Cavity communicating type low-temperature vacuum drying oven

Abstract

The cavity communicating type low-temperature vacuum drying oven comprises a drying oven body, a rotating rod is rotationally installed in the drying oven body, fixing plates are fixedly installed at the positions, close to the top end and the bottom end, of the outer surface of the rotating rod, and a plurality of eccentric plates are arranged at the position, close to the position between the two fixing plates, of the outer surface of the rotating rod in a staggered mode; and the eccentric plates are fixedly connected with the rotating rod, a material containing groove is formed in the surface of one side of the top end of each eccentric plate, and the fixing plate on the lowest portion is attached to the surface of the bottom end of the interior of the drying box. The servo motor drives the rotating rod to rotate, at the moment, the rotating rod drives the fixing plate and the eccentric plate to rotate synchronously, at the moment, the fixing plate and the eccentric plate rotate eccentrically, and therefore materials in the material containing groove rotate along with the eccentric plate and shake in the material containing groove. And meanwhile, the heating assembly in the drying box can heat and dry the position of the material containing groove, and the material drying efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of vacuum drying oven technology, specifically a cavity-connected low-temperature vacuum drying oven. Background Technology

[0002] A vacuum low-temperature drying oven places the material to be dried in a vacuum environment for heating and drying. Due to the presence of a vacuum environment, the boiling point of water is lowered, allowing the moisture in the material to boil and evaporate at a lower temperature. This greatly shortens the drying time and improves drying efficiency. Because of its high efficiency and low pollution, vacuum low-temperature drying ovens are widely used in the fields of medicine, food, light industry, and chemical industry.

[0003] Existing chamber-connected low-temperature vacuum drying ovens often suffer from low drying efficiency due to material stacking, where the material below is blocked by the material above. Furthermore, the water produced after drying tends to accumulate in the drying oven, further affecting the drying efficiency. Therefore, these methods do not meet the current requirements. To address this, we propose a chamber-connected low-temperature vacuum drying oven. Utility Model Content

[0004] The purpose of this utility model is to provide a cavity-connected low-temperature vacuum drying oven to solve the problems mentioned in the background art, such as the low-temperature vacuum drying oven often having the material at the bottom blocked by the material at the top due to material stacking, resulting in low drying efficiency, and the water generated after drying easily accumulating in the drying oven, affecting drying efficiency.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a cavity-connected low-temperature vacuum drying oven, comprising a drying oven, wherein a rotating rod is rotatably mounted inside the drying oven, and fixed plates are fixedly mounted on the outer surface of the rotating rod near the top and bottom ends. Multiple eccentric plates are staggered on the outer surface of the rotating rod near the position between the two fixed plates, and each eccentric plate is fixedly connected to the rotating rod. A material placement groove is provided on one side surface of the top end of each eccentric plate. The lowest fixed plate is in contact with the bottom surface of the drying oven interior. Two L-shaped mounting plates are bolted to the outer surface of the lowest fixed plate. Multiple connecting rods are fixedly mounted on the outer surface of the L-shaped mounting plates, and semi-circular scrapers are fixedly mounted on the outer ends of each connecting rod, with the semi-circular scrapers in contact with the bottom surface of the drying oven interior.

[0006] Preferably, heating components are bolted to the other side of the top of the eccentric plate, and a geared motor is bolted to the bottom of the eccentric plate near the heating components. A spiral heating component is provided inside the drying oven near the inner wall surface. A geared motor is bolted to the bottom of the uppermost fixed plate. A power cord is provided on the outside of the geared motor. An electric slip ring is provided on the outer surface of the rotating shaft. The power cord is connected to the electric slip ring.

[0007] Preferably, the output end of the geared motor is connected to a rotating shaft via a coupling, and four stirring rods are fixedly installed at the bottom end of each rotating shaft, with each stirring rod movably inserted into the material trough.

[0008] Preferably, condenser tubes are provided at the four corners inside the drying chamber, and two water outlet pipes are provided on the bottom surface inside the drying chamber, with a vacuum pump connected to the outer end of each water outlet pipe.

[0009] Preferably, support legs are fixedly installed at the four corners of the bottom of the drying oven, observation windows are provided on the outer surface of the drying oven, and a servo motor is fixedly installed at the top of the drying oven. The output end of the servo motor is connected to the top of the rotating rod through a coupling.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] 1. This utility model, through the cooperation of a fixed plate and an eccentric plate, allows the material to be dried to be placed into the material trough during use. Then, a servo motor drives a rotating rod to rotate, which in turn drives the fixed plate and the eccentric plate to rotate synchronously. The fixed plate and the eccentric plate rotate eccentrically, causing the material inside the material trough to follow the rotation of the eccentric plate and move synchronously with the movement of the material trough. At the same time, the heating components inside the drying chamber heat and dry the material trough. Simultaneously, a geared motor drives a rotating shaft to rotate, which in turn drives a stirring rod to rotate inside the material trough, thereby agitating the material and improving the drying efficiency.

