Equipment and process for producing sulphuric acid by utilizing calcium sulphate

Abstract

The invention relates to equipment and a process for producing sulphuric acid by utilizing calcium sulphate. The equipment comprises a calcining kiln, a bracket, a hopper, an exhaust port, a discharge port, guide posts, a driving seat, a longitudinal vibration exciter, a transverse vibration exciter and a horizontal slide rail, wherein the calcining kiln is fixed inside the bracket and can move along with the bracket; the 2-4 guide posts are uniformly distributed on the driving seat, and fixedly connected with the driving seat to form a whole; the guide posts are connected with the bracket through damping springs and used for supporting the whole bracket; the longitudinal vibration exciter is fixed on the driving seat and connected with the bracket; the transverse vibration exciter is directly connected with the driving seat; and the driving seat is positioned on the horizontal slide rail. The invention further comprises the process for producing sulphuric acid by utilizing calcium sulphate. As sulphuric acid is produced by utilizing the invention, excessive stacking of material and insufficiency of a decomposition reaction occurring in the raw material calcination stage in the production of sulphuric acid can be avoided.

Description

technical field [0001] The invention relates to a sulfuric acid production equipment and process, in particular to a sulfuric acid production equipment and process using calcium sulfate. Background technique [0002] At present, sulfuric acid production in my country mostly uses sulfur or pyrite as raw materials. With the depletion of sulfur and pyrite resources, the prices of sulfur and pyrite raw materials are also rising, and the production cost of sulfuric acid is gradually increasing. Looking for new raw materials, A new process to produce sulfuric acid is imperative. [0003] CN101513993A disclosed a technology for producing sulfuric acid utilizing magnesium sulfate on August 26, 2009, mainly adopting the technology of preheating magnesium sulfate raw material by suspending calcination and sulfur dioxide flue gas recycling, and introducing new fuel in the production process , bringing foreign impurities. In addition, although this process solves the problem of insuffic...

AI Technical Summary

Problems solved by technology

[0003] CN101513993A disclosed a technology for producing sulfuric acid utilizing magnesium sulfate on August 26, 2009, mainly adopting the technology of preheating magnesium sulfate raw material by suspending calcination and sulfur dioxide flue gas recycling, and introducing new fuel in the production process , bringing foreign impurities. In addition, although this process solves the problem of insufficient reaction to a certain extent, the cost is high, and dead ends are prone to appear in the reaction stage.

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