CN109107750A - A kind of narrow rank mineral sort the production method of titanium chats - Google Patents
A kind of narrow rank mineral sort the production method of titanium chats Download PDFInfo
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- CN109107750A CN109107750A CN201810956275.0A CN201810956275A CN109107750A CN 109107750 A CN109107750 A CN 109107750A CN 201810956275 A CN201810956275 A CN 201810956275A CN 109107750 A CN109107750 A CN 109107750A
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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
Abstract
The invention discloses the production methods that a kind of narrow rank mineral sort titanium chats, the described method comprises the following steps: carrying out classifying grinding to iron selection tailings after concentration, desliming first；Then titanium means are mentioned as main by high intensity magnetic separation, gravity treatment cooperation；It recycles two sections of gravity treatments and wet type magnetic roller tailing to carry out recycling, realizes steady and continuous production titanium chats, titanium chats titanium grade >=42% of production.Entire process flow significantly reduces the power consumption of delivery pump using gravity flow mode from top to bottom；By classifying grinding, ore grinding amount and energy consumption are reduced, improves grinding efficiency；It is sorted by gravity treatment and the cooperation of strong magnetic, tailing returns to recycling mode, further improves the titanium resource rate of recovery.Present invention process process is simple, and it is reasonable to sort mode, and metal recovery rate is high, and product quality is high and grade is stablized, and can effectively increase productivity effect by reducing cost and product deep processing bring added value, realize product diversification, with good economic efficiency.
Description
Technical field
The invention belongs to technical field of beneficiation, and in particular to a kind of narrow rank mineral sort the production method of titanium chats.
Background technique
In general the titanium grade range of low-grade ilmenite concentrate is 27~30%, can be produced using only re-selection procedure, the production
Product are mainly used to produce cooled agglomerated pellet as steelmaking furnace furnace protecting agent.
High-grade ilmenite concentrate then requires titanium grade >=45%(wt), which needs the technique of high intensity magnetic separation cooperation flotation that could give birth to
It produces, is mainly used for the deep processing raw material of titanium.
And ilmenite concentrate grade >=38%(wt of particular/special requirement), fineness, sulfur grade, silicon grade many indexes require titanium
Product processes are also immature, low using the simple re-selection procedure rate of recovery, sort life using the technique of high intensity magnetic separation cooperation flotation
It produces at high cost.
Adjustment is reconfigured by the technique to high intensity magnetic separation and gravity treatment, is classified thick, fine grained in mineral using cyclone,
Thick, fine grained is separately recovered again, can effectively reduce production cost, improves comprehensive metal recovery rate, while product indices
It is able to satisfy the market demand, there is important economic benefit and social benefit.
Summary of the invention
The technical problem to be solved in the present invention is to provide the production methods that a kind of narrow rank mineral sort titanium chats.
In order to solve the above technical problems, the technical solution used in the present invention is: a kind of narrow rank mineral sort titanium chats
Production method, the production method the following steps are included:
(1) raw ore is using iron selection tailings as raw material, titaniferous grade >=4.2% in the iron selection tailings, is concentrated through vibration concentrator, desliming,
Sand setting enters hydrocyclone group and is further concentrated, ore pulp after being concentrated；
(2) high-frequency vibration sieve classification is used to ore pulp after concentration, vibrating screen uses 50 mesh screens, screen size 0.3mm, on sieve
Mineral enter ball milling fine grinding, and mineral return again to sieve classification after fine grinding, and mineral enter lower section process and sort under sieving；
(3) one sections of gravity treatment processes sieve lower mineral and enter two sections of gravity treatment processes after spiral chute sorts to obtain one section of ilmenite concentrate,
One section of gravity tailings enters Tailings System；
(4) two sections of gravity treatment processes, one section of ilmenite concentrate after spiral chute sorts to obtain two sections of ilmenite concentrates enter lower section process, two
Section gravity tailings feeds high gradient and stands the strong magnetomechanical recycling of ring, and obtained strong magnetomechanical concentrate returns to one section of gravity treatment after demagnetizer takes off magnetic
It selects again, strong magnetomechanical tailing enters Tailings System；
(5) two sections of ilmenite concentrates feed wet type magnetic roller cylinder, produce the titanium chats of titanium grade >=42%, and wet type magnetic roller cylinder sorts strong
Magnetic mineral is individually stored as a kind of product, and wet type magnetic roller tailing returns to two sections of gravity treatment recyclings after demagnetizer takes off magnetic.
In the step (1) of the present invention raw ore by oscillating mode concentrator and hydrocyclone cooperation be concentrated, desliming
Technique carries out pre-concentration, desliming process to crude ore pulp, it is ensured that inclined plate sand setting concentration >=18%, in inclined plate overflow >=37 microns of mines
Object content≤3%.
