Meat product quick-freezing production device

Abstract

The invention relates to quick-freezing technical equipment, in particular to a quick-freezing production device for meat products. The technical problems that in the food quick-freezing process, food quick-freezing is not uniform, the quick-freezing effect is poor, and the liquid nitrogen utilization rate is low in the quick-freezing process are solved. According to the technical scheme, the device comprises a shell, a pre-cooling box is installed on one side of the shell, baffles are symmetrically and fixedly connected to one side of the pre-cooling box, a first rotating roller is jointly and rotationally connected between the two baffles, a second rotating roller is rotationally connected between the side walls of the shell, a conveying belt is in transmission connection between the first rotating roller and the second rotating roller, and round holes are formed in the conveying belt in an array mode. According to the pre-cooling device, the frost guide plate and the flow guide plate are installed, when food enters the pre-cooling box, ice crystals in the pre-cooling box are used in cooperation with the frost guide plate and the flow guide plate, the food is cooled and pre-cooled, and the utilization rate of low-temperature liquid nitrogen is increased while the quick-freezing effect of the food is improved through pre-cooling of the food.

Description

Technical Field

[0001] The invention relates to the technical field of quick freezing, and in particular to a meat product quick freezing production device. Background Art

[0002] Quick freezing is a food processing method that prolongs the shelf life of food and makes it easier to transport. Therefore, it is widely used in the production, storage and transportation of large quantities of food.

[0003] In the production process of the existing meat product quick-freezing production equipment, a large amount of liquid nitrogen is used to quick-freeze the food. However, in the process of quick-freezing the food with liquid nitrogen, the liquid nitrogen is only sprayed on one side of the food, which not only reduces the utilization rate of the liquid nitrogen, but also makes the quick-freezing process of the food uneven, the quick-freezing effect is poor, and the quick-freezing effect of the food is reduced.

[0004] Therefore, there is an urgent need for a meat product quick-freezing production device that can utilize the residual low temperature of liquid nitrogen to pre-cool food. Summary of the invention

[0005] In order to overcome the shortcomings of uneven quick freezing of food, poor quick freezing effect and low utilization rate of liquid nitrogen during quick freezing, the technical problem to be solved is to provide a meat product quick freezing production device that can use the residual low temperature of liquid nitrogen to pre-cool food.

[0006] The technical solution is: a meat product quick-freezing production device, including an outer shell, a precooling box is installed on one side of the outer shell, a baffle is symmetrically fixedly connected to one side of the precooling box, a first rotating roller is connected to the two baffles for common rotation, a second rotating roller is connected to the side walls of the outer shell for rotation, a conveyor belt is connected to the first rotating roller and the second rotating roller for transmission, an array of round holes is arranged on the conveyor belt, an air hole is opened on the top of the outer shell, the air hole on the top of the outer shell is connected to a turbine pump, and also includes a second fan, a second fan is installed at the bottom of the precooling box, a square groove is opened on the top of the inner side of the precooling box, an inclined groove is opened at the bottom of the precooling box, a barrier plate is hinged on the upper end of the square groove of the precooling box, a frost guide plate is provided in the precooling box, a guide plate is fixedly connected to the inner wall of the frost guide plate, the bottom of the frost guide plate is connected to an air collecting tube, the bottom of the frost guide plate is in an inclined state, and the bottom of the frost guide plate is connected to the inclined groove.

[0007] Preferably, it also includes a desublimation net, the desublimation net is horizontally symmetrically fixed to the inner wall of the shell, the desublimation net is provided with diamond holes in a staggered array, a deicing roller is provided, the deicing roller is circumferentially fixed with four-sided pyramidal deicing cones in a staggered array, and the deicing cones in the staggered array on the deicing roller correspond to the diamond holes on the desublimation net, driving connecting rods are slidably connected to both sides of the inner wall of the shell, and the deicing roller rotates and passes through the driving connecting rods.

[0008] Preferably, it also includes a threaded column, the lower end of the driving connecting rod is rotatably connected to the threaded column, a cylindrical slider is fixedly connected to one side surface of the threaded column, and a snowplow is fixedly connected to the other side surface of the threaded column. Snow storage grooves are fixedly connected to both sides of the bottom of the shell, and the snowplow slides in the snow storage grooves. The inner walls on both sides of the shell are provided with rounded circular grooves, and the cylindrical slider on the threaded column slides in the rounded circular grooves.

