阅读说明：本技术 一种用于稀土合金的熔炼炉 (Smelting furnace for rare earth alloy ) 是由 姜震宇 郑红英 孙灿平 徐静静 裘剑峰 杨建新 于 2021-08-09 设计创作，主要内容包括：本发明公开了一种用于稀土合金的熔炼炉,包括：一炉体；一坩埚,设置于所述炉体内；一加热组件,设置于所述坩埚上；一真空组件,与所述坩埚连通；一盖板,安装在所述坩埚的顶端；一第一进料管,其底端穿过所述盖板并深入所述坩埚内；一容器,与所述第一进料管的顶端连通。本发明在作业时,可以打开盖板,加入第一批物料。盖上盖板,利用加热组件,对坩埚内的物料进行熔炼。当需要加入第二批物料时,让第二批物料经过容器、第一进料管进入坩埚内。本发明可以将稀土金属原料、非稀土金属原料分开加入坩埚内,这样可以满足两种以上熔点相差较大的金属原料的熔炼。减少稀土损耗。(The invention discloses a smelting furnace for rare earth alloy, which comprises: a furnace body; the crucible is arranged in the furnace body; the heating assembly is arranged on the crucible; a vacuum assembly in communication with the crucible; the cover plate is arranged at the top end of the crucible; a first feeding pipe, the bottom end of which penetrates through the cover plate and penetrates into the crucible; and the container is communicated with the top end of the first feeding pipe. When the invention is in operation, the cover plate can be opened, and the first batch of materials can be added. And covering the cover plate, and smelting the materials in the crucible by using the heating assembly. When a second batch of material needs to be added, the second batch of material enters the crucible through the container and the first feeding pipe. The invention can separately add the rare earth metal raw materials and the non-rare earth metal raw materials into the crucible, thus being capable of meeting the smelting of more than two metal raw materials with larger melting point difference. Reducing the rare earth loss.)

1. A smelting furnace for rare earth alloys, characterized by comprising:

a furnace body;

the crucible is arranged in the furnace body;

the heating assembly is arranged on the crucible;

a vacuum assembly in communication with the crucible;

the cover plate is arranged at the top end of the crucible;

a first feeding pipe, the bottom end of which penetrates through the cover plate and penetrates into the crucible;

and the container is communicated with the top end of the first feeding pipe.

2. The smelting furnace for rare earth alloys according to claim 1, further comprising:

a second feed tube, the bottom end of which is communicated with the container;

a first valve mounted on the first feed line;

a second valve is mounted on the second feed tube.

3. The smelting furnace for rare earth alloys according to claim 1 or 2, wherein the first feeding pipe is rotatably connected with the cover plate;

the smelting furnace also comprises a driving part which is in transmission connection with the smelting furnace.

4. The smelting furnace for rare earth alloys according to claim 3, further comprising a plurality of auxiliary parts distributed in the crucible and located around the first feeding pipe; wherein the auxiliary portion includes:

and the top end of the first connecting pipe is communicated with the bottom end of the first feeding pipe.

5. The smelting furnace for rare earth alloys according to claim 4, wherein the auxiliary section further includes a second connecting pipe arranged substantially in a vertical direction, a top end of which communicates with a bottom end of the first connecting pipe; wherein, be equipped with a plurality of blades on the second connecting pipe.

6. The smelting furnace for rare earth alloys according to claim 5, further comprising a gas supply portion communicating with the second connecting pipe.

7. The smelting furnace for rare earth alloys according to claim 6, wherein the first feeding pipe is provided with communicating holes;

the gas supply portion includes:

an air supply assembly;

the mounting sleeve is rotatably mounted on the first feeding pipe and is communicated with the communicating hole;

and one end of the conduit is communicated with the mounting sleeve, and the other end of the conduit is communicated with the air supply assembly.

8. The smelting furnace for rare earth alloys according to claim 1, wherein a plurality of gas outlet holes are provided in the blades and are communicated with the second connecting pipe.

