CN216404445U

CN216404445U - Intermediate frequency furnace blows argon gas frock

Info

Publication number: CN216404445U
Application number: CN202123265094.XU
Authority: CN
Inventors: 毕孝桃; 杜应流; 程龙
Original assignee: Anhui Yingliu Casting Co ltd
Current assignee: Anhui Yingliu Casting Co ltd
Priority date: 2021-12-23
Filing date: 2021-12-23
Publication date: 2022-04-29
Anticipated expiration: 2031-12-23

Abstract

The utility model discloses an argon blowing tool of an intermediate frequency furnace, which comprises the intermediate frequency furnace, wherein the tool comprises a hollow ring pipe, the side surface of the hollow ring pipe is connected with a first hose through a straight pipe, the first hose is connected with a second hose through a joint pipe, the second hose is communicated with argon equipment, the outer side of the hollow ring pipe is fixedly connected with support rods arranged in an annular array, the support rods are in supporting connection with the open end of the intermediate frequency furnace, one side of the hollow ring pipe, which is close to the intermediate frequency furnace, is provided with an argon outlet, and the argon outlet is welded with an exhaust head; the utility model discharges argon into the intermediate frequency furnace through the exhaust head in the hollow annular tube, effectively prevents the invasion of harmful gas, controls the quality of molten steel from the source, has simple structure, convenient manufacture and operation, greatly improves the product quality, and is suitable for mass production and use.

Description

Intermediate frequency furnace blows argon gas frock

Technical Field

The utility model relates to the technical field of investment casting, in particular to an argon blowing tool of an intermediate frequency furnace.

Background

Most smelting manufacturers in China use an intermediate frequency furnace to smelt molten steel for production at present, and the method has the main advantages that the smelting speed is high, the electricity-saving effect is good, the burning loss of iron materials is low, the energy consumption is low, and the maintenance is convenient, so that the method is commonly used by many small and medium-sized manufacturers, and the defects are that the smelting furnace adopts a non-oxidation method, does not have a smelting process, is basically a remelting process, and cannot blow oxygen to slag, so harmful elements such as phosphorus, sulfur and the like in molten steel cannot be removed, more customers have high requirements on the quality of products at present, and particularly, the requirements on the performance of materials such as high-low alloy steel, dual-phase steel and the like are more strict, so that the quality of the molten steel needs to be purified, and gas inclusions (N, H, O) and solid inclusions (metal or non-metal oxides such as aluminum oxide) cannot be generated. In order to reduce the inclusion defects, most of the defects are caused by blowing inert gas into a furnace so as to reduce the generation of harmful gas, argon is traditionally blown from a ladle, and the quality of molten steel cannot be effectively controlled from the source.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide an argon blowing tool for an intermediate frequency furnace, which discharges argon into the intermediate frequency furnace through an exhaust head in a hollow ring pipe, effectively prevents harmful gas from immersing, ensures the quality of molten steel, controls the quality of the molten steel from the source and can effectively solve the problems in the background technology.

In order to achieve the purpose, the utility model adopts the technical scheme that: the utility model provides an intermediate frequency furnace blows argon gas frock, includes the intermediate frequency furnace, and the frock includes hollow ring canal, straight tube coupling hose one is passed through to the side of hollow ring canal, hose one is through joint union coupling hose two, hose two and argon gas equipment intercommunication, the branch that the outside fixed connection annular array of hollow ring canal set up, branch supports with the open end of intermediate frequency furnace and is connected, one side that hollow ring canal is close to the intermediate frequency furnace is equipped with the argon gas export, argon gas exit welding exhaust head.

Preferably, the air outlet end of the air exhaust head is of a conical structure, and the inner cavity of the air exhaust head is in a necking shape.

Preferably, the lower end face of the supporting rod is fixedly connected with a limiting block, and the limiting block is attached to the inner wall of the opening of the intermediate frequency furnace.

Preferably, the joint pipe is provided with a regulating valve.

Preferably, the first hose is a fiber hose.

Preferably, the hollow ring pipe is a stainless steel seamless hollow pipe.

Preferably, heat insulation cotton is arranged on one side, far away from the intermediate frequency furnace, of the hollow ring pipe.

Preferably, the lateral surface of the heat insulation cotton is fixedly connected with a balancing weight through a thin line, and the balancing weight is symmetrically arranged.

Compared with the prior art, the utility model has the following beneficial effects: the utility model discharges argon into the intermediate frequency furnace through the exhaust head in the hollow ring pipe, effectively prevents the intrusion of harmful gas, ensures the quality of molten steel, controls the quality of the molten steel from the source, is suitable for smelting high-low alloy steel, dual-phase steel and products with strict requirements on the quality of the molten steel, has simple structure, convenient manufacture and convenient operation, greatly improves the quality of the products, and is suitable for mass production and use.

Drawings

FIG. 1 is a schematic view of the connection of the overall structure of the present invention with an intermediate frequency furnace;

fig. 2 is a perspective view of the overall structure of the present invention.

