A device and process for producing high-stability yogurt

Abstract

The present invention provides a device for producing high-stability yogurt, wherein the outer cylinder is provided with an upper opening, the inner cylinder is movably arranged inside the outer cylinder, the outer cylinder is divided into a central space and an annular space, the cylinder wall of the inner cylinder is provided with a through hole connecting the two spaces; the cylinder cover is buckled on the upper opening of the outer cylinder; the central agitator is connected to the center of the bottom of the cylinder cover and the lower end extends into the central space; the external agitator is connected to the outer side of the bottom center of the cylinder cover and the lower end extends into the annular space; the driving motor drives the central agitator to rotate around the central rotating rod, and at the same time drives the external agitator to rotate around the external rotating rod and move circumferentially along the annular space. During the stirring process, the liquid raw materials at the edge of the production space are driven to enter the stirring center, and the upper and lower layers of liquid raw materials flow up and down to mix, so as to realize the all-round stirring of the liquid raw materials in the production space, so that the liquid raw materials are stirred evenly and refined and decomposed, the stability of the yogurt product is enhanced, and the appearance and drinking taste of the yogurt product are improved.

Description

Technical Field

[0001] The invention relates to the technical field of yogurt production, and in particular provides a device for producing high-stability yogurt. Background Art

[0002] Yogurt is made from milk fermented with lactic acid bacteria. In addition to all the advantages of milk, it also has health benefits due to the presence of a large number of lactic acid bacteria. It can inhibit the invasion of harmful bacteria into the intestines, promote intestinal peristalsis, digestion and absorption, prevent aging, and enhance immunity.

[0003] At present, the yogurt products on the market are mainly stirred type, and stirring is a very important process in the production of stirred yogurt. However, the existing yogurt processing and stirring devices still mostly use a single stirrer arranged at the center of the overall space. It is difficult for a single stirrer to stir the liquid raw materials in the large production space in all directions. In addition, during the stirring process, the liquid raw materials on the periphery of the production space cannot enter the stirring center, resulting in a long-term existence at the edge position to form a stirring dead corner; and the liquid raw materials in the upper and lower layers of the production space are difficult to form an upward and downward flow and mixing, resulting in uneven stirring of the upper and lower layers; in addition, yogurt is processed and produced by mixing multiple raw materials, and it is easy to form agglomerates during the stirring process. It is difficult to effectively refine and decompose the agglomerates by stirring only with a stirrer. The above-mentioned problems of uneven stirring and mixing and the inability to refine and decompose agglomerates cannot be effectively solved, resulting in poor stability of the produced yogurt, affecting the product appearance and drinking taste. Summary of the invention

[0004] Based on this, the present invention provides a device and process for producing high-stability yogurt. During the stirring process, liquid raw materials at the edge of the production space are driven to enter the stirring center, and the upper and lower layers of liquid raw materials flow up and down and mix, so as to achieve all-round stirring of the liquid raw materials in the production space, so that the liquid raw materials are stirred evenly and finely decomposed, effectively improving the stability of the yogurt product.

[0005] In order to achieve the above-mentioned objectives, in a first aspect, the present invention provides a device for producing high-stability yogurt, wherein an outer cylinder is provided with an upper opening; an inner cylinder is movably arranged in the outer cylinder and the lower end extends to the bottom of the outer cylinder, dividing the outer cylinder into a central space and an annular space, and a cylinder wall of the inner cylinder is provided with a through hole connecting the central space and the annular space; a cylinder cover is buckled on the upper opening of the outer cylinder; a central agitator is connected to the center of the bottom of the cylinder cover through a central rotating rod, and the lower end extends into the central space; an external agitator is connected to the outside of the center of the bottom of the cylinder cover through an external rotating rod, and the lower end extends into the annular space; a driving motor is arranged on the top of the cylinder cover, drivingly connected to the central agitator and the external agitator, and is configured to drive the central agitator to rotate around the central rotating rod, and at the same time drive the external agitator to rotate around the external rotating rod and move circumferentially along the annular space.

[0006] The cylinder cover is provided with a central gear and an external gear that mesh with each other, the central gear is connected to the upper end of the central rotating rod, the external gear is connected to the external rotating rod, and the driving motor is connected to the central gear to drive the central agitator and the external agitator to rotate; a plurality of external agitators are evenly distributed on the circumference of the annular space, a plurality of external gears are meshed on the outside of the central gear, and each of the external gears is connected to the external agitator.

