The Way an Asphalt Plant Functions | Atlas Technologies

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Atlas Technologies
The Way an Asphalt Plant Functions Atlas
Technologies
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• The asphalt material mix produced in an asphalt
  mix plant is commonly a combination of aggregates
  of dissimilar grades and sizes. These aggregates
  are mixed in with liquid bitumen in required
  amounts and heated up together to create a hot
  mix of asphalt. For those of you who are not
  familiar with asphalt, it is a mixture made out
  of bitumen and pulverized rock which is used in
  making pavements.
• The quality and characteristics of an asphalt mix
  are determined by a few key factors, viz., the
  amounts of aggregated used, the type of recycled
  pavement as well as the grade and measurement of
  bitumen that went into making the hot mix.
• How is a hot mix asphalt prepared? By drying and
  heating aggregates in turn until all of the
  bitumen present in the mixture is completely
  coated. The drying of the aggregate is done by
  rolling the material inside a dryer drum which is
  set at a slight include with a burner below that
  generates heat to evaporate the dampness. The
  aggregate remains in the top half of the drum.
  The interior is outfitted with flights of
  different kinds whose job it is to facilitate
  heating. The mixing chamber is also where the
  aggregates are fully coated with bitumen present
  in the mixture.
• Two Variants of Asphalt Plants
• Broadly, there are two types of asphalt plants
• One is the batch plant aka, discontinuous tower
  plant which produces asphalt in batches
• Drum plant, aka, continuous plant which is
  calibrated to produce asphalt nonstop without a
  break. These plants operate in one of the two
  basic principles, parallel and counter flow.

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• THE WAY AN ASPHALT BATCH PLANT FUNCTIONS
• With the batch mix plants, the process of mixing
  begins when the aggregates are unloaded in the
  specific bins of its feeders. A conveyor moves
  the aggregates from the bins to a drying drum
  which is fitted with a set of internal flights
  designed to dry the contents efficiently. Outside
  the drying drum, the aggregates are transferred
  to the vibratory screen where through
  sedimentation they are separated based on the
  particle size. Next, the aggregates, depending on
  their sizes are dumped into the available hot
  bins.
• THE WAY AN ASPHALT BATCH PLANT FUNCTIONS
• With the batch mix plants, the process of mixing
  begins when the aggregates are unloaded in the
  specific bins of its feeders. A conveyor moves
  the aggregates from the bins to a drying drum
  which is fitted with a set of internal flights
  designed to dry the contents efficiently. Outside
  the drying drum, the aggregates are transferred
  to the vibratory screen where through
  sedimentation they are separated based on the
  particle size. Next, the aggregates, depending on
  their sizes are dumped into the available hot
  bins.
• Once the aggregate sizes are sorted and
  controlled, the aggregates of the required types
  are let to enter the mixing chamber. Here, they
  are mixed up together and tossed in with bitumen
  in a measured amount. The bitumen is sent to this
  unit directly from the storage tank where
  contents are stored at a high temperature. Inside
  the mixing unit, the mixing takes places in
  required proportions to ensure that the final
  product is just as expected. Once the mixture is
  ready to be discharged, it is unloaded into the
  hot storage silo and in case it is ready to be
  moved, in a truck.

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• PARALLEL FLOW DRUM PLANTS FUNCTIONING
• As mentioned above, the parallel flow drum plants
  function nonstop by continuously producing
  asphalt, unlike those plants that produce in
  batches. In these parallel flow drum asphalt
  plants, a single dryer is used for the twin
  purposes of drying and mixing. Inside the dryer,
  the mixture is dried and then mixed up with
  bitumen. The weighing of the mixture happens on
  the charging conveyor belt where the aggregates
  are weighted on their way to be moved from the
  cold feed bins to the mixing drum. Post weighing,
  the mix is dumped in the lower end of the drum
  for storing in one of the silos or directly
  loaded in a truck for instant transfer. Parallel
  flow asphalt mixers normally use both dry and wet
  kinds of pollution control systems. Available in
  capacities starting 40 tph to 200 tph.
• COUNTER FLOW DRUM PLANTS FUNCTIONING
• True to its name, these counterflow type drum
  mixers move the aggregates in directions opposite
  to that of the burner flame. All this happens
  inside the drum unit. Moving in the contrary
  direction, the aggregates mix and dry easily. For
  effective and faster drying the mixing unit where
  the aggregates are tossed in bitumen is placed
  behind the burner flame in order for the flame to
  be kept as far away as possible from the bitumen.
  That ensures that the mixture does not catch fire
  leading to excessive smoke inside the unit. Its
  a safer and more effective technology compared
  with the parallel flow. Available in capacities
  starting 40 tph to 200 tph.
• We are manufacturer and exporter of all the types
  of asphalt plants like batch type and continuous
  type. Contact us to know more

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• Contact US
• Atlas Technologies Pvt. Ltd.
• Block No. 97, Mehsana-Ahmedabad Highway,
• Behind Bhupendra Crane House, At Po. Ditasan -
  382710
• District Mehsana, Gujarat, India.
• Export inquiries 91 97238 10565
• Email contact_at_atlastechnologiesindia.com