CN107840424A - A kind of method of the efficient separate-recycling of lead-zinc metallogenic belt beneficiation wastewater - Google Patents

A kind of method of the efficient separate-recycling of lead-zinc metallogenic belt beneficiation wastewater Download PDF

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Publication number
CN107840424A
CN107840424A CN201711073367.6A CN201711073367A CN107840424A CN 107840424 A CN107840424 A CN 107840424A CN 201711073367 A CN201711073367 A CN 201711073367A CN 107840424 A CN107840424 A CN 107840424A
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CN
China
Prior art keywords
water
zinc
lead
overflow water
sewage disposal
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Pending
Application number
CN201711073367.6A
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Chinese (zh)
Inventor
缪建成
刘亚龙
胡继华
汤成龙
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NANJING YINMAO LEAD-ZINC MINE Co Ltd
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NANJING YINMAO LEAD-ZINC MINE Co Ltd
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Application filed by NANJING YINMAO LEAD-ZINC MINE Co Ltd filed Critical NANJING YINMAO LEAD-ZINC MINE Co Ltd
Priority to CN201711073367.6A priority Critical patent/CN107840424A/en
Publication of CN107840424A publication Critical patent/CN107840424A/en
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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/52Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5236Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
    • C02F1/5245Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents using basic salts, e.g. of aluminium and iron
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/52Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/54Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
    • C02F1/56Macromolecular compounds
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F2001/007Processes including a sedimentation step
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/10Nature of the water, waste water, sewage or sludge to be treated from quarries or from mining activities

Abstract

The invention discloses a kind of method of the efficient separate-recycling of lead-zinc metallogenic belt beneficiation wastewater, this method is segmentation concentration body stoste sub-prime direct reuse, a small amount of end water reasonable sanding fully recovering, sludge caused by sewage disposal system returns to production system comprehensive utilization, and the influence of harmful ion and medicament to each operation flotation atmosphere of flotation is greatly reduced in this method.The present invention has the characteristics that sewage load, reduction cost for wastewater treatment, saving beneficiation reagent, stable raising mineral processing index, recycling sludge, which is greatly reduced, to be utilized.

