Thyssen Krupp Ag

Thyssenkrupp Industrial Solutions Ag

Polysius Ag

Daniel Frerich

Ludwig Könning

Thomas Rüther

Alexander Peters

Nils Hörster

Justin Bisping

Rolf Rieger

Norbert Avermann

Matthias Dowe

Daniel Austrup

A cooler for cooling bulk material such as cement clinker may include a stationary aeration grate that is for receiving the bulk material is passably by a flow of cooling gas, a conveyor unit having conveyor planks that are disposed above the aeration grate and that for transporting the bulk material are movable in a reciprocating manner in a conveying direction and counter to the conveying direction, a seal assembly that prevents grate riddlings and is attached to the stationary aeration grate, and a drive element that drives the conveyor planks and extends through the stationary aeration grate. The seal assembly may lie against the drive element, and spacing between the seal assembly and the drive element may be adjustable. Further, a method for preventing grate riddlings in a cooler may involve in the event of wear decreasing the spacing between the seal assembly and the drive element.

Cooler for cooling hot bulk material and method for preventing grate riddlings in a cooler

The roller grinding mill for comminuting brittle grinding stock includes at least one grinding roller which co-operates with a counter-face in such a manner that the grinding stock is comminuted between the grinding roller and the counter-face and a pressing system for applying a force to the grinding stock via the grinding roller. The pressing system includes: at least one hydropneumatic store and at least one dual-articulation actuating cylinder. The dual-articulation actuating cylinder is connected to the hydropneumatic store and has two pistons and a housing which acts as a coupling rod.

Grinding mill with dual articulation actuation cylinder

Growing community of inventors

Lippstadt, Germany

Daniel Frerich