外文翻譯--大型煤炭經(jīng)營(yíng)設(shè)備

1、<p><b>　　第六章 英文翻譯</b></p><p><b>　　英文原文：</b></p><p>　　Chute Design In A Large Coal Handling Facility</p><p>　　David Charles Morgan</p><

2、p>　　T.C.C.(Mech .Eng.)MEMN</p><p>　　Acknowledgements: The Bionic Research Institute, Chute Design Conference 1991</p><p>　　The paper gives a brief overview of coal handling at the Syferfont

3、ein Mine, in the Overland Conveyor System, and in the stockyards.</p><p>　　The criteria for selection of chute design are discussed, and design alternatives evaluated.</p><p>　　David Charles Mor

4、gan is Projects Manager (Materials Handling) with Keeve Steyn Inc. He is a member of the Institute of Materials Handling, and has wide experience in bulk materials handling and installation.</p><p>　　REQUI

5、REMENT FOR A NEW MINE</p><p>　　Syferfontein Colliery is an entirely new open cast mine situated at Trichardt in the Eastern Transvaal. The purpose of the mine is to supplement the coal supply to Sasol II an

6、d Sasol III factories at Secunda and will produce coal in conjunction with four existing mines in the Secunda area.</p><p>　　When fully operational the mine will supply some 7 million tons of coal per annum.

7、 This coal will be of a higher grade than that produced from the existing mines and by the mining methods employed, will generate a product with a much lower fines content.</p><p>　　To ensure continuity of p

8、roduct quality to the factories it is necessary to both blend the new mine’s coal with that of the existing underground mines and to homogenize the product to ensure an even distribution of fines. The control of the prod

9、uction of fines on the new mine and the transport systems has been of paramount importance and studies conducted by Sasol on the existing systems have been utilised in the design of the transfer points and the design cri

10、teria of the conveyors.</p><p>　　MINE OPERATION</p><p>　　Coal is strip mined and transported to the coal preparation plant in trucks with capacities of up to 170 tons. The of mine coal is loaded

11、 into a hopper below ground level in the primary crushing building where it is extracted by means of an apron conveyor.</p><p>　　-300mm Material is extracted by means of a live grizzly and transported by con

12、veyor direct to the secondary crushing plant. The +300mm material is transported via a second apron conveyor to a jaw crusher where it is broken down to -300mm and dispatched to the secondary crushing plant.</p>&

13、lt;p>　　Prior to secondary crushing the -100mm product is screened out and the crushing by-passed whilst oversize is broken down to the required -100mm by means of a rotary breaker .Rock present in the product at this

14、point is removed by the rotary breaker and discharged by conveyor onto a waste rock pile. The final product now plus fines generated in the mining and reduction process is delivered to a fines screening plant where the

15、desired portion of -6.4mm product is removed from the final product.</p><p>　　Throughput of the mine is such that the handling system and plant is capable of handling 2400 ton/hour of R.O.M coal.</p>

16、<p>　　A circular stockpile acts as a buffer between the overland transportation system, from which coal may be extracted at 2000 ton per hour.</p><p>　　To minimize degradation en-route the overland syst

17、em has been kept to 3 conveyors of which the first is a slow running collection conveyor. Of the other 2 flights, have been selected at 8 km and 12 km respectively to keep transfer points to a minimum and belt sag has be

18、en restricted to 1% to minimize degradation of the coal en route.</p><p>　　A splitter bin at the factory distributes coal to either the Sasol II or Sasol III stockyards. The new system at Secunda consists of

19、 an additional 2 slewing stackers and 2 barrel reclaimers, together with a distribution system to the existing stackers and a reclaim system to the factories.</p><p>　　Despite keeping the transfer points to

20、minimum a total of 30 individual transfers occur from the R.O.M. intake hopper at the primary crushing building to the stockpiles at Secunda. Careful design of the transfer points to keep degradation to a minimum was th

21、erefore quite essential.</p><p>　　Sasol’s policy is one of constant improvement and in the process of fixing the conceptual layout many changes occurred both on concept and process requirements. This involve

22、d radical changes particularly to the stockyard system from the time of initial conception. This allowed innovative thought to at times complex transfer stations.</p><p>　　CHUTE DESIGN</p><p>　　

