CN109158202B - Crushing-screening-washing process for high-mud high-water surface mixed hematite - Google Patents
Crushing-screening-washing process for high-mud high-water surface mixed hematite Download PDFInfo
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- CN109158202B CN109158202B CN201811010585.XA CN201811010585A CN109158202B CN 109158202 B CN109158202 B CN 109158202B CN 201811010585 A CN201811010585 A CN 201811010585A CN 109158202 B CN109158202 B CN 109158202B
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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
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C21/00—Disintegrating plant with or without drying of the material
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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
- B03B1/00—Conditioning for facilitating separation by altering physical properties of the matter to be treated
Abstract
The invention relates to a crushing-screening-washing process of high-mud high-water surface mixed hematite, which comprises the three-section crushing process of coarse crushing operation, intermediate crushing operation and fine crushing operation, wherein the mixed hematite with the iron grade of 30-35%, the slime content of 20-40% and the granularity of 0-750mm in a raw ore bin is fed into the coarse crushing operation, the intermediate crushing operation adopts a roller type sieving machine and a toothed roller crushing machine for sieving, desliming and crushing, then a rotary cylinder washer and a cylinder screen are adopted for washing, desliming and dry-wet separation, the intermediate crushing operation adopts a closed circuit of the intermediate crushing cone crusher and a dry-type double-layer vibrating screen to process products on the cylinder screen; undersize products of the cylindrical screen are subjected to two-section wet single-layer vibrating screen-cyclone unit-dewatering screen operation to obtain selected ore pulp; the fine crushing operation adopts a fine crushing cone crusher and a linear vibrating screen to obtain the grinding raw materials. The invention effectively solves the problem of mineral adhesion and blockage and greatly reduces energy consumption.
Description
Technical Field
The invention belongs to the technical field of iron ore dressing, and particularly relates to a crushing-screening-ore washing process for high-mud high-water surface mixed hematite.
Background
Hematite is widely distributed, and surface ores are thoroughly oxidized due to long-term contact with oxygen, and most of the surface ores are hematite, including hematite, false hematite, limonite and goethite. Most of surface hematites have long weathering erosion time, are softer, have large specific gravity of slime content, and generally can reach 20 to 40 percent. As the minerals are located on the earth surface, rainwater can permeate the earth surface mineral layer in rainy seasons, part of rainwater is absorbed by the slime, so that the water content of the minerals is high and generally reaches about 15%, and the hydrous slime is sticky, so that the hematite on the earth surface has the characteristics of high mud, high water and high viscosity. At present, a gyratory crusher and a jaw crusher are mostly adopted for coarse crushing of iron mines, and the ore discharge port of coarse crushing equipment is easily blocked by high-mud, high-water and high-viscosity minerals, so that production is influenced; similarly, if the coarsely crushed high-mud, high-water and high-viscosity minerals are directly fed to the subsequent crushing-dry screening operation, the medium-fine crusher and the screening equipment are blocked, so that the equipment operation rate of the whole system is greatly reduced, and the yield is greatly reduced. And for the high-mud ore, if a traditional crushing process is adopted, the iron-containing ore mud enters the ore grinding operation, which greatly increases the ore amount and energy consumption of ore grinding. Most of the surface hematite in the current iron mines has low grade, mostly between 30 percent and 35 percent, and is iron ore which needs to be ground and upgraded. At present because the ground surface hematite viscidity is high, in order to prevent that it from causing the viscidity jam to breakage, screening, and for arranging the material facility, the crushing technology of coarse crushing + semi autogenous grinding is adopted to most ore dressing plants, and this kind of technology has shortened broken flow for traditional coarse crushing + well garrulous + the broken technology in small, does not accord with the energy-conserving principle of many garrulous less grindings, and the energy consumption is higher and has increased the required medium consumption of semi autogenous grinding. Therefore, the anti-blocking energy-saving process for the surface hematite is needed to be developed, wherein the anti-blocking energy-saving process can effectively solve the problem of mineral adhesion blocking and can effectively save energy, and the surface hematite is low in grade, high in mud, high in water and high in viscosity.
Disclosure of Invention
The invention aims to provide an energy-saving crushing-screening-ore washing process for high-mud high-water surface mixed hematite, which can effectively solve the problem of mineral adhesion and blockage.
