Brine ditches and their systems and methods of excavation

Abstract

The invention discloses a brine channel. The brine channel is positioned in a mineral layer under a salt lake earth surface, and comprises a covered brine extracting channel and a plurality of brine extracting wells, wherein the covered brine extracting channel is communicated with the multiple brine extracting wells. The invention also provides a brine channel system, which comprises the multiple brine channels, wherein the brine channels are arranged in parallel and are communicated with one another. The invention also provides an excavating method for the brine channel. The excavating method comprises the following steps: S101, excavating of the multiple brine extracting wells which are separated from one another in a first area with a first length in a salt lake; S102, excavating the covered brine extracting channel which is communicated with the multiple brine extracting wells under the salt lake earth surface by adopting horizontal directional drilling to obtain the brine channel. The provided brine channel is positioned under the salt lake earth surface and is of a closed structure; the covered brine extracting channel and the brine extracting wells are unlikely to cause salt deposition, namely the brine channel is not easy to block, so that the maintenance and repair cost of the brine channel is greatly reduced.

Description

technical field [0001] The invention relates to a ditch for taking brine from a salt lake, its system and a corresponding excavation method. Background technique [0002] Potassium is an important element for plant growth. It is mainly stored in the stems of plants. Due to reasons such as harvesting crops and soil erosion, it is often necessary to add potassium fertilizer to the soil to supplement the loss of potassium in the soil. Potassium chloride is the most widely used potassium fertilizer at present, and potassium sulfate or potassium carbonate is also used. Potassium chloride is usually extracted from white potassium halite or carnallite, and seawater and salt lake brine are also important resources for extracting potassium chloride. my country's Xinjiang, Gansu, Qinghai, Inner Mongolia and other provinces and autonomous regions have abundant salt lake resources. Extracting potassium chloride from salt lake brine is of great significance for the development of salt l...

AI Technical Summary

Problems solved by technology

[0004] The traditional open brine mining canal is directly excavated from the surface, which seriously damages the terrain and landform, and cannot restore the original appearance; It affects the brine collection capacity, and the follow-up cleaning costs are high; and the open brine collection channel is excavated by blasting, and various types of large-scale mechanical equipment are used for cross-operation during the excavation process, which poses safety hazards and prolongs the construction period

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