Modular Pneumatic Waste Conveying System
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Solution Overview
Problem
Existing pneumatic material conveying systems for waste management require upfront construction of infrastructure that may exceed current capacity needs, leading to inefficient resource allocation and potential noise and dust issues, with limited modular expansion capabilities.
Innovation Solution
A modular pneumatic material conveying system that allows for the use of temporary partial-vacuum generators and circulating conveying air to reduce energy consumption and noise, enabling efficient expansion and backup systems, while minimizing outlet air volume and dust problems through efficient air circulation management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a pneumatic material conveying system is built to completion with full capacity infrastructure, then the system can handle future capacity requirements, but the upfront costs are high and resources are allocated inefficiently for current lower capacity needs
Solution Approach 1:
The conveying system is divided into multiple independent subsystems, each with its own partial-vacuum generating apparatus. This allows the system to be implemented in stages, with only the necessary subsystems activated based on current capacity needs, while maintaining the ability to expand to full capacity in the future.
Solution Approach 2:
The system allows dynamic activation and deactivation of individual subsystems based on varying capacity requirements over time. Each subsystem can be independently controlled, enabling the system to adapt its operational capacity to match actual waste generation rates without requiring full infrastructure to be continuously active.
2Reliability
If partial-vacuum generating apparatus operates continuously to maintain system readiness, then the system can respond immediately to material conveyance needs, but energy consumption increases
Solution Approach 1:
Instead of continuous operation, the partial-vacuum generating apparatus operates periodically or on-demand based on actual material conveyance needs. The system can switch between active and standby states, activating the vacuum generator only when material needs to be conveyed, thereby reducing overall energy consumption while maintaining system reliability.
3Productivity
If conveying air is continuously circulated to prevent material accumulation, then material flow is maintained, but outlet air volume and associated dust problems increase
Solution Approach 1:
The system maintains continuous material flow through the conveying pipe by keeping the partial vacuum active during conveyance operations. Conveying air is circulated continuously only when material is being conveyed, ensuring uninterrupted material flow while minimizing unnecessary air circulation that would increase outlet air volume and dust problems.
Solution Approach 2:
The system recycles conveying air back into the system through the circuit configuration, reducing the volume of air that needs to be discharged to the environment. This air recovery approach minimizes outlet air volume and associated dust emissions while maintaining effective conveying air circulation during material transport.
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 solution distributes initial costs over a longer period, reduces energy consumption, minimizes noise and dust, and allows for flexible system expansion, ensuring reliable operation and efficient waste conveyance with reduced infrastructure needs.
Implementation Method 1
means for providing a pressure difference in the conveying pipe at least during the conveyance of the material
Implementation Method 2
a pump device the suction side of which is connected to at least one separator device and further to the conveying pipe on its return side so that at least part of conveying air on the pressure side of the pump is led in the circuit on the supply side of the conveying pipe
Data Source
Figure 1~1a
Figure 2
Figure 3
AI summary
Method in a pneumatic material conveying system, such as in a waste conveying system, which conveying system comprises at least one input point (61) of material, more particularly of waste material, a material conveying pipe (100), which can be connected to an input point (61), and a separating device, in which the material to be conveyed is separated from the conveying air, and also means for achieving a pressure difference in the conveying pipe (100) at least during the conveyance of material. In the method material is conveyed from an input point (61) to an accumulator tank (105) of a subsystem (1), where the material is separated from the conveying air and in a second phase the accumulator tank (105) of the subsystem is emptied.