Light - fired magnesium oxide is an important refractory material

Magnesia lite is an important refractory. Magnesia powder is a kind of raw material with moderate alkalinity and chemical activity. Besides being used as refractory and cementation material, it is also used in other industrial fields. In addition, the development of converter slag splashing and furnace protection skills, light burning magnesia, further expanded the use of light burning magnesia powder. At present, slag splashing furnace protection skills will be more light fired magnesium oxide powder into the ball after use, there are light fired magnesium oxide powder ball, carbon containing light fired magnesium oxide ball and carbon containing calcium light fired magnesium oxide powder ball. Light calcined magnesia powder, or light calcined magnesia for short, is an active magnesia obtained from magnesite, magnesite and magnesium hydroxide extracted from sea water or brine by calcination at about 800~1000℃. Light burned magnesia to pale yellow, light brown powder, granular mostly below 100 mesh, the periclase crystallization is small, the density of the preparation of light burned magnesia ball is 80% light burned magnesia in 2 o water, into the mixing mill by crushing, mixing, mixing 15 ~ 2 omin constitute a mixture, pressure ball mechanism through belt conveyor to send people for the product, and then to pile up. Light - fired magnesia pellets are dried in the dark for 48 hours to form strength before being ready for sale.

The necessity of improving the production process of light - burned magnesium ball

1) Loose sphere. Small density, low strength, easy to break. Especially in loading and unloading, transportation, extrusion and drop, the ball is prone to breakage.

2) Low pellet formation rate. After the raw materials are processed by the ball press machine, half are products and half are powder particles, which need to be manually returned to the ball press machine for further processing.

3) Users are not satisfied. The products on sale contain 2O%-35% small pieces and powder and other mixture, the user has repeatedly raised objections.

4) The shape of the sphere is incomplete. Some have a half ball, some have a third of the ball, some ball missing Angle, different shapes, appearance of luster, appearance image is poor.