CN102944509A - Testing device for testing corrosion of rainwater to stockpiling body of tailing paste - Google Patents
Testing device for testing corrosion of rainwater to stockpiling body of tailing paste Download PDFInfo
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- CN102944509A CN102944509A CN2012104472996A CN201210447299A CN102944509A CN 102944509 A CN102944509 A CN 102944509A CN 2012104472996 A CN2012104472996 A CN 2012104472996A CN 201210447299 A CN201210447299 A CN 201210447299A CN 102944509 A CN102944509 A CN 102944509A
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Abstract
The invention discloses a testing device for testing the corrosion of rainwater to a stockpiling body of tailing paste, belonging to the field of stockpiling of surface tailing paste and mineral engineering. The testing device mainly comprises a testing bracket, a water supplying device, a control device, a spraying device, a stockpiling device, a measuring device and a liquid collecting device, wherein the water supplying device comprises a water pipe, a water storage groove and a water pump; the control device comprises a main control valve, an automatic timing switch, a flow meter, a pressure meter and a secondary control valve; the spraying device comprises a water feeding pipeline, spraying heads and a branch control valve; the stockpiling device comprises a paste stockpiling groove, a moving shaft at the bottom of a groove body, an angle adjusting shaft at the top of the groove body and limiting holes; the liquid collecting device comprises a liquid collecting groove and a liquid collecting barrel; the testing device comprises a TDR (Time-Delay Relay) probe, a data line and a data storage; the surface of an internal steel plate of the stockpiling groove body is provided with a diamond pattern, and the upper part of a side steel plate at the bottom of the stockpiling groove body is provided with a water discharging hole. The testing device disclosed by the invention has the advantages that the structure is simple, the paste stockpiling slope can be adjusted, the spraying amount and the spraying time can be adjusted, the slurry of the tailing is effectively collected, data is automatically acquired, further the model experimental study on the disaster formation and the evolution process of the stockpiling body of the tailing paste is further realized.
Description
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Technical field
The present invention relates to a kind of tailings paste of testing and store up the test unit that body is subjected to rain erosion, be mainly used in rainwater and tailings paste is stored up body corrode the research of (washing away) attribute testing, belong to that the earth's surface tailings paste is stored up and the Mineral Engineering field.
Background technology
The ore that mining goes out is through after the ore-dressing practice, and remaining solid waste is mine tailing, and it is generally discharged with the ore pulp state.Mine tailing is generally directly stored up in the earth's surface or is used for underground filling.Usually mine tailing is paid the utmost attention to underground filling, but underground filling is subject to multiple condition restriction, and many mines can't be adopted.Therefore can only build on the earth's surface Tailings Dam of storing up mine tailing.There is more than 12600 of Tailings Dam in China so far, stores up approximately more than 80 hundred million tons of all kinds of mine tailings, and with the speed increment in nearly 600,000,000 tons of every year.Numerous tailings impoundment like this has not only taken a large amount of arable lands in the earth's surface, what is more important forms great safety and environment protection hidden danger.U.S. Clark University's public hazards evaluation group studies show that, the harm of Tailings Dam accident ranks the 18th in the hidden danger of the 93 kinds of accidents in the world, public hazards.It is only second to the harm such as nuclear explosion, nerve gas, nuclear radiation, and more serious than other 60 kinds of disasters such as aircrush, fire, causes that directly the above dead accident of hundred people happens occasionally.Cause 277 people death, nineteen ninety-five Guyana one gold mine tailings storehouse dam break to cause that pollution of estuary causes 900 people dead such as Xiangfen, Shanxi in 2008 Tailings Dam dam-break accident.
