A segmented temperature-controlled traditional Chinese medicine spray drying device

Abstract

The utility model relates to the technical field of spray drying, specifically relates to a segmented temperature control traditional chinese medicine spray drying equipment, the utility model discloses a drying tank, the upper surface fixed mounting of drying tank top has the eddy current pipe, the top of drying tank is fixedly installed and has the feeding port, and the feeding port rotation is connected with the rotating part, and the lower end fixed mounting of rotating part has the atomizer, and the outer wall of drying tank is fixedly installed with the temperature control clamping cavity from top to bottom, and temperature detection device is installed in temperature control clamping cavity all, and the outer layer of eddy current pipe is covered with eddy current cavity, and eddy current cavity and eddy current pipe side wall are opened with a plurality of eddy current holes that set along the tangent direction, the utility model sets up the eddy current pipe, and the high pressure hot air is shunted to the eddy current pipe, and the originally high temperature gas is divided into two branches of higher temperature and relatively lower temperature, wherein the higher temperature part is used to dry the atomized medicinal liquid, and the lower temperature wind is led to the temperature control clamping cavity, and the temperature decreases from top to bottom, and the drying tank is controlled to temperature in the segmented mode.

Description

Technical Field

[0001] This utility model relates to the field of spray drying technology, and in particular to a segmented temperature-controlled spray drying device for traditional Chinese medicine. Background Technology

[0002] In the production of traditional Chinese medicine preparations, herbal extracts need to be dried to make powder. These extracts often contain a variety of active ingredients. The drying process must remove excess moisture while avoiding high temperatures that could damage the efficacy of the medicine. How to further adapt to the special characteristics of traditional Chinese medicine components through precise temperature control has become a key direction for optimizing spray drying equipment.

[0003] Currently, spray drying equipment used for Chinese herbal extracts mostly introduces high-pressure hot air into the drying tank to provide the heat source required for drying the atomized extract droplets. In addition, some equipment will install an integral jacket on the outer wall of the drying tank and introduce heat transfer oil, steam or cooling water into the jacket. By adjusting the temperature of the jacket medium, the overall temperature environment inside the drying tank can be regulated.

[0004] However, in practical applications, the response of such temperature control methods is slow, making it difficult to match the gradient temperature requirements of the drying tank from top to bottom and from inside to outside the evaporation of the medicinal liquid in real time. As a result, the temperature in the upper hot air inlet area of ​​the drying tower is often too high, causing some heat-sensitive Chinese medicine components to be deactivated; while the temperature in the middle and lower areas is too low due to heat loss, resulting in the semi-dry powder having excessive moisture content and even adhering to the tank wall, ultimately affecting the yield and quality stability of the finished product. Utility Model Content

[0005] In view of the above-mentioned shortcomings of the existing technology, this utility model provides a segmented temperature-controlled spray drying device for traditional Chinese medicine, which can effectively solve the problems mentioned in the background technology.

[0006] To achieve the above objectives, this utility model provides the following technical solution: This utility model provides a segmented temperature-controlled spray drying device for traditional Chinese medicine, including a drying tank. A vortex tube is fixedly installed on the upper surface of the top of the drying tank. A feeding port is fixedly installed at the top of the drying tank. A rotating component is rotatably connected to the feeding port. The lower end of the rotating component extends into the interior of the drying tank. An atomizer is fixedly installed at the lower end of the rotating component. Temperature-controlled cavities are fixedly installed from top to bottom on the outer wall of the drying tank. Connecting pipes are fixedly connected between the temperature-controlled cavities. A pressure port is fixedly installed on the outer side of each temperature-controlled cavity, and a temperature detection device is installed inside each temperature-controlled cavity.

[0007] Furthermore, the outer layer of the vortex tube is covered with a vortex cavity, and the vortex cavity and the side wall of the vortex tube are provided with a number of vortex holes arranged in the tangential direction, and an air inlet is fixedly installed at the upper end of the vortex cavity.

