A water purification treatment device and treatment method for the larval rearing of Macrobrachium rosenbergii

Abstract

The present invention discloses a water purification treatment device and treatment method for the water used in the breeding of Macrobrachium rosenbergii, belonging to the field of shrimp seedling breeding. A water purification treatment device for the water used in the breeding of Macrobrachium rosenbergii includes a support frame, and also includes: a treatment tank and a sewage pump, both fixedly connected to the support frame. Among them, a water suction pipe and a drain pipe are respectively fixedly connected to the output end and the input end of the sewage pump, the end of the drain pipe extends to the inner top of the treatment tank, and a plurality of branch pipes distributed circumferentially are fixedly connected to the lower end of the treatment tank; a storage tank with an end cover installed at the top is fixedly installed at the upper end of the treatment tank. Among them, a thin pipe extending into the treatment tank is fixedly connected to the lower end of the storage tank, and a stirring assembly is arranged in the storage tank; the present invention can improve the uniformity of the sewage and bleaching powder, thereby improving the treatment effect on the sewage, and the bleaching powder is not likely to be scattered in the air to pollute the surrounding environment.

Description

Technical Field

[0001] The present invention relates to the technical field of shrimp seedling breeding, and particularly relates to a water purification treatment device and a treatment method for the water used in the breeding of Macrobrachium rosenbergii seedlings. Background Art

[0002] Shrimp farming is an industry that conducts artificial breeding production with shrimps of relatively high economic value as the object. The farming methods include pond farming, bay farming, cage farming, etc., and there are also methods of mixed farming such as fish, shrimp, and shellfish. The varieties of farming include the oriental prawn and the tiger prawn of penaeid prawns in seawater shrimps, and there is also lobster farming in southern China. In freshwater shrimps, there are Macrobrachium rosenbergii, etc.

[0003] In the farming of Macrobrachium rosenbergii, in order to prevent the sludge at the bottom of the farming pond from causing diseases to the shrimp seedlings, it is necessary to regularly pump the sewage at the bottom of the farming pond into the storage pond for disinfection and precipitation. During disinfection, it is mainly carried out by manually sprinkling bleaching powder. During the process of sprinkling bleaching powder, the bleaching powder is difficult to be absorbed by the sewage in time and the uniformity is poor, which affects the disinfection effect. And it is easy to float in the air and pollute the air during sprinkling, which is not environmentally friendly enough. Summary of the Invention

[0004] The purpose of the present invention is to solve the problems in the prior art that the effect of manually sprinkling bleaching powder is poor and it is easy to pollute the environment, and to propose a water purification treatment device and a treatment method for the water used in the breeding of Macrobrachium rosenbergii seedlings.

[0005] In order to achieve the above purpose, the present invention adopts the following technical scheme:

[0006] A water purification treatment device for the water used in the breeding of Macrobrachium rosenbergii seedlings includes a support frame, and also includes: a treatment tank and a sewage pump, both of which are fixedly connected to the support frame. Among them, the output end and the input end of the sewage pump are respectively fixedly connected with a water suction pipe and a drain pipe, the end of the drain pipe extends to the inner top of the treatment tank, and the lower end of the treatment tank is fixedly connected with a plurality of branch pipes distributed circularly; a storage tank with an end cover installed on the top is fixedly installed on the upper end of the treatment tank. Among them, the lower end of the storage tank is fixedly connected with a thin pipe extending into the treatment tank, and a stirring component is arranged in the storage tank.

[0007] In order to improve the mixing effect of bleaching powder and sewage, preferably, the stirring component includes a rotating shaft arranged in the treatment tank, the lower end of the rotating shaft penetrates to the bottom of the treatment tank, and stirring rods are fixedly installed on the outer wall of the rotating shaft. Among them, a fan blade facing the output end of the drain pipe is fixedly installed on the top of the rotating shaft, and a lifting part for driving the rotating shaft to move up and down is arranged at the bottom of the treatment tank.

[0008] In order to drive the stirring rod to reciprocate up and down, further, the lifting part includes a reciprocating lead screw rotatably connected to the bottom of the treatment tank. A reciprocating slide plate is threadedly connected to the outer wall of the reciprocating lead screw. Among them, a driving gear is fixedly installed at the lower end of the rotating shaft, and a driven gear meshed with the driving gear is fixedly installed at the lower end of the reciprocating lead screw. The lower end of the rotating shaft is rotatably connected to the reciprocating slide plate. A protective cover is fixedly installed at the bottom of the treatment tank, and the reciprocating lead screw is arranged inside the protective cover.

