Food low-temperature wall breaking device

Abstract

The utility model provides a food low-temperature wall breaking device which comprises a shell and a controller, a first feeding hopper is arranged at the top of the shell, a plurality of conveying belts are arranged in the shell, a second feeding hopper is communicated with a stirring barrel, the stirring barrel is communicated with a transmission pump through a first pipeline, the transmission pump is communicated with a wall breaking box through a second pipeline, and the wall breaking box is arranged in the shell. A third rotating shaft is arranged in the wall breaking box and sleeved with a millstone, a plurality of grinding columns are arranged on the top face of the millstone in a rolling mode, the grinding columns and the millstone conduct grinding to conduct grinding wall breaking on materials, the materials are ground into powder, a refrigerator, a condenser, a temperature sensor and a vacuum sensor are arranged on the inner wall of the shell, and a vacuum pump is arranged at the top of the shell. The vacuum pump is communicated with the shell through the vacuum pipe, the wall breaking mechanism is arranged in the freeze-drying equipment, the temperature and dryness of materials can be kept, moisture regain and oxidation in the conveying process are avoided, the low-temperature wall breaking effect is improved, the whole device is compact in structure, and the occupied area is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of food processing, in particular to a low-temperature food wall breaking device. Background Art

[0002] In the field of food processing, low-temperature wall breaking technology has a wide range of applications. In the processing of fruits and vegetables, low-temperature airflow wall breaking separation technology can be used to destroy the cell walls in fruits and vegetables, thereby increasing the release rate of nutrients and the content of soluble substances in fruits and vegetables; in dairy product processing, low-temperature airflow wall breaking separation technology can be used to destroy milk protein and improve the texture and taste of dairy products; in grain processing, low-temperature airflow wall breaking separation technology can be used to destroy starch and protein in grains, thereby improving the digestibility and nutritional value of grains.

[0003] The general low-temperature wall breaking device is composed of a low-temperature airflow generator, an airflow conveying pipeline and a wall breaking device. The advantages of low-temperature wall breaking technology: rapid freezing, vacuum ice dehydration, preservation of the original nutrients of food, and good rehydration, without any additives, belonging to pure natural food, avoiding the damage of high temperature to food, and is beneficial to human absorption. The wall breaking temperature is generally around minus 30 degrees Celsius, breaking the cell walls of plants and processed cells, destroying the cell walls of plants, so that the effective ingredients inside are fully released, and the nutrients can be fully absorbed by the human body. The low-temperature airflow generator cools the gas through a cooling device to generate a low-temperature airflow, which is transported to the wall breaking device through a conveying pipeline to break the wall and separate the substances. In the prior art, the low-temperature wall breaking device has the following problems: before the material enters the low-temperature wall breaking device, the material needs to be pre-treated at low temperature and dried, involving multiple equipment such as cooling equipment and drying equipment, and also adds the material transportation link between the equipment. During the material transportation process, the heat is easily conducted, resulting in changes in the material temperature, and the low-temperature and dry material is prone to moisture and oxidation problems during the transportation process. Utility Model Content

[0004] In view of this, the utility model proposes a low-temperature wall breaking device for food, which is integrated into the freeze-drying equipment to effectively improve the drying and wall breaking effects of the material and avoid the problems of moisture resorption and temperature increase of the material during transportation.

[0005] The technical solution of the utility model is achieved in this way:

