A bean soaking and grinding integrated system

Abstract

The application provides a legume soaking and grinding integrated system, which comprises an outer cylinder, an inner cylinder, a connecting cylinder fixedly connected to the inner cylinder, a feeding hopper fixedly connected to the connecting cylinder, a heating assembly arranged in the outer cylinder, an installation shaft vertically arranged in the inner cylinder, a first driver connected to the upper portion of the connecting cylinder, a rotating disc fixedly connected to the installation shaft and located in the inner cylinder, an annular fixed disc protruding inwardly from the inner wall of the inner cylinder and located in the annular structure of the fixed disc, a grinding gap arranged between the rotating disc and the fixed disc, a plurality of first through holes arranged at the bottom of the inner cylinder, a plurality of second through holes arranged at the upper end of the inner cylinder and located above the fixed disc, and a circulating assembly arranged in the outer cylinder and configured to circulate liquid between the first through holes and the second through holes. The application solves the problems of the prior art, i.e., too many soaking and grinding processing steps and possible mixing of impurities in the transfer process.

Description

Technical Field

[0001] This invention relates to the field of equipment technology for deep processing of beans, and in particular to an integrated system for soaking and grinding beans. Background Technology

[0002] Legumes are rich in nutrients and can be processed into deep-processed soy products such as tofu, soy milk, and soy cream. Deep processing of legumes generally involves grinding the beans before further processing. Before grinding, the beans are usually soaked to ensure they fully absorb water. Soaking and grinding are typically done separately, requiring at least two separate pieces of equipment. The soaking equipment (such as a soaking drum, which can be equipped with heating devices to maintain a specific water temperature and can also include a stirring mechanism to improve efficiency) is used to transfer the beans to the grinding equipment (such as a grinder, which typically uses high-speed rotating blades to shear and grind the soaked beans into a paste before transferring them). This process involves relatively many steps, and during transfer, the beans are generally exposed to the elements, potentially introducing impurities. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides an integrated system for soaking and grinding beans, which solves the problems of multiple steps in the soaking and grinding process and the potential for impurities to be introduced during the transfer process.

[0004] According to an embodiment of the present invention, a bean soaking and grinding integrated system includes an outer cylinder and an inner cylinder fixedly disposed within the outer cylinder. A discharge pipe is provided at the bottom of the outer cylinder, and a connecting cylinder extending upwards to the outer cylinder is fixedly connected to the inner cylinder. A feed hopper is also fixedly connected to the connecting cylinder. A heating component is also disposed within the outer cylinder. A mounting shaft penetrating the connecting cylinder is vertically disposed within the inner cylinder. A first driver is connected above the connecting cylinder to drive the mounting shaft to rotate. A rotating disk located within the inner cylinder is fixedly connected to the mounting shaft. An annular fixed disk protrudes inward from the inner wall of the inner cylinder. The rotating disk is located within the annular structure of the fixed disk. An annular grinding gap, larger at the top and smaller at the bottom, is provided between the rotating disk and the fixed disk. A plurality of first through holes are provided at the bottom of the inner cylinder, and a plurality of second through holes located above the fixed disk are provided at the top. A circulation component is also disposed within the outer cylinder to allow liquid to circulate between the first and second through holes. Beans enter the connecting cylinder from the feed hopper and then fall into the inner cylinder. Water is then added from the feed hopper until it covers the beans. The water also flows into the outer cylinder, where it is heated to hot water by a heating element (heating can be stopped after reaching a certain temperature, such as 50-60℃). Simultaneously, a circulation component can be activated to circulate the water between the inner and outer cylinders, allowing soaking to occur. After soaking, the soaking water is drained and new grinding water is added before grinding (or the soaking water can be added as needed). During grinding, the circulation component operates continuously. When the first drive is activated, the rotating disc rotates. The beans move downwards through the grinding gap and are gradually ground. They then pass through the lower end of the grinding gap and through the first through hole into the outer cylinder. They then circulate upwards through the second through hole into the inner cylinder. After multiple cycles, a slurry is finally formed. Finally, the first drive and the circulation assembly are stopped, and the slurry is discharged through the discharge pipe. The entire soaking and grinding process is carried out in one device, and no impurities are mixed in during the process. Therefore, it is more convenient and efficient, solving the problem that there are many steps in the soaking and grinding of beans in the existing technology and that impurities may be mixed in during the transfer process.