9. The smelting furnace for rare earth alloys according to claim 1 or 2, characterized by further comprising:

a cooling pipe wound around the crucible and having one end disposed outside the furnace body;

and the liquid supply assembly is communicated with the other end of the cooling pipe.

10. The smelting furnace for rare earth alloys according to claim 9, further comprising an exhaust pipe having one end communicating with an upper portion of the crucible and the other end communicating with the cooling pipe.

Technical Field

The invention relates to the technical field of rare earth alloy production, in particular to a smelting furnace for rare earth alloy.

Background

The galvanized steel sheet can effectively prevent the corrosion of steel and prolong the service life, so the galvanized steel sheet is widely applied to the industries of buildings, automobiles, vehicles, ships and the like. With the development of national economy, especially the rapid development of the automobile industry, the demand of galvanized steel sheets is gradually increased year by year. However, the galvanized surface is easily corroded due to the active chemical property of zinc, and the appearance of the product is seriously affected by the corroded product. To improve the problem that the galvanized surface is easily corroded, rare earth metals can be added into zinc.

The rare earth-zinc alloy has excellent performance and wide application prospect, and in the prior art, all raw materials are generally put into a crucible to be smelted simultaneously. Rare earth has low melting point and is easy to volatilize, so that great loss is caused.

In chinese patent application No.: 201911162474.5 discloses a rare earth alloy melting device, belongs to rare earth alloy melting technical field, including melting case, raw materials broken subassembly, raw materials input subassembly, melting subassembly, shaping cooling module and four supporting legs, it is through four to melt the case the supporting leg is installed subaerial, the top of melting the case is equipped with the hopper that leaks, and the bottom of hopper that leaks extends to melt the incasement, the bottom of hopper that leaks is equipped with the conveyer pipe, raw materials broken subassembly with the raw materials input subassembly all sets up melt the top of case, it sets up to melt the subassembly melt the incasement, shaping cooling module sets up melt the below of case. When the technical scheme is used for smelting, the rare earth loss is large, and needs to be further improved.

Disclosure of Invention

To solve at least one technical problem in the background art, the present invention provides a smelting furnace for rare earth alloys, which is intended to solve at least one technical problem.

The invention provides a smelting furnace for rare earth alloy, which comprises:

a furnace body;

the crucible is arranged in the furnace body;

the heating assembly is arranged on the crucible;

a vacuum assembly in communication with the crucible;

the cover plate is arranged at the top end of the crucible;

a first feeding pipe, the bottom end of which penetrates through the cover plate and penetrates into the crucible;

and the container is communicated with the top end of the first feeding pipe.

Preferably, the smelting furnace further comprises:

a second feed tube, the bottom end of which is communicated with the container;

a first valve mounted on the first feed line;

a second valve is mounted on the second feed tube.

Preferably, the first feeding pipe is rotatably connected with the cover plate;

the smelting furnace also comprises a driving part which is in transmission connection with the smelting furnace.

Preferably, the smelting furnace also comprises a plurality of auxiliary parts which are distributed in the crucible and are positioned at the periphery of the first feeding pipe; wherein the auxiliary portion includes:

and the top end of the first connecting pipe is communicated with the bottom end of the first feeding pipe.

Preferably, the auxiliary portion further includes a second connection pipe arranged substantially in a vertical direction, a top end of which communicates with a bottom end of the first connection pipe; wherein, be equipped with a plurality of blades on the second connecting pipe.

Preferably, the melting furnace further includes a gas supply part communicating with the second connection pipe.

Preferably, a communicating hole is formed in the first feeding pipe;

the gas supply portion includes:

an air supply assembly;

the mounting sleeve is rotatably mounted on the first feeding pipe and is communicated with the communicating hole;

and one end of the conduit is communicated with the mounting sleeve, and the other end of the conduit is communicated with the air supply assembly.

Preferably, the blade is provided with a plurality of air outlet holes, and the air outlet holes are communicated with the second connecting pipe.

Preferably, the smelting furnace further comprises:

a cooling pipe wound around the crucible and having one end disposed outside the furnace body;

and the liquid supply assembly is communicated with the other end of the cooling pipe.

