A refining apparatus for a solid beverage powder

Abstract

This invention relates to the field of solid beverage production technology, specifically to a fine grinding device for solid beverage powder, comprising a feeding pipe, a gas compressor connected to the front end of the feeding pipe, a grinding cylinder connected to the rear end of the feeding pipe, and a fine grinding tank for secondary grinding. The grinding cylinder performs initial grinding, sufficient to grind the solid beverage into powder. The fine grinding tank then performs secondary pulverization, using a principle similar to a high-speed blender, where high-speed rotating blades grind the solid beverage into fine powder, and the high-frequency vibration of a tuning fork further enhances the pulverization effect. Neither the grinding cylinder nor the fine grinding tank is connected to the external atmosphere, and the solid beverage is transported entirely by high-speed nitrogen gas blown by the gas compressor. Furthermore, an air cooler is installed on the nitrogen outlet pipe connecting the gas compressor and the nitrogen storage tank. Therefore, the solid beverage powder is kept in a cold nitrogen environment throughout the process, greatly avoiding heating and oxidation of the powder and ensuring the quality of the final product.

Description

Technical Field

[0001] This invention relates to the field of solid beverage production technology, and in particular to a fine grinding device for solid beverage powder. Background Technology

[0002] As people's lives improve, travel and outdoor activities are becoming a regular part of many people's lives. Solid beverages, due to their low water content, ease of carrying and storage, and long shelf life, are ideal for travel and outdoor activities, and have a very promising market prospect.

[0003] Currently, there are many types of solid beverages on the market, but most are made primarily from sugar, milk, fruit juice, or edible plant extracts, with the addition of appropriate auxiliary materials or food additives. Specifically, they are generally made by removing water from liquid beverages.

[0004] However, solid beverages that have undergone preliminary drying to remove moisture are not always in powder form. Depending on the type of raw materials, many preliminary dried solid beverages are in clumps or granules. In order to make solid beverages dissolve more easily and quickly when brewed, and to improve the user experience, it is necessary to grind the clumps or granules into powder, and the finer the powder, the better.

[0005] Common methods of grinding beverages manually or mechanically are insufficient in precision to produce fine powders. More importantly, the grinding process generates heat, which can alter the properties of the beverage. Furthermore, finer powders are more prone to oxidation. Therefore, the grinding process can easily lead to a decline in the taste and nutritional value of the final powdered beverage product due to heating and oxidation, thus affecting the overall quality. Summary of the Invention

[0006] In view of this, the purpose of this invention is to provide a fine grinding device for solid beverage powder, so as to solve the problems in the prior art that it is difficult to grind solid beverage into micro powder due to insufficient precision, and that the taste and nutrition of the final solid beverage powder product are easily reduced due to heating and oxidation during the grinding process.

[0007] To achieve the above objectives, the present invention provides a fine grinding apparatus for solid beverage powder, comprising a feeding funnel for discharging the solid beverage and a feed pipe for feeding the solid beverage to the fine grinding process, wherein the feeding funnel is located above and communicates with the feed pipe, and the fine grinding apparatus further comprises:

[0008] A gas compressor is connected to the front end of the feed pipe, and the gas inlet of the gas compressor is connected to a nitrogen storage tank;

[0009] A grinding cylinder connected to the rear end of the feed pipe is used to grind solid beverages. The grinding cylinder is fixedly connected to the mounting base, and the outlet end of the grinding cylinder is also connected to a discharge pipe. A drive motor is also connected to the mounting base.

[0010] The fine grinding tank, which is connected to the rear end of the discharge pipe, is used for secondary grinding of solid beverages. The fine grinding tank is also connected to a nitrogen storage tank via a nitrogen return pipe.

[0011] Furthermore, the grinding cylinder is provided with a plurality of rotating grinding tubes and fixed grinding tubes, which are interlocked in a ring. The rotating grinding tubes are movably connected inside the grinding cylinder, while the fixed grinding tubes are fixedly connected inside the grinding cylinder.