The purpose of the invention is realized by the following technical scheme:
the invention relates to a crushing-screening-ore washing process of muddy high water surface mixed hematite, which comprises the three-stage crushing process of feeding the mixed hematite with the iron grade of 30-35 percent, the slime content of 20-40 percent and the granularity of 0-750mm in a raw ore bin into coarse crushing operation, middle crushing operation and fine crushing operation through a heavy plate feeder, and is characterized in that,
the coarse crushing operation adopts a roller type sieving machine to carry out pre-sieving desliming, a gear roller crusher is adopted to carry out crushing, a rotary cylinder ore washer and a cylinder sieve are adopted to carry out ore washing desliming and dry-wet separation, products on the 150mm-36mm sieve of the cylinder sieve are fed into the intermediate crushing operation, products under the sieve with the granularity of 36 mm-0 mm of the cylinder sieve are fed into two sections of wet single-layer vibrating sieves, cyclone sets and dewatering sieves to obtain selected ore pulp;
the middle crushing operation adopts a middle crushing cone crusher-dry type double-layer vibrating screen closed circuit to process products on a cylindrical screen;
the fine crushing operation adopts a fine crushing cone crusher and a linear vibrating screen to process the oversize products of the two sections of wet single-layer vibrating screens and the intermediate products of the dry double-layer vibrating screens, so as to obtain the grinding raw materials.
The coarse crushing operation is to feed the mixed hematite with the granularity of 0-750mm into a roller type sieving machine, wherein the roller distance of the roller type sieving machine is 150 mm; feeding the oversize product of the roller type sieving machine into a double-tooth-roller crusher, combining the 150mm-0 product of the double-tooth-roller crusher and the 150mm-0 undersize product of the roller type sieving machine into a rotary cylindrical ore washer through a belt conveyor to carry out ore washing, desliming and dry-wet separation; the discharged material of the rotary drum ore washer is fed into a drum screen, and the dry oversize material of 150-36 mm of the drum screen is fed into a medium crushing bin through a belt conveyor and fed into a medium crushing cone crusher for medium crushing operation through a vibrating feeder at the lower part of the medium crushing bin.
The two sections of wet single-layer vibrating screens adopt a wet coarse grain single-layer vibrating screen and a wet fine grain single-layer vibrating screen, and the undersize product of the wet coarse grain single-layer vibrating screen, which is 8 mm-0 mm, is fed into the wet fine grain single-layer vibrating screen; undersize products of 2 mm-0 mm of the wet fine grain single-layer vibrating screen are fed into a cyclone group through an ore feeding pump pool and a slurry pump of the cyclone group, a dewatering screen enters continuous two-section dewatering and grading operation, coarse grain settled sand of the cyclone group is fed into a dewatering screen to carry out secondary dewatering and grading operation, and undersize products of the dewatering screen of 0.5 mm-0 mm return to the cyclone group to form a closed circuit; the yield of the cyclone is 30%, the fine-grained overflow product with the granularity of-200 meshes is 50% -60% is fed into an ore pulp concentration tank, the underflow of the ore pulp concentration tank is fed into a selected raw ore storage tank through a underflow pump to be used as the ore feeding for the subsequent magnetic separation operation, and the overflow of the ore pulp concentration tank is used as a circulating water circulating pump station.
The middle crushing operation is that 150mm-36mm dry oversize materials of the cylindrical screen 7 are fed into a middle crushing bin through a belt conveyor and fed into a middle crushing cone crusher of the middle crushing operation through a vibrating feeder at the lower part of the middle crushing bin, products of the middle crushing cone crusher are fed into a dry double-layer vibrating screen through the belt conveyor, and the dry double-layer vibrating screen and the 36mm oversize products return to the middle crushing bin through a belt conveyor to form closed crushing.
The fine crushing operation is that after an oversize product with the granularity of 36-8 mm of the wet-type coarse grain single-layer vibrating screen and an intermediate product with the granularity of 36-8 mm of the dry-type double-layer vibrating screen are combined and fed into a fine crushing bin I of the fine crushing operation through a belt conveyor, the fine crushing bin I is fed into a fine crushing cone crusher through the belt conveyor, and then fine crushing-screening closed-loop operation is carried out.
