CN213002627U

CN213002627U - Water gap mould for steel ladle and tundish

Info

Publication number: CN213002627U
Application number: CN202021067766.9U
Authority: CN
Inventors: 刘晓利
Original assignee: Shanxi Jianlong Industrial Co Ltd
Current assignee: Shanxi Jianlong Industrial Co Ltd
Priority date: 2020-06-11
Filing date: 2020-06-11
Publication date: 2021-04-20
Anticipated expiration: 2030-06-11

Abstract

The utility model discloses a ladle, middle package water inlet department mould, including mould main part and ladle main part, the inside in the ladle main part is installed to the mould main part, the inside of mould main part is provided with rings, the upper surface mounting of mould main part has middle lid, the lateral wall top fixedly connected with collar of mould main part, the mounting groove has been seted up to the inside of collar, the inside wall of mounting groove evenly rotates and is connected with a plurality of inserted bars, the inside at the mounting groove is installed to middle lid, be provided with the torsional spring between inserted bar and the collar, the inside of middle lid seted up with inserted bar assorted slot, the inside wall top fixedly connected with of mould main part inserts a section of thick bamboo, it has the horizontal pole to peg graft in the inside of an section of thick bamboo, the package end position of ladle main part is provided with the ladle mouth of a. The utility model discloses be difficult to the aversion, can draw down the molten steel smoothly after adding the drainage sand, it is safe high-efficient, circulated use.

Description

Water gap mould for steel ladle and tundish

Technical Field

The utility model relates to a mouth of a river technical field especially relates to a ladle, middle package mouth of a river department mould.

Background

In the actual production organization principle of steel works, three ladles are taken as keys, the three ladles comprise an iron ladle, a steel ladle and a tundish, wherein the bottom of the iron ladle is a dead bottom, the steel ladle and the tundish are provided with water gap devices, water gaps are arranged at the positions of the ladle bottoms, molten steel with the temperature of more than 1500 ℃ flows through the water gaps to enter a next container under the action of gravity, the steel ladle and the tundish have certain thickness of refractory materials above the water gaps to resist the corrosion of the molten steel and protect the water gaps due to the characteristics of the steel ladle and the tundish, the water gaps are in a cone shape or a circular truncated cone shape and a three-dimensional space is also arranged above the water gaps and used for placing heat conduction sand so as to conduct the molten steel to the next container, the shape and the smoothness of the three-dimensional space above the water gaps determine whether the conduction sand can normally conduct the molten steel out, the original installation mode is that the steel is plugged by a woven bag in the space above the water gaps and, and (4) building, namely preheating and shaping the tundish ladle after the construction, taking out the woven bag before use, wherein the surface of the three-dimensional space for taking out the woven bag is rough and irregular, and the smooth surface is difficult to clean and the displacement phenomenon often occurs.

After the drainage sand is placed, the self-flow rate is very low, the molten steel cannot be led out in a normal production mode, the remedy method is to use oxygen to carry out ignition drainage again, after the oxygen drainage, the service life of a water gap is greatly reduced (the original 8-hour tundish water gap can be used for 4-5 hours after the drainage, and the time of the ladle water gap is changed from 15 times to 8 times), the pulling speed fluctuation is large in the production organization process, the production accident is easily caused, the product quality is also influenced, through accident analysis and statistics, the steel leakage accident is 6 times per month because the tundish water gap is burnt with oxygen, the steel ladle is 3 times per year because the sliding plate accident is burnt with oxygen, and the steel type is judged about 720 tons per year because the ladle water gap with oxygen is burnt with the rising of secondary oxidized inclusion.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a water gap mold of a steel ladle and a tundish.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a ladle, middle package water inlet department mould, includes mould main part and ladle main part, the inside at the ladle main part is installed to the mould main part, the inside of mould main part is provided with rings, the upper surface mounting of mould main part has middle lid, the lateral wall top fixedly connected with collar of mould main part, the mounting groove has been seted up to the inside of collar, the inside wall of mounting groove evenly rotates and is connected with a plurality of inserted bars, the inside at the mounting groove is installed to middle lid, be provided with the torsional spring between inserted bar and the collar, the inside of middle lid seted up with inserted bar assorted slot, the inside wall top fixedly connected with of mould main part inserts a section of thick bamboo, it has the horizontal pole to insert the inside grafting of a section of thick bamboo.

Preferably, a ladle nozzle is arranged at the bottom of the ladle body, a ladle mold placing opening is formed in the bottom of the inner portion of the ladle body, and the mold body is installed inside the ladle body through the ladle mold placing opening.

Preferably, the lower part of the mold main body is a solid structure, the upper part of the mold main body is a hollow structure, the angle of the mold main body is the same as that of the ladle nozzle, and the side wall of the mold main body is wrapped with the bulk refractory material.

Preferably, the upper surface of the middle cover body is fixedly connected with an upper top plate, the lower surface of the middle cover body is fixedly connected with a lower bottom plate, and the side walls of the lower bottom plate and the upper top plate are fixedly connected with rubber blocks.

