CN107661814B - Screening-magnetic separation-ore grinding-magnetic separation flow equipment arrangement system - Google Patents
Screening-magnetic separation-ore grinding-magnetic separation flow equipment arrangement system Download PDFInfo
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- CN107661814B CN107661814B CN201711047231.8A CN201711047231A CN107661814B CN 107661814 B CN107661814 B CN 107661814B CN 201711047231 A CN201711047231 A CN 201711047231A CN 107661814 B CN107661814 B CN 107661814B
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- magnetic separation
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- ore
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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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- 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
- B03B9/00—General arrangement of separating plant, e.g. flow sheets
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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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/52—Mechanical processing of waste for the recovery of materials, e.g. crushing, shredding, separation or disassembly
Abstract
The invention relates to a screening-magnetic separation-ore grinding-magnetic separation process equipment arrangement system, which comprises a basic platform, a screening span, a buffer bin span, an ore grinding span, a buffer bin platform, a belt conveyor, a vibrating screen, a first-stage ball mill and a feeding device thereof, a first-stage cyclone group, an ore feeding pulp distributor, a first-stage magnetic separator and a coarse-grain pre-selection magnetic separator, and is characterized in that: the coarse grain pre-magnetic separation ore feeding ore pulp distributor, the first-stage weak magnetic separation ore pulp distributor and the first-stage cyclone group are sequentially arranged on the buffer bin platform; and a magnetic separation working platform is arranged below the buffer bin platform, and the coarse grain pre-selection magnetic separator and the primary magnetic separator are sequentially arranged. The invention has the advantages that: 1) The magnetic separation operation platform is arranged on the buffer bin span, the buffer bin platform is shared, the space at the lower part of the buffer bin is fully utilized, and the magnetic separation is not required to be independently arranged, so that the capital investment is greatly reduced; 2) The whole equipment is compact in arrangement, the distance of the connecting pipeline is shortened, energy is saved, consumption is reduced, and the flow is smoother.
Description
Technical Field
The invention belongs to the technical field of high-pressure roller mill product treatment equipment arrangement, and particularly relates to a screening-magnetic separation-ore grinding-magnetic separation flow equipment arrangement system.
Background
The high-pressure roller mill adopts the extrusion crushing mode, and the crushed materials are characterized in that: the material granularity is small, the powder content is large, and microcracks exist in the material particles, so that the characteristics are beneficial to subsequent grinding operation. Therefore, the high-pressure roller grinding technology is widely applied to the fine grinding operation flow of the concentrating mill. In a magnetite dressing plant, the granularity of undersize products subjected to closed-circuit screening by a high-pressure roller mill can be controlled to be 0-3mm, and the undersize products can be thrown away by 20-30% of non-magnetic minerals after coarse-grain pre-magnetic separation and tail throwing, so that the processing capacity of subsequent ore grinding can be greatly reduced, more and less grinding can be realized, and energy conservation and consumption reduction are realized.
The current equipment arrangement problem related to the high-pressure roller mill product treatment, namely the actual conditions of screening-magnetic separation-ore grinding-magnetic separation flow equipment arrangement are as follows: most concentrating mills put all magnetic separation operations and grinding operations in one main plant, and large concentrating mills often have magnetic separation operations and grinding operations which occupy a span of the main plant, which are called magnetic separation spans and grinding spans. Coarse pre-magnetic separation of the screened product of high-pressure roller grinding closed-circuit screening is the first stage operation of all magnetic separation operations before ore grinding operation after screening operation in terms of flow. Compared with other magnetic separation operations, the coarse grain gravity flow gradient is large, if the coarse grain pre-magnetic separation operation is placed on the magnetic separation span, the operation is generally positioned at the highest position of the magnetic separation span in order to meet the gravity flow of ore pulp, so that the height of the whole magnetic separation span is raised; in addition, the magnetic separation span and the screening span are separated from the buffer bin span by the ore grinding span, so that the pumping distance of coarse grain pre-magnetic separation operation is increased, and the energy consumption is increased.
Therefore, the development of a screening-magnetic separation-ore grinding-magnetic separation equipment arrangement system which has smooth flow, reasonable equipment arrangement, energy conservation and consumption reduction and does not need to increase the height of a magnetic separation span is necessary.
Disclosure of Invention
The invention aims to provide a screening-magnetic separation-ore grinding-magnetic separation process equipment arrangement system which is smooth in process, reasonable in equipment arrangement, energy-saving, consumption-reducing and free from increasing the height of a magnetic separation span.
