CN205084868U - Dry -discharge system for tailings - Google Patents
Dry -discharge system for tailings Download PDFInfo
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- CN205084868U CN205084868U CN201520846602.9U CN201520846602U CN205084868U CN 205084868 U CN205084868 U CN 205084868U CN 201520846602 U CN201520846602 U CN 201520846602U CN 205084868 U CN205084868 U CN 205084868U
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- filter
- tailings
- dry
- discharge system
- concentrator
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/52—Mechanical processing of waste for the recovery of materials, e.g. crushing, shredding, separation or disassembly
Abstract
The utility model relates to a dry -discharge system for tailings, this system include flotation device, hydraulic cyclone, belt filter and lotion concentrator, and the tailing after the flotation gets into hydraulic cyclone grades, and belt filter, overflow entering lotion concentrator are gone into to the sand setting after grading. The utility model is suitable for a large -scale mine, tailing when the grinding fineness -400 mesh accounts for more than 90% is arranged futilely, the flow is simple, equipment is few, the single adoption belt filter that compares does gang sawyer's skill, can avoid the fine particles material to block up the filtration pore of filter and cause production efficiency to reduce, because the fine particles material adopts the lotion to discharge, comparing, the filter cake discharges after ordinary concentrator + pressure filter filter -pressing, the technique has the characteristics of low energy consumption, the operation is thus simple, a high production efficiency is obtained, direct available return water volume will exceed 20% with first -class advantage, and can avoid the environment to the sand, the influence of dust.
Description
Technical field
The utility model belongs to and relates to a kind of dry-discharge system for tailings.
Background technology
According in State Bureau of Environmental Protection's environment-development (2005) No. 109 file " mine ecological environment qrotection and pollution prevention technique policy " about should implement in exploitation of mineral resources " prevention and cure of pollution and ecological environmental protection are laid equal stress on; ecological environmental protection and ecological construction develop simultaneously and put prevention first, prevent and treat combine, process control, the comprehensive regulation " guilding principle, the ratio of water recycle of non-ferrous metal system ore dressing of looking for novelty, expand, reconstruct reaches more than 75%.According in National Standard of the People's Republic of China GB50782-2012 " non-ferrous metal ore factory production engineering specifications " in serious water shortage, arid, large evaporation capacity area, mine tailing should adopt the dry drainage journey of dehydration.
In non-ferrous metal ore-dressing of polymetallic ore, sorting difficulty is caused because mineral disseminated grain size is thin, mineral wrap up mutually and the disseminated grain size of ore is uneven, in order to effectively improve the efficiency of separation and separation index, need to make ore monomer dissociation to greatest extent, cause the mog of ore to reach-400 orders sometimes and account for more than 95%.In addition, the ore Beneficiation Feed Grade of current Newly-built mine is reducing gradually, in order to the maximizing the benefits of manufacturing enterprise can be made, the production scale of part nonferrous metal mine reaches more than ten thousand tons/day, even may be higher, but at assorting room, need newly to add and a large amount of add new water, this mine for water-deficient area proposes acid test, for this reason, need the moisture content reducing mine tailing as far as possible, but for the mine tailing of the thin large-scale mine of grinding particle size, during traditional dry row's PROCESS FOR TREATMENT, following problem can be there is:
First: when mine tailing fineness can reach more than-400 orders, this mine tailing belongs to ultra-fine grain, specific area is large, be difficult to sedimentation, the problems such as during as adopted traditional thickener+filter press dry row, this technique also exists that additive amount of medicament is large, energy consumption is high, time of filter pressing is long, efficiency of press filtering is low, number of devices is many, equipment operating and maintenance difficulty.Very secondary needs adopts the larger filter of disposal ability to filter.
Second: because mine tailing granularity is superfine, mine tailing easily swims in above concentrator, if adopt traditional common concentrator to concentrate, due to the restriction of equipment itself, there will be overflow water and run muddy, thus cause the backwater of concentrator not to be directly used in production.
Utility model content
The purpose of this utility model is to provide a kind of dry-discharge system for tailings, and adopt this system production efficiency higher, directly available backwater amount is higher.
The technical solution of the utility model is: a kind of dry-discharge system for tailings, this system comprises flotation device, hydrocyclone, band filter and Paste thickener, mine tailing after flotation enters hydroclone classification, and the sand setting after classification enters band filter, overflow enters Paste thickener.
Tail method of slurry pumps for mines after the utility model flotation squeezes into hydrocyclone.
The filter cake that the utility model obtains through band filter process enters Tailings Dam.
The utility model adopts plunger displacement pump to enter Tailings Dam through the underflow that Paste thickener process obtains.