[0009] In order to filter out the shrimp fry corpses and shrimp shells in the sewage, further, a filter plate is longitudinally slidably installed on the inner wall of the treatment tank. The middle part of the filter plate is arched upward. The rotating shaft is rotatably connected to the filter plate. The filter plate is arranged between the fan blades and the stirring rod, and the lower end of the thin tube penetrates to the lower end of the filter plate.

[0010] In order to facilitate the cleaning of the shrimp fry corpses and shrimp shells filtered out by the filter plate, further, a slot aligned with the filter plate is provided on the outer wall of the treatment tank. A sleeve is slidably sleeved on the outer wall of the treatment tank. An annular channel is fixedly connected to the upper end of the sleeve. A telescopic device is fixedly installed on the outer wall of the treatment tank, and the telescopic end of the telescopic device is fixedly connected to the annular channel.

[0011] In order to improve the uniformity and efficiency of the bleaching powder discharged by the thin tube, further, a U-shaped rod is fixedly connected to the lower end of the filter plate. One end of the U-shaped rod is fixedly connected to a dredging rod penetrating to the upper end of the thin tube, and uniformly distributed brushes are arranged on the outer wall of the dredging rod.

[0012] In order to continuously change the flow direction of the sewage in the treatment tank, further, an annular plate is rotatably connected to the inner bottom of the treatment tank. Two through holes are provided on the annular plate, and the two through holes are aligned with two of the branch pipes. The annular plate is connected to the rotating shaft through a connecting part.

[0013] Preferably, in order to drive the strip plate to rotate, the connecting part includes a strip plate longitudinally slidably connected to the outer wall of the rotating shaft, and both ends of the strip plate are fixedly connected to the annular plate.

[0014] In order to automatically increase the air pressure in the storage tank, further, a telescopic airbag is fixedly installed between the reciprocating slide plate and the bottom of the treatment tank. An air suction pipe and an exhaust pipe communicated with the telescopic airbag are fixedly connected to the telescopic airbag. The end of the exhaust pipe extends to the inner top of the storage tank, and one-way valves are fixedly installed in both the air suction pipe and the exhaust pipe.

[0015] A method for purifying the water body used for the breeding of Macrobrachium rosenbergii is as follows:

[0016] Step 1: When the shrimp fry farming reaches about 100 days, pump the sewage at the bottom of multiple breeding ponds into the storage pond. Each breeding pond can pump out at most 10 cm of water at a time, and fill a single storage pond within 24 hours.

[0017] Step 2: After a single storage pond is full of water, immediately disinfect the water body with bleaching powder with an available chlorine content of 37%, and the disinfection dose is 30 ppm.

[0018] Step 3: Two days after disinfection, evenly sprinkle 30 catties of quicklime per mu of water area.

[0019] Step 5: Four days after the lime is sprinkled, pump the surface water of the reservoir back into the breeding pond, and appropriate external water can be added to the reservoir to make up for the evaporation loss on hot days and the water loss during the operation process.

[0020] Compared with the prior art, the present invention provides a water purification treatment device for Macrobrachium rosenbergii seedling rearing, which has the following beneficial effects:

[0021] 1. For this water purification treatment device for Macrobrachium rosenbergii seedling rearing, large particle impurities in the sewage can be filtered out through the filter plate, such as the corpses and shells of shrimp fry in the sludge, so that the shrimp fry pool and shells can be recycled, and it can prevent the pollution of the water body after the corpses and shells of shrimp fry rot.

[0022] 2. For this water purification treatment device for Macrobrachium rosenbergii seedling rearing, the bleaching powder in the storage box will slide down from the thin tube to the inner bottom of the treatment box, so as to be premixed with the sewage in the treatment box in advance, improving the uniformity of the sewage and bleaching powder, and then improving the treatment effect on the sewage. And the bleaching powder is not easy to disperse in the air to pollute the surrounding environment.

