CN105268545A - Tailings dehydrating combined device with water circulating system - Google Patents
Tailings dehydrating combined device with water circulating system Download PDFInfo
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- CN105268545A CN105268545A CN201410296737.2A CN201410296737A CN105268545A CN 105268545 A CN105268545 A CN 105268545A CN 201410296737 A CN201410296737 A CN 201410296737A CN 105268545 A CN105268545 A CN 105268545A
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Abstract
The invention discloses a tailings dehydrating combined device with a water circulating system. The problems that the sedimentation dehydration of tailings washing of diggings at present is difficult, wet stockpiling is usually adopted, the defects that the occupied area is large, the storage building investment is large, the storage capacity utilization rate is low and hidden danger of safety and environment protection is high exist, and extra water is used to washing the interior of the combined device, water resource is largely wasted are solved. The tailings dehydrating combined device comprises a water inlet pipe, a water returning pipe, a water collecting tank and a water returning pump. A water discharging outlet of a centrifugal machine is communicated with one end of the water inlet pipe. The other end of the water inlet pipe extends into the water collecting tank or is located above the water collecting tank. One end of the water returning pipe is communicated with the lower portion of the water collecting tank, and the other end of the water returning pipe is communicated with a material discharging pipe. The water returning pump is arranged on the water returning pipe. The tailings dehydrating combined device with the water circulating system is used for the treatment of the washing of the tailings of the diggings.
Description
Technical field
The present invention relates to the device of mine washing tailings dewatering, belong to the Tailings Disposal technical field in mining production.
Background technology
The general all auxiliary construction mines of alumina producer, aluminous mine often produces 1 ton of bauxite by generation about 1.5 ~ 2.0 tons of mine tailings, and the appropriate disposal of the mine tailing produced after the washup ore dressing of mine is the significant problem being related to Sustainable Development of Enterprises.Because of the colloidal solid that bauxite washing mine tailing is a kind of fine size, viscosity is high, specific area is large, decentralization is high, deposition dehydrating difficulty, all the time, aluminous mine washing mine tailing is all built spoil disposal storehouse and is carried out wet method and store up, exist floor space large, build that storehouse investment is large, storage capacity utilization rate is low, safety and the shortcoming such as environmental protection hidden danger is large.
The once repeatedly seepage environmental pollution that causes suspension to exceed standard of mine tailing mud in process is stored up in wet method.Nineteen ninety for spoil disposal storehouse under the plate of Pingguo repeatedly seepage cause periphery villager to drink well atmosphere pollution, 2009-2012 time silver aluminum mine spoil disposal storehouse there is leakage pollution several times, imposed a fine by Chinese Ministry of Environmental Protection and stop production half a year, causing larger economic loss.In June, 2013, there is mine tailing leakage accident in Guangxi Chinalco again, only speedily carries out rescue work to drop into just to spend nearly hundred million yuan.The mine tailing dry treatment that enterprise's urgent need development technique is feasible, economic and practical and comprehensive utilization technique are thoroughly to solve the difficult problem affecting Mine Safety in Production.
In addition, aluminous mine defines a large amount of Cai Kongkeng districts in the process of exploitation bauxite, is characterized in that quantity is many, depth as shallow (generally within 10m), the gross area are large.Due to the national conditions that China has a large population and a few land, reclaim after all needing outer muck haulage to fill out back and forth in goaf with making.On the one hand, fetch earth difficulty day by day in outside, and haul distance is far away, and cost is high, and on the other hand, a large amount of mine tailing mud is stored up by wet method and taken a large amount of valuable land resource, and soil boy structure pollution hidden trouble.
Once explored with plate and frame type filter-press process mine tailing in production practices Zhong Zhonglv Guangxi branch company (Pingguo aluminium), the filter cake produced after tailings characteristic is used for goaf reclamation, but because of mine tailing viscosity high, dewatering efficiency is low, operating cost is high, and this technology fails to be widely applied.Current Guangxi branch company still adopts the mode of building wet method storehouse to store up Tailings Slurry.If the tailing dehydrating device that a kind of dewatering efficiency is high, operating cost is low can be researched and developed, the dry mine tailing after dehydration is used for the comprehensive utilizations such as mine worked-out section filling or brickmaking, by the larger economic benefit of generation and social environment benefit.
