RU202919U1 - RECEIVING AND SEGRATION BUNKER - Google Patents

Abstract

The receiving and segregating bunker is made in the form of a container with a conveyor bottom coupled with a drain wall and side walls equipped with a vibrator and shock absorber. The descent wall of the receiving hopper is made in the form of a curved surface of the S-shaped shape, with its upper face it is hinged on the side walls of the receiving hopper and is installed at an angle to the horizontal, while the transverse elements are fixed on the descent wall at an equal distance from each other. The conveyor bottom of the hopper is made in the form of two parallel feeders with multidirectional movement of transporting bodies, mounted perpendicular to the vertical axis of the drain wall. The technical result is an increase in the efficiency of the receiving hopper as a device that segregates the feedstock at the initial technological stage.

Description

The utility model relates to the mining industry, in particular to the technical means used in open pit mining for the production of crushed stone obtained by crushing rocky soils and subsequent screening of crushing products.

Separation of bulk materials into products of various sizes is one of the main processes in the production of crushed stone.

The known design of a vibration-segregation device, including equipped with a vibrator and a shock absorber, separating the rock mass into surface fineness classes (Patent for invention 2573139 Russian Federation, IPC В07В 13/00. Cone-free vibration-segregation device for preliminary classification by the size of coal and ores. Petukhov A .N., Zhelobkov P.S., Savinov O.S., et al. // No. 2014130613/03; declared 07.22.2014; publ. 01.20.2016, bull. No. 2.).

The closest to the proposed one is the design used in crushing and sorting equipment complexes that implement the technology of crushed stone production, a hopper with a feeder, representing a capacity and consisting of a conveyor bottom, associated side and front - drain walls. (Building machines: Textbook / Volkov D.P., Krikun V.Ya. Second edition, revised and supplemented - M .: Publishing house Association of building universities, 2002. - S. 296-310).

In the feedstock for the production of crushed sandstone, crushed by explosion, the number of pieces not exceeding the average size reaches 50% of the total volume. (Lyashenko Yu.M., Revyakina E.A., Lukyanova G.V., Shcherbak E.G. Research results of the relationship between the used drilling rigs and the main characteristics of the crushed sandstone massif // Modern applied research: materials of the National Russian conference, April 2017, Shakhty / South-Russian State Polytechnic University (NPI) named after M.I. Platov. - Novocherkassk: YRSPU (NPI), 2017. S. 56-60.).

The main disadvantage of the prototype is the feeding by the feeder of all feedstock, including lumps not exceeding the average size, to the primary crusher, which is economically impractical.

The technical result is an increase in the efficiency of the receiving hopper as a device for the segregation of feedstock at the initial technological stage.

The technical result is achieved due to the fact that in the receiving-segregation bunker, in the form of a container with a conveyor bottom, coupled with a drain wall and side walls equipped with a vibrator and a shock absorber, the drain wall of the receiving bunker is made in the form of a curved surface of the S-shaped shape, the upper edge is hinged fixed on the side walls of the receiving hopper and installed at an angle to the horizontal, while on the drain wall at an equal distance from each other, transverse elements are fixed, and the conveyor bottom is made in the form of two parallel installed feeders with multidirectional movement of transporting bodies mounted perpendicular to the vertical axis of the drain wall ...

FIG. 1 shows a receiving hopper with a descent vibration-segregation wall. FIG. 2 - he, type A.

In the proposed receiving and segregation hopper 1, the outlet wall 2 is made in the form of a curved surface of the S-shaped shape and is fixed on the side walls by means of a hinge 3. The outlet wall 2 rests on a shock absorber 5 equipped with a vibrator 6. Along the entire height of the outlet wall 2 at an equal distance transverse elements 7 are fixed from each other. Such a design of the drain wall ensures the segregation of the feedstock at the initial technological stage.

The conveyor bottom 8 of the receiving hopper 1 is made in the form of two feeders 9 and 10, which structurally makes it possible to direct the separated small particles of the source material bypassing the crusher 11 of the primary crushing stage.

The principle of operation of the proposed receiving and segregation bunker is as follows.

The raw material is loaded into the receiving hopper 1. The method of loading is motor transport. At the same time, the vibrator 6 is turned on, which creates vibrational vibrations. The vibrations are transmitted through the shock absorber 5 to the outlet wall 2, which vibrates with a vibration frequency of 1000 vibrations per minute and an amplitude of 2-3 mm. The original material containing large and small particles rolls downward under the influence of gravitational force. In this case, due to vibration and friction forces, large particles float, and small particles end up at the surface of the drain wall 2, the transverse elements 7 of which, along the entire path of movement of small particles downward, slow them down, reducing their speed.

As a result, small particles, approaching the lower edge of the drain wall 2, have a movement speed that is much lower than the speed of large pieces. Due to the lower speed of movement, small particles fall on the conveying body of the feeder 9, and large particles, rolling in the upper layer at a much higher speed, onto the conveying body of the feeder 10.

Feeder 9 feeds fine material to conveyor 11, feeder 10 feeds coarse material to conveyor 12.

Affordable

The feeder 10 feeds the coarse material into the crusher 11 of the primary crushing stage, where the material is crushed into pieces of medium size. Further, the material is fed by the conveyor 12 to the 13 sifting screen.

Feeder 9 feeds fines material directly to screen 13.

On the screen 13 by the feeder 9, bypassing the crusher 11 of the primary crushing stage, the fines material is also fed.

Thus, the proposed receiving and segregation bunker, a receiving bunker with a descent vibration-segregation wall, compares favorably with existing analogs in that such a design ensures that the primary crushing stage is eliminated up to 50% of the original rock mass due to the segregation of the feedstock at the initial technological stage and, therefore, it helps to reduce energy consumption for the production of a unit of the finished product and increase the productivity of crushing and screening equipment complexes that implement the technology of crushed stone production.

Claims (1)

The receiving and segregating hopper in the form of a container with a conveyor bottom coupled with a drain wall and side walls equipped with a vibrator and shock absorber, characterized in that the drain wall of the receiving hopper is made in the form of a curved surface of the S-shaped shape, the upper edge is hinged on the side walls of the receiving hopper and is installed at an angle to the horizontal, while transverse elements are fixed on the drain wall at an equal distance from each other, and the conveyor bottom is made in the form of two parallel feeders with multidirectional movement of transporting bodies mounted perpendicular to the vertical axis of the drain wall.

Images