RD175 Asphalt Batch Mixing Plant Configurations and Specifications

1.Basal configurations

1.1 Cold aggregate supply system characteristics:

1) Aggregate feeder adopts frequency conversion timing with credible capability; modularized design will be convenient for installation and conveyance.

2) The loading inlet of aggregate hopper covered with filter, the discharge port of aggregate hopper has adjustable loading door and material shortage alarm device. The two fine silo will alarm and automatic vibrating if material shortage.

3)The active roller and passive roller was equipped with prelubricated long-life bearings,tension device,and deviation prevented wheel which can adjust the tightness and deflection of belt conveyor;there is cleaning device inside and outsider belt,in order to prevent the adhering aggregate to scuff belt.

4)There is emergency stop switch on belt conveyor;

5) Flow automatically structure middle filter can prevent the oversize aggregate entering the drying drum, reduce the heat loss, avoid jam in the hot aggregate elevator and the vibrating screen.

1.2 Drying drum characteristics:

Drying drum uses four-wheel friction drive, universal connecting, transmission is smooth, uniform force.

Drying drum outer set 50mm thickness insulation layer, reduce heat loss.

Own designed patent elevating blades which are favorable for heat exchange between the aggregate and the flame, making the heat efficiency of the drying drum achieve the highest level and low fuel consumption; On the discharge outlet set temperature measuring device.

1.3 Oil burning system characteristics:

The burner is equipped with gas ignition device;

Oil adjust mode: auto-adjust; adjust ratio: 1:5

1.4 Hot aggregate elevator characteristics:

Double-row plate chain guide sliding type elevating, friction drive, special structure for feed inlet and discharge outlet, can reduce abrasion and debase the noises.

1.5 Bag dust removal system characteristics:

Multi-stage dust filter structure, the recycled dust could collected by different size grading, high utilization of the raw material, ensure the quality of the finished mixture.

Dust cleaning automatic control, pulse jet, auto-cleaning of the bags.Uses American Nomex punched felt. Waterproof and oil resistant;

Outside of the bag dust filter has insulation layer, prevent bag dew.

The bag filter equipped with the cold air valve and temperature sensor, the dust filter is auto matic control, with high & ultra-high-temperature control device (in high temperature the cold wind valve will open automaticly, in ultra-high-temperature, the burner will automaticly stop to protect the bags), ensure the bag dust filter in best working temperature, to prolong filter bag life.

1.6 Mixing tower characteristics:

Shower type patent structure of high pressure asphalt spraying system, the spraying is quick and even , no asphalt drip leakage phenomenon

1.7 Filler supply system characteristics:

Screw conveyer outlet installed butterfly valve to control the impulse; powder temporary storage bin adopts pneumatic arch breaking.

1.8 Air system characteristics:

FESTO electromagnetic valve and cylinders with long service and reliable performance

1.9 Asphalt supply system consists:

0.5million kcal heat conducting oil boiler (fuel: diesel) ;

40m3 asphalt tank 3 sets;

2m3 asphalt unloading tank 1 set;

Diesel oil burner one set, hot oil pipes, valves and pumps

2 .The technical index

(1) Production capability (standard conditions):175 t/h;

(2) Mixer rated mix capacity: 2200 kg/batch

(3) Oil consumption (standard conditions):≤6.5kg/t

(4) Operation mode: manual, semi-automatic,automatic;

(5) The hot mixture discharge temperature:130～160℃(common asphalt)

(4) The outline dimension(L*W*H):37m*32m*15m;

(5) Total installed power: 462.27kW;