[0009] Preferably, a defrost plate is also included. The defrost plate slides on the top of the inner wall of the shell. Both ends of the defrost plate are fixed with driving connecting rods. A frost box is hinged between the two driving connecting rods. The frost box is U-shaped and is located directly below the defrost plate.

[0010] Preferably, it also includes a trapezoidal block, a horizontal through groove is opened on the wall surface of one side of the inner wall of the shell, a trapezoidal block is fixedly connected to the upper side of the horizontal through groove, a base is slidably connected in the horizontal through groove, a reciprocating push rod slides through the horizontal plate surface of the base, a spring is connected between the reciprocating push rod and the horizontal plate surface of the base, support rods are symmetrically arranged on the horizontal plate surface of the base, locking rods are hinged on the top of the symmetrical support rods, one end of the two locking rods are hinged on the reciprocating push rod, a threaded rod is threadedly connected to the bottom of the base, and a driving motor is installed at one end of the threaded rod.

[0011] Preferably, a first limit block is further included, and the first limit block and the second limit block are fixedly connected to the outer wall of the precooling box.

[0012] Preferably, it also includes a slider rod, a square slide groove is symmetrically fixed to the top of one end of the shell, slider rods are slidably connected in the two square slide grooves, a water wiping roller is rotatably connected between the two slider rods, the water wiping roller is in rotational contact with the conveyor belt, a scraper is fixedly connected between the two slider rods, the scraper slides on the conveyor belt, a debris box is placed under the scraper and the debris box is located on the inner side of the shell.

[0013] Preferably, a first fan is also included, the first fan is installed at the bottom of the shell, a U-shaped through groove is opened at the top of the shell, and a filter is installed at the lower end of the U-shaped through groove at the top of the shell.

[0014] Preferably, a heating roller is further included. The heating roller is rotatably mounted between the two sides of the inner wall of the shell, and the heating roller rotates inside the conveyor belt.

[0015] Preferably, two groups of supporting rollers are rotatably arranged inside the shell and are both in contact with the conveyor belt, and the two groups of supporting rollers are symmetrically arranged.

[0016] Beneficial effects of the present invention: 1. The present invention is equipped with a frost guide plate and a guide plate. When food enters the pre-cooling box, ice crystals in the pre-cooling box are used in conjunction with the frost guide plate and the guide plate to pre-cool the food. The pre-cooling of food improves the quick-freezing effect of food and increases the utilization rate of low-temperature liquid nitrogen.

[0017] 2. The present invention is equipped with a defrost plate, a frost box, a first limit block and a second limit block. Through the cooperation of the defrost plate and the frost box, the ice crystals on the top of the inner side of the shell can be scraped off, and the cooperation of the frost box, the first limit block and the second limit block can transport the scraped ice crystals to the pre-cooling box, so that the food can be cooled and pre-cooled through the pre-cooling box.

[0018] 3. The present invention is equipped with a desublimation net and a deicing roller. Through the cooperation of the desublimation net and the deicing roller, the water vapor content in the shell can be reduced as much as possible. By reducing the water vapor content in the shell, the quick-freezing efficiency of food is improved and the consumption of low-temperature liquid nitrogen is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a cross-sectional view of the precooling box of the present invention; Figure 3 is a cross-sectional view of a housing of the present invention; Figure 4 It is a schematic diagram of the supporting roller structure of the present invention; Figure 5 It is an enlarged view of point A of the present invention; Figure 6 It is an enlarged view of B of the present invention; Figure 7 It is a schematic diagram of the structure of the de-icing roller of the present invention; Figure 8 It is an enlarged view of point C of the present invention; Fig. 9 It is a schematic diagram of the structure of the defrost plate and the frost box of the present invention; Fig.10 It is a schematic diagram of the structure of the snow sweeper of the present invention; Fig.11 It is a schematic diagram of the rounded circular groove structure of the present invention.

[0020] Figure numbers: 1-housing, 101-baffle, 102-conveyor belt, 103-filter, 104-heating roller, 105-first fan, 2-turbo pump, 301-condensation net, 302-deicing roller, 303-driving connecting rod, 401-threaded column, 402-snow sweeping plate, 403-snow storage trough, 501-defrosting plate, 502-frost box, 601-trapezoidal block, 602-reciprocating push rod, 603-locking rod, 604-support rod, 605-base, 606-threaded rod, 701-precooling box, 702-second fan, 703-blocking plate, 704-frost guide plate, 705-guide plate, 706-wind collecting tube, 801-first limit block, 802-second limit block, 901-slider rod, 902-wiping roller, 903-scraper. DETAILED DESCRIPTION

