Blast furnace top high pressure relief device

Abstract

The utility model relates to the technical field of steel manufacturing, and discloses a blast furnace top high pressure relief device. Comprising a blast furnace device, an equipment pressure relief mechanism is installed at the top of the blast furnace device, and an equipment air supply mechanism is installed in the middle of the interior of the blast furnace device. According to the blast furnace device, the air draft ring is installed in the blast furnace device, the rotating fans are installed in the air draft ring, the rotating fans are connected through the connecting columns, and the rotating fans are located in the middle and on the upper middle portion of the interior of the blast furnace device, so that high pressure in the blast furnace device can be transmitted, and the efficiency of discharging pressure in the blast furnace device is improved; and meanwhile, a hydraulic device is installed on the upper portion of the interior of the blast furnace device, the hydraulic device is connected with a scraper blade through a rotating ring and a telescopic plate, the hydraulic device drives the scraper blade to move up and down in the blast furnace device, and coal powder on the inner wall of the blast furnace device can be scraped thoroughly.

Description

Technical Field

[0001] This utility model relates to the field of steel manufacturing technology, specifically a high-pressure relief device for the top of a blast furnace. Background Technology

[0002] A blast furnace is a smelting device with an inner wall made of refractory materials. It converts iron oxides into high-temperature liquid pig iron through a series of complex physicochemical processes. In this process, coke or pulverized coal, as a carbon energy source, reacts with oxygen in the blown-in air at high temperatures to produce carbon monoxide and hydrogen. These gases remove oxygen from the iron ore as they rise inside the furnace, thus reducing it to iron.

[0003] The existing Chinese utility model patent with publication number CN220393777U discloses a blast furnace venting gas pressure relief and purification device, belonging to the field of steel manufacturing technology. This technical solution includes: an ash discharge pipe connected to the venting main pipe on one side of the safety venting pipeline and located at the lower part of a cyclone dust collector; and an ash hopper located below the ash discharge pipe, comprising: a first horizontal pipe, a second vertical pipe, and a third horizontal pipe; the first horizontal pipe is lower than the third horizontal pipe; one end of the first horizontal pipe is connected to the safety venting pipeline, and the other end is connected to the second vertical pipe; the second vertical pipe is connected to one end of the third horizontal pipe, and the other end of the third horizontal pipe is connected to the cyclone dust collector. This device achieves dust removal and ash discharge of large blast furnace venting gas at a relatively low cost, with high environmental benefits; it also features good dust removal effect, high temperature resistance, simple operation, and a small footprint.

[0004] Based on the above patent search and the discovery of equipment in the prior art, since the blast furnace is an important piece of equipment used for ironmaking, a large amount of heat and pressure are generated inside it during the ironmaking process. When the pressure inside the blast furnace reaches a certain value, the excessive internal pressure will damage the equipment and reduce its service life. At the same time, the excessive internal pressure of the blast furnace cannot be discharged quickly, resulting in incomplete depressurization. The existence of these problems affects the use of the equipment. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides a high-pressure relief device for blast furnace tops, which has the advantages of rapid pressure relief and fast discharge of high pressure, thus solving the aforementioned technical problems.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a high-pressure relief device for the top of a blast furnace, comprising a blast furnace assembly, a pressure relief mechanism installed on the top of the blast furnace assembly, and an air supply mechanism installed in the middle of the interior of the blast furnace assembly. The pressure relief mechanism includes: a pressure relief device installed on the top of the blast furnace assembly, a valve installed on the lower left side of the pressure relief device, a detector for pressure value detection installed on the opposite side of the valve, a connecting pipe connected to the lower part of the pressure relief device, an analyzer installed above the connecting pipe, an air inlet ring for high-pressure inlet testing installed outside the connecting pipe, an air inlet ring installed on the outer side of the air inlet ring, and an exhaust pipe for high-pressure discharge installed above the pressure relief device, with a spring tube in the middle of the exhaust pipe.

[0009] The equipment air supply mechanism includes: an exhaust ring installed in the middle of the blast furnace device, a rotating fan for rapid high-pressure discharge installed inside the exhaust ring, a connecting rod connecting the rotating fans, and a connecting column fixedly installed on the outside of the exhaust ring.

[0010] As a preferred embodiment of this utility model, an equipment ring is fixedly installed at the bottom of the blast furnace device, a gas pipe is installed in the upper middle part of the blast furnace device, and a hydraulic device is installed in the upper interior of the blast furnace device; the blast furnace device processes iron ore.

