A device and method for sterilizing panax notoginseng powder

Abstract

The application discloses a kind of panax notoginseng powder sterilization device, including sterilization box and transmission component, the transmission component is arranged in the sterilization box, transmission component includes upper driving wheel and lower driven wheel, upper driving wheel and the lower driven wheel are connected by belt strip, belt strip is equipped with several support plates, the end of support plate is hinged with tray, tray and support plate are also equipped with lifting knock component between, lifting knock component is used to lift one side of tray, and make tray shake, facilitate the material in tray to pour out.The side of transmission component is sterilization area, the other side is flushing area;The ultraviolet sterilization lamp is arranged in the sterilization area, the flushing area is equipped with spray head and hot air spray head, the spray head is installed below the hot air spray head.The sterilization device in the application is fully automatic in the whole sterilization and cleaning process, does not need manual movement to transfer panax notoginseng powder tray, prevent tray from being contaminated by manual movement tray, use effect is very good.

Description

Technical Field

[0001] This invention relates to the field of sterilization equipment technology, and in particular to a sterilization device and method for Panax notoginseng powder. Background Technology

[0002] Panax notoginseng powder is a product made from the root and rhizome of the Panax notoginseng plant, specifically from the main root. It is also known as Tianqi powder or Jinbuhuan. It is warm in nature, sweet and slightly bitter in taste, and enters the liver, stomach, and large intestine meridians. It is sometimes called "Northern Ginseng, Southern Panax notoginseng." Ginseng is considered the best for replenishing Qi, while Panax notoginseng is considered the best for replenishing blood. Panax notoginseng has long been a highly regarded traditional Chinese medicine. However, improper sterilization and drying during long-term storage often leads to mold growth in large quantities of Panax notoginseng powder, severely affecting its medicinal value and lifespan. In severe cases, it can even endanger patients' health and cause safety accidents. As early as 1878, humans discovered that ultraviolet rays in sunlight have bactericidal and disinfecting effects. Drying clothes in daily life utilizes ultraviolet rays from natural light sources to achieve sterilization and disinfection. Ultraviolet disinfection is a physical disinfection method; it does not directly kill microorganisms but rather inactivates them by removing their reproductive capacity. The principle of ultraviolet disinfection is mainly to destroy the genetic material (DNA or RNA) of microorganisms with ultraviolet light, preventing them from dividing and replicating. In addition, ultraviolet rays can also cause damage to other structures of microorganisms. Therefore, ultraviolet lamps are often used for sterilization in sterilization devices.

[0003] Most sterilization devices on the market are sterilization chambers. When different batches of Panax notoginseng powder need to be sterilized, the trays that have been filled with the previous batch of Panax notoginseng powder need to be cleaned and dried manually before the next batch of Panax notoginseng powder is filled in. Each time a batch is changed, manual cleaning and drying are required, which is time-consuming and labor-intensive. In addition, the Panax notoginseng powder stuck to the trays is directly washed away, resulting in a waste of resources. Summary of the Invention

[0004] Therefore, the present invention provides a sterilization device for Panax notoginseng powder, including a sterilization chamber and a transmission assembly. The transmission assembly is disposed inside the sterilization chamber and includes an upper driving wheel and a lower driven wheel. The upper driving wheel is disposed above the lower driven wheel. The upper driving wheel is connected to a motor via a reducer, and the motor drives the upper driving wheel to rotate. The upper driving wheel and the lower driven wheel are connected by a belt, and the upper driving wheel drives the lower driven wheel to rotate via the belt, realizing the transmission via the belt. The belt is provided with several support plates, and a tray is hinged to the end of each support plate. A lifting and striking assembly is also provided between the tray and the support plates. The lifting and striking assembly includes two sets of first electrically controlled telescopic rods and two sets of second electrically controlled telescopic rods. The fixing cylinders of the first electrically controlled telescopic rod are respectively hinged to both sides of the support plate. The telescopic sections of the two sets of first electrically controlled telescopic rods are connected to rotating rods via bearings. A striking wheel is fixed on the rotating rod. The fixing cylinder of the second electrically controlled telescopic rod is fixed to the support plate. A sliding groove is machined on the fixing cylinder of the first electrically controlled telescopic rod. The telescopic section of the second electrically controlled telescopic rod is installed in the sliding groove, and the end of the telescopic section of the second electrically controlled telescopic rod can slide in the sliding groove. The striking wheel is provided with protrusions of different sizes. One side of the transmission assembly is a sterilization zone, and the other side is a rinsing zone. An ultraviolet sterilization lamp is provided in the sterilization zone, and a spray head and a hot air nozzle are provided in the rinsing zone. The spray head is installed below the hot air nozzle.

[0005] Furthermore, the tray includes a substrate and an antibacterial glaze layer, wherein the substrate is a lightweight ceramic material, and the substrate is prepared by the following method:

[0006] (1) Weigh the following components: clay, nano silica powder, modified cerium dioxide powder, magnesium oxide powder, titanium dioxide powder, potassium sodium sand and zirconium oxide powder. Mix the components evenly to form a mixed powder. Add the mixed powder to a ball mill jar, add deionized water and sodium tripolyphosphate for wet milling and mixing. Inject the wet-milled slurry into a mold to form the mixture.

[0007] (2) After molding, press the mold tightly, heat to 1250-1280℃, keep warm for 30-40 minutes, cool with the furnace to below 250℃ after the heat preservation is completed, and then air cool to room temperature. Open the mold to obtain the lightweight ceramic tray.

[0008] The preparation method of the nano-silica powder is as follows:

[0009] Step 1: Prepare an aqueous solution of hexadecyltrimethylammonium bromide and urea. Prepare a mixture of cyclohexane, ethylene glycol, n-butanol, and tetraethyl orthosilicate as mixture A. Add the aqueous solution of hexadecyltrimethylammonium bromide and urea to the reaction vessel, and then add mixture A to the aqueous solution of hexadecyltrimethylammonium bromide and urea. After the addition is complete, seal the reaction vessel, heat to 130±5℃, keep at this temperature for 4-5 hours, and then air cool to room temperature. Open the reaction vessel, separate the solid and liquid phases, wash the solid phase with ethanol, and dry it to obtain solid phase A.

[0010] Step 2: Calcining the solid phase A at 550±5℃ for 5-6 hours, and then air-cooling it to room temperature to obtain the nano-silica powder.

[0011] Furthermore, the method for preparing the modified cerium dioxide powder is as follows:

[0012] a. Prepare an ethanol solution of niobium pentachloride and iridium trichloride. Pass cerium dioxide powder through a 1500-mesh sieve. Immerse the sieved powder in the ethanol solution of niobium pentachloride and iridium trichloride, let it stand for 3-5 minutes, then remove it and dry it at 100°C. After drying, calcine it at 450°C for 15 minutes. After calcination, immerse it again in the ethanol solution of niobium pentachloride and iridium trichloride, let it stand for 3-5 minutes, remove it and dry it at 100°C, and calcine it at 450°C for 15 minutes. Repeat the above soaking, standing, drying and calcination process for a total of 8-10 sets. The last calcination is 1 hour, and then it is air-cooled to room temperature to obtain solid phase B.