The aim of the invention is realized by the following technical scheme:
the invention relates to a screening-magnetic separation-grinding-magnetic separation flow equipment arrangement system, which comprises a basic platform, a screening span, a buffer bin span, a grinding span, a buffer bin positioned at the middle upper part of the buffer bin span, a buffer bin platform positioned below the buffer bin, a belt conveyor positioned below the buffer bin and arranged on the buffer bin platform, a vibrating screen positioned below the driving wheel end of the belt conveyor and in the screening span, a section of ball mill and a feeding device thereof, a section of cyclone group feeding pump, a section of cyclone group, a section of magnetic separation ore feeding pulp distributor, a section of magnetic separator, a coarse grain pre-magnetic separation pulp distributor and a coarse grain pre-separation magnetic separator which are positioned on the basic platform in the grinding span, wherein the screening span, the buffer bin span and the grinding span are arranged in parallel and are sequentially connected, and is characterized in that: the coarse grain pre-magnetic separation ore pulp distributor, the first section of low-intensity magnetic separation ore pulp distributor and the first section of cyclone group are sequentially arranged on a buffer bin platform behind a tail wheel of the belt conveyor; a magnetic separation operation platform is arranged below the buffer bin platform of the buffer bin span, and the coarse grain pre-selection magnetic separator 8 and the primary magnetic separator 13 are sequentially arranged on the magnetic separation operation platform.
An undersize mine pump pool 5 is arranged on the foundation platform below the vibrating screen.
The under-screen ore pump is arranged on the basic platform of the buffer bin span and is connected with the under-screen ore pump pool 5 through a connecting pipeline, and an electric hoist 7 for installation and maintenance is arranged at a position below the magnetic separation operation platform corresponding to the under-screen ore pump.
The invention has the advantages that:
1) A magnetic separation operation platform is arranged below the buffer bin platform of the buffer bin span, coarse grain pre-magnetic separation operation and primary low-intensity magnetic separation operation are arranged on the magnetic separation operation platform, the existing free space at the lower part of the buffer bin is fully utilized, the magnetic separation is not required to be independently arranged, and the main plant is only composed of ore grinding spans, so that the capital investment is greatly reduced;
2) The coarse grain pre-magnetic separation ore feeding ore pulp distributor, the section of weak magnetic separation ore pulp distributor, the section of cyclone group and the vibrating screen feeding belt conveyor share a buffer bin platform, so that the idle space behind the belt conveyor is fully utilized, and the capital cost is further reduced;
3) The magnetic separator and the cyclone are arranged on the buffer bin span, so that the whole equipment is compact in arrangement, the distance between connecting pipelines among the equipment is shortened, the height difference required by the self-flowing of ore pulp is reduced, and the height difference of the whole equipment arrangement and the pumping energy consumption of the ore pulp required to be pumped are reduced. The arrangement of the whole system is basically consistent with the flow direction of screening-magnetic separation-ore grinding-magnetic separation, and the flow is smoother.
Drawings
Fig. 1 is a schematic diagram of a layout system of sieving-magnetic separation-grinding-magnetic separation flow equipment.
Detailed Description
Specific embodiments of the present invention are further described below with reference to the accompanying drawings.
As shown in fig. 1, the screening-magnetic separation-grinding-magnetic separation process equipment arrangement system comprises a basic platform 10, a screening span 2, a buffer span 1, a grinding span 17, a buffer bin 18 positioned at the middle upper part of the buffer span 1, a buffer bin platform 19 positioned below the buffer bin 18, a vibrating screen 4 feeding belt conveyor 3 positioned below the buffer bin 18 and arranged on the buffer bin platform 19, a vibrating screen 4 positioned below the driving wheel end part of the belt conveyor, a first-stage ball mill 15 positioned on the basic platform 10 in the grinding span 17 and a feeding device 14 thereof, a first-stage cyclone group feeding pump 16, a first-stage cyclone group 11, a first-stage magnetic separation feeding pulp distributor 12, a first-stage magnetic separator 9, a coarse pre-magnetic separation pulp distributor 13 and a coarse pre-magnetic separator 8, wherein the screening span 2, the buffer bin span 1 and the grinding span 17 are arranged in parallel and are sequentially connected, and is characterized in that: the coarse grain pre-magnetic separation ore feeding ore pulp distributor 13, the first section of low-intensity magnetic separation ore pulp distributor 12 and the first section of cyclone group 11 are sequentially arranged on a buffer bin platform 19 behind the tail wheel of the vibrating screen 4 ore feeding belt conveyor 3; a magnetic separation operation platform 20 is arranged below a buffer bin platform 19 of the buffer bin span 1, and the coarse grain pre-selection magnetic separator 8 and the primary magnetic separator 9 are sequentially arranged on the magnetic separation operation platform 20;
an undersize mine pump pool 5 is arranged on the foundation platform 10 below the vibrating screen 4.
