CN110824145A

CN110824145A - Tailing leaching device capable of realizing uniform leaching and layered sampling

Info

Publication number: CN110824145A
Application number: CN201911179459.1A
Authority: CN
Inventors: 杜翠凤; 常宝孟; 常雁红; 王远; 孙明康; 郭丽丽; 魏丁一; 王璠; 于婷
Original assignee: University of Science and Technology Beijing USTB
Current assignee: University of Science and Technology Beijing USTB
Priority date: 2019-11-27
Filing date: 2019-11-27
Publication date: 2020-02-21

Abstract

The invention discloses a tailing leaching device capable of realizing uniform leaching and layered sampling, which comprises a base, wherein a supporting column is fixedly connected to the upper surface of the base, a plurality of sliding sleeves are sleeved on the supporting column, screw holes are formed in the sliding sleeves, bolts are connected with the screw holes in a threaded manner, and the outer side wall of each sliding sleeve is fixedly connected with one end of a connecting rod. Utilize the clip to make each leaching post to dismantle respectively, simultaneously under the effect of bolt and screw, the bolt of roll-out makes the sliding sleeve can slide on the stand, thereby be convenient for highly adjust wantonly between a plurality of leaching posts, can not co-altitude select the tailings sample, under the effect of clamp splice, can keep the stability of hydrops bottle, avoid the mistake to bump and lead to the hydrops bottle to empty, convenient and fast more when weighing the hydrops bottle simultaneously, excellent in use effect, but set up horizontal water distributor in the leaching post and evenly distribute the water and solve the uneven problem of leaching.

Description

Tailing leaching device capable of realizing uniform leaching and layered sampling

Technical Field

The invention belongs to the field of research on tailings and surrounding soil in a tailing pond, and particularly relates to a tailing leaching device capable of uniformly leaching and performing layered sampling.

Background

As mining intensity increases, more and more tailings are produced, with most of the tailings being deposited into tailings ponds, except for a portion for down-hole filling. The tailings usually contain a large amount of metal sulfides, oxides, silicates and the like, and harmful elements such as heavy metals in the tailings can migrate to surrounding water and soil under the action of wind power, water power and the like. In order to know the vertical migration rule of heavy metals under rainfall conditions in a tailing pond, the transformation rule of heavy metal forms and the pollution degree of tailings to surrounding soil so as to realize stable control and harmless economic stockpiling of tailings, the indoor simulation of the migration and transformation rule of heavy metals in tailings is particularly important. At present, an indoor leaching column experiment is generally adopted for a migration simulation experiment under rainfall conditions of tailings pollutants, but the existing indoor leaching experiment has certain defects, water cannot be uniformly distributed in the rainfall simulation process, and the tailings have different physicochemical property changes due to different leaching degrees; the leaching columns are designed in an integrated mode mostly, and are inconvenient to detach in a layered mode, so that a sample in the middle layer of the leaching column is difficult to take or the stable state of the sample can be damaged, and the migration and transformation rules of heavy metals in tailings at different vertical heights cannot be researched.

Disclosure of Invention

In view of this, the embodiment of the present invention provides a tailing leaching device that can not only uniformly distribute water, but also collect leaching solution, and can meet the requirement of collecting tailing samples in layers at any time.

A tailing leaching device with uniform leaching and layered sampling comprises a base, wherein a pillar is fixedly connected to the upper surface of the base, a plurality of sliding sleeves are sleeved on the pillar, screw holes are formed in the sliding sleeves, bolts are connected with the screw holes in the sliding sleeves in a threaded manner, the outer side wall of each sliding sleeve is fixedly connected with one end of a connecting rod, a clamp is fixedly connected to the other end of the connecting rod, leaching columns are clamped on the clamp, the number of the leaching columns is at least four, the four leaching columns are identical in structural characteristics and are connected through latex pipes, a horizontal water distributor and a water permeable baffle are fixedly mounted at the top and the bottom of the inner side of each leaching column respectively, a leaching column cover is arranged on each top leaching column and is connected with one end of a water guide pipe, the water guide pipe is connected with a liquid supply bottle through a peristaltic pump, and the bottom end of each bottom leaching column extends into a liquid accumulation bottle, the hydrops bottle is placed on the loading board, the lower surface mounting of loading board has weighing sensor, and weighing sensor is located the inside of base, two fixed plates of fixedly connected with on the base, and equal joint has the sleeve on two fixed plates, the loop bar is established to the sleeve endotheca, the one end fixedly connected with pull ring of loop bar, the other end fixedly connected with clamp splice of loop bar, peristaltic pump and weighing sensor respectively with external power supply electric connection.

