Drier Rotor With Segmented Driving Elements
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing drying devices for mixtures of liquids and solids are inefficient in maximizing evaporation surface area and gas flow, leading to suboptimal drying performance.
Innovation Solution
The drying device features a rotor with radially aligned, alternately narrow and wide plate-shaped entrainment elements and lattice design, allowing for increased wettable surface area and gas flow through the entrainment elements, along with a blower for generating a heated air flow, which enhances evaporation and drying efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of moving object
If the rotor is equipped with a large number of wide driving elements to maximize evaporation surface area, then the drying effectiveness is improved, but the gas flow through the rotor is hindered
Solution Approach 1:
The driving elements are segmented into alternating narrow and wide sections along the circumferential direction of the rotor. This segmentation allows the rotor to provide both wide surfaces for evaporation and narrow gaps for gas flow, resolving the contradiction between maximizing surface area and maintaining gas flow permeability.
Solution Approach 2:
Different sections of the driving elements have different widths to serve different functions: wide sections provide evaporation surface area while narrow sections facilitate gas flow. This local variation in geometry allows simultaneous optimization of both evaporation effectiveness and gas flow characteristics.
2Area of moving object
If driving elements are positioned close to each other radially to maximize wettable surface area, then drying performance is improved, but gas flow between elements is reduced
Solution Approach 1:
The driving elements are divided into alternating narrow and wide circumferential sections, creating a pattern where wide portions maximize wettable surface area while narrow portions maintain gas flow channels. This segmentation resolves the spatial conflict between surface area maximization and flow preservation.
Solution Approach 2:
The solution transitions from a two-dimensional view of driving element placement to a three-dimensional alternating pattern along the circumferential direction. By utilizing the circumferential dimension with alternating narrow and wide sections, the design achieves both close radial positioning for surface area and sufficient gaps for gas flow.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This configuration significantly increases the drying effect by maximizing the surface area and flowability, achieving better thickening of mixtures with reduced transport and storage costs.
Implementation Method 1
The mixture adhering to the blades is subject to increased evaporation on the portion of the rotor's circumference that is not immersed in the mixture
Implementation Method 2
The surfaces of the blades can be flat, perforated, or have projections. This evaporation effect is significantly enhanced by the application of an airflow, generated by a blower
Implementation Method 3
at least some, and preferably all, of the driving elements are provided with a plurality of through-openings
Implementation Method 4
Exhaust gas from the rotary kiln flows through the rotor, first flowing from the outside through the rotor shell, then flowing transversely within the rotor
Data Source
Figure 1~2
Figure 3
Figure 4
AI summary
A drying device for a mixture (9) of a liquid and one or more solids, comprising a receiving container (5) for the mixture (9), a rotor (2) arranged with a section of its circumference in the receiving container (5), and a drive device (3) for rotating the rotor (2), wherein the rotor (2) has a plurality of planar driving elements (14), is characterized in that the driving elements (14) have a radial orientation with respect to an axis of rotation (17) of the rotor (2), wherein at least some of the driving elements (14) have a configuration in which relatively narrow driving elements (14) alternate with relatively wide driving elements (14) in the circumferential direction of the rotor (2), and/or that at least some of the driving elements (14) are provided with a plurality of through-openings.