Air Scrubber Positioned Above Manure Cellar
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Solution Overview
Problem
Existing livestock sheds with air-scrubbing devices often require complex constructions to prevent leaks and ensure safety, which is unnecessary and inefficient.
Innovation Solution
A livestock shed design with a permeable floor, a liquid-tight manure cellar, and an air scrubber positioned directly above the cellar, where the air scrubber rests on an extended portion of the manure cellar, providing a simple, compact, and safe structure. The air scrubber includes an air inlet connected directly to the manure cellar, reducing pressure drop and allowing leaks to be contained within the manure cellar, eliminating the need for additional foundations and complex piping.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If an air scrubber is installed in a livestock shed to clean polluted manure cellar air, then ammonia removal effectiveness is improved, but construction complexity increases due to required leak prevention measures and additional foundations
Solution Approach 1:
The air scrubber is merged with the manure cellar structure by positioning it directly above the cellar and utilizing the cellar's extended portion as both foundation and leak containment vessel. This integration eliminates the need for separate foundation construction and complex leak prevention systems, as the manure cellar itself serves dual purposes: waste collection and air scrubber support/containment.
Solution Approach 2:
The manure cellar is designed with an extended portion that serves multiple functions: it acts as the foundation for the air scrubber, provides leak containment for scrubbing liquid, and maintains its original function of collecting excretory products. This multi-functionality reduces the need for additional structures and simplifies the overall construction.
2Reliability
If complex construction measures are implemented to prevent leaks in the air scrubbing system, then safety is improved, but manufacturing cost and construction simplicity deteriorate
Solution Approach 1:
The manure cellar automatically serves as the leak containment system for the air scrubber. If leaks occur in the air scrubber or scrubbing liquid circuit, the liquid naturally flows into the already-existing liquid-tight manure cellar, which is designed to contain such substances. This self-service approach eliminates the need for additional complex leak prevention structures.
Solution Approach 2:
The extended portion of the manure cellar acts as an intermediary containment zone between the air scrubber and the external environment. It provides a safe intermediate space that can hold leaked scrubbing liquid or ammonia, preventing direct release into the environment while simplifying the overall containment design.
3Ease of manufacture
If the air scrubber is positioned directly above the manure cellar on an extended portion, then foundation requirements are simplified, but the structural design complexity increases
Solution Approach 1:
The manure cellar is extended in the vertical dimension beyond the shed walls, creating an accessible portion above ground level. This dimensional extension allows the air scrubber to be positioned directly above the cellar without requiring separate foundation work at ground level, while the extended portion's simple geometric form minimizes structural design complexity.
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 design results in a safer, more cost-effective, and simpler construction that effectively contains leaks and reduces the risk of environmental contamination, while allowing for efficient ammonia removal and adaptation to different animal compartments.
Implementation Method 1
manure cellar air containing ammonia and the like is passed through a column with acidified scrubbing liquid, so that the ammonia in the manure cellar air reacts to form dissolved ammonium
Implementation Method 2
the ammonia in the manure cellar air reacts to form dissolved ammonium
Implementation Method 3
a floor which is at least partially permeable to excretory products from the livestock animals
Data Source
Figure 1~2
AI summary
Livestock shed for keeping livestock animals, and comprising a shed building for keeping the livestock animals, having a floor which is at least partially permeable to excretory products from the livestock animals, a liquid-tight manure cellar for collecting excretory products which is situated at least partly under the floor, and an air scrubber connected to the manure cellar and configured to at least partly clean polluted manure cellar air, wherein the air scrubber is provided directly above the manure cellar.