New Ermont technology: TSX

TSX – very--high-recycling-rate HMA production has never been easier

With more than 40 years of experience in asphalt plant recycling technologies, ERMONT has created the TSX technology:

technology unique in the world implemented in all continuous hot-mix asphalt plants of the TSX HIGHWAY (supermobile) and

TSX INCITY (stationary) ranges and that allows for the recycling of up to 70% RAP, easily, while guaranteeing high-quality mix

and environment protection. An outstanding innovation that made it possible for ERMONT to win 1st prize in the most recent

edition of the Fayat Innovation Challenge (“Eco-responsibility” category).

ENVIRONMENT

In addition to proportionally decreasing, thanks to recycling, the need in raw materials (bitumen and aggregates) and the

amount of CO2 emissions linked to production and transport logistics of these raw materials, the TSX technology also includes

a new process: DUOTHERM. It combines thermal exchanges between RAP and slightly overheated aggregates and thermal

exchanges between RAP and moderate-temperature gases that have already exchanged with aggregates beforehand. The

result is: low emissions into the atmosphere, below statutory regulations.

HIGH-QUALITY MIX

The TSX technology guarantees high-quality mix thanks to a single dryer drum composed of 3 distinct zones, associated with

a twin-shaft mixer as a standard:

• The 1st zone of the drum, the combustion zone, is where the burner’s flame expends and generates hot gases to heat-up

and dry materials.

• In the 2nd zone of the drum, hot gases coming from the 1st zone are going to exchange first with the aggregates alone in order

to heat them, dry them, load energy into them, and to lower gases temperature. This zone also acts as a thermal screen to

avoid any flame radiation in the 3rd zone.

• In the 3rd and last zone, RAP are introduced via the recycling ring, and are dried thanks to the DUOTHERM process (see

above).

During this whole operation, RAP binder migrates homogeneously onto the aggregates (first step of binder remobilisation). At

the drum outlet, this homogeneous mix (in terms of grain size and temperature) is conveyed to the twin-shaft mixer where

it is mixed with imported binder and potential rejuvenator. The very long mixing time guarantees full binder remobilisation.

With ever changing environmental requirements, ERMONT constantly provides ever more innovative solutions to meet them.

The TSX technology is in line with this dynamic and aims at accompanying ERMONT’s clients in their Eco-responsible projects

of tomorrow.