A high-speed centrifugal atomizer and drying tower for traditional Chinese medicine extracts

Abstract

The present application discloses a high-speed centrifugal atomizer and drying tower for Chinese medicine extract, which relates to the technical field of spray drying equipment, wherein the high-speed centrifugal atomizer includes: a motor; a connecting rod, which is installed at the end of the motor rotating shaft and has a channel inside; a bearing seat, which is installed at the end of the motor; an air intake plate, which is installed on the bearing seat; a hot air pipe, which is used to provide hot air to the first side hole; an atomizing disk, which is installed at the end of the connecting rod and has an atomizing cavity inside, and a plurality of atomizing holes are opened on the circumferential outer wall; a liquid material disk, which is installed at the end of the air intake plate and is connected with a liquid material pipe, which is used to provide liquid medicine to the atomizing cavity; a lower arc shell, which is buckled and installed on the inner bottom wall of the atomizing disk, and forms a heating cavity between the lower arc shell and the inner bottom wall of the atomizing disk, and the hot air in the channel of the connecting rod heats the heating cavity. The present application has the effect of reducing the blockage of the atomizing disk and improving the atomization effect when performing atomization drying of viscous and high-sugar liquids, and reducing the adhesion and accumulation of liquid medicine on the inner wall of the drying tower.

Description

Technical Field

[0001] The present application relates to the technical field of spray drying equipment, and in particular to a high-speed centrifugal atomizer and a drying tower for traditional Chinese medicine extracts. Background Art

[0002] The viscosity of the hypoglycemic compound extract is high, which is reflected in the high sugar content. During the spray drying process in the drying tower, the following problems are likely to occur:

[0003] 1. The hypoglycemic compound extract has a high viscosity and easily sticks to the inner wall of the drying tower after being sprayed. Furthermore, the extract has a high sugar content and easily melts under the high temperature of the drying tower, causing the extract to stick to the inner wall of the drying tower and accumulate, resulting in a reduced yield.

[0004] 2. Due to the high viscosity of the hypoglycemic complex extract, the atomizing nozzle is more prone to clogging and mucus accumulation, and the frequency of inspection and maintenance increases.

[0005] There are several technical difficulties:

[0006] 1. To reduce spray adhesion to the inner wall of the drying tower, it is necessary not only to reduce the spray particle size but also to find a way to quickly dry the spray before it contacts the inner wall of the drying tower. Rapid drying requires increasing the temperature, but this increases the probability of the powdered sugar melting, further causing adhesion. 2. Reducing the spray particle size cannot be achieved by simply increasing pressure. This will not only result in uneven spray particle size, but also cause the spray to adhere to the inner wall of the nozzle cover, and the problem of nozzle clogging will not be solved. Summary of the Invention

[0007] In order to improve the defects of hypoglycemic complex extract, which is prone to atomizer clogging and accumulation of liquid medicine on the inner wall of the drying tower during the atomization drying process due to its high viscosity and sugar content, the present application provides a high-speed centrifugal atomizer and drying tower for Chinese medicine extract.

[0008] The present application provides a high-speed centrifugal atomizer for Chinese medicine extracts using the following technical solutions:

[0009] A high-speed centrifugal atomizer for Chinese medicine extract, comprising

[0010] Motor;

[0011] The connecting rod is mounted on the end of the motor rotating shaft, and has a first side hole and a second side hole on its side wall, wherein the first side hole is closer to the motor, and has a connecting hole inside to connect the first side hole and the second side hole;

[0012] The bearing seat is installed at the end of the motor, and the inner ring is installed on the motor rotating shaft;

[0013] An air intake disc is mounted on the bearing seat, and an air intake ring cavity is formed on the circumferential inner wall facing the first side hole;

[0014] A hot air pipe is connected to the air inlet ring cavity, and the other end is connected to a hot air device for providing hot air;

[0015] The liquid material tray is installed at the end of the air inlet tray, with a liquid material cavity inside and a discharge ring hole at the bottom;

[0016] a liquid material pipe, connected to the liquid material cavity;

[0017] The atomizing disc is mounted on the end of the connecting rod, with an atomizing cavity inside and multiple atomizing holes on the circumferential outer wall. It is rotatably connected to the end of the liquid material disc, and a feed ring hole is opened on the top to communicate with the discharge ring hole.

[0018] The lower arc shell is buckled and installed on the inner bottom wall of the atomizing disk to form a heating chamber between the lower arc shell and the inner bottom wall of the atomizing disk. The inner bottom wall of the atomizing disk is provided with a heating hole that connects the heating chamber with the second side hole. The bottom of the atomizing disk is provided with an exhaust hole that connects with the heating chamber.

