CN203360482U - Split type water-cooling furnace mouth of revolving furnace - Google Patents
Split type water-cooling furnace mouth of revolving furnace Download PDFInfo
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- CN203360482U CN203360482U CN 201320274939 CN201320274939U CN203360482U CN 203360482 U CN203360482 U CN 203360482U CN 201320274939 CN201320274939 CN 201320274939 CN 201320274939 U CN201320274939 U CN 201320274939U CN 203360482 U CN203360482 U CN 203360482U
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Abstract
The utility model belongs to the technical field of revolving furnace equipment, and relates to a split type water-cooling furnace mouth of a revolving furnace, which is used for overcoming the defect that slag is prone to overflowing during the steel tapping process when a conventional round revolving furnace mouth is adopted. The technical scheme is that the split type water-cooling furnace mouth of the revolving furnace comprises four water-cooling blocks, outer arcs of the four water-cooling blocks are located on the same circumference; but an inner arc of one water-cooling block on the steel tapping side and inner arcs of other water-cooling blocks are not located on the same circumference, and the inner arc of the water-cooling block on the steel tapping side is partially higher than the inner arcs of other water-cooling blocks. According to the split type water-cooling furnace mouth of the revolving furnace, the inner diameter of the furnace mouth adopts a non-circular structure, the inner arc of the water-cooling block on the steel tapping side is higher than the inner arcs of the other three water-cooling blocks, so that compared with a traditional round furnace mouth, slag overflowing can be effectively controlled, the quantity of residual slags of the revolving furnace is guaranteed, and the defects of a traditional revolving furnace mouth are overcome; the four water-cooling blocks are fixed on a furnace casing by bolts, so that the furnace mouth is easier to maintain and replace, the work efficiency can be improved, and the labor intensity is reduced; and besides, the water-cooling blocks are formed through inblock cast of spheroidal graphite cast iron, and cooling water pipes are embedded respectively, so that the cooling effect and the service life of the water-cooling furnace mouth are guaranteed.
Description
Technical field
The utility model relates to a kind of furnace water-cooling mouth used on the steel-making converter body of heater, belongs to the converter installation technical field.
Background technology
Converter is one of most crucial production unit of iron and steel enterprise, converter is comprised of a series of equipment such as furnace shell, furnace lining, tilting system and anti-material, wherein furnace shell consists of furnace crown, shaft and furnace bottom, the BOF Hood top is fire door, fire door is typically designed to circle, damage distortion for slowing down fire door, fire door generally adopts the furnace water-cooling mouth mode, and furnace water-cooling mouth has water tank type and two kinds of structures of pipe embedded typ.Although most fire doors adopt the furnace water-cooling mouth structure, but fire door often is subject to high temperature to be washed away and clashes into, to hold one of flimsy equipment on furnace shell most, therefore changing furnace water-cooling mouth is to solve one of low maintenance measure of fire door life-span, for convenience of fire door, change, some converter mouth is designed to split-type structural, the member that fire door is divided into to two or more than two, change corresponding member when wherein a part goes wrong, will all not change by whole fire door, to save the treatment time and to reduce labour intensity.When converter tapping, due to tap hole in the furnace shell side, during the tapping of falling the stove, converter need to be shaken to almost to level angle, now circular converter mouth is similar to vertical with horizontal plane, during the tapping of falling the stove, slag and molten steel are all in the tapping side, slag and molten steel all have been full of from furnace bottom to furnace crown fire door position, under this kind of angle in stove slag surface general with fire door circumference lower-most point apart from very little, when misoperation or slag foamed when serious, slag can overflow from fire door, slag can be sprinkled upon on buggy ladle and surrounding devices, easily burn out equipment, cause disadvantageous effect to production, can reduce the remained converter slag amount simultaneously, be unfavorable for spattering slag operation, avoid if slag to overflow and change the converter angle, easily cause slag to mix out, steel quality is caused to disadvantageous effect.Current water-cooled circle fire door can't effectively solve the excessive slag problem of fire door, therefore needs a kind of Novel type converter mouth of design, the drawback existed to overcome traditional converter mouth, the problem of the excessive slag of solution fire door.
The utility model content
Technical problem to be solved in the utility model is to provide a kind of split type revolving furnace water-cooling mouth, and it can be on the basis that guarantees converter mouth water-cooled effect and fire door function, can efficient solution have decided the excessive slag problem of fire door in the steel process.
The technical scheme solved the problems of the technologies described above is:
A kind of split type revolving furnace water-cooling mouth, it is comprised of four fan-shaped water-cooled blocks, every water-cooled block outer arc length is quarter turn, four water-cooled block outer arcs form an isometrical circle configurations, wherein two water-cooled blocks are positioned at fire door gudgeon both sides, their water-cooled block medullary ray and gudgeon centerline are on the same medullary ray, other two water-cooled blocks lay respectively at tapping side and charging side, their the water-cooled block medullary ray fire door centerline vertical with the gudgeon medullary ray is on the same medullary ray, gudgeon both sides water-cooled block is identical with the radius-of-curvature of the inner arc of charging side water-cooled block, they are connected to same circumference, the radius-of-curvature of tapping side water-cooled block inner arc is greater than the radius-of-curvature of other three water-cooled blocks, the inner arc two ends of its water-cooled block are connected with the inner arc two ends of gudgeon both sides water-cooled block, the inner arc of tapping side water-cooled block is in the inboard in the close center of circle of circumference of the inner arc composition of other three water-cooled blocks.
