A steel disc for a melting chamber

Abstract

The utility model relates to a kind of steel disc of smelting chamber, belong to the safety protection technical field of industrial smelting equipment.The steel disc aims to solve the problem of difficult replacement of existing technology, poor heat protection effect.The main technical scheme includes: disc body, upper surface is equipped with the groove structure for preventing molten metal liquid flow and spatter;Handle, set in the upper portion of the disc body, facilitate replacement operation;And cylindrical welding part, fixedly connected to the lower surface of the disc body, for increasing overall structure to block heat downward transmission.The utility model realizes the quick, safe replacement of steel disc by the above structure optimization, and significantly improves the safety protection performance when smelting chamber accident occurs, with the advantages of simple structure, safe and reliable, strong practicality.

Description

Technical Field

[0001] This utility model relates to the field of safety protection technology for industrial smelting equipment, and in particular to a steel receiving tray for a smelting chamber. Specifically, it relates to a safety device for a steel receiving tray for a vacuum smelting furnace, especially an equiaxed crystal vacuum precision casting furnace. Background Technology

[0002] During the vacuum melting process of metallic materials, especially in the equiaxed crystal vacuum precision casting process, the crucible containing molten metal may crack due to thermal stress, material fatigue, or accidental impact. Once cracked, the high-temperature molten metal will leak to the bottom of the melting chamber. If not protected, it will damage the delicate vacuum system, water cooling system, or other support equipment below, resulting in huge economic losses and prolonged production interruptions, and even causing safety accidents.

[0003] As the last physical barrier against such accidents, the molten metal receiving tray is placed at the bottom of the melting chamber, directly below the crucible. Its core function is to catch the leaking high-temperature molten metal in the event of a crucible rupture, preventing it from directly impacting and burning critical equipment below. However, the molten metal receiving trays currently widely used in the industry have significant drawbacks: The existing fixing methods are outdated and replacement is extremely difficult: Most steel receiving trays are fixed by direct welding to the furnace body or by rigid connection using a large number of ordinary bolts. When the receiving tray is damaged due to receiving high-temperature molten metal or requires routine inspection, operators must enter the narrow, high-temperature furnace bottom space where residual contaminants may remain. Cutting the welded joints or removing a large number of corroded bolts not only creates a harsh working environment and threatens operator safety, but the replacement process is also time-consuming, often taking several hours or even days, severely impacting equipment production efficiency.

[0004] Simple structure, limited protective effect: Traditional steel receiving trays are often simple flat or shallow tray structures. This structure is insufficient to restrain the molten metal, and the liquid is prone to splashing or flowing due to impact, making it difficult to collect completely. At the same time, the flat structure results in a short distance between the steel receiving tray and the furnace bottom equipment, leading to poor thermal insulation. A large amount of heat can still be quickly conducted downwards, failing to provide effective thermal protection.

[0005] The need for rapid replacement was not considered: As a vulnerable safety component, the steel receiving disc should have been designed as a modular structure for easy and quick replacement. However, existing technology neglected this need, treating it as a semi-permanent component, which caused it to become a bottleneck in maintenance work after an accident.

[0006] Therefore, there is an urgent need in this field for a new type of steel receiving tray device that can achieve rapid and safe replacement, while also having better molten metal confinement and thermal protection performance. Utility Model Content

[0007] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a smelting chamber receiving tray, which aims to overcome the defects of existing receiving trays, such as difficulty in replacement, long time consumption, high operation risk, and poor thermal protection and molten metal confinement effect.

[0008] The above-mentioned utility model objective is achieved through the following technical solution: This utility model provides a steel receiving tray for a melting chamber, comprising: a tray body; a handle disposed on the upper part of the tray body; and a cylindrical welded component fixedly connected to the lower surface of the tray body.

[0009] According to one embodiment of the present invention, the upper surface of the disc body is provided with a groove structure.

[0010] According to one embodiment of the present invention, the groove structure is a circular groove, a mesh-like groove, or a combination thereof.

[0011] According to one embodiment of the present invention, the depth of the groove structure is 10mm to 50mm and the width is 5mm to 20mm.

[0012] According to one embodiment of the present invention, the number of handles is two to four, and they are arranged on the edge of one side of the disc body.

[0013] According to one embodiment of the present invention, the surface of the handle is provided with a heat-insulating coating.

[0014] According to one embodiment of the present invention, the cylindrical welded part is a hollow cylinder or a solid cylinder.

[0015] According to one embodiment of the present invention, the height of the cylindrical welded part is 50mm to 150mm.

[0016] According to one embodiment of the present invention, the materials of the disc body, handle and cylindrical welded parts are high-temperature resistant metal materials or high-temperature resistant composite materials.

[0017] According to one embodiment of the present invention, the steel receiving tray is detachably connected to the bottom of the melting chamber furnace body via a quick-clamping mechanism or bolts.

[0018] In summary, compared with the prior art, the present invention has at least one of the following beneficial technical effects: Convenient replacement and high safety: By incorporating handles and a detachable connection method, the traditional steel receiving tray replacement method has been completely transformed. Operators can complete the replacement work in a safe area outside the furnace, avoiding entry into dangerous spaces and reducing replacement time from several hours to tens of minutes, greatly improving safety and operational efficiency.

