Walnut crushing device based on food deep processing

Abstract

The invention relates to the technical field of walnut processing, and provides a walnut crushing device based on food deep processing, the walnut crushing device comprises a case, the case is internally provided with a feeding assembly, a stock bin, a transmission assembly, a crushing chamber, a cooling assembly and a discharging assembly, the feeding assembly is located above the stock bin and communicates with the stock bin, and the conveying assembly is located above the feeding assembly and communicates with the discharging assembly; the cooling assembly comprises a liquid nitrogen bottle and a first connecting pipe, the liquid nitrogen bottle is communicated with the stock bin through the first connecting pipe, the conveying assembly comprises a conveying cylinder and a second connecting pipe, the conveying cylinder is communicated with the bottom of the stock bin, and the conveying cylinder is communicated with the crushing chamber through the second connecting pipe; walnut particles are regularly and orderly subjected to coarse crushing, intermediate crushing and fine crushing through the first sieve ring and the second sieve ring, the particle size is gradually reduced, the total time is shorter, and the crushing efficiency is improved; particles are screened after crushing each time, so that the finished product particles are uniform; the walnut kernels are smashed into small blocks, so that the consumption of nitrogen required by cooling is reduced, and the cooling is more complete.

Description

Technical Field

[0001] The invention relates to the technical field of walnut processing, in particular to a walnut crushing device based on food deep processing. Background Art

[0002] The products of walnut in the field of deep processing of food include walnut powder, walnut oil, walnut milk, etc. The production process of walnut powder is as follows: shell and wash the walnuts, peel the cleaned walnut kernels by chemical methods (such as soaking in alkali solution) or physical methods (such as manual peeling after baking), dry the peeled walnut kernels to remove moisture for easy storage and crushing, crush the dried walnut kernels to obtain walnut powder, sieve the crushed walnut powder to remove larger particles, homogenize the sieved walnut powder to make the walnut powder particles smaller and more uniform. The homogenization process can be carried out by a high-pressure homogenizer or ultrasonic homogenization, and the homogenized walnut powder slurry is spray-dried to obtain dry walnut powder.

[0003] The following problems are prone to occur during the production of walnut powder: 1. Walnuts have a high fat content (60%-70%). When crushed, the friction and temperature rise, causing the oil to melt, resulting in equipment adhesion and powder agglomeration. After the oil and fine powder are mixed, they adhere to the screen, reducing the screening efficiency. Patent CN203002446U discloses a micronization device for high-oil plant raw materials, which includes a refrigeration unit, a freezer, a refrigerant storage tank, a refrigerant delivery pump, an insulation layer and a cooling cavity, wherein: the refrigeration unit is connected to the freezer and the refrigerant storage tank through a copper pipe; the refrigerant storage tank is connected to the vibrating mill circulating cooling system; the insulation layer is a thermal insulation and noise reduction composite material adhered to the surface of the cooling cavity. Since the circulating cooling system in the vibration mill always keeps the oily raw materials ground in a frozen brittle state, the phenomenon of oil coming out and sticking to the wall during the grinding process is avoided, so that the raw materials can be ground into fine powder, and more than 95% of the raw materials can reach more than 500 meshes; the system has a compact structure, small investment scale, low operating cost, and is easy to mass produce. Although this patent can avoid the phenomenon of oil coming out and sticking to the wall during the grinding process, the energy consumption required for freezing in mass production is large, which increases the cost; 2. Most of the existing crushing equipment adopts one-time crushing, which easily leads to the mixing of fine powder and coarse particles, and the particle size distribution range is wide, which easily leads to over-crushing, increasing the difficulty of subsequent screening, and it is difficult to quickly reach the target particle size in one crushing, and the efficiency is low. At the same time, the homogenization treatment is carried out, which increases the equipment cost and prolongs the production time.

[0004] Therefore, the present invention provides a walnut crushing device based on food deep processing. Summary of the invention

[0005] The invention provides a walnut crushing device based on food deep processing, which improves the crushing accuracy through classification and screening to solve the problems existing in the background technology.

