CN106866163A - A kind of large blast furnace ironmaking tap-hole clay and preparation method thereof - Google Patents
A kind of large blast furnace ironmaking tap-hole clay and preparation method thereof Download PDFInfo
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- CN106866163A CN106866163A CN201710251663.4A CN201710251663A CN106866163A CN 106866163 A CN106866163 A CN 106866163A CN 201710251663 A CN201710251663 A CN 201710251663A CN 106866163 A CN106866163 A CN 106866163A
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/66—Monolithic refractories or refractory mortars, including those whether or not containing clay
Abstract
The invention discloses a kind of large blast furnace ironmaking tap-hole clay and preparation method thereof, including following mass fraction component：3 0mm Brown Alundums：15 ~ 20 parts；3 0mm soft clays：15 ~ 20 parts；1 0mm magnesia：5 ~ 8 parts；1 0mm sillimanites：10 ~ 15 parts；0.5 0mm magnesia iron：8 ~ 15 parts；Inclined clay powder：8 ~ 13 parts；37 parts of cobalt oxide aluminium powder, strontium carbonate powder：5 ~ 10 parts；Crystalline graphite powder：7 ~ 25 parts, it is combined 5 10 parts of powdered carbon, soft pitch powder：1 ~ 2 part；Modified tar：13 ~ 16 parts；Described modified tar includes 98 parts of tar for 100 parts of modified tar, and 1 part of ethylene glycol, 1 part of N methyl pyrrole networks alkanone reconciles through three kinds of materials and forms.The present invention can protect tapping hole aperture stabilization to be difficult change, stabilization of tapping a blast furnace, and during long-term storage, performance, operating characteristics do not decline the stemming in addition.
Description
Technical field
The invention belongs to technical field of blast furnace process, and in particular to a kind of large blast furnace ironmaking tap-hole clay and its preparation side
Method.
Background technology
, it is necessary to molten iron is put through blast furnace iron notch after blast furnace is the main equipment of smelting molten iron, and blast furnace process iron is finished
Go out to ensure that smelting is carried out continuously, it is necessary to which tapping hole is blocked, block the material of tapping hole, as tap-hole clay.At present, in smelting
The such as iron ore high of titanium containing vanadium when refining some special iron ores, because vanadium, titanyl compound fusing point are very high, it is higher than to tap a blast furnace
Temperature, can not be melted when tapping a blast furnace, and can be deposited on tapping hole, cause to tie thicker and thicker, cause the aperture of tapping hole to change；
General to tapping hole under high temperature to process in time again, the stabilization that the change of tapping hole has had a strong impact on iron mouth is tapped a blast furnace, and causes
It is unstable during iron, easily cause molten iron to run big stream, flame arrow, bring difficulty to the normal production schedule tapped a blast furnace of blast furnace is arranged.
The content of the invention
Goal of the invention：The present invention is directed to deficiency of the prior art, proposes that one kind protects tapping hole aperture stabilization not variable
Change, stabilization of tapping a blast furnace, the stemming during long-term storage, smelt iron by the large blast furnace that performance, operating characteristics do not decline in addition
With tap-hole clay and preparation method thereof.
Technical scheme：A kind of large blast furnace ironmaking tap-hole clay of the present invention, including following mass fraction component：
3-0mm Brown Alundums：15 ~ 20 parts；3-0mm soft clays：15 ~ 20 parts；1-0mm magnesia：5 ~ 8 parts；1-
0mm sillimanites：10 ~ 15 parts；0.5-0mm magnesia iron：8 ~ 15 parts；Inclined clay powder：8 ~ 13 parts；Cobalt oxide aluminium
Powder 3-7 parts, strontium carbonate powder：5 ~ 10 parts；Crystalline graphite powder：7 ~ 25 parts, it is combined 5-10 parts of powdered carbon, soft pitch powder
：1 ~ 2 part；Modified tar：13 ~ 16 parts；Described modified tar includes 98 parts of tar, second for 100 parts of modified tar
1 part of glycol, 1 part of N- methyl pyrrole networks alkanone reconciles through three kinds of materials and forms.
