CN107362917A - From closed circuit tailing dry arranging device and technique under a kind of dewatering screen sieve - Google Patents
From closed circuit tailing dry arranging device and technique under a kind of dewatering screen sieve Download PDFInfo
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- CN107362917A CN107362917A CN201710771075.3A CN201710771075A CN107362917A CN 107362917 A CN107362917 A CN 107362917A CN 201710771075 A CN201710771075 A CN 201710771075A CN 107362917 A CN107362917 A CN 107362917A
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- Prior art keywords
- cyclone
- group
- dewatering screen
- delivered
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C9/00—Combinations with other devices, e.g. fans, expansion chambers, diffusors, water locks
Abstract
The present invention proposes from closed circuit tailing dry-type emission technology to comprise the following steps under a kind of dewatering screen sieve：Mine tailing is delivered in first group of cyclone and carries out concentration classification；The overflow product of first group of cyclone is delivered in spill box, its underflow product is delivered into vibrating-dewatering screen is dehydrated；Vibrating-dewatering screen is sieved into upper product output, its undersized product is flow in pump pond certainly；Part overflow product in spill box is delivered in pump pond, controls its conveying capacity to make the amount of mixture and the processing of second group of cyclone in pump pond flux matched；Mixture in pump pond is delivered in second group of cyclone and carries out concentration classification；The overflow product of second group of cyclone is delivered in spill box, its underflow product is delivered into vibrating-dewatering screen is dehydrated, and return to step 3 is formed from closed cycle afterwards；When vibrating-dewatering screen, which sieves upper product moisture content, reaches 18 ± 2%, tailing dry row's operation is completed.The effect of tailing dry row is improved under above-mentioned dewatering screen sieve from closed circuit tailing dry-type emission artistic skill, realizes mine tailing high-efficiency dehydration.
Description
Technical field
From closed circuit tailing dry arranging device under being sieved the present invention relates to tailing dry drainage technique field, more particularly to a kind of dewatering screen
And technique.
Background technology
Tailing dry row is for the wet row of mine tailing, refers to select the techniques such as the concentrated, dehydration of factory's low concentration mine tailing, system
It is standby go out a kind of tailing cake to lose flowability or the very poor high-concentration tailings lotion of the mobility side that is conveyed and stored up
Method.Compared with the wet row of traditional mine tailing, Tailings Dam discharge, tailing dry row have stockpiling flexibly, safety and stability, operating cost it is low and
The advantages such as floor space is small.Tailing dry lines up the important method for tailings impoundment, has broad application prospects.
Tailing dry row equipment mainly has cyclone+vibrating-dewatering screen, belt vacuum filter, chamber-type press filter etc. at present,
Wherein cyclone+vibrating-dewatering screen has the advantages that equipment investment is low, operating cost is low, floor space is small, but in actual production
During, dewatering screen sieve it is lower can closed cycle be treated as restricting the problem of tailing dry arranges effect, particularly with mine tailing long distance
From the technique for being delivered to dewatering screen, cyclone reprocessing can not be back under sieve, so that dry scheduling rate reduces by 10 ~ 15%, increase
The operating cost of tailings dewatering.Therefore, develop from the tailing dry-type emission technology of closed cycle under dewatering screen sieve, for improving mine tailing
Dry row's effect is significant.
The content of the invention
In order to solve problems of the prior art, the present invention is proposed under a kind of dewatering screen sieve from closed circuit tailing dry
Arranging device and technique, to realize mine tailing high-efficiency dehydration.
