The present disclosure relates to a crusher mantle lifting device. Attachment elements are configured to be attachable to a crusher mantle. Each attachment element includes a main portion having an inner surface facing the mantle and an outer surface. A locking portion projects from the inner surface and is configured to protrude into a corresponding opening in the mantle. One or more lifting portions project from the outer surface. A tightening means is configured to press the attachment elements towards the crusher mantle. The disclosure also relates to an arrangement and a method.

The present disclosure relates to a crusher mantle lifting device. Attachment elements are configured to be attachable to a crusher mantle. Each attachment element includes a main portion having an inner surface facing the mantle and an outer surface. A locking portion projects from the inner surface and is configured to protrude into a corresponding opening in the mantle. One or more lifting portions project from the outer surface. A tightening means is configured to press the attachment elements towards the crusher mantle. The disclosure also relates to an arrangement and a method.

The present invention provides an apparatus for suspending and guiding at least one tool or work platform externally about a grinding mill, the apparatus including (a) a fixed track suspended above the grinding mill and extending about an outer periphery thereof in a plane substantially parallel to a surrounding floor of the mill, and, (b) at least one carriage assembly mounted to the track for suspending and guiding the at least one tool or work platform, the at least one carriage assembly configured to provide the at least one tool or work platform with at least two degrees of freedom, and wherein a first degree of freedom is linear movement along a first axis orthogonal to the surrounding floor of the mill.

The present invention provides an apparatus for suspending and guiding at least one tool or work platform externally about a grinding mill, the apparatus including (a) a fixed track suspended above the grinding mill and extending about an outer periphery thereof in a plane substantially parallel to a surrounding floor of the mill, and, (b) at least one carriage assembly mounted to the track for suspending and guiding the at least one tool or work platform, the at least one carriage assembly configured to provide the at least one tool or work platform with at least two degrees of freedom, and wherein a first degree of freedom is linear movement along a first axis orthogonal to the surrounding floor of the mill.

A jaw crusher assembly comprising a jaw crushing apparatus and a service platform. The jaw crushing apparatus having first and second opposing jaws, each opposing jaw having a crushing face. The crushing faces opposing each other in an oblique relationship when the opposing jaws are in an at least partially opened state. The service platform provides at least two service configurations within the opposing jaws and being operable between a first service configuration and a second service configuration by rotation of the service platform.

A jaw crusher assembly comprising a jaw crushing apparatus and a service platform. The jaw crushing apparatus having first and second opposing jaws, each opposing jaw having a crushing face. The crushing faces opposing each other in an oblique relationship when the opposing jaws are in an at least partially opened state. The service platform provides at least two service configurations within the opposing jaws and being operable between a first service configuration and a second service configuration by rotation of the service platform.

A distribution metering device (I) for a roller mill which includes a housing (2) with at least one grinding stock inlet (3), at least one grinding stock outlet (4), and a feed roll (5) which is arranged in the housing (2) for metering grinding stock into a grinding gap of the roller mill through the grinding stock outlet (4). The feed roll is rotatable about a feed roll axis (SA). A conveyor shaft (6) is arranged in the housing (2) for distributing grinding stock along the feed roll (5). The conveyor shaft is rotatable about a conveyor shaft axis (FA). The conveyor shaft axis (FA) is substantially parallel to the feed roll axis (SA), and a first fill state sensor (7) is arranged in the housing (2) for ascertaining a first grinding stock fill state of the housing (2).

A dual-purpose grinder and an operating method thereof. The grinder includes a material container assembly. The material container assembly includes a grinding head (12, 27) fixedly connected to a material container body (10, 20), and a grinding sleeve (15, 26) rotatably connected to the grinding head; the grinding head is fitted in the grinding sleeve, and the grinding head and the grinding sleeve define therebetween a material compartment for accommodating materials; and a connecting structure capable of being connected to an external power assembly is arranged at an upper end of the material container body. According to the dual-purpose grinder, the material container assembly can be individually used to enable manual grinding, the material container assembly can also be combined with the external power assembly to form an automatic grinder, the grinding head and the grinding sleeve move relative to each other by rotation of the material container body.

A comminution device for laboratory operation is described. More specifically, a laboratory mill, particularly a centrifugal mill, is provided that includes a milling tool arranged in a milling chamber, a housing assembly, and a milling material channel running through the housing assembly. The milling material channel opens into the milling chamber and is configured to supply, for supplying milling material to the milling chamber or to discharge milled material from the milling chamber. The milling material channel may be open to the environment and/or can be opened for successively supplying milling material to the milling chamber during the milling operation. At least one system for passively reducing noise emissions is provided and situated in the region of the milling material channel.

A comminution device for laboratory operation is described. More specifically, a laboratory mill, particularly a centrifugal mill, is provided that includes a milling tool arranged in a milling chamber, a housing assembly, and a milling material channel running through the housing assembly. The milling material channel opens into the milling chamber and is configured to supply, for supplying milling material to the milling chamber or to discharge milled material from the milling chamber. The milling material channel may be open to the environment and/or can be opened for successively supplying milling material to the milling chamber during the milling operation. At least one system for passively reducing noise emissions is provided and situated in the region of the milling material channel.