CN210346302U - Rotary sintering furnace for preparing high-temperature-resistant silicon-based aerogel - Google Patents
Rotary sintering furnace for preparing high-temperature-resistant silicon-based aerogel Download PDFInfo
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- CN210346302U CN210346302U CN201920309574.5U CN201920309574U CN210346302U CN 210346302 U CN210346302 U CN 210346302U CN 201920309574 U CN201920309574 U CN 201920309574U CN 210346302 U CN210346302 U CN 210346302U
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Abstract
The utility model provides a preparation high temperature resistant silicon base rotary sintering stove for aerogel mainly includes base, supporting platform, furnace body and drive arrangement, one side of furnace body sets up the furnace gate, is equipped with furnace in the furnace body, set up the spiral heating tube in the furnace, spiral heating tube center forms the heating chamber, the intracavity sets up the inner bag, the inner wall of inner bag evenly sets up the lifting blade, the both ends of inner bag set up inlet pipe and discharging pipe respectively, the inlet pipe is located one side of furnace gate, inlet pipe and discharging pipe stretch out the both sides of furnace body and put up on the support, the support is fixed on supporting platform, the tip of support still sets up the riding wheel, and this sintering stove structural design science, thermal insulation performance is good, and the powder is heated evenly, and the feeding and the ejection of compact of being convenient for can effectively prevent that the powder from.
Description
Technical Field
The utility model relates to a high temperature resistant silicon base aerogel production field especially relates to a rotary sintering stove for preparation high temperature resistant silicon base aerogel.
Background
Aerogels, also known as xerogels. When most of the solvent is removed from the gel, the liquid content in the gel is much less than the solid content, or the space network structure of the gel is filled with gas, and the appearance is solid, namely xerogel, also called aerogel. Aerogel is a solid form, the least dense solid in the world, with a density of 3 kilograms per cubic meter.
Aerogels can be constructed from a variety of materials, such as silica, titania, carbon, graphene, cellulose, and the like, with silica aerogels being the earliest (1930), the most mature and promising class of aerogels in the current state of technology, however, silica aerogels have been developed at 800 foThe nano-pore channel above C begins to collapse at the temperature higher than 1000 deg.CoAnd the C occasion basically loses the heat preservation effect, so the heat preservation and heat insulation material cannot be used in the field of high temperature resistance and heat preservation. The silicon-based ceramic material has the high temperature resistance obviously higher than that of silicon oxide material, for example, the aluminum silicate can be 1200oThe temperature resistance of the mullite (aluminosilicate compound) and the zirconium silicate can reach 1500 and 1700 respectively after long-term use in the environment CoC, however, no research report about silicon-based high-temperature resistant aerogel materials is found internationally; therefore, the research on the silicon-based high-temperature resistant aerogel is urgent.
The traditional silicon oxide material has poor high temperature resistance, and in order to realize a high temperature resistant aerogel structure in a silicon-based material system, the silicon-based framework needs to be doped and modified to improve the temperature resistance; the microstructure and the performance of the ceramic aerogel are controlled by regulating and controlling a sol-gel process, optimizing the strength of a micropore structure/gel framework and accurately regulating and controlling the nano-scale crystallization and solid-phase reaction behaviors of ceramic particles at high temperature; therefore, the process for preparing the high-temperature-resistant silicon-based aerogel comprises the following steps: the high-temperature-resistant silicon-based aerogel is prepared by adopting a sol-gel-normal-pressure drying-high-temperature sintering method, taking low-cost water glass as a silicon source and metal aluminum, zirconium and titanium inorganic salts as dopants, preparing composite silicon-based gel through a sol-gel process, performing solvent replacement, drying, grinding, crushing and other processes to obtain composite aerogel powder, and performing high-temperature sintering to finally obtain the high-temperature-resistant silicon-based aerogel with a unique nanopore structure.
The high-temperature sintering needs to be carried out by using a sintering furnace, the rotary sintering furnace is generally used for sintering powder, and the rotary sintering furnace on the market at present has the following problems: firstly, the furnace body is two boxes that involutes, and the gap of two upper and lower boxes is great, and thermal insulation performance is relatively poor, and the energy consumption is higher, and the second, the feed and the ejection of compact of rotary sintering stove need take out the inner bag from the box, and the operation is more loaded down with trivial details, and the third, at the in-process of adjustment atmospheric pressure, powder in the inner bag can be along with the air current discharge, causes the extravagant or environmental pollution of raw materials.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to overcome prior art not enough, provide a structural design science, thermal insulation performance is good, and the powder is heated evenly, and the feeding and the ejection of compact of being convenient for can effectively prevent a preparation high temperature resistant silicon base rotary sintering stove for aerogel that the powder from leaking.
