JPS62267408A - Transverse tilting device for continuous steel making furnace - Google Patents

Abstract

PURPOSE:To enable optional and universal tilting of a continuous steel making furnace in a transverse direction by mounting one wheel of an installed carriage with the continuous steel making furnace to a frame carriage via a shaft at one end and mounting the other end to a lever supported to a hydraulic cylinder, etc. CONSTITUTION:The wheel 8 on the slag discharge port 4 side of the carriage frame 7 installed with the continuous steel making furnace 1 is mounted via a bearing 8' to the carriage frame 7. The wheel 9 on the opposite side is mounted via a bearing 9' to the lever turnably mounted via the shaft 10 to the carriage frame 7. The other end of the lever 11 is supported via a bracket 13 to the carriage frame 7 by the liquid pressure cylinder 12. The carriage frame 7 tilts 17 around the wheel 8 via the lever 11 toward the slag discharge port 4 side of the continuous steel making furnace 1 when liquid pressures 19, 19' are acted to the hydraulic cylinder 12 in the above-mentioned constitution. The correction of the slag discharge level is thereby permitted and the repair or relining of the slag discharge port 4 and refractory material is permitted, by which the stable operation is executed.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a lateral tilting device in a continuous steelmaking furnace such as a C8M plant.

[Conventional technology]

FIG. 3 is a diagram showing a conventional continuous steel-making furnace. As shown in this figure, the conventional continuous steel-making furnace 1 has two inlets at both ends.
It is a bridge-shaped vessel having a tapping port 5, in which hot metal 14 is continuously supplied to the receiving port 2, and molten steel is blown with oxygen in the furnace, and molten steel 15 is continuously obtained from the tapping port 3. It is a facility that can be used. A slag discharge port 4 for discharging slag is provided on the side of the furnace.

This continuous steelmaking furnace is generally replaceably installed on a movable trolley 7 so that it can be quickly replaced for repairs or the like. Further, at the end of the operation, in order to discharge the residual metal in the furnace from the tapping port 3, the structure is such that it can be tilted 18 by a hydraulic cylinder 6 around a bearing 5. Trolley 7
is bearing 8', ? It has wheels 8 and 9 supported by ', and can run horizontally on the rail 20 with its own blade by an electric motor or the like.

[Problem that the invention seeks to solve]

One major problem with such a conventional continuous steelmaking furnace 1 is erosion of the refractory material and changes in the slag level due to slag outflow. In continuous steelmaking operations, the most stable and desirable slag level is 150 to 200 cm above the hot water level, and when this level decreases due to erosion of the refractory material, molten steel 15 flows out from the slag opening 4, and the slag The reaction also becomes unstable. On the other hand, when the level of slag becomes high, the amount of slag remaining increases, it becomes difficult to remove the CO gas, and an abnormality occurs at the tapping port 5. For this reason, during long-term continuous operation, it is always necessary to correct the level of slag by repairing the fireproof material at the slag outlet 4.

With the current equipment, it is very difficult to repair the refractory material at the slag outlet 4 and correct the slag level valve, and due to the structure of the bogie, it is essential to tilt it in the direction of flow of hot metal and molten steel, so it will be possible to tilt it laterally. requires large-scale equipment. From the above, when the conventional continuous steelmaking furnace 1 is operated for two days, the refractory material erodes, the slag level decreases, and the yield decreases due to metal outflow from the slag outlet 4 and abnormal reactions. It has very aggravating drawbacks.

〔the purpose〕

SUMMARY OF THE INVENTION The present invention aims to eliminate the above-mentioned drawbacks, and aims to provide a lateral tilting device for a continuous steel making furnace that can freely tilt the continuous steel making furnace in the lateral direction.

〔problem? Means to solve]

In order to achieve all of the above objects, the present invention provides that one end of one wheel of a truck is attached to the truck frame via a shaft, the other end is attached to a lever supported by a hydraulic cylinder, etc. The point is that it is attached to the bogie frame.

That is, the present invention provides a continuous steelmaking furnace that is installed and movable on a truck, and one wheel of the truck has one end attached to the truck frame via a shaft and the other end supported by a drive mechanism. The wheel is additionally attached to a swingable lever, and the other wheel is attached to the truck frame, and by optionally acting on hydraulic pressure, the truck frame on the blade side is lifted up through the lever,
This is a lateral tilting device for a continuous steel making furnace that allows a continuous steel making furnace installed on a bogie to be laterally tilted by tilting the bogie frame around the entire center of the other wheel.

