A shipboard euphausia superba fractionation device

Abstract

The present application relates to the technical field of processing of euphausiids, and discloses a shipborne Antarctic krill grading device, which comprises a receiving shell, a bottom plate and a screening and separating device, the bottom plate is arranged on the lower surface of the receiving shell, and the screening and separating device is arranged in the inner wall of the receiving shell, the screening and separating device comprises a frame, the frame is arranged in the inner wall of the receiving shell, one end of the frame is fixedly connected with an outer screen, the end, away from the frame, of the outer screen is fixedly connected with a sealing ring, the inner wall of the outer screen is provided with a middle screen, the inner wall of the middle screen is provided with an inner screen, and the two ends of the middle screen and the inner screen are fixedly connected with the frame and the sealing ring respectively. In the present application, a multi-stage centrifugal screening structure is adopted, the pore size gradient of the inner screen, the middle screen and the outer screen is matched with centrifugal force, three-stage precise separation of krill is realized, the grading efficiency and accuracy are significantly improved compared with the traditional screening mode, the integrated rotary screening design is compact in structure, small in space occupation, suitable for the limited working environment of the ship, and capable of meeting the needs of efficient grading operation at sea.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of processing of euphausiids, in particular to a shipborne Antarctic krill grading device. BACKGROUND

[0002] Antarctic krill, also known as large euphausiids and Antarctic large euphausiids, belongs to the order of euphausiids and the family of euphausiids. The adult euphausiids are 5-6.5 cm long, and the maximum length is 9 cm. Females are slightly larger than males. The body is almost transparent with reddish-brown spots, and the dorsal fin is red. Juvenile euphausiids are grayish white. They have a hard calcified exoskeleton, a body divided into a cephalothorax and an abdomen, six pairs of thoracic legs, and a pair of antennae. The eyes are spherical, and the eye stalks, thoracic legs, and abdomen have bioluminescent organs that can periodically emit yellow-green "phosphorescence". They mainly live in the Southern Ocean south of 50°S, often densely packed, up to 10,000-30,000 per cubic meter, and their main diet is plankton. When food is scarce, they will shed their shells and shrink to survive. The spawning period is from January to March, and females can lay 6,000-10,000 eggs at a time and multiple times. It takes about two years to grow up. The Antarctic krill resource is huge, and the conservative estimate of reserves in 2021 is 650-1,000 million tons, known as the "sea vault";

[0003] However, most of the existing euphausiids need to be screened according to the size of the euphausiids before processing. The existing euphausiid screening equipment mostly uses single screen static screening, which is difficult to achieve accurate grading according to the size difference of euphausiids. At the same time, the structure of the traditional device is bulky, the grading process is dispersed, and it occupies a large amount of shipborne operation space, which is difficult to meet the needs of efficient and compact operation at sea. Therefore, we propose a shipborne Antarctic krill grading device. SUMMARY

[0004] One technical problem to be solved

[0005] In view of the deficiencies in the prior art, the present application provides a shipborne Antarctic krill grading device, which solves the problem that most of the existing euphausiids need to be screened according to the size of the euphausiids before processing. The existing euphausiid screening equipment mostly uses single screen static screening, which is difficult to achieve accurate grading according to the size difference of euphausiids. At the same time, the structure of the traditional device is bulky, the grading process is dispersed, and it occupies a large amount of shipborne operation space, which is difficult to meet the needs of efficient and compact operation at sea.

[0006] Two technical solutions

[0007] In order to achieve the above object, the present application is realized by the following technical scheme: A shipborne Antarctic krill grading device, comprising a receiving shell, a bottom plate and a screening and separating device, the bottom plate is arranged on the lower surface of the receiving shell, the screening and separating device is arranged in the inner wall of the receiving shell, the screening and separating device comprises a frame, the frame is arranged in the inner wall of the receiving shell, one end of the frame is fixedly connected with an outer net, the end of the outer net away from the frame is fixedly connected with a sealing ring, the inner wall of the outer net is provided with a middle net, the inner wall of the middle net is provided with an inner net, both ends of the middle net and the inner net are fixedly connected with the frame and the sealing ring, the surface of the inner net and the middle net is provided with a screen hole, the screen hole diameter of the surface of the middle net is smaller than that of the surface of the inner net, the surface of the outer net is provided with a water inlet, one end of the sealing ring is provided with a cover, the surface of the sealing ring is provided with a insertion hole, the cover is inserted into the insertion hole on the surface of the sealing ring, one end of the sealing ring is fixedly connected with a lead screw, the surface of the lead screw is threadedly connected with a knob, by arranging the screening and separating device, adopting a multi-stage centrifugal screening structure, utilizing the aperture gradient cooperation of the inner net, the middle net and the outer net and the centrifugal force, realizing the three-stage accurate separation of krill, significantly improving the grading efficiency and accuracy compared with the traditional screening method, the integrated rotary screening design is compact in structure, small in space occupation, suitable for the limited working environment of shipborne, and meets the demand of offshore efficient grading operation.