Weight concentration is different during according to tailings discharging, and mine tailing earth's surface method of disposal can be divided into that conventional wet row (protocercal tail ore pulp), lotion store up, three kinds of dry pilings.Conventional wet row is that the last mortar after the ore dressing is directly entered Tailings Dam, because the existence of large water gaging causes the problems such as dam stability, environmental pollution, 90% Tailings Dam accident all is to plant thus discharging modes to cause; At the beginning of the 80's of 20th century, there is the mine that last mortar is concentrated and the state of press filtration to filter cake, and uses the modes such as belt or automobile to be delivered to Tailings Dam, but because applicable elements is limited, the problems such as apparatus expensive, technique is not promoted; Meanwhile, people begin to pay attention to lotion and store up this new technology, are about to the slurry that mine tailing is concentrated into " toothpaste " shape, enter Tailings Dam.Lotion do not emanate, not stratified, stable and have good plasticity and mobile characteristics, reduced the possibility of Tailings Dam dam break, to surrounding resident safety with environmental impact all is far smaller than traditional tailing so that this technology, therefore be subject to the welcome in more and more mines.
But now thrown in the world the project of extensive lotion tailings impoundment of people operation and few, at present according to statistics, 19 of engineerings are stored up in Australia in existing 32 lotion mine tailing ground, account for 60% of sum.At present, this mode of storing up mainly concentrates on the arid area, only has Canadian half humid region to take this form of storing up.Also be mainly used in north arid, semiarid zone in China, such as Ebony Hill, Inner Mongol copper-molybdenum.Tracing it to its cause mainly is that tailings paste is stored up rear rainwater to its erosion and then affected its stability, and therefore present major applications is in arid, semiarid zone.Yet northern China, southern climates differ greatly, and southern annual rainfall is large, have limited tailings paste and have stored up technology in the application of southern rainy regions.
Summary of the invention
To store up body at the southern rainy regions tailings paste and be subject to a series of engineerings and the environmental problem that cause behind the rain erosion (washing away) in order to research and solve.This provides a kind of simple in structure, easy to operate, and the test tailings paste that is applicable to indoor use is stored up the test unit that body is subjected to rain erosion.
A kind of tailings paste of testing is stored up the test unit that body is subjected to rain erosion, comprises test bracket, water supply installation, control device, flusher, stores up device, measurement mechanism, liquid collector.Flusher is arranged at directly over the test bracket 19, stores up device and is arranged at test bracket 19 middle and lower parts, just in time is positioned under the flusher.Water supply installation, control device are arranged at test bracket 19 sides.Liquid collector is made of intercepting basin 14 and liquid-collecting barrel 15, and intercepting basin 14 is arranged at test bracket 19 sides, is positioned to store up the device below, and liquid-collecting barrel 15 is positioned at intercepting basin 14 two ends, so that the collection of last mortar.Proving installation then is made of testing sensor 16 and data-carrier store 11, and testing sensor 16 is arranged at tailings paste and stores up in the body 17, and data-carrier store 11 is arranged at test bracket 19 sides.
Further, the rectangular frame that test bracket 19 of the present invention is welded for angle steel, is stored up device, liquid collector, measurement mechanism and is used in conjunction with test bracket and water supply installation, control device, flusher, can each device meets and keeps stablizing.
Further, water supply installation of the present invention is made of feed pipe 7, aqua storage tank 1, water pump 2, and water pump 2 is arranged in the aqua storage tank 1, and water pump 2 is pumped to flusher with water by water pipe 7.
Further, control device of the present invention is made of master control valve 3, automatic time switch 5, flowmeter 4, tensimeter 6, secondary control valve 8.Master control valve 3 one ends are connected with water pump 2 feed pipes 7, and the other end is connected with flowmeter 4 by feed pipe 7.Flowmeter 4 other ends are connected with automatic time switch 5 by feed pipe 7.Automatic time switch 5 one ends are connected with tensimeter 6 by water pipe 7, and the other end is connected with flowmeter 4 by feed pipe 7.Tensimeter 6 one ends are connected with secondary control valve 8 by water pipe 7, and the other end is connected with automatic time switch 5 by water pipe 7.Can automatically regulate spraying time, measure pressure and uninterrupted in the feed pipe by control device.
