Hot air circulation drying machine for processing dangshen huangqi beverage

Abstract

The utility model discloses a hot -blast circulation drying -machine for party ginseng astragalus membranaceus beverage processing belongs to drying -machine technical field, including the box, be provided with heating box, circulating fan, air outlet main road and air return main road in the box, the box has the drying -down area of upper portion and the equipment area of lower portion, and a plurality of independent drying -down chambers are arranged in the drying -down area longitudinally, air outlet branch pipe and air return branch pipe are communicated to every drying -down chamber respectively to the air outlet main road and air return main road, the end of air outlet branch pipe and air return branch pipe is provided with air door control mechanism, and the support frame for supporting material can be placed in the drying -down chamber. This hot -blast circulation drying -machine for party ginseng astragalus membranaceus beverage processing, the work of circulating fan in drying -machine is completely concentrated in the working unit with material, thoroughly avoids the invalid energy consumption of traditional equipment because of no load operation, solves the problem of energy waste.

Description

Technical Field

[0001] This utility model belongs to the field of drying technology, and in particular relates to a hot air circulating dryer for processing Codonopsis pilosula and Astragalus membranaceus beverages. Background Technology

[0002] Codonopsis pilosula and Astragalus membranaceus are commonly used Chinese medicinal herbs that are both food and medicine, often used in the production of health drinks. In their processing, whether the raw materials are sliced ​​and used directly for infusion or the extracts are concentrated into a paste for use as raw material, drying is a crucial step. The quality of the drying process directly affects the product's color, flavor, and the retention rate of core active ingredients (such as polysaccharides and saponins). Therefore, equipment that can provide a uniform, gentle, and controllable drying environment is needed. Hot air circulating dryers are widely used in this field due to their precise temperature control and ease of operation.

[0003] Common dryers typically employ a structure with multiple drying racks within an insulated enclosure, using a unified air supply and return duct to simultaneously dry all layers. However, in actual production, due to fluctuations in production capacity or batch changes, drying racks are often not fully occupied, leaving some drying layers empty. In such cases, existing dryers continue to heat and supply air to all areas, causing the hot air circulation system to continuously work on the empty areas, resulting in significant waste of heat energy and unused airflow, leading to high energy consumption. Therefore, there is an urgent need for a new type of equipment that can automatically adjust energy consumption based on actual load conditions to achieve precise drying.

[0004] Therefore, we propose a hot air circulating dryer for processing Codonopsis pilosula and Astragalus membranaceus beverages to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to solve the problem of the waste of a large amount of heat energy and unused air caused by the continuous work done on the vacant area under unsaturated working conditions in the existing technology, and to propose a hot air circulating dryer for processing Codonopsis pilosula and Astragalus membranaceus beverages.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A hot air circulating dryer for processing Codonopsis pilosula and Astragalus membranaceus beverages includes a housing, which contains a heating chamber, a circulating fan, a main air outlet duct, and a main air return duct. The main air outlet duct and the main air return duct are connected to the heating chamber and the circulating fan to form a hot air circulating airflow path. The housing has an upper drying area and a lower equipment area, and multiple independent drying chambers are arranged longitudinally within the drying area; The main air outlet duct and the main air return duct are respectively connected to the main air outlet duct and the main air return duct of each drying chamber. The ends of the air outlet pipe and the air return pipe are equipped with damper control mechanisms; The drying chamber can be equipped with a support frame for supporting materials; The support frame works in conjunction with the damper control mechanism. When the support frame is placed in the drying chamber, its own gravity drives the damper control mechanism to open, allowing hot air circulation to flow through the drying chamber. When the support frame is not placed, the damper control mechanism is closed, blocking the airflow.

[0007] Preferably, the damper control mechanism includes an interface sleeve fixedly connected to the ends of the outlet air duct and the return air duct, the interface sleeve having a ventilation opening; a valve core is rotatably and sealed inside the interface sleeve, the valve core having an airflow channel corresponding to and cooperating with the ventilation opening; a trigger is connected to the rotating shaft of the valve core.

[0008] Preferably, the support frame is provided with linkage parts on both sides that cooperate with the trigger; when the support frame is placed in the drying chamber, the linkage parts contact the trigger and drive the valve core to rotate, so that the airflow channel is aligned and connected with the vent.

