Asphalt Plant

 

Road construction is one of the most essential and fundamental thing to the country development.

We need a road to speed up the transportation and communication between different industries. Therefore, asphalt plant is a necessity that creates asphalt paths to increase the speed of communication. Asphalt plant which has oil heater to make hot bitumen, used to produce hot asphalt. Asphalt plant built in AMS Industrial Group with the capacities of 60, 80, 120, 160 TPH, in the forms of stationary and mobile, enjoys ISO 9001(2009) for their qualifications. These mixing plants are 160ᵒC hot and 3 % primary humidity are equipped with standard facilities. Asphalt Mixing Plants are controlled automatically or semi-automatically.

Asphalt plant different parts:

1-Feed system

Material

  • Cold material silo
  • Cold material feed conveyer belt
  • Hot material elevator
  • Filler elevator
  • Filler silo

Bitumen

  • Bitumen tank
  • Bitumen pump

2-Weighning system

  • Hot material
  • Bitumen
  • Filler

3-Screen system

4-Mixer system

5-Saving system

  • Hot material silo
  • Bitumen Flask
  • Asphalt saving silo

6-Dust cleaning system

  • Multi-cyclone dust cleaner
  • Exhaust-pipe
  • Bag/Water filter

7-Heating system

  • Heater or oil heater
  • Drier
  • Drier burner

8-Control system

  • Control panel /Control cabin

Asphalt plant in detail:

1-Feed system:

  • Cold material silo

The primary material is stored in this silo, after initial weighing they load to the feeder conveyor to get the drier. The volume of this silo is 20 M3 and it can be increased. The frame of this silo is 5 mm thick and has four valves for discharge, four feeder conveyor bars, 2.2 KW electromotor and a feed system conveyor with 11m length and 60 cm width. It is very easy to control the speed of the conveyor with a 4 KW electro transmission (Variable RPM).

  • Feed system conveyor

This conveyor is 15 m length and 60 cm width which carry materials from cold silo to the drier. By adjusting the electromotor rotation, it’s easy to adjust the input load to the drier and the speed of material to the mixer.

  • Hot material elevator

This system is installed between the drier and the vibrating screen. It contains:

  • The frame made of integrated non-welded sheet.
  • The frame protected by bended studs, both in length and width.
  • Bent snappers.
  • Chain is made up of iron bars.
  • The electromotor and 15 KW transmission
  • Filler elevator

This system is installed between spiral and the filler silo. It contains:

  • The frame made of integrated non-welded sheet.
  • The frame protected by bended studs, both in length and width.
  • Bent snappers.
  • Chain is made up of iron bars.
  • The electromotor and 5.5 KW transmission

2-Weighning system

Hot material weighting system is equipped with pneumatic exit valve, includes four silo with four 1000KG load cells and the LCD screen on the control panel, and has the capability to adjust the output feed and number of batches.

3- Screen system

Screen used in asphalt plant is vibrating screen. The sheets are 10mm. electromotor is 7.5 KW, and include 4 layers which are designed and produced in special size. The chassis is covered to prevent dust extraction. (Dust produced in the process would be transferred to multi-cyclone system).

4-Mixer system

The volume of the mixer varies according to the factory production rate in an hour. Its outside part of the frame is covered by steel and the inner part of the frame is covered by anti-abrasion sheet called tile.

For the 80 t/h asphalt mixer the length of the mirror is 5 rows of tiles, For 120 t/h 6 rows of tiles and for 160 t/h 7 rows of tiles is needed. Furthermore these tiles can be replaced.

The advantages of mixer

  •  45 KW electromotor.
  • Double movable shafts.
  • 24 replaceable anti-erosion die cast paddle tips.
  • Cleaning arms for the mixer internal surface.
  • The mixer shower is double-shelled and it has 8 bitumen nozzles, and equipped with cover and guide canal to cyclone.

Plant Tower

Asphalt Plant Tower include Vibrating Screen, Weighting System, Mixer Unit, Hot Storage Silo, Hot Material Elevator, Filler Elevator, and Tower Bases.

Parts and Specification of Mixer:

  • 45 KW electromotor.
  • Double movable shafts.
  • 24 replaceable anti-erosion die cast paddle tips.
  • Cleaning arms for the mixer internal surface.
  • The mixer shower is double-shelled and it has 8 bitumen nozzles, and equipped with cover and guide canal to cyclone.

Double jacks to discharge the mixed material in hot material silo.

