Traditional Chinese medicinal material extract concentrating and drying device

Abstract

The invention relates to the field of traditional Chinese medicine processing, in particular to a traditional Chinese medicine extract concentrating and drying device. Comprising a material tank for storing materials and a drying cylinder arranged beside the material tank. The stirring and drying mechanism is connected with the drying cylinder and comprises a conical disc, a straight cylinder, an adapter plate, a middle plate and a plurality of scraping plates, the conical disc is rotationally arranged in the middle of the drying cylinder, the straight cylinder is coaxially and fixedly connected with the upper end of the conical disc, the adapter plate is rotationally arranged above the straight cylinder, and the middle plate is coaxially arranged below the adapter plate and rotationally connected with the drying cylinder; a plurality of scraping plates are arranged below the middle plate in an equal-angle array manner; the feeding and discharging mechanism comprises a middle column, a plurality of exhaust pipes, a plurality of feeding pipes and a plurality of discharging pipes, the middle column and the drying cylinder are coaxially arranged in a sliding mode, and the exhaust pipes, the feeding pipes and the discharging pipes are fixedly connected with the middle column. And concentrated products can be quickly discharged out of the drying cylinder, so that the concentrating and drying efficiency is greatly improved.

Description

Technical Field

[0001] The invention relates to the field of traditional Chinese medicine processing, and in particular to a device for concentrating and drying traditional Chinese medicine extracts. Background Art

[0002] In the field of Chinese medicinal material processing, the concentration and drying of extracts is a key link. Traditional concentration and drying devices have many defects. For example, the common hot air circulation drying box has a single heating method, which only circulates hot air in the box to achieve drying, resulting in uneven heating of the material, which is prone to local overheating and damage to the active ingredients. In addition, the drying efficiency is low and a lot of time and energy are consumed.

[0003] Although traditional vacuum drying equipment can reduce the risk of material oxidation to a certain extent, its heat transfer mainly relies on thermal radiation. In a vacuum environment, this heat transfer method is extremely inefficient, resulting in an abnormally slow drying process. Moreover, in order to maintain a vacuum environment, the equipment has extremely high requirements for sealing, which undoubtedly increases the manufacturing cost and subsequent maintenance cost of the equipment, bringing a heavy economic burden to the company.

[0004] In addition, the stirring function of traditional devices is imperfect. Most of them use simple paddle stirring, which cannot flexibly adjust the stirring intensity and method according to the characteristics of the material. As a result, the material is easy to agglomerate during the concentration and drying process, affecting the heat and mass transfer effect, further reducing the drying quality, and part of the dried material will remain on the drying plate, which will cause scaling over time.

[0005] In addition, there are many problems in the feeding and discharging process. The material flow and distribution cannot be accurately controlled during feeding, and residual materials are easy to remain during discharging, causing waste and increasing the difficulty of cleaning. At the same time, traditional equipment directly discharges the generated water vapor, fails to effectively utilize the heat it carries, and has low energy utilization. These defects seriously restrict the improvement of the quality and production efficiency of Chinese herbal medicine extracts. There is an urgent need for a new, efficient and intelligent concentration and drying device to meet the development needs of the industry. Summary of the invention

[0006] Based on this, it is necessary to provide a Chinese herbal medicine extract concentration and drying device to address the existing technical problems.

[0007] In order to solve the problems of the prior art, the technical solution adopted by the present invention is: The Chinese herbal medicine extract concentration and drying device includes a material storage tank and also includes: A drying cylinder arranged beside the material tank; The stirring and drying mechanism is connected to the drying cylinder and includes a motor, a main pulley, a cone disk, a straight cylinder, a secondary pulley, an adapter plate and a plurality of scrapers. The motor is fixedly connected to one side of the drying cylinder, the main pulley is fixedly connected to the output end of the motor, the secondary pulley is arranged above the main pulley and is connected to the main pulley through a belt drive, the cone disk is rotatably arranged in the middle of the drying cylinder, the straight cylinder is coaxially fixed to the upper end of the cone disk, the adapter plate is rotatably arranged above the straight cylinder, the middle plate is coaxially arranged below the adapter plate and is rotatably connected to the drying cylinder, and a plurality of scrapers are arranged in an equal angle array below the middle plate and revolve with the rotation of the middle plate; The feeding and discharging mechanism comprises a central column, a plurality of exhaust pipes, a plurality of feeding pipes and a plurality of discharging pipes. The central column is slidably arranged coaxially with the drying cylinder. The plurality of exhaust pipes are arranged in an array at equal angles along the circumferential direction of the upper part of the central column. The plurality of feeding pipes are arranged at the upper part of the plurality of exhaust pipes and are fixedly connected to the central column. The plurality of discharging pipes are respectively arranged at the lower part of the plurality of exhaust pipes and are fixedly connected to the central column.

[0008] Furthermore, the stirring and drying mechanism also includes a conical copper tube, an annular copper tube and a heat source. The heat source is fixedly arranged on the side of the drying cylinder away from the motor. The conical copper tube is sleeved on the outside of the cone disk and connected to the output end of the heat source. The annular copper tube is sleeved on the outside of the straight cylinder and connected to the output end of the heat source.

