Predictive Process Control of Crowded Particulate by James E. Funk

By James E. Funk

Wisdom is the central factor; for this reason get knowledge; and with all thy getting, get knowing. Proverbs 4:7 within the early chapters of the publication of Proverbs there's a robust emphasis on 3 phrases: wisdom, realizing, and knowledge. might be we will be able to observe those phrases to our philosophy at the back of the expertise of Predictive procedure regulate. wisdom is the buildup of data supplied by means of schooling as we commence to shop the knowledge in our brains that are supposed to organize us for the demanding situations of the producing surroundings. It applies to each point and each chance of schooling, formal and casual. this is often just to comprehend, with none requirement other than a very good reminiscence, and is the root for the subsequent concepts. realizing is the assimilation of data, or the pondering method, as we commence to rearrange and rearrange the information we all know for fast remember because it can be wanted. This additionally applies to each point and chance of schooling. it truly is Know-Why established upon what we all know, and it calls for a few scepticism of oversimplified solutions and a starvation for psychological consistency. knowledge is the applying of either wisdom and figuring out in genuine existence organisations. As we follow either our wisdom and figuring out in these occasions, all 3 are extra more advantageous by way of every one innovative adventure. this is often that extraordinary knowledge - to use our schooling established upon Know-why, which used to be dependent upon wisdom - which supplies the boldness we have to enhance in all levels of performance.

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32 Predictive Process Control The erroneous assumption is frequently made that powder samples do not contain any agglomemtes. A better assumption would be to assume agglomemtes are present until proven othelWise. The strength of agglomemtes can vary as functions of the processes that caused them to form, which means some agglomemtes break easily while other agglomemtes are much more difficult to eliminate. Unless sample prepamtion techniques (and corresponding process techniques) are designed to eliminate agglomemtes, any remaining agglomemtes may break apart during labomtory analyses or during processing, thereby causing unexpected and unexplainable analysis or process variations.

Many reasonably priced instruments, which cover this range of particle sizes, can be used to implement PPC. A typical industrial response to this encouragement for better characterization has frequently been to push the particle size distribution analyses and other characterizations onto raw material suppliers. It may be less expensive for the end user in the short term, but unexpected and unexplained spikes in losses can consume such savings very quickly. Remember that the PPC approach utilizes particle physics measurements, based on measured particle size analyses, as a method to control and to fine tune the production process.

I " . . . . .. .. .. II . . . .. II III II . . .. II .. .. II .. ,":::1:: . : .. " , .. ". II III .......... II • .. I II .. II .. " ........ " 400~--------~--------~--------~--------~------~ 1375 1400 1425 1450 Specific Gravity gil 1475 1500 Figure 1-1. Brookfield viscosity as a function of suspension specific gravity for a return dry scrap in a whiteware plant. properties in its virgin condition then the same would be expected in the recycled dry scrap. In fact the return dry scrap should be even more constant than a specific virgin batch since it is buffered by blending with portions of earlier return dry scrap.

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