Grinding process capable of improving strength of ardealite ceramsite lightweight aggregate

Abstract

The invention provides a grinding process capable of improving the strength of ardealite ceramsite lightweight aggregate. The grinding process comprises the following steps that 1, ardealite ceramsiteaccounting for 30-70% of the volume of a ball mill is added into the ball mill, then grinding balls accounting for 10-35% of the volume of the added ardealite ceramsite and a grinding agent accounting for 10-20% of the volume of the added ardealite ceramsite continue to be added into the ball mill, and the ball mill is started to conduct ball milling at the speed of 15-25 r / min for 20-60 minutes;and 2, materials in the ball mill are taken out and filtered, filtered oversize products are collected and subjected to three-stage screening, and the middle layer is the high-strength ardealite ceramsite lightweight aggregate. According to the grinding process, the cylinder compressive strength of products can be improved, and use of chemical agents is reduced; the used auxiliary materials can be recycled, and thus the processing cost can be reduced; the recovery rate of consumables used in the grinding process reaches 90% or above, the process is environmentally friendly and free of pollution, the production cost of building material enterprises can be effectively reduced, and the economic benefits are increased; and the obtained products have good market application prospects.

Description

technical field [0001] The invention relates to the technical field of phosphogypsum ceramsite processing technology, in particular to a grinding process capable of improving the strength of phosphogypsum ceramsite light aggregate. Background technique [0002] Following the development requirements of the national strategic emerging industries, the country is vigorously promoting the comprehensive utilization of bulk solid waste and tailings, and promoting the comprehensive utilization of industrial waste such as metallurgical slag, chemical slag, red mud, and phosphogypsum. There are many ways to comprehensively utilize phosphogypsum, among which the production of new building materials is one of the most effective ways. [0003] In order to consume a large amount of phosphogypsum, more and more building materials companies use phosphogypsum to produce high-volume unfired gypsum ceramsite to produce lightweight and high-strength concrete, and are used in engineering struct...

AI Technical Summary

Problems solved by technology

[0006] Through the above patents, it is found that when phosphogypsum is used to produce ceramsite products or building materials, it is necessary to add a variety of chemical agents to improve its strength, and some even need to add additional glass fibers to improve the structural properties of the material, which undoubtedly increases the production cost. , and the ingredients and types of additives are complex and diverse, the product quality is unstable and difficult to control, which is not conducive to industrial production