Thermal insulation protective fence for smelting furnace body
By designing a rotatable protective plate and an internal cooling system, the problem of traditional smelting furnace enclosures being unable to effectively cool down has been solved. This has enabled flexible installation, improved stability and safety, effectively prevented injury from high-temperature splashes, and ensured a safe working environment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI QUALITY SAFETY TECHNOLOGY CONSULTING CO LTD
- Filing Date
- 2025-06-09
- Publication Date
- 2026-05-12
AI Technical Summary
Traditional protective enclosures for smelting furnaces cannot effectively cope with the heat continuously emitted by the furnace body, posing safety risks after prolonged use.
Multiple protective plates are rotatably connected by connecting columns and combined with a limit block design. The protective plates are equipped with rotatable opening and closing doors and splash guards. The interior is equipped with a heat-absorbing structure and a circulating water cooling system, which utilizes stainless steel heat-absorbing rods and an alumina coating to form a closed-loop cooling system.
The protective fence can be flexibly deployed and retracted, improving structural stability and safety. It effectively blocks hot splashes, actively cools down, and ensures that the temperature on the outside of the fence is within a safe range, avoiding the risk of burns.
Smart Images

Figure CN224228385U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fence technology, specifically a heat insulation and protection fence for a smelting furnace. Background Technology
[0002] In industries such as metallurgy and casting, smelting furnaces are critical high-temperature heat sources, with operating temperatures typically reaching hundreds to thousands of degrees Celsius. To ensure the safety of workers and prevent the high temperatures from affecting surrounding equipment, protective fences are usually installed around the furnace. However, traditional smelting furnace protective fences often use simple metal structures or fixed partitions, which only provide limited insulation and cannot effectively cope with the continuous heat emitted by the furnace. After prolonged use, the outer surface temperature of the fence may still become excessively high, posing a safety risk. Utility Model Content
[0003] The summary section of this application is intended to provide a brief overview of the concepts, which will be described in detail in the detailed description section below. This summary section is not intended to identify key or essential features of the claimed technical solutions, nor is it intended to limit the scope of the claimed technical solutions.
[0004] In order to overcome the shortcomings of the prior art, this utility model provides a heat-insulating and protective fence for smelting furnaces.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a heat-insulating protective fence for a smelting furnace, comprising multiple protective plates, adjacent protective plates being rotatably connected by connecting columns, the upper end of the connecting columns being provided with a limiting block for limiting the rotation angle, one of the protective plates being provided with a rotatable opening and closing door, the upper end of the protective plate being installed with an outwardly extending splash guard, the interior of the protective plate being provided with a heat-absorbing structure, the heat-absorbing structure comprising at least one heat-absorbing rod, a water pipe penetrating inside the heat-absorbing rod, one end of the water pipe being a water inlet, and the other end of the water pipe being connected to an external refrigeration device.
[0006] Preferably, the heat-absorbing rod is made of stainless steel, has a hollow internal structure, and is coated with an anti-oxidation layer on its surface.
[0007] Preferably, the antioxidant layer is an aluminum oxide coating.
[0008] Preferably, the limiting block includes a limiting slot and a circular slot, and the limiting block is connected to the connecting post through the internal circular slot.
[0009] Preferably, the thickness of the protective plate is adapted to the depth of the limiting slot, and the limiting block is connected to the protective plate through the limiting slot.
[0010] Preferably, the inner side of the protective plate is provided with a heat insulation plate for heat insulation, so as to reduce the transfer of internal heat to the outside.
