CN111036390A - Beneficiation method for magnetic separation mixed ore by wet pre-concentration method before storage - Google Patents
Beneficiation method for magnetic separation mixed ore by wet pre-concentration method before storage Download PDFInfo
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- CN111036390A CN111036390A CN201910806691.7A CN201910806691A CN111036390A CN 111036390 A CN111036390 A CN 111036390A CN 201910806691 A CN201910806691 A CN 201910806691A CN 111036390 A CN111036390 A CN 111036390A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B7/00—Combinations of wet processes or apparatus with other processes or apparatus, e.g. for dressing ores or garbage
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B9/00—General arrangement of separating plant, e.g. flow sheets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C1/00—Magnetic separation
- B03C1/02—Magnetic separation acting directly on the substance being separated
- B03C1/30—Combinations with other devices, not otherwise provided for
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C9/00—Combinations with other devices, e.g. fans, expansion chambers, diffusors, water locks
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C9/00—Combinations with other devices, e.g. fans, expansion chambers, diffusors, water locks
- B04C2009/002—Combinations with other devices, e.g. fans, expansion chambers, diffusors, water locks with external filters
Abstract
The invention provides a beneficiation method for mixed ore by wet pre-concentration magnetic separation in front of a bin, which comprises the following steps: crushing fine ores, warehousing, quantitatively distributing materials, performing preselection treatment, performing preselection concentrate treatment, performing vacuum filtration, performing preselection tailing treatment, and performing slag dewatering treatment; the beneficial effects are that: the ore dressing method for the wet pre-concentration method magnetic separation mixed ore before the bin is provided by the invention has the advantages that the ore fines which are about to enter the mill are sorted by a large-particle magnetic separator (a pre-concentration machine for short), and building aggregates such as stones, rice stones, coarse sand and the like are selected in advance, so that the purposes of improving the grinding grade, reducing useless ore grinding, saving energy, reducing consumption, increasing yield and improving efficiency are achieved.
Description
Technical Field
The invention relates to the technical field of beneficiation methods, in particular to a beneficiation method for magnetic separation mixed ore by a wet pre-concentration method before a bin.
Background
The ore structure mainly comprises medium and fine grain semi-self-deformation and self-deformation crystal structures, cross-substitution false images and cross-substitution residual structures of glauconite, glauconite and cross-substitution pyroxene, and then a coarse grain crystal change structure, a fibrous granite crystal change structure, a non-uniform grain granite crystal change structure, a few sieve crystal change structure, a cross-substitution perforation structure and the like; the natural types of the ore deposit are mainly two natural types of strip ore block ore according to the structural configuration of the ore. Wherein the strip ore accounts for about 67.82%, and the lump ore accounts for about 32.18%;
in the prior art, the industrial type of ore deposit ore is iron ore to be selected, but the traditional ore dressing method has low ground powder level and high grinding and selecting cost; the comprehensive utilization of resources is low, and waste is difficult to realize; meanwhile, the discharge amount of the tailings pond is increased, and the economic benefit of enterprises is influenced.
