SU1421015A1 - Mining method - Google Patents

Abstract

The invention relates to the mining industry and m. used in the development of complex structural “deposits to the Amer. The purpose of the invention is to reduce the dilution of ore, as well as the loss of the useful component during development. complex ore bodies due to leaching of the rock mass, represented by technologically lost and off-balance ores. The balance reserves of ores 1 with a complex structure are divided into floors and blocks by carrying out preparatory workings. Stocks work chamber2. mi, and the camera - two sites. Sleep-; ,, - First, work off the stocks of the first part. ka chambers 2 are below the floor. After that, technologically lost 9 and off-balance 8 ores from the second section 7 are beaten off onto the formed hardened layer of hardening material — artificial bottom 3 and they fill part of the exhausted space of chamber 2. After this, the free developed space of the overlying chamber is added. hardening material. Then, the stocks of the chambers of the lower floor are repaired and an artificial bottom is formed. After the collapse of ores 8 and 9 from the second section of chambers n1-1 overlying floor, by transferring 3, the rock mass is transferred from the chambers of the overlying floor and the useful component is leached out with a solution of the reagent from the gassed one. rock mass. The free space of the chambers of adjacent floors between the leached ore and the hardening material is added. 5 il ... sg S (L 4 GhE

Description

The invention relates to the mining industry and can be used in the development of complex-structured deposits by chambers with the laying of the mined-out space and the leaching of technological lost ore and off-balance ores, which have been mapped in spent chambers.

The purpose of the invention is to reduce the dilution of ore, as well as the loss of useful component in the development

Complicated structural ore bodies for. by leaching the rock mass, represented by technologically lost and off-balance ores.

Figure 1 shows a section through the chamber across the ore body strike during the period of full development of the balance reserves of the overlying chamber and the erection of the hardened layer - the bottom of hardening material and complete drilling of the marginal zones; in figure 2 ate

the same, during the period of storage of off-balance and technologically lost ores of the overlying chamber, dozakladki free depleted space hardening material full mining balance reserves of the lower chamber, the construction in the lower part of the hardened layer - the bottom and complete drilling of contour zones; Fig. 3 shows the same, during the period of complete ore depositing, repulsed from the marginal zones of the lower chamber and bypassing off-balance and technologically lost ore from the overlying chamber into the free developed space of the lower chamber and their alkalizing; figure 4 is a longitudinal section aa on fig.Z; FIG. 5 shows the dozakladka free depleted space between the leached ore and the bookmark array.

The method is carried out as follows.

The balance reserves of ores 1 with a complex structure are divided into floors and blocks and worked with chambers, and chambers into two sections. In the first section there is an area with the correct contour of the ore body. The dimensions of this plot are crosswise. the strike of the ore body is equal to its minimum thickness within the substage,

The ore reserves of the first section are removed by chambers with a tab of the worked out space. In the lower part of the chamber 2 form a reinforced layer - the bottom 3 of the hardening material. Then, from the openings 4 and 5 of the overlying and underlying horizons of the drill of deep explosive wells 6, with which the reserves of the second section 7 (off-balance 8 and technologically lost 9 ores) are repulsed and filled with part of the developed space of chamber 2. Sewing up the free worked space of the surrounding chamber with hardening material 10, working out the stocks of the underlying chamber and erecting a reinforced layer - the bottom 11 in its lower part. After the off-balance 8 and the ore 9 are technologically lost, the adjacent underlying chamber and a set of hardening material 10 of necessary strength are demolished the bottom 3 of the adjacent chamber by means of explosive wells 12, drilled from the field workings 13 and 14, hanging and lying

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than the sides of the reservoir. As a result of the destruction of the bottom 3, the free developed space of the lower chamber is filled with a collapsed tab 15 and broken off off-balance and technologically lost ores 16, i.e. 8-ore repaired from the marginal zones of the lower chamber are additionally supplied to the mazaged-off-balance 8 and technologically lost 9 ore; additionally, the collapsed tab 15 and ore 16 from the adjacent upper chamber are additionally served.

Off-balance 8 and technology-lost 9 ores are bypassed into the lower chambers by this method until the lower chamber is completely filled with them, for example, through one, two or more horizons. It depends on the volume of the chamber, in which repaired off-balance sheet and technologically lost ores, as well as ores, are moved, to beat off the pits from the marginal zones of the strengthened layer-bottom.

After the lower chamber is completely filled, ore 16 is fed with the reagent solution from the irrigation system 17 mounted in the upper part of the underlying chamber. The productive solution is collected at the bottom 11 of the underlying chamber through wells 18. At the same time, the useful component is extracted from off-balance sheet and technologically lost ores recovered from the adjacent zones of the chambers.

After complete leaching of metal from off-balance sheet and technologically lost ores, free space of chambers of adjacent floors between leached ore 19 and hardening material 10 is dosed-up, for example, excavations 5 are insulated with jumpers 20 and hardening mixture 21 is fed through a backfill 22 drilled from the excavations 4. The specified free space is filled with bulk material (not shown). If necessary, the total developed space of the chambers of the underlying and underlying horizons is deposited with off-grade ore or tailings, and when forming a strengthened bottom layer, materials to be leached are used as a filler, for example, tailings,

The way to obtain minerals includes the opening and separation of mes51

flooding the floors and blocks by carrying out preparatory workings, testing the reserves with chambers, and chambers with two sections, forming artificial bottoms of the chambers from hardening material, filling the chambers with a rock mass, leaching the useful component with a solution of the reagent from the specified magnetized mountain mass, bypassing the mountain the mass from the overlying floor to the underlying destruction of the bottom of the upper chamber, the laying of the developed space with hardening mixtures, characterized in that reduction of ore degradation, as well as loss of the useful component in the development of complex ores of bodies due to the leaching of rock mass, presented technologically

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lost and off-balance ores, first work out the reserves of the first section of the chambers of the overlying floor, then beat off the technologically lost and off-balance ores from the second section on the artificial bottom and lay the developed space, then work the reserves of the first section of the chambers of the lower floor to form an artificial bottom, and after the collapse of technologically lost and off-balance ores from the second section of the chambers of the underlying floorJ transfer the mountain mass from the chambers of the upper floor and carry out schelachivanie zamagazini- Rowan rock mass, after which produce combined tab gob chambers adjacent floors.

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Claims (1)

Claim A method of mining, including opening and dividing the field into floors and blocks by carrying out preparatory workings, mining the reserves with chambers and chambers in two sections, forming artificial chamber bottoms from hardening material, filling the mined chamber space with rock mass, leaching the useful component with a reagent solution from the specified of stratified rock mass, bypass of rock mass from the overlying floor to the underlying one by destruction of the bottom of the overlying chamber, laying down the worked out hardening mixtures space, characterized in that ·, to reduce dilution of ores, and the loss of useful component at razrabotke.slozhnostrukturnyh ore bodies due to leaching of rock mass, provided technologically lb FIG. 1 lost and off-balance ores, first work out the reserves of the first section of the chambers of the upper floor, then beat off the technologically lost and off-balance ores from the second section on the artificial bottom and lay the worked out space, then work out the reserves of the first section of the lower floor chambers and form the artificial bottom, and after the collapse of technologically lost and off-balance ores from the second section of the chambers of the underlying floor; the rock mass is passed from the chambers of the overlying floor and the leached rock mass is leached, at the end of which the combined mined space of the chambers of adjacent floors is laid. L 7 A Fig