[0008] Preferably, a hole one is arranged in the center of the cover, the lead screw is inserted into the hole one on the surface of the cover, the knob is in contact with the cover, the two ends of the cover are fixedly connected with a connecting sleeve, by arranging the cover, after pouring the salvaged krill into the inner net, the cooperation of the lead screw and the knob fixes it on the sealing ring, which can prevent the krill from splashing or leaking out during the screening process, ensures that the separation operation is carried out in a closed environment, and reduces material loss.

[0009] Preferably, the two ends of the receiving shell are rotatably connected with a cylinder, a square groove is arranged on one side of the cylinder close to the connecting sleeve, a rectangular rod is slidably connected with the inner wall of the square groove on one side of the cylinder, a plug rod is fixedly connected with the surface of the rectangular rod, a limiting rod is fixedly connected with one side of the plug rod close to the connecting sleeve, a hole two is arranged on one side of the connecting sleeve close to the limiting rod, the plug rod is inserted into the limiting rod and the connecting sleeve, by arranging the plug rod, when the motor drives the cylinder to rotate, the plug rod receives the rotating force through the linkage with the rectangular rod and accurately transmits it to the connecting sleeve, thereby driving the frame and the sealing ring to rotate, so that the centrifugal separation process can be realized.

[0010] Preferably, one end of the receiving shell is fixedly connected with a motor, and the driving end of the motor penetrates the receiving shell and is fixedly connected with the cylinder. By arranging the motor, a power source is provided for the whole screening and separating device. After the motor is started, the cylinder is driven to rotate, and then the rectangular rod connected with the cylinder and the inserting rod are synchronously rotated. The inserting rod transmits the rotating force to the connecting sleeve, so that the frame and the sealing ring are rotated. In the rotating process, the centrifugal force generated by rotation is utilized to push the phosphorus shrimps of different body types through the screen holes of the inner net, the middle net and the outer net to realize grading and separation. It is the core power component for ensuring that the centrifugal screening structure can effectively operate and complete the three-stage accurate separation of phosphorus shrimps.

[0011] Preferably, the surface of the rectangular rod is sleeved with a spring, and the two ends of the spring are fixedly connected with the cylinder and the inserting rod respectively. By arranging the spring, when the inserting rod is pressed, the spring is extruded to store elastic potential energy. At this time, after the connecting sleeve is aligned with the inserting rod, the inserting rod is released. The spring releases the potential energy to generate elastic force, which pushes the inserting rod to drive the limiting rod to accurately insert into the connecting sleeve, realizes the mechanical engagement of the power transmission structure, and ensures that the rotating force driven by the motor can be stably transmitted to the connecting sleeve and the frame through the inserting rod.

[0012] Preferably, the upper surface of the bottom plate is provided with a dredging device, the dredging device comprises a spliced plate, the spliced plate is fixedly connected with the bottom plate, the lower surface of the receiving shell is fixedly connected with a rotating rod, the rotating rod is rotatably connected with the spliced plate, one side of the bottom plate is fixedly connected with an assembly frame, the surface of the assembly frame is rotatably connected with an air cylinder, one end of the receiving shell is fixedly connected with a clamping block, and the driving end of the air cylinder is rotatably connected with the clamping block. By arranging the dredging device, the phosphorus shrimps in the screen are uniformly distributed by mechanical linkage, which effectively reduces the accumulation phenomenon. This not only reduces the problems of decreased screening efficiency and uneven grading caused by local accumulation of phosphorus shrimps, but also prevents local overload and blockage of the screen, and ensures smooth operation of the screen.

[0013] Preferably, the upper surface of the bottom plate is provided with a sliding hole, the inner wall of the sliding hole on the surface of the bottom plate is slidably connected with a sleeve rod, the upper surface of the sleeve rod is fixedly connected with a guard rod, and the surface of the sleeve rod is sleeved with a folding air bag, and the lower surface of the folding air bag is fixedly connected with the bottom plate. By arranging the folding air bag, when the guard rod is extruded downward by the inclined receiving shell, the folding air bag is compressed to produce elastic deformation. The folding air bag absorbs the impact force of the downward movement of the guard rod by folding and shrinking itself, reduces the damage caused by rigid collision, and at the same time, the reaction force generated during the shrinking process can assist the guard rod to reset. When the guard rod abuts against the pressure sensor, the compression state of the folding air bag can ensure stable transmission of the pressure signal, so that the air cylinder accurately receives the feedback and controls the reciprocating movement of the receiving shell, thereby ensuring the stable operation of the dredging device for shaking the screen and reducing the accumulation of phosphorus shrimps.

