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A kind of environmental protection blast furnace clay

A technology of blast furnace clay and blast furnace, which is applied in the field of environmental protection blast furnace clay and its preparation. It can solve problems such as high temperature, unstable iron flow, and erosion, and achieve the effects of improving plasticity and activity, reducing the price of clay and keeping it for a long time.

Active Publication Date: 2016-06-08
ANHUI SAFE ELECTRONICS
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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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  • A kind of environmental protection blast furnace clay

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Effect test

Embodiment 1

[0015] 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: used waste clay: 10-20 parts; yttrium mullite: 5-15 parts; coal gangue raw ore: 10-20 parts parts; modified magnesium iron aluminum spinel powder: 10~25 parts; modified clay: 10~20 parts; recycled graphite electrode powder: 10~35 parts; thickener: 8~18 parts, asphalt powder: 3~8 parts parts; Glydoln2002: 0.2~0.5 parts; additional binder: 14.5 parts, nanocellulose 0.1. 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 65°C.

Embodiment 2

[0016] 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: used waste clay: 10-20 parts; yttrium mullite: 5-15 parts; coal gangue raw ore: 10-20 parts parts; modified magnesium iron aluminum spinel powder: 10~25 parts;; modified clay: 10~20 parts; recycled graphite electrode powder: 10~35 parts; thickener: 8~18 parts, asphalt powder: 3~ 8 parts; Glydoln2002: 0.2~0.5 parts; additional binder: 14 parts, nanocellulose 0.1. 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

[0017] 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: used waste clay: 10-20 parts; yttrium mullite: 5-15 parts; coal gangue raw ore: 10-20 parts parts; modified magnesium iron aluminum spinel powder: 10~25 parts; modified clay: 10~20 parts; recycled graphite electrode powder: 10~35 parts; thickener: 8~18 parts, asphalt powder: 3~8 parts parts; Glydoln2002: 0.2~0.5 parts; additional binder: 13 parts, nanocellulose 0.1. 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 65°C.

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Abstract

The invention discloses a new type of environmentally friendly blast furnace mud, which is characterized in that the blast furnace mud is composed of the following components in parts by weight: used waste mud: 10-20 parts; yttrium mullite: 5-15 parts; Coal gangue raw ore: 10~20 parts; modified magnesia iron aluminum spinel powder: 10~25 parts; modified clay: 10~20 parts; recycled graphite electrode powder: 10~33 parts; thickener: 8~18 parts, pitch powder: 3~8 parts; Glydol n 2002: 0.2~0.5 parts; additional binder: 12~14.5 parts, nanocellulose 0.1; the thickener is the weight ratio of vanadium ore and copper oxide 1 : 1 mixture. The taphole clay has low cost and good air permeability, and can effectively maintain the tap hole reaming. In addition, the use performance and operation performance of the taphole clay do not decrease during long-term storage.

Description

technical field [0001] The invention belongs to the field of refractory plastics for blast furnace ironmaking, and in particular relates to an environment-friendly blast furnace clay and a preparation method. Background technique [0002] The blast furnace is the main equipment for smelting pig iron. After the iron smelting in the blast furnace is completed, the molten iron is released from the taphole. In order to ensure the continuous smelting, the taphole must be blocked. The material that blocks the taphole is called gun mud. 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 output. The iron mouth is located inside the furnace, and the temperature is high. Under normal circumstances, people cannot enter and maintain ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/66
Inventor 郭金锋
Owner ANHUI SAFE ELECTRONICS
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