In the coal mine transportation, the scraper conveyor chute is badly worn. However, the abrasion performance has not been well documented. In this study, the chute was wear tested under a single factor using a modified pin-on-disc apparatus, including normal load, sliding distance, bulk coal characteristics (water content, gangue content), and chute material. Experiments were also carried out with a simultaneous variation of these factors. Generally speaking, the influence of coal characteristics on the chute wear was obviously higher than that of normal load and sliding distance. An improved wear predict model was obtained taking the operational parameters and bulk coal characteristics into account. The wear mechanism involved micro-ploughing, corrosion, adhesion, and fatigue peeling.
RaoZHZhaoYMHuangCL, et al. Recent developments in drying and dewatering for low rank coals. Progr Energy Combust Sci2015; 46: 1–11.
2.
ZhuHWuZGLiG, et al. Study on wear failures of mining machinery. J China Coal Soc2006; 31: 380–385.
3.
JashanpreetSSatishKMohapatraSK. Study on role of particle shape in erosion wear of austenitic steel using image processing analysis technique. Proc IMechE, Part J: J Engineering Tribology2019; 233: 712–725.
4.
JuJYLiWWangYQ, et al. Dynamics and nonlinear feedback control for torsional vibration bifurcation in main transmission system of scraper conveyor direct-driven by high-power PMSM. Nonlinear Dyn2018; 93: 307–321.
5.
WuTHWangJQWuJY, et al. Wear characterization by an on-line ferrograph image. Proc IMechE, Part J: J Engineering Tribology2011; 225: 23–34.
6.
PetricaMPainsiMBadischE, et al. Wear mechanisms on martensitic steels generated by different rock types in two-body conditions. Tribol Lett2014; 53: 607–616.
7.
GeSRWangQLWangJX. The impact wear-resistance enhancement mechanism of medium manganese steel and its applications in mining machines. Wear2017; 376–377: 1097–1104.
8.
LindroosMRatiaVApostolM, et al. The effect of impact conditions on the wear and deformation behavior of wear resistant steels. Wear2015; 328–329: 197–205.
9.
ZhangZLLiangC. Flow characteristics and stability of lignite powder with different moistures in pneumatic conveying. Chin J Process Eng2013; 13: 568–573.
10.
MatsumotoSIshimatsuHShimadaH, et al. Characterization of mine waste and acid mine drainage prediction by simple testing methods in terms of the effects of sulfate-sulfur and carbonate minerals. Minerals2018; 8: 403.
11.
PereraMSARanjithPGPeterM. Effects of saturation medium and pressure on strength parameters of Latrobe Valley brown coal: Carbon dioxide, water and nitrogen saturations, Energy2011; 36: 6941–6947.
12.
AndrewsAMotsiGTOlubambiPA. Wear and corrosion behaviour of AISI 310 and AISI 316 stainless steels in synthetic mine water. Int J Mater Res2013; 104: 1114–1121.
13.
SapateSGSelokarAGargN. Experimental investigation of hardfaced martensitic steel under slurry abrasion conditions. Mater Des2010; 31: 4001–4006.
14.
ShiZYZhuZC. Case study: Wear analysis of the middle plate of a heavy-load scraper conveyor chute under a range of operating conditions. Wear2017; 380–381: 36–41.
15.
ChenHGuoHShangCJ. Study on wear behaviours of 400 and 450 grade wear resistant steels. Mater Res Innov2014; 18: 270–275.
16.
RendónJOlssonM. Abrasive wear resistance of some commercial abrasion resistant steels evaluated by laboratory test methods. Wear2009; 267: 2055–2061.
17.
WenSZ. Research progress on wear of materials. Tribology2008; 28: 1–5.
18.
BianZFDongJHLeiSG, et al. The impact of disposal and treatment of coal mining wastes on environment and farmland. Environ Geol2009; 58: 625–634.
19.
LiJXLiangSW. Friction and wear of the middle trough in scraper conveyors. Ind Lubr Tribol2018; 70: 1072–1077.
20.
PanZJConnellLDCamilleriM, et al. Effects of matrix moisture on gas diffusion and flow in coal. Fuel2010; 89: 3207–3217.
21.
DurakbasaMNOsannaPHDemirciogluP. The factors affecting surface roughness measurements of the machined flat and spherical surface structures – The geometry and the precision of the surface. Measurement2011; 44: 1986–1999.
22.
MahmoodMTShimSOAlshomraniS, et al. Depth from image focus methods for micro-manufacturing. Int J Adv Manuf Technol2013; 67: 1701–1709.
23.
MalikASChoiTS. Comparison of polymers: A new application of shape from focus. IEEE Trans Syst Man Cybern C2009; 39: 246–250.
24.
MammenJSaydamSHaganP. A study on the effect of moisture content on rock cutting performance. In: Coal operators conference, University of Wollongong, Wollongong, Australia, 2009, pp.340–347.
25.
RoxboroughFFRispinA. The mechanical cutting characteristics of the Lower Chalk. Tunn Tunn Int1973; 5: 45–67.
26.
O'ReillyMPToughSGPirrieND, et al. Tunnelling trials in chalk. Proc Inst Civil Eng1979; 67: 255–283.
27.
SapateSGChopdeADNimbalkarPM, et al. Effect of microstructure on slurry abrasion response of En-31 steel. Mater Des2008; 29: 613–621.
28.
SinhaRMukhopadhyayAK. Influence of particle size and load on loss of material in manganese-steel material: An experimental investigation. Arch Metall Mater2018; 63: 359–364.
29.
BhakatAKMishraAKMishraNS. Characterization of wear and metallurgical properties for development of agricultural grade steel suitable in specific soil conditions. Wear2007; 263: 228–233.
30.
GatesJDGoreGJHermandMJP, et al. The meaning of high stress abrasion and its application in white cast irons. Wear2007; 263: 6–35.
31.
HutchingsIM. Tribology — Friction and wear of engineering materials. Tribol Int1992; 25: 357.
32.
CozzaRCde MelloJDBTanakaDK, et al. Relationship between test severity and wear mode transition in micro-abrasive wear tests. Wear2007; 263: 111–116.
