SU984669A1 - Apparatus for pouring metal - Google Patents

Description

(54) DEVICE FOR SPLITING METAL,

one

The invention relates to ferrous and non-ferrous metallurgy, specifically to devices for casting metal and steel in foundries and foundries.

A casting ladle of the stopper type in the shape of a truncated cone is known, from which metal is poured from below through a hole in the bottom by mechanically opening the pouring hole when lifting stopper 1.

The disadvantage of this device is associated with the mechanical overlapping of the casting orifice, which leads to unstoppable emergency casting.

It is also known to create a kettle-type device consisting of a traverse, a ladle and a drain hose, with the use of which the metal is poured from above by tilting the ladle 2.

A disadvantage of this device is the horizontal displacement of the jet of the metal being poured when the bucket is tilted, which makes it difficult for the metal to be directed into the receiving device, for example, to the center when siphon is cast.

Closest to the proposed technical solution is a device consisting of a traverse, a ladle and a drain

a sock, the use of which allows to significantly reduce the horizontal displacement of the jet of the metal being poured out by performing a drain sock along a certain radius and aligning its center with

5 axis of rotation of the bucket 3.

A significant disadvantage of this device is that the axis of rotation of the bucket, which coincides with the center of the radius of the drain nose, does not coincide with the center of gravity of the bucket's body. The tilting of the bucket during casting makes it necessary to lift it vertically along with the metal to be cast, which makes it impossible to use such a design for heavy-duty buckets. For example, for a bucket

15 250 tons of application of the known construction is associated with raising it to a height of more than 4 m. The aim of the invention is to prevent the bucket from being lifted vertically and the metal jet is displaced horizontally during its casting.

The goal is achieved by the fact that in a device for metal casting, containing a traverse, a drum bucket with a hole for metal discharge and a drain curved chute made in length

in an arc centered on the axis of rotation of the bucket, the center of the arc of the curvilinear drainage chute is aligned with the center of gravity of the bucket, and the device is equipped with an additional curvilinear receiving chute closed on the traverse and concentrically located under the drainage chute, while the center of its curvature is combined with the center of rotation KOBHia, and the lower end of the receiving chute forms a vertical channel of the pouring cup.

FIG. 1 schematically shows the proposed device; in fig. 2 - section aa and pa of fig. one; on . 3 - device at the time of metal casting.

The device consists of a casting bucket 1, a coaster on the hook 2 of an overhead crane with 11 threshing traverse 3, a receiving chute 4 and a mechanized drive 5 for rotating the bucket 1. The bucket 1, dragged in the shape of a truncated drum and balanced about axis 6, is equipped with a spout 7 for draining slag, a hole 8 for slang metal and a drain chute 9, made but an arc with the center on the axis 6 of rotation KOBHia 1 and fixedly mounted on its cylindrical upper deck 10. Traverse 3 keeps the bucket from free rotation by means of worm gear 11, fixedly mounted on the shaft 6 and the worm gear 12 fixed to the cross member 3 rotatably on the drive 5. A drainage gutter 9 concentrically ogibaets receiving gutter body 4 fixed to the cross member

3 and provided with a vertical channel 13 of the pouring nozzle 14.

The device works as follows.

After the steel is released from the furnace, the overhead crane takes the casting ladle 1 and sets it over the mold or the center one. The metal is cast by turning on the drive unit 5 of rotation of the bucket 1 by means of a worm gear 11, 12. In this case, the bucket I rotates about the axis 6 so that the hole 8 descends below the level of the liquid metal, resulting in the metal along the discharge chute 9, the receiving chute

4 and the casting channel 13 enters the mold. After her nano-nosy means

the drive b of the screw pair reversing the bucket I bucket I in such a way that the drain hole 8 rises above the level of the liquid metal and its casting stops.

Application of the proposed device

provides once; 1ivku metal without mekhanicheskiy overlap the drain of the hole, which excludes emergency casting, high pressure jet and blow it on the bottom of the tank. The tilt of the bucket is not accompanied by a change in the position of the center of gravity, which allows the use of the simplest drives for heavy-duty buckets. The device makes it possible to eliminate the horizontal displacement of the metal jet during its casting and to ensure the exact direction of the metal to the receiving devices, for example, to the center one during siphon casting.

Claims (3)

Invention Formula A metal casting device comprising a traverse, a drum bucket with a hole for discharging metal and a drain curved chute made in 1 in an arc with a center on the axis of rotation of the chamber, in order to prevent vertical raising of the bucket and horizontal Mixing the metal stream during casting, the center of the arc is curvilinear1 on the drain gutter is aligned with the center of gravity bucket, and the device is equipped with an additional curved receiving chute. fixed on the traverse and concentrically located under the same drain; one, the center of its curvature is aligned with the center of rotation of the bucket, and the lower end receiving trough forms a vertical channel of the nozzle. Sources of information taken into account during the examination 1: V. Battismansky. Steel casting, Higher School, 1977, p. 75 2. USSR author's certificate number 74978, cl. In 22 D 41/00, 1940. 3. USSR author's certificate number 158402, cl. In 22 D 41/00, 1962. fig I