Grain Dryer with Segmented Air Chambers for Dual-Mode Operation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional grain dryers do not effectively utilize the entire dryer main body in both continuous flow and circulation drying modes, leading to inefficiencies and underutilization of the storage section during continuous flow drying.
Innovation Solution
The grain dryer is designed with a hot air chamber and exhaust air chamber divided into upper and lower independent spaces, allowing for separate air supply and discharge, enabling the entire dryer main body to be used as a drying section in both modes, with optional use of spaces as storage or cooling sections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the grain dryer uses a single drying section configuration, then the structure is simple, but the dryer main body cannot be effectively utilized in both continuous flow and circulation drying modes
Solution Approach 1:
The hot air chamber and exhaust air chamber are divided into multiple independent spaces (first space, second space, third space, fourth space) arranged in vertical layers. Each space can be independently controlled to function as either a drying section or a storage section, enabling the system to adapt to different drying modes without increasing overall structural complexity.
Solution Approach 2:
Each chamber space is designed to serve dual functions: it can operate as a drying section when hot air is supplied, or as a storage section when hot air supply is stopped. This multi-functionality allows the same structural components to be effectively utilized in both continuous flow drying mode (all spaces as drying sections) and circulation drying mode (some spaces as drying sections, others as storage sections).
2Productivity
If hot air is supplied to all chamber spaces, then drying capacity is maximized, but the storage function is lost in circulation drying mode
Solution Approach 1:
The system employs dynamic control of hot air supply to each chamber space based on the selected drying mode. In continuous flow drying mode, hot air is supplied to all spaces (first, second, third, fourth) to maximize drying capacity. In circulation drying mode, hot air supply is selectively applied only to designated drying sections while other spaces serve as storage sections, thereby maintaining both high productivity and adaptability.
3Reliability
If the dryer operates in circulation drying mode with storage section, then grain tempering is improved, but the upper portion of dryer main body is underutilized during continuous flow drying
Solution Approach 1:
Different vertical layers of the dryer main body are assigned different functions based on local requirements. The upper spaces (first and second spaces) can serve as storage sections for grain tempering, while lower spaces (third and fourth spaces) serve as drying sections. This local differentiation allows grain quality control in circulation mode while maintaining high utilization in continuous flow mode.
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 allows for efficient use of the entire dryer main body in both continuous flow and circulation drying modes, reducing downtime and uneven drying, and eliminating the need for initial circulation operations, thereby enhancing drying efficiency and productivity.
Implementation Method 1
hot air generated by a hot air generator is supplied
Implementation Method 2
hot air supplied from the hot air chamber, the hot air used to dry the grains being discharged from the exhaust air chamber
Implementation Method 3
an blowing port of a hot air blower communicates with the intake duct, so that hot air from the blower is adapted to be supplied through the intake duct to the hot air channels
Data Source
AI summary
There is provided a grain dryer in which the whole of a dryer main body can be made effective use of whether the grain dryer is used in either a circulation drying mode or in a continuous flow drying mode, the grain dryer including a dryer main body into which grains are loaded, a hot air chamber provided at one side of the dryer main body to supply hot air into an interior of the dryer main body, and an exhaust air chamber provided at the other side of the dryer main body to discharge hot air from the interior of the dryer main body, wherein the hot air chamber and the exhaust air chamber each have a plurality of upper and lower independent spaces, the corresponding spaces of the hot air chamber and the exhaust air chamber being disposed to be positioned substantially at a same height, and wherein the individual spaces of the hot air chamber communicate with corresponding hot air generators to execute separate supplies of hot air generated by the hot air generators into the individual spaces, and a height range in the interior of the dryer main body into which hot air is supplied from the spaces of the hot air chamber is defined as a drying section to dry grains loaded into the interior of the dryer main body.