煤的成分 的英文怎麼說
中文拼音 [méidechéngfēn]
煤的成分
英文
coal composition-
The frozen coal destruction is the tension stress destroys, and establish the frozen coal cutting model in this foundation, obtains the cutting force, feeding force, tooth spacing according to the smallest energy principle. bring forward a rotary drilling mothod to unload the frozen coal, the broken ability is strong, without frozen depth limits, then obtains this machine working parameters, has combined this method with a grab and determined the plane of vehicle - carried rotary drilling movable coal - unloader
凍煤破壞是拉應力破壞,在此基礎上建立了凍煤的切削模型,根據最小能量原理得到截割力,進給力和截齒間距的計算公式,分析得到截割力與切削厚度成正比,隨著前角的增大而減小;截齒最優截距與截齒尺寸有關且與切屑厚度成正比;進給力隨著截齒前角增大而增大的規律。The noncarbon constituents of the coal would be separated.
煤的非碳成分將分離出來。According to sedimentary characteristics of the carboniferous taiyuan formation in feicheng coal field, including lithology, size distribution, sedimenta ry structure, geochemistry and paleontology etc., the carboniferous paleoenvironme nt of this area is divided into carbonate open platform and tidal flat environme nt. it is recognized that the taiyuan formation is formed in the epicontinental c oast which is dominated by the tidal. the peat flat is the important paleoenviron ment for coal accumulation. the tidal channel destroys the coal bed. the pulsative vibration of the crust is the major factor which controls the evolution of the sedimentary environment and the coal accumulation
根據肥城煤田石炭系太原組的巖性、粒度分佈、沉積構造、地球化學及古生物等沉積特徵,將該區晚石炭世古地理劃分為碳酸鹽開闊臺地和潮坪環境,認為太原組形成於潮汐作用為主的陸表海海岸,泥炭坪是成煤的重要古地理環境,潮渠對煤層有一定的破壞作用,地殼的脈動性振蕩作用是控制沉積環境演化和聚煤作用的主要因素。Abstract : according to sedimentary characteristics of the carboniferous taiyuan formation in feicheng coal field, including lithology, size distribution, sedimenta ry structure, geochemistry and paleontology etc., the carboniferous paleoenvironme nt of this area is divided into carbonate open platform and tidal flat environme nt. it is recognized that the taiyuan formation is formed in the epicontinental c oast which is dominated by the tidal. the peat flat is the important paleoenviron ment for coal accumulation. the tidal channel destroys the coal bed. the pulsative vibration of the crust is the major factor which controls the evolution of the sedimentary environment and the coal accumulation
文摘:根據肥城煤田石炭系太原組的巖性、粒度分佈、沉積構造、地球化學及古生物等沉積特徵,將該區晚石炭世古地理劃分為碳酸鹽開闊臺地和潮坪環境,認為太原組形成於潮汐作用為主的陸表海海岸,泥炭坪是成煤的重要古地理環境,潮渠對煤層有一定的破壞作用,地殼的脈動性振蕩作用是控制沉積環境演化和聚煤作用的主要因素。Based on the coal burning mechanism in the precalcinator, by analysing all kinds of effect factors and according to the tga result of the anthracite, sinoma international ncdri developed the on - line spout pipe calciner for 5000 t / d production line of china resource cement ( guigang ) ltd., which composed an excellent - performance precalcining system combined with high - efficiency low - resistance and blockingproof cyclone preheater
基於分解爐煤粉燃燒機理,並通過分析影響爐內煤粉燃燒的各種因素及依據所用無煙煤的熱失重分析結果,中材國際南京水泥設計研究院開發設計出了用於華潤貴港5000t / d工程的噴旋管道式在線分解爐,並與高效、低阻、防堵的旋風預熱系統組成了性能優異的預分解系統。The technical measures for deep reducing coal moisture were urgent needed due to china devoting major effort to implement the new and high technologies used for coal liquefaction and preparation high purity coal. through the analyses of current situation of technical level for coal drying and dewatering, the paper suggests to take overheat steam produced from power plant as a heat source, use the disk dryer to deeply reduce coal moisture with simple working process and low production cost
