Aerogel material processing device

Abstract

The invention provides an aerogel material processing device, which relates to the technical field of aerogel processing, and comprises: a glue tank; a base is installed at the lower end of the glue tank, a sol is arranged in the glue tank, and the sol contains a solvent A; an evaporator, which is installed on the right side of a gas filling box; a modifying tank, the left end of which is connected to the right end of a second group of gas filling boxes; a drying tank, which is located on the right side of the modifying tank, and the aerogel enters the evaporator to perform azeotropic distillation with an azeotropic agent B. When evaporation is finished, the gel composite material passing through the evaporator enters the modifying tank, and the modifier in the modifying tank performs hydrophobic modification on hydroxyl groups in the gel composite material to obtain a hydrophobic gel composite material, thereby improving the water permeability resistance of the aerogel, and replacing the solvent through azeotropic distillation, so that the replacement is more efficient and thorough, and the problem of poor water permeability resistance of the aerogel is solved; when unloading, the gas rod is shortened, and the collecting wheel can be stably placed on the ground, thereby solving the problem of troublesome unloading.

Description

Technical Field

[0001] The invention relates to the technical field of aerogel processing, and in particular to an aerogel material processing device. Background Art

[0002] Aerogel is an ultra-lightweight, high-porosity mesoporous material in which the liquid in the pores of wet gel is replaced by gas without structural collapse. The supercritical method utilizes the characteristics of supercritical fluid such as no surface tension, high diffusivity, and high solubility to effectively prevent the collapse of the gel skeleton during the drying process, while achieving the separation of the solvent and the gel skeleton, and can produce aerogel products with excellent performance. It is the most commonly used standard method for preparing high-quality aerogel. However, the supercritical method involves the use of special equipment such as high-pressure vessels and hazardous chemicals at high temperature and high pressure. At the same time, the material needs to be transferred multiple times, resulting in low production efficiency, high risk, large equipment investment, high personnel quality requirements, and complex equipment maintenance. The atmospheric pressure drying method is currently the most active research direction for the preparation of aerogel materials. By replacing the solvent in the pores of the wet gel and reducing the surface energy of the gel pore structure, the damage to the gel skeleton caused by capillary forces during the drying process is eliminated, and the separation of the solvent and the gel skeleton is achieved. is the most likely to achieve Method for producing aerogel material The classic route of atmospheric pressure drying is to obtain silica aerogel after the silicon source undergoes sol-gel, aging, solvent replacement, surface modification, cleaning and drying. At present, there are few reports on processing equipment for continuous production of aerogel by atmospheric pressure drying. Summary of the invention

[0003] In view of this, the present invention provides an aerogel material processing device having a modification tank, which can enable the modifier in the modification tank to hydrophobically modify the hydroxyl groups in the gel composite material to obtain a hydrophobic gel composite material, thereby improving the water permeability resistance of the aerogel.

[0004] The present invention provides an aerogel material processing device, which specifically comprises: a gel tank;

[0005] A base is installed at the lower end of the glue tank, a sol is arranged in the glue tank, and the sol contains solvent A. Two groups of support plates are installed on the base, and roller one is connected to the left shaft of the support plate, and roller two is connected to the right shaft, and roller two can slide up and down on the right side of the support plate; a belt conveyor line, which is installed on the ground and located on the right side of the glue tank; a gas filling box, which is provided with four groups, and the first group is located on the right side of the belt conveyor line;

[0006] An evaporation tank, the evaporation tank is installed on the right side of the gas filling box, and the left side of the evaporation tank is sealed and connected to the right end of the gas filling box, the right end of the evaporation tank is connected to the left end of the second group of gas filling boxes, and the evaporation tank is provided with an azeotropic agent B; a modifying tank, the left end of the modifying tank is connected to the right end of the second group of gas filling boxes, and the modifying tank is filled with a modifier; a drying tank, the drying tank is located on the right side of the modifying tank, and the third group of gas filling boxes is connected between the drying tank and the modifying tank, and the drying tank is filled with a ceramic radiator, and the right end of the drying tank is connected to the fourth group of gas filling boxes; a felt, the felt is installed in the above structures.

