OXYGEN CONVERTER FOR PROCESSING IRON AND METAL SCRAP WITH INCREASED CONTENT OF HARMFUL IMPURITIES Russian patent published in 2017 - IPC C21C5/42 C21C5/28 

FIELD: metallurgy.

SUBSTANCE: oxygen converter for processing a batch with increased content of harmful impurities contains a cylindrical metal body lined by the inner refractory and belted from the outside with two bandages and a gear ring with a spherical bottom and a truncated cone neck that can be rotated in a vertical plane on two support pins and rotated on the centering rollers with respect to the longitudinal axis of symmetry with the help of individual drives located on the working platform. The converter is equipped with a powdered lime feed system in a jet of oxygen through a water-cooled tuyere containing mechanisms for moving and tilting the tuyere, as well as a metering device. In addition, it is additionally equipped with a gas-dynamic cut-off system for the final process slag during the discharge of the melt through the neck into a ladle containing two rigidly interconnected rockers fixed to the horizontal shaft mounted in bearing supports perpendicular to the vertical plane, in which the longitudinal axis of symmetry and the converter body lie. Moreover, the rockers are provided with C-shaped guide rails with rollers mounted therein, rotatably mounted on the end portions of the cylindrical gas distribution chamber having slotted holes and rigidly connected to one end of the gas supply pipe, the other end of which is fixed in a hinge support. At the rear ends of the rockers there are counter-loads, and on the front axles, the levers that are engaged, when turning the converter body with the supports fixedly mounted on its support ring, are fixed by means of the axles.

EFFECT: improving the quality of the melted steel and decreasing the wear rate of the ladle lining.

7 dwg