CN203143925U - Improved electrode accident clamp of LF (Low Frequency) ladle refining furnace - Google Patents
Improved electrode accident clamp of LF (Low Frequency) ladle refining furnace Download PDFInfo
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- CN203143925U CN203143925U CN 201320000389 CN201320000389U CN203143925U CN 203143925 U CN203143925 U CN 203143925U CN 201320000389 CN201320000389 CN 201320000389 CN 201320000389 U CN201320000389 U CN 201320000389U CN 203143925 U CN203143925 U CN 203143925U
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- connecting rod
- clamp
- clamping plate
- refining furnace
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Abstract
The utility model relates to an electrode accident clamp of an LF (Low Frequency) ladle refining furnace, and belongs to the technical field of mechanical equipment of the LF ladle refining furnace. The electrode accident clamp is used for enhancing the success ratio of lifting a broken graphite electrode inside a ladle. The technical scheme is as follows: the electrode accident clamp comprises a lifting ring, an upper connecting rod, a lower connecting rod and cramps, wherein the upper connecting rod and the lower connecting rod are straight round steel rods, and the upper connecting rod and the lower connecting rod are parallelly and horizontally placed up and down within a same vertical plane; two same cramps are respectively connected with both ends of the upper connecting rod and the lower connecting rod; the planes of the two clamps are parallelly opposite; the jaws of the two clamps are positioned on a same axial line; the center line of each clamp is perpendicular to a horizontal surface; and the lifting ring is fixed on the center point position of the upper connecting rod. The electrode accident clamp of the LF ladle refining furnace, which is disclosed by the utility model, outstandingly enhances the success ratio of clamping and lifting the broken graphite electrode, reduces the labor intensity of operators, reduces the influence of the broken graphite electrode on the components and temperature of molten steel, ensures the molten steel quality and reduces the production cost.
Description
Technical field
The utility model relates to a kind of LF ladle refining furnace electrode accident clamp, belongs to LF ladle refining furnace mechanical equipment technical field.
Background technology
In LF ladle refining furnace production process, use graphite electrode that molten steel is carried out hyperthermic treatment.Graphite electrode is subjected to the thermal stress of electromagnetic force, mechanical strees, electrode interior and unexpected external force is done the time spent, and high-order fracture takes place in the easily the highest joint of graphite electrode columns under electrode jaw, or the connection location of graphite electrode and electrode jaw.After the high-order fracture of graphite electrode takes place in LF stove treating process, need in time with LF ladle refining furnace electrode accident clamp the graphite electrode in the steel ladle to be hung outside the steel ladle.From result of use, present LF ladle refining furnace electrode accident clamp has the following disadvantages:
1, LF ladle refining furnace electrode accident clamp only has single clamp to clamp the graphite electrode of high-order fracture, because post-rift graphite electrode length difference, be immersed in the angle difference in the steel ladle, the bare area difference, when using the LF ladle refining furnace electrode accident gripping mechanism that single clamp is arranged at present to clamp the electrode of fracture, be prone to clamp two side electrode weight energy imbalances, cause electrode after slinging to come off to drop in the steel ladle again or drop on the handling route, cause LF ladle refining furnace electrode accident clamp to clamp, the graphite electrode failure of slinging high-order fracture taking place.
2, use LF ladle refining furnace electrode accident gripping mechanism to clamp, before hanging out the graphite electrode of fracture, the clip position of electrode accident clamp could clamp the electrode that ruptures after need passing the interior slag blanket of steel ladle, because LF ladle refining furnace electrode accident gripping mechanism is normal temperature, after slag in the steel ladle contacts, slag is subjected to the cooling meeting and solidifies in the jaw face position of electrode accident clamp, slag after solidifying makes electrode accident clamp jaw face smooth, can reduce the friction force between post-rift electrode and the electrode accident clamp chuck, will reduce LF ladle refining furnace electrode accident clamp and clamp, sling the success ratio of the high-order graphite electrode that ruptures takes place.Repeated multiple times uses LF ladle refining furnace electrode accident clamp to hang out the graphite electrode operation of fracture, can strengthen labor intensity of operating personnel, can cause also that carbon content of molten steel increases, temperature reduces.
