CN112330480B - Accounting method for surface mine mining plan execution rate - Google Patents
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Abstract
The invention discloses an accounting method of an open-pit mine mining plan execution rate, and belongs to the technical field of open-pit mining. The invention comprises a yield element, a space element and a quality element, adopts a mining plan execution rate accounting method formed by three elements, realizes accurate accounting of the mining plan execution rate, simultaneously objectively reflects the mine mining plan compiling level and the execution effect, has unreasonable execution rate index completion value which is high, and brings a series of problems that the mining process control link is imperfect and the production cannot be completed according to the plan, and the mining plan execution rate accounting method is inconvenient to find the area where the goaf does not accord with the plan position, has larger quality fluctuation range. The invention can effectively standardize the mining behavior of the mine, improve the seriousness and the effectiveness of the mining plan execution, play an important role in keeping the long-term balanced and stable production of the mine, and provide a basis for taking targeted solving measures.
Description
Technical Field
The invention belongs to the technical field of surface mining, and particularly relates to an accounting method of an execution rate of a surface mine mining plan.
Background
The mine usually needs several years or decades from construction to excavation completion, and thus, comprehensive planning and arrangement are needed, especially, the characteristics of surface mine production, production objects and working conditions (mine quantity, grade, occurrence condition, surrounding rock characteristics, groundwater, climate and the like) are often changed, working sites are scattered and often moved, production links are more, and excavation work is a cyclic process from preparation to production and from production to new preparation, so that the establishment of a careful excavation plan is very important. On the basis of comprehensively considering the cooperation of process links of the strip mine, the development of mining engineering in each period of the mine is comprehensively arranged, so that manpower, materials and equipment are more reasonably used, and production tasks are balanced.
For surface mines, the mining planning and the planning are performed in a complementary manner. Although there are many studies about the mining planning method for strip mines at home and abroad, there are few studies on the mining planning execution rate accounting method. Some mines are provided with mining plan execution rate assessment indexes, but the execution rate indexes are high in a virtual way due to improper accounting methods, so that the due constraint effect is not achieved. The unreasonable plan execution rate accounting method makes the serious performance of plan execution greatly discounted, and seemingly, the mining execution rate index reaches or exceeds the assessment standard, but from the execution result, the output task is sometimes only completed, and the problems of inconsistent goaf and plan position, large quality fluctuation range and the like exist for a long time, so that the production cannot be completed according to the plan.
Disclosure of Invention
The invention aims to provide an accounting method for the execution rate of an open pit mine mining plan, which aims to solve the problem that the accounting method is unreasonable, so that the completion value of an execution rate index is high.
The technical scheme adopted by the invention is as follows:
the accounting method for the execution rate of the mining plan of the surface mine specifically comprises the following steps:
step 1, determining measurable data in three elements, namely a yield element, a space element and a quality element;
the yield elements comprise actual yield, planned yield, overspray yield, deviation rate and yield plan execution rate;
the space factors comprise actual goaf area yield, planned area yield, space conforming area yield, understory area yield, overstory area yield, space conforming rate and space planning execution rate;
the quality factors comprise ore pass ore removal amount, production amount which does not accord with control standards and quality plan execution rate;
step 2, calculating the deviation rate and the space coincidence rate;
step 3, if the deviation rate, the space coincidence rate and the production capacity which does not accord with the control standard exceed constraint conditions, carrying out deduction constraint on the designated data, and if the deviation rate, the space coincidence rate and the production capacity do not accord with the control standard, carrying out next calculation by using the original data;
wherein the deviation rate is within 10%, the actual yield is counted according to the planned yield, and when the deviation rate exceeds 10%, deduction constraint is carried out on the actual yield;
the space coincidence rate reaches 90% or above, the deduction constraint is not implemented on the space coincidence region yield, and if the space position coincidence rate is lower than 90%, the deduction constraint is implemented on the space coincidence region yield;
two or more consecutive sampled test data of a single drop shaft do not meet the control standard, and the production amount during the period of the test data which does not meet the control standard exceeds 2000 tons, the drop shaft production amount during the sampling is subjected to deduction constraint when planning execution rate accounting;
step 4, calculating the yield plan execution rate, the space plan execution rate and the quality plan execution rate according to the conditions;
and 5, calculating the mining plan execution rate according to the yield plan execution rate, the space plan execution rate and the quality plan execution rate.
