粉煤灰压块机的硬度是确保压块在储存和运输过程中不被破坏的重要因素。判断压块质量的一个重要标准是粉煤灰压块机压制的粉煤灰的硬度。
However, the hardness of briquettes is not only related to the purchase of high-quality pulverized coal briquetting machines but also related to many factors. So how to improve the briquetting hardness of pulverized coal briquetting machines?
1. 选择合适的煤粉粘合剂
在选择合适的煤粉作为原材料后，用户必须对煤粉粘合剂进行实验。因为合适的煤粉粘合剂是煤粉成球硬度的有效保障。
2. 确保原煤具有适当的干湿度
通常，在处理煤粉时会添加适量的水分。水分可以起到润滑的作用，减少成型系统内部的摩擦，并提高煤粉的机械强度。如果使用亲水性粘合剂，适量的水分将预先湿润煤颗粒的表面，从而促进颗粒之间的粘附。
煤粉的适宜水分比为10-15%。如果使用疏水性粘合剂，水分会降低粘合剂的效果。这时，材料的水分应控制在4%以下。总之，材料的水分含量应根据实际情况灵活控制，并控制在一个范围内。
3. 煤粉的细度
The crushing process of pulverized coal raw materials is particularly important in the entire coal ball processing process. Whether the particle size of the material after being crushed by the coal pulverizer is reasonable also determines the quality of the coal briquettes afterward. Processing coal briquettes generally requires the particle size of the material to be ≤3mm, so how to choose a good coal grinder in the production of coal powder is an important issue to be considered.