[0019] By adopting the above technical solution, the medicine liquid flows into the liquid material cavity in the liquid material disk through the liquid material pipe, and flows into the atomization cavity through the feed ring hole and the feed ring hole. The hot air pipe sends hot air into the air inlet ring cavity of the air inlet disk. The hot air enters the connecting hole through the first side hole and is blown into the heating cavity through the second side hole to heat the lower arc shell. When the motor drives the atomizing disk to rotate at high speed, the medicine liquid falls into the lower arc shell and forms a liquid film. During this process, since the lower arc shell is in a heated state, part of the medicine liquid will not adhere to and solidify on the lower arc shell due to heat absorption during the contact between the medicine liquid and the lower arc shell, reducing the accumulation of the medicine liquid on the lower arc shell, thereby maintaining the centrifugal diffusion effect of the liquid film formed by the curvature of the lower arc shell, improving the long-term atomization effect and capacity of the atomizing disk, making the medicine liquid particles atomized by the atomizing disk smaller, and reducing the probability of the atomizing disk being blocked and the spray sticking and accumulating on the inner wall of the drying tower.

[0020] Optionally, the discharge ring hole portion at the bottom of the liquid material tray protrudes into the feed ring hole, which not only improves the stability of the high-speed rotation of the atomizing disk, but also effectively reduces the leakage of the liquid medicine.

[0021] Optionally, a one-way ring membrane is fixedly provided at the bottom of the feeding ring hole, and the two one-way ring membranes are arranged to be tilted downward and the bottom ends thereof abut against each other, thereby reducing the probability of the liquid medicine sprayed from the feeding ring hole leaking from the feeding ring hole.

[0022] Optionally, a ventilation channel is opened in the liquid material tray, and the end of the ventilation channel is connected to the air inlet ring hole and is located outside the discharge ring hole;

[0023] The front end of the ventilation channel is connected with a ventilation pipe, and the ventilation pipe is connected with the nitrogen tank.

[0024] In this way, the relationship between the liquid material disk and the atomizing disk is utilized to provide nitrogen to the atomizing disk, thereby discharging the air in the atomizing chamber and reducing the probability of sugar in the liquid medicine in the atomizing chamber being oxidized. This not only reduces the probability of atomizing disk clogging, but also improves the atomization effect of the atomizing disk, thereby improving the medicinal quality of the dry powder of the hypoglycemic complex extract.

[0025] Optionally, the atomizing disk includes a top shell and a base, the base is sleeved and mounted on the connecting rod, the upper surface of the base is a concave conical surface, and the lower arc shell is mounted on the arc conical surface of the base;

[0026] The top shell is installed on the base, and the atomization hole and the feed ring hole are both located on the top shell.

[0027] In this way, the atomizing disc can be detachably installed, and the atomizing chamber can be easily maintained and cleaned.

[0028] Optionally, an inner ring shell is inserted into the circumferential inner wall of the top shell, and the cavity formed between the inner ring shell and the circumferential inner wall of the top shell is the auxiliary heating cavity. The lower arc shell is provided with a fixing hole for connecting the heating cavity and the auxiliary heating cavity.

[0029] An atomizing tube is embedded in the atomizing hole of the inner ring shell. The atomizing tube is embedded in the atomizing hole. The inside of the atomizing tube is hollow and communicated with the auxiliary heating cavity.

[0030] On the basis of the detachable installation of the atomizer disk, the structure of the lower arc shell is used to realize the installation of the inner ring shell and the atomizer tube, and the hot air in the heating chamber is used to heat the inner ring shell and the atomizer tube, thereby reducing the adhesion of the hypoglycemic complex extract on the inner ring shell and the atomizer tube, improving the atomization effect and reducing the probability of clogging of the atomizer disk.

[0031] Optionally, the atomizing tube includes an inner tube and an outer tube, the outer tube is embedded in the atomizing hole, the edge portion of one end of the outer tube close to the atomizing cavity is buckled on the circumferential inner wall of the top shell, and the end of the outer tube away from the atomizing cavity is folded inward to form a buckled tube;

[0032] The outer cylinder is inserted into the inner ring shell and buckled on the inner ring shell. The outer cylinder is detachably mounted on the inner ring shell, and the end of the outer cylinder is tightly pressed against the end of the buckling cylinder.

[0033] The detachable design of the atomizer tube can not only effectively form a hollow structure of the atomizer tube, but also realize the fastening of the outer tube by installing the inner tube and the outer tube separately.

[0034] Optionally, a downward blowing hole is provided at the top of the end of the outer barrel away from the atomizing chamber, and the air blown out of the downward blowing hole is inclined downward. The provision of the downward blowing hole not only increases the flow rate of hot air into the atomizing barrel, thereby improving the heating effect of the atomizing barrel, but also applies downward pressure to the liquid spray sprayed from the atomizing barrel through the downward blowing air, thereby reducing the probability of the spray spray landing on the inner wall of the drying tower.

