freepeople性欧美熟妇, 色戒完整版无删减158分钟hd, 无码精品国产vα在线观看DVD, 丰满少妇伦精品无码专区在线观看,艾栗栗与纹身男宾馆3p50分钟,国产AV片在线观看,黑人与美女高潮,18岁女RAPPERDISSSUBS,国产手机在机看影片

正文內(nèi)容

外文翻譯--可伸縮懸臂式裝煤機的研制-預(yù)覽頁

2025-06-21 07:42 上一頁面

下一頁面
 

【正文】 ronment, and always face up to allow Yicha guns of the coal, employees in the work of the safety factor increased substantially. (3) operational safety, workers can significantly reduce the labor intensity, loading feature strong, tracked walking into force, to achieve fullface loading, applicable to all sections of the EOC, ramps roadway construction, the roadway or in the larger crosssection of roadway intersection Construction, we can give full play to the characteristics of its hightech productivity. (4) of the plex, and mobile and applicability, and other equipment in the roadway (such as bolt rig, drilling trucks, scraper conveyor, belt conveyors and mine car) supporting the use of. (5) the use of a machine is ZMC30Hydraulic side dump loaded coal is superior to other types of coal with the main characteristics: 1) available bucket lift heavy objects, such as supporting the use of metal stents, Margaret Fetus. 2) Lifting bucket after supporting the work could serve as platform for roof management. 3) may face shortdistance transportation of materials, such as the backplane, gravel, moving small equipment. 4) for other equipment to provide highpressure pumps, such as hydraulic powered drill bolt. 5) operational safety, can significantly reduce the risk of regional loading operations, moving material time. 6) the local excellent undercover, the performance will help the firstloading operations to achieve 100 per cent of the mechanized so that the noshovel Face really bee a reality. on the existing problems (1) If the loaded coal cars and supporting direct use, will be bucket lift height restrictions, 3 t mine car on the roadway floor flat to a high degree of m, the loaded coal unloading height of m can not be used, To be retargeted. (2) Cable drag protection issues, the aircraft operating in the process of dragging cables, the only person in the plane after a drag, there is no better way. (3) spray sprinklers, in handling the plane, not a random spray sprinkler dust supporting facilities, are currently only artificial rinse dust. (4) with the use of coal in the course of the operation of the plane found that poor people39。 倉房開采 。針對各礦在開采邊角煤、煤柱時普遍使用的倉房開采法的特點 , 晉城煤業(yè)集團技術(shù)中心根據(jù)現(xiàn)場實際需要 , 經(jīng)過調(diào)查研究 , 開發(fā)了適用于倉房開采條件下的可伸縮懸臂式裝煤機 , 以提高倉房開采的資源回收率 , 減輕工人的勞動強度 , 增加現(xiàn)場作業(yè)的安全可靠性。由于三級臂嵌套于二級臂內(nèi)、二級臂嵌套于一級臂內(nèi) , 在二級伸縮乳化液缸的作用下 , 懸臂可實現(xiàn)伸縮動作 , 伸縮量為 3 670mm~ 8 270mm。 。耙斗是容積為 的裝煤容器 , 由乳化液絞車拖動實現(xiàn)往復(fù)運動 , 從而完成裝煤機的裝煤動作。軌道行走機構(gòu)是為便于機器運輸設(shè)計的 , 適用軌道軌距為 600 mm。行走馬達通過一級齒輪減速 , 將動力傳給主動輪 , 從而實現(xiàn)機器的前進、后退。由于裝煤機在工作時需由乳化液作動力介質(zhì) , 故還需要配備一套乳化液泵站。 可伸 縮懸臂式裝煤機的井下工業(yè)性試驗在晉城煤業(yè)集團鳳凰山礦 3314 南回收煤柱放倉工作面進行 , 煤層厚度 6. 32 m , 容重 1. 5 t246。在開幫挑頂爆破后 , 空頂區(qū)堆煤高度可達 5 m左右 , 幾乎碰著頂板 ??傊?, 機器運行基本達到了設(shè)計要求。 4) 機器結(jié)構(gòu)簡單 , 操作方便 , 成本低 , 易推廣 。主要技術(shù)參數(shù)如下 : 技術(shù)鏟斗容積 : 。 最大臥底深度 : 600 mm。 額定牽引力 : 20 kN。 系統(tǒng)工作壓力 : 16 MPa。風扇電機功率 : kW。 ZMC 30 型全液壓側(cè)卸式裝煤機配套設(shè)備的改造 ( 實現(xiàn)溜子、皮帶“裝載一體化” ) 由于 ZMC 30 型裝煤機的使用場所在井下 , 空間狹小、受巷道頂板和煤幫所限 , 裝煤機在裝煤過程中需用溜子 ( 見圖 1) , 巷道運輸使用皮帶 , 溜子每 個班都要向前移動一次。 圖 1 ZMC 30 側(cè)卸式裝煤機的優(yōu)點 (1) 通風良好 , 主要表現(xiàn)在風筒不易被煤擠壓 , 掉落 , 始終保持風流正常 , 瓦斯不超限。 (5) 一機多用是 ZMC 30 型全液壓側(cè)卸式裝煤機優(yōu)于其他類型裝煤機的主要特點 : 1) 可用鏟斗舉升重物 , 如支護用的金屬支架、碹胎。 5) 作業(yè)安全 , 可顯著減少在危險區(qū)內(nèi)的裝載作業(yè) , 搬動物料時間。 (3) 噴霧灑水 , 該機在裝卸時 , 沒有隨機配套的噴霧灑水防塵設(shè)施 , 目前只能人工沖洗
點擊復(fù)制文檔內(nèi)容
畢業(yè)設(shè)計相關(guān)推薦
文庫吧 www.dybbs8.com
備案圖鄂ICP備17016276號-1