Lightweight high-strength porcelain granule manufactured by utilizing fly ash and manufacturing method thereof

Abstract

The invention belongs to the technical field of sludge recovery and resource utilization and in particular relates to a lightweight high-strength porcelain granule manufactured by utilizing fly ash and a manufacturing method thereof. The manufacturing method comprises the following steps: firstly grinding 30-50 parts of construction wastes to obtain ground construction wastes; and uniformly mixing the ground construction wastes with 60-80 parts of fly ash and 40-60 parts of potassium feldspar powder, then roasting the mixture at 1150-1500 DEG C for 20-120 minutes and cooling the product to obtain the lightweight high-strength porcelain granule. According to the invention, by virtue of mixing the fly ash, the construction wastes and the potassium feldspar powder in a certain proportion to give play to the synergistic actions among the materials, the strength of the manufactured lightweight high-strength porcelain granule is as high as 60-120MPa; the lightweight high-strength porcelain granule has better physical and mechanical properties than the common natural stones; and the preparation method provided by the invention not only can be used for turning wastes into wealth, but also is beneficial to reduction of environmental pollution, conforms to the national harmlessness, quantitative reduction and resource principles in solid waste treatment and has obvious economic and social benefits.

Description

technical field [0001] The invention belongs to the technical field of resource recovery and utilization, and in particular relates to a light-weight high-strength porcelain particle made from fly ash and a manufacturing method thereof. Background technique [0002] Fly ash is the fine ash collected from the flue gas after coal combustion. Fly ash is the main solid waste discharged from coal-fired power plants. Fly ash is one of the largest industrial wastes in my country. With the development of the power industry, the discharge of fly ash from coal-fired power plants is increasing year by year. If a large amount of fly ash is not treated, it will generate dust and pollute the atmosphere; if it is discharged into the water system, it will cause river silting, and the toxic chemicals in it will also cause harm to human beings and organisms. [0003] At the same time, the amount of construction waste in my country has accounted for 30%-40% of the total amount of urban waste....

AI Technical Summary

Problems solved by technology

However, this manufacturing method needs to dehydrate the sewage first, and the production efficiency is low, resulting in a waste of resources and increasing the cost. Moreover, because the technical solution only uses sludge as a component and does not contain chemical components that can improve product strength, it can only be used The ceramsite with low strength and poor mechanical properties can be obtained, and the ceramic particles with light weight, high strength and good mechanical properties cannot be obtained.