Further, be provided with the display screen on the base, and the input of display screen and weighing sensor's output electric connection.

Furthermore, the horizontal water distributor is a circular water distributor, and a plurality of water passing holes which are uniformly distributed are arranged in the middle of the horizontal water distributor.

Furthermore, scales are arranged on the support.

Furthermore, the baffle that permeates water is last evenly to be provided with the hole of permeating water, and permeates water and cover a plurality of layers of gauze on the baffle.

Further, the outer side wall of the sleeve rod is sleeved with a spring.

Furthermore, the peristaltic pump can freely adjust the water inlet speed and the water inlet quantity.

Further, the lateral wall of leaching column bottom is provided with the thief hole, and the interpolation of thief hole has connect the rubber buffer.

Further, the clamping block is crescent in shape.

Furthermore, the caliber of the liquid accumulation bottle is close to the diameter of the latex tube.

The technical scheme provided by the embodiment of the invention has the following beneficial effects:

in the above scheme, utilize the clip to make each leaching post dismantle respectively, simultaneously under the effect of bolt and screw, it makes the sliding sleeve can slide on the stand to roll out the bolt, thereby be convenient for highly adjust wantonly between a plurality of leaching posts, can not co-altitude select the tailings sample, under the effect of clamp splice, can keep the stability of hydrops bottle, avoid the mistake to bump and lead to the hydrops bottle to empty, convenient and fast more when weighing the hydrops bottle simultaneously, excellent in use effect, but set up horizontal water distributor in the leaching post and evenly distribute the water and solve the uneven problem of leaching.

Drawings

FIG. 1 is a schematic diagram of the overall structure of a tailing leaching device which is uniformly leached and can be sampled in a layered manner according to the invention;

FIG. 2 is a schematic view of the structure of the base of FIG. 1 for holding the liquid-containing bottle;

FIG. 3 is a schematic structural view of a section of a connection part of the sliding sleeve and the upright column in FIG. 1;

fig. 4 is a schematic structural view of the single-layer leaching column in fig. 1.

In the figure: 1. a base; 2. a pillar; 3. a sliding sleeve; 4. a screw hole; 5. a bolt; 6. a connecting rod; 7. a clip; 8. a leaching column; 9. a latex tube; 10. a rubber plug; 11. a horizontal water distributor; 12. a water permeable baffle; 13. a leaching column cover; 14. a water conduit; 15. a peristaltic pump; 16. a liquid supply bottle; 17. a liquid accumulation bottle; 18. a carrier plate; 19. a weighing sensor; 20. fixing; 21. a sleeve; 22. a loop bar; 23. a pull ring; 24. a spring; 25. a clamping block; 26. a display screen; 27. and (4) calibration.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be further described with reference to the accompanying drawings.

Referring to fig. 1 to 4, an embodiment of the present invention provides a tailings leaching device for uniform leaching and layered sampling, which includes a base 1, a pillar 2 is fixedly connected to an upper surface of the base 1, a scale 27 is provided on the pillar 2, the height can be more specifically adjusted through the scale 27, a plurality of sliding sleeves 3 are sleeved on the pillar 2, screw holes 4 are provided on the plurality of sliding sleeves 3, and bolts 5 are connected to the screw holes 4 through internal threads, under the action of the bolts 5 and the screw holes 4, the bolts 5 are turned out to enable the sliding sleeves 3 to slide on the pillar, so that the height between the leaching columns 8 can be arbitrarily adjusted.

