CN104784982B - A kind of energy-saving deep cone thickener being suitable to fine granularity Tailings Disposal - Google Patents
A kind of energy-saving deep cone thickener being suitable to fine granularity Tailings Disposal Download PDFInfo
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- CN104784982B CN104784982B CN201510159703.3A CN201510159703A CN104784982B CN 104784982 B CN104784982 B CN 104784982B CN 201510159703 A CN201510159703 A CN 201510159703A CN 104784982 B CN104784982 B CN 104784982B
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- 239000002562 thickening agent Substances 0.000 title claims abstract description 33
- 238000004134 energy conservation Methods 0.000 claims abstract description 4
- 239000002002 slurry Substances 0.000 claims description 9
- 239000004576 sand Substances 0.000 claims description 4
- 239000000523 sample Substances 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 3
- 230000004913 activation Effects 0.000 abstract description 2
- 239000006210 lotion Substances 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 5
- 238000005065 mining Methods 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 4
- 230000005484 gravity Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000008719 thickening Effects 0.000 description 3
- 238000000280 densification Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000004537 pulping Methods 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
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Abstract
The invention discloses a kind of energy-saving deep cone thickener being suitable to fine tailings disposal, by to sandpipe (2), cylinder, overflow pipe (3), ore pulp valve (6), put sandpipe (7) combination to constitute, the center on cylinder top it is inserted into sandpipe (2), put the bottom UNICOM of sandpipe (7) and cylinder, ore pulp valve (6) is arranged on to be put on sandpipe (7), cylinder is by upper shell (1), lower shell (8) combination is constituted, upper shell (1) is combined by top large diameter cylinder and bottom rounding mesa-shaped cylinder and constitutes, lower shell (8) is combined by top small diameter cylinder and lower cone body and constitutes, large diameter cylinder, the diameter of small diameter cylinder is than being (2～6): 1, aspect ratio is 1:(1.5～5), upper shell (1) is 2:(2.5～4 with the aspect ratio of lower shell (8)).The present invention integrates deep cone thickener, normal sands storehouse and thickens the many technology of activation, can save land 20%, energy-conservation 35% for mine tailing filling or tailing dry-heaping, invests minimizing 25%, and running cost reduction by 15%, the Tailings Pulp weight concentration of discharge is up to 70%～80%.
Description
Technical field
The invention belongs to tailings glass and solid-liquid separation technique field, be specifically related to a kind of efficiently deep cone thickener, be particularly suitable for applying in the underground filling of fine tailings and tailing dry-heaping and solidification utilizing works.
Background technology
China is a mining powers, but the grade of most of mine resources is relatively low, discharges substantial amounts of mine tailing in beneficiation flowsheet, and along with the raising of mineral resource utilization degree, can mining grade reducing accordingly of ore, mine tailing generation amount is also increasing.Therefore, tailings glass is the important step of mining production.In recent years, under the pressure of environment and the pressure of safety, reducing the impact on earth's surface buildings or structures, reduce the generation of geological disaster, it is achieved Green Mine, environmental protection mine, the target of exploration without waster, most underground mine uses the mine tailing method of mining by the way of filling.
Before mine tailing filling, tailing dry-heaping and Tailings utilization, it is necessary to the dilutest this saturated fine tailings is carried out thickening.Dewatering has thickener, Sha Cang, filter or filter press etc. at present, and the defect of these conventional methods is that floor space is big, efficiency is low, energy consumption is high, cost is high.For concentrator, the equipment sold in the market and apply has peripheral traction thickener, efficient deep cone thickener, vibrations hang plate high-efficiency concentrator, hydraulic pressure center driving high-efficiency concentrator etc., the application of factory " the efficient deep wimble thickener select at Mei Shan " literary composition as delivered " mining industry bulletin " in March, 2007 describes a kind of efficient deep wimble thickener of 25mHRC type, driven type centered by HRC25-HP efficient deep wimble thickener structure.Main transmission is low rotation speed large torque worm speed reducer；Housing is armored concrete overhead system elastic construction, uses deep cone heavy grade armored concrete self waterproof structure.Its main operational principle is the feed box energy dissipating that material feeds on the crane span structure of concentrator top, is fed the feedwell of concentrator by hopper, and flocculates with flocculant mixing, and the material after flocculation settles under gravity in concentrator.After efficiently deep wimble thickener comes into operation, true tailings concentration can reach 45 more than %, before applying with high pressure thickener compared with, concentration 10～15 percentage points can be improved；Compared with before High efficient Revamp, concentration 15～19 percentage points can be improved.But the underflow pulp density of this efficient deep wimble thickener is at about 45 %, it is impossible to meet needs in underground filling and tailing dry-heaping and solidification utilizing works and tailings concentration is concentrated to the demand of more than 70%.
