A melting and gasifying device for zinc

Abstract

A melting and gasifying device for zinc relates to the production and manufacture field of zinc oxide. The melting and gasifying device for zinc provided in the invention is ingeniously structured, high in combustion rate of natural gas, fast in heating up speed inside the device, high in processing efficiency and low in cost. The device comprises a fuel accessing unit, a heating unit, a heat transfer unit and a burning agent accessing unit. The fuel accessing unit comprises a nature gas source and a fuel pipe communicated with each other; the heating unit comprises a heating pool, a heat source pipe, a plurality of melting crucibles and a plurality of gasifying crucibles; the burning agent accessing unit comprises a blower and a burning agent pipe which are communicated with each other; and the heat transfer unit comprises a cool air pipe and a heating air pipe, the inlet of the cool air pipe is communicated with the burning agent pipe, and the outlet of the cool air is communicated with the fuel pipe. The melting and gasifying device for zinc as a whole has the advantages of a reduced device size, low costs, energy-saving and emission reduction, an improved combustion rate and a faster heating speed.

Description

technical field [0001] The invention relates to the field of zinc oxide production and manufacturing, in particular to the improvement of a zinc melting and gasification device at the initial stage of a zinc oxide production line. Background technique [0002] At present, the production and processing technology of zinc oxide is very mature, and most of them are processed according to the following process route: first, the zinc ingot is melted into zinc water, then the zinc water is heated to gasify, and finally the gaseous zinc is oxidized and recovered. Among them, the melting and gasification of zinc is one of the key processes in the production process. Due to the high melting point and boiling point of zinc, the requirements for heat sources are extremely high. [0003] A traditional device such as a document titled "Zinc Gasifier" announced by the National Bureau on January 1, 1997, with an application number of "95240548.2", disclosed the structural shape of a tradit...

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Problems solved by technology

[0006] However, with the development of social science and technology, the purity of natural gas is extremely high, and a large amount of external air must be introduced as a combustion aid during use. If the above-mentioned zinc oxide production device is used, a certain proportion of If the natural gas and combustion aid are used, the processing efficiency will inevitably lead to the problem of too large equipment volume and high cost; and considering the reduction of cost and equipment volume, it will cause the temperature in the device to rise too slowly, The problem of extremely low processing efficiency

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