CN216729448U

CN216729448U - Graphite crystallizer for horizontal continuous casting

Info

Publication number: CN216729448U
Application number: CN202220209108.1U
Authority: CN
Inventors: 展伟; 王华杰
Original assignee: Qingdao Shengkaiweijian Graphite Products Co ltd
Current assignee: Qingdao Shengkaiweijian Graphite Products Co ltd
Priority date: 2022-01-25
Filing date: 2022-01-25
Publication date: 2022-06-14
Anticipated expiration: 2032-01-25

Abstract

The utility model relates to the technical field of horizontal continuous casting, in particular to a graphite crystallizer for horizontal continuous casting, which comprises a crystallizer body, wherein a heat-conducting seat is fixedly connected with the arc-shaped outer wall of the crystallizer body, round holes are distributed on the arc-shaped outer wall of the crystallizer body at equal intervals, an annular piston is slidably connected with the arc-shaped inner wall of the heat-conducting seat, through holes are distributed on the arc-shaped outer wall of the heat-conducting seat at equal intervals, a connecting component is fixedly connected with the outer wall of one side of the heat-conducting seat close to the through holes, annular holes are formed on the arc-shaped inner wall of the heat-conducting seat close to the round holes, and an input component is fixedly connected with the top of the arc-shaped outer wall of the heat-conducting seat. The phenomenon of uneven cooling of the molten steel in the crystallizer body is avoided.

Description

Graphite crystallizer for horizontal continuous casting

Technical Field

The utility model relates to the technical field of horizontal continuous casting, in particular to a graphite crystallizer for horizontal continuous casting.

Background

The horizontal continuous casting refers to a continuous casting type that molten steel is injected into a horizontally placed crystallizer from the horizontal direction, a casting blank is solidified and moves in a casting machine until the molten steel reaches a cooling bed and is in a horizontal state, equipment of the horizontal continuous casting machine is lighter than an arc continuous casting machine and can be installed in an old factory, so that the horizontal continuous casting machine is greatly saved in engineering cost and is particularly suitable for technical transformation of small iron works, when the horizontal continuous casting is carried out, the horizontal continuous casting machine consists of a ladle frame or a ladle turret, a tundish car, a tundish, a crystallizer, a billet drawing machine, a flame cutting machine, an ingot guiding rod, a casting blank roller way, a steel turning machine or a steel pushing machine, a cooling bed and a steel drawing machine, the crystallizer is continuous casting equipment which receives the molten steel injected from the tundish and solidifies the molten steel into a firm billet shell according to a specified section shape, and is the most key component of the horizontal continuous casting machine, and the structure, the material quality and the performance parameters of the crystallizer play a decisive role in casting blank quality and casting machine production capacity, in order to improve the quality of a continuous casting product, a graphite mold for horizontal continuous casting is required.

In the prior art, the following problems exist:

when molten steel is poured into the graphite crystallizer, the molten steel firstly contacts the bottom of the graphite crystallizer under the action of gravity, so that the molten steel below is firstly cooled in the molten steel pouring process, the friction force below a steel billet is large in the demolding process, the steel billet is easy to break, in addition, the steel billet can be directly pulled out only through a traction device in the demolding process, the internal stress of the steel billet is uneven, the situation of cracks in the steel billet exists, and the quality of a continuous casting product is low.

SUMMERY OF THE UTILITY MODEL

The present invention has been made in an effort to solve the above-mentioned problems occurring in the prior art, and an object of the present invention is to provide a graphite mold for horizontal continuous casting.

The technical scheme of the utility model is as follows:

the utility model provides a graphite crystallizer for horizontal continuous casting, includes the crystallizer body, crystallizer body arc outer wall fixedly connected with heat conduction seat, the round hole that the equidistance distributes is seted up to crystallizer body arc outer wall, heat conduction seat arc inner wall sliding connection has annular piston, the through-hole that the equidistance distributes is seted up to heat conduction seat arc outer wall, heat conduction seat one side outer wall is close to through-hole department fixedly connected with coupling assembling, heat conduction seat arc inner wall is close to round hole department and has seted up the annular opening, heat conduction seat arc outer wall top fixedly connected with input assembly, crystallizer body arc inner wall sliding connection has seal assembly.