[0009] Preferably, the support frame includes a plate frame and a breathable mesh plate disposed on the plate frame, the breathable mesh plate being used to support the spreading tray of Codonopsis pilosula and Astragalus membranaceus slices or extracts.

[0010] Preferably, the trigger is a hook, and the linkage is a latch that cooperates with the hook.

[0011] Preferably, a circular cover is installed on the inner wall of the drying chamber, and a torsion spring is provided between the rotating shaft of the valve core and the inner wall of the circular cover, which is used to drive the valve core to rotate to the closed position where the airflow channel and the vent are misaligned after the support frame is removed from the drying chamber.

[0012] Preferably, the heating box and the circulating fan are located within the equipment area, and the main air outlet duct and the main air return duct extend upward from the equipment area and are respectively connected to the respective air outlet branch pipes and air return branch pipes of the drying area.

[0013] In summary, the technical effects and advantages of this utility model are as follows: This hot air circulating dryer for processing Codonopsis pilosula and Astragalus membranaceus beverages utilizes a linked design between the support frame and the damper control mechanism. This divides the overall drying area into multiple independently controllable drying chambers. The hot air circulation channel of a specific drying chamber is only activated when the support frame is placed inside, initiating the drying process. For empty drying chambers without material, the air duct remains closed. This ensures that the work done by the internal circulating fan is entirely concentrated on the work units with material, completely avoiding the ineffective energy consumption caused by idling in traditional equipment. This solves the problem of energy waste and significantly reduces production costs for drying processes that require long-term operation. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the appearance and structure of this utility model; Figure 2 This is a cross-sectional structural diagram of the present invention; Figure 3 for Figure 2 A magnified structural diagram of part A in the middle; Figure 4 This is a schematic diagram of the structure of the damper control mechanism in this utility model; Figure 5 This is a schematic diagram of the valve core structure in this utility model; Figure 6 This is a schematic diagram of the support frame in this utility model.

[0015] In the diagram: 1. Box body; 2. Heating box; 3. Circulating fan; 4. Main air outlet duct; 41. Branch air outlet duct; 5. Main return air duct; 51. Branch return air duct; 6. Drying chamber; 7. Damper control mechanism; 71. Interface sleeve; 72. Ventilation outlet; 73. Valve core; 74. Airflow channel; 75. Trigger element; 76. Torsion spring; 77. Circular cover; 8. Support frame; 81. Linkage part; 82. Plate frame; 83. Breathable mesh plate. Detailed Implementation

[0016] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0017] Reference Figure 1-6 A hot air circulating dryer for processing Codonopsis pilosula and Astragalus membranaceus beverages includes a sealed box 1. The box 1 is structurally optimized with partitioned sections: the upper section is a drying area for placing materials, and the lower section is an equipment area integrating power and heat source equipment. The drying area is equipped with a sealed door. Inside the box 1 are a heating chamber 2, a circulating fan 3, a main exhaust duct 4, and a main return duct 5. The main exhaust duct 4 and the main return duct 5 are connected to the heating chamber 2 and the circulating fan 3 to form a hot air circulating airflow path. The heating chamber 2 and the circulating fan 3 are located in the equipment... Inside the preparation area, heating elements such as electric heating tubes can be arranged inside the heating box 2 to provide the heat source required for drying. The circulating fan 3 provides power for the flow of hot air, driving the air to be heated in the heating box 2 and then entering the main air outlet duct 4, and then being transported upward to the drying area. The air that has completed heat exchange is drawn back through the main return air duct 5. Some of the high humidity exhaust gas is discharged through the exhaust port, while fresh air is replenished and mixed with the return air before entering the heating box 2 again, thus forming a dynamic, closed-loop hot air circulation path.

[0018] Multiple independent drying chambers 6 are arranged longitudinally within the drying area. Each drying chamber 6 is physically separated from each other, forming an independent drying unit. This allows for zoned and layered control. The main exhaust duct 4 and the main return duct 5 extend upward from the equipment area and are respectively connected to the exhaust branch pipes 41 and return branch pipes 51 of the drying area.

