High-temperature infrared monitoring device of horizontal graphitization furnace

Abstract

The utility model discloses a high-temperature infrared monitoring device of a horizontal graphitization furnace, which comprises a flange connecting pipe provided with a flange pipe table, a flange plate fixed on the flange pipe table, three spring mounting columns fixed on the flange plate, a first limiting nut fixed in the middle of each spring mounting column, and an infrared fixed support plate arranged at the end part of each spring mounting column, an adjusting spring is arranged between the infrared fixing support plate and the first limiting nut, the infrared fixing support plate abuts against a focusing adjusting nut matched with the end of the spring mounting column, and a first temperature measuring hole is formed in the middle of the infrared fixing support plate. A second temperature measuring hole is formed in the center of the flange plate, a first high-temperature glass pressing plate is fixed to one side of the flange plate, a second high-temperature glass pressing plate is fixed to one side of the first high-temperature glass pressing plate, and a high-temperature glass lens is clamped between the first high-temperature glass pressing plate and the second high-temperature glass pressing plate. And the first high-temperature glass pressing plate and the second high-temperature glass pressing plate are respectively provided with a third temperature measuring hole and a fourth temperature measuring hole. The observation window lens can be replaced conveniently.

Description

Technical Field

[0001] This utility model relates to the field of graphitization furnace temperature monitoring technology, and in particular to a high-temperature infrared monitoring device for a horizontal graphitization furnace. Background Technology

[0002] Currently, the production of graphite electrodes for smelting, lithium battery anode materials, and isostatic graphite carbon materials in China primarily utilizes graphitization furnaces or internal series furnaces for the graphitization process. As the demands of the graphite application market increase, the requirements for the graphitization process are becoming increasingly stringent. To accurately control the degree of graphitization in graphite products, it is essential to control the graphitization temperature within the furnace.

[0003] In the field of graphitization furnaces, two types of high-temperature sensors are commonly used: infrared temperature sensors (Pyrometer) and thermocouple-type sensors. Traditional observation window lenses are easily contaminated by high-temperature volatiles, leading to infrared temperature measurement distortion. Existing fixed lenses cannot be quickly replaced or cleaned, and the focusing mechanism of the temperature measuring optical path is complex and difficult to adapt to the thermal deformation of the furnace body. Utility Model Content

[0004] To address the aforementioned shortcomings, this utility model provides a high-temperature infrared monitoring device for a horizontal graphitization furnace, which allows for easy replacement of the observation window lens.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-temperature infrared monitoring device for a horizontal graphitization furnace, comprising a flange connector, a flange platform at one end of the flange connector, a flange plate fixedly connected to the flange platform by a bolt assembly, three spring mounting posts fixedly connected to the flange plate, a first limiting nut fixedly connected to the middle of each spring mounting post, an infrared fixing bracket plate at the end of each spring mounting post, an adjusting spring between the infrared fixing bracket plate and the first limiting nut, the outer side of the infrared fixing bracket plate abutting against a focusing adjusting nut fitted at the end of the spring mounting post, and a first temperature measuring hole opened in the middle of the infrared fixing bracket plate;

[0006] A second temperature measuring hole matching the first temperature measuring hole is provided at the center of the flange. A first high-temperature glass pressure plate is fixed on the side of the flange near the infrared fixed bracket plate. A second high-temperature glass pressure plate is fixed on the side of the first high-temperature glass pressure plate away from the flange by a bolt assembly. A high-temperature glass lens is clamped between the first high-temperature glass pressure plate and the second high-temperature glass pressure plate. A third temperature measuring hole and a fourth temperature measuring hole matching the first temperature measuring hole are respectively provided on the first high-temperature glass pressure plate and the second high-temperature glass pressure plate.

[0007] As a further improvement of this utility model, the flange platform is provided with a first mating groove on the side near the flange, and the first mating groove matches the first mating ring provided on the flange.

[0008] As a further improvement of this utility model, a high-temperature sealing gasket is provided on the side of the second high-temperature glass pressure plate near the high-temperature glass lens, and a protective gasket is provided on the side of the first high-temperature glass pressure plate near the high-temperature glass lens.

[0009] As a further improvement of this utility model, the three spring mounting posts are fixed to the flange surface in an equilateral triangle arrangement.

