JPS62127416A - Method and apparatus for raking out slag lump in torpedo car - Google Patents

Abstract

PURPOSE:To discharge floating slag lump while raking out simultaneously with molten pig, by moving slag lump raking out apparatus in accordance with turning of torpedo car, at discharging a molten pig from torpedo car contg. floating slag lumps into molten pig ladle. CONSTITUTION:When the torpedo car 2 loaded with the molten pig 60 reaches, a running frame 3 is moved along a running rail 10, thereunder, a gondola 4 is laterally moved to center of the frame 3. Next, a turning frame 6 is turned to the car 2, and a gooze neck arm 7 is positioned just above a molten pig discharging hole 2A. When a molten pig vessel 2B of the car 2 is turned and the pig 60 is discharged, an elevator frame 5 is lowered so that a claw body 45 at top end of the arm 7 is positioned on a slag lump 67. Next, the body 45 is entered in the lump 67 by downwardly turning of the arm 7, the gondola 4 is laterally moved while receding from the car 2, and the frame 5 is lowered following to increase of turning angle of the vessel 2B. In this way, the lumps 67 are raked out and thrown into under molten pig ladle together with the pig 60.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a method and device for scraping out slag lumps in a torpedo car, and more specifically, when discharging hot metal in a torpedo car to a hot metal pot, slag floating in the hot metal is removed. The present invention relates to a method and apparatus for simultaneously scraping out lumps.

[Prior art and its problems]

The hot metal discharged from the blast furnace is transported by torpedo cars to a steelmaking factory with a converter. When hot metal is immersed in the torpedo car, blast furnace slag also enters at the same time.
I-Slag lumps floating in the bead car. When one volume of pig iron is discharged from a torpedo car, the slag is also released, but before being introduced into the steelmaking furnace, the slag floating in the hot metal ladle is scraped up and removed using a slag machine.

By the way, when discharging hot metal from a torpedo car to a hot metal ladle, floating slag lumps may collect or adhere to the dispensing port, obstructing the discharging of the hot metal or reducing the flow rate, resulting in work stagnation. There are many. It is sufficient if the slag lumps can be removed or taken out during the discharging process using the above-mentioned slag machine, but it is possible to remove the slag lumps while discharging the molten slag. However, since T8 pig iron is discharged, the position of the discharge port is displaced, making scraping work difficult, and generally the hot metal and slag are discharged while being left to their natural flow. Therefore, when the hot metal is not discharged from the torpedo car to the hot metal ladle, some slag lumps remain in the hot metal container, and the slabs block the discharge as described above and obstruct the discharge of the hot metal. Furthermore, if there is slag remaining in the towing car, there is a problem that the actual volume becomes smaller and the amount of hot metal that can be transported next time is reduced. By the way, Torpedo car
Discharging the remaining slag lumps is a separate operation from discharging the hot metal, and as the slag lumps solidify, the removal rate of the slag lumps during discharge becomes low, resulting in the decrease in the actual volume mentioned above. I'm inviting you.

[Purpose of the invention]

The present invention has been made to solve the above-mentioned problems, and its purpose is to remotely dispose of 18 pig irons from a torpedo car to a hot metal pot. By discharging the slag lumps at the same time as the hot metal, it is possible to prevent the flow of hot metal from flowing out, or to reduce the molten metal transport in the torpedo car due to the decrease in slag lumps: cooling 11;
Slag lumps t'f that can be prevented! An object of the present invention is to provide a method and a device for dispensing.

[Structure of the invention] The features of the present invention will be explained with reference to FIG.

There is a gondola 4 running horizontally under the running frame 3, and an elevating frame 5 is attached to it so as to be able to move up and down.

A rotating frame 6 that rotates with respect to the stomach de T frame 5
is attached, and a lamp 1 with a claw body 45 and a straight arm 7 are mounted on it.
A torpedo car is installed to remove the slag lumps 67 floating in the upper bead car 2 as the molten yc 60 is discharged.
Move the slag lump scraping device l in accordance with the tilting of step 2,
The molten pig iron 60 can be scraped out at the same time as being discharged.

