煤炭工程 ›› 2023, Vol. 55 ›› Issue (11): 115-118.doi: 10.11799/ce202311019

• 生产技术 • 上一篇    下一篇

新型耐磨板在刮板输送机中的应用

朱秀光,穆润青,张彦斌,梁小凯,张彩霞,李诚   

  1. 1. 中煤张家口煤矿机械有限责任公司, 河北 张家口 076025
    2. 河北省高端智能矿山装备技术创新中心, 河北 张家口 076025
    3. 钢铁研究总院有限公司工程用钢研究所, 北京 100081

  • 收稿日期:2022-12-21 修回日期:2023-03-03 出版日期:2023-11-20 发布日期:2025-04-07
  • 通讯作者: 穆润青 E-mail:mrq@zmm.cn

Application of new wear-resistant plate in scraper conveyor

  • Received:2022-12-21 Revised:2023-03-03 Online:2023-11-20 Published:2025-04-07

摘要:

为延长刮板输送机中部槽的使用寿命, 研究了在不增加硬度的前提下提高材料耐磨性的方法。通过在常规耐磨钢板材料中添加一定量的钛、碳等元素, 经冶炼、轧制、热处理等工艺后, 在常规马氏体基体中弥散大量微米级的TiC 硬质颗粒, 该颗粒改变了钢板的抗磨机理, 在煤矸石、石英砂等磨料磨损钢板时, TiC 颗粒阻碍了磨削犁沟的形成或变浅犁沟深度, 进而减少磨料对钢板的磨损, 实现在不增加设备加工成本的基础上延长设备运行寿命。单一测试和同工况对比测试结果表明: 配套新型耐磨板的刮板输送机中板百万吨过煤磨损量较常规减少1/3以上, 耐磨性显著优于同硬度等级进口材料, 为提升刮板输送设备可靠性、实现煤炭资源安全高效开采提供了坚实的技术支撑。

关键词: 刮板输送机, 中部槽, 耐磨钢板, ZM4-13, 磨损

Abstract:

At present,conventional low-alloy martensite wear-resistant steel plate is adopted in line pan deck plate and bottom plate of scraper conveyor, used at fully mechanized coal face at home and abroad. The service life of equipment is improved by increasing hardness. By adding a certain amount of Titanium, carbon and other elements to conventional wear-resistant steel plate material, after smelting, rolling, heat treatment and other processes, a large number of micron-size TiC hard particles are dispersed in conventional martensite matrix, which changes wear-resistant mechanism in the use of steel plate. When steel plate is worn out by abrasives such as coal gangue and quartz sand, TiC particles hinder the formation of grinding groove or make groove depth shallower, thus reducing steel plate worn out is achieved. The service life of equipment is prolonged and achieved without increasing equipment manufacturing cost. Through single test and comparison test under the same working conditions, the worn out rate of new wear-resistant deck plate of scraper conveyor for conveying million tons of coal is more than 1/3 lower than that of conventional conveyor, and the wear-resistance is significantly better than that of imported materials of the same hardness level, which provides solid technique support for improving the reliability of scraper conveying equipment and realizing safe and efficient mining of coal resources.

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