Domestic sludge ash-based fire region roadway blocking material and preparation method thereof

A technology for domestic sludge and plugging materials, which is applied in the field of coal mine construction to achieve the effects of reducing sludge volume, high early strength and simplifying the conveying process

Active Publication Date: 2018-07-20
HENAN INST OF ENG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention proposes a domestic sludge ash-based roadway plugging material in a fire area and its preparation method, which solves the limitations of the traditional plugging materials. In the mine fire control work, there is an urgent need for an easy-to-construct, high-temperature-resistant , can be quickly constructed, and can still ensure airtightness under the action of mine pressure The technical problem of the roadway sealing material in the fire zone

Method used

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  • Domestic sludge ash-based fire region roadway blocking material and preparation method thereof
  • Domestic sludge ash-based fire region roadway blocking material and preparation method thereof
  • Domestic sludge ash-based fire region roadway blocking material and preparation method thereof

Examples

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Comparison scheme
Effect test

Embodiment 1

[0036] A domestic sludge ash-based fire zone roadway sealing material, comprising the following raw materials in parts by weight: 20 parts of Portland cement clinker, 15 parts of aluminate cement, 15 parts of domestic sludge ash, 55 parts of coke gemstones, poly 0.06 parts of carboxylic acid water reducer, 0.1 part of naphthalene-based water reducer, 0.01 part of triethanolamine, 0.4 part of calcium chloride, 0.6 part of dihydrate gypsum, 0.5 part of aluminum sulfate, 0.06 part of polypropylene fiber, 0.12 part of chopped basalt fiber and 80 parts of water.

[0037] Al in aluminate cement 2 o 3 The content of the aluminate cement is 50 wt%, and the specific surface area of ​​the aluminate cement is ≥350 m 2 / kg; the polycarboxylate superplasticizer is a powdery solid, the water reducing rate is not less than 25%, the bleeding ratio is not more than 60%, and the specific surface area is ≥ 200m 2 / kg; the naphthalene-based water reducer is a powdery solid with a sodium sulfat...

Embodiment 2

[0049] A domestic sludge ash-based roadway plugging material in a fire area, comprising the following raw materials in parts by weight: 15 parts of Portland cement clinker, 10 parts of aluminate cement, 20 parts of domestic sludge ash, 60 parts of coke gemstone, poly 0.1 part of carboxylic acid water reducer, 0.4 part of naphthalene-based water reducer, 0.015 part of triethanolamine, 0.7 part of calcium chloride, 1 part of dihydrate gypsum, 0.2 part of aluminum sulfate, 0.03 part of polypropylene fiber, 0.06 part of chopped basalt fiber and 100 parts of water.

[0050] Al in aluminate cement 2 o 3 The content of aluminate cement is 60 wt%, and the specific surface area of ​​aluminate cement is ≥350 m 2 / kg; the polycarboxylate superplasticizer is a powdery solid, the water reducing rate is not less than 25%, the bleeding ratio is not more than 60%, and the specific surface area is ≥ 200m 2 / kg; the naphthalene-based water reducer is a powdery solid with a sodium sulfate con...

Embodiment 3

[0062]A domestic sludge ash-based fire zone roadway sealing material, comprising the following raw materials in parts by weight: 20 parts of Portland cement clinker, 13 parts of aluminate cement, 18 parts of domestic sludge ash, 53 parts of coke gemstones, poly 0.08 parts of carboxylic acid water reducing agent, 0.25 parts of naphthalene-based water reducing agent, 0.08 parts of triethanolamine, 0.6 parts of calcium chloride, 0.8 parts of dihydrate gypsum, 0.3 parts of aluminum sulfate, 0.04 parts of polypropylene fiber, 0.09 parts of chopped basalt fiber and 90 parts of water.

[0063] Al in aluminate cement 2 o 3 The content of the aluminate cement is 55 wt%, and the specific surface area of ​​the aluminate cement is ≥350 m 2 / kg; the polycarboxylate superplasticizer is a powdery solid, the water reducing rate is not less than 25%, the bleeding ratio is not more than 60%, and the specific surface area is ≥ 200m 2 / kg; the naphthalene-based water reducer is a powdery solid...

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Abstract

The invention relates to the field of coal mine construction, in particular to a domestic sludge ash-based fire region roadway blocking material and a preparation method thereof. The blocking materialis prepared from the following raw materials of portland cement clinker, aluminate cement, domestic sludge ash, flint clay, polycarboxylate superplasticizers, naphthalene water reducers, triethanolamine, calcium chloride, dihydrate gypsum, aluminum sulfate, polypropylene fiber, short cut basalt fiber and water. The blocking material has high temperature resistant performance; through the couplingeffect of three kinds of ingredients of aluminate cement, flint clay aggregate and basalt fiber, the sealed material still has certain pressure-resistant and anti-cracking performance under the effect of coal mien fire region high-temperature air flow; the harmful gas can be effectively isolated; the fast sealing and blocking is realized; the safety of coal mine workers and rescue personnel can be ensured. The preparation process of the blocking material is simple; in the preparation process, dry materials only need to be proportionally mixed and fed to an underground position; then, a solution mixed with additives is added for uniform stirring; a single pipe is used for conveyance; the conveying process is greatly simplified.

Description

technical field [0001] The invention relates to the field of coal mine construction, in particular to a domestic sludge ash-based roadway plugging material in a fire zone and a preparation method thereof. Background technique [0002] With the continuous increase of urban population in our country, the discharge of urban domestic sewage is increasing day by day. As solid waste in the sewage treatment process, the output of sludge has also increased sharply, which has caused the problem of sludge disposal to become increasingly serious. Most of the sludge is organic humus, and it also contains a large number of pathogens, microorganisms, and harmful components of heavy metals such as copper, lead, zinc, and mercury, and even contains a small amount of trace elements and refractory organic pollutants. Destroy the ecological environment. At present, domestic sludge is mostly treated by stacking or landfilling. This treatment method occupies a large amount of land resources. At...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/06C04B111/28C04B111/34
CPCC04B28/06C04B2111/00017C04B2111/00146C04B2111/00275C04B2111/00482C04B2111/00551C04B2111/00663C04B2111/00724C04B2111/28C04B2111/343C04B2201/50C04B7/02C04B18/023C04B14/10C04B24/122C04B22/124C04B14/365C04B22/148C04B16/0633C04B14/46C04B20/0048C04B2103/302
Inventor 卢前明李晓疆王震娄芳
Owner HENAN INST OF ENG
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