Sand setting is further concentrated using hydrocyclone after being concentrated in the step (1) of the present invention, pulp density after concentration
35~40%.
Concentration ore pulp enters high frequency shale shaker in step (2) of the present invention, and mineral enter ball mill ore grinding on sieve, under sieve
Mineral enter subsequent processing and sort, and lower mineral >=0.3mm content 0.8 is sieved in the control of ball mill mineral-feeding concentration after 65~70%, ore grinding
~1.2%.
One section of gravity treatment process in step (3) of the present invention enters two sections after spiral chute sorts to obtain ilmenite concentrate
Gravity treatment process, gravity tailings enter Tailings System, and one section of gravity treatment feed ore concentration control is 25~30%；Gravity concentrate titanium grade >=
18%, tailings grade≤2%.
Two sections of gravity treatment processes in step (4) of the present invention, one section of ilmenite concentrate are sorted by spiral chute, feed ore concentration control
System is 25~30%, two sections of concentrate titanium grade >=30% of gravity treatment.
Two sections of the level of reselection tailings differences in step (4) of the present invention, corresponding strong magnetic operation are adjusted, and obtain strong magnetic
Machine concentrate titanium grade >=12%, specific as follows:
When Ti content in two sections of gravity tailings≤4%, high gradient vertical-ring magnetic separator exciting current is 800~850A, and pulsion stroke is
26~28mm, jig frequency are 280~300R/min, and change revolving speed is 3.5R/min；
When 4% < Ti content in two sections of gravity tailings≤5%, high gradient vertical-ring magnetic separator exciting current is 850~900A, pulsation punching
Journey is 24~26mm, and jig frequency is 260~280R/min, and change revolving speed is 3.5R/min；
In two sections of gravity tailings when Ti content > 5%, high gradient vertical-ring magnetic separator exciting current is 900~950A, and pulsion stroke is
22~24mm, jig frequency are 240~260R/min, and change revolving speed is 3.5R/min.
Wet type magnetic roller cylinder head roller is sorted using 2000GS feeble field intensity magnetic separator in step (5) of the present invention, is selected
Strongly magnetic mineral, it is ensured that except strongly magnetic mineral content≤3% in mineral after iron；Full Iron grade >=35% of the strongly magnetic mineral, titanium
Grade >=20%.
Two roller of wet type magnetic roller cylinder, three rollers are respectively 8000GS, 10000GS field strength in step (5) of the present invention, are sorted
To the titanium chats of titanium grade >=42%.
In step (5) of the present invention wet type magnetic roller head roller except in ore pulp after strongly magnetic mineral titanium grade at 31~33%,
Two rollers, three rollers and groove body gap are adjusted to 6~8mm；Wet type magnetic roller head roller removes after strongly magnetic mineral titanium grade > 33% in ore pulp
When, two rollers, three rollers and groove body gap are adjusted to 3~6mm.
A kind of narrow rank mineral of the present invention sort the production method product inspection method canonical reference GB/T1706- of titanium chats
2006。
The beneficial effects of adopting the technical scheme are that the 1, present invention selects iron tail to concentration, after desliming first
Mine carries out classifying grinding, it is ensured that valuable mineral and gangue efficiently separate, and mineral grain is uniform, are more suitable for subsequent sorting work
Skill；It is returned again as mainly titanium means are proposed using two sections of gravity treatments and wet type magnetic roller tailing by high intensity magnetic separation, gravity treatment cooperation again
It receives, solves the problems, such as that fine-grained minerals recycling is difficult in gravity tailings, while avoiding and selecting titanium to use a large amount of titaniums using flotation
The higher production cost of collecting medicament bring realizes steady and continuous production titanium chats, by reducing cost and product deep processing
Bring added value can effectively increase productivity effect, realize product diversification.2, the entire process flow of the present invention use from upper and
Lower gravity flow mode, significantly reduces the power consumption of delivery pump；By classifying grinding, ore grinding amount is reduced, reduces ore grinding
Energy consumption improves grinding efficiency；It is sorted by gravity treatment and the cooperation of strong magnetic, tailing returns to recycling mode, further improves titanium money
The source rate of recovery.3, present invention process process is simple, and it is reasonable to sort mode, and metal recovery rate is high, and ilmenite concentrate product quality is high and product
Position is stablized, and can be effectively increased productivity effect by reducing cost and product deep processing bring added value, be realized product diversification,
It is with good economic efficiency.
Detailed description of the invention
Fig. 1 is selecting process schematic diagram of the present invention.
Specific embodiment
The present invention is described in further detail in the following with reference to the drawings and specific embodiments.