Preferably, the inner wall of one side of the crystallizer body is fixedly connected with a core rod.

Preferably, the sealing assembly comprises a sealing plate which is slidably connected to the arc-shaped inner wall of the crystallizer body, the core rod penetrates through the outer wall of one side of the sealing plate, and the outer wall of one side of the crystallizer body is fixedly connected with the power assembly.

Preferably, the power assembly comprises a support fixedly connected to the outer wall of one side of the crystallizer body, the outer wall of one side of the support is fixedly connected with an air cylinder, and the output end of the air cylinder is fixedly connected with a connecting plate.

Preferably, the outer wall of one side of the connecting plate is fixedly connected with two transmission rods, the two transmission rods penetrate through the inner wall of one side of the crystallizer body, and the two transmission rods are fixedly connected with the sealing plate.

Preferably, the input assembly comprises an input pipe fixedly connected to the arc-shaped outer wall of the heat conducting seat, and the top of the arc-shaped outer wall of the input pipe is connected with a sealing cover through threads.

Preferably, coupling assembling includes the connecting pipe of fixed connection at heat conduction seat one side outer wall, connecting pipe one side outer wall fixedly connected with connecting seat, connecting seat arc outer wall fixedly connected with intake pipe.

The utility model provides a graphite crystallizer for horizontal continuous casting through improvement, compared with the prior art, the graphite crystallizer has the following improvement and advantages:

one is as follows: according to the utility model, through the arranged heat conduction seat, the input pipe, the annular hole and the round hole, molten steel can be injected into the heat conduction seat through the input pipe in the continuous casting process, the heat conduction seat is heated through the molten steel, so that the temperature in the crystallizer body is relatively uniform, the molten steel can uniformly enter the crystallizer body through the annular hole in the heat conduction seat and the round holes uniformly distributed on the outer wall of the crystallizer body, the phenomenon that the molten steel is not uniformly cooled in the crystallizer body is avoided, the phenomenon that the friction force of a steel billet is not uniform in the demolding process is further avoided, and the phenomenon that the steel billet is broken in the demolding process is also avoided;

the second step is as follows: according to the utility model, through the arrangement of the air cylinder, the connecting plate, the sealing plate and the transmission rod, the switch of the air cylinder can be switched on after all molten steel enters the crystallizer body, the air cylinder pushes the connecting plate to move, the sealing plate is driven to move through the transmission rod, the sealing of the round hole is realized, the steel billet caused by cooling and solidifying of the molten steel in the round hole is prevented from being limited by the round hole, the demolding difficulty is reduced, when demolding is carried out, the switch of the air cylinder is switched on again, the air cylinder pushes the sealing plate to move through the connecting plate and the transmission rod again, at the moment, the sealing plate pushes the steel billet to move, and the steel billet is uniformly stressed in the demolding process by matching with a traction device, so that the product quality is improved.

Drawings

The utility model is further explained below with reference to the figures and examples:

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

FIG. 2 is a schematic view of the connection assembly of the present invention;

FIG. 3 is a schematic cross-sectional view of a heat conducting base according to the present invention;

FIG. 4 is a schematic cross-sectional view of the crystallizer body of the present invention;

fig. 5 is a side cross-sectional structural schematic of the present invention.

Description of reference numerals:

1. a crystallizer body; 2. a heat conducting base; 3. a support; 4. a cylinder; 5. a connecting plate; 6. a transmission rod; 7. a sealing cover; 8. an input tube; 9. a connecting seat; 10. an air inlet pipe; 11. a connecting pipe; 12. an annular piston; 13. a circular hole; 14. an annular aperture; 15. a core rod; 16. and (7) sealing the plate.