The outer side wall of the sliding sleeve 3 is fixedly connected with one end of a connecting rod 6, the other end of the connecting rod 6 is fixedly connected with a clamp 7, the clamp 7 is clamped with the leaching columns 8, the number of the leaching columns 8 is at least four, and the four leaching columns 8 have the same structural characteristics, the four leaching columns 8 are connected through latex tubes 9, the top and the bottom of the inner side of each leaching column 8 are respectively and fixedly provided with a horizontal water distributor 11 and a water permeable baffle 12, the horizontal water distributor 11 is a circular water distributor, the middle of the horizontal water distributor 11 is provided with a plurality of water passing holes which are uniformly distributed, the horizontal water distributor 11 can uniformly distribute water to solve the problem of uneven leaching, the water permeable baffle 12 is uniformly provided with water passing holes, and the permeable baffle 12 is covered with a plurality of layers of gauze to prevent the tailing sand from infiltrating downwards, the outer side wall of the bottom of the leaching column 8 is provided with a sampling hole, and the plug-in rubber buffer 10 of sampling hole, can open the tailings sample of gathering and observe different vertical height tailings and change during the sample.

Be provided with on the top leaching column 8 and leach column lid 13, and leaching column lid 13 is connected with the one end of aqueduct 14, and aqueduct 14 passes through peristaltic pump 15 and is connected with liquid supply bottle 16, and peristaltic pump 15 can freely adjust inflow speed and inflow, and bottom leaching column 8's bottom extends to in the hydrops bottle 17, and hydrops bottle 17 bore is close with emulsion tube 9 diameter, reduces the leachate evaporation.

The hydrops bottle 17 is placed on loading board 18, and weighing sensor 19 is installed to the lower surface of loading board 18, and weighing sensor 19 is located the inside of base 1, is provided with display screen 26 on the base 1, and display screen 26's input and weighing sensor 19's output electric connection, utilizes weighing sensor 19 to weigh the operation to the weight of hydrops bottle 17 to data display after will weighing is on display screen 26, the record of being convenient for.

As shown in fig. 2, two fixed plates 20 of fixedly connected with on the base 1, and equal joint has sleeve 21 on two fixed plates 20, sleeve 21 endotheca is equipped with loop bar 22, the one end fixedly connected with pull ring 23 of loop bar 22, the other end fixedly connected with clamp splice 25 of loop bar 22, the lateral wall cover of loop bar 22 is equipped with spring 24, utilize spring 24's elasticity to make clamp splice 25 closely laminate with hydrops bottle 17, the centre gripping is effectual, the shape of clamp splice 25 is crescent, the centre gripping is effectual, peristaltic pump 15 and weighing sensor 19 respectively with external power supply electric connection.

The simulation experiment process of the device for indoor tailing leaching comprises the following steps:

1. installing the whole device, respectively placing a plurality of layers of gauze on the water-permeable baffle plates 12 of the leaching columns 8, respectively selecting a proper amount of tailings according to experimental needs to be respectively installed in the leaching columns 8, placing the leaching columns 8 on the clamps 7, determining the horizontal and vertical heights through the scales 27, and fixing the height by using bolts 5;

2. the peristaltic pump 15 is started, the required flow rate or flow is adjusted, the leaching solution is poured into the solution supply bottle 16, then is extracted, and is supplied to the leaching column 8 through the water guide pipe 14;

3. taking a tailing sample in the experiment process, determining the time for taking the tailing sample according to the experiment requirement, closing the peristaltic pump 15, suspending leaching, opening the rubber plug 10 of each layer of leaching column 8 if a small amount of tailing is taken, scooping out the required amount of tailing by using a small spoon, plugging the rubber plug 10, opening the peristaltic pump 15 for continuous leaching, detaching the leaching columns 8 in layers if the amount of tailing is taken to be larger, opening the leaching column cover 13, taking out the required amount of tailing from the upper part by using a spoon, installing the leaching columns 8, and opening the peristaltic pump 15 for continuous leaching;

4. leaching liquid samples are taken in the experiment process, in the leaching process, the time for taking leaching liquid is determined according to experiment requirements, the pull ring 23 is pulled to enable the clamping block 25 not to clamp the liquid accumulation bottle 17 any more, at the moment, the weight of the liquid accumulation bottle 17 is displayed on the display screen 26 through the weighing sensor 19, and the weighing work is completed.

