ABH4200 ASPHALT HOT MIX PLANT is designed and developed by our company, using Australia ARAN technique. Its main performance gets to the level of oversea homogeneous product. It is fit to produce high-grade road, asphalt material of surface and base. The equipment uses craft of positive mixing, batch discharge. Several of sandstone material and powder lot, bitumen can be weighed by electronic scale, controlled by industrial computer, easy operation, and reliable performance.
1) Hopper adjusts quantity of material by belting in control room.
2)Optimization designed Turn—down rig of dryer drum which has a logical placement is either to improve efficiency or to avoid overheat of aggregate
3)Hot material elevator use high-strength and deadweight chain-driven with hold-back device, life is long life is long, convenient maintenance, fine reliability. Degree of wear with influx construction is small, drive is stable with fluid coupling and the degree of impact is small
4)Screening plant which uses circular screen with double axle and seven layers and six specs is high in efficiency, not easily blocked. Vibrancy bearing is outside to avoid vibrancy bearing overheat problem.
5) Discharge door of Storage bin is double ones which has big gap, avoiding block and leakage of material。The door can be operated solely to control error of falling of aggregate, truly realizing rough and fine measurement
6) Filler storehouse use pneumatic sliding chute to discharge stuff, no arch starting, no remains in the discharge hopper. Speed of discharge is fast.
7) Stuff door of aggregate measuring hopper is double, avoiding block and leakage of material, rough and fine stuff can be discharged according to sequence which is ordered
8) Bitumen is pump injecting by many points, average mixing, reduce mixing time
9) End sealing of axle use root form, avoiding leakage of stuff. Lining board in mixer is made of high-strength wearing material. Discharge door of mixer is form of push and pull, discharge hole is big, time of discharge is short, reliability is good. High-fast mixing is fast, uniform and thorough
10) Dust filter system has two grades, the first is gravity duster, after filter, the filler goes into the hot elevator and recycled. The second grade is bag filter. Efficiency of dust filter is improved very greatly.
11) Imported brand burner, short flame, adjusts flame length, suitable for diesel and heavy oil. Controller by computer, easily learning, good reliability. Report printing facility.
Productive Capacity
Mixer batch: 4200 kg/batch
Average moisture content 5%, mix period 45s, output 336t/h. (medium-grain material)
Average moisture content 5%, mix period 60s, output 252t/h. (fine material)
Discharge Temperature: 140~160°C
Correlative Condition of Production Capacity
Conditions concerned with output are as follows:
1. Average moisture content only refers the surface moisture content, moisture content inside will lower the output ability of drying drum.
2. Ambient temperature is 20℃.
3. Material density is 1600 kg/m³.
4. Output includes filler and bitumen.
5. The proportion of aggregate must be correct and the specifications must meet the standard demand.
6. Filler density is 1120 kg/m³.
7. Altitude 2000m.
Technical Parameter, Quantity of Main Equipment
1. Cold Aggregate Supply System
Cold aggregate hopper
Capacity of hopper: 10 m³ 6 pieces
Width of charging hopper: 3500 mm
Height of charging hopper: 3800 mm
Vibrator: 0.25 KW 2 pieces
Belt feed system
Frequency control
Reducer: KA 67 SEW 6 pieces
Electromotor: DV 100L4 SEW 2.2 KW 6 pieces
Aggregate conveyor
Reducer: KA77 SEW 1 piece
Electromotor: DV132M4 SEW 7.5 KW 1 piece
Incline belt conveyor
Reducer: KA77 SEW 1 piece
Electromotor: DV 132M4 SEW 7.5 KW 1 piece
2. Dry System
Dryer drum
Incline drum and reverse current drying, friction drive, with insulating layer.
Diameter 2.98m, length 11m 1 piece
Reducer SEW 4 pieces
Electromotor: Y200L-4 SEW 30 KW 4 pieces
Installed angle 3º
Burner
For light and heavy oil: Italy EB10N 1 piece
Burning capacity 2200 kg/h
Power 55 KW
Temperature sensor: there is a temperature sensor on discharge chute of dryer drum, with digital control device on console.
Control: operator can control firing, flameout, temperature automatically in the control room.
Fuel pump: 5.5 KW 1 piece
3 Hot elevators
NE200 capacity: 360t/h
Electric motor Y225M-4 45 KW
4. Screen and Hot Preservation System
7 layer, 6 specs and 1 kind of useless material
Electromotor Y180M-4 18.5 KW×2
Hot aggregate storehouse 6 pieces
Total capacity 50M³
Material level detection high and low level-sensing device
Gate of storehouse controlled by cylinder 2 cylinders apart and rough/ precise measurement
Heat preservation heat preservation by rock wool
Overflow hopper 6 tons
5 Filler Feed System
New Filler silo 50t
Auger electric motor 11 kW
Useless filler silo 42 t
Auger electric motor 7.5 kW
Material level detection high and low level-sensing device
6 Old filler reclaimed system
| Auger | 7.5 KW | 1 pieces |
| Filler elevator | 7.5 KW | 1 pieces |
| Auger | 7.5 KW | 2 pieces |
7. Bitumen Storage and Supply System
Bitumen tank 3×50m³
Heating mode indirect heating (heated oil coil pipe and heat exchanger)
Heat preservation mode thermal insulating layer, outer packing is slivering plate
Bitumen pipeline Heat pipeline, equipped with manual reversing valve.
