Technical solutions

Dynamic overview

Use of the SolidSim flowsheet simulation system for holistic modeling of lignite beneficiation

RWE Power AG processes lignite on an industrial scale to produce briquettes, pulverized lignite, fluidized-bed coal and coke. Flowsheet simulation software is used for the holistic modeling, simulation and optimization of process-engineering processes and operations, and can also offer further benefits, such as rapid performance of case studies when
customers’ requirements change and systematic exploitation of process-engineering know-how. The simulation tools already established were developed for the field of fluids process-engineering, however, and are not suitable for modeling of the lignite beneficiation process. The development of the SolidSim flowsheet simulation system now introduces a tool for also modeling solids processes in a similar manner [1].

1 Introduction
Rhineland lignite is mined by means of open-cast operations in the region approximately bounded by the cities of Aachen, Cologne and Mönchengladbach. The ROM lignite produced from these open-cast workings has a water content of up to 60 wt.%. The main part of this coal is used for power generation, a further fraction is processed in beneficiation plants to obtain dried lignite, and then, downstream, further products such as lignite coke, briquettes and pulverized lignite. The Ville-Berrenrath lignite beneficiation plant located in the Hürth-Knapsack industrial zone is one of...

Related articles:

Issue 07-08/2017

Optimization by computer - Optimization of Mineral Processing Plants with Simulation Software “NIAflow”

1 Introduction Years can pass from the first feasibility study through the project phase to the start-up of a mineral processing plant. During this time the originally defined technical and commercial...

Issue 07-08/2010

New model

Analysis and simulation of hydrocyclone performance with an advanced model of the Tromp curve

1 Introduction Growing demands for product quality in the minerals industry are of greater importance than ever and a growing challenge for all producers. The first step in mineral processing is...

Issue 12/2009

New simulation tool

Modelling and simulation supply the answer to navigating the ever-growing oceans of data that threaten to engulf us. The new HSC Chemistry 7.0 (Fig. 1) from Outotec Research Oy, of Pori/Finland is a...

Issue 10/2018 From digital prototype to Hybrid Twin™

New potentials in the dynamic simulation of belt conveyors

1 The state-of-the-art in simulation of dynamic processes in belt conveyors Dynamic dimensioning and design of belt conveyors are now well established on the conveying and handling systems market....

Issue 04/2009

On demand control of reagent dosage for hard coal flotation

1. Introduction The beneficiation of the finest fraction is the most expensive process step in hard coal preparation. Herein the froth flotation is an integrated part which influences the operating...