Cage type algal reef transfer device and transfer method

Abstract

The invention discloses a cage type algal reef transfer device and method, the transfer device comprises a bracket, a transfer cage, a water tank and a water pump, the bracket is provided with a reef body limiting groove, and the bottom of the limiting groove is provided with a draining part; the transfer cage is of a layered frame structure, and a bracket can be fixed to each layer of the transfer cage. The water tank is provided with a water pump, and a water inlet and a water outlet of the water pump are located at diagonal positions of the water tank. Nitrogen and phosphorus nutritive salts are added into the water body 3 days before transportation, illumination is adjusted, and auxiliary means such as shading by a sunshade net or cooling by an ice bottle can be adopted according to actual transportation conditions during transportation. Compared with a traditional transportation mode, the large-scale seedling-attached reef body transportation method has the advantages that the transportation efficiency is improved, the damage rate of epiphytic seaweed on the reef body in the transportation process is reduced, the limitation of the transportation time is broken through, the long-distance transportation requirement can be met, and large-scale seaweed resource restoration engineering development is facilitated.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of reef body transportation with artificial seedlings, and in particular to a cage type algal reef transportation device and transportation method. BACKGROUND

[0002] With the development of artificial restoration of seaweed fields and seaweed resource conservation technology, seaweed resource restoration technology of inoculating seaweed larvae on algal reefs and using them for seaweed field restoration or in-situ proliferation has gradually been recognized. After artificial inoculation of seaweed larvae on algal reefs, they need to be transported to the target sea area for deployment, but the traditional transportation method is inefficient, and various unfavorable factors during transportation can easily cause damage to the reef body seedlings, thereby indirectly affecting the restoration effect of the seaweed field. First, the seaweed attached to the reef body by artificial inoculation is still in the juvenile stage, and the algal body is relatively fragile. During transportation, the reef body is stacked and squeezed, which can easily cause the algal body to break or the seedlings to be detached. In order to avoid damage to the algal body caused by transportation, the traditional transportation method uses a single layer transportation method, but the transportation efficiency is low, which is not conducive to large-scale reef body transportation.

[0003] Secondly, dry exposure during transportation can also cause damage to the algal body, and excessive dry exposure can cause the algal body to die. The traditional method of transporting seedling-attached reefs has relatively strict time limits, so it is only used for short-distance transportation and cannot meet the long-distance batch transportation demand.

[0004] Finally, other factors during the transportation of seedling-attached reefs. The degree of algal growth, temperature, strong light and other factors also affect the efficiency of long-distance transportation. SUMMARY

[0005] In order to overcome the above-mentioned problems in the prior art, the present application provides a cage type algal reef transportation device and transportation method.

[0006] The technical scheme adopted by the present application to solve its technical problems is: a cage type algal reef transportation device, comprising a carrier, a transfer cage, a water tank, and a water pump, the carrier is provided with a reef body limiting groove, and the bottom of the limiting groove is provided with a draining part; the transfer cage is a layer type frame structure, and one carrier is embedded and fixed in each layer of the transfer cage; the transfer cage is placed in the water tank, the water tank is provided with a water pump at the bottom, the water inlet of the water pump is located at the bottom of the water tank, and the water outlet is located at the opposite corner position of the water inlet.

[0007] The cage type algal reef transportation device described above further comprises a sunshade net, which covers the water tank.

[0008] The cage type algal reef transportation device described above, the top of the four surrounding columns of the transfer cage is provided with a lifting hole, and the four surrounding columns of the transfer cage are provided with a bottle fixing position.

[0009] The above-mentioned cage-type algal reef transfer device has a cuboid layered frame structure for the transfer cage and a square structure for the bracket. The bracket is placed into the transfer cage through a slide and fixed in the transfer cage by a bolt locking device.

[0010] In the aforementioned cage-type algal reef transfer device, both the transfer cage and the bracket are made of high-density polyethylene.

[0011] The above-mentioned cage-type algal reef transfer device has a hollow drainage section at the bottom of the limiting groove, and a bottom frame for supporting the reef body is provided at the bottom edge.

