CN109174453A - A kind of recovery process of iron tailings - Google Patents
A kind of recovery process of iron tailings Download PDFInfo
- Publication number
- CN109174453A CN109174453A CN201810991715.6A CN201810991715A CN109174453A CN 109174453 A CN109174453 A CN 109174453A CN 201810991715 A CN201810991715 A CN 201810991715A CN 109174453 A CN109174453 A CN 109174453A
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- Prior art keywords
- iron tailings
- iron
- powder
- carries out
- recovery process
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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
- 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
Abstract
The invention belongs to mining industry environment protection fields, and in particular to a kind of recovery process of iron tailings, the technique in accordance with the following steps: step 1, iron tailings is added on supreme material strip, is delivered on vibrating screen and carries out vibration filtering, obtains fine grained iron tailings powder；Step 2, iron tailings powder is entered and carries out magnetic separation recovery in high intensity magnetic separation device, obtain thick mine tailing；Step 3, thick mine tailing is put into grinding machine and is ground, the high-frequency screen that is then placed in that grinding reaches requirement is classified, and the miberal powder for reaching 160 mesh enters magnetic separator and carries out the selected Iron concentrate for obtaining 63% grade of twice；Step 4, the Iron concentrate chosen is put into slag-removing device after carrying out de- slag, the high-quality Iron concentrate of available 66% grade；Step 5, tailing mixing will be obtained in step 2, step 3 and step 4, is discharged into the discharge of row dry type by dry, is prepared into New Building Materials.The present invention solves the technical problem that iron tailings selects high-quality Iron concentrate again, and valuable metal class in iron tailings is comprehensively recyled.
Description
Technical field
The invention belongs to mining industry environment protection fields, and in particular to a kind of recovery process of iron tailings.
Background technique
It is not selected in iron tailings since the problems such as preparation equipment technique early period is backward and management has a large amount of iron at present, heap
Product forms waste in Tailings Dam, and does not have good technique that can be recycled.
Summary of the invention
For the problems of the prior art, the present invention provides a kind of recovery process of iron tailings, solves iron tailings and selects again
The technical problem of high-quality Iron concentrate comprehensively recyles valuable metal class in iron tailings.
To realize the above technical purpose, the technical scheme is that
A kind of recovery process of iron tailings, the technique in accordance with the following steps:
Step 1, iron tailings is added on supreme material strip, is delivered on vibrating screen and carries out vibration filtering, obtains iron tailings powder；
Step 2, iron tailings powder is added in high intensity magnetic separation device and carries out magnetic separation recovery, obtain thick tailing and the first smart magnetic mine；
Step 3, smart magnetic mine is put into grinding machine and is ground, be then placed in cyclone and be classified, obtain smart magnetic powder；
Step 4, the smart magnetic powder after classification is put into slag-removing device and carries out de- slag, then carried out two sections of smart magnetic responses, obtain
Iron concentrate；
Step 5, tailing mixing will be obtained in step 2, step 3 and step 4, is discharged into the discharge of row dry type by dry, is prepared into
New Building Materials.
The vibration frequency of vibration filtering in the step 1 is 3-5kHz, and the filter diameter of filtering is 1-3mm.
The magnetic field strength of magnetic separation in the step 2 is 800-1200GS.
The partial size of grinding in the step 3 is 0.2-1.2mm.
The temperature of dry type discharge in the step 5 is 120-150 DEG C.
From the above, it can be seen that the present invention has following advantages:
1. the present invention solves the technical problem that iron tailings selects high-quality Iron concentrate again, by valuable metal class in iron tailings into
Row comprehensively recyles.
2. the present invention is recycled iron by the way of high intensity magnetic separation comprehensively, the recycling of tail iron ore can be greatly improved,
Reduce production cost.
3. smart magnetic powder handle in west by the present invention by the way of classification, Iron concentrate is obtained, proposes monk's iron essence significantly
The product quality of powder is conducive to its subsequent use.
4. the tailing finally generated is carried out dry type discharge in technique of the invention, and it is prepared into construction material, Neng Goubian
Waste be changed into values, improves its use value.
Specific embodiment
The present invention will be described in detail in conjunction with the embodiments, but does not do any restriction to claim of the invention.
