ТЕОРЕТИЧЕСКИЕ ИССЛЕДОВАНИЯ ДЛИНЫ ПЕРЕМЕЩЕНИЯ СТРУИ ЖИДКОГО НАВОЗА ПРИ ЕГО ПЕРЕМЕШИВАНИИ В НАВОЗОХРАНИЛИЩЕ

Abstract

There on large livestock farms a nonbedding method of animals’ keeping is common. At such animals’ keeping, liquid and semiliquid manure is obtained. Such manure during storage into three fractions - upper, liquid and lower is stratified. The upper fraction surface contacts with the environment and therefore dries out and forms a crust. This manure heavier part, under the influence of gravity, settles to the manure storage’s bottom, forming a dense layer during prolonged storage. Thus, there in storage manure mass three fractions of different physical-and-mechanical properties are formed, for each of them extraction the different methods are used, by the corresponding machines implementing. As a result, the metal and energy consumption at manure extracting process by the manure storage is increased, and consequently, so as the agricultural products’ cost. The stored manure technological operation’s extracting can be reduced to an energy minimum by a homogeneous mass forming. This can be solved by the farm manure coming into the manure storage facility mixing. This operation can be implemented by the layers’ active movement by hydraulic or mechanical methods organizing. The hydraulic method only if liquid fractions without mechanical impurities presence at the pump entering by the impeller as working organ for they disable it at acting The most widespread mechanical method of manure fractions movement by a propeller agitator, forming a directional flow during rotation is carried out. These theoretical studies results concerning the liquid manure jet movement formed as a result the mixer agitator action in the medium of manure mass stored in a manure storage facility are presented. The relationship between the length of movement of the liquid manure jet, the angle of elevation of the blade’s helical line, this mixer diameter, its angular velocity and the mixer’s inclination in the relative to the horizontal plane has been established.