Rapeseed oil equipment, refining rapeseed oil equipment, rapeseed oil refining equipment, oil refining equipment, refining equipment direct sales manufacturer Zhengzhou Penguin Grain and Oil Machinery welcomes friends to visit the company. More than 30 years of production and sales experience have made the company's Products are of higher quality, best-selling products at home and abroad. Customers are welcome to rest assured that the quality is first-class, hotline, contact manager Zhang, mobile phone
Sunflower seed refining
The refining tank has a conical bottom, an open mouth, and is made of steel plates , effective and easy, the highest stirrer speed is /, the lowest is /, and the heating coil area in the tank is m2.
The water washing tank has an open conical bottom and is made of steel plate. It is effective and easy to operate. The maximum stirrer speed is / and the minimum is /. The area of the heating coil in the tank is m2.
The vacuum dehydration tank is welded with steel plates. The effective capacity is, its rotation speed /, and the heating area of the coil in the tank is square meters.
Each unit can filter crude oil/.
The filter press is a plate and frame filter press, each piece has a filtering area of /> This unit belongs to intermittent refining and has all the functions of large and medium-sized intermittent refining equipment, and is superior to large and medium-sized refining equipment.
This unit is a complete set, with its own heat source and electrical control, light weight and low power consumption. When customers return home, they only need to connect the power supply and tap water (a meter-high water tank is also acceptable), and prepare some consumer materials such as coal or firewood, caustic soda, and phosphoric acid clay.
2. Process
3. Main equipment
Neutralization pot is used for acid refining, alkali refining and water washing
Decolorization pot is used to remove pigments
The deodorization pot is used to remove the odor of grease (made of stainless steel)
The thermal oil furnace provides the heat energy required for production, and the temperature reaches ℃
The vacuum pump provides the vacuum required for decolorization and deodorization
The air compressor blows dry the decolorized clay
The filter filters the clay
The steam generator generates the steam required for deodorization distillation.
4. Unit Operation Instructions
The operating conditions of various greases are different and are for reference only
(1) Preparation before starting
Crude oil testing, determination of acid value and color , conduct small sample tests in the laboratory if possible
, turn on the cooling water
, prepare clay, alkali, coal or biological particles
, turn on the power supply
, check the vacuum pump, Are the air compressor, filter press, and thermal oil pump normal? Every time the thermal oil is replaced, it must be heated at about ℃ for an hour. If there is no water vapor overflowing in the high-level tank, it can be slowly added to ℃.
(2) Alkali refining operation method
, start up
Ignite the thermal furnace, control the temperature of the thermal oil at about ℃, start the vacuum pump, and wait until it is normal
, the whole process of intermittent refining operation The total time is about an hour for the oil to be heated, acid refining, alkali refining, water washing and drying and dehydration.
According to the difference in alkali concentration and oil temperature, the alkali refining operation method can be divided into two types: low-temperature concentrated alkali method with initial temperature ～℃ and alkali concentration of ～; and high-temperature light alkali method with initial temperature ℃ and alkali concentration of ～. The former It is widely used, and the latter is mainly suitable for crude oil with low acid value, light color and few impurities.
Ⅰ Low-temperature concentrated alkali method operation
Adjust the oil temperature to ~℃, then add ~% of the alkali solution within ~ minutes and stir at rpm for about ~ minutes, and observe the soap after the reaction When the particles are formed and separated, the temperature begins to rise slowly, about ℃ per minute. When the temperature reaches ℃, stop stirring and start to stand still to allow the soap stock to settle. It usually takes ~ hours, and then the soap stock is released.
Ⅱ High-temperature light alkali method operation
First, determine the alkali concentration according to the acid value of crude oil. Refer to the table below. Calculate the amount of alkali and water. When the acid value is lower than the acid value of each unit, The total amount of water added to a ton of oil is kilograms. When the acid value is higher than the weight of the oil, the super-alkali is only ~.
Acid value of crude oil~~~
Alkali concentration
During operation, first stir the crude oil evenly, raise the temperature to ~℃, use dilute salt water or phosphoric acid (concentration), wait until particles appear, then Add alkali, continue stirring for ~ minutes, and raise the temperature to ~°C. Stop stirring when the soap particles are obviously precipitated, and wait for ~ hours before adding soap stock.
ⅢWater washing
After releasing the soap stock, the oil is further heated to ℃, then hot water is added for washing and stirring. The water temperature should be ~~℃ higher than the oil temperature. If the water temperature is too low, it will easily emulsify. After the water is added, continue stirring for a few minutes, then let it sit for an hour to settle, release the soapy water, and wash repeatedly ~ times, depending on the quality of the clear oil. The water-washed clear oil is slowly heated to ℃, stirred and dehydrated for an hour. The water-washed clear oil can also be directly sucked into the decolorizing pot for vacuum drying for a few minutes.
(3) Decolorization operation method
Turn on the vacuum pump and adjust the vacuum level
First, suck the washed alkali refining oil into the decolorization pot, while stirring, raise the temperature to ℃, then stir for another minute to remove the moisture. drops to below, then inhale a small amount of decolorizing agent clay and activated carbon. The amount added depends on the color of the oil. Generally, the amount of oil is ~. Stir for 10 minutes. After cooling to ℃, use a decolorizing pump to pump the clay oil to the oil filter to separate the clay oil to obtain decolorized oil. .
(4) Deodorization operation method
The decolorized oil is sucked into the deodorization pot from the vacuum pump. When the vacuum degree reaches the above level, distillation starts and deodorization timing is started
, deodorization time in hours
, deodorization temperature ℃ /~℃
, deodorization vacuum degree or above
, the entire timing process must be steam distillation
, after deodorization is completed, continue to close the direct steam in the vacuum state, close the heat transfer oil, and open the cooling water valve , when the oil temperature drops to about ~℃, close the vacuum pump valve, and after passing the sampling inspection, the oil is packed in cans and barrels to complete the production process of high-grade cooking oil.
5. Precautions
After each replacement of the thermal oil, the thermal oil furnace must be kept at about ℃ for more than 1 hour.
The heat energy used in , neutralization pots and decolorization and deodorization equipment must be reasonably distributed and adjusted. When deodorizing, it must be ensured that the deodorizing temperature is ~℃, and other equipment mainly relies on valves to adjust the balance.
After maintenance, graphite gaskets must be used for heat conduction pipeline gaskets, and high-temperature valves must be used for valve replacement.
. Before the heat transfer oil furnace is ignited, the heat transfer oil pump must be started. After the heat transfer oil furnace ceases to fire, the heat transfer oil pump must continue to operate. The heat transfer oil pump can only be turned off when the temperature of the heat transfer oil drops below ℃.
It is forbidden to ignite the furnace without thermal oil. It is forbidden to ignite the furnace when the thermal oil pump is not running.
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