[0013] b. Disperse the solid phase B in xylene to form a suspension, add γ-mercaptopropylmethoxysilane to the suspension, heat the water bath to 80±5℃ after the addition is completed, keep it at this temperature for 3-4 hours, stir the suspension during the heat preservation process, cool it to room temperature after the heat preservation is completed, separate the solid and liquid, wash the solid phase with ethanol, dry it, and obtain the modified cerium dioxide powder.

[0014] Further, the components are as follows by weight: 30-35 parts clay, 60-80 parts nano silica powder, 10-15 parts modified cerium dioxide powder, 2-5 parts magnesium oxide powder, 3-10 parts titanium dioxide powder, 5-8 parts potassium sodium sand, and 1-4 parts zirconium oxide powder.

[0015] Furthermore, the mass ratio of the balls in the wet milling mixture is: mixed powder: deionized water: balls: sodium tripolyphosphate = 10:5~7:15~18:0.04~0.05.

[0016] Further, in the aqueous solution of hexadecyltrimethylammonium bromide and urea, the concentration of hexadecyltrimethylammonium bromide is 2.5-3.2 g / 100 mL, the concentration of urea is 1.8-2.2 g / 100 mL, and the solvent is water; in the mixture A, the mass ratio of the mixture is cyclohexane: ethylene glycol: n-butanol: tetraethyl orthosilicate = 60-70:10-15:3-8:5-6; the mass ratio of the mixture A added to the aqueous solution of hexadecyltrimethylammonium bromide and urea is mixture A: aqueous solution of hexadecyltrimethylammonium bromide and urea = 1:5-6.

[0017] Furthermore, in the ethanol solution of niobium pentachloride and iridium trichloride, the concentration of niobium pentachloride is 10-15 g / 500 mL, the concentration of iridium trichloride is 30-37 g / 500 mL, and the solvent is ethanol.

[0018] Further, the solid-liquid mass ratio of the solid phase B dispersed in xylene is solid phase B / xylene = 2.6~3.8 g / 100 g; the mass ratio of the added γ-mercaptopropylmethoxysilane to the solid phase B is γ-mercaptopropylmethoxysilane: solid phase B = 1.3~1.8: 2.6~3.8.

[0019] Furthermore, the outside of the striking wheel is covered with a rubber layer.

[0020] The beneficial effects of this invention are as follows: the sterilization device of this invention completes the entire sterilization and cleaning process automatically, eliminating the need for manual movement of the trays containing Panax notoginseng powder, thus preventing contamination of the trays caused by manual movement, and resulting in excellent performance. Furthermore, improvements to the tray material increase the tray's lifespan and reduce maintenance frequency and costs. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the device described in this invention;

[0022] Figure 2 This is a structural diagram illustrating the tray installation relationship. Detailed Implementation

[0023] The present invention will be further described below with reference to the embodiments.

[0024] like Figures 1-2As shown, a sterilization device for Panax notoginseng powder includes a sterilization chamber 1 and a transmission assembly. The transmission assembly is disposed inside the sterilization chamber 1 and includes an upper driving wheel 2 and a lower driven wheel 3. The upper driving wheel 2 is disposed above the lower driven wheel 3. The upper driving wheel 2 is connected to a motor via a reducer, and the motor drives the upper driving wheel 2 to rotate. The upper driving wheel 2 and the lower driven wheel 3 are connected by a belt 4. The upper driving wheel 2 drives the lower driven wheel 3 to rotate via the belt 4, thereby realizing the transmission of the belt 4. The belt 4 is provided with several support plates 5, and a tray 6 is hinged to the end of each support plate 5. A lifting and striking assembly is also provided between the tray 6 and the support plate 5. The lifting and striking assembly includes two sets of first electrically controlled telescopic rods 7 and two sets of second electrically controlled telescopic rods 8. The fixing cylinders of the two sets of first electrically controlled telescopic rods 7 are respectively hinged to both sides of the support plate 5. The telescopic ends of the two sets of first electrically controlled telescopic rods 7 are connected to rotating rods 9 via bearings. A striking wheel 10 is fixedly mounted on the rotating rod 9. The fixing cylinders of the second electrically controlled telescopic rods 8 are fixed to the support plate 5. A sliding groove 11 is machined on the fixing cylinder of the first electrically controlled telescopic rod 7. The telescopic ends of the second electrically controlled telescopic rods 8 are installed in the sliding grooves 11, and the ends of the telescopic ends of the second electrically controlled telescopic rods 8 can slide within the sliding grooves 11. The striking wheel 10 is provided with protrusions 12 of different sizes. One side of the transmission assembly is a sterilization zone 13, and the other side is a rinsing zone 14. An ultraviolet sterilization lamp 15 is provided in the sterilization zone 13, and a spray head 16 and a hot air nozzle 17 are provided in the rinsing zone 14. The spray head 16 is installed below the hot air nozzle 17.

[0025] During use, turn on the ultraviolet sterilization lamp 15 and the hot air nozzle 17, and then start the motor to control the upper drive wheel 2 to rotate slowly. During the rotation of the upper drive wheel 2, the belt 4 is driven to start transmission, so that the tray 6 in the sterilization zone 13 moves from top to bottom, and the tray in the rinsing zone 14 moves from bottom to top. When the tray 6 moves to the top of the sterilization zone 13, add the Panax notoginseng powder to be sterilized into the tray. As the tray slowly moves down, the ultraviolet sterilization lamp 15 in the sterilization zone 13 sterilizes the Panax notoginseng powder. When the tray moves to the bottom of the sterilization zone, the second electrically controlled telescopic rod 8 is extended to tilt the tray 6, causing it to rotate and tilt along the hinge position, pouring the sterilized Panax notoginseng powder into the finished product box. Then, the first electrically controlled telescopic rod 7 is reciprocated by extending and retracting. During the extension and retraction of the first electrically controlled telescopic rod 7, the striking wheel 10 rolls at the bottom of the tray 6. Due to the action of the protrusions 12 of different sizes, the tray 6 is in a bumpy state, which facilitates the pouring out of the Panax notoginseng powder in the tray 6 and also facilitates the shaking off the Panax notoginseng powder adhering to the tray 6, preventing product waste. The striking wheel is covered with a rubber layer. As the belt 4 continues to slowly drive, the tray 6 after discharge passes around the bottom of the lower driven wheel 3 and enters the rinsing zone 14. When the tray passes around the lower driven wheel 3, gravity causes the tray 6 to rotate around the hinge and disengage from the striking wheel; the angle of rotation of the tray 6 is <90° to prevent the tray 6 from failing to return to the loading position. As the pallet enters the rinsing area 14 and moves upwards, it is first rinsed by the spray nozzles 16, then dried by the hot air nozzles 17, and finally passes over the upper drive wheel 2 for the next loading and sterilization. The entire sterilization and cleaning process is fully automated, eliminating the need for manual pallet movement and preventing contamination. The results are excellent.

