CN204148253U - A kind of hot rolled seamless steel tube Directed cooling equipment - Google Patents
A kind of hot rolled seamless steel tube Directed cooling equipment Download PDFInfo
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- CN204148253U CN204148253U CN201420561791.0U CN201420561791U CN204148253U CN 204148253 U CN204148253 U CN 204148253U CN 201420561791 U CN201420561791 U CN 201420561791U CN 204148253 U CN204148253 U CN 204148253U
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- cooling
- electromagnetic induction
- guide pin
- steel tube
- pin bushing
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 70
- 239000010959 steel Substances 0.000 title claims abstract description 70
- 238000001816 cooling Methods 0.000 title claims abstract description 64
- 230000005674 electromagnetic induction Effects 0.000 claims abstract description 47
- 238000003801 milling Methods 0.000 claims abstract description 35
- 239000000498 cooling water Substances 0.000 claims abstract description 32
- 238000005096 rolling process Methods 0.000 claims abstract description 20
- 230000033228 biological regulation Effects 0.000 claims abstract description 5
- 239000007921 spray Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 description 5
- 238000005242 forging Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 206010027146 Melanoderma Diseases 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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Abstract
The utility model relates to steel pipe technical field of processing equipment, a kind of hot rolled seamless steel tube Directed cooling equipment is provided, this hot rolled seamless steel tube Directed cooling equipment comprises guider and cooling device, guider comprises outlet guide pin bushing and some frame backstages axis tile, milling train main frame exports, the center of the outlet U-shaped gathering sill of guide pin bushing and the guiding cavity of backstage axis tile is on a rolling centerline, cooling device comprises cooling pipe and is arranged on the electromagnetic induction valve on cooling pipe, electromagnetic induction valve is according to milling train main frame Load Regulation cooling water injecting time, thus realize the cooling of guider, prevent guider temperature too high, steel pipe steel bonding and steel tube surface is caused to form the phenomenon scratched, simultaneously, improve the uniformity of steel tube surface chilling temperature, improve the evenness of wall thickness of seamless steel pipe and the uniformity of performance.
Description
Technical field
The utility model belongs to steel pipe technical field of processing equipment, particularly relates to a kind of hot rolled seamless steel tube Directed cooling equipment.
Background technology
During hot rolling (oblique milling) seamless steel tube production, steel billet is by operations such as annular furnace heating, punch perforation, enter mill milling, general hollow billet length between 5-10m, the waste length of tube after rolling completes between 10-25m, because oblique milling process belongs to High Rotation Speed rolling, in the operation of rolling, hollow forging very easily gets rid of and curvedly gets rid of flat, and the waste product of falling behind in the middle of being formed, generally adds guide device such as outlet guide pin bushing, axis tile etc. on milling train backstage.Hollow forging temperature in the operation of rolling is at about 850-1000 DEG C, belong to high temperature deformation, in high speed axial-rotation and process extending longitudinally, the contact friction repeatedly of steel pipe and guide device, its temperature is raised, outlet guide pin bushing, the axis tile of high temperature easily bond steel tube surface metal again, stick to the projection that guide device surface forms tip shape, thus cause surface tear to the steel pipe of rolling below.
For the problem that milling train backstage scratches, general solution, for increasing cooling water, makes backstage guide device be cooled fully, avoids steel bonding.The pure process of rolling of steel pipe is High Rotation Speed and vertical progressive process, cooling water splash is to its surface, got rid of by steel pipe or apply uniformly, the even property of the inhomogeneous cooling of steel pipe can not be caused, when rolling completes, steel pipe has 5-10 to wait for the de-rod time in second on milling train backstage, steel pipe belongs to inactive state substantially during this period of time, now cooling water continues cooling, steel tube surface local temperature drop can be caused too fast, form stain or large blackspot, outer surface bulk temperature is uneven, in postorder deformation process, thickness of steel pipe change is inconsistent, form the even property of wall unevenness of final products, and because finishing temperature is uneven, cause steel pipe mechanical performance uneven.
Utility model content
The purpose of this utility model is to provide a kind of hot rolled seamless steel tube Directed cooling equipment, be intended to solve steel tube surface in prior art easily scratched by milling train backstage, and easily cause the wall unevenness of tube product even by the mode increasing cooling water, finally cause the problem that steel pipe mechanical performance is uneven.
