Glucosamine particle screening assembly

Abstract

The invention discloses a glucosamine particle screening assembly, and belongs to the technical field of screening equipment, the glucosamine particle screening assembly comprises a center shaft and a screening part, the screening part comprises a base, and the base is fixedly connected to the center shaft in a sleeving mode; a sieve plate is arranged on the upper surface of the base; the center shaft is fixedly sleeved with an upper cover plate, an annular screening channel is formed between the lower side wall of the upper cover plate and the screening plate, the upper surface of the screening plate is in an inclined shape with the high middle and the low periphery, and the upper surface of the screening plate is arranged in a step shape. Through the design of the material guiding cavity and the material distributing opening in the center shaft, it is ensured that particles are smoothly conveyed from the hopper to the screening channel, the annular screening channel is formed by the screening plate of the screening part and the upper cover plate, and the special inclined and stepped layout of the screening plate is high in the middle and low in the periphery. Natural bouncing and rolling of the particles in the screening channel are promoted, interaction between the particles and contact between the particles and the surface of the screening plate are enhanced, and therefore the screening efficiency and precision are effectively improved.

Description

Technical Field

[0001] The invention relates to a glucosamine particle screening component and belongs to the technical field of screening equipment. Background Art

[0002] Generally speaking, appropriate particle size helps improve the solubility and absorption rate of the drug, thereby improving bioavailability. Large particles of glucosamine may dissolve and be absorbed slowly in the gastrointestinal tract, resulting in relatively low bioavailability; small particles of glucosamine may cause the dissolution process to be too rapid, resulting in excessive concentration of the drug in the local area, which may cause adverse reactions or increase the risk of drug degradation.

[0003] In the existing particle screening technology, the unevenness of particle size often becomes a key factor restricting screening efficiency and product quality. If the particles are too large, it is not only difficult to pass through the sieve holes, but also easy to cause the screen to be blocked during the screening process, affecting the smoothness of the screening channel and reducing the screening efficiency; while if the particles are too small, they may pass through the sieve holes together with impurities, resulting in a decrease in screening accuracy, affecting the purity of the product and the quality of subsequent processing. Therefore, how to effectively deal with the unevenness of particle size and achieve continuous and efficient screening has become a technical problem that needs to be solved urgently. The present invention is proposed to address this problem. Through innovative screening component design and dynamic screening mechanism, the retention time of particles in the screening channel is effectively extended, the collision and bounce between particles are increased, and the accumulation and blockage of particles near the sieve holes are reduced, thereby achieving efficient and accurate screening of particle size. Summary of the invention

[0004] The object of the present invention is to provide a glucosamine particle screening component to solve the problems raised in the above background technology.

[0005] In order to achieve the above object, the present invention adopts the following technical scheme: a glucosamine particle screening component, comprising: A central shaft, wherein a material guiding cavity is provided inside the central shaft, and a material distributing port is provided at the lower end of the material guiding cavity; A screening section, the screening section is used to screen the glucosamine particles, and the screening section comprises: A base, wherein the base is fixedly sleeved on the central axis; A sieve plate, which is arranged on the upper surface of the base and is used to sieve the glucosamine particles; An upper cover plate, the upper cover plate is fixedly sleeved on the central axis, a ring-shaped screening channel is formed between the lower side wall of the upper cover plate and the screen plate, the screening channel is connected to the material distribution port, and the position of the screening channel away from the material distribution port is an annular discharge port for large-particle glucosamine particles; The upper surface of the sieve plate is inclined with a high middle portion and low surrounding portions, and the upper surface of the sieve plate is arranged in a stepped shape.

[0006] Preferably, the base is provided with: A first interception sleeve, which is slidably connected to the connection between the base and the central shaft and is used to control the opening and closing of the material distribution port and the screening channel; A second interception sleeve, which is slidably connected to the base and is used to movably separate the screening channel into two parts; A third interception sleeve, which is slidably connected to the base and is used to control the opening and closing of the annular discharge port of the screening channel; Among them, the sieve holes of the sieve plate between the second interception sleeve and the central axis are smaller than the sieve holes of the sieve plate between the second interception sleeve and the third interception sleeve.

