A high-temperature furnace protective gas replenishment system

Abstract

The utility model relates to high temperature furnace equipment technical field especially relates to a kind of high temperature furnace protective gas supplement system, it includes high temperature smelting furnace and protective gas supplement component;Protective gas supplement component includes riser and air pump, riser and air pump are fixedly installed on high temperature smelting furnace upside and riser is connected with high temperature smelting furnace inside, bottom disc and top disc are provided in riser inside, bottom disc upside is fixedly installed with inner tube, top disc downside is fixedly installed with outer tube, inner tube is sealed slidingly inserted in outer tube inside, bottom disc upside is fixedly installed with electric telescopic rod, electric telescopic rod output end upside is fixedly installed with pull spring, pull spring upper end is fixedly installed with tension sensor, and tension sensor is fixedly connected with top disc bottom portion.The utility model is provided with protective gas supplement component, realizes the high pressure overload automatic pressure relief protection effect to high temperature smelting furnace, can also actively change pressure relief threshold value, and improves use flexibility.

Description

Technical Field

[0001] This utility model relates to the field of high-temperature furnace equipment technology, and in particular to a high-temperature furnace protective gas replenishment system. Background Technology

[0002] In industrial settings such as metallurgy and materials processing, high-temperature smelting furnaces need to be continuously filled with inert protective gas to isolate them from air, prevent material oxidation and nitriding, and ensure product purity and performance. The stability of the protective gas replenishment system directly affects production quality and safety.

[0003] The pressure relief function of the existing system relies solely on passive mechanical reaction and lacks active adjustment capability. It cannot adjust the pressure relief triggering conditions according to the real-time operating conditions inside the furnace, nor can it form a linkage control with the protective gas charging rate. This not only leads to the waste of protective gas due to excessive charging, but also causes the stable smelting environment to be disrupted by gas pressure fluctuations, reducing the level of production intelligence and restricting the upgrading and optimization of high-temperature smelting processes.

[0004] To address the above issues, we propose a high-temperature furnace protective gas replenishment system. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a high-temperature furnace protective gas replenishment system.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A high-temperature furnace protective gas replenishment system includes a high-temperature smelting furnace and a protective gas replenishment component. The protective gas replenishment component includes a riser and an air pump. Both the riser and the air pump are fixedly installed on the upper side of the high-temperature smelting furnace, and the riser is connected to the interior of the high-temperature smelting furnace. A base plate and a top plate are provided inside the riser. An inner cylinder is fixedly installed on the upper side of the base plate, and an outer cylinder is fixedly installed on the lower side of the top plate. The inner cylinder is slidably inserted into the inner side of the outer cylinder. An electric telescopic rod is fixedly installed on the upper side of the base plate. A tension spring is fixedly installed on the upper side of the output end of the electric telescopic rod. A tension sensor is fixedly installed on the upper end of the tension spring. The tension sensor is fixedly connected to the bottom of the top plate. Several side air holes are correspondingly opened on the side walls of the inner cylinder and the outer cylinder.

[0008] Furthermore, the chassis is provided with a number of first air holes evenly distributed on it, the first air holes being connected to the inside of the inner cylinder, and the top plate is provided with a number of second air holes evenly distributed on it, the second air holes being distributed on the outside of the outer cylinder.

[0009] Furthermore, a first sealing ring is fitted on the outer side of the chassis, and a second sealing ring is fitted on the outer side of the top plate. The first sealing ring abuts against the inner wall of the riser, and the second sealing ring slides against the inner wall of the riser.

[0010] Furthermore, a number of ear plates are fixedly connected to the bottom of the chassis, and the ear plates are screwed to the inner wall of the riser.

[0011] Furthermore, the output end of the air pump is connected to the riser pipe and an electromagnetic valve is fixedly installed at the output end of the air pump, and an inert protective gas delivery pipe is fixedly installed on the side of the air pump.

[0012] Furthermore, the high-temperature smelting furnace is covered with several arc-shaped insulation boards, and a controller is fixedly installed on the outer wall of the arc-shaped insulation boards.

