CN219792925U - Yeast concentration purification subassembly and yeast concentration purification device - Google Patents

Abstract

The utility model provides a yeast concentration and purification assembly and a yeast concentration and purification device. The centrifugal separation structure comprises a cavity and a centrifugal separation piece connected in the cavity; the cavity is provided with a discharge hole; the centrifugal separation piece is rotatably connected in the cavity and comprises a first overflow port, a second overflow port and a groove part for containing materials; the first overflow port and the second overflow port are higher than the bottom of the groove part, the first overflow port is arranged at a position close to the rotation center of the centrifugal separation piece, the second overflow port is arranged at a position far away from the rotation center of the centrifugal separation piece, and the second overflow port is communicated with the discharge port; the material injection structure extends into the centrifugal separation structure and is used for injecting materials into the centrifugal separation structure. The yeast concentration and purification assembly has the advantages of continuous discharge, small material loss and the like. The yeast concentrating and purifying device comprises the yeast concentrating and purifying component.

Description

Yeast concentration purification subassembly and yeast concentration purification device

Technical Field

The utility model belongs to the technical field of concentration and purification equipment, and particularly relates to a yeast concentration and purification assembly and a yeast concentration and purification device.

Background

After the saccharomycetes are subjected to propagation culture, the concentration and purification process is needed to reduce the water content in the saccharomycetes emulsion and improve the concentration of the saccharomycetes. The concentration and purification process of the yeast emulsion is usually carried out by adopting a disc type centrifuge.

The disk centrifuge is one of vertical centrifuges, and the rotary drum is mounted on the upper end of vertical shaft and driven by motor to rotate at high speed via transmission mechanism. The drum has a set of discs nested within one another. A small gap is left between discs. The suspension (or emulsion) is fed into the drum through a feed tube located in the center of the drum. As the suspension/emulsion flows through the gaps between the discs, the solid particles/droplets settle onto the discs under the action of the centrifuge to form a sediment/liquid layer. The sediment slides along the surface of the disc to separate from the disc and accumulate at the position with the largest diameter in the rotary drum, and the separated liquid is discharged out of the rotary drum from the liquid outlet. The function of the disc is to shorten the settling distance of solid particles/liquid drops, enlarge the settling area of the rotary drum, and greatly improve the production capacity of the separator due to the disc. The solid particles/liquid drops accumulated in the rotary drum are discharged from the rotary drum through a slag discharging mechanism. When the disc type centrifugal machine discharges solid particles/liquid drops and other materials, the materials are required to be deposited to a certain thickness, and then the materials are discharged in a jet shape, so that the discharge is discontinuous, and the materials are easy to splash and have larger material loss.

Disclosure of Invention

The embodiment of the utility model aims to provide a yeast concentration and purification assembly and a yeast concentration and purification device, which are used for solving the technical problems of slow drying and poor drying effect of materials on the upper layer of a fluidized layer in the prior art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

there is provided a yeast concentrate purification assembly comprising:

the centrifugal separation structure comprises a cavity and a centrifugal separation piece connected in the cavity; the cavity is provided with a discharge hole; the centrifugal separation piece is rotatably connected in the cavity and comprises a first overflow port, a second overflow port and a groove part for containing materials; the first overflow port and the second overflow port are both higher than the bottom of the groove part, the first overflow port is arranged at a position close to the rotation center of the centrifugal separation piece, the second overflow port is arranged at a position far away from the rotation center of the centrifugal separation piece, and the second overflow port is communicated with the discharge port;

and the material injection structure extends into the centrifugal separation structure and is used for injecting materials into the centrifugal separation structure.

As a further improvement of the above technical scheme:

optionally, the second overflow port is located higher than the first overflow port in the height direction of the centrifugal separator.

Optionally, the number of the centrifugal separation structures is plural, and each centrifugal separation structure is sequentially arranged along the height direction of the yeast concentration and purification assembly.

Optionally, each centrifugal separation piece is provided with an overflow pipe part, each overflow pipe part is connected in a plugging manner in sequence, and the first end of each overflow pipe part is a first overflow port of the corresponding centrifugal separation piece; the second end of each of the overflow pipe sections extends into the first end of an adjacent one of the centrifugal separation elements.

Optionally, the centrifugal separation member is a disc-shaped centrifugal separation member, and the diameter of each disc-shaped centrifugal separation member is sequentially increased from top to bottom.