[0007] Preferably, the second interception sleeve is provided with a first material guide cavity connected to the first collecting cavity, the side wall of the third interception sleeve is provided with a second material guide cavity connected to the second collecting cavity, and the side walls of the second interception sleeve and the third interception sleeve are provided with screens for screening particles.

[0008] Preferably, the central axis reciprocates along the axial direction, and each step corner of the screen plate is tilted upward.

[0009] Preferably, a first collecting chamber, a second collecting chamber and a third collecting chamber are provided on the side wall of the base, and discharge ports are provided at the lower ends of the first collecting chamber, the second collecting chamber and the third collecting chamber.

[0010] Preferably, a first bracket is provided inside the first collecting chamber, and the first bracket is fixedly connected to the second intercepting sleeve; a second bracket is provided inside the second collecting chamber, and the second bracket is fixedly connected to the third intercepting sleeve; a plurality of impact columns are evenly distributed on the upper surfaces of the first bracket and the second bracket, and the upper end of each impact column passes through the screen plate and extends into the screening channel.

[0011] Preferably, an air collecting hood is arranged above the upper cover plate, an air supply hose is arranged on the air collecting hood, the upper end of the impact column on the first bracket passes through the upper cover plate and is connected to the air collecting hood, and the inner cavity of the impact column on the first bracket is connected to the air supply hose, and a plurality of blowing holes for blowing air into the screening channel are evenly opened on the impact column; An air suction cavity is provided inside the central axis, and the air suction cavity is communicated with the first collecting cavity through a connecting hole.

[0012] Preferably, the screening assembly is mounted in a casing.

[0013] Compared with existing technologies: The present invention ensures smooth transportation of particles from the hopper to the screening channel through the design of the material guide cavity and the material distribution port inside the central axis, the annular screening channel formed by the sieve plate and the upper cover plate of the screening part, and the unique inclined and stepped layout of the sieve plate with a high middle and low surroundings. It not only promotes the natural bouncing and tumbling of particles in the screening channel, but also enhances the interaction between particles and the contact with the surface of the sieve plate, thereby effectively improving the screening efficiency and accuracy. Small particles can easily pass through the sieve holes and fall into the lower layer, while large particles roll along the surface of the sieve plate to the annular discharge port for discharge, realizing the precise classification and classified collection of particles.

[0014] The present invention realizes continuous and efficient screening of particles by configuring the first interception sleeve, the second interception sleeve and the third interception sleeve so that the screening process is carried out alternately in two states. In the first state, the second interception sleeve separates the screening channel so that the particles are concentrated in the primary screening area, effectively removing smaller particles; then, in the second state, the material distribution port is closed and the annular discharge port is blocked, forcing the particles to further roll in the next-level screening channel for more detailed secondary screening. This alternating screening not only prolongs the retention time of particles in the screening channel and increases the collision and bounce between particles, but also improves the utilization rate of the sieve holes and the screening accuracy by changing the particle distribution density. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the installation structure of the present invention.

[0016] Figure 2 This is a cross-sectional view of the particle interception state of the second interception sleeve of the present invention.

[0017] Figure 3 This is a cross-sectional view of the first and third interception sleeves intercepting particles in the present invention.

[0018] Figure 4 It is a cross-sectional view of the impact column on the second bracket of the present invention extending into the screening channel.

[0019] Figure 5 It is a cross-sectional view of the impact column, gas collecting hood and gas supply hose of the present invention.

[0020] Figure 6 It is a cross-sectional view of the first bracket, impact column, air collecting hood and air supply hose of the present invention.

[0021] Figure 7 It is a schematic diagram of the structure of the power frame and the driving member of the present invention.

[0022] Figure 8 It is an exploded view of the power frame and the driving member of the present invention.

[0023] In the figure: 1. Central axis, 101. Material guide cavity, 102. Material distribution port; 2. Screening part, 201. base, 202. screen plate, 203. upper cover plate; 3. First interception set; 4. Second interception sleeve, 401, first material guiding cavity; 5. The third interception sleeve, 501, the second material guiding cavity; 6. first collecting chamber, 7. second collecting chamber, 8. third collecting chamber; 9. a first bracket, 10. a second bracket, 11. an impact column; 12. Gas collecting hood, 13. Gas supply hose, 14. Air suction chamber; 15. Filter layer; 16. Screen; 17. Casing, 18. Power frame. DETAILED DESCRIPTION

[0024] The present invention is described below with specific embodiments, but they are not intended to be limiting of the invention.