[0012] Furthermore, the mounting base is rotatably connected to a transmission wheel, which is connected to the output shaft of a drive motor via a transmission mechanism. The rotating grinding tube is fixedly connected to the transmission wheel and rotatably connected to the mounting base, while the fixed grinding tube is fixedly connected to the mounting base.

[0013] Furthermore, both the rotating grinding tube and the fixed grinding tube are provided with material inlets. The material inlet on the rotating grinding tube is located on the left side of the rotating grinding tube, and the material inlet on the fixed grinding tube is located on the right side of the fixed grinding tube.

[0014] Furthermore, the feed pipe is connected to the gap between the outermost fixed grinding pipe and the grinding cylinder, the discharge pipe is connected to the inner cavity of the innermost rotating grinding pipe, and a grinding gap is provided between adjacent rotating grinding pipes and fixed grinding pipes, with the space of the grinding gap becoming smaller as it goes further in.

[0015] Furthermore, an upper filter screen and a lower filter screen are fixedly connected inside the grinding tank, the outlet end of the discharge pipe is located below the lower filter screen, and the inlet end of the nitrogen return pipe is located above the upper filter screen.

[0016] Furthermore, a second drive motor is fixedly installed on the top of the grinding tank. The output shaft of the second drive motor is fixedly connected to a central rotating shaft via a connecting rod. The lower end of the central rotating shaft passes through the upper and lower filter screens and is rotatably connected to them. The lower end of the central rotating shaft is rotatably connected to the base of the grinding tank.

[0017] Furthermore, several fan blades and tuning forks are fixedly connected to the central rotating shaft. The fan blades rotate to crush solid beverage powder and blow air upwards, while the tuning forks vibrate at high frequency to further improve the crushing effect.

[0018] Furthermore, the side wall of the grinding tank is provided with a lower discharge port and an upper discharge port. The lower discharge port is located at the bottom of the grinding tank, and the upper discharge port is located between the upper filter screen and the lower filter screen. The lower discharge port and the upper discharge port are respectively connected to a lower discharge plate and an upper discharge plate, and the lower discharge plate and the upper discharge plate are detachably connected to the grinding tank.

[0019] Furthermore, a vibration motor is provided between the upper and lower filter screens, and the gas compressor is connected to the nitrogen storage tank through a nitrogen outlet pipe, and an air cooler is also provided on the nitrogen outlet pipe.

[0020] The beneficial effects of the present invention are as follows: 1. A grinding cylinder is set up for initial grinding. The grinding cylinder adopts a structure in which multiple sets of rotating grinding tubes and fixed grinding tubes are interlocked in a ring. The solid beverage is ground by rotating the rotating grinding tubes and the fixed grinding tubes rotating relative to each other. The grinding gap between the rotating grinding tubes and the fixed grinding tubes becomes smaller as it goes inward, so that the grinding is gradually refined, which is sufficient to grind the solid beverage into powder.

[0021] 2. Then, a fine grinding tank is set up for secondary pulverization. In the fine grinding tank, a central rotating shaft drives the fan blades and tuning fork to rotate at high speed for secondary pulverization. The fan blades are made of high-hardness metal and are blade-shaped. Through a principle similar to that of a high-speed blender, the high-speed rotating blades grind the solid beverage into fine powder, while the high-frequency vibration of the tuning fork can further improve the pulverization effect.

[0022] 3. Neither the grinding cylinder nor the fine grinding tank is connected to the outside atmosphere, and both are filled with nitrogen. The entire process of transporting the solid beverage is driven by high-speed nitrogen blown out by a gas compressor. Furthermore, an air cooler is installed on the nitrogen outlet pipe connecting the gas compressor and the nitrogen storage tank. Therefore, the solid beverage powder is in a cold nitrogen environment throughout the process, which greatly avoids heating and oxidation of the solid beverage powder and ensures the quality of the final product.

