中国煤炭
中國煤炭
중국매탄
China Coal
2015年
9期
83-88
,共6页
浮选%药剂优化%重介系统%有害泡沫%工业性试验
浮選%藥劑優化%重介繫統%有害泡沫%工業性試驗
부선%약제우화%중개계통%유해포말%공업성시험
flotation%reagent optimization%dense medium system%harmful foam%industrial experiment
由于入选煤种和煤质的复杂多变，很难根据入浮煤泥煤质的变化及时调整浮选药剂的用量，这就会在浮选过程中导致重介生产系统中的多个环节产生有害泡沫.通过实验室药剂优化试验，选择了7131型捕收剂－仲辛醇药剂组合并进行工业性试验，解决了入选复杂煤种选煤厂由于浮选药剂制度引起的重介系统有害泡沫问题.试验结果表明，配煤入选时捕收剂最高耗量、最低耗量和平均耗量较原柴油浮选时的耗量分别降低了69.2％、39.7％和62.3％，起泡剂最高耗量和平均耗量分别降低了90.1％和74.1％，且可以有效地防止合格介质桶、磁选机尾矿和煤泥回收高频筛上有害泡沫的产生.
由于入選煤種和煤質的複雜多變，很難根據入浮煤泥煤質的變化及時調整浮選藥劑的用量，這就會在浮選過程中導緻重介生產繫統中的多箇環節產生有害泡沫.通過實驗室藥劑優化試驗，選擇瞭7131型捕收劑－仲辛醇藥劑組閤併進行工業性試驗，解決瞭入選複雜煤種選煤廠由于浮選藥劑製度引起的重介繫統有害泡沫問題.試驗結果錶明，配煤入選時捕收劑最高耗量、最低耗量和平均耗量較原柴油浮選時的耗量分彆降低瞭69.2％、39.7％和62.3％，起泡劑最高耗量和平均耗量分彆降低瞭90.1％和74.1％，且可以有效地防止閤格介質桶、磁選機尾礦和煤泥迴收高頻篩上有害泡沫的產生.
유우입선매충화매질적복잡다변，흔난근거입부매니매질적변화급시조정부선약제적용량，저취회재부선과정중도치중개생산계통중적다개배절산생유해포말.통과실험실약제우화시험，선택료7131형포수제－중신순약제조합병진행공업성시험，해결료입선복잡매충선매엄유우부선약제제도인기적중개계통유해포말문제.시험결과표명，배매입선시포수제최고모량、최저모량화평균모량교원시유부선시적모량분별강저료69.2％、39.7％화62.3％，기포제최고모량화평균모량분별강저료90.1％화74.1％，차가이유효지방지합격개질통、자선궤미광화매니회수고빈사상유해포말적산생.
The dosages of the flotation reagents are difficult to regulate timely basing chan-ging of flotation coal slime quality due to complicated variable of the coal types and qualities. Ac-cording to flotation regent laboratorial optimal experiment,the author selected to combine 7 1 3 1 collector and octanol to conduct industrial experiment,which solving harmful foams problem in dense medium system through flotation reagent optimizations when coal preparation plant select-ed complex coal types. The results showed that when the coal blending were selected,comparing with diesel flotation,the highest consumption,the lowest consumption and the average con-sumption of collectors decreased 69.2%,39.7% and 62.3%,the highest consumption and aver-age consumption of foaming agent decreased 90.1% and 74.1% ;and it effectively prevented pro-ducing harmful foams in qualified medium bucket,tails magnetic separator and high frequency screen of coal slime recycle.
