The pollution of aquaculture to water body mainly comes from the residual bait that is not used by aquaculture organisms, the feces of aquaculture objects, etc. The research shows that only 20% to 30% of nitrogen and 40% to 45% of phosphorus in feed are used by aquaculture organisms, and all other nitrogen and phosphorus enter the aquaculture environment in the form of residual bait, feces and dissolved state, becoming rich nutrients that lead to water pollution. Therefore, the key to solve the problem of aquaculture environmental pollution is to improve the utilization rate of the feed, so that nutrients can be converted into the biomass of aquaculture organisms as much as possible, thus reducing the proportion of nutrients entering the surrounding environment.

Therefore, we propose a pond industrial aquaculture system with ecological circulation.

Summary of the invention

A purpose of the present invention is to provide a pond industrial aquaculture system with ecological circulation aiming at the shortcomings of the prior art, which can effectively extract the solid wastes in the industrialized aquaculture system, recycle tail water, reduce the discharge of culture pollutants and effectively reduce pollution; small- particle solid wastes and soluble nutrients such as feces and residual bait produced by breeding objects are absorbed by low-nutrient organisms in the ecological circulation purification system, and dissolved nutrients are absorbed by aquatic plants and algae, which become natural bait for feeding fish, river crabs and the like, and further provide the transformation of feed nutrition to breeding objects, thus realizing the ecological purification of aquaculture water bodies, maintaining excellent water quality in the

0. whole breeding process and improving the quality of aquatic products.

In order to achieve the above purpose, the present invention provides the following technical solutions: a pond industrial aquaculture system with ecological circulation, comprising an industrial aquaculture system, a pond ecological circulation purification system and a tail water resource utilization system; the industrialized aquaculture system comprises a circular culture pond and a circulating water treatment system, and the industrialized aquaculture system is communicated with the tail water resource utilization system and the pond ecological circulation purification system; the tail water resource utilization system comprises a fermentation tank and a planting area, and the tail water resource utilization system is communicated with an industrial breeding system through a solid- liquid separation device; and the pond ecological circulation purification system comprises an ecological pond, overflow weirs and an ecological ditch; and the pond ecological circulation purification system is connected with the industrialized aquaculture system through a sterilization pond,

The solid-liquid separation device is set to separate the wastewater in the industrialized aquaculture system, and solid wastes separated are fermented by the fermentation tank and used as nutrient components in the planting area, while the water filtered is purified by the ecological pond and the overflow weir of the ecological circulation purification system, and then returned to the industrialized aquaculture system after being sterilized by the sterilization pool.

The solid-liquid separation device in the present embodiment comprises a microfiltration machine and a rotating solid-liquid separation mechanism; the microfiltration machine roughly separates the wastewater in the industrialized aquaculture system to obtain waste mud, and the waste mud is finely separated by the rotating solid-liquid separation mechanism.

The rotating solid-liquid separation mechanism comprises a working frame; a collection shell, which is installed on the working frame; a discharging pipe and a drain pipe are installed at a bottom portion of the collection shell; a first plate is installed on the working frame; a rotating shaft a is rotatably disposed on the first plate; a bottom plate is installed on the rotating shaft a; a feed port is internally provided on the bottom plate; a rotating sleeve is rotatably disposed outside the rotating shaft; a connecting plate b is installed on the rotating sleeve; a ring 1s mounted on the connecting plate b;

The rotating solid-liquid separation mechanism also comprises an extrusion assembly, which is installed on the ring; driving assemblies ¢ drive the rotating shaft a and the rotating sleeve to rotate;

The extrusion assembly comprises L-shaped plates, and four L-shaped plates are installed in the ring; a support plate is mounted on the L-shaped plates; fixing plates are installed between two L-shaped plates; fixing sleeves are installed on the fixing plates; a moving rod is slidably arranged in the fixing sleeves; and the extrusion plates are installed on the moving rod.

A rotating drive c is provided on the support plate; a disc is provided on an output end of the rotating drive; a plurality of chutes are provided on the disc; and sliding rods are provided on the moving rod and slide in the chutes 2181; a delivery pipe is provided on the work frame c; a closure plate is provided on the bottom of the delivery pipe; and a through-groove is arranged in the closure plate.

The driving assemblies c comprises a second plate installed on the working frame; a rotating drive f is installed on the second plate; an output end of the rotary drive f drives the rotating shaft a to rotate; a rotating drive d is installed on the second plate; a rotating shaft b is installed at an output end of the rotating drive d; and the rotating shaft b and the rotating sleeve are in transmission connection through a belt;

A linear drive d is provided on the working frame; an extrusion shell is provided on an output end of the linear drive d 226; and filter holes are arranged on the ring and the bottom plate.