23、CONVEYOR CHUTEWORK</p><p>　　To achieve the objectives of Sasol and the necessity to keep degradation to a minimum it was necessary to move away from conventional chutes. Various types of transfer were invest

24、igated, catering from in-line dedicated discharge through to multi-discharge and proportioning chutes.</p><p>　　Investigations with Sasol showed that the low headroom curved chute with moving head for multi-

25、discharge was the ideal and enquiries and designs were based on this concept. The specification for the chutes being as follows:</p><p>　　CHUTE SPECIFICATION</p><p>　　The elimination of coal deg

26、radation in chutes is of paramount importance and the following are factors influencing the design of degradation free chutes:</p><p>　　A large convex curve of the troughed belt to the head pulley circumfere

27、nce ensuring inherently stable belt and payload with the initial trajectory point lying t 5 out bye of the top dead centre of the head pulley.</p><p>　　Suitably designed belt transition at the head end en

28、suring a smooth change of payload cross of payload cross section with minimum surface lump coal movement.</p><p>　　Head pulley of larger diameter than necessary by belt requirements ensuring a more compact

29、 trajectory.</p><p>　　The compaction pressure of the coal , determined from its critical superficial moisture level and upper, lower and average size distribution, critical in determining the initial sliding

30、 angle of the coal.</p><p>　　Assuring that the coal does not impact on any surface but lands at a low angle of incidence and that free fall is restricted to 500 mm maximum. Preferably coal should slide on th

31、e chute for the greatest possible length.</p><p>　　The larger sized coal be cushioned by the fines on landing in the chute.</p><p>　　Discharge of the coal onto the following belt at a near match

32、ing speed and inclined at to prevent possible damage to the belt by gouging, cutting or piercing.</p><p>　　All main stream transfer chutes are to consist of the following sections.</p><p>　　A f

33、irst section tangent to the bottom face of the trajectory, tapering from head chute width to chute discharge width and transforming from a rectangular cross section to a semi-circular section with upper vertical sides a

34、nd top. The tapering sides to deflect loose lumps back to the main trajectory flow. The length and angle of decline of this section to be determined from coal discharge speed.</p><p>　　A second section of s

35、emi-circular cross section with upper vertical sides and top at 300 and 1 m long ensuring that the top of the trajectory meets the coal already sliding in the chute at a very low angle of incidence.</p><p>　

36、　For in-line transfers, the remaining section/s to be as for the second with angle of decline designed to ensure matching discharge coal and receiving belt speed. The length determined by required height of transfer but

37、to be not less than 1 m.</p><p>　　For angled transfers, the third section to consist of a circular cross section, the length and angle of decline determined by the angle and height of transfer.</p>&l

38、t;p>　　The fourth section for angled transfers to consist of a semi-circular cross section with upper vertical sides and top with a minimum length of 2 m at 30 .For a longer section, the last 2m to be at 30 with the an

39、gle of decline of the remainder determined by calculation.</p><p>　　It is required that tests be conducted on the coal to be transported, with the assistance of a neutral body chosen by the contractor and ap

40、proved by Sasol, before chute designs are finalized.</p><p>　　Chuting shall be manufacturer in mild steel.The chuting shall be of the same thickness of metal throughout and be fabricated in lengths with a ri

41、gid angle framework at the ends for bolting the chuting together to ensure easy access to pulleys. No section of chuting shall exceed 3m in length or 3 t in mass, including liners.</p><p>　　Transfer chute de

42、sign shall be such that the material feed onto the succeeding conveyor is central and in the direction of conveyor travel. All inside surfaces in contact with the conveyed material shall be free from projecting bolts, ri

43、vers, high edges, plug etc.</p><p>　　Starting and stopping of the belt shall be taken into consideration in the design of the chutes and the chutes shall be capable of accepting the overrun of material, with

44、out spillage of any material.</p><p>　　The width of the loading chute shall not be greater than 2/3 of the receiving belt measured at the point where the material discharges onto the belt.</p><p&g

45、t;　　Flanges of chutes shall be fully welded along the inside of the chute. Welding along the outside may be staggered except where corrosion can occur.</p><p>　　For ease of maintenance access, the non-materi

