Converter tapping hole slag stopper adding rod convenient to use

Abstract

The utility model relates to a convenient-to-use slag stopper adding rod for a steel tapping hole of a converter, which belongs to the technical field of steel tapping tools of converters and is used for placing a slag stopper of the steel tapping hole of the converter. The push rod is a round steel pipe, the baffle is a flat plate, the area of the baffle is larger than that of a tapping hole, the front end of the push rod is vertically welded and connected with the rear plate surface of the baffle, a screw hole in the length direction of the push rod is formed in the center of the front end surface of the push rod, and a round hole corresponding to the screw hole in the front end of the push rod is formed in the plate surface of the baffle; the insertion rod is a round steel rod, the rear portion of the insertion rod is provided with a screw matched with the screw hole in the front end face of the push rod and connected with the screw hole in the front end face of the push rod, the length of the insertion rod in front of the baffle is matched with the depth of the through hole in the rear portion of the slag stopping plug, and the diameter of the insertion rod is smaller than that of the through hole in the rear portion of the slag stopping plug. The slag stopping plug is simple in structure and convenient to operate, and can be quickly and firmly arranged at the tail end of the tapping hole on the basis of not damaging the slag stopping plug, so that the slag stopping effect is realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of for placing converter tapping hole slag stopper's installation pole, belong to converter tapping tool technical field. BACKGROUND

[0002] In converter steelmaking production, a large amount of molten steel slag is generated during smelting in the furnace. The chemical composition of steel slag is complex, especially the sulfur and phosphorus elements in the steel slag have a great impact on the quality of steel. When the molten steel is finished, the amount of steel slag flowing into the ladle with the molten steel must be strictly controlled. Therefore, the slag stopping process is usually used to prevent harmful elements such as sulfur and phosphorus from penetrating into the molten steel during the subsequent process, thereby affecting the quality of steel products. In order to improve product quality and achieve "clean steel" production, the slag stopping process is a very important link. At present, the slag stopping methods used by most converters during tapping can be divided into slag stopping plug, slag stopping ball, slag stopping rod and sliding plate stopping. The principle of slag stopping plug is that before tapping or after the tapping of the previous furnace is finished, the operator uses a special tool to install the slag stopping plug at the end of the tapping hole. After tapping starts, the slag stopping plug falls naturally under the impact of the molten steel in the furnace, and the steel flow enters the ladle. Before tapping, the installation of the slag stopping plug can effectively prevent the entry of steel slag into the ladle during the tapping and shaking process, thereby maximizing the reduction of "phosphorus return" of molten steel.

[0003] The current slag stopping plug installation device is only a long rod. During installation, it is easy to puncture the slag stopping plug when the force is too large, and it is difficult to install the slag stopping plug firmly when the force is too small. Due to the insecure installation of the slag stopping plug, repeated or multiple installations are required, which takes a long time and is not conducive to the production organization of the steel plant, and there is a certain risk. Therefore, it is necessary to improve the existing slag stopping plug installation rod. SUMMARY

[0004] The technical problem to be solved by the utility model is to provide a converter tapping hole slag stopping plug installation rod that is easy to use. This slag stopping plug installation rod can quickly and firmly install the slag stopping plug at the end of the tapping hole without damaging the slag stopping plug, realize the slag stopping function of the slag stopping plug, ensure the quality of molten steel, and avoid safety accidents.

[0005] The technical solution to solve the above technical problems is:

[0006] The application discloses a convenient converter tapping hole slag stopping plug adding rod which comprises a push rod, a baffle and an inserting rod.

[0007] The push rod is provided with a handle at the rear end, the front end of the inserting rod is in a semicircular arc shape, and opposite clamping grooves are formed in the middle portion of the inserting rod.

[0008] The application has the advantages that:

[0009] The front end of the push rod and the rear end of the inserting rod are connected through threads, the length of the inserting rod can be adjusted according to the depth of the through hole of the slag stopping plug, the inserting rod can not be broken in the inserting process due to too large force, and the slag stopping plug can not be firmly installed due to too small force.

[0010] The application has the advantages that: BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 is a structural schematic diagram of the application;

[0012] Figure 2 is a structural schematic diagram of the slag stopping plug;

[0013] Figure 3 is a use state schematic diagram of the application.

[0014] Marked in the drawing as follows: push rod 1, baffle 2, inserting rod 3, screw hole 4, screw rod 5, handle 6, clamping groove 7, slag stopping plug 8, through hole 9, converter body 10 and tapping hole 11. DETAILED DESCRIPTION

[0015] The utility model discloses a push rod 1, baffle 2, plug rod 3 are composed.

