A tumbler dryer insulation structure

Abstract

The utility model discloses a kind of rotary drum dryer heat preservation structures, it is related to rotary drum dryer technical field, including two housings, housing both ends outer side is fixedly connected with heat preservation plate, two housing inner side is equipped with mounting groove, mounting groove inner side is clamped with side plate, the utility model first needs to accurately insert heat preservation plate into the mounting groove of housing inner side, subsequently install arc plate, it is located heat preservation plate upper and lower, improve the anti-vibration performance and stability of overall structure by structure covering and crimping, after arc plate is installed, then clamping plate is inserted into housing clamping groove, alignment accurate is needed during installation, prevent deviation, ensure that under stress do not fall off, finally use threaded rod and mechanically connect opposite clamping plate, keep horizontal and align hole position during threading process, after threading, two ends are rotated and installed nut and locked, to realize firm locking, enhance the reliability and anti-seismic capacity of heat preservation assembly whole, avoid running and produce loosening or displacement risk.

Description

Technical Field

[0001] This utility model relates to the field of rotary drum dryer technology, and in particular to a heat preservation structure for a rotary drum dryer. Background Technology

[0002] A rotary drum dryer is a drying equipment used in bentonite processing. It mainly uses the rotation of the drum to make the bentonite fully contact with the hot airflow inside the drum, thereby achieving the purpose of moisture evaporation and bentonite drying.

[0003] However, in the existing technology, the rotary drum dryer, as a drying equipment for bentonite processing, has an insulation structure that is only connected by simple fitting or a few fasteners during operation. Under continuous vibration, gaps, displacement, or even detachment are likely to occur. As a result, the insulation board and the outer shell will become loose due to structural loosening, leading to increased heat exchange and reduced insulation effect. Utility Model Content

[0004] The purpose of this utility model is to solve the problem that existing insulation structures, which are only connected by simple fitting or a few fasteners, are prone to gaps, displacement, or even falling off under continuous vibration. Therefore, this utility model proposes an insulation structure for a rotary dryer.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a heat preservation structure for a rotary dryer, comprising two outer shells, with heat preservation plates fixedly connected to the outer sides of both ends of the outer shells, and mounting grooves opened on the inner sides of both outer shells, with side plates snapped into the inner sides of the mounting grooves, and two symmetrical slots opened on the top and bottom of the outer shells, and two mounting mechanisms installed on the inner sides of the outer shells.

[0006] The mounting mechanism includes a snap-fit ​​plate that snaps into the inside of the slot. The top and bottom of the side plate are fitted with arc-shaped plates, and the outer sides of the arc-shaped plates are fixedly connected to the two snap-fit ​​plates.

[0007] Preferably, both snap-fit ​​plates have a first threaded rod extending through them, and both ends of the first threaded rod are threaded with a first nut.

[0008] Preferably, a second threaded rod is passed through the top and bottom of both side plates.

[0009] Preferably, the outer surfaces of both ends of the second threaded rod are threaded with a second nut.

[0010] Preferably, a wear-resistant layer is provided on the inner side of the insulation board, and a ceramic insulation layer is compositely connected to the outer side of the wear-resistant layer.

[0011] Preferably, a composite board is compositely connected to the outside of the ceramic insulation layer, and an outer layer of insulation coating is compositely connected to the outside of the composite board.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] 1. In this utility model, the insulation board must first be accurately embedded into the mounting groove inside the outer shell. Then, the arc-shaped plate is installed, which is located above and below the insulation board. The overall structure's vibration resistance and stability are improved through structural covering and pressing. After the arc-shaped plate is installed, the snap-fit ​​plate is embedded into the outer shell's snap-fit ​​groove. During installation, the alignment must be accurate to prevent displacement and ensure that it does not fall off under force. Finally, the threaded rod is used to mechanically connect the corresponding snap-fit ​​plates. During the insertion process, keep it horizontal and align it with the hole. After insertion, tighten the nuts at both ends and lock it to achieve a firm lock, enhance the overall reliability and vibration resistance of the insulation component, and avoid the risk of loosening or displacement during operation.

[0014] 2. In this utility model, the initial positioning and docking are achieved by the side plate located at the docking end of the outer shell, ensuring the axial and radial precision matching. Subsequently, the through threaded rod provides axial fastening force, and the nut combined with the locking device effectively prevents loosening, ensuring a stable connection under high temperature or high load conditions. The outer layer of thermal insulation coating has good heat insulation and corrosion resistance properties, which helps to reduce the temperature of the outer shell and improve safety. The composite board layer prevents the thermal insulation material from loosening and falling off through structural bonding, while also having thermal resistance and toughness to alleviate the stress caused by thermal expansion and contraction. The ceramic insulation layer, as the core thermal insulation barrier, blocks the heat transfer due to its low thermal conductivity and high temperature stability. The innermost wear-resistant layer withstands the scouring of high-speed bentonite and isolates the direct damage of high temperature to the cylinder, ensuring structural integrity and long-term operational safety. Attached Figure Description

[0015] Figure 1 This utility model provides an overall three-dimensional structural diagram of the heat preservation structure for a rotary dryer;

[0016] Figure 2 This utility model provides a three-dimensional structural diagram of the heat preservation structure of a rotary dryer;

[0017] Figure 3 This utility model provides an exploded three-dimensional structural diagram of the insulation structure of a rotary dryer;

[0018] Figure 4 This utility model provides a cross-sectional view of the insulation board of a rotary dryer insulation structure.