[0021] The present invention will be further described below in conjunction with the accompanying drawings and embodiments. Example

[0022] A meat product quick freezing production device, such as Figure 1-Figure 11 As shown, it includes a shell 1, the shell 1 is fixedly connected to a precooling box 701, a symmetrically arranged baffle 101 is fixedly connected to one side of the precooling box 701, a first rotating roller is rotatably connected between the two baffles 101, a second rotating roller is rotatably connected to the inner wall of the shell 1, a conveyor belt 102 is transmission-connected between the first rotating roller and the second rotating roller, a circular hole is arrayed on the conveyor belt 102, an air hole is opened on the top of the shell 1, and the air hole on the top of the shell 1 is connected to a turbine pump 2, and also includes a desublimation net 301 horizontally symmetrically fixed to the inner wall of the shell 1, and the desublimation net A diamond-shaped hole is arranged in a staggered array on 301, and a deicing roller 302 is arranged on the deicing roller 302. A quadrangular pyramid-shaped deicing cone is fixedly connected to the staggered array on the deicing roller 302, and the deicing cones in the staggered array on the deicing roller 302 correspond to the diamond-shaped holes on the deicing net 301. When the deicing roller 302 rotates, the deicing cones on the deicing roller 302 can penetrate into the diamond-shaped holes on the deicing net 301. Drive connecting rods 303 are slidably connected on both sides of the inner wall of the outer shell 1, and the deicing roller 302 is rotatably connected to the drive connecting rod 303 and penetrates the drive connecting rod 303.

[0023] It also includes a threaded column 401, and the lower end of the driving connecting rod 303 is rotatably connected to the threaded column 401, a cylindrical slider is fixedly connected to one side surface of the threaded column 401, and a snowplow 402 is fixedly connected to the other side surface of the threaded column 401. Snow storage grooves 403 are fixedly connected to both sides of the bottom of the shell 1, and the snowplow 402 slides in the snow storage grooves 403. The inner walls on both sides of the shell 1 are provided with rounded circular grooves, and the cylindrical slider on the threaded column 401 slides in the rounded circular grooves and can drive the threaded column 401 to rotate.

[0024] It also includes a defrost plate 501, which slides on the top of the inner wall of the shell 1. Both ends of the defrost plate 501 are fixed with driving connecting rods 303. A frost box 502 is hinged between the two driving connecting rods 303. The frost box 502 is U-shaped. The frost box 502 is located directly below the defrost plate 501, and the width of the opening of the frost box 502 is greater than the width of the defrost plate 501. The frost box 502 can rotate with the hinge point on the driving connecting rod 303 as the center of the circle.

[0025] It also includes a trapezoidal block 601. A horizontal through groove is formed on the inner wall surface of one side of the outer shell 1. The trapezoidal block 601 is fixedly connected above the horizontal through groove. A base 605 is slidably connected in the horizontal through groove. A reciprocating push rod 602 slidably penetrates through the horizontal plate surface of the base 605. A spring is connected between the reciprocating push rod 602 and the horizontal plate surface of the base 605. Struts 604 are symmetrically arranged on the left and right on the horizontal plate surface of the base 605. Locking rods 603 are hinged at the tops of the symmetric struts 604. One ends of the two locking rods 603 are both hinged on the reciprocating push rod 602. A threaded rod 606 is threadedly connected to the bottom of the base 605. One end of the threaded rod 606 is equipped with a driving motor. The trapezoidal block 601 can limit the reciprocating push rod 602 to make the reciprocating push rod 602 slide up and down in the base 605.

[0026] It also includes a first limiting block 801. The first limiting block 801 and the second limiting block 802 are fixedly connected to the outer wall of the pre-cooling box 701. The first limiting block 801 and the second limiting block 802 can contact the frosting box 502.

[0027] It also includes a slider rod 901. Square sliding grooves are symmetrically and fixedly connected to the top of one end of the outer shell 1. The slider rod 901 is slidably connected in each of the two square sliding grooves. A water wiping roller 902 is rotatably connected between the two slider rods 901. The water wiping roller 902 is in rotational contact with the conveyor belt 102. A scraping plate 903 is fixedly connected between the two slider rods 901. The scraping plate 903 slides on the conveyor belt 102. A debris box is placed below the scraping plate 903 and the debris box is located inside the outer shell 1. The debris scraped off from the conveyor belt 102 by the scraping plate 903 will fall into the debris box.

