Device and method for reducing heavy metal content of sporoderm-broken ganoderma lucidum spore powder

Abstract

The invention discloses a device and method for reducing the heavy metal content of wall-broken ganoderma lucidum spore powder, and relates to the technical field of ganoderma lucidum spore powder treatment.The device for reducing the heavy metal content of the wall-broken ganoderma lucidum spore powder comprises a material guiding sleeve, a conical discharging sleeve is arranged at the top of the material guiding sleeve, and a plurality of arc-shaped inwards-concave parts are arranged on the outer wall of the material guiding sleeve; a powder discharging port is formed in the arc-shaped inwards-concave part of the material guiding sleeve, a rotatable first grinding roller is arranged in the arc-shaped inwards-concave part of the material guiding sleeve, the outer ring of the first grinding roller is matched with the arc-shaped inwards-concave part, a protective sleeve is arranged on the outer side of the material guiding sleeve, and a grinding discharging area is formed between the inner wall of the protective sleeve and the outer wall of the material guiding sleeve. A negative pressure assembly is fixed to the inner wall of the protective sleeve and located in the grinding discharging area. The method has the effect of effectively reducing the heavy metal content of the sporoderm-broken ganoderma lucidum spore powder.

Description

Technical Field

[0001] This invention relates to the technical field of Ganoderma lucidum spore powder processing, and in particular to an apparatus and method for reducing the heavy metal content of broken-cell wall Ganoderma lucidum spore powder. Background Technology

[0002] Ganoderma lucidum spore powder has an outer wall made of chitin, which is extremely difficult for human stomach acid to digest. Unbroken spore powder cannot be fully digested and absorbed by the human body. Only by breaking this outer wall can the effective ingredients tightly wrapped by the outer wall be utilized and absorbed by the human body to a greater extent.

[0003] Currently, the main and practical method for breaking down the cell walls of Ganoderma lucidum spore powder in China is mechanical breaking, with commonly used equipment being ultrafine pulverizing vibratory mills and extrusion-type cell wall breakers. The heavy metal content in the broken spore powder obtained by extrusion rollers varies considerably. The main reason is that the amount of oil extracted from the spore powder during extrusion is too small, resulting in significant friction between the steel roller surface and the spore powder, causing heavy metal particles to detach from the steel roller surface.

[0004] However, due to the difficulty in ensuring uniformity of the feeding process when Ganoderma lucidum spore powder is poured into the device, uneven grinding occurs when the powder comes into contact with the steel roller. This unevenness may cause some particles to be over-ground while others are not adequately processed, thus exacerbating the wear on the surface of the steel roller and leading to an increase in the heavy metal content of the broken-cell wall Ganoderma lucidum spore powder. Summary of the Invention

[0005] This application provides an apparatus and method for reducing the heavy metal content of broken-cell wall Ganoderma lucidum spore powder, which has the effect of effectively reducing the heavy metal content of broken-cell wall Ganoderma lucidum spore powder.

[0006] This application provides an apparatus and method for reducing the heavy metal content of broken-cell wall Ganoderma lucidum spore powder, which adopts the following technical solution: An apparatus and method for reducing the heavy metal content of broken Ganoderma lucidum spore powder. The apparatus includes a guide sleeve with a conical discharge sleeve at the top. The outer wall of the guide sleeve has several arc-shaped concave portions. A powder discharge port is provided in the arc-shaped concave portions of the guide sleeve. A rotatable first grinding roller is provided in the arc-shaped concave portions of the guide sleeve, and the outer ring of the first grinding roller matches the arc-shaped concave portions. A protective sleeve is provided on the outer side of the guide sleeve. A grinding and discharge area is formed between the inner wall of the protective sleeve and the outer wall of the guide sleeve. A negative pressure component is fixed on the inner wall of the protective sleeve within the grinding and discharge area.

[0007] By adopting the above technical solution, Ganoderma lucidum spore powder enters the interior of the guide sleeve through the conical feeding sleeve. The negative pressure generated by the negative pressure component in the grinding and discharging area guides the Ganoderma lucidum spore powder to the powder discharge port, where it contacts the outer surface of the first grinding roller to crush the Ganoderma lucidum spore powder. The continuity of the negative pressure ensures the continuity of the crushed Ganoderma lucidum spore powder and prevents it from being overheated during the grinding process, thus protecting the active ingredients while improving the removal effect of heavy metals.