In the fine crushing-screening closed operation, ore discharge of a fine crushing cone crusher is fed into a linear vibrating screen through a fine crushing feeding bin II and a belt conveyor, oversize products of the linear vibrating screen return to a fine crushing feeding bin I, undersize products of 8 mm-0 mm of the linear vibrating screen, undersize products of 8 mm-0 mm of a dry type double-layer vibrating screen, oversize products of 8 mm-2 mm of a wet type fine particle single-layer vibrating screen and oversize products of 2 mm-0.5 mm of a dewatering screen 23 jointly form grinding raw materials for grinding operation with the yield of 8 mm-0 percent, the grinding raw materials are fed into a grinding raw material storage yard,
the ore grinding and collecting storage yard is provided with a plurality of discharge ports, the lower part of each discharge port is provided with a heavy plate feeder and a conveying belt, and the conveying belt is connected with a section of ore grinding system.
The invention has the advantages that:
1) compared with the traditional coarse crushing and semi-autogenous grinding process, the process crushing adopts the processes of coarse crushing, medium crushing and fine crushing, although the number of the crushing operation stages is increased, the process crushing conforms to the energy-saving principle of more crushing and less grinding, and the consumption of ore grinding media is reduced.
2) The process coarse crushing adopts the operation of the roller type sieving machine and the double-tooth roller crusher, the slime is discharged from the large-interval roll gap of the roller type sieving machine, the slime is prevented from being stuck and blocked in the subsequent coarse crushing operation, and the large-interval roll of the roller type sieving machine and the large-interval tooth of the double-tooth roller crusher can also eliminate the blockage of most of the slime with high viscosity and water content to equipment; the problem of blockage in coarse crushing operation is effectively solved.
3) The coarse crushed product is directly fed into ore washing operation, the undersize product of the ore washing is directly fed into the two sections of wet sieves, and the slime is fully washed into ore pulp through slime removal of the ore washing and the wet sieving, so that the slime cleaning operation of minerals is realized, the slime does not enter middle fine crushing and feeding and discharging operation, the blockage of the slime on equipment and feeding and discharging equipment is effectively avoided, and the operation rate of the whole system is ensured.
4) According to the process flow, the yield is 30%, the selected raw ore with the content of-200 meshes accounting for 70% is directly fed into the subsequent magnetic separation operation without primary grinding, so that the ore feeding amount of primary grinding is greatly reduced, and the ore grinding energy consumption is greatly reduced.
6) According to the process flow, the ore grinding storage yard is a conical storage yard, and the discharge port and the heavy plate feeder are adopted, so that the problems that the discharge port is not used for a long time and the material is hardened and blocked are solved, and the problem that the discharge port of the material pile is blocked can be effectively solved by the heavy plate feeder for forced discharge compared with the gravity discharge.
Drawings
FIG. 1 is a schematic view of the flow structure of the present invention.
Detailed Description
The following further describes the embodiments of the present invention with reference to the drawings.
As shown in fig. 1, the crushing-screening-washing process of the high-mud high-water surface mixed hematite comprises three-stage crushing processes of coarse crushing, intermediate crushing and fine crushing of the mixed hematite with 30-35% of iron grade, 20-40% of slime content and 0-750mm granularity in a raw ore bin 1 by a heavy plate feeder 2, wherein the mineral types comprise hematite, false hematite, limonite and goethite; it is characterized in that the preparation method is characterized in that,
the coarse crushing operation adopts a roller type sieving machine 3 to carry out pre-sieving desliming, adopts a toothed roller crusher 4 to carry out crushing, adopts a rotary cylinder ore washer 6 and a cylinder sieve 7 to carry out ore washing desliming and dry-wet separation, feeds products on the cylinder sieve 7 into a middle crushing operation, feeds undersize products with the granularity of 36 mm-0 mm of the cylinder sieve 7 into two sections of wet single-layer vibrating sieves, cyclone sets and dewatering sieves to obtain selected ore pulp;
the middle crushing operation adopts a middle crushing cone crusher 11-dry type double-layer vibrating screen 14 closed circuit to process products on a cylindrical screen 7;
the fine crushing operation adopts a fine crushing cone crusher 25 and a linear vibrating screen 27 to process the oversize products of the two sections of wet single-layer vibrating screens and the intermediate products of the dry double-layer vibrating screen 14 to obtain grinding raw materials.
