Clay sand system dust recycling technology

Abstract

The invention belongs to the technical field of sand casting sand processing, and particularly discloses a clay sand system dust recycling technology. The clay sand system dust recycling technology comprises the following steps that (1) system dust is collected, the gas-forming property, the blue absorption power, and the loss on ignition and the water content of the dust are detected; (2) according to test data, auxiliary materials are added into the dust, wherein the auxiliary materials comprise 20%-40% of bentonite, 10%-20% of braize, 2%-5% of starch, 1%-5% of wood flour and the balance dust; (3) the above materials are evenly stirred to prepare a composite additive, the gas-forming property of the composite additive is 10-40 ml per 0.1 g of a mixture, the blue absorption power is 30-80g per 100 g of the mixture, and the loss on ignition is 5%-40%. By means of the clay sand system dust recycling technology, the dust is recycled, zero discharge of the clay sand system dust is achieved, cost is saved, and environmental pollution is reduced.

Description

technical field [0001] The invention belongs to the technical field of sand casting sand treatment, and specifically discloses a clay-sand system dust recycling process. Background technique [0002] Casting is a thermal processing technology with a long history, which has a history of about six thousand years in our country. Among them, the casting method that uses sand as the molding material to prepare the mold is called sand casting. Sand casting is not limited by the shape, size, complexity and type of alloy of the parts. The source of molding materials is wide, the production preparation period is short, the cost is low, and it can be adapted to single piece or mass production. It has always been the basic casting production. craft. Clay sand is divided into wet sand mold, dry sand mold and surface drying sand according to whether the sand mold is dried or not during boxing and pouring. Among them, the molding sand of green sand is usually made of raw sand, bentonite...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a clay-sand system dust recycling process to solve the problem of waste of raw materials and serious environmental pollution caused by the dust generated by the green sand casting system being discharged into the environment

Images