查询词典 coal separator

At last,a preliminary visual 3D model system for coal seam is established based on coal seem 3D model and using OpenGL and Vc~6.0.Currently a part of research results has been applied to Mine Survey Geological Information System(MSGIS3.0),including constrained triangulation of coal bed suface, coal bed scaleboard contours with fault,part encrypt of contours,excellent turn of triangle,space encrypt,any direction profile of coal bed and so on.

论文的部分研究成果已经应用于煤矿地质测量空间信息系统MSGIS3.0中，主要表现为通过煤层底板表面的约束三角剖分，实现了煤层底板等高线的断层处理、等高线的局部加密、三角形优化、空间插值、任意切割煤层剖面等方面。

The main factors of occurrence and development of coal self-ignition is the quantity of heat that is produced by coal spontaneously. Therefore, studying the coal exothermic property is the precondition of mastering the process of coal self-ignition, searching the law for it and developing coal seam fire prediction.

煤自燃的发生和发展最关键因素在于煤自发地产生热量，因此研究自燃煤的放热性是认识煤自燃过程、寻找自燃规律、发展预测预报技术的基础。

Technology of coal of gush of blast furnace double gun solves blast furnace coal effectively to compare current velocity of the coal fines when rising fast, coal fines and sirocco mix inadequate, cause efficiency of combustion of blast furnace coal fines this technique still can reduce low problem; effectively remove dust the carbolic content in ash, energy-saving to the enterprise decrease platoon and clean production to having active sense.

高炉双枪喷煤技术能有效地解决高炉煤比提高时煤粉流速快，煤粉和热风混合不充分，致使高炉煤粉燃烧效率低等新问题；此项技术还能有效降低除尘灰中的碳含量，对企业节能减排和清洁生产有着积极意义。

This paper introduced the application of the coal resource filler after crushing and surface treatment in rubber,which included high sulfur coal,coal gangue stone,fly ash and coal cinder and so on,and the research progress about carbon and silica which were produced by the coal resource wastes.

介绍了高硫煤、煤矸石、粉煤灰和石煤渣等煤炭资源类填充剂经粉碎、表面改性后在橡胶中的应用，以及制备炭黑、白炭黑后应用于橡胶中的进展。

In this thesis, by the means of calefactive oxidation test of coal samples, the characteristics of different samples spontaneous combustion are analyzed; the infrared spectrum is assimilated to review the rule that coal function corps change in the process of coal low-temperature oxidation ; by the means of thermal analysis by differential scanning calorimeter, thermogravimeter, the kinetic function of coal low-temperature oxidation in spontaneous combustion process are analyzed , depend on the device, the mathematical model of coal spontaneous combustion is developed, the model are dealt with, Finally, the temperature field and the velocity field with velocity of the entry flow is got.

论文通过煤的低温氧化和自燃过程，实验研究了煤的低温氧化气体产物特征和变化规律，研究得出了煤的低温氧化过程中气体生成量与氧气消耗量与煤温之间的指数关系式；在煤的低温自热氧化过程中，对煤的官能团等化学结构的变化研究，揭示了煤炭低温自热氧化化学基团变化规律；采用非等温TG和DSC法研究了烟煤低温氧化动力学，得出了煤低温氧化分布活化能及煤低温氧化机理函数的变化规律；建立了煤低温氧化自热数学模型，并对该模型进行数值解算，可得煤样的温度场与速度场随入口风量变化情况。

The results show that the polymer determines the electricity conducting of coal filled polymer composites. The coal filled PP composites is an insulating material, and be independent of coal type, its direct current resistivity is above 10〓Ω·cm. The resistivity drops with the content of coal when using anthracite, but it is also above 10〓Ω·cm, and the surface modification of coal, especially alkylated, resumes the insulance of composites.

X射线衍射测试表明即使在高变质程度下煤中的石墨晶区含量仍较低，煤填充聚合物复合材料电性能主要由基体材料性能决定，通过动电容静电计对煤填充聚丙烯复合材料直流电导性研究表明，煤填充聚丙烯复合材料是绝缘材料，其绝缘电阻在10〓Ω·cm以上，在高含量情况下，仍能保持良好的绝缘性，而与煤种无关。

Mineral fuel is the primary energy source in the world today, thereinto coal resource holds in store more than 75 percent in the total energy source. During coal's utilized, nocuousness matter expels into environment through all kings of method and works serious environmental pollution. Desulphurization has become one of primary objects of cleaning coal. At present, there are some primary problems of removing sulfur from coal. It is the size of coal is too small, the time of removing sulfur is too long, the technology is too complicated and the investment is much expensive etal.

