Lightweight high-strength ceramic particles manufactured by using urban sludge and manufacturing method for lightweight high-strength ceramic particles

Abstract

The invention belongs to the technical field of sludge reclaiming resource utilization, and in particular relates to lightweight high-strength ceramic particles manufactured by using urban sludge and a manufacturing method for the lightweight high-strength ceramic particles. The method comprises the following steps of: crushing 30 to 50 parts of building garbage to obtain crushed building garbage; and mixing the crushed building garbage, 40 to 60 parts of urban sludge and 40 to 60 parts of potassium feldspar powder uniformly, roasting the mixture for 20 to 120 minutes at the temperature of between 1,150 and 1,500 DEG C, cooling, and thus obtaining the lightweight high-strength ceramic particles. The urban sludge, the building garbage and the potassium feldspar powder are mixed in a certain ratio and coordinated, so that the strength of the lightweight high-strength ceramic particles reaches 60 to 120MPa, and the ceramic particles have more excellent physical and mechanical properties compared with common natural stones. According to the ceramic particles and the manufacturing method, wastes can be changed into valuable, environmental pollution is improved, and the innocent, reduction and recycle principles of Chinese solid waste treatment are met; and the invention has remarkable economic benefit and social benefit.

Description

technical field [0001] The invention belongs to the technical field of resource recovery and utilization, and in particular relates to a light-weight and high-strength porcelain granule manufactured by utilizing municipal sludge and a manufacturing method thereof. Background technique [0002] With the acceleration of urbanization in my country and the improvement of sewage treatment rate, the amount of sludge produced by urban sewage treatment plants has also increased sharply. However, these sludges, which contain a large amount of heavy metals, pathogenic bacteria and organic pollutants, are discarded or simply landfilled without treatment, posing a serious threat to the ecological environment and human activities. [0003] At the same time, the amount of construction waste in my country has accounted for 30%-40% of the total urban waste. Based on the standard of 500-600 tons per 10,000 square meters, by 2020, my country will add about 30 billion square meters of construc...

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.