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A method for preparing continuous basalt fiber with blast furnace slag

A technology of basalt fiber and blast furnace slag, which is applied in glass manufacturing equipment, manufacturing tools, etc., can solve the problem of low overall utilization rate of blast furnace slag, and achieve the effects of high-efficiency utilization, improved melting conditions, and increased strength

Active Publication Date: 2021-12-17
SHOUGANG SHUICHENG IRON & STEEL GRP SAIDE CONSTR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the overall utilization rate of blast furnace slag in my country is low, less than 50% of the total amount of blast furnace slag, and the accumulation of a large amount of blast furnace slag has caused great pressure on the ecological environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Example 1: A method for preparing continuous basalt fiber with blast furnace slag

[0026] 1. The raw material composition is shown in Table 2

[0027] Table 2 Raw material composition

[0028] Element weight / kg blast furnace slag 33 coal gangue 29 fly ash 45 Quartz sand 19 Titanium Tailings 16 Ceria 2.4 Zirconia 2.9

[0029] 2. Preparation of continuous basalt fiber

[0030] (1) Raw material pretreatment: mix blast furnace slag, coal gangue, fly ash, quartz sand, zirconia, cerium oxide and titanium beneficiation tailings and ball mill with a ball mill, and make the ball mill completely pass through a 100-mesh sieve to obtain a mixture material;

[0031](2) Uniform melting of raw materials: Pour the mixed material obtained in step (1) into a melting furnace for melting, so that the mixed material forms a uniform melt; wherein, the melting temperature is 1450° C., and the melting time is 5 hours;

[0032] (3) B...

Embodiment 2

[0034] 1. The raw material composition is shown in Table 3

[0035] Table 3 raw material composition

[0036] Element weight / kg blast furnace slag 40 coal gangue 35 fly ash 42 Quartz sand 23 Titanium Tailings 17 Ceria 2.6 Zirconia 3.1

[0037] 2. Preparation of continuous basalt fiber

[0038] (1) Raw material pretreatment: mix blast furnace slag, coal gangue, fly ash, quartz sand, zirconia, cerium oxide and titanium beneficiation tailings, and use a ball mill for ball milling, and make the ball abrasive completely pass through a 100-mesh sieve to obtain a mixture material;

[0039] (2) Uniform melting of raw materials: Pour the mixed material obtained in step (1) into a melting furnace for melting, so that the mixed material forms a uniform melt; wherein, the melting temperature is 1500° C., and the melting time is 4 hours;

[0040] (3) Bushing drawing: When the melting time in step (2) reaches the predetermined time...

Embodiment 3

[0042] 1. See Table 4 for raw material composition

[0043] Table 4 raw material composition

[0044] Element weight / kg blast furnace slag 33 coal gangue 29 fly ash 45 Quartz sand 19 Titanium Tailings 16 Ceria 2.4 Zirconia 2.9

[0045] 2. Preparation of continuous basalt fiber

[0046] (1) Raw material pretreatment: mix blast furnace slag, coal gangue, fly ash, quartz sand, zirconia, cerium oxide and titanium beneficiation tailings, and use a ball mill for ball milling, and make the ball abrasive completely pass through a 100-mesh sieve to obtain a mixture material;

[0047] (2) Uniform melting of raw materials: Pour the mixed material obtained in step (1) into a melting furnace for melting, so that the mixed material forms a uniform melt; wherein, the melting temperature is 1600 ° C, and the melting time is 3 hours;

[0048] (3) Bushing drawing: When the melting time in step (2) reaches the predetermined time, lower ...

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Abstract

The invention discloses a method for preparing continuous basalt fiber with blast furnace slag, which uses industrial solid waste blast furnace slag, fly ash and coal gangue as main raw materials, and then adds quartz sand, zirconia, cerium oxide and titanium selection tail ore, the content of each component is properly proportioned, and then the components are uniformly mixed by ball milling, and then the mixed material is melted and reacted at a suitable high temperature, and finally drawn through a platinum-rhodium alloy bushing plate to obtain continuous basalt fiber. The present invention properly increases CaO, TiO 2 and ZrO 2 The content of the basalt fiber to form SiO 2 ‑Al 2 o 3 ‑CaO‑MgO‑TiO 2 -ZrO 2 The system reduces the high-temperature viscosity of the melt, significantly increases the strength, thermal stability and corrosion resistance of the glass; and achieves the purpose of comprehensive utilization of industrial solid waste.

Description

technical field [0001] The invention relates to the field of inorganic fiber preparation, in particular to a method for preparing continuous basalt fiber with blast furnace slag. Background technique [0002] Continuous Basalt Fiber (Continuous Basalt Fiber, referred to as CBF or BF) is an environmentally friendly inorganic fiber material with excellent properties such as light weight, high strength, high temperature resistance, corrosion resistance, oxidation resistance, radiation protection, heat insulation and sound insulation, etc. It is widely used in aerospace, automobile and ship It has a wide range of uses in fields such as civil engineering transportation, energy environment, chemical fire protection, national defense and military industry. Especially in the field of construction, as a new reinforcing material for cement, it partially replaces steel bars and has good compatibility with cement and concrete, which can effectively enhance the strength and crack resista...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C13/06C03C6/10C03B37/022
CPCC03B37/022C03C1/002C03C13/06
Inventor 高昭宗蔡菲张大忠喻荣玲邢双梅齐晶
Owner SHOUGANG SHUICHENG IRON & STEEL GRP SAIDE CONSTR CO LTD
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