Working principle of three-phase centrifuge for oil-water residue Ruichen environmental protection kitchen waste oil extraction equipment

Description :

　　Working principle of three-phase centrifuge for oil-water residue Ruichen environmental protection kitchen waste oil extraction equipment

　　It is commonly referred to as the three-phase horizontal screw centrifuge. In China, the earliest production was the two-phase horizontal screw centrifuge, which is a solid-liquid separation centrifuge. The two-phase horizontal screw centrifuge is further divided into solid-liquid separation, liquid-liquid separation, solid-phase concentration, particle wet classification, and sealed explosion-proof. Different mechanisms require different processing requirements for the centrifuge, and the design parameters are adjusted accordingly. For example, the centrifuge used for sludge dewatering is not suitable for liquid-liquid separation, and the centrifuge used for dye grading is not suitable for separating flammable and explosive materials. Therefore, the selection of two-phase horizontal screw centrifuge is very important and must be finalized according to specific production process requirements. In the later stage, the three-phase decanter centrifuge evolved from the two-phase decanter centrifuge and was developed. Abroad, the three-phase decanter centrifuge is mainly used in the energy industry, especially in the petroleum industry. The principle of a three-phase horizontal screw centrifuge is the separation of solid, liquid, and liquid phases, commonly known as the separation of oil, water, and slag phases. In this way, one three-phase horizontal screw centrifuge can solve the separation of three materials at once.

　　Working principle of three-phase centrifuge for oil-water residue

　　After two liquid phases and one solid phase enter the centrifuge, they are expanded thousands of times by the centrifugal force field. The solid phase is settled under the action of centrifugal force, and the two liquid phases are also layered, thus achieving solid-liquid three-phase separation and being discharged from the body under the action of special mechanisms. The entire feeding and separation process is continuous, closed, and automated.

　　It is mainly composed of components such as drum, screw, differential, frame, housing, and motor. The drum adopts a double cone angle design, and the inner wall of the drum is specially designed with longitudinal concave convex grooves to improve the efficiency of spiral conveying of solid phase. The working surface of the spiral blade has a hard alloy protective layer, which effectively improves the wear resistance life of the spiral blade. The main motor is controlled by the main frequency converter, and the auxiliary motor is controlled by the auxiliary frequency converter. The frequency of the motor can be adjusted arbitrarily. The power supply of the auxiliary frequency converter is provided by the main frequency converter, known as DC common bus power supply. DC common bus power supply realizes energy feedback when the auxiliary motor is in the working state of the generator, which can effectively save electricity.

　　When the material to be separated is transported by the feed pump to the centrifuge drum, the high-speed rotating drum generates strong centrifugal force to settle solid particles with higher density than the liquid phase onto the inner wall of the drum. Due to the different rotational speeds of the screw and the drum, there is relative motion between the two (i.e., adjustable speed difference), and the solid (slag) with higher density settles onto the drum wall. Two phases of clear liquid with different densities form concentric cylinders, with the lighter liquid phase in the inner layer and the heavier liquid phase in the outer layer. The thickness of different liquid rings can be adjusted by adjusting the liquid plate (i.e. the water content in the oil or the oil content in the water can be adjusted). The slag deposited on the wall of the rotary drum is transported by the screw conveyor to the cone end of the rotary drum, and discharged into the solid material tank from the discharge port. Water and oil are discharged from their respective outlets, and the entire three-phase separation process of oil, water, and slag is automatically fed and discharged.

　　Oil water residue three-phase centrifuge, kitchen waste oil extraction equipment, overall advantages:

　　1. Use safety protection devices

　　The use of safety protection devices ensures that the rotating body of the equipment will not detach from the motor during high-speed rotation. This design is very clever and helpful for the smooth operation of the machine.

　　2. One investment, worry free in the future

　　Unlike other devices, the subsequent protection of this type of equipment is very convenient and requires limited consumables.

　　3. The oil is clear and of good purity

　　This equipment adopts a centrifugal refining machine, which saves time and electricity, has good oil extraction effect, good oil quality, cool color, high purity, and can be directly sold after production without the need for other processing.

　　4. Fast extraction speed

　　This machine not only integrates heating, vacuum refining, and centrifugal refining, but also adds automation. When the oil residue reaches a certain level, it will be automatically cleaned, saving time and effort.

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• Working principle of three-phase centrifuge for oil-water residue