Traditional Chinese medicine extract spray dryer
By designing a hollow round table inner barrel, rotating cleaning board and bristle cleaning and cooling mechanism, the problems of material and liquid bonding and high-temperature coking in the Chinese medicine extract spray dryer are solved, and uniform drying of material and liquid and stability of finished product quality are achieved.
Patent Information
- Application Number
- CN202421597248.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-08
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-07-08
AI Technical Summary
During the drying process of existing Chinese medicine extract spray dryers, the material liquid is prone to stick to the wall of the drying tower, resulting in excessive local temperature and softening, melting and even coking.
A Chinese medicine extract spray dryer is designed, which adopts an inner barrel with a hollow round table structure, combined with a rotating shaft to drive the cleaning board and bristles to clean the inner wall. It is equipped with a cooling mechanism and a hot air mechanism to prevent the adhesion of the material and liquid and control the temperature of the inner barrel. It uses the inclined inner wall to reduce attachment, and reduce the adhesion in the cooling chamber and cool the air-cooled heat dissipation fins to speed up heat dissipation.
Effectively prevent the adhesion, softening and melting of the material liquid in the inner barrel wall, ensure the stability of the drying process and the quality of the finished product, and avoid the coking of the material liquid at high temperatures.
Smart Images
Figure CN223127270U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of traditional Chinese medicine extract drying, in particular to a spray dryer for traditional Chinese medicine extract. Background Art
[0002] Traditional Chinese medicine extract is extracted from the roots, stems and leaves of plants. Especially in the alcohol extraction process, it contains a relatively high sugar content and is prone to softening and melting at high temperatures. The special spray drying device for traditional Chinese medicine extract is the application of centrifugal spray drying technology in the drying of specific materials. It uses a high-speed centrifugal atomizer to atomize viscous liquid materials, and then fully contacts with hot air to complete instant drying and form a powdery or small granular finished product. The dryer is mainly used to solve the spray drying of traditional Chinese medicine extract, plant extract or materials with similar characteristics. The special spray drying device for traditional Chinese medicine extract generally has components such as a slurry tank, a drying tower, an atomizer, a cyclone separator, etc. The atomizer is arranged at the top of the drying tower. The liquid material in the slurry tank is sent to the atomizer through a transfer pump. After being atomized by the atomizer, the material enters the drying tower. The air is heated and then sent into the drying tower to fully contact with the material, instantaneously drying the material into powder or small particles. However, due to the particularity of the material, it is very easy to adhere to the tower wall. In this way, the material liquid adheres to the tower wall and softens, melts or even cokes due to excessive local temperature. Therefore, we propose a spray dryer for traditional Chinese medicine extract. Content of the Utility Model
[0003] The problem to be solved by the utility model is to solve the problem that the existing spray dryer for traditional Chinese medicine extract cannot ensure that the material liquid will not adhere to the wall of the drying tower.
[0004] To solve the above technical problems, the present utility model provides the following technical solution: A spray dryer for traditional Chinese medicine extract, which includes an outer barrel with a hollow cylindrical structure, a hot air mechanism, a feeding mechanism, and a cooling mechanism. The top and bottom of the outer barrel are respectively provided with a barrel cover and a material receiving barrel. The feeding mechanism includes a storage tank and a feeding pump arranged on one side of the outer barrel. One side of the top end of the barrel cover is provided with an atomizer. The storage tank and the feeding pump are connected through a first feeding pipe, and the feeding pump and the atomizer are connected through a second feeding pipe. The middle of the bottom end of the barrel cover is provided with an atomizing nozzle. The output end of the atomizer is connected to an atomizing pipe, and the other end of the atomizing pipe passes through the barrel cover and is connected to the side of the atomizing nozzle. The hot air mechanism includes a hot air blower arranged on one side of the top end of the barrel cover. The output end of the hot air blower is provided with a main air supply pipe, and two air supply branch pipes are respectively connected to both sides of the main air supply pipe. Two blowing boxes are symmetrically arranged on both sides of the bottom end of the barrel cover, and the two air supply branch pipes respectively pass through the barrel cover and are connected to the two blowing boxes. The cooling mechanism includes an inner barrel arranged inside the outer barrel. The inner barrel is a hollow frustum structure, and the top and bottom ends of the inner barrel are respectively at the same horizontal plane as the top and bottom ends of the outer barrel. The outer wall of the bottom of the inner barrel is hermetically welded to the inner wall of the bottom of the outer barrel. A cooling cavity is formed between the outer wall of the inner barrel and the inner wall of the outer barrel. Two support columns are arranged on both sides of the top end of the barrel cover, and a support plate is fixed to the top ends of the two support columns. A rotating motor is arranged on the top end of the support plate. The output end of the rotating motor passes through the support plate and is drivingly connected to a rotating shaft. The rotating shaft passes through the middle of the top end of the barrel cover and extends into the inner barrel. On both sides of the outer wall of the rotating shaft located inside the inner barrel, connecting rods are respectively arranged, and cleaning plates that are in clearance fit with the inner wall of the inner barrel are arranged at the ends of the connecting rods. Brush hairs are arranged on the cleaning plates.
