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Three hopper charging installation for a shaft furnace

A technology for charging equipment and feeding hoppers, which is applied to lighting and heating equipment, furnaces, packaging, etc., and can solve problems such as large space, occupation, and difficulties

Inactive Publication Date: 2007-07-25
PAUL WURTH SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, generally speaking, such three-feed hopper charging devices, especially their valve housings, take up a lot of space
In addition, it is difficult to properly focus the flow of filling material on the dispenser in these devices

Method used

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  • Three hopper charging installation for a shaft furnace
  • Three hopper charging installation for a shaft furnace
  • Three hopper charging installation for a shaft furnace

Examples

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Embodiment Construction

[0022] Referring to Figures 1-4, a dual hopper charging apparatus, generally indicated by reference numeral 10, will be described in the first part of the detailed description below.

[0023] Figure 1 shows a double hopper charging device 10 on top of a blast furnace 12, the throat of which is only partially shown. The charging installation 10 comprises a rotary distribution device 14 provided as a roof closure for the throat of the blast furnace 12 . The rotary distribution device 14 itself is of a type different from existing BELL LESS TOP equipment. To distribute the bulk material inside the blast furnace 12, the distribution device 14 comprises chutes (not shown) serving as distribution elements. The chute is arranged inside the throat so that it is rotatable about a vertical central axis A of the blast furnace 12 and pivotable about a horizontal axis perpendicular to axis A.

[0024] As shown in FIG. 1 , the charging device 10 comprises a first hopper 20 and a second ho...

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Abstract

A three hopper charging installation (10') for a shaft furnace is disclosed. It comprises a rotary distribution device (14) for distributing bulk material in the furnace by rotating a distribution member about the furnace central axis (A) and a first, a second and a third hopper (20, 22, 24) arranged in parallel above the rotary distribution device and offset from the central axis. A sealing valve housing (32') is arranged between the hoppers and the distribution device. It has a top part (46') with a first, a second and a third inlet respectively communicating with the first, the second and the third hopper. A first, a second and a third sealing valve are provided in the top part. Each sealing valve comprises a flap which is pivotable between a closed sealing position and an open parking position. The sealing valve housing also has a funnel shaped bottom part (48') with an outlet communicating with the distribution device. According to the invention, the top part (46') of the sealing valve housing (32') has a tripartite stellate configuration in horizontal section with a central portion (156), in which the inlets are arranged adjacently in triangular relationship about the central axis (A), and with a first, a second and a third extension portion (160, 162, 164), each sealing valve being adapted such that its flap opens outwardly with respect to the central axis by pivoting into a parking position located in the first, second or third extension portion respectively.

Description

technical field [0001] The invention generally relates to the field of charging equipment for shaft furnaces, such as blast furnaces. More specifically, the present invention relates to a three-hopper charging apparatus for shaft furnaces. Background technique [0002] Worldwide, it has been found that BELL LESS TOP charging equipment has been widely used in blast furnaces. Said charging equipment usually comprises a rotary distribution device equipped with rotatable distribution elements, for example a distribution chute which is rotatable about a vertical central axis of the furnace and pivotable about a horizontal axis perpendicular to the central axis . So-called "parallel hopper top" installations comprise a plurality of hoppers arranged in parallel above the rotary distribution device for intermediate storage of bulk material to be fed into the distribution device. These devices allow for quasi-continuous filling of bulk material since one hopper can be (re)filled a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F27B1/20
CPCF27D3/10F27D3/0033F27B1/20B65D88/32C21B7/20F27D3/0032F27D3/0025
Inventor 埃米尔·洛纳尔迪居伊·蒂伦让·吉迪帕特里克·胡特马赫
Owner PAUL WURTH SA
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