Simply-formed submersed nozzle capable of being used by multiple furnaces

Abstract

The utility model discloses a simply formed submersed nozzle capable of being used by multiple furnaces, which comprises a funnel pipe, a pipe orifice plate, a positioning plate, a pushing plate and a shoveling piece, the positioning plate is used for limiting the position of the pipe orifice plate on a sliding plate, the pushing plate is used for pushing the adjacent pipe orifice plate, and the shoveling piece is used for shoveling sundries at the top end of the sliding plate. The design of the pipe orifice plate, the positioning plate, the pushing plate and the shoveling piece is utilized, the distance between the sliding plate and the pipe orifice plate and the distance between the sliding plate and the positioning plate can be matched through the design of the pipe orifice plate and the positioning plate, and therefore the bottom end of the pipe orifice plate and the top end of the sliding plate are attached to each other and cannot be warped, and meanwhile the shoveling piece can be conveniently shoveled along with movement of the pipe orifice plate. The shoveling groove of the shoveling block can scrape sundries at the top end of the sliding plate, the scraped sundries can continuously roll forwards in the moving direction of the pipe orifice plate along the slope section, the steering section and the discharging section, horizontal placement of the pipe orifice plate is not affected, parallelism between the pipe orifice plate and the sliding plate is guaranteed, and the situation that molten steel penetrates through the pipe orifice plate is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of refractory materials for continuous casting, particularly to a simple and easy to form submerged entry nozzle capable of being used in multiple furnaces. BACKGROUND

[0002] In a continuous casting and steelmaking process, molten steel from a ladle is poured into a larger vessel known as a tundish, which has one or more outlets through which the molten steel flows into one or more corresponding moulds in which the molten steel cools and solidifies to form a continuous cast solid length of metal. A submerged entry nozzle is located between the tundish and each mould and directs the molten steel from the tundish through the casting nozzle into the mould. The submerged entry nozzle is in the form of an elongate pipe and generally has the appearance of a rigid pipe or tube.

[0003] In the installation process of the submerged entry nozzle, the push type is used for rapid installation, and the pipe opening of the submerged entry nozzle is put into the quick-change device, but in the long-term use process, foreign matters exist on the top of the slide plate part of the quick-change device, so that the pipe opening is not parallel during installation, and the molten steel is penetrated. SUMMARY

[0004] In order to solve the above problems, the purpose of the utility model is to provide a simple and easy to form submerged entry nozzle capable of being used in multiple furnaces, which has reasonable structure, is convenient to install and can prevent molten steel leakage.

[0005] According to one aspect of the utility model, a simple and easy to form submerged entry nozzle capable of being used in multiple furnaces is provided, which comprises a funnel pipe, a vertical pipe arranged at the bottom end of the funnel pipe, and the like.

[0006] A pipe opening plate is arranged at the top end of the funnel pipe and used for quick installation of the funnel pipe.

[0007] A positioning plate is arranged on the outer wall of the funnel pipe and used for limiting the position of the pipe opening plate on the slide plate.

[0008] A pushing plate is arranged at one end of the pipe opening plate and used for pushing the adjacent pipe opening plate.

[0009] A scraping member is arranged at one end of the pipe opening plate and used for scraping foreign matters on the top end of the slide plate.

[0010] In some embodiments, the bottom end of the funnel pipe is connected with the top end of the vertical pipe in a through manner, the top end of the funnel pipe is fixedly connected with the bottom end of the pipe opening plate, and a circular hole for communicating with the funnel pipe is arranged at the top end of the pipe opening plate.

[0011] In some embodiments, the positioning plate is arranged on the outer wall of the funnel pipe, and the distance between the positioning plate and the pipe opening plate on one side corresponds to the thickness of the slide plate.

[0012] In some embodiments, one end of the pushing plate is fixedly connected with one end of the pipe mouth plate, and the width of the pushing plate is 1.2-1.5 times the width of the scraping member.

[0013] In some embodiments, the width of the pushing plate is 1.3 times the width of the scraping member.

[0014] In some embodiments, the scraping member comprises a scraping block, one end of the scraping block is fixedly connected with one end of the pipe mouth plate, and a scraping groove is formed in the end of the scraping block away from the pipe mouth plate.

[0015] In some embodiments, the scraping groove comprises a bevel section, a turning section and a discharging section, the bevel section is used for guiding the scraped material, the turning section is used for turning the scraped material, and the discharging section is used for guiding and discharging the scraped material.

