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h10"></div> <div id="tu0yepui" class="technical aboutUs"> 20年用心只做一件事，專(zhuān)注羅茨風(fēng)機(jī)生產(chǎn)制造，我們更專(zhuān)業(yè) </div> </div> <div id="tu0yepui" class="fr pageRight"> <div id="tu0yepui" class="local"> <h1 class="fl">羅茨鼓風(fēng)機(jī)是石灰窯噴煤系統(tǒng)重要?dú)庠?/h1> <div id="tu0yepui" class="fr"> <a class="home-icon" href="http://">羅茨風(fēng)機(jī)首頁(yè)</a> » <a href="http:///archives/category/xwzx">新聞中心</a> » <a href="http:///archives/category/xwzx/jgzx">錦工資訊</a> » </div> </div> <div id="tu0yepui" class="cl h20"></div> <div id="tu0yepui" class="cl h20"></div> <div class="tu0yepui" id="tedian"> <h2>羅茨鼓風(fēng)機(jī)是石灰窯噴煤系統(tǒng)重要?dú)庠?/h2> <div id="tu0yepui" class="cl h20"></div> <iframe src="http://player.bilibili.com/player.html?aid=294872918&bvid=BV1fF411z7LX&cid=459039934&page=1&as_wide=1&high_quality=1&danmaku=0" width="80%" height="500" frameborder="0" scrolling="no" sandbox="allow-top-navigation allow-same-origin allow-forms allow-scripts" allowfullscreen="allowfullscreen"></iframe> <p> </p> <p><a href="http:///wp-content/uploads/2019/01/hdp4-1.jpg"><img fetchpriority="high" decoding="async" class="aligncenter wp-image-5064" src="http:///wp-content/uploads/2019/01/hdp4-1.jpg" alt="" width="800" height="236" srcset="http:///wp-content/uploads/2019/01/hdp4-1.jpg 1542w, http:///wp-content/uploads/2019/01/hdp4-1-300x88.jpg 300w, http:///wp-content/uploads/2019/01/hdp4-1-768x226.jpg 768w, http:///wp-content/uploads/2019/01/hdp4-1-1024x301.jpg 1024w" sizes="(max-width: 800px) 100vw, 800px" /></a></p> <p>聯(lián)峰鋼鐵公司是錦工風(fēng)機(jī)老客戶(hù)，該公司噴煤系統(tǒng)的回轉(zhuǎn)窖燒嘴設(shè)計(jì)為煤粉和轉(zhuǎn)爐煤氣五通道煤、氣混燒燃燒器，煤粉用量4?5t/h，轉(zhuǎn)爐煤氣用量25000—27000m3/h。因回轉(zhuǎn)窖煤粉使用量少，且高爐噴煤車(chē)間制粉能力富裕，決定不再新建設(shè)制粉系統(tǒng)，由高爐噴煤車(chē)間將煤粉輸送至噴吹站煤粉倉(cāng)內(nèi)；煤粉倉(cāng)內(nèi)煤粉經(jīng)粉體喂料機(jī)、轉(zhuǎn)子秤、螺旋泵供給，由<a href="http://"><strong>羅茨鼓風(fēng)機(jī)</strong></a>送入燃燒器內(nèi)。噴吹站主要由收粉器、煤粉倉(cāng)、倉(cāng)頂布袋、粉體喂料機(jī)、轉(zhuǎn)子秤、螺旋輸送機(jī)和羅茨鼓風(fēng)機(jī)等設(shè)備組成，煤粉倉(cāng)設(shè)計(jì)時(shí)預(yù)留600t/d石灰窖噴煤系統(tǒng)接口，3#1080m3高爐噴煤車(chē)間磨機(jī)為EM110立式球磨機(jī)，產(chǎn)量約為60t/h，除高爐煤粉需求外，富裕產(chǎn)量約20t/h。