CN106076603B - The resource utilization of manganese ore mud utilizes method and apparatus - Google Patents
The resource utilization of manganese ore mud utilizes method and apparatus Download PDFInfo
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- CN106076603B CN106076603B CN201610580217.3A CN201610580217A CN106076603B CN 106076603 B CN106076603 B CN 106076603B CN 201610580217 A CN201610580217 A CN 201610580217A CN 106076603 B CN106076603 B CN 106076603B
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- manganese
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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
- 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
- B03C1/10—Magnetic separation acting directly on the substance being separated with cylindrical material carriers
- B03C1/14—Magnetic separation acting directly on the substance being separated with cylindrical material carriers with non-movable magnets
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- Manufacture And Refinement Of Metals (AREA)
- Treatment Of Sludge (AREA)
Abstract
The present invention provides a kind of resource utilizations of manganese ore mud to utilize method and apparatus, it is characterised in that：Using full automatic recycling processing method and equipment, including using mud pit（1）, Spiral classfier（2）, manganese slurry accumulator tank（3）, can crush manganese ore mud manganese slurry crusher（4）, the electromagnetic separator of subtle manganese particle can be magneticly elected（5）, concentration manganese ore slurry dense tower（6）, filter press（7）And press drier（8）Etc. equipment, water content is more than manganese ore mud that 80%, manganese content is 6 10% by screening, electromagnetic separation, dense, press filtration and the processes such as press dry, it obtains water content and is less than 10%, containing the manganese ore mud that manganese content is more than 20%, manganese resource of tailings is made to obtain abundant, rational utilization, it economizes the land resource, the comprehensive reutilization value of manganese ore mud is improved, substantially carries out the zero-emission of manganese tailing.
Description
Technical field
The present invention relates to the utilization technology fields of mineral waste, and in particular to a kind of resource utilization profit of manganese ore mud
Use method and apparatus.
Background technology
Manganese is one of important foundation raw material of the national economic development, is had to the steel industry for being related to National Industrial lifeblood
The demand of " no manganese not Cheng Gang ".Manganese and its compound application field are extensive, from basic body trace element, feed addictive to
Alloy material, battery material of new and high technology etc., demand is increasing with the development of society, and the utilization of manganese is to national economy
Development play important facilitation.
Existing manganese ore production procedure is：1st, manganese ore source sludge exploitation；2nd, exploitation sludge entrucking is transported to washup
Place；3rd, it is washing manganese place outfit stacking manganese ore mud and is washing manganese platform, and manganese mud hydraulic giant is manually sent into manganese mud log washer, it is raw
Output manganese product；4th, tailings mud library need to be pumped into or flow directly into sand by washing the remaining tail manganese ore muddy water of manganese.This technique is not
It is enough：Manganese ore mud annual emissions are more than 2,000,000 tons in manganese ore process, and manganese content is 6-10% in manganese ore mud, utilization rate pole
It is low.For a long time, comprehensive, effective utilization ways are not found to the processing of manganese slag, substantially using accumulation or are filled out
The mode buried.The land resource amount occupied as a result, increases year by year, polluted underground water source, and mineral resources waste is serious, production cost
Rise year by year.
And China is that main promoter manganese state and manganese ore processing state, manganese ore reserves occupy the 7th, the world in the world, manganese ore
Also position is at the forefront in the world for working ability, but long-term existence that lean ore is more, contradiction of rich ore critical shortage.The explored manganese ore in China
Stone is mainly manganese carbonate and manganese oxide ore, wherein, manganese oxide ore accounts for the 24% of gross reserves, and average manganese grade is only on 20% left side
The right side, in order to meet market needs, China still needs to a certain amount of rich manganese ore of import every year.Therefore, for the comprehensive of poor manganese ore resource
It is to solve the key point of my manganese ore self-sufficiency and promotion manganese industry development to close evaluation and exploration technology and equipment.
