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 浮選自動(dòng)化在我國(guó)多年來(lái)徘徊不前,一直采用根據(jù)入浮煤漿中的干煤泥量來(lái)確定加藥量的前饋控制方法,而不直接以產(chǎn)品的數(shù)質(zhì)量指標(biāo)作為控制目標(biāo),導(dǎo)致浮選生產(chǎn)效率較低.針對(duì)上述問(wèn)題,研究了浮選工藝參數(shù)的檢測(cè)方法,開發(fā)了浮選漿位儀和煤漿測(cè)灰儀,設(shè)計(jì)了浮選計(jì)算機(jī)控制系統(tǒng),它根據(jù)煤漿測(cè)灰儀旁線檢測(cè)的精煤灰分,運(yùn)用模糊控制技術(shù),通過(guò)調(diào)整浮選藥劑添加量和浮選機(jī)漿位,來(lái)實(shí)現(xiàn)浮選過(guò)程的反饋控制.工業(yè)性試驗(yàn)表明,煤漿測(cè)灰儀的性能指標(biāo)接近國(guó)外先進(jìn)水平.煤泥浮選測(cè)控系統(tǒng)在淮北選煤廠的現(xiàn)場(chǎng)使用,使浮選生產(chǎn)在精煤灰分合格的前提下,得到了較高的產(chǎn)率,并降低了藥劑用量,從而保證選煤廠高效率地運(yùn)行
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:浮選自動(dòng)化在我國(guó)多年來(lái)徘徊不前,一直采用根據(jù)入浮煤漿中的干煤泥量來(lái)確定加藥量的前饋控制方法,而不直接以產(chǎn)品的數(shù)質(zhì)量指標(biāo)作為控制目標(biāo),導(dǎo)致浮選生產(chǎn)效率較低.針對(duì)上述問(wèn)題,研究了浮選工藝參數(shù)的檢測(cè)方法,開發(fā)了浮選漿位儀和煤漿測(cè)灰儀,設(shè)計(jì)了浮選計(jì)算機(jī)控制系統(tǒng),它根據(jù)煤漿測(cè)灰儀旁線檢測(cè)的精煤灰分,運(yùn)用模糊控制技術(shù),通過(guò)調(diào)整浮選藥劑添加量和浮選機(jī)漿位,來(lái)實(shí)現(xiàn)浮選過(guò)程的反饋控制.工業(yè)性試驗(yàn)表明,煤漿測(cè)灰儀的性能指標(biāo)接近國(guó)外先進(jìn)水平.煤泥浮選測(cè)控系統(tǒng)在淮北選煤廠的現(xiàn)場(chǎng)使用,使浮選生產(chǎn)在精煤灰分合格的前提下,得到了較高的產(chǎn)率,并降低了藥劑用量,從而保證選煤廠高效率地運(yùn)行