Regarding static slag breakers

The question is unprofessional; no one pays attention to it. Speaking from a personal perspective, the static slag breaker should not be removed. A static slag breaker can, first, crush slag lumps, and second, break up larger ones. During production, large lumps of about 1000*700 dimensions were seen on the static slag breaker; I recall that at that time the furnace was not operating properly, with severe slag accumulation in the downcomer, and the furnace had to be shut down before measurements could be taken in the quench chamber. It’s not clear when those lumps fell there. If no static slag breaker is used, very large pieces might get stuck above the slag-breaking blades of the dynamic slag crusher and fail to be broken, thus causing blockages; the static slag breaker plays a role to some extent in preventing this. Personal opinion.

May I ask, what is the difference between a static slag breaker and a dynamic slag breaker? It seems like I’m hearing about it for the first time – learning *ING*.

I have never seen the drawings or the actual device of a static slag breaker, but it seems to me that such a device is more like a filter. Can large pieces of slag really be broken down?

Good topic; those who understand it please explain in detail.

I haven’t seen a physical specimen of a static slag breaker either, but I can share some information regarding it. Slag breaking principle: Slag breaking is achieved through turbulence in the slag water. The sludge-water between the washing cooling tube and the static slag breaker becomes quite turbulent due to the disturbance caused by bubbles. Turbulence of slag water: I. It causes the fine slag that is loosely piled on the grids of the static slag breaker to sink ； II. Continuously perturb the large slag, causing it to break apart upon collision with the pyramid. Those with a size of less than 150 mm pass through the gaps in the grid of the static slag breaker and enter its lower part; the majority settle and are carried to the lock hoppers by the circulating water in those hoppers, while a small amount is discharged into the evaporation hot water tower along with the black water (with a solid content of about 1%) ； Ash and slag with a size greater than 150 mm roll downward along the inclined surface of the static slag breaker grid (at an angle of 60 degrees to the water surface), driven by gravity and water turbulence; during this rolling process, they are crushed by the pyramids of the static slag breaker due to water turbulence and then enter the lockhopper. Every event has two sides. It is assumed that the purpose of a static slag breaker is to prevent slag bridging and blockages (in my opinion). Static slag breakers can break up fluffy slag (which can bridge or cannot bridge), but certain slag that cannot be broken apart (which does not bridge and can be broken by dynamic slag breakers) as well as bridging slag will accumulate on them. If the amount of unbreakable slag is large, it will cause blockages on these devices, leading to subsequent problems.

I remember someone knowledgeable once asking me “how to start a static slag breaker”; to this day, I have no answer. Just joking. The static slag remover is just a small cage placed on top of the slag remover. I think if a Texaco furnace is equipped with a slag remover, there’s no need for a static slag remover as well. If any refractory bricks do fall off, the wall temperature will show an increase immediately; by that point the furnace has already been shut down for maintenance, so it’s not possible for such a device to prevent large pieces from falling through. After the slag is quenched, whatever can be crushed gets crushed; and even the slag crushing machine is no pushover. But for furnaces with bubble-breaking strips, a static slag breaker can be used to prevent the slag breaker from getting stuck.

The static slag breaker has an auxiliary function, serving as a stepping point when building scaffolding for maintenance.

Reply to 8# xuqinger: Haha, the feature mentioned by the moderator is very important.

This feature is a bit too expensive! !

Just joking. In fact, static slag-breaking devices do have a certain capacity to break slag; large pieces falling from above carry kinetic energy, and when they hit the steel grills of such devices, they get broken into pieces； Additionally, the four-nozzle plug bricks tend to break off when removed, and they also require support from a static slag breaker; otherwise, such large pieces of refractory material would pose problems whether they end up in the slag breaker or in the lock hopper ； With a static slag breaker, the slag crusher is basically unnecessary. Compared to the millions of dollars required for slag breakers, static slag breakers are truly inexpensive and efficient.