CN112517225A - Mineral processing technology for grading titanium fine powder and producing high-titanium furnace protection pellets by utilizing titanium-containing iron separation tailings - Google Patents
Mineral processing technology for grading titanium fine powder and producing high-titanium furnace protection pellets by utilizing titanium-containing iron separation tailings Download PDFInfo
- Publication number
- CN112517225A CN112517225A CN202011166806.XA CN202011166806A CN112517225A CN 112517225 A CN112517225 A CN 112517225A CN 202011166806 A CN202011166806 A CN 202011166806A CN 112517225 A CN112517225 A CN 112517225A
- Authority
- CN
- China
- Prior art keywords
- titanium
- tailings
- produced
- pellets
- grading
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000010936 titanium Substances 0.000 title claims abstract description 113
- 229910052719 titanium Inorganic materials 0.000 title claims abstract description 113
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 104
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 title claims abstract description 79
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 52
- 239000008188 pellet Substances 0.000 title claims abstract description 38
- 239000000843 powder Substances 0.000 title claims abstract description 29
- 229910052500 inorganic mineral Inorganic materials 0.000 title claims abstract description 21
- 239000011707 mineral Substances 0.000 title claims abstract description 21
- 238000005516 engineering process Methods 0.000 title claims abstract description 15
- 238000000926 separation method Methods 0.000 title claims description 14
- 239000012141 concentrate Substances 0.000 claims abstract description 49
- 238000000034 method Methods 0.000 claims abstract description 16
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 40
- 239000002562 thickening agent Substances 0.000 claims description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 22
- YDZQQRWRVYGNER-UHFFFAOYSA-N iron;titanium;trihydrate Chemical compound O.O.O.[Ti].[Fe] YDZQQRWRVYGNER-UHFFFAOYSA-N 0.000 claims description 19
- 238000010408 sweeping Methods 0.000 claims description 17
- 230000005389 magnetism Effects 0.000 claims description 12
- 238000002156 mixing Methods 0.000 claims description 10
- 238000001035 drying Methods 0.000 claims description 9
- 239000006148 magnetic separator Substances 0.000 claims description 9
- 230000018044 dehydration Effects 0.000 claims description 7
- 238000006297 dehydration reaction Methods 0.000 claims description 7
- 238000003825 pressing Methods 0.000 claims description 7
- 238000000498 ball milling Methods 0.000 claims description 6
- 239000011230 binding agent Substances 0.000 claims description 6
- 229910000278 bentonite Inorganic materials 0.000 claims description 5
- 239000000440 bentonite Substances 0.000 claims description 5
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 5
- 235000019353 potassium silicate Nutrition 0.000 claims description 5
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 3
- 238000005453 pelletization Methods 0.000 claims description 3
- 238000007605 air drying Methods 0.000 claims 1
- 238000011084 recovery Methods 0.000 abstract description 10
- 239000011362 coarse particle Substances 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 239000010419 fine particle Substances 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000004064 recycling Methods 0.000 abstract description 2
- 239000002699 waste material Substances 0.000 abstract description 2
- 238000000227 grinding Methods 0.000 description 4
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010612 desalination reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000007943 implant Substances 0.000 description 1
- 229910001234 light alloy Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 230000000399 orthopedic effect Effects 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- 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
-
- 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
-
- 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
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention belongs to the technical field of tailings recycling, and discloses a mineral processing technology for grading and sorting titanium fine powder and producing high-titanium furnace protection pellets by utilizing titanium-containing iron tailings, wherein the titanium-containing iron tailings are subjected to grading treatment, so that the coarse and fine particle grading processes are synchronously treated, and the effect of discarding tailings in advance is achieved, so that the resources of the titanium-containing iron tailings can be fully utilized, and titanium concentrate and the high-titanium furnace protection pellets are produced; the invention has high recovery and utilization rate, avoids resource waste and has low production cost.
Description
Technical Field
The invention belongs to the technical field of tailing recycling, relates to a beneficiation process, and particularly relates to a beneficiation process for grading and sorting titanium fine powder and producing high-titanium furnace protection pellets by utilizing titanium-containing iron tailings.
