Simulation analysis of the influence of gangue layer morphology on the cutting characteristics of the roadheader bolter
In the actual excavation process of the roadway, besides the coal seam, there are various types of gangue layers on the working face. The existence of these gangue layers will affect the cutting efficiency of the roadheader bolter. However, most current studies analyze the cutting characteristics of...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | zho |
| Published: |
Editorial Department of Industry and Mine Automation
2023-03-01
|
| Series: | Gong-kuang zidonghua |
| Subjects: | |
| Online Access: | http://www.gkzdh.cn/article/doi/10.13272/j.issn.1671-251x.2022090062 |
| _version_ | 1827942035485622272 |
|---|---|
| author | LIANG Xu GUO Jiahao CHANG Maomao QU Xingjia ZHANG Li |
| author_facet | LIANG Xu GUO Jiahao CHANG Maomao QU Xingjia ZHANG Li |
| author_sort | LIANG Xu |
| collection | DOAJ |
| description | In the actual excavation process of the roadway, besides the coal seam, there are various types of gangue layers on the working face. The existence of these gangue layers will affect the cutting efficiency of the roadheader bolter. However, most current studies analyze the cutting characteristics of the drum with the background of a fully-coal working face or consider a relatively simple morphology of the gangue layer. To solve the above problems, taking the MB670-1 roadheader bolter as the research object, a 3D model of the roadheader bolter is created using Pro/E software. The model is input into RecurDyn software and the corresponding motion pair is added. The model is then input into EDEM software to establish an EDEM-RecurDyn coupling simulation model. The influence of three types of gangue layers, horizontal gangue layers, inclined gangue layers, and semi-gangue layers, on the cutting characteristics of the roadheader bolter is simulated and analyzed from three aspects: drum cutting performance, drum displacement and drum vibration. The results show the following points. ① Compared with the full coal seam, under the conditions of gangue layers, the drum cutting resistance, load fluctuation coefficient, and cutting specific energy consumption all increase. They increase most significantly under the condition of inclined rock layers. The average cutting resistance increases by 35.61%. The load fluctuation coefficients along the X-axis (along excavation direction of the roadheader bolter), Y-axis (perpendicular to the roadway bottom direction), and Z-axis (parallel to the drum axis direction) increase by 26.79%, 25.39%, and 61.28% respectively. The cutting specific energy consumption increases by 37.21%. ② The existence of gangue layers causes a decrease in the displacement of the drum. Compared with the full-coal seam, the displacement of the drum is reduced by 53, 89, 14 mm in the horizontal gangue layer, inclined gangue layer, and gangue layer respectively. ③ The vibration amplitude generated by the drum when cutting a working face containing gangue is much greater than when cutting a working face containing full-coal seams. ④ The influence of the morphology of the gangue layer on the cutting characteristics of the roadheader bolter is in the order of inclined gangue layer ＞ horizontal gangue layer ＞ semi-gangue layer. |
| first_indexed | 2024-03-13T09:52:38Z |
| format | Article |
| id | doaj.art-85addac360f540869c4c5ab5be743c44 |
| institution | Directory Open Access Journal |
| issn | 1671-251X |
| language | zho |
| last_indexed | 2024-03-13T09:52:38Z |
| publishDate | 2023-03-01 |
| publisher | Editorial Department of Industry and Mine Automation |
| record_format | Article |
| series | Gong-kuang zidonghua |
| spelling | doaj.art-85addac360f540869c4c5ab5be743c442023-05-24T06:23:17ZzhoEditorial Department of Industry and Mine AutomationGong-kuang zidonghua1671-251X2023-03-01493939910.13272/j.issn.1671-251x.2022090062Simulation analysis of the influence of gangue layer morphology on the cutting characteristics of the roadheader bolterLIANG Xu0GUO Jiahao1CHANG Maomao2QU Xingjia3ZHANG Li4Shaanxi Xiaobaodang Mining Co., Ltd., Yulin 719000, ChinaShaanxi Xiaobaodang Mining Co., Ltd., Yulin 719000, ChinaShaanxi Xiaobaodang Mining Co., Ltd., Yulin 719000, ChinaCCTEG Shenyang Research Institute, Fushun 113122, ChinaCCTEG Shenyang Research Institute, Fushun 113122, ChinaIn the actual excavation process of the roadway, besides the coal seam, there are various types of gangue layers on the working face. The