Explosion-proof hole cover plate with furnace pressure detection function

Abstract

The utility model discloses an explosion-proof hole cover plate with a furnace pressure detection function, which relates to the technical field of electric furnace or submerged arc furnace smelting systems and comprises a cover plate, a heat insulation sealing layer, a cooling pipeline and a furnace pressure detection device. The cover plate is rotatably arranged on the furnace cover, the heat insulation sealing layer is arranged at the bottom of the cover plate, the side face of the heat insulation sealing layer is conical and used for being matched with the anti-explosion hole to form conical sealing, and the cooling pipeline is arranged at the top of the cover plate and is densely arranged in an S shape; the furnace pressure detection device is installed on the top of the cover plate and comprises a buffer cylinder, a pressure taking pipe and a pressure guiding pipe, the end, away from the buffer cylinder, of the pressure taking pipe penetrates through the cover plate and the heat insulation sealing layer, and the end, away from the buffer cylinder, of the pressure guiding pipe is connected with a pressure detection instrument. According to the explosion-proof hole cover plate with the furnace pressure detection function, the service life of the cover plate is prolonged through the heat insulation effect of the heat insulation sealing layer and cooling of the cover plate by the cooling pipelines which are densely arranged in the S shape, the furnace pressure detection device is integrated on the top of the cover plate, the pressure in a furnace can be detected in real time, and use is convenient.

Description

Technical Field

[0001] This utility model relates to the technical field of electric furnace or submerged arc furnace smelting systems, and in particular to an explosion-proof hole cover with furnace pressure detection. Background Technology

[0002] Explosion-proof manhole covers are key safety components used in traditional metallurgical equipment to control the abnormal release of internal pressure. They are installed on the explosion-proof holes of metallurgical equipment (such as smelting furnaces and reaction vessels). When the internal pressure exceeds the threshold due to a sudden increase in temperature or gas expansion, the cover achieves controllable pressure relief through a specific structural design, preventing the equipment from exploding due to overpressure.

[0003] Existing explosion-proof manhole covers have the following defects under high temperature and high pressure environments:

[0004] Poor cooling effect: The explosion-proof hole cover is not sufficiently cooled, resulting in a shorter service life;

[0005] Insufficient sealing: High-temperature molten slag splashing threatens production safety;

[0006] Limited functionality: Traditional cover plates do not integrate furnace pressure detection, requiring additional openings to install detection devices, increasing the risk of leakage.

[0007] Therefore, there are still shortcomings and deficiencies in the existing technology. How to provide an explosion-proof hole cover with furnace pressure detection is a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0008] The purpose of this invention is to provide an explosion-proof hole cover with furnace pressure detection, which solves the technical problems of existing explosion-proof hole covers, such as poor cooling effect, insufficient sealing and limited functionality.

[0009] To achieve the above objectives, this utility model provides an explosion-proof hole cover with furnace pressure detection, comprising:

[0010] A cover plate, rotatably mounted on the furnace cover;

[0011] A heat-insulating sealing layer is provided at the bottom of the cover plate. The side of the heat-insulating sealing layer is conical, which is used to cooperate with the explosion-proof hole to form a conical seal.

[0012] Cooling pipes are located on the top of the cover plate and are arranged in a tightly packed S-shape.

[0013] A furnace pressure detection device is installed on the top of the cover plate and includes a buffer cylinder, a pressure tapping pipe and a pressure guiding pipe connected to the buffer cylinder. The end of the pressure tapping pipe away from the buffer cylinder passes through the cover plate and the heat insulation sealing layer, and the end of the pressure guiding pipe away from the buffer cylinder is connected to a pressure detection instrument.

[0014] Preferably, one side of the cover plate is rotatably mounted to the furnace cover via a hinge, and a limiting block is fixedly provided on the top of the cover plate near the hinge.

[0015] Preferably, both the inlet and outlet ends of the cooling pipe are connected to elbows.

[0016] Preferably, a mounting plate is fixedly provided on the top of the two elbows, and the pressure tapping pipe passes through the mounting plate and is fixedly connected to the mounting plate.

[0017] Preferably, a fixing plate is fixedly provided on the top of the mounting plate by fasteners, and the fixing plate is used to fix the pressure tapping tube.

[0018] Preferably, the fastener is a fastening bolt.

[0019] Preferably, the cooling pipeline has a rectangular structure, with a reserved space in the middle for the pressure tapping pipe to pass through.

[0020] Preferably, the cooling pipe is fixedly provided with lifting lugs.