Background
The metal titanium has many excellent characteristics of light weight, high strength and good ductility, and has the highest strength-to-weight ratio; titanium can be alloyed with other elements such as iron, aluminum, vanadium or molybdenum to produce high-strength light alloys, which are widely used in various fields, including aerospace (jet engines, missiles and spacecraft), military, industrial procedures (chemical and petroleum products, seawater desalination and papermaking), automobiles, agricultural food, medicine (artificial limbs, orthopedic implants and dental instruments and fillings), kitchen utensils and sporting goods, jewelry, mobile phones and the like.
The raw materials for preparing the metallic titanium mainly comprise rutile and ilmenite, wherein the content of TiO2 of the rutile is more than 96 percent, but with the daily increase and decrease of the price and the reserve of natural rutile, all countries tend to prepare titanium-rich materials from the ilmenite, while the reserve of rutile in China is very low, but the reserve of the ilmenite is in the forefront of the world, so that how to more efficiently utilize the ilmenite becomes an important subject of the titanium metal industry in China.
Disclosure of Invention
The invention aims to provide a mineral processing technology for grading and sorting titanium fine powder and producing high-titanium furnace protecting pellets by utilizing titanium-containing iron tailings with high recovery rate, resource waste avoidance and low production cost.
In order to achieve the purpose, the invention adopts the following technical scheme: a mineral processing technology for grading titanium fine powder and producing high-titanium furnace protection pellets by utilizing titanium-containing iron separation tailings comprises the following steps:
(1) carrying out grading operation on the iron ore tailings serving as raw ore treatment to produce a coarse fraction and a fine fraction;
(2) feeding the fine fraction part produced in the step (1) into a strong magnetic IV to recover fine fraction ilmenite and produce tailings;
(3) after ball milling operation is carried out on the coarse fraction produced in the step (1), mixing the coarse fraction with fine fraction ilmenite produced by strong magnetism IV, and performing weak magnetism operation as ore feeding;
(4) iron ore concentrate is produced through weak magnetic operation, and weak magnetic tailings produced through weak magnetic operation are fed into strong magnetic operation I;
(5) performing strong magnetic operation II and III on the concentrate produced in the strong magnetic operation I in the step (4) to produce final titanium concentrate, performing one-time magnetic sweeping operation on the tailings produced in the strong magnetic operation I to produce scavenged concentrate and scavenged tailings, and combining the scavenged tailings and the tailings produced in the strong magnetic operation IV to obtain final tailings;
(6) iron ore concentrate produced by weak magnetic operation, tailings produced by strong magnetic operation II, tailings produced by strong magnetic operation III and concentrate produced by magnetic sweeping operation enter a thickener for concentration operation so as to remove redundant water;
(7) and (3) allowing the underflow of the thickener to enter a filter press for dehydration, airing the water content of the ore powder subjected to filter pressing, adding a binder for mixing after the water content is proper, and performing pelletizing, drying, roasting and cooling to obtain the high-titanium furnace protecting pellet.
Preferably, the titanium-containing iron ore dressing tailing grading equipment adopted in the grading operation in the step (1) is one of a vibrating screen and a hydrocyclone.
Preferably, the classification granularity of the classification operation in the step (1) is 120 meshes to 200 meshes.
Preferably, the mill discharge granularity of the ball milling operation in the step (3) is 70-95% of-200 meshes.
Preferably, the field intensity of the magnetic separator for the weak magnetic operation in the step (4) is 0.08-0.15T.
Preferably, the field intensity of the magnetic separator in the step (5) in the strong magnetic operation I, the strong magnetic operation IV and the magnetic sweeping operation is 0.8-1.2T, and the field intensity of the magnetic separator in the step (5) in the strong magnetic operation II and the strong magnetic operation III is 0.6-1.0T.
Preferably, the thickener in the step (6) adopts one of an inclined plate thickener and a high-efficiency thickener.
Preferably, the water content of the produced mineral powder after airing in the step (7) is 6-8%; and (4) in the step (7), the binder is one of bentonite and water glass.
Preferably, the drying equipment adopted in the step (7) is a rotary kiln, and the drying temperature is 150-; in the step (7), a belt type roasting machine is adopted for roasting, the roasting temperature is 1200-1300 ℃, and the roasting time is 30-60 min.
Preferably, the content of TiO2 in the high-titanium furnace protecting pellets produced in the step (7) is 10-25%.
