振动磨机技术研究的新进展.pdf

第3 3 卷 2 0 0 5 年第7 期 25 Mining In overseasUSD 39.48 per annumAnnual postage Sea mail 18.10;Air mail 54.30 Printed in Luoyang, China in May 2005 M ining Processing Equipment MPE is a large state level applied technology periodical pulished in public at home and abroad, approved by the Ministry of National Science Technology and reported to National News Publication Burea for registration. Her sponsor is Luoyang Mining Machinery Engineering Design Institute which is an administration in mining and processing equipment trade of China. MPE is a major ination source and a connecting tie which is stable, reliable and unseparate, serving for management, design, manufacture and operation departments of the trade. Also she is a core journal in Chinese on Mineral engineering circle approved by the state. A Monthly Publication Cited or Indd by Decades of Other Journals or Index Libraries MPE CONTENTS No. 07Jul. lssue2005,Volume 33,Serial No.343 SELECTED Crushers Grinders Study to Effective Crushing Room of Double-Cavity Jaw Crusher.......................... .............................................................................................MU FuSheng et al.6-8 Strength of crushing force and its distribution in crushing room are important basis for designing double-cavity jaw crusher. The paper finds out variation rule of moving jaws velocity instantaneous center by analysis to motion of mechanism, expounds motion status of jaw board, and offers concept of effective crushing room and discloses variation rule of crushing force 【Descriptors】 Double-cavity jaw crusher Velocity instantaneous center Efficient crushing room Application and Development of Antogenous Grinding Technique in Our Country.. ........................................................................................REN ChunHong et al. 8-9 The paper introduces antogenous grinding about its definition and structural characteristic, gives detailed comparison to advantage and disadvantage of dry antogenous grinding and wet one, and expounds application and developing trend of antogenous grinding technique in our country. 【Descriptors】Antogenous grinding Dry antogenous grinding Wet antogenous grinding Study to Laminate Crushing Model and Its Crushing Characteristic........................ ........................................................................................GUO NianQin et al.10-12 Aiming at crushing cavity, the paper establishes laminate crushing three-dimension model and finite element model for loose rock, makes out occurring condition for laminate crushing and design parameter of relevant crusher, and discloses inner variation rule of loose rock laminate crushing stress by finite element COSMOS/M calculation and analysis. Model is verified by test, which founds theoretical basis for developing laminating crushers. 【Descriptors】Laminate crushing Three-dimension model finite element analysis Kinetic Model for Vibration Cone Crusher..................ZHAO YueJing et al.13-15 Vibration cone crusher is optimal big scale equipment for ultra-fine crushing, kinetic analysis is to be made to guarantee stable operation and optimal perance. The paper simplifies to its kinetic model to establish kinetic equation with 12 freedoms for vibration cone crusher and its status equation by language equation and Maple. 【Descriptors】Vibration cone crusher Ultra-fine crushing Kinetic model Language equation Study to Swing of Hammer Head in Active Hammer Crusher..................................... ............................................................................................CHEN XiaoYong16-17 Aiming at hammer head of active hammer crusher, the paper analyses conditions that causing deflection of hammer based on motion and stress of hammer, and concludes mathematical expression. 【Descriptors】Hammer head Crusher deflection Study to Optimization for Working Condition Parameters of Crushers in Concentration Plant........................................................WANG XiangJiang17-19 The paper makes optimization study to parameter of working condition of crushers in concentration plant, which lead to reasonable matching of crushing parameter of each crusher. The purpose of study is to increase handling capacity of crusher in concentration plant so as to enhance economic efficiency of plant. 【Descriptors】 Concentration plant Crushing Optimization Reasonable Determination for Swing Stroke of Compound Pendulum Jaw Crusher....................................................................................LIAO YiYong19-21 Production capacity and unit power consumption are main perance index for measuring compound pendulum jaw crusher, swing stroke of moving jaw is the key parameter to determinate production capacity and unit power consumption. Through study to lots of test for horizontal stroke of various moving jaw in middle and small compound pendulum jaw crusher, the paper provides a kind of new equation for horizontal stroke. 【Descriptors】Compound pendulum jaw crusher Swing stroke Perance New Development of Study to Vibration Mill Technique.....PENG Wei et al.25-26 The paper offers concept of vibration mill with double rigid bodies. Through analytical calculation and test, it is found out that vibration milling energy is simultaneously transferred from cylinder wall to inner and from center to outer in the vibration mill with double rigid body, instead of just transferred from cylinder wall to center, which eliminate central dead zone in traditional vibration mill, so energy utilizing efficiency is increased and fineness is smaller, the most important of all, which establishes basis for big scale of vibration mill. 【Descriptors】Vibration mill Low-energy zone Vibration mill with double rigid body General Discussion to Vertical Shaft Impact Crusher with Steel Liner...................................................................XIN YaoQing27-28 The paper gives brief introduction to vertical shaft impact crusher about its working principle and developing trend, makes classification and comparison, and gives detailed discussion to how to determine main parameters of crusher. 【Descriptors】Vertical shaft impact crusher Working principle Perance and parameter Material Renovation for Dividing Board of Tube Mill.......................... ...............................................................ZHAO GuangYu et al.28-30 Employment perance and lifespan of dividing board of tube mill directly influence production capacity, efficiency and production cost of mill. Based on conclusion of many years experience and theory study, the paper makes technical renovation to material and manufacturing process of board to prolong lifespan from 5-7 months to current 13 months. 【Descriptors】Middle alloy Dividing board Tube mill Algorithm of Choice Function for Jaw Crusher.................................... ................................................................ZHANG XueXu et al.31-32 According to working principle of jaw crusher, the paper analyses process during which material is crushed in jaw crusher and selective crushing for material, puts forwards concept of crushing area, which lead to develop a kind of algorithm of choice function for material in jaw crusher, and example is made for further illustration. 