CN-117443558-B - Ore sorting method and system

Abstract

The invention provides an ore sorting method and system. The method comprises a raw ore treatment step of treating raw ore, screening ore with a first particle size range, ore with a second particle size range and ore with a third particle size range, outputting the ore with the first particle size range, a roughing step of treating the ore with the third particle size range to obtain ore smaller than the third particle size range, a concentration step of treating the ore smaller than the third particle size range and the ore with the second particle size range, and outputting the treated ore. The invention can improve the grade of the product, ensure higher grade concentrate, provide better quality raw materials for concentrating mills, effectively ensure separation effect, realize recycling of low-grade raw ores, improve the utilization rate of the raw ores, improve the operation yield and the operation efficiency of ore separation, increase the available resource amount for enterprises, and bring great economic benefit and social benefit.

Inventors

• ZHANG CHENGCHEN
• LI CHAOPENG
• Yang shuangfu
• SHI YULIN

Assignees

• 辽宁隆基光电科技有限公司

Dates

Publication Date

20260512

Application Date

20231128

Claims (8)

1. 1. A method of ore sorting comprising the steps of: A raw ore treatment step of treating raw ore, and screening out ore having a first particle size range, ore having a second particle size range, and ore having a third particle size range, and outputting ore having the first particle size range; a roughing step, namely processing the ore with the third grain size range to obtain ore with the grain size smaller than the third grain size range; a selection step of processing the ore smaller than the third particle size range and the ore having the second particle size range, and outputting the processed ore; the beneficiation step further comprises: A screening molecular step of screening the ore smaller than the third particle size range and the ore having the second particle size range, and screening the ore having the first particle size range, the ore having the fourth particle size range and the ore having the fifth particle size range; A second output sub-step of outputting the ore having the first particle size range as a first product; a fine ore washing sub-step of washing the ore having the fourth grain size range and the ore having the fifth grain size range, respectively; A selecting and sorting sub-step of respectively sorting the washed ores with the fourth grain size range and the ores with the fifth grain size range, outputting the sorted ores meeting the preset grade and having the fourth grain size range as second products, and outputting the sorted ores meeting the preset grade and having the fifth grain size range as third products; The ore having a first particle size range is ore less than 10 mm; The ore with the second particle size range is 10 mm-60 mm ore; the ore with the third grain size range is 60-180 mm ore; The ore with the fourth grain size range is 10 mm-30 mm ore; the ore with the fifth grain size range is 30-60 mm ore.
2. 2. The ore sorting method of claim 1, wherein the raw ore processing step further comprises: A raw ore first screening molecular step of screening raw ore to obtain ore with a particle size larger than a third particle size range; a raw ore crushing sub-step of crushing the ore with the particle size larger than a third particle size range; A raw ore second screening molecular step of screening the ore remaining after screening the ore larger than the third grain size range and the crushed ore, and screening the ore with the first grain size range, the ore with the second grain size range and the ore with the third grain size range; And a first output sub-step of outputting the ore with the first particle size range as a first product.
3. 3. The ore sorting method of claim 1, wherein the roughing step further comprises: A rough ore washing sub-step, namely washing the ore with the third particle size range; a rough separation sub-step of separating the washed ore to separate the ore meeting the preset grade; And a roughing crushing sub-step, wherein the separated ore is crushed to obtain the ore with the particle size smaller than the third particle size range.
4. 4. The ore sorting method according to claim 3, characterized in that, In the roughing sorting sub-step, an X-ray fluorescence sorter is adopted to sort ore after ore washing, and/or, In the selection sorting substep, an X-ray transmission imaging sorter is used for sorting the washed ore with the fourth particle size range or the ore with the fifth particle size range.
5. 5. An ore sorting system for sorting using the ore sorting method of any one of claims 1 to 4, comprising: A first processing system (100) for processing raw ore and screening out ore having a first particle size range, ore having a second particle size range, and ore having a third particle size range, and outputting ore having the first particle size range; a second processing system (200) for processing the ore having the third particle size range to obtain ore having a size less than the third particle size range; a third processing system (300) for processing the ore smaller than the third particle size range and the ore having the second particle size range and outputting the processed ore.
6. 6. The ore sorting system of claim 5, wherein the first processing system (100) includes: a first screening device (110) for receiving raw ore and screening the raw ore to screen out ore greater than a third size range; a first crushing device (120) for crushing the ore greater than the third particle size range; And a second screening device (130) for screening the ore remaining after the ore having been screened out of the first screening device more than the third particle size range from the ore crushed in the first crushing device to screen out the ore having the first particle size range, the ore having the second particle size range, and the ore having the third particle size range, and outputting the ore having the first particle size range.
7. 7. The ore sorting system of claim 6, wherein the second processing system (200) includes: A first ore washing device (210) for washing the ore having the third particle size range; A first sorting device (220) for sorting the washed ore to sort out ore satisfying a preset grade; and the second crushing device (230) is used for crushing the selected ores meeting the preset grade so as to obtain ores smaller than the third particle size range.
8. 8. The ore sorting system of claim 7, wherein the third processing system (300) includes: A third screening device (310) for screening the ore smaller than the third grain size range obtained by the second crushing device and the ore having the second grain size range screened by the second screening device to screen the ore having the first grain size range, the ore having the fourth grain size range and the ore having the fifth grain size range, and outputting the ore having the first grain size range; a second ore washing device (320) for washing the ore having the fourth particle size range; The second separation device (330) is used for separating the ore with the fourth grain size range after ore washing and outputting the separated ore meeting the preset grade; A third ore washing device (340) for washing the ore having the fifth particle size range; and the third sorting device (350) is used for sorting the ore with the fifth grain size range after ore washing and outputting the sorted ore meeting the preset grade.

