HMA PLANT OPERATION. Types Of Plants BATCHDRUM MIXER.

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Presentation transcript:

HMA PLANT OPERATION

Types Of Plants BATCHDRUM MIXER

NCAT 3 Basic Purpose Of HMA Plants To produce a quality hot asphalt mixture that contains the desired proportions of asphalt and aggregate and meets all specifications.

Batch plant typical layout Storage Silo Batch Tower Dryer Conveyor Belt Aggregate Bins Burner Asphalt Storage Hot elevator

Drum Mixer Plant typical layout Storage Silo Dryer Conveyor Belts Aggregate Bins Burner Asphalt Storage

NCAT 6 Common Plant Operations Cold aggregate storage and feeding Dust control and collection Mix storage Weighing and handling

NCAT 7 Common Plant Operations Cold aggregate storage and feeding Dust control and collection Mix storage Weighing and handling

NCAT 8 Aggregate Stockpile

NCAT 9 Stockpiling Operations

NCAT 10 Cold Feed BINS Conveyor Belts

NCAT 11 Common Plant Operations Cold aggregate storage and feeding Dust control and collection Mix storage Weighing and handling

NCAT 12 Hma Mixing Plants Create Dust

NCAT 13 Centrifugal Dust Collector

NCAT 14 Baghouse Dust Collector

NCAT 15 Collector Efficiency 74 micron 30 micron 10 micron 5 micron 1 micron Cylone (80-90%) Multicone (80-90%) Wet collector (90-96%) Baghouse

NCAT 16 Common Plant Operations Cold aggregate storage and feeding Dust control and collection Mix storage Weighing and handling

NCAT 17 Storage Stucture Typical Layout HOT MIX PLANT Surge Bin Conveyor

SURGE SILO

NCAT 19 Common Plant Operations Cold aggregate storage and feeding Dust control and collection Mix storage Weighing and handling

NCAT 20 Plants are computer controlled

TRUCK BEING LOADED FROM A DIRECTLY FROM A BATCH PLANT

Truck Being Loaded From A Surge Silo

NCAT 23 Truck Loading from a Surge Bin

BATCH PLANT typical layout Storage Silo Batch Tower Dryer Conveyor Belt Aggregate Bins Burner Asphalt Storage Hot elevator

NCAT 25 Batch Plant Batch Tower Pug Mill

NCAT 26 Burner - Batch Plant

NCAT 27 Schematic of a batch plant

NCAT 28 Screen Deck HOT BINS

NCAT 29 Pug Mill

Drum Mixer Plant typical layout Storage Silo Dryer Conveyor Belts Aggregate Bins Burner Asphalt Storage

Drum Dryer Mixer

NCAT 32 Temperature Profile in Drum Mixer

Dryer For Drum Dryer Mix Plant

Dryer For A Drum Mixer Plant Aggregate Entry Point

NCAT 35 Controls

Small Drum Mixer Plant

Sometimes Things Go Wrong

NCAT 38 Questions - ?