A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention discloses a preparation method of high-concentration coal gangue filling slurry. The preparation method comprises the following steps: S1, preparing raw materials; s2, preparing a solution; s3, preparing a first mixture; s4, preparing a second mixture; s5, preparing a third mixture; step S6, preparing a filling slurry precursor; step S7, preparing filling slurry; according to the high-concentration coal gangue filling slurry disclosed by the invention, coal gangue particles with different millimeter-grade and micron-grade gradations are adopted as filling aggregates, and cement and fly ash are not needed, so that the cost is low; the special active agent is adopted to excite the surfaces of the micron-sized gangue particles, so that the micron-sized gangue particles have self-cementing property and are easy to solidify; due to the adoption of the special water-retaining agent, bleeding is avoided; the filling material can be conveniently conveyed to a filling working face through a pipeline in the using process, has good filling and curing performance, does not pollute underground water due to bleeding, and has good environmental benefits.
本发明公开了一种煤矸石高浓度充填料浆的制备方法，包括以下步骤：步骤S1，原料准备；步骤S2，溶液配制；步骤S3，第一混合物制备；步骤S4，第二混合物制备；步骤S5，第三混合物制备；步骤S6，充填料浆前体制备；步骤S7，充填料浆制备；本发明煤矸石高浓度充填料浆，采用不同毫米级和微米级级配的煤矸石颗粒作为充填骨料，无需使用水泥和粉煤灰，因此成本低；由于采用专用活性剂激发微米级矸石颗粒的表面，使其具有自胶结性，易固化；由于采用专用的保水剂，使其不泌水；该充填材料在使用过程中便于通过管道将其输送到充填工作面，且表现出良好的充填固化性能，同时不会由于泌水而污染地下水，具有较好的环境效益。
The invention discloses a preparation method of high-concentration coal gangue filling slurry. The preparation method comprises the following steps: S1, preparing raw materials; s2, preparing a solution; s3, preparing a first mixture; s4, preparing a second mixture; s5, preparing a third mixture; step S6, preparing a filling slurry precursor; step S7, preparing filling slurry; according to the high-concentration coal gangue filling slurry disclosed by the invention, coal gangue particles with different millimeter-grade and micron-grade gradations are adopted as filling aggregates, and cement and fly ash are not needed, so that the cost is low; the special active agent is adopted to excite the surfaces of the micron-sized gangue particles, so that the micron-sized gangue particles have self-cementing property and are easy to solidify; due to the adoption of the special water-retaining agent, bleeding is avoided; the filling material can be conveniently conveyed to a filling working face through a pipeline in the using process, has good filling and curing performance, does not pollute underground water due to bleeding, and has good environmental benefits.
本发明公开了一种煤矸石高浓度充填料浆的制备方法，包括以下步骤：步骤S1，原料准备；步骤S2，溶液配制；步骤S3，第一混合物制备；步骤S4，第二混合物制备；步骤S5，第三混合物制备；步骤S6，充填料浆前体制备；步骤S7，充填料浆制备；本发明煤矸石高浓度充填料浆，采用不同毫米级和微米级级配的煤矸石颗粒作为充填骨料，无需使用水泥和粉煤灰，因此成本低；由于采用专用活性剂激发微米级矸石颗粒的表面，使其具有自胶结性，易固化；由于采用专用的保水剂，使其不泌水；该充填材料在使用过程中便于通过管道将其输送到充填工作面，且表现出良好的充填固化性能，同时不会由于泌水而污染地下水，具有较好的环境效益。
Gangue slurry filling material and preparation method thereof
| European Patent Office | 2024
| European Patent Office | 2024
Underground coal gangue filling material and preparation method thereof
| European Patent Office | 2024
| European Patent Office | 2024