A quick freezing device for abalone production and processing

Abstract

The application discloses a kind of quick freezing device for abalone production and processing, it is related to frozen technology field, including outer frame, conveying assembly, cooling assembly and precooling component, the quick freezing of abalone is completed by conveying assembly, cooling assembly and precooling component cooperation.This application is by the annular cooling pipe and nozzle being provided with liquid nitrogen is sprayed to the abalone on conveying assembly conveying, so that liquid nitrogen is quickly frozen to abalone, and by cold air circulation mechanism is stirred to liquid nitrogen, it is ensured that liquid nitrogen is fully contacted with abalone from multiple directions and is frozen;By being provided with connecting pipe, annular cooling pipe end and precooling pipe are communicated, so that residual liquid nitrogen in annular cooling pipe is transported to precooling area, so that residual liquid nitrogen is sprayed from jet groove to abalone just into outer frame by precooling pipe in it, so that residual liquid nitrogen is pre-frozen to abalone, and the freezing speed of abalone is accelerated.

Description

TECHNICAL FIELD

[0001] The application relates to the field of refrigeration technology, and particularly relates to a quick freezing device for abalone production and processing. BACKGROUND

[0002] Abalone is also known as stone fish and soft-bodied animal, and is one of the world-famous marine eight treasures. Abalone is a marine shellfish with a thick shell and an ear-like shape. The abalone is oval in shape, with purple-red meat and yellow color, and has a luster. The surface of the abalone is covered with white frost. The abalone meat is tender and smooth, and has an extremely delicious taste, which cannot be compared with other seafood. The abalone has been regarded as the "crown of seafood delicacies" since ancient times. The abalone meat is high in nutritional value. The abalone meat contains rich globulin, and the protein content reaches 40%. The abalone meat also contains fat, sugar, inorganic salt, calcium, iron, iodine and more than 20 kinds of amino acids, and has a low cholesterol content.

[0003] For example, a patent with the publication number CN210399624U and the publication date of April 24, 2020 and the name of "abalone processing and production quick freezing equipment" is provided. The patent includes a quick freezing bin, a blowing device, a freezing unit, an operating device and a base in the quick freezing bin. The operating device includes an inclined table, which is hinged to the base through a first connecting rod. A conveying device is arranged on the opening of the inclined table. The bottom of the inclined table is also provided with a first hinge part, which is connected to an eccentric wheel through a third connecting rod on a transmission device. A water inlet pipe is provided with a water inlet nozzle. The patent sets the operating device, the blowing device, the freezing unit and the water inlet pipe in the quick freezing bin, so that the abalone in the quick freezing bin can be quickly frozen. The inclined table is arranged in the operating device. The conveying device is arranged on the opening of the inclined table. The first hinge part of the inclined table is driven by the eccentric wheel through the connecting rod, so that the abalone on the screen can be dispersed, the excess ice can be removed by the scraper, the ice formation phenomenon is reduced, and the recovery efficiency of the finished product after quick freezing is improved.

[0004] The existing abalone quick freezing equipment generally directly blows cold air to the abalone in the conveying process for freezing. The cold air is generally only contacted with the abalone from one direction, which easily causes the abalone in the stack to be difficult to freeze, and also easily freezes the stacked abalone into a whole. In addition, the direct freezing method causes a large amount of energy waste. SUMMARY

[0005] The purpose of the present application is to provide a quick freezing device for abalone production and processing to solve the above problems in the prior art.

[0006] In order to achieve the above purpose, the present application provides the following technical scheme:

[0007] The utility model provides a kind of quick freezing device for abalone production and processing, including outer frame, conveying assembly is arranged in the outer frame, the upper end of conveying assembly is sequentially provided with precooling area, freezing area and stripping area in order, and precooling area, freezing area and stripping area are separated by baffle, it further includes:

[0008] Cooling assembly is arranged in freezing area, and cooling assembly includes annular cooling pipe, annular cooling pipe is in back character shape and is sleeved outside conveying assembly, the inside of annular cooling pipe is oppositely provided with multiple nozzles, and the nozzles are staggered arrangement, one end of annular cooling pipe is provided with regulating valve, regulating valve is connected with liquid nitrogen storage device, cooling assembly is provided with cold air circulation mechanism, and cold air circulation mechanism is arranged between two baffles;

[0009] Precooling assembly is arranged in precooling area, and precooling assembly includes precooling pipe, precooling pipe is communicated with cooling assembly by connecting pipe, connecting pipe is flexible hose, precooling pipe is in U shape, and conveying assembly is inside precooling pipe, and multiple air jet grooves are uniformly arranged on precooling pipe.

[0010] The above-mentioned conveying assembly includes two conveying rollers, a hollow conveying belt is sleeved between the two conveying rollers, and at least one end of the conveying roller is connected to the output end of the conveying motor through a shaft coupling.

[0011] The above-mentioned conveying roller outside the stripping area is provided with a tapered column, which can be inserted into the hollow conveying belt.

[0012] The above-mentioned cooling assembly further includes a fluctuation mechanism, which is arranged inside the conveying assembly and below the freezing area.

