Kumar Metal Industries Private Limited
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Refinery Plants

Established in 2007, we are a leading Exporter and Manufacturer of Refinery Plants such as Degumming & Neutralization, Water Washing, Bleaching Plant, De Waxing, Deodorizing, Pre Treatment & Bleaching and many more items from Thane, Maharashtra, India.


Pre Treatment & Bleaching Plant


Pre Treatment & Bleaching Plant
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Product Details:
Minimum Order Quantity1 Piece
Automatic GradeAutomatic
Automation GradeAutomatic
Design TypeStandard
Weight (kg)Standard

The feed oil is heated to 65-70°c in the economizer by outgoing deodorized oil followed by feed heater (during start up). Concentrated phosphoric acid (0. 05 - 0. 10%) is injected by the acid metering pump and intensively mixed with the oil in the acid mixer before entering the conditioning reactor. The oil is discharged into the slurry mixer above the bleacher. A valve dosing system proportions bleaching earth. The earth is introduced under the oil spray in the mixing chamber for improved mixing so that earth does not enter the bleaching vacuum system. The oil is heated up to bleaching temperature in the first compartment of bleacher. The earth adsorbs any residual gums as well as trace metals, color bodies and other polar impurities. The bleacher has multiple agitated compartments and operates under vacuum to ensure complete moisture and air removal. The dried oil and earth mixture is discharged by the bleacher discharge pump to one of the filters where the spent earth is removed. The filtered oil is collected in the filtrate receiver. The bleached oil pump sends the oil to the bleached oil tank via one of the alternating polish filters.


Filter management : The standard bleaching system is based on the use of two filters of which one is on line while the other is being cleaned and prepared for the next cycle. When a filter has reached its maximum capacity, as indicated by high feed pressure, it is taken off line for cleaning and replaced by the other filter.

The cleaning procedure begins by first pressurizing the filter with steam to expel residual oil into the recovered oil tank and dry the spent filter cake. The oil recovered from the filter cake is collected in the tank and can usually be recycled to the bleacher. After drying, a bottom discharge valve on the filter is opened and the leaves pneumatically vibrated so that the spent cake is dislodged and discharged via a hopper. The filter is then closed and readied for the next batch. Before going on line again it can be pre-coated with filter aid and/or bleaching earth in order to seal the filter leaves and minimize clogging. The adsorbents are mixed with bleached oil in the precoat/heel tank and applied to the leaves by circulation with the precoat pump. When not using filter aid or “off-line” pre-coat, the empty clean filter is filled and put on line while the other filter is still in operation. The filtrate from the clean filter is recycled back to the bleacher until the filter is pre-coated with bleaching earth and the oil is clear. After this the full flow is switched to the new filter.

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Akash Kumar (Director)
Kumar Metal Industries Private Limited
101, Kakad Bhavan, 30th Road, Opposite Gaiety Galaxy Cinema, Bandra West, Khar West
Thane - 400050, Maharashtra, India
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