[0007] Optionally, the gas tank comprises:

[0008] Window, there are four sets of windows, installed on the gas tank;

[0009] Rollers: There are three groups of rollers in the gas box, which are connected to the gas box and distributed in an isosceles triangle.

[0010] Inflating valve: There are two sets of inflating valves, which are installed at the upper end of the gas tank;

[0011] Ball valve, which is installed at the lower end of the gas tank;

[0012] Partition, the partition is installed in the gas box, just above the lower end roller.

[0013] Optionally, a steam outlet is installed at the upper end of the evaporation tank, and a condenser is installed on the steam outlet. The evaporation tank includes:

[0014] Liquid filling port: the liquid filling port is located at the lower right side of the evaporation tank;

[0015] A heating coil, which is installed at the lower end of the evaporator tank;

[0016] Manhole: The manhole is installed on the evaporation tank.

[0017] Optionally, a steam outlet is installed at the upper end of the drying tank, a condenser is installed on the steam outlet, two groups of rollers are connected to the inner shaft of the drying tank, and a manhole is installed on the drying tank.

[0018] Optionally, the drying tank comprises:

[0019] Hot nitrogen inlet, which is installed at the bottom of the drying tank;

[0020] The screen frame is installed in the drying tank and is located at the upper end of the ceramic radiator.

[0021] Optionally, the felt comprises:

[0022] The material discharge mechanism is installed on the ground and is located at the left end of the glue tank;

[0023] The material receiving mechanism is located on the right side of the drying tank.

[0024] Optionally, the discharge mechanism comprises:

[0025] A base frame, the base frame is placed on the ground, and two sets of sleeves are installed on the base frame, and two sets of jacks are installed on the base frame and located below the sleeves;

[0026] A support rod, the support rod moves in the sleeve, and the lower end of the support rod contacts the upper end of the jack;

[0027] A connecting seat is installed at the upper end of the support rod, and two sets of rollers are connected to the upper shaft of the connecting seat;

[0028] A central axis, which is located between two sets of rollers on the connecting seat;

[0029] Positioning plugs: There are two sets of positioning plugs, which are installed on the central axis;

[0030] The unloading wheel and the unloading wheel shaft are connected to the central shaft.

[0031] Optionally, the material receiving mechanism comprises:

[0032] A support frame, with two sets of legs installed at the rear end of the support frame;

[0033] The motor is mounted on the support frame, and a sprocket is mounted on the rotating shaft of the motor;

[0034] The receiving wheel has a shaft connected to the support frame, and a sprocket is installed on the rotating shaft of the receiving wheel, and two sets of sprockets are connected by a chain;

[0035] Adjusting legs: two groups of adjusting legs are arranged and are installed on the supporting frame.

[0036] Optionally, the adjusting leg comprises:

[0037] Vertical plates, two sets of vertical plates are installed on the bottom surface of the front end of the support frame;

[0038] A support arm, the upper end of the support arm is axially connected to the lower end of the vertical plate, and a support plate structure is installed at the lower end of the support arm;

[0039] Gas rod, the upper end of the gas rod is axially connected to the vertical plate, and the lower end of the gas rod is axially connected to the support arm.

[0040] Beneficial Effects

[0041] According to the aerogel processing device of each embodiment of the present invention, compared with the traditional processing device, an evaporation tank and a modification tank are added. When in use, the felt is first dipped into the sol through the glue tank, and the sol contains solvent A. The sol forms a gel composite material during the transmission through the belt conveyor line, and then enters the evaporation tank for azeotropic distillation with the entrainer B, wherein the boiling point of the entrainer B is higher than that of the solvent A, and the evaporation temperature is lower than the boiling point of the entrainer B and higher than the boiling point of the solvent A. The solvent replacement in the gel pores is completed by azeotropic distillation. At the end of evaporation, the solvent in the gel composite material changes from solvent A to solvent B. The gel composite material passing through the evaporation tank enters the modification tank. The modifier in the modification tank performs hydrophobic modification on the hydroxyl groups in the gel composite material to obtain a hydrophobic gel composite material, thereby improving the water permeability resistance of the aerogel. The solvent is replaced by azeotropic distillation, making the replacement more efficient and thorough. The entrainer B does not react with the modifier and does not consume the modifier, thereby improving the modification efficiency.

