本文選題：低溫焦油 + 乳化　； 參考：《西安科技大學(xué)》2015年碩士論文

【摘要】：隨著干餾技術(shù)發(fā)展,低溫焦油產(chǎn)能不斷增大。為綜合利用低溫焦油,本論文將低溫焦油、水、乳化劑混合乳化制備低溫焦油乳液,并研究了低溫焦油乳液作為煤炭浮選劑的性能,最后探討了制備低溫焦油乳液初步工藝設(shè)計(jì)。本文研究了低溫焦油乳液的制備,通過單因素實(shí)驗(yàn)和正交試驗(yàn)考察了各因素對(duì)低溫焦油乳液粒徑的影響,并對(duì)其類型、穩(wěn)定性、分散性進(jìn)行表征。結(jié)果表明,制備低溫焦油乳液最佳條件為:m(油):m(水)=3:7,m(油酸):(OP-10)=3:2,乳化轉(zhuǎn)速為16000 r/min,乳化溫度為30℃,乳化劑用量為1.5%,乳化時(shí)間為6 min;低溫焦油乳液為水包油型,分散性好,室溫放置30d不分層,穩(wěn)定性較好。為了研究低溫焦油乳液浮選性能,首先考察了3種煤樣粒度組成,其次探討了低溫焦油乳液用量對(duì)浮選性能影響,最后與煤油進(jìn)行浮選試驗(yàn)對(duì)比。結(jié)果表明,太西煤比矸石易碎,存在細(xì)泥積聚現(xiàn)象,富縣、延安煤中矸石比煤易碎,但延安煤樣細(xì)泥積聚現(xiàn)象嚴(yán)重;在100 g/L礦漿濃度下,3種煤樣最佳浮選條件為:太西煤,低溫焦油乳液1.40 kg/t,仲辛醇0.08 kg/t;富縣煤,低溫焦油乳液1.20 kg/t,仲辛醇0.10 kg/t;延安煤,低溫焦油乳液2.00 kg/t,仲辛醇0.10 kg/t;低溫焦油乳液的捕收性能與煤油相當(dāng),而選擇性優(yōu)于煤油,用油量大大降低。年產(chǎn)4000噸低溫焦油乳液初步工藝設(shè)計(jì)。首先確定了工藝流程,在此基礎(chǔ)上,對(duì)主要設(shè)備進(jìn)行了物料衡算、選型計(jì)算、控制方案設(shè)計(jì),完成了帶控制點(diǎn)物料流程圖,并進(jìn)行簡(jiǎn)單的設(shè)備平面布置和廠區(qū)平面布置。
[Abstract]:With the development of the dry distillation technology, the production of low temperature tar is increasing. In order to make comprehensive use of low temperature tar, the low temperature tar, water and emulsifier are mixed to prepare the low temperature tar emulsion, and the performance of the low temperature tar emulsion as the coal flotation agent is studied. Finally, the preliminary process design for the preparation of the low temperature tar emulsion is discussed. The effect of various factors on the particle size of low temperature tar emulsion was investigated by single factor experiment and orthogonal test, and its type, stability and dispersion were characterized. The results showed that the optimum conditions for the preparation of low temperature tar emulsion were: m (oil): m (water) =3:7, m (oleic acid): (OP-10) =3:2, emulsifying speed 16000 r/min, emulsification temperature 30 The dosage of emulsifier is 1.5%, the emulsifying time is 6 min, the low temperature tar emulsion is water bag oil type, the dispersity is good, the 30d is not stratified at room temperature, and the stability is better. In order to study the flotation performance of the low temperature tar emulsion, the particle size composition of 3 kinds of coal samples is first investigated. Secondly, the effect of the dosage of low temperature tar emulsion on the flotation performance is discussed. Finally, the coal oil is carried out. The results show that the coal gangue in Yanan coal is fragile, and the gangue in Fuxian, Yanan coal is more fragile than coal, but the accumulation of coal samples in Yanan is serious. Under the concentration of 100 g/L pulp, the best flotation conditions for 3 kinds of coal samples are: Tai Xi coal, low temperature coke oil emulsion 1.40 kg/t, secondary octanol 0.08 kg/t; Fuxian coal and low temperature tar. Emulsion 1.20 kg/t, secondary octanol 0.10 kg/t; Yanan coal, low temperature tar emulsion 2 kg/t, secondary octanol 0.10 kg/t; low temperature tar emulsion collection performance is equivalent to kerosene, and selectivity is better than kerosene, oil consumption is greatly reduced. The annual production of 4000 tons of low temperature tar emulsion initial process design. On the basis of the main equipment, the main equipment Material balance calculation, selection and calculation, control scheme design, material flow chart with control points, and simple equipment layout and plant layout are completed.
【學(xué)位授予單位】：西安科技大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：TQ524;TD923.1

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