LYWS-8高硫煤脱硫添加剂

LYWS-8脱硫添加剂LYWS-8高硫煤脱硫添加剂

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2017-12-07 06:01:35
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洛阳万山高新技术应用工程有限公司

洛阳万山高新技术应用工程有限公司

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LYWS-8高硫煤脱硫添加剂 洛阳万山*应用工程有限公司

地址:洛阳市凯旋西路29号 邮 编:471000 
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LYWS-8高硫煤脱硫添加剂 洛阳万山*应用工程有限公司地址:洛阳市凯旋西路29号 邮 编:471000  郭女士:   : :淘宝店地址http://98960.taobao.com阿里旺旺:lywsq1234 公司 http://www.wanshan.com 技术简介一、现行脱硫装置面临改造2012年1月1日起,环保部实行新的SO2排放标准,除了使用高硫煤矿区的火电厂SO2的排放浓度在400mg/m3以外,所有在役火电机组都要达到200mg/m3。十一五期间,火电企业安装的脱硫装置均是按环境主管部门的批复文件和现行的大气污染排放标准的规定设计建造的,脱硫装置使用寿命基本与机组同步,如果标准提高到200mg/m3,即使火电厂应用的是设计煤种也需要对脱硫设备进行改造。另外,对于实际含硫量为3%左右的煤,达到200mg/m3的排放要求,从技术及设备、运行管理上的要求更为严格。近年来受电煤质量变差,含硫量普遍升高的影响,电力企业已耗费巨资对不能达标的脱硫装置进行了不同程度的改造,如果大幅度降低现役机组SO2排放限制,在电煤质量短期内得不到根本好转的条件下,这些机组势必又将开展新一轮现役机组的脱硫改造。甚至部分脱硫装置要推倒重建。我国电煤稳定性差,大部分电厂燃煤硫份、灰分、发热量波动大、运行值与设计参数偏差较大,严重影响脱硫装置运行稳定性,从进行了火电厂脱硫工程后评估的电厂分析,约60%的电厂燃煤含硫量超出设计值,如湖南某电厂,设计硫份0.77%,实际平均硫份1.17%,zui高硫份超过5%。二、火力发电厂燃煤锅炉高硫煤脱硫添加剂某电厂燃煤机组,脱硫系统设计硫份2.9%,由于某电厂及周边地区的煤种几乎都是高硫煤,硫份远高于3.0%,原设计脱硫装置在实际运行中达不到设计要求,不能达标排放(小于200mg/Nm3)。通过对脱硫系统的局部治理技改,也只能在燃用低硫煤和掺烧低硫煤的情况下,而且还需要机组降负荷运行才能勉强达标排放。由于*燃用超出设计硫份的煤,导致脱硫系统无法正常运行,随着越来越严格的环保标准的实施,脱硫装置被迫进行增容改造工作,脱硫装置的增容改造动辄耗资数千万,改造施工周期6—8个月,给电厂带来*的经济及环保压力。目前节能减排形势严峻,结合环保限期整改要求,采用LY-WS高硫煤脱硫添加剂进行试验,以达到提高脱硫效率,实现SO2达标排放的目的。通过试验证明,火力发电厂燃用高硫煤,采用LY-WS高硫煤脱硫添加剂,在火力发电厂燃煤锅炉全烧脱硫塔SO2入口浓度7000mg/Nm3 -13000 mg/Nm3的高硫煤,不烧低硫煤,在发电量满负荷、高负荷、超负荷的情况下,不用扩容,不用改造,不用投资,不用配煤掺烧,不用投加石灰,脱硫效率达到200mg/Nm3以内。实施新的SO2达标排放标准,每台机组每年可为电厂节约数千万元的资金。在国内尚属*,为我国高硫煤用于燃烧发电找到一条根本的出路,拓宽了高硫煤的用煤渠道,用高硫煤不用低硫煤,可为电厂创造巨大的经济效益,能够完成国家下达的节能减排目标。三、附件 某电厂采用燃煤锅炉高硫煤脱硫添加剂实验数据脱硫添加剂的试验方法2010年9月7日开始在#2吸收塔投加LY-WS-8型脱硫添加剂,投加位置在#2吸收塔排水池。投加后,首先对脱硫添加剂进行稀释,然后进行搅拌均匀,用排水池泵连续打入#2吸收塔。运行人员记录脱硫添加剂加入前、后的机组负荷、原净烟气二氧化硫浓度、供浆量、吸收塔浆液PH值及脱硫效率的变化情况,同时由化验班对吸收塔浆液和石膏进行取样分析,通过试验数据对比分析脱硫添加剂加入后效果。试验计划进行三天,首日加入一次脱硫添加剂,之后每天补加一次,试验期间,运行人员按照《脱硫运行规程》的要求正常进行操作。 附表3、#2FGD脱硫添加剂试验记录添加时间机组负荷 原烟气SO2 净烟气SO2 烟囱SO2 吸收塔PH值吸收塔补浆量 吸收塔密度添加剂加入量脱硫效率备注MWmg/m3mg/m3mg/m3tkg/m3kg%加入脱硫添加剂之前9月7日8:00162802197813485.10 25.81038/89.3/9:002638975283822215.00 36.81044/77.4加3t石灰10:002708365159924015.00 36.81059/64.7/11:002727813153619924.94 36.81065/80.5/12:00271812724318864.99 36.81072/90.4/13:00271769720320475.00 36.81065/85/14:002738044172021684.88 36.81088/82.2/15:002728523192021544.96 36.81091/81.3加2t石灰16:002748574245324024.79 36.81099/77.8/17:002738627273626254.73 36.81100/76.2/18:002258486235420854.91 36.81114/79.3 18:30加入排水池加入脱硫添加剂之后9月7日19:002207565173116715.00 36.81125加入脱硫添加剂82.8 19:00启泵打入吸收塔19:3022675324954785.26 36.81145/95.2 加入添加剂20分钟后见效20:0022169372222055.80 34.21161/97.6 21:0027270821812205.74 18.31125/97.9 22:0028070352012855.76 101133/97.8 23:0027763681232275.70 191129/98.2 0:0028167312003475.68 