Microwave integrated machine for production of aerogel material and method for continuous production of aerogel material

An airgel and all-in-one technology, applied in airgel preparation, colloid chemistry, colloid chemistry, etc., can solve problems such as long production cycle, decline in thermal insulation performance, collapse of internal skeleton structure, etc., to save energy and ensure production safety , the effect of reducing the oxygen content

Active Publication Date: 2019-03-29
江西宏柏新材料股份有限公司
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Problems solved by technology

[0004] The purpose of the present invention is to solve the technical problems of long production period and collapse of internal skeleton structure in the existing method for preparing airgel, which leads to the decline of thermal insulation performance, and provides a microwave integrated machine for producing airgel materials and continuous production of airgel. gel material method

Method used

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  • Microwave integrated machine for production of aerogel material and method for continuous production of aerogel material
  • Microwave integrated machine for production of aerogel material and method for continuous production of aerogel material
  • Microwave integrated machine for production of aerogel material and method for continuous production of aerogel material

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specific Embodiment approach 1

[0037] Embodiment 1: In this embodiment, the microwave integrated machine for producing airgel materials includes an unwinder 1, a shielding cover 6-1, a roller 3, a dipping pool 4, an airgel precursor liquid storage tank 5, and a high-pressure nozzle 6. Front transmission device 7, PTFE conveyor belt 8, microwave generator 9, microwave cavity 10, observation and maintenance window 11, wind collecting hood 12, dehumidification pipe 13, solvent replacement device 14, hydrophobic modification device 15, replacement liquid Raw material storage tank 16, replacement residual liquid storage tank 17, modified liquid raw material storage tank 18, modified residual liquid collection storage tank 19, rear transmission device 20, winder 21, tubular condenser 22, condensate receiver Tank 23, microwave equipment bracket 24, raw material inlet 25, product outlet 26, front inert gas protection device 27, first gas valve 27-1, rear inert gas protection device 28, second gas valve 28-1, magneti...

specific Embodiment approach 2

[0038] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the front inert gas protection device 27, the rear inert gas protection device 28 and the oxygen content online monitoring device 32 are interlocked. When the microwave cavity 10, the oxygen When the content exceeds 6vol.%, the front inert gas protection device 27 and the rear inert gas protection device 28 will automatically inject inert gas to reduce the oxygen content. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0039] Specific embodiment three: adopt the method for the continuous production of airgel material of the microwave all-in-one machine that produces airgel material according to the following steps:

[0040] 1. Introduce the nano-absorbing factor into the airgel precursor: mix and stir 500kg of the airgel precursor and 0.05-0.5kg of the nano-absorbing factor for 5-10min under the condition that the speed of the high-speed disperser is 100-1000r / min After being uniformly dispersed, the airgel precursor solution containing the nano-absorbing factor is obtained, and the airgel precursor solution containing the nano-absorbing factor is loaded into the airgel precursor solution storage tank 5 and heated to 20-60° C.;

[0041] Under the condition that the speed of the high-speed disperser is 100-1000r / min, mix and stir 500kg of replacement liquid and 0.5-5kg of flame retardant for 5-10 minutes to obtain the treated replacement liquid, and put the treated replacement liquid into the ...

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Abstract

A microwave integrated machine for production of an aerogel material and a method for continuous production of the aerogel material are disclosed. The invention belongs to the technical field of aerogel material production and especially relates to a microwave integrated machine and an efficient production method for continuous production of the aerogel material by using the microwave technique. The invention aims to solve the technical problem that existing aerogel preparation methods have long production period and the internal skeleton structure is collapsed and the thermal insulation performance is reduced. The method of the invention comprises the following steps: preparing a wet aerogel material, letting the wet aerogel material enter a solvent replacement device and then enter a hydrophobic modification device, and drying to obtain the aerogel material; letting the evaporated solvent gas enter a shell and tube condenser, condensing for gas-liquid separation, recycling the solvent, returning an inert gas to the equipment for recycling so as to complete a production period. According to the method, each solvent replacement only takes more than ten minutes, and each hydrophobicmodification only takes more than ten minutes. Thereby, production efficiency is greatly improved.

Description

technical field [0001] The invention belongs to the technical field of airgel material production, in particular to a microwave integrated machine and a high-efficiency production method for continuously producing airgel material using microwave technology. Background technique [0002] Airgel material is known as a magical material that changes the world. It has a unique three-dimensional nanopore structure, and its pore size is smaller than the mean free path of air molecules, so that it has ultra-low density, excellent sound insulation and ultra-high thermal resistance. It is the material with the largest thermal resistance among all thermal insulation materials at present, so it has broad application prospects in petrochemical, sound insulation materials, building insulation, white goods, rail transit and industrial production. [0003] At present, the process of producing airgel thermal insulation materials is mainly to compound the prepared airgel precursor liquid with...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J13/00B01J19/12
CPCB01J13/0091B01J19/126
Inventor 纪冠丞张磊李季李洪宝
Owner 江西宏柏新材料股份有限公司
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