46、al carrying side of the chute shall be removable in panels which can be manhandled. These panels shall be securely bolted to the body of the chute and to each other for the full width of the panel, to provide rigidity an

47、d contain dust. Each panel shall be equipped with suitable lifting handles or lugs for ease of handling.</p><p>　　Ceramic tile liners shall be provided wherever wear can occur and these shall be adequately f

48、astened to prevent dislodging under all conditions of material flow. Liners shall be easily replaceable and/or interchangeable where possible. Each tile to be fastened to the chute body or alternatively, every third row

49、to be secured to the chute body.</p><p>　　Joints shall be made to fit exactly to eliminate turbulence in the conveyed material and any inequalities shall be removed. Similarly casings shall not protrude on t

50、he inside of chutes.</p><p>　　Dribble chutes receiving fines from the belt cleaners or larger sizes during start-up or stopping and depositing it directly onto the following belt for inline transfer or belt

51、feeder for angled transfer, shall have vertical sides where possible to prevent material build up.</p><p>　　RUN OF MINR FEED CHUTES</p><p>　　VRN 400 liners shall be provided wherever wear can oc

52、cur, these shall be adequately fastened to prevent dislodging under conditions of material flow. Liners shall be easily replaced and/or interchangeable where possible. The Contractor is to deliver a complete set of steel

53、 templates for the manufacture of spare liners, and the cost of such templates is to be included in the tender price. The maximum mass of any one liner shall be 25 kg with maximum wider of 500 mm gaps between liners shal

54、l not e</p><p>　　Joints shall be made to fit exactly to eliminate turbulence in the conveyed material and any burrs or inequalities shall be removed before. Or during erection. Similarly bolt or screw or nut

55、s shall not protrude on the inside of chutes.</p><p>　　Dribble chutes receiving fines from the belt cleaners or larger sizes during start-up or stopping and depositing it directly it directly onto the follow

56、ing belt or in-line transfer or belt feeder for angled transfer, shall have vertical sides where possible to prevent material build up.</p><p>　　The principle ado pted in the in-line transfer on the overland

57、 system was that at normal running speeds the coal leaving the head pulley would be projected across an opening and would be caught on a shallow angled sloping face of the chute throat where the coal would slide in a con

58、trolled manner onto the next conveyor.</p><p>　　SYFERFONTEIN COLLIERY TYPICAL OFFSET </p><p>　　TRANSFER NORMAL RUNNING CONDITION</p><p><b>　　漢語(yǔ)翻譯：</b></p><p&g

59、t;　　斜槽溝在A里設(shè)計(jì) 大型煤炭經(jīng)營(yíng)設(shè)備 </p><p>　　大衛(wèi)·查爾斯·摩根 </p><p>　　T.C.C.(技工。 英國(guó))MEMN </p><p>　　認(rèn)證： 生物電子裝置研究院，斜槽溝設(shè)計(jì)會(huì)議1991 </p><p>　　文章給在Syferfontein我的處理的煤的簡(jiǎn)短概述，以及在陸上的輸出入差

60、損補(bǔ)償制里，和在牲畜柵。 </p><p>　　斜槽溝設(shè)計(jì)的選擇的標(biāo)準(zhǔn)被討論，并且設(shè)計(jì)選擇評(píng)價(jià)。 </p><p>　　大衛(wèi)·查爾斯·摩根是基夫·斯泰恩股份有限公司的工程經(jīng)理(材料處理)他是一名操作材料的研究所的成員， 并且大批有廣泛的操作經(jīng)驗(yàn)的材料和安裝一座新礦的要求。 </p><p>　　Syferfontein是一座新開(kāi)煤礦，位

61、于Trichardt的我的在那些東Transvaal內(nèi)。 礦的目的是補(bǔ)充煤在Secunda 提供到Sasol II 和Sasol III家工廠， 并且將與在Secunda地區(qū)的4 座現(xiàn)有的礦一道生產(chǎn)煤。 </p><p>　　完全操作時(shí)礦每年將提供大約700萬(wàn)噸煤。 與由現(xiàn)有的礦產(chǎn)生的那相比較，這煤將具有更高的等級(jí)，和以雇用的采礦方法， 將有非常低罰款含量產(chǎn)生一種產(chǎn)品。 </p><p>

