CN214920456U

CN214920456U - Molten steel holding furnace for casting container corner fittings

Info

Publication number: CN214920456U
Application number: CN202121446725.5U
Authority: CN
Inventors: 常万明; 郑文钦
Original assignee: Longyan Yirong Foundry Co ltd
Current assignee: Longyan Yirong Foundry Co ltd
Priority date: 2021-06-28
Filing date: 2021-06-28
Publication date: 2021-11-30
Anticipated expiration: 2031-06-28

Abstract

The utility model discloses a molten steel heat preservation stove for casting container corner fittings, belongs to container corner fittings field, and it includes the sealed furnace body in top, the top of furnace body is equipped with the holding cover, be equipped with piston and slide bar in the holding cover, the one end of slide bar with the bottom fixed connection of piston, the other end of slide bar extends to the inside of furnace body, the slide bar is hollow, the top of slide bar is equipped with first through-hole, the outer wall upper portion of slide bar is equipped with the perforation, be equipped with the second through-hole on the piston, first through-hole and second through-hole coaxial line set up; the top of the containing sleeve is provided with an air inlet pipe and an air exhaust pipe, the air inlet pipe is provided with a first electromagnetic valve, and the air exhaust pipe is provided with a second electromagnetic valve. Has the characteristics of good heat preservation effect and capability of slowing down the oxidation of molten steel.

Description

Molten steel holding furnace for casting container corner fittings

Technical Field

The utility model relates to a container corner fittings technical field especially relates to a molten steel heat preservation stove for casting container corner fittings.

Background

The corner fittings are important parts on the container, play a key role in the operations of hoisting, carrying, fixing, stacking and bolting the container, almost all transmit the most acting force received by the container body by the corner fittings, and simultaneously, as the outermost edge of the container body, the corner fittings also play a role in protecting the container body. The structure size and positioning size of the container are strictly regulated in the ISO 1161 standard, so that necessary conditions are provided for realizing the container automation operation.

In the prior art, the production of container corner fittings is completed through a casting process, in the casting process, raw materials are required to be placed in a heat preservation furnace for heat preservation after being melted into molten steel, but the existing heat preservation furnace is open, so that the molten steel is easily oxidized to generate impurities while heat loss is caused and the heat preservation effect is reduced.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to solve the technical problem of providing a molten steel holding furnace for casting container corner fittings, which has the characteristics of good heat preservation effect and capability of slowing down the oxidation of molten steel.

The application provides a molten steel heat preservation stove for casting container corner fittings adopts following technical scheme: the furnace comprises a furnace body with a sealed top, wherein an accommodating sleeve is arranged at the top of the furnace body, a piston and a slide rod are arranged in the accommodating sleeve, one end of the slide rod is fixedly connected with the bottom of the piston, the other end of the slide rod extends into the furnace body, the slide rod is hollow, a first through hole is formed in the top of the slide rod, a through hole is formed in the upper part of the outer wall of the slide rod, a second through hole is formed in the piston, and the first through hole and the second through hole are arranged coaxially;

the top of the containing sleeve is provided with an air inlet pipe and an air exhaust pipe, the air inlet pipe is provided with a first electromagnetic valve, and the air exhaust pipe is provided with a second electromagnetic valve.

The utility model discloses preferred technical scheme lies in, the outside of furnace body is equipped with first firebrick layer, heating wire and second firebrick layer in proper order, first firebrick with be equipped with the cavity between the second firebrick, the heating wire is located on the first firebrick layer, intake pipe one end with holding cover intercommunication, the other end pass the cavity and laminate with second firebrick layer.

The utility model discloses preferred technical scheme lies in, the top of furnace body still is equipped with the conveying pipeline that is used for the feeding and arranges the material, be equipped with sealed lid on the conveying pipeline.

The utility model discloses preferred technical scheme lies in, the other end intercommunication air supply of intake pipe and to the holding cover in transport nitrogen gas.

