CN217191676U - Finish rolling descaling box entry water seal device - Google Patents
Finish rolling descaling box entry water seal device Download PDFInfo
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- CN217191676U CN217191676U CN202220267900.2U CN202220267900U CN217191676U CN 217191676 U CN217191676 U CN 217191676U CN 202220267900 U CN202220267900 U CN 202220267900U CN 217191676 U CN217191676 U CN 217191676U
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- water
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- descaling box
- water sealing
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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
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The utility model discloses a finish rolling descaling box inlet water sealing device, which comprises a frame structure, a water sealing roller and a lower transmission roller, wherein the frame structure is arranged in front of a descaling box, the water sealing roller and the lower transmission roller are arranged in the middle of the frame structure in parallel from top to bottom, the lower transmission roller is in transmission connection with an alternating current motor through a shaft coupling and a speed reducer, and the water sealing roller is suspended on a steel frame through a connecting device; during operation, the intermediate blank passes through the gap between the water sealing roller and the lower transmission roller and is conveyed into the descaling box. The utility model discloses rationally distributed, installation convenient to use is swift, has effectively promoted the water-tight effect, ensures that hot detection accuracy, and the billet board type in the middle of the guarantee ensures the rolling stability of finish rolling, has avoided the long-time ponding in middle billet surface, and the billet difference in temperature in the middle of the reduction improves belted steel product quality, promotes the primary qualification rate of product.
Description
Technical Field
The utility model relates to a steel rolling auxiliary assembly field especially relates to a finish rolling descaling box entry water-seal device.
Background
The outlet and inlet pinch rolls of the descaling box have the same structure, the upper roll and the lower roll are respectively provided with independent bearing seats, the upper roll can be adjusted up and down to adjust the roll gap, the upper roll is lifted and moved by the aid of the hydraulic power of a hydraulic cylinder to form a free roll, the lower roll is driven independently, and the lower roll is driven by an alternating current motor through a speed reducer and a coupler. The outlet, the inlet pinch roll, the racks on the two sides and the upper cover form a closed box body, high-pressure water and iron oxide scale can be effectively prevented from splashing, meanwhile, the rear pinch roll extrudes the descaled waste water to the outside of the plate surface, and meanwhile, the raised head of the plate blank is flattened, so that a collision nozzle is prevented from ensuring that a rolled piece is smoothly bitten into a finishing mill group. However, in the actual production process, because the pressing time of the pinch roll at the inlet side is short, and a gap is formed between the pinch roll and the intermediate billet, descaling water is flushed out of the gap and sprayed onto the surface of the intermediate billet during descaling, the thermal detection accuracy is affected, the hit rate is low, the water accumulation time on the surface of the intermediate billet is long, the temperature drop is overlarge (the average temperature of the intermediate billet at the inlet side is measured to be 985 ℃, the average temperature at the outlet side is measured to be 932 ℃, and the temperature is reduced to 53 ℃), the rolled strip steel is uneven in thickness and width, strip steel quality problems such as edge gaps, edge overflow, wave shapes and the like occur, and the crystal inside the strip steel is changed due to overlarge temperature drop, the ductility is reduced, the brittleness is increased, and a large number of unqualified products occur.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a finish rolling descaling box entry water-sealing device realizes reserving the cooling water with middle base surface and arranges the extrusion totally to ensure accuracy and stability that the hot signal of examining hit, prevent the long-time ponding in middle base surface, the base difference in temperature in the middle of the reduction improves belted steel product quality, promotes the primary qualification rate of product.
In order to solve the technical problem, the utility model adopts the following technical scheme:
the utility model relates to a finish rolling descaling box inlet water sealing device, including frame construction, water sealing roller and lower driving roller, the frame construction is installed in the front of descaling box, water sealing roller and lower driving roller are arranged in parallel from top to bottom in the middle part of the frame construction, the front side of lower driving roller is provided with lower driving roller, lower driving roller is connected with AC motor transmission through shaft coupling, speed reducer, water sealing roller is hung on the steel frame through connecting device; during operation, the intermediate blank passes through the gap between the water sealing roller and the lower transmission roller and is conveyed into the descaling box.
Preferably, a water mist chain is arranged behind the water sealing roller, the water mist chain is suspended on a horizontal frame of the frame structure, and at least one group of water mist chain is arranged.
Preferably, the water mist chains are arranged in two groups side by side.
Preferably, a water baffle is arranged in front of the water sealing roller, the water baffle is obliquely arranged and welded on a bearing seat of the water sealing roller through a horizontal connecting rod, and one side of the connecting device, which is close to the descaling box, is connected with a swing angle limiting device.
Preferably, a drainage baffle is arranged between the frame structure and the descaling box, and the drainage baffle is welded or connected to a vertical frame of the steel frame through a bolt.
