Air guide structure of belt dryer

Abstract

The utility model relates to medicinal material drying -machine technical field, and disclose a wind -guiding structure of belt dryer, including integrated box and hot -blast circulation group, the integrated box is by at least two rack installation constitution, the front door and the back door are provided with in the front and back two sides of rack, every the rack all is provided with hot -blast circulation group, hot -blast circulation group includes fan assembly, air -guiding channel and protection component, the utility model discloses the setting of protection component can drive the isolation board rotation while opening the front door, make the isolation board block up the fan chamber, and with the protection chamber intercommunication, the airflow that fan blows out can flow out from the air outlet chamber through the protection chamber at this moment, airflow can not flow from the hot -blast chamber to the drying chamber, and the fan will also gradually suck the hot air in the drying chamber quickly, avoid the hot air to cause the discomfort of staff, also avoid the hot air to block the vision of staff, make it unable to accurately observe the drying condition of the medicinal material in the rack.

Description

Technical Field

[0001] This utility model relates to the field of medicinal herb drying technology, specifically to an air guide structure for a belt dryer. Background Technology

[0002] A medicinal herb dryer is a mechanical device specifically designed to remove excess moisture from Chinese medicinal herbs (such as ginseng, astragalus, and scrophularia). It effectively reduces the moisture content of plant, animal, or mineral-based medicinal herbs to the level required for safe storage or further processing through gentle, controlled heating and ventilation. Simultaneously, it maximizes the preservation of the herbs' active ingredients, shape, and color, ensuring their quality and efficacy.

[0003] Most modern dryers use hot air circulation for drying. During the drying process, workers need to monitor the drying progress of the medicinal materials to control the dehydration time in real time. Because hot air drying is used, when workers open the side door, the airflow flows outward, and hot air sprays onto the workers, causing discomfort. For example, the hot air can quickly evaporate moisture from the surface of the eyes, causing dryness and stinging. Inhaling the hot air can also dry the respiratory mucosa, leading to coughing and difficulty breathing. Furthermore, the hot air can easily form fumes, which can obstruct workers' view of the dryer's interior for extended periods when the door is open. Utility Model Content

[0004] To address the aforementioned problems in the existing technology, this utility model provides an air guiding structure for a belt dryer, which has the advantages of preventing hot air from being sprayed onto workers and smoke from obstructing observation.

[0005] To achieve the above objectives, the present invention provides the following technical solution: including an integrated housing and a hot air circulation group, wherein the integrated housing is constructed by mounting at least two frames, and the front and rear sides of the frames are provided with front doors and rear doors, and each frame is provided with a hot air circulation group, wherein the hot air circulation group includes a fan assembly, an air guide channel and a protective assembly;

[0006] The protective assembly includes an isolation plate and a locking ring. The isolation plate is movably connected within the air guide channel. The locking ring is mounted at one corner of the air guide channel via a bearing. An isolation shaft is fixed to one side of the isolation plate. A synchronous motor is rotatably connected to the isolation shaft. The synchronous motor is electrically connected to the front door of the frame.

[0007] Preferably, the frame has a protective chamber and an air outlet chamber. The air outlet chamber opens upward and communicates with the protective chamber. The protective chamber communicates with the air guide channel. The isolation plate is located at the opening of the protective chamber.

[0008] Preferably, the isolation shaft is rotatably mounted inside the frame and extends to the outside, with a transmission gear fixed to its outer portion. The synchronous motor is fixed on the frame and located on one side of the air outlet chamber, with the motor gear of the synchronous motor meshing with the transmission gear.

[0009] Preferably, the other end face of the isolation plate is configured as a pressing surface, and the pressing surface faces away from the protective chamber.

[0010] Preferably, the locking ring is located at the connection between the protective chamber and the air guide channel, and a locking shaft is rotatably installed inside the locking ring. The locking shaft is fixed on the frame, and a wind vane groove is also provided inside the frame. The locking ring is located inside the wind vane groove.

[0011] Preferably, the outer periphery of the locking ring is provided with a plurality of pressing air plates, a portion of which is located in the air guide channel and another portion is located in the air plate groove.

[0012] Preferably, the air duct includes a drying chamber, a hot air chamber, and a fan chamber, wherein a radiator is also provided in the hot air chamber to provide heat, and an arc-shaped section is provided at the bottom of the hot air chamber.

[0013] Preferably, the fan assembly includes a fan and a fan compensator. A fan cylinder is installed at the bottom of the fan and is located in the fan chamber. The fan compensator is also connected to the fan chamber. A fan inlet and a fan outlet are respectively opened on both sides of the fan cylinder.