[0023] 3. For this water purification treatment device for Macrobrachium rosenbergii seedling rearing, the flowing sewage will impact the fan blades, the fan blades will drive the rotating shaft to rotate, and the rotating shaft will drive the stirring rod to continuously stir the sewage in the treatment box, so that the sewage and bleaching powder are more fully mixed, indirectly improving the purification effect on the sewage.

[0024] 4. For this water purification treatment device for Macrobrachium rosenbergii seedling rearing, the reciprocating slide plate drives the rotating shaft to move up and down reciprocally. Therefore, while the rotating shaft drives the stirring rod to sweep circumferentially, the stirring rod will also move up and down reciprocally, thus significantly improving the effect of mixing the sewage and bleaching powder, and indirectly improving the purification effect on the sewage.

[0025] 5. For this water purification treatment device for Macrobrachium rosenbergii seedling rearing, the rotating shaft drives the filter plate to move up and down in the treatment box, and the impurities on the filter plate will slide to the periphery of the filter plate to prevent the impurities from accumulating and blocking in the middle of the filter plate, ensuring the filtering efficiency of the filter plate. Description of the Drawings

[0026] Figure 1 The first - perspective axonometric structural schematic diagram of a water - body purification treatment device for Macrobrachium rosenbergii seedling cultivation proposed by the present invention;

[0027] Figure 2 The second - perspective axonometric structural schematic diagram of a water - body purification treatment device for Macrobrachium rosenbergii seedling cultivation proposed by the present invention;

[0028] Figure 3 The partial - section structural schematic diagram of a water - body purification treatment device for Macrobrachium rosenbergii seedling cultivation proposed by the present invention;

[0029] Figure 4 The axonometric structural schematic diagram of the treatment tank of a water - body purification treatment device for Macrobrachium rosenbergii seedling cultivation proposed by the present invention;

[0030] Figure 5 The partial axonometric structural schematic of a water - body purification treatment device for Macrobrachium rosenbergii seedling cultivation proposed by the present invention Figure 1 ;

[0031] Figure 6 The partial axonometric structural schematic of a water - body purification treatment device for Macrobrachium rosenbergii seedling cultivation proposed by the present invention Figure 2 。

[0032] In the figure: 1, support frame; 2, treatment tank; 3, sewage pump; 4, drain pipe; 5, water suction pipe; 6, branch pipe; 7, filter plate; 8, storage tank; 9, thin pipe; 10, rotating shaft; 11, fan blade; 12, stirring rod; 13, reciprocating lead screw; 14, driven gear; 15, reciprocating slide plate; 16, driving gear; 17, dredging rod; 18, brush; 19, U - shaped rod; 20, slot; 21, annular channel; 22, telescopic device; 23, end cover; 24, strip - shaped plate; 25, annular plate; 26, through - hole; 27, telescopic airbag; 28, air suction pipe; 29, exhaust pipe; 30, sleeve; 31, protective cover. Detailed implementation manners

[0033] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments.

[0034] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present invention.

[0035] Example 1:

[0036] Referring to Figures 1-6 , a water purification treatment device for the seedling rearing of Macrobrachium rosenbergii, includes a support frame 1 for supporting the entire device, and further includes: a treatment tank 2 and a sewage pump 3, both fixedly connected to the support frame 1. The sewage pump 3 is used to pump the sewage at the bottom of the aquaculture pond. Among them, the output end and the input end of the sewage pump 3 are respectively fixedly connected with a water suction pipe 5 and a drain pipe 4. The end of the drain pipe 4 extends to the inner top of the treatment tank 2. The lower end of the treatment tank 2 is fixedly connected with a plurality of branch pipes 6 distributed circumferentially. The number of branch pipes 6 is 4 - 12, and preferably 8 in this application; a storage tank 8 with an end cover 23 installed on the top is fixedly installed on the upper end of the treatment tank 2. The storage tank 8 is used to store bleaching powder, and the bleaching powder is used to disinfect and purify the sewage. Among them, the lower end of the storage tank 8 is fixedly connected with a thin pipe 9 extending into the treatment tank 2, and a stirring component is provided in the storage tank 8.

