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Mining planning method of accumulated bauxite multi-mining area

A bauxite and planning technology, applied in the field of mining, can solve problems such as fuzzy variables, difficult objective functions, and no solution, and achieve the effect of reducing the number of variables and reducing complexity

Active Publication Date: 2018-05-29
CHINESE NONFERROUS METAL SURVEY & DESIGN INSTITUE OF CHANGSHA
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  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to provide a mining planning method for multi-mineral accumulation-type bauxite mines. The present invention solves the problems of difficult objective function and ambiguous variables according to the constraints that need to be considered during production and the priority order of the designated stope after mining; In order to solve the problem of unsolvable planning, a penalty function is introduced, and the variables are classified according to the objective function, which reduces the complexity of the iterative calculation of the entire planning solution

Method used

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Embodiment 1

[0049] A mining planning method for multiple mining areas of accumulation-type bauxite. The mining planning factors include: transportation distance, stope mineable volume, ore supply requirements, and other specific production requirements, etc. For specific logic diagrams, see figure 1 . The method of this embodiment specifically includes the following steps:

[0050] The first step: according to the planned target value (including ore volume, grade and ore content rate), take the ore unloading platform as the target point, and take the minimum total haul distance as the target to select stopes according to the distance of the haul distance (on a main road The order from near to far is selected according to the principle that the annual average transportation distance increases year by year; stopes include stopes automatically selected by the system and / or stopes designated by production management personnel; when re-selecting stopes, a mine can be used A stope with a large...

Embodiment 2

[0101] By the method of embodiment 1, carry out data test application, the result of application is as follows:

[0102] The stope data available for planning before calculation is shown in Table 1:

[0103] Table 1 Statistical table of stope data

[0104] stope number

[0105] Set target value: monthly target ore volume is 500,000 tons, constraints: (Al 2 o 3 (%)) A1=59%, (Al / Si) A2=12.5, A3=13.5, wherein number 26-2-84 is the stope that designates mining and finishes, and the result calculated by the method of the present invention is as table 2:

[0106] Table 2 Calculation results

[0107] Planned mining stope number

[0108] In the end, the actual mining qualified ore volume is 498,521.04 tons (the actual mining qualified ore volume of the five stopes is summed), and the difference is 1478.96 tons. The general method is to increase the target ore volume for the next month to compensate, or it can be Compensation shall be carried out in other ways, ...

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Abstract

The invention provides a mining planning method of an accumulated bauxite multi-mining area. According to the constraint conditions which need to be considered during production and the mining priority of specified stopes, before iteration, the calculating variables after the specified stopes are mined are decomposed, the constraint calculation result after the specified stopes are mined is decomposed to participate in each time of iteration, it is ensured that the optimal solution conforms to the practice, the problems that an objective function is difficult, and variables are fuzzy are solved, a model is conveniently called through a computer simulating method in the actual application process, and planning calculation is automatically conducted.

Description

technical field [0001] The invention relates to the technical field of mining, in particular to a method for mining planning of accumulation-type bauxite multi-mine areas. Background technique [0002] Accumulative bauxite is distributed in Fengcong injection land, Fenglin valley and slope areas. The plane shape of the ore body is complex, the volume of the ore body is small, and there are many distribution points. The mine is suitable for open-pit mining and road transportation development. The mining technology includes loader hydraulic backhoe, bulldozer hydraulic backhoe and bulldozer-loader mining technology. [0003] Mine mining plan is the basis for guiding mine production. Planning is an indispensable and important part of mine production management. How to determine the mining objects and their mining volume in each production period, and how to realize the renewal of mine stope resources will be related to The mining effect of the entire mine. [0004] At presen...

Claims

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Application Information

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IPC IPC(8): G06Q10/06G06Q50/02
CPCG06Q10/06313G06Q10/06316G06Q50/02
Inventor 粟闯杜年春吴松林熊明辉
Owner CHINESE NONFERROUS METAL SURVEY & DESIGN INSTITUE OF CHANGSHA
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