The basic platform 10 of the buffer bin span 1 is provided with an undersize ore pump 6 which is connected with the undersize ore pump pool 5 through a connecting pipeline, and an electric hoist 7 for installation and maintenance is arranged below the magnetic separation operation platform 20 and at a position corresponding to the undersize ore pump 6.
The working process of the invention is as follows:
the ore pulp with the size of 0-3mm below the screen of the vibrating screen 4 is conveyed to a coarse-grain pre-magnetic separation ore pulp distributor 13 through an undersize ore pump 6, the ore pulp flows automatically to a coarse-grain pre-separation magnetic separator 8 through a pipeline, concentrate of the coarse-grain pre-separation magnetic separator 8 flows automatically to a feeding device 14 of a first-stage ball mill 15, a first-stage ball mill product is conveyed to a first-stage cyclone group 11 through a first-stage cyclone group feeding pump 16, sand sediment of the first-stage cyclone group 11 flows automatically to the first-stage ball mill 15 to form closed-circuit grinding, overflow of the first-stage cyclone group 11 flows automatically to a first-stage weak-magnetic separation ore pulp distributor 12, and ore pulp of the first-stage weak-magnetic separation ore pulp distributor 12 flows automatically to the first-stage weak-magnetic separator 9.
Concentrate of the first-stage weak magnetic separator 9 is fed into a ore dressing plant for subsequent operation, and tailings of the coarse grain pre-selection magnetic separator 8 and the first-stage weak magnetic separator 9 are final tailings for tailing discarding.
Claims (3)
1. The utility model provides a screening-magnetic separation-ore grinding-magnetic separation flow equipment arrangement system, includes basic platform, screening span, buffer bin span, ore grinding span, be located the buffer bin of buffer bin span upper portion, be located the buffer bin platform of buffer bin below, be located the buffer bin below and set up the band conveyer on the buffer bin platform, be located the band conveyer drive wheel end below screening span in the shale shaker, be located the ore grinding span in basic platform one section ball mill and feed arrangement thereof, one section swirler group feed pump, one section swirler group, one section weak magnetic separation give ore pulp distributor, one section magnet separator, coarse grain pre-magnetic separation ore pulp distributor and coarse grain pre-selection magnet separator, screening span, buffer bin span and ore grinding span parallel arrangement and link to each other in proper order, its characterized in that: the coarse grain pre-magnetic separation ore pulp distributor, the section of the weak magnetic separation ore feeding ore pulp distributor and the section of the cyclone group are sequentially arranged on a buffer bin platform behind a tail wheel of the belt conveyor; and a magnetic separation operation platform is arranged below the buffer bin platform of the buffer bin span, and the coarse grain pre-selection magnetic separator and the primary magnetic separator are sequentially arranged on the magnetic separation operation platform.
2. The screening-magnetic separation-grinding-magnetic separation process equipment arrangement system according to claim 1, wherein an undersize mine pump pool is arranged on a basic platform below the vibrating screen.
3. The screening-magnetic separation-grinding-magnetic separation process equipment arrangement system is characterized in that an undersize ore pump is arranged on a basic platform of the buffer bin span and is connected with the undersize ore pump pool through a connecting pipeline, and an electric hoist for installation and maintenance is arranged below the magnetic separation operation platform and at a position corresponding to the undersize ore pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711047231.8A CN107661814B (en) | 2017-10-31 | 2017-10-31 | Screening-magnetic separation-ore grinding-magnetic separation flow equipment arrangement system |
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| CN201711047231.8A CN107661814B (en) | 2017-10-31 | 2017-10-31 | Screening-magnetic separation-ore grinding-magnetic separation flow equipment arrangement system |
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| CN107661814A CN107661814A (en) | 2018-02-06 |
| CN107661814B true CN107661814B (en) | 2023-08-22 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108993756A (en) * | 2018-07-05 | 2018-12-14 | 鞍钢集团矿业有限公司 | Semi-Autogenous pre-selection-the stage grinding of magnetic iron ore-tower grinds magnetic separation process |
| CN110102403A (en) * | 2019-05-30 | 2019-08-09 | 中冶北方（大连）工程技术有限公司 | The pre- magnetic separation of coarse grain wet type and closed circuit grinding classification system and technique in HPGR process |
| CN116871048B (en) * | 2023-09-07 | 2023-11-03 | 潍坊国特矿山设备有限公司 | Circulation cooling high gradient magnetic separation screening machine |
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