Collecting and separating assembly device for fish eggs and collecting method

[0047] Example 1:

[0048] See figure 1 , 2 , As shown in 5-11, a device for collecting and separating fish eggs includes:

[0049] Spawning pool 10, at least one egg retrieval pump 12 is suspended in the spawning pool 10 through a depth adjusting member 13; at least one egg retrieval platform 20 is provided on the side of the spawning pool 10,

[0050] The egg separation assembly 40 is arranged on the egg retrieval platform 20 and is connected to the egg retrieval pump 12 through the egg retrieval tube 11,

[0051] Wherein, the egg separating assembly 40 includes a cylindrical egg separating shell 49, the egg separating shell 49 is fixed on the egg picking stage 20 with the axis perpendicular to the horizontal plane, and the bottom of the egg separating shell 49 is cylindrical. The egg inlet 44 is provided in the center and is connected to the egg retrieval pump 12 through the egg retrieval tube 11. The circular cylinder at the bottom of the egg separation shell 49 is also connected with a sinking egg exit tube 42. The inner center of the egg separation shell 49 is provided The buoyant ovule 41 and the other orifice of the buoyant ovum 41 extends through the ovum shell 49 to the outside of the ovum shell 49,

[0052] Wherein, the egg-separating shell 49 is provided with a drive substrate 47 that is coaxial with the cylindrical surface and is circular. The drive substrate 47 is arranged adjacent to a circular cylinder in the egg-separating shell 49, and the drive substrate 47 and the egg-separating shell The opposing surface of the other circular cylindrical surface of the body 49 is provided with an egg-separating partition 410, the partition 410 is staggered and has an elliptical cross section, and the major and minor axes of the ellipse are a: b = 0.4 to 0.65:1, preferably It is 0.5:1.

[0053] The present invention uses the spawning pool 10 to lay eggs on the fish in the pool to ensure that they lay eggs, and the spawning pump 12 is used to retrieve the eggs. In order to meet the needs of collecting fish eggs at different depths in the pool, 13 depth adjustments are used to adjust their lifting The depth of the egg retrieval pump 12 in the water is used to retrieve eggs at different depths in the water. The depth adjusting member 13 refers to the rope body. The egg retrieval pump 12 uses a Venturi pump to use a relatively low water flow speed to retrieve eggs. Eggs, to reduce the damage to the egg body, the obtained fish eggs are transported to the egg separation assembly 40 with a certain level through the oviduct 11, and enter the egg separation shell 49 through the egg separation partition 410. The more turbulent and fast fluid flow is split, and the fluid flow direction inside the egg splitting shell 49 is corrected by rotating the egg splitting partition 410 to eliminate the turbulence of the fluid entering the split shell 49 and reduce the fluid flow rate to form a spiral centrifugation The outer ring of the staggered egg-separating partition 410 can play a secondary diversion effect on the fluid diverted by the inner ring, which is conducive to the formation of multiple centrifugal fluids to separate the eggs so that the heavy heavy eggs will be centrifuged The fluid flows to the outer ring of the egg separation partition 410 and is discharged from the sinking oviduct 42. The ovum separation partition 410 with an elliptical cross section can effectively avoid impact damage to the egg, and the ratio of the long and short axis of the ellipse is specifically designed to limit the separation. The egg partition 410 is formed into a flat shape to avoid contact with the egg and to ensure a better drainage effect. The fluid is guided to quickly pass through the egg partition 410 to achieve rapid separation, while the lighter, floating eggs gather in the centrifugal vortex. The center is discharged by the buoyant emergent tube 41, and the eggs that have not been discharged during the egg separation process move circularly in the egg separation shell 49 until the egg separation work is completed. The present invention realizes the use of centrifugal force to reduce the impact of water flow on the eggs. The effect of the body ups and downs speed and improves the separation efficiency of fish eggs, the application of the device of the present invention to the fish eggs separation in the spawning tank can greatly reduce the workload of artificial spawning and realize efficient and high-quality spawning.

