CN215612303U - High vanadium titano-magnetite ore dressing system - Google Patents
High vanadium titano-magnetite ore dressing system Download PDFInfo
- Publication number
- CN215612303U CN215612303U CN202120714704.0U CN202120714704U CN215612303U CN 215612303 U CN215612303 U CN 215612303U CN 202120714704 U CN202120714704 U CN 202120714704U CN 215612303 U CN215612303 U CN 215612303U
- Authority
- CN
- China
- Prior art keywords
- communicated
- outlet
- inlet
- section
- magnetic separator
- 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.)
- Active
Links
Images
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Abstract
The utility model discloses a high vanadium titano-magnetite beneficiation system, which comprises a wet preselection machine, two sections of ball mills, two sections of magnetic separators and two sections of elutriation magnetic separators; a pre-concentration concentrate outlet of the wet pre-concentration machine is communicated with an inlet of the first section of ball mill, and an outlet of the first section of ball mill is communicated with an inlet of the spiral classifier; a sand setting outlet of the spiral classifier is communicated with an inlet of the first section of ball mill, and an overflow outlet of the spiral classifier is communicated with an inlet of the first section of magnetic separator; the concentrate outlet of the first-stage magnetic separator is communicated with the inlet of a swirler, and the overflow outlet of the swirler is communicated with the inlet of a high-frequency sieve; an oversize outlet of the high-frequency sieve and a sand setting outlet of the cyclone are both communicated with an inlet of the second-stage ball mill, and an ore discharge outlet of the second-stage ball mill is communicated with an inlet of the cyclone; and the undersize outlet of the high-frequency sieve is communicated with the inlet of the second section of magnetic separator. The method has the characteristics of high iron ore concentrate recovery rate, good quality, reliable operation, high production efficiency, good economic benefit and the like.
Description
Technical Field
The utility model relates to a beneficiation system, in particular to a beneficiation system for high-vanadium titano-magnetite.
Background
Iron is an important industrial raw material and has a wide industrial application. The main current beneficiation method is magnetic separation or flotation, but in the high vanadium titano-magnetite beneficiation, the produced iron concentrate has low grade due to the ore property and the beneficiation process, the grade of the iron concentrate is always below 60%, and the high grade iron concentrate is difficult to be separated.
In the market, the sale price of the refined iron powder is directly related to the grade of the refined iron powder, and the higher the iron grade of the refined iron powder is, the higher the sale price of the refined iron powder is, so that if the iron grade of the product of the vanadium titano-magnetite can be further improved, the economic benefit can be effectively improved, and therefore, the iron-extracting impurity-reducing mineral separation process of the high vanadium titano-magnetite is required to be developed.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a high-vanadium titano-magnetite beneficiation system with high grade of iron concentrate powder.
In order to solve the technical problem, the utility model adopts the following structure: comprises a wet preselector, two sections of ball mills, two sections of magnetic separators and two sections of elutriation magnetic separators;
a pre-concentration concentrate outlet of the wet pre-concentration machine is communicated with an inlet of the first section of ball mill, and an outlet of the first section of ball mill is communicated with an inlet of the spiral classifier; a sand setting outlet of the spiral classifier is communicated with an inlet of the first section of ball mill, and an overflow outlet of the spiral classifier is communicated with an inlet of the first section of magnetic separator;
the concentrate outlet of the first-stage magnetic separator is communicated with the inlet of a swirler, and the overflow outlet of the swirler is communicated with the inlet of a high-frequency sieve; an oversize outlet of the high-frequency sieve and a sand setting outlet of the cyclone are both communicated with an inlet of the second-stage ball mill, and an ore discharge outlet of the second-stage ball mill is communicated with an inlet of the cyclone; the undersize outlet of the high-frequency sieve is communicated with the inlet of the second section of magnetic separator;
and the concentrate outlet of the second section of magnetic separator is communicated with the inlet of the first section of elutriation magnetic separator, and the concentrate outlet of the first section of elutriation magnetic separator is communicated with the inlet of the second section of elutriation magnetic separator.
In the utility model, the tailings outlets of the first-stage elutriation magnetic separator and the second-stage elutriation magnetic separator are both communicated with an inclined plate thickener; the overflow port of the inclined plate concentrator is communicated with the flushing water inlets of the first section elutriation magnetic separator and the second section elutriation magnetic separator, and the underflow port of the inclined plate concentrator is communicated with the inlet of the second section ball mill.
