Sieve tube process brine extraction device

Abstract

The invention relates to the technical field of mining and discloses a sieve tube process brine extraction device which comprises an inclined shaft (1), an inclined shaft casing pipe (2) and a centralpipe (3), wherein the tail end of the central pipe (3) is sealed; the inclined shaft casing pipe (2) is positioned in the vertical section of the inclined shaft (1); the central pipe (3) is positioned in the inclined shaft casing pipe (2); a preset distance H1 is formed between the inner wall of the inclined shaft casing pipe (2) and the outer wall of the central pipe (3); the lower part of the central pipe (3) extends to be overlapped with the horizontal section of the inclined shaft (1); and a plurality of water orifices (4) are formed in the side wall of the section, overlapped with the horizontal section of the inclined shaft (1), of the central pipe (3) in the length direction of the central pipe (3). Compared with the prior art, through adding the simple central pipe, the sieve tubeprocess brine extraction device can greatly increase the mining coefficient, is simple in structure, convenient to implement and saves energy and reduces emission.

Description

technical field [0001] The invention relates to the technical field of mining, in particular to a brine extraction device by screen tube method. Background technique [0002] At present, in the process of collecting Glauber’s salt ore, it is necessary to use vertical shafts and inclined shafts adjacent to each other. The two are connected at the location of Glauber’s salt mines about 2,000 meters underground, or there is a distance that can be dissolved after water injection. To collect the thenardite ore between the two, pump low-concentration water from the vertical shaft (or inclined well) into the ground through the water injection pump, dissolve the underground thenardite ore, and dissolve the high-concentration water mixed with thenardite ore Under the action of water pressure, it is ejected from the inclined shaft (or vertical shaft) to complete the collection of thenardite ore. [0003] The design of the above-mentioned vertical shafts and inclined shafts has the fo...

AI Technical Summary

Problems solved by technology

[0003] The design of the above-mentioned vertical shafts and inclined shafts has the following defects, because the low-concentration water injected into the ground from the vertical shafts or inclined shafts can only come out of the bottom outlet of the vertical shafts and inclined shafts and then contact and dissolve the surrounding Glauber’s salt ore , so it is easy to have a large cavity around the bottom outlet of the vertical shaft or inclined shaft, and thenardite ore within the range of the cavity (about 80 meters in diameter) will be mined by dissolution, but the distance between the vertical shaft and the inclined shaft is generally set At about 360 meters, this will lead to a certain distance between the vertical shaft and the inclined shaft outside the range of the above-mentioned cavity, which will not be mined, resulting in a relatively low recovery rate after consuming a lot of financial and material resources, which is not conducive to energy saving. emission reduction

Images