[0013] Furthermore, a discharge port is fixedly installed on the bottom side of the high-temperature smelting furnace, and a first solenoid valve is fixedly installed on the discharge port.

[0014] Furthermore, a feeding pipe is fixedly installed on the upper side wall of the high-temperature smelting furnace, a conical hopper is fixedly installed on the upper side of the feeding pipe, and a second solenoid valve is fixedly installed on the side wall of the feeding pipe.

[0015] Compared with related technologies, the high-temperature furnace protective gas replenishment system proposed in this utility model has the following beneficial effects:

[0016] The high-temperature furnace protective gas replenishment system of this utility model uses a gas replenishment component to fill the interior of the high-temperature smelting furnace with inert protective gas via a gas pump. Simultaneously, an automatic pressure relief component is installed in the riser. When the internal gas pressure of the high-temperature smelting furnace is too high, the top plate is pushed upwards under pressure, achieving automatic pressure relief protection against high-pressure overload. Furthermore, the electric telescopic rod inside the inner cylinder can adjust the deformation of the tension spring by contraction and deformation, thereby actively changing the pressure relief threshold and improving operational flexibility. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of a high-temperature furnace protective gas replenishment system proposed in this utility model;

[0018] Figure 2 A three-dimensional structural diagram of the protective gas replenishment component;

[0019] Figure 3 This is a schematic diagram of the three-dimensional cross-sectional structure of the riser.

[0020] Figure 4 This is a three-dimensional structural diagram of the internal components of the riser.

[0021] Figure 5 This is a three-dimensional cross-sectional diagram of the internal components of the riser.

[0022] In the diagram: 1. High-temperature smelting furnace; 2. Arc-shaped insulation board; 3. Controller; 4. Discharge port; 5. First solenoid valve; 6. Feeding pipe; 7. Second solenoid valve; 8. Conical hopper; 9. Protective gas replenishment assembly; 91. Riser; 92. Air pump; 93. Inert protective gas delivery pipe; 94. Solenoid valve; 95. Chassis; 96. First air hole; 97. Ear plate; 98. First sealing ring; 99. Inner cylinder; 910. Top plate; 911. Second sealing ring; 912. Outer cylinder; 913. Second air hole; 914. Side air hole; 915. Electric telescopic rod; 916. Tension spring; 917. Tension sensor. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] Reference Figures 1-5 A protective gas replenishment system for a high-temperature furnace includes a high-temperature smelting furnace 1 and a protective gas replenishment component 9. The protective gas replenishment component 9 includes a riser 91 and an air pump 92. Both the riser 91 and the air pump 92 are fixedly installed on the upper side of the high-temperature smelting furnace 1, and the riser 91 is connected to the interior of the high-temperature smelting furnace 1. A base plate 95 and a top plate 910 are provided inside the riser 91. An inner cylinder 99 is fixedly installed on the upper side of the base plate 95, and an outer cylinder 912 is fixedly installed on the lower side of the top plate 910. The inner cylinder 99 is slidably inserted into the inner side of the outer cylinder 912. An electric telescopic rod 915 is fixedly installed on the upper side of the base plate 95. A tension spring 916 is fixedly installed on the upper side of the output end of the electric telescopic rod 915. A tension sensor 917 is fixedly installed on the upper end of the tension spring 916. The tension sensor 917 is fixedly connected to the bottom of the top plate 910. Several side air holes 914 are correspondingly opened on the side walls of the inner cylinder 99 and the outer cylinder 912.

[0025] With the above-described configuration, the induced tension on the tension sensor 917 is balanced with the pressure applied to the top plate 910 by the internal gas pressure of the high-temperature smelting furnace 1. The controller 3 can accurately calculate the internal gas pressure of the high-temperature smelting furnace 1 using the data provided by the tension sensor 917. When it is necessary to adjust the pressure relief value, simply activate the internal electric telescopic rod 915 for extension and retraction. When the electric telescopic rod 915 extends, the active pressure relief is triggered, and the extension of the tension spring 916 decreases, thereby reducing the active pressure relief value. Conversely, it increases the extension, giving the device the function of actively adjusting the pressure relief value. It should be noted that all sealing materials used in this invention are heat-resistant materials. Since the internal gas temperature of the high-temperature smelting furnace 1 is relatively high, the use of heat-resistant materials can ensure the sealing performance.