[0014] Preferably, the upper surface of the bottom plate is fixedly connected with a pressure sensor, the pressure sensor is located directly below the guard rod, the contraction pressure sensor is electrically connected with the air cylinder, by arranging the pressure sensor, when the receiving shell inclines and abuts against the guard rod, the guard rod slides downward to extrude the folding air bag and contact the pressure sensor, the sensor receives the pressure signal to control the air cylinder to contract, so that the receiving shell resets, through the pressure feedback mechanism, the automatic control of the air cylinder driving the receiving shell to reciprocate is realized, the uniform distribution of the phosphorus shrimps in the screen is ensured, the accumulation is avoided, and the continuous and effective work of the dredging device is ensured.

[0015] Preferably, the surface of the bottom plate is provided with a flushing device, the flushing device comprises a portal frame, the portal frame is fixedly connected with the bottom plate, the upper surface of the portal frame is fixedly connected with a spraying sleeve, the spraying sleeve is hollow, one end of the bottom plate is fixedly connected with a water tank, the inner wall of the water tank is fixedly connected with a water pump, one end of the spraying sleeve is fixedly connected with a water pipe, the end of the water pipe away from the spraying sleeve is fixedly connected with the water outlet end of the water pump, by arranging the flushing device, the dual functions of efficient anti-blocking and water resource recycling are realized, in the process of phosphorus shrimp screening, the water pump drives the water flow through the water pipe, the spraying sleeve and the spraying port, and the outer net and the inner net and the middle net are directionally flushed, the phosphorus shrimps and the mucus adhered to the screen can be quickly flushed off, the blocking of the screen holes caused by material accumulation is reduced, and the classification efficiency and accuracy are ensured.

[0016] Preferably, the two ends of the water pipe are respectively communicated with the spraying sleeve and the water pump, one end of the receiving shell close to the water tank is fixedly connected with a discharge pipe, the lower surface of the spraying sleeve is provided with a spraying port, by arranging the water pump, in the process of phosphorus shrimp screening, the water flow is driven to enter the spraying sleeve through the water pipe, and then is discharged through the spraying port and sprayed on the surface of the outer net, the water flow enters the inside through the water inlet of the outer net, and the phosphorus shrimps adhered to the middle net and the inner net are flushed off, the screen is prevented from being blocked due to phosphorus shrimp mucus or accumulation, and at the same time, the water flow after flushing drops in the receiving shell, and when the receiving shell reciprocates driven by the air cylinder, the water flow is returned to the water tank through the discharge pipe, the water flow recycling is realized, the flushing effect is ensured, and the water resource utilization rate is improved.

[0017] In summary, the technical effects and advantages of the present application are as follows:

[0018] 1. In the present application, by setting the screening separation device, the salvaged euphausia is poured into the inner net, then the cover and the sealing ring are set, at this time the lead screw is inserted into the cover, by rotating the knob, the knob cooperates with the lead screw to fix the cover on the sealing ring, then press the plug rod, align the connecting sleeve with the plug rod, then loosen the plug rod, the spring loses the restraint and generates elastic force to extrude the plug rod to drive the limiting rod into the connecting sleeve, then start the motor, the motor drives the cylinder to rotate, the cylinder rotates at the same time to drive the rectangular rod and the plug rod to rotate, the plug rod transmits the rotary force to the connecting sleeve, then the frame and the sealing ring rotate, in the process of rotating, the centrifugal force generated by rotation separates the euphausia with large and small body types through the screen hole of the inner net, only large euphausia is reserved in the inner net, small euphausia enters the middle net, since the screen hole of the middle net is smaller than that of the inner net, in the process of continuous rotation, the euphausia in the middle net is screened and separated for the second time, euphausia with medium body type is reserved in the middle net, smaller euphausia is separated to the outer net, when the separation is completed, pull the plug rod to drive the limiting rod to separate from the connecting sleeve, the frame can be removed, then rotate the knob to separate from the lead screw, then pull the cover to open the sealing ring, the separated euphausia can be taken out, by setting the screening separation device, adopting multi-stage centrifugal screening structure, using the aperture gradient of the inner net, the middle net and the outer net cooperates with the centrifugal force, three-stage accurate separation of euphausia is realized, compared with the traditional screening method, the grading efficiency and accuracy are significantly improved, the integrated rotary screening design is compact in structure, small in space occupation, suitable for limited operation environment of shipborne, and meets the demand of offshore efficient grading operation.