[0006] A low-temperature food wall-breaking device comprises a shell and a controller, wherein a first feed hopper and a vacuum pump are arranged on the top of the shell, the vacuum pump is communicated with the inner cavity of the shell through a vacuum tube, a feed valve is arranged at the bottom of the first feed hopper, a plurality of conveyor belts are arranged in the shell, the conveyor belts are located below the feed valve, a second feed hopper is arranged below the conveyor belt, the second feed hopper is communicated with a mixing drum, a first rotating shaft is arranged in the mixing drum, one end of the first rotating shaft is rotatably connected to the mixing drum, the other end passes through the mixing drum and the shell and is driven by a first motor, the first motor is arranged on the side of the shell, a spiral blade is arranged on the first rotating shaft, the mixing drum is communicated with a transmission pump through a first pipeline, the driving shaft of the transmission pump passes through the shell and is driven by a second motor, the transmission pump is communicated with a crushing machine through a second pipeline A wall box, the wall breaking box is arranged in a shell, a third rotating shaft is arranged in the wall breaking box, one end of the third rotating shaft is rotatably connected to the wall breaking box, and the other end passes through the wall breaking box and the shell and is driven by a third motor, the third motor is arranged on the top of the shell, a grinding disc is rotatably sleeved on the third rotating shaft, an annular groove is arranged at the top edge of the grinding disc, a plurality of drop holes are arranged in the annular groove, a plurality of rolling cylinders are rotatably arranged on the top surface of the grinding disc, the rolling cylinders are rotatably connected with a coupling, one end of the coupling is fixedly connected to the third rotating shaft, a refrigerator, a condenser, a temperature sensor and a vacuum sensor are arranged on the inner wall of the shell, the controller is arranged on the side of the shell and is electrically connected to the feed valve, the conveyor belt, the first motor, the second motor, the third motor, the refrigerator, the condenser, the temperature sensor, the vacuum sensor and the vacuum pump.

[0007] Preferably, it also includes baffles, which are obliquely arranged on both sides of the conveyor belt.

[0008] Preferably, the grinding disc is provided with a conical inclined surface, the inclined surface is provided with a spiral groove, and a screen is provided in the blanking hole.

[0009] Preferably, a spiral groove is provided on the side surface of the rolling cylinder.

[0010] Preferably, a plurality of rotating blades are provided in the bottom of the wall-breaking box, and one end of the plurality of rotating blades is connected to the third rotating shaft.

[0011] Preferably, a discharge pipe is provided on the bottom side wall of the wall-breaking box, the opening direction of the discharge pipe is tangent to the inner contour of the wall-breaking box, the discharge pipe passes through the shell and extends out of the shell, a discharge valve is provided at the end of the discharge pipe, and the discharge valve is electrically connected to the controller.

[0012] Preferably, it also includes supporting legs, and the supporting legs are arranged at the bottom of the shell.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] ① The wall breaking mechanism is set inside the freeze-drying equipment, which is conducive to maintaining the temperature and dryness of the material, reducing the material transmission link, avoiding moisture and oxidation of the material during the transmission process, improving the effect of low-temperature wall breaking, and the whole device is compact in structure, saving floor space;

[0015] ② The related motor of the wall-breaking mechanism is arranged outside the freeze-drying equipment, and the wall-breaking mechanism is driven by the rotating shaft to prevent the heat generated by the motor from being dissipated into the freeze-drying equipment, which is beneficial to the refrigeration effect of the freeze-drying equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only preferred embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of a low-temperature food wall-breaking device of the utility model;

[0018] Figure 2 It is a schematic cross-sectional structure diagram of a low-temperature food wall-breaking device of the utility model;

[0019] Figure 3 for Figure 2 Cross-section at AA in the middle;

[0020] Figure 4 for Figure 2 The enlarged view of point B in the middle;

[0021] Figure 5 This is a schematic diagram of the grinding disc structure of a low-temperature food wall-breaking device of the utility model;

[0022] Figure numerals: 1. Shell; 2. First feed hopper; 3. Support leg; 4. First motor; 5. Second motor; 6. Refrigerator; 7. Third motor; 8. Vacuum pump; 9. Vacuum tube; 10. Discharge pipe; 11. Feed valve; 12. Conveyor belt; 13. Baffle; 14. Second feed hopper; 15. Mixing drum; 16. First rotating shaft; 17. Spiral blade; 18. First pipeline; 19. Transmission pump; 20. Second rotating shaft; 21. Second pipeline; 22. Third rotating shaft; 23. Rolling column; 24. Grinding disc; 25. Wall breaking box; 26. Vacuum sensor; 27. Rotating blade; 28. Condenser; 29. ​​Temperature sensor; 30. Controller; 31. Discharge valve; 32. Dropping hole; 33. Ring groove; 34. Screen; 35. Spiral groove; 36. Coupling. DETAILED DESCRIPTION

[0023] In order to better understand the technical content of the present invention, a specific embodiment is provided below, and the present invention is further described in conjunction with the accompanying drawings.