Further, flusher of the present invention is made of water inlet minute pipeline 9, shower nozzle 10, shunt by-pass valve control 22.Each water inlet 9 arranges row's shower nozzle 10 along separate routes, is provided with along separate routes along separate routes by-pass valve control 22 between water inlet pipe 9 and the main-supply 7.Flusher is provided with 3 ~ 6 row's shower nozzles 10, and every row is provided with 2 ~ 5 shower nozzles 10, is spaced apart 25 ~ 60cm between the shower nozzle 10.The sprinkling amount is opened quantity by main-supply flow, the combination of different shower nozzle 10 models, water inlet shunt 9 and is jointly controlled simulated rainfall intensity.
Further, the present invention stores up device and stores up groove 18, cell body bottom movable axis 13, cell body apex angles regulating shaft 20, spacing hole 21 by lotion and consist of.Cell body bottom movable axis 13 is connected with test bracket 19, cell body apex angles regulating shaft 20 by from different spacing hole 21 connections, making lotion store up groove 18 angles can regulate between 0 ~ 30 °.Lotion is stored up groove 18 and is formed by Plate Welding, and cell body 18 inner surface of steel plate are provided with rhombus lines 25, and cell body 18 bottom sides steel plate tops arrange weep hole 24.
Further, liquid collector of the present invention is made of intercepting basin 14 and liquid-collecting barrel 15, and intercepting basin 14 is rolled by iron sheet and forms, and is convenient to collect the Tailings Slurry behind the rain erosion.Liquid-collecting barrel 15 is arranged at intercepting basin 14 outlet belows, is convenient to store the Tailings Slurry that flows out through intercepting basin 14.
Further, measurement mechanism of the present invention is made of TDR probe 16, data line 12, data-carrier store 11.TDR probe 16 is arranged at lotion and stores up in the body 17, carries out data acquisition.The rear data of collection transfer to data-carrier store 11 through data line 12 and store.
Owing to having adopted above technical scheme, tailings paste of the present invention is stored up the test unit that body is subjected to rain erosion, stores up cell body angular adjustment axle 20 by the adjusting lotion and can change cell body 18 angles; Use control device and flusher can regulate intensity of spray irrigation and spraying time; To analyze its physics, chemical characteristic by the mine tailing that liquid collector can be collected after the erosion; Can dynamic test store up different depth moisture content change situation in the body at different rainfall intensities, different rain time tailings paste by measurement mechanism.
Tailings paste of the present invention is stored up the test unit that body is subjected to rain erosion, have simple in structure, the adjusting paste body is stored up the gradient, can regulate sprinkling amount and time, effectively collect mine tailing slurries, automatic data collection.And then realize that formation and the evolution process of tailings paste being stored up body its disaster under condition of raining carry out model investigation, determine and optimize to provide foundation for store up technological parameter on southern rainy regions tailings paste earth's surface.
Description of drawings
Accompanying drawing 1 is structural representation of the present invention
Accompanying drawing 2 is flusher structural representations of the present invention
Accompanying drawing 3 is that test bracket of the present invention, lotion are stored up, measurement, liquid collector compages schematic diagram
Accompanying drawing 4 is that lotion of the present invention is stored up the groove structural representation
Embodiment
The below is described further the present invention, but protection scope of the present invention is not limited to the following scope of describing embodiment.
As shown in Figure 1, the present invention by test bracket, water supply installation, control device, flusher, store up device, measurement mechanism, liquid collector and consist of.Introduce the specific embodiment of the present invention below in conjunction with example.
Adopt certain flotation wholegrain level mine tailing, be made into tailings paste according to the design proportioning, carry out rainwater tailings paste is stored up the body erosion test.
(1) the lotion sample is stored up: regulate lotion and store up groove apex angles regulating shaft 20, after lotion is stored up groove 18 and is adjusted to a certain angle, by the spacing hole 21 on the test bracket 19 lotion is stored up groove 18 fixing.The tailings lotion that configures is in advance stored up in cell body 18, tested after depositing different time according to testing requirements.