[0012] The aforementioned cage-type algal reef transfer device has a rubber pad on its bottom frame to prevent the reef from shaking violently.

[0013] In the aforementioned cage-type algal reef transfer device, the top bracket maintains a certain distance from the top of the transfer cage, and the bottom bracket maintains a certain distance from the bottom of the transfer cage.

[0014] A transfer method for a cage-type algal reef transfer device, based on the cage-type algal reef transfer device described above, specifically includes the following steps: Step 1: Three days before the transfer, adjust the lighting in the temporary rearing workshop of the seedling reef to 3000-5000 lx, and add 60 mg NO3 per cubic meter of water. - 3mg active phosphate; Step 2: During the transfer, first place the water tank in the transport space, place several transfer cages in the water tank, inject sand-filtered seawater into the water tank, and as the water level rises, place the brackets containing attached reef bodies into the transfer cages layer by layer and fix the brackets. Step 3: Stop filling the water tank when the water level is 10cm higher than the top bracket; the attached reef should be kept in seawater at all times during transportation; Step 4: The water tank is equipped with a water pump to circulate the water in the tank at regular intervals. The water pump inlet is located at the bottom of the water tank, and the outlet is located diagonally opposite the inlet. The inlet and outlet should avoid the bracket to prevent excessive water flow from causing algae to fall off. During transportation, the water pump should be turned on for 10-20 minutes every 1-2 hours, and the circulating water volume should be no less than 50% of the water volume in the tank. Step 5: After arriving at the transfer point, lift the transfer cage as a whole or remove the bracket layer by layer from top to bottom as water is released from the water tank. Try to minimize the drying time of the attached reef during the loading and unloading process. If the loading and unloading time is too long, spray the surface of the reef with a spray bottle filled with seawater to prevent the algae from drying out too much.

[0015] The transport method of the cage type algal reef transport device, if the transport condition is open type or no canopy state in step 3, a single layer sunshade net is covered above the canvas water tank during transport; the transport temperature is measured and the transport duration is estimated, when the transport temperature is higher than 30 DEG C or the transport duration is more than 6h, the ice bottles should be fixed on the columns around the transfer cage in advance, and the ice bottles are replaced in time during transport.

[0016] The beneficial effect of the present application is that the present application provides a long-distance, batch reef with seedling transport method, which meets the engineering transport demand, effectively utilizes the transport space compared with the traditional transport method, and can improve the transport efficiency by 5 times under the same transport capacity condition, and the transport time can be prolonged by 6-10 times.

[0017] The present application effectively reduces the damage rate of epiphytic seaweed on the reef during transport, which is beneficial to improve the seaweed resource repair effect.

[0018] The method of the present application adopts a simple canvas water tank, which is easy to install and disassemble; the transfer cage can be hoisted integrally or the bracket can be disassembled layer by layer. Compared with the traditional transport method, the present application has obvious convenience and efficiency, which is beneficial to improve the transport efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a schematic diagram of the transport device of the present application; Figure 2 is a schematic diagram of the bracket of the present application; Figure 3 is a schematic diagram of the transfer cage of the present application; Figure 4 is a schematic diagram of the present application Figure 3 is an enlarged view of part A of the present application; Figure 5 is a schematic diagram of the installation of the bracket and the transfer cage of the present application; Figure 6 is a schematic diagram of the bracket of the present application containing disc-shaped reef; Figure 7 is a schematic diagram of the bracket of the present application containing fan-shaped reef.

[0020] 1, bracket, 1-1, limiting groove, 1-2, bottom frame, 2, transfer cage, 2-1, slide, 2-2, ice bottle fixing position, 2-3, hoisting hole, 2-4, locking structure, 2-4-1, fixing bolt, 2-4-2, fixed plate, 3, canvas water tank, 4, circulating pump. DETAILED DESCRIPTION

[0021] In order to enable those skilled in the art to better understand the technical solutions of the present application, the present application will be described in detail below in combination with the drawings and specific embodiments.

