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Method for producing vacuum heat insulation board from expanded perlite

A technology of expanded perlite and vacuum insulation panels, applied in heat exchange equipment, pipeline protection through heat insulation, heat preservation, etc., can solve the problems of high material cost, high energy consumption, and non-environmental protection, and achieve low price and low thermal conductivity , The effect of reducing the cost of raw materials

Active Publication Date: 2012-10-10
QINGDAO CREEK NEW ENVIRONMENTAL PROTECTION MATERIAL
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0003] The present invention aims to provide a method for producing vacuum insulation panels by using expanded perlite, so as to solve the problems of high material cost, high energy consumption and non-environmental protection existing in the prior art

Method used

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  • Method for producing vacuum heat insulation board from expanded perlite
  • Method for producing vacuum heat insulation board from expanded perlite
  • Method for producing vacuum heat insulation board from expanded perlite

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Embodiment Construction

[0028] The invention discloses a method for producing a vacuum insulation panel by using expanded perlite. The core material is put into a high-barrier gas film bag and sealed after vacuuming. It is characterized in that the composition and parts by weight of the core material are: expanded pearl Rock 60-80, auxiliary material 10-20, fiber 8-12, vacuum active stabilizer 4-6, getter 1-2.

[0029] The manufacturing process includes the following steps:

[0030] (1) Ingredients: Put various materials of the formula into the mixer for full mixing;

[0031] (2) Drying: Dry the evenly stirred mixture, and control the drying temperature at 100-120°C. During the drying process, measure the moisture content of the mixture every 8 minutes until the moisture content of the mixture reaches 0.5 % below, stop drying;

[0032] (3) Non-woven fabric bag making: make non-woven fabric into three-side sealed bags, or make three-side sealed bags with gusseted corners;

[0033] (4) Filling of co...

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Abstract

The invention relates to a method for producing a vacuum heat insulation board from expanded perlite. A manufacture process comprises the following steps of: material proportioning: the expanded perlite, auxiliary materials, fibers, vacuum active stabilizers and gas absorption agents are fed into a mixing machine to be fully mixed; drying: the uniformly stirred mixed materials are dried; core material forming: the dried materials and the gas absorption agents are fed into a mold, and the mold is put into a pressing machine for pressing formation; and wrapping: a core board formed through pressing is taken out from the mold, a layer of non-woven fabrics is wrapped on the periphery of the core board, and a vacuum heat insulation core board for building is obtained; and the core board is placed into a high-resistance gas membrane bag for vacuum pumping, the vacuum degree is 0.02 to 20Pa, and then, the opening sealing is carried out. The method has the advantages that the sound absorption performance of the expanded perlite is good, the self heat conductivity factor is low, a heat insulation layer with high performance is formed among perlite particles through the mixing of the auxiliary materials, the fibers and the perlite, and the heat insulation performance and the intensity are further improved. Inorganic materials are adopted and are nonflammable.

Description

technical field [0001] The invention relates to a method for producing a vacuum heat insulation board from expanded perlite, which is used for producing the vacuum heat insulation board, and the vacuum heat insulation board is used as a building or industrial heat preservation material. Background technique [0002] Existing vacuum insulation panels are mainly composed of internal heat-insulating core material and outer high-barrier film, in which the heat-insulation core material is generally made of conventional thermal insulation materials (such as foamed plastics), glass fiber or / and airgel, etc. Its disadvantages are high material cost, high energy consumption and not environmental protection. Contents of the invention [0003] The present invention aims to provide a method for producing vacuum insulation panels by using expanded perlite, so as to solve the problems of high material cost, high energy consumption and environmental protection in the prior art. [0004]...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L59/04F16L59/065
Inventor 翟传伟李壮贤
Owner QINGDAO CREEK NEW ENVIRONMENTAL PROTECTION MATERIAL
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