Aerogel drying device

Abstract

The present application provides an aerogel drying device, belonging to the technical field of liquid drying devices, comprising a drying kettle, a cabinet door, a gas outflow pipe and a carbon dioxide inflow pipe, wherein a bottom plate is slidably installed in the drying kettle, a first bracket is installed on the bottom plate, a quantitative sliding member is arranged on the first bracket, a placement rack is vertically arranged on the quantitative sliding member, a plurality of placement rack arrays are provided, a support seat for supporting the bottom of the aerogel and a support column for limiting the two sides of the aerogel are installed on the placement racks, a plurality of support column arrays are provided, a rubber pad is arranged around the support column, and a telescopic push rod for driving the quantitative sliding member to move is installed on the cabinet door; the present application can reduce the probability of water vapor entering other aerogels during the upward movement of solution water vapor by vertically placing the aerogel on the placement rack, thereby accelerating the drying of the aerogel and improving the work efficiency.

Description

Technical Field

[0001] The present application relates to the technical field of liquid drying devices, and in particular to an aerogel drying device. Background Art

[0002] Aerogel is a solid material with a nano-scale porous structure and high porosity. Its characteristics include extremely low thermal conductivity and density. It is the lowest density solid to date. The preparation of aerogel usually consists of a sol-gel process and a supercritical drying process. During the drying process, the gas replaces the liquid phase in the gel. The supercritical drying method for aerogel is usually achieved by a drying kettle. Its working principle is based on the special properties of the substance in the supercritical state. The commonly used drying medium is carbon dioxide because it has a lower critical temperature and pressure and is non-toxic.

[0003] Referring to the Chinese patent document with announcement number CN207570206U and titled A drying kettle for producing aerogel by supercritical alcohol method, it includes a drying aerogel kettle body, a vacuum system, a heat circulation pump and a recovery system. When in use, the aerogel material is first loaded into the drying kettle body, and the vacuum system is used to vacuum the drying kettle. The heat circulation pump heats the kettle body. As the temperature in the kettle rises, the pressure inside the kettle rises accordingly. The recovery system recovers and releases the pressure. Finally, the kettle body is cooled and the dried aerogel material is taken out. The vacuum system can make the inside of the equipment a vacuum state before the wet gel is dried, and remove the influence of other gases inside the equipment on the supercritical pressure. Through the alcohol recovery device, combined with the gas booster device, the recovery of raw materials in the kettle is realized, reducing costs.

[0004] Referring to the above technical solution, when the wet gel is placed in the drying kettle, the wet gel is often in a static state, and the carbon dioxide and the solvent are slowly contacted and gradually replaced, which takes a long time. In addition, when the wet gel is stacked horizontally, after the wet gel in the next layer is exchanged, the solvent contained in the wet gel will float upward and may enter the wet gel in the upper layer, affecting the exchange efficiency between the solvent and the gas, and thus easily reducing the drying efficiency of the aerogel. Summary of the invention

[0005] In view of this, the present application provides an aerogel drying device, which is mainly used to solve the problem that aerogel is difficult to dry quickly.

[0006] In order to solve the above technical problems, the present application provides an aerogel drying device, including a drying kettle, a cabinet door, a gas outflow pipe and a carbon dioxide inflow pipe, a bottom plate is slidably installed in the drying kettle, a first bracket is installed on the bottom plate, a quantitative sliding member is arranged on the first bracket, a placement rack is vertically arranged on the quantitative sliding member, the placement rack array is arranged in multiples, and the placement racks are all equipped with a support seat for supporting the bottom of the aerogel and a support column for limiting the two sides of the aerogel, the support column array is arranged in multiples, rubber pads are arranged around the support columns, a clamping member for clamping and limiting the first bracket is arranged on the bottom plate, and a telescopic push rod for driving the quantitative sliding member to move is installed on the cabinet door.

