Экологический метод уплотнения силоса

Abstract

packing (2x200 kg) the density of 510 kg/m was achieved and while packing the first mix of 200 kg layer after 10 min 571 kgm" density was achieved. The density values of the dry matter were 143 kg/m"3 and 161 kg/m"3, respectively. Forage quality research showed that it met the requirements of the top grade silage. Surface unbalanced-throw vibrators, in which the exciting force is generated by turning the unbalanced mass, were studied and evaluated. Directional and non-directional vibrators were manufactured and tested. Using a directional grass mass pressing vibrator, the amplitude frequency characteristics of pressed grass mass were determined. Resonant frequency was found to depend essentially only on mass elastic properties; it varied from 7.0 Hz for goat'srue (Galega orientalis Lam) mass of greater elasticity up to 15 Hz for less elastic chopped maize mass. The amplitude of grass mass pressure during the resonance depends only on mechanical resistance of the pressed mass. The excitation power amplitude of goat's rue and its mixes during the resonance increased by 2.5 to 3 times but the efficiency of mass pressure dropped. The calculated coefficients of pressure enhancement were 5.5 to 5.8, when vibratory packers were used for grass mass pressing. The established pressure increase rate on the plant mass layer, when pressing it on the surface and from the container bottom, was from 3.0 to 7.5 when using directional vibrator, and 4.8 when using non-directional vibrator. After estimating the application of various tractors and vibratory grass mass packers for grass mass compaction it was found that in both cases the received efficiency rates of grass mass layer were similar. However, while using vibratory grass mass packers, these rates were even higher than using a wheeled tractor T-25A. The efficiency of mass compaction by a centrifugal directional vibrator was estimated in an experimental trial. The results indicated that during the vibratory packing the grass layer was compacted intensely for 5 to 10 min. Therefore, it is advisable to use the vibrators of this type to compact the 0.4 to 0.6 m thick grass layers. Operation of such a vibrator resulted in good density of chopped maize - after 20 min