Invention content
The present invention proposes a kind of resource utilization of manganese ore mud using method and apparatus, and water content is more than by the present invention
80%th, the manganese ore mud that manganese content is 6-10% by screening, electromagnetic separation, dense, press filtration and the processes such as press dry, and obtains water content and is less than
10%th, containing the manganese ore mud that manganese content is more than 20%, manganese resource of tailings is made to obtain abundant, rational utilization, economizes the land resource, carries
The comprehensive reutilization value of high manganese ore mud, substantially carries out the zero-emission of manganese tailing.
The invention is realized in this way：
A kind of resource utilization of manganese ore mud utilizes method, it is characterised in that：Using full automatic recycling processing method, packet
It includes screening, electromagnetic separation, dense, press filtration and press dry, step is as follows：
（1）Screening：The water content generated during washup is more than 80%, manganese content and is discharged into mud pit for 6-10% manganese ore mud
In, then waste manganese mud mud is extracted into from mud pit in Spiral classfier with slush pump and is sieved, screen out the manganese below 50 mesh
Sludge is sent directly into next electromagnetic separation process, and manganese ore mud more than 50 mesh, which is first sent into breaking machine, to be crushed, and is re-fed into electromagnetism
Machine is selected to carry out electromagnetic separation；
（2）Electromagnetic separation：The manganese ore mud transported up from mud pit first falls large granular impurity with screen filtration, then manganese ore
After mud enters electromagnetic separator, magnetic manganese ore mud is selected by the high intensity magnetic separation of electromagnetic separator, is removed non-magnetic in manganese ore mud
Property substance, the namagnetic substance is sand, fibre object, plastics or/and rubber, the sludge that electromagnetic separation generates is discharged to mud pit
In, the waste water of generation is discharged to treatment tank, returns in washup and recycles after sewage disposal；
（3）It is dense：Will be dense by being carried out in the dense tower of manganese ore mud ore pulp feeding of electromagnetic separation, it is 40% to obtain water content
Following manganese ore mud, the water and sludge generated during dense are sent back in mud pit；
（4）Press filtration：Further press filtration is carried out by being sent into filter press by dense manganese ore mud, it is 20% to obtain water content
Following manganese ore mud；
（5）It press dry：Manganese ore mud after press filtration is sent into press drier and is further pressed dry, water content is obtained and is less than
10%, manganese content is more than more than 20% manganese ore mud.
The resource utilization of manganese ore mud of the present invention utilizes the equipment that method uses, including mud pit, Spiral classfier, manganese slurry
Accumulator tank, the electromagnetic separator that can magneticly elect subtle manganese particle, concentrates manganese ore slurry at the manganese slurry crusher that can crush manganese ore mud
Dense tower, filter press and press drier, it is characterised in that：The mud pit, Spiral classfier, manganese slurry accumulator tank, manganese slurry are broken
Mechanical, electrical magnetic separator, dense tower, filter press and press drier are sequentially connected by conveying device；The mud pit passes through mud tube
Road is connect with Spiral classfier；The front end of Spiral classfier is starched crusher with manganese by elevator belt and is connect, and rear end passes through mud tube
Road is connect with manganese slurry accumulator tank；The discharge port of the manganese slurry crusher is starched accumulator tank with manganese by hydraulic fill pipeline and is connect, manganese slurry
The discharge port of accumulator tank is connect by hydraulic fill pipeline with electromagnetic separator.
Further preferably, it is equipped with slush pump on the mud pit and manganese slurry accumulator tank.
Further preferably, the Spiral classfier is equipped with motor.
Further preferably, manganese slurry crusher includes feed inlet, breaker roll, drive bearing and discharge port, described
Feed inlet is set on the top of manganese slurry crusher, and discharge port is set on the bottom of manganese slurry crusher, and the breaker roll is mounted on transmission
On bearing, breaker roll can be rotated along drive bearing.
Further preferably, the electromagnetic separator includes cylinder, manganese slurry feed inlet, ore deposit sparge pipe, magnet piece, nonmagnetics
Outlet, magnetic material outlet, cutting plate and mineral water pipe is unloaded, the magnet piece is set in cylinder, and manganese slurry feed inlet is set on circle
The side of cylinder, magnetic material outlet are set on the opposite side of cylinder, and the nonmagnetics outlet is set on the bottom of cylinder, described
Manganese slurry feed inlet be equipped with ore deposit sparge pipe, the magnetic material outlet be equipped with cutting plate, the top of the cutting plate
Equipped with unloading mineral water pipe.
