Garbage Supply Device With Stirring Middle Shaft
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Solution Overview
Problem
Conventional garbage supply devices cause waste to consolidate and get stuck between feed screws, leading to inefficiencies in conveying waste to gasification furnaces.
Innovation Solution
A garbage supply device with a middle shaft featuring protrusions that stir waste and prevent consolidation, combined with a casing that narrows to maintain a fixed quantity and increasing spiral pitch of feed screws to prevent consolidation, along with a hood for recollecting unburnt gases.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If waste is conveyed using two feed screws installed in parallel, then waste can be supplied at a fixed quantity, but waste consolidates and gets stuck in the casing
Solution Approach 1:
A middle shaft is introduced as an intermediary component between the two feed screws. This middle shaft rotates in the same direction as the feed screws and features protrusions that stir the waste, preventing consolidation while maintaining the fixed quantity supply capability of the parallel feed screw configuration.
Solution Approach 2:
The middle shaft is segmented with multiple protrusions distributed along its length. These protrusions are positioned to interact with waste in different regions, creating localized stirring actions that collectively prevent consolidation throughout the casing while allowing continuous waste flow.
2Quantity of substance
If the casing narrows from upstream to maintain fixed quantity, then waste quantity is controlled, but waste consolidates at the narrowed part
Solution Approach 1:
The protrusions on the middle shaft are strategically positioned and dimensioned to provide localized stirring action specifically at the narrowed part of the casing. This targeted approach addresses the consolidation problem at the critical narrowed section without affecting the overall waste flow control provided by the narrowing geometry.
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
Prevents waste consolidation and ensures efficient conveyance to gasification furnaces by stirring waste with protrusions and maintaining a fixed quantity, while recollecting unburnt gases to prevent scattering.
Implementation Method 1
the waste is stirred by the middle shaft on which the plurality of protrusions are provided and is not excessively supplied in between the two feed screws, the waste can be prevented from being consolidated
Implementation Method 2
A gas in the hood is drawn by suction fans and flow into a downstream appliance
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
A garbage supply device (1), which supplies waste to a gasification furnace (6) that gasifies waste, includes a casing (19), two feed screws (15) provided in the casing, and a middle shaft (16) that is provided between the two supply screws, has a plurality of protrusions (24), and is repeatedly rotated forward or backward.