Steel rolling hot conveying roller way slag removing device
By arranging a slag receiving trough, a slag scraping mechanism and a cold slag sprayer on the hot delivery roller table of the steel rolling mill, the problems of high water consumption and incomplete slag cleaning in the existing equipment are solved, and efficient and low-cost oxide slag cleaning is achieved.
Patent Information
- Application Number
- CN202423029673.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-09
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-12-09
AI Technical Summary
The existing hot rolling roller slag cleaning device uses a large amount of water and high cost when using cold water to flush the slag. The slag is not cleaned thoroughly and requires manual processing when the machine is stopped. It is impossible to clean the oxide scale slag in a timely and effective manner.
A slag cleaning device including a slag receiving trough, a slag scraping mechanism and a cold slag sprayer is designed. The slag receiving trough is equipped with a cooling component and a slag scraping mechanism. After the oxide scale slag enters the slag receiving trough, it is scraped into the slag discharge port by the slag scraping mechanism. After being discharged, it is sprayed by the cold slag sprayer to cool down, thereby reducing water consumption and improving slag cleaning efficiency.
It significantly improves the cleaning effect of oxide scale slag, reduces operating costs, avoids clogging of slag receiving troughs, and realizes efficient and low-cost slag cleaning.
Smart Images
Figure CN223476269U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of steel rolling production equipment, specifically relating to a slag removal device for hot conveying roller table in steel rolling. Background Technology
[0002] The hot conveyor roller conveyor at the rear of the continuous casting machine is located at the junction of steelmaking and rolling. It consists of 12 sets of independently operating rollers and is responsible for transporting steel billets directly from the continuous casting workshop to the heating furnace of the rolling mill. It plays a bridging role in the entire production process and is an indispensable piece of equipment for continuous casting. The steel billets after continuous casting are directly transported to the heating furnace of the rolling mill through the hot conveyor roller conveyor, which not only makes full use of the residual temperature of the billets and reduces heat loss, gas consumption and billet heating time, but also improves the yield and shortens the product production cycle. During the transport of steel billets by existing hot-rolling conveyor rolls, oxide scale on the billet surface falls from between the rolls and onto the underside of the hot-rolling rolls. This necessitates frequent shutdowns to clean the scale. Current technology uses a slag collection trough below the hot-rolling rolls to avoid downtime and employs water cooling for cleaning. However, this cleaning device has several drawbacks: firstly, the use of cold water for slag flushing consumes a large amount of water, resulting in high costs and a heavy burden on subsequent wastewater treatment; secondly, relying on water flow for cleaning has limited power and cannot thoroughly clean the oxide scale from the collection trough in a timely manner, requiring subsequent shutdowns for manual cleaning. Therefore, developing a convenient, low-cost, and significantly improved slag-cleaning device for hot-rolling steel conveyors is objectively necessary. Summary of the Invention
[0003] The purpose of this invention is to provide a slag removal device for hot conveying rollers in steel rolling mills that is easy to use, has low operating costs, and can significantly improve the slag removal effect.
[0004] The purpose of this utility model is achieved as follows: it includes a support frame and a hot conveying roller conveying mechanism mounted on the support frame. A slag receiving groove with a top opening is provided on the support frame below the hot conveying roller conveying mechanism. The slag receiving groove is arranged along the length direction of the hot conveying roller conveying mechanism. A cooling and heat-reducing component is provided on the outside of the slag receiving groove. A slag scraping mechanism is provided in the lower part of the slag receiving groove along the length direction of the slag receiving groove. A slag discharge port is provided at the bottom of one end of the slag scraping mechanism. A cold slag sprayer is provided in the slag receiving groove above the slag discharge port. A gear transmission mechanism that is driven by the cold slag sprayer is provided on the slag receiving groove.
