CN103387401A - High heat conductive carbon ramming mass and preparation method thereof - Google Patents
High heat conductive carbon ramming mass and preparation method thereof Download PDFInfo
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- CN103387401A CN103387401A CN2013103447493A CN201310344749A CN103387401A CN 103387401 A CN103387401 A CN 103387401A CN 2013103447493 A CN2013103447493 A CN 2013103447493A CN 201310344749 A CN201310344749 A CN 201310344749A CN 103387401 A CN103387401 A CN 103387401A
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Abstract
The invention relates to a high heat conductive carbon ramming mass and a preparation method thereof. According to the technical scheme of the invention, the high heat conductive carbon ramming mass comprises the raw materials in percentage by weight: 30-45wt% of industrially synthesized graphite with granularity of 1-5mm, 6-22wt% of industrially synthesized graphite with granularity smaller than 0.074mm, 10-30wt% of flake graphite with granularity of 1-5mm, 8-20wt% of high carbon composite micro powder, and 10-15wt% of modified composite thermosetting resin. The preparation method comprises the following steps: stirring the industrially synthesized graphite with granularity of 1-5mm and high carbon composite micro powder at an intermediate speed first; then, adding 5-8wt% of modified composite thermosetting resin, and stirring at an intermediate speed first and then at a high speed; and finally, pouring the balance of raw materials and residual modified composite thermosetting resin, and stirring at a high speed to prepare the high heat conductive carbon ramming mass. The heat conductive carbon ramming mass provided by the invention has the characteristic of easiness in construction; and according to the prepared heat conductive carbon ramming mass, a cooling system of a blast furnace can be used for effectively cooling a brasque, so that the blast furnace operates stably for a long time.
Description
Technical field
The invention belongs to carbon element ramming mass technical field.Be specifically related to a kind of highly-conductive hot carbon element ramming mass and preparation method thereof.
Background technology
Along with the development of modern blast furnace to heat size maximization, production high efficiency direction, the importance of blast furnace longevity manifests day by day, blast furnace can the long-lived normal production order for iron and steel enterprise and enterprise's overall economic benefit impact huge, raising along with smelting strength of blast furnace, blast furnace masonry technology and building materials are had higher requirement, the brick fuel of building use by laying bricks or stones develops into microporous carbon brick, schungite brick fuel, graphite brick fuel and ultramicropore brick fuel by common brick fuel, carbon element ramming mass with the use of brick fuel coupling there is higher requirement
Blast furnace is mainly used in the filling in gap between gap between blast furnace bottom leveling layer (the ramming layer on the water cooling tube medullary ray), cupola well brick fuel and brick fuel and brick fuel and cooling apparatus with the carbon element ramming mass.The furnace life requirement of a modern blast furnace body generation is more and more longer, and be 15～20 years general life.In order to reach life; adopt pressure cooling namely mainly by furnace heat is taken out of by recirculated cooling water in cooling stave or cooling plate; make 1150 ℃ of thermoisopleths move forward to refractory materials (carbon brick, ceramic cup and cooling wall inlaid brick); form dynamic slag crust with the protection refractory materials in smelting process; the erosion of minimizing to refractory materials, thus realize that blast furnace is long-lived.Carbon element ramming mass with good heat conductive performance is that blast furnace cooling system plays the basis of effective cooling effect to furnace lining, if thermal conductivity is on the low side, the cooling intensity of cooling system will be affected, thereby reduction cooling performance, hinder the performance of brick fuel and cooling system heat conductivility, finally affect the normal production of blast furnace campaign and blast furnace.
There is following problem in present carbon element ramming mass: (1) is difficult for ramming, and workability is poor; (2) thermal conductivity is low, hinders the performance of brick fuel and cooling system heat conductivility, makes the anti-material loss of blast furnace accelerate.
Summary of the invention
The present invention is intended to overcome the problem that existing carbon element ramming mass exists, and purpose is to provide a kind of preparation method of easy working highly-conductive hot carbon element ramming mass; Can make blast furnace cooling system play effective cooling to furnace lining with the highly-conductive hot carbon element ramming mass of the method preparation, can ensure the long-lived steady running of blast furnace.