[0024] See also Figures 1 to 5 The utility model provides a low-temperature food wall-breaking device, including a shell 1 and a controller 30. The shell 1 is cylindrical and is the shell of a freeze-drying mechanism. A first feed hopper 2 and a vacuum pump 8 are arranged on the top of the shell 1. The vacuum pump 8 is connected to the inner cavity of the shell 1 through a vacuum tube 9. The vacuum pump 8 is used to remove the air inside the shell 1. A feed valve 11 is arranged at the bottom of the first feed hopper 2. The feed valve 11 adopts an electromagnetic valve with good sealing performance. A plurality of conveyor belts 12 are arranged in the shell 1. The conveyor belt 12 is located below the feed valve 11. A second conveyor belt 12 is arranged below the conveyor belt 12. The feed hopper 14 is connected to a mixing drum 15, and a first rotating shaft 7 is arranged in the mixing drum 15. One end of the first rotating shaft 7 is rotatably connected to the mixing drum 15, and the other end passes through the mixing drum 15 and the housing 1 and is driven by a first motor 4. The first motor 4 is arranged on the side of the housing 1. The mixing drum 15 is connected to a transmission pump 19 through a first pipeline 18. The drive shaft of the transmission pump 19 passes through the housing 1 and is driven by a second motor 5. The second motor 5 is arranged on the side of the housing 1. The first rotating shaft 7 is provided with a spiral blade 17. The transmission pump 19 is connected to the mixing drum 15 through a second pipeline 18. 21 is connected to a wall-breaking box 25, the wall-breaking box 25 is arranged in the shell 1, a third rotating shaft 22 is arranged in the wall-breaking box 25, one end of the third rotating shaft 22 is rotatably connected to the wall-breaking box 25, and the other end passes through the wall-breaking box 25 and the shell 1 and is driven by a third motor 7, the third motor 7 is arranged on the top of the shell 1, a grinding disc 24 is rotatably sleeved on the third rotating shaft 22, the grinding disc 24 and the inner wall of the wall-breaking box 25 are fixedly connected, an annular groove 33 is arranged at the top edge of the grinding disc 24, a plurality of blanking holes 32 are arranged in the annular groove 33, and a plurality of rolling cylinders 2 are rotatably arranged on the top surface of the grinding disc 24 3. The rolling cylinder 23 is rotatably connected with a coupling 36, one end of which is fixedly connected to the third rotating shaft 22. The inner wall of the shell 1 is provided with a refrigerator 6, a condenser 28, a temperature sensor 29 and a vacuum sensor 26. The controller 30 is arranged on the side of the shell 1 and is electrically connected with the feed valve 11, the conveyor belt 12, the first motor 4, the second motor 5, the third motor 7, the refrigerator 6, the condenser 28, the temperature sensor 29, the vacuum sensor 26 and the vacuum pump 8. The controller 30 adopts a model of STM32-L0, which is a 32-bit low-power microprocessor.

