A device for quickly sealing two sets of coke at blast furnace tuyeres

Abstract

This utility model discloses a device for quickly sealing coke at two sets of blast furnace tuyeres, comprising a mud container and a mud pusher. The mud pusher is positioned on the surface of the mud container, which includes a mud-holding plate with a hand-holding connecting rod fixedly connected to one side wall. The mud pusher includes a mud-pushing plate with a mud-pushing pull rod fixedly connected to its side wall, and the mud pusher is positioned on the surface of the mud-holding plate and in contact with it. The advantages of this utility model are: reasonable structural design, ingenious concept, easy processing, low manufacturing cost, convenient operation, time and labor saving, and effective reduction of manpower input. After dismantling the two sets of blast furnace tuyeres, the front end of the two sets can be promptly sealed with cement. The operation is safe and reliable, suitable for operation in confined spaces, and highly efficient. It effectively seals the coke at the front end of the two sets of blast furnace tuyeres, reducing safety risks and meeting on-site maintenance needs.

Description

Technical Field

[0001] This utility model relates to the technical field of auxiliary tools for metallurgical equipment maintenance, specifically a device for quickly sealing two sets of coke at the blast furnace tuyeres. Background Technology

[0002] The tuyere set is a crucial component in the blast furnace ironmaking process. Located at the tuyere section, it guides and controls the tuyere flow. During normal blast furnace operation, the tuyere set is exposed to high temperatures, high pressures, and chemical corrosion, necessitating regular inspection and replacement. Replacing the tuyere set is a complex operation that must be carried out during blast furnace shutdown. The pressure and temperature conditions inside the blast furnace during shutdown are more suitable for maintenance and replacement work, thus improving operational efficiency.

[0003] During the replacement of the second tuyere set during blast furnace shutdown, after the damaged tuyere set is removed, the coke inside the furnace collapses and slides into the middle of the main tuyere set, reducing the heat inside the furnace, prolonging the operation time, and making it difficult to restore the blast furnace condition. To prevent coke collapse, cement needs to be used to seal the holes at the front end of the second tuyere set before it is removed. When using cement to seal, it should be done as high as possible towards the top of the tuyere. The original method of sealing was: one person would roll cement into a 100mm ball and manually throw it into the second tuyere set, then use a sealing rake to tamp it down until the coke at the front end of the second tuyere set was sealed. The problems with this method were that the operator's cement throwing position was inaccurate, the cement was thrown in frequently and for long periods of time, multiple operators were needed to work together, the sealing efficiency was low, the sealing strength was insufficient, and it could not completely prevent the coke from accumulating. Utility Model Content

[0004] The purpose of this utility model is to provide a device that has a reasonable structural design, ingenious concept, is easy to process, has low processing and manufacturing costs, is convenient to operate, saves time and labor, can effectively reduce manpower input, can promptly seal the front end of the two sets of blast furnace tuyeres with cement after dismantling, is safe and reliable to operate, is suitable for operation in narrow spaces, has high work efficiency, effectively seals the coke at the front end of the two sets of blast furnace tuyeres, reduces safety operation risks, and meets the needs of on-site maintenance for quickly sealing the coke of the two sets of blast furnace tuyeres.

[0005] This utility model discloses a device for quickly sealing two sets of coke at a blast furnace tuyeres, comprising a mud container and a mud pusher. The mud pusher is located on the surface of the mud container. The mud container includes a mud holding plate, and a hand-holding connecting rod is fixedly installed on one side wall of the mud holding plate. The mud pusher includes a mud pushing plate, and a mud pushing pull rod is fixedly connected to the side wall of the mud pushing plate. The mud pushing plate is located on the surface of the mud holding plate and is in contact with the mud holding plate.

[0006] The two side walls of the handrail connecting rod are fixedly connected to support rods, and there are two support rods, which are symmetrically arranged along the horizontal center line of the handrail connecting rod.

[0007] The mud-collecting plate, hand-held connecting rod, and mud-pushing rod are horizontally arranged, the mud-pushing plate is perpendicular to the mud-pushing rod, and the two side walls of the mud-collecting plate are fitted to the inner walls of the two sets of first inner holes of the blast furnace tuyeres.

[0008] The angle between the vertical centerline of the support rod and the hand-held connecting rod is 60°-75°, and the end of the support rod is in contact with the inner wall of the second inner hole of the two sets of blast furnace tuyeres.