Above-mentioned split type revolving furnace water-cooling mouth, the circumference at the inner arc lower-most point of described tapping side water-cooled block and the inner arc place of other three water-cooled blocks has certain vertical range, 4% ~ 8% of the circle diameter that the value of vertical range is other three water-cooled block inner arcs compositions.
Above-mentioned split type revolving furnace water-cooling mouth, described every water-cooled block forms by Unitary ductile iron, buries respectively water-cooled tube in every water-cooled block underground.
Above-mentioned split type revolving furnace water-cooling mouth, have respectively water-cooled block be fixed on to the bolt hole on furnace shell on described every water-cooled block outer arc, and the quantity of bolt hole is 6 ~ 10.
The beneficial effects of the utility model are:
Because the fire door internal diameter is non-circular structure, therefore tapping side water-cooled block inner arc will can effectively be controlled the excessive of slag and guarantee the remained converter slag amount than traditional circular fire door higher than the inner arc of other three water-cooled blocks, has overcome the drawback that traditional converter mouth exists., owing to adopting four water-cooled block unitized constructions, and all be fixed by bolts on furnace shell simultaneously, make fire door maintenance and replacing more easy, can increase substantially working efficiency and reduce labour intensity.In addition, every water-cooled block forms by Unitary ductile iron, and buries respectively seamless steel tubes and pipes for high pressure boiler underground for logical water coolant, has guaranteed cooling performance and the work-ing life of furnace water-cooling mouth.
The accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure, mark is as follows: part 5, water-cooled tube 6, bolt hole 7, gudgeon medullary ray 8, fire door medullary ray 9 that gudgeon side water-cooled block 1, charging side water-cooled block 2, gudgeon side water-cooled block 3, tapping side water-cooled block 4, tapping side water-cooled block exceed than other water-cooled block.
Embodiment
Furnace water-cooling mouth of the present utility model is comprised of four fan-shaped water-cooled blocks altogether, and every water-cooled block outer arc length is quarter turn, and four water-cooled block outer arcs form a circle configurations.Wherein two water-cooled blocks are positioned at fire door gudgeon both sides, are respectively gudgeon side water-cooled block 1, gudgeon side water-cooled block 3, and their water-cooled block medullary ray and gudgeon medullary ray 8 are on the same medullary ray.Other two water-cooled blocks are respectively charging side water-cooled block 2, tapping side water-cooled block 4, are positioned at charging side and tapping side, and their the water-cooled block medullary ray fire door medullary ray 9 vertical with gudgeon medullary ray 8 is on the same medullary ray.
In four water-cooled blocks, gudgeon side water-cooled block 1, gudgeon side water-cooled block 3 is identical with physical dimension and the internal structure of charging side water-cooled block 2, the outer arc of their water-cooled block covering of the fan and inner arc are all on same circumference, and tapping side water-cooled block 4 is distinguished to some extent with other three water-cooled block physical dimension, the outer arc of tapping side water-cooled block 4 covering of the fans and other water-cooled block outer arc are on same circumference, and inner arc and other water-cooled block inner arc be not on same circumference, for one section circular arc on another circumference, the center of circle of this circumference center of circle and other three water-cooled block place circumference is all on the fire door medullary ray 9 vertical with gudgeon medullary ray 8.The inner arc of tapping side water-cooled block 4 will be higher than the inner arc of other three water-cooled blocks, and the circumference at the inner arc place of lower-most point and other three water-cooled blocks has certain vertical range H, and the H value is 4% ~ 8% of other three water-cooled block circle diameters of living in.
Every water-cooled block forms by Unitary ductile iron, buries respectively seamless steel tubes and pipes for high pressure boiler in every water-cooled block underground for logical water coolant, and is respectively equipped with bolt hole on every water-cooled block outer arc, for water-cooled block is fixed on to furnace shell.The quantity of the bolt hole on every water-cooled block outer arc is 6 ~ 10.
The 100 tons of steel-making converter furnace water-cooling mouths used of take are example, and specific embodiment is as follows:
100 tons of converter furnace water-cooling mouths used are comprised of 4 water-cooled blocks, and four water-cooled blocks are respectively gudgeon side water-cooled block 1 and gudgeon side water-cooled block 3, charging side water-cooled block 2 and 4, the four water-cooled block outer arcs of side water-cooled block of tapping and form a circle configurations.
The vertical range of the circumference at the inner arc lower-most point of tapping side water-cooled block 4 and the inner arc place of other three water-cooled blocks is 150mm, other three water-cooled block circle diameters of living in are 2775mm, the vertical range of the circumference at the inner arc lower-most point of the side of tapping water-cooled block 4 and the inner arc place of other three water-cooled blocks for other three water-cooled block circle diameters of living in 5.4%.