[0019] Legend: 1. Outer shell; 11. Slot; 12. Mounting slot; 2. Mounting mechanism; 21. Curved plate; 22. Snap-fit ​​plate; 23. First threaded rod; 24. First nut; 3. Side plate; 31. Second threaded rod; 32. Second nut; 4. Insulation board; 41. Outer layer of insulation coating; 42. Composite board; 43. Ceramic insulation layer; 44. Wear-resistant layer. Detailed Implementation

[0020] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0021] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0022] Example 1: As Figures 1-3 As shown, this utility model provides a heat preservation structure for a rotary dryer, including two outer shells 1. Heat preservation plates 4 are fixedly connected to the outer sides of both ends of the outer shells 1. The inner sides of both outer shells 1 are provided with mounting grooves 12. Side plates 3 are snapped into the inner sides of the mounting grooves 12. Two slots 11 are symmetrically opened at the top and bottom of the outer shells 1. Two mounting mechanisms 2 are installed on the inner sides of the outer shells 1.

[0023] The mounting mechanism 2 includes a snap-fit ​​plate 22, which snaps into the inside of the slot 11. The top and bottom of the side plate 3 are both fitted with arc-shaped plates 21, and the outer sides of the arc-shaped plates 21 are fixedly connected to the two snap-fit ​​plates 22.

[0024] The specific settings and functions of this embodiment will be described in detail below. During the assembly of this device, the insulation board 4 must first be accurately installed into the corresponding mounting slots 12 on the inner sides of the two outer shells 1. This step requires the operator to check the dimensions of the insulation board 4 against the specifications of the mounting slots 12 to ensure a smooth and tight fit during the installation process, avoiding any loosening or displacement, thereby providing a stable foundation for the subsequent installation of components.

[0025] Next, the curved plate 21 is installed. This curved plate 21 needs to be installed on both the upper and lower sides of the insulation board 4. Its design purpose is to further enhance the vertical stability of the insulation board 4 and the overall vibration resistance of the structure through structural covering and pressing. After the curved plate 21 is installed, the snap-fit ​​plate 22 is installed by engaging with the pre-set slot 11 on the outer shell 1. When the snap-fit ​​plate 22 is inserted into the slot 11, it should be ensured that the snap-fit ​​position is accurate to avoid offset or misalignment, and to ensure that it does not loosen under stress.

[0026] Subsequently, the two snap-fit ​​plates 22 are mechanically connected via the first threaded rod 23. During operation, the first threaded rod 23 must be passed sequentially through the holes of the two oppositely positioned snap-fit ​​plates 22, ensuring the threaded rod remains horizontal and aligned with the axis of the holes. After insertion, the first nuts 24 are tightened at both ends of the first threaded rod 23, locking it to one side of the snap-fit ​​plate 22. This step further secures the snap-fit ​​plates 22 through mechanical locking force, thereby enhancing the stability and reliability of the entire insulation assembly and preventing loosening, vibration, or displacement during operation.

[0027] Example 2: Figures 2-4 As shown, both snap-fit ​​plates 22 have a first threaded rod 23 extending through them, and both ends of the first threaded rod 23 are threaded with a first nut 24. The top and bottom ends of both side plates 3 have second threaded rods 31 extending through them. Both ends of the second threaded rod 31 are threaded with a second nut 32. A wear-resistant layer 44 is provided on the inner side of the insulation board 4, and a ceramic insulation layer 43 is compositely connected to the outer side of the wear-resistant layer 44. A composite board 42 is compositely connected to the outer side of the ceramic insulation layer 43, and an outer layer of insulation coating 41 is compositely connected to the outer side of the composite board 42.

[0028] The overall effect of this embodiment is that, when connecting the two outer shells 1, initial positioning and docking are achieved through two side plates 3 located at the mating ends of the outer shells 1, ensuring the accuracy of their fit in the axial and radial directions. Subsequently, a second threaded rod 31 is installed along the pre-set threaded holes in the side plates 3. This threaded rod serves to connect through and provide axial fastening force. After installation, second nuts 32 are installed at both ends of the second threaded rod 31 and secured with locking devices such as anti-loosening washers or lock nuts to prevent loosening of the connection due to vibration or thermal expansion and contraction during operation. Through the reasonable design and installation of this structure, a stable and secure connection between the two outer shells 1 can be ensured under high temperature or high load conditions.

