What is the asphalt plant?
Asphalt plant is a device that is used to combine the appropriate ratio of aggregates (sand) with bitumen and Filler (sand) is used to produce asphalt. In the asphalt factory, the sand is usually transferred to the asphalt tower after it is baked, and separation, weighing, combination and mixing operations are performed on it.
Asphalt Factory Types in terms of asphalt
Asphalt is divided into hot and cold asphalt according to the way it is made and used. Hot asphalt is produced from the combination of heated sand and bitumen at a high temperature in a hot asphalt factory, and cold asphalt is produced from mixing sand and bitumen at ambient temperature without the need for heating in a cold asphalt factory.
Cold Asphalt Factory
Cold asphalt factories do not have burners, dryers, filtration devices, and sieves, and are simpler than hot ones, and they are mostly mobile.
ان Hot asphalt Factory
In the hot asphalt plant, hot or baked sand is combined with other materials in the heat.
مان Types of asphalt factories products
Hot asphalt
upper crust (Topeka)
Lining crust (binder)
bituminous base
asphalt sand
Cold asphalt (factory cold asphalt)
مان Types of asphalt factory in terms of production method
Asphalt factory
In a vertical batching asphalt factory, all materials (sand, bitumen and filler) are used according to Their size is screened and then weighed according to standard scales and mixed in batches with time intervals and intermittent stops. Asphalt from these types of factories are of high quality.
Asphalt Factory Continuous Production
Asphalt factory is a continuous production or horizontal mixer drum and there is no sieve or weighing in it. Also, due to the continuous mixing of materials, the production speed of this type of asphalt plant is high.
مان Types of asphalt factory in terms of moving capability
Mobile or mobile asphalt factory
mobile asphalt plant is a relatively simple plant that has several separate parts and wheels that It makes it possible to move the asphalt factory in the shortest time.
Semi -mobile asphalt factory
A semi-mobile asphalt plant is an asphalt plant, some parts of which, including the asphalt tower, are separated from the whole plant and can be transported And there is displacement in it too.
Fixed asphalt factory
Fixed asphalt factory is a factory whose different parts are fixed and it is not possible to move and reinstall in this type of factory.
The main asphalt factory
⚫️The storage (feeders)
In asphalt factories, both hot and cold, there are a number of storage silos with different functions. One of the silos that exist in both types of asphalt factories is the silo for storing cold materials (feeder), which usually has 4 bins or storage tanks and is used to store and store sand, filler and bitumen, and then It guides a certain amount of material gradually through the conveyor to the next steps.
The hot material storage silo is another silo located in the asphalt tower of the hot asphalt factories. This silo is responsible for storing the heated materials and transferring them to the mixer.
The asphalt storage silo is another silo that is used to store the produced asphalt until the appropriate time to empty it. It is not necessary to have this silo in the asphalt factory, and in some factories, the materials before mixing are stored in the same silo as the storage of hot materials, so that they are first mixed and then removed from the mixer at the right time for unloading.
⚫️
Conveyor belt and elevator are among the devices that are used to transfer materials horizontally or vertically in an asphalt factory. The conveyor transports the cold materials from the feeder to the drier or dryer horizontally and the elevator takes the heated materials and the filler vertically from the drier to the asphalt tower.
⚫️ Dryer system
The dryer heats the materials with the help of a turbojet burner.
⚫️It heater and bitumen flask
Oil heater is a device that heats the bitumen in the bitumen flask by heating the oil.
Asphalt
Asphalt tower includes silo (for granulation), storage silo for warm materials and asphalt, weighing (for weighing materials before mixing) and It is a mixer (for mixing sand with filler and bitumen). Asphalt towers exist only in hot asphalt factories with batch or batch production.
⚫️The filtration system
The filtration system includes exhaust fan, cyclone and bag filter, which is responsible for purifying the polluted air resulting from asphalt production.
The control system
The control system includes the control room and the control panel. The control room is the center where the operator controls all operations of the asphalt plant through precise control equipment and instruments and the control panel.
