CN201802377U - In situ leaching drainage liquid recovering system with secondary tunnels - Google Patents

In situ leaching drainage liquid recovering system with secondary tunnels Download PDF

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Publication number
CN201802377U
CN201802377U CN2010202847310U CN201020284731U CN201802377U CN 201802377 U CN201802377 U CN 201802377U CN 2010202847310 U CN2010202847310 U CN 2010202847310U CN 201020284731 U CN201020284731 U CN 201020284731U CN 201802377 U CN201802377 U CN 201802377U
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China
Prior art keywords
tunnel
liquid collecting
liquid
situ leaching
tunnels
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Expired - Lifetime
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CN2010202847310U
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Chinese (zh)
Inventor
谭尧峰
刘彦
邓国庆
何小林
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Jiangxi Rare Earth and Rare Metals Tungsten Group Holding Co Ltd
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Jiangxi Rare Earth and Rare Metals Tungsten Group Holding Co Ltd
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Abstract

The utility model relates to an in situ leaching drainage liquid recovering system with secondary tunnels, which is characterized by comprising a liquid recovering network. The liquid recovering network comprises a plurality of liquid collecting tunnels and the secondary tunnels arranged at both sides of the liquid collecting tunnels; a plurality of plugging walls are arranged in the liquid collecting tunnels; the bottoms of the plugging walls are communicated to access adits by using conduits; the exits of the conduits are provided with ball valve switches; and the bottoms of the liquid collecting tunnels and the secondary tunnels are provided with seepage control layers. In the detection operation process, the high-pressure gradient is formed between an ore body and an engineering control surface through releasing pressure to form a multiple-pass mother liquor collecting system. The utility model can reduce the recovery rate of ore raw liquor to reduce the loss ratio of the mother liquor, which is beneficial to recovering the rare earth mother liquor, can reduce the environmental-pollution problems and can also improve the rare earth recovery rate.

