CN113349132B

CN113349132B - Net changing method for aquaculture net

Info

Publication number: CN113349132B
Application number: CN202110768996.0A
Authority: CN
Inventors: 李朝晖
Original assignee: Yantai Ruihui Marine Technology Co ltd
Current assignee: Yantai Ruihui Marine Technology Co ltd
Priority date: 2021-07-07
Filing date: 2021-07-07
Publication date: 2023-02-03
Anticipated expiration: 2041-07-07
Also published as: CN113349132A

Abstract

The invention discloses a net changing method for a culture net, which comprises the following steps: 1) Preparing a new culture net and transporting the new culture net to the net cage of the old culture net; 2) Pulling out the old culture net from the water by external force and laying a new culture net in the net cage at the same time; 3) When one side of the top of the old culture net and the bottom of the whole old culture net are both positioned above the water surface, stopping lifting the old culture net, and turning the marine products in the old culture net into the new culture net; 4) Continuously netting the old aquaculture net and laying the new aquaculture net through external force until the old aquaculture net is completely separated from the water surface and fixing the new aquaculture net on the net cage; 5) The old breeding net is subjected to the operation of removing parasites of the old breeding net in a mode of spraying acid liquor, neutralizing with alkali liquor, or carrying out oxidation-reduction treatment, or disinfecting and killing with disinfectant; in the step 2), cleaning operation is carried out on the surface of the old culture net in the rising process. Has the advantages that: the number of new culture nets to be prepared during the replacement of the net cage can be saved; and through the form of mechanical net changing, the net changing efficiency is improved, and the labor intensity of workers is reduced.

Description

Net changing method for aquaculture net

Technical Field

The invention relates to the field of net changing of marine product net cages, in particular to a net changing method of a culture net.

Background

The net cages are indispensable tools in the modern marine aquaculture industry, each net cage comprises a aquaculture net and net cage bodies, the adjacent net cage bodies are connected and fixed with each other, and the net cage bodies are paved with wood boards and the like, so that farmers can move among the net cages conveniently. The culture net needs to be replaced and used periodically. If 6 aquaculture net cages are arranged in one aquaculture water area, 6 new aquaculture net cages need to be prepared for replacement when the aquaculture net cages are replaced; in addition, the conventional net replacement is usually carried out manually, so that the net replacement efficiency is low and the manual labor intensity is high.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides a net changing method for a culture net, and by adopting the net changing mode, the number of new culture nets needing to be prepared during net box changing can be saved, and the investment cost of the culture net in culture is relatively reduced; and the manual net replacement is replaced by a mechanical net replacement mode, so that the net replacement efficiency is improved, and the manual labor intensity is reduced.

The aim of the invention is achieved by the following technical measures: a net changing method for a culture net comprises the following steps:

1) Preparing a new aquaculture net and transporting the new aquaculture net to the net cage of the old aquaculture net;

2) Pulling out the old culture net from the water by external force and laying a new culture net in the net cage at the same time;

3) When one side of the top of the old culture net and the bottom of the whole old culture net are both positioned above the water surface, stopping lifting the old culture net, and turning the marine products in the old culture net into the new culture net;

4) Continuously raising the old culture net and laying the new culture net through external force until the old culture net is completely separated from the water surface and fixing the new culture net on the net cage;

5) Performing parasite removal operation on the old breeding net by adopting a mode of spraying acid liquor, neutralizing with alkali liquor, or performing oxidation reduction treatment, or sterilizing with disinfectant;

in the step 2), cleaning operation is carried out on the surface of the old culture net in the rising process.

Further, in the step 2), the cleaning operation on the surface of the old aquaculture net is performed by vibrating the surface of the aquaculture net, spraying the surface of the aquaculture net by water columns and brushing the surface of the aquaculture net.

In the step 2), in the process of cleaning the surface of the old aquaculture net, the seafood is blocked by the plane part which is obliquely arranged, so that the seafood which is separated from the old aquaculture net is prevented from falling to the area outside the aquaculture net.

In the step 2), the plane part for blocking the marine products and the vertical projection plane of the old culture net are arranged at an acute angle.