[0037] When it is necessary to pump the sewage at the bottom of the aquaculture pond into the storage pond, the end of the water suction pipe 5 is extended into the inner bottom of the aquaculture pond, and then the sewage pump 3 is started. The sewage pump 3 will pump away the sewage in the aquaculture pond and discharge it into the treatment tank 2 through the drain pipe 4, and then discharge it into the storage pond through the branch pipes 6 at the bottom of the treatment tank 2. During the pumping process, the bleaching powder in the storage tank 8 will slide down through the thin pipe 9 to the inner bottom of the treatment tank 2, so as to be mixed with the sewage in the treatment tank 2 in advance, improving the uniformity of the sewage and the bleaching powder, and further improving the treatment effect on the sewage. And the bleaching powder is not easily scattered in the air to pollute the surrounding environment, and the stirring component can make the sewage and the bleaching powder mix more fully, indirectly improving the purification effect on the sewage;

[0038] In practice, since the water body in the aquaculture pond will continue to be recycled after being treated in the storage pond, the phenomenon of large-scale drainage and replacement in the traditional aquaculture process is eliminated. The recycling rate of the aquaculture water reaches more than 95%, greatly reducing some biosafety problems that may be brought by external water, thus ensuring that the Macrobrachium rosenbergii broodstock cultivated in the pond do not carry specific pathogens (SPF), and the broodstock have full stomachs, strong vitality, and are deeply favored by seedling rearing enterprises.

[0039] Example 2:

[0040] Referring to Figure 3 , Figure 5 and Figure 6 , it is basically the same as Example 1. Furthermore, the specific implementation scheme of the stirring component is specifically disclosed.

[0041] The stirring assembly includes a rotating shaft 10 disposed in the processing tank 2. The lower end of the rotating shaft 10 penetrates to the bottom of the processing tank 2. A stirring rod 12 is fixedly installed on the outer wall of the rotating shaft 10. Among them, a fan blade 11 facing the output end of the drain pipe 4 is fixedly installed at the top of the rotating shaft 10. A lifting portion for driving the rotating shaft 10 to move up and down is provided at the bottom of the processing tank 2;

[0042] When it is necessary to pump the sewage at the bottom of the aquaculture pond into the storage pond, the end of the water suction pipe 5 is extended into the inner bottom of the aquaculture pond, and then the sewage pump 3 is started. The sewage pump 3 will pump away the sewage in the aquaculture pond and discharge it into the processing tank 2 through the drain pipe 4, and then discharge it into the reservoir through the branch pipe 6 at the bottom of the processing tank 2. During the pumping process, the bleaching powder in the storage tank 8 will slide down through the thin pipe 9 to the inner bottom of the processing tank 2, so as to be pre-mixed with the sewage in the processing tank 2 in advance, improving the uniformity of the sewage and the bleaching powder, and thus improving the treatment effect on the sewage. And the bleaching powder is not easy to disperse in the air and pollute the surrounding environment. When the sewage is discharged from the drain pipe 4, the flowing sewage will impact the fan blade 11, and the fan blade 11 will drive the rotating shaft 10 to rotate. The rotating shaft 10 will drive the stirring rod 12 to continuously stir the sewage in the processing tank 2, so that the sewage and the bleaching powder are more fully mixed, indirectly improving the purification effect on the sewage. The lifting portion can make the rotating shaft 10 drive the stirring rod 12 to sweep in a circle and at the same time make the stirring rod 12 reciprocate up and down, thus significantly improving the effect of mixing the sewage and the bleaching powder and indirectly improving the purification effect on the sewage.

[0043] Embodiment Three:

[0044] Refer to Figure 3 With Figure 5 , which is basically the same as Embodiment Two. Further, the specific implementation scheme of the lifting portion is specifically disclosed.

[0045] The lifting portion includes a reciprocating lead screw 13 rotatably connected to the bottom of the processing tank 2. A reciprocating slide plate 15 is threadedly connected to the outer wall of the reciprocating lead screw 13. Among them, a driving gear 16 is fixedly installed at the lower end of the rotating shaft 10, and a driven gear 14 meshed with the driving gear 16 is fixedly installed at the lower end of the reciprocating lead screw 13. The lower end of the rotating shaft 10 is rotatably connected to the reciprocating slide plate 15. A protective cover 31 is fixedly installed at the bottom of the processing tank 2, and the reciprocating lead screw 13 is disposed in the protective cover 31;