[0042] In addition, the present invention is also provided with a discharging mechanism and a collecting mechanism. The unprocessed felt is installed on the discharging wheel on the discharging mechanism. The felt is installed on the collecting wheel after passing through the evaporation tank, the modification tank, the drying tank and other mechanisms, and the collecting wheel is driven to rotate by the motor to ensure the transmission of the felt. The collecting structure is provided with adjusting legs, and the inclination height of the collecting mechanism can be adjusted by controlling the extension and retraction of the gas rod. When unloading, the gas rod is shortened, so that the collecting wheel can be stably placed on the ground, and unloading is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0044] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.

[0045] In the attached picture:

[0046] Figure 1 A schematic diagram showing the overall structure of an aerogel material processing device according to an embodiment of the present invention;

[0047] Figure 2 A schematic structural diagram of a glue tank of an aerogel material processing device according to an embodiment of the present invention is shown;

[0048] Figure 3 An aerogel material processing device according to an embodiment of the present invention is shown. Figure 1 A schematic diagram of the structure enlargement at the center A;

[0049] Figure 4 A schematic diagram of the top view of the interior of the gas filling box of the aerogel material processing device according to an embodiment of the present invention is shown;

[0050] Figure 5 A schematic diagram of the main structure of the interior of the gas filling box of the aerogel material processing device according to an embodiment of the present invention is shown;

[0051] Figure 6 A schematic diagram of the main structure of the interior of an evaporation tank of an aerogel material processing device according to an embodiment of the present invention is shown;

[0052] Figure 7 A schematic diagram of the top view of the interior of an evaporation tank of an aerogel material processing device according to an embodiment of the present invention is shown.

[0053] Figure 8 A schematic diagram of the main structure of the interior of a drying tank of an aerogel material processing device according to an embodiment of the present invention is shown;

[0054] Fig. 9 A schematic structural diagram of a discharge mechanism of an aerogel material processing device according to an embodiment of the present invention is shown;

[0055] Fig.10 An aerogel material processing device according to an embodiment of the present invention is shown. Fig. 9 A schematic diagram of the structure enlarged at B in the middle;

[0056] Fig.11 A structural schematic diagram of a material receiving mechanism of an aerogel material processing device according to an embodiment of the present invention is shown.

[0057] Fig.12 An aerogel material processing device according to an embodiment of the present invention is shown. Fig.11 Enlarged schematic diagram of the structure at C in the middle.

[0058] Reference numerals list

[0059] 1. Glue tank; 2. Belt conveyor line; 3. Gas box; 301. Window; 302. Roller; 303. Inflating valve; 304. Ball valve; 305. Partition; 4. Evaporation tank; 401. Liquid filling port; 402. Heating coil; 403. Manhole; 5. Modification tank; 6. Drying tank; 601. Hot nitrogen inlet; 602. Net frame; 7. Felt; 701. Discharging mechanism; 7011. Base frame; 7012. Support rod; 7013. Connecting seat; 7014. Center axis; 7015. Positioning plug; 7016. Discharging wheel; 702. Receiving mechanism; 7021. Support frame; 7022. Motor; 7023. Receiving wheel; 7024. Adjusting legs; 70241. Vertical plate; 70242. Support arm; 70243. Gas rod. DETAILED DESCRIPTION

[0060] In order to make the purpose, scheme and advantages of the technical solution of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described in conjunction with the drawings of the specific embodiments of the present invention. Unless otherwise specified, the terms used herein have the usual meanings in the art. The same reference numerals in the drawings represent the same components.

