Method for preparing low-cost filling cementing material by compositely exciting multiple solid wastes

A gelling material and composite excitation technology, which is applied in the fields of computer material science, instrumentation, chemical process analysis/design, etc., can solve problems such as difficult to obtain the optimal formula of composite excitation agent, and achieve the effect of improving economic and social benefits

Pending Publication Date: 2020-08-07
UNIV OF SCI & TECH BEIJING +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disclosed activator materials and proportions are limited to specific purposes and conditions, and are not suitable for the development of multi-sol

Method used

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  • Method for preparing low-cost filling cementing material by compositely exciting multiple solid wastes
  • Method for preparing low-cost filling cementing material by compositely exciting multiple solid wastes
  • Method for preparing low-cost filling cementing material by compositely exciting multiple solid wastes

Examples

Experimental program
Comparison scheme
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Example Embodiment

[0058] Such as figure 1 As shown, the method for preparing low-cost filling cementitious materials from composite excitation multiple solid wastes according to the present invention includes the following steps:

[0059] Step 101: Select the base stimulant and base stimulant and the corresponding formula range, and quickly optimize them respectively to obtain optimized formulas of the base stimulant and base stimulant.

[0060] In view of the available solid waste resources, select the salt-based activator with the help of engineering experience, and carry out the orthogonal test of the salt-based activator under the high temperature curing of 40℃ and humidity ≥95%, and use the range analysis to carry out the formulation of the salt-based activator optimization.

[0061] The base activator is mainly sulfate activator, and a small amount of alkali activator is added. Sulfate activators include industrial by-product gypsum, such as desulfurized gypsum, fluorogypsum, phosphogypsum, and...

Example Embodiment

[0078] Example

[0079] 1. Quick optimization of the formula of salt-based stimulator

[0080] (1) According to the types of solid waste resources that can be used, with the help of engineering experience or trial and error, select and determine the range of salt-based activators and formulas, and analyze the physical and chemical properties of solid waste resources and activators.

[0081] (2) Orthogonal design is carried out according to the formula range of salt-based activator, and the 3d and 7d strength orthogonal tests of the cemented filling body are carried out under the curing of 40℃ high temperature and humidity ≥95% to obtain the test results of the filling body strength and expansion rate;

[0082] (3) According to the orthogonal test results of the strength of the filling body of the salt-based stimulating cementitious material, the range analysis was used to quickly optimize the formulation of the salt-based stimulant for the 3d and 7d strength of the cemented filling bod...

Example Embodiment

[0101] Example one

[0102] According to the whole tailings of Zhongguan Iron Mine, the method for rapid optimization of the filling cementitious material for the subsequent filling method mining in the Zhongguan Iron Mine stage of compound excitation of multiple solid wastes includes the following steps:

[0103] 1. Quick optimization of the formulation of salt-based stimulating gelling materials

[0104] According to Zhongguan Iron Mine’s full tailings filling aggregate, desulfurization gypsum is selected based on experience as the main activator, cement clinker is the auxiliary activator, and industrial Glauber's salt is added to stimulate the potential activity of slag powder, and high temperature curing conditions are used for cement strength Experiment to quickly obtain the optimized formula of the base stimulant. figure 2 It is the particle size distribution curve of Handan Iron and Steel's slag powder in the embodiment of the present invention, and its slag differential fine...

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Abstract

The invention discloses a method for preparing a low-cost filling cementing material by compositely exciting multiple solid wastes, and belongs to the technical field of filling mining. The method comprises the following steps: selecting a salt-based excitant, a base excitant and corresponding formula ranges, and respectively and quickly optimizing to obtain optimized formulas of the salt-based excitant and the base excitant; obtaining the proportion of the composite excitant according to the optimized formula, and respectively establishing relation models of the strength and the volume expansion rate of the filling body of the filling cementing material and the cost of the filling cementing material and the proportion of the composite excitant; establishing a composite excitant proportionoptimization model based on the relation model and solving the model to obtain a composite excitant optimization formula; and preparing the low-cost cementing material according to the optimized formula of the composite excitant. According to the method, the optimal formula of the composite excitant can be rapidly obtained for complex multi-solid-waste resources, so that the prepared low-cost filling cementing material is utilized in filling mining, and remarkable economic benefits and environmental protection benefits can be obtained.

Description

technical field [0001] The invention relates to the technical field of filling and mining of various solid waste resources, in particular to a method for preparing a low-cost filling gel material by compounding multiple solid wastes. Background technique [0002] With the rapid development of my country's national economy and the continuous development of resources, high-grade and good-condition resources are becoming increasingly exhausted, and more and more deep-buried, high-stress and flood-difficult deposits are being mined. For safety, environmental protection and green mining and clean production, the filling and filling mining method is the first choice. The filling and filling mining method has complex mining process, low production capacity and high mining cost. Therefore, the development and utilization of low-cost and high-performance filling cementitious materials is the only way to improve the economic and environmental benefits of filling mining. [0003] In ...

Claims

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Application Information

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IPC IPC(8): G16C20/10G16C20/70G16C60/00
CPCG16C60/00G16C20/10G16C20/70
Inventor 吴凡温震江杨晓炳翟淑花李胜辉高谦尹升华巴蕾韦寒波胡亚军郭斌涂光富
Owner UNIV OF SCI & TECH BEIJING
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