Salt Processing Plant
Salt is the common name for the substance
sodium chloride (NaCI), which occurs in the
form of transparent cubic crystals.
In industry salt with its' converted forms such
as chlorine, caustic, soda ash are being used
in various industries such as petrochemical
refining, petro chemistry, organic synthesis ,
bulk drug and pharmaceutical industries.
In consideration of edible salt it should be
processed hygienically so as to make it
consumable for human being, which raises
the need of suitable refining process of salt to
meet today's demands such as its purity,
color, crystalline nature, particle size
distribution and free flowing behaviour.
Process Description:
Vacuum Refining of Salt:
Crude salt from the source is collected in
large storage vessels from where the salt is
conveyed for grinding it to fines and
segregated through a mechanical sieve.
Crude salt is then pre-washed and mixed
with water in suitable form to form brine
solution. Crude Salt is fed through a
volumetric belt Feeder for size reduction in
presence of brine solution and fed to washing
system. Many impurities categorized to
soluble and insoluble in water are gathered in
washing system which effects in the removal
of soluble and insoluble by flotation fromslurry formed in washing system. Make up
fresh water is fed at various points of the
washing system to keep soluble in
permissible limit.
From washing system concentrated slurry
is fed to the evaporation system consisting
of multi effect evaporators. Water is
evaporated from brine using steampowered
multiple-effect or electric-powered
vapor recompression evaporators.
To achieve the economy of operation,
evaporator is operated under vacuum to
reduce steam consumption. This increases
energy efficiency in the multiple-effect
system.
Vapor recompression forced-circulation
evaporators consist of crystallizer vessel,
vapor compressor and vapor scrubber. As
the brine enters in crystallizer vessel, salt
cake is precipitated out from crystallizer.
Vapor is withdrawn, scrubbed, and
compressed for further reuse.
The crystallized salt is sent to centrifuge
where it is dewatered. There will be
formation of cake which will be sent to drier
to form crystals of salts.
Features of RAJ Salt Processing Plant:
- Fully automatic system to ensure smooth and ease of operation.
- Energy Efficient.
- Optimal space requirement.
- Carefully selected material of constructions taking into account the product properties.
- PLC controlled SCADAoperated system
Services
- Turnkey Plants
- Manufacturing and Supply of Equipments
- Engineering and Supervision of Civil and Structural work
- Process and Detailed Engineering
- Project Management
- Commissioning and Training
- After Sales Support
![salt-processing-plant](images/salt_processing_plant.jpg)