SU152197A1 - The method of erosion of solid crushed material in a chamber feeder hydrotransport installation - Google Patents

Description

METHOD OF WASHING SOLID CRUSHED

MATERIAL IN CHAMBER FEEDER

HYDRAULIC INSTALLATION

Declared January 18, 1960 for W 651194/22 Committee on Inventions and Discoveries at the Council of Ministers of the USSR

Published in "Bulletin of inventions number 23 for 1962

This invention relates to methods for scattering solid particulate matter in a chamber feeder of a hydrotransport unit.

The essence of the described method is that the erosion of solid crushed material inside the chamber is carried out in layers using a perforated tube lowered into the chamber into which part of the main flow is diverted. This ensures that the material is evenly lowered in the chamber and eliminates the danger of solid material hanging.

FIG. Figure 1 shows the high-altitude layout of the bunker chambers; in fig. 2 is a diagram with two power chambers with the location of a crushing and preparation unit in separate workings.

The material transported from the sites (coal or rock) is fed into the trolleys and with the help of tipper 2 it is unloaded into the receiving bin 3, from which metal items are picked up by the metering gate 4 to the plate feeder 5. The feeder is used to select wood and magnetic pulley separator 6 to pick up metal objects. Then the material enters the crusher 7 and the screen 8.

The transported material is divided into 2 classes: under the flow 9, flows directly into the storage bin 10, and the grating goes there through the crusher //. The workings where the crushers, screens and chutes are located (including the hopper 10) are subsidiary and can be fixed by a conventional stem mount with the equipment positioned on the ceilings. Below

No. 152197-2 -

The power chamber 12 of the feeder is located in which the perforated tube 13 is lowered. The capacity of the power chamber 12 should not exceed the capacity of the storage bin 10, and its strength should be calculated on the pressure that the pump supplying the circulating water and pulp will create.

When the lower hermetic device (gate valve) 14, open top device (valve) 15 and gate / 5 are closed, the transported material is reloaded from the hopper 10 into chamber 12. With gate 16 closed, the top valve 15 closes and the bottom 14 opens. Thereafter, the pressure in the chamber 12 and the pipeline i / 7 is equalized, which is created by a pump installed on the surface or in the mine and running on clean water; then the solid particles under the force of gravity are lowered into the mixing chamber 18 and the flow of passing water through the pulp line 19 is fed to the discharge point. In order to increase the efficiency of the feeder, part of the water from the conduit 18 is diverted into the perforated pipe 13 and, passing through the holes, erodes the solid inside the chamber. By throttling the valves 20 to 21, the chamber 12 is supplied with -water in an amount equal to or greater than the volume of the displaced material during more intensive leaching. The remaining water in chamber 12 (instead of discharged solid) through tube 22 is partially or completely drained into the sump 23 and the cycle repeats.

Subject invention

The method of framing solid crushed material in a chamber feeder of a hydrotransport unit, characterized in that, in order to prevent material from hanging out of the feeder chamber, it is eroded inside the chamber in layers using a perforated tube lowered into the chamber.

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