项目实施背景
郑州环球重工机械有限公司是一家集生产，销售，研发为一体，以设计制造系列、、、等大型技术装

备为主的重型机械装备制造企业。本厂具有完善齐全的现代化机械加工设备，拥有先进的设计、工艺、工装和研制开发新产品的技术力量，也

可根据用户的要求设计加工制造各种非标准设备。
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案例分析：
2009年前往越南永福水泥厂，针对Φ2.6X13m水泥球磨机系统存在产量低，达不到理想的成效，公司在提高球磨机台时产量上狠下功夫，实施技术改造，取得了良好的效果。

实施方案-提高水泥磨（水泥球磨机）产量方法

采用磨内筛分技术。adopt screening technology inside the mill
可以达到的指标：32.5品级水泥。产量33t/h，比表面积340±10 m2/kg。熟料：石膏：混合材=60：5：35。
It can reach standards: 32.5 grade cement. Capacity 33t/h, BET 340±10 m2/kg. clinker:gypsum: admixture=60：5：35
技术要点：磨机分为3仓，一仓钢球直径100~70mm，二仓钢球直径70~40mm，三仓微段。仓位合理。仓内填充率合适。隔仓板采用双层隔仓板，

带有回球装置；三仓内增加活化装置。出磨隔仓板形式特殊。控制合理的隔仓板篦缝。衬板一仓为阶梯形状，二仓为大波纹形状，三仓为中波

纹形状。

Technical key points: The mill body can be divided into 3 compartments. In the first compartment, the diameter of the steel

ball is 100-700mm. In the second one, the diameter is 70-40mm. The third one is mini section. The compartment location is

reasonable with perfect filling rate inside the compartments. Diaphragm plate adopts the double plate device with ball-return

device,and add activation device. The out- mill diaphragm plate has special shape, and control the reasonable diaphragm plate

grate seam. The liner in the first compartment is ladder shape; the liner in the second one is big wave shape; the liner in

the third one is middle wave shape.

改造费用：隔仓板、活化装置、出磨隔仓板20万元。衬板50t，35万元。钢球微段75t，45万元。合计100万元。
Modification cost: diaphragm plate, activation device, out-mill diaphragm plate 20,0000 RMB. liner 50t, 35,0000RMB. Steel

ball mini section 75t, 45,0000 RMB. Total cost:100,0000 RMB.
经济效益：产量由13t/h提高到22t/h，电耗由76.9kwh/t降为45.0kwh/t，可节约电耗31.9kwh/t。一台磨机每年可以生产水泥22×7000=154000t

，可节电31.9×154000=4912600kwh，可节约费用0.50×4912600=2456300元。不到半年即可收回投资。经济效益显著。
Economic benefits: The capacity increases from 13t/h to 22t/h, and electricity consumption reduces from 76.9kwh/t to

45.0kwh/t. Thus it saves electricity 31.9kwh/t. One mill can produce cement 22×7000=154000t per year, and can save

electricity 31.9×154000=4912600kwh, and save cost 0.50×4912600=2456300RMB. Therefore, we can get back the investment in

less than half a year, which has lots of economic benefits.
两台水泥磨总投资200万元。满负荷时每年可生产水泥308000t，可产生490万元经济效益。
The total investment for the two cement mills is 200,0000RMB. They can produce the cement 308000t per year at the time of

full load, meaning 490,0000RMB

如果维持水泥原产量13×2×7000=182000t，则每年节电效益为0.50×31.9×182000=2902900元。1年左右即可收回投资。
If the cement capacity maintains 13×2×7000=182000t, the electricity saving value can reach 0.50×31.9×182000=2902900 RMB.

Therefore we can get back investment in about one year.
建议按照此方案实施改造。
We sugges the program for cement mill modification.