Unloading tank capacity: 6m³ 1 piece
Bitumen feeding pump 3QGB 80x2-46 11 KW 1 piece
8. SMA supply system:
Air power transit, with aggregate\air separator
Hopper capacity: 3m³
Auger capacity: 10m³/h
Power 3 kW
Air power transit blower volume: 18000m³/h
Wind pressure: 0.63 bar
Power: 4 kW
9. Weighing system
Aggregate weighing hopper：
Type Single hopper, 4 points support, sealed
Weighing capacity 4200 Kg
Hanging type 4 piece 2 tons loading cell hanging
Discharge method 2 piece cylinder independent control
Control device electric-pneumatic control for accurate volume
Loading cell METTLER-TOLEDO 4 pieces
Bitumen weighing hopper：
Type single hopper, heat-insulation, hot oil heating, 3 points support
Capacity 500 Kg
Hanging type 3 piece 0.5 tons loading cell hanging
Bitumen feeding mode three bitumen valve pneumatic control
Bitumen discharge mode valve control pump injecting into mixer automatically
Bitumen pump power： 3QGB100*2-51 22 kW 1 piece
Loading cell METTLER-TOLEDO 3 pieces
Bitumen Transportation Pump 3QGB90*2-46-J64H 15 kW 1 piece
Filler Measuring Hopper：
Type single hopper, with closed gate, three-point hang
Capacity 600 kg
Hang mode 3 sensors with capacity of 0.5 tons
Loading cell METTLER-TOLEDO 3 pieces
Filler feeding mode close and open with pneumatic chute and butterfly valve to realize feeding, rough and fine control.
Filler charge mode pneumatic chute and butterfly valve control
SMA Weighing hopper
Capacity： 80L
Hang mode 1 point hanging
Loading cell METTLER-TOLEDO 3 pieces
Measuring accuracy
Bitumen ±0.25%
Filler ±0.35%
Aggregate ±0.5%
10. Mix System
Type forced mixer with horizontal and twin shaft
Rated capacity 4200 kg/batch
Reductor 2 pieces
Electromotor Y250M-4 SEW 55 KW 2 pieces
11. The First Grade Dust Filter
| Weight Duster | Transit filler to Hot elevator through auger |
| Dust filter pipeline | Except for cylinder, in the dust isolation room of vibrating screen and empty measuring hopper, dust filter branch pipeline fixed. |
| Chimney | Height 19.5m |
12. The Second Grade Dust Filter
Pulse back blowing bag dust filter system
| Filter area | 1520m² |
| Blowing mode | Pulse back blowing, pulse valve timing (time adjustable) |
| Blowing | |
| Temperature test | Thermojunction + temperature display, excess temperature protection |
| Differential pressure test | air pressure display by differential pressure meter |
| Whole structure | Rainproof and outer layer is heatproof |
| Thickness of dust exhaust | ≤60 mg/N m³ |
| Auger | 7.5 KW 3 pieces |
| Draught fan | Air volume 120000m³/min |
| Electromotor Y315L-4 | Power 220 KW |
| Air door executing structure | 1 piece power 1.5 kW |
13. Pneumatic System
One air compressor is fixed on mixing plant, supply for tower, power 11 KW 2 pieces
14. Discharge and Final Product Storehouse System
Capacity of storehouse 160T
Heat preservation mode: 80 mm rock wool for heat preservation, heated oil for heating at Bottom, electricity heat for gate.
Discharge height 3.3m
Windlass power 90 kW frequency control
15. Hot Oil Heating System
Quantity of heat of heated oil furnace: 1,000,000 kcal. /h
Total power 30 KW
Cycle oil pump 22 KW
Burner imported and full automatic, fuel light oil
Control system control oil temperature automatically
Temperature of heat supply ≤260℃
Hot oil provided by customer
Hot oil cycle pipeline supply for bitumen tank, fuel warm-up
Device, final product storehouse bitumen pipeline and so on.
16. Fuel supply system
| Diesel tank | 20 M3 | 1 piece |
| Heavy oil tank | 25M3 | 2 pieces |
17. Control System
System is made up of upper control computer, charge mixture controller, burning controller, temperature controller, PLC and so on. System finished working state controlling of each working segment, charge mixture measurement, Temperature control, management and all the functions that are needed by mixing plant working. At the same time, strict protection measures are installed, when machinery working appears abnormity, correlative devices are stopped automatically; alarm is displayed on the console.
This computer control system can enact various parameters of charge mixture process on display, completing initialization setting for each pieces, after starting system, each item data can be measured and displayed, abnormity state is given alarm. At the same time, it can complete data storied during working procedure, working table printed and so on.
System structure: automatic control system is made up of upper control computer pieces, power automatically control pieces, charge mixture measurement and mixing control pieces, heat for dust filter control pieces, power distribution cabinet. Each piece is fixed in separate console respectively.
Control computer pieces: host computer is fixed to frame under console board; display, keyboard and printer are fixed on console board.
Power distribution cabinet: system has one cabinet, electricity feeding in it independently, equipped with plus electricity breaker, installed capacity 1200 KW.
Control room: 20 feet standard container, there are windows on three sides, cold and warm dual air-condition.
Total power: 900 KW
Note: All the technical specifications mentioned above will maybe change as the technology development. Please refer to the final offer.