For the concentration after improving Tailing thickening further, being dehydrated, Chinese patent application 201310396047.X discloses a kind of Efficient deep cone thickener, including body, agitator, described agitator is arranged on the center of body, and described agitator connects transmission device, and described body is made up of cylinder section and cone section two parts, described cylinder section top is provided with overflow launder, bottom is provided with hang plate, and side connects feeding pipe, is provided with underflow pipe and jet water spout bottom described cone section.The invention have the characteristics that simple in construction, floor space is little, and disposal ability is big, utilizes the natural pressure of deep cone can obtain the underflow of more peace and quiet overflow and high concentration.But this thickener is similar with tradition thickener, it is also desirable to set up center to stir transmission device, and structure is complicated, cost is high, energy resource consumption is high, use cost is high.
Summary of the invention
The purpose of the present invention, it is aiming at the problems referred to above that prior art exists, and the energy-saving deep cone thickener being suitable to fine tailings disposal that a kind of simple in construction, low cost of manufacture, floor space are little, energy consumption is extremely low, operating cost is low, thickening efficiency is high is provided.
For realizing the above-mentioned purpose of the present invention, a kind of energy-saving deep cone thickener being suitable to fine tailings disposal of the present invention realizes by the following technical solutions:
The present invention is a kind of is suitable to the energy-saving deep cone thickener that fine tailings is disposed, be by sandpipe, cylinder, overflow pipe, ore pulp valve, put sandpipe combination constitute, the center on cylinder top it is inserted into sandpipe, overflow pipe and the cannelure UNICOM on cylinder top, put the bottom UNICOM of sandpipe and cylinder, ore pulp valve is arranged on to be put on sandpipe, and ore pulp valve is cut-off and the switch controlling lotion uninterrupted.High concentration Total tailing slurry or lotion is become for the Total tailing of middle low concentration slurry being concentrated continuously, efficiently at low cost densification, barrel designs is become the variable cross-section cylinder with certain size and volume and the truncated cone shape combining structure of a upper big, lower small, that is: described cylinder is made up of upper shell, lower shell combination, upper shell is combined by top large diameter cylinder and bottom rounding mesa-shaped cylinder and constitutes, and lower shell is combined by top small diameter cylinder and lower cone body and constitutes.Described large diameter cylinder, the diameter ratio of small diameter cylinder are with (2～6): 1 is advisable, with (2～4): 1 scope is preferred；Described large diameter cylinder, the aspect ratio of small diameter cylinder are with 1:(1.5～5) be advisable, with 1:(2～4) scope is preferred；The height of described upper shell and the aspect ratio of lower shell are 2:(2.5～4), with 2:(2.8～3.2) be preferred.
Putting sandpipe for preventing Concentrated tailings slurry from depositing blocking underflow in the cone of lower shell, the present invention is additionally provided with at the lower cone body side surface of lower shell and thickens anti-block apparatus；The pressure gauge of pore water pressure size of Tailings Pulp for measuring, in the lower cone body of display lower shell, manometric probe is positioned in the slurry of cone.
