Compaction Assembly With Sealed Side Arms for Leachate Control
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Solution Overview
Problem
Existing compaction assemblies in waste collection containers suffer from uncontrolled leakage of leachate and waste fragments due to slits in the side walls, leading to hygiene issues and mechanical malfunctions, and require larger actuators to maintain thrust, limiting compaction efficiency.
Innovation Solution
A compaction assembly with a pressing blade and hydraulic actuators that operate within a transfer chamber, using side arms and constraint portions to prevent leakage through side walls, and adjustable connection points for actuators to modulate thrust force and stroke.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If connection members and slits are placed in side walls to connect hydraulic actuators with pressing blade, then actuators can be positioned outside transfer chamber, but leachate and waste fragments escape through slits causing hygiene issues and mechanical malfunctions
Solution Approach 1:
A sealed connection system acts as an intermediary between the hydraulic actuators and the pressing blade, allowing force transmission while preventing leakage. The connection members are sealed to the pressing blade and extend through the side walls without requiring open slits, thus mediating between the need for external actuator positioning and the need to prevent waste leakage.
2Object-affected harmful factors
If connection members are placed as high as possible in side walls, then leakage is reduced, but the distance from actuator attachment points to pressing blade axis increases requiring larger actuators
Solution Approach 1:
The connection system allows for optimization of the attachment point position on the pressing blade. By changing the vertical position parameter of the connection members, the system can balance between preventing leakage (higher position) and maintaining effective thrust transmission (lower position closer to the axis), avoiding the need for oversized actuators while still preventing waste fragment escape.
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 leakage of leachate and waste fragments while maintaining effective compaction force, reducing mechanical wear and enhancing compaction efficiency through adjustable thrust modulation.
Implementation Method 1
The compaction assembly (1) comprises a pressing blade (9) movable in the transfer chamber (T) between a first position and a second position in which, in the second position, the pressing blade (9) pushes into the containment box (2) a waste accumulated on a bottom wall (7) of the transfer chamber (T). The compaction assembly (1) further comprises hydraulic actuators (14) operating on the pressing blade (9) to move it between the first position and the second position.
Implementation Method 2
The pressing blade operates between two side walls that delimit the transfer chamber. In particular, a pressing blade is installed inside the chamber while the hydraulic actuators are installed outside it. The blade and the actuators are connected to each other through special slits in the side walls of the transfer chamber, which however lead to the chamber not being effectively isolated from the external environment.
Data Source
Figure 1
Figure 2
Figure 3A~3B
AI summary
Compaction assembly (1) for a material collection container (C), comprising a transfer chamber (T), a pressing blade (9) movable in the transfer chamber (T) between a first position and a second position so as to push an accumulated waste on a bottom wall (7) of the transfer chamber (T) and hydraulic actuators (15) operating on the pressing blade (9) to move it between the first position and the second position. The pressing wall (9) has upper constraint portions (9a) rotatably engaged with the respective side walls (6) of the transfer chamber (T), around a horizontal axis of oscillation (O). The pressing wall (9) also has side arms (9b) each extending from one of the constraint portions (9a) next to the respective side wall (6), on the side opposite the pressure blade (9), and each of the side arms (9b) has a connection end (9d) connected to one of the said hydraulic actuators (14).