[0013] The above-mentioned fluctuation mechanism includes a rotating shaft, one end of the rotating shaft and one end of the conveying assembly are each provided with a synchronous wheel, the two synchronous wheels are connected by a synchronous belt, multiple eccentric wheels are uniformly arranged on the rotating shaft along its length direction, a horizontal plate is arranged inside the outer frame, multiple lifting rods are uniformly arranged on the horizontal plate along its length direction, each lifting rod is slidably arranged on the horizontal plate, and a damping spring is arranged between each lifting rod and the horizontal plate, and the damping spring is sleeved outside the lifting rod.

[0014] The upper end of the lifting rod is provided with a circular arc plate, and the lower end of the lifting rod is provided with a flat plate.

[0015] The cold air circulation mechanism comprises two cylinders, the two cylinders are symmetrically arranged between the two baffles and are located at the upper part of the baffles, one end of the cylinder facing the pre-cooling area is provided with a fan, the side of each cylinder is uniformly provided with a plurality of openings along the circumference, and the end of the cylinder provided with the fan is provided with a conical opening, and the fan is located between the cylinder and the conical opening.

[0016] The pre-cooling assembly further comprises a sliding block arranged on one side of the pre-cooling pipe and arranged in a sliding manner on the inner wall of the outer frame, a reset spring is arranged between the sliding block and the outer frame, and the upper end of the pre-cooling pipe is provided with a baffle.

[0017] The stripping assembly further comprises a moving frame arranged in a sliding manner on the inner side of the outer frame, the lower end of the shovel plate is rotatably connected to the moving frame, and a reciprocating spring is arranged between the moving frame and the outer frame.

[0018] The stripping assembly further comprises a moving frame arranged in a sliding manner on the inner side of the outer frame, the lower end of the shovel plate is rotatably connected to the moving frame, and a reciprocating spring is arranged between the moving frame and the outer frame.

[0019] In the above technical solution, the present application has the following advantages:

[0020] 1、The annular cooling pipe and the nozzle are arranged to spray liquid nitrogen to the abalones conveyed on the conveying assembly, so that the liquid nitrogen can quickly freeze the abalones, and the cold air circulation mechanism can stir and disturb the liquid nitrogen, so that the liquid nitrogen can fully contact the abalones from multiple directions and freeze them.

[0021] The connecting pipe is arranged to connect the end of the annular cooling pipe with the pre-cooling pipe, so that the residual liquid nitrogen in the annular cooling pipe is conveyed to the pre-cooling area, the pre-cooling pipe sprays the residual liquid nitrogen in the jet groove to the abalones just entering the outer frame, so that the residual liquid nitrogen pre-freezes the abalones and accelerates the freezing speed of the abalones. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments or the prior art, the drawings needed in the embodiments will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0023] Figure 1The three-dimensional structural schematic view of the quick freezing device for abalone production and processing provided by the embodiment of the present application is shown in the figure;

[0024] Figure 2 The top view of the quick freezing device for abalone production and processing provided by another embodiment of the present application is shown in the figure;

[0025] Figure 3 The three-dimensional structural schematic view of the quick freezing device for abalone production and processing provided by another embodiment of the present application is shown in the figure; Figure 2 The sectional view of the quick freezing device for abalone production and processing provided by another embodiment of the present application is shown in the figure;

[0026] Figure 4 The three-dimensional structural schematic view of the quick freezing device for abalone production and processing provided by another embodiment of the present application is shown in the figure; Figure 3 The local enlarged schematic view of the quick freezing device for abalone production and processing provided by another embodiment of the present application is shown in the figure;

[0027] Figure 5 The three-dimensional structural schematic view of the cold air circulation mechanism provided by another embodiment of the present application is shown in the figure;

[0028] Figure 6 The three-dimensional structural schematic view of the relationship between the conveying roller, the undulating mechanism and the stripping assembly provided by another embodiment of the present application is shown in the figure;

[0029] Figure 7 The planar structural schematic view of the relationship between the conveying roller, the undulating mechanism and the stripping assembly provided by another embodiment of the present application is shown in the figure;

[0030] Figure 8 The three-dimensional structural schematic view of the relationship between the annular cooling pipe, the nozzle, the adjusting valve, the pre-cooling pipe, the connecting pipe and the baffle provided by another embodiment of the present application is shown in the figure;

[0031] Figure 9 The local three-dimensional structural schematic view of the relationship between the hollow conveying belt, the cross strip and the buffer spring provided by another embodiment of the present application is shown in the figure.

[0032] Explanation of reference signs:

[0033] 1, outer frame; 10, partition; 2, conveying assembly; 20, pre-cooling area; 21, freezing area; 22, stripping area; 23, conveying roller; 230, tapered column; 24, hollow conveying belt; 25, conveying motor; 26, cross strip; 27, buffer spring; 3, cooling assembly; 30, annular cooling pipe; 31, nozzle; 32, adjusting valve; 33, cold air circulation mechanism; 330, cylinder; 331, fan; 332, opening; 333, conical opening; 34, undulating mechanism; 340, rotating shaft; 341, synchronous wheel; 342, synchronous belt; 343, eccentric wheel; 344, cross plate; 345, lifting rod; 3450, circular arc plate; 3451, flat plate; 346, damping spring; 4, pre-cooling assembly; 40, pre-cooling pipe; 41, connecting pipe; 42, sliding block; 43, return spring; 44, baffle; 5, stripping assembly; 50, shovel plate; 51, moving frame; 52, reciprocating spring. Detailed Implementation