[0006] The technical solution of the present invention is as follows: A walnut crushing device based on food deep processing comprises: a chassis, in which a feeding component, a silo, a transmission component, a crushing chamber, a cooling component and a feeding component are installed; The feeding assembly is located above the silo and communicates with the silo, the cooling assembly includes a liquid nitrogen bottle and a connecting pipe 1, the liquid nitrogen bottle is connected to the silo through the connecting pipe 1, the transmission assembly includes a transmission cylinder and a connecting pipe 2, the transmission cylinder is connected to the bottom of the silo, the transmission cylinder is connected to the crushing chamber through the connecting pipe 2, the unloading assembly includes a connecting pipe 3 and a cyclone separator, the cyclone separator is connected to the crushing chamber through the connecting pipe 3; The grinding chamber includes a bottom shell and an outer shell which are arranged opposite to each other. A roller is rotatably connected to one side of the outer shell, and a blade group and a grinding block group are fixedly connected to the roller. A screen ring 1 and a screen ring 2 are rotatably connected to one side of the bottom shell. The outer diameters of the screen ring 1, the screen ring 2, the grinding block group and the blade group decrease in sequence.

[0007] Preferably, the feeding assembly comprises a feeding chamber, in which two spiral rollers are rotatably connected, and a motor for driving the spiral rollers to rotate is installed on the feeding chamber.

[0008] Preferably, the two ends of the connecting pipe are respectively fixedly connected to the mouth of the liquid nitrogen bottle and the top of the silo, a switch valve is installed at the end of the connecting pipe close to the liquid nitrogen bottle, the other end of the connecting pipe passes through the silo and is fixedly connected to the silo, and a nozzle is installed at the end of the connecting pipe passing through the silo.

[0009] Preferably, the transmission assembly includes an auger rotatably connected in a transmission cylinder, and a second motor for driving the auger to rotate is installed on the transmission cylinder, and both ends of the second connecting pipe are fixedly connected to the top of the transmission cylinder and the center of the crushing chamber respectively.

[0010] Preferably, the grinding block group includes a plurality of rotating blocks fixedly connected to the outer side of the rotating roller, a grinding tooth one is provided on the side of the rotating block close to the screen ring two, a plurality of grinding blocks are fixedly connected to the inner side of the screen ring two, a grinding tooth two is provided on one side of the grinding block, the grinding tooth one and the grinding tooth two are staggered, a grinding tooth three is provided on the outer side of the screen ring two, a grinding tooth four is provided on the inner side of the screen ring one, the grinding tooth three and the grinding tooth four are staggered, and a sieve hole one and a sieve hole two are respectively provided on the sieve ring one and the sieve ring two.

[0011] Preferably, one end of the sieve ring 2 close to the outer shell is fixedly connected to a sealing ring 1, and the sealing ring 1 is fitted with the roller, one end of the sieve ring 1 close to the outer shell is fixedly connected to a sealing ring 2, and the sealing ring 2 is fitted with the sealing ring 1, and the bottom shell is fixedly connected to a discharge ring on the outside of the sieve ring 1, the cross-section of the discharge ring is L-shaped, and one end of the discharge ring is fitted with one end of the sieve ring 1 close to the outer shell.

[0012] Preferably, the sealing ring 2 and the sealing ring 1 are fixedly connected to the gear ring 1 and the gear ring 2 on one side close to the outer shell respectively, the outer side of the roller is fixedly connected to the gear 1, the outer shell is provided with a motor 3 for driving the roller to rotate, the outer shell is provided with gear 2, gear 3 and gear 4 coaxially rotating between the outer shell and the discharge ring, the gear 2 is meshed with the gear 1, the gear 3 is meshed with the gear ring 2, and the gear 4 is meshed with the gear ring 1.

[0013] Preferably, an oblique hole is provided on the discharge ring, a blower is installed in the chassis, an air outlet pipe is installed on the blower, and the other end of the air outlet pipe passes through the outer shell and is fixedly connected to the outer shell.

