A high-efficiency drying device for pharmaceuticals

Abstract

This utility model discloses a high-efficiency drying device for pharmaceuticals, relating to the field of pharmaceutical technology. Its key technical features include: a drying chamber with a hinged door on one side; multiple exhaust holes on the top side wall of the drying chamber; a gas supply assembly connected to the bottom of the drying chamber; a heating chamber located at the bottom of the drying chamber, connected to the gas supply assembly at its bottom; multiple layers of electric heating mesh horizontally arranged inside the heating chamber; an air outlet on the top of the heating chamber; and an upward-blowing fan inside the air outlet. A placement frame is installed inside the drying chamber, its top connected to the top of the drying chamber via a lifting assembly. The placement frame includes multiple vertically distributed limiting rings supporting a placement bucket. A supporting ring adapted to the limiting rings is fixedly installed on the top of the placement bucket. Multiple airflow holes are evenly distributed on the side wall of the placement bucket, which is used to hold medicinal materials. This utility model balances efficiency and compactness in drying.

Description

Technical Field

[0001] This utility model relates to the field of pharmaceutical technology, and in particular to a high-efficiency drying device for pharmaceutical applications. Background Technology

[0002] In the pharmaceutical industry, drying Chinese medicinal herbs is a crucial step. After harvesting, these herbs often contain high moisture content. Without timely and effective drying, they are highly susceptible to the growth of bacteria, mold, and other microorganisms, leading to spoilage and affecting their efficacy and quality. Therefore, the drying process not only removes excess moisture and extends shelf life but also improves the physical and chemical properties of the herbs, providing high-quality and stable raw materials for subsequent processing and formulation. Typically, drying Chinese medicinal herbs requires comprehensive consideration of various factors, such as temperature, humidity, and ventilation, to ensure maximum retention of the effective components and to guarantee uniform quality and good color after drying.

[0003] To meet the pharmaceutical industry's demand for drying Chinese medicinal herbs and improve drying efficiency and quality, various high-efficiency drying devices for pharmaceutical applications have emerged. For example, patent application number CN202120435149.8 discloses a high-efficiency drying device for pharmaceutical herbs, which improves drying efficiency to a certain extent.

[0004] However, existing high-efficiency drying equipment for pharmaceutical applications still has some shortcomings in practical applications. A prominent issue is the inability to effectively balance intensification and drying efficiency. While some drying devices achieve high drying efficiency, they require a large floor space. Other devices, although more compact and efficient, fall short in terms of drying efficiency. Utility Model Content

[0005] In order to solve the above-mentioned technical problems, the purpose of this utility model is to provide a high-efficiency drying device for pharmaceuticals that combines intensification and drying efficiency.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A high-efficiency drying device for pharmaceuticals includes a drying chamber with a door hinged to one side. Multiple exhaust holes are provided on the top side wall of the drying chamber. A gas supply assembly is connected to the bottom of the drying chamber. A heating chamber is located at the bottom of the drying chamber and is connected to the gas supply assembly. Multiple layers of electric heating mesh are horizontally arranged inside the heating chamber. An air outlet is located on the top of the heating chamber, and an upward-blowing fan is installed inside the air outlet. A placement frame is provided inside the drying chamber, and the top of the placement frame is connected to the top of the drying chamber via a lifting assembly. The placement frame includes multiple vertically distributed limiting rings supporting a placement bucket. A supporting ring adapted to the limiting rings is fixedly installed on the top of the placement bucket. Multiple airflow holes are evenly distributed on the side wall of the placement bucket, which is used to place medicinal materials.

[0008] Preferably, the side wall of the placement frame is slidably connected to the inner wall of the drying oven.

[0009] Preferably, the edge of the placement frame is fixedly provided with a vertical sliding block, and the inner wall of the drying oven is provided with a sliding groove that matches the sliding block.

[0010] Preferably, the air supply assembly includes a vertical air intake pipe, on which an air intake fan and a dehumidifier are installed, and a dustproof screen is installed at the air inlet of the air intake pipe.

[0011] Preferably, the lifting assembly is an electric cylinder.

[0012] Preferably, a heat insulation bracket is provided between the multiple layers of electric heating mesh, the heat insulation bracket is used to separate adjacent electric heating meshes by a certain distance, and the heat insulation bracket is made of ceramic material.