[0005] As a preferred solution of the spray dryer for traditional Chinese medicine extract of the present utility model, wherein: The atomizing nozzle is a ring-shaped cavity structure. The two sides of the top end of the atomizing nozzle are fixed to the bottom end of the barrel cover through first connecting blocks. A plurality of spray openings are evenly distributed at the bottom end of the atomizing nozzle. There is a through hole in the middle of the atomizing nozzle, and the rotating shaft passes through the through hole and extends downward.
[0006] As a preferred solution of the spray dryer for traditional Chinese medicine extract of the present utility model, wherein: The two blowing boxes are cuboid structures with a hollow interior. The two blowing boxes are respectively fixed to both sides of the bottom end of the barrel cover at an angle of 45 degrees through second connecting blocks. The opposite surfaces of the two blowing boxes are respectively evenly distributed with air blowing openings.
[0007] As a preferred solution of the spray dryer for traditional Chinese medicine extract of the present utility model, wherein: A plurality of heat dissipation fins are evenly distributed circumferentially at the position of the barrel cover corresponding to the cooling cavity. One end of the heat dissipation fin is located inside the cooling cavity, and the other end of the heat dissipation fin is located outside the top end of the barrel cover.
[0008] As a preferred embodiment of the spray dryer for traditional Chinese medicine extract of the present utility model, the following is provided: a plurality of fan blades are arranged on the outer wall of the rotating shaft located outside the top end of the barrel cover, and a baffle is arranged between the plurality of fan blades and the main air supply pipe at the top end of the barrel cover.
[0009] As a preferred embodiment of the spray dryer for traditional Chinese medicine extract of the present utility model, the following is provided: a water inlet hole is opened at the top of the barrel cover corresponding to the cooling chamber, a water outlet hole is opened at the bottom of the outer barrel, a water outlet pipe is arranged at the water outlet hole, and a first valve is arranged on the water outlet pipe.
[0010] As a preferred embodiment of the spray dryer for traditional Chinese medicine extract of the present utility model, the following is provided: a discharge pipe is arranged at the bottom end of the material storage barrel, a second valve is arranged on the discharge pipe, and three support legs are arranged circumferentially on the outer wall of the material storage barrel.
[0011] The beneficial effects of the present utility model are as follows: the inner barrel of the present utility model is a hollow frustum structure, and the inclined inner wall can reduce the adhesion of the liquid material. The rotating shaft drives the cleaning plate to rotate, and the bristles on the cleaning plate can sweep the material adhering to the inner wall of the inner barrel, preventing the adhered material from softening, melting or even coking due to the too high temperature of the inner wall of the inner barrel. Cold water can be contained in the cooling chamber to cool the inner barrel, avoiding the too high temperature of the inner wall of the inner barrel. When the rotating shaft rotates, the plurality of fan blades on the outer wall of the rotating shaft also rotate accordingly, thereby air-cooling the heat dissipation fins. The heat dissipation fins accelerate the heat dissipation in the cooling chamber, ensuring the cooling effect of the cooling chamber on the barrel wall of the inner barrel. Description of the Drawings
[0012] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings. Among them:
[0013] Figure 1 It is an overall structure diagram of a spray dryer for traditional Chinese medicine extract.
[0014] Figure 2 It is a structural schematic diagram of a spray dryer for traditional Chinese medicine extract after removing the outer barrel.
[0015] Figure 3 It is a structural schematic diagram of the inside of the inner barrel of a spray dryer for traditional Chinese medicine extract.
[0016] Figure 4 It is a structural schematic diagram of the top end of the barrel cover of a spray dryer for traditional Chinese medicine extract.
[0017] Figure 5 It is Figure 3Enlarged view of area A in [the figure].
[0018] Figure 6 is Figure 3 Enlarged view of area B in [the figure]. Specific implementation mode
[0019] The following specifically introduces the present utility model in conjunction with the accompanying drawings and embodiments.
