中国塑料 ›› 2022, Vol. 36 ›› Issue (1): 61-66.DOI: 10.19491/j.issn.1001-9278.2022.01.009

• 材料与性能 • 上一篇    下一篇

用于煤矿井下充填的玻璃纤维增强聚氯乙烯热塑性复合管材的设计与制造

张云鹏1(), 刘祥威1, 王志明1, 张兆2, 王庆昭1()   

  1. 1.山东科技大学化学与生物工程学院,山东 青岛 266590
    2.青岛海聚新材料科技有限公司,山东 青岛 266590
  • 收稿日期:2021-07-21 出版日期:2022-01-26 发布日期:2022-01-21
  • 作者简介:张云鹏(1996—),男,在读硕士研究生,主要从事复合材料的研究,1301348404@qq.com
  • 基金资助:
    北京工商大学高分子材料无卤阻燃剂工程实验室

Design and manufacture of glass⁃fiber⁃reinforced PVC thermoplastic composite pipes for underground filling in coal mine

ZHANG Yunpeng1(), LIU Xiangwei1, WANG Zhiming1, ZHANG Zhao2, WANG Qingzhao1()   

  1. 1.School of Chemistry and Biological Engineering,Shandong University of Science and Technology,Qingdao 266590,China
    2.Qingdao Haiju New Material Technology Co,Ltd,Qingdao 266590,China
  • Received:2021-07-21 Online:2022-01-26 Published:2022-01-21
  • Contact: WANG Qingzhao E-mail:1301348404@qq.com;qzhwang001@126.com

摘要:

针对煤矿膏体输送所用的无缝钢管耐磨性差、更换困难等问题,制备了玻璃纤维增强聚氯乙烯热塑性复合管(PVC?RTP)用于煤矿井下充填,对管材的组成、连接方式、工艺流程和工艺参数进行了全面介绍,并检测了公称压力为9.5 MPa的管材的性能。结果表明,管材爆破压力为38.95 MPa,大于4倍公称压力;当试验压力为14.25 MPa、试验时间为100 h时,管材未破裂,未渗漏;试验压力为11.4 MPa、试验时间为1 000 h时,管材未破裂,未渗漏;公称压力为11.4 MPa、ΔP/PN为48 %,循环次数达到12 000时,管材未破裂,未渗漏,具有质轻、高耐磨和耐蚀性能强的优点,能较好地满足煤矿膏体输送。

关键词: 输送管道, 煤矿充填, 热塑性复合管, 工艺参数

Abstract:

In view of the poor wear resistance and difficulty of replacement of seamless steel pipes used in coal mine paste delivery, the glass?fiber?reinforced PVC thermoplastic composite pipes (PVC?RTP) were developed for the use in the underground filling of coal mine, and their part composition, connection mode, process flow and process parameters were introduced comprehensively. The performance of the pipes at a nominal pressure of 9.5 MPa was also detected. The results indicated that the pipe exhibited a blasting pressure of 38.95 MPa, which was 4 times greater than the nominal pressure. There is no crack occurring in the pipe under the test time of 100 h and test pressure of 14.25 MPa. There is no leakage at 11.4 MPa. After 1 000 h, the pipes showed no rupture and no leakage. At a nominal pressure of 11.4 MPa and a ΔP/PN ratio of 48 %, the number of cycles reached 12 000, and no rupture and leakage were observed. With the characteristics of light weight, high wear resistance, and strong corrosion resistant, the composite pipes can better meet the requirement for the transportation of coal mine paste.

Key words: pipeline, coal mine filling, thermoplastic composite pipe, process parameters

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