[0011] Preferably, a support leg is installed on the outer wall of the connecting column. The support leg can rotate relative to the connecting column and can be adjusted to the required angle before being fixed.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0013] This utility model discloses a heat-insulating protective fence for a smelting furnace. Multiple protective plates are rotatably connected by connecting columns, facilitating on-site deployment, retraction, and angle adjustment of the fence. The design, combined with limiting blocks, controls the rotation range and prevents displacement caused by vibration or external forces, enhancing the overall structural stability and safety. An outward-extending splash guard at the top of the protective plate effectively blocks high-temperature splashes or sparks generated during smelting, preventing injury to equipment surfaces and operators, significantly improving the safety of the working environment. The protective plate integrates a heat-absorbing structure using stainless steel heat-absorbing rods with circulating water pipes running through them, forming a closed-loop cooling system. Through continuous circulation of cooling water, heat around the furnace is efficiently absorbed and dissipated, achieving active cooling of the fence and ensuring stable operation in high-temperature environments. An insulation plate on the inner side of the protective plate further reduces heat transfer from the furnace to the outside, ensuring the temperature on the outside of the fence remains within a safe range, avoiding the risk of burns, and protecting surrounding equipment from high temperatures. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the heat insulation and protective fence structure for the smelting furnace body of this utility model. Figure 1 ;
[0015] Figure 2 This is a schematic diagram of the heat insulation and protective fence structure for the smelting furnace body of this utility model. Figure 2 ;
[0016] Figure 3 This is a schematic diagram of the heat insulation and protective fence structure for the smelting furnace body of this utility model. Figure 3 ;
[0017] Figure 4 This is a schematic diagram of the heat insulation and protective fence structure for the smelting furnace body of this utility model. Figure 4 ;
[0018] Figure 5 This is a schematic diagram of the heat insulation and protective fence structure for the smelting furnace body of this utility model. Figure 5 .
[0019] In the diagram: 1. Protective plate; 2. Connecting column; 3. Support leg; 4. Opening and closing door; 5. Splash guard; 6. Limiting block; 7. Heat absorption structure; 101. Heat insulation plate; 601. Limiting slot; 602. Circular slot; 701. Heat absorption rod; 702. Alumina coating; 703. Water pipe. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] Please see Figure 1-5 This embodiment provides the following technical solution:
[0022] A heat-insulating protective fence for a smelting furnace includes multiple protective plates 1, which are rotatably connected by connecting columns 2. The upper end of the connecting column 2 is provided with a limiting block 6 for limiting the rotation angle. One of the protective plates 1 is provided with a rotatable opening and closing door 4. The upper end of the protective plate 1 is equipped with an outwardly extending anti-splash plate 5. The interior of the protective plate 1 is provided with a heat-absorbing structure 7, which includes at least one heat-absorbing rod 701. A water pipe 703 is inserted through the heat-absorbing rod 701. One end of the water pipe 703 is a water inlet, and the other end of the water pipe 703 is connected to an external refrigeration device. Cooling water circulates through the water pipe 703, and the protective fence is cooled through heat exchange.
[0023] Specifically, the enclosure consists of a rectangular structure composed of multiple protective plates 1, which are rotatably connected by connecting columns 2 and equipped with limit blocks 6 to control the rotation angle, forming a structure that can be unfolded and retracted. The opening and closing door 4 provides an access passage for operators, facilitating the maintenance or feeding of the furnace. The splash guard 5 can block high-temperature splashes or sparks generated during the operation of the furnace, protecting the equipment and personnel. The heat-absorbing structure 7 can actively absorb and dissipate heat around the furnace to achieve cooling. The heat-absorbing rod 701 is located inside the protective plate 1 and serves as a carrier of the heat transfer medium. The water pipe 703 runs through the heat-absorbing rod 701, and cooling water circulates within it. The cooling water enters from the inlet, flows through the heat-absorbing rod 701, absorbs heat and heats up, and then flows to the external refrigeration equipment for cooling. The cooled water then flows back into the water pipe 703, forming a closed-loop circulating cooling system.
[0024] The heat absorber 701 is made of stainless steel and has a hollow internal structure. The surface of the heat absorber 701 is coated with an anti-oxidation layer, which is an aluminum oxide coating 702. By coating the surface of the heat absorber 701 with an aluminum oxide coating 702, the stainless steel substrate can be effectively prevented from contacting oxygen, thereby avoiding oxidation and corrosion and extending the service life of the heat absorber 701.
[0025] The limiting block 6 includes a limiting slot 601 and a circular slot 602. The limiting block 6 is connected to the connecting post 2 by inserting it into the internal circular slot 602. The thickness of the protective plate 1 is adapted to the depth of the limiting slot 601. The limiting block 6 is connected to the protective plate 1 by snapping it into the limiting slot 601.
[0026] Specifically, when the limiting block 6 cooperates with the connecting column 2, the limiting slot 601 cooperates with the protective plate 1, so that the protective plate 1 can be embedded in the limiting slot 601, limiting the position of the protective plate 1 after installation and preventing the protective plate 1 from shifting due to vibration or other external forces.