Step 2), pull out old aquaculture net from the aquatic through conveying mechanism anticlockwise rotation, conveying mechanism includes power supply, conveyer belt, rotation axis and couple, the conveyer belt cover is located on two parallel arrangement's the rotation axis, and one of them rotation axis of power supply drive has a plurality of couples on the rotatory lateral surface of conveyer belt cyclic array distribution, old aquaculture net is hung to the couple.

The net changing method of the aquaculture net uses the moving mechanism to assist in carrying the new aquaculture net, hauling the old aquaculture net and laying the new aquaculture net.

The moving mechanism comprises wheels or buoyancy valves for moving, a connecting shaft, moving shafts and lantern rings, the wheels or the buoyancy valves are arranged at two ends of the moving shafts and connected through the connecting shaft, the lantern rings are sleeved on the connecting shaft, and hooks are connected to the lantern rings; one end of the moving mechanism is used for bearing, and the other end of the moving mechanism is used for assisting the net lifting of the old aquaculture net and the arrangement of the new aquaculture net.

Compared with the prior art, the invention has the beneficial effects that: by adopting the net changing mode, the number of new culture nets needing to be prepared during net box changing can be saved, and the investment cost of the culture nets in culture is relatively reduced; and the manual net replacement is replaced through a mechanical net replacement mode, the net replacement efficiency is improved, and the manual labor intensity is reduced.

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

Drawings

FIG. 1 is a flow chart of the method of the present invention.

Fig. 2 is a schematic side view of the screen changer of the present invention.

Fig. 3 is a schematic top view of the moving mechanism.

Fig. 4 is an assembly view of the connecting rod and the vibration rod.

The vibration device comprises a base 1, a base 2, a first supporting frame 3, a second supporting frame 4, a motor 5, a rotating shaft 6, a conveying belt 7, a hook 8, wheels 9, a wheel shaft 10, a connecting shaft 11, a telescopic assembly 12, a vibration motor 13, a connecting rod 14, a vibration rod 15, a hook 16, a lantern ring 17, a limiting mechanism 18, a baffle plate 19, a hairbrush 20 and a small wheel.

Detailed Description

As shown in fig. 1 to 4, a method for replacing a culture net comprises the following steps:

1) Preparing a new aquaculture net, carrying the new aquaculture net to the net cage of the old aquaculture net by utilizing the bearing of the moving mechanism of the net changing device;

2) Pulling out the old culture net from the water by external force (specifically, a conveying mechanism of the net changing device) and laying a new culture net in the net cage; the rope on one side of the top of the old aquaculture net is hooked on the hook 7 at the bottom of the conveying mechanism, the conveying mechanism is started, and the old aquaculture net is lifted under the anticlockwise rotation of the conveying belt 6, namely, the net is lifted. The rope on one side of the top of the new aquaculture net and the rope on the other side of the top of the old aquaculture net are hooked on the lantern ring 16 of the moving mechanism, and along with the lifting force of the conveying mechanism on the top of the old aquaculture net, the lantern ring 16 slides towards one end of the conveying mechanism along with the lifting force, so that the rope on the other side of the top of the old aquaculture net and the rope on one side of the top of the new aquaculture net are driven to horizontally slide.

3) When one side of the top of the old culture net and the bottom of the whole old culture net are both positioned above the water surface, stopping lifting the old culture net, and turning the marine products in the old culture net into the new culture net; the overturning process can be manual action, can also be realized by other overturning devices in the industry, and can also be used for further lifting and shaking the old culture net.

4) The old breeding net is lifted and the new breeding net is laid continuously by external force (specifically, the conveying mechanism of the net changing device) until the old breeding net is completely separated from the water surface and the new breeding net is fixed on the net cage; the pulling force of the conveying mechanism for lifting the old aquaculture net and the horizontal sliding of the lantern rings realize the movement of the rope hook on one side of the top of the new aquaculture net from one end to the other end in the net cage, and certainly, in the initial arrangement of the new aquaculture net, the rope hook on one side of the new aquaculture net is fixed with the net cage, and then the rope hook on the opposite side is fixed on the lantern rings.