62、　　為了保證工廠得到產(chǎn)品質(zhì)量的連續(xù)性，都混合新我的是必要的煤， 由于存在的地下礦的和使這種產(chǎn)品均勻保證一種罰款的平穩(wěn)的配給。 罰款關(guān)于新我的和運(yùn)輸系統(tǒng)的生產(chǎn)的控制已經(jīng)具有 在現(xiàn)有的系統(tǒng)上Sasol 處理的最高的重要性和研究已經(jīng)被在轉(zhuǎn)運(yùn)站的設(shè)計(jì)和輸送裝置的設(shè)計(jì)標(biāo)準(zhǔn)過(guò)程中利用。 </p><p>　　煤是開(kāi)采并且運(yùn)輸?shù)矫旱膸?zhǔn)備用最多170噸的容量賦予卡車(chē)。 我的煤被裝進(jìn)漏斗在下面在哪里已經(jīng)通過(guò)蓋板輸送裝置選出的那些

63、主要壓壞的大樓地面。 -300毫米材料被選出通過(guò)一活灰色和運(yùn)輸以輸送裝置指向幾那些二次壓壞植物。 +300mm 材料被經(jīng)由第2 蓋板輸送裝置到一臺(tái)下巴破碎機(jī)運(yùn)送，在那里它被毀壞成-300mm并且發(fā)送到壓壞植物的二次。 </p><p>　　在壓壞那些-100mm 產(chǎn)品的二次之前被擋開(kāi)和壓壞給開(kāi)旁路當(dāng)時(shí)太大被壞到被要求的-100mm， 通過(guò)旋轉(zhuǎn)的斷路器。 存在于這種產(chǎn)品的巖石在這點(diǎn)被旋轉(zhuǎn)的斷路器除去并且被到浪費(fèi)巖石

64、堆上通過(guò)輸送裝置卸。 在采礦過(guò)程中產(chǎn)生的現(xiàn)在的這種最后的產(chǎn)品和罰款和削減過(guò)程被交付到篩選工廠的罰款， 這里-6.4mm 產(chǎn)品的被要求的部分被從這種最后的產(chǎn)品除去。 </p><p>　　礦的流量是如此以至處理系統(tǒng)和植物能處理2400噸/小時(shí)R.O.M 煤。 </p><p>　　圓的積壓作為在陸上的運(yùn)輸系統(tǒng)之間的一個(gè)緩沖區(qū)，其中煤可能被以每個(gè)小時(shí)2000噸選出。 </p>&

65、lt;p>　　在使墮落減到最小在途中陸上系統(tǒng)遵守哪個(gè)第1 一慢跑收集輸送裝置的3 輸送裝置。 其它2次航班， 已經(jīng)被8點(diǎn)選擇 分別控制轉(zhuǎn)運(yùn)站到最低限度的公里和12 公里和腰帶下跌在途中使煤的墮落減到最小是限制到1%的。 </p><p>　　在工廠的一個(gè)分解器箱子將煤分配給Sasol II或者Sasol III個(gè)牲畜柵。 新系統(tǒng)在Secunda由另外的2個(gè)旋轉(zhuǎn)的堆垛工和2個(gè)桶reclaimers組成， 以及

66、一銷(xiāo)售制度與現(xiàn)有堆垛工和一恢復(fù)的系統(tǒng)給工廠。 </p><p>　　盡管控制轉(zhuǎn)運(yùn)站到最低限度共30次個(gè)人的轉(zhuǎn)移從R.O.M. 吸入漏斗發(fā)生， 在積壓的主要決定性的大樓在Secunda。 控制墮落到最低限度的轉(zhuǎn)運(yùn)站的詳細(xì)的設(shè)計(jì)因此十分必要。 </p><p>　　Sasol ' s 政策是恒定的改進(jìn)之一，在修理概念的布局過(guò)程中很多變化關(guān)于概念和工藝要求發(fā)生。 這從最初概念以來(lái)到牲畜柵