[0026] In this method, a number of first air holes 96 are evenly distributed on the chassis 95, and the first air holes 96 are connected to the interior of the inner cylinder 99. Second air holes 913 are evenly distributed on the top plate 910, and the second air holes 913 are distributed on the outside of the outer cylinder 912.

[0027] With the above configuration, the first vent 96 and the second vent 913 provide air inlet and outlet channels, respectively.

[0028] In this method, a first sealing ring 98 is sleeved on the outer side of the chassis 95, and a second sealing ring 911 is sleeved on the outer side of the top plate 910. The first sealing ring 98 abuts against the inner wall of the riser 91, and the second sealing ring 911 slides against the inner wall of the riser 91. Several ear plates 97 are fixedly connected to the bottom of the chassis 95, and the ear plates 97 are screwed to the inner wall of the riser 91.

[0029] The above-mentioned design makes the disassembly of internal components relatively convenient. Simply remove the ear plate 97 by screwing it off, and then slide the entire internal component out from the top of the riser 91, which facilitates later maintenance and replacement work.

[0030] In this configuration, the output end of the air pump 92 is connected to the riser 91 and a solenoid valve 94 is fixedly installed at the output end of the air pump 92. An inert protective gas delivery pipe 93 is fixedly installed on the side of the air pump 92.

[0031] With the above-mentioned setup, the inert protective gas delivery pipe 93 is used to supply inert protective gas. The gas pressure inside the high-temperature smelting furnace 1 can be calculated by the controller 3 based on the data fed back by the tension sensor 917. When the corresponding gas pressure is reached, the air pump 92 stops driving, and the electromagnetic valve 94 closes at the same time.

[0032] In this method, a number of arc-shaped insulation boards 2 are wrapped around the outside of the high-temperature smelting furnace 1, and a controller 3 is fixedly installed on the outer wall of the arc-shaped insulation board 2.

[0033] Through the above-mentioned setup, the arc-shaped insulation board 2 provides insulation and improves the energy efficiency of the high-temperature smelting furnace 1.

[0034] In this method, a discharge port 4 is fixedly installed on the bottom side of the high-temperature smelting furnace 1, a first solenoid valve 5 is fixedly installed on the discharge port 4, a feeding pipe 6 is fixedly installed on the upper side wall of the high-temperature smelting furnace 1, a cone hopper 8 is fixedly installed on the upper side of the feeding pipe 6, and a second solenoid valve 7 is fixedly installed on the side wall of the feeding pipe 6.

[0035] The working principle of the high-temperature furnace protective gas replenishment system provided by this utility model is as follows:

[0036] When the high-temperature furnace protective gas replenishment system is working, the material to be smelted is first introduced into the feeding pipe 6 through the cone hopper 8. The second solenoid valve 7 is opened to allow the material to enter the high-temperature smelting furnace 1. After the second solenoid valve 7 is closed, the air pump 92 is started. The inert protective gas delivered by the inert protective gas delivery pipe 93 enters the riser 91 through the solenoid valve 94, and then flows directly into the interior of the high-temperature smelting furnace 1 through the riser 91. During the process, the arc-shaped insulation plate 2 keeps the high-temperature smelting furnace 1 warm. The controller 3 receives the tension data fed back by the tension sensor 917 in real time. When the gas pressure inside the high-temperature smelting furnace 1 is calculated to reach the set value, the air pump 92 is controlled to stop working and the solenoid valve 94 is closed to maintain a stable gas pressure environment inside the furnace.