[0020] Refer to Figures 1 - 6 , this embodiment is a Chinese medicine extract spray dryer, including an outer barrel 100 with a hollow cylindrical structure, a hot air mechanism 200, a feeding mechanism 300, and a cooling mechanism 400. A barrel cover 101 and a material storage barrel 102 are respectively arranged at the top and bottom of the outer barrel 100. The feeding mechanism 300 includes a storage tank 301 and a feeding pump 302 arranged on one side of the outer barrel 100. One side of the top end of the barrel cover 101 is provided with an atomizer 303. The storage tank 301 and the feeding pump 302 are connected through a first feeding pipe 302a, and the feeding pump 302 and the atomizer 303 are connected through a second feeding pipe 302b. The middle part of the bottom end of the barrel cover 101 is provided with an atomizing nozzle 304. The output end of the atomizer 303 is connected to an atomizing pipe 303a, and the other end of the atomizing pipe 303a passes through the barrel cover 101 and is connected to the side of the atomizing nozzle 304. The hot air mechanism 200 includes a hot air blower 201 arranged on one side of the top end of the barrel cover 101. The output end of the hot air blower 201 is provided with a main air supply pipe 201a. Two air supply branch pipes 201b are respectively connected to both sides of the main air supply pipe 201a. Two blowing boxes 202 are symmetrically arranged on both sides of the bottom end of the barrel cover 101. The two air supply branch pipes 201b respectively pass through the barrel cover 101 and are connected to the two blowing boxes 202. The cooling mechanism 400 includes an inner barrel 401 arranged inside the outer barrel 100. The inner barrel 401 is a hollow frustum structure, and the top and bottom ends of the inner barrel 401 are respectively on the same horizontal plane as the top and bottom ends of the outer barrel 100. The outer wall of the bottom of the inner barrel 401 is sealed and welded to the inner wall of the bottom of the outer barrel 100. A cooling cavity 402 is formed between the outer wall of the inner barrel 401 and the inner wall of the outer barrel 100. Two support columns 403 are arranged on both sides of the top end of the barrel cover 101. A support plate 403a is fixed to the top ends of the two support columns 403. A rotating motor 404 is arranged on the top end of the support plate 403a. The output end of the rotating motor 404 passes through the support plate 403a and is drivingly connected to a rotating shaft 404a. The rotating shaft 404a passes through the middle part of the top end of the barrel cover 101 and extends into the inner barrel 401. Two connecting rods 404b are respectively arranged on both sides of the outer wall of the rotating shaft 404a located inside the inner barrel 401. A cleaning plate 404c that is in clearance fit with the inner wall of the inner barrel 401 is arranged at the end of the connecting rod 404b. The cleaning plate 404c is provided with bristles.
[0021] In this embodiment, the atomizing nozzle 304 has an annular cavity structure. The two sides of the top end of the atomizing nozzle 304 are fixed to the bottom end of the bucket lid 101 through the first connecting blocks 304a. A plurality of spray nozzles 304b are evenly distributed at the bottom end of the atomizing nozzle 304. There is a through hole 304c in the middle of the atomizing nozzle 304, and the rotating shaft 404a passes through the through hole 304c and extends downward.
[0022] The plurality of spray nozzles 304b evenly distributed at the bottom end of the atomizing nozzle 304 can evenly spray the atomized liquid material inside the inner barrel 401.
[0023] In this embodiment, the two blowing boxes 202 have a cuboid structure with a hollow interior. The two blowing boxes 202 are respectively fixed to the two sides of the bottom end of the bucket lid 101 at an angle of 45 degrees through the second connecting blocks 202a. The opposite surfaces of the two blowing boxes 202 are respectively evenly provided with air blowing openings 202b.
[0024] Hot air is blown out from the air blowing openings 202b evenly distributed on the two blowing boxes 202. The two blowing boxes 202 are symmetrically arranged on the two sides of the bottom end of the bucket lid 101 at an angle of 45 degrees respectively, and can blow air on the liquid material sprayed from the atomizing nozzle 304. The atomized liquid material is evenly dispersed inside the inner barrel 401 by the blowing from the left and right obliquely above and is heated and dried.
[0025] In this embodiment, a plurality of heat dissipation fins 405 are evenly distributed circumferentially at the position of the bucket lid 101 corresponding to the cooling cavity 402. One end of the heat dissipation fins 405 is located inside the cooling cavity 402, and the other end of the heat dissipation fins 405 is located outside the top end of the bucket lid 101.