To achieve these goals, one aspect of the present invention is proposed under a kind of dewatering screen sieve from closed circuit tailing dry-type emission
Skill, comprise the following steps：
Step 1, mine tailing is delivered in first group of cyclone carry out concentration classification；
Step 2, the overflow product of first group of cyclone delivered in spill box, its underflow product is delivered into vibrating-dewatering screen is carried out
Dehydration；
Step 3, by vibrating-dewatering screen sieve, above product exports, as dry scheduling product；Vibrating-dewatering screen undersized product is flow to pump certainly
Chi Zhong；
Step 4, the part overflow product in spill box delivered in pump pond, and control the conveying into the overflow product in pump pond
Amount so that the amount of mixture and the processing of second group of cyclone are flux matched in pump pond；
Step 5, the mixture in pump pond is delivered in second group of cyclone carry out concentration classification；
Step 6, the overflow product of second group of cyclone delivered in spill box, its underflow product is delivered into vibrating-dewatering screen is carried out
Dehydration；Meanwhile if mine tailing continues on to first group of cyclone, continue to carry out mine tailing concentration point by first group of cyclone
Level, and the overflow product of first group of cyclone is delivered in spill box, its underflow product is delivered into vibrating-dewatering screen is dehydrated；
Return to step 3 afterwards, formed from closed cycle；
Step 7, when vibrating-dewatering screen sieves upper product moisture content and reaches 18 ± 2%, tailing dry row's operation is completed.
Preferably, first group of cyclone includes N number of cyclone, and second group of cyclone includes M cyclone, N and M
It is natural number.
It is preferential, in the step 4, part overflow product is delivered in pump pond by reflux line, and by can
Control the conveying capacity that valve regulated enters the overflow product in pump pond.
Preferably, in the step 5, the mixture in pump pond is pumped into second group of cyclone by Pulp pump
Row concentration classification.
Preferably, the controllable valve, vibrating-dewatering screen and Pulp pump are controlled by control system.
Another aspect of the present invention is proposed under a kind of dewatering screen sieve from closed circuit tailing dry arranging device, including first group of eddy flow
Device and second group of cyclone, wherein first group of cyclone includes N number of cyclone, second group of cyclone includes M cyclone, N and M
Be natural number, first group of cyclone is used to carry out pending mine tailing concentration classification, first group of cyclone and
The overfall of second group of cyclone is connected with spill box, and the underflow opening of first group of cyclone and second group of cyclone is equal
It is corresponding with the charging aperture of vibrating-dewatering screen, the underflow product of first group of cyclone and second group of cyclone is delivered to vibration dehydration
In sieve；The vibrating-dewatering screen is arranged on pump pond, the undersized product of vibrating-dewatering screen is flow to certainly in pump pond, the overflow
Case is connected by reflux line with pump pond, and controllable valve is additionally provided with the reflux line；The pump pond also with Pulp pump
Import be connected, the outlet of the Pulp pump is connected through pan feeding pipeline with the charging aperture of second group of cyclone；It is described controllable
Valve, vibrating-dewatering screen and Pulp pump are controlled by control system.
The beneficial effect of the program of the present invention is under above-mentioned dewatering screen sieve from closed circuit tailing dry arranging device and technique
The effect of tailing dry row can be improved, realizes mine tailing high-efficiency dehydration.
Brief description of the drawings
Fig. 1 is shown under the dewatering screen sieve in the present embodiment from the main structure diagram of closed circuit tailing dry arranging device.
Fig. 2 is shown under the dewatering screen sieve in the present embodiment from the overlooking the structure diagram of closed circuit tailing dry arranging device.
Fig. 3 is shown under dewatering screen sieve involved in the present invention from the flow chart of closed circuit tailing dry-type emission technology.
Reference：First group of cyclone of 1-, second group of cyclone of 2-, 3- spill boxes, 4- pan feeding pipelines, 5- vibration dehydrations
Sieve, 6- reflux lines, 7- Pulp pumps, 8- pumps pond, 9- controllable valves.
Embodiment
The embodiment of the present invention is further described below in conjunction with the accompanying drawings.
