SU128393A1 - Device for unloading bulk material from jigging and other dressing machines - Google Patents

Description

For unloading bulk material from jigging and other enrichment machines, devices are used consisting of two chambers equipped with alternately opening valve gates.

The proposed device is more perfect than the known similar devices, since it eliminates the danger of clogging the discharge opening of the upper chamber by the material. This is achieved by the fact that the valve shutter of the upper chamber is equipped with an elastic apron, reinforced around the periphery of the valve cone and preventing pieces of material from falling under the valve at the time of its planting. In addition, the shutter is provided with openings located around the periphery of the gate support ring at an acute angle to its axis of movement, connected to a pressure water supply system and providing, during the closing of the upper shutter, supply under pressure of water jets that wash off the remaining pieces of material.

The drawing shows a diagram of the proposed device.

The device consists of two amer / and 2 located in one vertical axis with conical bottoms, closed by valves 3 and # with conical covers. The valves are actuated by an appropriate hydraulic or mechanical actuator. The upper chamber is made with regard to the possibility of its attachment to existing jigging machines; for newly designed machines, the upper chamber can be a modified chute of the jigging machine itself. A pipe 5 with a controlled tap for supplying water is connected to the lower chamber. A check valve 6 is integrated in the lower part of the discharge valve stem.

When the material of the upper chamber is loaded to a certain level, the material level sensor is activated, which controls the valve operation through the spools. This opens the upper valve 3 and item no. 128393.

The material falls into the lower chamber 2, displacing the corresponding volume of water from it. Then the upper valve 3 closes, the lower valve 4 opens and the material with water is discharged into the chute 7 and is carried away with water to the destination. This ends the full cycle of the device. When the sensor is triggered again, i.e., when the upper chamber is filled with material, the cycle repeats.

To prevent the discharge chamber of the upper chamber from clogging, incoming material is drilled holes along the periphery of the upper valve at an acute angle to the axis of its movement, through which at the moment of its approach to the support cone 9 water is supplied under pressure. The resulting water jets wash off the pieces that are currently in place at the landing of the valve 3.

A movable apron 10 made of rubber or other elastic material is attached to the valve cone 3. When the valve moves up, it hangs freely from the valve, and when it moves down, it spreads out, drops its edges onto the surface of the support cone 9 and blocks access to the pieces falling from above under the valve. Thus, the valve sits on the surface of the support cone, free from pieces of material.

Subject invention

A device for unloading lumpy material from jigging and other enrichment machines, consisting of two chambers, equipped with alternately opening valve stoppers, characterized in that, in order to eliminate clogging of the discharge opening of the upper chamber with the incoming material, the valve stopper of the upper chamber is equipped with an elastic apron, reinforced periphery of the valve cone and preventing pieces of material from getting under the valve at the time of its planting, as well as openings located along the periphery of the support ring behind at an acute angle to the axis of movement, which are connected to a pressure water supply system and provide, during the closing period of the upper gate, the supply of water jets under pressure that flushes out the remaining pieces of material.