[0046] When the drain pipe 4 discharges sewage, the flowing sewage will impact the fan blades 11, the fan blades 11 will drive the rotating shaft 10 to rotate, and the rotating shaft 10 will drive the stirring rod 12 to continuously stir the sewage in the treatment tank 2, so that the sewage and bleaching powder can be more fully mixed, indirectly improving the purification effect of the sewage. The lifting part can make the rotating shaft 10 drive the stirring rod 12 to sweep in a circle and at the same time make the stirring rod 12 move up and down reciprocally, thereby significantly improving the effect of mixing the sewage and bleaching powder and indirectly improving the purification effect of the sewage. During the rotation of the rotating shaft 10, the rotating shaft 10 will drive the driving gear 16 to rotate, the driving gear 16 will drive the driven gear 14 to rotate, the driven gear 14 will drive the reciprocating lead screw 13 to rotate, the reciprocating lead screw 13 will drive the reciprocating slide plate 15 to move up and down reciprocally, and the reciprocating slide plate 15 will drive the rotating shaft 10 to move up and down reciprocally. Therefore, while the rotating shaft 10 drives the stirring rod 12 to sweep in a circle, it will also make the stirring rod 12 move up and down reciprocally, thereby significantly improving the effect of mixing the sewage and bleaching powder and indirectly improving the purification effect of the sewage.

[0047] Furthermore, a telescopic airbag 27 is fixedly installed between the reciprocating slide plate 15 and the bottom of the treatment tank 2. Among them, an air suction pipe 28 and an exhaust pipe 29 communicated with it are fixedly connected to the telescopic airbag 27. The end of the exhaust pipe 29 extends to the inner top of the storage tank 8, and one-way valves are fixedly installed in both the air suction pipe 28 and the exhaust pipe 29;

[0048] When the reciprocating slide plate 15 moves up and down, the reciprocating slide plate 15 will also reciprocally press and stretch the telescopic airbag 27. When the telescopic airbag 27 is pressed, it will blow air into the storage tank 8 through the exhaust pipe 29. When the end cover 23 of the storage tank 8 is closed, the pressure in the storage tank 8 will increase, so that the bleaching powder can be discharged more efficiently from the thin pipe 9. When the telescopic airbag 27 is stretched, it will inhale air through the air suction pipe 28.

[0049] Embodiment 4:

[0050] Refer to Figures 3-5 , which is basically the same as Embodiment 3. Furthermore, a specific implementation plan for filtering sewage is specifically added.

[0051] A filter plate 7 for filtering shrimp fry corpses and shrimp shells is longitudinally slidably installed on the inner wall of the treatment tank 2. The middle part of the filter plate 7 is arched upward. The rotating shaft 10 is rotatably connected to the filter plate 7. The filter plate 7 is arranged between the fan blades 11 and the stirring rod 12. The lower end of the thin pipe 9 penetrates to the lower end of the filter plate 7;

[0052] When it is necessary to pump the sewage at the bottom of the aquaculture pond into the water storage pond, the end of the water suction pipe 5 is extended into the inner bottom of the aquaculture pond, and then the sewage pump 3 is started. The sewage pump 3 will pump away the sewage in the aquaculture pond and discharge it into the treatment tank 2 through the drain pipe 4, and then discharge it into the reservoir through the branch pipe 6 at the bottom of the treatment tank 2. During the pumping process, the bleaching powder in the storage tank 8 will slide down through the thin pipe 9 to the inner bottom of the treatment tank 2, so as to be mixed with the sewage in the treatment tank 2 in advance, improving the uniformity of the sewage and the bleaching powder, and thus improving the treatment effect on the sewage. And the bleaching powder is not easy to disperse in the air and pollute the surrounding environment. After the sewage enters the treatment tank 2, it will first pass through the filter plate 7. The filter plate 7 can filter out large particle impurities in the sewage, such as the corpses of shrimp fry and shrimp shells in the sludge, so as to recycle the shrimp fry pond body and shrimp shells and prevent the water body from being polluted after the corpses of shrimp fry and shrimp shells rot;

[0053] When the rotating shaft 10 moves up and down, the rotating shaft 10 will also drive the filter plate 7 to move up and down in the treatment tank 2. The filter plate 7 will drive the impurities filtered out on the upper end face to shake. Since the middle part of the filter plate 7 is arched upward, the impurities will slide down to the periphery of the filter plate 7 to prevent the impurities from accumulating and blocking in the middle part of the filter plate 7, ensuring the filtering efficiency of the filter plate 7.

