礦用帶式輸送機(jī)的結(jié)構(gòu)設(shè)計(jì)含開(kāi)題及6張CAD圖
礦用帶式輸送機(jī)的結(jié)構(gòu)設(shè)計(jì)含開(kāi)題及6張CAD圖,礦用帶式,輸送,結(jié)構(gòu)設(shè)計(jì),開(kāi)題,cad
XXXXXX
XXX設(shè)計(jì)（XXX）中期檢查表
指導(dǎo)教師： 職稱：
所在系部（單位）： 教研室（研究室）：
題 目
礦用帶式輸送機(jī)的結(jié)構(gòu)設(shè)計(jì)
學(xué)生姓名
專業(yè)班級(jí)
學(xué)號(hào)
一、選題質(zhì)量
選題質(zhì)量：（主要從以下四個(gè)方面填寫(xiě)：1、選題是否符合專業(yè)培養(yǎng)目標(biāo)，能否體現(xiàn)綜合訓(xùn)練要求；2、題目難易程度；3、題目工作量；4、題目與生產(chǎn)、科研、經(jīng)濟(jì)、社會(huì)、文化及實(shí)驗(yàn)室建設(shè)等實(shí)際的結(jié)合程度）
本設(shè)計(jì)為礦用皮帶輸送機(jī)的結(jié)構(gòu)設(shè)計(jì)，所選的題目與書(shū)本學(xué)習(xí)知識(shí)聯(lián)系緊密,比較貼近生產(chǎn)實(shí)際情況，比較具有代表性，具有非常大的發(fā)揮空間和巧活多樣的設(shè)計(jì)思路，對(duì)于本科機(jī)設(shè)專業(yè)的學(xué)生來(lái)說(shuō)，題目難度相對(duì)適中，課題對(duì)學(xué)生的專業(yè)素質(zhì)要求較高，并且該題目由該同學(xué)單獨(dú)完成，經(jīng)由嚴(yán)謹(jǐn)?shù)臄?shù)學(xué)計(jì)算，具有較高的工作量，選題比較符合專業(yè)培養(yǎng)目標(biāo)。而且需要同學(xué)認(rèn)真查閱資料，扎實(shí)學(xué)好專業(yè)知識(shí)，與任課老師，相關(guān)的技術(shù)人員溝通，認(rèn)真完成畢業(yè)論文，選題完全符合專業(yè)培養(yǎng)目標(biāo)， 對(duì)即將畢業(yè)的學(xué)生的再學(xué)習(xí)有較好的指引作用，綜合訓(xùn)練的要求也得到充分的體現(xiàn)。
二、開(kāi)題報(bào)告完成情況
開(kāi)題報(bào)告已經(jīng)完成。
經(jīng)查閱大量相關(guān)皮帶輸送機(jī)資料和文獻(xiàn)，并到網(wǎng)上看有關(guān)礦用皮帶輸送機(jī)的視頻，經(jīng)過(guò)指導(dǎo)老師的審查和指導(dǎo)下，已經(jīng)對(duì)礦用皮帶輸送機(jī)的設(shè)計(jì)方案及具體結(jié)構(gòu)有了初步的認(rèn)識(shí)，現(xiàn)在已經(jīng)進(jìn)入了計(jì)算設(shè)計(jì)過(guò)程，正在進(jìn)行設(shè)計(jì)內(nèi)容、方法和步驟的具體確定工作，我將在以后工作中繼續(xù)努力，認(rèn)真完成本次畢業(yè)設(shè)計(jì)。，
三、階段性成果
1、完成了開(kāi)題報(bào)告；
2、通過(guò)大量文獻(xiàn)資料的閱讀和老師的精心指導(dǎo)，有了清晰的設(shè)計(jì)目標(biāo)，并針對(duì)性的收集了大量的資料和圖冊(cè)，為設(shè)計(jì)的順利完成打下了堅(jiān)實(shí)的基礎(chǔ)；
3、基本完成了皮帶輸送機(jī)的方案選擇和及部件的選型；
4、英文翻譯工作也已經(jīng)基本完成，現(xiàn)在正對(duì)一些結(jié)構(gòu)設(shè)計(jì)進(jìn)行校核。
四、存在主要問(wèn)題
目前存在的主要問(wèn)題：
1、論文初稿的內(nèi)容還不豐富，思考問(wèn)題還不夠全面，對(duì)材料缺少認(rèn)真度量。
2、對(duì)計(jì)算過(guò)程中可能出現(xiàn)的問(wèn)題、原因分析及解決的方案有待進(jìn)一步完善；
3、現(xiàn)階段所進(jìn)行的具體結(jié)構(gòu)設(shè)計(jì)中的具體問(wèn)題還有待解決；
4、由于將來(lái)工作的需要正在學(xué)習(xí)用UG進(jìn)行作圖，進(jìn)度較慢。
五、指導(dǎo)教師對(duì)學(xué)生在畢業(yè)實(shí)習(xí)中，勞動(dòng)、學(xué)習(xí)紀(jì)律及畢業(yè)設(shè)計(jì)（論文）進(jìn)展等方面的評(píng)語(yǔ)
指導(dǎo)教師： （簽名）
年 月 日
XXX設(shè)計(jì)（XXX）開(kāi)題報(bào)告
題目名稱
帶式礦用輸送機(jī)的結(jié)構(gòu)設(shè)計(jì)
學(xué)生姓名
王
專業(yè)班級(jí)
學(xué)號(hào)
一，選題的目的和意義：
帶式礦用輸送機(jī)是煤礦最理想的高效連續(xù)運(yùn)輸設(shè)備，與其他運(yùn)輸設(shè)備（如機(jī)車類）相比，具有輸送距離長(zhǎng)、運(yùn)量大、連續(xù)輸送等優(yōu)點(diǎn)，而且運(yùn)行可靠，易于實(shí)現(xiàn)自動(dòng)化和集中化控制，尤其對(duì)高產(chǎn)高效礦井，帶式輸送機(jī)已成為煤炭開(kāi)采機(jī)電一體化技術(shù)與裝備的關(guān)鍵設(shè)備。
作為整個(gè)生產(chǎn)環(huán)節(jié)中的重要設(shè)備之一，其具有明顯的技術(shù)優(yōu)勢(shì)：首先是它運(yùn)行可靠，其次帶式輸送機(jī)動(dòng)力消耗低，最后還可以根據(jù)工藝流程的要求，帶式輸送機(jī)能非常靈活地從一點(diǎn)或多點(diǎn)受料．也可以向多點(diǎn)或幾個(gè)區(qū)段卸料。當(dāng)同時(shí)在幾個(gè)點(diǎn)向輸送帶上加料（如選煤廠煤倉(cāng)下的輸送機(jī)）或沿帶式輸送機(jī)長(zhǎng)度方向上的任一點(diǎn)通過(guò)均勻給料設(shè)備向輸送帶給料時(shí)，帶式輸送機(jī)就成為一條主要輸送干線。帶式輸送機(jī)可以在貯煤場(chǎng)料堆下面的巷道里取料，需要時(shí)，還能把各堆不同的物料進(jìn)行混合。物料可簡(jiǎn)單地從輸送機(jī)頭部卸出，也可通過(guò)犁式卸料器或移動(dòng)卸料車在輸送帶長(zhǎng)度方向的任一點(diǎn)卸料。
大四的第一個(gè)學(xué)期，我首次接受了有關(guān)煤礦機(jī)械的專業(yè)課程，在了解到帶式輸送機(jī)的重要作用時(shí)，通過(guò)半個(gè)學(xué)期對(duì)帶式輸送機(jī)的認(rèn)真學(xué)習(xí)，對(duì)帶式輸送機(jī)的分類、基本結(jié)構(gòu)和用途有了一定了解。
這次畢業(yè)設(shè)計(jì)給我一個(gè)獨(dú)立解決問(wèn)題的很好機(jī)會(huì)，也為進(jìn)入工廠工作起了過(guò)渡作用。我選擇帶式輸送機(jī)的結(jié)構(gòu)設(shè)計(jì)作為這次重要設(shè)計(jì)的題目，也是出于自己的興趣和鞏固自己學(xué)習(xí)過(guò)的知識(shí)，并能有所提高
二、國(guó)內(nèi)外研究現(xiàn)狀簡(jiǎn)述：