[0026] Since the tray needs to rotate frequently during use, its weight cannot be too great, otherwise the hinges may be damaged, affecting the tray's lifespan. On the other hand, the tray needs to be made of non-toxic, UV-resistant material. Therefore, this application further optimizes the tray material. The tray includes a substrate 18 and an antibacterial glaze layer 19. To verify the performance of the substrate 18 material designed in this application, the following embodiments and comparative examples are provided:

[0027] Example 1

[0028] The substrate is a lightweight ceramic material, and the preparation method of the substrate is as follows:

[0029] (1) Weigh the following components: clay, nano silica powder, modified cerium dioxide powder, magnesium oxide powder, titanium dioxide powder, potassium sodium sand, and zirconium oxide powder. The components are weighed in the following proportions: 30 parts clay, 60 parts nano silica powder, 10 parts modified cerium dioxide powder, 2 parts magnesium oxide powder, 3 parts titanium dioxide powder, 5 parts potassium sodium sand, and 1 part zirconium oxide powder. Mix the components evenly to form a mixed powder. Add the mixed powder to a ball mill jar, add deionized water and sodium tripolyphosphate for wet milling. Pour the wet-milled slurry into a mold for molding. The ball-to-material mass ratio of the wet-milled mixture is mixed powder: deionized water: balls: sodium tripolyphosphate = 10:6:16:0.04.

[0030] (2) After molding, press the mold tightly, heat to 1250℃, keep warm for 40 minutes, cool with the furnace to below 250℃ after the heat preservation is completed, and then air cool to room temperature. Open the mold to obtain the lightweight ceramic tray.

[0031] The preparation method of the nano-silica powder is as follows:

[0032] Step 1: Prepare an aqueous solution of hexadecyltrimethylammonium bromide and urea. Prepare a mixture of cyclohexane, ethylene glycol, n-butanol, and tetraethyl orthosilicate as mixture A. In the aqueous solution of hexadecyltrimethylammonium bromide and urea, the concentration of hexadecyltrimethylammonium bromide is 2.5 g / 100 mL, the concentration of urea is 1.8 g / 100 mL, and the solvent is water. In mixture A, the mass ratio of the mixture is cyclohexane:ethylene glycol:n-butanol:tetraethyl orthosilicate = 60:10:3:5. The hexadecyltrimethylammonium bromide... An aqueous solution of ammonium bromide and urea was added to a reaction vessel. Then, mixture A was added to the aqueous solution of hexadecyltrimethylammonium bromide and urea. The mass ratio of mixture A to the aqueous solution of hexadecyltrimethylammonium bromide and urea was 1:5. After the addition was completed, the reaction vessel was sealed, heated to 130±5℃, and kept at that temperature for 4 hours. Then, it was cooled to room temperature. The reaction vessel was opened, and the solid and liquid phases were separated. The solid phase was washed with ethanol and dried to obtain solid phase A.

[0033] Step 2: Calcining the solid phase A at 550±5℃ for 5 hours, and then air-cooling it to room temperature to obtain the nano-silica powder.

[0034] The method for preparing the modified cerium dioxide powder is as follows:

[0035] a. Prepare an ethanol solution of niobium pentachloride and iridium trichloride, wherein the concentration of niobium pentachloride in the ethanol solution is 10 g / 500 mL and the concentration of iridium trichloride is 30 g / 500 mL, and the solvent is ethanol; pass cerium dioxide powder through a 1500-mesh sieve, immerse the sieved powder in the ethanol solution of niobium pentachloride and iridium trichloride, let it stand for 3 min, then take it out and dry it at 100°C, calcine it at 450°C for 15 min after drying, immerse it again in the ethanol solution of niobium pentachloride and iridium trichloride, let it stand for 3 min, take it out and dry it at 100°C, calcine it at 450°C for 15 min, repeat the above soaking, standing, drying and calcining process for a total of 9 sets, the last calcination is 1 h, and then air-cooled to room temperature to obtain solid phase B;

[0036] b. Disperse the solid phase B in xylene to form a suspension, with a solid-liquid mass ratio of solid phase B to xylene of 3 g / 100 g; add γ-mercaptopropylmethoxysilane to the suspension, with a mass ratio of γ-mercaptopropylmethoxysilane to solid phase B of 1.3:3; after addition, heat the solution in a water bath to 80±5℃ and maintain the temperature for 3 hours, stirring the suspension during the heat treatment. After the heat treatment is completed, cool the solution to room temperature, separate the solid and liquid phases, wash the solid phase with ethanol, and dry it to obtain the modified cerium dioxide powder.

[0037] Example 2

[0038] The substrate is a lightweight ceramic material, and the preparation method of the substrate is as follows:

[0039] (1) Weigh the following components: clay, nano-silica powder, modified cerium dioxide powder, magnesium oxide powder, titanium dioxide powder, potassium sodium sand, and zirconium oxide powder. The components are weighed in the following proportions: 32 parts clay, 68 parts nano-silica powder, 12 parts modified cerium dioxide powder, 3 parts magnesium oxide powder, 5 parts titanium dioxide powder, 6 parts potassium sodium sand, and 2 parts zirconium oxide powder. Mix the components evenly to form a mixed powder. Add the mixed powder to a ball mill jar, add deionized water and sodium tripolyphosphate for wet milling. Pour the wet-milled slurry into a mold for molding. The ball-to-material mass ratio of the wet-milled mixture is mixed powder: deionized water: balls: sodium tripolyphosphate = 10:6:16:0.04.

[0040] (2) After molding, press the mold tightly, heat to 1260℃, keep warm for 40 minutes, cool with the furnace to below 250℃ after the heat preservation is completed, and then air cool to room temperature. Open the mold to obtain the lightweight ceramic tray.

[0041] The preparation method of the nano-silica powder is as follows:

[0042] Step 1: Prepare an aqueous solution of hexadecyltrimethylammonium bromide and urea. Prepare a mixture of cyclohexane, ethylene glycol, n-butanol, and tetraethyl orthosilicate as mixture A. In the aqueous solution of hexadecyltrimethylammonium bromide and urea, the concentration of hexadecyltrimethylammonium bromide is 2.8 g / 100 mL, the concentration of urea is 2 g / 100 mL, and the solvent is water. In mixture A, the mass ratio of the mixture is cyclohexane:ethylene glycol:n-butanol:tetraethyl orthosilicate = 64:12:5:5. The hexadecyltrimethylammonium bromide... An aqueous solution of ammonium bromide and urea is added to a reaction vessel. Then, mixture A is added to the aqueous solution of hexadecyltrimethylammonium bromide and urea. The mass ratio of mixture A to the aqueous solution of hexadecyltrimethylammonium bromide and urea is 1:5. After the addition is completed, the reaction vessel is sealed, heated to 130±5℃, and kept at that temperature for 4 hours. Then, it is cooled to room temperature. The reaction vessel is opened, and the solid and liquid phases are separated. The solid phase is washed with ethanol and dried to obtain solid phase A.