[0016] The utility model has the beneficial effects of reasonable structure, convenient cooperation installation and prevention of leakage of molten steel. The utility model discloses a pipe mouth plate, a positioning plate, a pushing plate and a scraping member, the distance between the sliding plate and the pipe mouth plate and the positioning plate can be adapted through the design of the pipe mouth plate and the positioning plate, so that the bottom end of the pipe mouth plate and the top end of the sliding plate are mutually attached, and the pipe mouth plate cannot be warped, and at the same time, the scraping groove of the scraping block can scrape the sundries on the top end of the sliding plate, the scraped sundries can be continuously rolled forward along the bevel section, the turning section and the discharging section to the direction of movement of the pipe mouth plate, so that the horizontal placement of the pipe mouth plate is not affected, the parallelism between the pipe mouth plate and the sliding plate is ensured, and the situation of leakage of molten steel due to burning of the pipe mouth plate is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 It is a whole three-dimensional structure schematic diagram of the utility model.

[0018] Fig. 2 It is a front view cross-sectional structure schematic diagram of the utility model.

[0019] Fig. 3 It is a pushing plate and a scraping block three-dimensional structure schematic diagram of the utility model.

[0020] In the drawing: 1, funnel pipe; 2, vertical pipe; 3, pipe mouth plate; 4, positioning plate; 5, pushing plate; 6, scraping member; 61, scraping block; 62, bevel section; 63, turning section; 64, discharging section. DETAILED DESCRIPTION

[0021] The utility model will be explained in detail in combination with each embodiment shown in the drawing, but it should be explained that these embodiments are not the limitation of the utility model, and the equivalent transformation or replacement of function, method or structure made by the ordinary skill in the art according to these embodiments all belong to the protection scope of the utility model.

[0022] In the description of the utility model, it needs to explain that, unless otherwise provided and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be mechanical connection or electrical connection, it also can be the communication inside two elements, it can be direct connection, also can be indirectly connected through intermediate medium, for the ordinary skill in the art, the specific meaning of the term can be understood according to specific circumstances.

[0023] As Figs. 1-3 Indicated, the utility model discloses a simple forming can multi-furnace of using of immersion type nozzle, including funnel pipe 1, the bottom end of funnel pipe 1 is provided with vertical pipe 2, still including:

[0024] Pipe orifice plate 3, pipe orifice plate 3 is used for the quick installation of funnel pipe 1, and pipe orifice plate 3 is arranged at the top end of funnel pipe 1;

[0025] Positioning plate 4, positioning plate 4 is arranged on the outer wall of funnel pipe 1, and positioning plate 4 is used to limit the position of pipe orifice plate 3 on the slide plate;

[0026] Pushing plate 5, pushing plate 5 is used to push adjacent pipe orifice plate 3, and pushing plate 5 is arranged at one end of pipe orifice plate 3;

[0027] Shovel piece 6, shovel piece 6 is used to shovel the sundries on the top end of the slide plate, and shovel piece 6 is arranged at one end of pipe orifice plate 3.

[0028] Specifically, the bottom end of funnel pipe 1 is connected with the top end of vertical pipe 2 in penetration, the top end of funnel pipe 1 is fixedly connected with the bottom end of pipe orifice plate 3, and the top end of pipe orifice plate 3 is provided with a round hole for communicating with funnel pipe 1.

[0029] Further, funnel pipe 1, vertical pipe 2 and pipe orifice plate 3 constitute the existing simple type multi-furnace immersion type nozzle, a specific proportion of large particle zirconia raw material is used, the addition proportion of zirconia is improved, the carbon content in the formula system is appropriately reduced, the large particle raw material can improve the thermal shock stability of slag line, make up for the defects of the thermal shock performance decline caused by the reduction of carbon content, and the improvement of the zirconia content of slag line can obviously improve the overall erosion resistance of slag line, and the erosion resistance and thermal shock stability of the immersion type nozzle are adjusted by this mode.

[0030] Specifically, positioning plate 4 is sleeved on the outer wall of funnel pipe 1, and the distance between positioning plate 4 and the opposite side of pipe orifice plate 3 corresponds to the thickness of the slide plate.

[0031] Further, the top end of the positioning plate 4 is provided with a circular groove, the inner wall of the circular groove is welded and fixed with the outer wall of the funnel pipe 1, the distance between the side of the positioning plate 4 opposite to the pipe orifice plate 3 is the same as the thickness of the slide plate of the existing quick-change device, therefore, when the pipe orifice plate 3 is installed, even if there are sundries on the top end of the slide plate, when the pipe orifice plate 3 is moved, the sundries cannot lift the pipe orifice plate 3 under the extrusion of the top end of the positioning plate 4 and the bottom end of the slide plate, so that the parallel arrangement of the pipe orifice plate 3 and the slide plate is maintained.