The described anti-block apparatus that thickens is the controlled pipeline mechanism of pressure, direction and flow.The present invention changes existing mine tailing filling thickener or CHARACTERISTICS OF TAILINGS SAND storehouse consumes a large amount of power pulpings and puts traditional behindhand type of sand, newly sets mine tailing (lotion) and thickens anti-block apparatus, it is ensured that flow by gravity releases Total tailing slurry (lotion) of high concentration continuously.
In order in time, quickly cope with Concentrated tailings slurry in the cone of lower shell, deposit blockage problem, the present invention be additionally provided with for open and close automatically ore pulp valve, thicken anti-block apparatus and ore pulp valve can be controlled, the valve opening size that thickens on anti-block apparatus thicken anti-blocking automatic control system.
The present invention is a kind of to be suitable to after the energy-saving deep cone thickener that fine tailings disposes uses above technical scheme, has a following good effect:
The present invention integrates deep cone thickener, normal sands storehouse and thickens the many technology of activation, use the dehydration of saturated mine tailing continuous concentration, storage, flow by gravity various functions in new, the up big and down small T-type structure cylinder (sand storehouse) of one, drastically reduce the area power pulping, and avoid Tailings Pulp deposit in cone blocking and plugging phenomenon, it is achieved Concentrated tailings slurry (lotion) uniformly continuous flow automatically.Whole device all uses gravity flow, does not has the mud scraper tool transmission device of existing thickener, can save land 20%, energy-conservation 35% for metallurgical mine mine tailing filling or tailing dry-heaping, invests minimizing 25%, and running cost reduces by 15%.
It was verified that Tailings Pulp through concentrating clarifying of the present invention, settle, compress after, the weight concentration of the Tailings Pulp (lotion) discharged from underflow is up to 70%～80%, volumetric concentration is up to 46%～60%, and annual average weight is at concentrations up to 75%.
The present invention is a kind of to be suitable to energy-saving deep cone thickener that fine tailings disposes and enters into upper shell at Tailings Pulp from feeding to sandpipe, and in body concentrating clarifying, settle, compress until from put that sandpipe discharges whole during, do not consume power.Up to the present, the most do not find not set the thickener of peripheral-traction or center transmission mechanism and rabbling mechanism.
Accompanying drawing explanation
Fig. 1 is that the present invention is a kind of is suitable to the energy-saving deep cone thickener structural representation that fine tailings is disposed.
Fig. 2 be the present invention use thicken anti-blocking automatic control system principle schematic.
Reference is: 1-upper shell, and 2-is to sandpipe, and 3-overflow pipe, 4-thickens anti-block apparatus, 5-pressure gauge, 6-ore pulp valve, and 7-puts sandpipe, 8-lower shell, and 9-thickens anti-blocking automatic control system, Ф1The top large diameter cylinder diameter of-upper shell 1, Ф2The top small diameter cylinder diameter of-lower shell 8, h1The top large diameter cylinder height of-upper shell 1, h2The bottom inverted round stage shape cylinder height of-upper shell 1, h3The top small diameter cylinder height of-lower shell 8, h4The bottom cone height of-lower shell 8.
Detailed description of the invention
For further describing the present invention, the energy-saving deep cone thickener that be suitable to fine tailings disposal a kind of to the present invention is described in further detail below in conjunction with the accompanying drawings.