The rotating drive f and the rotating drive d are driving motors.

The present invention has beneficial effects that: (1) In the present invention, the solid wastes in the industrialized aquaculture system can be effectively extracted and the tail water can be recycled, which reduce the discharge of culture pollutants and effectively reduce pollution; small-particle solid wastes and soluble nutrients such as feces and residual bait produced by breeding objects are absorbed by low-nutrient organisms in the ecological circulation purification system, and dissolved nutrients are absorbed by aquatic plants and algae, which become natural bait for feeding fish, river crabs and the like, and further provide the transformation of feed nutrition to breeding objects, thus realizing the ecological purification of aquaculture water bodies, maintaining excellent water quality in the whole breeding process and improving the quality of aquatic products.

(2) In the present invention, the driving assemblies c drive the ring to rotate until position of the cavity a matches with the through-groove; the extrusion plates squeeze the waste mud from one direction; and the linear drive d drives the extrusion shell to move downwards to squeeze the waste mud in the cavity a again, extruding the waste mud from two directions to enhance extruding effects of the waste mud. (3) In the present invention, the driving assemblies c drive the bottom plate to rotate, so that the positions of the through-groove, the cavity a, the feed port and the discharging pipe are corresponding; the linear drive d drives the extrusion shell to move downwards to press the extruded waste mud in the cavity a into the discharging pipe for discharge.

Description of drawings

Fig. 1 is a schematic diagram of an integral module of the present invention;

Fig. 2 is a schematic plan view of a circular culture pond and a microfiltration machine of the present invention;

Fig. 3 is a schematic plan view of a sedimentation zone, a biological filtration zone and an ecological purification zone of the present invention;

Fig. 4 is a schematic diagram of a rotating solid-liquid separation mechanism from a first angle of the present invention;

Fig. 5 is a schematic diagram of the rotary solid-liquid separation mechanism from a second angle of the present invention;

Fig. 6 is a schematic structural diagram of a ring and a bottom plate of the present invention;

Fig. 7 is a schematic structural view of an extrusion assembly of the present invention;

Fig. 8 is a schematic sectional view of the extrusion assembly of the present invention; and

Fig. 9 is a schematic view of a cross-sectional structure of a collection shell of the present invention.

In the drawings: 1. circular culture pond; 4. circulating water treatment system; 5. microfiltration machine; 8. ecological pond; 9. a first overflow weir; 10. ecological ditch; 11. a second overflow weir; 2. rotating solid-liquid separation mechanism; 201. working frame; 202. collection shell; 2021. discharging pipe; 2022. drain pipe; 203. a first plate; 204. rotating shaft a, 205. bottom plate; 2051. feed port; 206. rotating sleeve; 207.

connecting plate b; 208. ring; 209. delivery pipe; 21. extrusion assembly; 210. closure plate; 2101. through-groove; 211. L-shaped plate; 212. support plate; 213. fixing plate; 214. fixing sleeve; 215, moving rod; 216. extrusion plate; 217. rotating drive c¢; 218. disc; 2181. chute; 219. sliding rod; 22. driving assembly c; 221. a second plate; 222. rotating drive f, 223. rotating drive d; 224. rotating shaft b; 225. belt; 226. linear drive d; 227. extrusion shell.

Embodiments

In the following, the technical solutions in the embodiments of the invention will be clearly and completely described with reference to the attached drawings. Obviously, the described embodiments are only some of the embodiments of the present invention, but not the whole embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the field without creative labor belong to the protective scope of the present invention.

In the description of the present invention, it should be understood that positions or positional relationships the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate are based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the equipment or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as limiting the present invention.

In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined as "first" and "second" may comprise one or more of these features explicitly or implicitly.

In the description of the present invention, "plural" means two or more, unless otherwise specifically defined.

Embodiment 1

As shown in fig. 1- fig. 9, the present embodiment provides a pond industrial aquaculture system with ecological circulation, comprising an industrial aquaculture system, a pond ecological circulation purification system and a tail water resource utilization system; the industrialized aquaculture system comprises a circular culture pond 1 and a circulating water treatment system 4, and the industrialized aquaculture system is communicated with the tail water resource utilization system and the pond ecological circulation purification system; the tail water resource utilization system comprises a fermentation tank and a planting area, and the tail water resource utilization system is communicated with an industrial breeding system through a solid-liquid separation device; and the pond ecological circulation purification system comprises an ecological pond 8, overflow weirs (a first overflow weir 9 and a second overflow weir 11) and an ecological ditch 10; the pond ecological circulation purification system is connected with the industrialized aquaculture system through a sterilization pond; grass carp or other economic fish are cultured in the circular culture pond 1; filter-feeding fish and snails are stocked in the ecological pond 8; and multiple groups of brushes are hung and aquatic plants are planted in the ecological ditch 10.

