Sintering process method and device for producing microcrystalline glass by using blast furnace slag

A technology of blast furnace slag and glass ceramics, which is applied in the field of metallurgy and inorganic non-metallic materials, can solve the problems of melting energy consumption, etc., and achieve the effects of reducing excessive consumption, improving economic profits, and good application treatment

Active Publication Date: 2014-02-05
UNIV OF SCI & TECH BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The patents disclosed above show that the raw materials of glass-ceramics are mostly raw ore, self-batching, and blast furnace titanium slag, but the technol

Method used

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  • Sintering process method and device for producing microcrystalline glass by using blast furnace slag
  • Sintering process method and device for producing microcrystalline glass by using blast furnace slag
  • Sintering process method and device for producing microcrystalline glass by using blast furnace slag

Examples

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Effect test

Embodiment 1

[0055] The blast furnace slag provided by the present embodiment prepares glass-ceramic comprising the following steps:

[0056] (1) The 1500°C molten slag flowing out of the blast furnace is transferred to the composition quenching and tempering stirring pool through the iron mixing furnace for heating and heat preservation;

[0057] (2) Add the component modifying agent into the component tempering stirring tank, blow inert gas and coal powder from the top and bottom to mix the components evenly, and keep warm at 1450-1500°C for 1 hour;

[0058] (3) The slag enters the slag ladle through the slag port at the bottom of the composition quenching and tempering mixing tank to adjust the flow of the slag, and enters the water quenching pool from the slag port below the slag ladle for water quenching treatment to form glass particles;

[0059] (4) The obtained glass particles are finely ground and sieved, and the glass particles on the sieve are sent to the dryer for drying treatm...

Embodiment 2

[0066] The blast furnace slag provided by the present embodiment prepares glass-ceramic comprising the following steps:

[0067] (1) The 1500°C molten slag flowing out of the blast furnace is transferred to the composition quenching and tempering stirring pool through the iron mixing furnace for heating and heat preservation;

[0068] (2) Add component modifiers, nucleating agents, etc. into the component conditioning and tempering stirring tank, blow inert gas and coal powder from the top and bottom to mix the components evenly, and keep warm at 1450-1500°C for 1 hour;

[0069] (3) The slag enters the slag ladle through the slag port at the bottom of the composition quenching and tempering mixing tank to adjust the flow of the slag, and enters the water quenching pool from the slag port below the slag ladle for water quenching treatment to form glass particles;

[0070] (4) The obtained glass particles are finely ground and sieved, and the glass particles that meet the requir...

Embodiment 3

[0077] The blast furnace slag provided by the present embodiment prepares glass-ceramic comprising the following steps:

[0078] (1) The 1500°C molten slag flowing out of the blast furnace is transferred to the composition quenching and tempering stirring pool through the iron mixing furnace for heating and heat preservation;

[0079] (2) Add component modifiers, nucleating agents, etc. into the component conditioning and tempering stirring tank, blow inert gas and coal powder from the top and bottom to mix the components evenly, and keep warm at 1450-1500°C for 1 hour;

[0080] (3) The slag enters the slag ladle through the slag port at the bottom of the composition quenching and tempering mixing tank to adjust the flow of the slag, and enters the water quenching pool from the slag port below the slag ladle for water quenching treatment to form glass particles;

[0081] (4) The obtained glass particles are finely ground and sieved, and the glass particles that meet the requir...

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Abstract

The invention discloses a sintering process method and device for producing microcrystalline glass by using blast furnace slag, belonging to the field of metallurgical and inorganic non-metallic materials. The process method comprises the following main steps that: (1) blast furnace slag is transferred to a composition hardening, tempering and stirring tank, a modifier, a coloring agent and a nucleating agent are added into the tank, the obtained mixture is uniformly stirred, and the temperature of the slag is ensured; (2) the slag enters a water quenching pond through a slag inlet and is quenched with water so as to form glass particles; (3) after the glass particles are finely ground and screened, qualified glass particles are dried; (4) the dried glass particles are distributed on a shelf board and enter a nucleating area; (5) after the temperature of the nucleating area arises to 700-800 DEG C, the glass particles are subjected to heat preservation; (6) after entering a crystallization area, the glass particles are heated to 900-1100 DEG C and then subjected to heat preservation; and (7) the glass particles enter a cooling area to be cooled, thus obtaining products; and then the qualified products are subjected to surface grinding and polishing, thus obtaining a finished product microcrystalline glass. According to the invention, blast furnace slag and solid waste resources are fully used, and the product microcrystalline glass has the advantages of high strength, corrosion resistance, multiple colors and the like and has remarkable economic benefits and environmental protection benefits.

Description

technical field [0001] The invention belongs to the field of metallurgy and inorganic non-metallic materials, and provides a sintering process and equipment for producing glass-ceramic by using blast furnace slag. Background technique [0002] According to the data released by the World Iron and Steel Association, the world’s pig iron production in 2012 was 1.1 billion tons, of which the country with the highest output was China, with an annual output of 650 million tons in 2012. The output of slag is also as high as nearly 200 million tons. How to efficiently utilize these high-temperature slags has gradually become a focus of attention. The current blast furnace slag treatment process basically adopts the water flushing slag process, and the obtained products are basically used in cement production, and the blast furnace slag used as raw material for cement production has almost no profit at all. At the same time, every ton of high-temperature slag quenched at 1450-1550°...

Claims

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Application Information

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IPC IPC(8): C03C10/00C03C6/10C03B5/16
Inventor 国宏伟张建良何茂成史志文
Owner UNIV OF SCI & TECH BEIJING
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