[0009] Furthermore, the feeding and discharging mechanism also includes a lifting plate, two lifting mechanisms, two limit springs and two limit pins. The lifting plate is fixedly connected to the lower end of the middle column. The two limit pins are symmetrically arranged and the lower ends are fixedly connected to the lifting plate. The upper ends of the two limit pins are slidably connected to the bottom of the drying cylinder. The two limit springs are respectively mounted on the outside of the two limit pins. The upper ends of the limit springs are fixedly connected to the drying cylinder, and the lower ends are fixedly connected to the lifting plate. The two lifting mechanisms are respectively arranged at the lower ends of the lifting plate and the output ends are against the lifting plate.

[0010] Furthermore, the feeding and discharging mechanism also includes an adapter plate, an insulation cylinder, a storage cylinder and a material blocking cover. The adapter plate is coaxially fixedly connected to the upper end of the drying cylinder, the upper ends of the exhaust pipe and the feed pipe are respectively slidably connected to the adapter plate, the storage cylinder is coaxially fixedly connected to the upper end of the adapter plate, the upper end of the storage cylinder is connected to the output end of the material tank, and the lower end is connected to a number of feed pipes. The upper part of the insulation cylinder is connected to an external valve, and the lower end is connected to the upper ends of a number of exhaust pipes. The upper ends of the several feed pipes are connected to the interlayer between the insulation cylinder and the storage cylinder, and the material blocking cover is coaxially fixedly connected to the lower end of the middle plate and slidably connected to the outer wall of the middle column.

[0011] Furthermore, the stirring and drying mechanism also includes a main bevel gear, a first bevel gear, a main gear and a main gear ring. The main bevel gear is coaxially fixed to the main pulley, the first bevel gear is meshed with the main bevel gear, the main gear is coaxially fixed to the first bevel gear, and the main gear ring is coaxially fixed to the lower end of the cone disk and meshed with the main gear.

[0012] Furthermore, the stirring and drying mechanism also includes a secondary bevel gear, a second bevel gear, a secondary gear, a secondary gear ring and a transfer tube. The secondary bevel gear is fixedly connected to the secondary pulley coaxially, the second bevel gear is meshed with the secondary bevel gear, the secondary gear is fixedly connected to the second bevel gear coaxially, the secondary gear ring is rotationally connected to the upper part of the drying cylinder coaxially and meshed with the secondary gear, the transfer tube is key-connected to the secondary gear ring and fixedly connected to the upper end of the transfer plate, the transfer tube is slidably connected to the drying cylinder, and the rotation of the transfer plate will drive the several scrapers below it to rotate.

[0013] Furthermore, the stirring and drying mechanism also includes a plurality of extrusion sleeves, a plurality of touch pressure shafts, a plurality of buffer springs, a plurality of holders and a plurality of holders. The plurality of holders are respectively fixedly connected to the upper ends of the plurality of scrapers, the plurality of touch pressure shafts are respectively fixedly connected to the upper ends of the plurality of holders, the plurality of holders are respectively fixedly connected to the upper ends of the plurality of holders, the plurality of extrusion sleeves are respectively slidably connected to the plurality of holders coaxially and are fixedly connected to the adapter plate, the plurality of touch pressure shafts are respectively slidably connected to the plurality of extrusion sleeves, the plurality of buffer springs are respectively sleeved on the outside of the plurality of touch pressure shafts, the lower ends of the plurality of buffer springs are respectively fixedly connected to the plurality of holders, and the upper ends are respectively fixedly connected to the plurality of extrusion sleeves.

[0014] Furthermore, the stirring and drying mechanism also includes a plurality of positioning snap rings, which are respectively coaxially fixed to the upper ends of the plurality of contact and pressure shafts, and the plurality of positioning snap rings are pressed against the upper ends of the corresponding extrusion sleeves when the adapter plate moves upward.

[0015] Furthermore, the stirring and drying mechanism also includes two cylinders, two push blocks, two reset springs and two reset pins. The two cylinders are respectively arranged on both sides of the drying cylinder. The two push blocks are respectively slidably connected to the side walls of the drying cylinder and to the output ends of the two cylinders. The other ends of the two push blocks will push the adapter plate to move in the vertical direction. The two reset pins are symmetrically arranged and the lower ends are respectively fixedly connected to the upper end of the middle plate. The reset pins are respectively slidably connected to the adapter plate. The two reset springs are respectively sleeved on the outside of the two reset pins. The lower end of the reset spring is fixedly connected to the middle plate, and the upper end is fixedly connected to the adapter plate.

[0016] Furthermore, the stirring and drying mechanism also includes a plurality of balls, which are arranged in an array with equal angles and rotated along the circumferential direction of the upper end of the adapter plate, and the balls are against the lower end of the push block.

