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Iron-storing notch of blast furnace

A blast furnace tapping and tapping ditch technology, applied in the direction of discharge device and the like, can solve the problems affecting the production efficiency of blast furnaces, short service life and high maintenance frequency, and achieve the effects of low cost, improved corrosion resistance and improved economic benefits.

Active Publication Date: 2008-11-05
WUHAN WINNING TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Medium and small blast furnaces generally use rammed refractory materials to form the working layer, which has a short service life and high maintenance frequency, which affects the production efficiency of the blast furnace
Although some can shorten the replacement cycle, such as "blast furnace tapping channel" (CN02217414.1), the cost is relatively high

Method used

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  • Iron-storing notch of blast furnace

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Effect test

Embodiment Construction

[0010] The present invention will be further described below in conjunction with the accompanying drawings.

[0011] A iron storage type blast furnace iron trough, such as figure 1 As shown, it consists of the iron trench protective brick layer [1], the iron trench carbonaceous material working layer [2], the iron trench castable layer [3], the iron trench permanent brick lining [4], the iron trench heat insulation layer [5] Composition; the surface layer of the iron ditch is the iron ditch protective brick layer [1], the inner layer is the carbonaceous material working layer [2], the middle is the iron ditch castable layer [3], and the second outer layer is the iron ditch permanent The brick lining [4], the outermost layer is the iron ditch thermal insulation layer [5].

[0012] Each layer of the iron trench described in this embodiment plays an irreplaceable and mutually coordinated protective role: for example, the iron trench protective brick layer [1] is built with high-...

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Abstract

The invention is about a blast furnace casting groove. It is made up of the protecting brick, the carbon material working lining, the casting material layer, the permanent brick lining and the insulating layer. The surface of the tapping groove is made up of the protecting brick, the carbon material working lining, the casting material layer, the permanent brick lining and the insulating layer. The groove can be field mounted; the carbon material working lining can improve the corrosion resistant ability.

Description

1. Technical field [0001] The invention belongs to a blast furnace tapping device, in particular to an iron storage type blast furnace tapping trough. 2. Background technology [0002] In recent years, due to the continuous improvement of the level of smelting and the application of a large number of technological advancements to the construction and production of blast furnaces, the service life of the first generation of blast furnaces has become longer and longer. However, the tapping channel technology matching the blast furnace has not been greatly improved, which has become a bottleneck restricting the high and smooth production of the blast furnace. [0003] At present, the large and medium-sized blast furnace iron channels in the industry generally use on-site cast corundum silicon carbide refractory materials to form the working layer. The disadvantage is that the corrosion resistance of slag and iron is average and the maintenance and replacement cycle is long. Me...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C21B7/14
Inventor 刘忠江唐坤苏伯平丁岩峰
Owner WUHAN WINNING TECH
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