Hydraulically compressed molten steel flow control valve with side opening door

Abstract

The invention relates to a molten steel flow and flow speed control mechanism in a steelmaking and casting process. The hydraulically compressed molten steel flow control valve with a side opening door comprises a base, a motion frame, a compressing frame and combination of refractory materials. The motion frame is arranged in the compressing frame in sliding match. The base, the motion frame and the compressing frame are compressed by spring combination which consists of a spring box, a spiral spring, a spring pull rod, a spring pressure plate and a compressing rod. The spring box and the compressing rod are matched and combined together through the spring pressure plate and the spring pull rod. Wheel shafts are arranged at both ends of the spring box and the compressing rod. Wheel shaft embedding grooves are respectively arranged on the base and the compressing frame. The mechanism is locked in such a manner that the spring in the spring combination is supported by a hydraulic operational gun, and the wheel shafts in the spring combination fall into the grooves on the compressing frame so as to form a stable pressure between upper and lower slide plates; then, the motion frame drives the upper slide plate to move in the base and the compressing frame to control the molten steel flow. The pressure of the spring compressed is constant, so that the hydraulically compressed molten steel flow control valve with the side opening door is stably operated.

Description

technical field [0001] The invention relates to a molten steel flow and velocity control mechanism in the steelmaking and casting process. In particular, it relates to a molten steel flow control valve combining machinery and refractory materials. Background technique [0002] At present, the known molten steel flow control mechanism mainly relies on manual and hydraulic drive to realize the reciprocating operation of the movable frame in the fixed frame, thereby driving the reciprocating motion of the refractory sliding plate in the movable frame and the fixed frame, realizing the opening, closing, and semi-opening of the aperture, and controlling the flow of molten steel and flow rate, but due to the unreasonable structure, there is no positioning or clamping device, and there are tolerances in the cooperation of the movable frame, the fixed frame, and the refractory slide plate, resulting in the slide plate not being able to be fully opened, causing the slide plate to pul...

AI Technical Summary

Problems solved by technology

[0002] At present, the known molten steel flow control mechanism mainly relies on manual and hydraulic drive to realize the reciprocating operation of the movable frame in the fixed frame, thereby driving the reciprocating motion of the refractory sliding plate in the movable frame and the fixed frame, realizing the opening, closing, and semi-opening of the aperture, and controlling the flow of molten steel and flow rate, but due to the unreasonable structure, there is no positioning or clamping device, there are tolerances in the cooperation of the movable frame, the fixed frame, and the refractory slide plate, resulting in the slide plate not being fully opened, causing the slide plate to pull grooves during use, and the unreasonable fixation of the slide plate often leads to Radial cracks appear on refractory slides at high temperature, and these design defects directly affect the continuous sliding of the slides.

The traditional slide mechanism adopts the method of opening the door up and down to replace the slide plate, which has the disadvantages of high labor intensity, complicated operation, poor safety performance, and high-efficiency continuous casting without steelmaking, which affects the rhythm of steelmaking and the promotion of new steelmaking technologies

Images