[0022] As Figure 1As shown in the figure, this embodiment discloses a cage-type algal reef transfer device. The main structure includes a bracket 1 and a transfer cage 2. When in use, it needs to be equipped with a canvas water tank 3, a circulation pump 4, a shade net, etc.

[0023] High-density polyethylene is the preferred material for brackets and transfer cages, but stainless steel can also be used.

[0024] The bracket is a square structure as a whole. Figure 2 As shown, it consists of 5×5 retaining slots 1-1. Each retaining slot measures 20cm×20cm×5cm and is used to store the reef. Its hollow bottom facilitates drainage of seawater during the overall hoisting and transfer cage operation. A 3cm wide bottom frame 1-2 supports the reef within the retaining slot, and a rubber pad covers the bottom frame to prevent violent shaking of the reef within the slot. The retaining slots can support reefs with a diameter of 15-20cm, and each bracket can hold up to 25 reefs. A schematic diagram of the bracket after the reefs are placed is shown below. Figures 6-7 As shown.

[0025] The transfer cage is a cuboid layered frame structure, such as... Figure 3 As shown, there are 5 layers in total. Each layer has 2-1 slides that can accommodate one bracket. The slide openings are equipped with locking devices to secure the brackets. The locking devices are as follows: Figure 4 As shown, the locking device includes a fixing plate 2-4-2 and fixing bolts 2-4-1. The fixing plate is installed on the column and has fixing holes. Corresponding screw holes are provided at the slide opening. After the bracket is placed into the transfer cage, the fixing bolts are tightened to secure the bracket and prevent the pallet from sliding out during transportation or hoisting. The layer spacing is 25cm. The bottom bracket is 10cm from the bottom surface, and the top bracket is 10cm from the top of the transfer cage. The columns around the transfer cage are equipped with ice bottle fixing positions 2-2, which can fix several ice bottles as needed. The top of the column is equipped with a hoisting hole 2-3, which can be used for hoisting the entire transfer cage. The bracket and the transfer cage are installed as follows. Figure 5 As shown; the bottom of the column is covered with a layer of rubber padding to prevent damage to the canvas water tank during transportation. The transfer cage has a load-bearing capacity of not less than 800 kg.

[0026] Canvas Water Tank: A simple, detachable canvas water tank with a frame made of spliced ​​galvanized pipe supports. PVC fabric is fixed around the tank frame. Its advantages include lightweight construction, ease of assembly and disassembly, and convenient transportation.

[0027] Circulation pump: A lithium-ion wireless water pump with a head of not less than 10m, used for circulating water in the tank during transportation. The inlet of the circulation pump should be located at the bottom of the tank, and the outlet should be located diagonally opposite the inlet. The inlet and outlet should avoid the bracket to prevent excessive water flow from causing algae to fall off.

[0028] Shade net: Shade nets with a shading rate of over 80% should be selected. When using them, they should be covered over the canvas water tank to block strong sunlight during transportation.

[0029] Based on the transfer device disclosed in this embodiment, the following two embodiments of usage methods are provided.

[0030] Example 1 (1) The canvas water tank should be customized according to the storage area of ​​the transfer vehicle or ship. The volume of the canvas water tank should be able to accommodate at least two transfer cages. The water height of the canvas water tank should be 20cm higher than the top support reef of the transfer cage.

[0031] (2) Three days before the transfer, adjust the light intensity of the temporary rearing workshop on the attached reef to 5000 lx and add 60 mg NO3 per cubic meter of water. - 3mg active phosphate.

[0032] (3) Before the transfer, a canvas water tank is pre-arranged on the transfer vehicle or ship, and then the transfer cage is placed in the water tank. The canvas water tank is filled with sand-filtered seawater with a depth of 10cm.

[0033] (4) Place the attached reef body into the bracket limiting groove, place the bracket full of reef body into the transfer cage and fix it. The brackets are placed in order from the bottom to the top. As the bracket is embedded into the transfer cage, sand-filtered seawater is injected into the canvas water tank. The water level of the injected seawater should just cover the reef body in the tray.

