CN101565249A - Mine tailing wastewater processing method - Google Patents
Mine tailing wastewater processing method Download PDFInfo
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- CN101565249A CN101565249A CNA2009103024670A CN200910302467A CN101565249A CN 101565249 A CN101565249 A CN 101565249A CN A2009103024670 A CNA2009103024670 A CN A2009103024670A CN 200910302467 A CN200910302467 A CN 200910302467A CN 101565249 A CN101565249 A CN 101565249A
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- mine tailing
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Abstract
The invention relates to a mine tailing wastewater processing method, belonging industrial waste water processing technology field. The method comprise following steps: a. settling the mine tailing wastewater to obtain the overflow and an underflow I with the solid content of 30-40%, conveying the underflow I to an tailing base, overflow sedimentation to obtain clear water I and a underflow II; b. settling the underflow I in the mine tailing base to obtain the mud and ore; c. settling the mud to obtain the concentrated mud and clear water II; d. combining the underflow II and concentrated mud, filtering to obtain the clear water III and filter residues. The clear water I, II, III are recycled in the subsequent production flow. The ore is used for constructing dam. The filter residues are removed for dry stack or burned for building bricks. The method can decrease the mud content in the mine tailing base when treating the mine tailing wastewater, ensure the wastewater in the base not to discharge and reduce the environmental pollution.
Description
Technical field
The invention belongs to the technology for treating industrial waste water field, particularly the treatment process of mine tailing wastewater.
Background technology
Low-grade v-ti magnetite mine tailing wastewater is the mixture of mine tailing and factory effluent, wherein contains a large amount of mud.Present domestic ore dressing industry adopts spissated mode to handle substantially, handles back clear water reuse, and mud is transported to the accumulation of mine tailing storehouse with ore in sand form by the slag stock pump and built a dam.Mud and ore in sand form are mixed together that piling up builds a dam can cause dam foundation unstability, simultaneously, in the reservoir area in the water body mud too much can cause water body natural subsidence speed slack-off, dam body is done beach length and is shortened, a large amount of mud will constitute major hidden danger to the safety in mine tailing storehouse at the reservoir area inner suspension, as this part mud is directly discharged, will cause bigger pollution to environment again.Therefore at present be badly in need of the technology of a kind of new processing mine tailing wastewater of research and development, reduce mud at the reservoir area amount of ram.
Summary of the invention
Technical problem to be solved by this invention provides a kind of treatment process of mine tailing wastewater, and this method can be opened ore deposit sand, water, mud separation in the mine tailing wastewater, and each component can be recycled respectively.
Concrete, described mine tailing mud treatment process may further comprise the steps:
A, mine tailing wastewater sedimentation obtain the underflow one of overflow and solid content 30～40%, and underflow one is transported to the mine tailing storehouse, obtain clear water one and underflow two after the overflow sedimentation;
The underflow one of b, step a obtains mud and ore in sand form respectively after the sedimentation of mine tailing storehouse;
Obtain dense mud and clear water two after c, the mud sedimentation;
D, merge underflow two and dense mud, by press filtration receive clear water three and filter residue.
Wherein, equipment was the swash plate concentration basin when step a concentrated, mine tailing wastewater natural subsidence in the concentration basin, the coarse particles ore in sand form sinks to the bottom and reaches sedimentation and concentrated purpose, general effluent concentration is below 3% (w/w), underflow one concentration is 30～40%, and overflow volume accounts for about 60%, and underflow one volume accounts for about 40%.
Step b mine tailing storehouse chats is husky different with the mud settling velocity, so both can separate, and ore deposit sand can be used for piling up and build a dam, and guarantees to pile up with coarse sand and builds a dam the assurance dam stability.
Step c precipitation step can be used mechanical assistance, by mechanical rotation mud is blown off, realizes separating of mud and water.
Equipment is diaphragm filter press during the steps d press filtration, and filter residue can be transported after the blowback discharging and do heap or fire building brick along with the increase of filter pressure forms filter cake gradually.
Step a, c, d receive clear water one, clear water two, clear water three can directly enter the recycle of subsequent production flow process.
Adopt the inventive method to handle mine tailing wastewater and can reduce mud content in the water body of mine tailing storehouse, accelerate the settling velocity of mine tailing storehouse waste water, prolong dam body and do beach length, strengthen mine tailing storehouse dam stability, guarantee mine tailing storehouse safety, and can also guarantee that waste water does not efflux in the storehouse, reduce pollution environment.
Description of drawings
Fig. 1 is a process flow diagram of the present invention.
