Mining Materials Branch of Coal Science and Technology Research Institute Co., Ltd.
State Key Laboratory for Efficient Mining and Clean Utilization of Coal Resources

传统的含氯煤炭运输用防冻液含氯量比较高，极易造成燃煤设备、运输设备、喷洒设备出现锈蚀腐蚀现象，同时燃烧后形成的酸性气体易造成环境污染。无氯煤炭防冻液与含氯煤炭防冻液相比，其防冻性能、防腐蚀性能、稳定性更加优越，但由于其成本过高，推广使用受阻。为了开发一种性能优异、综合成本较低的防冻液产品，实验组筛选多种降凝剂复配了降凝复合剂，选择了多种缓蚀剂复配了缓蚀复合剂，并加入增稠稳定剂，通过大量试验制备成固体型低氯煤炭运输防冻液产品，按照铁道部行业标准TB/T 3208—2008《 散装颗粒货物运输用防冻液技术条件 》规定的试验方法进行了检验，各项性能指标均满足要求。为检验低氯产品的现场使用效果，将固体型煤炭运输防冻液与水通过一定比例加工生产成防冻液产品，在平朔集团安家岭露天矿、安太堡露天矿、东露天矿3个装车站的列车上进行工业试验。试验期3个月，结果表明，该新型低氯煤炭运输用防冻液产品的防冻性能、缓蚀性能均优于传统型含氯型煤炭运输用防冻液。

The traditional chlorine-containing coal transportation antifreeze has a relatively high chlorine content, which can easily cause corrosion and corrosion of coal-fired equipment, transportation equipment, and spraying equipment. At the same time, the acidic gas formed after combustion is easy to cause environmental pollution. Compared with chlorine-containing coal antifreeze, chlorine-free coal antifreeze has better antifreeze performance, anti-corrosion performance and stability. However, due to its high cost, its promotion and use are hindered. In order to develop an anti-freezing liquid product with excellent performance and low comprehensive cost, the experimental group screened a variety of pour point depressants to compound the pour point depressant compound, selected a variety of corrosion inhibitors to compound the corrosion inhibitor compound, and added thickening stabilizers. The solid low-chlorine coal transportation anti-freezing liquid product was prepared through a large number of tests. According to the test method specified in the industry standard TB / T 3208-2008 " Technical Conditions for Anti-freezing Liquid for Transportation of Bulk Granular Goods, " all performance indicators met the requirements. In order to test the field use effect of low-chlorine products, the solid coal transportation antifreeze and water are processed into antifreeze products by a certain proportion, and industrial tests are carried out on the trains of three loading stations in Anjialing Open-pit Mine, Antaibao Open-pit Mine and East Open-pit Mine of Pingshuo Group.The test period was 3 months. The results showed that the anti-freezing performance and corrosion inhibition performance of the new low-chlorine coal transportation antifreeze product were better than those of the traditional chlorine-containing coal transportation antifreeze.

薛永升1，2. 新型低氯煤炭运输用防冻液的开发及应用评价[J]. 煤炭与化工, 2023, 46(10): 123-126.

Xue Yongsheng 1, 2. Development and application evaluation of new anti-freezing fluid for low chlorine coal transportation. CCI, 2023, 46(10): 123-126.