CN101966485A - Before-filtering magnetic separator concentrating process - Google Patents
Before-filtering magnetic separator concentrating process Download PDFInfo
- Publication number
- CN101966485A CN101966485A CN 200910012728 CN200910012728A CN101966485A CN 101966485 A CN101966485 A CN 101966485A CN 200910012728 CN200910012728 CN 200910012728 CN 200910012728 A CN200910012728 A CN 200910012728A CN 101966485 A CN101966485 A CN 101966485A
- Authority
- CN
- China
- Prior art keywords
- magnetic separator
- concentrate
- concentrating
- ore
- filter
- 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.)
- Granted
Links
Images
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention relates to a before-filtering magnetic separator concentrating process, which comprises primary ore grinding, rotational flow classification, spiral chute rough concentration, spiral chute refined concentration, weak-median magnetic scavenging four-grade separation operation, fine-screen re-grinding and dewatering and concentrating operation and is characterized in that: the dewatering and concentrating operation comprises the steps of feeding four-grade dewatering tank underflow ore pulp of which the concentration is 20 to 30 percent, the grain size is -200 meshes, the content is 90 to 97 percent and the grade is 67 to 67.5 percent into an ore pulp tank, allowing the ore pulp in the ore pulp tank to flow into a barrel type magnetic separator from a pipeline for concentrating operation, concentrating the ore pulp until concentrate at the concentration of 40 to 50 percent is obtained and feeding the concentrate into a disc type filter for operation, wherein the concentrate generated by the disc type filter is used as the final concentrate; the filtrate of the filter and the overflow liquid are returned to the barrel type magnetic separator for re-separation, and the tailings of the barrel type magnetic separator are introduced into a general tailing chute. The magnetic separator concentrating process has the advantages that: when the barrel type magnetic separator is used for the concentrating operation, the height of equipment is effectively lowered, energy consumption is reduced and a good concentrating effect is achieved.
Description
Technical field
The invention belongs to the technique of preparing field, particularly relate to a kind of concentrated ore-dressing technique of preceding magnetic separator that is used to filter.
Background technology
Poor magnetic iron ore selecting process is that stage grinding → single magnetic separation → dusting cover is regrinded → the concentrated operation of drench pit.Its technological process is by feeding primary ball mill for the ore deposit sealing-tape machine, and its ore discharge is raised by the slag stock pump and delivered to the cyclone group No. one time.Behind cyclone classification, grinding machine is returned in the sand setting gravity flow No. one time, and overflow is raised by pump and delivered to one section permanent magnetic motor.Behind the one stages of magnetic separation machine jettisoning mine tailing, its rough concentrate is raised by pump and is delivered to secondary cyclone group.The sand setting gravity flow of secondary cyclone enters secondary ball mill.Discharge merges together with a cyclone overflow behind secondary grinding, and by being pumped to a stages of magnetic separation machine, the overflow of secondary cyclone is by one section permanent magnetism drench pit of pumping.Its sand setting is from flowing into two sections permanent magnetic motors behind the whipping.
Two stages of magnetic separation concentrate are by being pumped to one section high frequency vibrating screen.The high frequency vibrating screen sieve flows into regrind mill down certainly after the dehydration of dehydration permanent magnetic motor, the ore discharge of regrinding is by being pumped to two sections drench pits, and the drench pit sand setting is from flowing into three sections permanent magnetic motors.
Three stages of magnetic separation concentrate are by being pumped to two sections high frequency vibrating screens.The vibration sieve sieve is gone up after flowing into the dehydration permanent magnetic motor and is regrinded, and two sections dusting cover undersizes are from flowing into four sections permanent magnetism drench pits.
Four sections drench pit sand settings are raised the mine-separating box of delivering to filtration plant by pump, enter disk filter after five sections drench pit dehydrations.The filter cake that filter is discharged is final iron ore concentrate.Magnetic dewater cone is a kind of magnetic force and the symphyogenetic magnetic plant of gravity.It can sub-elect a large amount of fine tailings, has dehydration concurrently.Be usually used in magnetic mineral stage grinding, the stage grading flow process behind the primary grinding or the secondary grinding magnetic separation before desliming and preliminary election operation, the concentrated operation before also can be used for filtering, as shown in Figure 1.
