The invention relates to equipment capable of spraying
biogas slurry and turning over and burying straws and a stratified
straw returning method. The equipment capable of spraying
biogas slurry and turning over and burying straws includes a rack, a pushing plow, a ditching plow, a ground wheel component, a
hydraulic cylinder, a hanger, a connecting shaft, a
biogas slurry spraying
system and a power
system. The hanger is connected with the front end of the rack in the advancing direction through the connecting shaft, and the rack can rotate around the connecting shaft.
Biogas slurry spraying components are arranged at the upper portion of the hanger. The
hydraulic cylinder is obliquely arranged on one side of the connecting shaft. One end of the
hydraulic cylinder is connected with the hanger, while the other end is connected with the rack. The power
system is connected with the hydraulic cylinder to transmit power and drive the hydraulic cylinder to stretch out and draw back and drive the rack to turn over 180 degrees around the connecting shaft. The ground wheel component is arranged at the left side of the rack in the advancing direction, the pushing plow and the ground wheel component are arranged at the same side of the rack, and the ditching plow is arranged at the right side of the rack in the advancing direction. The equipment achieves a turn-over function of operating plows as an upper
plough share and a lower
plough share work alternately. Therefore, the work efficiency is improved, the labor intensity is reduced, and the stratified
straw returning purpose is achieved.