1. Why Making Rice Bran Oil?

- In the process of rice processing, the two most valuable materials are rice and rice bran. In recent years, due to the low profit margin in the process of rice processing, another valuable rice bran has attracted more and more attention of rice milling enterprises.

At present, the vast majority of rice bran oil is not used as oil resources, and a large number of rice bran oil is used as animal feed, causing great waste.

- Rice bran is a mixture of rice epidermis, embryo, rice bran and starch. For every 100 kg of rice processed, about 10 kg of rice bran can be produced.

- Rich oil content in rice bran: 15-22% depend on different rice variety, at the same time, the oil content of Parboiled rice bran is 6% - 10% higher than that of common white rice bran.

2. Economic Value Of Rice Bran Oil Extraction In Rice Mills

Processing 100 tons of rice will get 10 tons of rice bran. If rice bran is sold directly, it will be sold at the price of 0.2USD/ kg, total 2000USD of 10tons rice bran.

The vertical hydraulic press method of rice bran is used to press the oil. Each shift processes 10 tons of rice bran. The output of rice bran oil is 1.1 tons. The crude oil of rice bran is sold at 1USD/ kg, which is equivalent to 1100 USD. At the same time, the output of rice bran cake is 8.7 tons (including 2% loss), which is sold at 0.25USD/ kg, which is equivalent to 2175USD. The production cost of processing 10 tons of rice bran oil is about 200USD, which is equivalent to the recovery amount (1100 +2175 - 200 = 3075USD totally.

The gross profit (3075-2000=1075) of 1075USD can be increased by processing 10 tons of rice bran in each shift through vertical hydraulic pressing of rice bran.

3. Advantage To Build A Bran Oil Extraction Plant In Rice Mills

Less investment: a 100 ton scale rice plant will be built with a 24 press vertical hydraulic oil pressing production line processing 10 tons of rice bran per shift. The equipment investment in the workshop will be about 120,000USD; the workshop area will be about 210 square meters; the equipment investment cost recovery days for single shift production every day will be 120,000 ÷ 300 = 400 days.

Low cost: no need for expansion treatment and rice bran transportation; no three wastes treatment; less maintenance cost and convenient replacement; low power consumption, about 180 kwh per ton of oil; production cost of only 200USD per ton of crude bran oil, mainly wage cost.

Good safety: flexible production organization and management; no environmental pollution; no high temperature, high pressure, flammable and explosive hazards.

Good oil quality: the oleic acid value of crude bran is low when it is pressed on the new bran, and the acid value is about 10 mg; the oil color is good, the refining consumption is low, and the price of crude bran oil is relatively the highest.

High profit: processing 10 tons of rice bran per shift and producing 1.1 tons of crude bran oil can increase the gross profit by about 600USD per shift.

4. The Method Of Bran Oil Extraction

There are two method to make bran oil from rice bran:

I. solvent extraction method:

                                                                            Solvent oil

                    ↓

Rice bran → cleaning → extruding (pelleting) → leaching → mixed oil → evaporation → stripping → crude bran oil                                                                                                       ↓

                                                                          Bran meal←desolvation←wet meal 

Advantages:

high oil production rate; low residual oil rate, about 1%; large processing capacity.

Disadvantages:↓

- high cost of investment, processing and three wastes discharge treatment;

-- need the support of foreign rice bran sources and perfect rice bran preservation system;

- unable to start or stop production frequently;

- rice bran needs to be granulated or extruded to keep fresh, which results in high energy consumption;

- high management level and strict safety requirements;

II. Hydraulic press Method

Rice bran → cleaning → steaming and frying → making cakes → pre pressing → pressing → precipitation → filtration → crude bran oil                                                                                           ↓

                                                                                                                                  Chaff cake

Advantages:

-  low energy consumption, with an installed capacity of 14 kW for 24 oil presses, half of which are standby and do not need expansion;

- less investment, easy to be matched with rice plant, low processing cost, no waste treatment;

- simple operation, easy to learn, easy to hold, low maintenance cost and convenient replacement;

Disadvantages:

the oil production rate is lower than that of extraction, the residual oil rate in the bran cake is 3 - 5%, and the labor intensity is relatively large.

5. Processing Technology Of Rice Bran Oil Vertical Press:

Flow chart: Rice bran cleaning-steaming and frying- bran cake making- pre pressing- pressing-precipitation - filtration-crude bran oil

5.1. Bran cleaning: to remove broken rice, rice tip and other impurities from rice bran air separation and screening.

5.2. Steaming and frying: the process of rice bran being cooked by adding water (moistening), heating (steaming) and removing water (frying).

5.3. Bran cake making: The qualified rice bran after steaming and frying can be gathered into a round cake shape through the hydraulic pressure cake making machine. It is equipped with a pie ring and a pie plate.

5.4. Pressing: shaping and further compaction to prevent skew pressing.

5.5. Pressing: After the bran cake is loaded into the oil press, it can be divided into three processes: low pressure and fast pressure, high pressure and slow pressure, and oil filtering.

5.6. precipitation and filtration: through oil sink tank, oil filter tank, oil clarify tank and oil pump to get cleaned crude bran oil.

Packing Delivery

First, the brown rice is fed to rice polisher through screw head. the surface of the rice grain is polished by friction under a certain pressure and temperature. Through the polishing treatment, not only the floating surface of the rice grain can be cleared, but also the starch is pregelatinized and gelatinized on the surface of the rice starch, and the starch gelatinization makes up for cracks, thereby obtaining the smooth appearance, improving the storage life of the rice, therefore polished rice is very necessary.

Our Service

[Consulting Service] Our consultant provides you with pre-sales expertise consulting services, system evaluation, providing the best engineering solution

[Engineering Service] Set up special project team of technical, installation and sales for you. to design, install and commissioning a complete set of equipments, whole process tracking service.

[Training Service] Our experts in technology and management provide you long term production, operation, management, maintenance and other professional skills training, to help you train operation, technology, management personnel.

[Spare Part Service] We provides high-quality and reliable original accessories. And the service centers also keep store of a certain number of common accessories to meet the demand of rapid supply.

[Site service] Our service engineer goes deep into your site to solve practical problems. Conduct on-site training on the use of products and seek for improvement of a new way of thinking and method to reduce cost and increase efficiency.

FAQ

1. What is the delivery time of this machine if we book order right now?

We will deliver your order within 30-60days depend on different of machines.

2. How do you pack this machine for exporting?

We will provide packing which is suitable for the agreed means of transportation and for the foreseeable conditions of storage at the destination.

3. How can we make inspection before delivery?

We welcome you send your inspection manager come to our factory for inspection or you can nominate international the third part inspection company.

4. What is the warranty for your machine?

If any defect or non-conformity arising from faulty design, materials, we shall eliminate defects or replace machine.

5. What is the installation requirement of this machine?

The foundation of the machine should be with sufficient strength to support the weight of the machine.

There should be enough space around the machine for maintenance and inspection.