八十年代末以來(lái)，我國(guó)的煤礦用帶式輸送機(jī)也有了很大的發(fā)展，對(duì)其關(guān)鍵研究和新產(chǎn)品開(kāi)發(fā)都取得了可喜的成果。輸送機(jī)產(chǎn)品系列不斷增多，從定型的SDJ、SSJ、STJ、DT等系列發(fā)展到多功能。適應(yīng)特種用途的各種帶式輸送機(jī)系列，如國(guó)家“七五”攻關(guān)項(xiàng)目——大傾角帶式輸送機(jī)成套設(shè)備、“九五”攻關(guān)項(xiàng)目——高產(chǎn)高效工作面順槽可伸縮帶式輸送機(jī)等填補(bǔ)了國(guó)內(nèi)空白，開(kāi)發(fā)了大傾角、長(zhǎng)距離輸送原煤的新型帶式輸送機(jī)系列產(chǎn)品，并對(duì)帶式輸送機(jī)的關(guān)鍵技術(shù)及其主要元部件進(jìn)行了理論研究和產(chǎn)品開(kāi)發(fā)，應(yīng)用動(dòng)態(tài)分析技術(shù)和中間驅(qū)動(dòng)與智能化控制等技術(shù)，研制成功了多種軟件啟動(dòng)和制動(dòng)裝置以及以PLC為核心的可編程電控裝置。但與國(guó)外相比，其機(jī)型一般都偏小，特別是帶速通常均不超過(guò)4m/s,對(duì)高帶速輸送機(jī)及其動(dòng)態(tài)設(shè)計(jì)與計(jì)算機(jī)監(jiān)控等關(guān)鍵技術(shù)問(wèn)題缺乏實(shí)踐經(jīng)驗(yàn)，由于帶速普遍較低，許多設(shè)計(jì)單位仍沿用以往的靜態(tài)設(shè)計(jì)法，用加大輸送帶安全系數(shù)的方法來(lái)提高設(shè)計(jì)的可靠性，其結(jié)果不僅增大了設(shè)計(jì)成本，而且降低了設(shè)備運(yùn)行的可靠性。此外，我國(guó)輸送機(jī)制造企業(yè)追求小而全模式，未能像國(guó)外一樣形成大模式的元部件專業(yè)生產(chǎn)廠或加工中心，致使元部件設(shè)計(jì)與制造水平得不到有效地提高
三、畢業(yè)設(shè)計(jì)（論文）所采用的研究方法和手段：
1．在圖書(shū)館借閱相關(guān)書(shū)籍
2．在學(xué)校數(shù)據(jù)庫(kù)查找相關(guān)資料
3．通過(guò)老師的指導(dǎo)
4．通過(guò)瀏覽因特網(wǎng)上的相關(guān)資料
5．對(duì)相關(guān)資料和數(shù)據(jù)進(jìn)行理論計(jì)算和分析
6. 設(shè)計(jì)參考有關(guān)設(shè)計(jì)樣板，完善設(shè)計(jì)方法，進(jìn)一步完善設(shè)計(jì)結(jié)果
7 通過(guò)與同學(xué)探討得出有關(guān)結(jié)論
8 自己總結(jié)資料得出結(jié)論
四、主要參考文獻(xiàn)與資料獲得情況
[1] 劉建芳 PLC控制變頻器調(diào)速系統(tǒng) 期刊論文 2003年9月
[2] 李炳文，王啟廣 礦山機(jī)械[M] 徐州：中國(guó)礦業(yè)大學(xué)出版社，2007
[3] 黎佩琨 礦井運(yùn)輸及提升[M] 中國(guó)礦業(yè)學(xué)院出版社1983
[4] 毛君 煤礦固定機(jī)械及運(yùn)輸設(shè)備[M] 北京：煤炭工業(yè)出版社 2006
[5] 王國(guó)法 高效綜合機(jī)械化采煤成套裝備技術(shù)[M] 徐州：中國(guó)礦業(yè)大學(xué)出版社 2008
[6] 宋偉剛 通用帶式輸送機(jī)設(shè)計(jì)[M] 北京：煤炭工業(yè)出版社 2004
[7]姜漢軍 礦井輔助運(yùn)輸設(shè)備[M] 徐州：中國(guó)礦業(yè)大學(xué)出版社 2008
[8]閆涵萍，韓延國(guó) 礦用變頻調(diào)速技術(shù)的研究與應(yīng)用 [期刊論文]西]西山科技2002年6月
五、畢業(yè)設(shè)計(jì)（論文）進(jìn)度安排（按周說(shuō)明）：
1. 第1-2周 進(jìn)行實(shí)習(xí)畢業(yè)兩周。收集、整理相關(guān)資料，完成畢業(yè)實(shí)習(xí)報(bào)告（20頁(yè)以上）
2．第3-15周 進(jìn)行畢業(yè)設(shè)計(jì)。完成開(kāi)題報(bào)告、中期檢查報(bào)告、畢業(yè)設(shè)計(jì)圖紙繪制折合0號(hào)圖紙三張，完成畢業(yè)設(shè)計(jì)說(shuō)明書(shū)，打印、裝訂，論文審核、修改。
3．第16周 準(zhǔn)備答辯，進(jìn)行畢業(yè)答辯。修改、完善、整理、上交有關(guān)專業(yè)設(shè)計(jì)資料
六、指導(dǎo)教師審批意見(jiàn)（對(duì)選題的可行性、研究方法、進(jìn)度安排作出評(píng)價(jià)，對(duì)是否開(kāi)題作出決定）
指導(dǎo)教師： （簽名）
年 月 日
Procedia Engineering 26 (2011) 942 946 1877-7058 2011 Published by Elsevier Ltd. doi:10.1016/j.proeng.2011.11.2260 Available online at Procedia Engineering Procedia Engineering 00 (2011) 000000 First International Symposium on Mine Safety Science and Engineering Typical failure analysis and processing of belt conveyor Lihua ZHAO School of Mechanical Engineering, Northeast Dianli University, Jilin City, Jilin Province Changchun Road 169,132012,China ,Yin LIN Abstract The paper analyzes two typical failure forms of roller and conveyor at the belt conveyor, and describes the maintenance methods of prevention and elimination failures to ensure the normal operation of belt conveyor. 2011 Published by Elsevier Ltd. Selection and/or peer-review under responsibility of China Academy of Safety Science and Technology, China University of Mining and Technology(Beijing), McGill University and University of Wollongong. Keywords: belt conveyor; conveyor deviation;roller; typical failure. 