[0021] Preferably, the pressure detection instrument is a pressure gauge or a pressure sensor.

[0022] Compared to the aforementioned background technology, the explosion-proof hole cover plate with furnace pressure detection provided by this utility model features a conical heat-insulating sealing layer at the bottom of the cover plate that achieves a conical seal with the explosion-proof hole, ensuring a sealing effect and providing heat insulation to prevent high-temperature gas in the furnace from directly contacting the cover plate. Cooling pipes arranged in a tight S-shape and fixed at the top of the cover plate are used for water cooling to prevent the cover plate from gradually burning or developing holes due to excessive temperature, thus extending the service life of the cover plate. The furnace pressure detection device is integrated and installed at the top of the cover plate, resulting in a compact overall structure. The lower end of the pressure tapping pipe extends into the furnace, allowing for real-time monitoring of the furnace pressure using a pressure detection instrument, making it convenient to use. 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 embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the structure of the explosion-proof hole cover plate with furnace pressure detection provided in an embodiment of the present utility model;

[0025] Figure 2 This is a top view schematic diagram of the explosion-proof hole cover plate with furnace pressure detection provided in an embodiment of the present utility model.

[0026] Figures 1 to 2 Chinese figure reference numerals: 10, cover plate; 11, hinge; 12, limiting block; 20, heat insulation sealing layer; 30, cooling pipe; 31, elbow; 32, lifting lug; 40, furnace pressure detection device; 41, buffer cylinder; 42, pressure tapping pipe; 43, pressure tapping pipe; 50, mounting plate; 51, fastener; 52, fixing plate; 60, furnace cover. Detailed Implementation

[0027] 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.

[0028] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] This utility model provides an explosion-proof hole cover with furnace pressure detection, which has a long service life and integrates a furnace pressure detection device 40, reducing the number of openings in the furnace cover 60 and ensuring sealing.

[0030] Please refer to this as well. Figures 1 to 2 The explosion-proof hole cover with furnace pressure detection provided by this utility model includes a cover plate 10, a heat insulation sealing layer 20, a cooling pipe 30, and a furnace pressure detection device 40.

[0031] The cover plate 10 is generally rectangular in shape and is rotatably mounted on the furnace cover 60, for example, on the furnace cover of a carbonization furnace or an electric furnace. The cover plate 10 may be made of stainless steel with good heat resistance.

[0032] A heat-insulating sealing layer 20 is located at the bottom of the cover plate 10. The side of the heat-insulating sealing layer 20 is conical, which is used to cooperate with the explosion-proof hole to form a conical seal, preventing high-temperature flue gas from escaping from the explosion-proof hole during normal smelting. On the one hand, the heat-insulating sealing layer 20 seals the explosion-proof hole by cooperating with it, and the conical seal helps to improve the sealing effect; on the other hand, the heat-insulating sealing layer 20 can also provide heat insulation, preventing high-temperature gas in the furnace from directly contacting the cover plate 10.

[0033] In this embodiment, the heat insulation sealing layer 20 is a knotting material layer, which is a refractory material layer formed by a specific process (such as manual or mechanical compaction) in metallurgical equipment, used for sealing and protection under high temperature and high pressure environments.

[0034] The cooling pipes 30 are located on the top of the cover plate 10 and are arranged in a close S-shape to improve the turbulence of the cooling water, increasing the heat exchange efficiency by more than 30% compared to traditional straight-line pipes. The cooling pipes 30 use water cooling, which has the advantages of low cooling circulation resistance and uniform cooling.

[0035] The furnace pressure detection device 40 is installed on the top of the cover plate 10. The furnace pressure detection device 40 includes a buffer cylinder 41, a pressure tapping pipe 42 and a pressure tapping pipe 43 connected to the buffer cylinder 41. The end of the pressure tapping pipe 42 away from the buffer cylinder 41 passes through the cover plate 10 and the heat insulation sealing layer 20. The end of the pressure tapping pipe 43 away from the buffer cylinder 41 is connected to a pressure detection instrument.

[0036] During depressurization, the furnace pressure exerts an upward impact force on the cover plate 10. Under this impact, the cover plate 10 flips upward, and the heat insulation sealing layer 20 no longer seals the explosion-proof hole, thus achieving depressurization. After depressurization, the cover plate 10 rotates back to its original position under its own gravity, resealing the explosion-proof hole through the heat insulation sealing layer 20. Cooling pipes 30, arranged in an S-shape and fixedly installed on the top of the cover plate 10, cool the cover plate 10 using water cooling, preventing it from gradually burning or developing holes due to excessive temperature, and extending its service life. A furnace pressure detection device 40 is installed on the top of the cover plate 10, with the lower end of the pressure tapping pipe 42 extending into the furnace, allowing for real-time monitoring of the furnace pressure using pressure detection instruments. The overall structure is compact.