[0011] As a preferred embodiment of this utility model, a rotating ring is installed below the hydraulic device, and a telescopic plate is connected to the lower outer side of the rotating ring, with a scraper fixedly installed at one end of the telescopic plate; the hydraulic device causes the equipment to move up and down.

[0012] As a preferred embodiment of this utility model, a device ring is installed below the pressure relief device, and a pressure relief plate is installed below the device ring, and a switch is installed above the spring tube; the switch can control the pressure relief speed.

[0013] As a preferred technical solution of this utility model, the exhaust ring is connected to the blast furnace device through the connecting column, and the size of the rotating fan is different.

[0014] As a preferred technical solution of this utility model, the hydraulic device is movably connected through the rotating ring, the telescopic plate and the scraper, and the hydraulic device is located at the top center of the blast furnace device, and the scraper is close to one side of the blast furnace device. The telescopic plate can be adjusted at any angle through the rotating ring; the scraper can scrape off the coal powder on the inner wall of the blast furnace device.

[0015] As a preferred technical solution of this utility model, the connecting pipe is located inside the blast furnace device on one side, and the top of the connecting pipe is connected to the bottom of the pressure relief device. The connecting pipe is connected to the air inlet through the air inlet ring. The detector is inserted inside the pressure relief plate and is interconnected with the blast furnace device. The spring tube is located inside the pressure relief device at the top. The air inlet can transmit the high pressure inside the blast furnace device.

[0016] Compared with the prior art, this utility model provides a high-pressure relief device for the top of a blast furnace, which has the following beneficial effects:

[0017] 1. This utility model features a pressure relief device installed above the blast furnace assembly, with a pressure relief plate installed below it. An analyzer, detector, and valve are installed above the pressure relief plate, while a connecting pipe, an inlet ring, and an inlet are connected below the pressure relief plate. The inlet ring and inlet are located on the inner side of the blast furnace assembly, allowing the pressure inside the blast furnace assembly to be transmitted to the pressure relief device. The analyzer and detector determine the high pressure inside the blast furnace assembly. When the pressure inside the blast furnace assembly is low, it can be discharged through the exhaust pipe; if the pressure inside the blast furnace assembly is high, it can be discharged directly through the pressure relief device. The pressure relief device is equipped with a spring tube that ejects under high pressure, allowing the pressure relief device to discharge high pressure normally. This design allows for the discharge of high-pressure gases at different pressure values ​​within the blast furnace assembly, ensuring reasonable high-pressure discharge.

[0018] 2. This utility model features an exhaust ring installed inside the blast furnace assembly, with a rotating fan installed inside the exhaust ring. The rotating fan is connected via a connecting column and is located in the middle and upper center of the blast furnace assembly. This allows for the transmission of high pressure inside the blast furnace assembly, increasing the efficiency of pressure discharge and enabling rapid and thorough release of high pressure. Simultaneously, a hydraulic device is installed at the upper part of the blast furnace assembly. The hydraulic device is connected via a rotating ring, a telescopic plate, and a scraper. The hydraulic device drives the scraper to move up and down inside the blast furnace assembly, effectively scraping away coal dust from the inner wall of the blast furnace assembly. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the structural pressure relief device components of this utility model;

[0021] Figure 3 This is a schematic diagram of the internal components of the blast furnace device of this utility model.

[0022] Figure 4 This is a schematic diagram of the hydraulic device components of this utility model;

[0023] The components include: 1. Blast furnace equipment; 11. Exhaust ring; 12. Rotating fan; 13. Connecting rod; 14. Connecting column; 2. Equipment ring; 3. Furnace gas pipe; 4. Pressure relief device; 41. Device ring; 42. Valve; 43. Pressure relief plate; 44. Analyzer; 45. Detector; 46. Connecting pipe; 47. Inlet ring; 48. Inlet; 49. Exhaust pipe; 410. Switch; 411. Spring tube; 5. Hydraulic device; 51. Rotating ring; 52. Telescopic plate; 53. Scraper. Detailed Implementation

[0024] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0025] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model 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 utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] Please see Figure 1 — Figure 4 In this embodiment, a high-pressure relief device for the top of a blast furnace includes a blast furnace device 1. A pressure relief mechanism is installed on the top of the blast furnace device 1, and an air supply mechanism is installed in the middle of the interior of the blast furnace device 1. The air supply mechanism includes an exhaust ring 11 installed in the middle of the interior of the blast furnace device 1. A rotating fan 12 is installed inside the exhaust ring 11, and a connecting rod 13 is connected between the rotating fans 12. A connecting column 14 is fixedly installed on the outside of the exhaust ring 11. The exhaust ring 11 and the blast furnace device 1 are connected through the connecting column 14, and the rotating fans 12 are of different sizes.

