Activated carbon Plant
Raw material (Charcoal) shall be fed the feeding hopper where it will be conveyed through bucket
elevator and with suitable chute to the rotary kiln. Steam from the boiler will be passing through the
material and material will be activated temperature range between 900-1200 Degree Celsius where
material pore density will be increased to the desired value. After activation material will be pass
through spiral cooler and will come into the rotary cooler. After reduction of the temperature
material shall be fed to the destoner to take out the clinker ( Impurity) then it will be fed either to
the sizing screen in case of granule activated carbon or to the Raymond mill for powder activated
carbon. Waste heat of the rotary kiln shall be used to running the boiler and generation of steam on
RHA to Sodium Silicate Plant
The process involves agitation of amporous rice husk ash (carbon content 7-10%) with
sodium hydroxide water solution. The Agitated rice husk ash along with solution shall be
pumped in to the rector tank which closed system at required pressure at required
temperature. degree C. After reaction, the reacted solution shall be transferred settling tank.
After settling, liquid shall be decanted and transferred to filter press for filtration. The settle
material shall be transferred centrifuge or filter press for filtration. The shall be collection
tank where density shall be neutralized as per requirement subject to achievable density.
Afterward, Liquid sodium silicate then transfer to the reaction tank and shall be reacted with
Sulphuric Acid and precipitate the silica. Then silica shall be transfer to different tank for
cleaning and then finally transferred to the filter press followed by drier.
After screening of sand from rotary screen , it will be transferred to the ground hopper of bucket
elevator. From ground hopper , bucket elevator shall feed wet sand to the rotary dryer. After drying
of the material , it shall be stored and fed to the batching hopper where 3 nos hopper shall be there
before mixer ( One for Sand , one for cement and one for polymer) . Batching plant shall come with
airlock valve bottom of it which shall be run on timing as per composition require for the mixing .
Common discharge screw shall be given to take out material from 3 nos hopper either
simultaneously or series . Discharge screw shall feed to the material to the ribbon blender feeding
screw. After mixing of the material , it come down to Storage hopper bottom it through a valve.
From there material shall be conveyed to the packaging system . Hopper being suggested for the
system to unload the material and make ready ribbon blender for next batch.