[0019] 2. In the present application, by setting the dredging device, when in use, the air cylinder is started, the driving end of the air cylinder continuously stretches and contracts, the supporting shell is extruded when stretching and contracting, the rotating rod rotates, at this time the supporting shell tilts to the direction of the guard rod, when the supporting shell abuts against the guard rod, the guard rod is stressed and cooperates with the sleeve rod to slide downward, the guard rod extrudes the folding air bag when moving downward, the folding air bag is folded and shrinks, until the guard rod abuts against the pressure sensor, the pressure sensor receives the pressure signal and immediately controls the air cylinder to contract to pull back the supporting shell, after the air cylinder pulls back the supporting shell to reset, the folding air bag loses the restraint and quickly expands to reset the guard rod, the equipment reciprocates to shake the supporting shell, so that the euphausia in the screen is evenly distributed to reduce accumulation, by setting the dredging device, the mechanical linkage is used to make the euphausia in the screen evenly distributed, effectively reducing the accumulation phenomenon, which not only reduces the problem of screening efficiency decline and uneven grading caused by local accumulation of euphausia, but also prevents local overload and blockage of the screen, and ensures the smoothness of the screen.

[0020] 3、The present application, by setting the flushing device, in the process of screening of krill, water pump driven water through the water pipe into the spray set, then through the spray outlet, and sprayed on the outer net, through the water inlet on the surface of the outer net into the internal will be stuck in the middle net and the inner net of krill washed off to prevent sticking blockage, then the water droplets in the receiving shell, when the cylinder drive receiving shell reciprocating shaking through the discharge pipe back to the water tank, by setting the flushing device, realized the dual function of high efficiency anti-clogging and water resources recycling, in the process of screening of krill, water pump drive water through the water pipe, spray set and spray outlet, directional flushing outer net and inner net, middle net, can quickly wash off the krill and mucus sticking on the screen, reduce the material accumulation caused by screen hole blockage, ensure the efficiency and accuracy of grading. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is the overall structure schematic diagram of the shipborne antarctic krill grading device of the application;

[0022] Figure 2 It is the outer net structure schematic diagram of the shipborne antarctic krill grading device of the application;

[0023] Figure 3 It is the screening and separating device part structure schematic diagram of the shipborne antarctic krill grading device of the application;

[0024] Figure 4 It is the plug rod structure schematic diagram of the shipborne antarctic krill grading device of the application; Figure 3 It is the enlarged structure schematic diagram of A of the shipborne antarctic krill grading device of the application;

[0025] Figure 5 It is the plug rod structure schematic diagram of the shipborne antarctic krill grading device of the application;

[0026] Figure 6 It is the dredging device structure schematic diagram of the shipborne antarctic krill grading device of the application;

[0027] Figure 7 It is the flushing device structure schematic diagram of the shipborne antarctic krill grading device of the application;

[0028] Figure 8 It is the bottom structure schematic diagram of the shipborne antarctic krill grading device of the application.

[0029] In the figure: 1, receiving shell; 2, bottom plate; 3, screening and separating device; 31, outer net; 32, middle net; 33, inner net; 34, frame; 35, sealing ring; 36, cover; 37, connecting sleeve; 38, lead screw; 39, knob; 310, insertion rod; 311, limiting rod; 312, rectangular rod; 313, spring; 314, motor; 315, cylinder; 4, dredging device; 41, air cylinder; 42, clamping block; 43, assembly frame; 44, splicing plate; 45, rotating rod; 46, guard rod; 47, folding air bag; 48, sleeve rod; 49, pressure sensor; 5, flushing device; 51, gantry frame; 52, spraying sleeve; 53, water pipe; 54, water tank; 55, water pump; 56, discharge pipe; 57, spraying port. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0031] Reference Figures 1-8 The shipborne Antarctic krill grading device shown in the figure comprises a receiving shell 1, a bottom plate 2 and a screening and separating device 3. The bottom plate 2 is arranged on the lower surface of the receiving shell 1, and the screening and separating device 3 is arranged in the inner wall of the receiving shell 1. The screening and separating device 3 comprises a frame 34 arranged in the inner wall of the receiving shell 1. One end of the frame 34 is fixedly connected with an outer net 31. The end of the outer net 31 away from the frame 34 is fixedly connected with a sealing ring 35. The inner wall of the outer net 31 is provided with a middle net 32. The inner wall of the middle net 32 is provided with an inner net 33. The two ends of the middle net 32 and the inner net 33 are fixedly connected with the frame 34 and the sealing ring 35 respectively. The surface of the inner net 33 and the surface of the middle net 32 are both provided with screen holes. The screen holes on the surface of the middle net 32 are smaller in diameter than the screen holes on the surface of the inner net 33. The surface of the outer net 31 is provided with a water inlet. One end of the sealing ring 35 is provided with a cover 36. The surface of the sealing ring 35 is provided with a insertion hole. The cover 36 is inserted into the insertion hole on the surface of the sealing ring 35. One end of the sealing ring 35 is fixedly connected with a lead screw 38. The surface of the lead screw 38 is threadedly connected with a knob 39. By arranging the screening and separating device 3, a multi-stage centrifugal screening structure is adopted. The aperture gradient of the inner net 33, the middle net 32 and the outer net 31 is matched with centrifugal force to realize three-stage accurate separation of krill. The integrated rotary screening design significantly improves the grading efficiency and accuracy compared with the traditional screening method. The structure is compact and occupies small space, which is suitable for limited working environment on ships and meets the demand for efficient grading operation at sea.

