外文翻译立磨机

1、OK Vertical roller mill Main features: OK vertical ro ller mills use 30%-50% less energy than ballmill systems. Simp le layout and fewer machines in the mill c ircuit high run-factor and low maintenance costs. Excellent drying capab ility when grinding blas t furnace s lag or blended cements with we

2、t components . Roller and table profile improve operating stab ility and reliab ility. Consistent cement quality with easy to adjust quality parameter Special design features for iron removal during slag grind ing minimize wear Optimal wear-protection all internal surfaces Space-saving des ign reduc

3、es civil construction costs Flexib ility to operate with two or four ro llers guarantees long term availab ility. Application advantages Proven commercially, the OK millis the premier ro ller mill for finish grinding of portland cement, slag and blended cemtrents. With a 30%-45% reduction in the ene

4、rgy requirements for cement grind ing and 40%-50% for s lag as com-pared with trad itional ball mill operations, the OK mill can contribute significantly to your profitab ility and competitiveness. The design combines the drying, grinding and separation processes into just one unit, thus simplifying

5、 the plant lay-out. A low no ise level makes outdoor installatio n feas ible, substantially reduc ing civil construction costs and improving the working environment. Because of its highly effective drying performance, the OKmill is a natural choice for grind ing blended cements with one or more wet

6、components Design advantages The OK mill uses a hydro-pneumatic system to press its grinding rollers against the material bed on the roatting grinding tab le. The grooved roller profile has two grinding zones, an inner and outer. This creates a high and concentrated grind ing pressure on the outer p

7、ath, allowinair to escape into the grooved centre. The inner path serves to prepare the grinding bed, by compressing the feedmaterial as it moves under the ro llers nto the high pressure grind ing zone. Segmented roller wear parts are made of the hardest possib le material without ris k of cracking

8、and are very well suited or hard fac ing. Re-positioning of rollers is possible for evening out wear. These features ensure maximum longevity. Ope rating advantages The rollers are in a lifted position when the mill is started, ensuring troub le-free start-up . This eliminates the need for an auxili

9、ary drive. A control system monitors the machinery and fac ilitates operation. Mill arrangeme nt This schematic illustrates a typical grinding installatio n. The arrangement is very simp le and the operatio n is correspondingly flexib le and reliab le. To maintain the appropriate temperature in the

10、mill c ircuit. For example to ensure adequate dehydration of the gypsum when grind ing cement-the layout is prepared with provis ions for rec irculation of hot exit gas to the mill inlet. In case the mill feed is wet s lag or inc ludes a s ignificant portion of wet additives, addition heat must be p

11、rovided, for inentance form a heat generator. Otherwise, if the mill feed is very hot, the mill exit temperature contro ls a damper for cold air intake. Nozzle ring bypass system For slag grind ing, a specially des igned nozzle ring bypass allow the iron partic les to segregate through nozzles witho

12、ut airflow and subsequently be removed by a magnetic separator to minimise wear of the mill internals. One mill, many products The OK mill effic iently grinds blended cements, with a wide range of add itives such as slag puzzo lana, limestone and fly ash. Its versatility is demonstrated by the abili

13、ty to switch bet ween a wide variety of mixes, and to vary the partic le size to meet ind ividual needs. Particle size distribution Example of ad justment of partic le sized istribution when grind ing to the sameBlaine surface. The required steepness of the partic le size d istributio n curve is att

14、ained by sdjustment of the separatorrotor speed, the mill airflo w rate and the grind ing pressure, in comb ination with the appropriate height of the dam ring. Optimisation of ope ration Adjustment of mill airflow and grinding pressure for optimis ation of the operatinon, includ ing adjustment of t

15、he partic le size d istributio n, can be made immediately. Ad justment of the dam ring, however, requires a mill stop, but only for a few hours. Switching between different types of products, for example from portland cement to slag, only requires easily made operating adjustments. Ad justment of th

16、e dam ring is not required. However, if the mill is to operate for a long time with one specific product only it may be exped ient to adjust the dam ring to opt imise the Residue(%)mill for operation with this specific product. Wear line rs The wear liners of the grind ing table and the ro llers are

17、 of the segmented type and are therefore easy to rep lace when worn out. For mills grind ing very abrasiva materallike slag, hardfaceing is an interedting and viab le means of achievving a highavailab ility of the grind ing system, optimis ing the grinding process and saving refurbishment costs. Har

18、dfac ing is an economical alternative to changing wear parts and is very Suitable for the high chrome cast iron grind ing parts used in the OK mill. Being of the segmented type thewearliners can be hardfaced numerous times throughout their life. 立式辊磨机 主 要特 点 ： 立式辊磨机比系统较简单的球磨机能够多利用 30%-50% 的能 源。 立 式磨

19、 电 路的 简 单的 规 划和 较 少 的机 器确 保高流 动因 数和低 的维护 费用。 当粉 磨高炉 熔渣 或用湿 的元素 混合水 时， 具有优 秀 的干 燥能力 。 轧辊 及辊道 剖面 改善运 转稳定 性和可 靠性。 方便 调 整一 致的 水 泥性 质 质量 参 数。 特别的设计功能为在磨的熔渣期间将铁耗减到最 少。 在所有 内部 表面有 着优秀 的磨耗 保护装 置。 节省 空 间设 计减 少 工厂 建 筑成 本 。 灵活 的操作 保证 二个或 四个辊 的长期 有效性 。 应用好处 商业 上证明 ，好 的立式 磨是 最后加 工的第 一的辊 轧 机卜 特兰水 泥的 轮磨，熔渣 和混合 水泥

20、。用 30%-45% 减 少能 量 需求 的营 业 额为 水 泥磨 矿 渣作 为 比较 ，与 传 统球 磨机 营运组 成， 立式辊 磨机可 以到来 很好 的盈利 。设计 结合 了干燥 、粉 磨和分 离过程 作为一 个单 元，因 此减少 了的 开 支。 低噪 音 水平 使 室外 安 装可 行， 大 大降 低 工厂 建筑 费用， 改善 工作环 境。 由于 其 高度 有效 的 干燥 性 能， 立式 辊 磨机 是 一种 自 然选 择 一个 或一 个 以上 的 湿组 件 研磨 混 合材 。 设 计优 势 立式辊磨机使用液压机启动系统坚持它的磨碎滚 筒针 对 物质 的床 在 轮流 磨 盘。 槽滚 筒剖面

21、有而 磨区， 以内部 和外部 。产 生一高 的 而且集中地外部路径的磨辊的压力，物料逃进沟槽中 心。 内路 径服务 准备砂 轮清理 台， 由压缩 给料物 质由于 它举 动下滚 筒不 高压研 磨区。 被分割的滚轮磨耗零配件利用最难的合理的材料 做成 。没 有 风险 裂 纹而 且 非常 很好 地 被适 合 或溶 接 硬面 法。关于 - 轧 辊 的定 位出 自 合理 的 磨耗 。这 些 特征 最 大的 限度 的保证 了利 用率。 经 营优 势 无障 碍启动辊 磨机时， 滚轮被举 起。这就 不需要一 个 辅助的驱 动器。一 种控制 系统监 控的机 械和便于 操作。 辊 磨机 的布置 这也 就说明 了一 个典型 的磨削 原理的 安装。 这个 计 划是 很 简单 的， 而 这样 的 布置 是 相应 地 灵活 和可 靠 的。 保持 适当的 磨辊 机电路 ，例如 ，确 保适当 的脱水 石膏当 磨水 泥-布局 准 备同 规 定的 热 出口