Every water-cooled block in furnace water-cooling mouth forms by Unitary ductile iron, and the part 5 that the side of wherein tapping water-cooled block exceeds than other water-cooled block is also cast with tapping side water-cooled block 4 body integral body as the part of tapping side water-cooled block 4.In every water-cooled block, bury underground respectively high-duty boiler with the water-cooled tube 6 of snakelike weldless steel tube for logical water coolant, and be respectively equipped with bolt hole 7 on every water-cooled block outer arc, the quantity of bolt hole 7 is 8, for water-cooled block is fixed on to furnace shell.
Claims (4)
1. a split type revolving furnace water-cooling mouth, it is characterized in that: it is comprised of four fan-shaped water-cooled blocks, every water-cooled block outer arc length is quarter turn, four water-cooled block outer arcs form an isometrical circle configurations, wherein two water-cooled blocks are positioned at fire door gudgeon both sides, their water-cooled block medullary ray and gudgeon medullary ray (8) are on the same medullary ray, other two water-cooled blocks lay respectively at tapping side and charging side, their the water-cooled block medullary ray fire door medullary ray (9) vertical with gudgeon medullary ray (8) is on the same medullary ray, gudgeon both sides water-cooled block is identical with the radius-of-curvature of the inner arc of charging side water-cooled block (2), they are connected to same circumference, the radius-of-curvature of the inner arc of tapping side water-cooled block (4) is greater than the radius-of-curvature of other three water-cooled blocks, the inner arc two ends of its water-cooled block are connected with the inner arc two ends of gudgeon both sides water-cooled block, the inner arc of tapping side water-cooled block (4) is in the inboard in the close center of circle of circumference of the inner arc composition of other three water-cooled blocks.
2. split type revolving furnace water-cooling mouth according to claim 1, it is characterized in that: the circumference at the inner arc lower-most point of described tapping side water-cooled block (4) and the inner arc place of other three water-cooled blocks has certain vertical range, 4% ~ 8% of the circle diameter that the value of vertical range is other three water-cooled block inner arcs compositions.
3. split type revolving furnace water-cooling mouth according to claim 2, it is characterized in that: described every water-cooled block forms by Unitary ductile iron, buries respectively water-cooled tube (6) in every water-cooled block underground.
4. split type revolving furnace water-cooling mouth according to claim 3, it is characterized in that: have respectively water-cooled block is fixed on to the bolt hole (7) on furnace shell on described every water-cooled block outer arc, the quantity of bolt hole (7) is 6 ~ 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320274939 CN203360482U (en) | 2013-05-20 | 2013-05-20 | Split type water-cooling furnace mouth of revolving furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320274939 CN203360482U (en) | 2013-05-20 | 2013-05-20 | Split type water-cooling furnace mouth of revolving furnace |
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| Publication Number | Publication Date |
|---|---|
| CN203360482U true CN203360482U (en) | 2013-12-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201320274939 Expired - Fee Related CN203360482U (en) | 2013-05-20 | 2013-05-20 | Split type water-cooling furnace mouth of revolving furnace |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108823354A (en) * | 2018-07-19 | 2018-11-16 | 柳州市创科复合金属陶瓷制品有限公司 | Combined converter mouth |
| CN108913842A (en) * | 2018-07-19 | 2018-11-30 | 柳州市创科复合金属陶瓷制品有限公司 | Method for manufacturing combined converter mouth |
| CN111647710A (en) * | 2020-07-06 | 2020-09-11 | 山东省冶金设计院股份有限公司 | Water-cooling long-life converter tapping hole |
| CN112501386A (en) * | 2019-09-16 | 2021-03-16 | 江苏集萃冶金技术研究院有限公司 | Molten iron 'three-removing' pretreatment furnace and equipment |
-
2013
- 2013-05-20 CN CN 201320274939 patent/CN203360482U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108823354A (en) * | 2018-07-19 | 2018-11-16 | 柳州市创科复合金属陶瓷制品有限公司 | Combined converter mouth |
| CN108913842A (en) * | 2018-07-19 | 2018-11-30 | 柳州市创科复合金属陶瓷制品有限公司 | Method for manufacturing combined converter mouth |
| CN108913842B (en) * | 2018-07-19 | 2020-05-05 | 柳州市创科复合金属陶瓷制品有限公司 | Method for manufacturing combined converter mouth |
| CN108823354B (en) * | 2018-07-19 | 2024-02-13 | 柳州市创科复合金属陶瓷制品有限公司 | Combined converter mouth |
| CN112501386A (en) * | 2019-09-16 | 2021-03-16 | 江苏集萃冶金技术研究院有限公司 | Molten iron 'three-removing' pretreatment furnace and equipment |
| CN111647710A (en) * | 2020-07-06 | 2020-09-11 | 山东省冶金设计院股份有限公司 | Water-cooling long-life converter tapping hole |
| CN111647710B (en) * | 2020-07-06 | 2024-05-14 | 山东省冶金设计院股份有限公司 | Water-cooling long-life converter tapping hole |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131225 |
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| CF01 | Termination of patent right due to non-payment of annual fee |