Waste glass label remover

Abstract

The detection methods for labels coatings or contaminants on waste or broken glass, arranged before a recycling process often give false readings on determining the true nature of the materials present, hence an at least partial removal of said contaminants is necessary. An intensive abrasion of the waste glass or broken glass introduced into the unit with continuously applied shear and compression forces between blades (6) and a housing (10) is generated by the provision of a dry-washing unit with just one rotating driven shaft (12), to which the blades (6) are fixed with a fixed minimum separation (16) from the inner wall of the housing (10). The required abrasion is achieved by compression of the material flow, and the friction of the shards against each other thus generated and also by the transport process within the machine. By means of a suitable interaction of the blades (6) and the housing (10), a thorough and complete abrasion of the labels and contaminants sticking to the broken glass can be achieved which renders a manual material selection unnecessary.

Description

technical field [0001] The invention relates to a device for dry cleaning waste glass or glass fragments according to the preamble of claim 1, comprising rotatable blades in a housing for shearing and abrading the waste by shear and pressure Glass or glass fragments. Background technique [0002] In order to provide reusable waste glass and increase its value, a separation process is required in which the glass material is distinguished from other materials in the conveyed material stream, such as plastics, ceramics or metals, by means of identification devices , and then separate them from each other. [0003] In this case, the identification takes place at least once by means of a detection based on the reflection darkness or transmittance of the supplied object, according to which the unwanted material is then introduced into the container provided for this by blowing out a nozzle or other mechanical removal. [0004] But what proves problematic for this is the fact tha...

AI Technical Summary

Problems solved by technology

However, this delabeling device for plastic hollow bodies is not at all suitable for the treatment of material flows of glass shards, since, according to the applied "acceleration and collision principle" and the high speed and flow values ​​of the device, no detachment of the label on the glass shards, but rather complete crushing or smashing of this glass shard material stream which is useless for the recycling sought

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