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A method for online continuous processing of molten titanium-containing blast furnace slag

A treatment method and technology of blast furnace slag, which is applied in the field of online continuous processing of molten titanium-containing blast furnace slag, can solve the problems of large water consumption, increased processing procedures, and waste of heat, so as to reduce energy consumption, solve large-area accumulation and pollute the environment , to avoid the effect of large footprint

Active Publication Date: 2022-05-20
SUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This process provides a cooling method for hot high-titanium blast furnace slag, but on the one hand, it needs to transfer the slag during the slag turning process, which increases the treatment process; Large, and the heat in the slag will be completely wasted
[0005] It can be seen from the above that the current method of preparing construction gravel by cooling the hot titanium-containing blast furnace slag has some shortcomings in terms of processing procedures, energy consumption, and crystallization behavior control.

Method used

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  • A method for online continuous processing of molten titanium-containing blast furnace slag
  • A method for online continuous processing of molten titanium-containing blast furnace slag

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] (1) The high-temperature liquid molten titanium-containing blast furnace slag discharged from the blast furnace 1 enters the quenching and tempering furnace body 21 through the slag ditch 5;

[0060] (2) In the quenching and tempering furnace body 21, 6% quartz sand, 3% alumina powder, 0.5% fluorite tailings and 0.5% ferrochrome slag are added by the feeding pipe 22 in a top-blown manner, while the gas spray gun 23 is heated by combustion and heated to 1450°C;

[0061] (3) The titanium-containing blast furnace slag after quenching and tempering enters the crystallization control furnace body 31 through the guide pipe 6, and the thickness of the titanium-containing blast furnace slag is controlled by the roll 32, and the thickness of the titanium-containing blast furnace slag is controlled to be 10 mm, and is transported The roller 35 drives the bearing plate 36 to transport the titanium-containing blast furnace slag;

[0062] (4) In the process of passing through the r...

Embodiment 2

[0066] (1) The high-temperature liquid molten titanium-containing blast furnace slag discharged from the blast furnace 1 enters the quenching and tempering furnace body 21 through the slag ditch 5;

[0067] (2) In the quenching and tempering furnace body 21, 13% quartz sand, 5% alumina powder, 1% fluorite tailings and 1% ferrochrome slag are added by the feeding pipe 22 in a top-blowing manner, and the gas spray gun 23 is heated by combustion and heated to 1500°C;

[0068] (3) The titanium-containing blast furnace slag after quenching and tempering enters the crystallization control furnace body 31 through the guide pipe 6, and the thickness of the titanium-containing blast furnace slag is controlled by the roll 32, and the thickness of the titanium-containing blast furnace slag is controlled to be 30 mm, and is transported The roller 35 drives the bearing plate 36 to transport the titanium-containing blast furnace slag;

[0069] (4) In the process of passing through the roll...

Embodiment 3

[0073] (1) The high-temperature liquid molten titanium-containing blast furnace slag discharged from the blast furnace 1 enters the quenching and tempering furnace body 21 through the slag ditch 5;

[0074] (2) In the quenching and tempering furnace body 21, 16% of quartz sand, 7% of alumina powder, 1% of fluorite tailings and 1% of ferrochrome tailings are added in a top-blowing manner from the feeding pipe 22, and the gas The spray gun 23 is heated by combustion and heated to 1550°C;

[0075] (3) The titanium-containing blast furnace slag after quenching and tempering enters the crystallization control furnace body 31 through the guide pipe 6, and the thickness of the titanium-containing blast furnace slag is controlled by the roll 32, and the thickness of the titanium-containing blast furnace slag is controlled to be 50mm, and is transported The roller 35 drives the bearing plate 36 to transport the titanium-containing blast furnace slag;

[0076] (4) In the process of pas...

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Abstract

The invention discloses an on-line continuous processing method for molten titanium-containing blast furnace slag, which comprises the following steps: performing quenching and tempering treatment on high-temperature liquid molten titanium-containing blast furnace slag; cooling and forming the titanium-containing blast furnace slag after quenching and tempering treatment; cooling and forming The titanium-containing blast furnace slag is subjected to crystallization control; the titanium-containing blast furnace slag after crystallization control is subjected to cracking treatment to obtain slag blocks; and the cracked slag blocks are screened. The invention utilizes the strong self-crystallization ability of the titanium-containing blast furnace slag, and reduces the energy consumption in the process of cooling and melting the titanium-containing blast furnace slag by performing composition control, cooling temperature system control, crystallization optimization, and stress excitation on the molten titanium-containing blast furnace slag. , improve the crystal phase composition of the condensed slag, reduce the content of the glass phase, and also reduce the energy consumption when breaking the slag, with a small footprint and low labor loss, and obtain titanium-containing blast furnace slag used as building concrete aggregate block, thereby realizing bulk "on-line" processing of molten titanium-containing blast furnace slag.

Description

technical field [0001] The invention relates to the technical field of blast furnace slag processing, in particular to an on-line continuous processing method for molten titanium-containing blast furnace slag. Background technique [0002] Titanium-containing blast furnace slag is a high-TiO produced by the smelting of vanadium-titanium magnetite in my country. 2 content of solid waste, compared with ordinary blast furnace slag, titanium-containing blast furnace slag, especially high-titanium blast furnace slag due to high TiO 2 The content makes it impossible to use it as a cement production additive for large-scale processing, resulting in a large amount of accumulation. With the increasingly stringent environmental protection requirements, the large-scale titanium-containing blast furnace slag accumulated in the ravines and forest edges urgently needs to be treated, and the newly produced titanium-containing blast furnace slag also urgently needs to be treated "online" t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B5/06C04B5/00C21B3/08C21B3/06
CPCC04B5/06C04B5/00C21B3/08C21B3/06Y02W30/50
Inventor 闫炳基黄晓峰赵伟李鹏国宏伟杨墨瞳
Owner SUZHOU UNIV
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