CN212993645U

CN212993645U - Floating raft frame for seaweed cultivation

Info

Publication number: CN212993645U
Application number: CN202021390392.4U
Authority: CN
Inventors: 李春晓; 文国樑; 郑晓生; 林伟坤
Original assignee: Shantou Fisheries Technology Extension Center Station; South China Sea Fisheries Research Institute Chinese Academy Fishery Sciences
Current assignee: Shantou Fisheries Technology Extension Center Station; South China Sea Fisheries Research Institute Chinese Academy Fishery Sciences
Priority date: 2020-07-15
Filing date: 2020-07-15
Publication date: 2021-04-20
Anticipated expiration: 2030-07-15

Abstract

The utility model provides a superficial raft frame is bred to marine alga, its characterized in that includes raft frame, at least one tray, a plurality of floats and at least one weight, and each float knot is on raft frame, and the tray is installed on raft frame, and mesh form plastic sheet has been laid to the tray bottom, and the weight passes through the rope and can dismantle with raft frame or tray and be connected. The utility model discloses a mesh form plastic sheet supplies the alga body of marine alga such as gracilaria alga to adhere to as the anchorage for the alga body can grow on the marine alga is bred float raft frame, and utilize the buoyancy of float, raft frame etc. to make raft frame float on the surface of water, tray and mesh form plastic sheet submergence are in the water top layer, thereby be applicable to the breed of the marine alga that needs the anchorage such as gracilaria alga in the deep waters, and can make the alga body can live in the water top layer.

Description

Floating raft frame for seaweed cultivation

Technical Field

The utility model relates to an aquaculture facility, concretely relates to marine alga is bred and floats raft frame.

Background

For aquatic plants and algae needing substrate attachment, such as gracilaria algae in the natural environment, the aquatic plants and algae are generally attached to seabed sand grains or other hard objects (such as rocks, shells, wood blocks or other organisms) to survive and grow. The cultivated and cultivated seaweed such as Gracilaria algae and the like which need to be attached to the substrate can be directly attached to and grow on the bottom of the pond on shallow water surfaces or shallow ponds.

At present, many sea areas only carry out the cultivation of marine animals, even only carry out the cultivation of single species, however, the mode causes the deterioration of the ecological environment of the water area, causes the outbreak of diseases of the cultivated animals, and seriously restricts the continuous development of the marine animal cultivation industry. The seaweed cultivation is carried out in the deep water area, besides the economic benefit of the seaweed cultivation, the seaweed can absorb eutrophication substances (such as nitrogen, phosphorus and the like) in the water body, and the seaweed cultivation method has certain economic and environmental significance for improving water quality, balancing aquatic ecology, beautifying the environment and the like. However, when cultivating seaweeds needing attaching bases such as gracilaria algae in a deep water area, a floating frame needs to be constructed and a proper attaching base needs to be provided, so that algae can live on the surface layer of water to ensure photosynthesis of the algae, otherwise, survival and growth of the algae are affected due to insufficient light after the algae sink.

Disclosure of Invention

The utility model aims to solve the technical problem that a marine alga is bred and floats raft frame is provided, this kind of marine alga is bred and floats raft frame and is applicable to the breed of the marine alga that needs the anchorage substrate such as breeding gracilaria algae in the deep water area to can make the alga body can live on the water top layer. The technical scheme is as follows:

the utility model provides a superficial raft frame is bred to marine alga, its characterized in that includes raft frame, at least one tray, a plurality of floats and at least one weight, and each float knot is on raft frame, and the tray is installed on raft frame, and mesh form plastic sheet has been laid to the tray bottom, and the weight passes through the rope and can dismantle with raft frame or tray and be connected.

When the seaweed cultivation buoyant raft frame is used, the buoyant raft frame is placed in water, the buoyant force of the floater, the buoyant raft frame and the like is utilized to enable the raft frame to float on the water surface, and the tray and the mesh-shaped plastic sheet are immersed in the water surface layer; the mesh-shaped plastic sheet can be used as an attaching base for attaching alga bodies of gracilaria algae and the like, so that the alga bodies can grow on the tray of the alga culture float raft frame. Through the combination of the pendant and the floater, the raft frame and the tray are more favorably kept stable, the tray is immersed into water to a proper depth, and the immersed water depth of the tray is suitable for the growth water depth of the algae.

