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ASPHALT MIXING PLANT
01
Cold aggregate feed system

 
  1. The belt feeder adopts imported frequency-conversion type speed controller, instead of electric magnetic controller.
2. The frequency-conversion type speed controller is installed at the control center, in which it fulfill its function with convenient operation, reliable performance, good adjustive accuracy as well as less malfunction occurrence
3. There has equipped an alarming system at the mouth of the bin outlet, by which it can alarming when the inside cold aggregate is run out.
4. There have equipped a vibrator within the sand and fine aggregate bin wall to prevent fines sticking to the bin wall and block the aggregate feeding.
5. There has also equipped grizzly bars above each bin in order to keep the oversize aggregate out of the bin.
02
Dryer drum

1. The dryer drum shows a round drum shape, in a slanted angle of 3.5-5 degree (approx.), installs itself upon a heavy and low-position bedframe to get a stable running.
2. 4 Motors as its synchronized drive, ran by friction gear, the dryer drum has better stability and less noisy than the old type dryer drum which adopts large shape gears and chains.
3. With a rational structure, the mixing blade in the drum greatly improves the heat utilization therein. For the mixing blade was fixed by screws within the drum body, it is easy to make a replacement and avoid the deformation and spalling after being welded thereof.
4. There has rock wool insulation outside of dryer drum, to reduce its heat loss and therefore reduce the fuel consumption and increase the productivity of the dryer drum. The outer packing material use stainless steel, which has a firm protection and a gracious appearance as well.
03
Mixing system

The international oil burner
1.With support of Canadian latest flame control tech, the adopted Canadian DIGI burner can realize digital automatic flame control and use all brands of oil as fuel.
2.This burner can easily realize automatic switch between oil and flame and heavy oil and light oil.
3.Advanced oil supply system makes the heavy and dreggy oil well atomized and utilized, the oil consumption can be reduced by 10-30%.
4.Through the LCD, operator can monitor and modify the system parameters and the alarming messages. All components are operated by PLC in an easy and simple way.
04
Hot aggregate sieving system 
  1. The vibrate screen is fully sealed with few dust leaking.
2. Made of strong Manganese-steel, the vibrate screen has four folds with a 19° slanted angle, it is easy to be replaced. The screen is laid with an arch shape, by which effectively increase sieving capacity and precision.
3. With a single axis acentric gear device, The vibrator has strong vibration capacitya, its vibration frequency can be adapted by the weight which the screen bears, that means the sieving capacity is adjustable. With unique lubs (which is to reduce and keep the temperature of the bearings) at the bearings, the vibrator can have a balanced and smooth running.
05
Mixing system

1.The mixer is the key part of the mixing system. The ratio of length to width, the coefficient of the volume, the mixing intensity of the blade, the design and arrangement of the mixing blade etc would have a big influence on the mixing imported mixer, we have improved the structure of mixing arms and the mixing blade accordingly.
2.The lining board and the mixing blade is made of chromized high-strength abrasion-resistant alloy castings, which have a long life-span.
3.The fluid asphalt cement is sprayed into the mixing tank through pump, it can be evenly mixed with the aggregate, so it well assure the consistence of the finished product.
4.The mixer tank is better occupied less than 50% of its total volume, in this way; it can make the aggregate and the asphalt fully mixed, at last shorten the mixing time.
05
Dust control system
  1. The primary dust catcher is cyclone style. The collected powder here is conveyed to the hot aggregate elevator and recycled by screwing conveyer.
2. The secondary dust filter is of high pressure impulsive bag house dust filter. The bag house is made of imported refractory sack, can have long life-span and good porosity. Its target is to sieve out the powder whose diameter is more than 75um.The filter is qualified according to national standard. After the bag house type dust control, more than 100% of the dust can be removed.
3. The powder collected by the secondary dust filter will be conveyed to the recycle bin through blower pipe. The powder can also be laid out by a pipe if it is not to be recycled.
4. Bag house dust filter is vertical structure, the surrounded material over the filter has insulation which is designed to avoid powder concentration.

Model  LBJ500 LBJ800 LBJ1000 LBJ1500 LBJ2000 LBJ3000 LBJ4000
Capacity:<5%Moisture 40t/h 64t/h 80t/h 120t/h 160t/h 240t/h 320t/h
Weighing 
accuracy
Aggregate ±0.5% ±0.5% ±0.5% ±0.5%
±0.5% ±0.5% ±0.5%
Asphalt ±0.5% ±0.5% ±0.5% ±0.5% ±0.5% ±0.5% ±0.5%
Filler ±0.25% ±0.25% ±0.25% ±0.25% ±0.25% ±0.25% ±0.25%
Power (kw) 143 185 205 368 520 760 1052
Cold bins&
Output capacity
3×6m3
50T/H
4×6m3
65T/H
4×6.5m3
80T/H
4×6.5m3
120T/H
4×8m3
200T/H
5×15m3
>300T/H
6×6m3
>350T/H
Belt conveyor&
Convey capacity
width:600mm
60T/H
width:650mm
100T/H
width:650mm
100T/H
width:650mm
160T/H
width:650mm
200T/H
width:800mm
>300T/H
width:800mm
>350T/H
Drying drum(mm) φ1225*5850 φ1450*6300 φ1540*6650 φ1950*7730 φ2300*8200 φ2750*10188 φ3000*12000
Dry capacity 40T/h 70T/h 100T/h 120T/h 160T/h 280T/h 360T/h
burner Oil burner (China top brand or Foreight brand upon requirement) (optional)
Dudt filter system Water type
(recommended)
Water type or baghouse type upon requirement 
Hot elevator capacity 60T/h 80T/h 100T/h 140T/h 180T/h >320T/h >340T/h
Vibrate screen 3 grades 4 grades 4 grades 4 grades 4grades 5 grades 6 grades
Vibrate screen capacity 50T/h 80T/h 100T/h 140T/h 200T/h >300T/h >320T/h
Hot bin(compartments) 4 4 4 4 5 6
Hot bin volume 8 m3 8 m3 10m3 22 m3 36.7 m3 80 m3 100m3
Mixer capacity 500kg/batch 800kg/batch 1000kg/batch 1500kg/batch 2000kg/batch 3000kg/batch 4000kg/batch
Mixing cycle  45s 45s 45s 45s 45s 45s 45s
Asphalt tank volume  30T*1 30T*2 30T*2 30T*3 30T*4 30T*6 30T*6
Hot mix storage bin 60T(Optional) 60T(Optional) 60T(Optional) 100T(Optional) 120T(Optional) 240T(Optional)
Cold aggregate bin 3bins*6m3 4bins*6m3 4bins*6m3 4bins*6m3 5bins*6m3 6bins*6m3
Dust filter system Water type or baghouse type upon requirement baghouse type
Dust emission ≤400mg/Nm3 water type    ≤100mg/Nm3 bagehouse type
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