Optionally, the centrifugal separation piece includes the first drain inclined plane section and the second drain inclined plane section that distribute in recess portion both sides, first overflow mouth is located the tip of first drain inclined plane section, the second overflow mouth is located the tip of second drain inclined plane section, the inclination of first drain inclined plane section is less than the inclination of second drain inclined plane section.

Optionally, the material injecting structure comprises a material injecting pipe, a first end of the material injecting pipe extends into the centrifugal separation structure, and a second end of the material injecting pipe is connected with a material source.

Optionally, the overflow pipe portion of each centrifugal separation piece is inserted into the injection pipe in sequence, and the injection pipe is in driving connection with each centrifugal separation piece.

Optionally, the groove part of the centrifugal separation piece is further provided with a plurality of protrusions.

The utility model also provides a yeast concentration and purification device which comprises the yeast concentration and purification assembly.

The yeast concentration and purification assembly and the yeast concentration and purification device provided by the utility model have the beneficial effects that:

a yeast concentrating and purifying component comprises a centrifugal separation structure and a material injection structure. The centrifugal separation structure comprises a cavity and a centrifugal separation piece connected in the cavity; the cavity is provided with a discharge hole; the centrifugal separation piece is rotatably connected in the cavity and comprises a first overflow port, a second overflow port and a groove part for containing materials; the first overflow port and the second overflow port are higher than the bottom of the groove part, the first overflow port is arranged at a position close to the rotation center of the centrifugal separation piece, the second overflow port is arranged at a position far away from the rotation center of the centrifugal separation piece, and the second overflow port is communicated with the discharge port; the material injection structure extends into the centrifugal separation structure and is used for injecting materials into the centrifugal separation structure.

The cavity is a working cavity of the yeast concentration and purification assembly, and the centrifugal separation piece is wrapped in a cavity of the cavity by the cavity, so that materials are prevented from splashing out of the yeast concentration and purification assembly. The centrifugal separation piece is a component for carrying out centrifugal separation on materials (such as yeast liquid), the materials in the groove part are driven to form vortexes through the rotation of the centrifugal separation piece, and the materials are separated under the centrifugal separation action of the vortexes to realize the separation of materials with different specific gravities. After the vortex is formed, a substance having a high specific gravity (e.g. a mass of yeast) will deposit on the inner wall of the centrifugal separator. The mass gradually increases along with the accumulation of the substances with large specific gravity, and the accumulated substances with large specific gravity are gradually thrown out towards the edge of the centrifugal separation piece, namely the second overflow port while the centrifugal separation piece rotates. Substances with small specific gravity (such as water or culture medium liquid) can move towards the center of the vortex, and when the liquid level of the substances with small specific gravity is higher than that of the first overflow port, the substances with small specific gravity overflow from the first overflow port and the centrifugal separation piece, so that centrifugal separation of the materials is realized. The centrifugal separation member may be in particular bowl-shaped, disc-shaped, cylindrical or the like. The discharge port is positioned at the bottom of the cavity. When the substances with large specific gravity are thrown out from the second overflow port, the substances with large specific gravity flow to the discharge port and are discharged out of the yeast concentration and purification assembly through the discharge port.

Compared with the traditional disc type centrifugal machine, the yeast concentration and purification assembly does not need to intermittently discharge materials, and concentrated and purified materials can be continuously obtained as long as continuous material injection of a material injection structure and continuous rotation of a centrifugal separation piece are maintained. The yeast concentration and purification assembly has the advantages of continuous discharge, uneasy splashing of materials, small material loss and the like.

The utility model also provides a yeast concentration and purification device which comprises the yeast concentration and purification assembly. The yeast concentration and purification apparatus of the present utility model has the yeast concentration and purification unit of the above-described embodiment, and therefore has the advantage of the yeast concentration and purification unit of the above-described embodiment.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments or the description of the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic cross-sectional structural view of a yeast concentrate purification assembly provided by the present utility model;

FIG. 2 is a schematic view of a partial enlarged structure in FIG. 1;

FIG. 3 is a schematic diagram of a resolution structure of the yeast concentrating and purifying assembly provided by the utility model;

FIG. 4 is a schematic perspective cross-sectional view of a yeast concentrate purification assembly according to the present utility model;

FIG. 5 is a schematic top view of a centrifugal separator of the yeast concentrate purification assembly of the present utility model;

FIG. 6 is a schematic view of a partial enlarged structure of FIG. 5;

FIG. 7 is a schematic perspective view of a centrifugal separator of the yeast concentrate purification assembly of the present utility model;

FIG. 8 is a schematic cross-sectional view of a centrifugal separator of the yeast concentrate purification assembly provided by the present utility model;

FIG. 9 is a schematic view of a partially enlarged structure of an overflow pipe portion of the yeast concentrate and purify module according to the present utility model;

fig. 10 is a schematic perspective view of a material injection pipe of the yeast concentration and purification assembly provided by the utility model.

