US 10,744,513 B2 · Detection of bridging in gyratory or cone crusher

Abstract

A method, crusher, computer program and crushing plant, in which bridging generated on an arm is detected in a crusher that has a body, an outer wear part fixed to the body, an outer wear part fixed to the body; a support cone rotatable inside the body via a main shaft); an inner wear part on a cone surface of the support cone; and a support of the support cone. The support contains a group of arms inside the body and extending inwards from the body; a main shaft radially supported to the arms; and a thrust bearer supported by the arms for supporting the main shaft and for axially supporting the support cone via the main shaft. The crusher crushes mineral material between the inner wear part and the outer wear part. Measurement information is received describing stress of the support of the support cone; and bridging formed onto an arm is detected from the measurement information.

Claims19

Dependent claims

A method for detecting bridging during operation of a crusher including a body, an outer wear part fixed to the body, a support cone rotatable inside the body by a main shaft and an inner wear part on a cone surface of the support cone, where the crusher is arranged to crush mineral material between the inner wear part and the outer wear part during operation, the method comprising:

providing a group of arms inside the body and extending inwards from the body such that the main shaft of the crusher is radially supported by the group of the arms;
and
providing a thrust bearer supported by the group of arms for supporting the main shaft and for axially supporting the support cone via the main shaft;
receiving measurement information describing stress of the group of arms when supporting the support cone;
and
detecting bridging formed onto one or more arm of the group of arms from the measurement information.

3 more elements

A gyratory or cone crusher comprising:

a body;
an outer wear part fixed to the body;
a support cone rotatable inside the body via a main shaft);
an inner wear part on a cone surface of the support cone;
and
a group of arms inside the body and extending inwards from the body;
a main shaft radially supported to the group of arms;
and
a thrust bearer supported by the group of arms for supporting the main shaft and for axially supporting the support cone via the main shaft;
wherein the crusher is arranged to crush mineral material between the inner wear part and the outer wear part;
and
a processor having at least one input for receiving measurement information describing stress of the support of the support cone, wherein;
the processor is operable to detect bridging formed onto one or more arms of the group of arms from the measurement information.

10 more elements

Dependencies are inferred from the claim text.

Detection of bridging in gyratory or cone crusher

Life of this patent

Detection of bridging in gyratory or cone crusher

Life of this patent

Abstract

Claims19