[0061] Example: Please refer to Figures 1 to 12 :

[0062] The present invention provides an aerogel material processing device, comprising: a gel tank 1;

[0063] A base is installed at the lower end of the glue tank 1. Sol is arranged in the glue tank 1. Sol contains solvent A. Two groups of support plates are installed on the base. The left side of the support plate is connected to roller 1, and the right side is connected to roller 2. Roller 2 can slide up and down on the right side of the support plate; belt conveyor line 2 is installed on the ground and is located on the right side of the glue tank 1; gas filling box 3 is provided with four groups, and the first group is located on the right side of the belt conveyor line 2;

[0064] Evaporation tank 4, the evaporation tank 4 is installed on the right side of the gas filling box 3, and the left side of the evaporation tank 4 is sealed and connected to the right end of the gas filling box 3, the right end of the evaporation tank 4 is connected to the left end of the second group of gas filling boxes 3, and the evaporation tank 4 is provided with an azeotropic agent B; modification tank 5, the left end of the modification tank 5 is connected to the right end of the second group of gas filling boxes 3, and the modification tank 5 is filled with a modifier; drying tank 6, a steam outlet is installed on the upper end of the drying tank 6, a condenser is installed on the steam outlet, two groups of rollers 302 are axially connected in the drying tank 6, and a manhole 403 is installed on the drying tank 6, the drying tank 6 is located on the right side of the modification tank 5, and the third group of gas filling boxes 3 are connected between the drying tank 6 and the modification tank 5, and the drying tank 6 is filled with a ceramic radiator, and the right end of the drying tank 6 is connected to the fourth group of gas filling boxes 3; felt 7, the felt 7 is installed in the above structures.

[0065] The gas box 3 includes a window 301, a roller 302, an inflation valve 303, a ball valve 304, and a partition 305; the window 301 is provided with four groups and installed on the gas box 3; the roller 302 is provided with three groups in the gas box 3, which is axially connected in the gas box 3 and distributed in an isosceles triangle; the inflation valve 303 is provided with two groups and installed at the upper end of the gas box 3; the ball valve 304 is installed at the lower end of the gas box 3; the partition 305 is installed in the gas box 3 and is located directly above the roller 302 at the lower end. Its function is: the gas box 3 can inflate and pressurize the aerogel, so that the spatial network structure of the aerogel is filled with gas, and the aerogel expands.

[0066] A steam outlet is installed at the upper end of the evaporation tank 4, and a condenser is installed on the steam outlet. The evaporation tank 4 includes: a liquid adding port 401, a heating coil 402 and a manhole 403; the liquid adding port 401 is opened at the lower right side of the evaporation tank 4; the heating coil 402 is installed at the lower end of the inside of the evaporation tank 4; the manhole 403 is installed on the evaporation tank 4, and its function is: the aerogel enters the evaporation tank 4 and performs azeotropic distillation with the entrainer B, wherein the boiling point of the entrainer B is higher than the solvent A, the evaporation temperature is lower than the boiling point of the entrainer B, and higher than the boiling point of the solvent A, and the solvent replacement in the pores of the aerogel is completed by azeotropic distillation. At the end of evaporation, the solvent in the aerogel composite material changes from solvent A to solvent B, and the solvent is replaced by azeotropic distillation, so that the replacement is more efficient and thorough.

[0067] The drying tank 6 includes a hot nitrogen inlet 601 and a mesh frame 602; the hot nitrogen inlet 601 is installed at the bottom of the drying tank 6; the mesh frame 602 is installed in the drying tank 6 and is located at the upper end of the ceramic radiator. Its function is: the hydrophobic gel composite material enters the drying tank 6, is dried by hot nitrogen (nitrogen at about 150°C heats the ceramic radiator, and the ceramic radiator is dried by thermal radiation), and the entrainer B is removed to obtain the aerogel composite material.

