Soybean milk filtering device

Abstract

The invention provides a soybean milk filtering device which comprises a tank body, a tank cover is detachably arranged at the top of the tank body, an air filtering assembly communicating the inside and the outside of the tank body is arranged on the tank cover, and external air enters the tank body after being filtered by the air filtering assembly; the inner wall of the tank body is also fixedly connected with a filter hopper and a separation hopper which are distributed up and down, the filter hopper is provided with a plurality of first filter holes, and the bottom of the separation hopper is provided with an opening; a liquid inlet pipe communicated with the inside and the outside of the tank body is fixedly connected to the tank body and extends into the filter hopper; the tank body is also fixedly connected with an air exhaust assembly communicated with the interior of the tank body outside the separation hopper; the tank body is also fixedly connected with a first liquid discharge pipe communicated with the bottom of the tank body; wherein the bottom of the filter hopper is further connected with a material guide pipe, and the material guide pipe fixedly extends out of the tank body. The filtering efficiency can be improved, so that the problem of low filtering efficiency of a filtering device in the prior art can be solved.

Description

Technical Field

[0001] This invention relates to the field of soybean milk processing equipment technology, and in particular to a soybean milk filtration device. Background Technology

[0002] In the processing of soy products such as tofu and dried tofu, the raw materials need to be made into soy milk first, and then further processed. During the processing of soy milk, it needs to be filtered to separate the soy pulp. A soy milk filtering device provided by Chinese Patent No. CN213699074U can be used, including a filter chamber and a stepper motor. The filter chamber has a filter screen inside, and the outer side of the filter screen is fixedly connected to the inner wall of the filter chamber. A filter residue box runs longitudinally through the top right side of the filter chamber, and the top edge of the filter residue box is attached to the filter screen. A waterproof cover for the motor is located above the middle of the filter chamber, and both ends of the waterproof cover are fixedly connected to the inner wall of the filter chamber. A stepper motor is installed inside the waterproof cover. This utility model facilitates the scraping and collection of filter residue. When the device is rinsed, the surface of the filter screen is automatically cleaned, eliminating the need for laborious scrubbing by the user and efficiently cleaning hard-to-clean parts of the device. The device can be disassembled into several parts, reducing hygiene dead corners, and can be fixed to a cup. The fixing operation is simple and convenient. The device is highly practical and convenient. However, the device has low filtration efficiency during application and is not suitable for large-scale soy product production. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a soybean milk filtration device that solves the problem of low filtration efficiency in existing filtration devices.

[0004] According to an embodiment of the present invention, a soybean milk filtration device includes a tank body, a detachable lid on the top of the tank body, and a filter assembly communicating with the inside and outside of the tank body on the lid, allowing external air to enter the tank body after being filtered by the filter assembly. A filter hopper and a dividing hopper, distributed vertically, are fixedly connected to the inner wall of the tank body. The filter hoppers have a plurality of first filter holes, and the bottom of the dividing hopper has an opening. An inlet pipe communicating with the inside and outside of the tank body is fixedly connected to the tank body and extends into the filter hopper. An air extraction assembly communicating with the inside of the tank body outside the dividing hopper is also fixedly connected to the tank body. A first drain pipe communicating with the bottom of the tank body is also fixedly connected to the tank body. A guide pipe is connected to the bottom of the filter hopper and extends fixedly to the outside of the tank body. The tank body volume in this solution can be set to be larger to increase production capacity, and the filter hoppers inside the tank body also have a larger filtration area, which can improve filtration efficiency. Therefore, it can solve the problem of low filtration efficiency in existing filtration devices.

[0005] Furthermore, the air extraction assembly includes a connecting horizontal pipe fixedly connected to the tank body, and a connecting vertical pipe fixedly connected to the connecting horizontal pipe. The upper end of the connecting vertical pipe is higher than the dividing hopper, and the connecting horizontal pipe is located between the upper and lower ends of the dividing hopper.

[0006] Furthermore, the air extraction assembly also includes a reinforcing horizontal pipe that is fixedly connected to the upper end of the connecting vertical pipe and also fixedly connected to the tank body.

[0007] Furthermore, the air filtration assembly includes a mounting cylinder that is fixedly connected to and communicates with the tank cover, a mounting plate that is detachably connected to the mounting cylinder, and an air inlet cylinder that is fixedly connected to the mounting plate. A filter element can also be detachably installed inside the air inlet cylinder. The air inlet cylinder is also fixedly connected to an air inlet pipe. Air enters the air inlet cylinder through the air inlet pipe and then passes through the filter element into the mounting cylinder.

