hot mix plant for road construction .pdf
Original filename: hot mix plant for road construction.pdf
This PDF 1.5 document has been generated by Microsoft® Word 2010, and has been sent on pdf-archive.com on 04/08/2017 at 08:12, from IP address 60.243.x.x.
The current document download page has been viewed 242 times.
File size: 450 KB (4 pages).
Privacy: public file
Download original PDF file
Asphalt Hot Mix Plants
The end product of asphalt hot mix plants is the hot mix asphalt which is
produced by the various combinations of electrical and mechanical components.
The cold aggregates are dried, heated and mixed with bitumen and minerals in
required proportions to produce the hot mix asphalt. There are stationary as well
as mobile asphalt hot mix plants which are used based on the requirements.
Apart from it, they can also be categorized into two types-asphalt batch mix
plants and the more traditional continuous mixing plant. Though both varieties of
plants produce the Hot Mix Asphalt (HMA), the drum mix plants produce
continuous HMA, while the batch mix plants produce HMA in batches.
In the continuous mixing plants, the aggregates are added, dried and mixed with
the other ingredients to form HMA, while the Batch mix plants make use of
ingredients in the weighed proportions to mix them in a separate pug mill to
produce HMA in batches. The continuous mixing drum plants usually occupy less
space than the batch mix plants, they are easy to operate and need less effort and
energy to run. However, the batch plants offer more flexibility in producing the
top quality HMA.
Continuous Parallel flow Asphalt Mixing plant: In this plant, the cold aggregates
are fed into bins and transferred to the dryer drum and this is where the
difference between the continuous process and the batching plants enter. The
aggregates are fed into the burner end of the dryer drum and the aggregates and
the flame move parallel and hence the name parallel flow asphalt mixing plant.
Once the aggregate is dried free of moisture and is heated up, it is ready to be
mixed with the liquid bitumen and the minerals to form HMA.
Counter Flow Asphalt Mixing Plant: This plant also produces Hot Mix Asphalt in a
continuous process and the functioning is similar to that of the parallel flow
asphalt mixing plant, however, the main difference lies with the introduction of
the aggregates, which is done in the opposite direction of the burner flame
position and hence the name counter flow.
Asphalt Batch Mix plant: This plant produces HMA in batches in every 40-50
seconds. The cold aggregates are fed into the feeders. These are then shifted to
the dryer drum by means of a conveyor belt. The dryer drum takes away the
moisture in the aggregates and heats it by passing the aggregates from one end to
the other through drum rotation. The aggregates then leave the drum from the
burner end and fall into the elevator which takes it to the top end of tower unit
where the vibrating screens are placed. This is where the aggregates are filtered
through different sieve sizes and collected separately into hot bins. The bins send
the aggregates as per the batches are set. The quantity of the aggregates can be
controlled as per requirement and are pumped into the mixer. Similarly, the liquid
bitumen is weighed in appropriate proportions and pumped into the mixer. The
material is now ready to be mixed with the help of the twin shaft mixer.
The Asphalt Hot Mix plants are available as both -mobile as well as stationary
plants. At Vibrant Engineering, we manufacture stationary plant to meet the
requirements. We produce, high quality, customized, easy to operate, low
maintenance plants for all kinds of road construction works.
The specifications of Asphalt Hot mix plant provided by the Vibrantengineering is
Minimum Order Quantity
Batch size (Kg)
No. of bins/capacity
90-120 TONS PER HOUR
Sy. No 279, Plot No 1, Apuroopa Colony,
Jeedimetla, Ranga Reddy Dist,
Hyderabad – 500055, Telangana.