[0035] The present application provides a drying tower comprising the following technical solutions:

[0036] A drying tower, comprising the above-mentioned high-speed centrifugal atomizer, further comprising

[0037] Tower body, high-speed centrifugal atomizer is installed on the top of the tower body;

[0038] The hot air distributor is installed on the top of the tower body, and the high-speed centrifugal atomizer is placed inside it. The air outlet is located above the atomizing disk. There are multiple air plates in the air duct inside the hot air distributor, and the bottoms of the air plates are all tilted in the same rotation direction.

[0039] The part of the hot air distributor located in the tower body is divided into an inner shell and an outer shell, wherein the inner shell and the outer shell are connected by an air plate, the inner shell is pressed against the high-speed centrifugal atomizer, the bottom of the outer shell is higher than the bottom of the inner shell, so that the air plate leaks out, the bottom of the inner shell is raised, and the upper surface of the raised part of the inner shell forms an inclined surface inclined away from the high-speed centrifugal atomizer.

[0040] The spirally distributed heat distribution formed by the hot air distributor can more effectively dry and powder the spray sprayed from the atomizing disk. The length setting of the outer shell and the convex setting at the bottom of the inner shell can effectively improve the diffusion effect of the wind at the air outlet of the hot air distributor, thereby improving the efficiency of drying the drug spray and reducing the probability of the drug spray falling on the inner wall of the drying tower.

[0041] Optionally, the hot air device includes a heat exchange shell and a heating wire;

[0042] The heat exchange shell is fixed to the top of the hot air distributor. A spiral partition is installed inside the inner cavity to form a spiral space. The heating wire is installed inside the heat exchange shell. The heat exchange shell inlet is connected to the blower, and the heat exchange shell outlet is connected to the hot air pipe. The position of the heat exchange shell and the internal partition arrangement effectively utilize the heat of the hot air distributor shell to heat the air, reducing energy consumption of the heating wire and improving heat utilization efficiency.

[0043] In summary, this application includes at least one of the following beneficial technical effects:

[0044] 1. Utilizing the positional relationship of the connecting rods, the structural design and atomizing disk design are implemented. By adding an air inlet disk to the existing centrifugal atomizer, hot air is directed into the heating chamber of the atomizing disk to heat the lower arc shell. This reduces heat loss of the hypoglycemic complex extract on the lower arc shell, reduces adhesion and solidification of the hypoglycemic complex extract on the lower arc shell, and improves the stability of the liquid film formed on the lower arc shell, thereby improving the atomization effect of the atomizing disk and reducing clogging of the atomizing disk.

[0045] 2. By utilizing the disassembly structure of the atomizing disk in conjunction with the lower arc shell to achieve installation of the inner ring shell and the atomizing barrel, and achieving heating of the inner ring shell and the atomizing barrel, the adhesion and accumulation of the hypoglycemic complex extract on the inner ring shell and the atomizing barrel are effectively reduced, and the fluidity of the hypoglycemic complex extract on the inner ring shell and the atomizing barrel is improved, thereby reducing the probability of clogging of the atomizing disk and improving the atomization effect. By improving the atomization effect, the adhesion and accumulation of the hypoglycemic complex extract on the inner wall of the drying tower are reduced;

[0046] 3. Taking advantage of the position of the liquid material tray, a ventilation channel is provided to fill the atomization chamber with nitrogen, thereby reducing the probability of the hypoglycemic complex extract being heated and oxidized in the atomization tray, improving the medicinal properties of the hypoglycemic complex extract after atomization, and reducing the probability of the hypoglycemic complex extract being oxidized in the atomization tray and causing a decrease in fluidity;

[0047] 4. The heat exchange shell can effectively utilize the spiral structure formed by the internal partition to exchange heat between the air and the hot air distributor shell, effectively improving the heat utilization efficiency and reducing energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Figure 1 It is a structural diagram of an embodiment of the present application;

[0049] Figure 2 It is a cross-sectional view showing the interior of the hot air distributor after the tower body is hidden;

[0050] Figure 3 is a cross-sectional view showing the air outlet of the hot air distributor;

[0051] Figure 4 is a cross-sectional view showing a hot air device;

[0052] Figure 5 It is a partial cross-sectional view showing the installation position of the high-speed centrifugal atomizer;

[0053] Figure 6 It is a partial cross-sectional view showing the internal structure of a high-speed centrifugal atomizer;

[0054] Figure 7 is a partial cross-sectional view showing a ventilation channel;

[0055] Figure 8 It is a partial cross-sectional exploded view showing the atomizing disk;

[0056] Figure 9 It is a partial cross-sectional exploded view showing the atomizing tube;

[0057] Figure 10 It is a partial sectional exploded view showing how the connecting rod is installed.

[0058] In the picture:

[0059] 1. Motor; 11. Insertion hole; 12. Snap ring; 13. Clamp; 14. Bearing seat;

[0060] 2. Connecting rod; 21. Insertion block; 22. First side hole; 23. Second side hole; 24. Connecting hole;

[0061] 3. Air intake disc; 31. Air intake ring cavity; 32. Hot air pipe;

[0062] 4. Liquid material tray; 41. Liquid material cavity; 42. Feeding ring hole; 421. One-way ring membrane; 43. Liquid material pipe; 44. Ventilation channel; 441. Ventilation pipe;

[0063] 5. Atomizing disk; 51. Top shell; 511. Atomizing hole; 512. Feeding ring hole; 513. Inner ring shell; 5131. Auxiliary heating chamber; 514. Atomizing chamber; 52. Base; 521. Lower arc shell; 5211. Heating chamber; 5212. Fixing hole; 522. Heating hole; 523. Exhaust hole;

[0064] 6. Hot air device; 61. Heat exchange shell; 62. Heating wire;

[0065] 7. Tower body;

[0066] 8. Hot air distributor; 81. Air plate; 82. Inner shell; 83. Outer shell;

[0067] 9. Atomizing tube; 91. Inner tube; 92. Outer tube; 921. Snap-fit ​​tube; 922. Lower blowing hole. DETAILED DESCRIPTION

[0068] The following is combined with Figure 1-10 This application is described in further detail.

[0069] The embodiments of the present application disclose a high-speed centrifugal atomizer and a drying tower for traditional Chinese medicine extracts.

[0070] refer to Figure 1The drying tower includes a tower body 7, a hot air distributor 8, a hot air device 6 and a high-speed centrifugal atomizer. The hot air distributor 8 is installed in the middle position of the top of the tower body 7, and the bottom extends into the tower body 7, which is used to send heated air into the tower body 7. The temperature of the hot air distributor 8 sent into the tower body 7 is in the range of 160-180°C, and the temperature set in this embodiment is 160°C. The high-speed centrifugal atomizer is also installed in the middle position of the top of the tower body 7, specifically in the middle of the hot air distributor 8, and is sleeved by the hot air distributor 8. The atomizing part at the bottom end of the high-speed centrifugal atomizer extends from the bottom of the hot air distributor 8 and is located in the tower body 7. The hot air device 6 is arranged at the top of the hot air distributor 8 to provide hot air for the centrifugal atomizer. The hot air provided is in the range of 40-50°C, and is 45°C in this embodiment.

[0071] refer to Figure 1 and Figure 2 The air inlet of the hot air distributor 8 is located at the top and is connected to the hot air duct that transports the heated air, and the hot air is sent into the hot air distributor 8. A plurality of air plates 81 are provided in the internal air duct of the hot air distributor 8, and the bottoms of the air plates 81 are all inclined in the same direction of rotation. The part of the hot air distributor 8 located in the tower body 7 is divided into an inner shell 82 and an outer shell 83. Among them: the inner shell 82 and the outer shell 83 are connected by the air plate 81; the inner shell 82 is tightly pressed against the high-speed centrifugal atomizer; the bottom of the outer shell 83 is higher than the bottom of the inner shell 82, so that the air plate 81 leaks out.

[0072] Combine Figure 3 The bottom of the inner shell 82 is provided with a convex portion, and the upper surface of the convex portion of the inner shell 82 forms an inclined surface inclined in a direction away from the high-speed centrifugal atomizer.

[0073] The air blown out of the hot air distributor 8 is spiral-shaped, which, together with the height difference between the bottoms of the inner and outer shells 82, 83, improves the diffusivity of the blown hot air. The raised portion at the bottom of the inner shell 82 also serves as a drainage device, and together with the height difference between the bottoms of the inner and outer shells 82, 83, further enhances the diffusion of the hot air. This increases the area over which the hot air directly interacts with the spray from the high-speed centrifugal atomizer, imparting a greater downward force to the spray, improving the spray drying effect and reducing the chance of spray accumulation on the inner wall of the drying tower.

[0074] refer to Figure 4 and Figure 5, the hot air device 6 can be directly a blower with a heating function. In this embodiment, the hot air device 6 has a heat exchange function, including a heat exchange shell 61 and a heating wire 62. The heat exchange shell 61 is fixed on the top of the hot air distributor 8, and a spiral partition is provided inside to form a spiral space inside. The heating wire 62 is mounted in the heat exchange shell 61, and the inlet of the heat exchange shell 61 is connected to the blower. The air entering the heat exchange shell 61 flows from the outside to the inside along a spiral trajectory, and the outlet of the heat exchange shell 61 is on the inside of the heat exchange shell 61. Since the heat exchange shell 61 is buckled on the hot air distributor 8, the heat on the outer shell of the hot air distributor 8 will exchange heat with the air blown into the heat exchange shell 61, while playing a heat preservation effect and improving the heat utilization rate.