[0026] Water can be poured into the cooling cavity 402 to cool the inner barrel 401, and to prevent the temperature of the inner barrel 401 from being too high, which may cause the attached liquid material to soften, melt or even coke.
[0027] In this embodiment, a plurality of fan blades 404d are arranged on the outer wall of the rotating shaft 404a located outside the top end of the bucket lid 101, and a baffle 406 is arranged between the plurality of fan blades 404d and the air supply main pipe 201a at the top end of the bucket lid 101.
[0028] The baffle 406 can block the air supply branch pipes 201b on both sides of the air supply main pipe 201a, and prevent the air supply branch pipes 201b from contacting the rotating fan blades 404d and causing damage to the air supply branch pipes 201b.
[0029] In this embodiment, a water inlet hole 103 is opened at the top of the bucket lid 101 corresponding to the cooling cavity 402. A water outlet hole is opened at the bottom of the outer barrel 100, and a water outlet pipe 104 is arranged at the water outlet hole. A first valve 104a is arranged on the water outlet pipe 104.
[0030] Pour water into the cooling chamber 402 through the water inlet hole 10. If the water temperature in the cooling chamber 402 is too high, the first valve 104a on the water outlet pipe 104 can be opened to drain the water, and then pour water again through the water inlet hole 10.
[0031] In this embodiment, a discharge pipe 102a is provided at the bottom end of the material storage barrel 102, a second valve 102b is provided on the discharge pipe 102a, and three support legs 102c are circumferentially arranged on the outer wall of the material storage barrel 102.
[0032] Open the second valve 102b, and the dried material is discharged through the discharge pipe 102a.
[0033] Working principle: Pour water into the cooling chamber 402 through the water inlet hole 10, and turn on the feeding pump 302, atomizer 303, hot air blower 201, and rotation motor 404. The feeding pump 302 transports the material in the storage tank 301 to the atomizer 303 through the first feeding pipe 302a and the second feeding pipe 302b for atomization. After atomization, the material enters the atomizing nozzle 304 at the bottom end of the barrel cover 101 through the atomizing pipe 303a, and the atomized material is sprayed into the inner barrel 401 by the atomizing nozzle 304. The hot air passes through the main air supply pipe 201a and the two air supply branches 201b and is blown out from the uniformly distributed air outlet holes 202b on the two air blowing boxes 202. The two air blowing boxes 202 are symmetrically arranged on both sides of the bottom end of the barrel cover 101 at an angle of 45 degrees respectively, and can blow and heat the material sprayed from the atomizing nozzle 304. The atomized material is evenly blown and dispersed in the inner barrel 401 by the blowing from the left and right obliquely above for uniform heat drying. Part of the material will adhere to the inner wall of the inner barrel 401. Since the inner barrel 401 is a hollow frustum structure, the inner wall of the inner barrel 401 is inclined at an angle, reducing the adhesion of the material. The rotation motor 404 drives the rotation shaft 404a to rotate, and then drives the cleaning plate 404c to rotate. The bristles on the cleaning plate 404c can sweep the material adhering to the inner wall of the inner barrel 401, preventing the adhered material from softening, melting or even coking due to the too high temperature of the inner wall of the inner barrel 401. When the rotation shaft 404a rotates, it can drive a plurality of fan blades 404d to rotate. The heat dissipation fins 405 absorb the heat of the water in the cooling chamber 402, and the rotation of the plurality of fan blades 404d can perform air cooling on the heat dissipation fins 405, thereby taking away the heat of the water in the cooling chamber 402 and preventing the temperature of the inner wall of the inner barrel 401 from being too high. If the water in the cooling chamber 402 absorbs too much heat and the temperature is too high, the first valve 104a on the water outlet pipe 104 can be opened to drain the water, and then pour water again through the water inlet hole 10.
[0034] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered by the scope of the claims of the present invention.
