CN217202911U - Quick plugging device in galvanized set sink roll preheater gap - Google Patents
Quick plugging device in galvanized set sink roll preheater gap Download PDFInfo
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- CN217202911U CN217202911U CN202220420146.1U CN202220420146U CN217202911U CN 217202911 U CN217202911 U CN 217202911U CN 202220420146 U CN202220420146 U CN 202220420146U CN 217202911 U CN217202911 U CN 217202911U
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- refractory fiber
- fiber felt
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- 239000000835 fiber Substances 0.000 claims abstract description 49
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 26
- 239000010959 steel Substances 0.000 claims abstract description 26
- 238000005246 galvanizing Methods 0.000 claims abstract description 13
- 230000001154 acute effect Effects 0.000 claims description 6
- 230000009970 fire resistant effect Effects 0.000 claims 1
- 238000005097 cold rolling Methods 0.000 abstract description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 15
- 239000011701 zinc Substances 0.000 description 15
- 229910052725 zinc Inorganic materials 0.000 description 15
- 239000007788 liquid Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 238000007789 sealing Methods 0.000 description 5
- 239000002893 slag Substances 0.000 description 5
- 230000002950 deficient Effects 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 238000005336 cracking Methods 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Heat Treatment Of Strip Materials And Filament Materials (AREA)
Abstract
The utility model relates to a cold rolling technical field especially relates to a quick plugging device in galvanized set sink roll preheater gap. The device is formed by combining a plurality of plugs, and the plugs are closely attached to each other and placed in a reserved gap between a submerged roller arm and a preheating furnace box body; the plugging comprises a hot-rolled steel plate, a lining plate, a refractory fiber felt and a lifting lug, the hot-rolled steel plate is a flat plate, the lifting lug is vertically and fixedly connected to the upper surface of the hot-rolled steel plate, the refractory fiber felt is vertically and fixedly connected to the lower surface of the hot-rolled steel plate, the cross section of the refractory fiber felt is quadrilateral, and the lining plate is fixedly connected to the hot-rolled steel plate and the refractory fiber felt and wraps and supports the refractory fiber felt. The utility model can rapidly plug the gap of the submerged roller preheating furnace of the galvanizing unit, meet the requirement of the submerged roller preheating temperature, improve the accuracy of the preheating temperature, shorten the time for plugging the gap and improve the convenience of plugging; meanwhile, the quality loss of spare parts and products caused by substandard preheating temperature is reduced.
Description
Technical Field
The utility model relates to a cold rolling technical field especially relates to a quick plugging device in galvanized set sink roll preheater gap.
Background
After the assembly of the sinking roller of the galvanizing unit is finished, the sinking roller can be hoisted and immersed in a zinc pot only after being preheated in a preheating furnace. Generally, in order to ensure that the problems of buckling deformation of the roller, bearing cracking and the like caused by high temperature of the zinc liquid after the sink roller is immersed in the zinc liquid are avoided, the preheating temperature of the sink roller is required to be kept consistent with the temperature of the zinc liquid as much as possible before the sink roller is hung into a zinc pot, and the problems caused by overlarge temperature difference are avoided. The preheating temperature of the GI product sink roller is between 450 and 470 ℃ (the temperature of the zinc solution of the GI product is about 460 ℃), and the preheating temperature of the GL product sink roller is between 590 and 610 ℃ (the temperature of the zinc solution of the GL product is about 590 ℃).
The submerged roller is influenced by the form that the submerged roller is a three-roller six-arm system, when the submerged roller preheating furnace is designed, the reserved gap between each roller arm and the box body of the preheating furnace needs to be considered, and the size and the shape of zinc dross adhered to the roller arms are not determined, so that a larger gap needs to be reserved for an opening between the roller arms and the box body of the preheating furnace as much as possible. However, the excessive clearance can cause a large amount of heat loss at the clearance, and the preheating temperature of the sink roll cannot meet the design requirement. Meanwhile, because the clearance is too large, the actual heating temperature cannot reach the set temperature, and the heating device is always in a heating state, so that the energy consumption is large. Generally, the heating temperature of the sink roll can only reach 360 ℃ at most, the temperature difference compared with the zinc liquid temperature of GI products reaches about 100 ℃, and the temperature difference compared with the zinc liquid temperature of GL products reaches 230 ℃. After the sink roller system is immersed in the zinc liquid due to the huge temperature difference, the problems of serious influence on the service life of spare parts and the product quality, such as roller buckling deformation, roller surface slag adhesion, bearing cracking and the like caused by non-uniform temperature and temperature difference, lead to the increase of roller consumption, increase of process waste quantity and the like.