Embodiment 1
For raw ore using iron selection tailings as raw material, iron selection tailings technical indicator is respectively as follows: titanium grade 4.2%, >=0.037mm granule content
5.3% ,≤0.3mm mineral grain content 34.6%, strongly magnetic mineral content 15.8%.
A kind of narrow rank mineral of the present embodiment sort the production method of titanium chats the following steps are included:
(1) raw ore be concentrated by oscillating mode concentrator and hydrocyclone cooperation, the techniques such as desliming, crude ore pulp is carried out
Pre-concentration, desliming process, inclined plate sand setting concentration 18.5%, in inclined plate overflow >=37 microns of mineral contents 2.8%；Sand setting makes after concentration
It is further concentrated with hydrocyclone, pulp density 35.7% after concentration；
(2) high-frequency vibration sieve classification (vibrating screen uses 50 mesh screens, screen size 0.3mm), sieve are used to ore pulp after concentration
Upper mineral enter ball milling fine grinding, and mineral return again to sieve classification after fine grinding, and mineral enter lower section process and sort under sieving；Ball mill is given
Lower mineral >=0.3mm content 1.2% is sieved in the control of mine concentration after 66%, ore grinding；
(3) one sections of gravity treatments: it sieves lower mineral (feed ore concentration 26.3%) and sorts to obtain one section of ilmenite concentrate (titanium grade by spiral chute
18.6%) enter two sections of gravity treatment processes afterwards, one section of gravity tailings (titanium grade 1.8%) enters Tailings System；
(4) two sections of gravity treatments: one section of ilmenite concentrate (feed ore concentration 28.6%) sorts to obtain two sections of ilmenite concentrate (titanium product by spiral chute
30.5%) position enters lower section process afterwards, two sections of gravity tailings (titanium grade 3.7%) feed high gradient and stand the strong magnetomechanical recycling of ring, obtain
Strong magnetomechanical concentrate (titanium grade 12.2%) return to one section of gravity treatment after demagnetizer takes off magnetic and select again, strong magnetomechanical tailing enters tailing system
System；
High gradient vertical-ring magnetic separator exciting current 830A, pulsion stroke 27mm, jig frequency 280R/min, change revolving speed 3.5R/min；
(5) two sections of ilmenite concentrates feed wet type magnetic roller cylinder, and wet type magnetic roller cylinder head roller sorts rear strongly magnetic mineral content 2.1%, titanium grade
31.8%, two rollers, three roller separation 8mm sort final titanium chats grade 42.1%.
Embodiment 2
For raw ore using iron selection tailings as raw material, iron selection tailings technical indicator is respectively as follows: titanium grade 4.5%, >=0.037mm granule content
5.5% ,≤0.3mm mineral grain content 33.8%, strongly magnetic mineral content 16.8%.
A kind of narrow rank mineral of the present embodiment sort the production method of titanium chats the following steps are included:
(1) raw ore be concentrated by oscillating mode concentrator and hydrocyclone cooperation, the techniques such as desliming, crude ore pulp is carried out
Pre-concentration, desliming process, inclined plate sand setting concentration 19.2%, in inclined plate overflow >=37 microns of mineral contents 3.0%；Sand setting makes after concentration
It is further concentrated with hydrocyclone, pulp density 37.2% after concentration；
(2) high-frequency vibration sieve classification (vibrating screen uses 50 mesh screens, screen size 0.3mm), sieve are used to ore pulp after concentration
Upper mineral enter ball milling fine grinding, and mineral return again to sieve classification after fine grinding, and mineral enter lower section process and sort under sieving；Ball mill is given
Lower mineral >=0.3mm content 1.1% is sieved in the control of mine concentration after 68%, ore grinding；
(3) one sections of gravity treatments: it sieves lower mineral (feed ore concentration 28.1%) and sorts to obtain one section of ilmenite concentrate (titanium grade by spiral chute
18.9%) enter two sections of gravity treatment processes afterwards, one section of gravity tailings (titanium grade 1.9%) enters Tailings System；
(4) two sections of gravity treatments: one section of ilmenite concentrate (feed ore concentration 27.1%) sorts to obtain two sections of ilmenite concentrate (titanium product by spiral chute
31.2%) position enters lower section process afterwards, two sections of gravity tailings (titanium grade 4.3%) feed high gradient and stand the strong magnetomechanical recycling of ring, obtain
Strong magnetomechanical concentrate (titanium grade 12.5%) return to one section of gravity treatment after demagnetizer takes off magnetic and select again, strong magnetomechanical tailing enters tailing system
System；
High gradient vertical-ring magnetic separator exciting current 875A, pulsion stroke 25mm, jig frequency 270R/min, change revolving speed 3.5R/min；
(5) two sections of ilmenite concentrates feed wet type magnetic roller cylinder, and wet type magnetic roller cylinder head roller sorts rear strongly magnetic mineral content 1.8%, titanium grade
32.7%, two rollers, three roller separation 6mm sort final titanium chats grade 42.8%.
