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Handling device for replacing a runner

A technology of operating device and operating position, applied in discharge device, charge control, blast furnace parts, etc., can solve problems such as complexity, heavy volume of main flow tank, safety problems, etc.

Inactive Publication Date: 2013-04-17
PAUL WURTH SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] While the prior art lifting devices disclosed in EP 0 279 165 and DE 36 24 266 do replace main flow channels, they require complex and expensive vertical lifting devices which at the same time present serious safety concerns
This problem is especially serious if the main channel is particularly heavy or bulky

Method used

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  • Handling device for replacing a runner
  • Handling device for replacing a runner
  • Handling device for replacing a runner

Examples

Experimental program
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Embodiment Construction

[0023] figure 1 A cross-sectional view of a foundry of a blast furnace 10 is shown with a taphole 12 and a main flow channel 14 associated with the taphole 12 . Reference numeral 16 denotes a casting field in the foundry. The main flow channel 14 is shown at the level of the casting field 16 , in the tapping position below the taphole 12 . The iron launder and the slag launder (not shown in the figure) are arranged downstream and beside the main flow launder 14 to divert the iron into the ladle tank and the slag into the slag tank or slag pit (not shown in the figure). from.

[0024] The operating device according to the invention is always designated with the reference numeral 20 . It comprises a tiltable bridge 26 comprising a first tiltable bridge 24 and a second tiltable bridge 34 . The first bridge 24 is mounted on the floor 44 of the foundry, in front of the taphole 12 . exist figure 1 In , the first tiltable bridge 24 is shown in a horizontal arrangement, wherein ...

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PUM

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Abstract

A device (20) for replacing a blast furnace runner allows the runner (14) to be transported between an upper, tapping floor level (16) and a lower, service level (42). This handling device (20) comprises an inclinable bridge (26) that can support the runner (14) in an operational position in front of a taphole (12) of the blast furnace (10). This bridge (26) can be inclined so as to form an inclined plane along which the runner (14) can be raised or lowered. Thus, the runner (14) is transported along an inclined plane from the upper, tapping floor level (16) to the lower, service level (42) and vice-versa.

Description

technical field [0001] The present invention relates to an operating device for replacing launders, in particular to the main ditch of a blast furnace. Background technique [0002] In the blast furnace foundry, pig iron and pig iron slag are separated in the main flow channel connected to the blast furnace taphole. Such main flow troughs are refractory lined troughs which must be refurbished periodically. A complete refurbishment of the main channel refractory lining is usually carried out at least once a week, during which time the corresponding taphole cannot be produced. In order to reduce non-productive time at the taphole, it is recommended to simply replace the main flow launder with a spare launder instead of refurbishing the refractory lining of the launder in situ. However, the dimensions of the main flow channel of a modern blast furnace are, for example, up to 20 m in length, 3 m in width, and 2 m in height, and their weight can be up to 400 t. Clearly, replac...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C21B7/14F27D3/14F27B1/21
CPCC21B7/14F27B1/21F27D3/145C21B7/00
Inventor 埃米尔·洛纳尔迪让-雅克·维利姆
Owner PAUL WURTH SA