Vale S.a.

Bruno Eduardo Lopes

Celson José De Resende Neto

Waldinir Lima Castro Silva

Celson Jose De Resende Neto

This invention relates to a control system and method for rotary car dumpers comprising a positioning car, silos and feeders. Such control system comprises three integrated and communicating controls in closed grid, that is, the positioning car control, the silos level control and the feeder flow control. In this way, with the data of these controls, the rotary car dumpers control system is configured to maintain the level of silo at maximum, performing changes in the cycle time by controlling the positioning car to maintain the level of silos and thus achieve maximum productivity of the equipment.

Control system and control method for rotary car dumpers

A system and method for automated control of reclaimers includes a boom, a bucket wheel, and a translation system. This system comprises memorizing operating parameters used during a turning movement of the boom, allowing identification of positions where there was an overflow or an unsatisfactory reclaiming flow. With this memorized information, the flow controller makes changes to the boom turning speed (Vg), increasing it in positions where the reclaiming flow was low and decreasing it in positions where there was overflow.

Reclaimer control system and method

The present invention pertains to a system of unloading bulk material that comprises at least a silo for receiving a bulk load discharged from a load transport means; and at least a feeder to feed the load from the silo to a conveyor belt. The system comprises a flow control means that regulates the operating parameters of the feeder to make sure that an estimated calibrated flow rate corresponds to a desired flow rate, where the estimated calibrated flow rate is obtained based on a calibration factor calculated by comparing an estimated flow based on an operating parameter of the feeder with a real flow measured downstream of the silo.

System of unloading bulk material

The present invention refers to a control system for bulk material reclaimers that comprises an automated control of turning speed and translation step variables, the turning speed being controlled by estimating the reclaiming flow and the translation step being adjusted in function of distance.

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Vitoria, Brazil

Bruno Eduardo Lopes