Soybean oil storage bin

When soybean is used for cooking oil production, whether it is pressed or leached-out, the soybean should be cleaned, cleaned and tempered, etc.

1. Cleaning and removal of soybean impurities:

The impurity in soybean can be divided into organic impurity, inorganic impurity and oily impurity. Most of the impurities themselves do not contain oil, in the process of processing not only does not produce oil, but will absorb some amount of oil in the meal, containing soil, stem, leaf, shell and other impurities will make oil color deepened, odor and other undesirable phenomena; Hard objects such as stones and iron will wear down the equipment. Therefore, prior to processing to carry out effective cleaning and removal of impurities, reduce oil loss, improve oil yield, extend the service life of equipment. Cleaning mainly includes wind separation, magnetic separation and screening. Air separation. Using soybean and soybean husk, dust and small pod, shell ratio is different, under the action of the wind will light rain soybean weight of impurities out of the process is the wind. The equipment used in the production process will be the air separator.

2. Soybean conditioning:

Indirect steam heating and hot air convection drying ways of soybean to adjust the temperature and moisture, make through the regulation of temperature and moisture soybeans to appropriate plasticity, moisture and good heat penetration in soybean inside, so as to achieve the corresponding softening effect, make the soybean can satisfy the follow-up broken desquamate, rolling billet process requirement. The temperaturesing process commonly used in the industry takes about 50min for temperaturesing, the heating temperature of soybeans is 65-70℃, and the moisture content is 10.5-11.5%.

Screening. By using the difference of grain size between soybean and bean stalk, bean pod, rock, clay, crushed bean, etc., the impurities larger than or smaller than soybean particles are removed through the sieve hole with the aid of relative movement between soybean and sieve surface. Impurities larger or smaller than soybean particles are removed through the sieve. Soybean processing plant commonly used screening equipment is a plane rotary screen, vibrating screen, etc., no matter which screening equipment, it is necessary to choose the screen hole size and screen surface, in order to effectively clean impurities, for the initial cleaning phase of the screen hole diameter is generally 8.8-9.5mm. "Three pressing, seven stir-frying (steaming)" our company according to the characteristics of soybean research and development of soybean special tempering pot, so that the soybean to achieve high quality.