[0017] Compared with the prior art, the present invention has the following beneficial effects: Firstly, the device is uniquely designed by combining a cone disk and a straight cylinder, and with the heat source and the corresponding conical copper tube and annular copper tube for heat conduction, it can achieve all-round and uniform heating of the material, avoid local overheating, and retain the effective ingredients of the Chinese herbal medicine extract to the greatest extent; Second: This device precisely controls the inflow and outflow of materials by setting up a central column, exhaust pipe, feed pipe and discharge pipe. The feed is evenly distributed and the discharge is thorough, which reduces material residue and waste and reduces cleaning costs. At the same time, the exhaust pipe can also use the discharged water vapor to preheat the new incoming materials, build an internal heat recycling system, significantly improve energy utilization, and reduce production energy consumption; Third: This device stirs the material and assists in feeding by setting a scraper. When stirring the material, the non-contact design of the scraper and the cone disk allows the material to form a three-dimensional flow pattern under the dual effects of the cone disk rotation and the reverse rotation of the scraper. The material can shuttle more freely between the cone disk and the scraper, and the heat transfer will not be hindered by contact. It can penetrate into all parts of the material more evenly and quickly, thereby improving the heating and concentration effect. When assisting in feeding the material, the contact scraping of the scraper and the cone disk not only cleans the material, but also wipes the surface of the cone disk to prevent the long-term accumulation of scaling of the material from affecting the subsequent heating effect. This design combines feeding with cleaning and maintenance, simplifies the equipment maintenance process, saves manpower and material resources, and maintains long-term stable operation of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the three-dimensional structure of an embodiment; Figure 2 is a three-dimensional structural schematic diagram of the embodiment from another angle; Figure 3 It is a schematic diagram of the three-dimensional structure decomposition of the embodiment; Figure 4 is a planar half-section view of an embodiment; Figure 5 It is a partial cross-sectional view of the stirring and drying mechanism in the embodiment; Figure 6 yes Figure 5 A magnified view of the structure at center; Figure 7 1 is a schematic diagram of the partial structural decomposition of the stirring and drying mechanism in the embodiment; Figure 8 yes Figure 7 Enlarged view of the structure at point B in the middle.

[0019] The numbers in the figure are: 1. Material tank; 2. Drying cylinder; 3. Stirring and drying mechanism; 4. Motor; 5. Main pulley; 6. Main bevel gear; 7. First bevel gear; 8. Main gear; 9. Main gear ring; 10. Cone disk; 11. Conical copper tube; 12. Straight cylinder; 13. Annular copper tube; 14. Heat source; 15. Secondary pulley; 16. Secondary bevel gear; 17. Secondary bevel gear; 18. Secondary gear; 19. Secondary gear ring; 20. Adapter tube; 21. Adapter plate; 22. Reset spring; 23. Reset pin; 24. Ball bearing ; 25. Cylinder; 26. Push block; 27. Extrusion sleeve; 28. Contact pressure shaft; 29. ​​Buffer spring; 30. Card seat; 31. Card sleeve; 32. Positioning snap ring; 33. Scraper; 34. Feed and discharge mechanism; 35. Center column; 36. Exhaust pipe; 37. Feed pipe; 38. Discharge pipe; 39. Lifting mechanism; 40. Lifting plate; 41. Limit pin; 42. Adapter plate; 43. Insulation cylinder; 44. Storage cylinder; 45. Material blocking cover; 46. Limit spring; 47. Middle plate. DETAILED DESCRIPTION

[0020] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0021] refer to Figures 1 to 8 , a Chinese herbal medicine extract concentration and drying device, including a material tank 1 for storing materials, and also including: A drying cylinder 2 arranged beside the material tank 1; The stirring and drying mechanism 3 is connected to the drying cylinder 2, and includes a motor 4, a main pulley 5, a cone disk 10, a straight cylinder 12, an auxiliary pulley 15, an adapter plate 21, a middle plate 47 and a plurality of scrapers 33. The motor 4 is fixedly connected to one side of the drying cylinder 2, the main pulley 5 is fixedly connected to the output end of the motor 4, the auxiliary pulley 15 is arranged above the main pulley 5 and is connected to the main pulley 5 through a belt drive, and the cone disk 10 is rotatably arranged in the middle of the drying cylinder 2 (such as Figure 5 As shown in the figure, the straight cylinder 12 is coaxially fixedly connected to the upper end of the cone disk 10, the adapter plate 21 is rotatably arranged above the straight cylinder 12, the middle plate 47 is coaxially arranged below the adapter plate 21 and rotatably connected to the drying cylinder 2, and a plurality of scrapers 33 are arranged in an equal angle array below the middle plate 47 and revolve with the rotation of the middle plate 47; The feeding and discharging mechanism 34 includes a central column 35, a plurality of exhaust pipes 36, a plurality of feeding pipes 37 and a plurality of discharging pipes 38. The central column 35 is slidably arranged coaxially with the drying cylinder 2 (such as Figure 4 As shown), a plurality of exhaust pipes 36 are arranged in an array at equal angles along the circumferential direction of the upper part of the middle column 35, a plurality of feed pipes 37 are arranged at the upper part of the plurality of exhaust pipes 36 and are fixedly connected to the middle column 35, and a plurality of discharge pipes 38 are respectively arranged at the lower part of the plurality of exhaust pipes 36 and are fixedly connected to the middle column 35.

