Method for preparing glass from solid wastes by high-temperature melting

Abstract

The invention discloses a method for preparing a glass body from solid wastes by high-temperature melting. The method comprises the following steps: analyzing the components of the solid wastes, and analyzing the content of silicon, calcium, iron and aluminum contained in the solid wastes; comparing the analysis results with elements required for preparing the glass, and calculating the demand quantity of the raw materials corresponding to the glass body, wherein the glass comprises the elements of silicon, calcium, iron and aluminum; weighing the required raw materials according to the demandquantity of the raw materials containing various elements; uniformly mixing the solid wastes with the proportioned raw materials to form a first mixture; carrying out compression molding on the firstmixture to form a first intermediate with the water content ranging from 12% to 15%; precipitating the first intermediate to form a second intermediate; carrying out high-temperature melting on the second intermediate for 90-120 min at the temperature of 1250-1350 DEG C to form a third intermediate; and carrying out water quenching on the third intermediate to form the lattice body. The method has the effects of treating waste with waste, turning waste into wealth and reducing the cost.

Description

technical field [0001] The invention relates to the technical field of resource utilization of solid waste, in particular to a method for making solid waste into a glass body through high-temperature melting. Background technique [0002] As people's awareness of environmental protection is getting stronger and stronger, the harmless treatment of municipal garbage and the treatment of slag or other solid waste generated in the process of industrial production have also attracted more and more attention. [0003] Most of the existing high-temperature melting methods for disposing of industrial solid waste use plasma high-temperature melting technology. However, for the plasma high-temperature melting technology, the maximum disposal scale of a single unit in China is only 50t / d at present, and the disposal capacity is too low to achieve large-scale disposal. Moreover, the largest consumable for plasma high-temperature melting is the plasma torch, which needs to be replaced e...

AI Technical Summary

Problems solved by technology

However, for the plasma high-temperature melting technology, the maximum disposal scale of a single unit in China is only 50t / d at present, and the disposal capacity is too low to achieve large-scale disposal.

And the largest consumable for plasma high-temperature melting is the plasma torch, which needs to be replaced every 400 hours, and the operating cost cannot be controlled, reaching 2,000 yuan / ton

In addition, the co-processing of cement kilns has relatively high requirements on the industrial solid waste entering the kiln, and the content of heavy metals such as lead, mercury, cadmium and chromium, and CL- are strictly controlled, and the annual disposal volume is limited.

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