合格作品 字?jǐn)?shù)6237個(gè)字
摘要
本設(shè)計(jì)的任務(wù)是年產(chǎn)200萬(wàn)噸焦炭焦化廠終冷洗苯工段的初步設(shè)計(jì)，終冷洗苯工段的主要任務(wù)是將來(lái)自硫胺工段的煤氣進(jìn)行最終冷卻并吸收煤氣中的粗苯，另外并從終冷水中制取黃血鹽。苯是有毒的物質(zhì)，在煤氣中是極不安全的，而且苯也是化工原料之一，制取出來(lái)后可以用于別的工業(yè)生產(chǎn)。終冷過煤氣之后的終冷水不能隨意排放，必須要將氰化物分離出來(lái)。設(shè)計(jì)中采用的工藝流程是，應(yīng)用間接冷卻法對(duì)煤氣進(jìn)行冷卻，并采用焦油對(duì)煤氣進(jìn)行洗苯過程，終冷煤氣之后所得到的終冷水就會(huì)被送入黃血鹽車間，利用碳酸鈉堿液完成從終冷水中制備黃血鹽的過程。這種工藝方法是現(xiàn)代煤焦化技術(shù)中比較成熟的，設(shè)計(jì)中所選用的主要設(shè)備包括：橫管式間接終冷塔、填料洗苯塔、吸收塔以及解吸塔等。終冷洗苯工段在工業(yè)生產(chǎn)中不但提高了煤氣的效率，而且還可以生成，粗苯、黃血鹽等重要的化工原料。在一定程度上來(lái)說終冷洗苯還具有極強(qiáng)的經(jīng)濟(jì)效益。
關(guān)鍵詞：洗苯；終冷；填料塔；黃血鹽
Abstract
The design task is to produce two million tons of coking coke plant wash cold benzene section in the final preliminary design, final wash cold benzene purpose of Section Section of thiamine from the final cooling gas and absorbing gas in benzene, and is from the end of cold water in the preparation ferrocyanide. Benzene is a toxic substance in the gas is extremely unsafe, and benzene is the chemical raw materials, the system can be used after taking out other industrial production. After the end of the cold over the final cold gas can not be disposed of, must be separated to cyanide. Used in the design process, the application of indirect cooling method for cooling the gas and the gas used to wash the tar benzene process, the end of cold gas obtained after the final cold water will be sent to ferrocyanide workshop, the use of sodium carbonate alkali completion of the final cold water from the liquid preparation of ferrocyanide in the process. This process is the more modern coal technologies mature, the design of the selected main equipment includes: horizontal tube indirect cooling tower end, packing benzene wash tower, absorption and desorption tower. Section in the final benzene wash cold, not only in industrial production, increased gas efficiency, but also can generate, benzene, ferrocyanide, and other important chemical raw material. A certain extent, the final wash cold benzene also has strong economic benefits.
Keywords: wash benzene; final cold; packed tower; ferrocyani
第一章 緒論 1
1.1產(chǎn)品應(yīng)用領(lǐng)域 1
1.2工藝流程的發(fā)展概況 3
1.3設(shè)計(jì)所在地區(qū)的氣象條件 4
第二章 工藝流程的論證……………………………………………..7
2.1 終冷工藝及設(shè)備……………………………………………..7
2.1.1終冷和機(jī)械化除脫萘工藝流程…………………….....8
2.1.2終冷和焦油洗萘工藝流程……………………….........8
2.1.3洗油洗萘和終冷工藝流程……………………….........9
2.1.4終冷洗油洗萘工藝流程…………………………….…9
2.1.5終冷輕焦油洗萘工藝流程……………………….........9
2.2 洗苯工藝及設(shè)備…………………………………………….10
2.2.1焦油洗油洗苯………………………………………....13
2.2.2輕柴油洗苯……………………………………….…...13
2.2.3吸收劑的選擇…………………………………………13
2.2.4填料材質(zhì)的選擇…………………………………...….14
2.2.5填料性能的評(píng)價(jià)………………………………………14
2.2.6吸收操作對(duì)塔設(shè)備的要求………………………...….15
2.3 黃血鹽工藝及設(shè)備……………………………………....….15
2.4本設(shè)計(jì)所選用的工藝流程和設(shè)備確定………………….….16
第三章 工藝詳述 …………………………………………………….17
3.1 工藝生產(chǎn)過程詳述 ………………………………………….17
3.2 主要設(shè)備簡(jiǎn)結(jié)構(gòu)說明 ……………………………………….20
3.2.1 帶有焦油除萘去的終冷塔 …………………………...20
3.2.2 木格式填料洗苯塔 …………………………………...20
3.2.3黃血鹽解吸和吸收塔………………..……………......21
第四章 工藝計(jì)算 …………………………………………………….22
4.1終冷工藝及設(shè)備計(jì)算 ………………………………………..22
4.2 洗苯工藝及設(shè)備計(jì)算 ……………………………………….35
4.3黃血鹽工藝計(jì)算 ……………………………………………..40
4.4原材料消耗額定及消耗量表 ………………………………..44
4.5動(dòng)力消耗量 …………………………………………………..44
4.6設(shè)備一覽表溶萘的隔板式終冷器設(shè)備規(guī)格 45
第五章 車間布置 50
第六章 非工業(yè)專業(yè)要求 51
6.1公用工程 51
6.2環(huán)境保護(hù)和安全衛(wèi)生 51
6.3節(jié)能 53
第七章 技術(shù)經(jīng)濟(jì) 54
7.1投資估算： 54
7.2成本核算 54
7.3經(jīng)濟(jì)效益評(píng)估 55
7.4成本估算表 56
結(jié)束語(yǔ) 58
致謝 59
參考文獻(xiàn) 60
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