MACHINE FOR DIFFERENTIATED APPLICATION OF LIQUID MINERAL FERTILISERS Russian patent published in 2012 - IPC A01C23/04 

FIELD: agriculture.

SUBSTANCE: invention relates to the agricultural machinery, in particular to machines for differentiated application in the system of coordinate agriculture of nitrogen, phosphorus and potassium solutions and suspensions of mineral fertilisers. The machine comprises a self-propelled power tool 1, a hydraulic tank installed on it 5 with compartments 8, 9, 10 for components of mineral fertiliser, and a bar 19 with the working bodies 20 fixed on it with receiving chambers and deflecting surfaces, technological systems of supply of liquid components and compressed air, metering and regulation, distribution and introduction of multi-component mixtures of liquid mineral fertiliser and an on-board computer. The receiving chambers are equipped with at least three mounted symmetrically around the circumference of slotted nozzles which axes of outlets are shifted from the normal to the axis of symmetry of the working body 20 housing toward the supply of compressed air flow, crossing the axis at the point of exit of the compressed air from the nozzle, and on the deflecting surfaces between the planes of the outlet and the descent the turbulators are made in the form of longitudinal-transverse grooves, with decreasing of the depth and length in proportion to their increasing width, and the width of each subsequent turbulator is greater than the previous.

EFFECT: machine provides a differentiated application of components of a mixture of liquid mineral fertilisers to ensure the standard quality of their distribution at each elementary site and at the entire area of the treated field.

5 dwg