Oil Cake Extraction Equipment:

The stainless steel fixed grid plate extractor is one of the modern extraction equipment. Compared to the traditional false bottom flat rotary extractor, it retains the advantages of small power consumption, reliable equipment operation, long service life, convenient maintenance, and good extraction effect, and further improves production capacity, simplifies structure, reduces operating faults, and enhances extraction effect.

Main Features:

1. It is the most simplified structure among similar extractors.

2. The fixed grid plate replaces the false bottom, reducing the number of moving parts and thus reducing faults, improving the safe operation rate, and ensuring reliable operation.

3. It has a "self-cleaning" effect and does not require shutdown for cleaning the grid plate.

4. It can increase the extraction time of the material, reducing the residual oil rate in the meal.

5. It can increase the loading factor and improve the output.

Process Flow:

The pretreatment material is conveyed by a scraper conveyor into the extraction workshop and falls into the flat rotary extractor through a sealed auger. It is then sprayed with solvent or mixed oil for extraction. After draining, the wet meal falls into the meal hopper and is conveyed through the scraper conveyor and sealed auger into the steaming and de-solventing machine. After de-solventing and drying, it is transported to the finished meal warehouse. The concentrated mixed oil filtered by the extractor flows into the mixed oil tank, then enters a long tube evaporator to separate solvent steam. It then flows into a second long tube evaporator for further separation of solvent steam. After separation, it flows into the stripping tower to remove residual solvent. The crude oil is then transferred to the crude oil tank and sent to the refining workshop. The solvent steam from the long tube evaporator and the second long tube evaporator, the stripping tower, the flat rotary extractor, and the steaming and de-solventing machine is introduced into the condenser for condensation. The condensed liquid flows into the separator for water separation, and the separated solvent returns to the solvent circulation warehouse. The wastewater from the separator and the solvent circulation warehouse flows into the boiling water tank for boiling and then to the water seal pool. The free gases from the top of each device are collected into the condenser for condensation, and the non-condensed gas enters the absorption tower for further solvent capture.

Main Economic and Technical Indicators of Flat Rotary Extractor (300T Soybean Extraction as an Example):

- Production Capacity: 300 tons per day

- Residual Oil in Meal: ≤1% (Soybean)

- Solvent Consumption: ≤4 kg/ton of material (No. 6 solvent oil)

- Moisture and Volatiles in Crude Oil: ≤0.30%

- Electric Consumption: ≤23 KWh/ton of material

- Steam Consumption: ≤200 kg/ton of material (0.8MPa)

- Moisture in Finished Meal: ≤13% (adjustable)

- Residual Solvent in Finished Meal: ≤300 PPM (meeting explosion test standards)