[0029] The outermost layer is the thermal insulation coating layer 41. This layer not only has good heat reflection and insulation performance, but also effectively resists the direct erosion of the internal structure by the external environment, thereby extending the overall system life and reducing the surface temperature of the outer shell, improving operational safety and energy saving.

[0030] Composite panel 42 primarily serves to support and secure the internal insulation material. Its close fit to the cylinder structure effectively prevents the insulation material from loosening, shifting, or falling off during cylinder operation due to rotation or vibration. Simultaneously, composite panel 42 possesses inherent thermal resistance and toughness, which can disperse stress generated by thermal expansion and contraction, reducing the probability of thermal fatigue damage.

[0031] The ceramic insulation layer 43 is made of high-performance ceramic materials, which have extremely low thermal conductivity and excellent high-temperature stability. It can significantly block the outward conduction of high temperature and is the core thermal insulation barrier in the entire insulation structure.

[0032] The innermost layer is the wear-resistant layer 44, which is in direct contact with the high-temperature bentonite inside the cylinder. This layer is usually made of special alloy or high-performance ceramic coating materials. It can not only withstand the friction and erosion of high-speed bentonite, but also effectively isolate the cylinder substrate from direct damage caused by high temperature, thereby protecting the integrity of the cylinder structure and the safety of long-term operation.

[0033] The usage and working principle of this device are as follows: During installation, the insulation board 4 is first clamped into the mounting grooves 12 of the two outer shells 1. Next, the arc-shaped plates 21 are installed on both the top and bottom of the insulation board 4 to further improve the firmness and stability of the insulation board 4 installation. Simultaneously, the clamping slots 11 can be used to clamp the clamping plates 22 to ensure accurate installation. Furthermore, the first threaded rod 23 is passed through the two clamping plates 22, and the first nuts 24 are installed at both ends of the first threaded rod 23, positioned on one side of the clamping plates 22, thus completing the fixation.

[0034] When connecting the two outer shells 1, first assemble the two side plates 3 together, then install the second threaded rod 31, and lock the second nuts 32 at both ends of the second threaded rod 31 to complete the assembly of the two outer shells 1.

[0035] In practical use, the outer layer 41 of the thermal insulation coating can protect the internal thermal insulation structure from the influence of the external environment and reduce the surface temperature; the composite board 42 can fix the inner thermal insulation material and prevent it from falling off due to the rotation and vibration of the cylinder, while further reducing heat penetration and also having the function of buffering thermal expansion and contraction stress; the ceramic insulation layer 43 can further block the transmission of high temperature to the outside; the wear-resistant layer 44 is in direct contact with the high temperature environment inside the rotating cylinder and can resist bentonite friction, impact and high temperature erosion, protecting the cylinder substrate.

[0036] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A heat preservation structure for a rotary dryer, comprising two outer shells (1), wherein heat preservation plates (4) are fixedly connected to the outer sides of both points of the outer shells (1), characterized in that: The inner sides of both outer shells (1) are provided with mounting grooves (12), and side plates (3) are snapped into the inner sides of the mounting grooves (12). The top and bottom of the outer shells (1) are symmetrically provided with two slots (11), and two mounting mechanisms (2) are installed on the inner sides of the outer shells (1). The installation mechanism (2) includes a snap-fit ​​plate (22), which snaps into the inner side of the slot (11). The top and bottom of the side plate (3) are both fitted with arc-shaped plates (21), and the outer sides of the arc-shaped plates (21) are fixedly connected to the two snap-fit ​​plates (22).

2. The heat preservation structure for a rotary dryer according to claim 1, characterized in that: Both of the snap-fit ​​plates (22) are perforated by a first threaded rod (23), and the outer surfaces of both ends of the first threaded rod (23) are threaded with a first nut (24).

3. The heat preservation structure for a rotary dryer according to claim 1, characterized in that: The top and bottom ends of both side plates (3) are perforated with second threaded rods (31).

4. The heat preservation structure for a rotary dryer according to claim 3, characterized in that: The outer surfaces of both ends of the second threaded rod (31) are threaded with second nuts (32).

5. The heat preservation structure for a rotary dryer according to claim 1, characterized in that: The inner side of the insulation board (4) is provided with a wear-resistant layer (44), and a ceramic insulation layer (43) is compositely connected to the outer side of the wear-resistant layer (44).

6. The heat preservation structure for a rotary dryer according to claim 5, characterized in that: The ceramic insulation layer (43) is compositely connected to a composite board (42) on the outside, and the composite board (42) is compositely connected to an outer layer of insulation coating (41).

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