CN202047108U - Rotary heating furnace for vertical steel ingots of wind generator spindle - Google Patents
Rotary heating furnace for vertical steel ingots of wind generator spindle Download PDFInfo
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- CN202047108U CN202047108U CN2011201218566U CN201120121856U CN202047108U CN 202047108 U CN202047108 U CN 202047108U CN 2011201218566 U CN2011201218566 U CN 2011201218566U CN 201120121856 U CN201120121856 U CN 201120121856U CN 202047108 U CN202047108 U CN 202047108U
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- furnace
- furnace wall
- steel ingot
- driven generator
- wind driven
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Abstract
The utility model discloses a rotary heating furnace for vertical steel ingots of a wind generator spindle, which comprises a left furnace wall, a right furnace wall, a top furnace wall, a furnace bottom and a furnace door. A heat insulation layer is arranged in the furnace walls, a refractory brick layer is arranged at the bottom of the furnace, and coal gas nozzles are arranged on the lower portions of the left furnace wall and the right furnace wall. The rotary heating furnace is characterized in that a round rotary disc made of refractories is arranged in the middle of the furnace bottom, the interior lengths of the left furnace wall and the right furnace wall are 350cm while interior heights are 450cm, and the interior height of the rear furnace wall is 450cm while the interior width is 350cm. When the rotary heating furnace is used, a large end of a steel ingot of the wind generator spindle is placed downward to vertically be placed on the rotary disc. The steel ingot of the wind generator spindle is heated while rotating, surface heating is uniform, and thereby heat insulation time can be shortened, temperature rise speed and labor efficiency can be improved beneficially, energy consumption is saved, production cost is reduced, and steel materials are saved.
Description
Technical field
The utility model relates to a kind of improvement of process furnace of large-scale steel ingot, while specifically a kind of large-scale steel ingot that can make heats, does vertical revolution in process furnace, thereby the wind driven generator principal shaft steel ingot that improves degree of being heated evenly is erect rotary furnace.
Background technology
In the production of wind driven generator principal shaft, employed raw material is the large-scale steel ingot of frustum or frustum of a pyramid shape, and its base diameter is 85-123.1cm, and top diameter is 107-129.8cm, and length is 201-201.8 cm, heavy 13-27 ton.Need before the forging with large-scale process furnace heating, to reach needed forging temperature, this large-scale process furnace comprises left furnace wall, right furnace wall, furnace wall, back, top furnace wall, furnace bottom and fire door, the internal layer of furnace wall is equipped with thermal insulation layer, furnace bottom is a fire brick layer, bottom at left furnace wall and right furnace wall is provided with coal gas burner, the inner length of furnace wall, a left side, right furnace wall is 450cm, internal height is 350cm, the internal height of back furnace wall is 350cm, inner width is 350cm, and promptly the height of burner hearth and length and width are fit to the traverse of wind driven generator principal shaft steel ingot.When using this large-scale process furnace that the wind driven generator principal shaft steel ingot is heated, the wind driven generator principal shaft steel ingot need be sent in the stove along track by coaster, the wind driven generator principal shaft steel ingot is horizontal on furnace bottom, in order to make the wind driven generator principal shaft steel ingot not at the bottom of the contact oven, also rise with steel pad pad at the two ends of wind driven generator principal shaft steel ingot.Obviously, existing deficiency is when with this large-scale process furnace the wind driven generator principal shaft steel ingot being heated: 1, because the wind driven generator principal shaft steel ingot is motionless, and the flame direction of coal gas burner is a fixed, so, caused the inequality of being heated of wind driven generator principal shaft steel ingot; 2, in order to overcome the uneven shortcoming of being heated, the way that adopts is at present: in the different temperature periods, increase soaking time, as in 620 ℃-650 ℃ the process furnace that the wind driven generator principal shaft steel ingot under the room temperature is packed into the time, need insulation 8-12 hour, and with per hour 50-70 ℃ heat-up rate heating, be warming up to 830-860 ℃ then, be incubated 10-18 hour again, be warming up to 1200-1240 ℃ forging temperature again, just can come out of the stove, like this, just increase soaking time, reduced efficiency; 3, owing to adopted two steel pads, these two steel pads are in heat-processed, and all oxidations basically make wind driven generator principal shaft steel ingot under the hot state near furnace bottom, have not only influenced the being heated evenly property in later stage, and have caused the waste of steel.
Summary of the invention
The purpose of this utility model is to provide a kind of large-scale steel ingot that can make to turn round while heating, do to erect in process furnace, thereby improve degree of being heated evenly, and can enhance productivity, avoid steel waste, maneuverable wind driven generator principal shaft steel ingot to erect rotary furnace.
