Sandvik Intellectual Property Ab

Richard Bern

Anders Nilsson

Torbjörn Nilsson-Wulff

Mattias Nilsson

Rolf Silfver

Kent Nilsson

Olle Hedin

Jonny Wallin

Göran Forsberg

Christian Trulsson

Björn Loven

Per Gothenqvist

Per Göthenqvist

There is described a crushing plant and a method for controlling the same. The crushing plant involves a gyratory crusher () with means for controlling a minimum gap in a crushing chamber, and is driven by a diesel engine (). A load value is retrieved from the diesel engine e.g. by means of a J1939 interface. If the retrieved value exceeds a predetermined threshold value, the minimum gap is increased. Thereby it can be avoided that the diesel engine stalls; such that continuous operation of the crushing plant may be ensured.

Crushing plant and method for controlling the same

An inner shell, which is intended for use in a gyratory crusher and which during crushing will rotate around its own center axis in a first direction, has at least one additional crusher surface. The additional crusher surface has, in horizontal projection and as seen in the first direction, a decreasing distance to the center axis. Large objects can be introduced between the additional crusher surface and an outer shell near a first end of the additional crusher surface in order to, near a second end of the additional crusher surface, be squeezed between the additional crusher surface and the outer shell and be crushed.

Shell for a gyratory crusher and a gyratory crusher

A crusher includes a replaceable first crushing member having a first crusher surface and a replaceable second crushing member having a second crusher surface. The co-operation of the crusher surfaces is defined by at least one crusher setting parameter. From measurements of a quality parameter, which relates to the nature of the crushed material, on at least two different occasions during the service life of a set of replaceable first and second crushing members and on each occasion for at least two different settings of the crusher setting parameter, a control function can be determined that describes a value, of the at least one crusher setting parameter, which on a given occasion gives a crushed material the quality parameter of which is substantially optimal. The control function is utilized for the adjustment of the crusher setting parameter for a subsequent set of replaceable first and second crushing members in such a way that on a given occasion for the subsequent set of replaceable crushing members, a crushed material is also obtained, the quality parameter of which is substantially optimal.

Method and device for the control of a crusher

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Svedala, Sweden

Richard Bern