CN110500096B - Method for determining production scale of hard rock type uranium mine - Google Patents
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 68
- 229910052770 Uranium Inorganic materials 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims abstract description 35
- JFALSRSLKYAFGM-UHFFFAOYSA-N uranium(0) Chemical compound [U] JFALSRSLKYAFGM-UHFFFAOYSA-N 0.000 title claims abstract description 35
- 239000011435 rock Substances 0.000 title claims abstract description 20
- 238000011084 recovery Methods 0.000 claims abstract description 10
- 238000005065 mining Methods 0.000 claims description 26
- 238000013461 design Methods 0.000 claims description 17
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 10
- 239000011707 mineral Substances 0.000 claims description 10
- 238000010790 dilution Methods 0.000 claims description 6
- 239000012895 dilution Substances 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000007405 data analysis Methods 0.000 claims description 3
- 238000004364 calculation method Methods 0.000 abstract description 11
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000011161 development Methods 0.000 abstract description 2
- 238000011160 research Methods 0.000 description 4
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 3
- 239000010931 gold Substances 0.000 description 3
- 229910052737 gold Inorganic materials 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000005272 metallurgy Methods 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000000556 factor analysis Methods 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000007619 statistical method Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C41/00—Methods of underground or surface mining; Layouts therefor
- E21C41/16—Methods of underground mining; Layouts therefor
- E21C41/22—Methods of underground mining; Layouts therefor for ores, e.g. mining placers
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Abstract
The invention relates to the technical field of hard rock type uranium mine production scale determination, and particularly discloses a hard rock type uranium mine production scale determination method. The method comprises the following steps: 1. acquiring corresponding mine recovery reserves by using the existing geological exploration data of the ore deposit; 2. determining the vertical annual descending speed of a mine according to the ore body characteristics of the ore deposit; 3. acquiring the height of a mine stoping space by using the existing geological exploration data of the ore deposit; 4. determining the production scale of the obtained mine according to the mine stoping reserve, the vertical annual descending speed of the mine and the mine stoping space height obtained in the step; the method for determining the production scale of the hard rock type uranium mine has the advantages of few parameters, simplicity and convenience in calculation, reliable results and the like, and can be used for determining the scale of the hard rock type uranium mine by establishing a rational production scale model of the uranium mine and providing reference for development and utilization of the mine.
Description
Technical Field
The invention belongs to the technical field of hard rock type uranium mine production scale determination, and particularly relates to a hard rock type uranium mine production scale determination method.
Background
The method for determining the production scale of the metallurgical mine mainly adopts a calculation method of the former Soviet Union in China, but because the resource conditions of China are poor, the management level is low, and the mining technology and the mine equipment are backward, a plurality of mines put into production for years can not reach the production all the time, and even can only reach half of the design scale. The research results in China are summarized, and four different ways are mainly used for determining the production scale of the mine: technical analysis, economic analysis, statistical analysis, and comprehensive factor analysis. The method for calculating the production scale of the mine in the metallurgical pit in China mainly comprises the steps of calculating according to the annual descent speed of mine mining, calculating according to a mining intensity method, calculating according to the number of ore distributable blocks, calculating according to the economic reasonable mine service life, calculating according to the new level preparation time and determining the production capacity of the mine by using a reserve power method.
The reasonable scale calculation method of comparatively advocated mine economy in developed western countries is a formula proposed by U.S. mining engineers h.k. taylor in 1986 for the optimal productivity of mines, and is generally called taylor formula. The Taylor formula is a matching relation between the deposit reserves summarized by Taylor according to years of design experience of the Taylor and reasonable mine production scale and mine economic life, is an experience formula which is practical, simple and practical, and in industrially developed countries, the actual life of the mine is quite consistent with the result calculated by the Taylor formula; in developing countries, the life of a mine calculated by the taylor formula is 20% shorter than the actual life of the mine. In addition, the foreign countries also pay great attention to the research on the relationship between the annual mining decline speed of the mine and the reasonable mine scale. According to actual experience of numerous mines, the recommended annual descent speed of the mine is 25-40 m in the United states of Hard Rock mine's Handbook, and the optimal annual vertical descent speed of the mine is considered to be 30m in the Seo gold mine according to the relationship between stoping, mining accuracy and equipment efficiency. Then the annual decline speed is multiplied by the strike length and the thickness of the mineral deposit of the mine to be evaluated, so that the reasonable production scale of the mine can be quickly predicted.