The electromagnetic separator of the present invention, manganese ore mud is after manganese slurry feed inlet flows into groove body, in the flow work to ore deposit sparge pipe
Under, ore particle in loose condition (of surface) enter groove body to mining area.Effect in magnetic field, magnetic ore particle occur magnetic and gather and formed " magnetic group "
Or " magnetic linkage ", " magnetic group " or " magnetic linkage ", by magneticaction, moves in ore pulp to magnetic pole, and is attracted on cylinder.Due to magnetic
The polarity of pole is alternately arranged along cylinder direction of rotation, and fixed at work, and " magnetic group " or " magnetic linkage " are with circle
During cylinder rotation, since magnetic pole alternately generates magnetic stirring phenomenon, it is non magnetic to be mixed in gangue in " magnetic group " or " magnetic linkage " etc.
Mineral are split away off in stirring, and " the magnetic group " or " magnetic lotus " for being finally attracted on drum surface is concentrate.Concentrate turns with cylinder
To magnetic system edge magnetic force the weakest point, it is discharged into concentrate slot under the flushing flow action for unloading the ejection of mineral water pipe, it is non magnetic or weak
Magnetic mineral is left in ore pulp outside with ore pulp discharge slot, is tailing.
Compared with prior art, the present invention the substantive distinguishing features and significant progress of its protrusion are：
1st, water content is passed through screening, electromagnetic separation, dense, pressure by the present invention more than the manganese ore mud that 80%, manganese content is 6-10%
The processes such as filter and press dry, obtain water content less than 10%, containing the manganese ore mud that manganese content is more than 20%；Fundamentally solve manganese ore mud
Pollution problem to environment makes the resource that manganese ore produces obtain abundant, rational utilization, economizes the land resource, and improves manganese ore mud
Comprehensive reutilization is worth, and can not only realize turns waste into wealth, and also substantially carries out the zero-emission of manganese tailing.
2nd, the present invention chemical substance is not used to handle manganese ore mud, only with physical method to manganese ore mud at
Reason avoids with chemical substance the pollution on the environment in processing procedure, greatly reduces the processing cost of manganese ore mud, carry
The economic benefit of high manganese ore mud processing.
3rd, the present invention carries out strong magnetic separation using unique electromagnetic separator to the manganese ore mud of high-moisture so that manganese ore mud
The rate of recovery reaches more than 80%, and resource recycling rate is high, the remarkable in economical benefits of manganese ore mud processing.
Description of the drawings
Fig. 1 is that the resource utilization of manganese ore mud of the present invention utilizes the front view structure schematic diagram of equipment.
Fig. 2 is the front view structure schematic diagram of manganese slurry crusher 4 of the present invention.
Fig. 3 is the front view structure schematic diagram of electromagnetic separator 5 of the present invention.
Reference numeral title and number explanation：
Mud pit 1, Spiral classfier 2, manganese slurry accumulator tank 3, manganese slurry crusher 4, electromagnetic separator 5, dense tower 6, filter press
7th, press drier 8, slush pump 9, hydraulic fill pipeline 10, motor 11, elevator belt 12, feed inlet 41, breaker roll 42, drive bearing 43, go out
Material mouth 44, cylinder 51, manganese slurry feed inlet 52, ore deposit sparge pipe 53, magnet piece 54, nonmagnetics outlet 55, magnetic material outlet
56th, cutting plate 57, unload mineral water pipe 58.
Specific embodiment
The resource utilization of manganese ore mud of the present invention is further described using method and apparatus with reference to embodiments.