[0022] When the device is in operation, the material tank 1 feeds the material into the side where the middle column 35 and the cone disk 10 are close through a plurality of feed pipes 37. The side where the middle column 35 and the cone disk 10 are close is the concentration chamber. At this time, the cone disk 10 and the straight cylinder 12 heat the material. During the heating process, the straight cylinder 12 and the cone disk 10 rotate. At the same time, the adapter plate 21 rotates in the opposite direction to the cone disk 10. During this process, the adapter plate 21 drives the middle plate 47 to rotate, and the middle plate 47 drives a plurality of scrapers 33 to move along the circumferential direction of the middle plate 47, so as to stir the material during the heating process.

[0023] During heating, the middle column 35 moves upward for the first time. At this time, the lower ends of the several feed pipes 37 are staggered from the concentration chamber to prevent water vapor from flowing upward into the several feed pipes 37 during the heating process. At the same time, it can also prevent the material from being continuously injected into the concentration chamber during the heating process. The water vapor generated by the material in the concentration chamber after heating will leave the concentration chamber after passing through the several exhaust pipes 36, thereby preventing the excess water vapor in the concentration process from affecting the quality of the subsequent concentrated product.

[0024] When collecting the concentrated product, the middle column 35 moves upward for the second time. At this time, the lower ends of the exhaust pipes 36 are staggered from the concentration chamber, the upper ends of the discharge pipes 38 are against the lower end of the cone disk 10, and the scrapers 33 move downward until they are against the inner wall of the cone disk 10. Then, when the cone disk 10 and the straight cylinder 12 rotate, the concentrated and dried material will be sucked away by the discharge pipes 38, so as to realize the rapid discharge of the material.

[0025] In order to provide the conical disk 10 and the straight cylinder 12 with heat for concentrating the dry material, the following features are also specifically provided: The stirring and drying mechanism 3 also includes a conical copper tube 11, an annular copper tube 13 and a heat source 14. The heat source 14 is fixedly arranged on the side of the drying cylinder 2 away from the motor 4. The conical copper tube 11 is sleeved on the outside of the conical disk 10 and is connected to the output end of the heat source 14. The annular copper tube 13 is sleeved on the outside of the straight cylinder 12 and is connected to the output end of the heat source 14. The heat source 14 provides heat to the conical disk 10 and the straight cylinder 12 through the conical copper tube 11 and the annular copper tube 13, respectively, so that the conical disk 10 and the straight cylinder 12 can heat the material to achieve the concentration and drying of the material. During the heating process, the operator can adjust the output power of the heat source 14 as needed, thereby controlling the temperature of the conical disk 10 and the straight cylinder 12 to meet the concentration and drying requirements of different materials.

[0026] In order to drive the middle column 35 to move in the vertical direction, the following features are also specifically provided: The feeding and discharging mechanism 34 also includes a lifting plate 40, two lifting mechanisms 39, two limit springs 46 and two limit pins 41. The lifting plate 40 is fixedly connected to the lower end of the middle column 35. The two limit pins 41 are arranged in a symmetrical state and the lower ends are fixedly connected to the lifting plate 40. The upper ends of the two limit pins 41 are slidably connected to the bottom of the drying cylinder 2. The two limit springs 46 are respectively sleeved on the outside of the two limit pins 41. The upper ends of the limit springs 46 are fixedly connected to the drying cylinder 2 and the lower ends are fixedly connected to the lifting plate 40. The two lifting mechanisms 39 are respectively arranged at the lower ends of the lifting plate 40 and the output ends are against the lifting plate 40. When the middle column 35 needs to move in the vertical direction, the two lifting mechanisms 39 start to work, and their output ends push the lifting plate 40 to move upward, and the lifting plate 40 drives the middle column 35 to move upward. In this process, the limit pin 41 slides on the bottom of the drying cylinder 2, plays a guiding and limiting role, and ensures that the moving direction of the middle column 35 is accurate. At the same time, the limit spring 46 will be elastically deformed when the middle column 35 moves. When the lifting mechanism 39 is reset, the limit spring 46 will help the lifting plate 40 and the middle column 35 return to the initial position. At the same time, the limit spring 46 can also buffer the middle column 35 when the middle column 35 moves, so as to prevent the middle column 35 from moving too fast or overshooting.

[0027] In order to reuse the extracted water vapor so that it can preheat the material before entering the concentration chamber, the following features are also set: The feeding and discharging mechanism 34 further includes a transfer plate 42, a heat preservation cylinder 43, a storage cylinder 44 and a material blocking cover 45. The transfer plate 42 is coaxially fixedly connected to the upper end of the drying cylinder 2 (refer to Figure 4 ), the upper ends of the exhaust pipe 36 and the feed pipe 37 are respectively connected to the adapter plate 42 in a sliding manner, the storage barrel 44 is coaxially fixedly connected to the upper end of the adapter plate 42, the upper end of the storage barrel 44 is connected to the output end of the material tank 1, and the lower end is connected to a plurality of feed pipes 37, the upper part of the insulation barrel 43 is connected to the external valve, and the lower end is connected to the upper ends of a plurality of exhaust pipes 36, and a sandwich is formed between the insulation barrel 43 and the storage barrel 44, the upper end of the sandwich is connected to the output end of the material tank 1, and the lower end is connected to a plurality of feed pipes 37, the material blocking cover 45 is coaxially fixedly connected to the lower end of the middle plate 47 and is connected to the outer wall of the middle column 35 in a sliding manner. After the material enters the storage barrel 44 from the material tank 1, it will be temporarily stored in the sandwich between the storage barrel 44 and the insulation barrel 43. During the concentration process, the water vapor discharged from the exhaust pipe 36 will enter the insulation barrel 43 to preheat the material that is about to enter the concentration chamber, thereby improving the concentration efficiency. The adapter plate 42 is used to connect the exhaust pipe 36 and the insulation cylinder 43 as well as the feed pipe 37 and the storage cylinder 44 so that they can slide relative to each other, ensuring that the connection and function of each pipeline are not affected when the center column 35 moves.