本文針對我國人力實施煤炭液化和超純煤制備等高新技術,迫切需要將煤中水分深度脫除的技術手段,通過對我國煤炭乾燥脫水技術現狀與水平的分析,提出以電廠過熱蒸汽為熱源,利用盤式乾燥機,以簡捷的乾燥工藝、低的乾燥成本,深度脫除煤中所含水分的技術方案。Being lightweight aggregate, the chemical mineral constituents and physical mechanics properties of lytag are analyzed. meanwhile properties of haydite concrete using lytag as coarse aggregate are also studied. the influences on lightweight concrete qualities by introducing wollastonite and chemical admixtures are researched which proves the important roles of wollastonite and admixtures in construction of concrete platforms
分析了作為輕骨料的粉煤灰陶粒的化學、礦物成分和物理力學性能以及用它作為粗骨料配製出的輕質混凝土的各項特性;研究了摻入硅灰和減水劑等外加劑對混凝土的強度、耐久性和新拌混凝土可工作性的影響;說明了硅灰和化學外加劑在海洋平臺混凝土施工中不可或缺的作用。Abstract : we use ordinary industrial boiler to crement the mixed fuel that made of digested sludge s cake and coal. this paper offers datas of compostion about the mixed fuel and situation of actual experiments in motion, obtions the best mixed - proportion of sludge and coal, estimates environmental benefits and economic results produced by this methods
文摘:利用普通工業鍋爐將消化污泥泥餅與煤製成混合燃料進行焚燒處理,提供了混合燃料組份分析及實際運行試驗情況,得出了切實合理可行的泥煤最佳配比,並就產生的社會經濟效益和環境效益進行了評估。Aiming at such problems in combustion system of homemade middle and miniature boiler, as a complex system with the character of dead zone, time variation, serious non - linearity, large time delay, coupling and a lot of disturbance, this paper presents a new set of optimal control resources. by using well - matched control method on system, stable automatic running is realized. having the serious divulgence coals difference a lot from each other in character, instability of chemistry, value of lowest emission of heat, home - made boiler controller is not at all ideal. instead of traditional model that controls the ratio based on proportional control or with the correct signal of the amount of oxygen, this paper, combined with intellect control theory - - fuzzy control and self - optimizing concept, propounded a kind of fuzzy self - optimizing controller to be used in air supplying system of the boiler, and expatiates on the idea of dividing the control process into two parts, dynamic and static to realize, thus meets the demand of homemade boiler economic running
本設計針對國產中、小型電站鍋爐燃燒系統參數時變、嚴重非線性、干擾因素復雜、耦合嚴重、模型不易確定的特點,提出多變量協調控制方案,解決了系統可控性差,難以實現穩定自動運行的問題;在此基礎上,改變以往以煙氣含氧量控制送風的傳統模式,針對國產電站鍋爐設備主體及一、二次送風迴路泄露嚴重,煤種混雜、成分不穩定、燃燒發熱值低、燃燒效率不高等問題,應用智能控制理論中的模糊控制技術,結合自尋最優控制的思想,設計了一種模糊自尋優控制器,應用在電站鍋爐送風控制系統上,並闡述了動靜態兩種實現途徑,通過在線優化風煤配比,實現最佳經濟燃燒,切實保障了鍋爐的經濟運行。There is a chemical reserve zone in the stack. in this zone the fe is present as feo, and the gas component is close to the balance composition of fe0. 947o / fe. so there is a part of longitudinal section, in which : l ) gas keeps its component, as ascending. 2 ) the composition of the gas is close to the equilibrium composition of the fe0 947o + co - " 0. 947fe + co2 under the temperature of the thermal reserve zone of about 1200 + 100k
根據冶煉理論,高爐在爐身一定高度上有一個「化學貯備區」 ,在該區,含鐵物料實際上都是浮氏體,並且煤氣成分接近fe _ ( 0 . 947 ) o fe平衡時的成分,這樣,高爐內存在高爐熱控制模型開發一個縱向區域,在該區內:二)煤氣上升時,成分不變。The equilibrium working temperature of the gasifier and the composition of the outlet syngas ( short for synthesis gas ) at this temperature were calculated by solving the chemical equilibrium and the energy equilibrium equations. the analysis was used to study the effect of gasifying agent mixture ratio on the outlet syngas composition, the cold gas efficiency, the thermal efficiency and the exergy efficiency. the optimum o2 / coal ratio was found for a reasonable vapor / coal ratio ( the vapor / coal ratio had little effect on the efficiencies ) for various kinds of coal to maximum the thermal efficiency and the exergy efficiency