[0025] Embodiment 1 like Figure 1-Figure 8 As shown, in this embodiment, a glucosamine particle screening component is provided, including a central axis 1 and a screening part 2, the central axis 1 and the screening part 2 are installed in a housing 17, a guide cavity 101 is provided inside the central axis 1, the upper end of the guide cavity 101 is connected to a hopper for storing glucosamine particles, and the glucosamine particles in the hopper can be guided into the guide cavity 101, and a material distribution port 102 is provided at the lower end of the guide cavity 101, and then the glucosamine particles are discharged from the material distribution port 102; the screening part 2 is used to screen the glucosamine particles, and the screening part 2 includes a base 201, and the base 201 is fixed It is sleeved on the central axis 1; a sieve plate 202 for screening glucosamine particles is arranged on the upper surface of the base 201; an upper cover plate 203 is fixedly sleeved on the central axis 1, and a ring-shaped screening channel is formed between the lower side wall of the upper cover plate 203 and the sieve plate 202, the screening channel is connected with the feed outlet 102, and the position of the screening channel away from the feed outlet 102 is an annular discharge port for large-particle glucosamine particles; wherein, the upper surface of the sieve plate 202 is inclined with a high middle part and low surrounding parts, and the upper surface of the sieve plate 202 is arranged in a stepped manner to increase the bounce degree of the particles in the screening channel.

[0026] Feeding stage: glucosamine particles are first stored in a hopper. Through gravity or with the aid of mechanical vibration, the particles enter the guide cavity 101 of the central axis 1 along the hopper. The particles flow downward in the guide cavity 101 and reach the dispensing port 102 at its lower end.

[0027] Screening stage: When particles are discharged from the distribution port 102 , they enter the annular screening channel formed by the screen plate 202 and the upper cover plate 203 .

[0028] The upper surface of the sieve plate 202 is designed to be high in the middle and low around, and has a stepped layout, so that the particles are not only affected by gravity when passing through the sieve plate 202, but also bounce and tumble due to the guidance of the inclined surface and the steps, which increases the chances of mutual collision between particles and contact with the surface of the sieve plate 202, thereby improving the screening efficiency.

[0029] Because bouncing and tumbling help small particles to pass through the sieve holes and fall into the lower layer, large particles continue to roll along the surface of the sieve plate 202 due to inertia and are eventually discharged from the annular discharge port.

[0030] Discharge stage: After screening, particles (meeting the required size) can fall through the sieve holes of the sieve plate 202 to the bottom of the sieve plate 202, while large particles are directly discharged from the annular discharge port for subsequent processing or re-screening.

[0031] like Figure 1-Figure 2 As shown, in order to make the glucosamine particles stay in the sieving channel for a long time; A first interception sleeve 3, a second interception sleeve 4 and a third interception sleeve 5 are provided on the base 201. The first interception sleeve 3 is slidably connected at the connection between the base 201 and the central axis 1, and is used to control the opening and closing of the distribution port 102 and the screening channel; the second interception sleeve 4 is slidably connected to the base 201, and is used to movably separate the screening channel into two parts; the third interception sleeve 5 is slidably connected to the base 201, and is used to control the opening and closing of the annular discharge port of the screening channel; wherein, the sieve holes of the sieve plate 202 between the second interception sleeve 4 and the central axis 1 are smaller than the sieve holes of the sieve plate 202 between the second interception sleeve 4 and the third interception sleeve 5.

[0032] A first interception sleeve 3 is slidably connected at the connection between the base 201 and the central axis 1 for movably separating the distribution port 102 from the screening channel, a second interception sleeve 4 is slidably connected on the base 201 for movably separating the screening channel into two parts, and a third interception sleeve 5 is also slidably connected on the base 201 for movably blocking the annular discharge port of the screening channel, and the sieve holes of the sieve plate 202 between the second interception sleeve 4 and the central axis 1 are smaller than the sieve holes of the sieve plate 202 between the second interception sleeve 4 and the third interception sleeve 5.

[0033] In the description of the first interception sleeve 3, the second interception sleeve 4 and the third interception sleeve 5, the first interception sleeve 3 and the third interception sleeve 5 slide synchronously, and the second interception sleeve 4 slides independently.

