Enclosed dissociation desulfurization reactor and system

Abstract

The invention discloses a closed type desulfuration and dissociation reactor which comprises a desulfuration reaction tank body, a stirring mechanism, and a feed port and a discharge port which are positioned two axial end parts of the tank body respectively, wherein the stirring mechanism comprises a stirrer and a stirring transmission mechanism; the discharge port comprises a main feed output and an auxiliary feed outlet; the reactor also comprises a heating device; the heating device comprises a heater and a temperature control system; the desulfuration reaction tank body is a rotatable horizontal type revolving drum device and mainly consists of a horizontal type revolving drum, a revolving drum supporting mechanism and a revolving drum transmission mechanism; a diachylon material in the revolving drum is stirred through the stirrer under the drive of the transmission mechanism; the desulfurated diachylon is output from the main feed outlet; and the byproduct produced through thermolysis is output from the auxiliary feed outlet. The closed type desulfuration and dissociation reactor can improve the desulfuration effect of the diachylon, is favorable for quality stability of subsequent electrolytic procedure, can greatly reduce the cost for desulfuration and improve the production efficiency.

Description

technical field [0001] The invention relates to a dissociation reactor and its system, in particular to a closed dissociation reactor and its system. Background technique [0002] Among the existing waste lead-acid battery lead recovery technologies, there are all-wet electrolytic reduction technology, fire reduction technology and wet-fire combined technology, and desulfurization is an important link in all waste lead-acid battery lead recovery technologies. Desulfurization methods include pre-desulfurization methods and simultaneous desulfurization methods. [0003] At present, more than 90% of waste lead-acid batteries are recovered by using the method of synchronous desulfurization and reduction. Such as fire method reverberatory furnace (grid lead and lead paste) direct mixed smelting desulfurization, reduction; wet solid phase electrolysis direct chemical replacement desulfurization, reduction, etc. The mixed smelting of the reverberatory furnace (grid lead and lead ...

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Problems solved by technology

[0010] Both of the above-mentioned devices have the disadvantages of consuming a large amount of expensive displacer materials to make the desulfurization cost high and the production efficiency low: (1) the pre-desulfurization technology consumes sodium carbonate or sodium hydroxide and replaces it with by-product sodium sulfate, and the recovery cost is high, Low value and small market utilization space; (2) The reverberatory furnace desulfurization method of high-temperature iron scrap desulfurization consumes a large amount of iron scrap and other raw materials to produce slag that becomes solid hazardous waste and sulfur dioxide gas that cannot be replaced, causing serious environmental pollution and waste of resources; the sulfur in the lead paste and the dilute acid brought in by the battery have not achieved the most effective recycling

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