Cleaning composition, chemical-mechanical process, and continuous hydrodynamic system for contaminant control in industrial machines
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Solution Overview
Problem
Existing methods for treating clothing in pulp and paper machines are inefficient and environmentally harmful due to high steam consumption, chemical overuse, and environmental pollution, and they fail to effectively remove hydrophobic organic contaminants like pitch and stickies.
Innovation Solution
A chemical-mechanical process using nanobubbles, oxidizing formulations, and surfactant formulations, applied without steam, to create a synergistic cleaning effect that optimizes chemical consumption and energy efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If steam and high pressure are used to activate cleaning chemicals, then cleaning power is improved, but energy consumption and steam demand increase
Solution Approach 1:
The patent changes the activation parameters from thermal (steam/heat) and mechanical (high pressure) to cavitation-based nanobubble generation. This is achieved by using cavitation equipment to produce nanobubbles that activate the cleaning chemicals at ambient or lower temperatures, fundamentally altering the activation mechanism from thermodynamic to cavitation-based
Solution Approach 2:
The patent replaces the thermodynamic system (steam injection pump, heat exchanger) with a hydrodynamic system based on cavitation. The mechanical energy of collapsing nanobubbles substitutes for the thermal energy of steam, providing a different physical mechanism for activating cleaning chemicals
2Reliability
If steam-based thermodynamic equipment is used, then cleaning effectiveness is improved, but equipment complexity and steam infrastructure requirements increase
Solution Approach 1:
The patent extracts and removes the complex thermodynamic equipment (steam injection pump, heat exchanger) from the cleaning system, retaining only the essential cavitation equipment to generate nanobubbles. This simplifies the overall system by eliminating the steam generation and delivery infrastructure while maintaining cleaning effectiveness
Solution Approach 2:
The patent applies cleaning chemicals locally through nanobubble-mediated delivery to the clothing surface, rather than requiring a complex steam distribution system. The cavitation equipment generates nanobubbles that deliver activated chemicals directly to the contamination sites on the clothing
3Reliability
If high pressure and temperature are applied to clean clothing, then contaminant removal is improved, but clothing wear and damage increase
Solution Approach 1:
The patent changes the cleaning parameters from high temperature and high pressure to ambient temperature with cavitation activation. The nanobubbles provide the necessary energy for contaminant removal through their collapse, eliminating the need for harsh thermal and mechanical conditions that damage clothing fibers
Solution Approach 2:
The patent introduces nanobubbles as an intermediary between the cleaning chemicals and the clothing surface. The nanobubbles mediate the delivery and activation of chemicals, providing a gentler mechanism for contaminant removal that protects the clothing from direct exposure to harsh high-pressure and high-temperature conditions
4Reliability
If more chemicals are used to achieve deep cleaning, then cleaning thoroughness is improved, but chemical consumption and environmental impact increase
Solution Approach 1:
The patent changes the activation method of chemicals from thermal/pressure-based to cavitation-based nanobubble activation. This enhancement in activation efficiency allows the same cleaning thoroughness to be achieved with lower chemical concentrations, as the nanobubbles provide additional energy and improve chemical delivery to the contaminant sites
Solution Approach 2:
The nanobubbles self-activate the cleaning chemicals through their cavitation collapse, eliminating the need for external steam or high-pressure activation. This self-service mechanism improves chemical efficiency by ensuring that the chemicals are activated only at the point of contact with contaminants, reducing overall chemical consumption
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 process achieves similar or superior cleaning efficiency to traditional steam-based methods while reducing steam consumption, chemical usage, and environmental impact, leading to extended machine lifetimes and reduced operational costs.
Implementation Method 1
equipment that conducts cavitation, thus producing nanobubbles that, jointly with the chemicals, are capable of performing deeper, more advanced cleaning with a synergistic effect
Data Source
AI summary
Cleaning compositions, chemical-mechanical processes, and a system for treating clothing used in machines of the pulp and paper, textile, tile production, and tanning industries and other industrial processes, without using steam, for the purpose of cleaning off the hydrophobic organic and inorganic contaminants found in the manufacturing processes of the pulp and paper industry, known as pitch, stickies, and others, originating in virgin pulp and scrap paper. The compositions are made up of liquid and gas reagents and involve oxidizing formulations, surfactants, and nanobubbles, employed in a chemical-mechanical process that uses nanobubble production equipment, which, jointly with chemicals, provides deeper, more advanced cleaning, leading to higher energy efficiency and an optimized consumption of chemicals.