[0068] The felt 7 includes a material discharging mechanism 701 and a material collecting mechanism 702; the material discharging mechanism 701 is installed on the ground and is located at the left end of the glue tank 1; the material collecting mechanism 702 is located on the right side of the drying tank 6; the material discharging mechanism 701 includes: a base frame 7011, a support rod 7012, a connecting seat 7013, a central axis 7014, a positioning plug 7015 and a material discharging wheel 7016; the base frame 7011 is placed on the ground, and two sets of sleeves are installed on the base frame 7011, and two sets of jacks are installed on the base frame 7011, which are located below the sleeves; the support rod 7 012 moves in the sleeve, and the lower end contacts the upper end of the jack; the connecting seat 7013 is installed at the upper end of the support rod 7012, and the upper shaft of the connecting seat 7013 is connected to two sets of rollers; the central shaft 7014 is located between the two sets of rollers on the connecting seat 7013; two sets of positioning plugs 7015 are provided, which are installed on the central shaft 7014; the unloading wheel 7016 is connected to the central shaft 7014; the receiving mechanism 702 includes a support frame 7021, a motor 7022, a receiving wheel 7023 and an adjusting leg 7024, and the support frame Two sets of legs are installed at the rear end of 7021; the motor 7022 is installed on the support frame 7021, and a sprocket is installed on the rotating shaft of the motor 7022; the receiving wheel 7023 is axially connected to the support frame 7021, and a sprocket is installed on the rotating shaft of the receiving wheel 7023, and the two sets of sprockets are connected by a chain; there are two sets of adjustment legs 7024, which are installed on the support frame 7021, and the adjustment legs 7024 include: a vertical plate 70241, a support arm 70242 and a gas rod 70243; the vertical plate 70241 is provided with two sets of , installed on the bottom surface of the front end of the support frame 7021; the upper end of the support arm 70242 is axially connected to the lower end of the vertical plate 70241, and the lower end of the support arm 70242 is installed with a support plate structure; the upper end of the gas rod 70243 is axially connected to the vertical plate 70241, and the lower end is axially connected to the support arm 70242. Its function is: by controlling the extension and retraction of the gas rod 70243, the inclination height of the receiving mechanism 702 can be adjusted. When unloading, the gas rod 70243 is shortened, so that the receiving wheel 7023 can be placed stably on the ground, and unloading is convenient.

[0069] In addition, according to an embodiment of the present invention, a baffle structure can be installed on the belt conveyor line 2, and the position of the felt 7 can be corrected by the baffle structure to prevent the felt from running off the track during transportation, thereby causing the felt to get stuck in the device and affecting the processing rate.

[0070] Specific usage and function of this embodiment: In the present invention, the unprocessed felt 7 is installed on the discharge wheel 7016 on the discharge mechanism 701, and the felt 7 is installed on the receiving wheel 7023 after passing through the evaporation tank 4, the modification tank 5 and the drying tank 6. The receiving wheel 7023 is driven to rotate by the motor 7022 to ensure the transmission of the felt 7. When in use, the felt 7 first dips into the sol through the glue tank 1. The sol contains solvent A. A gel composite material is formed during the transmission of the belt conveyor line 2. Then, it is pressurized and inflated through the gas filling box 3 to fill the spatial network structure of the aerogel with gas. Then, the felt 7 enters the evaporation tank 4 and performs azeotropic distillation with the entrainer B. Through the azeotropic distillation, the felt 7 is heated and cooled. The solvent in the gel pores is replaced by distillation. At the end of evaporation, the solvent in the gel composite material changes from solvent A to solvent B. The gel composite material passing through the evaporator 4 enters the modification tank 5. The modifier in the modification tank 5 performs hydrophobic modification on the hydroxyl groups in the gel composite material to obtain a hydrophobic gel composite material, thereby improving the water permeability resistance of the aerogel. The solvent is replaced by azeotropic distillation to make the replacement more efficient and thorough. The azeotropic agent B does not react with the modifier and does not consume the modifier, thereby improving the modification efficiency. The hydrophobic gel composite material enters the drying tank 6 and is dried by hot nitrogen (nitrogen at about 150°C heats the ceramic radiator, and the ceramic radiator completes drying by thermal radiation). After the azeotropic agent B is removed, an aerogel composite material is obtained.

[0071] Finally, it should be noted that when describing the position of each component and the matching relationship between them, the present invention usually takes one / a pair of components as an example. However, those skilled in the art should understand that such position, matching relationship, etc. are also applicable to other components / other pairs of components.

[0072] The above description is merely an exemplary embodiment of the present invention and is not intended to limit the protection scope of the present invention. The protection scope of the present invention is determined by the appended claims.

