The immersion of oil can be regarded as solid -liquid extraction. It is a process of separating the relevant ingredients in solid materials with different dissolves with solvents such as orthopedic alkane.When immersion, the solvent is treated with solvents, and the ingredients that are easy to dissolved (mainly oil) are dissolved in the solvent.When the oil is immersed in a static situation, the oil is transferred in the form of a molecule, which is a \"molecular spread\".However, most of them during the immersion process are performed between the relative movement between the solvent and the granules. Therefore, in addition to the molecular diffusion, it also depends on the \"convection diffusion\" process of solvent flow.

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hybrid oil → evaporate → steam → hair oil filtration → immerse hair oil → remove refining

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Solvent condensing recycling cycle

Immersed the oil embryo (or pre -squeezed cake) in the selected solvents, dissolved the oil in the solvent (forming a hybrid oil), and then separated the hybrid oil from the solid residue (meal).The hybrid oil is evaporated and carried according to different boiling points, so that the solvent vaporization becomes the separation of vapor and oil, so as to obtain oil (immersion hair oil).The solvent steam is continued to be used after condensation and cooling recycling.The meal also contains a certain amount of solvents. After drying and drying, the dry meal is obtained. The solvent vapor swinging during the drying drying process is still condensed and cooled.

• Intermittent immersion

ingredient embryo enters the immersor, removes out of the meal self -immersion, the injection of fresh solvents, and the extraction of thick mixed oil are all in batches, interruption, and periodic immersion process.EssenceIt is mainly suitable for small -scale oil plants.This kind of oil -making equipment is mainly an immersion tank, condenser, long tube evaporator, steam tower, absorbing tower, etc.

1. First, send the pre -squeezed cake through the twisted dragon into the immersion workshop, and the bouquet improvement machine is elevated to the Templim Dragon.Then enter the tilted deposit box or directly enter the immersion tank to shorten the loading time of the immersion tank.

2. Open the upper lid of the immersion tank, fill the ingredients, and then block the upper lid tightly.

3. Began to enter the fresh solvent. First, open the solvent pump and the valve to pull out from the solvent weekly tank, open the steam valve, so that the steam to enter the solvent to warm up.When the solvent temperature reaches 45-50 ° C, it is then entered into the immersion tank through the spray pipe.(The solvent is more than 20-50 mm more than 20-50 mm) Open the free gas valve for normal soaking.

4. Soaking time is 10-15 minutes.Open the mixed oil pump leaching tank under the pump into the tank cycle for 5 minutes or directly pump into the No. 2 immersion tank with the solvent oil. If the solvent is insufficient, the fresh solvent can be added.

5. Soak the pumping tank on No. 2 for 15-20 minutes, pump the hybrid oil into the No. 3 can, soak for 10-15 minutes, pump the hybrid oil into the No. 4 can for 10 minutes, the hybrid oil cycle 3-4 times, 3-4 times, 3-4 times, 3-4 times, 3-4 times, 3-4 times, 3-4 times, 3-4 times.If the concentration of hybrid oil is not enough, you can use the mixed oil temporary tank to recycled and push it in order.

6. Collect the mixed oil in the pumping of the pumping of the pump in the mixed oil temporary tank. At the same time, the concentration 6obe 'saline pump into the mixed oil tank from the salt water tank.Elected fine crumbs.

Suitable for output: 1-15 tons/day, especially small varieties of oil and precious oil immersion extraction.

2. Continuous immersion process and equipment

ingredient embryo enters the immersion, unloading from the self -immersed in meal, the injection of fresh solvents, and the extraction of thick mixing oil are continuous immersion processes.It mainly includes the following four processes.

