CN214781952U

CN214781952U - Device is added to converter stove back ladle scrap steel

Info

Publication number: CN214781952U
Application number: CN202120259708.4U
Authority: CN
Inventors: 巩彦坤; 李金波; 程晓; 张涛; 段佳伟; 郝晓辉
Original assignee: Handan Iron and Steel Group Co Ltd; HBIS Co Ltd Handan Branch
Current assignee: Handan Iron and Steel Group Co Ltd; HBIS Co Ltd Handan Branch
Priority date: 2021-01-29
Filing date: 2021-01-29
Publication date: 2021-11-19
Anticipated expiration: 2031-01-29

Abstract

The utility model relates to a converter furnace rear ladle scrap adding device, which comprises a feed bin blanking pipe, a scrap hopper and a steel adding vehicle; and a feed inlet is formed in the feed bin discharging pipe and is positioned at the joint of the feed bin discharging pipe and the converter platform. But be equipped with open closed lid on the charge door, the width of charge door, highly be greater than width, the height of steel scrap hopper, the steel scrap hopper is front end open-ended square container, be equipped with the stopper on the converter platform, when the car that adds receives the restriction stop motion of stopper, the front end outlet department of steel scrap hopper is in the charge door, can effectively increase converter steel scrap and join in marriage the appetite, reduces the iron loss, promotes steelmaking productivity.

Description

Device is added to converter stove back ladle scrap steel

Technical Field

The utility model relates to a device is added to converter stove back ladle scrap steel belongs to steelmaking production auxiliary assembly technical field.

Background

The scrap steel is one of main raw materials for converter steelmaking, and mainly plays roles in cooling, reducing steelmaking cost and the like. Particularly, under the current situation that the environmental protection pressure is large and the ironmaking capacity is limited, the steel making capacity is larger than the ironmaking capacity, and the capacity can be enlarged only by eating more scrap steel as much as possible to reduce the molten iron consumption. The method for adding the steel scrap by the converter in the steel plant at present comprises the following steps: a special scrap steel crane is arranged across the converter, a scrap steel bucket is hoisted and inserted into a converter mouth, a small hook of a crown block is used for inclining the scrap steel bucket by a certain angle, and the scrap steel slides into the converter. The amount of scrap steel added each time through the scrap steel hopper is limited, because a common scrap steel crane and a molten iron crown block are in the same rail, a converter workshop is provided with a plurality of converters, molten iron generally enters from one end of the workshop and is hoisted to the converters through the molten iron crown block, when scrap steel is added into one converter, molten iron adding crown blocks of other converters are blocked, and the production rhythm is seriously influenced. How to increase the scrap steel mixing and eating in the converter through other modes is very key for increasing the yield and reducing the iron consumption of a steel plant. Although a lot of steel plants add the steel scrap through converter feed bin at present, because high-order feed bin quantity is limited, feed bin feed opening passageway is narrow simultaneously, and is higher to steel scrap quality and size requirement, often takes place the accident that the steel scrap blockked up the feed bin passageway, and the processing cycle is long, influences normal production.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a device is added to converter stove back ladle scrap steel is provided, can effectively increase converter scrap steel and join in marriage the volume of eating, reduces the iron loss, promotes the steelmaking productivity.

For solving the technical problem, the utility model discloses the technical scheme who adopts does:

a device for adding steel ladle scrap after a converter furnace comprises a feed bin blanking pipe, a scrap steel hopper and a steel adding vehicle; the feeding port is arranged at the joint of the bin blanking pipe and the converter platform, and the steel adding vehicle adds the steel scrap into the steel ladle through the feeding port by the steel scrap hopper.

The device for adding the steel ladle waste steel behind the converter is characterized in that the charging opening is provided with the openable cover body, and the width and the height of the charging opening are larger than those of the waste steel hopper.

The device is characterized in that the steel scrap hopper is a square container with an opening at the front end, the converter platform is provided with a limiter, and when the steel feeding vehicle is limited by the limiter to stop moving, the front end outlet of the steel scrap hopper is positioned in the feeding port, so that the steel scrap can be smoothly fed into the steel ladle.

The feeding port of the utility model is positioned at the joint of the blanking pipe of the storage bin and the converter platform, the position is close to the steel ladle, and the distance between the feeding port and the outlet of the blanking pipe is only about 2m, so on one hand, the waste steel is more convenient to add, if the waste steel is blocked, the dredging can be very convenient, and the added waste steel is coincided with the tapping flow, and the steel is easier to melt and is more uniform under the impact and the stirring of the steel flow; the arrangement of the limiting stopper ensures the safety in the process of adding the scrap steel.

The utility model discloses a use method does: the method comprises the steps of placing a waste steel hopper filled with waste steel in front of a steel feeding vehicle, when a converter starts to tap steel, opening a cover body on a feeding hole by an operator, starting the steel feeding vehicle to push the waste steel hopper to the feeding hole, enabling an outlet of the waste steel hopper to be located in the feeding hole of a bin blanking pipe when the steel feeding vehicle is limited to stop by a limiter, slowly lifting the tail of the waste steel hopper through the steel feeding vehicle to enable the waste steel to completely enter the blanking pipe, enabling the waste steel to enter a steel ladle along the bin blanking pipe, meeting steel flow and being impacted by the steel flow, rapidly melting and uniformly melting, driving the steel feeding vehicle to drive the waste steel hopper to leave the feeding hole by the operator after the waste steel is fed, closing the cover body on the feeding hole, and finishing one-time waste steel feeding operation.

The utility model has the advantages that:

the utility model can safely and conveniently add the steel scrap into the steel ladle, and effectively increase the scrap consumption of the converter; the device has the advantages of simple structure, low cost and flexible operation, effectively reduces the iron consumption and the iron and steel material consumption of the steel plant, and greatly reduces the production cost of enterprises.

Drawings

FIG. 1 is a schematic structural view of the present invention;

labeled as: the steel ladle furnace comprises a bin blanking pipe 1, a waste steel hopper 2, a steel adding vehicle 3, a charging hole 4, a converter platform 5, a steel ladle 6, a cover body 7, a limiter 8, a pulley 9, a handle 10, a converter 11, molten steel 12, a steel tapping hole 13, a steel flow 14 and waste steel 15.

Detailed Description

FIG. 1 shows that the utility model relates to a converter furnace rear ladle scrap adding device, which comprises a feed bin blanking pipe 1, a scrap hopper 2 and a steel adding vehicle 3; the steel adding vehicle 3 is a forklift, a feed inlet 4 is formed in a feed bin discharging pipe 1, the feed inlet 4 is located at the joint of the feed bin discharging pipe 1 and a converter platform 5, the height and the width of the feed inlet 4 are respectively 1000mm and 900mm, and slide rails are respectively arranged on 2 long sides of the feed inlet 4;

FIG. 1 shows that a cover body 7 matched with the charging opening 4 in size is arranged on the charging opening 4, a pulley 9 is arranged on 2 long edges of the cover body 7, and the opening and closing of the cover body 7 are realized through the sliding of the pulley 9 and a sliding rail; the cover body 7 is provided with a handle 10, so that the cover body 7 can be conveniently opened and closed;

fig. 1 shows that the scrap steel hopper 2 is a square hopper with an opening at the front end, and the height and the width of the scrap steel hopper 2 are respectively smaller than those of the charging opening 4, so that the scrap steel hopper 2 can smoothly enter the charging opening 4.

FIG. 1 shows that a limiter 8 is arranged on a converter platform 5, and when a forklift stops moving under the limitation of the limiter 8, an outlet at the front end of a waste steel hopper 2 is positioned in a feeding port 4, so that waste steel can be smoothly added into a steel ladle 6; the arrangement of the limiting stopper 8 can also ensure the safety of personnel and equipment in the process of adding the scrap steel.

Fig. 1 shows that the utility model has the following usage: the scrap hopper 2 filled with the scrap 15 is placed on the yoke of the forklift in advance, when the tap hole 13 of the converter 11 starts to discharge the molten steel 12, the operator holds the handle 10, pushes the lid 7 upward to open the scrap charging hole 4, then starting a forklift to push the waste steel hopper 6 filled with the waste steel 15 to the charging opening 4, stopping when the wheels of the forklift contact the limiting device, and at the moment, the front end outlet of the waste steel hopper 2 is positioned in the charging opening 4 of the blanking pipe 1 of the storage bin, the tail part of the scrap steel hopper 2 is slowly lifted by operating a forklift so that the scrap steel 15 completely enters the blanking pipe 1 of the storage bin, the scrap steel 15 enters the steel ladle 6 along the blanking pipe 1 of the storage bin through the charging opening 4, meets the steel flow 14, is impacted and stirred by the steel flow 14, is quickly melted and uniformly mixed, and after the scrap steel 15 is added, an operator drives the forklift to drive the scrap steel hopper 2 to drive away from the feeding opening 4, holds the handle 10 by hand to push the cover body 7 downwards, and closes the feeding opening 4.

The utility model discloses can effectively increase converter scrap steel and join in marriage the volume of eating, equipment structure is simple, and is with low costs, and the flexible operation has effectively reduced steel mill iron loss and iron and steel material consumption, has greatly reduced the manufacturing cost of enterprise.

Claims

1. The utility model provides a device is added to converter stove back ladle scrap steel, includes feed bin unloading pipe (1), its characterized in that: the steel feeding device also comprises a scrap steel hopper (2) and a steel feeding vehicle (3); a feed inlet (4) is formed in the bin blanking pipe (1), and the feed inlet (4) is located at the joint of the bin blanking pipe (1) and the converter platform (5).

2. The ladle scrap feeding apparatus after the converter according to claim 1, wherein: the device is characterized in that a cover body (7) which can be opened and closed is arranged on the feed opening (4), and the width and the height of the feed opening (4) are larger than those of the waste steel hopper (2).

3. The ladle scrap feeding apparatus after the converter according to claim 1, wherein: the steel scrap hopper (2) is a square container with an opening at the front end, a limiter (8) is arranged on the converter platform (5), and when the steel feeding car (3) stops moving under the limitation of the limiter (8), the front end outlet of the steel scrap hopper (2) is positioned in the feeding hole (4).