An all-round success

Quelle/Source: Bauverlag BV GmbH

1 Raw gravel stockpile

Quelle/Source: Bauverlag BV GmbH

2 Gravel ladder to avoid powder grain when larger sizes fall large distances

Quelle/Source: Bauverlag BV GmbH

3 Franz Demmelhuber, Managing Director at MKU

Quelle/Source: Bauverlag BV GmbH

4 MKU’s new gravel works in Eching Süd

Quelle/Source: Bauverlag BV GmbH

5 Up until autumn 2017, gravel will still be extracted from the dredging lake at the old site

Quelle/Source: Bauverlag BV GmbH

6 Water basin for the supply of fresh water (right)

Quelle/Source: Bauverlag BV GmbH

7 The raw material is first tipped in a central bottom hopper

Quelle/Source: Bauverlag BV GmbH

8 The raw material is sent on a belt from the bin to a large stockpile

Quelle/Source: Bauverlag BV GmbH

9 Supply to the stockpile

Quelle/Source: Bauverlag BV GmbH

10 Supply of the raw material to the processing unit

Quelle/Source: Bauverlag BV GmbH

11 The aggregates undergo a multistage cleaning process …

Quelle/Source: Bauverlag BV GmbH

12 … before the gravel is separated into different sizes

Quelle/Source: Bauverlag BV GmbH

13 WIMA dewatering screen

Quelle/Source: Bauverlag BV GmbH

14 Sandvik cone crusher for the production of chippings

Quelle/Source: Bauverlag BV GmbH

15 On the VHV double-belt conveyor in the left half of the photo the oversize is returned to the crushing circuit

Quelle/Source: Bauverlag BV GmbH

16 Concrete sand

Quelle/Source: Bauverlag BV GmbH

17 In three rod mills, the sand aggregate is ground to obtain round-shape particles

Quelle/Source: Bauverlag BV GmbH

18 View into one of the rod mills

Quelle/Source: Bauverlag BV GmbH

19 Hydrocyclone for classifying sand

Quelle/Source: Bauverlag BV GmbH

20 The very fine particles are removed for further processing in the freefall classifier

Quelle/Source: Bauverlag BV GmbH

21 Sand and gravel stockpiles arranged radially around the processing unit

Quelle/Source: Bauverlag BV GmbH

22 Stockpile with natural sand

Quelle/Source: Bauverlag BV GmbH

23 Dipl.-Ing. Michel Kleisli, Managing Director at ASE Technik

Quelle/Source: Bauverlag BV GmbH

24 In the AKOREL freefall classifier, the sand is produced according to recipe

Quelle/Source: Bauverlag BV GmbH

25 Discharge nozzles of the AKW freefall classifier

Quelle/Source: Bauverlag BV GmbH

26 Markus Kiser, Project Manager at ASE Technik AG, in the foreground and Michel Kleisli inspecting the new MKU site

Quelle/Source: Bauverlag BV GmbH

The relocation of a gravel works owned by the Münchner Kiesunion (MKU) from its old site on Hollern Lake between Eching and Unterschleissheim near Munich to Eching Sued (Fig. 1) has been completed (see interview in AT MINERAL PROCESSING 04/2015, p. 30-42). The associated challenges were overcome by all involved flexibly, creatively and, as the concluding unanimous verdict attested, with great expertise and reliability in an excellent manner overall. As general planner, ASE Technik AG had developed a general concept for the conversion phase with a defined cost structure as well as a flowsheet...