Calcium chloride drying agent back-drying device

By employing a rotating component and vacuum heating structure in the calcium chloride desiccant re-drying device, the sealing problem of the rotary joint was solved, achieving efficient, stable drying effect and safety.

CN224080594UActive Publication Date: 2026-04-03YI XUAN PACKING PROD (LIANYUNGANG) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-10
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

The rotary joints of existing double cone rotary vacuum dryers are prone to wear and leakage, posing a safety hazard. Furthermore, the traditional heating and circulation structure is unstable.

Method used

The system employs a rotating assembly and a vacuum heating structure. The drying tank is periodically rotated through the cooperation of a bearing frame, a sealing cover, a pulley, and a worm gear. The coaxial connection design of the inlet and outlet pipes avoids wear on the rotating connectors, and a vacuum environment is maintained for heating by a vacuum pump.

Benefits of technology

It improves the drying effect, avoids the problem of wear and leakage of the rotating connector, realizes a stable and efficient heating cycle, and ensures the safety and stability of the equipment.

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Abstract

The utility model discloses a calcium chloride desiccant back-drying device, which relates to the technical field of desiccant back-drying and comprises an equipment shell, the bottom surface of the equipment shell is fixedly mounted on a mounting plate, a rotating component is arranged in the equipment shell, a drying tank structure is arranged on the rotating component, and vacuum heating structures are arranged in the equipment shell and the drying tank structure. The vacuum heating structure communicates with external equipment through a connector which is fixedly installed at the upper end of the outer side face of the equipment shell. Through cooperation of the rotating assembly and the drying tank body structure, internal materials can be turned over periodically, so that the materials are prevented from caking, the drying effect is improved, and the capacity of drying a drying agent in a high-quality mode is achieved; and through cooperation of the rotating assembly and the vacuum heating assembly, it is conveniently avoided that a rotating connector which is prone to abrasion is selected for cooperation rotation, stability is improved, the capacity of stably and circularly heating liquid is achieved, and finally the problem that liquid leakage is caused due to the fact that the rotating connector which is prone to abrasion is used in an existing equipment heating circulation structure is solved.
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Description

Technical Field

[0001] This utility model relates to the field of desiccant re-drying technology, and in particular to a calcium chloride desiccant re-drying device. Background Technology

[0002] The re-drying equipment for calcium chloride desiccant is mainly used to regenerate calcium chloride desiccant that has absorbed moisture, restoring its moisture absorption capacity. Various types of equipment exist, with the double-cone rotary vacuum dryer being the most widely used due to its simple structure, convenient operation, and good drying quality. Existing double-cone rotary vacuum dryers primarily dehydrate materials quickly by rotating and heating them in a vacuum environment, allowing for recycling. The heating function is mainly achieved through the circulation of steam or hot water. Because the rotary function requires a rotating device, the coolant recovery pipe typically uses a rotary joint to accommodate the pipe's rotation. However, the sealing of the rotary joint deteriorates due to wear, leading to leakage after a period of use, which is extremely dangerous. Therefore, this invention addresses these problems by improving existing equipment. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a calcium chloride desiccant re-drying device.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a calcium chloride desiccant re-drying device, comprising a housing, the bottom surface of which is fixedly mounted on an mounting plate, a rotating assembly inside the housing, a drying tank structure on the rotating assembly, a vacuum heating structure inside the housing and the drying tank structure, the vacuum heating structure being connected to an external device via an interface, the interface being fixedly mounted on the upper part of the outer side of the housing.

[0005] Preferably, the rotating assembly includes a bearing bracket, which is horizontally mounted and fixed inside the upper part of the equipment housing. A sealing cover is rotatably connected to the opposite surface of the bearing bracket, and the sealing cover is hollow inside and equipped with a vacuum heating structure.

[0006] Preferably, a motor is located below one of the bearing brackets. The motor is installed and fixed inside the equipment housing. A drive pulley is rotatably connected to one side of the motor. A driven pulley is located directly above the drive pulley. A belt is fitted on the outer surfaces of the drive pulley and the driven pulley. The driven pulley is coaxially fixed to a worm gear. The worm gear is horizontally rotatably connected to the outer side of the bearing bracket. A worm tooth is meshing above the worm gear. The worm tooth is coaxially fixed to the outer side of the sealing cover.

[0007] Preferably, the drying tank structure includes a drying tank, and a drying inner liner is sealed and fixed inside the drying tank. The upper and lower ends of the drying inner liner are both open. A sealing ring is inlaid at the upper and lower ports of the drying inner liner. A sealing cover is abutted against the inner side of the sealing ring. One side of the sealing cover is hinged to the drying tank, and the other side of the sealing cover is fixed to the drying tank by a spring buckle.

[0008] Preferably, the vacuum heating structure includes a heating structure and a vacuum structure. The heating structure includes a return pipe, one end of which is connected downward to a water supply device, and the other end of which passes through the drying tank and connects to the cavity between the drying tank and the drying inner liner. An inlet pipe is coaxially provided inside the return pipe, one end of which also connects to the cavity between the drying tank and the drying inner liner, and the other end of which passes through the side wall of the return pipe and connects to the water supply device through an interface.

