CN106735030B - Iron scale collecting device and method for casting blank hot conveying system - Google Patents
Iron scale collecting device and method for casting blank hot conveying system Download PDFInfo
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- CN106735030B CN106735030B CN201710031079.8A CN201710031079A CN106735030B CN 106735030 B CN106735030 B CN 106735030B CN 201710031079 A CN201710031079 A CN 201710031079A CN 106735030 B CN106735030 B CN 106735030B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/12—Accessories for subsequent treating or working cast stock in situ
- B22D11/128—Accessories for subsequent treating or working cast stock in situ for removing
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Abstract
The invention provides an iron scale collecting device and method for a casting blank hot conveying system, wherein the device comprises: the first belt conveyor and the second belt conveyor are arranged below the hot conveying roller way along the direction of the hot conveying roller way, and an interval is formed between the first belt conveyor and the second belt conveyor; the hopper transport vehicle is provided with a first hopper for containing the iron oxide scale, and the hopper transport vehicle arrives at a loading station when moving to a position below the interval along a direction vertical to the hot conveying roller way; the cantilever crane is located beside the hot conveying roller way, the hopper transport vehicle moves to the hoisting range of the cantilever crane along the direction perpendicular to the hot conveying roller way, namely reaches the hoisting station, the hopper transport vehicle moves to the loading and transporting station, iron oxide scales generated by casting blanks are collected, the first hopper full of the collected iron oxide scales are transported to the hoisting station, and the first hopper is hoisted by the cantilever crane to the transport vehicle to be transported away. The invention improves the collection rate of the iron oxide scale of the heat delivery system and effectively reduces the labor intensity of field workers.
Description
Technical Field
An iron scale collecting device and method for a casting blank hot conveying system belong to the technical field of continuous casting process and resource comprehensive utilization.
Background
Steel enterprises are the basic industry of national economy, the steel yield is continuously improved in recent years under the situation of rapid development of national economy, and the crude steel yield reaches 8.04 multiplied by 10 in 2015 years of China8t/a, accounting for 49.5% of the global crude steel production.
With the development and maturity of continuous casting technology, a continuous casting billet hot charging and hot conveying technology which fully utilizes the self heat energy of a continuous casting billet becomes one of important means for energy conservation and consumption reduction in steel production enterprises. The scale is an oxide generated in the billet in the continuous casting production process, the output is generally 5kg/t billet, and the main component of the scale is Fe2O3、Fe3O4FeO, a small amount of iron and other impurity elements, the total iron content of the iron-containing composite material reaches more than 70 percent, and the recycling value is high. In the process of the casting blank hot conveying system, iron oxide scales can fall off due to the reasons of friction between the casting blanks and the roller way, collision between the casting blanks and the buffer and the like, and the iron oxide scales are long below the roller way of the casting blank hot conveying systemA large amount of iron scales are arranged, manual cleaning is generally adopted on site, the cleaning amount is large, the iron scale cleaning space is small, and the problems of large cleaning difficulty, unclean cleaning and the like easily occur.
According to the invention, the iron scale collecting and transferring device is creatively arranged at the bottom of the casting blank hot conveying system, so that the iron scale generated by the casting blank hot conveying system is transferred out periodically, the automation degree is high, the iron scale collecting rate of the hot conveying system is improved, the labor intensity of field workers is effectively reduced, and higher economic benefit and social benefit are achieved.
Disclosure of Invention
An iron scale collecting device for a casting blank hot delivery system comprises: the first belt conveyor and the second belt conveyor are arranged below the hot-feeding roller way along the direction of the hot-feeding roller way, and an interval is formed between the first belt conveyor and the second belt conveyor; the hopper transport vehicle is provided with a first hopper for containing iron oxide scales, and the hopper transport vehicle reaches a shipping station when moving to a position below the interval along a direction perpendicular to the hot conveying roller way; the cantilever crane is positioned beside the hot conveying roller way, the hopper transport vehicle moves to the hoisting range of the cantilever crane along the direction perpendicular to the hot conveying roller way, namely reaches a hoisting station, the hopper transport vehicle moves to a loading and transporting station, iron oxide scales generated by casting blanks are collected, a fully collected first hopper is conveyed to the hoisting station, and the first hopper is hoisted to a transport vehicle by the cantilever crane to be transported away.
Preferably, the hopper transport vehicle moves between the loading station and the lifting station along the moving track, the loading station and the lifting station are respectively provided with a limit switch, and the limit switches are in circuit connection with an electric control system of the hopper transport vehicle, so that the starting and stopping of the hopper transport vehicle between the loading station and the lifting station are automatically controlled.
