CN102717060A - Pig-casting machine skimming casting process method - Google Patents
Pig-casting machine skimming casting process method Download PDFInfo
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- CN102717060A CN102717060A CN2012102424150A CN201210242415A CN102717060A CN 102717060 A CN102717060 A CN 102717060A CN 2012102424150 A CN2012102424150 A CN 2012102424150A CN 201210242415 A CN201210242415 A CN 201210242415A CN 102717060 A CN102717060 A CN 102717060A
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Abstract
The invention relates to cast iron manufacturing industry, and in particular relates to a pig-casting machine skimming casting process method. The method is characterized by comprising the steps of: firstly pouring less molten iron in a hot metal ladle sent by a blast furnace into a specially-made skimmer, closing a molten iron outlet gate of the skimmer, filling up the skimmer with the molten iron, leading the molten iron level to be always higher than a skimmer molten iron outlet, leading molten iron to rotate and dross to float upward, manually skimming the dross, then opening the molten iron outlet gate of the skimmer and increasing molten iron pouring amount as dross is contained in the molten iron and a firebrick wall at the molten iron outlet of the skimmer blocks the molten iron, leading the molten iron pouring amount to be higher than the amount of the skimmer molten iron outlet, leading the molten iron level to be always higher than the skimmer molten iron outlet, manually skimming dross in time, and leading purified molten iron to flow in a pig-casting mold of the pig-casting machine for casting. The pig-casting machine skimming casting process method solves the problems that dross contained on the surface of the cast iron products in the existing cast iron industry seriously influences the appearance quality and interior quality of the cast iron products, and is mainly applied for process improvement on casting production line of the pig-casting machine.
Description
(1) technical field: the present invention relates to the cast iron manufacturing industry, especially a kind of pig machine skimming casting process method.
(2) background technology: at present; Blast furnace, pig machine are located on the lines in the cast iron processing industry, and blast furnace is put the molten iron direct cast iron, always contain a small amount of slag when blast furnace is put molten iron and mix with molten iron and put into ladle and send pig machine cast iron; The problem that exists is: a) impurity and slag together flow into pig mold with molten iron in the molten iron; Can't distinguish and make the casting pig surperficial slag inclusion in back that is shaped, have a strong impact on casting pig presentation quality b) casting pig surface dregginess is big, adding man-hour as the semi-finished product associated user; Need through the secondary fusion process, iron block surface slag inclusion is not accepted by the client.
The (3) summary of the invention: the object of the invention will solve down existing blast-melted middle impurity exactly and slag together flows into pig mold with the molten iron mixing; Surperficial slag inclusion influenced the problem of the inside and outside quality of casting pig after the product casting pig was shaped, and a kind of economic, practical pig machine skimming casting process method is provided.
Concrete scheme of the present invention is: a kind of pig machine skimming casting process method, and it is characterized in that: the molten iron of at first blast furnace being sent here in the ladle is poured in the special skimming tool on a small quantity, closes the skimming tool molten iron and goes out port strobe; Make molten iron fill skimming tool, the molten iron liquid level is higher than the outlet of skimming tool molten iron, slag inclusion in the molten iron all the time; Because skimming tool molten iron exit refractory brickwork blocks molten iron; Make molten iron circle round in slag inclusion come-up, manual work removes scum silica frost, opens the skimming tool molten iron then and goes out port strobe and strengthen the molten iron amount of pouring into; Make the molten iron amount of pouring into all the time greater than skimming tool molten iron export volume; Make the molten iron liquid level be higher than skimming tool molten iron outlet all the time, manual work in time removes scum silica frost, pure molten iron is flowed in the pig mold of pig machine cast; Said skimming tool has a steel tank, and refractory brickwork has been built at the two ends of steel tank by laying bricks or stones, and the internal face of steel tank all is furnished with certain thickness refractory masses, and has the molten iron outlet in the refractory brickwork bottom of steel tank front end, is furnished with gate.
The outlet of molten iron described in the present invention is the circular hole of Φ 90mm, and its lower edge is positioned at the bottom of steel tank, and left and right sides centering is arranged.
The width B of steel tank described in the present invention is 750mm, and height h is 600mm; The refractory material layer thickness is 10-20mm.