The utility model content
Technical problem to be solved in the utility model provides a kind of improved LF ladle refining furnace electrode accident clamp, clamp, sling the success ratio of the high-order graphite electrode that ruptures takes place with effective raising LF ladle refining furnace electrode accident clamp, reduce labor intensity of operating personnel, reduce carbon increasing amount and the temperature drop of molten steel, reduce the unplanned generation that stops watering the accident of melting down with molten steel of conticaster.
The technical scheme that solves the problems of the technologies described above is:
A kind of improved LF ladle refining furnace electrode accident clamp, it is become to form by suspension ring, upper connecting rod, lower connecting rod, plier groups, upper connecting rod and lower connecting rod are straight oval steel pole, upper connecting rod and lower connecting rod parallel, horizontal in same vertical plane surface is placed up and down, clamp is identical two, be connected to the two ends of upper connecting rod and lower connecting rod, two clamp plane parallel are relative, the jaw of two clamps is on same axis, the line of centers of each clamp is vertical with horizontal surface, and suspension ring are fixed on the center position of upper connecting rod.
Above-mentioned improved LF ladle refining furnace electrode accident clamp, described each clamp is by left connecting panel, right connecting panel, left side clamping plate, right clamping plate are formed, there is the axis hole of same apertures the upper end of left side connecting panel and right connecting panel, the upper end axis hole of left side connecting panel and right connecting panel is overlapping to be rotationally connected with upper connecting rod one end, the lower end of a left side connecting panel and right connecting panel by rotating shaft respectively with left clamping plate, the upper end of right clamping plate connects, there is the axis hole of same apertures at the middle part of left side clamping plate and right clamping plate, the middle part axis hole was overlapping after left side clamping plate and right clamping plate intersected is rotationally connected left clamping plate with lower connecting rod one end, relative arcuate serrated chuck is arranged at the bottom of right clamping plate.
Above-mentioned improved LF ladle refining furnace electrode accident clamp, the sawtooth of the arcuate serrated chuck of described each clamp be evenly distributed on the arc chuck and with the arc chuck be one, sawtooth height be 10-20mm, the arc length of sawtooth bottom is 10-15mm, sawtooth size is consistent.
Above-mentioned improved LF ladle refining furnace electrode accident clamp, on the left clamping plate of the homonymy of described each clamp, the right clamping plate towing pad is arranged respectively, two towing pads are respectively in the middle part of left clamping plate and right clamping plate rotating shaft bilateral symmetry distribution up and down, the internal diameter of towing pad is 15-40mm, the line of two towing pads is parallel with the line of centers of clamp, is installed with the connection iron wire between two towing pads.
Usefulness of the present utility model is:
The utility model is fixed a gripping mechanism respectively at the two ends of upper and lower pipe link, when having guaranteed that LF ladle refining furnace electrode accident clamp clamps, slings the graphite electrode that high-order fracture takes place on electrode distribution of weight to two clamp, weight non-equilibrium state when avoiding a clamp clamping takes place can effectively improve clamp and clamp, slings the success ratio of the high-order graphite electrode that ruptures takes place; The arcuate serrated chuck of two clamps has increased clamp and the interelectrode friction force of high-order fracture, can avoid the graphite electrode slippage, improves the success ratio that clamps, slings; Towing pad on the clamp of pipe link both sides can be controlled the opening angle of each clamp, also can improve clamp and clamp, slings the success ratio of the high-order graphite electrode that ruptures takes place.
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the front view of Fig. 1;
Fig. 3 is the lateral plan of Fig. 1.
Mark is as follows among the figure: suspension ring 1, upper connecting rod 2, lower connecting rod 3, left connecting panel 4, right connecting panel 5, left clamping plate 6, right clamping plate 7, towing pad 8, arcuate serrated chuck 9, graphite electrode 10.
The specific embodiment
The utility model is made up of suspension ring 1, upper connecting rod 2, lower connecting rod 3 and two clamps.