5. And (5) after the experiment is finished, closing the peristaltic pump 15, disassembling the leaching column 8 and cleaning.

In this document, the upper and lower terms are defined as the positions of the components in the drawings and the positions of the components relative to each other, and are used for clarity and convenience of the technical solution, and it should be understood that the terms should not be used for limiting the scope of the claims.

The features of the embodiments and embodiments described herein above may be combined with each other without conflict.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent replacements, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an even drip washing and tailings leaching device of stratified sampling, includes base (1), its characterized in that: the upper surface of the base (1) is fixedly connected with a supporting column (2), the supporting column (2) is sleeved with a plurality of sliding sleeves (3), the plurality of sliding sleeves (3) are provided with screw holes (4), the screw holes (4) are connected with bolts (5) in an internal thread manner, the outer side wall of each sliding sleeve (3) is fixedly connected with one end of a connecting rod (6), the other end of each connecting rod (6) is fixedly connected with a clamp (7), and a leaching column (8) is clamped on each clamp (7);

the number of the leaching columns (8) is at least four, the four leaching columns (8) have the same structural characteristics, the four leaching columns (8) are connected through latex tubes (9), and the top and the bottom of the inner side of each leaching column (8) are respectively and fixedly provided with a horizontal water distributor (11) and a water permeable baffle (12);

the top leaching column (8) is provided with a leaching column cover (13), the leaching column cover (13) is connected with one end of a water guide pipe (14), the water guide pipe (14) is connected with a liquid supply bottle (16) through a peristaltic pump (15), the bottom end of the bottom leaching column (8) extends into a liquid accumulation bottle (17), the liquid accumulation bottle (17) is placed on a bearing plate (18), a weighing sensor (19) is installed on the lower surface of the bearing plate (18), the weighing sensor (19) is positioned inside a base (1), the base (1) is fixedly connected with two fixing plates (20), the two fixing plates (20) are respectively connected with a sleeve (21), a sleeve rod (22) is sleeved in the sleeve (21), one end of the sleeve rod (22) is fixedly connected with a pull ring (23), the other end of the sleeve rod (22) is fixedly connected with a clamp block (25), the peristaltic pump (15) and the weighing sensor (19) are respectively electrically connected with an external power supply.

2. The evenly washed and stratified sampling tailings leaching apparatus of claim 1, wherein: the base (1) is provided with a display screen (26), and the input end of the display screen (26) is electrically connected with the output end of the weighing sensor (19).

3. The evenly washed and stratified sampling tailings leaching apparatus of claim 1, wherein: the horizontal water distributor (11) is a circular water distributor, and a plurality of water passing holes which are uniformly distributed are arranged in the middle.

4. The evenly washed and stratified sampling tailings leaching apparatus of claim 1, wherein: the support column (2) is provided with scales (27).

5. The evenly washed and stratified sampling tailings leaching apparatus of claim 1, wherein: the water permeable baffle (12) is uniformly provided with water permeable holes, and the water permeable baffle (12) is covered with a plurality of layers of gauze.

6. The evenly washed and stratified sampling tailings leaching apparatus of claim 1, wherein: the outer side wall of the loop bar (22) is sleeved with a spring (24).

7. The evenly washed and stratified sampling tailings leaching apparatus of claim 1, wherein: the peristaltic pump (15) can freely adjust the water inlet speed and the water inlet quantity.

8. The evenly washed and stratified sampling tailings leaching apparatus of claim 1, wherein: the lateral wall of trickling filter post (8) bottom is provided with the thief hole, and has pegged graft rubber buffer (10) in the thief hole.

9. The evenly washed and stratified sampling tailings leaching apparatus of claim 1, wherein: the clamping block (25) is crescent.

10. The evenly washed and stratified sampling tailings leaching apparatus of claim 1, wherein: the caliber of the liquid accumulation bottle (17) is close to the diameter of the latex tube (9).