[0054] Furthermore, a slotted opening 20 aligned with the filter plate 7 is provided on the outer wall of the treatment tank 2. A sleeve 30 is slidably sleeved on the outer wall of the treatment tank 2. The upper end of the sleeve 30 is fixedly connected with an annular channel 21. A telescopic device 22 is fixedly installed on the outer wall of the treatment tank 2. The telescopic end of the telescopic device 22 is fixedly connected with the annular channel 21;

[0055] When it is necessary to clean the impurities around the upper end of the filter plate 7, the sewage pump 3 is turned off, and the telescopic device 22 is used to drive the annular channel 21 to move downward. The annular channel 21 will drive the sleeve 30 to move downward synchronously. When the sleeve 30 completely disengages from the slotted opening 20, the impurities around the filter plate 7 can be cleaned out in the slotted opening 20.

[0056] Furthermore, the lower end of the filter plate 7 is fixedly connected with a U-shaped rod 19. One end of the U-shaped rod 19 is fixedly connected with a dredging rod 17 that penetrates to the upper end of the thin pipe 9. Uniformly distributed brushes 18 are provided on the outer wall of the dredging rod 17;

[0057] When the filter plate 7 moves up and down, the filter plate 7 will drive the dredging rod 17 to move up and down in the thin pipe 9 through the U-shaped rod 19. The dredging rod 17 will make the bleaching powder in the storage tank 8 and the thin pipe 9 slide down more evenly and efficiently. On the one hand, it prevents blockage in the thin pipe 9, and on the other hand, it can make the bleaching powder mix more evenly into the sewage. The brushes 18 on the outer wall of the dredging rod 17 can improve the dredging effect of the dredging rod 17.

[0058] Example Five:

[0059] Reference Figure 3 , Figure 5 and Figure 6 , which is basically the same as the fourth embodiment. Furthermore, specific implementation schemes for improving the mixing effect of bleaching powder are specifically added.

[0060] The inner bottom of the treatment tank 2 is rotatably connected with an annular plate 25. There are two through holes 26 on the annular plate 25, and the two through holes 26 are aligned with two of the branch pipes 6. The annular plate 25 is connected to the rotating shaft 10 through a connecting part. The connecting part includes a strip plate 24 that is longitudinally slidably connected to the outer wall of the rotating shaft 10. Both ends of the strip plate 24 are fixedly connected to the annular plate 25;

[0061] When the sewage is discharged through the drain pipe 4, the flowing sewage will impact the fan blades 11, and the fan blades 11 will drive the rotating shaft 10 to rotate. The rotating shaft 10 will drive the stirring rod 12 to continuously stir the sewage in the treatment tank 2, so that the sewage and bleaching powder can be more fully mixed, indirectly improving the purification effect on the sewage. The lifting part can make the rotating shaft 10 drive the stirring rod 12 to move up and down reciprocally while making a circular sweep, thus significantly improving the effect of mixing the sewage and bleaching powder and indirectly improving the purification effect on the sewage. Since there are only two through holes 26 on the annular plate 25, only two branch pipes 6 will discharge sewage at the bottom of the treatment tank 2. When the rotating shaft 10 rotates, it will also drive the strip plate 24 to rotate. The strip plate 24 will drive the annular plate 25 to rotate on the inner bottom of the treatment tank 2, and the annular plate 25 will drive the two through holes 26 to make a circular sweep. Thus, the two through holes 26 will continuously change positions and will be aligned with other multiple branch pipes 6 in turn. Therefore, the treatment tank 2 will continuously change the branch pipes 6 to discharge sewage, so the sewage at the inner bottom of the treatment tank 2 will continuously change the flow direction. When changing the flow direction, the bleaching powder and sewage can be more fully mixed to further improve the purification effect of the sewage.

