A pipeline that can be pre-buried in a rare earth heap leaching field

Abstract

The invention discloses a pipeline that can be pre-buried in a rare earth heap leaching field, which is characterized in that it comprises a pipeline, and a three-dimensional hole network is arranged in the pipe wall of the pipeline, and the three-dimensional hole network includes several layers spaced along the axial direction of the pipeline Arranged transverse pore network, the transverse pore network includes the inner seepage pore network, the middle pore network and the outer seepage pore network distributed sequentially from the inside to the outside. The inner seepage holes connected by the channel network, the other end of the inner seepage hole is arranged on the inner wall of the pipeline, and the outer seepage water channel network includes a plurality of outer seepage water holes uniformly distributed along the circumference of the pipeline, one end of which is connected to the middle channel network, and the outer seepage water hole The other end of the hole is arranged on the outer wall of the pipeline; the apertures of the inner seepage holes, the apertures of the middle channel network and the outer seepage holes all gradually increase from the outer wall of the pipeline to the inner wall of the pipeline. The invention has the functions of reverse filtration, drip seepage and not easy to block.

Description

technical field [0001] The invention relates to the technical field of drip leaching pipelines, in particular to a pipeline that can be pre-buried in a rare earth heap leaching field. Background technique [0002] Weathered crust leaching type rare earth ore is a unique and precious resource in my country. The ore is mainly distributed in seven provinces of Jiangxi, Guangdong, Fujian, Hunan, Yunnan, Guangxi and Zhejiang. This type of rare earth ore has a wide distribution area, many types and rich reserves. , easy to extract, low cost and so on. In addition, the medium and heavy rare earth elements that are closely related to the high-tech and composite material industries in the weathered crust leaching rare earth distribution account for more than 80% of the world's medium and heavy rare earth elements reserves, effectively solving the world's shortage of heavy rare earths. Therefore, its development and utilization have a pivotal impact on the world. [0003] The rare ea...

AI Technical Summary

Problems solved by technology

However, the current dripping equipment is easily blocked by the soil, and because both spraying and dripping methods need to be installed on the surface of the soil

[0005] The liquid distribution on the soil surface has the following disadvantages: (1) the liquid distribution on the top of the heap is easy to form a dense layer on the surface of the ore heap, making it difficult for the solution to penetrate into the ore heap and reduce the leaching rate; (2) the injection pressure will cause a large impact on the ore heap. Impact; (3) The liquid distribution aperture is large and easily blocked by soil

Therefore, it cannot effectively solve the problems of long leaching time and blind spots in the heap leaching field of rare earth

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