Embodiment 1
A kind of recovery process of iron tailings, the technique in accordance with the following steps:
Step 1, iron tailings is added on supreme material strip, is delivered on vibrating screen and carries out vibration filtering, obtains iron tailings powder；
Step 2, iron tailings powder is added in high intensity magnetic separation device and carries out magnetic separation recovery, obtain thick tailing and the first smart magnetic mine；
Step 3, smart magnetic mine is put into grinding machine and is ground, be then placed in cyclone and be classified, obtain smart magnetic powder；
Step 4, the smart magnetic powder after classification is put into slag-removing device and carries out de- slag, then carried out two sections of smart magnetic responses, obtain
Iron concentrate；
Step 5, tailing mixing will be obtained in step 2, step 3 and step 4, is discharged into the discharge of row dry type by dry, is prepared into
New Building Materials.
The vibration frequency of vibration filtering in the step 1 is 35kHz, and the filter diameter of filtering is 1mm.
The magnetic field strength of magnetic separation in the step 2 is 800GS.
The partial size of grinding in the step 3 is 0.2mm.
The temperature of dry type discharge in the step 5 is 120 DEG C.
Embodiment 2
A kind of recovery process of iron tailings, the technique in accordance with the following steps:
Step 1, iron tailings is added on supreme material strip, is delivered on vibrating screen and carries out vibration filtering, obtains iron tailings powder；
Step 2, iron tailings powder is added in high intensity magnetic separation device and carries out magnetic separation recovery, obtain thick tailing and the first smart magnetic mine；
Step 3, smart magnetic mine is put into grinding machine and is ground, be then placed in cyclone and be classified, obtain smart magnetic powder；
Step 4, the smart magnetic powder after classification is put into slag-removing device and carries out de- slag, then carried out two sections of smart magnetic responses, obtain
Iron concentrate；
Step 5, tailing mixing will be obtained in step 2, step 3 and step 4, is discharged into the discharge of row dry type by dry, is prepared into
New Building Materials.
The vibration frequency of vibration filtering in the step 1 is 5kHz, and the filter diameter of filtering is 3mm.
The magnetic field strength of magnetic separation in the step 2 is 1200GS.
The partial size of grinding in the step 3 is 1.2mm.
The temperature of dry type discharge in the step 5 is 150 DEG C.
Embodiment 3
A kind of recovery process of iron tailings, the technique in accordance with the following steps:
Step 1, iron tailings is added on supreme material strip, is delivered on vibrating screen and carries out vibration filtering, obtains iron tailings powder；
Step 2, iron tailings powder is added in high intensity magnetic separation device and carries out magnetic separation recovery, obtain thick tailing and the first smart magnetic mine；
Step 3, smart magnetic mine is put into grinding machine and is ground, be then placed in cyclone and be classified, obtain smart magnetic powder；
Step 4, the smart magnetic powder after classification is put into slag-removing device and carries out de- slag, then carried out two sections of smart magnetic responses, obtain
Iron concentrate；
Step 5, tailing mixing will be obtained in step 2, step 3 and step 4, is discharged into the discharge of row dry type by dry, is prepared into
New Building Materials.
The vibration frequency of vibration filtering in the step 1 is 4kHz, and the filter diameter of filtering is 2mm.
The magnetic field strength of magnetic separation in the step 2 is 1000GS.
The partial size of grinding in the step 3 is 0.6mm.
The temperature of dry type discharge in the step 5 is 140 DEG C.
Detection
| Embodiment 1 | Embodiment 2 | Embodiment 3 | |
| Iron concentrate | 92% | 94.3% | 98.4% |
| Cost reduces ratio | 54% | 53% | 58% |
In conclusion the invention has the following advantages that
1. the present invention solves the technical problem that iron tailings selects high-quality Iron concentrate again, by valuable metal class in iron tailings into
Row comprehensively recyles.
2. the present invention is recycled iron by the way of high intensity magnetic separation comprehensively, the recycling of tail iron ore can be greatly improved,
Reduce production cost.
3. smart magnetic powder handle in west by the present invention by the way of classification, Iron concentrate is obtained, proposes monk's iron essence significantly
The product quality of powder is conducive to its subsequent use.
4. the tailing finally generated is carried out dry type discharge in technique of the invention, and it is prepared into construction material, Neng Goubian
Waste be changed into values, improves its use value.