[0025] When the material is subjected to low-temperature wall breaking, the material is first placed in the first feed hopper 2, and the controller 30 controls the simultaneous start of the feed valve 11 and the conveyor belt 12. After the material passes through the feed valve 11 under the action of gravity, it falls into the left side of the top of the conveyor belt 12 in the shell 1, and the material moves to the right side with the conveyor belt 12 and then falls to the right side of the lower conveyor belt 12. The top of the lower conveyor belt 12 moves to the left, and the material moves to the left side with the lower conveyor belt 12. A multi-layer conveyor belt 12 is arranged in the shell 1 to increase the material holding capacity, which is beneficial to the dispersion of the material and improves the freeze-drying effect of the material. When all the material enters the shell 1, the conveyor belt 12 is stopped and the feed valve 11 is closed. The controller 30 detects the temperature in the shell 1 through the temperature sensor 29, and controls the refrigerator 6 to perform refrigeration; the vacuum pump 8 is started, and the vacuum pump 8 extracts the air inside the shell 1 through the vacuum pipe 9. When the vacuum sensor 26 detects that the internal pressure of the shell 1 reaches a predetermined value, the vacuum pump 8 is stopped. Under the action of vacuum and low temperature, the moisture contained in the material on the conveyor belt 12 is continuously volatilized, and the volatilized moisture is directly sublimated and captured by the condenser 28. When the material is completely frozen and dried, the conveyor belt 12, the first motor 4, the second motor 5 and the third motor 7 are started at the same time. The material moves with the conveyor belt 12 to the left side of the lowest conveyor belt 12 and then falls into the second feed hopper 14 and then enters the mixing drum 15. The rotation of the first motor 4 drives the first rotating shaft 7 to rotate, and the rotation of the first rotating shaft 7 drives the spiral blade 17 to rotate. After being stirred and squeezed by the spiral blade 17, the material is squeezed and crushed and transported to the first pipeline 18 by the spiral blade 17. The rotation of the second motor 5 drives the second rotating shaft 20 to rotate, and the rotation of the second rotating shaft 20 drives The conveying pump is driven to work. After the action of the conveying pump, the crushed material enters the wall breaking box 25 through the second pipe 21 and falls onto the grinding disc 24. At this time, the third motor 7 rotates to drive the third rotating shaft 22 to rotate, and the third rotating shaft 22 rotates to drive the coupling 36 to rotate, so that the rolling column 23 rolls on the top of the grinding disc 24, and the material is continuously rolled, thereby realizing the low-temperature wall breaking of the material. The material that has been rolled and broken will fall from the drop hole 32 in the annular groove 33 of the grinding disc 24 into the bottom of the wall breaking box 25, completing the low-temperature wall breaking of the material. Because the entire processing process of the material is completed in the shell 1, it is beneficial to keep the material in a stable low-temperature state, and the shell 1 is kept in a vacuum state, avoiding the problems of material moisture resorption and oxidation.

[0026] Preferably, it further comprises a baffle 13 , wherein the baffle 13 is obliquely arranged on both sides of the conveyor belt 12 .

[0027] The baffle 13 is located on both sides of the conveyor belt 12. When the material falls from the first feed hopper 2 to the top surface of one end of the conveyor belt 12, the material moves with the conveyor belt 12. When the material moves to the other end of the conveyor belt 12, the material will fall down to the top surface of the conveyor belt 12 below under the action of gravity. The conveyor belt 12 has a certain movement speed. The material is transported by the conveyor belt 12. The material has a certain speed in the movement direction of the conveyor belt 12. When the material leaves the conveyor belt 12 and falls into the conveyor belt 12 below, it will make a parabolic motion. When the material hits the baffle 13, it will fall along the inclined surface of the baffle 13 into the conveyor belt 12 below, which can prevent the material from falling out of the conveyor belt 12.

[0028] Preferably, the grinding disc 24 is provided with a conical inclined surface, a spiral groove 35 is provided on the inclined surface, and a screen 34 is provided in the blanking hole 32 .

[0029] When the material is discharged from the second pipe 21 and falls to the middle of the top of the grinding disc 24, the conical inclined surface is conducive to the material being pushed into the annular groove 33 along the inclined surface under the action of gravity. The spiral groove 35 provided on the inclined surface not only plays the role of crushing and breaking the wall, but also can produce the effect of shearing the material, thereby improving the wall breaking efficiency. After crushing and breaking the wall, the material will fall from the drop hole 32 to the bottom of the wall breaking box 25 after being screened by the screen 34.

[0030] Preferably, a spiral groove 35 is provided on the side surface of the rolling cylinder 23 .

[0031] The spiral grooves 35 provided on the side of the rolling cylinder 23 are used to roll and shear the materials together with the spiral grooves 35 of the grinding disc 24 to improve the wall breaking effect.

[0032] Preferably, a plurality of rotating blades 27 are provided in the bottom of the wall-breaking box 25 , and one end of the plurality of rotating blades 27 is connected to the third rotating shaft 22 .

[0033] The function of the multiple rotating blades 27 is to discharge the processed materials from the wall breaking box 25. When the materials need to be discharged, the third motor 7 is started. The rotation of the third motor 7 drives the third rotating shaft 22 to rotate. The rotation of the third rotating shaft 22 drives the rotating blades 27 to rotate. Under the action of the rotating blades 27, the materials are subjected to the centrifugal force and the action of the rotating blades 27, which is conducive to the discharge of the materials.

