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

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...

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.

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