利用焦化工艺处理废塑料技术研究 Ⅱ. 200 kg焦炉中试试验
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摘要: 利用200 kg焦炉考察两种废塑料(PS和WMP)与首钢炼焦配煤按不同比例均匀混合共焦化所得焦炭的质量变化规律，以期能为焦化工艺处理废塑料技术的工业应用提供基础数据。研究表明：废塑料与煤共焦化所得焦炭冶金焦率和焦炭质量降低明显，且随着废塑料添加比例增加，所得焦炭质量劣化程度整体加大；与添加同比例的PS相比，添加WMP虽得到较差的冶金焦率，但所得焦炭的转鼓强度（M40和M10）和反应后强度（CSR）均优于添加PS的情形；废塑料与炼焦配煤简单混合共焦化，严重影响焦炭质量，不能应用于工业实践。Abstract: Using 200 kg coking-oven, the quality of the coke from the co-coking of coal with PS (polystirene) and WMP (waste mixed plastics) was studied to provide fundamental data for further industrial application. The results showed that the yield of metallurgical coke decreased obviously and at the same time, the quality of coke also decreased with the increasing of percentages of waste plastics added. Though the yield of metallurgical coke was much lower for WMP addition, co-coking of coal with WMP got better coke quality indexes of M40, M10 and CSR than co-coking of coal with the same ratio of PS. It was proved that co-coking of coking coal only with waste plastics simply couldn't be applied in industry as a solution of “white pollution”.
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Key words:
- waste plastics /
- coal /
- coke /
- co-coking
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