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Today pigs are used during all phases in the life of a pipeline for many different reasons. Fig. 1 Cleaning pig in a pipeline Fig. 2 Classification of pipeline pigs. Pigs used today can be divided into three categories (Fig. 2): Utility Pigs, are used to perform functions such as cleaning, separating, or dewatering.
Pigs are used in lube oil or paint blending to clean the pipes to avoid cross-contamination, and to empty the pipes into the product tanks (or sometimes to send a component back to its tank). Usually pigging is done at the beginning and at the end of each batch, but sometimes it is done in the midst of a batch, such as when producing a premix ...
Ice pigging is a technique used for cleaning pipes, distinguished from traditional pigging by the use of a semi-solid 'pig' made of ice, rather than a solid object. This ice pig is capable of flowing through pipes, navigating obstructions such as valves and variations in pipe diameter, due to its fluid-like properties.
Image credits: LittlestSlipper55 When you look around, you might be surprised how many things have names that can really mislead you. Take guinea pigs, for example.
If you’ve been baking long enough, you probably have a few secrets for baking can’t-resist cookies. But there’s one thing many folks forget. Skip to main content. 24/7 Help. For premium ...
If you just use your computer to do things like watch online videos and read the news, you're probably OK to delete cookies whenever the mood strikes, Steinberg says.
To minimize leakage of animal waste into the ground water, newer lagoons are generally lined with clay [8] Studies have shown that in fact the lagoons typically leak at a rate of approximately 1 millimetre (0.04 inches) per day, with or without a clay liner, [9] because it is the sludge deposited at the base of the lagoon that limits the ...
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