Claims
1. A Chinese medicine extract spray dryer, characterized in that: It includes an outer barrel (100) with a hollow cylindrical structure, a hot air mechanism (200), a feeding mechanism (300), and a cooling mechanism (400). A barrel cover (101) and a material receiving barrel (102) are respectively arranged at the top and bottom of the outer barrel (100). The feeding mechanism (300) includes a storage bin (301) and a feeding pump (302) arranged on one side of the outer barrel (100). An atomizer (303) is arranged on one side of the top end of the barrel cover (101). The storage bin (301) and the feeding pump (302) are connected through a first feeding pipe (302a), and the feeding pump (302) and the atomizer (303) are connected through a second feeding pipe (302b). A spray head (304) is arranged in the middle of the bottom end of the barrel cover (101). The output end of the atomizer (303) is connected to an atomizing pipe (303a), and the other end of the atomizing pipe (303a) passes through the barrel cover (101) and is connected to the side of the spray head (304). The hot air mechanism (200) includes a hot air blower (201) arranged on one side of the top end of the barrel cover (101). The output end of the hot air blower (201) is provided with a main air supply pipe (201a), and two air supply branch pipes (201b) are respectively connected to both sides of the main air supply pipe (201a). Two air blowing boxes (202) are symmetrically arranged on both sides of the bottom end of the barrel cover (101), and the two air supply branch pipes (201b) respectively pass through the barrel cover (101) and are connected to the two air blowing boxes (202). The cooling mechanism (400) includes an inner barrel (401) arranged inside the outer barrel (100). The inner barrel (401) is a hollow frustum structure, and the top and bottom ends of the inner barrel (401) are respectively on the same horizontal plane as the top and bottom ends of the outer barrel (100). The outer wall of the bottom of the inner barrel (401) is hermetically welded to the inner wall of the bottom of the outer barrel (100). A cooling cavity (402) is formed between the outer wall of the inner barrel (401) and the inner wall of the outer barrel (100). Support columns (403) are arranged on both sides of the top end of the barrel cover (101), and a support plate (403a) is fixed to the top ends of the two support columns (403). A rotating motor (404) is arranged on the top end of the support plate (403a). The output end of the rotating motor (404) passes through the support plate (403a) and is drivingly connected to a rotating shaft (404a). The rotating shaft (404a) passes through the middle of the top end of the barrel cover (101) and extends into the inner barrel (401). Connecting rods (404b) are respectively arranged on both sides of the outer wall of the rotating shaft (404a) located inside the inner barrel (401), and cleaning plates (404c) that are in clearance fit with the inner wall of the inner barrel (401) are arranged at the ends of the connecting rods (404b). Brush hairs are arranged on the cleaning plates (404c).
2. The spray dryer for traditional Chinese medicine extract according to claim 1, characterized in that: The atomizing nozzle (304) has an annular cavity structure. The two sides of the top end of the atomizing nozzle (304) are fixed to the bottom end of the barrel cover (101) through the first connecting blocks (304a). A plurality of spray openings (304b) are evenly distributed at the bottom end of the atomizing nozzle (304). A through hole (304c) is formed in the middle of the atomizing nozzle (304). The rotating shaft (404a) passes through the through hole (304c) and extends downward.
3. The spray dryer for traditional Chinese medicine extract according to claim 1, wherein: The two blowing boxes (202) have a cuboid structure with a hollow interior. The two blowing boxes (202) are respectively fixed to the two sides of the bottom end of the barrel cover (101) at an angle of 45 degrees through the second connecting blocks (202a). The opposite surfaces of the two blowing boxes (202) are respectively evenly distributed with air blowing openings (202b).
4. The spray dryer for traditional Chinese medicine extract according to claim 1, wherein: A plurality of heat dissipation fins (405) are evenly distributed in the circumferential direction at the position of the barrel cover (101) corresponding to the cooling cavity (402). One end of the heat dissipation fin (405) is located inside the cooling cavity (402), and the other end of the heat dissipation fin (405) is located outside the top end of the barrel cover (101).
5. A traditional Chinese medicine extract spray dryer according to claim 1, wherein: A plurality of fan blades (404d) are arranged on the outer wall of the rotating shaft (404a) located outside the top end of the barrel cover (101). A baffle (406) is arranged between the plurality of fan blades (404d) and the air supply main pipe (201a) at the top end of the barrel cover (101).
6. The spray dryer for traditional Chinese medicine extract according to claim 1, wherein: An inlet hole (103) is formed at the top of the barrel cover (101) corresponding to the cooling cavity (402). An outlet hole is formed at the bottom of the outer barrel (100), and a water outlet pipe (104) is arranged at the outlet hole. A first valve (104a) is arranged on the water outlet pipe (104).
7. A traditional Chinese medicine extract spray dryer according to claim 1, characterized in that: A discharge pipe (102a) is arranged at the bottom end of the material storage barrel (102). A second valve (102b) is arranged on the discharge pipe (102a). Three support legs (102c) are arranged on the outer wall of the material storage barrel (102) in the circumferential direction.