CN110303123B

CN110303123B - External device for large package drainage agent

Info

Publication number: CN110303123B
Application number: CN201910711761.0A
Authority: CN
Inventors: 王兴华; 崔继滨; 郭宪海; 王灵福
Original assignee: Jianlong Beiman Special Steel Co Ltd
Current assignee: Jianlong Beiman Special Steel Co Ltd
Priority date: 2019-08-02
Filing date: 2019-08-02
Publication date: 2021-08-13
Anticipated expiration: 2039-08-02
Also published as: CN110303123A

Abstract

The invention relates to an external device for a bale of drainage agent, which belongs to the technical field of ferrous metallurgy continuous casting and comprises: slag pan, handle and drainage device are installed to the slag pan lateral wall, and drainage device includes: clamping device and drainage paper, slope on the slag pan lateral wall and be provided with a pair of clamping device, clamping device presss from both sides the drainage paper both ends tightly, and the slag pan top is arranged in to drainage paper lower extreme, and the drainage agent passes through the drainage paper and sends to in the slag pan. According to the invention, the drainage paper is clamped by the clamping device, when the drainage agent falls down, the drainage agent flows into the slag receiving disc along the inclination of the drainage paper, and when molten steel falls down, the yellow board paper can be punctured and enter the tundish, so that the problem that the tundish is polluted by the drainage agent is solved. The invention can adapt to the drainage agents with different flow rates by adjusting the number of the clamping drainage paper, and the drainage agent can be completely taken out by the arrangement, thereby preventing the secondary oxidation of molten steel and reducing the occurrence of safety accidents.

Description

External device for large package drainage agent

Technical Field

The invention relates to the technical field of ferrous metallurgy continuous casting, in particular to an external device for a ladle drainage agent.

Background

In the special steel industry, when a ladle is cast in each continuous casting process, a ladle drainage agent naturally flows into a continuous casting tundish, the quality of molten steel is seriously polluted, and particularly, steel types with strict inclusion requirements, such as: bearing steel, automotive steel, and the like. If the water is drained outside the middle ladle and then poured into the middle ladle, or the long water gap of the big ladle is disassembled, the drainage agent is connected and then the long water gap of the big ladle is sleeved for pouring, so that the secondary oxidation of the molten steel is avoided, the purity of the molten steel is seriously influenced, and the potential safety hazard that people are injured by splashing of the molten steel exists.

The prior solution is that the existing solution is that,

firstly, when a continuous casting bale is opened for pouring, a bale sliding plate is opened without installing a long water gap, when a drainage agent flows out to be red, the bale sliding plate is closed, the bale long water gap is installed, and the bale sliding plate is pulled open for normal pouring;

secondly, when the continuous casting ladle is cast, the long water gap is installed firstly, the drainage agent is connected with a tool below the long water gap, when the 'red drainage agent' enters the tool, the tool is removed immediately, the situation that molten steel falls down to contact with the tool is avoided, and the mode has the defects that the drainage agent cannot be completely connected out of the ladle, and if the tool is not withdrawn in time, safety accidents such as splashing and the like easily occur.

Thirdly, when the continuous casting ladle is cast, the long water gap is firstly installed, the opening tool is used for adding the air pipe to connect the drainage agent, the drainage agent enters the tool and is directly blown away by the air pipe, when the 'red drainage agent' is seen to fall off, the tool is immediately withdrawn, and the situation that the molten steel falls off to contact with the tool is avoided.

Disclosure of Invention

The invention provides an external device of a ladle drainage agent, aiming at solving the technical problem that when the ladle is cast in the ferrous metallurgy continuous casting process, the ladle drainage agent can naturally flow into a continuous casting tundish to seriously pollute the quality of molten steel.

An external device for a bale drainage agent, comprising: a slag pan, a handle and a drainage device,

a handle and a drainage device are arranged on the side wall of the slag tray;

the drainage device includes: clamping device and drainage paper, slope on a slag pan lateral wall is provided with a pair of clamping device, and clamping device presss from both sides the drainage paper both ends tightly, and the slag pan top is arranged in to drainage paper lower extreme, and the drainage agent passes through the drainage paper and sends to in the slag pan.

