Heat preservation outer cover device of drying kettle

Abstract

The utility model provides a heat preservation outer cover device of a drying kettle, which comprises a drying kettle main body, an upper heat preservation outer cover and a lower heat preservation outer cover, feed pipes are longitudinally fixed on the left side and the right side of the upper end of the drying kettle main body, valves are arranged in the two feed pipes, and the upper heat preservation outer cover penetrates through the two feed pipes to cover the upper end outside the drying kettle main body. The upper heat preservation outer cover is attached to the upper end of the outer portion of the drying kettle body, the lower heat preservation outer cover is attached to the lower end of the outer portion of the drying kettle body, installation grooves are formed in the inner side of the upper heat preservation outer cover and the inner side of the lower heat preservation outer cover, and polyurethane coatings are fixed in the two installation grooves. In order to solve the problems of poor heat preservation effect and inconvenience in disassembly in the prior art, the utility model adopts a multi-layer composite structure, can obviously reduce the heat conductivity coefficient, improve the heat preservation effect and reduce the heat loss, and adopts a block assembly type design, thereby being convenient to quickly install and use outside the drying kettle.

Description

Technical Field

[0001] This utility model is an insulation cover device for a drying kettle, belonging to the field of drying kettle technology. Background Technology

[0002] A drying kettle is a device used for drying, heating, or chemical reactions of materials, and is widely used in industries such as chemical, pharmaceutical, and food processing. To improve drying efficiency and reduce heat loss, drying kettles are usually equipped with an insulated outer casing.

[0003] However, existing heat-insulating covers mostly use simple heat-insulating materials, have a relatively simple structure, and suffer from poor heat insulation effect and inconvenience in disassembly. There is an urgent need for a heat-insulating cover device for drying kettles to solve the above-mentioned problems. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a heat preservation cover device for a drying kettle to solve the problems mentioned in the background technology. This utility model adopts a multi-layer composite structure, which can significantly reduce the thermal conductivity, improve the heat preservation effect, and reduce heat loss. At the same time, it adopts a modular assembly design, which facilitates quick installation and use on the outside of the drying kettle.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a heat-insulating outer cover device for a drying kettle, comprising a drying kettle body, an upper heat-insulating outer cover, and a lower heat-insulating outer cover. Feed pipes are longitudinally fixed to the left and right sides of the upper end of the drying kettle body, and valves are installed inside each of the two feed pipes. The upper heat-insulating outer cover passes through the two feed pipes and covers the upper part of the drying kettle body. The lower heat-insulating outer cover is fitted to the lower part of the drying kettle body. Mounting grooves are provided on the inner sides of both the upper and lower heat-insulating outer covers. Polyurethane coatings are fixed in both mounting grooves. Vacuum insulation panels are fixed inside the inner sides of both polyurethane coatings. All are covered with aerogel felt, and aluminum foil reflective film is attached to the inner side of both aerogel felts; multiple flanges are fixed to the lower sides of the front and rear ends of the upper insulation cover, and multiple stepped cylinders are fixed to the upper sides of the front and rear ends of the lower insulation cover. Fixed cylinders are fixed to the outside of the multiple flanges, and fixed rings are fixed longitudinally inside the multiple fixed cylinders. Connecting rods slide through the multiple fixed rings, and moving rings are fixed longitudinally to the inner ends of the multiple connecting rods. Return springs are installed on the surface of the multiple moving rings, and connecting plates are installed to the outer sides of the multiple connecting rods. Swing rods are fixed to the lower ends of the multiple connecting plates, and plug rods are welded to the other ends of the multiple swing rods.

[0006] Furthermore, the two aluminum foil reflective films are respectively tightly bonded to the outer surface of the drying kettle body.

[0007] Furthermore, both the upper and lower insulation covers are made of the same fiberglass or aluminum alloy material.

[0008] Furthermore, the movable ends of the plurality of reset springs abut against the plurality of fixed rings respectively.

[0009] Furthermore, semi-circular fasteners are installed on the exterior of each of the connecting discs.

[0010] Furthermore, the plurality of the aforementioned plug rods are respectively inserted into the plurality of stepped cylinders.

[0011] The beneficial effects of this utility model are as follows: This utility model provides a heat preservation cover device for a drying kettle. Because this utility model adds an upper heat preservation cover, a lower heat preservation cover, a polyurethane coating, a vacuum insulation board, an aerogel felt, and an aluminum foil reflective film, our design improvements and actual use have shown that this device has a reasonable structure and good practicality. The multi-layer composite structure can significantly reduce the thermal conductivity, improve the heat preservation effect, and reduce heat loss. At the same time, it adds a fixed cylinder, a fixed ring, a moving ring, a return spring, a connecting rod, a connecting plate, a swing rod, a plug-in rod, and a stepped cylinder. The modular assembly design facilitates quick installation and use on the outside of the drying kettle. Attached Figure Description

[0012] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0013] Figure 1 This is a three-dimensional schematic diagram of the overall structure of the heat-insulating outer cover device for a drying kettle according to the present invention;

[0014] Figure 2 This is a schematic diagram of the interior of the lower insulation cover of the insulation cover device for a drying kettle according to the present invention;

[0015] Figure 3 This is a right-side cross-sectional view of the fixing cylinder of the heat-insulating outer cover device for a drying kettle according to this utility model.

