TH1111A - Sweeping bridge for direct material feeding - Google Patents

Abstract

This invention concerns a sweeping bridge for sweeping material from a material pile onto a conveyor belt using a sweeping chain mounted on the bridge. A conveyor feeds material from the pile to the sweeping chain. The speeds of the conveyor belt and the sweeping bridge, sweeping chain, and conveyor are controlled by a belt scale at the outlet end of the conveyor belt. This scale controls the speed of the conveyor belt and other parts of the sweeping bridge to ensure a constant material discharge per unit time. A subsequent measuring mechanism is mounted on the sweeping bridge and moves in conjunction with it to continuously measure the conveyor belt feed rate at the position after receiving material from the sweeping chain. This measuring mechanism controls the relationship between the speed of the sweeping bridge and the speeds of the sweeping chain, conveyor, and conveyor belt. It increases the relative speed of the bridge when the conveyor belt feed rate is below a predetermined value and decreases the relative speed of the sweeping bridge when the conveyor belt feed rate exceeds a predetermined value.

Claims (2)

1. The sweeping bridge for sweeping material from a long pile consists of a scraper that is used to move material down from the end of the pile by a It is installed on a transfer body that can slide back and forth along the bridge. Sweep and perpendicular to the material core line in the base line of the pile. Front material The bridge swept along with the sweeper had been moved. Go into the material pile with the bridge drive and there is a chain sweeper parallel to the bridge for sweeping material with the scraper down the line. Connected conveyor In the direction parallel to the material pile By belt speed The conveyor was connected in relation to the drive unit, the sweeper bridge, the chain sweeper, and the transfer carrier. Weigh the belt at the exit end of the conveyor belt. Rate control Belt speed and other equipment Of the sweeping belt for the To release material at a constant quantity per unit time, with the effect of on the bridge sweeping and the movement Together with the sweeping bridge There is also a measuring mechanism installed in order to measure the level. Continuous feeding of the conveyor belt next to the point Get the material from the sweeping chain And the signal from the measuring mechanism will act That governs the relationship between the speed of the sweeping bridge and The sweeping chain as well as the transfer and conveyor to ensure the The relative speed of the sweeping bridge increases as the feed rate Of the conveyor falling below a set value and decreasing When the feed rate is higher than the rated value 2. The bridge swept according to claim 1 has a special feature that The measuring mechanism is a belt scale (2 claims, 1 page, 1 figure).