[Function] When the torpedo car 2 loaded with hot metal 60 arrives, the traveling frame 3 moves along the traveling rail 10, and the gondola 5 is moved to the center of the traveling frame 3 under the traveling frame 3. The rotating frame 6 is rotated toward the torpedo car 2, and the traveling frame 3 is moved again as necessary so that the swinging arm 7 is directly above the payout port 2A of /8yc60. When the hot metal container 2B with the torpedo force -2 is tilted and the molten metal 60 is discharged, if necessary, after moving the gondola 4 slightly laterally, the claw body 45 attached to the tip of the swinging arm 7 moves the slag mass 67. 1-, the elevating frame 5 is lowered.

By rotating the swinging arm 7 downward, the claw body 4
5 is placed in the slag mass 60, and the gondola 4 is moved away from the torpedo car 2 in order to scrape it out from the dispensing port 2A. To continuously discharge molten metal 60/8
Since the tilting angle of the pig iron container 2B is gradually increased, the elevating frame 5 is lowered relative to the gondola 4 so as to follow this. The slag mass 67 is scraped out in the above-described procedure and is thrown into the molten pig iron U5 below together with the molten pig iron 60.

[Example] Hereinafter, the present invention will be explained in detail based on examples thereof.

FIG. 1 is an overall front view of the slag lump scraping device 1 in the torpedo car, and in this example, it is located at the center of the ITjIt road reached by the torpedo cars 2, 2 on the left and right, respectively. This slag lump scraping device 1 consists of a gondola 4 that hangs down from a running frame 3 and moves horizontally, an elevating frame 5 that moves up and down with respect to the gondola 4, and a rotating frame 6 that rotates horizontally with respect to the elevating frame 5. and its rotating frame 6
Its main component is a swinging arm 7 that moves up and down relative to the swing arm 7.

Two traveling saddles 8°8 are integrally attached to the upper surface of the traveling frame 3 by welding or the like, and the traveling frame 3 is attached to the traveling rails 10 with wheels 9 supported inside the traveling saddles 8.
It is possible to move forward from the position shown by the broken line in FIG. 2 to the hot metal discharging position shown by the solid line. The traveling saddle 8
is equipped with all of the devices described below, and the desired operations can be remotely controlled by each drive machine. The traveling frame 3 under the traveling saddle 8 is the third
As shown in the figure, the traversing wheels 1 shown in FIG.
2 moves along a transverse rail 13 attached to the lower surface of the traveling frame 3. As a result, the gondola 4 can traverse left and right as shown in FIG.

Such a gondola 4 is equipped with a lifting drive machine 14 shown in FIG.
There is an elevating frame 5 that moves up and down, and its elevating mechanism consists of an upper shaft 16 supported on the suspension frame 4A at the upper part of the gondola 4 by bearings 15, 15, and sprockets 17 and 17 fixedly attached to the upper shaft 16. Bearing 18
．． A lower shaft 19 is supported by a lower shaft 18 on the lower part 4B of the gondola 4, and a sprocket 20 is fixed thereto.
20, and a chain 21.20, which is stretched across both sprockets 17 and 20 and has both ends fixed to the upper and lower surfaces of the lifting frame 5.
It consists of 21. In addition, as shown in FIG. 6, the gondola 4 has four bosses 22 and a guide post 23.
The lifting frame 5 has three guide rollers 24 for the guide post 238, and two guide rollers 25 for the guide post 23B.
It is guided by a total of 20 rollers on its upper and lower surfaces, ensuring maintenance of its vertical position and smooth movement.

