500TPD palm oil refining machin/palm oil filling machinery.

Palm oil refining machin/palm oil filling machinery

Main Processes Introduction

Neutralization: crude oil is output by the oil feed pump from oil tank, and enters the

crude oil heat exchanger to recover part of heat after metering and then is heated to the required

temperature by the heater. After that, the oil is mixed with the metered phosphoric acid or

citric acid from phosphate tank in the gas mixture (M401), and then enters the conditioning tank (R401) to

make the nonhydratable phospholipids in oil change into the hydratable phospholipids. Add the alkali

for neutralization, and the alkali quantity and alkali solution concentration depend on the quality of the crude oil.

Vacuum drying stage: there is still moisture in the oil from the wash separator, and the

moisture will affect the stability of the oil. So the oil at 90°C should be sent to vacuum drier to remove the

moisture, and then the dehydrated oil goes to the decoloring process.

Continuous Refining Decoloring Process

The main function of decoloring process is to remove oil pigment, residual soap grain and metal ions.

Under negative pressure, the mechanical mixing method combined with steam mixing will improve

the decoloring effect. The degummed oil firstly enters into the heater to be heated to the

appropriate temperature (110°C), and then goes to the bleaching earth mixing tank.

The bleaching earth is delivered from the low bleaching box to the temporary tank by wind.

The bleaching earth is added byautomatic metering and is interlockingly controlled with the oil.

The oil mixed with the bleaching earth overflows into the continuous decolorizer,

which is stirred by nonpowered steam. The decolored oil enters into the two alternate leaf filters to be filtered.

Then the filtered oil enters the decolored oil storage tank through the security filter.

Continuous Decoloring Process Features:

1. The oil fully contacting with the decolorant can improve the decolorization efficiency and

reduce the usage of decolorant;

2. The continuous and uniform material flows will balance the decoloring time and avoid the recovery

of grease oxidation and acid value.

3. The special mixing structure of decoloring tower won't cause the material dead area, which can

avoid the adsorbent sedimentation and pipe blockage.

4.The continuous airtight efficient filtration equipment has realized the automation of cake discharge

and reduced the labor intensity.

5. The advanced drying technology can reduce the oil content in filter cake.

Continuous Refining Deodorizing Process

The qualified decolored oil enters into the spiral plate heat exchanger to recover most of the heat,

and next goes to high pressure steam heat exchanger to be heated to the process temperature

(240-260°C) and then enters the deodorization tower. Oil from the deodorization tower enters into

the heat exchanger to recover most of the heat and makes further heat exchange with crude oil,

and then is cooled to 80-85°C through the cooler. Add the required antioxidant and flavor agent,

and then cool the oil below 50°C and store it.

Automatic Control System

Our company has applied the automatic control system with advancedness, security, reliability into

the pretreatment, extraction, refining and fractionation in large oil plants. For its application in

automatic control system, it can control the production in the entire workshop and monitor the

operational status of each device by controlling the computer terminals in the room. One person

only can operate the entire workshop, with efficient production management. It has reduced the

production cost greatly and improved the management efficiency.