[0062] A method for purifying and treating the water body used for the breeding of Macrobrachium rosenbergii, the operation steps are as follows:

[0063] Step 1: When the shrimp fry are cultured for about 100 days, the sewage at the bottom of multiple breeding ponds is pumped into the storage pond. Each breeding pond can pump out at most 10 cm of water each time, and a single storage pond is filled within 24 hours;

[0064] Step 2: After a single storage pond is full of water, immediately disinfect the water body with bleaching powder with an available chlorine content of 37%, and the disinfection dose is 30 ppm;

[0065] Step 3: Two days after disinfection, evenly sprinkle 30 catties of quicklime per mu of water area;

[0066] Step 5: Four days after lime is sprinkled, pump the surface water of the reservoir back into the aquaculture pond, and appropriate amount of external water can be added to the reservoir to make up for the evaporation loss on hot days and the water loss during the operation process.

[0067] For this water purification treatment device for the fry water of Macrobrachium rosenbergii, when it is necessary to pump the sewage at the bottom of the aquaculture pond into the reservoir pond, the end of the water suction pipe 5 is extended into the inner bottom of the aquaculture pond, and then the sewage pump 3 is started. The sewage pump 3 will pump away the sewage in the aquaculture pond and discharge it into the treatment tank 2 through the drain pipe 4. After the sewage enters the treatment tank 2, it will first pass through the filter plate 7. The filter plate 7 can filter out large particle impurities in the sewage, such as the fry corpses and shrimp shells in the sludge, so as to recycle the fry pond body and shrimp shells and prevent the pollution of the water body after the decay of the fry corpses and shrimp shells. After the sewage is filtered, it will fall to the inner bottom of the treatment tank 2 and then be discharged into the reservoir through the branch pipe 6 at the bottom of the treatment tank 2;

[0068] During the pumping process, the bleaching powder in the storage tank 8 will slide down to the inner bottom of the treatment tank 2 through the thin pipe 9, so as to be mixed with the sewage in the treatment tank 2 in advance, improving the uniformity of the sewage and the bleaching powder, and then improving the effect of treating the sewage. And the bleaching powder is not easy to disperse in the air and pollute the surrounding environment. When the sewage is discharged through the drain pipe 4, the flowing sewage will impact the fan blade 11, and the fan blade 11 will drive the rotating shaft 10 to rotate. The rotating shaft 10 will drive the stirring rod 12 to continuously stir the sewage in the treatment tank 2, so that the sewage and the bleaching powder are more fully mixed, indirectly improving the purification effect of the sewage;

[0069] During the rotation of the rotating shaft 10, the rotating shaft 10 will drive the driving gear 16 to rotate. The driving gear 16 will drive the driven gear 14 to rotate. The driven gear 14 will drive the reciprocating lead screw 13 to rotate. The reciprocating lead screw 13 will drive the reciprocating slide plate 15 to move up and down reciprocally. The reciprocating slide plate 15 will drive the rotating shaft 10 to move up and down reciprocally. Therefore, while the rotating shaft 10 drives the stirring rod 12 to sweep in a circle, it will also make the stirring rod 12 move up and down reciprocally, thus significantly improving the effect of mixing the sewage and the bleaching powder and indirectly improving the purification effect of the sewage.

[0070] The above is only the preferred specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A water purification treatment device for the breeding of Macrobrachium rosenbergii, comprising a support frame (1), characterized in that, Also included are: A processing tank (2) and a sewage pump (3), both fixedly connected to the support frame (1), wherein, a water suction pipe (5) and a drain pipe (4) are respectively and fixedly connected to the output end and the input end of the sewage pump (3), the end of the drain pipe (4) extends to the inner top of the processing tank (2), and a plurality of circumferentially distributed branch pipes (6) are fixedly connected to the lower end of the processing tank (2); A storage tank (8) with an end cover (23) installed at the top, fixedly installed at the upper end of the processing tank (2), wherein, a thin pipe (9) extending into the processing tank (2) is fixedly connected to the lower end of the storage tank (8), and a stirring assembly is provided in the storage tank (8); The stirring assembly includes a rotating shaft (10) disposed in the processing tank (2), the lower end of the rotating shaft (10) penetrates to the bottom of the processing tank (2), and stirring rods (12) are fixedly installed on the outer wall of the rotating shaft (10), wherein, a fan blade (11) facing the output end of the drain pipe (4) is fixedly installed at the top of the rotating shaft (10), and a lifting portion for driving the rotating shaft (10) to move up and down is provided at the bottom of the processing tank (2); The lifting portion includes a reciprocating lead screw (13) rotatably connected to the bottom of the processing tank (2), and a reciprocating sliding plate (15) is threadedly connected to the outer wall of the reciprocating lead screw (13), wherein, a driving gear (16) is fixedly installed at the lower end of the rotating shaft (10), a driven gear (14) meshing with the driving gear (16) is fixedly installed at the lower end of the reciprocating lead screw (13), the lower end of the rotating shaft (10) is rotatably connected to the reciprocating sliding plate (15), a protective cover (31) is fixedly installed at the bottom of the processing tank (2), and the reciprocating lead screw (13) is disposed inside the protective cover (31).

