By-product steam hydrogen chloride graphite synthesis furnace with economizer

Abstract

The invention is mainly applied in the technical field of hydrogen chloride synthesis, and in particular relates to a byproduct steam hydrogen chloride graphite synthetic furnace provided with a coal economizer. The byproduct steam hydrogen chloride graphite synthetic furnace provided with the coal economizer comprises a graphite furnace cylinder and a steam pocket, wherein a gas remixer is arranged in the top of the graphite furnace cylinder; an evaporation structure section, a coal economizer section and a cooling structure section which are hermetically connected are arranged at the top of the gas remixer sequentially from bottom to top; the upper part and the lower part of an evaporation section metal structure cylinder body are connected in series with the steam pocket through circulating pipelines; an integrated furnace bottom seal head is arranged at the bottom of the graphite furnace cylinder; a premixing type synthetic furnace lamp holder is arranged on the integrated furnace bottom seal head; an integrated furnace top seal head is arranged at the top of the cooling structure section; and a hydrogen chloride outlet is formed in the integrated furnace top seal head. According to the byproduct steam hydrogen chloride graphite synthetic furnace with the coal economizer, heat energy carried by the hydrogen chloride can be recovered to be used for preheating deionized water of the byproduct steam, the waste heat is utilized more completely and the heat utilization rate is increased; meanwhile, the hydrogen chloride is further cooled, the cooling load is reduced, and the advantages of energy conservation, consumption reduction, complete utilization of the waste heat and high heat utilization rate.

Description

technical field [0001] The invention relates to a by-product steam hydrogen chloride graphite synthesis furnace with an economizer, which is mainly used in the technical field of hydrogen chloride synthesis. Background technique [0002] The existing by-product steam hydrogen chloride synthesis furnaces mainly include steel synthesis furnaces, graphite synthesis furnaces and semi-steel and semi-graphite synthesis furnaces. The basic working principle is: chlorine gas and hydrogen gas enter from the bottom of the furnace, mixed and burned by the lamp head to obtain hydrogen chloride gas. Use cooling water to further cool down to the temperature required by the process, and then discharge it from the furnace top to obtain hydrogen chloride gas. The by-product steam pressure of the steel synthesis furnace is high, but limited by the chemical corrosion temperature range, the heat extraction temperature range is small, and the waste heat utilization rate is low. Graphite synthe...

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Problems solved by technology

The by-product steam pressure of the steel synthesis furnace is high, but limited by the chemical corrosion temperature range, the heat extraction temperature range is small, and the waste heat utilization rate is low

Graphite synthesis furnace, the product does not contain iron ions, the product is pure, but limited by the temperature resistance and strength of the material, the temperature difference of heat extraction is small, and the utilization rate of waste heat is not high

[0003] The existing by-product steam hydrogen chloride synthesis furnaces all have defects such as insufficient utilization of by-product waste heat, low heat exchange efficiency, incomplete chlorine-hydrogen mixing reaction, chloride ions and hydrogen chloride in the product, and low purity.

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