The coarse crushing operation of the invention is to feed the mixed hematite with the granularity of 0-750mm into a roller type sieving machine 3, wherein the roller distance of the roller type sieving machine 3 is 150 mm; feeding the oversize product of the roller type sieving machine 3 into a double-tooth roller crusher 4, combining the 150mm-0 product of the double-tooth roller crusher 4 with the 150mm-0 undersize product of the roller type sieving machine 3, and feeding the combined product into a rotary type cylindrical ore washer 6 through a belt conveyor A5 to carry out ore washing, desliming and dry-wet separation; the discharged material of the rotary drum washer 6 is fed into a drum screen 7, the dry oversize material of 150mm-36mm of the drum screen 7 is fed into a medium crushing bin 9 through a belt conveyor B8, and is fed into a medium crushing cone crusher 11 of medium crushing operation through a vibration feeder 10 at the lower part of the medium crushing bin.
The two-section wet type single-layer vibrating screen adopts a wet type coarse grain single-layer vibrating screen 12 and a wet type fine grain single-layer vibrating screen 15, and a product below a sieve with the size of 8 mm-0 of the wet type coarse grain single-layer vibrating screen 12 is fed into the wet type fine grain single-layer vibrating screen 15; undersize products of 2 mm-0 mm of the wet fine grain single-layer vibrating screen 15 are fed into a cyclone group 17 through an ore feeding pump pool 20 and a slurry pump 19 of the cyclone group, a dewatering screen 18 enters continuous two-section dewatering and grading operation, coarse grain settled sand of the cyclone group 17 is fed into the dewatering screen 18 for secondary dewatering and grading operation, and undersize products of the dewatering screen of 0.5 mm-0 mm return to the ore feeding pump pool 20 of the cyclone group to form a closed circuit; the yield of the cyclone group 17 is 30%, the fine-grained overflow product with the granularity of-200 meshes 50% -60% is fed into an ore pulp concentration tank 30, the underflow of the ore pulp concentration tank is fed into a selected raw ore storage tank 32 through a underflow pump 31 to be used as the ore feeding for the subsequent magnetic separation operation, and the overflow of the ore pulp concentration tank 30 is used as a circulating water recycling pump station 21.
The middle crushing operation is that 150mm-36mm dry oversize materials of the cylindrical screen 7 are fed into a middle crushing bin 9 through a belt conveyor B8 and fed into a middle crushing cone crusher 11 of the middle crushing operation through a vibrating feeder 10 at the lower part of the middle crushing cone crusher, products of the middle crushing cone crusher 11 are fed into a dry double-layer vibrating screen 14 through a belt conveyor C16, and the dry double-layer vibrating screen plus 36mm oversize products return to the middle crushing bin 9 through an adhesive tape machine 13 to form closed crushing.
The fine crushing operation is that after an oversize product with the granularity of 36 mm-8 mm of a wet-type coarse grain single-layer vibrating screen 12 and an intermediate product with the granularity of 36 mm-8 mm of a dry-type double-layer vibrating screen 14 are combined and fed into a fine crushing feeding bin I24 of the fine crushing operation through a belt conveyor E23, the fine crushing feeding bin is fed into a fine crushing conical crusher 25 through a belt conveyor to enter a fine crushing-screening closed-loop operation.
The fine crushing-screening closed-loop operation is that ore discharge of a fine crushing cone crusher 25 is fed into a linear vibrating screen 27 through a fine crushing feeding bin II 26 and a belt conveyor, oversize products of the linear vibrating screen 27 are returned to a fine crushing feeding bin I24, undersize products of 8 mm-0 mm of the linear vibrating screen 27, undersize products of 8 mm-0 mm of a dry double-layer vibrating screen 14, oversize products of 8 mm-2 mm of a wet fine particle single-layer vibrating screen 15 and oversize products of 2 mm-0.5 mm of a dewatering screen 18 form grinding raw materials of grinding operation of 8 mm-0 with the yield of 70%, and the grinding raw materials are fed into a grinding raw material storage yard through a belt conveyor D22 and a powder storage yard belt conveyor 28.
The process crushing adopts the processes of coarse crushing, medium crushing and fine crushing, and compared with the traditional process of coarse crushing and semi-autogenous grinding, although the number of the crushing operation stages is lengthened, the process crushing conforms to the energy-saving principle of more crushing and less grinding, and the consumption of ore grinding media is reduced.
The ore grinding and collecting storage yard is provided with a plurality of discharge ports, the lower part of the discharge ports is provided with a heavy plate feeder 29 and a conveying belt 33, and the conveying belt 33 is connected with a first-stage ore grinding system. The ore grinding storage yard is a conical storage yard, and the discharge ports and the heavy plate feeder 29 are adopted, so that the problems that the discharge ports are not used for a long time and the materials are hardened and blocked are solved, and the problem that the discharge ports of the material piles are blocked can be effectively solved by the heavy plate feeder through forced discharge compared with self-flowing discharge.
