RU2001278C1 - Shaft double-skip inclined transport working - Google Patents

Description

novany normative documents, meets the criterion of novelty.

Therefore, the proposed solution is characterized by the presence of new distinctive features and a new set of features providing a new positive effect that meets the criterion of significant differences.

Moreover, the regulatory clearances between the working skips and the fastening of the two-skip inclined working in sections S2 and Z3 are observed in accordance with the safety rules (see Fig. 1 and table parameters).

Fig. 1 is a schematic diagram of the formation of a mine double-skip inclined transport excavation; figure 2 - structural parameters of the formation of the skip in section I.

In the process of formation and operation of a mine double-inclined inclined transport mine between the loading and unloading points, vehicles (skips), which are conditionally shown in positions I and II (Fig. 2), move along a rail track, the width of which in straight sections and on the very junction I is equal to the width b of the skip. In order to warm up oncoming skips in the central part of the inclined ramp, a symmetrical junction I is arranged. When shuttling the skips, the left skip falls only to the left junction, and the right skip only to the right junction (Fig. 2).

With the oncoming movement of the skips in position I-I between loading 4 and unloading 5 points (Fig. 1), overloading of their cargo ropes (they are not shown conditionally in Fig. 2) is excluded, since the distinguishing features of the parameters a. B, c and I 25a 25b 25c are clearly justified by regulatory documents and allow the trouble-free operation of oncoming moving skips between points 4 and 5 when transporting rock mass (coal, rock, ore) when forming a double-skip inclined transport mine.

When implementing the inventive device, the laying of the fourth thread of the rail track in sections above and below the passage I is excluded (see Fig. 1). In these areas, the rail track is laid in three threads, instead of four. This makes it possible to exclude the use of an expensive design cross-section Si (see Fig. 1), which achieves a significant reduction in the volume of mining and capital costs in the formation of a two-skip inclined transport excavation with cross sections S2 and 5h

(the latter is only on the section of exit I). The standard cost of carrying out 1 shoulder strap, m inclined workout with section S2 is two times lower than the cost of 1 shoulder strap, m such

the same workings with a cross section of Si. which provides a significant economic effect in the mining industry when conducting double-skip inclined transport workings with an angle

0 drops above 17 °, where the use of conveyor transport is unacceptable. If the skip width b is equal to the width a of the track gauge (see Fig. 2), the value of the interblock c in the section of the junction I must satisfy the condition with a b. Under this condition, the oncoming skip entry into the slot I 25a 25b 25s and the skip exit from it during shuttle operation of the oncoming skip between loading points 4 and unloading 5

0 eliminates emergency situations associated with skips coming off the rails and overwhelming of hoisting ropes. So with a standard size skip with a width of b 1250 mm, the estimated length of the driveway I will be 25 s, i.e. 31.25

5 m. In section I - 31.25 m, its cross-section increases to section 5z, which ensures a safe gap between the oncoming skips (position II-II in figure 2) and the support along the width of the slope

0 output (see dimensions in the table).

The safe operation of the skips in the section above and below the passage Г, where skips are not allowed to be warped up (as occurs in the section of the I passage), is ensured by the corresponding gaps between the moving skip and the support on both sides of the cross section of the S2 5z Si excavation and the conditions a b (see table and figure 1).

0 In the formation of a mine double-skip inclined transport excavation, it is planned to carry out the races 6 and 7 (see Fig. 1), which are necessary both for conducting and repairing the inclined excavation, and

5 for replacing skips therein during operation.

The proposed device can be implemented at any mining enterprise in preparation for the operation of the underlying horizon. The use of the proposed device in comparison with the prototype provides economic efficiency while reducing the volume of mining and capital costs.

5

(56) Safety regulations in coal and shale mines. M .: Subsoil. 1986, p. 88.

Technological schemes for conducting workings using the drilling and blasting method VNII-OMSIS, Kharkov, 1988. p.37.

Claims (2)

1. MINE DOUBLE SKIPED INCLINED TRANSPORT PRODUCTION, including secured walls and a vault, loading and unloading points located at the ends of the mine, and rail tracks to move the skipop along the entire length of the mine, characterized in that, in order to reduce the volume of mining and capital costs during the formation, the development is made of variable cross-section, while in the middle part of the development a section is made, long, equal to 25 a, where a is the rail width gauge is equal to the width of the skip, and a width equal to 0.8 - 0.9 of the design section of the development, and from the side of the loading and unloading points the width of the development is 0.6 - 0.7 from its design section. 2. The development according to claim 1. characterized in that in the middle section of the run, a run is made due to bifurcation of the central thread of the rail to a value equal to c equal to the width of the rail track or skip, and rail tracks from opposite sides of the run along the entire length are laid in three threads. gmshmt 1 11 infcb L / Figs -tA-v -J-V- Fig 2