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A 900m3 blast furnace clay

A blast furnace clay and blast furnace technology, which is applied in the field of new blast furnace clay and its preparation, can solve problems such as erosion, unclean iron, taphole reaming, etc., so as to improve the ability of anti-erosion and anti-scouring, and increase the ability of sulfur and phosphorus , Improve the effect of thermal conductivity

Inactive Publication Date: 2016-06-08
甘肃俱进循环经济利用有限公司
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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 unstable iron flow, shallow taphole, unclean iron, and 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

Method used

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  • A 900m3 blast furnace clay

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] Embodiment 1: a kind of for 900m 3 The blast furnace clay is characterized in that the blast furnace clay is composed of the following components in parts by weight: 10 parts of bauxite; 10 parts of titanium nitride; 8 parts of aluminum nitride; 10 parts of raw pyrophyllite; 1 part; ball clay: 20 parts; alumina powder 2 parts; graphite powder: 20 parts; silicate 425 cement 1 part; Ether-modified polyorganosiloxane: 0.05 parts; additional binder: 15 parts;

[0012] The preparation method of gun mud: put all the above materials into the mixer and pre-mix for 15 minutes; then add 80% of the total amount of binder, and wet mill for 40 minutes; add the remaining 20% ​​of binder, and then wet mill for 10 minutes Minutes; after being sliced ​​by a mud slicer, then through a mud extruder, the mud is extruded into shape, and packed into a packaging bag, which is the finished product; the extruding temperature is set at 70°C.

Embodiment 2

[0013] Embodiment 2: a kind of for 900m 3 The blast furnace clay is characterized in that the blast furnace clay is composed of the following components by weight: 14 parts of bauxite; 6 parts of titanium nitride; 8 parts of aluminum nitride; 10 parts of raw pyrophyllite; 1 part; ball clay: 20 parts; alumina powder 2 parts; graphite powder: 20 parts; silicon nitride iron powder: 8 parts, anthracite powder: 4 parts, resin powder: 7 parts; polyether modified polyorganosiloxane : 0.03 part; Added binder: 17 parts; The preparation method of gun clay: put all the above-mentioned raw materials into the mixer mill, pre-mixed for 15 minutes; then add 80% of the total amount of binder, and wet mill for 40 minutes; The lower 20% binder is then wet-milled for 10 minutes; sliced ​​by a mud slicer, and then squeezed into a mud by a mud extruder, and packed into a packaging bag, which is the finished product; the mud extrusion temperature is set at 70°C.

Embodiment 3

[0014] Embodiment 3: a kind of for 900m 3 The blast furnace clay is characterized in that the blast furnace clay is composed of the following components by weight: 14 parts of bauxite; 6 parts of titanium nitride; 10 parts of aluminum nitride; 16 parts of raw pyrophyllite; 1 part; ball clay: 20 parts; alumina powder 2 parts; graphite powder: 12 parts; silicate 425 cement 1 part; Ether-modified polyorganosiloxane: 0.01 part; additional binder: 18 parts; preparation method of gun clay: put all the above-mentioned raw materials into a mixer mill, pre-mix for 15 minutes; then add 80% of the total amount of binder , wet milling for 40 minutes; add the remaining 20% ​​of the binder, and then wet milling for 10 minutes; slice through the mud slicer, and then go through the mud extruder, extrude the mud, put it into a packaging bag, and it is the finished product; the mud extruding temperature Set to 70°C. .

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Abstract

The invention discloses 900 m<3> blast furnace taphole clay. The blast furnace taphole clay is characterized by comprising the following components in parts by weight: 6-10 parts of titanium nitride, 8-15 parts of aluminum nitride, 10-20 parts of pyrophyllite rawore, 1-3 parts of zirconium carbonate, 10-20 parts of ball clay, 2-4 parts of alumina powder, 12-20 parts of graphite powder, 0-1 part of silicate 425 cement, 3-8 parts of ferro-silicon nitride powder, 2-5 parts of anthracite culm, 3-8 parts of resin powder, 0.01-0.05 parts of polyether-modified polyorganosiloxane and 15-18 parts of an additional binder. With the use of the technical scheme, the taphole clay which is convenient to ram, resistant to molten iron erosion and stable in molten iron discharge is obtained, and the problems that a taphole becomes shallow and is free of washing resistance and molten iron erosion resistance, and the taphole clay is seriously polluted due to poor quality of the taphole clay used in a blast furnace at present can be solved.

Description

technical field [0001] The invention belongs to the field of refractory plastics for blast furnace ironmaking, and in particular relates to a novel 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 unstable iron flow, shallow taphole, unclean iron, and 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. Contents of the invention [0003] The purpose of the present invention is to provide a kind of mud that is convenient to make mud, anti-corr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/66
CPCC04B33/13C04B35/103C04B35/522C04B35/622C04B35/6316C04B35/632C04B35/63448C04B35/66C04B2235/3217C04B2235/3244C04B2235/349C04B2235/3852C04B2235/3865C04B2235/3873C04B2235/3886C04B2235/405C04B2235/422C04B2235/425C04B2235/44C04B2235/48C04B2235/483C04B2235/9607C04B2235/9669
Inventor 王华辉
Owner 甘肃俱进循环经济利用有限公司