SU1220202A1 - Vibrating feeding screen - Google Patents

Description

The invention relates to a vibration technique, is intended for the unloading and pre-screening of large-scale unsorted materials and can be used in the mining, metallurgical, chemical, construction industries and other national households.

The purpose of the invention is to increase productivity when classifying lumpy materials by eliminating their hang-ups between the grate bars.

The drawing shows the described vibrating feeder-rumble.

The feeder-roar includes vibrodrive 1, frame 2, mounted on the frame by means of elastic elements 3, duct 4 with bottom 5 and grate 6, 7 mounted on supports 8 and 9, made in the form of racks.

Adjacent grate 6 and 7 have different lengths and are made with bevels 10 and 11 in the direction of movement of the material. The short grates 6 have a bevel 10 on the upper surface, and the long grates 7 have a bevel 11 on the lower surface.

Racks are placed at the ends of the grate bars and fixed on the feeding bottom 12, while the distance between the drains of the adjacent grate 6 and 7 must be at least twice the distance between the grate bars.

Vibrating feeder-rumble works as follows.

The source material enters the Bottom 5 and under the action of the driving force of the vibrating actuator 1 moves to

Editor N. Pisman Tehred M. Khodanich Proofreader M. Samborska

Order 6055/1 Circulation 565 Subscription

VNIIPI USSR State Committee

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

Production and printing company, Uzhgorod, st. Project, 4

0

the grate bars 6 and 7, at THIS the fine fraction spills between the grate bars 6 and 7, and the oversize product is transported to the unloading.

Difficult pieces, falling between the adjacent grate 6 and 7, do not form hang-ups due to the grate-wedge expanding in the direction of movement of the material and reorienting them at bevels 10, 11 and in the area of the supports 8, 9.

The reorientation of the difficult pieces on the bevels 10 is carried out due to the different values of the angle of inclination of the surfaces of the adjacent grate 6 and 7, which

5 provides both the rotation of such pieces relative to their center of mass due to the difference in speeds of the points in contact with different grate bars, and rotational oscillations in the transverse plane of the feeder roar due to the difference in height of the grates 6 and 7 under the influence of its own mass or the overlying grating product. If during movement

5 grates 6, 7 a difficult piece failed to reorient and touches the support 8 of the short grate 6, in this case it turns around relative to the support 8 in a plane parallel to the bottom 12, because the support 9 of the long grate 7 is moved forward along the material movement and not It prevents reversal. The reoriented difficult piece falls between the grate into the under-grate space or falls on the bottom 12 and is discharged into the next technological equipment.

0

five

Claims (1)

VIBRATING FEEDER-SCARP, including a vibrating drive, a frame mounted on the frame by means of elastic elements, a box with a bottom and grates installed on supports made in the form of racks, characterized in that, in order to increase productivity in the classification of Lump materials by eliminating them hangs between grates, adjacent grates are of different lengths and are made with bevels in the direction of movement of the material, with short grate bars having a bevel on the upper surface and long ones on the lower surface, and racks of size scheny at the ends of the grate, wherein the distance between the uprights adjacent grate least twice the distance between the grate. , 1220202 ..