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High titanium blast furnace slag microcrystalline stone and its preparation method

A high-titanium blast furnace slag and microcrystalline technology, which is applied in the field of stone manufacturing technology, can solve the problems of poor flatness, soil gray appearance, and rough surface of microcrystalline stone, and achieve the effect of reducing glass viscosity, pure color, and smooth surface

Active Publication Date: 2020-04-24
PANZHIHUA HUANYE METALLURGICAL SLAG DEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is: the existing microcrystalline stone prepared by using high-titanium blast furnace slag has poor flatness, rough surface, earthy gray appearance, poor color and other problems.

Method used

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  • High titanium blast furnace slag microcrystalline stone and its preparation method

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preparation example Construction

[0033] The invention provides a method for preparing high-titanium blast furnace slag microcrystalline stone, which comprises the following steps:

[0034] a. Combine 40-60 parts of high-titanium blast furnace slag with 24-37 parts of stabilizer, 5-8 parts of flux, 5-8 parts of crystal nucleus agent, 2-4 parts of crystallization accelerator, 1-3 parts of color regulator, 1-2 parts of reducing agent are mixed, melted, homogenized and clarified at 1480-1530° C. to obtain a mixed melt; the composition of the high-titanium blast furnace slag is: by weight percentage, calcium oxide is 20-27%, Titanium oxide is 19-22%, silicon dioxide is 20-27%, aluminum oxide is 14-15.8%, magnesium oxide is 3-9%, ferric oxide is 2.7-5.1%, and the rest is impurities ;

[0035] b. The glass melt forms a plate

[0036] When the temperature of the mixed melt in step a drops to 1250-1300°C, introduce a calender for rolling to form a plate;

[0037] c. Plate nucleation and crystallization treatment

...

Embodiment 1

[0047] Example 1 Preparation of high-titanium blast furnace slag microcrystalline stone by technical scheme of the present invention

[0048] Preparation of high-titanium blast furnace slag microcrystalline stone, the steps are as follows:

[0049]a, 40 parts by weight of high-titanium blast furnace water-quenched slag, 37 parts by weight of quartz sand, 8 parts by weight of sodium carbonate, 5.5 parts by weight of sphalerite, 2.5 parts by weight of sodium sulfate, 1 part by weight of zinc oxide, 4 parts by weight of ammonium dihydrogen phosphate, Mix 2 parts by weight of carbon powder evenly, and obtain a mixed melt at a temperature of 1530°C after 4-6 hours of melting, 2-3 hours of homogenization and 1-2 hours of clarification;

[0050] In this step, the upper limit of the crystallization temperature of the glass melt is 1170°C, T1=1380°C, T2=975°C, ΔT=T1-T2=1380°C-975°C=405°C.

[0051] b. The glass melt forms a plate

[0052] When the temperature of the mixed melt in step...

Embodiment 2

[0058] Example 2 Preparation of high-titanium blast furnace slag microcrystalline stone by technical scheme of the present invention

[0059] Preparation of high-titanium blast furnace slag microcrystalline stone, the steps are as follows:

[0060] a. Introduce 60 parts of high-titanium blast furnace molten slag into the glass melting furnace; then add 24 parts of quartz sand, 5 parts of sodium carbonate, 1 part of sphalerite, 4 parts of sodium sulfate, 2 parts of zinc oxide, and 3 parts of dihydrogen phosphate Mix 2 parts of ammonium and carbon powder evenly, and obtain a mixed melt at a temperature of 1480°C after 4-6 hours of melting, 2-3 hours of homogenization and 1-2 hours of clarification;

[0061] In this step, the upper limit of the crystallization temperature of the glass melt is 1175°C, T1=1375°C, T2=973°C, ΔT=T1-T2=1375°C-973°C=402°C.

[0062] b. The glass melt forms a plate

[0063] When the temperature of the mixed melt in step a drops to 1260°C, it is introduc...

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Abstract

The invention belongs to the field of a stone material manufacturing process and particularly relates to a high-titanium blast furnace slag microcrystalline stone material and a preparation method thereof. Aiming at the problems that an existing microcrystalline stone material prepared from blast furnace slag has poor flatness, rough surface, poor appearance and the like, the invention provides the high-titanium blast furnace slag microcrystalline stone material and the preparation method thereof. The preparation method comprises the following steps: mixing 40-60 parts of high-titanium blast furnace slag, 24-37 parts of a stabilizer, 5-8 parts of a fluxing agent, 5-8 parts of a nucleating agent, 2-4 parts of a crystallization accelerant, 1-3 parts of a color modifier and 1-2 parts of a reducing agent; smelting at 1480 DEG C-1530 DEG C, homogenizing and clarifying to obtain a mixed melt; and calendering to form a sheet material, and nucleating and crystallizing to obtain the microcrystalline stone material. According to the method provided by the invention, the glass viscosity can be reduced; stable molding of glass is accelerated and the chemical stability of the glass is improved; the prepared microcrystalline stone material has a smooth and flat surface, pure color and luster and good quality. The preparation method provided by the invention is simple to operate and the requirements on equipment are not high, so that the preparation method is convenient to popularize and apply.

Description

technical field [0001] The invention belongs to the field of stone manufacturing technology, and in particular relates to a high-titanium blast furnace slag microcrystalline stone and a preparation method thereof. Background technique [0002] Microcrystalline stone is a unique new type of inorganic non-metallic material. Microcrystalline stone has many excellent properties, such as high mechanical strength, good chemical stability and thermal stability, wear resistance, corrosion resistance, etc. And get widely used. [0003] Blast furnace slag is a kind of waste slag discharged from the blast furnace when smelting pig iron. It belongs to silicate material. main ingreadient. [0004] However, for the waste slag after blast furnace smelting of vanadium-titanium magnetite, that is, high-titanium blast furnace slag, because it contains a large amount of titanium oxide, the titanium content is as high as more than 20%. As we all know, titanium oxide is a commonly used cryst...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C10/04C03C10/06C03C6/04C03C6/10C03C3/097C03B32/02
CPCC03B32/02C03C1/002C03C3/097C03C10/0036C03C10/0063
Inventor 杨志远黄幼榕李要辉
Owner PANZHIHUA HUANYE METALLURGICAL SLAG DEV CO LTD
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