《刮板運輸機外文翻譯》由會員分享，可在線閱讀，更多相關(guān)《刮板運輸機外文翻譯（8頁珍藏版）》請在裝配圖網(wǎng)上搜索。

1、 Scraper conveyor Traction with scraper chain, in the bed of the delivery of bulk material conveyor called scraper conveyor. Scraper conveyor trough in the middle of the adjacent level can be limited vertical bending is called flexible scraper conveyor. One body in the face and transport interch

2、ange roadway was 90-degree bending of the face conveyor set called "scraper conveyor corner." Coal face in the current, the scraper conveyor is not only the delivery of coal and materials, but also a shearer's orbit, so it into a modern coal mining process of the major equipment indispensable. Scrap

3、er conveyor functions to maintain continuous operation, production can be carried out normally. Otherwise, the whole coal face production status will be shown, so that disruption of the entire production. Scraper conveyor components by what? Various types of scraper conveyor of the main structure an

4、d composition of the basic components are the same, it is by the head, middle and tail of three machine parts. In addition, for over conveyor equipment used hydraulic jacks and tight chain tight when the subsidiary components such as chains. Machine head by the head frame, motor, fluid coupling, red

5、ucer, such as pieces of the composition and sprocket. The transition from the central trough, the central groove, scraper chain and the composition of such pieces. Rear scraper plane for the return of the device chain. Heavy-duty scraper conveyor tail and nose of the same are also provided with powe

6、r transmission devices, from the install location to distinguish under the name on the nose and head. Scraper conveyor of work? Scraper conveyor of the working principle and basic structure, and our country in the years 186-189 AD between the invention of "roll-over" - water is the same keel.

7、 However, the use of scraper conveyor transported materials kibbling is the beginning of this century developed in the United Kingdom industry. Scraper conveyor early, simple structure and light, then it is only used to transport coal, manual loading of coal; low transport capacity, a maximum of onl

8、y a few dozen tons per hour; conveyor only tens of meters in length;-power small, traction chain the intensity is not high. After years of improvement and development, with fully mechanized coal mining face of the scraper conveyor, in addition to coal, there are four functions: to the shearer for or

9、bit; to pull shift hydraulic support for fixed-point shift care ; clean up floating face coal; hoisting cables, pipes, tubes, etc. emulsion. Scraper conveyor in fully mechanized coal face shearer and hydraulic support and co-ordination work. Scraper conveyor of the working principle is to open the c

10、hute, as coal, waste or materials, such as pieces of the bear will be fixed in the chain scraper (scraper chain component), as components of traction. When the Department of nose after transmission, the chain wheel drive shaft rotating head, so that the cycle runs driven scraper chain stores along t

11、he chute to move the head up to the unloading machine. Scraper chain sprocket for no class to bypass the closed cycle operation, the completion of the delivery of materials. Scraper conveyor What advantages and disadvantages? Scraper conveyor is the main advantages and disadvantages: advantages:

12、 1, the structure of a solid. Can withstand coal, waste or other materials of red, hit, hit, pressure and other external force. 2, able to adapt to uneven floor coal face, bending over the need for vertical or horizontal can withstand the bending direction. 3, body short, easy to install. 4, c

13、an act as Shearer orbit. 5, can reverse run, easy to deal with the accident at the end of chain. 6, fluid can be the fulcrum of the preceding night stand. Disadvantages: 1, no-load power consumption of a greater power for the total about 30%. 2, not long-distance transmission. 3, prone t

14、o swap chain, jumped the accident chain. 4, consumption of steel and more. Costs. Scraper conveyor through several stages of development? Scraper conveyor in the production of coal mine development and construction, more or less gone through three stages. The first phase of 30-40 years, is detac

15、hable scraper conveyor, which can only be a straight line in the face with the laying, with the face forward, need manual demolition, removal, assembly. Scraper chain plate, more than a single chain, such as V-type, SGD-11 type, SGD-20 type, such as low-power light scraper conveyor. The second stage

16、 is the early 40's from Germany to produce flexible scraper conveyor, with Shearer, metal stent with a mechanized mining. Cough such scraper conveyor to adapt to uneven floor and the level of convex curved surfaces, such as conditions shift, is not required for demolition, and coal have also increas

