Apparatus for extending yellow lead production technology and realizing energy-saving preparation of tetrabasic lead sulfate

Abstract

The invention discloses an apparatus for extending yellow lead production technology and realizing energy-saving preparation of tetrabasic lead sulfate. The apparatus comprises a heat insulation storage barrel, an automatic metering device, a circular track, a reaction tank, a centrifuging device and a wastewater collecting barrel; and the heat insulation storage barrel is arranged below the discharging opening of a yellow lead calciner, and is used for storing a yellow lead product discharged from the calciner, the automatic metering device is arranged at the discharging opening of the heat insulation storage barrel, the circular track is supported by a support to form an overhead structure, the circular center (initial feeding point) of the circular track is below the heat insulation storage barrel, and other positions are determined according to the layout of a production workshop. The apparatus has the advantages of simple structure, good practicality, full and effective utilization of the product yellow lead obtained through the yellow lead production technology and the heat obtained after the calcination of the product, realization of low energy consumption, high production efficiency, production cost saving, uniform morphology of the produced product, and recycling and no environment pollution of a generated waste liquid.

Description

technical field [0001] The invention relates to the technical field of yellow dan deep processing, in particular to an energy-saving device for preparing tetrabasic lead sulfate by extending the production process of huang dan. Background technique [0002] At present, the production process of yellow lead is melting → powder making → calcination oxidation → cooling → crushing → packaging. The terminal product yellow lead (PbO) is directly used for sales, and there is no report on the direct extension of the production chain. [0003] The chemical formula of tetrabasic lead sulfate (4BS) is 4PbO·PbSO 4 , equivalent to 4 moles of PbO and 1 mole of PbSO 4 compounds whose main raw materials are PbO and H 2 SO 4 . In the lead-acid battery industry, 4BS is a positive electrode additive, which is one of the components of the positive active material in the battery. Adding an appropriate amount of 4BS in the production process of the positive plate can promote the content of 4B...

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Problems solved by technology

Through a lot of research on the process of synthesizing 4BS by various methods, we found that the process of generating 4BS in the above methods takes a long time, and requires additional heating to consume energy; and the purity of the synthesized 4BS is not enough, especially the 3BS thermal decomposition method, the production cost is high Defects

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