[0032] The center of the cover 36 is provided with a hole one, the screw rod 38 is inserted with the hole one on the surface of the cover 36, the knob 39 is in contact with the cover 36, the cover 36 is fixedly connected with the connecting sleeve 37 at both ends of the frame 34, by setting the cover 36, after the salvaged brine shrimps are poured into the inner net 33, the cooperation of the screw rod 38 and the knob 39 fixes it on the sealing ring 35, which can prevent the brine shrimps from splashing or leaking out during the screening process, ensure that the separation operation is carried out in a closed environment, and reduce material loss.

[0033] The two ends of the receiving shell 1 are rotatably connected with the cylinders 315, the side close to the connecting sleeve 37 of the cylinder 315 is provided with a square groove, the inner wall of the square groove on one side of the cylinder 315 is slidably connected with the rectangular rod 312, the surface of the rectangular rod 312 is fixedly connected with the inserting rod 310, the side close to the connecting sleeve 37 of the inserting rod 310 is fixedly connected with the limiting rod 311, the side close to the limiting rod 311 of the connecting sleeve 37 is provided with a hole two, the inserting rod 310 is inserted with the limiting rod 311 and the connecting sleeve 37, by setting the inserting rod 310, when the motor 314 drives the cylinder 315 to rotate, the inserting rod 310 receives the rotating force through the linkage with the rectangular rod 312 and accurately transmits it to the connecting sleeve 37, and then drives the frame 34 and the sealing ring 35 to rotate, so that the centrifugal separation process can be realized.

[0034] The one end of the receiving shell 1 is fixedly connected with the motor 314, the driving end of the motor 314 penetrates the receiving shell 1 and is fixedly connected with the cylinder 315, by setting the motor 314, a power source is provided for the whole screening and separating device 3, after the motor 314 is started, the cylinder 315 is driven to rotate, and then the rectangular rod 312 and the inserting rod 310 connected with the cylinder 315 are synchronously rotated, the rotating force is transmitted to the connecting sleeve 37 by the inserting rod 310, so that the frame 34 and the sealing ring 35 rotate, and in the rotating process, the centrifugal force generated by rotation is used to push the brine shrimps of different body types to pass through the screen holes of the inner net 33, the middle net 32 and the outer net 31 to realize grading and separation, which is the core power component for ensuring that the centrifugal screening structure can effectively operate and complete the three-stage accurate separation of the brine shrimps.

[0035] The surface of the rectangular rod 312 is sleeved with the spring 313, the two ends of the spring 313 are fixedly connected with the cylinder 315 and the inserting rod 310 respectively, by setting the spring 313, when the inserting rod 310 is pressed, the spring 313 is extruded to store elastic potential energy, at this time, the inserting rod 310 is released after the connecting sleeve 37 is aligned with the inserting rod 310, the spring 313 releases the potential energy to generate elastic force, the inserting rod 310 is pushed to drive the limiting rod 311 to accurately insert into the connecting sleeve 37, the mechanical engagement of the power transmission structure is realized, and it is ensured that the rotating force driven by the motor 314 can be stably transmitted to the connecting sleeve 37 and the frame 34 through the inserting rod 310.

[0036] The upper surface of the bottom plate 2 is provided with a dredging device 4, the dredging device 4 comprises a spliced plate 44, the spliced plate 44 is fixedly connected with the bottom plate 2, the lower surface of the receiving shell 1 is fixedly connected with a rotating rod 45, the rotating rod 45 is rotationally connected with the spliced plate 44, one side of the bottom plate 2 is fixedly connected with an assembly frame 43, the surface of the assembly frame 43 is rotationally connected with an air cylinder 41, one end of the receiving shell 1 is fixedly connected with a clamping block 42, the driving end of the air cylinder 41 is rotationally connected with the clamping block 42, by arranging the dredging device 4, the phosphorus shrimps in the screen are uniformly distributed by mechanical linkage, and the accumulation phenomenon is effectively reduced, which not only reduces the problems of screening efficiency reduction and uneven classification caused by local accumulation of phosphorus shrimps, but also prevents local overload and blockage of the screen, and ensures smoothness of the screen.