As described in Figure 1, the continuous biological dewatered equipment of high-moisture percentage organic solid waste of the invention, including mud pit 1, spiral
Screening machine 2, manganese slurry accumulator tank 3, manganese slurry crusher 4, electromagnetic separator 5, dense tower 6, filter press 7, press drier 8, slush pump 9, mud
Slurry pipeline 10, motor 11, elevator belt 12, feed inlet 41, breaker roll 42, drive bearing 43, discharge port 44, cylinder 51, manganese starch into
Material mouth 52, ore deposit sparge pipe 53, magnet piece 54, nonmagnetics outlet 55, magnetic material outlet 56, cutting plate 57 and unload mineral water pipe
58, the mud pit 1, Spiral classfier 2, manganese slurry accumulator tank 3, manganese slurry crusher 4, electromagnetic separator 5, dense tower 6, filter press
7 and press drier 8 be sequentially connected by conveying device；The mud pit 1 is connect by hydraulic fill pipeline 10 with Spiral classfier 2；
The front end of Spiral classfier 2 is starched crusher 4 with manganese by elevator belt 12 and is connect, and accumulator tank is starched in rear end by hydraulic fill pipeline 10 and manganese
3 connections；The discharge port of the manganese slurry crusher 4 is starched accumulator tank 3 with manganese by hydraulic fill pipeline 10 and is connect, manganese slurry accumulator tank 3
Discharge port is connect by hydraulic fill pipeline 10 with electromagnetic separator 5, and slush pump is equipped on the mud pit 1 and manganese slurry accumulator tank 3
9, the Spiral classfier 2 is equipped with motor 11.
As described in Figure 2, manganese slurry crusher 4 includes feed inlet 41, breaker roll 42, drive bearing 43 and discharge port
44, the feed inlet 41 is set on the top of manganese slurry crusher 4, and discharge port 44 is set on the bottom of manganese slurry crusher 4, and described is broken
Broken roller 42 is mounted on drive bearing 43, and breaker roll 42 can be rotated along drive bearing 43.
As described in Figure 3, the electromagnetic separator 5 include cylinder 51, manganese slurry feed inlet 52, ore deposit sparge pipe 53, magnet piece 54,
Nonmagnetics outlet 55, magnetic material outlet 56, cutting plate 57 and mineral water pipe 58 is unloaded, the magnet piece（54）Set on cylinder
In 51, manganese slurry feed inlet 52 is set on the side of cylinder 51, and magnetic material outlet 56 is set on the opposite side of cylinder 51, and described is non-magnetic
Property object outlet 55 be set on the bottom of cylinder 51, manganese slurry feed inlet 52 is equipped with ore deposit sparge pipe（53）, the magnetism
Object outlet 56 is equipped with cutting plate 57, and the top of the cutting plate 57, which is equipped with, unloads mineral water pipe 58.
Embodiment 1
（1）Screening：The water content generated during washup is more than 80%, manganese content and is discharged into mud pit for 6-10% manganese ore mud
In, then waste manganese mud mud is extracted into from mud pit in Spiral classfier with slush pump and is sieved, screen out the manganese below 50 mesh
Sludge is sent directly into next electromagnetic separation process, and manganese ore mud more than 50 mesh, which is first sent into breaking machine, to be crushed, and is re-fed into electromagnetism
Machine is selected to carry out electromagnetic separation；
（2）Electromagnetic separation：The manganese ore mud transported up from mud pit first falls large granular impurity with screen filtration, then manganese ore
After mud enters electromagnetic separator, magnetic manganese ore mud is selected by the high intensity magnetic separation of electromagnetic separator, is removed non-magnetic in manganese ore mud
Property substance, the namagnetic substance is sand, fibre object, plastics or/and rubber, the sludge that electromagnetic separation generates is discharged to mud pit
In, the waste water of generation is discharged to treatment tank, returns in washup and recycles after sewage disposal；
（3）It is dense：Will be dense by being carried out in the dense tower of manganese ore mud ore pulp feeding of electromagnetic separation, it is 40% to obtain water content
Following manganese ore mud, the water and sludge generated during dense are sent back in mud pit；
（4）Press filtration：Further press filtration is carried out by being sent into filter press by dense manganese ore mud, it is 20% to obtain water content
Following manganese ore mud；
（5）It press dry：Manganese ore mud after press filtration is sent into press drier and is further pressed dry, water content is obtained and is less than
10%, manganese content is more than more than 20% manganese ore mud.
