Cement calcine-free quick coagulator and its production process

Abstract

The invention discloses a cement baking-free quick-setting agent and the process for preparation, wherein the quick-setting agent is prepared from the raw materials (by weight ratio) of alkaline metal hydroxide 1-10%, soluble carbonates 10-30%, aluminates 15-40%, lemon acid 2-7%, fly ash 20-35% and bone coal 20-35% through steps of mixing raw materials, disintegrating, grinding and sieving.

Description

technical field [0001] The invention relates to an accelerator, in particular to a cement non-burning accelerator and a production process thereof. Background technique [0002] In building construction, a certain amount of quick-setting agent is often added to concrete, so that the prepared concrete will set and harden in a short period of time after being mixed with water, and the strength will be established as soon as possible. The concrete mixed with accelerator is suitable for spraying construction technology and Quick repair and water stop plugging project. At present, the commonly used accelerators are calcined accelerators. The raw materials are mainly bluestone with calcium oxide as the main component, bauxite with alumina as the main component, and anthracite. Among them, the anthracite mainly uses silicon dioxide and carbon dioxide in the ash after calcination. The ash content of aluminum and anthracite is generally 25%. After the above raw materials are ground ...

AI Technical Summary

Problems solved by technology

At present, the commonly used accelerators are calcined accelerators. The raw materials are mainly bluestone with calcium oxide as the main component, bauxite with alumina as the main component, and anthracite. Among them, the anthracite mainly uses silicon dioxide and carbon dioxide in the ash after calcination. The ash content of aluminum and anthracite is generally 25%. After the above raw materials are ground into powder, sodium carbonate is added and mixed to make a spherical shape, which is put into a calciner for calcination. Finished coagulant; the production process of the above-mentioned calcined accelerator is quite complicated, requiring about 20 sets of equipment, and the power consumption is 214KW. It requires more than a dozen processes such as batching, grinding, balling, calcination, filling, and re-grinding. Dust, noise pollution, and environmental pollution are generated during the production process, which damages the health of the operators, and the labor intensity is high, and the defects of the calcined accelerator are poor adaptability, unstable quality, large rebound rate, etc.