CN104941781A - Grading method for polymetallic ores - Google Patents
Grading method for polymetallic ores Download PDFInfo
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- CN104941781A CN104941781A CN201510371069.XA CN201510371069A CN104941781A CN 104941781 A CN104941781 A CN 104941781A CN 201510371069 A CN201510371069 A CN 201510371069A CN 104941781 A CN104941781 A CN 104941781A
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- sorting
- concentrate
- tailings
- ore
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
- B02C23/14—Separating or sorting of material, associated with crushing or disintegrating with more than one separator
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C21/00—Disintegrating plant with or without drying of the material
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- Food Science & Technology (AREA)
- Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
Abstract
The invention discloses a grading method for polymetallic ores, and relates to the technical field of ore dressing. The grading method comprises the following steps: dividing raw ores into ores with three size fractions; sorting the ores with size fraction of (-)4mm to (+)2mm by primary gravity dressing equipment to obtain primary tailings which are discarded as tailings obtained by first-stage sorting; grinding primary concentrates, sorting the grinded primary concentrates by secondary gravity dressing equipment to obtain secondary tailings, combining the secondary tailings with primary middlings to obtain a mixture, grinding the mixture, and sorting the grinded mixture by flotation and tertiary gravity dressing equipment to obtain tertiary dressings which are discarded as tailings obtained by second-stage sorting; and sorting the ores with size fraction of (-)2mm by gravity dressing equipment to obtain tailings which are discarded as tailings obtained by third-stage sorting. Compared with the prior art, by virtue of discarding tailings in stages, gangue amount in a follow-up grading process is reduced, so that the tailing-discarding grade is effectively controlled, the waste discarding rate is increased by 5%-10%, and energy consumption and reagent consumption for grading are reduced by about 5%.
Description
Technical field
The present invention relates to technical field of beneficiation, tail dressing method is lost in especially a kind of segmentation of polymetallic ore.
Background technology
Sorting in process at mineral, in order to make valuable mineral obtain enrichment, needing to remove non-target minreal and gangue, and then form mine tailing.Ore dressing plant is in order to obtain the concentrate meeting smelting requirements, and usually arrange longer Beneficiation flowsheet and carry out continuous enrichment to ore, particularly sort for the ore that head grade is lower, the flow process sorted is longer, and flowage structure is more complicated.In Beneficiation flowsheet, ore needs through the grinding of milling medium, the effect of floating agent or the process of some other depleting substance and electric energy, flow process to sort number of times more, consume larger, and gangue sorts in process in circulation, not only impact is caused on the enrichment of target minreal, and increase material consumption and energy consumption.
Dachang, Guangxi tin-polymetallic sulphide ore is the ore of a kind of many mineral of complexity, the association of many metals or symbiosis, character is complicated, technique of preparing personnel are studied the character of mineral and ore grinding, beneficiation method, raw ore is divided into the ore of+4mm grade ,-4mm ~+2mm grade ,-2mm grade, the ore of size fractionated is sorted, along with Beneficiation flowsheet prolongation, sort the increase of number of times, gangue circulation on stream, make follow-up sorting result poor, and energy consumption and medicine consume high, the corresponding increase of cost, the overall efficiency affecting enterprise promotes.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of dressing method of polymetallic ore, and large with gangue internal circulating load in the Beneficiation flowsheet solving polymetallic ore, energy consumption and medicine consume high problem.
In order to solve the problem, the technical solution used in the present invention is: the dressing method of this polymetallic ore, comprise and sieve classification is carried out to raw ore, be divided into the ore of+4mm grade ,-4mm ~+2mm grade ,-2mm grade, + 4mm grade the ore obtained repeats to grind, sieve, and iterative cycles is until ore grain size is all-4mm; Further comprising the steps of:
A ,-4mm ~+2mm grade ore carries out sorting through one-level gravitational separation equipment, obtains one-level concentrate, one-level chats and one-level mine tailing according to grade sorting, and described one-level mine tailing loses tail as the mine tailing of first paragraph sorting;
B, described one-level concentrate to be ground, sorting is carried out through secondary gravitational separation equipment, obtain second concentrate and secondary mine tailing, described second concentrate is as concentrate product, grind again after described secondary mine tailing and described one-level chats merge, carry out sorting through flotation and three grades of gravitational separation equipments, obtain three grades of concentrate and three grades of mine tailings, described three grades of concentrate are as concentrate product, and described three grades of mine tailings lose tail as the mine tailing of second segment sorting;
C ,-2mm grade ore carries out sorting through gravitational separation equipment, obtains concentrate and tailings, and this concentrate is as concentrate product, and this mine tailing loses tail as the mine tailing of the 3rd section of sorting.