17、ed, such as the Model SGW-44-type scraper conveyor is the phase of the representative products. Into the 60's as a result of the emergence of hydraulic support, in order to meet the needs of fully mechanized mining, scraper conveyor to the third phase of development, developed a cough sheathed high-

18、power heavy-duty scraper conveyor bending, such as SGD-630/75 type, SGD -630/180 type belonging to this stage is the product. To the 70's, with a large number of applications shearer, a SGW-40, SGW-44-type scraper conveyor can be curved to achieve the non-disintegration and sub-delivered non-stop si

19、nce the transfer, transport capacity to 200 t / h. Since the 80's, will soon face the development of transportation equipment, due to the emergence of new types of coal cutter, scraper conveyor has a vastly different situation. Shearer to be a result of walking in the conveyor, conveyor requires not

20、 only strength to ensure stability in the work of Shearer, and to match production capacity with the shearer to keep the scraper conveyor of heavy development. Models are representative of SGW-150 and SGW-250 type. With the emergence of high-power shearer, a number of scraper conveyor of power has r

21、eached 800 ~ 900 kW, the transport capacity of 2000 ~ 2500t / h, can yield 300 to adapt to face four million t / a production-scale requirements of [ 3]. Scraper conveyor 90 during transport capacity in order to achieve the 3500t / h, from the corresponding Width 730 ~ 760mm increased to 980 ~ 1100m

22、m, chain speed from 1m / s increased to about 1.57m / s, scraper conveyor has the power 1600kW. At present, with the coal face of increasing production capacity, scraper conveyor major trends are: 1, big traffic. Countries have advanced the development of coal transport capacity of up to an hou

23、r 1500t (80's) 3500t (90's) of the scraper conveyor. 2, long distance transport. Stage in order to reduce the coal mining area of the loss column, increase the length of face, the length of scraper conveyor has reached more than 335 meters. 3, high-power electric motors. Electrical power has bee

24、n developed to the single-speed motor of 525kW, two-speed motor 500/250kW. 4, long life. As a result of the use of large-diameter ring chain, an increase of the intensity of scraper chain, extended the life span of scraper conveyor, coal machine had reached more than 6,000,000 tons. New type of

25、 scraper conveyor Down the coal mining, or other useful minerals, and only have value out of mine. Therefore, the process of coal production and transport is a very important part. Scraper conveyor coal shipment is the first link, the scraper conveyor of transmission capacity in the coal face to a

26、large extent determines the capacity and efficiency. However, in the face of transport and underground tunnel, and roadway conditions are based on coal, according to the needs of the mining method, the integration of the requirements of the rock in the coal seam or cut out. Therefore, the undergroun

27、d transport is characterized by the conditions: cross-section of the roadway in a limited run; line is staggered and tilted to connect; transport of goods in a variety of cargo; loading points often change, and some lines need to be extended or shortened; mechanized mining coal production, hours of

28、high productivity; environmental humidity, and some workplaces have gas or coal dust. It can be seen that as a coal face and the coal mining area of roadway machinery - scraper conveyor in use, it is necessary to bear the pull, pressure, bending, impact, friction and corrosion and other effects, the

29、re must be sufficient strength, stiffness, wear resistance and corrosion resistance. Mode of transport because of its materials and scraper chain sliding in the bed, running resistance and wear great. However, the coal in the coal face, there is no better machine to replace it. Only from the structu

30、re, strength and manufacturing processes to look at improving constantly, making it more comprehensive, durable. This shows that the scraper conveyor is to transport coal and other minerals essential for the transport machinery. Scraper conveyor in the coal mine fully mechanized coal mining face ma

31、jor task is to take the coal shearer continuously reproduced to machine, to ensure that the fully mechanized coal mining face straight out of the coal. Scraper conveyor in coal mines, chemical mines, metal mines and power plants and other materials used to transport an important means of trans

32、port. It is from the central tank, chain, scraper and traction system. Among them, the central scraper conveyor trough is a major part of the central trough of steel has nearly a hundred years of history, in the course of a long-term use of the following shortcomings: ① the weight of large, time-con

