CN100429001C - Column type short flow reverse floatation process and apparatus for hematite - Google Patents
Column type short flow reverse floatation process and apparatus for hematite Download PDFInfo
- Publication number
- CN100429001C CN100429001C CNB2006100977515A CN200610097751A CN100429001C CN 100429001 C CN100429001 C CN 100429001C CN B2006100977515 A CNB2006100977515 A CN B2006100977515A CN 200610097751 A CN200610097751 A CN 200610097751A CN 100429001 C CN100429001 C CN 100429001C
- Authority
- CN
- China
- Prior art keywords
- flotation column
- foam
- flotation
- concentrate
- post
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
Abstract
The invention relates to a bloodstone post-type shortened reverse-flotation selecting method and relative device, wherein it has two systems arranged from high to low, while each one is formed by cyclone-static micro foam selecting post, slurry mixing cylinder, buffer pool, and concentrate magnetic selector; it adds material mine and flotation drug into slurry mixing cylinder to be mixed; adds the material into rough flotation post; the bottom of rough flotation post discharges the qualified bloodstone finished ore product, and the upper foam at the rough floatation post via foam absorber is absorbed into the scavenger floatation post to be scavenged; and the bottom of said scavenger floatation post discharges ore into buffer pool, while its upper foam is the final debris product; the middle ore of buffer pool, via middle ore pump is transmitted to the concentrate magnetic selector to be selected, and the finished ore will be fed back to the mixing cylinder, to be mixed with material and selected again. The invention has simple process and low cost.
Description
Technical field
The present invention relates to the fine-particle minerals separating technology, especially the column type short flow reverse floatation process that is applicable to the bloodstone sorting that becomes based on the coarse scan selected works.
Background technology
Iron ore concentrate is the base stock of steel and iron industry, and therefore, the variation of iron and steel total demand will directly influence iron ore concentrate market.Along with the high speed development of Chinese national economy, the iron and steel demand constantly increases, and iron fine fodder shortage problem is day apparent giving prominence to.According to initial estimate, domestic steel consumption amount was about 3.2 hundred million tons in 2010, so each numerous and confused dilatation of big steel mill is increased production and met the need of market.
The iron ore mine enterprise of China is to process based on a minute magnetite (blue or green ore deposit) for many years, and along with resource of magnetite is progressively exhausted, the sorting processing of middle low grade hematite ore causes attention in the industry.Selecting factory and neat mountain subsidiary factory (platform assembles troops) with the neat mountain of Anshan iron and steel plant group at present is that the bloodstone of representative selects factory to obtain considerable progress at the sorting manufacture field of bloodstone in recent years, adopt anion reverse floatation technology, choosing back concentrate grade surpasses 67%, for the model is set up in the development and use of this area and domestic other regional bloodstone resources.Length of bow mountain range mining company three selects factory and office's reason bloodstone to go into operation in 2005, according to the thick partially advantage of processing ore grain size number, the employing thickness is separated, coarse fraction adopts spiral gravity treatment, fine fraction to adopt the process integration of anion reverse floatation, comprehensive concentrate grade reaches more than 67%, the ferrous metal rate of recovery surpasses 70%, for a new model is set up in the sorting processing of bloodstone.
At present the hematite flotation Study on Technology is confined to traditional flotation device sorting process, and only at home some mammoth mills be applied.This tradition flotation device sorting process generally all adopts a thick essence three to sweep work flow, just can obtain qualified concentrate containing and product from failing, promptly obtains roughly selecting concentrate and rougher tailings through the floatation feed after sizing mixing after roughly selecting the flotation device sorting; Roughly select concentrate and obtain the concentrate product after by the precision sorting flotation machine sorting; Rougher tailings obtains product from failing after scanning by three sections flotation devices; The middle mineral products that obtain in the floatation process return the leading portion flotation operation successively.This process characteristic is: long flow path, and equipment is many, and power consumption is big, and investment is big, and maintenance capacity is big, the operating cost height.
Summary of the invention
Problem in view of prior art exists the purpose of this invention is to provide a kind of process simplification, small investment, and power consumption and maintenance capacity are little, the bloodstone column type short flow reverse floatation process that operating cost is low.
