CN215615093U

CN215615093U - Tundish for inert gas protection in metal powder preparation process

Info

Publication number: CN215615093U
Application number: CN202122134130.2U
Authority: CN
Inventors: 黄莹祥
Original assignee: Quanzhou Xinhang New Material Technology Co ltd
Current assignee: Quanzhou Xinhang New Material Technology Co ltd
Priority date: 2021-09-06
Filing date: 2021-09-06
Publication date: 2022-01-25
Anticipated expiration: 2031-09-06

Abstract

The utility model discloses a leaky ladle for preparing metal powder under the protection of inert gas, which comprises the following steps: a liquid tank; a cover plate is fixed at the upper end of the liquid tank through a bolt, a middle ladle is fixed at the upper end of the liquid tank, and a spray disc is embedded at the lower end of the liquid tank; and the inert gas component is arranged in the inner cavity of the liquid tank. In the utility model, the liquid tank can store the molten metal at a certain liquid level, the inert gas can be sent into the guide pipe through the gas inlet pipe, and then the inert gas is discharged through the plurality of exhaust valves to be contacted with the molten metal, so that the inert gas protection and the waste heat are carried out on the molten metal, the gas is sent into the molten metal, the phenomenon that the gas is contacted with the surface of the molten metal in the past is changed, the oxygen in the molten metal can be extruded, the inert gas sent into the liquid protects the molten metal from being oxidized, the oxygen content of a product is reduced, the purity is improved, when the molten metal in the tundish enters the liquid tank, the liquid flow can extrude the rotating plate to rotate the guide pipe, the molten metal in the liquid tank is stirred, and the solidification of the molten metal can be prevented again.

Description

Tundish for inert gas protection in metal powder preparation process

Technical Field

The utility model relates to the technical field of metal powder manufacturing equipment, in particular to a leaky ladle for preparing metal powder under the protection of inert gas.

Background

In the process technology for producing powder by an atomization method, gas or water is adopted for atomization, in order to control the flowing of molten liquid at the center of a nozzle, a middle leakage ladle is adopted to control the diameter of the molten liquid flowing at the center of the nozzle, the temperature of the molten metal in the leakage ladle is gradually reduced along with time before the molten metal atomizes the powder, so that the molten metal is gradually solidified, and the molten metal needs to be protected and preheated by high-temperature inert gas to prevent the solid state and oxidation of the molten metal.

In the using process of the conventional skip ladle for preparing metal powder for inert gas protection, although inert gas is used for protecting metal liquid and waste heat, the inert gas can only contact the surface of the metal liquid, so that the preheating and oxygen discharging effects of the metal liquid are poor, and the metal liquid passes through the skip ladle.

To this end, we propose a breakout ladle for inert gas shielding in the process of preparing metal powder to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a leaky ladle for preparing metal powder for inert gas protection, which solves the problems that although inert gas is used for protecting metal liquid and waste heat is generated in the conventional leaky ladle for preparing metal powder for inert gas protection, the inert gas can only contact the surface of the metal liquid, so that the preheating and oxygen discharging effects of the metal liquid are poor, and the metal liquid passes through the leaky ladle.

In order to achieve the purpose, the utility model provides the following technical scheme:

a tundish for use in a process for preparing metal powder for inert gas shielding, comprising: a liquid tank; a cover plate is fixed at the upper end of the liquid tank through a bolt, a middle ladle is fixed at the upper end of the liquid tank, and a spray disc is embedded at the lower end of the liquid tank; the device comprises a liquid tank, an inert gas assembly, a first bearing and a second bearing, wherein the liquid tank is arranged in the liquid tank, the inert gas assembly is arranged in an inner cavity of the liquid tank and comprises a guide pipe transversely sleeved in the inner cavity of the liquid tank, three rotating plates are embedded on the surface of the guide pipe at equal intervals, a plurality of exhaust valves are arranged on the surfaces of the three rotating plates at equal intervals, the two sides of the liquid tank are embedded with the first bearing, and the surfaces of the two sides of the guide pipe are respectively sleeved with the first sealing rubber ring; and the air inlet assembly is arranged on one side of the inert gas assembly.

In a further embodiment, two exhaust pipes are inserted into the cover plate, and the output ends of the two exhaust pipes are fixed with return pipes, so that the exhaust pipes can send inert gas into the return pipes, and the return pipes are sent back to the inert gas recovery box.

In a further embodiment, the first bearing rotating end is fixed to the surface of the conduit for rotating the conduit in the tank so that the conduit can rotate in the tank.

In a further embodiment, the two first sealing rubber rings are respectively connected with two sides of the inner cavity of the liquid tank in an embedded mode and used for sealing a sleeving gap between the guide pipe and the liquid tank, so that the first sealing rubber rings can be used for sewing the liquid tank to cause the liquid overflow.

