Edible Oil Extraction Equipment Batch Tank Extractor for Small Oil Plant

The Edible Oil Extraction Equipment is a small scale batch type extractor, also called a tank extractor. Unlike the continuous rotocel and loop type machines, it works in batches, using a single tank that performs both extraction and meal desolventizing. Pre-pressed cake is immersed in fresh solvent or in miscella of various concentrations, so the equipment suits small plants with a capacity below 20 t/d that want a compact, low investment extraction section.

The tank body has a cone top and a cone bottom. The upper head carries the feed pipe, the miscella and solvent inlet pipe, the steam blowing pipe, the blow-down pipe, the overflow pipe, the pressure gauge and the explosion-proof valve nozzle. The lower cone carries the miscella outlet pipes and the steam stripping pipes. A two-speed drive with belt pulley and worm gear turns the spindle, and the two-layer single-arm stirring blades help remove the extracted meal during solvent stripping. A reversal meal discharge door at the bottom empties the tank.

• Batch operation: one tank performs both extraction and meal desolventizing for a compact layout.
• Immersion extraction: pre-pressed cake is immersed in fresh solvent or miscella of various concentrations.
• Two-speed drive: belt pulley and worm gear drive with a two-layer single-arm stirring apparatus.
• Complete process: cake loading, extraction, steam blowing, steam stripping and meal discharging in one unit.
• Low capacity fit: designed for small oil plants with a capacity below 20 t/d.
• Parallel tanks: several tanks can be combined to form a continuous extraction process.

The tank extractor is used by small oil plants extracting oil from the pre-pressed cake of rapeseed, sunflower seed, peanut, soybean, rice bran, cottonseed and camellia seed. It is also used to recover oil from spent bleaching clay. Several tanks can be operated in parallel, so a small plant can run a semi-continuous process without the investment of a large continuous extractor.

Each tank extractor is shipped with the tank, drive and stirring assembly protected, with all nozzles capped and the internal surfaces coated for corrosion protection. We provide a process description, a valve line-up guide and a start-up checklist, together with a twelve month warranty on the tank body, drive and discharge mechanism.