Preferably, a material level meter is installed on the inner side of the first hopper, when the material level reaches a set limit value, the material level meter sends a signal to the electric control system, and the electric control system controls the hopper transport vehicle to move to the lifting station.
Preferably, the hopper transport vehicle is further provided with a second hopper, when the hopper transport vehicle moves to a shipping station, the first hopper is positioned under the interval, the iron oxide scales are collected in the first hopper firstly, when the iron oxide scales in the first hopper are fully collected, the hopper transport vehicle moves to the first lifting station, the second hopper is positioned under the interval, the first hopper is lifted to the transport vehicle by the cantilever crane and is conveyed away, a new first hopper is placed at the position of the original first hopper, when the second hopper is fully collected, the hopper transport vehicle moves to a second lifting station opposite to the first lifting station at the other side of the hot conveying roller way, the first hopper is positioned under the interval again, the second hopper is lifted to the transport vehicle by the cantilever crane and is conveyed away, and a new second hopper is placed at the position of the original second hopper.
Preferably, guide plates are further arranged on roller ways on two sides of the first belt conveyor and the second belt conveyor, the guide plates are inclined downwards from two sides to the direction of the belt conveyors, and iron oxide scales generated in the casting blank hot conveying process fall onto the first belt conveyor and the second belt conveyor along the guide plates.
Preferably, the maximum tolerance temperature of the first belt conveyor and the second belt conveyor is not lower than 250 ℃.
According to another aspect of the invention, the method for collecting the iron scale for the casting blank hot conveying system is carried out by using the iron scale collecting device, and comprises the following steps: 1) the hopper transport vehicle moves to a loading station, so that a first hopper on the hopper transport vehicle is just positioned below the first belt conveyor and the second belt conveyor at intervals; 2) starting a casting blank hot conveying system, wherein iron oxide scales generated in the casting blank hot conveying process fall onto a first belt conveyor and a second belt conveyor along a guide plate, and the iron oxide scales generated by the casting blanks passing through the interval between the first belt conveyor and the second belt conveyor directly fall into a first hopper; 3) after the first hopper is filled with the iron scale, starting the first belt conveyor and the second belt conveyor, and unloading the iron scale on the belts into the first hopper; 4) after unloading, the hopper transport vehicle moves to the lifting station along the moving track, the cantilever crane lifts the first hopper to the transport vehicle to be transported away, and a new first hopper is placed on the hopper transport vehicle.
Preferably, when the hopper transport vehicle moves to the loading station, the first hopper is positioned below the interval, the iron oxide scales are collected in the first hopper firstly, after the iron oxide scales in the first hopper are fully collected, the hopper transport vehicle moves to the first hoisting station, the second hopper is positioned below the interval, the first hopper is hoisted to the transport vehicle by the cantilever crane and is transported away, a new first hopper is placed at the position of the original first hopper, after the second hopper is fully collected, the hopper transport vehicle moves to a second hoisting station on the other side of the hot conveying roller way, which is opposite to the first hoisting station, so that the first hopper is positioned below the interval again, the second hopper is hoisted to the transport vehicle by the cantilever crane and is transported away, and a new second hopper is placed at the position of the original second hopper.
According to the invention, the iron scale collecting and transferring device is creatively arranged at the bottom of the casting blank hot conveying system, and iron scales generated by the casting blank hot conveying system are transferred out periodically, so that the collection rate of the iron scales of the hot conveying system is improved, the labor intensity of field workers is effectively reduced, and the iron and steel casting hot conveying system is worthy of being popularized and applied in iron and steel enterprises.
Drawings
The above features and technical advantages of the present invention will become more apparent and readily appreciated from the following description of the embodiments thereof taken in conjunction with the accompanying drawings.
FIG. 1 is a plan view of an iron scale collecting apparatus for a slab heat transport system according to a first embodiment of the present invention;
FIG. 2 is a sectional view taken along line A-A of FIG. 1;
FIG. 3 is a sectional view taken along line B-B of FIG. 1;
FIG. 4 is a cross-sectional view taken along line C-C of FIG. 1;
FIG. 5 is a first plan view of an iron scale collecting device for a slab heat transfer system according to a second embodiment of the present invention;
fig. 6 is a plan view of a scale collecting apparatus for a slab heat transport system according to a second embodiment of the present invention.