For completing above-mentioned task, the technical solution used in the present invention is: raw material and the content thereof of highly-conductive hot carbon element ramming mass are:
The industrial synthetic stone China ink of granularity 1 ~ 5mm is 30 ~ 45wt%;
Granularity is 6 ~ 22wt% less than the industrial synthetic stone China ink of 0.074 mm;
The scale graphite of granularity 1 ~ 5mm is 10 ~ 30 wt%;
The high-carbon composite micro-powder is 8 ~ 20 wt%;
Modification compound thermal thermosetting resin is 10 ~ 15 wt%.
The preparation method of highly-conductive hot carbon element ramming mass is: pressing above-mentioned raw materials and content thereof, is first that industrial synthetic stone China ink and the high-carbon composite micro-powder of 1 ~ 5mm stirs 5 ~ 10min in the stirrer middling speed with granularity; Then the modification compound thermal thermosetting resin that adds 5 ~ 8wt%, stir 5 ~ 15min in the stirrer middling speed, then high-speed stirring 10 ~ 15min; Pour finally all the other raw materials and remaining modification compound thermal thermosetting resin into, in the stirrer high speed, stir 10 ~ 15min, make highly-conductive hot carbon element ramming mass.
Fixed carbon 〉=the 99wt% of described industrial synthetic stone China ink, ash content≤0.3wt%.
Fixed carbon 〉=the 99wt% of described scale graphite, ash content≤0.4wt%; Granularity is 0.28 ~ 0.5mm.
Fixed carbon 〉=the 90wt% of described high-carbon composite micro-powder; Granularity≤0.074mm.
The stirring velocity that described middling speed stirs is 40r/min, and the stirring velocity of high-speed stirring is 60r/min.Owing to adopting technique scheme, the present invention has following positively effect:
1, the present invention adopts industrial synthetic stone China ink purity high, can effectively increase application property and heat conductivility;
2, the present invention adopts the high standard scale graphite, has significantly improved the thermal conductivity of product;
3, the present invention adds the high-carbon composite micro-powder, and the high-carbon composite micro-powder at high temperature decomposes carbonization, generates netted carbochain and can effectively improve the hot strength of product, and can make products made thereby easily ramming and easily construction at normal temperatures;
4, the present invention adopts modification compound thermal thermosetting resin as wedding agent, has greatly reduced the add-on of wedding agent, has improved the thermal conductivity of product; And due to modification compound thermal thermosetting resin carbon residue at high temperature far above conventional resins, at high temperature modification compound thermal thermosetting resin generates the strip carbochain, the reticulated carbon chain combination span reticulated structure that can generate with composite micro-powder, effectively improved the hot performance of product.
Highly-conductive hot carbon element ramming mass to the present invention's preparation adopts the method for low-temperature curing to detect: the thermal conductivity after 180 ℃ * 24h solidifies is conducive to the blast furnace hearth and bottom life-time dilatation more than reaching 27W/mk.
Therefore, the present invention has easy working characteristics, and prepared highly-conductive hot carbon element ramming mass can make blast furnace cooling system play effective cooling to furnace lining, has ensured the long-lived steady running of blast furnace.
Embodiment
The present invention will be further described below in conjunction with embodiment, is not the restriction to its protection domain:
For avoiding repetition, first the technical parameter unification of the related raw material of this embodiment and technique is described below, repeat no more in embodiment:
Fixed carbon 〉=the 99wt% of described industrial synthetic stone China ink, ash content≤0.3wt%;
Fixed carbon 〉=the 99wt% of described scale graphite, ash content≤0.4wt%; Granularity is 0.28 ~ 0.5mm;
Fixed carbon 〉=the 90wt% of described high-carbon composite micro-powder; Granularity≤0.074mm;
The stirring velocity that described middling speed stirs is 40r/min, and the stirring velocity of high-speed stirring is 60r/min.