[0005] Furthermore, an inclined guide plate is fixedly installed inside the connecting cylinder. The inclined guide plate has a higher end that is fixedly connected to the connecting cylinder and a lower end that is separate from the connecting cylinder. The feed hopper is located above the lower end of the inclined guide plate. An air guide pipe that is fixed to the higher end of the inclined guide plate and communicates with the space below the inclined guide plate is also fixed on the connecting cylinder.

[0006] Furthermore, the lower end of the mounting shaft passes through the rotating disk and is rotatably connected to the bottom of the inner cylinder. Several third through holes are provided on the upper end of the rotating disk, located above the grinding gap. A first spiral extending from inside the rotating disk to below the rotating disk is also fixedly connected to the mounting shaft.

[0007] Furthermore, a second spiral located above the rotating disk is also fixedly connected to the mounting shaft.

[0008] Furthermore, the circulation assembly includes a pair of third spirals disposed inside the outer cylinder and located on both sides of the inner cylinder. The third spirals are arranged vertically, and two second drivers that drive the two third spirals to rotate are also disposed outside the outer cylinder.

[0009] Furthermore, a pair of first connecting plates are fixedly connected between the lower outer wall of the inner cylinder and the inner wall of the outer cylinder. The lower ends of the two third spirals are respectively rotatably connected to the two first connecting plates, and the first connecting plates are also provided with fourth through holes that surround the ends of the corresponding third spirals.

[0010] Furthermore, the circulation assembly also includes a fourth spiral that is horizontally placed inside the outer cylinder and located below the inner cylinder, and a third driver that drives the fourth spiral to rotate is also provided outside the outer cylinder.

[0011] Furthermore, the fourth helix comprises two helical segments rotating in opposite directions.

[0012] Furthermore, the heating assembly includes an electric heating tube located below the fourth spiral.

[0013] Furthermore, a guide hopper is fixedly installed inside the inner cylinder, which is connected to the upper end of the annular structure of the fixed disk. All the second through holes are located above the guide hopper, and the upper end of the rotating disk extends into the guide hopper.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] Soaking and grinding of beans are carried out in one device, without the introduction of impurities. During soaking, a circulation component set in the outer cylinder allows the soaking water to circulate between the inner and outer cylinders, which can improve soaking efficiency. At the same time, the circulation component can also improve efficiency during grinding. Ultimately, the soaking and grinding of beans are integrated and highly efficient, solving the problem of multiple steps in the soaking and grinding process of beans in the existing technology and the possibility of impurities being introduced during the transfer process. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention;

[0017] Figure 2 This is a partial structural schematic diagram of an embodiment of the present invention;

[0018] Figure 3 for Figure 1 Enlarged schematic diagram of a local structure at point A;

[0019] In the above attached figures:

[0020] Outer cylinder 1, inner cylinder 2, mounting bracket 3, fixing plate 4, discharge pipe 5, valve 6, connecting cylinder 7, feed hopper 8, water inlet pipe 9, ring plate 10, electric heating tube 11, mounting shaft 12, first driver 13, rotating disk 14, fixing disk 15, grinding gap 16, inclined guide plate 17, air guide pipe 18, perforation 19, air collection hood 20, first spiral 21, second spiral 22, feed hopper 23, third spiral 24, fourth spiral 25, second driver 26, third driver 27, spiral segment 28, first connecting plate 29, second connecting plate 30. Detailed Implementation