[0043] Step 2: Calcining the solid phase A at 550±5℃ for 5 hours, and then air-cooling it to room temperature to obtain the nano-silica powder.

[0044] The method for preparing the modified cerium dioxide powder is as follows:

[0045] a. Prepare an ethanol solution of niobium pentachloride and iridium trichloride, wherein the concentration of niobium pentachloride in the ethanol solution is 12 g / 500 mL and the concentration of iridium trichloride is 33 g / 500 mL, and the solvent is ethanol; pass cerium dioxide powder through a 1500-mesh sieve, immerse the sieved powder in the ethanol solution of niobium pentachloride and iridium trichloride, let it stand for 3 min, then take it out and dry it at 100°C, calcine it at 450°C for 15 min after drying, immerse it again in the ethanol solution of niobium pentachloride and iridium trichloride, let it stand for 3 min, take it out and dry it at 100°C, calcine it at 450°C for 15 min, repeat the above soaking, standing, drying and calcining process for a total of 9 sets, the last calcination is 1 h, and then air-cooled to room temperature to obtain solid phase B;

[0046] b. Disperse the solid phase B in xylene to form a suspension, with a solid-liquid mass ratio of solid phase B to xylene of 3 g / 100 g; add γ-mercaptopropylmethoxysilane to the suspension, with a mass ratio of γ-mercaptopropylmethoxysilane to solid phase B of 1.5:3; after addition, heat the solution in a water bath to 80±5℃ and maintain the temperature for 3 hours, stirring the suspension during the heat treatment process; after the heat treatment is completed, cool the solution to room temperature, separate the solid and liquid phases, wash the solid phase with ethanol, and dry it to obtain the modified cerium dioxide powder.

[0047] Example 3

[0048] The substrate is a lightweight ceramic material, and the preparation method of the substrate is as follows:

[0049] (1) Weigh the following components: clay, nano silica powder, modified cerium dioxide powder, magnesium oxide powder, titanium dioxide powder, potassium sodium sand, and zirconium oxide powder. The weight parts of each component are: 34 parts clay, 74 parts nano silica powder, 13 parts modified cerium dioxide powder, 4 parts magnesium oxide powder, 8 parts titanium dioxide powder, 7 parts potassium sodium sand, and 3 parts zirconium oxide powder. Mix the components evenly to form a mixed powder. Add the mixed powder to a ball mill jar, add deionized water and sodium tripolyphosphate for wet milling. Pour the wet-milled slurry into a mold for molding. The ball-to-material mass ratio of the wet-milled mixture is mixed powder: deionized water: balls: sodium tripolyphosphate = 10:6:16:0.04.

[0050] (2) After molding, press the mold tightly, heat to 1270℃, keep warm for 30 minutes, cool with the furnace to below 250℃ after the heat preservation is completed, then air cool to room temperature, open the mold, and obtain the lightweight ceramic tray.

[0051] The preparation method of the nano-silica powder is as follows:

[0052] Step 1: Prepare an aqueous solution of hexadecyltrimethylammonium bromide and urea. Prepare a mixture of cyclohexane, ethylene glycol, n-butanol, and tetraethyl orthosilicate as mixture A. In the aqueous solution of hexadecyltrimethylammonium bromide and urea, the concentration of hexadecyltrimethylammonium bromide is 3 g / 100 mL, the concentration of urea is 2 g / 100 mL, and the solvent is water. In mixture A, the mass ratio of the mixture is cyclohexane:ethylene glycol:n-butanol:tetraethyl orthosilicate = 68:14:6:6. The hexadecyltrimethylammonium bromide... An aqueous solution of ammonium and urea is added to a reaction vessel. Then, mixture A is added to the aqueous solution of hexadecyltrimethylammonium bromide and urea. The mass ratio of mixture A to the aqueous solution of hexadecyltrimethylammonium bromide and urea is 1:5. After the addition is completed, the reaction vessel is sealed, heated to 130±5℃, and kept at that temperature for 4 hours. Then, it is cooled to room temperature. The reaction vessel is opened, and the solid and liquid phases are separated. The solid phase is washed with ethanol and dried to obtain solid phase A.

[0053] Step 2: Calcining the solid phase A at 550±5℃ for 5 hours, and then air-cooling it to room temperature to obtain the nano-silica powder.

[0054] The method for preparing the modified cerium dioxide powder is as follows:

[0055] a. Prepare an ethanol solution of niobium pentachloride and iridium trichloride, wherein the concentration of niobium pentachloride in the ethanol solution is 14 g / 500 mL and the concentration of iridium trichloride is 35 g / 500 mL, and the solvent is ethanol; pass cerium dioxide powder through a 1500-mesh sieve, immerse the sieved powder in the ethanol solution of niobium pentachloride and iridium trichloride, let it stand for 3 min, then take it out and dry it at 100°C, calcine it at 450°C for 15 min after drying, immerse it again in the ethanol solution of niobium pentachloride and iridium trichloride, let it stand for 3 min, take it out and dry it at 100°C, calcine it at 450°C for 15 min, repeat the above soaking, standing, drying and calcining process for a total of 9 sets, the last calcination is 1 h, and then air-cooled to room temperature to obtain solid phase B;

[0056] b. Disperse the solid phase B in xylene to form a suspension, with a solid-liquid mass ratio of solid phase B to xylene of 3 g / 100 g; add γ-mercaptopropylmethoxysilane to the suspension, with a mass ratio of γ-mercaptopropylmethoxysilane to solid phase B of 1.6:3; after addition, heat the solution in a water bath to 80±5℃ and maintain the temperature for 3 hours, stirring the suspension during the heat treatment process; after the heat treatment is completed, cool the solution to room temperature, separate the solid and liquid phases, wash the solid phase with ethanol, and dry it to obtain the modified cerium dioxide powder.

[0057] Example 4

[0058] The substrate is a lightweight ceramic material, and the preparation method of the substrate is as follows:

[0059] (1) Weigh the following components: clay, nano silica powder, modified cerium dioxide powder, magnesium oxide powder, titanium dioxide powder, potassium sodium sand, and zirconium oxide powder. The weight parts of each component are: 35 parts clay, 80 parts nano silica powder, 15 parts modified cerium dioxide powder, 5 parts magnesium oxide powder, 10 parts titanium dioxide powder, 8 parts potassium sodium sand, and 4 parts zirconium oxide powder. Mix the components evenly to form a mixed powder. Add the mixed powder to a ball mill jar, add deionized water and sodium tripolyphosphate for wet milling. Pour the wet-milled slurry into a mold for molding. The ball-to-material mass ratio of the wet-milled mixture is mixed powder: deionized water: balls: sodium tripolyphosphate = 10:6:16:0.04.

[0060] (2) After molding, press the mold tightly, heat to 1280℃, keep warm for 30 minutes, cool with the furnace to below 250℃ after the heat preservation is completed, and then air cool to room temperature. Open the mold to obtain the lightweight ceramic tray.