Wherein, each reference sign in the figure:

1. a cavity; 11. a discharge port;

2. a centrifugal separator; 21. a first overflow port;

22. a second overflow port; 23. a groove portion;

231. a first liquid guiding inclined surface section; 232. a second liquid guiding inclined surface section;

24. a liquid overflow pipe part; 25. a protrusion;

3. a material injection pipe; 31. an impeller.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are merely for convenience in describing and simplifying the description based on the orientation or positional relationship shown in the drawings, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

Yeast is one of the most successful microorganisms used by humans in the earliest and cooperative fields, and is widely used in the fields of food fermentation, pharmacy, cosmetics, fertilizers, feeds and the like. When the disc type centrifugal machine is used for concentrating and purifying yeast liquid, the problems of discontinuous yeast liquid discharge, splashed yeast liquid, large consumption of yeast liquid and the like are easily caused due to the discharge characteristic of the disc type centrifugal machine.

As shown in FIG. 1, the utility model provides a yeast concentrate purification assembly comprising a centrifugal separation structure and a material injection structure. The centrifugal separation structure comprises a cavity 1 and a centrifugal separation piece 2 connected in the cavity 1; the cavity 1 is provided with a discharge hole 11; the centrifugal separation part 2 is rotatably connected in the cavity 1, and the centrifugal separation part 2 comprises a first overflow port 21, a second overflow port 22 and a groove part 23 for containing materials; the first overflow port 21 and the second overflow port 22 are both positioned higher than the bottom of the groove portion 23, the first overflow port 21 is arranged at a position close to the rotation center of the centrifugal separator 2, the second overflow port 22 is arranged at a position far from the rotation center of the centrifugal separator 2, and the second overflow port 22 is communicated with the discharge port 11; the material injection structure extends into the centrifugal separation structure and is used for injecting materials into the centrifugal separation structure.

Wherein, cavity 1 is the work cavity of the concentrated purification subassembly of yeast, and cavity 1 wraps up centrifugal separation spare 2 in the cavity of cavity 1, prevents that the material from splashing the concentrated purification subassembly of yeast.

The centrifugal separator 2 is a member for centrifugally separating a material (for example, yeast liquid), and the material in the groove portion 23 is driven to form a vortex by rotation of the centrifugal separator 2, so that the material is separated into substances with different specific gravities under the centrifugal separation action of the vortex. After the formation of the vortex, substances of high specific gravity, such as for example a mass of yeast, will deposit on the inner wall of the centrifugal separator 2. As the mass increases gradually as the mass of the mass is deposited, the deposited mass is thrown out gradually towards the edge of the centrifuge 2, i.e. the second overflow port 22, while the centrifuge 2 rotates. Substances with a small specific gravity (such as water or culture medium liquid) move toward the center of the vortex, and when the liquid level of the substances with a small specific gravity is higher than that of the first overflow port 21, the substances with a small specific gravity overflow from the first overflow port 21 to the centrifugal separator 2, thereby realizing centrifugal separation of the materials. The centrifugal separator 2 may be in particular bowl-shaped, disc-shaped, cylindrical or the like.

The discharge port 11 is positioned at the bottom of the cavity 1. When the heavy substances are thrown out from the second overflow port 22, the heavy substances flow to the discharge port 11 and are discharged out of the yeast concentration and purification assembly through the discharge port 11.