The pre-concentration tailing outlet of the wet pre-concentration machine is communicated with a linear sieve; the undersize outlet of the linear sieve is communicated with the tailings reclaimer.
The tailings outlet of the first section of magnetic separator and the tailings outlet of the second section of magnetic separator are both communicated with a tailings reclaimer.
The recovery outlet of the tailings reclaimer is communicated with the inlet of the first section of magnetic separator.
Adopt the produced beneficial effect of above-mentioned technical scheme to lie in: according to the utility model, the pre-concentration concentrate and the pre-concentration tailings can be selected through the wet pre-concentration machine, the iron grade of the pre-concentration concentrate is greatly improved compared with that of fine ore, the ore feeding amount of the first-stage ball milling is reduced, the ore grinding treatment of most of waste rocks is avoided, the grinding and selecting cost can be greatly reduced, and the wet pre-concentration method has good economic benefits. Secondly, primary iron ore concentrate and tailings can be separated through a two-section type magnetic separator, the grade of the iron ore concentrate is below 60%, and the primary iron ore concentrate is separated again through elutriation and magnetic separation, so that the grade of the ore concentrate is improved; the two-section tandem elutriation magnetic separator is used for recovering high-grade iron concentrate products, the concentrated concentrate products are selected by magnetic particles in ore pulp under the combined action of magnetic force, gravity and ascending water impact force, and impurities in the ore pulp overflow to form tailings. In conclusion, the utility model carries out the primary iron concentrate recleaning by the elutriation magnetic separator, improves the concentrate grade, the average iron concentrate grade is 62.4 percent, the average recovery rate is 97.5 percent, and the conventional magnetic separation can only reach 60.5 percent through the multi-stage concentration. The utility model improves the grade of the iron ore concentrate by one grade, and simultaneously improves the tax sale price of the iron concentrate with the iron grade of 62 percent by 85 yuan per ton compared with the iron concentrate with the iron grade of 60 percent, thereby having obvious economic benefit. Therefore, the utility model is suitable for the mineral separation of the high vanadium-titanium ore, the iron concentrate has high recovery rate, good quality, reliable operation and high production efficiency, and reaches the domestic advanced level.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a schematic diagram of the system of the present invention.
In the figure: a wet type preselector 1; a first stage ball mill 2; a spiral classifier 3; a first stage magnetic separator 4; a swirler 5; a high-frequency screen 6; a second-stage ball mill 7; a second stage magnetic separator 8; a first-stage elutriation magnetic separator 9; a second-stage elutriation magnetic separator 10; a swash plate thickener 11; a disc filter 12; a linear sieve 13; a tailings reclaimer 14.
Detailed Description
As shown in fig. 1, the high vanadium titano-magnetite beneficiation system comprises a wet preselection machine, two-section ball mills, two-section magnetic separators and two-section elutriation magnetic separators; wherein the first section ball mill 2 and the spiral classifier 3 are closed, and the second section ball mill 7, the cyclone 5 and the high-frequency sieve 6 are closed. A pre-concentration concentrate outlet of the wet pre-concentration machine 1 is communicated with an inlet of a first section of ball mill 2, and an outlet of the first section of ball mill 2 is communicated with an inlet of a spiral classifier 3; and a sand setting outlet of the spiral classifier 3 is communicated with an inlet of the first ball mill 2, and an overflow outlet of the spiral classifier 3 is communicated with an inlet of the first magnetic separator 4. A pre-separation tailing outlet of the wet pre-separator 1 is communicated with a linear sieve 13; the tailings are screened out from the oversize outlet of the linear screen 13.
As shown in fig. 1, a concentrate outlet of a first-stage magnetic separator 4 of the high vanadium titano-magnetite beneficiation system is communicated with an inlet of a cyclone 5, and an overflow outlet of the cyclone 5 is communicated with an inlet of a high-frequency sieve 6; an oversize outlet of the high-frequency sieve 6 and a sand setting outlet of the cyclone 5 are both communicated with an inlet of the second-stage ball mill 7, and a discharge outlet of the second-stage ball mill 7 is communicated with an inlet of the cyclone 5; and the undersize outlet of the high-frequency sieve 6 is communicated with the inlet of the second section of magnetic separator 8.