Along with the growth of the algae, the depth of the tray and the algae thereon immersed in water is usually adjusted according to the length of the algae. When the depth of the tray and the algae on the tray immersed in water needs to be increased, the tray can be realized by increasing the number of the pendants or reducing the number of the floaters. When the immersion depth of the tray and the algae on the tray needs to be reduced, the immersion depth can be reduced by reducing the number of the pendants or increasing the number of the floaters.

The pendant can be made of metal blocks, concrete blocks, bottles filled with sand and the like.

In a preferred scheme, a layer of coarse sea sand or gravel is paved on the mesh-shaped plastic sheet. The coarse sea sand or the broken stone can also be used as an attaching base, which is more beneficial to the attaching growth of the algae.

The tray may be made of plastic. The height of the tray is about 10-20 cm. The shape of the tray can be designed flexibly, such as rectangle, circle, etc., for example: the tray is rectangular, and the length and the width of the tray are about 200 cm and 100 cm respectively. The bottom of the tray may or may not be perforated.

In a preferred embodiment, the algal cultivation raft frame comprises a plurality of trays, and the plurality of trays are arranged in a plurality of rows and a plurality of columns. In another preferred embodiment, the above-mentioned algal cultivation raft frame comprises a plurality of trays, and the plurality of trays are arranged in a row.

Usually, the edge of the top opening of the tray is connected with the raft frame through a connecting rope, so that the tray is installed on the raft frame.

In a preferred embodiment, the raft frame is formed by connecting a plurality of transverse rods and a plurality of longitudinal rods, and the raft frame has at least one rectangular space; each rectangular space is provided with a tray, and the edge of the top opening of each tray is fixedly connected with the corresponding transverse rod or the corresponding longitudinal rod through a connecting rope. The transverse rods and the longitudinal rods can be made of bamboo rods, wood rods or PVC pipes. In this kind of scheme, the weight accessible rope is connected with the raft frame, also can be connected with the tray through the rope. In a specific scheme, the raft frame is provided with a plurality of rectangular spaces arranged in a plurality of rows and a plurality of columns, and correspondingly, the trays are arranged in a plurality of rows and a plurality of columns (the trays are connected into a sheet). In another specific scheme, the raft frame is provided with a plurality of rectangular spaces which are arranged in a row, and correspondingly, the trays are arranged in a row (the trays are connected into a belt).

In another preferred scheme, the raft frame is formed by connecting two longitudinal floating ropes and a plurality of transverse rods, the transverse rods are sequentially arranged along the length direction of the longitudinal floating ropes, two ends of each transverse rod are respectively connected with the two longitudinal floating ropes, and the raft frame is provided with a plurality of rectangular spaces arranged in a row; each rectangular space is provided with a tray, a plurality of (such as three or four) lifting ropes are arranged between the edge of the opening at the top of the tray and the raft frame, the lower ends of the lifting ropes are connected with the edge of the opening at the top of the tray, and the upper ends of the lifting ropes are connected with the corresponding longitudinal floating ropes or the corresponding transverse rods. In this arrangement the trays are aligned. In this arrangement, the weight is typically attached to the tray to better hold the tray in the desired position. In addition, the length of the lifting rope can be adjusted when needed, so that the depth of the tray immersed in water can be adjusted.

In the preferred scheme, above-mentioned marine alga is bred and floats raft frame still includes the location anchor, and the location anchor passes through hawser and is connected with raft frame (hawser one end is connected with raft frame, the other end is connected with the location anchor), through the location anchor anchoring in submarine, can fix the position of marine alga breeding float raft frame at the surface of water.

To prevent fish from ingesting the cultured seaweed, seines may be hung around the rafts to block fish from entering the area where the trays are located. The mesh size of the purse net can be set according to the specification and size of the fishes in the water area where the seaweed culture float raft frame is located.

