SU1745939A1 - Method of cutter-loader mining extraction of streaks of high-grade mineral deposits - Google Patents

Abstract

Usage: mining industry, the development of mineral deposits by underground mining. SUMMARY OF THE INVENTION: A powerful mineral deposit is developed in a layered technology with excavation of strips in a layer with the help of combines, for which ventilation and conveyor drifts are passed and connected to them by ore lances. The excavation of the strips is carried out continuously with simultaneous shipment to the bunker of the sufficient means and unloading to the ore pass. The escape route takes place in increments equal to twice the length of the conveyor belt of the delivery vehicle, after the strip has been dredged, the continuously flowing rock mass is accumulated on the conveyor, and after the movement to the next ore pass is completed, the direction of the rock unloading flow is reversed. 2 Il.

Description

The invention relates to the mining industry and can be used in underground mining of rock salt.

There is a known method of developing powerful mineral deposits, including the extraction of minerals by descending layers, dividing the layers into strips by combining the mined-out overload of the broken rock mass into the ore release during the movement of the combine relative to sufficient means within its conveyor length and subsequent accumulation on the conveyor in the period of movement of the delivery vehicle to the initial position for transferring the rock mass in the new cycle.

However, the known method requires the implementation of a large amount of mining work on the penetration of ore passes, since the step of penetration

at the same time, the ore passes do not exceed the length of the conveyor belt of the delivery vehicle.

The purpose of the invention is to reduce the volume of mining operations for smelting ore passes while preparing the mineral site for development by increasing the step of penetrating the ore passes.

The goal is achieved by the fact that in the method of combine-mining the strips of mineral deposits, including continuous combine breaking of the rock mass with simultaneous overloading it into the ore pass through a conveyor of a fixedly installed self-propelled delivery means during the movement of the combine relative to the delivery means within the length of its conveyor and subsequent heating it on the conveyor during the period of reloading of the rock mass in the new cycle, upon completion of the operation ne2

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Moving the recovery tool to the initial position, in each new overload cycle, the direction of flow of the overloaded rock mass on the conveyor is reversed.

Comparison of the proposed technical solution with the prototype allows to establish compliance with its novelty criterion. When radiating other known technical solutions in this field of technology, the distinctions between the described object of the invention and the prototype are not identified, and therefore they provide this technical solution with the criterion of significant differences.

FIG. 1 is a diagram of the development site; in fig. 2 shows section A-A in FIG. one.

The method is carried out as follows.

The plot is prepared by driving the conveyor drift 1 with its displacement relative to the axis of the chamber by an amount ensuring the installation of the conveyor 1 at one of the drift walls.

The preparatory work also includes the penetration of ore passes 3 from the conveyor drift 1 and the subsequent penetration of the ventilation drift 4 at the level of the upper layer.

Extraction of minerals is carried out in descending layers with the separation of layers into strips. Breaking of the rock mass within the band is carried out continuously by means of a combine 5, for example, of the Urals type, the broken rock mass is overloaded with a loading crane 6, for example, of the 4PP2 type, to a working conveyor of self-propelled delivery means 7, for example, a self-propelled 5B15M wagon ore pass 3, which is passed with a step equal to twice the length of the conveyor conveyor 7. After moving the combine 5 to the length of the conveyor conveyor 7, the overload of the rock mass from the conveyor to the ore pass 3 is stopped and Spanning means is moved in the direction of the breaker by a step equal to the length of its conveyor. In this case, the mass continuously supplied from the forge harvester 5 is accumulated on the conveyor. After stopping the delivery means 7 continue to overload the rock mass. In this new overload cycle

rock mass into the ore pass, the direction of the rock mass flow is reversed. In the following, the cycle repeats. Each successive lane is worked out with overlapping of the course of the previous lane. Of

The hearth 3 ore passes are fed to the conveyor 2 and transported to the main conveyor.

Using the proposed method reduces the cost of preparation

the site for the extraction of mineral resources due to the reduction in the volume of work on the passage of Gezenka, and therefore - to reduce the cost of production.

Claims (1)

Invention Formula The method of combining the extraction of powerful mineral deposits, including the penetration of ventilation and conveyor drifts, ore passes associated with the conveyor drift, with a step of penetration between the ore passes, a multiple of the conveyor belt of the delivery vehicle, the excavation of the mineral with descending layers, and the separation of layers into strips, continuous cyclic breaking of the rock mass by a combine with its simultaneous shipment through the material handler to the bunker of the hauling means and unloading by the conveyor of the haulier to the oreosphere accelerated accumulation of broken rock mass and simultaneous movement of the delivery means, characterized in that, in order to increase economic efficiency by reducing the volume of mining operations, the ore passes take place in increments equal to twice the length of the conveyor belt of the delivery means, moving the delivery means after the completion of the first excavation cycle by the length of its conveyor, accumulate continuously incoming the rock mass on the conveyor of the delivery vehicle, and after its movement is completed, the direction of flow of the rock mass discharge is reversed. Yag / i X, /) V /, S s S / B U Put. 2 21