[0019] Superior protective performance: The grooved structure on the upper surface of the tray effectively prevents molten metal splashing and spillage, ensuring that leaked materials are contained. The cylindrical welded component below significantly increases the height of the receiving tray from the ground, utilizing the excellent thermal insulation properties of air to form an effective thermal barrier, greatly reducing the heat transferred to the equipment below and providing more reliable thermal protection.

[0020] Simple structure and high practicality: This utility model has a reasonable structural design, clearly defined component functions, mature manufacturing process, and is easy to implement and promote. Its modular design concept allows it to be easily adapted to various existing smelting furnace types, giving it high practical value and market prospects.

[0021] This utility model discloses a steel receiving tray for a smelting chamber, belonging to the field of safety protection technology for industrial smelting equipment. This steel receiving tray aims to solve the problems of difficult replacement and poor thermal protection in existing steel receiving trays. Its main technical solution includes: a tray body with a grooved structure on its upper surface to prevent molten metal from flowing and splashing; a handle located on the upper part of the tray body for easy replacement; and a cylindrical welded component fixedly connected to the lower surface of the tray body to increase the overall structure and block heat transfer downwards. Through the above structural optimization, this utility model achieves rapid and safe replacement of the steel receiving tray and significantly improves safety protection performance in the event of an accident in the smelting chamber. It has the advantages of simple structure, safety and reliability, and strong practicality. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0023] Figure 2 This is the front view of the present invention.

[0024] Figure 3 This is a side view of the present invention.

[0025] Reference numerals: 1. Disc body; 2. Handle; 3. Cylindrical welded part; 4. Groove structure. Detailed Implementation

[0026] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0027] In the description of this application, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0029] Example 1: Reference Figures 1-3 The present invention discloses a steel receiving tray for a melting chamber, comprising: a tray body 1; a handle 2 disposed on the upper part of the tray body 1; and a cylindrical welded component 3 fixedly connected to the lower surface of the tray body 1.

[0030] The upper surface of the disc 1 is provided with a groove structure 4. The groove structure 4 is a circular groove, a mesh-like groove, or a combination thereof. In this embodiment, the groove structure 4 is preferably a circular groove. The depth of the groove structure 4 is 10 mm to 50 mm, and the width is 5 mm to 20 mm, in order to balance the liquid collection effect and the structural strength.

[0031] The number of handles 2 is two to four, and they are arranged on one edge of the pan body 1. In this embodiment, two handles 2 are provided to ensure balance and stability during hoisting or lifting. The surface of the handles 2 is provided with a heat-insulating coating to prevent burns during operation. The cylindrical welded part 3 is a hollow cylinder or a solid cylinder. In this embodiment, the cylindrical welded part 3 is preferably a solid cylinder, as a solid structure may provide better structural support. The height of the cylindrical welded part 3 is 50mm to 150mm to accommodate the space constraints and heat protection requirements of different furnace types.

[0032] The materials for the disc body 1, handle 2, and cylindrical welded component 3 are high-temperature resistant metals or high-temperature resistant composite materials. In this embodiment, the materials for the disc body 1, handle 2, and cylindrical welded component 3 are high-temperature resistant metals. The disc body 1, handle 2, and cylindrical welded component 3 are all manufactured using high-temperature resistant materials, such as 310S stainless steel, nickel-based high-temperature alloys, or composite materials coated with a ceramic layer, to ensure durability under extreme high-temperature environments. The receiving disc is detachably connected to the bottom of the melting chamber furnace body via a quick-clamping mechanism or bolts, further simplifying the installation and disassembly process.

[0033] The smelting chamber receiving tray includes a tray body 1, a handle 2, and a cylindrical welded component 3. The tray body 1, as the main load-bearing component, is used to receive leaked high-temperature molten metal. Its innovation lies in the specific groove structure 4 provided on the upper surface of the tray body 1. This groove structure 4 can effectively contain and guide the molten metal, preventing it from splashing or flowing around and contaminating other areas of the furnace or reducing the protective effect.

[0034] The handle 2 is fixedly installed on the upper part of the pan body 1, preferably on one side of the edge of the pan body 1. The handle 2 allows the operator to disassemble and install the steel receiving pan without entering the furnace bottom, using tools or by directly grasping it, thus achieving the purpose of quick replacement.

[0035] The cylindrical welded component 3 is fixedly connected to the lower surface of the plate 1. The main function of this welded component is to increase the overall height of the receiving plate, thereby forming a larger air insulation layer or safety distance between the plate 1 and the equipment at the bottom of the melting chamber, effectively blocking heat transfer downwards and protecting the sensitive equipment below.

[0036] In this embodiment, the steel receiving plate in the melting chamber consists of three core parts: the plate body 1, the handle 2, and the cylindrical welded component 3.

