CN108889440A - The gravity treatment dielectric material and its application method separated for metallic ore with association gangue - Google Patents
The gravity treatment dielectric material and its application method separated for metallic ore with association gangue Download PDFInfo
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- CN108889440A CN108889440A CN201810498343.3A CN201810498343A CN108889440A CN 108889440 A CN108889440 A CN 108889440A CN 201810498343 A CN201810498343 A CN 201810498343A CN 108889440 A CN108889440 A CN 108889440A
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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
- B03B5/00—Washing granular, powdered or lumpy materials; Wet separating
- B03B5/28—Washing granular, powdered or lumpy materials; Wet separating by sink-float separation
- B03B5/30—Washing granular, powdered or lumpy materials; Wet separating by sink-float separation using heavy liquids or suspensions
- B03B5/44—Application of particular media therefor
- B03B5/442—Application of particular media therefor composition of heavy media
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Abstract
The gravity treatment dielectric material and its application method separated for metallic ore with association gangue, belongs to the reselection technique field of mineral.The ore dressing tail mud of hydrometallurgy red mud or clay or hematite is ground up, sieved, the magnetic separation of magnetic field strength is gradually increased through 2~6 times, the material gravity treatment containing ferromagnetic material that each time is magneticly elected again, the material that gravity treatment is presented is distributed 4~10 equal part of band, it picks out respectively, so through multiple gravity treatment, gravity treatment dielectric material of the present invention is finally obtained.When use, it first passes through test and determines in gravity treatment dielectric material and be suitble to the concrete specification used, gravitational separation equipment is added after the dielectric material is mixed with ore pulp to be selected again, three distribution bands that gravity treatment is formed are picked out respectively, as soon as obtaining metal concentrate to object progress time magnetic separation is picked out with recovering medium material respectively again.The rate of recovery that metalliferous mineral can be significantly improved enables gravity treatment to reach the rate of recovery index of flotation, to avoid pollution of the floating agent to environment, expands gravity treatment application range.
Description
Technical field
The invention belongs to the reselection technique fields of mineral, and in particular to a kind of gravity treatment separated for metallic ore with association gangue
Dielectric material and its application method
Background technique
" the united beneficiation method of screening-gravity treatment " (Patent No. ZL201310119483.2 ") is used for metallic ore and companion
It is big due to there is the contact band of two kinds of isolates, leading to pick out difficulty when the separation of raw gangue, influence the metalliferous mineral rate of recovery
Further increase
Summary of the invention
The purpose of the present invention is to overcome the shortcomings of the existing technology, provides and a kind of separates with association gangue for metallic ore
Gravity treatment dielectric material and its application method expand the application range of gravity treatment to further increase the rate of recovery of metalliferous mineral
When gravity treatment, during the motion, the proper motion track of any particle is decided by various particle swarms：1, this particle
Size；2, the shape of this particle；3, the density present invention of this particle prepares specific dielectric material, adds in reuse adoption process
After the material, it can enable two kinds separated object is needed to understand and separate, improve the rate of recovery of gravity treatment, expand the application range of gravity treatment, and
The dielectric material is recyclable to be reused.