Embodiment 1
A kind of highly-conductive hot carbon element ramming mass and preparation method thereof.Raw material and the content thereof of described highly-conductive hot carbon element ramming mass are:
The industrial synthetic stone China ink of granularity 1 ~ 5mm is 40 ~ 45wt%;
Granularity is 15 ~ 22wt% less than the industrial synthetic stone China ink of 0.074 mm;
The scale graphite of granularity 1 ~ 5mm is 10 ~ 17 wt%;
The high-carbon composite micro-powder is 8 ~ 13 wt%;
Modification compound thermal thermosetting resin is 10 ~ 12 wt%.
The preparation method of described highly-conductive hot carbon element ramming mass is: pressing above-mentioned raw materials and content thereof, is first that industrial synthetic stone China ink and the high-carbon composite micro-powder of 1 ~ 5mm stirs 5 ~ 10min in the stirrer middling speed with granularity; Then the modification compound thermal thermosetting resin that adds 5 ~ 8wt%, stir 5 ~ 15min in the stirrer middling speed, then high-speed stirring 10 ~ 15min; Pour finally all the other raw materials and remaining modification compound thermal thermosetting resin into, in the stirrer high speed, stir 10 ~ 15min, make highly-conductive hot carbon element ramming mass.
Adopt the method for low-temperature curing, the plain ramming mass of the highly-conductive hot carbon of the present embodiment preparation is detected: the thermal conductivity after 180 ℃ * 24h solidifies is conducive to the blast furnace hearth and bottom life-time dilatation more than reaching 27W/mk.
Embodiment 2
A kind of highly-conductive hot carbon element ramming mass and preparation method thereof.Raw material and the content thereof of described highly-conductive hot carbon element ramming mass are:
The industrial synthetic stone China ink of granularity 1 ~ 5mm is 33 ~ 43wt%;
Granularity is 7 ~ 16wt% less than the industrial synthetic stone China ink of 0.074 mm;
The scale graphite of granularity 1 ~ 5mm is 16 ~ 25 wt%;
The high-carbon composite micro-powder is 12 ~ 17wt%;
Modification compound thermal thermosetting resin is 11 ~ 13wt%.
The preparation method of described highly-conductive hot carbon element ramming mass is: pressing above-mentioned raw materials and content thereof, is first that industrial synthetic stone China ink and the high-carbon composite micro-powder of 1 ~ 5mm stirs 5 ~ 10min in the stirrer middling speed with granularity; Then the modification compound thermal thermosetting resin that adds 5 ~ 8wt%, stir 5 ~ 15min in the stirrer middling speed, then high-speed stirring 10 ~ 15min; Pour finally all the other raw materials and remaining modification compound thermal thermosetting resin into, in the stirrer high speed, stir 10 ~ 15min, make highly-conductive hot carbon element ramming mass.
Adopt the method for low-temperature curing, the plain ramming mass of the highly-conductive hot carbon of the present embodiment preparation is detected: the thermal conductivity after 180 ℃ * 24h solidifies is conducive to the blast furnace hearth and bottom life-time dilatation more than reaching 32W/mk.
Embodiment 3
A kind of highly-conductive hot carbon element ramming mass and preparation method thereof.Raw material and the content thereof of described highly-conductive hot carbon element ramming mass are:
The industrial synthetic stone China ink of granularity 1 ~ 5mm is 30 ~ 38wt%;
Granularity is 6 ~ 8wt% less than the industrial synthetic stone China ink of 0.074 mm;
The scale graphite of granularity 1 ~ 5mm is 24 ~ 30 wt%;
The high-carbon composite micro-powder is 14 ~ 20 wt%;
Modification compound thermal thermosetting resin is 13 ~ 15 wt%.
The preparation method of described highly-conductive hot carbon element ramming mass is: pressing above-mentioned raw materials and content thereof, is first that industrial synthetic stone China ink and the high-carbon composite micro-powder of 1 ~ 5mm stirs 5 ~ 10min in the stirrer middling speed with granularity; Then the modification compound thermal thermosetting resin that adds 5 ~ 8wt%, stir 5 ~ 15min in the stirrer middling speed, then high-speed stirring 10 ~ 15min; Pour finally all the other raw materials and remaining modification compound thermal thermosetting resin into, in the stirrer high speed, stir 10 ~ 15min, make highly-conductive hot carbon element ramming mass.