The method for calculating the production capacity of the metal mine is various, the production capacity calculation formulas are mainly summarized and summarized by the characteristics of metallurgy, nonferrous metal and gold mines, and the formulas are mainly referred to for the calculation of the production capacity of the uranium mine at present. Because the selection of calculation formulas and calculation parameters in different industries is different, the mine production capacity calculated by the uranium mine by using the formulas is generally large, so that the actual production scale of the uranium deposit is difficult to reach the design scale. Particularly, in the project proposal compiling stage, the construction period is very short, the working degree is shallow, and the research on the production process is not deep, so that the determined production scale of the mine is often not in line with the objective actual conditions and is often questioned by all parties, and the determined production scale can not be changed after the project proposal is repeated. Therefore, the subsequent feasibility research and the production scale demonstration work in the initial design stage are very passive and strong, sometimes, the calculated results of different personnel are greatly different even under the same condition, and the design file lacks due scientificity and seriousness. The hard rock uranium mine in China has the characteristics of complex geological structure of ore deposit, small ore body, large form grade change, unclear ore rock boundary, short working time and low working efficiency, and the physical exploration is required for finding the edge. At present, a production scale calculation formula adopted in metal mine design is mainly summarized and summarized by the characteristics of metallurgical mines, non-ferrous mines and gold mines, is not suitable for uranium deposit, the actual production scale is difficult to reach the design scale, and the uranium deposit has to be modified in production practice, so that the production is delayed, a large amount of funds are wasted, and the economic benefit of enterprises and the national natural uranium production plan are influenced.
In order to quickly and reasonably determine the feasible production scale in the early stage planning or project recommendation stage of uranium mining and metallurgy projects, the actual production scale of uranium mines developed and built in China over the years and the design production are compared and researched, main factors influencing the production scale of the mines are analyzed, a simple and feasible method is screened from the existing mine production scale calculation method, actual data is used for fitting, relevant technical parameters are optimized, a simple and feasible calculation model is provided for quickly and accurately determining the reasonable production scale in the early stage consultation stage of uranium deposits in China, the work of determining the production scale of the mines in the early stage work of the uranium mining and metallurgy projects is quick and convenient, and the result is reasonable and feasible.
Disclosure of Invention
The invention aims to provide a method for determining the production scale of a hard rock type uranium mine, which can be used for fitting by using the existing actual data, optimizing related technical parameters and providing a simple and feasible evaluation method for determining the reasonable production scale quickly and accurately in the early stage consultation stage of uranium deposits in China.
The technical scheme of the invention is as follows: a method for determining production scale of a hard rock type uranium mine specifically comprises the following steps:
step 1, acquiring corresponding mine stoping reserves by using the existing geological exploration data of the ore deposit;
step 2, determining the vertical annual descending speed of a mine according to the ore body characteristics of the ore deposit;
step 3, acquiring the height of a mining space of a mine by using the existing geological exploration data of the ore deposit;
step 4, determining the production scale of the obtained mine according to the mine stoping reserve, the mine vertical annual descent speed and the mine stoping space height obtained in the step;
mine stoping reserve Q obtained by the stepshMine shaftThe annual descending speed V and the mine stoping space height H are obtained, and the mine production scale A is as follows:
wherein A is the reasonable production scale of the mine, and the unit is ten thousand t/a; qhThe unit is ten thousand t for the mine recovery reserve; h is the height of the mining space of the mine, and the unit is m; v is the vertical annual descent speed in m/a.
The step 1 of obtaining the mine stoping reserve comprises the following specific steps:
step 1.1, collecting geological exploration data of a mineral deposit with a to-be-determined production scale to obtain the geological resource reserve of the mineral deposit;
step 1.2, acquiring the resource reserves of design utilization;
step 1.3, on the basis of considering the loss rate and the dilution rate in the process of mining the ore deposit, carrying out data conversion on the designed and utilized resource reserves to obtain the stope reserves of the mine;
the concrete formula for converting the designed and utilized resource reserves into the mine recovery reserves is as follows:
wherein Q ishThe reserve is the mine recovery reserve; qsUtilizing resource reserves for design; alpha is the loss rate of the mine; beta is the dilution rate of the mine.
