Dual-Grate Bulk Material Drying Device with Gravity Distribution
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing bulk material drying devices face inefficiencies due to complex designs that require the drying grate to be drivable, leading to uneven drying and increased energy consumption, as well as structural complexities that impair uniform air passage and material handling.
Innovation Solution
A device with a horizontally arranged floor element featuring a first and second drying grate, where the horizontal distance between the first grate's profile bars is 1.2 to 3 times the vertical distance between the grates, allowing for adjustable gaps that prevent material from falling during loading and facilitate easy removal of dried material, and an optional drive element for shaking or oscillating movements to aid in material alignment and removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the drying grate is designed to be drivable to move and distribute bulk material, then the bulk material can be distributed without additional equipment, but the construction becomes complex and impairs uniform air passage
Solution Approach 1:
The bulk material itself serves as the distribution medium. When material is added to the upper drying grate, it naturally flows down through the gaps between bars and distributes across the lower drying grate, eliminating the need for mechanical driving or additional distribution equipment.
Solution Approach 2:
The drying system is divided into two separate drying grates (upper and lower) with specific bar spacing. The upper grate receives material while the lower grate provides support and additional drying surface, allowing material distribution without complex mechanical mechanisms.
2Ease of operation
If the drying grate is designed to be drivable for material distribution, then material can be moved, but energy consumption increases
Solution Approach 1:
The system uses the natural flow of bulk material under gravity to achieve distribution and movement functions, eliminating the need for energy-consuming driving mechanisms. Material flows from the upper grate through gaps to the lower grate automatically.
Solution Approach 2:
Instead of using mechanical power to move material through a single moving grate, the invention inverts the approach by using gravity and material flow to naturally distribute itself across two stationary grates, reversing the conventional powered distribution method.
3Device complexity
If a single perforated base is used for drying, then the structure is simple, but uniform drying is impaired due to complex design requirements
Solution Approach 1:
The single perforated base is segmented into two distinct drying grates with different functions. The upper grate receives and initially dries material while the lower grate provides support and continues drying, with each grate having optimized bar spacing for its specific function, achieving uniform drying without compromising structural simplicity.
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 design enhances the cost-effectiveness of the drying device by eliminating the need for a drivable grate, improves drying efficiency by maintaining low pressure loss, and allows for universal usability across different materials, while automating the removal and refilling process to maintain consistent drying conditions.
Implementation Method 1
drying air supply device, which is arranged below the floor element... for drying air is passed through the bed from below
Implementation Method 2
drying air supply device... for drying air is passed through the bed from below
Data Source
Figure 1
Figure 2~4
Figure 5
AI summary
The invention relates to a device (1) for drying bulk material (2) with a horizontally arranged base element (4) for receiving the bulk material (2) to be dried and with a supply device (6) for drying air, which is arranged below the base element (4), wherein the base element (4) has a first drying rack (7) and a second drying rack (8), wherein the first drying rack (7) has first profile bars (10) arranged at a first distance (11) from each other and the second drying rack (8) has second profile bars (12) arranged at a second distance (13) from each other, and wherein the first drying rack (7) is arranged at a distance (9) below the second drying rack (8).