Mineral deposit development method

FIELD: mining.

SUBSTANCE: transportation of mineral deposit crushed with a combine is performed by means of a self-propelled wagon to a self-moving snaking conveyer, the loading part of which is located in a chamber, and the unloading part is located above an ore-passing well, via which the mineral deposit is transported and unloaded to the ore-passing well; with that, movement of the conveyor to the next well is performed when transportation length of mineral deposit with the self-propelled wagon in the chamber achieves maximum length determined as per mathematical expression. Limit length of the chamber, at which continuous operation of the combine is provided by means of a hopper-loading elevator, the self-propelled wagon and the self-moving snaking conveyor, is calculated as per the mathematical expression.

EFFECT: improving working capacity of a combine complex.

2 cl, 4 dwg

 

The invention relates to the mining industry and can be used in the development of minerals with a continuous delivery from the bottom of the camera.

Known technology development sylvinite seams at the Verkhnekamskoe potash Deposit, which repulsed harvester minerals transported from the bottom of the camera to the precinct of the conveyor using self-propelled curving conveyor, installed directly behind the combine harvester (Koshurnikov, NS the Problem of creating continuous technology development sylvinite seams at the Verkhnekamskoe potash Deposit / Nscolorwell. - Izv. Higher education institutions. Horn. zhurn., 2007. No. 5. - P.3-7).

However, this method is difficult to implement, as it requires a constant expansion of the pipeline to ensure continuous transportation of ore to the precinct pipeline.

Closest to the proposed technical solution is the technology of sewage treatment works using combine complexes with means for continuous delivery (conveyors), in which repulsed harvester minerals transported using one to three self-propelled curving conveyors, installed behind the harvester, to rudowski well with subsequent unloading (Koshurnikov, NS Technology sewage treatment works using combine complexes with among the properties of continuous delivery/ NS Koshurnikov. - Izv. Higher education institutions. Horn. zhurn., 2007. No. 7. - P.17-24).

The main disadvantage of this method of transporting the ore from the bottom is the inability of the organization unloading repulsed mineral directly on rudospuskov well with self-propelled curving conveyor constant length, which moves following podvigina slaughter.

The technical result of the invention is to increase the operational productivity of the harvester complex by ensuring continuous operation of the harvester in the course of the camera along its entire length.

This technical result is achieved in that in the method of mining of minerals, including combine the refinement of the reservoir chambers, the transportation of minerals by using a hopper-loader, self-propelled self-propelled carriage and curving conveyor, unloading of minerals in the hole, transportation repulsed mineral perform self-propelled self-propelled carriage before curving of the conveyor, part of which is placed in the chamber, and a discharge - over rudowski well, by which minerals are transported and unloaded in rudospuskov well, this shifting of the conveyor to the next well is produced when the Lina transportation of minerals self-propelled carriage in the chamber reaches the maximum length, equal to:

and limit the length of the camera, which ensures continuous operation of the harvester, with the use of a bunker-loader, self-propelled self-propelled carriage and curving conveyor, calculated by the formula:

where LStthe maximum length of the transportation of minerals by self-propelled carriage, which ensures continuous operation of the harvester;

- the maximum length of the camera, which ensures continuous operation of the harvester self-propelled self-propelled carriage and curving conveyor, m;

LG.K.- length self-propelled curving conveyor, m;

Lcomb.+LBP- length harvester and hopper loader, m;

n is the number of conveyors in the chamber;

ν - speed self-propelled cars, m/min;

qn- capacity hopper-loader, t;

Qto- performance harvester, t/min;

tRVthe time of unloading the car, min;

LSLE- the distance between rudowski wells, M.

If necessary, transportation of minerals carried out using several self-propelled curving conveyors.

The essence of the method is illustrated in the drawing and, which figure 1 shows a scheme for refining the initial portion of the camera; figure 2 - diagram of the complete the main part of the camera with a partial occupancy of the conveyor in the chamber; figure 3 - testing the final section of the camera with the placement of the pipeline in the camera at the maximum possible length; figure 4 is a chart of the changes in operating performance combine complex of length delivery.

In the drawings denote: 1 - heading-Shearer; 2 - hopper-loader; 3 - self-propelled wagon; 4 - self-propelled curving conveyor; 5 - rudospuski well; 6 - treatment chamber; 7 - excavation of the roadway; 8 - curve performance of the transport system of length delivery, including hopper loader and self-propelled carriage; 9 - curve performance of the transport system of length delivery, including hopper loader, self-propelled self-propelled carriage and curving the pipeline.

The method is as follows.

The refinement of the treatment chamber 6 are step by step.

At the first stage (Figure 1) combine complex in structure harvester 1, the hopper-loader 2 and the self-propelled carriage 3 carries out the testing of the initial part of the treatment chamber 6 on the maximum length of the camera LI, which provides continuous operation of the harvester, as defined by the formula:

where LIthe maximum length of the camera, which ensures continuous operation of the harvester with the transportation of minerals by self-propelled carriage, m;

Lcomb.+LBP- length harvester and hopper loader, m;

ν - speed self-propelled cars, m/min;

qn- capacity hopper-loader, t;

Qto- performance harvester, t/min;

Lthe loading.- the distance from the mouth of the treatment chamber to the place of unloading self-propelled carriage in rudospuskov well, m;

tRVthe time of unloading the car, minutes

Thus repulsed harvester 1 minerals comes in a conveyor hopper 2 from which it overload in a self-propelled carriage 3, transported and unloaded at the nearest rudospuskov hole 5, pre-drilled on the excavation roadway 7. This curving of the self-propelled conveyor 4 is not involved in the transport of minerals and is located in the excavation roadway 7.

