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I. Raw materials: Crude oil, relative density: 0. – 0.； Viscosity: 0 – 00 Pa·s ； Carbon content: over 0%. II. Equipment: Crude oil refining tank, dimensions: m X m; adjustable temperature range: -0 0C to 0 0C; number of agitators: ; the finished product is located at the bottom of the crude oil refining tank. Number of crude oil outlet ports: ; ordinary valves, diameter: cm ； At the same level as the bottom of the crude oil refining tank, on the front and back sides of this tank, there are openings used for discharging the refined crude oil ； A pipe used for draining the petroleum crude after it has been redissolved. The connecting pipe between the petroleum crude refining tank and the sedimentation tank is made of stainless steel with a diameter of cm; its length is 0 cm. A 00-watt suction valve and a 00-watt pressure valve are installed side by side in the middle of this connecting pipe. The sedimentation tank has dimensions of 00 cm X 00 cm X 00 cm. Valves with a diameter of cm are installed at the bottom of the front part (at a distance of cm from the bottom) and at the bottom of the rear part (at a distance of cm from the bottom). An electronic valve with a diameter of cm is also installed at the bottom, allowing temperature control within the range of -0 0C to 0 0C. The connecting pipe between the sedimentation tank and the cooling tank is also made of stainless steel with a diameter of cm; its length is 0 cm. A 00-watt suction valve and a 00-watt pressure valve are installed side by side in the middle of this connecting pipe. The cooling tank has dimensions of 00 cm X 00 cm X 00 cm, with a temperature control range of -0 0C to 0 0C, and an accuracy of ± 0C ； Valves with a diameter of cm are installed at the front bottom and rear bottom (at a distance of cm from the bottom), while an electronic valve with a diameter of cm is installed at the bottom. III. The basic production process is as follows: To adjust the temperature in the crude oil refining tank, the temperature inside the tank is determined by the amount of steam supplied through the steam pipes, and this amount of steam can be controlled using steam control valves (which need to be installed near the steam inlet pipes). For example, at a temperature of 0 degrees: . kilopascals/second ； Degree: kPa/second ； 0 degrees: . kPa/second (if the crude oil refining tank is located outdoors, the corresponding steam volume can be increased by 0. kPa/second due to the lower outdoor temperatures). The specific steps for the first stage of crude oil refining are as follows: Pour the crude oil into the refining tank; the amount of oil to be poured in is determined based on the capacity of the tank at position /0. Depending on the refining requirements, this process can be carried out in several steps. For the first stage of refining, the temperature is 0°C and the refining time is 0 minutes ； Second step: refining. Refining temperature: 0°C, refining time: 0 minutes ； Third step: refining. Refining temperature: 0°C, Refining time: 0 minutes ； Fourth step: Refining. Refining temperature: 0 0C, Refining time: minutes ； Step 5: Refining. Refining temperature: 0 0C, Refining time: minutes ； Step 6: Refining. Refining temperature: 0°C, Refining time: 0 minutes ； Thereafter, the refined crude oil enters the sedimentation stage, while the condensed mixture of crude oil and water proceeds to the redissolution stage (for detailed information, please refer to the production technologies related to asphalt). Refined crude oil: It is injected into the sedimentation tank through the connecting pipe between the crude oil refining tank and the sedimentation tank; the amount injected is / of the capacity of the sedimentation tank. The sedimentation stage involves the following steps: Based on the requirements for sedimentation, this process is carried out in stages. In the first step, the sedimentation temperature is 0°C, and the sedimentation time is 0 minutes ； Step 2: Precipitation temperature: 0°C, precipitation time: 0 minutes ； Third step, precipitation temperature: 0°C, precipitation time: 0 minutes ； Step 4: Precipitation temperature: 0 0C, precipitation time: minutes ； Step 5: Precipitation temperature: 0 0C, precipitation time: minutes ； Step 6: Precipitation temperature: 0 0C, precipitation time: 0 minutes ； Afterward, the precipitated refined petroleum oil is discharged into a cooling tank to enter the cooling stage ； The residual solid petroleum and crude oil at the bottom of the sedimentation tank enter the redissolution stage (for detailed information, please refer to the production techniques related to asphalt). Crude oil for refining: The refined crude oil is injected into the cooling tank using the connecting pipe between the sedimentation tank and the cooling tank; the amount injected is / of the capacity of the cooling tank. During the cooling stage, the specific steps are as follows: Depending on the cooling requirements, cooling can be carried out in stages. The first stage involves a cooling temperature of 0°C and a cooling time of 0 minutes ； Step 2: Cooling temperature: 0 0C, Cooling time: 0 minutes ； Third step, cooling temperature: 0 0C, cooling time: 0 minutes ； Step 4: Cooling temperature: 0 0C, Cooling time: minutes ； Step 5: Cooling temperature: 0 0C, Cooling time: minutes ； Step 6: Cooling temperature: 0 0C, Cooling time: 0 minutes ； Thereafter, the refined petroleum crude oil is discharged into a sedimentation tank (for detailed information, please refer to the production technology of rubber tire raw materials) ； The basis for refined oil crude oil/finished products