In the present embodiment, the solid-liquid separation device is set to separate the wastewater in the industrialized aquaculture system, and solid wastes separated are fermented by the fermentation tank and used as nutrient components in the planting area, while the water filtered is purified by the ecological pond 8 and the overflow weir of the ecological circulation purification system, and then returned to the industrialized aquaculture system after being sterilized by the sterilization pool.

As shown in fig. 3, the present embodiment also comprises a sedimentation zone, a biological filtration zone and an ecological purification zone; liquid produced by the solid-liquid separation device is transported to inside of the sterilization pool for sterilization through the ecological purification zone; the sedimentation zone is used for sedimentation treatment of impurities in the liquid; and the liquid in the sedimentation zone is discharged into the biological filtration zone; among them, the solid wastes treated can be fermented to produce a certain amount of fertilizer, and the filtered liquid can be discharged into the pond ecological circulation purification system for utilization, the pond ecological circulation purification system can cultivate the filter-feeding fish, snails and aquatic plants in turn according to a required nutritional level; this arrangement can improve efficiency of nutrients to feed fish, crabs and other breeding objects, and reduce proportion of rich nutrients produced and entering the water body;

According to the present embodiment, the solid wastes in the industrialized aquaculture system can be effectively extracted, and tail water can be recycled, so that the discharge of aquaculture pollutants is reduced, and pollution is effectively reduced, small solid wastes and soluble nutrients such as feces and residual bait produced by breeding objects are absorbed by low-nutrient organisms in the ecological circulation purification system;

Aquatic plants and algae absorb dissolved nutrients and become natural bait for the feeding fish, river crabs, etc., which further facilitates transformation of feed nutrition to aquaculture objects, thus realizing the ecological purification of aquaculture water, keeping the excellent water quality in the whole aquaculture process and improving the quality of aquatic products.

Embodiment 2

As shown in fig. 4- fig. 9, in which the same or corresponding parts as in

Embodiment 1 are denoted by the corresponding reference numerals, only the differences from Embodiment 1 will be described below for simplicity. The second embodiment is different from the first embodiment in that:

As shown in fig. 4- fig. 9, the solid-liquid separation device in the present embodiment comprises a microfiltration machine 5 and a rotating solid-liquid separation mechanism 2; the microfiltration machine 5 roughly separates the wastewater in the industrialized aquaculture system to obtain waste mud, and the waste mud is finely separated by the rotating solid-liquid separation mechanism 2; in the present embodiment, the rotating solid-liquid separation mechanism 2 comprises a working frame 201; a collection shell 202, which is installed on the working frame 20; a discharging pipe 2021 and a drain pipe 2022 are installed at a bottom portion of the collection shell 202; a first plate 203 1s installed on the working frame 201; a rotating shaft a 204 is rotatably disposed on the first plate 203; a bottom plate 205 is installed on the rotating shaft a 204; a feed port 2051 is internally provided on the bottom plate 205; a rotating sleeve 206 is rotatably disposed outside the rotating shaft a 204; a connecting plate b 207 is installed on the rotating sleeve 206; a ring 208 is mounted on the connecting plate b207; an extrusion assembly 21 is installed on the ring 208; driving assemblies c 22 drive the rotating shaft a 204 and the rotating sleeve 206 to rotate; a delivery pipe 209 is installed on the working frame 201, and a closure plate 210 is installed at a bottom portion of the delivery pipe 209; a through-groove 2101 is formed in the closure plate 210; filter holes are formed on the ring 208 and the bottom plate 205; and the collection shell 202 is located outside the ring 208.

In the present embodiment, the ring 208 and the bottom plate 205 are driven to rotate synchronously by pumps and the delivery pipe 209 in cooperation with the driving assemblies c 22, so that the waste mud falls into the three cavities a, b and c (shown in fig. 7) in turn; and as shown in figs. 4- 9, the extrusion assembly 21 comprises L-shaped plates 211, and four L-shaped plates 211 are installed in the ring 208; a support plate 212 1s mounted on the L-shaped plates 211; fixing plates 213 are installed between two L-shaped plates 211; fixing sleeves 214 are installed on the fixing plates 213; a moving rod 215 is slidably arranged in the fixing sleeves 214; and the extrusion plates 216 are installed on the moving rod 215. a rotating drive c 217 is provided on the support plate 212; a disc 218 is provided on an output end of the rotating drive ¢ 217; a plurality of chutes 2181 are provided on the disc 218; and sliding rods 219 are provided on the moving rod 215 and slide in the chutes 2181; in the present embodiment, the rotating drive c 217 drives the disc 218 to rotate; the sliding rods 219 slide in the chutes 2181; the moving rod 215 slides outward along the fixing sleeves 214; the extrusion plates 216 are driven to extrude the water in the waste mud, and the water extruded is discharged through the filter holes on the bottom plate 205 and the ring 208;