[0014] Preferably, one end of the connecting pipe three passes through the discharge ring and is fixedly connected to the discharge ring, and the other end is fixedly connected to and communicates with the input port of the cyclone separator. The upper discharge port of the cyclone separator is fixedly connected with a connecting pipe four, and the other end of the connecting pipe four passes through the silo and is fixedly connected to the silo.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention uses the first and second screen rings to regularly and orderly perform coarse, medium and fine crushing on the walnut particles, gradually reducing the particle size, shortening the total time and improving the crushing efficiency; and sieving the particles after each crushing to ensure that the finished product particles are uniform; the crushed particle size is controlled by multi-stage crushing, avoiding excessive crushing and improving the yield.

[0016] 2. The present invention opens the switch valve so that after the broken walnut kernels enter the silo, the nitrogen sprayed from the liquid nitrogen bottle enters the silo through the connecting pipe 1 and is evenly sprayed on the walnut kernels through the nozzle. Because the walnut kernels have been broken into small pieces, only a small amount of nitrogen is needed to cool the walnut kernels, thereby reducing nitrogen consumption and making the cooling more complete.

[0017] 3. The present invention cools the walnut kernels to make them easier to crush, and can prevent oil from overflowing during crushing, while inhibiting oil oxidation and retaining the nutrition of the walnut kernels; and the second motor is started to drive the auger to rotate, so that the walnut kernels in the silo enter the auger in the transmission cylinder, and are transmitted to the second connecting pipe, and then enter the crushing chamber, so that the walnut kernels are crushed regularly and orderly, and the uniformity of the crushing is improved.

[0018] 4. The present invention transmits the purified nitrogen from the upper discharge port of the cyclone separator to the silo through the connecting pipe 4 to cool the walnut kernel particles, thereby avoiding nitrogen waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a perspective view of the pulverizing device of the present invention; Figure 2 It is a three-dimensional diagram of the internal structure of the chassis of the present invention; Figure 3 It is a cross-sectional view of the connection structure of the feeding assembly, the silo, the transmission assembly and the cooling assembly of the present invention; Figure 4 is a cross-sectional view of a pulverizing chamber of the present invention; Figure 5 is a cross-sectional view of the pulverizing chamber of the present invention from another perspective; Figure 6 It is a cross-sectional perspective view of the internal structure of the pulverizing chamber of the present invention.

[0020] In the figure: 1. Chassis; 2. Feeding assembly; 21. Feeding chamber; 22. Spiral roller; 23. Motor 1; 3. Silo; 4. Transmission assembly; 41. Transmission cylinder; 42. Connecting pipe 2; 43. Auger; 44. Motor 2; 5. Grinding chamber; 51. Bottom shell; 52. Outer shell; 53. Roller; 54. Blade assembly; 55. Grinding block assembly; 551. Rotating block; 552. Grinding tooth 1; 56. Screen ring 1; 57. Screen ring 2; 58. Grinding block; 59. Grinding tooth 2; 510. Grinding tooth 3; 511. Grinding tooth 4; 512. Screen hole 1; 513. Sieve hole two; 514. Sealing ring one; 515. Sealing ring two; 516. Discharging ring; 517. Gear ring one; 518. Gear ring two; 519. Gear one; 520. Motor three; 521. Gear two; 522. Gear three; 523. Gear four; 524. Oblique hole; 6. Cooling component; 61. Liquid nitrogen bottle; 62. Connecting pipe one; 63. Switch valve; 64. Nozzle; 7. Discharging component; 71. Connecting pipe three; 72. Cyclone separator; 73. Connecting pipe four; 8. Blower; 81. Air outlet pipe. DETAILED DESCRIPTION

[0021] The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0022] Embodiment 1: like Figure 1-Figure 6 As shown, the present invention provides a walnut crushing device based on deep processing of food, comprising: a chassis 1, wherein a feeding component 2, a silo 3, a transmission component 4, a crushing chamber 5, a cooling component 6 and a feeding component 7 are installed in the chassis 1; The feeding assembly 2 is located above the silo 3 and communicates with the silo 3. The cooling assembly 6 includes a liquid nitrogen bottle 61 and a connecting pipe 1 62. The liquid nitrogen bottle 61 is connected to the silo 3 through the connecting pipe 1 62. The transmission assembly 4 includes a transmission cylinder 41 and a connecting pipe 2 42. The transmission cylinder 41 is connected to the bottom of the silo 3. The transmission cylinder 41 is connected to the crushing chamber 5 through the connecting pipe 2 42. The unloading assembly 7 includes a connecting pipe 3 71 and a cyclone separator 72. The cyclone separator 72 is connected to the crushing chamber 5 through the connecting pipe 3 71. like Figure 4 , Figure 5 As shown, the grinding chamber 5 includes a bottom shell 51 and an outer shell 52 which are arranged opposite to each other. A roller 53 is rotatably connected to one side of the outer shell 52, and a blade group 54 and a grinding block group 55 are fixedly connected to the roller 53. A screen ring 1 56 and a screen ring 2 57 are rotatably connected to one side of the bottom shell 51. The outer diameters of the screen ring 1 56, the screen ring 2 57, the grinding block group 55 and the blade group 54 decrease in sequence.

