JPS6340301Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a construction device for refractory lining of a ladle. In the construction of refractory linings for ladle, pouring of monolithic refractory material is generally being adopted as it is easier and cheaper to construct than conventional brick masonry construction. In the pouring of this monolithic refractory material, the refractory material, which has been mixed with water, is transported from a distance to a repair shop using a belt conveyor, etc., and is then dropped into the repair area from the upper edge of a ladle through a chute to fill the area. Because it is a construction method, as mentioned above, it has many advantages such as easy construction and mechanization of the work, and is a long-awaited and promising ladle lining construction method. However, since the amorphous refractory material is dropped from the upper edge of the ladle and filled, air is drawn in and many air bubbles are generated within the refractory filling area, resulting in dense and dense areas in the finished refractory lining wall, resulting in poor corrosion resistance. There are drawbacks that make it inferior. As a countermeasure for this drawback, conventionally, when pouring this monolithic refractory material, air bubbles in the refractory filling part are removed to increase the degree of filling of the refractory material and to prevent densification of the refractory material wall after construction. Methods have been taken to improve corrosion resistance by lowering porosity. For this purpose, during the pouring construction of the monolithic refractory material disclosed in JP-A No. 49-44940, or immediately after the pouring construction is completed, vibrations are indirectly applied to the filled portion of the refractory material through a metal frame, etc. A device for manually inserting a vibrating body into the refractory material-filled portion during pouring and construction of an amorphous refractory material, and the like are used. However, these devices cannot be said to be sufficient as filling devices for monolithic refractory materials for the reasons described below. First, in a device that indirectly applies vibration to the refractory filled part through a metal frame or the like, it is difficult to apply uniform vibration to the entire filled part because the vibration is indirectly applied to the refractory filled part. The improvement in corrosion resistance is not sufficient because the dense and dense areas in the finished fireproof wall remain unresolved. Furthermore, since the vibrations are transmitted to the ladle or metal frame, there is a disadvantage that the device becomes larger. Next, in a device in which a vibrating body is directly inserted manually into the inside of another poured refractory material, after pouring the refractory material, the worker moves the rod-shaped vibrator to the inside of the refractory material filling part. Since it is inserted, the air is partially degassed compared to the above-mentioned indirect vibration, but it tends to cause spots due to workers, and the elimination of dense and dense areas in the refractory wall is still insufficient, so the improvement in corrosion resistance is still insufficient. It is. Furthermore, since the filling operation takes a long time, the poured refractory material may harden, which may hinder the construction process. As mentioned above, with the conventionally used monolithic refractory filling equipment, the removal of air bubbles from the refractory filling part is still insufficient, the corrosion resistance of the refractory wall varies depending on the part, and the workability is poor. It is difficult to say that the conventional device is a fully satisfactory filling device because it has drawbacks such as the large size of the device. The present invention has been made in order to sufficiently solve the above-mentioned drawbacks.The present invention is based on a freely movable trolley with a frame integrally provided with a guide frame mounted on the platform so as to be tiltable. A guide roller is provided which is mounted on a shaft facing the part, one row is pressed against the repulsion elastic body, and one of the other rows is connected to a drive source to hold the rod-shaped vibrator in a vertically movable manner. A filling construction device for monolithic refractory material lining a ladle, characterized in that an advancing and retreating device is provided at one end of the rod-shaped vibrator to clamp both ends of the rod-like vibrator and move it up and down by being pulled by a guide roller row pressed by a repulsive elastic body. It is. Hereinafter, one embodiment of the present invention will be described based on the drawings. FIG. 1 is a side view of the entire apparatus for filling and applying monolithic refractory material according to the present invention, and FIG. 3 is