Description

A kind of method of the efficient separate-recycling of lead-zinc metallogenic belt beneficiation wastewater
Technical field
The invention belongs to beneficiation wastewater reuse field, is that a kind of lead-zinc metallogenic belt beneficiation wastewater efficiently divides specifically The method of matter reuse.
Background technology
It is increasingly tighter with environmental protection requirement, environmental requirement to beneficiation wastewater also more and more higher.Beneficiation wastewater will Qualified discharge is handled, not only intractability is big, and processing cost is very high, still has pollution to external environment condition.How golden lead zinc is The beneficiation wastewater of category ore deposit, which belongs to, relates to weight waste water, belongs to national severe management and control scope, many mines are not because reaching requirement, pollution environment And close.Lead-zinc metallogenic belt ore dressing is because the metal for needing to reclaim is more, and ore-dressing technique is complicated, technological process length, system production Raw water is more, waste component is more complicated, and reuse influence index is big, and intractability up to standard is big.
At present, the processing mode of beneficiation wastewater use is mainly:Caused waste water is fully entered at sewage in mineral processing production Reason system, processing backwater amount are big;Containing a variety of Residuals in beneficiation wastewater, sewage disposal needs to add certain medicament, And complex process;Sludge quantity caused by sewage disposal system is big, easily causes secondary pollution;The cost of whole beneficiation wastewater reuse compared with It is high.
The content of the invention
It is an object of the invention to provide a kind of method of the efficient separate-recycling of lead-zinc metallogenic belt beneficiation wastewater, this method was both The Residuals in original recycle-water can be efficiently utilized, reduce beneficiation reagent cost, stablizes improve mineral processing index to greatest extent; Wastewater treatment water is greatly decreased in and can, reduces cost for wastewater treatment;And waste water processes are simple, efficient;Sewage disposal is produced Raw recycling sludge utilizes, and this beneficiation wastewater reuse method does not produce new pollution.
The technical scheme is that:The method of the efficient separate-recycling of lead-zinc metallogenic belt beneficiation wastewater, segmentation concentration Body stoste sub-prime direct reuse, a small amount of end water reasonable sanding fully recovering, sludge caused by sewage disposal system return to life Production system comprehensively utilizes.
In the above method, raw ore concentration overflow water and lead concentrate concentrate overflow water direct reuse in ball grinder graded operation and choosing Lead exposed.Raw ore concentrates overflow water and lead concentrate concentration overflow water contains the medicament added in lead Beneficiation flowsheet, this two parts water Water quality is limpider, returns to ball grinder graded operation directly as lead stoste after natural sedimentation and selects lead silver operation.
In the above method, concentrating of zinc tailings overflow water and zinc concentrate concentration overflow water direct reuse are in selecting zinc operation and iron concentrate Foam brews water.Concentrating of zinc tailings overflow water and zinc concentrate concentration overflow water belong to high buck, contain in water and select what zinc flow was added Medicament, and water quality is limpider, is returned directly as zinc stoste and selects zinc operation to brew water, iron concentrate foam using with iron concentrate foam Flushing water uses high buck, is advantageous to iron concentrate sedimentation filtration.
In the above method, Tailing thickening overflow water direct reuse is in selecting sulphur operation and magnetic separation Mn resource.Manganic concerntrate concentration is overflow Flowing water direct reuse is in selecting sulphur operation and magnetic separation Mn resource.Tailing thickening overflow water and manganic concerntrate concentration overflow water water quality are limpid, Returned directly as sulphur stoste and select sulphur operation and magnetic separation manganese systems to unite and use.
In the above method, fully recovering is back to ball after remaining waste water-end water enters sewage disposal system reasonable sanding Mill is classified and selects Lead exposed point, realizes that beneficiation wastewater all recycles.Sewage disposal system addition lime adjustment pH value of sewage water 7-9, addition coagulant PAC reach 30-50ppm, and addition flocculant PAM reaches 1-5ppm.
Mine tailing with the addition of a small amount of flocculant PAM before entering vertical sand warehouse;It is more clear in acid and water quality that dewatering system filters water It is clear, it can directly return to dewatering system use.
In the above method, sludge caused by sewage disposal system returns to iron concentrate concentration basin, and iron concentrate in the lump make by output For product.Mineral into sewage disposal system are mainly fine grained troilite, into sewage disposal system precipitation process after again Pyrite Concentrate Dewatering concentration basin is returned to be comprehensively utilized.
