【正文】 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。 And for cyclone preheater whirlwind of main equipment cartridge speaking, because it is by multilevel heat transfer units, material is posed by a multistage preheating unit, so just keep uploaded heating gassolid separation of the given the heat transfer efficiency and must plete a due role that tas k. So it in cyclone preheater system, depending on the place of different preheater level, have different gassolid separation efficiency targets, and its itself structure also has difference. So the dusty airflow finally get separated. The gas and dust in different physical characteristics, main show is in a gaseous materials, quality is lesser, easy deformation。 (resistance coefficient increases too big)。 lt。 (5) artificially block clearer tools are ready?；剞D(zhuǎn)窯作為燒成設(shè)備，由于它能夠提供斷面溫度分布比較均勻的溫度場，并能保證物料在高溫下有足夠的停留時間，尚能滿足要求。 二、懸浮預(yù)熱窯的特點(diǎn) 懸浮預(yù)熱窯的特點(diǎn)是在長度較短的回轉(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。只有兼?zhèn)溥@三個功能，并且盡力使之高效化，方可最大限度地提高換熱效率，為全窯系統(tǒng)優(yōu)質(zhì)、高效、低耗和穩(wěn)定生產(chǎn)創(chuàng)造條件。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，由于它是由多級換熱單元所組成，物料系由多級預(yù)熱 單元逐級加熱，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)。 四、影響熱效率及收塵效率的因素 漏風(fēng)的影響 旋 風(fēng)筒作為水泥懸浮預(yù)熱分解工藝過程的重要設(shè)備 ,其漏風(fēng) ,無論是內(nèi)漏風(fēng)還是外漏風(fēng) ,都是有害無益的。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)。旋風(fēng)筒進(jìn)口方式一般有兩種，即10 進(jìn)口氣流外緣與圓柱體相切稱直式；氣流內(nèi)緣與圓柱體相切稱蝸殼式。不大，但阻力系數(shù)有一定程度的增加。 （ 4）檢查窯尾縮口、煙室、下料舌頭有無結(jié)皮現(xiàn)象，如有結(jié)皮應(yīng)及時進(jìn)行清理。 五、正常生產(chǎn)時的檢查與維護(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：夜間觀察殼體國內(nèi)村脫落而起紅）； （ 4）各旋風(fēng)筒的吹堵裝置是否動作靈活（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)測溫、測壓裝置是否穩(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。在內(nèi)筒插入深度與進(jìn)口高度的比值 s／ a=O． 482— 0． 612 范圍內(nèi)，阻力系數(shù)較低且變化不大，分離效 率略有增加，所以保證一定的分離效率要著重強(qiáng)調(diào)降阻的中間級旋風(fēng)筒 s／ a 應(yīng)在 0． 612 左右，且最好不要 0． 482(分離效率降低太多 )，也不要0． 816(阻力系數(shù)增加太大 )；而著重強(qiáng)調(diào)分離效率的最上一級旋風(fēng)筒 s／ a 應(yīng)在 1． 02 左右，因?yàn)楫?dāng) s／ a1． 02 時分離效率降低較多，當(dāng) s／ a1． 02時分離效率增加。但是 ,對于給定的漏風(fēng)率 ,隨著固氣比增大 ,分離效率的差值逐漸縮小。但是下料管處的內(nèi)漏風(fēng)通?？坎僮魅藛T的經(jīng)驗(yàn)判斷 ,不易被發(fā)現(xiàn)。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，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。旋風(fēng)筒本體的組成部分有圓柱體、圓錐體、進(jìn)口管道、出口管道、內(nèi)筒及下料管等。預(yù)分解窯采用旋風(fēng)預(yù)熱器作為預(yù)熱單元裝備。懸浮預(yù)熱技術(shù)的突破，從根本上改變了物料預(yù)熱過程的傳熱狀態(tài)，將窯內(nèi)物料堆積態(tài)的預(yù)熱和分解過程，分別移到懸浮預(yù)熱器和分解爐內(nèi)在懸浮狀態(tài)下進(jìn)行。 Horizontal line without off brick, inside, feeding material should be clear in time too。 d , because when d/D separation efficiency reduce when more. Not quite, but the resistance coefficient increases to a certain extent. 7, a whirlwind tube high aspect ratio Along with the increase of whirlwind canister height, the resistance coefficient and separation efficiency of different reduce respectively, it especially with increase in when a whirlwind tube diameter ratio H/high D The performance more apparent, but when H/D , drag coefficient and separation efficiency as a whirlwind canister height respectively increased decreases and increased slowly. So consider the height and preheater tower under the premise of an investment cost, best can guarantee a whirlwind tube diameter ratio around in high , because too low, and separation efficiency reduce resistance coefficient increases. But due to high separation efficiency and resistance coefficient increases and reduce respectively, and few whirlwind canister height and equipment costs have increased to a certain extent. Five, the normal production inspection and maintenance of mainly include the following aspects: (1) a normal production process of the electric dust removal valve condition。 gt。 lt。 Proper position superior a whirlwind among the next feed tube and tube the connection。 Another is larger, solid material, quality is out of shape not easily. So, when the dusty air role to by centrifugal force whirlwind tube wall enrichment, it was a gas centrifugal and thus dust in mechanics have conditions will air extr