Further, described compound powdered carbon is hard charcoal, and sugar charcoal, three kinds of substance weights of pitch coke compare 1：2 ：7
Mixture.
Further, the inclined clay powder is that clay obtains weight shared by the composition of metakaolin after Overheating Treatment first
Than the substance A up to more than 60%, substance A is with leucite, dextrin by weight 8.5：1.2 ：0.3 is well mixed, i.e.,
It is inclined clay powder.
Further, described strontium carbonate powder is the cutting powder of cutting monocrystalline silicon generation during monocrystalline silicon production, described
Main component is SiC 50-70%, elemental silicon 30-50%.
The invention also discloses a kind of above-mentioned preparation method of large blast furnace ironmaking tap-hole clay, using following process method
It is obtained：
The first step produces stemming, by 3-0mm Brown Alundums：15 ~ 20 parts；3-0mm soft clays：15 ~ 20 parts；1-0mm
Magnesia：5 ~ 8 parts；1-0mm sillimanites：10 ~ 15 parts；0.5-0mm magnesia iron：8 ~ 15 parts；Inclined clay powder
：8 ~ 13 parts；3-7 parts of cobalt oxide aluminium powder, strontium carbonate powder：5 ~ 10 parts；Crystalline graphite powder：7 ~ 25 parts, it is combined powdered carbon
5-10 parts, soft pitch powder：1 ~ 2 part, wheeled kolleroang is put into, be first pre-mixed 15 minutes；It is subsequently adding modified tar
The 85% of total amount is wet to grind 35 minutes；Remaining 15% modified tar is added, rewetting is ground 15 minutes；Cut by stemming
Piece machine is cut into slices, and then through mud extruder, squeezes mud shaping, and room temperature is as cold as after cutting section, and the crowded mud temperature in the step is set as
55℃ ；
Second step matches somebody with somebody liniment, and by zirconic acid calcium powder, graphite powder, potassium silicate solution is by weight 38：32 ：30 stirrings are made into
Even mixing liquid is liniment, prepares stand-by；
3rd step, surface is smeared by the stemming after cooling with liniment, and packaging bag, as finished product are reinstalled after drying.
Beneficial effect：The present invention can protect tapping hole aperture stabilization to be difficult change, stabilization of tapping a blast furnace, and the stemming is in length in addition
During phase storage, performance, operating characteristics do not decline.
Specific embodiment
With reference to specific embodiment, the invention will be further described：
Embodiment 1
A kind of large blast furnace ironmaking tap-hole clay, including following mass fraction component：
3-0mm Brown Alundums：15 parts；3-0mm soft clays：15 parts；1-0mm magnesia：5 parts；1-0mm sillimanites
：10 parts；0.5-0mm magnesia iron：8 parts；Inclined clay powder：8 parts；3 parts of cobalt oxide aluminium powder, strontium carbonate powder：5 parts；
Crystalline graphite powder：7 parts, it is combined 5 parts of powdered carbon, soft pitch powder：1 part；Modified tar：13 parts；Described modified tar
For 100 parts of modified tar include 98 parts of tar, 1 part of ethylene glycol, 1 part of N- methyl pyrrole networks alkanone is adjusted through three kinds of materials
With form.
Described compound powdered carbon is hard charcoal, and sugar charcoal, three kinds of substance weights of pitch coke compare 1：2 ：7 mixture.
The inclined clay powder is that clay obtains weight ratio shared by the composition of metakaolin up to 60% after Overheating Treatment first
Substance A above, substance A is with leucite, dextrin by weight 8.5：1.2 ：0.3 is well mixed, as inclined clay
Powder.
Described strontium carbonate powder is the cutting powder of cutting monocrystalline silicon generation during monocrystalline silicon production, the main component
It is SiC 50%, elemental silicon 50%.