[0028] The material blocking cover 45 is used to block the lower ends of the plurality of feed pipes 37 during the material heating process to prevent the material from flowing back through the feed pipes 37 .

[0029] In order to drive the cone disk 10 and the straight cylinder 12 to rotate, and then drive the material to rotate, the following features are specifically set: The stirring and drying mechanism 3 also includes a main bevel gear 6, a first bevel gear 7, a main gear 8 and a main gear ring 9. The main bevel gear 6 is coaxially fixed to the main pulley 5, the first bevel gear 7 is meshed with the main bevel gear 6, the main gear 8 is coaxially fixed to the first bevel gear 7, and the main gear ring 9 is coaxially fixed to the lower end of the cone disk 10 and meshed with the main gear 8. After the motor 4 is started, the main pulley 5 rotates with the output end of the motor 4, the main bevel gear 6 drives the main gear 8 to rotate through the first bevel gear 7, and the main gear 8 drives the cone disk 10 to rotate through the main gear ring 9. The rotation of the cone disk 10 drives the material to rotate in the concentration chamber, so that the material is heated more evenly and the concentration and drying effect is improved.

[0030] In order to drive the adapter plate 21 to rotate in the opposite direction to the cone disk 10, so that the scraper 33 arranged under the adapter plate 21 can stir the material when the cone disk 10 rotates, the following features are also specifically provided: The stirring and drying mechanism 3 also includes a secondary bevel gear 16, a second bevel gear 17, a secondary gear 18, a secondary gear ring 19 and a transfer tube 20. The secondary bevel gear 16 is coaxially fixedly connected to the secondary pulley 15, the second bevel gear 17 is meshed with the secondary bevel gear 16, the secondary gear 18 is coaxially fixedly connected to the second bevel gear 17, the secondary gear ring 19 is coaxially rotatably connected to the upper part of the drying cylinder 2 and meshed with the secondary gear 18, the transfer tube 20 is key-connected to the secondary gear ring 19 and is fixedly connected to the upper end of the transfer plate 21, the transfer tube 20 is slidably connected to the drying cylinder 2, and the rotation of the transfer plate 21 will drive the plurality of scrapers 33 thereunder to rotate. When the primary pulley 5 drives the secondary pulley 15 to rotate through the belt, the secondary pulley 15 drives the second bevel gear 17 to rotate through the secondary bevel gear 16, and the second bevel gear 17 drives the secondary ring gear 19 to rotate through the secondary gear 18. When the secondary ring gear 19 rotates, it drives the adapter plate 21 to rotate through the adapter tube 20. The rotation of the adapter plate 21 drives the plurality of scrapers 33 thereunder to rotate through the middle plate 47, thereby realizing a rotation opposite to the rotation of the conical disk 10 to stir the material.

[0031] In order to ensure that the scrapers 33 do not contact the inner wall of the cone 10 during the material heating process, and when cleaning the concentrated and dried product, the scrapers 33 will move down and press against the inner wall of the cone 10, the following features are also provided: The stirring and drying mechanism 3 further includes a plurality of extrusion sleeves 27, a plurality of contact pressure shafts 28, a plurality of buffer springs 29, a plurality of clamping seats 30 and a plurality of clamping sleeves 31. The plurality of clamping seats 30 are respectively fixedly connected to the upper ends of the plurality of scrapers 33 (refer to Figure 6 and Figure 8), a plurality of contact pressure shafts 28 are respectively fixedly connected to the upper ends of a plurality of clamping seats 30, a plurality of clamping sleeves 31 are respectively fixedly connected to the upper ends of a plurality of clamping seats 30, a plurality of extrusion sleeves 27 are respectively slidably connected to a plurality of clamping sleeves 31 coaxially and are respectively fixedly connected to the adapter plate 21, a plurality of contact pressure shafts 28 are respectively slidably connected to a plurality of extrusion sleeves 27, a plurality of buffer springs 29 are respectively sleeved on the outside of a plurality of contact pressure shafts 28, a plurality of buffer springs 29 are respectively fixedly connected to a plurality of clamping seats 30 at their lower ends, and are respectively fixedly connected to a plurality of extrusion sleeves 27 at their upper ends. During the material heating process, when the adapter plate 21 rotates or moves, the extrusion sleeve 27 will move with the adapter plate 21, and at this time, a plurality of scrapers 33 will not contact the inner wall of the cone disk 10, ensuring that the material is stirred during the heating process. When cleaning the concentrated and dried product, a certain pressure is applied externally (the specific process is described in the detailed description below), and the adapter plate 21 will drive the extrusion sleeve 27 to move downward. After the extrusion sleeve 27 moves, it will squeeze the contact pressure shaft 28 through the buffer spring 29. The contact pressure shaft 28 overcomes the elastic force of the buffer spring 29 and transmits the force to the holder 30, thereby causing the scraper 33 to move downward and abut against the inner wall of the cone disk 10. Then, when the cone disk 10 continues to rotate, the scraper 33 will clean the concentrated and dried product on the cone disk 10.