The utility model discloses a mesh form plastic sheet supplies the alga body of marine alga such as gracilaria alga to adhere to as the anchorage for the alga body can grow on the marine alga is bred float raft frame, and utilize the buoyancy of float, raft frame etc. to make raft frame float on the surface of water, tray and mesh form plastic sheet submergence are in the water top layer, thereby be applicable to the breed of the marine alga that needs the anchorage such as gracilaria alga in the deep waters, and can make the alga body can live in the water top layer. The seaweed cultivation is carried out in the deep water area, besides the economic benefits of the seaweed cultivation, the seaweed can absorb eutrophication substances (such as nitrogen, phosphorus and the like) in the water body, so that the seaweed cultivation has certain economic and environmental significance for improving water quality, balancing aquatic ecology, beautifying the environment and the like, and can be widely used for biological treatment of cultivation tail water or used as a landscape cultivation facility under the current policy of paying attention to environmental protection.

Drawings

Fig. 1 is a schematic structural diagram of a preferred embodiment 1 of the present invention;

fig. 2 is a schematic structural view of a tray according to a preferred embodiment 1 of the present invention;

fig. 3 is a schematic structural view (top view) of the raft frame in the preferred embodiment 2 of the present invention.

Detailed Description

Example 1

As shown in fig. 1 and 2, the seaweed cultivation buoyant raft frame comprises a raft frame 1, a plurality of trays 2, a plurality of floats 3 and a plurality of weights 6, wherein each float 3 is tied on the raft frame 1, the trays 2 are installed on the raft frame 1, and mesh-shaped plastic sheets 4 are laid at the bottoms of the trays 2. The pendant 6 is detachably connected with the raft frame 1 through a rope 7. A layer of coarse sea sand 5 (or broken stone) is laid on the mesh-shaped plastic sheet 4.

The float 3 can be formed by a floating ball or a foam plastic block.

The pendant 6 can be made of metal blocks, concrete blocks, bottles filled with sand and the like.

The tray 2 is made of plastic. The height of the tray 2 is about 10-20 cm. The shape of the tray can be designed flexibly, such as rectangle, circle, etc., and the shape of the tray 2 in this embodiment is rectangle, and the length and width thereof are about 200 cm and 100 cm respectively.

In this embodiment, the raft frame 1 is formed by connecting a plurality of transverse rods 11 and a plurality of longitudinal rods 12, and the raft frame 1 has a plurality of rectangular spaces; each rectangular space is provided with a tray 2, and the edge of the top opening of the tray 2 is fixedly connected with the corresponding transverse rod 11 or the corresponding longitudinal rod 12 through a connecting rope. The transverse rods 11 and the longitudinal rods 12 can be made of bamboo rods, wood rods or PVC pipes. Above-mentioned raft frame has a plurality of rectangle spaces of arranging according to multirow multiseriate mode, and is corresponding, and each tray 2 is arranged according to the mode of multirow multiseriate (each tray 2 is connected into the piece), and in this embodiment, each tray 2 is arranged according to the mode of two rows of three columns.

The marine alga cultivation raft frame of this embodiment still includes the location anchor 8, and location anchor 8 passes through hawser 9 and is connected with raft frame 1 (9 one end of hawser are connected with raft frame 1, the other end is connected with location anchor 8), through 8 anchors of location anchor in submarine, can fix the position that marine alga was bred and floats raft frame. The localizing anchor 8 can be provided in one or more (e.g., four).

When the seaweed cultivation buoyant raft frame is used, the buoyant raft frame 1 is placed in water, the buoyancy of the floater 3, the buoyant raft frame 1 and the like is utilized to enable the buoyant raft frame 1 to float on the water surface, and the tray 2 and the mesh-shaped plastic sheet 4 are immersed in the water surface layer; the mesh-shaped plastic sheet 4 and the coarse sea sand 5 (or broken stones) are used as attachment bases for attaching alga bodies of seaweeds such as gracilaria alga, so that the alga bodies can grow on the alga culture float raft frame. Through the combination of the weight 6 and the floater 3, the position of the raft frame can be kept stable.

