JPS6029544B2 - Gunning device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a gunning device used in repair work of the inner wall surface of a furnace.

Note that the gunning device herein refers to a device that performs coating by lining, coating spraying, etc. [Prior art and its problems] As a conventionally known gunning device, US Pat. No. 347
No. 3737 specification and U.S. Patent No. 335128y-Cho specification, but in both cases, the spray pipe only moves forward and backward from the carrier or large-diameter pipe that supports it, and is not extended in multiple stages. The spray pipe required a considerable amount of turning space and a considerable distance to advance and retreat, and therefore had difficulties in operability.

The present invention allows the shooting pipe to be delivered and rotated reliably and accurately, thereby allowing the spray nozzle to quickly and accurately reach the repair area, improving the efficiency of repair work, and effectively preventing damage to the shooting pipe. The purpose of the present invention is to provide a gunning device that can prevent

[Means for solving problems]

In order to solve the above problems, in the present invention, a gunning device is provided with a receiving tube support column on a frame, and a shooting pipe consisting of a plurality of pipes that are fed out in multiple stages through the receiving tube is attached to the support column. It is constructed by attaching a line extraction mechanism with a drive source to each of the constituent pipes of the stage, and attaching a pipe rotation mechanism to the receiver tube support column to integrally rotate all the constituent pipes via the receiver tube.

〔Example〕

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be specifically described below based on embodiments shown in the accompanying drawings.

In the attached drawings, 1 is a stand (in the drawing, a traveling trolley is an example) having a rotating support 1' (a turntable, etc.), and 2 is a flat surface mounted directly or indirectly on the rotating support. Receiving pipe attached to the top so that it can be turned left and right, 3
is fed out over at least two stages onto the same receiving tube (
A shoening pipe consisting of a plurality of constituent pipes placed in a state of expansion and contraction, 4 a plurality of line drawing mechanisms with driving sources provided corresponding to each constituent pipe and capable of drawing out each pipe, 5 a A refractory material spray nozzle attached to the tip of the pipe, 6 a rotation mechanism for rotating the receiving pipe 2 around its axis, 7 a tilting mechanism for tilting the receiving pipe 2 up and down, 8 a hose for transporting refractory material , 9 is a wire or water hose inserted into the hose 8 for transporting refractory materials or connected to the middle of the hose 8 for transporting refractory materials as shown in FIG. Rotating support body 1' such as a turntable for rotating the machine or a commercial joint, or a valve for introducing refractory material into a fireproof tank, or for performing various operations such as discharging each component pipe. A pendant switch, 11 a water injection tank provided as necessary, 12 a furnace body such as a converter, and 13 a refractory storage tank.

As shown in FIG. 3, as a specific example, the shooting pipe 3 includes an outer pipe 3-1 and an inner pipe 3-2 slidably provided within the outer pipe and connected to a hose 8 at one end. It is configured. Note that the rotating support 1' of the receiving tube 2
Regarding the manner in which it is mounted on the top, 14 and 15 are first and second bearing parts that rotatably support the receiving tube 2, 16 is fixed to the upper end of the first bearing part 14, and is mounted on the rotating support 1'. This is the receiving pipe support pillar provided. Further, a cooling water chamber may be provided in the receiving pipe 2 or the shooting pipe 3.
For example, when the present invention is used, the gunning device is connected to the furnace body 12 during the traveling process of the trolley as shown in FIG.
Then, move the shooting pipe 3 in the axial direction of the furnace and turn the pendant 2 toggle trowel each wire feeding mechanism 4, 4', 4'', especially the feeding mechanism 4, 4' with a drive source.
If the outer tube 3-1 and the inner tube 3-
As shown in FIG. 5, the outer tube 3-1 is extended while maintaining the strength of the outer tube 3-1, and enters the furnace.

At that time, as mentioned above, the three line feeders 4, 4' with drive sources can feed out each component pipe 3--, 3-2 independently, so the component pipes can be delivered extremely accurately and reliably. Furthermore, if necessary, it is also possible to operate only a desired outstanding mechanism with a drive source, for example, the steering mechanism 4, and leave the other line drawing mechanisms 4' with a drive source inoperative. . After that, the rotating mechanism 6 is driven to move all the constituent pipes 3-1 and 3-2 of the shooting pipe 3 to the receiving pipe 2.
At the same time, by driving the tilting mechanism 407, the spray nozzle 5 is exposed to the furnace repair section.

In this operation, all constituent pipes of the shooting pipe 3 are rotated as one through the receiver pipe 2, so that it is possible to prevent false twisting that occurs when each constituent pipe is rotated individually, and damage to the constituent pipes can be prevented. At the same time, the spray nozzle 5 can be more accurately aligned with the repaired part in the furnace.
Next, when the pendant switch 10 is operated to operate the electromagnetic valve of the tank 13 for storing slurry refractory material, the tongue opening/closing valve is released, and the refractory material is removed by the action of a water hose or air hose selected from wet or dry methods. is blown out from the spray nozzle 5 through the refractory material transportation hose 80, the outer tube 3-1, and the inner tube 3-2, and is applied to the repaired area.

Further, after the repair work is completed, the outer tube 3-1 and the inner tube 3-2, which are the constituent pipes of the shooting 3, are retracted toward the receiving tube 2 and returned to the original standby position. [Effects of the Invention] As described above, the present invention can achieve the following effects.

Since the shooting pipe has a multistage line-out structure, the turning space and advancing/retreating space can be minimized, and operability and maneuverability can be significantly improved.

'Row Each component pipe can be reliably and accurately extended to the furnace by a line extraction mechanism with a driving source, and the shooting can be advanced and retreated accurately.

However, when the innermost component pipe with low rigidity is rotated through the receiving pipe and the outer component pipe with sufficient rigidity, the rotation is transmitted through contact of sufficient length and area, so that algae can occur. Never.

Therefore, the spray nozzle attached to the tip of the innermost pipe can be rotated accurately, and the spray nozzle can be accurately directed to the area to be repaired.

[Brief explanation of drawings]

FIG. 1 is a plan view of the gunning device according to the present invention, and FIG.
3 is a longitudinal sectional view taken along line 1-1 in FIG. 1, FIG. 4 is a longitudinal sectional view taken along the Rollo line in FIG. 1, and FIG. 5 is an explanation showing the extended state of the spray nozzle. 6 is an explanatory diagram showing the moving state of the shooting pipe, FIGS. 7 and 8 are explanatory diagrams showing each modification of the shooting pipe, and FIG. 9 is a perspective view showing one modification of the gunning device. be. In the figure, 1: Traveling trolley, 2: Receiving pipe, 3: Shooting pipe, 3-1: Outer pipe, 3-2: Inner pipe, 4, 4': Pipe line extraction mechanism with drive source, r: Drive Genless pipe line extraction mechanism, 5
: Spray nozzle, 6: Rotating machine. Fig. 2 Fig. 4 Ship chart Ship chart Ship Fig. 5 Fig. 7 Fig. 9

Claims (1)

[Claims] 1. Install a receiving pipe support column on the pedestal, attach a shunting pipe consisting of multiple component pipes that are fed out in multiple stages to the solid support column via the receiving tube, and attach a feeding mechanism with a drive source to each component pipe in each stage. , and a gunning device characterized in that a pipe rotation mechanism for integrally rotating all the constituent pipes via the receiving pipe is attached to the receiving pipe support column.