Usually select for use magnetic dewater cone in the existing processes flow process as the concentrator before filtering.
Magnetic dewater cone is a kind of magnetic force and the symphyogenetic magnetic plant of gravity.It can sub-elect a large amount of fine tailings, has dehydration concurrently.Be usually used in magnetic mineral stage grinding, the stage grading flow process behind the primary grinding or the secondary grinding magnetic separation before desliming and preliminary election operation, the concentrated operation before also can be used for filtering.
Magnetic dewater cone is simple in structure, and is easy to operate, easy to manufacture, and shortcoming is that water consumption is big, and in addition because in-house facility is higher, and equipment itself requires and must give the ore deposit in the top, the bottom ore discharge, and it is big to dispose the discrepancy in elevation.
Summary of the invention
The purpose of this invention is to provide a kind of magnetic separator before reducing construction investment, being used to of cutting down the consumption of energy and filtering and concentrate ore-dressing technique.
The objective of the invention is to realize by following technical proposals:
A kind of concentrated ore-dressing technique of preceding magnetic separator that is used to filter of the present invention, comprise ore grinding one time, the eddy flow thickness grading, spiral chute is roughly selected, spiral chute is selected and weak-and middle magnetic scans four stages of magnetic separation section operations, dusting cover is regrinded → is dewatered and concentrates operation, it is characterized in that it is to be 20-30% with concentration that described dehydration concentrates operation, granularity is 90-97% for-200 order content, grade is that four sections drench pit underflow ore pulps of 67-67.5% feed pulp tank, again the ore pulp in the pulp tank is gone into drum magnetic separator through pipeline self and concentrate operation, ore pulp is concentrated to concentration feeds the disk filter operation for the 40-50% concentrate, the concentrate of its disk filter is a final concentrate, the filtrate of filter and overflow are returned drum magnetic separator and are selected, and the drum magnetic separator mine tailing advances total mine tailing chute.
Advantage of the present invention is: concentrate ore dressing with existing magnetic dewater cone and compare, adopt drum magnetic separator to concentrate the height that operation has reduced equipment effectively, reduced energy consumption simultaneously, and concentrated effect is good, cost is low.
Description of drawings
Fig. 1 is existing process chart.
Fig. 2 adopts the process chart of magnetic separator as the magnetic dewater cone concentrator behind four stages of magnetic separation of the present invention.
The specific embodiment
Describe the specific embodiment of the present invention in detail below in conjunction with embodiment.
As shown in Figure 2, a kind of concentrated ore-dressing technique of preceding magnetic separator that is used to filter of the present invention comprises by feeding primary ball mill for the ore deposit sealing-tape machine, its ore discharge is raised by the slag stock pump and is delivered to the cyclone group No. one time, behind cyclone classification, grinding machine is returned in the sand setting gravity flow No. one time, and overflow is raised by pump and delivered to one section permanent magnetic motor.Behind the one stages of magnetic separation machine jettisoning mine tailing, its rough concentrate is raised by pump and is delivered to secondary cyclone group.The sand setting gravity flow of secondary cyclone enters secondary ball mill.Discharge merges together with a cyclone overflow behind secondary grinding, and by being pumped to a stages of magnetic separation machine, the overflow of secondary cyclone is by one section permanent magnetism drench pit of pumping.Its sand setting is from flowing into two sections permanent magnetic motors behind the whipping.
Two stages of magnetic separation concentrate are by being pumped to one section high frequency vibrating screen.The high frequency vibrating screen sieve flows into regrind mill down certainly after the dehydration of dehydration permanent magnetic motor, the ore discharge of regrinding is by being pumped to two sections drench pits, and the drench pit sand setting is from flowing into three sections permanent magnetic motors.
Three stages of magnetic separation concentrate are by being pumped to two sections high frequency vibrating screens.The vibration sieve sieve is gone up after flowing into the dehydration permanent magnetic motor and is regrinded, two sections dusting cover undersize operations after flowing into four sections permanent magnetism drench pits.
