Remanufactured blank cleaning device and application method thereof

Abstract

The invention discloses a remanufactured blank cleaning device. The remanufactured blank cleaning device comprises a supercritical mixed fluid generation unit, a cleaning unit and a recovery processing unit which are connected in sequence. The supercritical mixed fluid generation unit comprises a supercharging mixing device used for mixing deionized water and an alcoholic solution. The supercharging mixing device is connected with the cleaning unit through a heating device and a spray-washing device. The invention further discloses an application method of the remanufactured blank cleaning device. According to the remanufactured blank cleaning device and the application method thereof, fluid is sprayed onto the surface of a remanufactured blank in a jet flow mode to form a supercritical mixed fluid constant-temperature and constant-pressure microenvironment on the surface of the remanufactured blank; pollutants such as greasy dirt, grease and carbon deposit are washed away efficiently under the scouring effect generated by continuous flowing of supercritical fluid; the remanufactured blank cleaning device is suitable for cleaning of engines, gearboxes and other shell-type remanufactured blanks and especially suitable for effectively cleaning oil type, grease type and carbon deposit type pollutants on the portions such as grooves, blind holes, gaps and pits of blind hole type parts.

Description

technical field [0001] The invention relates to a cleaning device and its usage method, in particular to a blank cleaning device and its usage method. Background technique [0002] Remanufacturing is an advanced form of "reuse" in the circular economy advocated by the state. Under the condition that the quality of the remanufactured product is not lower than that of the original product, its cost is only 50% of the original product, 60% of energy is saved, and 70% of material is saved, which can significantly reduce the cost of product production and reduce the environmental impact of the production process. influences. Since the 21st century, remanufacturing projects have gradually gained the attention of various departments of the state. The ministries and commissions of the State Council have jointly promulgated and issued the "Circular Economy Promotion Law of the People's Republic of China", "Opinions on Promoting the Development of Remanufacturing Industry", " The St...

AI Technical Summary

Problems solved by technology

[0004] It has been reported in the literature that supercritical CO 2 Technology and installations for cleaning parts, CO 2 The critical value is low, and the cleaning process conditions are not high, but supercritical CO 2 The ability to dissolve pollutants such as oil stains, carbon deposits, paints or coatings is small, and supercritical CO 2 Often used in combination with other cleaning methods, the process is complex

In addition, the cleaning of parts is carried out in a closed reactor, and the parts are built into the reactor and fixed, and the supercritical CO 2 Can not flow continuously, can not produce scouring effect on pollutants, the cleaning efficiency is not high, and the cleaning quality is poor

Invention patent (CN102211096A) discloses a supercritical water jet cleaning equipment, which is used for non-destructive cleaning of silicon wafers, but the local supercritical environment is difficult to control, and temperature or pressure deviations will cause the local cleaning environment to deviate from the supercritical state, that is, to transform into a near-critical state. Or high temperature and high pressure water, which reduces the physical and chemical properties of supercritical water

Therefore, the energy consumption of the cleaning process is high, and it is difficult to realize the industrial cleaning of silicon wafers.

Images