EXPERIMENTAL INVESTIGATION OF A MACHINE FOR LOCAL STRIP APPLICATION (MLSA) OF SAPROPEL-BASED ORGANIC FERTILIZER MIXTURES
ЕКСПЕРИМЕНТАЛЬНІ ДОСЛІДЖЕННЯ МАШИНИ ДЛЯ ЛОКАЛЬНОГО СМУГОВОГО ВНЕСЕННЯ (МЛСВ) ОРГАНІЧНИХ ДОБРИВ НА ОСНОВІ САПРОПЕЛЮ
DOI : https://doi.org/10.35633/inmateh-79-23
Authors
Abstract
An alternative approach to the utilization of lake sapropel is its mixing with available organic sorbents, such as chopped cereal straw. The application of such mixtures in strips into the soil ensures the formation of a moisture-holding nutrient layer during crop cultivation. To form these strips, an experimental prototype of a single-row machine was developed. Under laboratory conditions, the torque required to drive the machine and the mixture mass flow rate were investigated. The variable parameters included the rotational speed of the metering beater shaft , the blade inclination angle , the width of the hopper outlet opening , and the opening position of the metering beater housing gate . To obtain mathematical models of the machine drive torque and the mixture mass flow rate in the form of regression equations, a statistical design of experiments method for a four-factor experiment based on the Box–Behnken design was applied. Analysis of the obtained regression equations showed that, in order to reduce the energy consumption of the machine drive, it is advisable to maintain the beater rotational speed within the range of 550–600 rpm, the blade inclination angle at , and the maximum opening of the metering beater housing gate m. A nomogram was developed for regulating the mixture feeding rate of the machine by changing the width of the hopper gate opening .
Abstract in Ukrainian



