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CN-122010507-A - Mineral inorganic phase-change gel grouting material and preparation method and use method thereof

CN122010507ACN 122010507 ACN122010507 ACN 122010507ACN-122010507-A

Abstract

The invention discloses a mining inorganic phase change gel grouting material, a preparation method and a use method thereof, wherein the grouting material comprises, by weight, 100 parts of a base material and 7-30 parts of an auxiliary agent, wherein the auxiliary agent comprises 0.5-5.0 parts of a toughening agent, 0.5-5.0 parts of a suspending agent, 1.0-3.5 parts of an adhesive, 0.5-1.5 parts of a water reducer, 3.0-7.0 parts of an reinforcing agent, 0.03-1.0 parts of an expanding agent, 1.0-6.0 parts of a speed regulator and 0.2-1.0 parts of a penetration enhancer. The mining inorganic phase-change gel grouting material is a single-component powder material, has higher operation fault tolerance rate compared with the traditional double-component grouting material or liquid material, can effectively improve the convenience of transportation and construction, has excellent adhesiveness and permeability to coal, and can effectively improve the stability of a sealing structure and the sealing performance of drilling holes.

Inventors

  • Di Pengju
  • HAO JINWEI
  • SHU LONGYONG
  • LI XIN
  • HAN XINTAO
  • YANG WEIDONG
  • Duan Linke

Assignees

  • 煤炭科学技术研究院有限公司

Dates

Publication Date
20260512
Application Date
20251230

Claims (10)

  1. 1. The mining inorganic phase change gel grouting material is characterized by comprising, by weight, 100 parts of a base material and 7-30 parts of an auxiliary agent, wherein the auxiliary agent comprises 0.5-5.0 parts of a toughening agent, 0.5-5.0 parts of a suspending agent, 1.0-3.5 parts of an adhesive, 0.5-1.5 parts of a water reducer, 3.0-7.0 parts of a reinforcing agent, 0.03-1.0 parts of an expanding agent, 1.0-6.0 parts of a speed regulator and 0.2-1.0 parts of a permeability enhancer.
  2. 2. The mining inorganic phase change gel grouting material of claim 1, wherein the base material comprises at least one of sulfoaluminate cement, portland cement, cement clinker, aluminate cement.
  3. 3. The mining inorganic phase-change gel grouting material according to claim 1, wherein the toughening agent comprises (0.4-4.5) polyvinyl alcohol and borax in a mass ratio of (0.1-0.6).
  4. 4. The mining inorganic phase-change gel grouting material according to claim 1, wherein the suspending agent comprises cellulose ether, polyvinylpyrrolidone, temperature roller gum and starch ether, wherein the mass ratio of the cellulose ether to the temperature roller gum is (0.3-2.5): (0-1.0): (0.2-1.0): (0-2.0).
  5. 5. The mining inorganic phase-change gel grouting material according to claim 1, wherein the adhesive comprises at least one of 801 rubber powder, 901 rubber powder, redispersible latex powder and polyacrylamide.
  6. 6. The mineral inorganic phase-change gel grouting material according to claim 1, wherein the water reducer is a polycarboxylate water reducer or a naphthalene water reducer.
  7. 7. The mining inorganic phase change gel grouting material of claim 1, wherein the reinforcing agent comprises at least one of mineral powder, fumed silica, silica fume.
  8. 8. The mining inorganic phase change gel grouting material according to claim 1, wherein the expanding agent comprises at least one of a calcium oxide expanding agent, a sulphoaluminate expanding agent and a plastic expanding agent; And/or the speed regulator comprises at least one of calcium formate, sodium metaaluminate, lithium carbonate, citric acid and sodium citrate; And/or the permeability enhancer comprises at least one of sodium dodecyl sulfonate and sodium dodecyl benzene sulfonate.
  9. 9. A method for preparing the mineral inorganic phase-change gel grouting material as claimed in any one of claims 1 to 8, comprising the following steps: stirring and mixing a toughening agent, a suspending agent, an adhesive, a water reducing agent, a reinforcing agent, an expanding agent, a speed regulator and a permeation enhancer to obtain an auxiliary agent; and stirring and mixing the base material and the auxiliary agent to obtain the mineral inorganic phase-change gel grouting material.
  10. 10. A method of using the mineral inorganic phase change gel grouting material of any one of claims 1 to 8 or the mineral inorganic phase change gel grouting material of claim 9, comprising at least one of the following: (i) Stirring and mixing water and a mining inorganic phase-change gel grouting material according to the mass ratio of (0.5-2) to 1 to form grouting liquid, and then carrying out rigid hole sealing by using the grouting liquid; (ii) And (3) stirring and mixing water and the mining inorganic phase-change gel grouting material according to the mass ratio of (2-4): 1 to form grouting liquid, and then carrying out flexible hole sealing by using the grouting liquid.

