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- Analysis and improvement on welding failure of cutter base for coal cutting drum 滚筒齿座开焊原因分析及改进
- Do not cut drum with flame or ARC. 禁止用火、电弧来烧开罐。
- The paper introduces the cutting drum intellectualized CAD software based on the research of the picks-lacing. 通过对截齿排列的研究,介绍了滚筒智能优化CAD软件中切削图的绘制。
- cutting drum of coal drum shearer 采煤机滚筒
- The cutting drum structrue edsign,in which checkerboard or mixed bits range is widely used in the world,should adopt uneven vanes structure. 据此,对国内外广泛采用的棋盘式或混合式截齿排列的滚筒结构设计应用非均布叶片结构。
- To make shaft coal cutting planning is a multi nodal decision making course for it's intricacy of influencing factor. 矿井采煤计划编制影响因素复杂,是一个多环节的综合决策过程。
- Mine rational drivage rate is a very important role in banlancing coal cutting and driving. 合理掘进率对矿井采掘平衡具有重要的作用。
- THERE WAS HEAVY DUST BUILDUP IN THE CHAMBER OF CUTTING DRUM IN SQ35 TOBACCO CUTTER, BECAUSE OF IT'S UNSATISFACTORY DUSTPROOF SYSTEM AND THE PRESSURE DIFFERENCE BETWEEN INSIDE AND OUTSIDE OF THE DRUM. SQ35切丝机在切丝过程中存在刀辊内腔积尘较多的问题,主要是由于刀辊体的防尘系统密封不好以及刀辊内腔与外界存在压差。
- For coring crowns,electric coal drill bits,coal cutting picks,cone drill bits and scraping knife bitts,used in geological prospecting,coal mining and oil well boring. 适用于地质勘探、取心钻头、电煤钻、截煤机齿、石油牙轮钻和刮刀钻头。
- The basic thought and design schem of the memory control system to the height of cutting drum of shearer is elaborated,which offers a refrence to the design of automatic control system of shearer. 论述了采煤机滚筒高度记忆控制的基本思想,提出了设计方案,对采煤机自动控制系统的设计具有一定参考意义。
- When the Rotary Cutting Drum for mining Cobalt-rich Crust is working on the fluctuant microtopography of sea floor, it's necessary to determine the cutting depth according to the mining requirement. 用滚筒式采矿头在起伏不定的微地形上切削海底富钴结壳时,需按开采要求确定其切削厚度。
- When the Rotary Cutting Drum for mining Cobalt-rich Crust is working on the fluctuant Microtopography,how to control the cutting depth and the cutting pose is a very crucial problem. 滚筒式采矿头在起伏不定的微地形上切削富钴结壳,本文就滚筒的切削深度及姿态问题或称滚筒最佳切削位姿问题建立了数字模型,并给出了数学上原则解答与简化解答。
- When the Rotary Cutting Drum for mining Cobalt rich Crust is working on the fluctuant microtopography of sea floor, its necessary to determine the cutting depth according to the mining requirement. 摘要用滚筒式采矿头在起伏不定的微地形上切削海底富结壳时需按开采妥求确定其切削厚度。
- An improved mode of coal cutting is recommended aiming at the specifical status of surface collapse of coal field in Yanzhou city, and several control policies on restoration and reclamation of collapsing land are also put forward. 针对兖州矿区的具体塌陷状况提出了改进采煤方式、对塌陷土地进行恢复和复垦等几点防治措施。
- The developing direction of electrical control for domestic tunneller is raised with the analysis of the characteristics of the electrical control for continuous coal cutting made in USA. 通过对连续采煤机电控特点的分析,提出国产掘进机电控的发展方向。
- long and short knife interpenetration coal cutting “长”、“短”刀穿插割煤
- coal mining; coal extraction; coal cutting 采煤
- We need to replenish our stocks of coal. 我们需要再次补充煤的储备。
- Application: For delivery of water, mineral oil or waterbased hydraulic oil in the hydraulic system of hydraulic frames, combined coal cuttings in coal mine and constrction work macinery, etc. 用途:适用于煤矿液压支架、综合采煤机组等液压系统输送矿物油、水基液压油或水。推荐压力适用于脉冲少的工作条件。
- She piled on more coal before the fire go out. 在火熄灭之前她又加上些煤。