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沼氣脫硫設(shè)備進(jìn)行脫硫效率低的原因分析

1.脫硫效率低的原因分析:

1. Cause analysis of low desulfurization efficiency:
(1)設(shè)計(jì)因素
(1) Design factors
設(shè)計(jì)是基礎(chǔ),包括L/G、煙氣流速、漿液停留時(shí)間、氧化空氣量、噴淋層設(shè)計(jì)等。應(yīng)該說(shuō),目前國(guó)內(nèi)脫硫設(shè)計(jì)已經(jīng)非常成熟,而且都是程序化,各家脫硫公司設(shè)計(jì)大同小異。
Design is the basis, including L/G, flue gas flow rate, slurry retention time, oxidation air volume, spray layer design, etc. It should be said that at present, domestic desulfurization design has been very mature, and all of them are programmed, and the design of each desulfurization company is much the same.
(2)煙氣因素
(2) Flue gas factor
其次考慮煙氣方面,包括煙氣量、入口SO2濃度、入口煙塵含量、煙氣含氧量、煙氣中的其他成分等。是否超出設(shè)計(jì)值。
Secondly, consider the flue gas, including flue gas volume, inlet SO2 concentration, inlet soot content, flue gas oxygen content, and other components in the flue gas. Whether the design value is exceeded.
(3)脫硫吸收劑
(3) Desulfurization absorbent
石灰石的純度、活性等,石灰石中的其他成分,包括SiO2、鎂、鋁、鐵等。特別是白云石等惰性物質(zhì)。
Purity and activity of limestone, and other components in limestone, including SiO2, magnesium, aluminum, iron, etc. Especially inert materials such as dolomite.
(4)運(yùn)行控制因素
(4) Operation control factors
運(yùn)行中吸收塔漿液的控制,起到關(guān)鍵因素。包括吸收塔PH值控制、吸收塔漿液濃度、吸收塔漿液過(guò)飽和度、循環(huán)漿液量、Ca/S、氧化風(fēng)量、廢水排放量、雜質(zhì)等。
The slurry control of absorption tower plays a key role in operation. It includes PH value control of absorption tower, concentration of absorption tower slurry, supersaturation of absorption tower slurry, circulating slurry volume, Ca/S, oxidation air volume, wastewater discharge, impurities, etc.
(5)水
(5) Water
水的因素相對(duì)較小,主要是水的來(lái)源以及成分。
The factor of water is relatively small, mainly the source and composition of water.
(7)其他因素
(7) Other factors
包括旁路狀態(tài)、GGH泄露等。
Including bypass status, GGH leakage, etc.
2.改進(jìn)措施及運(yùn)行控制要點(diǎn)
2. Improvement measures and operation control points
從上面的分析看出,影響FGD系統(tǒng)脫硫率的因素很多,這些因素相互關(guān)聯(lián),以下提出了改進(jìn)FGD系統(tǒng)脫硫效率的一些原則措施,供參考。
It can be seen from the above analysis that there are many factors that affect the desulfurization efficiency of FGD system, and these factors are interrelated. Some principles and measures to improve the desulfurization efficiency of FGD system are proposed for reference.
(1)FGD系統(tǒng)的設(shè)計(jì)是關(guān)鍵。
(1) The design of FGD system is the key.
根據(jù)具體工程來(lái)選定合適的設(shè)計(jì)和運(yùn)行參數(shù)是每個(gè)FGD系統(tǒng)供應(yīng)商在工程系統(tǒng)設(shè)計(jì)初期所必須面對(duì)的重要課題。特別是設(shè)計(jì)煤種的問(wèn)題。太高造價(jià)大,低了風(fēng)險(xiǎn)大。
It is an important task for each FGD system supplier to select appropriate design and operation parameters according to the specific project at the initial stage of engineering system design. Especially the design of coal type. Too high cost, low risk.
特別是目前國(guó)內(nèi)煤炭品質(zhì)不一,供需矛盾突出,造成很多電廠燃燒煤種嚴(yán)重超出設(shè)計(jì)值,脫硫系統(tǒng)無(wú)法長(zhǎng)期穩(wěn)定運(yùn)行,同時(shí)對(duì)脫硫系統(tǒng)造成嚴(yán)重的危害。
Especially at present, the domestic coal quality is different, and the contradiction between supply and demand is prominent, which causes many power plants to burn coal types that seriously exceed the design value, and the desulfurization system can not operate stably for a long time, at the same time, it causes serious harm to the desulfurization system.
(2)控制好鍋爐的燃燒和電除塵器的運(yùn)行,使進(jìn)入FGD系統(tǒng)的煙氣參數(shù)在設(shè)計(jì)范圍內(nèi)。必須從脫硫的源頭著手,方能解決問(wèn)題。
(2) The combustion of the boiler and the operation of the electrostatic precipitator shall be well controlled so that the flue gas parameters entering the FGD system are within the design range. We must start from the source of desulfurization to solve the problem.
(3)選擇高品位、活性好的石灰石作為吸收劑。
(3) Limestone with high grade and good activity is selected as absorbent.
(4)保證FGD工藝水水質(zhì)。
(4) Ensure the quality of FGD process water.
(5)合理使用添加劑。
(5) Use additives reasonably.
(6)根據(jù)具體情況,調(diào)整好FGD各系統(tǒng)的運(yùn)行控制參數(shù)。特別是PH值、漿液濃度、CL/Mg離子等。
(6) Adjust the operation control parameters of FGD systems according to specific conditions. Especially PH value, slurry concentration, CL/Mg ion, etc.
(7)做好FGD系統(tǒng)的運(yùn)行維護(hù)、檢修、管理等工作。
(7) Do a good job in the operation, maintenance, repair and management of FGD system.
以上就是為大家介紹的有關(guān)沼氣脫硫的詳細(xì)的介紹,希望對(duì)您有所幫助.如果您有什么疑問(wèn)的話,歡迎聯(lián)系我們.我們將以的態(tài)度,為您提供服務(wù)http://www.mimi5.cn
The above is a detailed introduction to biogas desulfurization, and we hope it will be helpful to you. If you have any questions, please contact us. We will provide services for you with our attitude http://www.mimi5.cn

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