SU901573A1 - Oscillating feeder - Google Patents

Description

(54) SHAKING FEEDER

I

The invention relates to the mining industry and can be used to create swinging feeders for the production of ore from refining blocks during underground mining.

A swinging feeder is known that reduces the pressure of the material on the bottom of the tray when it is reversed (backward), by increasing the angle of inclination of the bottom of the tray to the plane of its movement 1.

However, under underground mining conditions, feeders of much greater length are required to release ore from the blocks through the outlet hole than when bins are released. As the length of the feeder (with the tilted bottom of the tray to the plane of its movement) increases, its height increases and it becomes non-transportable through mine workings.

The closest technical solution to the present invention is a swinging feeder for extracting ore from blocks, in which only that part of the bottom of the tray that is located under the outlet in the region of high

pressure. The rest of the tray bottom is parallel to the plane of its movement.

The presence of a platform under the outlet contributes to a reduction in the efforts of resistance to the movement of the bottom of the floor during its reverse course G2.

However, the use of this site is related

with an increase in the depth of the gutter, which is accompanied by an increase in the resistance to moving it backward by increasing the height of the lateral

10 walls of the bottom of the gutter.

The purpose of the invention is to reduce the energy intensity of ore production from blocks.

The goal is achieved by the fact that in the swinging feeder for loading and unloading

15 materials into vehicles, including a fixed chute, a movable bottom having side walls and trough-related labyrinths; obtuse angle to the bottom plane,

390

which has the shape of a trapezoid, a large base of which is set in the direction of transporting the material.

FIG. 1 shows a swinging feeder, general view, from the front; in fig. 2 - the same

view from above; in fig. 3 - the same, longitudinal section.

The swing feeder comprises: a fixed chute 1, a movable bottom 2, labyrinths 3 located between the chute and its movable bottom, beads 4 of the bottom of the chute and its inclined part 5 in the form of a trapeze.

As the slope or the length of the platform 5 increases, the labyrinths 3 must be raised upwards, which is accompanied by an increase in the height of the side walls of the bottom 2 of the troughs and at the same time an increase in its depth. When pushing a material out of a deep gutter, expansion forces arise on its side walls, which is accompanied by an increase in the resistance to movement of the material along this gutter.

As a result of tilting the sides of the bottom 2 to the sides and forward, elimination of the thrust forces and reduction of the resistance to movement of such a bottom is provided. This is due to the fact that the side, inclined at an obtuse angle to the bottom, wedge out from under the transported material.

The use of the proposed feeder provides the possibility of reducing the increase in resistance to movement of the back of the bottom of the chute

to the extent of resistance to its movement forward. With this, new opportunities are revealed for reducing the energy intensity of the process of producing and loading ore from the refining blocks with the help of swinging feeders.

Claims (2)

1. USSR author's certificate number 90502, cl. E 21 F 13- / 00, 1950. 2. USSR author's certificate for application number 2540139/03, cl. E 21 F 13/00, 1977 (prototype).