[0028] It also includes a first blower 105. The first blower 105 is installed at the bottom of the outer shell 1. A U-shaped through groove is formed in the top of the outer shell 1. The U-shaped through groove is communicated with the air holes at the top of the outer shell 1. A filter screen 103 is installed at the lower end of the U-shaped through groove at the top of the outer shell 1. The first blower 105 is used to promote the air flow inside the outer shell 1.

[0029] It also includes a heating roller 104. The heating roller 104 is rotatably installed between the two inner walls of the outer shell 1. The heating roller 104 rotates inside the conveyor belt 102. The heating roller 104 is used to heat the conveyor belt 102.

[0030] Two groups of supporting rollers that are in contact with the conveyor belt 102 are rotatably arranged inside the outer shell 1. The two groups of supporting rollers are symmetrically arranged. Each group of supporting rollers consists of two supporting rollers that are distributed vertically. The supporting rollers are used to guide the conveyor belt 102.

[0031] The outer shell 1 is a quick-freezing chamber. One end of the outer shell 1 close to the pre-cooling box 701 is the food inlet, and the end of the outer shell 1 far from the pre-cooling box 701 is the food outlet. The moving direction of the conveyor belt 102 is from the food inlet to the food outlet. After the conveyor belt 102 enters the outer shell 1, under the guiding action of the two supporting rollers on the left, the conveyor belt 102 will be guided to the bottom of the outer shell 1. When the conveyor belt 102 is about to leave the outer shell 1, the conveyor belt 102 resumes a horizontal state under the guiding action of the two supporting rollers on the right. The conveyor belt 102 leaving the outer shell 1 will then pass through the heating roller 104 for heating. During the quick-freezing process, because the food contains moisture, the food will stick to the conveyor belt 102 due to the condensation of moisture. The heating roller 104 melts the frozen part of the conveyor belt 102 and the food passing through the heating roller 104 by heating the conveyor belt 102, making it easy for the quick-frozen food to leave the conveyor belt 102. The heating temperature of the heating roller 104 is in the range of 1 - 10 °C. This temperature range can only melt the frozen part between the food surface and the conveyor belt 102, and other positions of the food will not be affected. A low-temperature liquid nitrogen supply device (the liquid nitrogen supply device is prior art and will not be elaborated) is connected to the outside of the turbine pump 2. The turbine pump 2 pumps the low-temperature liquid nitrogen into the outer shell 1. The low-temperature liquid nitrogen entering the outer shell 1 has a certain initial velocity. The low-temperature liquid nitrogen is decelerated when it impacts the top of the U-shaped through groove in the outer shell 1, and then the low-temperature liquid nitrogen is split into two low-temperature airflows with equal flow rates and parallel directions through both sides of the U-shaped through groove. The low-temperature airflows are blown onto the conveyor belt 102 after passing through the filter screen 103. The food on the conveyor belt 102 quickly transfers its own heat to the low-temperature airflows, and then the low-temperature airflows flow to the sublimation nets 301 on both sides of the conveyor belt 102. Since the food contains moisture and the water vapor content in the outer shell 1 is relatively low, some of the moisture in the food will evaporate and enter the low-temperature airflows. When the low-temperature airflows containing water vapor pass through the sublimation nets 301, the water vapor in the low-temperature airflows sublimes in the diamond-shaped holes of the sublimation nets 301, thereby reducing the water vapor content in the outer shell 1 and reducing the frosting on the inner wall of the outer shell 1. The dried low-temperature airflows dried by the sublimation nets 301 enter the lower side of the conveyor belt 102 after passing through the sublimation nets 301. The dried low-temperature airflows are blown towards the conveyor belt 102 under the push of the first fan 105 and reach the lower side of the food through the array of round holes on the conveyor belt 102, realizing the quick-freezing of the lower side of the food by the dried low-temperature airflows. The quick-freezing of the upper side of the food is completed by pumping the low-temperature liquid nitrogen into the outer shell 1 through the turbine pump 2, and the quick-freezing of the lower side of the food is completed by blowing the dried low-temperature airflows to the lower side of the food by the first fan 105, achieving the freezing of both the upper and lower sides of the food, and increasing the utilization rate of the low-temperature liquid nitrogen while improving the quick-freezing efficiency.

[0032] When the low-temperature airflows carrying water vapor pass through the sublimation nets 301, the water vapor sublimes into solid ice crystals on the sublimation nets 301. The driving motor can drive the threaded rod 606 to rotate clockwise and counterclockwise, thereby driving the base 605 threadedly connected to the threaded rod 606 to perform reciprocating horizontal movement along the inner wall of the outer shell 1.