A kind of energy-saving deep cone thickener structural representation being suitable to fine tailings disposal of the present invention as shown in Figure 1 is found out, the present invention is a kind of is suitable to the energy-saving deep cone thickener that fine tailings is disposed, be by sandpipe 2, cylinder, overflow pipe 3, ore pulp valve 6, put sandpipe 7 combination and constitute；Being the back cover steel pipe for lower wall perforate to sandpipe 2, overflow pipe 3 is common steel tube or plastic tube, and ore pulp valve 6 is cut-off and the switch controlling lotion uninterrupted；Put the steel pipe composition that sandpipe 7 is variable cross-section；Be inserted into the center on cylinder top to sandpipe 2, the cannelure UNICOM ore pulp valve 6 on overflow pipe 3 and cylinder top is arranged on to be put on sandpipe 7.Described cylinder is the variable cross-section cylinder with certain size and volume and the T-type structure of truncated cone shape combination of a upper big, lower small, that is: cylinder is made up of upper shell 1, lower shell 8 combination, upper shell 1 is combined by top large diameter cylinder and bottom rounding mesa-shaped cylinder and constitutes, lower shell 8 is combined by top small diameter cylinder and lower cone body and constitutes, and puts UNICOM bottom the lower cone body of sandpipe 7 and lower shell 8.Being additionally provided with in the lower cone body bottom side of described lower shell 8 and thicken anti-block apparatus 4 and pressure gauge 5, the probe of pressure gauge 5 is positioned in the Tailings Pulp of cone.The described anti-block apparatus 4 that thickens is the controlled pipeline mechanism of pressure, direction and flow.Pressure gauge 5 be measure, the instrument of pore water pressure size of Tailings Pulp in display lower cone body.
Under normal circumstances, described large diameter cylinder, the diameter of small diameter cylinder compare Ф1: Ф2=(2～4): 1；Described large diameter cylinder, aspect ratio h of small diameter cylinder1: h3=1:(2～4)；Height (the h of described upper shell 11+ h2) and the height (h of lower shell 83+ h4) than be 2:(2.8～3.2).Concrete structure parameter determines according to physicochemical properties, sedimentation concentration result of the test and the production capacity size of different mine tailings (tailings).
When processing-0.074mm content >=80%(wherein-0.037mm content in feed > 50%), weight concentration be 25%～40% Tailings Pulp time, the structural parameters of its optimum are: described large diameter cylinder, the diameter of small diameter cylinder compare Ф1: Ф2=(2.8～3.2)；Described large diameter cylinder, the aspect ratio of small diameter cylinder are 1:(2.1～2.5), the height (h of described upper shell 11+ h2) and the height (h of lower shell 83+ h4) than be 1:(1.5～1.6), now, from put sandpipe 7 discharge mine tailing weight concentration be up to 81.2%, do not occur affecting production phenomenon because of blocking, and from overflow pipe 3 discharge overflow water limpid, all as ore dressing plant feedwater use.
The anti-blocking automatic control system principle schematic that thickens that the present invention as shown in Figure 2 uses is found out, the present invention possibly together be used for opening and closing automatically ore pulp valve 6, thicken anti-block apparatus 4 and ore pulp valve 6 can be controlled, the valve opening size that thickens on anti-block apparatus 4 thicken anti-blocking automatic control system 9.Thicken anti-block apparatus 4, pressure gauge 5, ore pulp valve 6 respectively with thicken anti-blocking automatic control system 9 and be associated.
In actual use, the fine tailings of middle low concentration by being flowed into the center on cylinder top to sandpipe 2, and mine tailing settles in the cylinder of T-type structure, densification, and clear water is flowed into overflow pipe 3 by the cannelure on cylinder top and uses as backwater；High-concentration tailings slurry or lotion are by bottom the lower cone body of lower shell 8 and through ore pulp valve 6 with put sandpipe 7 and flow out, for filling in mine or tailing dry-heaping etc.；When mine tailing overrich produces blocking bottom the lower cone body of lower shell 8, then start and thicken anti-block apparatus 4 several seconds.Bottom the lower cone body of lower shell 8, according to the pore water pressure numerical value shown by pressure gauge 5, mine tailing overrich generation blockage problem can determine that startup thickens opportunity and the time of anti-block apparatus 4.