The device comprises a casting blank 1, a hot conveying roller way 2, a motor 3, a first belt conveyor 4, a cantilever crane 5, a movable rail 6, a hopper transport vehicle 7, a hopper 8, a support beam 9, a transport vehicle 10, a second belt conveyor 11, a guide plate 12 and a heating furnace 13.
Detailed Description
Embodiments of an iron scale collecting apparatus and method for a slab heat transport system according to the present invention will be described with reference to the accompanying drawings. Those of ordinary skill in the art will recognize that the described embodiments can be modified in various different ways, or combinations thereof, without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are illustrative in nature and not intended to limit the scope of the claims.
First embodiment
In the casting blank hot conveying system, a motor 3 drives a hot conveying roller table 2 to convey a casting blank 1 from a continuous casting process to a rolling process, and as shown in fig. 1 to 4, a plurality of motors 3 are supported by concrete or other devices to drive a plurality of rollers to rotate so as to convey the casting blank. The first belt conveyor 4 and the second belt conveyor 11 are arranged below the hot conveying roller way 2 and in the direction parallel to the hot conveying roller way, the belt width is 800mm, the highest temperature resistance is 250 ℃, and the running speed is 0.8 m/s. The first belt conveyor 4 and the second belt conveyor 11 are spaced apart from each other on the support beam 9 of the hot-feed roller bed 2, but the first belt conveyor 4 and the second belt conveyor 11 may be spaced apart from each other on the hot-feed roller bed, and the hopper carriage may be moved with a space. The spacing is not particularly required as long as it facilitates the sliding of the scale from the belt into the hopper. A moving track 6 is further arranged below the supporting beam 9, the moving track 6 is arranged along the direction perpendicular to the hot roller conveying table, and a hopper transport vehicle for moving the collected iron oxide scales out of the hot roller conveying table 2 is arranged on the moving track 6. Before the casting blank 1 is hot-fed, the hopper transport vehicle 7 moves to a position below a supporting beam 9 of the hot-feeding roller way 2 along the moving track 6, so that a hopper on the hopper transport vehicle 7 is just positioned below the interval between the first belt conveyor 4 and the second belt conveyor 11, namely a loading station. The volume of the hopper is about 0.5m3. As shown in fig. 2, guide plates 12 are further provided on both sides of the first belt conveyor 4 and the second belt conveyor 11 on the roller table, the guide plates 12 are inclined from both sides toward the belt direction, and the cast slab is cast on1, iron oxide scales generated in the hot feeding process fall into the first belt conveyor 4 and the second belt conveyor 11 along the guide plate 12. Iron oxide scales generated by the casting blanks passing through the interval between the first belt conveyor 4 and the second belt conveyor 11 directly fall into the hopper 8. After the casting blank hot conveying system operates for a period of time, the first belt conveyor 4 and the second belt conveyor 11 are started to discharge iron scales on the belts into the hopper 8, after the discharging is finished, the hopper transport vehicle 7 moves to a lifting station along the moving rail 6, and the cantilever crane 5 lifts the hopper 8 to the transport vehicle 10 to transport away.
The hopper transport vehicle is driven by a motor, and the running speed is about 20 m/min. And the lifting device moves back and forth between the loading station and the lifting station. The movement of the hopper wagon can be controlled by the electric control system, for example, the first limit stop is arranged on the moving track 6, when the vehicle runs to touch the first limit stop, the hopper wagon is stopped to run, the limit stop moves to cause the limit switch to be switched on, and the limit switch is in circuit connection with the electric control system, so that the electric control system stops the motor of the hopper wagon, and the hopper wagon stops at the loading and transporting station. Similarly, a second limit stop is also arranged on the moving track 6, and when the hopper transport vehicle runs to the lifting station, the hopper transport vehicle is also stopped at the lifting station.
In addition, a material level meter can be arranged on the inner side of the hopper and used for measuring the material level height in the hopper, when the material level reaches a set limit value, the material level meter sends a signal to the electric control system, and the electric control system controls the hopper transport vehicle to move to the lifting station.
Second embodiment
For continuous loading and unloading, two magazines may be provided on the magazine transporter, with one boom 51, 52 on each side. As shown in fig. 5 and 6, when the hopper transport vehicle moves to the shipping station, the hopper 82 is under the support beam 9, and the iron oxide scale is first collected in the hopper 82. When the iron oxide scales in the hopper 82 are fully collected, the hopper transport vehicle moves to the left side to the first lifting station, the hopper 81 is located below the supporting beam 9, the cantilever crane 52 lifts the hopper 82 to the transport vehicle 10 to be transported away, and a new hopper 82 is placed at the original hopper 82. While hopper 81 can continue to collect scale. When the hopper 81 is fully collected, the hopper transport vehicle moves to the right side to a second lifting station on the other side of the hot roller way, which is opposite to the first lifting station, so that the hopper 82 is positioned below the support beam 9 again. The cantilever crane 51 hoists the hopper 81 to the transport vehicle 10 for transportation, and the process is repeated.