Gravity treatment dielectric material of the present invention is characterized in that：With hydrometallurgy red mud or the ore dressing tail mud of clay or hematite
For raw material, it is prepared as follows and obtains：
1, raw material is roasted by the existing magnetic roasting process to iron ore, makes it have magnetism；
2, by ground 50~150 mesh of material after roasting；
3, upper step resulting material is first subjected to magnetic separation with the magnetic field strength A that Gauss value is 3500~4500, obtains the magnetic field
The material a containing ferromagnetic material isolated under intensity；
4, upper step residue is subjected to magnetic separation with the magnetic field strength B of 1.2A~1.5A again, obtains separating under the magnetic field strength
The material b containing ferromagnetic material out；
5, upper step residue is subjected to magnetic separation with the magnetic field strength of 1.2B~1.5B again, obtains isolating under the magnetic field strength
The material c containing ferromagnetic material；
6,2~6 magnetic separation are carried out by above-mentioned rule, last residue, which is abandoned, not to be had to, and the material containing ferromagnetic material is obtained
Expect a, b, c, d etc.；
7, material a, b, c, d etc. are subjected to gravity treatment with shaking table or chute respectively, the material that each gravity treatment is presented is distributed band 4
~10 equal parts, pick out respectively, arrange by the direction at tailing end to the concentrate end of equipment, obtain material a1, a2, a3, a4....；
b1,b2,b3,b4....；c1,c2,c3,c4.....；
8, upper step resulting materials are subjected to gravity treatment with shaking table or chute respectively again, the material that each gravity treatment is presented is distributed
4~10 equal part of band, picks out respectively, by equipment tailing end to concentrate end direction arrange, obtain material a11, a12,
A13....., a21, a22, a23...., a31, a32, a33....；b11,b12,b13....；c11,c12,c13,.....；
9,3~6 gravity treatments are carried out by the above rule, finally obtain the material of multiple concrete specifications, by a1...1,
A1...2, a1...3....., a2...1, a2...2, a2...3...., a3...1, a3...2, a3...3 ...；b1...1,
B1...2, b1...3 ..., b2...1, b2...2, b2...3 ... the sequence of arranges, i.e. a1...1 be most before, just obtain
Gravity treatment dielectric material of the present invention
Gravity treatment dielectric material of the present invention is for the application method of metallic ore and association gangue Gravity separation：
1, using the gravitational separation equipment in addition to jigging machine；
2, either polymetallic ore or monometallic mine, all only determine a kind of isolated metallic ore；
3, it first passes through test and determines in gravity treatment dielectric material and be suitble to a kind of concrete specification used：Mineral to gravity treatment are tried
Sample is made into ore pulp, and the gravity treatment dielectric material of any one concrete specification is added into the ore pulp, and the weight that dielectric material is added is
The 3%~10% of ore pulp weight；It puts the not standby progress gravity treatment of gravity treatment into, obtains metalliferous mineral band, gravity treatment medium belt, gangue band, it will
Material in gangue band picks out, and measures the weight percent content of the metal in the metallic ore to be separated in gangue band,
For copper, lead, zinc, tin, tungsten, molybdenum, titanium, mercury, nickel, chromium, antimony, tantalum, niobium, bismuth, strontium, lithium, rubidium, if measurement result is
0.006%~0.2%, then the dielectric material of the specification is suitble to use,
For iron, barium, if measurement result is 5%~20%, the dielectric material of the specification is suitble to use,
Below for metalliferous mineral band, gravity treatment medium belt, gangue band tandem, it is specified that with the concentrate end of gravitational separation equipment
Before direction is, after tailing extreme direction is,
When metalliferous mineral band is before gangue band：
(1) if measurement result is greater than the upper limit of the above respective range, any being arranged in front of having tried dielectric material is taken
The dielectric material of kind specification, is tested again by above procedure, can be carried out repeatedly, until the content of measurement meets the above respective range,
Then the dielectric material of specification used is exactly to be suitble to use at this time；
(2) if measurement result is less than the lower limit of the above respective range, any being arranged in after having tried dielectric material is taken
The dielectric material of kind specification, is tested again by above procedure, can be carried out repeatedly, until the content of measurement meets the above respective range,
Then the dielectric material of specification used is exactly to be suitble to use at this time；
When metalliferous mineral band is when after gangue band：
(1) if measurement result is greater than the upper limit of the above respective range, any being arranged in after having tried dielectric material is taken
The dielectric material of kind specification, is tested again by above procedure, can be carried out repeatedly, until the content of measurement meets the above respective range,
Then the dielectric material of specification used is exactly to be suitble to use at this time；
(2) if measurement result is less than the lower limit of the above respective range, any being arranged in front of having tried dielectric material is taken
The dielectric material of kind specification, is tested again by above procedure, can be carried out repeatedly, until the content of measurement meets the above respective range,
Then the dielectric material of specification used is exactly to be suitble to use at this time；
4, gravitational separation equipment is added after mixing the suitable dielectric material used with ore pulp to be selected, the weight of dielectric material is added
It is the 1%~10% of ore pulp weight to be selected, the three distribution bands that gravity treatment is formed pick out respectively, then primary to object progress is picked out respectively
Magnetic separation just obtains metal concentrate and tailing with recovering medium material
Present invention is especially suitable for " the united beneficiation method of screening-gravity treatment " (Patent No. ZL201310119483.2)
In metallic ore separate with association gangue
The positive effect of the present invention is the gravity treatment separated for metallic ore with association gangue, can significantly improve metalliferous mineral
The rate of recovery enables gravity treatment to reach the rate of recovery index of flotation, to can avoid pollution of the floating agent to environment, has expanded gravity treatment
Application range
Specific embodiment
Embodiment 1.
