Patent ID: 8181584

Claim:
In a vertical coal pulverizer having a discharge turret for expelling pulverized coal particles, said discharge turret having an inner wall and funnel-shaped outer wall with oblique slope and a plurality of pulverized coal outlet pipes leading outward from said discharge turret, a device for balancing and controlling the distribution of pulverized coal particles into the plurality of outlet pipes without substantially affecting the distribution of primary air flow, comprising: a plurality of adjustable coal-flow-diverting guide-vane elements within a region in said discharge turret of highly concentrated particle flow resulting from a phase separation between air and pulverized coal particle flows, said plurality of coal-flow-diverting guide-vane elements each comprising a plate, said plate positioned within said discharge turret proximate to said outer wall in a region of highly concentrated particle flow resulting from a phase separation between air and pulverized coal particle flows occurring within the discharge turret and rotatable by at least +/−90 degrees from said vertical orientation along an axis running perpendicular to said corresponding outlet pipe; and an adjustment rod affixed to said plate and rotatably and slidably retained in a rod seat in the outer wall of said discharge turret for substantially horizontal linear movement along said axis and rotation about said axis, said rod seat further adapted for substantially vertical lateral sliding along the outer wall of the turret, the position and orientation of said coal-flow-diverting guide-vane elements being thereby each independently adjustable within the flow stream relative to said plurality of outlet pipes to selectively vary the pulverized coal particle flow trajectories without causing a significant pressure drop or affecting primary air flow distribution inside said discharge turret thereby selectively altering a mass flow rate of the pulverized coal flow into each of the outlet pipes.