New peanut oil press process and instructions
New peanut oil press process and instructions
1. Cleaning and drying of peanuts: peanuts entering the oil plant inevitably contain some impurities. If the stalks, leaves, soil, grass seeds and other debris in peanuts are not removed, they will not only affect the quality of oil and oil cake, but also adsorb part of oil, reducing the oil yield of peanuts. If there are sand, metal, twine and other sundries in the peanuts, it will cause mechanical wear and tear, induce production accidents and affect the process effect. Therefore, in order to ensure the smooth progress of production, it is necessary to remove impurities as far as possible. For individual peanuts with high water content, drying treatment is also very necessary in order to facilitate shucking. There are many ways to clean up, and different methods can be used according to the situation of impurities. If the impurities are light, such as grass, stems and leaves, you can use the method of wind selection, with air to blow away the impurities. If the impurity particles are small, the impurity can be removed through selection. For some impurities similar in size and relative density to peanuts, if they belong to soil blocks, they can be crushed by friction in the mud machine and then removed by screening method. If it is an iron impurity, it can be separated by electromagnet or permanent magnet.
Two, shelling: the purpose of shelling peanuts before oil pressing is to reduce the adsorption of oil on the shell, improve the oil yield, can improve the processing capacity of peanut oil pressing machine, reduce the wear of oil pressing equipment; It is good for rolling billet and improving the quality of gross oil. It can improve the quality of cake and be beneficial to comprehensive utilization.
Heat treatment (steaming and frying) : Heat treatment is one of the most important processes in the process of oil extraction. Heat treatment includes the wetting and heating of green billet, which is called steamed billet or fried billet in production, and the billet after steamed and fried is called cooked billet. Green billet press after heat treatment is called hot press, not heat treatment is called cold press. Peanut is mainly hot pressed, and the effect of heat treatment has a direct influence on the smooth progress of the whole oil-making process, the level of oil yield and the quality of oil products and cake.
Four, the preparation of the oil press before starting
1. Fill the gear box with 10kg of oil before starting.
2. Tighten each screw and nut, and check whether the above parts are loose and damaged. Fill with lube and turn to
The belt pulley is flexible, carefully check whether there is no impact between the parts.
3, before starting, first adjust the press screw and the gap between the ring. The method is to press the screw forward to die out of the ring, however
Then go back two to four laps.
4. Some impurities in the oil, such as soil clods and stones, need to be removed to avoid wearing the machine.
5. After the above check and adjustment is completed, start the machine and idling for 5 minutes to see if there is any abnormal occurrence such as impact and death
Like, when you make sure that the machine is running properly before feeding.
6, can be dry cake with appropriate water about 6-8, mix all after feeding into the hopper press chamber, the press chamber polishing, start feeding, dry cake should be slow, not too fierce, after normal discharge, and then appropriate to increase the amount of feeding, repeated use of the cake water gradually reduced, at this time appropriate to add water. If the cake feed is too fierce, too dry will make the press chamber pressure surge, cause the press chamber plugging, resulting in machine accidents.
7, the temperature of the press chamber is appropriate, there will be good pressing effect, so before the formal press should try to improve the temperature of the press chamber. The method can be used to fry hot material embryo, can also be used to heat water mixed dry cake, slow feed, repeated grinding, until the temperature rises, until the outer surface is hot, and then normal press.
Five, press:
Screw oil press is a small oil press widely used in rural small oil plants. It has simple structure, high pressure, continuous processing of materials, low labor intensity, and can press a variety of oil. As a result of the spiral press the circular press bar is serrated curve and cone, the material is pressed, pressed by the push and squeeze squeeze screw and squeeze cage inner wall space volume is constantly changing, in the rear of the press cage due to the arrangement of circular press bar, press cage inner wall is serrated, billet here alternately pressed and relaxed, billet structure is constantly adjusted, evenly turn, So that the unpressed oil or less pressed oil billets have more opportunities to be fully pressed. So it has a better press effect.