[0032] Specifically, one end of the pushing plate 5 is fixedly connected with one end of the pipe orifice plate 3, the width of the pushing plate 5 is 1.3 times of the width of the removing piece 6, the removing piece 6 comprises a removing block 61, one end of the removing block 61 is fixedly connected with one end of the pipe orifice plate 3, the end of the removing block 61 away from the pipe orifice plate 3 is provided with a removing groove, the removing groove comprises a slope section 62, a turning section 63 and a discharging section 64, the slope section 62 is used for guiding the removed sundries, the turning section 63 is used for turning the removed sundries, and the discharging section 64 is used for guiding and discharging the removed sundries.

[0033] Further, the pushing plate 5 is wider than the removing piece 6, so that when the quick-change device is used to replace the nozzle, the pushing plate 5 pushes the pipe orifice plate 3 of the previous nozzle to displace the previous nozzle, and meanwhile, the pushing plate 5 does not affect the pushing and removing effect of the removing piece 6 on the sundries, so that a space is always maintained between the pipe orifice plate 3 of the previous nozzle and the removing piece 6 of the subsequent nozzle, the space can keep the sundries rolling, so that the removing groove is not filled with the sundries, the pushing plate 5 and the removing block 61 are welded with the pipe orifice plate 3, the pushing plate 5 is welded on the top end of the removing block 61, the slope section 62 is used for guiding the removed sundries into the removing groove, then the turning section 63 is used for turning the movement of the sundries, and finally the discharging section 64 is used for guiding the sundries to be discharged, so that the removed sundries are kept rolling, thereby pushing the sundries to roll forward, this mode can remove the sundries on the top end of the slide plate, maintain the parallel arrangement of the pipe orifice plate 3 and the slide plate, and greatly reduce the occurrence of the molten steel burning and the molten steel leakage.

[0034] The above only describes some embodiments of the present application, and it should be pointed out that, for ordinary skilled persons in the art, other deformations and improvements can be made without departing from the creative concept of the present application, and these all belong to the protection scope of the present application.

Claims

1. A simple forming immersion nozzle capable of being used in multiple furnaces, comprising a funnel tube (1), wherein a vertical tube (2) is provided at the bottom end of the funnel tube (1), characterized in that: Also includes: A nozzle plate (3), the nozzle plate (3) is used for quick installation of the funnel tube (1), and the nozzle plate (3) is arranged at the top end of the funnel tube (1); A positioning plate (4), the positioning plate (4) being arranged on the outer wall of the funnel tube (1), and the positioning plate (4) being used to limit the position of the nozzle plate (3) on the slide plate; A pushing plate (5), the pushing plate (5) is used to push the adjacent nozzle plate (3), and the pushing plate (5) is arranged at one end of the nozzle plate (3); A scraping piece (6) is used to scrape away debris on the top of the slide plate. The scraping piece (6) is arranged at one end of the nozzle plate (3).

2. The simple forming immersion nozzle capable of being used in multiple furnaces according to claim 1 is characterized in that: The bottom end of the funnel tube (1) is connected to the top end of the vertical tube (2), and the top end of the funnel tube (1) is fixedly connected to the bottom end of the nozzle plate (3). The top end of the nozzle plate (3) is provided with a circular hole for connecting with the funnel tube (1).

3. The simple forming immersion nozzle capable of being used in multiple furnaces according to claim 1 is characterized in that: The positioning plate (4) is sleeved on the outer wall of the funnel tube (1), and the distance between the positioning plate (4) and the opposite side of the nozzle plate (3) corresponds to the thickness of the slide plate.

4. The simple forming immersion nozzle capable of being used in multiple furnaces according to claim 1 is characterized in that: One end of the pushing plate (5) is fixedly connected to one end of the nozzle plate (3), and the width of the pushing plate (5) is 1.2-1.5 times the width of the scraping piece (6).

5. The simple forming immersion nozzle capable of being used in multiple furnaces according to claim 4 is characterized in that: The width of the pushing plate (5) is 1.3 times the width of the scraping piece (6).

6. The simple forming immersion nozzle capable of being used in multiple furnaces according to claim 1 is characterized in that: The scraping member (6) comprises a scraping block (61), one end of which is fixedly connected to one end of the nozzle plate (3), and a scraping groove is provided at one end of the scraping block (61) away from the nozzle plate (3).

7. The simple forming immersion nozzle capable of being used in multiple furnaces according to claim 6 is characterized in that: The scraping trough comprises an inclined surface section (62), a turning section (63) and a discharge section (64); the inclined surface section (62) is used for guiding the scraping material; the turning section (63) is used for turning the scraping material; and the discharge section (64) is used for guiding the output of the scraping material.

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