[0010] As a further improvement of this utility model, an air inlet is provided on the outer edge of the first high-temperature glass pressure plate, and the air inlet is connected to the third temperature measuring hole.

[0011] As a further improvement of this utility model, one end of the inner cylinder is fixed at the second temperature measuring hole by an interference fit, and the other end of the inner cylinder extends out of the end of the flange connecting pipe.

[0012] As a further improvement of this utility model, a reinforcing nut is provided at the bottom of the spring mounting post.

[0013] As a further improvement of this utility model, a second mating groove is provided on the side of the flange near the first high-temperature glass pressure plate, and the second mating groove matches the second mating ring provided on the first high-temperature glass pressure plate.

[0014] The beneficial effects of this utility model are:

[0015] 1. An equilateral triangular arrangement of spring mounting posts, along with adjusting springs and focus adjustment nuts, forms a spatial adjustment system. The position of the infrared sensor mounted on the infrared mounting bracket can be fine-tuned by rotating the focus adjustment nut, thereby fine-tuning the infrared light path. Simultaneously, the high-temperature glass lens is clamped and fixed by two high-temperature glass pressure plates. When the high-temperature glass lens is severely contaminated or damaged, it can be periodically removed for cleaning and replacement.

[0016] 2. By opening an air inlet in the high-temperature glass plate inside the high-temperature glass lens, nitrogen gas is continuously blown into the inlet through the air intake device during the monitoring process, so that an air curtain barrier is formed inside the high-temperature glass lens, preventing the high-temperature glass lens from being contaminated in a short time. Attached Figure Description

[0017] Figure 1 This is an isometric view of the high-temperature infrared monitoring device for the horizontal graphitization furnace of this utility model;

[0018] Figure 2 It is an isometric drawing of the flange connector;

[0019] Figure 3 It is an isometric drawing of the flange;

[0020] Figure 4This is a schematic diagram of the installation of the first high-temperature glass pressure plate.

[0021] In the diagram: 1-Inner cylinder, 2-Flange connector, 200-Flange platform, 201-First mating groove, 3-Flange, 300-Second mating groove, 301-Second temperature measuring hole, 4-Reinforcing nut, 5-Spring mounting post, 6-First limit nut, 7-Adjusting spring, 8-Focusing adjustment nut, 9-Infrared fixing bracket plate, 900-First temperature measuring hole, 10-Second high-temperature glass pressure plate, 1000-Fourth temperature measuring hole, 11-High-temperature glass lens, 12-First high-temperature glass pressure plate, 1200-Third temperature measuring hole, 1201-Air inlet, 13-Protective gasket. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific examples described herein are merely illustrative of the present utility model and are not intended to limit the present utility model. The directional terms mentioned in the following embodiments, such as up, down, left, right, front, or back, are only for reference to the directions in the accompanying drawings. Therefore, the directional terms used are for illustrative purposes and not for limiting the present utility model. Furthermore, in all embodiments, the same reference numerals denote the same elements.

[0023] like Figure 1 The high-temperature infrared monitoring device for a horizontal graphitization furnace shown includes a flange connector 2, one end of which is provided with a flange platform 200. Two annular protrusions are provided on the inner side of the flange platform 200, forming a first mating groove 201 between the two annular protrusions. Several fixing holes are provided circumferentially on the outer edge of the flange platform 200.

[0024] A flange 3 is provided on one side of the flange platform 200, and the diameter of the flange 3 is the same as that of the flange platform 200. A fixing hole is provided on the outer edge of the flange 3, which matches the fixing hole on the flange platform 200. The flange 3 and the flange connecting pipe 2 are fixedly connected by bolts and nuts passing through the fixing holes, and gaskets are provided on both sides of the bolts and nuts.

[0025] A first mating ring is provided on the inner side of the flange 3, and the first mating ring matches the first mating groove 201 on the flange platform 200.

[0026] As a further illustration of this example, the coaxiality of the flange pipe 2 and the flange 3 can be ensured by the first mating ring and the first mating groove 201 engaging.

[0027] Several spring mounting posts 5 are also provided in the middle of the flange 3. The ends of the spring mounting posts 5 are threaded, and the spring mounting posts 5 are fixed to the flange 3 by the threads at the ends. A reinforcing nut 4 is provided on the side of the spring mounting posts 5 near the flange 3 to prevent the spring mounting posts 5 from rotating and falling off, and to further ensure the firmness of the spring mounting posts 5.