Summary of the invention
The object of the invention is to: a kind of tailings dewatering combination unit with water circulation system is provided, to solve existing mine washing mine tailing deposition dehydrating difficulty, general employing wet method is stored up, exist floor space large, build that storehouse investment is large, storage capacity utilization rate is low, safety and the shortcoming such as environmental protection hidden danger is large, and the extra flushing using water to carry out the inside of combination unit, the problem of a large amount of waste water resource.
The solution of the present invention is as follows: a kind of tailings dewatering combination unit with water circulation system, comprise centrifuge, feed pipe, chemicals dosing plant, mud regulating tank and mixer, the working end of mixer is stretched in mud regulating tank, the feed end of feed pipe is connected with the bottom of mud regulating tank, the medicine outlet end of chemicals dosing plant is stretched in mud regulating tank, centrifuge is provided with discharge outlet and slag-drip opening, also comprise water inlet pipe, return pipe, water leg and back water pump, discharge outlet on centrifuge is connected with one end of water inlet pipe, the other end of water inlet pipe is stretched in water leg or directly over water leg, one end of return pipe is connected with the bottom of water leg, the other end of return pipe is connected with discharge nozzle, back water pump is arranged on return pipe.
Feed pipe is provided with valve.
Described centrifuge is horizontal spiral formula centrifuge.
The water side of discharge outlet is stretched in water leg.
On described centrifuge, the below of slag-drip opening is provided with conveying device.
Described conveying device is Shaftless screw conveyor, and the feed end of conveying device is arranged on centrifuge immediately below slag-drip opening, and conveying device tilts upward setting by feed end to discharge end.
The present invention compared with prior art, major advantage passes through water inlet pipe, return pipe, water leg and back water pump realize the recycling of water resource, for rinsing dewatering system equipment, saving water resource, and avoid the danger that the water deviate from mine tailing is directly discharged to contaminated environment in environment, simultaneously, chemicals dosing plant adds as flocculation medicaments such as polyacrylamides in mud regulating tank, mine tailing mud and flocculation medicament being mixed in mud regulating tank passes in centrifuge again, thus make mine tailing mud realize dehydrating and curing in centrifuge, without the need to building the spoil disposal storehouse being used for wet method and storing up, overcome conventional wet and store up the land occupation that mine tailing brings, the drawback of contaminated environment, thus realize Economization on land, reduce and store up investment, reduce enterprise operation cost, reduce the target of tailings impoundment risk and protection of the environment, good economic benefit can be obtained, meanwhile, the solidification mine tailing after dehydration also can be used for the reclamation of mine worked-out section, reduces reclamation cost, produces larger economic benefit and social environment benefit.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Detailed description of the invention
For making object of the present invention, technical scheme and a little clearly, below in conjunction with accompanying drawing, the present invention is described in further detail.
Composition graphs 1, embodiments provides a kind of combination unit for tailings dewatering, comprising:
Centrifuge 1, feed pipe 2 and chemicals dosing plant 5, the discharge end of feed pipe 2 passes in centrifuge 1, also comprise mud regulating tank 6 and mixer 7, the working end of mixer 7 is stretched in mud regulating tank 6, the feed end of feed pipe 2 is connected with the bottom of mud regulating tank 6, the medicine outlet end of chemicals dosing plant 5 is stretched in mud regulating tank 6, feed pipe 2 is provided with valve 3, centrifuge 1 is horizontal spiral formula centrifuge, described centrifuge 1 is provided with discharge outlet 8 and slag-drip opening 9, the water side of discharge outlet 8 is stretched in water leg 12, on centrifuge 1, the below of slag-drip opening 9 is provided with conveying device 14, described conveying device 14 is Shaftless screw conveyor, the feed end of conveying device 14 to be arranged on centrifuge 1 immediately below slag-drip opening 9, conveying device 14 tilts upward setting by feed end to discharge end, also comprise water inlet pipe 10, return pipe 11, water leg 12 and back water pump 13, discharge outlet 8 on centrifuge 1 is connected with one end of water inlet pipe 10, the other end of water inlet pipe 10 is stretched in water leg 12 or directly over water leg 12, one end of return pipe 11 is connected with the bottom of water leg 12, the other end of return pipe 11 is connected with discharge nozzle 4, back water pump 13 is arranged on return pipe 11.