[0033] Initially, the base 605 is located on the side of the condensation net 301 close to the slider rod 901, the reciprocating push rod 602 is located on the left side of the trapezoidal block 601, the de-icing roller 302 passes through one end of the driving connecting rod 303, and is just stuck between the locking rod 603 and the support rod 604 on the left side of the base 605, the slider rod 901 is located at the leftmost end of the square slide groove, the cylindrical slider on the threaded column 401 is located at the upper right corner of the rounded circular groove, and the snowplow 402 itself is perpendicular to the horizontal direction. At this time, the driving motor is started to drive the threaded rod 606 to The base 605 moves to the left under the push of the threaded rod 606, further driving the reciprocating push rod 602 to move to the left, and the reciprocating push rod 602 drives the locking rod 603 to move synchronously, and the locking rod 603 drives the de-icing roller 302 and the driving connecting rod 303 to move to the left along the de-icing net 301, and the de-icing cones on the de-icing roller 302 are inserted into the diamond holes on the de-icing net 301 in turn, so that the de-icing roller 302 rotates on the de-icing net 301, and the de-icing cones inserted into the diamond holes can pierce and squeeze the de-icing in the diamond holes. The condensed ice crystals leave the condensation net 301 and fall into the snow storage tank 403. The two driving connecting rods 303 are both tightly attached to the inner wall of the shell 1. The left and right sides of the two driving connecting rods 303 are chamfered blades for scraping the ice crystals condensed on the inner wall of the shell 1. The ice crystals scraped by the chamfered blades will fall into the snow storage tank 403. When the driving connecting rod 303 moves to the left, the defrost plate 501 at the upper end of the driving connecting rod 303 moves to the left. The defrost plate 501 is tightly attached to the top of the inner wall of the shell 1. The defrost plate 501 As the driving link 303 moves to the left, the ice crystals on the top of the inner wall of the housing 1 can be scraped off, and the ice crystals scraped off and dropped by the defrosting plate 501 will fall into the frost box 502. When the driving link 303 moves to the left, the threaded column 401 at the lower end of the driving link 303 is driven to move to the left, and the threaded column 401 drives the snow sweeping plate 402 to move to the left. One side of the snow sweeping plate 402 is closely attached to the snow storage groove 403. The snow sweeping plate 402 moving to the left can push all the ice crystals in the snow storage groove 403 into the pre-cooling box 701 on the left.

[0034] When the de-icing roller 302 approaches the pre-cooling box 701, the cylindrical slider on the threaded column 401 slides along the arc surface of the rounded circular groove and drives the threaded column 401 to rotate ninety degrees clockwise. At this time, the threaded column 401 rotates and drives the snow-clearing plate 402 to rotate to the horizontal direction to ensure that when the driving connecting rod 303 moves to the right, the snow-clearing plate 402 will not push the ice crystals in the snow storage tank 403 to the right side of the shell 1, causing the ice crystals pushed to the right side of the shell 1 to accumulate. At the same time, the frost box 502 at the upper end of the driving connecting rod 303 first contacts the second limit block 802, and the contact point is located below the hinge point between the frost box 502 and the driving connecting rod 303. The frost box 502 is pushed to the left by the second limit block 802, and the driving connecting rod 303 continues to move to the left. The frost box 502 will contact the first limit block 801, and the frost box 502 is attached to the upper side of the second limit block 802 and When the driving connecting rod 303 moves further to the left, the frost box 502 can slide along the arc surface of the first limit block 801 and press against the blocking plate 703. As the frost box 502 pushes the blocking plate 703, the blocking plate 703 rotates with the hinge point at the upper end as the center of the circle. The frost box 502 moves further to the left and, under the obstruction of the first limit block 801, the opening of the frost box 502 is lower than the horizontal line, and the ice crystals accumulated in the frost box 502 are poured into the pre-cooling box 701 through the square groove on the pre-cooling box 701. Through the cooperation of the first limit block 801, the second limit block 802, the defrost plate 501 and the frost box 502, the ice crystals condensed in the outer shell 1 are transported to the pre-cooling box 701 while reducing the loss of cold air from the outer shell 1. The low temperature of these ice crystals can be further used to pre-cool the food, thereby improving the quick-freezing quality and reducing the consumption of low-temperature liquid nitrogen.

