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chemical PROCESSES
when i follow the sequence of events in the chemical plant, we can see solid raw materials go in the stock pile crushers, grinders and and then by conveyers to the reaction vessels. for liquid raw materials, the storage tank is the starting point, after which pumps, and perhaps proportioning devices, are required.the same is true of gases which must be propelled by means of tans, blowers, and compressors; for they are to be cooled in coolers and washed. the devices used for the cleaning of a gas and a dust dry cyclones, filters and scrubers. is
materials must be mixed, liquids as well as solids. this process performed in various types of mixers, ancagitators.at the other stages solids are to be separated from liquids in filters, centrifuges, or simply by setting the suspended solid in a settling tank or in a continuous mechanical setting units generally known as thickeners or clarifiers. solutions of solids are evaporated in evaporators they crystalize in crystallizers, and they are dried in dryers. mixtures of liquids, on the other hand,are usually separated in distillation equipment.
Auxiliary equipment, such as vacuum pumps, heat exchangers, and vessels, especially kettles, are required in many of these operations, as well as numerous types of instruments for measurement and control.
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