[0028] Specifically, an exhaust ring 11 is installed inside the blast furnace device 1, and a rotating fan 12 is installed inside the exhaust ring 11. The rotating fans 12 are of different sizes and are connected by a connecting column 14, so that the rotating fans 12 rotate together through the motor at the bottom of the device. The rotating fans 12 can speed up the discharge of high-pressure gas inside the blast furnace device 1 and improve the depressurization efficiency of the blast furnace device 1.

[0029] A ring 2 is fixedly installed at the bottom of the blast furnace unit 1, and a gas pipe 3 is installed in the upper middle part of the blast furnace unit 1.

[0030] The equipment pressure relief mechanism includes: a pressure relief device 4 installed on the top of the blast furnace unit 1, a valve 42 installed on the lower left side of the pressure relief device 4, a detector 45 installed on the opposite side of the valve 42, a connecting pipe 46 connected to the lower part of the pressure relief device 4, an analyzer 44 installed above the connecting pipe 46, an air inlet ring 47 installed outside the connecting pipe 46, an air inlet 48 installed in a ring around the outside of the air inlet ring 47, an exhaust pipe 49 installed above the pressure relief device 4, and a spring tube 411 provided in the middle of the exhaust pipe 49; A device ring 41 is installed below the pressure relief device 4, and a pressure relief plate 43 is installed below the device ring 41. A switch 410 is installed above the spring tube 411. The connecting pipe 46 is located inside the blast furnace device 1, and the top of the connecting pipe 46 is connected to the bottom of the pressure relief device 4. The connecting pipe 46 is connected to the air inlet 48 through the air inlet ring 47. The detector 45 is inserted inside the pressure relief plate 43 and is interconnected with the blast furnace device 1. The spring tube 411 is located inside the pressure relief device 4.

[0031] Specifically, a pressure relief device 4 is installed above the blast furnace unit 1. The pressure relief device 4 is connected to the air intake ring 47 and air intake port 48 on one side of the blast furnace unit 1 through a connecting pipe 46. Using the connecting pipe 46 and air intake port 48, the pressure relief device 4 uses the analyzer 44 and detector 45 below to detect the high pressure inside the blast furnace unit 1. At the same time, an exhaust pipe 49, a switch 410 and a spring tube 411 are installed above the pressure relief device 4. When the pressure value inside the blast furnace unit 1 is low, the high pressure can be slowly discharged through the exhaust pipe 49. When the pressure value inside the blast furnace unit 1 is high, the pressure value will cause the spring tube 411 to spring upward, so that the pressure relief device 4 can quickly discharge the pressure inside the blast furnace unit 1.

[0032] A hydraulic device 5 is installed inside the upper part of the blast furnace unit 1; a rotating ring 51 is installed below the hydraulic device 5, and a telescopic plate 52 is connected to the lower part of the rotating ring 51. A scraper 53 is fixedly installed at one end of the telescopic plate 52. The hydraulic device 5 is movably connected through the rotating ring 51, the telescopic plate 52 and the scraper 53. The hydraulic device 5 is located at the top center of the blast furnace unit 1, and the scraper 53 is close to one side of the blast furnace unit 1. The telescopic plate 52 can be adjusted at any angle through the rotating ring 51.

[0033] Specifically, a hydraulic device 5 is installed above the interior of the blast furnace unit 1. The hydraulic device 5 is connected to the rotating ring 51, the telescopic plate 52 and the scraper 53. The scraper 53 is close to one side of the blast furnace unit 1. When the hydraulic device 5 moves, it drives the telescopic plate 52 and the scraper 53 to move up and down, thereby scraping off the coal powder on the inner wall of the blast furnace unit 1.