Disclosure of Invention
The invention aims to provide a beneficiation method for magnetically separating mixed ores by a pre-bin wet type pre-selection method, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a beneficiation method for mixed ore by magnetic separation through a pre-warehouse wet type pre-concentration method comprises the following steps:
s1, putting the crushed powder ore into a bin, performing coarse crushing on the raw ore, performing secondary crushing on the raw ore, screening the crushed raw ore by a screening machine, directly outputting and storing fine crushed ore bodies, and conveying the rest of the crushed powder ore to a pre-selection powder ore bin by a rubber belt conveyor for waiting wet pre-selection treatment;
s2, quantitatively distributing materials, arranging a quantitative disc feeder at a discharge port of the pre-selection fine ore bin, and conveying the quantitatively distributed materials to a wet permanent magnet coarse particle magnetic separator through a belt conveyor;
s3, performing preselection treatment, namely, preselecting the broken fine ores by a wet-type permanent magnet coarse grain magnetic separator to obtain preselection concentrate and preselection tailings, finely dividing the preselection concentrate by a preselection concentrate grading linear sieve, and finely dividing the preselection tailings by a preselection tailing grading linear sieve;
s4, pre-selecting concentrate, conveying mineral materials in a pre-selecting concentrate grading linear sieve to a concentration magnetic separator for screening treatment by a mineral slurry pump through concentration magnetic separation, screening the mineral materials into mineral slurry and pre-selecting concentrate by the concentration magnetic separator, conveying the mineral slurry to a tailing concentrator for treatment by a tailing slurry pump, and conveying the residual concentrate to a permanent magnet external filtering type cylinder vacuum filter for treatment;
s5, carrying out vacuum filtration, processing by using a permanent magnet external filtration type cylindrical vacuum filter to generate filter filtrate and pre-selected concentrate, conveying the filter filtrate to a pipeline connected with a tailing slurry pump through an submerged slurry pump, and conveying the pre-selected concentrate to a pre-selected concentrate bin through a rubber belt conveyor;
s6, pre-selecting tailings, dividing the mineral aggregate subjected to the pre-selecting tailings grading linear screen treatment into sand and stone and residual slag, conveying the sand and stone through a rubber belt conveyor and discharging, and conveying the residual slag to a slag slurry pump through a cyclone and conveying the residual slag to the interior of a hydrocyclone for treatment;
and S7, performing slag dewatering treatment, namely putting the slag treated by the hydrocyclone in the step six into a hydrocyclone sand setting dewatering high-frequency sieve for dewatering, conveying and discharging the dewatered sand and stone material by a rubber belt conveyor, and conveying the slurry generated by dewatering into a tailing thickener by a tailing slurry pump for treatment.
Preferably, the model of the belt conveyor in the step one is TD75-12080, the model of the belt conveyor in the step two is TD75-8050, the model of the belt conveyor in the step five is TD75-10080, the model of the belt conveyor in the step six is TD75-6550, and the model of the belt conveyor in the step seven is TD 75-8050.
Preferably, in the second step, the model of the quantitative disc feeder is PDX20, and the model of the wet permanent magnet coarse-grained magnetic separator is CTS 1240.
Preferably, in the third step, the model of the concentrate grading linear sieve is ZKR3060H, and the model of the pre-selected tailing grading linear sieve is ZKR 2460H.
Preferably, in the fourth step, the model of the concentrated magnetic separation slurry feeding pump is 100ZBD-400, the model of the concentrated magnetic separator is NCTB1024, and the model of the tailing slurry pump is 250 ZBD-530.
Preferably, in the fifth step, the model of the permanent magnet external filtering type cylinder vacuum filter is GYW-20, and the model of the submerged slurry pump is 40P-LP.
Preferably, in step six, the model of the cyclone slurry feed pump is 125ZBD-630 and the model of the hydrocyclone is FX 610.
Preferably, in the seventh step, the model of the cyclone sand setting and dewatering high-frequency screen is VD 1836.
Compared with the prior art, the invention has the beneficial effects that:
1. the ore dressing method for the wet pre-concentration method magnetic separation mixed ore before the bin is provided by the invention, the fine ore to enter the mill is sorted by a large-particle magnetic separator (a pre-concentration machine for short), and building aggregates such as stones, rice stones, coarse sand and the like are selected in advance, so that the purposes of improving the grinding grade, reducing useless ore grinding, saving energy, reducing consumption, increasing yield and improving efficiency are achieved;
2. the conventional wet pre-selection system pre-selection machine is arranged in front of the ball mill, and the rough concentrate directly enters the ball mill without dehydration; and screening the mixed aggregate from the tailings by a dewatering screen. The mode of linkage of grinding and wet pre-selection influences the operating rate of the system; the added value of the mixed aggregate is not high;
