JPS6130004B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention involves charging a viscous refractory into a pouring pipe and extruding it by an extrusion mechanism such as a piston provided in the pipe. The present invention relates to the structure of a pouring pipe in an apparatus that pours out steel and repairs the damaged portion of the refractory layer on the inner wall of a converter tapping port by applying refractory material.

[Conventional technology]

Conventionally, as a repair device for a converter tap, there has been a method described in JP-A-46-5703, in which powdered refractory is ejected from a hopper through a pressure pipe and a tip nozzle; Alternatively, a refractory that is not preformed is charged into a spouting pipe, extruded by an extrusion mechanism placed at the rear of the pipe, poured out from a spout at the tip of the pipe, and coated with a trowel at the tip of the pipe. be.

In either type, the pipe main body is an integral structure, and the only structure is that the tip spouting part or the spouting part can be separated and removed from the pipe.

[Problem that the invention seeks to solve]

The pouring pipe in such converter tapping port repair equipment may become clogged with refractories that can lead to damage during operation. Blockage occurs near the proximal end, requiring relatively frequent replacement of the spout pipe.

When replacing the pipe in this case, the entire device supporting the pipe must be disassembled, making the pipe replacement extremely complicated, requiring time and effort.

The purpose of the present invention is to replace pipes that have hindered efficiency improvement when repairing the tap hole in converter operation, particularly in a device for repairing a tap hole in a converter that extrudes and pours out viscous refractories. An object of the present invention is to provide a structure of a refractory pipe that can eliminate the trouble of.

[Means for solving problems]

The present invention provides a refractory pouring pipe with a two-part body consisting of a long pipe and a short pipe that can be connected to each other in a detachable manner. The above objective has been achieved by locating the

Hereinafter, means for solving the above problems will be specifically explained based on the embodiment shown in the attached drawings.

In the embodiment shown in FIGS. 1 to 4, 1 is a refractory pouring pipe, 1a is a widened end thereof, and 1
b is a pouring hole, 1c is a loading door for the preformed refractory block A, 2 is a traveling vehicle on which the refractory pouring pipe 1 is rotatably mounted, 2b is a wheel, 2c is a pipe support bearing, and 2d is for rotation. 2e is a rotation transmission gear, 2h is a chain, 2i is a sprocket wheel, 2j is a sprocket wheel drive motor, 3 is a moving machine frame incorporating a refractory pouring pipe and advance/retreat device 2, and 3a is a wheel 2b. rail for,
3b is a centering guide, 3c is a clamp magnet, 3d is a centering adjustment cylinder, 3e is a spring, 3f is a wire, 3g is a running roller, 3
h is the drive device for the same roller, 3i is the electric/hydraulic system connector, 4 is the refractory extrusion device, 4a is the extrusion cylinder of the refractory block A, 8 is the operation panel, and 9 is attached to the tapping port C of the converter B. The centering guide cylinder is shown.

FIG. 5 shows an example in which the advancing/retracting device 2 is changed to a hydraulic cylinder 2k instead of a chain drive.

In this basic configuration, the refractory pouring pipe 1 according to the present invention, as shown in FIG. It is characterized in that it can be separated from the end side spouting pipe 1e and can be easily attached and detached. That is, the distal side spout pipe 1d is provided with a locking groove 1h, and the proximal side spout pipe 1e is provided with a locking groove 1h.
A locking groove 1i is provided in.

With this configuration, if the refractory is clogged or damaged inside the refractory spout pipe 1, the distal end spout pipe 1d of the refractory spout pipe 1 can be quickly removed from the proximal end. It can be quickly and easily removed from the outlet pipe 1e and replaced.

7 to 9 show various structural examples of the tip of the refractory pouring nozzle 1. In FIG. 7, a cooling chamber 1j is provided inside the widened portion 1a, and a cooling water pipe 1 is connected to the cooling chamber 1j.
Fig. 8 shows a longitudinal section thereof. Figure 9 shows a refractory pouring pipe 1 with a plurality of steam jacks 1 liter installed around the outer periphery.
Used for refractories containing tar.

〔Effect of the invention〕

As described above, in the present invention, the refractory pouring pipe can be divided into two parts from the base end, so even if the pipe is blocked or damaged, it can be easily and quickly replaced without disassembling the vehicle, and repairs can be made. This has the effect of significantly improving work efficiency.

[Brief explanation of the drawing]

FIG. 1 is a side view of a converter tap repair device equipped with a refractory pouring pipe according to the present invention, FIG. 2 is a front view of the same device, and FIG. 3 is a front view showing the converter tap. , FIG. 4 is a perspective view showing a refractory extrusion device, FIG. 5 is a perspective view showing another example of the advancing/retracting device, FIG. 6 is an explanatory diagram showing a method for replacing a refractory pouring pipe, and FIG. 7 9 are explanatory diagrams showing the structure of the tip of the refractory pouring pipe. A... Refractory block, B... Converter, C... Steel tap, 1... Refractory pouring pipe, 2... Advancement/retraction device,
3... Mobile machine frame, 4... Refractory extrusion device.

Claims (1)

[Claims] 1. A refractory pouring pipe having a refractory extrusion mechanism is rotatably supported on a machine frame, and the refractory pouring pipe is divided into two parts, each consisting of a long pipe and a short pipe, in a mutually detachable connection structure. and same 2
1. A refractory spout pipe for repairing a converter tap port, characterized in that a connecting portion of the divided body is located on the proximal end side of the refractory spout pipe.