[0008] Preferably, a connecting rod is coaxially connected to the top of the first grinding roller, and a pulley is coaxially connected to the top of the connecting rod. The number of pulleys corresponds one-to-one with the number of the first grinding rollers. Several pulleys are connected to each other by a belt body. Any pulley is coaxially connected to a third drive motor fixedly mounted on a protective sleeve.

[0009] By adopting the above technical solution and simultaneously operating multiple first grinding rollers, grinding efficiency can be significantly improved, and the processing speed of Ganoderma lucidum spore powder can be accelerated. The arrangement of multiple first grinding rollers ensures uniform distribution and full contact of the material, improves the consistency of grinding, and reduces the presence of unground material.

[0010] Preferably, the inside of the guide sleeve is provided with a pressure-reducing cone.

[0011] By adopting the above technical solution, the conical structure of the pressure reducing cone can gradually reduce the pressure during the flow process by changing the flow path and velocity of the material, thereby effectively reducing the internal pressure during the material guiding process and preventing the gas from expanding, spraying out or scattering due to excessive pressure.

[0012] Preferably, the bottom of the pressure reducing cone is provided with a second grinding roller, the outer ring of the second grinding roller is matched with the inner ring of the guide sleeve, the inside of the guide sleeve is provided with a second drive motor, and the output end of the second drive motor is coaxially connected to the bottom of the second grinding roller.

[0013] By adopting the above technical solution, when the material passes through the pressure reducing cone, the changes in flow rate and pressure caused by the pressure reduction will cause the material particles to flow between the outer ring of the second grinding roller and the inner ring of the guide sleeve, and grind each other. Specifically, the tight fit between the outer ring of the second grinding roller and the guide sleeve causes the material to be cut and ground when it passes through. This process can not only refine the material and promote smoother flow by increasing the shearing force, but also promote the uniformity of the material.

[0014] Preferably, the outer surfaces of both the first and second grinding rollers are coated with a nano-composite ceramic coating.

[0015] By adopting the above technical solutions, the application of nanotechnology can enable nanocomposite ceramic coatings to have finer particles and a larger specific surface area. This microstructure can provide better physicochemical properties, including optimization of hardness and coefficient of friction.

[0016] Preferably, the first and second grinding rollers are made of graded functional metal matrix composite material.

[0017] By adopting the above technical solutions, gradient functional metal matrix composites integrate metals with different compositions and properties, resulting in a gradient distribution of the material's hardness, toughness, and wear resistance, thus exhibiting high hardness and wear resistance.

[0018] Preferably, the outer surfaces of the first and second grinding rollers are provided with a mesh-like micro-wire mesh layer, and the interior of the micro-wire mesh layer is provided with micro-pits.

[0019] By adopting the above technical solution, the micro-pits formed on the surfaces of the first and second grinding rollers by the micro-wire mesh layer increase the surface roughness, increase the surface area of ​​the first and second grinding rollers in contact with the spore powder, and improve the grinding effect.

[0020] Preferably, a method for reducing the heavy metal content of broken-cell wall Ganoderma lucidum spore powder, based on the above-mentioned apparatus for reducing the heavy metal content of broken-cell wall Ganoderma lucidum spore powder, includes the following steps: S1: Before the first extrusion of Ganoderma lucidum spore powder, micro-pits are formed on the surfaces of the first and second grinding rollers using laser micromachining technology to improve the crushing of spore powder; S2: The suction force created by the negative pressure component is used to guide the material into the guide sleeve. During this process, gravity and negative pressure work together to make the material flow downward along the direction of gravity; gravity makes the material slide down smoothly. S3: Start the first drive motor and the second drive motor at the bottom of the first grinding roller and the second grinding roller respectively to continuously squeeze the cell wall broken spore powder.

[0021] By adopting the above technical solution, the attraction created by the negative pressure component causes the material to flow downward along the direction of gravity; in addition, the increase in gravity effectively promotes the smooth descent of the material, significantly reducing the risk of metal peeling off the surfaces of the first and second grinding rollers, thereby effectively reducing the heavy metal content in the broken Ganoderma lucidum spore powder.

[0022] Preferably, in S1, the micro-pits are evenly distributed in an array of 30μm and 15μm deep on the outer surfaces of the first and second grinding rollers.