When in use, the material injection structure injects the yeast stock solution into the centrifugal separation structure, specifically, injects the yeast stock solution into the groove part 23 of the centrifugal separation piece 2; the rotation of the centrifugal separation piece 2 drives the yeast stock solution to generate a vortex, and the yeast mass flocks in the yeast stock solution are gradually deposited on the inner wall of the centrifugal separation piece 2 under the action of a centrifugal force field of the vortex, gradually migrate to a place far away from the center of the vortex along with the accumulation of the yeast mass flocks, are finally thrown out of the centrifugal separation piece 2, and are discharged out of the yeast concentration and purification assembly after passing through the discharge hole 11; under the action of the centrifugal force field of the vortex, the water or the culture medium liquid in the yeast stock solution gradually moves towards the center of the vortex, and when the liquid level of the water or the culture medium liquid is higher than that of the first overflow port 21, the water or the culture medium liquid overflows from the first overflow port 21 to the centrifugal separation piece 2 and is recycled. After the centrifugal separation effect of the centrifugal separation structure, a yeast cluster material with higher yeast content can be obtained at the discharge port 11, and water or culture medium liquid with lower yeast content can be obtained at the first overflow port 21, so that the concentration and purification of the yeast stock solution are realized.

Compared with the traditional disc type centrifugal machine, the yeast concentration and purification assembly does not need to intermittently discharge materials, and concentrated and purified materials can be continuously obtained as long as continuous material injection of a material injection structure and continuous rotation of the centrifugal separation piece 2 are maintained. The yeast concentration and purification assembly has the advantages of continuous discharge, uneasy splashing of materials, small material loss and the like.

In one embodiment of the utility model, as shown in fig. 1, the second overflow port 22 is located higher than the first overflow port 21 in the height direction of the centrifugal separator 2.

In order to prevent the inclusion of excessive low specific gravity material in the high specific gravity material, the second overflow port 22 is raised to a position higher than the first overflow port 21, and when the high specific gravity material is accumulated to a sufficient mass and migrates toward the second overflow port 22, the low specific gravity material is pulled back into the groove portion 23 by the influence of the swirling centrifugal force and gravity, so that the inclusion of the low specific gravity material is reduced and the discharge of the low specific gravity material is reduced, thereby increasing the concentration of the high specific gravity material at the second overflow port 22. The difference in height between the position of the second overflow port 22 and the position of the first overflow port 21 should not be less than 5cm, and the difference in height should also increase with increasing rotational speed of the centrifugal separator 2.

In one embodiment of the present utility model, as shown in fig. 1, 3 and 4, the number of centrifugal separation structures is plural, and each centrifugal separation structure is arranged in sequence in the height direction of the yeast concentrate and purification module.

When the quantity of the centrifugal separation structures is multiple, after the materials are centrifugally separated through the first centrifugal separation structure positioned above, the materials flow into the second centrifugal separation structure positioned in the middle through the discharge port 11 of the first centrifugal separation structure, after being centrifugally separated through the second centrifugal separation structure, the materials flow into the third centrifugal separation structure positioned below through the discharge port 11 of the second centrifugal separation structure, and after being centrifugally separated through the third centrifugal separation structure, the materials are finally discharged out of the yeast concentration and purification assembly through the discharge port 11 of the third centrifugal separation structure. After the step-by-step centrifugal separation of each centrifugal separation structure, the centrifugal separation times of the materials can be increased, and the centrifugal separation path of the materials can be prolonged, so that the concentration of discharged materials is further improved.

As shown in fig. 1, 2 and 8, in one embodiment of the present utility model, each centrifugal separator 2 is provided with an overflow pipe portion 24, each overflow pipe portion 24 is connected in a plug-in manner in sequence, and a first end of each overflow pipe portion 24 is a first overflow port 21 of the corresponding centrifugal separator 2; the second end of each overflow pipe portion 24 extends into the first end of an adjacent centrifugal separator 2.

Wherein the overflow pipe portion 24 is a portion for guiding the substances of small specific gravity in the first overflow port 21 to be discharged out of the centrifugal separator 2, and the overflow pipe portion 24 also serves to support each centrifugal separator 2 so that each centrifugal separator 2 maintains an axial distance/axial position. The first end of the overflow pipe section 24 is in particular an upper end in the height direction/axial direction of the overflow pipe section 24, and the second end of the overflow pipe section 24 is in particular a lower end in the height direction/axial direction of the overflow pipe section 24. The first overflow port 21 is arranged at the first end of the overflow pipe part 24, and the substances with small specific gravity flow into the overflow pipe part 24 through the first overflow port 21; the low specific gravity material flows from the first end of the overflow portion 24 to the second end of the overflow portion 24. The second ends of the overflow pipe portions 24 extend into the first ends of the adjacent centrifugal separation members 2, so that the overflow pipe portions 24 are communicated with each other, and the second ends of the overflow pipe portions 24 located above are located lower than the first ends of the overflow pipe portions 24 located below, so that the substances with small specific gravity can be prevented from flowing back into the centrifugal separation members 2 located below, and the concentration of the materials in the adjacent centrifugal separation members 2 can be prevented from being diluted. Specifically, the overflow pipe portion 24 and the centrifugal separator 2 may be of an integral structure, or as shown in fig. 3 and 4, the overflow pipe portion 24 and the centrifugal separator 2 may be of a separate structure.