As shown in figs. 4- 9, the driving assemblies c 22 comprises a second plate 221 installed on the working frame 201; a rotating drive £ 222 is installed on the second plate 221; an output end of the rotary drive f 222 drives the rotary shaft a 204 to rotate; a rotating drive d 223 is installed on the second plate 221; a rotating shaft b 224 is installed at an output end of the rotating drive d 223; the rotating shaft b 224 and the rotating sleeve 206 are in transmission connection through a belt 225; a linear drive d 226 is provided on the working frame 201; and an extrusion shell 227 is provided on an output end of the linear drive d 226;

It should be noted that the rotating drive f 222 can directly drive the rotating shaft a 204 and the bottom plate 205 to rotate, and the rotating drive d 223 drives the rotating sleeve 206 to rotate and drive the ring 208 to rotate through the belt 225, which means that the driving assemblies c 22 can drive the bottom plate 205 and the ring 208 to rotate, and the rotation of the bottom plate 205 and the ring 208 is independent and unaffected; and

In the present embodiment, the driving assemblies c 22 drive the ring 208 to rotate until position of the cavity a matches with the through-groove 2101; the extrusion plates 216 squeeze the waste mud from one direction; and the linear drive d 226 drives the extrusion shell 227 to move downwards to squeeze the waste mud in the cavity a again, extruding the waste mud from two directions to enhance extruding effects of the waste mud. Similarly, the waste mud 1n the cavities b and c can be extruded sequentially.

In the present embodiment, the driving assemblies c 22 drive the bottom plate 205 to rotate, so that the positions of the through-groove 2101, the cavity a, the feed port 2051 and the discharging pipe 2021 are corresponding; the linear drive d 226 drives the extrusion shell 227 to move downwards to press the extruded waste mud in the cavity a into the discharging pipe 2021 for discharge. The extruded waste mud can be treated by the fermentation tank to generate a certain amount of fertilizer, and the fertilizer can fertilize the planting area.

Embodiment 3

This embodiment provides a solid-liquid separation method, which comprises the following steps:

Step 1, material pumping process: driving the ring 208 and the bottom plate 205 to rotate synchronously through cooperation of the pump and the delivery pipe 209 with the driving assemblies c 22, so that the waste mud falls into the cavities a, b and c (shown in Figure 7) in turn;

Step 2, extrusion process: driving the disc 218 to rotate through the rotating drive c 217, the sliding rods 219 slide in the chutes 2181; the moving rod 215 slides outward along the fixing sleeves 214; and the extrusion plates 216 are driven to extrude the water in the waste mud, and the water extruded is discharged through the filter holes on the bottom plate 205 and the ring 208;

Step 3, enhanced extrusion process: the driving assemblies c 22 drive the ring 208 to rotate until the position of the cavity a matches with the through-groove 2101; the extrusion plates 216 extrude the waste mud from one direction, and the linear drive d 226 drives the extrusion shell 227 to move downwards to extrude the waste mud in the cavity a again, so as to extrude the waste mud from two directions, thereby enhancing extrusion effects on the waste mud;

Step 4: discharging process: the driving assemblies c 22 drives the bottom plate 205 to rotate, so that the position of the through-groove 2101, the cavity a, the feed port 2051 and the discharging pipe 2021 are corresponding, and the linear drive d 226 drives the extrusion shell 227 to move downwards to press the dried waste mud in the cavity a into the discharging pipe 2021 for discharge.

The above are only the preferred embodiments of the present invention, and they are not used to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be comprised in the protective scope of the present invention.