[0075] refer to Figure 5 and Figure 6 The high-speed centrifugal atomizer includes a motor 1, a connecting rod 2, an air intake disc 3, a liquid material disc 4 and an atomizing disc 5. The motor 1 is installed in the middle position at the top of the hot air distributor 8. The rotating shaft of the motor 1 is set downward and installed with the connecting rod 2, and the rotating shaft of the motor 1 and the connecting rod 2 are coaxially arranged. A bearing seat 14 is installed at the bottom of the motor 1, and the inner ring of the bearing of the bearing seat 14 is installed with the rotating shaft of the motor 1 to improve the stability of the rotation of the rotating shaft of the motor 1. The air intake disc 3 is installed at the bottom end of the bearing seat 14, the liquid material disc 4 is installed at the bottom end of the air intake disc 3, and the atomizing disc 5 is fixedly installed at the bottom end of the connecting rod 2.

[0076] The air inlet disc 3 provides hot air. A channel is defined within the connecting rod 2 for conveying this hot air from the air inlet disc 3 into the atomizing disc 5, heating its surface. The liquid material disc 4 is used to pump a liquid, such as the hypoglycemic complex extract, into the atomizing disc 5 at high pressure. The atomizing disc 5 then atomizes and sprays the liquid. The addition of the air inlet disc 3 and the internal channel of the connecting rod 2 heat the surface of the atomizing disc 5, thereby reducing heat dissipation within the atomizing disc 5 and maintaining good fluidity. This improves atomization and reduces the likelihood of the hypoglycemic complex extract clogging the atomizing disc 5.

[0077] refer to Figure 6 and Figure 7, an atomizing cavity 514 is provided inside the atomizing disk 5, a plurality of atomizing holes 511 are provided on the circumferential outer wall, a feed ring hole 512 is provided at the top center position of the atomizing disk 5, and the bottom of the circumferential inner wall of the feed ring hole 512 is expanded and transitionally arranged. A liquid cavity 41 is provided inside the liquid material disk 4, and a discharge ring hole 42 is provided at the bottom of the liquid material disk 4 to connect the feed ring hole 512 with the liquid material cavity 41. The discharge ring hole 42 at the bottom of the liquid material disk 4 is partially raised and extends into the feed ring hole 512. A one-way ring membrane 42 is fixed at the bottom of the discharge ring hole 42, and the two one-way ring membranes 421 are tilted downward and the bottom ends abut against each other. When liquid is introduced into the liquid material disk 4, the pressure is sufficient to push open the one-way ring membrane 421, and the one-way ring membrane 421 is made of rubber. The liquid material tray 4 is connected to a liquid material pipe 43 that is connected to the liquid inlet cavity. The other end of the liquid material pipe 43 is connected to the discharge port of a tank body containing a liquid such as a hypoglycemic complex extract. A ventilation channel 44 is provided in the liquid material tray 4, and the ventilation channel 44 is distributed below the liquid inlet cavity. The end of the ventilation channel 44 is connected to the air inlet annular hole and is located outside the discharge annular hole 42. The end of the ventilation channel 44 is tilted and faces the expanded diameter portion of the feed annular hole 512. The front end of the ventilation channel 44 is connected to a ventilation pipe 441, and the ventilation pipe 441 is connected to the nitrogen tank.

[0078] The liquid material pipe 43 pressurizes the hypoglycemic compound extract and other liquids through the pump at the tank discharge port and then pumps them into the liquid material chamber 41. After opening the one-way ring membrane 421 through the discharge ring hole 42, the liquid enters the feed ring hole 512 and then flows into the atomization chamber 514. Finally, the atomization disk 5 is atomized and sprayed through the atomization hole 511 by the high-speed rotating atomization disk 5. The raised setting at the bottom of the liquid material disk 4 can effectively reduce the leakage of the liquid material in the liquid material disk 4. The setting of the one-way ring membrane 421 can control the flow direction of the liquid entering the atomization chamber 514, making the liquid flow direction in the atomization disk 5 more regular, reducing the leakage of the liquid, and improving the atomization effect. The position of the liquid material disk 4 is also effectively utilized to design the ventilation channel 44, providing nitrogen protection for the atomization chamber 514, thereby reducing the probability of the hypoglycemic compound extract and other liquids with high sugar content being oxidized in the atomization chamber 514 and causing the fluidity to deteriorate, while also improving the protection of the medicinal properties. The inclined arrangement of the end of the ventilation channel 44 can effectively utilize the enlarged diameter portion at the bottom of the feed ring hole 512 to reduce interference with the flow direction of the liquid in the atomization chamber 514 .

[0079] refer to Figure 5 and Figure 6The air intake disk 3 defines an air intake annular cavity 31, to which a hot air pipe 32 is connected. One end of the hot air pipe 32 communicates with the air intake annular cavity 31, and the other end communicates with the outlet of the heat exchange shell 61. The passageway within the connecting rod 2 includes a first side hole 22, a second side hole 23, and a connecting hole 24. Three first side holes 22 are located at the top of the circumferential side wall of the connecting rod 2, equidistantly spaced about the central axis of the connecting rod 2. The first side holes 22 are arranged downwardly, tilted from outside to inside, and communicate with the air intake annular cavity 31.