[0009] The mud-collecting plate is horizontally positioned for placing cement. Its side walls are flush with the inner walls of the first inner holes of the second blast furnace tuyeres, ensuring stability and preventing displacement. A hand-held connecting rod allows operators to easily move and adjust the mud-collecting plate's position. A pusher plate, positioned perpendicular to the pusher rod, pushes cement from the mud-collecting plate surface to the coke area within the front hole of the second blast furnace tuyeres. Repeated use of the pusher plate effectively seals the coke in the hole, preventing collapse after disassembly and ensuring safe and stable blast furnace operation. The combined use of the mud-collecting and pusher plates reduces manpower requirements, improves operation efficiency, lowers safety risks, and meets on-site maintenance needs.

[0010] The angle between the vertical centerline of the support rod and the hand-held connecting rod is 60°-75°. The end of the support rod contacts the inner wall of the second inner hole of the blast furnace tuyere. The mud-collecting plate is placed in the first inner hole of the blast furnace tuyere, forming an isosceles trapezoidal structure. The two side walls of the mud-collecting plate can fit more closely to the inner wall of the first inner hole of the blast furnace tuyere, ensuring a secure fixation and preventing displacement or shaking within the first inner hole, thus ensuring smooth operation. The support rod has a certain angle. After the mud-collecting plate is fixed in the first inner hole of the blast furnace tuyere, the two support rods can be placed in the second inner hole of the blast furnace tuyere, contacting the inner wall of the second inner hole. This provides secondary reinforcement to the mud-collecting container, making its placement safer and more stable, ensuring smooth operation.

[0011] The surface of the mud-collecting plate is fixedly connected with two limiting rods. The limiting rods are symmetrically arranged along the horizontal centerline of the hand-held connecting rod, and a mud-pushing rod groove is formed between the limiting rods. A mud-pushing rod is installed in the mud-pushing rod groove.

[0012] Two limiting rods are fixedly connected to the surface of the mud-collecting plate, forming a mud-pushing rod slot between them. A mud-pushing rod is installed in the mud-pushing rod slot. When it is necessary to manually hold the mud-pushing rod to move the mud-pushing plate, the cement on the surface of the mud-collecting plate is pushed to the coke in the front hole of the second set of blast furnace tuyeres. Repeated use of the mud-pushing plate can block the coke and cement in the hole. The mud-pushing rod can move along the mud-pushing rod slot. The limiting rods limit the mud-pushing rod, making the pushing smoother. At the same time, the limiting rods prevent the mud-pushing plate from being pulled out of the surface of the mud-collecting plate after being pulled back by the mud-pushing rod, ensuring stable operation.

[0013] The mud-bearing plate is an isosceles trapezoidal structure.

[0014] The mud pusher has a semi-circular structure.

[0015] A first handle is fixedly installed at the end of the hand-holding connecting rod; a second handle is fixedly installed at the end of the mud-pushing rod.

[0016] The first handle is located at the end of the hand-holding connecting rod, making it easier to operate. The second handle is located at the end of the mud-pushing lever, allowing for more flexible and convenient operation of the mud-pushing lever and mud-pushing plate.

[0017] The beneficial effects of this utility model are:

[0018] 1) The mud-collecting plate is horizontally positioned for placing cement. Its side walls are flush with the inner walls of the first inner holes of the second blast furnace tuyeres, ensuring stability and preventing displacement. A hand-held connecting rod allows operators to easily move and adjust the mud-collecting plate's position. A pusher plate, positioned perpendicular to the pusher rod, is located on the surface of the mud-collecting plate and in contact with it. This allows for easy pushing of cement from the mud-collecting plate to the coke in the front hole of the second blast furnace tuyeres. Repeated use of the pusher plate can seal the coke in the hole, preventing coke collapse after disassembly and ensuring safe and stable blast furnace operation. The combined use of the mud-collecting and pusher plates reduces manpower requirements, improves operation efficiency, lowers safety risks, and meets on-site maintenance needs.

[0019] 2) The angle between the vertical centerline of the support rod and the hand-held connecting rod is 60°-75°. The end of the support rod contacts the inner wall of the second inner hole of the blast furnace tuyere. The mud-holding plate is placed in the first inner hole of the blast furnace tuyere, and is set as an isosceles trapezoidal structure. The two side walls of the mud-holding plate can fit more closely with the inner wall of the first inner hole of the blast furnace tuyere, and be firmly fixed to prevent the mud-holding plate from shifting or shaking in the first inner hole of the blast furnace tuyere, ensuring smooth operation. The support rod is set at a certain angle. After the mud-holding plate is fixed in the first inner hole of the blast furnace tuyere, the two support rods can be placed in the second inner hole of the blast furnace tuyere, contacting the inner wall of the second inner hole of the blast furnace tuyere, which can play a secondary reinforcement role for the mud-holding vessel, making the placement of the mud-holding vessel safer and more stable, ensuring smooth operation.