[0009] Preferably, the vacuum structure includes a vacuum pressure gauge, one end of which is connected to a vacuum pump via an interface, and the other end of which is connected to a suction pipe. The other end of the suction pipe passes through the drying tank and the drying inner liner and is fitted with a filter screen.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model, through the cooperation of the rotating component and the drying tank structure, facilitates the periodic turning of the internal material, thereby avoiding material agglomeration, improving the drying effect, and realizing the ability to re-dry the desiccant with high quality; furthermore, through the cooperation of the rotating component and the vacuum heating component, it avoids the need to select easily worn rotary connectors to match the rotation, improves stability, realizes the ability to stably circulate the heating liquid, and ultimately solves the problem of leakage caused by the use of easily worn rotary connectors in the heating circulation structure of existing equipment. Attached Figure Description

[0011] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0012] Figure 1 This is a three-dimensional schematic diagram of the overall appearance of the device proposed in this utility model;

[0013] Figure 2 This is a cross-sectional schematic diagram of the drying tank structure proposed in this utility model;

[0014] Figure 3 This is a three-dimensional schematic diagram of the rotating component structure proposed in this utility model;

[0015] Figure 4 This is a three-dimensional schematic diagram of the vacuum heating structure proposed in this utility model;

[0016] Figure 5 This is a cross-sectional schematic diagram of the vacuum heating structure proposed in this utility model.

[0017] The numbers in the diagram are as follows: 1. Equipment housing; 2. Bearing bracket; 3. Sealing cover; 4. Drying tank; 5. Drying inner liner; 6. Sealing ring; 7. Sealing cover; 8. Motor; 9. Drive pulley; 10. Driven pulley; 11. Worm gear; 12. Worm tooth; 13. Return pipe; 14. Inlet pipe; 15. Interface; 16. Vacuum pressure gauge; 17. Evacuation pipe; 18. Filter screen. 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] Example: See Figure 1-5This utility model discloses a calcium chloride desiccant re-drying device, comprising a housing 1, the bottom of which is fixedly mounted on an mounting plate. A rotating assembly is located inside the housing 1, and a drying tank structure is mounted on the rotating assembly. A vacuum heating structure is located inside both the housing 1 and the drying tank structure. The vacuum heating structure is connected to external equipment via an interface 15, which is fixedly mounted on the upper outer surface of the housing 1. The modular design facilitates device maintenance and upgrades, improving practicality. The rotating assembly includes a bearing bracket 2, which is horizontally mounted and fixed to the upper part of the housing 1. A sealing cover 3 is rotatably connected to the opposite surface of the bearing bracket 2. The sealing cover 3 is hollow and contains a vacuum heating structure. A motor 8 is located below one of the bearing brackets 2, and is fixedly mounted inside the housing 1. A drive pulley 9 is rotatably connected to one side of the motor 8. A driven pulley 10 is located directly above the drive pulley 9. Belts are fitted onto the outer surfaces of the drive pulley 9 and the driven pulley 10. The driven pulley 10 is coaxially fixed to a worm gear 11. The worm gear 11 is horizontally rotatably connected to the outer side of the bearing bracket 2. A worm tooth 12 is meshing above the worm gear 11 and is coaxially fixed to the outer side of the sealing cover 3. The motor 8 and the worm gear 11 drive the drying tank to rotate, preventing material caking and improving practicality. The drying tank structure includes a drying tank 4, with a drying inner liner 5 sealed and fixed inside. The upper and lower ends of the drying inner liner 5 are both open, and sealing rings 6 are inlaid at both the upper and lower ends of the drying inner liner 5. The inner side of the sealing ring 6 abuts against a sealing... The cover 7 is hinged to the drying tank 4 on one side, and the other side of the cover 7 is fixed to the drying tank 4 by a spring buckle. The vacuum structure includes a vacuum pressure gauge 16. One end of the vacuum pressure gauge 16 is connected to the vacuum pump through the interface 15, and the other end of the vacuum pressure gauge 16 is connected to the suction pipe 17. The other end of the suction pipe 17 passes through the drying tank 4 and the drying inner liner 5 and is fitted with a filter screen 18. Through the cooperation of the filter screen 18 and the suction pipe 17, it is easy for materials to enter the suction pipe 17 and thus block the vacuum pump, improving practicality.

[0020] In this utility model, to solve the problem of leakage caused by easily worn rotary connectors in the heating circulation structure of existing equipment, the following technical solution is adopted: The vacuum heating structure includes a heating structure and a vacuum structure. The heating structure includes a return pipe 13. One end of the return pipe 13 is connected downward to the water supply equipment, and the other end of the return pipe 13 passes through the drying tank 4 and connects to the cavity between the drying tank 4 and the drying inner liner 5. The return pipe 13 is coaxially provided with an inlet pipe 14 inside. One end of the inlet pipe 14 is also connected to the cavity between the drying tank 4 and the drying inner liner 5, and the other end of the inlet pipe 14 passes through the side wall of the return pipe 13 and connects to the water supply equipment through the interface 15. Through the coaxial sleeve structure of the inlet pipe 14 and the return pipe 13, the problem of the return pipe 13 rotating due to the rotation of the drying tank structure is fundamentally avoided, and the use of easily worn rotary connectors is avoided.

