CN101708994A - Masonry material for ladle of ferro-silicon-calcium electric furnace - Google Patents
Masonry material for ladle of ferro-silicon-calcium electric furnace Download PDFInfo
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- CN101708994A CN101708994A CN200910219244A CN200910219244A CN101708994A CN 101708994 A CN101708994 A CN 101708994A CN 200910219244 A CN200910219244 A CN 200910219244A CN 200910219244 A CN200910219244 A CN 200910219244A CN 101708994 A CN101708994 A CN 101708994A
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- ladle
- electric furnace
- silicon
- ferro
- masonry material
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Abstract
The invention relates to a high-temperature resistant masonry material for a ladle of a ferro-silicon-calcium electric furnace and a making method thereof. The making method of the masonry material for the ladle of the ferro-silicon-calcium electric furnace comprises the steps of: (1) adopting graphite bricks actively immersed with phosphoric acid; (2) bricking in a bundling mode to form a wall packing inner layer and preparing fire resistant cement into an outer layer by calcining smokeless coal particles; (3) tamping the bricked ladle; and (4) baking the ladle at 1000 DEG C to 1200 DEG C for 4 to 8 hours; keeping the temperature for later use at the temperature of 1000 DEG C to 1100 DEG C. Compared with a traditional masonry material, the masonry material for the ladle of the ferro-silicon-calcium electric furnace prolongs the service life of the ladle by three to five times.
Description
Technical field
The present invention relates to the refractory materials that ferroalloy smelting uses, specifically high temperature resistant building materials of ferro-silicon-calcium electric furnace foundry ladle and preparation method thereof.
Background technology
Small-sized silico-calcium stove taps a blast furnace 6-8 hour pitch time in smelting and producing.When coming out of the stove, molten iron temperature is very high, and every stove has 500-800kg.Little because of thermal capacity, pitch time is long, the quantity of slag is little, the hot metal ladle of splendid attire molten iron is a pot shape--the method for adopt electrode paste to make sintering firm by ramming, filling up a bed thickness 200mm quartz sand is again built the refractory materials of hot metal ladle by laying bricks or stones.Its cinder inclusion scale removal process and consumed time behind casting complete not too influences coming out of the stove of next stove.But for large-scale electrosmelting silico-calcium, went out the molten iron that a stove contains slag every 1.5-2 hour, every stove alloy liquid weight 2.4-2.8 ton, slag weight 0.8-1.2 ton.Slag proportion is because of bigger than alloy liquid, so be deposited on the bag end, molten iron temperature is up to (higher 300 ℃-500 ℃ than the temperature of other iron alloy kinds) more than 1900 ℃, the a large amount of high-temperature furnace gas of simultaneous is acutely discharged, and hot metal ladle will stand the common erosion and the impact of factors such as high temperature, chemistry, machinery, obviously, the refractory lining of the siliceous or high alumina matter that tradition adopts, its refractory temperature obviously holds the molten iron of can't stand more than 1900 ℃ and washes away erosion, very easily burns, and security is low.
Summary of the invention
The objective of the invention is to, provide a kind of large-scale electrosmelting silico-calcium to smelt building materials that can prolong hot metal ladle work-ing life greatly of usefulness and preparation method thereof.
The present invention is achieved in that
A. adopt the graphite brick of phosphate impregnation;
B. several graphite brick groups are pricked and be fixed into to a plurality of graphite brick hoops;
C. build the internal layer of the bag end, bag wall by laying bricks or stones with above-mentioned graphite brick group;
D. allocate refractory cements into the calcined anthracite grain, build the skin of hot metal ladle wall by laying bricks or stones; And compacting;
E.,, be placed on 1000-1200 ℃, toasted 3.5-4.5 hour the above-mentioned hot metal ladle that lays.Subsequently, under 1000 ℃-1100 ℃, heat preservation for standby use.。
The invention has the beneficial effects as follows: solved the problem that hot metal ladle is easily burnt preferably, reached 300 heats the work-ing life of cylinder-packing, more traditional building materials increases the service life 3-5 doubly, and cost is low.
Embodiment
Embodiment of narration does further narration to the present invention below.
1. use the graphite brick of phosphate impregnation;
2. the mode of Cai Yonging--with per five graphite bricks and close hoop and be bundled into one, fix it;
3. be bundled into the graphite brick of one with above-mentioned hoop, build the internal layer of hot metal ladle wall by laying bricks or stones;
Refractory cements)=75: 25 4. allocate refractory cements into the calcined anthracite grain, build the skin of hot metal ladle wall by laying bricks or stones, proportioning is (calcined anthracite a grain:;
5. tamp the hot metal ladle that lays with vibrating head;
6. with the above-mentioned hot metal ladle that lays, be placed under 1000-1200 ℃, toast after 4-8 hour, at 1000-1100 ℃, heat preservation for standby use.