[0008] Furthermore, a heat pipe is provided on the left side of the vortex tube, which is connected to the feeding port, and a cold pipe is provided on the right side of the vortex tube, which is connected to the uppermost temperature control cavity. The length of the heat pipe is greater than that of the cold pipe.

[0009] Furthermore, each temperature control chamber is equipped with a rotating ring, which is connected to the outer wall of the drying tank. Ventilation holes are evenly distributed on the rotating ring, and the drying tank is provided with tangential through holes corresponding to the vent holes. The diameter and direction of the tangential through holes are consistent with those of the vent holes. Several drive blades are arranged radially and obliquely on the outer side of the rotating ring.

[0010] Furthermore, a motor is fixedly installed at the top of the drying tank, and the output end of the motor meshes with the rotating parts through gears.

[0011] Furthermore, an annular chamber is provided in the feeding port, which is connected to the heat pipe, and an annular notch is provided at the lower end of the annular chamber, with the opening of the annular notch facing the atomizer.

[0012] The beneficial effects of this utility model are: 1. This utility model is equipped with a vortex tube, which splits the high-pressure hot air, dividing the original high-temperature gas into two branches with higher and relatively lower temperatures. The higher-temperature part is used to dry the atomized drug liquid, while the lower-temperature air is directed to the temperature control chamber, where the temperature decreases from top to bottom, thus controlling the temperature of the drying tank in stages.

[0013] 2. This utility model is also equipped with a rotating ring. When the rotating ring rotates, the tangential through hole and the vent hole are intermittently connected, and pulsed air is sprayed into the drying tank to form a spiral airflow tangential to the inner wall of the drying tank. This allows the dried powder to remain in each temperature layer and avoids collision with the inner wall of the drying tank, which would cause the semi-dry powder to stick together. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein: Figure 1 This is a schematic diagram of the structure of a segmented temperature-controlled spray drying device for traditional Chinese medicine according to this utility model.

[0015] Figure 2 This is a cross-sectional structural diagram of a segmented temperature-controlled spray drying device for traditional Chinese medicine according to this utility model.

[0016] Figure 3 This utility model relates to a segmented temperature-controlled spray drying device for traditional Chinese medicine. Figure 2 Schematic diagram of the structure at point A in the middle.

[0017] Figure 4 This is a schematic diagram of the rotating structure of a segmented temperature-controlled spray drying device for traditional Chinese medicine according to this utility model.

[0018] Explanation of reference numerals in the attached figures: 1. Drying tank; 2. Motor; 3. Feeding port; 4. Rotating component; 5. Air inlet; 6. Heat pipe; 7. Cold pipe; 8. Temperature control clamp; 9. Pressurization port; 10. Rotating ring; 11. Vent hole; 12. Connecting pipe; 13. Tangential through hole; 14. Atomizer; 15. Drive vane; 16. Vortex chamber; 17. Vortex hole; 18. Vortex tube. Detailed Implementation

[0019] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Example 1:

[0020] Reference Figure 1-3 This is the first embodiment of the present invention, which provides a segmented temperature-controlled spray drying device for traditional Chinese medicine, including a drying tank 1. A vortex tube 18 is fixedly installed on the upper surface of the top of the drying tank 1. A feeding port 3 is fixedly installed at the top of the drying tank 1. The feeding port 3 is funnel-shaped to effectively reduce material residue. A rotating component 4 is rotatably connected to the feeding port 3. The lower end of the rotating component 4 extends into the interior of the drying tank 1. An atomizer 14 is fixedly installed at the lower end of the rotating component 4. The atomizer 14 adopts a centrifugal atomizing disc, and its rotation speed can be adjusted by an external controller. Temperature-controlled cavities 8 are fixedly installed on the outer wall of the drying tank 1 from top to bottom. Connecting pipes 12 are fixedly connected between the temperature-controlled cavities 8. The connecting pipes 12 are made of stainless steel and are equipped with one-way valves. Pressurization ports 9 are fixedly installed on the outer side of each temperature-controlled cavity 8, and temperature detection devices are installed in each temperature-controlled cavity 8 to detect and adjust the temperature of the gas in each temperature-controlled cavity 8.