331155/96.5 9月8日1:0028266861702955.77 201205/97.2 2:0027167432073515.70 341205/96.8 3:0024971802963995.80 30.71220/95.3 4:0021268363656185.80 18.51221/93.2C循泵3:27跳闸跳闸,4:15启动5:0016370032563915.80 11.51226/94.6 6:0016565982864105.70 17.61220/94.2 7:0016860102873445.80 17.41206/94.6 8:0016559562343095.80 12.91212/95.9 9:0021170963055025.77 36.81202加入脱硫添加剂94.79:00加,9:05启泵打入吸收塔10:0026871501622875.89 36.81216/97.3 11:0027272561973175.83 36.81217/97.1 12:0026968471883265.81 32.81223/96.9 13:0026965581883115.77 32.9坏/96.7 14:0027465912423265.75 35.8坏/96.9 15:0027261622142685.83 36.8坏/96.5 16:0027564152513205.84 33.5坏/96.3 17:0027465282233215.88 32.5坏/95.7 18:0027357442783125.91 32.4坏/95.2 19:0026857372242975.93 24.31292/95.8 20:0028354962412815.93 24.81292/95.9 21:0027653031872925.94 20.71284/96.4 22:0027453592423355.85 181291/95.3 23:0024453761893725.93 291303加入脱硫添加剂95.122:45加,23:00启泵打入吸收塔0:0025355792603255.89 261304/95.4 9月9日1:0020562952733775.97 24.51296/95.1 2:0016761203333935.97 181297/93.6 3:0015861553164005.86 141286/94.5 4:0015759882904115.84 15.21280/93.8 5:0015960492743985.82 171277/93.6 6:0016063053114205.83 19.71275/93.4 7:0016259162453205.84 18.21260/94.8 8:0016257312543405.85 25.11254/94.4 9:0024663323124405.96 36.81265加入脱硫添加剂94.29:15加,9:30启泵打入吸收塔10:0024562532403355.99 36.81271/95.6 11:0024362072623526.00 36.81275 95 12:0024668002853666.00 36.81262 95.2 13:0023063602573746.02 36.81263 95.3 14:0021857892182506.07 361266 95.2 15:0025057992202786.00 301246 96 16:0027760642103025.96 361245 96 17:0026064302164465.95 361265 94.3 18:0019863673134106.03 34.71269加入脱硫添加剂93.818:05加在石灰石浆液箱19:0021068823484856.02 36.81275 94 20:0016760552692996.15 34.81275 94.5 21:0016366243083976.18 33.61288 94.4 22:0015371545416706.15 33.21303加入脱硫添加剂90.521:30加在石灰石浆液箱23:0015272586256856.18 32.81287加入脱硫添加剂90.522:50加在石灰石浆液箱0:0015379587318806.17 34.91279加入脱硫添加剂88.900:10加在石灰石浆液箱9月10日1:0015680556668496.14 34.21272 89.7 2:0015377463965196.12 33.91268 93.1 3:0015578344414976.13 34.71261 93.2 4:0016676734445766.11 33.51273 93.4 5:0016774014145276.10 34.51230 93.6 6:0016778865026426.10 321242 92.4 7:0016576794505426.12 34.51267加入脱硫添加剂93.16:20加在石灰石浆液箱8:0016374284474936.00 34.41267 93.3 9:00试验结束!!!!!!!!!!!!!!!!!!!试验期间两台机组日平均负荷232.4MW,试验期间脱硫入口SO2浓度在5303~8975 mg/Nm3,平均入口SO2浓度6405mg/Nm3,平均供浆27.3 m3/h,平均PH值5.80, 净烟气平均SO2浓度285.2mg/Nm3,烟囱平均SO2浓度379.9mg/Nm3,平均脱硫效率95.3%。试验结果表明,加入脱硫添加剂后,能够提高脱硫系统对煤种硫份变化的适应范围,脱硫效率提高10%-15%,能够实现二氧化硫达标排放。