[0023] like Figure 2 , Figure 3 As shown, the feeding assembly 2 includes a feeding chamber 21, in which two spiral rollers 22 are rotatably connected, and a motor 23 for driving the spiral rollers 22 to rotate is installed on the feeding chamber 21.

[0024] like Figure 2 , Figure 3 As shown, both ends of the connecting tube 62 are fixedly connected to the mouth of the liquid nitrogen bottle 61 and the top of the silo 3 respectively, a switch valve 63 is installed at one end of the connecting tube 62 close to the liquid nitrogen bottle 61, the other end of the connecting tube 62 passes through the silo 3 and is fixedly connected to the silo 3, and a nozzle 64 is installed at one end of the connecting tube 62 passing through the silo 3.

[0025] like Figure 1-Figure 3 As shown, during the walnut powder production process, firstly, the motor 23 is started to drive the spiral roller 22 to rotate, and the walnut kernels are placed in the feeding chamber 21. The two spiral rollers 22 are connected by two gears so that the two spiral rollers 22 rotate in opposite directions, and the walnut kernels are broken into small pieces by the shear force between the two spiral rollers 22, so that the walnut kernels can be initially broken by low-speed rotation, and less heat is generated, so that the oil overflow of the walnut kernels is reduced; at the same time, the switch valve 63 is opened, and after the broken walnut kernels enter the silo 3, the nitrogen sprayed from the liquid nitrogen bottle 61 enters the silo 3 through the connecting pipe 62, and is evenly sprayed on the walnut kernels through the nozzle 64. Because the walnut kernels have been broken into small pieces, only a small amount of nitrogen is needed to cool the walnut kernels, which reduces the nitrogen consumption and makes the cooling more complete.

[0026] like Figure 2 , Figure 3As shown, the transmission assembly 4 includes an auger 43 rotatably connected to a transmission cylinder 41 , a motor 44 for driving the auger 43 to rotate is installed on the transmission cylinder 41 , and both ends of the connecting pipe 42 are fixedly connected to the top of the transmission cylinder 41 and the center of the crushing chamber 5 respectively.

[0027] like Figure 6 As shown, the grinding block group 55 includes a plurality of rotating blocks 551 fixedly connected to the outer side of the rotating roller 53, a grinding tooth 1 552 is arranged on the side of the rotating block 551 close to the screen ring 2 57, a plurality of grinding blocks 58 are fixedly connected to the inner side of the screen ring 2 57, a grinding tooth 2 59 is arranged on one side of the grinding block 58, and the grinding teeth 1 552 and the grinding teeth 2 59 are staggered, a grinding tooth 3 510 is arranged on the outer side of the screen ring 2 57, a grinding tooth 4 511 is arranged on the inner side of the screen ring 1 56, and the grinding teeth 3 510 and the grinding teeth 4 511 are staggered, and a sieve hole 1 512 and a sieve hole 2 513 are respectively provided on the screen ring 1 56 and the screen ring 2 57.

[0028] like Figure 4 , Figure 5 , Figure 6 As shown, one end of the sieve ring 57 close to the outer shell 52 is fixedly connected to the sealing ring 514, and the sealing ring 514 is fitted with the roller 53. One end of the sieve ring 56 close to the outer shell 52 is fixedly connected to the sealing ring 515, and the sealing ring 515 is fitted with the sealing ring 514. The bottom shell 51 is fixedly connected to the outer side of the sieve ring 56 with a discharge ring 516. The cross-section of the discharge ring 516 is L-shaped, and one end of the discharge ring 516 is fitted with the end of the sieve ring 56 close to the outer shell 52.