[0037] This configuration provides insulation through the heat-insulating sealing layer 20, preventing high-temperature gas inside the furnace from directly contacting the cover plate 10. The S-shaped densely arranged cooling pipes 30 effectively cool the cover plate 10, extending its service life. The furnace pressure detection device 40 can detect the furnace pressure in real time, making it convenient to use.

[0038] Please refer to this as well. Figures 1 to 2 One side of the cover plate 10 is rotatably mounted to the furnace cover 60 via a hinge 11, and a limiting block 12 is fixedly provided on the top of the cover plate 10 near the hinge 11.

[0039] When the pressure is released, the cover plate 10 flips upward under the pressure inside the furnace. By setting the limit block 12, the flipping of the cover plate 10 can be limited, so as to prevent the cover plate 10 from flipping directly 180° and thus failing to achieve automatic reset under its own gravity.

[0040] This design effectively prevents the cover plate 10 from flipping 180° and failing to automatically reset under its own gravity. It is not only convenient to use and requires no additional operation, but also has a simple structure.

[0041] Optionally, the hinge 11 has a built-in disc spring assembly to provide cushioning damping when the cover plate 10 is reset, avoiding wear caused by rigid impact and extending service life.

[0042] Optionally, the limiting block 12 is provided with a wedge-shaped inclined surface. This configuration allows it to form an asymmetrical torque with the hinge 11. When the pressure is released, the flipping angle of the cover plate 10 is limited to a certain range, ensuring that the reset gravity torque is always greater than the flipping inertia moment.

[0043] Please refer to this as well. Figures 1 to 2 Both the inlet and outlet ends of the cooling pipe 30 are connected to elbows 31. By setting elbows 31, external inlet pipes and external outlet pipes can be connected to the inlet and outlet ends of the cooling pipe 30, respectively. In use, circulating cooling water is introduced into the cooling pipe 30 through the external inlet pipe, thereby effectively cooling the cover plate 10 and preventing the cover plate 10 from overheating.

[0044] The elbow 31 has a U-shaped structure, which provides ample installation space and facilitates the connection of external water inlet pipes, external water outlet pipes and cooling pipes 30.

[0045] It is understandable that the elbow 31 is flexibly connected to the external water inlet pipe and the external water outlet pipe through flexible hoses, etc. This setting ensures that the cooling pipe 30 can be rotated with the cover plate 10 during the explosion, without affecting normal use.

[0046] Please refer to this as well. Figures 1 to 2 The top of the two elbows 31 is fixedly provided with mounting plates 50, and the pressure tapping pipe 42 passes through the mounting plates 50 and is fixedly connected to the mounting plates 50.

[0047] The pressure tapping pipe 42 passes through the mounting plate 50, the cover plate 10, and the heat insulation sealing layer 20 so that the lower end of the pressure tapping pipe 42 can extend into the furnace. At the same time, the pressure tapping pipe 42 is fixedly connected to the mounting plate 50. Through this arrangement, the pressure tapping pipe 42 is reliably fixed, thereby installing the furnace pressure detection device 40 as a whole on the cover plate 10, improving the compactness of the structure.

[0048] Please refer to this as well. Figures 1 to 2 A fixing plate 52 is fixed to the top of the mounting plate 50 by fasteners 51. The fixing plate 52 is used to fix the pressure tapping pipe 42. Specifically, the fixing plate 52 is a plate-shaped structure with a through hole in the middle. The pressure tapping pipe 42 is connected to the fixing plate 52 through the through hole in the middle of the fixing plate 52 by interference fit, fixing the fixing plate 52 and the pressure tapping pipe 42 into one piece. The fixing plate 52 is fixed to the top of the mounting plate 50 by fasteners 51, thereby realizing the installation of the furnace pressure detection device 40.

[0049] In this embodiment, the fastener 51 is a fastening bolt, and there are multiple fastening bolts. The multiple fastening bolts are evenly distributed on the fixing plate 52. This arrangement optimizes the stress distribution through uniform load distribution design, avoids local stress concentration, and significantly improves the connection stability.

[0050] Please refer to this as well. Figures 1 to 2 The cooling pipes 30 are arranged in a rectangular structure. The cooling pipes 30 are coiled from the middle to the outside and then back to the middle. A space is reserved in the middle of the cooling pipes 30 for the pressure tapping pipe 42 to pass through.