As shown in fig. 1, in the high vanadium titano-magnetite beneficiation system, a concentrate outlet of a second-stage magnetic separator 8 is communicated with an inlet of a first-stage elutriation magnetic separator 9, and a concentrate outlet of the first-stage elutriation magnetic separator 9 is communicated with an inlet of a second-stage elutriation magnetic separator 10; the concentrate outlet of the second-stage elutriation magnetic separator 10 is communicated with a disc filter 12, and the disc filter 12 discharges the fine powder of the high-vanadium titano-magnetite. Tailings outlets of the first-stage elutriation magnetic separator 9 and the second-stage elutriation magnetic separator 10 are both communicated with an inclined plate thickener 11; an overflow port of the inclined plate concentrator 11 is communicated with flushing water inlets of the first section of elutriation magnetic separator 9 and the second section of elutriation magnetic separator 10 through a pipeline, a centrifugal pump and a variable frequency motor; the running frequency of the motor is adjusted through the electric control cabinet, and the pressure of flushing water fed into the full-automatic elutriation magnetic separator is adjusted, so that the purpose of adjusting the separation of iron ore concentrates is realized; the underflow port of the inclined plate thickener 11 is communicated with the inlet of the second-stage ball mill 8.
As shown in fig. 1, the undersize outlet of the linear sieve 13, the tailings outlet of the first-stage magnetic separator 4 and the tailings outlet of the second-stage magnetic separator 8 of the high vanadium titano-magnetite beneficiation system are all communicated with the inlet of a tailings reclaimer 14; the recycling outlet of the tailings recycling machine 14 is communicated with the inlet of the first-stage magnetic separator 4. In this way, the tailings generated by the linear sieve 13, the first-stage magnetic separator 4 and the second-stage magnetic separator 8 enter the tailings reclaimer 14, a part of tailings is reclaimed by the tailings reclaimer 14 and fed into the first-stage magnetic separator 4, and the rest of tailings are treated into comprehensive tailings.
As shown in fig. 1, the beneficiation process of the high vanadium titano-magnetite beneficiation system is as follows:
(1) the high vanadium titano-magnetite is crushed to produce fine ore with the granularity less than or equal to 8mm, and the fine ore is fully mixed with water to obtain ore pulp. Feeding the ore pulp into a wet preselector 1 for wet preselection, wherein the magnetic field intensity of the wet preselection is 4000-5000 Gs, and feeding the obtained preselection concentrate into a first-stage ball mill 2 for first-stage ball milling; feeding the discharged ore of the first-stage ball milling into a spiral classifier 3 for spiral classification; returning the settled sand subjected to spiral classification to the first-stage ball mill 2 for carrying out the first-stage ball milling again, feeding overflow subjected to spiral classification into the first-stage magnetic separator 4 for carrying out first-stage magnetic separation, wherein the magnetic field intensity of the first-stage magnetic separation is 2500-3000 Gs.
(2) Feeding the concentrate subjected to the first-stage magnetic separation into a cyclone 5 for cyclone separation; feeding the overflow of the cyclone separation into a high-frequency sieve 6 for high-frequency sieving; the oversize products with the granularity of more than 0.15mm screened by high frequency and the settled sand separated by the cyclone are fed into a second-stage ball mill 7 for second-stage ball milling, and the ore discharge of the second-stage ball milling is returned to the cyclone 5 for cyclone separation again; feeding the undersize product with the granularity of less than or equal to 0.15mm screened by the high frequency screening into a second-stage magnetic separator 8 for second-stage magnetic separation, wherein the magnetic field intensity of the second-stage magnetic separation is 2000-2500 Gs; the fineness of the concentrate obtained by the second-stage magnetic separation is-200 meshes and is controlled to be 65-70 wt%.
(3) And (3) feeding the concentrate subjected to the second-stage magnetic separation into a first-stage elutriation magnetic separator 9, performing first-stage elutriation magnetic separation under the action of magnetic force, gravity and flushing water, feeding the concentrate subjected to the first-stage elutriation magnetic separation into a second-stage elutriation magnetic separator 10 for second-stage elutriation magnetic separation, and feeding the concentrate subjected to the second-stage elutriation magnetic separation into a disc filter 12 for dehydration filtration to obtain the refined iron powder after concentration. Tailings obtained by the first-stage elutriation magnetic separation and the second-stage elutriation magnetic separation are fed into an inclined plate concentrator 11 for inclined plate concentration, and overflow with the solid content of less than or equal to 400mg/L obtained by the inclined plate concentration is used as washing water for production of the first-stage elutriation magnetic separation and the second-stage elutriation magnetic separation and returns to a first-stage elutriation magnetic separator 9 and a second-stage elutriation magnetic separator 10 for recycling; and the underflow with the concentration of more than or equal to 20wt% concentrated by the inclined plate is returned to the second-stage ball mill 7 as the concentration tailings for second-stage ball milling again.