The utility model realizes like this, a kind of hot rolled seamless steel tube Directed cooling equipment, described hot rolled seamless steel tube Directed cooling equipment comprises the guider being arranged on the outlet of milling train main frame to carry out spraying the cooling device cooled with being arranged on above described guider and to steel pipe, wherein:
Described guider comprises the outlet guide pin bushing led to the steel pipe departing from the outlet of described milling train main frame, and some frame backstages axis tile, it is U-shaped U-shaped gathering sill that described outlet guide is arranged with cross section, the guiding cavity that described backstage axis tile comprises three axis tiles and is made up of three described axis tiles, described in some framves, backstage axis tile becomes gap arrangement to arrange, and the center of the outlet of described milling train main frame, U-shaped gathering sill and guiding cavity is on a rolling centerline;
Described cooling device comprises cooling pipe, described cooling pipe extends past directly over described backstage axis tile and outlet guide pin bushing from cooling water outlet, described cooling pipe is provided with the electromagnetic induction valve according to described milling train main frame Load Regulation cooling water injecting time, and described electromagnetic induction valve is connected with described rolling mill main electrical-mechanical.
As a kind of improved plan, described outlet guide pin bushing is also provided with the guide pin bushing base supported described U-shaped gathering sill.
As a kind of improved plan, described backstage axis tile also comprises the axis tile bracing frame for supporting three described axis tiles.
As a kind of improved plan, described cooling pipe comprises cooling water main pipeline and cooling water lateral, and described cooling water lateral connects corresponding spray head.
As a kind of improved plan, described electromagnetic induction valve is provided with one, and is arranged on described cooling water main pipeline.
As a kind of improved plan, described electromagnetic induction valve is provided with the guide pin bushing electromagnetic induction valve corresponding with described outlet guide pin bushing, and several axis tile electromagnetic induction valves corresponding with backstage axis tile, described guide pin bushing electromagnetic induction valve and described axis tile electromagnetic induction valve are separately positioned on corresponding described cooling water lateral.
Because hot rolled seamless steel tube Directed cooling equipment comprises guider and cooling device, guider comprises outlet guide pin bushing and some frame backstages axis tile, milling train main frame exports, the center of the outlet U-shaped gathering sill of guide pin bushing and the guiding cavity of backstage axis tile is on a rolling centerline, cooling device comprises cooling pipe and is arranged on the electromagnetic induction valve on cooling pipe, electromagnetic induction valve is according to milling train main frame Load Regulation cooling water injecting time, thus realize the cooling of guider, prevent guider temperature too high, steel pipe steel bonding and steel tube surface is caused to form the phenomenon scratched, simultaneously, improve the uniformity of steel tube surface chilling temperature, improve the evenness of wall thickness of seamless steel pipe and the uniformity of performance.
Because magnetic valve is provided with the guide pin bushing electromagnetic induction valve corresponding with described outlet guide pin bushing, and several axis tile electromagnetic induction valves corresponding with backstage axis tile, described guide pin bushing electromagnetic induction valve and described axis tile electromagnetic induction valve are separately positioned on corresponding described cooling water lateral, solve the problem of seamless steel pipe non-uniform temperature further, realize seamless steel pipe bulk temperature homogenising more.
Accompanying drawing explanation
Fig. 1 is the structural representation of the hot rolled seamless steel tube Directed cooling equipment that the utility model embodiment one provides;
Fig. 2 and Fig. 3 is the structural representation of the outlet guide pin bushing that the utility model provides;
Fig. 4 and Fig. 5 is the structural representation of the backstage axis tile that the utility model provides;
Fig. 6 is the structural representation of the hot rolled seamless steel tube Directed cooling equipment that the utility model embodiment two provides;
Wherein, 1-guider, 2-cooling device, 3-steel pipe, 4-exports guide pin bushing, 41-U type gathering sill, 42-guide pin bushing base, 5-backstage axis tile, 51-axis tile, 52-leads cavity, 53-axis tile bracing frame, 6-cooling pipe, 61-cooling water main pipeline, 62-cooling water lateral, 63-spray head, 7-electromagnetic induction valve, 71-guide pin bushing electromagnetic induction valve, 72-axis tile electromagnetic induction valve, 8-milling train main frame, 81-milling train main frame exports.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
Fig. 1 shows the structural representation of the hot rolled seamless steel tube Directed cooling equipment that the utility model embodiment one provides, and for convenience of explanation, only gives the part relevant to the utility model in figure.
