浅谈磨机增产的技术措施

1目前水泥及矿渣粉磨技术的现状 我国水泥企业除部分新型干法生产线外,在粉磨技术方面还需不断完善,主要体现在： （1）φ1．83×6．4（7．0m）、φ2．2×6．5（7．5m）、φ2．4×10（13m）、φ2．6×11（13m）、φ3．0×11（13m）、φ3．2×12（13m）等常用磨机其粉磨效率比大型磨机低。     

辊压机跳停原因分析及对策

我公司一条5000t/d新型干法水泥生产线,水泥粉磨采用两套φ1．7×1．1m辊压机与φ4．2×13m球磨机组成的联合粉磨系统,P·O42．5设计能力为165t／h,P·C32．5设计能力为175t/h。     

同转窑托轮轴承漏油的原因分析和处理办法

0前言 福建水泥有限公司#7窑为2 500t/d熟料生产线,该生产线于2005年7月28日点火投入生产,配套回转窑规格为φ4m×60m.     

预热器窑增产节能改造

近年来,陕西赛特机械设备有限公司采用顶分解技术先后对陕西社会水泥有限责任公司φ2.7m×42m五级预热器窑、陕西礼泉秦岭水泥有限责任公司φ12.5m×45m立筒预热器窑等生产线进行了技术改造,在陕西勉县温泉水泥有限责任公司φ2.8m×45m回转窑新生产线建设中亦采用了预分解技术。实践证明,对原日产熟料200t/d左右的“泾阳     

φ4．6m×（9．5＋3.5）m中卸磨的达标生产实践

山东联合王晁水泥有限公司φ4．6m×（9．5＋3.5）m中卸磨生料制备系统由南京水泥工业研究院设计,该生产线2005年4月投产,2006年实现达标达产,磨机的台时产量平均达到210t／h,超设计台时产量30t／h。     

煤磨系统爆炸的原因及预防

我公司1 000t／d预分解窑生产线于2001年11月建成投产,相配套的φ2．4m×(4．5 2)m风扫煤磨系统在投产初期曾发生数次爆炸事故,严重影响了生产的安全进行,为此,对煤磨系统进行了改造,使煤粉系统爆炸得到了解决。     

油坑建材5000t/d生产线窑系统调试总结

1 基本概况 我公司5000t／d熟料生产线采用了双系列五级高效低压损旋风预热器＋第三代11TF型分解炉系统;其回转窑规格为中4．8m×72m,斜度3．5％,转速0．4～4．5r／min,电机功率710kW;另采用了TC-12108篦冷机（有效面积：128．6m2）和TCNB—S型双旋流燃烧器。     

水泥磨磨头冒灰和吐料及低产的原因及处理

1 水泥磨生产线概况介绍 新疆天业集团公司下属天能水泥公司有二条4HFCGl60—140辊压机＋φ4．2m×13m闭路磨的水泥粉磨生产线,设计产量为160t／h。其中2010年10月#1线现投产,2011年4月#2线投产,     

6500t/d熟料生产线提产措施

<正>1主机装备及生产现状某公司6 500t/d熟料生产线,窑尾系统由5级旋风筒双系列预热器,采用4-2-2-2-2布置,C_5级旋风筒带有鹅颈管和分解炉组成,分解炉规格8.64m×42.8m,设计能力8 000t/d。回转窑规格φ5.2m×78m,支座数3档,斜度     

φ3.2m×7m生料磨的改造

我厂回转窑生产线原料车间1台φ3.2m×7m生料磨,配φ5m离心式选粉机.为了保证向回转窑供料,我们对原料磨系统进行了改造.     

Detonation of a Column of a Chemically Active Bubbly Medium in a Liquid

The problem of a detonation wave propagating in a cylindrical column of a chemically active bubbly medium screened by a liquid from the tube walls is formulated and numerically solved within the framework of the Iordanskii–Kogarko two-phase model with allowance for energy dissipation due to acoustic radiation of bubbles. The wave structure of the reaction zone and the detonation velocity of the bubbly medium column are calculated. It is found that the self-sustaining wave can propagate with a velocity greater than the velocity of one-dimensional bubble detonation by a factor of 1.5–2.5.     

Extraction into a flow of a fluid with a velocity gradient

Unsteady extraction from a system of semi-infinite capillaries to the flow of a fluid with a linear velocity gradient is studied. An assumption that the diffusion in the flow is a quasi-steady-state process is taken to obtain a linear equation for the local mass flux from the pore space, which involves fractional derivatives with respect to time and flow coordinate. Limiting solutions for the total diffusion flux at small and large times that cover the entire time interval are found.     

Separation of mixtures and distribution of a liquid on a structured packing in a large-scale model of a distillation column

A large-scale experimental setup is designed to study the hydrodynamic parameters and the mass-transfer efficiency in a countercurrent flow of mixtures of Freon R21 and Freon R114 on structured packings in a column 0.9 m in diameter. The study deals with the local and integral parameters of separation of the mixture, the degrees of nonuniformity of the flow rates and concentration distributions of the liquid and vapor phases over a cross section and on the column wall, and the pressure difference while varying the number of packing layers and their rotation angle. The mass-transfer processes while independently varying the liquid and vapor flow rates over wide ranges are also investigated. Experimental data are presented to illustrate the effect of the operating parameters on the height of an equivalent theoretical plate, the relative pressure difference, and the distributions of the local parameters of the flows.     

Interaction of a Shock Wave with a Cloud of Aluminum Particles in a Channel

Interaction of an incident shock wave (with a rectangular or triangular profile behind its front) with a finite-width semi-infinite cloud of aluminum particles located in a channel along the plane of symmetry is numerically simulated. Shock-wave interaction with the leading edge of the cloud results in the formation of a vortex that leads to cloud dispersion. Reflection of the curved shock wave from the plane of symmetry may be regular or may include the formation of the Mach stem. If the cloud is loaded by a rather strong shock wave, a detonation wave is formed in the cloud. In this case, the flow is periodic, which is caused by passing of transverse waves and their reflection from the walls.     

Reflection of a shock wave from a rigid wall in a mixture of a liquid metal and solid particles

The problem of reflection of shock waves and expansion waves from a rigid wall in a mixture of liquid iron and small molybdenum crystals is considered. The study is performed within the framework of equilibrium and nonequilibrium approximations of mechanics of heterogeneous media with different pressures of the components. The mathematical model is verified by fitting the dependence of the equilibrium-frozen velocity of sound on the initial pressure in the mixture with available experimental data. In the equilibrium approach, the dependence of the type of the reflected wave on the type of the incident wave is determined. Direct numerical calculations within the framework of the nonequilibrium model of mechanics of heterogeneous media confirmed the validity of the reflection chart obtained. The possibility of significant compacting of molybdenum particles in reflected waves is revealed. Translated fromFizika Goreniya i Vzryva, Vol. 36, No. 4, pp. 97–107, July–August, 2000. This work was performed within the framework of the Integration Project No. 97-24 of the Siberian Division of the Russian Academy of Sciences.     

Transient Outflow of a Liquid from a System of Holes in a Horizontal Tube

The transient outflow of a liquid from a perforated horizontal tube as a result of abruptly applied constant pressure is studied theoretically and experimentally. Equations and a computer program are developed for estimating the parameters of such transient processes. Retardation of the liquid outflow is observed, and its mechanism is discussed.