The utility model discloses preferred technical scheme lies in, the other end of slide bar still is equipped with stirs the blade.

The utility model discloses preferred technical scheme lies in, perforate the inside of intercommunication slide bar and the inside of furnace body, it is located the liquid level top of molten steel to perforate.

The utility model discloses preferred technical scheme lies in, the one end intercommunication holding cover of exhaust tube, the other end are equipped with the aspiration pump, the aspiration pump is bled to the outside of furnace body.

The utility model discloses preferred technical scheme lies in, the opening of holding cover with sealing connection between the top outer wall of furnace body.

The utility model has the advantages that: the oxidation of molten steel is effectively avoided through the input and the extraction of nitrogen, and in the process of the input and the extraction of nitrogen, the slide bar and the stirring blade are driven to do reciprocating motion in the vertical direction, so that the stirring of the molten steel is realized, the molten steel can be ensured to be in a state of uniform temperature by the heating of the electric heating wire, and the heat preservation effect is effectively improved.

Drawings

FIG. 1 is a schematic view of the overall structure of a molten steel holding furnace for casting corner fittings of a container according to an embodiment of the present invention;

in the figure:

1. a furnace body; 11. a delivery pipe; 12. a sealing cover; 2. an accommodating sleeve; 21. a piston; 210. a second through hole; 22. a slide bar; 221. a first through hole; 222. perforating; 23. an air inlet pipe; 230. a first solenoid valve; 24. an air exhaust pipe; 240. a second solenoid valve; 25. agitating the blades; 3. a first refractory brick layer; 4. an electric heating wire; 5. a second refractory brick layer; 6. a cavity.

Detailed Description

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

As shown in fig. 1, the utility model provides a molten steel holding furnace for casting container corner fittings, including top sealing's furnace body 1, the top of furnace body 1 is equipped with holding cover 2, be equipped with piston 21 and slide bar 22 in the holding cover 2, the one end of slide bar 22 with the bottom fixed connection of piston 21, the other end of slide bar 22 extends to the inside of furnace body 1, slide bar 22 is hollow, the top of slide bar 22 is equipped with first through-hole 221, the outer wall upper portion of slide bar 22 is equipped with perforation 222, be equipped with second through-hole 210 on piston 21, first through-hole 221 and second through-hole 210 set up coaxially;

the top of the accommodating sleeve 2 is provided with an air inlet pipe 23 and an air exhaust pipe 24, the air inlet pipe 23 is provided with a first electromagnetic valve 230, and the air exhaust pipe 24 is provided with a second electromagnetic valve 240.

Preferably, a first refractory brick layer 3, an electric heating wire 4 and a second refractory brick layer 5 are sequentially arranged outside the furnace body 1, a cavity 6 is arranged between the first refractory brick and the second refractory brick, the electric heating wire 4 is arranged on the first refractory brick layer 3, one end of the air inlet pipe 23 is communicated with the accommodating sleeve 2, and the other end of the air inlet pipe penetrates through the cavity 6 and is attached to the second refractory brick layer 5. The cavity 6 is arranged, and the heat insulation effect is further improved by utilizing the characteristic of poor air heat conductivity.

Preferably, the top of the furnace body 1 is further provided with a material conveying pipe 11 for feeding and discharging materials, and the material conveying pipe 11 is provided with a sealing cover 12.

Preferably, the other end of the air inlet pipe 23 is communicated with an air source and conveys nitrogen into the accommodating sleeve 2.

Preferably, the other end of the slide bar 22 is further provided 23 with an agitating blade 25.

Preferably, the through hole 222 communicates the inside of the slide rod 22 and the inside of the furnace body 1, and the through hole 222 is located above the liquid level of the molten steel. The molten steel is prevented from entering the inside of the slide bar 22.

Preferably, one end of the air extraction pipe 24 is communicated with the accommodating sleeve 2, and the other end is provided with an air extraction pump which extracts air to the outside of the furnace body 1.