[0007] An impeller is provided at the bottom of the central rotating rod, second through holes are evenly distributed on the top circumference of the inner cylinder, and third through holes are evenly distributed on the bottom circumference. The driving motor is configured to drive the liquid raw material in the central space to flow from the top to the bottom through the impeller, so as to drive the liquid raw material in the central space to enter the annular space through the third through hole, and the liquid raw material in the annular space returns to the inner cylinder through the second through hole, thereby forming a flow cycle.

[0008] The cylinder cover is also provided with an inner gear ring which is coaxially arranged with the center gear and can rotate freely. The outer gear is arranged in the annular space between the center gear and the inner gear ring. The gear teeth on one side of the outer gear are meshed with the center gear, and the gear teeth on the other side are meshed with the inner gear ring. The bottom plate of the inner gear ring is located on the outer circumference of the center through hole and is evenly distributed with external through holes. The upper end of the center rotating rod passes through the center through hole and is connected to the center gear. The upper end of the external rotating rod passes through the external through hole and is connected to the external gear, so as to drive each external agitator to rotate circumferentially along the annular space through the inner gear ring and rotate around its own rotating axis at the same time.

[0009] A central stirring paddle extending radially outward is arranged in the middle of the central rotating rod, and an inner stirring paddle extending radially inward is arranged in the inner cylinder. The central stirring paddle and the inner stirring paddle are axially staggered. The upper end of the inner cylinder is fixedly connected to the inner gear ring, and the inner gear ring drives the inner cylinder to rotate around the central axis to drive the inner stirring paddle to rotate in the opposite direction relative to the central stirring paddle.

[0010] The bottom of the outer cylinder is provided with a core cylinder extending upward, the lower end of the inner cylinder is inserted into the core cylinder, the core cylinder is evenly distributed with first through holes on the circumference, the first through holes and the third through holes of the inner cylinder are arranged alternately, and the liquid raw material is subjected to shearing action in the process of flowing through the first through holes and the third through holes.

[0011] Furthermore, the external stirring paddles arranged in the annular space are arranged at different heights of the annular space, and are configured to rotate circumferentially at different heights along the annular space and around their own external rotating rods to stir the liquid raw materials at different heights of the annular space.

[0012] Furthermore, the inner surface of the bottom of the inner cylinder is fitted with the outer surface of the core cylinder, the inner surface of the bottom of the inner cylinder is circumferentially evenly provided with inner grinding parts, and the outer surface of the bottom of the core cylinder is circumferentially evenly provided with outer grinding parts, the inner grinding parts and the outer grinding parts are tightly matched, and are configured to grind the liquid raw material flowing between the inner grinding parts and the outer grinding parts.

[0013] In order to achieve the above object, in a second aspect, the present invention provides a process for producing high-stability yogurt, using the device for producing high-stability yogurt, comprising:

[0014] Put the liquid raw materials required for yogurt production into the outer cylinder according to the set ratio, snap the cylinder cover onto the upper opening of the outer cylinder, extend the central stirrer into the central space, and extend the external stirrer into the annular space;

[0015] The driving motor is turned on to drive the central agitator to rotate in the central space to stir the liquid raw material in the inner space, and the plurality of external agitators are driven to rotate along the annular space and around their respective external rotating rods through gear meshing to stir the liquid raw material in the outer space;

[0016] During the stirring process, the impeller at the bottom of the external stirrer drives the liquid raw material in the central space to flow from the top to the bottom, drives the liquid raw material in the central space into the annular space through the first through hole and the third through hole, and the liquid raw material in the annular space returns to the inner cylinder through the second through hole, forming a circulating flow;

[0017] Furthermore, during the circulation of the liquid raw material, the inner gear ring drives the inner cylinder to rotate circumferentially, and the liquid raw material is sheared while flowing through the first through hole and the third through hole, and is also ground by the inner grinding part and the outer grinding part, so that the liquid raw material is ground and refined.