Show among the figure, upper connecting rod 2, lower connecting rod 3 are straight oval steel pole, upper connecting rod 2 and lower connecting rod 3 parallel, horizontal in same vertical plane surface is placed up and down, clamp is identical two, be connected to the two ends of upper connecting rod 2 and lower connecting rod 3, two clamp plane parallel are relative, and the jaw of two clamps is on same axis, the line of centers of each clamp is vertical with horizontal surface, and inverted U suspension ring 1 are fixed on the center position of upper connecting rod 2.
The graphite electrode 10 that adopts two clamps to clamp synchronously, sling and rupture, can avoid occurring the unbalanced phenomenon of clamp both sides graphite electrode 10 weight, guaranteed that double fastener clamps two side electrode weight balancings, significantly improved clamping, sling the success ratio of high-order fracture graphite electrode 10 takes place.
Show among the figure that each clamp is made up of left connecting panel 4, right connecting panel 5, left clamping plate 6, right clamping plate 7.There is the axis hole of same apertures the upper end of left side connecting panel 4 and right connecting panel 5, and the upper end axis hole of left connecting panel 4 and right connecting panel 5 is overlapping to be rotationally connected with upper connecting rod 2 one ends.The lower end of left side connecting panel 4 and right connecting panel 5 is connected with the upper end of left clamping plate 6, right clamping plate 7 respectively by rotating shaft.There is the axis hole of same apertures at the middle part of left side clamping plate 6 and right clamping plate 7, and left clamping plate 6 and right clamping plate 7 intersect, and middle part, the back axis hole that intersects is overlapping, and overlapping axis hole and lower connecting rod 3 one ends are rotationally connected.Adopt this structure, a parallelogram has been formed at left connecting panel 4, right connecting panel 5 and left clamping plate 6, right clamping plate 7 tops, and left clamping plate 6, right clamping plate 7 bottoms are along with the parallelogram folding.
Arcuate serrated chuck 9 is arranged respectively at the bottom of left side clamping plate 6, right clamping plate 7, even distribution sawtooth on the arcuate serrated chuck, and sawtooth one side of the arcuate serrated chuck 9 of the bottom of left clamping plate 6, right clamping plate 7 is relative, and graphite electrode 10 is clamped.
Adopt this arcuate serrated chuck 9, the slag that can avoid chuck to pass the slag blanket after coagulation in the steel ladle makes the smooth phenomenon of electrode accident clamp jaw face, increased the friction force between post-rift electrode and the electrode accident clamp chuck, can improve the success ratio of the graphite electrode of the clamping of LF ladle refining furnace electrode accident clamp, the high-order fracture of generation of slinging, reduce labor intensity of operating personnel, reduce post-rift electrode pair molten steel composition, Temperature Influence.
Show among the figure, on the left clamping plate 6 of the homonymy of each clamp, the right clamping plate 7 towing pad 8 is arranged respectively, two towing pad 8 bilateral symmetry distributions about the middle part rotating shaft of left clamping plate 6 and right clamping plate 7 respectively, the internal diameter of towing pad 8 is 15-40mm, the line of two towing pads 8 is parallel with the line of centers of clamp, between two towing pads 8 the connection iron wire is arranged.
By connect the towing pad 8 of single clamp with iron wire, can make clamp be in open state and A/F greater than graphite electrode 10 diameters, it is 500-650mm that the best is opened the back width.When using clamp to sling the graphite electrode 10 of fracture, arcuate serrated chuck 9 passes slag blanket and drops on directly over the post-rift graphite electrode 10, the iron wire that connects between the towing pad 8 is subjected to thermal destruction, and left clamping plate 6, the right clamping plate 7 of clamp close up downwards under the effect of self gravitation, clamp graphite electrode 10.After arcuate serrated chuck 9 clamps post-rift graphite electrode 10, overhead traveling crane or cantilever device for hoisting upwards lift suspension ring 1, because clamp is parallelogram sturcutre, more upwards draw the upper end, the lower end will more close up to the centre, clamp graphite electrode 10 more, can not open and come off, clamp can hang out post-rift graphite electrode 10 smoothly.