Embodiment
The inventive method with the mine tailing that produces in the dressing Production Process and factory effluent after collecting, mixing, by the sedimentation of swash plate concentration basin, the underflow of concentration 30～40% is transported to the mine tailing storehouse once the slag stock pump, obtain clear water one and underflow two after all the other overflow sedimentations, clear water taps into into the Production Flow Chart recycle always.Underflow one obtains ore in sand form and mud (can assist by the hydrocyclone group of ￠ 350 during sedimentation and separate ore in sand form and mud) respectively in the sedimentation of mine tailing storehouse, and ore in sand form is piled up rapidly and built a dam.Mud then is delivered to 38 meters thickening pond by the slag stock pump and handles.Mud in 38 meters thickening pond obtains clear water two and dense mud after mechanical sedimentation is handled, clear water two directly enters the Production Flow Chart recycle.Dense mud and underflow two merge after pipeline self is gone into the sewage filter press station at the bottom of the pond, in filter press station, dense mud enters the filtration chamber of diaphragm filter press by the effect of fresh feed pump, solid particulate is intercepted by filter cloth and leaves filtration chamber's formation filter residue in, along with the increase formation filter cake of filter pressure, after the blowback discharging, transport the mine tailing storehouse to and do heap or fire building brick.Clear water three by filter cloth directly enters the Production Flow Chart recycle after pipeline is collected.
The invention will be further elaborated below in conjunction with embodiment.Embodiment only is used to illustrate the present invention, rather than limits the present invention by any way.
Embodiment 1
The 2500t mine tailing that ore dressing process produces is starched (mine tailing dry measure 400t, water content 2100t) after collecting, mixing, by the sedimentation of swash plate concentration basin, the underflow one that produces 1000t concentration 36% is (according to ore pulp proportion contrast table, adopt the weighing of concentration kettle to measure concentration), be transported to the mine tailing storehouse through the slag stock pump, obtain the underflow two of 1400t clear water one and 100t concentration 40% after all the other overflow sedimentations, clear water taps into into the Production Flow Chart recycle always.
Underflow one in the mine tailing storehouse hydrocyclone component by ￠ 350 from, obtain 330t ore in sand form and 670t mud respectively, ore in sand form accumulation is rapidly built a dam.Mud then is delivered to 38 meters thickening pond by the slag stock pump and handles.Mud in 38 meters thickening pond obtains the dense mud of 600t clear water two and 70t concentration 43% after machinery (as Hhigh-efficient thickener, drive rake by peripheral transmission mud is blown off) sedimentation is handled, clear water two directly enters the Production Flow Chart recycle.
Dense mud and underflow two merge after pipeline self is gone into the sewage filter press station at the bottom of the pond, enter the filtration chamber of diaphragm filter press by the effect of fresh feed pump, solid particulate is left in the filtration chamber by the filter cloth obstruct and obtains filter residue, increase formation filter cake along with filter pressure, obtain the 70t filter residue through the blowback discharging, can transport the mine tailing storehouse to and do heap or fire building brick.100t clear water three by filter cloth directly enters the Production Flow Chart recycle after pipeline is collected.
Embodiment 2
The 2000t mine tailing that ore dressing process produces is starched (mine tailing dry measure 320t, water content 1680t) after collecting, mixing, by the sedimentation of swash plate concentration basin, the underflow one that produces 800t concentration 35% is (on-the-spot according to ore pulp proportion contrast table, adopt the weighing of concentration kettle to measure concentration), be transported to the mine tailing storehouse through the slag stock pump, obtain the underflow two of 1100t clear water one and 100t concentration 40% after all the other overflow sedimentations, clear water taps into into the Production Flow Chart recycle always.
Underflow one in the mine tailing storehouse hydrocyclone component by ￠ 350 from, obtain 250t ore in sand form and 550t mud respectively, ore in sand form accumulation is rapidly built a dam.Mud then is delivered to 38 meters thickening pond by the slag stock pump and handles.Mud in 38 meters thickening pond obtains the dense mud of 480t clear water two and 70t concentration 43% after mechanical sedimentation is handled, clear water two directly enters the Production Flow Chart recycle.
Dense mud and underflow two merge after pipeline self is gone into the sewage filter press station at the bottom of the pond, enter the filtration chamber of diaphragm filter press by the effect of fresh feed pump, solid particulate is left in the filtration chamber by the filter cloth obstruct and obtains filter residue, increase formation filter cake along with filter pressure, obtain the 70t filter residue through the blowback discharging, can transport the mine tailing storehouse to and do heap or fire building brick.100t clear water three by filter cloth directly enters the Production Flow Chart recycle after pipeline is collected.