In the above method, raw ore concentration overflow water and lead concentrate concentrate overflow water and ball milling point are directly returned after natural sedimentation Level and select Lead exposed to use;Concentrating of zinc tailings overflow water and zinc concentrate concentrate overflow water, and directly zinc operation is selected in return after natural sedimentation Used using water is brewed with iron concentrate foam tank;Mine tailing and manganic concerntrate concentration overflow water directly return and select sulphur operation and magnetic separation manganese to make Industry uses;Remaining other waste water enter sewage disposal system, and coagulant PAC, flocculant PAM are added after lime adjusts pH value, Return again to ball grinder graded after processing and select the settings such as lead to use;Sludge caused by sewage disposal(Predominantly fine grained troilite) Return to the mixing of iron concentrate concentration basin and be used as product output.
The method of the present invention, have and influence to each operation flotation atmosphere of flotation of harmful ion and medicament, big is greatly reduced Amplitude reduces sewage load, reduces cost for wastewater treatment, saves beneficiation reagent, stable raising mineral processing index, recycling sludge The advantages that utilization.
Brief description of the drawings
Fig. 1 is the process flow diagram of the present invention.
Embodiment
Embodiment 1
Certain lead zinc sulphur manganese polymetallic ore mine, the polynary category content of lead zinc sulphur manganese polymetallic ore raw ore: Pb 1.65%,Zn 2.44%, S 30%, mineral processing circuit are:The more metal raw ores of lead zinc sulphur manganese carry out raw ore after grinding-classification operation and are concentrated into Concentration 50%, then carry out selecting lead successively(Silver)Operation, select zinc operation;Select after zinc operation again through concentrating of zinc tailings to concentration 50%, then according to It is secondary to carry out selecting sulphur operation, select Mn resource, select manganese mine tailing after sand warehouse deposition dehydrating plus cement enters underground consolidated fill.
Raw ore concentrates overflow water and lead concentrate concentration overflow water directly returns to ball grinder graded operation and choosing after simple precipitation Lead exposed uses;Directly returned after concentrating of zinc tailings overflow water and the zinc concentrate concentration concentrated precipitation of overflow water and select Zn system and be used as Iron concentrate foam tank flushing water;Tailing thickening overflow water and manganic concerntrate concentration overflow water directly return and select sulphur system, magnetic separation manganese systems System uses;Remaining waste water enters sewage disposal system, after coagulant PAC, flocculant PAM processing are added after lime adjusts pH value Return ball grinder graded and select the settings such as lead to use;Sludge caused by sewage disposal system returns to iron concentrate concentration basin as product Output, realize comprehensive utilization.
Production sample ore is taken to do ball milling and select Lead exposed water contrast test, comparing result is shown in Table 1:
Table 1:Select lead water test comparing result
As can be seen from Table 1:Ball milling operation and select Lead exposed add water using raw ore and lead concentrate mixing concentration overflow water with from Carry out wet concentration lead index to compare, the main grade of lead concentrate is close, and lead concentrate lead recovery is also improved, but mixes using raw ore and lead concentrate That closes concentration overflow water selects the lead medicament range of decrease obvious:Lime consumption declines to a great extent, and terpenic oil no longer adds, collecting agent and inhibitor There is a certain degree of decline.Mineral processing production is using raw ore and lead concentrate mixing concentration overflow water, before mineral processing index is ensured Put, be advantageous to save it is fresh use water, while advantageously reduce floating agent dosage.
Embodiment 2
Embodiment 2 selects Lead exposed mine tailing from sample ore for embodiment 1, selects zinc operation water contrast test, comparing result is shown in Table 2:
Table 2:Select zinc operation water test comparing result
As can be seen from Table 2:Zinc operation is selected to add water using zinc tail and zinc concentrate mixing concentration overflow water and originally wet concentration zinc finger Mark is compared, and selects zinc recovery close, but selects the zinc medicament range of decrease obvious using zinc tail and zinc concentrate mixing concentration overflow water.Ore dressing Production is using zinc tail and zinc concentrate mixing concentration overflow water, on the premise of mineral processing index is ensured, be advantageous to save it is fresh use water, Advantageously reduce floating agent dosage simultaneously.
Embodiment 3
Embodiment 3 selects raw ore same as Example 1, and iron concentrate concentration overflow water and the mixing of other systems superfluous water are laggard Row waste water reasonable sanding, lime adjustment pH value of sewage water 7-9, PAC 30-50ppm, PAM 1-5ppm are added, is taken after standing 5 minutes Supernatant participates in lead zinc sulphur whole process flotation contrast and uses water contrast test, and comparing result is shown in Table 3:
Table 3:Lead zinc sulphur flotation operation water test comparing result
As can be seen from Table 3:Flotation of lead zinc sulphur flotation operation adds water using reasonable sanding water compared with running water index, ore dressing Index is close.It is feasible that reasonable sanding water is used for mineral processing production, it is possible to reduce the dosage of fresh water.