[0054] The inner diameter of the encircling ring formed by the egg separation baffle 410 is larger than the diameter of the egg inlet 44, and the outer diameter of the encircling ring formed is smaller than the inner diameter of the egg separation shell 49 and the remaining gap is larger than the maximum diameter of the separated egg body. The egg separation drive 48 is used to drive the drive substrate 47 to rotate. The drive shaft of the egg separation drive 48 extends into the egg separation housing 49 and the end of the egg separation housing 49 is hollow and the floating egg tube 41 is arranged in the middle. The egg separation housing 49 The outer wall of the external drive shaft is connected to an annular sleeve body with an annular cavity through a bearing ring. The inner cavity surface of the annular sleeve body is attached to the outer wall of the connected drive shaft, and a flow hole is opened at the joint, which is connected to a length of float. One port of the oviduct 41, the other port is provided on the drive shaft of the oviposition driving member 48 in the oviposition shell 49, and the outer wall of the annular sleeve is connected to another section of the oviduct 41, which is the section of oviposition. The nozzle of the tube 41 passes into the annular sleeve body, and the annular sleeve body and the connecting bearing are the rotating connecting pieces connecting the driving shaft and the floating egg tube 41. The egg separation drive 48 drives the egg separation baffle 410 to rotate to correct the flow direction of the fluid inside the egg separation shell 49 to form a low-speed spiral water flow to eliminate the turbulence of the fluid entering the split shell 49 and reduce the fluid flow rate to realize the split plate 410 It is used to reduce the influence of water flow on the speed of the ups and downs of the egg. The egg is guided by the spiral current to separate the sinking egg and the floating egg quickly. The speed of the egg separation drive 48 should not be too high to prevent high-speed rotation of the egg separation The partition 410 causes damage to the egg body and causes the fluid flow rate in the egg separation shell 49 to be too fast, which affects the ups and downs of the egg body. The speed of the egg separation drive 48 is generally controlled below 20 revolutions per minute to form the egg separation partition 410 The inner diameter of the encircling circle is larger than the egg inlet 44 to facilitate entry of the fluid directly in the middle of the egg separation shell 49 to prevent the fluid containing fish eggs from entering the egg separation shell 49 and the egg separation partition 410 to produce impact, to avoid impact damage to the eggs and reduce the eggs Survival rate protects the eggs. At the same time, the outer diameter of the formed circle is smaller than the inner diameter of the spawning shell 49 and the remaining gap is greater than the maximum diameter of the separated egg body. The gap is too small to cause the fish eggs to fail to pass through the gap. The fish eggs are damaged during the rotation of the spawning partition 410, and can form a separation zone for sinking and floating fish eggs.

[0055] A strip-shaped restrictor 46 is fixed on the inner wall of the egg dividing shell 49. The restrictor 46 is arranged parallel to the axis of the egg dividing shell 49. The surface of the restrictor 46 has a 1/4 arc-shaped surface and is tangent to the arc-shaped surface. The set slope surface is composed of the arc-shaped surface and the rotation direction of the driving substrate 47 is opposite to the rotation direction, and the slope surface is set on the back side of the arc-shaped surface. The cross section of the restrictor 46 is composed of a quarter circular cross section and a triangular cross section, and the triangular cross section is a right-angled triangular cross section. During the process of driving the fluid flow inside the egg separating shell 49, the egg separating partition 410 may affect the sedimentation speed of the fish eggs inside the egg separating shell 49 or disturb the settlement due to the fluid flow. By setting it on the inner wall of the egg separating shell 49 The restrictor 46 is used to reduce the drag force of the inner wall of the egg separation shell 49 on the fish eggs by the water flow. The 1/4 arc-shaped surface of the restrictor 46 makes the egg separation partition 410 drive The spiral centrifugal vortex water flow formed by the split shell 49 needs to flow through its surface to increase the length of the streamline to consume the flow energy and make it form a convex arc flow toward the center of the egg split shell 49, hindering the flow of fluid to prevent the flow of water to the fish. The drag force of the eggs can increase the speed and effect of the centrifugal separation of the eggs, and the water flowing through the arc-shaped surface is guided along the slope surface to flow along the inner wall of the egg separation shell 49 to further reduce the lower flow restriction Drag force of water flow near block 46.

[0056] The collection and separation assembly device also includes at least two sets of egg sorting assemblies 30. The egg sorting assemblies 30 are arranged on the side of the spawning pond 10, and the egg sorting assemblies 30 are respectively connected to the floating ovule 41 of the egg sorting assembly 40. It is connected to the sinking oviduct 42. The egg body sorting component 30 is used to count the total amount of the separated floating eggs and sinking eggs and to screen out the dead eggs in the eggs, which is beneficial to improve the viability of the remaining active eggs and realize the statistics of the spawning pool The proportion of dead eggs in the fish eggs, and at the same time, when the device of the present invention is applied in the spawning pool, the dead eggs can be separated quickly to increase the hatching rate and reduce the waste of hatching resources.