[0007] By adopting the above technical scheme, the quantitative sliding member can drive the placement rack to slide back and forth, so that the aerogel plate on the placement rack can shake to accelerate the contact with carbon dioxide. The vertical installation of the placement rack can ensure the vertical placement of the aerogel plate. During the process of the solution inside the aerogel plate exchanging with the gas, after the liquid is separated from the aerogel plate, the water vapor of the solution moves upward. The vertical placement of the plate can reduce the probability of the solution water vapor entering other plates, and can accelerate the drying efficiency of the plate. The support seat can support the bottom of the plate when it is placed vertically, and the support column can support the side wall of the plate. The rubber pad is made of soft rubber with high elasticity and damping characteristics, which can ensure that the impact force on the plate is reduced when the plate is shaken to prevent the plate from deformation. The telescopic push rod can provide driving force for the quantitative sliding member.

[0008] Optionally, the clamping member includes a fixed clamping plate fixedly mounted on the base plate, two sliding shafts are arranged on the fixed clamping plate, the two sliding shafts are arranged horizontally and are symmetrical to each other front and back, a top plate located on one side of the fixed clamping plate is fixedly mounted on the sliding shaft, a movable clamping plate is slidably arranged between the top plate and the fixed clamping plate, a first return spring is arranged on the top plate to drive the movable clamping plate to slide, and a support leg is installed at the bottom of the first bracket and is clamped between the movable clamping plate and the fixed clamping plate.

[0009] By adopting the above technical solution, each first bracket is provided with four supporting legs. When the clamping member clamps the first bracket, the setting of the four supporting legs can make the first bracket more stable. The movable clamping plate and the fixed clamping plate can clamp the supporting legs, so as to facilitate the disassembly or installation of the first bracket on the base plate. When the supporting legs are separated from the clamping member, the elastic force of the first return spring is restored, which can drive the movable clamping plate to approach the fixed clamping plate.

[0010] Optionally, the quantitative sliding member includes a slide plate fixedly mounted on the bottom of the placement rack, a groove for the slide plate to slide back and forth is opened on the first bracket, the groove limits the sliding direction of the slide plate, the slide plate is provided with a clamping block passing through the bottom of the first bracket, the clamping block is clamped on the sliding shaft, a limiting groove is opened on the first bracket, and the clamping block slides in the limiting groove.

[0011] By adopting the above technical solution, the slide plate can drive multiple placement racks to slide synchronously while sliding back and forth. The clamping block can be clamped and fixed on the sliding shaft. The clamping setting facilitates the disassembly or installation of the quantitative sliding parts, and the replacement of parts when necessary can reduce production costs. The limit groove can limit the sliding distance of the slide plate.

[0012] Optionally, a support rod is provided at the end of the slide plate, and a second return spring is arranged around the support rod.

[0013] By adopting the above technical solution, the limiting groove is set as a rectangular groove. When the clamping block slides from one end of the groove to the other end, the second return spring can drive the clamping block and the slide plate to return to their original positions, so that the slide plate slides back and forth.

[0014] Optionally, a support block is provided on the inner wall of the cabinet door, a support rod is slidably mounted on the support block, a clamping block abutting against the bottom plate is mounted at one end of the support rod, and a clamping spring is connected between the clamping block and the support block.

[0015] By adopting the above technical solution, when the cabinet door is closed, the pressing spring is compressed and the pressing block can press the bottom plate tightly.

[0016] Optionally, an elliptical limiting ring is symmetrically arranged on the first bracket, and a displacement axis located inside the elliptical limiting ring is arranged on both sides of the placement frame.

[0017] By adopting the above technical solution, when the aerogel sheet is in the process of reciprocating shaking, the bottom of the aerogel sheet is always in contact with the support seat, the aerogel sheet will shift up and down in the vertical position, and the displacement axis can shift up and down in the elliptical limit ring. Synchronously, the elliptical limit ring can limit the displacement axis to prevent the aerogel sheet from collapsing.

[0018] Optionally, the first bracket is provided with four hanging rings, the first bracket is provided as a rectangular frame, and the four hanging rings are respectively located at the four corners of the top of the first bracket.

[0019] By adopting the above technical solution, the hanging ring can be connected to the external hanging member, so that the first bracket is completely separated from the bottom plate, making it convenient to take out the aerogel sheet.

[0020] Optionally, a slide groove is provided in the drying kettle, and sliding wheels are arranged in an array on the bottom plate, and the sliding wheels slide inside the slide groove.