In the figure: 1. a hollow ring tube; 2. a straight pipe; 3. a first hose; 4. a joint pipe; 5. a second hose; 6. a strut; 7. an intermediate frequency furnace; 8. an exhaust head; 9. a limiting block; 10. adjusting a valve; 11. heat insulation cotton; 12. a thin wire; 13. and a balancing weight.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the utility model easy to understand, the utility model is further described with the specific embodiments.

As shown in fig. 1-2, an argon blowing tool for an intermediate frequency furnace comprises a hollow ring pipe 1, the side surface of the hollow ring pipe 1 is connected with a first hose 3 through a straight pipe 2, the first hose 3 is connected with a second hose 5 through a joint pipe 4, the second hose 5 is communicated with argon equipment, the outer side of the hollow ring pipe 1 is fixedly connected with a support rod 6 arranged in an annular array, the support rod 6 is connected with an open end of the intermediate frequency furnace 7 in a supporting manner, so that the hollow ring pipe 1 is suspended on the intermediate frequency furnace 7, one side of the hollow ring pipe 1 close to the intermediate frequency furnace 7 is provided with an argon outlet, an exhaust head 8 is welded at the argon outlet, the air outlet end of the exhaust head 8 is in a conical structure, so that the inner cavity of the exhaust head 8 is in a necking shape, in order to ensure the stability of the hollow ring pipe 1, a limit block 9 is fixedly connected to the lower end surface of the support rod 6, the limit block 9 is attached to the inner wall of the opening of the intermediate frequency furnace 7, a regulating valve 10 is installed on the joint pipe 4, the utility model is convenient for adjusting the delivery quantity of argon and controlling the delivery of argon, the first hose 3 adopts a fiber hose, which can resist high temperature and prolong the service life, the hollow ring pipe 1 adopts a stainless steel seamless hollow pipe, the sealing performance is good, in order to prevent the leakage of argon or the dissipation of heat, one side of the hollow ring pipe 1 far away from the intermediate frequency furnace 7 is provided with a heat insulation cotton 11, in order to prevent the internal air pressure from jacking up the hollow ring pipe 1 and the heat insulation cotton 11, the side surface of the heat insulation cotton 11 is fixedly connected with a balancing weight 13 through a fine wire 12, the balancing weight 13 is symmetrically arranged, when in use, the hollow ring pipe 1 is placed above the intermediate frequency furnace 7, so that a support rod 6 is in supporting connection with the end surface of the intermediate frequency furnace 7, a limit block 9 is attached to the inner wall of the intermediate frequency furnace 7, a regulating valve 10 is opened, argon enters the hollow ring pipe 1 through the first hose 3, enters the intermediate frequency furnace 7 through an exhaust head 8 to play a role in protecting the molten steel and prevent the intrusion of harmful gas, the smelting furnace is suitable for smelting products with strict requirements on quality of high-low alloy steel, dual-phase steel and molten steel, has a simple structure, is convenient to manufacture and operate, greatly improves the product quality, and is suitable for mass production and use.

While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the utility model. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the utility model.

Claims

1. The utility model provides an intermediate frequency furnace blows argon gas frock, includes intermediate frequency furnace, its characterized in that: the tool comprises a hollow ring pipe, a straight pipe is connected with a first hose through the side face of the hollow ring pipe, the first hose is connected with a second hose through a joint pipe, the second hose is communicated with argon equipment, a support rod is fixedly connected with the outer side of the hollow ring pipe and arranged in an annular array, the support rod is connected with the open end of the intermediate frequency furnace in a supporting mode, an argon outlet is formed in one side, close to the intermediate frequency furnace, of the hollow ring pipe, and an exhaust head is welded at the argon outlet.

2. The argon blowing tool of the intermediate frequency furnace according to claim 1, characterized in that: the air outlet end of the air exhaust head is of a conical structure, and the inner cavity of the air exhaust head is in a necking shape.

3. The argon blowing tool of the intermediate frequency furnace according to claim 1, characterized in that: the lower end face of the supporting rod is fixedly connected with a limiting block, and the limiting block is attached to the inner wall of the opening of the intermediate frequency furnace.

4. The argon blowing tool of the intermediate frequency furnace according to claim 1, characterized in that: and the joint pipe is provided with an adjusting valve.

5. The argon blowing tool of the intermediate frequency furnace according to claim 1, characterized in that: the first hose is a fiber hose.

6. The argon blowing tool of the intermediate frequency furnace according to claim 1, characterized in that: the hollow ring pipe is a stainless steel seamless hollow pipe.

7. The argon blowing tool of the intermediate frequency furnace according to claim 1, characterized in that: and one side of the hollow ring pipe, which is far away from the intermediate frequency furnace, is provided with heat insulation cotton.

8. The argon blowing tool of the intermediate frequency furnace according to claim 7, characterized in that: the side of the heat insulation cotton is fixedly connected with balancing weights through thin lines, and the balancing weights are symmetrically arranged.