Description

In-situ leaching drainage and fluid collection system with secondary tunnel
Technical field
The utility model relates to the mining technical field, especially relates to the mineral deposit in-situ leaching liquid collection system of in-situ leaching drainage and fluid collection system, particularly complete compound ion adsorption type rare earth ore.
Background technology
Existing complete compound ion adsorption type re in-situ leaching is received the liquid technology and is mainly contained two kinds.
First kind is received the liquid technology is the artificial false bottom receipts liquid that dams, this technology adopts liquid collecting tunnel, the hole of damming, cement paste the liquid collecting engineering to be carried out engineering measures such as antiseepage processing, artificial mother liquor gathering system is set, but this mother liquor liquid collection system exists some significantly not enough, at first, the seepage control technique in the hole of damming is not mature enough, and often cause damming hole shutoff and impervious material carry out antiseepage to the last half sidewall in the hole of damming, hinder mother liquor and normally collected, strengthened the mother liquor loss late; Secondly, because the limitation of the control degree of engineering own, control can not be made to oozing under the mother liquor well in the hole of damming; At last, there be liquid and the harmony of rare earth mother solution on loss late before the ore deposit in this mother liquor gathering system, is unfavorable for the recovery of rare earth mother solution, thereby has reduced rare earth yield, has formed the bottleneck that rare earth yield is difficult to improve, and also will produce problems such as environment pollution.
Second kind of receipts liquid technology is saturated to reach for adopting past artificially lean ore layer and not having the water filling of ore bed band, makes it to form the technology of artificial water seal base plate.The disadvantage of artificial water seal base plate is an excessive cycle, the tail washings acquisition time is long, mother liquid concentration is low, implementation condition is harsh, implement difficulty greatly, particularly is difficult to the stability of massif side slope is made better controlled, so, in the mining activity of reality, artificial water seal base plate seldom uses.
The utility model content
The purpose of this utility model provides a kind of in-situ leaching drainage and fluid collection system with secondary tunnel, liquid major part (80%) is infiltrated below the Engineering Control face before making the ore deposit, to improve the water content below the Engineering Control face, thereby reaching increases before the ore deposit liquid and infiltrates lean ore or do not have the ratio of mine belt and reduce the ratio that mother liquor permeates the ground, thereby reaches the purpose of the raising rare earth mother solution rate of recovery.Native system can reduce the loss late of mother liquor, helps the recovery of rare earth mother solution, can reduce problem of environmental pollution, also can improve rare earth yield.
For realizing the purpose of this utility model, the utility model provides a kind of in-situ leaching drainage and fluid collection system with secondary tunnel, it is characterized in that: comprise and receive the liquid network, described receipts liquid network comprises many liquid collecting tunnels and presses close to the secondary tunnel of tunnel setting in both sides, liquid collecting tunnel, described liquid collecting is provided with a plurality of block walls in the tunnel, to access adit, conduit is provided with the ball valve switch in the exit with conduit UNICOM in the bottom;
In the technical solution of the utility model, according to ore body list prospect pit grade situation and grade plane distribution situation, the water of hydration mechanics principle is provided with the liquid collecting tunnel, and the position in described liquid collecting tunnel is determined according to following principle:
1) height of liquid collecting tunnel in ore body is between the ore body bottom 0.015%~0.02%;
2) the liquid collecting tunnel is moved towards to arrange along massif;
3) position in liquid collecting tunnel is by the good position of ore body grade.
Secondary tunnel and liquid collecting tunnel form multichannel mother liquor drainage and fluid collection chain of command.
The gradient in described liquid collecting tunnel is 1~2 °, described liquid collecting tunnel be 20 meters of 2~3 parallel, spacings, along the liquid collecting tunnel of massif trend or tendency.
5~10 meters at interval between described secondary tunnel is 90 ° of angles or parallel each other with the liquid collecting tunnel.
Described block wall embeds around the tunnel, and the block wall back is provided with support post.
Described block wall is anterior with anti-blocking material filling.
It is trapezoidal that the cross section in described liquid collecting tunnel and secondary tunnel all is, and the following bottom width in liquid collecting tunnel, going up bottom width, to be respectively 1.4~1.6 times of secondary tunnel, the height in liquid collecting tunnel be 0.8~1.0 times of secondary tunnel.Described liquid collecting tunnel and bottom, secondary tunnel half down are provided with impervious barrier.In detecting operation or manufacturing process, between ore body and Engineering Control face, form high pressure gradients by release pressure, form the mother liquor gathering system of multi-path.
Described block wall is for embedding the impermeable wall around the tunnel, prevent the ore deposit before liquid flow out, make before the ore deposit liquid along oozing under the Engineering Control face, the construction of caving in of prevention tunnel has been carried out in the block wall front and back.Direction at the past liquid collecting access adit of work plane is provided with a block wall every 20~30 meters, till the distance of 10 meters of distance access adits, a plurality of block walls can be set.The position of block wall can be also adjacent with it before the roadway support post, can prevent block wall to cave in like this.Block wall can adopt common brick to build embedding tunnel mode all around and be provided with.
Block wall is anterior with anti-blocking material filling, and the bottom is connected to the liquid collecting access adit with conduit, simultaneously, should also be noted that the clogging-preventing measures of carrying out tunnel and conduit.With the control of ball valve switch, the ball valve switch is used for detecting whether mother liquor is arranged conduit, in detecting operation or manufacturing process, forms high pressure gradients by release pressure between ore body and Engineering Control face in the exit.The preceding bottom of described block wall conduit is used the ball valve switch in the exit, predominant use is the collection that blends mother liquor before the control ore deposit under the liquid.Described anti-blocking material can be a faggot.Described conduit can be plastic coil or pvc pipe.