Compared with the prior art, the invention has the following beneficial effects: the method adopts the classification treatment of the titanium-containing iron tailings, achieves the synchronous treatment of coarse and fine particle classification flows, and achieves the effect of discarding tailings in advance, thereby being capable of fully utilizing the resources of the titanium-containing iron tailings, producing ilmenite concentrate with TiO2 grade of more than 46 percent and high-titanium furnace protecting pellets, and simultaneously producing the high-titanium furnace protecting pellets with TiO2 grade of 10 to 25 percent from middlings with higher titanium content.
Drawings
FIG. 1 is a process flow diagram of the present invention.
Detailed Description
Example 1
A mineral processing technology for grading and sorting titanium fine powder and producing high-titanium furnace protection pellets by utilizing titanium-containing iron separation tailings, a process flow chart of which is shown in figure 1, comprises the following steps:
(1) carrying out grading operation on the iron ore tailings serving as raw ore treatment to produce a coarse fraction and a fine fraction; wherein the titanium-containing iron ore tailings classification equipment adopted in the classification operation is one of a vibrating screen and a hydrocyclone, and the classification granularity of the classification operation is 120-200 meshes;
(2) feeding the fine fraction part produced in the step (1) into a strong magnetic IV to recover fine fraction ilmenite and produce tailings;
(3) after the coarse fraction produced in the step (1) is subjected to ball milling operation, wherein the ore discharge granularity of a mill in the ball milling operation is 70-95% of-200 meshes, and the coarse fraction is mixed with fine fraction ilmenite produced by strong magnetism IV and used as ore feeding to enter weak magnetism operation;
(4) the field intensity of a magnetic separator in the weak magnetic operation is 0.08-0.15T, and weak magnetic tailings produced in the weak magnetic operation are fed into a strong magnetic operation I;
(5) performing strong magnetic operation II and III on the concentrate produced in the strong magnetic operation I in the step (4) to produce final titanium concentrate, performing one-time magnetic sweeping operation on the tailings produced in the strong magnetic operation I to produce scavenged concentrate and scavenged tailings, and combining the scavenged tailings and the tailings produced in the strong magnetic operation IV to obtain final tailings; the field intensity of the magnetic separator in the strong magnetic operation I, the strong magnetic operation IV and the magnetic sweeping operation is 0.8-1.2T, and the field intensity of the magnetic separator in the strong magnetic operation II and the strong magnetic operation III is 0.6-1.0T;
(6) iron ore concentrate produced by weak magnetic operation, tailings produced by strong magnetic operation II, tailings produced by strong magnetic operation III and concentrate produced by magnetic sweeping enter a thickener for concentration operation to remove redundant moisture, wherein the thickener adopts one of an inclined plate thickener and a high-efficiency thickener;
(7) the underflow of the thickener enters a filter press for dehydration, the water content of the ore powder after filter pressing can be dried by airing, the water content of the produced ore powder after airing is 6-8%, and a binder is added and mixed after the water content is proper, wherein the binder is one of bentonite and water glass, and the high-titanium furnace protecting pellets are produced after pelletizing, drying, roasting and cooling; wherein the drying equipment is a rotary kiln, the drying temperature is 150-300 ℃, the roasting temperature is 1200-1300 ℃, the roasting time is 30-60min, and the TiO2 content in the finally produced high-titanium furnace protecting pellet is 10-25%.
