JPS597912B2 - Hot repair equipment for molten metal containers - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a hot repair device for the lining of a molten metal holding container, and in particular, for repairing significant erosion damage that has occurred in a small area of the refractory lining of the container while still in the hot state. The purpose is to extend the life of the container.

The inner surface of the molten metal holding container is usually lined with a shaped or unshaped refractory to give the container durability against molten metal, but depending on the frequency of use, the lining refractory may melt or wear out. Since the progression of this process is unavoidable, efforts are being made to extend the useful life of containers by performing intermediate repairs.

However, the refractory lining of a container does not suffer uniformly throughout the refractory, and usually very small parts are more severely damaged than other parts.

For example, depending on the type of container, there is a tendency for the slug gun line and the melt gun line to be easily damaged by melting.

Therefore, if you continue to use it as it is, the damage will progress at an accelerated pace, and even if the lining in that area is damaged by one piece, the other parts may not reach even half of the damage. .

Previously, intermediate repairs in such cases were done by repairing the side walls of the lining.
Depending on the degree of erosion, both the bottom and the bottom are generally washed using a wall-cut method.

The sacrificial wall method is a method in which when a brick has melted to a certain thickness, new bricks are stacked on top of it, but since this method is a manual bricklaying method, once the container has been cooled and repaired, it is not necessary to stack new bricks on top of it. Since heat and drying are required, there is a waste of labor and energy when cooling and heating the container.

Under these circumstances, various methods have recently been proposed in terms of both materials and construction methods, but hot repair is still not fully effective due to various restrictions.

For example, hot repairs involve spraying refractories onto the repaired area;
There are methods such as pouring refractories into a frame placed in the wall repair area, but as a repair method that requires relatively thick parts in a small area, the former has problems with the thickness of the repair layer, and the latter has problems with the filling pressure.

In view of the above-mentioned problems of the prior art, the present invention is designed to remove a particularly severely melted portion of the lining of a molten metal holding container while the container remains hot without being cooled. The present invention provides a hot repair device for filling an amorphous plastic refractory with a sufficient thickness.

The apparatus of the present invention includes a repair machine that repairs a molten metal holding container by filling a repair material into a damaged part of the lining that needs repair;
It consists of a turntable that is provided adjacent to this and is mounted and rotated in order to set the container requiring repair at a predetermined position.

The repair machine includes a cooling-protected crimping mechanism for crimping and filling a plastic repair material into a damaged part of a container that requires repair, and a cooling-protected cylinder having a hollow opening for supplying the repair material to the position of the crimping mechanism. an elevating frame having a shape of a shape, an elevating and retracting frame having a mechanism capable of moving forward and backward and freely moving up and down for setting the crimping mechanism at a predetermined repair position via the elevating frame; It consists of a material supply mechanism that feeds the material into the hollow opening of the lifting frame, and a fixed stand that supports the rotary table on which all the above mechanisms and frames are mounted and whose position in the lateral direction relative to the container is adjusted. Sleeping.

The configuration of the apparatus of the present invention will be explained in detail based on the drawings showing preferred embodiments.

FIG. 1 shows a turntable 1 equipped with a rotating roller 2.
Equipped with a molten metal holding container L that requires repair, and a rotary drive motor 3
(Figure 2) is a front view of the entire repair device including the turntable 1 when the turntable 1 is rotated and the eroded part of the lining that requires repair is aligned with the repair machine. FIG. 2 is a side view of FIG. 1;

3 is a plan view of the repair machine, FIG. 4 is a side view of FIG. 3, and FIG. 5 is a front view of FIG. 4.

As shown in FIGS. 3 to 5 of the above drawings, a stand 5 is installed on the deck 4 to support and fix the repair machine.

A bearing 6 is arranged on the stand 5, and a shaft 8 of a rotary table T is fitted therein.

The rotary table 7 supports a forward and backward frame 12 via rollers 11, and is equipped with a drive motor 9 and a pinion 10 for moving the forward and backward frame 12 forward and backward.