[0008] Furthermore, the filter element includes a filter cylinder detachably connected to the air intake cylinder, the bottom of the filter cylinder is provided with several second filter holes, the top of the filter cylinder is detachably provided with a first cylinder cover, the side wall of the filter cylinder is provided with an air intake hole communicating with the air intake pipe, and a filter plate covering the air intake hole is fixedly connected to the inner wall, the filter plate is provided with several third filter holes, and the filter cylinder is filled with filter medium.

[0009] Furthermore, the first cylinder cover is fixedly connected to a stop rod, the stop rod extends downward and is also fixedly connected to a cover plate, the cover plate has several perforations, and the cover plate is located below the upper edge of the air inlet, and the filter medium is located below the cover plate.

[0010] Furthermore, the filter cartridge is vertically arranged and has a clearance fit with the air inlet cylinder. The filter cartridge and the air inlet cylinder are connected by a screw. The first cylinder cover is also fixedly connected to a throttle handle and is also threadedly connected to the upper inner wall of the filter cartridge.

[0011] Furthermore, the tank cover includes a ring cover section detachably connected to the tank body and a top cover section detachably connected to the ring cover section, with the mounting cylinder fixedly connected to the top cover section.

[0012] Furthermore, a maintenance cylinder located below the dividing hopper is fixedly connected to the side wall of the tank. The maintenance cylinder extends laterally and is detachably connected to a second cylinder cover. A second drain pipe connecting the inside and outside of the tank is also fixedly connected to the second cylinder cover.

[0013] Furthermore, a transparent viewing window is provided on the second cylinder cover.

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

[0015] The tank and the internal filter bucket can be made larger according to specific circumstances to improve the filtration capacity. At the same time, the air extraction component is connected to an external air extraction device, which can make the space below the filter bucket inside the tank in a negative pressure state, thereby further improving the filtration efficiency. This solves the problem of low filtration efficiency in existing filtration devices, making the filtration device provided by this invention suitable for larger-scale soybean product production.

[0016] An air filtration assembly is also installed on the tank. The air filtration assembly allows external air to enter and filters the air while maintaining normal filtration, preventing external impurities from being introduced into the soy milk.

[0017] The feed tube allows for easy removal of filtered soybean residue during cleaning, improving cleaning efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention;

[0019] Figure 2 This is a schematic diagram of the air filtration assembly structure according to an embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of the second cylindrical cover structure according to an embodiment of the present invention;

[0021] In the above attached figures:

[0022] 1. Tank body; 2. Tank cover; 3. Filter hopper; 4. Divider hopper; 5. Feed pipe; 6. Opening; 7. Liquid inlet pipe; 8. First drain pipe; 9. Reinforcing horizontal pipe; 10. Connecting vertical pipe; 11. Connecting horizontal pipe; 12. Mounting cylinder; 13. Mounting plate; 14. Air inlet cylinder; 15. Air inlet pipe; 16. Filter cylinder; 17. First cylinder cover; 18. Filter plate; 19. Support rod; 20. Cover plate; 21. Filter medium; 22. Valve; 23. Ring cover section; 24. Top cover section; 25. Inspection cylinder; 26. Second cylinder cover; 27. Second drain pipe; 28. Transparent viewing window. Detailed Implementation

[0023] The technical solutions of the present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] 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.

