freepeople性欧美熟妇, 色戒完整版无删减158分钟hd, 无码精品国产vα在线观看DVD, 丰满少妇伦精品无码专区在线观看,艾栗栗与纹身男宾馆3p50分钟,国产AV片在线观看,黑人与美女高潮,18岁女RAPPERDISSSUBS,国产手机在机看影片

正文內(nèi)容

外文翻譯(中英文)懸浮預(yù)熱技術(shù)(留存版)

2025-07-25 12:01上一頁面

下一頁面
  

【正文】 ty, high efficiency, low consumption and stable production create conditions. Cyclone preheater functions to dispersing materials in hot airflow, uniform, gassolid in heat and separation. Its performance quality mainly displays in whether has the high thermal efficiency, low, separation of resistance and good sealing performance to reduce internal and external air leakage, etc. Cyclone preheater is by a whirlwind tube and upper and lower two level a whirlwind cylinder posed the connections between pipeline. Part of the whirlwind canister ontology cylinder, the cone, a pipeline, export pipeline, imported material pipe inner cylinder and etc. Connecting pipe upside and superior a whirlwind tube inlet piping, lower and lower a whirlwind tube outlet piping connections。 O. when high separation efficiency and six little change, when d/D O. 6, separating efficiency decreases rapidly. So guarantee of separation efficiency should be emphasized the intermediate level resistance reduction whirlwind in the cylinder tube diameter size, d/d can be in 2/3 or so, and had better not amp。 (8) system safety protective measures for pleteness. Six, stop kiln maintenance preheater and deposition furnace examination (1) check cyclone furnace tube and deposition without off brick or the eyewinker, inner cylinder are in good condition。現(xiàn)在立筒預(yù)熱器已趨于淘汰。氣流和粉塵的不同物理特性,主要表現(xiàn)在一個(gè)是氣態(tài)物質(zhì),質(zhì)量較小,容易變形;另一個(gè)是固態(tài)物質(zhì),質(zhì)量較大,不易變形。 固氣比的影響 固氣比不同 ,下料管處漏風(fēng)導(dǎo)致旋風(fēng)筒分離效率降低幅度也不同隨著固氣比增大 ,下料管處漏風(fēng)導(dǎo)致旋風(fēng)筒分離效率降低幅度也增大。但過高時(shí)由于分離效率和阻力系數(shù)分別增加和降低不多,而旋風(fēng)筒高度及設(shè)備成本卻有一定程度的增加。 旋風(fēng)筒高徑比 隨著旋風(fēng)筒高度的增加,其阻力系 數(shù)和分離效率分別有著不同程度的減小和增加,這一點(diǎn)尤以當(dāng)旋風(fēng)筒高徑比 H/ D2. 282 時(shí)表現(xiàn)更加明顯,但當(dāng) H/D2. 282 時(shí),阻力系數(shù)和分離效率分別隨著旋風(fēng)筒高度的增加而減小和增加緩慢。適當(dāng)延長(zhǎng)翻板閥安裝位置與旋風(fēng)筒卸料口之間距離 ,可以提高旋風(fēng)筒的分離效率。所以它在旋風(fēng)預(yù)熱器系統(tǒng)中,視所在的不同預(yù)熱器級(jí)別,具有不同的氣固分離效率目標(biāo),而其本身結(jié)構(gòu)亦有差異。同時(shí)它尚具有運(yùn)動(dòng)部件少,附屬設(shè)備不多,維修比較簡(jiǎn)單,占地面積較小,投資費(fèi)用較低等優(yōu)點(diǎn)。 (6) system temperature sensor, pressure measuring device is stable and reliable。 But the separation efficiency emphasized at the next higher level shall be s/a whirlwind tube in left and right sides, because when s/a When separation efficiency, reduce more when s/a separation efficiency increase when. 6 and the influence of tube diameter With the expansion of inner cylinder diameters, the resistance coefficient and separation efficiency of different diameter reduced, including D d/a cylinder。 