Such an elevating frame 5 has a rotating frame 6 that rotates horizontally with respect to the elevating frame 5, and a rotating mechanism for this is attached to the lower surface of the elevating frame 5 shown in FIGS. 5 and 6. A swing drive machine 26, a swing gear 28 that rotates in a horizontal plane as the rod 27 advances and retreats, a gear 29 that meshes with this, a sprocket 30 that is attached coaxially with the gear 29, and a swing shaft 3 shown in FIG.
chain 3 fixed to sprocket 1 and stretched across sprocket 30
It consists of a sprocket 33 rotated by 2. As shown in FIG. 8, the pivot shaft 31 is vertically supported by bearings 34 and 35 in the lifting frame 5, and its upper end is fixed to the rear end of the pivot frame 6. The gear 29 and the sprocket 30 are mounted on a bearing 3 on the lifting frame 5.
It is attached to a shaft 38 supported by 6, 37. Also, sprocket 30. Chain 3 strung on 3j
In order to prevent loosening of the sprockets 2, the sprockets 4 are mounted on a pair of movable shafts 39, 39 as shown in FIG.
A tensioner 41 with a tension of 0.40 is provided.

As shown in FIG. 8, the above-described swinging frame 6 is provided with a swinging arm 7 that moves up and down with respect to the swinging frame 6 and has a claw body 45 at its tip.

The swing mechanism includes a bearing 46 at the rear end of the swing frame 6.
A clevis 49 connects a rod 48 that pushes and pulls the vicinity of the base of the oscillating arm 7 to the oscillating drive unit 47 supported on the oscillating arm 7.
The swing arm 7 has its base connected to the swing frame 6.
is rotatably supported by a bottle 50 at the tip thereof.

Note that the above-mentioned traverse drive machine 11, lifting drive machine 14, swing drive machine 26, and oscillation drive machine 47 may be replaced by a drive device such as a hydraulic cylinder, an air cylinder, an electric motor, or a power cylinder. The elevating frame 5, the rotating frame 6, the oscillating arm 7, etc. may have a flexible arm structure that behaves like a robot.

According to the slag lump scraping device 1 having such a configuration, slag can be scraped out smoothly as described below.

As shown in FIG. 10, when the torpedo car 2 loaded with hot metal 60 moves on the track 61 and arrives, an operator 62 scrapes out the slag lumps by remote control while visually checking from the ceiling where the operation panel 63 is located. The device 1 is moved along the traveling rail 10. By reducing the cylinder loft 11a (see FIG. 4) of the traverse drive machine 11, the gondola 4 that is biased to one side as shown in FIGS. That is, when the cylinder rod lla is reduced, the hanging frame 4A, which is moved via the clevis 64 and the bracket 65 shown in FIG.
(see figure)] to move on the transverse rail 13. At this time, the elevating frame is raised to the highest position, and the rotating frame 6 is trying to discharge the hot metal 60 from the torpedo car 2a.
11(d) by the above-mentioned turning mechanism.
It is rotated like this. That is, the swing drive machine 2 in FIG.
6 is driven, thereby pushing and pulling the rod 27, and the swing gear 28 rotates around the shaft 66 in accordance with the direction of movement, and the accompanying rotation of the gear 29 rotates the sprocket 30° 33 shown in FIG. and the chain 32 rotate the pivot shaft 31.

Then, a rotating frame 6 fixed to the one-way rotating shaft 31
is rotated horizontally by the desired amount.

Next, the traveling frame 3 is moved again as necessary so that the swinging arm 7 is directly above the discharging port 2A of the hot metal 60 (see FIG. 11(e)).The hot metal container 2B of the towing car 2 When the gondola 4 is tilted as shown in FIG. 12(a) and the molten pig iron 60 is discharged, the gondola 4 is moved backward slightly if necessary, and then the claw body 45 attached to the tip of the oscillating arm 7 is moved. so that it is on top of the slag lump 67,
'The J11 descending frame 3 is lowered as shown in FIG. 12(b). This is the elevating drive shown in Figure 5>') + Mechanism・1
uJ force car h / fu1. ! This is done by the vertical movement of the chain 21, which is suspended by 20.174 sprockets. 8th Lla's 1-head, 4-seater, 3 aircraft, 17
When the swinging arm 7 is rotated downward by extending, the claw body 45 is inserted into the slag mass 67 as shown in FIG. 12(C). The gondola 4 moves sideways from the topedo car 2a in order to scrape it out from the payout port 2A.
1 [see FIG. 12(d)]. In order to continuously discharge the hot metal 60, the tilting angle of the hot metal container 2B is increased by 14' (
Therefore, the elevating frame 5 is lowered relative to the gondola 4 to follow it (see FIG. 12(e)).

