Uniform drying device for expandable graphite
By designing an expandable graphite uniform drying device, and utilizing the cooperation of the drive mechanism and controller, the expansion graphite is dried in all directions, solving the problem of incomplete drying in existing equipment and ensuring complete removal of internal moisture.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGAN JIN YOU DA DIANYE SCI & TECH CO LTD
- Filing Date
- 2025-06-13
- Publication Date
- 2026-05-15
AI Technical Summary
Existing drying equipment for low-temperature expandable graphite production has the problem of incomplete drying, where the surface graphite is dry but the interior still retains moisture.
An expandable graphite uniform drying device was designed, including a frame, a drive mechanism, a drying chamber and a controller. The drive mechanism drives the drying chamber to reciprocate, and combined with the control of unidirectional air intake and exhaust valves, it ensures that the expanded graphite is fully exposed to hot air and water vapor is discharged during the drying process.
It achieves all-round drying of expanded graphite, solves the problem of residual internal moisture, and improves the drying effect.
Smart Images
Figure CN224246607U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of expandable graphite processing technology, and relates to an expandable graphite uniform drying device. Background Technology
[0002] Graphite crystals possess a hexagonal, planar, layered structure composed of carbon atoms. Carbon atoms on the planes of the layers are bonded by strong covalent bonds, while the layers are bonded by van der Waals forces, which are very weak, and the interlayer distances are relatively large. Therefore, under suitable conditions, various chemical substances such as acids, alkali metals, and salts can insert into the graphite interlayers and combine with carbon atoms to form new chemical phases—graphite interlayer compounds. When heated to a suitable temperature, these interlayer compounds can rapidly decompose, producing a large amount of gas, causing the graphite to expand along its axis into a worm-like new substance—expanded graphite. This unexpanded graphite interlayer compound is expandable graphite.
[0003] Most existing methods for drying low-temperature expandable graphite are hot air drying. Because hot air is blown into the drying chamber, the surface graphite is often dried, but the graphite inside still retains moisture. Utility Model Content
[0004] The purpose of this invention is to provide an expandable graphite uniform drying device, which solves the problem of incomplete drying in existing drying equipment.
[0005] The technical solution adopted in this utility model is as follows:
[0006] An expandable graphite uniform drying device includes a frame, a drive mechanism, a drying chamber, and a controller. The frame is installed on a working surface, and the drying chamber is horizontally rotatably installed on the frame. The drying chamber is V-shaped, with a one-way exhaust valve at the top corner and a one-way air inlet valve at the lower part of at least one side of the drying chamber. The drying chamber has a heating jacket, with a hot air fan connected to the heating jacket at one end of the drying chamber and an exhaust port at the heating jacket at the other end of the drying chamber. The drive mechanism is adapted to drive the drying chamber to reciprocate around the line connecting its two ends. The input end of the controller is connected to the drive mechanism, and the output end of the controller is connected to the one-way air inlet valve and the one-way exhaust valve.
[0007] Furthermore, one-way air inlet valves are provided on the lower part of both sides of the drying chamber.
[0008] Furthermore, the feed inlet of the drying chamber is located at its top corner.
[0009] Furthermore, the inner top corner of the drying chamber is smoothly transitioned.
[0010] Furthermore, the drive mechanism includes a motor.
[0011] Furthermore, the controller is also connected to a control panel.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0013] The drying device of this utility model includes a frame, a drive mechanism, a drying chamber, and a controller. During operation, the expanded graphite to be dried is loaded into the drying chamber. Driven by the drive mechanism, the drying chamber oscillates back and forth. During the oscillation, hot air passes through the interlayer and carries away the heat inside the drying chamber. During the oscillation of the drying chamber, the V-shaped drying chamber forms a V-shape. When the top corner of the drying chamber is at its lowest position, the expanded graphite accumulates and mixes, so that one side of the V-shape moves towards the other side. During the rotation of the top corner of the drying chamber to its highest position, the expanded graphite moves upward along one side and fully contacts the wall. Similarly, during the rotation of the top corner of the drying chamber to its lowest position, the expanded graphite moves downward along one side and fully contacts the wall. This solves the problem of incomplete drying in existing drying equipment. The controller controls the opening of the one-way air inlet valve and the one-way air outlet valve to drain the steam when the top corner of the drying chamber is at its highest position. Attached Figure Description
[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort, wherein:
[0015] Figure 1 This is a schematic diagram of the structure of an expandable graphite uniform drying device according to an embodiment of the present invention.
[0016] Marked in the image:
[0017] 10-Frame;
[0018] 20-Drive mechanism;
[0019] 30-Drying chamber; 31-One-way exhaust valve; 32-One-way air inlet valve; 33-Exhaust port; 34-Feed inlet; 35-Heating jacket; 36-Hot air blower;
[0020] 40 - Controller. Detailed Implementation
[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the present utility model and are not intended to limit the present utility model; that is, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The components of the embodiments of the present utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0022] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0023] It should be noted that relational terms such as "first" and "second" are used merely 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.
[0024] As described in the background section, graphite crystals possess a hexagonal planar layered structure composed of carbon atoms. Carbon atoms on the planar layers are bonded by strong covalent bonds, while the layers are bonded by van der Waals forces, which are very weak, and the interlayer distances are relatively large. Therefore, under appropriate conditions, various chemical substances such as acids, alkali metals, and salts can insert into the graphite interlayers and combine with carbon atoms to form new chemical phases—graphite interlayer compounds. When heated to a suitable temperature, these interlayer compounds can rapidly decompose, producing a large amount of gas, causing the graphite to expand along its axis into a worm-like new substance, i.e., expanded graphite. This unexpanded graphite interlayer compound is expandable graphite. Currently, most low-temperature expandable graphite production methods use hot air drying. Because hot air is blown into the drying chamber, the surface graphite often dries, but the graphite deposited inside still retains moisture.