[0023] 4. Solid beverage powder is filtered through a double-layer filter screen, upper and lower, thus recovering sufficiently pure nitrogen. The fan blades in the grinding tank also blow air upwards when they rotate, facilitating the separation of nitrogen and solid beverage powder with the upper and lower filters. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the overall structure and principle of the device of the present invention.

[0026] Figure 2 This is a schematic diagram of the grinding cylinder portion in the device of the present invention.

[0027] Figure 3 This is a schematic diagram of the grinding tank section in the device of the present invention.

[0028] Figure 4 This is a schematic diagram of the internal structure of the grinding cylinder and the fine grinding tank in the device of the present invention.

[0029] Figure 5 for Figure 4 Enlarged view of part A in the middle.

[0030] Figure 6 for Figure 4 Enlarged view of section B.

[0031] The diagram is marked as follows:

[0032] 11. Feeding hopper, 12. Feed pipe, 13. Gas compressor, 14. Grinding cylinder, 15. Mounting base, 16. Drive motor one, 17. Nitrogen outlet pipe, 18. Nitrogen storage tank, 19. Discharge pipe, 20. Fine grinding tank, 21. Nitrogen return pipe, 22. Drive motor two, 23. Lower discharge plate, 24. Upper discharge plate, 101. Transmission wheel, 102. Rotating grinding cylinder, 103. Fixed grinding cylinder, 104. Material inlet, 105. Grinding seam, 201. Connecting rod, 202. Central rotating shaft, 203. Upper filter screen, 204. Lower filter screen, 205. Vibration motor, 206. Fan blade, 207. Tuning fork. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments.

[0034] It should be noted that, unless otherwise defined, the technical or scientific terms used in this invention should have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms "first," "second," and similar terms used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0035] The first aspect of the invention, as Figure 1 and Figure 4 As shown, the grinding process of solid beverages generates heat, which can easily alter the properties of the solid beverage. Furthermore, the finer the solid beverage is ground, the more easily it oxidizes. Therefore, during the grinding process, heating and oxidation can easily lead to a decline in the taste and nutritional value of the final solid beverage powder product, affecting the quality of the final product. To solve this problem, this invention designs a fully sealed fine grinding device, specifically including a feeding funnel 11 for discharging the solid beverage and a feed pipe 12 for feeding the solid beverage to the fine grinding process. The feeding funnel 11 is located above and connected to the feed pipe 12. A gas compressor 13 is installed at the front end of the feed pipe 12, and the air inlet of the gas compressor 13 is connected to a nitrogen storage tank 18.

[0036] The rear end of the feed pipe 12 is connected to the grinding cylinder 14 for grinding solid beverages. The grinding cylinder 14 is fixedly connected to the mounting base 15, and the outlet end of the grinding cylinder 14 is also connected to the discharge pipe 19. In addition, the mounting base 15 is also connected to the drive motor 16, which is used to drive the grinding mechanism inside the grinding cylinder 14. The structure and appearance of the grinding cylinder 14 and the drive motor 16 are as follows. Figure 2 As shown.

[0037] The outlet end of the grinding cylinder 14 is also connected to a discharge pipe 19, the rear end of which is connected to the fine grinding tank 20 for secondary grinding of solid beverages. Finally, the fine grinding tank 20 is connected to the nitrogen storage tank 18 via a nitrogen return pipe 21. The structure and appearance of the grinding cylinder 14 are as follows. Figure 3 As shown.

[0038] Preferably, the gas compressor 13 is connected to the nitrogen storage tank 18 via the nitrogen outlet pipe 17, and the nitrogen outlet pipe 17 is also equipped with an air cooler.

