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Blast furnace swing flow nozzle erosion state measuring method and device

A swing nozzle and state measurement technology, applied in blast furnaces, inspection devices, blast furnace details, etc., can solve problems such as process accidents due to erosion of nozzles that cannot be swung, and achieve convenient and quick measurement, save manpower and time, and avoid process accidents Effect

Inactive Publication Date: 2021-01-29
SGIS SONGSHAN CO LTD
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  • Description
  • Claims
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Problems solved by technology

[0004] The purpose of the present invention is to propose a method and device for measuring the erosion state of the swing nozzle of a blast furnace, so as to solve the problem in the prior art that the erosion of the swing nozzle cannot be clearly understood, resulting in process accidents

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  • Blast furnace swing flow nozzle erosion state measuring method and device
  • Blast furnace swing flow nozzle erosion state measuring method and device
  • Blast furnace swing flow nozzle erosion state measuring method and device

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Embodiment Construction

[0029] Below, the present invention will be further described in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of not conflicting, the various embodiments described below or the technical features can be combined arbitrarily to form new embodiments. .

[0030] At present, sometimes the edge of the swing nozzle installed under the iron ditch of the casthouse is slagging, and the swing nozzle is prone to erosion too wide and too deep; once the swing nozzle burns through, it is easy to cause high-temperature molten iron accidents and other process accidents. The blast furnace was forced to stop the wind, etc.; it not only affects the technical and economic indicators of the blast furnace, but also consumes a lot of manpower and material resources.

[0031] In view of this, the present invention proposes a method for measuring the erosion state of a blast furnace swing nozzle, which uses detection tools a...

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Abstract

The invention relates to a blast furnace swing flow nozzle erosion state measuring method and device. The method comprises the following steps that the length of a detection tool is measured, and a first length is obtained; the distance length from a dust removal cover plate to the top of a swing flow nozzle is measured, and a second length is obtained; the lower end of the detection tool extendsinto the bottommost part of the swing flow nozzle through a measuring hole of the dust removal cover plate, the length from the upper end of the detection tool to the dust removal cover plate is measured, and a third length is obtained; and the second length and the third length are subtracted from the first length correspondingly, the corrosion depth of the swing flow nozzle is obtained. According to the blast furnace swing flow nozzle erosion state measuring method and device, the detection tool stretches into the bottom of the swing flow nozzle, the erosion depth of the swing flow nozzle ismeasured in real time, the erosion state of the swing flow nozzle is monitored in time, the blast furnace tapping process is guaranteed to be safe and controllable, occurrence of process accidents isavoided, meanwhile, measurement is convenient and rapid, and manpower and time are saved.

Description

technical field [0001] The invention relates to the technical field of blast furnace ironmaking, in particular to a method and device for measuring the erosion state of a blast furnace swing nozzle. Background technique [0002] The large and medium-sized blast furnaces of modern intensified smelting have a large amount of iron. If the traditional method of single-line railway row iron ladles is used in the casthouse, the iron trench must be long, the tank space is large, and the casthouse area is also large. Not only the casting work in front of the furnace The amount is large, and the infrastructure investment for building the casthouse has also increased a lot. Therefore, the swing nozzle 300 is introduced. Please refer to figure 2 , the swing nozzle is installed below the casthouse iron ditch, and its effect is to convert the molten iron that the tap ditch 400 flows to one of the left and right directions, and inject it into the molten iron tank parked on the railway u...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21B7/24C21B5/00
CPCC21B5/00C21B7/24
Inventor 陈开泉包锋张志坚李圭文匡洪锋颜伟姚春刚沈建明周凌云谢救民
Owner SGIS SONGSHAN CO LTD
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