外文翻译--粉粒物料运输车罐体设计

附 录 附录 A（英文文献原文） Unloading of bulk cement tank car gas tank design Abstract: This article discusses the gas tank car unloading of bulk cement to determine the shape of the tank structure, fluidized bed design, introduced the tank volume and load calculation. I. Introduction Gas tank car unloading of bulk cement transport and unloading of bulk cement to air a special car. It is the vehicle chassis in the shape of a cement plant in closed containers and accessories, and an air compressor, air compressor to power car engines. Cement compressed air to fluidized bed fluidized, under some pressure, cement transportation by pipeline to a certain height and horizontal distance of the concrete tower. Unloading of bulk cement trucks to gas can not only enhance the level of mechanization of loading and unloading of cement, save labor, reduce labor intensity and improve working conditions, and can reduce cement consumption, lower construction cost, to ensure the quality of cement. Practice shows that, compared with bagged cement handling, use of gas unloading of bulk cement truck, cargo handling efficiency can be increased by 15 times, and cement to reduce the losses of about 4%, with significant social and economic benefits in the current timber resource poor country, the energy shortage Next, with great practical significance. Unloading of bulk cement tank gas tank is an important part of the car, which fluidized bed, tank shape, the effective volume and the direct impact on the total volume of gas unloading of bulk cement truck, two important indicators of professional performance - unloading time and the residual rate, and the vast majority of parts for the processing tank parts, therefore, the tank design is a very important task. .Determine the shape of the tank structure Tanks are mainly vertical, horizontal, tilt, lifting style and type of trailer and semitrailer, etc. 1. All hanging and trailer type, suitable for large tonnage, does not apply to low tonnage terms from the transport efficiency, semi-trailer better than cycling, such as automobile remodeling of XX9160GSN Xinxiang City carrying gas from the discharge of bulk cement trailer , selected EQ140K type tractor, load capacity 10 tons and more, for large-tonnage trucks, cement semi-trailer is a direction. 2. Under the same discharge conditions, the vertical tank less than the expected horizontal tank left. Can not required because the vertical guide plate, chamber area of suitable transport is conducive to gas fluidization, the remaining rate is very low. Guide plate with horizontal tank, the tank corners and more material on the more left. However, the overall layout of vertical tank, the vehicle center of gravity high technical performance of the vehicle impact, it is difficult to overcome the shortcomings of vertical tank. 3. Fixed tilt. Discharge speed, remaining low, the higher center of gravity as to solve the problem, could offer a better type. Such as Inner Mongolia First Machinery Factory of ND2629-type bulk cement tanker is inclined horizontal tank, the discharge rate of up to 1.5 tons / min, the remaining rate of 0.2%, compared with JB3971, 1 gas unloading bulk cement tank car technology , on required much higher. But very few use this type. 4. Lift with pump. Moving tank in a horizontal position, lifting a certain point of time after discharge gas discharge, discharge faster, less material left. Such as special car factory in Kunshan Lifting KS5301GSN type bulk cement tanker with a pump, lifting angle of 20o. However, the addition of a hydraulic lifting mechanism, not only increasing the cost and also increased operating and maintenance costs. With very little. 5. Horizontal tank. Array layout in the vehicles total, do not affect the chassis of the main performance, which is its outstanding advantages, it is the domestic and international air unloading of bulk cement of a type commonly used vehicles. Horizontal tank including the cylinder and head. There are oval-shaped head head, dished the first two, an overall cylindrical tube, with the cylinder body and perfect circle platform portfolio, but also oblique circular cylindrical and rectangular platform portfolio. Kaolv to the tank arrangement of the internal needs of fluidized bed, the total volume in the same circumstances, the third form of Bi Xing Shi effective Rongji before the two big, fluidized bed and Bu Zhi Fang Bian, while easing the tank weight. We therefore propose, horizontal cylinder and the tank should be straight oblique type combination of round table body. The composition of the tank structure shown in Figure 1. Figure l Tank structure .The design of fluidized bed Determine the gas fluidized bed is designed for unloading of bulk cement truck key technology. Design goal is to improve the discharge efficiency, reduce tank dead zone, lower residual rate. Fluidized bed gasification bed by the inclined baffle components, end of support board assembly, composed of compression bars and screws. 1. Oblique baffle 2. Legislative panel 3. Bracket 4. Gasification board 5. Lateral 6. Countersunk head screws Figure 2 Oblique baffle component architecture 1. The choice of gasification board Gasification fluidized board is to ensure delivery of cement to meet the important parts, arrangement should be adopted when the block layout. At present, gasification panel are used in our soft, and commonly used are cotton canvas and polyester canvas. Breathable cotton canvas which is good, but easy to damp, sewage plug, so that permeability variation. As the cotton canvas and then rough surface, the remaining material will rise after discharge. Polyester, polyvinyl alcohol and other chemical fiber fabric is not easily wet, smooth etc, but the residual rate of electrostatic effects. 2. Oblique baffle component design and calculation Oblique baffle design, pay attention to consider reducing the dead zone of cement delivery process, consider the oblique baffle and tank wall welded airtight. To this end, we have designed to improve the structure of helical baffle component shown in Figure 2. Inside the tank, not only vertical oblique angled baffle. Horizontal plane is also tilted, so it and the tank complex internal cross-island line. Accurately calculate the oblique baffle size. Material can be cut off to facilitate the success of workers, making welding firm, to ensure airtight performance. First set up the design space equation and the oblique baffle tank space equation, application of computer calculated the intersection, which was inclined baffle size. Figure 3 shows the internal structure of the tank Figure 3 The internal structure of the tank .Tank volume and load calculation After investigation we found that most of the unloading of bulk cement truck gas tank is too large effective volume, that is, the quality of the tank to carry more than the rated load weight. This may be because the designer take into account the angle of repose as cement loading of cement in the jar can not be filled, it may meet the users desire to want to be able to multi-loading, but there are two important reasons: 1. Cement density greater than lt / m. JB3971 1 gas unloading of bulk cement tank car technology specified； tanks effective volume, in order to cement density lt / m. Calculated: V = G r After our testing, cement density of 1.28t / m, so by lt / m. To calculate the effective volume of exposure on the big difference, it easy to overload. For example, the design of a car containing quality 10t, most manufacturers will be effective volume of the tank is designed to l1.5m, Akira car drivers before and after using the method will be filled with cement, thus installed 14.72t, overload too much. 2. The lack of precise calculation of the effective volume As the complexity of the internal structure of the tank, in fact, estimate the volume of calculation is often simplified, the results of large deviations. 粉粒物料运输车罐体设计 附录 B（中文翻译） 摘要： 本文讨论了粉粒物料运输车罐体结构形状的确定，流态化床的设计，介绍了罐体容积与载重量的计算方法。 一、概述 气卸散装水泥罐式汽车是运输并能气卸散装水泥的专用汽车。它是在定型汽车底盘上装置一个水泥密封容器及附件，和一个空气压缩机，空压机以汽车发动机为动力。压缩空气使流态化床上的水泥流态化，在一定压力下，通过管道将水泥输送到一定高度和水平距离的水泥塔内。 使用气卸散装水泥车不仅可以提 高水泥装卸的机械化水平，节约劳动力，减轻劳动强度，改善工作条件，而且可以减少水泥损耗，降低施工成本，保证水泥质量。实践证明，与袋装水泥搬运相比，使用气卸散装水泥车，装卸效率可提高15 倍以上，水泥损失减少约 4% ，具有明显的社会经济效益在目前我国木材资源贫乏，能源紧张的情况下，有着十分重要的现实意义。 罐体是气卸散装水泥罐式汽车的重要部分，其中流态化床、罐体形状、有效容积和总容积等直接影响着气卸散装水泥车的两个重要专业性能指标 卸料时间和剩余率，而且罐体的绝大部分部件为加工件，因此，罐体设计是 一 项非常重要的 工作。 二、罐体结构形状的确定 罐体主要有立式、卧式、倾斜式、举升式及全挂和半挂等型式 1全挂式和半挂式，适用于大吨位，不适用于中低吨位，从运输效率来讲，半挂车要比单车好，如新乡市汽车改装厂的 XX9160GSN 自承载式气卸散装水泥半挂车，选用 EQ140K 型牵引车，载重量 10吨多，对于大吨位车，水泥半挂车是个方向。 2在同等卸料条件下，立式罐比卧式罐剩料少。因为立式罐不需要导料板，气室面积适宜，有利于气流态化输送，剩余率很低。卧式罐设有导料板，罐内死角多，剩料就多。但是立式罐在总体布置上，整车重心偏高， 对整车技术性能有影响，这是立式罐难以克服的缺点。 3固定倾斜式。卸料速度快，剩余率低，如能解决重心较高的问题，倒是一种比较好的型式。如内蒙古第一机械制造厂的 ND2629型散装水泥罐车就是斜 卧式罐体，其卸料速度达 1 5 吨分钟，剩余率为 0 2%，比 JB3971、 1“气卸散装水泥罐式汽车技术条件”上要求高出许多。但目前采用这种型式的很少。 4举升带泵式。行驶时罐体处于水平位置，卸料时举升一定角度后气卸，卸料快，剩料少。如昆山专用汽车制造厂的 KS5301GSN 型举升式带泵散装水泥罐车，举升角 20o。，但由于增 加了一套液压举升机构，既增加了成本，也增加了营运、维修费用。采用很少。 5卧式罐。在整车的总阵布置中，不影响底盘的主要性能，这是其突出的优点，它是目前国内外气卸散装水泥汽车普遍采用的一种型式。 卧式罐包括筒体和封头。封头主要有椭圆形封头，碟形封头两种，筒体有整体圆柱体的，有由圆柱体和正圆台体组合的，也有圆柱体和直角斜圆台组合的。考