中文题名燃煤微生物预处理浮选脱硫的试验研究副题名外文题名 Study on microbial pretreatment and floatation desulphurization in coal 论文作者周志付导师王英敏魏德洲教授学科专业安全技术及工程研究领域\研究方向学位级别博士学位授予单位东北大学学位授予日期2002 论文页码总数99页关键词燃煤微生物预处理－浮选脱硫煤炭脱硫馆藏号BSLW /2003 /X701 /2 矿物燃料是当今世界的主要能源，其中煤炭资源蕴藏量占总能源的75％以上，在煤的利用过程中，有害物质以各种方式排入周围环境，造成了严重的环境污染，因此脱硫已成为洁净煤技术的主要目标之一，而目前煤中硫的脱除存在的主要问题是：煤粉太细，脱硫时间长、技术复杂，投入费用太高等。

Under the base of investigation and research on natural radioactive nuclein in coal of Yili area,combining with the distributing characteristic and law of radioactive nuclein in coal of area and residents' customer of using coal in Yili area,the article raises decrement,resources,harmless and prevention and control measure of whole course managing rule with having a definite object in view and put foward a feasible plan and way for economie developmant of Yili area,resonable development and utilization of coal resources,preventing from pollution because of mining and utilizing coal and further protecting people's health.

文摘：在对伊犁地区煤中天然放射性核素调查研究的基础上，结合伊犁地区煤中放射性核素分布的特点、规律以及伊犁地区居民的用煤习惯，有的放矢的提出了减量化、资源化、无害化以及全过程管理原则的防治措施，为伊犁地区的经济发展，煤炭资源的合理开发和利用，防止因煤炭的开采利用而造成的污染，建设性的提出了切实可行的方案和途径。

The coal filled PP composites have higher fracture toughness when the content of coal is high (When the content of coal is 50wt%, the K〓 of composites remains 50% of PP). The F-C alkylation has grafted long chain alkyl on the surface of coal, and then toughens the coal/PP composites.

超细煤粉填充聚丙烯复合材料平面断裂韧性的系统测试以及微观结构的观测表明，煤填充聚丙烯复合材料在高煤含量情况下仍具备一定的韧性（当煤含量达50wt％时，应力强度因子K〓仍能保持纯聚丙烯的50％左右）；烷基化改性在煤样表面接枝了长链的烷基，使粉煤/聚丙烯复合材料平面断裂韧性普遍提高。

Co-firing characteristics of corn stalk and stone coal in different proportion were investigated by thermal gravimetric analysis. The results showed that corn stalk can improve the ignition and combustion of stone coal. The agglomeration experiments on corn stalk were made in a bench-scale bubbling fluidized bed with quartz sand as bed material and stone coal ash as additive. The results indicate that stone coal ash can inhibit agglomeration of bed material particles at temperature of 900℃. Agglomerate of blends was analyzed by means of scanning electron microscopy, energy-dispersive X-ray, and the bed materials were analyzed by means of X-ray fluorescence. Analysis showed that aluminum element and iron element in stone coal ash can react with alkali compounds and eutectics with low melting point, form a covering layer with high melting point on the surface of biomass and quart sand particles, thus inhibit the forming and transfer of low melting compounds.

以玉米秸秆与石煤按不同比例组成的混合物为研究对象，在TG-DTG热分析仪上进行了燃烧特性分析，结果表明玉米秸秆有利于石煤的着火和稳定燃烧，对石煤有一定的助燃作用；在小型鼓泡流化床实验装置上，以石英砂为床料、石煤灰为添加剂，进行了玉米秸秆成型燃料流化床燃烧的床料黏结实验，结果表明：石煤灰能够在生物质流态化燃烧过程中有效地抑制流化床床料黏结现象的发生；通过对实验中形成的结团进行扫描电子显微镜X射线能谱(scanning electron microscopy/Energy-dispersive X-ray- SEM/EDX)，对床料进行X射线荧光光谱(X-ray fluorescence，XRF)分析，结果表明石煤灰中的Al和Fe能够与生物质灰中的碱金属化合物以及低熔点共熔物发生化学反应生成高熔点物质，并且覆盖在生物质碳颗粒与石英砂颗粒表面形成隔绝层，从而阻止低熔点物质的生成与迁移。

The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。