33、suming installation and removal; ② central trough is generally 6 ~ 15mm from the plate made by the larger deformation of the shock easy, more difficult to repair; ③ poor corrosion resistance; ④ poor wear resistance; ⑤ the materials and the friction coefficient of the central trough, and the power sc

34、raper conveyor large part of consumption in the materials and the friction on the central trough, resulting in excessive energy consumption, increased investment. UHMWPE is used to create scraper conveyor in the plate, steel plate to resolve the problems, the plastic scraper conveyor. For small scra

35、per conveyor can be modified to produce ultra-high molecular weight polyethylene scraper conveyor. Shearer for the above large-scale walking scraper conveyor, it is necessary to adopt the method of composite steel with ultra-high molecular weight polyethylene as a lining, large-scale scraper conveyo

36、r to increase the wear resistance, long life, low friction coefficient, which lower power consumption and reduction of the traction drive system requirements, this large-scale scraper conveyor of great significance. This product is developed by the Shandong University of Science and Technology, can

37、be used in coal mines, chemical mines, metal mines and power plants, such as transport of materials. Function of the scraper conveyor generally 25 ° in the use of the following conditions. Scraper conveyor in use, it is necessary to bear the pull, pressure, bending, impact, friction and corrosion a

38、nd other effects, therefore, must have sufficient strength, stiffness, wear resistance and corrosion resistance. Mode of transport because of its materials and scraper chain sliding in the bed, transport and abrasion resistance are great. However, the coal in the coal face, there is no better machin

39、e to replace it. Only from the structure, strength and manufacturing processes to look at improving constantly, making it more comprehensive, durable. 刮板輸送機 KS刮板輸送機 用刮板鏈牽引，在槽內(nèi)運送散料的輸送機叫刮板輸送機。 　　刮板輸送機的相鄰中部槽在水平、垂直面內(nèi)可有限度折曲的叫可彎曲刮板輸送機。其中機身在工作面和運輸巷道交匯處呈90度彎曲設(shè)置的工作面輸送機叫“拐角刮板輸送機”。 　　在當(dāng)前采煤工作面內(nèi)，刮板輸送機

40、的作用不僅是運送煤和物料，而且還是采煤機的運行軌道，因此它成為現(xiàn)代化采煤工藝中不可缺少的主要設(shè)備。刮板輸送機能保持連續(xù)運轉(zhuǎn)，生產(chǎn)就能正常進行。否則，整個采煤工作面就會呈現(xiàn)停產(chǎn)狀態(tài)，使整個生產(chǎn)中斷。 　　刮板輸送機是由哪些部件組成？ 　　各種類型的刮板輸送機的主要結(jié)構(gòu)和組成的部件基本是相同的，它由機頭、中間部和機尾部等三個部分組成。 　　此外，還有供推移輸送機用的液壓千斤頂裝置和緊鏈時用的緊鏈器等附屬部件。機頭部由機頭架、電動機、液力偶合器、減速器及鏈輪等件組成。中部由過渡槽、中部槽、鏈條和刮板等件組成。機尾部是供刮板鏈返回的裝置。重型刮板輸送機的機尾與機頭一樣，也設(shè)有動力傳動裝置，從安設(shè)

41、的位置來區(qū)分叫上機頭與下機頭。 刮板輸送機的工作原理是什么？ 　　刮板輸送機的工作原理和基本結(jié)構(gòu)，與我國在公元186至189年間發(fā)明的“翻車”——龍骨水車是相同的?？墒牵霉伟遢斔蜋C運送散碎物料，是在本世紀(jì)初出現(xiàn)于工業(yè)發(fā)達的英國。早期的刮板輸送機，結(jié)構(gòu)簡單輕便，那時它僅是運煤之用，人工裝煤；運輸能力低，每小時最多只有幾十噸；輸送機長度只有幾十米；功率小，牽引鏈的強度也不高。經(jīng)過多年的改進和發(fā)展，目前綜采工作面用的刮板輸送機，除了運煤之外，還有四種功能：給采煤機作運行軌道；為拉移液壓支架作托移固定點；清理工作面的浮煤；懸掛電纜、水管、乳化液管等。刮板輸送機在綜采工作面與采煤機和液壓支架配套工