通過化學平衡和熱量平衡方法求解氣化爐平衡工作溫度以及該溫度下的出口煤氣成分,研究了氣化爐進口氣化劑配比對出口煤氣成分、冷煤氣效率、熱效率及火用效率的影響,指出熱效率、火用效率最優情況下適應于各煤種的最優氧煤比以及合理的水蒸汽耗量,為多聯產系統的設計優化提供參考。In their place we found intriguing alternations of turquoise - blue, gray and green clays, brown sandstone and fossilized plant matter called lignite
我們發現取而代之的巖層組成十分有趣,其中包括了藍綠色、灰色、綠色的黏土、棕色的沙巖,以及稱做褐煤的植物化石。A new kind of water - based and oil - based tricomponent slurry has been developed using suitable dispersant and emulsifier
摘要選用適當的分散劑和乳化劑制備出了油、水、煤組成的三元混合料漿水基油水煤漿及油基油水煤槳。The coking wastewater is a kind of intractable wastewater from the coking products of coal, whose component of this waste water is complicated and difficult to treat
摘要焦化廢水是煤制焦化產品回收過程中產生的廢水,其成分復雜多變,屬于難處理的工業廢水。By virtue of the experiments carried out on the modified pilot - scale biomass gasification system, the temperature field in the gasifier is made explicit. and also some principles about how the temperature, feedstock and extraction mode exert influences on heat value and production rate of gas are attained. in addition, some tentative tests of tar cracking and thermodynamic characteristics of biomass gas burner have been performed, which are that indispensable to design and operation of biomass gasification demonstration project
接著,通過對生物質中熱值氣化中試試驗系統的多次改造和反復試驗,了解了氣化爐內溫度場分佈,得出了溫度、物料、抽氣方式等因素對生物質熱解氣的成分、熱值和產氣率影響的一些基本規律,並進行了初步的焦油催化裂解試驗和煤氣燃燒器的熱力特性、燃燒特性試驗,為面向工程應用的集中供氣示範項目提供了必要的設計和運行依據。Discussion on how to continuously determine fe3, al3 in coal ash contents
煤灰成分中鐵鋁連續測定的體會Many of concrete products mainly are mixed with breeze, some of them are mixed with fly ash also, which make concrete elements ninth complex and require higher demands for ratio design of concrete mixture
摘要目前的商品混凝土多以摻加礦粉為主,有的還摻加粉煤達,致使混凝土成分復雜,因而對混凝土配合比設計提出了更高的要求。These results very close to engineering fact, then analyzed mostly factors : oxygen - coal mole ratio which affect cws gasification process and coal gas component on outlet, also advanced any measures to increase coal gas effective component ( co + h2 ) on outlet
得到了氣化爐內的溫度場、流場、濃度場以及出口粗煤氣成分,其結果與工程實際相比非常接近;並利用得到的結果分析了影響水煤漿氣化過程和出口煤氣成分的主要因素即氧煤比,提出了提高出口煤氣有效成分( co + h2 )的措施。This flexion of graph can be defined as criterion of coal ignition character under excessive oxygen supply. based on viewpoints of coal ignition, we put forward assumption aiming at ignition character of coal with excessive oxygen. in this thesis, with comparison of average temperature increase among eleven kinds of coal, the following are obtained : homogeneous ignition happens when coal has higher volatile matter and there is a approximative direct - ratio relationship between temperature hoist before flexion and content of volatile matter ; on the other side, heterogeneous ignition occurs for the coal with lower volatile matter content because of collective influence of volatile matter and fixed carbon combustion, and one - to - one relationship between temperature increase before flexion and content of volatile matter does not exit
以煤著火性質研究的觀點為基礎,對煤在過氧條件下的著火性質提出假設,通過11種標準煤樣在過氧條件下燃燒實驗,對比了拐點前後平均溫升與煤樣成分的關系,證實了揮發分含量較高的煤在過氧條件下發生均相著火燃燒,拐點前後量熱系統的溫升分別與揮發分和固定炭的含量成近似正比的關系;而揮發分含量較低的煤在過氧條件下發生非均相著火燃燒,拐點之前量熱系統的溫升由於受到揮發分和固定炭同時燃燒的影響,因而不存在溫升與揮發分含量之間單一的對應關系。( 1 ) in view of the selected coal contents, the paper determines pulverizer styles, and then shows two potential coal powder plans : dual inlet dual outlet pulverizer with plus pressure primary fan and direct air supply, middle speed pulverizer with plus pressure primary fan and direct air supply
( 1 )通過煤質成分析確定出磨煤機的選型,在此基礎上得出兩種制粉系統擬定方案:雙進雙出鋼球磨煤機正壓冷一次風機直吹式制粉系統和中速磨煤機正壓冷一次風機直吹式制粉系統。分享友人