[0025] In an exemplary implementation, such as Figure 1As shown, this embodiment provides a soy milk filtering device, which includes a tank 1. A tank cover 2 is detachably installed on the top of the tank 1. A filter assembly communicating between the inside and outside of the tank 1 is installed on the tank cover 2. External air enters the tank 1 after being filtered by the filter assembly, meaning that the inside and outside of the tank 1 are in a connected state in this solution. Filter hoppers 3 and dividing hoppers 4 are also fixedly connected to the inner wall of the tank 1, arranged vertically. Filter hoppers 3 are located above dividing hoppers 4, and the lower end of filter hoppers 3 extends into dividing hoppers 4. Both filter hoppers 3 and dividing hoppers 4 are funnel structures that are larger at the top and smaller at the bottom. Specifically, filter hoppers 3 are provided with several first filter holes, and a guide pipe 5 is fixedly connected to the bottom of filter hoppers 3. The guide pipe 5 passes through the dividing hoppers 4 in sequence. The partition hopper 4 and the tank body 1 extend outside the tank body 1. The bottom of the partition hopper 4 has an opening 6, meaning the upper and lower parts of the partition hopper 4 are connected. A liquid inlet pipe 7, connecting the inside and outside of the tank body 1, is also fixedly connected to the tank body 1 and extends into the filter hopper 3. The liquid inlet pipe 7 is used to introduce the soy milk to be filtered. After entering the filter hopper 3, the soy milk passes through the first filter hole and flows down to the partition hopper 4, then through the opening 6 to the bottom of the tank body 1. A first drain pipe 8, connecting the inside and outside of the tank body 1, is also fixedly connected to the bottom of the tank body 1 to discharge the filtered soy milk. Furthermore, an air extraction assembly, communicating with the inside of the tank body 1 outside the partition hopper 4, is also fixedly connected to the tank body 1. The air extraction assembly can also be connected to external air extraction equipment, such as a fan, to facilitate air extraction. The extraction assembly draws the gas out of the tank 1, creating a negative pressure in the space below the filter hopper 3 within the tank 1, thereby further improving filtration efficiency. This solves the problem of low filtration efficiency in existing filtration devices, making the filtration device provided in this invention suitable for larger-scale soybean product production. After a period of filtration, a significant amount of soybean residue will accumulate on the filter hopper 3. At this point, filtration can be stopped, and the tank lid 2 can be opened for cleaning. During cleaning, the feed pipe 5 allows the soybean residue to be discharged. Specifically, rinsing water can be sprayed into the filter hopper 3, and the soybean residue enters the feed pipe 5 with the rinsing water and is then discharged. Since the feed pipe 5 is located at the bottom of the filter hopper 3, this... The soybean residue, distributed in a ring shape above the feed pipe 5, can enter the feed pipe 5 more smoothly, resulting in relatively high cleaning efficiency. When the washing water discharged from the feed pipe 5 becomes clean, it indicates that the soybean residue cleaning is complete, and the next round of filtration can begin. Furthermore, the feed pipe 5 is fixed to the lower end of the filter hopper 3, and also fixed to pass through the lower end of the separator hopper 4 and through the tank body 1. This helps to indirectly fix the lower ends of the filter hopper 3 and the separator hopper 4 to the tank body 1. The lower and upper ends of the filter hopper 3 and the separator hopper 4 are both fixed, which ultimately enhances the stability of the filter hopper 3 and the separator hopper 4, allowing them to remain stable for a long time during the operation of the air extraction component.

[0026] like Figure 1As shown, the suction assembly is connected to a separate suction device (such as a fan) to evacuate air from the tank 1. More specifically, the suction assembly includes a reinforcing horizontal pipe 9 fixedly connected to the outer wall of the tank 1. One end of the reinforcing horizontal pipe 9 is away from the tank 1, and the other end connected to the tank 1 is not connected to the tank 1. The away end of the reinforcing horizontal pipe 9 extends laterally and is used to connect to the suction device. The suction assembly also includes a connecting vertical pipe 10 fixedly connected to and communicating with the reinforcing horizontal pipe 9. The connecting vertical pipe 10 extends downward and is also fixedly connected to a connecting horizontal pipe 11. The connecting horizontal pipe 11 is fixedly connected between the tank 1 and the connecting vertical pipe 10 and communicates with each other. Thus, when the suction device is running, it evacuates air from the tank 1 through the reinforcing horizontal pipe 9, the connecting vertical pipe 10, and the connecting horizontal pipe 11. The connecting horizontal pipe 11 is located in the partition hopper. Between the upper and lower ends, closer to the upper end of the dividing hopper 4, there is a greater distance between the soy milk from the dividing hopper 4 to the bottom of the tank 1 and the connecting horizontal pipe 11, making it less likely to be drawn into the connecting horizontal pipe 11; in a further embodiment, an outlet is provided at the lower end of the connecting vertical pipe 10 below the connecting horizontal pipe 11, so that even if some soy milk is drawn into the connecting horizontal pipe 11, it will remain in the lower end of the connecting vertical pipe 10 and be released after the operation is completed; more specifically, the upper end of the connecting vertical pipe 10 is located above the dividing hopper 4, so that the reinforcing horizontal pipe 9 is in a higher position, to prevent soy milk from accidentally entering the connecting horizontal pipe 11 and continuing to be drawn upward into the subsequent air extraction equipment; the reinforcing horizontal pipe 9 also serves to strengthen the connection between the entire air extraction assembly and the tank 1.