[0034] First state: Figure 2As shown, when the second interception sleeve 4 slides upward to separate the screening channel into two parts, the first interception sleeve 3 and the third interception sleeve 5 slide downward, and the upper end surfaces of the first interception sleeve 3 and the third interception sleeve 5 slide to be flush with the upper surface of the screen plate 202. At this time, the feed port 102 is connected with the screening channel, and the annular discharge port of the screening channel is in an open state.

[0035] In this state, after the particles in the guide cavity 101 flow from the distribution port 102 to the inside of the screening channel, the particles are intercepted on the sieve plate 202 between the second interception sleeve 4 and the central axis 1 because the second interception sleeve 4 divides the screening channel into two parts. The sieve plate 202 here performs primary screening on the particles, thereby screening out smaller particles.

[0036] Second state: Figure 2 As shown, after the second interception sleeve 4 slides downward, when the upper end surface of the second interception sleeve 4 slides to be flush with the upper surface of the screen plate 202, the first interception sleeve 3 and the third interception sleeve 5 slide upward, and the first interception sleeve 3 separates the feed port 102 from the screening channel, and the third interception sleeve 5 blocks the annular discharge port of the screening channel.

[0037] In this state, the feed port 102 is closed, and the particles in the guide cavity 101 cannot continue to flow into the screening channel, and the particles that have passed the primary screening continue to roll toward the annular discharge port in the screening channel. During the rolling process, the particles are subjected to secondary screening on the sieve plate 202 between the second interception sleeve 4 and the third interception sleeve 5. The particles that meet the requirements are screened through the sieve holes of the sieve plate 202, and the large particles are retained above the sieve plate 202.

[0038] The first interception sleeve 3, the second interception sleeve 4 and the third interception sleeve 5 are switched back and forth between the first state and the second state to achieve continuous and batch particle screening.

[0039] When the first interception sleeve 3, the second interception sleeve 4 and the third interception sleeve 5 are switched from the first state to the second state, the particles move on the screen plate 202 in a divergent manner, and the amount of particles per unit area on the screen plate 202 gradually decreases, which is more conducive to the screening of particles.

[0040] In addition, two power frames 18 are arranged below the screening part 2, one power frame 18 is connected to the first interception sleeve 3 and the third interception sleeve 5, and the other power frame 18 is connected to the second interception sleeve 4. A driving member can be installed on the casing 17, and the driving member drives the first interception sleeve 3, the second interception sleeve 4 and the third interception sleeve 5 to slide through the power frame 18, and the driving member can be a cylinder.

[0041] like Figure 2-Figure 5As shown, in order to collect the screened particles, a first collecting chamber 6, a second collecting chamber 7 and a third collecting chamber 8 are provided on the side wall of the base 201, and discharge ports are provided at the lower ends of the first collecting chamber 6, the second collecting chamber 7 and the third collecting chamber 8.

[0042] The first collecting chamber 6 is located directly below the sieve plate 202 between the first interception sleeve 3 and the second interception sleeve 4, and is used to collect smaller glucosamine particles (small particles and powders that do not meet the requirements). The second collecting chamber 7 is located directly below the sieve plate 202 between the second interception sleeve 4 and the third interception sleeve 5, and is used to collect glucosamine particles that meet the requirements (particles that meet the requirements can be directly used for subsequent processing). The third collecting chamber 8 is arranged on the side of the third interception sleeve 5 away from the sieve plate 202, and is used to collect larger glucosamine particles (large particles that do not meet the requirements).

[0043] The second interception sleeve 4 is provided with a first material guide cavity 401 connected with the first collecting cavity 6, and the side wall of the third interception sleeve 5 is provided with a second material guide cavity 501 connected with the second collecting cavity 7, and the side walls of the second interception sleeve 4 and the third interception sleeve 5 are provided with a sieve 16 for screening particles, the sieve holes of the sieve 16 on the second interception sleeve 4 are equal to the sieve holes of the sieve plate 202 between the first interception sleeve 3 and the second interception sleeve 4, and the sieve holes of the sieve 16 on the third interception sleeve 5 are equal to the sieve holes of the sieve plate 202 between the second interception sleeve 4 and the third interception sleeve 5.

