SU856923A1 - Method and apparatus for vibration transporting - Google Patents

Description

(54) VIBRATION TRANSPORTATION METHOD AND DEVICE FOR ITS IMPLEMENTATION The invention relates to lifting and transport equipment, namely, vibrating devices for moving bulk materials prone to sticking to the load-carrying body. The known method of vibratory transport of bulk material is that vibrations are reported to a load-carrying body equipped with a elastic pad, and at the same time its surface is irrigated with water 1. The closest technical solution to this invention is a vibratory transfer method that involves vibrations being transmitted to the load-carrying organ and compressed air supply under the elastic gasket 2. The disadvantage of this method is that there is no synchronization of the frequency of the impact of a power pulse on the gasket with the frequency of oscillations of the load-carrying organ, which does not allow to control the deformation of the gasket and the vertical plane in order to achieve maximum deformations in the tear-off movement to eliminate sticking of the material. The purpose of the invention is to eliminate the material on the load carrying belt by increasing the deformation of the elastic gasket. The goal is achieved by the fact that the supply of compressed air under the elastic gasket is carried out by means of a power pulse in antiphase with the displacement of the load-carrying organ. The method can be carried out with a device comprising a duct with openings, an elastic gasket, a controllable valve and elastic hollow supports, the elastic supports are connected to the controlled valve by means of an air duct, and to the atmosphere by means of a valve. On ng. shows a device for transporting the material, side view of figure 2 - section bb of figure g in figure 3. section bb in figure 1; Fig. 4 is a graph of the absolute vertical movement of the load-carrying body, material and gasket when exposed to a power pulse. Fig. 5 is a graph showing the change in pressure of compressed air under the gasket. The device contains a carrying body in the form of a metal box 1, mounted on elastic hollow supports 2, a causative agent of 3 directional oscillations rigidly attached to the box. At the bottom of the box there are openings c leading to the pneumatic chamber 4. Elastic pad 5 is fixed with bars b on the bottom The box has its longitudinal sides and the butt at the loading point. On the box there is a loading nozzle 7 and a discharge nozzle 8. A pressure air line 9 connects the compressed air line to the chamber 4 by means of a control valve 10, the cavity of which is connected by the control air line 11 to the cavity of the supports 2 "With the help of a check valve 12 the support 2 is connected to the atmosphere .

The device works as follows

The oscillator 3 oscillations informs box 1 directed oscillations with a horizontal amplitude of ARI with vertical amplitude Ag and loading through the pipe 7 the material is transported to the pipe 8 o

Consider the movement of a material with a one-time tossing in the first half period when the box moves up (curve 1 of figure 4) the material (curve 2) is detached from the transporting surface at 8 and flies. After some time, the gasket (curve 3) is also detached from the duct at point d and moves over the duct. In this half-period, due to the upward movement of the box, the check valve 12 is open, the cavity 2 and the control cavity of the valve 10 are connected with. atmosphere, i.e. the valve 10 is closed and compressed air from the air guide 9 does not flow under the gasket. During the return stroke in the second half-period, the box moves downward, compressing support 2. The air in the cavity of support 2 compresses, closes the check valve 12, and through air duct 11 enters the control cavity of valve 10. The latter operates and opens access of the compressed beam to chamber 4 and openings but. E; gststichnoe gasket compressed air

imparts a force impulse, under the influence of which it bends, throwing off adhered particles of material. After meeting the falling material at point e, the gasket is allowed on the duct at point C. Thus, compressed air flows under the gasket every second half period when the duct moves downwards and since the gasket does not experience material pressure at this time, its deformation will be greatest.

The proposed method vibrotranspo | The tirovaniye and device for its implementation allows to prevent sticking of the transported Material on the cargo-dry organ.

Claims (2)

Invention Formula 2Q 1 o The method of vibrational transport, including the message of oscillations to the load-carrying body and the supply of compressed air under an elastic gasket, characterized in that in order to eliminate sticking  material on the load-carrying organ poo. the increase in the deformation of the elastic gasket, the supply of compressed air under the elastic gasket is carried out by means of a "power impulse in antiphase" with the displacement of the load-carrying body, 2. A device for vibratory transport, including a duct : With openings, an elastic gasket, a controllable valve and elastic hollow supports, characterized in that the elastic supports are connected to the controllable valve by means of an air duct, and to the atmosphere by means of 49 check valve. Sources of information taken into account in the examination 1. USSR author's certificate. No. 441211, cl. B 65 G 27/04, 1972. 2, US Patent No. 3087602, CL.198-220, published. 1963 (prototype).