1. Introduction Belt conveyor is a commonly used equipment of continuous transport, it has a high efficiency and large conveying capacity, simpler construction,small amount of maintenance. Can be achieved at different distances, different materials transportation. It iss widely used in mining, coal handling system in thermal power plant and other projects. Belt conveyor will often occur some typical problems in the course,this paper Based on research common typical failure of belt conveyor during use,analysis the cause of failure,proposed some effective methods to solve the problem. 2. Typical faults of conveyor belt 2.1. Conveyor belt deviation In the belt conveyor, as the conveyor belt is traction components, transmit power and motion, also is carrying components, support material load. Working more complex, so at work often happen belt deviation. Deviation is the conveyor belt during operation, the center line of belt deviation the center line of conveyor. As the conveyor belt deviation may cause between the belt edge and rack wear, cause belt Lihua ZHAO. Tel: +0086-432-64822626; fax: +0086-432-64666020. Email: 943Lihua ZHAO and Yin LIN / Procedia Engineering 26 (2011) 942 946 2 Lihua ZHAO / Procedia Engineering 00 (2011) 000000 edge premature damage, Ranging impact the life of conveyors, affect the throughput of materials, Weight is caused by withdrawal material, even happen stop occurrence, direct impact on production. As the conveyor belt is more important, the most expensive parts. Its price about 25%50% to the conveyor. So analysis the reasons of belt deviation, reduce and eliminate belt deviation, It is an important part of ensure belt to work, extend equipment life. Cause the belt occurs deviation because of the following factors. 2.1.1. In the device itself a. Rack rigid is poor, large deformation under load, causing the belt deviation. b. The larger error of roller outer cylindrical, caused deviation when the conveyor belt running. c. The supporting roller rotation is not flexible, causes the conveyor belt both sides stress to be uneven, causes the conveyor belt deviation. d. The parallelism error cylindrical axis and roller axis is too big, causes the conveyor belt deviation. e. Conveyor belt itself is questionable quality, thin and thick uneven, caused a shock lead running conveyor belt deviation. f. Conveyor belt manufacturing quality have defects, the length of belt both sides edge is inconsistent, cause running conveyor belt deviation. g. Not parallel with belt connector, connection error is too big, cause belt deviation. 2.1.2. Installation adjustment a. Drive, change roller axis and conveyor centerline vertical error is too big, make conveyor and horizontal line have a bigr inclination, cause belt deviation. b. Roller axis and conveyor centerline vertical error is big, will cause belt deviation also. c. The connection strength between rack and ground is not enough, the rack unstable, causing belt deviation. d. The feeding plate of discharge trough and improperly located, both sides of the conveyor belt uneven force cause belt deviation. 