Embodiment 3
For raw ore using iron selection tailings as raw material, iron selection tailings technical indicator is respectively as follows: titanium grade 4.9%, >=0.037mm granule content
5.9% ,≤0.3mm mineral grain content 35.8%, strongly magnetic mineral content 16.3%.
A kind of narrow rank mineral of the present embodiment sort the production method of titanium chats the following steps are included:
(1) raw ore be concentrated by oscillating mode concentrator and hydrocyclone cooperation, the techniques such as desliming, crude ore pulp is carried out
Pre-concentration, desliming process, inclined plate sand setting concentration 19.6%, in inclined plate overflow >=37 microns of mineral contents 2.7%；Sand setting makes after concentration
It is further concentrated with hydrocyclone, pulp density 39.2% after concentration；
(2) high-frequency vibration sieve classification (vibrating screen uses 50 mesh screens, screen size 0.3mm), sieve are used to ore pulp after concentration
Upper mineral enter ball milling fine grinding, and mineral return again to sieve classification after fine grinding, and mineral enter lower section process and sort under sieving；Ball mill is given
Lower mineral >=0.3mm content 0.9% is sieved in the control of mine concentration after 67%, ore grinding；
(3) one sections of gravity treatments: it sieves lower mineral (feed ore concentration 29.3%) and sorts to obtain one section of ilmenite concentrate (titanium grade by spiral chute
19.1%) enter two sections of gravity treatment processes afterwards, one section of gravity tailings (titanium grade 2.0%) enters Tailings System；
(4) two sections of gravity treatments: one section of ilmenite concentrate (feed ore concentration 29.5%) sorts to obtain two sections of ilmenite concentrate (titanium product by spiral chute
31.5%) position enters lower section process afterwards, two sections of gravity tailings (titanium grade 5.2%) feed high gradient and stand the strong magnetomechanical recycling of ring, obtain
Strong magnetomechanical concentrate (titanium grade 12.2%) return to one section of gravity treatment after demagnetizer takes off magnetic and select again, strong magnetomechanical tailing enters tailing system
System；
High gradient vertical-ring magnetic separator exciting current 950A, pulsion stroke 23mm, jig frequency 240R/min, change revolving speed 3.5R/min；
(5) two sections of ilmenite concentrates feed wet type magnetic roller cylinder, and wet type magnetic roller cylinder head roller sorts rear strongly magnetic mineral content 1.5%, titanium grade
33.5%, two rollers, three roller separation 4mm sort final titanium chats grade 42.7%.
Embodiment 4
For raw ore using iron selection tailings as raw material, iron selection tailings technical indicator is respectively as follows: titanium grade 4.3%, >=0.037mm granule content
5.7% ,≤0.3mm mineral grain content 35.2%, strongly magnetic mineral content 16.5%.
A kind of narrow rank mineral of the present embodiment sort the production method of titanium chats the following steps are included:
(1) raw ore be concentrated by oscillating mode concentrator and hydrocyclone cooperation, the techniques such as desliming, crude ore pulp is carried out
Pre-concentration, desliming process, inclined plate sand setting concentration 18%, in inclined plate overflow >=37 microns of mineral contents 3%；Sand setting uses water after concentration
Power cyclone is further concentrated, pulp density 40% after concentration；
(2) high-frequency vibration sieve classification (vibrating screen uses 50 mesh screens, screen size 0.3mm), sieve are used to ore pulp after concentration
Upper mineral enter ball milling fine grinding, and mineral return again to sieve classification after fine grinding, and mineral enter lower section process and sort under sieving；Ball mill is given
Lower mineral >=0.3mm content 1.0% is sieved in the control of mine concentration after 65%, ore grinding；
(3) one sections of gravity treatments: it sieves lower mineral (feed ore concentration 25%) and sorts to obtain one section of ilmenite concentrate (titanium grade by spiral chute
18%) enter two sections of gravity treatment processes afterwards, one section of gravity tailings (titanium grade 1.5%) enters Tailings System；
(4) two sections of gravity treatments: feed ore concentration 30%, two sections of ilmenite concentrate titanium grades 30% of gravity treatment, two sections of gravity tailings 4%, high gradient found ring
Magnetic separator exciting current 800A, pulsion stroke 26mm, jig frequency 300R/min, change revolving speed 3.5R/min, strong magnetomechanical concentrate
12.0%；
(5) two sections of ilmenite concentrates feed wet type magnetic roller cylinder, and wet type magnetic roller cylinder head roller sorts rear strongly magnetic mineral content 3.0%, titanium grade
31%, two rollers, three roller separation 6mm sort final titanium chats grade 42.3%.