因此回轉(zhuǎn)窖的煤粉供應(yīng)可不再新建設(shè)制粉系統(tǒng)，利用高爐噴煤車(chē)間的噴吹罐向回轉(zhuǎn)窖噴吹站煤粉倉(cāng)內(nèi)輸送煤粉，遠(yuǎn)距離輸送管道采用擴(kuò)徑技術(shù)來(lái)減少壓力損失，控制流速，實(shí)現(xiàn)低壓輸送；并設(shè)置一根吹掃管與輸煤管路同時(shí)抵達(dá)噴吹站，在沿途設(shè)置吹掃點(diǎn)，直至噴吹站煤粉倉(cāng)。</p> <p><a href="http:///wp-content/uploads/2019/01/圖片1-2.png"><img decoding="async" class="aligncenter wp-image-5080 size-full" title="噴煤系統(tǒng)流程圖" src="http:///wp-content/uploads/2019/01/圖片1-2.png" alt="噴煤系統(tǒng)流程圖" width="430" height="510" srcset="http:///wp-content/uploads/2019/01/圖片1-2.png 430w, http:///wp-content/uploads/2019/01/圖片1-2-253x300.png 253w, http:///wp-content/uploads/2019/01/圖片1-2-270x320.png 270w" sizes="(max-width: 430px) 100vw, 430px" /></a></p> <p>煤粉倉(cāng)的容積設(shè)計(jì)為90m3，材質(zhì)為碳鋼（Q235B），煤粉倉(cāng)下端共有三個(gè)支腿，設(shè)稱(chēng)重傳感器計(jì)量，為保證煤粉輸送暢通，錐體角度大于70°。每個(gè)錐體都設(shè)有沸騰裝置，使用N2沸騰，一則解決安全防爆問(wèn)題，另一方面，通過(guò)沸騰解決煤粉倉(cāng)掛灰問(wèn)題。<br /> 考慮煤粉輸送以及煤粉儲(chǔ)放的安全要求，煤粉倉(cāng)設(shè)有倉(cāng)頂布袋除塵器，保持倉(cāng)內(nèi)負(fù)壓操作。若預(yù)算充足，羅茨鼓風(fēng)機(jī)可采用變頻電機(jī)，煤粉停止輸送時(shí)，電機(jī)低頻運(yùn)行，達(dá)到節(jié)能效果。</p> <p><a href="http:///wp-content/uploads/2019/01/1-1.jpg"><img decoding="async" class="aligncenter wp-image-5063" src="http:///wp-content/uploads/2019/01/1-1.jpg" alt="" width="800" height="236" srcset="http:///wp-content/uploads/2019/01/1-1.jpg 1542w, http:///wp-content/uploads/2019/01/1-1-300x88.jpg 300w, http:///wp-content/uploads/2019/01/1-1-768x226.jpg 768w, http:///wp-content/uploads/2019/01/1-1-1024x301.jpg 1024w" sizes="(max-width: 800px) 100vw, 800px" /></a></p> <p>喂料系統(tǒng)的可靠、連續(xù)、準(zhǔn)確、穩(wěn)定運(yùn)行是穩(wěn)定窖的熱工制度、降低煤耗、提高產(chǎn)品質(zhì)量和保證設(shè)備安全運(yùn)轉(zhuǎn)的關(guān)鍵因素。煤粉經(jīng)稱(chēng)重倉(cāng)穩(wěn)流后再由FR喂料機(jī)均勻、穩(wěn)定地喂入RWF轉(zhuǎn)子秤。進(jìn)入RWF轉(zhuǎn)子秤的煤粉由轉(zhuǎn)子從進(jìn)料口帶至出料口并喂入下級(jí)設(shè)備。特殊設(shè)計(jì)的結(jié)構(gòu)使得稱(chēng)重傳感器能精確地測(cè)出RWF圓盤(pán)體中粉體的重量，并由SPU信號(hào)處理單元將此弱信號(hào)進(jìn)行采集、放大、轉(zhuǎn)換，然后傳輸?shù)絇LC的模擬輸入接口。系統(tǒng)通過(guò)磁電式測(cè)速傳感器檢測(cè)轉(zhuǎn)子秤的轉(zhuǎn)速，并將此信號(hào)送入PLC的高速計(jì)數(shù)接口。