[0034] (4) When the temperature is higher than 30℃ or the transit time exceeds 6 hours, ice bottles should be fixed on the pillars around the transit cage in advance. After all the brackets are fixed in the transit cage, the water level in the canvas water tank should be 20cm higher than the top bracket reef body. During the transportation, the attached reef body should always be kept in the seawater.

[0035] (5) When transporting water tanks in the open air, cover them with a single layer of shade netting to prevent direct sunlight.

[0036] (6) During the transport, the water in the tank should be circulated with a water pump for 10-20 minutes every 1-2 hours to balance the water temperature and prevent local overheating. Check the ice bottle during the transport and replace it in time.

[0037] (7) Upon arrival at the destination, attach a hoisting rope to the top of the transfer cage and lift it out of the canvas water tank. If the loading and unloading time is too long, spray the surface of the reef with a spray bottle filled with seawater to prevent the algae from drying out too much. After the transfer cage is removed from the canvas water tank, water can be drained and the water tank can be disassembled and stored.

[0038] Example 2 (1) Three days before the transfer, adjust the light intensity of the temporary rearing workshop of the seedling reef to 3000 lx and add 60 mg NO3 per cubic meter of water. - 3mg of active phosphate.

[0039] (2) Before the transfer, a canvas water tank is pre-arranged on the transfer vehicle or boat. Three transfer cages are placed in each water tank. After the transfer cages are placed in the water tank, sand-filtered seawater with a depth of 10cm is injected.

[0040] (4) Place the attached reef body into the bracket limiting groove, place the bracket full of reef body into the transfer cage and fix it. The brackets are placed in order from the bottom to the top. As the bracket is embedded into the transfer cage, sand-filtered seawater is injected into the canvas water tank. The water level of the injected seawater should just cover the reef body in the tray.

[0041] (4) Measure the transfer temperature and estimate the transfer time. When the temperature is higher than 30℃ or the transfer time exceeds 6 hours, fix ice bottles on the pillars around the transfer cage in advance. After all the brackets are fixed in the transfer cage, the water level in the canvas water tank should be 20cm higher than the top bracket reef. During the transportation, the attached reef should always be kept in the seawater.

[0042] (5) During the transport, the water in the tank should be circulated with a water pump for 10-20 minutes every 1-2 hours to balance the water temperature and prevent local overheating. Check the ice bottle during the transport and replace it in time.

[0043] (6) Upon arrival at the destination, use a water pump to extract seawater from the canvas tank in batches. When the top bracket of the transfer cage just emerges from the water, stop pumping, lift the bracket out of the transfer cage, and remove the attached reef from the bracket's retaining groove, placing it in the seawater for temporary storage. Restart the water pump and pump until the lower bracket emerges from the water, then stop, remove the bracket, and remove the attached reef, placing it in the seawater. Repeat this process until all brackets are removed.

[0044] (7) After all the brackets in the transfer cage are removed, drain the remaining seawater in the canvas water tank and close the canvas water tank.

[0045] This invention enables the stacking of reefs within a limited transport space using brackets and transfer cages, avoiding damage to algae on the reefs caused by friction and compression between the reefs; the temporary storage method of immersing the transfer cages in water tanks during transport prevents the algae from drying out during transport, thereby reducing transport losses; the invention also optimizes the supporting transport conditions, reduces the stress of adverse factors on the algae seedlings on the reefs during transport, and improves transport efficiency.

[0046] This invention makes full use of transport space, preventing algae damage during transport due to reef stacking and improving transport efficiency. It employs a simple water tank for reef transfer, avoiding damage caused by algae drying during transport and overcoming the limitations of traditional transfer methods for long-distance transport. Combined with pretreatment, ice pack cooling, water pump circulation, and shading from strong light, it mitigates the impact of adverse factors during reef transport, helping to reduce the damage rate of algae seedlings on the reef and extend transport time.

[0047] The above embodiments are merely exemplary embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art can make various modifications or equivalent substitutions to the present invention within its scope and spirit, and such modifications or equivalent substitutions should also be considered to fall within the scope of protection of the present invention.