[0028] There are 3 spring mounting posts 5, which are arranged in an equilateral triangle.

[0029] Each spring mounting post 5 has a short thread in the middle, and a first limiting nut 6 is fixed at the short thread. An adjusting spring 7 is fitted on the spring mounting post 5, and the adjusting spring 7 is located on the side of the first limiting nut 6 away from the flange 3.

[0030] An infrared fixing bracket plate 9 is provided on the outer side of the adjusting spring 7. The infrared fixing bracket plate 9 is a triangular plate, and its corners are all fitted to the top of the spring mounting post 5. The top of the spring mounting post 5 is threaded. One side of the infrared fixing bracket plate abuts against the adjusting spring 7, and the other side abuts against the focusing adjustment nut 8 fitted to the top of the spring mounting post 5. A first temperature measuring hole 900 is provided in the middle of the infrared fixing bracket plate 9.

[0031] As a further illustration of this example, by rotating the focus adjustment nut, the degree of deformation of the adjustment spring 7 can be adjusted, thereby fine-tuning the position of the infrared fixed bracket plate 9.

[0032] A second temperature measuring hole 301 is provided at the center of the flange 3, and the second temperature measuring hole 301 matches the first temperature measuring hole 900. An inner cylinder 1 is fixed to the second temperature measuring hole 301 by an interference fit, and the other end of the inner cylinder 1 extends out of the flange connecting pipe 2. Several threaded grooves are provided on the surface of the flange 3 around the second temperature measuring hole 301.

[0033] A first high-temperature glass pressure plate 12 is provided on the side of the flange 3 near the infrared fixed bracket plate 9. The first high-temperature glass pressure plate is fixedly connected to the flange by bolts. The first high-temperature glass pressure plate 12 is cylindrical in shape and is arranged circumferentially along the second temperature measuring hole 301. A third temperature measuring hole 1200 matching the first temperature measuring hole 900 is opened at the center of the first high-temperature glass pressure plate 12.

[0034] An air inlet 1201 is provided on the outer edge of the first high-temperature glass pressure plate 12, and the air inlet 1201 is connected to the third temperature measuring hole 1200. A protective gasket 13 is provided on the side of the first high-temperature glass pressure plate 12 near the high-temperature glass lens 11 to prevent damage to the high-temperature glass lens 11.

[0035] As a further illustration of this example, a second mating groove 300 is provided on the flange 3 along the circumference of the second temperature measuring hole 301. The second mating groove 300 matches the second mating ring provided on the first high-temperature glass pressure plate 12 to ensure the coaxiality of the two during installation.

[0036] Several threaded grooves are provided on the surface of the first high-temperature glass pressure plate 12 along the circumference of the third temperature measuring hole 1200. A second high-temperature glass pressure plate 10 is provided on the side of the first high-temperature glass pressure plate 12 near the infrared fixing bracket plate 9, and a high-temperature sealing gasket is provided on the side of the second high-temperature glass pressure plate 10 near the first high-temperature glass pressure plate 12.

[0037] A high-temperature glass lens 11 is disposed between the first high-temperature glass plate 12 and the second high-temperature glass plate 10. The second high-temperature glass plate 10 and the first high-temperature glass plate 12 are connected by clamping bolts, the ends of which fit into the threaded grooves on the first high-temperature glass plate 12, and washers are disposed between the heads of the clamping bolts and the second high-temperature glass plate 10. A fourth temperature measuring hole 1000 is provided on the second high-temperature glass plate, which matches the first temperature measuring hole 900.

[0038] As a further illustration of this example, the distance between the second high-temperature glass pressure plate 10 and the first high-temperature glass pressure plate 12 can be adjusted by rotating the clamping bolt, thereby ensuring that the high-temperature glass lens 11 can be clamped between the two or removed from the two.