[0021] By adopting the above technical solution, the arrangement of the sliding wheel facilitates the bottom plate and the parts on the bottom plate to enter the interior of the drying kettle.

[0022] In summary, compared with the prior art, the present application includes at least one of the following beneficial technical effects:

[0023] 1. Place the aerogel vertically in the drying kettle. When the solution inside the aerogel is replaced with the gas, the water vapor of the solution moves directly upward to the top of the inner side of the drying kettle and is discharged, which can reduce the probability of water vapor entering other aerogels. Compared with the traditional technology of placing the aerogel horizontally and the water vapor of the next layer of aerogel enters the upper layer of aerogel, the drying efficiency of the aerogel is accelerated.

[0024] 2. When the frame supports the aerogel, the base and side wall rods are used to minimize the contact between external components and the aerogel, thereby increasing the contact area between the aerogel and carbon dioxide, which can further accelerate the drying of the aerogel.

[0025] 3. By setting a driving member to drive the frame on which the aerogel is placed to move back and forth for a short distance, the contact between carbon dioxide and the surface of the aerogel can be accelerated, thereby improving the drying efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the structure of an aerogel drying device of the present application;

[0027] Figure 2 This is a cross-sectional view of the drying kettle of this application;

[0028] Figure 3 This is a schematic diagram of the structure of the bottom plate and the sliding wheel of this application;

[0029] Figure 4 This is a schematic diagram of the structure of the dry placement part and the clamping part of this application;

[0030] Figure 5 This is a schematic diagram of the structure of the rack for this application;

[0031] Figure 6 This is a schematic diagram of the structure of the clamping member of this application;

[0032] Figure 7 This is a schematic diagram of the structure of the quantitative sliding member of this application;

[0033] Figure 8 This is a schematic diagram of the structure of the fastening member of this application;

[0034] Fig. 9 For this application Figure 4 The enlarged structural diagram of the middle A part;

[0035] Fig.10 For this application Figure 4 Schematic diagram of the enlarged structure of part B in the middle.

[0036] Explanation of the accompanying drawings: 1. Drying kettle; 11. Cabinet door; 12. Gas outflow pipe; 13. Carbon dioxide inflow pipe; 2. Bottom plate; 21. Sliding wheel; 3. Drying placement piece; 31. First bracket; 32. Placement rack; 33. Support seat; 34. Support column; 35. Rubber pad; 36. Telescopic push rod; 37. Elliptical limit ring; 38. Displacement shaft; 4. Quantitative sliding piece; 41. Slide plate; 42. Snap-in block; 43. Limiting groove; 44. Second return spring; 5. Clamping piece; 51. Fixed clamping plate; 52. Sliding shaft; 53. Top plate; 54. Movable clamping plate; 55. First return spring; 56. Leg; 6. Tightening piece; 61. Support block; 62. Support rod; 63. Tightening block; 64. Tightening spring; 7. Hanging ring. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the following will be combined with the embodiments of the present application. Figure 1-Figure 10 , the technical scheme of the embodiment of the present application is clearly and completely described. Obviously, the described embodiment is a part of the embodiment of the present application, not all of the embodiments. Based on the described embodiment of the present application, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of this application.

[0038] Reference Figure 1 , Figure 3 , Figure 4 and Figure 7 This embodiment provides an aerogel drying device, including a drying kettle 1, a bottom plate 2, a clamping member 5, a drying placement member 3, a quantitative sliding member 4 and a fastening member 6. The bottom plate 2 is slidably installed in the drying kettle 1, and the clamping member 5 is provided on the bottom plate 2. The drying placement member 3 is connected to the clamping member 5. The quantitative sliding member 4 drives the aerogel sheet on the drying placement member 3 to shake under the action of an external driving source. The fastening member 6 is used to abut and fix the bottom plate 2, so that the bottom plate 2 is fixed inside the drying kettle 1.

