CN218709643U

CN218709643U - Offshore multifunctional three-dimensional ecological restoration device

Info

Publication number: CN218709643U
Application number: CN202222883109.7U
Authority: CN
Inventors: 黄顺深; 李承柱; 伍晓洪; 张向营
Original assignee: Cccc Guangzhou Water Transport Engineering Design & Research Institute Co ltd; CCCC Guangzhou Dredging Co Ltd.
Current assignee: Cccc Guangzhou Water Transport Engineering Design & Research Institute Co ltd; CCCC Guangzhou Dredging Co Ltd.
Priority date: 2022-10-31
Filing date: 2022-10-31
Publication date: 2023-03-24
Anticipated expiration: 2032-10-31

Abstract

The utility model discloses an offshore multifunctional three-dimensional ecological restoration device, which comprises an ecological frame, wherein the ecological frame is a seaweed bed frame, a strain frame and a biomembrane frame from top to bottom; the seaweed bed frame, the strain frame and the biological membrane frame are fixedly connected with each other; the inner edge of the seaweed bed frame is fixedly provided with a seaweed planting bed, the inner edge of the strain frame is used for fixing a strain bag, and a biological membrane system is fixed in the biological membrane frame. The utility model discloses be fit for the offshore area that receives the pollution, have the device of sea grass bed repair function and sea water purification effect, be favorable to the improvement of the hyperplasia of coastal waters marine organism and coastal waters seabed bottom matter simultaneously. The device has the advantages of simple and easily-obtained required materials, long-acting sustainable offshore ecological restoration, promotion of balance of the offshore marine ecosystem and contribution to restoration and protection of the offshore marine ecosystem.

Description

Offshore multifunctional three-dimensional ecological restoration device

Technical Field

The utility model relates to an coastal waters environment restores the field, specifically is a multi-functional three-dimensional ecological prosthetic devices of coastal waters.

Background

Offshore is a key area of land and ocean interaction, has abundant natural resources and various ecosystems, is also an area greatly influenced by human activities, and has sensitive and fragile ecological environment. With the rapid development of the coastal urban economic society, human activities gradually extend from the land area range to the sea area, and the coastal sea area is increasingly seriously affected by activities of land source pollution emission, reclamation cultivation, port and wharf construction, foreign species invasion and the like. A large amount of inorganic pollutants such as nitrogen, phosphorus and the like are discharged into the offshore area, so that the eutrophication phenomenon appears in coastal sea areas, the dissolved oxygen of a water body is reduced, the transparency of seawater is reduced, the water body smells, even red tide appears, coastal water ecological systems are seriously damaged, the variety of species is reduced, and a lot of sea area seaweed beds are degraded and even desertified.

The seaweed bed, the coral reef and the mangrove forest are three typical marine ecosystems in the offshore area. The seaweed bed ecosystem has high productivity and rich humus, has the functions of purifying seawater quality and stabilizing seabed bottom and coast, and provides food and places for growth, propagation and inhabitation of various offshore marine organisms. At present, the seaweed bed recovery technology adopted in China mainly transplants large-scale seaweed to form a certain scale and promote the construction of an offshore ecosystem, but the water quality of a seaweed bed recovery area is always muddy, the photosynthesis of the transplanted seaweed is influenced, and the seaweed bed recovery is not facilitated. In the implementation process of transplanting, cultivating and implementing the seaweed, the seaweed is often easily washed by sea waves, a large amount of suspended sand appears in water flow due to large wind waves, the suspended sand covers the seaweed burying and repairing areas, the photosynthesis of the seaweed is limited, the survival rate is reduced, and the repairing effect is seriously influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a multi-functional three-dimensional ecological prosthetic devices of coastal waters to solve the problem that proposes in the above-mentioned background art.

In order to solve the technical problem, the utility model provides a following technical scheme: comprises an ecological frame, wherein the ecological frame is a seaweed bed frame, a strain frame and a biological membrane frame from top to bottom;

the seaweed bed frame, the strain frame and the biological membrane frame are fixedly connected with each other;

the inner edge of the seaweed bed frame is fixedly provided with a seaweed planting bed, the inner edge of the strain frame is used for fixing a strain bag, and a biological membrane system is fixed in the biological membrane frame.

Preferably, the sea grass planting bed comprises a sand and soil fixing plate, the sand and soil fixing plate is formed by surrounding the sea grass bed frame, and a planting frame lining is laid at the bottom of the sand and soil fixing plate and used for bearing planting sand and soil arranged in the sand and soil fixing plate.

Preferably, the upper surface of the planting sandy soil is covered with a seaweed fixing net, the seaweed fixing net body is warp-knitted eyelet fabric, supporting rods penetrate through and are fixed on the warp-knitted eyelet fabric, the supporting rods are arranged at intervals along the transverse direction and the longitudinal direction to form a grid shape, and the end parts of the supporting rods are fixed on a seaweed bed frame.

Preferably, the strain bag comprises an outer layer bag, and the outer layer bag is filled with the ceramsite and the strain bag.

Preferably, the bottom surface of the strain frame is fixedly provided with a pad net for supporting the strain bag.