[0013] Preferably, the outer cover of the air blowing fan is provided with a protective mesh cover, which is fixed to the edge of the air outlet of the heating box by bolts.

[0014] Preferably, the inner wall of the placement bucket is provided with a plurality of raised auxiliary turning blocks, which are evenly distributed on the inner wall of the placement bucket and are used to help the medicinal materials turn over when the placement bucket moves up and down.

[0015] This utility model has the following beneficial effects:

[0016] I. Balancing Intensive Use and Drying Efficiency: This device successfully balances intensive use and high drying efficiency through its ingenious structural design. In terms of intensive use, the overall structure is compact, making efficient use of space and avoiding the problem of excessive floor space. Regarding drying efficiency, the bottom of the drying chamber is connected to an air supply component, and a heating chamber is installed at the bottom of the chamber. Inside the heating chamber, multiple layers of electric heating mesh are horizontally arranged, and a blower at the top air outlet can quickly generate and deliver hot air to dry the medicinal materials placed in the storage bins, effectively improving drying efficiency and solving the problem that existing devices cannot adequately balance both aspects.

[0017] II. Excellent Uniform Drying Effect: The placement frame includes multiple vertically distributed limiting rings that support the placement barrel, and multiple airflow holes are evenly opened on the side wall of the placement barrel. This design allows hot air to pass evenly through the airflow holes and act on the medicinal materials inside the placement barrel, ensuring that all parts of the medicinal materials are heated evenly. This avoids differences in drying effect caused by uneven heating in certain areas and ensures the uniform quality of the dried medicinal materials.

[0018] Third, it facilitates the placement and removal of medicinal materials: A hinged door is located on one side of the drying chamber, allowing operators to easily open the door for placing and removing medicinal materials. Simultaneously, the top of the placement frame is connected to the top of the drying chamber via a lifting mechanism. By controlling the lifting mechanism, the height of the placement frame can be easily adjusted, further facilitating the placement and removal of medicinal materials within the storage container and improving operational convenience.

[0019] IV. Ensuring Air Quality: The air supply assembly includes a vertical air intake pipe, on which an intake fan and a dehumidifier are installed. A dust filter is fitted at the air inlet. The intake fan ensures a sufficient supply of air, the dehumidifier dehumidifies the incoming air, and the dust filter filters dust and other impurities from the air, providing dry, clean hot air for the drying process. This improves the drying quality of the medicinal materials and prevents contamination from dust and other impurities.

[0020] V. Ensuring Stable Operation and Safety of the Electric Heating Network: A ceramic-made heat-insulating bracket is installed between the multiple layers of electric heating networks, separating adjacent networks by a certain distance. The ceramic material has excellent heat insulation properties, preventing mutual interference between heating networks and ensuring stable operation of each layer, while also avoiding safety hazards caused by excessively close proximity of the heating networks. Furthermore, the outer casing of the air blower is equipped with a protective mesh cover bolted to the edge of the heating box's air outlet, preventing operators from accidentally touching the air blower and providing safety protection.

[0021] VI. Promoting the turning of medicinal materials and improving drying effect: The inner wall of the placement drum is equipped with multiple evenly distributed raised auxiliary turning blocks. When the placement drum moves up and down, the auxiliary turning blocks help to turn the medicinal materials. After the medicinal materials are turned, the hot air can come into more thorough contact with the medicinal materials, further improving the drying efficiency and ensuring that the medicinal materials are dried more thoroughly.

[0022] 7. Stable Operation and Precise Guidance: The side wall of the placement frame is slidably connected to the inner wall of the drying chamber. Specifically, vertical sliding blocks are fixedly installed along the edge of the placement frame, and the inner wall of the drying chamber has grooves that match the sliding blocks. This design allows the placement frame to run stably along the grooves during lifting and lowering, ensuring precise guidance and preventing swaying or deviation of the placement frame during lifting and lowering, thus guaranteeing the overall stability and reliability of the device. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a cross-sectional view of the first embodiment of the present invention.

[0025] Figure 2 This is a cross-sectional view of the placement bucket according to the first embodiment of this utility model.

[0026] Figure 3 This is a cross-sectional view of the second embodiment of the present invention.

