Tailing filter material, preparation method and application thereof, filter material seepage drainage structure and application thereof
An anti-filter material and tailings technology, applied in the field of tailings treatment, can solve the problems of high infiltration line of tailings dam and difficult drainage, and achieve the effects of being conducive to safety and stability, preventing clogging and accelerating discharge.
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Embodiment 1
[0039] The present embodiment provides a tailings reverse filter material 1, such as figure 1 As shown, it includes a gravel layer 13, a combined transition layer 12 of gravel tailings and tailings layer 11 arranged by stacking;
[0040] Wherein, the combined transition layer 12 of crushed stones and tailings includes crushed stones and tailings, and the tailings fills the gaps between adjacent crushed stones.
[0041] The preparation method of described tailings reverse filter material 1 is as follows:
[0042] Step a: Statistical tailings particle distribution curve, determine tailings particle representative particle size d30, d60, d100, where d30, d60, d100 are the particles corresponding to 30%, 60%, and 100% of mass in particle size distribution respectively diameter, and calculate the tailings gradation curve. According to the tailings grading curve, calculate the minimum particle size df of gravel and configure the gravel grading curve so that the gravel grading curv...
Embodiment 2
[0050] This embodiment provides a reverse filter material drainage structure, such as image 3 As shown, the drainage pipe 3 is included, and the pipe wall of the drainage pipe 3 is successively provided with a gravel layer 13, a combined transition layer 12 of gravel tailings and a tailings layer 11; it also includes a filter screen 2, and the filter screen 2 is set It is outside the drainage pipe 3 and is arranged between the combined transition layer 12 of gravel and tailings and the tailings layer 11 .
[0051] In a typical but non-limiting embodiment of the present invention, the gravel tailings joint transition layer 12 is formed by the tailings migrating into the pores of the gravel under the action of osmotic force.
[0052] The newly piled tailings are in a fluid state, and with the discharge of seepage, the fine particles in the tailings migrate to the gravel layer, forming a combined transition layer 12 of gravel and tailings. Under the action of seepage pressure, th...
Embodiment 3
[0062] This embodiment provides an application of a tailings reverse filter material and a seepage drainage structure of the reverse filter material in a tailings dam.
[0063] The typical but non-limiting application of tailings filter media is to lay them directly at the bottom of the tailings dam, or lay them in layers in the tailings dam to achieve the purpose of seepage drainage and anti-silting.
[0064] A typical but non-limiting application of the reverse filter material seepage structure is: laying the reverse filter material seepage structure at the bottom of the tailings dam, and then discharging the tailings into the tailings dam. Or insert a reverse filter material drainage structure in the tailings dam with accumulated tailings to achieve the purpose of drainage.
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