Sulfur hexafluoride adsorbent recovery treatment system and method based on ultrasonic cavitation effect

Abstract

The invention provides a sulfur hexafluoride adsorbent recovery treatment system based on ultrasonic cavitation effect, and the sulfur hexafluoride adsorbent recovery treatment system comprises a reaction box and a feeding unit. The reaction box comprises a reaction chamber I and a reaction chamber II positioned directly below the reaction chamber I. A partition plate I for isolating the reactionchamber I and the reaction chamber II is arranged between the reaction chamber I and the reaction chamber II. The feeding unit is communicated with the reaction chamber I and is used for feeding a sulfur hexafluoride adsorbent to be cleaned into the reaction chamber I. A liquid inlet is arranged at the upper part of the side wall of the reaction chamber I. The reaction chamber I is also provided with a closable opening for taking out the cleaned sulfur hexafluoride adsorbent. According to the invention, the sulfur hexafluoride adsorbent is efficiently cleaned by utilizing the ultrasonic cavitation effect, and a cleaned waste liquid is subjected to harmless treatment by utilizing the ultrasonic cavitation effect, so that a discharged waste liquid completely meets the discharge standard, andthe sulfur hexafluoride adsorbent is automatically cleaned. The cleaning efficiency is high, the energy consumption is low, the cost is low, and the environment is protected.

Description

technical field [0001] The invention relates to the technical field of sulfur hexafluoride adsorbent recovery, in particular to a sulfur hexafluoride adsorbent recovery and treatment system and method based on ultrasonic cavitation effect. Background technique [0002] The widespread use of sulfur hexafluoride insulation equipment in power systems has made the non-toxic and environmentally friendly treatment of sulfur hexafluoride adsorbents a problem that cannot be ignored by current power companies. The current research on thermal regeneration treatment technology for sulfur hexafluoride adsorbent shows that in order to completely desorb the adsorbate in sulfur hexafluoride adsorbent, it is necessary to heat the adsorbent at 180-200 degrees Celsius for more than 2 hours. The thermal regeneration treatment technology method and the finished product of the device consume a lot of energy, the economic cost is high, and the treatment efficiency is not high; Lead to the proble...

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Problems solved by technology

Chemical regeneration methods include wet oxidation regeneration method and Fenton oxidation regeneration method, etc. The wet oxidation regeneration method has higher requirements for equipment, and the Fenton oxidation regeneration method will only have a better regeneration effect under the condition that the adsorbate can be mineralized; the biological regeneration method It is only suitable for organic adsorbents that are easy to be biodegraded and have adsorption reversibility and easy desorption, and the cycle is long, so its application has limitations; microwave radiation method is a new regeneration method that has been studied more, but its practical application is relatively small; Solvent regeneration method has low regeneration efficiency, and only the transfer of pollutants is not completely removed; while thermal regeneration method has low selectivity for adsorbate and high regeneration rate, but it consumes a lot of energy and has high economic cost, and the treatment efficiency is low. high

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