With hydrometallurgy red mud raw material, the gravity treatment dielectric material of the present embodiment is prepared as follows and obtained：
1, raw material is roasted by the existing magnetic roasting process to iron ore, makes it have magnetism；
2, by ground 150 mesh of material after roasting；
3, upper step resulting material is first subjected to magnetic separation with the magnetic field strength that Gauss value is 4000, obtains lower point of the magnetic field strength
The material a containing ferromagnetic material separated out；
4, upper step residue is subjected to magnetic separation with the magnetic field strength of Gauss value 6000 again, obtains isolating under the magnetic field strength
The material b containing ferromagnetic material；
4, upper step residue is subjected to magnetic separation with the magnetic field strength of Gauss value 8000 again, obtains isolating under the magnetic field strength
The material c containing ferromagnetic material；
6, material a, b, c are subjected to gravity treatment with shaking table respectively, the material that each gravity treatment is presented is distributed 5 equal part of band, respectively
It picks out, obtains be arranged successively by tandem 15 materials：a1,a2,a3,a4,a5； b1,b2,b3,b4,b5；c1,c2,
c3,c4,c5；
7, upper step resulting materials are subjected to gravity treatment with shaking table respectively again, material distribution band 5 that each gravity treatment is presented etc.
Point, it picks out respectively, obtains be arranged successively by tandem 75 materials：a11,a12,a13, a14,a15；a21,a22,
a23,a24,a25；a31,a32,a33,a34,a35；... .., a55；B11, b12, b13 ..., b55；c11,c12,c13,
c14,c15；... .., c55；
8, upper step resulting materials are subjected to gravity treatment with shaking table respectively again, material distribution band 9 that each gravity treatment is presented etc.
Point, it picks out respectively, obtains be arranged successively by tandem 675 materials：A111, a112, a113 ..., a119, a121,
A122, a123, a124, a125 ... .., a559；B111, b112, b113 ..., b559；c111,c112,c113,c114,
c115；... .., c559；That is a111 be most before, just obtain the gravity treatment dielectric material of the present embodiment
Embodiment 2.
Gravity treatment is carried out using the resulting gravity treatment dielectric material of embodiment 1, specifically according to the following steps：
(1) the specification that test determines the dielectric material for being suitble to use is first passed through
The copper flotation tailing for being 0.5% to chrysocolla cupric therein determines that isolated metallic ore is chrysocolla
10 kilograms of copper flotation tailing are taken, is added 30 kilograms of water, 40 kilograms of ore pulp that weight percent concentration is 25% is obtained, adds 3
Kilogram b111 material puts shaking table into and carries out gravity treatment, obtains the gangue band that front and back is sequentially distributed, b111 material strips, chrysocolla band
(before the concentrate extreme direction with gravitational separation equipment is, tailing extreme direction is rear).Material in gangue band is picked out into after measured, gangue
With weight of copper degree in interior chrysocolla be 0.3%. take the b455 dielectric material after being arranged in b111 material, by with
Upper process is tested again, and after measured, weight of copper degree is that 0.25%. takes be arranged in again in chrysocolla in gangue band
B559 dielectric material after b455 material is tested again by above procedure, after measured, copper weight in chrysocolla in gangue band
It is for being suitble to use that amount degree, which is 0.09%.b559 dielectric material,
(2) actual production
Ore pulp is made in the copper flotation tailing, gravity treatment is added after the dielectric material that specification is b559 is mixed with ore pulp and shakes
Bed, the weight that b559 is added are that 10%. three distribution bands for forming gravity treatment of ore pulp weight pick out respectively, then respectively to picking out object
A magnetic separation is carried out to recycle b559 gravity treatment dielectric material, chrysocolla concentrate, gangue and reusable b559 is obtained and is situated between
Material through chemically examining, in chrysocolla concentrate obtained by the present embodiment copper content be 12.6%. as a comparison, it is floating to identical copper
Select tailing routinely after gravity separation technology gravity treatment, copper content is only 4.65%. in chrysocolla concentrate
Embodiment 3.