Claims (7)
1. A crushing-screening-ore washing process of high-mud high-water surface mixed hematite comprises the three-stage crushing process of coarse crushing operation, middle crushing operation and fine crushing operation of mixed hematite with 30-35% of iron grade, 20-40% of slime content and 0-750mm particle size in a raw ore bin through a heavy plate feeder,
the coarse crushing operation adopts a roller type sieving machine to carry out pre-sieving desliming, a gear roller crusher is adopted to carry out crushing, a rotary cylinder ore washer and a cylinder sieve are adopted to carry out ore washing desliming and dry-wet separation, products on the 150mm-36mm sieve of the cylinder sieve are fed into the intermediate crushing operation, products under the sieve with the granularity of 36 mm-0 mm of the cylinder sieve are fed into two sections of wet single-layer vibrating sieves, cyclone sets and dewatering sieves to obtain selected ore pulp;
the middle crushing operation adopts a middle crushing cone crusher-dry type double-layer vibrating screen closed circuit to process products on a cylindrical screen;
the fine crushing operation adopts a fine crushing cone crusher and a linear vibrating screen to process the oversize products of the two sections of wet single-layer vibrating screens and the intermediate products of the dry double-layer vibrating screens, so as to obtain the grinding raw materials.
2. The crushing-screening-washing process of the high-mud high-water surface mixed hematite according to claim 1, wherein the coarse crushing operation is to feed the mixed hematite with the particle size of 0-750mm into a roller type screening machine, and the roller spacing of the roller type screening machine is 150 mm; feeding the oversize product of the roller type sieving machine into a double-tooth-roller crusher, combining the 150mm-0 product of the double-tooth-roller crusher and the 150mm-0 undersize product of the roller type sieving machine into a rotary cylindrical ore washer through a belt conveyor A to carry out ore washing, desliming and dry-wet separation; the discharged material of the rotary cylinder ore washer is fed into a cylinder screen, and the dry-type oversize material of 150-36 mm of the cylinder screen is fed into a medium crushing bin through a belt conveyor B and is fed into a medium crushing cone crusher for medium crushing operation through a vibrating feeder at the lower part of the medium crushing cone crusher.
3. The crushing-screening-washing process of the high-mud high-water surface mixed hematite according to claim 1, wherein the two sections of wet single-layer vibrating screens are wet coarse single-layer vibrating screens and wet fine single-layer vibrating screens, and the undersize product of the wet coarse single-layer vibrating screens, which is 8mm to 0mm, is fed into the wet fine single-layer vibrating screens; feeding undersize products of 2 mm-0 mm of the wet fine grain single-layer vibrating screen into a cyclone group through an ore feeding pump pool and a slurry pump of the cyclone group, feeding a dewatering screen into a continuous two-section dewatering and grading operation, feeding coarse grains and settled sands of the cyclone group into a dewatering screen for secondary dewatering and grading operation, and returning undersize products of the dewatering screen of 0.5 mm-0 mm into the ore feeding pump pool of the cyclone group to form a closed circuit; the yield of the cyclone is 30%, the fine-grained overflow product with the granularity of-200 meshes is 50% -60% is fed into an ore pulp concentration tank, the underflow of the ore pulp concentration tank is fed into a selected raw ore storage tank through a underflow pump to be used as the ore feeding for the subsequent magnetic separation operation, and the overflow of the ore pulp concentration tank is used as a circulating water circulating pump station.
4. The crushing-screening-ore washing process of the high-mud high-water surface mixed hematite as claimed in claim 1, wherein the intermediate crushing operation is to feed 150mm to 36mm dry oversize materials of a cylindrical screen into an intermediate crushing bin through a belt conveyor B and feed the intermediate crushing bin into an intermediate crushing cone crusher of the intermediate crushing operation through a vibration feeder at the lower part of the intermediate crushing bin, the product of the intermediate crushing cone crusher is fed into a dry double-layer vibration screen through a belt conveyor C, and the dry double-layer vibration screen and the 36mm oversize products are returned to the intermediate crushing bin through a belt conveyor to form closed-circuit crushing.