[0032] In order to ensure that during the material heating process, as the adapter plate 21 moves upward, the plurality of holders 30 will no longer push the scraper 33 to move downward excessively, the following features are also specifically provided: The stirring and drying mechanism 3 further includes a plurality of positioning snap rings 32 , which are respectively coaxially fixedly connected to the upper ends of the plurality of contact and pressure shafts 28 . When the adapter plate 21 moves upward, the plurality of positioning snap rings 32 abut against the upper ends of the corresponding extrusion sleeves 27 . During the material heating process, when the adapter plate 21 moves upward, the adapter plate 21 will drive the extrusion sleeve 27 fixed thereto to move upward. At this time, the limit clamping seat 30 will first move downward relative to the extrusion sleeve 27 under the action of the return spring 22, until the positioning clamping ring 32 is pressed against the upper end of the corresponding extrusion sleeve 27, and the downward movement of the clamping seat 30 relative to the extrusion sleeve 27 is stopped. Then the clamping seat 30 and the extrusion sleeve 27 remain relatively still and move upward together with the extrusion sleeve 27, thereby ensuring that when the adapter plate 21 moves upward, a number of clamping seats 30 will not push the scraper 33 to continue to press against the inner wall of the cone disk 10 under the action of a number of return springs 22, and ensure that when the adapter plate 21 moves upward, the scraper 33 maintains an appropriate distance from the inner wall of the cone disk 10 to avoid the scraper 33 contacting the inner wall of the cone disk 10 during the heating process and affecting the concentration and drying process of the material.

[0033] In order to drive the adapter plate 21 to move, the following features are also specifically provided: The stirring and drying mechanism 3 also includes two cylinders 25, two push blocks 26, two reset springs 22 and two reset pins 23. The two cylinders 25 are respectively arranged on both sides of the drying cylinder 2 (refer to Figure 5 ), the two push blocks 26 are respectively slidably connected to the side walls of the drying cylinder 2 and are slidably connected to the output ends of the two cylinders 25. The other ends of the two push blocks 26 will push the adapter plate 21 to move in the vertical direction. The two reset pins 23 are symmetrically arranged and the lower ends are respectively fixedly connected to the upper ends of the middle plate 47. The reset pins 23 are respectively slidably connected to the adapter plate 21. The two reset springs 22 are respectively sleeved on the outside of the two reset pins 23. The lower ends of the reset springs 22 are fixedly connected to the middle plate 47, and the upper ends are fixedly connected to the adapter plate 21. When it is necessary to drive the adapter plate 21 to move, the two cylinders 25 start working, and their output ends push the push blocks 26 to slide on the side walls of the drying cylinder 2. The other ends of the push blocks 26 will push the adapter plate 21 to move in the vertical direction. In this process, the reset pins 23 play a guiding and limiting role to ensure that the moving direction of the adapter plate 21 is accurate. At the same time, the return spring 22 will be elastically deformed when the adapter plate 21 moves. When the output end of the cylinder 25 returns to the initial state, the return spring 22 will help the adapter plate 21 return to the initial position.

[0034] In order to reduce the friction between the adapter plate 21 and the push block 26 to a minimum when the adapter plate 21 and the middle plate 47 rotate synchronously, the following features are specifically provided: The stirring and drying mechanism 3 further includes a plurality of balls 24, which are arranged in an array with equal angles in rotation along the circumferential direction of the upper end of the adapter plate 21, and the balls 24 abut against the lower end of the push block 26. When the adapter plate 21 and the middle plate 47 rotate synchronously, the balls 24 are arranged in an array with equal angles in rotation along the circumferential direction of the upper end of the adapter plate 21, and the balls 24 abut against the lower end of the push block 26, so that the friction between the adapter plate 21 and the push block 26 can be reduced to a minimum, reducing energy loss and component wear, extending the service life of the device, and also ensuring the stability and reliability of the rotation of the adapter plate 21.

[0035] The working principle of this device is that the material in the material tank 1 is fed into the side close to the middle column 35 and the cone disk 10, that is, the concentration chamber, through a plurality of feed pipes 37. At this time, the motor 4 in the stirring and drying mechanism 3 is started, and the main pulley 5 rotates with the output end of the motor 4, and finally drives the cone disk 10 to rotate through the transmission of the main bevel gear 6, the first bevel gear 7, the main gear 8 and the main gear ring 9; at the same time, the auxiliary pulley 15 is connected to the main pulley 5 through a belt transmission, and finally drives the adapter plate 21 to rotate through the transmission of the auxiliary bevel gear 16, the second bevel gear 17, the auxiliary gear 18, the auxiliary gear ring 19 and the transfer tube 20, and the rotation direction of the adapter plate 21 is opposite to that of the cone disk 10. The adapter plate 21 will drive the middle plate 47 to rotate, and then the middle plate 47 will drive the several scrapers 33 below it to stir the material. In this process, the conical copper tube 11 and the annular copper tube 13 in the stirring and drying mechanism 3 heat the cone disk 10 and the straight cylinder 12 respectively under the action of the heat source 14, so that the material is heated in the concentration chamber and begins to concentrate. The rotation of the straight cylinder 12 and the cone disk 10 makes the material heated more evenly.