Claims

S11 - Conclusions

1. Industrial pond aquaculture system with ecological circulation, which includes an industrial aquaculture system, an ecological pond circulation purification system and a tracking water resource utilization system; wherein the industrialized aquaculture system includes a circular breeding pond and a circulating water treatment system, and the industrialized aquaculture system is connected to the tracking water resource utilization system and the ecological pond circulating purification system; wherein the tracking water resource utilization system includes a fermentation tank and a planting area, and the tracking water resource utilization system is connected to an industrial growing system via a solid-liquid separation device; and wherein the ecological pond circulation treatment system includes an ecological pond, overflow dams (a first overflow dam and a second overflow dam) and an ecological ditch; the ecological pond circulation purification system is connected to the industrialized aquaculture system via a sterilization pond; grass carp or other economical fish are bred in the circular breeding pond; filter-feeding fish and snails are released into the ecological pond; and several groups of brushes are hung and water plants are planted on the brushes in the ecological ditch.

2. Industrial pond aquaculture system with ecological circulation according to claim 1, wherein the solid-liquid separation device is set to separate the waste water in the industrialized aquaculture system, and separated solid waste is fermented by the fermentation tank and used as nutritional components in the planting area, while the filtered water is purified by the ecological pond 8 and the overflow dam of the ecological circulation purification system, and then returned to the industrialized aquaculture system after being sterilized by the sterilization pond; and wherein the system also includes a sedimentation zone, a biological filtration zone and an ecological purification zone; where liquid passing through the solid

liquid separation device is produced, is transported to the inside of the sterilization pond for sterilization through the ecological purification zone; wherein the sedimentation zone is used for sedimentation treatment of impurities in the liquid; and the liquid in the sedimentation zone is discharged into the biological filtration zone.

An industrial pond aquaculture system with ecological circulation according to claim 2, wherein the solid-liquid separation device comprises a microfiltration machine (5) and a rotating solid-liquid separation mechanism (2); and the microfiltration machine (5) performs coarse separations on the wastewater in the industrialized aquaculture system, and then performs fine separations by the rotating solid-liquid separation mechanism (2).

The industrial pond aquaculture system with ecological circulation according to claim 3, wherein the rotating solid-liquid separation mechanism (2) comprises: a working frame (201); a collection case (202) installed on the working frame 20 and a drain pipe (2021) and a drainage pipe (2022) installed on a bottom portion of the collection case (202); a first plate (203) installed on the working frame (201); a rotating shaft a (204) rotatably mounted on the first plate (203); a bottom plate (205) installed on the rotating shaft a 204 and a supply port (2051) provided internally on the bottom plate (205); a rotating sleeve (206) rotatably mounted outside the rotating axis a (204); a connecting plate b (207) installed on the rotating sleeve (206); and a ring (208) mounted on the connection plate b (207) with the collection sheath (202) located outside the ring (208).

An industrial pond aquaculture system with ecological circulation according to claim 4, wherein the rotating solid-liquid separation mechanism (2) also comprises:

an extrusion assembly (21) installed on the ring (208); and drive assemblies c (22), which drive the rotating shaft a (204) and the rotating sleeve (206) to rotate.

An industrial pond aquaculture system with ecological circulation according to claim 5, wherein the extrusion assembly (21) comprises: L-shaped plates (211), four of which are installed in the ring 208; a support plate (212) mounted on the L-shaped plates 211; mounting plates (213) installed between two L-shaped plates 211; mounting sleeves (214) installed on the mounting plates (213); a moving rod (215) slidably arranged within the mounting sleeves (214); and the extrusion plates (216) installed on the moving rod (215).

An industrial pond aquaculture system with ecological circulation according to claim 6, wherein a rotary drive ce (217) is provided on the support plate (212); a disc (218) is provided on an output end of the rotary drive c (217); a plurality of chutes (2181) are provided on the disk (218); and sliding rods (219) are provided on the moving rod (215) and slide into the chutes (2181); wherein a dispensing pipe (209) is installed on the working frame (201), and a closing plate (210) is installed at a bottom portion of the dispensing pipe (209); and a through groove (2101) is formed in the closing plate (210);

The industrial pond aquaculture system with ecological circulation according to claim 7, wherein the drive assemblies c (22) include: a second plate (221) installed on the working frame (201); a rotary drive f (222) installed on the second plate (221) and the rotary drive f (222) driving the rotary shaft a (204) to rotate; a rotary drive d (223) installed on the second plate (221); a rotating shaft b (224) installed at an output end of the rotating drive d (223); and a belt (225), through which the rotating shaft b (224) and the rotating sleeve (206) are in transmission connection.

An industrial pond aquaculture system with ecological circulation according to claim 8, wherein a linear drive d (226) is provided on the working frame (201); an extrusion sleeve (227) is provided on an output end of the linear drive d (226); and filter holes are formed on the ring (208) and the bottom plate (205).

An industrial pond aquaculture system with ecological circulation according to claim 9, wherein the rotary drive f (222) and the rotary drive d (223) are drive motors.