First cellulose react with caustic to form alkali cellulose then react with mono chloro acetic acid or it’s salt from sodium carboxy methyl cellulose. During the reaction of alkali cellulose with etherification agents and in the subsequent reactions, sodium chloride (common salt) is produced as a major by-product. This is washed out together with any other byproducts or, in the case of technical-grade NaCMC, left in the product. The dried cellulose ethers are then processed into granular or powder products and in some cases modified with other additives.
The plant has been configured and designed in such a way that minimum work force will require. The guar split will be fed in to the pneumatic system to feed in to the turbo screen. The turbo screen is suggested at the high of plant. The screening will be employed for the removal of foreign matter. This screened material will be stored in a storage hopper. The guar splits will fall from the screens by gravity to the storage hopper, which is configured below the screen. From storage hopper material can be taken in to double cone mixer as and when required by gravity for the rehydrating of guar splits.
All the rehydrated guar split will be sent to the hopper of Flakers at a time by gravity. Flakers will crush the guar splits and crushed guar splits will go into the ultrafine grinder at the uniform rate.
Ultrafine grinder is proposed for the grinding of crushed guar splits. This grinder has ability to grind the material without generating too much heat. Material will be fed into the dryer. Oil will be the media to convey the heat and deliver to the air. This hot air will take the material into the dryer line where actual drying will take place. Attached cyclone system will separate the material and hot air. To heat the oil Thermal boiler will be used.
The material will be screened through centrifugal screen. Material passing through the screen will be again screened through turbo screens as additional control. This material will be sold as a premium product. Oversize of the centrifugal screen will be screened through turbo screen to separate another grade in terms of particle size followed by additional screening. The oversize will be screened through another turbo screen to separate another grade. Oversize will be passed through another grinder. The material will be passed through another screen. Oversize will be recycled to the same grinder.
Final material coming out from all the screens will be sent separately by gravity in to the Nauta mixer for the blending and to make a uniform lot. The products will be tested and packed.
The plant can be operated by 2 skill workers in a shift. The loading/unloading and the packing of the final product can be done on contract basis.