[0037] The dish 1 is a circular steel plate, the diameter of which can be customized according to the specific furnace type, for example, 800mm. Its thickness is 12mm to ensure sufficient structural strength to withstand the high-temperature molten metal. The upper surface of the dish 1 is machined with a circular groove structure 4, the groove being 30mm deep and 15mm wide. This groove is used to effectively collect and contain leaked molten metal in the event of crucible breakage, preventing it from splashing and flowing freely.

[0038] There are two handles 2, forged from heat-resistant steel. They are fixed to one side of the edge of the disc body 1 by welding. The handles 2 are designed with an ergonomic bending angle for easy hooking or gripping. For safety, the surface of the handles 2 is coated with a high-temperature resistant heat-insulating coating to form a heat insulation layer.

[0039] The cylindrical welded component 3 is a hollow circular steel tube with an outer diameter matching that of the disc body 1, a height of 100mm, and a wall thickness of 8mm. This welded component is firmly connected to the center of the lower surface of the disc body 1 via continuous circumferential welding. Its function is to elevate the entire receiving disc, forming a 100mm air insulation layer between the disc body 1 and the furnace bottom equipment, significantly slowing down heat conduction.

[0040] During installation, the receiving tray is connected to the corresponding interface at the bottom of the melting chamber furnace body via multiple quick-locking mechanisms (e.g., spring-loaded cam locking devices) evenly distributed along the edge of the tray body 1. When replacement is required, simply release the quick-locking mechanism, and then use a tool to hook the handle 2 to remove the entire receiving tray from the furnace.

[0041] The steel receiving tray of this utility model was installed in an equiaxed crystal vacuum precision casting furnace for practical application testing.

[0042] When the simulated crucible broke and molten steel at 1500°C leaked, the molten metal was effectively collected by the circular groove in the pan 1, without splashing. Thermal imaging measurements showed that after one hour of receiving molten steel, the temperature of the furnace bottom platform surface was only around 150°C, thanks to the cylindrical welded component 3, far below the 250°C limit that the vacuum seal below could withstand, thus effectively protecting the equipment.

[0043] In the subsequent replacement operation, two operators used long-handled tools to complete the disassembly of the damaged receiving tray and the installation of the new tray in just 20 minutes without having to enter the furnace. In contrast, the old receiving tray, which was fixed by traditional welding, would have taken at least 4 hours to complete the same operation and required personnel to enter the furnace bottom for high-risk work.

[0044] Comparative Experiment: To quantify the effect of this utility model, a comparative experiment was conducted:

[0045] Experimental data fully demonstrates the comprehensive advantages of this invention in terms of safety, efficiency, and protective performance. Through ingenious structural design, this invention successfully solves the global problem of difficult replacement of the smelting chamber receiving tray, while simultaneously improving its safety and protective performance. The specification has fully disclosed the technical solution of this invention, and those skilled in the art can manufacture and use the smelting chamber receiving tray based on the above description.

[0046] The implementation principle of this utility model is as follows: This utility model discloses a steel receiving tray for a melting chamber, belonging to the field of safety protection technology for industrial melting equipment. This steel receiving tray aims to solve the problems of difficult replacement and poor thermal protection effect of existing steel receiving trays. Its main technical solution includes: a tray body 1, the upper surface of which is provided with a groove structure 4 for preventing molten metal from flowing and splashing; a handle 2, located on the upper part of the tray body 1 for easy replacement; and a cylindrical welded part 3, fixedly connected to the lower surface of the tray body 1, used to increase the overall structure to block heat transfer downwards. Through the above structural optimization, this utility model achieves rapid and safe replacement of the steel receiving tray and significantly improves the safety protection performance in the event of a melting chamber accident. It has the advantages of simple structure, safety and reliability, and strong practicality.

[0047] The embodiments described herein are preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.

Claims

1. A steel receiving tray for a melting chamber, characterized in that, include: Disk body (1); A handle (2) is provided on the upper part of the disc body (1); A cylindrical welded part (3) is fixedly connected to the lower surface of the disk body (1); The upper surface of the disc body (1) is provided with a groove structure (4); The materials of the disc body (1), handle (2) and cylindrical welded parts (3) are high-temperature resistant metal materials or high-temperature resistant composite materials; The receiving tray is detachably connected to the bottom of the melting chamber furnace body via a quick-clamping mechanism or bolts.

2. The steel receiving tray for a smelting chamber according to claim 1, characterized in that, The groove structure (4) is a circular groove, a mesh-like groove, or a combination thereof.

3. The steel receiving tray for a smelting chamber according to claim 1, characterized in that, The groove structure (4) has a depth of 10 mm to 50 mm and a width of 5 mm to 20 mm.

4. A steel receiving tray for a smelting chamber according to claim 1, characterized in that, The number of handles (2) is two to four, and they are arranged on one edge of the plate body (1).

5. A steel receiving tray for a smelting chamber according to claim 4, characterized in that, The surface of the handle (2) is provided with a heat-insulating coating.

6. A steel receiving tray for a smelting chamber according to claim 1, characterized in that, The cylindrical welded part (3) is a hollow cylinder or a solid cylinder.

7. A steel receiving tray for a smelting chamber according to claim 6, characterized in that, The height of the cylindrical welded part (3) is 50mm to 150mm.

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