附表4:#2FGD脱硫添加剂使用记录日期时间机组负荷 原烟气SO2 净烟气SO2 烟囱SO2 吸收塔PH值吸收塔补浆量 吸收塔密度添加剂投加记录脱硫效率备注MWmg/m3mg/m3mg/m3tkg/m3加入时间启泵时间加入脱硫添加剂% 9月11日        11:40 加入脱硫添加剂  9月12日        8:30 加入脱硫添加剂          9:30 加入脱硫添加剂          22:08 加入脱硫添加剂  9月13日11:0027380965054385.84 36.8117511:0011:10加入脱硫添加剂95.1 12:0026273692942465.86 36.81177///96.2 13:0027172703132325.84 36.81181///96.3 14:0027166502201695.86 36.81188///97.4 15:0026268192221535.87 36.81194///97 16:0025862401751435.90 301206///97.2 17:0025661232031395.85 36.81208///96.8 18:0025062482131555.87 36.81208///96.6 19:0026062952121675.84 36.81211///96.9 19:3025361581721615.85 36.81213///97.1 20:0025761021801595.87 36.81210///97.1 21:0024661582301555.91 36.11218///96.6 22:0025174163322345.84 36.81215///96.2 23:0024965012071735.89 36.81220///97.5 0:0025568783033325.86 36.812020:120:25加入脱硫添加剂95.9 9月14日1:0025968132891975.87 36.81212///96 2:0025468303242365.91 36.81218///95.9 3:0025564152491935.93 36.81219///96.1 4:0024962092471985.97 36.81226///96.3 5:0025762922401755.97 36.81239///96.5 6:0025160632181595.98 36.81241///96.7 7:0025761952612125.90 36.41222///96.2 8:0025864903632995.89 36.812468:208:38加入脱硫添加剂95.1 9:002566517 热工维护2755.85 36.81245/// 热工维护 10:00262966 热工维护34665.86 36.81217/// 热工维护增压风机跳闸11:0026272821661475.87 36.81230///98.2 12:0026775781953065.83 36.8122112:4014:00加入脱硫添加剂98 13:0027066911062205.83 36.81202///98.8 14:0027364091001775.83 36.81199///98.8 15:002701637164531285.86 201196///70增压风机跳闸16:002636028892545.89 36.81196///99 17:002706014451115.82 36.81190///99.4 18:002726068168955.87 36.81187///97.8 19:00 51141711215.86 36.81187///96.1 20:002787953183455.84 36.81189///97.6 21:0027664021631475.86 36.81187///97 22:0027566171991335.88 36.81189///96.2 23:0027768852151735.85 36.81179///96.2 0:0026969752401905.82 36.81183///95.6 9月15日1:0019871211761255.98 27.91180///96.7 2:0019669972711795.92 21.41173///95.3 3:0019463842511595.89 30.81177///95.6 4:001936484239855.88 30.21175///96 5:0019567502611515.87 36.81157///95.2 6:0019460882161325.92 30.61162///95.5 7:0019563002001425.90 30.41154///96.1 8:0020060022031225.89 30.11153///95.5 9:0022957531991645.84 36.81149///95.5 10:0023262762312415.87 34.81149///95.6 11:0023568203402565.87 35.2114811:1012:25加入脱硫添加剂94.3 12:0022962702912265.87 36.81148///94 13:0027771223402975.82 36.81150///94.9 14:0027868292992215.74 36.81150///94.8 15:0027466302492005.84 36.81151///95.7 16:0027768412742255.87 36.81153///95.5 17:0027264962521855.85 36.81152///95.3 18:0027969272702135.84 36.81161///95.1 19:0027768613002175.83 36.81166///94.7 20:0027973023282795.80 36.8116720:5521:04加入脱硫添加剂94.6 21:0027673393343065.77 36.81168///94.8 22:0027878313333115.70 36.8117022:3522:45加入脱硫添加剂95.6 23:0027779083323025.68 36.81172///95.4 0:0027680453683075.62 36.81175///94.5 9月16日1:0027884084403435.64 36.811721:104:05加入脱硫添加剂94.2 2:0022179732882045.84 36.81174///95.4 3:0019478082351836.00 36.81175///96 4:0019687943622775.93 33.51171///94.7 5:0019393062961925.94 36.81170///96 6:0019482272481855.97 36.81169///95.8 7:0019377152571525.98 36.21167///95.7 8:0019780452481815.96 36.81166///96 9:0026087463312995.84 