Application of Decanter Centrifuges in Olive Oil Production

• Customization: Available
• After-sales Service: 24 Hours
• Warranty: 1 Year
• Model NO.: LWS
• Type: Centrifuge
• Separation Mode: Sedimentation Type
• Operating Type: Continuous Type
• Installation: Horizontal
• Centrifuge Type: Horizontal Spiral Centrifuge
• Pressure: Low Pressure
• Condition: New
• Motor: ABB
• Touch Screen: Siemens
• Inverter: ABB
• PLC: Siemens
• Transport Package: Wooden Case
• Specification: LW
• Trademark: SHENZHOU
• Origin: China
• HS Code: 8421192000
• Production Capacity: 200sets
• Package Size: 130.00cm * 90.00cm * 160.00cm
• Package Gross Weight: 1050.000kg

Product Description

I. Introduction

Olive oil, as a nutrient-rich and healthy edible oil, enjoys widespread popularity globally. Its production process encompasses several critical stages, among which solid-liquid separation is a vital step. Decanter centrifuges, with their characteristics such as high-efficiency separation performance and excellent adaptability, play an irreplaceable role in olive oil production. They can effectively separate olive oil from other impurities in the olive pulp, enhancing both the quality and production efficiency of olive oil.

 

A decanter centrifuge is mainly composed of components like a rotating drum, a screw conveyor, a differential, and a drive system. Once the equipment is started, the rotating drum and the screw conveyor, driven by the drive system, rotate at a high speed in the same direction with a certain differential speed. In olive oil production, the crushed and stirred olive pulp is conveyed through the feed pipe into the inner cylinder of the screw conveyor and then enters the rapidly rotating drum. Under the action of a strong centrifugal force, due to the different densities of the components in the olive pulp, solid impurities with higher density (such as olive skins and pulp residues) quickly settle on the inner wall of the drum, forming a solid-phase layer. Meanwhile, the olive oil and water with lower density are distributed inside the solid-phase layer, forming a liquid-phase layer. The screw conveyor continuously pushes the solid impurities settled on the inner wall of the drum towards the conical end of the drum. After further dehydration, these impurities are discharged out of the machine. The liquid phase is discharged through the overflow port of the drum, and after subsequent oil-water separation and other treatments, pure olive oil can be obtained.

III. Application of Decanter Centrifuges in Each Link of Olive Oil Production

(I) Initial Pressing Separation Stage

During the initial pressing of olive oil, after fresh-picked olive fruits are pre-treated through cleaning, crushing, and stirring, the resulting olive pulp contains a large amount of olive oil, water, and solid impurities. Decanter centrifuges can quickly and efficiently separate the solid impurities from the pulp, initially obtaining an olive oil mixture with a certain water content. Compared with traditional separation methods, decanter centrifuges have a faster separation speed and can process a large quantity of pulp in a short time, thus improving production efficiency. Moreover, due to their good separation effect, they can reduce the contamination of olive oil by solid impurities, ensuring the quality of virgin olive oil.

(II) Oil-Water Separation Stage

The olive oil mixture obtained from the initial pressing separation still contains a certain amount of water, which requires further oil-water separation. Decanter centrifuges can achieve effective separation of olive oil and water by adjusting the operating parameters of the equipment according to the density difference between them. In this process, decanter centrifuges can reduce the water content to a relatively low level, obtaining pure olive oil. Additionally, with high separation precision, they can avoid the loss of olive oil and increase the yield of olive oil.

(III) Refining Treatment Stage

During the refining process of olive oil, some fine impurities and precipitates may be generated. Decanter centrifuges can be used to remove these impurities, further enhancing the purity and transparency of olive oil. By conducting re-separation treatment on the refined olive oil, its quality can reach a higher standard to meet the market demand for high-quality olive oil.