Disclosure of Invention
In order to overcome the defects of the prior art, the utility model provides a quick plugging device for gaps of a submerged roller preheating furnace of a galvanizing unit. The gap of the submerged roller preheating furnace of the galvanizing unit can be rapidly plugged, the requirement of the submerged roller preheating temperature is met, the preheating temperature accuracy is improved, the gap plugging time is shortened, and the plugging convenience is improved; meanwhile, the quality loss of spare parts and products caused by substandard preheating temperature is reduced.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a galvanized unit sink roll preheating furnace gap rapid plugging device is formed by combining a plurality of plugs, wherein the plugs are closely attached to each other and placed in a reserved gap between a sink roll arm and a preheating furnace box body; the plugging comprises a hot-rolled steel plate, a lining plate, a refractory fiber felt and a lifting lug, the hot-rolled steel plate is a flat plate, the lifting lug is vertically and fixedly connected to the upper surface of the hot-rolled steel plate, the refractory fiber felt is vertically and fixedly connected to the lower surface of the hot-rolled steel plate, the cross section of the refractory fiber felt is quadrilateral, and the lining plate is fixedly connected to the hot-rolled steel plate and the refractory fiber felt and wraps and supports the refractory fiber felt.
The plurality of plugs comprise first plugs, and the cross sections of the first plug refractory fiber felts are isosceles trapezoids.
The plurality of plugs comprise second plugs, the cross sections of the second-plug refractory fiber felts are parallelogram-like, the upper sides of the second-plug refractory fiber felts are parallel to the lower sides of the second-plug refractory fiber felts, the bottom angles on the left sides of the second-plug refractory fiber felts are acute angles, and the bottom angles on the right sides of the second-plug refractory fiber felts are obtuse angles.
The plurality of plugs comprise third plugs, the cross section of the third plug refractory fiber felt is parallelogram-like, the upper edge of the third plug refractory fiber felt is parallel to the lower edge of the third plug refractory fiber felt, the bottom angle of the left side of the third plug refractory fiber felt is an obtuse angle, and the bottom angle of the right side of the third plug refractory fiber felt is an acute angle.
The plugs comprise a fourth plug, and the cross section of the fourth plug refractory fiber felt is rectangular.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model can rapidly plug the gap of the submerged roller preheating furnace of the galvanizing unit, meet the requirement of the submerged roller preheating temperature, improve the accuracy of the preheating temperature, shorten the time for plugging the gap and improve the convenience of plugging; meanwhile, the quality loss of spare parts and products caused by substandard preheating temperature is reduced.
Before the saddle steel galvanizing unit uses the device, the using period of a GI product sink roller is averagely 20 days, and the using period of a GL product sink roller is averagely 4 days; after the device is adopted, the using period of the GI product sink roller is averagely 23 days, and the using period of the GL product sink roller is averagely 6 days. The service life of the sink roll is prolonged.
Before the device is used, the defective rate of the zinc dross caused by the slag sticking on the roller surface or the buckling deformation of the roller is 0.65 percent; after the method is used, the defective rate of the zinc dross caused by the slag sticking on the roller surface is reduced to 0.21%, and the defects of the strip steel are effectively reduced.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a schematic plan view of the present invention;
FIG. 3 is a schematic front view of a first plugging structure of the present invention;
fig. 4 is a schematic side view of a first plugging structure of the present invention;
fig. 5 is a schematic plan view of the first plugging structure of the present invention;
fig. 6 is a schematic front view of a second plugging structure of the present invention;
fig. 7 is a schematic side view of a second plugging structure of the present invention;
fig. 8 is a schematic front view of a third plugging structure of the present invention;
fig. 9 is a schematic front view of a fourth plugging structure of the present invention.
In the figure: 1-first sealing plug 2-second sealing plug 3-third sealing plug 4-fourth sealing plug 5-hot rolled steel plate 6-lining plate 7-refractory fiber felt 8-lifting lug
Detailed Description
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings:
[ examples ] A method for producing a compound
As shown in fig. 1-9, a device for rapidly plugging a gap of a preheating furnace of a sink roll of a galvanizing unit comprises a first plug 1, a second plug 2, a third plug 3 and a fourth plug 4.
The first seal plug 1, the second seal plug 2, the third seal plug 3 and the fourth seal plug 4 respectively comprise a hot rolled steel plate 5, a lining plate 6, a refractory fiber felt 7 and a lifting lug 8. The hot-rolled steel plate 5 is a flat plate, the lifting lugs 8 are U-shaped and are formed by bending round steel, and the lifting lugs 8 are vertically and fixedly connected to the upper surface of the hot-rolled steel plate 5.
The refractory fiber felt 7 is vertically and fixedly connected to the lower surface of the hot rolled steel plate 5, and the lining plate 6 is fixedly connected to the hot rolled steel plate 5 and the refractory fiber felt 7 to wrap and support the refractory fiber felt 7.
The cross section of the refractory fiber felt 7 of the first plug 1 is isosceles trapezoid.
The cross section of the refractory fiber felt 7 of the second plug 2 is a parallelogram-like shape, the upper side is parallel to the lower side, the bottom angle on the left side is an acute angle, and the bottom angle on the right side is an obtuse angle.
The cross section of the refractory fiber felt 7 of the third sealing plug 3 is a parallelogram-like shape, the upper side is parallel to the lower side, the bottom angle on the left side is an obtuse angle, and the bottom angle on the right side is an acute angle.
The cross section of the refractory fiber felt 7 of the fourth block 4 is rectangular.
