CN211367678U - Quick assembly disassembly device of stove bottom cover plate of continuous annealing stove - Google Patents
Quick assembly disassembly device of stove bottom cover plate of continuous annealing stove Download PDFInfo
- Publication number
- CN211367678U CN211367678U CN201922110807.1U CN201922110807U CN211367678U CN 211367678 U CN211367678 U CN 211367678U CN 201922110807 U CN201922110807 U CN 201922110807U CN 211367678 U CN211367678 U CN 211367678U
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- China
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- bottom cover
- cover plate
- furnace
- fastening bolt
- stove
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- Withdrawn - After Issue
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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
Abstract
The utility model relates to a quick assembly disassembly device of furnace bottom cover plate of continuous annealing furnace belongs to metallurgical industry cold-rolled strip steel production facility technical field. The technical scheme is as follows: evenly fix four draw-in grooves (14) all around at stove outer covering (15), install a fastening bolt (5) on every draw-in groove (14) respectively, the screw rod threaded connection of fastening bolt (5) is on draw-in groove (14), be equipped with couple (6) on the bolt head of fastening bolt (5), hang a direction chain (2) on couple (6) of every fastening bolt (5) respectively, the lower extreme of direction chain (2) is connected on fixed bolster (3), fixed bolster (3) are fixed on stove bottom cover plate (1), reverse jackscrew (9) threaded connection is on stove outer covering (15) that is close to stove bottom cover plate (1). The utility model has the advantages that: dismantlement and installation stove bottom apron that can be quick reduces the time loss that dismouting stove bottom apron caused, shortens the accident or overhauls the processing time.
Description
Technical Field
The utility model relates to a quick assembly disassembly device of furnace bottom cover plate of continuous annealing furnace belongs to metallurgical industry cold-rolled strip steel production facility technical field.
Background
The continuous annealing furnace adopts a totally enclosed hearth structure, and hydrogen and nitrogen with reducing atmosphere are filled into the furnace and mixed to form protective gas for isolating air and avoiding the strip steel oxidation condition in the continuous annealing furnace. When equipment in the continuous annealing furnace is overhauled or production accidents in the furnace occur, the furnace bottom cover plate is generally required to be disassembled and assembled to cool and ventilate the annealing furnace, then maintainers are arranged to enter the annealing furnace to perform equipment maintenance or accident treatment, and the furnace bottom cover plate is required to be reinstalled on the furnace shell after the overhaul is finished or the accident treatment is finished.
Because the bottom cover plate of the annealing furnace is heavy in weight and large in size, the traditional method is to open the bottom cover plate dismounting trolley of the annealing furnace below the bottom cover, then raise the moving platform, after the moving platform contacts the bottom cover plate, dismount the fastening bolt of the bottom cover plate, after the dismounting is completed, lower the moving platform, separate the bottom cover plate from the furnace shell under the action of gravity, and then transport the bottom cover plate to a proper place by using the overhead traveling crane to hang down and place the ground by using the dismounting trolley. And when the bottom cover plate is installed, the reverse operation is executed, the crown block lifts the bottom cover to the disassembly trolley moving platform, the trolley moves to the opening of the furnace shell, the moving platform is slowly lifted, the position of the trolley is adjusted by naked eyes, the bottom cover is ensured to be opposite to the opening of the furnace shell, and the bolt is screwed when the bottom cover is lifted to a proper position, so that the bottom cover installation work is completed. This approach has the following problems: firstly, the bottom cover plate needs to be accurately placed into the furnace shell clamping groove in the installation process of the bottom cover plate, the alignment position of the bottom cover plate is not easy to determine, the position of the trolley needs to be manually adjusted repeatedly, and time and labor are wasted; secondly, the furnace bottom cover plate is easy to deform due to the influence of expansion with heat and contraction with cold, so that the furnace bottom cover plate is blocked on the furnace shell and cannot be smoothly disassembled, tools such as crowbars are needed, and the danger of hurting people exists; thirdly, the lifting distance of the furnace bottom cover plate is not easy to be controlled, and the furnace bottom cover plate and the opening of the furnace shell are easy to be sealed and extruded.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a stove bottom cover plate quick assembly disassembly device of annealing stove in succession, dismantlement and installation stove bottom cover plate that can be quick reduce the time loss that dismouting stove bottom cover plate caused, shorten the accident or overhaul the processing time, solve the problem that exists among the background art.