IV. Application Advantages of Decanter Centrifuges in Olive Oil Production

(I) High-Efficiency Production

Decanter centrifuges have a high processing capacity and can handle a large amount of olive pulp and olive oil mixture in a short time. This enables olive oil production enterprises to produce more products within the same period, improving production efficiency and reducing production costs. For example, after some large-scale olive oil production plants adopted decanter centrifuges, their daily output increased by more than 30%.

(II) High-Quality Separation Effect

Decanter centrifuges can achieve high-precision solid-liquid separation and oil-water separation, effectively removing solid impurities and water from the olive pulp and ensuring the purity and quality of olive oil. The separated olive oil has a clear color, pure taste, and better retention of nutrients, enhancing the product's market competitiveness.

(III) High Degree of Automation

Modern decanter centrifuges are equipped with advanced automatic control systems, which can realize operations such as automatic feeding, discharging, and cleaning. Operators only need to set the parameters on the console, and the equipment can operate automatically, reducing manual intervention and labor intensity. At the same time, the automatic control system can also monitor the equipment's operating status in real-time, detect and handle faults promptly, ensuring the continuity and stability of production.

(IV) Strong Adaptability

Decanter centrifuges can achieve the best separation effect by adjusting the equipment's operating parameters (such as drum rotation speed, differential speed, and feed rate) according to different olive varieties, production processes, and product requirements. Whether it is small-scale family workshop-style production or large-scale industrial production, decanter centrifuges can adapt to different production scales and needs.

V. Application Case Analysis

(I) A Small Olive Oil Production Enterprise

A small olive oil production enterprise originally used traditional gravity sedimentation and filtration methods for separation, resulting in low production efficiency and unstable product quality. Later, a decanter centrifuge was introduced, and the production situation improved significantly. In the initial pressing separation stage, the decanter centrifuge could quickly separate the solid impurities from the olive pulp, reducing the processing time from several hours to dozens of minutes. In the oil-water separation stage, the water content of the separated olive oil decreased from the original 3% to below 1%, significantly improving the product quality. Meanwhile, due to the increase in production efficiency, the enterprise's production cost decreased by about 20%, enhancing its market competitiveness.

(II) A Large Olive Oil Production Base

A large olive oil production base has multiple production lines and uses decanter centrifuges for large-scale production. Through the reasonable configuration of the number and models of decanter centrifuges and the optimization of production process parameters, the base has achieved efficient and stable production. During the peak production season, it can process thousands of tons of olive fruits every day and produce a large quantity of high-quality olive oil. Moreover, the automatic operation of decanter centrifuges reduces labor costs and improves the safety and reliability of production. After years of practical application, the olive oil products of this base have gained a good reputation in the market, and the sales volume has been increasing year by year.

VI. Conclusion

Decanter centrifuges have remarkable advantages and broad application prospects in olive oil production. Through high-efficiency solid-liquid separation and oil-water separation technologies, they can improve the production efficiency and quality of olive oil and reduce production costs. With the continuous expansion of the olive oil market and the increasing requirements of consumers for product quality, the application of decanter centrifuges in olive oil production will become more and more extensive. At the same time, with the continuous advancement of technology, the performance of decanter centrifuges will also be continuously optimized and enhanced, providing stronger support for the development of the olive oil industry.

 

 

3. High Degree of Automation

Decanter centrifuges are equipped with advanced automatic control systems, which can realize operations such as automatic feeding, discharging, and cleaning. Operators only need to set the parameters on the console, and the equipment will run automatically according to the program. Meanwhile, the equipment also has a fault monitoring and alarm function. Once an abnormal situation occurs, such as overload or over - temperature, the system will immediately issue an alarm and stop the machine automatically to ensure the safe operation of the equipment, reducing manual intervention and labor intensity.

