How can the problem of uniform mixing in oil storage tanks be solved?
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Our oil storage tanks contain crude oil from different sources, and uneven mixing can affect its usability. How can this be resolved?
A mixing nozzle can be installed at the inlet, extending toward an upward-facing shower head to the center of the tank.
We have encountered similar issues before; you can try adding a mixing pump or transferring the contents to another container. There should also be a stirrer inside the tank.
We originally used aeration for dehydration, which resulted in uniformity, but unfortunately it caused odor pollution.
A stirrer is added to the bottom of the tank. :lol :)
An injector is installed inside the storage tank, powered by a circulation pump.
There is now a rotating harmonic nozzle that offers good results
Pipeline blending is still feasible, and static mixers are also used for this purpose.
Three mixers are added at the bottom of the pipe, depending on the size of the storage tank
Three mixers are added at the bottom of the pipe, depending on the size of the storage tank
Personally, I think stirring inside the tank is better, as it provides a higher safety factor
For you, the appropriate method should be mixing inside the tank, that is, by installing nozzles inside the tank, along with circulation lines and a circulation pump to carry out mixing through circulation； Alternatively, a ring tube with uniform small holes can be added to the tank and connected to nitrogen, with mixing achieved through gas agitation; however, this method is not suitable for floating roof tanks or internal floating roof tanks.
For factories, pouring is the most practical method. A backflow process should be added in the tank area.
Our facility installed lateral agitators in both the refined oil tank area and the crude oil tank area, but they were not useful in the end and represented a waste of money; mixing nozzles are the better solution, as they can address the problem of oil stratification.
Static mixers probably won’t work well for crude oil, right? Light oil blending is more suitable. For crude oil, the common methods are tank transfer and nozzles – the kind mentioned by the friend on the 8th floor; they work quite well.
Our oil tank is equipped with a mixer; the downside is that, due to the mechanical seal used, leaks can occur quite easily.
A rotary injection system can be used; products of both domestic and international manufacturers are available, and all of them meet the requirements.
To address the issue of leakage in side-stirrers that use a single layer of mechanical seal plus graphite packing seal, our company has developed side-insertion stirrers equipped with a double-layer mechanical seal, which effectively solves the problem of leakage of the medium inside the tank. These stirrers have been on the market for over a decade, and their performance is excellent.:victory:
Our factory uses \"static mixers\"; several types of oils are fed into the same pipeline in proportion, and a static mixer is installed on this main pipeline.
We manufacture the nozzles ourselves; they are lotus-shaped, with one nozzle at the center pointing upward and six nozzles surrounding it pointing upward at an angle. These nozzles are placed in the center of the bottom area of the tank. It is necessary to control the self-circulation time properly, as well as to calculate the spraying height accurately and manage the liquid level – a low liquid level can cause impact on the floating roof.