[0034] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0035] In the description of this invention, it should be understood that the terms "upper", "lower", "vertical", "horizontal", "side", "inner", "outer", "one end", "the other end", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0036] like Figures 1-9 As shown in the figure, a rapid freezing device for abalone production and processing provided in this embodiment of the invention includes an outer frame 1, with a feed inlet at one end of the outer frame 1, the feed inlet being connected to the outer frame 1. A conveying assembly 2 is provided inside the outer frame 1, and a pre-cooling zone 20, a freezing zone 21, and a peeling zone 22 are sequentially arranged on the upper end of the conveying assembly 2, and the pre-cooling zone 20, the freezing zone 21, and the peeling zone 22 are separated by a partition 10. The lower end of the feed inlet is located at the end of the pre-cooling zone 20 away from the peeling zone 22. The device also includes:

[0037] Cooling component 3 is located in freezing zone 21. Cooling component 3 includes an annular cooling pipe 30. The annular cooling pipe 30 is U-shaped and sleeved on the outside of conveying component 2. Multiple nozzles 31 are arranged opposite each other on the inner side of the annular cooling pipe 30, and the nozzles 31 are staggered. One end of the annular cooling pipe 30 is provided with a regulating valve 32, which is connected to liquid nitrogen storage equipment. Cooling component 3 is provided with a cold air circulation mechanism 33, which is located between two partitions 10.

[0038] The precooling component 4 is located in the precooling zone 20. The precooling component 4 includes a precooling pipe 40, which is connected to the cooling component 3 through a connecting pipe 41. The connecting pipe 41 is a telescopic flexible hose. The precooling pipe 40 is U-shaped, and the conveying component 2 is located inside the precooling pipe 40. Multiple jet slots are evenly arranged on the precooling pipe 40.

[0039] In another embodiment of the present invention, the conveying assembly 2 includes two conveying rollers 23, a perforated conveying belt 24 is sleeved between the two conveying rollers 23, and one end of at least one conveying roller 23 is connected to the output end of the conveying motor 25 through a coupling. A crossbar 26 is slidably arranged on the perforated conveying belt 24, and a buffer spring 27 is arranged between the crossbar 26 and the perforated conveying belt 24.

[0040] The specific implementation is as follows: first, the abalones to be frozen are added into the quick freezing device for abalone production and processing from the feeding port, so that the abalones fall from the feeding port to the pre-cooling area 20 of the conveying assembly 2. At this time, the conveying motor 25 drives the conveying rollers 23 connected thereto to rotate, the conveying rollers 23 drive another conveying roller 23 to rotate through the hollow conveying belt 24, and then the hollow conveying belt 24 drives the abalones falling thereon to move from the pre-cooling area 20 to the freezing area 21 and the stripping area 22. When the hollow conveying belt 24 drives the abalones to move, in order to avoid the abalones being stacked to cause insufficient freezing and the stacked abalones being frozen as a whole, the stacked abalones are flattened by the partition plate 10 when the hollow conveying belt 24 drives the abalones to move, so that the abalones are laid in a single layer on the upper end of the hollow conveying belt 24. In addition, the transverse strips 26 can separate the abalones on the hollow conveying belt 24 to prevent the abalones from being stacked, and the transverse strips 26 can squeeze the buffer springs 27 and slide along the hollow conveying belt 24, so that the transverse strips 26 can yield and squeeze the abalones when they move with the hollow conveying belt 24, thereby avoiding the abalones being stuck between the partition plate 10 and the hollow conveying belt 24. When the abalones are laid in a single layer and move with the hollow conveying belt 24, the control valve is opened, the liquid nitrogen storage device sends liquid nitrogen into the annular cooling pipe 30 through the control valve, and the liquid nitrogen entering the annular cooling pipe 30 is sprayed from the nozzles 31 to the abalones on the hollow conveying belt 24, so that the liquid nitrogen freezes the abalones. At the same time, the airflow in the freezing area 21 is fully circulated by the cold air circulation mechanism 33, so that the liquid nitrogen sprayed from the nozzles 31 can fully contact the abalones, thereby allowing the liquid nitrogen to fully freeze the abalones.

[0041] In another embodiment provided by the present application, a tapered column 230 is arranged outside the conveying roller 23 in the stripping area 22, and the tapered column 230 can be inserted into the hollow part of the hollow conveying belt 24.

[0042] The specific implementation is as follows: when the abalones on the hollow conveying belt 24 are frozen by the liquid nitrogen, the abalones move synchronously with the hollow conveying belt 24, in the process, the water exuded by the abalones is synchronously frozen and adhered to the hollow conveying belt 24, which makes it difficult for the hollow conveying belt 24 to drain water through the hollow part. In order to prevent the hollow part of the hollow conveying belt 24 from being blocked by ice, when the conveying motor 25 drives the two conveying rollers 23 to rotate the hollow conveying belt 24, the hollow conveying belt 24 bent at the conveying roller 23 can break and discharge the ice in the hollow part. At the same time, the conveying roller 23 in the stripping area 22 inserts the tapered column 230 arranged outside the conveying roller 23 into the hollow part of the hollow conveying belt 24, and the ice in the hollow part is squeezed out by the tapered column 230 inserted into the hollow part, thereby ensuring the drainage effect of the hollow conveying belt 24.

