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Novel blast furnace stemming

A technology of blast furnace clay and blast furnace, which is applied in the field of new blast furnace clay and preparation, which can solve the problems of high temperature, dirty iron, and large flow, and achieve the effects of long storage time, cost saving and price reduction

Inactive Publication Date: 2013-04-03
HENAN POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, during long-term use, the taphole will be corroded, and the taphole will be reamed, resulting in shallow taphole, unstable iron flow, unclean iron, or even large flow, which seriously affects the normal production. Iron, and ultimately affect the service life of the blast furnace and the growth of production
The iron mouth is located inside the furnace, and the temperature is high. Under normal circumstances, people cannot enter the furnace for maintenance.

Method used

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  • Novel blast furnace stemming

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Embodiment 1: a kind of for 1080m 3 The blast furnace clay is characterized in that the blast furnace clay is composed of the following components by weight: zinc-aluminum spinel: 10-20 parts; raw bauxite powder: 5-15 parts; raw coal gangue: 10-20 parts parts; coal gangue calcined ore: 10~25 parts; composite clay: 10~20 parts; regenerated graphite electrode powder: 10~35 parts; vanadium pentoxide: 8~18 parts, asphalt powder: 3~8 parts; Glydol n 2002: 1.0~1.7 parts; additional binder: 14.5 parts. Preparation method of gun mud: Put all the raw materials into the mixer and pre-mix for 10 minutes; then add 90% of the total amount of binder, and wet mill for 30 minutes; add the remaining 10% of binder, and then wet mill for 10 minutes ;Sliced ​​by a mud slicer, then through a mud extruder, extruded into a shape, and bagged, which is the finished product; the extruded temperature is set at 75°C.

Embodiment 2

[0017] Embodiment 2: a kind of for 2500m 3 The blast furnace clay is characterized in that the blast furnace clay is composed of the following components by weight: zinc-aluminum spinel: 10-20 parts; raw bauxite powder: 5-15 parts; coal gangue raw ore: 10-20 parts 20 parts; coal gangue calcined cooked ore: 10~25 parts; composite clay: 10~20 parts; regenerated graphite electrode powder: 10~35 parts; vanadium pentoxide: 8~18 parts, asphalt powder: 3~8 parts; Glydol n 2002: 1.0~1.7 parts; Added binder: 14 parts. Preparation method of gun mud: Put all the raw materials into the mixer and pre-mix for 10 minutes; then add 90% of the total amount of binder, and wet mill for 30 minutes; add the remaining 10% of binder, and then wet mill for 10 minutes ;Sliced ​​by a mud slicer, then through a mud extruder, extruded into a shape, and bagged, which is the finished product; the extruded temperature is set at 72°C.

Embodiment 3

[0018] Embodiment 3: a kind of for 3200m 3 The blast furnace clay is characterized in that the blast furnace clay is composed of the following components by weight: zinc-aluminum spinel: 10-20 parts; raw bauxite powder: 5-15 parts; coal gangue raw ore: 10-20 parts 20 parts; coal gangue calcined cooked ore: 10~25 parts; composite clay: 10~20 parts; regenerated graphite electrode powder: 10~35 parts; vanadium pentoxide: 8~18 parts, asphalt powder: 3~8 parts; Glydol n 2002: 1.0~1.7 parts; Added binder: 13 parts. Preparation method of gun mud: Put all the raw materials into the mixer and pre-mix for 10 minutes; then add 90% of the total amount of binder, and wet mill for 30 minutes; add the remaining 10% of binder, and then wet mill for 10 minutes ;Sliced ​​by a mud slicer, then through a mud extruder, extruded into a shape, and bagged, which is the finished product; the extruded temperature is set at 78°C.

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Abstract

The invention discloses blast furnace stemming. The blast furnace stemming is characterized by comprising, by weight, 10-20 parts of gahnite, 5-15 parts of raw bauxite powder, 10-20 parts of gangue raw ores, 10-25 parts of gangue calcined clinker ores, 10-20 parts of composite clay, 10-33 parts of renewable graphite electrode powder, 8-18 parts of vanadium pentoxide, 3-8 parts of asphalt powder, 1.0-1.7 parts of Glydoln 2002, and 12-14.5 parts of extra binding agent. The novel blast furnace stemming is low in cost, capable of effectively maintaining chambering of tap holes, and is constant in using performance and operability after long-term storage.

Description

Technical field [0001] The present invention is a blast furnace iron refractory -resistant plastic field, which involves a new type of blast furnace mud and preparation methods. Background technique [0002] The blast furnace is the main equipment of the smelting raw iron. After the tinning of the blast furnace is completed, after the iron water is released from the iron mouth, in order to ensure the continuous smelting of the smelting, the iron outlet must be blocked and the material of the iron mouth is mud.In the process of long -term use of the iron outlet, there will be erosion, and the extension of the iron outlet will expand, which will cause the iron mouth to become lighter, the iron flow is unstable, the out of clean iron, or even running the big flow, etc., which seriously affects the normal production of production.Iron, and eventually affected the life of the utilization and output of the blast furnace.The iron mouth is inside the furnace, and the temperature is high....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/66
Inventor 山国强
Owner HENAN POLYTECHNIC UNIV
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