The latest shock pressure-proof weighfeeder – MULTIDOS® HPG

For more than six decades, Schenck Process weighfeeders have been paradigms of reliability, precision and operational safety. The Stock Equipment Company has been part of the Schenck Process Group since 2006. The MULTIDOS® High Pressure Gravimetric (HPG) weighfeeder is the result of collaborative work between the two companies. It is a new generation of weighfeeders/coal conveyors resistant to 3.5 bar shock pressure, offering greater efficiency than ever before (Fig. 1).


The first choice for fuel feeding

The gravimetric feeding technologies constructed by Schenck Process for coal feeding since the 1930s are considered highly reliable and as the standard for accurate raw coal weighing and feeding; something proven by the fact that more than 9000 are installed worldwide. Using state-of-the-art design elements, this proven technology has now become the ultimate solution for feeding solid fuels.


New design delivers greater efficiency

State-of-the-art mechanics and new design elements with enhanced software technology and extended control functions have been added to the MULTIDOS® HPG weighfeeder.

­For example, the MULTIDOS® HPG‘s tension roll and active belt steering system maintain belt alignment. The belt is also centred in the event of an uneven distribution of load. This removes the need for a V-guide and extends the belt‘s service life. – An internal belt scraper has been incorporated to extend the life of the drive components. And the drives can now be fitted on the left or right in the field.

­– An inlet (610 mm, 914 mm or 1000 mm wide) ensures an even flow from the coal bunker, even with coal grades with awkward material flow properties.

­– Structural explosion protection is enhanced by sloped or rounded internal surfaces and prevents coal build-up on the inside of the weighfeeder, ensuring safe operation in dust explosion zones.

­– Even the technology and software details are impressive. The MULTIDOS® HPG features DISOCONT® Tersus feeder electronics with enhanced software technology and extended functions for optimum control of gravimetric feeders using a graphic touch screen interface.


The final element of the MULTIDOS® HPG design concept is that is designed in line with NEC, CE and ATEX requirements to offer state-of-the-art safety.


Related articles:


Schenck Process launches Multidos VDP-C apron weighfeeder

Schenck Process has announced the latest extension to its Multidos weighfeeder range. Multidos VDP-C is a new range of medium-sized and compact apron weighfeeders mainly suitable for raw material...


Better dosing to the coal mill

1 Development Holcim Spain started a project at their Carboneras plant (Fig.?1) to improve the pet-coke grinding performance in order to obtain safe and reliable coal mill feeding and to improve the...

Issue 2011-11

FLSmidth to acquire Transweigh India Limited

FLSmidth has acquired 100 % of the shareholding in the Indian company Transweigh India Limited, a company in which FLSmidth has until now been a minority shareholder. Transweigh India Limited is a...

Issue 2011-04

Feeding equipment for a modern dry kiln line

In spring 2008, the Lafarge Wössingen Zement plant (Fig. 1) in Germany began the conversion of its production process from the semi-wet to the energy-saving dry process [1-5]. The project was...

Issue 2010-04

New heavy-duty weighfeeder

Siemens Industry Automation Division has developed a new heavy-duty weighfeeder for high capacities up to 800 t/h. ­The Sitrans WW300 weighfeeder provides consistent and accurate results in the...