Sunflower Seed Pretreatment:

The Process flow

Oil plant (sunflower seeds)→wind selection→screening→magnetic separation→cleaning of

↓ ↓ ↓ ↓ ↓ ↓ ↓ ↓ ↓ ↓ ↓ ↓↓ ↓

Light Miscellaneous Large Miscellaneous Heavy Miscellaneous Small Miscellaneous Iron Miscellaneous

side-by-side mud→rolling→sunflower seed flakes

1.Cleaning of oil material:

The impurities contained in oil are divided into three categories: organic impurities, inorganic impurities and oily impurities. Most of the impurities themselves do not contain oil. During the oil making process, not only does not produce oil, but a certain amount of oil is absorbed in the cake. The impurities contained in the cake, such as soil, plant stems and leaves, and leather shells, will deepen the color of the oil and produce odors and other adverse effects phenomenon; hard objects such as stones and iron will wear the equipment. Therefore, effective cleaning and removal of impurities before oil production can reduce oil loss, increase oil yield, and prolong equipment life. Cleaning mainly includes winnowing, screening, magnetic separation and side-by-side mud cleaning.

(1)Wind separation

According to the difference in specific gravity and aerodynamic properties between oil seeds and impurities, the impurities in the oil seeds are separated by wind force. Wind separation can be used to remove light impurities and dust in the oil seeds, and can also be used to remove heavy impurities such as metals and stones, and can also be used for the separation of kernels and shells after shelling the oil seeds.

Oil plants, namely sunflower seeds, are first air-selected to separate light impurities (such as dust, plant stems and leaves, etc.). Reasonable selection of the screen surface can separate large and small impurities from the oil seeds, and the impurities that are similar in shape to the oil seeds enter the magnetic separation equipment with the oil seeds. After magnetic separation, the metal impurities can be removed, and finally only the soil impurities is left. After passing through the equipment for removing side-by-side mud, these impurities are ground and then taken away by the wind, and the cleaned oil seeds can be sent to the rolling equipment for rolling.

(2)Screening

Use the difference in particle size between the oil seeds and impurities, with the help of the relative movement between the miscellaneous oil seeds and the sieve surface, and remove the impurities larger or smaller than the oil seeds material through the sieve holes.

Through the relative movement of the sieve and different selections of the sieve surface, large and small impurities in the oil seeds can be removed. Screening is a traditional cleaning process. This method is simple and easy to achieve good separation effect.

(3)Magnetic separation

Magnetic separation is a method of using magnets to remove metal impurities in oil. Although the content of metal impurities in oil seeds is not high, they are very harmful and can easily cause damage to equipment, especially some high-speed operating equipment, and may even cause serious equipment accidents and safety accidents, so they must be removed.

(4)Cleaning of side-by-side mud

The shape and size of side-by-side mud are similar or equal to that of oil seed, and the specific gravity is not significantly different from that of oil seed, which is called “side-by-side mud”. The content of side-by-side mud in sunflower seeds, soybeans, and sesame is relatively high.

The cleaning of the side-by-side mud is to use the different mechanical properties of the mud and oil seeds. First, grind or hit the oil seeds containing the side-by-side mud to crush the side-by-side mud, that is, grind the mud, and then screen or winnow the dust to remove it.

Billet Rolling

Preparation of oily raw body: The purpose of flaking is to destroy the cell tissue of oily material, increase the surface area of oily material, shorten the distance of oil outflow, which is beneficial to the extraction of oily oil and also helps to improve the effect of steaming and frying.

During billet rolling, external mechanical force can be used to destroy the cell tissue of the oil plant and the cell wall of some cells. Rolling makes the oil material change from granular to flake, reduces its thickness, increases the surface area, increases the contact surface between the billet and the solvent when the oil is extracted by solvent leaching, and shortens the diffusion distance of the oil, which is beneficial to increase the speed of leaching and depth.

Steam and Fry

Steaming and frying is one of the effective methods to increase the oil yield of sunflower seed, and it is also an important process in oil production. Raw sunflower seeds are heat-treated and sent to oil pressing equipment for pressing, which is called hot pressing, which can improve the oil yield. The quality of steaming and frying can have a certain impact on the oil yield of sunflower seed and other oils to a large extent.