As shown in Figure 1-2, first group of rotation is included from closed circuit tailing dry arranging device under dewatering screen involved in the present invention sieve
Device 1 and second group of cyclone 2 are flowed, wherein first group of cyclone 1 includes N number of cyclone, second group of cyclone 2 includes M eddy flow
Device, N and M are natural number, and in the present embodiment, first group of cyclone 1 includes three cyclones, second group of cyclone 2
Including a cyclone.First group of cyclone 1 is used to carry out pending mine tailing concentration classification, first group of eddy flow
The overfall of device 1 and second group of cyclone 2 is connected with spill box 3, first group of cyclone 1 and second group of cyclone 2
Underflow opening it is corresponding with the charging aperture of vibrating-dewatering screen 5, make the underflow of first group of cyclone 1 and second group of cyclone 2 production
Thing is delivered in vibrating-dewatering screen 5；The vibrating-dewatering screen 5 is arranged on pump pond 8, makes the undersized product of vibrating-dewatering screen 5 certainly
It flow in pump pond 8, the spill box 3 is connected by reflux line 6 with pump pond 8, is additionally provided with the reflux line 6 controllable
Valve 9；Import of the pump pond 8 also with Pulp pump 7 is connected, and the outlet of the Pulp pump 7 is through pan feeding pipeline 4 and second group of rotation
The charging aperture of stream device 2 is connected；The controllable valve 9, vibrating-dewatering screen 5 and Pulp pump 7 are controlled by control system,
To make system reach dynamic balance.
As shown in figure 3, comprise the following steps under dewatering screen sieve involved in the present invention from closed circuit tailing dry-type emission technology：
Step 1, mine tailing is delivered in first group of cyclone 1 carry out concentration classification.In the present embodiment, mine tailing can be pumped up or
Gravity flow enters in first group of cyclone 1.
Step 2, the overflow product of first group of cyclone 1 delivered in spill box 3, its underflow product is delivered into vibration dehydration
Sieve 5 is dehydrated.
Step 3, vibrating-dewatering screen 5 is sieved into upper product exported, as dry scheduling product；By the undersized product of vibrating-dewatering screen 5 certainly
It flow in pump pond 8.In the present embodiment, product is transported to Gan Dui places using belt feeder or automobile on sieve.
Step 4, the part overflow product in spill box 3 delivered in pump pond 8, and control the overflow product into pump pond 8
Conveying capacity so that the amount of mixture and the processing of second group of cyclone 2 are flux matched in pump pond 8.In the present embodiment, by returning
Flow tube road 6 delivers to part overflow product in pump pond 8, and the conveying by the regulation of controllable valve 9 into the overflow product in pump pond 8
Amount, to make mixture in pump 8（Ore pulp）Amount and the processing of second group of cyclone 2 it is flux matched, reach dynamic equilibrium.
Step 5, the mixture in pump pond 8 is delivered in second group of cyclone 2 carry out concentration classification.In the present embodiment,
The mixture in pump pond 8 is pumped into second group of cyclone 2 by Pulp pump 7 and carries out concentration classification.
Step 6, the overflow product of second group of cyclone 2 delivered in spill box 3, its underflow product is delivered into vibration dehydration
Sieve 5 is dehydrated；Meanwhile if mine tailing continues on to first group of cyclone 1, continued by first group of cyclone 1 to mine tailing
Concentration classification is carried out, and the overflow product of first group of cyclone 1 is delivered in spill box 3, it is de- that its underflow product is delivered into vibration
Water sieve 5 is dehydrated.Return to step 3 afterwards, formed from closed cycle.
Step 7, when vibrating-dewatering screen 5 sieves upper product moisture content and reaches 18 ± 2%, tailing dry row's operation is completed.
It can improve tailing dry row's from closed circuit tailing dry arranging device and technique under dewatering screen sieve involved in the present invention
Effect, realize mine tailing high-efficiency dehydration.
Claims (6)
1. from closed circuit tailing dry-type emission technology under a kind of dewatering screen sieve, it is characterised in that：Comprise the following steps：
Step 1, mine tailing is delivered in first group of cyclone carry out concentration classification；
Step 2, the overflow product of first group of cyclone delivered in spill box, its underflow product is delivered into vibrating-dewatering screen is carried out
Dehydration；
Step 3, by vibrating-dewatering screen sieve, above product exports, as dry scheduling product；Vibrating-dewatering screen undersized product is flow to pump certainly
Chi Zhong；
Step 4, the part overflow product in spill box delivered in pump pond, and control the conveying into the overflow product in pump pond
Amount so that the amount of mixture and the processing of second group of cyclone are flux matched in pump pond；
Step 5, the mixture in pump pond is delivered in second group of cyclone carry out concentration classification；
Step 6, the overflow product of second group of cyclone delivered in spill box, its underflow product is delivered into vibrating-dewatering screen is carried out
Dehydration；Meanwhile if mine tailing continues on to first group of cyclone, continue to carry out mine tailing concentration point by first group of cyclone
Level, and the overflow product of first group of cyclone is delivered in spill box, its underflow product is delivered into vibrating-dewatering screen is dehydrated；
Return to step 3 afterwards, formed from closed cycle；
Step 7, when vibrating-dewatering screen sieves upper product moisture content and reaches 18 ± 2%, tailing dry row's operation is completed.