[0018] The technical advantages of the device and process for producing high-stability yogurt provided by the present invention are at least reflected in:

[0019] 1. A vertically extending inner cylinder is arranged at the center of the outer cylinder containing the liquid raw materials, so that the yogurt production space is divided into a central space and an annular space connected by through holes, and a central agitator is arranged in the center for fixed-axis stirring, and an external agitator is arranged in the annular space for circumferentially moving dynamic axis stirring, so that the liquid raw materials in the entire production space are uniformly stirred in all directions, solving the problem that the edge of the production space cannot be stirred, and achieving all-round stirring;

[0020] 2. During the stirring process, the fixed-axis stirring of the central stirrer is combined with the circumferential rotation stirring of the external stirrer. An impeller is arranged at the bottom of the central stirrer to drive the liquid in the central space to flow downward, driving the liquid raw materials in the central space and the external space to flow mutually through the through holes, forming a flow cycle, so that the liquid raw materials at the edge of the production space can enter the stirring center, and the upper and lower layers of liquid raw materials can flow up and down and mix, thereby improving the uniformity of the flow of liquid raw materials during the stirring process;

[0021] 3. A single drive motor drives the central agitator and the external agitator to rotate respectively through the transmission system of the central gear, the external gear and the inner gear ring, and realizes the circumferential rotation of the external agitator in the annular space. A plurality of external agitators are provided and arranged in different height ranges, respectively, to sequentially stir the liquid raw materials in different height ranges of the annular space, thereby improving the uniformity of stirring in the circumferential space. Moreover, the circumferential rotation can also form a circumferential push on the liquid raw materials in the annular space, thereby improving the uniformity of the liquid raw materials;

[0022] 4. By connecting the inner cylinder to the bottom plate of the inner gear ring, and setting a third through hole at the bottom of the inner cylinder, setting a core cylinder rotating with the inner cylinder at the bottom of the outer cylinder, and setting a first through hole staggered with the third through hole in the core cylinder, the inner gear ring drives the inner cylinder to rotate circumferentially, forming a shearing effect on the liquid raw material flowing through the first through hole and the third through hole, effectively breaking the agglomerates in the liquid raw material, and improving the uniformity of the liquid raw material;

[0023] 5. Inner grinding parts are evenly distributed on the circumferential surface of the bottom of the inner cylinder, and outer grinding parts are evenly distributed on the outer surface of the core cylinder. When the inner cylinder rotates relative to the core cylinder and when the liquid raw material flows through the first through hole and the second through hole, the inner grinding parts and the outer grinding parts rotate relative to each other to crush and grind the agglomerated materials, further eliminate the agglomerated materials, and improve the uniformity of the finished yogurt product. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0025] Figure 1 It is a three-dimensional structural schematic diagram of an embodiment of a device for producing high-stability yogurt provided;

[0026] Figure 2 It is a schematic diagram of the internal structure of the device;

[0027] Figure 3 yes Figure 2 A local enlarged view of point A;

[0028] Figure 4It is the meshing principle diagram of the central gear, external gear and inner ring gear;

[0029] Figure 5 It is a schematic diagram of the structure of the outer cylinder with part of the outer shell removed;

[0030] Figure 6 It is a schematic diagram of the structure in which the inner gear ring is connected to the inner cylinder with part of the shell removed;

[0031] Figure 7 It is a schematic diagram of the structure of the connection between the central gear and the central agitator;

[0032] Figure 8 It is a schematic diagram of the structure in which the central agitator is installed in the inner drum;

[0033] Fig. 9 It is a schematic diagram of the structure in which the external gear is connected to the external agitator;

[0034] Fig.10 It is a schematic diagram of the structure of the annulus between the outer cylinder and the inner cylinder of the external agitator;

[0035] Fig.11 The invention provides a flowchart of a process for producing high-stability yogurt.

[0036] Description of the accompanying drawings:

[0037] 1-outer cylinder, 11-core cylinder, 12-first through hole, 13-outer grinding part;

[0038] 2-inner cylinder, 21-second through hole, 22-third through hole, 23-inner stirring paddle, 24-inner grinding part;

[0039] 3—Cylinder cover;

[0040] 4-Center gear;

[0041] 5- External gear;

[0042] 6-inner gear ring, 61-bottom plate;

[0043] 7-central agitator, 71-central stirring paddle, 72-impeller;

[0044] 8-external agitator, 81-external stirring paddle;

[0045] 9- Driving motor.