Claims (8)

1. a kind of method of the efficient separate-recycling of lead-zinc metallogenic belt beneficiation wastewater, it is characterized in that:Segmentation concentration body stoste point Matter direct reuse, a small amount of end water reasonable sanding fully recovering, sludge caused by sewage disposal system return to production system synthesis Utilize.
2. the method according to claim 11, it is characterized in that:Raw ore concentrates overflow water and lead concentrate concentration overflow water directly returns For ball grinder graded operation and select Lead exposed.
3. the method according to claim 11, it is characterized in that:Concentrating of zinc tailings overflow water and zinc concentrate concentration overflow water directly return For selecting zinc operation and iron concentrate foam to brew water.
4. the method according to claim 11, it is characterized in that:Tailing thickening overflow water direct reuse is in selecting sulphur operation and magnetic separation Mn resource.
5. the method according to claim 11, it is characterized in that:Manganic concerntrate concentrates overflow water direct reuse in selecting sulphur operation and magnetic Select Mn resource.
6. the method according to claim 11, it is characterized in that:Remaining waste water-end water enters at sewage disposal system appropriateness Fully recovering is back to ball grinder graded and selects Lead exposed point after reason, realizes that beneficiation wastewater all recycles.
7. according to the method described in claim 1,6, it is characterized in that:Sewage disposal system addition lime adjustment pH value of sewage water 7-9, Addition coagulant PAC reaches 30-50ppm, and addition flocculant PAM reaches 1-5ppm.
8. according to the method described in claim 1,6, it is characterized in that:Sludge caused by sewage disposal system returns to iron concentrate concentration Pond, and iron concentrate in the lump output as product.
CN201711073367.6A 2017-11-04 2017-11-04 A kind of method of the efficient separate-recycling of lead-zinc metallogenic belt beneficiation wastewater Pending CN107840424A (en)

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Cited By (6)

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Publication number Priority date Publication date Assignee Title
CN109174471A (en) * 2018-08-28 2019-01-11 北京矿冶科技集团有限公司 A kind of automatically cleaning return water processing method
CN109647617A (en) * 2018-12-28 2019-04-19 江西省宜丰万国矿业有限公司 A kind of method that non-ferrous metal underground mine tailing proposes iron sulfur reduction
CN110420482A (en) * 2019-08-14 2019-11-08 中国特种设备检测研究院 A kind of composite flocculation agent for handling oil-sand mine tailing and the processing method for curing thin tailing
CN110759531A (en) * 2019-11-07 2020-02-07 南昌航空大学 Quality-based treatment-grading recycling method for beneficiation wastewater of tungsten-zinc polymetallic ores
CN111841876A (en) * 2020-07-16 2020-10-30 湖南柿竹园有色金属有限责任公司 Method for segmented recycling of copper-tin polymetallic ore beneficiation wastewater
CN112871462A (en) * 2021-01-13 2021-06-01 南京银茂铅锌矿业有限公司 Beneficiation process method for refined quality-based recycling of lead-zinc sulfide ore wastewater

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CN107282287A (en) * 2017-08-17 2017-10-24 长沙有色冶金设计研究院有限公司 A kind of recycling water utilization method before copper-molybdenum Xuan Chang factories
CN109604045A (en) * 2018-11-14 2019-04-12 铜陵有色金属集团股份有限公司 The method of lime and beneficiation reagent dosage is reduced in copper ores with high sulfur content mining production

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109174471A (en) * 2018-08-28 2019-01-11 北京矿冶科技集团有限公司 A kind of automatically cleaning return water processing method
CN109647617A (en) * 2018-12-28 2019-04-19 江西省宜丰万国矿业有限公司 A kind of method that non-ferrous metal underground mine tailing proposes iron sulfur reduction
CN109647617B (en) * 2018-12-28 2021-09-07 江西省宜丰万国矿业有限公司 Method for extracting iron and reducing sulfur from nonferrous metal underground mine tailings
CN110420482A (en) * 2019-08-14 2019-11-08 中国特种设备检测研究院 A kind of composite flocculation agent for handling oil-sand mine tailing and the processing method for curing thin tailing
CN110759531A (en) * 2019-11-07 2020-02-07 南昌航空大学 Quality-based treatment-grading recycling method for beneficiation wastewater of tungsten-zinc polymetallic ores
CN111841876A (en) * 2020-07-16 2020-10-30 湖南柿竹园有色金属有限责任公司 Method for segmented recycling of copper-tin polymetallic ore beneficiation wastewater
CN112871462A (en) * 2021-01-13 2021-06-01 南京银茂铅锌矿业有限公司 Beneficiation process method for refined quality-based recycling of lead-zinc sulfide ore wastewater

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