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The JYCW-Ⅰ type residual mist recovery unit is a supporting device for removing residual mist, developed specifically for oil mist lubrication units. When the oil mist generated by oil mist lubrication of the main machine flows through the bearings and bearing chambers of the rotating equipment, part of the oil mist condenses into liquid oil, while another part exits the bearing chambers, with a small amount of oil remaining suspended in it. This is what we usually refer to as residual mist. The residual mist exits the bearing chamber and is collected in the oil mist return pipe, which is connected to the oil mist recovery unit. Within this unit, the oil mist is separated from the gas, thereby preventing environmental pollution. The JYCW-Ⅰ type two-stage residual mist recovery unit is an efficient mechanical oil mist recovery device designed based on the principles of centrifugal impact and self-circulation. Driven by the motor, the hub rotates at high speed, creating a negative pressure that draws oil mist particles into the hub. These particles collide continuously with the blades, coalescing into oil droplets. Under the effect of centrifugal force, these oil droplets pass through the pores in the fiber filter and move toward the inner wall of the housing, where they form larger oil drops that eventually flow back into the oil tank ； The gas rises, passes through the top silencing filter pad; part of it is sent to the next stage of oil mist collector, while the other part returns to the hub for secondary centrifugal impact separation. The secondary oil collection collector further processes the mist that has undergone primary treatment, and ultimately releases the clean air through the outlet. This device uses a new type of oil-gas separation system as its core component, which is capable of continuously and efficiently capturing oil mist to the greatest extent possible; as a result, its filtration efficiency for oil mist is as high as 98%.