Further, the clamping device includes: the slag plate comprises a bottom plate, a clamping bolt and a clamping spring, wherein the bottom plate is obliquely arranged on one side wall of the slag plate, two threaded holes are formed in the bottom plate, two through holes are formed in the clamping plate, the clamping bolt penetrates through the through holes in the clamping plate to be matched with the threaded holes in the bottom plate for use, the clamping bolt is sleeved with the clamping spring, and the clamping spring is located above the clamping plate.

Further, a support is arranged between the side walls of the slag tray on the lower end surface of the bottom plate.

Furthermore, all be provided with the recess on the face that bottom plate and splint contacted, be provided with the rubber antislip strip in the recess, the thickness of rubber antislip strip is greater than the degree of depth of recess.

Further, the angle between the bottom plate and the bottom surface of the slag tray is thirty degrees.

Further, an arc-shaped section used for avoiding the tundish opening edge is arranged on the handle, and the opening direction of the arc-shaped section is opposite to that of the slag pan.

Further, the drainage paper is specifically yellow board paper.

The invention has the beneficial effects that:

according to the invention, the drainage paper is clamped by the clamping device, when the drainage agent falls down, the drainage agent flows into the slag receiving disc along the inclination of the drainage paper, and when molten steel falls down, the yellow board paper can be punctured and enter the tundish, so that the problem that the tundish is polluted by the drainage agent is solved.

The invention can adapt to the drainage agents with different flow rates by adjusting the number or thickness of the clamping drainage paper, and the drainage agent can be completely taken out by the arrangement, thereby preventing the secondary oxidation of molten steel and reducing the occurrence of safety accidents.

Drawings

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

FIG. 2 is a top view of the present invention;

FIG. 3 is a schematic view of the structure of the clamping device of the present invention;

FIG. 4 is a schematic view of the middle section of the present invention;

in the figure, a slag pan 1, a handle 2, a bottom plate 311, a clamping plate 312, a clamping bolt 313, a clamping spring 314, a drainage device 3, a clamping device 31, a bottom plate 311, a clamping plate 312, a clamping bolt 313, a clamping spring 314 and drainage paper 32.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings.

The first embodiment is as follows: referring to fig. 1 and 2, an external device for a bale drainage agent comprises: the slag pan comprises a slag pan 1, a handle 2 and a drainage device 3, wherein the handle 2 and the drainage device 3 are installed on the side wall of the slag pan 1;

the drainage device 3 includes: clamping device 31 and drainage paper 32, just the slope is provided with a pair of clamping device 31 on the lateral wall of slag pan 1, and clamping device 31 presss from both sides tight with drainage paper 32 both ends, and slag pan 1 top is arranged in to drainage paper 32 lower extreme, and the drainage agent passes through drainage paper 32 and send to in the slag pan 1, so sets up, and clamping device 31 carries out the centre gripping with drainage paper 32, and the drainage agent passes through drainage paper 32 and flows into in the slag pan 1, and the molten steel then passes in drainage paper 32 inflow package.

Example two: on the basis of the first embodiment, referring to fig. 3, the clamping device 31 includes: the drainage paper feeding device comprises a bottom plate 311, a clamping plate 312, a clamping bolt 313 and a clamping spring 314, wherein the bottom plate 311 is obliquely arranged on one side wall of the slag tray 1 in a welding mode, two threaded holes are processed in the bottom plate 311, two through holes are formed in the clamping plate 312, the clamping bolt 313 penetrates through the through hole in the clamping plate 312 to be matched with the threaded hole in the bottom plate 311 for use, the clamping spring 314 is sleeved on the clamping bolt 313, the clamping spring 314 is located above the clamping plate 312, and the clamping spring 314 is arranged between the clamping bolt 313 and the clamping plate 312 and clamps the drainage paper 32 through the elasticity of the clamping spring 314.