【Descriptors】Jaw crusher Choice function Mathematical model Development of Cement Mill with High Perance.......................... ..................................................................ZHANG RiHua et al.33-34 Over-grinding is very serious in ordinary open circuit long mill triple bins, which lead to dispersing grain and wide range of particle size so that strength of cement is unable to bring into play under new standards. Through renovation for inner structure of mill, crushing efficiency of first bin and uniity of granularity are increased, over-grinding is improved, thus grinding capacity of mill is enhanced. 【Descriptors】 Mill Steel rod Dividing board Inner structure Study to Dynamic Model Building and Simulation for Constant Pressure Loading System of Mill........................................ ...............................................................ZHAO YunLong et al.35-37 The paper introduces a of loading constant pressure on plate roller mill with relief valve, establishes its simulation model, studies perance of system by simulation , finally draws some important conclusion. 【Descriptors】Hydraulic system Power bond graph Simulation Optimization Design to Overload Protection System of Cone Crusher ...............................................................HAN CunChang et al.37-38 Aiming at poor perance of safety protection and keep pressure, low automatic control level in overload protection system of cone crusher, the paper puts forward a new kind of overload protection system and introduces its working principle and characteristic. 【Descriptors】Cone crusher Hydraulic system Overload protection Vibration Crushing Technique and Its Kinetic Problem....................... .....................................................................HOU ShuJun et al.39-40 Vibration crushing is an optimal technique for ultra-fine crushing. The paper detailedly expounds development of vibration crushing technique and its kinetic problem, which establishes foundation for further development of vibration crushing technique and deep study to strong nonlinear vibration system. 【Descriptors】Kinetics Vibration crushing Loose coupling Strong nonlinear Separator Analysis to Experimental Modality for MN-1 Type Self-Synchronous VibrationScreen with Three Motors...ZHANG ChuanTao et al.44-45 The paper introduces MN-1 type self-synchronous vibration screen with three motors about its finite element analysis, testing program for modality, distribution for measuring point, choice for exciting point and test process. By modality experiment, the paper determine its structural parameter, makes out relevant modality parameters near exciting frequency of motor, which offers reference for further modification and optimization for structure. 【Descriptors】Analysis to modality Vibration screen Test Study to Algorithm of Improving Precision of Electronic Batching Controller................................................NING YongHai et al.46-47 Aiming at problems existing in electronic batching controller, the paper offers a kind of algorithm to improve precision of electronic batching controller. The algorithm forecasts time of closing valve by estimating on line the material-feeding speed during fast feeding and slow feeding stage, which lead to reduce metage error due to excessive weight. 【Descriptors】Batching controller Precision Feeding speed Forecast Control algorithm Study to Concentrating from Chromite in Certain Northwest Mine................................................................... ZHANG Ling48-51 The paper studies quality and washability of poor chromite ore in northwest certain mine, according to requirement for chromite concentrate, the paper suggest tabling separation after throw away tail and magnetic separation by equipment with big handling capacity, which lead to simplify operation and management and increase efficiency. 【Descriptors】Chromite mine Separation Separating efficiency Study and Analysis to Factors Affecting on Classifying Perance of Vortex Air Classifier..................................GUO LiJie et al.51-53 Based on classification mechanism, the paper analyses vortex air classifier about its main operation condition and key factors for structural design on classifying perance, and introduces latest advance on study. 【Descriptors】Vortex air classifier Classifying perance Affecting factor Development and Application of a Kind of Popular High Efficiency Demagnetizer.................................................HAO Chen et al.54-55 The paper introduces a kind of popular high efficiency demagnetizer about its working principle and application result, offers a kind of by which demagnetizing result can be quickly identified. The demagnetizer proved effective and economical, easy to operate and well demagnetized. 【Descriptors】Demagnetizer Attenuating oscillation Popularize Application of Multi-Frequency Vibration Screen in Dehydration for Coal Slime...................................CHENG XiangWen et al.55-57 The paper illustrates influence of material sort, granularity and mesh size to technical result of multi-frequency vibration screen, and uating for technical result is also introduced. 【Descriptors】 Multi-frequency vibration screen Dehydration Technical result Design for φ45002700 Non-Standard Stirring Cask...................... ..............................................................WANG HongJun et al.58-59 The paper introduces new type stirring cask and stirrer about their working principle, design for stirring system, calculation for power of stirrer shaft and reasonable choice for motor. The cask has excellent stirring result and energy-saving perance. 【Descriptors】Stirring cask Axial flow stirrer Stirring system Analysis to Static Strength of Body of Single-Path and Double-Path Vibration Screen........................................ZHU FuXian et al.61-62 According to structural characteristic of single-path and double-path vibration screen, the paper deduces calculation ula for bending moment, shearing force and bending of structure of screen body, it also makes calculation and analysis to static strength of single-path and double-path vibration screen with parameters of ZKB2460 linear vibration screen. 【Descriptors】Vibration screen Static strength Double-path Electrostatic Deashing Technique for Pitch Smoke Emitted from Carbon Roaster.................................................SUN BingHai63-64 Aiming at low density and high temperature pitch smoke with dust emitted from carbon roaster, dry and wet pre-handling and then electrostatic depurating are used to eliminate bigger size dust particle, lower temperature of smoke and reduce resistance firstly, then depurate pitch smoke with static electricity, which has advantage of automatic control, saving energy with high deashing efficiency. 【Descriptors】 Pitch smoke Tube honeycomb Constant flow power Electrostatic deashing