Embodiment 5
For raw ore using iron selection tailings as raw material, iron selection tailings technical indicator is respectively as follows: titanium grade 4.2%, >=0.037mm granule content
5.6% ,≤0.3mm mineral grain content 34.2%, strongly magnetic mineral content 16.1%.
A kind of narrow rank mineral of the present embodiment sort the production method of titanium chats the following steps are included:
(1) raw ore be concentrated by oscillating mode concentrator and hydrocyclone cooperation, the techniques such as desliming, crude ore pulp is carried out
Pre-concentration, desliming process, inclined plate sand setting concentration 18.2%, in inclined plate overflow >=37 microns of mineral contents 2.1%；Sand setting makes after concentration
It is further concentrated with hydrocyclone, pulp density 35% after concentration；
(2) high-frequency vibration sieve classification (vibrating screen uses 50 mesh screens, screen size 0.3mm), sieve are used to ore pulp after concentration
Upper mineral enter ball milling fine grinding, and mineral return again to sieve classification after fine grinding, and mineral enter lower section process and sort under sieving；Ball mill is given
Lower mineral >=0.3mm content 0.8% is sieved in the control of mine concentration after 70%, ore grinding；
(3) one sections of gravity treatments: it sieves lower mineral (feed ore concentration 30%) and sorts to obtain one section of ilmenite concentrate (titanium grade by spiral chute
18.5%) enter two sections of gravity treatment processes afterwards, one section of gravity tailings (titanium grade 1.2%) enters Tailings System；
(4) two sections of gravity treatments: one section of ilmenite concentrate (feed ore concentration 25%) sorts to obtain two sections of ilmenite concentrate (titanium grades by spiral chute
32%) enter lower section process afterwards, two sections of gravity tailings (titanium grade 3.2%) feed high gradient and stand the strong magnetomechanical recycling of ring, and what is obtained is strong
Magnetomechanical concentrate (titanium grade 12.3%) returns to one section of gravity treatment after demagnetizer takes off magnetic and selects again, and strong magnetomechanical tailing enters Tailings System；
High gradient vertical-ring magnetic separator exciting current 850A, pulsion stroke 28mm, jig frequency 280R/min, change revolving speed 3.5R/min；
(5) two sections of ilmenite concentrates feed wet type magnetic roller cylinder, and wet type magnetic roller cylinder head roller sorts rear strongly magnetic mineral content 2.6%, titanium grade
33%, two rollers, three roller separation 8mm sort final titanium chats grade 42.0%.
Embodiment 6
For raw ore using iron selection tailings as raw material, iron selection tailings technical indicator is respectively as follows: titanium grade 4.8%, >=0.037mm granule content
5.4% ,≤0.3mm mineral grain content 35.2%, strongly magnetic mineral content 16.5%.
A kind of narrow rank mineral of the present embodiment sort the production method of titanium chats the following steps are included:
(1) raw ore be concentrated by oscillating mode concentrator and hydrocyclone cooperation, the techniques such as desliming, crude ore pulp is carried out
Pre-concentration, desliming process, inclined plate sand setting concentration 18.4%, in inclined plate overflow >=37 microns of mineral contents 2.3%；Sand setting makes after concentration
It is further concentrated with hydrocyclone, pulp density 37% after concentration；
(2) high-frequency vibration sieve classification (vibrating screen uses 50 mesh screens, screen size 0.3mm), sieve are used to ore pulp after concentration
Upper mineral enter ball milling fine grinding, and mineral return again to sieve classification after fine grinding, and mineral enter lower section process and sort under sieving；Ball mill is given
Lower mineral >=0.3mm content 1.2% is sieved in the control of mine concentration after 68%, ore grinding；
(3) one sections of gravity treatments: it sieves lower mineral (feed ore concentration 27.3%) and sorts to obtain one section of ilmenite concentrate (titanium grade by spiral chute
18.2%) enter two sections of gravity treatment processes afterwards, one section of gravity tailings (titanium grade 1.6%) enters Tailings System；
(4) two sections of gravity treatments: one section of ilmenite concentrate (feed ore concentration 28.4%) sorts to obtain two sections of ilmenite concentrate (titanium product by spiral chute
31.6%) position enters lower section process afterwards, two sections of gravity tailings (titanium grade 5.0%) feed high gradient and stand the strong magnetomechanical recycling of ring, obtain
Strong magnetomechanical concentrate (titanium grade 12.6%) return to one section of gravity treatment after demagnetizer takes off magnetic and select again, strong magnetomechanical tailing enters tailing system
System；
High gradient vertical-ring magnetic separator exciting current 850A, pulsion stroke 24mm, jig frequency 260R/min, change revolving speed 3.5R/min；
(5) two sections of ilmenite concentrates feed wet type magnetic roller cylinder, and wet type magnetic roller cylinder head roller sorts rear strongly magnetic mineral content 2.9%, titanium grade
33.6%, two rollers, three roller separation 3mm sort final titanium chats grade 42.7%.