The invention also provides an iron scale collecting method for the casting blank hot conveying system. The iron scale collecting device is used and comprises the following steps:
1) the hopper transport vehicle 7 moves to the lower part of the supporting beam, so that the hopper on the hopper transport vehicle 7 is just under the interval between the first belt conveyor 4 and the second belt conveyor 11, namely a loading station.
2) And starting a casting blank hot conveying system, and allowing iron oxide scales generated in the hot conveying process of the casting blank 1 to fall into the first belt conveyor 4 and the second belt conveyor 11 along the guide plate 12. Iron oxide scales generated by the casting blanks passing through the interval between the first belt conveyor 4 and the second belt conveyor 11 directly fall into the hopper 8.
3) After the casting blank hot conveying system operates for a period of time, the iron scale is filled in the hopper, the first belt conveyor 4 and the second belt conveyor 11 are started, and the iron scale on the belts is discharged into the hopper 8.
4) After unloading, the hopper transport vehicle 7 moves to a lifting station along the moving track 6, and the cantilever crane 5 lifts the hopper 8 to the transport vehicle 10 to be transported away.
In addition, if a double-hopper mode is adopted, after the iron oxide scales in the hopper 82 are fully collected, the hopper transport vehicle moves to the left side to the first lifting station, the hopper 81 is positioned below the supporting beam 9 at the moment, the cantilever crane 52 lifts the hopper 82 to the transport vehicle 10 to be transported away, and a new hopper 82 is placed at the original hopper 82. While hopper 81 can continue to collect scale. After the hopper 81 is fully collected, the hopper transport vehicle moves to the right side to a second lifting station on the other side of the hot conveying roller way, which is opposite to the first lifting station, so that the hopper 82 is positioned below the supporting beam 9 again, the cantilever crane 51 lifts the hopper 81 to the transport vehicle 10 for transportation, and the process is repeated.
According to the invention, the iron scale collecting and transferring device is creatively arranged at the bottom of the casting blank hot conveying system, and iron scales generated by the casting blank hot conveying system are transferred out periodically, so that the collection rate of the iron scales of the hot conveying system is improved, the labor intensity of field workers is effectively reduced, and the device is suitable for popularization and application in iron and steel enterprises.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. An iron scale collecting device for a casting blank hot delivery system comprises:
the first belt conveyor and the second belt conveyor are arranged below the hot-feeding roller way along the length direction of the hot-feeding roller way, and an interval is formed between the first belt conveyor and the second belt conveyor;
the hopper transport vehicle is provided with a first hopper for containing iron oxide scales, and the hopper transport vehicle moves along the length direction perpendicular to the hot conveying roller way to enable the first hopper to be positioned below the interval, namely to reach a loading station;
the cantilever crane is positioned beside the hot conveying roller way, the hopper transport vehicle moves to the hoisting range of the cantilever crane along the length direction vertical to the hot conveying roller way, namely reaches a hoisting station,
wherein, the hopper transport vehicle moves to a loading station, collects iron oxide scales generated by casting blanks, conveys the fully collected first hopper to a first lifting station, lifts the first hopper to a transport vehicle by a cantilever crane and transports the first hopper away,
wherein, the hopper transport vehicle is also provided with a second hopper, when the hopper transport vehicle moves to a loading station, the first hopper is positioned under the interval, the iron oxide scales are firstly collected in the first hopper,
when the iron oxide scales in the first hopper are fully collected, the hopper transport vehicle moves to a first lifting station, the second hopper is positioned under the interval, the cantilever crane lifts the first hopper to the transport vehicle to be transported away, a new first hopper is placed at the original first hopper position,
and after the second hopper is fully collected, the hopper transport vehicle moves to a second lifting station on the other side of the hot conveying roller way, which is opposite to the first lifting station, so that the first hopper is positioned below the interval again, the cantilever crane lifts the second hopper to the transport vehicle to be transported away, and a new second hopper is placed at the original second hopper.