[0012] 2. This utility model, through the cooperation of the condenser tube and the semi-circular scraper, allows the device to liquefy the water vapor produced during the drying process through the condenser tube during use, so that the water falls along the condenser tube into the interior of the drying chamber, and is then discharged from the drying chamber through the water outlet pipe. At this time, the semi-circular scraper will rotate with the rotating rod to scrape the bottom of the drying chamber, thereby scraping away the water remaining at the bottom of the drying chamber and accelerating its discharge through the water outlet pipe, thus preventing water from remaining at the bottom of the drying chamber and affecting the drying efficiency. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a cross-sectional front view of the entire utility model;

[0015] Figure 3 This is a top cross-sectional view of the entire utility model;

[0016] Figure 4 This utility model Figure 2 A partial structural diagram of part A in the middle.

[0017] In the diagram: 1. Drying oven; 2. Observation window; 3. Support leg; 4. Condenser tube; 5. Servo motor; 6. Water outlet pipe; 7. Rotating rod; 8. Fixing plate; 9. Eccentric plate; 10. Heating assembly; 11. Gear motor; 12. Rotating shaft; 13. Stirring rod; 14. Material trough; 15. L-shaped mounting plate; 16. Connecting rod; 17. Semi-circular scraper; 18. Electric slip ring; 19. Power cord. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0019] Please see Figures 1 to 4 This utility model provides an embodiment of a cavity-connected low-temperature vacuum drying oven, comprising a drying oven 1. A rotating rod 7 is rotatably installed inside the drying oven 1. Fixing plates 8 are fixedly installed on the outer surface of the rotating rod 7 near the top and bottom ends. Multiple eccentric plates 9 are staggered on the outer surface of the rotating rod 7 near the position between the two fixing plates 8. The eccentric plates 9 are all fixedly connected to the rotating rod 7. A material placement groove 14 is provided on one side surface of the top end of each eccentric plate 9. The bottom fixing plate 8 is in contact with the bottom surface inside the drying oven 1. Two L-shaped mounting plates 15 are bolted to the outer surface of the bottom fixing plate 8. Multiple connecting rods 16 are fixedly installed on the outer surface of the L-shaped mounting plates 15. Semi-circular scrapers 17 are fixedly installed on the outer ends of the connecting rods 16. The semi-circular scrapers 17 are in contact with the bottom surface inside the drying oven 1.

[0020] Heating components 10 are bolted to the other side of the top of the eccentric plate 9. Gear motors 11 are bolted to the bottom of the eccentric plate 9 near the heating components 10. Spiral heating components 10 are provided inside the drying oven 1 near the inner wall surface. Gear motors 11 are bolted to the bottom of the top fixed plate 8. Power cords 19 are provided on the outside of the gear motors 11. Electric slip rings 18 are provided on the outer surface of the rotating shaft 7. Power cords 19 are connected to electric slip rings 18.

[0021] With the cooperation of the fixed plate 8 and the eccentric plate 9, when the device is in use, the material to be dried can first be placed inside the material trough 14. Then, the rotating rod 7 can be driven to rotate by the servo motor 5. At this time, the rotating rod 7 will drive the fixed plate 8 and the eccentric plate 9 to rotate synchronously. The fixed plate 8 and the eccentric plate 9 will rotate eccentrically, so that the material inside the material trough 14 will follow the rotation of the eccentric plate 9 and move synchronously with the movement of the material trough 14. At the same time, the heating component 10 inside the drying chamber 1 will heat and dry the position of the material trough 14. Meanwhile, the rotating shaft 12 is driven to rotate by the reduction motor 11, so that the rotating shaft 12 drives the stirring rod 13 to rotate inside the material trough 14, thereby agitating the material and improving the drying efficiency of the material.

[0022] The output end of the geared motor 11 is connected to the rotating shaft 12 via a coupling. Four stirring rods 13 are fixedly installed at the bottom of the rotating shaft 12, and the stirring rods 13 are movably inserted into the material trough 14.

[0023] Condensing pipes 4 are provided at the four corners inside the drying oven 1. Two water outlet pipes 6 are provided on the bottom surface inside the drying oven 1. The outer ends of the water outlet pipes 6 are connected to a vacuum pump.

[0024] By cooperating with the condenser tube 4 and the semi-circular scraper 17, the device can liquefy the water vapor produced during the drying process through the condenser tube 4 during use, so that the water falls along the condenser tube 4 into the interior of the drying chamber 1, and then is discharged from the drying chamber 1 through the water outlet pipe 6. At this time, the semi-circular scraper 17 will rotate with the rotating rod 7 to scrape the bottom of the interior of the drying chamber 1, thereby scraping away the water remaining at the bottom of the interior of the drying chamber 1 and accelerating its discharge through the water outlet pipe 6, thus preventing water from remaining at the bottom of the interior of the drying chamber 1 and affecting the drying efficiency.