[0036] When it is necessary to discharge the water vapor generated during the concentration process, the middle column 35 in the feed and discharge mechanism 34 is displaced upward for the first time under the action of the two lifting mechanisms 39. At this time, the lower ends of the plurality of feed pipes 37 are staggered from the concentration chamber. The water vapor generated by the heated material in the concentration chamber will leave the concentration chamber after passing through the plurality of exhaust pipes 36 and enter the interlayer between the insulation cylinder 43 and the storage cylinder 44, thereby preheating the material that is about to enter the concentration chamber.

[0037] When the concentration is completed and the concentrated product needs to be collected, the middle column 35 moves upward for the second time. At this time, the lower ends of the exhaust pipes 36 are staggered with the concentration chamber, and the upper ends of the discharge pipes 38 are against the lower end of the cone disk 10. At the same time, the cylinder 25 in the stirring and drying mechanism 3 pushes the adapter plate 21 to move downward, so that the scrapers 33 move downward until they are against the inner wall of the cone disk 10. Then, when the cone disk 10 and the straight cylinder 12 continue to rotate, the concentrated and dried material will be sucked away by the discharge pipes 38, so that the material can be quickly discharged. In the whole process, the various components work together to achieve efficient concentration and drying of Chinese herbal medicine extracts through operations such as heating, stirring, discharging water vapor and collecting concentrated products.

[0038] The above embodiments only express one or several implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the attached claims.

Claims

1. A Chinese herbal medicine extract concentration and drying device, comprising a material storage tank (1), characterized in that: Also includes: A drying cylinder (2) arranged beside the material tank (1); The stirring and drying mechanism (3) is connected to the drying cylinder (2), and comprises a motor (4), a main pulley (5), a cone disk (10), a straight cylinder (12), a secondary pulley (15), an adapter plate (21) and a plurality of scrapers (33). The motor (4) is fixedly connected to one side of the drying cylinder (2), the main pulley (5) is fixedly connected to the output end of the motor (4), the secondary pulley (15) is arranged above the main pulley (5) and is connected to the main pulley (5) through a belt drive, the cone disk (10) is rotatably arranged in the middle of the drying cylinder (2), the straight cylinder (12) is coaxially fixedly connected to the upper end of the cone disk (10), the adapter plate (21) is rotatably arranged above the straight cylinder (12), the middle plate (47) is coaxially arranged below the adapter plate (21) and is rotatably connected to the drying cylinder (2), and a plurality of scrapers (33) are arranged in an equiangular array below the middle plate (47) and revolve along with the rotation of the middle plate (47); The material feeding and discharging mechanism (34) comprises a middle column (35), a plurality of exhaust pipes (36), a plurality of feeding pipes (37) and a plurality of discharging pipes (38); the middle column (35) is slidably arranged coaxially with the drying cylinder (2); the plurality of exhaust pipes (36) are arranged in an array at equal angles along the circumferential direction of the upper part of the middle column (35); the plurality of feeding pipes (37) are arranged at the upper part of the plurality of exhaust pipes (36) and are fixedly connected to the middle column (35); and the plurality of discharging pipes (38) are respectively arranged at the lower part of the plurality of exhaust pipes (36) and are fixedly connected to the middle column (35).

2. The Chinese herbal medicine extract concentration and drying device according to claim 1, characterized in that: The stirring and drying mechanism (3) further comprises a conical copper tube (11), an annular copper tube (13) and a heat source (14); the heat source (14) is fixedly arranged on a side of the drying cylinder (2) away from the motor (4); the conical copper tube (11) is sleeved on the outside of the conical disk (10) and is connected to the output end of the heat source (14); and the annular copper tube (13) is sleeved on the outside of the straight cylinder (12) and is connected to the output end of the heat source (14).

3. The Chinese herbal medicine extract concentration and drying device according to claim 1, characterized in that: The feeding and discharging mechanism (34) further comprises a lifting plate (40), two lifting mechanisms (39), two limit springs (46) and two limit pins (41); the lifting plate (40) is fixedly connected to the lower end of the middle column (35); the two limit pins (41) are symmetrically arranged and the lower ends are fixedly connected to the lifting plate (40); the upper ends of the two limit pins (41) are slidably connected to the bottom of the drying cylinder (2); the two limit springs (46) are respectively sleeved on the outside of the two limit pins (41); the upper ends of the limit springs (46) are fixedly connected to the drying cylinder (2) and the lower ends are fixedly connected to the lifting plate (40); the two lifting mechanisms (39) are respectively arranged at the lower ends of the lifting plate (40) and the output ends are against the lifting plate (40).