an explanatory view of an embodiment of the apparatus according to the present invention. First, in FIG. 1, a rod-shaped vibrator 1 is, for example, a steel pipe with a suitable diameter, with a vibrating part 2 having a built-in vibrating body 2a fixedly attached to the tip or lower end thereof, and one end attached to the rear end or upper end thereof. A current-carrying cable 4 is attached, which is connected to the vibrating body 2a and whose other end is connected to the take-up reel 3. This rod-shaped vibrator 1 is held between guide rollers 6a and 6b and between guide rollers 7a and 7b, which are mounted on appropriate parts of a guide frame 5, which is constructed by assembling steel plates by means such as welding. . The guide roller 6b facing the guide roller 6a and the guide roller 7b facing the guide roller 7a are each supported by a repulsive elastic body (not shown) such as a spring, in order to hold the rod-shaped vibrator 1 with an appropriate pressing force. It is constantly pressed toward the opposed guide rollers 6a and 7a. Furthermore, guide roller 6
In order to increase the holding force of the rod-shaped vibrator 1, it is preferable to provide recesses (not shown) in a, 6b, 7a, and 7b with an appropriate depth, for example, close to the outer diameter curvature of the rod-shaped vibrator 1. A gear wheel 8 is fitted to the other end of the shaft of one of the guide rollers mounted on the guide frame 5, for example 7a, by a means such as a key, and the gear wheel 8 is connected to the shaft through a chain 9. It is connected to an electric motor 10. The remaining guide rollers are rotatably supported. Next, an advancing/retracting device 11 having a configuration described later is fixed to the guide frame 5 by a tightening means such as a bolt, parallel to the direction in which the rod-shaped vibrator 1 is guided and held. The advancing/retracting device 11 is a cylinder with both ends, and clamp devices 13a , 13b are integrally fixed to the shaft ends of the advancing/retracting shafts 12a, 12b of each cylinder via mounting plates 14a, 14b. There is. The clamp devices 13a and 13b include clamp parts 16a and 16b that respectively grip appropriate parts of the rod-shaped vibrator 1, and clamp parts 1
Cylinders 15a, 1 for advancing and retracting 6a, 16b
5b. Furthermore, the cylinders 15a of the advance/retreat device 11 and the clamp devices 13a , 13b ,
15b are each connected to a source of pressurized fluid, such as compressed air, via a flexible hose (not shown). A support plate 18 for the take-up reel 3 of the energizing cable 4 described above is integrally fixed to the guide frame 5 with a tightening means such as a bolt, and the guide frame 5 is fixed to a frame 19. . The frame 19, which is integrally provided with the guide frame 5, is connected via a shaft 22 to a truck 21 that can freely run on rails 20, and is provided so as to be tiltable by a cylinder 23. A method of using the refractory material filling apparatus of the present invention constructed as described above will be described with reference to FIGS. 2 and 3. First, as shown in FIG. 3, the ladle 27 is placed on the turntable 26 placed on the pedestal 25 of the ladle repair pit 24 with its center almost aligned;
A metal frame (core frame) 28 having an appropriate gap with the iron skin of the ladle 27 inside the ladle is fixed. Next, the cart 21 is advanced toward the ladle, stopped at a desired position, and then the electric motor 10 is driven to drive the guide roller 7a mounted on the guide frame 5 via the chain 9. , lower the rod-shaped vibrator. At this time, the remaining rotatable guide rollers 6a, 6b, and 7b rotate as the rod-shaped vibrator descends, and the descent is smooth.
In this way, the rod-shaped vibrator 1 is inserted into the gap between the iron skin of the ladle 27 and the metal frame 28 to an appropriate depth. At this time, the insertion angle of the rod-shaped vibrator 1 is finely adjusted using the cylinder 23 if necessary in order to make the insertion angle optimal for the insertion. Incidentally, when the rod-shaped vibrator 1 is raised and lowered, the current-carrying cable 4 freely expands and contracts in accordance with the raising and lowering of the rod-shaped vibrator 1 by the rotation of the take-up reel. In the above state, a sufficiently tempered amorphous refractory material is placed in the gap between the ladle 27 and the metal frame 28 where the rod-shaped vibrator is located, and the belt conveyor 2
9 starts feeding via the chute 30. On the one hand, the forward/backward axis 1 of the forward/backward movement device 11
Clamp device 13 provided at the shaft end of 2a, 12b
Fluid pressure is applied to the cylinders 15a and 15b of cylinders 15a and 13b through flexible hoses (not shown), and with reference to FIG.
a, 17b to clamp appropriate parts of the rod-shaped vibrator (excluding the vibrating part) to the clamp parts 16a, 17b.