existence of these gangue layers will affect the cutting efficiency of the roadheader bolter. However, most current studies analyze the cutting characteristics of the drum with the background of a fully-coal working face or consider a relatively simple morphology of the gangue layer. To solve the above problems, taking the MB670-1 roadheader bolter as the research object, a 3D model of the roadheader bolter is created using Pro/E software. The model is input into RecurDyn software and the corresponding motion pair is added. The model is then input into EDEM software to establish an EDEM-RecurDyn coupling simulation model. The influence of three types of gangue layers, horizontal gangue layers, inclined gangue layers, and semi-gangue layers, on the cutting characteristics of the roadheader bolter is simulated and analyzed from three aspects: drum cutting performance, drum displacement and drum vibration. The results show the following points. ① Compared with the full coal seam, under the conditions of gangue layers, the drum cutting resistance, load fluctuation coefficient, and cutting specific energy consumption all increase. They increase most significantly under the condition of inclined rock layers. The average cutting resistance increases by 35.61%. The load fluctuation coefficients along the X-axis (along excavation direction of the roadheader bolter), Y-axis (perpendicular to the roadway bottom direction), and Z-axis (parallel to the drum axis direction) increase by 26.79%, 25.39%, and 61.28% respectively. The cutting specific energy consumption increases by 37.21%. ② The existence of gangue layers causes a decrease in the displacement of the drum. Compared with the full-coal seam, the displacement of the drum is reduced by 53, 89, 14 mm in the horizontal gangue layer, inclined gangue layer, and gangue layer respectively. ③ The vibration amplitude generated by the drum when cutting a working face containing gangue is much greater than when cutting a working face containing full-coal seams. ④ The influence of the morphology of the gangue layer on the cutting characteristics of the roadheader bolter is in the order of inclined gangue layer ＞ horizontal gangue layer ＞ semi-gangue layer.http://www.gkzdh.cn/article/doi/10.13272/j.issn.1671-251x.2022090062roadheader bolterdrum cuttinggangue layeredem-recurdyn couplingload fluctuation coefficientcutting specific energy consumptiondrum displacementdrum vibration |
| spellingShingle | LIANG Xu GUO Jiahao CHANG Maomao QU Xingjia ZHANG Li Simulation analysis of the influence of gangue layer morphology on the cutting characteristics of the roadheader bolter Gong-kuang zidonghua roadheader bolter drum cutting gangue layer edem-recurdyn coupling load fluctuation coefficient cutting specific energy consumption drum displacement drum vibration |
| title | Simulation analysis of the influence of gangue layer morphology on the cutting characteristics of the roadheader bolter |
| title_full | Simulation analysis of the influence of gangue layer morphology on the cutting characteristics of the roadheader bolter |
| title_fullStr | Simulation analysis of the influence of gangue layer morphology on the cutting characteristics of the roadheader bolter |
| title_full_unstemmed | Simulation analysis of the influence of gangue layer morphology on the cutting characteristics of the roadheader bolter |
| title_short | Simulation analysis of the influence of gangue layer morphology on the cutting characteristics of the roadheader bolter |
| title_sort | simulation analysis of the influence of gangue layer morphology on the cutting characteristics of the roadheader bolter |
| topic | roadheader bolter drum cutting gangue layer edem-recurdyn coupling load fluctuation coefficient cutting specific energy consumption drum displacement drum vibration |
| url | http://www.gkzdh.cn/article/doi/10.13272/j.issn.1671-251x.2022090062 |
| work_keys_str_mv | AT liangxu simulationanalysisoftheinfluenceofganguelayermorphologyonthecuttingcharacteristicsoftheroadheaderbolter AT guojiahao simulationanalysisoftheinfluenceofganguelayermorphologyonthecuttingcharacteristicsoftheroadheaderbolter AT changmaomao simulationanalysisoftheinfluenceofganguelayermorphologyonthecuttingcharacteristicsoftheroadheaderbolter AT quxingjia simulationanalysisoftheinfluenceofganguelayermorphologyonthecuttingcharacteristicsoftheroadheaderbolter AT zhangli simulationanalysisoftheinfluenceofganguelayermorphologyonthecuttingcharacteristicsoftheroadheaderbolter |