Hot Materials Elevator

This system is installed between the drier and the vibrating screen. It contains:

  • The frame made of integrated non-welded sheet.
  • The frame protected by bended studs, both in length and width.
  • Bent snappers.
  • Chain is made up of iron bars.
  • The electromotor and 15 KW transmission

Filler Elevator

This system is installed between spiral and the filler silo. It contains:

•           The frame made of integrated non-welded sheet.

•           The frame protected by bended studs, both in length and width.

•           Bent snappers.

•           Chain is made up of iron bars.

•           The electromotor and 5.5 KW transmission

5- Storage system

  • Hot material silo

It has 4 silo valves in which warm materials enter separately and materials will be drained into the mixer by 4 pneumatic jacks used to open and close the outlet valve and have heat resistant and anti-abrasion bearings.

  •   Bitumen Flask

The bitumen double shelled flask is made of 6 mm sheet and has the capacity of 50,000 Liters. It is covered with galvanized steel and its insulation is glass wool. The bitumen flask has bitumen pumps and sweep double shelled pipes that use a 7.5 KW electromotor.

  • Asphalt storage silo:

The volume of storage silo varies according to the factory capacity and has 2 discharge pneumatic valves. 

6-Dust-Cleaning-System

  • Multi-Cyclone Dust Cleaner

This machinery is set between drier and sucking and gets the filler of the produced dust in the drier. The system transfer the filler to the filler of the elevator and include:

  •  Square shape body
  •  Cone duster
  • Cyclone fan
  • Bended stand made of sheet without steam
  • Chassis from studs
  •  Entrance and exit canals
  •  Fans equipped with electro gearbox
  • Exhaust Pipe

This device operates like a sucking machine and conducts dust into the dust cleaner. It is used to adjust automatic air pressure. Asphalt plant exhaust fan propeller is made of anti-erosion sheet, and its diameter varies according to the type of plant. The power of used electromotor is 35 to 65 KW, and it can be upgraded to 90 KW, to comply with bag filter.

  • Water Filter/ Bag Filter

To prevent pollution, smoke and dust to the environment water filter is used. Dust and pollution made from asphalt factory operation will be guided to the water filter and then removed.

Bag filter is a dust-proofing system with high efficiency requirements. The filter consists of vertical bags which are set vertically next to each other and pass air through it. This type of filter is used for particles with one micron diameter and if properly designed, has a refining efficiency of 95%.

 This device includes fresh air box, purification box, bag filter, compressed air box, diaphragm valves and discharge system. Bag filter is designed according to the capacity of the asphalt plant.

7-Heating-system

  • (Heater (Oil heater

Oil heater is used to produce and transfer heat to warm the bitumen. Oil is warmed between 160 to 200 degrees centigrade and by pumping and circulating hot oil in quell, bitumen is heated to the required temperature and is used.

  • Drier

The frame for this drier is made of sheet with 10 mm thick and has a 37 KW electro transmission contains two parts: Conexion and Radiation.

Bended blades with 8 mm thickness and 10 mm for input and output part are used in conexion and radiation parts. The stud 24 is used in chassis construction which has a belt-gear and steel-rings, connected to the frame using Z shape sheets. There are two free-wheeling to avoid movement in length. The materials heating is measurable using thermometer in the control cabin.

  • Drier Burner
  • Drier burner with heat capacity of 8 to 12 million calorie per hour include:
  • .Equipped with servomotor to control the air and fuel nozzle from the control cabin.
  • .Electromotor 15 KW (3000 RPM|).
  • .Dual-fuel (gas and diesel). 

8-Control-system

  • .Control Cabin and Control Panel

Control cabin is made of steel sheet and is covered with insulation Controlling system include two panels: piano and power panels. Piano panel contains all start and stop keys, weighting system displayers, heating and valve controls; and the power panel contains contactors and automation system.

  • Point

Screen of Asphalt plant is specifically designed with a coating to prevent dust extraction as well as resistance to abrasion. Mixers of asphalt based on tonnage final sintering plant Asphalt 5, 6, or 7 rows of tiles resistant and interchangeable, the body of the mixer does not harm. To thicken the asphalt and better quality, the dust stacked on drying and sieving, once again in the mixer in proper proportion to the mix is added. Emulsion is used to make asphalt instead of bitumen.

 

Model

Total Weight

Production/hour

AP-AM-60TPH (WF)

50 ton

60 ton

AP-AM-60TPH (BF)

55 ton

60 ton

AP-AM-80TPH (WF)

70 ton

80 ton

AP-AM-80TPH (BF)

80 ton

80 ton

AP-AM-120TPH (WF)

80 ton

120 ton

AP-AM-120TPH (BF)

90 ton

120 ton

AP-AM-160TPH (WF)

100 ton

160 ton

AP-AM-160TPH (BF)

110 ton

160 ton