2.1.3. With maintenance a. The cleaning performance of sweeper is poor, make the roller cylindrical diameter local increases. b. Feeding mouth location is wrong, so that the material partial load on the conveyor belt, cause belt deviation. c. Poor maintenance and improper adjustment, resulting in the conveyor belt deviation. d. For the steel cord belt, as the manufacture of steel cord is uneven force, so that a deviation occurs in the operation, or a strong difference of belt, large elongation under load, causing the vibration, the belt will deviation. e. Also, the vibration of running conveyor belt system can cause the deviation. f. In addition, when conveying some viscous material, make the roller, etc. bonding materials, make the cylindrical diameter of roller part increases, causing belt deviation. 2.2. Measures to prevent the belt deviation 2.2.1. Due to equipment in the manufacture of conveyor belt causes the deviation, primarily through improved design, manufacture precision to prevent and reduce the occurrence of conveyor belt deviation. 2.2.2. For installation adjust improper and daily use causes deviation, mainly the following aspects should be considered: 944 Lihua ZHAO and Yin LIN / Procedia Engineering 26 (2011) 942 946 Lihua ZHAO / Procedia Engineering 00 (2011) 000000 3 Conveyor belt in drive roller or on rear rollers deviation, usually by adjusting the position of the roller bearing ways to eliminate, usually by adjusting the position of the roller bearing ways to eliminate. a. The longitudinal centerline of the roller rotation axis and conveyor is not perpendicular, resulting in the conveyor belt one side loose and the other tight, belt move from the tight side to the loose side, Occurs deviation phenomenon. Should be adjusted bearing position of the tighten deviation side. Make horizontal pull of belt equal, eliminate deviation. When tail roller is spiral tensioning, the reasons of tail deviation may be due to the top tight power of tensioning device both sides screw rod are not equal, resulting in caused by imbalance. b. Cylinder axis is not horizontal, at both ends bearing of the height difference is cause another reason of head or tail deviation. At this point, at both ends roller bearing should add and subtract shims way to leveling roller axis ,to eliminate conveyor belt deviation. c. Roller surface adhesion material, equivalent to increasing the roller local rdiameter, will cause the conveyor belt deviation, should strengthen empty segment cleaning of conveyor belt to reduce the adhesive material or dust accumulation on the conveyor belt. In addition, the conveyor belt between the nose and tail parts deviation, called central or local deviation. Such deviation reasons is more complex, it is with the conveyor belt along device exposure to a relationship. Need a detailed analysis for specific issues. Using the following methods can resolve these issues. A. Load or no-load branch roller axis with the conveyor belt running centerline is not perpendicular, causing tape at the roller deviation. Deviation ends should adjustment to the conveyor belt running direction. At this time often need to adjust the adjacent groups of rollers in order to achieve the purpose of eliminating deviation, adjusting deviation angle should not be too big. B. Conveyor belt joint with the tape centerline (trumpet) is not perpendicular, to cause the deviation, Should improved installation connection accuracy to eliminate deviation. C. If material loaded on the conveyor belt is straight; make the material block and weight distribution along bandwidth direction distribution serious inequality, cause deviation, through adjustment blanking tube and skirt plate location method to be eliminated. D. Recently, it