Industry News

What is the process of palm kernel oil extraction?

2025-06-11

Palm kernel oil, as one of the world’s important vegetable fats and oils, its extraction process combines physical machinery and chemical refining technology, forming a complete set of industrialized processes. This article is based on modern palm kernel oil production practices, systematic combing of its core process links and technical points. First, raw material pretreatment: from kernel to pure kernel The extraction of palm kernel oil begins with the palm kernel, which is a by-product of palm fruit pressing. The link through the multi-stage separation equipment to achieve complete separation of fiber and kernel: Fiber-Kernel Separation: Vibrating screen and airflow sorting technology are used to separate the fiber material from the palm kernel after pressing. The fiber material can be used as biomass fuel after drying, while the kernel material enters the grading system. Kernel grading: The kernels are graded according to diameter (usually divided into large kernels ≥15mm and small kernels <15mm) using tumbler screen or vibrating screen to ensure the efficiency of subsequent shelling. Separation of kernels and shells: A toothed roller shelling machine is used to separate kernels and shells through mechanical extrusion and shear force. The separated kernel should be further purified by air-selecting column to remove the residual shell debris. Second, kernel processing: the synergistic effect of crushing and stir-frying Pure kernel needs to be physically modified to improve the oil yield: Crushing process: adopt roller crusher to crush kernel to particle size 2-4mm, increase surface area and oil mobility. Steam frying and tempering: High temperature and high humidity treatment (temperature 110-120℃, humidity 8-10%) in the roller fryer to soften the kernel and adjust the moisture content to 6-8% to create the best conditions for pressing. Third, oil extraction by pressing: the core technology of physical extrusion Modern palm kernel oil pressing adopts double screw…

Analysis of palm oil refining equipment and refining process

2025-06-11

Palm oil, as one of the largest edible oils and fats in the world, its refining process directly determines the quality and market value of the product. This article will analyze the core technology of palm oil refining from two dimensions of equipment configuration and process flow. I. Refining equipment system 1. Core equipment matrix Modern palm oil refining production line consists of six core equipment: Heat exchanger: to realize graded utilization of heat energy and reduce energy consumption Centrifuge: adopting double-stage centrifugal separation technology, the phospholipid removal rate can be up to 99.99% Decolorizing tower: equipped with steam injection vacuum system, the vacuum degree is stable at 6-8mmHg Deodorizing tower: adopting packing type vapor extraction tower, the loss rate of heat-sensitive substances is <0.3% Filtration system: adopting plate and frame filtration + blade filtration double-stage filtration, the oil content of filter residue is <5% Automation control system: integrated PLC and SCADA system, realizing real-time monitoring of process parameters 2. Equipment technical parameters Typical equipment parameters of 10 tons/day refining line: Processing capacity: 10-12 tons/24 hours Steam consumption: ≤0.8 tons/ton of oil Electricity consumption: ≤45kWh/ton of oil Footprint: about 200 square meters Staffing: 3-4 people/shift 2. Refining process flow 1. Pre-treatment stage Gross oil filtration: vibrating screen + plate and frame filtration combination, to remove the particle size of >50μm impurities Degumming process: phosphoric acid hydration method, the phosphoric acid addition of 0.05% -0.1%, the reaction temperature 0.05% -0.1%, the reaction temperature 0.05% -0.1%. 0.1%, reaction temperature 85-90℃ Centrifugal separation: centrifuge speed 6000-7000rpm, separation factor ≥8000 2. Neutralization and deacidification Chemical neutralization: NaOH addition = theoretical amount × 1.05-1.10, reaction temperature 70-75℃ Physical deacidification: Vacuum ≤ 5mmHg, vaporization temperature 240-250℃, residence time 60-90min Wastewater treatment: Soap oil filtration: using vibrating screen + frame filtration combination to remove impurities with diameter…

Rapeseed Oil Refining Process

2025-06-06

As one of the important edible oil varieties in the world, the refining process of rapeseed oil directly affects the stability, flavor and nutritional value of the oil. Modern rapeseed oil refining process systematically removes impurities through physical and chemical means, and realizes the quality upgrade from crude oil to finished oil. The following process flow, key parameters and technical points are analyzed. I. Pre-treatment stage: laying the foundation for refining Gross oil pretreatment Rapeseed oil should be settled to remove surface foam, adjust the oil temperature to 25-35℃ and keep the oil surface smooth. At this stage, it is necessary to test the acid value of the oil, phospholipid content and other indicators, for example, if the acid value exceeds 3mg KOH/g, it is necessary to increase the intensity of alkaline refining. Lye preparation According to the characteristics of the oil, make 20-30°Bé lye at the ratio of 1kg caustic soda + 5kg water, and make sure the lye is completely dissolved by circulating pump. The concentration of lye should be dynamically adjusted according to the free fatty acid content, for example, for every 1mg KOH/g increase in acid price, the concentration of lye should be increased by 0.5°Bé. Second, the core refining process: multi-dimensional quality improvement 1. Lye refining and deacidification: the key link of chemical neutralization Operating parameters: after the oil temperature rises to 60 ℃, add lye in 5-10 minutes at an even speed, stirring speed from 20r/min to 60r/min, neutralization time control in 1 hour. Soap foot separation: the temperature rises to 65 ℃ to stop stirring, standing 4-6 hours after the discharge of soap foot. Need to control the oil content of the soap foot is less than 3%, otherwise it needs to be centrifuged through the second recovery. 2. Soap washing: fine control…