[0029] The sieve ring 1 56 and the sieve ring 2 57 are sealed by the sealing ring 2 515 and the sealing ring 1 514 to prevent the powder from overflowing during the crushing process.

[0030] The sealing ring 2 515 and the sealing ring 1 514 are fixedly connected to the side of the outer shell 52 with the gear ring 1 517 and the gear ring 2 518 respectively, and the gear 1 519 is fixedly connected to the outer side of the roller 53. The outer shell 52 is equipped with a motor 3 520 for driving the roller 53 to rotate. Gear 2 521, gear 3 522 and gear 4 523 rotate coaxially between the outer shell 52 and the discharge ring 516. Gear 2 521 is meshed with gear 1 519, gear 3 522 is meshed with gear ring 2 518, and gear 4 523 is meshed with gear ring 1 517.

[0031] The cooled walnut kernels are easier to crush, and can prevent oil from overflowing during crushing, while inhibiting oil oxidation, retaining the nutrition of the walnut kernels; start motor 2 44 to drive the auger 43 to rotate, and the walnut kernels in the silo 3 enter the auger 43 in the transmission cylinder 41, and are transmitted to the connecting pipe 2 42, and then enter the crushing chamber 5, so that the walnut kernels are crushed regularly and orderly, and the uniformity of crushing is improved; then start motor 3 520 to drive the roller 53 to rotate, and drive the blade group 54 and the grinding block group 55 to rotate, because the gear 1 519 on the roller 53 is meshed with the gear 2 521, the gear 3 522 is meshed with the gear ring 2 518, and the gear 4 523 is meshed with the gear ring 1 517, the gear 2 521 and the gear 522 are meshed with the gear ring 2 518, and the gear 4 523 is meshed with the gear ring 1 517. Wheel three 522 and gear four 523 are coaxially connected, so they can drive screen ring one 56 and screen ring two 57 to rotate; the blade group 54 rotates to coarsely crush the walnut kernels, and the crushed walnut kernels reach between the grinding block group 55 and the screen ring two 57 under the action of centrifugal force, and are ground by grinding teeth one 552 on the rotating block 551 and grinding teeth two 59 on the screen ring two 57 to achieve medium crushing. The crushed walnut kernels are close to the screen ring two 57 under the centrifugal force, and enter between the screen ring one 56 and the screen ring two 57 through the screen hole two 513, and then are ground by grinding teeth three 510 on the screen ring two 57 and grinding teeth four 511 on the screen ring one 56 to achieve fine crushing, and enter between the discharge circle 516 and the screen ring one 56 through the screen hole one 512 to complete the crushing of the walnut kernels.

[0032] The rotating screen ring 1 56 and the screen ring 2 57 prevent the walnut particles from being trapped and blocked on the screen ring, thereby improving the screening effect.

[0033] By regularly and orderly coarsely, medium and finely crushing the walnut particles, the particle size is gradually reduced, the total time is shortened, and the crushing efficiency is improved; and the particles are screened after each crushing to ensure that the finished particles are uniform; the crushed particle size is controlled through multi-stage crushing, which avoids excessive crushing and improves the yield of finished products.

[0034] like Figure 5 , Figure 6 As shown, it should be noted that the size of grinding tooth three 510 and grinding tooth four 511 is smaller than the size of grinding tooth one 552 and grinding tooth two 59, and the gap between screen ring one 56 and screen ring two 57 is smaller than the gap between screen ring two 57 and grinding block group 55, thereby improving the crushing accuracy.

[0035] It should be noted that the number of teeth on gear 1 519 is less than that on gear 2 521 , and the meshing transmission between gear 2 521 and gear 1 519 increases the rotation speed of gear 2 521 , gear 3 522 and gear 4 523 , thereby increasing the rotation speed of gear ring 1 517 and gear ring 2 518 , and further increasing the rotation speed of screen ring 1 56 and screen ring 2 57 , and the transmission ratio between gear ring 2 518 and gear 3 522 is less than the transmission ratio between gear ring 1 517 and gear 4 523 , thereby gradually increasing the rotation speed of blade group 54 , screen ring 2 57 and screen ring 1 56 , and further improving the crushing accuracy, thereby achieving step-by-step crushing; and as the rotation speeds of blade group 54 , screen ring 2 57 and screen ring 1 56 gradually increase, there is a speed difference between grinding gear 1 552 and grinding gear 2 59 , grinding gear 3 510 and grinding gear 4 511 , thereby increasing the collision friction of walnut particles, and further improving the efficiency and accuracy of crushing.