The forward and backward frame 12 includes a rack 13 that engages with the pinion shaft 10, a cylinder 14 that supplies repair material 24, and a motor 15 that drives the lifting frame 18.
A guide roller 19 is provided to support and guide the drive shaft 16, pinion 17, and lifting frame 18.

The elevating frame 18 has a double structure and is water-cooled or air-cooled so that it can be cooled and endure hot repairs.
A rank 20 that engages the pinion 1T is fixedly provided on the side surface of the shaft.

Further, an opening is provided on the side of the lifting frame 18 to which the repair material 24 is supplied, and when the repair material 24 is pushed through the opening by the cylinder 14 into the hollow part of the inner tube of the double structure, the lower end of the lifting frame is caused by its own weight. It is designed to fall to the filling part.

The lower end of the lifting frame 1B is equipped with a water-cooled or air-cooled and protected repair material filling means similar to the lifting frame 18, and the plastic refractory repair material 24 cylinder 21 that has reached the filling portion is used to fill the container lining. Push forward,
The rammer 22 is driven to fill and adhere tightly to the melted portion of the container lining via the molding rasp 25.

FIG. 6 is a detailed drawing of the repair material filling means, which includes a cylinder 21 for pushing out the repair material, and a cylinder 21 connected thereto.
Rammer 22 for filling and guide 2 that supports it
3 and a molded wrapper 25.

Next, other embodiments will be described.

In the apparatus of the above embodiment, as a means for supplying the repair material 24 to the filling position, the cut repair material 24 of a predetermined size is water-cooled one by one in a double system by a small cylinder mechanism 114 installed on the forward/backward frame 12. Alternatively, it is delivered to the filling section by falling freely within the hollow inner tube from the opening of the air-cooled lifting frame 18.

On the other hand, in this embodiment, the repair material 24 fed through the opening of the lifting frame 18 by the cylinder mechanism 14 on the advancing/retracting frame 12 is placed on a finned conveyor 34 as shown in FIGS. 8 and 9. It is then sent to the filling section at the bottom, and is pressed against the repaired area by the cylinder 33 via the forming wrapper 25 to be repaired.

Figure T is a side view showing the entire repair machine of this embodiment,
FIG. 8 is an explanatory side view of the elevating frame, and FIG. 9 is a front view of FIG. 8.

In FIGS. 8 and 9, the lifting frame 18 is equipped with a motor 37 for driving a repair material supply device, an upper roller 36a, and a lower roller 36b inside the inner tube, and rollers 36a and 36b are provided as fulcrums in the inner tube of the lifting frame 1B. A conveyor with fins 34 is installed as a conveyor.

Repair refractory material 2 pushed out by cylinder 14
4U is placed on the fin 35 of the conveyor 34 in the inner pipe, and the motor 3T is driven to send it sequentially to the lower part and deliver it to the repair material filling section.

The repair material 24 delivered to the filling part is pressed against the repair area by the cylinder mechanism 33 to perform the repair work.

In the above embodiment, a rank and pinion mechanism was used to drive each of the forward/backward frame 12 and the elevating/lowering frame 18, but it goes without saying that other commonly used mechanisms may also be used. In the example, the seventh
As shown in the figure, the forward and backward frames are driven by a cylinder mechanism 31, and the lifting and lowering frames are operated by a winch 32.
This is an example.

Next, the work of repairing the lining of a molten metal container, for example a pot, using the apparatus of the present invention will be described with reference to the above embodiment. First, the pot to be repaired is mounted on the turntable 1, and the The repaired part of the pan lining is rotated to the repair machine position by the motor 3 and stopped.

On the other hand, a prismatic repair material 24 cut to a predetermined thickness is stored in a storage container on the advance/retreat frame 12 in advance, and after the pot is brought in, the filling means of the repair machine is operated to fill the lining. The drive motors 9 and 15 are operated and set at a predetermined position toward the repaired part, and the cylinder 14 is driven to pass the cut repair material 24 through the opening of the lifting frame 18 and through the hollow part. Drop it into the filling part and fill the cylinder 21.
Push the rammer 22 forward toward the area requiring repair.
Then, it is filled through the forming wrapper 25.