Bloodstone column type short flow reverse floatation process of the present invention comprises that slurry preparation, post are roughly selected, post is scanned, chats concentrates magnetic separation four parts, and its step is as follows:
A, will raw ore and floating agent add in the flowsheet of slurry agitation bucket and stir;
The floatation feed that b, stirring form is roughly selected from flowing to roughly select in the flotation column, and the hematite concentrate product is directly from selecting the flotation column underflow opening to discharge mutually; The upper foam of roughly selecting flotation column is sucked by foam absorber scans flotation column;
C, enter scan flotation column roughly select the further sorting in scanning flotation column of foam mine tailing, scavenger concentrate is discharged and is entered Buffer Pool from scanning the flotation column underflow opening; Scanning the upper foam mine tailing of flotation column discharges through debris tube;
D, with the chats pump scavenger concentrate in the Buffer Pool is delivered to and concentrates magnetic separator and concentrate magnetic separation, the concentrate that concentrates magnetic separation flows automatically and is back to the flowsheet of slurry agitation bucket, sorting once more after comprehensively sizing mixing with floatation feed; The mine tailing that concentrates magnetic separation is discharged through debris tube.
Bloodstone column type short flow reverse floatation screening installation of the present invention comprises flotation column, concentrates magnetic separator, the tank level control system that is made of electric control valve, pressure sensor and PID instrument.Setting is roughly selected flotation column and is scanned each one of flotation column, and the inlet of roughly selecting flotation column connects the flowsheet of slurry agitation bucket, and the foam tank outlet of roughly selecting flotation column is connected with the feeding mouth of scanning flotation column by pipeline; Scan flotation column and be provided with foam absorber, scan the flotation column underflow opening and have Buffer Pool, Buffer Pool links to each other by pipeline with concentrated magnetic separator, between be provided with the chats pump; Concentrate magnetic separator concentrate mouth and flowsheet of slurry agitation bucket and be interconnected, the mine tailing mouth that concentrates magnetic separator is provided with and scans the flotation column foam tank and exports the debris tube that links to each other.
The present invention adopts eddy flow-static microbubble floatation column screening installation of deciding, roughly select flotation column and can directly sub-elect the hematite concentrate product, after roughly selecting foam and scanning by follow-up flotation column, directly obtain product from failing, only need one slightly to sweep two sections operations, not only improve the concentrate grade and the rate of recovery, obtained qualified tailings simultaneously.Compare with traditional flotation device sorting process, column type short flow reverse floatation process is obviously simplified, small investment not only, and power consumption is little, and floor space and maintenance capacity are little, and operating cost is low.
Description of drawings
Fig. 1 is a sorting process FB(flow block) of the present invention.
Fig. 2 is a screening installation system diagram of the present invention.
Among the figure: flowsheet of slurry agitation bucket 1, roughly select flotation column 2, roughly select flotation column underflow opening 3, bubble generator 4, circulating pump 5, pipeline 6, foam absorber 7, scan flotation column 8, scan flotation column underflow opening 9, debris tube 10, Buffer Pool 11, chats pump 12, concentrate magnetic separator 13.
The specific embodiment
Below in conjunction with accompanying drawing one embodiment of the present of invention are further described:
Shown in Fig. 1,2, bloodstone column type short flow reverse floatation process of the present invention, at first raw ore B and floating agent A are fed in the flowsheet of slurry agitation bucket 1 together, stir by the impeller in the flowsheet of slurry agitation bucket 1, mixing time is 10～15 minutes, and stirring the floatation feed mass percent concentration that forms is 35%～45%.Floatation feed flows automatically to from flowsheet of slurry agitation bucket 1 and roughly selects in the flotation column 2, roughly selects under the effect of bubble generator 4 and circulating pump 5, roughly selects concentrate D and discharges from roughly selecting flotation column underflow opening 3, and this concentrate is qualified hematite concentrate product; Roughly select flotation column 2 upper foam and be delivered to scan in the flotation column 8 by foam absorber 7 and scan, scavenger concentrate E discharges and flows into chats Buffer Pools 11 from scanning flotation column underflow opening 9; The upper foam of scanning flotation column 8 is final product from failing F, and this mine tailing is discharged by debris tube 10.Scavenger concentrate E in the Buffer Pool 11 is delivered to concentrated magnetic separator 13 by chats pump 12 and concentrates magnetic separation, and the concentrate C gravity flow that concentrates magnetic separation is back to flowsheet of slurry agitation bucket 1, sorting once more after comprehensively sizing mixing with floatation feed; The mine tailing that concentrates magnetic separation is discharged through debris tube 10.