[0021] The technical solutions of the present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0023] In an exemplary implementation, such as Figure 1-3As shown, this embodiment provides an integrated system for soaking and grinding beans, which includes an outer cylinder 1 and an inner cylinder 2 fixedly disposed inside the outer cylinder 1. A mounting frame 3 is also fixedly disposed outside the outer cylinder 1. The upper and lower ends of the outer cylinder 1 are respectively fixed to the mounting frame 3 via fixing plates 4. A discharge pipe 5 is disposed at the bottom of the outer cylinder 1 (a valve 6 is disposed on the discharge pipe 5 to control its opening and closing). A connecting cylinder 7 is fixedly connected to the inner cylinder 2, extending upwards to the outside of the outer cylinder 1. The connecting cylinder 7 also extends fixedly above the mounting frame 3. A feed hopper 8 is fixedly connected to the connecting cylinder 7 to introduce beans and water. A separate water inlet pipe 9 can also be provided to introduce water (soaking water and grinding water). The feed hopper 8 is used to introduce beans. The feed hopper 8 and water inlet pipe 9 are both located above the mounting frame 3 for easy operation and to make the entire system more stable. Furthermore, a connecting ring plate 10 can be fixed between the connecting cylinder 7 and the mounting frame 3. The ring plate 10 is located above the mounting frame 3, which allows the connecting cylinder 7 to be more stably connected to the mounting frame 3, resulting in better overall system stability. A heating component is also installed inside the outer cylinder 1. The heating component can be an electric heating tube 11, located at the bottom of the outer cylinder 1, for heating the soaking water, such as to 50-60℃. Heating can be stopped after reaching the specified temperature, and can be restarted if the temperature drops below the range. The inner cylinder 2 also has vertically installed... A mounting shaft 12 passes through the connecting cylinder 7. A first driver 13, which drives the mounting shaft 12 to rotate, is connected above the connecting cylinder 7. A rotating disk 14 located inside the inner cylinder 2 is fixedly connected to the mounting shaft 12. An annular fixed disk 15 protrudes inward from the inner wall of the inner cylinder 2. The rotating disk 14 has an upwardly convex umbrella-shaped structure and is located within the annular structure of the fixed disk 15. An annular grinding gap 16, which is larger at the top and smaller at the bottom, is also provided between the rotating disk 14 and the fixed disk 15. Beans are fed into the connecting cylinder 7 through the feed hopper 8 and then fall into the inner cylinder 2. They will not pass through the grinding gap 16 at the position of the fixed disk 15 (the upper end of the grinding gap 16 is larger, allowing some beans to enter, but the lower end...). The smaller the size, the more the beans are intercepted above the grinding gap 16, and the soaking is carried out above the grinding gap 16. The bottom of the inner cylinder 2 is also provided with several first through holes, and the upper end is also provided with several second through holes located above the fixed plate 15. The outer cylinder 1 is also provided with a circulation component that allows the liquid to circulate between the first through holes and the second through holes, so that the liquid circulates between the inner cylinder 2 and the outer cylinder 1. The added soaking water can enter the outer cylinder 1 through the grinding gap 16 and the first through holes, and the water added during soaking can cover the second through holes (and also cover the beans). In this way, the circulation component is activated during soaking, so that the soaking water circulates between the inner cylinder 2 and the outer cylinder 1, making the soaking more efficient.After soaking, the soaking water is drained through the discharge pipe 5, and grinding water is added again for grinding (or the soaking water can be left undischarged, and grinding water can be added as needed). During grinding, the circulation component is continuously running, and the first driver 13 is activated to rotate the rotating disk 14. The beans move downwards through the grinding gap 16 and are gradually ground. They then pass through the lower end of the grinding gap 16, through the first through hole into the outer cylinder 1, and then circulate upwards through the second through hole into the inner cylinder 2. After multiple cycles, a slurry is finally formed. Finally, the first driver 13 and the circulation component are stopped, and the slurry is discharged through the discharge pipe 5. The entire soaking and grinding process is carried out in one device, and no impurities are mixed in during the process. Therefore, it is more convenient and efficient, solving the problem of multiple steps in the soaking and grinding of beans in the existing technology and the possibility of impurities being mixed in during the transfer process.

[0024] like Figure 1-3 As shown, an inclined guide plate 17 is also fixedly installed inside the connecting cylinder 7. The mounting shaft 12 rotates through the inclined guide plate 17. The inclined guide plate 17 has a higher end fixedly connected to the connecting cylinder 7 and a lower end separate from the connecting cylinder 7. The feed hopper 8 is located above the lower end of the inclined guide plate 17. A venting pipe 18 is also fixed on the connecting cylinder 7, which is fixed to the higher end of the inclined guide plate 17 and communicates with the space below the inclined guide plate 17. During the soaking process, hot steam may rise upwards. The inclined guide plate 17 can guide the hot steam so that most of the hot steam moves obliquely upwards after encountering it and then enters the venting pipe 18. More specifically, multiple inclined guide plates 17 can be provided. The perforations 19 and the gas collection hood 20 that covers all the perforations 19 make it easier for hot steam to enter the gas collection hood 20. The air guide pipe 18 is connected to the gas collection hood 20 to guide the hot steam away. A blower can also be connected to the end of the air guide pipe 18 outside the connecting cylinder 7 to provide power for more efficient hot steam removal. Furthermore, the water inlet pipe 9 can be located below or above the inclined guide plate 17. The connection between the feed hopper 8 and the connecting cylinder 7 is located above the inclined guide plate 17. After the beans pass through the feed hopper 8, they enter the connecting cylinder 7 and finally fall down from the gap between the lower end of the inclined guide plate 17 and the connecting cylinder 7.

