CN219174534U - Safety device for effectively preventing steel scrap bucket chain from falling off - Google Patents
Safety device for effectively preventing steel scrap bucket chain from falling off Download PDFInfo
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- CN219174534U CN219174534U CN202320112834.6U CN202320112834U CN219174534U CN 219174534 U CN219174534 U CN 219174534U CN 202320112834 U CN202320112834 U CN 202320112834U CN 219174534 U CN219174534 U CN 219174534U
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Abstract
The utility model discloses a safety device for effectively preventing a steel scrap bucket chain from falling off, which comprises a steel scrap bucket, wherein two sides of the steel scrap bucket are respectively provided with a lifting lug, a main hook chain bypasses the lifting lug to lift the steel scrap bucket, front and rear auxiliary bolts are respectively arranged in front of and behind the lifting lug at two sides of the steel scrap bucket, an auxiliary chain is connected between the front and rear auxiliary bolts, and the auxiliary chain is positioned at the outer side of the main hook chain and respectively pressed on trunnions of the lifting lugs to prevent the main hook chain from falling off the lifting lug; the front auxiliary bolt and the waste steel bucket wall are welded and fixed together, the rear auxiliary bolt is H-shaped, a T-shaped chute is arranged in the waste steel bucket wall corresponding to the rear auxiliary bolt, and the rear auxiliary bolt is installed in the chute by self-weight fit.
Description
Technical Field
The utility model relates to a safety device for effectively preventing a steel scrap bucket chain from falling off.
Background
In the metallurgical industry, in converter smelting in a steel mill, scrap steel is an important raw material for converter smelting, and the safe and rapid charging of the scrap steel is particularly important. For steelmaking, the time is one minute and one second, and the production rate of the converter and the yield of a steelworks are directly influenced.
The steel scrap bucket lifting device used in the existing steel mill is basically a combined device of a main hook chain type and an auxiliary hook type, after the main hook chain is hung into trunnions on two sides of the steel scrap bucket, the head of the steel scrap bucket is required to be lapped at a converter mouth in the steel scrap feeding process, when steel scrap is added, the main hook chain can loose, bend and swing along with the change of the angle of the converter, the risk of chain falling easily occurs, and the falling times are as high as 10 times each day. If the chain falls off, the steel scrap adding operation cannot be continued due to uneven stress of the chains at two sides, and the steel scrap bucket falling accident can be caused, the steel scrap adding operation is completed after the chain is hung again in production, and the safety and the rapidness of the steel scrap adding operation of the converter are greatly influenced. According to the technological path of smelting molten iron in one tank, after molten iron is pulled to steelmaking process, molten iron is sampled one by one according to bags, and after the components are tested, the scrap steel is added, and after the molten iron component comes out, the time for adding the scrap steel is very quick, so that the control of the time in any link of the scrap steel adding operation is very critical, and the production rhythm of the converter is directly influenced. The utility model is characterized in that an anti-falling safety protection device is additionally arranged on the main hook chain from the aspects of safety, high efficiency, economy and convenience, so that the falling accident of the scrap steel hopper caused by falling of the chain when the scrap steel hopper is added into the scrap steel of the furnace is prevented, and the influence on the production efficiency caused by falling of the scrap steel hopper is eliminated.
No system is known to effectively consult the safety anti-falling measures or devices specially aiming at preventing the scrap steel bucket from falling off in scrap steel adding operation, no specific implementation method is found in the related literature, only the effect of the scrap steel bucket and the operation of adding scrap steel to a converter are conceptually described, and no detailed description and reference basis are specifically made on the related equipment how to prevent the scrap steel bucket chain from falling off or falling off.
Disclosure of Invention
The utility model aims to provide a safety device for effectively preventing a steel scrap bucket chain from falling off, which can furthest ensure that the steel scrap bucket is safe and quick in the process of lifting and feeding steel scrap into a furnace, thoroughly eliminates the safety risk and has remarkable effect.
The technical scheme adopted by the utility model is that the safety device for effectively preventing the steel scrap bucket chain from falling comprises a steel scrap bucket, wherein two sides of the steel scrap bucket are respectively provided with a lifting lug, a main hook chain bypasses the lifting lug to lift the steel scrap bucket, front and rear auxiliary bolts are respectively arranged in front of and behind the lifting lug at two sides of the steel scrap bucket, an auxiliary chain is connected between the front and rear auxiliary bolts, and the auxiliary chain is positioned at the outer side of the main hook chain and respectively pressed on the trunnion of the lifting lug to prevent the main hook chain from falling off the lifting lug; the front auxiliary bolt and the waste steel bucket wall are welded and fixed together, the rear auxiliary bolt is H-shaped, a T-shaped chute is arranged in the waste steel bucket wall corresponding to the rear auxiliary bolt, and the rear auxiliary bolt is installed in the chute by self-weight fit.