In a further embodiment, the intake assembly comprises: the sleeve is fixed at the input end of the catheter, a second bearing is sleeved in the inner cavity of the sleeve, an air inlet pipe is sleeved at the rotating end of the second bearing, and a second sealing rubber ring is sleeved between the sleeve and the surface of the air inlet pipe; and the two sleeve plates are fixed on the surface of the sleeve, the inner cavity of each sleeve plate is sleeved with an L-shaped rod, the inner threads of the L-shaped rods are meshed with a screw rod, and the extended end of the screw rod is fixed with a pressing plate, so that the screw rod is rotated to drive the pressing plate to extrude the second sealing rubber ring.

In a further embodiment, the pressing plate is arranged opposite to the second sealing rubber ring and used for fixing the second sealing rubber ring in the sleeve, so that the second sealing rubber ring can block the sleeve from air leakage.

In a further embodiment, the output end of the gas inlet pipe is arranged opposite to the input end of the conduit and is used for melting the inert gas into the conduit, so that the inert gas can be fed into the molten metal.

Compared with the prior art, the utility model has the beneficial effects that:

in the utility model, the liquid tank can store the molten metal at a certain liquid level, the inert gas can be sent into the guide pipe through the gas inlet pipe, and then the inert gas is discharged through the plurality of exhaust valves to be contacted with the molten metal, so that the inert gas protection and the waste heat are carried out on the molten metal, the gas is sent into the molten metal, the phenomenon that the gas is contacted with the surface of the molten metal in the past is changed, the oxygen in the molten metal can be extruded, the inert gas sent into the liquid protects the molten metal from being oxidized, the oxygen content of a product is reduced, the purity is improved, when the molten metal in the tundish enters the liquid tank, the liquid flow can extrude the rotating plate to rotate the guide pipe, the molten metal in the liquid tank is stirred, and the solidification of the molten metal can be prevented again.

Drawings

FIG. 1 is a schematic perspective view of a tundish used in a process of preparing metal powder for inert gas shielding;

FIG. 2 is a schematic side view of a liquid tank according to the present invention;

FIG. 3 is a side view of a catheter according to the present invention;

FIG. 4 is an enlarged schematic view of the structure at A in FIG. 3;

fig. 5 is a schematic structural view of an intake assembly according to the present invention.

In the figure: 1. a liquid tank; 2. a cover plate; 3. a middle package; 4. spraying a disc; 5. an exhaust pipe; 6. an inert gas assembly; 601. a conduit; 602. rotating the plate; 603. an exhaust valve; 604. a first bearing; 605. a first sealing rubber ring; 7. an air intake assembly; 701. a sleeve; 702. a second bearing; 703. an air inlet pipe; 704. a second sealing rubber ring; 705. sheathing; 706. an L-shaped rod; 707. a screw; 708. pressing a plate; 8. and (4) an air return pipe.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, 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.

Example 1

Referring to fig. 1-5, in an embodiment of the present invention, a breakout package for inert gas shielding in a process of preparing metal powder includes: a liquid tank 1; a cover plate 2 is fixed at the upper end of the liquid tank 1 through bolts, a middle ladle 3 is fixed at the upper end of the liquid tank 1, and a spray disc 4 is embedded at the lower end of the liquid tank 1; the inert gas component 6 is arranged in the inner cavity of the liquid tank 1, the inert gas component 6 comprises a guide pipe 601 transversely sleeved in the inner cavity of the liquid tank 1, three rotating plates 602 are embedded on the surface of the guide pipe 601 at equal intervals, a plurality of exhaust valves 603 are arranged on the surfaces of the three rotating plates 602 at equal intervals, first bearings 604 are embedded on two sides of the liquid tank 1, and first sealing rubber rings 605 are respectively sleeved on the surfaces of two sides of the guide pipe 601; and locate the air inlet assembly 7 of inert gas subassembly 6 one side, the inside gomphosis of running through of apron 2 has two blast pipes 5, two blast pipe 5 output ends are fixed with muffler 8, first bearing 604 rotates the end and pipe 601 surface fixity, be used for making its pipe 601 rotate at liquid box 1, two first sealing rubber ring 605 are connected with the gomphosis of liquid box 1 inner chamber both sides respectively, be used for the sealed pipe 601 and the cup joint gap of liquid box 1, the input of intake pipe 703 is connected with inert gas storage device, can send inert gas to in the pipe 601, when package 3 sends the metal liquid into liquid box 1, store the metal liquid of certain liquid level in the liquid box 1, when the metal liquid gets into in spouting dish 4, the liquid in the liquid box 1 flows downwards, thereby can drive and rotate rotor 602.