Claims

1. A cage-type algal reef transfer device, characterized by, The device comprises a bracket, a transfer cage, a water tank and a water pump, the bracket is provided with a reef body limiting groove, the bottom of the limiting groove is provided with a draining part; the transfer cage is a layer type frame structure, one bracket is embedded and fixed in each layer of the transfer cage; the transfer cage is placed in the water tank, the water tank is provided with a water pump at the bottom, the water inlet of the water pump is arranged at the bottom of the water tank, and the water outlet is arranged at the diagonal position of the water inlet.

2. A cage-algal reef transport device according to claim 1, characterized in that The device further comprises a sunshade net, which is covered on the water tank.

3. The cage-algal reef transfer device of claim 1, wherein, The top of the column around the transfer cage is provided with a lifting hole, the column around the transfer cage is provided with an ice bottle fixing position, each layer is provided with a slide and a locking device.

4. The caged algal reef transport apparatus of claim 1, wherein, The transfer cage is a square layer type frame structure, the bracket is a square structure, the bracket is put into the transfer cage through the slide and is fixed in the transfer cage through the bolt locking device.

5. The caged algal reef transport apparatus of claim 1, wherein, The materials of the transfer cage and the bracket are high-density polyethylene or stainless steel.

6. A cage-algal reef transport device according to claim 1, wherein, The bottom of the limiting groove is a hollow draining part, and the bottom edge is provided with a bottom frame for supporting the reef body.

7. A cage-algal reef transport device according to claim 6, wherein, The bottom frame is covered with a rubber pad for preventing the reef body from shaking violently.

8. The caged algal reef transport apparatus of claim 1, wherein, The bracket of the top layer keeps a certain distance from the top of the transfer cage, and the bracket of the bottom layer keeps a certain distance from the bottom of the transfer cage.

9. A method for transporting a cage-type algal reef, the method comprising: providing a cage-type algal reef; and transporting the cage-type algal reef to a desired location. Based on the cage type algal reef transfer device according to any one of claims 1-8, specifically comprising the following steps: Step 1, 3 days before transport, the light in the nursery was adjusted to 3000-5000 lx and 60 mg NO3 per cubic meter of water body was added, together with 3 mg active phosphate - ; Step 2: During the transfer, the water tank is arranged on the transportation space, a plurality of transfer cages are arranged in the water tank, sand filtered seawater is injected into the water tank, the bracket with the attached seed reef body is put into the transfer cage layer by layer as the water level rises, and the bracket is fixed; Step 3: When the water surface height in the water tank is higher than the top bracket by 10 cm, the water injection of the water tank is stopped; the attached seed reef body should be kept in seawater during transportation; Step 4: The water tank is provided with a water pump to circulate the water body of the water tank at regular time, the water inlet of the water pump is arranged at the bottom of the water tank, and the water outlet is arranged at the diagonal position of the water inlet; the water inlet and the water outlet avoid the bracket to prevent the water flow from being too large to cause the algae to fall off; during the transfer, the water pump is opened for 10-20 minutes every 1-2 hours, and the circulating water body is not less than 50% of the water body of the water tank; Step 5: After arriving at the transfer location, the transfer cage is lifted out as a whole or the bracket is taken out layer by layer from top to bottom after the water tank is drained, the dry exposure time of the attached seed reef body is shortened as much as possible during the loading and unloading process, and if the loading and unloading time is too long, a spray bottle filled with seawater can be used to spray the surface of the reef body to prevent the algae from being exposed to dryness.

10. The method of claim 9, wherein the method further comprises: In step 3, if the transportation condition is open type or without canopy, a single layer of sunshade net is covered on the canvas water tank during the transfer; the transfer temperature is measured and the transfer time is estimated, when the transfer temperature is higher than 30℃ or the transfer time is more than 6h, the ice bottles are fixed on the columns around the transfer cage in advance, and the ice bottles are replaced in time according to the situation during the transfer.

Images