Claims

1. An aerogel material processing device, characterized in that: Including glue tank; A base is installed at the lower end of the glue tank, a sol is arranged in the glue tank, and the sol contains solvent A. Two sets of support plates are installed on the base, and roller one is connected to the left shaft of the support plate, and roller two is connected to the right shaft, and roller two can slide up and down on the right side of the support plate; a belt conveyor line is installed on the ground and is located on the right side of the glue tank; Gas filling box, the gas filling box is provided with four groups, the first group is located on the right side of the belt conveyor line, the gas filling box includes: windows, the windows are provided with four groups, installed on the gas filling box; rollers, the rollers are provided with three groups in the gas filling box, the shafts are connected in the gas filling box, and are distributed in an isosceles triangle; inflation valves, the inflation valves are provided with two groups, and are installed at the upper end of the gas filling box; ball valves, the ball valves are installed at the lower end of the gas filling box; partitions, the partitions are installed in the gas filling box, and are located directly above the rollers at the lower end; Evaporation tank, the evaporation tank is installed on the right side of the gas filling box, and the left side of the evaporation tank is sealed and connected to the right end of the gas filling box, the right end of the evaporation tank is connected to the left end of the second group of gas filling boxes, and the evaporation tank is provided with an azeotropic agent B; modification tank, the left end of the modification tank is connected to the right end of the second group of gas filling boxes, and the modification tank is filled with a modifier; drying tank, the drying tank is located on the right side of the modification tank, and the third group of gas filling boxes is connected between the drying tank and the modification tank, and the drying tank is filled with a ceramic radiator, and the right end of the drying tank is connected to the fourth group of gas filling boxes; felt, the felt is installed in the above structures; Felt includes: The material discharge mechanism is installed on the ground and is located at the left end of the glue tank; The material receiving mechanism is located on the right side of the drying tank and includes: A support frame, with two sets of legs installed at the rear end of the support frame; The motor is mounted on the support frame, and a sprocket is mounted on the rotating shaft of the motor; The receiving wheel has a shaft connected to the support frame, and a sprocket is installed on the rotating shaft of the receiving wheel, and two sets of sprockets are connected by a chain; Adjustable legs, there are two groups of adjustable legs, installed on the support frame, the adjustable legs include: Vertical plates, two sets of vertical plates are installed on the bottom surface of the front end of the support frame; A support arm, the upper end of the support arm is axially connected to the lower end of the vertical plate, and a support plate structure is installed at the lower end of the support arm; Gas rod, the upper end of the gas rod is axially connected to the vertical plate, and the lower end of the gas rod is axially connected to the support arm.

2. An aerogel material processing device as claimed in claim 1, characterized in that: The upper end of the evaporation tank is provided with a steam outlet, and a condenser is provided on the steam outlet. The evaporation tank comprises: Liquid filling port: the liquid filling port is located at the lower right side of the evaporation tank; A heating coil, which is installed at the lower end of the evaporator tank; Manhole: The manhole is installed on the evaporation tank.

3. An aerogel material processing device as claimed in claim 1, characterized in that: The upper end of the drying tank is provided with a steam outlet, a condenser is provided on the steam outlet, two groups of rollers are connected to the inner shaft of the drying tank, and a manhole is provided on the drying tank.

4. An aerogel material processing device as claimed in claim 1, characterized in that: The drying tank comprises: Hot nitrogen inlet, which is installed at the bottom of the drying tank; The screen frame is installed in the drying tank and is located at the upper end of the ceramic radiator.

5. An aerogel material processing device as claimed in claim 1, characterized in that: The unloading mechanism comprises: A base frame, the base frame is placed on the ground, and two sets of sleeves are installed on the base frame, and two sets of jacks are installed on the base frame and located below the sleeves; A support rod, the support rod moves in the sleeve, and the lower end of the support rod contacts the upper end of the jack; A connecting seat is installed at the upper end of the support rod, and two sets of rollers are connected to the upper shaft of the connecting seat; A central axis, which is located between two sets of rollers on the connecting seat; Positioning plugs: There are two sets of positioning plugs, which are installed on the central axis; The unloading wheel and the unloading wheel shaft are connected to the central shaft.

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