The specific steps for determining the vertical annual descending speed of the mine in the step 2 are as follows:
step 2.1, acquiring the ore amount and the inclination angle value of main ore bodies in the ore deposit according to geological exploration data of the ore deposit;
step 2.2, obtaining the average inclination angle of the ore body by using a weighted average method;
step 2.3, obtaining the vertical annual descending speed of the mine in the ore body according to the average inclination angle of the ore body;
for ore bodies with the average inclination angle of more than 30 degrees, the vertical annual descending speed V of the mine is 10.6 m/a; for a slowly inclined ore body with the average inclination angle of the ore body smaller than 30 degrees, taking the vertical annual descending speed V of a mine as 7.5 m/a; when the ore body with the steep inclination is provided as well as the ore body with the gentle inclination, the average value of the two ore bodies can be taken, namely the vertical annual descending speed V of the mine is 9.1 m/a.
The specific steps of obtaining the mine stoping space height in the step 3 are as follows:
step 3.1, acquiring occurrence elevation parameters of ore bodies according to geological exploration data of ore deposits;
3.2, obtaining the mining space height of the mine by using the obtained ore body occurrence elevation parameters;
and performing data analysis on the obtained ore body occurrence elevation parameters to obtain the height H of the mining space of the mine as follows:
H＝h1-h2
wherein H is the height of the mining space of the mine; h is1Locating the vertical highest stoping elevation of a mine; h is2The lowest vertical extraction elevation of the mine.
The specific steps of obtaining the reserve of the geological resources of the ore deposit in the step 1.1 are as follows:
collecting geological exploration data of the mineral deposit with the production scale to be determined, obtaining ascertained and controlled economic basic reserves and the built-in economic resource amount in the main types of the resource reserves, and using the inferred built-in economic resource amount partially; the inferred credibility coefficient of the intrinsic economic resource quantity can be selected to be 0.5-0.8 according to the occurrence characteristics and the exploration degree of the ore deposit.
The specific steps of obtaining the resource reserves for designing and utilizing in the step 1.2 are as follows:
and acquiring the sum of the design utilization resource reserve as the economic basic reserve, the internal economic resource amount of the heuristic control and the inferred internal economic resource amount and the reliability coefficient.
The step 2.2 of obtaining the average dip angle of the ore body comprises the following specific steps:
and obtaining the average inclination angle gamma of the ore body by using a weighted average method as follows:
wherein, TnIs the ore amount of the nth main ore body, gammanIs the inclination angle of the nth main ore body.
The invention has the following remarkable effects: the method for determining the production scale of the hard rock type uranium mine has the advantages of few parameters, simplicity and convenience in calculation, reliable result and the like, and can be used for determining the scale of the hard uranium mine by establishing a reasonable production scale model of the uranium mine and providing a reference for development and utilization of the mine; the method fills the empty energy of the existing method for determining the production scale of the hard uranium ore, and the production scale of the hard uranium mine can be simply, quickly and accurately obtained by the method.
Drawings
Fig. 1 is a flow chart of a method for determining production scale of a hard rock type uranium mine according to the invention.
Detailed Description
The invention is described in further detail below with reference to the figures and the embodiments.