A kind of preparation method of above-mentioned large blast furnace ironmaking tap-hole clay, is obtained using following process method：
The first step produces stemming, by 3-0mm Brown Alundums：15 parts；3-0mm soft clays：15 parts；1-0mm magnesia：
5 parts；1-0mm sillimanites：10 parts；0.5-0mm magnesia iron：8 parts；Inclined clay powder：8 parts；Cobalt oxide aluminium powder 3
Part, strontium carbonate powder：5 parts；Crystalline graphite powder：7 parts, it is combined 5 parts of powdered carbon, soft pitch powder：1 part, it is put into wheeled mixed grind
Machine, is first pre-mixed 15 minutes；It is subsequently adding the 85% of modified tar total amount, wet stone roller 35 minutes；Add remaining 15%
Modified tar, rewetting is ground 15 minutes；By stemming microtome, then through mud extruder, mud shaping is squeezed, after cutting section
Room temperature is as cold as, the crowded mud temperature in the step is set as 55 DEG C；
Second step matches somebody with somebody liniment, and by zirconic acid calcium powder, graphite powder, potassium silicate solution is by weight 38：32 ：30 stirrings are made into
Even mixing liquid is liniment, prepares stand-by；
3rd step, surface is smeared by the stemming after cooling with liniment, and packaging bag, as finished product are reinstalled after drying.
Embodiment 2
A kind of large blast furnace ironmaking tap-hole clay, including following mass fraction component：
3-0mm Brown Alundums：20 parts；3-0mm soft clays：20 parts；1-0mm magnesia：8 parts；1-0mm silicon
Line stone：15 parts；0.5-0mm magnesia iron：15 parts；Inclined clay powder：13 parts；7 parts of cobalt oxide aluminium powder, carbon
Sour strontium powder：10 parts；Crystalline graphite powder：25 parts, it is combined 10 parts of powdered carbon, soft pitch powder：2 parts；Modified tar：
16 parts；Described modified tar includes 98 parts of tar, 1 part of ethylene glycol, N- methyl pyrrole network alkane for 100 parts of modified tar
1 part of ketone, reconciles through three kinds of materials and forms.
Described compound powdered carbon is hard charcoal, and sugar charcoal, three kinds of substance weights of pitch coke compare 1：2 ：7 mixture.
The inclined clay powder is that clay obtains weight ratio shared by the composition of metakaolin up to 60% after Overheating Treatment first
Substance A above, substance A is with leucite, dextrin by weight 8.5：1.2 ：0.3 is well mixed, as inclined clay
Powder.
Described strontium carbonate powder is the cutting powder of cutting monocrystalline silicon generation during monocrystalline silicon production, the main component
It is SiC 70%, elemental silicon 30%.
A kind of preparation method of above-mentioned large blast furnace ironmaking tap-hole clay, is obtained using following process method：
The first step produces stemming, by 3-0mm Brown Alundums：20 parts；3-0mm soft clays：20 parts；1-0mm magnesia
：8 parts；1-0mm sillimanites：15 parts；0.5-0mm magnesia iron：15 parts；Inclined clay powder：13 parts；Oxidation
7 parts of cobalt aluminium powder, strontium carbonate powder：10 parts；Crystalline graphite powder：25 parts, it is combined 10 parts of powdered carbon, soft pitch powder：2
Part, wheeled kolleroang is put into, first it is pre-mixed 15 minutes；It is subsequently adding the 85% of modified tar total amount, wet stone roller 35 minutes；
Remaining 15% modified tar is added, rewetting is ground 15 minutes；By stemming microtome, then through mud extruder, mud is squeezed
Shaping, is as cold as room temperature after cutting section, the crowded mud temperature in the step is set as 55 DEG C；
Second step matches somebody with somebody liniment, and by zirconic acid calcium powder, graphite powder, potassium silicate solution is by weight 38：32 ：30 stirrings are made into
Even mixing liquid is liniment, prepares stand-by；
3rd step, surface is smeared by the stemming after cooling with liniment, and packaging bag, as finished product are reinstalled after drying.
