Stereo totally-closed greening vacuum alkali removing device and application method thereof

Abstract

The invention provides a stereo totally-closed greening vacuum alkali removing device and an application method thereof. The device is mainly formed by a feedwater control valve (1), an upper layer alkali removing pipe (2), an upper layer alkali removing pipe feedwater control valve (3), a lower layer alkali removing pipe (4), a lower layer alkali removing pipe feedwater control valve (5), a ponding discharge valve (6), an upper layer alkali removing pipe connecting pipe (7), an upper layer and lower layer alkali removing pipe connecting pipe (8), an upper layer and lower layer alkali removing pipe control valve (9), a lower layer alkali removing pipe connecting pipe (10), a vacuum pump (11), a single pump control valve (12), a self-drainage control valve (13), a self-flowing port (14), a forced drainage overflow port (15), an external soaking prevention film (16), and fresh water (17). Beneficial effects of the device are that the structural design is rational and practical, complicated procedures are reduced, and alkali removing is clean and thorough, and wind energy and solar energy are directly used as power to reduce operational cost, so as to achieve effect of green power alkali removing.

Description

technical field [0001] The invention relates to the technical field of saline-alkali land improvement devices, in particular to a three-dimensional fully enclosed greening vacuum alkali removal device and a method for using the same. Background technique [0002] At present, there are mainly the following methods for improving saline-alkali land: 1. Alkali washing method, using fresh water to repeatedly pressure irrigation and drainage of alkali; 2. Dark pipe alkali drainage method; Improved law. However, the implementation of the above methods cannot completely solve the problem of alkali return, especially in areas with high groundwater levels and high salinity, once there is a lack of fresh water, the ground saline-alkali water level will rise, and the land will be re-salinized and the improvement effect will be poor. Contents of the invention [0003] The purpose of the present invention is to provide a three-dimensional fully enclosed greening vacuum alkali removal d...

AI Technical Summary

Problems solved by technology

However, the implementation of the above methods cannot completely solve the problem of alkali return, especially in areas with high groundwater levels and high salinity, once there is a lack of fresh water, the ground saline-alkali water level will rise, and the land will be re-salinized and the improvement effect will be poor.

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