Asphalt mixing plant

Polygonmach PBA-160 batch type stationary asphalt plant

Field of application: Construction
Empty weight: 120.000 kg
Cargo space capacity: 160.000 l
Productivity: 240 tph

STANDARD CONDITIONS The plant is designed for a production of, 160 t/h of road mix with a finished product at initial moisture 4% and of 160 C, under the following standard conditions:
•Aggregates temperature at dryer inlet 10 C
•Altitude sea level
•Average feed aggregates density 1.650 kg/m3
•Heavy-oil No: 6 calorific value ≥ 9.200 kCal/kg
•Heavy-oil No: 4 calorific value ≥ 9.700 kCal/kg
•Diesel-oil calorific value ≥ 10.200 kCal/kg
•Natural gas calorific value ≥ 7.600 kCal/kg
•Hot aggregates temperature increase 160 K
•Mixture residual moisture content 0,3 %
•Max. aggregates size 40 mm
•Material passing screen 3 mm 35 %
•Material not porous and hygroscopic with normal shape
•Production tolerance rate according to ambient and parameterconditions ± 4 %
COLD AGGREGATE BUNKERS
•There shall be 4 cold aggregate bunkers made of 5 mm St 37 sheet, they shall be approximately20 m3 and each one shall be produced separately.•There shall be 800 mm high upper additions made of 6 mm sheet on the bunkers to preventmaterial overflow.•Material cast of the bunkers shall be made with group.•Material cast flow rate of each bunker shall be frequency controlled (speed controlled) dozingone by one if desired or adjustable from computer screen.•The flow rate of the material flowing from bunkers shall be adjustable from the manual gate to beplaced on each bunker.•In case of running out of the aggregate flowing from the bunkers, there shall be a warning systemand a warning sign shall be displayed on the computer screen to warn the operator.•Vibrator engine controlled from computer screen shall be placed to relieve material flow andprevent blockage in the bunkers with thin materials.•A conveyor belt system shall be installed under each bunker to ensure material flow.•Each bunker shall be equipped with modular gratings consisting of 10x50 metal sheets 10mmrounds.•Silo loading width shall be 3000x2400 mm.•There shall be rope emergency stop system for emergencies.•Possible failures on belts shall be displayed on the computer screen.
2.SUB-BUNKER COLD AGGREGATE COLLECTOR BELT
•Horizontal belt shall convey the material taken from each bunker separately in a controlledmanner to the dryer sloped belt and be able to convey material to 160 t/h capacity plant.•Rubber belt shall be 10 mm thick; 800 mm wide 4 layered court fabric and have 4 EP 125qualities.•Belt Start/Stop operation shall be performed from computer screen. When the materials in thebunker are desired to be discharged at the end of the season, the belt may be run reversewithout running the other units.•Horizontal belt chassis shall be made of steel construction material by which the belt can operatesmooth and produced with belt tensioning system.
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•The belt shall be with separator system from each end.
•The driving drum shall be rubber coated and it shall be 1 degree angle lathed.
•There shall be rope emergency stop system for emergencies
•Possible failures on belts shall be displayed on the computer screen.
•The belt shall be 7,5 kw d/min red./motor driven, driving drum shall be rubber coated, the beltshall be able to be driven triple roller chassis. The bearings in the roller shall be enclosed type...