[0035] When the driving connecting rod 303 moves to the leftmost side of the shell 1, the frost box 502 completes the dumping of the ice crystals in the box. At this time, the driving motor drives the threaded rod 606 to reverse, and the threaded rod 606 pushes the base 605 to move to the right. The locking rod 603 on the left side of the base 605 drives the deicing roller 302 to move to the right and the deicing roller 302 rotates on the condensation net 301. The deicing cones on the deicing roller 302 are inserted into the diamond holes on the condensation net 301 in turn, and the ice crystals in the holes are pierced and squeezed to make them fall into the snow storage tank 403. The deicing roller 302 pushes the driving connecting rod 303 to move to the right. The driving connecting rod 303 drives the upper defrost plate 501, the frost box 502 and the lower threaded column 401, and the snow sweeping plate 402 to move to the right. At this time, the snow sweeping plate 402 is parallel to the horizontal direction and therefore will not push the ice crystals in the snow storage tank 403 to the right.

[0036] When the driving connecting rod 303 moves to the left side of the trapezoidal block 601, as the base 605 moves further to the right, the upper end of the reciprocating push rod 602 slides along the left inclined surface of the trapezoidal block 601, and the reciprocating push rod 602 is squeezed by the trapezoidal block 601 and slides downward in the opening of the base 605. The locking rod 603 rotates around the hinge point of the support rod 604. At this time, the left locking rod 603 is out of contact with the de-icing roller 302. At the same time, the cylindrical slider on the threaded column 401 slides along the arc surface on the right side of the rounded circular groove and drives the threaded column 401 to rotate ninety degrees counterclockwise. At this time, the snowplow 402 on the threaded column 401 rotates ninety degrees counterclockwise, from parallel to the horizontal plane to perpendicular to the horizontal plane.

[0037] When the reciprocating push rod 602 continues to move to the right along the horizontal plane of the trapezoidal block 601, the de-icing roller 302 leaves from under the left locking rod 603, and the sliding bar 901 enters under the right locking rod 603. The reciprocating push rod 602 continues to move to the right and leaves the horizontal plane of the trapezoidal block 601. The reciprocating push rod 602 slides upward in the opening of the base 605 under the thrust of the spring, and the locking rod 603 rotates with the hinge point of the support rod 604 as the center of the circle. Then the sliding bar 901 will be stuck between the locking rod 603 and the support rod 604 on the right.

[0038] When the threaded rod 606 drives the base 605 to move further to the right, the right support rod 604 pushes the slider rod 901 to move to the right, and the slider rod 901 pushes the wiping roller 902 and the scraper 903 to move to the right under the conveyor belt 102. Because the food contains moisture, the food will stick to the conveyor belt 102 due to condensation of moisture, and the food will be moderately thawed by the heating roller 104. After the quick-frozen food leaves the conveyor belt 102, the melted moisture and some ice residues remain on the conveyor belt 102. At this time, the tip of the scraper 903 moving to the right will contact the conveyor belt 102 and scrape off the residue from the conveyor belt 102. The scraped debris falls into the debris box below the scraper 903, and the wiping roller 902 further ensures that the residue on the conveyor belt 102 can be completely removed.

[0039] When the slider rod 901 moves to the right to the heating roller 104, the driving motor drives the threaded rod 606 to rotate forward, the base 605 moves to the left under the push of the threaded rod 606, the slider rod 901 moves to the left under the push of the right locking rod 603, and the scraper 903 and the wiping roller 902 move to the left under the drive of the slider rod 901.

[0040] When the base 605 moves to the right side of the trapezoidal block 601, as the base 605 moves further to the left, the top end of the reciprocating push rod 602 slides along the right inclined surface of the trapezoidal block 601, and the reciprocating push rod 602 slides downward in the opening of the base 605 due to the squeezing effect of the trapezoidal block 601. The locking rod 603 rotates around the hinge point of the support rod 604. At this time, the right locking rod 603 is separated from the contact with the slider rod 901, and then the reciprocating push rod 602 moves to the left along the horizontal plane of the trapezoidal block 601, the slider rod 901 leaves from under the right locking rod 603, and the de-icing roller 302 enters under the left locking rod 603.