(2) proving installation is installed: lotion is stored up after storing up groove 18, TDR probe 16 is inserted lotion store up body 17, will pop one's head in by wire 12 is connected with data-carrier store 11.
(3) rainwater sprays and regulation and control: in advance water is injected aqua storage tank 1, start the water pump 2 that places tank 1 during test, determine spraying time by setting automatic time switch 5, open successively master control valve 3, and secondary control valve 8, water inlet is by-pass valve control 22 along separate routes.Observe flowmeter 4, tensimeter 6 readings, control sprinkling amount size by control secondary control valve 8 switch size, water inlet shunt 9 numbers, shower nozzle 10 unlatching numbers and shower nozzle 10 types, make water droplet evenly be sprayed to lotion and store up body 17 surfaces.
(4) tailings corrodes slurries collection and water cut test: water evenly is sprayed to lotion through shower nozzle 10 and stores up body 17 surfaces, (washing away) corroded on lotion 17 surfaces, under the certain slope condition, along store up body 17 domatic flow downward, on the other hand constantly to store up body 17 inside permeate on the one hand by spray water for spray water.Tailings Slurry is stored up trench bottom weep hole 24 by lotion and is flowed out after spray water corrodes, and after intercepting basin 14 compiled, centralized stores was in liquid-collecting barrel 15.Rainwater causes that water percentage changes during to lotion 17 internal penetration, tests by 16 pairs of lotion different depth water percentage of TDR probe, is stored in the data-carrier store 11 by data line 12.
Claims (8)
1. test tailings paste and store up the test unit that body is subjected to rain erosion for one kind, its feature comprises: test bracket, water supply installation, control device, flusher, store up device, measurement mechanism, liquid collector; Flusher is arranged at directly over the test bracket (19), stores up device and is arranged at test bracket (19) middle and lower part, is positioned under the flusher; Water supply installation, control device are arranged at test bracket (19) side; Liquid collector is made of intercepting basin (14) and liquid-collecting barrel (15), and intercepting basin (14) is arranged at test bracket (19) side, is positioned to store up the device below, and liquid-collecting barrel (15) is positioned at intercepting basin (14) two ends; Proving installation then is made of testing sensor (16) and data-carrier store (11), and testing sensor (16) is arranged at tailings paste and stores up (17) in the body, and data-carrier store is arranged at test bracket (19) side.
2. a kind of tailings paste of testing according to claim 1 is stored up the test unit that body is subjected to rain erosion, it is characterized in that the rectangular frame that test bracket (19) is welded for angle steel, test bracket and water supply installation, control device, flusher, store up device, liquid collector, measurement mechanism and be used in conjunction with.
3. a kind of tailings paste of testing according to claim 1 is stored up the test unit that body is subjected to rain erosion, it is characterized in that water supply installation is made of feed pipe (7), aqua storage tank (1), water pump (2), water pump (2) is arranged in the aqua storage tank (1), and water pump (2) is pumped to flusher with water by feed pipe (7).
4. a kind of tailings paste of testing according to claim 1 is stored up the test unit that body is subjected to rain erosion, it is characterized in that control device is made of master control valve (3), automatic time switch (5), flowmeter (4), tensimeter (6), secondary control valve (8); Master control valve (3) one ends are connected with water pump (2), feed pipe (7), and the other end is connected with flowmeter (4) by feed pipe (7); Flowmeter (4) other end is connected with automatic time switch (5) by feed pipe (7); Automatic time switch (5) other end is connected with tensimeter (6) by feed pipe (7); Tensimeter (6) other end is connected with secondary control valve (8) by water pipe (7); Water supply time can be set, measure pressure size and flow in the feed pipe (7) by control device.
