Cemented filling material for mines as well as preparation method and application thereof

A technology for cementing filling materials and mines, which is applied to fillings, mining equipment, earthwork drilling and mining, etc. It can solve problems such as poor filling effect, poor mechanical properties, and subsidence, and achieve reduced slump, strong acid resistance, and good cementation performance Effect

Active Publication Date: 2021-12-07
北科蕴宏环保科技(北京)有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing cemented filling materials generally have defects such as poor mechanical prope

Method used

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  • Cemented filling material for mines as well as preparation method and application thereof
  • Cemented filling material for mines as well as preparation method and application thereof
  • Cemented filling material for mines as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0032] Example 1

[0033] A mine adapter filling material, including the following mass raw materials: 11 desulfurized gypsum, 1 ichrite ore, 100 gangue, 6 fly ash, 16 矿渣, 16 copper-containing waste, 1.5 parts of water reducer 50 parts of water. Among them, the molar ratio of metal copper in the iron oxide and the copper-containing waste in the hematite is 1: 0.5.

[0034] Preparation:

[0035] 1) Weigh raw material according to the above mass;

[0036] 2) Mix the hematite with copper-containing waste, calcined at a temperature of 780 ° C, and pulverized to obtain a mixture powder;

[0037] 3) Mix the desulfurized gypsum, slag, fly ash, water reduction agent to obtain a mixed powder, then add meteite and mixture, mix well, dry, pulverized, and the mine is bonded.

Example Embodiment

[0038] Example 2

[0039] A mine adhesive filling material, including the following mass raw materials: 15 desulfurization gypsum, 15 ichrite ore, 120 gangue, 8 drums, 14 pieces containing copper, 2 copies, 2 parts of water reducer 60 parts of water. Among them, the molar ratio of metal copper in the iron oxide and the copper-containing waste in the hematite is 1: 0.4.

[0040] Preparation:

[0041] 1) Weigh raw material according to the above mass;

[0042] 2) Mix the hematite with copper-containing waste, calcined at a temperature of 800 ° C, and pulverized to obtain a mixture powder;

[0043] 3) Mix the desulfurized gypsum, slag, fly ash, water reduction agent to obtain a mixed powder, then add meteone and mixture, mix well mixed, allowed 12h, dry, pulverized, and the mine is adhesive.

Example Embodiment

[0044] Example 3

[0045] Mine adapter filling materials, including the following mass raw materials: 4 desulfurization gypsum, 6 ichrite ore, 80 gangue, 3 fly ash, 18 slag, 1 copper-containing waste, 1 water reducer 40 parts of water. Among them, the molar ratio of metal copper and the metal copper in the copper-containing waste in the hematite is 1: 0.6.

[0046] Preparation:

[0047] 1) Weigh raw material according to the above mass;

[0048] 2) Mix the hematite with copper-containing waste, calcined at a temperature of 750 ° C, and pulverized to obtain a mixture powder;

[0049] 3) Mix the desulfurized gypsum, slag, fly ash, water reduction agent to obtain a mixed powder, then add meteite and mixture, mix well, dry, pulverized, and the mine is bonded.

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Abstract

The invention discloses a cemented filling material for mines as well as a preparation method and application thereof, and belongs to the technical field of cemented filling materials. The cemented filling material comprises the following raw materials in parts by mass: 8-15 parts of desulfurized gypsum, 6-15 parts of hematite, 80-120 parts of gangue, 3-8 parts of fly ash, 24-28 parts of slag, 14-18 parts of copper-containing waste, 1-2 parts of a water reducing agent and 40-60 parts of water. The hematite and the copper-containing waste are subjected to calcination treatment and then mixed with the remaining raw materials, and the cemented filling material for the mine is obtained. According to the method, the toxic heavy metal copper does not re-seep while the copper-containing waste is reutilized, and other raw materials are used so as to effectively improve the mechanical property of the mine cemented filling material.

Description

technical field [0001] The invention belongs to the technical field of cemented filling materials, and in particular relates to a cemented filling material for mines, a preparation method and application thereof. Background technique [0002] Hazardous waste refers to waste that has various toxicity, corrosiveness, flammability, explosiveness, reactivity and infectivity, and will pose serious hazards to the ecological environment and human health. If it is not properly handled, stored, transported, treated and disposed of , will pose a serious threat to human health and even regional environmental security. With the continuous development of industrial society, hazardous waste pollution incidents occur frequently, which has seriously restricted the sustainable development of social economy. Hazardous waste can affect the environment as well as human health if not handled properly. [0003] With the rapid development of the economy and the continuous expansion of industrial...

Claims

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Application Information

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IPC IPC(8): C04B28/14E21F15/00
CPCC04B28/144E21F15/005C04B2111/00724C04B2201/50C04B18/12C04B18/08C04B18/141C04B18/144C04B24/16
Inventor 张宁黄晓燕张静文
Owner 北科蕴宏环保科技(北京)有限公司
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