[0039] Reference Figure 1 The drying kettle 1 is provided with a cabinet door 11, a handle, a gas outflow pipe 12 and a carbon dioxide inflow pipe 13. The drying kettle 1 is provided with a cabinet door 11 for opening and closing, and a handle is installed on the cabinet door 11, which is convenient for opening and closing the cabinet door 11. The drying kettle 1 is provided with a gas outflow pipe 12 and a carbon dioxide inflow pipe 13. When carbon dioxide is introduced into the drying kettle 1, under specific environmental conditions, the carbon dioxide replaces the solution contained in the aerogel sheet, and the solution gas flows out from the gas outflow pipe 12 conveniently.

[0040] Reference Figure 3The bottom plate 2 is provided with a sliding wheel 21. The inner bottom of the drying kettle 1 is set in a horizontal state and two sliding grooves are opened horizontally. The two sliding grooves are symmetrical front and back. A plurality of sliding wheels 21 are arranged in an array on the bottom plate 2. The sliding wheels 21 drive the bottom plate 2 to enter the interior of the drying kettle 1 through the sliding grooves.

[0041] Reference Figure 2 , Figure 3 , Figure 5 and Fig.10 The drying placement member 3 includes a first bracket 31 , a placement frame 32 , a support seat 33 , a support column 34 , a rubber pad 35 , a telescopic push rod 36 , an elliptical limiting ring 37 and a displacement shaft 38 . The first bracket 31 is configured as a rectangular frame structure installed on the bottom plate 2, and two groups of quantitative sliding members 4 are arranged on the first bracket 31. The quantitative sliding members 4 are arranged horizontally and symmetrically front and back. The placement rack 32 is vertically arranged on the quantitative sliding member 4, and the placement rack 32 is configured as multiple groups and installed in an array. The placement rack 32 is also configured as a rectangular frame structure, and the support seat 33 is installed at the bottom of the placement rack 32. The support columns 34 are configured as multiple groups in a group of two, and the array is arranged on the placement rack 32, which can support both sides of the vertically placed plate. The design of the support column 34 can reduce the contact area between the support column 34 and the plate while ensuring that the plate is placed vertically, thereby accelerating the drying efficiency of the plate. The rubber pad 35 is configured as a plurality of arrays, and each rubber pad 35 is surrounded and fitted on the support column 34. The material of the rubber pad 35 is soft rubber with high elasticity and damping characteristics. When the aerogel plate is shaken by external force, the surface of the plate contacts the rubber pad 35. The rubber pad 35 can reduce the vibration amplitude of the plate through its own deformation, thereby preventing the plate from deforming.

[0042] There are two displacement shafts 38, both of which are arranged on the plates before and after the placement frame 32 and located in the middle of the plates. There are multiple elliptical limiting rings 37 and an array is installed on the first bracket 31. The displacement shafts 38 are located in the elliptical limiting rings 37.

[0043] The hanging ring 7 is installed on the first bracket 31, and the first bracket 31 is set as a rectangular frame. The hanging rings 7 are set at four corners of the top of the rectangular frame. The first bracket 31 can be conveniently lifted by external lifting parts, and the telescopic push rod 36 is set on the cabinet door 11.

[0044] Reference Figure 7 and Fig. 9The quantitative sliding member 4 includes a slide plate 41, a clamping block 42, a limiting groove 43, a support rod, a second return spring 44 and an L-shaped plate. A groove is transversely provided on the inner bottom of the first bracket 31, and the groove is set to be two symmetrical front and rear. The slide plate 41 is set to slide in the groove respectively. A clamping block 42 is installed on the middle part of the bottom of the slide plate 41. The clamping block 42 passes through the bottom of the first bracket 31 and a limiting groove 43 is set on the part passing through. The limiting groove 43 is used to limit the moving distance of the clamping block 42. Support rods are set at both ends of the slide plate 41. The support rods are slidably installed on the first bracket 31. Two L-shaped plates are set on the first bracket 31. One end of a single support rod is connected to the inner wall of the single L-shaped plate. The second return spring 44 is arranged around the support rod. When the slide plate 41 slides under the external driving force, the second return spring 44 can restore the slide plate 41 to its original position.