The portion size of an embodiment of the present utility model is as follows:
The round steel length 600-1000mm of upper connecting rod 2, lower connecting rod 3, round steel diameter of phi 40-80mm;
The height of the sawtooth of arcuate serrated chuck 9 is 10-20mm, and the arc length of sawtooth bottom is 10-15mm;
The diameter of towing pad 8 is 15-40mm, and the diameter of iron wire is 2-8mm.
Claims (4)
1. improved LF ladle refining furnace electrode accident clamp, it is characterized in that: it is by suspension ring (1), upper connecting rod (2), lower connecting rod (3), plier groups becomes to form, upper connecting rod (2) and lower connecting rod (3) are straight oval steel pole, upper connecting rod (2) and lower connecting rod (3) parallel, horizontal in same vertical plane surface are placed up and down, clamp is identical two, be connected to the two ends of upper connecting rod (2) and lower connecting rod (3), two clamp plane parallel are relative, the jaw of two clamps is on same axis, the line of centers of each clamp is vertical with horizontal surface, and suspension ring (1) are fixed on the center position of upper connecting rod (2).
2. improved LF ladle refining furnace electrode accident clamp according to claim 1, it is characterized in that: described each clamp is by left connecting panel (4), right connecting panel (5), left side clamping plate (6), right clamping plate (7) are formed, there is the axis hole of same apertures the upper end of left side connecting panel (4) and right connecting panel (5), the upper end axis hole of left side connecting panel (4) and right connecting panel (5) is overlapping to be rotationally connected with upper connecting rod (2) one ends, the lower end of a left side connecting panel (4) and right connecting panel (5) by rotating shaft respectively with left clamping plate (6), the upper end of right clamping plate (7) connects, there is the axis hole of same apertures at the middle part of left side clamping plate (6) and right clamping plate (7), the middle part axis hole was overlapping after left side clamping plate (6) and right clamping plate (7) intersected is rotationally connected left clamping plate (6) with lower connecting rod (3) one ends, relative arcuate serrated chuck (9) is arranged at the bottom of right clamping plate (7).
3. improved LF ladle refining furnace electrode accident clamp according to claim 1 and 2, it is characterized in that: the sawtooth of the arcuate serrated chuck (9) of described each clamp be evenly distributed on the arc chuck and with the arc chuck be one, sawtooth height be 10-20mm, the arc length of sawtooth bottom is 10-15mm, and the sawtooth size is consistent.
4. improved LF ladle refining furnace electrode accident clamp according to claim 3, it is characterized in that: on the left clamping plate (6) of the homonymy of described each clamp, the right clamping plate (7) towing pad (8) is arranged respectively, two towing pads (8) bilateral symmetry distribution about the middle part rotating shaft of left clamping plate (6) and right clamping plate (7) respectively, the internal diameter of towing pad (8) is 15-40mm, the line of two towing pads (8) is parallel with the line of centers of clamp, is installed with the connection iron wire between two towing pads (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320000389 CN203143925U (en) | 2013-01-02 | 2013-01-02 | Improved electrode accident clamp of LF (Low Frequency) ladle refining furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320000389 CN203143925U (en) | 2013-01-02 | 2013-01-02 | Improved electrode accident clamp of LF (Low Frequency) ladle refining furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203143925U true CN203143925U (en) | 2013-08-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320000389 Expired - Fee Related CN203143925U (en) | 2013-01-02 | 2013-01-02 | Improved electrode accident clamp of LF (Low Frequency) ladle refining furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203143925U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104192701A (en) * | 2014-08-31 | 2014-12-10 | 山西一建集团有限公司 | Arc-shaped pile head lifting clamp |
| CN106892344A (en) * | 2017-04-21 | 2017-06-27 | 绵竹市凯瑞机械加工有限公司 | Improve the clamp method of bolt the moving stability |
-
2013
- 2013-01-02 CN CN 201320000389 patent/CN203143925U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104192701A (en) * | 2014-08-31 | 2014-12-10 | 山西一建集团有限公司 | Arc-shaped pile head lifting clamp |
| CN106892344A (en) * | 2017-04-21 | 2017-06-27 | 绵竹市凯瑞机械加工有限公司 | Improve the clamp method of bolt the moving stability |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130821 Termination date: 20220102 |