RU1784560C - Device for caving bridged loose materials in hoppers - Google Patents

Abstract

Use: for the collapse of freezes and vaults of bulk materials. SUMMARY OF THE INVENTION: the device consists of a container for compressed air, two pneumatic pulse valves, nozzles in the form of two sleeves connected to a chamber with a flap flap with a flag, two pairs of pipelines going from each chamber to the flag of an adjacent nozzle for supplying compressed air. Advantageous effect: the device allows sequential automatic commissioning of nozzles with the connection of at least two nozzles to one air-pulse device. 3 ill.

Description

The invention relates to means for breaking down arches and freezes of bulk materials in silos and can find application in coal, mining, construction and other industries.

A device for collapsing hangs and arches of material in bins and estruses is known, comprising a container with an air pulse valve, an exhaust barrel, a box with a flapper, pipelines and nozzles.

A disadvantage of this device is the fact that the nozzles are alternately put into operation.

The closest in technical essence is the device adopted for the prototype, comprising a container of compressed air and two pneumatic pulse valves with nozzles attached to them.

The disadvantage of this device is the operation of the pneumatic pulse valve for only one nozzle and the automatic sequential commissioning of the nozzles.

The purpose of the invention is to increase the efficiency of collapse by increasing the number of nozzles connected to one pneumatic pulse valve and automation of nozzle commissioning.

The goal is achieved in that in a device including a container for compressed air, two pneumatic pulse valves connected by an air supply system, a nozzle and a control valve, each nozzle is made in the form of two sleeves connecting their chambers and a flapper installed in it with a flag and a supply to it from an adjacent chamber of pipelines for supplying compressed air in the direction of the front and rear surfaces of the flag.

Figure 1 shows a schematic structural diagram of a device; figure 2 is a section aa in figure 1; in Fig.3 - the position of the flapper in the actuation chamber after the operation of the adjacent pneumatic pulse valve,

The device includes a container 1 for compressed air, two pneumatic and pulse valvesvj СО

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on, each of which consists, respectively, of the body 2 and 3, the roof 4 and 5, located between the body and the cover, the membranes 6 and 7 of the exhaust shaft 8 and 9, the pipe 10 and 11, the bypass pipe 12 and 13, with a check valve 14 and 15, chambers 16 and 17, with a flapper 18 and 19, on the axis of the second, a flag 20 and 21 is fixed, fixed by a spring 22 and 23, sleeves with nozzles 25 and 26, 27.

 The air jets in the direction of the flag planes in the device are provided with pipelines 28 and 29, 30 and 31.

The compressed air supply system of the device includes a supply pipe 32, a control valve 33, and distribution pipes 34 and 35.

The device operates as follows.

By turning on the valve 33, compressed air from the pneumatic network 32 through pipelines 34 and 35 enters the cavity above the membranes 6 and 7 and from them through pipelines 12, 13 through the check valves 14, 15 in the cavity of the casings 2, 3 of the pneumatic pulse valves and then through the nozzles 10 11 to a container 1 for compressed air.

When the pressure in the container 1 reaches the pressure of the compressed air in the supply line 32, the charging of the device ends.

For firing a shot, for example, through the nozzle 25, the crane 33 is moved to a position in which the cavity above the membrane 6 through the pipe 35 and the crane 33 communicates with the atmosphere. As a result, the pressure of compressed air in the cavity above the membrane decreases and the membrane under the action of higher air pressure in the cavity

The body of housing 2 is rejected from the exhaust barrel 8 and compressed air from the tank 1 through the nozzle 10 and the cavity of the housing 2 is directed into the exhaust barrel 8 and then into the chamber 16 and from it through the nozzle 25 into the zone of material hanging in the hopper.

Simultaneously with the release of compressed air through the nozzle 25, part of the air enters the pipeline 30 and expiring from it in the direction of the plane of the flag 19 turns it and, accordingly, the flapper 19 connected with it to a new position (Fig. 3).

With the alternately commissioning of pneumatic impulse valves, the shutters and the sequential commissioning of all nozzles occur, as described above.

Using the proposed technical solution will improve the efficiency of the pneumatic caving system of material hanging in the hopper.

Claims (1)

The claims A device for collapsing arches of bulk materials in silos, comprising a container for compressed air, at least two pneumatic impulse valves connected to a compressed air supply system, nozzles and control valves, characterized in that, in order to increase the efficiency of the process of collapsing arches, each the nozzle consists of two outlet sleeves connecting their chambers and a flapper installed in it with a flag located between the outlet sleeves, while a pipe is installed in the connecting sleeve of the chamber of each nozzle a wire for conveying air therefrom to a flap flag of an adjacent nozzle. nineteen eleven Fie. 1 27