CN108393191A - A kind of novel magnetic iron ore sorting process - Google Patents
A kind of novel magnetic iron ore sorting process Download PDFInfo
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- CN108393191A CN108393191A CN201810378989.8A CN201810378989A CN108393191A CN 108393191 A CN108393191 A CN 108393191A CN 201810378989 A CN201810378989 A CN 201810378989A CN 108393191 A CN108393191 A CN 108393191A
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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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Abstract
The invention discloses a kind of novel magnetic iron ore sorting processes, belong to mine ore dressing technical field.The present invention includes the following steps：Step 1：Raw ore inputs one section of ball mill and is ground, and is classified into one section of cyclone after the completion of grinding；Step 2：Overflow product enters weak magnetic wet magnetic separator and carries out roughing, and rougher concentration is classified into two sections of cyclones；Step 3：Overflow product input high frequency fine screen is classified again；Step 4：Undersize is concentrated by concentration magnetic separator, then is inputted a stages of magnetic separation column and sorted；Step 5：Magnetic concentrate feeds wash mill and handle and sorted into two stages of magnetic separation columns, and obtains final concentrate.The present invention suitably puts the graded product fineness of thick two sections of ball mills, forms the ore dressing new approaches for taking concentrate in advance, simplify traditional mill and select technological process, reduce production cost by being used in series a stages of magnetic separation column, wash mill, two stages of magnetic separation columns.
Description
Technical field
The present invention relates to mine ore dressing technical fields, more specifically to a kind of novel magnetic iron ore sorting process.
Background technology
Most of domestic magnetite separation industry processes operation using magnetic separation, and technique is mostly magnetic separation-two of stage grinding and stage separation
Secondary, magnetic dressing process again three times.And most commonly used screening installation is wet drum magnetic separator, with easy to operate, stability
The features such as high and maintaining facilitates.The process of magnetic separation is magnetic fields on mineral grain, and magnetite ore particles itself have
Magnet property has between magnetite ore particles and attracts each other, thus meeting " agglomerating ", " chain link ", and here it is so-called " magnetic coagulations ".
It can be wrapped in gangue and intergrowth in the conglomeration of " magnetic coagulation ", reduce magnetic separation process choosing, therefore, conventional magnetic plant
Alternating poles are all taken in (drum magnetic separator) manufacture, it is desirable to which multiple by mineral overturns the gangue being mingled with of dishing out, in practice it has proved that,
This phenomenon that being mingled with, is still apparent.In recent years, novel magnetic iron ore efficient separation equipment such as column magnetic separator, wash mill etc. was asked in succession
Generation, domestic each general election factory also competitively uses, but all uses last one of sorting operation before going out final concentrate substantially, not yet
The precedent for using column magnetic separator and wash mill before this is seen, is not also seen using dusting cover-column magnetic separator-wash mill or elutriation
Machine-column magnetic separator integration of operation technique.
Invention content
1. technical problems to be solved by the inivention
In view of the defects existing in the prior art with deficiency, the present invention provides a kind of novel magnetic iron ore sorting processes, should
Invention improves final concentrate quality, and shorten mill and select technological process, reduces work using the high advantage of the novel device efficiency of separation
Cheng Chengben.
2. technical solution
In order to achieve the above objectives, technical solution provided by the invention is：
A kind of novel magnetic iron ore sorting process of the present invention, step are：
Step 1：Raw ore inputs one section of ball mill and is ground, and the product after the completion of grinding, which enters one section of cyclone, to carry out
Classification；
Step 2：Overflow product after classification enters weak magnetic wet magnetic separator and carries out roughing, under weak magnetic rougher concentration enters
Two sections of cyclones of level-one are classified；
Step 3：Overflow product input high frequency fine screen after two sections of cyclone classifications carries out control classification；
Step 4：The undersize of high frequency fine screen is concentrated by concentration magnetic separator, then inputs stages of magnetic separation column progress
It sorts；
Step 5：The magnetic concentrate that one stages of magnetic separation column generates feeds wash mill and is handled, and two stages of magnetic separation are entered after processing
Column is sorted, and obtains final concentrate；
Step 6：One stages of magnetic separation column magnetic tailing, the oversize of high frequency fine screen, the mixing of two stages of magnetic separation column magnetic tailings are simultaneously
It is concentrated again by concentrating magnetic separator, concentration concentrate is obtained after concentration and concentrates tailing；
Step 7：Concentration concentrate feeds two sections of ball mills and is regrind and be classified again, and concentration tailing inputs tailing
Concentrator.