Preferably, the opening of the accommodating sleeve 2 is connected with the top outer wall of the furnace body 1 in a sealing manner.

The utility model provides a pair of molten steel heat preservation stove for casting container corner fittings's implementation principle does: the first electromagnetic valve 230 is closed, the second electromagnetic valve 240 is opened, air is extracted outwards through the extraction pipe 24, so that air in the furnace body 1 and above the molten steel and air in the accommodating sleeve 2 and above the piston 21 are extracted, meanwhile, the piston 21 drives the slide rod 22 to move upwards due to the fact that the upper part of the piston 21 is in a negative pressure state, stirring of the molten steel by the stirring blades 25 is achieved, and the internal temperature of the molten steel is in a uniform state; the first electromagnetic valve 230 is opened, the second electromagnetic valve 240 is opened, nitrogen is input into the accommodating sleeve 2, the piston 21 and the slide rod 22 are reset, and secondary stirring is realized, so that the furnace body 1 is filled with nitrogen and molten steel oxidation is prevented, the internal temperature of the molten steel is ensured to be in a balanced state through stirring of the stirring blades 25, and the heat preservation effect is improved.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the invention. The present invention is not to be limited by the specific embodiments disclosed herein, and other embodiments that fall within the scope of the claims of the present application are intended to be within the scope of the present invention.

Claims

1. A molten steel holding furnace for casting container corner fittings is characterized in that:

the furnace comprises a furnace body (1) with a sealed top, wherein the top of the furnace body (1) is provided with a containing sleeve (2), a piston (21) and a sliding rod (22) are arranged in the containing sleeve (2), one end of the sliding rod (22) is fixedly connected with the bottom of the piston (21), the other end of the sliding rod (22) extends into the furnace body (1), the sliding rod (22) is hollow, the top of the sliding rod (22) is provided with a first through hole (221), the upper part of the outer wall of the sliding rod (22) is provided with a through hole (222), the piston (21) is provided with a second through hole (210), and the first through hole (221) and the second through hole (210) are coaxially arranged;

the top of the accommodating sleeve (2) is provided with an air inlet pipe (23) and an air exhaust pipe (24), the air inlet pipe (23) is provided with a first electromagnetic valve (230), and the air exhaust pipe (24) is provided with a second electromagnetic valve (240).

2. A furnace for holding molten steel for casting container corners according to claim 1, characterized in that: the external portion of furnace body (1) is equipped with first firebrick layer (3), heating wire (4) and second firebrick layer in proper order, first firebrick with be equipped with the cavity between the second firebrick, heating wire (4) are located on the first firebrick layer (3), intake pipe (23) one end with holding cover (2) intercommunication, the other end pass the cavity, and laminate with the second firebrick layer.

3. A furnace for holding molten steel for casting container corners according to claim 1, characterized in that: the top of the furnace body (1) is also provided with a material conveying pipe (11) for feeding and discharging materials, and the material conveying pipe (11) is provided with a sealing cover (12).

4. A furnace for holding molten steel for casting container corners according to claim 2, characterized in that: the other end of the air inlet pipe (23) is communicated with an air source and conveys nitrogen into the accommodating sleeve (2).

5. A furnace for holding molten steel for casting container corners according to claim 1, characterized in that: and the other end of the sliding rod (22) is also provided with a stirring blade (25).

6. A furnace for holding molten steel for casting container corners according to claim 1, characterized in that: the through hole (222) is communicated with the inside of the sliding rod (22) and the inside of the furnace body (1), and the through hole (222) is positioned above the liquid level of the molten steel.

7. A furnace for holding molten steel for casting container corners according to claim 1, characterized in that: one end of the air suction pipe (24) is communicated with the accommodating sleeve (2), and the other end of the air suction pipe is provided with an air suction pump which sucks air to the outside of the furnace body (1).

8. A furnace for holding molten steel for casting container corners according to claim 1, characterized in that: the opening of the accommodating sleeve (2) is hermetically connected with the outer wall of the top of the furnace body (1).