APPARATUS OF PURIFYING WASTE LUBRICANT OIL AND METHOD THEREFOR

摘要

PURPOSE: An apparatus of purifying waste lubricant oil and a method therefor are provided to repeatedly remove water and particulate contaminant contained in the waste lubricant oil, thereby recycling the waste lubricant oil, preventing environmental pollution and purifying the lubricant oil in a high level of purity. CONSTITUTION: The apparatus comprises: an oil storage tank(80) in which waste lubricant oil is stored and recovered oil obtained by removing particulate wastes from the waste lubricant oil; an evaporation chamber(40) that is connected to a condensed water tank(20) and a condenser(30) and evacuated as a vacuum pump(10) is actuated; a heater(80a) for heating the waste lubricant oil exhausted from the oil storage tank(80); an exhaustion unit having position sensors(41a,41b,51a,51b) and a control unit, the exhaustion unit controlling exhaustion and storage of the waste lubricant oil using and exhausting waste lubricant oil while the waste lubricant oil is sprayed through a spray nozzle(44) installed in the evaporation chamber(40) and connected to an exit of the heater(80a) to spray the heated waste lubricant oil; an oil pump(60) actuated to exhaust oil from the exhaustion chamber(40); and an electrostatic separator(70) having electrodes and a collecting filter to filter particulate wastes charged by corona discharge on a passageway of oil pumped by the oil pump(60).