[0057] The egg sorting assembly 30 includes:

[0058] The sorting identification base 33, the floating emergence tube 41 and the sinking emergence tube 42 vertically penetrate the sorting identification base 33, and the side of the sorting identification base 33 is connected to the light-emitting base 36,

[0059] The three-way solenoid valve 32 is connected to the floating egg exit tube 41 and the sinking egg exit tube 42 through the sorting identification base 33, and the other two ports are respectively connected to the sorting first tube 33, and the two sorting first tube bodies 33 respectively connect the second sorting container 35 and the first sorting container 34,

[0060] The control unit 60 is connected to the sorting identification base 33 to determine the activity of the ovum after the sorting identification base 33 and controls the three-way solenoid valve 32 connected to the control unit 60 according to the judgment result to discharge the ovum to the second sorting container 35 or sort the first container 34. Count the number of fish eggs collected in the sorting identification base 33 by counting the number of fish eggs. After the fish eggs die, the light transmittance will decrease. By irradiating the fish eggs with light, judge whether the fish eggs are based on the light transmission effect. Dead, and control the opening of the three-way solenoid valve 32 according to the judgment result to send the judged fish eggs into its corresponding container to complete the screening of the dead eggs in the fish eggs, and the control unit 60 can record and screen out the dead eggs According to the number of dead eggs and the total number of fish eggs, the content of dead eggs in the fish eggs is judged, which is beneficial to improve the viability of the remaining active eggs and realize the statistics of the proportion of dead eggs in the fish eggs in the spawning pool. Fish eggs and water are always fed into the container. Therefore, in order to avoid excessive water in the sorting container, the discharge regulating pump 50 and the discharge flexible filter tube 51 are used to drain the excess water in the sorting container to avoid the discharge of fish eggs. , A filter cloth can be set at the port of the draining flexible filter tube 51 to avoid accidental discharge of fish eggs.

[0061] The sorting identification base 31 is provided with a light transmission hole 63 that is perpendicular to the axis of the floating emergence tube 41 and the sinking emergence tube 42, and a light transmission hole on the side of the floating emergence tube 41 and the sinking emergence tube 42 The light signal receiving part 61 is installed in the 63, the other side is connected to the hollow light emitting base 36, the light emitting base 36 is provided with an optical signal transmitter 64 that transmits the light signal to the light signal receiving part 61 in a straight line, and the sorting and identifying base 31 There is also a counter 62 used to count the sorting and identifying bases 31, and the light signal receiver 61 and the counter 62 are respectively connected to the control unit 60. The light transmission hole 63 opened on the sorting identification base 31 facilitates the light signal transmitter 64 to transmit the light signal to the surface of the fish eggs passing by, and the light signal receiver 61 receives the light signal to determine the fish according to the intensity of the received light signal. The light transmittance of the eggs is used to identify the activity of the eggs, and according to the judgment results to screen the dead eggs in the eggs, distinguish the active eggs from the dead eggs, and realize the statistics of the proportion of dead eggs in the eggs in the spawning pool.

[0062] A selector 70 is placed in the floating emergence tube 41 and the sinking emergence tube 42 above the sorting identification base member 31. The selector 70 includes a columnar shape coaxial with the floating emergence tube 41 and the sinking emergence tube 42 The connecting base 73 is connected with at least two disc-shaped sorting discs 71. The outer wall of the sorting disc 71 is connected to the inner wall of the floating egg-extracting tube 41 and the sinking egg-extracting tube 42 through a bearing. The upper axis of the disc 71 is provided with a sorting hole 72 through which the egg can pass, and the positions of the sorting holes 72 on the adjacent sorting disc 71 are staggered. Only one suspension hole 72 is opened on the sorting disc 71 closest to the sorting identification base part 31. In order to prevent too many fish eggs in the fluid from passing through at one time and cause identification problems, the floating egg tube 41 and sinking A selector 70 is placed in the emergence tube 42 to limit the number of fish eggs in circulation, and to keep the eggs in a sorting manner. The floating emergence tubes 41 and the sinking emergence tubes 42 in the base member 31 are identified by sorting to ensure the accuracy and accuracy of identification. Counting accuracy.