(4) Feeding the tailings subjected to wet type pre-selection in the step (1) into a linear sieve 13 for linear sieving, wherein the oversize product with the granularity larger than 1mm subjected to linear sieving is tailings; and (3) enabling the undersize product with the granularity less than or equal to 1mm after linear screening and the tailings obtained by the first-stage magnetic separation and the second-stage magnetic separation to enter a tailing recycling machine 14, recycling a part of tailings through the tailing recycling machine 14 and feeding the part of tailings into the first-stage magnetic separator 4, and taking the rest tailings as final comprehensive tailings.
Example 1: and (3) feeding the ore pulp obtained by fully mixing the crushed 0-8 mm fine ore and water into a wet preselection machine, and throwing out part of impurities and nonmagnetic minerals in advance to obtain preselection concentrate. Feeding the pre-selected concentrate into a closed circuit of a first-stage ball mill and a spiral classifier, grinding and classifying to obtain a spiral classifier overflow with the fineness of 35-45% of-200 meshes, feeding the overflow into the first-stage permanent magnetic separator, carrying out magnetic separation to obtain a first-stage magnetic concentrate, feeding the first-stage magnetic concentrate into a closed circuit of a second-stage ball mill, a cyclone and a high-frequency sieve, grinding and classifying to obtain a product with the fineness of-200 meshes of 65-70%, and feeding into the second-stage permanent magnetic separator for further separation to obtain a second-stage magnetic concentrate with the iron grade of 60%. And feeding the second-stage magnetic concentrate into a two-stage elutriation magnetic separator, performing two-stage elutriation magnetic separation to obtain a product with the iron grade of more than 62%, and performing dehydration filtration to obtain iron concentrate powder with the iron grade of more than 62%, thereby achieving the purpose of further extracting iron and reducing impurities. The full-automatic elutriation magnetic separator is matched with an inclined plate concentrator for use: tailings of the first-stage and second-stage full-automatic elutriation magnetic separators are fed into an inclined plate thickener, overflow with the solid content not greater than 400mg/L of the inclined plate thickener is used as flushing water for production of the first-stage and second-stage full-automatic elutriation magnetic separators, and the flushing water returns to the full-automatic elutriation magnetic separators for recycling, so that recycling of overflow water is realized, and a large amount of water resources are saved. Through statistics, the grade of the obtained iron ore concentrate is average 62.4%, and the recovery rate is average 97.5%.
Claims (5)
1. The utility model provides a high vanadium titano-magnetite ore dressing system which characterized in that: comprises a wet preselector (1), two sections of ball mills, two sections of magnetic separators and two sections of elutriation magnetic separators;
a pre-concentration concentrate outlet of the wet pre-concentration machine (1) is communicated with an inlet of the first section of ball mill (2), and an outlet of the first section of ball mill (2) is communicated with an inlet of the spiral classifier (3); a sand setting outlet of the spiral classifier (3) is communicated with an inlet of the first section of the ball mill (2), and an overflow outlet of the spiral classifier (3) is communicated with an inlet of the first section of the magnetic separator (4);
a concentrate outlet of the first-stage magnetic separator (4) is communicated with an inlet of a cyclone (5), and an overflow outlet of the cyclone (5) is communicated with an inlet of a high-frequency sieve (6); an oversize outlet of the high-frequency sieve (6) and a sand setting outlet of the cyclone (5) are both communicated with an inlet of the second-stage ball mill (7), and an ore discharge outlet of the second-stage ball mill (7) is communicated with an inlet of the cyclone (5); the undersize outlet of the high-frequency sieve (6) is communicated with the inlet of the second section of magnetic separator (8);
and the concentrate outlet of the second section of magnetic separator (8) is communicated with the inlet of the first section of elutriation magnetic separator (9), and the concentrate outlet of the first section of elutriation magnetic separator (9) is communicated with the inlet of the second section of elutriation magnetic separator (10).
