SU1210966A1 - Machine for supplying pulverulent materials to ingot mould - Google Patents

Description

The invention relates to metallurgy, in particular, to casting steel into molds from above and can 6EjTb used to supply heat insulation materials, for example, lunkerite, exothermic mixtures, to the mold before filling it. metal ,,

The purpose of the invention is to reduce the uniformity of distribution of nopouJKoo6-different materials.

FIG. 1 shows a mold for feeding powdered materials into a mold, side view; in FIG. 2, the same plan view ;; FIG. 3 is a section A-A in FIG. 2; Fig, 4 - tail part of the scraper conveyor, axonometrics.

The machine for feeding powdered materials into the mold consists of frame 1, hopper 2 with gate 3, scraper conveyor 4, rotation drive of conveyor 5, movement mechanism 6 and support rollers 7o The conveyor bottom 8 has a triangular-shaped hole 9 in the tail part of the conveyor.

The machine works as follows

The comfort of powdered material, for example, lunker, is loaded into the hopper 2, fixed on the frame 1 of the machine, with the open gate 3, which is only needed to repair the machine when the hopper is full; the material gets onto the scraper conveyor 4. By turning on the mechanism of rotation of the conveyor 5, the latter rotates into the working position with the tail part aligned with the holes 9 above the mold.

If it is necessary to lash the meta, lla mirrors in the mold, including a scraper conveyor 4 and the powdered material is transported by scrapers along the bottom 8 of the conveyor belt. When approaching the triangular holes 9, the material begins to spill through them.

As a rule, the applied powder insulation has an angle of repose of 45-50.

When material is poured into a triangular-shaped hole at an angle of repose on a metal mirror, a slide is made of material

the same height, the tops of which coincide with the direction of the long sides of the triangular-shaped holes, and on the non-passage bottom of the c.

a trapezoid-shaped tail section of the conveyor remains a material prism.

When moving, the conveyor scrapers, the material on the bottom, form a slide in front as a result of material being lifted up along the scraper, since the coefficient of friction of the material on the metal of the scraper is about 2 times lower than the coefficient of internal friction of the material. In addition, the material scattering occurs at an angle smaller than the angle of repose of the material in front of the scraper.

Getting into the holes of the bottom of the conveyor, the number of which, based on the size of the eve of the used molds, should be at least two, the material will be requested, and at the beginning of the triangular holes of the material, more and a slide on the mirror of the metal Bbmie will be removed; the height of the slide gradually decreases towards the base of the triangular holes; tops of the hills

directed along the sloping sides of the triangular holes. As a result of the overlap of the material slides, which are being applied to all the holes, an even

material on the metal mirror. At the same time, the material from the height of the pile is scattered on the mirror with more gentle slopes.

Due to molten metal

there is a smoothing of hills. Utehl ushd mixture evenly covers the mirror of the molten metal. The dosage of the material is made automatically according to the operating time of the scraper conveyor. After filling the mold with luncite, the machine moves to the next mold using the movement mechanism 6. Upright

The frame is supported by the support rollers 7. After the casting is completed, the scraper conveyor 4 is turned by the turning mechanism 5 into the envelope of the casting platform,

Fig.Z

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Compiled by Y. Yakovlev Editor L. Pchelinska Tehred O. Vashchishina

581/15 Circulation 757 Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Branch GOSH Patent, Uzhgorod, Proektna St., 4

Proofreader L. Patay

Claims (1)

A MACHINE FOR SUBMITTING POWDERED MATERIALS TO A TARGET, comprising a hopper mounted on a frame with a drive for moving it, and a feed mechanism located rotatably below it, characterized in that, in order to increase the uniformity of distribution of powder materials, the feed mechanism is made in the form of a scraper conveyor, in the bottom of which holes are made triangular in shape, the base of which is located in the tail section of the bottom.