采集到的物料重量與電機(jī)速度信號(hào)經(jīng)控制系統(tǒng)處理運(yùn)算得到粉體的實(shí)際流量，通過(guò)調(diào)節(jié)喂料機(jī)和轉(zhuǎn)子秤的轉(zhuǎn)速，實(shí)現(xiàn)粉體定量給料。對(duì)FR喂料機(jī)的調(diào)節(jié)引入預(yù)置加前饋的控制理念，使得系統(tǒng)運(yùn)行穩(wěn)定，抗干擾能力強(qiáng)。</p> <p>羅茨鼓風(fēng)機(jī)的選型主要取決于已知的空氣需求量和系統(tǒng)管道操作壓力，以及空氣損失和所需的儲(chǔ)備系數(shù)及安全系數(shù)。煤粉輸送氣流速度一般由經(jīng)驗(yàn)確定，輸送速度為25?30m/s時(shí)，才能保障煤粉與輸送空氣風(fēng)量在輸送管中處于全紊流狀態(tài)，否則輸送管內(nèi)會(huì)出現(xiàn)噎堵現(xiàn)象，輸送受阻。粉料輸送量和空氣消耗量的比可用“料氣比”來(lái)表示，料氣比的數(shù)值主要取決于輸送物料的特性、操作參數(shù)和氣固噴射器的幾何參數(shù)；這是個(gè)經(jīng)驗(yàn)數(shù)據(jù)，對(duì)于螺旋泵輸送煤粉，料氣比的設(shè)計(jì)值一般取<3kg/m3。經(jīng)過(guò)計(jì)算，羅茨風(fēng)機(jī)選型為：風(fēng)量：40m3/min;壓損：58.8kPa，型號(hào)：JGR200A，生產(chǎn)廠(chǎng)家：山東錦工有限公司。</p> <p><a href="http:///wp-content/uploads/2017/04/錦工優(yōu)勢(shì).png"><img loading="lazy" decoding="async" class="aligncenter size-full wp-image-3605" src="http:///wp-content/uploads/2017/04/錦工優(yōu)勢(shì).png" alt="" width="800" height="1216" srcset="http:///wp-content/uploads/2017/04/錦工優(yōu)勢(shì).png 800w, http:///wp-content/uploads/2017/04/錦工優(yōu)勢(shì)-197x300.png 197w, http:///wp-content/uploads/2017/04/錦工優(yōu)勢(shì)-768x1167.png 768w, http:///wp-content/uploads/2017/04/錦工優(yōu)勢(shì)-674x1024.png 674w" sizes="(max-width: 800px) 100vw, 800px" /></a></p> <p>燃燒器具有以下性能特點(diǎn)：<br /> (1)噴頭選用Cr25Ni20鑄造后精加工而成，耐高溫、抗氧化，使用壽命長(zhǎng)；<br /> (2)火焰形狀規(guī)則，完整；火焰無(wú)波動(dòng)，穩(wěn)定。不會(huì)出現(xiàn)火焰吹掃窖襯的現(xiàn)象，可延長(zhǎng)窖襯的使用壽命;<br /> (3)煤粉、煤氣和一次風(fēng)及二次風(fēng)混合良好，燃燒充分，故可提高窖的熱力強(qiáng)度，同時(shí)降低一次風(fēng)的比例，從而提高窖的產(chǎn)量并降低熱耗；<br /> (4)攏焰罩形成碗狀效應(yīng)和火焰_開(kāi)始沒(méi)有強(qiáng)渦流避免了溫度峰值，使火焰溫度分布均勻合理，可有效地保護(hù)窖口筒體和護(hù)板；<br /> (5)降低CO和NO,的含量：由于燃料和風(fēng)混合更為充分，燃燒更為快速完全，降低了窖尾廢氣中CO和NO.的含量，有利于電收塵的安全運(yùn)行和環(huán)保。</p> <p>根據(jù)目前生產(chǎn)情況，石灰窖產(chǎn)量約為960t/d。只采用轉(zhuǎn)爐煤氣時(shí)石灰窖的能源消耗量為轉(zhuǎn)爐煤氣800m3/t.灰(轉(zhuǎn)爐煤氣的熱值為1600kcal/m3);改為噴煤后，用煤粉代替_半的焦?fàn)t煤氣(煤粉的熱值為7100kcal/kg)，煤粉的消耗量約為90kg/t.灰。能源的價(jià)格成本為：轉(zhuǎn)爐煤氣0.2元/m3,煤粉0.8元/kg;噴煤后噸灰產(chǎn)量預(yù)計(jì)可節(jié)約成本為8元/t.灰，每年可節(jié)省近300萬(wàn)元。</p> <p><a href="http:///wp-content/uploads/2017/04/售后服務(wù).png"><img loading="lazy" decoding="async" class="aligncenter size-full wp-image-3606" src="http:///wp-content/uploads/2017/04/售后服務(wù).png" alt="" width="800" height="580" srcset="http:///wp-content/uploads/2017/04/售后服務(wù).png 800w, http:///wp-content/uploads/2017/04/售后服務(wù)-300x218.png 300w, http:///wp-content/uploads/2017/04/售后服務(wù)-768x557.png 768w, http:///wp-content/uploads/2017/04/售后服務(wù)-441x320.png 441w" sizes="(max-width: 800px) 100vw, 800px" /></a></p> <p>投產(chǎn)以后，整套系統(tǒng)運(yùn)行穩(wěn)定，石灰窖產(chǎn)量約為960t/d，管道未出現(xiàn)堵塞現(xiàn)象。喂料系統(tǒng)能夠可靠、連續(xù)、準(zhǔn)確、穩(wěn)定地輸送煤粉至燃燒器內(nèi)。經(jīng)分析能源消耗量：轉(zhuǎn)爐煤氣約為15000m3/h，煤粉約為4.5t/h，石灰窖產(chǎn)量約為960t/d，實(shí)際能源消耗沒(méi)有達(dá)到預(yù)期目標(biāo)，并且窖頭有碳顆粒，煤粉燃燒不充分.</p> <p>經(jīng)過(guò)反復(fù)調(diào)試、研究，總結(jié)出以下原因：<br /> (1)轉(zhuǎn)爐煤氣含有水分，煤氣與煤粉混合過(guò)程中，形成碳顆粒，致使煤粉難以燃燒；<br /> (2)煤粉指標(biāo)：揮發(fā)分約為10%、細(xì)度(一200目)約為70%。由于回轉(zhuǎn)窖內(nèi)負(fù)壓燃燒，燃料在爐膛內(nèi)存在時(shí)間短，煤粉揮發(fā)性低，難以迅速燃燒，造成煤粉燃燒不充分。</p> <p><a href="http:///wp-content/uploads/2017/04/拆裝圖.png"><img loading="lazy" decoding="async" class="aligncenter size-full wp-image-3603" src="http:///wp-content/uploads/2017/04/拆裝圖.png" alt="" width="800" height="668" srcset="http:///wp-content/uploads/2017/04/拆裝圖.png 800w, http:///wp-content/uploads/2017/04/拆裝圖-300x251.png 300w, http:///wp-content/uploads/2017/04/拆裝圖-768x641.png 768w, http:///wp-content/uploads/2017/04/拆裝圖-383x320.png 383w" sizes="(max-width: 800px) 100vw, 800px" /></a></p> <p>查閱回轉(zhuǎn)窖噴煤資料，煤粉充分燃燒需要保證煤粉揮發(fā)分不低于18%、細(xì)度(一200目)不低于80%，并且灰熔點(diǎn)溫度高于爐膛溫度，否則會(huì)出現(xiàn)煤粉燃燒不充分，能源消耗高，窖內(nèi)出現(xiàn)結(jié)圈現(xiàn)象。</p> <p> 山東錦工有限公司<br> 地址：山東省章丘市經(jīng)濟(jì)開(kāi)發(fā)區(qū)<br> 電話(huà)：0531-83825699<br> 傳真：0531-83211205<br> 24小時(shí)銷(xiāo)售服務(wù)電話(huà)：15066131928<br> </p> <div id="tu0yepui" class="cl h20"></div> <hr /> 上一篇: <a href="http:///archives/5082.html" rel="prev">羅茨鼓風(fēng)機(jī)檢修的注意事項(xiàng)</a><br /> 下一篇: <a href="http:///archives/5086.html" rel="next">資深工程師總結(jié)三葉羅茨鼓風(fēng)機(jī)維護(hù)及檢修建議</a></div> <div id="tu0yepui" class="cl h20"></div> </div> </div> <div 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