A Grinding Process That Can Improve the Strength of Phosphogypsum Ceramsite Lightweight Aggregate

Abstract

The invention provides a grinding process capable of improving the strength of phosphogypsum ceramsite lightweight aggregate, which includes the following steps: the first step: adding phosphogypsum ceramsite which accounts for 30% to 70% of the volume of the ball mill into the ball mill, and then continuing to the ball mill Add grinding balls accounting for 10-35% of the volume of the added phosphogypsum ceramsite, and add abrasives accounting for 10-20% of the volume of the added phosphogypsum ceramsite, start the ball mill for 15-25r / min, 20-60min ball milling; Step 2: Take out the material in the ball mill and filter it, collect the oversize material from the filter for three-stage screening, the middle layer is high-strength phosphogypsum ceramsite light aggregate. The invention can improve the cylinder compressive strength of the product and reduce the use of chemicals. The auxiliary materials used can be recycled and reused, which can reduce the processing cost. The recovery rate of the consumables used in the grinding process provided by the application is over 90%. The process is environmentally friendly and pollution-free, can effectively reduce the production cost of building materials enterprises, improve economic benefits, and the obtained products have good market application prospects.

Description

Technical field [0001] The present invention relates to the field of phosphate ceramics processing process, and more particularly to a grinding process capable of increasing the strength of the phosphite ceramics. Background technique [0002] With the requirements of national strategic emerging industries, the state has pushed the comprehensive utilization of large solid waste and tailings, and promoted the comprehensive utilization of industrial waste such as metallurgical slag, chemical residue, red mud, phospantine. There are many ways to comprehensively utilize phosphate, in which new building materials are one of the most effective ways. [0003] In order to consume a large amount of phospantium, more and more building materials enterprises use phosphite to produce high-dosing free gypsum ceramics to make lightweight and high-strength concrete, and is used to have certain restrictions in engineering structures and construction projects. Such as high-rise buildings, highway ...

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