The utility model discloses a
straw screening device which comprises an installation frame, a feeding port is formed in one side of the installation frame, a feeding roller is installed in the feeding port, a broken
yeast separating screen is installed on the portion, on the lower side of the feeding roller, of the installation frame, a conveying channel is installed on the installation frame, and a
straw screening mechanism is installed at the input end of the conveying channel. A
straw screening roller is installed on the transition section of the conveying channel, a straw conveying roller is installed on the upper side of the conveying channel, an available straw outlet is further formed in the output end of the conveying channel, a waste outlet is formed in the position, at the bottom of the output end of the broken koji separating screen, of the mounting frame, and a
power output mechanism is further installed on one side of the bottom of the mounting frame. And the
power output mechanism is connected with the feeding roller, the broken
yeast separating
sieve, the straw screening mechanism, the straw screening roller and the straw conveying roller. According to the utility model, a mixture of broken
yeast blocks and straw is mechanically screened, so that the effects of saving labor, improving the
recovery rate of the yeast blocks and avoiding waste of raw materials are achieved, and the existing
processing requirements are met.