The present invention adopts steel tank storage molten iron, and the manual work mode of skimming removes the gred, and the bottom at refractory brickwork is manufactured in the molten iron outlet, is higher than the molten iron outlet all the time to keep the molten iron liquid level; Scum silica frost is blocked by refractory brickwork swim on the molten iron liquid level, manual work removes scum silica frost, and pure molten iron flows out from the molten iron outlet, can guarantee not slag inclusion of iron block product surface.
The present invention compares with traditional handicraft, greatly reduces iron block product surface dregginess, has optimized the inside and outside quality of casting pig, and process of the present invention is easy, and is economical and practical, and the skimming effect is obvious.
The (4) description of drawings:
Fig. 1 is the structural representation of skimming tool of the present invention.
Among the figure: 1-refractory masses, 2-steel tank, 3-refractory brickwork, the outlet of 4-molten iron, 5-gate.
The (5) specific embodiment:
Employing the inventive method is carried out pig machine skimming technological process and is: the molten iron of at first blast furnace being sent here in the ladle is poured in the special skimming tool on a small quantity, closes the skimming tool molten iron and goes out port strobe, makes molten iron fill skimming tool; The molten iron liquid level is higher than the outlet of skimming tool molten iron all the time; Slag inclusion in the molten iron because skimming tool molten iron exit refractory brickwork blocks molten iron, make molten iron circle round in the slag inclusion come-up; Manual work removes scum silica frost; Open the skimming tool molten iron then and go out port strobe and strengthen the molten iron amount of pouring into, make the molten iron amount of pouring into, make the molten iron liquid level be higher than the outlet of skimming tool molten iron all the time all the time greater than skimming tool molten iron export volume; Manual work in time removes scum silica frost, pure molten iron is flowed in the pig mold of pig machine cast; Said skimming tool, referring to Fig. 1, it has a steel tank 2, and refractory brickwork 3 has been built at the two ends of steel tank 2 by laying bricks or stones, and the internal face of steel tank 2 all is furnished with certain thickness refractory masses 1, and has molten iron outlet 4 in refractory brickwork 3 bottoms of steel tank 2 front ends, is furnished with gate 5.
In the skimming tool of the present invention, said molten iron outlet 4 is the circular hole of Φ 90mm, and its lower edge is positioned at the bottom of steel tank 2, and left and right sides centering is arranged; Said steel tank 2 width B are 750mm, and height h is 600mm; Refractory masses 1 thickness is 10-20mm, concrete optional 15mm.
Claims (3)
1. pig machine skimming casting process method, it is characterized in that: the molten iron of at first blast furnace being sent here in the ladle is poured in the special skimming tool on a small quantity, closes the skimming tool molten iron and goes out port strobe; Make molten iron fill skimming tool, the molten iron liquid level is higher than the outlet of skimming tool molten iron, slag inclusion in the molten iron all the time; Because skimming tool molten iron exit refractory brickwork blocks molten iron; Make molten iron circle round in slag inclusion come-up, manual work removes scum silica frost, opens the skimming tool molten iron then and goes out port strobe and strengthen the molten iron amount of pouring into; Make the molten iron amount of pouring into all the time greater than skimming tool molten iron export volume; Make the molten iron liquid level be higher than skimming tool molten iron outlet all the time, manual work in time removes scum silica frost, pure molten iron is flowed in the pig mold of pig machine cast; Said skimming tool has a steel tank, and refractory brickwork has been built at the two ends of steel tank by laying bricks or stones, and the internal face of steel tank all is furnished with certain thickness refractory masses, and has the molten iron outlet in the refractory brickwork bottom of steel tank front end, is furnished with gate.
2. a kind of pig machine skimming casting process method according to claim 1 is characterized in that: said molten iron outlet is the circular hole of Φ 90mm, and its lower edge is positioned at the bottom of steel tank, and left and right sides centering is arranged.
