METHOD OF DEHYDRATION OF THE CHLORINE-MAGNESIUM FEEDSTOCK AND THE DEVICE FOR ITS REALIZATION Russian patent published in 2007 - IPC C01F5/34 F27B15/00 

FIELD: nonferrous metallurgy; methods and the device for dehydration of the chlorine-magnesium feedstock.

SUBSTANCE: the invention is pertaining to the field of the nonferrous metallurgy, in particular, to preparation of the chlorine-magnesium feedstock to the process of the electrolytic production of the magnesium out of the fused salts. The method of dehydration of the chlorine-magnesium feedstock in the multi-chamber furnaces melt layer provides for feeding of the raw material into the furnace, relocation of the feedstock from the chamber to the chamber at treatment of it with the flue-gases produced at burning of the natural gas, the air and chlorine in the hearth and fed through the angle bar into the layer, cooling by the air of the upper part of the angle bar over the horizontal partition, trapping of the outgoing gasses. The direction of the air movement in the upper part of the angle bar over the horizontal partition is exercised zigzagging by the air transition from one section into the following one. At that the air is fed into the upper part of the angle bar at the speed of 20-30 m\s. The device is made in the form of the multi-chamber furnace of the fluidized layer and includes: the body with the fitting pipes used for the feedstock inlet and the finished product outlet; the partition of the furnace; the gas-distribution tube plate with the holes, over which there is the gas-distribution angle bar rigidly connected to the gas-distribution tube plate by its ribs and separated by the horizontal partition for the upper and the lower parts; the windows for outlet of the flue-gases; the cyclones located on one axis to the holes and shifted concerning each other; the gas-trapping cyclones for trapping of the gases. The device is additionally supplied with the guiding angle bars, which are located in the upper part of the angle bar above the horizontal partition and form the sections. At that the guiding angle bars are mounted between the cap holes and are equally spaced from the axis of the cap and made in the form of the rectangular triangle rigidly connected alternately to each of sides of the angle bar. At that the hypothenuse is attached to the interior side of the angle bar, and one of legs - to the partition of the angle bar. The invention allows to increase the service life of the fluidized layer furnace, to improve the quality of the dehydrated carnallite.

EFFECT: the invention allows to increase the service life of the fluidized layer furnace, to improve the quality of the dehydrated carnallite.

3 cl, 2 dwg, 1 ex