[0014] Compared with the prior art, this utility model provides an air guiding structure for a belt dryer, which has the following beneficial effects:

[0015] 1. The air guide structure of this belt dryer, through the setting of the protective component, can drive the isolation plate to rotate when the front door is opened, so that the isolation plate blocks the fan chamber and connects with the protective chamber. At this time, the airflow blown by the fan will flow out of the air outlet chamber through the protective chamber, and the airflow will not flow from the hot air chamber to the drying chamber. At the same time, the fan will also gradually and quickly draw the hot air in the drying chamber, avoiding the hot air from causing discomfort to the staff, and also avoiding the hot air from blocking the staff's vision, so that they can accurately observe the drying status of the medicinal materials inside the frame.

[0016] 2. The air guiding structure of this belt dryer, through the setting of the locking ring, can use the airflow in the fan chamber to blow the pressing air plate and drive the locking ring to rotate during the outward flow of the airflow. At this time, the pressing air plate near the isolation plate will abut against the isolation plate, and the isolation plate will be locked by the wind force. The greater the wind force, the better the sealing and protection effect of the isolation plate on the chamber. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0018] Figure 2 This is a schematic diagram of the three-dimensional structure of the frame of this utility model;

[0019] Figure 3 This is a schematic diagram of the internal structure of the frame of this utility model;

[0020] Figure 4 This is a schematic diagram of the airflow structure of the frame of this utility model;

[0021] Figure 5 This is a half-sectional structural diagram of the fan section of this utility model;

[0022] Figure 6 This utility model Figure 5 Enlarged structural diagram at point A;

[0023] Figure 7 This is a schematic diagram of the isolation plate structure of this utility model.

[0024] In the diagram: 10. Frame; 101. Drying chamber; 102. Hot air chamber; 103. Air outlet chamber; 104. Fan chamber; 105. Protective chamber; 106. Front door; 107. Rear door; 11. Fan; 111. Fan casing; 112. Fan inlet; 113. Fan outlet; 12. Fan compensator; 13. Dehumidification pipe; 14. Synchronous motor; 15. Guide plate; 20. Radiator; 30. Isolation plate; 301. Isolation shaft; 302. Transmission gear; 303. Pressing surface; 31. Locking ring; 311. Pressing air plate; 312. Air plate groove; 32. Locking shaft. Detailed Implementation

[0025] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] like Figure 1-7As shown, the device includes an integrated housing and a hot air circulation unit. The integrated housing is constructed by installing at least two frames 10, preferably five or eight. Each frame 10 is interconnected and independent. The outer end faces of the frames 10 located at both ends of the integrated housing are closed. Additional frames 10 can be added to the middle of the integrated housing to extend the overall length of the integrated housing, thereby increasing the overall drying length of the dryer. Each frame 10 is equipped with a hot air circulation unit. The integrated housing is also equipped with multiple sets of mesh belts that run through all frames 10 and are located in the drying chamber 101. The hot air circulation units pass through the mesh belts to dry the products on the mesh belts. Each frame 10 is equipped with a hot air circulation unit. The front and rear sides of the frame 10 are provided with a front door 106 and a rear door 107. The hot air circulation unit includes a fan assembly, an air guide channel, and a protective assembly. Each frame 10 is also equipped with a dehumidification pipe 13, and two or three dehumidification pipes 13 are connected to a dehumidifier as a group.

[0027] like Figure 4 As shown, the air duct includes a drying chamber 101, a hot air chamber 102, and a fan chamber 104. A radiator 20 is installed in the hot air chamber 102 to provide heat. An arc-shaped guide plate 15 is installed at the bottom of the hot air chamber 102. When the airflow reaches the guide plate 15, it will be blown into the drying chamber 101. Then, the hot air rises and is drawn in by the fan 11 from the fan chamber 104, so that the hot air flows upward and is blown out through the fan cylinder 111, thus forming a circulation. During the airflow circulation process, the radiator 20 generates heat, which carries the heat in the airflow, thereby drying the medicine on the mesh belt in the drying chamber 101.

[0028] The fan assembly includes a fan 11 and a fan compensator 12. A fan casing 111 is installed at the bottom of the fan 11. The fan casing 111 is located inside the fan chamber 104. The fan compensator 12 is also connected to the fan chamber 104. The fan compensator 12 can compensate for the airflow in the air guide channel. Due to the change in air temperature, the air expands when heated and contracts when cooled. Therefore, the fan compensator 12 compensates for the air guide channel. When the airflow expands, it is discharged outward. When the airflow contracts, it is drawn inward, which can balance the air pressure in the air guide channel. The fan casing 111 has a fan inlet 112 and a fan outlet 113 on both sides. The airflow flows from the fan inlet 112 to the fan outlet 113 and blows outward.