3. the invention provides a beneficiation method for magnetically separating mixed ores by a pre-bin wet pre-separation method, which is characterized in that tailings separated by a pre-separator in a wet pre-separation system are screened by a linear screen, classified by a cyclone, and dehydrated by a dehydration screen to be processed into three aggregates of small stones, rice stones and coarse sands, so that the tailings can be regenerated and utilized.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a technical scheme that: a beneficiation method for mixed ore by magnetic separation through a pre-warehouse wet type pre-concentration method comprises the following steps:
s1, putting the crushed powder ore into a bin, performing coarse crushing on the raw ore, performing secondary crushing on the raw ore, screening the crushed raw ore by a screening machine, directly outputting and storing fine crushed ore bodies, and conveying the rest of the crushed powder ore into a pre-selection powder ore bin through a belt conveyor (the model is TD 75-12080) for waiting wet pre-selection treatment;
s2, quantitatively distributing materials, arranging a quantitative disc feeder (model number PDX 20) at the discharge port of the pre-selection powder ore bin, and conveying the quantitatively distributed materials to a wet permanent magnet coarse particle magnetic separator (model number CTS 1240) through a belt conveyor (model number TD 75-8050);
s3, performing preselection treatment, namely, preselecting the crushed fine ores by a wet-type permanent magnet coarse grain magnetic separator to obtain preselection concentrate and preselection tailings, finely dividing the preselection concentrate by a preselection concentrate grading linear sieve (model: ZKR 3060H), and finely dividing the preselection tailings by a preselection tailing grading linear sieve (model: ZKR 2460H);
s4, pre-selecting concentrate, conveying mineral materials in a pre-selecting concentrate grading linear sieve to a concentration magnetic separator (model is NCTB 1024) through concentration and magnetic separation by a mineral slurry pump (model is 100 ZBD-400) for screening treatment, screening the mineral materials into mineral slurry and pre-selecting concentrate by the concentration magnetic separator, conveying the mineral slurry to a tailing concentrator through a tailing slurry pump (model is 250 ZBD-530) for treatment, and conveying the residual concentrate to a permanent magnet external filtering type cylinder vacuum filter for treatment;
s5, carrying out vacuum filtration, processing by a permanent magnet external filtration type cylinder vacuum filter (model GYW-20) to generate filter filtrate and pre-selected concentrate, conveying the filter filtrate to a pipeline connected with a tailing slurry pump through an underwater slurry pump (model 40P-LP), and conveying the pre-selected concentrate to a pre-selected concentrate bin through a belt conveyor (model TD 75-10080);
s6, pre-selecting tailings, dividing the mineral aggregate subjected to the pre-selecting tailings grading linear screen treatment into sand-stone material and residual slag, conveying the sand-stone material by a belt conveyor (model: TD 75-6550) and discharging, and conveying the residual slag to a hydrocyclone (model: FX 610) for treatment by a hydrocyclone slag slurry feeding pump (model: 125 ZBD-630);
and S7, dehydrating the slag, putting the slag processed by the hydrocyclone in the sixth step into a hydrocyclone sand setting dehydration high-frequency sieve (the model is VD 1836) for dehydration, conveying and discharging the dehydrated sand and stone material by a rubber belt conveyor (the model is TD 75-8050), and conveying the slurry generated by dehydration into a tailing thickener for processing by a tailing slurry pump.
The invention has the advantages that: the ore dressing method for the wet pre-concentration method magnetic separation mixed ore before the bin is provided by the invention has the advantages that the ore fines which are about to enter the mill are sorted by a large-particle magnetic separator (a pre-concentration machine for short), and building aggregates such as stones, rice stones, coarse sand and the like are selected in advance, so that the purposes of improving the grinding grade, reducing useless ore grinding, saving energy, reducing consumption, increasing yield and improving efficiency are achieved.
The large-particle magnetic separator (preselector) is modified, a direction-changing distributor is additionally arranged, a manganese steel wear-resistant buffering grate is additionally arranged, and a groove body is pasted with thickened wear-resistant ceramic chips, so that the condition of processing-20 mm crushed fine ore is met.
Through adopting the linear sieve screening + filtering to unite dewatering system, the problem of the dehydration of large-granule rough concentrate is solved, and the requirement of the mill-removing powder-selecting ore bin on moisture is satisfied.
Screening building aggregate with different granularities from the tailings of the preselector by adopting a linear sieve; classifying materials below a sieve with the size of-5 mm by using a cyclone and dehydrating by using a dehydrating screen to obtain building sand; the fine particle ore pulp is sent to a tailing system of a dressing plant.
And (3) carrying out dry separation treatment on 20-10 mm aggregates screened from the preselecting machine tailings, and scavenging magnetic minerals to enter a rough concentrate system.
