Method for manufacturing glass ceramic by titanium-containing melting blast furnace slag

A technology for glass-ceramic and blast furnace slag, which is applied in the production field of glass-ceramic, can solve the problems of difficulty, the progress is not obvious, and TiO2 affects the crystallization effect of glass-ceramic, so as to reduce the production cost and reduce the energy consumption of the production process. Effect

Inactive Publication Date: 2012-07-25
达州市海蓝冶金设备制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

TiO2 in high-titanium blast furnace slag is an excellent nucleating agent for preparing glass-ceramics, but the content of TiO2 will affect the crystallization effect of glass-ceramics, so there are great differences in the heat treatment process of glass-ceramics and the design of glass components. Although many experts and professors have conducted years of research on the use of high-titanium blast furnace slag to prepare glass-ceramics, the progress is not obvious

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  • Method for manufacturing glass ceramic by titanium-containing melting blast furnace slag
  • Method for manufacturing glass ceramic by titanium-containing melting blast furnace slag

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Embodiment 1

[0032] The method for preparing glass-ceramics from titanium-containing molten blast furnace slag provided in this embodiment comprises the following steps:

[0033] (1) Send the 1400°C titanium-containing molten blast furnace slag flowing out of the blast furnace into the iron mixing furnace for heating and heat preservation, and mix it with silica sand, clay, albite and flux to form a high-temperature primary smelting solution;

[0034] (2) Input the high-temperature primary refining solution into a glass melting furnace, heat it to 1550° C., add clarifiers and colorants to refine it for 1 hour, and make it into a glass solution;

[0035] (3), the glass solution is entered into a calender to be pressed into a red-hot glass plate blank;

[0036] (4) The pressed glass plate blank is sent into the crystallization annealing kiln, heat-preserved and crystallized at 1000°C for 2 hours, and annealed and heat-preserved at 550°C for 1 hour to make glass-ceramics;

[0037] (5) Edge g...

Embodiment 2

[0042] The method for preparing glass-ceramics from titanium-containing molten blast furnace slag provided in this embodiment comprises the following steps:

[0043] (1) Send the 1560°C titanium-containing molten blast furnace slag flowing out of the blast furnace into the iron mixing furnace for heating and heat preservation, and mix it with silica sand, clay, albite and flux as a high-temperature primary smelting solution;

[0044] (2) Input the high-temperature primary refining solution into a glass melting furnace, heat it to 1600° C., add clarifiers and colorants for refining for 2 hours, and make it into a glass solution;

[0045] (3), the glass solution is entered into a calender to be pressed into a red-hot glass plate blank;

[0046] (4) The pressed glass plate blank is sent into the crystallization annealing kiln, heat-preserved and crystallized at 1100°C for 3 hours, and annealed and heat-preserved at 650°C for 2 hours to make glass ceramics;

[0047] (5) Edge grin...

Embodiment 3

[0052] The method for preparing glass-ceramics from titanium-containing molten blast furnace slag provided in this embodiment comprises the following steps:

[0053](1) Send the 1470°C titanium-containing molten blast furnace slag flowing out of the blast furnace into the iron mixing furnace for heating and heat preservation, and mix it with silica sand, clay, albite and flux as a high-temperature primary smelting solution;

[0054] (2) Input the high-temperature primary refining solution into a glass melting furnace, heat it to 1580° C., add clarifiers and colorants to refine for 1.5 hours, and make it into a glass solution;

[0055] (3), the glass solution is entered into a calender to be pressed into a red-hot glass plate blank;

[0056] (4) The pressed glass plate blank is sent into the crystallization annealing kiln, heat-preserved and crystallized at 1050°C for 2.5 hours, and annealed at 600°C for 1.5 hours to make glass-ceramics;

[0057] (5) Edge grinding, polishing a...

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Abstract

The invention discloses a method for manufacturing glass ceramic by titanium-containing melting blast furnace slag. The method comprises the following steps of: directly feeding titanium-containing high-temperature melting blast furnace slag flowed out of a blast furnace into a metal mixer, mixing the slag with other auxiliary raw materials and a fluxing agent, feeding high-temperature initial-refining solution into a glass melting furnace and also adding a clarifying agent and a coloring agent, refining in the glass melting furnace to form the smelted glass with uniform elements, uniform temperature and good flowability, feeding the smelted glass into a calendar to form red and hot glass blanks by pressing, and feeding the pressed glass blanks into a crystallization annealing kiln to carry out thermal treatment to manufacture the glass ceramic which takes diopside as a main crystalline phase. Compared with the prior art, the method for manufacturing the glass ceramic by the titanium-containing melting blast furnace slag has the advantages that the blast furnace slag with high titanium content is taken as the raw material for preparing the glass ceramic, thus the effectively utilization rate of the blast furnace slag with the high titanium content is improved, the discharge of the blast furnace slag with the high titanium content is further reduced, and the recovery of an industrial solid waste resource is also realized when the environment is improved.

Description

technical field [0001] The invention relates to the production field of glass-ceramics, in particular to a method for preparing glass-ceramics from molten blast furnace slag containing titanium. Background technique [0002] With the development of the iron and steel industry, the amount of blast furnace slag produced in the ironmaking process has gradually increased, and the treatment of blast furnace slag has become a major problem, especially high-titanium blast furnace slag. High-titanium blast furnace slag is the product of blast furnace smelting a high proportion of vanadium-titanium magnetite. For a long time, no better treatment method has been found. At present, it is mostly dumped or used in large quantities to pave roads and make gravel slag, which not only pollutes the environment , Destroying the ecology, but also wasting resources. Therefore, seeking the way of comprehensive utilization of high-titanium blast furnace slag has always been the goal explored and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C6/10C03B32/02
Inventor 李府廷
Owner 达州市海蓝冶金设备制造有限公司
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