[0020] 3) Two limiting rods are fixedly connected to the surface of the mud-collecting plate, forming a mud-pull rod slot between them. A mud-pull rod is installed in the mud-pull rod slot. When it is necessary to manually hold the mud-pull rod to move the mud-pulling plate, the cement on the surface of the mud-collecting plate is pushed to the coke in the front hole of the second set of blast furnace tuyeres. Repeated use of the mud-pulling plate can block the coke and cement in the hole. The mud-pull rod can move along the mud-pull rod slot. The limiting rods limit the mud-pull rod, making the pushing smoother. At the same time, the limiting rods prevent the mud-pulling plate from being pulled out of the surface of the mud-collecting plate after being pulled back by the mud-pull rod, ensuring stable operation.

[0021] 4) The first handle is located at the end of the hand-holding connecting rod, which makes it easier to operate by holding the first handle. The second handle is located at the end of the mud-pushing lever, which makes it easier to operate the mud-pushing lever and the mud-pushing plate.

[0022] 5) The device has a reasonable structural design, ingenious concept, is easy to process, has low processing and manufacturing costs, is convenient to operate, saves time and labor, and can effectively reduce manpower input. After the two sets of blast furnace tuyeres are removed, the front end of the two sets of blast furnace tuyeres can be sealed with cement in a timely manner. The operation is safe and reliable, suitable for operation in narrow spaces, and has high work efficiency. It effectively seals the coke at the front end of the two sets of blast furnace tuyeres, reducing the risk of safety operation. The device is currently in use and has good performance. It meets the needs of on-site maintenance for quickly sealing the coke of the two sets of blast furnace tuyeres. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the structure of the mud container in this utility model;

[0025] Figure 3 This is a schematic diagram of the mud pusher in this utility model.

[0026] In the diagram: 1. Mud-holding plate; 2. Hand-held connecting rod; 201. Hand-held first handle; 3. Support rod; 4. Mud-pushing pull rod slot; 5. Mud-pushing plate; 6. Mud-pushing pull rod; 601. Second handle; 7. Limiting rod; 8. Two sets of first inner holes for blast furnace tuyeres; 9. Two sets of second inner holes for blast furnace tuyeres. Detailed Implementation

[0027] Example 1.

[0028] This utility model includes a mud-holding plate 1, a hand-holding connecting rod 2, a first handle 201, a support rod 3, a mud-pushing plate 5, a mud-pushing pull rod 6, a second handle 601, two sets of first inner holes 8 for the blast furnace tuyere, and two sets of second inner holes 9 for the blast furnace tuyere. Specifically, the mud-holding plate 1 has a hand-holding connecting rod 2 fixedly installed on one side wall; the mud pusher includes a mud-pushing plate 5, and a mud-pushing pull rod 6 fixedly connected to the side wall of the mud-pushing plate 5. The mud-pushing plate 5 is located on the surface of the mud-holding plate 1 and is in contact with the mud-holding plate 1.

[0029] The two side walls of the handrail connecting rod 2 are fixedly connected with two support rods 3, which are symmetrically arranged along the horizontal center line of the handrail connecting rod 2.

[0030] The mud-holding plate 1, the hand-held connecting rod 2, and the mud-pushing rod 6 are arranged horizontally, and the mud-pushing plate 5 is arranged perpendicular to the mud-pushing rod 6. The two side walls of the mud-holding plate 1 are fitted to the inner walls of the two sets of first inner holes 8 of the blast furnace tuyeres.

[0031] The angle between the vertical centerline of the support rod 3 and the hand-held connecting rod 2 is 60°-75°, and the end of the support rod 3 is in contact with the inner wall of the second inner hole 9 of the blast furnace tuyeres.

[0032] The mud-bearing plate 1 is an isosceles trapezoidal structure.

[0033] The mud-pushing plate 5 has a semi-circular structure.

[0034] The end of the hand-holding connecting rod 2 is fixedly equipped with a first handle 201; the end of the mud-pushing rod 6 is fixedly equipped with a second handle 601.