For realizing the utility model provides the following technical scheme:
the utility model provides a preparation high temperature resistant silicon base rotary sintering stove for aerogel mainly includes base, supporting platform, furnace body and drive arrangement, one side of furnace body sets up the furnace gate, is equipped with furnace in the furnace body, set up the spiral heating tube in the furnace, spiral heating tube center forms the heating chamber, the intracavity sets up the inner bag, the inner wall of inner bag evenly sets up the lifting blade, the both ends of inner bag set up inlet pipe and discharging pipe respectively, the inlet pipe is located one side of furnace gate, inlet pipe and discharging pipe stretch out the both sides of furnace body and put up on the support, the support is fixed on supporting platform, the tip of support still sets up the riding wheel.
Further, the supporting platform is rotatably connected with the base through a hydraulic lifting rod.
Further, the furnace gate is two semicircle fixed point revolving doors.
Furthermore, the driving device mainly comprises a driving motor and supporting wheels, the supporting wheels are respectively arranged on the outer walls of the feeding pipe and the discharging pipe, and the supporting wheels are embedded in the supporting wheels; the outer wall of the feeding pipe is also provided with a driven wheel, and the driven wheel is meshed with a gear at the output end of the driving motor.
Further, the intake pipe is still connected to the tip of inlet pipe, set up sealed the pad between intake pipe and the inlet pipe to by the clamp joint, set up gas flow control valve in the intake pipe.
Furthermore, the tip of discharging pipe still connects the outlet duct, set up sealed the pad between outlet duct and the discharging pipe to by the clamp joint, set up filter screen piece and air outlet valve in the outlet duct.
Furthermore, the material raising plate inclines towards the material discharging pipe.
The utility model discloses an useful part:
firstly, the method comprises the following steps: a heating cavity is formed in the center of the spiral heating pipe in the hearth, the spiral heating pipe completely surrounds the inner container, the inner container is uniformly heated in the heating cavity, and powder is uniformly distributed in the inner container under the action of the lifting plate in the rotating process of the inner container, so that sintering is facilitated;
secondly, the method comprises the following steps: a furnace door is arranged on one side of the furnace body, so that the heat loss of the furnace body is small;
thirdly, the method comprises the following steps: the supporting platform is connected with the base in a sliding way through a hydraulic lifting rod and can be inclined properly so as to facilitate feeding and discharging;
fourthly: the filter net is arranged in the air outlet pipe to prevent the air in the powder from flowing out when the air pressure is adjusted.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a front view of the furnace door.
In the figure: 1 is a base, 2 is a supporting platform, 3 is a furnace body, 3.1 is a furnace door, 3.2 is a hearth, 3.3 is a spiral heating pipe, 3.4 is a heating cavity, 3.5 is an inner container, 3.6 is a lifting plate, 3.7 is a feeding pipe, 3.8 is a discharging pipe, 4 is a bracket, 4.1 is a riding wheel, 5 is a hydraulic lifting rod, 6 is a driving motor, 7 is a supporting wheel, 8 is a driven wheel, 9 is an air inlet pipe, 10 is an air outlet pipe, 11 is a sealing gasket, 12 is a clamp, 13 is a gas flow control valve, 14 is a filter screen and 15 is an air outlet valve.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
A rotary sintering furnace for preparing high-temperature-resistant silicon-based aerogel mainly comprises a base 1, a supporting platform 2, a furnace body 3 and a driving device, wherein a furnace door 3.1 is arranged on one side of the furnace body 3, a furnace chamber 3.2 is arranged in the furnace body 3, a spiral heating pipe 3.3 is arranged in the furnace chamber 3.2, a heating chamber 3.4 is formed in the center of the spiral heating pipe 3.3, an inner container 3.5 is arranged in the heating chamber 3.4, a lifting plate 3.6 is uniformly arranged on the inner wall of the inner container 3.5, a feeding pipe 3.7 and a discharging pipe 3.8 are respectively arranged at the two ends of the inner container 3.5, the feeding pipe 3.7 is positioned on one side of the furnace door 3.1, the feeding pipe 3.7 and the discharging pipe 3.8 extend out of the two sides of the furnace body 3 and are erected on a support 4, the support 4 is fixed on the supporting platform 2, a supporting wheel 4.1 is also arranged at the end of the support 4, the supporting platform 2 is rotatably, the driving device mainly comprises a driving motor 6 and a supporting wheel 7, wherein the supporting wheel 7 is respectively arranged on the outer walls of the feeding pipe 3.7 and the discharging pipe 3.8, and the supporting wheel 4.1 is embedded into the supporting wheel 7; the inlet pipe 3.7 outer wall still sets up from driving wheel 8, from the gear engagement of driving wheel 8 with the 6 output of driving motor, intake pipe 9 is still connected to the tip of inlet pipe 3.7, set up sealed 11 between intake pipe 9 and the inlet pipe 3.7 to by clamp 12 joint, set up gas flow control valve 13 in the intake pipe 9, outlet duct 10 is still connected to the tip of discharging pipe 3.8, set up sealed 11 between outlet duct 10 and the discharging pipe 3.8 to by clamp 12 joint, set up filter screen piece 14 and air outlet valve 15 in the outlet duct 10, the lifting blade 3.6 inclines to discharging pipe 3.8 direction.
