Crystal growth device

Abstract

The invention discloses a crystal growth device. The crystal growth device comprises a main body and a support vehicle, wherein the main body comprises two hemispherical spherical surface shells, the upper and the lower hemispherical spherical surface shells are buckled to form a sphere, a space is formed in the sphere to accommodate molten slag, a fastener is arranged at the buckling part of the sphere, a slag port and a slag cover are arranged at the top of the hemispherical spherical surface shell positioned at the upper part, the hemispherical spherical surface shell positioned at the lower part is connected with the support vehicle, and the main body can move along with the movement of the support vehicle. The crystal growth device according to the invention can realize the effects of heat preservation and slow cooling in a comprehensive manner from three aspects of preventing heat conduction, heat radiation and heat convection, and can enable crystals of an anosovite phase in the molten slag to grow until grain sizes meet the process requirements of follow-up ore dressing.

Description

technical field [0001] The invention belongs to the field of iron and steel metallurgy, and in particular relates to a crystal growth device for recovering useful elements from smelting slag in an electric furnace for direct reduction of vanadium-titanium-iron concentrate. Background technique [0002] The Panxi area has abundant titanium ore resources, accounting for more than 90% of the country's reserves, providing unique natural conditions for the development of the titanium slag industry. Converter direct reduction-electric furnace deep reduction is a newly developed process for recovering titanium resources in iron ore concentrates, and TiO in the slag produced 2 The content of the molten slag is more than 40%, and the molten slag is directly supplied to titanium dioxide smelting after forced cooling by water spraying. [0003] In the above molten slag, TiO 2 The enriched phase of the slag is black titanite, if the black titanite can be selected by ore dressing metho...

AI Technical Summary

Problems solved by technology

However, at present, the black titanite grains in the electric furnace slag are mixed with other minerals, and the volume is small, which cannot meet the basic requirements of the beneficiation process, and the selectivity is very low.

On the other hand, because the cooling rate is too fast, the elements in the molten slag have not yet had time to migrate to the liquid-solid phase transition interface, the slag body has solidified, and the migration is hindered, so that some useful elements can only form with the elements that need to be discarded. Homogeneous glassy phase, and this part of the beneficial element cannot be separated from the discarded element only by physical means

Images