[0005] Compared with existing technologies, the advantages of this device are as follows: First, the device optimizes the structure of the slag receiving trough. After the oxide scale falling from the hot conveying roller mechanism enters the slag receiving trough, the cooling components can cool the oxide scale, preventing thermal deformation of the slag receiving trough. At the same time, the scraping mechanism can promptly scrape the oxide scale from one end of the slag receiving trough to the other end, and finally discharge it through the slag discharge port. This avoids clogging of the slag receiving trough and significantly improves the cleaning effect of oxide scale. Second, the oxide scale discharged from the slag discharge port is sprayed by the cold slag sprayer, which further reduces the temperature of the oxide scale. The cold slag sprayer has a reasonable structural design, which can save water consumption and further reduce the cost of oxide scale cooling. This device has the advantages of being easy to use, having low operating costs, and having good slag cleaning effect, and is easy to promote and use. Attached Figure Description
[0006] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0007] Figure 2 for Figure 1 BB view in the middle;
[0008] Figure 3 for Figure 1 CC view in the middle;
[0009] Figure 4 for Figure 1 An enlarged schematic diagram of part A in the middle;
[0010] In the diagram: 1-Support frame, 2-Hot conveying roller conveying mechanism, 3-Slag receiving trough, 301-Upper trough, 302-Transition trough, 303-Lower trough, 4-Slag discharge port, 5-Cooling jacket, 6-Medium inlet pipe, 7-Medium outlet pipe, 8-Baffle plate, 9-First motor, 10-Driven shaft, 11-Driven shaft, 12-Drive chain, 13-Driven sprocket, 14-Driven sprocket, 15-Slag scraper, 16-Rubber strip, 17-Spray main pipe, 18-Water inlet pipe, 19-Spray branch pipe, 20-Hydrophobic membrane, 21-Second motor, 22-Driven bevel gear, 23-Driven bevel gear, 24-Drive shaft. Detailed Implementation
[0011] The present invention will be further described below with reference to the accompanying drawings, but this description is not intended to limit the present invention in any way. Any changes or improvements made based on the teachings of the present invention shall fall within the protection scope of the present invention.
[0012] like Figures 1-4As shown, this utility model includes a support frame 1 and a hot conveying roller conveying mechanism 2 mounted on the support frame 1. The hot conveying roller conveying mechanism 2 is a structure used in the prior art, including multiple hot conveying rollers and a driver for driving the hot conveying pipe to rotate. A slag receiving groove 3 with a top opening is provided on the support frame 1 below the hot conveying roller conveying mechanism 2. The slag receiving groove 3 is arranged along the length direction of the hot conveying roller conveying mechanism 2. A cooling and temperature reduction component is provided on the outside of the slag receiving groove 3. A slag scraping mechanism is provided in the lower part of the slag receiving groove 3 along the length direction of the slag receiving groove 3. A slag discharge port 4 is provided at the bottom of one end of the slag scraping mechanism. A cold slag sprayer is provided in the slag receiving groove 3 above the slag discharge port 4. A gear transmission mechanism that is driven by the cold slag sprayer is provided on the slag receiving groove 3.
[0013] The process of using this device is as follows: during the conveying of the continuously cast steel billet by the hot conveying roller conveyor 2, the oxide scale on the billet falls downwards from the hot-rolled slag conveyor 2 into the slag receiving trough 3 after being conveyed and rubbed. The cooling components installed outside the slag receiving trough 3 can cool down the oxide scale to prevent thermal deformation of the slag receiving trough 3. The scraping mechanism installed inside the slag receiving trough 3 can scrape the oxide scale from one end of the slag receiving trough 3 into the other end of the slag receiving trough 3 in a timely manner, and finally into the slag discharge port 4. This can avoid the blockage of the slag receiving trough 3 and can significantly improve the cleaning effect of oxide scale. After being sprayed by the cold slag sprayer, the oxide scale in the slag discharge port 3 can be further cooled down. The oxide scale after being sprayed and cooled will be continuously discharged from the slag discharge port 3. The setting of the scraping mechanism and the cold slag sprayer can ensure that the oxide scale in the slag receiving trough 3 is discharged from the slag receiving trough 3 in a timely and thorough manner.
[0014] Furthermore, the cooling and heat-reducing assembly includes a cooling jacket 5, a medium inlet pipe 6, and a medium outlet pipe 7. The cooling jacket 5 is spaced apart on the outside of the slag receiving tank 3. The medium inlet pipe 6 is located at the upper part of the cooling jacket 5, and the medium outlet pipe 7 is located at the bottom of the slag receiving tank 3. When the cooling and heat-reducing assembly cools the slag receiving tank 3, it delivers cooling medium into the cooling jacket 5 through the medium inlet pipe 6. The cooling medium can be cooling water or cooling air. After entering the cooling jacket 5, the cooling medium fills the space between the cooling jacket 5 and the slag receiving tank 3, thereby cooling the slag receiving tank 3. The cooling medium, after absorbing heat, is discharged from the medium outlet pipe 7. Cooling the slag receiving tank 3 through this process prevents the slag receiving tank 3 from deforming due to heat. To prolong the residence time of the cooling medium in the cooling jacket 5 and improve the cooling and heat-reducing effect, multiple baffles 8 are installed alternately in the space between the cooling jacket 5 and the side wall of the slag receiving tank 3.