[0023] By adopting the above technical solution, the micro-pits formed on the surfaces of the first and second grinding rollers through laser micromachining technology not only improve lubrication performance, but also significantly improve the working efficiency and service life of the equipment, and have good prospects for industrial application.

[0024] Preferably, in S4, the rotational speeds of the first grinding roller and the second grinding roller are 30-40 r / min and 20-25 r / min, respectively.

[0025] By adopting the above technical solution, different speed settings help to achieve staged crushing. The first grinding roller can perform preliminary crushing better, while the second grinding roller is responsible for further refining. This step-by-step crushing helps to obtain a more uniform particle distribution.

[0026] In summary, this application has the following beneficial effects: 1. This device for reducing the heavy metal content of broken Ganoderma lucidum spore powder involves the Ganoderma lucidum spore powder entering the interior of the guide sleeve through the interior of the conical feeding sleeve. The negative pressure generated by the negative pressure component in the grinding and discharging area guides the Ganoderma lucidum spore powder to the powder discharge outlet, where it contacts the outer surface of the first grinding roller to crush the Ganoderma lucidum spore powder. The continuous negative pressure ensures the continuity of the crushed Ganoderma lucidum spore powder and prevents it from being overheated during the grinding process, thus protecting the active ingredients while improving the removal effect of heavy metals.

[0027] 2. The method for reducing the heavy metal content of broken Ganoderma lucidum spore powder uses the attraction created by the negative pressure component to make the material flow downward along the direction of gravity; in addition, the increase in gravity effectively promotes the smooth downward movement of the material, significantly reducing the risk of metal peeling off the surfaces of the first and second grinding rollers, thereby effectively reducing the heavy metal content in the broken Ganoderma lucidum spore powder. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of the device for reducing the heavy metal content of broken Ganoderma lucidum spore powder in this embodiment; Figure 2 This is a schematic diagram of the connection structure between the pulley and the belt body in this embodiment; Figure 3 This is a schematic diagram of the connection structure between the pressure reducing cone and the second grinding roller in this embodiment; Figure 4 This is a schematic diagram of the overall structure of the nanocomposite ceramic coating in this embodiment; Explanation of reference numerals in the attached drawings: 1. Guide sleeve; 2. Conical discharge sleeve; 3. Arc-shaped concave part; 4. Powder discharge port; 5. First grinding roller; 6. Protective sleeve; 7. Connecting rod; 8. Pulley; 9. Belt body; 10. Pressure reducing cone; 11. Second grinding roller; 12. Nanocomposite ceramic coating; 13. Micro mesh layer; 14. Micro-pit. Detailed Implementation

[0029] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content. Example

[0030] This invention discloses an apparatus and method for reducing the heavy metal content of broken-cell wall Ganoderma lucidum spore powder, such as... Figure 1 As shown, the device for reducing the heavy metal content of broken Ganoderma lucidum spore powder includes a guide sleeve 1, a conical feeding sleeve 2 at the top of the guide sleeve 1, several arc-shaped concave portions 3 on the outer wall of the guide sleeve 1, a powder discharge port 4 in the arc-shaped concave portion 3 of the guide sleeve 1, a rotatable first grinding roller 5 in the arc-shaped concave portion 3 of the guide sleeve 1, the outer ring of the first grinding roller 5 matching the arc-shaped concave portion 3, a protective sleeve 6 on the outer side of the guide sleeve 1, a grinding and discharge area formed between the inner wall of the protective sleeve 6 and the outer wall of the guide sleeve 1, and a negative pressure component fixed on the inner wall of the protective sleeve 6 within the grinding and discharge area.

[0031] like Figure 1 As shown, Ganoderma lucidum spore powder is guided from the conical feeding sleeve 2 into the guiding sleeve 1. Under the combined action of gravity and negative pressure, the powder flows downward. The pressure component creates a sub-normal pressure environment inside the protective sleeve 6. This negative pressure attracts the Ganoderma lucidum spore powder, allowing it to flow smoothly to the powder discharge outlet 4, thereby enhancing the fluidity of the material and reducing the possibility of blockage. A rotatable first grinding roller 5 is installed inside the guiding sleeve 1, which matches the inner wall of the arc-shaped concave part 3. The rotation of the first grinding roller 5 grinds the Ganoderma lucidum spore powder, crushing the originally larger particles to increase their surface area and thus reduce the heavy metal content. The continuity of the negative pressure ensures the continuity of the crushed Ganoderma lucidum spore powder and prevents it from being overheated during the grinding process, protecting the active ingredients while improving the removal of heavy metals.

