Combined type alloy smelting refining furnace lining structure and smelting refining furnace

Abstract

The utility model relates to the technical field of metallurgy, and discloses a combined alloy smelting refining furnace lining structure and a smelting refining furnace, the combined alloy smelting refining furnace lining structure comprises a furnace body, a permanent layer, a recycled material filling layer and a working layer, the furnace body comprises a furnace bottom layer, a furnace body layer and a slag stopping layer which are detachably connected; the permanent layer is arranged on the inner side of the furnace body; the recycled material filling layer is arranged on the inner side of the permanent layer and is integrally positioned on the furnace body layer and the furnace bottom layer; the working layer is arranged on the inner side of the recycled material filling layer and integrally located on the furnace body layer and the furnace bottom layer. The device is lower in cost, simpler and more reliable in structure, more convenient to operate, free of residues in the furnace, capable of rapidly switching different varieties, free of impurity elements in the process, capable of achieving complete recycling of refractory materials, more environmentally friendly and stable in process.

Description

Technical Field

[0001] This utility model relates to the field of metallurgical technology, and in particular to a combined alloy smelting and refining furnace lining structure and a smelting and refining furnace. Background Technology

[0002] It is usually difficult to achieve high-quality product requirements in one step during the smelting process. It is necessary to refine and remove impurities from the preliminary smelting products to improve the quality of the final product.

[0003] CN213811687U discloses a refining furnace for Barbie alloy wire in melting and processing. This patent involves manual feeding, resulting in high labor intensity for workers, low feeding efficiency, and the inability to crush materials, leading to slow and ineffective melting of large pieces within the refining furnace, thus reducing production efficiency. CN102425938B discloses a vacuum refining furnace for non-ferrous metal multi-alloys, including a refining furnace body, graphite heating element, electrodes, and a sealed furnace shell. However, this device is costly and cannot achieve integrated smelting and refining. In summary, existing technologies typically involve smelting and refining within different equipment. Furnaces operating within a single unit are generally tiltable, requiring complex and expensive tilting mechanisms to support refining operations, resulting in high equipment costs and high furnace repair and maintenance costs.

[0004] Therefore, there is a need for improvements to the existing combined alloy smelting and refining furnace. Utility Model Content

[0005] In view of this, the purpose of this utility model embodiment is to propose a combined alloy smelting and refining furnace lining structure and smelting and refining furnace. This utility model has lower cost, simpler and more reliable structure, more convenient operation, no residue in the furnace, can quickly switch between different varieties, does not introduce impurity elements in the process, and the refractory material can be completely recycled, making it more environmentally friendly and the process stable.

[0006] To achieve the above objectives, this utility model provides a combined alloy smelting and refining furnace lining structure, comprising:

[0007] The furnace body includes a detachably connected furnace bottom layer, furnace body layer, and slag-blocking layer;

[0008] A permanent layer is installed on the inner side of the furnace body;

[0009] The recycled material filling layer is located inside the permanent layer and is situated as a whole in the furnace body layer and the furnace bottom layer;

[0010] The working layer is located inside the recycled material filling layer and is situated entirely within the furnace body layer and the furnace bottom layer; and

[0011] The slag discharge pipe runs through the furnace body, permanent layer, recycled material filling layer and working layer to connect the inside and outside of the furnace.

[0012] In some implementations, the permanent layer includes a permanent layer at the furnace bottom, a permanent layer in the furnace body, and a permanent layer for the slag retaining ring.

[0013] In some implementations, the permanent layer is cast from refractory material.

[0014] In some embodiments, the furnace body is a circular steel furnace, and the bottom layer, the furnace body layer, and the slag-blocking layer are detachably connected by a flange structure.

[0015] In some embodiments, the slag discharge pipe is inclined, and the angle between the axis of the slag discharge pipe and the vertical direction is 70~80°.

[0016] In some implementations, the working layer is a corundum working layer, which is formed by knotting refractory materials.

[0017] In some embodiments, multiple lifting lugs are provided on the outside of the furnace body, and the multiple lifting lugs are symmetrically distributed on the furnace body.

[0018] In some embodiments, a base is provided at the bottom of the furnace body, and the base is welded to the furnace body.

[0019] In some implementations, the furnace body, permanent layer, recycled material filling layer, and working layer are arranged coaxially.

[0020] In another aspect, this utility model also provides a combined alloy smelting and refining furnace, including the combined alloy smelting and refining furnace lining as described above.

[0021] This utility model has at least the following beneficial technical effects:

[0022] This utility model's combined smelting and refining furnace effectively shortens the process flow and reduces the introduction of impurities. It is safe, reliable, easy to operate, and ingeniously designed. The furnace body is manufactured using a segmented prefabrication and combined preparation method, shortening the manufacturing cycle and improving production efficiency. Molds are made from materials with the same alloy composition, such as aluminum foil, and the furnace lining is made from pure filler material or smelting slag. This ensures no impurities are introduced during production, guaranteeing product quality. The filler material can be reused, and the manufacturing process generates virtually no waste, achieving cost savings and clean production. The filler material after smelting remains a loose, powdery refractory material, making furnace disassembly convenient and reducing labor intensity. The refractory material used for filling can be slag produced during smelting, reducing impurity contamination and achieving waste recycling. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other embodiments can be obtained based on these drawings without creative effort.

