SU1666722A1 - Method for development of high-capacity mineral deposits - Google Patents

Abstract

This invention relates to the underground mining of stratal deposits, for example rock salt. The goal is to increase the development efficiency by increasing the reliability of the technological scheme. Ventilation and conveyor drifts pass through, and two rows of ore chunks are drilled, which are opened when the mineral is dredged. The excavation is carried out in layers from top to bottom, and the mining of layers in strips. The rolls of the rulduspus runs at the minimum distance determined by the calculation formula. The ore passes in the first row pass from each other at a distance equal to twice the length of the conveyor belt of the delivery vehicle, and the ore passes in the second additional row pass at a minimum distance from each other equal to the double distance between the rows. The rock mass is shipped by the loader to the delivery bunker, where it is accumulated. Unloading from the bunker lead to the ore passes. On the conveyor drift, a dispersed storehouse of ore is formed, which is bypassed from the worked strip along the ore passes of an additional row. The ore is stored in stock by stopping the transport chain. The capacity of the cells of the warehouse take a multiple capacity of the bunker delivery means. Warehouse cells can form groups discretely. Sourced ore from the warehouse and from the combine cargo to the conveyor. These operations loading ore can be performed simultaneously. 2 hp ff, 4 ill.

Description

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The invention relates to the mining industry and can be used in the development of the underground method of powerful mineral deposits, mainly rock salt. using combines.

The purpose of the invention is to increase the development efficiency by increasing the reliability of the technological scheme.

Figure 1 shows the excavation area, in plan; FIG. 2 is a section A-A in FIG. one ; on fig.Z - section BB in figure 1; figure 4 is a plan of the transport horizon of the warehouse.

The method is carried out as follows.

The preparation of the chamber for the clearing recess consists in passing the transport drift 1 with a shift of the relative axis of the chamber providing the mineral by-pass from the first row of ore chutes 2 to the conveyor 3. installed on one of the gates of drift 1, and from the second additional row of ore gullets 4 to the dispersed warehouse 5, located on the sole of the conveyor drift 1 at the opposite side along the conveyor; mounting the conveyor 2; drilling two rows of ore lugs 2 and A to the level of the sole of the first layer and subsequent drilling of the fans onnogo gateroad b, ore passes autopsied 2.4. The transport drift 1 is carried out by a combine 7, for example, of the Ural type, with delivery by self-propelled transport. After installation of the conveyor 3, two rows of ore chutes (wells) are drilled, for example, by installation of BGA2M.

The minimum distance between rows of ore passes is determined by the formula

3

, 3 n V ctg a b p

where b is the minimum distance between rows of ore passes, m;

p - the number of unloading delivery means, m3;

V is the capacity of the bunker of delivery vehicle, m3;

and - the angle of repose mined mountain mass.

Extraction of minerals is carried out in descending layers with the separation of layers into strips. The ventilation drift b is passed in the first layer by a combine 7 of the Ural type with continuous delivery of broken weight by means of a reloader 8 to a bunker of delivery means 9 (for example, a reloading truck Sh9-WUA designed by VPKBsol and an upgraded self-propelled car 5BC15M having a bunker and a reverse bottom conveyor in ore passes 2, passed in increments equal to twice the length of the conveyor of the delivery vehicle 9 and further to the conveyor 3 of the transport horizon, or cyclically delivered by the same mechanisms to the ore passes 4 of the second row, traveled at a distance determined from the condition of placing the rock mass in the form of a cone at the base of the drift road 1. The minimum distance between the ore passes 4 is equal to the double distance between the rows of minerals from the processed cavity along the ore passes A are transported to warehouse 5. which is dispersed in cells in transport drift 1. Unloading from warehouse 5 to conveyor 3 is carried out by loading means 10, for example

measures, such as PNB, the capacity of the cells of the warehouse 5 take multiples of the bunker of the delivery device 9. After the installation of the delivery means for unloading in the next ore pass, located in front, reverse the bottom conveyor and unload the rock mass again at the same time. From the ore passes 2, the mountain mass is transferred directly to the conveyor 3 and further to the main conveyor 11.

When the transport chain is stopped, the delivery medium is unloaded into the ore passes of the 4th passbag mountain mass to the warehouse 5. To reduce the length of the delivery, the 4 ore passes are discrete in groups of 4 bits. The unloading from the warehouse 5 to the conveyor 3 is carried out by means of a loading means 10, for example, a loading machine of the type of PNB. Ore may be shipped from depot 5 at the same time as the rock mass from the ore slips 2 is received from the combine.

Each successive lane is worked out with overlapping of the course of the previous lane.

The procedure for removing the underlying layers is similar.

Claims (3)

1. A method of developing powerful mineral deposits, including carrying out ventilation and conveyor drifts and ore passes, excavating the mineral layer from top to bottom, testing the layers in strips, breaking the mineral in the layers and shipment of the rock mass to the bunker of the delivery vehicle, accumulation of the stitched mountain the masses in the bunker, the unloading of the rock mass from the bunker to the ore passes, which are opened during the excavation of one lane and transported by a conveyor along a conveyor drift, characterized in that w enhance development efficiency by increasing the reliability of the technological scheme, band reveals ore passes, extend a number of additional ore passes at the minimum distance from the first row, is determined by the formula emom u V3nVctgg D p where b is the minimum distance between the rows of ore passes, m; p - the number of unloading delivery means in one cell; V is the capacity of the bunker of the delivery vehicle, m; a is the angle of repose of the mined rock mass, with the ore passes in the first row passing from each other at a distance equal to twice the length of the conveyor belt of the delivery vehicle, and the ore passes in the additional row passing from each other equal to double distance between the rows, on the conveyor drift along the conveyor, a dispersed storehouse of ore is formed, which is bypassed from the developed strip along the ore passes of L | -t - j 1 8 7 eleven 0 In a row, the ore is stored in the warehouse by cells when the transport chain is stopped, and the capacity of the warehouse cells receives the reservoir capacity of the delivery vehicle bunker, the stored ore from the warehouse is loaded onto the conveyor. 2. Spob according to claim 1, characterized in that the gassed ore from the warehouse is loaded onto the conveyor at the same time as the ore is shipped from the combine, 3. The method according to claim 1, about tl and h and y and with the fact that the warehouse cells are formed in groups in a conveyor gateway discretely. Fig.1 4 a 8 78 / ,, 1 g -M. / FIG. ,five /. Fm.4