Brief Process Description
The Acetylene Plants manufactured by us are equipped with fully
automatic controls and safety devices. Our acetylene gas generator is a
stationary and carbide to water type fully automatic generator.
Acetylene gas is the result of the chemical reaction that takes place
between calcium carbide and water. The by-product of this reaction is
calcium-hydroxide (lime slurry), which is continuously discharged during
this process from the generator. The acetylene produced in this chemical
process inside the generator is at a pressure of about 0.5kg/cm2. This
acetylene gas is then passed through coolers, driers, and purifiers to
achieve purity and after that it is compressed in a three staged water
cooled compressor. Then, the compressed acetylene gas is filled into the
cylinder through fifteen filling manifolds and thence cooled by spraying
water on the cylinders, so that it gets thoroughly absorbed in the
acetone, already present in the cylinder.
- Oxyplant Acetylene - OPA.
- Oxyplant Acetylene - OPA.
- Oxyplant Acetylene –
Acetylene
Generator
'Oxyplants'
Acetylene Generator is basically a horizontal cylindrical shaped steel
vessel having dish ends with agitator and drive unit, carbide hoppers,
screw feeders with drive unit, flash back arresters, safety valves,
drain systems, and allied automatic control systems.
The generator tank is filled with water up to a high level and carbide
is dropped into the water with the help of screw feeder system. Carbide,
when dropped inside the generator tank leads to a chemical reaction,
which produces the acetylene gas. This gas then passes through the flash
back arrester towards other systems in the plant.
Cooler Condenser
When
the acetylene gas comes out of the acetylene generator, it is cooled in
an equipment called the cooler condenser, where the excess moisture
present in it is also removed through condensation. For the cooling
purpose, cold water is circulated in a jacket which extends up to the
length of the cooler condenser. In this process, the acetylene gas which
circulates from top to bottom inside the cooler condenser get cooled.
Low Pressure
Drier
Low
pressure drier is a cylindrical vessel, which is charged with anhydrous
calcium chloride. The function of this equipment is basically to absorb
the moisture that is present in the gas. In this process, liquid calcium
chloride get collected at the bottom of the drier and drained out at
regular intervals.
Purifier
Purifier
refers to a large vertical cylindrical vessel, which is divided into two
sections through wire mesh framework and filled with purifying mass. The
gases like hydrogen sulphide, phosgene, etc. are get absorbed through
this mass. The purifying mass needs to be revived again after every 125
hours of working by exposing it to the external (outside purifier)
environment.
Ammonia Scrubber
It
is a vertical vessel equipped with level gauge. Water level inside the
ammonia scrubber is to be maintained up to the water make-up line at all
times. In this equipment, the acetylene gas is bubbled in water, which
results in scrubbing of all the water soluble impurities like the
ammonia. The resultant acetylene gas is a little wet, which facilitates
its compression and further drying.
Acetylene
Compressor
Acetylene
compressor is a three stage compressor, which is driven by an
incombustible motor, and lubricated by flash and forced lubrication
system. The compressor, along with the interstage coils, and purge
vessels are submerged in a water-tank to ensure that no pressurized
acetylene gas comes in contact with air and also that all the components
are continuously cooled. The back-pressure regulating valve determines
the third stage pressure.
High Pressure
Drier
High
pressure drier consists of three vertical columns. Out of these three
columns, the first column is filled with mild steel chain packings,
which prevents any void and ensures proper mixing. The second and third
columns are filled with anhydrous calcium chloride and are also fitted
with two capsules each. Each column is equipped with drain valves, which
periodically drain out the moisture that gets collected at the bottom of
the columns.
Filling Manifolds
The
acetylene gas filling manifolds are comprised of two headers. Each of
these headers has a provision for filling about 30 cylinders at a time.
Each header is also fitted with a non-return valve, a flash-back
arrester, pressure gauges, and manually isolating valves.