[0046] It should be understood that the size of each part shown in the accompanying drawings is not drawn according to the actual proportional relationship. In addition, the same or similar reference numerals represent the same or similar components. DETAILED DESCRIPTION

[0047] Most of the existing yogurt processing and stirring devices adopt a single stirrer arranged at the center of the overall space, which makes it difficult to stir the liquid raw materials in the large production space in all directions. During the stirring process, the liquid raw materials on the periphery of the production space cannot enter the stirring center, resulting in long-term existence at the edge position to form a stirring dead corner; and the liquid raw materials in the upper and lower layers of the production space are difficult to form an upward and downward flow and mixing, resulting in uneven stirring of the upper and lower layers; in addition, yogurt is produced by mixing and processing a variety of raw materials, and it is easy to form agglomerates during the stirring process. It is difficult to effectively refine and decompose the agglomerates by stirring with only a stirrer, resulting in poor stability of the produced yogurt.

[0048] To this end, the present invention provides a device for producing high-stability yogurt, wherein the inner cylinder divides the outer cylinder into a central space and an annular space, a central agitator is arranged in the central space, an external agitator is arranged in the annular space, a driving motor is connected to the central agitator and the external agitator, the central agitator is driven to rotate around the central rotating rod, and the external agitator is driven to rotate around the external rotating rod and move circumferentially along the annular space. During the stirring process, the liquid raw materials at the edge of the production space are driven to enter the stirring center, and the upper and lower layers of liquid raw materials flow up and down to mix, so as to achieve all-round stirring of the liquid raw materials in the production space, so that the liquid raw materials are stirred evenly and refined and decomposed, effectively improving the stability of the yogurt product, and improving the appearance and drinking taste of the yogurt product.

[0049] Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. The description of the exemplary embodiments is merely illustrative and is in no way intended to limit the present disclosure and its application or use. The present disclosure can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided to make the present disclosure thorough and complete and to fully express the scope of the present disclosure to those skilled in the art. It should be noted that unless otherwise specifically stated, the relative arrangement of the parts and steps and the composition of the materials set forth in these embodiments should be interpreted as being merely exemplary and not as limiting.

[0050] Embodiment 1:

[0051] like Figure 1 , Figure 2 and Fig.10As shown, a device for producing high-stability yogurt, the outer cylinder 1 is provided with an upper opening; the inner cylinder 2 is movably arranged in the outer cylinder 1 and the lower end extends to the bottom of the outer cylinder 1, dividing the outer cylinder 1 into a central space and an annular space, and the cylinder wall of the inner cylinder 2 is provided with a through hole connecting the central space and the annular space; the cylinder cover 3 is buckled on the upper opening of the outer cylinder 1; the central agitator 7 is connected to the center of the bottom of the cylinder cover 3 through a central rotating rod, and the lower end extends into the central space; the external agitator 8 is connected to the outer side of the bottom center of the cylinder cover 3 through an external rotating rod, and the lower end extends into the annular space; the driving motor 9 is arranged on the top of the cylinder cover 3, and is drivingly connected to the central agitator 7 and the external agitator 8, and is configured to drive the central agitator 7 to rotate around the central rotating rod, and at the same time drive the external agitator 8 to rotate around the external rotating rod and move circumferentially along the annular space.

[0052] The driving motor 9 drives the central agitator 7 to rotate in the central space to stir the liquid raw material in the internal space, and drives multiple external agitators 8 to rotate along the annular space and around their respective external rotating rods through gear meshing to stir the liquid raw material in the external space.

[0053] Based on the first embodiment, a device for producing high-stability yogurt is provided, in which a vertically extending inner cylinder 2 is arranged at the central position inside an outer cylinder 1 for holding liquid raw materials, so that the yogurt production space is divided into a central space and an annular space connected by through holes, and a central agitator 7 is arranged in the middle of the center to perform fixed-axis stirring, and an external agitator 8 is arranged in the annular space to perform circumferentially moving dynamic axis stirring, so that the liquid raw materials in the entire production space are uniformly stirred in all directions, which solves the problem that the edge positions of the production space cannot be stirred, and all-round stirring is achieved. During the stirring process, the liquid raw materials at the edge positions of the production space are driven into the stirring center, and the upper and lower layers of liquid raw materials flow up and down and mix, so as to achieve all-round stirring of the liquid raw materials in the production space, so that the liquid raw materials are stirred evenly and finely decomposed, and the stability of the yogurt product is effectively improved.