was suggested that the method of application film for transfer partial conveyor belt, because of high manufacturing costs and some technical problems not well solved, makes this method very difficult to promote the use. 3. The typical failure of roller 3.1. Operation is not flexible Each belt conveyor have lot number rollers, installation shown in Picture 1, their work status directly affects the conveyor is working. According to the actual work of conveyor, roller in the conveyor system can be classified four kinds according their efect, trough roller, parallel roller, buffer roller and self- aligning roller; according to the loads case can be divided two kinds, no-load roller and bearing roller. Trough roller use bearing branches of materials, play a supporting role and increased throughput role. Parallel roller is a long-shaped roller, for no-load branch of conveyor, to play a supporting role of no- load branch tape; buffer roller is trough roller too. Flexible support trough roller be installed on conveyor load branch, Installed in the material office. Reduce the impact of material for conveyor belt, protect the tape and support bearing. Generally based on the elastic support were divided into rubber ring and spring plate; the role of self-aligning roller is a certain degree of automatic adjustment of conveyor belt deviation, To avoid excessive wear of belt and materials scattered. In the load and no-load branch are equipped with a number of self-aligning roller. The self-aligning principle shown in Fig. 2. 945Lihua ZHAO and Yin LIN / Procedia Engineering 26 (2011) 942 946 4 Lihua ZHAO / Procedia Engineering 00 (2011) 000000 Roller bearing Goods Vtape movement Direction belt belt Spherical roller ax O Fig.1. Installs the schematic drawing Fig. 2. Adjusts the heart principle Manufacture installation quality of roller directly affect the life and running resistance of conveyor belt. roller repair and replacement costs are also an important part of conveyor belt operating expenses. The roller operation quality for conveyor of the running resistance, power consumption, roller and belt life, maintenance workload and cost of transportation has a significant impact. Therefore, analysis method to extend the service life of rollers, also an important contents to ensure stable operation of belt conveyor, practical significance in engineering. Trough roller of belt conveyor systems used on material bearing branch, play supporting role and increased throughput role. Parallel roller is a long-shaped roller, for no- load branch of conveyor, to play a supporting role of no-load branch tape; buffer roller is trough roller too. Flexible support trough roller be installed on conveyor load branch, Installed in the material office. Reduce the impact of material for conveyor belt, protect the tape and support bearing. The role of self- aligning roller is a certain degree of automatic adjustment of conveyor belt deviation, To avoid excessive wear of belt and materials scattered. In the load and no-load branch are equipped with a number of self- aligning roller. If roller appear rotating not flexible or not turning phenomenon. The drag coefficient of roller operation by rolling into a slide, value was ten times to increase. The results will result in increased running resistance of belt