The lateral tilting device according to the present invention is characterized by lifting the cart by pressing down the wheels on one side of the cart, tilting the cart itself, and tilting the continuous steelmaking furnace installed on it. According to the present invention, there is no hindrance to the running function of the trolley due to tilting.
Also, the generated lateral force is small, so it is very safe.

〔Example〕

The present invention will be described in detail based on FIGS. 1 and 2. FIG. 1 is a side view of a lateral tilting device in a continuous steelmaking furnace which is a practical example 7A of the present invention, and FIG. FIG.

In FIGS. 1 and 2, based on the above-mentioned FIG.
The same parts as in the conventional continuous steelmaking furnace are given the same reference numerals and have the same function, so we will omit the explanation here and explain the differences.Continuous! A
The slag discharge port 4 side wheel @8 of the steel furnace 1 has a bearing 8'? is directly attached to the truck frame 7 through the wheel 9 on the opposite side.
It is attached via a bearing 9' to a lever 11 which is rotatably attached to the truck frame 7 via a shaft 10.

The other end of the lever 11 is connected to a drive mechanism (here, a hydraulic cylinder) that is attached to the truck frame 7 via a bracket 13.
Supported by 12. In addition, as the drive mechanism, a pneumatic cylinder, an electric cylinder, a jack, etc. can be used.

When hydraulic pressure 19, 19' is applied to the hydraulic cylinder 12,
As shown in FIG. 2, the lever 11 operates to push down all of the wheels 9, and conversely, the truck frame 7 lifts up relative to the rail 20. Therefore, the truck frame 7 is tilted 17 about the wheels 8, and the continuous steel making furnace 1 installed thereon is tilted toward the slag discharge port 4 for discharging the slag 16. Moreover, if a tilting mechanism is provided on the wheel 8 side, it is possible to tilt in the opposite direction. In this case, it is necessary to provide a drive device for lateral travel of the bogie on the wheels on the fixed side. In addition, the truck frame 7 has wheels 8 and 9? has,
Therefore, this trolley is automatically moved to the rail 2 by an electric motor, etc.
0 in the horizontal direction.

As described above, the continuous steel making furnace of the present invention can be tilted or returned in the lateral direction at will by applying hydraulic pressure, and the operability of the continuous steel making furnace is greatly improved.

[Effects of the Invention] As described in detail above, the present invention provides a system in which one end of one wheel of a truck is attached to the truck frame via a shaft, and the other end is attached to a "lever" supported by a hydraulic cylinder or the like. The other wheel is attached to the bogie frame, so a continuous steelmaking furnace is optional.
Freely tilt laterally, 8! Moreover, it is possible to run the trolley and tilt the furnace in the vertical direction while it is still tilted, so does it interfere with the functions of other trolleys? An effect that is not given occurs. In addition, the slag discharge level (position) can be adjusted arbitrarily by tilting, and after temporarily lowering the level of slag and molten steel in the furnace, the slag discharge port and refractory material can be repaired or replaced. There are also effects such as making it possible. As a result, in the present invention, the continuous steel making furnace is stable and can be operated continuously for a long time under constant conditions.

[Brief explanation of the drawing]

FIG. 1 is a side view of a continuous steelmaking furnace that is an embodiment of the present invention, and FIG. 2 is a partially detailed view of FIG. 1. Is Figure 3 a conventional continuous steelmaking furnace? FIG. 1; Continuous steelmaking furnace 15; Bracket 2; Inlet
14: Hot metal 3: Tapping port 15: Molten steel 4; Slag port 16; Slag 5; Slag holder 17, 18; Tilt 6: Hydraulic cylinder 19.19'; Hydraulic pressure 7: Bogie frame 20;
Rail 8.9; Car mechanic 21; Travel 61, g I; Bearing 10: Shaft 11; Lever 12: Hydraulic cylinder Fig. 1 Fig. 2 Fig. 3

Claims (1)

[Claims] In a continuous steelmaking furnace that is installed and movable on a bogie, one wheel of the bogie is attached to a lever with one end attached to the bogie frame via a shaft and the other end supported by a drive mechanism so that it can swing. , the other wheel is attached to the bogie frame, by applying hydraulic pressure arbitrarily, lift the bogie frame on one side via a lever, and lift the bogie frame around the other wheel. A lateral tilting device for a continuous steelmaking furnace that allows a continuous steelmaking furnace installed on a trolley to be laterally tilted by tilting.