[0043] In another embodiment of the present application, the cooling assembly 3 further comprises a fluctuation mechanism 34, which is arranged inside the conveying assembly 2 and below the freezing area 21.

[0044] The specific implementation is as follows: when the conveying motor 25 drives the two conveying rollers 23 to rotate the hollow conveying belt 24, the driving motor drives the fluctuation mechanism 34 to rotate through the conveying rollers 23, so as to make the fluctuation mechanism 34 apply a pressing action to the hollow conveying belt 24. In this way, the fluctuation mechanism 34 can press the frozen abalones through the hollow conveying belt 24, so as to prevent the abalones from adhering to the surface of the hollow conveying belt 24 after being frozen, realize the separation of the frozen abalones from the hollow conveying belt 24, and avoid the problem of difficult discharging of the frozen abalones due to the adhesion of the abalones to the hollow conveying belt 24.

[0045] In another embodiment of the present application, the fluctuation mechanism 34 comprises a rotating shaft 340, one end of the rotating shaft 340 and one end of the conveying assembly 2 are respectively provided with a synchronous wheel 341, the two synchronous wheels 341 are connected through a synchronous belt 342, a plurality of eccentric wheels 343 are uniformly arranged on the rotating shaft 340 along the length direction of the rotating shaft 340, a horizontal plate 344 is arranged inside the outer frame 1, a plurality of lifting rods 345 are uniformly arranged on the horizontal plate 344 along the length direction of the horizontal plate 344, each lifting rod 345 is arranged on the horizontal plate 344 in a sliding manner, and a damping spring 346 is arranged between each lifting rod 345 and the horizontal plate 344, the damping spring 346 is sleeved outside the lifting rod 345.

[0046] The specific implementation is as follows: a synchronous wheel 341 is arranged at one end of the conveying roller 23 connected with the conveying motor 25; when the conveying motor 25 drives the two conveying rollers 23 to rotate to convey the abalones, the conveying motor 25 drives the synchronous wheel 341 on the conveying roller 23 to rotate synchronously, and then the synchronous wheel 341 connected with the conveying roller 23 drives the synchronous wheel 341 connected with the rotating shaft 340 to rotate through the synchronous belt 342, so that the rotating shaft 340 rotates synchronously with the synchronous wheel 341, and thus the plurality of eccentric wheels 343 arranged on the rotating shaft 340 rotate synchronously, the eccentric wheels 343 extrude the lifting rod 345 when rotating, so that the lifting rod 345 moves in the vertical direction along the horizontal plate 344, and under the joint action of the eccentric wheels 343 and the damping springs 346, the lifting rod 345 can reciprocate on the horizontal plate 344, so that the upper end of the lifting rod 345 extrudes the hollow conveying belt 24, the hollow conveying belt 24 is deformed at the extrusion position of the vertical rod, the hollow conveying belt 24 is bent, and the ice blocks in the hollow part are broken, so as to ensure the drainage effect of the hollow conveying belt 24, and meanwhile, when the lifting rod 345 moves vertically and extrudes the hollow conveying belt 24, the lifting rod 345 can prevent the frozen abalones from being adhered to the surface of the hollow conveying belt 24, so that the frozen abalones are separated from the hollow conveying belt 24, and the situation that the frozen abalones are difficult to be discharged due to the adhesion between the abalones and the hollow conveying belt 24 is avoided.

[0047] In another embodiment provided by the application, the upper end of the lifting rod 345 is provided with a circular arc plate 3450, and the lower end of the lifting rod 345 is provided with a flat plate 3451.

[0048] The specific implementation is as follows: the upper end of the lifting rod 345 is attached to the hollow conveying belt 24 through the circular arc plate 3450, and the circular arc plate 3450 can prevent the lifting rod 345 from being stuck with the hollow conveying belt 24 when the lifting rod 345 rises and extrudes the hollow conveying belt 24; the upper end of the lifting rod 345 is attached to the edge of the eccentric wheel 343 through the flat plate 3451, the flat plate 3451 can expand the contact area between the lifting rod 345 and the edge of the eccentric wheel 343, so as to reduce the wear degree between the lifting rod 345 and the edge of the eccentric wheel 343, and meanwhile, the stable contact between the eccentric wheel 343 and the lifting rod 345 is ensured.

[0049] In another embodiment provided by the application, the cold air circulation mechanism 33 comprises two cylinders 330, the two cylinders 330 are arranged in a symmetrical manner between the two partition plates 10 and are located on the upper side of the partition plates 10, one end of each cylinder 330 towards the pre-cooling area 20 is provided with a fan 331, a plurality of openings 332 are uniformly arranged on the side edge of each cylinder 330 along the circumferential direction, one end of the cylinder 330 provided with the fan 331 is provided with a conical port 333, and the fan 331 is located between the cylinder 330 and the conical port 333.

