Oil mist recovery, separation and purification device for minimum quantity lubricant grinding process

An oil mist recovery, separation and purification device for a minimum quantity lubricant (MQL) grinding process, the device comprising:

• a pneumatic separation mechanism, configured to separate oil mist and particles in air and comprising a pipeline and a fan fixedly connected with one end of the pipeline, wherein the fan is configured to form a negative pressure in the pipeline, at least one cone-shaped filter mesh mechanism is disposed in the pipeline, a tip of the cone-shaped filter mesh mechanism faces a side of an air inlet direction of the pipeline, and the cone-shaped filter mesh mechanism is configured to separate the oil mist and particles in air;
• and
• a filtering and recovery mechanism, connected with the pipeline, configured to filter and recover the oil mist separated by the pneumatic separation mechanism, and comprising a case body, a filtering mechanism and a recovery mechanism, wherein the case body is connected with the pipeline through a connecting part, the filtering mechanism is configured to filter separated oil mist, the filtering mechanism is connected with the recovery mechanism, and the recovery mechanism is configured to recover oil filtered by the filtering mechanism.