Claims (6)
1. a kind of resource utilization of manganese ore mud utilizes method, it is characterised in that：Using full automatic recycling processing method, including
It screening, electromagnetic separation, dense, press filtration and press dry, step is as follows：
（1）Screening：The water content generated during washup is more than 80%, manganese content to be discharged into mud pit for 6-10% manganese ore mud,
Waste manganese mud mud is extracted into from mud pit in Spiral classfier with slush pump again and is sieved, screens out the manganese ore mud below 50 mesh
It is sent directly into next electromagnetic separation process, manganese ore mud more than 50 mesh, which is first sent into breaking machine, to be crushed, and is re-fed into electromagnetic separator
Carry out electromagnetic separation；
（2）Electromagnetic separation：The manganese ore mud transported up from mud pit first falls large granular impurity with screen filtration, then manganese ore mud into
After entering electromagnetic separator, magnetic manganese ore mud is selected by the high intensity magnetic separation of electromagnetic separator, removes the nonmagnetics in manganese ore mud
Matter, the namagnetic substance is sand, fibre object, plastics or/and rubber, the sludge that electromagnetic separation generates is discharged in mud pit,
The waste water of generation is discharged to treatment tank, returns in washup and recycles after sewage disposal；
（3）It is dense：Will be dense by being carried out in the dense tower of manganese ore mud ore pulp feeding of electromagnetic separation, it is less than 40% to obtain water content
Manganese ore mud, it is dense during generate water and sludge send back in mud pit；
（4）Press filtration：Further press filtration is carried out by being sent into filter press by dense manganese ore mud, it is less than 20% to obtain water content
Manganese ore mud；
（5）It press dry：Manganese ore mud after press filtration is sent into press drier and is further pressed dry, obtains water content less than 10%,
Manganese content is more than more than 20% manganese ore mud.
2. the resource utilization of manganese ore mud as described in claim 1 utilizes the equipment that method uses, including mud pit（1）, spiral shell
Revolve screening machine（2）, manganese slurry accumulator tank（3）, can crush manganese ore mud manganese slurry crusher（4）, subtle manganese particle can be magneticly elected
Electromagnetic separator（5）, concentration manganese ore slurry dense tower（6）, filter press（7）And press drier（8）, it is characterised in that：The mud
Stock tank（1）, Spiral classfier（2）, manganese slurry accumulator tank（3）, manganese slurry crusher（4）, electromagnetic separator（5）, dense tower（6）, press filtration
Machine（7）And press drier（8）It is sequentially connected by conveying device；The mud pit（1）Pass through hydraulic fill pipeline（10）With spiral screen
Extension set（2）Connection；Spiral classfier（2）Front end pass through elevator belt（12）Crusher is starched with manganese（4）Connection, rear end passes through mud
Pipeline（10）Accumulator tank is starched with manganese（3）Connection；The manganese slurry crusher（4）Discharge port pass through hydraulic fill pipeline（10）It is starched with manganese
Accumulator tank（3）Connection, manganese slurry accumulator tank（3）Discharge port pass through hydraulic fill pipeline（10）With electromagnetic separator（5）Connection.
3. the resource utilization of manganese ore mud according to claim 2 utilizes the equipment that method uses, it is characterised in that：It is described
Mud pit（1）And manganese slurry accumulator tank（3）On be equipped with slush pump（9）.
4. the resource utilization of manganese ore mud according to claim 2 utilizes the equipment that method uses, it is characterised in that：It is described
Spiral classfier（2）It is equipped with motor（11）.
5. the resource utilization of manganese ore mud according to claim 2 utilizes the equipment that method uses, it is characterised in that：It is described
Manganese slurry crusher（4）Including feed inlet（41）, breaker roll（42）, drive bearing（43）And discharge port（44）, the charging
Mouthful（41）Crusher is starched set on manganese（4）Top, discharge port（44）Crusher is starched set on manganese（4）Bottom, the breaker roll
（42）On drive bearing (43), breaker roll（42）It can be along drive bearing（43）Rotation.