[0039] The entire grinding process of solid beverage powder takes place in a nitrogen environment. Neither the grinding cylinder 14 nor the fine grinding tank 20 is connected to the outside atmosphere, and both are filled with nitrogen. The solid beverage is transported entirely by high-speed nitrogen gas blown out by the gas compressor 13. Furthermore, an air cooler is installed on the nitrogen outlet pipe 17 to continuously cool the nitrogen entering the grinding process. Therefore, throughout the entire fine grinding process, the solid beverage powder is in a cold nitrogen environment, greatly avoiding heating and oxidation of the powder and ensuring the quality of the final product.

[0040] The second aspect of the invention, as Figure 4 , Figure 5 and Figure 6As shown, current common methods of manual or mechanical grinding are insufficient in precision, making it difficult to grind solid beverages into fine powder. Therefore, this invention designs a grinding cylinder 14 and a fine grinding jar 20 for multiple fine grinding processes.

[0041] The grinding cylinder 14 is provided with several rotating grinding tubes 102 and fixed grinding tubes 103, and the rotating grinding tubes 102 and fixed grinding tubes 103 are interlocked. The rotating grinding tubes 102 are movably connected inside the grinding cylinder 14, while the fixed grinding tubes 103 are fixedly connected inside the grinding cylinder 14.

[0042] Specifically, a transmission wheel 101 is rotatably connected to the mounting base 15. The transmission wheel 101 is connected to the output shaft of the drive motor 16 via a transmission mechanism. The rotating grinding tube 102 is fixedly connected to the transmission wheel 101 and rotatably connected to the mounting base 15. A fixed grinding tube 103 is also fixedly connected to the mounting base 15. Material inlets 104 are provided on both the rotating grinding tube 102 and the fixed grinding tube 103. The material inlet 104 on the rotating grinding tube 102 is located on the left side of the rotating grinding tube 102, while the material inlet 104 on the fixed grinding tube 103 is located on the right side of the fixed grinding tube 103.

[0043] Preferably, the feed pipe 12 is connected to the gap between the outermost fixed grinding pipe 103 and the grinding cylinder 14, the discharge pipe 19 is connected to the inner cavity of the innermost rotating grinding pipe 102, and a grinding gap 105 is provided between adjacent rotating grinding pipes 102 and fixed grinding pipes 103, and the space of the grinding gap 105 becomes smaller as it goes inward.

[0044] The grinding cylinder 14 is set up for initial grinding. The grinding cylinder 14 adopts a structure in which multiple sets of rotating grinding tubes 102 and fixed grinding tubes 103 are interlocked. The solid beverage is ground by rotating the rotating grinding tubes 102 and the fixed grinding tubes 103 relative to each other. The grinding gap 105 between the rotating grinding tubes 102 and the fixed grinding tubes 103 gets smaller as it goes inward, so that the grinding is gradually refined, which is enough to grind the solid beverage into powder.

[0045] Inside the grinding tank 20, an upper filter screen 203 and a lower filter screen 204 are fixedly connected. The outlet end of the discharge pipe 19 is located below the lower filter screen 204, while the inlet end of the nitrogen return pipe 21 is located above the upper filter screen 203. Additionally, a second drive motor 22 is fixedly installed on the top of the grinding tank 20. The output shaft of the second drive motor 22 is fixedly connected to a central rotating shaft 202 via a connecting rod 201. The lower end of the central rotating shaft 202 passes through the upper filter screen 203 and the lower filter screen 204 and is rotatably connected to them. The lower end of the central rotating shaft 202 is also rotatably connected to the base of the grinding tank 20.

[0046] Furthermore, a number of fan blades 206 and tuning forks 207 are fixedly connected to the central rotating shaft 202. The fan blades 206 rotate to crush solid beverage powder and blow air upwards, while the tuning forks 207 vibrate at high frequency to further improve the crushing effect.