[0015] In order to improve the slag discharge speed in the slag receiving tank 3, the slag receiving tank 3 includes an upper tank body 301, a transition tank body 302 and a lower tank body 303 connected from bottom to top. The longitudinal cross-sectional shape of the upper tank body 301 is rectangular, the longitudinal cross-sectional shape of the transition tank body 302 is a cone shape with a larger upper end and a smaller lower end, and the longitudinal cross-sectional shape of the lower tank body 303 is semi-circular.
[0016] Furthermore, the slag scraping mechanism includes a first motor 9, a driving shaft 10, a driven shaft 11, and a transmission chain 12. The first motor is a structure used in the prior art, and a finished product can be directly purchased according to the power required. The driving shaft 10 is rotatably installed at one end inside the slag receiving trough 3, and the driven shaft 11 is rotatably installed at the other end inside the slag receiving trough 3. The first motor 9 is installed on the outside of the slag receiving trough 3 and is connected to the driving shaft 10 for transmission. The two ends of the driving shaft 10 are equipped with driving sprockets 13, and the two ends of the driven shaft 11 are equipped with driven sprockets 14. The transmission chain 12 is tensioned and installed between the corresponding driving sprockets 13 and driven sprockets 14 on both sides. Multiple slag scraping plates 15 are evenly spaced on the surface of the transmission chain 12. The slag scraping plates 15 are adapted to the bottom of the slag receiving trough 3. When it is necessary to clean the oxide scale slag in the slag receiving trough 3, the first motor 9 is turned on, and the first motor 9 drives the driving shaft 10 to rotate. The rotating shaft 10 rotates, driving the active sprockets 13 at both ends to rotate. During the rotation of the active sprockets 13, the driven sprockets 14 are driven to rotate via the transmission chain 12. The rotation of the driven sprockets 14 drives the scraper 15 to rotate along with the transmission chain 12. As the scraper 15 moves, it scrapes the oxide scale in the slag receiving tank 3 from one end to the other, and finally discharges it through the slag discharge port 4. By using the reciprocating movement of the scraper 15 to scrape the slag, the slag receiving tank 3 can be quickly cleaned, and the effect is good. Preferably, a rubber strip 16 is detachably installed on the edge of the scraper 15 that contacts the bottom of the slag receiving tank 3. The shape of the rubber strip 16 is adapted to the shape of the bottom of the slag receiving tank 3. The use of the rubber strip 16 can make the scraper 15 contact the bottom of the slag receiving tank 3 more tightly, and can better clean the oxide scale at the bottom of the slag receiving tank 3. The slag discharge efficiency is high, the cleaning effect is good, and the service life is long.
[0017] Furthermore, the sprayer includes a main spray pipe 17 and a water inlet pipe 18. The main spray pipe 17 is vertically and rotatably installed in the slag receiving tank 3 via a connecting frame. The outlet of the water inlet pipe 18 is inserted into the upper end of the main spray pipe 17. The lower end of the main spray pipe 17 is sealed by a base plate. Multiple spray branch pipes 19 connected to the main spray pipe 17 are installed on it. The ends of the spray branch pipes 19 are sealed by sealing plates. Multiple spray holes are machined on the pipe walls of the spray branch pipes 19. A hydrophobic membrane 20 is provided inside the spray holes. The gear transmission mechanism is connected to the upper end of the main spray pipe 17. The gear transmission mechanism drives the main spray pipe 17 to rotate, and the main spray pipe 17 drives the spray branch pipes 19 to rotate. The cooling water entering the main spray pipe 17 from the inlet pipe 18 will then enter each spray branch pipe 19, and then permeate out from the hydrophobic membrane 20 on the spray branch pipes 19 to contact the oxide scale slag, thereby cooling the oxide scale slag. The spray branch pipes 19 simultaneously cool the oxide scale slag. Stirring allows cooling water to seep out and contact the oxide scale, significantly improving the cooling efficiency of the oxide scale. Preferably, the gear transmission mechanism includes a second motor 21, a driving bevel gear 22, and a driven bevel gear 23. The second motor 21 is a structure used in the prior art, and finished products can be purchased directly according to the power required. The second motor 21 is installed on the outside of the slag receiving tank 3. A transmission shaft 24 extending into the slag receiving tank 3 is rotatably mounted on the output shaft of the second motor 21. The driving bevel gear 22 is mounted on the transmission shaft 24, and the driven bevel gear 23 is mounted on the main spray pipe 17 and meshes with it. In use, the second motor 21 drives the transmission shaft 24 to rotate, and the transmission shaft 24 drives the driving bevel gear 22 to rotate. During the rotation of the driving bevel gear 22, the driven bevel gear 23 rotates, and during the rotation of the driven bevel gear 23, the main spray pipe 17 and the spray branch pipe 19 rotate synchronously.