[0019] To achieve the energy-saving goal of "working when there is material and standing still when there is no material", the ends of the air outlet pipe 41 and the return air pipe 51 are equipped with damper control mechanisms 7. A support frame 8 for supporting materials can be placed in the drying chamber 6. The support frame 8 and the damper control mechanism 7 work together. When the support frame 8 is placed in the drying chamber 6, its own gravity drives the damper control mechanism 7 to open, allowing hot air circulation to flow through the drying chamber 6 and start drying the Codonopsis pilosula and Astragalus membranaceus slices. When the support frame 8 is not placed, the damper control mechanism 7 is in the closed state, blocking the airflow and avoiding the waste of energy to the empty space.

[0020] Reference Figure 2-5 The damper control mechanism 7 includes an interface sleeve 71 fixedly connected to the end of the outlet air branch pipe 41 and the return air branch pipe 51. The interface sleeve 71 has a vent 72 on the side facing the inside of the drying chamber 6. A columnar valve core 73 is sealed and rotatably installed inside the interface sleeve 71. The valve core 73 is the core component for controlling the opening and closing of the air duct. The inside of the valve core 73 is not solid, but has an airflow channel 74 that runs through it. In the initial state (i.e., without the support bracket 8), the direction of the airflow channel 74 is offset from the vent 72 on the interface sleeve 71, thereby cutting off the air path.

[0021] A trigger 75 is connected to the rotating shaft of the valve core 73. The trigger 75 is a hook. Correspondingly, the two sides of the support frame 8 are provided with linkage parts 81 that cooperate with the trigger 75. The linkage parts 81 are latches that cooperate with the hooks. When the support frame 8 is placed in the drying chamber 6, the linkage parts 81 contact the trigger 75 and drive the valve core 73 to rotate, so that the airflow channel 74 is aligned and connected with the vent 72.

[0022] Reference Figure 2-6 The support frame 8 includes a plate frame 82 and a breathable mesh plate 83 disposed on the plate frame 82. The breathable mesh plate 83 is used to support the spreading tray of Codonopsis pilosula and Astragalus membranaceus slices or extracts.

[0023] When the operator places the support frame 8 into the drying chamber 6, the latches on both sides of the support frame 8 will just engage with the hooks of the damper control mechanism 7. As the support frame 8 continues to be placed in, its weight acts on the hooks through the latches, generating a rotational torque, which drives the valve core 73 to overcome resistance and rotate. When the support frame 8 is fully placed in place, the rotation angle of the valve core 73 also reaches the preset position, so that the airflow channel 74 inside it is fully aligned and connected with the vent 72 on the interface sleeve 71. At this moment, hot air can be sent from the outlet pipe 41 through this channel into the drying chamber 6 to dry the material. After drying, the humid air is brought back to the return air main duct 5 through a similar mechanism at the end of the return air pipe 51, completing a complete cycle in the specific drying chamber 6.

[0024] Reference Figure 2-6 To ensure operational reliability and sealing under no-load conditions, this invention includes a circular cover 77 installed on the inner wall of the drying chamber 6. A torsion spring 76 is installed between the rotating shaft of the valve core 73 and the inner wall of the circular cover 77. When the drying operation is completed and the support frame 8 is removed from the drying chamber 6, its gravitational force on the hook immediately disappears. At this time, the torsion spring 76, which has accumulated elastic potential energy, immediately drives the valve core 73 to rotate in the opposite direction, reliably resetting it to the closed position where the airflow channel 74 and the vent 72 are misaligned again, thereby automatically cutting off the airflow path of the drying chamber 6.

[0025] The working principle is as follows: The circulating fan 3 starts running, and at the same time the heating element in the heating box 2 is activated. The fan drives the air to flow through the heating box 2 and is heated, forming hot air that enters the main air outlet duct 4. At this time, the hot air is transported to the drying area. However, since the damper control mechanism 7 is in the closed state in the initial state, the hot air circulation is restricted to the main air outlet duct 4, and the system is in a low-load standby state, preparing for zoned drying.

[0026] The operator pushes the evenly laid-out material support frame 8 into the designated drying chamber 6. As the support frame 8 is fully pushed into place, the latches on both sides engage and press down on the hooks of the damper control mechanism 7. Through gravity transmission, the valve core 73 is driven to rotate, overcoming the preload of the torsion spring 76. When the support frame 8 is securely placed, the valve core 73 rotates to the working position, aligning its internal airflow channel 74 with the vent 72 on the interface sleeve 71 for complete connection.