For reaching above purpose, the technical scheme that the utility model adopted is: this wind driven generator principal shaft steel ingot is erect rotary furnace, comprise left furnace wall, right furnace wall, back furnace wall, the furnace wall, top, furnace bottom and fire door, the internal layer of furnace wall is equipped with thermal insulation layer, furnace bottom is a fire brick layer, bottom at left furnace wall and right furnace wall is provided with coal gas burner, it is characterized in that: be provided with the round turntable that refractory materials is made at the middle part of furnace bottom, furnace wall, a left side, the inner length of right furnace wall is 350cm, internal height is 450cm, the internal height of back furnace wall is 450cm, inner width is 350cm, when the wind driven generator principal shaft steel ingot is heated, with the wind driven generator principal shaft steel ingot greatly upside down, be erected on the round turntable, erect revolution by the rotation drive wind driven generator principal shaft steel ingot of round turntable, thereby be implemented in heating on one side in the process furnace, setting is on one side rotated, and reaches to be heated evenly.By to the increasing and shorten of burner hearth, erect and place to adapt to the wind driven generator principal shaft steel ingot.
The utility model is also implemented by following measure: the diameter of described round turntable is 130cm, with the diameter at butt end of the wind driven generator principal shaft steel ingot that adapts to maximum specification; The thickness of round turntable is 50cm, with furnace bottom flame retardant coating consistency of thickness, its axle is a steel column, diameter is 100cm, weight with energy load-bearing wind electricity machine main shaft steel ingot, its length is 80cm, extend in the bottom space of furnace bottom, the fixing upper support disk in the bottom of axle, support disk is stuck in the circular groove of steel base, circular groove bottom at steel base is provided with circular slideway, steel ball on arranging in circular slideway can reduce rotary resistance under the load-bearing state, keeps stable rotation, on axle, be provided with gear, by the transmission chain transmission that is connected with the driving toothed gear of slowspeed machine.
Described slowspeed machine is arranged on the worktable of the process furnace outside, and like this, slowspeed machine turns round in the environment that is not heated, and can improve the work-ing life of slowspeed machine, and the velocity of rotation of slowspeed machine is 0.1 rev/min, and the rotating speed that drives round turntable is 0.1 rev/min.
Described wind driven generator principal shaft steel ingot in 620 ℃-650 ℃ the process furnace of packing under the room temperature, needs insulation earlier 3 hours, with per hour 60-80 ℃ heat-up rate heating, be warming up to 830-860 ℃ then, be incubated 3.5-7 hour again, be warming up to 1200-1240 ℃ forging temperature again, come out of the stove.
Match with it, the shove charge of wind driven generator principal shaft steel ingot can be adopted special-purpose fork truck with coming out of the stove.
The beneficial effects of the utility model are: with compare at process furnace internal heating wind driven generator principal shaft steel ingot at present, because wind driven generator principal shaft steel ingot limit is erect and is rotated, the limit heating, the surface is heated evenly, so two sections soaking times have shortened 5-9 hour respectively and 6.5-11 hour, can help improving simultaneously heat-up rate, shortened 15-20 hour the heat-up time of one stove, improve efficiency, saved energy consumption, reduced production cost; Owing to do not re-use the steel pad, so save steel yet.Owing to having adopted the fork truck shove charge and having come out of the stove, so easy to operate.
Description of drawings
Fig. 1 looks synoptic diagram for structure master of the present utility model.
Fig. 2 is the assembly structure office cross-sectional schematic of round turntable of the present utility model.
Fig. 3 is the view of the utility model wind driven generator principal shaft steel ingot shove charge.
Embodiment
Make the utility model with reference to Fig. 1,2.This wind driven generator principal shaft steel ingot is erect rotary furnace, comprise left furnace wall 1, right furnace wall 2, back furnace wall 3, furnace wall 4, top, furnace bottom 5 and fire door 6, the internal layer of furnace wall is equipped with thermal insulation layer, furnace bottom 5 is a fire brick layer, bottom at left furnace wall 1 and right furnace wall 2 is provided with coal gas burner 7, it is characterized in that: be provided with the round turntable 8 that refractory materials is made at the middle part of furnace bottom 5, furnace wall 1, a left side, the inner length of right furnace wall 2 is 350cm, internal height is 450cm, the internal height of back furnace wall 3 is 450cm, inner width is 350cm, during to 11 heating of wind driven generator principal shaft steel ingot, with wind driven generator principal shaft steel ingot 11 greatly upside down, be erected on the round turntable 8, rotation by round turntable 8 drives the 11 setting revolutions of wind driven generator principal shaft steel ingot, thereby is implemented in heating on one side in the process furnace, setting is on one side rotated, and reaches to be heated evenly.By to the increasing and shorten of burner hearth, erect and place to adapt to the wind driven generator principal shaft steel ingot.Fig. 3 has provided the state graph with 11 shove charges of wind driven generator principal shaft steel ingot, and wind driven generator principal shaft steel ingot 11 is erected on the round turntable 8 greatly upside down.