[0029] The protective assembly includes an isolation plate 30 and a locking ring 31. The isolation plate 30 is movably connected within the air guide channel. A protective chamber 105 and an air outlet chamber 103 are provided within the frame 10. The air outlet chamber 103 opens upwards and communicates with the protective chamber 105. The protective chamber 105 communicates with the air guide channel. The isolation plate 30 is located at the opening of the protective chamber 105. The length of the isolation plate 30 is greater than the length of the outlet of the fan chamber 104, ensuring that the isolation plate 30 completely seals the outlet of the fan chamber 104. The locking ring 31 is mounted in one corner of the air guide channel via a bearing. An isolation shaft 301 is fixed to one side of the isolation plate 30. A synchronous motor 14 is rotatably connected to the isolation shaft 301. The synchronous motor 14 is electrically connected to the front door 106 of the frame 10, i.e., via a wire for electrical signal connection. The position of the isolation plate 30 is controlled by opening the front door 106. The isolation plate 30 isolates the passage between the fan chamber 104 and the protective chamber 105, thus... The air duct can circulate normally. When opening the front door 106 to check the drying status of the medicinal materials inside the equipment, it is necessary to open the front door 106 for inspection. At this time, due to the function of the air duct and the fact that the airflow is not restricted by the front door 106, the airflow will continuously spray outward. This hot air will cause discomfort to the staff, resulting in problems such as dry eyes, stinging, coughing, and difficulty breathing. Through the setting of the protective component, the isolation plate 30 can be rotated at the same time as the front door 106 is opened, so that the isolation plate 30 blocks the fan chamber 104 and connects with the protective chamber 105. At this time, the airflow blown by the fan 11 will flow out from the air outlet chamber 103 through the protective chamber 105. The airflow will not flow from the hot air chamber 102 to the drying chamber 101. At the same time, the fan 11 will also gradually and quickly draw in the hot air in the drying chamber 101, avoiding the hot air from causing discomfort to the staff, and also preventing the hot air from blocking the staff's vision, so that they can accurately observe the drying status of the medicinal materials inside the frame 10.

[0030] The isolation shaft 301 is rotatably mounted inside the frame 10 and extends to the outside. A transmission gear 302 is fixed to its external portion. A synchronous motor 14 is fixed on the frame 10, located on one side of the air outlet chamber 103. The synchronous motor 14 is a complete motor, including a motor shaft and motor gears. The motor gear of the synchronous motor 14 meshes with the transmission gear 302. The motor is electrically connected to the front door 106 and the rear door 107. That is, when the front door 106 and the rear door 107 are opened, the synchronous motor 14 is activated, and the isolation shaft... The rotating shaft 301 drives the isolation plate 30 to rotate. When the front door 106 and the rear door 107 are closed, the synchronous motor 14 will drive the isolation plate 30 to rotate in the opposite direction until it is reset. The other end face of the isolation plate 30 is set as the pressing surface 303. The pressing surface 303 faces away from the protective chamber 105. Gears and belts can also be set on the isolation rotating shaft 301. The auxiliary gears and belts inside the frame 10 are connected to the front door 106 for power connection. Thus, the isolation plate 30 can be started to rotate when the front door 106 is opened.

[0031] The locking ring 31 is located at the connection between the protective chamber 105 and the air guide channel. A locking shaft 32 is rotatably installed inside the locking ring 31 and is fixed to the frame 10. The frame 10 also has an air vane groove 312, and the locking ring 31 is located in the air vane groove 312. Several pressing air vanes 311 are provided on the outer periphery of the locking ring 31. Part of the pressing air vanes 311 is located in the air guide channel, and the other part is located in the air vane groove 312. The pressing surface 303 and the pressing air vane 311 are connected. 1. When the isolation plate 30 closes the protective chamber 105, the isolation plate 30 rotates and enters between two adjacent pressing air plates 311. Then, as the airflow in the fan chamber 104 flows outward, it will drive the locking ring 31 to rotate through the pressing air plates 311. At this time, the pressing air plates 311 close to the isolation plate 30 will abut against the isolation plate 30, and the wind force will be used to lock the isolation plate 30. The greater the wind force, the better the effect of the isolation plate 30 in sealing the protective chamber 105.

[0032] Working principle: During use, the fan 11 in the hot air circulation group generates airflow, which is drawn in from the fan inlet 112 and ejected from the fan outlet 113. The airflow then flows through the fan chamber 104 to the hot air chamber 102. At this time, there is heat in the radiator 20. The airflow carries away the heat from the radiator 20. Then, the airflow carrying the heat enters the drying chamber 101 through the guide plate 15 to dry the medicinal materials in the drying chamber 101. The hot air will drift upward and then be drawn back into the fan chamber 104 through the fan inlet 112, forming a complete cycle. The heat in the radiator 20 is continuously carried away and dried with the airflow.

