SU1281484A1 - Device for unloading loose material - Google Patents

Description

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The invention relates to a lifting and transport machinery, namely, devices for unloading bulk material from a silo, and can be used in the mining, metallurgical, chemical building and other industries.

The purpose of the invention is to improve the performance of the device.

FIG. 1 shows a structural diagram of the device; in fig. 2 is a diagram of the amplitude distribution along the length of the feeder tray.

The device contains a vibrating feeder 2 installed under the bunker 1, the tray 3 of which is made with outlet windows 4 and 5 located at its ends and is located symmetrically relative to the axis of the bunker 1. At the bottom of the tray 3 below its center of mass C, vibration exciter 6 is fixed.

The device works as follows.

Tray 3 vibration exciter 6 with a horizontally directed driving force P communicates horizontal and rotary vibrations around the center of mass C of the tray.

The horizontal component of the amplitude of Ar is constant over the entire length of the tray. The vertical-a.a component of the amplitude Ai at the center of mass is zero and increases with distance from it, reaching a maximum value at the discharge ends of the lot. The resulting amplitude A (the sum of Ar and A (,) also increases due to an increase in A ;,. The bulk material discharged from bunker 1 falls into the feed zone of the feeder located under the outlet of the bunker, and under the action of oscillations with increasing speed moves to the discharge zones of the feeder - outlet window 4 and 5, located on both sides of the boot area.

During the oscillation period, the vibrating feeder provides symmetrical oscillations about the center of mass, and, therefore, the condition of material transportation from the loading zone to the discharge zones of the tray on both sides of it. This prevents stagnation of the material in the loading zone and improves the conditions for its movement, which leads to a steady outflow of material from the bunker and an increase in the performance of the feeder.

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Claims (1)

DEVICE FOR UNLOADING BULK MATERIAL, containing a vibrating feeder mounted under the hopper perpendicular to its axis with a tray made with an outlet window located at one end and a vibration exciter with directional action of a disturbing force, characterized in that, in order to increase productivity, the tray has an additional outlet window, located at the other end of the tray, while the latter is installed symmetrically with respect to the axis of the hopper, and the vibration exciter is located below the center of mass of the tray, the excitation force of the vibration exciter is directed horizontally.