Preferably, the ladle nozzle is in a cone shape, hot-draining sand is placed above the ladle nozzle, a ladle brick cup is arranged between the side wall of the ladle nozzle and the ladle main body, and the ladle brick cup is made of clay, high-alumina or unfired high-alumina refractory bricks.

Preferably, the one end fixedly connected with buffer block of horizontal pole, the one end of buffer block is pegged graft in the inside of inserting a section of thick bamboo and with the inside wall contact of inserting a section of thick bamboo, the one end and the rings fixed connection of horizontal pole.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses in, the bottom is solid upper portion to the design of mould main part has the hollow material object of part, and has lid and lifting hook roof beam that matches with it, and lifting hook roof beam can 360 rotations, and the ladle mouth of a river and the surface in middle package mouth of a river top space that use novel mould are smooth, and the shape rule to be difficult to shift, can draw down the molten steel smoothly after adding the drainage sand, safe high-efficient.

2. The utility model discloses in, need to install the metal lifting hook roof beam and wait to pull out the mould after utilizing the lifting hook roof beam to hang out the mould main part, the lifting hook roof beam hides in mould main part the inside and top when using and adds the lid, takes out the lid after finishing preheating the design and could take out the mould main part with the lifting hook roof beam, recycles.

Drawings

Fig. 1 is a schematic structural view of a mold main body of a mold at a water gap of a steel ladle and a tundish, which is provided by the utility model;

fig. 2 is a schematic structural view of a ladle body of a ladle and a tundish water gap mold provided by the utility model;

FIG. 3 is a front view of a middle cover of a mold at a water gap of a ladle and a tundish according to the present invention;

fig. 4 is a partial top view of a mold at a water gap of a ladle and a tundish, which is provided by the utility model;

fig. 5 is an enlarged view of the position a of the mold at the water gap of the ladle and the tundish provided by the utility model.

In the figure: the steel ladle pouring device comprises a steel ladle main body 1, a steel ladle nozzle 2, a steel ladle brick cup 3, a steel ladle mould placing opening 4, a mould main body 5, a mounting ring 6, a hanging ring 7, a middle cover body 8, a rubber block 9, an upper top plate 10, a lower bottom plate 11, a mounting groove 12, a slot 13, an inserted rod 14, a torsion spring 15, an inserted cylinder 16, a cross rod 17 and a buffer block 18.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

A ladle and tundish water port mold comprises a mold main body 5 and a ladle main body 1, wherein the mold main body 5 is arranged inside the ladle main body 1, a ladle water port 2 is arranged at the bottom of the ladle main body 1, a ladle mold placing port 4 is arranged at the bottom of the ladle main body 1, the mold main body 5 is arranged inside the ladle main body 1 through the ladle mold placing port 4, a hanging ring 7 is arranged inside the mold main body 5, an intermediate cover body 8 is arranged on the upper surface of the mold main body 5, a mounting ring 6 is fixedly connected at the top of the side wall of the mold main body 5, a mounting groove 12 is arranged inside the mounting ring 6, a plurality of insertion rods 14 are uniformly and rotatably connected on the inner side wall of the mounting groove 12, the intermediate cover body 8 is arranged inside the mounting groove 12, a torsion spring 15 is arranged between the insertion rods 14 and the mounting ring 6, and slots 13 matched with the, the lower part of the mould main body 5 is a solid and the upper part is a hollow object structure, the angle of the mould main body 5 is the same as that of the ladle nozzle 2, the side wall of the mould main body 5 is wrapped with bulk refractory materials, the upper surface of the middle cover body 8 is fixedly connected with an upper top plate 10, the lower surface of the middle cover body 8 is fixedly connected with a lower bottom plate 11, and the side walls of the lower bottom plate 11 and the upper top plate 10 are both fixedly connected with rubber blocks 9, as shown in the attached figures 1, 2, 3 and 4; the middle cover body 8 is placed in the mounting groove 12 formed in the mounting ring 6, the middle cover body 8 is rotated, the stretching torsion spring 15 drives the insertion rod 14 to reset and be inserted into the corresponding slot 13, the middle cover body 8 and the mounting ring 6 are firmly connected, and the middle cover body 8 is convenient to mount and dismount and convenient to use.

An insert barrel 16 is fixedly connected to the top of the inner side wall of the die main body 5, a cross rod 17 is inserted into the insert barrel 16, the ladle nozzle 2 is in a cone shape, heat-conducting sand is placed above the ladle nozzle 2, a ladle brick cup 3 is arranged between the side wall of the ladle nozzle 2 and the ladle main body 1, the ladle brick cup 3 is made of clay, high-alumina or unburned high-alumina refractory bricks, one end of the cross rod 17 is fixedly connected with a buffer block 18, one end of the buffer block 18 is inserted into the insert barrel 16 and is in contact with the inner side wall of the insert barrel 16, and one end of the cross rod 17 is fixedly connected with a hanging ring 7, which is shown in the attached figures 1, 2 and 5; buffer block 18 extrudees, peg graft the inside of inserting a section of thick bamboo 16 with the one end of horizontal pole 17, thereby install rings 7 in the inside of mould main part 5, and rings 7 can 360 degrees rotations use, and reasonable in design uses the ladle of novel mould, the surface in middle package mouth of a river top space is smooth, and the shape is regular, and be difficult to the aversion, can draw down the molten steel smoothly after adding the drainage sand, after using the mould, the ladle from the flow rate improves to 99.5% by former 98.5%, the package from the flow rate improves to 99% by 95.5%, the slide accident of wearing that causes because of the ladle oxygen drainage of burning does not appear, cause the rising of molten steel secondary oxidation inclusion to change and judge the steel grade and reduce 500 tons/year through oxygen burning.