With raw clay, the gravity treatment dielectric material of the present embodiment is prepared as follows and obtained：
1, clay is roasted by the existing magnetic roasting process to iron ore, makes it have magnetism；
2, by ground 50 mesh of material after roasting；
3, upper step resulting material is first subjected to magnetic separation with the magnetic field strength that Gauss value is 8000, obtains lower point of the magnetic field strength
The material a containing ferromagnetic material separated out；
4, upper step residue is subjected to magnetic separation with the magnetic field strength of Gauss value 10000 again, obtains separating under the magnetic field strength
The material b containing ferromagnetic material out；
4, upper step residue is subjected to magnetic separation with the magnetic field strength of Gauss value 12000 again, obtains separating under the magnetic field strength
The material c containing ferromagnetic material out；
6, material a, b, c are subjected to gravity treatment with shaking table respectively, the material that each gravity treatment is presented is distributed 5 equal part of band, respectively
It picks out, obtains 15 materials being arranged successively by tandem：a1,a2,a3,a4, a5；b1,b2,b3,b4,b5；c1,
c2,c3,c4,c5；
7, upper step resulting materials are subjected to gravity treatment with shaking table respectively again, material distribution band 5 that each gravity treatment is presented etc.
Point, it picks out respectively, obtains be arranged successively by tandem 75 materials：A11, a12, a13, a14, a15, a21, a22,
A23, a24, a25, a31, a32, a33, a34, a35 ... .., a55；B11, b12, b13 ..., b55；c11,c12,c13,
c14,c15；... .., c55；
8, upper step resulting materials are subjected to gravity treatment with shaking table respectively again, material distribution band 9 that each gravity treatment is presented etc.
Point, obtain be arranged successively by tandem 675 materials：A111, a112, a113 ..., a119, a121, a122, a123,
A124, a125 ... .., a559；B111, b112, b113 ... ..., b559； c111,c112,c113,c114,
C115 ... .., c559；That is before a111 is arranged most, c559 is arranged finally, just obtaining the gravity treatment dielectric material of embodiment 3
Embodiment 4.
Gravity treatment is carried out using the resulting gravity treatment dielectric material of embodiment 3, specifically according to the following steps：
(1) the specification that test determines the dielectric material for being suitble to use is first passed through
The bloodstone lean ore for being 20% to grade determines that isolated metallic ore is that bloodstone takes bloodstone lean ore 10 public
Jin is added 30 kilograms of water, obtains 40 kilograms of ore pulp that weight percent concentration is 25%, adds in 3 kilograms of embodiments 3
A211 material puts shaking table into and carries out gravity treatment, obtains the bloodstone band that front and back is sequentially distributed, a211 material strips, tailing zone is (with gravity treatment
Before the concentrate extreme direction of equipment is, tailing extreme direction is rear) material in tailing zone picks out after measured by, and it is red in tailing zone
It is for being suitble to use that iron weight percent content, which is 8%. a211 dielectric materials, in iron ore
(2) actual production
Ore pulp is made in the bloodstone lean ore that grade is 20%, is added after the dielectric material that specification is a211 is mixed with ore pulp
Enter gravity table, the weight of a211 dielectric material is added and is connect respectively for the 10%. three distribution bands for forming gravity treatment of ore pulp weight
Out, then respectively a magnetic separation is carried out to recycle a211 gravity treatment dielectric material to picking out object, obtain hematite concentrate, gangue and can be again
The secondary a211 dielectric material used through chemically examining, in hematite concentrate obtained by the present embodiment iron content be 57.6%. as a comparison,
After the bloodstone lean ore of identical grade routinely gravity separation technology gravity treatment, iron content is 48% in hematite concentrate.
Claims (3)
1. a kind of gravity treatment dielectric material separated for metallic ore with association gangue, it is characterised in that with hydrometallurgy red mud or
The ore dressing tail mud of clay or hematite is raw material, is prepared as follows and obtains：
(1), raw material is roasted by the existing magnetic roasting process to iron ore, makes it have magnetism；
(2), by ground 50~150 mesh of material after roasting；
(3), upper step resulting material is first subjected to magnetic separation with the magnetic field strength A that Gauss value is 3500~4500, it is strong obtains the magnetic field
The material a containing ferromagnetic material isolated under degree；
(4), upper step residue is subjected to magnetic separation with the magnetic field strength B of 1.2A~1.5A again, obtains isolating under the magnetic field strength
The material b containing ferromagnetic material；
(5), upper step residue is subjected to magnetic separation with the magnetic field strength of 1.2B~1.5B again, obtains isolating under the magnetic field strength
Material c containing ferromagnetic material；
(6), 2~6 magnetic separation are carried out by above-mentioned rule, last residue, which is abandoned, not to be had to, and the material containing ferromagnetic material is obtained
A, b, c, d etc.；
(7), material a, b, c, d etc. are subjected to gravity treatment with shaking table or chute respectively, the material distribution band 4 that each gravity treatment is presented~
10 equal parts, pick out respectively, arrange by the direction at tailing end to the concentrate end of equipment, obtain material a1, a2, a3, a4....；b1,
b2,b3,b4....；c1,c2,c3,c4.....；
(8), upper step resulting materials are subjected to gravity treatment with shaking table or chute respectively again, the material that each gravity treatment is presented is distributed band
4~10 equal parts, pick out respectively, arrange by the direction at tailing end to the concentrate end of equipment, obtain material a11, a12, a13.....,
A21, a22, a23...., a31, a32, a33....；b11,b12,b13....；c11,c12,c13,.....；
(9), 3~6 gravity treatments are carried out by the above rule, finally obtain the material of multiple concrete specifications, by a1...1, a1...2,
A1...3....., a2...1, a2...2, a2...3...., a3...1, a3...2, a3...3 ...；b1...1,b1...2,
B1...3 ..., b2...1, b2...2, b2...3 ... the sequence of arranges, i.e. a1...1 be most before, just obtain present invention weight
Selected introductions material.
