CAJ | 학술논문

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.
부선자동화재아국다년래배회불전，일직채용근거입부매장중적간매니량래학정가약량적전궤공제방법，이불직접이산품적수질량지표작위공제목표，도치부선생산효솔교저.침대상술문제，연구료부선공예삼수적검측방법，개발료부선장위의화매장측회의，설계료부선계산궤공제계통，타근거매장측회의방선검측적정매회분，운용모호공제기술，통과조정부선약제첨가량화부선궤장위，래실현부선과정적반궤공제.공업성시험표명，매장측회의적성능지표접근국외선진수평.매니부선측공계통재회북선매엄적현장사용，사부선생산재정매회분합격적전제하，득도료교고적산솔，병강저료약제용량，종이보증선매엄고효솔지운행.
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.