Of the present inventionly it is characterized in that it is that five sections drench pits are replaced by magnetic separator that described dehydration concentrates operation, being about to concentration is 20-30%, granularity is-200 order content 90-97%, grade is that four sections drench pit underflow ore pulps of 67-67.5% feed pulp tank, again the ore pulp in the pulp tank is gone into drum magnetic separator through pipeline self and concentrate operation, drum magnetic separator is concentrated to concentration with ore pulp and feeds the disk filter operation for the 40-50% concentrate, the concentrate of its disk filter is a final concentrate, the filtrate of filter and overflow are returned drum magnetic separator and are selected, and the drum magnetic separator mine tailing advances total mine tailing chute.
Be usually used in magnetic mineral stage grinding, the stage grading flow process behind the primary grinding or the secondary grinding magnetic separation before desliming and preliminary election operation, the concentrated operation before also can adopting magnetic separator to filter.
The present invention has reduced construction investment, has reduced energy consumption, for the mine has obtained economic benefit.
Claims (1)
1. one kind is used to filter the concentrated ore-dressing technique of preceding magnetic separator, comprise ore grinding one time, the eddy flow thickness grading, spiral chute is roughly selected, spiral chute is selected and weak-and middle magnetic scans four stages of magnetic separation section operations, dusting cover is regrinded → is dewatered and concentrates operation, it is characterized in that it is that concentration is 20-30% that described dehydration is concentrated operation, granularity is 90-97% for-200 order content, grade is that four sections drench pit underflow ore pulps of 67-67.5% feed pulp tank, again the ore pulp in the pulp tank is gone into drum magnetic separator through pipeline self and concentrate operation, ore pulp is concentrated to concentration feeds the disk filter operation for the 40-50% concentrate, the concentrate of its disk filter is a final concentrate, the filtrate of filter and overflow are returned drum magnetic separator and are selected, and the drum magnetic separator mine tailing advances total mine tailing chute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910012728 CN101966485B (en) | 2009-07-28 | 2009-07-28 | Before-filtering magnetic separator concentrating process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910012728 CN101966485B (en) | 2009-07-28 | 2009-07-28 | Before-filtering magnetic separator concentrating process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101966485A true CN101966485A (en) | 2011-02-09 |
| CN101966485B CN101966485B (en) | 2012-12-19 |
Family
ID=43545742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910012728 Active CN101966485B (en) | 2009-07-28 | 2009-07-28 | Before-filtering magnetic separator concentrating process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101966485B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102614712A (en) * | 2012-04-26 | 2012-08-01 | 鞍钢集团矿业公司 | New process for concentrating and dehydrating iron concentrate |
| CN103464283A (en) * | 2013-09-25 | 2013-12-25 | 云南大红山管道有限公司 | Magnetic field screening machine and beneficiation method thereof |
| CN107149978A (en) * | 2017-07-04 | 2017-09-12 | 鞍钢集团矿业有限公司 | A kind of ore-dressing technique that tumbling ball mill is substituted with agitating mill |
| CN107617254A (en) * | 2017-11-15 | 2018-01-23 | 中冶北方（大连）工程技术有限公司 | A kind of pre-classification disk filter and filter method |
| CN112871438A (en) * | 2020-12-22 | 2021-06-01 | 攀枝花青杠坪矿业有限公司 | Method for recovering ilmenite from iron ore dressing tailings |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5632380A (en) * | 1995-10-17 | 1997-05-27 | Shaneway, Inc. | Ferrous material recovery system |
| CN101318159B (en) * | 2007-06-08 | 2013-04-10 | 鞍钢集团矿业公司 | Process for recycling Anshan type lean octahedral iron ore mine tailing |
| CN101468330B (en) * | 2007-12-24 | 2012-06-06 | 鞍钢集团矿业公司 | Technique for processing mixed type iron ore |
