RESEARCH ON THE SPRAY CYLINDER INTERNAL FLOW FIELD AND ITS INFLUENCE ON SPRAYING QUALITY OF FORAGE SEED SPRAY SEEDING MACHINE

The objective of ecological restoration and rehabilitation grasslands is to recreate the original appearance damaged or degraded vegetation. From previous research, pneumatic spraying technology now more commonly used in world for vegetation restoration. Pneumatic relatively inexpensive causes little damage vegetation, making it one most effective techniques restoring natural grassland under climatic conditions. In this paper, effect machine pipe working airflow on quality was studied through simulation analysis experimental tests. seeding area corresponding different values inlet speed determined. conclusions show that: 1) spray velocity has a great influence uniformity spraying. When higher than 55 m/s, not uniform, while lower 45 amplitude smaller, operational efficiency low, which conducive grasslands; 2) considering efficiency, at should be between m/s when operation. seed drop changed, by adjusting inlet, reseeding leakage reduced, so that performance optimized.