TERRA
GREEN SAND RECLAMATION
Becoming greener with green sand reclamation
Disposal of exhaust green sand is one of the most significant challenges faced by cast iron foundries nowadays. Exhaust sands represent a crucial issue in the management of foundry wastes, therefore the interest of processes aimed to the reclamation of exhaust foundry sands is increasingly nowadays.
Proservice has invested deeply in designing and realizing of a green sand reclamation plant that would maximize efficiency and minimize consumption.
The result of this hard work is the birth of the GREEN SAND THERMO-MECHANICAL RECLAMATION SYSTEM, a plant that combines an energetic mechanical action to exploit the friction between the sand grains and a high temperature treatment that carries out an ignition to remove all the residues of organic resins and catalysts.
1.5 ton/h INSTALLED IN LEAD TIME FOUNDRY IN ITALY
- yield > 82%
- highest energy efficiency (-50% natural gas and electricity consumption compared to similar systems)
- dynamic energy recovery system
- perfect quality of the sand (tested up to 100% of the core composition in cold-box core production)
SAND FLOW
INPUT SCREW
- Max and min level controls
- Screw conveyor driven by frequency converter
- Continuous weighing control
CALCINATION CHAMBER
- Separated combustion chamber
- Accurate control of calcination temperature
- Dynamic and fully automatic control in function of input sand amount and properties
- Low inertia refractory materials
- Highest efficiency
HEAT RECOVERY UNIT
- Energy recovery up to 300 kW/ton
- Easy cleaning and dedusting
SAND COOLER
- No fluid-bed cooler
- Lower energy consumption
- No waste of water
SCRUBBER
- Smoother mechanical reclamation system
- Minimized reclaimed sand grain refinement
- Perfect de-dusting