Embodiment 3
A kind of large blast furnace ironmaking tap-hole clay, including following mass fraction component：
3-0mm Brown Alundums：17 parts；3-0mm soft clays：17 parts；1-0mm magnesia：7 parts；1-0mm sillimanites
：12 parts；0.5-0mm magnesia iron：10 parts；Inclined clay powder：10 parts；5 parts of cobalt oxide aluminium powder, strontium carbonate powder：7 parts
；Crystalline graphite powder：9 parts, it is combined 7 parts of powdered carbon, soft pitch powder：1.5 parts；Modified tar：15 parts；Described is modified
Tar includes 98 parts of tar, 1 part of ethylene glycol, 1 part of N- methyl pyrrole networks alkanone, through three kinds of things for 100 parts of modified tar
Matter reconciles and forms.
Described compound powdered carbon is hard charcoal, and sugar charcoal, three kinds of substance weights of pitch coke compare 1：2 ：7 mixture.
The inclined clay powder is that clay obtains weight ratio shared by the composition of metakaolin up to 60% after Overheating Treatment first
Substance A above, substance A is with leucite, dextrin by weight 8.5：1.2 ：0.3 is well mixed, as inclined clay
Powder.
Described strontium carbonate powder is the cutting powder of cutting monocrystalline silicon generation during monocrystalline silicon production, the main component
It is SiC 60%, elemental silicon 40%.
A kind of preparation method of above-mentioned large blast furnace ironmaking tap-hole clay, is obtained using following process method：
The first step produces stemming, by 3-0mm Brown Alundums：17 parts；3-0mm soft clays：17 parts；1-0mm magnesia：7
Part；1-0mm sillimanites：12 parts；0.5-0mm magnesia iron：10 parts；Inclined clay powder：10 parts；Cobalt oxide aluminium powder 5
Part, strontium carbonate powder：7 parts；Crystalline graphite powder：9 parts, it is combined 7 parts of powdered carbon, soft pitch powder：1.5 parts, it is put into wheeled mixed
Mill, is first pre-mixed 15 minutes；It is subsequently adding the 85% of modified tar total amount, wet stone roller 35 minutes；Add remaining
15% modified tar, rewetting is ground 15 minutes；By stemming microtome, then through mud extruder, mud shaping, cutting point are squeezed
Room temperature is as cold as after section, the crowded mud temperature in the step is set as 55 DEG C；
Second step matches somebody with somebody liniment, and by zirconic acid calcium powder, graphite powder, potassium silicate solution is by weight 38：32 ：30 stirrings are made into
Even mixing liquid is liniment, prepares stand-by；
3rd step, surface is smeared by the stemming after cooling with liniment, and packaging bag, as finished product are reinstalled after drying.
The above, is only presently preferred embodiments of the present invention, and any formal limitation is not made to the present invention, though
So the present invention is disclosed above with preferred embodiment, but is not limited to the present invention, any to be familiar with this professional technology people
Member, without departing from the scope of the present invention, when making a little change or modification using the technology contents of the disclosure above
It is the Equivalent embodiments of equivalent variations, as long as being the content without departing from technical solution of the present invention, according to technical spirit of the invention
Any simple modification, equivalent variations and the modification made to above example, still fall within the range of technical solution of the present invention.
Claims (5)
1. a kind of large blast furnace ironmaking tap-hole clay, it is characterised in that：Component including following mass fraction：
3-0mm Brown Alundums：15 ~ 20 parts；3-0mm soft clays：15 ~ 20 parts；1-0mm magnesia：5 ~ 8 parts；1-
0mm sillimanites：10 ~ 15 parts；0.5-0mm magnesia iron：8 ~ 15 parts；Inclined clay powder：8 ~ 13 parts；Cobalt oxide aluminium
Powder 3-7 parts, strontium carbonate powder：5 ~ 10 parts；Crystalline graphite powder：7 ~ 25 parts, it is combined 5-10 parts of powdered carbon, soft pitch powder
：1 ~ 2 part；Modified tar：13 ~ 16 parts；Described modified tar includes 98 parts of tar, second for 100 parts of modified tar
1 part of glycol, 1 part of N- methyl pyrrole networks alkanone reconciles through three kinds of materials and forms.