[0024] Figure 1 A schematic diagram of an embodiment of the combined alloy smelting and refining furnace lining structure provided by this utility model.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1. Furnace body; 2. Furnace bottom permanent layer; 3. Furnace body permanent layer; 4. Slag retaining ring permanent layer; 5. Recycled material filling layer; 6. Working layer; 7. Slag discharge pipe; 8. Lifting lug. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be further described in detail below with reference to specific examples and accompanying drawings.

[0028] Unless otherwise defined, 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 invention pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. For example, terms such as “length,” “width,” “upper,” “lower,” “left,” “right,” “front,” “rear,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer” indicate orientations or positions based on the orientations or positions shown in the accompanying drawings and are merely for ease of description and should not be construed as limiting the invention.

[0029] The terms "comprising" and "having," and any variations thereof, in the specification, claims, and accompanying drawings of this utility model are intended to cover non-exclusive inclusion; the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish different objects, not to describe a specific order. "A plurality of" means two or more, unless otherwise explicitly specified.

[0030] In the description, claims, and accompanying drawings of this utility model, when an element is referred to as "fixed to," "mounted to," "set on," or "connected to" another element, it can be directly or indirectly located on that other element. For example, when an element is referred to as "connected to" another element, it can be directly or indirectly connected to that other element.

[0031] Furthermore, the reference to "embodiment" herein means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the present invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0032] like Figure 1 The diagram shown is a schematic representation of an embodiment of the combined alloy smelting and refining furnace lining structure provided by this utility model, including:

[0033] Furnace body 1, which includes a detachably connected furnace bottom layer, furnace body layer and slag-blocking layer;

[0034] The permanent layer is set on the inner side of the furnace body. The permanent layer includes the furnace bottom permanent layer 2, the furnace body permanent layer 3, and the slag retaining ring permanent layer 4.

[0035] The recycled material filling layer 5 is located inside the permanent layer and is situated as a whole in the furnace body layer and the furnace bottom layer.

[0036] Working layer 6 is located inside the recycled material filling layer 5 and is situated entirely within the furnace body layer and the furnace bottom layer; and

[0037] The slag discharge pipe 7 runs through the furnace body 1, the permanent layer (furnace body permanent layer 3), the recycled material filling layer 5, and the working layer 6 to connect the space inside and outside the furnace.

[0038] Furthermore, the permanent layer is formed by casting refractory material.

[0039] Furthermore, the furnace body 1 is a circular steel furnace, and the bottom layer, the furnace body layer, and the slag-blocking layer are detachably connected by a flange structure. The refractory material used in this furnace body can be corundum (Al2O3>98%).

[0040] Furthermore, the slag discharge pipe 7 is inclined, and the angle between the axis of the slag discharge pipe and the vertical direction is 70~80°.

[0041] Furthermore, working layer 6 is a corundum working layer, which is formed by knotting refractory materials. The knotted working layer is fixed to the furnace body using molds, and the refractory material is added and compacted to achieve the structure of the refractory layer inside the furnace. Alternatively, it can be prefabricated in sections as needed and then assembled into the entire furnace body. After the smelting furnace is naturally cooled in the cooling zone, the furnace body and bottom are disassembled. The alloy ingots deposited at the bottom are sent for processing into finished products. The furnace lining material from the dismantling furnace is recycled and crushed for use as filler material in the next furnace preparation. The slag obtained from smelting is cleaned, crushed into qualified particle size, and used to replenish the refractory material lost during the smelting process. Excess corundum slag can be processed and sold as refractory material, realizing the comprehensive utilization of solid waste metallurgical slag.

[0042] Furthermore, multiple lifting lugs 8 are provided on the outer side of the furnace body 1, and the multiple lifting lugs 8 are symmetrically distributed on the furnace body, such as... Figure 1 As shown, four lifting lugs are provided on the outside of the furnace body 1, with two lugs symmetrically distributed in a group on the slag baffle ring and the furnace body layer, so that the hanging device can hook the furnace body through the lifting lugs.

[0043] Furthermore, a base is provided at the bottom of the furnace body 1, and the base is welded to the furnace body.

[0044] Furthermore, the furnace body, permanent layer, recycled material filling layer, and working layer are arranged coaxially.

[0045] In another aspect, this utility model also provides a combined smelting and refining furnace having the above-mentioned furnace lining structure.

[0046] The method of using the combined smelting and refining furnace provided by this utility model is as follows: the prepared materials react in the furnace body to produce high-temperature liquid slag and high-temperature molten alloy liquid. During the process, an electric arc furnace can be equipped to heat the materials in the furnace, accelerate the reaction and ensure sufficient slag-metal separation. After the furnace charge has reacted completely, after a period of settling and slag-metal separation, the liquid smelting slag focuses on the upper part of the furnace body, and the liquid metal (alloy) liquid focuses on the lower part of the furnace body. The slag outlet located on the upper part of the metal (alloy) liquid is opened to release the smelting slag, and then the slag outlet is sealed. The refined material is added into the furnace for refining and impurity removal. After refining is completed, the entire furnace body is cooled in the cooling zone. After cooling, the furnace body is disassembled, the metal (alloy) product is taken out, and the furnace body is reassembled for the next batch of smelting and refining.

