ROLLER MILL, SUCTION UNIT AND METHOD FOR REEQUIPMENT THEREOF Russian patent published in 2018 - IPC B02C4/06 

FIELD: disintegrators and crushing devices.

SUBSTANCE: group of inventions refers to a roller mill for grinding grain. Mill comprises at least one grinding chamber, at least one partition separating the grinding chamber from the suction chamber. In the partition, at least one suction port is formed, through which air from the suction chamber can be drawn into the grinding chamber by the pressure difference between the chambers. Also, the mill has at least one closure member for opening and closing the suction opening, the closure member being designed and disposed to be in an open position, or with the possibility of transitioning to an open position, in which the closure member opens the suction port when the pressure difference becomes above a threshold value, or with the possibility of a closed position or a transition to a closed position, in which the closure member closes the suction port when the pressure drop becomes below the threshold value. Suction unit is formed by chambers and a separating baffle with an opening.

EFFECT: roller mill and the suction unit used in it prevent dust from escaping into the environment.

15 cl, 6 dwg