Second shutoff 2, first shutoff 1, third shutoff 3 are hugging closely each other and are placing in the reservation clearance between immersed roller arm and preheating furnace box, and second shutoff 2 is located the left side of first shutoff 1, and third shutoff 3 is located the right side of first shutoff 1, and fourth shutoff 4 is next to second shutoff 2, is located the left side of second shutoff 2.
The utility model discloses a use method as follows:
1) after the sink roll is hoisted in place in the preheating furnace, the box bodies on the two sides of the insulation vehicle are closed;
2) installing the plugging device at a gap corresponding to the arrangement diagram according to the position shape;
3) dynamically adjusting the refractory fiber felt 7 at the periphery of the plugging device according to the actual size of the gap until the gap is completely plugged;
4) then, the power supply of the preheating furnace can be switched on, the temperature set value is adjusted, and the sinking roller starts to be heated;
5) and after the heat preservation temperature and the heat preservation time are reached, when the sink roll is ready to be lifted out before roll replacement, the power supply of the sink roll preheating furnace is firstly closed, then the plugging device is taken down and placed in the storage box, and then the box body of the preheating furnace is opened to carry out the lifting work of the sink roll.
The utility model can rapidly plug the gap of the submerged roller preheating furnace of the galvanizing unit, meet the requirement of the submerged roller preheating temperature, improve the accuracy of the preheating temperature, shorten the time for plugging the gap and improve the convenience of plugging; meanwhile, the quality loss of spare parts and products caused by substandard preheating temperature is reduced.
Before the saddle steel galvanizing unit uses the device, the using period of a GI product sink roller is averagely 20 days, and the using period of a GL product sink roller is averagely 4 days; after the device is adopted, the using period of the GI product sink roll is averagely 23 days, and the using period of the GL product sink roll is averagely 6 days. The service life of the sink roll is prolonged.
Before the device is used, the defective rate of the zinc dross caused by the slag sticking on the roller surface or the buckling deformation of the roller is 0.65 percent; after the method is used, the defective rate of the zinc dross caused by the slag sticking on the roller surface is reduced to 0.21%, and the defects of the strip steel are effectively reduced.
The above description is only the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can substitute or change the technical solution and the concept of the present invention within the technical scope disclosed in the present invention. The methods used in the above examples are conventional methods unless otherwise specified.
Claims (5)
1. The utility model provides a quick plugging device in galvanized set sink roll preheater gap which characterized in that: the device is formed by combining a plurality of plugs, and the plugs are closely attached to each other and placed in a reserved gap between a submerged roller arm and a preheating furnace box body; the plugging comprises a hot-rolled steel plate, a lining plate, a refractory fiber felt and a lifting lug, the hot-rolled steel plate is a flat plate, the lifting lug is vertically and fixedly connected to the upper surface of the hot-rolled steel plate, the refractory fiber felt is vertically and fixedly connected to the lower surface of the hot-rolled steel plate, the cross section of the refractory fiber felt is quadrilateral, and the lining plate is fixedly connected to the hot-rolled steel plate and the refractory fiber felt and wraps and supports the refractory fiber felt.
2. The quick plugging device for the gap of the sinking roller preheating furnace of the galvanizing unit according to claim 1 is characterized in that: the plurality of plugs comprise first plugs, and the cross sections of the first plug refractory fiber felts are isosceles trapezoids.
3. The rapid plugging device for the gap of the submerged roller preheating furnace of the galvanizing unit according to claim 1, which is characterized in that: the plurality of plugs comprise second plugs, the cross sections of the second-plug refractory fiber felts are parallelogram-like, the upper sides of the second-plug refractory fiber felts are parallel to the lower sides of the second-plug refractory fiber felts, the bottom angles on the left sides of the second-plug refractory fiber felts are acute angles, and the bottom angles on the right sides of the second-plug refractory fiber felts are obtuse angles.
4. The quick plugging device for the gap of the sinking roller preheating furnace of the galvanizing unit according to claim 1 is characterized in that: the plurality of plugs comprise third plugs, the cross section of the third plug refractory fiber felt is parallelogram-like, the upper side of the third plug refractory fiber felt is parallel to the lower side of the third plug refractory fiber felt, the bottom angle of the left side of the third plug refractory fiber felt is an obtuse angle, and the bottom angle of the right side of the third plug refractory fiber felt is an acute angle.
5. The rapid plugging device for the gap of the submerged roller preheating furnace of the galvanizing unit according to claim 1, which is characterized in that: the plugs comprise a fourth plug, and the cross section of the fourth plug fire-resistant fiber felt is rectangular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220420146.1U CN217202911U (en) | 2022-02-25 | 2022-02-25 | Quick plugging device in galvanized set sink roll preheater gap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220420146.1U CN217202911U (en) | 2022-02-25 | 2022-02-25 | Quick plugging device in galvanized set sink roll preheater gap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217202911U true CN217202911U (en) | 2022-08-16 |
Family
ID=82753060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220420146.1U Active CN217202911U (en) | 2022-02-25 | 2022-02-25 | Quick plugging device in galvanized set sink roll preheater gap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217202911U (en) |
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2022
- 2022-02-25 CN CN202220420146.1U patent/CN217202911U/en active Active
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