Preferably, the biological membrane system comprises biological ropes which are longitudinally distributed in a space surrounded by the biological membrane frame at intervals, the upper ends of the biological ropes are connected to the bottom of the strain frame, and the lower ends of the biological ropes are straightened and fixed to the bottom of the biological membrane frame.

Preferably, the installation interval of the bio-rope is 30cm.

Preferably, the biological membrane frame also comprises a balancing weight which is connected to the bottom of the biological membrane frame through a traction rope.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses be fit for the offshore area that receives the pollution, have the device of sea grass bed repair function and sea water purification effect, be favorable to the improvement of coastal waters marine organism's hyperplasia and coastal waters seabed sediment simultaneously. The device has the advantages of simple and easily-obtained required materials, long-acting sustainable offshore ecological restoration, promotion of balance of the offshore marine ecosystem and contribution to restoration and protection of the offshore marine ecosystem.

Specifically, the utility model discloses a device main part is longitudinal frame structure, the middle part sets up the filler, better anti-wave effect has, application range is wide, can be in order to use the device a plurality of together, form miniature marine ranch ecosystem, effectively prevent the influence that the sea wall suspended solid caused the sea weeds, provide sufficient illumination for the sea weeds, promote the photosynthesis of sea weeds, be favorable to the growth and the reproduction of sea weeds and the scattering of sea weeds seed, biofilm system is favorable to promoting water purification, and provide habitat and shelter place for the growth and the reproduction of small-size fish, be favorable to the proliferation of small-size fish, the engineering membrane system bacterial of adaptation sea water that the bacterial package mainly adopted, for the biological continuous supply probiotics, be favorable to forming the biofilm of adaptation sea water environment fast; the seaweed planting bed can spread seaweed seeds to nearby sea areas in the growing process, and the device is favorable for promoting the construction of the seaweed bed in an ecological system of the nearby sea areas and the recovery of a marine ranch; the seaweed-strain-biofilm system is organically integrated, so that the polluted seawater in the offshore sea area can be purified, the biological diversity of the offshore sea area can be increased, and the stability of an ecological system in the offshore sea area can be promoted.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic view of the ecological frame structure of the present invention;

fig. 3 is a schematic view of the installation of the mat structure.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 and 2, the ecological frame 1 mainly includes a seaweed bed frame 11, a strain frame 12, and a biofilm frame 13, and mainly fixes each part of the device, and respectively connects and fixes the seaweed planting bed 2, the strain bag 3, and the biofilm system, thereby preventing the device from being damaged by seawater.

The top of the ecological frame 1 is provided with a buoy 5, and the buoy 5 is fixed on the top of the ecological frame through an extension frame 51.

The ecological frame 1 is manufactured by welding and binding steel bars subjected to corrosion prevention treatment, the diameter of the steel bars is 10mm, the surface of the steel bars is coated with epoxy resin, and the thickness of the coating is 0.15-0.30 mm. Aiming at the water quality characteristics of seawater, the epoxy resin coating on the surface of the steel bar of the ecological frame 1 is beneficial to corrosion prevention, the service life of the ecological frame is prolonged, the chemical property of the epoxy resin is stable, and secondary pollution to the seawater quality cannot be caused.

A comprehensive fixing frame 121 is welded in the seaweed bed frame 11, and the comprehensive fixing frame 121 consists of 4 steel bars and is used for fixing the top of the biomembrane system to provide support. Each reinforcing steel bar of the comprehensive fixing frame 121 is welded with 4 fixing rings for fixing the biological rope 41 to prevent the biological rope from being washed and moved by seawater;

the sea grass planting bed 2 mainly comprises a planting sand soil fixing plate 21, sea grass 22, a sea grass fixing net 23, planting sand soil 24 and a planting frame lining. Wherein, the planting sand fixing plate 21 material is timber, and timber adopts pine, carries out environmental protection anticorrosive treatment on the surface. The planting sand fixing plate 21 is laid along the periphery and the bottom of the inner side of the seaweed bed frame 11, and before laying, a layer of planting frame lining is laid, so that the planting frame lining is fixed between the seaweed bed frame 11 and the planting sand fixing plate 21. The liner of the planting frame is made of polypropylene filter cloth, the filtering precision is 3-5 microns, and the loss of the bottom planting sandy soil 24 can be effectively prevented.

The planting sandy soil 24 is formed by mixing fine sand and nutrient soil as main components, and the laying thickness is 10cm; the sea grass fixing net 23 covered on the surface of the planted sandy soil consists of a thin bamboo pole and a warp-knitted mesh fabric, the thin bamboo pole is fixed on the sea grass bed frame 11 by a binding belt and plays a role in supporting and fixing, and the planted sea grass 22 plants are bound on the thin bamboo pole by a glass rope to prevent being washed away by seawater, so that the growth and the propagation of the sea grass 22 are facilitated;

the strain bag 3 consists of a composite strain bag and a cushion net 32, wherein the composite strain bag consists of an outer layer bag, ceramic particles and a composite strain bag: the outer bag is a nylon mesh bag, and the mesh specification is 40 meshes; the size of the ceramsite is phi 5-8mm, and the specific surface area is large; the composite strain bag is mainly granules formed by mixing nitrobacteria, denitrifying bacteria, bacillus, pseudomonas, activated enzyme, polysaccharide and other nutrients, and is wrapped by a double-layer high-density sieve cloth;

the pad net 32 is a stainless steel woven net, is fixed at the bottom in the strain frame 12 by a binding belt, has an aperture of 15mm, and is used for supporting the composite strain bag.

