Chemical siltation resisting drainage device for tailing dam

Abstract

The invention discloses a chemical siltation resisting drainage device for a tailing dam, comprising a drainage pipe, a siltation resisting trough, water seepage holes, water seepage troughs and geotextiles. The invention is characterized in that the drainage pipe is a circular pipe, and the end part of the pipe is provided with the water seepage troughs and the water seepage holes, and the water seepage troughs are tightly wrapped by the geotextiles; the siltation resisting trough is a rectangular box body having no cover, and the front end of the box body is provided with a circular hole having the same pipe diameter as the drainage pipe; the drainage pipe is obliquely arranged in the siltation resisting trough of the box body at an inclination angle so as to prevent the geotextiles from generating chemical siltation and ensure that the dam body can drain normally. The chemical siltation resisting drainage device has the advantages of simple structure, high effectiveness, low cost and convenient use, and ensures that the geotextiles do not alternate between saturation and nonsaturation, thus preventing the geotextiles from generating chemical siltation. By using the chemical siltation resisting drainage device, the drainage capability of the dam is reinforced, thus ensuring smooth drainage, reducing the seepage line of the dam effectively and accordingly lowering the operation risk of the tailing dam.

Description

technical field [0001] The invention relates to the technical field of seepage drainage of tailings dams formed by abandoned tailings in industrial mineral processing plants or accumulated residues in thermal power generation industries, and more specifically relates to a seepage drainage device for preventing chemical clogging during the drainage of tailings dams . By setting the anti-silt tank in the drainage system to ensure that the geotextile is always submerged below the water level of the anti-silt tank, thereby effectively preventing the chemical blockage of the seepage pipe. Background technique [0002] Tailings dam is an important facility for the infrastructure of various mineral processing plants and thermal power plants in the metallurgical industry, and an important link to ensure the normal production of various mineral processing plants and thermal power plants. Because there is a large amount of tailings sand and water in the dam, once the dam body breaks,...

AI Technical Summary

Problems solved by technology

The disadvantage of this method is that the non-woven geotextile appears chemical clogging under the condition of alternating saturation and unsaturation.

This will lead to poor seepage drainage effect of the tailings dam, the dam body seepage line rises, water seeps from the dam slope, and some also produce concentrated seepage and piping damage, seriously affecting the safety of the dam body

Images