Patent ID: 9700897
Date: 2017-07-11
CPC Classifications: B02C

Claim:
1. A pressing mineral material crusher comprising: a crushing chamber; a feed opening of the crushing chamber; a measuring means for measuring at least one of crushing power used, a crushing pressure and a surface height of mineral material in the crushing chamber; and an adjusting apparatus including a body and a plurality of adjusting parts each bearing-mounted at their first ends to the body by rotating axes, each of the plurality of adjusting parts including a second end rotatable about the rotating axes, wherein curved front edges of the adjusting parts combine to form a single unitary flow opening having a flow area which is adjustable by moving the plurality of adjusting parts, and wherein the plurality of adjusting parts are arranged such that the curved front edges form a perimeter around the flow area of the flow opening, and the flow area is adjustable by moving the plurality of adjusting parts, and the plurality of adjusting parts are configured to move such that the flow area is decreasing when at least one of the crushing power, the crushing pressure and the surface height measured by the measuring means is increasing and the flow area is increasing when at least one of the crushing power, the crushing pressure and the surface height measured by the measuring means is decreasing.