6. the resource utilization of manganese ore mud according to claim 2 utilizes the equipment that method uses, it is characterised in that：It is described
Electromagnetic separator（5）Including cylinder（51）, manganese slurry feed inlet（52）, ore deposit sparge pipe（53）, magnet piece（54）, nonmagnetics discharge
Mouthful（55）, magnetic material outlet（56）, cutting plate（57）With unload mineral water pipe（58）, the magnet piece（54）Set on cylinder（51）
It is interior, manganese slurry feed inlet（52）Set on cylinder（51）Side, magnetic material outlet（56）Set on cylinder（51）Opposite side, it is described
Nonmagnetics outlet（55）Set on cylinder（51）Bottom, the manganese slurry feed inlet（52）It is equipped with ore deposit sparge pipe
（53）, the magnetic material outlet（56）It is equipped with cutting plate（57）, the cutting plate（57）Top be equipped with unload mineral water
Pipe（58）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610580217.3A CN106076603B (en) | 2016-07-22 | 2016-07-22 | The resource utilization of manganese ore mud utilizes method and apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610580217.3A CN106076603B (en) | 2016-07-22 | 2016-07-22 | The resource utilization of manganese ore mud utilizes method and apparatus |
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| Publication Number | Publication Date |
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| CN106076603A CN106076603A (en) | 2016-11-09 |
| CN106076603B true CN106076603B (en) | 2018-06-22 |
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| CN201610580217.3A Expired - Fee Related CN106076603B (en) | 2016-07-22 | 2016-07-22 | The resource utilization of manganese ore mud utilizes method and apparatus |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108452939A (en) * | 2017-12-05 | 2018-08-28 | 中信大锰矿业有限责任公司大新锰矿分公司 | The resource utilization of manganese ore mud utilizes equipment |
| CN108246489A (en) * | 2017-12-05 | 2018-07-06 | 中信大锰矿业有限责任公司大新锰矿分公司 | The resource utilization of manganese ore mud utilizes method |
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| CN86105860A (en) * | 1986-07-09 | 1988-02-03 | 中南工业大学 | Washup-flocculation-high gradient magnetic dressing process and washup equipment |
| CN102179298A (en) * | 2011-02-15 | 2011-09-14 | 中国科学院武汉岩土力学研究所 | Permanent magnet inner cylinder type polymetallic synchronous magnetic separator |
| RU2435646C1 (en) * | 2010-07-26 | 2011-12-10 | Анатолий Прокопьевич Коробейников | Method of processing manganese ores |
| CN104532010A (en) * | 2015-01-08 | 2015-04-22 | 劳淑仪 | Comprehensive manganese tailing utilization process |
-
2016
- 2016-07-22 CN CN201610580217.3A patent/CN106076603B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86105860A (en) * | 1986-07-09 | 1988-02-03 | 中南工业大学 | Washup-flocculation-high gradient magnetic dressing process and washup equipment |
| RU2435646C1 (en) * | 2010-07-26 | 2011-12-10 | Анатолий Прокопьевич Коробейников | Method of processing manganese ores |
| CN102179298A (en) * | 2011-02-15 | 2011-09-14 | 中国科学院武汉岩土力学研究所 | Permanent magnet inner cylinder type polymetallic synchronous magnetic separator |
| CN104532010A (en) * | 2015-01-08 | 2015-04-22 | 劳淑仪 | Comprehensive manganese tailing utilization process |
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| Title |
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| 湘潭锰矿碳酸锰矿泥回收系统试产简介;谭中坚;《中国锰业》;19891231(第6期);28-30 * |
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Effective date of registration: 20180622 Address after: 221000 Jiangsu Xuzhou liberation South Road China University of Mining and Technology science and Technology Park Xuzhou high tech entrepreneurship Service Center 508 Patentee after: XUZHOU JUXUAN HEAVY MACHINERY CO.,LTD. Address before: 230031 B-1014, 10 floor, business office building, Wo Ye garden, Shushan District, Hefei, Anhui. Patentee before: HEFEI WISDOM LOTUT INTELLECTUAL PROPERTY Co.,Ltd. |
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| 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: 20180622 Termination date: 20210722 |