[0025] like Figure 1 , 2As shown, the lower end of the mounting shaft 12 passes through the rotating disk 14 and is rotatably connected to the bottom of the inner cylinder 2. Several third through holes are provided on the upper surface of the rotating disk 14, located above the grinding gap 16. A first spiral 21 extending from inside the rotating disk 14 to below it is also fixedly connected to the mounting shaft 12. The third through holes at the upper end of the rotating disk 14 allow water or finely ground slurry to pass through, but not beans (the third through holes are dense and only used for water and finely ground slurry; beans not ground into slurry cannot pass through). The first spiral 21 rotates synchronously with the rotating disk 14 during operation, generating a downward pulling force that allows the liquid to pass through the third through holes and enter the rotating disk 14. Simultaneously, the first spiral 21 also extends to the rotating disk... Below 14, the liquid can pass through the grinding gap 16 more efficiently, thus making the grinding more efficient. In particular, the first spiral 21 can also be a structure that is smaller at the top and larger at the bottom, so that the pulling force generated at the lower end is greater, and the liquid passes through the grinding gap 16 more smoothly. Furthermore, a second spiral 22 located above the rotating disk 14 is also fixedly connected to the mounting shaft 12. When the mounting shaft 12 rotates, the second spiral 22 can push downward, thereby moving the liquid and beans downward, thus making the grinding more efficient. The second spiral 22 can also extend into the connecting cylinder 7. When cleaning is performed after grinding, reversing the mounting shaft 12 can make the cleaning water rise upward, which can better clean the connecting cylinder 7 as well.

[0026] like Figure 1 , 2 As shown, in a further embodiment, a guide hopper 23 connected to the upper end of the annular structure of the fixed disk 15 is fixedly installed inside the inner cylinder 2. All the second through holes are located above the guide hopper 23. The upper end of the rotating disk 14 extends into the guide hopper 23. The guide hopper 23 can be integrated with the fixed disk 15, thus forming a funnel structure inside the inner cylinder 2, which is larger at the top and smaller at the bottom. This allows the beans to move downwards more efficiently during the grinding process. The upper end of the rotating disk 14 extends into the guide hopper 23. When rotating, the beans contact the wall of the rotating disk 14 downwards and then continue to enter the grinding gap 16.