Further, the measurable data in the three elements of the yield element, the space element and the quality element in the step 1 include actual yield, planned yield, actual goaf area yield, planned area yield, space conforming area yield, drop shaft ore yield and yield not conforming to the control standard;
wherein, the overspray yield=actual yield-planned yield, the undersensing regional yield=planned regional yield-spatially coincident regional yield, the overspray regional yield=actual goaf regional yield-spatially coincident regional yield.
Further, the following formula is adopted in the step 2 to calculate:
wherein I1: deviation rate, sign is;
p1: actual yield in t;
p2: planning yield in t;
wherein: p1> P2;
wherein I2: spatial coincidence rate, symbol is;
a: space accords with regional output, and the unit is t;
b: the undersampling area quantity is t;
further, the step 4 is calculated by the following formula:
wherein K1: yield plan execution rate, sign is;
p1: actual yield in t;
p2: planning yield in t;
e: the deviation rate exceeds the ultra-planned production capacity with the unit of t;
wherein K2: space plan execution rate, symbol is;
a: space accords with regional output, and the unit is t;
b: the undersampling area quantity is t;
c: the yield of an out-of-limit mining area with the out-of-limit spatial coincidence rate is given by the unit of t;
wherein K3: quality plan execution rate, symbol is;
q1: ore pass ore removal amount is t;
q2: throughput that does not meet control criteria in t;
further, the step 5 is calculated by the following formula:
wherein R: the execution rate of the mining plan is represented as the symbol;
k1: yield plan execution rate, sign is;
k2: space plan execution rate, symbol is;
k3: quality plan execution rate, sign%.
In summary, due to the adoption of the technical scheme, the beneficial effects of the invention are as follows:
according to the invention, a mining plan execution rate accounting method based on three elements of yield, quality and space is adopted, a scientific and reasonable strip mine mining plan execution rate accounting method is formulated, the mining plan programming level and execution effect can be objectively reflected, the problems existing in a mining process control link can be conveniently found, and a basis is provided for taking targeted solving measures.
Drawings
FIG. 1 is a flow chart of a method for accounting for surface mine mining plan execution rate provided by the present invention;
fig. 2 is a schematic plan view of the space factor plan execution.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Example 1
As shown in fig. 1-2, according to the steps of an accounting method of an open pit mine mining plan execution rate of the present invention, the mine mining plan execution rate is calculated.
(1) Determining measurable data in three elements, namely a yield element, a space element and a quality element:
the mining area of a certain month stope plan is provided with four areas of a west area, a southeast area, a south area and a northwest area, different quality control standards are formulated for the raw ore of a stope drop shaft according to the ore grade of each mining area and the production variety of the finished ore, and in order to achieve the quality control target, each mining area also needs to execute the well-sliding ore filling operation according to the ore allocation instruction in the actual production process.
The four mining areas were measured for a month with a planned production of 32 ten thousand tons and an actual production of 32.5 ten thousand tons at the end of the month. The specific implementation conditions are as follows:
(1) the planned yield of the western region is 10 ten thousand tons, the actual yield is 8.2 ten thousand tons, the space accords with the regional yield of 6.3 ten thousand tons, the yield of the out-of-limit mining region is 1.9 ten thousand tons, and the under-mining region quantity is 3.7 ten thousand tons; the ore in the western region mainly enters a No. 1 drop shaft, the CaO content control standard of the No. 1 drop shaft is 51% -53%, the No. 1 drop shaft has the problem that the quality of the No. 1 drop shaft does not reach the standard for a period of time, and the ore yield is 0.3 ten thousand tons;
(2) the planned output of southeast area is 6.8 ten thousand tons, the actual output is 7.1 ten thousand tons, the overstocked production is 0.3 ten thousand tons, the space accords with the 5.6 ten thousand tons of regional output, the yield of the overstocked region is 1.5 ten thousand tons, and the under-mining region quantity is 1.2 ten thousand tons; ores in southeast areas mainly enter a No. 2 drop shaft, caO content control standards of the No. 2 drop shaft are 50% -51.5%, and the No. 2 drop shaft does not have the problem of quality failure;
(3) the planned output of the south area is 11 ten thousand tons, the actual output is 11.4 ten thousand tons, the overstocked output is 0.4 ten thousand tons, the space accords with 9.8 ten thousand tons of regional output, the yield of the overstocked area is 1.6 ten thousand tons, and the under-mining area quantity is 1.2 ten thousand tons; ore in the south area mainly enters a 3# drop shaft, caO content control standard of the 3# drop shaft is 45% -48%, the 3# drop shaft in the last ten days of the month has the problem that the quality of the first period is not up to standard, the ore yield is 0.4 ten thousand tons, the 3# drop shaft in the last ten days of the month continuously has the problem that the quality of the second period is not up to standard, and the ore yield is 2.3 ten thousand tons;
(4) the planned output of the northwest area is 4.2 ten thousand tons, the actual output is 5.8 ten thousand tons, the overstocked area is 1.6 ten thousand tons, the space accords with the 3.9 ten thousand tons of the area output, the output of the overstocked area is 1.9 ten thousand tons, and the understocked area quantity is 0.3 ten thousand tons; ore mainly enters a No. 4 drop shaft in the northwest area, the CaO content control standard of the No. 4 drop shaft is 48-50.5%, the No. 4 drop shaft continuously has the problem that the quality of the No. 4 drop shaft in two periods does not reach the standard, and the ore yield is 2.1 ten thousand tons.
(2) Calculating the deviation rate of the yield elements and the space coincidence rate of the space elements:
(1) west region:
deviation rate:
spatial coincidence rate:
(2) southeast region:
deviation rate:
spatial coincidence rate:
(3) south region:
deviation rate:
spatial coincidence rate:
(4) northwest region:
deviation rate:
spatial coincidence rate:
(3) The deviation rate, the space conformity rate and the production capacity which does not meet the control standard exceed constraint conditions, deducting constraint is carried out on the designated data, and if the deviation rate, the space conformity rate and the production capacity which does not meet the control standard do not exceed constraint conditions, the next calculation is carried out by using the original data;
(1) the deviation rate is within 10%, the actual yield is counted according to the planned yield, and when the deviation rate exceeds 10%, the deduction constraint is implemented on the actual yield.
The actual yield of the Western region does not exceed the actual yield, and the deduction constraint is not implemented on the actual yield; the deviation rate of southeast area is 4.41%, the deviation rate of southeast area is 3.64%, and the deviation rate is not more than 10%, and the deduction constraint is not implemented on the actual yield; the deviation rate in the northwest area is 38.09 percent and exceeds 10 percent, and the deduction constraint is needed to be implemented on the actual yield.
(2) The space coincidence rate reaches 90% or above, the deduction constraint is not implemented on the space coincidence region yield, and if the space position coincidence rate is lower than 90%, the deduction constraint is implemented on the space coincidence region yield.
The space compliance rate of the west area is 63%, the space compliance rate of the southeast area is 82.35%, the space compliance rate of the south area is 89.09%, and the space compliance rate is not more than 90%, and the yield of the space compliance area is required to be subjected to deduction constraint; the space coincidence rate in the northwest region is 92.86 percent and exceeds 90 percent, and the deduction constraint is not carried out on the yield of the space coincidence region.
(3) Throughput that does not meet control criteria: if the test data of two or more consecutive shifts of a single drop shaft do not meet the control standard and the production amount during the period of the test data which does not meet the control standard exceeds 2000 tons, the drop constraint is imposed on the drop shaft yield during the sampling when the planned execution rate is calculated.
The first-stage quality of the moon and west district No. 1 drop shaft is not up to standard, the first-stage quality of the moon and west district No. 3 drop shaft is 0.4 ten thousand ton, the first-stage quality of the moon and west district No. 1 drop shaft is not up to standard, and the first-stage quality of the moon and west district No. 3 drop shaft is not up to standard, and the first-stage quality of the moon and west district No. 1 drop shaft is not up to standard, and the mineral yield is over 2000 ton; in the late 3# sliding well in the south area, the problem that the two periods of the sliding well cannot reach the standard occurs, the ore yield is 2.3 ten thousand tons, and the deduction constraint is implemented; the problem that the quality of the No. 2 drop shaft in the southeast area does not reach the standard does not occur, and the deduction constraint is not implemented; the problem that the quality of the No. 4 drop shaft in the northwest area continuously fails to reach the standard in two stages, the ore yield is 2.1 ten thousand tons during the period, and the deduction constraint is implemented.
(4) Calculating yield plan execution rate, space plan execution rate and quality plan execution rate according to the above conditions:
substituting into a calculation formula to obtain the execution rate of the yield plan in the current month:
substituting into a calculation formula to obtain the execution rate of the space plan in the current month:
substituting into a calculation formula to obtain the execution rate of the current month quality plan:
(5) Calculating the mining plan execution rate according to the yield plan execution rate, the space plan execution rate and the quality plan execution rate:
the month yield plan execution rate 89.37%, the space plan execution rate 64.37%, the quality plan execution rate 86.46% are obtained by substituting into a calculation formula, and the current month mining plan execution rate is obtained:
the final execution rate of the mining plan in the month is 80.07%.