[0044] Embodiment 2 like Figure 1-Figure 3 , Figure 7 and Figure 8 As shown, on the basis of Example 1, in order to further improve the screening efficiency of particles in the screening channel, the central axis 1 rotates back and forth along its own axial line, and the reciprocating rotation is a forward rotation for a certain angle and then a reverse rotation for a certain angle. Since the base 201, the sieve plate 202 and the upper cover plate 203 of the screening part 2 are fixed on the central axis 1, the base 201, the sieve plate 202 and the upper cover plate 203 rotate synchronously with the central axis 1, and each step corner of the sieve plate 202 is tilted upward.

[0045] During the particle screening process, the central axis 1, the base 201, the sieve plate 202 and the upper cover plate 203 rotate synchronously. The centrifugal effect generated during the rotation can drive the particles in the screening channel to move in the direction away from the central axis 1. In the process of movement, the particles on each step on the sieve plate 202 move to the step corner and are thrown upward along the step corner. The throwing effect of the step corner helps to reduce the accumulation and blockage of particles near the sieve holes, keeps the screening channel unobstructed, and further improves the screening efficiency and stability.

[0046] In addition, if Figure 3 , Figure 7 as well as Figure 8 As shown, in order to make the driving member adapt to the rotation of the central shaft 1 (i.e., the screening part), the driving member (e.g., the output end of the cylinder) is connected to the power frame 18 in a sliding manner, that is, the power frame 18 can drive the first interception sleeve 3, the second interception sleeve 4 and the third interception sleeve 5 to slide without affecting the rotation of the central shaft 1 (i.e., the screening part).

[0047] Embodiment 3 like Figure 1-Figure 2 As shown, on the basis of embodiment 1, in order to further improve the screening efficiency of the screen plate 202, a first bracket 9 is provided inside the first collecting chamber 6, and the first bracket 9 is fixedly connected to the second intercepting sleeve 4; a second bracket 10 is provided inside the second collecting chamber 7, and the second bracket 10 is fixedly connected to the third intercepting sleeve 5; a plurality of impact columns 11 are evenly distributed on the upper surfaces of the first bracket 9 and the second bracket 10, and the upper end of each impact column 11 passes through the screen plate 202 and extends into the screening channel.

[0048] After the second interception sleeve 4 slides upward, the first bracket 9 slides upward, so that the impact columns 11 thereon are distributed in the screening channel. At this time, during the primary screening process of the particles, the setting of the impact columns 11 on the first bracket 9 is conducive to breaking up the accumulated particles; After the third intercepting sleeve 5 slides upward, the second bracket 10 slides upward, causing the impact columns 11 thereon to be distributed in the screening channel. At this time, during the secondary screening process of the particles, the setting of the impact columns 11 on the second bracket 10 is conducive to breaking up the accumulated particles.

[0049] like Figure 4-Figure 5 As shown, in order to be able to screen out the glucosamine powder, an air collecting hood 12 is arranged above the upper cover plate 203, and an air supply hose 13 is arranged on the air collecting hood 12. The upper end of the impact column 11 on the first bracket 9 passes through the upper cover plate 203 and is connected to the air collecting hood 12, and the inner cavity of the impact column 11 on the first bracket 9 is connected to the air supply hose 13, and a plurality of blowing holes for blowing air into the screening channel are evenly opened on the impact column 11.

[0050] An air suction chamber 14 is provided inside the central axis 1. The air suction chamber 14 can be connected to a suction pump through an air suction hose. The operation of the suction pump can achieve the effect of sucking gas. The air suction chamber 14 is connected to the first collecting chamber 6 through a connecting hole. The connecting hole is provided on the central axis 1, the first intercepting sleeve 3 and the side wall of the first collecting chamber 6. When the first intercepting sleeve 3 slides downward, the connecting holes on the central axis 1, the first intercepting sleeve 3 and the first collecting chamber 6 overlap. At this time, the air supply hose 13, the air collecting hood 12 and the impact column 11 on the first bracket 9 are used to blow air to the primary screening position, and then the air suction chamber 14 is used to suck the gas in the first collecting chamber 6. In this way, there is a downward airflow in the primary screening, which is beneficial for the powder mixed in the particles (the powder produced by grinding transition) to be collected into the first collecting chamber 6.

[0051] In addition, a filter layer 15 is provided on the side wall of the first collecting chamber 6 to prevent powder from entering the air inlet chamber 14 .