4. The Chinese herbal medicine extract concentration and drying device according to claim 1, characterized in that: The material feeding and discharging mechanism (34) further comprises an adapter plate (42), a heat preservation cylinder (43), a material storage cylinder (44) and a material blocking cover (45); the adapter plate (42) is coaxially fixedly connected to the upper end of the drying cylinder (2); the upper ends of the exhaust pipe (36) and the feed pipe (37) are respectively slidably connected to the adapter plate (42); the material storage cylinder (44) is coaxially fixedly connected to the upper end of the adapter plate (42); the upper end of the material storage cylinder (44) is connected to the output end of the material tank (1); the lower end is connected to a plurality of feed pipes (37); the upper part of the heat preservation cylinder (43) is connected to an external valve; the lower end is connected to the upper ends of a plurality of exhaust pipes (36); the upper ends of the plurality of feed pipes (37) are connected to the interlayer between the heat preservation cylinder (43) and the material storage cylinder (44); the material blocking cover (45) is coaxially fixedly connected to the lower end of the middle plate (47) and is slidably connected to the outer wall of the middle column (35).

5. The Chinese herbal medicine extract concentration and drying device according to claim 1, characterized in that: The stirring and drying mechanism (3) further comprises a main bevel gear (6), a first bevel gear (7), a main gear (8) and a main gear ring (9); the main bevel gear (6) is coaxially fixedly connected to the main pulley (5); the first bevel gear (7) is meshed with the main bevel gear (6); the main gear (8) is coaxially fixedly connected to the first bevel gear (7); and the main gear ring (9) is coaxially fixedly connected to the lower end of the cone disk (10) and meshed with the main gear (8).

6. The Chinese herbal medicine extract concentration and drying device according to claim 1, characterized in that: The stirring and drying mechanism (3) further comprises a secondary bevel gear (16), a second bevel gear (17), a secondary gear (18), a secondary gear ring (19) and a transfer tube (20); the secondary bevel gear (16) is coaxially fixedly connected to the secondary pulley (15); the second bevel gear (17) is meshed with the secondary bevel gear (16); the secondary gear (18) is coaxially fixedly connected to the second bevel gear (17); the secondary gear ring (19) is coaxially rotatably connected to the upper part of the drying cylinder (2) and meshed with the secondary gear (18); the transfer tube (20) is key-connected to the secondary gear ring (19) and is fixedly connected to the upper end of the transfer plate (21); the transfer tube (20) is slidably connected to the drying cylinder (2); the rotation of the transfer plate (21) drives a plurality of scrapers (33) below the transfer tube to rotate.

7. The Chinese herbal medicine extract concentration and drying device according to claim 1, characterized in that: The stirring and drying mechanism (3) further comprises a plurality of extrusion sleeves (27), a plurality of contact pressure shafts (28), a plurality of buffer springs (29), a plurality of clamping seats (30) and a plurality of clamping sleeves (31). The plurality of clamping seats (30) are respectively fixedly connected to the upper ends of the plurality of scrapers (33). The plurality of contact pressure shafts (28) are respectively fixedly connected to the upper ends of the plurality of clamping seats (30). The plurality of clamping sleeves (31) are respectively fixedly connected to the upper ends of the plurality of clamping seats (30). The plurality of extrusion sleeves (27) are respectively slidably connected to the plurality of clamping sleeves (31) coaxially and are fixedly connected to the adapter plate (21). The plurality of contact pressure shafts (28) are respectively slidably connected to the plurality of extrusion sleeves (27). The plurality of buffer springs (29) are respectively sleeved on the outside of the plurality of contact pressure shafts (28). The lower ends of the plurality of buffer springs (29) are respectively fixedly connected to the plurality of clamping seats (30) and the upper ends are respectively fixedly connected to the plurality of extrusion sleeves (27).

8. The Chinese herbal medicine extract concentration and drying device according to claim 7, characterized in that: The stirring and drying mechanism (3) further comprises a plurality of positioning snap rings (32), wherein the plurality of positioning snap rings (32) are respectively coaxially fixedly connected to the upper ends of the plurality of contact pressure shafts (28), and when the adapter plate (21) moves upward, the plurality of positioning snap rings (32) are pressed against the upper ends of the corresponding extrusion sleeves (27).

9. The Chinese herbal medicine extract concentration and drying device according to claim 1, characterized in that: The stirring and drying mechanism (3) further comprises two cylinders (25), two push blocks (26), two reset springs (22) and two reset pins (23). The two cylinders (25) are respectively arranged on both sides of the drying cylinder (2). The two push blocks (26) are respectively slidably connected to the side walls of the drying cylinder (2) and are slidably connected to the output ends of the two cylinders (25). The other ends of the two push blocks (26) push the adapter plate (21) to move in the vertical direction. The two reset pins (23) are symmetrically arranged and the lower ends are respectively fixedly connected to the upper ends of the middle plate (47). The reset pins (23) are respectively slidably connected to the adapter plate (21). The two reset springs (22) are respectively sleeved on the outside of the two reset pins (23). The lower ends of the reset springs (22) are fixedly connected to the middle plate (47) and the upper ends are fixedly connected to the adapter plate (21).

10. The Chinese herbal medicine extract concentration and drying device according to claim 9, characterized in that: The stirring and drying mechanism (3) further comprises a plurality of balls (24), which are arranged in an array and rotated at equal angles along the circumferential direction of the upper end of the adapter plate (21), and the balls (24) abut against the lower end of the push block (26).

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