Repeat this operation as many times as necessary, and once the specified amount of filling has been completed in the area requiring repair, turn the turntable 1 to change the position of the pot, and proceed to the next area requiring repair. Move and go.

Note that the repair material filled in the damaged area is dried naturally in a very short period of time because the temperature of the pot is in a hot state of about 600 to 800°C, and the repair material can be reused.

Once the repair work is completed, the lifting frame is raised and the pot is taken off the turntable and moved to a predetermined position in preparation for loading the next pot that needs repair.

As explained above, with the apparatus of the present invention, there is no need to go through the steps of cooling the container, repairing, and drying at elevated temperatures during repair, and immediate repair and drying is possible, which shortens repair time, saves energy, and has the advantage of reducing the number of repair personnel. It requires less than half the number of people (1 to 2 people) compared to the conventional 3 to 4 people, and since the crimping mechanism and lifting frame are protected by cooling, it can withstand use in hot conditions. Furthermore, coarse and fine adjustments can be made by using the rotating table to adjust the lateral position and the forward/backward frame to adjust the forward/backward/up/down position, so the crimping mechanism can be quickly and accurately applied to any part of the container that needs repair. It has remarkable effects such as being able to align the parts, and since the crimping mechanism presses and fills the plastic repair material, it can be repaired firmly with sufficient thickness.

In this way, partial repairs can be easily made in a hot state, which not only extends the life of the container, which means it can be used more frequently, and reduces the unit consumption of bricks, but also shortens repair time and saves energy as mentioned above. It can be said that this is an excellent invention that has great effects such as labor saving.

[Brief explanation of the drawing]

Figure 1 is a front view of the entire repair device, Figure 2 is a side view of Figure 1, Figure 3 is a plan view of the repair machine, Figure 4 is a side view of Figure 3, Figure 5 is Figure 4. 6 is an explanatory diagram of the filling means, FIG. 7 is a side view of another embodiment of the repair machine, and FIG. 8 is an explanatory diagram of the filling means.
9 is a front view of FIG. 8. L... Molten metal holding container, 1... Turntable,
2... Roller, 3... Rotation drive motor, 4... Deck, 5... Stand, 6... Bearing, 7...
- Rotating table, 8... Rotating table shaft, 9... Forward/backward drive motor, 10... Pinion, 11... Support roller, 1
2... forward/backward frame, 13... rank, 14...
... Cylinder, 15... Lifting drive motor, 16...
Drive shaft, 17...Pinny-A-7, 18...Elevating frame, 19...Guide roller, 20...Rank,
21... Cylinder, 22... Rammer, 23...
Guide, 24... Repair material, 25... Molded ramper,
31...Cylinder, 32...Winch, 33...
Cylinder, 34... Conveyor, 35... Scolding, 36a
, 36b...Roller, 31... Repair material supply device drive motor, 38... Guide rail.

Claims (1)

[Scope of Claims] 1. A hot repair device for repairing a melted part of the lining of a molten metal container, which is a cold-protected crimp protection device that crimp-fills a plastic repair material into the melted part of the container that requires repair. a cooling-protected cylindrical lifting frame having a hollow opening for supplying the repair material to the position of the crimping mechanism; and a cooling-protected cylindrical lifting frame for setting the crimping mechanism into the repair position via the lifting frame. A forward/backward frame equipped with a forward/backward and vertically movable mechanism, a material supply mechanism for supplying the repair material to the hollow space opening of the lift frame on the forward/backward frame, and all of the above-mentioned mechanisms and frames. A repair machine comprising a turntable for adjusting the position in the lateral direction with respect to the container, a fixed stud supporting the turntable, and a molten metal requiring repair installed near the repair machine. A hot repair device for molten metal containers, consisting of a turntable on which the container is mounted. 2. As a means for supplying the plastic repair material to the crimp filling position, a cylinder mechanism is provided on the advance/retreat frame, and a conveyor with fins in the inner pipe of the master elevating frame is provided. Hot repair equipment for molten metal containers.