[0047] In addition, a lower discharge port and an upper discharge port are provided on the side wall of the fine grinding tank 20. The lower discharge port is located at the bottom of the fine grinding tank 20, while the upper discharge port is located between the upper filter screen 203 and the lower filter screen 204. The lower discharge port and the upper discharge port are respectively connected to the lower discharge plate 23 and the upper discharge plate 24, and the lower discharge plate 23 and the upper discharge plate 24 are detachably connected to the fine grinding tank 20. After the entire fine grinding process is completed, first turn off all power equipment, then close the valves on the nitrogen outlet pipe 17, the discharge pipe 19, and the nitrogen return pipe 21, and finally, the material can be removed by opening the lower discharge plate 23 and the upper discharge plate 24.

[0048] Preferably, a vibration motor 205 is provided between the upper filter screen 203 and the lower filter screen 204 to vibrate the upper filter screen 203 and the lower filter screen 204, so that the solid beverage powder falls off and does not adhere to it, facilitating the flow of nitrogen gas.

[0049] The secondary grinding is carried out in the fine grinding tank 20. The fine grinding tank 20 uses a central rotating shaft 202 to drive the fan blades 206 and tuning fork 207 to rotate at high speed for secondary grinding. The fan blades 206 are made of high-hardness metal and are blade-shaped. Through a principle similar to a high-speed blender, the high-speed rotating blades grind the solid beverage into fine powder. The high-frequency vibration of the tuning fork 207 can further improve the grinding effect.

[0050] Using the double-layer filter screen 203 and 204 to filter solid beverage powder is effective, thus recovering enough pure nitrogen. The fan blade 206 in the grinding tank 20 can also blow air upwards when it rotates, which facilitates the separation of nitrogen and solid beverage powder with the upper filter screen 203 and the lower filter screen 204.

[0051] In summary, this invention first uses a grinding cylinder 14 for initial grinding. The grinding cylinder 14 employs a multi-ringed structure of rotating grinding tubes 102 and fixed grinding tubes 103. The solid beverage is ground by the mutual rotation of the rotating and fixed grinding tubes 102 and 103. The grinding gap 105 between the rotating and fixed grinding tubes 102 and 103 decreases towards the inner edge, resulting in progressively finer grinding, sufficient to grind the solid beverage into powder. A fine grinding tank 20 is then used for secondary pulverization. In the fine grinding tank 20, a central rotating shaft 202 drives a fan blade 206 and a tuning fork 207 to rotate at high speed for secondary pulverization. The fan blade 206 is made of high-hardness metal and is blade-shaped. Similar to a high-speed blender, the high-speed rotating blades grind the solid beverage into fine powder, while the high-frequency vibration of the tuning fork 207 further enhances the pulverization effect. Neither the grinding cylinder 14 nor the fine grinding tank 20 is connected to the external atmosphere, and both are filled with nitrogen. The entire transport of the solid beverage is driven by high-speed nitrogen blown out by the gas compressor 13. Furthermore, an air cooler is installed on the nitrogen outlet pipe 17, which connects the gas compressor 13 to the nitrogen storage tank 18. Therefore, the solid beverage powder is in a cold nitrogen environment throughout the process, greatly avoiding heating and oxidation of the powder and ensuring the quality of the final product. Finally, the solid beverage powder is filtered through a double-layer filter screen 203 and a lower filter screen 204, thus recovering sufficiently pure nitrogen. The fan blades 206 in the fine grinding tank 20 also provide upward airflow when rotating, facilitating the separation of nitrogen and solid beverage powder in conjunction with the upper and lower filters 203 and 204.

[0052] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the invention includes the claims being limited to these examples; within the framework of the invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity.

