steinexpo 2023

Highlights at steinexpo 2023 including follow-up reports

Issue 07-08/2010

Generation of compressed air under extreme conditions

For about 100 years K+S KALI GmbH have been extracting salt in the potash mine of Sigmundshall near Hanover. Up to 3 million t of crude salt per year are extracted there. This corresponds to an output...

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Issue 07-08/2010

Promag 55S measures up to tough conditions

K+S KALI GmbH operates six mines, which produce the two raw materials, potash and magnesium. Since the raw salt obtained from the mine only contains 15 to 35 % of usable material, K+S uses a range of...

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Issue 07-08/2010

One hundred percent pure

Combining ecological awareness and economic interests is a core issue in the present day. With its ground-break-ing ­solutions for separating and sorting bulk solids, the ma­- chine engineering...

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Issue 07-08/2010

Program-Controlled Grinding and Screening Plant

A common problem in processing high-value bulk materials is that both a large size reduction ratio and a de-fined final grain size distribution within narrow grain size limits are often required. Dust...

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Issue 07-08/2010

New ultrasonic system improves screening processes

For ultrasonic screening Allgaier has come up with a new, further developed ultrasonic system for its tumbler and vibrating screens (Fig.). That means increased throughput rates and higher screening...

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Issue 07-08/2010

Investment in iron ore washing gathers pace in India

India is one of the giants of iron ore production, lying fourth in the global production league behind China, Australia and Brazil. Current production of iron ore in India is around 150 million metric...

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Issue 07-08/2010

On trial

Systematic study of hydro vacuum cyclones

1 Starting Situation In tunnelling, the geology, advance rate and diameter of the boring machine dictate the requirements for the downstream separation plant. This is based on a modular design and...

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Issue 07-08/2010

Gypsum reduced

Gypsum constituents in recycled concrete – origin, effects and removal by jigging, part 2

4.2 Procedure for removing gypsum from recycled ­building materials during the jigging trials 4.2.1 Test set-up The Triple A wet jigging machine together with all the necessary accessories and supply...

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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...

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Issue 07-08/2010

New establishment – well-tried

On 2 October 2009 a new business was established in Hamelin/Lower Saxony – SKG-Aufbereitungstechnik GmbH. This was a bold step at a time when companies have been disappearing from the market due to...

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