-
2009
- 2009-07-28 CN CN 200910012728 patent/CN101966485B/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102614712A (en) * | 2012-04-26 | 2012-08-01 | 鞍钢集团矿业公司 | New process for concentrating and dehydrating iron concentrate |
| CN103464283A (en) * | 2013-09-25 | 2013-12-25 | 云南大红山管道有限公司 | Magnetic field screening machine and beneficiation method thereof |
| CN103464283B (en) * | 2013-09-25 | 2016-01-27 | 云南大红山管道有限公司 | A kind of Magnetic field screening separator and beneficiation method thereof |
| CN107149978A (en) * | 2017-07-04 | 2017-09-12 | 鞍钢集团矿业有限公司 | A kind of ore-dressing technique that tumbling ball mill is substituted with agitating mill |
| CN107149978B (en) * | 2017-07-04 | 2019-11-05 | 鞍钢集团矿业有限公司 | A kind of ore-dressing technique with agitating mill substitution tumbling ball mill |
| CN107617254A (en) * | 2017-11-15 | 2018-01-23 | 中冶北方（大连）工程技术有限公司 | A kind of pre-classification disk filter and filter method |
| CN107617254B (en) * | 2017-11-15 | 2022-11-29 | 中冶北方（大连）工程技术有限公司 | Pre-grading disc type filter and filtering method |
| CN112871438A (en) * | 2020-12-22 | 2021-06-01 | 攀枝花青杠坪矿业有限公司 | Method for recovering ilmenite from iron ore dressing tailings |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101966485B (en) | 2012-12-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102430481B (en) | Sorting process for high-ash and difficult-separation coal slime | |
| CN103143432B (en) | Efficient crushing and three-section type screening method of coking coal gravity middings | |
| CN103831164B (en) | In a kind of coking, coal heavily floats combined sorting technique | |
| CN101664715B (en) | Ore-dressing technique capable of effectively improving comprehensive utilization rate of mine resources | |
| AU2014334524A1 (en) | A method of comprehensively recycling gold flotation tailings and the equipments | |
| CN105597915A (en) | Wide-grain-grade double-dense-medium process for separating all coarse coal slime | |
| CN102921521B (en) | Ore grinding grading method for improving ore grinding processing capacity | |
| CN102319614A (en) | Benefication method for recovering ilmenite from iron tailings in Shandong area | |
| CN104815748B (en) | The broken mill floatation process of two sections of coal in a kind of coking | |
| CN102030462A (en) | Processing method for refined quartz sand | |
| CN101966485B (en) | Before-filtering magnetic separator concentrating process | |
| CN111229452B (en) | Beneficiation method suitable for altered rock type gold ore | |
| CN110560258B (en) | Device and process for selecting ultra-clean coal by physical cyclone recovery jigging overflow coal slime | |
| CN102430480A (en) | Coarse clean coal regrinding recleaning separation technique | |
| CN104384020A (en) | Depth-induced crushing mineral separation technology of super-lean magnetic iron ore | |
| CN108855584A (en) | A kind of difficulty selects the ore-dressing technique of producing high-quality iron ore concentrate by low-grade magnetic iron ore | |
| CN104492590A (en) | Complex iron ore sorting method | |
| CN103495500A (en) | Low-energy-consumption method for separating ilmenites from tailings in iron choosing plant | |
| CN101703961A (en) | Novel process of molybdenum ore dressing flow | |
| CN104174483A (en) | Method for sorting fine-particle strongly magnetic mineral in hematite beneficiation process | |
| CN109772576B (en) | Method for fully utilizing gold tailings | |
| CN100563838C (en) | Mine tailing reclaims sulphur iron separation ore-sorting system and method | |
| CN104772210A (en) | Ore dressing process for tungsten dressing tailing comprehensive utilization | |
| CN108927281A (en) | A kind of gold mine grinding classification system and grind grading treatment process | |
| CN103752428A (en) | Beneficiation method of vanadium titano-magnetite |
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 | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 114001 Anshan District, Liaoning, No. 219 Road, No. 39, Tiedong Patentee after: Anshan Iron and Steel Group Mining Co., Ltd. Address before: 114001 Anshan District, Liaoning, No. 219 Road, No. 39, Tiedong Patentee before: Angang Group Mine Company |