It is understood that being merely to illustrate the present invention above with respect to specific descriptions of the invention and being not limited to this
Technical solution described in inventive embodiments.Those skilled in the art should understand that still can be carried out to the present invention
Modification or equivalent replacement, to reach identical technical effect；As long as meet use needs, all protection scope of the present invention it
It is interior.
Claims (5)
1. a kind of recovery process of iron tailings, it is characterised in that: the technique in accordance with the following steps:
Step 1, iron tailings is added on supreme material strip, is delivered on vibrating screen and carries out vibration filtering, obtains iron tailings powder；
Step 2, iron tailings powder is added in high intensity magnetic separation device and carries out magnetic separation recovery, obtain thick tailing and the first smart magnetic mine；
Step 3, smart magnetic mine is put into grinding machine and is ground, be then placed in cyclone and be classified, obtain smart magnetic powder；
Step 4, the smart magnetic powder after classification is put into slag-removing device and carries out de- slag, then carried out two sections of smart magnetic responses, obtain iron essence
Powder；
Step 5, tailing mixing will be obtained in step 2, step 3 and step 4, is discharged into the discharge of row dry type by dry, is prepared into novel
Construction material.
2. a kind of recovery process of iron tailings according to claim 1, it is characterised in that: vibrated in the step 1
The vibration frequency of filter is 3-5kHz, and the filter diameter of filtering is 1-3mm.
3. a kind of recovery process of iron tailings according to claim 1, it is characterised in that: magnetic separation in the step 2
Magnetic field strength is 800-1200GS.
4. a kind of recovery process of iron tailings according to claim 1, it is characterised in that: grinding in the step 3
Partial size is 0.2-1.2mm.
5. a kind of recovery process of iron tailings according to claim 1, it is characterised in that: the dry type row in the step 5
The temperature put is 120-150 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810991715.6A CN109174453A (en) | 2018-08-29 | 2018-08-29 | A kind of recovery process of iron tailings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810991715.6A CN109174453A (en) | 2018-08-29 | 2018-08-29 | A kind of recovery process of iron tailings |
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| Publication Number | Publication Date |
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| CN109174453A true CN109174453A (en) | 2019-01-11 |
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| CN201810991715.6A Pending CN109174453A (en) | 2018-08-29 | 2018-08-29 | A kind of recovery process of iron tailings |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1390795A (en) * | 2002-06-19 | 2003-01-15 | 北京高路通科技发展有限公司 | Process for treating steel slag |
| CN101773869A (en) * | 2009-01-13 | 2010-07-14 | 鞍钢集团矿业公司 | Process for processing low grade hematite ore |
| CN102586585A (en) * | 2011-10-25 | 2012-07-18 | 内蒙古科技大学 | Method for recovering iron from ferriferous tailings |
| CN102921541A (en) * | 2012-11-16 | 2013-02-13 | 鞍钢集团矿业公司 | Process for recovering flotation tailings of magnetite by adopting strong magnetic-anionic reverse flotation of hematite |
| CN104174483A (en) * | 2014-09-03 | 2014-12-03 | 鞍钢集团矿业公司 | Method for sorting fine-particle strongly magnetic mineral in hematite beneficiation process |
| CN108339660A (en) * | 2017-01-21 | 2018-07-31 | 海南科矿建筑材料有限公司 | A kind of recovery method of iron tailings |
-
2018
- 2018-08-29 CN CN201810991715.6A patent/CN109174453A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1390795A (en) * | 2002-06-19 | 2003-01-15 | 北京高路通科技发展有限公司 | Process for treating steel slag |
| CN101773869A (en) * | 2009-01-13 | 2010-07-14 | 鞍钢集团矿业公司 | Process for processing low grade hematite ore |
| CN102586585A (en) * | 2011-10-25 | 2012-07-18 | 内蒙古科技大学 | Method for recovering iron from ferriferous tailings |
| CN102921541A (en) * | 2012-11-16 | 2013-02-13 | 鞍钢集团矿业公司 | Process for recovering flotation tailings of magnetite by adopting strong magnetic-anionic reverse flotation of hematite |
| CN104174483A (en) * | 2014-09-03 | 2014-12-03 | 鞍钢集团矿业公司 | Method for sorting fine-particle strongly magnetic mineral in hematite beneficiation process |
| CN108339660A (en) * | 2017-01-21 | 2018-07-31 | 海南科矿建筑材料有限公司 | A kind of recovery method of iron tailings |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190111 |
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