This is probably the most useful description of mixing as it allows the adoption of a unified approach to the problems encountered in a range of industries. Several attempts have been made to classify mixing problems, and for example “REAVELL” used as a criterion for mixing of powders, the flowability of the final products, HARNEY et al based their classification on the phases present, that is liquid – liquid, solid – liquid and so on. Mixing is achieved by moving material from one region to another. It may be of interests simply as a means of achieving a desired degree of homogeneity or it may be used two proote heat undergoing a chemical reaction.Īt the outset I t is useful to consider some common examples of problems encountered in industrial mixing operations, since this will nto only reveal the ubiquitous nature of the process but will also provide an appreciation of some of the associated. The terms “mixing” is applied to the processes used to reduce the degree of non uniformity or gradual of a property in a system such as concentration, viscosity, temperature and so on. Propeller agitator mixing is one of the most common operations carried out in chemical, processing and allied industries. The cost of construction of the agitator is however minimized due to the preferred choice of the raw material and method of fabrication. The estimated rate of rotation is 1720 rpm. The agitating mixer has high efficiency of comparable to those produced industrially. These are length of handle = 320mm, diameter of gear teeth = 100mm, thickness of shaft = 20mm, thickness of gear = 12mm, size of blade = 50mm x 100mm, blade diameter = 63mm, inside diameter of pump = 12mm, outside diameter of pump = 20mm, shat height = 470mm, vessel diameter = 340mm and height = 560mm The shapes and forms are formulated to obtain the following dimensions of the agitator. After the procurement, the following constructional operations were carried out which included marking out, center punching folding, welding, filling operation, assembling, and painting to beautify the equipment and for other purposes. In the construction, mild steel was chosen due to it’s inherent properties. It consists of three basic components which are the shaft, blade and the vessel. Perfect for chemical engineers, mechanical engineers, process engineers, chemists, and materials scientists, Agitator Design for Gas-Liquid Fermenters and Bioreactors will also earn a place in the libraries of pharmaceutical scientists seeking a one-stop resource for designing mechanically sound agitation systems.Propeller agitator is a specialized of various types of substances. An examination of heat transfer surfaces and calculations, shaft seal considerations, mounting methods, and mechanical design.Step-by-step processes to assist engineers, chemists, and scientists.
#Agitator design principles how to
Problem-Oriented Learning with Activated StudentsĪGITATOR DESIGN FOR GAS-LIQUID FERMENTERS AND BIOREACTORSĮxplore the basic principles and concepts of the design of agitation systems for fermenters and bioreactorsĪgitator Design for Gas-Liquid Fermenters and Bioreactors delivers a concise treatment and explanation of how to design mechanically sound agitation systems that will perform the agitation process function efficiently and economically.