Example three: in the second embodiment, referring to fig. 3, a bracket 315 is disposed between the sidewalls of the slag pan 1 on the lower end surface of the bottom plate 311, so as to prevent the bottom plate 311 from deforming.

Example four: on the basis of the second embodiment, referring to fig. 3, grooves are formed in the surfaces of the bottom plate 311 and the clamping plate 312, which are in contact with each other, rubber anti-slip strips 316 are arranged in the grooves, and the thickness of the rubber anti-slip strips 316 is greater than the depth of the grooves, so that the drainage paper 32 is prevented from being separated from the clamping device 31 under the impact of the drainage agent.

Example five: on the basis of the second embodiment, the angle between the bottom plate 311 and the bottom surface of the slag pan 1 is thirty degrees as described with reference to fig. 3.

Example six: the first embodiment is explained by combining with the attached figure 4, the handle 2 is provided with an arc-shaped section 21 for avoiding the opening edge of the tundish, the opening direction of the arc-shaped section 21 is opposite to the opening direction of the slag pan 1, and the arc-shaped section 21 is lapped at the opening edge of the tundish when the position of the ladle long nozzle is lower than that of the tundish opening edge, so that the operation of workers is facilitated.

Example seven: on the basis of the first embodiment, referring to fig. 2, the drainage paper 32 is specifically yellow board paper.

The working process is as follows:

the staff selects the number of the drainage paper 32 according to the amount of the drainage agent, firstly lifts the clamping plate 312, then puts the two ends of the drainage paper 32 between the bottom plate 311 and the clamping plate 312, clamps the drainage paper 32 through the elasticity of the clamping spring 314, and can adjust the clamping degree by screwing the clamping bolt 313, after the installation is completed, places the slag pan 1 under the ladle nozzle, the middle end 21 is lapped at the tundish opening edge, specifically, the drainage paper 32 is just opposite to the ladle nozzle, the drainage agent is sent into the slag pan 1 through the drainage paper 32, and the subsequent discharged molten steel passes through the drainage paper 32 and enters the tundish.

Claims

1. An external device for a bale drainage agent, comprising: a slag pan (1), a handle (2) and a drainage device (3), which is characterized in that,

a handle (2) and a drainage device (3) are arranged on the side wall of the slag pan (1);

the drainage device (3) comprises: the slag pan comprises a clamping device (31) and drainage paper (32), wherein a pair of clamping devices (31) are obliquely arranged on one side wall of the slag pan (1), the clamping devices (31) clamp two ends of the drainage paper (32), the lower end of the drainage paper (32) is arranged above the slag pan (1), and a drainage agent is conveyed into the slag pan (1) through the drainage paper (32);

an arc-shaped section (21) used for avoiding the edge of the tundish opening is arranged on the handle (2), and the opening direction of the arc-shaped section (21) is opposite to that of the slag pan (1);

the clamping device (31) comprises: bottom plate (311), splint (312), clamping bolt (313) and clamping spring (314), bottom plate (311) slope sets up on slag pan (1) lateral wall, is provided with two screw holes on bottom plate (311), is provided with two through-holes on splint (312), and clamping bolt (313) pass through the through-hole on splint (312) and use with the screw hole cooperation on bottom plate (311), and the cover is equipped with clamping spring (314) on clamping bolt (313), and clamping spring (314) are located splint (312) top.

2. The external device for the bale drainage agent according to claim 1, wherein a bracket (315) is arranged between the side walls of the slag pan (1) on the lower end surface of the bottom plate (311).

3. The external device for the bale drainage agent according to claim 1, wherein the contact surfaces of the bottom plate (311) and the clamping plate (312) are provided with grooves, rubber anti-slip strips (316) are arranged in the grooves, and the thickness of the rubber anti-slip strips (316) is larger than the depth of the grooves.

4. The external device for the bale drainage agent according to claim 1, wherein the angle formed by the bottom plate (311) and the bottom surface of the slag pan (1) is thirty degrees.

5. A bale drainage agent external device according to claim 1, wherein the drainage paper (32) is yellow paper.