The wet type preselection system is additionally arranged in a grinding and dressing workshop of a concentrating mill, and generally has no transformation condition because the field space is insufficient. The wet pre-selection system in front of the bin can be additionally arranged in front of the mill dressing ore bin, so that the problem is effectively solved.
The conventional preselector is only suitable for processing crushed ore with the size of-16 mm, and can be used for processing ore with the size of-20 mm after being modified, so that the value of the aggregate is improved.
Conventional wet pre-selection goes directly to the mill tailing system for minus 5mm undersize material. The wet pre-selection system before the storehouse selects 5 mm-0.1 mm tailings as building sand by adopting the grading and dehydration process. The invention not only increases the income for enterprises, but also reduces the discharge of tailing ponds.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The beneficiation method for the mixed ore by the magnetic separation of the wet type pre-selection method in the front of the bin is characterized by comprising the following steps:
s1, putting the crushed powder ore into a bin, performing coarse crushing on the raw ore, performing secondary crushing on the raw ore, screening the crushed raw ore by a screening machine, directly outputting and storing fine crushed ore bodies, and conveying the rest of the crushed powder ore to a pre-selection powder ore bin by a rubber belt conveyor for waiting wet pre-selection treatment;
s2, quantitatively distributing materials, arranging a quantitative disc feeder at a discharge port of the pre-selection fine ore bin, and conveying the quantitatively distributed materials to a wet permanent magnet coarse particle magnetic separator through a belt conveyor;
s3, performing preselection treatment, namely, preselecting the broken fine ores by a wet-type permanent magnet coarse grain magnetic separator to obtain preselection concentrate and preselection tailings, finely dividing the preselection concentrate by a preselection concentrate grading linear sieve, and finely dividing the preselection tailings by a preselection tailing grading linear sieve;
s4, pre-selecting concentrate, conveying mineral materials in a pre-selecting concentrate grading linear sieve to a concentration magnetic separator for screening treatment by a mineral slurry pump through concentration magnetic separation, screening the mineral materials into mineral slurry and pre-selecting concentrate by the concentration magnetic separator, conveying the mineral slurry to a tailing concentrator for treatment by a tailing slurry pump, and conveying the residual concentrate to a permanent magnet external filtering type cylinder vacuum filter for treatment;
s5, carrying out vacuum filtration, processing by using a permanent magnet external filtration type cylindrical vacuum filter to generate filter filtrate and pre-selected concentrate, conveying the filter filtrate to a pipeline connected with a tailing slurry pump through an submerged slurry pump, and conveying the pre-selected concentrate to a pre-selected concentrate bin through a rubber belt conveyor;
s6, pre-selecting tailings, dividing the mineral aggregate subjected to the pre-selecting tailings grading linear screen treatment into sand and stone and residual slag, conveying the sand and stone through a rubber belt conveyor and discharging, and conveying the residual slag to a slag slurry pump through a cyclone and conveying the residual slag to the interior of a hydrocyclone for treatment;
and S7, performing slag dewatering treatment, namely putting the slag treated by the hydrocyclone in the step six into a hydrocyclone sand setting dewatering high-frequency sieve for dewatering, conveying and discharging the dewatered sand and stone material by a rubber belt conveyor, and conveying the slurry generated by dewatering into a tailing thickener by a tailing slurry pump for treatment.
2. The ore dressing method for the mixed ore by the wet pre-selection method for the magnetic separation before the warehouse of the claim 1 is characterized in that: the model of the belt conveyor in the first step is TD75-12080, the model of the belt conveyor in the second step is TD75-8050, the model of the belt conveyor in the fifth step is TD75-10080, the model of the belt conveyor in the sixth step is TD75-6550, and the model of the belt conveyor in the seventh step is TD 75-8050.
3. The ore dressing method for the mixed ore by the wet pre-selection method for the magnetic separation before the warehouse of the claim 1 is characterized in that: in the second step, the model of the quantitative disc feeder is PDX20, and the model of the wet type permanent magnet coarse-grained magnetic separator is CTS 1240.
4. The ore dressing method for the mixed ore by the wet pre-selection method for the magnetic separation before the warehouse of the claim 1 is characterized in that: in the third step, the model of the concentrate grading linear sieve is ZKR3060H, and the model of the pre-selected tailing grading linear sieve is ZKR 2460H.
