Screen for operation underground

BEYER GmbH, the Viernheim-based company, looks back on over 40 years of development and production of screen and crusher technology. Now the company has met with a new challenge in a project in which its years of experience in screen engineering have proven a huge asset. DBE, Peine, operator of the repository for low to medium radio­active material in the Konrad shaft near Salzgitter, processes rock material for filling old tunnels at a depth of 1000 m. For this purpose, the cut material must be screened to a size of 0/45.


Through the trading house Baumaschinen König in Einbeck, BEYER offered DBE a solution. The particular challenge was that the screen had to be brought to its operating site at a depth of around 1000 m through a shaft measuring 3.1 m in length, 1 m in width and 1.8 m and 3.5 m respectively in height. A modified screen of the type TANDEM-­GLOBETROTTER (Fig. 1) with two additional stockpiling belts measuring 15 m in length was engineered to meet this challenge. Via a feeding hopper with around 3 m3 capacity, remote-controlled oversize grid and main metering belt, the material is fed to the rail-guided screen of the size 2.5/1.25 (Fig. 2), screened into the required sizes and piled up by means of the two stockpiling belts 650/15 m or loaded into dumper trucks. Above the main belt is an overbelt magnetic separator, which removes mine fittings and other metallic materials. The new screen also meets emissions limits. To suppress dust, a NEBOLEX nebulizing system supplied by the Kirchberg-based company Terz is installed.


The screen was engineered completely in the Viernheim factory, assembled and, following acceptance by DBE, dismantled into around 30 packages, transported underground and then reassembled. In this project, BEYER ­GmbH’s decades of experience in Viernheim proved especially useful.



Related articles:

Issue 2017-12

With the development of a completely new type of ­crusher, the eccentric roll crusher type ERC25-25, ­thyssenkrupp has achieved a quantum leap in primary crushing. The new crusher features a...

Issue 2017-05

Harsch-EBRD, a group of companies based in Bretten between Stuttgart and Karlsruhe in Southern Germany, is combating the increasing volume of materials from reconstruction and the higher requirements...

Issue 2018-06

A?t this year’s Hillhead show from 26 to 28 June in Buxton/UK, Kleemann is presenting the new MOBICAT MC 120 Z PRO mobile crusher and the new MOBISCREEN MS 953 EVO mobile screen.   Rugged...

Issue 2015-07-08

The compact crusher KB 500 from BEYER has been on the market for almost 20 years and has been optimized several times. For example, a newly revised crusher body was installed in 2010. After the new...

Issue 2020-10 Investment in efficiency and quality

A?t the Calanda Group in the Chur Rhine Valley/Switzerland, a new crusher of the type GIPO­REC R 131 FDR GIGA DA has been in operation since May 2020. As a first in Switzerland, the 80-tonne...