The technical scheme of the utility model is that:
the utility model provides a continuous annealing stove bottom cover board quick assembly disassembly device, contains stove bottom cover board, guide chain, fixed bolster, fastening bolt, couple, reverse jackscrew, draw-in groove and stove outer covering, at four draw-in grooves of even fixed all around of stove outer covering, installs a fastening bolt on every draw-in groove respectively, fastening bolt contains screw rod and bolt head, and fastening bolt's screw thread connection is on the draw-in groove, and fastening bolt's bolt head is the type of falling U structure, is equipped with the couple on fastening bolt's the bolt head, hangs a guide chain on every fastening bolt's couple respectively, and the lower extreme of guide chain is connected on the fixed bolster, and the fixed bolster is fixed on stove bottom cover board, and reverse jackscrew thread connection is on the stove outer covering that is close to.
The guide chain comprises a plurality of sections of mutually connected chain links and hoisting rings at two ends.
And the fixed support is provided with a positioning hole matched with the hoisting ring.
The quick assembly disassembly device for the furnace bottom cover plate of the continuous annealing furnace further comprises a furnace bottom cover plate disassembly moving trolley and a lifting platform, wherein the lifting platform is fixed on the furnace bottom cover plate disassembly moving trolley and is positioned below the furnace bottom cover plate.
By adopting the utility model, when the furnace bottom cover plate needs to be opened due to an accident, the temperature of the hearth of the continuous annealing furnace is firstly reduced to below 300 ℃, the protective gas in the furnace is closed, and then the furnace bottom cover plate dismounting moving trolley is moved to the position of the furnace bottom cover plate needing to be dismounted; lifting the moving platform on the furnace bottom cover plate detaching trolley, enabling the moving platform to prop against the bottom of the furnace bottom cover plate, rotating the fastening bolt to enable the guide chain to be in a loose state, and slowly descending the moving platform for about 2-3cm and then stopping; observing the moving condition of the furnace bottom cover plate, and if the furnace bottom cover plate descends along with the moving platform, continuing to descend the moving platform until the furnace bottom cover plate is completely separated from the furnace shell; if the furnace bottom cover plate is blocked on the furnace shell due to thermal expansion and cold contraction deformation and does not descend along with the moving platform, the reverse jackscrew is screwed by a spanner to reversely eject the furnace bottom cover plate, so that the furnace bottom cover plate is separated from the furnace shell and falls onto the moving platform of the moving trolley of the furnace bottom cover plate; and moving the furnace bottom cover plate moving trolley to a loading and unloading position, taking the furnace bottom cover plate from the furnace bottom cover plate moving trolley by using a crown block or a forklift, and placing the furnace bottom cover plate to a specified position, namely, completing the disassembly of the furnace bottom cover plate.
When the accident is finished and the furnace bottom cover plate needs to be reinstalled, the installation process and the disassembly process of the furnace bottom cover plate are opposite.
The utility model has the advantages that: when the furnace bottom cover plate of the continuous annealing furnace is installed, the position of the furnace bottom cover can be quickly and accurately positioned by using the guide chain for suspension positioning, the time consumed by repeatedly moving and positioning a furnace bottom cover trolley on site is saved, and the installation time of the furnace bottom cover plate is greatly shortened; when the deformed furnace bottom cover plate is disassembled, the deformed furnace bottom cover plate can be jacked away from the furnace shell through the reverse acting force of the reverse jackscrew, so that the time for disassembling the furnace bottom cover is shortened; by using the reverse jackscrew, the installation distance of the furnace bottom cover plate can be positioned, the fastening force of the furnace bottom cover plate is controlled, and the sealing bottom cover and the opening of the furnace shell are protected to be sealed.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a front view of a fastening bolt;
FIG. 3 is a left side view of the fastening bolt;
FIG. 4 is a schematic view of a guide chain;
FIG. 5 is a view showing the installation of the locking groove and the fastening bolt;
FIG. 6 is a side view of the card slot;
in the figure: the furnace bottom cover plate comprises a furnace bottom cover plate 1, a guide chain 2, a fixing support 3, a positioning hole 4, a fastening bolt 5, a hook 6, a lock catch 7, a handle 8, a reverse jackscrew 9, a T-shaped nut 10, a furnace bottom cover plate moving trolley 11, a hoisting ring 12, a moving platform 13, a clamping groove 14, a furnace shell 15 and a jackscrew nut 16.
Detailed Description
The invention will be further explained by way of example with reference to the accompanying drawings.