Soybean oil press manufacturer

2025-06-05

Soybean oil press as the core equipment of the grain and oil processing industry, its technology iteration and the evolution of the market pattern profoundly affects the ecology of the upstream and downstream industry chain. At present, China’s soybean oil press production field has formed in Henan, Shandong, Hebei as the core of the industrial cluster, emerging a number of both technical strength and market reputation of the leading enterprises. In this paper, we will analyze the core competitiveness of soybean oil press manufacturers and industry development trend from the technical breakthroughs, market layout, user needs in three dimensions. First, technological innovation: from the traditional process to intelligent upgrade 1. Energy efficient technology breakthroughs Henan Xuyang Cereals and Oil Machinery Co., Ltd. as a representative of the enterprise, through the modular design, PLC control system and remote monitoring platform, to achieve the whole process automation of soybean oil refining equipment. The refining production line with a daily output of 200 tons reduces energy consumption by 30%, wastewater discharge by 50% and oil purity by 99.8% compared with traditional equipment. This technological breakthrough not only meets the large-scale needs of large-scale oil and grease enterprises, but also provides an economical solution for small and medium-sized workshops. Shandong Jinan Huade Machinery, on the other hand, through the multi-stage propulsion and progressive pressurization technology, makes the pressure of the press chamber increase rapidly, and cooperates with the infrared temperature control system to realize the one-time fission and separation of the oil material. Its 160-type oil press can achieve a processing capacity of 0.6 tons of soybeans per hour, with a 24-hour capacity of 14.4 tons, making it the first choice of small and medium-sized oil mills for its high oil yield and stability. 2. Differentiated competition of cold pressing process Under the trend…

How much is a set of rapeseed oil press machine?

2025-06-05

As a key equipment in the field of edible oil processing, the price of rapeseed oil press presents a significant span due to the function, capacity, material and brand difference. This article is based on 2025 market data, from household small equipment to commercial large production line, systematic combing of rapeseed oil press price system, to provide consumers with reference for purchase. First, small home rapeseed oil press: $1,000 entry-level choicesHome rapeseed oil press to operate convenient, compact size as the core selling point, the price range is concentrated in the 500 yuan to 3,000 yuan. Such equipment is mostly made of stainless steel, support for hot and cold double pressing function, suitable for daily use at home.Basic model priceThe price of entry-level home oil presses is generally less than 1,000 yuan. For example, a brand of small stainless steel oil press in Longgang District, Shenzhen City is priced at RMB 522.5, supporting the pressing of sesame, peanuts, soybeans and other multi-oilseeds; a brand of micro oil press in Guangzhou City is priced at RMB 866.1, focusing on the processing of niche oilseeds such as tea seeds and walnuts kernels. These products usually use a single-barrel screw structure, with an oil yield of about 30%-35%, suitable for occasional use in the home.Middle and High-end ProductsHome oil presses priced at 1,000 yuan to 3,000 yuan have more comprehensive functions. For example, Jingdong platform hot Westinghouse WOP-KP0202 model priced at about 2,000 yuan, equipped with intelligent temperature control system, support for hot and cold double pressing, user feedback 500 grams of peanuts can be squeezed out of 220 grams of oil, the oil yield rate of 44%; eighteen oil workshop ZYJ-420 model priced at about 1,500 yuan, 304 stainless steel, support for peanuts, sesame seeds, flaxseed and other oilseed processing, users evaluate…

What is the working principle of small screw oil press equipment？

2025-06-03

What is the working principle of small screw oil press equipment? Small screw oil press equipment has penetrated into more and more family life, to bring convenience to people’s life. So how does the small screw oil press equipment extract oil? How can we reduce the residual oil rate? This may be a lot of friends concerned about the problem, here we come together to understand. First of all, the advantage of the screw oil press is that it can squeeze the oil material once, and the residual oil rate is low. Screw oil press in the oil extraction, is through the screw to the internal delivery of oil materials, and is a row of rows of forward delivery, because this can ensure that the oil material squeezed clean, the reason is that a row of rows of delivery, the accumulation of thin thickness of the oil material, we can imagine, is the thickness of the accumulation of thin squeezing of the clean or the thickness of the accumulation of thick squeezing of the clean? This question is very obvious, of course, the thin effect is good, so it can be realized once clean, and the screw oil press is through the direct extrusion of the press bar and the screw to produce pressure to extract edible oil, the thickness of the oil cake out of 2 mm, so it can be realized once clean. The above is the oil extraction method of screw oil press, and it is also the domestic oil press that can extract the oil materials once, with simple operation, high degree of automation, large workload and low residual oil rate. As a country with a population of 1.3 billion people, the development of the use of oil also has an important social significance, and Zhengzhou…

Which oil raw materials are not suitable for the cold pressing method of oil press machine?