2. The beneficiation system for high vanadium titano-magnetite according to claim 1, wherein: tailings outlets of the first-stage elutriation magnetic separator (9) and the second-stage elutriation magnetic separator (10) are communicated with an inclined plate thickener (11); an overflow port of the inclined plate concentrator (11) is communicated with flushing water inlets of the first section elutriation magnetic separator (9) and the second section elutriation magnetic separator (10), and a underflow port of the inclined plate concentrator (11) is communicated with an inlet of the second section ball mill (7).
3. The beneficiation system for high vanadium titano-magnetite according to claim 1, wherein: a pre-selection tailing outlet of the wet pre-selection machine (1) is communicated with a linear sieve (13); the undersize outlet of the linear sieve (13) is communicated with a tailings reclaimer (14).
4. A high vanadium titano-magnetite beneficiation system according to claim 1, 2 or 3, wherein: and the tailing outlet of the first section of magnetic separator (4) and the tailing outlet of the second section of magnetic separator (8) are both communicated with a tailing recycling machine (14).
5. The beneficiation system for high vanadium titano-magnetite according to claim 4, wherein: and a recycling outlet of the tailings recycling machine (14) is communicated with an inlet of the first-stage magnetic separator (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120714704.0U CN215612303U (en) | 2021-04-08 | 2021-04-08 | High vanadium titano-magnetite ore dressing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120714704.0U CN215612303U (en) | 2021-04-08 | 2021-04-08 | High vanadium titano-magnetite ore dressing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215612303U true CN215612303U (en) | 2022-01-25 |
Family
ID=79935548
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120714704.0U Active CN215612303U (en) | 2021-04-08 | 2021-04-08 | High vanadium titano-magnetite ore dressing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215612303U (en) |
-
2021
- 2021-04-08 CN CN202120714704.0U patent/CN215612303U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102172559A (en) | Tungsten and tin recovery concentration method combining centrifugal concentration with floatation | |
| CN108212507B (en) | Mineral processing technology for recovering fine grains and micro-fine grains of cassiterite from tailings | |
| CN104815748A (en) | Two-stage crushing and grinding flotation technology for coking medium coal | |
| CN110624686A (en) | Magnetite beneficiation process capable of fully releasing mill capacity | |
| CN111686926A (en) | Rough and fine separation-magnetism-weight-floatation combined process for treating magnetite | |
| US3791595A (en) | Method for processing iron ore concentrates | |
| CN102755928A (en) | Method for screening molybdenum ores and sulfur ores | |
| CN111715396A (en) | Copper-containing magnetite wet-type pre-selection grinding classification system and pre-selection process thereof | |
| WO2024045687A2 (en) | Method for pre-selection and discarding and reducing over-grinding of gold ores | |
| CN111841880A (en) | Wet-type pre-selection process for copper-containing magnetite ore | |
| CN210207202U (en) | System for collophanite pre-grading, ore grinding grading and separate flotation combined process | |
| CN110038718B (en) | Process for efficiently separating micro-fine tungsten ore by using centrifugal machine and flotation | |
| CN104722391A (en) | Method for recycling low-concentration and micro-fine-particle hematite floatation tailings | |
| CN215612303U (en) | High vanadium titano-magnetite ore dressing system | |
| CN111589574A (en) | Method for recovering copper and gold from copper-containing tailings | |
| CN212468475U (en) | Copper-containing magnetite wet-type pre-selection ore grinding grading system | |
| CN113953080B (en) | Mineral separation method of mixed iron ore | |
| CN113117880A (en) | Beneficiation process and beneficiation system for high-vanadium titano-magnetite | |
| CN102228862A (en) | Novel recovering process of Anshan-type iron tailings | |
| CN113304876B (en) | Beneficiation method for copper-containing high-sulfur magnetite ore | |
| CN115365139B (en) | High-gradient strong magnetic separation method for recycling fine ilmenite from low-grade titanium tailings | |
| CN115634770B (en) | Fluorite ore dense medium pre-separation tailing discarding and commercial grade block and powder ore extraction process | |
| CN110026287B (en) | Short-flow process for efficiently separating micro-fine tin ore by using centrifugal machine | |
| CN220879190U (en) | Lepidolite ore dressing system | |
| CN219850097U (en) | Spodumene ore dense medium sorting and floatation combined sorting system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |