CN101837323A - Flotation method for lead-zinc oxide ore - Google Patents
Flotation method for lead-zinc oxide ore Download PDFInfo
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- CN101837323A CN101837323A CN 201010183902 CN201010183902A CN101837323A CN 101837323 A CN101837323 A CN 101837323A CN 201010183902 CN201010183902 CN 201010183902 CN 201010183902 A CN201010183902 A CN 201010183902A CN 101837323 A CN101837323 A CN 101837323A
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Abstract
The invention relates to a flotation method for lead-zinc oxide ore. Column-type flotation equipment (a flotation column) is applied to the floatation technical process of the lead-zinc oxide ore, and the following advantages of the column-type flotation equipment are fully utilized: the sorting effect on fine minerals is good; multiple work of the conventional flotation machine can be finished by one-stop operation; the column-type flotation equipment is applied to high foam output operation and the like; and one-stop flotation work can replace coarse scavenging work or coarse concentration work of the flotation machine; or the one-stop column flotation work can replace multiple work of middling ore recleaning. Therefore, the flotation method for the lead-zinc oxide ore can greatly shorten the flow of production technology, better recover fine valuable minerals, and solve the problem of unsmooth technical process due to high foam output, has stable production process, and can improve and stabilize the product quality. In the practical application, the flotation recovery of the zinc oxide is improved by over 5 percent, and the zinc oxide concentrate grade is improved by over 2 percent.
Description
Technical field
The present invention relates to the process of a kind of lead-zinc ore dressing of mineral manufacture field, relate to equipment and technology flow process in the lead-zinc oxide ore flotation removal process.
Background technology
The plumbous zinc resource reserves of China are abundant, occupy the second place of the world.But the plumbous zinc ore of China only utilizes high-grade oxide ore and a small amount of sulphide ore at present, and a large amount of low-grade lead-zinc stones can't utilize.Lead-zinc deposit Yunnan Lan Ping lead-zinc bed with China's maximum is an example, at present mainly utilized lead-zinc sulfide ore and a little zinc grade to be higher than 15% lead-zinc, then store up near the mine after a large amount of low-grade lead-zinc exploitations, caused a large amount of wastes of resource.Therefore, the sorting technology of raising the type lead-zinc is the most important approach that guarantees the plumbous zinc resource supply of China.
The hysteresis of sorting technology is the main cause that causes lead-zinc to be difficult to utilize.Because the contained mineral species of lead-zinc ore is more, ore structural relation complexity, the association component is very unstable, contain a large amount of clays and limonite, and solubility salt mineral, although therefore the research of lead-zinc ore dressing has been carried out a lot of years, still there are a lot of problems in the lead-zinc ore dressing.
Up to now, the technique of preparing of lead-zinc has been carried out the research work of many aspects, many achievements in research have also been obtained, some technology even finished commerical test, as lead-zinc oxide ore flotation: " sulfuration-amine method for floating ", this technology adopts xanthate class collecting agent or amine collector to carry out flotation by adding vulcanized sodium to the ore pulp processing of sizing mixing then.The method that the sulfuration back adopts xanthate class collecting agent to carry out flotation is only used the plumbous zinc ore of small amounts, and amine collector (being also referred to as the ammonium sulfide method) is all adopted in a large amount of lead-zinc ore dressings.Sludge reclaims the lead-zinc ore deposit to the flotation of ammonium sulfide method to be influenced very remarkable, the existence of sludge will cause a large amount of foams to produce, have a strong impact on assorting room, therefore usually to carry out removing of sludge, and desliming tends to reduce the rate of recovery of useful metal, as not desliming then ammonium sulfide method technology be difficult to realize stable operation, this also be present lead-zinc oxide ore flotation industrial application can not be successful one of key reason.Make a general survey of technological achievement and its problem that in industrial practical application, exists that lead-zinc oxide ore flotation research for many years obtains, conclude and get up to have the following aspects:
1, studying the lead-zinc oxide ore flotation technology that obtains all is feasible on principle;
2, the lead-zinc oxide ore flotation time is long, technological process is long, flowage structure is complicated;
3,, can not resolve the fine mineral flotation and reclaim problem, and lead-zinc entirely so produces a large amount of fine fraction mineral in the size degradation process because the process equipment that adopts is a common flotation equipment;
4, the flotation collector of oxide ore flotation employing mostly has stronger frothing capacity, and the floatation process foam volume is big, when flotation process is long, adds sludge content height, causes being difficult to guarantee in actual production process the unimpeded and process stabilization of flow process.
Flotation column is a kind of gas-liquid counter current equipment.Ore pulp middle and upper part from flotation column after dosing is stirred feeds in the post, air at the bottom of the post in bubble generator is dispersed into the laggard people's post of small bubble, bubble is distributed in the whole section of cylinder and rises along cylinder, and the bubble of rising and the ore particle of decline bump and mineralising.Hydrophobic ore particle adheres on the bubble, and together rises to froth bed with bubble, discharges via concentrate hopper; Hydrophilic ore particle is discharged as mine tailing by underflow under the gravity effect.Flotation column equipment has the following advantages:
1) froth bed thickness, bubble size and quantity etc. are easy to adjust; 2) flotation efficiency height, operation number of times and circulation ore deposit amount are few, process simplification; 3) ore particle and bubble counter current contacting have reduced the rate of climb of bubble population, are suitable for the recovery of fine mineral; 4) equipment is simple, and floor space is little, has saved capital expenditure; 5) energy consumption is low, and dosing is lower than traditional flotation device, has saved production cost.
Therefore, the lead-zinc oxide ore flotation technical research by for many years and produce actual, single suitability for industrialized production of realizing that lead-zinc is real of being difficult to from floatation process and regime of agent two aspects.Must also cooperate floating agent and flotation process structure could fundamentally solve the lead-zinc oxide ore flotation problem from process equipment.
The present invention is exactly on the basis to lead-zinc oxide ore flotation technology and medicament research, by adaptability and the big flotation froth energy advantage of column-type floatation equipment to the fine mineral flotation, flotation column equipment is introduced in the lead-zinc oxide ore flotation process structure, simplify flotation process, solved the flotation recovery problem and smooth, the production process instability problem of the flow process under the macrofoam energy of particulate lead-zinc thing well.
Summary of the invention
The objective of the invention is provides a kind of lack flow process, process stabilization, lead-zinc oxide ore flotation process that beneficiating efficiency is high for the lead-zinc oxide ore flotation technology in the industrializing implementation process.Its technical scheme principle comprises: the column-type floatation equipment that the present invention will have flotation fine mineral and adaptation macrofoam energy advantage is applied in the lead-zinc oxide ore flotation process structure, simplify the lead-zinc oxide ore flotation technological process with this, form the new technology method of lead-zinc oxide ore flotation, improved the beneficiating efficiency of single use conventional mechanical agitated flotation cell as the lead-zinc oxide ore flotation process equipment.
The column-type floatation equipment that is used for the short flow process floatation process use of lead-zinc among the present invention can be the general flotation column equipment that uses at other mineral floating at present, as: the horizontal fill-type microbubble floatation column that uses in the CPT flotation column that in the copper-sulphide ores flotation, acts on, the microfine Scheelite Flotation etc.
Flotation column equipment described in the present invention can use separately in lead-zinc oxide ore flotation technology and form single flotation column process flow process or form post machine joint process with common flotation equipment.
Column-type floatation equipment described in the present invention in floatation process, can be used for as the case may be floatation process any operation (comprise roughly select, selected, scan, chats selects again etc.).
Specific to the floatation process of a certain specific lead-zinc ore, following different flowage structure mode can be arranged:
1, single post floatation process: all adopt flotation column equipment to realize Flotation of Lead Oxide and Zinc Oxide Ores technology, be characterized in that flow process is short, the chats circulation realizes easily.According to ore characteristics and dressing product technical requirement, single flotation column process can have different compound modes in production practices: roughly select+scan mode; Roughly select+selected mode; Roughly select+scan+selected mode.Fig. 1 is seen in its technological process.
2, post machine process integration: post machine process integration is equivalent to keep the technology mode of one or two operation of flotation device with the Partial Jobs in the flotation column equipment replacement flotation device technology.Comprise: flotation column roughly selects+flotation column is selected+flotation device scans: and flotation column roughly selects+and flotation column scans+and flotation device is selected; Flotation device roughly selects+and flotation device is selected+flotation device scans+and flotation column selects again.According to the production concrete condition, the coarse scan that flotation column can replace the flotation device technical process is elected to be industry, or thick selected operation, or chats is elected to be industry etc. again, and it is simple to form technology, the lead-zinc oxide ore flotation technology that flow process is unimpeded.Its concrete process combination mode is planted and is seen Fig. 2.
Advantage of the present invention and good effect:
The present invention introduces the lead-zinc oxide ore flotation technical process with column-type floatation equipment, form a kind of lack flow process, high efficiency, the reliable and stable lead-zinc oxide ore flotation process of process operation, solved the medium-term and long-term technical problem that exists of lead-zinc oxide ore flotation research and production practices: foam volume is big, chats circulation difficulty, flow process is not smooth, produces unstable.Smooth implementation forms the through engineering approaches technology not only to make the lead-zinc oxide ore flotation technology be able to aborning, and after flotation column equipment uses in lead-zinc oxide ore flotation, compare with conventional mechanical agitation type flotation machine technology, zinc oxide concentrate grade and zinc oxide flotation recovery rate all are significantly improved, floatation process is highly stable, is easy to control.
1, a flotation column operation can be finished flotation device three times or above operation, can simplify the technological process of production;
2, flotation column equipment adapts to the Flotation of Lead Oxide and Zinc Oxide Ores characteristics, and production process is easy to control, constant product quality;
3, flotation column production process technology process is simplified greatly, is easy to realize producing stable control, and technical process water, electricity, reagent consumption reduce, and can reduce production costs greatly.
The present invention is further described below in conjunction with embodiment, and unrestricted the present invention.
Description of drawings
The single flotation column process engineering philosophy of Fig. 1 the present invention process chart;
Fig. 2 post machine of the present invention process integration engineering philosophy process chart.
The specific embodiment
The present invention is further described below in conjunction with embodiment, and unrestricted the present invention.
Embodiment 1
Post machine process integration chats selects flow process again, principle scheme flow chart such as Fig. 2 (c), the chats that carries out at the low-grade lead-zinc of Yunnan Lan Ping selects again, flotation column one-stop operation replaced three subjobs that the flotation device chats selects again (thick, smart, sweep, 8 flotation devices), comparative test result such as table 1.
Table 1 chats selects the existing flotation device comparing result of flotation column again
Embodiment 2
Post machine process integration, principle scheme flow chart such as Fig. 2 (a), the coarse scan that replaces flotation device with flotation column is elected to be industry, and flotation device is made selected formation post machine process integration, handles the low-grade lead-zinc of Yunnan Lan Ping, with former flotation device technology comparative result such as table 2.
Table 2 post machine process integration embodiment 2 results
Embodiment 3
Post machine process integration, principle scheme flow chart such as Fig. 2 (b), the coarse scan that replaces flotation device with flotation column is elected to be industry, and flotation device is made selected formation post machine process integration, handles the low-grade lead-zinc of Yunnan Lan Ping, with former flotation device technology comparative result such as table 3.
Table 3 post machine process integration embodiment 3 results
Embodiment 4
Single flotation column process, principle scheme flow chart such as Fig. 1 (a) handle Xinjiang sulphur-oxygen type mixed lead zinc ore, result such as table 4.
Table 4 Xinjiang lead-zinc result of the test
Embodiment 5
Single flotation column process, principle scheme flow chart such as Fig. 1 (b) handle Algerian Sai Tifu mixed type lead-zinc, result such as table 5.
The Algerian Sai Tifu lead-zinc of table 5 result of the test
Embodiment 6
Single flotation column process, principle scheme flow chart such as Fig. 1 (c) handle the Tibet lead-zinc, result such as table 6.
Table 6 Tibet lead-zinc oxide ore flotation result of the test
Claims (3)
1. a Flotation of Lead Oxide and Zinc Oxide Ores method is characterized in that: column-type floatation equipment is applied in the Flotation of Lead Oxide and Zinc Oxide Ores process.
2. Flotation of Lead Oxide and Zinc Oxide Ores method according to claim 1 is characterized in that: column-type floatation equipment may be used on comprising and roughly selects, selected, scan or process that chats selects again.
3. Flotation of Lead Oxide and Zinc Oxide Ores method according to claim 1 and 2 is characterized in that: column-type floatation equipment can act on separately in the zinc oxide floatation process or form post machine combined process flow with flotation device equipment.
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| CN 201010183902 CN101837323A (en) | 2010-05-26 | 2010-05-26 | Flotation method for lead-zinc oxide ore |
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| CN 201010183902 CN101837323A (en) | 2010-05-26 | 2010-05-26 | Flotation method for lead-zinc oxide ore |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102343309A (en) * | 2011-10-19 | 2012-02-08 | 中国矿业大学 | Machine-column combined three-section floating equipment |
| CN102652927A (en) * | 2012-03-21 | 2012-09-05 | 南京银茂铅锌矿业有限公司 | Beneficiation method of iron pyrite in lead-zinc flotation tailings |
| WO2012167592A1 (en) * | 2011-06-10 | 2012-12-13 | 福建省龙岩龙能粉煤灰综合利用有限公司 | Coal ashes flotation process and flotation equipment |
| CN103934117A (en) * | 2014-05-07 | 2014-07-23 | 广西中金岭南矿业有限责任公司 | Technology for flotation of lead and zinc sulfide ores through inflatable floatation columns |
| CN105013618A (en) * | 2015-07-29 | 2015-11-04 | 昆明理工大学 | Heating floatation method for middling pulp in zinc oxide ore |
| CN105289851A (en) * | 2015-11-27 | 2016-02-03 | 杭州鑫磊矿业有限公司 | Production technology for lead and zinc floatation mineral powder |
| CN105797868A (en) * | 2016-04-27 | 2016-07-27 | 中国矿业大学 | Beneficiation method for recovering low-grade zinc oxide ore from lead-zinc ore flotation tailings |
| CN107890955A (en) * | 2017-11-06 | 2018-04-10 | 云南磷化集团有限公司 | A kind of and supporting short route method for floating of chemical plant installations |
| WO2023216690A1 (en) * | 2022-05-11 | 2023-11-16 | 中国矿业大学 | Whole size-fraction sorting pre-enrichment system and process for coal-series co-associated mineral gallium lithium |
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| JPH10156218A (en) * | 1996-11-28 | 1998-06-16 | Nikko Kinzoku Kk | Dressing of zinc ore |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012167592A1 (en) * | 2011-06-10 | 2012-12-13 | 福建省龙岩龙能粉煤灰综合利用有限公司 | Coal ashes flotation process and flotation equipment |
| CN102343309A (en) * | 2011-10-19 | 2012-02-08 | 中国矿业大学 | Machine-column combined three-section floating equipment |
| CN102652927A (en) * | 2012-03-21 | 2012-09-05 | 南京银茂铅锌矿业有限公司 | Beneficiation method of iron pyrite in lead-zinc flotation tailings |
| CN103934117A (en) * | 2014-05-07 | 2014-07-23 | 广西中金岭南矿业有限责任公司 | Technology for flotation of lead and zinc sulfide ores through inflatable floatation columns |
| CN103934117B (en) * | 2014-05-07 | 2016-09-07 | 广西中金岭南矿业有限责任公司 | The technique of pneumo type flotation post flotation Lead-zinc mine tailings |
| CN105013618A (en) * | 2015-07-29 | 2015-11-04 | 昆明理工大学 | Heating floatation method for middling pulp in zinc oxide ore |
| CN105289851A (en) * | 2015-11-27 | 2016-02-03 | 杭州鑫磊矿业有限公司 | Production technology for lead and zinc floatation mineral powder |
| CN105797868A (en) * | 2016-04-27 | 2016-07-27 | 中国矿业大学 | Beneficiation method for recovering low-grade zinc oxide ore from lead-zinc ore flotation tailings |
| CN107890955A (en) * | 2017-11-06 | 2018-04-10 | 云南磷化集团有限公司 | A kind of and supporting short route method for floating of chemical plant installations |
| WO2023216690A1 (en) * | 2022-05-11 | 2023-11-16 | 中国矿业大学 | Whole size-fraction sorting pre-enrichment system and process for coal-series co-associated mineral gallium lithium |
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Application publication date: 20100922 |