A breather baffle device for use in the casting of molten metal

Abstract

The utility model relates to a ventilation baffle device for smelting and refining, which comprises a movable frame body provided with universal wheels with brakes at the bottom, a ventilation hard pipe capable of being adjusted to swing up, down, left and right is arranged on the movable frame body, the front end of the ventilation hard pipe is located in front of the movable frame body, a ventilation hose is connected to the rear end of the ventilation hard pipe, and a protective baffle is fixed on the front end side of the movable frame body and located around the ventilation hard pipe. The ventilation baffle device for smelting and refining is used by pushing the movable frame body close to the smelting furnace, the front end of the ventilation hard pipe is aligned with and inserted into the molten aluminum in the smelting furnace, and the impurities in the melt are made to float up by using the argon gas to form bubbles in the molten aluminum. In this process, the protective baffle is located on the front end side of the movable frame body, which can isolate heat radiation and block the splashing molten aluminum to a large extent.

Description

Technical Field

[0001] This utility model relates to a ventilation barrier device for smelting and refining. Background Technology

[0002] Aluminum and aluminum alloys are widely used in aerospace, automotive manufacturing, and building decoration due to their low density, high strength, and excellent electrical and thermal conductivity. In the smelting process of aluminum and aluminum alloys, aluminum refining is a crucial step in improving the purity of the material. The process of refining by introducing an inert gas (such as argon) is widely adopted in industry because it effectively removes hydrogen and non-metallic inclusions (such as oxides and nitrides) from the aluminum melt.

[0003] In existing technologies, argon refining typically involves inserting a refining tube into the molten aluminum in a melting furnace. Argon gas forms bubbles in the molten aluminum, which rise to the surface, causing impurities in the melt to float. However, this process presents significant safety hazards in practice: firstly, the temperature of the molten aluminum in the melting furnace reaches 700-850℃, and the high-temperature melt releases a large amount of heat to the surrounding environment through thermal radiation, posing a risk of burns to operators; secondly, the introduction of argon gas violently agitates the molten aluminum, easily causing splashing. These splashing, high-temperature droplets may directly contact the operator, causing personal injury or equipment damage.

[0004] To solve the above technical problems, this invention provides a ventilation baffle device for casting refining. Utility Model Content

[0005] In view of the shortcomings of the prior art, the technical problem to be solved by this utility model is to provide a ventilation baffle device for smelting and refining.

[0006] To solve the above-mentioned technical problems, the technical solution of this utility model is: a ventilation baffle device for melting and casting refining, including a movable frame with universal wheels equipped with brakes at the bottom, a ventilation rigid pipe that can be adjusted up, down, left and right on the movable frame, the front end of the ventilation rigid pipe being located in front of the movable frame, the rear end of the ventilation rigid pipe being connected to a ventilation hose, and a protective baffle plate being fixed on the front side of the movable frame surrounding the ventilation rigid pipe.

[0007] Preferably, the movable frame is a three-dimensional frame in the shape of an isosceles trapezoid, which is narrower at the top and wider at the bottom, and the four casters are respectively installed at the upper left, lower left, upper right, and lower right corners of the movable frame.

[0008] Preferably, a horizontal rotating shaft with an axial direction of left and right is installed on the top surface of the front end side of the movable frame, and a vertical rotating shaft with an axial direction perpendicular to the horizontal rotating shaft is installed at the middle position of the horizontal rotating shaft, and a mounting body for a ventilated rigid pipe is provided at the top end of the vertical rotating shaft.

[0009] Preferably, the mounting base consists of a lower base and an upper base, with the lower base fixed to the top of the vertical rotating shaft.

[0010] Preferably, a semi-circular notch is provided on the connecting surface of the lower seat and the upper seat. The two semi-circular notches form a circular through-hole for the ventilation tube. The upper seat is locked to the lower seat by bolts and nuts to facilitate clamping the ventilation tube onto the through-hole.

[0011] Preferably, the protective baffle includes a left baffle and a right baffle, and the venting rigid pipe is located between the left and right baffles.

[0012] Preferably, a support frame for a ventilation hose is fixed on the top surface of the rear end side of the movable frame.

[0013] Preferably, the support frame includes a support frame on which a plurality of support rods extending laterally are evenly distributed vertically.

[0014] Preferably, the left end of each support rod is fixed to the support frame, and the right end of each support rod is suspended and vertically fixed with an upwardly extending limiting bend.

[0015] Preferably, the height of the limiting bend is less than the distance between two adjacent support rods.

[0016] Compared with existing technologies, this invention has the following advantages: The ventilation and baffle device for smelting and refining moves the movable frame closer to the smelting furnace, aligns the front end of the ventilation pipe with and inserts it into the molten aluminum inside the furnace, and utilizes the process of argon gas being introduced to form bubbles that rise to the surface, causing impurities in the melt to float. During this process, the protective baffle is located on the front side of the movable frame, which can largely isolate heat radiation and block splashing molten aluminum.

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model.

[0019] In the diagram: 1. Caster wheel; 2. Movable frame; 3. Ventilation rigid pipe; 4. Ventilation flexible pipe; 5. Horizontal pivot; 6. Vertical pivot; 7. Lower seat; 8. Upper seat; 9. Bolt; 10. Left baffle; 11. Right baffle; 12. Support frame; 13. Support rod; 14. Limiting bend. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] It should be noted that the following detailed descriptions are exemplary and intended to provide further explanation of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0022] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0023] like Figure 1 As shown, this embodiment provides a ventilation baffle device for casting and refining, including a movable frame 2 with universal wheels 1 equipped with brakes at the bottom, a ventilation rigid pipe 3 that can be adjusted up, down, left and right on the movable frame, the front end of the ventilation rigid pipe being located in front of the movable frame, the rear end of the ventilation rigid pipe being connected to a ventilation hose 4, and a protective baffle plate being fixed on the front side of the movable frame surrounding the ventilation rigid pipe.