[0050] The specific implementation is as follows: when the hollow conveying belt 24 conveys the abalones from the pre-cooling area 20 to the freezing area 21 to perform the freezing operation, in order to ensure that the liquid nitrogen entering the freezing area 21 through the annular cooling pipe 30 can be in sufficient contact with the abalones to be frozen, the fan 331 is operated to generate a negative pressure effect, the fan 331 extracts the air and the liquid nitrogen in the freezing area 21 through the plurality of openings 332 on the cylinder 330, so as to promote the flow of the liquid nitrogen in the freezing area 21, thereby ensuring that the liquid nitrogen entering the freezing area 21 through the annular cooling pipe 30 can be in sufficient contact with the abalones to be frozen, and the abalones can be sufficiently frozen by the liquid nitrogen. In addition, the air and the liquid nitrogen in the freezing area 21 extracted by the fan 331 through the plurality of openings 332 on the cylinder 330 are sprayed to the pre-cooling area 20 through the conical opening 333, so that the liquid nitrogen sprayed from the conical opening 333 can preliminarily freeze the abalones falling into the pre-cooling area 20 from the feeding port. In addition, when the liquid nitrogen enters the connecting pipe 41 from the annular cooling pipe 30 after passing through the regulating valve 32, and is sprayed to the abalones in the freezing area 21 from the nozzle 31 to freeze the abalones, the excess liquid nitrogen enters the pre-cooling pipe 40 through the connecting pipe 41. At this time, the liquid nitrogen is sprayed to the abalones in the pre-cooling area 20 from the air injection groove on the pre-cooling pipe 40, so as to preliminarily freeze the abalones.

[0051] In another embodiment provided by the present application, the pre-cooling assembly 4 further comprises a sliding block 42, the sliding block 42 is arranged on one side of the pre-cooling pipe 40, and the sliding block 42 is arranged in a sliding manner on the inner wall of the outer frame 1. The sliding block 42 and the outer frame 1 are arranged with a reset spring 43. The pre-cooling pipe 40 is arranged with a baffle 44 at the upper end.

[0052] The specific implementation is as follows: when the fan 331 extracts the air and the liquid nitrogen in the freezing area 21 through the plurality of openings 332 on the cylinder 330, and sprays them to the pre-cooling area 20 through the conical opening 333, the fan 331 drives the air and the liquid nitrogen to be sprayed from the conical opening 333 and impact the baffle 44. The impact force causes the baffle 44 to displace, thereby driving the pre-cooling pipe 40 and the sliding block 42 to extrude the reset spring 43 and move along the outer frame 1. Under the combined influence of the elasticity of the reset spring 43 and the external force suffered by the baffle 44, the pre-cooling pipe 40 realizes reciprocating movement. In this way, the pre-cooling pipe 40 in reciprocating movement can uniformly spray the liquid nitrogen to the pre-cooling area 20 through the air injection groove. In addition, the connecting pipe 41 can be telescopic to adapt to the movement of the pre-cooling pipe 40 when the pre-cooling pipe 40 reciprocates.

[0053] In another embodiment provided by the present application, the stripping assembly 5 is arranged in the stripping area 22. The stripping assembly 5 comprises a shovel plate 50 arranged in a rotating manner on the inner side of the outer frame 1. The stripping assembly 5 intermittently scrapes the surface of the conveying assembly 2 in the stripping area 22 by means of the shovel plate 50, so as to remove the adhered ice blocks on the surface of the conveying assembly 2 by the shovel plate 50.

[0054] The specific implementation is as follows: after the abalones are frozen in the freezing area 21, the conveying motor 25 drives the two conveying rollers 23 to rotate the hollow conveying belt 24, so that the frozen abalones are moved from the freezing area 21 to the stripping area 22. At the same time, the conveying motor 25 drives the rotating shaft 340 to rotate by means of the synchronous wheel 341 and the synchronous belt 342, and then drives the eccentric wheel 343 on the rotating shaft 340 to rotate. When the eccentric wheel 343 rotates, it can drive the shovel plate 50 to reciprocatingly swing in the outer frame 1. The reciprocating swing of the shovel plate 50 can shovel the frozen abalones on the hollow conveying belt 24 and remove the ice blocks adhered to the hollow conveying belt 24.

[0055] In another embodiment of the present application, the stripping assembly 5 further comprises a moving frame 51, which is slidably arranged on the inner side of the outer frame 1. The lower end of the shovel plate 50 is rotatably connected to the moving frame 51. A reciprocating spring 52 is arranged between the moving frame 51 and the outer frame 1.

[0056] The specific implementation is as follows: the conveying motor 25 drives the two conveying rollers 23 to rotate the hollow conveying belt 24, so that the frozen abalones are conveyed from the freezing area 21 to the stripping area 22. At the same time, the conveying motor 25 drives the rotating shaft 340 to rotate by means of the synchronous wheel 341 and the synchronous belt 342, and then drives the eccentric wheel 343 on the rotating shaft 340 to rotate. When the eccentric wheel 343 rotates, it can drive the moving frame 51 to be extruded, so that the moving frame 51 extrudes the reciprocating spring 52 and moves upward along the outer frame 1. At the same time, under the joint action of gravity and the reciprocating spring 52, the moving frame 51 drives the lower end of the shovel plate 50 to reciprocatingly swing, so that the shovel plate 50 can shovel the frozen abalones and the ice blocks adhered thereto on the hollow conveying belt 24.

