B - Operations – Transporting – 07 – B
Patent
B - Operations, Transporting
07
B
B07B 13/16 (2006.01) B02C 21/02 (2006.01) B07B 1/00 (2006.01)
Patent
CA 2452579
There is disclosed a system and method for carrying out a combined crushing and screening operation on a supply of bulk raw material, and utilising a crusher (10) and a self-propelled screening plant (12) to receive a supply of crushed material from the crusher via an input end (11) of the plant; in which the input end (11) of the screening plant (12) includes a preliminary screening unit (11a) which operates to separate over-sized crushed material and to direct the remainder of the material to a screen box (16a, 16b) of the plant; and a conveyor unit (30) cooperates with the screening plant (12) to receive over-sized material from the preliminary screening unit (11a) and operates a) to discharge the over-sized material to a stockpile and/or b) to recycle the material to the crusher (10) for further crusher material. The conveyor unit (30) is capable of being coupled with the screening plant via lockable lift arms (27) and cooperating housing (29) when they work together, to form a composite assembly which can be manoeuvred on site when required (with support legs (13) of the conveyor unit (30) in the raised position), or of working together in a screening mode when the legs (13) will re-engage the ground. The coupling also can be uncoupled, to allow the conveyor unit (30) to be an independent freestanding unit.
L'invention porte sur un système et un procédé d'exécution d'une opération combinée de concassage et de criblage d'une source de matériau en vrac utilisant un concasseur (10) et un cribleur autopropulsé (12) recevant le matériau concassé par le concasseur dans son extrémité réceptrice (11) laquelle comporte: un cribleur primaire (11a) rejetant le matériau broyé surdimensionné, et dirigeant le reste du matériau vers la cuve à criblures (16a, 16b) de l'installation, et un convoyeur (30) coopérant avec le cribleur (12) recevant le matériau sur dimensionné du cribleur primaire et (a) soit le déchargeant sur une aire de stockage, et/ou (b) le recyclant sur le concasseur (10) en vue d'un nouveau concassage. Le convoyeur (30) se réunit à l'installation de criblage à l'aide de d'un un arbre (27) de levage verrouillable et l'enceinte associée (29) lorsqu'ils travaillent ensemble et forment un ensemble composite pouvant manoeuvrer sur le site (quand les pieds support (13) du convoyeur sont relevés) ou travailler ensemble en mode criblage quand lesdits pieds (13) reposent à nouveau sur le sol. L'accouplement peut se défaire pour permettre au convoyeur (30) de redevenir autonome.
Bratton Terence
Douglas Paul
Extec Screens And Crushers Limited
Ridout & Maybee Llp
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