[0021] The outer layer of the vortex tube 18 is covered with a vortex cavity 16. The vortex cavity 16 and the side wall of the vortex tube 18 are provided with a number of vortex holes 17 arranged in the tangential direction, and the opening direction is biased towards the heat pipe 6. The vortex holes 17 guide the high-pressure gas entering from the air inlet 5 into the heat pipe 6 in a spiral shape at high speed. The upper end of the vortex cavity 16 is fixedly installed with an air inlet 5 for introducing the initial hot air.

[0022] A heat pipe 6 is provided on the left side of the vortex tube 18. The heat pipe 6 is a high-temperature resistant stainless steel tube. The heat pipe 6 is connected to the cavity of the feed port 3 and can preheat the incoming extract. A cold pipe 7 is provided on the right side of the vortex tube 18. The end of the cold pipe 7 is connected to the uppermost temperature control clamp cavity 8 and a sealing gasket is provided at the connection. The length of the heat pipe 6 is greater than that of the cold pipe 7. The end of the heat pipe 6 heats the initial hot air and relatively reduces the temperature of the end of the cold pipe 7 for subsequent segmented temperature control processes. Example 2:

[0023] Reference Figure 1-4 This is the second embodiment of the present invention, which differs from the first embodiment in that: Each temperature-controlled clamping cavity 8 is equipped with a rotating ring 10. The inner diameter of the rotating ring 10 is slightly larger than the outer diameter of the drying tank 1. It is connected by a sliding groove and can rotate freely. Ventilation holes 11 are evenly distributed on the rotating ring 10. The ventilation holes 11 are equidistantly distributed along the circumference of the rotating ring 10. The drying tank 1 is provided with tangential through holes 13 corresponding to the ventilation holes 11. The tangential through holes 13 are inclined along the tangent of the side wall of the drying tank 1. The diameter and direction of the tangential through holes 13 are consistent with those of the ventilation holes 11, guiding the airflow to form a pulse vortex. Several driving vanes 15 are arranged radially and obliquely on the outer side of the rotating ring 10. The driving vanes 15 can use the supplementary gas entering through the pressurization port 9 to drive the rotating ring 10 to rotate.

[0024] A motor 2 is fixedly installed at the top of the drying tank 1 and is fixed to the top of the tank by a bracket. The output end of the motor 2 is engaged with the rotating part 4 by gears.

[0025] An annular chamber is provided in the feeding port 3. The annular chamber is connected to the heat pipe 6 to introduce preheated hot air. An annular notch is provided at the lower end of the annular chamber. The opening of the annular notch faces the atomizer 14. When the atomized medicine is sprayed out from the atomizer 14, it comes into direct contact with the hot air for efficient drying.

[0026] The remaining structure is the same as that in Example 1.

[0027] The specific operating principle of this utility model is as follows: In use, the herbal extract is fed into the feeding port 3. The motor 2 at the top of the drying tank 1 drives the rotating part 4 to rotate through gears. The atomizer 14 at the lower end of the rotating part 4 rotates accordingly, atomizing the extract into small droplets. At the same time, high-pressure gas enters the vortex tube 18 and interacts with several vortex holes 17 arranged along the tangent through the vortex cavity 16 to form a swirling flow. The separated hot air is transported through the heat pipe 6. Part of the hot air enters the annular chamber in the feeding port 3 and is blown from the annular notch at the lower end of the annular chamber towards the droplets near the atomizer 14. The separated relatively cold air enters the uppermost temperature-controlled clamping chamber 8 through the cold pipe 7.