Hot rolled seamless steel tube Directed cooling equipment comprises the guider 1 being arranged on the outlet of milling train main frame to carry out spraying the cooling device 2 cooled with being arranged on above described guider 1 and to steel pipe 3, wherein:
As shown in Figures 2 to 5, guider 1 comprises the outlet guide pin bushing 4 led to the steel pipe 3 departing from described milling train main frame outlet 81, and some frame backstages axis tile 5, it is U-shaped U-shaped gathering sill 41 that described outlet guide pin bushing 4 is provided with cross section, the guiding cavity 52 that described backstage axis tile 5 comprises three axis tiles 51 and is made up of three described axis tiles 51, the center of described milling train main frame outlet 81, U-shaped gathering sill 41 and guiding cavity 52 is on a rolling centerline (in figure shown in AA line);
Described cooling device 2 comprises cooling pipe 6, described cooling pipe 6 extends past directly over described backstage axis tile 5 and outlet guide pin bushing 4 from cooling water outlet, described cooling pipe 6 is provided with the electromagnetic induction valve 7 according to described milling train main frame 8 Load Regulation cooling water injecting time, and described electromagnetic induction valve 7 is electrically connected with described milling train main frame 8.
In the utility model, as shown in Figure 3, outlet guide pin bushing 4 is also provided with the guide pin bushing base 42 supported described U-shaped gathering sill 41, realization is to the support of this U-shaped gathering sill 41 and adjustment etc., certainly, outlet guide pin bushing 4 also can comprise other components, does not repeat them here, but not in order to limit the utility model.
In the utility model, as shown in Figure 5, backstage axis tile 5 also comprises the axis tile bracing frame 53 for supporting three described axis tiles 51, this axis tile bracing frame 53 is for carrying out the operations such as adjustment to the size of this guiding cavity 52, certainly, this backstage axis tile 5 also can comprise other components, does not repeat them here, but not in order to limit the utility model.
In the utility model, outlet guide pin bushing 4 cross section is U-shaped, long about 1.5m, is close to milling train main frame outlet 81, for playing the guiding role when steel pipe 3 has just gone out milling train; Backstage axis tile 5 has 8 framves, every frame forms guiding cavity 52 by 3 axis tiles 51, the large I of guiding cavity 52 regulates with steel pipe 3 specification, after being connected in outlet guide pin bushing 4, be the arrangement of axial clearance formula along rolling centerline, long about 22m, now whole guider 1 about overall length 23.5m altogether, guiding and supporting role are played in the smooth rolling for steel pipe 3.
In the utility model, cooling pipe 6 can configure as follows, and cooling pipe 6 comprises cooling water main pipeline 61 and cooling water lateral 62, and described cooling water lateral 62 connects corresponding spray head 63.
In the above-described embodiments, arranging of electromagnetic induction valve 7 can set according to actual conditions, mainly comprises two kinds of situations:
The first situation, as shown in Figure 1, electromagnetic induction valve 7 is arranged on cooling main pipeline 61;
Second case, as shown in Figure 6, is specially:
Electromagnetic induction valve 7 is provided with the guide pin bushing electromagnetic induction valve 71 corresponding with described outlet guide pin bushing 4, and several axis tile electromagnetic induction valves 72 corresponding with backstage axis tile 5, described guide pin bushing electromagnetic induction valve 71 and described axis tile electromagnetic induction valve 72 are separately positioned on corresponding described cooling water lateral 62;
Electromagnetic induction valve 7 is set to guide pin bushing electromagnetic induction valve 71 and axis tile electromagnetic induction valve 72, for solving lower, the middle high problem in seamless steel pipe 3 finishing temperature two ends, by corresponding programme-control, injection cooling is carried out in the different time, and different control of to spray, avoid steel pipe 3 two ends temperature to reduce too fast, reach the requirement of bulk temperature uniformity.
Wherein, electromagnetic induction valve 7 and milling train main frame 8 are connected, and controlled by milling train main frame 8 payload by its switch of encoding setting, when milling train main frame 8 electric current is greater than 800A, switching signal is sent to electromagnetic induction valve 7, control electromagnetic induction valve 7 to open, cooling starts, and because trapezoidal rolling carried out by milling train main frame 8, namely mill speed is nipped and to throw steel slow, intermediate stable rolldown speed is fast, when trapezoidal rolling terminates, when milling train main frame 8 speed reduces, again send switching signal to electromagnetic induction valve 7, electromagnetic induction valve 7 cuts out, stops cooling.