[0080] Three second side holes 23 are provided at the bottom of the circumferential outer wall of connecting rod 2, equidistantly spaced about the central axis of connecting rod 2. The second side holes 23 are arranged upwardly and tilted from the outside to the inside. A connecting hole 24 is provided in the middle of connecting rod 2, connecting the first side hole 22 with the second side hole 23.

[0081] refer to Figure 7 and Figure 8 The atomizing disk 5 comprises a top shell 51 and a base 52. The base 52 is fixedly mounted on the bottom of the connecting rod 2 and is fastened to the connecting rod 2 by bolts. The base 52 cannot rotate relative to the connecting rod 2. The upper surface of the base 52 is a concave conical surface. The top shell 51 is fastened to the upper surface of the base 52 by multiple bolts, covering the base 52. The feed ring hole 512 and the atomizing hole 511 are both located on the top shell 51.

[0082] A lower arc shell 521 is fastened to the upper surface of the base 52, and the top of the lower arc shell 521 is opposite to the blanking ring hole 42. After the base 52 and the top shell 51 are installed, the bottom end of the top shell 51 will be pressed tightly against the edge of the lower arc shell 521. A cavity is left between the lower arc shell 521 and the upper surface of the base 52, which is the heating chamber 5211. The base 52 is provided with a heating hole 522 that connects the heating chamber 5211 with the second side hole 23. An inner ring shell 513 is inserted into the circumferential inner wall of the top shell 51, and a cavity is formed between the inner ring shell 513 and the circumferential inner wall of the top shell 51, which is the auxiliary heating chamber 5131. After the top shell 51 and the bottom plate are installed, the lower arc shell 521 will be pressed tightly against the bottom of the inner ring shell 513.

[0083] Combine Figure 9 The upper surface of the lower arc shell 521 is provided with a fixing hole 5212 that connects the auxiliary heating chamber 5131 with the heating chamber 5211. The edge of the fixing hole 5212 is protruding and inserted into the inner ring shell 513. The atomizer tube 9 is embedded and installed in the position of the inner ring shell 513 opposite the atomizer hole 511. The atomizer tube 9 is inserted into the atomizer hole 511. The interior of the atomizer tube 9 is hollow and connected to the auxiliary heating chamber 5131. The atomizer tube 9, the inner ring shell 513, and the lower arc shell 521 are all made of metal, copper in this embodiment.

[0084] refer to Figure 8 and Figure 9, the atomizing tube 9 includes an inner tube 91 and an outer tube 92. The outer tube 92 is embedded in the atomizing hole 511, and the edge portion of one end of the outer tube 92 close to the atomizing chamber 514 is buckled on the circumferential inner wall of the top shell 51. The end of the outer tube 92 away from the atomizing chamber 514 transitions inward and folds to form a snap-fit ​​tube 921. The outer tube 92 is inserted into the inner ring shell 513 and buckled on the inner ring shell 513. The outer tube 92 is detachably mounted on the inner ring shell 513. The detachable mounting method of the outer tube 92 can be fixed with the inner ring shell 513 by interference fit. In this embodiment, it is fixed with the outer ring shell by threaded connection. After the outer tube 92 is installed with the inner ring shell 513, the end of the outer tube 92 is tightly buckled with the end of the snap-fit ​​tube 921. A lower blowing hole 922 is provided at the top of the end of the outer tube 92 away from the atomizing chamber 514, and the air blown out of the lower blowing hole 922 is tilted downward. An exhaust hole 523 communicating with the heating chamber 5211 is defined at the bottom of the atomizing disk 5 .

[0085] The hot air pipe 32 delivers the hot air from the hot air device 6 into the air inlet annular cavity 31. The hot air in the air inlet annular cavity 31 then flows sequentially through the first side hole 22, the connecting hole 24, the second side hole 23, and the heating hole 522 into the heating cavity 5211. The hot air in the heating cavity 5211 also flows into the auxiliary heating cavity 5131 and the atomizer tube 9, thereby heating the lower arc shell 521, the inner annular shell 513, and the atomizer tube 9, effectively utilizing the structure of the connecting rod 2. The curvature of the lower arc shell 521 is parallel to the conical surface of the upper surface of the base 52, which enhances the liquid film formed by the liquid entering the atomizer disk 5, thereby improving the atomization effect. Heating the lower arc shell 521 reduces the heat absorption of the hypoglycemic complex extract by the lower arc shell 521, reduces the adhesion of the hypoglycemic complex extract to the lower arc shell 521, and improves the fluidity of the hypoglycemic complex extract on the lower arc shell 521, thereby enhancing the liquid film formed on the lower arc shell 521. The heating setting of the atomizing tube 9 and the inner ring shell 513 can also effectively reduce the adhesion of the hypoglycemic complex extract on the surface, improve the fluidity of the hypoglycemic complex extract on the surface, thereby improving the atomization effect and reducing the probability of clogging of the atomizing disk 5.