As the algae grows, the depth of the tray 2 and the algae thereon immersed in water is usually adjusted according to the length of the algae. When the depth of the tray 2 and the algae thereon submerged is required to be increased, the number of the pendants 6 can be increased or the number of the floats 3 can be reduced. When it is desired to reduce the depth of immersion of the tray 2 and the algal bodies thereon, this can be achieved by reducing the number of weights 6 or increasing the number of floats 2.

Example 2

As shown in fig. 3, in this embodiment, the raft 1 is formed by connecting two longitudinal floats 13 and a plurality of transverse rods 11, the plurality of transverse rods 11 are sequentially arranged along the longitudinal direction of the longitudinal floats 13, both ends of the transverse rods 11 are respectively connected to the two longitudinal floats 13, and the raft 1 has a plurality of rectangular spaces arranged in a row. A tray 2 is arranged in each rectangular space on the raft frame 1, a plurality of (such as three or four) lifting ropes are arranged between the edge of the top opening of the tray 2 and the raft frame 1, the lower ends of the lifting ropes are connected with the edge of the top opening of the tray, and the upper ends of the lifting ropes are connected with corresponding longitudinal floating ropes or transverse rods. In this arrangement, the weight is typically attached to the tray to better hold the tray in the desired position. The trays are arranged in a row. In addition, the length of the lifting rope can be adjusted as required, and the depth of the adjusting tray immersed in water can be adjusted.

The rest of the structure of this embodiment can be configured as described in embodiment 1.

Claims

1. The utility model provides a superficial raft frame is bred to marine alga, its characterized in that includes raft frame, at least one tray, a plurality of floats and at least one weight, and each float knot is on raft frame, and the tray is installed on raft frame, and mesh form plastic sheet has been laid to the tray bottom, and the weight passes through the rope and can dismantle with raft frame or tray and be connected.

2. The algal cultivation raft frame of claim 1, wherein: and a layer of coarse sea sand or broken stone is laid on the mesh-shaped plastic sheet.

3. The algal cultivation raft frame of claim 1, wherein: the tray is made of plastic.

4. The algal cultivation raft frame of claim 1, wherein: the seaweed cultivation buoyant raft frame comprises a plurality of trays which are arranged in a plurality of rows and columns.

5. The algal cultivation raft frame of claim 1, wherein: the seaweed cultivation buoyant raft frame comprises a plurality of trays which are arranged in a row.

6. The algal cultivation raft frame of claim 1, wherein: the raft frame is formed by connecting a plurality of transverse rods and a plurality of longitudinal rods, and the raft frame is provided with at least one rectangular space; each rectangular space is provided with a tray, and the edge of the top opening of each tray is fixedly connected with the corresponding transverse rod or the corresponding longitudinal rod through a connecting rope.

7. The algal cultivation raft frame of claim 6, wherein: the transverse rods and the longitudinal rods are made of bamboo poles, wood poles or PVC pipes.

8. The algal cultivation raft frame of claim 1, wherein: the raft frame is formed by connecting two longitudinal floating ropes and a plurality of transverse rods, the plurality of transverse rods are sequentially arranged along the length direction of the longitudinal floating ropes, two ends of each transverse rod are respectively connected with the two longitudinal floating ropes, and the raft frame is provided with a plurality of rectangular spaces which are arranged in a line; each rectangular space is provided with a tray, a plurality of lifting ropes are arranged between the edge of the top opening of the tray and the raft frame, the lower ends of the lifting ropes are connected with the edge of the top opening of the tray, and the upper ends of the lifting ropes are connected with the corresponding longitudinal floating ropes or the corresponding transverse rods.

9. An algal cultivation raft frame according to any one of claims 1-8, wherein: the seaweed breeding float raft frame further comprises a positioning anchor, and the positioning anchor is connected with the float raft frame through a mooring rope.