磨头短程烘干机经济效益以及工艺流程
    Grinding head short-range dryers economic and technological process 1. Improve the yield by grinding head grinding machine dryers in 450-500 degrees Celsius temperature, evaporation heat transfer only 4 minutes or so, its moisture content is below 2%, and the grinding material and the gas temperature is higher, moisture evaporates quickly, not only will not affect the grinding machine is used in production, there are varying degrees of increase. When the ball mill machine production by not dry limestone 19 tons per hour to average 23.5 tons per hour, when the air temperature is high, the rain water, up to 25 to 26 tons per hour. 2. To reduce the power consumption of traditional technological process, mechanical equipment, power consumption, more complex and grinding head dryers and furnace equipped with capacity for traditional process only 10%, low drying electricity. Grinding machine is used when the output, power consumption, only for a power saving 980000 KWH. The original drying and conveying system installed capacity of 328.5 KWH, grinding head drying now 2 sets of total installed capacity of 19.4 kw, according to the drying all the original burning material actual driving time, conserve drying

      1.提高了磨机产量经磨头烘干机在450-500摄氏度温度下，仅需4分钟左右的传热蒸发，其水分可降至2%以下，加之入磨物料和气体温度较高，水分蒸发很快，不但不影响磨机台时产量，还有不同程度的提高。球磨机台时产量由不烘干石灰石时年均19吨每小时提高到年均23.5吨每小时，当大气温度高、雨水量少时，可达25-26吨每小时。
2.降低了电耗传统工艺过程复杂、机械设备多、电力消耗大，而磨头烘干机与炉膛配备装机容量仅为传统工艺10%，烘干电费低。磨机台时产量提高，电耗下降，仅此项年节电98万kwh。原烘干和输送系统装机容量328.5kwh，现在磨头烘干2 套装机总容量为19.4kw，按烘干所有原燃材料实际开车时间计，年节省烘干用电23万kwh。
3.减少了飞扬损失，保护厂区生产环境改造前烘干的物料在储存、运输、加工换料过程中除尘器跑灰，造成大量扬尘，严重污染环境，其飞灰损失按0.85%计，物料损失2300t/a。采用磨头烘干后，基本无扬尘。
4.降低了设备维护费采用磨头烘干后，每年给企业带来的直接效益总和为150万元。

      在磨机前面安装1台短程烘干机，物料和烟气直接入磨，可实现高水分时由烘干机干燥，低水分时在粉磨过程中完成。烘干机尾与磨机进料口对接，机前设置燃烧炉，依靠磨尾排风机负压将热烟气自炉膛吸入烘干机、磨机。在负压时提高蒸发速度。原燃材料采用湿料，由电子皮带秤计量配料后入磨头烘干机。为了使粘土、煤能较快吸收热量，设置了粘土和煤破碎机。为了避免湿料下料不畅，粘土、煤、铁粉在皮带秤上方设置配料斗，减少压死现象，工艺流程见图。