[0054] Embodiment 2:

[0055] like Figure 1 , Figure 2 , Figure 4 , Figure 7 and Fig. 9As shown, the structure of the production device is optimized on the basis of the first embodiment. In a preferred embodiment, the cylinder cover 3 is provided with a central gear 4 and an external gear 5 meshing with each other, the central gear 4 is connected to the upper end of the central rotating rod, the external gear 5 is connected to the external rotating rod, and the driving motor 9 is connected to the central gear 4 to drive the central agitator 7 and the external agitator 8 to rotate. The cylinder cover 3 is also provided with an inner gear ring 6 coaxially arranged with the central gear 4 and freely rotatable, the external gear 5 is arranged in the annular space between the central gear 4 and the inner gear ring 6, one side of the gear teeth of the external gear 5 meshes with the central gear 4, and the other side of the gear teeth meshes with the inner gear ring 6, the bottom plate 61 of the inner gear ring 6 is located on the outer circumference of the central through hole and is uniformly distributed with external through holes, the upper end of the central rotating rod passes through the central through hole and is connected to the central gear 4, and the upper end of the external rotating rod passes through the external through hole and is connected to the external gear 5, so as to drive each external agitator 8 to rotate along the circumferential direction of the annular space through the inner gear ring 6 while rotating around their respective rotating axes.

[0056] A plurality of external agitators 8 are evenly distributed on the inner circumference of the annular space, and a plurality of external gears 5 are meshed on the outer side of the central gear 4, and each of the external gears 5 is respectively connected to the external agitator 8. The external stirring paddles 81 arranged in the annular space are respectively arranged at different heights of the annular space, and are configured to rotate circumferentially at different heights along the annular space and rotate around their respective external rotating rods to stir the liquid raw materials at different heights of the annular space.

[0057] A vertically extending inner cylinder 2 is arranged at the central position of an outer cylinder 1 for holding liquid raw materials, so that the yogurt production space is divided into a central space and an annular space connected by through holes, and a central agitator 7 is arranged in the middle of the center to perform fixed-axis stirring, and an external agitator 8 is arranged in the annular space to perform circumferentially moving dynamic axis stirring, so that the liquid raw materials in the entire production space are uniformly stirred in all directions, which solves the problem that the edge positions of the production space cannot be stirred and realizes all-round stirring.

[0058] Based on the second embodiment, a single driving motor 9 of the yogurt production device drives the central agitator 7 and the external agitator 8 to rotate respectively through the transmission system of the central gear 4, the external gear 5 and the inner ring 6, and realizes the circumferential rotation of the external agitator 8 in the annular space. A plurality of external agitators 8 are provided and arranged in different height ranges, respectively, to stir the liquid raw materials in different height ranges of the annular space in turn, thereby improving the uniformity of stirring in the circumferential space. Moreover, the circumferential rotation of the external agitator 8 can also form a circumferential push on the liquid raw materials in the annular space, thereby improving the uniformity of the liquid raw materials.

[0059] A central stirring paddle 71 extending radially outward is provided in the middle of the central rotating rod, and an inner stirring paddle 23 extending radially inward is provided inside the inner cylinder 2. The central stirring paddle 71 and the inner stirring paddle 23 are axially staggered. The upper end of the inner cylinder 2 is fixedly connected to the inner gear ring 6, and the inner gear ring 6 drives the inner cylinder 2 to rotate around the central axis to drive the inner stirring paddle 23 to rotate in the opposite direction relative to the central stirring paddle 71.

[0060] In some embodiments, the central stirring paddle 71 , the inner stirring paddle 23 , and the outer stirring paddle are respectively a rod-shaped structure extending radially, a bar-shaped structure, or a thin sheet structure arranged in the horizontal direction.

[0061] By the forward rotation of the central stirring paddle 71 and the reverse rotation of the inner stirring paddle 23 driven by the inner cylinder 2, a relatively higher speed rotation difference between the two is achieved, thereby improving the stirring efficiency. Within the same time, the liquid raw materials in the central space can be fully stirred, and the stirring uniformity is improved. The central stirring paddle 71 and the inner stirring paddle 23, which are staggered up and down and rotate in opposite directions, have a shearing and crushing effect on the liquid raw materials, and can crush the clumping agglomerates in the liquid raw materials, thereby improving the stability of the finished yogurt product.