The biological rope 41 in the biological membrane system has a diameter of 80mm, a length of 1.5 m and an effective surface area of more than 200m ² M, the installation spacing distance is 30cm; the suspension rope 42 is made of nylon fiber, is straightened and fixed at the bottom of the biological membrane frame 13, has the diameter of 12mm, long service life, high strength, corrosion resistance and stable chemical property, and cannot cause secondary pollution. The biological rope 41 is an immersed suspension type biological carrier filling material, and is formed into a radial structure by countless annular fibers, and the surface area is large, so that the concentration of attached microorganisms can reach more than 15000 mg/L. The microorganisms in the composite strain bag slowly attach to the biological rope 41 along with the flow of the sea waves, so as to promote the rapid formation of the biological film on the biological rope 41, and meanwhile, the microorganisms in the composite strain bag slowly attach to the biological rope 41Facilitates the adhesion of the same species of the primary strain in the seawater to the biological membrane to form a semi-natural biological membrane, and is beneficial to purifying pollutants in the seawater. Meanwhile, the biological ropes 41 in the biological membrane system have a shielding effect on small fishes and shrimps, and the biological membranes on the surface can provide nutrient substances for the small fishes and shrimps and promote the reproduction and growth of the small fishes and shrimps; a stable micro-ecosystem can be formed among the biomembrane, the seaweed bed and the strain bag, which is beneficial to the recovery of the seaweed bed, the purification of seawater and the proliferation of fishes in the marine ecosystem, the recovery of polluted offshore sea areas and the stability of the offshore marine ecosystem.

The balancing weight 6 is connected with the biomembrane frame 13 at the bottom of the ecological frame through a traction rope 61, the balancing weight is made of C30 reinforced concrete, and the weight of each balancing weight is 50kg. The balancing weight 6 is used for ecological frame's fixed action on the one hand, can prevent that ecological frame from being washed away by the sea water, and on the other hand, can promote ecological frame to carry out reasonable swing. The ecological frame reasonably swings, so that on one hand, the contact efficiency of the biomembrane on the biological rope 41 in the system and water is improved, and the removal rate of seawater pollutants is improved; on the other hand, the method can promote the spreading of the seaweed 22 seeds and is beneficial to promoting the formation of the sandy seabed seaweed bed in the peripheral sea area.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a multi-functional three-dimensional ecological prosthetic devices of coastal waters which characterized in that: comprises an ecological frame, wherein the ecological frame is a seaweed bed frame, a strain frame and a biomembrane frame from top to bottom;

2. The offshore multifunctional stereoscopic ecological restoration device according to claim 1, wherein: the seaweed planting bed comprises a sand and soil fixing plate, the sand and soil fixing plate is formed by surrounding a seaweed bed framework, and a planting frame lining is laid at the bottom of the sand and soil fixing plate and used for bearing planting sand and soil arranged in the sand and soil fixing plate.

3. The offshore multifunctional stereoscopic ecological restoration device according to claim 2, wherein: the upper surface of planting sand covers there is the sea grass fixed network, and sea grass fixed network body is warp knitting eyelet fabric, wears to establish and is fixed with the bracing piece on warp knitting eyelet fabric, and the bracing piece is laid along horizontal and vertical interval, forms latticedly, and the tip of bracing piece is fixed on sea grass bed frame.

4. The offshore multifunctional three-dimensional ecological restoration device according to claim 1, wherein: the strain bag comprises an outer layer bag, and the outer layer bag is filled with ceramsite and a strain bag.

5. The offshore multifunctional stereoscopic ecological restoration device according to claim 4, wherein: the bottom surface of the strain frame is fixedly provided with a pad net for supporting the strain bag.

6. The offshore multifunctional three-dimensional ecological restoration device according to claim 5, wherein: the biomembrane system comprises biological ropes which are longitudinally distributed in a space surrounded by the biomembrane frame at intervals, the upper ends of the biological ropes are connected with the bottom of the strain frame, and the lower ends of the biological ropes are straightened and fixed at the bottom of the biomembrane frame.

7. The offshore multifunctional three-dimensional ecological restoration device according to claim 6, wherein: the installation interval of the biological ropes is 30cm.

8. The offshore multifunctional three-dimensional ecological restoration device according to claim 1, wherein: the biological membrane frame is characterized by further comprising a balancing weight, and the balancing weight is connected to the bottom of the biological membrane frame through a traction rope.

9. The offshore multifunctional three-dimensional ecological restoration device according to claim 1, wherein: still include the flotation pontoon, the bottom fixedly connected with of flotation pontoon extends the frame, extends frame fixed mounting at the top of sea grass bed frame.