[0061] The preparation method of the nano-silica powder is as follows:

[0062] Step 1: Prepare an aqueous solution of hexadecyltrimethylammonium bromide and urea. Prepare a mixture of cyclohexane, ethylene glycol, n-butanol, and tetraethyl orthosilicate as mixture A. In the aqueous solution of hexadecyltrimethylammonium bromide and urea, the concentration of hexadecyltrimethylammonium bromide is 3.2 g / 100 mL, the concentration of urea is 2.2 g / 100 mL, and the solvent is water. In mixture A, the mass ratio of the mixture is cyclohexane:ethylene glycol:n-butanol:tetraethyl orthosilicate = 70:15:8:6. [The remaining text appears to be incomplete and requires further context.] An aqueous solution of ammonium bromide and urea was added to a reaction vessel. Then, mixture A was added to the aqueous solution of hexadecyltrimethylammonium bromide and urea. The mass ratio of mixture A to the aqueous solution of hexadecyltrimethylammonium bromide and urea was 1:5. After the addition was completed, the reaction vessel was sealed, heated to 130±5℃, and kept at that temperature for 4 hours. Then, it was cooled to room temperature. The reaction vessel was opened, and the solid and liquid phases were separated. The solid phase was washed with ethanol and dried to obtain solid phase A.

[0063] Step 2: Calcining the solid phase A at 550±5℃ for 5 hours, and then air-cooling it to room temperature to obtain the nano-silica powder.

[0064] The method for preparing the modified cerium dioxide powder is as follows:

[0065] a. Prepare an ethanol solution of niobium pentachloride and iridium trichloride, wherein the concentration of niobium pentachloride in the ethanol solution is 15 g / 500 mL and the concentration of iridium trichloride is 37 g / 500 mL, and the solvent is ethanol; pass cerium dioxide powder through a 1500-mesh sieve, immerse the sieved powder in the ethanol solution of niobium pentachloride and iridium trichloride, let it stand for 3 min, then take it out and dry it at 100°C, calcine it at 450°C for 15 min after drying, immerse it again in the ethanol solution of niobium pentachloride and iridium trichloride, let it stand for 3 min, take it out and dry it at 100°C, calcine it at 450°C for 15 min, repeat the above soaking, standing, drying and calcining process for a total of 9 sets, the last calcination is 1 h, and then air-cooled to room temperature to obtain solid phase B;

[0066] b. Disperse the solid phase B in xylene to form a suspension, with a solid-liquid mass ratio of solid phase B to xylene of 3 g / 100 g; add γ-mercaptopropylmethoxysilane to the suspension, with a mass ratio of γ-mercaptopropylmethoxysilane to solid phase B of 1.8:3; after addition, heat the solution in a water bath to 80±5℃ and maintain the temperature for 3 hours, stirring the suspension during the heat treatment process; after the heat treatment is completed, cool the solution to room temperature, separate the solid and liquid phases, wash the solid phase with ethanol, and dry it to obtain the modified cerium dioxide powder.

[0067] Comparative Example 1

[0068] The substrate is a lightweight ceramic material, and the preparation method of the substrate is as follows:

[0069] (1) Weigh the following components: clay, nano silica powder, cerium dioxide powder (passed through a 1500-mesh sieve), magnesium oxide powder, titanium dioxide powder, potassium sodium sand, and zirconium oxide powder. The weight parts of each component are: 34 parts clay, 74 parts nano silica powder, 13 parts cerium dioxide powder, 4 parts magnesium oxide powder, 8 parts titanium dioxide powder, 7 parts potassium sodium sand, and 3 parts zirconium oxide powder. Mix the components evenly to form a mixed powder. Add the mixed powder to a ball mill jar, add deionized water and sodium tripolyphosphate for wet milling. Pour the wet-milled slurry into a mold for molding. The ball-to-material mass ratio of the wet-milled mixture is mixed powder: deionized water: balls: sodium tripolyphosphate = 10:6:16:0.04.

[0070] (2) After molding, press the mold tightly, heat to 1270℃, keep warm for 30 minutes, cool with the furnace to below 250℃ after the heat preservation is completed, then air cool to room temperature, open the mold, and obtain the lightweight ceramic tray.

[0071] The preparation method of the nano-silica powder is as follows:

[0072] Step 1: Prepare an aqueous solution of hexadecyltrimethylammonium bromide and urea. Prepare a mixture of cyclohexane, ethylene glycol, n-butanol, and tetraethyl orthosilicate as mixture A. In the aqueous solution of hexadecyltrimethylammonium bromide and urea, the concentration of hexadecyltrimethylammonium bromide is 3 g / 100 mL, the concentration of urea is 2 g / 100 mL, and the solvent is water. In mixture A, the mass ratio of the mixture is cyclohexane:ethylene glycol:n-butanol:tetraethyl orthosilicate = 68:14:6:6. The hexadecyltrimethylammonium bromide... An aqueous solution of ammonium and urea is added to a reaction vessel. Then, mixture A is added to the aqueous solution of hexadecyltrimethylammonium bromide and urea. The mass ratio of mixture A to the aqueous solution of hexadecyltrimethylammonium bromide and urea is 1:5. After the addition is completed, the reaction vessel is sealed, heated to 130±5℃, and kept at that temperature for 4 hours. Then, it is cooled to room temperature. The reaction vessel is opened, and the solid and liquid phases are separated. The solid phase is washed with ethanol and dried to obtain solid phase A.

[0073] Step 2: Calcining the solid phase A at 550±5℃ for 5 hours, and then air-cooling it to room temperature to obtain the nano-silica powder.

[0074] Comparative Example 2

[0075] The substrate is a lightweight ceramic material, and the preparation method of the substrate is as follows:

[0076] (1) Weigh the following components: clay, nano silica powder, modified cerium dioxide powder, magnesium oxide powder, titanium dioxide powder, potassium sodium sand, and zirconium oxide powder. The weight parts of each component are: 34 parts clay, 74 parts nano silica powder, 13 parts modified cerium dioxide powder, 4 parts magnesium oxide powder, 8 parts titanium dioxide powder, 7 parts potassium sodium sand, and 3 parts zirconium oxide powder. Mix the components evenly to form a mixed powder. Add the mixed powder to a ball mill jar, add deionized water and sodium tripolyphosphate for wet milling. Pour the wet-milled slurry into a mold for molding. The ball-to-material mass ratio of the wet-milled mixture is mixed powder: deionized water: balls: sodium tripolyphosphate = 10:6:16:0.04.

[0077] (2) After molding, press the mold tightly, heat to 1270℃, keep warm for 30 minutes, cool with the furnace to below 250℃ after the heat preservation is completed, then air cool to room temperature, open the mold, and obtain the lightweight ceramic tray.