Embodiment 7
For raw ore using iron selection tailings as raw material, iron selection tailings technical indicator is respectively as follows: titanium grade 4.7%, >=0.037mm granule content
5.8% ,≤0.3mm mineral grain content 35.6%, strongly magnetic mineral content 16.7%.
A kind of narrow rank mineral of the present embodiment sort the production method of titanium chats the following steps are included:
(1) raw ore be concentrated by oscillating mode concentrator and hydrocyclone cooperation, the techniques such as desliming, crude ore pulp is carried out
Pre-concentration, desliming process, inclined plate sand setting concentration 18.8%, in inclined plate overflow >=37 microns of mineral contents 2.7%；Sand setting makes after concentration
It is further concentrated with hydrocyclone, pulp density 39% after concentration；
(2) high-frequency vibration sieve classification (vibrating screen uses 50 mesh screens, screen size 0.3mm), sieve are used to ore pulp after concentration
Upper mineral enter ball milling fine grinding, and mineral return again to sieve classification after fine grinding, and mineral enter lower section process and sort under sieving；Ball mill is given
Lower mineral >=0.3mm content 1.0% is sieved in the control of mine concentration after 66%, ore grinding；
(3) one sections of gravity treatments: it sieves lower mineral (feed ore concentration 29.3%) and sorts to obtain one section of ilmenite concentrate (titanium grade by spiral chute
19.2%) enter two sections of gravity treatment processes afterwards, one section of gravity tailings (titanium grade 1.3%) enters Tailings System；
(4) two sections of gravity treatments: one section of ilmenite concentrate (feed ore concentration 26.4%) sorts to obtain two sections of ilmenite concentrate (titanium product by spiral chute
30.6%) position enters lower section process afterwards, two sections of gravity tailings (titanium grade 4.7%) feed high gradient and stand the strong magnetomechanical recycling of ring, obtain
Strong magnetomechanical concentrate (titanium grade 12.4%) return to one section of gravity treatment after demagnetizer takes off magnetic and select again, strong magnetomechanical tailing enters tailing system
System；
High gradient vertical-ring magnetic separator exciting current 900A, pulsion stroke 26mm, jig frequency 280R/min, change revolving speed 3.5R/min；
(5) two sections of ilmenite concentrates feed wet type magnetic roller cylinder, and wet type magnetic roller cylinder head roller sorts rear strongly magnetic mineral content 2.1%, titanium grade
33.2%, two rollers, three roller separation 6mm sort final titanium chats grade 42.8%.
Embodiment 8
For raw ore using iron selection tailings as raw material, iron selection tailings technical indicator is respectively as follows: titanium grade 4.5%, >=0.037mm granule content
5.4% ,≤0.3mm mineral grain content 35.1%, strongly magnetic mineral content 16.0%.
A kind of narrow rank mineral of the present embodiment sort the production method of titanium chats the following steps are included:
(1) raw ore be concentrated by oscillating mode concentrator and hydrocyclone cooperation, the techniques such as desliming, crude ore pulp is carried out
Pre-concentration, desliming process, inclined plate sand setting concentration 18.5%, in inclined plate overflow >=37 microns of mineral contents 2.2%；Sand setting makes after concentration
It is further concentrated with hydrocyclone, pulp density 36% after concentration；
(2) high-frequency vibration sieve classification (vibrating screen uses 50 mesh screens, screen size 0.3mm), sieve are used to ore pulp after concentration
Upper mineral enter ball milling fine grinding, and mineral return again to sieve classification after fine grinding, and mineral enter lower section process and sort under sieving；Ball mill is given
Lower mineral >=0.3mm content 1.1% is sieved in the control of mine concentration after 67%, ore grinding；
(3) one sections of gravity treatments: it sieves lower mineral (feed ore concentration 26.4%) and sorts to obtain one section of ilmenite concentrate (titanium grade by spiral chute
18.6%) enter two sections of gravity treatment processes afterwards, one section of gravity tailings (titanium grade 1.7%) enters Tailings System；
(4) two sections of gravity treatments: one section of ilmenite concentrate (feed ore concentration 28.4%) sorts to obtain two sections of ilmenite concentrate (titanium product by spiral chute
31.6%) position enters lower section process afterwards, two sections of gravity tailings (titanium grade 5.2%) feed high gradient and stand the strong magnetomechanical recycling of ring, obtain
Strong magnetomechanical concentrate (titanium grade 12.9%) return to one section of gravity treatment after demagnetizer takes off magnetic and select again, strong magnetomechanical tailing enters tailing system
System；
High gradient vertical-ring magnetic separator exciting current 900A, pulsion stroke 22mm, jig frequency 260R/min, change revolving speed 3.5R/min；
(5) two sections of ilmenite concentrates feed wet type magnetic roller cylinder, and wet type magnetic roller cylinder head roller sorts rear strongly magnetic mineral content 2.0%, titanium grade
32.5%, two rollers, three roller separation 7mm sort final titanium chats grade 42.5%.