The slag mass 67 is spun out in the above-described procedure and thrown into the hot metal ladle 69 shown in FIG. 10, together with the melt wash 60. The slag lump in the hot metal ladle 69 is separately scraped out by a slag machine or the like, and only the hot metal is charged into a converter or the like to perform steelmaking work.

〔Effect of the invention〕

As described above in detail, the present invention has an elevating frame attached to a gondola running horizontally under the running frame, a rotating frame attached to the elevating frame, and a swinging frame equipped with a claw body for scraping out slag lumps. Since the slag lumps floating in the hot metal can be scraped out and discharged together with the hot metal, the outflow of the hot metal can be prevented and the internal volume of the torpedo car can be prevented from being reduced. The work of scraping out the slag lumps is accomplished by remote control in all directions, making the work extremely safe, and by simultaneously discharging the hot metal and scraping out the slag lumps, work efficiency is improved. In addition, conventionally, when discharging slag lumps from a torpedo car, it was performed as a separate operation from discharging hot metal, but according to the present invention, the two operations are performed at the same time, so that the slag lumps in the torpedo car may solidify. The removal rate of slag lumps can be greatly improved. Furthermore, even if the torpedo car has two tracks, it can be operated in accordance with each track by changing the direction of the rotating frame.

[Brief explanation of drawings]

FIG. 1 is a general schematic front view of the slag lump scraping device in a torpedo car of the present invention, FIG. 2 is a view taken along the line N in FIG. 1,
Figure 3 is a view taken along the line m-m in Figure 2, and Figure 4 is a view of I in Figure 2.
V-IV line arrow view, Figure 5 is a V-V line arrow view of Figure 4,
Fig. 6 is a view taken along the line Vl-Vl in Fig. 5, Fig. 7 is an enlarged view of the vicinity of the elevating frame, Fig. 8 is an enlarged view of the vicinity of the revolving frame and swing arm, and Fig. 9 is a view of Fig. 7. IX-IX line arrow view Figure 10 is an explanatory diagram of the overall operation when the slag lump scraping device is in operation, Figures 11 (a) to (e) are explanatory diagrams of the procedure for moving this device to the torpedo car, Figure 12(a)~
(e) is an explanatory diagram of the procedure for scraping out slag lumps using this device. 1 - Slag lump scraping device, 2 - Torpedo car, 3 - # row frame, 4 - Gondola, 5 Elevating frame, 6 - Swivel frame, 7 - Oscillating frame, 45 - Claw body, 6〇 - Hot metal, 6 Foot slag lump . Figure 6 Figure 7 Figure 11 (a) Figure W11 (C) Figure 12 (b) Figure 12 (d) Figure 12 (e) B42B

Claims (2)

[Claims] (1) When discharging hot metal from a torpedo car with floating slag lumps into a hot metal pot, the slag lump scraping device is moved in accordance with the tilting of the torpedo car as the hot metal is discharged, and the slag lump scraping device is moved at the same time as the hot metal is discharged. A method for scraping out slag lumps in a torpedo car, characterized in that the slag lumps are also scraped out and discharged by a removal device. (2) An elevating frame is attached to the gondola running horizontally under the traveling frame so that it can move up and down, and a revolving frame that rotates relative to the elevating frame is attached, and is equipped with a claw body that scrapes out slag lumps floating inside the torpedo car. A device for scraping out slag lumps in a torpedo car, characterized in that a swinging arm is installed on the revolving frame.