A Physical Separation System for Metal Impurities in Broken Waste Glass

A technology of metal impurities and physical separation, which is applied in the field of solid waste recycling, can solve the problems of incomplete purification of impurities and low metal removal rate of waste glass, and achieve the effects of efficient recycling, avoiding secondary pollution, and avoiding waste water pollution

Active Publication Date: 2022-03-08
SUN YAT SEN UNIV
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  • Abstract
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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to overcome the defects and deficiencies of the prior art, such as low metal removal rate of waste glass and incomplete purification of impurities, and provide a physical separation system for metal impurities in waste glass to realize green and high-efficiency purification of metals in waste glass. , full-value recycling, realizing high-purity recycling of waste glass while reducing environmental pollution in the recycling process

Method used

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  • A Physical Separation System for Metal Impurities in Broken Waste Glass

Examples

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Embodiment 1

[0027] Example 1 A Physical Separation System for Metal Impurities in Broken Waste Glass

[0028] The physical separation system of metal impurities in the crushed waste glass is a primary crushing device & screening device, a primary magnetic separation device, a primary eddy current separation device, a secondary eddy current separation device, a screening device, a secondary Crushing device & screening device, three-stage crushing device & screening device, two-stage magnetic separation device, three-stage eddy current separation device, one-stage high-voltage electrostatic separation device and two-stage high-voltage electrostatic separation device, each The devices are connected by a material conveying device;

[0029] The method for separating metal impurities in waste glass by the system comprises the following steps:

[0030] S1. Coarsely crush and sieve the waste glass material in the primary crushing device & screening device to obtain waste glass material with a pa...

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Abstract

The invention belongs to the technical field of solid waste recycling, and in particular relates to a physical separation system for metal impurities in broken waste glass. The system combines various physical separation technologies such as magnetic separation, eddy current separation, and high-voltage electrostatic separation. Compared with wet recovery technology, the whole process is operated without water, and each metal component in the waste glass mixture has been efficiently recovered. Sorting and purification realizes anhydrous purification of metal components in waste glass and avoids secondary pollution. Compared with the prior art, the physical separation system of metal impurities in waste glass of the present invention has a wide range of applications and fewer limiting factors, and the waste glass purification technology developed based on this device avoids the problem of wastewater pollution in wet recovery technology, and also The efficient recovery of various metal components in waste glass provides a new technology for the green and efficient recovery of waste glass.

Description

technical field [0001] The invention belongs to the technical field of solid waste recycling. More specifically, it relates to a physical separation system for metal impurities in crushed waste glass. Background technique [0002] Due to its complex composition, low recycling value, and secondary pollution during the recycling process, the treatment and recycling of waste glass has not been valued by people. Among them, metal accounts for 1% to 3% of waste glass. Due to the low content, its resource recovery has been ignored by people, resulting in high metal impurities in the recycled waste glass, which greatly affects the subsequent in-depth resource utilization of waste glass. At the same time Also caused the waste of metal resources. A large amount of waste glass is exposed to the environment, occupying land resources, and there is also the risk of metal impurities polluting the environment. With the massive generation of construction waste, domestic waste, and electr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B02C21/00B02C23/08B02C23/14
CPCB02C21/00B02C23/08B02C23/14
Inventor 阮菊俊秦保家刘威奇梁颖欣
Owner SUN YAT SEN UNIV
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