Production system for preparing tin dioxide by gasification

Abstract

The invention relates to a device for preparing stannic oxide with a gasification method, in particular to a production system for preparing stannic oxide with a gasification method. The system comprises a tin ingot melting and oxidizing integrated furnace and a secondary oxidation chamber which is connected with the integrated furnace and used for secondarily oxidizing oxide discharged from the integrated furnace, wherein the secondary oxidation chamber is communicated with a sedimentation and cooling barrel; and stannic oxide discharged from the cooling barrel is collected by a bag collector, and an exhaust fan is arranged on the collector. The melting and oxidizing integrated furnace and the secondary oxidation chamber are used for sufficiently oxidizing tin, and the quality of a produced product is better; secondarily, melting and oxidizing of tin are performed in the same furnace, and different burners can be arranged in burning space according to different temperatures required by melting and oxidizing, so that energy consumption is effectively saved; and again, the production system is simpler and can perform practice production.

Description

technical field [0001] The invention relates to equipment for preparing tin dioxide by a gasification method, in particular to a production system for preparing tin dioxide. Background technique [0002] Tin dioxide is widely used in the production of electrode materials, conductive oxide films, glass industry, electronics industry, and ceramics industry. At present, the production of tin dioxide mainly includes wet method and fire method. The wet method is mainly nitric acid method, which consumes a lot of nitric acid, causes serious environmental pollution, high tin consumption and low product purity. In addition, the wet method includes sol-gel method, gel-combustion method, chemical precipitation method, etc. to produce nano-scale tin dioxide. The wet method requires drying, calcination and other processes in production, so the energy consumption is also relatively large. The current fire method is mainly the gasification method. Although it solves the problem of pollut...

AI Technical Summary

Problems solved by technology

At present, the production of tin dioxide mainly includes wet method and fire method. The wet method is mainly nitric acid method. This method consumes a lot of nitric acid, causes serious environmental pollution, high tin consumption and low product purity.

In addition, the wet method also includes sol-gel method, gel-combustion method, chemical precipitation method, etc. to produce nano-scale tin dioxide. The wet method requires drying, calcination and other processes in production, so the energy consumption is also relatively large

The current fire method is mainly the gasification method. Although it solves the problem of polluting gas in production, due to the limitation of oxidation equipment, not only the production is discontinuous, the production equipment is more complicated, but also a large amount of heat loss is generated, and the product quality is not good enough.

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