Extrusion-type deslagging device for oxygen lance

Abstract

The invention discloses an extrusion-type deslagging device for an oxygen lance and belongs to deslagging devices. The extrusion-type deslagging device structurally comprises two oscillating cylinders, two rotating arms, two deslagging tool bits, a fixed support and two oscillating cylinder supports, wherein the oscillating cylinder supports are connected with oxygen lance track columns at the two ends of an oxygen lance track cross beam respectively; the fixed support is arranged at the position, between the two oscillating cylinder supports, on the oxygen lance track cross beam; each oscillating cylinder support is hinged to one of the oscillating cylinders; the other end of each oscillating cylinder is hinged to one of the deslagging tool bits; each deslagging tool bit is hinged to the fixed support through one of the rotating arms; and the two deslagging tool bits are positioned at the left end and the right end of an oxygen lance respectively. The extrusion-type deslagging device for the oxygen lance has the characteristics that potential safety hazards of manual deslagging can be eliminated; the adhesive force between slag and the lance can be overcome by use of extruding and shearing forces, and a steel wire rope of the oxygen lance is free of impulsive load in the deslagging process, so that equipment running is safe; and the deslagging tool bits are stably stressed in the deslagging process, and therefore have low probability of damage.

Description

technical field [0001] The invention relates to a slag removal device, in particular to a squeeze-type oxygen lance slag removal device for removing sticky slag from an oxygen lance used in a top-bottom combined blowing converter in a steelmaking plant. Background technique [0002] Oxygen lance is the process equipment that must be used in the top-bottom combined blowing converter. When blowing oxygen, the lance body is in contact with liquid steel slag, which may easily cause the lance body steel slag to adhere. At present, most domestic slag removal is done manually, and some steel mills use slag scrapers to hang slag. Our factory used to remove slag manually, and many industrial accidents occurred every year because of this. Potential safety hazards and high-intensity operations are the biggest drawbacks of manual slag removal. The slag scraper uses the rising force when the oxygen lance is hoisted up to scrape off the sticky slag on the gun body with a slag scraper. D...

AI Technical Summary

Problems solved by technology

During slag removal, the hoisting of the oxygen lance and the slag scraper are subject to impact loads, and the magnitude of the impact cannot be controlled, which may easily cause the wire rope to break or the slag scraper to be damaged due to excessive impact. The mechanical properties of the slag scraper are strictly required and the operating cost is high.

In addition, this method cannot be applied to the tapered oxygen lance

[0003] Therefore, it is the key to solve the problem of oxygen gun slag removal to seek a safe and reliable mechanical slag removal technology, to eliminate the safety hazards of manual slag removal, and to overcome the hidden dangers of scraping slag removal equipment.

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