Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Zero-springback supporting guniting material and guniting equipment
The invention discloses a zero-springback supporting guniting material and guniting equipment, relates to the field of mine underground supporting guniting materials, and aims to solve the problems of high springback and large dust in the prior art. 30-60% of Portland cement, 40-70% of dried gold ore tailings, 1-5% of desulfurized gypsum, 1-5% of silica fume, 0.5-2% of an accelerator, 0.01-1% of redispersible latex powder and 0.01-1% of a water reducing agent are used, the raw materials are uniformly stirred to prepare a mixture, water is added according to the water-cement ratio of 0.18-0.25 to prepare slurry, and the slurry is prepared into the high-strength cement mortar. The slurry is sprayed to surrounding rock or a reinforcing mesh on the surface of the roadway through an underground wet-type slurry spraying machine; by arranging the stirring barrel at the inlet of the guniting machine, the guniting equipment can be matched with a guniting material using method, the guniting equipment is light and stable, and the guniting effect of 5 cubic meters per hour can be efficiently achieved; and the secondary pressurizing spray head is used, so that the slurry spraying quality is improved while the loss of slurry fluid of the spray nozzle is effectively improved and the springback is reduced, and the effects of zero springback and small dust are achieved.
本发明公开了一种零回弹支护喷浆料及喷浆装备，涉及矿山井下支护喷浆料领域，旨在解决现有技术中回弹高、粉尘大的问题，采用的技术方案是，使用了30‑60％硅酸盐水泥、40‑70％金矿烘干尾砂、1‑5％脱硫石膏、1‑5％硅灰、0.5％‑2％速凝剂、0.01％‑1％可再分散乳胶粉、0.01％‑1％减水剂，将原料搅拌均匀制备成混合物，按水灰比0.18‑0.25加水制备成料浆，通过井下湿式喷浆机将料浆喷涂至巷道表面围岩或钢筋网上；通过在喷浆机进口处设置搅拌桶，能够使该喷浆设备能够与喷浆料使用方法相契合，该喷浆设备轻便稳定，可高效实现5立方/小时的喷浆效果；使用二次加压喷头，有效改善喷嘴料浆流体的耗损降低回弹的同时提高了喷浆质量，达到了零回弹，且粉尘小的效果。
Zero-springback supporting guniting material and guniting equipment
The invention discloses a zero-springback supporting guniting material and guniting equipment, relates to the field of mine underground supporting guniting materials, and aims to solve the problems of high springback and large dust in the prior art. 30-60% of Portland cement, 40-70% of dried gold ore tailings, 1-5% of desulfurized gypsum, 1-5% of silica fume, 0.5-2% of an accelerator, 0.01-1% of redispersible latex powder and 0.01-1% of a water reducing agent are used, the raw materials are uniformly stirred to prepare a mixture, water is added according to the water-cement ratio of 0.18-0.25 to prepare slurry, and the slurry is prepared into the high-strength cement mortar. The slurry is sprayed to surrounding rock or a reinforcing mesh on the surface of the roadway through an underground wet-type slurry spraying machine; by arranging the stirring barrel at the inlet of the guniting machine, the guniting equipment can be matched with a guniting material using method, the guniting equipment is light and stable, and the guniting effect of 5 cubic meters per hour can be efficiently achieved; and the secondary pressurizing spray head is used, so that the slurry spraying quality is improved while the loss of slurry fluid of the spray nozzle is effectively improved and the springback is reduced, and the effects of zero springback and small dust are achieved.
本发明公开了一种零回弹支护喷浆料及喷浆装备，涉及矿山井下支护喷浆料领域，旨在解决现有技术中回弹高、粉尘大的问题，采用的技术方案是，使用了30‑60％硅酸盐水泥、40‑70％金矿烘干尾砂、1‑5％脱硫石膏、1‑5％硅灰、0.5％‑2％速凝剂、0.01％‑1％可再分散乳胶粉、0.01％‑1％减水剂，将原料搅拌均匀制备成混合物，按水灰比0.18‑0.25加水制备成料浆，通过井下湿式喷浆机将料浆喷涂至巷道表面围岩或钢筋网上；通过在喷浆机进口处设置搅拌桶，能够使该喷浆设备能够与喷浆料使用方法相契合，该喷浆设备轻便稳定，可高效实现5立方/小时的喷浆效果；使用二次加压喷头，有效改善喷嘴料浆流体的耗损降低回弹的同时提高了喷浆质量，达到了零回弹，且粉尘小的效果。
Zero-springback supporting guniting material and guniting equipment
一种零回弹支护喷浆料及喷浆装备
JI MAOWEI (Autor:in) / LIANG RUI (Autor:in) / ZHANG FAYUAN (Autor:in) / WEI DEXIN (Autor:in)
03.01.2023
Patent
Elektronische Ressource
Chinesisch
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