Adopt the method for low-temperature curing, the plain ramming mass of the highly-conductive hot carbon of the present embodiment preparation is detected: the thermal conductivity after 180 ℃ * 24h solidifies is conducive to the blast furnace hearth and bottom life-time dilatation more than reaching 37W/mk.
This embodiment compared with prior art, has following positively effect:
1, this embodiment adopts industrial synthetic stone China ink purity high, can effectively increase application property and heat conductivility;
2, this embodiment adopts the high standard scale graphite, has significantly improved the thermal conductivity of product;
3, this embodiment adds the high-carbon composite micro-powder, and the high-carbon composite micro-powder at high temperature decomposes carbonization, generates netted carbochain and can effectively improve the hot strength of product, and can make products made thereby easily ramming and easily construction at normal temperatures;
4, this embodiment adopts modification compound thermal thermosetting resin as wedding agent, has greatly reduced the add-on of wedding agent, has improved the thermal conductivity of product; And due to modification compound thermal thermosetting resin carbon residue at high temperature far above conventional resins, at high temperature modification compound thermal thermosetting resin generates the strip carbochain, the reticulated carbon chain combination span reticulated structure that can generate with composite micro-powder, effectively improved the hot performance of product.
Highly-conductive hot carbon element ramming mass to the preparation of this embodiment adopts the method for low-temperature curing to detect: the thermal conductivity after 180 ℃ * 24h solidifies is conducive to the blast furnace hearth and bottom life-time dilatation more than reaching 27W/mk.
Therefore, this embodiment has easy working characteristics, and prepared highly-conductive hot carbon element ramming mass can make blast furnace cooling system play effective cooling to furnace lining, has ensured the long-lived steady running of blast furnace.
Claims (6)
1. the preparation method of highly-conductive hot carbon element ramming mass is characterized in that raw material and the content thereof of described highly-conductive hot carbon element ramming mass is:
The industrial synthetic stone China ink of granularity 1 ~ 5mm is 30 ~ 45wt%,
Granularity is 6 ~ 22wt% less than the industrial synthetic stone China ink of 0.074 mm,
The scale graphite of granularity 1 ~ 5mm is 10 ~ 30 wt%,
The high-carbon composite micro-powder is 8 ~ 20 wt%,
Modification compound thermal thermosetting resin is 10 ~ 15 wt%;
The preparation method of highly-conductive hot carbon element ramming mass is: pressing above-mentioned raw materials and content thereof, is first that industrial synthetic stone China ink and the high-carbon composite micro-powder of 1 ~ 5mm stirs 5 ~ 10min in the stirrer middling speed with granularity; Then the modification compound thermal thermosetting resin that adds 5 ~ 8wt%, stir 5 ~ 15min in the stirrer middling speed, then high-speed stirring 10 ~ 15min; Pour finally all the other raw materials and remaining modification compound thermal thermosetting resin into, in the stirrer high speed, stir 10 ~ 15min, make highly-conductive hot carbon element ramming mass.
2. the preparation method of highly-conductive hot carbon element ramming mass according to claim 1, is characterized in that the fixed carbon 〉=99wt% of described industrial synthetic stone China ink, ash content≤0.3wt%.
3. the preparation method of highly-conductive hot carbon element ramming mass according to claim 1, is characterized in that the fixed carbon 〉=99wt% of described scale graphite, ash content≤0.4wt%; Granularity is 0.28 ~ 0.50mm.
4. the preparation method of highly-conductive hot carbon element ramming mass according to claim 1, is characterized in that the fixed carbon 〉=90wt% of described high-carbon composite micro-powder; Granularity≤0.074mm.