Example 2

Referring to fig. 5, unlike embodiment 1, the intake assembly 7 includes: a sleeve 701 fixed at the input end of the conduit 601, a second bearing 702 is sleeved in the inner cavity of the sleeve 701, an air inlet pipe 703 is sleeved at the rotating end of the second bearing 702, and a second sealing rubber ring 704 is sleeved between the sleeve 701 and the surface of the air inlet pipe 703; and two sleeve plates 705 fixed on the surface of the sleeve 701, an L-shaped rod 706 is sleeved in an inner cavity of the sleeve plate 705, a screw 707 is engaged with the inner thread of the L-shaped rod 706, a pressure plate 708 is fixed at the extended end of the screw 707, the pressure plate 708 is arranged opposite to the second sealing rubber ring 704 and is used for fixing the second sealing rubber ring 704 in the sleeve 701, the output end of the air inlet pipe 703 is arranged opposite to the input end of the conduit 601 and is used for melting inert gas into the conduit 601, when the conduit 601 rotates under the influence of liquid flow, a bearing is arranged between the sleeve 701 and the air inlet pipe 703 to keep the air inlet pipe 703 unrotatable, a connecting gap between the sleeve 701 and the air inlet pipe 703 is blocked by the second sealing rubber ring 704 to prevent the inert gas from leaking, the pressure plate 704 can be driven to move downwards by rotating the screw 707, and the pressure plate 708 can fix the second sealing rubber ring in the sleeve 701.

The working principle of the utility model is as follows: referring to fig. 1-5, firstly, the inert gas in the inert gas storage device is sent to the conduit 601 through the gas inlet pipe 703, and is sent to the chamber of the rotating plate 602, and is discharged into the liquid tank 1 through a plurality of exhaust valves 603 installed on the surface of the rotating plate 602, at this time, the output end of the tundish 3 is opened, the molten metal is sent to the liquid tank 1, after the liquid level in the liquid tank 1 reaches a proper position, the output end of the spray plate 4 is opened, so that the molten metal enters the spray plate 4 for atomization operation, and at the same time, when the liquid at the output end of the tundish 3 flows into the liquid tank 1, the rotating plate 602 near the molten metal end is forced downward, so that the conduit 601 rotates through the first bearing 604, so that the three rotating plates 602 are continuously rotated by the impact of the molten metal in the liquid tank 1, the exhaust valves 603 on the surface of the rotating plates 602 discharge the inert gas into the molten metal, so that the oxygen in the molten metal is extruded and discharged, and the oxygen content in the molten metal is reduced, the inert gas protects the metal liquid flow from being oxidized, the inert gas discharged from the metal liquid is sent into the air return pipe 8 through the two exhaust pipes 5 and then sent back into the inert gas storage device through the air return pipe 8 to form an inert gas circulation, and therefore a series of work is completed.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A tundish for use in a process for producing metal powder for inert gas shielding, comprising:

a liquid tank (1);

a cover plate (2) is fixed at the upper end of the liquid tank (1) through a bolt, a tundish (3) is fixed at the upper end of the liquid tank (1), and a spray disc (4) is embedded at the lower end of the liquid tank (1);

the inert gas component (6) is arranged in the inner cavity of the liquid tank (1), the inert gas component (6) comprises a guide pipe (601) which is transversely sleeved in the inner cavity of the liquid tank (1), three rotating plates (602) are embedded on the surface of the guide pipe (601) at equal intervals, a plurality of exhaust valves (603) are arranged on the surfaces of the three rotating plates (602) at equal intervals, first bearings (604) are embedded on two sides of the liquid tank (1), and first sealing rubber rings (605) are respectively sleeved on the surfaces of two sides of the guide pipe (601); and

and the air inlet assembly (7) is arranged on one side of the inert gas assembly (6).

2. The tundish for inert gas shielding in the process of preparing metal powder according to claim 1, wherein two exhaust pipes (5) are inserted into the cover plate (2), and an air return pipe (8) is fixed at the output ends of the two exhaust pipes (5).

3. A tundish in a process for inert gas shielding of metal powder according to claim 1, wherein the rotating end of the first bearing (604) is fixed to the surface of the conduit (601) for rotating the conduit (601) in the tank (1).

4. The leaky ladle for inert gas shielding in the process of preparing metal powder as claimed in claim 1, wherein two first sealing rubber rings (605) are respectively connected with two sides of the inner cavity of the liquid tank (1) in an embedded manner and used for sealing a sleeving gap between the guide pipe (601) and the liquid tank (1).

5. A tundish for an inert gas shield in a process for producing metal powder according to claim 1, wherein the gas inlet assembly (7) comprises:

the sleeve (701) is fixed at the input end of the conduit (601), a second bearing (702) is sleeved in the inner cavity of the sleeve (701), an air inlet pipe (703) is sleeved at the rotating end of the second bearing (702), and a second sealing rubber ring (704) is sleeved between the sleeve (701) and the surface of the air inlet pipe (703); and

the device comprises two sleeve plates (705) fixed on the surface of the sleeve (701), an L-shaped rod (706) is sleeved in an inner cavity of each sleeve plate (705), a screw rod (707) is meshed with the inner threads of each L-shaped rod (706), and a pressure plate (708) is fixed at the extending end of each screw rod (707).

6. The tundish for inert gas shielding in a process of manufacturing metal powder according to claim 5, wherein the pressure plate (708) is disposed opposite to the second sealant ring (704) for fixing the second sealant ring (704) in the sleeve (701).

7. The tundish for inert gas shielding in a process of manufacturing metal powder according to claim 5, wherein the outlet end of the gas inlet pipe (703) is disposed opposite to the inlet end of the conduit (601) for introducing inert gas into the conduit (601).