[0086] Among them, the detachable setting of the atomizer disk 5 not only facilitates the cleaning and maintenance of the atomizer chamber 514, but also enables the installation and disassembly of the lower arc shell 521, the inner ring shell 513 and the atomizer tube 9, and can also achieve stable installation of the inner ring shell 513 and the lower arc shell 521 through the installation of the top shell 51 and the base 52.

[0087] The detachable configuration of the atomizing tube 9 not only utilizes the separate structure of the inner tube 91 and the outer tube 92 to form a cavity inside the atomizing tube 9 and connect the cavity with the auxiliary heating chamber 5131, but also utilizes the inner annular shell 513 to facilitate installation of the inner tube 91 and to securely engage and press the inner tube 91 with the outer tube 92. The atomizing tube 9 also utilizes the downward blowing hole 922 for exhausting hot air to blow the spray sprayed from the atomizing hole 511 downward, reducing the probability of the atomized spray landing on the inner wall of the drying tower and accumulating.

[0088] refer to Figure 10 The bottom end of the rotating shaft of the motor 1 is provided with an insertion hole 11 with a regular hexagonal cross-section, and the top end of the connecting rod 2 is fixed with an insertion block 21. The insertion block 21 can be inserted into the insertion hole 11 and fits with the insertion hole 11, thereby limiting the mutual rotation of the rotating shaft of the motor 1 and the connecting rod 2. A retaining ring 12 is fixed at the bottom of the rotating shaft of the motor 1 and the top of the connecting rod 2, and the ends of the two retaining rings 12 abut against each other. A set of clamps 13 are fastened to the outer walls of the two retaining rings 12 to fasten the two retaining rings 12, and the clamps 13 are fastened by bolts. The clamp 13 is located in the space between the bearing seat 14 of the motor 1 and the air intake plate 3, and will not interfere with the rotation of the clamp 13.

[0089] The working principle of the present embodiment is as follows: the drying tower contains the high-speed centrifugal atomizer, which is used in conjunction with the drying tower's hot air distributor 8. The heat exchange shell 61 utilizes the heat generated by the hot air distributor 8 to preheat the hot air, cooperating with the heater 62 to provide 45°C hot air. This hot air is then supplied to the heating chamber 5211 through the air inlet disk 3 and the vent 44 within the connecting rod 2, heating the lower arc shell 521, the inner ring shell 513, and the atomizing tube 9. The hypoglycemic complex extract entering the atomizing chamber 514 maintains good fluidity upon contact with the lower arc shell 521, maintaining the stability of the liquid film formed by the hypoglycemic complex extract on the lower arc shell 521 and reducing the accumulation of viscous, high-sugar liquids such as the hypoglycemic complex extract on the atomizing disk 5. This not only improves the atomization effect but also reduces clogging of the atomizing disk 5. The atomizing disk 5 can also supply nitrogen to the atomizing chamber 514 through the ventilation channel 44 of the liquid material disk 4, reducing the probability of oxidation of sugar-containing liquids such as the hypoglycemic complex extract after heating, thereby improving the medicinal properties of the atomized liquid. The enhanced atomization effect of the atomizing disk 5 results in smaller particles of the atomized liquid such as the hypoglycemic complex extract, thereby enabling faster drying within the drying tower. In conjunction with the hot air distributor 8, this reduces the probability of undried atomized spray falling onto the inner walls of the drying tower, thereby reducing the accumulation of atomized particles on the inner walls of the drying tower and improving the atomization yield.

