Separation method apparatus for pill-sand mixture after cast surface treatment

Abstract

The invention relates to a separating method and the device thereof used for shot and sand mixture after surface treatment of castings, the method is mainly characterized in that large metallic impurities are primarily separated through a screw conveyor, then steel shot and small metallic impurities are absorbed on a separating plate with electromagnet, sand and dust are blown off by a blower machine, and the mixture is eventually separated into the integrated steel shot, the crushing steel shot and small metallic impurities through a vibrating motor and a spring strainer. The separating device adopts the combined use between the braking motor and the non-contact type proximity switch, the combination of the vibrating motor and the spring strainer and the combination of the air blower andthe electromagnet are adopted, so that the separation of the steel shot, the dust, the adhering sand and the metallic impurities is complete. The invention has the advantages that the structure is simple, the installation is convenient, the recycling quality and the recycling efficiency of the steel shot can be obviously enhanced, the cost is reduced, not only the method is favorable for enhancing the precision and the efficiency of the surface treatment of the castings, but also the raising dust can be restrained so as to protect the environment.

Description

Technical field [0001] The invention relates to a method and a device for separating shot-sand mixtures after surface treatment of castings. Specifically, it uses electromagnets, hair dryers, and spring screens to specifically treat shot-sand mixtures after surface treatment of castings according to the composition of the mixture. Methods and devices for separation. Background technique [0002] The surface treatment of castings is a process that cannot be omitted in the production of castings. It can not only remove rust and sand, but also can strengthen the treatment. At present, in actual production at home and abroad, more than 90% of castings will be surface cleaned by shot blasting or shot blasting, which not only saves the processing time of the surface to be processed, but also protects the machine tool and cutting tools from damage. [0003] The casting surface shot blasting process uses steel shots to be projected to the surface of the casting at a high speed to effectiv...

AI Technical Summary

Problems solved by technology

Although it can achieve a certain separation effect, it does not consider the separation of metal impurities, and finally relies on winnowing to separate the complete steel shot and broken steel shot, which may cause metal impurities to be mixed in the complete steel shot, reducing the quality of separation

The air separation separator and the traditional magnetic air separation separator do not fully consider the actual composition of the shot-sand mixture, so the separation is not thorough enough and the efficiency is not high

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