[0039] Working principle and usage process of this utility model:

[0040] This device is installed on the door of the bedroom stone grinding furnace. The flange connecting pipe 2 is fixedly connected to the door, and the inner cylinder 1 extends into the bedroom stone grinding furnace. An infrared sensor is installed on the infrared fixing bracket plate 9. The output end of the infrared sensor passes through the first temperature measuring hole 900. The detected infrared light passes sequentially through the first temperature measuring hole 900, the fourth temperature measuring hole 1000, the high-temperature glass lens 11, the third temperature measuring hole 1200, and the second temperature measuring hole 301, entering the bedroom stone grinding furnace through the inner cylinder 1 for temperature measurement. By rotating the focusing adjustment nut 8, the infrared fixing plate compresses the adjusting spring 7, thereby fine-tuning the distance between the infrared sensor and the high-temperature glass lens 11, achieving the focusing adjustment function and ensuring the accuracy of temperature detection.

[0041] At the same time, the air inlet 1201 on the first high-temperature glass pressure plate 12 is connected to the air inlet device, and nitrogen gas is blown into the air inlet 1201 through the air inlet device, forming an air curtain barrier on the inner side of the high-temperature glass lens 11 to prevent the high-temperature glass lens 11 from being contaminated in a short time.

[0042] The above are merely preferred embodiments of this utility model. The protection scope of this utility model is not limited to the above-described embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A high-temperature infrared monitoring device for a horizontal graphitization furnace, characterized in that, Includes a flange connector (2), one end of which is provided with a flange platform (200), the flange platform (200) is fixedly connected to a flange (3) by a bolt assembly, three spring mounting posts (5) are fixedly connected to the flange (3), each spring mounting post (5) is fixedly connected to a first limiting nut (6) in the middle, an infrared fixing bracket plate (9) is provided at the end of the spring mounting post (5), an adjusting spring (7) is provided between the infrared fixing bracket plate (9) and the first limiting nut (6), the outer side of the infrared fixing bracket plate (9) abuts against the focusing adjusting nut that is fitted to the end of the spring mounting post (5), and a first temperature measuring hole (900) is opened in the middle of the infrared fixing bracket plate (9); The flange (3) has a second temperature measuring hole (301) at its center that matches the first temperature measuring hole (900). A first high-temperature glass plate (12) is fixed on the side of the flange (3) near the infrared fixed bracket plate (9). A second high-temperature glass plate (10) is fixed on the side of the first high-temperature glass plate (12) away from the flange (3) by bolt assembly. A high-temperature glass lens (11) is clamped between the first high-temperature glass plate (12) and the second high-temperature glass plate (10). A third temperature measuring hole (1200) and a fourth temperature measuring hole (1000) are respectively opened on the first high-temperature glass plate (12) and the second high-temperature glass plate (10) that match the first temperature measuring hole (900).

2. The high-temperature infrared monitoring device for the horizontal graphitization furnace according to claim 1, characterized in that, The flange platform (200) is provided with a first mating groove (201) on the side near the flange (3), and the first mating groove (201) matches the first mating ring provided on the flange (3).

3. The high-temperature infrared monitoring device for the horizontal graphitization furnace according to claim 1, characterized in that, The second high-temperature glass pressure plate (10) is provided with a high-temperature sealing gasket on the side near the high-temperature glass lens (11), and the first high-temperature glass pressure plate (12) is provided with a protective gasket (13) on the side near the high-temperature glass lens (11).

4. The high-temperature infrared monitoring device for the horizontal graphitization furnace according to claim 1, characterized in that, The three spring mounting posts (5) are fixed to the flange (3) in an equilateral triangle arrangement.

5. The high-temperature infrared monitoring device for the horizontal graphitization furnace according to claim 1, characterized in that, An air inlet (1201) is provided on the outer edge of the first high-temperature glass pressure plate (12), and the air inlet (1201) is connected to the third temperature measuring hole (1200).

6. The high-temperature infrared monitoring device for the horizontal graphitization furnace according to claim 1, characterized in that, One end of the inner cylinder (1) is fixed at the second temperature measuring hole (301) by an interference fit, and the other end of the inner cylinder (1) extends out of the end of the flange pipe (2).

7. The high-temperature infrared monitoring device for the horizontal graphitization furnace according to claim 1, characterized in that, A reinforcing nut (4) is provided at the bottom of the spring mounting post (5).

8. The high-temperature infrared monitoring device for the horizontal graphitization furnace according to claim 1, characterized in that, The flange (3) is provided with a second mating groove (300) on the side near the first high-temperature glass pressure plate (12), and the second mating groove (300) matches the second mating ring provided on the first high-temperature glass pressure plate (12).

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