CN211563742U - System for retrieve iron ore from dry-type magnetic separation barren rock - Google Patents
System for retrieve iron ore from dry-type magnetic separation barren rock Download PDFInfo
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- CN211563742U CN211563742U CN201921755752.3U CN201921755752U CN211563742U CN 211563742 U CN211563742 U CN 211563742U CN 201921755752 U CN201921755752 U CN 201921755752U CN 211563742 U CN211563742 U CN 211563742U
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- iron ore
- shale shaker
- ray radiation
- conveyor belt
- magnetic separation
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Abstract
The utility model discloses a system for retrieve iron ore from dry-type magnetic separation barren rock, including feeding system, grading system, iron ore recovery system, feeding system includes loader, feed bin and the vibratory feeder of feed bin lower part, the grading system includes shale shaker, undersize conveyor belt, iron ore recovery system includes X ray radiation sorter and selects separately the product conveyor belt, the shale shaker sets up the vibratory feeder discharge end in the feed bin lower part, the sifter of shale shaker is located X ray radiation sorter feed inlet front upper place, undersize conveyor belt sets up the sifter below the shale shaker; the utility model discloses a shale shaker 4 carries out the back of grading, distinguishes ore and barren rock according to iron content's difference through the X-ray radiation sorter again, effectively retrieves the iron ore in the barren rock, need not links such as breakage, ore grinding and size mixing, has the advantage of high efficiency, cleanness, low cost, high environmental protection, has the range of application extensively, selects separately the characteristics that the precision is high, realize easily.
Description
Technical Field
The utility model belongs to the technical field of the ore dressing, concretely relates to retrieve system of iron ore from dry-type magnetic separation barren rock.
Background
The amount of iron ore in lean ore is large in China, the grade of the iron ore is in a descending trend, the national standard specifies 25% of the mining boundary grade of the iron oxide ore and 20% of the mining boundary grade of the magnetite, but due to the shortage of resources, the boundary grade of the iron oxide ore or the magnetite ore is lower than the specified standard in the actual mining process, and the mining boundary grade of part of the magnetite ore is reduced to 15%. In order to reduce the grinding and separation cost, low-grade ores are generally designed with a preselection link, the existing preselection is mostly a dry magnetic separation process, the dry magnetic separation is carried out by utilizing the combined action of gravity, centrifugal force and magnetic force borne by the moving ores in a magnetic field, and the dry magnetic separation inevitably causes partial ores to be discarded as waste rocks due to the reasons of large granularity and density difference, small difference of specific magnetization coefficient and the like between single ores and the waste rocks, so that the resource waste is caused, and the environmental protection stockpiling pressure is increased.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a system for retrieve iron ore from dry-type magnetic separation barren rock to solve in the current because of granularity and density difference between single ore and the barren rock are big, than reasons such as the magnetic coefficient difference is little, cause partial ore to be abandoned as the barren rock, cause the problem of wasting of resources.
In order to achieve the above object, the utility model adopts the following technical scheme: the utility model provides a system for retrieve iron ore from dry-type magnetic separation barren rock, includes feeding system, grading system, iron ore recovery system, feeding system includes loader, feed bin and the vibratory feeder of feed bin lower part, grading system includes shale shaker, undersize conveyor belt, iron ore recovery system includes X ray radiation sorter and selects separately the result conveyor belt, the shale shaker sets up the vibratory feeder discharge end in the feed bin lower part, the sifter of shale shaker is located upper place before the X ray radiation sorter feed inlet, undersize conveyor belt sets up the sifter below at the shale shaker.
Further, select separately the product conveyer belt and include barren rock conveyer belt and iron ore conveyer belt, barren rock conveyer belt and iron ore conveyer belt set up the discharge end at X ray radiation sorter respectively.
Further, the vibrating screen is a plane vibrating screen, the screen holes are round, square or rectangular, and the aperture of each screen hole is larger than 25 mm.
The utility model has the advantages that: after the waste rocks are classified through the vibrating screen, the ores and the waste rocks are distinguished through the X-ray radiation sorting machine according to the difference of iron content, iron ores in the waste rocks are effectively recycled, links such as crushing, ore grinding and size mixing are not needed, the method has the advantages of being efficient, clean, low in cost and high in environment friendliness, the method has the advantages of being wide in application range, high in sorting precision and easy to achieve, the iron ores with the yield of more than 15% and the iron grade of more than 25% are recycled from the waste rocks thrown out through dry magnetic separation, the resource utilization rate can be effectively improved, and the environmental protection pressure of waste rock stacking is reduced.
Drawings
FIG. 1 is a schematic structural diagram of a system for recovering iron ore from dry magnetic separation waste rock.