In process of production, whether have mother liquor check to conduit every day, promptly discharges liquid before the ore deposit, and purpose is that liquid before the ore deposit is caught up with below the Engineering Control face as much as possible, is reduced in the ability of oozing under the Engineering Control face place mother liquor and reduces barometric gradient.Decontrol the ball valve switch when mother liquor occurring, release pressure forms the high pressure gradients between ore deposit soil and the Engineering Control face, facilitates the mother liquor multi-path to form, and further reduces the possibility of oozing under the mother liquor; As do not have mother liquor then to close ball valve, and needing to grasp every day flexibly and check number of times according to the characteristics of liquid before the ore deposit, every day is at most once.By repeatedly checking, finally form the multi-path mother liquor and reclaim chain of command, this chain of command finally forms the mother liquor gathering system of the many mother liquor drainage channel of a water seal, high pressure gradients with saturated or saturated water seal face under it nearly.
Preferably, be provided with 2~3 based on the liquid collecting tunnel along massif trend or tendency, by the good position of ore body grade, its gradient is 1~2 °, oozes with the following of liquid before helping the ore deposit as much as possible.
Preferably, under specific receipts liquid geological conditions, block wall can be set, liquid infiltrated the water seal of formation below Engineering Control face base plate along the ore body between the tunnel before employing static pressure grouting method made most of ore deposit.
Preferably, a plurality of liquid collecting tunnel is the parallel liquid collecting tunnel of 20 meters of spacings.
More preferably, it is trapezoidal that the cross section in liquid collecting tunnel and secondary tunnel all is, and the following bottom width in liquid collecting tunnel, going up bottom width, to be respectively 1.4~1.6 times of secondary tunnel, the height in liquid collecting tunnel be 0.8~1.0 times of secondary tunnel.Preferably, cross section, liquid collecting tunnel is 1.2 meters of following bottom width, 0.7 meter of last bottom width, and high 1.7 meters trapezoidal liquid collecting tunnel, the cross section in secondary tunnel is 0.8 meter of following bottom width, 0.4 meter of last bottom width is high 1.6~1.7 meters.
More preferably, half adopts dilution water mud to handle carrying out antiseepage under the bottom of liquid collecting tunnel and secondary tunnel.
Preferably, in both sides, liquid collecting tunnel secondary tunnel is set, 5~10 meters at the interval between secondary tunnel is 90 ° of angles with the liquid collecting tunnel.
Preferably, in the liquid collecting tunnel with the roadway support post before and position adjacent with it, adopt common brick to build to embed the block wall around the tunnel that block wall is set.
Preferably, block wall is anterior to be filled up with anti-blocking material (faggot), and its underpart is connected to access adit with 1.5~3 cun plastic coils or pvc pipe.
Preferably, in detecting operation or manufacturing process, repeatedly the switching manipulation of ball valve switch is made up, what formed Engineering Control face and ore deposit soil reduces and increases barometric gradient combination, between ore body and Engineering Control face, form high pressure gradients by release pressure, formed the mother liquor gathering system of the multi-path of water seal, high pressure gradients.
According to system of the present utility model, effectively utilized liquid before the ore deposit in the ion adsorption type re in-situ leaching, contain moisture about 15% at granite weathering crust or volcanic tuff ion adsorption type rare earth ore ore deposit soil, when implementing the fluid injection of in-situ leaching geotechnical engineering static pressure grouting method, driven out of at first, be referred to as liquid before the ore deposit.Liquid major part (about more than 80%) was infiltrated lean ore and is not had the ore bed band before native system made the ore deposit, and by reducing and strengthening barometric gradient blocked operation between liquid collection engineering chain of command and the ore deposit soil, form multichannel mother liquor drainage and fluid collection chain of command, finally reach the water content that improves lean ore and do not have the ore bed band, stop under the rare earth mother solution and ooze, reduce the consumption that soaks the ore deposit agent, reduced the loss late of mother liquor.Adopt the utility model system to form the multichannel mother liquor and reclaim chain of command, help the recovery of rare earth mother solution, reduced problem of environmental pollution.Theoretical and actual the use all confirms, improves more than at least 10% according to the rare earth resources rate of recovery of the present utility model, promptly improved rare earth yield.
Description of drawings
Fig. 1 is the tunnel vertical view according to auxiliary connection tunnel, liquid collecting of the present utility model tunnel
The specific embodiment
Referring to accompanying drawing 1, the specific implementation method of technical solutions of the utility model is as follows: distribute and hydraulic principle according to the ore body grade, height in ore body is between the ore body bottom 0.015%~0.02%, to move towards or tendency along massif, as much as possible by grade distribute in the plane high position be assist liquid collecting tunnel 1 is set, its gradient is 1~2 °.5~10 meters secondary tunnel 8 is set at interval, both sides, liquid collecting tunnel, can implements the cement paste seepage control measure in 1 bottom in the tunnel.A plurality of support posts 7 can be set in the both sides in liquid collecting tunnel 1.After having constructed in liquid collecting tunnel 1, every 20 meters and implement block wall 3, thereby liquid collecting tunnel 1 is divided into plurality of sections in the front of nearby support post 7.The bottom with coil pipe or pvc pipe 4 UNICOMs to access adit, to collect mother liquor.The every section liquid collecting tunnel 1 that is separated out by 3 of block walls all is provided with coil pipe or the pvc pipe 4 of UNICOM to access adit.The tunnel of block wall 3 fronts (away from a side of ball valve 6) fills up anti-blocking faggot 5, carrying out anti-clogging handles, at coil pipe or pvc pipe 4 exit access valves 6 switches, in detecting operation or manufacturing process, liquid is along oozing under the chain of command place of liquid collecting tunnel 1 and 8 formation of secondary tunnel before making the ore deposit, when mother liquor, just open the formation liquid collection system, between ore body and Engineering Control face, form high pressure gradients, form the mother liquor gathering system of multi-path by release pressure.