[0032] like Figure 1As shown, the combination of grinding and negative pressure can effectively break the cell walls of Ganoderma lucidum spore powder, promote the release and removal of heavy metals, and ultimately make the product purer; the use of negative pressure can improve the flowability of materials, reduce jamming in mechanical processes, and improve production efficiency.

[0033] like Figure 1 and Figure 2 As shown, a connecting rod 7 is coaxially connected to the top of the first grinding roller 5, and a pulley 8 is coaxially fixedly connected to the top of the connecting rod 7. The number of pulleys 8 corresponds one-to-one with the number of first grinding rollers 5. By setting multiple pulleys 8, each corresponding to a multiple first grinding roller 5, multiple first grinding rollers 5 can perform grinding operations simultaneously. This can improve grinding efficiency and uniformity. Several pulleys 8 are connected by a belt body 9, and any pulley 8 is coaxially connected to a third drive motor fixedly installed on the protective sleeve 6.

[0034] like Figure 1 and Figure 2 As shown, the third drive motor provides power to each first grinding roller 5 through a coaxially mounted pulley 8; the third drive motor transmits the rotational motion to the pulley 8 through a belt transmission system, and then the pulley 8 rotates the first grinding roller 5 connected to it, thereby realizing the grinding of Ganoderma lucidum spore powder.

[0035] like Figure 1 and Figure 2 As shown, the synchronous operation of multiple first grinding rollers 5 can significantly improve grinding efficiency and accelerate the processing speed of Ganoderma lucidum spore powder; the setting of multiple first grinding rollers 5 ensures uniform distribution and full contact of materials, improves the consistency of grinding and reduces the presence of unground materials.

[0036] like Figure 3 As shown, the inside of the guide sleeve 1 is equipped with a pressure-reducing cone 10, which has a conical structure. The conical structure of the pressure-reducing cone 10 gradually reduces the pressure during the flow process by changing the flow path and velocity of the material. When the material flows from a wider inlet into a narrower conical section, the pressure will decrease due to the increase in flow velocity and the decrease in cross-sectional area. The conical design creates a pressure gradient during the material flow process. Under the influence of this pressure gradient, the material can flow more smoothly downwards, thereby avoiding sudden pressure increases and poor flow of the material.

[0037] like Figure 3 As shown, the pressure reducing cone 10 can effectively reduce the internal pressure during the material guiding process, preventing the material from expanding, spraying out, or scattering due to excessive pressure; the cone-shaped structure makes the material flow more stable, reduces turbulence in the flow, improves the flow efficiency of the material, and avoids blockage.

[0038] like Figure 3As shown, a second grinding roller 11 is provided at the bottom of the pressure reducing cone 10. The outer ring of the second grinding roller 11 matches the inner ring of the guide sleeve 1. When the material passes through the pressure reducing cone 10, the changes in flow rate and pressure caused by the pressure reduction will cause the material particles to flow between the outer ring of the second grinding roller 11 and the inner ring of the guide sleeve 1, and grind each other. Specifically, the tight fit between the outer ring of the second grinding roller 11 and the guide sleeve 1 causes the material to be cut and ground when it passes through. This process can not only refine the material and promote smoother flow by increasing the shearing force, but also promote the uniformity of the material.

[0039] like Figure 4 As shown, the outer surfaces of the first grinding roller 5 and the second grinding roller 11 are both provided with a nano-composite ceramic coating 12. The zirconium oxide / silicon carbide composite ceramic layer (thickness 50-80μm) is prepared on the surface of the steel roller by plasma spraying process. The Vickers hardness can reach more than 1800HV and the coefficient of friction is reduced to less than 0.15. This process can reduce the amount of heavy metal precipitation by 92% without affecting the thermal conductivity.

