Humic Acid Salt Production via Solid-Phase Mixer
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Solution Overview
Problem
Traditional methods for producing humic acid salts are costly and environmentally harmful due to complex unit operations and significant water usage, requiring large amounts of gas and steam for fluidization and temperature maintenance.
Innovation Solution
A high-speed intensive mixer is used to facilitate chemical reactions between alkali hydroxides and humic acid in a solid-phase, fluidized-bed reactor, eliminating the need for extensive gas use and steam, and achieving rapid reaction and drying through friction and exothermic heat, thereby simplifying the process and reducing environmental impact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If traditional fluidized bed methods are used with large amounts of gas and steam, then temperature maintenance and fluidization are achieved, but energy consumption and environmental impact increase significantly
Solution Approach 1:
The patent replaces the traditional thermal field (steam heating) and gas flow system with a mechanical agitation system. The high-speed mixer (200-2000 RPM) provides both mixing and heating through mechanical energy input, eliminating the need for separate steam heating systems and large amounts of process steam while maintaining reaction temperature.
Solution Approach 2:
The high-speed mixer serves multiple functions simultaneously: it provides fluidization of solid particles, ensures uniform mixing of reactants, maintains reaction temperature through mechanical energy input, and facilitates heat transfer. This multi-functionality replaces what traditionally required separate systems for each function, significantly reducing energy consumption.
2Manufacturing precision
If traditional multi-step unit operations are used, then complete reaction and product formation are achieved, but production time and process complexity increase
Solution Approach 1:
The patent combines multiple traditional unit operations (mixing, heating, reacting, and drying) into a single integrated high-speed mixing process. The intense mechanical agitation creates conditions where all these operations occur simultaneously in one reactor vessel, reducing production time from hours to minutes while maintaining product quality through controlled reaction conditions.
Solution Approach 2:
The high-speed mixing process maintains continuous and intense contact between reactants throughout the reaction period, ensuring complete reaction in a short time. The continuous mechanical energy input ensures uninterrupted mixing and heat transfer, eliminating idle times between traditional batch operations and achieving rapid product formation.
3Reliability
If traditional methods with extensive water usage are used, then reactants are dissolved and reactions proceed, but environmental pollution and water consumption increase
Solution Approach 1:
The patent changes the physical state parameters of the reaction system by using solid-phase reactants and mechanical agitation instead of aqueous solutions. The high-speed mixing creates sufficient contact and energy for complete reaction between solid particles without requiring water as a solvent, thereby eliminating water consumption and associated environmental pollution while maintaining reaction completeness.
4Device complexity
If high-speed agitation is used instead of gas fluidization, then equipment complexity and gas consumption are reduced, but mixing efficiency must be maintained
Solution Approach 1:
The patent employs dynamic high-speed mixing (200-2000 RPM) to create intense particle movement and contact, replacing static or low-energy gas fluidization systems. The variable speed capability allows optimization for different reaction conditions, ensuring high mixing efficiency while using simpler equipment without complex gas distribution systems, thereby reducing both equipment complexity and operational costs.
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 significantly reduces production time, energy consumption, and environmental impact by completing reactions in less than 20 minutes with minimal additional water, achieving high-quality humic acid salts while eliminating the need for subsequent drying and grinding steps.
Implementation Method 1
achieving rapid reaction and drying through friction and exothermic heat
Implementation Method 2
achieving rapid reaction and drying through friction and exothermic heat
Implementation Method 3
The present invention only utilizes high-speed agitation, instead of large amounts of gas, to fluidize solid powder
Implementation Method 4
achieving rapid reaction and drying through friction and exothermic heat
Data Source
AI summary
The present invention utilizes a high-speed intensive mixer in a fluidizing-type, solid-phase, neutralization reactor to blend solid-state alkali hydroxide with any humic acid sources. The final product is a dry humic acid salt. The purpose of this innovative method is to eliminate a series of complicated unit operations commonly employed by the traditional process. These removed steps may include dissolving caustic soda, mixing in a paste-like formation, extrusion, granulation, drying, and grinding, etc. The invention contributes to a simplified flowsheet, resulting in sharply reduced equipment investment, plant space, and labor and energy costs. All of these factors coupled with increased productivity will drastically lower the overall production cost. Also, the reduction of dust pollution will greatly minimize the impact in environmental protection and safety issues.