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Coal mine slurry filling suspending agent and preparation method thereof
The invention discloses a coal mine slurry filling suspending agent and a preparation method thereof. The coal mine slurry filling suspending agent comprises the following components in parts by weight: 600-800 parts of bentonite, 100-200 parts of alpha type semi-hydrated gypsum, 50-100 parts of zeolite powder, 3-5 parts of lignosulfonate and 2-3 parts of polyvinyl alcohol. The suspending agent does not change the original components of the coal mine slurry filling material, and is convenient for large-scale treatment of mine gangue solid waste by slurry with 20-75% of gangue content. The suspending agent disclosed by the invention can be used as an additive, the mixing amount of the suspending agent does not exceed 3% of the mass of solids in slurry, and the suspending agent is small in mixing amount and relatively economical. According to the invention, the viscosity and consistency of the slurry can be effectively improved, the suspension capacity of the slurry is improved, and the fluidity requirements during slurry transportation and goaf diffusion are ensured in the slurry filling process.
本发明公开了一种煤矿浆体充填悬浮剂及其制备方法，包括如下重量份数的各组分：膨润土600‑800份、α型半水石膏100‑200份、沸石粉50‑100份、木质素磺酸盐3‑5份、聚乙烯醇2‑3份。本发明悬浮剂不改变煤矿浆体充填材料原有组份，便于20%~75%矸石含量的浆体大规模处置矿山矸石固废。本发明的悬浮剂可作为外加剂使用，其掺量不超过浆体中固体质量的3%，掺量小，较为经济。本发明可以有效改善浆液自身的粘度和稠度，提高浆液的悬浮能力，在浆体充填过程中保证浆液运输与采空区扩散期间的流动性要求。
Coal mine slurry filling suspending agent and preparation method thereof
The invention discloses a coal mine slurry filling suspending agent and a preparation method thereof. The coal mine slurry filling suspending agent comprises the following components in parts by weight: 600-800 parts of bentonite, 100-200 parts of alpha type semi-hydrated gypsum, 50-100 parts of zeolite powder, 3-5 parts of lignosulfonate and 2-3 parts of polyvinyl alcohol. The suspending agent does not change the original components of the coal mine slurry filling material, and is convenient for large-scale treatment of mine gangue solid waste by slurry with 20-75% of gangue content. The suspending agent disclosed by the invention can be used as an additive, the mixing amount of the suspending agent does not exceed 3% of the mass of solids in slurry, and the suspending agent is small in mixing amount and relatively economical. According to the invention, the viscosity and consistency of the slurry can be effectively improved, the suspension capacity of the slurry is improved, and the fluidity requirements during slurry transportation and goaf diffusion are ensured in the slurry filling process.
本发明公开了一种煤矿浆体充填悬浮剂及其制备方法，包括如下重量份数的各组分：膨润土600‑800份、α型半水石膏100‑200份、沸石粉50‑100份、木质素磺酸盐3‑5份、聚乙烯醇2‑3份。本发明悬浮剂不改变煤矿浆体充填材料原有组份，便于20%~75%矸石含量的浆体大规模处置矿山矸石固废。本发明的悬浮剂可作为外加剂使用，其掺量不超过浆体中固体质量的3%，掺量小，较为经济。本发明可以有效改善浆液自身的粘度和稠度，提高浆液的悬浮能力，在浆体充填过程中保证浆液运输与采空区扩散期间的流动性要求。
Coal mine slurry filling suspending agent and preparation method thereof
一种煤矿浆体充填悬浮剂及其制备方法
ZHENG ZHONGYOU (author) / ZHU LEI (author) / LIU CHENGYONG (author) / LI CHAO (author) / ZHANG FUTAO (author) / ZHANG JINPENG (author) / DONG LI (author) / WANG HANQIU (author) / XU KAI (author) / WU YUYI (author)
2022-12-30
Patent
Electronic Resource
Chinese
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