REVOLUTIONARY HOTMIX PLANT DRUMS OUT 500 TPH

THE INNOVATIVE HOTMIX PLANT CONSISTS OF A COMPACT UNIT IN WHICH THE DRUM DOUBLES AS BOTH DRYER AND MIXER. THE EQUIPMENT, INCORPORATES SOPHISTICATED ELECTRONIC MECHANISMS FOR METERING PRECISE AMOUNTS OF AGGREGATE AND ASPHALT AND A DRUM DESIGNED FOR CONTINOUS MIX FLOW. THE DRUM MIXING PROCESS IS DETAILED. UNIFORMLY GRADED COLD FEED ENSURES HIGH OUTPUT RATES. TWO WHEEL LOADERS MOVE MATERIAL FROM THE SIZED STOCKPILES TO A THREE-COMPARTMENT COLD-FEED BIN, WHICH IS A PORTABLE UNIT MOUNTED TO A TANDEM-AXLE CHASSIS. THE BIN'S VARIABLE-SPEED FEEDERS ARE TIED IN ELECTRONICALLY TO METER THE EXACT AMOUNT OF EACH SIZE REQUIRED BY THE CURRENT OUTPUT RATE OF THE PLANT. THE AGGREGATE IS WEIGHED AUTOMATICALLY BY A BELT SCALE AS IT MOVES UP THE CONVEYOR TO THE DRUM. STONE AND SAND ENTER THE DRUM AT THE BURNER END AND MOVE THROUGH A CONCURRENT PARALLEL-FLOW PATTERN. AN ASPHALT PUMP METERS IN THE BITUMEN. FURTHER PROCEDURAL DETAILS ARE GIVEN. MODIFIED SPECIFICATIONS FOR DRUM-MIXING PLANTS HAVE BEEN ADOPTED BY SEVERAL STATE HIGHWAY FORCES.

• Authors:
  • DAY, R
• Publication Date: 1974-1

Media Info

• Features: Photos;
• Pagination: p. 28-31
• Serial:
  • Construction Equipment
  • Volume: 49
  • Issue Number: 1

Subject/Index Terms

• TRT Terms: Aggregates; Asphalt; Asphalt plants; Construction equipment; Drums (Containers); Electronic equipment; Methodology; Mixers; Wheel loads
• Old TRIS Terms: Drums; Electronic devices; Hot plant
• Subject Areas: Construction; Geotechnology; Highways;

Filing Info

• Accession Number: 00215692
• Record Type: Publication
• Files: TRIS
• Created Date: Mar 4 1974 12:00AM