Detailed Description

The present invention is described in detail below, and technical solutions in the embodiments of the present invention are clearly and completely described, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The utility model provides a graphite crystallizer for horizontal continuous casting through improvement, and the technical scheme of the utility model is as follows:

as shown in fig. 1-5, a graphite crystallizer for horizontal continuous casting comprises a crystallizer body 1, wherein an arc-shaped outer wall of the crystallizer body 1 is fixedly connected with a heat conducting seat 2, the arc-shaped outer wall of the crystallizer body 1 is provided with round holes 13 distributed at equal intervals, an arc-shaped inner wall of the heat conducting seat 2 is slidably connected with an annular piston 12, the arc-shaped outer wall of the heat conducting seat 2 is provided with through holes distributed at equal intervals, the outer wall of one side of the heat conducting seat 2, which is close to the through holes, is fixedly connected with a connecting assembly, the arc-shaped inner wall of the heat conducting seat 2, which is close to the round holes 13, is provided with an annular hole 14, the top of the arc-shaped outer wall of the heat conducting seat 2 is fixedly connected with an input assembly, and the arc-shaped inner wall of the crystallizer body 1 is slidably connected with a sealing assembly; by means of the structure, the heat conducting seat 2 can be heated through the molten steel, and the temperature inside the crystallizer body 1 is uniform.

Further, a core rod 15 is fixedly connected to the inner wall of one side of the crystallizer body 1; by means of the structure, a cavity can be formed in the core rod 15 and the crystallizer body 1, and molten steel can be conveniently solidified and molded.

Further, the sealing assembly comprises a sealing plate 16 connected to the arc-shaped inner wall of the crystallizer body 1 in a sliding manner, the core rod 15 penetrates through the outer wall of one side of the sealing plate 16, and the outer wall of one side of the crystallizer body 1 is fixedly connected with a power assembly; by means of the structure, the round hole 13 can be sealed by moving the sealing plate 16, the steel billet caused by cooling and solidifying of molten steel in the round hole 13 is prevented from being limited by the round hole 13, and the demolding difficulty is reduced.

Further, the power assembly comprises a support 3 fixedly connected to the outer wall of one side of the crystallizer body 1, the outer wall of one side of the support 3 is fixedly connected with an air cylinder 4, and the output end of the air cylinder 4 is fixedly connected with a connecting plate 5; with the above structure, the connecting plate 5 can be driven to move by the air cylinder 4.

Furthermore, the outer wall of one side of the connecting plate 5 is fixedly connected with two transmission rods 6, the two transmission rods 6 penetrate through the inner wall of one side of the crystallizer body 1, and the two transmission rods 6 are fixedly connected with the sealing plate 16; with the above structure, the sealing plate 16 can be driven to move by the transmission rod 6 during the movement of the connecting plate 5.

Further, the input assembly comprises an input pipe 8 fixedly connected to the arc-shaped outer wall of the heat conducting seat 2, and the top of the arc-shaped outer wall of the input pipe 8 is connected with a sealing cover 7 through threads; with the above structure, molten steel can be poured into the heat conduction seat 2 through the inlet pipe 8.

Further, the connecting assembly comprises a connecting pipe 11 fixedly connected to the outer wall of one side of the heat conducting seat 2, the outer wall of one side of the connecting pipe 11 is fixedly connected with a connecting seat 9, and the arc-shaped outer wall of the connecting seat 9 is fixedly connected with an air inlet pipe 10; borrow by above-mentioned structure, can be connected heat-conducting seat 2 and air pump through intake pipe 10, the air pump during operation will be gaseous through intake pipe 10, connecting seat 9 and the even injection heat-conducting seat 2 inside of connecting pipe 11, promote annular piston 12 through atmospheric pressure and remove.