[0090] The embodiments of this specific implementation method are all preferred embodiments of the present application and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A high-speed centrifugal atomizer for Chinese medicine extracts, characterized by: include Motor (1); A connecting rod (2) is mounted on the end of the rotating shaft of the motor (1), and a first side hole (22) and a second side hole (23) are formed on the side wall thereof, and a connecting hole (24) is formed inside thereof for connecting the first side hole (22) and the second side hole (23); A bearing seat (14) is mounted on the end of the motor (1), and the inner ring is mounted on the rotating shaft of the motor (1); An air intake disc (3) is mounted on the bearing seat (14), and an air intake ring cavity (31) is formed on the circumferential inner wall at a position facing the first side hole (22); A hot air pipe (32) is connected to the air inlet ring cavity (31), and the other end is connected to a hot air device (6) for providing hot air; The liquid material tray (4) is installed at the end of the air inlet tray (3), has a liquid material cavity (41) formed inside, and a discharge ring hole (42) formed at the bottom; a liquid material pipe (43) communicating with the liquid material chamber (41); An atomizing disc (5) is mounted on the end of the connecting rod (2), has an atomizing cavity (514) formed therein, has a plurality of atomizing holes (511) formed on its circumferential outer wall, is rotatably connected to the end of the liquid material disc (4), and has a feed ring hole (512) formed on its top that is in communication with the discharge ring hole (42); The lower arc shell (521) is buckled and installed on the inner bottom wall of the atomizing disk (5), and a heating chamber (5211) is formed between the lower arc shell and the inner bottom wall of the atomizing disk (5). The inner bottom wall of the atomizing disk (5) is provided with a heating hole (522) that connects the heating chamber (5211) with the second side hole (23). The bottom of the atomizing disk (5) is provided with an exhaust hole (523) that connects with the heating chamber (5211); A ventilation channel (44) is provided in the liquid material tray (4), and the end of the ventilation channel (44) is communicated with the air inlet ring hole and is located outside the discharge ring hole (42); The front end of the ventilation channel (44) is connected to a ventilation pipe (441), which is connected to a nitrogen tank. The end of the ventilation channel (44) is tilted and faces the expanded diameter portion of the feed ring hole (512). The atomizing disk (5) comprises a top shell (51) and a base (52), wherein the base (52) is sleeved and mounted on the connecting rod (2), the upper surface of the base (52) is a concave conical surface, and the lower arc shell (521) is mounted on the arc conical surface of the base (52); The top shell (51) is mounted on the base (52), and the atomization hole (511) and the feed ring hole (512) are both located on the top shell (51); An inner ring shell (513) is inserted into the circumferential inner wall of the top shell (51), and a cavity formed between the inner ring shell (513) and the circumferential inner wall of the top shell (51) is an auxiliary heating cavity (5131). The lower arc shell (521) is provided with a fixing hole (5212) for connecting the heating cavity (5211) with the auxiliary heating cavity (5131). An atomizing tube (9) is embedded in the inner ring shell (513) at the atomizing hole (511). The atomizing tube (9) is embedded in the atomizing hole (511). The interior of the atomizing tube (9) is hollow and communicates with the auxiliary heating chamber (5131).

2. A high-speed centrifugal atomizer for Chinese medicine extract according to claim 1, characterized in that: The discharge ring hole (42) at the bottom of the liquid material tray (4) partially protrudes and extends into the feed ring hole (512).

3. A high-speed centrifugal atomizer for Chinese medicine extract according to claim 2, characterized in that: A one-way ring film (421) is fixedly provided at the bottom of the blanking ring hole (42), and the two one-way ring films (421) are arranged to be tilted downwards and the bottom ends thereof are in contact with each other.

4. The high-speed centrifugal atomizer for Chinese medicine extract according to claim 1, characterized in that: The atomizing tube (9) comprises an inner tube (91) and an outer tube (92), wherein the outer tube (92) is embedded in the atomizing hole (511), and the edge portion of one end of the outer tube (92) close to the atomizing chamber (514) is buckled on the circumferential inner wall of the top shell (51), and the end of the outer tube (92) away from the atomizing chamber (514) is folded inward to form a buckling tube (921); The outer cylinder (92) is inserted into the inner ring shell (513) and buckled on the inner ring shell (513). The outer cylinder (92) is detachably mounted on the inner ring shell (513). The end of the outer cylinder (92) is tightly pressed against the end of the buckling cylinder (921).

5. The high-speed centrifugal atomizer for Chinese medicine extract according to claim 4, characterized in that: A lower blowing hole (922) is provided at the top of the end of the outer cylinder (92) away from the atomizing chamber (514), and the air blown out of the lower blowing hole (922) is inclined downward.

6. A drying tower comprising the high-speed centrifugal atomizer according to any one of claims 1 to 5, characterized in that: Also includes A tower body (7), a high-speed centrifugal atomizer is installed on the top of the tower body (7); A hot air distributor (8) is installed on the top of the tower body (7), and a high-speed centrifugal atomizer is placed therein, with an air outlet located above the atomizing disk (5). A plurality of air plates (81) are provided in the air duct inside the hot air distributor (8), and the bottoms of the air plates (81) are all inclined in the same rotation direction; The portion of the hot air distributor (8) located inside the tower body (7) is divided into an inner shell (82) and an outer shell (83), wherein the inner shell (82) and the outer shell (83) are connected via an air plate (81), the inner shell (82) is tightly pressed against the high-speed centrifugal atomizer, the bottom of the outer shell (83) is higher than the bottom of the inner shell (82), so that the air plate (81) leaks out, the bottom of the inner shell (82) is convex, and the upper surface of the convex portion of the inner shell (82) forms an inclined surface inclined in a direction away from the high-speed centrifugal atomizer.

7. A drying tower according to claim 6, characterized in that: The hot air device (6) includes a heat exchange shell (61) and a heating wire (62); The heat exchange shell (61) is fixed on the top of the hot air distributor (8), and the inner cavity is provided with a spiral partition to form a spiral space inside. The heating wire (62) is installed in the heat exchange shell (61), the inlet of the heat exchange shell (61) is connected to the blower, and the outlet of the heat exchange shell (61) is connected to the hot air pipe (32).

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