Example 2
A mineral processing technology for grading and sorting titanium fine powder and producing high-titanium furnace protection pellets by utilizing titanium-containing iron separation tailings, a process flow chart of which is shown in figure 1, comprises the following steps:
(1) taking iron ore tailings of a dressing plant as the raw ore to be treated, and carrying out classification operation, wherein the classification granularity is 120 meshes, so as to produce a coarse fraction and a fine fraction;
(2) feeding the fine fraction part into a strong magnet IV with the field intensity of 1.1T to recover fine fraction ilmenite and produce tailings;
(3) grinding the coarse fraction after the grading operation to 80 percent of minus 200 meshes by a ball mill, mixing the coarse fraction with fine ilmenite produced by strong magnetism IV, and performing weak magnetism operation as ore feeding;
(4) the field intensity of the iron ore concentrate produced by the weak magnetic operation is 0.10T, so that the influence of magnetite on the subsequent titanium selecting operation is avoided, and the weak magnetic tailings are fed into the strong magnetic operation I;
(5) performing strong magnetic operation I (the field intensity is 1.1T), performing strong magnetic operation II (the field intensity is 1.0T) and III on the produced concentrate to produce final titanium concentrate (the field intensity is 0.8T), performing one-time magnetic sweeping operation on tailings of the strong magnetic operation I (the field intensity is 1.2T) to produce scavenged concentrate and scavenged tailings, and combining the scavenged tailings and the tailings produced by the strong magnetic operation IV to obtain final tailings;
(6) iron ore concentrate produced by weak magnetic operation, tailings produced by strong magnetic operation II, tailings produced by strong magnetic operation III and ore concentrate produced by magnetic sweeping enter a thickener for concentration operation so as to remove redundant water;
(7) the underflow of a thickener enters a filter press for dehydration, the water content of the ore powder produced after filter pressing is further reduced by airing and the like, bentonite with the mass fraction of 2 percent is added and mixed when the water content is 7 percent, and the mixture is pelletized, dried and roasted at the roasting temperature of 1200 ℃ for 60min and cooled to produce high-titanium furnace protecting pellets; in this embodiment, under the condition that the raw ore (titanium-containing iron tailings) is 8.7% in TiO2 grade, titanium concentrate with a TiO2 grade of 46.7% and a recovery rate of 26.73% and high titanium furnace protecting pellets with a TiO2 grade of 15.2% and a recovery rate of 48.72% can be obtained respectively.
Example 3
A mineral processing technology for grading and sorting titanium fine powder and producing high-titanium furnace protection pellets by utilizing titanium-containing iron separation tailings, a process flow chart of which is shown in figure 1, comprises the following steps:
(1) taking tailings of a dressing plant as the raw ore to be treated, performing classification operation, wherein the classification granularity is 150 meshes, and producing a coarse fraction and a fine fraction;
(2) feeding the fine fraction part into a strong magnet IV with the field intensity of 1.2T to recover fine fraction ilmenite and produce tailings;
(3) grinding the coarse fraction after the grading operation to 85 percent of-200 meshes by a ball mill, mixing the coarse fraction with fine ilmenite produced by strong magnetism IV, and performing weak magnetism operation as ore feeding;
(4) the field intensity of the iron ore concentrate produced by the weak magnetic operation is 0.12T, so that the influence of magnetite on the subsequent titanium selecting operation is avoided, and the weak magnetic tailings are fed into the strong magnetic operation I;
(5) performing strong magnetic operation I (the field intensity is 1.2T), performing strong magnetic operation II (the field intensity is 1.0T) and III on the produced concentrate to produce final titanium concentrate (the field intensity is 0.7T), performing one-time magnetic sweeping operation on tailings of the strong magnetic operation I (the field intensity is 1.2T) to produce scavenged concentrate and scavenged tailings, and combining the scavenged tailings and the tailings produced by the strong magnetic operation IV to obtain final tailings;
(6) iron ore concentrate produced by weak magnetic operation, tailings produced by strong magnetic operation II, tailings produced by strong magnetic operation III and concentrate produced by magnetic sweeping operation enter a thickener for concentration operation so as to remove redundant water;
(7) the underflow of a thickener enters a filter press for dehydration, the water content of the ore powder produced after filter pressing is further reduced by airing and the like, when the water content is 8 percent, water glass with the mass fraction of 2 percent is added for mixing, and the mixture is pelletized, dried and roasted at the roasting temperature of 1250 ℃ for 45min, and cooled to produce high-titanium furnace protecting pellets; in this example, under the condition that the grade of raw ore (titanium-containing iron tailings) TiO2 is 10.1%, titanium concentrate with grade of TiO2 of 47.3% and recovery rate of 28.24% and high titanium furnace protecting pellet with grade of TiO2 of 18.7% and recovery rate of 42.79% can be obtained respectively.