Owing to have employed technique scheme, the present invention compared with prior art has following beneficial effect:
Raw ore is sieved into+4mm grade ,-4mm ~+2mm grade ,-2mm grade ore three grades by the present invention, carry out segmentation to different grade ores to sort, tail is lost after taking each section to sort, tail is lost by segmentation, decrease the follow-up gangue amount sorted in process, effectively can control to lose tail grade, improve and waste rate 5% ~ 10%, reduce and sort energy consumption and medicine consumption about 5%.
Accompanying drawing explanation
Fig. 1 is the process chart of the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with specific embodiment, the invention will be further described:
A kind of dressing method of polymetallic ore, its technological process as shown in Figure 1, comprises and carries out sieve classification to raw ore, is divided into the ore of+4mm grade ,-4mm ~+2mm grade ,-2mm grade, + 4mm grade the ore obtained repeats to grind, sieve, and iterative cycles is until ore grain size is all-4mm; Further comprising the steps of:
A ,-4mm ~+2mm grade ore carries out sorting through one-level gravitational separation equipment, and obtain one-level concentrate, one-level chats and one-level mine tailing according to grade sorting, one-level mine tailing loses tail as the mine tailing of first paragraph sorting;
B, one-level concentrate to be ground, sorting is carried out through secondary gravitational separation equipment, obtain second concentrate and secondary mine tailing, second concentrate is as concentrate product, grind again after secondary mine tailing and one-level chats merge, carry out sorting through flotation and three grades of gravitational separation equipments, obtain three grades of concentrate and three grades of mine tailings, three grades of concentrate are as concentrate product, and three grades of mine tailings lose tail as the mine tailing of second segment sorting;
C ,-2mm grade ore carries out sorting through gravitational separation equipment, obtains concentrate and tailings, and this concentrate is as concentrate product, and this mine tailing loses tail as the mine tailing of the 3rd section of sorting.
Che He ore dressing plant adopts the dressing method of this polymetallic ore to sort to tin-polymetallic sulphide ore, lose tail by segmentation, decrease the follow-up gangue amount sorted in process, can effectively control to lose tail grade, improve and waste rate 5% ~ 10%, reduce and sort energy consumption and medicine consumption about 5%.The present invention is also suitable for sorting of other nonferrous metals ore, such as bauxite, manganese ore etc.
Claims (1)
1. a dressing method for polymetallic ore, comprises and carries out sieve classification to raw ore, and be divided into the ore of+4mm grade ,-4mm ~+2mm grade ,-2mm grade ,+the 4mm obtained grade ore repeats to grind, sieve, and iterative cycles is until ore grain size is all-4mm; Characterized by further comprising following steps:
A ,-4mm ~+2mm grade ore carries out sorting through one-level gravitational separation equipment, obtains one-level concentrate, one-level chats and one-level mine tailing according to grade sorting, and described one-level mine tailing loses tail as the mine tailing of first paragraph sorting;
B, described one-level concentrate to be ground, sorting is carried out through secondary gravitational separation equipment, obtain second concentrate and secondary mine tailing, described second concentrate is as concentrate product, grind again after described secondary mine tailing and described one-level chats merge, carry out sorting through flotation and three grades of gravitational separation equipments, obtain three grades of concentrate and three grades of mine tailings, described three grades of concentrate are as concentrate product, and described three grades of mine tailings lose tail as the mine tailing of second segment sorting;
