CN112387409A - Grinding-assisting method and system for vanadium titano-magnetite - Google Patents
Grinding-assisting method and system for vanadium titano-magnetite Download PDFInfo
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- CN112387409A CN112387409A CN202011141624.7A CN202011141624A CN112387409A CN 112387409 A CN112387409 A CN 112387409A CN 202011141624 A CN202011141624 A CN 202011141624A CN 112387409 A CN112387409 A CN 112387409A
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- magnetite
- ore
- vanadium titano
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- citric acid
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/06—Selection or use of additives to aid disintegrating
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Abstract
The invention provides a grinding-aiding method and a grinding-aiding system for vanadium titano-magnetite, wherein the method comprises the following steps: preparing a citric acid solution with a certain concentration; carrying out primary crushing on the vanadium titano-magnetite; screening the crushed vanadium titano-magnetite by using a fine sieve, crushing the vanadium titano-magnetite left on the fine sieve again, and taking the vanadium titano-magnetite passing through the fine sieve as crushed ore; feeding the crushed ore into a grinding machine, and adding a citric acid solution to grind the ore; and (4) performing water screening on the vanadium titano-magnetite after ore grinding by adopting a standard screen. According to the invention, the prepared citric acid solution is added in the ore grinding process to grind the ore, so that the surface activity of the ore is changed, the ore grinding efficiency is effectively improved, the ore grinding energy consumption is reduced, and the ore dressing cost of the vanadium-titanium magnetite is reduced.
Description
Technical Field
The invention relates to the technical field of mineral separation, in particular to a grinding-aiding method and system for vanadium titano-magnetite.
Background
The vanadium titano-magnetite is used as an important source of iron, is accompanied by various components such as vanadium, titanium, cobalt, chromium and the like, and has high comprehensive utilization value. When the vanadium titano-magnetite is applied, especially in the process of ore dressing, the energy consumption of the ore grinding process accounts for more than 70% of the total energy consumption of the ore dressing of the vanadium titano-magnetite, the power consumption is high, and the ore grinding cost is high. Therefore, an ore grinding method is needed to improve the ore grinding efficiency, reduce the ore grinding energy consumption and save the production cost.
Disclosure of Invention
In view of the above, the invention aims to provide a grinding-aid method and a grinding-aid system for vanadium titano-magnetite, which are used for solving the problem of high energy consumption in the ore grinding process in the prior art.
Based on the aim, the invention provides a grinding-aiding method for vanadium titano-magnetite, which comprises the following steps:
preparing a citric acid solution;
carrying out primary crushing on the vanadium titano-magnetite;
screening the crushed vanadium titano-magnetite by using a fine sieve, crushing the vanadium titano-magnetite left on the fine sieve again, and taking the vanadium titano-magnetite passing through the fine sieve as crushed ore;
feeding the crushed ore into a grinding machine, and adding a citric acid solution to grind the ore;
and (4) performing water screening on the vanadium titano-magnetite after ore grinding by adopting a standard screen.
In some embodiments, the citric acid solution has a mass concentration of 0.05 g/ml.
In some embodiments, the ratio of the mass of the citric acid to the mass of the vanadium titano-magnetite in the ore grinding is 0.1-0.2%.
In some embodiments, the fine screen has a pore size of 3 mm.
In some embodiments, the standard sieve has a mesh size of 200 mesh.
In some embodiments, the mill is a ball mill or a rod mill.
In some embodiments, the media is fed into the mill grind with a media fill of 30-45%.
In some embodiments, the grinding time is 5-20 min.
In some embodiments, the mass concentration of the ore pulp of the ore grinding is 50-85%.
In another aspect of the present invention, a grinding aid system for vanadium titano-magnetite is also provided, which comprises:
the crushing unit is used for crushing the vanadium titano-magnetite for one section;
the screening unit is used for screening the crushed vanadium titano-magnetite by adopting a fine screen, crushing the vanadium titano-magnetite left on the fine screen again, and taking the vanadium titano-magnetite passing through the fine screen as crushed ore;
the ore grinding unit is used for feeding the crushed ore into a grinding machine and adding a citric acid solution to grind the ore; and
and the water screen unit is used for performing water screening on the milled vanadium titano-magnetite by adopting a standard screen.
The invention has the following beneficial technical effects:
according to the invention, the prepared citric acid solution is added in the ore grinding process to grind the ore, so that the surface activity of the ore is changed, the ore grinding efficiency is effectively improved, the ore grinding energy consumption is reduced, and the ore dressing cost of the vanadium-titanium magnetite is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other embodiments can be obtained by using the drawings without creative efforts.
FIG. 1 is a schematic diagram of an embodiment of a grinding-aid method for vanadium titano-magnetite, which is provided according to the invention;
fig. 2 is a schematic diagram of an embodiment of a grinding aid system for vanadium titano-magnetite, provided in accordance with the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the following embodiments of the present invention are described in further detail with reference to the accompanying drawings.
It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are used for distinguishing two entities with the same name but different names or different parameters, and it is understood that "first" and "second" are only used for convenience of expression and should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "comprises" and "comprising," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements does not include all of the other steps or elements inherent in the list.
In view of the above, in a first aspect of the embodiments of the present invention, an embodiment of a grinding aid method for vanadium titano-magnetite is provided. Fig. 1 is a schematic diagram of an embodiment of a grinding-aid method for vanadium titano-magnetite, which is provided by the invention. As shown in fig. 1, the embodiment of the present invention includes the following steps:
step S10, preparing a citric acid solution;
step S20, carrying out first-stage crushing on the vanadium titano-magnetite;
step S30, screening the crushed vanadium titano-magnetite by using a fine sieve, crushing the vanadium titano-magnetite left on the fine sieve again, and taking the vanadium titano-magnetite passing through the fine sieve as crushed ore;
step S40, feeding the crushed ore into a mill, and adding a citric acid solution to grind the ore;
and step S50, performing water screening on the milled vanadium titano-magnetite by adopting a standard screen.
In the embodiment of the invention, the prepared citric acid solution is added in the ore grinding process to grind the ore, so that the surface activity of the ore is changed, the ore grinding efficiency is effectively improved, the ore grinding energy consumption is reduced, and the ore dressing cost of the vanadium-titanium magnetite is reduced.
In some embodiments, the citric acid solution has a mass concentration of 0.05 g/ml; the ratio of the mass of the citric acid in the ore grinding to the mass of the vanadium titano-magnetite is 0.1-0.2%; the aperture of the fine sieve is 3 mm; the mesh number of the standard sieve is 200 meshes; the mill is a ball mill or a rod mill; feeding a medium into a mill for grinding, wherein the filling rate of the medium is 30-45%; the ore grinding time is 5-20 min; the mass concentration of ore pulp of ore grinding is 50-85%.
Example 1
Crushing 10mm vanadium-titanium magnetite raw ore to be less than 3mm by adopting a first-stage closed circuit, feeding 500g of crushed ore into a ball mill, adding 10ml of citric acid solution, and milling for 10min, wherein the filling rate of a medium of the ball mill is 30 percent, the mass concentration of the ground ore is 60 percent, and then performing water screening on the ground ore product by adopting a 200-mesh standard screen, wherein the content of a-200 mesh is 68.3 percent.
Example 2
Crushing 10mm vanadium-titanium magnetite raw ore to be less than 3mm by adopting a first-stage closed circuit, feeding 500g of crushed ore into a ball mill, adding 15ml of citric acid solution, and milling for 10min, wherein the filling rate of a medium of the ball mill is 30 percent, the mass concentration of the ground ore is 60 percent, and then performing water screening on the ground ore product by adopting a 200-mesh standard screen, wherein the content of a-200 mesh is 69.4 percent.
Example 3
Crushing 10mm vanadium-titanium magnetite raw ore to be less than 3mm by adopting a first-stage closed circuit, feeding 500g of crushed ore into a ball mill, adding 20ml of citric acid solution, and milling for 10min, wherein the filling rate of a medium of the ball mill is 30 percent, the mass concentration of the ground ore is 60 percent, and then performing water screening on the ground ore product by adopting a 200-mesh standard screen, wherein the content of a 200-mesh standard screen is 70.3 percent.
In a second aspect of the embodiment of the invention, a grinding-aid system for vanadium titano-magnetite is also provided. Fig. 2 is a schematic diagram of an embodiment of a grinding aid system for vanadium titano-magnetite, which is provided by the invention. A vanadium titano-magnetite grinding aid system comprises: the crushing unit 20 is used for performing primary crushing on the vanadium titano-magnetite; the screening unit 30 is used for screening the crushed vanadium titano-magnetite by using a fine screen, crushing the vanadium titano-magnetite left on the fine screen again, and taking the vanadium titano-magnetite passing through the fine screen as crushed ore; the ore grinding unit 40 is used for feeding the crushed ore into a grinding machine and adding a citric acid solution to grind the ore; and the water screen unit 50 is used for performing water screening on the milled vanadium titano-magnetite by adopting a standard screen.
The vanadium titano-magnetite grinding aid system of this embodiment has effectively improved ore grinding efficiency, has reduced the ore grinding energy consumption, has reduced the ore dressing cost of vanadium titano-magnetite.
The foregoing is an exemplary embodiment of the present disclosure, but it should be noted that various changes and modifications could be made herein without departing from the scope of the present disclosure as defined by the appended claims. The functions, steps and/or actions of the method claims in accordance with the disclosed embodiments described herein need not be performed in any particular order. Furthermore, although elements of the disclosed embodiments of the invention may be described or claimed in the singular, the plural is contemplated unless limitation to the singular is explicitly stated.
It should be understood that, as used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly supports the exception. It should also be understood that "and/or" as used herein is meant to include any and all possible combinations of one or more of the associated listed items. The numbers of the embodiments disclosed in the embodiments of the present invention are merely for description, and do not represent the merits of the embodiments.
Those of ordinary skill in the art will understand that: the discussion of any embodiment above is meant to be exemplary only, and is not intended to intimate that the scope of the disclosure, including the claims, of embodiments of the invention is limited to these examples; within the idea of an embodiment of the invention, also technical features in the above embodiment or in different embodiments may be combined and there are many other variations of the different aspects of the embodiments of the invention as described above, which are not provided in detail for the sake of brevity. Therefore, any omissions, modifications, substitutions, improvements, and the like that may be made without departing from the spirit and principles of the embodiments of the present invention are intended to be included within the scope of the embodiments of the present invention.
Claims (10)
1. A grinding-aiding method for vanadium titano-magnetite is characterized by comprising the following steps:
preparing a citric acid solution;
carrying out primary crushing on the vanadium titano-magnetite;
screening the crushed vanadium titano-magnetite by using a fine sieve, crushing the vanadium titano-magnetite left on the fine sieve again, and taking the vanadium titano-magnetite passing through the fine sieve as crushed ore;
feeding the crushed ore into a grinding machine and adding the citric acid solution for grinding;
and (4) performing water screening on the vanadium titano-magnetite after ore grinding by adopting a standard screen.
2. The method according to claim 1, wherein the citric acid solution has a mass concentration of 0.05 g/ml.
3. The method according to claim 1, wherein the ratio of the mass of the citric acid used in the ore grinding to the mass of the vanadium titano-magnetite is 0.1-0.2%.
4. The method of claim 1, wherein the fine screen has a pore size of 3 mm.
5. The method of claim 1, wherein the standard screen has a mesh size of 200 mesh.
6. The method of claim 1, wherein the mill is a ball mill or a rod mill.
7. A method according to claim 6, wherein media is fed into the mill grind, the media having a fill rate of 30 to 45%.
8. The method according to claim 1, wherein the grinding time is 5-20 min.
9. The method according to claim 1, characterized in that the mass concentration of the ore pulp of the ore grinding is 50-85%.
10. A grinding-aid system for vanadium titano-magnetite, which is characterized by comprising:
the crushing unit is used for crushing the vanadium titano-magnetite for one section;
the screening unit is used for screening the crushed vanadium titano-magnetite by adopting a fine screen, crushing the vanadium titano-magnetite left on the fine screen again, and taking the vanadium titano-magnetite passing through the fine screen as crushed ore;
the ore grinding unit is used for feeding the crushed ore into a grinding machine and adding the citric acid solution to grind the ore; and
and the water screen unit is used for performing water screening on the milled vanadium titano-magnetite by adopting a standard screen.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011141624.7A CN112387409A (en) | 2020-10-22 | 2020-10-22 | Grinding-assisting method and system for vanadium titano-magnetite |
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| CN202011141624.7A CN112387409A (en) | 2020-10-22 | 2020-10-22 | Grinding-assisting method and system for vanadium titano-magnetite |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102225358A (en) * | 2011-06-07 | 2011-10-26 | 何德武 | Ore dressing method of vanadium titanium magnetite |
| CN103736574A (en) * | 2014-01-21 | 2014-04-23 | 米易元通铁钛有限责任公司 | Vanadium titano-magnetite screening method |
| CN106513154A (en) * | 2016-11-03 | 2017-03-22 | 江苏省冶金设计院有限公司 | Ore-grinding magnetic separation additive and application thereof |
-
2020
- 2020-10-22 CN CN202011141624.7A patent/CN112387409A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102225358A (en) * | 2011-06-07 | 2011-10-26 | 何德武 | Ore dressing method of vanadium titanium magnetite |
| CN103736574A (en) * | 2014-01-21 | 2014-04-23 | 米易元通铁钛有限责任公司 | Vanadium titano-magnetite screening method |
| CN106513154A (en) * | 2016-11-03 | 2017-03-22 | 江苏省冶金设计院有限公司 | Ore-grinding magnetic separation additive and application thereof |
Non-Patent Citations (1)
| Title |
|---|
| 孙传尧: "《选矿工程师手册 第1册 上 选矿通论》", 31 March 2015 * |
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