5) Performing operation of removing parasites of the old breeding net on the old breeding net in a mode of spraying acid liquor, neutralizing alkali liquor, or performing oxidation reduction treatment, or sterilizing liquid for killing; the specific acid solution used can be hydrochloric acid or sulfuric acid, the specific alkali solution used can be soda ash or caustic soda, and the concentration of the specific alkali solution or acid solution can be determined according to the regulations in the industry or according to the indexes of killing common marine parasite acids. The invention realizes the killing of parasitic marine organisms by spraying acid liquor to the old aquaculture net, thereby thoroughly cleaning the old aquaculture net to achieve the condition of being put into aquaculture again. The neutralization of the alkali liquor is to ensure the culture environment of the culture net and protect the environmental conditions of water after being put into a water area. The old aquaculture net can be quickly put into the next round of aquaculture through the acid-base treatment of the old aquaculture net. The acid and alkali treatment can be replaced by oxidation-reduction treatment, such as spraying chlorine-containing disinfectant, such as sodium hypochlorite, and then reducing with sodium thiosulfate. The acid-base treatment can be replaced by direct spraying of disinfectant, and the specific disinfectant can be hydrogen peroxide and the like. Compared with the net changing in the prior art, the method reduces the number of new net boxes required by net changing, and can complete the net changing operation in a certain water area by only one net box.

In the step 2), cleaning operation is carried out on the surface of the old culture net in the rising process. Besides being attached by various marine parasites in a water area, the old culture net also provides living space for cultured marine products, and the cultured marine products can be separated from the culture net by carrying out various cleaning operations in the net lifting process. After the cleaning of the marine parasites is completed, the complexity of acid cleaning in the later period can be reduced, the using amount of acid liquor and alkali liquor is reduced, and the impurity removal work of the new aquaculture net can be reduced after the marine parasites are overturned into the new aquaculture net, namely, only the cultured marine products are overturned into the new aquaculture net as far as possible, and other marine parasites are still left on the old aquaculture net.

Further, in the step 2), the cleaning operation on the surface of the old aquaculture net is performed by vibrating the surface of the aquaculture net, spraying the surface of the aquaculture net by water columns and brushing the surface of the aquaculture net. Vibrating the surface of the culture net: a vibration mechanism of the screen changing device can be adopted; or vibration caused by manually beating the surface of the conveying belt; or manually flapping or shaking the lifted net, etc. The water column sprays the surface of the aquaculture net: can be reciprocating spraying of a water gun; or a plurality of water permeable holes on the water pipe. Brushing the surface of the culture net: in the net lifting process of the culture net, the surface of the culture net is brushed by the hairbrush to realize cleaning. The specific brush can be arranged and fixed on the net replacing device or can be manually held. The brush preferably has a length that covers the width of the belt to improve cleaning efficiency. The vibration cleaning, the water spray cleaning and the brush cleaning can exist simultaneously, singly or in combination. If vibration and brush coexist, can set up the vibration clearance at lower high position earlier in the direction of height of conveyer belt, then set up the brush at higher high position relatively, just can play dual guarantee.

In the step 2), in the process of cleaning the surface of the old aquaculture net, the seafood is blocked by the plane part which is obliquely arranged, so that the seafood which is separated from the old aquaculture net is prevented from falling to the area outside the aquaculture net. The plane member may be a baffle plate 18, or may be a mesh laid flat. The width of the planar member preferably covers the width of the conveyor belt. The projection area of the plane part on the horizontal plane is larger than or equal to the area of the moving mechanism away from the other end of the net cage, or the projection area of the plane part on the horizontal plane is larger than or equal to the horizontal cross-sectional area of the net cage. The width setting of the face component also ensures the blocking effect.

In the step 2), the plane part for blocking the marine products and the vertical projection plane of the old culture net are arranged at an acute angle. The acute angle arrangement ensures a complete blocking action of the planar member. The situation that the cage still escapes from the cage after being blocked can not occur. During the process of lifting the net, under the action of the brush 19 or the vibration of the vibration rod 14, marine products such as sea cucumbers fall off from the net, and the sea products may fall into the water outside the net cage after falling off, so that the baffle plate 18 is additionally arranged to block the marine products such as the sea cucumbers, and the sea products are guaranteed to fall into the net cage.

The screen changing device can be used in the method, the mechanization degree of the method can be improved through the screen changing device, and the labor intensity of workers is reduced.

The utility model provides a trade net device, trade net device is applicable to trade net of box with a net for marine product farming, includes moving mechanism, conveying mechanism and support body mechanism moving mechanism's one end mount body mechanism, conveying mechanism fixes on support body mechanism, conveying mechanism sets up with the moving mechanism is perpendicular, and moving mechanism is used for the removal of conveying mechanism and support body mechanism, and conveying mechanism is used for hanging the breed net and removes along conveying mechanism's direction of rotation. Can replace the artifical mode of trading the net in the current aquaculture through this trade net device, greatly reduced artifical intensity reduces the net degree of difficulty of trading. The net lifting of the culture net is realized through the conveying mechanism; the moving mechanism realizes the quick movement of the net changing device between the net cages; the support body mechanism realizes the support, installation and fixation of all functional parts of the screen changing device. The frame body mechanism comprises a base 1, a first support frame 2 and a second support frame 3, wherein the first support frame 2 and the second support frame 3 are arranged on the base 1 in parallel, the first support frame 2 is used for supporting the conveying mechanism, and the second support frame 3 is used for supporting the vibration motor 12. The base 1 can be arranged on the top of one end of the moving mechanism, or can be horizontally and fixedly connected with one end of the moving mechanism. Fig. 1 of the invention shows that a base 1 is horizontally and fixedly connected with one end of a moving mechanism.

Step 2), pull out old aquaculture net from the aquatic through conveying mechanism anticlockwise rotation, conveying mechanism includes power supply, rotation axis 5, conveyer belt 6 and

couple

7, 6 covers of conveyer belt are established on rotation axis 5, and the power supply provides power for rotation axis 5, and rotation axis 5 drives 6 cyclic annular rotations of conveyer belt, and cyclic annular array distributes on the rotatory lateral surface of conveyer belt 6 has a plurality of couples 7, couple 7 is hung old aquaculture net.

The hook 7 is used for hanging the net cage. The power source may be an electric motor 4 or a diesel engine, etc., and in fig. 1, the electric motor 4 is shown as the power source. The rotating shafts 5 are provided with two rotating shafts (driving shafts and driven shafts), the two rotating shafts 5 are arranged in parallel, one rotating shaft 5 (driving shaft) is directly connected with the motor 4, and the motor 4 is arranged on the frame body mechanism. The hook 7 is mainly used for hanging the aquaculture net in the net cage to rotate along the outer side surface of the conveyer belt 6 in the annular rotating process of the conveyer belt 6, so that the purpose that a machine replaces an artificial net is achieved. The conveyor belt 6 is preferably made of stainless steel, such as in the form of a sprocket.

The conveyer belt 6 is provided with a plurality of groups of

hooks

7, 3 groups of hooks 7 are shown in the attached drawing, and the preferable quantity ratio is more than 3 groups. The hooks 7 are even in number, 2 hooks 7 form 1 group, and each group of hooks 7 are respectively arranged at two ends of the conveying belt 6 in the horizontal direction. 2 are 1 group, which is a more reasonable quantity given on the premise of not hanging the breeding net, and the quantity is measured according to the quantity of the rope hooks on the breeding net. Certainly, if the aquaculture net is hung, the optimal scheme provided by the application can be jumped out, namely, a plurality of hooks 7 are arranged on the conveying belt 6, and then the aquaculture net is hung with the hooks 7. The breed net in the net cage is the cube or cuboid usually, like the breed net of 5m x 5m, all is equipped with the rope on 8 summits of breed net and colludes, and 4 ropes at breed net top collude and are connected with the box with a net frame, and 4 ropes at breed net bottom collude and are connected with the pendant respectively, and the pendant provides the gravity that sinks for breed net in aqueous. The hook 7 is firstly connected with the two rope hooks on one side of the top of the aquaculture net, the aquaculture net is pulled up under the drive of the anticlockwise rotation of the conveying belt 6, when the rope hook on one side of the bottom of the aquaculture net is separated from the water surface, the rope hook on one side of the bottom of the aquaculture net is connected with the nearest hook 7 on the conveying belt 6, the aquaculture net is continuously pulled up until the rope hook on the other side of the bottom of the aquaculture net is also connected with the hook 7 on the conveying belt 6 to rotate upwards, and the net pulling of the aquaculture net is basically finished. Of course, in the process of hauling the net, when a certain rope hook of the net is pulled to rotate to the other side surface of the conveyer belt 6, namely the rope hook starts to move from a vertical high point to a vertical low point, the rope hook is separated from the hook 7. Naturally, the separation of the rope hook from the hook 7 can be natural separation under the gravity reason or separation caused by manual action. The hook 7 on the conveyer belt 6 can be equivalently replaced by a lock catch and the like, namely all structural components connected and separated with the rope hook can be realized.

