Preparation method of cement superplasticizer

Abstract

The invention relates to a preparation method of a cement superplasticizer, which uses cement superplasticizer preparation equipment, the cement superplasticizer preparation equipment comprises a baseand a drying device, and the drying device is arranged on the upper surface of the base. According to the invention, the following problems existing in the preparation of the lignosulfonate water reducing agent at present are solved: when lignosulfonate water reducing agent liquid sprayed by a spraying device is subjected to drying treatment, the crystallized lignosulfonate water reducing agent formed after drying is not scraped and collected in time; the accumulation of crystallized water reducing agent is too thick, which affects the drying effect of subsequent water reducing agent liquid,the dried crystallized water reducing agent is directly collected without being ground and crushed again, so that the mixing effect of the water reducing agent and the concrete is influenced during use due to overlarge crystallized water reducing agent particles, therefore, the two components cannot be fully mixed, and the effect of the water reducing agent cannot be exerted.

Description

technical field [0001] The invention relates to the technical field of water reducers, in particular to a method for preparing cement high-efficiency water reducers. Background technique [0002] Water reducer is a concrete admixture that can reduce the amount of mixing water while maintaining the slump of concrete. Most of them are anionic surfactants, such as lignosulfonate, naphthalenesulfonate formaldehyde polymer, etc. After being added to the concrete mixture, it can disperse the cement particles, improve its workability, reduce the unit water consumption, improve the fluidity of the concrete mixture; or reduce the unit cement consumption and save cement. The present invention is mainly aimed at the manufacture of lignosulfonate water reducer. The raw material of lignosulfonate water reducer is lignin, which is generally extracted from coniferous wood. These three kinds of lignin monomers are polymerized, including: calcium lignosulfonate, sodium lignosulfonate and m...

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Problems solved by technology

[0003] At present, when the lignosulfonate water reducer is prepared, there are the following problems: when the lignosulfonate water reducer liquid sprayed by the spray device is dried, the crystalline wood formed after drying is not timely Sulfonate water reducer is collected by scraping, resulting in the accumulation of crystallized water reducer too thick and affecting the drying effect of the subsequent liquid water reducer, and the dried crystallized water reducer is directly collected without grinding and crushing again , this will affect the mixing effect of the superplasticizer and concrete due to the large particle size of the crystallized superplasticizer, so that the two cannot be fully mixed, resulting in the problem that the effect of the superplasticizer cannot be exerted

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