Described conveying device 14 is preferably Shaftless screw conveyor, the feed end of conveying device 14 to be arranged on centrifuge 1 immediately below slag-drip opening 9, conveying device 14 tilts upward setting by feed end to discharge end, the discharge end place of conveying device 14 can arrange conveying arrangement such as transport vehicle 15 grade, by conveying arrangement, the solidification mine tailing after dehydration is transported, because mine can form a large amount of Cai Kongkeng districts in the process of exploitation mineral products, therefore, solidification mine tailing after dehydration can be used for the reclamation of mine worked-out section, there are two aspect benefits herein: on the one hand, the outside reclamation carrying out goaf that fetches earth is day by day difficult, haul distance is far away, cost is high, the reclamation adopting the solidification mine tailing after dehydration to be used for mine worked-out section greatly reduces the cost of reclamation, on the other hand, a large amount of mine tailing mud is stored up by wet method and is taken a large amount of valuable land resource, and soil boy structure pollution hidden trouble, and mine tailing slurry dewatering is converted into solidification mine tailing and water, solidification mine tailing is used further to reclamation, stores, and eliminate pollution hidden trouble without the need to land occupation.
Claims (6)
1. the tailings dewatering combination unit with water circulation system, comprise centrifuge (1), feed pipe (2), chemicals dosing plant (5), mud regulating tank (6) and mixer (7), the working end of mixer (7) is stretched in mud regulating tank (6), the feed end of feed pipe (2) is connected with the bottom of mud regulating tank (6), the medicine outlet end of chemicals dosing plant (5) is stretched in mud regulating tank (6), centrifuge (1) is provided with discharge outlet (8) and slag-drip opening (9), it is characterized in that: also comprise water inlet pipe (10), return pipe (11), water leg (12) and back water pump (13), discharge outlet (8) on centrifuge (1) is connected with one end of water inlet pipe (10), the other end of water inlet pipe (10) is stretched in water leg (12) or directly over water leg (12), one end of return pipe (11) is connected with the bottom of water leg (12), the other end of return pipe (11) is connected with discharge nozzle (4), back water pump (13) is arranged on return pipe (11).
2. a kind of tailings dewatering combination unit with water circulation system according to claim 1, is characterized in that: feed pipe (2) is provided with valve (3).
3. a kind of tailings dewatering combination unit with water circulation system according to claim 1, is characterized in that: described centrifuge (1) is horizontal spiral formula centrifuge.
4. a kind of tailings dewatering combination unit with water circulation system according to claim 1, is characterized in that: the water side of discharge outlet (8) is stretched in water leg (12).
5. a kind of tailings dewatering combination unit with water circulation system according to claim 1, is characterized in that: the below of the upper slag-drip opening (9) of described centrifuge (1) is provided with conveying device (14).
6. a kind of tailings dewatering combination unit with water circulation system according to claim 1, it is characterized in that: described conveying device (14) is Shaftless screw conveyor, the feed end of conveying device (14) is arranged on immediately below the upper slag-drip opening (9) of centrifuge (1), and conveying device (14) tilts upward setting by feed end to discharge end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410296737.2A CN105268545A (en) | 2014-06-27 | 2014-06-27 | Tailings dehydrating combined device with water circulating system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410296737.2A CN105268545A (en) | 2014-06-27 | 2014-06-27 | Tailings dehydrating combined device with water circulating system |
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| CN105268545A true CN105268545A (en) | 2016-01-27 |
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| CN201410296737.2A Pending CN105268545A (en) | 2014-06-27 | 2014-06-27 | Tailings dehydrating combined device with water circulating system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107350091A (en) * | 2016-05-09 | 2017-11-17 | 苏州科联精密机械有限公司 | Improved vertical flow guiding type centrifugal unloader filtering centrifuge |
| CN107597410A (en) * | 2017-08-12 | 2018-01-19 | 陈俊 | A kind of sludge separator of high-efficiency environment friendly |
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2014
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| CN101708483A (en) * | 2009-11-07 | 2010-05-19 | 核工业烟台同兴实业有限公司 | Tailing dry-heaping equipment and processing technique thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107350091A (en) * | 2016-05-09 | 2017-11-17 | 苏州科联精密机械有限公司 | Improved vertical flow guiding type centrifugal unloader filtering centrifuge |
| CN107597410A (en) * | 2017-08-12 | 2018-01-19 | 陈俊 | A kind of sludge separator of high-efficiency environment friendly |
| CN107597410B (en) * | 2017-08-12 | 2019-07-09 | 陈俊 | A kind of sludge separator of high-efficiency environment friendly |
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