A control device for the coal pulverizing apparatus includes a first command value generation part for generating a command value of a first parameter including at least one of rotational speed of the table, pressing force of the roller to the table, or air supply amount in the air supply part, and a second command value generation part for generating a command value of a second parameter including a rotational speed of the rotary classifier. The first command value generation part is configured to determine the command value of the first parameter, based on a first preceding signal determined in accordance with at least load information of a combustion device which burns the pulverized coal from the coal pulverizing apparatus. The second command value generation part determines the command value of the second parameter, based on a second preceding signal determined in accordance with at least the load information.

A bearing element suitable for supporting a grinding disk in a roller mill, comprising a plate-like or disk-shaped base element, an annular disk and a spacer element, wherein the annular disk is disposed substantially parallel to the base element and at a distance from the base element, and is connected at its bottom using an annular spacer element with the base element, and the annular disk has means on its upper side for receiving the axial bearing segments, whereby the spacer element is designed as an annular strip extending in the axial direction and has a plurality of spaced-apart arches in the circumferential direction, whose openings point towards the base element.

A bearing element suitable for supporting a grinding disk in a roller mill, comprising a plate-like or disk-shaped base element, an annular disk and a spacer element, wherein the annular disk is disposed substantially parallel to the base element and at a distance from the base element, and is connected at its bottom using an annular spacer element with the base element, and the annular disk has means on its upper side for receiving the axial bearing segments, whereby the spacer element is designed as an annular strip extending in the axial direction and has a plurality of spaced-apart arches in the circumferential direction, whose openings point towards the base element.

A juice extractor includes a food processing chamber having a food inlet, a juice outlet and a pulp outlet. The food processing chamber includes a food entry section having the food inlet and the juice outlet, and a food compression section extending between the food entry section and the food pulp outlet. A spindle extends through the food processing chamber for transporting food from the food entry section through the food compression section. The spindle has a body and a helical member extending from the body by a height of no more than 10 mm. The helical member includes a helical cutting portion in the food entry section, and a motor having a gear box coupled to the spindle and configured to rotate the spindle at a rotation speed of at least 300 rotations per minute during operation of the juice extractor.

A drive arrangement for driving a work machine includes a motor configured to generate a torque, and a transmission apparatus configured to transmit the torque from the motor to the work machine. The transmission apparatus includes a fluid coupling and at least one controllable torque transmitter configured to control transmission of the torque from the motor to the work machine.

A method embodiment involves preparing single metal or mixed transition metal chalcogenide using exfoliation of two or more different bulk transition metal dichalcogenides in a manner to form an intermediate hetero-layered transition metal chalcogenide structure, which can be treated to provide a single-phase transition metal chalcogenide.

The invention relates to a multi-cyclone and to a method for operating such a multi-cyclone for separating fine material and very fine material. In this context, a multi-cyclone according to the invention has multiple individual cyclones which are of essentially identical construction and which are housed in a housing that has an upper and a lower chamber. Via a supply into the lower chamber it is possible to introduce in a targeted manner cyclone regulating air which can be used to set the quantity, the fineness and/or the purity of the material separated by means of the multi-cyclone.

A wear-resistant element for partial insertion into a recess on the surface of a wear area of a comminuting device. The wear-resistant element includes particles made of a highly wear-resistant material which are embedded in a matrix material.

A planet carrier arrangement includes a bearing assembly having first and second roller bearings and a traction element having a first end supported by the bearing assembly such as to enable the traction element to oscillate. A planet carrier is mounted in a suspended manner to the traction element, wherein one of the roller bearings of the bearing assembly is configured to absorb an axial force seeking to lift the planet carrier.

A pulverizing device includes: a housing; a pulverization table configured to rotate inside the housing; and a throat, disposed inside the housing on a radially outer side of the pulverization table, for forming an upward air flow. The throat includes: an inner ring extending along an outer periphery of the pulverization table; an outer ring, disposed on a radially outer side of the inner ring so as to form an annular flow passage between the inner ring and the outer ring; and a plurality of throat vanes disposed between the inner ring and the outer ring. The following expressions are satisfied: 2.0L/d4.0; and 0.5H/d1.5, where H is a gap between the inner ring and the outer ring with respect to a radial direction, L is a length of the throat vanes, and d is a distance between adjacent two of the throat vanes,