Preface

As an important part of the modern oil and fat industry, oil presses are widely used to extract edible oil from plant seeds. These devices mainly include hydraulic oil presses, screw oil presses and extraction oil presses. This article will introduce the working principles, advantages, characteristics, energy consumption and application scope of these three types of equipment in detail through the structure of problem-solution, to help you choose the most suitable oil press.

question

As the demand for high-quality vegetable oil continues to increase, the efficient processing of oil crops is particularly important in the oil and fat industry. However, since different types of oil presses vary in oil extraction efficiency, energy consumption and applicable scope, how to choose the most suitable oil press has become a practical problem.

solution

1. Hydraulic press

The hydraulic press mainly uses the hydraulic principle to inject high-pressure liquid into the oil pressure chamber, so that peanuts and other oil crops are squeezed out of the cells under the action of high-pressure liquid. It is simple to operate and has a high oil yield, but it is noisy and has poor adaptability to oil crops.

2. Screw hydraulic press

The screw oil press mainly uses the principle of screw extrusion. Through the extrusion effect of the rotating screw shaft and the inner wall of the press chamber, the oil crops are crushed under high temperature and high pressure, and the oil is squeezed out of the cells. The screw oil press can be operated continuously, with high efficiency and strong adaptability, but the oil output rate is relatively low.

3. Extraction oil press

The extraction oil press mainly uses the principle of solvent extraction of oil. Solvent is injected into the oil crops to make the oil and solvent fully mixed, and then the solvent is recovered through evaporation, separation and other processes to obtain oil. The extraction oil press has a high oil yield, but requires a large amount of solvent, has the highest energy consumption, and the residual solvent needs further treatment.

Comparison and selection

Oil yield

According to the working principles of different types of oil presses, hydraulic oil presses have the highest oil yield, which can reach more than 90%; screw oil presses are second, generally 60%-70%; and leaching oil presses have the lowest oil yield, usually 40%-50%. However, the oil yield of different oil crops also varies.

Energy consumption

Hydraulic presses have the lowest energy consumption because they work on the hydraulic principle; screw presses have medium energy consumption because they rely on the rotation of the screw shaft; extraction presses have the highest energy consumption because they require large and frequent use of solvents.

Scope of application

Hydraulic oil press is suitable for hard-shelled oil crops such as peanuts and sesame; spiral oil press is suitable for various soft-shelled and hard-shelled oil crops; and extraction oil press is suitable for various oil crops, but attention should be paid to the problem of solvent residue.

Summarize

Choosing the right oil press is essential to improving production efficiency and meeting market demand. Hydraulic oil presses are suitable for producers with high oil yield requirements, screw oil presses are suitable for companies that need continuous and efficient production, and leaching oil presses are suitable for production lines that need to process a variety of oil crops. I hope this article can help you make a wise choice to meet your specific needs.

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