Steam is introduced directly into the reactor – how can we prevent material from being washed away?
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This post was last edited by shiworkstation on 2017-12-20 08:32. The arrows indicate the steam pipes; steam is introduced into the reactor through that spray-like device, thereby directly heating the material. The pressure is 10 bar. There is liquid inside the reactor, and the pressure in the reactor is at atmospheric level. To prevent backflow of material, what should be the maximum pressure of the steam? In other words, as long as the facility for introducing steam to the lower part is properly designed, material surging will not occur. Please provide some information.
Turn on the stirrer before introducing steam, and control the amount of steam added – will this cause the material to be flushed away? I don’t think so
Can the liquid level in the mixing tank be controlled?
What level do you consider as “material ejection” – when steam blows the material out of the tank? This is a stirred-tank reactor; what’s the problem with using air to force the material around and enhance stirring? What are those green circles? Are they coiled tubes, outer coils, inner coils? And then there’s direct steam injection – this process is a bit hard to understand
It’s another guessing question – does the steam flow through the coil, or does it come into direct contact with the material to heat it? Could you please write that down clearly? 10 kilograms of pressure is not a small amount of pressure
First, you need to know the thickness of your material layer, as well as the density and mass of the material; only then can you calculate the steam pressure required. This isn’t easy to calculate, and I doubt anyone will do it for you. I think you should find a solution through the operating procedures. One. Is it really necessary for the steam pressure to be so high? What is the role of steam? When determining the pressure at which steam should be introduced, open the steam valve slowly and allow a small amount of steam to enter, then gradually increase the amount. Pay attention to the level of boiling at the liquid surface in order to control the amount of steam supplied.
Gas distribution plates are usually installed at the bottom. To prevent material overflow, it is necessary to gradually adjust the amount of gas entering, based on the conditions on site, and make further adjustments by observing the reflux or liquid output.
That means experiments can only be conducted on-site; calculations are not possible because the unknown factors are too complex, right?
Heat it too quickly; try heating it slowly. Controlling the stirring should prevent problems