67、體制包含徹底的變化特別是。 這對(duì)有時(shí)復(fù)雜的傳送站允許革新的想法。 </p><p><b>　　斜槽溝設(shè)計(jì) </b></p><p>　　輸送裝置CHUTEWORK </p><p>　　為了達(dá)到Sasol和需要的目標(biāo)控制墮落到最低限度，從傳統(tǒng)的斜槽溝移開(kāi)是必要的。 不同類(lèi)型轉(zhuǎn)移調(diào)查，備辦食物從成隊(duì)奉獻(xiàn)直達(dá)多解除卸和使斜槽溝均衡。 </p

68、><p>　　調(diào)查與顯示低巷道高度弄彎與移動(dòng)一起的斜槽溝的Sasol一起走向多解除是理想和調(diào)查和設(shè)計(jì)基于這個(gè)概念。 斜槽溝如下的說(shuō)明： </p><p><b>　　斜槽溝說(shuō)明 </b></p><p>　　消除煤墮落在斜槽溝里是最重要的，如下內(nèi)容是影響墮落免費(fèi)斜槽溝的設(shè)計(jì)的因素： </p><p>　　一條troughed

69、帶的大的凸的曲線到保證天生穩(wěn)定的帶子和凈載重量的頭滑車(chē)周長(zhǎng)， 由于最初軌道點(diǎn)躺出于頭滑車(chē)的最高的正中心的再見(jiàn)的t 5。 </p><p>　　在首部結(jié)尾用最小表面塊煤運(yùn)動(dòng)保證一種凈載重量橫斷面的凈載重量十字架的順利的變化適合設(shè)計(jì)帶子為過(guò)渡。 </p><p>　　頭更大的直徑的滑車(chē)保證一條更小型的軌道的必要以腰帶要求。 </p><p>　　煤的緊密程度壓力， 根據(jù)

70、它的臨界的表面的水分水平和上面決定，更低和平均顆粒分布，在確定最初滑動(dòng)的煤的角度過(guò)程中關(guān)鍵。 </p><p>　　向煤不對(duì)任何表面有影響保證但是土地在一低入射角和免費(fèi)下降限制到最大的500毫米。 盡可能煤應(yīng)該在盡可能大的長(zhǎng)度的斜槽溝上滑動(dòng)。 </p><p>　　更大的依大小排列的煤在在斜槽溝里登陸之后被罰款緩沖的沖擊。 </p><p>　　煤到下列帶子上的解除

71、在一近相配速度并且傾斜對(duì) 通過(guò)鑿孔，切或者尖銳防止可能的對(duì)這條帶子的損害。 </p><p>　　全部主要溪轉(zhuǎn)移斜槽溝將由以后的章節(jié)組成。 </p><p>　　一條第一個(gè)部分切線到軌道的最后的表面， 從頭斜槽溝寬度漸減到斜槽溝卸寬度，從矩形的橫斷面改變到一個(gè)半圓的部分用上面垂直的邊和頂。 將松散的塊偏斜回主要軌道的漸減的邊流動(dòng)。 長(zhǎng)度和根據(jù)煤決定的這部分的下降的角卸速度。 <

72、/p><p>　　有上面垂直的邊和頂?shù)陌雸A的橫斷面的第2個(gè)部分 以保證軌道的頂遇見(jiàn)在一個(gè)非常低的入射角已經(jīng)在斜槽溝里滑動(dòng)的煤的300 和1米長(zhǎng)。 </p><p>　　因?yàn)槌申?duì)轉(zhuǎn)移，剩下section/s 用用于保證匹配的下降的角度至于第二卸煤，收到帶子速度。 長(zhǎng)度要求的轉(zhuǎn)移的高度確定，但是成為不少于1米 </p><p>　　為傾斜的轉(zhuǎn)移， 第3 個(gè)部分由圓的橫斷面，

73、轉(zhuǎn)移的角和高度確定的下降的長(zhǎng)度和角組成。 </p><p>　　那些第4 個(gè)部分釣魚(yú)轉(zhuǎn)移由組成半圓橫斷面與一起上面垂直邊和加最小長(zhǎng)度的2米30點(diǎn)的頂。 一長(zhǎng)部分，在30有以計(jì)算堅(jiān)決的剩余的下降的角的最后2米。 </p><p>　　要求試驗(yàn)是實(shí)施在被運(yùn)送的煤， 有一個(gè)中立的身體的幫助被訂約人選擇并且被Sasol 批準(zhǔn)，在斜槽溝設(shè)計(jì)被落實(shí)之前。 </p><p>　　