[0025] Based on this, the inventors created an expandable graphite uniform drying device as described in this application to solve the above-mentioned technical problems.
[0026] The features and performance of this utility model will be further described in detail below with reference to the embodiments. Example
[0027] Please see Figure 1 An expandable graphite uniform drying device includes a frame 10, a drive mechanism 20, a drying chamber 30, and a controller 40. The frame 10 is installed on the working surface. Here, the frame 10 can be driven to the ground with anchor bolts or fixed to the ground with cement piles, but this utility model is not limited to these methods.
[0028] The drying chamber 30 is horizontally rotatably mounted on the frame 10. The drying chamber 30 is V-shaped, with a one-way exhaust valve 31 at its apex and a one-way intake valve 32 at the lower part of at least one side. The drying chamber 30 has a heating jacket 35, with a hot air blower 36 connected to one end of the heating jacket 35 and an exhaust port 33 at the other end of the heating jacket 35. It should be noted that the apex of the drying chamber 30 is the included angle of the V-shape, which can be smoothly arranged and has a feed inlet 34 and a discharge outlet, which can be shared. For example, the heating jacket 35 can refer to the drying chamber 30 having a double-layer structure. The connecting pipe between the hot air blower 36 and the heating jacket 35 is a flexible hose with minimal reciprocating oscillation, allowing for easy movement.
[0029] The drive mechanism 20 is adapted to drive the drying chamber 30 to reciprocate around the line connecting its two ends. The input end of the controller 40 is connected to the drive mechanism 20, and the output end of the controller 40 is connected to the one-way air inlet valve 32 and the one-way air outlet valve 31. For example, the drive mechanism 20 can be a motor, such as a stepper motor or a servo motor, but this invention is not limited to this. Here, the reciprocating oscillation allows the expanded graphite to make full contact with the wall surface, ensuring that only one side of the wall is in contact with the wall surface.
[0030] The drying device of this utility model includes a frame 10, a drive mechanism 20, a drying chamber 30, and a controller 40. During operation, the expanded graphite to be dried is loaded into the drying chamber 30. Driven by the drive mechanism 20, the drying chamber 30 reciprocates. During the reciprocating swing, hot air passes through the interlayer and carries away the heat inside the drying chamber 30. During the reciprocating swing of the drying chamber 30, the V-shaped drying chamber 30 forms a V-shape. When the top corner of the drying chamber 30 is at its lowest position, the expanded graphite accumulates and mixes, so that one side of the V-shape moves towards the other side. During the process of the top corner of the drying chamber 30 rotating to its highest position, the expanded graphite moves upward along one side and fully contacts the wall. Similarly, during the process of the top corner of the drying chamber 30 rotating to its lowest position, the expanded graphite moves downward along one side and fully contacts the wall. This solves the problem of incomplete drying in existing drying equipment. The controller 40 controls the opening of the one-way air inlet valve 32 and the one-way exhaust valve 31 to drain the steam when the top corner of the drying chamber 30 is at its highest position.
[0031] In another embodiment, one-way air inlet valves 32 are provided on the lower part of both sides of the drying chamber 30. This arrangement ensures sufficient air exchange and reduces water vapor residue.
[0032] In another embodiment, the feed inlet 34 of the drying chamber 30 is located at its apex.
[0033] In another embodiment, the inner top corner of the drying chamber 30 is smoothly transitioned.
[0034] In another embodiment, the drive mechanism 20 includes a motor.
[0035] In another embodiment, the controller 40 is also connected to a control panel. This makes it easier and more convenient to adjust the speed and exhaust cycle of the drive mechanism 20.
[0036] The above description is only a preferred embodiment of the present utility model and is not intended to limit the scope of protection of the present utility model. Any modifications, equivalent substitutions and improvements made by those skilled in the art within the spirit and principles of the present utility model should be included within the scope of protection of the present utility model.
Claims
1. An expandable graphite uniform drying device, characterized in that, The device includes a frame, a drive mechanism, a drying chamber, and a controller. The frame is mounted on a working surface, and the drying chamber is horizontally rotatably mounted on the frame. The drying chamber is V-shaped, with a one-way exhaust valve at the top corner and a one-way intake valve at the bottom of at least one side. The drying chamber has a heating jacket, with a hot air fan connected to one end of the heating jacket and an exhaust port at the other end. The drive mechanism is adapted to drive the drying chamber to reciprocate around the line connecting its two ends. The input end of the controller is connected to the drive mechanism, and the output end of the controller is connected to the one-way intake valve and the one-way exhaust valve.
2. The expandable graphite uniform drying device according to claim 1, characterized in that, One-way air inlet valves are installed at the lower part of both sides of the drying chamber.
3. The expandable graphite uniform drying device according to claim 1, characterized in that, The feed inlet of the drying chamber is located at its top corner.
4. The expandable graphite uniform drying device according to claim 1, characterized in that, The drying chamber has a smooth transition at its inner top corner.
5. The expandable graphite uniform drying device according to claim 1, characterized in that, The drive mechanism includes a motor.
6. The expandable graphite uniform drying device according to claim 5, characterized in that, The controller is also connected to a control panel.