[0033] During the drying process, when staff need to check the drying status of the medicinal materials, they open the front door 106. At this time, the front door 106 sends an electrical signal to start the synchronous motor 14 to rotate. Through the transmission gear 302, the isolation shaft 301 is driven to rotate the isolation plate 30 until it blocks the outlet of the fan chamber 104. At this time, the airflow can only flow to the outside from the protective chamber 105 and the air outlet chamber 103, so the airflow will not spray out from the drying chamber 101. Moreover, the fan 11 can also quickly extract the hot air from the drying chamber 101 to prevent the hot air from obstructing the staff's view.

[0034] In summary, the air guiding structure of this belt dryer, through the installation of protective components, allows the isolation plate 30 to rotate simultaneously with the opening of the front door 106. This causes the isolation plate 30 to block the fan chamber 104 and connect with the protective chamber 105. At this time, the airflow blown by the fan 11 will flow out of the outlet chamber 103 through the protective chamber 105, preventing the airflow from flowing from the hot air chamber 102 to the drying chamber 101. Simultaneously, the fan 11 will gradually and rapidly absorb the hot air from the drying chamber 101, preventing the hot air from causing harm to the workers. This avoids discomfort and also prevents heat from obstructing the staff's view, thus preventing them from accurately observing the drying status of the medicinal materials inside the rack 10. With the setting of the locking ring 31, as the airflow from the fan chamber 104 flows outward, it blows the pressing air plate 311, causing the locking ring 31 to rotate. At this time, the pressing air plate 311 near the isolation plate 30 will abut against the isolation plate 30, using the wind force to achieve the effect of locking the isolation plate 30. The greater the wind force, the better the effect of the isolation plate 30 in sealing and protecting the chamber 105.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An air guiding structure for a belt dryer, comprising an integrated housing and a hot air circulation unit, characterized in that: The integrated housing is constructed by installing at least two racks (10). The racks (10) are provided with a front door (106) and a rear door (107) on their front and rear sides. Each rack (10) is provided with a hot air circulation group, which includes a fan assembly, an air guide channel and a protective assembly. The protective assembly includes an isolation plate (30) and a locking ring (31). The isolation plate (30) is movably connected in the air guide channel. The locking ring (31) is installed in one corner of the air guide channel by a bearing. An isolation shaft (301) is fixed on one side of the isolation plate (30). A synchronous motor (14) is rotatably connected to the isolation shaft (301). The synchronous motor (14) is electrically connected to the front door (106) of the frame (10).

2. The air guiding structure of a belt dryer according to claim 1, characterized in that: The frame (10) has a protective chamber (105) and an air outlet chamber (103). The air outlet chamber (103) opens upward and is connected to the protective chamber (105). The protective chamber (105) is connected to the air guide channel. The isolation plate (30) is located at the opening of the protective chamber (105).

3. The air guiding structure of a belt dryer according to claim 2, characterized in that: The isolation shaft (301) is rotatably installed inside the frame (10) and extends to the outside. A transmission gear (302) is fixed on its outer part. The synchronous motor (14) is fixed on the frame (10) and located on one side of the air outlet chamber (103). The motor gear of the synchronous motor (14) meshes with the transmission gear (302).

4. The air guiding structure of a belt dryer according to claim 2, characterized in that: The other end face of the isolation plate (30) is configured as a pressing surface (303), which faces away from the protective chamber (105).

5. The air guiding structure of a belt dryer according to claim 2, characterized in that: The locking ring (31) is located at the connection between the protective chamber (105) and the air guide channel. A locking shaft (32) is rotatably installed inside the locking ring (31). The locking shaft (32) is fixed on the frame (10). A wind vane groove (312) is also provided inside the frame (10). The locking ring (31) is located inside the wind vane groove (312).

6. The air guiding structure of a belt dryer according to claim 5, characterized in that: The outer periphery of the locking ring (31) is provided with a plurality of pressing air plates (311), one part of which is located in the air guide channel and the other part is located in the air plate groove (312).

7. The air guiding structure of a belt dryer according to claim 1, characterized in that: The air duct includes a drying chamber (101), a hot air chamber (102) and a fan chamber (104), wherein a radiator (20) is provided in the hot air chamber (102) to provide heat, and an arc-shaped guide plate (15) is provided at the bottom of the hot air chamber (102).

8. The air guiding structure of a belt dryer according to claim 7, characterized in that: The fan assembly includes a fan (11) and a fan compensator (12). A fan casing (111) is installed at the bottom of the fan (11). The fan casing (111) is located inside the fan chamber (104). The fan compensator (12) is also connected to the fan chamber (104). A fan inlet (112) and a fan outlet (113) are respectively opened on both sides of the fan casing (111).

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