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A kind of preparation method of filling gel material

A cementing material and dry method technology, which is applied to the preparation of filling cementitious materials from lime sulfur residue and desulfurization ash. Using steel slag and slag, it can solve the problems that have not been applied on a large scale, and achieve good social and economic benefits. High waste slag content, the effect of improving the strength of the system

Active Publication Date: 2021-05-11
ZUNHUA ZHONGHUAN SOLID WASTE COMPREHENSIVE UTILIZATION CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, its resource application is still in the research stage, and large-scale application has not yet been carried out.

Method used

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  • A kind of preparation method of filling gel material

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016]According to weight, 50% of the stone sulfur residue and 50% dry method, semi-dry deionium mix, calcination at 300 ° C for 50 min to obtain modified slag; steel slag, slag, modified slag, 26: 68: 6 ratio Grinding to a specific surface area 412m2 / kg gave gel material; the strength test was performed in accordance with GB / T17671-1999 "Cement Sand Intensity Test Method (ISO)".

Embodiment 2

[0018]According to the weight, 60% of the stone sulfur residue and 40% dry method, semi-dry detholar mixture, calcined at 450 ° C for 10 min to obtain modified slag; steel slag, slag, modified slag, 43: 55: 2 ratio Grinding to a specific surface area 496m2 / kg gave gel material; the strength test was performed in accordance with GB / T17671-1999 "Cement Sand Intensity Test Method (ISO)".

Embodiment 3

[0020]According to the weight, 70% of the stone sulfur residue and 30% dry method, semi-dry detholar mixture, calcined at 380 ° C for 30 min to obtain modified slag; steel slag, slag, modified slag Press 50:40:10 ratio Grinding to a specific surface area 539m2 / kg gave gel material; the strength test was performed in accordance with GB / T17671-1999 "Cement Sand Intensity Test Method (ISO)".

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Abstract

The invention provides a preparation method of filling cementitious material. The specific steps are as follows: mix 50% to 70% of lime sulfur mixture residue with 30% to 50% of dry and semi-dry desulfurization ash by weight, and mix them at 300 Calcining at ℃~450℃ to obtain modified slag; grinding steel slag, slag and modified slag according to the ratio of 30~50:40~70:5~20 to obtain cementitious material. This method has the characteristics of simple process, low energy consumption, high content of waste slag, and low production cost. It realizes the resource utilization of various industrial waste residues such as steel slag, slag, lime sulfur mixture residue and desulfurization ash, and also solves the problem of waste residue. The problem of land occupation reduces the pollution to the environment.

Description

Technical field[0001]The present invention relates to a method of preparation of a filling product, and a method of using steel slag, slag, a stone sulfurge residue and a desulfurization ash is prepared.Background technique[0002]Steel slag, slag is the solid by-product of steel enterprises in steelmaking process and ironmaking process. At present, my country produces 100 million tons of steel slag, 200 million tons of slag every year. Steel slag, slag has passed high temperature smelting and water quenching process, so there is a certain hydration gelation activity. At present, the resource utilization of slag is well used, and the slag is mainly used to produce the drum micropowder. It has been used as a reactive mixture. It has become an important building engineering raw material for cement and concrete. Steel slag due to the presence of problems such as slag, high hardness, and stability, only about 30%. How to improve the utilization of steel slag has always been the hot proble...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B7/24C04B7/147C04B7/14
CPCC04B7/14C04B7/147C04B7/24Y02P40/10
Inventor 刘振齐张志国张益康李超关中正赵风清
Owner ZUNHUA ZHONGHUAN SOLID WASTE COMPREHENSIVE UTILIZATION CO LTD
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