Further, two sections of cyclones select hydrocyclone.
Further, the step one, the sand setting product after classification return to one section of ball mill and are regrinded.
Further, the step three, the sand setting after two sections of cyclone classifications input two sections of ball mills and are ground again
Mill.
3. advantageous effect
Using technical solution provided by the invention, compared with prior art, have the advantages that：
The present invention utilizes the novel device efficiency of separation by being used in series a stages of magnetic separation column, wash mill, two stages of magnetic separation columns
High advantage, the Beneficiation flowsheet for replacing traditional drum magnetic separator cumbersome suitably put the graded product fineness of thick two sections of ball mills,
By isolating the part mineral of qualified grain size and qualified grade in grind grading product in advance, forms and take concentrate in advance
Ore dressing new approaches, effectively increase the quality of final concentrate, while simplifying traditional mill and selecting technological process, reduce and are produced into
This.
Description of the drawings
Fig. 1 is the process flow chart of the present invention.
Specific implementation mode
The invention will be further described with reference to the accompanying drawings and examples：
Embodiment 1
It will be seen from figure 1 that a kind of novel magnetic iron ore sorting process of the present embodiment, step are：
Step 1：Raw ore inputs one section of ball mill and is ground, and the product after the completion of grinding, which enters one section of cyclone, to carry out
Classification, the sand setting product after classification return to one section of ball mill and are regrinded；
Step 2：Overflow product after classification enters weak magnetic wet magnetic separator and carries out roughing, under weak magnetic rougher concentration enters
Two sections of cyclones of level-one are classified, and two sections of cyclones select hydrocyclone, the sand setting input after two sections of cyclone classifications
Two sections of ball mills are regrind；
Step 3：Overflow product input high frequency fine screen after two sections of cyclone classifications carries out control classification；
Step 4：The undersize of high frequency fine screen is concentrated by concentration magnetic separator, then inputs stages of magnetic separation column progress
It sorts；
Step 5：The magnetic concentrate that one stages of magnetic separation column generates feeds wash mill and is handled, and two stages of magnetic separation are entered after processing
Column is sorted, and obtains final concentrate；
Step 6：One stages of magnetic separation column magnetic tailing, the oversize of high frequency fine screen, the mixing of two stages of magnetic separation column magnetic tailings are simultaneously
It is concentrated again by concentrating magnetic separator, concentration concentrate is obtained after concentration and concentrates tailing；
Step 7：Concentration concentrate feeds two sections of ball mills and is regrind and be classified again, and concentration tailing inputs tailing
Concentrator.
The present invention utilizes the novel device efficiency of separation by being used in series a stages of magnetic separation column, wash mill, two stages of magnetic separation columns
High advantage, the Beneficiation flowsheet for replacing traditional drum magnetic separator cumbersome suitably put the graded product fineness of thick two sections of ball mills,
By isolating the part mineral of qualified grain size and qualified grade in grind grading product in advance, forms and take concentrate in advance
Ore dressing new approaches, effectively increase the quality of final concentrate, while simplifying traditional mill and selecting technological process, reduce and are produced into
This.
Schematically the present invention and embodiments thereof are described above, description is not limiting, institute in attached drawing
What is shown is also one of embodiments of the present invention, and actual structure is not limited to this.So if the common skill of this field
Art personnel are enlightened by it, without departing from the spirit of the invention, are not inventively designed and the technical solution
Similar frame mode and embodiment, are within the scope of protection of the invention.
Claims (4)
1. a kind of novel magnetic iron ore sorting process, it is characterised in that：Its step is：
Step 1：Raw ore inputs one section of ball mill and is ground, and the product after the completion of grinding is classified into one section of cyclone；
Step 2：Overflow product after classification enters weak magnetic wet magnetic separator and carries out roughing, and weak magnetic rougher concentration enters next stage
Two sections of cyclones be classified；
Step 3：Overflow product input high frequency fine screen after two sections of cyclone classifications carries out control classification；
Step 4：The undersize of high frequency fine screen is concentrated by concentration magnetic separator, then is inputted a stages of magnetic separation column and sorted；
Step 5：The magnetic concentrate that one stages of magnetic separation column generates feeds wash mill and is handled, enter after processing two stages of magnetic separation columns into
Row sorts, and obtains final concentrate；
Step 6：One stages of magnetic separation column magnetic tailing, the oversize of high frequency fine screen, two stages of magnetic separation column magnetic tailings mix and pass through
Concentration magnetic separator concentrates again, and concentration concentrate is obtained after concentration and concentrates tailing；
Step 7：Concentration concentrate feeds two sections of ball mills and is regrind and be classified again, and concentration tailing input tailing is dense
Machine.
2. a kind of novel magnetic iron ore sorting process according to claim 1, it is characterised in that：Two sections of cyclones
Select hydrocyclone.
3. a kind of novel magnetic iron ore sorting process according to claim 1, it is characterised in that：The step one, point
Sand setting product after grade returns to one section of ball mill and is regrinded.
4. a kind of novel magnetic iron ore sorting process according to claim 1, it is characterised in that：The step three, two
Sand setting after section cyclone classification inputs two sections of ball mills and is regrind.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810378989.8A CN108393191A (en) | 2018-04-25 | 2018-04-25 | A kind of novel magnetic iron ore sorting process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810378989.8A CN108393191A (en) | 2018-04-25 | 2018-04-25 | A kind of novel magnetic iron ore sorting process |
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| CN108393191A true CN108393191A (en) | 2018-08-14 |
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| CN201810378989.8A Pending CN108393191A (en) | 2018-04-25 | 2018-04-25 | A kind of novel magnetic iron ore sorting process |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109482338A (en) * | 2018-12-21 | 2019-03-19 | 马钢集团矿业有限公司 | A kind of beneficiation method of the narrow gradation of magnetic iron ore, the independent ore grinding of chats |
| CN110898957A (en) * | 2019-11-13 | 2020-03-24 | 鞍钢集团矿业有限公司 | Particle size grading pre-selection tailing discarding process for extremely lean hematite |
| CN111715393A (en) * | 2020-06-29 | 2020-09-29 | 安徽马钢矿业资源集团姑山矿业有限公司 | Mineral separation method for grading, recleaning and quality improvement of fine-grained magnetite concentrate |
| CN113019681A (en) * | 2021-03-22 | 2021-06-25 | 中冶北方（大连）工程技术有限公司 | Grinding and selecting process for producing pellet raw material iron fine powder |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109482338A (en) * | 2018-12-21 | 2019-03-19 | 马钢集团矿业有限公司 | A kind of beneficiation method of the narrow gradation of magnetic iron ore, the independent ore grinding of chats |
| CN110898957A (en) * | 2019-11-13 | 2020-03-24 | 鞍钢集团矿业有限公司 | Particle size grading pre-selection tailing discarding process for extremely lean hematite |
| CN111715393A (en) * | 2020-06-29 | 2020-09-29 | 安徽马钢矿业资源集团姑山矿业有限公司 | Mineral separation method for grading, recleaning and quality improvement of fine-grained magnetite concentrate |
| CN113019681A (en) * | 2021-03-22 | 2021-06-25 | 中冶北方（大连）工程技术有限公司 | Grinding and selecting process for producing pellet raw material iron fine powder |
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Application publication date: 20180814 |
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