2. a kind of large blast furnace ironmaking tap-hole clay according to claim 1, it is characterised in that：Described activated carbon composite
Powder is hard charcoal, and sugar charcoal, three kinds of substance weights of pitch coke compare 1：2 ：7 mixture.
3. a kind of large blast furnace ironmaking tap-hole clay according to claim 1, it is characterised in that：The inclined clay powder
For clay obtains weight shared by the composition of metakaolin than the substance A up to more than 60%, substance A after Overheating Treatment first
With leucite, dextrin by weight 8.5：1.2 ：0.3 is well mixed, as inclined clay powder.
4. a kind of large blast furnace ironmaking tap-hole clay according to claim 1, it is characterised in that：Described strontium carbonate
Powder is the cutting powder of cutting monocrystalline silicon generation during monocrystalline silicon production, and the main component is SiC 50-70%, elemental silicon
30-50%。
5. a kind of preparation method of the large blast furnace ironmaking tap-hole clay as described in claim 1-4 any one, its feature
It is：It is obtained using following process method：
The first step produces stemming, by 3-0mm Brown Alundums：15 ~ 20 parts；3-0mm soft clays：15 ~ 20 parts；1-0mm
Magnesia：5 ~ 8 parts；1-0mm sillimanites：10 ~ 15 parts；0.5-0mm magnesia iron：8 ~ 15 parts；Inclined clay powder
：8 ~ 13 parts；3-7 parts of cobalt oxide aluminium powder, strontium carbonate powder：5 ~ 10 parts；Crystalline graphite powder：7 ~ 25 parts, it is combined powdered carbon
5-10 parts, soft pitch powder：1 ~ 2 part, wheeled kolleroang is put into, be first pre-mixed 15 minutes；It is subsequently adding modified tar
The 85% of total amount is wet to grind 35 minutes；Remaining 15% modified tar is added, rewetting is ground 15 minutes；Cut by stemming
Piece machine is cut into slices, and then through mud extruder, squeezes mud shaping, and room temperature is as cold as after cutting section, and the crowded mud temperature in the step is set as
55℃ ；
Second step matches somebody with somebody liniment, and by zirconic acid calcium powder, graphite powder, potassium silicate solution is by weight 38：32 ：30 stirrings are made into
Even mixing liquid is liniment, prepares stand-by；
3rd step, surface is smeared by the stemming after cooling with liniment, and packaging bag, as finished product are reinstalled after drying.
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| CN201710251663.4A CN106866163A (en) | 2017-04-18 | 2017-04-18 | A kind of large blast furnace ironmaking tap-hole clay and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108794030A (en) * | 2018-08-06 | 2018-11-13 | 邵珠航 | A kind of smelting iron and steel tap-hole clay and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105237008A (en) * | 2015-11-03 | 2016-01-13 | 万燕杰 | Tap-hole clay for large blast furnace |
| CN105294125A (en) * | 2015-11-03 | 2016-02-03 | 汤炼芳 | Special taphole clay for blast furnace ironmaking |
| CN105347819A (en) * | 2015-11-03 | 2016-02-24 | 汤炼芳 | Blast furnace iron making special-purpose tap-hole clay |
-
2017
- 2017-04-18 CN CN201710251663.4A patent/CN106866163A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105237008A (en) * | 2015-11-03 | 2016-01-13 | 万燕杰 | Tap-hole clay for large blast furnace |
| CN105294125A (en) * | 2015-11-03 | 2016-02-03 | 汤炼芳 | Special taphole clay for blast furnace ironmaking |
| CN105347819A (en) * | 2015-11-03 | 2016-02-24 | 汤炼芳 | Blast furnace iron making special-purpose tap-hole clay |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108794030A (en) * | 2018-08-06 | 2018-11-13 | 邵珠航 | A kind of smelting iron and steel tap-hole clay and preparation method thereof |
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Application publication date: 20170620 |