As shown in fig. 1, a method for determining the production scale of a hard rock type uranium mine specifically includes the following steps:
step 1, acquiring corresponding mine stoping reserves by using the existing geological exploration data of the ore deposit;
step 1.1, collecting geological exploration data of a mineral deposit with a to-be-determined production scale to obtain the geological resource reserve of the mineral deposit;
collecting geological exploration data of the mineral deposit with the production scale to be determined, obtaining ascertained and controlled economic basic reserves and the built-in economic resource amount in the main types of the resource reserves, and using the inferred built-in economic resource amount partially; the inferred credibility coefficient of the intrinsic economic resource quantity can be selected to be 0.5-0.8 according to the occurrence characteristics and the exploration degree of the ore deposit;
step 1.2, acquiring the resource reserves of design utilization;
acquiring the design utilization resource reserve as the sum of the economic basic reserve, the internal economic resource amount of the heuristic control and the inferred internal economic resource amount and the reliability coefficient;
step 1.3, on the basis of considering the loss rate and the dilution rate in the process of mining the ore deposit, carrying out data conversion on the designed and utilized resource reserves to obtain the stope reserves of the mine;
the concrete formula for converting the designed and utilized resource reserves into the mine recovery reserves is as follows:
wherein Q ishThe reserve is the mine recovery reserve; qsUtilizing resource reserves for design; alpha is the loss rate of the mine; beta is the dilution rate of the mine;
step 2, determining the vertical annual descending speed of a mine according to the ore body characteristics of the ore deposit;
step 2.1, acquiring the ore amount and the inclination angle value of main ore bodies in the ore deposit according to geological exploration data of the ore deposit;
obtaining the ore amount and the dip angle value of a main ore body in the ore deposit with the production scale to be determined by using geological exploration data of the ore deposit;
step 2.2, obtaining the average inclination angle of the ore body by using a weighted average method;
and obtaining the average inclination angle gamma of the ore body by using a weighted average method as follows:
wherein, TnIs the ore amount of the nth main ore body, gammanIs the inclination angle of the nth main ore body;
step 2.3, obtaining the vertical annual descending speed of the mine in the ore body according to the average inclination angle of the ore body;
for ore bodies with the average inclination angle of more than 30 degrees, the vertical annual descending speed V of the mine is 10.6 m/a; for a slowly inclined ore body with the average inclination angle of the ore body smaller than 30 degrees, taking the vertical annual descending speed V of a mine as 7.5 m/a; when the steeply inclined ore body and the slowly inclined ore body exist, the average value of the steeply inclined ore body and the slowly inclined ore body is taken, namely the descending speed V of the mine in vertical years is 9.1 m/a;
step 3, acquiring the height of a mining space of a mine by using the existing geological exploration data of the ore deposit;
step 3.1, acquiring occurrence elevation parameters of ore bodies according to geological exploration data of ore deposits;
3.2, obtaining the mining space height of the mine by using the obtained ore body occurrence elevation parameters;
and performing data analysis on the obtained ore body occurrence elevation parameters to obtain the height H of the mining space of the mine as follows:
H＝h1-h2
wherein H is the height of the mining space of the mine; h is1Locating the vertical highest stoping elevation of a mine; h is2The vertical lowest stoping elevation of the mine is obtained;
step 4, determining the production scale of the obtained mine according to the mine stoping reserve, the mine vertical annual descent speed and the mine stoping space height obtained in the step;
mine stoping reserve Q obtained by the stepshThe vertical annual descending speed V of the mine and the stoping space height H of the mine, and the obtained production scale A of the mine is as follows:
wherein A is the reasonable production scale of the mine, and the unit is ten thousand t/a; qhThe unit is ten thousand t for the mine recovery reserve; h is the height of the mining space of the mine, and the unit is m; v is the vertical annual descent speed in m/a.
Claims (5)
1. A method for determining production scale of a hard rock type uranium mine is characterized by comprising the following steps: the method specifically comprises the following steps:
step 1, acquiring corresponding mine stoping reserves by using the existing geological exploration data of the ore deposit;
step 1.1, collecting geological exploration data of a mineral deposit with a to-be-determined production scale to obtain the geological resource reserve of the mineral deposit;
step 1.2, acquiring the resource reserves of design utilization;
step 1.3, on the basis of considering the loss rate and the dilution rate in the process of mining the ore deposit, carrying out data conversion on the designed and utilized resource reserves to obtain the stope reserves of the mine;
the concrete formula for converting the designed and utilized resource reserves into the mine recovery reserves is as follows:
wherein Q ishThe reserve is the mine recovery reserve; qsUtilizing resource reserves for design; alpha is the loss rate of the mine; beta is the dilution rate of the mine;
step 2, determining the vertical annual descending speed of a mine according to the ore body characteristics of the ore deposit;
step 2.1, acquiring the ore amount and the inclination angle value of main ore bodies in the ore deposit according to geological exploration data of the ore deposit;
step 2.2, obtaining the average inclination angle of the ore body by using a weighted average method;
step 2.3, obtaining the vertical annual descending speed of the mine in the ore body according to the average inclination angle of the ore body;
step 3, acquiring the height of a mining space of a mine by using the existing geological exploration data of the ore deposit;
step 3.1, acquiring occurrence elevation parameters of ore bodies according to geological exploration data of ore deposits;
3.2, obtaining the mining space height of the mine by using the obtained ore body occurrence elevation parameters;
and performing data analysis on the obtained ore body occurrence elevation parameters to obtain the height H of the mining space of the mine as follows:
H＝h1-h2
wherein H is the height of the mining space of the mine; h is1The vertical highest stoping elevation of the mine; h is2The vertical lowest stoping elevation of the mine is obtained;
step 4, determining the production scale of the obtained mine according to the mine stoping reserve, the mine vertical annual descent speed and the mine stoping space height obtained in the step;
mine stoping reserve Q obtained by the stepshThe vertical annual descending speed V of the mine and the stoping space height H of the mine, and the obtained mine production scale A is as follows:
wherein A is the production scale of a mine, and the unit is ten thousand t/a; qhThe unit is ten thousand t for the mine recovery reserve; h is the height of the mining space of the mine, and the unit is m; v is the descending speed of the mine in vertical years and has the unit of m/a.
