Mixing plant and recycled asphalt innovation from Benninghoven

Now part of the Wirtgen Group, Benninghoven is introducing new recycled asphalt pavement (RAP) developments. The firm says that its counterflow parallel drum system with hot gas generator offers considerable benefits for RAP applications. The new design ensures that the recycled material is heated in a counterflow cycle, flowing against the heat source in the drum. The design achieves a high material temperature while lowering exhaust gas temperature. The material no longer has to be run overheated, which c
March 15, 2016 Read time: 2 mins
Benninghoven offers new asphalt plant innovations
Now part of the 364 Wirtgen Group, 167 Benninghoven is introducing new recycled asphalt pavement (RAP) developments. The firm says that its counterflow parallel drum system with hot gas generator offers considerable benefits for RAP applications. The new design ensures that the recycled material is heated in a counterflow cycle, flowing against the heat source in the drum. The design achieves a high material temperature while lowering exhaust gas temperature.

The material no longer has to be run overheated, which cuts energy use. Head of marketing Lars Henrich said, “The burner is installed in a separate hot gas generator.”

This process is only possible due to the use of the hot gas generator as direct firing would damage the RAP and make it unusable. Burner, hot gas generator, dryer drum, separator cover and circulating air system are said to be precisely balanced. Henrich added that the system also produces low CO2 emissions while allowing a much higher percentage of hot RAP in the mix (up to 90%) than with earlier generation plant designs. Also new is the potential for an additional cold RAP circuit for its plants, using a different elevator than for the hot RAP.

For more information on companies in this article

Related Content

  • RAP Drum Benninghoven’s system in counter flow – The RAP solution for the future
    May 21, 2014
    Benninghoven’s Ralf Port talks about the German firm’s development with partner BAM of its counter flow parallel drum system for RAP material The asphalt industry constantly searches for new solutions in order to optimise processes within the asphalt plant. A major subject is the increase of RAP content in all recipes. Recycling Parallel Drum Systems work in various sizes and at various power levels. This technique has been established by different producers over the decades. However, all kinds of concepts
    Read More
  • Recycled asphalt innovations prove cost benefit
    November 5, 2012
    New technologies allow efficient use of recycled asphalt - Mike Woof writes The Eurobitume/Euroasphalt 2012 event in Istanbul earlier this year proved an important event with regard to asphalt recycling innovations. Key developments in this technology were announced, particularly in the field of asphalt production. One of the notable papers came from E-MAK, part of the Turkish Simge Group, which focused on its RATEK system. This technology is designed to use recycled asphalt and can produce greater throughp
    Read More
  • Multiple asphalt plants supply major highway construction
    July 12, 2012
    One company has produced eight asphalt plants for a major project, and others are introducing new models as Patrick Smith reports Algeria's US$11.2 billion East-West Highway development, the world's largest current highway construction project, forms part of the larger Trans-Maghreb Motorway project, and is scheduled for completion in 2010. It will run for 1,216km, ensuring the link between Annaba in the north-east and Tlemcen in the north-west, passing directly through 24 provinces and linking Algeria to T
    Read More
  • It’s in with the new for asphalt plants
    April 4, 2013
    A leading asphalt plant manufacturer is playing a key role in the upgrade of a major European airport, while another is said to have created one of the most modern plants in Europe. Meanwhile, a host of new plants and plant concepts have been, or are about to be, unveiled. Guy Woodford reports Intrame says its ultra-mobile UM-280 asphalt plant has played a key role in the resurfacing of the runway and taxiways at Gatwick Airport in southern England – the busiest single runway airport in the world. Around 35
    Read More

Highlighted Content