5. The crushing-screening-ore washing process of the high-mud high-water surface mixed hematite as claimed in claim 1, wherein the fine crushing operation is carried out by combining oversize products with the granularity of 36 mm-8 mm of a wet coarse grain single-layer vibrating screen and intermediate products with the granularity of 36 mm-8 mm of a dry double-layer vibrating screen into a fine crushing feeding bin I of the fine crushing operation through a belt conveyor E, and then feeding the products into a fine crushing cone crusher through the belt conveyor E to enter a fine crushing-screening closed-loop operation.
6. The crushing-screening-ore washing process of the high-mud high-water surface mixed hematite as claimed in claim 5, wherein the fine crushing-screening closed circuit operation is to feed the ore discharge of the fine crushing cone crusher into the linear vibrating screen through the fine crushing feeding bin II and the belt conveyor, the oversize product of the linear vibrating screen returns to the fine crushing feeding bin I, the undersize product of the linear vibrating screen with the size of 8 mm-0, the undersize product of the dry double-layer vibrating screen with the size of 8 mm-0 mm, the oversize product of the wet fine single-layer vibrating screen with the size of 8 mm-2 mm and the oversize product of the dewatering screen with the size of 2 mm-0.5 mm together form the grinding raw material for the grinding operation with the yield of 70%, and the grinding raw material is fed into the grinding raw material storage yard.
7. The crushing-screening-washing process of the high-mud high-water surface-mixed hematite as claimed in claim 6, wherein a plurality of discharge ports are provided at the ore feeding and grinding aggregate yard, and a heavy duty slat feeder and a conveyor belt are provided at the lower part of the plurality of discharge ports, and the conveyor belt is connected with a first-stage ore grinding system.
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6414131A (en) * | 1987-07-07 | 1989-01-18 | Mitsubishi Mining & Cement Co | Treating method for limestone |
| CN101767054A (en) * | 2008-12-30 | 2010-07-07 | 厦门紫金矿冶技术有限公司 | Method for crushing high mud content adhesive material |
| CN102085491A (en) * | 2009-12-08 | 2011-06-08 | 鞍钢集团矿业公司 | New process with four sections of crushing and two times of closed-loop screening for crushing ores through high-pressure roller mill |
| CN102179284A (en) * | 2011-01-26 | 2011-09-14 | 重钢西昌矿业有限公司 | Method for crushing iron ore |
| CN102247925A (en) * | 2011-05-19 | 2011-11-23 | 成都利君实业股份有限公司 | Flotation method of nonferrous metal ores |
| CN102259094A (en) * | 2010-12-07 | 2011-11-30 | 鞍钢集团矿业公司 | Prescreening-crushing-screening examining process for lean hematite |
| CN103285977A (en) * | 2013-06-13 | 2013-09-11 | 鞍钢集团矿业公司 | Desliming process before grinding |
| CN107051695A (en) * | 2017-05-08 | 2017-08-18 | 玉溪大红山矿业有限公司 | A kind of efficient ore reduction technique and its crushing system |
-
2018
- 2018-08-31 CN CN201811010585.XA patent/CN109158202B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6414131A (en) * | 1987-07-07 | 1989-01-18 | Mitsubishi Mining & Cement Co | Treating method for limestone |
| CN101767054A (en) * | 2008-12-30 | 2010-07-07 | 厦门紫金矿冶技术有限公司 | Method for crushing high mud content adhesive material |
| CN102085491A (en) * | 2009-12-08 | 2011-06-08 | 鞍钢集团矿业公司 | New process with four sections of crushing and two times of closed-loop screening for crushing ores through high-pressure roller mill |
| CN102259094A (en) * | 2010-12-07 | 2011-11-30 | 鞍钢集团矿业公司 | Prescreening-crushing-screening examining process for lean hematite |
| CN102179284A (en) * | 2011-01-26 | 2011-09-14 | 重钢西昌矿业有限公司 | Method for crushing iron ore |
| CN102247925A (en) * | 2011-05-19 | 2011-11-23 | 成都利君实业股份有限公司 | Flotation method of nonferrous metal ores |
| CN103285977A (en) * | 2013-06-13 | 2013-09-11 | 鞍钢集团矿业公司 | Desliming process before grinding |
| CN107051695A (en) * | 2017-05-08 | 2017-08-18 | 玉溪大红山矿业有限公司 | A kind of efficient ore reduction technique and its crushing system |
Non-Patent Citations (2)
| Title |
|---|
| 改造新工艺 提高铁精矿质量;罗文斌;《矿业快报》;20061231;第60-61页 * |
| 高压辊磨机在矿物加工领域的应用;刘建远;《金属矿山》;20100630;第1-5页 * |
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