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沼气脱硫塔的扒塔与洗塔应该如何进行?

时间:2019-07-22
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扒塔是一项很繁重的工作,不仅劳动强度大,而且脱硫液对皮肤尤其是眼睛刺激性很大,扒一次填料,施工作业人员的眼睛得红肿疼痛两叁天。所以塔能不扒尽可能地不扒,能少扒一次少扒一次。另外就是扒填料之前要做好准备工作,要有详细的施工方案和安全防护、劳动保护措施。
Picking tower is a very heavy work, not only labor intensive, but also the desulfurization fluid is very irritating to the skin, especially the eyes. Picking the filler once, the construction workers'eyes will be red, swollen and painful for two or three days. So the tower can not pick as much as possible, can pick less once less. In addition, the preparation work should be done before picking up the filling materials. Detailed construction plan, safety protection and labor protection measures should be taken.
大多数时候脱硫塔阻力大而被迫扒塔时,塔内的填料还能用,并不用更新。这就要对塔内填料进行回收,清理一下重新装到塔里。
Most of the time, when the desulfurization tower is forced to scrape because of its high resistance, the packings in the tower are still available and need not be updated. This is to recycle the packings in the tower, clean them up and reload them into the tower.
有的单位扒塔工作做的很仔细,把填料扒出来后,用水冲洗后再装到塔里。这样一来必然要消耗大量的水,冲填料的水往哪儿去也是个大问题。
Some units work very carefully in picking up the tower. After picking out the packing, they flush it with water and then put it into the tower. This will inevitably consume a lot of water, flushing filler water where to go is also a big problem.
对于规整填料,可能现在用的很少了,首先明确一点就是不要按厂家要求的那样新填料装好后把打包带剪断,那样的话扒塔的工作量就大了。在打包带完好的情况下,塔内用脱硫液边冲边扒,塔里的填料可以整块地从人孔运出来,少量散的也能分层规置规置单独存放。扒出的填料不用水冲,直接放到一片干净的场地晾干,摔打一下就行。用手提起来一块感觉很轻,说明硫沫基本掉干净了。散了的重新组成块用打包带打包。最后将填料重新组圆,就可以往塔里装了。
For regular packing, it may be used very little now. First of all, it is clear that the packing belt should not be cut after the new packing is packed as required by the manufacturer, so that the workload of the picking tower will be large. When the packing belt is in good condition, the desulfurization liquid is used to punch the edge of the tower, and the packing in the tower can be transported out of the manhole in whole piece, and a small amount of scattered packing can be stored separately by layered gauge. Pick out the filler without water flushing, directly put in a clean field to dry, hit it on the line. It feels light to lift a piece by hand, indicating that the sulfur foam has basically fallen off. The fragmented reconstituted blocks are packed with packing tape. Finally, the packing can be re-rounded and packed into the tower.
沼气脱硫
散装填料的扒装工作量相对小一些,但对环境影响较大,因为填料要从卸料孔扒出来,这样粘附的硫沫、带出来的脱硫液要比扒规整填料多,弄得现场脏不说,关键是这些脱硫液和硫沫要污染环境。卸出来的填料现场抖一下,只要填料不被硫沫粘在一起,填料上的孔隙基本出来就行,不用非得用水冲出填料的本来面目。然后将填料直接装袋,就可以重新装到脱硫塔里了。
The picking work of bulk packing is relatively small, but it has a greater impact on the environment, because the packing should be picked out from the discharge hole, so that the adhered sulfur foam and the desulfurization liquid brought out are more than the picking regular packing, which makes the site dirty, not to mention, the key is that these desulfurization liquid and sulfur foam pollute the environment. The unloaded stuffing shakes on the spot. As long as the stuffing is not stuck together by sulfur foam, the voids on the stuffing basically come out. It is not necessary to wash out the original appearance of the stuffing with water. Then the packing is directly packed into bags and can be re-packed into the desulfurization tower.
扒出来的填料重新装了以后,从开车到系统加负荷这段时间可以大液量操作。此时气量小,正适合大液量通过。通过大液量操作,可以使填料得到进一步地清洗,这时候虽然气量不大但再生槽硫泡沫很多。系统逐步加满负荷后,对脱硫塔的阻力进行认真的测量,即验证了扒装的效果,也为塔阻力的变化监测留下了原始数据。
After removing the packing, it can be operated in large volume during the period from start-up to system loading. At this time, the gas volume is small, which is suitable for the passage of large liquid volume. Through the large volume operation, the fillers can be further cleaned. At this time, although the gas volume is not large, there are many sulfur bubbles in the regeneration tank. After the system is gradually full load, the resistance of desulfurization tower is measured carefully, which verifies the effect of picking, and also leaves the original data for monitoring the change of tower resistance.
关于洗塔,脱硫塔阻力大了,现在也有一些不扒填料而对填料进行塔内清洗的做法,主要分二种。一种是不停车在线清洗,(当然这种方法停车后也能用),但本人没有做深入地了解,猜测可能是一种剥离剂、分散剂类的东西。另一种是停车后清洗,主要是利用硫化钠溶解单质硫的化学反应。
As for scrubbing tower, the resistance of desulfurization tower is bigger. Now there are some ways to clean the packing in the tower, mainly in two ways. One is on-line cleaning without parking (of course, this method can also be used after parking), but I did not do in-depth understanding, speculation may be a peeling agent, dispersant class of things. The other is cleaning after parking, mainly using sodium sulfide to dissolve the chemical reaction of elemental sulfur.
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