[0062] Embodiment three:

[0063] like Figure 2 , Figure 7 and Figure 8 As shown, an impeller 72 is provided at the bottom of the central rotating rod, second through holes 21 are evenly distributed on the top circumference of the inner cylinder 2, and third through holes 22 are evenly distributed on the bottom circumference. The driving motor 9 is configured to drive the liquid raw material in the central space to flow from the top to the bottom through the impeller 72, so as to drive the liquid raw material in the central space to enter the annular space through the third through hole 22, and the liquid raw material in the annular space returns to the inner cylinder 2 through the second through hole 21, thereby forming a flow cycle.

[0064] During the stirring process, the impeller 72 at the bottom of the external stirrer 8 drives the liquid raw material in the central space to flow from the top to the bottom, drives the liquid raw material in the central space to enter the annular space through the first through hole 12 and the third through hole 22, and the liquid raw material in the annular space returns to the inner tube 2 through the second through hole 21, forming a circulating flow;

[0065] In some embodiments, the impeller 72 is a blade structure arranged obliquely relative to the radial surface of the central rotating axis. During rotation, the liquid raw material in the central space is pushed downward by the oblique surface of the blade 72, which is similar to the principle that an air propeller drives the air to flow downward through rotation.

[0066] Based on this embodiment, an impeller 72 is arranged at the bottom of the central agitator 7 to drive the liquid in the central space to flow downward, driving the liquid raw materials in the central space and the external space to flow to each other through the through holes, forming a flow circulation, so that the liquid raw materials at the edge of the production space enter the stirring center, and the upper and lower layers of liquid raw materials flow up and down and mix, thereby improving the uniformity of the flow of the liquid raw materials during the stirring process, forming an up and down flow mixing, and improving the stirring uniformity of the upper and lower layers.

[0067] Embodiment 4:

[0068] like Figure 2 , Figure 3 , Figure 5 , Figure 6 and Figure 8 As shown, the outer cylinder 1 is provided with an upwardly extending core cylinder 11 at the bottom, the lower end of the inner cylinder 2 is plugged into the core cylinder 11, the core cylinder 11 is evenly distributed with first through holes 12 on the circumference, the first through holes 12 and the third through holes 22 of the inner cylinder 2 are arranged alternately, and the liquid raw material is subjected to shearing action in the process of flowing through the first through holes 12 and the third through holes 22.

[0069] The inner cylinder is connected to the bottom plate of the inner gear ring, and a third through hole is arranged at the bottom of the inner cylinder, a core cylinder which rotates with the inner cylinder is arranged at the bottom of the outer cylinder, and first through holes which are staggered with the third through holes are arranged on the core cylinder. The inner gear ring drives the inner cylinder to rotate circumferentially, thereby forming a shearing effect on the liquid raw material flowing through the first through hole and the third through hole, effectively breaking up the agglomerated materials in the liquid raw material, and improving the uniformity of the liquid raw material.

[0070] The inner surface of the bottom of the inner cylinder 2 is in contact with the outer surface of the core cylinder 11. The inner surface of the bottom of the inner cylinder 2 is evenly distributed with inner grinding parts 24, and the outer surface of the bottom of the core cylinder 11 is evenly distributed with outer grinding parts 13. The inner grinding parts 24 and the outer grinding parts 13 fit tightly together and are configured to grind the liquid raw material flowing between the inner grinding parts 24 and the outer grinding parts 13.

[0071] In some specific implementations, one of the outer grinding part 13 and the inner grinding part 24 is a vertical or oblique rib relative to the surface of the cylinder, and the other is a vertical or oblique groove relative to the surface of the cylinder. The thickness of the rib or groove is small and the clearance between them is matched, which can not only maintain the circulation of liquid raw materials, but also realize the rolling and grinding of the agglomerated polymer.

[0072] Inner grinding parts 24 are evenly distributed on the circumferential surface of the bottom of the inner cylinder 2, and outer grinding parts 13 are evenly distributed on the outer surface of the core cylinder 11. The inner gear ring 6 drives the inner cylinder 2 to rotate circumferentially. During the flow of liquid raw materials through the first through hole 12 and the third through hole 22, the inner cylinder rotates relative to the core cylinder, and the inner grinding parts 24 and the outer grinding parts 13 rotate relative to each other, thereby crushing and grinding the lumpy agglomerates to further eliminate the lumpy agglomerates and improve the uniformity of the finished yogurt.

