使用方法
使用方法：随着颗粒变细，去除水的阻力增加。重力脱水不能再使用，必须使用压力。通过在固体滤饼上产生压差Dp，可以通过以下方式去除液体：可以在管式压力机上进行清洗。这被称为置换洗涤，其中液体通过液压迫使通过滤饼。对于立式板式压力过滤器，使用压缩或压缩与空气直通的组合。对于真空过滤器，使用通过吹气的空气。压缩：“通过压缩脱水意味着通过压缩滤饼结构去除滤饼中的液体”。通过吹风“通过吹风脱水意味着用空气替换蛋糕中的水”。对于管式压力机，使用压缩或压缩和空气净化的组合。同样的方法，管式压滤机管式压榨机是一种设计为圆柱形的膜式压滤器，能够在高达100巴的过滤压力下运行。使用这些高压能够实现液相和固相的更高程度的分离。管式压榨机适用于以下应用：•工艺要求非常低的滤饼水分，例如冶炼厂•滤饼可处理性非常关键。e、 g.地下泥浆•滤液是有价值的产品•滤饼运输成本很高•滤饼将被处理到垃圾填埋场。操作原理过滤在两个同心圆筒之间进行。外筒是外壳，内筒是蜡烛。将工艺浆液泵入过滤介质和气囊之间的环形空间。然后，将液压流体（水）泵入气囊和套管之间，将泥浆置于压力下，并进行过滤。过滤完成后，使用真空将液压流体从管单元中抽出，直到气囊在外壳上膨胀。然后将蜡烛降低到排放位置，并在蜡烛和过滤介质之间吹入空气脉冲。
服务内容
这会导致滤布膨胀，使在重力作用下排出的滤饼破裂。完成后，蜡烛关闭至泥浆填充位置，重复循环。空气吹扫和/或滤饼清洗可并入循环中。在过滤元件完成时，在滤饼和囊之间泵送空气或洗涤液，然后通过进一步施加液压迫使滤饼进入循环。优点•尽可能干燥的滤饼固体•最大限度地减少体积•异常透明的滤液现场管式压榨试验的优点将对生产泥浆进行试验，并将在试验期间遇到生产进料的任何变化。客户将看到性能，特别是能够处理滤饼并观察滤液的澄清度。客户有机会运营工厂。有关这些可用服务的更多信息，请联系您的Metso代表。可靠的支持Metso专家是各种工业流程的专家。我们的政策是全面了解客户的应用程序。售后服务我们的售后服务为您提供全面详细的操作和维护说明、培训、专业的启动服务和技术援助。
Usage
As the particles become finer, the resistance to water removal increases. Gravity dewatering cannot be used anymore, and pressure must be used. By creating a differential pressure Dp on the solid filter cake, the liquid can be removed by washing on a tubular press. This is called displacement washing, where liquid is hydraulically forced through the filter cake. For vertical plate pressure filter, use compression or combination of compression and air through. For vacuum filters, use air that is blown through. Compression: "Dewatering by compression means that the liquid in the filter cake is removed by compressing the cake structure". Dehydration by blowing means replacing the water in the cake with air. For tubular presses, use compression or a combination of compression and air purification. In the same way, the tubular filter press The tubular press is a cylindrical membrane filter press designed to operate at filtration pressures up to 100 bar. Using these high pressures can achieve a higher degree of separation of the liquid and solid phases. The tubular press is suitable for the following applications: • Filter cake moisture with very low process requirements, such as smelters • Filter cake processability is critical. e. G. Underground mud • The filtrate is a valuable product • The transport cost of filter cake is very high • The filter cake will be treated to the landfill. Operating principle Filtering is carried out between two concentric cylinders. The outer cylinder is a shell, and the inner cylinder is a candle. Pump the process slurry into the annular space between the filter medium and the air bag. Then, the hydraulic fluid (water) is pumped between the air bag and the casing, the mud is placed under pressure and filtered. After filtration, use a vacuum to draw the hydraulic fluid out of the tube unit until the air bag expands on the housing. The candle is then lowered to the discharge position and an air pulse is blown between the candle and the filter medium.
service content
This will cause the filter cloth to expand and break the filter cake discharged under the action of gravity. After completion, close the candle to the mud filling position and repeat the circulation. Air purging and/or cake cleaning may be incorporated into the cycle. When the filter element is completed, air or washing liquid is pumped between the filter cake and the bag, and then the filter cake is forced into circulation by further applying hydraulic pressure. Advantages • Dry filter cake solids as much as possible • Minimize the volume • The advantages of the field tubular press test of the unusually transparent filtrate will test the production mud and will encounter any changes in the production feed during the test. The customer will see the performance, especially being able to handle the cake and observe the clarity of the filtrate. The customer has the opportunity to operate the factory. For more information about these available services, please contact your Metso representative. Reliable support Metso experts are experts in various industrial processes. Our policy is to have a comprehensive understanding of our customers' applications. After sales ServiceOur after-sales service provides you with comprehensive and detailed operation and maintenance instructions, training, professional startup services and technical assistance.
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