[0027] The inner side of the protective plate 1 is provided with a heat insulation plate 101 to reduce the transfer of internal heat to the outside. The heat insulation plate 101 is made of a high thermal resistance material, such as ceramic fiber, to reduce the transfer of furnace body heat to the outside, ensure that the temperature outside the enclosure is within a safe range, avoid the risk of burns, and protect the surrounding equipment from high temperatures.
[0028] A support leg 3 is installed on the outer wall of the connecting post 2. The support leg 3 can rotate relative to the connecting post 2 and can be adjusted to the required angle before being fixed, ensuring the stability of the entire fence.
[0029] In summary, the main body of this utility model fence consists of multiple protective plates 1. Adjacent protective plates 1 are rotatably connected by connecting posts 2, facilitating on-site installation, deployment, or folding of the fence. A limiting block 6 is provided at the upper end of the connecting post 2, with a circular slot 602 inside for insertion and fixation with the connecting post 2. Simultaneously, the limiting slot 601 matches the thickness of the protective plate 1, limiting the rotation angle and structural positioning. This not only ensures flexible rotation between the protective plates 1 but also prevents displacement due to vibration or external forces, improving the overall structural stability and safety. Each protective plate 1 is equipped with an outwardly extending splash guard 5, effectively blocking high-temperature splashes or sparks generated during the smelting process, preventing injury to equipment surfaces and operators, and further enhancing the safety of the working environment. To actively reduce the temperature around the furnace, a heat-absorbing structure 7 is integrated inside the enclosure. Its core component is a stainless steel heat-absorbing rod 701. The heat-absorbing rod 701 has a hollow interior and is permeated with water pipes 703. One end is a water inlet, and the other end is connected to external cooling equipment, forming a closed-loop cooling system. Cooling water absorbs heat radiated and conducted from the furnace as it passes through the heat-absorbing rod 701 from the inlet. It then flows out to the external cooling equipment for further cooling. The cooled water then recirculates back into the water pipes 703, continuously carrying away heat and thus cooling the protective enclosure. To further enhance the insulation effect, a heat-insulating plate 101 is installed on the inner side of the protective plate 1 to reduce heat transfer from the furnace to the outside, ensuring the temperature outside the enclosure remains within a safe range, avoiding the risk of burns, and protecting external equipment from high temperatures.
[0030] The above description is merely a selection of preferred embodiments of this disclosure and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the utility model involved in the embodiments of this disclosure is not limited to the technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in the embodiments of this disclosure.
Claims
1. A heat-insulating protective fence for a smelting furnace, comprising multiple protective plates (1), characterized in that: The adjacent protective plates (1) are rotatably connected by a connecting column (2). The upper end of the connecting column (2) is provided with a limiting block (6) for limiting the rotation angle. One of the protective plates (1) is provided with a rotatable opening and closing door (4). The upper end of the protective plate (1) is provided with an outwardly extending splash guard (5). The interior of the protective plate (1) is provided with a heat absorption structure (7). The heat absorption structure (7) includes at least one heat absorption rod (701). A water pipe (703) is provided inside the heat absorption rod (701). One end of the water pipe (703) is a water inlet, and the other end of the water pipe (703) is connected to an external refrigeration device.
2. The heat-insulating protective fence for a smelting furnace body according to claim 1, characterized in that: The heat absorber (701) is made of stainless steel and has a hollow internal structure. The surface of the heat absorber (701) is coated with an anti-oxidation layer.
3. The heat-insulating protective fence for a smelting furnace body according to claim 2, characterized in that: The antioxidant layer is made of aluminum oxide coating (702).
4. The heat-insulating protective fence for a smelting furnace body according to claim 1, characterized in that: The limiting block (6) includes a limiting slot (601) and a circular slot (602). The limiting block (6) is connected to the connecting post (2) through the internal circular slot (602).
5. The heat-insulating protective fence for a smelting furnace body according to claim 4, characterized in that: The thickness of the protective plate (1) is adapted to the depth of the limiting slot (601), and the limiting block (6) is connected to the protective plate (1) through the limiting slot (601).
6. The heat-insulating protective fence for a smelting furnace body according to claim 1, characterized in that: The inner side of the protective plate (1) is provided with a heat insulation plate (101) for heat insulation, so as to reduce the transfer of internal heat to the outside.
7. The heat-insulating protective fence for a smelting furnace body according to claim 1, characterized in that: The connecting column (2) is equipped with a support foot (3) on its outer wall. The support foot (3) can rotate relative to the connecting column (2) and can be adjusted to the required angle before being fixed.