In one embodiment of the present utility model, as shown in fig. 5 to 8, the centrifugal separation member 2 is a disc-shaped centrifugal separation member, and the diameter of each disc-shaped centrifugal separation member is sequentially increased from top to bottom.

The concentration of the material is increased step by step after the material is concentrated and purified step by a plurality of centrifugal separation pieces 2. When the centrifugal separation of the materials with higher concentration is needed, the diameter of the disc-shaped centrifugal separation piece is also required to be increased step by step, and the migration path of the large-specific gravity substances is increased along with the increase of the diameter of the disc-shaped centrifugal separation piece, so that the distance between the large-specific gravity substances and the small-specific gravity substances is increased, and the concentration of the large-specific gravity substances is further improved, so that the device is suitable for the concentration and purification of the materials with higher concentration.

As shown in fig. 1 and 8, in one embodiment of the present utility model, the centrifugal separator 2 includes a first liquid guiding inclined surface section 231 and a second liquid guiding inclined surface section 232 distributed at both sides of the recess portion 23, the first overflow port 21 is located at an end of the first liquid guiding inclined surface section 231, the second overflow port 22 is located at an end of the second liquid guiding inclined surface section 232, and an inclination angle of the first liquid guiding inclined surface section 231 is smaller than an inclination angle of the second liquid guiding inclined surface section 232.

Under the action of the centrifugal force field of the vortex, the substances with large specific gravity are accumulated on the inner wall of the groove part 23, and the mass is increased along with the continuous accumulation of the substances with large specific gravity, so that the substances with large specific gravity can climb to the second overflow port 22 along the second liquid guide inclined surface section 232; the low specific gravity material ascends along the first liquid guiding slope section 231 to the first overflow port 21 while moving toward the center of the vortex. By increasing the inclination angle of the second liquid guiding inclined surface section 232, the inclination angle of the second liquid guiding inclined surface section 232 is larger than that of the first liquid guiding inclined surface section 231, the climbing difficulty of the substances with large specific gravity can be increased, and the substances with large specific gravity can only climb to the second overflow port 22 along the second liquid guiding inclined surface section 232 when the substances with large specific gravity need to be accumulated to be large enough. Meanwhile, because more substances with large specific gravity are piled up, the pressure between the substances with large specific gravity is higher, and the substances with small specific gravity which are mixed between the substances with large specific gravity can be extruded, so that the concentration of the substances with large specific gravity can be further improved.

As shown in fig. 1 and 10, in one embodiment of the present utility model, the injection structure comprises an injection pipe 3, a first end of the injection pipe 3 extending into the centrifugal separation structure, a second end of the pipe being connected to a source of material, the material being capable of being transported along a lumen of the injection pipe 3 into the centrifugal separation structure.

As shown in fig. 1 and 10, in one embodiment of the present utility model, the first end of the filler tube 3 is further provided with an impeller 31. Wherein, impeller 31 fixed connection is at the first end of notes material pipe 3, and when notes material pipe 3 drove impeller 31 rotatory, impeller 31 center can form the negative pressure district to with the suction of material from notes material pipe 3, and throw away impeller 31 with the material, thereby drop to centrifugal separation piece 2 in.

As shown in fig. 3 and 4, in one embodiment of the present utility model, the overflow pipe portion 24 of each centrifugal separator 2 is inserted into the filling pipe 3 in sequence, and the filling pipe 3 is connected to each centrifugal separator 2 in a driving manner.

Wherein, the feeding pipe 3 and each centrifugal separation piece 2 can realize driving connection through pin connection, key connection, interference connection and the like. Preferably, the injection pipe 3 is provided with splines, the overflow pipe portion 24 of each centrifugal separator 2 is provided with spline grooves, and each overflow pipe portion 24 is sequentially inserted into the injection pipe 3 along the axial direction of the injection pipe 3. When an external driving device (such as an electric motor, a hydraulic motor, etc.) drives the feeding pipe 3 to rotate, the feeding pipe 3 can drive each centrifugal separator 2 to rotate, so that the material generates vortex.

