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Purification method and equipment for waste hydraulic oil of extruding machine

A waste hydraulic oil and purification equipment technology, applied in the direction of lubricating composition, etc., can solve the problems of ineffective removal of particle pollutants and low quality of regenerated oil, achieve good environmental protection effect, improve viscosity and viscosity-temperature performance, and purify high efficiency effect

Active Publication Date: 2015-04-22
ALNAN ALUMINIUM CO LTD
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Problems solved by technology

This method has high efficiency in oil treatment and has a certain ability to remove solid particles such as metal iron filings, but it cannot effectively remove small-sized particle pollutants, and the quality of regenerated oil is not high.

Method used

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  • Purification method and equipment for waste hydraulic oil of extruding machine

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Embodiment 1

[0037] Taking the purification of hydraulic oil of aluminum alloy extruder as an example to illustrate the process of the purification method of hydraulic oil of extruder according to the present invention.

[0038] (1) Impurity removal: Pour the waste hydraulic oil into the filter tank, and remove large particles of impurities in the waste hydraulic oil through the screen of the filter tank. The waste hydraulic pressure is filtered by the filter element at the upper end of the filter tank after preliminary precipitation in the filter tank. Remove fine particle impurities in waste hydraulic oil;

[0039] (2) Sedimentation: The filtered waste hydraulic oil enters the sedimentation tank through the filter element at the upper end of the filter tank for static precipitation. The water and impurities in the waste hydraulic oil settle to the bottom and are separated, and the waste hydraulic oil passes through the upper end of the sedimentation tank. The oil outlet enters the second...

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Abstract

The invention discloses a purification method and purification equipment for hydraulic oil of an extruding machine. The purification method is characterized in that a full-automatic washing method is adopted and comprises the steps of removing impurities, precipitating, settling by gravity, carrying out two-stage water removal, refining and purifying; and the hydraulic oil of the extruding machine is continuously operated in a stable conveying pipeline. According to the purification method and the purification equipment for the hydraulic oil of the extruding machine, the water removing rate can be up to not less than 99.99%; the hydraulic oil has no impurities and the quality of the purified hydraulic oil is good; the recycling utilization rate of the waste hydraulic oil is up to not less than 90%; and the purification method and the purification equipment have the characteristics of high automation degree, simplicity in operation, high working efficiency, high resource recycling utilization rate, safety and environmental friendliness and the like.

Description

technical field [0001] The invention relates to the field of purification of hydraulic oil, in particular to a method and equipment for purifying hydraulic oil of an aluminum alloy extrusion machine. Background technique [0002] In the aluminum processing industry, hot extrusion is the most common processing method for aluminum alloys, and extrusion machines are the most commonly used equipment for aluminum alloy hot extrusion. During the extrusion process of aluminum alloy, hydraulic oil often leaks from the extruder. Since the hydraulic oil leaked from the extruder contains more water and impurities, it is generally drained directly. In addition, after the hydraulic oil has been used for a period of time, due to mechanical wear, frictional heat aging, rust, contamination (water, solid matter, fuel oil) and other reasons, if these pollutants are not removed in time, it will affect the normal operation of the extruder. Operation and service life, the most common solution i...

Claims

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Application Information

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IPC IPC(8): C10M175/00
Inventor 谢逢春覃城覃德广农桂发李兵
Owner ALNAN ALUMINIUM CO LTD
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