[0025] Support legs 3 are fixedly installed at the four corners of the bottom of the drying oven 1. Observation windows 2 are provided on the outer surface of the drying oven 1. A servo motor 5 is fixedly installed at the top of the drying oven 1. The output end of the servo motor 5 is connected to the top of the rotating rod 7 through a coupling.

[0026] In use, the material to be dried in this interconnected low-temperature vacuum drying oven can be placed into the material storage tank 14. Then, the rotating rod 7 is driven to rotate by the servo motor 5. At this time, the rotating rod 7 will drive the fixed plate 8 and the eccentric plate 9 to rotate synchronously. The fixed plate 8 and the eccentric plate 9 will rotate eccentrically, causing the material inside the material storage tank 14 to rotate with the eccentric plate 9, thus moving synchronously with the material storage tank 14. Simultaneously, the heating element 10 inside the drying oven 1 will heat and dry the material storage tank 14. Meanwhile, the rotating shaft 12 is driven to rotate by the reduction motor 11. The rotating shaft 12 drives the stirring rod 13 to rotate inside the material trough 14, thereby agitating the material and improving the drying efficiency. The water vapor produced during the drying process can be liquefied through the condenser pipe 4, so that the water falls along the condenser pipe 4 into the interior of the drying chamber 1, and then is discharged from the drying chamber 1 through the water outlet pipe 6. At this time, the semi-circular scraper 17 will rotate with the rotating rod 7 to scrape the bottom of the interior of the drying chamber 1, thereby scraping away the water remaining at the bottom of the interior of the drying chamber 1 and accelerating its discharge through the water outlet pipe 6, thus preventing water from remaining at the bottom of the interior of the drying chamber 1 and affecting the drying efficiency.

[0027] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A cavity-communicating low-temperature vacuum drying oven comprising a drying oven (1), characterized in that: The inside of the drying box (1) is rotatably provided with a rotating rod (7), the outer surface of the rotating rod (7) is fixedly provided with a fixed plate (8) near the top end and the bottom end, a plurality of eccentric plates (9) are staggered arranged on the outer surface of the rotating rod (7) near the position between the two fixed plates (8), the eccentric plates (9) are fixedly connected with the rotating rod (7), one side surface of the top end of the eccentric plate (9) is provided with a material placing groove (14), the bottom surface of the inside of the drying box (1) is attached to the bottom surface of the lowermost fixed plate (8), the outer surface of the lowermost fixed plate (8) is connected with two L-shaped mounting plates (15) through bolts, a plurality of connecting rods (16) are fixedly installed on the outer surface of the L-shaped mounting plate (15), the outer end of the connecting rod (16) is fixedly provided with a semicircular scraping rod (17), and the semicircular scraping rod (17) is attached to the bottom surface of the inside of the drying box (1).

2. The cavity-communicating low-temperature vacuum drying oven according to claim 1, characterized in that: The other side of the top end of the eccentric plate (9) is provided with a heating assembly (10) through bolts, one side of the bottom end of the eccentric plate (9) near the heating assembly (10) is provided with a speed reducer motor (11) through bolts, the inside of the drying box (1) is provided with a heating assembly (10) in a spiral shape near the inner wall surface, the bottom end of the uppermost fixed plate (8) is provided with a speed reducer motor (11) through bolts, the outer side of the speed reducer motor (11) is provided with a power line (19), and the outer surface of the rotating rod (7) is provided with an electric slip ring (18). The power line (19) is connected with the electric slip ring (18).

3. The cavity-communicating low-temperature vacuum drying oven according to claim 2, characterized in that: The output end of the speed reducer motor (11) is connected with a rotating shaft (12) through a shaft coupling, the bottom end of the rotating shaft (12) is fixedly provided with four stirring rods (13), and the stirring rod (13) is movably clamped into the inside of the material placing groove (14).

4. The cavity-communicating low-temperature vacuum drying oven according to claim 1, characterized in that: The inside of the drying box (1) is provided with a condenser pipe (4) at four corners, the bottom surface of the inside of the drying box (1) is provided with two water outlet pipes (6), and the outer end of the water outlet pipe (6) is connected with a vacuum pump.

5. The cavity-communicating low-temperature vacuum drying oven according to claim 1, characterized in that: The bottom end of the drying box (1) is fixedly provided with a supporting leg (3) at four corners, the outer surface of the drying box (1) is provided with an observation window (2), the top end of the drying box (1) is fixedly provided with a servo motor (5), and the output end of the servo motor (5) is connected with the top end of the rotating rod (7) through a shaft coupling.

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