Compound sand-suspending agent for slurry filling and preparation method and usage thereof

A sand-suspending agent and sand-suspending technology, which is applied in the field of compound suspending agent for grouting filling and its preparation and use, can solve the problems of plugging, cooling, inerting, flame retardant, large amount of suspending agent used, and stable suspension Short time and other issues, to achieve the comprehensive performance of flame retardant, prevent rapid sinking, and wide adjustment range

Active Publication Date: 2018-04-17
新疆维吾尔自治区煤田灭火工程局 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing inventions are mainly used in the environment of materials with light specific gravity and small particle size of suspended particles, and the suspension capacity is limited. For sandy soil pulping, there ar

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A compound suspending agent for grouting filling and its preparation and use method, the specific steps are as follows:

[0035] A). Preparation of composite suspension agent

[0036] 1). According to weight percentage, weigh 64% bentonite (sodium base), 25% vegetable gum (eucalyptus powder) MC, 4% cellulose (carboxymethyl hydroxyethyl cellulose) CMC, 0.5% Sodium polyacrylate PAANA, 0.5% polyacrylamide PAM, 0.5% sodium dodecylbenzene sulfonate SDBS, 2% hydrous magnesium silicate, 0.5% calcium hydroxide, 1% calcium sulfate, 2% sodium bicarbonate;

[0037] 2). Process and crush bentonite, hydrous magnesium silicate, calcium hydroxide, calcium sulfate, and sodium bicarbonate into fine powder of more than 150 mesh;

[0038] 3). Process and grind vegetable gum (eucalyptus powder) MC, cellulose (carboxymethyl hydroxyethyl cellulose) CMC, polyacrylic acid sodium PAANA, polyacrylamide PAM, sodium dodecylbenzene sulfonate SDBS into 40 mesh powder;

[0039] 4). Then mix evenly...

Embodiment 2

[0047] A compound suspending agent for grouting filling and its preparation and use method, the specific steps are as follows:

[0048] A). Preparation of composite suspension agent

[0049] 1). According to weight percentage, weigh 55.6% of bentonite (sodium base), 35% of vegetable gum (eucalyptus powder) MC, 4.6% of cellulose (carboxymethyl hydroxyethyl cellulose) CMC, 0.6% of Sodium polyacrylate PAANA, 0.62% polyacrylamide PAM, 0.08% sodium dodecylbenzene sulfonate SDBS, 1% hydrous magnesium silicate, 0.5% calcium hydroxide, 0.5% calcium sulfate, 1.5% sodium bicarbonate;

[0050] 2). Process and pulverize bentonite, hydrous magnesium silicate, calcium sulfate, calcium hydroxide, and sodium bicarbonate into fine powder above 150 mesh;

[0051] 3). Process and grind vegetable gum (eucalyptus powder) MC, cellulose (carboxymethyl hydroxyethyl cellulose) CMC, polyacrylic acid sodium PAANA, polyacrylamide PAM, sodium dodecylbenzene sulfonate SDBS into 40 mesh powder;

[0052] ...

Embodiment 3

[0060] A compound suspending agent for grouting filling and its preparation and use method, the specific steps are as follows:

[0061] A). Preparation of composite suspension agent

[0062] 1). According to weight percentage, weigh 50% bentonite (sodium base), 40% vegetable gum (eucalyptus powder) MC, 3% cellulose (carboxymethyl hydroxyethyl cellulose) CMC, 2% poly Acrylamide PAM, 1.5% sodium polyacrylate PAANA, 0.1% sodium dodecylbenzenesulfonate SDBS, 1.5% hydrous magnesium silicate, 0.2% calcium hydroxide, 0.5% calcium sulfate, 1.2% sodium bicarbonate;

[0063] 2). Process and crush bentonite, hydrous magnesium silicate, calcium hydroxide, calcium sulfate, and sodium bicarbonate into fine powder of more than 150 mesh;

[0064] 3). Process and grind vegetable gum (eucalyptus powder) MC, cellulose (carboxymethyl hydroxyethyl cellulose) CMC, polyacrylamide PAM, sodium polyacrylate PAANA, sodium dodecylbenzenesulfonate SDBS into 40 mesh powder;

[0065] 4). Then mix evenly ...

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Abstract

The invention belongs to the field of coal field fire control engineering and the filling of gobs, abandoned roadways and collapse pits after geological disasters and the mining of coal mines and thelike, and particularly relates to a compound sand-suspending agent for slurry filling and a preparation method and usage thereof. The compound sand-suspending agent is prepared from the following components: 45 to 70 percent of bentonite (sodium-based), 25 to 40 percent of vegetable gum, 2 to 8 percent of cellulose, 0.3 to 3 percent of sodium polyacrylate, 0.3 to 3 percent of polyacrylamide, 0.05to 2 percent of sodium dodecylbenzene sulfonate, 0.5 to 2 percent of hydrous magnesium silicate, 0.2 to 1 percent of calcium hydroxide, 0.5 to 2 percent of calcium sulphate and 0.5 to 5 percent of sodium bicarbonate, and all the percentages are percentages by weight. The invention further discloses the preparation method and usage of the compound sand-suspending agent for slurry filling. The invention mainly achieves the objective that after sand-fly ash slurry filling material is mixed with water and a small amount of sand-suspending agent, long-distance pipeline or borehole transport is realized, the sand slurry is prevented from depositing to block a pipeline in the process of transport, and thereby the sand slurry smoothly arrives at a space to be filled and realizes fracture sealing,temperature decreasing and fire extinguishment, safety and high efficiency and fire zone reburning prevention.

Description

technical field [0001] The invention belongs to the fields of coalfield fire control engineering, geological disasters, goafs after mining of coal mines, waste roadways, and subsidence pits, and particularly relates to a composite suspending agent for grouting and its preparation and use methods. Background technique [0002] In addition to the similarities with previous geological disasters and goaf control in coal mines, the coalfield fire control project must also consider the prevention and control of gas, fire, water, high temperature and other disasters in the goaf, so the requirements for control methods and materials are higher. At present, loess, fly ash and other materials are used to make liquid mud, plus water glass, ammonium bicarbonate and other combinations, or sodium polyacrylate is used as a precedent for gelling agent, but there are high requirements for loess and fly ash during use, and cannot There are sandstones or particles with larger particle sizes, w...

Claims

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Application Information

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IPC IPC(8): C04B28/14C04B111/70
CPCC04B28/14C04B2111/70C04B14/104C04B16/02C04B24/383C04B24/2641C04B24/2652C04B24/20C04B14/042C04B22/064C04B22/10
Inventor 贾新勇魏军赵浚延包兴东刘振东闫军
Owner 新疆维吾尔自治区煤田灭火工程局
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