[0078] The preparation method of the nano-silica powder is as follows:

[0079] Step 1: Prepare an aqueous solution of hexadecyltrimethylammonium bromide and urea. Prepare a mixture of cyclohexane, ethylene glycol, n-butanol, and tetraethyl orthosilicate as mixture A. In the aqueous solution of hexadecyltrimethylammonium bromide and urea, the concentration of hexadecyltrimethylammonium bromide is 3 g / 100 mL, the concentration of urea is 2 g / 100 mL, and the solvent is water. In mixture A, the mass ratio of the mixture is cyclohexane:ethylene glycol:n-butanol:tetraethyl orthosilicate = 68:14:6:6. The hexadecyltrimethylammonium bromide... An aqueous solution of ammonium and urea is added to a reaction vessel. Then, mixture A is added to the aqueous solution of hexadecyltrimethylammonium bromide and urea. The mass ratio of mixture A to the aqueous solution of hexadecyltrimethylammonium bromide and urea is 1:5. After the addition is completed, the reaction vessel is sealed, heated to 130±5℃, and kept at that temperature for 4 hours. Then, it is cooled to room temperature. The reaction vessel is opened, and the solid and liquid phases are separated. The solid phase is washed with ethanol and dried to obtain solid phase A.

[0080] Step 2: Calcining the solid phase A at 550±5℃ for 5 hours, and then air-cooling it to room temperature to obtain the nano-silica powder.

[0081] The method for preparing the modified cerium dioxide powder is as follows:

[0082] a. Pass cerium dioxide powder through a 1500-mesh sieve to obtain the sieved powder as solid phase B;

[0083] b. Disperse the solid phase B in xylene to form a suspension, with a solid-liquid mass ratio of solid phase B to xylene of 3 g / 100 g; add γ-mercaptopropylmethoxysilane to the suspension, with a mass ratio of γ-mercaptopropylmethoxysilane to solid phase B of 1.6:3; after addition, heat the solution in a water bath to 80±5℃ and maintain the temperature for 3 hours, stirring the suspension during the heat treatment process; after the heat treatment is completed, cool the solution to room temperature, separate the solid and liquid phases, wash the solid phase with ethanol, and dry it to obtain the modified cerium dioxide powder.

[0084] Comparative Example 3

[0085] The substrate is a lightweight ceramic material, and the preparation method of the substrate is as follows:

[0086] (1) Weigh the following components: clay, nano silica powder, modified cerium dioxide powder, magnesium oxide powder, titanium dioxide powder, potassium sodium sand, and zirconium oxide powder. The weight parts of each component are: 34 parts clay, 74 parts nano silica powder, 13 parts modified cerium dioxide powder, 4 parts magnesium oxide powder, 8 parts titanium dioxide powder, 7 parts potassium sodium sand, and 3 parts zirconium oxide powder. Mix the components evenly to form a mixed powder. Add the mixed powder to a ball mill jar, add deionized water and sodium tripolyphosphate for wet milling. Pour the wet-milled slurry into a mold for molding. The ball-to-material mass ratio of the wet-milled mixture is mixed powder: deionized water: balls: sodium tripolyphosphate = 10:6:16:0.04.

[0087] (2) After molding, press the mold tightly, heat to 1270℃, keep warm for 30 minutes, cool with the furnace to below 250℃ after the heat preservation is completed, then air cool to room temperature, open the mold, and obtain the lightweight ceramic tray.

[0088] The preparation method of the nano-silica powder is as follows:

[0089] Step 1: Prepare an aqueous solution of hexadecyltrimethylammonium bromide and urea. Prepare a mixture of cyclohexane, ethylene glycol, n-butanol, and tetraethyl orthosilicate as mixture A. In the aqueous solution of hexadecyltrimethylammonium bromide and urea, the concentration of hexadecyltrimethylammonium bromide is 3 g / 100 mL, the concentration of urea is 2 g / 100 mL, and the solvent is water. In mixture A, the mass ratio of the mixture is cyclohexane:ethylene glycol:n-butanol:tetraethyl orthosilicate = 68:14:6:6. The hexadecyltrimethylammonium bromide... An aqueous solution of ammonium and urea is added to a reaction vessel. Then, mixture A is added to the aqueous solution of hexadecyltrimethylammonium bromide and urea. The mass ratio of mixture A to the aqueous solution of hexadecyltrimethylammonium bromide and urea is 1:5. After the addition is completed, the reaction vessel is sealed, heated to 130±5℃, and kept at that temperature for 4 hours. Then, it is cooled to room temperature. The reaction vessel is opened, and the solid and liquid phases are separated. The solid phase is washed with ethanol and dried to obtain solid phase A.

[0090] Step 2: Calcining the solid phase A at 550±5℃ for 5 hours, and then air-cooling it to room temperature to obtain the nano-silica powder.

[0091] The method for preparing the modified cerium dioxide powder is as follows:

[0092] a. Prepare an ethanol solution of niobium pentachloride, wherein the concentration of niobium pentachloride in the ethanol solution is 14 g / 500 mL, and the solvent is ethanol; pass cerium dioxide powder through a 1500-mesh sieve, immerse the sieved powder in the ethanol solution of niobium pentachloride, let it stand for 3 min, then take it out and dry it at 100°C, calcine it at 450°C for 15 min after drying, immerse it again in the ethanol solution of niobium pentachloride, let it stand for 3 min, take it out and dry it at 100°C, calcine it at 450°C for 15 min, repeat the above soaking, standing, drying, and calcination process for a total of 9 sets, and finally calcine it for 1 h, and then air cool it to room temperature to obtain solid phase B;

[0093] b. Disperse the solid phase B in xylene to form a suspension, with a solid-liquid mass ratio of solid phase B to xylene of 3 g / 100 g; add γ-mercaptopropylmethoxysilane to the suspension, with a mass ratio of γ-mercaptopropylmethoxysilane to solid phase B of 1.6:3; after addition, heat the solution in a water bath to 80±5℃ and maintain the temperature for 3 hours, stirring the suspension during the heat treatment process; after the heat treatment is completed, cool the solution to room temperature, separate the solid and liquid phases, wash the solid phase with ethanol, and dry it to obtain the modified cerium dioxide powder.

[0094] Comparative Example 4

[0095] The substrate is a lightweight ceramic material, and the preparation method of the substrate is as follows:

[0096] (1) Weigh the following components: clay, nano silica powder, modified cerium dioxide powder, magnesium oxide powder, titanium dioxide powder, potassium sodium sand, and zirconium oxide powder. The weight parts of each component are: 34 parts clay, 74 parts nano silica powder, 13 parts modified cerium dioxide powder, 4 parts magnesium oxide powder, 8 parts titanium dioxide powder, 7 parts potassium sodium sand, and 3 parts zirconium oxide powder. Mix the components evenly to form a mixed powder. Add the mixed powder to a ball mill jar, add deionized water and sodium tripolyphosphate for wet milling. Pour the wet-milled slurry into a mold for molding. The ball-to-material mass ratio of the wet-milled mixture is mixed powder: deionized water: balls: sodium tripolyphosphate = 10:6:16:0.04.

[0097] (2) After molding, press the mold tightly, heat to 1270℃, keep warm for 30 minutes, cool with the furnace to below 250℃ after the heat preservation is completed, then air cool to room temperature, open the mold, and obtain the lightweight ceramic tray.