5. the preparation method of highly-conductive hot carbon element ramming mass according to claim 1, is characterized in that the stirring velocity that described middling speed stirs is 40r/min, and the stirring velocity of high-speed stirring is 60r/min.
6. a highly-conductive hot carbon element ramming mass, is characterized in that described highly-conductive hot carbon element ramming mass is the prepared highly-conductive hot carbon element ramming mass of preparation method of the described highly-conductive hot carbon element of any one ramming mass according to claim 1 ~ 5.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110041086A (en) * | 2019-05-13 | 2019-07-23 | 中冶武汉冶金建筑研究院有限公司 | A kind of flexible carbonaceous castable for furnace bottom screed-coat |
| CN112794724A (en) * | 2021-02-20 | 2021-05-14 | 中冶武汉冶金建筑研究院有限公司 | Directional heat-conducting carbon ramming mass and preparation method thereof |
| CN114455957A (en) * | 2022-02-18 | 2022-05-10 | 中冶武汉冶金建筑研究院有限公司 | Novel carbon ramming mass |
| CN114478034A (en) * | 2022-01-14 | 2022-05-13 | 中冶南方邯郸武彭炉衬新材料有限公司 | Environment-friendly high-thermal-conductivity carbon ramming material for blast furnace and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101823894A (en) * | 2010-04-30 | 2010-09-08 | 景书贤 | Baking-free carbon rammed mass and preparation method thereof |
| CN101823891A (en) * | 2010-04-16 | 2010-09-08 | 武汉钢铁(集团)公司 | Ramming material used in clearance at the bottom of blast furnace crucible |
| CN102603343A (en) * | 2012-04-10 | 2012-07-25 | 武汉科技大学 | Fireproof material of furnace bottom of blast furnace hearth and preparation method of fireproof material |
| WO2013034605A1 (en) * | 2011-09-09 | 2013-03-14 | Paul Wurth S.A. | Ramming mass for the refractory coating of a metallurgical vessel, method for implementing same and metallurgical vessel, in particular a blast furnace, comprising a coating using said ramming mass |
-
2013
- 2013-08-09 CN CN2013103447493A patent/CN103387401A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101823891A (en) * | 2010-04-16 | 2010-09-08 | 武汉钢铁(集团)公司 | Ramming material used in clearance at the bottom of blast furnace crucible |
| CN101823894A (en) * | 2010-04-30 | 2010-09-08 | 景书贤 | Baking-free carbon rammed mass and preparation method thereof |
| WO2013034605A1 (en) * | 2011-09-09 | 2013-03-14 | Paul Wurth S.A. | Ramming mass for the refractory coating of a metallurgical vessel, method for implementing same and metallurgical vessel, in particular a blast furnace, comprising a coating using said ramming mass |
| CN102603343A (en) * | 2012-04-10 | 2012-07-25 | 武汉科技大学 | Fireproof material of furnace bottom of blast furnace hearth and preparation method of fireproof material |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110041086A (en) * | 2019-05-13 | 2019-07-23 | 中冶武汉冶金建筑研究院有限公司 | A kind of flexible carbonaceous castable for furnace bottom screed-coat |
| CN110041086B (en) * | 2019-05-13 | 2021-07-13 | 中冶武汉冶金建筑研究院有限公司 | Flexible carbon castable for furnace bottom leveling layer |
| CN112794724A (en) * | 2021-02-20 | 2021-05-14 | 中冶武汉冶金建筑研究院有限公司 | Directional heat-conducting carbon ramming mass and preparation method thereof |
| CN114478034A (en) * | 2022-01-14 | 2022-05-13 | 中冶南方邯郸武彭炉衬新材料有限公司 | Environment-friendly high-thermal-conductivity carbon ramming material for blast furnace and preparation method thereof |
| CN114455957A (en) * | 2022-02-18 | 2022-05-10 | 中冶武汉冶金建筑研究院有限公司 | Novel carbon ramming mass |
| CN114455957B (en) * | 2022-02-18 | 2022-12-13 | 中冶武汉冶金建筑研究院有限公司 | Carbon ramming material |
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Application publication date: 20131113 |