Preferably, the melting furnace further comprises an exhaust pipe having one end communicating with an upper portion of the crucible and the other end communicating with the cooling pipe.

The beneficial effects brought by one aspect of the invention are as follows:

when the invention is in operation, the cover plate can be opened, and the first batch of materials can be added. And covering the cover plate, and smelting the materials in the crucible by using the heating assembly.

When a second batch of material needs to be added, the second batch of material enters the crucible through the container and the first feeding pipe.

The invention can separately add the rare earth metal raw materials and the non-rare earth metal raw materials into the crucible, thus being capable of meeting the smelting of more than two metal raw materials with larger melting point difference. Reducing the rare earth loss.

Drawings

FIG. 1 is a schematic structural view of one aspect of the present disclosure;

FIG. 2 is a cross-sectional view at P of FIG. 1 in accordance with the present disclosure;

FIG. 3 is a top view of a disclosed blade.

Detailed Description

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments in the present application may be combined with each other; 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.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left" and "right", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the positions or elements referred to must have specific orientations, be constructed in specific orientations, and be operated, and thus are not to be construed as limitations of the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Referring to fig. 1 to 3, the present invention provides a melting furnace for rare earth alloys, comprising:

with reference to fig. 1, a furnace body 1; the crucible 2 is arranged in the furnace body 1; a heating element 3, which is conventional, such as a heating wire, disposed on the crucible 2; a vacuum assembly 4, which can be a vacuum pump or the like, is communicated with the crucible 2 and carries out vacuum treatment on the crucible 2 before operation; a cover plate 5 installed on the top end of the crucible 2; a first feeding pipe 6, the bottom end of which penetrates through the cover plate 5 and penetrates into the crucible 2; a container 7 communicating with the top end of the first feeding pipe 6.

As a further improvement of the above embodiment, in one embodiment, to avoid oxygen ingress during charging of the material, the smelting furnace further comprises:

a second feeding pipe 8, the bottom end of which is communicated with the container 7; a first valve 9 mounted on said first feeding pipe 6; a second valve 10 is mounted on the second feed pipe 8. A hopper 21 may be installed at the top end of the second feeding pipe 8 to facilitate the material entering.

In operation, the cover 5 may be opened and the first batch may be added. The cover plate 5 is covered, the first valve 9 and the second valve 10 are closed, and the materials in the crucible 2 are smelted by the heating assembly 3.

When it is desired to add a second batch, the second valve 10 is opened to allow the second batch to enter the container 7 through the second feed line 8, after filling. The second valve 10 is closed. The first valve 9 is then opened to allow the second batch to enter the crucible 2. The first valve 9 is then closed.

The above operation can be carried out by adding the materials in portions. Meanwhile, the oxygen is reduced when the materials are added.

As a further improvement of the above embodiment, in one embodiment, the first feeding pipe 6 is rotatably connected to the cover plate 5; the smelting furnace also comprises a driving part 11, and the driving part 11 is in transmission connection with the smelting furnace. The driving part 11 can be a motor, a belt, etc., and the motor and the belt are used for driving the first feeding pipe 6 to rotate. The subsequent materials are dispersed, and the mixture is convenient to mix. The smelting uniformity is improved.

The container 7 can be removably connected to the first feeding duct 6. After the addition of the material, the container is removed. Does not need to rotate along with the first feeding pipe 6, thereby reducing the energy consumption.

As a further refinement of the above-described embodiments, in one implementation,

the smelting furnace also comprises a plurality of auxiliary parts which are distributed in the crucible 2 and are positioned at the periphery of the first feeding pipe 6; wherein the auxiliary portion includes: a first connecting pipe 12, which is arranged obliquely and whose top end communicates with the bottom end of the first feeding pipe 6.

The material enters the crucible 2 through the first feed pipe 6 and the first connecting pipe 12. The first feeding pipe 6 and the first connecting pipe 12 are driven by the driving part 11 to rotate continuously, so that the materials are distributed uniformly, and the smelting effect is improved.