[0028] The atomized droplets begin to dehydrate and dry under the action of hot air delivered by heat pipe 6. The gas in the temperature control chamber 8 is injected into the drying tank 1 along the tangential direction through the vent 11 on the rotating ring 10 and the corresponding tangential through hole 13 on the drying tank 1, forming a pulsed vortex airflow. This drives the droplets to move evenly in the tank to avoid local accumulation. The airflow pumped in by the pressurization port 9 pushes the drive vane 15 on the rotating ring 10. The intermittently connected vent 11 and tangential through hole 13 blow air into the drying tank 1 in a pulsed form, preventing the semi-dry powder from sticking to the inner wall of the drying tank 1. Thus, the temperature of the gas pumped in by the pressurization port 9 is adjusted by the temperature detection device inside each temperature control chamber 8, thereby constructing a gradient temperature field at different heights.

[0029] The dried medicinal powder moves towards the bottom of the drying tank 1 and is collected under the action of gravity and vortex airflow. At the same time, the temperature control chamber 8 continuously maintains the temperature inside the tank through medium circulation and gas replenishment through the pressurization port 9. The vortex tube 18 continuously separates hot and cold airflows, the heat pipe 6 ensures the supply of hot air to the atomization area, and the cold pipe 7 provides a relative cold source for the temperature control chamber 8. The rotating ring 10 rotates with the airflow to further optimize the airflow guidance effect of the vent hole 11 and the tangential through hole 13, so that the entire drying process is carried out efficiently, which reduces the risk of medicinal powder sticking to the wall and protects the active ingredients of traditional Chinese medicine.

[0030] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A segmented temperature-controlled spray drying device for traditional Chinese medicine, comprising a drying tank (1), characterized in that: A vortex tube (18) is fixedly installed on the upper surface of the top of the drying tank (1). A feeding port (3) is fixedly installed at the top of the drying tank (1). A rotating part (4) is rotatably connected to the feeding port (3). The lower end of the rotating part (4) extends into the interior of the drying tank (1). An atomizer (14) is fixedly installed at the lower end of the rotating part (4). Temperature control cavities (8) are fixedly installed on the outer wall of the drying tank (1) from top to bottom. A connecting pipe (12) is fixedly connected between the temperature control cavities (8). A pressurizing port (9) is fixedly installed on the outer side of each temperature control cavity (8). A temperature detection device is installed inside each temperature control cavity (8).

2. The segmented temperature-controlled spray drying equipment for traditional Chinese medicine according to claim 1, characterized in that, The outer layer of the vortex tube (18) is covered with a vortex cavity (16). The vortex cavity (16) and the side wall of the vortex tube (18) are provided with a number of vortex holes (17) arranged in the tangential direction, and an air inlet (5) is fixedly installed at the upper end of the vortex cavity (16).

3. The segmented temperature-controlled spray drying equipment for traditional Chinese medicine according to claim 2, characterized in that, A heat pipe (6) is provided on the left side of the vortex tube (18), and the heat pipe (6) is connected to the feeding port (3). A cold pipe (7) is provided on the right side of the vortex tube (18), and the cold pipe (7) is connected to the uppermost temperature control cavity (8). The length of the heat pipe (6) is greater than that of the cold pipe (7).

4. The segmented temperature-controlled spray drying equipment for traditional Chinese medicine according to claim 1, characterized in that, Each temperature control cavity (8) is provided with a rotating ring (10). The rotating ring (10) is connected to the outer wall of the drying tank (1). The rotating ring (10) is provided with air vents (11) evenly. The drying tank (1) is provided with tangential through holes (13) corresponding to the air vents (11). The diameter and direction of the tangential through holes (13) are the same as those of the air vents (11). Several driving blades (15) are arranged radially and obliquely on the outer side of the rotating ring (10).

5. The segmented temperature-controlled spray drying equipment for traditional Chinese medicine according to claim 1, characterized in that, A motor (2) is fixedly installed at the top of the drying tank (1), and the output end of the motor (2) meshes with the rotating part (4) through gears.

6. The segmented temperature-controlled spray drying equipment for traditional Chinese medicine according to claim 1, characterized in that, The feeding port (3) has an annular chamber, which is connected to the heat pipe (6), and the lower end of the annular chamber has an annular notch, the opening of which faces the atomizer (14).

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