Method for discharging residual iron in blast furnace and dust removal device
A technology of residual iron and blast furnace, applied in the direction of discharge devices, blast furnaces, dust collectors, etc., can solve the problems of low safety, easily scalded workers, and a large number of problems, achieving high safety, avoiding physical damage, and reducing pollution.
Inactive Publication Date: 2021-07-27
SGIS SONGSHAN CO LTD
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Problems solved by technology
[0004] In the prior art, atomizer spraying is generally used to reduce smoke and dust. However, this dust removal method is less safe. A large amount of water vapor formed by atomization is sprayed on the high-temperature surface of the main iron channel to generate a large amount of steam, which is very easy to burn the work. personnel
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[0027] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only the technical solutions of the present invention. Some, but not all, embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present invention.
[0028] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected" and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integrated ; It can be a mechanical connection or an electrical connection; it can be a direct...
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Abstract
The invention discloses a method for discharging residual iron in a blast furnace and a dust removal device. A fan cover and a dust removal system are provided in the method for discharging the residual iron in the blast furnace; one end of an air suction pipeline of the dust removal system is connected with a filtering mechanism of the dust removal system, the other end of the air suction pipeline is connected with the fan cover, and the fan cover covers a residual iron runner of the blast furnace; in the process that the residual iron runner discharges the residual iron, the dust removal system is started to suck smoke dust generated in the residual iron runner into the fan cover, then the smoke dust is discharged to the filtering mechanism through the air suction pipeline, and after the smoke dust is filtered through the filtering mechanism, gas is discharged to the outside of a smoke discharge tower from an exhaust outlet of the dust removal system. Different from the prior art in which an atomizing machine is adopted for spraying to reduce flying dust, the method has the advantages that the dust removal system is arranged to filter the smoke dust, so that the problem of the flying dust generated in the process of discharging the residual iron of the blast furnace is effectively solved, the pollution to the environment is reduced, the harm of the smoke dust to the body of a worker is avoided, and the method has the characteristics of good dust removal effect and high safety.
Description
technical field [0001] The invention relates to the technical field of blast furnace ironmaking, in particular to a method for discharging residual iron in a blast furnace and a dust removal device for discharging residual iron in a blast furnace. Background technique [0002] There are generally more than two main iron channels in front of a large blast furnace, and each main iron channel needs to be shut down for maintenance on a regular basis. When the furnace is shut down for maintenance, it is necessary to open the residual iron ditch cover, use the crane in front of the furnace to hoist the small movable electric opening machine to the residual iron eye of the skimmer, and use the opening machine to drill the residual iron eye to form residual iron The tunnel is used to discharge the residual iron inside the main iron trench through the residual iron tunnel, so that the repair process of the main iron trench can be satisfied. [0003] When the residual iron is placed,...
Claims
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IPC IPC(8): C21B7/22C21B7/24C21B7/14C21B5/00
CPCC21B7/22C21B7/24C21B7/14C21B5/006Y02P10/20
Inventor 张志坚陈生利颜伟彭厅何新朱才新
Owner SGIS SONGSHAN CO LTD