Mechanical Salt Refinery

Mechanical Salt Refinery
Mechanical Salt Refinery
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Product Code : 09
Brand Name : SSP
Product Description

From our wide range of products, we are introducing a premium quality assortment of Salt Processing Plant that is extensively used to processing salt. This plant is fabricated using quality approved components with the aid of most advanced production techniques. Further, this plant is manufactured by our experts in different models and other related specifications to suit the varied applications requirements of clients. Moreover, clients can purchase this Salt Processing Plant from us at market leading price.


  • Sturdy construction

  • Corrosion resistance body

  • Long service life

  • Low power consumption

SSP has developed two basic process for refining of salt: 1) Mechanical Salt. 2) Vacuum Crystallisation. Mechanical Salt. Crude Salt is fed into the feeding hopper of suitable capacity and it is then transferred to a belt conveyor. This belt conveyor will be fitted with a magnet to remove rubbish metal and will also be provided with a belt weigher with totaliser. Crude salt is pre-washed in special washing system. This is then fed to the feed in hopper of the wet mill for grinding. Wet mill is used to grind the salt with the help of saturated brine solution. This mixture is then passed to the slurry tank that is fitted with a slow speed agitator. This slurry is then pumped to the wash tank by a slurry pump, wherein dirt is removed from the slurry. The overflow from the wash tank is collected in a clarifier wherein brine is clarified and re-circulated in the plant. This is then pumped to the hydro cyclone by a slurry pump for thickening of the slurry. Centrifuge Section: The overflow is then passed to the wash tank for further processing and the thick slurry is then passed through a Pusher Type centrifuge which separates salt crystals from the slurry and the liquid portion is collected in a filtrate tank. This liquid portion is then pumped to the thickener for further processing. Wet dosing is done in the centrifuge. Drying & Finished Product Handling Section The salt crystals from the centrifuge are dried in a Fluid-Bed Dryer. The crystals forms a layer on the perforated sheet present in the drying chamber of the fluid bed dryer and is dried by means of hot air from a thermic fluid air heating/Indirect air heating system. The fines are removed from the exhaust stream in the cyclone separator and is collected separately. Dry salt is from the outlet of the fluid-bed dryer and is passed to the rotary sifter through a bucket elevator. The oversized salt is separated in the sifter and the over sized salt crystals is passed to the pin mill for further grinding and salt is passed to the feed in hopper of the blender wherein free flowing agent is added. This free flowing salt is then sent to the packing room by a belt conveyor. Vacuum Crystallisation: The process involves dissolving of salt in water and making a saturated solution of salt. The saturated brine is pumped out to a brine clarifier, where the insolubles settles at the bottom of the clarifier and clear brine solution is taken to a brine tank. In the brine tank required chemicals are added to precipitate out magnesium and calcium salts present along with the salt. The brine is then filtered and taken to the final brine tank. From this tank saturated brine is fed to the continuous evaporation plant where Crystallisation takes place and slurry is pumped out to a concentrate tank. This salt slurry is then pumped to a hydro-cyclone battery to get a slurry concentration up to 50-60%. This slurry is fed to a centrifuge, and from the centrifuge salt cakes with 4-5% moisture comes out. The salt with 4-5% moisture is fed to a fluid bed dryer through a crew conveyor where the iodisation is completed. In the Vibro Fluid Bed Dryer the salt is fluidized by hot and atmospheric air for drying and cooling the salt. The salt is then taken through a bucket elevator to a sieving machine. The oversize particles are collected and sent for re-dissolving in the final brine tank. To the crystallined salt is then added the free flowing agent in a screw mixer and finally sent to a storage silo. The salt packaging is done from the silo by a FFS machine in 1 kg. Packs or it can be packed in 50 kg bags as per requirement.


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