Researches Regarding the Spraying Uniformity of the TARAL 200 PITON TURBO Machine
Abstract
Pest and disease control is an import technological link in order to maintain the health of the plantations and to obtain large amounts of high quality productions. Chemical control is the main method used in plant protection. Pesticides are applied on vegetation using sprayers specially designed for this purpose. Wear of the spray nozzle orifices, due to the hydroabrasion corrosion, leads to an uneven covering of the vegetation mass, with either untreated areas or overtreated ones. Before the start of each pest and disease control campaign, the nozzles should be tested in order to evaluate the uniformity of the liquid dispersion. In order to evaluate the dispersion uniformity for the TARAL 200 PITON TURBO spraying machine, a vertical stand was designed, fitted with 11 inclined troughs, each ending with a container for collecting the liquid. The tests were performed at different operating pressures, distances from the axis of the spraying machine, heights above the ground and fan speeds. The most uniform spray distribution was achieved for a height of 500 mm, for fan speeds of 800 and 1400 rev/min and for all the operating pressures and distances. For the height of 700 mm, uniformity was achieved for a speed of 1400 rev/min, for all operating pressures and for the distances of 1700, 1900 and 2100 mm.
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