[0016] Figure 1 Show, push rod 1 is round steel pipe, the effect of push rod 1 is to push into the slag baffle 8 into the converter body 10 outlet 11.Push rod 1 rear end is equipped with handle 6, and push rod 1 is convenient for operator to grasp, and the center of push rod 1 front end surface has screw hole 4 along the length direction of push rod 1, and is used to install plug rod 3.

[0017] Figure 1 Show, baffle 2 is flat plate, and the area of baffle 2 is greater than the area of outlet 11, and the front end of push rod 1 is connected with the back plate of baffle 2 vertically, and the plate surface of baffle 2 has the round hole corresponding with the front end screw hole 4 of push rod 1, and plug rod 3 is connected with the front end screw hole 4 of push rod 1 through the round hole of baffle 2.Baffle 2 not only plays the role of positioning and sending plug rod 3, but also can increase the acting area to slag baffle 8, so as to be more conducive to tightly inserting slag baffle 8 outside outlet 11.

[0018] Figure 1 Show, plug rod 3 is round steel rod, and the front end of plug rod 3 is semicircular arc, and the rear portion of plug rod 3 has screw rod 5 matched with the screw hole 4 of push rod 1 front end surface, and the screw rod 5 of the rear portion of plug rod 3 is connected with the screw hole 4 of push rod 1 front end surface, and the length of plug rod 3 in front of baffle 2 is matched with the depth of through hole 9 of the rear portion of slag baffle 8, and the diameter of plug rod 3 is less than the diameter of through hole 9 of the rear portion of slag baffle 8, to be inserted into the through hole 9 of the rear portion of slag baffle 8.

[0019] Figure 1 Show, the middle portion of plug rod 3 has opposite clamping slots 7 on both sides respectively, and the bottom surface of the two clamping slots 7 is parallel.The effect of clamping slot 7 is that the operator can use spanner to be clamped on the clamping slot 7 on both sides of plug rod 3 to rotate plug rod 3, to adjust the depth of plug rod 3 inserted into the front end screw hole 4 of push rod 1, and then adjust the length of plug rod 3 in front of baffle 2, to adapt to the depth of through hole 9 of different slag baffle 8.

[0020] Figure 2 、 3 Show, in the utility model for, the operator selects the slag baffle 8 of different sizes according to the service life of outlet, and the length of plug rod 3 is slightly smaller than the depth of through hole 9 by using spanner to clamp the clamping slot 7 on both sides of plug rod 3 according to the different depth size of through hole 9 of slag baffle 8.Adjusting the length of plug rod 3, then using push rod 1 to insert plug rod 3 into the through hole 9 of slag baffle 8, to ensure that baffle 2 is tightly attached to the surface of slag baffle 8, then tightly grips the handle 6 of push rod 1 and forces the slag baffle 8 into outlet 11, on the basis of not damaging slag baffle 8, quickly and firmly installs it to the end of outlet 11, realizes the slag blocking function of slag baffle 9.

[0021] One embodiment of the utility model is as follows:

[0022] The push rod 1 is a round steel pipe with a diameter of 28 mm and a length of 3000 mm, and the screw hole 4 has a diameter of 25 mm and a length of 50 mm;

[0023] The diameter of the baffle 2 is 200 mm, and the thickness is 5 mm.

[0024] The diameter of the plug rod 3 is 20 mm, the length is 250 mm, the length of the screw rod 5 is 50 mm, and the length of the clamping groove 7 is 30 mm.

Claims

1. A convenient-to-use slag-blocking plug mounting rod for converter tapholes, characterized in that: It includes push rod (1), baffle (2), plug rod (3), push rod (1) is round steel pipe, baffle (2) is flat plate, the area of baffle (2) is greater than the area of taphole (11), the front end of push rod (1) is perpendicular to the back plate surface of baffle (2) and is welded, the center of the front end surface of push rod (1) has screw hole (4) along the length direction of push rod (1), the plate surface of baffle (2) has round hole corresponding to the front end screw hole (4) of push rod (1), plug rod (3) is round steel rod, the rear part of plug rod (3) has screw rod (5) matched with the screw hole (4) of the front end surface of push rod (1), the screw rod (5) of the rear part of plug rod (3) is connected with the screw hole (4) of the front end surface of push rod (1), the length of plug rod (3) in front of baffle (2) matches the depth of through hole (9) in the rear part of slag stopper (8), the diameter of plug rod (3) is less than the diameter of through hole (9) in the rear part of slag stopper (8).

2. The convenient-to-use stopper rod for the converter taphole according to claim 1, characterized in that: The rear end of push rod (1) is provided with handle (6), the front end of plug rod (3) is semicircular arc, the middle part of plug rod (3) has opposite clamping grooves (7) on both sides, and the bottom surfaces of two clamping grooves (7) are parallel.

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