1. Immerse process: Oil -ray embryo or pre -squeezing cake from the pre -processing workshop or pre -chopping workshop, send it to the store bucket from the scraper conveyor, below the store bucket is a cone -shaped closed valve feederEssenceThe speed of the valve core in the closed valve lowering the valve core is coordinated with the material in the storage fight, and the height of the feeding height in the deposit box is automatically controlled to effectively prevent the solvent gas in the immersion device.EssenceEmailing oil evenly enters the immersion in the rotor in the immersion vessel through the closed valve. As the rotor slowly rotates, the oil in the immersion is not sprayed with different concentration of hybrid oil.The goge oil and the hybrid oil and solvent form a reverse flowing process.The cycle of hybrid oil is completed by a hybrid oil circulating pump.The soaked oil was discharged into the meal bucket after dripping in the immersion grid.The meal device here uses a cylindrical meal out of the cylindrical meal equipped with two wings, so that the amount of meal is relatively uniform.The impact of wet meal on the scraper.The wet meal is sent to the steaming machine through the scraper conveyor.The thick hybrid oil pulled by the hybrid oil pump was separated from the mixed oil processing process after being separated by the rotor separator.Generally, the height of the ingredient layer in the flat immersion is 2 to 3m, the immersion time is 90 to 120 minutes, the immersion temperature is 50 ~ 55 ° C, the wet meal is less than 30%of the solvents after immersion, and the concentration of the mixed oil is 20-25%.

2. Wet meal steaming process:	Wet meal is sent to DTDC steaming through the scraper conveyor. The device is generally 6 to 10 layers.The 1 to 3 layers on the ZUI are the pre -heating layer, the 4 to 6 layers are self -steam layers, and the seventh layer is the direct steam steaming layer.After steaming, drying, and cooling treatment, the finished meal is more than 700 ppm, the meal is less than 12%of the water, and the temperature of the meal is about 40 ° C.The finished meal is sent to the meal library through the measuring library through the measurement and packaging.The hybrid steam discharged by the steam is captured by the cyclone wet cracker with a solvent and enters the first evaporator as the heat source of evaporation.The air excreted from the hot air drying layer and the cold wind cooling layer from the steaming aircraft is captured by the whirlwind.			Note: The difference between normal pressure evaporation and negative pressure
					Temperature			° C			°
		Contains

30 ~ 50ppm 80 ~ 90KPa 3. Mixed oil treatment process: After the deep -mixed oil from the immersorrhea passing the rotor separator, enter the mixed oil , after further sinking and separation,Pump to the first long tube evaporator.The heat source of the first evaporator is heating steam from the steam and steam vacuum pump from the steam.After the first evaporation and the separation of the steam liquid, the mixed oil was pumped to the hot and cold oil heat exchanger. After being heated, the second long tube evaporator was entered.Pumping into the steam Tower, the residual dissolving from the GAC Tower is less than 500 ppm, and the temperature of about 105 ° C is then a pump heating switch, which is cooled to the refined workshop after cooling.The negative pressure of hybrid evaporation and steam -lifting systems is formed by the steam vacuum pump. 4. Solvent recovery process: hybrid steam excreted from steaming is used as a thermal source for the first evaporator, the condensate liquid enters the splitter, and the steam is not condensed into the energy -saving device.The condensate of the condenser's condensate is sprayed condensation. The condensate liquid enters the water splitter, and the steam is not condensed into the steam -proof condenser.The hybrid steam and solvents steam from the first evaporator and the second evaporator enters the evaporator. The condensate is pulled out of the pump into the energy -saving device, and the unaware gas is pulled out by the steam vacuum pump into the first evaporator.The vacuum pump causes the negative pressure of the condenser, which then causes the negative pressure of the evaporator. Mixed steam from Steaming Tower enters the steam lifter condensation, the condensate liquid is discharged into the water siba, and the unimaginable gas is drawn out of the steam vacuum pump into the first evaporator.And the negative pressure state of Steam.After the free gas in the immersion device is condensed by the immerser condenser, the condensing solution enters the water sidewater.Free gas from steaming condenser, immersion condenser, water sibling, and solvent storage tank enters the ZUI.The steam is absorbed by the cold paraffin oil.Cold swallow oil containing solvents is heated by heat exchanger and heater, and enters the solvents in the solvents. It is separated from the paraffin oil from the paraffin oil.The solvents separated from the water sideline enter the solvent weekly database, and the separated water is then cooked. After recovering the residual solvents, it is discharged through the water sealing pond.The solvents in the solvent turnover are pumped from the pump to preheat the inferior of the solvent and enters the immersion. Pay attention to the recycling of solvents in free qi and reduce costs. Try to avoid the amount of air entering the system as much as possible, and to configure the condenser reasonably to ensure enough condensate area, appropriately increase the flow rate of the coagulator cooling water, control the cooling water temperature, import the import below 25 ° C, export below 40 ° C, export below 40 ° C.The condensation effect is good, the temperature of the free gas is below 20 ° C, and the temperature of the condensate is below 40 ° C.