[0035] The mud-collecting plate 1 has a short side length of 300 mm, a long side length of 600 mm, a width of 300 mm, and a thickness of 30 mm. The hand-held connecting rod 2 has a length of 2500 mm. The mud-pushing pull rod 6 has a length of 3000 mm. The mud-pushing plate 5 has a length of 250 mm and a thickness of 30 mm. The mud-collecting plate 1 and the mud-pushing plate 5 are made of steel plate. The hand-held connecting rod 2, the first handle 201, the support rod 3, the mud-pushing pull rod 6, and the second handle 601 are made of round steel.

[0036] Instructions for use: Before disassembling the two sets of blast furnace tuyeres, the mud-collecting plate 1 can be set horizontally. Cement is placed on the surface of the mud-collecting plate 1, and the two side walls of the mud-collecting plate 1 are placed against the inner wall of the first inner hole 8 of the two sets of blast furnace tuyeres. The position of the mud-collecting plate 1 is adjusted by operating the hand-held connecting rod 2 and the first handle 201. The two support rods 3 are placed inside the first inner hole 8 of the two sets of blast furnace tuyeres, set as an isosceles trapezoidal structure. The two side walls of the mud-collecting plate 1 can fit more closely with the inner wall of the first inner hole 8 of the two sets of blast furnace tuyeres, and be fixed firmly to prevent the mud-collecting plate 1 from shifting or shaking inside the first inner hole 8 of the two sets of blast furnace tuyeres, ensuring that the entire mud-collecting device is fixed firmly. Then, the pusher plate 5 is placed... The surface of the mud-collecting plate 1 allows the mud-pushing rod 6 to be positioned above the hand-held connecting rod 2. By holding the second handle 601, the mud-pushing rod 6 and the mud-pushing plate 5 can be operated to push the cement on the surface of the mud-collecting plate 1 to the coke in the front hole of the second blast furnace tuyeres. Repeated use of the mud-pushing plate 5 can seal the coke in the hole with cement, thus sealing and fixing the coke and preventing the coke from collapsing after the second blast furnace tuyeres are disassembled, ensuring the safe and stable operation of the blast furnace. The combined use of the mud-collecting device and the mud-pushing device can reduce the excessive manpower input of operators, and the operation is more convenient, the work efficiency is high, the safety risks are reduced, and the needs of on-site maintenance are met.

[0037] Example 2.

[0038] This utility model includes a mud-holding plate 1, a hand-holding connecting rod 2, a first handle 201, a support rod 3, a mud-pushing rod slot 4, a mud-pushing plate 5, a mud-pushing rod 6, a second handle 601, a limiting rod 7, two sets of first inner holes 8 for blast furnace tuyeres, and two sets of second inner holes 9 for blast furnace tuyeres. Specifically, the mud-holding plate 1 has a hand-holding connecting rod 2 fixedly installed on one side wall; the mud pusher includes a mud-pushing plate 5, and a mud-pushing rod 6 fixedly connected to the side wall of the mud-pushing plate 5. The mud-pushing plate 5 is located on the surface of the mud-holding plate 1 and is in contact with the mud-holding plate 1.

[0039] The two side walls of the handrail connecting rod 2 are fixedly connected with two support rods 3, which are symmetrically arranged along the horizontal center line of the handrail connecting rod 2.

[0040] The mud-holding plate 1, the hand-held connecting rod 2, and the mud-pushing rod 6 are arranged horizontally, and the mud-pushing plate 5 is arranged perpendicular to the mud-pushing rod 6. The two side walls of the mud-holding plate 1 are fitted to the inner walls of the two sets of first inner holes 8 of the blast furnace tuyeres.

[0041] The angle between the vertical centerline of the support rod 3 and the hand-held connecting rod 2 is 60°-75°, and the end of the support rod 3 is in contact with the inner wall of the second inner hole 9 of the blast furnace tuyeres.

[0042] The surface of the mud-collecting plate 1 is fixedly connected with two limiting rods 7. The limiting rods 7 are symmetrically arranged along the horizontal center line of the hand-held connecting rod 2, and a mud-pushing rod groove 4 is formed between the limiting rods 7. A mud-pushing rod 6 is provided in the mud-pushing rod groove 4.

[0043] The mud-bearing plate 1 is an isosceles trapezoidal structure.

[0044] The mud-pushing plate 5 has a semi-circular structure.

[0045] The end of the hand-holding connecting rod 2 is fixedly equipped with a first handle 201; the end of the mud-pushing rod 6 is fixedly equipped with a second handle 601.

