Recovered materials storage tower MT 260

automatic

THE PRESENT THAT ANTICIPATES THE FUTURE
The Master Tower marks a new milestone in the production of asphalt mixes, focused on reusing existing materials, producing low-CO₂ mixes and optimizing energy consumption. The plant can manufacture mixes containing high proportions, up to 100%, of recycled materials reclaimed from existing pavements (RAP).

Overview
Range: 260 t/h and 320 t/h. RAP: 100%. Transport/Installation: fixed. Key features: parallel drum, 1 burner.

Detailed presentation
Marini Master Tower results from simplifying and optimising the asphalt-mix production process. The concept uses complete recirculation of produced gases to maximise introduced energy and enable total recovery of reclaimed pavement materials. The process delivers low-emission mixes and significant energy savings while preserving the residual bitumen in the RAP.

MAIN FEATURES:

• Re-combustion of hazardous bituminous particles (Marini patent)
• Ability to reach up to 100% RAP produced at 160 °C
• Specific mechanical, manufacturing and design features of the plant (Marini patent)
• 1 burner instead of 2 (Marini patent)

New drying concept and RAP handling
The two dryers are positioned above the mixer to avoid adhesion from hot recycled materials and to raise the material to working temperature in a controlled way. RAP leaves the RAP dryer at a minimum of 160 °C, enabling production of mixes with up to 100% RAP without overheating virgin aggregates. RAP is dried and heated by hot gases from the virgin-aggregate drum, avoiding direct flame contact with the recycled material and limiting temperature peaks.

Next-generation drying process
The Marini solution simplifies heat-producing elements by using a single burner to heat virgin materials in the first drum and then transfer, according to the blend, the required heat to the second drum that processes only the RAP. This approach reduces fuel and electricity consumption and lowers atmospheric emissions.

New management and control system
Complete automatic plant management solution with process control according to programmed instructions, while allowing the operator to intervene and modify selected process parameters.

FEATURES OF THE NEW SOFTWARE FOR RAP AND VIRGIN-MATERIAL DRYER MANAGEMENT:

• Automatic temperature control of aggregates and RAP
• Automatic burner-capacity control and automatic optimisation system for high efficiency, reduced consumption and low emissions
• Automatic control of the filtration cycle
• Automatic temperature control of the virgin-material dryer and the RAP dryer

Technical features / specifications

• Range: 260 t/h and 320 t/h
• RAP incorporation capacity: up to 100% (RAP produced at 160 °C)
• Transport / Installation: fixed
• Configuration: parallel drum
• Burner: 1 burner (replaces 2 traditional burners)
• Patents: re-combustion of hazardous bituminous particles; specific plant design and processes (Marini patents)
• Complete gas recirculation and energy recovery system
• RAP drying by hot gases to avoid direct flame contact and limit temperature peaks
• Automatic control system: aggregates/RAP temperature management, burner-capacity optimisation, filtration-cycle control
• Objectives: low atmospheric emissions and reduced energy consumption