16b, grip it firmly. By doing so, an appropriate gap is created between the rod-shaped vibrator and the guide rollers 6a and 7a. Next, in this state, fluid pressure is alternately applied to the cylinders at both ends of the advancing/retracting device 11. Thereby, the rod-shaped vibrator 1 can be moved up and down without being subjected to resistance from the drive guide roller 7a. At the same time, the vibrating body 2a at the tip of the rod-shaped vibrator is operated to apply vibration to the poured refractory material filling portion 31 while filling is carried out. After the filling of an arbitrary part is completed, the filling part is sequentially moved in the circumferential direction of the ladle 27 by rotation of the turntable 26. This filling operation may be performed continuously while rotating the turntable 26 at an appropriate speed. After completing the filling work in this way, the clamp parts 16a and 16b are opened to hold the rod-shaped vibrator by the guide rolls 6a, 6b, 7a, and 7b, and the electric motor 10 is driven to move the rod-shaped vibrator to the guide frame 5 via the chain 9. After the shaft-mounted guide roller 7a is reversed and the rod-shaped vibrator 1 is raised,
The trolley 21 is moved backward. As described above, according to the present invention, a rod-shaped vibrator with a built-in vibrating body at its tip and an advancing/retracting device that moves the rod-shaped vibrator up and down in its longitudinal direction are provided, so that the vibration applied to the refractory filling part can be reduced.
Compared to when it is operated manually, it is more uniform,
Air can be uniformly removed from the filling part.
Therefore, there are no dense or dense parts in the finished refractory wall, and corrosion resistance can be greatly improved. Furthermore, compared to manual work, the time required for construction is shortened, work efficiency is improved, and heavy muscular work on the part of the workers can be eliminated. In addition, since the rod-shaped vibrator is held by the clamp part and moved up and down, the rod-shaped vibrator can be inserted into the refractory material of the filling part accurately to the desired depth, and a guide roller is provided to guide and hold the rod-shaped vibrator so that it can be raised and lowered. Since this is provided, the rod-shaped vibrator can be quickly moved up and down over a wide range, improving work efficiency. Another advantage, when used in combination with a ladle rotating device, is that a bubble-free refractory wall can be formed around the entire circumference of the ladle in a continuous operation.

[Brief explanation of the drawing]

Fig. 1 is an overall side view of a filling construction device for monolithic refractory material according to the present invention, Fig. 2 is an enlarged view of the A-A' cross-sectional view of the clamping device in Fig. 1, and Fig. 3 is a FIG. 3 is an explanatory diagram of an embodiment using the device according to the present invention. 1... Rod-shaped vibrator, 2... Vibrating part, 2
a... Vibrating body, 3... Take-up reel, 4... Current-carrying cable, 5... Guide frame, 6a, 6b, 7a, 7
b...Guide roller, 8...Gear wheel, 9
...Chain, 10...Electric motor, 11...Advance/retreat device, 13a , 13b ...Clamp device, 15a,
15b...Cylinder, 16a, 16b...Clamp part, 17a, 17b...Cylinder rod,
19... Frame, 21... Cart, 26... Turntable, 27... Ladle, 28... Metal frame (core),
29... Belt conveyor, 30... Shoot.

Claims (1)

[Scope of utility model registration request] A frame integrally provided with a guide frame is placed on a movable trolley so as to be tiltable, and the frame is pivoted facing an appropriate part of the guide frame, so that one row is pressed against a repulsive elastic body, and the other row is pressed against a resilient body. A guide roller array is provided, one of which is connected to a drive source and clamps the rod-shaped vibrator so as to be able to move up and down, and both ends of the rod-shaped vibrator are clamped to one end of the guide frame, and the guide rollers are pressed by a repulsive elastic body. 1. A filling construction device for monolithic refractory material lining a ladle, characterized in that it is equipped with an advancing/retracting device that moves up and down by being towed by a ladle.