Referring to the attached drawings 1-6, the device for quickly dismounting and mounting the furnace bottom cover plate of the continuous annealing furnace comprises a furnace bottom cover plate 1, a guide chain 2, a fixed support 3, fastening bolts 5, hooks 6, reverse jackscrews 9, clamping grooves 14 and a furnace shell 15, wherein four clamping grooves 14 are uniformly fixed around the furnace shell 15, one fastening bolt 5 is respectively installed on each clamping groove 14, each fastening bolt 5 comprises a screw and a bolt head, the screw of each fastening bolt 5 is in threaded connection with the clamping groove 14, the bolt head of each fastening bolt 5 is in an inverted U-shaped structure, the hook 6 is arranged on the bolt head of each fastening bolt 5, one guide chain 2 is respectively hung on the hook 6 of each fastening bolt 5, the lower end of each guide chain 2 is connected onto the fixed support 3, the fixed support 3 is fixed onto the furnace bottom cover plate 1, and the reverse jackscrews 9 are in threaded connection with the furnace shell 15 close to the.
In this embodiment, referring to fig. 1-6, a bottom cover plate quick assembly disassembly device for a continuous annealing furnace comprises four fixing supports 3, four clamping grooves 14, four fastening bolts 5, four guide chains 2, eight hoisting rings 12 and four reverse jackscrews 9, wherein the fixing supports 3 are uniformly fixed around the bottom cover plate 1, and the reverse jackscrews 9 are installed at the four corners and the top points of the bottom cover plate 1.
The clamping groove 14 is fixed on the furnace shell 15 through a bolt, the fixed support 3 penetrates through the clamping groove 14, the fixed support 3 is propped against the fixed support 3 in the clamping groove 14 where the fastening bolt 5 is fixed, the furnace bottom cover plate 1 is vertically fixed on the furnace shell 15, and the moving platform 13 is arranged on the moving trolley 11 of the furnace bottom cover plate.
Referring to the attached drawings 2 and 3, one end of a fastening bolt 5 is a bolt rod, a T-shaped nut 10 is arranged on the bolt rod, the other end of the fastening bolt is of an inverted U-shaped structure and is provided with a fastening handle 8, a hook 6 is arranged on the handle 8, and the hook 6 is provided with a lock catch 7.
Referring to the attached drawing 1, a positioning hole 4 is formed in the fixing support 3 and used for hanging the furnace bottom cover plate 1, and a jackscrew nut 16 is welded at the end of the fixing support 3 and used for installing a reverse jackscrew 9.
Referring to fig. 4 and 5, the guide chain 2 comprises a plurality of interconnected links and a lifting ring 12 at each end.
Referring to fig. 5 and 6, the slot 14 is provided with a bolt hole for fixing the slot on the furnace shell 15 through a bolt, and the inner side of the slot 14 is provided with a groove for placing the T-shaped nut 10.
The disassembly and assembly of the furnace bottom cover plate of the continuous annealing furnace specifically comprises the following steps:
(1) when the furnace bottom cover plate of the continuous annealing furnace needs to be opened due to an accident, firstly, the temperature of a hearth of the continuous annealing furnace is reduced to be below 300 ℃, protective gas in the furnace is closed, and then, the furnace bottom cover plate moving trolley 11 is moved to the position of the furnace bottom cover plate 1 needing to be disassembled;
(2) lifting the moving platform 13 on the furnace bottom cover plate dismounting trolley 11, enabling the moving platform 13 to prop against the bottom of the furnace bottom cover plate 1, unscrewing the fastening bolts 5 for 2-3 circles, drawing out the fastening bolts 5 from the clamping grooves 14, and slowly descending the moving platform 13 for about 2-3cm and stopping;
(3) observing the moving condition of the furnace bottom cover plate 1, and if the furnace bottom cover plate 1 descends along with the moving platform 13, continuing to descend the moving platform 13 to a standard position; if the furnace bottom cover plate 1 is blocked on the furnace shell 15 due to thermal expansion and cold contraction deformation and does not descend along with the moving platform 13, the reverse jackscrew 9 is screwed by a spanner, and the furnace bottom cover plate 1 is reversely ejected out and separated from the furnace shell 15 and then falls onto the moving platform 13 of the furnace bottom cover plate moving trolley 11;
(4) moving the furnace bottom cover plate moving trolley 11 to a loading and unloading position, taking down the furnace bottom cover plate 1 from the furnace bottom cover plate moving trolley 11 by using a crown block or a forklift, and placing the furnace bottom cover plate at a specified position to finish the disassembly of the furnace bottom cover plate;
(5) when the accident is finished and the furnace bottom cover plate 1 needs to be reloaded, moving the furnace bottom cover plate moving trolley 11 to a loading and unloading position, and placing the furnace bottom cover plate 1 on a moving platform 13 of the furnace bottom cover plate moving trolley 11 by using a crown block or a forklift;
(6) moving a trolley 11 of the furnace bottom cover plate to an opening of a corresponding furnace shell 15, lifting a moving platform 13 to a distance of about 1m, respectively installing a fastening bolt 5 in a clamping groove 14 at four corners of the opening of the furnace shell 15, hanging a guide chain 2 on a hook under each fastening bolt 5, and connecting the other end of each guide chain 2 to a positioning hole 4 of a fixed support 3 of the furnace bottom cover plate 1;
(7) descending a moving platform 13 of a moving trolley 11 of the furnace bottom cover plate to a standard position, enabling the furnace bottom cover plate 1 to automatically align to an opening position of a furnace shell 15 by virtue of the self weight of the furnace bottom cover plate 1, lifting the moving platform 13 to about 1m, and removing a guide chain 2 and a fastening bolt 5 after lifting the furnace bottom cover plate 1;
(8) and continuously lifting the movable platform 13 to the mounting position, determining that all the fixed supports 3 of the furnace bottom cover plate 1 enter the furnace shell clamping grooves 14, mounting and screwing the fastening bolts 5 until the reverse jackscrews 9 contact the furnace shell 15 to prevent the furnace bottom cover plate 1 from being damaged by excessive extrusion, then descending the movable platform 13 to the standard position, and starting to recover production after the furnace bottom cover plate 1 is mounted.
