Hildebrand Extraction Equipment

Hildebrand extractor is a type of solid-liquid extraction equipment used for oil production. The basic working principle is as follows: the flaked or expanded oilseeds enter the extractor, and form a certain height of material layer. At this point, solvent(No. 6 light gasoline) is sprayed onto the oilseeds through the spray pipes, and and reaches a certain liquid level on the surface of material layers. Meanwhile, the chain and scraper driven by the transmission mechanism slowly and uniformly push the oilseeds forward. As the oilseeds are repeatedly sprayed and immersed with solvent(mixed oil), the oil inside the oilseeds is slowly dissolved out and dissolved in the solvent (commonly referred to as mixed oil). The mixed oil flows through the grating plates into the oil collecting tank and is then pumped into the temporary storage tank by the mixed oil pump. 

It is then transported to the evaporation and stripping section. The mixed oil with a lower density continues to recycle and spay. After nearly one hour of extraction, the oil in the oilseeds is fully extracted. The meal residue after extraction is pushed out of the extractor by the chain scraper and then conveyed into the steaming and de-solventing machine for solvent recovery.

Application range:

This equipment is suitable for various raw materials extraction, including one time extraction of soybean embryo and rice bran. It is also suitable for extraction of pre-pressed cakes of cottonseed, rapeseed, sesame, tea seed and tung seed, etc.

Advantages of hildebrand extractors:

-the material is divided into several independent units on the material layer, effectively preventing the flow of mixed oil between the layers and ensureing the concentration gradient between the spraying sections.

-each material grid forms an immersion zone so as to reach a better immersion effect.

-the chain box is supported by tracks and does not contact with the screen surface so as to extend the screen life.

-adopts international popular hydraulic motor dual-axis drive to make the force balanced, operation reliable, and maintenance cost low.

-it is more suitable for materials with high oil content and high powder content, and the extraction effect of common oilseeds is better.

Economic and Technical Indicator of Hildebrand Extractors(500T/D as an example):

- Steam Consumption: ≤280kg/t material (soybean)

- Electric Consumption: Installed capacity of 320KW

- Solvent Consumption: ≤4kg/t material (No. 6 solvent)

- Residual Oil in Meal: ≤1.0%

- Moisture in Meal: 12-13% (adjustable)

- Solvent Content in Meal: ≤500ppm

- Urea Enzyme Activity: 0.05-0.25 (soybean meal)

- Crude Oil Extracted

  - Total Volatile Matter: ≤0.30%

  - Residual Solvent: ≤300ppm

  - Mechanical Impurities: ≤0.20%