[0036] like Figure 5 As shown, an inclined hole 524 is opened on the discharge ring 516 , a blower 8 is installed in the chassis 1 , an air outlet pipe 81 is installed on the blower 8 , and the other end of the air outlet pipe 81 passes through the outer shell 52 and is fixedly connected to the outer shell 52 .

[0037] One end of the connecting pipe three 71 passes through the discharge ring 516 and is fixedly connected to the discharge ring 516, and the other end is fixedly connected to and communicates with the input port of the cyclone separator 72. The upper discharge port of the cyclone separator 72 is fixedly connected with a connecting pipe four 73, and the other end of the connecting pipe four 73 passes through the silo 3 and is fixedly connected to the silo 3.

[0038] like Figure 2 , Figure 5 As shown, the blower 8 is started, and air is blown between the outer shell 52 and the discharge ring 516 through the air outlet pipe 81, and the walnut powder in the discharge ring 516 is blown downward into the connecting pipe three 71 through the inclined hole 524, and enters into the cyclone separator 72. The walnut powder and nitrogen are guided by the guide blades in the cyclone separator 72, and a strong rotational motion is generated. The airflow spirals downward along the cylinder and enters the cyclone cylinder. During the rotation process, the walnut powder with a larger density is thrown toward the wall of the device under the action of centrifugal force. Once these particles contact the wall of the device, they lose their inertial force and fall along the cylinder wall under the action of gravity, and are finally discharged from the bottom of the cyclone separator 72. At the same time, the rotating and descending external cyclonic airflow continuously flows into the central part of the separator during the descent process, forming a centripetal radial airflow. This part of the airflow constitutes a rotating upward internal cyclonic flow. Finally, the purified nitrogen is transmitted from the upper discharge port of the cyclone separator 72 to the silo 3 through the connecting pipe four 73 to cool the walnut kernel particles and avoid nitrogen waste.

[0039] The embodiments of the present invention are provided for the purpose of illustration and description. Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A walnut crushing device based on food deep processing, comprising: A machine box (1), characterized in that a feeding assembly (2), a silo (3), a transmission assembly (4), a crushing chamber (5), a cooling assembly (6) and a material discharge assembly (7) are installed in the machine box (1); The feeding assembly (2) is located above the silo (3) and communicates with the silo (3); the cooling assembly (6) comprises a liquid nitrogen bottle (61) and a connecting pipe 1 (62); the liquid nitrogen bottle (61) is communicated with the silo (3) via the connecting pipe 1 (62); the transmission assembly (4) comprises a transmission cylinder (41) and a connecting pipe 2 (42); the transmission cylinder (41) is communicated with the bottom of the silo (3); the transmission cylinder (41) is communicated with the crushing chamber (5) via the connecting pipe 2 (42); the unloading assembly (7) comprises a connecting pipe 3 (71) and a cyclone separator (72); the cyclone separator (72) is communicated with the crushing chamber (5) via the connecting pipe 3 (71); The grinding chamber (5) comprises a bottom shell (51) and an outer shell (52) which are arranged opposite to each other; a roller (53) is rotatably connected to one side of the outer shell (52); a blade group (54) and a grinding block group (55) are fixedly connected to the roller (53); a screen ring 1 (56) and a screen ring 2 (57) are rotatably connected to one side of the bottom shell (51); the outer diameters of the screen ring 1 (56), the screen ring 2 (57), the grinding block group (55) and the blade group (54) decrease in sequence.

2. The walnut crushing device based on food deep processing according to claim 1, characterized in that: The feeding assembly (2) comprises a feeding chamber (21), in which two spiral rollers (22) are rotatably connected, and a motor (23) for driving the spiral rollers (22) to rotate is installed on the feeding chamber (21).

