Steel mill waste gas emission environment protection treatment system

Abstract

The invention relates to a steel mill waste gas emission environmental protection treatment system, which comprises a filtration mechanism and a liquefaction mechanism, the right end of the filtrationmechanism is connected with the liquefaction mechanism, and the lower end of the liquefaction mechanism is installed on the existing working ground; the filtration mechanism comprises an L-shaped pipe, a supporting base, a first pipeline, a first protruding block, a first bolt, a second pipeline, an air inlet pipe, a second protruding block, a second bolt and a filtering and cleaning set. The design concept of a filtering-cleaning integrated structure is adopted for environment-friendly treatment of steel mill waste gas emission; the initial end and the tail end of the waste gas flowing pathare each provided with a structure with a filtering function so that waste gas can be subjected to multi-stage filtering and impurity adsorption treatment, meanwhile, a plurality of cleaning structures are arranged so that the structures with impurities attached to the surface area can be removed, and the situation that operation between the structures is affected due to excessive impurities accumulated in the system is reduced.

Description

Technical field [0001] The invention relates to the technical field of steel-making waste gas treatment, in particular to a steel-making plant waste gas emission environmental protection treatment system. Background technique [0002] Steel mills are heavy industry, secondary industry, manufacturing, capital-intensive industries, fixed assets, factory types, and raw materials for steel mills are iron ore, coal, charcoal, etc., which are supplied by the mining industry. Because steel plants are the production of strategic materials, most countries are state-owned enterprises. Their main task is to desulfurize, dephosphorize, decarburize, and deoxidize molten iron, and then cast molten steel into billets. Steelmaking refers to the use of pig iron to release Smelt according to a certain process in the steelmaking furnace, control the carbon content (generally less than 2%), eliminate harmful elements such as P, S, O, and N, retain or increase beneficial elements such as Si, Mn, Ni, ...

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Problems solved by technology

[0003] 1. In the waste gas treatment method, it is usually considered to filter and adsorb the impurities in the waste gas. In this process, the external power drive structure is basically used, and the utilization of the heat energy of the waste gas itself is often ignored. At the same time, the waste gas contains The forms of impurities are different, and a relatively simple filter structure is commonly used, so that the degree of filtration and adsorption of impurities in the exhaust gas is low;

[0004] 2. Part of the impurities entrained by the exhaust gas will accumulate on the inside of the channel and the filter structures contained in the channel. The accumulated impurities will form a thicker impurity layer after a long time, and the impurity layer is easy to operate and filter between structures. The filtering effect of the structure is affected, and the common exhaust gas channel adopts an integrated structure, which is not conducive to cleaning the channel regularly

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