Mixing Tower Hopper Anti-Clogging Control
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Solution Overview
Problem
Existing loading systems for cement and asphalt conglomerates often experience uncontrolled material loading, leading to partial or total blocking of the conveyor hopper, resulting in interrupted operations and increased costs due to the complexity of clearing blockages.
Innovation Solution
A mixing tower with a lifting and unloading system featuring a supporting structure, a containing element, and a drawing element that moves along a predetermined pathway, coupled with a motor and transmission system to prevent overloading and clogging, utilizing a counterweight and anti-clogging device regulated by sensors to manage material flow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If material is loaded into the hopper without controlled flow regulation, then loading speed increases, but hopper blocking occurs causing operational interruptions
Solution Approach 1:
The patent implements a dynamic flow regulation system where the mixer outlet is equipped with a closing element that can be actively positioned to control material flow. The system transitions from static, uncontrolled loading to dynamic regulation based on real-time hopper fill level detection, allowing the loading speed to adapt to current operational conditions and prevent blocking while maintaining high productivity.
Solution Approach 2:
The patent employs a feedback mechanism through sensors (such as load cells or level sensors) that continuously monitor the hopper's fill level or material flow conditions. This feedback is processed by a control unit that automatically adjusts the closing element position to regulate material flow, creating a closed-loop control system that prevents hopper blocking while optimizing loading speed.
2Ease of operation
If manual intervention is used to clear hopper blockages, then hopper can be freed, but operational downtime increases and labor costs rise
Solution Approach 1:
The patent implements a self-service system where the automated flow regulation mechanism prevents hopper blockages before they occur. By continuously monitoring hopper fill levels and automatically adjusting the mixer outlet closing element, the system eliminates the need for manual intervention to clear blockages, making the system self-regulating and preventing the condition that would require manual clearing in the first place.
Solution Approach 2:
The patent applies preliminary action by detecting hopper fill levels in advance using sensors and proactively regulating material flow before blockage occurs. The control system anticipates potential blocking conditions and adjusts the closing element position preemptively, preventing the formation of blockages that would otherwise require manual clearing operations.
3Reliability
If automated flow regulation is implemented, then hopper blocking is prevented, but system complexity increases
Solution Approach 1:
The patent integrates multiple functions into the existing mixer and hopper structure. The closing element on the mixer outlet serves both as a flow control mechanism and as part of the normal mixing and discharge operation. The control unit and sensors are incorporated into the existing structural framework, allowing the automated regulation system to perform multiple roles without requiring entirely separate components, thereby reducing overall system complexity.
Solution Approach 2:
The patent introduces a closing element as an intermediary component between the mixer and hopper that mediates material flow. This intermediate component provides precise flow control without requiring complex mechanisms in either the mixer or hopper themselves. The closing element acts as a simple yet effective mediator that regulates material passage based on control signals, simplifying the overall control architecture while achieving reliable flow regulation.
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
The system ensures reliable and efficient loading, minimizing downtime and labor costs by preventing hopper overloading and automatically regulating material flow to maintain optimal operation.
Implementation Method 1
a counterweight and anti-clogging device regulated by sensors to manage material flow
Data Source
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AI summary
A mixing tower (100) is described, for production of cement conglomerates or asphalt conglomerates, having a loading system comprising a supporting structure (2), a mixer (201) borne by the supporting structure (2), a hopper (103) underlying the mixer (201). The tower bears a containing element for lifting the aggregate material which is moved by two parallel chains.