[0016] In the diagram: 1-Drying kettle body, 2-Feed pipe, 3-Valve, 4-Upper insulation cover, 5-Lower insulation cover, 6-Flange, 7-Fixing cylinder, 8-Fixing ring, 9-Moving ring, 10-Reset spring, 11-Connecting rod, 12-Connecting plate, 13-Semi-circular fastener, 14-Swing rod, 15-Plug-in rod, 16-Stepped cylinder, 17-Mounting groove, 18-Polyurethane coating, 19-Vacuum insulation board, 20-Aerogel felt, 21-Aluminum foil reflective film. Detailed Implementation

[0017] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0018] Please see Figures 1-3 This utility model provides a technical solution: a heat-insulating outer cover device for a drying kettle, including a drying kettle body 1, an upper heat-insulating outer cover 4, and a lower heat-insulating outer cover 5. Feed pipes 2 are longitudinally fixed on both the left and right sides of the upper end of the drying kettle body 1. Valves 3 are installed inside each of the two feed pipes 2. The upper heat-insulating outer cover 4 passes through the two feed pipes 2 and covers the upper part of the drying kettle body 1. The lower heat-insulating outer cover 5 is attached to the lower part of the drying kettle body 1. Mounting grooves 17 are provided on the inner sides of both the upper and lower heat-insulating outer covers 4 and 5. Polyurethane coatings 18 are fixed in both mounting grooves 17. Vacuum insulation boards 19 are fixed inside both polyurethane coatings 18. Aerogel felts 20 are attached to the inner sides of both vacuum insulation boards 19. Aluminum foil reflective films 21 are attached to the inner sides of both aerogel felts 20. Multiple flanges 6 are fixed to the lower sides of the front and rear ends of the cover 4. Multiple stepped cylinders 16 are fixed to the upper sides of the front and rear ends of the lower insulation cover 5. Fixed cylinders 7 are fixed to the outside of the multiple flanges 6. Fixed rings 8 are fixed longitudinally inside the multiple fixed cylinders 7. Connecting rods 11 slide through the multiple fixed rings 8. Moving rings 9 are fixed longitudinally to the inner ends of the multiple connecting rods 11. Return springs 10 are installed on the surface of the multiple moving rings 9. Connecting plates 12 are installed to the outer sides of the multiple connecting rods 11. Swing rods 14 are fixed to the lower ends of the multiple connecting plates 12. Insertion rods 15 are welded to the other ends of the multiple swing rods 14. This design solves the problems of existing drying kettle insulation covers, which mostly use simple heat insulation materials, have a relatively simple structure, and have poor heat insulation effect and inconvenient disassembly.

[0019] As the first embodiment of this utility model: two aluminum foil reflective films 21 are tightly attached to the outer surface of the drying kettle body 1 respectively. By adding two aluminum foil reflective films 21 and tightly attaching them to the outer surface of the drying kettle body 1 respectively, they serve as the first heat insulation barrier, reducing heat loss, reflecting heat radiation, and reducing the outward transmission of heat from the drying kettle body 1.

[0020] Both the upper insulation cover 4 and the lower insulation cover 5 are made of the same fiberglass or aluminum alloy. By adding the upper insulation cover 4 and the lower insulation cover 5, which are made of the same fiberglass or aluminum alloy, they can provide mechanical protection, prevent physical damage to the internal layers, and are resistant to high temperature and corrosion, thus adapting to the high-temperature working environment of the drying kettle body 1.

[0021] Multiple return springs 10 have their movable ends abutting against multiple fixed rings 8. These additional return springs 10 push multiple moving rings 9, causing them to move multiple connecting rods 11 and multiple connecting discs 12. This allows the connecting discs 12 to fit tightly against the front ends of multiple fixed cylinders 7, preventing the swing rods 14 from loosening and preventing the insertion rods 15 from easily loosening within the stepped cylinders 16. Each connecting disc 12 has a semi-circular fastener 13 installed on its exterior, facilitating the pulling of the connecting discs 12 outwards. The insertion rods 15 are inserted into the stepped cylinders 16, enabling quick and easy installation and fixation between the upper insulation cover 4 and the lower insulation cover 5.