Claims
1. A slag removal device for hot conveying roller table in steel rolling, comprising a support frame (1) and a hot conveying roller conveying mechanism (2) mounted on the support frame (1), characterized in that: A slag receiving trough (3) with a top opening is provided on the support frame (1) below the hot conveying roller conveying mechanism (2). The slag receiving trough (3) is arranged along the length direction of the hot conveying roller conveying mechanism (2). A cooling and temperature reduction component is provided on the outside of the slag receiving trough (3). A slag scraping mechanism is provided in the lower part of the slag receiving trough (3) along the length direction of the slag receiving trough (3). A slag discharge port (4) is provided at the bottom of one end of the slag scraping mechanism. A cold slag sprayer is provided in the slag receiving trough (3) above the slag discharge port (4). A gear transmission mechanism that is connected to the cold slag sprayer is provided on the slag receiving trough (3).
2. The slag removal device for hot conveying roller table of steel rolling according to claim 1, characterized in that: The cooling and cooling assembly includes a cooling jacket (5), a medium inlet pipe (6), and a medium outlet pipe (7). The cooling jacket (5) is spaced apart on the outside of the slag receiving tank (3). The medium inlet pipe (6) is located on the upper part of the cooling jacket (5), and the medium outlet pipe (7) is located at the bottom of the slag receiving tank (3).
3. The slag removal device for hot conveying rollers in steel rolling mills according to claim 2, characterized in that: Multiple baffles (8) are installed alternately in the space between the cooling jacket (5) and the slag receiving tank (3).
4. The slag removal device for hot conveying rollers in steel rolling mills according to claim 1, characterized in that: The slag receiving tank (3) includes an upper tank (301), a transition tank (302), and a lower tank (303) connected sequentially from bottom to top. The longitudinal cross-sectional shape of the upper tank (301) is rectangular, the longitudinal cross-sectional shape of the transition tank (302) is a cone shape with a larger upper end and a smaller lower end, and the longitudinal cross-sectional shape of the lower tank (303) is semi-circular.
5. A slag removal device for hot conveying rollers in steel rolling mills according to claim 1, characterized in that: The slag scraping mechanism includes a first motor (9), a drive shaft (10), a driven shaft (11), and a transmission chain (12). The drive shaft (10) is rotatably installed at one end in the slag receiving trough (3), and the driven shaft (11) is rotatably installed at the other end in the slag receiving trough (3). The first motor (9) is installed on the outside of the slag receiving trough (3) and is connected to the drive shaft (10) for transmission. Drive sprockets (13) are installed at both ends of the drive shaft (10), and driven sprockets (14) are installed at both ends of the driven shaft (11). The transmission chain (12) is tensioned between the corresponding drive sprockets (13) and driven sprockets (14) on both sides. Multiple slag scraping plates (15) are installed at equal intervals on the surface of the transmission chain (12), and the slag scraping plates (15) are adapted to the bottom of the slag receiving trough (3).
6. A slag removal device for hot conveying rollers in steel rolling mills according to claim 5, characterized in that: A rubber strip (16) is detachably installed on the edge of the scraper (15) that contacts the bottom of the slag receiving trough (3).
7. A slag removal device for hot conveying rollers in steel rolling mills according to claim 1, characterized in that: The sprayer includes a main spray pipe (17) and an inlet pipe (18). The main spray pipe (17) is vertically and rotatably installed in the slag receiving tank (3) via a connecting frame. The outlet of the inlet pipe (18) is inserted into the upper end of the main spray pipe (17). The lower end of the main spray pipe (17) is sealed by a base plate. Multiple spray branch pipes (19) connected to the main spray pipe (17) are installed on it. The ends of the spray branch pipes (19) are sealed by sealing plates. Multiple spray holes are machined on the pipe wall of the spray branch pipes (19). A hydrophobic membrane (20) is provided in the spray holes. The gear transmission mechanism is connected to the upper end of the main spray pipe (17).
8. A slag removal device for hot conveying rollers in steel rolling mills according to claim 7, characterized in that: The gear transmission mechanism includes a second motor (21), a driving bevel gear (22), and a driven bevel gear (23). The second motor (21) is installed on the outside of the slag receiving trough (3). A transmission shaft (24) extending into the slag receiving trough (3) is rotatably mounted on the output shaft of the second motor (21). The driving bevel gear (22) is mounted on the transmission shaft (24). The driven bevel gear (23) is mounted on the spray main pipe (17) and meshes with the driven bevel gear (23).