[0027] In the diagram: 1. Drying oven; 101. Oven door; 102. Exhaust vent; 201. Heating chamber; 202. Electric heating grid; 203. Air blower; 301. Placement frame; 311. Limiting ring; 312. Sliding block; 313. Slide groove; 302. Lifting assembly; 401. Placement bucket; 402. Support ring; 403. Auxiliary turning block; 501. Air inlet pipe; 502. Air inlet fan; 503. Dehumidifier; 504. Dustproof net; 601. Heat insulation bracket; 602. Protective net cover. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0029] First embodiment

[0030] like Figures 1 to 2As shown, a high-efficiency drying device for pharmaceuticals includes a drying chamber 1. A door 101 is hinged to one side of the drying chamber 1. Multiple exhaust holes 102 are provided on the top side wall of the drying chamber 1. An air supply assembly is connected to the bottom of the drying chamber 1. A heating chamber 201 is installed at the bottom inside the drying chamber 1, and its bottom is connected to the air supply assembly. Multiple layers of electric heating mesh 202 are horizontally arranged inside the heating chamber 201. An air outlet is provided at the top of the heating chamber 201, and upward-blowing air is provided within the air outlet. Fan 203; A placement frame 301 is provided inside the drying box 1. The top of the placement frame 301 is connected to the top of the drying box 1 through a lifting component 302. The placement frame 301 includes vertically distributed multi-layer limiting rings 311. The limiting rings 311 support the placement bucket 401. The top of the placement bucket 401 is fixedly provided with a supporting ring 402 that matches the limiting rings 311. Multiple airflow holes are evenly opened on the side wall of the placement bucket 401. The placement bucket 401 is used to place medicinal materials.

[0031] like Figures 1 to 2 As shown, the air supply assembly starts, drawing in outside air and delivering it through the air inlet pipe 501 to the connected heating chamber 201. During the air intake process, if the air inlet pipe 501 is equipped with a dust filter 504, it can filter out dust and other impurities in the air, ensuring the cleanliness of the air entering the heating chamber 201; if a dehumidifier 503 is also present, it can dehumidify the air, making the incoming air dry. Multiple layers of electric heating mesh 202 are horizontally arranged inside the heating chamber 201. When air enters the heating chamber 201, it flows through the multiple layers of electric heating mesh 202. The electric heating mesh 202 is energized and heats up, converting electrical energy into heat energy, heating the flowing air and raising its temperature to form hot air. An upward-blowing air fan 203 is installed in the air outlet at the top of the heating chamber 201. After the air fan 203 starts, it blows the hot air generated inside the heating chamber 201 upwards, allowing the hot air to enter the drying chamber 1. Hot air heats and dries the medicinal materials in the container 401 inside the drying oven 1, causing the moisture in the medicinal materials to evaporate into water vapor. Multiple exhaust holes 102 on the top side wall of the drying oven 1 serve to exhaust the air containing water vapor inside the drying oven 1, forming an air circulation to ensure the dryness and flow of the hot air inside the drying oven 1, and to continuously dry the medicinal materials.

[0032] The drying chamber 1 is equipped with a placement frame 301, which includes multiple vertically distributed limiting rings 311 for supporting the placement container 401. A support ring 402, adapted to the limiting rings 311, is fixedly installed on the top of the placement container 401. By placing the support ring 402 of the placement container 401 onto the limiting rings 311, the placement container 401 is stably placed on the placement frame 301, allowing the medicinal materials to be placed inside for drying. Multiple airflow holes are evenly distributed on the side wall of the placement container 401, allowing hot air to enter the interior of the container 401 evenly and fully contact the medicinal materials, ensuring uniform heating of all parts and improving the drying effect. The top of the placement frame 301 is connected to the top of the drying chamber 1 via a lifting assembly 302. When it is necessary to place or remove medicinal materials, the placement frame 301 can be raised or lowered by controlling the lifting assembly 302 (such as an electric cylinder). When the placement frame 301 rises, the door 101 opens, making it easier for the operator to place the placement bucket 401 on or remove it from the limiting ring 311. When the placement frame 301 descends, the placement bucket 401 can be placed in a suitable position inside the drying chamber 1 for drying operations, thus improving the convenience of operation.

[0033] like Figure 1 As shown, the side wall of the placement frame 301 is slidably connected to the inner wall of the drying chamber 1. Vertical sliding blocks 312 are fixedly installed on the edge of the placement frame 301, and a groove 313 adapted to the sliding block 312 is provided on the inner wall of the drying chamber 1. The two constitute a sliding connection structure. When the lifting assembly 302 (electric cylinder) drives the placement frame 301 to rise or fall, the sliding block 312 moves linearly along the groove 313. This design provides precise guidance for the lifting and lowering of the placement frame 301, ensuring that the placement frame 301 remains stable during movement without shaking or shifting. This ensures that the medicinal materials placed in the placement container 401 on the placement frame 301 can be dried smoothly, avoiding spillage or uneven drying due to instability of the placement frame 301.

[0034] like Figures 1 to 2As shown, the air supply assembly includes a vertical air inlet pipe 501, on which an air intake fan 502 and a dehumidifier 503 are installed. A dust filter 504 is installed at the air inlet of the air inlet pipe 501. The air inlet pipe 501 of the air supply assembly is vertically arranged, and the air intake fan 502 is installed on the air inlet pipe 501. When the air intake fan 502 is started, a negative pressure is formed in the air inlet pipe 501, drawing outside air into the air inlet pipe 501. The dust filter 504 installed at the air inlet can filter dust, particles and other impurities in the air, preventing these impurities from entering the drying chamber 1 and contaminating the medicinal materials. The dehumidifier 503 installed on the air inlet pipe 501 dehumidifies the drawn-in air, reducing the humidity of the air and making the air entering the heating chamber 201 dry. After entering the heating chamber 201, the dry air can absorb heat more efficiently, forming dry hot air, which is beneficial to improving the drying quality and efficiency of the medicinal materials.

[0035] like Figures 1 to 2 As shown, the lifting assembly 302 is an electric cylinder. An electric cylinder is an electrically driven device that converts the rotary motion of an electric motor into the linear reciprocating motion of a push rod. By controlling the extension and retraction of the electric cylinder, the placement frame 301 can be raised and lowered. When medicinal materials need to be placed or removed, the electric cylinder is extended to push the placement frame 301 upward, bringing the placement container 401 closer to the door 101 for easy operation. After the medicinal materials are placed, the electric cylinder is retracted to pull the placement frame 301 downward, placing the placement container 401 in a suitable position within the drying chamber 1 for drying. The electric cylinder has advantages such as high control precision, stable operation, and fast response speed, enabling precise control of the lifting height and speed of the placement frame 301 to meet the needs of different drying operations.

[0036] like Figures 1 to 2 As shown, multiple raised auxiliary turning blocks 403 are evenly distributed on the inner wall of the placement barrel 401. During the drying process, when the placement frame 301 moves up and down under the drive of the lifting component 302, the placement barrel 401 also moves up and down accordingly. At this time, the medicinal materials inside the placement barrel 401 will collide and rub against the auxiliary turning blocks 403, causing the medicinal materials to turn over under the action of the auxiliary turning blocks 403. After the medicinal materials are turned over, the hot air can come into more thorough contact with all surfaces of the medicinal materials, breaking up any water vapor layer that may form on the surface of the medicinal materials, improving the heat transfer efficiency, promoting the evaporation of moisture inside the medicinal materials, thereby making the medicinal materials dry more evenly and thoroughly, shortening the drying time, and improving the drying effect.

[0037] Second embodiment

[0038] like Figure 3As shown, a heat-insulating bracket 601 is provided between the multi-layer electric heating mesh 202. The heat-insulating bracket 601 is used to separate adjacent electric heating meshes 202 by a certain distance and is made of ceramic material. The multi-layer electric heating mesh 202 is set inside the heating chamber 201. When powered, each layer of electric heating mesh 202 can convert electrical energy into heat energy. The multi-layer structure increases the heat generation area, allowing the air entering the heating chamber 201 to have more sufficient contact with the electric heating mesh 202, thereby absorbing heat more efficiently, rapidly heating up to form hot air, and providing a sufficient heat source for the subsequent drying of medicinal materials. The heat-insulating bracket 601, made of ceramic material, separates adjacent electric heating meshes 202 by a certain distance. Ceramic has excellent heat insulation properties and can effectively prevent direct heat transfer between adjacent electric heating meshes 202, avoiding thermal short circuits. If the electric heating meshes 202 are too close together without insulation, localized overheating may occur, which will not only reduce the service life of the electric heating meshes 202 but may also cause safety hazards, such as damage to the electric heating meshes 202 or even fire. The presence of the insulation bracket 601 ensures that each layer of electric heating meshes 202 can work stably in a relatively independent space, maintain a suitable temperature, and ensure the safety and stability of the heating process.

[0039] like Figure 3 As shown, the air blower 203 is covered with a protective mesh cover 602, which is bolted to the edge of the air outlet of the heating chamber 201. The air blower 203 is installed inside the air outlet at the top of the heating chamber 201. When the air blower 203 is started, its blades rotate at high speed, creating a negative pressure at the air outlet, which blows the hot air heated by the electric heating mesh 202 inside the heating chamber 201 upwards, allowing the hot air to enter the drying chamber 1 to dry the medicinal materials placed inside. At the same time, the hot air flows inside the drying chamber 1 and exchanges heat with the medicinal materials before being discharged through the exhaust hole 102 on the top side wall of the drying chamber 1, forming an air circulation and continuously providing dry hot air for the drying process to ensure the drying effect. The protective mesh cover 602 covers the outside of the air blower 203 and is bolted to the edge of the air outlet of the heating chamber 201. During the operation of the drying device, the protective mesh cover 602 serves as a barrier to prevent operators from accidentally touching the blades of the high-speed rotating air blower 203, thus avoiding safety accidents such as finger cuts. At the same time, it also prevents small objects (such as tools and debris) from falling into the heating chamber 201, damaging the air blower 203 or affecting its normal operation, ensuring the safety and reliability of the device.

[0040] The above are merely specific embodiments of this utility model, but the technical features of this utility model are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on this utility model to solve essentially the same technical problems and achieve essentially the same technical effects are all covered within the protection scope of this utility model.

Claims

1. A high-efficiency drying device for pharmaceutical use, comprising a drying chamber (1), wherein a door (101) is hinged to one side of the drying chamber (1), characterized in that: The top side wall of the drying box (1) is provided with multiple exhaust holes (102). The bottom of the drying box (1) is connected to an air supply component. A heating box (201) is provided at the bottom of the drying box (1). The bottom of the heating box (201) is connected to the air supply component. A multi-layer electric heating mesh (202) is horizontally placed inside the heating box (201). An air outlet is provided at the top of the heating box (201). An upward-blowing air fan (203) is provided inside the air outlet. A placement frame is provided inside the drying box (1). 301), the top of the placement frame (301) is connected to the top of the drying box (1) through a lifting assembly (302). The placement frame (301) includes vertically distributed multi-layer limiting rings (311). The limiting rings (311) support the placement bucket (401). The top of the placement bucket (401) is fixedly provided with a supporting ring (402) that is adapted to the limiting rings (311). Multiple airflow holes are evenly opened on the side wall of the placement bucket (401). The placement bucket (401) is used to place medicinal materials.

2. The pharmaceutical high-efficiency drying device according to claim 1, characterized in that: The side wall of the placement frame (301) is slidably connected to the inner wall of the drying oven (1).

3. The pharmaceutical high-efficiency drying device according to claim 2, characterized in that: The placement frame (301) is fixedly provided with a vertical sliding block (312) on its edge, and the inner wall of the drying box (1) is provided with a sliding groove (313) that matches the sliding block (312).

4. The pharmaceutical high-efficiency drying device according to claim 1, characterized in that: The air supply assembly includes a vertical air inlet pipe (501), on which an air intake fan (502) and a dehumidifier (503) are installed, and a dustproof net (504) is installed at the air inlet of the air inlet pipe (501).

5. The pharmaceutical high-efficiency drying device according to claim 1, characterized in that: The lifting assembly (302) is an electric cylinder.

6. The pharmaceutical high-efficiency drying device according to claim 1, characterized in that: A heat insulation bracket (601) is provided between the multiple layers of electric heating mesh (202). The heat insulation bracket (601) is used to separate adjacent electric heating mesh (202) by a certain distance. The heat insulation bracket (601) is made of ceramic material.

7. The pharmaceutical high-efficiency drying device according to claim 1, characterized in that: The outer cover of the air blower (203) is provided with a protective mesh cover (602), which is fixed to the edge of the air outlet of the heating box (201) by bolts.

8. The pharmaceutical high-efficiency drying device according to claim 1, characterized in that: The inner wall of the placement bucket (401) is provided with a plurality of raised auxiliary turning blocks (403). The auxiliary turning blocks (403) are evenly distributed on the inner wall of the placement bucket (401). The auxiliary turning blocks (403) are used to help the medicinal materials turn over when the placement bucket (401) moves up and down.

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