conveyors, electric power consumption increases. As the roller rotation is not flexible, the friction between roller and conveyor belt by rolling friction into sliding friction, make the friction increase between the two, shorten the equipment life . Therefore, we must often replace a large number of idlers, conveyor belt, resulting in increased equipment maintenance, operating costs increased. Many factors for affect the flexibility of running rollers and life span, summarized in the following areas: a. Manufacturing quality of roller Roller manufacturing problems mainly in the bearing stiffness is not enough, it is difficult to ensure precision of roller assembly, thereby constraining the flexibility of running roller. b. Sealed lubrication and the use of maintenance Main factors of affect roller rotation not flexible include sealing and bearing lubrication problem. As the work environment of belt is more severe. Generally speaking, the dust are great on used site. The seal form of bearing have a great influence on the running flexibility for rollers. If sealed not well, Dirt is easy into bearing to cause the roller rotation is not flexible, In addition, bearing grease if using the general calcium base grease is easy to change color to dry, can not play a very good lubricant role. 946 Lihua ZHAO and Yin LIN / Procedia Engineering 26 (2011) 942 946 Lihua ZHAO / Procedia Engineering 00 (2011) 000000 5 3.2. Solutions a. In the roller manufacturing processes guarantee the accuracy requirements, For example, pressing bearing bore to achieve three precision, tube at both ends of dimensional tolerances, concentricity and ovality must meet national standards. The products have strict quality inspection to ensure that all products qualified. b.Sealed lubrication, in addition to manufacturing quality assurance, go with good lubricating materials, such as use of lithium-based grease, can improve the lubrication of bearings which extend the life of the roller is necessary. c.Bearing used to ball bearings support, plastic sealing ring labyrinth seal structure, this can ensure roller worked reasonable force, While ensuring dust effect good, resistance small, easy assembly and disassembly, easy to maintain, reduce conveyor operating costs. 4. Conclusion Wide range applications of belt conveyors, and the work environment is generally more difficult, to keep equipment running in good working condition, extend equipment life, improve the quality of operation, reduce operating costs has been the goal of engineering and technical personnel. Analyze and resolve the impact normal operation of the main problems, to ensure the good functioning of device, it is an important work of equipment maintenance. This paper analyzes the proposed method. Helpful improve site maintenance staff levels to solve practical problems, for practical project has important significance. References 1yixiang Lang. Transportation machinery equipment in thermal power plant.MNortheast dianli university book; 1998.08. 2lihua Zhao. Operation and Maintenance of Coal Handling System in Thermal Power Plant, J.Colliery Machine;2011,NO. 02. 3lihua Zhao. Typical failure analysis and processing of belt conveyorJ.Hoisting and Conveying Machinery;2003,NO 10. 4lihua Zhao. The adjustment method of conveyor belt deviation J. Colliery Machine. 2001. No.05.
收藏