US 2012/0056027 A1Published application

Device for the comminution of material

AssigneeFLSmidth A/S

InventorJason Steven Euculano

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Abstract

A device for comminuting material, such as a roller press, includes rollers positioned adjacent to each other and forming a nip therebetween. One of the rollers may be moveable via an actuator, such as a cylinder or hydraulic cylinder. One or more first accumulators may be attached to the actuator so that fluid is moveable from the actuator to the one or more first accumulators when the rollers are rotated to comminute material passing through the nip. One or more second accumulators may be connected to the actuator as well so that fluid from the actuator may move to the one or more second accumulators when an uncrushable element passes through the nip. Preferably, the one or more second accumulators are configured such that fluid does not pass from the actuator to the one or more second accumulators unless an uncrushable element passes through the nip.

Claims24

Dependent claims

A device sized and configured to comminute material comprising:

a frame;
a first roller attached to the frame;
a second roller positioned adjacent to the first roller such that a nip is formed between the first and second rollers;
the first and second rollers being rotatable to comminute material that passes through the nip;
an actuator, the actuator having a moveable element attached to the second roller and a fluid, the fluid being moveable to move the moveable element for adjusting a position of the second roller relative to the first roller;
at least one first accumulator being connected to the actuator such that at least a portion of the fluid is moveable from the actuator to the at least one first accumulator when the first and second rollers are rotated to comminute crushable material;
the second roller being configured to move away from the first roller when fluid moves from the actuator to the at least one first accumulator to widen the nip and the second roller also being configured to move toward the first roller to narrow the nip via the actuator;
at least one second accumulator connected to the actuator such that at least a portion of the fluid is moveable from the actuator to the at least one second accumulator when an uncrushable element passes through the nip, the at least one second accumulator being set such that the at least one second accumulator is isolated from the actuator and at least one first accumulator until an uncrushable element passes through the nip.

5 more elements

A roller press comprising:

a frame;
a first roller attached to the frame;
a second roller positioned adjacent to the first roller such that a nip is formed between the first and second rollers;
the first and second rollers being rotatable to comminute material that passes through the nip;
a cylinder, the cylinder moveably attaching the second roller to the frame, the cylinder having a moveable element attached to the second roller and a fluid, the fluid being moveable to move the moveable element for adjusting a position of the second roller relative to the first roller;
at least one first accumulator being connected to the cylinder such that at least a portion of the fluid is moveable from the cylinder to the at least one first accumulator when the first and second rollers are rotated to comminute crushable material;
wherein the second roller is configured to move away from the first roller when fluid moves from the cylinder to the at least one first accumulator to widen the nip and the second roller is configured to be movable toward the first roller to narrow the nip;
and
at least one second accumulator connected to the cylinder such that at least a portion of the fluid is moveable from the cylinder to the at least one second accumulator when an uncrushable element passes through the nip;
and
wherein fluid is not moved from the cylinder to the at least one second accumulator when the crushable material is being comminuted and an uncrushable element is not passing through the nip.

8 more elements

Dependencies are inferred from the claim text.