When further development of the chamber 6 to a length greater than the maximum length of the camera, which ensures continuous operation of the harvester with the transportation of minerals by self-propelled carriage LIthe length of the transportation of minerals by self-propelled carriage LStincreases, respectively, increases the time to deliver otbi the CSOs minerals from the bottom of the camera to rudowski well, and the harvester begins to stand in anticipation of empty self-propelled carriage.

To ensure continuous operation of the harvester 1 (Figure 2), used self-propelled curving conveyor 4, which move with the excavation of the drift 7 directly to the treatment chamber 6, while the boot part of the conveyor is placed in the chamber so that the distance from the bottom of the camera to the conveyor provided the ability to accommodate a harvester, a hopper-loader and self-propelled carriage and unloading part on the excavation roadway over rudowski well 5.

Transportation repulsed minerals from the bottom of the camera is as follows. Repulsed minerals combine 1 overload through the hopper-loader 2 in a self-propelled carriage 3, which delivers minerals to self curving conveyor 4, by which it is transported to rudowski wells 5.

With a maximum length of transport of LStmineral self-propelled carriage 3 from the place of loading of minerals in the self-propelled carriage before curving self-propelled conveyor 4 (Fig 3), which provides continuous operation of the combine, carry out the shifting of the self-propelled curving conveyor in the chamber 6 with the installation of the unloading branch over the next rudebusch the th hole 5 at a distance of L SLElead the further development of the camera to the maximum length for a continuous operation of the harvester.

In this case, the maximum length of transportation is determined from the relation:

,

where LStthe maximum length of the transportation of minerals by self-propelled carriage, which ensures continuous operation of the harvester;

ν - speed self-propelled cars, m/min;

qn- capacity hopper-loader, t;

Qto- performance harvester, t/min;

tRVthe time of unloading the car, minutes

The maximum length of the camera, where possible continuous operation combine complex using hopper-loader, self-propelled self-propelled carriage and curving conveyor is determined by the formula:

where- the maximum length of the camera, which ensures continuous operation of the harvester self-propelled self-propelled carriage and curving conveyor, m;

LG.K.- length self-propelled curving conveyor, m;

Lcomb.+LBP- length harvester and hopper loader, m;

n is the number of conveyors in the chamber;

ν - speed self-propelled cars, m/min;

q n- capacity hopper-loader, t;

Qto- performance harvester, t/min;

tRVthe time of unloading the car, min;

LSLE- the distance between rudowski wells, M.

If the calculated (design) chamber length is significantly greater maximum length camerausing one self-propelled curving conveyor for transporting minerals may use several consecutive (n-number) self-propelled curving conveyors.

The length of the working chamber under the condition of continuous operation combine complex using a single self-propelled curving conveyor can reach 250-320 m, when using two or three conveyors - 400-460 m and 550-600 m, respectively.

The effectiveness of the proposed method is confirmed by the graph of the performance of the transport system (Q) distance delivery (Lshortcuts) combine complex with unloading of minerals in rudospuskov well (Figure 4).

The chart shows that the use of combine complex with one self-propelled curving conveyor can increase the length of the area of continuous operation of the harvester with LIto or on the conveyor length Lenv.

The application of the proposed method of mining mineral helps to ensure continuous operation of the harvester along the length of the chamber and, consequently, to increase operational efficiency combine complex.

Method development of minerals, including combine the refinement of the reservoir chambers, the transportation of minerals by using a hopper-loader, self-propelled carriage and curving self-propelled conveyor, unloading of minerals in the borehole, characterized in that the transport repulsed mineral perform self-propelled self-propelled carriage before curving of the conveyor, part of which is placed in the chamber, and a discharge - over rudowski well, by which minerals are transported and unloaded in rudospuskov well, this shifting of the conveyor to the next well is produced when the length of the transportation of minerals by self-propelled carriage in the chamber reaches a maximum length equal to

and limit the length of the camera, which ensures continuous operation of the harvester using a hopper-loader, self-propelled self-propelled carriage and curving conveyor is, calculated by the formula

where LStthe maximum length of the transportation of minerals by self-propelled carriage, which ensures continuous operation of the harvester;
- the maximum length of the camera, which ensures continuous operation of the harvester self-propelled self-propelled carriage and curving conveyor, m;
LGK- length self-propelled curving conveyor, m;
Lcomb.+LBP- length harvester and hopper loader, m;
n is the number of conveyors in the chamber;
ν - speed self-propelled cars, m/min;
qn- capacity hopper-loader, t;
Qto- performance harvester, t/min;
tRVthe time of unloading the car, min;
LSLE- the distance between rudowski wells, M.

2. The method according to claim 1, characterized in that the transportation of minerals carried out using n number of self-propelled curving conveyors.



 

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