[0045] When in use, first place the aerogel sheet vertically on the placement rack 32, with the bottom of the aerogel sheet in contact with the support seat 33 and the two sides resting on the rubber pads 35 of the support column 34. When the slide plate 41 moves back and forth, it drives the placement rack 32 to move back and forth, and the aerogel sheet on the placement rack 32 slightly reciprocates on the support frame of the support seat 33 to accelerate the contact between the sheet and carbon dioxide.

[0046] Reference Figure 4 and Figure 6 The clamping member 5 includes a fixed clamping plate 51, a sliding shaft 52, a top plate 53, a movable clamping plate 54, a first return spring 55 and a leg 56. The fixed clamping plate 51 is provided in a plurality and arranged in an array on the bottom plate 2. The sliding shaft 52 is provided through the fixed clamping plate 51. The clamping block 42 can be clamped and fixed on the sliding shaft 52. A top plate 53 is installed on one side of each fixed clamping plate 51. The top plate 53 is fixedly installed on the sliding shaft 52. A movable clamping plate 54 is installed between the fixed clamping plate 51 and the top plate 53. The movable clamping plate 54 is slidably arranged on the sliding shaft 52. A first return spring 55 surrounding the sliding shaft 52 is installed between the movable clamping plate 54 and the top plate 53. The first return spring 55 drives the movable clamping plate 54 to approach or move away from the fixed clamping plate 51. Four legs 56 are provided at the bottom corners of the first bracket 31. The four legs 56 are clamped between the fixed clamping plate 51 and the movable clamping plate 54.

[0047] During use, first, the leg 56 is clamped between the fixed clamping plate 51 and the movable clamping plate 54, and then the first bracket 31 can be installed on the bottom plate 2. When the leg 56 is clamped between the fixed clamping plate 51 and the movable clamping plate 54, the first return spring 55 is compressed, tightly clamping the leg 56. Then, the clamping block 42 on the sliding plate 41 is clamped and fixed on the sliding shaft 52. When closing the cabinet door 11, when the piston rod of the telescopic push rod 36 extends, the piston rod contacts the sliding shaft 52 and drives the sliding shaft 52 to slide. Synchronously, the clamping block 42 slides in the limit groove 43, and the sliding plate 41 slides in the groove of the first bracket 31, driving the placement rack 32 to displace, thereby accelerating the contact between the aerogel sheet and carbon dioxide. Since both the fixed clamping plate 51 and the movable clamping plate 54 are slidably installed on the sliding shaft 52, at this time, the first bracket 31, the fixed clamping plate 51, and the movable clamping plate 54 are all fixed and immovable.

[0048] Referring to Figure 8 , the pressing member 6 includes a support block 61, a support rod 62, a pressing block 63, and a pressing spring 64. The support block 61 is L-shaped and fixedly installed on the inner wall of the cabinet door 11. The support rod 62 is slidably installed on the support block 61. One end of the support rod 62 is provided with a pressing block 63 for pressing against the bottom plate 2. The pressing spring 64 is disposed around the support rod 62, and both ends of the pressing spring 64 are connected to the pressing block 63 and the support block 61 respectively.

[0049] During use, after sliding the bottom plate 2 into the drying kettle 1 and closing the cabinet door 11, the pressing block 63 contacts one side wall of the bottom plate 2, the pressing spring 64 is compressed, and the pressing block 63 presses and fixes the bottom plate 2 to prevent the bottom plate 2 from shaking.

[0050] The implementation principle of an aerogel drying device according to an embodiment of the present application is as follows:

[0051] When using this device, first, place the aerogel sheet vertically on the placement rack 32, clamp the leg 56 at the bottom of the first bracket 31 between the fixed clamping plate 51 and the movable clamping plate 54. At this time, the first bracket 31 is fixedly installed on the bottom plate 2. Clamp the clamping block 42 at the bottom of the sliding plate 41 on the sliding shaft 52. Then, slide the bottom plate 2 into the drying kettle 1. When closing the cabinet door 11, the pressing block 63 contacts one side of the bottom plate 2 and fixes the bottom plate 2;