2. The iron scale collection apparatus according to claim 1, wherein the hopper wagon moves along a moving rail between a shipping station and a handling station, and,
and the limit switches are respectively arranged at the loading station and the lifting station, and the limit switches are in circuit connection with an electric control system of the hopper transport vehicle, so that the starting and stopping of the hopper transport vehicle between the loading station and the lifting station are automatically controlled.
3. An iron scale collection device according to claim 1, wherein a level indicator is mounted inside the first hopper, and when the level reaches a set limit value, the level indicator sends a signal to the electronic control system, and the electronic control system controls the hopper transport vehicle to move to the lifting station.
4. The iron scale collecting device according to claim 1, wherein guide plates are further provided on the roller ways on both sides of the first belt conveyor and the second belt conveyor, the guide plates are inclined downward from both sides to the belt conveyors, and the iron scales generated during the hot-feeding of the casting blank fall onto the first belt conveyor and the second belt conveyor along the guide plates.
5. A mill scale collection apparatus according to claim 1, wherein the first and second belt conveyors have a maximum withstand temperature of no less than 250 ℃.
6. A method for collecting iron scale for a casting blank hot conveying system, which uses the iron scale collecting device of any one of claims 1 to 5, and comprises the following steps:
1) the hopper transport vehicle moves to a loading station, so that a first hopper on the hopper transport vehicle is just positioned below the first belt conveyor and the second belt conveyor at intervals;
2) starting a casting blank hot conveying system, wherein iron oxide scales generated in the casting blank hot conveying process fall onto a first belt conveyor and a second belt conveyor along a guide plate, and the iron oxide scales generated by the casting blanks passing through the interval between the first belt conveyor and the second belt conveyor directly fall into a first hopper;
3) starting the first belt conveyor and the second belt conveyor, and unloading the iron oxide scales on the belts into the first hopper;
4) after the unloading is finished, the hopper transport vehicle moves to a first lifting station along the moving track, the cantilever crane lifts the first hopper to the transport vehicle to be transported away, a new first hopper is placed on the hopper transport vehicle,
wherein when the hopper transport vehicle moves to the loading and transporting station, the first hopper is positioned under the interval, the iron oxide scales are firstly collected in the first hopper,
when the iron oxide scales in the first hopper are fully collected, the hopper transport vehicle moves to a first lifting station, the second hopper is positioned under the interval, the cantilever crane lifts the first hopper to the transport vehicle to be transported away, a new first hopper is placed at the original first hopper position,
and after the second hopper is fully collected, the hopper transport vehicle moves to a second lifting station on the other side of the hot conveying roller way, which is opposite to the first lifting station, so that the first hopper is positioned below the interval again, the cantilever crane lifts the second hopper to the transport vehicle to be transported away, and a new second hopper is placed at the original second hopper.
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| CN201710031079.8A CN106735030B (en) | 2017-01-17 | 2017-01-17 | Iron scale collecting device and method for casting blank hot conveying system |
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| CN201710031079.8A CN106735030B (en) | 2017-01-17 | 2017-01-17 | Iron scale collecting device and method for casting blank hot conveying system |
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| CN108057863A (en) * | 2018-01-18 | 2018-05-22 | 河钢股份有限公司承德分公司 | A kind of billet caster strand dephosphorization apparatus and phosphorus removing method |
| CN108515083A (en) * | 2018-04-11 | 2018-09-11 | 新疆八钢铁股份有限公司 | Iron oxide cleaning plant under cold bed |
| CN108840064A (en) * | 2018-08-23 | 2018-11-20 | 中冶赛迪工程技术股份有限公司 | A kind of material-clearing device and sealing-tape machine of continuous operation |
| CN109513894A (en) * | 2018-12-26 | 2019-03-26 | 中冶京诚工程技术有限公司 | Small square billet iron oxide scale treatment equipment |
| CN113878049A (en) * | 2021-09-29 | 2022-01-04 | 中冶华天工程技术有限公司 | A fan vibration hopper for iron oxide scale blanking of a straightening machine and a method for collecting iron oxide scale |
| CN119056895A (en) * | 2023-05-30 | 2024-12-03 | 宝山钢铁股份有限公司 | A method for intelligently recovering iron oxide scale from steel rolling |
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Denomination of invention: An oxide scale collection device and method for hot delivery system of casting billets Effective date of registration: 20231219 Granted publication date: 20200110 Pledgee: Nanjing Zhiju Information Management Co.,Ltd. Pledgor: HUATIAN ENGINEERING & TECHNOLOGY CORPORATION, MCC Registration number: Y2023980072573 |