[0057] Working principle: first from the inlet to the abalone production and processing with the quick freezing device to add the frozen abalone, make abalone from the inlet to drop to the pre-cooling area 20 of the conveying assembly 2. At this time, the conveying motor 25 drives the conveying roller 23 connected with it to rotate, the conveying roller 23 drives another conveying roller 23 to rotate through the hollow conveying belt 24, and then the hollow conveying belt 24 drives the abalone falling on it to move from the pre-cooling area 20 to the freezing area 21 and the stripping area 22. When the hollow conveying belt 24 moves the abalone, in order to avoid the abalone stacking leading to insufficient freezing and the stacked abalone frozen as a whole, when the hollow conveying belt 24 moves the abalone, the stacked abalone is flattened by the partition plate 10, so that the abalone is laid in a single layer on the upper end of the hollow conveying belt 24. In addition, the transverse strip 26 can separate the abalone on the hollow conveying belt 24 to prevent the abalone from stacking. At the same time, the transverse strip 26 can extrude the buffer spring 27 and slide along the hollow conveying belt 24, so that the transverse strip 26 can yield and extrude the abalone when it moves with the hollow conveying belt 24, avoiding the abalone being stuck between the partition plate 10 and the hollow conveying belt 24. When the abalone is laid in a single layer and moves with the hollow conveying belt 24, open the control valve, so that the liquid nitrogen storage device sends liquid nitrogen into the annular cooling pipe 30 through the control valve, and the liquid nitrogen in the annular cooling pipe 30 is sprayed from the nozzle 31 to the abalone on the hollow conveying belt 24, so that the liquid nitrogen freezes the abalone. At the same time, the airflow in the freezing area 21 is fully circulated by the cold air circulation mechanism 33, so that the liquid nitrogen sprayed from the nozzle 31 can fully contact the abalone, so that the liquid nitrogen can fully freeze the abalone. When the liquid nitrogen is used to freeze the abalone on the hollow conveying belt 24, the abalone moves synchronously with the hollow conveying belt 24, and in this process, the water exuded by the abalone is frozen synchronously and adheres to the hollow conveying belt 24, which makes it difficult for the hollow conveying belt 24 to drain through the hollow part. In order to prevent the hollow part of the hollow conveying belt 24 from being blocked by ice, when the conveying motor 25 drives the two conveying rollers 23 to rotate the hollow conveying belt 24, the hollow conveying belt 24 bent at the conveying roller 23 can break the ice in the hollow part and discharge it. At the same time, the conveying roller 23 in the stripping area 22 inserts the hollow part of the hollow conveying belt 24 through the taper column 230 arranged on the outer side of the conveying roller 23, and the taper column 230 inserts the ice in the hollow part and extrudes it, so as to ensure the drainage effect of the hollow conveying belt 24;

[0058] When the perforated conveyor belt 24 conveys the abalones from the pre-cooling area 20 to the freezing area 21 to perform the freezing operation, in order to ensure that the liquid nitrogen entering the freezing area 21 through the annular cooling pipe 30 can be in full contact with the abalones to be frozen, the fan 331 is operated to generate a negative pressure effect, the fan 331 draws the air and the liquid nitrogen in the freezing area 21 through the plurality of openings 332 on the cylinder 330, so as to promote the flow of the liquid nitrogen in the freezing area 21, thereby ensuring that the liquid nitrogen entering the freezing area 21 through the annular cooling pipe 30 can be in full contact with the abalones to be frozen, so as to achieve the full freezing of the abalones by the liquid nitrogen, in addition, the air and the liquid nitrogen in the freezing area 21 drawn by the fan 331 through the plurality of openings 332 on the cylinder 330 are sprayed to the pre-cooling area 20 through the conical port 333, so that the liquid nitrogen sprayed from the conical port 333 can preliminarily freeze the abalones falling into the pre-cooling area 20 from the feeding port, in addition, when the liquid nitrogen enters the annular cooling pipe 30 from the liquid nitrogen storage device through the regulating valve 32, and is sprayed to the abalones in the freezing area 21 from the nozzle 31 to freeze the abalones, the excess liquid nitrogen will enter the connecting pipe 41 from the end of the annular cooling pipe 30, and then enter the pre-cooling pipe 40 through the connecting pipe 41, at this time, the liquid nitrogen is sprayed to the abalones in the pre-cooling area 20 from the air jet groove on the pre-cooling pipe 40, so as to achieve the preliminary freezing of the abalones; when the fan 331 draws the air and the liquid nitrogen in the freezing area 21 through the plurality of openings 332 on the cylinder 330, and sprays them to the pre-cooling area 20 through the conical port 333, the fan 331 drives the air and the liquid nitrogen to be sprayed from the conical port 333 and impact the baffle 44, the impact force causes the baffle 44 to displace, thereby driving the pre-cooling pipe 40 and the sliding block 42 to extrude the return spring 43 and move along the outer frame 1, under the combined influence of the elasticity of the return spring 43 and the external force on the baffle 44, the pre-cooling pipe 40 realizes reciprocating movement, in this way, the reciprocating pre-cooling pipe 40 can uniformly spray the liquid nitrogen to the pre-cooling area 20 through the air jet groove; in addition, when the pre-cooling pipe 40 reciprocates, the connecting pipe 41 can be telescopic to adapt to the movement of the pre-cooling pipe 40;