[0063] A cylindrical groove body is provided in the middle of the connecting base member 73, and the surface of the connecting base member 73 is provided with an elongated first through groove 74 communicating with the cylindrical groove body. The cylindrical groove body is provided with a slow flow member 80, and the slow flow member 80 includes and The base shaft 81 is connected with the coaxial axis of the base 73, and the base shaft 81 is coaxially connected with the disc-shaped assembly substrate 83. The assembly substrate 83 is connected to the inner wall of the cylindrical groove through a bearing. The assembly substrate 83 is provided with a shunt on and/or on the lower surface The plate 82 and the shunt plate 82 are arranged around the base shaft 81. The flow damper 80 is provided in the connecting base 73 to use the water flowing along the connecting base 73 to enter the first through groove 74 to impact the assembly substrate 83 and contact the surface of the assembly substrate 83 to contact the connecting base 73. The horizontal outflow from the axis in the vertical direction forms a right-angle confluence with the normal flowing water body. In this process, the splitter plate 82 diverts the outflow water body so that it merges with the normal flowing water body to further improve the confluence effect and slow down the flow velocity of the downward flowing water body to affect The flow rate of water can reduce the water velocity within a certain height range to slow down the flow velocity of fish eggs between the two sorting discs 71 and change the flow trajectory from linear flow to spiral linear flow to reduce downward The flowing fish eggs collide to protect the fish eggs.

[0064] Example 2:

[0065] See Picture 12 As shown, the method of collecting fish eggs by adopting the fish egg collection and separation component device is as follows:

[0066] -Collect fish eggs in the pond with the egg retrieval pump 12;

[0067] -Separate sinking fish eggs and floating fish eggs through the spawning component 40 and using the ups and downs of the fish eggs;

[0068] -Send the separated fish eggs vertically downward into the storage container with a transparent tube, and use a counter to count the number of fish eggs during the feeding process;

[0069] -The light signal transmitter 64 is used to illuminate the fish eggs moving downward from the transparent tube, and the light signal receiver 61 receives the light signal of the irradiated fish eggs and feeds the acquired data back to the control unit 50 to determine the activity of the fish eggs. The control unit 50 calculates the eggs The light transmittance of the body is used to judge the activity of the egg body, and the three-way solenoid valve 32 is controlled to send the fish eggs into the designated storage container according to the judgment result.

[0070] The formula for calculating the light transmittance of the egg is as follows:

[0071]

[0072] In the formula, T is the light transmittance (%), W is the offset light filter (3.5Kh); S λ Is the luminous flux shining on the egg; V λ Is the relative spectral sensitivity of photopic vision; τ λ Monochromatic transmittance; d λ Is the wavelength interval (nm).

[0073] The present invention counts the number of fish eggs collected by counting fish eggs. By irradiating the fish eggs with light, the light signal needs to pass through the transparent floating emergence tube 41 and the sinking emergence tube 42 with light deviation. , In the formula, the offset light filter method is introduced to eliminate the light transmission error caused by the floating emergence tube 41 and the sinking emergence tube 42. The light transmittance calculated by each fish egg is different, set When the light transmittance is lower than 20%, it is judged as a dead egg. According to the light transmission effect, it is judged whether the fish egg is dead. The light transmittance judgment value can be adjusted according to different usage conditions, and the opening of the three-way solenoid valve 32 is controlled according to the judgment result. The judging fish eggs are sent into the corresponding container to complete the screening of the dead eggs in the fish eggs, and the control unit 60 can record the number of dead eggs sieved out, and judge the fish eggs according to the number of dead eggs and the total number of eggs The content of dead eggs in the spawning pond is beneficial to improve the viability of the remaining active eggs and realize the statistics of the proportion of dead eggs in the fish eggs in the spawning pool.

[0074] Example 3:

[0075] Roe separation test:

[0076] Set up separation group 1, separation group 2, and separation group 3 to separate the fish eggs containing sinking eggs and floating eggs. Each group of separated fish eggs has a total of 10,000 eggs, and each of the sinking eggs and floating eggs is 5000. Separation groups 1-3 all use the egg separation component 40 in Example 1 to separate fish eggs, and the separation group 1 uses such figure 2 Separation partition 410 in the separation group 2, use such as image 3 Terminal separator 410, separation group 3 use such as image 3 In the egg partition 410.

[0077] The egg separation drive 48 uses a speed of 20r/min (flow rate of 0.1±0.05m/s) to separate the eggs, and the statistics of the time taken for each separated component are as follows Figure 13 The accuracy rate of egg separation in each separation group is calculated. Specifically, the accuracy rate of separation group 1 is 98%, the accuracy rate of separation group 2 is 97%, and the accuracy rate of separation group 3 is 95%. The test results show that the selection section The oval-shaped egg separation partition 410 can effectively improve the egg separation efficiency and the egg separation quality. The separation group 1 takes only 33 eggs for 10,000 eggs, and the egg separation efficiency is high.