Example 4
A mineral processing technology for grading and sorting titanium fine powder and producing high-titanium furnace protection pellets by utilizing titanium-containing iron separation tailings, a process flow chart of which is shown in figure 1, comprises the following steps:
(1) taking iron tailings of a dressing plant as the raw ore to be treated, carrying out grading operation, wherein the grading granularity is 200 meshes, and producing a coarse fraction and a fine fraction;
(2) feeding the fine fraction part into a strong magnet IV with the field intensity of 1.2T to recover fine fraction ilmenite and produce tailings;
(3) grinding the coarse fraction after the grading operation to 90 percent of minus 200 meshes by a ball mill, mixing the coarse fraction with fine ilmenite produced by strong magnetism IV, and performing weak magnetism operation as ore feeding;
(4) the field intensity of the iron ore concentrate produced by the weak magnetic operation is 0.08T, so that the influence of magnetite on the subsequent titanium selecting operation is avoided, and the weak magnetic tailings are fed into the strong magnetic operation I;
(5) performing strong magnetic operation I (the field intensity is 1.2T), performing strong magnetic operation II (the field intensity is 0.9T) and strong magnetic operation III on the produced concentrate to produce final titanium concentrate (the field intensity is 0.8T), performing one-time magnetic sweeping operation on the tailings of the strong magnetic operation I (the field intensity is 1.2T) to produce scavenged concentrate and scavenged tailings, and combining the scavenged tailings and the tailings produced by the strong magnetic operation IV to obtain final tailings;
(6) iron ore concentrate produced by weak magnetic operation, tailings produced by strong magnetic operation II, tailings produced by strong magnetic operation III and concentrate produced by magnetic sweeping operation enter a thickener for concentration operation so as to remove redundant water;
(7) the underflow of a thickener enters a filter press for dehydration, the water content of the ore powder produced after filter pressing is further reduced by airing and the like, 3 mass percent of bentonite is added and mixed when the water content is 7.5 percent, and the mixture is pelletized, dried and roasted at 1300 ℃ for 35min, and cooled to produce high-titanium furnace protecting pellets; in this example, under the condition that the grade of raw ore (titanium-containing iron tailings) TiO2 is 6.9%, titanium concentrate with grade of TiO2 of 46.1% and recovery rate of 23.61% and high titanium furnace protecting pellets with grade of TiO2 of 16.8% and recovery rate of 44.24% can be obtained respectively.
Example 5
A mineral processing technology for grading and sorting titanium fine powder and producing high-titanium furnace protection pellets by utilizing titanium-containing iron separation tailings, a process flow chart of which is shown in figure 1, comprises the following steps:
(1) taking the iron ore tailings as the raw ore to be treated, and performing grading operation, wherein the grading granularity is 160 meshes, so as to produce a coarse fraction and a fine fraction;
(2) feeding the fine fraction part into a strong magnet IV with the field intensity of 1.2T to recover fine fraction ilmenite and produce tailings;
(3) grinding the coarse fraction after the grading operation to 70 percent of minus 200 meshes by a ball mill, mixing the coarse fraction with fine ilmenite produced by the strong magnetic operation IV, and performing weak magnetic operation as ore feeding;
(4) the field intensity of the iron ore concentrate produced by the weak magnetic operation is 0.06T, so that the influence of magnetite on the subsequent titanium selecting operation is avoided, and the weak magnetic tailings are fed into a strong magnetic operation I;
(5) performing strong magnetic operation I (the field intensity is 0.9T), performing strong magnetic operation II (the field intensity is 0.8T) and III on the produced concentrate to produce final titanium concentrate (the field intensity is 0.6T), performing one-time magnetic sweeping operation on tailings of the strong magnetic operation I (the field intensity is 1.2T) to produce scavenged concentrate and scavenged tailings, and combining the scavenged tailings and the tailings produced by the strong magnetic operation IV to obtain final tailings;
(6) iron ore concentrate produced by weak magnetic operation, tailings produced by strong magnetic operation II, tailings produced by strong magnetic operation III and concentrate produced by magnetic sweeping operation enter a thickener for concentration operation so as to remove redundant water;
(7) the underflow of a thickener enters a filter press for dehydration, the water content of the ore powder produced after filter pressing is further reduced by airing and the like, when the water content is 6 percent, water glass with the mass fraction of 3 percent is added for mixing, and the mixture is pelletized, dried and roasted at the roasting temperature of 1200 ℃ for 50min, and cooled to produce high-titanium furnace protecting pellets; in the embodiment, under the condition that the grade of raw ore (titanium-containing iron dressing tailings) TiO2 is 12.4%, titanium concentrate with grade of TiO2 of 48.9% and recovery rate of 27.59% and high titanium furnace protecting pellets with grade of TiO2 of 21.4% and recovery rate of 44.85% can be obtained respectively.
