A 2500m3 blast furnace clay

A technology for popping clay and blast furnace, which is applied in the field of new environmentally friendly blast furnace mud and its preparation, can solve the problems of high temperature, unstable iron flow, and impure iron production, and achieves improvement in plasticity and activity, reduction in the price of popping mud, and prevention of re-production. The effect of reaming

Inactive Publication Date: 2015-08-26
潘辉平
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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 2500m3 blast furnace clay

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Experimental program
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Effect test

Embodiment 1

[0015] Embodiment 1: 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: magnesium aron: 10-20 parts; yttrium-mullite: 5-15 parts; raw coal gangue: 10-20 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; Glydol n 2002: 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: magnesium aron: 10-20 parts; yttrium-mullite: 5-15 parts; raw coal gangue: 10-20 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 ; Glydol n 2002: 0.2~0.5 parts; Added 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 2500m 3 The blast furnace clay is characterized in that the blast furnace clay is composed of the following components by weight: magnesium aron: 10-20 parts; yttrium-mullite: 5-15 parts; raw coal gangue: 10-20 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; Glydol n 2002: 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 2500m<3> blast furnace tap-hole clay which is characterized by being prepared from the following components in parts by weight: 10-20 parts of MgAlON, 5-15 parts of yttrium mullite, 10-20 parts of raw ores of gangue, 10-25 parts of modified magnesium-iron-aluminum picotite powder, 10-20 parts of modified clay, 10-33 parts of regenerative graphite electrode powder, 8-18 parts of thickening agent, 3-8 parts of asphalt powder, 0.2-0.5 part of Glydoln2002, 12-14.5 parts of additional binder and 0.1 part of nanocellulose. The thickening agent is a mixture of vanadium iron ores and copper oxide in the weight ratio of 1:1. The tap-hole clay is low in cost, good in breathability and capable of effectively maintaining the chambering of a tap hole; in addition, the service and operation performances of the tap-hole clay are not lowered in a long-term storage process.

Description

technical field [0001] The invention belongs to the field of refractory plastics for blast furnace ironmaking, and in particular relates to a novel environment-friendly blast furnace clay and a preparation method thereof. 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 ...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): C04B35/66
Inventor潘辉平
Owner潘辉平