The working principle of the sintering furnace is as follows: opening a furnace door 3.1, placing an inner container 3.5 into a heating cavity 3.4, embedding a riding wheel 4.1 into a supporting wheel 7, closing the furnace door 3.1 after the inner container 3.5 is installed, connecting an air outlet pipe 10 with a discharge pipe 3.8, tilting a supporting platform 2 under the action of a hydraulic lifting rod 5, starting feeding at the end part of the feed pipe 3.7, connecting an air inlet pipe 9 with the end part of the feed pipe 3.7 after the feeding is finished, starting heating the spiral heating pipe 3.3, simultaneously driving a gear at the output end of a motor 6 to drive a driven wheel 8 to rotate, so that the inner container 3.5 starts to rotate, controlling the air pressure in the inner container by a gas flow control valve 13 and an air outlet valve 15, preventing powder from overflowing along with air flow by a filter screen 14, after the sintering is finished, detaching the clamp 12 after the inner container is cooled, detaching the air outlet pipe 10 from the discharge pipe 3.8, tilting the supporting platform 2 again, and discharging the sintered powder from.
The present invention is not limited to the above-mentioned embodiments, and various changes can be made by those skilled in the art, and any changes equivalent or similar to the present invention are also intended to be covered by the scope of the present invention.
Claims (7)
1. The utility model provides a preparation high temperature resistant silicon base rotary sintering stove for aerogel mainly includes base, supporting platform, furnace body and drive arrangement, its characterized in that: one side of furnace body sets up the furnace gate, is equipped with furnace in the furnace body, set up the spiral heating tube in the furnace, spiral heating tube center forms the heating chamber, the heating intracavity sets up the inner bag, the inner wall of inner bag evenly sets up the lifting blade, the both ends of inner bag set up inlet pipe and discharging pipe respectively, the inlet pipe is located one side of furnace gate, inlet pipe and discharging pipe stretch out the both sides of furnace body and put up on the support, the support is fixed on supporting platform, the tip of support still sets up the riding wheel.
2. The rotary sintering furnace for preparing the high temperature resistant silicon-based aerogel according to claim 1, wherein: the supporting platform is rotatably connected with the base through a hydraulic lifting rod.
3. The rotary sintering furnace for preparing the high temperature resistant silicon-based aerogel according to claim 1, wherein: the furnace gate is two semicircle fixed point revolving doors.
4. The rotary sintering furnace for preparing the high temperature resistant silicon-based aerogel according to claim 1, wherein: the driving device mainly comprises a driving motor and supporting wheels, the supporting wheels are respectively arranged on the outer walls of the feeding pipe and the discharging pipe, and the supporting wheels are embedded in the supporting wheels; the outer wall of the feeding pipe is also provided with a driven wheel, and the driven wheel is meshed with a gear at the output end of the driving motor.
5. The rotary sintering furnace for preparing the high temperature resistant silicon-based aerogel according to claim 1, wherein: the tip of inlet pipe still connects the intake pipe, set up sealed the pad between intake pipe and the inlet pipe to by the clamp joint, set up gas flow control valve in the intake pipe.
6. The rotary sintering furnace for preparing the high temperature resistant silicon-based aerogel according to claim 1, wherein: the end part of the discharge pipe is also connected with an air outlet pipe, a sealing gasket is arranged between the air outlet pipe and the discharge pipe and is clamped by a clamp, and a filter screen and an air outlet valve are arranged in the air outlet pipe.
7. The rotary sintering furnace for preparing the high temperature resistant silicon-based aerogel according to claim 1, wherein: the material raising plate inclines towards the material discharging pipe.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920309574.5U CN210346302U (en) | 2019-03-12 | 2019-03-12 | Rotary sintering furnace for preparing high-temperature-resistant silicon-based aerogel |
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| CN201920309574.5U CN210346302U (en) | 2019-03-12 | 2019-03-12 | Rotary sintering furnace for preparing high-temperature-resistant silicon-based aerogel |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113532115A (en) * | 2021-06-15 | 2021-10-22 | 西安交通大学 | Even ceramic aerogel high temperature atmospheric pressure sintering device in warm area |
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2019
- 2019-03-12 CN CN201920309574.5U patent/CN210346302U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113532115A (en) * | 2021-06-15 | 2021-10-22 | 西安交通大学 | Even ceramic aerogel high temperature atmospheric pressure sintering device in warm area |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A rotary sintering furnace for preparing high temperature silica based aerogels Effective date of registration: 20210728 Granted publication date: 20200417 Pledgee: Wuxi Branch of China CITIC Bank Co., Ltd Pledgor: JIANGSU MIBAFUL NANO MATERIAL Co.,Ltd. Registration number: Y2021320010280 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20220523 Granted publication date: 20200417 Pledgee: Wuxi Branch of China CITIC Bank Co.,Ltd. Pledgor: JIANGSU MIBAFUL NANO MATERIAL CO.,LTD. Registration number: Y2021320010280 |