[0041] The reciprocating push rod 602 continues to move to the left and leaves the horizontal plane of the trapezoidal block 601. The reciprocating push rod 602 slides upward in the opening of the base 605 under the thrust of the spring. The locking rod 603 can rotate around the hinge point of the support rod 604, and then the de-icing roller 302 is re-inserted between the locking rod 603 and the support rod 604 on the right. Example

[0042] like Figure 2 As shown, a second fan 702 is also included. The second fan 702 is installed at the bottom of the precooling box 701. A square groove is opened on the inner top of the precooling box 701. An inclined groove is opened at the bottom of the precooling box 701. A baffle plate 703 is hinged on the upper end of the square groove of the precooling box 701. The baffle plate 703 corresponds to the size of the square groove. A frost guide plate 704 is provided in the precooling box 701. A guide plate 705 is fixedly connected to the inner wall of the frost guide plate 704. An air collecting tube 706 is connected to the bottom of the frost guide plate 704. The bottom of the frost guide plate 704 is in an inclined state. The bottom of the frost guide plate 704 is connected to the inclined groove, and the bottom of the precooling box 701 is connected to the snow storage tank 403.

[0043] The cavity between the frost guide plate 704 and the guide plate 705 is where the conveyor belt 102 passes through. The ice crystals condensed on the top of the shell 1 are scraped off the inner wall of the shell 1 and are located in the frost box 502. When the frost box 502 moves to the right side of the pre-cooling box 701, the frost box 502 is blocked by the first limit block 801 and the second limit block 802, and rotates around the hinge point in the middle of the frost box 502 as the center of the circle and pushes open the blocking plate 703, pouring the ice crystals in the frost box 502 into the pre-cooling box 701, and the poured ice crystals fall on the inclined surface of the frost guide plate 704 and are sucked by the frost guide plate 704. The heat of the cavity between the frost guide plate 704 and the guide plate 705 is collected, so as to realize the pre-cooling of the conveyor belt 102 passing through this place and the food on the conveyor belt 102. It should be noted that the pre-cooling at this time will not reduce the temperature of the food to below zero degrees. The ice crystals on the inclined surface slide from the top sides of the frost guide plate 704 to the bottom of the pre-cooling box 701 under the action of gravity. Since the air collecting cylinder 706 is covered above the second fan 702, the gas flow rate at the air collecting cylinder 706 is relatively large, and this position will belong to the low pressure area, which can make the pre-cooling box 70 The air at the bottom of the conveyor 102 flows to the second fan 702, and the ice crystals falling from the frost guide plate 704 and the ice crystals pushed into the pre-cooling box 701 by the snow sweeper 402 are affected by the air flow to the low pressure area and move to the second fan 702 synchronously, and then are blown to the lower side of the guide plate 705 by the second fan 702. The ice crystals on the lower side of the guide plate 705 absorb the heat of the cavity between the frost guide plate 704 and the guide plate 705 through the guide plate 705, thereby realizing the pre-cooling of the food on the conveyor belt 102 passing through this place. The ice crystals absorb the heat of the frost guide plate 704 and the guide plate 705. 05, the water melts into liquid water, and due to its own adsorption force and the blowing force of the second fan 702, the water moves to both sides along the guide plate 705, and then falls into the inside of the frost guide plate 704 and under the guide plate 705, and is finally discharged through the bottom inclined surface of the frost guide plate 704 and the bottom inclined groove of the pre-cooling box 701. Through the cooperation of the pre-cooling box 701, the frost guide plate 704 and the guide plate 705, the ice crystals from the outer shell 1 perform inter-wall heat exchange with the food on the conveyor belt 102, thereby ensuring that the humidity of the food is not increased and pre-cooling of the food is achieved.

[0044] The above-mentioned embodiments only express the preferred implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person skilled in the art, several modifications, improvements and substitutions can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the attached claims.

Claims

1. A meat product quick-freezing production device, comprising a housing (1), a precooling box (701) is installed on one side of the housing (1), a baffle (101) is symmetrically fixedly connected to one side of the precooling box (701), a first rotating roller is rotatably connected between the two baffles (101), a second rotating roller is rotatably connected between the side walls of the housing (1), a conveyor belt (102) is transmission-connected between the first rotating roller and the second rotating roller, a circular hole is arrayed on the conveyor belt (102), an air hole is opened on the top of the housing (1), and the air hole on the top of the housing (1) is connected to a turbine pump (2), characterized in that: The precooling box (701) further comprises a second fan (702), the second fan (702) being installed at the bottom of the precooling box (701), a square groove being provided at the top of the inner side of the precooling box (701), an inclined groove being provided at the bottom of the precooling box (701), a blocking plate (703) being hingedly connected to the upper end of the square groove of the precooling box (701), a frost guide plate (704) being provided in the precooling box (701), a flow guide plate (705) being fixedly connected to the inner wall of the frost guide plate (704), an air collecting tube (706) being connected to the bottom of the frost guide plate (704), the bottom of the frost guide plate (704) being in an inclined state, and the bottom of the frost guide plate (704) being connected to the inclined groove.

