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A kind of electrolytic manganese slag-based paste filling material and preparation method thereof

An electrolytic manganese slag-based paste and electrolytic manganese slag-based technology are applied in the field of electrolytic manganese slag-based paste filling materials, which can solve the problems of affecting popularization and use and high filling costs, and achieve low heavy metal leaching concentration, good filling fluidity, and low energy consumption. can low effect

Active Publication Date: 2019-04-30
CHINA THREE GORGES UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Paste filling technology is a relatively advanced technology for dealing with gobs at present, but due to the need to add ordinary cement as the cementitious material for paste filling, the filling cost is too high, which greatly affects the popularization and use of this technology

Method used

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  • A kind of electrolytic manganese slag-based paste filling material and preparation method thereof
  • A kind of electrolytic manganese slag-based paste filling material and preparation method thereof
  • A kind of electrolytic manganese slag-based paste filling material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] An electrolytic manganese slag-based paste filling material is made of the following raw materials in parts by weight: 75% of the original electrolytic manganese slag, 5% of carbide slag, and 20% of electrolytic manganese slag-based cement (the electrolytic manganese slag-based cement is made of 78% finely ground electrolytic manganese slag powder, 10% boiling slag, 3% cement kiln dust, 5% phosphorus slag powder, 3% petroleum coke desulfurization ash and 1.0% additive); the moisture content of the filling material is 30%.

[0015] It is taken from electrolytic manganese slag of a certain enterprise, dried and ground, and the specific surface area is 770.3m 2 / kg, its chemical composition and mineral composition are as follows.

[0016] Table 1 Chemical composition of electrolytic manganese slag

[0017]

CaO

SiO 2

al 2 o 3

MgO

SO 3

Fe 2 o 3

K 2 o

MnO

Cr 2 o 3

P 2 o 5

TiO 2

content

18...

Embodiment 2

[0021] An electrolytic manganese slag-based paste filling material is made of the following raw materials in parts by weight: 80% of the original electrolytic manganese slag, 4% of calcium carbide slag, and 16% of electrolytic manganese slag-based cement (the electrolytic manganese slag-based cement is made of Ground electrolytic manganese slag powder 65%, boiling slag 10%, cement kiln dust 10%, phosphorus slag powder 11%, petroleum coke desulfurization ash 3% and admixture 1.0%); the moisture content of the filling material is 26%.

[0022] Firstly, use finely ground electrolytic manganese slag powder as the main raw material, add boiling slag, cement kiln dust, phosphorus slag powder, petroleum coke desulfurization ash, and additives in a specified proportion, and stir for 10 to 20 minutes to make it evenly mixed to form electrolytic manganese slag base binder. Mix the original electrolytic manganese slag, calcium carbide slag, and electrolytic manganese slag-based cement in...

Embodiment 3

[0025] An electrolytic manganese slag-based paste filling material is made of the following raw materials in parts by weight: 86% of the original electrolytic manganese slag, 3% of calcium carbide slag, and 11% of electrolytic manganese slag-based cement (the electrolytic manganese slag-based cement is made of 60% ground electrolytic manganese slag powder, 23% boiling slag, 3% cement kiln dust, 6% phosphorous slag powder, 5% petroleum coke desulfurization ash and 3.0% admixture); the moisture content of the filling material is 20%.

[0026] Firstly, use finely ground electrolytic manganese slag powder as the main raw material, add boiling slag, cement kiln dust, phosphorus slag powder, petroleum coke desulfurization ash, and additives in a specified proportion, and stir for 10 to 20 minutes to make it evenly mixed to form electrolytic manganese slag base binder. Mix the original electrolytic manganese slag, calcium carbide slag, and electrolytic manganese slag-based cement in ...

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Abstract

The invention provides an electrolytic manganese residue-based ointment filling material which comprises original electrolytic manganese residues, carbide slag and an electrolytic manganese residue cementing agent, wherein the electrolytic manganese residue cementing agent comprises ground electrolytic manganese residue powder, boiling furnace slag, cement kiln ash, phosphorus slag powder, petroleum coke desulfurized fly ash and additives. A preparation method of the material comprises the following steps: by taking the original electrolytic manganese residues as a basic raw material, adding the carbide slag and the electrolytic manganese residue cementing agent, rapidly stirring for 10-20 minutes, adding water till the water content of the filling material meets a provided value, and further stirring for 10-30 minutes, thereby obtaining the electrolytic manganese residue-based ointment filling material. Compared with a cement type mine filling material, the electrolytic manganese residue-based ointment filling material provided by the invention is good in filling mobility, relatively rapid in strength increase, good in slight swelling property and low in heavy metal leaching concentration.

Description

technical field [0001] The patent of the invention relates to an electrolytic manganese slag-based paste filling material, which is based on the original electrolytic manganese slag, mixed with electrolytic manganese slag-based cement, calcium carbide slag, and an appropriate amount of water to obtain an electrolytic manganese suitable for gob filling. Slag-based paste filling material. Background technique [0002] Electrolytic manganese slag is a weakly acidic industrial waste containing a certain amount of dihydrate gypsum, which is composed of manganese carbonate-based rhodochrosite, which is discharged after grinding, acidification, oxidation, neutralization and electrolytic extraction of metal manganese. Electrolytic manganese slag contains extremely high concentrations of sulfate, ammonia nitrogen, and manganese ions, and the enrichment of heavy metal ions such as selenium, lead, and nickel will form a highly polluted leachate. my country is a major producer of elect...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/00C04B18/14
CPCC04B18/144C04B28/00C04B2111/00663C04B2201/50C04B18/0481C04B18/142C04B18/162C04B18/145C04B2103/0068C04B22/002Y02W30/91
Inventor 黄绪泉姜明明赵小蓉
Owner CHINA THREE GORGES UNIV
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