Buoyancy type constant pressure fertilizer applicator and its application method

Abstract

The buoyancy constant pressure fertilizer and its application method belong to the technical field of pesticides, liquid fertilizers and water plant dosing equipment. The fertilizer applicator is composed of a sealed tank, a floating plate and a fertilizer bag; the top plate of the closed tank is provided with an inlet and an exhaust valve; the bottom plate of the closed tank is provided with a water inlet pipe, a fertilizer outlet pipe and a drain pipe. There are several semicircular guide rods arranged symmetrically on the inner wall of the tank body. The floating plate can slide up and down in the airtight tank through the guide rods, and cannot rotate. Between the plate and the top plate of the closed tank, the upper end of the fertilizer bag is connected and fixed with the feed port through the sealing flange, and the lower end of the fertilizer bag is connected and fixed with the through hole on the floating plate through the threaded sealing cover. The invention has a novel structure and a clear working principle. Since the buoyancy is constant and the fertilizer solution flows continuously, the fertilization is uniform, zero energy consumption, and will not cause loss of water head in the pipeline. It is especially suitable for low-pressure drip irrigation fertilization systems, and has great practicality and socioeconomic benefits.

Description

technical field [0001] The invention belongs to the technical field of pesticides, liquid fertilizers and waterworks pipeline dosing equipment, and relates to a fertilization (dosing) device and an application method thereof, in particular to a buoyancy constant irrigation system for agricultural liquid fertilizer spray and drip irrigation systems. Pressure fertilizer applicator and method of application thereof. Background technique [0002] With the country's increasing emphasis on agriculture, agricultural facilities have been effectively promoted, the area of ​​farmland irrigated is increasing day by day, and the consumption of fertilizers and pesticides has become more and more considerable. The fertilization device is an indispensable and basic part of the water-saving irrigation system, and its performance directly affects the quality of irrigation and fertilization and crop yield. [0003] There are two traditional liquid fertilizer dosing methods, one is to use ele...

AI Technical Summary

Problems solved by technology

The vacuum suction method uses the vacuum generated by the increase of the flow rate in the throat to uniformly suck the fertilizer liquid into the irrigation pipe and mix it with water. The existing problems are high operating pressure requirements, large water head loss, serious back suction phenomenon, and limited suction range.

The main disadvantage of the differential pressure fertilization tank is that the concentration of the fertilizer decays with time, and it is difficult to control the dosing time

Images