Proper position superior a whirlwind among the next feed tube and tube the connection。 gt。 Horizontal line without off brick, inside, feeding material should be clear in time too。預(yù)分解窯采用旋風(fēng)預(yù)熱器作為預(yù)熱單元裝備。所以,當(dāng)含塵氣流受離心力作用,向旋風(fēng)筒內(nèi)壁濃縮時(shí),它所受到的離心力較氣體大,因此粉塵在力學(xué)上有條件將氣流擠出,而濃縮于筒壁,而氣流則貼附于粉塵層上。但是 ,對(duì)于給定的漏風(fēng)率 ,隨著固氣比增大 ,分離效率的差值逐漸縮小。 五、正常生產(chǎn)時(shí)的檢查與維護(hù)主要包括以下幾方面: ( 1)正常生產(chǎn)過程中排灰閥狀況; ( 2)系統(tǒng) 的密封狀況; ( 3)分解爐、旋風(fēng)筒及連接管道殼體有無異常(如:夜間觀察殼體國(guó)內(nèi)村脫落而起紅); ( 4)各旋風(fēng)筒的吹堵裝置是否動(dòng)作靈活(電磁閥),吹堵氣壓是否達(dá)到標(biāo)準(zhǔn); ( 5)人工清堵工具是否準(zhǔn)備妥當(dāng); ( 6)系統(tǒng)測(cè)溫、測(cè)壓裝置是否穩(wěn)定可靠; ( 7)分解爐燃燒器燃燒有無異常; ( 8)系統(tǒng)安全防護(hù)措施是否完備。不大,但阻力系數(shù)有一定程度的增加。在實(shí)際生產(chǎn)過程中 ,翻板閥卸料無法完全杜絕內(nèi)漏風(fēng)。而不同點(diǎn)則在于,旋風(fēng)收塵器不具備換熱功能,而應(yīng)具備盡可能高的氣固分離功能;而對(duì)旋風(fēng)預(yù)熱器中的主要設(shè)備旋風(fēng)筒來講,由于它是由多級(jí)換熱單元所組成,物料系由多級(jí)預(yù)熱 單元逐級(jí)加熱,因此只要保持其給定的氣固分離效率和一定的換熱作用即完成了應(yīng)有的任務(wù)。 二、懸浮預(yù)熱窯的特點(diǎn) 懸浮預(yù)熱窯的特點(diǎn)是在長(zhǎng)度較短的回轉(zhuǎn)窯后裝設(shè)了懸 浮預(yù)熱器,使原來在窯內(nèi)以堆積態(tài)進(jìn)行的物料預(yù)熱及部分碳酸鹽分解過程,移到懸浮預(yù)熱器內(nèi)以懸浮狀態(tài)進(jìn)行,因此呈懸浮狀態(tài)的生料粉能與熱氣流充分接觸,氣、固相接觸面大,傳熱速度快、效率高,有利于提高窯的生產(chǎn)能力,降低熟料燒成熱耗。 (5) artificially block clearer tools are ready。 (resistance coefficient increases too big)。 Whirlwind tube feeding at a higher level under proper positions of the pipe, air valve installed a locked not only keep the role is separated from the superior a whirlwind canister to expedite raw through the heat pipe, and can maximize prevent lower the 3 heat whirlwind canister out under shortcircuit feed tube flows into superior a whirlwind tube, cause has been separation of secondary float in the sky, reduce powder raw superiors separation efficiency。 2/3, otherwise the resistance coefficient reducing much bigger。 Rising pipe。構(gòu)成旋風(fēng)預(yù)熱器的熱交換單元設(shè)備主要是旋風(fēng)筒及各級(jí)旋風(fēng)筒之間的聯(lián)接管 道(亦稱換熱管道)。當(dāng)含塵氣流運(yùn)動(dòng)時(shí),粉塵給氣流一個(gè)作用力,可 局部改變氣流的運(yùn)動(dòng)狀態(tài);同時(shí)氣流也給粉塵一個(gè)反作用力,這就是氣流對(duì)粉塵的阻力。固氣比愈大 ,下料管處漏風(fēng)導(dǎo)致旋風(fēng)筒卸料口處棚料現(xiàn)象也愈嚴(yán)重。 六、停窯檢修時(shí)預(yù)熱器及分解爐的檢查 ( 1)檢查旋風(fēng)筒及分解爐內(nèi)有無掉磚或異物,內(nèi)筒是否完好;水平管道內(nèi)有無掉磚、結(jié)料,結(jié)料過多應(yīng)及時(shí)清理;上升管道內(nèi)有無掉磚;導(dǎo)流板、撒料板是否完好。所以保證一定的分離效率要著重強(qiáng)調(diào)降阻的中間級(jí)旋風(fēng)筒內(nèi)筒直徑大小, d/ D 可以在 2/ 3 左右,且最好不要 2
點(diǎn)擊復(fù)制文檔內(nèi)容
畢業(yè)設(shè)計(jì)相關(guān)推薦
文庫吧 www.dybbs8.com
備案圖鄂ICP備17016276號(hào)-1