[0037] When the gas pressure inside the high-temperature smelting furnace 1 rises due to an abnormal situation, the high-pressure gas pushes the top plate 910 to slide upward. The top plate 910 drives the outer cylinder 912 to move upward along the inner cylinder 99, while simultaneously stretching the tension spring 916. When the side vent 914 on the outer cylinder 912 coincides with the side vent 914 on the inner cylinder 99, the high-pressure gas inside the furnace is discharged sequentially through the first vent 96, the coinciding side vent 914 of the inner cylinder 99 and outer cylinder 912, and the second vent 913 on the top plate 910, thus achieving automatic pressure relief. If it is necessary to adjust the pressure relief threshold, the controller 3 controls the electrical... The retraction of the telescopic rod 915 changes the initial deformation of the tension spring 916, thereby adjusting the air pressure required to push the top plate 910 (under the pull of the tension spring 916, the bottom of the outer cylinder 912 abuts against the top surface of the base plate 95, so that the opening pressure of the top plate 910 can be changed when the telescopic part of 915 retracts). After the pressure is released, the tension spring 916 resets and drives the top plate 910 to fall back, the side air holes 914 of the outer cylinder 912 and the inner cylinder 99 are misaligned, and the pressure release stops. After the smelting is completed, the first solenoid valve 5 is opened, and the finished product is discharged through the discharge port 4.

[0038] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A high-temperature furnace protective gas replenishment system, characterized in that, Includes a high-temperature smelting furnace (1) and a protective gas replenishment assembly (9); The protective gas replenishment component (9) includes a riser (91) and an air pump (92). The riser (91) and the air pump (92) are both fixedly installed on the upper side of the high-temperature smelting furnace (1), and the riser (91) is connected to the inside of the high-temperature smelting furnace (1). A base plate (95) and a top plate (910) are provided on the inner side of the riser (91). An inner cylinder (99) is fixedly installed on the upper side of the base plate (95), and an outer cylinder (912) is fixedly installed on the lower side of the top plate (910). The inner cylinder (99) The sealing sliding is inserted into the inner side of the outer cylinder (912). An electric telescopic rod (915) is fixedly installed on the upper side of the chassis (95). A tension spring (916) is fixedly installed on the upper side of the output end of the electric telescopic rod (915). A tension sensor (917) is fixedly installed on the upper end of the tension spring (916). The tension sensor (917) is fixedly connected to the bottom of the top plate (910). Several side air holes (914) are correspondingly opened on the side walls of the inner cylinder (99) and the outer cylinder (912).

2. The high-temperature furnace protective gas replenishment system according to claim 1, characterized in that, The chassis (95) is provided with a plurality of first air holes (96) evenly distributed on it. The first air holes (96) are connected to the interior of the inner cylinder (99). The top plate (910) is provided with a plurality of second air holes (913) evenly distributed on it. The second air holes (913) are distributed on the outside of the outer cylinder (912).

3. The high-temperature furnace protective gas replenishment system according to claim 1, characterized in that, The chassis (95) is fitted with a first sealing ring (98) on the outside, and the top plate (910) is fitted with a second sealing ring (911) on the outside. The first sealing ring (98) abuts against the inner wall of the riser (91), and the second sealing ring (911) slides against the inner wall of the riser (91).

4. The high-temperature furnace protective gas replenishment system according to claim 1, characterized in that, The bottom of the chassis (95) is fixedly connected with several ear plates (97), and the ear plates (97) are screwed to the inner wall of the riser (91).

5. The high-temperature furnace protective gas replenishment system according to claim 1, characterized in that, The output end of the air pump (92) is connected to the riser (91) and an electromagnetic valve (94) is fixedly installed at the output end of the air pump (92). An inert protective gas delivery pipe (93) is fixedly installed on the side of the air pump (92).

6. The high-temperature furnace protective gas replenishment system according to claim 1, characterized in that, The high-temperature smelting furnace (1) is covered with several arc-shaped insulation boards (2), and a controller (3) is fixedly installed on the outer wall of the arc-shaped insulation board (2).

7. The high-temperature furnace protective gas replenishment system according to claim 1, characterized in that, The high-temperature smelting furnace (1) has a discharge port (4) fixedly installed on the bottom side, and a first solenoid valve (5) is fixedly installed on the discharge port (4).

8. A high-temperature furnace protective gas replenishment system according to claim 1, characterized in that, A feeding pipe (6) is fixedly installed on the upper side wall of the high-temperature smelting furnace (1), a cone hopper (8) is fixedly installed on the upper side of the feeding pipe (6), and a second solenoid valve (7) is fixedly installed on the side wall of the feeding pipe (6).

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