[0040] like Figure 4 As shown, specifically, this process utilizes high-temperature plasma to heat zirconium oxide and silicon carbide to a molten state, and then sprays them onto the surfaces of the first grinding roller 5 and the second grinding roller 11 to form a tightly bonded ceramic coating. This process enables efficient material deposition at high temperatures. The composite coating of zirconium oxide and silicon carbide combines the superior properties of both. Zirconia has excellent wear resistance and toughness, while silicon carbide provides extremely high hardness and thermal conductivity, thereby enhancing the overall performance of the coating. The application of nanotechnology enables the coating to have finer particles and a larger specific surface area. This microstructure can provide better physicochemical properties, including optimization of hardness and coefficient of friction.

[0041] like Figure 4 As shown, the first grinding roller 5 and the second grinding roller 11 are made of gradient functional metal matrix composite material. Specifically, the gradient functional metal matrix composite material is made of Fe-Cr-Mo-W gradient alloy. A dense intermetallic compound layer is formed on its surface 3mm area using laser cladding technology. The Rockwell hardness reaches HRC62-65, and the wear resistance is improved by 300% while maintaining the toughness of the matrix.

[0042] like Figure 4 As shown, gradient functional metal matrix composites integrate metals with different compositions and properties, resulting in a gradient distribution of hardness, toughness, and wear resistance. The aim is to meet the mechanical property requirements of different regions by adjusting the alloy composition and structure. Specifically, in the Fe-Cr-Mo-W alloy system, the combination of iron, chromium, molybdenum, and tungsten endows the material with a variety of excellent properties, such as high strength, wear resistance, and corrosion resistance.

[0043] like Figure 4 As shown, laser cladding is a high-energy-density material processing technology that uses a laser beam to melt metal powder or wire and then deposit it onto the surface of a substrate to form a composite layer. This process can achieve local heating and melting in a short time to form a dense intermetallic compound layer, which has high hardness and wear resistance.

[0044] like Figure 4 As shown, the outer surfaces of the first grinding roller 5 and the second grinding roller 11 are provided with a mesh-like microfiber layer 13, and the interior of the microfiber layer 13 is provided with micro-pits 14. An array of micro-pits 14 with a diameter of 30 μm and a depth of 15 μm is prepared on the surfaces of the first grinding roller 5 and the second grinding roller 11 using laser micromachining technology. Bio-lubricant is placed within the micro-pits 14 of both the first grinding roller 5 and the second grinding roller 11; and the distribution density of the micro-pits 14 is 500 pits / cm², which is used to increase the oil storage capacity by 150% and reduce the friction temperature rise by 28°C. This structure... The structure helps to improve the functionality of the surfaces of the first grinding roller 5 and the second grinding roller 11; the use of laser micromachining technology to prepare micro-pits 14 on the surface of the grinding rollers can achieve high-precision and uniform processing; this technology can precisely control the micro-morphology without affecting the overall structure of the material; the design of the micro-pits 14 increases the surface roughness, which not only increases the surface area of ​​mechanical-liquid contact, but also can accommodate biological lubricants and enhance the lubrication effect; the micro-pits 14 can capture lubricants, thereby providing continuous lubrication during operation and reducing friction and wear.

[0045] like Figure 4 As shown, the boundary lubrication film provides an additional lubrication interface, changes the surface of frictional contact, reduces the direct contact between the two metal surfaces, and lowers the frictional force. The presence of the boundary lubrication film reduces the roughness of the metal surface and the possibility of friction welding, thereby reducing frictional power consumption and wear.

[0046] A method for reducing the heavy metal content of broken-cell wall Ganoderma lucidum spore powder, based on the aforementioned apparatus for reducing the heavy metal content of broken-cell wall Ganoderma lucidum spore powder, includes the following steps: S1: Before the first extrusion of Ganoderma lucidum spore powder, an array of micro-pits 14 with a diameter of 30 μm and a depth of 15 μm are formed on the surface of the first grinding roller 5 and the second grinding roller 11 by laser micromachining technology to improve the crushing of spore powder; S2: The attraction created by the negative pressure component is used to guide the material into the guide sleeve 1. During this process, gravity and negative pressure work together to make the material flow downward along the direction of gravity; gravity makes the material slide down smoothly. S4: Start the first drive motor and the second drive motor at the bottom of the first grinding roller 5 and the second grinding roller 11 respectively. The rotation speeds of the first grinding roller 5 and the second grinding roller 11 are 30-40 r / min and 20-25 r / min respectively, for continuous extrusion of cell wall broken spore powder.