[0073] Through the above process, the liquid raw material is subjected to shearing action while flowing through the first through hole 12 and the third through hole 22, and is simultaneously subjected to grinding action by the inner grinding part 24 and the outer grinding part 13, so that the liquid raw material is ground and refined.

[0074] Embodiment five:

[0075] like Fig.11 As shown, based on the apparatus for producing high-stability yogurt provided in Examples 1 to 4, this embodiment provides a process for producing high-stability yogurt, comprising the steps of:

[0076] S100. The liquid raw materials required for yogurt production are put into the outer cylinder 1 according to the set ratio, the cylinder cover 3 is buckled into the upper opening of the outer cylinder 1, the central agitator 7 extends into the central space, and the external agitator 8 extends into the annular space;

[0077] S200. Turn on the drive motor 9, drive the central agitator 7 to rotate in the central space to stir the liquid raw material in the internal space, and drive multiple external agitators 8 to rotate along the annular space and rotate around their respective external rotating rods through gear meshing to stir the liquid raw material in the external space;

[0078] S300. During the stirring process, the impeller 72 at the bottom of the external agitator 8 drives the liquid raw material in the central space to flow from the top to the bottom, drives the liquid raw material in the central space into the annular space through the first through hole 12 and the third through hole 22, and the liquid raw material in the annular space returns to the inner tube 2 through the second through hole 21, forming a circulating flow;

[0079] S400. During the circulation of the liquid raw material, the inner gear ring 6 drives the inner cylinder 2 to rotate circumferentially. The liquid raw material is sheared while flowing through the first through hole 12 and the third through hole 22, and is also ground by the inner grinding part 24 and the outer grinding part 13, so that the liquid raw material is ground and refined.

[0080] Based on the provided process for producing high-stability yogurt, during the stirring process, the liquid raw materials at the edge of the production space are driven into the stirring center, and the upper and lower layers of liquid raw materials flow up and down and mix, so as to achieve all-round stirring of the liquid raw materials in the production space, and a shearing effect is formed on the liquid raw materials flowing through the first through hole 12 and the third through hole 22, so as to effectively break up the lumps of agglomerates in the liquid raw materials and improve the uniformity of the liquid raw materials. The liquid raw materials are ground and refined by the grinding action of the inner grinding part 24 and the outer grinding part 13, so that the liquid raw materials are stirred evenly and refined and decomposed, thereby effectively improving the stability of the yogurt product.

