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3-(4-chlorophenyl)-4-phenyl-4,5-dihydro-1H-pyrazole 2-(chloromethyl)-3-methylpyridinehydrochloride 1-(2-bromo-4-methylphenyl)ethanone 3-chloroisoquinoline-4-carbonitrile 5,8-dichloropyrido[3,2-d]pyridazine 2-bromomalononitrile 2-(4-(bromomethyl)phenyl)benzo[d]thiazole 1-(bromomethyl)-3-methoxy-2-nitrobenzene 6-bromo-1H-[1,2,3]triazolo[4,5-b]pyridine 4-iodo-2-((trimethylsilyloxy)methyl)thiazole 6-iodoimidazo[1,2-a]pyridine-3-carbonitrile 2-(4-chlorophenyl)-2-morpholinoacetonitrile 4-chloro-7H-pyrrolo[2,3-d]pyrimidine 4-chloroisothiazole 5-bromo-6-chloro-1H-indole 7-chloro-3H-imidazo[4,5-b]pyridine ethyl3-(4-formylphenyl)propanoate 2,3-dibromobenzaldehyde 1-(5H-chromeno[2,3-b]pyridin-7-yl)ethanone 5H-chromeno[2,3-b]pyridin-5-one 3-chloroisoquinoline-4-carbaldehyde (E)-2-(3-oxoprop-1-enyl)benzaldehyde methyl4-formyl-3-nitrobenzoate 5,6-dimethoxy-2,2-dimethyl-2,3-dihydro-1H-inden-1-one 1-methylbicyclo[4.1.0]heptan-3-one 3-nitro-4-(trifluoromethoxy)benzaldehyde 2-hydroxyquinoline-6-carbaldehyde 2-nitro-3-(trifluoromethyl)benzaldehyde 1-(2-fluoro-4-methoxyphenyl)propan-2-one tert-butyl3-fluoro-4-oxopiperidine-1-carboxylate tert-butyl3-oxopropylcarbamate 2,2-dimethylcyclohexanone 9H-carbazole-3-carbaldehyde N,N-dimethyl-2-oxoacetamide 2-methylpent-4-yn-2-ol 3-tert-butyl-4-hydroxybenzonitrile 4-bromo-2-tert-butylphenol 1,3-dibutoxypropan-2-ol methyl4-hydroxyquinoline-6-carboxylate methyl3-cyano-4-hydroxybenzoate 4-chloro-6-methoxyquinolin-7-ol 3,4-dihydro-2H-benzo[b][1,4]oxazin-7-ol 2-(2-aminothiazol-5-yl)ethanolhydrochloride (R)-ethyl2-chloropropanoate (S)-4-amino-5-(4,4-dimethylcyclohexylamino)-5-oxopentanoicacid (1s,4s)-4-hydroxycyclohexanecarboxylicacid (S)-2-(tetrahydrofuran-3-yloxy)aceticacid (1S,4R)-1-methyl-4-(prop-1-en-2-yl)cyclohex-2-enol (R)-4-(hydroxymethyl)oxazolidin-2-one (S)-4-(hydroxymethyl)oxazolidin-2-one 化工資訊 “這次裝置檢修，第二反應(yīng)器攪拌器A251機(jī)封可能要更換?！泵し植烤巯N運(yùn)行部聚丙烯裝置區(qū)設(shè)備主任劉培柱、設(shè)備員鄭義吉在檢修前研究反應(yīng)器關(guān)鍵設(shè)備參數(shù)時(shí)提出了建議，可一場(chǎng)新冠疫情，進(jìn)口設(shè)備供貨源無(wú)疑是一個(gè)大問(wèn)題。
攪拌器A251是3號(hào)裝置第二反應(yīng)器運(yùn)行關(guān)鍵設(shè)備，其正常運(yùn)行能確保反應(yīng)器內(nèi)粉料混合、撤熱以及各反應(yīng)成分的分散，一旦A251出現(xiàn)突停，第二反應(yīng)器就只能進(jìn)行停車處理。
“決不能因?yàn)樵O(shè)備配件影響裝置檢修進(jìn)度?！?號(hào)聚丙烯裝置檢修前一個(gè)月，劉培柱和鄭義吉便早早籌劃，預(yù)判性針對(duì)裝置設(shè)備檢修進(jìn)行檢查、推演，并結(jié)合攪拌器工況在實(shí)際運(yùn)行中出現(xiàn)的問(wèn)題展開(kāi)逐一分析研究，針對(duì)攪拌器的構(gòu)造要求，搜索國(guó)內(nèi)機(jī)封類型。
“既然不可能完全進(jìn)行復(fù)制、粘貼，那我們就想辦法在這個(gè)基礎(chǔ)上進(jìn)行改造優(yōu)化，完全根據(jù)我們的實(shí)際工況來(lái)‘量身定制’?！痹跈C(jī)封選型遇到瓶頸時(shí)，兩個(gè)人又不約而同地提出了攻關(guān)思路，經(jīng)過(guò)多次篩選、否定、再篩選，兩人一致認(rèn)為川密機(jī)封比較符合第二反應(yīng)器的使用要求。
確定了基本模型后，劉培柱、鄭義吉根據(jù)裝置設(shè)備運(yùn)行的實(shí)際情況、各自積累的經(jīng)驗(yàn)對(duì)攪拌器密封進(jìn)行了多次的優(yōu)化改造，列出設(shè)備配合國(guó)產(chǎn)化攻關(guān)方案，提交技術(shù)圖紙，并模擬實(shí)際工況對(duì)攪拌器密封的各設(shè)計(jì)參數(shù)進(jìn)行一一驗(yàn)證，不斷進(jìn)行微調(diào)整，確保攻關(guān)成果更加安全可靠，并于4月12日，在第二反應(yīng)器攪拌器A251實(shí)現(xiàn)首次安裝試用，更換上川密機(jī)封。
該裝置區(qū)利用最近一次進(jìn)行擠壓機(jī)搶修消缺的契機(jī)，對(duì)第二反應(yīng)器攪拌器進(jìn)行開(kāi)釜檢查校驗(yàn)，機(jī)封運(yùn)行良好，無(wú)泄漏情況。機(jī)封國(guó)產(chǎn)化改造達(dá)到進(jìn)口配件標(biāo)準(zhǔn)，有效降本。
