CN101776564A - Method for determining degree of dissociation of mineral monomer of iron ore dressing product - Google Patents
Method for determining degree of dissociation of mineral monomer of iron ore dressing product Download PDFInfo
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- CN101776564A CN101776564A CN200910010060A CN200910010060A CN101776564A CN 101776564 A CN101776564 A CN 101776564A CN 200910010060 A CN200910010060 A CN 200910010060A CN 200910010060 A CN200910010060 A CN 200910010060A CN 101776564 A CN101776564 A CN 101776564A
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Abstract
The invention belongs to the technical field of ore dressing and in particular provides a method for determining degree of dissociation of a mineral monomer of an iron ore dressing product. The method is characterized by comprising the steps of detecting the degree of dissociation of the ore dressing product and computing the degree of dissociation of the iron ore dressing product according to the detection result. The specific steps are as follows: screening and elutriating the ore dressing product according to the level of granularity, recording the weight of each grain level and testing the total iron grade of each grain level; observing the level of each granularity under a microscope, dividing the volume of the iron mineral at each grain level into 9 segments according to the ratio of the iron mineral to the grain area, counting the number of the mineral grains in each area segment at each grain level and obtaining the original record of determination of the degree of dissociation; and inputting the initial data of the weight of each granularity, the total iron grade and determination of the degree of dissociation into an initial data input interface of software for computing the degree of dissociation of the iron ore dressing product and computing the weight of various minerals at each grain level of each ore dressing product under various dissociated states. By the method, the data can be processed and the data and the diagrams related to dissociation of the iron minerals needed for ore dressing and in process mineralogy be output quickly, effectively and more accurately.
Description
Technical field
The invention belongs to the technique of preparing field, particularly a kind of method for determining degree of dissociation of mineral monomer of iron ore dressing product.
Background technology
In process mineralogy and ore dressing production, research work, need carry out the analysis of mineral monomer dissociated state to ore ore milling product and dressing product, to find out the washability of dissociating of ore, find out the iron mineral monomer and the intergrowth distribution of dressing product, for follow-up work provides foundation.
Currently used determining degree of dissociation step is:
1) with dressing product, sieve and elutriation by the granularity rank, each grade product is chemically examined,
2) each granularity rank is observed at microscopically, accounting for the score of particle area by iron mineral is: monomer iron mineral, 7/8,3/4,1/2,1/4,1/8,1/16,1/32 and 9 sections of monomer gangue mineral, add up the mineral grain number of each the area section in each grade, obtain the determining degree of dissociation raw readings
3) method of calculating each grade mineral sand grains average external volume V is: V=4/3 π (D/2).Wherein D is this grade average particulate diameter,
4) method of calculating each grade monomer iron volume Vdt is: Vdt=Ndt*V, and in the formula, when Ndt is determining degree of dissociation, the monomer iron mineral granule number in this granularity.
5) method of calculating the iron mineral volume Vfe in each grade is: Vfe=∑ Ni*Vi*V (i=1-9, corresponding to full iron, iron account for 7/8, iron accounts for 3/4, iron accounts for 1/2, iron accounts for 1/4, iron accounts for 1/8, iron accounts for 1/16, iron accounts for 1/32, the monomer gangue), Ni is the granule number of the shared volume ratio of this iron mineral in the formula.
6) each grade iron mineral degree of dissociation Ji=Dfe*Vfe*100%, Dfe is an iron mineral proportion in the formula,
7) sample ore iron mineral degree of dissociation J=∑ Ji*Ri, Ri is the productive rate of corresponding grade in the formula.
8) hand filling, draw various charts.
The calculating of dissociating of one cover dressing product will spend 4 hours even more time.When many covers dressing product is carried out determining degree of dissociation, then need the workload of a couple of days, to beneficiation test research, especially ore dressing production is difficult to provide in time related data.
Summary of the invention
The purpose of this invention is to provide a kind of method for determining degree of dissociation of mineral monomer of iron ore dressing product of fast effectively, more accurately a large amount of determining degree of dissociation data being handled.
The objective of the invention is to realize by following technical proposals.