Preferably, the connecting device comprises a connecting seat, a suspension rod, a connecting rod and a suspension chain, the connecting seat is welded or fixed on the frame structure through a bolt, the suspension rod is connected on a vertical rod on the bottom surface of the connecting seat in a penetrating manner, the top ends of the connecting rod and the suspension chain are connected on the suspension rod, and the bottom ends of the connecting rod and the suspension chain are connected on a bearing seat of the water sealing roller.
Compared with the prior art, the utility model discloses a beneficial technological effect:
the utility model discloses finish rolling descaling box entry water-sealing device, rationally distributed, installation convenient to use is swift, has effectively promoted the water-sealing effect, ensures that the hot detection detects the accuracy, and the billet board type in the middle of the guarantee ensures finish rolling stability, has avoided the long-time ponding in middle billet surface, and the billet difference in temperature in the middle of the reduction improves belted steel product quality, promotes the primary qualification rate of product.
Drawings
The present invention will be further explained with reference to the following description of the drawings.
FIG. 1 is a front view of the inlet water sealing device of the finish rolling descaling box of the utility model;
FIG. 2 is a side view of the inlet water sealing device of the finish rolling descaling box of the utility model;
FIG. 3 is an enlarged view of the connecting device of the present invention;
description of reference numerals: 1. a frame structure; 2. a water sealing roller; 3. a lower driving roller; 4. a water mist chain; 5. a water baffle; 6. a drainage baffle; 7. a swing angle limiting device; 8. a connecting device; 9. a descaling box;
801. a connecting seat; 802. a suspension rod; 803. a connecting rod; 804. and (4) hanging the chain.
Detailed Description
As shown in fig. 1-2, the finish rolling descaling box inlet water sealing device comprises a frame structure 1, a water sealing roller 2 and a lower transmission roller 10, wherein the frame structure 1 is installed in front of a descaling box 9, the water sealing roller 2 and the lower transmission roller 10 are arranged in the middle of the frame structure 1 in an up-and-down parallel manner, the lower transmission roller 3 is arranged on the front side of the lower transmission roller 10, the lower transmission roller 3 is in transmission connection with an alternating current motor through a coupler and a speed reducer, and the water sealing roller 2 is suspended on a steel frame 1 through a connecting device 8; in operation, the intermediate billet passes through the gap between the water sealing roller 2 and the lower driving roller 10 and is conveyed into the descaling box 9.
Specifically, a water mist chain 4 is arranged behind the water sealing roller 2, the water mist chain 4 is hung on a horizontal frame of the frame structure 1, and at least one group of water mist chain 4 is arranged to thoroughly block part of splashed descaling water behind the water mist chain. In one embodiment, the water mist chains 4 are arranged in two groups side by side.
Specifically, a drainage baffle 6 is arranged between the frame structure 1 and the descaling box 9, the drainage baffle 6 is welded or connected to a vertical frame of the steel frame 1 through bolts, so that descaling water between the lower driving roller 10 and the water sealing roller 2 is prevented from splashing to two sides of a roller way, and meanwhile, the descaling water can be guided to flow back to a trench.
As shown in fig. 3, the connecting device 8 includes a connecting seat 801, a suspension rod 802, a connecting rod 803 and a suspension chain 804, the connecting seat 801 is welded or fixed on the frame structure 1 by bolts, the suspension rod 802 is connected on a vertical rod on the bottom surface of the connecting seat 801 in a penetrating manner, the suspension rod 802 can rotate around the axis, the top ends of the connecting rod 803 and the suspension chain 804 are connected on the suspension rod 803, the bottom ends of the connecting rod 803 and the suspension chain 804 are connected on bearing seats of the water sealing roller, and the bearing seats of the water sealing roller are located at two ends of the water sealing roller 2. During installation, the roll gap between the water sealing roller and the lower transmission roller is determined firstly, then the height of the roll gap is adjusted to be smaller than the thickness of the intermediate blank, the water sealing roller 2 is pressed on the surface of the intermediate blank by means of self weight, the water sealing roller is ensured to be in close contact with the top surface of the intermediate blank in the moving process of the intermediate blank, and a good water sealing effect is achieved.
In addition, a water baffle 5 is arranged in front of the water sealing roller 2, so that high-pressure water flow is prevented from being sprayed out from the upper part of the water sealing roller and flowing to the surface of the intermediate blank; the water baffle 5 is obliquely arranged and is welded on a bearing seat of the water sealing roller through a horizontal connecting rod; and a swing angle limiting device 7 is connected to one side, close to the descaling box 9, of the connecting device 8. The specific swing angle limiting device 7 is specifically configured as an inclined baffle plate, the inclined baffle plate is welded on the connecting seat 801 and corresponds to the position of the connecting rod 803, and the inclined angle of the connecting rod 803 can be limited by the baffle plate; the swing angle limiting device 7 may further include two connecting diagonal rods and a stop rod, the top end of the connecting diagonal rod is welded on the frame structure 1, the stop rod is connected to the lower end of the connecting diagonal rod, and the length of the stop rod is greater than the distance between the two connecting rods 803. When steel is passed, the water sealing roller 2 is dragged by the intermediate blank and forms a linear included angle of 40-65 degrees with the central line of the section of the frame structure, and the baffle or the blocking rod can block the connecting rod 803 on the connecting device, so that the problems that the swing angle of the water sealing roller is too large, the water sealing roller swings left and right due to the fact that the intermediate blank is uneven, the water sealing roller is not in real contact with the surface of the intermediate blank, and the water sealing effect is influenced are avoided. The specific baffle or connecting diagonal rod has an included angle of not higher than 45 degrees, preferably 30 degrees with the center line of the section of the frame structure, and can also be designed and installed according to the actual sealing requirement.