In the figure: 1. waste rock; 2. a loader; 3. a storage bin; 4. vibrating screen; 5. an X-ray radiation sorter; 6. a undersize conveyor belt; 7. an iron ore conveying belt; 8. waste stone conveyor belt.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1, a system for recovering iron ore from dry magnetic separation waste rocks comprises a feeding system, a grading system and an iron ore recovery system, wherein the feeding system comprises a loader 2, a bin 3 and a vibratory feeder at the lower part of the bin 3, the grading system comprises a vibrating screen 4 and an undersize conveyor belt 6, the iron ore recovery system comprises an X-ray radiation separator 5 and a separation product conveyor belt, the vibrating screen 4 is arranged at the discharge end of the vibratory feeder at the lower part of the bin 3, the screen surface of the vibrating screen 4 is positioned in front of and above the feed inlet of the X-ray radiation separator 5, and the undersize conveyor belt 6 is arranged below the screen surface of the vibrating screen 4; the sorting product conveying belt comprises a waste rock conveying belt 8 and an iron ore conveying belt 7, and the waste rock conveying belt 8 and the iron ore conveying belt 7 are respectively arranged at the discharge end of the X-ray radiation sorting machine 5; the vibrating screen is a plane vibrating screen, the screen holes are round, square or rectangular, the aperture of the screen holes is larger than 25mm,
when the automatic sorting machine works, a loader 2 shovels and transports waste rocks 1 to a storage bin 3, the waste rocks are distributed on a plane vibrating screen 4 through a vibrating feeder at the lower part of the storage bin 3 and are sorted through a round hole sieve with the mesh diameter of 25mm, oversize products larger than 30mm enter an X-ray radiation sorting machine 5, undersize products smaller than 30mm are transported to a waste rock storage yard through an undersize conveying belt 6, the X-ray radiation sorting machine 5 carries out semi-quantitative analysis on each ore through a detector by utilizing the X-ray fluorescence principle, the result is input into a computer system for analysis and processing, the computer judges whether the ore or the waste rocks are according to a set threshold value, sorting is realized through an execution mechanism, after sorting, the recovered iron ore is transported to a sorting plant through an iron ore conveying belt 7, the sorted waste rocks are transported to the waste rock storage yard through a waste rock conveying belt 8, the iron content of the recovered iron ore is 25% -35%, and the iron content of the sorted waste rocks is below 10%, the yield of the recovered iron ore is more than 15 percent.
The utility model provides a waste rock can be the waste rock that natural magnetite thrown out through dry-type magnetic pulley preselection, also can be the waste rock that iron oxide ore thrown out through dry-type roller belt strong magnetic separator or dry-type cylinder strong magnetic separator preselection, can also be the waste rock that iron oxide ore passed through dry-type magnetic pulley preselection after the magnetization calcination.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. The utility model provides a system for retrieve iron ore from dry-type magnetic separation barren rock, its characterized in that, includes feeding system, grading system, iron ore recovery system, feeding system includes loader, feed bin and the vibratory feeder of feed bin lower part, grading system includes shale shaker, undersize conveyor belt, iron ore recovery system includes X ray radiation sorter and selects separately the result conveyor belt, the shale shaker sets up the vibratory feeder discharge end in the feed bin lower part, the sifter of shale shaker is located upper front side of X ray radiation sorter feed inlet, undersize conveyor belt sets up the sifter below at the shale shaker.
2. The system for recovering the iron ore from the dry magnetic separation waste rock according to claim 1, characterized in that: the sorting product conveying belt comprises a waste rock conveying belt and an iron ore conveying belt, and the waste rock conveying belt and the iron ore conveying belt are respectively arranged at the discharge end of the X-ray radiation sorting machine.
3. The system for recovering the iron ore from the dry magnetic separation waste rock according to claim 1, characterized in that: the vibrating screen is a plane vibrating screen, the screen holes are round, square or rectangular, and the aperture of each screen hole is larger than 25 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921755752.3U CN211563742U (en) | 2019-10-18 | 2019-10-18 | System for retrieve iron ore from dry-type magnetic separation barren rock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921755752.3U CN211563742U (en) | 2019-10-18 | 2019-10-18 | System for retrieve iron ore from dry-type magnetic separation barren rock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211563742U true CN211563742U (en) | 2020-09-25 |
Family
ID=72529538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921755752.3U Expired - Fee Related CN211563742U (en) | 2019-10-18 | 2019-10-18 | System for retrieve iron ore from dry-type magnetic separation barren rock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211563742U (en) |
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2019
- 2019-10-18 CN CN201921755752.3U patent/CN211563742U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200925 Termination date: 20211018 |