Method for determining degree of dissociation of mineral monomer of iron ore dressing product of the present invention is characterized in that comprising that ore beneficiation product degree of dissociation detects and calculates iron mineral dressing product degree of dissociation according to testing result, and concrete steps are as follows:
1) to dressing product, sieve and elutriation by the granularity rank, write down each grade weight, and chemically examine the full iron grade of each grade,
2) each granularity rank is observed at microscopically, account for particle area ratio by iron mineral, iron mineral volume Vfe in each grade is divided into: monomer iron mineral, 7/8,3/4,1/2,1/4,1/8,1/16,1/32 and 9 sections of monomer gangue mineral, add up the mineral grain number of each the area section in each grade, obtain the determining degree of dissociation raw readings
3) with the raw data inputting interface of above each grade weight, full iron grade and determining degree of dissociation raw data input iron mineral dressing product degree of dissociation software for calculation,
4) utilize the King Model Calculation to go out the theoretical degree of dissociation value of each grade:
Lm(D)＝1-1/um∫{1-N(L/d}}{1-Fm(L)}dt
In the formula, Lm (D): purpose mineral degree of dissociation when grade is D,
Um: the purpose mineral on average scatter particle diameter,
Du: this grade the largest particles diameter,
N (L/d}:D grade purpose mineral cumulative amount distribution function (1-exp (L/P))
Fm (L): Blang's number of writing, Fm (L)=1-exp (L/um),
5) with the simplicial method of operational research actual measurement degree of dissociation Ji is revised, its mathematical model is as follows: objective function Min Z=∑ (Ci (Xi1+Xi2))
X11-X12＝Lm1-J1......(1)
X21-X22＝Lm2-J2......(2)
Xi1-Xi2＝Lmi-Ji
Xi1≥0
Xi2≥0，
Wherein, Xi1 is an i grade degree of dissociation added value, and Xi2 is an i grade degree of dissociation minimizing value, order
Ci in the offer of tender number gets the mensuration granule number of i grade,
Grade i revises degree of dissociation J (i)=Ji+X1-X2,
The total degree of dissociation J=∑ of sample ore J (i) * Ri,
In the formula, Ri is this grade productive rate, i=1...9, and the value of Lm when Lm1 is D=1 (D), D=1...9,
6) data that calculate more than the foundation show with the form of chart, and dressing product degree of dissociation related data is docked with MS-WORD, realize degree of dissociation data computation and the digitizing of reporting and submitting.
Determining degree of dissociation of mineral monomer of iron ore dressing product computing method of the present invention fast effectively, more accurately a large amount of determining degree of dissociation data are handled, output ore dressing and the required iron mineral of process mineralogy dissociate related data and chart.When saving human and material resources, also in time provide the relevant rudimentary data for ore dressing production and research work.
Embodiment
The following describes the specific embodiment of the present invention.
Method for determining degree of dissociation of mineral monomer of iron ore dressing product of the present invention is characterized in that comprising that ore beneficiation product degree of dissociation detects and calculates poly-iron mineral dressing product degree of dissociation of step according to testing result, and concrete steps are as follows:
1) to dressing product, sieve and elutriation by the granularity rank, write down each grade weight, and chemically examine the full iron grade of each grade,
2) each granularity rank is observed at microscopically, account for particle area ratio by iron mineral, iron mineral volume Vfe in each grade is divided into: monomer iron mineral, 7/8,3/4,1/2,1/4,1/8,1/16,1/32 and 9 sections of monomer gangue mineral, add up the mineral grain number of each the area section in each grade, obtain the determining degree of dissociation raw readings
3) with the raw data inputting interface of above each grade weight, full iron grade and determining degree of dissociation raw data input iron mineral dressing product degree of dissociation software for calculation,
4) utilize the King Model Calculation to go out the theoretical degree of dissociation value of each grade:
Lm(D)＝1-1/um∫{1-N(L/d}}{1-Fm(L)}dt
In the formula, Lm (D): purpose mineral degree of dissociation when grade is D,
Um: the purpose mineral on average scatter particle diameter,
Du: this grade the largest particles diameter,
N (L/d}:D grade purpose mineral cumulative amount distribution function (1-exp (L/P))
Fm (L): Blang's number of writing, Fm (L)=1-exp (L/um),
5) with the simplicial method of operational research actual measurement degree of dissociation Ji is revised, its mathematical model as
Down: objective function Min Z=∑ (Ci (Xi1+Xi2))
X11-X12＝Lm1-J1......(1)
X21-X22＝Lm2-J2......(2)
Xi1-Xi?2＝Lmi-Ji
Xi1≥0
Xi2≥0，
Wherein, Xi1 is an i grade degree of dissociation added value, and Xi2 is an i grade degree of dissociation minimizing value, and the Ci in the objective function gets the mensuration granule number of i grade,
Grade i revises degree of dissociation J (i)=Ji+X1-X2,
The total degree of dissociation J=∑ of sample ore J (i) * Ri,
In the formula, Ri is this grade productive rate, i=1...9, and the value of Lm when Lm1 is D=1 (D), D=1...9,
6) data that calculate more than the foundation show with the form of chart, and dressing product degree of dissociation related data is docked with MS-WORD, realize degree of dissociation data computation and the digitizing of reporting and submitting.