[0022] As a second embodiment of this utility model: First, the upper insulation cover 4 is passed through the two feed pipes 2 and placed over the upper part of the dryer body 1. Then, the lower insulation cover 5 is attached to the lower part of the dryer body 1. Next, multiple semi-circular fasteners 13 are pulled outward, causing multiple connecting discs 12, multiple connecting rods 11, and multiple connecting discs 12 to be pulled. During this process, multiple return springs 10 are forced to compress on one side of multiple fixing rings 8. Then, multiple swing rods 14 are swung until multiple insertion rods 15 are respectively facing multiple stepped cylinders 16. Then, the multiple semi-circular fasteners 13 are released, and multiple return springs 10 are reset, which will drive multiple connecting discs 12, multiple connecting rods 11, and multiple connecting discs 12 to reset. At the same time, multiple swing rods 14 will drive multiple insertion rods 15 to be inserted into multiple stepped cylinders 16 respectively. At this time, the upper insulation cover 4 and the lower insulation cover 5 are quickly installed and fixed. And the two aluminum foil reflective films 21 are tightly attached to the outer surface of the dryer body 1, serving as the first heat insulation barrier. To reduce heat loss, reflect heat radiation, and minimize heat transfer from the main body 1 of the drying vessel, two aerogel felts 20 with extremely low thermal conductivity (0.015-0.025 W / m·K) are currently the best known solid insulation materials, providing efficient insulation performance and further reducing heat transfer. Two vacuum insulation panels 19 with extremely low thermal conductivity (0.004-0.008 W / m·K) can significantly improve the insulation effect. As the outermost insulation barrier, they minimize heat loss and have high structural strength, allowing them to withstand certain external pressures. Two polyurethane coatings 18 prevent external moisture penetration, protect each insulation layer from moisture, extend the service life of the insulation layer, and avoid performance degradation due to moisture. The upper insulation cover 4 and the lower insulation cover 5 are made of the same fiberglass or aluminum alloy, which provides mechanical protection, prevents physical damage to the internal layers, and is resistant to high temperatures and corrosion, adapting to the high-temperature working environment of the main body 1 of the drying vessel, ensuring the insulation of the main body 1 of the drying vessel.

[0023] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model 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 basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0024] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A heat-insulating outer cover device for a drying kettle, comprising a drying kettle body (1), an upper heat-insulating outer cover (4), and a lower heat-insulating outer cover (5), characterized in that: The upper left and right sides of the main body (1) of the drying kettle are both longitudinally fixed with feed pipes (2), and valves (3) are installed in both feed pipes (2); The upper heat insulation cover (4) passes through two feed pipes (2) and covers the upper part of the dryer body (1). The lower heat insulation cover (5) is attached to the lower part of the dryer body (1). The upper heat insulation cover (4) and the lower heat insulation cover (5) are provided with mounting grooves (17) on their inner sides. Polyurethane coatings (18) are fixed in both mounting grooves (17). Vacuum insulation boards (19) are fixed in the inner sides of both polyurethane coatings (18). Aerogel felts (20) are attached to the inner sides of both vacuum insulation boards (19). Aluminum foil reflective films (21) are attached to the inner sides of both aerogel felts (20). Multiple flanges (6) are fixed to the lower sides of the front and rear ends of the upper insulation cover (4). Multiple stepped cylinders (16) are fixed to the upper sides of the front and rear ends of the lower insulation cover (5). Fixed cylinders (7) are fixed to the outside of the multiple flanges (6). Fixed rings (8) are fixed longitudinally inside the multiple fixed cylinders (7). Connecting rods (11) slide through the multiple fixed rings (8). Moving rings (9) are fixed longitudinally to the inner ends of the multiple connecting rods (11). Return springs (10) are installed on the surface of the multiple moving rings (9). Connecting plates (12) are installed to the outer sides of the multiple connecting rods (11). Swing rods (14) are fixed to the lower ends of the multiple connecting plates (12). Insertion rods (15) are welded to the other ends of the multiple swing rods (14).

2. The heat-insulating outer cover device for a drying kettle according to claim 1, characterized in that: The two aluminum foil reflective films (21) are tightly attached to the outer surface of the drying kettle body (1).

3. The heat-insulating outer cover device for a drying kettle according to claim 1, characterized in that: The upper insulation cover (4) and the lower insulation cover (5) are both made of the same fiberglass or aluminum alloy.

4. The heat-insulating outer cover device for a drying kettle according to claim 1, characterized in that: The movable ends of the plurality of reset springs (10) abut against the plurality of fixed rings (8).

5. The heat-insulating outer cover device for a drying kettle according to claim 1, characterized in that: Semicircular fasteners (13) are installed on the outside of each of the connecting discs (12).

6. The heat-insulating outer cover device for a drying kettle according to claim 1, characterized in that: Multiple insertion rods (15) are respectively inserted into multiple stepped cylinders (16).

Images