[0098] The preparation method of the nano-silica powder is as follows:

[0099] Step 1: Prepare an aqueous solution of hexadecyltrimethylammonium bromide and urea. Prepare a mixture of cyclohexane, ethylene glycol, n-butanol, and tetraethyl orthosilicate as mixture A. In the aqueous solution of hexadecyltrimethylammonium bromide and urea, the concentration of hexadecyltrimethylammonium bromide is 3 g / 100 mL, the concentration of urea is 2 g / 100 mL, and the solvent is water. In mixture A, the mass ratio of the mixture is cyclohexane:ethylene glycol:n-butanol:tetraethyl orthosilicate = 68:14:6:6. The hexadecyltrimethylammonium bromide... An aqueous solution of ammonium and urea is added to a reaction vessel. Then, mixture A is added to the aqueous solution of hexadecyltrimethylammonium bromide and urea. The mass ratio of mixture A to the aqueous solution of hexadecyltrimethylammonium bromide and urea is 1:5. After the addition is completed, the reaction vessel is sealed, heated to 130±5℃, and kept at that temperature for 4 hours. Then, it is cooled to room temperature. The reaction vessel is opened, and the solid and liquid phases are separated. The solid phase is washed with ethanol and dried to obtain solid phase A.

[0100] Step 2: Calcining the solid phase A at 550±5℃ for 5 hours, and then air-cooling it to room temperature to obtain the nano-silica powder.

[0101] The method for preparing the modified cerium dioxide powder is as follows:

[0102] a. Prepare an ethanol solution of iridium trichloride, wherein the concentration of iridium trichloride in the ethanol solution is 35 g / 500 mL, and the solvent is ethanol; pass cerium dioxide powder through a 1500-mesh sieve, immerse the sieved powder in the ethanol solution of iridium trichloride, let it stand for 3 min, then take it out and dry it at 100°C, calcine it at 450°C for 15 min after drying, immerse it again in the ethanol solution of iridium trichloride, let it stand for 3 min, take it out and dry it at 100°C, calcine it at 450°C for 15 min, repeat the above soaking, standing, drying, and calcination process for a total of 9 sets, and finally calcine it for 1 h, and then air cool it to room temperature to obtain solid phase B;

[0103] b. Disperse the solid phase B in xylene to form a suspension, with a solid-liquid mass ratio of solid phase B to xylene of 3 g / 100 g; add γ-mercaptopropylmethoxysilane to the suspension, with a mass ratio of γ-mercaptopropylmethoxysilane to solid phase B of 1.6:3; after addition, heat the solution in a water bath to 80±5℃ and maintain the temperature for 3 hours, stirring the suspension during the heat treatment process; after the heat treatment is completed, cool the solution to room temperature, separate the solid and liquid phases, wash the solid phase with ethanol, and dry it to obtain the modified cerium dioxide powder.

[0104] Comparative Example 5

[0105] The substrate is a lightweight ceramic material, and the preparation method of the substrate is as follows:

[0106] (1) Weigh the following components: clay, nano silica powder, modified cerium dioxide powder, magnesium oxide powder, titanium dioxide powder, potassium sodium sand, and zirconium oxide powder. The weight parts of each component are: 34 parts clay, 74 parts nano silica powder, 13 parts modified cerium dioxide powder, 4 parts magnesium oxide powder, 8 parts titanium dioxide powder, 7 parts potassium sodium sand, and 3 parts zirconium oxide powder. Mix the components evenly to form a mixed powder. Add the mixed powder to a ball mill jar, add deionized water and sodium tripolyphosphate for wet milling. Pour the wet-milled slurry into a mold for molding. The ball-to-material mass ratio of the wet-milled mixture is mixed powder: deionized water: balls: sodium tripolyphosphate = 10:6:16:0.04.

[0107] (2) After molding, press the mold tightly, heat to 1270℃, keep warm for 30 minutes, cool with the furnace to below 250℃ after the heat preservation is completed, then air cool to room temperature, open the mold, and obtain the lightweight ceramic tray.

[0108] The preparation method of the nano-silica powder is as follows:

[0109] Step 1: Prepare an aqueous solution of hexadecyltrimethylammonium bromide and urea. Prepare a mixture of cyclohexane, ethylene glycol, n-butanol, and tetraethyl orthosilicate as mixture A. In the aqueous solution of hexadecyltrimethylammonium bromide and urea, the concentration of hexadecyltrimethylammonium bromide is 3 g / 100 mL, the concentration of urea is 2 g / 100 mL, and the solvent is water. In mixture A, the mass ratio of the mixture is cyclohexane:ethylene glycol:n-butanol:tetraethyl orthosilicate = 68:14:6:6. The hexadecyltrimethylammonium bromide... An aqueous solution of ammonium and urea is added to a reaction vessel. Then, mixture A is added to the aqueous solution of hexadecyltrimethylammonium bromide and urea. The mass ratio of mixture A to the aqueous solution of hexadecyltrimethylammonium bromide and urea is 1:5. After the addition is completed, the reaction vessel is sealed, heated to 130±5℃, and kept at that temperature for 4 hours. Then, it is cooled to room temperature. The reaction vessel is opened, and the solid and liquid phases are separated. The solid phase is washed with ethanol and dried to obtain solid phase A.

[0110] Step 2: Calcining the solid phase A at 550±5℃ for 5 hours, and then air-cooling it to room temperature to obtain the nano-silica powder.

[0111] The modified cerium dioxide powder is prepared as follows: An ethanol solution of niobium pentachloride and iridium trichloride is prepared, wherein the concentration of niobium pentachloride is 14 g / 500 mL and the concentration of iridium trichloride is 35 g / 500 mL, and ethanol is used as the solvent; cerium dioxide powder is passed through a 1500-mesh sieve, and the sieved powder is immersed in the ethanol solution of niobium pentachloride and iridium trichloride, allowed to stand for 3 minutes, then removed and dried at 100°C, followed by calcination at 450°C for 15 minutes. After calcination, the powder is immersed again in the ethanol solution of niobium pentachloride and iridium trichloride, allowed to stand for 3 minutes, removed and dried at 100°C, and calcined at 450°C for 15 minutes. This process of immersion, standing, drying, and calcination is repeated for a total of 9 sets. The final calcination lasts for 1 hour, and then the powder is air-cooled to room temperature to obtain the modified cerium dioxide powder of this comparative example.

[0112] Example 5

[0113] The flexural strength of the matrices prepared by the methods described in the above embodiments and comparative examples was tested using a universal testing machine, and the results are shown in Table 1.

[0114] As shown in Table 1, the matrix prepared by the method of the present invention has good mechanical strength and high flexural strength. When used in the device described in the present invention, it can significantly increase the service life of the tray and reduce the frequency of equipment maintenance and repair. Comparing Example 3 and the comparative examples, it can be seen that modifying cerium dioxide powder and adding it to the matrix raw material components can significantly improve the mechanical properties of the matrix. This may be because the modification process can improve the dispersibility of cerium dioxide in the matrix and the adhesion strength between cerium dioxide and other matrix components, thereby reducing defects such as microcracks in the matrix and thus improving the matrix strength.