Claims (1)
1. a method for determining degree of dissociation of mineral monomer of iron ore dressing product is characterized in that comprising that ore beneficiation product degree of dissociation detects and calculates iron mineral dressing product degree of dissociation according to testing result, and concrete steps are as follows:
1) to dressing product, sieve and elutriation by the granularity rank, write down each grade weight, and chemically examine the full iron grade of each grade,
2) each granularity rank is observed at microscopically, account for particle area ratio by iron mineral, iron mineral volume Vfe in each grade is divided into: monomer iron mineral, 7/8,3/4,1/2,1/4,1/8,1/16,1/32 and 9 sections of monomer gangue mineral, add up the mineral grain number of each the area section in each grade, obtain the determining degree of dissociation raw readings
3) with the raw data inputting interface of above each grade weight, full iron grade and determining degree of dissociation raw data input iron mineral dressing product degree of dissociation software for calculation,
4) utilize the King Model Calculation to go out the theoretical degree of dissociation value of each grade:
Lm(D)＝1-1/um∫{1-N(L/d}}{1-Fm(L)}dt
In the formula, Lm (D): purpose mineral degree of dissociation when grade is D,
Um: the purpose mineral on average scatter particle diameter,
Du: this grade the largest particles diameter,
N (L/d}:D grade purpose mineral cumulative amount distribution function (1-exp (L/P))
Fm (L): Blang's number of writing, Fm (L)=1-exp (L/um),
5) with the simplicial method of operational research actual measurement degree of dissociation Ji is revised, its mathematical model is as follows:
Objective function Min Z=∑ (Ci (Xi1+Xi2))
X11-X12＝Lm1-J1 ......(1)
X21-X22＝Lm2-J2 ......(2)
.....................
Xi1-Xi2＝Lmi-Ji
Xi1≥0
Xi2≥0，
Wherein, Xi1 is an i grade degree of dissociation added value, and Xi2 is an i grade degree of dissociation minimizing value, and the Ci in the objective function gets the mensuration granule number of i grade,
Grade i revises degree of dissociation J (i)=Ji+X1-X2,
The total degree of dissociation J=∑ of sample ore J (i) * Ri,
In the formula, Ri is this grade productive rate, i=1...9, and the value of Lm when Lm1 is D=1 (D), D=1...9,
6) data that calculate more than the foundation show with the form of chart, and dressing product degree of dissociation related data is docked with MS-WORD, realize degree of dissociation data computation and the digitizing of reporting and submitting.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104931396A (en) * | 2015-06-04 | 2015-09-23 | 东北大学 | Method for determining fine particle mineral material particle size composition and metal distribution |
| CN107227405A (en) * | 2017-05-04 | 2017-10-03 | 江苏省冶金设计院有限公司 | The method for correcting degree of dissociation |
| CN109046760A (en) * | 2018-09-26 | 2018-12-21 | 攀钢集团攀枝花钢铁研究院有限公司 | The recoverying and utilizing method of vanadium titano-magnetite tailing |
| CN110823985A (en) * | 2019-11-19 | 2020-02-21 | 长春黄金研究院有限公司 | Method for measuring dissociation degree of copper mineral monomer |
| CN111582161A (en) * | 2020-05-07 | 2020-08-25 | 中国矿业大学 | Mineral dissociation system based on fracture characteristic criterion |
| CN111582164A (en) * | 2020-05-07 | 2020-08-25 | 中国矿业大学 | Mineral dissociation method based on fracture characteristic criterion |
| CN111582162A (en) * | 2020-05-07 | 2020-08-25 | 中国矿业大学 | Mineral dissociation degree obtaining method based on particle fracture characteristics |
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2009
- 2009-01-08 CN CN200910010060A patent/CN101776564A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104931396A (en) * | 2015-06-04 | 2015-09-23 | 东北大学 | Method for determining fine particle mineral material particle size composition and metal distribution |
| CN104931396B (en) * | 2015-06-04 | 2018-04-06 | 东北大学 | A kind of method for determining the granularmetric composition of micro-size fraction mineral materials and Metal Distribution |
| CN107227405A (en) * | 2017-05-04 | 2017-10-03 | 江苏省冶金设计院有限公司 | The method for correcting degree of dissociation |
| CN109046760A (en) * | 2018-09-26 | 2018-12-21 | 攀钢集团攀枝花钢铁研究院有限公司 | The recoverying and utilizing method of vanadium titano-magnetite tailing |
| CN110823985A (en) * | 2019-11-19 | 2020-02-21 | 长春黄金研究院有限公司 | Method for measuring dissociation degree of copper mineral monomer |
| CN110823985B (en) * | 2019-11-19 | 2022-06-28 | 长春黄金研究院有限公司 | Method for measuring dissociation degree of copper mineral monomer |
| CN111582161A (en) * | 2020-05-07 | 2020-08-25 | 中国矿业大学 | Mineral dissociation system based on fracture characteristic criterion |
| CN111582164A (en) * | 2020-05-07 | 2020-08-25 | 中国矿业大学 | Mineral dissociation method based on fracture characteristic criterion |
| CN111582162A (en) * | 2020-05-07 | 2020-08-25 | 中国矿业大学 | Mineral dissociation degree obtaining method based on particle fracture characteristics |
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Open date: 20100714 |