Fish-scale flaky semi-straight-pipe coke oven ascending pipe waste heat recovery apparatus

Abstract

The invention provides a fish-scale flaky semi-straight-pipe coke oven ascending pipe waste heat recovery apparatus. The fish-scale flaky semi-straight-pipe coke oven ascending pipe waste heat recovery apparatus consists of a barrel, a semi-annular casing pipe, a scale-shaped semi straight pipe or overlapped semi-straight pipe, a water inlet pipe and a water outlet pipe. The inner wall of an ascending pipe is coated with a high-temperature-resisting coating, so that the coking phenomenon of the ascending pipe in the heat exchanging process can be effectively alleviated. By adopting the sale-shaped semi-straight pipe and the overlapped semi-straight pipe, the waste heat of raw coke oven gas can be more efficiently utilized in the heat exchanging process of the raw coke oven gas. The fish-scale flaky semi-straight-pipe coke oven ascending pipe waste heat recovery apparatus is simple in structure, low in production cost, significant in heat exchanging effect and significant to the energyconservation and emission reduction.

Description

technical field [0001] The invention belongs to the technical field of waste heat recovery, in particular to a coke oven riser waste heat recovery device. Background technique [0002] In recent years, with the increasing international competition, the efficient use of energy has become more and more important. Therefore, strengthening energy conservation management and developing and researching waste heat recovery technology are important ways to save energy and reduce consumption in our country. In the coking process, the heat entering the riser from the carbonization chamber accounts for about 36% of the total coking consumption, and the temperature of the high-temperature raw gas entering the riser of the coke oven is about 700°C. Therefore, the research on waste heat recovery technology of high temperature raw gas is particularly important. [0003] In the 1970s, my country independently developed the rising tube vaporization cooling technology, which was first appli...

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Problems solved by technology

[0003] In the 1970s, my country independently developed the rising tube vaporization cooling technology, which was first applied in Shougang and Taiyuan Iron and Steel. Water leakage problem, a serious safety hazard

In the 1980s, Japan developed heat transfer oil jacket technology, which is similar in structure to my country's vaporization cooling technology. pollution problem

At the beginning of this century, my country developed a separate heat pipe technology, but it still has not solved the problem of coking and clogging of raw gas. Long-term use will make the heat transfer effect worse, and seriously affect the service life of the riser. ,increase cost

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