SU1188324A1 - Ore overflow method - Google Patents

Description

The invention relates to mining

case and can be used when

open pit and underground mining. .

The purpose of the invention is to raise 5

reliability and safety of the bypass system.

FIG. 1 is a diagram of the ore bypass, FIG. 2 - design of the loading bunker. ^{, 0}

The method of transferring the ore is as follows.

Several vertical or sloping sections of the ore-sprout trunk 1 pass, at the interface of which intermediate bunkers 2 are constructed, intended to extinguish the high free-fall velocity of the ore pieces. The number of individual sections, and hence the number of bins diate prome- ²⁰ may be different, is selected from deep ore pass basis and stability host rock. The main accumulating bun (ker 3 is located at the top of the ore pass and is fixed, for example, annular lined tubing. A loading hopper 4 located at the bottom of the ore pass issued at the horizon generation 5. Hopper ³⁰ nen performed with a system of drainage devices, which may be used as , for example, inspection workings 6. The installation level of drainage devices is located at the level of the top 35 ore accumulated in the loading bunker. The amount of ore accumulated in the bunker should be minimal and not exceed amb volume for the cushion layer 40 PREVENT rashchenija fracture exhaust devices. ¹

The main storage bunker, the loading bunker, as well as each intermediate bunker are equipped with an exhaust-45 devices 7 of equal performance, all exhaust devices being blocked and their switching on and off at the same time ”. Vibrating or plate feeders can be used as discharge devices.

Bypass ore according to the invention is as follows.

Before the operation of the ore passage, each bunker is filled with a cushioning layer of ore to prevent the destruction of exhaust devices. During the operation of the ore pass when the ore is transferred from the open pit to the main haulage output, its main volume in the quantity necessary to ensure the normal operation of the disbursed funds is accumulated mainly in the bunker. This volume is determined! · Based on the design of the bunker, the bulk weight of the ore, the intensity of its release from the bunker.

When loading the ore into the disbursed funds at the main haulage, a discharge device regulating the release of ore from the loading bin is included. At the same time, exhaust devices are switched on, which regulate the release of ore from intermediate bunkers and the main storage bin and ore from the latter is transferred to the loading bunker. In the process of bypassing, the level of filling with the ore of the loading bunker is kept constant at the level of installation of drainage devices, for which the release of ore from the main storage bin, from intermediate bins and from the loading bunker is carried out in equal doses. In this case, water that accumulates on the surface of the ore is rather easily removed through drainage devices, which practically excludes the possibility of pulp formation in the bunker.

1188324

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devices

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Urobeni ore

accumulated

Claims (2)

ORE BYPASS METHOD, including the sinking of the ore passage, the construction of loading, main and intermediate storage bins along its length, drainage and exhaust devices, characterized in that, in order to improve the reliability and safety of the bypass system, the main storage bunker is constructed in the upper part of the ore pass. and the drainage devices are installed in the loading bunker, while the filling level of the latter is kept constant at the installation level of said drainage devices, Rich exhaust devices all include silos th switched off simultaneously. ,, 51), 1188324 > one 1188324 2