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The Meaning Of Inline Mixing In Comparison To Static Mixing

By Adriana Noton


The first chemical emulsions that were created were obtained manually, but this method did not provide very good results. The final substance was inconsistent, in most cases. In present times, people are no longer using this method, because the advancement in technology has permitted the use of inline mixing. The new technology uses computerized machines and they can be great money savers when it comes to transport or production. People began to use static mixers, which were the first mixing machines.

Emulsions contain water in a high amount, reaching even ninety percent sometimes. It may not be enough just to have better blending, as these diluted chemicals occupy very much space and they usually generate various issues. Some problems are related to transportation, as the emulsions can degrade during transports.

The price of transporting the chemicals may be high and because of this, some companies which use many fluids in their business may be forced to keep them in storage for longer periods of time. If too much time passes, the stored liquids can create a proper environment for the growth of bacteria. To avoid the growth of microorganisms, professionals have decided to use the technologies that the textile industry is already using: static mixing and inline mixing (continuous blend).

The advantage of static mixers is that they do not have any moving parts. The first type of the static devices was built in 1960. By decreasing the size of the particles, the devices help them create a stronger connection, that will resist longer in time. The particles are divided multiple times until the desired size has been reached. The division of streams is made with the use of baffles. Once the particles are small enough, they join in a consistent mix.

Continuous blend or inline mixing was first used around 1990. Being made from a static mixer that is implemented into an automated machine, it also has an automated pump and one or more flowmeters.

The parts needed for the system to work are usually chosen according to the number of chemical substances that have to be mixed and according to the volume needed. In the textile industry and not only in it, the components that have to be contained by an inline mixer are: static mixers, mass flowmeters, inline heaters, progressive cavity pumps and programmable logic controllers.

Mass flowmeters manage the quantity of each substance that is pumped for mixing and they can also offer valuable information like temperature or density. Progressive cavity pumps can help in the movement of the mixed chemicals. The products that can be handled by a progressive cavity pump are numerous, as they can be from abrasive materials to different liquids.

Inline mixer mixing is an automated process, due to the advancements in technology of the last decades. Being used for obtaining mixed substances from various chemicals, the method is very efficient and it creates better emulsions. Inline mixers are made of static mixers and some additional components.




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