[0047] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A device for reducing the heavy metal content of broken Ganoderma lucidum spore powder, comprising a material guiding sleeve (1), characterized in that: The top of the guide sleeve (1) is provided with a conical feeding sleeve (2). The outer wall of the guide sleeve (1) is provided with several arc-shaped concave portions (3). The arc-shaped concave portions (3) of the guide sleeve (1) are provided with a powder discharge port (4). The arc-shaped concave portions (3) of the guide sleeve (1) are provided with a rotatable first grinding roller (5). The outer ring of the first grinding roller (5) matches the arc-shaped concave portions (3). The outer side of the guide sleeve (1) is provided with a protective sleeve (6). The inner wall of the protective sleeve (6) and the outer wall of the guide sleeve (1) form a grinding discharge area. The inner wall of the protective sleeve (6) and the area within the grinding discharge area are fixed with a negative pressure component.

2. The device for reducing the heavy metal content of broken-cell wall Ganoderma lucidum spore powder according to claim 1, characterized in that: The top of the first grinding roller (5) is coaxially connected to a connecting rod (7), and the top of the connecting rod (7) is coaxially connected to a pulley (8). The number of pulleys (8) corresponds one-to-one with the number of the first grinding roller (5). Several pulleys (8) are connected to each other by a belt body (9). Any pulley (8) is coaxially connected to a third drive motor fixedly installed on a protective sleeve (6).

3. The device for reducing the heavy metal content of broken-cell wall Ganoderma lucidum spore powder according to claim 1, characterized in that: The material guide sleeve (1) is provided with a pressure reducing cone (10) inside.

4. The device for reducing the heavy metal content of broken-cell wall Ganoderma lucidum spore powder according to claim 3, characterized in that: The bottom of the pressure reducing cone (10) is provided with a second grinding roller (11), the outer ring of the second grinding roller (11) is matched with the inner ring of the guide sleeve (1), the inside of the guide sleeve (1) is provided with a second drive motor, and the output end of the second drive motor is coaxially connected to the bottom of the second grinding roller (11).

5. The device for reducing the heavy metal content of broken-cell wall Ganoderma lucidum spore powder according to claim 4, characterized in that: The outer surfaces of the first grinding roller (5) and the second grinding roller (11) are both provided with a nano-composite ceramic coating (12).

6. The device for reducing the heavy metal content of broken-cell wall Ganoderma lucidum spore powder according to claim 4, characterized in that: The first grinding roller (5) and the second grinding roller (11) are made of gradient functional metal matrix composite material.

7. The device for reducing the heavy metal content of broken-cell wall Ganoderma lucidum spore powder according to claim 4, characterized in that: The outer surfaces of the first grinding roller (5) and the second grinding roller (11) are provided with a mesh-like micro-wire mesh layer (13), and the interior of the micro-wire mesh layer (13) is provided with micro-pits (14).

8. A method for reducing the heavy metal content of broken-cell wall Ganoderma lucidum spore powder, based on the apparatus for reducing the heavy metal content of broken-cell wall Ganoderma lucidum spore powder according to any one of claims 1-7, characterized in that: The steps include: S1: Before the first extrusion of Ganoderma lucidum spore powder, micro-pits (14) are formed on the surface of the first grinding roller (5) and the second grinding roller (11) by laser micromachining technology to improve the crushing of spore powder; S2: Using the attraction created by the negative pressure component, the material is guided into the guide sleeve (1). During this process, gravity and negative pressure work together to make the material flow downward along the direction of gravity; gravity makes the material slide down smoothly. S3: Start the first drive motor and the second drive motor at the bottom of the first grinding roller (5) and the second grinding roller (11) respectively for continuous extrusion of cell wall broken spore powder.

9. The method for reducing the heavy metal content of broken-cell wall Ganoderma lucidum spore powder according to claim 8, characterized in that: In S1, the micro-pits (14) are 30 μm in diameter and 15 μm in depth, and are uniformly distributed in an array on the outer surfaces of the first grinding roller (5) and the second grinding roller (11).

10. The method for reducing the heavy metal content of broken-cell wall Ganoderma lucidum spore powder according to claim 8, characterized in that: In S4, the rotational speeds of the first grinding roller (5) and the second grinding roller (11) are 30-40 r / min and 20-25 r / min, respectively.

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