Squeeze Out the Oil

The pressing efficiency of the oil press and the stability of the equipment are the key to the oil pressing process. The oil press produced by our factory has the characteristics of large output, low cake residue and good quality cake.

Main Equipment

No.	Equipment	Application	QTY (Set)	Specification	Picture
1	Impurity removing machine	The machine removes impurities in material : stones, soil, etc. by means of wind	1	Capacity: 1 t/h Size: 1550*900*2600mm Power: 3.5kw Voltage:380v 3phase 50hz Weight: 480kg Accessory equipment: bucket elevator
2	Bucket elevator	Conveyor is used to constantly convey the material  to impurity removing machine directly.	1	Capacity: 2t/h Height: 3m Power：0.75kw Grouped equipment: hopper
3	Storage bin	Temporary storage of materials as a transfer device connected to subsequent machine operations.	1	Capacity:1t Size:customized based on the actual situation Note:for the convenience of transportation, it is cut into sheets and needs to be welded by the customer
4	Sheller	Remove the shell of material to improve the oil yield.	1	Voltage: 380V Power: 3kw Size: 1100*800*1470mm Capacityt 500-700kg/h Grouped equipment: screener
5	Bucket elevator	Conveyor is used to constantly convey the material  to screening machine directly.	1	Capacity: 2t/h Height: 2.5m Power：0.75kw Grouped equipment: hopper
6	Screener	Separate material shells and kernels.	1	Capacity: 1t/h Voltage: 380v 50hz Power: 0.25kw*2 vibration motors Size: 1600*1050*1360mm Weight: 300kg
1	Screw Conveyor	Conveyor is used to constantly convey the material to roaster or oil press machine directly.	2	Capacity：2.1T/H Power： 1.5kw Material：Carbon steel Size: 2.56*0.35*0.67m Weight:150kg
2	Roaster	The roaster heats the material  to a certain extent to destroy the oil film on the surface, which is convenient for pressing and improving the oil yield.	1	Capacity: 500kg/h Heating power: 42kw Motor power: 2.2kw Size: 2500*1050*1450mm Weight: 350kg
3	Screw oil press	The machine is used for making oil by mechanical squeeze. With temperature control suitable for new customers.	1	Speed: 450-500 kg/h Capacity: 10-12 T/ 24hrs Power: 21.7 kw Size: 2100*1600*1380mm Weight: 1135 kg
4	Plate frame oil filter	The machine is used for removing the solid impurities in crude crude oil, such as oil residue and material residue.	1	Capacity: 190-250 kg/h Plate Quantity: 18 pcs Power: 1.5 kw-4P Size: 1520*570*640mm Weight: 550 kg

1.The production line equipment configuration plan is designed and customized according to the customer’s production quality requirements and the specific conditions of the workshop.

2.The equipment layout of the production line can be designed according to the layout of the customer’s actual factory, and the equipment layout diagram can be provided.

Ruian Every Machinery (MCRAYONE) is located in Zhejiang province, China. Our annual production capacity of oil press machines and related machines is around 10,000 sets. These machines have sold to all over the world, such as South Africa, Nigeria, America, India and so on. Thanks to our experience in the oil press industry (more than 40 years ), we know the demands and best-selling models of each market, so we can provide the most suitable machines to our customers.

We have an experienced engineer team, a professional Research and Design department, and a perfect Quality Control System. All the parts are made by our own factory and the quality can be guaranteed. In addition, we provide a quality warranty for one year.

Our business involves in small-sized oil pressing series, oil engineering designing, equipment manufacturing and installing, project contracting, technical service and so on. Moreover, we have important partnerships with many large Chinese companies, such as China Oil and Food Import and Export Corporation. We are their designated foreign trade exporter and their supplier for small oil presses.

Our goal is to establish a long-term relationships with our customers, based on providing quality machines at a reasonable cost and maximize the customer returns with comprehensive service.

In the course of our company’s decades of development, we have obtained multiple official certificates, such as :

 

• ISO-9001 international quality system certification
• CE certificate
• China’s AAA credit enterprises
• Certification for honoring contracts and keeping promises
• Certificate of Integrity management demonstration unit
• Certificate of Quality Service Integrity Unit
• Enterprise Credit Rating Certificate

 

Our company has grown into one of the leading oil press manufacturers in China, and our popularity has spread abroad. We welcoming all kinds of orders.