From 20t/day to 600t/day, we use the Rotocel extractor. Below 20t/day, we use batch type extraction tank unit. 1, the pressed cake from the solvent extraction plant, such as the peanut cake, sunflower seed cake. In the recycling system, the cold paraffin will absorb the solvent gas and the final nonsolvent gas will be discharged through fire resistance valve.Paraffin absorbed the solvent gas can be also called rich oil, after heating by oil-oil heat exchanger and steam, the rich oil will enter into desorber for desorption, and into condenser after changing solvent into gas, the final cooled paraffin can be recycled.

Wet meals discharged from the bottom of extractor enter the top of DTDC and land on the predesolventizing trayers where they are heated by the indirect steam, thus, some solvent in meal is evaporated and meal temperature is risen; Predesolventized meals land on predesolventizing trayers where they use the second steam in desolventizing srayers to predesolventize solvent from meal, then, meals enter desolventizing layers in which direct steam is injected.

Stripping and analyzing share one condenser, the non-condensable gases from extractor and other condensers enter into the vent gas recovery system through the final condenser.

4,Condensation recovery process of solvent extraction plant. Miscella discharged from extractor and into miscella filter, then the leached meal in the miscella tank enter into evaporation system through 1st evaporation feed pump and finally drop-in DTDC out from wet meal drag conveyor. condensers: used to cooling the solvent gas separated from the wet meal and miscella for recycling.

This implies that the final product will be compromised and will not be as pure and excellent as the one that has been produced at low temperatures in a vacuumed environment. Low and high temperature of solvent gas both from 1st and 2nd evaporation enter into the condenser after its neutralization, which greatly reduces the load of condenser and improves the efficiency of condensing.

2, Evaporation process of solvent extraction plant. Extractor is equiped with a seperate condenser, 1st and 2nd evaporation share one condenser. The process of solvent extraction is taken through a chain of the following steps though they are not the same in all solvent extraction plants: You can follow any responses to this entry through the RSS 2.0 Both comments and pings are currently closed. Using the secondary steam desolventized from DTC desolventizer and produced by steam-jet pump to heat and evaporate micella in the first long-tube evaporator. (2). In order to produce high quality oil from oil bearing products, it is recommended that you consider using the solvent extraction plant . Solvent pumps: continuously spray solvent to the rotary-type extractor. Roary extractor: Spray and soak the pre-pressed cake with solvent so that oil fats can be dissolved in solvent(form miscella). Miscella condensity increase from 2% to more than 25%. Edible oil solvent extraction plant processing flow chart: The main systems of the solvent extraction plant. DTDC: used to separate the solvent from the wet meal. There are some solvent extraction plants that are able to extract high quality oil at extremely low temperatures under a vacuum. However, there are others that rely on the conventional mechanical pressing under high temperatures and pressure. The plants are often large enough to process perhaps 1000 to 6000 tons of seed per day, and it may be beneficial to be near a city large enough to provide mechanical services, operating staff, reliable electric power, housing for visiting technicians, etc.

2, the oil seeds that can be extracted directly, such as the soybean, the rice bran. Solvent Extraction is a process involving the injection of Hexane into the oil bearing cells of seeds resulting in a mix of oil and solvent, the so called miscella.

In the past people used to extract oil manually but this has changed over the years although in some countries they still use the traditional methods of oil extraction.

Most extraction systems are located near the farm fields which supply the oilseeds, or on ports or rail lines suitable to moving the very large volumes of oilseed and products. 3,Desolventizing process of solvent extraction plant.

The pre-pressed cake or flake, firstly enter into the sealed scraper blade to avoid the solvent gas escaping because of the section without screw blade in the sealed auger. Miscella tank 1st: pump the miscella (oil with solvent) in to the miscella 1st , and then add 10% saline water to it. In the past people used to extract oil manually but this has changed over the years although in some countries they still use the traditional methods of oil extraction. As per safety regulations the main solvent extraction plant is located 50 ft. away from the Preparatory, Conditioning and Bagging section as highly hazardous and inflammable Normal Hexane solvent is used (50 feet is present prescribed distance around).


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