36.811679:209:52加入脱硫添加剂95 10:0026784313733025.89 36.81168///95.1 11:0026187512531835.91 36.81171///96.6 12:0026783561941675.91 36.81173///97.7 13:0026783282241745.92 36.81175///97 14:0026579711861675.92 36.81181///97 15:0026790952191875.92 36.81184///97.5 16:0026587081891355.96 36.81190///97.3 17:0026585201961615.97 36.81193///97.5 18:0026687852041705.96 36.81193///97.5 19:0026887121951635.97 36.81199///97.4 20:0027087621881505.96 36.81200///97.5 21:0026888412122145.97 36.81205///96.9 22:0026490842492285.95 36.81205///97.1 23:0022787832482155.97 36.81205///97 0:0022784811302176.00 36.81202///100 9月17日1:0023088442412476.00 33.11201///96.3 2:0020788032132166.00 31.11204///97.3 3:0020589862592146.00 30.81205///95.7 4:0021391902692356.00 32.112054:005:25加入脱硫添加剂95.8 5:0021492192812375.99 36.51210///96 6:0021390682242215.99 36.51223///96.8 7:0021796422312146.00 36.51227///97.2 8:0021793252412446.00 36.21216///96.9 9:0024093042683005.90 3512019:009:22加入脱硫添加剂97.1 10:00///////////9:48故障停运11:00/////////// 12:00/////////// 13:00/////////// 14:00/////////// 15:00/////////// 16:00/////////// 17:00/////////// 18:00/////////// 19:00///////////19:03启动运行20:0027783482992895.78 36.81162///95.7 21:0026178242062025.92 36.81162///96.8 22:0026176682162255.93 36.81163///96.8 23:0026485733422575.78 36.81162///94.8 0:0026486185604225.75 36.8115619:5523:50加入脱硫添加剂91.9 9月18日1:0022678733192575.93 36.81133///94.7 2:0020276322982925.99 36.811342:103:42加入脱硫添加剂94.8 3:0020478243602465.99 36.81134///93.4 4:0021183263922685.99 36.81139///93.8 5:0021287774102955.98 36.81145///92.9 6:0021686333863425.98 36.81145///94.1 7:0021585313882575.98 36.81149///94.1 8:0021080873352495.98 31.31154///94.7 9:0021978933272805.90 33.511496:208:56加入脱硫添加剂94.9 10:0021677572551275.92 33.91147///95.9 11:0023777593072255.89 36.81147///94.8 12:0019372742561875.97 36.81148///95.3 13:0020373082671905.95 30.61153///94.8 14:0025181573522515.86 36.8115413:5514:28加入脱硫添加剂96.2 15:0022577852752115.87 36.81152///94.7 16:0023382743412655.86 36.81153///94.6 17:0023378583262715.84 36.81157///94.9 18:0023583113962865.81 36.81161///93.6 19:0022989914513965.82 36.8115818:4019:08加入脱硫添加剂93.4 20:0023180432722535.89 36.81158///95.5 21:0023287203923005.83 36.8116121:0021:40加入脱硫添加剂94.1 22:0022685403292835.82 36.81156///95.3 23:0019989693432795.91 36.81160///94.7 0:0019893764132825.91 36.81161///93.8 9月19日1:0019895784483205.91 36.811601:201:47加入脱硫添加剂93.7 2:00174105005994285.90 36.81157///91.9 3:0016496234303085.95 3611573:103:39加入脱硫添加剂94 4:0016596163752655.88 36.81152///94.5 5:0016897203572685.89 36.81154///95 6:0017793523342575.86 36.811546:406:43加入脱硫添加剂95.5 7:0018193704033075.82 36.81152///94 8:0017793183372555.82 36.81153///95 9:0022594204373455.77 36.811658:309:45加入脱硫添加剂93.8 