[0027] like Figure 1 , 2As shown, this solution includes a filtration assembly to cooperate with the extraction assembly for normal operation, allowing external air to enter the tank 1 and then be extracted by the extraction assembly, thus assisting in the filtration of the soy milk. Furthermore, the filtration assembly includes a mounting cylinder 12 fixedly connected to and communicating with the tank lid 2, a mounting plate 13 detachably connected to the mounting cylinder 12, and an air inlet cylinder 14 fixedly connected to the mounting plate 13. A filter element is detachably installed inside the air inlet cylinder 14, and an air inlet pipe 15 is also fixedly connected to the air inlet cylinder 14. Air enters the air inlet cylinder 14 through the air inlet pipe 15, then passes through the filter element into the mounting cylinder 12. During this process, particulate impurities in the air are intercepted, thus preventing impurities from being carried into the soy milk. Even further, the filter element includes a mounting cylinder 14 that is detachably connected to the air inlet cylinder 14. The filter cylinder 16 is detached. The bottom of the filter cylinder 16 has several second filter holes, and the top of the filter cylinder 16 has a detachable first cover 17. The side wall of the filter cylinder 16 has an air inlet hole communicating with the air inlet pipe 15, and the inner wall is also fixedly connected to a filter plate 18 covering the air inlet hole. The filter plate 18 has several third filter holes. The filter cylinder 16 is filled with filter medium 21. Air enters the filter cylinder 16 through the air inlet hole after passing through the air inlet pipe 15, then passes through the filter medium 21, and exits through the second filter holes at the bottom, also passing through the third filter holes. The filter medium 21 can be filter cotton, activated carbon, etc., to intercept particulate impurities in the air. The filter cylinder 16 and air inlet pipe 14 can be configured as follows: The filter media 21 is made of transparent material, allowing observation of its state after impurities are intercepted, enabling timely updates and maintenance. More specifically, a stop rod 19 is fixedly connected to the first cylinder cover 17. The stop rod 19 extends downwards and is also fixedly connected to a cover plate 20. The cover plate 20 has several perforations and is located below the upper edge of the air inlet. The filter media 21 is located below the cover plate 20. In other words, the cover plate 20 provides a limit to the upper part of the filter media 21 within the filter cylinder 16, restricting its lower end. Air can pass through the filter plate 18 and directly enter the filter media 21, or it can pass from above to above the cover plate 20 and then downwards through the cover plate 20 before entering the filter media 21, both achieving the filtration effect. The first cylinder cover 17 can be screwed upwards. The filter media 21 can be easily replaced by removing the cover plate 20. Furthermore, the filter cylinder 16 in this design can be removed from the air inlet cylinder 14, meaning that the air inlet cylinder 14 and the filter cylinder 16 are detachable. The filter cylinder 16 is vertically arranged and has a clearance fit with the air inlet cylinder 14. The filter cylinder 16 and the air inlet cylinder 14 are connected by a screw. The first cylinder cover 17 is also fixedly connected to a handle and is also threadedly connected to the upper inner wall of the filter cylinder 16, which facilitates the maintenance of the filter cylinder 16. Furthermore, the air inlet cylinder 14 and the mounting plate 13 are fixedly connected, and the mounting plate 13 is detachably connected to the mounting cylinder 12. This allows the mounting plate 13 and the mounting cylinder 12 to be disassembled for inspection and maintenance operations inside the air inlet cylinder 14 and the mounting cylinder 12.

[0028] like Figure 1 As shown, the tank cover 2 in this solution includes a ring cover section 23 that is detachably connected to the tank body 1 and a top cover section 24 that is detachably connected to the ring cover section 23 (the ring cover section 23 can also be fixedly connected to the tank body 1). The mounting cylinder 12 is fixedly connected to the top cover section 24, that is, the mounting cylinder 12 can be removed together with the top cover section 24 for more thorough inspection and maintenance. The ring cover section 23 and the top cover section 24 can be bolted together for easy connection and disassembly. An elastic gasket can also be added between the two to increase the sealing performance.