C ,-2mm grade ore carries out sorting through gravitational separation equipment, obtains concentrate and tailings, and this concentrate is as concentrate product, and this mine tailing loses tail as the mine tailing of the 3rd section of sorting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510371069.XA CN104941781B (en) | 2015-06-30 | 2015-06-30 | The dressing method of polymetallic ore |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510371069.XA CN104941781B (en) | 2015-06-30 | 2015-06-30 | The dressing method of polymetallic ore |
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| Publication Number | Publication Date |
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| CN104941781A true CN104941781A (en) | 2015-09-30 |
| CN104941781B CN104941781B (en) | 2017-10-24 |
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| CN201510371069.XA Active CN104941781B (en) | 2015-06-30 | 2015-06-30 | The dressing method of polymetallic ore |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111905919A (en) * | 2020-07-05 | 2020-11-10 | 河南省岩石矿物测试中心 | Mineral processing technology for recovering titanium mineral from bauxite |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4213942A (en) * | 1978-01-23 | 1980-07-22 | Groupe Minier Sullivan Ltee/Sullivan Mining Group Ltd. | Process for the concentration of mineral by flotation process |
| US6666903B1 (en) * | 1996-08-14 | 2003-12-23 | Discovery Resources, Inc. | Method for improved recovery of metals |
| CN1579639A (en) * | 2004-05-21 | 2005-02-16 | 谷正康 | Screen mesh-circular groove concentrating ore dressing method and equipment |
| CN1943869A (en) * | 2006-10-19 | 2007-04-11 | 华锡集团车河选矿厂 | Step branched ore milling and milling and dressing circular new technology |
| CN101912812A (en) * | 2010-08-04 | 2010-12-15 | 云南迪庆矿业开发有限责任公司 | Comprehensive treatment method for high-mud content high-combination rate mixed copper ore |
| CN102500465A (en) * | 2011-11-22 | 2012-06-20 | 广州有色金属研究院 | Benefication method for bastnaesite |
| CN103100481A (en) * | 2013-01-21 | 2013-05-15 | 湖南华洋铜业股份有限公司 | Separation method for natural copper ore with high mud content |
-
2015
- 2015-06-30 CN CN201510371069.XA patent/CN104941781B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4213942A (en) * | 1978-01-23 | 1980-07-22 | Groupe Minier Sullivan Ltee/Sullivan Mining Group Ltd. | Process for the concentration of mineral by flotation process |
| US6666903B1 (en) * | 1996-08-14 | 2003-12-23 | Discovery Resources, Inc. | Method for improved recovery of metals |
| CN1579639A (en) * | 2004-05-21 | 2005-02-16 | 谷正康 | Screen mesh-circular groove concentrating ore dressing method and equipment |
| CN1943869A (en) * | 2006-10-19 | 2007-04-11 | 华锡集团车河选矿厂 | Step branched ore milling and milling and dressing circular new technology |
| CN101912812A (en) * | 2010-08-04 | 2010-12-15 | 云南迪庆矿业开发有限责任公司 | Comprehensive treatment method for high-mud content high-combination rate mixed copper ore |
| CN102500465A (en) * | 2011-11-22 | 2012-06-20 | 广州有色金属研究院 | Benefication method for bastnaesite |
| CN103100481A (en) * | 2013-01-21 | 2013-05-15 | 湖南华洋铜业股份有限公司 | Separation method for natural copper ore with high mud content |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111905919A (en) * | 2020-07-05 | 2020-11-10 | 河南省岩石矿物测试中心 | Mineral processing technology for recovering titanium mineral from bauxite |
| CN111905919B (en) * | 2020-07-05 | 2021-09-17 | 河南省岩石矿物测试中心 | Mineral processing technology for recovering titanium mineral from bauxite |
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| CN104941781B (en) | 2017-10-24 |
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Effective date of registration: 20200901 Address after: Office building of Tongkeng Mine, Dachang Town, Nandan county, Hechi City, Guangxi Zhuang Autonomous Region Patentee after: Tongkeng mining branch of Guangxi Huaxi Mining Co., Ltd Address before: 547204 car town, Nandan County, Hechi, the Guangxi Zhuang Autonomous Region Patentee before: CHEHE DRESSING PLANT OF CHINA-TIN GROUP Co.,Ltd. |