JPS6218960Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention mainly relates to a device for discharging molten slag floating on hot metal in a torpedo car.

The slag produced as a by-product after desulfurization and dephosphorization in the torpedo car must be discharged afterwards.
This slag is discharged by tilting the torpedo car, but when the remaining amount of slag becomes low, as shown in Fig. 1, the torpedo car 1' is tilted to some extent and floats on the hot metal 2'. At present, the molten slag 3' is scraped out by mechanically reciprocating a scraping tool 5' having a scraping plate 4' made of a piece of wood or refractory material attached to its tip. However, when using the method shown in Figure 1, the width of the scraper cannot be made wider because the opening of the torpedo car is small, and it is difficult to reach the corners of the torpedo car. For this reason, it takes a lot of time to discharge the slag, and furthermore, the discharge cannot be done satisfactorily.

The present invention relates to a slag discharge device that eliminates the above-mentioned drawbacks, and its gist is that the slag discharge device is suspended from a frame that is tiltably supported on a movable trolley, and is attached to the tip of a main rod that is tiltable and reciprocally movable together with the frame. 2
The connecting rods of the books are connected with pins, and a second connecting rod is attached to the tip of each of the two connecting rods, and the two connecting rods and the two second connecting rods are made up of four links. a central scraping rod which is pin-coupled to form a link mechanism, the pin-coupled portions of the tips of the second connecting rods are pivotally attached to the tip of the frame, and a scraper plate is connected to the tip of the main rod; Moreover, the slag discharge device is characterized in that a side scraping rod having a scraping plate connected to the tip thereof is connected to the tip of each of the two second connecting rods.

The present invention will be described in detail below with reference to FIGS. 2 and 3 showing one embodiment thereof.

In the embodiment shown in FIGS. 2 and 3, the movable truck consists of a traveling truck 1 and a traversing truck 2 mounted on it and traveling perpendicularly to the traveling truck 2. A frame 3 is mounted on the traversing truck 2. is supported. That is, a bearing 5 at the upper end of a column 4 vertically installed on the transverse truck 2 supports a frame 3 at a required midway position, and a frame tilting cylinder 6 is provided at a required position on the proximal side of the bearing. The frame can be tilted by operating the frame tilting cylinder provided therein. The main rod 7 is supported below the frame 3 so as to be suspended along the same frame.
The main rod is reciprocally movable by a cylinder 8 for advancing and retracting the main rod provided at its base end.
Connecting rods 9, 9 are pin-coupled to the tips of the main rods 7, and second connecting rods 10, 10 are pin-coupled to each of the connecting rods. The connecting rods 9, 9 and the second connecting rods 10, 10 are configured to form a link mechanism consisting of four links, and the second connecting rods 10, 10 are connected by pins. The other three pin joints of the link mechanism are movable, except for one portion which is pivotally connected to the tip of the frame 3 by a fixed pivot 11.

At the tip of the main rod 7, a central scraping rod 12 is provided extending in the axial direction of the main rod, and a scraping plate 13 is attached to the tip of the central scraping rod 12.
At the tips of the connecting rods 10, 10, side scraping rods 14, 14 are respectively extended in the axial direction of the second connecting rod, and scraping plates 15, 15 are attached to the respective tips.

In Figures 2 and 3, 16 is a torpedo car, 17
18 is a running bogie rail, 18 is a running bogie drive motor, 19 is a traversing bogie rail, 20 is a traversing bogie drive cylinder, a is hot metal, and b is molten slag.

In the device of the present invention having the above structure, the central scraping rod 12 and the side scraping rods 14, 14 are inserted into the torpedo car through the tap hole while the torpedo car 16 is tilted to some extent. In this case, the main rod 7 is pulled to the right by the cylinder 8 for advancing and retracting the main rod, that is, the connecting rods 9, 9 and the second connecting rods 10, 10 forming the link mechanism are extended. When the link mechanism is in the closed state, the side scraping bars 14, 14 are in a straight line, and the central scraping bar 1
Since it is close to both sides of 2, it can be easily inserted even through a narrow tap hole. Next, by moving the carriage 1 back and forth while adjusting the degree of tilting of the frame 3 with the frame tilting cylinder 6, and by reciprocating the main rod 7 with the main rod advancing/retreating cylinder 8, the center scraping rod 12 and the side scraping rod 12 are moved back and forth. Sticks 14, 14
can move and scrape out the molten slag b without leaving any part of the inner surface of the torpedo car 16. That is, when the main rod advance/retreat cylinder 8 is actuated to cause the main rod 7 to reciprocate, the link mechanism connected to the tip of the main rod 7 opens and closes, and the side scraping rods 14, 14 move toward the fixed pivot 1.
1 is used as a fulcrum to perform the opening and closing motions, and at the same time, by moving the entire device closer to or away from the torpedo car 1 using the traveling trolley 1, it is possible to spread the scraping board over the entire inside of the torpedo car 1.

As described above, according to the device of the present invention, even when discharging molten slag from a container such as a torpedo car that has only a narrow discharge port, the central scraping rod and the side scraping rods can be inserted together and inserted. The molten slag can be scraped out by reciprocating the main rod, which allows the side scraping rods to be opened and closed widely, and the entire device can be moved using a movable trolley, allowing slag to be scraped over a wide area. It has the effect of being easy to scrape out.

[Brief explanation of the drawing]

Figure 1 is a schematic explanatory diagram of a conventional slag discharge device.
FIG. 2 is a front view of an embodiment of the slag discharge device of the present invention, and FIG. 3 is a plan view thereof. In the diagram, 3: frame, 7: main rod, 12, 1
2: Central scraping rod, 14, 14: Side scraping rod.

Claims (1)

[Scope of utility model registration request] Two connecting rods are connected with pins to the tips of the main rod, which is suspended from a frame that is tiltably supported on a movable table, and can freely tilt and reciprocate with the frame. A second connecting rod is attached to each tip, and the two connecting rods and the two second connecting rods are connected to each other.
The connecting rods are pin-coupled to form a link mechanism consisting of four links, the pin joints between the tips of the second connecting rods are pivotally attached to the tip of the frame, and the tip of the main rod is provided with a scratch on its tip. It is characterized by having a central scraping rod with a continuous plate connected to it, and a side scraping rod having a continuous scraping plate attached to the tip of each of the two second connecting rods. Slag discharge device.