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Superfine iron-based carbon-free cementing material as well as preparation method and application thereof

A technology of carbon glue and fine iron, which is applied in the direction of cement production, can solve the problems of tailings pond hazards and other problems, and achieve the effect of improving the use performance

Inactive Publication Date: 2021-10-29
安徽国矿新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 2. Tailings ponds are also a major source of danger

Method used

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  • Superfine iron-based carbon-free cementing material as well as preparation method and application thereof
  • Superfine iron-based carbon-free cementing material as well as preparation method and application thereof
  • Superfine iron-based carbon-free cementing material as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042]Embodiment 1: An ultrafine iron-based carbon-free cementitious material, comprising the following components by weight: 30 parts by weight of iron tailings, 30 parts by weight of S95 mineral powder, ground to obtain a specific surface area of ​​705m 2 / kg ultrafine mineral powder; fly ash: 5 parts by weight, specific surface area 705m 2 / kg; 1 part by weight of gelling agent, 0.1 part by weight of grinding aid, 1 part by weight of activator, and the remaining parts by weight are binding agent; the weight ratio of the gelling agent is phosphogypsum powder: silicate: lime powder According to: borax=5:4:4:3 composite gelling agent; said grinding aid is sodium polycarboxylate in weight ratio: triethanolamine: glass wool: triethanolamine oleic acid soap=3:3:3: 1 compound grinding aid; the active agent is a compound active agent whose weight ratio is sodium silicate: barium silicate: sodium chromate=2:3:2; the described binder is a grinding ceramic powder with a weight ratio o...

Embodiment 2

[0043] Embodiment 2: An ultrafine iron-based carbon-free cementitious material, including the following components by weight: 70 parts by weight of iron tailings, 50 parts by weight of S95 mineral powder, ground to obtain a specific surface area of ​​730m 2 / kg ultrafine mineral powder; fly ash: 15 parts by weight, specific surface area 730m 2 / kg; 5 parts by weight of gelling agent, 0.5 parts by weight of grinding aid, 2 parts by weight of active agent, and the remaining parts by weight are binding agent; the weight ratio of the gelling agent is phosphogypsum powder: silicate: lime powder According to: borax=5:5:5.5:4 composite gelling agent; said grinding aid is sodium polycarboxylate in weight ratio: triethanolamine: glass wool: triethanolamine oleic acid soap=3:5:4: 1.5 composite grinding aid; the active agent is a composite active agent with a weight ratio of sodium silicate: barium silicate: sodium chromate=2:5:4; the described binder is a grinding ceramic powder with a ...

Embodiment 3

[0044] Embodiment 3: An ultrafine iron-based carbon-free cementitious material, including the following components by weight: 50 parts by weight of iron tailings, 45 parts by weight of S95 ore powder, ground to obtain a specific surface area of ​​725m 2 / kg ultrafine mineral powder; sulfur-fixed ash: 10 parts by weight; specific surface area 730m 2 / kg; 2 parts by weight of the gelling agent, 0.3 parts by weight of the grinding aid, 1.5 parts by weight of the active agent, and the remaining parts by weight are binders; the weight ratio of the gelling agent is phosphogypsum powder: Silicate: lime powder according to: borax=5:4.5:4.5:4 composite gelling agent; described grinding aid is polycarboxylate sodium in weight ratio: triethanolamine: glass wool: triethanolamine oleic acid soap= 2:2:2:1 composite grinding aid; the active agent is a composite active agent whose weight ratio is sodium silicate: barium silicate: sodium chromate = 1:2:2; the binder is The weight ratio is the...

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Abstract

The invention relates to a superfine iron-based carbon-free cementing material as well as a preparation method and application thereof. The superfine iron-based carbon-free cementing material comprises the following components in parts by weight: 60-120 parts of an exciting agent with a specific surface area of greater than 700 m<2> / kg, 5-15 parts of sulfur fixation ash or fly ash and 8 parts by weight of other auxiliary agents, wherein the exciting agent comprises, by weight, 30-70 parts of iron tailings and 30-50 parts of S95 mineral powder which are ground to obtain superfine mineral powder with the specific surface area of greater than 700 m<2> / kg; and the other auxiliary agents comprise an active agent, a binding agent, a grinding aid and a gelling agent.

Description

technical field [0001] The invention belongs to the technical field of new environmental protection materials and relates to the utilization of industrial solid waste, in particular to an ultra-fine iron-based carbon-free gelling material and its preparation method and application. Background technique [0002] Tailings are the main industrial solid waste in resource-based cities, and there are major environmental problems and safety hazards, mainly including: [0003] 1. Tailings are pollution sources that cause major environmental problems [0004] Its prominent manifestations are land occupation, destruction of vegetation, land degradation, desertification, dust pollution, water pollution, etc. The particle size of the tailings is relatively fine, long-term stockpiling, serious weathering phenomenon, and secondary dust generation. The dust formed by the tailings is flying around in the surrounding area. The "yellow dragon" for several miles polluted the surrounding soil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B7/26C04B7/24C04B7/21C04B7/17C04B7/36
CPCC04B7/243C04B7/21C04B7/17C04B7/1535C04B7/36Y02P40/10
Inventor 徐宁鲁幼勤姜其斌蔡宇范凯
Owner 安徽国矿新材料科技有限公司