Description

Ore sorting method and system Technical Field The invention relates to the technical field of ore dressing, in particular to an ore dressing method and system. Background Mineral resources have been mined for decades or hundreds of years, during which time the mined grade of ore is not available and the strip of surface mining is stockpiled in large quantities. However, there are still useful minerals in this portion of ore which, if utilized, can increase the amount of resources available to the enterprise and which do not require blasting or down-hole transport at a cost far lower than mining costs. But the prior art does not effectively sort the portion of ore. Disclosure of Invention In view of the above, the invention provides an ore sorting method, which aims to solve the problem that the prior art cannot effectively sort low-grade ores. The invention also provides an ore sorting system. In one aspect, the invention features an ore sorting method that includes a raw ore processing step of processing raw ore and screening and outputting ore having a first particle size range, ore having a second particle size range, and ore having a third particle size range, a roughing step of processing ore having a third particle size range to obtain ore smaller than the third particle size range, and a beneficiating step of processing ore smaller than the third particle size range and ore having the second particle size range and outputting the processed ore. Further, in the ore sorting method, the raw ore processing step further comprises a raw ore first screening step of screening raw ores to obtain ores with a particle size larger than a third particle size range, a raw ore crushing sub-step of crushing the ores with the particle size larger than the third particle size range, a raw ore second screening step of screening the ores left after the ores with the particle size larger than the third particle size range are screened from the crushed ores, the ores with the first particle size range, the ores with the second particle size range and the ores with the third particle size range are screened, and a first outputting sub-step of outputting the ores with the first particle size range as first products. Further, in the ore separation method, the roughing step further comprises a roughing ore washing sub-step of washing ores with the third grain size range, a roughing separation sub-step of separating the washed ores to separate the ores meeting the preset grade, and a roughing crushing sub-step of crushing the separated ores to obtain ores smaller than the third grain size range. Further, in the ore sorting method, the selecting step further comprises a selecting molecular step of screening the ore smaller than the third grain size range and the ore having the second grain size range, screening the ore having the first grain size range, the ore having the fourth grain size range and the ore having the fifth grain size range, a second outputting sub-step of outputting the ore having the first grain size range as a first product, a selecting ore washing sub-step of washing the ore having the fourth grain size range and the ore having the fifth grain size range, respectively, and a selecting sorting sub-step of sorting the washed ore having the fourth grain size range and the ore having the fifth grain size range, respectively, and outputting the selected ore satisfying the preset grade and having the fourth grain size range as a second product, and outputting the selected ore satisfying the preset grade and having the fifth grain size range as a third product. Further, in the ore sorting method, in the rough sorting sub-step, the washed ore is sorted by adopting an X-ray fluorescence sorter, and/or in the fine sorting sub-step, the washed ore with the fourth grain size range or the ore with the fifth grain size range is sorted by adopting an X-ray transmission imaging sorter. Further, in the ore separation method, the ore with the first particle size range is less than 10mm, the ore with the second particle size range is 10 mm-60 mm, the ore with the third particle size range is 60 mm-180 mm, the ore with the fourth particle size range is 10 mm-30 mm, and the ore with the fifth particle size range is 30 mm-60 mm. According to the invention, raw ores are treated, ores with a first particle size range, ores with a second particle size range and ores with a third particle size range are screened, then ores with the third particle size range are treated to obtain ores smaller than the third particle size range, then ores smaller than the third particle size range and ores with the second particle size range are treated, the treated ores with the first particle size range are output, the treated ores in the second particle size range are treated in a sectionalized manner and are output respectively, the grade of products is improved, higher-grade concentrates are ensured, higher-quality raw materials are provided for