The
straw carbonization,
granulation and
fertilizer preparation integrated equipment comprises a
carbonization machine body and a smashing cylinder, the smashing cylinder is arranged above the
carbonization machine body, the top of the smashing cylinder is communicated with a
drying box, a feeding port is formed in the top end of the
drying box, two heating rollers are rotationally connected into the
drying box, and the two heating rollers are arranged in the drying box. Two hollow rotating cylinders are rotationally connected into the drying box, air outlet holes are formed in the peripheries of the hollow rotating cylinders, the two ends of each hollow rotating cylinder penetrate through and extend out of the crushing cylinder, one end of each hollow rotating cylinder is connected with a rotating connector, a fixed supporting plate is installed on one side of the drying box, and an
air heater is installed on the fixed supporting plate; the air outlet end of the
air heater is communicated with a [-shaped air conveying
pipe, the two ends of the [-shaped air conveying
pipe are communicated with air supply pipes, and one end of each air supply
pipe is connected with a rotary connector. The
straw drying device has the beneficial effects that the descending speed of
straw is low, the straw can be fully heated and dried, the straw drying effect is improved, the carbonization effect is improved, and the
fertilizer making effect is improved.