3. a kind of pig machine skimming casting process method according to claim 1, it is characterized in that: said steel tank width B is 750mm, height h is 600mm; The refractory material layer thickness is 10-20mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102424150A CN102717060A (en) | 2012-07-13 | 2012-07-13 | Pig-casting machine skimming casting process method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102424150A CN102717060A (en) | 2012-07-13 | 2012-07-13 | Pig-casting machine skimming casting process method |
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| CN102717060A true CN102717060A (en) | 2012-10-10 |
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| CN2012102424150A Pending CN102717060A (en) | 2012-07-13 | 2012-07-13 | Pig-casting machine skimming casting process method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103223474A (en) * | 2013-05-24 | 2013-07-31 | 黄石新兴管业有限公司 | Casting strengthened drossing method of iron casting machine |
| CN104177106A (en) * | 2014-09-02 | 2014-12-03 | 吴雪健 | Preparation method of skimming device for use in blast-furnace tapping process |
Citations (9)
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|---|---|---|---|---|
| SU1135766A1 (en) * | 1983-01-26 | 1985-01-23 | Уральский научно-исследовательский институт черных металлов | Method for tapping melt from hearth steel smelting unit |
| JPH04110412A (en) * | 1990-08-30 | 1992-04-10 | Kawasaki Steel Corp | Method for separating slag at the time of discharging molten iron from torpedo car |
| US5472173A (en) * | 1990-07-31 | 1995-12-05 | Industrial Maintenance And Contract Services | Slag control method and apparatus |
| JP2002028773A (en) * | 2000-07-14 | 2002-01-29 | Nkk Corp | Method and device for removing slag in molten metal vessel |
| CN2550101Y (en) * | 2002-06-03 | 2003-05-14 | 承德新新钒钛股份有限公司 | Slag and iron separator for molten iron |
| CN2656424Y (en) * | 2003-09-26 | 2004-11-17 | 宝山钢铁股份有限公司 | Slag skimming device in iron storage type main ditch |
| CN2737800Y (en) * | 2004-10-01 | 2005-11-02 | 邯郸钢铁股份有限公司 | Slag skimmer |
| CN2928862Y (en) * | 2006-10-20 | 2007-08-01 | 佘成明 | Slag skimmer |
| CN102416447A (en) * | 2011-12-07 | 2012-04-18 | 云南文山斗南锰业股份有限公司 | Method and system for separating manganese-silicon casting iron scraps |
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2012
- 2012-07-13 CN CN2012102424150A patent/CN102717060A/en active Pending
Patent Citations (9)
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| SU1135766A1 (en) * | 1983-01-26 | 1985-01-23 | Уральский научно-исследовательский институт черных металлов | Method for tapping melt from hearth steel smelting unit |
| US5472173A (en) * | 1990-07-31 | 1995-12-05 | Industrial Maintenance And Contract Services | Slag control method and apparatus |
| JPH04110412A (en) * | 1990-08-30 | 1992-04-10 | Kawasaki Steel Corp | Method for separating slag at the time of discharging molten iron from torpedo car |
| JP2002028773A (en) * | 2000-07-14 | 2002-01-29 | Nkk Corp | Method and device for removing slag in molten metal vessel |
| CN2550101Y (en) * | 2002-06-03 | 2003-05-14 | 承德新新钒钛股份有限公司 | Slag and iron separator for molten iron |
| CN2656424Y (en) * | 2003-09-26 | 2004-11-17 | 宝山钢铁股份有限公司 | Slag skimming device in iron storage type main ditch |
| CN2737800Y (en) * | 2004-10-01 | 2005-11-02 | 邯郸钢铁股份有限公司 | Slag skimmer |
| CN2928862Y (en) * | 2006-10-20 | 2007-08-01 | 佘成明 | Slag skimmer |
| CN102416447A (en) * | 2011-12-07 | 2012-04-18 | 云南文山斗南锰业股份有限公司 | Method and system for separating manganese-silicon casting iron scraps |
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| Title |
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| 傅燕乐: "《高炉操作》", 28 February 2006, article "《高炉操作》" * |
| 全国经济管理院校等编: "《钢铁生产概论》", 30 September 1985, article "《钢铁生产概论》" * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103223474A (en) * | 2013-05-24 | 2013-07-31 | 黄石新兴管业有限公司 | Casting strengthened drossing method of iron casting machine |
| CN104177106A (en) * | 2014-09-02 | 2014-12-03 | 吴雪健 | Preparation method of skimming device for use in blast-furnace tapping process |
| CN104177106B (en) * | 2014-09-02 | 2016-03-09 | 吴雪健 | The preparation method of the skimming equipment in a kind of blast furnace casting process |
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Application publication date: 20121010 |