[0059] When the conveying motor 25 drives the two conveying rollers 23 to rotate the hollow conveying belt 24, the driving motor drives the undulating mechanism 34 to rotate through the conveying rollers 23, so that the undulating mechanism 34 exerts a pressing action on the hollow conveying belt 24. Thus, the undulating mechanism 34 can press the frozen abalones through the hollow conveying belt 24, so as to prevent the frozen abalones from adhering to the surface of the hollow conveying belt 24, realize the separation of the frozen abalones from the hollow conveying belt 24, and avoid the problem of difficult discharge of the frozen abalones due to the adhesion of the abalones to the hollow conveying belt 24. Specifically, a synchronous wheel 341 is arranged at one end of the conveying roller 23 connected with the conveying motor 25. When the conveying motor 25 drives the two conveying rollers 23 to rotate the hollow conveying belt 24 to convey the abalones, the conveying motor 25 drives the synchronous wheel 341 on the conveying roller 23 to rotate synchronously, so as to drive the synchronous wheel 341 connected with the rotating shaft 340 to rotate through the synchronous belt 342, and drive the rotating shaft 340 to rotate synchronously with the synchronous wheel 341. Thus, the rotating shaft 340 drives the plurality of eccentric wheels 343 arranged thereon to rotate synchronously. When the eccentric wheels 343 rotate, they exert a pressing action on the lifting rod 345, so that the lifting rod 345 moves in the vertical direction along the horizontal plate 344. Under the joint action of the eccentric wheels 343 and the damping springs 346, the lifting rod 345 can move reciprocally on the horizontal plate 344, so as to exert a pressing action on the hollow conveying belt 24 through the upper end of the lifting rod 345, deform the hollow conveying belt 24 at the pressing position of the vertical rod, bend the hollow conveying belt 24, and break the ice blocks discharged from the hollow part, so as to ensure the drainage effect of the hollow conveying belt 24. Meanwhile, when the lifting rod 345 moves vertically and presses the hollow conveying belt 24, the lifting rod 345 can prevent the frozen abalones from adhering to the surface of the hollow conveying belt 24, facilitate the separation of the frozen abalones from the hollow conveying belt 24, and avoid the difficult discharge of the frozen abalones due to the adhesion of the abalones to the hollow conveying belt 24. The upper end of the lifting rod 345 is attached to the hollow conveying belt 24 through the circular arc plate 3450. When the circular arc plate 3450 rises and presses the hollow conveying belt 24, it can prevent the lifting rod 345 from being stuck with the hollow conveying belt 24. The upper end of the lifting rod 345 is attached to the edge of the eccentric wheel 343 through the flat plate 3451. The flat plate 3451 can enlarge the contact area between the lifting rod 345 and the edge of the eccentric wheel 343, reduce the wear degree between the lifting rod 345 and the edge of the eccentric wheel 343, and ensure the stable contact between the eccentric wheel 343 and the lifting rod 345.

[0060] In addition, after the abalones are frozen in the freezing area 21, the conveying motor 25 drives the two conveying rollers 23 to rotate the hollow conveying belt 24, so as to move the frozen abalones from the freezing area 21 to the stripping area 22. Meanwhile, the conveying motor 25 drives the rotating shaft 340 to rotate through the synchronous wheel 341 and the synchronous belt 342, and then drives the eccentric wheel 343 on the rotating shaft 340 to rotate. When the eccentric wheel 343 rotates, it can drive the shovel plate 50 to reciprocatingly swing in the outer frame 1. Through the reciprocating swing of the shovel plate 50, the surface of the conveying assembly 2 in the stripping area 22 is scraped, so as to shovel the frozen abalones on the hollow conveying belt 24, and the shovel plate 50 can also shovel the ice blocks adhered on the hollow conveying belt 24. Specifically, the conveying motor 25 drives the two conveying rollers 23 to rotate the hollow conveying belt 24, so as to convey the frozen abalones from the freezing area 21 to the stripping area 22. At the same time, the conveying motor 25 drives the rotating shaft 340 to rotate through the synchronous wheel 341 and the synchronous belt 342, and then drives the eccentric wheel 343 on the rotating shaft 340 to rotate. When the eccentric wheel 343 rotates, it exerts a pressing force on the moving frame 51, so as to press the reciprocating spring 52 and move the moving frame 51 upward along the outer frame 1. Meanwhile, under the joint action of the gravity and the reciprocating spring 52, the moving frame 51 drives the lower end of the shovel plate 50 to reciprocatingly swing, so as to shovel the frozen abalones and the ice blocks adhered thereon on the hollow conveying belt 24.

[0061] The foregoing merely describes some exemplary embodiments of the present application by way of illustration, and it is needless to say that those skilled in the art can modify the described embodiments in various manners without departing from the spirit and scope of the present application. Therefore, the foregoing drawings and descriptions are illustrative in nature, and should not be construed as limiting the scope of the claims of the present application.