2025-06-02

Which oil raw materials are not suitable for the cold pressing method of oil press machine? As we all know, the pressing method of oil press machine is generally divided into two ways: cold pressing and hot pressing. The choice of cold pressing method and hot pressing method is not arbitrary, need to choose according to some characteristics of the oil raw materials. The hot pressing method is generally applicable to more oil raw materials, but the cold pressing method is applicable to fewer raw materials. Below we will have a look at the cold pressing method of the oil press machine is not suitable for which oil raw materials. Which oil raw materials are not suitable for the cold pressing method of oil press machine? Soybean, high erucic acid rapeseed, cottonseed, peanuts, sesame, for example, soybean oil contains a very strong soy flavor, high erucic acid rapeseed oil in the pungent, cottonseed oil in the flour toxins and spoiled oil aflatoxins, etc., the oil press is only through the simple cold press can not be directly consumed, to be refined by the refining equipment after the refinery to remove its defects. The flavor of sesame oil and peanut oil, before pressing and through the steaming and stir-frying, pressing the hot press process can be obtained. The cold pressing method of oil press machine will have a great influence on the quality of cold pressed oil due to the different maturity of raw materials and the influence of harmful substances contained in the raw materials, so the raw materials for cold pressed oil should be carefully selected before pressing, and the raw materials have to be crushed before pressing, and sometimes it is necessary to carry out the second and third pressing and so on, in order to improve the…

New type screw oil press machine oil extraction operation is more simple

2025-06-02

The new screw oil press is easier to operate. With the improvement of people’s economic level and material standard of living, people from solving the original “food and clothing problem” to solve the “health problem”. For example, peanut cooking oil, we know that peanut oil has great benefits for the human body, but the market will also appear a variety of cooking oil containing additives, eating is not very reassuring. Zhengzhou Zhongrui Cereals and Oil Machinery Co., Ltd. research and development production of new automatic screw oil press, can be realized in the way of freshly squeezed oil, the operation is also very simple, low investment threshold, small and medium-sized enterprises to invest in the oil plant is a very good choice. The new screw oil press is easier to operate. The reason why the operation of the new screw oil press equipment developed by us is simple is that with the help of mechanical external force, heat is generated by the propelling pressure of the screw shaft, which overflows into edible oil depending on the adsorption force of the material embryo. The design principle of this equipment is very advanced so far, not only the oil yield is high, but also automatic dregs discharge, the operation is very convenient. The oil pressed by this screw oil press equipment can be divided into first-class and second-class edible oil according to the standard, and divided into small, medium and large scale. Take the peanut cooking oil as an example, the peanut oil produced by our screw oil press equipment will not add any additives, and the production and processing process is very transparent, and it is very safe to eat. In order to meet the market demand, we for our R & D team is also very important, and constantly sent…

How much oil does soybean oil press machine produce per hundred pounds?

2025-05-19

Soybean as one of the world’s highest yield of vegetable oilseeds, its oil extraction efficiency directly affects the economic benefits of the oil processing industry. According to the industry data and equipment testing results, soybean oil extraction machine per 100 pounds of soybean oil is usually between 15-20 pounds, but the actual output by the quality of raw materials, process parameters and equipment performance and other factors. The following analysis from the principle of technology, factors and optimization of the three dimensions of the program. First, the principle of soybean oil extraction technology and oil yield rangeSoybean oil extraction is mainly through mechanical pressing or solvent leaching two ways to achieve, of which the screw oil press because of easy operation, low cost has become the mainstream equipment. The core principle is to destroy the cell walls of soybeans and squeeze out the oil through the pressure generated by the rotating screw shaft. According to the difference in equipment type and process, there are significant fluctuations in the amount of oil produced per hundred pounds of soybeans:Conventional oil yield: between 15-17 pounds for ordinary screw oil presses, and up to 18-20 pounds for some high-end equipment.Extreme cases: laboratory conditions, through the optimization of pretreatment process, the oil yield can exceed 22 pounds, but need to strictly control the temperature, moisture and pressure parameters.Second, the core factors affecting the oil yieldRaw material qualityDifference in oil content: soybean varieties determine the oil content, such as genetically modified soybean oil content is generally higher than traditional varieties.Impurity content: dirt, gravel and other impurities will reduce the oil yield, need to be cleaned through the sieve, stone machine and other equipment pretreatment.Moisture control: the moisture content of soybeans should be strictly controlled at 8%-12%, too high will easily lead to clogging of the press…