CS220617B1 - Suspension bar curtain outlet, chute or hopper for supply of bulk material to vibratory sorter, feeder and conveyor - Google Patents

Abstract

The invention relates to a hanging rod screen for the outlet of a storage tank, chute or hopper for feeding bulk material to a vibrating screen, feeder and conveyor. The essence of the hanging rod screen according to the invention lies in the fact that the lower ends of the individual rods (1) are bent against the direction of flow of bulk material (4) along the vibrating screen (5), feeder and conveyor. Its advantage is that it maintains a uniform height of bulk material (4) on the vibrating screen (5) across its entire width, thereby achieving its higher efficiency. The hanging rod screen according to the invention is illustrated schematically in the attached drawing.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pendulum bar orifice for a container, chute or hopper for supplying bulk material to a vibrating screen, feeder and conveyor. The principle of the suspension curtain according to the invention consists in that the lower ends of the individual bars (1) are bent upstream of the bulk material (4) along the vibrating screen (5), the feeder and the conveyor. Its advantage is that it maintains a uniform height of the bulk material (4) on the vibrating screen (5) over its whole width, thus achieving its higher efficiency.

The hanger bar according to the invention is shown schematically in the attached drawing.

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BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hanger bar for opening a hopper, chute or hopper for supplying bulk material to a vibratory sorter, feeder and conveyor to achieve uniformity of bulk material throughout the width of the vibratory sorter, feeder and conveyor.

The bar curtains installed in the hopper outlet, chute or hopper for feeding the bulk material to the vibratory sorter, feeder and conveyor are installed directly at or near the outlet, to prevent spillage from spontaneously flowing to the vibratory equipment, and further in order to provide the required height of the bulk material layer on these vibration devices.

Bar suspension curtains, consisting of bars freely suspended on a pivot, located longitudinally transverse in the flow direction of the bulk material, on the vibratory sorter, feeder and conveyor, do not sufficiently ensure that the bulk material does not spill from the hopper, chute or hopper , the feeder and the conveyor, and also do not sufficiently provide a certain height of the bulk material on the vibrating screen, feeder or conveyor, especially when grains of significantly different sizes are present in the bulk material being fed.

In these cases, when the large grain passes under the suspension curtain rod, the respective grain is raised by the large grain. Further loose material is pushed into the space below the raised bar immediately after the large grain from the outlet of the hopper, chute or hopper, so that the respective bar takes up its original nominal operating position after a certain time. For a given period of time, a higher layer of bulk material is fed to the vibrating screen, feeder or conveyor in the section of the respective bar.

The above-mentioned disadvantages of hitherto known suspension bar curtains are eliminated by the suspension bar curtain opening of the container, slip

Claims (1)

Hanging bar of outlet of hopper, chute or hopper for feeding of loose material to vibrating screen, feeder and conveyor, characterized in that the individual bars (1) 617 or hoppers for feeding bulk material to a vibratory sorter, feeder and conveyor according to the invention, characterized in that the individual bars have the lower ends bent upstream of the vibratory sorter, feeder and conveyor. An advantage of the hanger bar of the invention is that the bending of the bars generally increases the angle between the flow direction of the bulk material along the vibratory screen, feeder and conveyor and tangent to the bar surface at the imaginary pressure resultant resulting from the bulk material flow through the vibratory screen, feeder and conveyor. thereby reducing the respective component of the lifting force of the bars, so that a reduction in the height of the bulk material layer is required, especially in the vibratory screeners, in order to properly sort the bulk material. Said bending of the bars causes the end of the bar to jam in the bulk material after passing the large grain below the respective bar and thus minimizes the time period during which a higher layer of bulk material is fed to the vibrating screen, feeder and conveyor. This achieves a substantial increase in the uniformity of the bulk material on the vibrating screen, feeder and conveyor. The suspension bar of the container, chute or hopper outlet of the present invention is illustrated by way of example in the accompanying drawing, showing schematically a side view of the container outlet provided above the vibrating screen. According to an exemplary embodiment, the suspension bar of individual rods 1, which are hinged at their upper ends on a pin 2 fixedly connected to the upper wall of the discharge opening 3, of the bulk material container 4. The lower ends of the rods 1 are bent upstream. The orifice 3 of the bulk material container 4 is provided above the vibrating screen 5 and the pin axis 2 of the individual rods 1 of the hanging bar is perpendicular to the flow direction of the bulk material 4 along the vibrating screen S. In the invention, the lower ends are curved upstream of the bulk material (4) along the vibrating screen (5), the feeder and the conveyor. l sheet of drawings