As a further refinement of the above-described embodiments, in one implementation,

the auxiliary portion further includes a second connection pipe 13 arranged substantially in a vertical direction, a top end of which communicates with a bottom end of the first connection pipe 12; wherein, a plurality of blades 14 are arranged on the second connecting pipe 13. The material enters the crucible 2 through the first connecting pipe 12 and the second connecting pipe 13. Through setting up blade 14, utilize second connecting pipe 13 to drive blade 14 and rotate, improve material mixing homogeneity.

As a further improvement of the above embodiment, in one embodiment, the melting furnace further includes a gas supply portion communicating with the second connection pipe 13. An inert gas is introduced into the second connecting pipe 13 and the crucible 2 by the gas supply unit. The melted alloy can be blown by gas, and the mixing uniformity is improved.

As a further improvement of the above embodiment, in one embodiment, the first feeding pipe 6 is provided with a communicating hole 7.

The gas supply portion includes:

a gas supply assembly 15; a mounting sleeve 16 which is rotatably mounted on the first feeding pipe 6 and is communicated with the communicating hole 7; a conduit 17 having one end communicating with the mounting sleeve 16 and the other end communicating with the gas supply assembly 15.

The gas supply assembly 15 supplies gas, which enters the first feeding pipe 6 through the guide pipe 17, the mounting sleeve 16 and the communication hole 7, and then enters the crucible 2 through the first connecting pipe 12 and the second connecting pipe 13. Blowing the melted material by using gas.

In the present application, the first feeding pipe 6 rotates, so that the mounting sleeve 16 can not rotate, and the guide pipe 17 is prevented from being wound on the first feeding pipe 6.

In the present application, the first feeding pipe 6, the first connecting pipe 12, the second connecting pipe 13, etc. can convey both materials and gases. Multiple functions, effectively simplified structure and reduced cost.

As a further improvement of the above embodiment, in one embodiment, the vane 14 is provided with a plurality of air outlet holes, and the air outlet holes are communicated with the second connecting pipe 13. The gas is discharged through the gas outlet, so that the melted materials are effectively blown, and the smelting uniformity is improved.

As a further refinement of the above-described embodiments, in one implementation,

the smelting furnace also includes:

a cooling pipe 18 wound around the crucible 2 with one end thereof placed outside the furnace body 1; a liquid supply assembly 19 is in communication with the other end of the cooling tube 18, such as may be in communication with the top end thereof. After the operation, the crucible 2 is cooled by introducing water into the cooling pipe 18 by the liquid supply unit 19. The preheat is recycled.

As a further improvement of the above embodiment, in one embodiment, the melting furnace further includes a gas exhaust pipe 20 having one end communicating with the upper portion of the crucible 2 and the other end communicating with the cooling pipe 18.

The waste gas generated by the reaction in the crucible 2 enters the cooling tube 18 through the exhaust tube 20 and is exhausted along with the cooling tube 18. And (4) cooling and filtering the waste gas by using water.

The exhaust pipe 20 may be provided with a plurality of exhaust holes 2001, and the plurality of exhaust holes 2001 may be communicated with different positions of the cooling pipe 18. The waste gas is treated by the convenient water, and the efficiency is improved.

If the pressure in the crucible 2 is small and the exhaust gas cannot be exhausted, an air pump can be installed on the exhaust pipe 20 to facilitate the exhaust gas exhaust.

In the present application, the material may be added in portions. The cover plate is opened first and the first batch of material is added. And closing the cover plate, and melting the first batch of materials.

Then, the second valve is opened and a second batch of material is added. The second valve is closed and the first valve is opened to allow the second batch of material to enter. The first valve is closed.

When the material enters, the driving part can be utilized to drive the first feeding pipe to rotate, so that the material is uniformly mixed.

After the materials are added, gas is introduced by the gas supply part, so that the materials are mixed more uniformly, and the smelting quality is improved.

The generated waste gas is processed and discharged in time through the exhaust pipe and the cooling pipe.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.