The utility model is applicable to large-scale mine, tailing dry row when mog-400 order accounts for more than 90%, flow process is simple, equipment is few, row's technique done by single employing band filter of comparing, fine granular materials can be avoided to block the filter opening of filter and cause production efficiency to reduce, because fine granular materials adopts lotion discharge, to compare filter cake discharge after common concentrator+filter press press filtration, it is low that this technology has energy consumption, simple to operate, and production efficiency is high, directly available backwater amount will exceed 20% with first-class advantage, and environment can be avoided the impact of sand, dust.The overflow clear water of concentrator and filtrate the returning of band filter select the production head-tank of factory, thus can utilize the backwater selecting factory efficiently, and the backwater rate of Shi Xuan factory reaches more than 78%.
Accompanying drawing explanation
Accompanying drawing 1 is the utility model system schematic.
Detailed description of the invention
The utility model each equipment used all can adopt prior art, commercially available.
As shown in Figure 1, dry-discharge system for tailings of the present utility model, comprise flotation device, hydrocyclone, band filter and Paste thickener, tail method of slurry pumps for mines after flotation squeezes into hydroclone classification, sand setting (coarse granule) after classification enters band filter, overflow (fine grained) enters Paste thickener, and the underflow that Paste thickener process obtains adopts plunger displacement pump to enter Tailings Dam.
Adopt the technological process of the utility model system as follows: the tailings concentration obtained after flotation device flotation is about 30%, tail method of slurry pumps for mines squeezes into hydrocyclone, by controlling the feed pressure of cyclone, pipe diameter size and spigot size carry out classification, obtaining concentration is that the sand setting of 45%-48% enters band filter, and the moisture content that can control filter cake is less than 15%.And effluent concentration is 18-21%, it is dense that the fine granular materials of overflow enters Paste thickener by pipeline, and the running ore thickness of final available underflow can reach about 60%, and underflow adopts plunger displacement pump to enter Tailings Dam.
Concrete case: the molybdenum ore for somewhere, Inner Mongol treating capacity being 5,000,000 tons/year, the mog of ore accounts for 95% for-400 orders, the mass concentration of the mine tailing after flotation is 36%, after mine tailing is sent to hydroclone classification, the sand setting concentration obtained be 48% enter band filter filter, after filtering, the moisture content of filter cake is lower than 15%, concentration be 18% overflowing liquid enter Paste thickener, the running ore thickness finally obtaining underflow is 50%-60%.
Claims (5)
1. a dry-discharge system for tailings, it is characterized in that this system comprises flotation device, hydrocyclone, band filter and Paste thickener, the mine tailing after flotation enters hydroclone classification, and the sand setting after classification enters band filter, overflow enters Paste thickener.
2. dry-discharge system for tailings according to claim 1, is characterized in that the tail method of slurry pumps for mines after flotation squeezes into hydrocyclone.
3. dry-discharge system for tailings according to claim 1 and 2, is characterized in that the filter cake obtained through band filter process enters Tailings Dam.
4. dry-discharge system for tailings according to claim 1 and 2, is characterized in that the underflow obtained through Paste thickener process adopts plunger displacement pump to enter Tailings Dam.
5. dry-discharge system for tailings according to claim 3, is characterized in that the underflow obtained through Paste thickener process adopts plunger displacement pump to enter Tailings Dam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520846602.9U CN205084868U (en) | 2015-10-29 | 2015-10-29 | Dry -discharge system for tailings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520846602.9U CN205084868U (en) | 2015-10-29 | 2015-10-29 | Dry -discharge system for tailings |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205084868U true CN205084868U (en) | 2016-03-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520846602.9U Active CN205084868U (en) | 2015-10-29 | 2015-10-29 | Dry -discharge system for tailings |
Country Status (1)
| Country | Link |
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| CN (1) | CN205084868U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106955798A (en) * | 2017-04-21 | 2017-07-18 | 江西铜业股份有限公司 | A kind of tailing dam heap dam tailings method of quality control |
| CN109311027A (en) * | 2016-05-11 | 2019-02-05 | 英美资源服务（英国）有限公司 | Reduce the demand on tailing storage dam in mineral floating |
-
2015
- 2015-10-29 CN CN201520846602.9U patent/CN205084868U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109311027A (en) * | 2016-05-11 | 2019-02-05 | 英美资源服务（英国）有限公司 | Reduce the demand on tailing storage dam in mineral floating |
| CN106955798A (en) * | 2017-04-21 | 2017-07-18 | 江西铜业股份有限公司 | A kind of tailing dam heap dam tailings method of quality control |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |