Oilseeds Cleaning Equipment Introduction
Oilseeds cleaning equipment is for removing impurities from oil seeds. In the process of harvest, transportation, and storage, oil seeds may mix with various impurities, such as foliage, hull, hemp rope, metal, stone, and dust. Generally speaking, the percentage of impurities in oil seed is 1%-6%, and the highest is 10%. so oilseed cleaner is an important machine for the oilseed pretreatment process.
The common oilseed cleaning equipment mainly includes sieve cleaning machine, winnowing machine, magnetic separator, special cleaning equipment for removing mud or stone of similar shape, size, and density with oilseeds,specific-gravity designer, etc.
Advantages of Oilseeds Cleaning Equipment
1. Reduce oil loss and increase oil yield rate
2. Improve the quality of oil, cake, and by-products
3. Improve the processing capacity of oil production equipment, reduce the wear of oil press machine and other follow-up oil production equipment, avoid accidents in production
4. Improve oilseeds pressing effect. The lower the impurities of oilseed, the better the oilseed extraction result.
5. Good for the working environment and reduces the dust at the workshop.
Methods of Removing Impurity in Oilseed
1. Make use of the different sizes of impurities and oilseeds to separate them.
2. Separate oil seeds and impurities by comparing the specific gravity between them.
3. Make use of the difference of oil seeds and impurities in kinetic properties to separate them.
4. Making use of the difference in the mechanical strength of oil seeds and impurities to separate them, like grinding, impact, water solubility
5. Magnetic separation. Make use of the difference between oil seeds and impurities in magnetic properties to separate them.
Mainly Oilseeds Cleaning Equipment
Oilseeds sieve cleaning machine
The screening separation mainly makes use of the different sizes of oilseeds and impurities. With the aid of the relative motion of the mixed oil seed and the sieve surface, impurities of bigger or smaller size than oilseeds are sieved out.
Oilseeds screening equipment for edible oil plants mainly includes slide sieves, vibrating screens, rotary flat sieves, and rotary screens. The vibrating screen is also called a flat screen, its screen surface can do the reciprocating movement. It can be used to clean up impurities in all kinds of oilseed. Featured with high cleaning efficiency and stable performance, the vibrating screen is widely used in the cooking oil mill plant.
Winnowing machine
Winnowing refers to a cleaning method for separating impurities in oilseeds by the wind. The main function of winnowing is to remove dust and light impurities. Sometimes it can also remove heavy impurities such as metal and stone. Winnowing can also be used for separating shell or peel from kernels. The winnowing machine is based on the principle of clean oilseeds.
Common winnowing machines are wind separators and air-suction flat screens.
1. The wind separator is specially designed for removing heavy impurities and light impurities in cotton seeds. The structure is simple. A wind separator is often installed on the conveyor auger. It is widely used in the cottonseed oil processing plant and has an excellent cleaning effect.
2. Air-suction flat screen is a combination of the screening separation and winnowing separation. In addition to using the flat screen to sieve out impurities, the air-suction flat screen can also use wind to remove light impurities and partially heavy impurities, like dust, hull, leaf debris, lint, etc.
Magnetic Separator
A magnetic separator is specially designed to remove magnetic metal impurities in oilseed. A permanent magnet or electromagnet is installed in the previous process of shelling machine, crusher, and flaking machine. Magnetic separation equipment includes magnetic steel, permanent magnetic cylinder, permanent magnetic roller, electromagnetic roller, and so on
Specific-gravity destoner
The specific-gravity destoner is applied to separate oil seeds and stone by the difference in density and suspension speed between them.
1. Suction-type specific gravity destoner
It is composed of a feeding mechanism, sieve body, vibration mechanism, suction mechanism, and frame.
2. Blower-type specific gravity destoner
Blower-type destoner has the same working principle as suction-type destoner. The main difference between suction-type and blower-type is that there is a fan at the bottom of the blower-type designer and don’t need to match a fan or wind net. But the blowing type will form the positive pressure in the machine chamber, resulting in the leakage of dust air, which is not good for the working environment.
Mixed mud & stone removal equipment
This machine is to remove mud and stone, which has a similar size or specific gravity to oilseeds. Such impurities, especially in rape seeds, can’t be removed efficiently by screening and winnowing machines.
Mixed mud & Stone removal equipment is specially designed for removing such impurities by making use of the difference in mechanical properties between such impurities and oilseeds; the structure of such impurities is loose, while the structure of oilseed is tough, so this mixed mud & stone removal machine is to crush the mud and stone by the grinding or hitting firstly and then remove them by screening.
At present, mixed mud & Stone removal equipment refers to iron roller rice mills, vertical round screens, vertical ferric sieves wheat scourers, rubber roller rice hullers, disc shelling machines, etc.