[0046] The mud-collecting plate 1 has a short side length of 300 mm, a long side length of 600 mm, a width of 300 mm, and a thickness of 30 mm. The hand-held connecting rod 2 has a length of 2500 mm. The mud-pushing pull rod 6 has a length of 3000 mm. The mud-pushing plate 5 has a length of 250 mm and a thickness of 30 mm. The mud-collecting plate 1 and the mud-pushing plate 5 are made of steel plate. The hand-held connecting rod 2, the first handle 201, the support rod 3, the mud-pushing pull rod 6, and the second handle 601 are made of round steel.

[0047] Instructions for use: Before disassembling the two sets of blast furnace tuyeres, the mud-collecting plate 1 can be set horizontally. Cement is placed on the surface of the mud-collecting plate 1, and the two side walls of the mud-collecting plate 1 are placed against the inner wall of the first inner hole 8 of the two sets of blast furnace tuyeres. The position of the mud-collecting plate 1 is adjusted by operating the hand-held connecting rod 2 and the first handle 201. The two support rods 3 are placed inside the first inner hole 8 of the two sets of blast furnace tuyeres, set as isosceles trapezoidal structures. The two side walls of the mud-collecting plate 1 can fit more closely with the inner wall of the first inner hole 8 of the two sets of blast furnace tuyeres, and are fixed firmly to prevent the mud-collecting plate 1 from shifting or shaking inside the first inner hole 8 of the two sets of blast furnace tuyeres, ensuring that the entire mud-collecting container is fixed firmly. Then, the pusher plate 5 is placed on the surface of the mud-collecting plate 1, and the pusher rod 6 is placed... The pusher rod 6, positioned within the groove 4 between the two limiting rods 7, can move along the groove 4. The pusher rod 6 and pusher plate 5 can be operated by holding the second handle 601, pushing the cement on the surface of the mud-collecting plate 1 to the coke in the front hole of the blast furnace tuyeres. Repeated use of the pusher plate 5 can seal the coke in the hole with cement, effectively sealing and fixing the coke, preventing coke collapse after the blast furnace tuyeres are disassembled, and ensuring the safe and stable operation of the blast furnace. The limiting rods 7 limit the pusher rod 6, making the pushing smoother. The limiting rods 7 also prevent the pusher plate 5 from being pulled back from the surface of the mud-collecting plate 1 after being pulled back by the pusher rod 6, ensuring stable operation. The combined use of the mud-collecting device and the pusher reduces the need for excessive manpower, makes operation more convenient and efficient, reduces safety risks, and meets the needs of on-site maintenance.

Claims

1. A device for replacing the coke in the double set of blast furnace tuyeres for quick sealing, characterized in that: The device includes a mud container and a mud pusher. The mud pusher is located on the surface of the mud container. The mud container includes a mud holding plate (1), and a hand-held connecting rod (2) is fixedly connected to one side wall of the mud holding plate (1). The mud pusher includes a mud pushing plate (5), and a mud pushing pull rod (6) is fixedly connected to the side wall of the mud pushing plate (5). The mud pushing plate (5) is located on the surface of the mud holding plate (1) and is in contact with the mud holding plate (1). Support rods (3) are fixedly connected to both side walls of the hand-held connecting rod (2). There are two support rods (3), which are symmetrically arranged along the horizontal center line of the hand-held connecting rod (2). The mud holding plate (1), the hand-held connecting rod (2), and the mud pushing pull rod (6) are arranged horizontally. The mud plate (5) is set perpendicular to the mud pusher rod (6), and the two side walls of the mud holding plate (1) are set to fit the inner wall of the first inner hole (8) of the second set of blast furnace tuyeres; the angle between the vertical center line of the support rod (3) and the hand-held connecting rod (2) is 60°-75°, and the end of the support rod (3) contacts the inner wall of the second inner hole (9) of the second set of blast furnace tuyeres; the surface of the mud holding plate (1) is fixedly connected with a limiting rod (7), and there are two limiting rods (7). The limiting rods (7) are symmetrically arranged along the horizontal center line of the hand-held connecting rod (2), and a mud pusher rod groove (4) is formed between the limiting rods (7). A mud pusher rod (6) is set in the mud pusher rod groove (4).

2. The device for quickly plugging coke for replacing the blast furnace tuyere doublet according to claim 1, characterized in that: The mud-bearing plate (1) is an isosceles trapezoidal structure.

3. The device for quickly plugging coke for replacing the tuyere of a blast furnace according to claim 2, characterized in that: The mud pusher (5) has a semi-circular structure.

4. The device for quickly plugging coke for replacing the tuyere of a blast furnace according to claim 3, characterized in that: The end of the hand-held connecting rod (2) is fixedly equipped with a first handle (201); the end of the mud-pushing rod (6) is fixedly equipped with a second handle (601).

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