Shown in Figure 2, bloodstone column type short flow reverse floatation screening installation of the present invention mainly by flowsheet of slurry agitation bucket 1, is roughly selected flotation column 2, scans flotation column 8, concentrates magnetic separator 13 and tank level control system and constitutes.Two flotation columns 2 are arranged and are linked to each other by discrepancy in elevation ladder with 8, and roughly selecting flotation column 2, to scan flotation column 8 big, be convenient to roughly select flotation column 2 upper stratas froth pulp oneself flow to and scan in the flotation column 8.The inlet of roughly selecting flotation column 2 is connected with flowsheet of slurry agitation bucket 1, the outlet of its foam tank 6 links to each other with the feeding mouth of scanning flotation column 8 by the road, scan flotation column 8 and be provided with foam absorber 7, scan flotation column underflow opening 9 and have Buffer Pool 11, Buffer Pool 11 and thickener magnetic separator 13 are connected by pipeline, between be provided with chats pump 12; Be connected with the pipeline that links to each other with flowsheet of slurry agitation bucket 1 on the concentrate mouth of concentrated magnetic separator 13, the mine tailing mouth that concentrates magnetic separator 13 is provided with and scans the debris tube 10 that the outlet of flotation column foam tank links to each other.
Claims (2)
1, bloodstone column type short flow reverse floatation process is characterized in that: comprise that slurry preparation, post are roughly selected, post is scanned, chats concentrates magnetic separation four parts, its step is as follows:
A, raw ore (B) and medicament (A) added to stir in the flowsheet of slurry agitation bucket (1) size mixing;
The floatation feed gravity flow that b, stirring form enters to roughly select in the flotation column (2) roughly selects, and hematite concentrate product (D) is directly discharged from roughly selecting flotation column underflow opening (3); The upper foam mine tailing of roughly selecting flotation column (2) is sucked by foam absorber (7) scans flotation column (8);
C, roughly select the further sorting in scanning flotation column (8) of foam mine tailing, scavenger concentrate (E) flows into Buffer Pool (11) from scanning flotation column underflow opening (9); Scanning flotation column (8) upper foam mine tailing discharges through debris tube (10);
D, with chats pump (12) scavenger concentrate (E) in the Buffer Pool (11) is delivered to concentrated magnetic separator (13) and concentrates magnetic separation, the concentrate (C) that concentrates magnetic separation flows automatically and is back to flowsheet of slurry agitation bucket (1), sorting once more after comprehensively sizing mixing with floatation feed; The mine tailing that concentrates magnetic separation is discharged through debris tube (10).
2, bloodstone column type short flow reverse floatation screening installation, comprise flotation column, concentrate magnetic separator, the tank level control system that constitutes by electric control valve, pressure sensor and PID instrument, it is characterized in that: described flotation column is divided into to be roughly selected flotation column (2) and scans flotation column (8), the inlet of roughly selecting flotation column (2) connects flowsheet of slurry agitation bucket (1), and the foam tank outlet of roughly selecting flotation column (2) is connected with the feeding mouth of scanning flotation column (8) by pipeline (6); Scan flotation column (8) and be provided with foam absorber (7), scan flotation column underflow opening (9) and have Buffer Pool (11), Buffer Pool (11) links to each other by chats pump (12) with concentrated magnetic separator (13); The concentrate mouth that concentrates magnetic separator (13) is connected with flowsheet of slurry agitation bucket (1), and the mine tailing mouth that concentrates magnetic separator (13) is provided with and scans flotation column (8) foam tank and exports the debris tube (10) that links to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100977515A CN100429001C (en) | 2006-11-25 | 2006-11-25 | Column type short flow reverse floatation process and apparatus for hematite |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100977515A CN100429001C (en) | 2006-11-25 | 2006-11-25 | Column type short flow reverse floatation process and apparatus for hematite |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1966154A CN1966154A (en) | 2007-05-23 |
| CN100429001C true CN100429001C (en) | 2008-10-29 |
Family
ID=38075236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100977515A Expired - Fee Related CN100429001C (en) | 2006-11-25 | 2006-11-25 | Column type short flow reverse floatation process and apparatus for hematite |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100429001C (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101773869B (en) * | 2009-01-13 | 2012-08-22 | 鞍钢集团矿业公司 | Process for processing low grade hematite ore |
