Slag-blocking steel-tapping device for revolving furnace

Abstract

The invention discloses a slag-blocking steel-tapping device for a revolving furnace. The slag-blocking steel-tapping device includes a connecting plate, a mounting plate and a door frame. Both sides of the upper face of the connecting plate are each provided with a guiding positioning hook, a positioning column and a swing bolt; both sides of the mounting plate are each provided with a hook shaft and half of a groove hole, and the mounting plate is embedded onto the connecting plate through the positioning columns; the door frame is connected with the mounting plate through a door frame hinge pin, sliding bars are arranged in the door frame, sliding frames can slidingly located in the door frame respectively along the sliding bars, and the interior of each sliding frame is provide with a spring box; the interiors of the sliding frames are also provide with a sliding slide plate brick and a sliding water gap brick, and the sliding slide plate brick and the sliding water gap brick are respectively provided with a steel flowing hole; the mounting plate is provided with a fixed slide plate brick, and the sliding slide plate brick, the sliding water gap brick and the fixed slide plate brick perform relative motion. The slag-blocking steel-tapping device for the revolving furnace is reasonable in structure, safe and reliable in use, simple in operation, and convenient to repair and replace, has good slag-blocking effect, and meets the requirements of steel tapping with less or no slag during steelmaking with the revolving furnace.

Description

technical field [0001] The invention relates to a mechanical device for controlling the flow rate of a liquid metal outflow port of a steelmaking mechanical equipment, in particular to a slag blocking and tapping device for a converter. Background technique [0002] Steel slag produced in converter steelmaking is harmful, and the slag produced during converter steelmaking includes three parts: early slag, process slag and late slag. At present, the slag blocking method widely used in converter tapping at home and abroad is to use a slag blocking cap to block the early slag, and to use a slag blocking ball and a slag blocking plug (slag blocking dart) to block the late slag. In addition, the detection methods of pneumatic slag blocking and infrared slag dropping have also been gradually applied in the control of slag dropping in converter tapping. It cannot be controlled, and the introduction of steel slag affects the quality of molten steel. Contents of the invention [...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a converter slag blocking tapping device to solve the problem that the existing slag blocking method for converter tapping cannot realize the slag blocking in the whole process before and after the converter tapping, which leads to the introduction of steel slag, thereby affecting the quality of molten steel

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