CS225536B1 - Concentrated mining of two or more levels of the coal deposit - Google Patents

Description

The present invention relates to a method for simultaneous pooling and space-time conquering of two or more layered units of the same or different subsoil layers of coal seams, increasing the capacity of the active coal mines and edge fields of the coal sub-basin and increasing the newt mining intensity.

Until now, individual seams and layers have been mined from top to bottom and only exceptionally associated footbridges of the same seam, or close to each other and quite exceptionally associated various non-overlapping layer units in one space congestion. to the extensive mining of the sub-basin bearing and to the use of the basic mines of the mines and districts * The total area of active mines of the districts was extended mainly by new mining areas, possibly new sub-basins, which are more time consuming and expensive to acquire opening, preparation and quarrying in the lower layers of active mines after its merging, but in neighboring reconnaissance and marginal fields * Especially the demands on the construction, reconstruction and modornizaoi of surface facilities and invostieo are considerably lower than in the construction and mines districts which generally Navío VODS ssmědělské conquest to most soils, and significant deterioration of environment živetnihe *

The above-mentioned drawbacks are eliminated by the method of concentrated mining of two and vioo layer units according to the invention, which is based on the fact that in existing localities downstream of existing mining pits and wind pits, jjémeu for oelsu location, with iso *

225 536 with a separate wind system, with the fact that the mining in the combined mining area will proceed in stages, given the coal richness of the other levels ·

In this way, the mining capacity of the mining areas of the lower deposited units will be obtained and will enable the gradual orderly exploitation of the bounded reserves of the upper deposited units and the possibility of more rapid acquisition of field capacities adjacent to the existing mining areas. For example, in a specific sub-basin over a 40-year period, the mining overlapping time of the associated mining strata represents a contribution in mining capacity of approximately 3000 «* 4500 t / Sen per combined mine, an average newt of 9000« * 13 500 t / day. · Savings consisting essentially of more intensive use of coal reserves and basic deposits of a bearing or sub-basin compared to the construction of new mines in the same deposit * in another sub-basin · Another advantage of the proposed method of mining can be seen in the separation of two wind and mining systems in terms of the interaction of mine workings and their insulation in terms of ventilation · No less significant beneficial effect of merging existing mines and peripheral fields compared to the construction of new mines. results in a substantially lower environmental impact of the area ·

FIG. 1 shows a cross-sectional view of the concentration of the mines operating downwards and newly formed into the former space; FIG. 2 shows an exemplary embodiment of the method according to the invention with a single time distribution; according to the stages and in Fig. 3 there are shown in plan view possible variants of the merged mining areas in one sub-basin ·

Fig. 1 shows, in cross-section, the concentrated mining of the mines 160, 161, 162, 163, the surface of the whole locality 150, the relief of carbon 151, the basal seam of the upper stratum 152, below which the no-axis zone 6 is 150 - 350 m zone is the first extractable seam of the lower layers 54 of the new mining area 141 intended for simultaneous mining of lower lying layers units, in this case in the lower strata deep

225 536

-1400 m p.m. The common floor 5 of the associated mine for underground mining with explosion in the (1 to VII) five-year phase includes a new wind connection 120 at location 141 including new IIP fans, a pit 14 and a pit 24 ·

Fig. 2 shows an exemplary embodiment of the invention in the spatial and temporal merger of four mining spaces operating downstream 160, 161, 162, 163 and the creation of a new common floor 5 in the entire locality 141, for mining the bottom layers in different five-year mining stages (1 - VII) · In the combined mining area 141, the site of the mine 162 designated for the selective extraction and treatment of coal of the lower strata from the common floor is selected by the basic mining unit. · The new unit of the merged space 141 will have a new wind connection 120 and a new mining 14 , Locality 160 represents the existing active mine including the main data, ie · extraction pit 11, wind pit 21 · Kota 0.00 m 3 is common for all localities of existing dCl in the same way as Marking of existing mining level 4 of no-seam zone 6 » - 360 m between the top layers * Common floor of the associated mine 5 for underground mining is assumed at the common kitten in all locations with exploitation in (I - VII) stage · Other five-year exploitation stages 7 (VIII - X) and £ (XI - XII) are promising · · Temporary simultaneous mining of the upper and lower layers 9, 91, 92. 93 as well as the mining of only the lower layers 10 is valid for all locations indicated in Fig. 2 · The location of the existing mine 161 is shown similarly · common floor of the associated mining of the lower layers in (I - IV) stage 51. exploitation in (V - VIII) stage H1 and finally exploitation in (IX - XII) stage 81 · The location of the existing mine 162 is similarly shown · Mining pit 15, Wind Pit! 25. Existing mining stage with exploitation in (I) Stage 4 and common floor of associated bottom mining in (II - III) Stage 52 »Mining in (IV) Stage 72 and in (V - VIII) Expansion of Stage 81» Expected next floors · The location of the existing mine 163 is depicted by the existing mine pit 13, the wind mine 23, the existing mine floor 4 with exploitation in the (I - III) stage and together the mine floor bottom layers 53 in (II and VI) stage · Exploatation of TO in stage (VII - IX) and 83 in stage

225 536 (X · XII) terminates mining · New assumed location 141 for own combined mining from common floor 5 of all sites operating under ISO · 161. 162. 162. 163 has in addition to new mining 14 and wind 24 holes marked wind connection 120 and new fans 110 · Exploatation of the associated conquest of stages (Vlil to XII) is indicated by the numbers 841, 842, 843, 844, which represent further floors.

Fig. 3 shows plan views of variants 140. 141 · 142 merged mining areas in one sub-basin, solved in detail in the design study · Location 141 concentrates one variant of the sub-basin with four active mines 160, 161, 162, 163 as a concentration of these sites with existing facilities on the surface, including mining pits 11, 12, 13, 15 and wind pits 21, 22, 23, 25, under the common site of associated mining of lower layers with a new mine pit 14 and a new mine pit 24 · boundary arrays 164, 165, 166 associated downhill, basic tectonic failure 170 limiting sub-basin and basic tectonic failures 171. 172 limiting mining area associated downwards · To illustrate the situation, the pothole 173 limiting the partial ladle and the pothole 174 inside the pan are marked ·

Claims (1)

SUBJECT OF THE INVENTION 225 536 A method of concentrated mining of two or more peer-to-peer physicians. units), or stacks of seams lying underneath each other and separated by a non-seam zone in areas of active mines and exploration fields or bearing sub-basins, marked by being down in existing locations (ISO, 161, 162, 163, · * ») with existing (11, 12, 13, 15,, «·) pits and wind (21, 22, 23, 25, ···) on the common horizon (5) below the non-seam zone (6), the pits will form a combined mining area (lal) with a new mining (14) pit and a wind (24) pit for the whole site, with an isolated wind system ( 120) and during the mining in the combined mining area (141), the steps are given by the time given by the coal riches of the other floors (71, 81, 82, ♦ · ♦ 841, 842, 843, »·») ·