74、用斜槽進(jìn)料將是在用斜槽進(jìn)料的溫和的steel.The里的制造商將具有相同 厚度的金屬在整個(gè)和用于栓住一同用斜槽進(jìn)料保證參與滑車(chē)容易與硬角那些末端的結(jié)構(gòu)被建立長(zhǎng)。 沒(méi)有用斜槽進(jìn)料的部分將超過(guò)3米長(zhǎng)或者在群眾里的3 t，包括郵船。 </p><p>　　轉(zhuǎn)移斜槽溝設(shè)計(jì)是如此以至那些材料將到那些成功的輸送裝置上供給中心和朝輸送裝置旅行方向。 全部?jī)?nèi)表面都與被運(yùn)送的材料接觸將沒(méi)有計(jì)劃螺栓，河，高的邊緣，塞子等等 <

75、/p><p>　　這條帶子的起停將 在斜槽溝的設(shè)計(jì)內(nèi)考慮和斜槽溝將能接受材料占領(lǐng)， 沒(méi)有任何材料的spillage。 </p><p>　　裝的斜槽溝的寬度將不大于在在哪里材料到這條帶子上卸的問(wèn)題測(cè)量的收到的帶子的2/3。 </p><p>　　斜槽溝的凸緣將被完全沿著斜槽溝的里面焊接。 除了腐蝕能發(fā)生的地方，沿著外面焊接可能被交錯(cuò)安排。 </p><

76、;p>　　對(duì)便于維護(hù)進(jìn)入來(lái)說(shuō)，帶斜槽溝的邊的非材料將在可以被用人工操作的板里可移動(dòng)。 這些板將被對(duì)斜槽溝的身體和對(duì)彼此為板的充分的寬度可靠栓住， 提供剛性并且包含灰塵。 每小組將裝有合適舉起經(jīng)營(yíng)或者適合辦理的便于用力拖。 </p><p>　　瓷磚郵船將被提供無(wú)論穿發(fā)生能哪里的任何地方和這些將足夠固定在上是防止在全部狀況的材料下驅(qū)逐流動(dòng)。 可能的話郵船將容易可替換和/或可交換。 每片瓦片固定在斜槽溝身體或者

77、，被獲得斜槽溝身體的每第3 排上。 </p><p>　　關(guān)節(jié)將被做出，以正好適合，以在被傳送的素材里消除混亂，任何不平等將被除去。 類(lèi)似汽缸將不在斜槽溝的里面上突出。 </p><p>　　滴從這條帶子清潔工或者大號(hào)得到罰款的斜槽溝， 到去一列式轉(zhuǎn)移或者帶子飼養(yǎng)員的下列帶子上直接在創(chuàng)辦中的企業(yè)或者停止和存天氣期間釣魚(yú)轉(zhuǎn)移， 可能防止物質(zhì)增加的話將有垂直的邊。 </p>&l

78、t;p>　　MINR的跑喂斜槽溝 </p><p>　　VRN 400 郵船將提供穿能發(fā)生無(wú)論哪里，這些將足夠固定在上防止驅(qū)逐在材料的條件下流動(dòng)。 郵船將容易替換和/或可交換在哪里可能。 訂約人交付一成套鋼模板給制造節(jié)省郵船， 并且這樣的模板的費(fèi)用是被歸入投標(biāo)價(jià)格。 最大群眾任何1 艘郵船將25 千克有最大在郵船之間的差距500毫米寬超過(guò)5毫米將不 </p><p>　　關(guān)節(jié)將被做出

79、，以正好適合，以在被傳送的素材里消除混亂，任何毛刺或者不平等以前將被除去。 或者在施工期間。 類(lèi)似螺栓或者螺絲或者螺母將不在斜槽溝的里面上突出。 </p><p>　　滴從這條帶子清潔工或者大號(hào)得到罰款的斜槽溝， 在創(chuàng)辦中的企業(yè)期間或者停止和直接存天氣到下列帶子上直接或者成隊(duì)轉(zhuǎn)移或者帶子飼養(yǎng)員釣魚(yú)轉(zhuǎn)移， 可能防止物質(zhì)增加的話將有垂直的邊。 </p><p>　　那些原則忙亂pted在方面成