[0052] Finally, it should be noted that the above embodiments are only used to illustrate rather than limit the technical solutions of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that the present invention can still be modified or replaced by equivalents. Any modification or partial replacement that does not depart from the spirit and scope of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A glucosamine particle screening component, characterized in that: include: A central shaft (1), wherein a material guiding cavity (101) is provided inside the central shaft (1), and a material dispensing opening (102) is provided at the lower end of the material guiding cavity (101); A screening part (2), the screening part (2) is used to screen the glucosamine particles, and the screening part (2) comprises: A base (201), wherein the base (201) is fixedly sleeved on the central shaft (1); A sieve plate (202), the sieve plate (202) being arranged on the upper surface of the base (201) and used for sieving glucosamine particles; An upper cover plate (203), the upper cover plate (203) being fixedly sleeved on the central shaft (1), a ring-shaped screening channel being formed between the lower side wall of the upper cover plate (203) and the screen plate (202), the screening channel being in communication with the material distribution port (102), and a position of the screening channel away from the material distribution port (102) being a ring-shaped discharge port for large-particle glucosamine particles; The upper surface of the sieve plate (202) is inclined with a high middle portion and low surrounding portions, and the upper surface of the sieve plate (202) is arranged in a stepped shape.

2. A glucosamine granule screening assembly according to claim 1, characterized in that: The base (201) is provided with: A first interception sleeve (3), the first interception sleeve (3) being slidably connected to the connection between the base (201) and the central shaft (1), and being used to control the opening and closing of the material distribution port (102) and the screening channel; A second interception sleeve (4), the second interception sleeve (4) being slidably connected to the base (201) and used to movably separate the screening channel into two parts; A third interception sleeve (5), the third interception sleeve (5) being slidably connected to the base (201) and used for controlling the opening and closing of the annular discharge port of the screening channel; The sieve holes of the sieve plate (202) between the second interception sleeve (4) and the central axis (1) are smaller than the sieve holes of the sieve plate (202) between the second interception sleeve (4) and the third interception sleeve (5).

3. A glucosamine granule screening assembly according to claim 2, characterized in that: The second interception sleeve (4) is provided with a first material guide cavity (401) connected to the first collection cavity (6), and the side wall of the third interception sleeve (5) is provided with a second material guide cavity (501) connected to the second collection cavity (7), and screens (16) for screening particles are arranged on the side walls of the second interception sleeve (4) and the third interception sleeve (5).

4. The glucosamine granule screening assembly according to claim 1, characterized in that: The central shaft (1) reciprocates along the axial direction, and each stepped corner of the screen plate (202) is tilted upward.

5. The glucosamine granule screening assembly according to claim 1, characterized in that: A first collecting chamber (6), a second collecting chamber (7) and a third collecting chamber (8) are provided on the side wall of the base (201); and discharge ports are provided at the lower ends of the first collecting chamber (6), the second collecting chamber (7) and the third collecting chamber (8).

6. A glucosamine granule screening assembly according to claim 5, characterized in that: A first bracket (9) is arranged inside the first collecting chamber (6), and the first bracket (9) is fixedly connected to the second intercepting sleeve (4). A second bracket (10) is arranged inside the second collecting chamber (7), and the second bracket (10) is fixedly connected to the third intercepting sleeve (5). A plurality of impact columns (11) are evenly distributed on the upper surfaces of the first bracket (9) and the second bracket (10), and the upper end of each impact column (11) passes through the sieve plate (202) and extends into the sieving channel.

7. A glucosamine granule screening assembly according to claim 6, characterized in that: An air collecting hood (12) is arranged above the upper cover plate (203), and an air supply hose (13) is arranged on the air collecting hood (12); the upper end of the impact column (11) on the first bracket (9) passes through the upper cover plate (203) and is connected to the air collecting hood (12); the inner cavity of the impact column (11) on the first bracket (9) is communicated with the air supply hose (13); and a plurality of blowing holes for blowing air into the screening channel are evenly arranged on the impact column (11); An air suction cavity (14) is provided inside the central shaft (1), and the air suction cavity (14) is connected to the first collecting cavity (6) through a connecting hole.

8. The glucosamine granule screening assembly according to claim 1, characterized in that: The screening assembly is installed in the casing (17).

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