[0029] like Figure 1 , 3 As shown, a maintenance cylinder 25 located below the dividing hopper 4 is fixedly connected to the side wall of the tank 1. The maintenance cylinder 25 extends laterally and is detachably connected to a second cylinder cover 26. A second drain pipe 27 connecting the inside and outside of the tank 1 is fixedly connected to the second cylinder cover 26. The second drain pipe 27 is located at a higher position at the lower end of the tank 1 and below the dividing hopper 4, allowing the upper layer of soy milk at the lower end of the tank 1 to be discharged. When discharging soy milk, the first drain pipe 8 and the second drain pipe 27 can be opened simultaneously, which is more efficient. Additionally, the second cylinder cover... A transparent viewing window 28 extending from top to bottom is also provided on 26 to observe the situation at the lower end of the tank 1; more specifically, when the level of soy milk at the lower end of the tank 1 rises above the second cylinder cover 26, it will continue to rise and close the opening 6 at the lower end of the separator hopper 4. At this time, it is necessary to stop the operation, release the soy milk first, and then continue the operation; in particular, valves 22 that control the opening and closing of the liquid inlet pipe 7, the first drain pipe 8, the second drain pipe 27, the guide pipe 5, the lower end of the connecting vertical pipe 10, and the reinforcing horizontal pipe 9 are all installed in this solution.

[0030] 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 soybean milk filtering device, characterized in that, The device includes a tank body with a detachable lid on top. The lid has a filter assembly connecting the inside and outside of the tank, allowing outside air to enter the tank body after being filtered by the filter assembly. The inner wall of the tank body is also fixedly connected to vertically distributed filter hoppers and partition hoppers. Each filter hopper has several first filter holes, and the bottom of each partition hopper has an opening. A liquid inlet pipe connecting the inside and outside of the tank body is also fixedly connected to the tank body, extending into the filter hoppers. An air extraction assembly communicating with the tank body's interior outside the partition hoppers is also fixedly connected to the tank body. A first drain pipe communicating with the bottom of the tank body is also fixedly connected to the tank body. A guide pipe is also connected to the bottom of each filter hopper, extending fixedly to the outside of the tank body.

2. The soy milk filtering device as described in claim 1, characterized in that, The air extraction assembly includes a horizontal connecting pipe fixedly connected to the tank body, and a vertical connecting pipe fixedly connected to the horizontal connecting pipe. The upper end of the vertical connecting pipe is higher than the separator hopper, and the horizontal connecting pipe is located between the upper and lower ends of the separator hopper.

3. The soybean milk filtering device as described in claim 2, characterized in that, The air extraction assembly also includes a reinforcing horizontal pipe that is fixedly connected to the upper end of the connecting vertical pipe and also fixedly connected to the tank body.

4. The soybean milk filtering device as described in claim 1, characterized in that, The air filtration assembly includes a mounting cylinder that is fixedly connected to and communicates with the tank cover, a mounting plate that is detachably connected to the mounting cylinder, and an air inlet cylinder that is fixedly connected to the mounting plate. A filter element can also be detachably installed inside the air inlet cylinder. The air inlet cylinder is also fixedly connected to an air inlet pipe. Air enters the air inlet cylinder through the air inlet pipe, and then passes through the filter element into the mounting cylinder.

5. The soybean milk filtering device as described in claim 4, characterized in that, The filter element includes a filter cylinder detachably connected to the air intake cylinder, a number of second filter holes at the bottom of the filter cylinder, a first cylinder cover detachably provided at the top of the filter cylinder, an air intake hole communicating with the air intake pipe on the side wall of the filter cylinder, and a filter plate covering the air intake hole fixedly connected to the inner wall, a number of third filter holes provided on the filter plate, and a filter medium filled inside the filter cylinder.

6. The soybean milk filtering device as described in claim 5, characterized in that, The first cylinder cover is fixedly connected to a stop rod, which extends downward and is also fixedly connected to a cover plate. The cover plate has several perforations and is located below the upper edge of the air inlet. The filter medium is located below the cover plate.

7. The soy milk filtering device as described in claim 5, characterized in that, The filter cartridge is vertically arranged and has a clearance fit with the air inlet cylinder. The filter cartridge and the air inlet cylinder are connected by a screw. The first cylinder cover is also fixedly connected to a throttle handle and is also threadedly connected to the upper inner wall of the filter cartridge.

8. The soy milk filtering device as described in claim 4, characterized in that, The tank cover includes a ring cover section that is detachably connected to the tank body and a top cover section that is detachably connected to the ring cover section, with the mounting cylinder fixedly connected to the top cover section.

9. The soy milk filtering device according to any one of claims 1-8, characterized in that, A maintenance cylinder located below the dividing hopper is also fixedly connected to the side wall of the tank. The maintenance cylinder extends laterally and is also detachably connected to a second cylinder cover. A second drain pipe connecting the inside and outside of the tank is also fixedly connected to the second cylinder cover.

10. The soy milk filtering device as described in claim 9, characterized in that, The second cylinder cover has a transparent viewing window.

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