2. The method for determining the production scale of a hard rock uranium mine according to claim 1, wherein: in the step 2, for ore bodies with the average inclination angle of more than 30 degrees, the vertical annual descending speed V of the mine is 10.6 m/a; for a slowly inclined ore body with the average inclination angle of the ore body smaller than 30 degrees, taking the vertical annual descending speed V of a mine as 7.5 m/a; when the ore body with the steep inclination is provided as well as the ore body with the gentle inclination, the average value of the two ore bodies can be taken, namely the vertical annual descending speed V of the mine is 9.1 m/a.
3. The method for determining the production scale of a hard rock uranium mine according to claim 1, wherein: the specific steps of obtaining the reserve of the geological resources of the ore deposit in the step 1.1 are as follows:
collecting geological exploration data of the mineral deposit with the production scale to be determined, obtaining ascertained and controlled economic basic reserves and the built-in economic resource amount in the main types of the resource reserves, and using the inferred built-in economic resource amount partially; the inferred credibility coefficient of the intrinsic economic resource quantity can be selected to be 0.5-0.8 according to the occurrence characteristics and the exploration degree of the ore deposit.
4. The method for determining the production scale of a hard rock uranium mine according to claim 1, wherein: the specific steps of obtaining the resource reserves for designing and utilizing in the step 1.2 are as follows:
and acquiring the sum of the design utilization resource reserve as the economic basic reserve, the internal economic resource amount of the heuristic control and the inferred internal economic resource amount and the reliability coefficient.
5. The method for determining the production scale of a hard rock uranium mine according to claim 1, wherein: the step 2.2 of obtaining the average dip angle of the ore body comprises the following specific steps:
and obtaining the average inclination angle gamma of the ore body by using a weighted average method as follows:
wherein, TnIs the ore amount of the nth main ore body, gammanIs the inclination angle of the nth main ore body.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102047145A (en) * | 2008-03-27 | 2011-05-04 | 佩尔德利压力国际有限公司 | Prospect stress prediction |
| CN102913244A (en) * | 2012-09-29 | 2013-02-06 | 中国高岭土有限公司 | Underground mining method for kaolin mine |
| CN104239664A (en) * | 2013-06-14 | 2014-12-24 | 中核第四研究设计工程有限公司 | Method for determining production scale of leachable sandstone-type uranium deposit |
| CN106988746A (en) * | 2017-05-04 | 2017-07-28 | 云南华联锌铟股份有限公司 | A kind of outdoor mining methods that become more meticulous of slight slope and thin ore body |
| CN107766999A (en) * | 2016-08-18 | 2018-03-06 | 中核第四研究设计工程有限公司 | A kind of integrated evaluating method of sandrock-type uranium deposit utilization |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102047145A (en) * | 2008-03-27 | 2011-05-04 | 佩尔德利压力国际有限公司 | Prospect stress prediction |
| CN102913244A (en) * | 2012-09-29 | 2013-02-06 | 中国高岭土有限公司 | Underground mining method for kaolin mine |
| CN104239664A (en) * | 2013-06-14 | 2014-12-24 | 中核第四研究设计工程有限公司 | Method for determining production scale of leachable sandstone-type uranium deposit |
| CN107766999A (en) * | 2016-08-18 | 2018-03-06 | 中核第四研究设计工程有限公司 | A kind of integrated evaluating method of sandrock-type uranium deposit utilization |
| CN106988746A (en) * | 2017-05-04 | 2017-07-28 | 云南华联锌铟股份有限公司 | A kind of outdoor mining methods that become more meticulous of slight slope and thin ore body |
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