Claims (4)
1. The utility model provides a quick assembly disassembly device of stove bottom cover plate of continuous annealing stove which characterized in that: comprises a furnace bottom cover plate (1), a guide chain (2), a fixed support (3), a fastening bolt (5), a hook (6), a reverse jackscrew (9), a clamping groove (14) and a furnace shell (15), four clamping grooves (14) are uniformly fixed on the periphery of the furnace shell (15), a fastening bolt (5) is respectively arranged on each clamping groove (14), the fastening bolt (5) comprises a screw rod and a bolt head, the screw rod of the fastening bolt (5) is in threaded connection with the clamping groove (14), the bolt head of the fastening bolt (5) is of an inverted U-shaped structure, a hook (6) is arranged on the bolt head of the fastening bolt (5), a guide chain (2) is hung on a hook (6) of each fastening bolt (5), the lower end of each guide chain (2) is connected to a fixing support (3), the fixing supports (3) are fixed on a furnace bottom cover plate (1), and a reverse jackscrew (9) is in threaded connection with a furnace shell (15) close to the furnace bottom cover plate (1).
2. The quick dismounting device for the bottom cover plate of the continuous annealing furnace according to claim 1, characterized in that: the guide chain (2) comprises a plurality of sections of mutually connected chain links and hoisting rings (12) at two ends.
3. The quick dismounting device for the bottom cover plate of the continuous annealing furnace according to claim 2, characterized in that: and the fixed support (3) is provided with a positioning hole (4) matched with the hoisting ring (12).
4. The quick dismounting device for the bottom cover plate of the continuous annealing furnace according to claim 3, characterized in that: the furnace bottom cover plate dismounting and moving trolley (11) and the lifting platform (13) are further included in the composition, the lifting platform (13) is fixed on the furnace bottom cover plate dismounting and moving trolley (11), and the lifting platform (13) is located below the furnace bottom cover plate (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922110807.1U CN211367678U (en) | 2019-11-30 | 2019-11-30 | Quick assembly disassembly device of stove bottom cover plate of continuous annealing stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922110807.1U CN211367678U (en) | 2019-11-30 | 2019-11-30 | Quick assembly disassembly device of stove bottom cover plate of continuous annealing stove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211367678U true CN211367678U (en) | 2020-08-28 |
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ID=72170849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922110807.1U Withdrawn - After Issue CN211367678U (en) | 2019-11-30 | 2019-11-30 | Quick assembly disassembly device of stove bottom cover plate of continuous annealing stove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211367678U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110923436A (en) * | 2019-11-30 | 2020-03-27 | 邯郸钢铁集团有限责任公司 | Quick disassembling and assembling device and method for furnace bottom cover plate of continuous annealing furnace |
-
2019
- 2019-11-30 CN CN201922110807.1U patent/CN211367678U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110923436A (en) * | 2019-11-30 | 2020-03-27 | 邯郸钢铁集团有限责任公司 | Quick disassembling and assembling device and method for furnace bottom cover plate of continuous annealing furnace |
| CN110923436B (en) * | 2019-11-30 | 2023-08-29 | 邯郸钢铁集团有限责任公司 | Rapid dismounting device and dismounting method for bottom cover plate of continuous annealing furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20200828 Effective date of abandoning: 20230829 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20200828 Effective date of abandoning: 20230829 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |