Plasma Waste Gas Purification for Textile Dyeing

The patent replaces the traditional water spraying mechanical system with a plasma field-based treatment system. The plasma generator creates high-energy plasma fields that decompose organic pollutants without requiring water injection, thereby eliminating the safety hazards of water spraying while maintaining temperature control and purification effectiveness.

The patent changes the fundamental parameter of waste gas treatment from thermal/chemical reaction (water spraying) to plasma field energy input. By controlling plasma power and exposure time, the system achieves pollutant decomposition without the side effects of water-based systems, resolving the contradiction between temperature reduction and device reliability.

The plasma field generates highly reactive oxygen species and free radicals that act as strong oxidants, completely decomposing organic pollutants including odor-causing compounds. This accelerated oxidation process achieves thorough removal of harmful factors while maintaining high purification efficiency, unlike traditional methods that only partially treat pollutants.

The plasma generator operates in periodic pulses, creating repeated high-energy bursts that progressively decompose pollutants. This periodic action ensures complete breakdown of complex organic molecules into simple substances, effectively removing odors and smells while maintaining high overall purification efficiency.

The patent converts the harmful high-temperature waste gas into a beneficial resource by using its thermal energy to preheat incoming waste gas or generate steam for industrial use. The plasma treatment then decomposes pollutants in this preheated gas, transforming what would be harmful emissions into useful energy while eliminating environmental pollution and health hazards.

The system recovers thermal energy from waste gas before discharge by passing it through heat exchangers that transfer heat to incoming gas streams or water systems. This energy recovery process reduces overall energy consumption while the plasma field simultaneously removes harmful pollutants, achieving both energy conservation and pollution prevention.

The patent extracts and eliminates the complex water injection, heating, and multiple treatment stage systems by replacing them with a single plasma generator unit. This extraction of unnecessary components simplifies the overall system while maintaining or improving pollutant removal effectiveness, as the plasma field provides comprehensive treatment in one integrated device.

The plasma generator serves multiple functions simultaneously: it decomposes organic pollutants, controls waste gas temperature, eliminates odors and smells, and can generate useful byproducts. This multi-functionality replaces what would traditionally require multiple separate devices, reducing system complexity while enhancing overall purification effectiveness.