The working principle is as follows: according to the concrete shape of the ladle nozzle 2, round steel is processed into a die main body 5 with a small lower part and a large upper part, the angle of the die main body 5 is the same as that of the ladle nozzle 2, the die main body 5 is fixedly placed above the ladle nozzle 2, the periphery of the die main body 5 is wrapped by scattered refractory materials, the die main body 5 is compacted for multiple times through a vibrating rod to reach a certain thickness, an integral packing tire is placed above the die main body 5, then the refractory materials are placed between the packing tire and the ladle main body 1 and a tundish again and are baked and shaped after being compacted and completely shaped, and then the tire is pulled out, because the die needs to have certain weight to prevent moving, in addition, a metal hanging ring 7 is arranged on the die main body 5, the die main body 5 is hung out through the hanging ring 7 after the tire is pulled out, the hanging ring 7 is hidden in the die main body 5 when in use, a middle cover body 8 is added at the top, the middle cover body 8 is taken out, the mould main body 5 is designed to be a solid object with a hollow part at the upper part and is provided with a middle cover body 8 and a hanging ring 7 which are matched with the mould main body, the hanging ring 7 can rotate for 360 degrees, the surface of the space above the ladle nozzle 2 using the novel mould is smooth and has a regular shape, the novel mould is not easy to shift, molten steel can be smoothly led down after the drainage sand is added, after the mould is used, the self-flow rate of the ladle is improved to 99.5 percent from 98.5 percent, the self-flow rate of the tundish is improved to 99 percent from 95.5 percent, the sliding plate penetrating accident caused by the oxygen-burning drainage of the ladle does not occur, and the secondary oxidized inclusion of the molten steel is increased to reduce the judging steel grade by 500 tons/year due to.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A die for a water opening of a steel ladle and a tundish comprises a die main body (5) and a steel ladle main body (1), and is characterized in that the die main body (5) is installed inside the steel ladle main body (1), a hanging ring (7) is arranged inside the die main body (5), a middle cover body (8) is installed on the upper surface of the die main body (5), a mounting ring (6) is fixedly connected to the top of the side wall of the die main body (5), a mounting groove (12) is formed inside the mounting ring (6), a plurality of inserting rods (14) are uniformly and rotatably connected to the inner side wall of the mounting groove (12), the middle cover body (8) is installed inside the mounting groove (12), a torsion spring (15) is arranged between the inserting rods (14) and the mounting ring (6), and inserting grooves (13) matched with the inserting rods (14) are formed inside the middle cover body (8), the top of the inner side wall of the die main body (5) is fixedly connected with an inserting cylinder (16), and a cross rod (17) is inserted into the inserting cylinder (16).

2. The ladle and tundish nozzle mould according to claim 1, wherein the ladle nozzle (2) is arranged at the bottom of the ladle body (1), the ladle mould placing port (4) is arranged at the bottom of the inner part of the ladle body (1), and the mould body (5) is arranged in the ladle body (1) through the ladle mould placing port (4).

3. The ladle and tundish nozzle mold according to claim 1, wherein the mold body (5) is a solid structure with a solid lower part and a hollow upper part, the angle of the mold body (5) is the same as that of the ladle nozzle (2), and the side wall of the mold body (5) is wrapped with bulk refractory material.

4. The ladle and tundish nozzle mold according to claim 1, wherein an upper top plate (10) is fixedly connected to the upper surface of the middle cover (8), a lower bottom plate (11) is fixedly connected to the lower surface of the middle cover (8), and rubber blocks (9) are fixedly connected to the side walls of the lower bottom plate (11) and the upper top plate (10).

5. The ladle and tundish nozzle mold according to claim 2, wherein the ladle nozzle (2) is cone-shaped, heat-conducting sand is placed above the ladle nozzle (2), a ladle brick cup (3) is arranged between the side wall of the ladle nozzle (2) and the ladle body (1), and the ladle brick cup (3) is made of clay, high-alumina or unfired high-alumina refractory brick.

6. The ladle and tundish nozzle die according to claim 1, wherein one end of the cross rod (17) is fixedly connected with a buffer block (18), one end of the buffer block (18) is inserted into the insertion tube (16) and contacts with the inner side wall of the insertion tube (16), and one end of the cross rod (17) is fixedly connected with the hanging ring (7).