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Inorganic fiber with solid waste as raw material and production method thereof

A solid waste and inorganic fiber technology, applied in the direction of manufacturing tools, glass manufacturing equipment, etc., to achieve the effect of low slag ball content and excellent water resistance

Inactive Publication Date: 2014-01-29
SHANGHAI HUAMING HI TECH GRP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The above-mentioned difficulties in the process of preparing fibers from fly ash and other wastes and the above-mentioned melt properties: viscosity, surface tension, crystallization performance, rheology and hardening speed can be attributed to the above-mentioned melt properties and melt composition. Influence relationship is not yet determined

Method used

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  • Inorganic fiber with solid waste as raw material and production method thereof
  • Inorganic fiber with solid waste as raw material and production method thereof
  • Inorganic fiber with solid waste as raw material and production method thereof

Examples

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Embodiment 1～ Embodiment 13

[0043] See Table 1 and Table 2 for the composition and granularity of the fly ash raw materials and flux used in Examples 1 to 13, and see Table 3 for the raw materials used in each example and their technical parameters such as their proportioning and melting.

[0044] Fiber-forming technical parameters of Examples 1-7: four-roller centrifuge, the linear speed of the lowest roll is 27.3m / s, and the linear speed of the highest roll is 5.5 times of the lowest roll.

[0045] Fiber-forming technical parameters of Examples 7-13: four-roller centrifuge, the line speed of the lowest roll is 33m / s, and the line speed of the highest roll is 4.6 times of the line speed of the lowest roll.

[0046] The slag content, average fiber diameter and acid resistance of the fiber products obtained in Examples 1 to 13 are shown in Table 3. The mass percentage of each component of the residue after the fiber products were burned at 550°C for 30 minutes and the acidity coefficient of the fiber produ...

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Abstract

The invention discloses an inorganic fiber with solid waste powder as a raw material and a production method thereof. After igniting for 30 minutes at 550 DEG C, the resulting residue comprises the following components by mass percent: 36 to 48% of SiO2, 8 to 21% of Al2O3, 22 to 32% of CaO, 2 to 12% of Fe2O3, 4 to 14% of MgO, 0.1 to 2% of Na2O, 0.1 to 2% of K2O and 0.5 to 3% of TiO. According to the production method, coal ash can be utilized to the maximum; the produced inorganic fiber product is outstanding in water resistance, acid resistance and durability, has a low shot content and is applicable to an external thermal insulation product of a building, a sound absorbing and insulating material, a heat insulation plate, a heat insulation material of an industrial pipeline, etc. The preparation method of the inorganic fiber overcomes the problems due to the melting of the raw material and the control of the molding viscosity and brings a feasible scheme for industrialized application of preparation of the inorganic fiber with coal ash as a raw material.

Description

technical field [0001] The invention relates to an inorganic fiber with fly ash as raw material and its industrial manufacturing method. Background technique [0002] Fly ash generally refers to the solid residue after coal combustion. After the coal is burned in the furnace, the unburned residue has two forms: slag and fly ash (Fly Ash): the solid particle residue discharged with the flue gas is called fly ash, and the particle size discharged from the bottom of the furnace is larger or in the form of fly ash. The lumpy solid residue is called cinder or bottom cinder. In addition to the spontaneous combustion of raw coal and coal gangue, the main sources of fly ash are coal-fired furnaces in thermal power plants that use coal as energy, coal-fired furnaces in large-scale industrial enterprises and urban heating, and chemical coal-to-gas furnaces that use coal as fuel. Municipal waste incinerators in China also produce solid residues similar to fly ash. The chemical compo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03B37/00C03C13/00
CPCC03C1/002C03C3/062C03C3/087C03C13/00
Inventor 吴秋芳李鹏何迪欢王汉斌徐康辉朱鸣航
Owner SHANGHAI HUAMING HI TECH GRP
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