Continuous Bleaching Plant

The design of a Glamptech continuous bleaching plant is based on the most advanced and easy to operate technology, which enables the reduction in consumption of bleaching chemicals, floor area and labour. It is also yields a final oil colour fully meeting the market standards.

Glamptech continuous bleaching plant is of versatile design and can be used for bleaching of conventional refined oils as well as pre-treated oils to be refined by the physical refining process. The bleaching operation of the oil is earned out completely out of contact with air. The slurry preparation and bleaching are under vacuum where as the filtration is carried out in pressure leaf filters. This eliminates any possibility of oxidation of oils during the bleaching process and ensures production of high quality bleached oil.

Glamptech continuous bleaching, incorporates, simple, yet efficient dosing system for dosing of bleaching chemicals. This system enables accurate dosing rates as per the process requirements and final colour demands. This system is based on dry dosing of bleaching chemicals and avoids completely, handling of slurry which causes operational as well as mechanical problems.

The bleaching plant is further equipped with pressure leaf filters complete with stainless steel woven wire mesh filter leaves. The filters are further provided with pneumatically operated butterfly valves. The incorporation of pressure leaf filters ensures lower oil losses in the spent earth. The plant is provided with comprehensive instrumentation and control system for efficient control of all significant process parameter ensuring high quality oil consistently.

Preparation of oil bearing material prior to its extraction is often under estimated by many processors. To achieve the best results in solvent extraction, the way in which the raw material is prepared is almost as important as extraction equipment's itself.

The feed stock should have a particle size small enough to enable the solvent to reach right up to the core, but at the same time not so small as to constitute 'fines'; should have fairly uniform particle size in order to 'pack well in the extractor and form a homogeneous bed and should possess good percolation characteristics. Too big pieces in the feed results in high residual oil content in meal as the solvent may not be able to penetrate to the core. And too small particles or fines will lead to poor percolation and channeling effect, thus resulting in poor performance of the plant.

Fully conscious of the importance of proper preparation, Glamptech have, after a long experience, developed a complete range of preparatory equipment suited for each type of raw material. Expelled cakes are adequately handled by cake breaker (702) and roller mill (703). In the former, two pairs of spiked rolls made in special alloy, running on heavy bearings, and with driving mechanism, break the large pieces of cakes in the smaller pieces. These pieces are further broken down into smaller pieces in the roller mill (703), in which special corrugated rolls are utilized. The resulting product is eminently suited for extraction.