The utility model discloses the result of use as follows:
the device is applied to a hot rolling factory of a certain iron and steel group, in the previous year, the quality problems of edge gaps, edge overflow, wave shapes and the like caused by steel clamping and hot inspection of a descaling box and no signal and excessive temperature drop of an intermediate blank are 128 coils, the total weight is about 1344 tons, and the primary qualified rate of the product in the time period is 93.5 percent; in the next year of application, the number of detected waste products is reduced to 29 coils due to the fact that steel clamping and hot detection of the descaling box cannot be carried out and signals are not detected and the temperature of the intermediate blank is reduced too much, the yield of qualified products is increased to 1039.5 tons, and the first-time qualified rate is increased to 95.8%. Actually measuring the average temperature of the intermediate billet at the inlet side of the descaling box to be 985 ℃, the average temperature of the intermediate billet at the outlet side of the descaling box to be 957 ℃, and the temperature drop to be 28 ℃. Therefore, the water sealing effect is effectively improved by additionally arranging the finish rolling descaling box inlet water sealing device, the heat detection accuracy is ensured, the intermediate billet profile is ensured, the finish rolling stability is ensured, long-time water accumulation on the surface of the intermediate billet is prevented, the intermediate billet temperature difference is reduced, the quality of strip steel products is improved, and the primary qualified rate of the products is improved.
The above-mentioned embodiments are only intended to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and those skilled in the art should also be able to make various modifications and improvements to the technical solution of the present invention without departing from the spirit of the present invention, and all such modifications and improvements are intended to fall within the scope of the present invention as defined in the appended claims.
Claims (6)
1. The utility model provides a finish rolling descaling box entry water-sealing device which characterized in that: the descaling device comprises a frame structure, a water sealing roller and a lower transmission roller, wherein the frame structure is arranged in front of a descaling box, the water sealing roller and the lower transmission roller are arranged in the middle of the frame structure in an up-and-down parallel manner, the lower transmission roller is in transmission connection with an alternating current motor through a coupler and a speed reducer, and the water sealing roller is suspended on a steel frame through a connecting device; during operation, the intermediate blank passes through the gap between the water sealing roller and the lower transmission roller and is conveyed into the descaling box.
2. The finish rolling descaling box inlet water-sealing device of claim 1, characterized in that: and a water mist chain is arranged at the rear part of the water sealing roller, the water mist chain is suspended on a horizontal frame of the frame structure, and at least one group of water mist chain is arranged.
3. The finish rolling descaling box inlet water-sealing device of claim 2, characterized in that: the water mist chains are arranged in two groups side by side.
4. The finish rolling descaling box inlet water-sealing device of claim 1, characterized in that: and a water baffle is arranged in front of the water sealing roller, the water baffle is obliquely arranged and welded on a bearing seat of the water sealing roller through a horizontal connecting rod, and one side of the connecting device, which is close to the descaling box, is connected with a swing angle limiting device.
5. The finish rolling descaling box inlet water-sealing device of claim 1, characterized in that: and a drainage baffle is arranged between the frame structure and the descaling box and welded or connected to a vertical frame of the steel frame through bolts.
6. The finish rolling descaling box inlet water-sealing device of claim 1, characterized in that: the connecting device comprises a connecting seat, a hanging rod, a connecting rod and a hanging chain, wherein the connecting seat is welded or fixed on the frame structure through a bolt, the hanging rod is connected on a vertical rod on the bottom surface of the connecting seat in a penetrating manner, the top ends of the connecting rod and the hanging chain are connected on the hanging rod, and the bottom ends of the connecting rod and the hanging chain are connected on a bearing seat of the water sealing roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220267900.2U CN217191676U (en) | 2022-02-10 | 2022-02-10 | Finish rolling descaling box entry water seal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220267900.2U CN217191676U (en) | 2022-02-10 | 2022-02-10 | Finish rolling descaling box entry water seal device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217191676U true CN217191676U (en) | 2022-08-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220267900.2U Active CN217191676U (en) | 2022-02-10 | 2022-02-10 | Finish rolling descaling box entry water seal device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217191676U (en) |
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2022
- 2022-02-10 CN CN202220267900.2U patent/CN217191676U/en active Active
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