Embodiment 3
The 1500t mine tailing that ore dressing process produces is starched (mine tailing dry measure 240t, water content 1260t) after collecting, mixing, by the sedimentation of swash plate concentration basin, the underflow one that produces 500t concentration 40% is (on-the-spot according to ore pulp proportion contrast table, adopt the weighing of concentration kettle to measure concentration), be transported to the mine tailing storehouse through the slag stock pump, obtain the underflow two of 900t clear water one and 100t concentration 40% after all the other overflow sedimentations, clear water taps into into the Production Flow Chart recycle always.
Underflow one in the mine tailing storehouse hydrocyclone component by ￠ 350 from, obtain 180t ore in sand form and 320t mud respectively, ore in sand form accumulation is rapidly built a dam.Mud then is delivered to 38 meters thickening pond by the slag stock pump and handles.Mud in 38 meters thickening pond obtains the dense mud of 270t clear water two and 50t concentration 40% after mechanical sedimentation is handled, clear water two directly enters the Production Flow Chart recycle.
Dense mud and underflow two merge after pipeline self is gone into the sewage filter press station at the bottom of the pond, enter the filtration chamber of diaphragm filter press by the effect of fresh feed pump, solid particulate is left in the filtration chamber by the filter cloth obstruct and obtains filter residue, increase formation filter cake along with filter pressure, obtain the 60t filter residue through the blowback discharging, can transport the mine tailing storehouse to and do heap or fire building brick.90t clear water three by filter cloth directly enters the Production Flow Chart recycle after pipeline is collected.
Claims (3)
1. the treatment process of mine tailing wastewater is characterized in that: may further comprise the steps:
A, mine tailing wastewater sedimentation obtain the underflow one of overflow and solid content 30～40%, and underflow one is transported to the mine tailing storehouse, obtain clear water one and underflow two after the overflow sedimentation;
The underflow one of b, step a obtains mud and ore in sand form respectively after the sedimentation of mine tailing storehouse;
Obtain dense mud and clear water two after c, the mud sedimentation;
D, merge underflow two and dense mud, by press filtration receive clear water three and filter residue.
2. the treatment process of mine tailing wastewater according to claim 1 is characterized in that: equipment was the swash plate concentration basin when step a concentrated.
3. the treatment process of mine tailing wastewater according to claim 1, it is characterized in that: equipment is diaphragm filter press during the steps d press filtration.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009103024670A CN101565249B (en) | 2009-05-20 | 2009-05-20 | Mine tailing wastewater processing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009103024670A CN101565249B (en) | 2009-05-20 | 2009-05-20 | Mine tailing wastewater processing method |
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| CN101565249A true CN101565249A (en) | 2009-10-28 |
| CN101565249B CN101565249B (en) | 2011-11-23 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102399028A (en) * | 2010-09-16 | 2012-04-04 | 永城煤电控股集团有限公司 | Technology for treating coal slime water through secondary flow and settlement filtering centrifuge |
| CN104591442A (en) * | 2015-01-30 | 2015-05-06 | 河南理工大学 | Gold tailing multistage purification treatment technology |
| CN106311455A (en) * | 2016-08-25 | 2017-01-11 | 湖南顺源陶瓷材料有限公司 | Desliming process for nonmetal mineral separation |
| CN108178385A (en) * | 2018-03-24 | 2018-06-19 | 广东绿富域资源再生科技有限公司 | A kind of dregs of incinerator circular water treating system and processing method |
| CN112174386A (en) * | 2020-10-23 | 2021-01-05 | 王庆乐 | Metal mine tailing wastewater treatment process |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2003904009A0 (en) * | 2003-08-01 | 2003-08-14 | T-Systems Australia Pty Ltd | Relocatable reclaiming plant and process |
| CN101327384B (en) * | 2007-06-22 | 2012-12-12 | 江西铜业集团公司 | Tailings processing method for selecting copper from waste slag |
-
2009
- 2009-05-20 CN CN2009103024670A patent/CN101565249B/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102399028A (en) * | 2010-09-16 | 2012-04-04 | 永城煤电控股集团有限公司 | Technology for treating coal slime water through secondary flow and settlement filtering centrifuge |
| CN104591442A (en) * | 2015-01-30 | 2015-05-06 | 河南理工大学 | Gold tailing multistage purification treatment technology |
| CN106311455A (en) * | 2016-08-25 | 2017-01-11 | 湖南顺源陶瓷材料有限公司 | Desliming process for nonmetal mineral separation |
| CN108178385A (en) * | 2018-03-24 | 2018-06-19 | 广东绿富域资源再生科技有限公司 | A kind of dregs of incinerator circular water treating system and processing method |
| CN112174386A (en) * | 2020-10-23 | 2021-01-05 | 王庆乐 | Metal mine tailing wastewater treatment process |
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| Publication number | Publication date |
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| CN101565249B (en) | 2011-11-23 |
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