In the utility model, the cooling that hot rolled seamless steel tube Directed cooling equipment realizes guider 1 can ensure again the uniformity of steel pipe 3 temperature, key is the switch time of controlled cooling model water, namely process and main frame standby period is rolled steel pipe 3 is pure, open cooling water, during de-rod waited for by steel pipe 3, close cooling water can realize, by adding one or several electromagnetic induction valves 7, it is made to respond to milling train main frame 8 rolling load, when rolling is carried out, main unit load is larger, electromagnetic induction valve 7 controlled cooling model water pipe works, at the end of rolling just, electromagnetic induction valve 7 responds to its change and cuts out by cooling water pipe, effectively avoid the time period under steel pipe inactive state, until steel pipe hauled out roller-way conveying leave after, electromagnetic induction valve 7 switch opens, equipment continues cooling.
In summary, the utility model effectively can solve the cooling of guide device and avoid the appearance of the even phenomenon of steel tube surface inhomogeneous cooling, improve tube quality, and magnetic valve installation and debugging is simple to operation.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.
Claims (6)
1. a hot rolled seamless steel tube Directed cooling equipment, it is characterized in that, described hot rolled seamless steel tube Directed cooling equipment comprise be arranged on milling train main frame outlet (81) guider (1) and be arranged on described guider (1) top and to steel pipe carry out spray cool cooling device (2), wherein:
Described guider (1) comprises the outlet guide pin bushing (4) led to the steel pipe departing from described milling train main frame outlet (81), and some frame backstages axis tile (5), it is U-shaped U-shaped gathering sill (41) that described outlet guide pin bushing (4) is provided with cross section, the guiding cavity (52) that described backstage axis tile (5) comprises three axis tiles (51) and is made up of three described axis tiles (51), backstage axis tile (5) described in some framves becomes gap arrangement to arrange, described milling train main frame outlet (81), the center of U-shaped gathering sill (41) and guiding cavity (52) is on a rolling centerline,
Described cooling device (2) comprises cooling pipe (6), described cooling pipe (6) extends past directly over described backstage axis tile (5) and outlet guide pin bushing (4) from cooling water outlet, described cooling pipe (6) is provided with the electromagnetic induction valve (7) according to described milling train main frame (8) Load Regulation cooling water injecting time, and described electromagnetic induction valve (7) and described milling train main frame (8) are electrically connected.
2. hot rolled seamless steel tube Directed cooling equipment according to claim 1, is characterized in that, described outlet guide pin bushing (4) is also provided with the guide pin bushing base (42) supported described U-shaped gathering sill (41).
3. hot rolled seamless steel tube Directed cooling equipment according to claim 1, is characterized in that, described backstage axis tile (5) also comprises the axis tile bracing frame (53) for supporting three described axis tiles (51).
4. hot rolled seamless steel tube Directed cooling equipment according to claim 1, it is characterized in that, described cooling pipe (6) comprises cooling water main pipeline (61) and cooling water lateral (62), and described cooling water lateral (62) connects corresponding spray head (63).
5. hot rolled seamless steel tube Directed cooling equipment according to claim 4, is characterized in that, described electromagnetic induction valve (7) is provided with one, and is arranged on described cooling water main pipeline (61).
6. hot rolled seamless steel tube Directed cooling equipment according to claim 4, it is characterized in that, described electromagnetic induction valve (7) is provided with the guide pin bushing electromagnetic induction valve (71) corresponding with described outlet guide pin bushing (4), and several axis tile electromagnetic induction valves (72) corresponding with backstage axis tile (5), described guide pin bushing electromagnetic induction valve (71) and described axis tile electromagnetic induction valve (72) are separately positioned on corresponding described cooling water lateral (62).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420561791.0U CN204148253U (en) | 2014-09-27 | 2014-09-27 | A kind of hot rolled seamless steel tube Directed cooling equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420561791.0U CN204148253U (en) | 2014-09-27 | 2014-09-27 | A kind of hot rolled seamless steel tube Directed cooling equipment |
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| Publication Number | Publication Date |
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| CN204148253U true CN204148253U (en) | 2015-02-11 |
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| CN201420561791.0U Expired - Fee Related CN204148253U (en) | 2014-09-27 | 2014-09-27 | A kind of hot rolled seamless steel tube Directed cooling equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109158434A (en) * | 2018-09-19 | 2019-01-08 | 陕西龙门钢铁有限责任公司 | A kind of roller track cooling device |
-
2014
- 2014-09-27 CN CN201420561791.0U patent/CN204148253U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109158434A (en) * | 2018-09-19 | 2019-01-08 | 陕西龙门钢铁有限责任公司 | A kind of roller track cooling device |
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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: 20150211 |
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| CF01 | Termination of patent right due to non-payment of annual fee |