[0027] At this point, the hot air circulation path of the specific drying chamber 6 is established. Hot air from the main exhaust duct 4 is blown horizontally into the drying chamber 6 through the opened exhaust branch pipe 41 and its damper control mechanism 7, and evenly penetrates the breathable mesh plate 83 on the support frame 8 and the material layer to achieve efficient drying of the material. The hot air then enters the return air duct 5 and returns to the heating box 2 for reheating. This process is carried out only in the drying chamber 6 where the support frame 8 is placed, effectively avoiding energy waste.

Claims

1. A hot air circulating dryer for processing Codonopsis pilosula and Astragalus membranaceus beverages, comprising a housing (1), wherein a heating chamber (2), a circulating fan (3), a main air outlet duct (4), and a main air return duct (5) are provided inside the housing (1), wherein the main air outlet duct (4) and the main air return duct (5) are connected to the heating chamber (2) and the circulating fan (3) to form a hot air circulating airflow path, characterized in that: The box (1) has an upper drying area and a lower equipment area, and multiple independent drying chambers (6) are arranged longitudinally in the drying area. The main air outlet duct (4) and the main return air duct (5) are respectively connected to the main air outlet duct (41) and the main return air duct (51) of each drying chamber (6); The air outlet pipe (41) and the air return pipe (51) are equipped with damper control mechanisms (7) at their ends. The drying chamber (6) may contain a support frame (8) for supporting materials. The support frame (8) works in conjunction with the damper control mechanism (7). When the support frame (8) is placed in the drying chamber (6), it drives the damper control mechanism (7) to open by its own gravity, so that the hot air circulation flows through the drying chamber (6). When the support frame (8) is not placed, the damper control mechanism (7) is in the closed state, blocking the airflow.

2. The hot air circulating dryer for processing Codonopsis and Astragalus beverages according to claim 1, characterized in that, The damper control mechanism (7) includes an interface sleeve (71) fixedly connected to the end of the outlet pipe (41) and the return pipe (51), and a vent (72) is provided on the interface sleeve (71); a valve core (73) is rotatably sealed inside the interface sleeve (71), and an airflow channel (74) corresponding to the vent (72) is provided inside the valve core (73); a trigger (75) is connected to the rotating shaft of the valve core (73).

3. The hot air circulating dryer for processing Codonopsis and Astragalus beverages according to claim 2, characterized in that, The support frame (8) is provided with linkage parts (81) on both sides that cooperate with the trigger (75); when the support frame (8) is placed in the drying chamber (6), the linkage part (81) contacts the trigger (75) and drives the valve core (73) to rotate, so that the airflow channel (74) is aligned and connected with the vent (72).

4. The hot air circulating dryer for processing Codonopsis and Astragalus beverages according to claim 3, characterized in that, The support frame (8) includes a plate frame (82) and a breathable mesh plate (83) disposed on the plate frame (82). The breathable mesh plate (83) is used to support the spreading tray of Codonopsis pilosula and Astragalus membranaceus slices or extracts.

5. The hot air circulating dryer for processing Codonopsis and Astragalus beverages according to claim 4, characterized in that, The trigger (75) is a hook, and the linkage (81) is a latch that cooperates with the hook.

6. The hot air circulating dryer for processing Codonopsis and Astragalus beverages according to claim 4, characterized in that, A circular cover (77) is installed on the inner wall of the drying chamber (6). A torsion spring (76) is provided between the rotating shaft of the valve core (73) and the inner wall of the circular cover (77) to drive the valve core (73) to rotate to the closed position where the airflow channel (74) and the vent (72) are misaligned after the support frame (8) moves out of the drying chamber (6).

7. The hot air circulating dryer for processing Codonopsis and Astragalus beverages according to claim 1, characterized in that, The heating box (2) and the circulating fan (3) are located in the equipment area. The main air outlet duct (4) and the main air return duct (5) extend upward from the equipment area and are respectively connected to the air outlet branch pipe (41) and the air return branch pipe (51) of the drying area.

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