[0053] This invention is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A fine grinding apparatus for solid beverage powder, comprising a feeding funnel (11) for discharging the solid beverage and a feed pipe (12) for feeding the solid beverage to the fine grinding process, wherein the feeding funnel (11) is located above and communicates with the feed pipe (12), characterized in that, The fine grinding equipment also includes: A gas compressor (13) is connected to the front end of the feed pipe (12), and the inlet of the gas compressor (13) is connected to the nitrogen storage tank (18); The grinding cylinder (14) connected to the rear end of the feed pipe (12) is used to grind solid beverages. The grinding cylinder (14) is fixedly connected to the mounting base (15), and the outlet end of the grinding cylinder (14) is also connected to the discharge pipe (19). The mounting base (15) is also connected to the drive motor (16). The fine grinding tank (20) connected to the rear end of the discharge pipe (19) is used for secondary grinding of solid beverages. The fine grinding tank (20) is also connected to the nitrogen storage tank (18) through the nitrogen return pipe (21). The grinding cylinder (14) is provided with a plurality of rotating grinding tubes (102) and fixed grinding tubes (103), and the rotating grinding tubes (102) and fixed grinding tubes (103) are interlocked in a ring. The rotating grinding tubes (102) are movably connected inside the grinding cylinder (14), and the fixed grinding tubes (103) are fixedly connected inside the grinding cylinder (14). The mounting base (15) is rotatably connected to a transmission wheel (101), the transmission wheel (101) is connected to the output shaft of a drive motor (16) through a transmission mechanism, the rotating grinding tube (102) is fixedly connected to the transmission wheel (101), and the rotating grinding tube (102) is rotatably connected to the mounting base (15), and the fixed grinding tube (103) is fixedly connected to the mounting base (15); Both the rotating grinding tube (102) and the fixed grinding tube (103) are provided with material inlets (104). The material inlet (104) on the rotating grinding tube (102) is located on the left side of the rotating grinding tube (102), and the material inlet (104) on the fixed grinding tube (103) is located on the right side of the fixed grinding tube (103). The feed pipe (12) is connected to the gap between the outermost fixed grinding pipe (103) and the grinding cylinder (14), and the discharge pipe (19) is connected to the inner cavity of the innermost rotating grinding pipe (102). A grinding seam (105) is also provided between adjacent rotating grinding pipes (102) and fixed grinding pipes (103), and the space of the grinding seam (105) becomes smaller as it goes further in.

2. A solid beverage powder refining apparatus according to claim 1, characterized in that, The grinding tank (20) is fixedly connected to an upper filter screen (203) and a lower filter screen (204). The outlet end of the discharge pipe (19) is located below the lower filter screen (204), and the inlet end of the nitrogen return pipe (21) is located above the upper filter screen (203).

3. A solid beverage powder refining apparatus according to claim 2, wherein A second drive motor (22) is fixedly installed on the top of the grinding tank (20). The output shaft of the second drive motor (22) is fixedly connected to a central rotating shaft (202) via a connecting rod (201). The lower end of the central rotating shaft (202) passes through the upper filter screen (203) and the lower filter screen (204) and is rotatably connected to them. The lower end of the central rotating shaft (202) is rotatably connected to the base of the grinding tank (20).

4. A solid beverage powder refining apparatus according to claim 3, wherein Several fan blades (206) and tuning forks (207) are also fixedly connected to the central rotating shaft (202). The fan blades (206) rotate to crush solid beverage powder and blow air upwards.

5. A solid beverage powder refining apparatus according to claim 2, wherein The grinding tank (20) is also provided with a lower discharge port and an upper discharge port on its side wall. The lower discharge port is located at the bottom of the grinding tank (20), and the upper discharge port is located between the upper filter screen (203) and the lower filter screen (204). The lower discharge port and the upper discharge port are respectively connected to a lower discharge plate (23) and an upper discharge plate (24). The lower discharge plate (23) and the upper discharge plate (24) are detachably connected to the grinding tank (20).

6. A solid beverage powder refining apparatus according to claim 2, wherein A vibration motor (205) is also provided between the upper filter (203) and the lower filter (204). The gas compressor (13) is connected to the nitrogen storage tank (18) through the nitrogen outlet pipe (17), and an air cooler is also provided on the nitrogen outlet pipe (17).

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