Claims (10)
1. A mineral processing technology for grading titanium fine powder and producing high-titanium furnace protection pellets by utilizing titanium-containing iron separation tailings is characterized by comprising the following steps:
(1) carrying out grading operation on the iron ore tailings serving as raw ore treatment to produce a coarse fraction and a fine fraction;
(2) feeding the fine fraction part produced in the step (1) into a strong magnetic IV to recover fine fraction ilmenite and produce tailings;
(3) after ball milling operation is carried out on the coarse fraction produced in the step (1), mixing the coarse fraction with fine fraction ilmenite produced by strong magnetism IV, and performing weak magnetism operation as ore feeding;
(4) weak magnetic operation is carried out to produce iron ore concentrate, and weak magnetic tailings are fed into strong magnetic operation I;
(5) performing strong magnetic operation II and III on the concentrate produced in the strong magnetic operation I in the step (4) to produce final titanium concentrate, performing one-time magnetic sweeping operation on the tailings produced in the strong magnetic operation I to produce scavenged concentrate and scavenged tailings, and combining the scavenged tailings and the tailings produced in the strong magnetic operation IV to obtain final tailings;
(6) iron ore concentrate produced by weak magnetic operation, tailings produced by strong magnetic operation II, tailings produced by strong magnetic operation III and concentrate produced by magnetic sweeping operation enter a thickener for concentration operation so as to remove redundant water;
(7) and (3) allowing the underflow of the thickener to enter a filter press for dehydration, airing the water content of the ore powder subjected to filter pressing, adding a binder for mixing after the water content is proper, and performing pelletizing, drying, roasting and cooling to obtain the high-titanium furnace protecting pellet.
2. The mineral processing technology for separating titanium concentrate and producing high-titanium furnace protecting pellets by utilizing the titanium-containing iron separation tailings in the claim 1, wherein the titanium-containing iron separation tailings used in the classification operation in the step (1) is one of a vibrating screen and a hydrocyclone.
3. The mineral processing technology for separating titanium fine powder and producing high-titanium furnace protecting pellets by utilizing the titanium-containing iron separation tailings as claimed in claim 1, wherein the classification granularity of the classification operation in the step (1) is 120-200 meshes.
4. The mineral processing technology for grading and sorting titanium fine powder and producing high-titanium furnace protecting pellets by utilizing the titanium-containing iron tailings, as claimed in claim 1, is characterized in that the ore discharge granularity of a mill in the ball milling operation in the step (3) is 70% -95% of-200 meshes.
5. The mineral processing process for grading titanium fine powder and producing high-titanium furnace protecting pellets by utilizing the titanium-containing iron separation tailings as claimed in claim 1, wherein the field intensity of the magnetic separator in the weak magnetic operation in the step (4) is 0.08-0.15T.
6. The mineral processing technology for grading and separating titanium fine powder and producing high-titanium furnace protecting pellets by utilizing the titanium-containing iron separation tailings, which is disclosed by claim 1, is characterized in that the field intensity of the magnetic separator in the step (5) in the strong magnetic operation I, the strong magnetic operation IV and the magnetic sweeping operation is 0.8-1.2T, and the field intensity of the magnetic separator in the step (5) in the strong magnetic operation II and the strong magnetic operation III is 0.6-1.0T.
7. The mineral processing process for grading and sorting titanium concentrate and producing high-titanium furnace-protecting pellets by utilizing the titanium-containing iron tailings, according to claim 1, is characterized in that the thickener in the step (6) adopts one of an inclined plate thickener and a high-efficiency thickener.
8. The mineral processing process for grading and sorting titanium fine powder and producing high-titanium furnace protecting pellets by utilizing the titanium-containing iron tailings, according to claim 1, is characterized in that the moisture content of the produced ore powder after air-drying in the step (7) is 6% -8%; and (4) in the step (7), the binder is one of bentonite and water glass.
9. The mineral processing process for grading and sorting titanium fine powder and producing high-titanium furnace protecting pellets by utilizing the titanium-containing iron tailings as claimed in claim 1, wherein the drying equipment adopted in the step (7) is a rotary kiln, and the drying temperature is 150-300 ℃; in the step (7), a belt type roasting machine is adopted for roasting, the roasting temperature is 1200-1300 ℃, and the roasting time is 30-60 min.