10:0021396983783215.79 36.81167///94.7 11:0021599403842895.81 36.8116711:2212:17加入脱硫添加剂95.4 12:0021597783682825.77 36.81172///95.2 13:0021899213752785.77 36.81169///95.3 14:0020695994153035.76 36.81168///94.5 15:0020696524513455.77 36.81171///93.9 16:0018390833022575.87 36.8116716:00/加入脱硫添加剂95.3 17:0020091653722695.89 36.81171/17:20/94.6 18:0020287982571895.88 36.81170///96 19:0020285082581755.92 36.81168///95.6 20:0021892823992825.89 36.81169//加入脱硫添加剂94.8 21:0021588652972055.90 36.8117121:15//95.3 22:0020893262842095.85 36.81170///95.2 23:0021088083332065.82 36.81171///94.5 0:0020689193372355.84 36.81174///95.1 9月20日1:0020693023492755.85 36.811701:40/加入脱硫添加剂95.2 2:0019291182372245.87 36.81171///96.9 3:0019485932561215.90 36.81173///95.9 4:0021386783282605.85 36.81169///95.8 5:0021084053252435.83 36.811705:105:53加入脱硫添加剂95 6:0021187903242535.80 36.81170///95.3 7:0021283592912345.79 36.81171///94.9 8:0021186082922715.76 361173///94.9 9:0021284463372525.74 36.41174///94.6 10:0021086503302845.72 36.81174///94.9 11:0021186653002605.71 36.81176///95.3 12:0020687653923155.63 36.3118011:3512:28加入脱硫添加剂94.2 13:0020886953822825.61 361181///94.5 14:0021292503262755.62 36.41178///95.3 15:0021187292242065.67 36.71181///96.9 16:0021787932962625.62 31.51181///96.1 17:0020579352482085.63 28.31181///96.3 18:0021084212061745.59 24.51184///96.8 19:0020877702351995.58 21.31181///96.4 20:0022580582422525.49 20.9117520:1820:20加入脱硫添加剂95.2 21:0021292403883335.53 36.81173///93.9 22:0021088423983825.38 36.81171///94.1 23:0019094864012945.45 36.81170///95.1 0:0019491744934585.40 36.811680:301:10加入脱硫添加剂93 9月21日1:0018498234594035.60 32.31146///93.8 2:0017290082792775.62 26.51136///95.6 3:0017793133653415.49 25.811353:003:33加入脱硫添加剂95.3 4:0016294924573455.40 26.41137///93.4 5:0016396704413425.40 36.81134///94.8 6:0016496423642815.54 36.21146///95.6 7:0018394133682725.52 24.41148///95.4 8:0016698114262375.50 23.31150///94.2 9:00///////////8:04故障停运10:00/////////// 11:00/////////// 12:00/////////// 13:00/////////// 14:00/////////// 15:00/////////// 16:00/////////// 17:00/////////// 18:00/////////// 19:00/////////// 20:00/////////// 21:00/////////// 22:00/////////// 23:00/////////// 0:00/////////// 9月22日1:00/////////// 2:00/////////// 3:00/////////// 4:00/////////// 5:00/////////// 6:00/////////// 7:00/////////// 8:00/////////// 9:00/////////// 10:00/////////// 11:00/////////// 12:00/////////// 13:00/////////// 14:00/////////// 15:00/////////// 16:00///////////17:53启动运行17:0021712303262376.14 18.6103517:2017:35加入脱硫添加剂97.9 18:002102453562206.13 21.31042///93.6 19:0020762433762366.04 21.61045///92.3 20:0023270493782345.85 21.61043///93.5 21:0023571954452755.80 36.81044///93.4 22:0021067193342175.85 36.81049///93.4 23:0021570103011795.88 35.51057///94.6 