5. The ore dressing method for the mixed ore by the wet pre-selection method for the magnetic separation before the warehouse of the claim 1 is characterized in that: in the fourth step, the model of the concentrated magnetic separation slurry feeding slurry pump is 100ZBD-400, the model of the concentrated magnetic separator is NCTB1024, and the model of the tailing slurry pump is 250 ZBD-530.
6. The ore dressing method for the mixed ore by the wet pre-selection method for the magnetic separation before the warehouse of the claim 1 is characterized in that: and in the fifth step, the model of the permanent magnet external filtering type cylinder vacuum filter is GYW-20, and the model of the submerged slurry pump is 40P-LP.
7. The ore dressing method for the mixed ore by the wet pre-selection method for the magnetic separation before the warehouse of the claim 1 is characterized in that: in the sixth step, the model of the slurry pump for feeding the slag to the hydrocyclone is 125ZBD-630, and the model of the hydrocyclone is FX 610.
8. The ore dressing method for the mixed ore by the wet pre-selection method for the magnetic separation before the warehouse of the claim 1 is characterized in that: and seventhly, setting the model of the cyclone sand settling and dewatering high-frequency sieve to be VD 1836.
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59154147A (en) * | 1983-02-18 | 1984-09-03 | Toho Kinzoku Kk | Magnetic reseparation of magnetized steel making slag particles |
| CN101513625A (en) * | 2009-03-25 | 2009-08-26 | 中钢集团马鞍山矿山研究院有限公司 | Overall utilization and treating process of iron ore mine |
| KR101638447B1 (en) * | 2015-04-03 | 2016-07-13 | 한국지질자원연구원 | Method for producting iron concentrate as sources of direct reduced iron |
| CN107029871A (en) * | 2017-04-24 | 2017-08-11 | 马钢(集团)控股有限公司 | A kind of beneficiation method of magnetic composite ore |
| CN107552221A (en) * | 2017-09-06 | 2018-01-09 | 安徽马钢工程技术集团有限公司 | A kind of chromium depleted zone coarse grain wet type pre-selecting tailings discharging technique and system |
| CN209156025U (en) * | 2018-11-14 | 2019-07-26 | 临沂会宝岭铁矿有限公司 | Wet type pre-selecting system before a kind of iron ore low-grade ore stone mill |
| CN110064507A (en) * | 2019-04-26 | 2019-07-30 | 内蒙古大中矿业股份有限公司 | A kind of ore-dressing technique of chromium depleted zone recycling and reusing |
-
2019
- 2019-08-29 CN CN201910806691.7A patent/CN111036390A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59154147A (en) * | 1983-02-18 | 1984-09-03 | Toho Kinzoku Kk | Magnetic reseparation of magnetized steel making slag particles |
| CN101513625A (en) * | 2009-03-25 | 2009-08-26 | 中钢集团马鞍山矿山研究院有限公司 | Overall utilization and treating process of iron ore mine |
| KR101638447B1 (en) * | 2015-04-03 | 2016-07-13 | 한국지질자원연구원 | Method for producting iron concentrate as sources of direct reduced iron |
| CN107029871A (en) * | 2017-04-24 | 2017-08-11 | 马钢(集团)控股有限公司 | A kind of beneficiation method of magnetic composite ore |
| CN107552221A (en) * | 2017-09-06 | 2018-01-09 | 安徽马钢工程技术集团有限公司 | A kind of chromium depleted zone coarse grain wet type pre-selecting tailings discharging technique and system |
| CN209156025U (en) * | 2018-11-14 | 2019-07-26 | 临沂会宝岭铁矿有限公司 | Wet type pre-selecting system before a kind of iron ore low-grade ore stone mill |
| CN110064507A (en) * | 2019-04-26 | 2019-07-30 | 内蒙古大中矿业股份有限公司 | A kind of ore-dressing technique of chromium depleted zone recycling and reusing |
Non-Patent Citations (1)
| Title |
|---|
| 陈少学 等: "某铁矿磨前粗粒湿式预选工艺改造实践", 《现代矿业》 * |
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