The Working Principle Of An Asphalt Mixing Plant

Los Angeles CA

25 January, 2021

9:11 PM

Description

An asphalt mixing plant is used to mix several aggregates with bitumen to create hot mix paving material for many different construction industries. The aggregates used can vary based on the grade and scale of asphalt required. Finer aggregates can even be added as well as mineral fillers. The two main main types of asphalt mixing plants: continuous mix plants and batch mix plants. Both forms of plants produce asphalt their difference can be found in the process used to produce said asphalt. Working Principles Of Asphalt Batch Mixing Plant 1. Raw, unheated aggregates from different storage bins are fed in to the cold aggregate feeder(planta en venta). 2. The aggregates are moved in the drying drum using a conveyor system. 3. The burner fueling the drying drum ensures the aggregates are dried effectively with heat. 4. The plant is fitted with a primary dust collector. That collector is made for filtering heavy dust particles, so there is less pollution. 5. After the aggregates are dry, they can be moved to the tower unit via a bucket elevator. 6. On top of the tower unit is actually a multi-layered screening unit. As hot aggregates pass through the multiple screens, they get treated with the screening effect. 7. Separate hot bins are used to store different type of aggregates. 8. Bitumen is stored and heated in special tanks that include pumping equipment. The bitumen is pumped in the weighing hopper. 9. The aggregates are weighted and discharged in to the main mixing unit. Inside the mixer, filler materials and bitumen are blended with the aggregates. 10. After mixing to the required time, the asphalt is able to be employed. It really is typically discharged into waiting tucks, but it can also be delivered to temporary storage silos. 11. The entire plant is controlled via a computerized control panel. Parts Of An Asphalt Plant 1. Primary vibrating screen 2. Cold feed bins 3. Charging conveyor 4. Hot aggregate bucket elevator: The bucket elevator is made up of a lengthy, covered structure with lots of buckets connected to a chain system. The heated aggregates are transported to the peak in the tower in this particular elevator unit. 5. Drying drum with burner: Perhaps the most significant part of the plant. It is actually compromised of any rotating drum and burner unit. The rotation ensures the aggregates are heated up evenly. 6. Pre-separator with bag filter: The bag filter is used to eliminate harmful dust particles and toxic gases through the plant's emissions. 7. Hot bins 8. Multi-deck vibrating screens 9. Mixing unit: The mixing unit ensures every one of the raw materials are combined effectively to the correct duration. Mixers are usually jacketed so that the contents remains hot and prepared for discharge. 10. Weighing hoppers: The weighing hoppers are very important for ensuring the correct proportions of raw materials are delivered to the mixing drum. 11. Bitumen storage tanks: Direct heating type tanks include a burner. Meanwhile, indirect heating type tanks utilize an internal hot oil coil system for heating the bitumen. 12. Control Panel: PLC panel(recompensas y características) using a touchscreen display and interface for convenient oversite and charge of the plant. 13. Filler storage silo/hopper