As improvement of the present utility model: the diameter of described round turntable 8 is 130cm, to adapt to the diameter at butt end of maximum wind driven generator principal shaft steel ingot; The thickness of round turntable 8 is 50cm, with furnace bottom 5 flame retardant coating consistency of thickness, its axle 81 is a steel column, diameter is 100cm, weight with energy load-bearing wind electricity machine main shaft steel ingot, its length of 81 is 80cm, extend in the bottom space of furnace bottom 5, the fixing upper support disk 82 in the bottom of axle 81, support disk 82 is stuck in the circular groove of steel base 83, circular groove bottom at steel base 83 is provided with circular slideway, steel ball 84 on arranging in circular slideway can reduce rotary resistance under the load-bearing state, keeps stable rotation, on axle 81, be provided with gear 85, by transmission chain 86 transmission that is connected with the driving toothed gear 10 of slowspeed machine 9, the rotation of slowspeed machine 9 can drive the rotation of axle 81, the rotation of axle 81 just drives the rotation of round turntable 8, erects revolution thereby drive wind driven generator principal shaft steel ingot 11.
Described slowspeed machine 9 is arranged on the worktable of the process furnace outside, like this, slowspeed machine 9 turns round in the environment that is not heated, can improve the work-ing life of slowspeed machine 9, the velocity of rotation of slowspeed machine 9 is 0.1 rev/min, the rotating speed that drives round turntable 8 is 0.1 rev/min, can realize speed governing by wheel box.
Described wind driven generator principal shaft steel ingot, pack under the room temperature in 620 ℃-650 ℃ the process furnace, be incubated 3 hours, then with per hour 60 ℃-80 ℃ heat-up rate heating, be warming up to 830 ℃-860 ℃, be incubated 3.5-7 hour again, be warming up to 1200 ℃-1240 ℃ again, adopt the special-purpose fork truck that matches with it to come out of the stove.
Claims (3)
1. the wind driven generator principal shaft steel ingot is erect rotary furnace, comprise left furnace wall (1), right furnace wall (2), back furnace wall (3), furnace wall (4), top, furnace bottom (5) and fire door (6), the internal layer of furnace wall is equipped with thermal insulation layer, furnace bottom (5) is a fire brick layer, bottom at left furnace wall (1) and right furnace wall (2) is provided with coal gas burner (7), it is characterized in that: be provided with the round turntable (8) that refractory materials is made at the middle part of furnace bottom (5), furnace wall (1), a left side, the inner length of right furnace wall (2) is 350cm, internal height is 450cm, the internal height of back furnace wall (3) is 450cm, and inner width is 350cm.
2. wind driven generator principal shaft steel ingot according to claim 1 is erect rotary furnace, and the diameter that it is characterized in that described round turntable (8) is 130cm; The thickness of round turntable (8) is 50cm, with furnace bottom (5) flame retardant coating consistency of thickness, its axle (81) is a steel column, diameter is 100cm, the length of its (81) is 80cm, extend in the bottom space of furnace bottom (5), the fixing upper support disk (82) in the bottom of axle (81), support disk (82) is stuck in the circular groove of steel base (83), circular groove bottom at steel base (83) is provided with circular slideway, steel ball (84) on arranging in circular slideway is provided with gear (85) on axle (81), by transmission chain (86) transmission that is connected with the driving toothed gear (10) of slowspeed machine (9).
3. wind driven generator principal shaft steel ingot according to claim 2 is erect rotary furnace, it is characterized in that described slowspeed machine (9) is arranged on the worktable of the process furnace outside, the velocity of rotation of slowspeed machine (9) is 0.1 rev/min, and the rotating speed that drives round turntable (8) is 0.1 rev/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201218566U CN202047108U (en) | 2011-04-23 | 2011-04-23 | Rotary heating furnace for vertical steel ingots of wind generator spindle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201218566U CN202047108U (en) | 2011-04-23 | 2011-04-23 | Rotary heating furnace for vertical steel ingots of wind generator spindle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202047108U true CN202047108U (en) | 2011-11-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201218566U Expired - Lifetime CN202047108U (en) | 2011-04-23 | 2011-04-23 | Rotary heating furnace for vertical steel ingots of wind generator spindle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202047108U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102181624A (en) * | 2011-04-23 | 2011-09-14 | 山东莱芜金雷风电科技股份有限公司 | Vertical rotary heating furnace of main shaft steel ingot for wind driven generator |
-
2011
- 2011-04-23 CN CN2011201218566U patent/CN202047108U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102181624A (en) * | 2011-04-23 | 2011-09-14 | 山东莱芜金雷风电科技股份有限公司 | Vertical rotary heating furnace of main shaft steel ingot for wind driven generator |
| CN102181624B (en) * | 2011-04-23 | 2012-09-19 | 山东莱芜金雷风电科技股份有限公司 | Vertical rotary heating furnace of main shaft steel ingot for wind driven generator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20111123 Effective date of abandoning: 20130227 |
|
| RGAV | Abandon patent right to avoid regrant |