Concealed pipe salt and alkali removal device

Abstract

The invention belongs to the related technical field of high-saline-alkali soil and ash modification, and discloses a concealed pipe salt and alkali removal device which comprises a plurality of concealed pipes, outlets of the concealed pipes are connected with a water collecting device, each concealed pipe comprises a water conveying pipe and an exhaust pipe arranged in the water conveying pipe, a plurality of first small holes are formed in the surface of each exhaust pipe, and outlets of the exhaust pipes are connected with exhaust pumps; and a plurality of second small holes are formed in the surface of each water conveying pipe, and first permeable geotextile is arranged on the outer surface of each water conveying pipe. Evaporation is increased by accelerating flowing in the concealed pipes, so that water is timely discharged from the concealed pipes, flowing of the water to underground water is effectively reduced, enrichment of salt and alkali substances is reduced, and simplicity and high efficiency are achieved.

Description

technical field [0001] The invention belongs to the related technical field of highly saline-alkali soil and ash modification, and more specifically relates to a dark tube desalination device. Background technique [0002] The characteristics of high salinity and alkalinity in soil and solid waste incineration ash directly affect its utilization value or disposal. Therefore, efficient desalination and dealkaliization are of great significance for the treatment and utilization of high-saline soil and ash. Whether it is agricultural soil, organic solid waste deposits or incineration ash deposits, the drainage directly affects their salinity. The essential reason for the formation of various saline-alkali soils is mainly the redistribution of various soluble salts in the horizontal and vertical directions on the ground. Capillary operation, accompanied by water evaporation and other reasons, gradually accumulates on the surface of sand and dust. The traditional drainage method...

AI Technical Summary

Problems solved by technology

However, the traditional underground pipe drainage has the problem of insufficient natural infiltration water for collecting sand and dust in a single underground pipe. In order to increase the infiltration, a large number of underground pipes need to be arranged, which in turn requires a large amount of investment. In industrial applications, due to economic considerations, often arranged Insufficient number of underground pipes makes the natural infiltration water of the soil lose into the groundwater, which affects the salinity of the soil

There is also a technology that combines the hidden pipe with the open ditch, but the principle of water absorption of the hidden pipe has not been improved, and the construction requirements of the hidden pipe are relatively high, so it can only be infiltrated passively, and the natural infiltration capacity of the permeable water between each hidden pipe is limited; The bottom of the pipe salt drainage system is set in an inverted trapezoidal area, and the hidden pipe is arranged in the inverted trapezoidal area. In theory, it can well reduce the natural infiltration of water into the groundwater, but in practice it will be greatly increased. The construction is difficult, and the actual construction is difficult to realize; while other methods of improving the hidden pipe are often to improve the water absorption area of ​​the dark pipe, etc., mainly focusing on the change of the shape of the dark pipe, which does not improve the water absorption principle of the dark pipe, and cannot effectively reduce irrigation when applied in practice. Problems with natural infiltration of water into groundwater

Images