In view of the widespread industry prospects of the hollow slurry drying machine for sludge, it is necessary to conduct in-depth drying calculations and integrate raw material capabilities and design finite element principles to provide detailed stress levels for key components of the drying machine. This provides suggestions for improving the strength of the drying machine in various practical designs.
The diversity of job nature requires the use of large and medium-sized finite element software to calculate the stress distribution of key components and hollow blades of machinery and equipment, and to evaluate the system strength. Therefore, in order to achieve the original design size and structure of the drying machine, a three-dimensional industrial model should be used as the main body of the dryer, while a centrally symmetrical two-dimensional solid model should be used for the blades.
The design working pressure of the dryer is 1.3 MPa, and the design ambient temperature is 180 ° C. The initial conditions of the dryer body are: selecting either side as the symmetrical initial condition, and coupling the head side cycle time with the other side of the tube bundle and the terminal equipment force load; Limit the reverse offset of the upper port; The work pressure increases to the force on the entire structural model, and a part of it becomes dry; Turn off the symmetry boundary. The initial condition of the dryer blades is that the symmetry boundary is between the lower part of the central axis and the lower part of the blades, and the port force load is applied to a part of the center line of the drying machine, with the pressure load increasing on the part under stress.
The stress on the key structure of the dryer is relatively high: the connection between the support tube and the protective sleeve; The more stress a hollow blade experiences, the greater the connection between the blade and the centerline (on the blade).
