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Inorganic composite fiber blanket and preparation method thereof

An inorganic composite and fiber blanket technology, applied in the direction of chemical instruments and methods, layered products, ceramic layered products, etc., can solve the problems of fiber cotton block gaps, module integrity deterioration, etc., to achieve good integrity and good mutual Effects and conditions that are easy to control

Pending Publication Date: 2021-03-09
山东鲁阳浩特高技术纤维有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the splicing process of this kind of module that is composited by physical cutting, there will be a problem that the fiber cotton block will be squeezed and deformed to produce gaps; at the same time, in the process of use, due to the shrinkage and pulverization of the fiber, the integrity of the module will also be affected. will get worse

Method used

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  • Inorganic composite fiber blanket and preparation method thereof
  • Inorganic composite fiber blanket and preparation method thereof
  • Inorganic composite fiber blanket and preparation method thereof

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preparation example Construction

[0041] The present invention also provides a preparation method of the inorganic composite fiber blanket described in the technical solution, comprising the following steps:

[0042] a) horizontally splicing the fiber cotton blanks on the high temperature side and the fiber cotton blanks on the back temperature side layer by layer to form multiple layers of cotton blanks;

[0043] b) Composite the multi-layer cotton base layers obtained in step a) to obtain an inorganic composite fiber blanket.

[0044] In the present invention, firstly, the fiber cotton blanks on the high temperature side and the fiber blank blanks on the back temperature side are spliced ​​in the horizontal direction layer by layer to form multiple layers of cotton blanks. In the present invention, the fiber blanks on the high temperature side and the fiber blanks on the back temperature side are the same as those in the above technical solution, and will not be repeated here.

[0045] In a preferred embodi...

Embodiment 1

[0059] A method for preparing an inorganic fiber composite blanket for an inorganic fiber composite module used in a high-temperature kiln at 1280°C. The overall thickness of the module is 300mm, and the bulk density is 180kg / m 3 . The fibers on the high temperature side are alumina fibers, and the fibers on the back temperature side are zirconium-containing ceramic fibers.

[0060] (1) Determination of the specifications and dimensions of the composite cotton base layer:

[0061] According to the service temperature of the inorganic composite fiber module prepared according to the requirements, the thickness of the inorganic fiber blanket to be prepared is determined to be 25mm, and the surface density is 2.4kg / m 3 According to the specifications of the above-mentioned inorganic composite fiber blanket, the optimal number of composite layers is 3, and the width of the inorganic fiber blank at the high temperature side: H1 = 80mm, H2 = 130mm, H3 = 80mm; according to the size ...

Embodiment 2

[0076] A method for preparing an inorganic fiber composite blanket for an inorganic fiber composite module that meets the requirements of a high-temperature kiln at 1210°C. The overall thickness of the module is 300mm, and the bulk density is 200kg / m 3 . Zirconium-containing ceramic fibers are used for the fibers on the high-temperature side, and high-alumina ceramic fibers are used for the fibers on the back-temperature side.

[0077] (1) Determination of the specifications and dimensions of the composite cotton base layer:

[0078]According to the service temperature of the inorganic composite fiber module prepared according to the requirements, the thickness of the inorganic fiber blanket to be prepared is determined to be 25mm, and the surface density is 3.2kg / m 2 According to the specifications of the above-mentioned inorganic composite fiber blanket, the optimal number of composite layers is determined to be 4, and the width of the inorganic fiber blank at the high temp...

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Abstract

The invention provides an inorganic composite fiber blanket. The inorganic composite fiber blanket is of an integrated structure formed by compounding a plurality of cotton blank layers; each cotton blank layer is formed by splicing a high-temperature side fiber cotton blank and a back-temperature side fiber cotton blank in a horizontal direction; and the included angle between the contact surfaceof the high-temperature side fiber cotton blank and the back-temperature side fiber cotton blank and a horizontal plane is greater than 0 degree and less than 90 degrees. Compared with the prior art,the inorganic composite fiber blanket provided by the invention adopts a specific structure and a specific connection relationship; an integrated structure is formed through interweaving of fibers; good overall interaction is realized; a product composite part is seamless; high integrality is realized; and the production cost can be remarkably reduced on the basis of meeting the requirements of use temperature, mechanical properties and the like.

Description

technical field [0001] The invention relates to the technical field of inorganic fiber materials, and more specifically relates to an inorganic composite fiber blanket and a preparation method thereof. Background technique [0002] Inorganic fiber materials are ideal furnace lining materials because of their low bulk density, low thermal conductivity, low heat capacity, good thermal shock resistance, and excellent temperature resistance. They are widely used in electric power, petrochemical, metallurgy, ceramics, and chemical industries. Industrial kilns for industry. [0003] Inorganic fibers of different temperature-resistant grades have different chemical components and impurity contents. Generally speaking, the higher the temperature-resistant grade, the higher the content of high-temperature-resistant chemical components, the lower the impurity content, and the higher the price. Take the zirconium-containing ceramic fiber blanket with a long-term use temperature of 120...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B5/14B32B5/06B32B9/00B32B9/04B32B18/00
CPCB32B5/06B32B5/142B32B5/26B32B2262/10B32B2262/105B32B2307/30B32B2307/50
Inventor 岳耀辉李梅鹿明王成龙
Owner 山东鲁阳浩特高技术纤维有限公司
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