2. The water purification treatment device for the fry cultivation of Macrobrachium rosenbergii according to claim 1, characterized in that, A filter plate (7) is longitudinally slidably installed on the inner wall of the processing tank (2), the middle of the filter plate (7) is arched upward, the rotating shaft (10) is rotatably connected to the filter plate (7), the filter plate (7) is disposed between the fan blade (11) and the stirring rods (12), and the lower end of the thin pipe (9) penetrates to the lower end of the filter plate (7).

3. The water purification treatment device for the seedling rearing of Macrobrachium rosenbergii according to claim 2, characterized in that, A slot (20) aligned with the filter plate (7) is provided on the outer wall of the processing tank (2), a sleeve (30) is slidably sleeved on the outer wall of the processing tank (2), a ring channel (21) is fixedly connected to the upper end of the sleeve (30), and a telescopic device (22) is fixedly installed on the outer wall of the processing tank (2), and the telescopic end of the telescopic device (22) is fixedly connected to the ring channel (21).

4. The water purification treatment device for Macrobrachium rosenbergii fry rearing according to claim 3, characterized in that, A U-shaped rod (19) is fixedly connected to the lower end of the filter plate (7), a dredging rod (17) penetrating to the upper end of the thin pipe (9) is fixedly connected to one end of the U-shaped rod (19), and uniformly distributed brushes (18) are provided on the outer wall of the dredging rod (17).

5. The water purification treatment device for the seedling rearing of Macrobrachium rosenbergii according to claim 4, wherein, An annular plate (25) is rotatably connected to the inner bottom of the processing tank (2), two through holes (26) are provided on the annular plate (25), the two through holes (26) are aligned with two of the branch pipes (6), and the annular plate (25) is connected to the rotating shaft (10) through a connecting portion.

6. The water purification treatment device for Macrobrachium rosenbergii seedling cultivation according to claim 5, characterized in that, The connecting part includes a strip-shaped plate (24) longitudinally and slidably connected to the outer wall of the rotating shaft (10), and both ends of the strip-shaped plate (24) are fixedly connected to an annular plate (25).

7. The water purification treatment device for Macrobrachium rosenbergii seedling rearing according to claim 6, characterized in that, A telescopic airbag (27) is fixedly installed between the reciprocating sliding plate (15) and the bottom of the treatment tank (2). Among them, an air suction pipe (28) and an exhaust pipe (29) communicated with the telescopic airbag (27) are fixedly connected to the telescopic airbag (27). The end of the exhaust pipe (29) extends to the inner top of the storage tank (8). One-way valves are fixedly installed in both the air suction pipe (28) and the exhaust pipe (29).

8. A method for purifying and treating the water body for cultivating Macrobrachium rosenbergii larvae, which uses the water body purification and treatment device for cultivating Macrobrachium rosenbergii larvae described in any one of claims 1-7, characterized in that, The operation steps are as follows: Step 1: When the shrimp fry farming enters 100 days, pump the sewage at the bottom of multiple breeding ponds into the water storage pond. Each breeding pond can pump out at most 10 cm of water each time, and fill a single water storage pond within 24 hours. Step 2: After a single water storage pond is full of water, immediately disinfect the water body with bleaching powder with an effective chlorine content of 37%, and the disinfection dose is 30 ppm. Step 3: Two days after disinfection, evenly sprinkle 30 catties of quicklime per mu of water area. Step 5: Four days after the quicklime is sprinkled, pump the surface water of the water storage pond back into the breeding pond, and appropriate external water can be supplemented to the water storage pond to make up for the evaporation loss on hot days and the water loss during the operation process.

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