JPH0827140B2 - Slag scraping machine and slag processing equipment - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a slag scraping machine used for scraping off slag adhering to the inner surface of an induction furnace for melting a copper alloy or the like, and a slag treating apparatus using the slag scraping machine. is there.

[0002]

2. Description of the Related Art A large amount of slag adheres to the furnace wall and furnace bottom of an induction furnace that melts copper alloys and the like, which hinders melting work.
For this reason, conventionally, the slag was scraped off with a heat-resistant rod, the slag was separated with the rod to separate it from the molten metal, and the floated slag with a ladle-like object was manually scooped up. However, since such a series of operations is performed on a high-temperature furnace, it is dangerous and heavy labor.

[0003]

DISCLOSURE OF THE INVENTION The present invention solves the above-mentioned conventional problems and automatically removes slag that adheres to the furnace wall and the bottom of a metal melting furnace such as an induction furnace that melts a copper alloy or the like. The present invention has been completed to provide a slag scraping machine and a slag processing device that can scrape and scoop up.

[0004]

The slag scraping machine according to the first aspect of the present invention, which has been made to solve the above problems, is a trolley mounted on a trolley that can move between a position directly above the metal melting furnace and a standby position in the vicinity thereof. A turntable is provided on the turntable, and a frame that can take a vertical posture and a tilted posture is provided on the turntable.
The holder mounting box is attached to the lifting mechanism installed on this frame .
Installed between the holder mounting box and the lifting mechanism
A configuration is provided, the slag scraper bar having heat resistance capable of withstanding a temperature of the molten metal is supported on the holder mounting box, has been
Those who keep the lower end of the slag scraping rod away from the frame
It is characterized in that it can be fired in any direction . The slag processing apparatus of the second invention made to solve the above problems is provided with a rail passing directly above the metal melting furnace, and the slag of the first invention is provided on one side of the metal melting furnace on the rail. A scraping machine is arranged, and a slag gripping machine equipped with a hopper for gripping the scraped slag is arranged on the opposite side of the scraping machine.

[0005]

The present invention will be described below in more detail with reference to the embodiments shown in the drawings. FIG. 1 is a plan view showing an overall layout of a slag processing apparatus according to an embodiment of the second invention, in which 1 and 1 are metal melting furnaces such as induction furnaces for melting copper alloys and the like, and 2 are these metals. It is a rail laid so as to pass directly above the melting furnaces 1, 1. 3 is a slag scraping machine of the first invention placed at a standby position between the two metal melting furnaces 1, 1 and 4 and 4 are opposite to the slag scraping machine 3 with the metal melting furnaces 1 sandwiched therebetween. It is a slug gripper placed on the side.

First, the structure of the slag scraping machine 3 of the first invention will be described with reference to FIGS. In these figures, 5 is a carriage that can be moved on the rail 2 by a traveling motor 6, and a turntable 9 is rotatably supported on the upper surface of the carriage 5 by annular guide bearings 7 and 8. Has been done. The turntable 9 may be manually rotated, but in the embodiment, it can be rotated by a rotation motor 10 as shown in FIG.

On the upper surface of the turntable 9, there is provided a frame 12 which can be tilted about a horizontal shaft 11. The frame 12 has a structure in which the tilting angle can be freely changed by the tilting cylinder 12a between the tilted attitude shown in FIG. 2 and the vertical attitude shown in FIG. A lifting mechanism 13 such as a rodless cylinder is attached to the front surface of the frame 12, and a slider that can be lifted and lowered along the frame 12 by the lifting mechanism 13.
A holder mounting box 16 is pivotally attached to 14 via a hinge 15. Then, a slag scraping rod 17 made of a material such as graphite having heat resistance capable of withstanding the temperature of the molten metal holds its upper end in a holder 18 and then attaches the holder 18 to the holder mounting box 16 to make a slider 14 Is attached to. Of course, remove the slag scraping rod 17 from the holder.
There is no problem even if it is attached directly to the attachment box 16
Support the slag scraping rod in the holder mounting box
Is supported by the holder 18 or not.
It goes without saying that it also includes giving.

As shown in FIG. 3, the slider 14 is used in the embodiment.
Is provided with three holder mounting boxes 16, and three slag scraping rods 17 are mounted in parallel. In addition, between the bottom of the slider 14 and the bottom of the holder mounting box 16
An elastic mechanism 19 such as a pressing spring is stretched and elastically urges the lower end of the slag scraping bar 17 in a direction away from the frame 12.

Next, the structure of the slag gripper 4 will be described with reference to FIGS. The slug gripper 4 is also provided with a carriage 20 that can travel on the rails 2, and four lifting screws 22 are provided between the slug gripper 4 and the upper frame 21. These lifting screws 22 are simultaneously rotated by the lifting motor 23,
24 can be raised and lowered. As shown in FIG. 6, a turntable 25 is provided at the center of the lift table 24, and the turntable 25 is rotated by a rotation cylinder 26 at about 90 ° as shown in FIG.
Can rotate. Below the turntable 25, the hopper
27 are provided. The hopper 27 has a structure that can be opened and closed as shown in FIG. 5 by raising and lowering a central shaft 28 by an opening and closing cylinder 29.

[0010]

Next, the operation of each of the above devices will be described. When the slag adheres to the inner surface of the metal melting furnace 1, the lid on the upper surface of the furnace is opened, and the slag scraping machine 3 is moved along the rail 2 from the standby position to the position directly above the metal melting furnace 1. Then, as shown in FIG. 2, a plurality of slag scraping rods 17 are inserted into the furnace and moved up and down by a lifting mechanism 13. At this time,
If the frame 12 is inclined as shown in FIG. 2, the slag scraping rod 17 is pressed against the side wall of the furnace by the force of the repulsion mechanism 19 with an appropriate strength, and the slag attached to the side wall of the furnace. Can be scraped off. Further, since the frame 12 can be rotated on the carriage 5 by the turntable 9, the slag can be scraped off over the entire circumference of the furnace. Since the slag scraping bar 17 is preheated at the standby position, there is no risk of damage due to thermal shock even if it is inserted into the molten metal.

Next, the frame 12 is set up vertically as shown in FIG. 4, and the turntable 9 is rotated with the lower ends of the three slag scraping rods 17 in contact with the bottom of the furnace.
The bottom end of the slag scraping bar 17 of the book can scrape the bottom surface of the furnace concentrically, and scrape the slag adhering to the bottom surface of the furnace. When the number of the slag scraping bar 17 is one, it is necessary to move the slag scraping bar 17 in the radial direction.

Since the slag scraped off in this manner floats on the surface of the molten metal in the furnace, the slag scraping machine 3 is retracted to its original standby position, and the slag gripping machine 4 is moved to a position directly above the furnace. . The elevating motor 23 lowers the elevating table 24, the hopper 27 grasps the slag as shown in FIG. 5, and the slag is discharged onto the conveyor under the floor. If you rotate the turntable 25 to change the opening and closing direction of the hopper 27,
The slag can be scooped out more reliably. Thus, if the apparatus of the present invention is used, the metal melting furnace 1
It is possible to automatically scrape off the slag adhering to the inner surface of the slag and scoop it off.

In the embodiment, as shown in FIG. 1, two slag scrapers 3 and 2 are provided for two metal melting furnaces 1.
Although the base slag gripper 4 is arranged, various changes can be made in the number and layout. Further, although the rail 2 is arranged on the floor surface in the embodiment, it may be a ceiling traveling rail.

[0014]

As described in detail above, according to the slag scraping machine of the first invention, not only the side wall of the furnace but also the slag adhering to the bottom surface can be scraped automatically over the entire circumference. it can. Further, according to the slag processing device of the second aspect of the present invention, scraped off slag can be automatically scooped up, and dangerous work by man can be completely eliminated. Therefore, the present invention has an extremely great contribution to the development of industry as a slag scraping machine and a slag processing device that solve the conventional problems.

[Brief description of drawings]

FIG. 1 is a plan view showing an overall layout of a slag processing device.

FIG. 2 is a front view showing the slag scraping machine of the first invention.

FIG. 3 is a plan view of a slag scraping machine.

FIG. 4 is a front view showing a slag scraping machine.

FIG. 5 is a front view showing a slug gripper.

FIG. 6 is a front view of a main part of the slug gripper.

FIG. 7 is a plan view showing a rotation mechanism of the slug gripper.

[Explanation of symbols]

1 metal melting furnace 2 rail 3 slag scraping machine 4 slag gripping machine 5 bogie 9 turntable 12 frame 13 lifting mechanism 17 slug scraping bar 19 repulsion mechanism 27 hopper

Claims (2)

[Claims] 1. A turntable is provided on a carriage that can move between a position directly above the metal melting furnace and a standby position in the vicinity thereof, and a frame that can take a vertical posture and an inclined posture is provided on the turntable. The holder mounting box is provided on the lifting mechanism installed on the
A slag scraping rod with heat resistance that can withstand the temperature of the molten metal is attached to the holder by providing an elastic mechanism between the lifting mechanism.
Make sure that the slag scraper stick is supported by the box
A slag scraping machine characterized by being able to fire in a direction away from the frame . 2. A rail passing directly above the metal melting furnace is provided, the slag scraping machine according to claim 1 is arranged on one side of the metal melting furnace on the rail, and the other side is scraped into the furnace. The slag processing device is characterized by arranging a slag gripping machine equipped with a hopper for gripping said slag.