Through reforming in steady flow unit of sludge pit feeding , the work efficiency was lifted , the slime amount fed in floatation system was reduced . the consumption was dropped and the enterprise economic benefit increased under the premise of finishing all technology target 对捞坑入料装置的改进，提高了捞坑的工作效率，减少了进入浮选系统的煤泥数量，在完成各项技术指标的前提下，降低了各种材料的消耗，增加了企业的经济效益。
The automation of coal flotation has been wandering for many years in china . the production efficiency is relatively low because of the feed forward control which adds the flotation reagent based on the fine coal in feed slurry , ignoring the quantity and quality of the products . aiming at this problem , method of measuring the flotation technical parameters was studied , the slurry level meter and the slurry ash - measuring device were worked out , and the computer control system of the coal flotation was designed . the feedback control was realized by using the fuzzy logic control control technology to regulate the reagent addition and the slurry level in the flotation tank according to the concentrate ash content detectedby the coal slurry ash - measuring device developed . the industrial experiment indicates that the performance inedxes of the coal slurry ashmeasuring device have come up to the advanced levek of the world . the application of the detection and control system in huaibei coal preparation plant results in a high concentrate recovery , a decrease of the reagent consumption , ensuring a highly efficient operation 浮选自动化在我国多年来徘徊不前，一直采用根据入浮煤浆中的干煤泥量来确定加药量的前馈控制方法，而不直接以产品的数质量指标作为控制目标，导致浮选生产效率较低.针对上述问题，研究了浮选工艺参数的检测方法，开发了浮选浆位仪和煤浆测灰仪，设计了浮选计算机控制系统，它根据煤浆测灰仪旁线检测的精煤灰分，运用模糊控制技术，通过调整浮选药剂添加量和浮选机浆位，来实现浮选过程的反馈控制.工业性试验表明，煤浆测灰仪的性能指标接近国外先进水平.煤泥浮选测控系统在淮北选煤厂的现场使用，使浮选生产在精煤灰分合格的前提下，得到了较高的产率，并降低了药剂用量，从而保证选煤厂高效率地运行
In order to improve coal slime dewatering results and operational reliability , according to the comparison of screen bowl centrifuge ' s structural parameters , operational parameters and dewatering results used at home and broad , proposed that , proper design parameters should be determined by the property of coal slime ; the separation factor and manufacture level of homemade screen bowl centrifuge should be improved ; the research on sieve and wear parts should be strengthened to improve the service life of wear parts ; planetary gear differential case should be used to improve the work reliability of whole machine and the automatization level of centrifuge control should be enhanced 为提高国产离心机用于煤泥分离的效果和工作可靠性，通过对国内外同类产品的结构参数、操作参数和分离效果的比较，提出：根据国内洗选煤泥性质，确定合适的设计参数；提高国产离心机的分离因数和制造水平；加强对筛网及易磨损件的研究，提高易磨损件的使用寿命；采用渐开线行星齿轮差速器，以提高整机的工作可靠性；提高离心机控制的自动化水平。
Abstract : the automation of coal flotation has been wandering for many years in china . the production efficiency is relatively low because of the feed forward control which adds the flotation reagent based on the fine coal in feed slurry , ignoring the quantity and quality of the products . aiming at this problem , method of measuring the flotation technical parameters was studied , the slurry level meter and the slurry ash - measuring device were worked out , and the computer control system of the coal flotation was designed . the feedback control was realized by using the fuzzy logic control control technology to regulate the reagent addition and the slurry level in the flotation tank according to the concentrate ash content detectedby the coal slurry ash - measuring device developed . the industrial experiment indicates that the performance inedxes of the coal slurry ashmeasuring device have come up to the advanced levek of the world . the application of the detection and control system in huaibei coal preparation plant results in a high concentrate recovery , a decrease of the reagent consumption , ensuring a highly efficient operation 文摘:浮选自动化在我国多年来徘徊不前，一直采用根据入浮煤浆中的干煤泥量来确定加药量的前馈控制方法，而不直接以产品的数质量指标作为控制目标，导致浮选生产效率较低.针对上述问题，研究了浮选工艺参数的检测方法，开发了浮选浆位仪和煤浆测灰仪，设计了浮选计算机控制系统，它根据煤浆测灰仪旁线检测的精煤灰分，运用模糊控制技术，通过调整浮选药剂添加量和浮选机浆位，来实现浮选过程的反馈控制.工业性试验表明，煤浆测灰仪的性能指标接近国外先进水平.煤泥浮选测控系统在淮北选煤厂的现场使用，使浮选生产在精煤灰分合格的前提下，得到了较高的产率，并降低了药剂用量，从而保证选煤厂高效率地运行
The falling principle of slime water falling equipment and influence of electro magnet treatment on slime falling character are introduced . the state without drug with deep concentrating machine and how to change the water action and charged amount of slime particle are analyzed , also pointed out the application future of electro magnet concentrating technotogy 介绍了煤泥水沉降设备的沉降原理及电磁处理对煤泥沉降特性的影响，分析了深锥浓缩机在不加药剂的情况下，如何改变其煤泥颗粒的水合作用及带电量，并指出电磁浓缩技术的应用前景。
In view of the main causes of the concentrate pollution formation in fine particle flotation and the characteristics of coal slurry flotation , the mechanism of the micro - bubble cyclo - flotation columm is analyzed which includes its comprehensive utilization of micro - bubble flotation , counter - current flotation and in tensification of centrifugal field by cycloning . its structure , characteristics and industrial application effect are presented 针对细粒浮选中精矿污染形成的主要原因及煤泥浮选特点，主要分析了旋流微泡浮选柱综合利用微泡浮选、逆流浮选、旋流离心力场强化分选的机理，并介绍了旋流微泡浮选柱的结构、特点及工业应用的效果。
