Novel sucking-and-blowing type secondary flue gas gathering apparatus for converter

Abstract

The invention relates to a novel sucking-and-blowing type secondary flue gas gathering apparatus for a converter. The apparatus comprises sucking and blowing devices respectively arranged at two sides of a steel and slag transport channel and a gathering cover arranged on the converter, wherein the gathering cover is communicated with an exterior dedusting pipeline through an exhausting pipe, the gathering cover, the sucking and blowing devices, the converter, a hot metal bottle arranged above the converter and a smoke preventing chamber form a relatively sealed space, the converter is located in the smoke preventing chamber, the sucking and blowing devices comprise a blower fan connected with a motor, the air inlet of the blower fan is communicated with an air returning device, the air outlet of the blower fan is connected with an air pipe, and the air pipe is provided with a plurality of air outlet devices arranged to be corresponding to the air returning device. The invention has the following beneficial effects: 1, the apparatus has a simple structure and is convenient to realize; and 2, the quantity of air entering the gathering cover arranged above the converter is reduced, high-efficiency and low-consumption gathering of secondary flue gas of the converter before large-scale diffusion of the secondary flue gas is benefited, and energy conservation and environmental protection are realized.

Description

technical field [0001] The invention relates to a secondary flue gas purification facility of a steelmaking converter in an iron and steel enterprise, in particular to a novel blowing-suction type converter secondary flue gas collecting device. Background technique [0002] As we all know, environmental protection is a basic national policy that must be adhered to for a long time. Under the strong promotion of national policies and the supervision of public opinion, all iron and steel enterprises have put forward higher requirements for the environmental protection of plant areas. [0003] At present, the traditional steelmaking converter secondary flue gas capture device cannot capture the flue gas generated in the converter production process with high efficiency and low consumption. To a certain extent, it causes pollution to the steelmaking workshop and the atmospheric environment, and also consumes a lot of energy. . [0004] In order to improve the collection efficien...

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Problems solved by technology

[0003] At present, the traditional steelmaking converter secondary flue gas capture device cannot capture the flue gas generated in the converter production process with high efficiency and low consumption. To a certain extent, it causes pollution to the steelmaking workshop and the atmospheric environment, and also consumes a lot of energy.

[0004] In order to improve the collection efficiency, the method of increasing the dust removal air volume of the system is generally adopted at home and abroad. Although this method improves the capture efficiency of the secondary flue gas of the converter to a certain extent, the capacity of the dust removal equipment must be expanded to increase the air volume of the system. Not only As a result, the initial investment of the equipment has increased, and the operating cost has also increased greatly, which does not meet the relevant requirements of the country for energy conservation and emission reduction.

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