[0021] Working principle: When using this utility model, first, power is supplied to all electrical equipment. Then, the spring buckle and sealing cover 7 are opened, allowing the sealing ring 6 to disengage from the drying inner liner 5. Next, damp material is poured in. Then, the sealing cover 7 is closed, allowing the sealing ring 6 to abut against the drying inner liner 5, completing the complete seal of the drying inner liner 5. Then, the motor 8 is started, causing the driving pulley 9 to drive the driven pulley 10 via a belt, thereby rotating the worm gear 11, which in turn drives the worm tooth 12 to rotate, causing the sealing cover 3 to rotate on the bearing bracket 2. This, in turn, causes the drying tank and the material to rotate as a whole, preventing clumping. Hot water is introduced into the jacket inside the drying tank through the inlet pipe 14. When the tank is full, the hot water flows back into the water supply equipment through the return pipe 13, completing the water circulation. Since the inlet pipe 14 and the return pipe 13 are coaxially connected, they are not affected by the rotation of the drying tank. At the same time, the vacuum pump continuously extracts air from the drying tank, reducing the air pressure and boiling point inside the tank, thus causing the water to evaporate quickly and be extracted out of the tank through the suction pipe 17. This process, combined with the rotation, completes the drying process. Finally, the power is turned off, the sealing cover 7 is opened, and the desiccant is removed to complete the re-drying process.

[0022] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A calcium chloride desiccant reactivation device comprising a device housing (1), characterized in that: The device shell (1) bottom surface is fixed on the mounting plate, the device shell (1) is internally provided with a rotating assembly, the rotating assembly is provided with a drying tank structure, the device shell (1) and the drying tank structure are internally provided with a vacuum heating structure, the vacuum heating structure is communicated with external equipment through an interface (15), and the interface (15) is fixed on the outer side of the device shell (1).

2. A calcium chloride desiccant rebaking apparatus according to claim 1, characterized in that: The rotating assembly includes a bearing frame (2), the bearing frame (2) is horizontally fixed on the inner upper end of the device shell (1), and the sealing cover (3) is rotatably connected to the opposite surface of the bearing frame (2); the sealing cover (3) is hollow and is provided with a vacuum heating structure.

3. A calcium chloride desiccant rebaking apparatus according to claim 2, wherein: The lower side of one of the bearing frames (2) is provided with a motor (8), the motor (8) is fixed in the device shell (1), one side of the motor (8) is rotatably connected with a driving pulley (9), a driven pulley (10) is arranged above the driving pulley (9), a belt is sleeved on the outer side of the driving pulley (9) and the driven pulley (10), the driven pulley (10) is coaxially fixed on a worm (11), the worm (11) is horizontally rotatably connected to the outer side of the bearing frame (2), a worm gear (12) is arranged above the worm (11) in a matching and meshing manner, and the worm gear (12) is coaxially fixed to the outer side of the sealing cover (3).

4. A calcium chloride desiccant rebaking apparatus according to claim 1, characterized in that: The drying tank structure includes a drying tank (4), the drying tank (4) is internally and sealingly fixed with a drying liner (5), the drying liner (5) is penetrated at the upper and lower ends, sealing rings (6) are inlaid at the upper and lower ports of the drying liner (5), sealing covers (7) are abutted on the inner side of the sealing rings (6), one side of the sealing cover (7) is hinged to the drying tank (4), and the other side of the sealing cover (7) is fixed to the drying tank (4) through a spring buckle.

5. A calcium chloride desiccant rebaking apparatus as claimed in claim 1, wherein: The vacuum heating structure includes a heating structure and a vacuum structure, the heating structure includes a return pipe (13), one end of the return pipe (13) is downwardly communicated with a water supply device, the other end of the return pipe (13) penetrates the drying tank (4) and is communicated with the cavity between the drying tank (4) and the drying liner (5), the return pipe (13) is coaxially provided with a liquid inlet pipe (14) in the inside, one end of the liquid inlet pipe (14) is also communicated with the cavity between the drying tank (4) and the drying liner (5), and the other end of the liquid inlet pipe (14) penetrates the side wall of the return pipe (13) and is communicated with the water supply device through the interface (15).

6. A calcium chloride desiccant rebaking apparatus according to claim 5, wherein: The vacuum structure includes a vacuum pressure gauge (16), one end of the vacuum pressure gauge (16) is communicated with a vacuum pump through the interface (15), the other end of the vacuum pressure gauge (16) is communicated with an air exhaust pipe (17), and the other end of the air exhaust pipe (17) penetrates the drying tank (4) and the drying liner (5) and is fixedly provided with a filter screen (18).