10. The mineral processing process for grading and sorting titanium fine powder and producing high-titanium furnace protecting pellets by utilizing the titanium-containing iron tailings, according to claim 1, is characterized in that the content of TiO2 in the high-titanium furnace protecting pellets produced in the step (7) is 10% -25%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011166806.XA CN112517225A (en) | 2020-10-27 | 2020-10-27 | Mineral processing technology for grading titanium fine powder and producing high-titanium furnace protection pellets by utilizing titanium-containing iron separation tailings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011166806.XA CN112517225A (en) | 2020-10-27 | 2020-10-27 | Mineral processing technology for grading titanium fine powder and producing high-titanium furnace protection pellets by utilizing titanium-containing iron separation tailings |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112517225A true CN112517225A (en) | 2021-03-19 |
Family
ID=74978974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011166806.XA Pending CN112517225A (en) | 2020-10-27 | 2020-10-27 | Mineral processing technology for grading titanium fine powder and producing high-titanium furnace protection pellets by utilizing titanium-containing iron separation tailings |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112517225A (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NZ239532A (en) * | 1990-08-30 | 1992-08-26 | Austpac Gold Nl | Separation of ilmenite from raw sand or mineral concentrates including separation by density, magnetic separation and a fluidised bed roast |
| RU94041454A (en) * | 1994-11-11 | 1997-02-27 | Г.В. Зайцев | Method of processing ilmenite-titanium-magnetite ores |
| AU2777900A (en) * | 1999-04-16 | 2000-10-19 | Thiele Kaolin Company | Process for beneficiation of mixture of mineral particles |
| CN101564706A (en) * | 2009-05-31 | 2009-10-28 | 四川安宁铁钛股份有限公司 | Coarse fraction ilmenite titanium selecting art |
| CN103041912A (en) * | 2012-12-11 | 2013-04-17 | 攀钢集团矿业有限公司 | Beneficiation method of low-grade ilmenite |
| CN103706466A (en) * | 2014-01-10 | 2014-04-09 | 重钢西昌矿业有限公司 | Beneficiation method allowing mohsiteto to be recycled from ilmenite iron beneficiation tailings |
| WO2014117300A1 (en) * | 2013-02-01 | 2014-08-07 | 河北联合大学 | Method for pre-treating ilmenite tailings after iron-beneficiation |
| CN105714109A (en) * | 2016-04-12 | 2016-06-29 | 中南大学 | Preparation method of high-strength high-titanium pellets |
| CN106179720A (en) * | 2016-09-07 | 2016-12-07 | 攀钢集团矿业有限公司 | A kind of method of iron tailings of low-grade vanadium titano recovery Pd iron mine |
| CN106391295A (en) * | 2016-10-12 | 2017-02-15 | 攀钢集团矿业有限公司 | Titanium concentration method and device for vanadium titano-magnetite |
| CN206315913U (en) * | 2016-10-12 | 2017-07-11 | 攀钢集团矿业有限公司 | A kind of vanadium titano-magnetite selects titanium device |
| CN109046760A (en) * | 2018-09-26 | 2018-12-21 | 攀钢集团攀枝花钢铁研究院有限公司 | The recoverying and utilizing method of vanadium titano-magnetite tailing |
-
2020
- 2020-10-27 CN CN202011166806.XA patent/CN112517225A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NZ239532A (en) * | 1990-08-30 | 1992-08-26 | Austpac Gold Nl | Separation of ilmenite from raw sand or mineral concentrates including separation by density, magnetic separation and a fluidised bed roast |
| RU94041454A (en) * | 1994-11-11 | 1997-02-27 | Г.В. Зайцев | Method of processing ilmenite-titanium-magnetite ores |
| AU2777900A (en) * | 1999-04-16 | 2000-10-19 | Thiele Kaolin Company | Process for beneficiation of mixture of mineral particles |
| CN101564706A (en) * | 2009-05-31 | 2009-10-28 | 四川安宁铁钛股份有限公司 | Coarse fraction ilmenite titanium selecting art |
| CN103041912A (en) * | 2012-12-11 | 2013-04-17 | 攀钢集团矿业有限公司 | Beneficiation method of low-grade ilmenite |
| WO2014117300A1 (en) * | 2013-02-01 | 2014-08-07 | 河北联合大学 | Method for pre-treating ilmenite tailings after iron-beneficiation |