5. a kind of tailings paste of testing according to claim 1 is stored up the test unit that body is subjected to rain erosion, it is characterized in that flusher is made of water inlet minute pipeline (9), shower nozzle (10), shunt by-pass valve control (22); Each water inlet minute pipeline (9) arranges row's shower nozzle (10), be provided with along separate routes along separate routes by-pass valve control (22) between water inlet pipe (9) and the feed pipe (7), a water inlet minute pipeline (9) is fixed on the test bracket (19) by pipe clamp (23); Flusher is provided with 3 ~ 6 row's shower nozzles (10), and every row is provided with 2 ~ 5 shower nozzles (10), and shower nozzle is spaced apart 25 ~ 60cm between (10); The sprinkling amount is opened quantity by feed pipe (7) flow, the combination of different shower nozzle (10) model, water inlet minute pipeline (9) and is jointly controlled simulated rainfall intensity.
6. a kind of tailings paste of testing according to claim 1 is stored up the test unit that body is subjected to rain erosion, it is characterized in that storing up device and store up groove (18) by lotion, cell body bottom movable axis (13), cell body apex angles regulating shaft (20), spacing hole (21) consists of, cell body bottom movable axis (13) is connected with test bracket (19), cell body apex angles regulating shaft (20) is connected with spacing hole (21), by regulating the spacing hole (21) of diverse location, making lotion store up groove (18) angle can regulate between 0 ~ 30 °; Lotion is stored up groove (18) and is formed by Plate Welding, and the inner surface of steel plate of cell body is provided with rhombus lines (25), and cell body bottom sides steel plate top arranges weep hole (24).
7. a kind of tailings paste of testing according to claim 1 is stored up the test unit that body is subjected to rain erosion, it is characterized in that liquid collector is made of intercepting basin (14) and liquid-collecting barrel (15), intercepting basin (14) is rolled by iron sheet and forms, and is convenient to collect the Tailings Slurry behind the rain erosion; Liquid-collecting barrel (15) is arranged at intercepting basin (14) outlet below, is convenient to the Tailings Slurry that storage is flowed out through intercepting basin (14).
8. a kind of tailings paste of testing according to claim 1 is stored up the test unit that body is subjected to rain erosion, it is characterized in that measurement mechanism is made of TDR probe (16), data line (12), data-carrier store (11); TDR probe (16) is arranged at lotion and stores up in the body (17), carries out data acquisition.
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| CN201210447299.6A CN102944509B (en) | 2012-11-09 | 2012-11-09 | A kind of tailings paste of testing stores up the body assay device by rain erosion |
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Cited By (15)
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| CN103898865A (en) * | 2014-04-16 | 2014-07-02 | 石家庄铁道大学 | Tailing pond model test simulation system |
| CN104123875A (en) * | 2014-06-26 | 2014-10-29 | 重庆大学 | Experiment device and experiment method for overtopping failure simulation for tailing dam |
| CN104535739A (en) * | 2014-12-25 | 2015-04-22 | 西南科技大学 | Indoor manual simulation acid rain test device |
| CN104634683A (en) * | 2015-01-27 | 2015-05-20 | 中国石油化工股份有限公司 | Sample washing device |
| CN104849413A (en) * | 2015-05-29 | 2015-08-19 | 北京科技大学 | Device for monitoring thermo-hydro-mechanical-chemical multi-field properties of stope paste filling material |
| CN105297785A (en) * | 2015-04-30 | 2016-02-03 | 中国电力科学研究院 | Foundation detecting device and detecting method |
