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Asphalt Drum Mix Plant / Parallel Mix Plant

What is Asphalt Drum Mix Plant / Parallel Mix Plant / Continuous Drum Mix Plant?

In a asphalt drum mix plant Rotating drum is divided into two sections:
(1) a primary or radiation (heating) zone.
(2) a secondary or convention/coating (Mixing) zone.
The aggregate is not only dried and heated within the drum, but it is also mixed with the Bitumen (asphalt cement). In a drum mix plant, there are no gradation screens, hot bins, weigh-hoppers or Pugmill. Aggregate gradation is controlled at the bin feeder.

The basic plant consists of a cold feed system, a rotating drum dryer, an asphalt proportioning and dispensing system, and a surge silo. The ease of setup and operation of the drum mix plant makes it the ideal machine for operations.

Process of Asphalt Drum Mix / Parallel Mix Plant

Weight the virgin aggregates individually from the cold feed bins gate, with variable, continuous, and automatic speed of belt in the proportion indicated by the control systems. The aggregates that have been weighed are transferred to the dryer by charging conveyor.

Aggregates enter the primary zone where heat from the burner dries and heats them. Then the aggregate moves to the secondary zone where asphalt is added, and aggregates and asphalt are thoroughly blended. Continued drying also occurs in the secondary zone.

Drum-mixers are equipped with flights to direct the aggregate flow and spread the aggregates into a veil across the cross section of the drum. The aggregates must not only rotate with the revolving motion of the drum but must also spread out sufficiently to make heating and drying of all particles quick and efficient.

The drum mix plant produces the asphalt concrete mix on a continuous basis thus a temporary holding bin or surge silo is used to convert the continuous flow of material.

Several different types of conveying devices can be employed to carry the asphalt concrete from the discharge end of the drum mixer to the holding bin or surge silo. Bucket elevators, drag slat conveyors, and belt conveyors are the three most common means of transport. Each device has its own advantages and disadvantages.

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Components of Asphalt Drum Mix Plant

Double Drum & Counter Flow Asphalt Plant in Ivory Coast

Cold Feeder Unit

Modular designed M.S. structure chases and M.S. plate hopper body [ .. ]

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Double Drum and Counter Flow Asphalt Plant in Nigeria

Dryer and Mixing Unit

Modular designed chases with adjustable jacklegs for slop setting [ .. ]

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Double Drum and Counter Flow Asphalt Plant in Ethiopia

Burner Unit

Two/Three nozzles type pressure jet burner with high-low intensity offers [ .. ]

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Double Drum and Counter Flow Asphalt Plant in Guyana

Filler Unit

Modular designed structure and hopper for filler storage. Controlled discharge [ .. ]

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Double Drum and Counter Flow Asphalt Plant in Kenya

Control Unit

PLC based fully automatic, computerized controls. Both automatic and manual [ .. ]

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Double Drum and Counter Flow Asphalt Plant in South Africa

Bitumen Tank

Fully insulated tank body offers minimum heat losses. Two way heating coil designed [ .. ]

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Double Drum and Counter Flow Asphalt Plant in Malawi

Fuel Storage Tank

Construction from M.S. Plate with necessary charging and discharge [ .. ]

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Double Drum and Counter Flow Asphalt Plant in Uzbekistan

Pollution Control Unit

Venture system provided for higher efficiency. Brass spray nozzles for anti-rusting[ .. ]

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Double Drum and Counter Flow Asphalt Plant in Rwanda

mix storage silo

Fully insulated to maintain mix temperature. Hydraulic hopper provided at inlet[ .. ]

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Salient Features

Proper drying and homogeneous mixing of aggregate

Less fuel consumption

Proper asphalt coating and saving

Weather proof control panel

High production rate at low operating cost

Mobile or stationery

Healthy and spacious structure

Easy operation and minimize maintenance

Accuracy in quality control

Tailor made configuration can be offered on request

Product Specifications

  M-DM-35 M-DM-45 M-DM-50 M-DM-60
CAPACITY (TPH) 30-45 40-60 60-80 80-120
CONNECTED POWER 72HP/54KW 89.5HP/68KW 122.5HP/92KW 165HP/125KW
Cold agg. feeder Storage capacity 32 MT 40 MT 50 MT 60 MT
Dryer unit Dryer drum Ø X L Ø1.10 x 6.0 mtr Ø1.20 x 6.6 mtr Ø1.50 x 6.7 mtr Ø1.80 x 7.2 mtr
Drive system gear box & fluied coupling 6" N U & C 06 7" FSM & C 06 8" FSM & C 07 9" FSM & C 08
Chain size & type 2" Roller Circumferential 2" Roller Circumferential 2.5" Roller Circumferential 2.5" Offset
High pressure jet burner - capacity 360 Ltrs / Hr 480 Ltrs / Hr 650 Ltrs / Hr 1000 Ltrs / Hr
Primary dust collector unit Multicone type 12 Cones 14 Cones 16 Cones 20 Cones
Load out conveyor Hopper capacity 750 Kg 1000 Kg 1200 Kg 1500 Kg
Bitumen Tank Capacity 15 Ton 18 Ton 20 Ton 30 Ton
Burner 30 LPH 40 LPH 40 LPH 48 LPH
Fuel storage tank Capacity 10 KL 12 KL 15 KL 15/20 KL
Filter unit Hopper capacity 1 cmt 1 cmt 15 KL 15/20 KL
Air compressor Twin lobe rotary compressor
Operating control unit Controls PLC / Microprocessor thyrestore type
Extra bitumen storage tank As per required capacity (12 KL / 15 KL / 20 KL / 30 KL)
Secondary dust collector Wet srubber type Wet scrubber / Beg house type
Mix storage silo unit As per required capacity (10 T / 20 T / 30 T / 50 T)
Control Panel PLC / SCADA

Note: In order to constantly improve its products, Moon reserves the right to change the foregoing specifications without notice.

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