2. The meat product quick freezing production device according to claim 1, characterized in that: The invention also comprises a desublimation net (301), the desublimation net (301) is horizontally symmetrically fixed to the inner wall of the outer shell (1), the desublimation net (301) is provided with diamond-shaped holes in a staggered array, a deicing roller (302) is provided on the desublimation net (301), a tetrahedral deicing cone is fixedly connected to the deicing roller (302) in a staggered array in a circumferential direction, and the deicing cones in the staggered array on the deicing roller (302) correspond to the diamond-shaped holes on the desublimation net (301), and driving connecting rods (303) are slidably connected to both sides of the inner wall of the outer shell (1), and the deicing roller (302) rotates and passes through the driving connecting rod (303).

3. The meat product quick freezing production device according to claim 2, characterized in that: The invention also comprises a threaded column (401), the lower end of the driving connecting rod (303) is rotatably connected to the threaded column (401), a cylindrical slider is fixedly connected to one side surface of the threaded column (401), a snow sweeper (402) is fixedly connected to the other side surface of the threaded column (401), snow storage grooves (403) are fixedly connected to both sides of the bottom of the housing (1), the snow sweeper (402) is located in the snow storage groove (403) and slides, and the inner walls of both sides of the housing (1) are provided with rounded circular grooves, and the cylindrical slider on the threaded column (401) slides in the rounded circular grooves.

4. The meat product quick freezing production device according to claim 3, characterized in that: It also includes a defrost plate (501) which is slidably mounted on the top of the inner wall of the housing (1), with drive connecting rods (303) fixedly connected to both ends of the defrost plate (501), a frost box (502) hingedly connected between the two drive connecting rods (303), and a U-shaped frost box (502) located directly below the defrost plate (501).

5. The meat product quick freezing production device according to claim 4, characterized in that: The invention also comprises a trapezoidal block (601), a horizontal through groove is formed on the wall surface of one side of the inner wall of the housing (1), the trapezoidal block (601) is fixedly connected to the upper side of the horizontal through groove, a base (605) is slidably connected in the horizontal through groove, a reciprocating push rod (602) is slidably penetrated on the horizontal plate surface of the base (605), a spring is connected between the reciprocating push rod (602) and the horizontal plate surface of the base (605), support rods (604) are symmetrically arranged on the horizontal plate surface of the base (605), the tops of the symmetrical support rods (604) are hinged with locking rods (603), one ends of the two locking rods (603) are hinged to the reciprocating push rod (602), a threaded rod (606) is threadedly connected to the bottom of the base (605), and a driving motor is installed at one end of the threaded rod (606).

6. The meat product quick freezing production device according to claim 5, characterized in that: It also includes a first limiting block (801), and the first limiting block (801) and the second limiting block (802) are fixedly connected to the outer wall of the precooling box (701).

7. A meat product quick freezing production device according to claim 6, characterized in that: It further includes a slider rod (901). Symmetrically fixed to the top of one end of the outer shell (1) are square chutes, and a slider rod (901) is slidably connected in each of the two square chutes. A water wiping roller (902) is rotatably connected between the two slider rods (901). The water wiping roller (902) is in rotational contact with the conveyor belt (102). A scraping plate (903) is fixedly connected between the two slider rods (901). The scraping plate (903) slides on the conveyor belt (102). A debris box is placed below the scraping plate (903) and the debris box is located inside the outer shell (1).

8. The meat product quick freezing production device according to claim 7, characterized in that: It further includes a first blower (105). The first blower (105) is installed at the bottom of the outer shell (1). A U-shaped through groove is formed in the top of the outer shell (1), and a filter screen (103) is installed at the lower end of the U-shaped through groove at the top of the outer shell (1).

9. The meat product quick freezing production device according to claim 8, characterized in that: It further includes a heating roller (104). The heating roller (104) is rotatably installed between the two inner walls of the outer shell (1), and the heating roller (104) rotates inside the conveyor belt (102).

10. The meat product quick freezing production device according to claim 9, characterized in that: Two groups of supporting rollers that are all in contact with the conveyor belt (102) are rotatably arranged inside the outer shell (1), and the two groups of supporting rollers are symmetrically arranged.

Images