[0024] In this embodiment of the utility model, the movable frame is a three-dimensional frame in the shape of an isosceles trapezoid that is narrower at the top and wider at the bottom. The four casters are respectively installed at the upper left, lower left, upper right, and lower right corners of the movable frame.

[0025] In this embodiment of the invention, a horizontal rotating shaft 5 with its axis pointing left and right is installed on the top surface of the front end side of the movable frame. A vertical rotating shaft 6 with its axis perpendicular to the horizontal rotating shaft is installed at the middle position of the horizontal rotating shaft. A mounting base for a venting rigid pipe is provided at the top end of the vertical rotating shaft. The venting rigid pipe can be adjusted up, down, left, and right within a certain range.

[0026] In this embodiment of the utility model, the mounting base is composed of a lower base 7 and an upper base 8, with the lower base fixed to the top of the vertical rotating shaft.

[0027] In this embodiment of the utility model, a semi-circular notch is provided on the connecting surface of the lower seat and the upper seat. The two semi-circular notches form a circular through-hole for the ventilation tube. The upper seat is locked to the lower seat by bolts 9 and nuts to facilitate clamping the ventilation tube in the through-hole.

[0028] In this embodiment of the utility model, the protective baffle includes a left baffle 10 and a right baffle 11, and the ventilation rigid pipe is located between the left and right baffles.

[0029] In this embodiment of the utility model, a support frame for a ventilation hose is fixed on the top surface of the rear end side of the movable frame.

[0030] In this embodiment of the utility model, the support frame includes a support frame 12, on which a plurality of support rods 13 extending laterally are evenly distributed vertically.

[0031] In this embodiment of the utility model, the left end of each support rod is fixed to the support frame, and the right end of each support rod is suspended and vertically fixed with an upwardly extending limiting bend 14.

[0032] In this embodiment of the invention, the distance between the top of the limiting bend and the upper support rod is greater than the outer diameter of the ventilation hose.

[0033] In this embodiment of the invention, the working principle of the ventilation baffle device for smelting and refining is as follows: the device moves its movable frame closer to the smelting furnace, aligns the front end of the ventilation pipe with and inserts it into the molten aluminum inside the furnace, and utilizes the process of argon gas being introduced to form bubbles that rise to the surface, causing impurities in the melt to float to the top. During this process, the protective baffle is located on the front side of the movable frame, which can largely isolate heat radiation and block splashing molten aluminum.

[0034] The vertical tilt angle of the venting tube can be adjusted. During the process of purging argon gas into the molten aluminum in the smelting furnace, the venting hose can be suspended on a support rod at a certain height to keep the venting tube tilted.

[0035] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from its technical solution shall still fall within the protection scope of this utility model.

Claims

1. A ventilation baffle device for smelting and refining, comprising a movable frame with casters equipped with brakes at the bottom, characterized in that: The movable frame is equipped with a ventilation tube that can be adjusted up, down, left, and right. The front end of the ventilation tube is located at the front of the movable frame, and the rear end of the ventilation tube is connected to a ventilation hose. A protective baffle is fixed on the front side of the movable frame, surrounding the ventilation tube.

2. The ventilation baffle device for smelting and refining according to claim 1, characterized in that: The movable frame is a three-dimensional frame in the shape of an isosceles trapezoid, which is narrower at the top and wider at the bottom. The four casters are respectively installed at the upper left, lower left, upper right, and lower right corners of the movable frame.

3. The ventilation baffle device for casting refining according to claim 1, characterized in that: A horizontal rotating shaft with its axis pointing left and right is installed on the top surface of the front end side of the movable frame. A vertical rotating shaft with its axis perpendicular to the horizontal rotating shaft is installed at the middle position of the horizontal rotating shaft. A mounting base for a ventilated rigid pipe is provided at the top of the vertical rotating shaft.

4. The ventilation baffle device for casting refining according to claim 3, characterized in that: The mounting base consists of a lower base and an upper base, with the lower base fixed to the top of the vertical rotating shaft.

5. The ventilation baffle device for casting refining according to claim 4, characterized in that: The lower seat and the upper seat are both provided with semi-circular notches on their connecting surfaces. The two semi-circular notches form a circular opening for the ventilation tube. The upper seat is locked to the lower seat with bolts and nuts to facilitate clamping the ventilation tube to the opening.

6. The ventilation baffle device for casting refining according to claim 1, characterized in that: The protective baffle includes a left baffle and a right baffle, and the ventilation tube is located between the left and right baffles.

7. The ventilation baffle device for casting refining according to claim 1, characterized in that: A support frame for the ventilation hose is fixed on the top surface of the rear end side of the movable frame.

8. The ventilation baffle device for casting refining according to claim 7, characterized in that: The support frame includes a support frame on which several support rods extending horizontally are evenly distributed vertically.

9. The ventilation baffle device for casting refining according to claim 8, characterized in that: The left ends of the support rods are all fixed to the support frame, and the right ends of the support rods are all suspended and vertically fixed with upward-extending limiting bends.

10. The ventilation baffle device for casting refining according to claim 9, characterized in that: The height of the limiting bend is less than the distance between two adjacent support rods.

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