Production practices prove that the accounting method can effectively standardize mine mining behaviors, can improve the seriousness and effectiveness of mining plan execution, plays an important role in keeping long-term balanced and stable mine production, and has popularization and application values.
The foregoing description of the preferred embodiment of the invention is not intended to limit the invention to the particular form disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.
Claims (2)
1. The accounting method of the surface mine mining plan execution rate is characterized by comprising the following steps of:
step 1, determining measurable data in three elements, namely a yield element, a space element and a quality element;
the yield elements comprise actual yield, planned yield, overspray yield, deviation rate and yield plan execution rate;
the space factors comprise actual goaf area yield, planned area yield, space conforming area yield, understory area yield, overstory area yield, space conforming rate and space planning execution rate;
the quality factors comprise ore pass ore removal amount, production amount which does not accord with control standards and quality plan execution rate;
step 2, calculating the deviation rate and the space coincidence rate;
step 3, if the deviation rate, the space coincidence rate and the production capacity which does not accord with the control standard exceed constraint conditions, carrying out deduction constraint on the designated data, and if the deviation rate, the space coincidence rate and the production capacity do not accord with the control standard, carrying out next calculation by using the original data;
wherein the deviation rate is within 10%, the actual yield is counted according to the planned yield, and when the deviation rate exceeds 10%, deduction constraint is carried out on the actual yield;
the space coincidence rate reaches 90% or above, the deduction constraint is not carried out on the space coincidence region yield, and if the space position coincidence rate is lower than 90%, the deduction constraint is carried out on the space coincidence region yield;
two or more consecutive sampled test data of a single drop shaft do not meet the control standard, and the production amount during the period of the test data which does not meet the control standard exceeds 2000 tons, the drop shaft production amount during the sampling is subjected to deduction constraint when planning execution rate accounting;
step 4, calculating the yield plan execution rate, the space plan execution rate and the quality plan execution rate according to the conditions;
step 5, calculating the mining plan execution rate according to the yield plan execution rate, the space plan execution rate and the quality plan execution rate;
step 2 is calculated by the following formula:
wherein I is 1 : deviation rate, sign is;
P 1 : actual yield in t;
P 2 : planning yield in t;
wherein: p (P) 1 >P 2 ；
Wherein I is 2 : spatial coincidence rate, symbol is;
a: space accords with regional output, and the unit is t;
b: the undersampling area quantity is t;
the step 4 adopts the following formula to calculate:
wherein K is 1 : yield plan execution rate, sign is;
P 1 : actual yield in t;
P 2 : planning yield in t;
e: the deviation rate exceeds the ultra-planned production capacity with the unit of t;
wherein K is 2 : space plan execution rate, symbol is;
a: space accords with regional output, and the unit is t;
b: the undersampling area quantity is t;
c: the yield of an out-of-limit mining area with the out-of-limit spatial coincidence rate is given by the unit of t;
wherein K is 3 : quality plan execution rate, symbol is;
Q 1 : ore pass ore removal amount is t;
Q 2 : throughput that does not meet control criteria in t;
the step 5 adopts the following formula to calculate:
wherein R: the execution rate of the mining plan is represented as the symbol;
K 1 : yield plan execution rate, sign is;
K 2 : space plan execution rate, symbol is;
K 3 : quality plan execution rate, sign%.
2. The method according to claim 1, wherein the data measurable in the three elements of yield, space and quality in step 1 include actual yield, planned yield, actual goaf area yield, planned area yield, spatially consistent area yield, drop shaft yield, yield not consistent with control criteria;
wherein, the overspray yield=actual yield-planned yield, the undersensing regional yield=planned regional yield-spatially coincident regional yield, the overspray regional yield=actual goaf regional yield-spatially coincident regional yield.
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| CN114511240A (en) * | 2022-02-21 | 2022-05-17 | 乌拉特后旗紫金矿业有限公司 | Mine excavation plan generation method and storage medium |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104835074A (en) * | 2015-02-11 | 2015-08-12 | 中南大学 | Ore blending method of strip mine production |
| CN106560865A (en) * | 2016-08-25 | 2017-04-12 | 中国黄金集团内蒙古矿业有限公司 | Three big geologic models based on daily production correlation |
| CN108090695A (en) * | 2018-01-04 | 2018-05-29 | 中国有色金属长沙勘察设计研究院有限公司 | A kind of exploitation planing method in the more mining areas of Accumulative Bauxite |
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