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目前,国内耐高温输送带一般都采用织物芯作为骨架材料,执行国家标准GB/T20021-2005,其将耐热等级分为T1、T2、T3、T4四个台阶,对应的温度分别是100℃、125℃、150℃、175℃。对T4型耐高温输送带进行调查,其现场使用寿命只有3～6个月,带子运行过程中出现的主要问题是覆盖胶起泡和层与层之间的脱离。随着钢铁、水泥、焦化等企业生产效率的提高,如水泥厂熟料出炉后减少了冷却时间,其温度达到150～200℃,干熄焦焦炭出炉后温度也在170℃以上,客户对带子的使用寿命提出了越来越苛刻的要求,有必要大幅度提高耐高温输送带的产品质量。本文主要针对T4型耐高温输送带,从结构设计入手,作了相关研究,取得了新的突破。
At present, the domestic high temperature conveyor belt generally use the fabric core as the skeleton material, the implementation of national standards GB / T20021-2005, which will be divided into heat-resistant grade T1, T2, T3, T4 four steps, the corresponding temperature is 100 ℃ , 125 ° C, 150 ° C, 175 ° C. The investigation of T4 high temperature conveyer belt showed that the on-site service life was only 3 to 6 months. The main problems that occurred during the operation of the tapes were the covering glue blistering and the detachment between the layers. As steel, cement, coking and other enterprises to improve production efficiency, such as cement clinker baked out after reducing the cooling time, the temperature reached 150 ~ 200 ℃, the temperature of the coke after the quenching coke is also above 170 ℃, the customer of the tape The service life of more and more demanding requirements, it is necessary to significantly improve the high temperature conveyor belt product quality. This paper mainly for T4 type high temperature conveyor belt, starting from the structural design, made a related research, and made new breakthroughs.