[0115] Table 1

[0116]

[0117]

[0118] The technical solutions provided by the present invention have been described in detail above. For those skilled in the art, there will be changes in specific implementation methods and application scope based on the ideas of the embodiments of the present invention. Therefore, the content of this specification should not be construed as a limitation of the present invention.

Claims

1. A sterilization device for Panax notoginseng powder, characterized in that, The system includes a sterilization chamber and a transmission assembly. The transmission assembly is located inside the sterilization chamber and includes an upper driving wheel and a lower driven wheel. The upper driving wheel is positioned above the lower driven wheel and is connected to a motor via a reducer. The motor drives the upper driving wheel to rotate. The upper driving wheel and the lower driven wheel are connected by a belt, and the upper driving wheel drives the lower driven wheel to rotate via the belt, thus achieving belt transmission. Several support plates are provided on the belt, and a tray is hinged to the end of each support plate. A lifting and striking assembly is provided between the tray and the support plates. The lifting and striking assembly includes two sets of first electrically controlled telescopic rods and two sets of second electrically controlled telescopic rods. The fixing cylinders of the two sets of first electrically controlled telescopic rods are respectively hinged to... On both sides of the support plate, the ends of the telescopic sections of the two sets of first electrically controlled telescopic rods are connected to rotating rods via bearings. A striking wheel is fixedly mounted on the rotating rod. The fixing cylinder of the second electrically controlled telescopic rod is fixed to the support plate. A sliding groove is machined on the fixing cylinder of the first electrically controlled telescopic rod. The telescopic section of the second electrically controlled telescopic rod is installed in the sliding groove, and the end of the telescopic section of the second electrically controlled telescopic rod can slide within the sliding groove. The striking wheel has protrusions of different sizes. The side of the transmission assembly facing the ultraviolet sterilization lamp is the sterilization zone, and the other side facing the spray head and hot air nozzle is the rinsing zone. The sterilization zone is equipped with an ultraviolet sterilization lamp, and the rinsing zone is equipped with a spray head and a hot air nozzle. The spray head is installed below the hot air nozzle.

2. The Panax notoginseng powder sterilization device according to claim 1, characterized in that, The tray comprises a substrate and an antibacterial glaze layer. The substrate is a lightweight ceramic material, and the substrate is prepared by the following method: (1) Weigh the following components: clay, nano silica powder, modified cerium dioxide powder, magnesium oxide powder, titanium dioxide powder, potassium sodium sand and zirconium oxide powder. Mix the components evenly to form a mixed powder. Add the mixed powder to a ball mill jar, add deionized water and sodium tripolyphosphate for wet milling and mixing. Pour the wet-milled slurry into a mold to form the mixture. (2) After molding, press the mold tightly, heat to 1250~1280℃, keep warm for 30~40min, cool with the furnace to below 250℃ after the heat preservation is completed, and then air cool to room temperature. Open the mold to obtain the lightweight ceramic tray. The preparation method of the nano-silica powder is as follows: Step 1: Prepare an aqueous solution of hexadecyltrimethylammonium bromide and urea. Prepare a mixture of cyclohexane, ethylene glycol, n-butanol, and tetraethyl orthosilicate as mixture A. Add the aqueous solution of hexadecyltrimethylammonium bromide and urea to the reaction vessel, and then add mixture A to the aqueous solution of hexadecyltrimethylammonium bromide and urea. After the addition is complete, seal the reaction vessel, heat to 130±5℃, keep at this temperature for 4-5 hours, and then air cool to room temperature. Open the reaction vessel, separate the solid and liquid phases, wash the solid phase with ethanol, and dry it to obtain solid phase A. Step 2: Calcining the solid phase A at 550±5℃ for 5-6 hours, and then air-cooling it to room temperature to obtain the nano-silica powder.

3. The Panax notoginseng powder sterilization device according to claim 2, characterized in that, The method for preparing the modified cerium dioxide powder is as follows: a. Prepare an ethanol solution of niobium pentachloride and iridium trichloride. Pass cerium dioxide powder through a 1500-mesh sieve. Immerse the sieved powder in the ethanol solution of niobium pentachloride and iridium trichloride, let it stand for 3-5 minutes, then remove it and dry it at 100°C. After drying, calcine it at 450°C for 15 minutes. After calcination, immerse it again in the ethanol solution of niobium pentachloride and iridium trichloride, let it stand for 3-5 minutes, remove it and dry it at 100°C, and calcine it at 450°C for 15 minutes. Repeat the above soaking, standing, drying and calcination process for a total of 8-10 sets. The last calcination is 1 hour, and then it is air-cooled to room temperature to obtain solid phase B. b. Disperse the solid phase B in xylene to form a suspension, add γ-mercaptopropylmethoxysilane to the suspension, heat the water bath to 80±5℃ after the addition is completed, keep it at this temperature for 3-4 hours, stir the suspension during the heat preservation process, cool it to room temperature after the heat preservation is completed, separate the solid and liquid, wash the solid phase with ethanol, dry it, and obtain the modified cerium dioxide powder.

4. The Panax notoginseng powder sterilization device according to claim 3, characterized in that, The components described herein are in the following weight parts: 30-35 parts clay, 60-80 parts nano silica powder, 10-15 parts modified cerium dioxide powder, 2-5 parts magnesium oxide powder, 3-10 parts titanium dioxide powder, 5-8 parts potassium sodium sand, and 1-4 parts zirconium oxide powder.

5. The Panax notoginseng powder sterilization device according to claim 3, characterized in that, The mass ratio of the wet-milled mixture to the ball is: mixed powder: deionized water: balls: sodium tripolyphosphate = 10:5~7:15~18:0.04~0.

05.

6. The Panax notoginseng powder sterilization device according to claim 3, characterized in that, In the aqueous solution of hexadecyltrimethylammonium bromide and urea, the concentration of hexadecyltrimethylammonium bromide is 2.5-3.2 g / 100 mL, the concentration of urea is 1.8-2.2 g / 100 mL, and the solvent is water; in the mixture A, the mass ratio of the mixture is cyclohexane: ethylene glycol: n-butanol: tetraethyl orthosilicate = 60-70: 10-15: 3-8: 5-6; the mass ratio of the mixture A added to the aqueous solution of hexadecyltrimethylammonium bromide and urea is 1: 5-6.

7. The Panax notoginseng powder sterilization device according to claim 3, characterized in that, In the ethanol solution of niobium pentachloride and iridium trichloride, the concentration of niobium pentachloride is 10-15 g / 500 mL, the concentration of iridium trichloride is 30-37 g / 500 mL, and the solvent is ethanol.

8. The Panax notoginseng powder sterilization device according to claim 3, characterized in that, The solid-liquid mass ratio of solid phase B dispersed in xylene is solid phase B / xylene = 2.6-3.8 g / 100 g; the mass ratio of the added γ-mercaptopropylmethoxysilane to solid phase B is γ-mercaptopropylmethoxysilane: solid phase B = 1.3-1.8: 2.6-3.

8.

9. A sterilization device for Panax notoginseng powder according to claim 3, characterized in that, The striking wheel is covered with a rubber layer.

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