| CN105699432A (en) * | 2016-01-13 | 2016-06-22 | 太原理工大学 | Paste filling effect evaluating method |
| CN106093316A (en) * | 2016-08-22 | 2016-11-09 | 昆明理工大学 | Under a kind of rainfall, tailing dam overflows dam analogue experiment installation and experimental technique |
| CN107014732A (en) * | 2017-04-19 | 2017-08-04 | 辽宁科技大学 | A kind of Caving Method with Large Space coating infiltration experimental provision and method |
| CN107860893A (en) * | 2017-12-08 | 2018-03-30 | 中国地质大学（武汉） | A kind of adjustable indoor rainfall side slope model test apparatus of flow |
| CN108645745A (en) * | 2018-05-16 | 2018-10-12 | 南昌大学 | A kind of latent corrosion test instrument and its analog detection method |
| CN109283316A (en) * | 2018-10-23 | 2019-01-29 | 昆明理工大学 | A kind of rainfall system for the test of open-pit slope analog simulation |
| CN109342693A (en) * | 2018-10-23 | 2019-02-15 | 湖南科技大学 | A kind of soil solidification dust suppression experiment porch |
| CN111157423A (en) * | 2020-01-03 | 2020-05-15 | 北京科技大学 | In-situ real-time representation device and method for liquid holdup of ore heap |
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| CN103898865B (en) * | 2014-04-16 | 2015-03-04 | 石家庄铁道大学 | Tailing pond model test simulation system |
| CN103898865A (en) * | 2014-04-16 | 2014-07-02 | 石家庄铁道大学 | Tailing pond model test simulation system |
| CN104123875A (en) * | 2014-06-26 | 2014-10-29 | 重庆大学 | Experiment device and experiment method for overtopping failure simulation for tailing dam |
| CN104535739A (en) * | 2014-12-25 | 2015-04-22 | 西南科技大学 | Indoor manual simulation acid rain test device |
| CN104634683B (en) * | 2015-01-27 | 2017-11-21 | 中国石油化工股份有限公司青岛安全工程研究院 | A kind of sample flushing device |
| CN104634683A (en) * | 2015-01-27 | 2015-05-20 | 中国石油化工股份有限公司 | Sample washing device |
| CN105297785A (en) * | 2015-04-30 | 2016-02-03 | 中国电力科学研究院 | Foundation detecting device and detecting method |
| CN104849413A (en) * | 2015-05-29 | 2015-08-19 | 北京科技大学 | Device for monitoring thermo-hydro-mechanical-chemical multi-field properties of stope paste filling material |
| CN105699432A (en) * | 2016-01-13 | 2016-06-22 | 太原理工大学 | Paste filling effect evaluating method |
| CN106093316A (en) * | 2016-08-22 | 2016-11-09 | 昆明理工大学 | Under a kind of rainfall, tailing dam overflows dam analogue experiment installation and experimental technique |
| CN107014732A (en) * | 2017-04-19 | 2017-08-04 | 辽宁科技大学 | A kind of Caving Method with Large Space coating infiltration experimental provision and method |
| CN107014732B (en) * | 2017-04-19 | 2023-10-17 | 辽宁科技大学 | Caving method overburden water seepage experimental device and method |
| CN107860893A (en) * | 2017-12-08 | 2018-03-30 | 中国地质大学（武汉） | A kind of adjustable indoor rainfall side slope model test apparatus of flow |
| CN108645745A (en) * | 2018-05-16 | 2018-10-12 | 南昌大学 | A kind of latent corrosion test instrument and its analog detection method |
| CN109283316A (en) * | 2018-10-23 | 2019-01-29 | 昆明理工大学 | A kind of rainfall system for the test of open-pit slope analog simulation |
| CN109342693A (en) * | 2018-10-23 | 2019-02-15 | 湖南科技大学 | A kind of soil solidification dust suppression experiment porch |
| CN111157423A (en) * | 2020-01-03 | 2020-05-15 | 北京科技大学 | In-situ real-time representation device and method for liquid holdup of ore heap |
| CN112923860A (en) * | 2021-01-28 | 2021-06-08 | 北京科技大学 | Experimental device and method for simulating surface stacking behavior of high-concentration tailing slurry |
| CN112923860B (en) * | 2021-01-28 | 2022-04-08 | 北京科技大学 | Experimental device and method for simulating surface stacking behavior of high-concentration tailing slurry |
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