| CN103706466A (en) * | 2014-01-10 | 2014-04-09 | 重钢西昌矿业有限公司 | Beneficiation method allowing mohsiteto to be recycled from ilmenite iron beneficiation tailings |
| CN105714109A (en) * | 2016-04-12 | 2016-06-29 | 中南大学 | Preparation method of high-strength high-titanium pellets |
| CN106179720A (en) * | 2016-09-07 | 2016-12-07 | 攀钢集团矿业有限公司 | A kind of method of iron tailings of low-grade vanadium titano recovery Pd iron mine |
| CN106391295A (en) * | 2016-10-12 | 2017-02-15 | 攀钢集团矿业有限公司 | Titanium concentration method and device for vanadium titano-magnetite |
| CN206315913U (en) * | 2016-10-12 | 2017-07-11 | 攀钢集团矿业有限公司 | A kind of vanadium titano-magnetite selects titanium device |
| CN109046760A (en) * | 2018-09-26 | 2018-12-21 | 攀钢集团攀枝花钢铁研究院有限公司 | The recoverying and utilizing method of vanadium titano-magnetite tailing |
Non-Patent Citations (2)
| Title |
|---|
| 孙传尧: "《选矿工程师手册第4册》", 31 March 2015, 冶金工业出版社 * |
| 龚明光: "《浮选技术问答》", 31 October 2012, 冶金工业出版社 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105289837B (en) | The technique that a kind of utilization barite fluorite mineral intergrowth prepares blanc fixe | |
| CN102181626B (en) | Beneficiation method of ilmenite | |
| CN102861664B (en) | Combined mineral processing technology of low-grade laterite type weathering titanium placers | |
| CN106587116A (en) | Method for extracting lithium carbonate and aluminum hydroxide through lepidolite and fly ash | |
| CN101791588B (en) | Sorting method of low grade vanadium titano-magnetite | |
| CN101564706B (en) | Coarse fraction ilmenite titanium selecting Technology | |
| CN102688804A (en) | Method for recycling metal iron from steel slag of converter | |
| CN105289838A (en) | Technology for recycling tailings through the process of weak magnetism concentration, roasting and regrinding magnetic separation | |
| CN105233977A (en) | Tailing recovery process adopting magnetic separation-circulating roasting-regrinding and magnetic separation method | |
| CN106311456A (en) | Method for recovering iron concentrates and non-ferrous metals by virtue of head ash of sintering machine | |
| WO2011147271A1 (en) | Process for preparing ultrafine steel slag micropowder | |
| CN103962219A (en) | Vanadium-titanium magnetite concentrate recleaning method realized through alkaline leaching, classification and combined magnetic-gravity separation | |
| CN112517225A (en) | Mineral processing technology for grading titanium fine powder and producing high-titanium furnace protection pellets by utilizing titanium-containing iron separation tailings | |
| CN108031546B (en) | A kind of method of red mud recycling iron | |
| CN104611541B (en) | A kind of method leaching rare earth in iron selection tailings | |
| CN108203764B (en) | Method for producing cobalt concentrate by using microwave-calcined zinc hydrometallurgical purified cobalt-nickel slag | |
| CN101823150B (en) | Method for preparing reduced iron powder | |
| CN110039064A (en) | A method of reproducibility iron powder is prepared using blast furnace dust smelted furnace cinder | |
| CN103468928B (en) | A kind of enriching method of manganese oxide ore | |
| CN113957268B (en) | Method for extracting lithium from laponite raw material | |
| CN109692757A (en) | A kind of tailing treatment technology and its processing system | |
| CN113926588A (en) | Method for recycling titanium resources in magnetic separation tailings | |
| CN103962222A (en) | Method for recleaning of vanadium-titanium magnetite concentrates through calcination, alkaline leaching, desliming and magnetic separation | |
| CN103182346A (en) | Novel process for improving grade of sulfate cinder iron | |
| CN102416399A (en) | Method of comprehensive recovery of iron, silver, copper and carbon from Zinc kiln slag |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210319 |
|
| RJ01 | Rejection of invention patent application after publication |