A kind of inorganic fiber insulation board and its preparation method and application

An inorganic fiber and thermal insulation board technology, applied in the field of thermal insulation materials, can solve the problems of high performance production cost, inability to continuous production, rapid strength decay, etc., achieve high hydrophobicity, improve density uniformity, and reduce fiber diameter.

Active Publication Date: 2022-02-18
唐山华纤科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the main insulation materials for marine cabins on the market are mainly rock wool materials, and because the traditional operating environment generally has a large temperature difference, it is prone to problems such as moisture return, strong water absorption, and rapid strength decay during long-term use. There are problems such as high preparation cost, non-continuous production, and high energy consumption
Therefore, how to solve the performance deficiencies of the existing marine thermal insulation materials and the problems of high production cost and non-continuous production have become the key issues that R&D personnel need to solve urgently.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] This embodiment provides an inorganic fiber insulation board, including the following raw material components in parts by mass:

[0036] 15 parts of metallurgical slag, 50 parts of coal gangue, 30 parts of washed Longyan soil, 45 parts of alumina, 30 parts of silicon oxide, 10 parts of talcum powder and 4 parts of fluorite.

[0037] The preparation method of above-mentioned inorganic fiber insulation board comprises the steps:

[0038] Step 1. Weigh each component according to the designed ratio, mix the weighed components evenly, heat to 1460°C and melt to obtain a liquid slurry;

[0039] Step 2, centrifuging the liquid slurry under the condition of 600r / min to spin into superfine fibers with an average diameter of 4.8 μm and collecting them to obtain fibers;

[0040] Step 3: Compact and shape the fiber into a flat plate with a pressure of 1.2 MPa, and then perform acupuncture with a density of 180 needles / m 2 , get fiber mat;

[0041] Step 4, the aluminum sol and s...

Embodiment 2

[0045] This embodiment provides an inorganic fiber insulation board, including the following raw material components in parts by mass:

[0046]20 parts of metallurgical slag, 35 parts of coal gangue, 10 parts of washed Longyan soil, 60 parts of alumina, 50 parts of silicon oxide, 8 parts of talcum powder and 5 parts of fluorite.

[0047] The preparation method of above-mentioned inorganic fiber insulation board comprises the steps:

[0048] Step 1. Weigh each component according to the designed ratio, mix the weighed components evenly, heat to 1430°C and melt to obtain a liquid slurry;

[0049] Step 2, centrifuge spinning the liquid slurry under the condition of 640r / min, spin it into superfine fibers with an average diameter of 4.0 μm and collect them to obtain fibers;

[0050] Step 3: Compact and shape the fiber into a flat plate with a pressure of 1.0 MPa, and then perform acupuncture with a density of 150 needles / m 2 , get fiber mat;

[0051] Step 4, the aluminum sol an...

Embodiment 3

[0055] This embodiment provides an inorganic fiber insulation board, including the following raw material components in parts by mass:

[0056] 30 parts of metallurgical slag, 20 parts of coal gangue, 20 parts of washed Longyan soil, 30 parts of alumina, 40 parts of silicon oxide, 5 parts of talcum powder and 3 parts of fluorite.

[0057] The preparation method of above-mentioned inorganic fiber insulation board comprises the steps:

[0058] Step 1. Weigh each component according to the designed ratio, mix the weighed components evenly, heat to 1445°C and melt to obtain a liquid slurry;

[0059] Step 2, centrifuge spinning the liquid slurry under the condition of 680r / min, spin it into superfine fibers with an average diameter of 3.5 μm and collect them to obtain fibers;

[0060] Step 3: Compact and shape the fiber into a flat plate with a pressure of 0.8 MPa, and then perform acupuncture with a density of 120 needles / m 2 , get fiber mat;

[0061] Step 4, the aluminum sol a...

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Abstract

The invention relates to the technical field of thermal insulation materials, and specifically discloses an inorganic fiber thermal insulation board as well as its preparation method and application. The inorganic fiber insulation board includes the following components: 15-30 parts of metallurgical slag, 20-50 parts of coal gangue, 10-30 parts of elutriated Longyan soil, 30-60 parts of alumina, 30-50 parts of silicon oxide, and talcum powder 5‑10 parts and Fluorite 3‑5 parts. The inorganic fiber insulation board provided by the present invention makes full use of solid waste and realizes the resource utilization of solid waste. At an average temperature of 500°C, the thermal conductivity is 0.03-0.04w / (m.k) (average temperature 500°C), hydrophobic The rate is 99.3% to 99.5%, and the volume water absorption rate is 1.2% to 1.8%. It can be widely used in the insulation of marine cabins, and can achieve good thermal insulation, heat insulation, and moisture-proof effects. The raw materials are cheap and easy to obtain, and have a wide range of applications. Application prospect.

Description

technical field [0001] The invention relates to the technical field of thermal insulation materials, in particular to an inorganic fiber thermal insulation board and its preparation method and application. Background technique [0002] Due to its high humidity and high salinity environment, marine thermal insulation materials have higher requirements on the moisture-proof and anti-halogen performance of thermal insulation materials than general building thermal insulation materials. At present, the main insulation materials for marine cabins on the market are mainly rock wool materials, and because the traditional operating environment generally has a large temperature difference, it is prone to problems such as moisture return, strong water absorption, and rapid strength decay during long-term use. There are problems such as high preparation cost, non-continuous production and high energy consumption. Therefore, how to solve the performance deficiencies of the existing mar...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/26C03C13/06C03B37/04D04H1/4209D04H1/488D04H3/002D04H3/105D04H3/12
CPCC04B28/26C03C13/06C03B37/04D04H1/488D04H1/4209D04H3/105D04H3/12D04H3/002C04B2201/32C04B2201/50
Inventor 马立宏王宝祥吴庆宇胡佳星佟计庆王禄单正萍
Owner 唐山华纤科技有限公司
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