4. Low Operating Costs

In terms of energy consumption, decanter centrifuges have certain advantages over other waste oil treatment equipment. Their high - efficiency separation performance results in relatively low energy consumption per unit of treatment volume. Moreover, the key components of the equipment, such as the screw conveyor and the drum, are made of wear - resistant materials, which have a long service life, reducing the frequency of maintenance and component replacement and lowering the maintenance cost. In addition, decanter centrifuges occupy a small area, which can save a large amount of site space and reduce the infrastructure investment cost.

IV. Application Cases

1. Oil Extraction Field

During the extraction process of a large - scale oilfield, the produced crude oil contains a large amount of sand, water, and other impurities, resulting in a large amount of waste oil. Before using the decanter centrifuge, the waste oil treatment effect was poor, which not only caused a waste of crude oil resources but also polluted the environment. After introducing the decanter centrifuge, the waste oil undergoes centrifugal separation, and the solid - phase impurities are effectively separated. The purified crude oil can re - enter the production process. After testing, the water content of the separated crude oil decreased from the original 15% to below 5%, and the content of solid - phase impurities also decreased significantly, greatly improving the quality and recovery rate of the crude oil.

2. Refining Industry

The waste oil produced during the production process of a certain refinery contains various complex components, including heavy oil, light oil, catalyst particles, and other impurities. The refinery uses a decanter centrifuge to treat the waste oil. First, the waste oil is pre - treated with a demulsifier to break the oil - water emulsion state, and then it enters the decanter centrifuge for separation. After treatment, the solid - phase impurities in the waste oil are separated, and the recovered heavy oil and light oil can be reused in production, realizing the recycling of resources. At the same time, the treated sewage meets the discharge standard, reducing environmental pollution.

V. Conclusion

Decanter centrifuges have significant advantages and broad application prospects in the field of waste oil treatment. Through efficient solid - liquid separation technology, they can effectively treat waste oil with various complex components, achieving the purification of waste oil and the recycling of resources. With the increasing environmental protection requirements and continuous technological progress, the application of decanter centrifuges in waste oil treatment will become more and more widespread, and their performance will also be continuously optimized and improved, providing strong support for the sustainable development of industries such as oil and chemical engineering.

Technical Parameters:

 

Model	Diameter(mm)	Lenght(mm)	Max speed	L/D ratio	G-force	Capacity(m3/h)	Main motor power(Kw)	Weight(kg)	Dimension (mm)
LW250*1000	250	1000	5000	4	2722	0.5-5	7.5	950	2120*1250*680
LW300*900	300	900	4200	3	2964	1-6	11	1160	2150*1300*900
LW300*1200	300	1200	4000	4	2784	2-6	11	1350	2450*1300*900
LW355*1160	355	1160	3600	3.3	2576	2-8	15	1400	2470*1350*830
LW355*1460	355	1460	3600	4	2576	2-10	15	1800	2750*1350*830
LW400*1200	400	1200	3200	3	2294	3-12	18.5	1800	2730*1600*1080
LW400*1600	400	1600	3000	4	2016	3-15	22	2000	3130*1600*1080
LW450*1800	450	1800	2800	4	1976	4-25	37	2500	3320*1700*1130
LW500*2000	500	2000	2800	4	1750	5-35	45	4000	3520*1800*1170
LW530*1855	530	1855	2600	3.5	2006	5-38	55	4680	3885*1350*1600
LW530*2120	530	2120	2400	4	1709	5-40	55	4800	4150*1350*1600
LW550*2000	550	2000	2800	4	2414	6-40	55	5700	4570*1380*1600
LW650*1950	650	1950	2200	3	1761	6-45	75	5000	4840*1510*1720
LW650*2600	650	2600	2000	4	1456	6-65	90	6000	5490*1510*1720
LW720*2160	720	2160	2000	3	1612	7-80	120	6000	5200*1600*1800
LW720*2880	720	2880	2000	4	1306	7-90	120	8000	3100*1600*1800
LW800*2400	800	2400	1800	3	1451	20-100	150	12000	5820*2000*1300
LW800*3200	800	3200	1800	4	1451	20-120	150	1300	7100*2000*1300