Dear All, In continuation to the ex

Dear All,



In continuation to the exchange of information on the “long bag filter development” as we all envisage, I would like to add that the Vietnam bag house is of 160dia x 9.4m lg & with 17bags being pulsed by a single valve, with 65NB valve size.



Whatever developments / testing we do, a rational approach needs to be taken w.r.t. bag length Vs bags being pulsed by a single valve. To share my experience from Intensive Coanda technology, the outer limits with 160 bag diameter, Pilot plant tested with dust, for needle felt fabric were

1. 12 m bag length with 17 bags being pulsed by a single valve

2. 10 m bag length with 22 bags being pulsed by a single valve

The end result of pulse pressure falling from header to bottom of bag after pulsing, were measured & based on test data, the required cleaning pressure was determined vis-à-vis bag length. In short, the cleaning pressure was fixed based on bag length, to have optimized cleaning.



To maintain the required Dp across the fabric, the “cycle time” of pulsing was maintained, to optimize the compressed air consumption. This was also pilot plant tested over a long period of time, to conclude the final result.



Another concept which gains importance in actual performance & guarantees, is to maximize “ Horizontal flow”, which will eliminate the effect of “can velocity”, to maintain lower Dp & emissions level. This is very critical for “high dust load” & “low bulk density” dust applications.



Knowledge of Fabric selection with special treatments, required fabric permeability, chemical effects on fabric from process conditions etc. plays a critical role in minimizing risk of guarantees. So, information & experience sharing within the KC group, will be of utmost importance.





Lastly, my best wishes to all for a “ Happy & prosperous new year-2015” & our next meeting in Kolkata, in end February, as fixed.



With best regards,



P.Maiti

結果 (中文) 1:

亲爱的所有， 关于"长管袋滤清器发展"作为我们所有信息交流继续设想，我想补充越南袋式除尘器 160dia x 9.4 m lg & 17bags 正脉冲由一个单一的阀门，65NB 阀门通径。 不管事态发展 / 测试我们做，一个合理的办法，需要采取关于袋长度 Vs 袋被脉冲用一个单一的阀门。分享我的经验，从外部界限试验厂测试具有防尘、 针刺毡为 160 袋直径密集康达技术织物被1.12 米制袋长度 17 袋被脉冲由单个阀门2.10 米制袋长度 22 袋被脉冲由单个阀门脉冲压力脉冲后, 的包底坠落头的最终结果是测量基于试验数据，所需的清洗压力是确定的相对于制袋长度。简言之，清洗压力被固定的基于制袋长度，有优化清洗。 为了保持所需的 Dp 面料横，"周期时间"的脉动被保持，为优化压缩空气消耗。这也是试点植物经过一长段时间，达成最终的结果。 并获得了在实际性能和保证，重要性的另一个概念是"横向流"，将消除"可以速度"的影响，最大限度地保持较低的 Dp 和排放水平。这是对"高粉尘负荷"及"低密度"尘应用非常关键。 知识的面料选用特殊治疗，所需的面料透气性，化学效应对织物的工艺条件等方面有着关键作用，保证风险降至最低。因此，信息及经验分享在 KC 组中，将极为重要。 最后，我祝福所有"幸福与繁荣新的一年-2015 年及我们下一次会议在加尔各答，在结束了 2 月，作为固定。 与最好的问候， P.Maiti

結果 (中文) 3:

亲爱的，在延续



对“长袋除尘器发展“信息交流我们的想像，我想补充的是，越南布袋是LG与17bags&160dia X 940万脉冲由一个单一的阀门，阀门通径与65Nb



任何进展。/测试我们，一个合理的方法需要关于袋长袋脉冲与由单阀。分享我从密集的康达技术经验，160袋直径外缘，粉尘测试的试验工厂，为针刺毡布

1。12米长袋脉冲袋17由一个阀

2。10米长袋脉冲袋22由一个阀

脉压下降从头到袋底脉冲后的最终结果，&测量试验数据的基础上，确定可见à可见袋长度所需的清洗压力。总之，清洗压力是固定的基于包的长度，以优化清洗。



维持所需的DP在布料上，“周期”脉冲保持，优化压缩空气的消耗。这也是试验厂经过长时间测试，到最后的结果。



另一个概念，获得重要的实际性能&担保，是最大的“平流”，这将消除影响的“速度”，以保持较低的DP&排放水平。这是“高粉尘负荷”“低密度”&粉尘应用非常关键。



知识面料的选择与特殊处理，所需的织物透气性，化学与工艺条件等起着至关重要的作用，将风险最小化，保证织物的影响。所以，信息&KC组内的经验分享，将是最重要的。





最后，我祝福所有为“幸福繁荣的新year-2015&&”我们的下一次会议在加尔各答，二月末，作为固定。



与诚挚的问候

，

p.maiti