[0047] This method effectively shortens the process flow and reduces the introduction of impurities. This invention is safe, reliable, easy to operate, and ingeniously conceived. The furnace body is manufactured using a segmented prefabrication and assembly method, shortening the manufacturing cycle and improving production efficiency. Molds are made from materials with the same alloy composition, such as aluminum foil, and the furnace lining is made from pure filler material or smelting slag. This ensures no impurities are introduced during production, guaranteeing product quality. The filler material can be reused, and the manufacturing process generates virtually no waste, achieving cost savings and clean production. The smelted filler material remains a loose, powdery refractory material, making furnace disassembly convenient and reducing labor intensity. The refractory material used for filling can be slag produced during smelting, reducing impurity contamination and achieving waste recycling.

[0048] Compared with existing technologies, this invention has lower cost, simpler and more reliable structure, more convenient operation, no residue in the furnace, allows for quick switching between different varieties, does not introduce impurities during the process, and the refractory material can be completely recycled, making it more environmentally friendly and the process stable.

[0049] This invention is simple to operate and is of great significance in improving the on-site environment, increasing production efficiency, ensuring product quality, and reducing labor intensity and production costs. It provides strong process equipment support for enterprises' strategic policy of "reducing costs and increasing efficiency, and achieving high-efficiency production," thereby greatly enhancing their market competitiveness. This invention will have a significant promoting effect on related fields both within and outside the metallurgical industry, and even abroad. It is conducive to improving the quality and reducing the cost of metal materials products and has positive significance for the production and application of high-end materials in my country.

[0050] The above are exemplary embodiments disclosed in this utility model. However, it should be noted that various changes and modifications can be made without departing from the scope of the embodiments of this utility model as defined by the claims. The functions, steps, and / or actions of the methods according to the disclosed embodiments described herein do not need to be performed in any particular order. Furthermore, although the elements disclosed in the embodiments of this utility model may be described or claimed individually, they may be understood as multiple unless explicitly limited to a singular number.

[0051] It should be understood that, as used herein, the singular form “a” is intended to include the plural form as well, unless the context clearly supports an exception. It should also be understood that, as used herein, “and / or” refers to any and all possible combinations of one or more of the associated listed items.

[0052] The embodiment numbers disclosed in the above-described embodiments of the present utility model are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0053] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Within the framework of the present invention, technical features of the above embodiments or different embodiments can also be combined, and many other variations of different aspects of the present invention exist, which are not provided in the details for the sake of brevity. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A composite alloy smelting and refining furnace lining structure, characterized in that, include: The furnace body includes a detachably connected furnace bottom layer, furnace body layer, and slag-blocking layer; A permanent layer is disposed on the inner side of the furnace body; A recycled material filling layer is disposed inside the permanent layer and is located entirely within the furnace body layer and the furnace bottom layer; A working layer, wherein the working layer is disposed inside the recycled material filling layer and is integrally located within the furnace body layer and the furnace bottom layer; and The slag discharge pipe runs through the furnace body, the permanent layer, the recycled material filling layer, and the working layer to connect the interior and exterior spaces of the furnace.

2. The combined alloy smelting and refining furnace lining structure according to claim 1, characterized in that, The permanent layers include the furnace bottom permanent layer, the furnace body permanent layer, and the slag retaining ring permanent layer.

3. The combined alloy smelting and refining furnace lining structure according to claim 1, characterized in that, The permanent layer is formed by casting refractory material.

4. The combined alloy smelting and refining furnace lining structure according to claim 1, characterized in that, The furnace body is a circular steel furnace, and the bottom layer, the furnace body layer, and the slag-blocking layer are detachably connected by a flange structure.

5. The combined alloy smelting and refining furnace lining structure according to claim 1, characterized in that, The slag discharge pipe is inclined, and the angle between the axis of the slag discharge pipe and the vertical direction is 70~80°.

6. The combined alloy smelting and refining furnace lining structure according to claim 1, characterized in that, The working layer is a corundum working layer, which is made of refractory material knotted together.

7. The combined alloy smelting and refining furnace lining structure according to claim 1, characterized in that, The furnace body is provided with multiple lifting lugs on its outer side, and the multiple lifting lugs are symmetrically distributed on the furnace body.

8. The combined alloy smelting and refining furnace lining structure according to claim 1, characterized in that, A base is provided at the bottom of the furnace body, and the base is welded to the furnace body.

9. The combined alloy smelting and refining furnace lining structure according to claim 1, characterized in that, The furnace body, permanent layer, recycled material filling layer, and working layer are arranged coaxially.

10. A combined alloy smelting and refining furnace, characterized in that, Includes the combined alloy smelting and refining furnace lining structure as described in any one of claims 1 to 9.

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