[0027] like Figure 1 , 2As shown, the circulation assembly includes a pair of third spirals 24 located inside the outer cylinder 1 and on both sides of the inner cylinder 2, and a fourth spiral 25 located horizontally inside the outer cylinder 1 and below the inner cylinder 2. The third spirals 24 are vertically arranged. Outside the outer cylinder 1, there are two second drivers 26 that drive the two third spirals 24 to rotate, and a third driver 27 that drives the fourth spiral 25 to rotate. The electric heating tube 11 can also be located below the fourth spiral 25. The first driver 13, the second driver 26, and the third driver 27 can all be drive motors. The third spirals 24 and the fourth spiral 25 run on both sides and below the inner cylinder 2, respectively. The fourth spiral 25 also includes two spiral segments 28 with opposite rotation directions. When the fourth spiral 25 is running, it can pull the liquid to both ends. Combined with the third spirals 24 on both sides, the liquid rises and then returns to the inner cylinder 2 through the second through hole, and then falls down through the grinding gap 16, the third through hole, and the first through hole to achieve circulation. Furthermore, a pair of first connecting plates 29 are fixedly connected between the lower outer wall of the inner cylinder 2 and the inner wall of the outer cylinder 1. The lower ends of the two third spirals 24 are rotatably connected to the two first connecting plates 29 respectively. In this way, the first connecting plates 29 provide rotational support for the lower ends of the third spirals 24, making their operation more stable. The first connecting plates 29 are also provided with fourth through holes that surround the ends of the corresponding third spirals 24. The fourth through holes allow liquid to pass through, so that circulation can proceed smoothly. Furthermore, the end of the fourth spiral 25 can also be rotatably connected to the inner wall of the outer cylinder 1, which can also make the operation more stable. At the same time, the first connecting plates 29 also make the connection between the lower end of the inner cylinder 2 and the outer cylinder 1 more stable. A pair of second connecting plates 30 can be provided between the middle section of the inner cylinder 2 and the outer cylinder 1. The second connecting plates 30 are provided with fifth through holes for the corresponding third spiral 24 to pass through as a whole, which can make the connection between the inner cylinder 2 and the outer cylinder 1 more stable.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A system for soaking and grinding beans in one step, characterized in that, The device includes an outer cylinder and an inner cylinder fixedly installed inside the outer cylinder. A discharge pipe is located at the bottom of the outer cylinder. A connecting cylinder extending upwards to the outer cylinder is fixedly connected to the inner cylinder, and a feed hopper is fixedly connected to the connecting cylinder. A heating assembly is also installed inside the outer cylinder. A vertically extending mounting shaft is installed inside the inner cylinder, penetrating the connecting cylinder. A first driver is connected above the connecting cylinder to drive the mounting shaft to rotate. A rotating disk located inside the inner cylinder is fixedly connected to the mounting shaft. An annular fixed disk protrudes inwards from the inner wall of the inner cylinder, and the rotating disk is located within the annular structure of the fixed disk. An annular grinding gap, wider at the top and narrower at the bottom, is provided between the rotating disk and the fixed disk. Several first through holes are located at the bottom of the inner cylinder, and several second through holes are located above the fixed disk at the top. A circulation assembly is installed inside the outer cylinder to allow liquid to circulate between the first and second through holes. The lower end of the mounting shaft passes through the rotating disk and connects with the bottom of the inner cylinder. The rotating disk has several third through holes on its upper surface above the grinding gap. A first spiral extending from inside the rotating disk to below it is fixedly connected to the mounting shaft. The circulation assembly includes a pair of third spirals located inside the outer cylinder and on both sides of the inner cylinder. The third spirals are vertically arranged, and two second actuators are located outside the outer cylinder to drive the rotation of the two third spirals. The circulation assembly also includes a fourth spiral horizontally placed inside the outer cylinder and located below the inner cylinder. A third actuator is located outside the outer cylinder to drive the rotation of the fourth spiral. The fourth spiral includes two spiral segments with opposite rotation directions. The heating assembly is used to heat the soaking water. The added soaking water enters the outer cylinder through the grinding gap and the first through hole. During soaking, the added water covers the second through hole and also covers the beans. During soaking, the circulation assembly is activated to circulate the soaking water between the inner and outer cylinders. During grinding, the circulation assembly is in continuous operation.

2. The integrated system for soaking and grinding beans as described in claim 1, characterized in that, An inclined guide plate is also fixedly installed inside the connecting cylinder. The inclined guide plate has a higher end that is fixedly connected to the connecting cylinder and a lower end that is separate from the connecting cylinder. The feed hopper is located above the lower end of the inclined guide plate. An air guide pipe that is fixed to the higher end of the inclined guide plate and communicates with the space below the inclined guide plate is also fixed on the connecting cylinder.

3. The integrated system for soaking and grinding beans as described in claim 1, characterized in that, A second spiral located above the rotating disk is also fixedly connected to the mounting shaft.

4. The integrated system for soaking and grinding beans as described in claim 1, characterized in that, A pair of first connecting plates are fixedly connected between the lower outer wall of the inner cylinder and the inner wall of the outer cylinder. The lower ends of the two third spirals are rotatably connected to the two first connecting plates respectively, and the first connecting plates are also provided with fourth through holes that surround the ends of the corresponding third spirals respectively.

5. The integrated system for soaking and grinding beans as described in claim 1, characterized in that, The heating assembly includes an electric heating element located below the fourth spiral.

6. The integrated system for soaking and grinding beans as described in any one of claims 1-5, characterized in that, The inner cylinder is also fixedly equipped with a guide hopper that is connected to the upper end of the annular structure of the fixed disk. All the second through holes are located above the guide hopper, and the upper end of the rotating disk extends into the guide hopper.

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