The utility model solves the core problem of how to design a safe, quick, economical and effective device by utilizing the existing equipment device, and realizes safe, simple, quick and firm operation. By carrying out on-site tracking research on the existing steel scrap hopper, the existing device of the steel scrap hopper is fully utilized, and an easy-to-operate device for preventing the main hook chain from falling is designed at the trunnion part of the steel scrap hopper.
Taking an 80t converter as an example test with a waste steel bucket with the capacity of 20 tons of waste steel, modifying the waste steel bucket according to a design drawing and implementation steps, continuously tracking the operation activity of adding the waste steel for one month after implementing the safety device, and avoiding the phenomenon of falling of a lifting tool chain of the waste steel bucket.
Counting according to the original scrap steel bucket device, the time for one-time falling treatment needs 10 minutes, accounting for about 15 tons/time of capacity loss, and according to the calculation of 10 times of falling per day, after the device is implemented, the capacity is increased by 150 tons per day. The production capacity is improved, so that economic benefits are brought to steel plants, and the production stability and continuity of steelmaking processes are ensured. The anti-drop safety device is verified on site from the actual production site, is simple to operate, is light and handy, is greatly convenient for operators, can effectively lighten the labor intensity and the operation time of the operators, fully ensures the safety of scrap steel adding operation, and solves the potential safety hazard. The new device has remarkable effect after being put into a steel mill.
Drawings
Fig. 1 is a schematic diagram of a front view structure of the present utility model.
Description of the embodiments
The safety device for effectively preventing the steel scrap bucket chain from falling off comprises a steel scrap bucket, wherein two sides of the steel scrap bucket are respectively provided with a lifting lug 3, a main hook chain 4 bypasses the lifting lug 3 to lift the steel scrap bucket, front and rear auxiliary bolts 1 and 6 are respectively arranged in front of and behind the lifting lug 3 on two sides of the steel scrap bucket, an auxiliary chain 2 is connected between the front auxiliary bolt 1 and the rear auxiliary bolt 6, and the auxiliary chain 2 is positioned on the outer side of the main hook chain 4 and respectively pressed on trunnions of the lifting lug 3 to prevent the main hook chain 4 from falling off from the lifting lug 3; the front auxiliary bolt 1 is welded and fixed with the steel scrap bucket wall, the rear auxiliary bolt 6 is H-shaped, namely, the outer side end and the inner side end of the rear auxiliary bolt 6 are respectively provided with a nut blocking head, a T-shaped chute 5 is arranged in the steel scrap bucket wall corresponding to the rear auxiliary bolt 6, and the rear auxiliary bolt 6 is matched by self weight and is installed in the chute 5 through the nut blocking heads at the inner side end. Therefore, the auxiliary chain 2 can be conveniently taken down from the lifting lug 3, the main hook chain 4 is convenient to replace, and after the replacement is finished, the nut blocking head at the inner side end of the rear auxiliary bolt 6 is put into the sliding groove 5 and slides to the lower end of the sliding groove 5.
Claims (1)
1. The utility model provides an effectively prevent safety device that steel scrap bucket chain drops, includes steel scrap bucket, and steel scrap bucket both sides are provided with a lug respectively, and the main hook chain bypasses the lug and lifts by crane steel scrap bucket, characterized by: front and rear auxiliary bolts are respectively arranged in front of and behind the lifting lugs on the two sides of the steel scrap hopper, an auxiliary chain is connected between the front and rear auxiliary bolts, and the auxiliary chain is positioned on the outer side of the main hook chain and respectively pressed on the trunnion of the lifting lugs to prevent the main hook chain from falling off the lifting lugs; the front auxiliary bolt and the waste steel bucket wall are welded and fixed together, the rear auxiliary bolt is H-shaped, a T-shaped chute is arranged in the waste steel bucket wall corresponding to the rear auxiliary bolt, and the rear auxiliary bolt is installed in the chute by self-weight fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320112834.6U CN219174534U (en) | 2023-01-20 | 2023-01-20 | Safety device for effectively preventing steel scrap bucket chain from falling off |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320112834.6U CN219174534U (en) | 2023-01-20 | 2023-01-20 | Safety device for effectively preventing steel scrap bucket chain from falling off |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219174534U true CN219174534U (en) | 2023-06-13 |
Family
ID=86675630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320112834.6U Active CN219174534U (en) | 2023-01-20 | 2023-01-20 | Safety device for effectively preventing steel scrap bucket chain from falling off |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219174534U (en) |
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2023
- 2023-01-20 CN CN202320112834.6U patent/CN219174534U/en active Active
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