2 hooks 7 in a single group are arranged on the same horizontal line of the conveyor belt 6. This setting can be promoted simultaneously under same power, avoids the damage that the unbalanced pulling force of aquaculture net caused conveyer belt 6.

The net changing device comprises a brush 19, one end of the brush 19 is fixed through a frame body mechanism, and the other end of the brush 19 is used for brushing the outer side face of the conveying belt 6. The brush 19 sets up the top position at conveyer belt 6, and the setting of brush 19 can be to conveyer belt 6 the clearance of surface to guarantee that marine products such as sea cucumber are whole to drop, and clear away the adnexed of other impurity. The distance between the surface of the conveying belt 6 and the hairbrush 19 is 5cm-15cm.

One end of the moving mechanism is used for bearing the conveying mechanism, and the lantern ring at the other end of the moving mechanism is used for assisting in net lifting of an old aquaculture net and arrangement of a new aquaculture net.

Moving mechanism includes wheel 8, removes axle 9, connecting axle 10 and telescopic component 11, remove axle 9 and the perpendicular setting of connecting axle 10, install wheel 8 respectively at the length both ends that remove axle 9, wheel 8 is connected through the bearing with removing the end of axle 9, is equipped with telescopic component 11 on removing axle 9 and connecting axle 10. Remove axle 9 and have 2, connecting axle 10 has 2, 2 remove axle 9 parallel arrangement, 2 connecting axle 10 parallel arrangement, 2

remove axle

9 and 2 connecting axles 10 and be connected and form the quadrangle remove the axle 9 and go up the cover and be equipped with the lantern ring 16 the outside of lantern ring 16 is connected with hook 15, the diameter of lantern ring 16 is greater than the maximum external diameter of telescopic component 11. The telescopic assembly 11 can be realized by the rotation of an internal thread and an external thread, can also be realized by the matching of a spring lock column and a lock hole, can also be realized by the matching of a compression spring and a buckle, and the like. In the attached drawing 2 of this application, what show is the flexible subassembly 11 of spring lock post and lockhole form, specifically, if connecting axle 10, divide into two sections with connecting axle 10, set up the spring lock post on one of them section end, set up a plurality of lockholes on another section end, the diameter of establishing the spring lock post is less than the diameter of establishing the lockhole, inserts one section of lockhole with one section of spring lock post, and then adjusts the length of connecting axle 10 in the position of the lockhole of difference through adjusting the spring lock post. The main purpose of the telescopic assembly 11 is to realize the length adjustment of the movable shaft 9 and the connecting shaft 10 so as to adapt to the net replacement of more net cages with different sizes and specifications. The moving power of the wheels 8 of the moving mechanism may be manual pushing, driving by a power source such as the external motor 4, or assisting by an external telescopic member, and the external driving member is not shown in the drawings of the present application. Without the external driving part, the moving mechanism power in the figures of the present application can be considered to be manual pushing or external device boosting, such as a device including a hydraulic telescopic rod. The frame body mechanism is provided at one side of one of the moving shafts 9, and a plurality of small wheels 20 may be provided at the bottom of the frame body mechanism in order to balance the weight of the frame body mechanism. The hook 15 is used for assisting the net lifting of the old culture net and the net hanging of the new culture net, and finally, the net changing of the marine products such as sea cucumbers from the old culture net to the new culture net is realized. At the initial stage that old aquaculture net played the net, the rope of old aquaculture net top one side colludes and is connected with couple 7 of conveyer belt 6, the rope of old aquaculture net top opposite side colludes then to be connected with hook 15 on the lantern ring 16 (lantern ring 16 slides this moment and keeps away from the one end of conveyer belt 6 to connecting axle 10), and collude the rope of new aquaculture net top one side and hang together on the hook 15 on the lantern ring 16, along with conveyer belt 6 to the pulling of old aquaculture net, the top survey face of old aquaculture net is by the level to vertical slope gradually, lantern ring 16 follows the slip on connecting axle 10, the slip direction: towards the conveyor belt 6. The wheels 8 may be replaced by buoyant valves, such as two elongate buoyant valves, or 4 square or circular buoyant valves. If the moving mechanism adopting the wheels 8 can be suitable for moving between net cages which are paved and connected with boards, if the buoyancy valve is adopted, the moving mechanism can be suitable for moving on the water surface without the boards, power is provided for the moving mechanism through the power unit, and the moving mechanism is enabled to move quickly on the water surface under the buoyancy effect of the buoyancy valve. Of course, if a buoyancy valve structure is adopted, the telescopic assembly is not necessary and can be eliminated. The telescoping assembly is a preferred design when the wheel 8 configuration is employed and is not required.

The screen replacing device is characterized in that a limiting mechanism 17 is arranged on the connecting shaft 10, more than 1 limiting mechanism 17 is arranged on a single connecting shaft 10, the limiting mechanism 17 is arranged at the end position close to the connecting shaft 10, and the limiting mechanism 17 is used for positioning and fixing the screen replacing device during screen replacing. In the process of net changing, the net changing device is easily influenced by factors such as external wind power and the like, so that the net changing device deviates relative to the net cage, and in the deviating process, the net changing device easily falls into water, so that in the net lifting process, the net changing device can be fixed with the net cage frame body by utilizing the limiting mechanism 17, so that the net changing device is fixed, namely, the deviation of the net changing device is limited. The limiting mechanism 17 may be a rope or a chain for bolting, or 2 fasteners for clamping and opening, or a structure of a U-shaped clamping groove and a bolt for locking, or a combination of a baffle and a hook which is commonly used in the existing breeding industry, and the like. When 2 limiting mechanisms 17 are arranged on a single connecting shaft 10, the lantern ring 16 is arranged between the 2 limiting mechanisms 17, so that the lantern ring 16 is prevented from sliding on the connecting shaft 10 and being affected by the limiting mechanisms 17. The structure of the limiting mechanism 17 is designed only for use in direct movement on non-water surface, and when the moving mechanism is moving directly on water surface, the structure of the limiting mechanism 17 can be replaced, such as combining an anchor and an anchor chain.

The net changing device comprises a vibrating mechanism, the vibrating mechanism is used for vibrating the breeding net by the conveying mechanism in the net pulling process, the vibrating mechanism comprises a vibrating motor 12, a connecting rod 13 and a vibrating rod 14, two ends of the vibrating rod 14 are connected with the vibrating motor 12 through the connecting rod 13, and the vibrating motor 12 is arranged on one side of the conveying mechanism through a frame body mechanism. The vibration motor 12 is disposed near the midpoint in the height direction of the conveyor belt 6, or above the midpoint in the height direction of the conveyor belt 6. The output end of the vibration motor 12 is connected with one end of a connecting rod 13, the other end of the connecting rod 13 is of a U-shaped structure, and the tail end of an opening of the U-shaped structure is connected with two ends of a vibration rod 14 in the length direction. The conveyer belt 6 is an annular structure with a closed head and a closed tail, when the conveyer belt 6 is sleeved on the two parallel rotating shafts 5, a strip-shaped cavity is formed between the inner side surface of the conveyer belt 6 and the two parallel rotating shafts 5, and the vibration rod 14 is inserted into the strip-shaped cavity of the conveyer belt 6. The vibration rod 14 penetrates the width direction of the conveyor belt 6. The one end of remaining silent of U type structure has certain clearance apart from the nearest lateral surface of conveyer belt 6, the setting in clearance is guaranteed that conveyer belt 6 drives the aquaculture net and can pass through smoothly, and connecting rod 13 can not hinder the operation of aquaculture net. The gap is above 50 CM.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present specification describes embodiments, not every embodiment includes only a single embodiment, and such description is for clarity purposes only, and it is to be understood that all embodiments may be combined as appropriate by one of ordinary skill in the art to form other embodiments as will be apparent to those of skill in the art from the description herein.

Claims

1. A net changing method for a breeding net is characterized by comprising the following steps:

1) Preparing a new breeding net, carrying the new breeding net by using a moving mechanism, and carrying the new breeding net to a net cage of the old breeding net;

2) Pulling out the old culture net from the water through the conveying mechanism and laying a new culture net in the net cage at the same time; the rope on one side of the top of the old aquaculture net is hooked on the hook at the bottom of the conveying mechanism, the conveying mechanism is started, and the old aquaculture net is lifted under the anticlockwise rotation of the conveying belt, namely, the net lifting is started; the rope hook on one side of the top of the new aquaculture net and the rope hook on the other side of the top of the old aquaculture net are hung on the lantern ring of the moving mechanism, and along with the lifting force of the conveying mechanism on the top of the old aquaculture net, the lantern ring slides towards one end of the conveying mechanism along with the lifting force, so that the rope hook on the other side of the top of the old aquaculture net and the rope hook on one side of the top of the new aquaculture net are driven to horizontally slide;

4) The old breeding net and the new breeding net are continuously lifted by the conveying mechanism until the old breeding net is completely separated from the water surface and the new breeding net is fixed on the net cage;

5) Performing parasite removal operation on the old culture net by adopting a mode of spraying acid liquor, neutralizing alkali liquor, or performing oxidation reduction treatment, or sterilizing disinfectant;

in the step 2), cleaning operation is carried out on the surface of the old culture net in the rising process;

in the step 2), the conveying mechanism rotates anticlockwise to pull out the old aquaculture net from the water, the conveying mechanism comprises a power source, a conveying belt, a rotating shaft and hooks, the conveying belt is sleeved on the two rotating shafts which are arranged in parallel, the power source drives one of the rotating shafts, a plurality of hooks are distributed on the outer rotating side surface of the conveying belt in an annular array mode, and the hooks hook the old aquaculture net;

one end of the moving mechanism is used for bearing the conveying mechanism, and the lantern ring at the other end of the moving mechanism is used for assisting the net lifting of the old aquaculture net and the arrangement of the new aquaculture net; the moving mechanism comprises wheels, a moving shaft, a connecting shaft and a telescopic assembly, the moving shaft and the connecting shaft are vertically arranged, the wheels are respectively arranged at two ends of the length of the moving shaft, the wheels are connected with the tail end of the moving shaft through bearings, and the telescopic assembly is arranged on the moving shaft and the connecting shaft; remove the axle and have 2, the connecting axle has 2, 2 removal axle parallel arrangement, 2 connecting axle parallel arrangement, and 2 removal axles are connected with 2 connecting axles and are formed the quadrangle remove epaxial cover of cover and be equipped with the lantern ring the outside of the lantern ring is connected with the hook, the diameter of the lantern ring is greater than the maximum external diameter of flexible subassembly.

2. The net changing method for the aquaculture net according to claim 1, wherein: in the step 2), the cleaning operation on the surface of the old aquaculture net is carried out by vibrating the surface of the aquaculture net, spraying the surface of the aquaculture net by water columns and brushing the surface of the aquaculture net.

3. The aquaculture net replacing method according to claim 1, wherein: in the step 2), in the process of cleaning the surface of the old aquaculture net, the seafood is blocked by the plane part which is obliquely arranged, so that the seafood which is separated from the old aquaculture net is prevented from falling to the area outside the aquaculture net.

4. The aquaculture net replacing method according to claim 3, wherein: in the step 2), the plane part for blocking the marine products and the vertical projection plane of the old culture net are arranged at an acute angle.