0:0021870703111845.90 32.51062///94.6 9月23日1:0021264112982465.89 25.81069///93.9 2:0021167372951945.88 241073///94.6 3:0021069123161795.84 25.61081///95.6 4:0021269973762335.82 25.91081///92.2 5:0020579995244075.68 28.91084///91.5 6:0020079724312835.70 30.710805:005:04加入脱硫添加剂92.8 7:0019979833832665.78 30.81081///93.9 8:0020078804162815.72 21.91079///92.1 9:0020581604943795.68 25.810819:10/加入脱硫添加剂93.4 10:0020482554303355.56 28.21078/10:00/92.3 11:0020580314403395.46 27.31085///92.5 12:0020385724723755.53 32.91088///93.2 13:0018992014853705.67 36.81086///93.8 14:0018689694453105.67 36.81086///93.7 15:0018791004153455.66 32108914:4015:50加入脱硫添加剂93.6 16:0019592184583785.63 32.51089///93.2 17:0020393654972605.70 36.81096///92.7 18:0020594215403775.68 36.81097///93.1 19:0020191704313255.74 36.81097///92.7 20:0020293405063775.70 31.31095///92.7 21:0020684423602555.74 29.3109120:1020:15加入脱硫添加剂93.5 22:0020580564112965.70 28.91089///95.2 23:0020377873492585.77 28.31089///95.6 0:00209坏2842165.79 28.61087///坏 9月24日1:0020672502791875.78 26.21094///96.3 2:0020463302622265.75 26.61090///95.7 3:0020469952402105.76 26.61090///98.7 4:0020743002721965.77 26.31092///94.8 5:0020867282642005.78 26.21099///96 6:0020667572731875.74 24.21100///95.8 7:0020847093372195.68 26.71104///93.7 8:0021067802591425.76 24.51111///  9:0020864112411005.60 24.31118///96.1 10:0021268123082545.55 28.61121///95.2 11:0021866063512805.52 30.8111911:20/加入脱硫添加剂94.1 12:0021664592701705.63 28.61119///94.9 13:0021765172911675.75 26.61118///94.7 14:0021669703342305.65 28.71117   94.1 15:0021767562651955.73 24.61117   95.5 16:0021769823122345.72 281118   94.6 17:0021569033012505.74 28.51123   94.2 18:0021662232461885.77 24.21117   95.3 19:0021861122642045.73 241120   95.1 20:0023462782311635.79 271124   95.7 21:0023762832321495.76 26.41125   94.6 22:0023960172861795.74 25.11116   94 23:0021560602271755.77 23.61115   95.7 0:0024860832222255.68 32.81109   95.6 9月25日1:0025865082442015.80 30.61116   95.7 2:0021361281961325.81 21.41120   95.1 3:0021762781891655.75 23.81114   96.1 4:0021562501931225.68 20.31119   95.4 5:0021752712311905.78 28.21120   94.9 6:0021856201701155.61 23.21128   96.9 7:0021860972461715.62 23.11124   93.7 8:0021860902801925.61 26.81124   94.4 下表统计了9月19日至25日的#2脱硫运行及添加剂的使用情况:时 间机组日平均负荷(MW)原烟气平均SO2浓度(mg/Nm3)烟囱平均SO2浓度(mg/Nm3)脱硫添加剂用量(kg)9月19日197.89410275/9月20日207.98699263/9月21日0:00-8:00(8:00以后停运)171.39521312/9月23日202.38260303.5/9月24日216.56388197/9月25日0:00-8:00221.76030161/从上表数据可以看出,在使用了脱硫添加剂的情况下均能实现SO2达标排放。9月19日-23日未经过混配煤的入炉煤硫份很高,脱硫添加剂的用量相当大,9月24日以后经过配煤,脱硫入口SO2浓度降至7000 mg/Nm3以下时,添加剂的用量就很少。由此,我们认为在目前情况下,必须采取适当的混配煤措施,控制入炉煤硫份在3.0%(即脱硫入口SO2浓度7000 mg/Nm3)以下,不仅机组负荷可以往高限带,脱硫添加剂的用量也比较少,而且都能实现SO2达标排放。

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