42、作。刮板輸送機的工作原理是，將敞開的溜槽，作為煤炭、矸石或物料等的承受件，將刮板固定在鏈條上（組成刮板鏈），作為牽引構(gòu)件。當(dāng)機頭傳動部啟動后，帶動機頭軸上的鏈輪旋轉(zhuǎn)，使刮板鏈循環(huán)運行帶動物料沿著溜槽移動，直至到機頭部卸載。刮板鏈繞過鏈輪作無級閉合循環(huán)運行，完成物料的輸送。 刮板輸送機有什么優(yōu)缺點？ 　　刮板輸送機主要優(yōu)缺點是： 　　優(yōu)點: 1、結(jié)構(gòu)堅實。能經(jīng)受住煤炭、矸石或其他物料的沖、撞、砸、壓等外力作用。 　　2、 能適應(yīng)采煤工作面底板不平、彎曲推移的需要，可以承受垂直或水平方向的彎曲。 　　3、機身矮，便于安裝。 　　4、能兼作采煤機運行的軌道。 　　5、可反向運行，便于

43、處理底鏈?zhǔn)鹿省? 　　6、能作液夜支架前段的支點。 　　缺點: 　　1、空載功率消耗較大，為總功率的30%左右。 　　2、不宜長距離輸送。 　　3、易發(fā)生掉鏈、跳鏈?zhǔn)鹿省? 　　4、消耗鋼材多。成本大。 刮板輸送機的發(fā)展經(jīng)過幾個階段？ 　　刮板輸送機在煤礦的生產(chǎn)與建設(shè)中的發(fā)展，大致經(jīng)歷了三個階段。第一階段在30-40年代，是可拆卸的刮板輸送機，它在工作面內(nèi)只能直線鋪設(shè)，隨工作面的推進，需人工拆卸、搬移、組裝。刮板鏈?zhǔn)前迨?，多為單鏈，如V型、SGD-11型、SGD-20型等小功率輕型刮板輸送機。第二階段是40年代前期由德國制造出可彎曲刮板輸送機，它與采煤機、金屬支架配合實現(xiàn)了機械化采

44、煤。這種刮板輸送機咳適應(yīng)底板不平凸凹凸不平和水平彎曲等條件，移設(shè)時不需拆卸，并且運煤量也有所增大，如當(dāng)時的型號SGW-44型刮板輸送機就是這個階段的代表產(chǎn)品。進入60年代由于液壓支架的出現(xiàn)，為了適應(yīng)綜采的需要，刮板輸送機發(fā)展到了第三階段，研制出大功率鎧裝咳彎曲重型刮板輸送機，如SGD-630/75型、SGD-630/180型等就是屬于這個階段的產(chǎn)品。到了70年代，隨著采煤機的大量應(yīng)用，出現(xiàn)了SGW-40、SGW-44型可彎曲刮板輸送機，實現(xiàn)了不解體和不停運分段自移，運輸能力提高到200 t/h。80年代以來，工作面運輸設(shè)備發(fā)展很快，由于各種新型采煤機的出現(xiàn)，刮板輸送機已大為改觀。因采煤機要在輸

45、送機上行走，不僅要求輸送機強度大，保證采煤機工作穩(wěn)定，且要與采煤機生產(chǎn)能力相匹配，促使刮板輸送機不斷向重型化發(fā)展。代表機型有SGW-150和SGW-250型。隨著大功率采煤機的出現(xiàn)，一些刮板輸送機的功率已達800～900 kW，運輸能力達2000～2500t/h，能適應(yīng)工作面單產(chǎn)300～400萬t/a的生產(chǎn)規(guī)模要求[3]。90年代刮板輸送機的運輸能力以達到3500t/h，槽寬也相應(yīng)的從730～760mm增大到980～1100mm，鏈速從1m/s左右增大到1.57m/s，刮板輸送機的功率已達1600kW。 　　目前，隨著采煤工作面生產(chǎn)能力的不斷增大，刮板輸送機主要發(fā)展趨勢是： 　　1、大運輸