[0037] The upper surface of the bottom plate 2 is provided with a sliding hole, the inner wall of the sliding hole on the surface of the bottom plate 2 is slidably connected with a sleeve rod 48, the upper surface of the sleeve rod 48 is fixedly connected with a guard rod 46, the surface of the sleeve rod 48 is sleeved with a folding air bag 47, the lower surface of the folding air bag 47 is fixedly connected with the bottom plate 2, by arranging the folding air bag 47, when the guard rod 46 is pressed downwardly and slides by the receiving shell 1 being inclined, the folding air bag 47 is compressed to produce elastic deformation, the impact force of the guard rod 46 moving downwardly is absorbed by folding and shrinking of the folding air bag 47, damage of components caused by rigid collision is reduced, at the same time, the reaction force generated in the shrinking process of the folding air bag 47 can assist the guard rod 46 to reset, and when the guard rod 46 abuts against the pressure sensor 49, the compression state of the folding air bag 47 can ensure stable transmission of the pressure signal, so that the air cylinder 41 accurately receives feedback and controls the receiving shell 1 to reciprocate, thereby ensuring stable operation of the functions of the dredging device 4 of shaking the screen and reducing accumulation of phosphorus shrimps.

[0038] The upper surface of the bottom plate 2 is fixedly connected with a pressure sensor 49, the pressure sensor 49 is located directly below the guard rod 46, and the retraction pressure sensor 49 is electrically connected with the air cylinder 41, by arranging the pressure sensor 49, when the receiving shell 1 is inclined and abuts against the guard rod 46, the guard rod 46 slides downwardly and presses the folding air bag 47 and contacts the pressure sensor 49, after the sensor receives the pressure signal, the air cylinder 41 is controlled to retract, so that the receiving shell 1 resets, and the automatic control of the air cylinder 41 driving the receiving shell 1 to reciprocate is realized through the pressure feedback mechanism, so as to ensure uniform distribution of phosphorus shrimps in the screen, avoid accumulation, and ensure continuous and effective work of the dredging device 4.

[0039] The surface of the bottom plate 2 is provided with a flushing device 5, the flushing device 5 comprises a portal frame 51, the portal frame 51 is fixedly connected with the bottom plate 2, the upper surface of the portal frame 51 is fixedly connected with a spraying sleeve 52, the spraying sleeve 52 is hollow, one end of the bottom plate 2 is fixedly connected with a water tank 54, the inner wall of the water tank 54 is fixedly connected with a water pump 55, one end of the spraying sleeve 52 is fixedly connected with a water pipe 53, the end of the water pipe 53 away from the spraying sleeve 52 is fixedly connected with the water outlet end of the water pump 55, through the setting of the flushing device 5, the dual functions of efficient anti-blocking and water resource recycling are realized, in the process of brine shrimp screening, the water pump 55 drives the water flow through the water pipe 53, the spraying sleeve 52 and the spraying port 57, and the outer net 31, the inner net 33 and the middle net 32 are directionally flushed, the brine shrimp and mucus adhered to the screen can be quickly washed off, the blocking of the screen holes caused by material accumulation is reduced, and the classification efficiency and accuracy are ensured.

[0040] The two ends of the water pipe 53 are respectively communicated with the spraying sleeve 52 and the water pump 55, the receiving shell 1 is fixedly connected with a discharge pipe 56 close to one end of the water tank 54, the lower surface of the spraying sleeve 52 is provided with a spraying port 57, through the setting of the water pump 55, in the process of brine shrimp screening, the water flow is driven to enter the spraying sleeve 52 through the water pipe 53, and then is discharged through the spraying port 57 and sprayed on the surface of the outer net 31, the water flow enters the inside through the water inlet of the outer net 31, and the brine shrimp adhered to the middle net 32 and the inner net 33 is washed off, the blocking of the screen caused by brine shrimp mucus or accumulation is prevented, at the same time, the washed water flow drops in the receiving shell 1, and when the receiving shell 1 is driven to reciprocate by the air cylinder 41, the water flow is returned to the water tank 54 through the discharge pipe 56, the water flow recycling is realized, the water resource utilization rate is improved, the flushing effect is ensured, and the water resource utilization rate is improved.