[0034] Preferably, a discharge pipe 10 is provided on the bottom side wall of the wall-breaking box 25, and the material in the wall-breaking box 25 falls to the bottom after being crushed and broken. The opening direction of the discharge pipe 10 is tangent to the inner contour of the wall-breaking box 25. The discharge pipe 10 passes through the shell 1 and extends out of the shell 1. A discharge valve is provided at the end of the discharge pipe 10, and the discharge valve is electrically connected to the controller 30.

[0035] The main function of the discharge pipe 10 is to discharge the material after the crushing and wall breaking process from the wall breaking box 25. When the material needs to be discharged, the controller 30 controls the opening of the discharge valve through the electrical wire, and the material will be discharged from the discharge valve to the outside of the shell 1 through the discharge pipe 10.

[0036] Preferably, it further comprises a supporting leg 3 , wherein the supporting leg 3 is arranged at the bottom of the shell 1 .

[0037] The supporting legs 3 at the bottom of the shell 1 start to support the entire device. The supporting legs 3 provide stable and firm support, which is conducive to installing the low-temperature wall-breaking device on the ground.

[0038] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A low-temperature food wall breaking device, It is characterized in that It comprises a shell and a controller, a first feed hopper and a vacuum pump are arranged on the top of the shell, the vacuum pump is communicated with the inner cavity of the shell through a vacuum tube, a feed valve is arranged at the bottom of the first feed hopper, a plurality of conveyor belts are arranged in the shell, the conveyor belt is located below the feed valve, a second feed hopper is arranged below the conveyor belt, the second feed hopper is communicated with a mixing drum, a first rotating shaft is arranged in the mixing drum, one end of the first rotating shaft is rotatably connected with the mixing drum, the other end passes through the mixing drum and the shell and is driven by a first motor, the first motor is arranged on the side of the shell, a spiral blade is arranged on the first rotating shaft, the mixing drum is communicated with a transmission pump through a first pipeline, the driving shaft of the transmission pump passes through the shell and is driven by a second motor, the transmission pump is communicated with a wall breaking box through a second pipeline, and the wall breaking box The wall box is arranged in the shell, and a third rotating shaft is arranged in the wall breaking box, one end of the third rotating shaft is rotatably connected to the wall breaking box, and the other end passes through the wall breaking box and the shell and is driven by a third motor, and the third motor is arranged on the top of the shell, and a grinding disc is rotatably sleeved on the third rotating shaft, and an annular groove is arranged at the top edge of the grinding disc, and a plurality of drop holes are arranged in the annular groove, and a plurality of rolling cylinders are rotatably arranged on the top surface of the grinding disc, and the rolling cylinders are rotatably connected with a coupling, and one end of the coupling is fixedly connected to the third rotating shaft, and a refrigerator, a condenser, a temperature sensor and a vacuum sensor are arranged on the inner wall of the shell, and the controller is arranged on the side of the shell and is electrically connected to the feed valve, the conveyor belt, the first motor, the second motor, the third motor, the refrigerator, the condenser, the temperature sensor, the vacuum sensor and the vacuum pump.

2. A low-temperature food wall-breaking device according to claim 1, It is characterized in that It also includes baffles, which are obliquely arranged on both sides of the conveyor belt.

3. A low-temperature food wall-breaking device according to claim 1, It is characterized in that The grinding disc is provided with a conical inclined surface, a spiral groove is provided on the inclined surface, and a screen is provided in the drop hole.

4. A low-temperature food wall-breaking device according to claim 1, It is characterized in that A spiral groove is arranged on the side surface of the rolling cylinder.

5. A low-temperature food wall-breaking device according to claim 1, It is characterized in that A plurality of rotating blades are arranged in the bottom of the wall-breaking box, and one end of the plurality of rotating blades is connected to the third rotating shaft.

6. A low-temperature food wall-breaking device according to claim 1, It is characterized in that A discharge pipe is provided on the bottom side wall of the wall-breaking box, the opening direction of the discharge pipe is tangent to the inner contour of the wall-breaking box, the discharge pipe passes through the shell and extends out of the shell, a discharge valve is provided at the end of the discharge pipe, and the discharge valve is electrically connected to the controller.

7. A low-temperature food wall-breaking device according to claim 1, It is characterized in that It also includes supporting legs, which are arranged at the bottom of the shell.

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