Claims (2)
1. masonry material for ladle of ferro-silicon-calcium electric furnace and preparation method thereof, it is characterized in that: the electric furnace hot metal ladle adopts high temperature resistant building materials, and its making method is as follows:
A. adopt the graphite brick of phosphate impregnation;
B. several graphite brick groups are pricked and be fixed into to a plurality of graphite brick hoops;
C. build the bag end, bag wall by laying bricks or stones with above-mentioned graphite brick group, form internal layer;
D. allocate refractory cements into the calcined anthracite grain, build skin by laying bricks or stones; And compacting;
E.,, be placed on 1000-1200 ℃, toasted 3.5-4.5 hour the above-mentioned hot metal ladle that lays.Subsequently, under 1000 ℃-1100 ℃, heat preservation for standby use.
2. according to masonry material for ladle of the described ferro-silicon-calcium electric furnace of claim 1 and preparation method thereof, it is characterized in that: said skin is allocated refractory cements into the calcined anthracite grain, and the proportioning of the two is the calcined anthracite grain: refractory cements)=75: 25.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910219244A CN101708994A (en) | 2009-12-01 | 2009-12-01 | Masonry material for ladle of ferro-silicon-calcium electric furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910219244A CN101708994A (en) | 2009-12-01 | 2009-12-01 | Masonry material for ladle of ferro-silicon-calcium electric furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101708994A true CN101708994A (en) | 2010-05-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910219244A Pending CN101708994A (en) | 2009-12-01 | 2009-12-01 | Masonry material for ladle of ferro-silicon-calcium electric furnace |
Country Status (1)
| Country | Link |
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| CN (1) | CN101708994A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11542356B2 (en) | 2017-09-20 | 2023-01-03 | Basf Se | Method for producing polyisocyanates of (cyclo)aliphatic diisocyanates which are flocculation-stable in solvents |
| US11807709B2 (en) | 2016-10-07 | 2023-11-07 | Basf Se | Method for producing polyisocyanates of (cyclo)aliphatic diisocyanates which are flocculation-stable in solvents |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1096504A (en) * | 1993-06-18 | 1994-12-21 | 郭成正 | Ultralight, high temperature resistant, high-strength cement mortar |
| CN2236498Y (en) * | 1995-09-11 | 1996-10-02 | 马鞍山钢铁股份有限公司 | Composite refractory prefabricated block for metallurgic vessel |
| CN1948219A (en) * | 2006-11-07 | 2007-04-18 | 中钢集团吉林炭素股份有限公司 | High conductive high strength graphite brick for ultralarge blast furnace, its production technology and application |
| CN2905275Y (en) * | 2006-04-06 | 2007-05-30 | 武汉威林炉衬材料有限责任公司 | Liner of molten steel container and molten iron container |
| CN101462161A (en) * | 2009-01-09 | 2009-06-24 | 柳亚军 | Ladle |
-
2009
- 2009-12-01 CN CN200910219244A patent/CN101708994A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1096504A (en) * | 1993-06-18 | 1994-12-21 | 郭成正 | Ultralight, high temperature resistant, high-strength cement mortar |
| CN2236498Y (en) * | 1995-09-11 | 1996-10-02 | 马鞍山钢铁股份有限公司 | Composite refractory prefabricated block for metallurgic vessel |
| CN2905275Y (en) * | 2006-04-06 | 2007-05-30 | 武汉威林炉衬材料有限责任公司 | Liner of molten steel container and molten iron container |
| CN1948219A (en) * | 2006-11-07 | 2007-04-18 | 中钢集团吉林炭素股份有限公司 | High conductive high strength graphite brick for ultralarge blast furnace, its production technology and application |
| CN101462161A (en) * | 2009-01-09 | 2009-06-24 | 柳亚军 | Ladle |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11807709B2 (en) | 2016-10-07 | 2023-11-07 | Basf Se | Method for producing polyisocyanates of (cyclo)aliphatic diisocyanates which are flocculation-stable in solvents |
| US11542356B2 (en) | 2017-09-20 | 2023-01-03 | Basf Se | Method for producing polyisocyanates of (cyclo)aliphatic diisocyanates which are flocculation-stable in solvents |
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Application publication date: 20100519 |