As shown in fig. 7 and 8, in one embodiment of the utility model, a plurality of protrusions 25 are further provided on the recess portion 23 of the centrifugal separator 2.

Wherein, a plurality of protruding 25 specifically set up on the surface of recess 23, protruding 25 can increase the frictional force of the surface of recess 23 and material, prevents that the material from skidding at the surface of recess 23, also makes centrifugal separation piece 2 drive the material more easily and forms the vortex.

The utility model also provides a yeast concentration and purification device which comprises the yeast concentration and purification assembly in the embodiment.

The yeast concentration and purification device specifically further comprises a base (not shown), a driving device (not shown), a guide pipe (not shown) and the like. The yeast concentrate and purify assembly of the above embodiment is mounted on a base and rotated by a driving means to drive the centrifugal separator 2 or the filler tube 3. The guide pipes are respectively connected between the material source injection pipes 3, between the first overflow port 21 and the liquid bearing dish, and between the discharge port 11 and the material bearing dish. The yeast concentration and purification apparatus of the present utility model has the yeast concentration and purification unit of the above-described embodiment, and therefore has the advantage of the yeast concentration and purification unit of the above-described embodiment.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims (10)

1. A yeast concentrate purification assembly, comprising:

a centrifugal separation structure comprising a cavity (1) and a centrifugal separation member (2) connected to the inside of the cavity (1); a discharge hole (11) is formed in the cavity (1); the centrifugal separation piece (2) is rotatably connected in the cavity (1), and the centrifugal separation piece (2) comprises a first overflow port (21), a second overflow port (22) and a groove part (23) for containing materials; the first overflow port (21) and the second overflow port (22) are both higher than the bottom of the groove part (23), the first overflow port (21) is arranged at a position close to the rotation center of the centrifugal separation piece (2), the second overflow port (22) is arranged at a position far away from the rotation center of the centrifugal separation piece (2), and the second overflow port (22) is communicated with the discharge port (11);

and the material injection structure extends into the centrifugal separation structure and is used for injecting materials into the centrifugal separation structure.

2. The yeast concentrate and purification assembly of claim 1, wherein the second overflow port (22) is located higher than the first overflow port (21) in the height direction of the centrifugal separation member (2).

3. The yeast concentrate and purification assembly of claim 1, wherein the number of centrifugal separation structures is a plurality, each of the centrifugal separation structures being disposed in sequence along a height direction of the yeast concentrate and purification assembly.

4. A yeast concentrating and purifying assembly according to claim 3, wherein each centrifugal separation member (2) is provided with an overflow pipe portion (24), each overflow pipe portion (24) is connected in a plugging manner in sequence, and a first end of each overflow pipe portion (24) is a first overflow port (21) of the corresponding centrifugal separation member (2); the second end of each overflow pipe portion (24) extends into the first end of an adjacent centrifugal separator (2).

5. A yeast concentrate purification assembly according to claim 3, wherein the centrifugal separation member (2) is a disc-shaped centrifugal separation member, the diameter of each disc-shaped centrifugal separation member increasing sequentially from top to bottom.

6. A yeast concentrate and purify assembly according to claim 3, wherein the centrifugal separator (2) comprises a first liquid guiding inclined surface section (231) and a second liquid guiding inclined surface section (232) distributed on both sides of the groove part (23), the first overflow port (21) is positioned at the end part of the first liquid guiding inclined surface section (231), the second overflow port (22) is positioned at the end part of the second liquid guiding inclined surface section (232), and the inclination angle of the first liquid guiding inclined surface section (231) is smaller than that of the second liquid guiding inclined surface section (232).

7. A yeast concentrate and purification assembly according to claim 3, wherein the injection structure comprises an injection tube (3), a first end of the injection tube (3) extending into the centrifugal separation structure, a second end of the tube being connected to a source of material.

8. The yeast concentrate and purification assembly of claim 7, wherein the overflow pipe portion (24) of each centrifugal separator (2) is sequentially inserted into the injection pipe (3), and the injection pipe (3) is in driving connection with each centrifugal separator (2).

9. A yeast concentrate and extract assembly according to any one of claims 1 to 8, characterized in that the recess (23) of the centrifugal separation member (2) is further provided with a plurality of protrusions (25).

10. A yeast concentrate purification apparatus comprising a yeast concentrate purification assembly as claimed in any one of claims 1 to 9.