JPH0343226Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to an apparatus for automatically separating and recovering molten metal contained in slag taken out of a melting furnace for aluminum or the like.

(Prior art) Taking aluminum as an example, the slag taken out from the melting furnace still contains a considerable amount of molten metal aluminum, approximately 10%, and should be separated and recovered. If this slag is left unattended, the combustion of metal aluminum will progress and change to oxide Al ₂ O ₃ , making it difficult to separate and recover metal aluminum.

For this reason, in the past, for example, as shown in Fig. 3, slag was placed in a shallow pot-shaped bag a, and the claws of a forklift were inserted into the pockets b and b at the bottom of the bag, and the claws were moved up and down rapidly. After applying an impact to promote the separation of slag and molten metal, the claws are rotated to tilt the bag and the molten metal is poured into another bag and collected.

(Problems to be solved by the invention) In order to increase the collection rate, the above-mentioned conventional collection technology requires the bag to be held tilted for a long period of time, which requires the forklift operator to engage in the main work. = The bundling time becomes longer and the work efficiency of the forklift decreases. Additionally, during work, the operator is exposed to high-temperature gas and dust emitted from the slag, which is unfavorable from a health and safety perspective.

The present invention solves these problems of the conventional technology,
An object of the present invention is to provide a device that can automatically separate and recover molten metal from slag.

(Means, effects, and embodiments for solving the problems) In order to achieve the above object, in the present invention, a bag containing slag is placed on a bag placing table, and at that time, a claw portion integrally formed on the bag placing table is used. is inserted into the pocket at the bottom of the bag to hold the bag,
An impact applying device is connected to the bag holder to apply intermittent shocks to the bag, and a presser cover is attached to the bag holder so that it can move up and down to prevent the slag from falling and scattering in the bag during collection work. A back stand having various facilities is installed on the frame so as to be tiltable, so that the molten metal separated from the slag by impact is automatically separated and flowed out by tilting the back.

Note that if the impact is applied to the slag bag continuously in short cycles, the slag will become clogged and have the opposite effect, so it should be applied intermittently at intervals of about every 1 to 2 seconds.

In other words, the device for separating molten metal in slag of the present invention has a shallow pot shape for receiving molten slag, and has a plurality of claws inserted at the bottom in order to separate and recover molten metal contained in slag. For bags with pockets, a bag holder is tiltably supported on a frame, and an impact applying device that applies intermittent shocks is connected to the bag, and a claw part for inserting the pocket to hold the bag protrudes above the holder. The present invention is characterized in that a presser cover that presses the molten slag in the bag on the table from the upper side is attached to the table so as to be movable up and down.

Hereinafter, the present invention will be specifically explained based on examples with reference to FIGS. 1 and 2. FIG. 1 shows a partially cutaway front view of an apparatus according to an embodiment of the present invention, and FIG. 2 shows a side view thereof.

A bag holder 2 is arranged above the frame 1, and a bracket 3,
4. A tilting cylinder 7 is pivotally supported by a connecting shaft 5 and supported by a trunnion on a bracket 6 of the frame at the center of the other side, and a pin is connected to the upper end of the rod 8 by a bracket 9, so that it can be tilted by the operation of the cylinder 7. ing.

An impact applying device 10 for intermittent impact, such as an air knocker, is mounted on a bracket 11 at the lower center of the bag holder 2.
It is supported and fixed by.

On the upper surface of the bag holder 2, a pair of hooks 12, 12 are provided in a cantilevered manner, which are fixed at the rear and bent and extend forward and have a slope for insertion into a pocket.

A presser cover 13 is arranged above the bag holder 2, and a pair of guide rods 14, 14 extending downward from the rear of the presser cover 13 are attached to the back holder 2.
Cylinders 18, 18 are fitted into guides 15, 15 fixed to the back side of the bag holder and guided up and down, and a pair of brackets 16, 16 at the rear of the presser cover are attached to brackets 17, 17 fixed to the back side of the bag holder. It is connected with a pin to the upper ends of rods 19, 19, and is supported so as to be movable up and down by the operation of cylinders 18, 18.

The operation of the apparatus according to the embodiment of the present invention described above is performed as follows.

() Place the bag a shown in FIG. 3 containing the molten slag on the bag holder 2 by inserting the claws 12 into the pockets c and c at the bottom of the bag.

() Rods 19, 19 of cylinders 18, 18
The presser cover 13 is lowered by pressing the presser cover so that the molten slag in the bag a is pressed down by the presser cover.

() The impact applying device 10 is activated to apply intermittent impact to the molten slag in the bag for a certain period of time to promote separation of the molten metal in the slag from the slag.

() The impact applying device 10 is stopped, and the tilting cylinder 7 is operated to advance its rod 8, thereby tilting the table 2 and the bag a.

() When a proper tilting angle is reached, the cylinder 7 is stopped and maintained in a tilted state for a predetermined period of time to pour out the molten metal in the slag bag and collect the molten metal by receiving it in another bag.

(Effects of the invention) The apparatus for separating molten metal in slag according to the invention provides the following effects.

() Separation efficiency is good because intermittent shocks to promote separation can be applied automatically for a desired period of time under certain conditions suitable for separation.

() The time that workers are bundled into this work is shortened.

() It becomes possible to hold the bag in a tilted state for a long time, which improves the recovery rate of molten metal from about 50% to about 70%.

() The time that workers are exposed to the high heat, gas, and dust emanating from the slag is significantly reduced, resulting in improvements in safety and health.

() It is possible to reduce the falling and scattering of slag from the slag bag during impact application and tilting operations.

[Brief explanation of drawings]

FIG. 1 is a partially cutaway front view of the device according to the present invention;
FIG. 2 is a side view thereof, and FIG. 3 is a longitudinal sectional front view of the slag bag. 1... Frame, 2... Back stand, 3, 4, 6,
9, 11, 16, 17...Bracket, 5...Connection shaft, 7...Tilt cylinder, 8...Rod, 1
0... Impact applying device, 12... Claw portion, 13... Presser cover, 14... Guide rod, 15... Guide, 18... Cylinder, 19... Rod, a...
Slag bag, b, c... Pocket for inserting nails.

Claims (1)

[Scope of utility model registration request] In order to separate and recover the molten metal contained in the molten slag, the bag is shaped like a shallow pot and has a plurality of pockets for inserting claws at the bottom to receive the molten slag. A shock-applying device that applies intermittent shocks is connected to the stand, and
A molten metal bag is characterized in that a claw part for inserting into a pocket for holding a bag is formed protrudingly on the holder, and a presser cover for pressing the molten slag in the bag on the holder from the upper side is attached to the holder so as to be movable up and down. Separation device for molten metal in slag.