| CN101703965B (en) * | 2009-10-16 | 2013-05-08 | 中国铝业股份有限公司 | Bauxite column-type floatation method |
| CN101773873B (en) * | 2010-03-04 | 2013-10-30 | 中国矿业大学 | Slime separation method and equipment |
| CN102489414A (en) * | 2011-12-21 | 2012-06-13 | 鞍钢集团矿业公司 | Equipment and process for re-beneficiating reverse floatation tailings of lean hematite |
| CN102527521A (en) * | 2012-01-13 | 2012-07-04 | 鞍钢集团矿业公司 | Application of flotation columns to reverse flotation of lean hematite |
| CN103977913B (en) * | 2014-05-19 | 2017-03-08 | 合肥学院 | Flotation column and the method for floating of lean iron mine |
| CN104815753B (en) * | 2015-04-30 | 2017-02-22 | 中国地质科学院矿产综合利用研究所 | Floating agglomeration electromagnetic fine selection equipment |
| CN106733226B (en) * | 2016-12-19 | 2019-03-01 | 华北理工大学 | The pillar cation reverse flotation technique of Hematite |
| CN111295246B (en) * | 2017-10-06 | 2022-07-22 | 淡水河谷公司 | Method for concentrating iron ore slurry |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56115647A (en) * | 1980-02-18 | 1981-09-10 | Dowa Mining Co Ltd | Floatation method for hematite |
| CN1052439A (en) * | 1990-11-06 | 1991-06-26 | 唐山工程技术学院 | Floatation of iron ore with acidic medium in fill-type static floatation column |
| CN1371760A (en) * | 2001-02-27 | 2002-10-02 | 鞍钢集团新钢铁有限责任公司 | Combined use method for iron ore anion reverse floatation agent |
| CN1548234A (en) * | 2003-05-23 | 2004-11-24 | 鞍钢集团鞍山矿业公司研究所 | Ore dressing process of treating poor hematite |
-
2006
- 2006-11-25 CN CNB2006100977515A patent/CN100429001C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56115647A (en) * | 1980-02-18 | 1981-09-10 | Dowa Mining Co Ltd | Floatation method for hematite |
| CN1052439A (en) * | 1990-11-06 | 1991-06-26 | 唐山工程技术学院 | Floatation of iron ore with acidic medium in fill-type static floatation column |
| CN1371760A (en) * | 2001-02-27 | 2002-10-02 | 鞍钢集团新钢铁有限责任公司 | Combined use method for iron ore anion reverse floatation agent |
| CN1548234A (en) * | 2003-05-23 | 2004-11-24 | 鞍钢集团鞍山矿业公司研究所 | Ore dressing process of treating poor hematite |
Non-Patent Citations (1)
| Title |
|---|
| 赤铁矿的正－反浮选研究. 刘亚辉，孙炳泉. 金属矿山，第1期. 2004 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1966154A (en) | 2007-05-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100429001C (en) | Column type short flow reverse floatation process and apparatus for hematite | |
| CN100460079C (en) | Column type short-stage tungseten crude grading process and equipment | |
| CN102716814B (en) | Novel flotation column serial connection test system for improving flotation granularity upper limit | |
| CN102430481B (en) | Sorting process for high-ash and difficult-separation coal slime | |
| CN101058083A (en) | Bauxite column type short flow-process separating technology and equipment | |
| CN103934117B (en) | The technique of pneumo type flotation post flotation Lead-zinc mine tailings | |
| CN103736569B (en) | A kind of beneficiation method of sulphide ore | |
| CN101844113B (en) | Flotation machine for efficiently recovering fine-particle minerals | |
| CN108380397A (en) | A kind of recovery method of low concentration calcite type containing mica fluorite tailing | |
| CN105689155A (en) | Multi-product flotation column separation equipment and method | |
| CN101773873A (en) | Slime separation method and equipment | |
| CN205926037U (en) | Synthesize and optimize flotation equipment | |
| CN105583086A (en) | Flotation column flotation method for flake graphite | |
| CN105880032B (en) | A kind of mid-low grade collophanite ore floats combined sorting method again | |
| CN201052478Y (en) | Bauxite pole type short flow path separation equipment | |
| CN102274789A (en) | Recleaning method of fine-grain embedded hematite flotation tailings | |
| CN102784723A (en) | Magnetite flotation column cationic reverse flotation-graded regrinding combined concentration process | |
| CN105540570B (en) | Method for producing medium-carbon and high-carbon crystalline flake graphite by two-step method | |
| CN101693226A (en) | Desliming method of high-talcose type nickel ore in mineral processing | |
| CN102921541B (en) | Process for recovering flotation tailings of magnetite by adopting strong magnetic-anionic reverse flotation of hematite | |
| CN101786048A (en) | Mineral floatation technique | |
| CN212263543U (en) | Gravity sorting system | |
| CN102120193A (en) | Process for feeding reselected rougher tailings of spiral chute into medium-intensity magnetic scavenging | |
| CN109865585B (en) | Method for improving yield of extremely-poor ore | |
| CN2656014Y (en) | Cyclo-cell |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081029 Termination date: 20161125 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |