【正文】 when d/D 2/3, drag coefficient reducing slowly. For separation efficiency, it D tube diameter d /。 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。 gt。 2/3, otherwise the resistance coefficient reducing much bigger。 the separation efficiency and reduce Also don39。t amp。 lt。 , or resistance coefficient increases too big。 But the separation efficiency emphasized at the next higher level within the whirlwind tube diameter size, d/reduction should be amp。 lt。 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。 (2) system seal condition。 (3) deposition furnace, a whirlwind tube and connecting pipe shell without exception (such as: the night observing shell domestic village peel off and then red)。 (4) the whirlwind tube blow plugging device might be flexible motion (electromagic valve), blow plugging pneumatic meets the standards。 (5) artificially block clearer tools are ready。 (6) system temperature sensor, pressure measuring device is stable and reliable。 7 (7) deposition furnace burner without exception bustion。 (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。 Horizontal line without off brick, inside, feeding material should be clear in time too。 Rising pipe。 without off brick Guide plate, and materials plate is in good condition. (2) check the electric dust removal valve bearing, when necessary, lubricates the clean and refueling。 Check the electric dust removal valve surface is in good condition, if appear valve face severe worn or serious deformation, should promptly replaced. (3) to examine deposition furnace burner is in good condition, such as the discovery of a badly worn or deformation should be replaced. (4) check mouth, preheater shrinkage and discharge smoke room without crust tongue phenomenon, such as a crust should be timely clearing. (5) system maintenance overhaul after each part of the system should be unblocked, and presence of foreign body, the electric dust removal valve activities is flexible, after the check should shut down all observations hole and into the hole of the door, pletes the system sealing job. 8 懸浮預(yù)熱技術(shù) 一、懸浮預(yù)熱技術(shù)的優(yōu)越性 傳統(tǒng)干法回轉(zhuǎn)窯生產(chǎn)水泥熟料，生料的預(yù)熱、分解和燒成過程均在窯內(nèi) 完成?；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。但作為傳熱、傳質(zhì)設(shè)備則不理想，對需要熱量較大的預(yù)熱、分解過程則甚不適應(yīng)。這主要由于窯內(nèi)物料堆積在窯的底部，氣流從料層表面流過，氣流與物料的接觸面積小，傳熱效率低所致。同時，窯內(nèi)分解帶料粉處于層狀堆積態(tài)，料層內(nèi)部分解出的二氧化碳向氣流擴散的面積小、阻力大、速度慢，并且料層內(nèi)部顆粒被二氧化碳 氣膜包裹，二氧化碳分壓大，分解溫度要求高，這就增大了碳酸鹽分解的困難，降低了分解速度。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)下進行。由