[0081] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein, but these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A device for producing high-stability yogurt, characterized in that: include: An outer cylinder (1) is provided with an upper opening; The inner cylinder (2) is movably arranged in the outer cylinder (1) and has a lower end extending to the bottom of the outer cylinder (1), dividing the outer cylinder (1) into a central space and an annular space. The cylinder wall of the inner cylinder (2) is provided with a through hole connecting the central space and the annular space. A cylinder cover (3) is buckled on the upper opening of the outer cylinder (1); A central agitator (7) is connected to the center of the bottom of the cylinder cover (3) via a central rotating rod, and the lower end thereof extends into the central space; An external agitator (8) is connected to the outer side of the bottom center of the cylinder cover (3) through an external rotating rod, and the lower end thereof extends into the annular space; and A driving motor (9) is arranged on the top of the cylinder cover (3), is connected to the central agitator (7) and the external agitator (8), and is configured to drive the central agitator (7) to rotate around the central rotating rod, and at the same time drive the external agitator (8) to rotate around the external rotating rod and move circumferentially along the annular space; The cylinder cover (3) is provided with a central gear (4) and an external gear (5) meshing with each other, the central gear (4) is connected to the upper end of the central rotating rod, the external gear (5) is connected to the external rotating rod, and the driving motor (9) is drivingly connected to the central gear (4) to drive the central agitator (7) and the external agitator (8) to rotate; a plurality of external agitators (8) are evenly distributed on the circumference of the annular space, a plurality of external gears (5) are meshed with the outside of the central gear (4), and each of the external gears (5) is drivingly connected to the external agitator (8) respectively; An impeller (72) is provided at the bottom of the central rotating rod, second through holes (21) are evenly distributed on the top circumference of the inner cylinder (2), and third through holes (22) are evenly distributed on the bottom circumference, and the driving motor (9) is configured to drive the liquid raw material in the central space to flow from the top to the bottom through the impeller (72), so as to drive the liquid raw material in the central space to enter the annular space through the third through hole (22), and the liquid raw material in the annular space returns to the inner cylinder (2) through the second through hole (21), thereby forming a flow cycle; The cylinder cover (3) is also provided with an inner gear ring (6) which is coaxially arranged with the central gear (4) and can rotate freely. The outer gear (5) is arranged in the annular space between the central gear (4) and the inner gear ring (6). The gear teeth on one side of the outer gear (5) mesh with the central gear (4), and the gear teeth on the other side mesh with the inner gear ring (6). The bottom plate (61) of the inner gear ring (6) is located on the outer circumference of the central through hole and is evenly distributed with external through holes. The upper end of the central rotating rod passes through the central through hole and is connected to the central gear (4). The upper end of the external rotating rod passes through the external through hole and is connected to the external gear (5), so as to drive each external agitator (8) to rotate along the circumference of the annular space through the inner gear ring (6) and rotate around its own rotation axis at the same time. A central stirring paddle (71) extending radially outward in a radial manner is arranged in the middle of the central rotating rod, and an inner stirring paddle (23) extending radially inward in a radial manner is arranged inside the inner cylinder (2). The central stirring paddle (71) and the inner stirring paddle (23) are axially staggered. The upper end of the inner cylinder (2) is fixedly connected to the inner gear ring (6). The inner gear ring (6) drives the inner cylinder (2) to rotate around the central axis, so as to drive the inner stirring paddle (23) to rotate in the opposite direction relative to the central stirring paddle (71). The outer cylinder (1) is provided with a core cylinder (11) extending upward at the bottom, the lower end of the inner cylinder (2) is inserted into and matched with the core cylinder (11), the core cylinder (11) is evenly distributed with first through holes (12) on the circumference, the first through holes (12) and the third through holes (22) of the inner cylinder (2) are arranged in an alternating manner, and the liquid raw material is subjected to shearing action in the process of flowing through the first through holes (12) and the third through holes (22).

2. The device for producing high-stability yogurt according to claim 1, characterized in that: The external stirring paddles (81) arranged in the annular space are arranged at different heights of the annular space, and are configured to rotate circumferentially along different heights of the annular space and around their own external rotating rods to stir the liquid raw materials at different heights of the annular space.

3. The device for producing high-stability yogurt according to claim 1, characterized in that: The inner surface of the bottom of the inner cylinder (2) is in contact with the outer surface of the core cylinder (11); the inner surface of the bottom of the inner cylinder (2) is evenly distributed with an inner grinding portion (24); the outer surface of the bottom of the core cylinder (11) is evenly distributed with an outer grinding portion (13); the inner grinding portion (24) and the outer grinding portion (13) are tightly matched and are configured to grind liquid raw materials flowing between the inner grinding portion (24) and the outer grinding portion (13).

4. A process for producing high-stability yogurt, using the device for producing high-stability yogurt according to any one of claims 1 to 3, characterized in that: include: Liquid raw materials required for yogurt production are put into the outer cylinder (1) according to a set ratio, the cylinder cover (3) is buckled onto the upper opening of the outer cylinder (1), the central stirrer (7) is extended into the central space, and the external stirrer (8) is extended into the annular space; Turning on the driving motor (9) drives the central stirrer (7) to rotate in the central space to stir the liquid raw material in the inner space, and drives the plurality of external stirrers (8) to rotate along the annular space and around their respective external rotating rods through gear meshing to stir the liquid raw material in the outer space; During the stirring process, the impeller (72) at the bottom of the external stirrer (8) drives the liquid raw material in the central space to flow from the top to the bottom, and drives the liquid raw material in the central space to enter the annular space through the first through hole (12) and the third through hole (22). The liquid raw material in the annular space returns to the inner tube (2) through the second through hole (21), forming a circulating flow.

5. The process for producing high-stability yogurt according to claim 4, characterized in that: During the circulation of the liquid raw material, the inner gear ring (6) drives the inner cylinder (2) to rotate in a circumferential direction. The liquid raw material is sheared while flowing through the first through hole (12) and the third through hole (22). At the same time, it is ground by the outer grinding part (13) and the inner grinding part (24), thereby grinding and refining the liquid raw material.

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