The utility model provides an automatic
solid fuel crushing feeder, which belongs to the technical field of feeders and comprises a feeder body, the top of the feeder body is communicated with a feed hopper, a crushing roller is rotatably connected in the feeder body, a
sieve plate is slidably arranged in the feeder body between the crushing roller and the feed hopper, and first sliders are oppositely arranged on two sides of the
sieve plate. A sliding groove allowing the first sliding block to slide is formed in the feeding
machine body in a penetrating mode, a vibration
assembly driving the first sliding block to vibrate is arranged outside the feeding
machine body and comprises a supporting block which is fixed to the feeding
machine body, the supporting block is rotationally connected with a rotating shaft, the rotating shaft is sleeved with a
cam abutting against the first sliding block, and the rotating shaft is sleeved with a belt
pulley. The rotating shafts are driven by a second motor, and adjacent belt wheels are connected through a conveying belt. By arranging the vibration
assembly, the screen plate and the first sliding block, the vibration
assembly drives the first sliding block to move up and down to achieve vibration of the screen plate, impurities of the
solid fuel can be conveniently screened through the screen plate, and later
combustion use of the
solid fuel is improved.