Embodiment 9
For raw ore using iron selection tailings as raw material, iron selection tailings technical indicator is respectively as follows: titanium grade 4.9%, >=0.037mm granule content
5.3% ,≤0.3mm mineral grain content 34.6%, strongly magnetic mineral content 16.3%.
A kind of narrow rank mineral of the present embodiment sort the production method of titanium chats the following steps are included:
(1) raw ore be concentrated by oscillating mode concentrator and hydrocyclone cooperation, the techniques such as desliming, crude ore pulp is carried out
Pre-concentration, desliming process, inclined plate sand setting concentration 18.8%, in inclined plate overflow >=37 microns of mineral contents 2.0%；Sand setting makes after concentration
It is further concentrated with hydrocyclone, pulp density 38% after concentration；
(2) high-frequency vibration sieve classification (vibrating screen uses 50 mesh screens, screen size 0.3mm), sieve are used to ore pulp after concentration
Upper mineral enter ball milling fine grinding, and mineral return again to sieve classification after fine grinding, and mineral enter lower section process and sort under sieving；Ball mill is given
Lower mineral >=0.3mm content 0.9% is sieved in the control of mine concentration after 69%, ore grinding；
(3) one sections of gravity treatments: it sieves lower mineral (feed ore concentration 25.4%) and sorts to obtain one section of ilmenite concentrate (titanium grade by spiral chute
18.2%) enter two sections of gravity treatment processes afterwards, one section of gravity tailings (titanium grade 1.5%) enters Tailings System；
(4) two sections of gravity treatments: one section of ilmenite concentrate (feed ore concentration 27.7%) sorts to obtain two sections of ilmenite concentrate (titanium product by spiral chute
30.3%) position enters lower section process afterwards, two sections of gravity tailings (titanium grade 5.1%) feed high gradient and stand the strong magnetomechanical recycling of ring, obtain
Strong magnetomechanical concentrate (titanium grade 12.7%) return to one section of gravity treatment after demagnetizer takes off magnetic and select again, strong magnetomechanical tailing enters tailing system
System；
High gradient vertical-ring magnetic separator exciting current 950A, pulsion stroke 24mm, jig frequency 240R/min, change revolving speed 3.5R/min；
(5) two sections of ilmenite concentrates feed wet type magnetic roller cylinder, and wet type magnetic roller cylinder head roller sorts rear strongly magnetic mineral content 2.8%, titanium grade
31.5%, two rollers, three roller separation 6.5mm sort final titanium chats grade 42.6%.
The above embodiments are only used to illustrate and not limit the technical solutions of the present invention, although referring to above-described embodiment to this hair
It is bright to be described in detail, those skilled in the art should understand that: still the present invention can be modified or be waited
With replacement, without departing from the spirit or scope of the invention, or any substitutions, should all cover in power of the invention
In sharp claimed range.
Claims (10)
1. the production method that a kind of narrow rank mineral sort titanium chats, which is characterized in that the production method the following steps are included:
(1) raw ore is using iron selection tailings as raw material, titaniferous grade >=4.2% in the iron selection tailings, is concentrated through vibration concentrator, desliming,
Sand setting enters hydrocyclone group and is further concentrated, ore pulp after being concentrated；
(2) high-frequency vibration sieve classification is used to ore pulp after concentration, vibrating screen uses 50 mesh screens, screen size 0.3mm, on sieve
Mineral enter ball milling fine grinding, and mineral return again to sieve classification after fine grinding, and mineral enter lower section process and sort under sieving；
(3) one sections of gravity treatment processes sieve lower mineral and enter two sections of gravity treatment processes after spiral chute sorts to obtain one section of ilmenite concentrate,
One section of gravity tailings enters Tailings System；
(4) two sections of gravity treatment processes, one section of ilmenite concentrate after spiral chute sorts to obtain two sections of ilmenite concentrates enter lower section process, two
Section gravity tailings feeds high gradient and stands the strong magnetomechanical recycling of ring, and obtained strong magnetomechanical concentrate returns to one section of gravity treatment after demagnetizer takes off magnetic
It selects again, strong magnetomechanical tailing enters Tailings System；
(5) two sections of ilmenite concentrates feed wet type magnetic roller cylinder, produce the titanium chats of titanium grade >=42%, and wet type magnetic roller cylinder sorts strong
Magnetic mineral is individually stored as a kind of product, and wet type magnetic roller tailing returns to two sections of gravity treatment recyclings after demagnetizer takes off magnetic.
2. the production method that a kind of narrow rank mineral according to claim 1 sort titanium chats, which is characterized in that the step
Suddenly in (1) raw ore be concentrated by oscillating mode concentrator and hydrocyclone cooperation, desliming process, crude ore pulp is carried out pre-
Concentration, desliming process, it is ensured that inclined plate sand setting concentration >=18%, in inclined plate overflow >=37 microns of mineral content≤3%.
3. the production method that a kind of narrow rank mineral according to claim 1 sort titanium chats, which is characterized in that the step
Suddenly sand setting is further concentrated using hydrocyclone after concentration in (1), pulp density 35~40% after concentration.
4. a kind of narrow rank mineral according to claim 1 to 3 sort the production method of titanium chats, feature
It is, concentration ore pulp enters high frequency shale shaker in the step (2), and mineral enter ball mill ore grinding on sieve, sieves lower mineral and enters
Subsequent processing sorts, and lower mineral >=0.3mm content 0.8~1.2% is sieved in the control of ball mill mineral-feeding concentration after 65~70%, ore grinding.
5. a kind of narrow rank mineral according to claim 1 to 3 sort the production method of titanium chats, feature
It is, one section of gravity treatment process in the step (3), two sections of gravity treatment processes is entered after spiral chute sorts to obtain ilmenite concentrate,
Gravity tailings enters Tailings System, and one section of gravity treatment feed ore concentration control is 25~30%；Gravity concentrate titanium grade >=18%, tailing product
Position≤2%.
6. a kind of narrow rank mineral according to claim 1 to 3 sort the production method of titanium chats, feature
Be, two sections of gravity treatment processes in the step (4), one section of ilmenite concentrate is sorted by spiral chute, feed ore concentration control 25~
30%, two sections of concentrate titanium grade >=30% of gravity treatment.
7. a kind of narrow rank mineral according to claim 1 to 3 sort the production method of titanium chats, feature
It is, two sections of the level of reselection tailings differences in the step (4), corresponding strong magnetic operation is adjusted, and obtains strong magnetomechanical concentrate titanium
Grade >=12%, specific as follows:
When Ti content in two sections of gravity tailings≤4%, high gradient vertical-ring magnetic separator exciting current is 800~850A, and pulsion stroke is
26~28mm, jig frequency are 280~300R/min, and change revolving speed is 3.5R/min；
When 4% < Ti content in two sections of gravity tailings≤5%, high gradient vertical-ring magnetic separator exciting current is 850~900A, pulsation punching
Journey is 24~26mm, and jig frequency is 260~280R/min, and change revolving speed is 3.5R/min；
In two sections of gravity tailings when Ti content > 5%, high gradient vertical-ring magnetic separator exciting current is 900~950A, and pulsion stroke is
22~24mm, jig frequency are 240~260R/min, and change revolving speed is 3.5R/min.
8. a kind of narrow rank mineral according to claim 1 to 3 sort the production method of titanium chats, feature
It is, wet type magnetic roller cylinder head roller is sorted using 2000GS feeble field intensity magnetic separator in the step (5), selects ferromagnetism mine
Object, it is ensured that except strongly magnetic mineral content≤3% in mineral after iron；Full Iron grade >=35% of the strongly magnetic mineral, titanium grade >=
20%。
9. a kind of narrow rank mineral according to claim 1 to 3 sort the production method of titanium chats, feature
It is, two roller of wet type magnetic roller cylinder, three rollers are respectively 8000GS, 10000GS field strength in the step (5), sort to obtain titanium grade
>=42% titanium chats.
10. a kind of narrow rank mineral according to claim 1 to 3 sort the production method of titanium chats, feature
It is, wet type magnetic roller head roller is except titanium grade is at 31~33% in ore pulp after strongly magnetic mineral in the step (5), two rollers, three rollers
6~8mm is adjusted to groove body gap；Wet type magnetic roller head roller removes after strongly magnetic mineral in ore pulp when titanium grade > 33%, two rollers, three
Roller and groove body gap are adjusted to 3~6mm.
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| CN110665634A (en) * | 2019-11-13 | 2020-01-10 | 攀枝花钢城集团米易瑞地矿业有限公司 | Method for selecting titanium from iron ore tailings of extremely poor exterior vanadium titano-magnetite |
| CN113953081A (en) * | 2021-09-29 | 2022-01-21 | 河钢承德钒钛新材料有限公司 | Beneficiation method for high-grade titanium concentrate |
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