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磨球的指标定义和计算方法

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2019/11/05 09:02
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          磨球的指标定义和计算方法

              Grinding ball Index definition and calculation method

                                 Writer: Ina    Tel:+15634131183    E-mail:sinaixzl004@163.com

 

1.碎球:是指破碎面积超过磨球(钢球)面积的三分之一以上,为碎球。

 

Broken ball : means that the broken area exceeds more than one-third of the area of the grinding ball.

 

破碎率=(正常运作中磨机排出的碎球数+停机在磨机中清出破碎数)/(初装机球数+运转中添加的球数)*100

 

Breakage rate = (Qty of broken balls discharged during operation + Qty of broken balls in the mill after shutdown) / (Qty of balls installed at the beginning + Qty of balls added during operation) * 100

 

3. 耐磨钢球的磨耗计算(球磨机承载正常运转2000小时以上)

 

Wear calculation of grinding balls (ball mills operate under normal conditions for more than 2000 hours)

 

球耗=(初加球量+补加量-清出的好球量)*10³/处理的矿石量 Kg/ton

 

Wear Rate = (Qty of balls added at the beginning of operation + Qty of added balls during operation -Qty of available grinding balls cleared) *10³ / Qty of ore processed


4.失圆:钢球在使用2000h以后经检测失圆大于7%即为失圆:失圆(偏磨)=(大直径-小直径)÷平均直径×100%

 

Out of round: The roundness rate of grinding ball is tested more than 7% after using 2000h, it is considered out of round.                                                                                                                          Out of round rate (biased) = (largest diameter - smallest diameter) ÷ average diameter × 100%. 

 

5.磨球体积硬度的计算: 体积硬度=心部硬度+抽条半径四分之一部分+抽条半径二分之一部分+四分之三部分+表面硬度(各点系数相加)。如下: AVH=0.009HRC+0.63HRCCr1/4+0.203HRCr1/2+0.437HRCr3/4+0.289HRC(surface hardness)    AVH=Average volume hardness      r=½Ф

 

Formula for calculating the volume hardness of grinding balls : Volume hardness = core hardness + quarter radius of the extracted steel strip + half of the extracted steel strip + three quarters + surface hardness (addition of each point coefficient). as follows:       

                              AVH=0.009HRC+0.63HRCCr1/4+0.203HRCr1/2+0.437HRCr3/4+0.289HRC(surface hardness)    AVH=Average volume hardness      r=½Ф

 

山东胜晔磨球有限公司,坐落于美丽的泉城济南市章丘区。在中国是专门致力于生产球磨机钢球、锻造和热轧耐磨钢球和合金热处理耐磨钢棒的专业工厂,球磨机钢球年产量10万吨,耐磨锻造钢球年产10万吨。产品95%以上出口国外的30多个国家,客户遍布东南亚,非洲,拉丁美洲,与中国以及世界知名的大型矿业公司以及水泥厂,火力发电厂以及化工厂都有良好的业务合作并得到他们的好评。

目前公司拥有世界先进水平的锻造和自动轧制生产线10条,生产直径15mm-200mm的钢球,拥有全自动化热处理耐磨钢棒生产线2条,生产直径40-150mm,长度2-6米的耐磨钢棒。公司产品依次通过德国tuviso9001质量体系认证,iso14001环境管理体系认证,ohsas18001职业健康安全管理体系认证以及中国安监总局颁发的安全生产标准化证书,由于公司是采用先进的技术和自动化的工艺生产,整条圆钢是采用一次性均匀加热,以确保生产的每一粒钢球质量和硬度都是合格的。

 

公司检测设备齐全,已经通过sgs和bv两家公司双重认证为合格达标工厂。并拥有 的实验和化验室,并配有国内外先进的检测设备有光谱仪,硬度计,显微镜,跌落试验机,冲击试验机,激光线切割机等,以确保我们的产品从原材料进厂到生产加工过程并检测合格到最后发货的每一个环节都有质量控制保证以及可追溯性。

 

Shandong Shengye Grinding Ball Co., Ltd is located in the beautiful city: Zhangqiu District Jinan City. In China, we are a professional factory specializing in the production of forged and hot-rolled balls and alloy steel bars for the mills, with an annual output of 100,000 tons. More than 95% of the products are exported to more than 30 countries, with customers throughout Southeast Asia, Africa and Latin America. And we have a good business cooperation with the big renowned mining companies, cement plants, thermal and chemical power plants in China and worldwide, we have received favorable comments from them.
At present, the company has 10 production lines of forged and automatic hot rolling that are world advanced level, and produce grinding balls with diameters from 15 mm to 200 mm and several steel bars resistant to wear. Given that the company uses advanced technology and automated processes, the entire round bar is uniformly heated at one time to ensure each ball produced is of high quality.

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