The working principle is as follows: when the heat conduction device is used, molten steel is injected into the heat conduction seat 2 through the input pipe 8, the heat conduction seat 2 is heated through the molten steel, so that the temperature in the crystallizer body 1 is relatively uniform, the molten steel can uniformly enter the crystallizer body 1 through the annular holes 14 on the heat conduction seat 2 and the round holes 13 uniformly distributed on the outer wall of the crystallizer body 1, the phenomenon that the molten steel is not uniformly cooled in the crystallizer body 1 is avoided, the phenomenon that the friction force on a steel billet is not uniform in the demolding process is further avoided, the phenomenon that the steel billet is broken in the demolding process is also avoided, after the molten steel injection amount reaches a certain degree, the input pipe 8 is sealed through the sealing cover 7, the heat conduction seat 2 is connected with the air pump through the air inlet pipe 10, and the air pump uniformly injects air into the heat conduction seat 2 through the air inlet pipe 10, the connecting seat 9 and the connecting pipe 11 when the air pump works, the annular piston 12 is pushed to move through air pressure, the annular piston 12 pushes molten steel in the heat conducting seat 2 to move, the molten steel is injected into the crystallizer body 1 through the annular hole 14 and the round hole 13, after the molten steel completely enters the crystallizer body 1, the switch of the air cylinder 4 is switched on, the air cylinder 4 pushes the connecting plate 5 to move, the sealing plate 16 is driven to move through the transmission rod 6, sealing of the round hole 13 is achieved, the situation that a steel billet caused by cooling and solidifying of the molten steel in the round hole 13 is limited by the round hole 13 is avoided, demoulding difficulty is reduced, when demoulding is carried out, the switch of the air cylinder 4 is switched on again, the air cylinder 4 pushes the sealing plate 16 to move through the connecting plate 5 and the transmission rod 6, at the moment, the sealing plate 16 pushes the steel billet to move, and the traction equipment is matched, so that the stress of the steel billet is uniform in the demoulding process, and product quality is improved.

Claims

1. A graphite crystallizer for horizontal continuous casting, characterized in that: including crystallizer body (1), crystallizer body (1) arc outer wall fixedly connected with heat-conducting seat (2), round hole (13) that the equidistance distributes are seted up to crystallizer body (1) arc outer wall, heat-conducting seat (2) arc inner wall sliding connection has annular piston (12), the through-hole that the equidistance distributes is seted up to heat-conducting seat (2) arc outer wall, heat-conducting seat (2) one side outer wall is close to through-hole department fixedly connected with coupling assembling, heat-conducting seat (2) arc inner wall is close to round hole (13) department and has seted up annular opening (14), heat-conducting seat (2) arc outer wall top fixedly connected with input assembly, crystallizer body (1) arc inner wall sliding connection has seal assembly.

2. A graphite crystallizer for horizontal continuous casting according to claim 1, characterized in that: and a core rod (15) is fixedly connected to the inner wall of one side of the crystallizer body (1).

3. A graphite crystallizer for horizontal continuous casting according to claim 2, characterized in that: the sealing assembly comprises a sealing plate (16) which is connected to the arc-shaped inner wall of the crystallizer body (1) in a sliding mode, the core rod (15) penetrates through the outer wall of one side of the sealing plate (16), and a power assembly is fixedly connected to the outer wall of one side of the crystallizer body (1).

4. A graphite crystallizer for horizontal continuous casting according to claim 3, characterized in that: the power assembly comprises a support (3) fixedly connected to the outer wall of one side of the crystallizer body (1), an air cylinder (4) fixedly connected to the outer wall of one side of the support (3), and a connecting plate (5) fixedly connected to the output end of the air cylinder (4).

5. A graphite crystallizer for horizontal continuous casting according to claim 4, characterized in that: the outer wall of one side of the connecting plate (5) is fixedly connected with two transmission rods (6), the two transmission rods (6) penetrate through the inner wall of one side of the crystallizer body (1), and the two transmission rods (6) are fixedly connected with the sealing plate (16).

6. A graphite crystallizer for horizontal continuous casting according to claim 1, characterized in that: the input assembly comprises an input pipe (8) fixedly connected to the arc-shaped outer wall of the heat conducting seat (2), and the top of the arc-shaped outer wall of the input pipe (8) is connected with a sealing cover (7) through threads.

7. A graphite crystallizer for horizontal continuous casting according to claim 1, characterized in that: coupling assembling includes connecting pipe (11) of fixed connection at heat conduction seat (2) one side outer wall, connecting pipe (11) one side outer wall fixedly connected with connecting seat (9), connecting seat (9) arc outer wall fixedly connected with intake pipe (10).