Claims (8)

1. in-situ leaching drainage and fluid collection system with secondary tunnel, it is characterized in that: comprise and receive the liquid network, described receipts liquid network comprises many liquid collecting tunnels (1) and the secondary tunnel (8) that is provided with in both sides, liquid collecting tunnel, a plurality of block walls (3) are set in the described liquid collecting tunnel, to access adit, conduit is provided with ball valve switch (8) in the exit with conduit (4) UNICOM in the bottom.
2. in-situ leaching drainage and fluid collection according to claim 1 system is characterized in that: the position in described liquid collecting tunnel is determined according to following principle:
1) height of liquid collecting tunnel in ore body is between the ore body bottom 0.015%~0.02%;
2) the liquid collecting tunnel is moved towards to arrange along massif;
3) position in liquid collecting tunnel is by the ore body grade high position that distributes in the plane.
3. in-situ leaching drainage and fluid collection according to claim 1 system, it is characterized in that: the gradient in described liquid collecting tunnel is 1~2 °, described many liquid collecting tunnels be 20 meters of 2~3 parallel, spacings, along the liquid collecting tunnel of massif trend or tendency.
4. in-situ leaching drainage and fluid collection according to claim 1 system is characterized in that: 5~10 meters at the interval between described secondary tunnel, and the liquid collecting tunnel is between 90 ° of angles or the secondary tunnel and is parallel to each other.
5. in-situ leaching drainage and fluid collection according to claim 1 system is characterized in that: described block wall is provided with support post (7) for embedding the impermeable wall around the tunnel before and after the block wall.
6. in-situ leaching drainage and fluid collection according to claim 1 system is characterized in that: the tunnel of described block wall front is with anti-blocking material (5) filling.
7. in-situ leaching drainage and fluid collection according to claim 1 system, it is characterized in that: the cross section in liquid collecting tunnel and secondary tunnel all is trapezoidal, and the following bottom width in liquid collecting tunnel, going up bottom width, to be respectively 1.4~1.6 times of secondary tunnel, the height in liquid collecting tunnel be 0.8~1.0 times of secondary tunnel.
8. in-situ leaching drainage and fluid collection according to claim 1 system is characterized in that: described liquid collecting tunnel and bottom, secondary tunnel half down are provided with impervious barrier.
CN2010202847310U 2010-08-03 2010-08-03 In situ leaching drainage liquid recovering system with secondary tunnels Expired - Lifetime CN201802377U (en)

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Application Number Priority Date Filing Date Title
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012016513A1 (en) * 2010-08-03 2012-02-09 江西稀有金属钨业控股集团有限公司 Liquid guiding and collection process with secondary channels for in situ leaching
CN105112652A (en) * 2015-08-10 2015-12-02 江西理工大学 Structure of channel for recovering in-situ leaching mother solution of rare earth ore

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012016513A1 (en) * 2010-08-03 2012-02-09 江西稀有金属钨业控股集团有限公司 Liquid guiding and collection process with secondary channels for in situ leaching
CN105112652A (en) * 2015-08-10 2015-12-02 江西理工大学 Structure of channel for recovering in-situ leaching mother solution of rare earth ore

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Granted publication date: 20110420