Claims (3)
1. be suitable to the energy-saving deep cone thickener that fine tailings is disposed, be by sandpipe
(2), cylinder, overflow pipe (3), ore pulp valve (6), put sandpipe (7) combination constitute, give
Sandpipe (2) is inserted into the ring on the center on cylinder top, overflow pipe (3) and cylinder top
Xing Cao UNICOM, puts the bottom UNICOM of sandpipe (7) and cylinder, and ore pulp valve (6) is arranged on puts sand
On pipe (7), it is characterised in that: described cylinder is by upper shell (1), lower shell (8) group
Closing and constitute, upper shell (1) is combined structure by top large diameter cylinder and bottom rounding mesa-shaped cylinder
Becoming, lower shell (8) is combined by top small diameter cylinder and lower cone body and constitutes, described
Large diameter cylinder, the diameter of small diameter cylinder compare Ф1: Ф2=(2.8～3.2): 1, described
Large diameter cylinder, aspect ratio h of small diameter cylinder1: h3=1:(2.1～2.5), described is upper
Height (the h of cylinder (1)1+h2) and the height (h of lower shell (8)3+h4) ratio is 1:
(1.5～1.6)；Be additionally provided with in the lower cone body bottom side of described lower shell (8) thicken anti-blocking
Device (4) and pressure gauge (5), the probe of pressure gauge (5) is positioned at the Tailings Slurry of cone
In body.
A kind of energy-conservation moldeed depth cone being suitable to fine tailings disposal
Thickener, it is characterised in that: the described anti-block apparatus (4) that thickens is pressure, direction and stream
Measure controlled pipeline mechanism.
A kind of energy-conservation moldeed depth cone being suitable to fine tailings disposal
Thickener, it is characterised in that: it is possibly together with being used for opening and closing automatically ore pulp valve (6), adjusting
Dense anti-block apparatus (4) also can control ore pulp valve (6), the valve thickened on anti-block apparatus (4)
Aperture size thicken anti-blocking automatic control system (9).
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| CN201510159703.3A CN104784982B (en) | 2015-04-07 | 2015-04-07 | A kind of energy-saving deep cone thickener being suitable to fine granularity Tailings Disposal |
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| CN201510159703.3A CN104784982B (en) | 2015-04-07 | 2015-04-07 | A kind of energy-saving deep cone thickener being suitable to fine granularity Tailings Disposal |
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| CN104784982B true CN104784982B (en) | 2016-08-17 |
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| CN104971524B (en) * | 2015-07-24 | 2017-01-04 | 北京科技大学 | A kind of Paste thickener underflow circulation homogenizing apparatus |
| CN106039783A (en) * | 2016-08-03 | 2016-10-26 | 山东华联矿业股份有限公司 | Gravity unclassified tailings concentration dehydration apparatus |
| CN106139651B (en) * | 2016-08-31 | 2018-11-23 | 湖南绿脉环保科技有限公司 | A kind of high-efficiency sedimentation device |
| CN108643964B (en) * | 2018-07-10 | 2023-12-22 | 长沙矿山研究院有限责任公司 | Cyclone underflow energy dissipater in graded tailing filling system and energy dissipation method |
| CN112121471B (en) * | 2020-08-10 | 2021-10-12 | 长沙有色冶金设计研究院有限公司 | Method and system for determining optimal thickening mode of differential full tailings |
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| CN2255301Y (en) * | 1995-10-05 | 1997-06-04 | 电力工业部电力建设研究所 | High-efficient rake-free mortar concentrating device |
| CN202654759U (en) * | 2012-07-10 | 2013-01-09 | 马际印 | Deep-cone thickener |
| KR101458339B1 (en) * | 2014-02-04 | 2014-11-04 | 주식회사 에코프라임 | Hopper for sludge precipitation process |
| CN203935646U (en) * | 2014-03-05 | 2014-11-12 | 山东科技大学 | A kind of pillar Hhigh-efficient thickener |
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Address after: 243000 Xitang Road, Ma'anshan Economic Development Zone, Anhui, No. 666 Patentee after: MAANSHAN Mine Research Institute Co.,Ltd. Address before: 243000 No. 666, Xitang Road, Ma'anshan economic and Technological Development Zone, Anhui, China Patentee before: SINOSTEEL MAANSHAN INSTITUTE OF MINING RESEARCH Co.,Ltd. |