A kind of release agent recovery method and recovery device

Abstract

The invention provides a release agent recovery method and a recovery device. The recovery device comprises electromagnetic valves, and a die casting machine, a collecting barrel, an oil separation pool, a PH adjusting pool, a demulsification pool, a filter tank, a storage pool, a release agent water distributor and a sprayer connected in sequence; the electromagnetic valve is arranged between the collecting barrel and the oil separation pool; the electromagnetic valve is arranged between the demulsification pool and the filter tank; and the electromagnetic valve is arranged between the storage pool and the release agent water distributor. The release agent recovery device can solve the die-casting factory release agent waste water treatment problem, can save a lot of consumed release agents, saves 40-50% of release agent use costs, improves the resource use efficiency, and reduces the enterprise production cost.

Description

Technical field [0001] The invention belongs to the field of die casting, and specifically relates to a method and a recovery device for recovering a release agent used in the die casting process. Background technique [0002] Release agent is a functional substance between the mold and the finished product. The release agent is chemically resistant and will not be dissolved when it comes in contact with the chemical components of different resins (especially styrene and amines). The release agent also has heat resistance and stress properties, and is not easy to decompose or wear; the release agent adheres to the mold without being transferred to the processed part, and does not hinder painting or other secondary processing operations. Due to the rapid development of injection molding, extrusion, calendering, molding, laminating and other processes, the amount of release agent has also been greatly increased. [0003] In the aluminum and magnesium alloy die-casting process, a mo...

AI Technical Summary

Problems solved by technology

However, in actual production, the use efficiency of the release agent is only 30%-65% during the high-pressure and large-flow spraying process, and the rest is mostly discharged directly to the sewage pool in the form of sewage

Since the release agent is a chemical liquid emulsified by various chemical raw materials, not only the unit price is high, but also contains a variety of organic components that are harmful to the environment

Direct discharge of release agent wastewater will not only cause great harm to the surrounding environment, but also cause a great waste of cost for enterprises, which runs counter to the energy-saving and environmental protection policies advocated by the state

[0005] On the other hand, during the injection process of the release agent, due to the high temperature of the mold surface, the high-pressure gas, the aluminum chips attached to the mold surface, engine oil and other substances are mixed together during the high-pressure injection process, making the original normal temperature The great physical and chemical changes in the diluted solution of the release agent make it difficult to recycle and reuse the release agent wastewater

At present, after the general release agent recycling method, due to the unclean removal of impurities, the recycling quality and use effect are average, and the poor effect will even reduce the quality of die castings and the service life of die casting molds

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