2. from closed circuit tailing dry-type emission technology under dewatering screen sieve according to claim 1, it is characterised in that：Described first group
Cyclone includes N number of cyclone, and second group of cyclone includes M cyclone, and N and M are natural number.
3. from closed circuit tailing dry-type emission technology under dewatering screen sieve according to claim 1, it is characterised in that：In the step
In 4, part overflow product is delivered in pump pond by reflux line, and the overflow product by controllable valve regulation into pump pond
Conveying capacity.
4. from closed circuit tailing dry-type emission technology under dewatering screen sieve according to claim 3, it is characterised in that：In the step
In 5, the mixture in pump pond is pumped into second group of cyclone by Pulp pump and carries out concentration classification.
5. from closed circuit tailing dry-type emission technology under dewatering screen sieve according to claim 4, it is characterised in that：The controlled valve
Door, vibrating-dewatering screen and Pulp pump are controlled by control system.
6. from closed circuit tailing dry arranging device under a kind of dewatering screen sieve, it is characterised in that：Including first group of cyclone and second group
Cyclone, wherein first group of cyclone includes N number of cyclone, second group of cyclone includes M cyclone, and N and M are nature
Number, first group of cyclone are used to carry out pending mine tailing concentration classification, first group of cyclone and second group of rotation
The overfall of stream device is connected with spill box, and the underflow opening of first group of cyclone and second group of cyclone takes off with vibrating
The charging aperture of water sieve is corresponding, the underflow product of first group of cyclone and second group of cyclone is delivered in vibrating-dewatering screen；Institute
State vibrating-dewatering screen to be arranged on pump pond, making the undersized product of vibrating-dewatering screen, the spill box passes through from flowing in pump pond
Reflux line is connected with pump pond, and controllable valve is additionally provided with the reflux line；Import of the pump pond also with Pulp pump
It is connected, the outlet of the Pulp pump is connected through pan feeding pipeline with the charging aperture of second group of cyclone；The controllable valve, shake
Dynamic dewatering screen and Pulp pump are controlled by control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710771075.3A CN107362917A (en) | 2017-08-31 | 2017-08-31 | From closed circuit tailing dry arranging device and technique under a kind of dewatering screen sieve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710771075.3A CN107362917A (en) | 2017-08-31 | 2017-08-31 | From closed circuit tailing dry arranging device and technique under a kind of dewatering screen sieve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107362917A true CN107362917A (en) | 2017-11-21 |
Family
ID=60312480
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710771075.3A Pending CN107362917A (en) | 2017-08-31 | 2017-08-31 | From closed circuit tailing dry arranging device and technique under a kind of dewatering screen sieve |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108380382A (en) * | 2018-02-05 | 2018-08-10 | 珲春紫金矿业有限公司 | A kind of dry heap of fine tailings is built a dam the heap discharge method being combined with wet row |
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| RU2070837C1 (en) * | 1994-03-31 | 1996-12-27 | Спиртус Марк Аврамович | Method for processing of gold-containing materials |
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| DE102005048959A1 (en) * | 2005-10-13 | 2007-04-19 | Schauenburg Maschinen- Und Anlagen-Bau Gmbh | Method for processing ash used in a furnace comprises feeding a replacement fuel component/ash mixture to a self-cleaning oscillating grate for classification, feeding to a dewatering/fine classification unit and further processing |
| CN101513625A (en) * | 2009-03-25 | 2009-08-26 | 中钢集团马鞍山矿山研究院有限公司 | Overall utilization and treating process of iron ore mine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108380382A (en) * | 2018-02-05 | 2018-08-10 | 珲春紫金矿业有限公司 | A kind of dry heap of fine tailings is built a dam the heap discharge method being combined with wet row |
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