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Centrifugal spinning preparation method for environment-friendly CMSP refractory fiber blanket

A technology of refractory fiber and centrifugal spinning, which is applied in the field of refractory fiber, can solve environmental pollution and other problems, and achieve the effects of environmental friendliness, elimination of occupational health hazards, and high degradation rate

Inactive Publication Date: 2015-04-29
SHANDONG LIYOUN NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In recent years, CMS refractory fibers with SiO2, MgO and CaO as the main components have attracted much attention due to their high refractoriness (continuous use temperature can reach above 1000°C), energy-saving and environmental protection features such as being soluble in human body fluids. Most of the alkali-free fibers on the market are currently Refractory fibers are mostly boron-containing formulas, which easily cause environmental pollution

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Using diopside 34.11Wt%, quartz sand 33.25Wt%, calcite 28.47Wt% and phosphate rock 4.17Wt% as raw materials, its chemical composition is as follows: SiO 2 : 63.64%, MgO: 4.77%, CaO: 28.36%, Al 2 O 3 : 1.02%, Fe 2 O 3 : 0.25%, P 2 O 5 :1.2%, mixed and crushed to 100 mesh, melted at 1500℃ in a resistance furnace, centrifuged and spun into a fiber cotton with a diameter of 1-10 microns and a length of 50-200 mm, using sodium tripolyphosphate binder, after collecting cotton , Acupuncture, heat treatment, cutting, rolling and other processes are processed into CMSP fiber blanket. The product has the advantages of high refractoriness, non-combustibility, low slag ball content, and good biodegradability. It is a widely used aluminum silicate fiber substitute material for various thermal equipment and pipelines.

Embodiment 2

[0031] Using diopside 34.11Wt%, quartz sand 33.25Wt%, calcite 28.47Wt% and phosphate rock 4.17Wt% as raw materials, its chemical composition is as follows: SiO 2 : 62.32%, MgO: 7.02%, CaO: 28.79%, Al 2 O 3 : 1.01%, Fe 2 O 3 : 0.3%, P 2 O 5 :1.02%, mixed and crushed to 100 mesh, melted in a resistance furnace at 1485℃, and centrifuged to form fiber cotton with a diameter of 1-10 microns and a length of 50-200 mm. The phenolic resin binder is used. Punching, heat treatment, cutting, rolling and other processes are processed into CMSP fiber blanket. The product has the advantages of high refractoriness, non-combustibility, low slag ball content, and good biodegradability. It is a widely used aluminum silicate fiber substitute material for various thermal equipment and pipelines.

Embodiment 3

[0033] Using diopside 43.26Wt%, quartz sand 27.05Wt%, and calcite 25.90Wt% as raw materials, its chemical composition is as follows: SiO 2 : 62.03%, MgO: 8.05%, CaO: 27.98%, Al 2 O 3 :1.99%, Fe 2 O 3 : 0.32%, mixed and crushed to 100 mesh, melted in a resistance furnace at 1400°C, centrifuged and spun into a fiber cotton with a diameter of 1-10 microns and a length of 50-200 mm. The silica sol adhesive is used to collect cotton and needles. Punching, heat treatment, cutting, rolling and other processes are processed into CMSP fiber blanket. The product has the advantages of high refractoriness, non-combustibility, low slag ball content, and good biodegradability. It is a widely used aluminum silicate fiber substitute material for various thermal equipment and pipelines.

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Abstract

The invention belongs to the field of refractory fibers and particularly relates to a centrifugal spinning preparation method for an environment-friendly CMSP refractory fiber blanket. An alkali-free boron-free CMSP refractory fiber is produced from natural diopside, quartz sand, calcite, flint clay and phosphate ore which are subjected to iron removal treatment as raw materials by virtue of a centrifugal spinning method and has the characteristics of high refractoriness, high degradation rate in the lung fluid, energy conservation and environment friendliness. The refractory fiber has the advantages of natural and easily available raw materials, low cost, environment friendliness during the manufacturing process and no air pollution phenomenon; the product has good solubility in body fluids and refractoriness not less than 1000 DEG C and is an ideal environment-friendly energy-saving alternative, meets the thermal-insulation requirements of most pipes and devices and has wide market prospects and the risk of occupational health of workers is eliminated.

Description

Technical field [0001] The invention belongs to the field of refractory fibers, and specifically relates to a centrifugal spinning manufacturing method of environmentally-friendly CMSP refractory fiber blankets. Background technique [0002] Refractory fiber can also be called ceramic fiber, which belongs to fibrous heat insulation refractory material. It has the characteristics of general fibers, such as softness, elasticity, and certain tensile strength. It can be further processed into various paper, thread, rope, belt, blankets and felts and other products; and it has the resistance that general fibers do not have. High temperature and corrosion resistance. As a refractory insulation material, it has been widely used in metallurgy, chemical industry, machinery, building materials, shipbuilding, aviation, aerospace and other industrial sectors. [0003] Refractory fiber is also a good infrared radiation material, with good thermal capacity and infrared heating effect. Using re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03B37/005C03B37/04
CPCY02P40/57C03B37/005C03B37/04
Inventor 李科李强刘伟孙佳王荣华杨国强张小娟张涛
Owner SHANDONG LIYOUN NEW MATERIAL
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