[0052] Then, carbon dioxide is allowed to enter the interior of the drying kettle 1 through the carbon dioxide inlet pipe 13. Under specific environmental conditions, carbon dioxide replaces the solution contained in the aerogel sheet, and the solution gas flows out from the gas outflow pipe 12 conveniently, and the telescopic push rod 36 is synchronously started. When the piston rod is extended, the piston rod contacts the sliding shaft 52 and drives the sliding shaft 52 to slide. The synchronous clamping block 42 slides in the limiting groove 43, and the slide plate 41 slides in the groove of the first bracket 31, driving the placement rack 32 to move, thereby accelerating the contact between the aerogel sheet and the carbon dioxide. Since the fixed clamping plate 51 and the movable clamping plate 54 are both slidably installed on the sliding shaft 52, at this time, the first bracket 31, the fixed clamping plate 51 and the movable clamping plate 54 are all fixed and motionless. After the aerogel sheet is dried, the cabinet door 11 can be opened to take out the sheet.

[0053] In addition, it should be noted that in the description of this application, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0054] The above is a preferred embodiment of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles described in the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. An aerogel drying device, comprising a drying kettle (1), a cabinet door (11), a gas outflow pipe (12) and a carbon dioxide inflow pipe (13), characterized in that: A bottom plate (2) is slidably mounted in the drying kettle (1), a first bracket (31) is mounted on the bottom plate (2), a quantitative sliding member (4) is mounted on the first bracket (31), a placement rack (32) is vertically mounted on the quantitative sliding member (4), a plurality of placement racks (32) are arranged in an array, a support seat (33) for supporting the bottom of the aerogel and a support column (34) for limiting the positions of the two sides of the aerogel are mounted on the placement racks (32), a plurality of support columns (34) are arranged in a vertical array, and a rubber pad (35) is arranged around the support column (34); The bottom plate (2) is provided with a clamping member (5) for clamping and limiting the first bracket (31), and the cabinet door (11) is provided with a telescopic push rod (36) for driving the quantitative sliding member (4) to move.

2. An aerogel drying device according to claim 1, characterized in that: The clamping member (5) comprises a fixed clamping plate (51) fixedly mounted on the bottom plate (2), two sliding shafts (52) being arranged on the fixed clamping plate (51), the two sliding shafts (52) being arranged transversely and symmetrical to each other front and back, a top plate (53) being fixedly mounted on the sliding shaft (52) and being located on one side of the fixed clamping plate (51), a movable clamping plate (54) being slidably arranged between the top plate (53) and the fixed clamping plate (51), a first return spring (55) being arranged on the top plate (53) for driving the movable clamping plate (54) to slide, and a support leg (56) being clamped between the movable clamping plate (54) and the fixed clamping plate (51) being arranged at the bottom of the first bracket (31).

3. An aerogel drying device according to claim 1, characterized in that: The quantitative sliding member (4) comprises a slide plate (41) fixedly mounted on the bottom of the placement frame (32); a clamping block (42) penetrating the bottom of the first bracket (31) is arranged on the slide plate (41); the clamping block (42) is clamped on the sliding shaft (52); a limiting groove (43) is provided on the first bracket (31); and the clamping block (42) slides in the limiting groove (43).

4. An aerogel drying device according to claim 3, characterized in that: A support rod is provided at the end of the slide plate (41), and a second return spring (44) is arranged around the support rod.

5. The aerogel drying device according to claim 1, characterized in that: A support block (61) is provided on the inner wall of the cabinet door (11), a support rod (62) is slidably mounted on the support block (61), a clamping block (63) abutting against the bottom plate (2) is mounted on one end of the support rod (62), and a clamping spring (64) is connected between the clamping block (63) and the support block (61).

6. The aerogel drying device according to claim 1, characterized in that: The first bracket (31) is symmetrically provided with an elliptical limiting ring (37), and both sides of the placement frame (32) are provided with a displacement shaft (38) located inside the elliptical limiting ring (37).

7. The aerogel drying device according to claim 1, characterized in that: The first bracket (31) is provided with a hanging ring (7), and four hanging rings (7) are provided.

8. The aerogel drying device according to claim 1, characterized in that: A slide groove is provided in the drying kettle (1), and sliding wheels (21) are arranged in an array on the bottom plate (2), and the sliding wheels (21) slide inside the slide groove.

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