Claims

1. A quick freezing device for abalone production and processing, comprising an outer frame (1), a conveying assembly (2) is arranged in the outer frame (1), the upper end of the conveying assembly (2) is sequentially provided with a pre-cooling area (20), a freezing area (21) and a stripping area (22) in sequence, and the pre-cooling area (20), the freezing area (21) and the stripping area (22) are separated by a partition plate (10), characterized in that, Also include: Cooling assembly (3), the cooling assembly (3) is arranged in the freezing area (21), the cooling assembly (3) includes annular cooling pipe (30), the annular cooling pipe (30) is in the shape of a back and is sleeved on the outside of the conveying assembly (2), the inside of the annular cooling pipe (30) is oppositely provided with a plurality of nozzles (31), and the nozzles (31) are arranged staggeredly, one end of the annular cooling pipe (30) is provided with an adjusting valve (32), the adjusting valve (32) is connected with liquid nitrogen storage equipment, the cooling assembly (3) is provided with cold air circulating mechanism (33), the cold air circulating mechanism (33) is arranged between the two partitions (10); Precooling assembly (4), the precooling assembly (4) is arranged in the precooling area (20), the precooling assembly (4) includes precooling pipe (40), the precooling pipe (40) is communicated with the cooling assembly (3) through the connecting pipe (41), the connecting pipe (41) is a flexible hose, the precooling pipe (40) is in the shape of U, and the conveying assembly (2) is inside the precooling pipe (40), a plurality of air injection grooves are uniformly arranged on the precooling pipe (40); The cold air circulating mechanism (33) includes two cylinders (330), the two cylinders (330) are symmetrically arranged between the two partitions (10), and the two cylinders (330) are located at the upper portion of the partition (10), one end of the cylinder (330) towards the precooling area (20) is provided with a fan (331), a plurality of openings (332) are uniformly arranged on the side of each cylinder (330) along the circumferential direction thereof, one end of the cylinder (330) provided with the fan (331) is provided with a conical port (333), and the fan (331) is located between the cylinder (330) and the conical port (333); The precooling assembly (4) further includes a sliding block (42), the sliding block (42) is arranged on one side of the precooling pipe (40), and the sliding block (42) is arranged in a sliding manner on the inner wall of the outer frame (1), a return spring (43) is arranged between the sliding block (42) and the outer frame (1), and a baffle (44) is arranged on the upper end of the precooling pipe (40); When the fan (331) extracts the air and liquid nitrogen in the freezing area (21) through the plurality of openings (332) on the cylinder (330) and sprays them towards the precooling area (20) through the conical port (333), the fan (331) drives the air and liquid nitrogen to be sprayed out of the conical port (333) and impact the baffle (44), the impact force causes the baffle (44) to displace, thereby driving the precooling pipe (40) and the sliding block (42) to extrude the return spring (43) and move along the outer frame (1), under the combined influence of the elastic action of the return spring (43) and the external force suffered by the baffle (44), the precooling pipe (40) realizes reciprocating movement.

2. The quick freezing device for abalone production and processing according to claim 1, characterized in that, The conveying assembly (2) comprises two conveying rollers (23), a hollow conveying belt (24) is sleeved between the two conveying rollers (23), and one end of at least one of the conveying rollers (23) is connected with the output end of a conveying motor (25) through a shaft coupling; a transverse strip (26) is arranged on the hollow conveying belt (24) in a sliding mode, and a buffer spring (27) is arranged between the transverse strip (26) and the hollow conveying belt (24).

3. The quick freezing device for abalone production and processing according to claim 2, characterized in that, A tapered column (230) is arranged outside the conveying roller (23) in the peeling area (22), and the tapered column (230) can be inserted into the hollow conveying belt (24).

4. The quick freezing device for abalone production and processing according to claim 1, characterized in that, The cooling assembly (3) further comprises a fluctuation mechanism (34), which is arranged inside the conveying assembly (2) and below the freezing area (21).

5. The quick freezing device for abalone processing according to claim 4, characterized in that, The fluctuation mechanism (34) comprises a rotating shaft (340), one end of the rotating shaft (340) is provided with a synchronous wheel (341), the two synchronous wheels (341) are connected through a synchronous belt (342), a plurality of eccentric wheels (343) are uniformly arranged on the rotating shaft (340) along the length direction of the rotating shaft (340), a horizontal plate (344) is arranged inside the outer frame (1), a plurality of lifting rods (345) are uniformly arranged on the horizontal plate (344) along the length direction of the horizontal plate (344), and each lifting rod (345) is arranged on the horizontal plate (344) in a sliding mode.

6. The quick freezing device for abalone processing according to claim 5, characterized in that, The upper end of the lifting rod (345) is provided with a circular arc plate (3450), the lower end of the lifting rod (345) is provided with a flat plate (3451), and one damping spring (346) is arranged between each flat plate (3451) and the horizontal plate (344), and the damping spring (346) is sleeved outside the lifting rod (345).

7. The quick freezing device for abalone processing according to claim 1, characterized in that, The peeling assembly (5) is arranged in the peeling area (22), the peeling assembly (5) comprises a shovel plate (50), the shovel plate (50) is arranged in the outer frame (1) in a rotating mode, the peeling assembly (5) intermittently scrapes the surface of the conveying assembly (2) in the peeling area (22) through the shovel plate (50), so that the shovel plate (50) removes the adhered ice blocks on the surface of the conveying assembly (2).

8. The quick freezing device for abalone processing according to claim 7, characterized in that, The peeling assembly (5) further comprises a moving frame (51), the moving frame (51) is arranged in the inner side of the outer frame (1) in a sliding mode, the lower end of the shovel plate (50) is connected with the moving frame (51) in a rotating mode, and a reciprocating spring (52) is arranged between the moving frame (51) and the outer frame (1).

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