46、量。國外先進采煤國家已經(jīng)發(fā)展到小時運輸能力高達1500t（80年代）3500t（90年代）的刮板輸送機。 　　2、長運輸距離。為了減少采區(qū)階段煤柱的損失量，加大工作面的長度，刮板輸送機的長度已經(jīng)達到335米以上。 　　3、大功率電動機。電動機的功率已發(fā)展到單速電機達525kW，雙速電機500/250kW。 　　4、壽命長。由于使用大直徑圓環(huán)鏈，增加了刮板鏈的強度，延長了刮板輸送機的壽命，整機過煤量高達600萬噸以上。 新型刮板輸送機 采掘下來的煤或其它有用礦物，只有運出礦井才有使用價值。因此，運輸是煤炭生產(chǎn)過程中非常重要的一部分。刮板輸送機是煤炭裝運的第一個環(huán)節(jié)，因此，刮

47、板輸送機的輸送能力在很大程度上決定了采煤工作面的生產(chǎn)能力和效率。然而，井下運輸在工作面和巷道中進行，巷道是根據(jù)煤層條件，按開采方法的需要，綜合各種要求，在煤層或巖石中開鑿出的。因此，井下運輸條件的特點是：在有限斷面的巷道內(nèi)運行；線路是水平和傾斜交錯連接；運輸?shù)呢涊d品多種多樣；裝載點常常變更，有的線路需經(jīng)常延長或縮短；機械化采煤連續(xù)生產(chǎn)、小時生產(chǎn)率高；環(huán)境濕度大，有的工作地點有沼氣或煤塵。由此可見，作為為采煤工作面和采區(qū)巷道運煤的機械——刮板輸送機在使用中，要承受拉、壓、彎曲、沖擊、摩擦和腐蝕等多種作用，必須要有足夠的強度、剛度、耐磨和耐腐蝕性。由于它的運輸方式是物料和刮板鏈都在槽內(nèi)滑行，運行阻

48、力和磨損都很大。但是，在采煤工作面運煤，目前還沒有更好的機械可代替它。只能從結(jié)構(gòu)上、強度上和制造工藝上不斷研究改進，使它更加完善、耐用。由此可見，刮板輸送機是煤炭等礦物運輸中必不可少的運輸機械。 刮板輸送機在煤礦井下綜采工作面中主要承擔(dān)的任務(wù)是將采煤機采下的原煤連續(xù)不斷地運往轉(zhuǎn)載機，確保綜采工作面的原煤連續(xù)運出。 刮板輸送機是煤礦、化學(xué)礦山、金屬礦山及電廠等用來輸送物料的重要運輸工具。它是由中部槽、鏈條、刮板及牽引系統(tǒng)組成。其中，中部槽是刮板輸送機的主要部分，鋼制的中部槽已有近百年的歷史，在長期的使用過程中存在以下缺點：①重量大，安裝和搬運費時費力；②中部槽一般是由6~15mm的鋼

49、板制成，在受到較大的沖擊時易變形，修復(fù)比較困難；③耐腐蝕性差；④耐磨性差；⑤物料與中部槽的摩擦系數(shù)大，刮板輸送機的功率大部分消耗于物料與中部槽的摩擦力上，造成了能耗過大、投資增加。 　　用超高分子量聚乙烯是制造刮板輸送機的中板，可解決鋼制中板所存在的問題，得到塑料刮板輸送機。對于小型刮板輸送機可以通過改性超高分子量聚乙烯來制造刮板輸送機。對于上面行走采煤機的大型刮板輸送機，要采用鋼塑復(fù)合的方法，用超高分子量聚乙烯作為襯里，提高大型刮板輸送機的耐磨性，延長使用壽命，降低摩擦系數(shù)，從而降低功率消耗并降低對牽引、傳動系統(tǒng)的要求，這對大型刮板輸送機有巨大意義。本產(chǎn)品由山東科技大學(xué)研制，可用于煤礦、化學(xué)礦山、金屬礦山及電廠等物料運輸。 一般的刮板輸送機能在25°以下的條件下使用。刮板輸送機在使用中，要承受拉、壓、彎曲、沖擊、摩擦和腐蝕等多種作用，因此，必需有足夠的強度、剛度、耐磨性和耐腐蝕性。由于它的運輸方式是物料和刮板鏈都在槽內(nèi)滑行，運輸阻力和磨損都很大。但是，在采煤工作面運煤，目前還沒有更好的機械可代替它。只能從結(jié)構(gòu)上、強度上和制造工藝上不斷研究改進，使它更加完善、耐用。