How many of the basic knowledge points about mixing equipment can you check off?

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I. Main components of mechanical stirring equipment and its unique components； II. What are the types of mechanical stirring equipment (classified by the position of the stirrer and the shape of the stirring vessel), and what are their respective advantages, disadvantages, and application ranges? ； III. How to determine the inner diameter and height of the mixing container ； IV. What are the heat exchange methods for mixing vessels, what are their respective advantages and disadvantages, and how are process calculations carried out? ； (Jacket, coiled tube) V. What are the types of jackets, what are their respective application areas, how to choose them, and how to calculate their strength? ； For integral, semi-tube, section steel, and honeycomb types: What are the specific requirements for the design of integral jackets? ； What are the structural types of overall jackets? ； The characteristics of various jacket structures in general, and how to determine their dimensions – such as the type of jacket end caps and the requirements for jacket flanges ； VII. How to install the supports on the container ； 1. How to position containers without jackets ； 2. How to position the overall jacketed container ； 3. How to install honeycomb jackets, section steel jackets, and half-pipe jackets ； 4 How to place the external coil container ； VIII. How to handle when attachments pass through the jacket ； IX. Types of reducers, their respective characteristics, application ranges, and how to select them ； X. Classification and characteristics of reducer frames ； Under what circumstances can a pivotless bracket be used? ； Under what circumstances can a single-support bracket be used? ； Under what circumstances can a double-pivot bracket be used? ； XI. What are the commonly used couplings, and how to choose them ； 　　Principles for selecting couplings between reducers or motors and drive shafts ； XII. Precautions to be taken when selecting flange flanges and bottom covers after choosing the rack ； 13. What are the connection structures between flanged flanges and the top flange of a container? How to choose them? How to determine their structural dimensions? What are the strength calculations involved? What are the structures for bottom support and intermediate support, and how to select them? How to determine their structural dimensions? ； XIV. Types of shaft seals ； 　　Liquid seals: When liquid seals are necessary under certain conditions, what requirements must be met when selecting them? ； 　　Packing seal: Under what conditions is a packing seal necessary? What requirements must be met when choosing a packing seal? ； 　　Mechanical seals: Under what conditions are mechanical seals necessary? What requirements must be met when choosing a mechanical seal? ； Focus: Their requirements for the axial runout and radial runout of the shaft ； 15. In which applications are different types of mechanical seals suitable? ； 16. Selection of material combinations for mechanical seals ； 17. Mechanical seal circulation protection system ； 18. Several operating modes of the mechanical seal circulation protection system, and the situations in which each is applicable ； 19. Some additional details to consider when selecting the frame, flange fittings, mounting base, and shaft seals ； 20. Calculation of the power required for a mixer: How to calculate it when the model and size of the mixer are the same, and how to calculate it in other cases; as well as the positioning of the mixer within the mixing equipment ； 21. How to calculate the allowable stress of paddle materials ； 22. Types of agitators and how to calculate their strength ； 23. Other issues to consider in mixer design ； 24. What is the structure used to connect the mixer to the shaft? ； 25. How are the dimensions of the mixer shaft sleeve determined? ； 26. Calculation of key strength ； Under what circumstances is it necessary to calculate keys? ； 27. How are the dimensions of the stirring shaft and drive shaft determined? ； 28. Under what circumstances can the mixing shaft and drive shaft be integrated into one unit ； 29. Some basic conditions for the calculation of the stirring shaft, as well as the stress model ； 30. Calculation of the effective mass of the stirring shaft, calculation of the effective mass of the disk (stirrer and attachments) ； 31. Calculation of the first-order critical speed for a cantilever and a two-axis section with equal diameters between spans ； 　　　Calculation of the first-order critical speed for cantilevers and two-axis sections with unequal diameters across the span ； 　　　Calculation of the first-order critical speed for a single-span shaft ； 32. Stirring shaft diameter based on strength calculation (hollow and solid) ； Other requirements for the strength calculation of mixing equipment ； 33. Final determination of the diameter of the stirring shaft, as well as the structural dimensions of the shaft – such as the maximum allowable diameter for each step, the machining precision required for the various connection surfaces, tolerances, etc. – and selection of the shaft material ； 34. Stirrers, stirring shafts, and test requirements for the dynamic and static balance of stirrer and shaft assemblies ； 35. Determination of the fluid radial force coefficient K1 ； 36. Requirements for the machining and inspection of components, technical requirements for equipment assembly ； 37. Equipment flanges ； 1) The types of equipment flanges, as well as the advantages and disadvantages of each type and the situations in which they are suitable for use ； 2) The standard number of the equipment flange; what should be considered when selecting standard equipment flanges ； 3) How to calculate the flanges of non-standard equipment, how to determine their structural dimensions, and what constitutes an optimal design ； 4) What are the materials for equipment flanges, and how to choose them ； 5) Manufacturing of equipment flanges – what are the technical requirements for flange production? ； 38. Bolts and nuts ； 1) Bolt material selection, standard selection, load calculation ； 2) Bolt length calculation ； 39. Gaskets ； 1) Common types of flange gaskets and their application ranges ； 2) What do the characteristic parameters “m” and “y” of the gasket represent, and what is their relationship to the calculations related to flanges? ； 40. Pipe flange ； 1) What are the standards for pipe flanges, what are the differences between these standards, how to choose the appropriate standard, and what considerations should be taken into account when selecting standard flanges? ； 2) How to design non-standard pipe flanges ； 3) How to consider opening weakening on the flange cover ； 4) How to select the materials for the bolts and nuts of pipe flanges, and how to determine their length ； 41. Holes and hole reinforcement ； 1) Reinforcement structures (reinforcement with rings, reinforcement with thick-walled fittings, and reinforcement with fully forged components) ； 2) Introduce the advantages, disadvantages, and applicable scenarios of each reinforcement structure respectively ； 3) What are the calculation methods for opening reinforcement? ； 4) What considerations are needed for reinforcing the openings on convex end caps? ； 5) What are the requirements regarding the distance between openings and weld seams, and what should be done if these requirements are not met? ； 6) When performing calculations for opening reinforcement and determining the effective thickness of the shell, why is a weld coefficient of 1 used? 17) Distribution of equipment manholes and access holes: 42. Regarding materials: 1) Is it necessary to conduct re-inspection in accordance with tolerance specifications? ； 2) Is non-destructive testing such as UT% required for the materials? ； 3) Is a shock test required? ； 4) What is intergranular corrosion, and how to prevent it? ； 5) What is crevice corrosion and how to prevent it ； 6) What is stress corrosion, and how to prevent it ； 7) What is pitting corrosion, and how to prevent it? ； 43. Manufacturing aspect ； 1) Is it necessary to prepare welding test plates ； 2) Is heat treatment required? ； 3) Is it necessary to grind the fillet weld smooth? ； 4) Is a shock test required? ； 44. Requirements regarding testing ； 1) How to inspect Class A/B welds ； 2) How to inspect Class C/D welds ； 3) How is the hydrostatic test carried out, and what constitutes success? ； 4) How is the pressure test carried out, and what constitutes a pass? ； 5) Under what circumstances is a leak test required ； 45. Shaft Sealing 1) Packing Seal ； 2) Mechanical seal ； Upon closer examination, there is more than just what has been mentioned above; such a wealth of knowledge requirements tests the professional competence of those working with chemical processing equipment. How many items on the list above can you check off?