[0051] Please refer to this as well. Figures 1 to 2 A lifting lug 32 is fixedly provided on the cooling pipe 30. By providing the lifting lug 32, it is easy to place the cooling pipe 30 on the top of the cover plate 10, thereby improving the ease of operation.

[0052] In this embodiment, the pressure detection instrument is a pressure gauge or a pressure sensor, which detects the pressure inside the furnace.

[0053] Optionally, the buffer cylinder 41 of the furnace pressure detection device 40 is equipped with a spiral guide plate and a honeycomb damping layer. This configuration can effectively attenuate furnace pressure pulse fluctuations and improve the stability of the pressure detection instrument readings.

[0054] Optionally, the surface of the cover plate 10 is provided with a high-temperature resistant coating, such as a silicon carbide ceramic coating laser-fused onto the surface of the cover plate 10, to improve high-temperature resistance and extend service life.

[0055] The explosion-proof cover plate with furnace pressure detection provided by this utility model uses a heat-insulating sealing layer 20 to provide heat insulation and sealing, preventing high-temperature gas in the furnace from directly contacting the cover plate 10. Cooling pipes 30, arranged in an S-shape and fixedly installed on the top of the cover plate 10, cool the cover plate 10 using water cooling, preventing it from gradually burning or developing holes due to excessive temperature, thus extending its service life. After depressurization, the cover plate 10 rotates and resets under its own weight. A limiting block 12 limits the rotation of the cover plate 10, preventing it from flipping 180° and failing to reset automatically. The furnace pressure detection device 40 is integrated into the top of the cover plate 10, with the lower end of the pressure tapping pipe 42 extending into the furnace, allowing real-time monitoring of the furnace pressure using a pressure gauge or pressure sensor, making it convenient to use.

[0056] It should be noted that in this specification, relational terms such as first and second are used only to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.

[0057] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principles of this utility model, and these improvements and modifications also fall within the protection scope of this utility model.

Claims

1. An explosion-proof hole cover with furnace pressure detection, characterized in that, include: A cover plate (10) is rotatably mounted on the furnace cover (60); A heat-insulating sealing layer (20) is provided at the bottom of the cover plate (10). The side of the heat-insulating sealing layer (20) is conical, which is used to cooperate with the explosion-proof hole to form a conical seal. Cooling pipes (30) are located on the top of the cover plate (10) and are arranged in an S-shape with close spacing. A furnace pressure detection device (40) is installed on the top of the cover plate (10) and includes a buffer cylinder (41), a pressure tapping pipe (42) connected to the buffer cylinder (41), and a pressure tapping pipe (43). The end of the pressure tapping pipe (42) away from the buffer cylinder (41) passes through the cover plate (10) and the heat insulation sealing layer (20). The end of the pressure tapping pipe (43) away from the buffer cylinder (41) is connected to a pressure detection instrument.

2. The explosion-proof hole cover with furnace pressure detection according to claim 1, characterized in that, One side of the cover plate (10) is rotatably mounted to the furnace cover (60) via a hinge (11), and a limiting block (12) is fixedly provided on the top of the cover plate (10) near the hinge (11).

3. The explosion-proof hole cover with furnace pressure detection according to claim 1, characterized in that, The cooling pipe (30) is connected to elbows (31) at both the inlet and outlet ends.

4. The explosion-proof hole cover with furnace pressure detection according to claim 3, characterized in that, The two elbows (31) are fixedly provided with mounting plates (50) on their tops, and the pressure tapping pipe (42) passes through the mounting plates (50) and is fixedly connected to the mounting plates (50).

5. The explosion-proof hole cover with furnace pressure detection according to claim 4, characterized in that, The mounting plate (50) has a fixing plate (52) fixed on its top by fasteners (51), and the fixing plate (52) is used to fix the pressure tapping tube (42).

6. The explosion-proof hole cover with furnace pressure detection according to claim 5, characterized in that, The fastener (51) is a fastening bolt.

7. The explosion-proof hole cover with furnace pressure detection according to claim 1, characterized in that, The cooling pipe (30) has a rectangular structure, and a space is reserved in the middle of the cooling pipe (30) for the pressure tapping pipe (42) to pass through.

8. The explosion-proof hole cover with furnace pressure detection according to claim 1, characterized in that, The cooling pipe (30) is fixedly provided with a lifting lug (32).

9. The explosion-proof hole cover with furnace pressure detection according to claim 1, characterized in that, The pressure detection instrument is a pressure gauge or a pressure sensor.

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