【正文】
ts, refined the process. Residual ammonia consists of three parts: Charging of the surface of the wet storage of coal, coal carbonization furnace installed pounds produced by absorbing water and added to the gas pipeline and oxygen gas collector loop pump oil within the process wastewater, total residual ammonia general Charging of coal by 14% in dollars. Residual ammonia in the traditional processing technology is the use of direct steam ammonia。蒸氨。蒸氨塔底部排出的蒸氨廢水,在與原料氨水換熱后送往生化處理裝置處理或送去洗氨。雖然近年來有運(yùn)用管式爐(導(dǎo)熱油)加熱剩余氨水來減少蒸汽耗量的工藝改良,但是要消耗大量的煤氣資源進(jìn)行加熱,仍然沒有解決實(shí)質(zhì)性問題。剩余氨水的傳統(tǒng)加工工藝是利用蒸汽進(jìn)行直接蒸氨。I65m3/h 直接蒸氨工藝設(shè)計(jì)摘要:在焦化生產(chǎn)過程中產(chǎn)生大量含酚、氰、油、氨氮等有毒、有害物質(zhì)的剩余氨水,主要來自煉焦和煤氣凈化過程及化工產(chǎn)品的精制過程。剩余氨水主要由三部分組成:裝爐煤表面的濕存水、裝爐煤干餾產(chǎn)生的化合水和添加入吸煤氣管道和集氣管循環(huán)氧水泵內(nèi)的含油工藝廢水,剩余氨水總量一般按裝爐煤 14%計(jì)。直接蒸氨工藝是在蒸氨塔的塔底直接通入,設(shè)備少,中,蒸汽直接進(jìn)入塔底廢水,蒸汽冷凝水不能回收,塔底廢水量加大,廢水出系統(tǒng)前要冷卻到 40℃,相對(duì)蒸氨工藝來說設(shè)備維修量小,工藝簡(jiǎn)樸,也一度成為蒸氨工藝的首選。本設(shè)計(jì)是采用直接蒸氨的方法進(jìn)行操作的,主要原理是:原料氨水與蒸氨廢水換熱至90~98℃后,與用于分解氨水中固定銨的5%氫氧化鈉溶液一起進(jìn)入蒸氨塔上部,塔底供入直接蒸汽將氨蒸出,氨蒸汽經(jīng)塔頂分凝器冷凝冷卻后,冷凝液作為蒸氨塔的回流,氨汽直接送到硫銨工段或進(jìn)一步冷凝成濃氨水。關(guān)鍵詞:焦化。剩余氨水。Direct the ammonia production was in the steam ammonia of the tower on the water vapor towerbottom as a distillation pyrogen. direct the ammonia production processes, equipment, onetime investment. direct the ammonia process, the steam to walk straight into the tower of waste, the condensation water is not collectable and the base of a quantity of water, waste water to cool off before the system to 40 ℃, cooling water is cooling water consumption of the size of Direct steam ammonia production through, because there is no relative steam ammonia production equipment maintenance capacity for small craft was a simple, and once became the first choice of the ammonia. This design is to direct the ammonia method of operation, the major principle is : materials ammonia water and vapour ammonia waste water for hot to 90 ~ 98 ℃, and used for dismantling ammonia the water on the 5% reveal the hydrogen of sodium solution went into the tower at the end of the ammonia, for the direct steam will steam out of the ammonia, ammonia steam condenses into the tower has run the cooling, the condensate as the ammonia of the tower, the immediate return of ammonia brought to reveal or sulphur section further condenses into water strong ammonia Steam ammonia the bottom of the ammonia waste, and materials ammonia water hot and sent to chemical processing device or handle to the ammonia.Key words:Coking, Ammonia, Residual ammonia, temperatureIII目 錄第一章 直接蒸氨工藝流程簡(jiǎn)介 ?????????????????????????????????????????????????????????????????????????????????1 原料氨水的來源和性質(zhì) ????????????????????????????????????????????????????????????????????????????????????????????1 剩余氨水的危害 ????????????????????????????????????????????????????????????????????????????????????????????????????????2 國(guó)內(nèi)蒸氨工藝面臨的問題 ????????????????????????????????????????????????????????????????????????????????????????3 直接蒸氨工藝流程 ????????????????????????????????????????????????????????????????????????????????????????????????????3第二章 物料衡算 ?????????????????????????????????????????????????????????????????????????????????????????????????????????????5 數(shù)據(jù)取值和相關(guān)參數(shù) ??????????????????????????????????????????????????????????????????????????????????????????????????5 原料氨水物料計(jì)算 ??????????????????????????????????????????????????????????????????????????????????????????????????????6 廢水物料計(jì)算 ??????????????????????????????????????????????????????????????????????????????????????????????????????????????6 成品氨蒸汽物料計(jì)算 ??????????????????????????????????????????????????????????????????????????????????????????????????6 加堿量物料計(jì)算 ??????????????????????????????????????????????????????????????????????????????????????????????????????????7 蒸汽量物料計(jì)算 ??????????????????????????????????????????????????????????????????????????????????????????????????????????7 回流比與塔頂氨氣含氨濃度的確定 ??????????????????????????????????????????????????????????????????????????8 總物料平衡計(jì)算 ??????????????????????????????????????????????????????????????????????????????????????????????????????????9 系統(tǒng)水平衡計(jì)算 ??????????????????????????????????????????????????????????????????????????????????????????????????????????9第三章 熱量衡算 ???????????????????????????????????????????????????????????????????????????????????????????????????????????10 輸入的熱量計(jì)算 ????????????????????????????????????????????????????????????????????????????????????????????????????????10 輸出的熱量計(jì)算 ????????????????????????????????????????????????????????????????????????????????????????????????????????10 結(jié)果分析 ????????????????????????????????????????????????????????????????????????????????????????????????????????????????????11第四章 精餾塔的計(jì)算 ???????????????????????????????????????????????????????????????????????????????