【Haichuan Equipment Guessing Game】What is the purpose of installing a chimney on top of a storage tank?

Is it something like a dust collector or similar device?

It’s not clear what substance is stored in the tank – whether it’s a solid or a liquid. It could be a bag filter used for dust removal, or it could be a condenser used for venting condensate. However, given that the purpose is to reduce dust levels, it’s likely that a solid is stored there. The chimney that can be seen suggests that it’s probably a bag filter

I learned that these coal powders are all stored in tanks.

Bag filters or washing tanks.

I don’t know; let’s see if anyone downstairs knows

Look, this container is made of stainless steel; it probably doesn’t contain coal powder – that would be too extravagant

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In any case, it must be solid dust; you can tell just by looking at the external conveyor pipes. Fluidized state transportation.

I learned a new term: the state in which a large number of solid particles are suspended in a moving fluid, thereby endowing those particles with some of the apparent properties of the fluid. This state of solid-fluid interaction is known as solid fluidization, or a fluidized bed. When the flow rate of the fluid through the bed gradually increases to a certain value, the particles become loose, the gaps between them widen, and the volume of the bed expands. If the fluid velocity is increased further, the bed layer will not be able to remain in a fixed state. At this point, all the particles are suspended in the fluid, exhibiting quite irregular motion. A fully fluidized bed exhibits properties similar to those of a liquid. Fluids with a density lower than the average density of the bed layer can remain suspended on the bed surface; the bed surface remains horizontal; the bed layer obeys hydrostatic principles, meaning that the pressure difference Δp between two cross-sections separated by a height L is given by Δp = ρgL. The particles exhibit fluid-like behavior and can be ejected through small holes in the vessel walls; two interconnected fluidized beds can adjust their upper surfaces so that they are at the same level.

The regenerator and settler beds in catalytic cracking are fluidized beds, and the pipeline transportation method for feeding catalyst in large quantities or small quantities from the fresh catalyst tank or equilibrium catalyst tank to the regenerator is called fluidized-state transportation.