Soybean oil press

The better quality soybean oil should be lighter in color, light yellow, clear and transparent and there is no sediment, no beany, high-quality soybean oil with a temperature below zero degrees Celsius will Grease crystals precipitate out.

Ⅰ. Production process of soybean oil pressing equipment:

Soybeans→cleaning→crushing→steaming and frying→squeezing→filtering→crude oil→going to the refining workshop

1. Soybean oil complete equipment developed by Zhongxing Grain and Oil Machinery, mainly hot pressing soybeans;

2. Using cleaning, crushing, steaming and pressing technology, the pressed oil has a light color, low acid value and high nutritional value.

3. The benzopyrene index that customers are more concerned about is solved in the squeezing process, and the nutrients are fully maintained.

4. The oil press adopts a screw press, the output of this machine can be adjusted, the residual oil is low, and the production efficiency is high.

Description of main equipment:

Ⅱ. Refining process:

1. Brief description:

This workshop adopts the intermittent refining production process. According to the different types and quality of crude oil, the process parameters can be adjusted and different refining methods can be selected to produce first, second and third grade edible oil; the process equipment we provide has the following advantages:

Flexible and convenient adjustment, even if the quality of raw materials changes slightly, it can still be produced normally;

Maximum use of heat, significant energy saving effect;

The fully enclosed production process avoids the oxidation of grease and ensures the high quality and stability of the product;

The appearance of the equipment is clean and beautiful, the equipment is guaranteed for a long time, and the life-long after-sales service;

2. Description of refining process

(1) Process diagram

Crude oil→alkali refining→degumming→decolorization→deodorization→cooling→deodorized oil→dewaxing workshop

(2) Process flow description

① Alkali refining operation: adjust the oil temperature to about 60℃, then add 20-30Be lye (1kg caustic soda + 5kg water lye) within 5-10min, and stir for 5-10min under the condition of 60r/min, Observe the formation and separation of soap particles after the reaction and start to slowly heat up, change to slow stirring, and increase by about 1°C every minute. When the temperature reaches 65°C, the oil soap separates obviously, stop stirring and start to settle the soap feet. Generally, it is necessary Soap feet are released after 4-6 hours.

②Washing operation: After the soapstock is released, the oil is further heated to 75°C, and then hot water greater than 5% of the oil weight is added for washing. The water temperature should be 5-10°C higher than the oil temperature, and the water temperature should be 5-10°C higher than the oil temperature. It is easy to emulsify when the water temperature is too low; After adding water, continue to stir for 5 minutes, and then settle for 3-4 hours, release soapy water, and wash repeatedly 1-2 times, depending on the quality of the clear oil.

③ Decolorization operation: turn on the vacuum pump to make the vacuum ≧700mmHg; first suck the washed alkali refining oil into the decolorization tank, turn on the stirring and increase the temperature under the vacuum state, and continue to stir for 10 minutes after the temperature reaches 100℃ to reduce the water content in the oil to 0.1% Below, inhale a small amount of decolorizing agent (white clay or activated carbon), the amount of addition depends on the oil product, generally 2%-4% of the oil amount, after stirring for 20 minutes, the temperature is cooled to about 90°C, the vacuum is broken, and the decolorization pump is turned on to filter The machine separates oil and soil to obtain decolorized oil.

④ Deodorization operation: the decolorized oil is sucked into the deodorization tank by a vacuum. When the vacuum degree reaches 755mmHg and the temperature is above 150℃, the bottom is opened and the steam is directly distilled and deodorized, and the timing is started;

a、 deodorization time: 2-3h,

b、 Deodorization temperature: 220℃-240℃,

c、 deodorization vacuum degree: 755mmHg or more,

d、 The whole process must be directly steam distilled.

Description of main equipment：

Ⅲ. Dewaxing process

1. Brief description:

In the processed soybean oil fat, the wax inherent in soybean oil fat can be separated from the fat through the dewaxing process, so as to enhance the nutritional value of the fat and improve the taste and quality of the fat.

The equipment characteristics of this workshop:

The operation is flexible and convenient, and the labor intensity is extremely low;

The production and production environment are clean and hygienic in a fully enclosed state,

All clean tap water is recycled, no sewage is generated or discharged, and it meets environmental protection standards;

2. Description of dewaxing process

deodorized oil → pre-cooling → crystallization and crystal growth → filtration and separation → refined oil

Main equipment description：

Professional Advice

Please kindly inform us your required daily capacity, treated quantity, raw material, covering space and related data,so that we can make flow chart production line for you as your requirement. zhongxing machinery will stand at your point to suggest low cost and suitable production line for you. Sincerely want to cooperate with you.