扒塔是一項很繁重的工作，不僅勞動強度大，而且脫硫液對皮膚尤其是眼睛刺激性很大，扒一次填料，施工作業人員的眼睛得紅腫疼痛兩叁天。所以塔能不扒盡可能地不扒，能少扒一次少扒一次。另外就是扒填料之前要做好準備工作，要有詳細的施工方案和安全防護、勞動保護措施。
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.
大多數時候脫硫塔阻力大而被迫扒塔時，塔內的填料還能用，并不用更新。這就要對塔內填料進行回收，清理一下重新裝到塔里。
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.
有的單位扒塔工作做的很仔細，把填料扒出來后，用水沖洗后再裝到塔里。這樣一來必然要消耗大量的水，沖填料的水往哪兒去也是個大問題。
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.
對于規整填料，可能現在用的很少了，首先明確一點就是不要按廠家要求的那樣新填料裝好后把打包帶剪斷，那樣的話扒塔的工作量就大了。在打包帶完好的情況下，塔內用脫硫液邊沖邊扒，塔里的填料可以整塊地從人孔運出來，少量散的也能分層規置規置單獨存放。扒出的填料不用水沖，直接放到一片干凈的場地晾干，摔打一下就行。用手提起來一塊感覺很輕，說明硫沫基本掉干凈了。散了的重新組成塊用打包帶打包。后將填料重新組圓，就可以往塔里裝了。
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.
散裝填料的扒裝工作量相對小一些，但對環境影響較大，因為填料要從卸料孔扒出來，這樣粘附的硫沫、帶出來的脫硫液要比扒規整填料多，弄得現場臟不說，關鍵是這些脫硫液和硫沫要污染環境。卸出來的填料現場抖一下，只要填料不被硫沫粘在一起，填料上的孔隙基本出來就行，不用非得用水沖出填料的本來面目。然后將填料直接裝袋，就可以重新裝到脫硫塔里了。
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.
扒出來的填料重新裝了以后，從開車到系統加負荷這段時間可以大液量操作。此時氣量小，正適合大液量通過。通過大液量操作，可以使填料得到進一步地清洗，這時候雖然氣量不大但再生槽硫泡沫很多。系統逐步加滿負荷后，對脫硫塔的阻力進行認真的測量，即驗證了扒裝的效果，也為塔阻力的變化監測留下了原始數據。
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.
關于洗塔，脫硫塔阻力大了，現在也有一些不扒填料而對填料進行塔內清洗的做法，主要分二種。一種是不停車在線清洗，（當然這種方法停車后也能用），但本人沒有做深入地了解，猜測可能是一種剝離劑、分散劑類的東西。另一種是停車后清洗，主要是利用硫化鈉溶解單質硫的化學反應。
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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2019-07-22
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