A microwave explosion-proof drying recovery system for preparing airgel materials

A recovery system and aerogel technology, applied in the direction of silica, inorganic chemistry, non-metallic elements, etc., can solve the problem of inability to make aerogels with integrity and integrity, reduced specific surface area and porosity, and large gel shrinkage To achieve the effect of accelerating volatilization and recovery, fast drying speed and high energy conversion efficiency

Active Publication Date: 2017-02-01
纳诺科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Atmospheric pressure drying is to dry the wet gel slowly under the condition of normal pressure and heating. This method has long drying cycle, large gel shrinkage, reduced specific surface area and porosity, and can not produce intact gel. Disadvantages such as airgel

Method used

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  • A microwave explosion-proof drying recovery system for preparing airgel materials
  • A microwave explosion-proof drying recovery system for preparing airgel materials
  • A microwave explosion-proof drying recovery system for preparing airgel materials

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Embodiment Construction

[0023] The present invention will be further described below in conjunction with specific examples, but the protection scope of the present invention is not limited thereto.

[0024] Such as Figure 1-Figure 5 As shown, the microwave explosion-proof drying recovery system used to prepare airgel materials in the present invention includes a microwave heating device 1, a condenser 2 and a heat exchanger 3, and the microwave heating device 1 includes a microwave device box 11, a sealed container 12 and a microwave heating device 1. The control panel 13, the airtight container 12 and the microwave control panel 13 are located in the microwave equipment box body 11, the microwave equipment box body 11 is connected with a protective gas input pipe 14, and the airtight container 12 is located in the protective gas input pipe 14 and the microwave control panel 13 In between, the atmosphere with low oxygen content can be formed in the space of the microwave heating equipment 1 after th...

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Abstract

The invention relates to a microwave explosion-proof recovery system for aerogel drying, comprising microwave heating equipment, a condenser and a heat exchanger. The air inlet pipe is connected to the bottom of the sealed container; the exhaust pipe is connected to the upper part of the condenser, the air inlet pipe is connected to one side of the heat exchanger, and the other side of the heat exchanger is connected to an explosion-proof circulating fan, which is connected to the condenser. The lower part is connected; the air inlet pipe is connected with the second protective gas input pipe, and the second protective gas input pipe is parallel to the first protective gas input pipe; the first oxygen content detector is installed on the microwave equipment box, and the oxygen content detector is installed on the exhaust pipe The second and the safety valve, the oxygen content detector II is located between the safety valve and the condenser. The invention has the characteristics of low cost, high efficiency, high safety and the like when drying the SiO2 aerogel material, and opens up a new way for the low cost and rapid drying of the SiO2 aerogel.

Description

technical field [0001] The invention relates to the field of drying equipment, in particular to a microwave explosion-proof recovery system for airgel drying. Background technique [0002] SiO 2 Airgel is a lightweight nano-amorphous porous material with a continuous random network structure, and has the characteristics of large specific surface area, high porosity, low density, low refractive index and thermal conductivity, etc. It has a wide range of applications in many fields. application prospects. [0003] There are no complicated technical problems in the preparation of the gel, and the key to the research lies in the drying of the gel. Current SiO 2 Airgel drying methods mainly include the following types: supercritical drying, subcritical drying, atmospheric drying, and freeze drying. [0004] At present, SiO is prepared at home and abroad 2 Most aerogels use supercritical drying technology. In a supercritical state, there is no interface between gas and liquid...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B33/158C01B33/16
Inventor 姜法兴沈志春熊风姚献东赵科仁
Owner 纳诺科技有限公司
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