Description

Mineral inorganic phase-change gel grouting material and preparation method and use method thereof Technical Field The invention belongs to the technical field of drilling sealing, and particularly relates to a mining inorganic phase-change gel grouting material, a preparation method and a use method thereof. Background The drilling sealing technology is a key means for gas resource utilization, greenhouse effect alleviation, gas disaster prevention and water damage prevention. The drilling sealing material (namely grouting material) has key effects on improving extraction efficiency and guaranteeing coal mine safety by plugging the leakage channel and reinforcing surrounding rock of the drilling. However, with the large-scale development of deep coal resources, the conventional grouting materials are difficult to meet application requirements, and the risk of mine disasters increases. Therefore, the development of a novel grouting material suitable for complex coal seam conditions has important significance for disaster prevention and control, efficient gas utilization and green mine construction. Cement is used as a filling material with the most extensive application and the longest history, and is widely applied in the field of mine grouting hole sealing due to the advantages of stable strength, reliable performance, low cost, abundant raw materials, simple and convenient operation and the like. However, the traditional cement grouting hole sealing has low efficiency and large consumption, and the hole sealing failure and the extraction efficiency are reduced due to shrinkage after hardening. In addition, cement production needs to consume a large amount of resources, and a large amount of greenhouse gases are side by side, so that resource waste and environmental pollution are caused. And when common polymer grouting materials such as polyurethane, silicate-polyurethane composite materials, epoxy resin and the like are used for sealing drilling holes, a large amount of heat is generated, and the safety of coal mines is threatened. The challenges described above limit the use of conventional grouting materials in the field of high performance borehole sealing. In view of this, the present invention has been made. Disclosure of Invention The present invention aims to solve at least one of the technical problems in the related art to some extent. Therefore, the embodiment of the invention provides a mining inorganic phase-change gel grouting material, and a preparation method and a use method thereof. In order to achieve the aim of the invention, the invention adopts the following technical scheme: In the first aspect, the embodiment of the invention provides a mining inorganic phase-change gel grouting material, which comprises, by weight, 100 parts of a base material and 7-30 parts of an auxiliary agent, wherein the auxiliary agent comprises 0.5-5.0 parts of a toughening agent, 0.5-5.0 parts of a suspending agent, 1.0-3.5 parts of an adhesive, 0.5-1.5 parts of a water reducer, 3.0-7.0 parts of a reinforcing agent, 0.03-1.0 parts of an expanding agent, 1.0-6.0 parts of a speed regulator and 0.2-1.0 parts of a permeation enhancer. In some embodiments, the binder comprises at least one of a sulphoaluminate cement, a silicate cement, a cement clinker, an aluminate cement. In some embodiments, the toughening agent comprises (0.4-4.5) polyvinyl alcohol and borax in a mass ratio of (0.1-0.6). In some embodiments, the suspending agent comprises cellulose ether, polyvinylpyrrolidone, temperature roller gum and starch ether, wherein the mass ratio of the cellulose ether to the temperature roller gum is (0.3-2.5): (0-1.0): (0.2-1.0): (0-2.0). In some embodiments, the adhesive comprises at least one of 801, 901, redispersible latex, polyacrylamide. In some embodiments, the water reducing agent is a polycarboxylate water reducing agent or a naphthalene-based water reducing agent. In some embodiments, the reinforcing agent comprises at least one of mineral powder, fumed silica, silica fume. In some embodiments, the expansion agent comprises at least one of a calcium oxide-based expansion agent, a thioaluminate expansion agent, a plastic expansion agent; And/or the speed regulator comprises at least one of calcium formate, sodium metaaluminate, lithium carbonate, citric acid and sodium citrate; And/or the permeability enhancer comprises at least one of sodium dodecyl sulfonate and sodium dodecyl benzene sulfonate. In a second aspect, the embodiment of the invention also provides a preparation method of the mining inorganic phase-change gel grouting material according to the first aspect, which comprises the following steps: stirring and mixing a toughening agent, a suspending agent, an adhesive, a water reducing agent, a reinforcing agent, an expanding agent, a speed regulator and a permeation enhancer to obtain an auxiliary agent; and stirring and mixing the base material and the auxiliary agent to obtain the mineral