2. the application method that a kind of gravity treatment dielectric material is used for metallic ore and association gangue Gravity separation, it is characterised in that：
(1), using the gravitational separation equipment in addition to looking into the distance the machine of eliminating；
(2), either polymetallic ore or monometallic mine, all only determine a kind of isolated metallic ore；
(3), it first passes through test and determines in gravity treatment dielectric material and be suitble to a kind of concrete specification used：By the mineral sample to gravity treatment
It is made into ore pulp, the gravity treatment dielectric material of any one concrete specification is added into the ore pulp, the weight that dielectric material is added is mine
Starch the 3%~10% of weight；It puts gravitational separation equipment into and carries out gravity treatment, metalliferous mineral band, gravity treatment medium belt, gangue band are obtained, by arteries and veins
Material in stone band picks out, and measures the weight percent content of the metal in the metallic ore to be separated in gangue band,
For copper, lead, zinc, tin, tungsten, molybdenum, titanium, mercury, nickel, chromium, antimony, tantalum, niobium, bismuth, strontium, lithium, rubidium, if measurement result is
0.006%~0.2%, then the dielectric material of the specification is suitble to use,
For iron, barium, if measurement result is 5%~20%, the dielectric material of the specification is suitble to use,
Below for metalliferous mineral band, gravity treatment medium belt, gangue band tandem, it is specified that with the concentrate extreme direction of gravitational separation equipment
To be preceding, after tailing extreme direction is,
When metalliferous mineral band is before gangue band：
If (a) measurement result is greater than the upper limit of the above respective range, any rule being arranged in front of having tried dielectric material are taken
The dielectric material of lattice is tested again by above procedure, can carry out repeatedly, until measurement content meet the above respective range, then this
The dielectric material of Shi Suoyong specification is exactly to be suitble to use；
If (b) measurement result is less than the lower limit of the above respective range, any rule being arranged in after having tried dielectric material are taken
The dielectric material of lattice is tested again by above procedure, can carry out repeatedly, until measurement content meet the above respective range, then this
The dielectric material of Shi Suoyong specification is exactly to be suitble to use；
When metalliferous mineral band is when after gangue band：
If (a) measurement result is greater than the upper limit of the above respective range, any rule being arranged in after having tried dielectric material are taken
The dielectric material of lattice is tested again by above procedure, can carry out repeatedly, until measurement content meet the above respective range, then this
The dielectric material of Shi Suoyong specification is exactly to be suitble to use；
If (b) measurement result is less than the lower limit of the above respective range, any rule being arranged in front of having tried dielectric material are taken
The dielectric material of lattice is tested again by above procedure, can carry out repeatedly, until measurement content meet the above respective range, then this
The dielectric material of Shi Suoyong specification is exactly to be suitble to use；
(4), gravitational separation equipment is added after mixing the suitable dielectric material used with ore pulp to be selected, the weight that dielectric material is added is
The 1%~10% of ore pulp weight to be selected, by gravity treatment formed three distribution bands pick out respectively, then respectively to pick out object carry out a magnetic
Choosing just obtains metal concentrate and tailing with recovering medium material.
3. gravity treatment dielectric material as claimed in claim 2 is used for the application method of metallic ore and association gangue Gravity separation,
It is characterized in that：For sieve-the united beneficiation method of gravity treatment in metallic ore separated with association gangue.
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