Highly effective cement grinding aid

Abstract

An efficient cement grinding aid relates to a cement grinding aid. The main purpose of the invention is to resolve the existing problems in cement production that the clinker consumption is large, energy consumption is large and production cost is high as well as the product cement has weak compressive strength etc. The raw material ratio of the invention is that aluminum silicate or aluminum sulfate is 950-1,050 kg, anhydrous sodium sulfate is 900-1,000 kg, triethanolamine is 6-10 kg, and calcium oxide is 40-45 kg; the aluminum silicate or the aluminum sulfate, the anhydrous sodium sulfate and the calcium oxide are grinded and mixed together, and during mixing, the triethanolamine is sprayed. The invention has the advantages that the application in cement production can not only reduce the clinker consumption by about 15%, save energy, lower the production cost; but also can improve waste utilization rate, the production, cement stability, decrease free lime in cement, improve the compressive strength of the cement that achieving 17-19 MPa within 3 days and 39-42 MPa within 28 days.

Description

[technical field] [0001] The invention relates to a cement grinding aid. [Background technique] [0002] At present, in the production of cement, the ratio of clinker to water slag is generally 78:20, and there is another 2% gypsum. The amount of clinker is large, the energy consumption is high, and the production cost is high; the compressive strength of the produced cement is poor, generally 3 days. 11Mpa, 33Mpa in 28 days. [Content of the invention] [0003] The purpose of the present invention is to provide a high-efficiency cement grinding aid, which can reduce the amount of clinker used in cement production, improve the stability of cement, and increase the compressive strength of cement for 3 days to 28 days. [0004] The object of the present invention is achieved like this: its raw material ratio is 950-1050 kilograms of aluminum silicate or aluminum sulfate, 900-1000 kilograms of anhydrous sodium sulfate, 6-10 kilograms of triethanolamine, 40-45 kilograms of cal...

AI Technical Summary

Problems solved by technology

[0002] At present, in the production of cement, the ratio of clinker to water slag is generally 78:20, and there is another 2% gypsum. The amount of clinker is large, the energy consumption is high, and the production cost is high; the compressive strength of the produced cement is poor, generally 3 days. 11Mpa, 33Mpa in 28 days