3. The walnut crushing device based on food deep processing according to claim 1 is characterized in that: The two ends of the connecting pipe 1 (62) are respectively fixedly connected to the mouth of the liquid nitrogen bottle (61) and the top of the silo (3); an on-off valve (63) is installed at one end of the connecting pipe 1 (62) close to the liquid nitrogen bottle (61); the other end of the connecting pipe 1 (62) passes through the silo (3) and is fixedly connected to the silo (3); and a nozzle (64) is installed at one end of the connecting pipe 1 (62) passing through the silo (3).

4. The walnut crushing device based on food deep processing according to claim 1, characterized in that: The transmission assembly (4) comprises an auger (43) rotatably connected to a transmission cylinder (41); a second motor (44) for driving the auger (43) to rotate is mounted on the transmission cylinder (41); and two ends of the second connecting pipe (42) are respectively fixedly connected to the top of the transmission cylinder (41) and the center of the pulverizing chamber (5).

5. The walnut crushing device based on food deep processing according to claim 1, characterized in that: The grinding block group (55) comprises a plurality of rotating blocks (551) fixedly connected to the outside of the rotating roller (53); a grinding tooth 1 (552) is arranged on a side of the rotating block (551) close to the second screen ring (57); a plurality of grinding blocks (58) are fixedly connected to the inside of the second screen ring (57); a grinding tooth 2 (59) is arranged on one side of the grinding block (58); the grinding tooth 1 (552) and the grinding tooth 2 (59) are arranged in an alternating manner; a grinding tooth 3 (510) is arranged on the outside of the second screen ring (57); a grinding tooth 4 (511) is arranged on the inside of the first screen ring (56); the grinding tooth 3 (510) and the grinding tooth 4 (511) are arranged in an alternating manner; and a sieve hole 1 (512) and a sieve hole 2 (513) are respectively provided on the first screen ring (56) and the second screen ring (57).

6. The walnut crushing device based on food deep processing according to claim 1, characterized in that: The end of the sieve ring 2 (57) close to the outer shell (52) is fixedly connected to a sealing ring 1 (514), and the sealing ring 1 (514) is fitted with the roller (53); the end of the sieve ring 1 (56) close to the outer shell (52) is fixedly connected to a sealing ring 2 (515), and the sealing ring 2 (515) is fitted with the sealing ring 1 (514); the bottom shell (51) is fixedly connected to a discharge ring (516) on the outside of the sieve ring 1 (56), and the cross-section of the discharge ring (516) is L-shaped, and one end of the discharge ring (516) is fitted with the end of the sieve ring 1 (56) close to the outer shell (52).

7. The walnut crushing device based on food deep processing according to claim 6, characterized in that: The sealing ring 2 (515) and the sealing ring 1 (514) are respectively fixedly connected to the gear ring 1 (517) and the gear ring 2 (518) on the side close to the outer shell (52); the outer side of the roller (53) is fixedly connected to the gear ring 1 (519); the outer shell (52) is provided with a motor 3 (520) for driving the roller (53) to rotate; the outer shell (52) and the discharge ring (516) are coaxially rotated with a gear 2 (521), a gear 3 (522) and a gear 4 (523); the gear 2 (521) is meshed with the gear 1 (519); the gear 3 (522) is meshed with the gear ring 2 (518); and the gear 4 (523) is meshed with the gear ring 1 (517).

8. The walnut crushing device based on food deep processing according to claim 6, characterized in that: An inclined hole (524) is provided on the discharge ring (516), a blower (8) is installed in the chassis (1), an air outlet pipe (81) is installed on the blower (8), and the other end of the air outlet pipe (81) passes through the outer shell (52) and is fixedly connected to the outer shell (52).

9. The walnut crushing device based on food deep processing according to claim 6, characterized in that: One end of the connecting pipe three (71) passes through the discharge ring (516) and is fixedly connected to the discharge ring (516), and the other end is fixedly connected to and communicates with the input port of the cyclone separator (72). The upper discharge port of the cyclone separator (72) is fixedly connected to the connecting pipe four (73), and the other end of the connecting pipe four (73) passes through the silo (3) and is fixedly connected to the silo (3).

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