[0034] During operation, the blast furnace unit 1 generates a large amount of heat and pressure during the ironmaking process. The high pressure inside the blast furnace unit 1 can be released through the pressure relief device 4 located above it. Firstly, the pressure relief device 4 is installed above the blast furnace unit 1. The pressure relief device 4 is connected to the air intake ring 47 and air intake port 48 on one side of the blast furnace unit 1 via a connecting pipe 46. The air intake ring 47 and air intake port 48 transmit the high pressure inside the blast furnace unit 1. The pressure relief device 4 uses an analyzer 44 and a detector 45 below to detect the high pressure inside the blast furnace unit 1. When the pressure inside the blast furnace unit 1 is low, the high pressure can be slowly released through the exhaust pipe 49. When the pressure inside the blast furnace unit 1 is high, an exhaust ring 11 and a rotating fan 12 are installed inside the blast furnace unit 1, and the rotating fan 12 is equipped with several... There are three sets of rotating fans 12, and the sizes of the rotating fans 12 are different. The rotating fans 12 are driven by the motor at the bottom, and the connecting column 14 makes the rotating fans 12 rotate together, so that the high pressure inside the blast furnace device 1 is transmitted quickly. Then, the larger pressure value is used to make the spring tube 411 bounce upward, so that the pressure relief device 4 can quickly release the pressure inside the blast furnace device 1, improving the high pressure discharge efficiency of the equipment. Finally, after the blast furnace device 1 has a lot of coal dust on the inner wall, the hydraulic device 5 can be used to scrape off the coal dust. The hydraulic device 5 is connected through the rotating ring 51, the telescopic plate 52 and the scraper 53. The scraper 53 is close to one side of the blast furnace device 1. When the hydraulic device 5 moves, it drives the telescopic plate 52 and the scraper 53 to move up and down, thereby scraping off the coal dust on the inner wall of the blast furnace device 1 and cleaning the inner wall of the blast furnace device 1.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-pressure relief device for the top of a blast furnace, comprising: A blast furnace device (1), wherein a pressure relief mechanism is installed on the top of the blast furnace device (1), and a blower mechanism is installed in the middle of the interior of the blast furnace device (1). The pressure relief mechanism comprises: a pressure relief device (4) installed on the top of the blast furnace device (1), a valve (42) installed on the lower left side of the pressure relief device (4), and a detector (45) installed on the opposite side of the valve (42), and a connecting pipe (46) connected to the lower part of the pressure relief device (4), an analyzer (44) installed above the connecting pipe (46), an air inlet ring (47) installed outside the connecting pipe (46), and an air inlet (48) annularly installed outside the air inlet ring (47), an exhaust pipe (49) installed above the pressure relief device (4), and a spring tube (411) provided in the middle of the exhaust pipe (49). The equipment air supply mechanism includes: an exhaust ring (11) installed in the middle of the blast furnace device (1), a rotating fan (12) is installed inside the exhaust ring (11), and a connecting rod (13) is connected between the rotating fans (12), and a connecting column (14) is fixedly installed on the outside of the exhaust ring (11).

2. The high-pressure relief device for the top of a blast furnace according to claim 1, characterized in that, The bottom of the blast furnace device (1) is fixedly equipped with an equipment ring (2), and a furnace gas pipe (3) is installed in the upper middle part of the blast furnace device (1). A hydraulic device (5) is installed in the upper interior of the blast furnace device (1).

3. The high-pressure relief device for the top of a blast furnace according to claim 2, characterized in that, A rotating ring (51) is installed below the hydraulic device (5), and a telescopic plate (52) is connected to the lower outer side of the rotating ring (51), and a scraper (53) is fixedly installed at one end of the telescopic plate (52).

4. The high-pressure relief device for the top of a blast furnace according to claim 1, characterized in that, A device ring (41) is installed below the pressure relief device (4), and a pressure relief plate (43) is installed below the device ring (41), and a switch (410) is installed above the spring tube (411).

5. The high-pressure relief device for the top of a blast furnace according to claim 1, characterized in that, The exhaust ring (11) is connected to the blast furnace device (1) through the connecting column (14), and the rotating fan (12) has different sizes.

6. The high-pressure relief device for the top of a blast furnace according to claim 3, characterized in that, The hydraulic device (5) is connected to the rotating ring (51), the telescopic plate (52) and the scraper (53) in an active manner. The hydraulic device (5) is located at the top center of the blast furnace device (1), and the scraper (53) is close to one side of the blast furnace device (1). The telescopic plate (52) can be adjusted at any angle through the rotating ring (51).

7. The high-pressure relief device for the top of a blast furnace according to claim 3, characterized in that, The connecting pipe (46) is located inside the blast furnace device (1) on one side, and the top of the connecting pipe (46) is connected to the bottom of the pressure relief device (4). The connecting pipe (46) is connected to the air inlet (48) through the air inlet ring (47). The detector (45) is inserted inside the pressure relief plate (43) and is interconnected with the blast furnace device (1). The spring tube (411) is located inside the pressure relief device (4) above.

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