[0041] The working principle of the present application is as follows: through the setting of the screening and separating device 3, the salvaged phosphorus shrimps are poured into the inner net 33, then the cover 36 is sleeved with the sealing ring 35, at this time the lead screw 38 is inserted into the cover 36, by rotating the knob 39, the knob 39 cooperates with the lead screw 38 to fix the cover 36 on the sealing ring 35, then press the inserting rod 310 to align the connecting sleeve 37 with the inserting rod 310, then release the inserting rod 310, the spring 313 loses the restraint and generates elastic force to extrude the inserting rod 310 to drive the limiting rod 311 to insert into the connecting sleeve 37, then start the motor 314, the motor 314 drives the cylinder 315 to rotate, the cylinder 315 rotates to drive the rectangular rod 312 and the inserting rod 310 to rotate, the inserting rod 310 transmits the rotating force to the connecting sleeve 37, then the frame 34 and the sealing ring 35 rotate, in the process of rotating, the centrifugal force generated by the rotation separates the phosphorus shrimps with large and small sizes through the screen holes of the inner net 33, only the large phosphorus shrimps are reserved in the inner net 33, the small phosphorus shrimps enter the middle net 32, because the screen hole of the middle net 32 is smaller than that of the inner net 33, in the continuous rotation, the phosphorus shrimps in the middle net 32 are screened and separated again, the phosphorus shrimps with medium size are reserved in the middle net 32, the smaller phosphorus shrimps are separated to the outer net 31, when the separation is completed, pull the inserting rod 310 to drive the limiting rod 311 to separate from the connecting sleeve 37, the frame 34 can be removed, and then rotate the knob 39 to separate from the lead screw 38, then pull the cover 36 to open the sealing ring 35, the separated phosphorus shrimps can be taken out, through the setting of the screening and separating device 3, the multi-stage centrifugal screening structure is adopted, the aperture gradient of the inner net 33, the middle net 32 and the outer net 31 cooperates with the centrifugal force, the three-stage accurate separation of the phosphorus shrimps is realized, the grading efficiency and accuracy are significantly improved compared with the traditional screening method, the integrated rotary screening design is compact in structure, small in space occupation, suitable for the limited operation environment of shipborne, and meets the demand of offshore efficient grading operation;

[0042] By setting the dredging device 4, when in use, the air cylinder 41 is started, the driving end of the air cylinder 41 continuously stretches and contracts, and the supporting shell 1 is extruded when stretching and contracting, the rotating rod 45 rotates, at this time the supporting shell 1 inclines to the direction of the guard rod 46, when the supporting shell 1 abuts against the guard rod 46, the guard rod 46 is forced to slide downward in cooperation with the sleeve rod 48, the guard rod 46 extrudes the folding air bag 47 when moving downward, the folding air bag 47 is folded and shrinks, until the guard rod 46 abuts against the pressure sensor 49, the pressure sensor 49 receives the pressure signal and immediately controls the air cylinder 41 to contract to pull back the supporting shell 1, after the air cylinder 41 pulls back the supporting shell 1 to reset, the folding air bag 47 loses the restraint and quickly expands to top back the guard rod 46 to reset, the device reciprocates to shake the supporting shell 1, so that the phosphorus shrimps in the screen are evenly distributed to reduce accumulation, by setting the dredging device 4, the mechanical linkage is used to make the phosphorus shrimps in the screen evenly distributed, which effectively reduces the accumulation, not only reduces the problem of screening efficiency decline and uneven grading caused by local accumulation of phosphorus shrimps, but also prevents local overload and blockage of the screen, and ensures the smoothness of the screen;

[0043] By setting the flushing device 5, in the process of screening of the brine shrimp, the water pump 55 drives the water flow through the water pipe 53 into the spray cover 52, and then through the spray port 57, and is sprayed on the outer net 31, and through the water inlet on the surface of the outer net 31 into the inside, the brine shrimp adhered to the middle net 32 and the inner net 33 is washed off to prevent adhesion and blockage, and then the water flow drops in the receiving shell 1, and when the air cylinder 41 drives the receiving shell 1 to reciprocate, it is reflowed to the water tank 54 through the discharge pipe 56. By setting the flushing device 5, the dual functions of efficient anti-blocking and water resource recycling are realized. In the process of screening of the brine shrimp, the water pump 55 drives the water flow through the water pipe 53, the spray cover 52 and the spray port 57, and directionally flushes the outer net 31 and the inner net 33 and the middle net 32, which can quickly wash off the brine shrimp and mucus adhered to the screen, reduce the blockage of the screen hole caused by material accumulation, and ensure the grading efficiency and accuracy.

[0044] The electrical components appearing in this document are all connected with the main controller and 220V mains, and the main controller can be a conventional known device such as a computer.

[0045] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for the purpose of limiting the present application, although the foregoing detailed description of the present application is made with reference to the foregoing embodiments, for those skilled in the art, it can still be modified to the technical solutions recorded in the foregoing embodiments, or equivalent replacement of some technical features, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application, should be included in the scope of protection of the present application.

Claims

1. A shipborne Antarctic krill grading device, comprising a receiving shell (1), a bottom plate (2), and a screening and separation device (3), characterized in that: The base plate (2) is disposed on the lower surface of the receiving shell (1), and the screening and separation device (3) is disposed in the inner wall of the receiving shell (1). The screening and separation device (3) includes a frame (34), which is disposed in the inner wall of the receiving shell (1). One end of the frame (34) is fixedly connected to an outer mesh (31), and the end of the outer mesh (31) away from the frame (34) is fixedly connected to a sealing ring (35). The inner wall of the outer mesh (31) is provided with a middle mesh (32), and the inner wall of the middle mesh (32) is provided with an inner mesh (33). The middle mesh (32) and the inner mesh (33) are connected together. The two ends of the outer mesh (31) are fixedly connected to the frame (34) and the sealing ring (35) respectively. The inner mesh (33) and the middle mesh (32) are both provided with screen holes. The screen holes on the surface of the middle mesh (32) are smaller in diameter than the screen holes on the surface of the inner mesh (33). The surface of the outer mesh (31) is provided with a water inlet. One end of the sealing ring (35) is provided with a cover (36). The surface of the sealing ring (35) is provided with a insertion hole. The cover (36) is inserted into the insertion hole on the surface of the sealing ring (35). One end of the sealing ring (35) is fixedly connected with a screw rod (38). The surface of the screw rod (38) is threaded. A knob (39) is connected to the bottom plate (2). A dredging device (4) is provided on the upper surface of the bottom plate (2). The dredging device (4) includes a splicing plate (44). The splicing plate (44) is fixedly connected to the bottom plate (2). A rotating rod (45) is fixedly connected to the lower surface of the receiving shell (1). The rotating rod (45) is rotatably connected to the splicing plate (44). An assembly frame (43) is fixedly connected to one side of the bottom plate (2). A cylinder (41) is rotatably connected to the surface of the assembly frame (43). A locking block (42) is fixedly connected to one end of the receiving shell (1). The driving end of the cylinder (41) is connected to... The locking block (42) is rotatably connected. The upper surface of the base plate (2) is provided with a sliding hole. The inner wall of the sliding hole on the surface of the base plate (2) is slidably connected with a sleeve rod (48). The upper surface of the sleeve rod (48) is fixedly connected with a guard rod (46). The surface of the sleeve rod (48) is fitted with a folding airbag (47). The lower surface of the folding airbag (47) is fixedly connected to the base plate (2). The upper surface of the base plate (2) is fixedly connected with a pressure sensor (49). The pressure sensor (49) is located directly below the guard rod (46). The contraction pressure sensor (49) is electrically connected to the cylinder (41).

2. The shipborne Antarctic krill grading device according to claim 1, characterized in that: The center of the cover (36) has a hole, the lead screw (38) is inserted into the hole on the surface of the cover (36), the knob (39) contacts the cover (36), and the cover (36) and the frame (34) are both fixedly connected with connecting sleeves (37).

3. The shipborne Antarctic krill grading device according to claim 2, characterized in that: Both ends of the receiving shell (1) are rotatably connected to cylinders (315). A square groove is provided on the side of the cylinder (315) near the connecting sleeve (37). A rectangular rod (312) is slidably connected to the inner wall of the square groove on the side of the cylinder (315). An insert rod (310) is fixedly connected to the surface of the rectangular rod (312). A limiting rod (311) is fixedly connected to the side of the insert rod (310) near the connecting sleeve (37). A second hole is provided on the side of the connecting sleeve (37) near the limiting rod (311). The insert rod (310) is inserted into the limiting rod (311) and the connecting sleeve (37).

4. The shipborne Antarctic krill grading device according to claim 3, characterized in that: One end of the receiving shell (1) is fixedly connected to a motor (314), and the driving end of the motor (314) passes through the receiving shell (1) and is fixedly connected to the cylinder (315).

5. A shipborne Antarctic krill grading device according to claim 4, characterized in that: A spring (313) is fitted on the surface of the rectangular rod (312), and the two ends of the spring (313) are fixedly connected to the cylinder (315) and the insert rod (310) respectively.

6. The shipborne Antarctic krill grading device according to claim 1, characterized in that: A rinsing device (5) is provided on the surface of the base plate (2). The rinsing device (5) includes a gantry frame (51). The gantry frame (51) is fixedly connected to the base plate (2). A spray sleeve (52) is fixedly connected to the upper surface of the gantry frame (51). The spray sleeve (52) is hollow. A water tank (54) is fixedly connected to one end of the base plate (2). A water pump (55) is fixedly connected to the inner wall of the water tank (54). A water pipe (53) is fixedly connected to one end of the spray sleeve (52). The end of the water pipe (53) away from the spray sleeve (52) is fixedly connected to the outlet end of the water pump (55).

7. A shipborne Antarctic krill grading device according to claim 6, characterized in that: The two ends of the water pipe (53) are connected to the spray sleeve (52) and the water pump (55) respectively. The receiving shell (1) is fixedly connected to the discharge pipe (56) at one end near the water tank (54). The spray nozzle (57) is opened on the lower surface of the spray sleeve (52).

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