Air leakage adjusting device suitable for blast furnace belly pipe

Abstract

An air leakage adjusting device suitable for blast furnace belly pipes comprises a plurality of adjusting parts, the number of the adjusting parts is the same as that of the belly pipes, and all the adjusting parts are arranged under the belly pipes corresponding to the adjusting parts in position. The adjusting part is arranged on a blast furnace platform; the adjusting part comprises an impact mechanism and an adjusting mechanism; the adjusting mechanism comprises a supporting piece, a guiding piece and an adjusting piece. The supporting piece is arranged on a blast furnace platform; the guiding piece is arranged on the supporting piece, and the adjusting piece is arranged on the guiding piece. According to the utility model, the air leakage condition of the belly pipe can be found at the first time, and the belly pipe can be adjusted at the first time to reset.

Description

Technical Field

[0001] The utility model relates to an air leakage adjustment device, in particular to a device capable of adjusting a blast furnace direct blowing pipe when the pipe deviates and causes air leakage, and belongs to the technical field of blast furnace direct blowing pipe adjustment equipment. Background Art

[0002] The direct blowing pipe is a device that sprays coal gas and oxygen into the pipe in the furnace through the blast system of the blast furnace; the hot air in the direct blowing pipe comes from the hot blast furnace, and the airflow of thousands of degrees flows into the blast furnace through the direct blowing pipe to participate in the reaction; during use, due to thermal expansion and contraction, the direct blowing pipe and the small sleeve are often not in close contact, resulting in air leakage, and in severe cases, redness and burning accidents; the main reason is that due to the structure of the overall direct blowing pipe, after a period of online use, the thermal expansion and contraction are large, and the lower part is not in close contact with the spherical surface of the small sleeve; at present, the deviation and air leakage of the direct blowing pipe are mainly discovered by the inspection staff during the inspection process; this leads to the fact that the leakage of the direct blowing pipe cannot be discovered in time, which has an adverse effect on the production of the blast furnace; in addition, for the adjustment of the deviation of the direct blowing pipe, it is necessary to stop production and adjust the direct blowing pipe, which affects the production progress of the blast furnace; therefore, a leakage adjustment device is needed, which is required to be able to detect the deviation of the direct blowing pipe in time and adjust it at the first time, thereby ensuring the smooth progress of the hot air supply operation of the direct blowing pipe and ensuring the normal operation of the production in the blast furnace. Utility Model Content

[0003] The utility model aims to overcome the deficiencies of the prior art and provide a wind leakage adjustment device suitable for a blast furnace direct blowing pipe, which can timely detect the wind leakage of the direct blowing pipe and adjust it at the first time.

[0004] The problem described in the utility model is solved by the following technical solutions:

[0005] A wind leakage adjustment device suitable for a blast furnace direct blowing pipe comprises a plurality of adjustment parts, and the number of the adjustment parts is consistent with the number of the direct blowing pipes, and each adjustment part is arranged directly below the direct blowing pipe corresponding to its position; the adjustment part is arranged on a blast furnace platform; the adjustment part comprises an impact mechanism and an adjustment mechanism; the adjustment mechanism comprises a support member, a guide member and an adjustment member; the support member is arranged on the blast furnace platform; the guide member is arranged on the support member, and the adjustment member is arranged on the guide member.

[0006] The above-mentioned wind leakage adjustment device is suitable for a blast furnace direct blowing pipe, and the support member includes a wind speed sensor and a vertical support plate; the vertical support plate is arranged on the blast furnace platform, and the vertical support plate is located directly below the direct blowing pipe; the wind speed sensor is arranged at the top of the vertical support plate, and the wind speed sensor is located in front of the air inlet sleeve; the signal output end of the wind speed sensor is connected to the signal input end of the CPU.

[0007] The above-mentioned air leakage adjustment device is suitable for the blast furnace direct blowing pipe, and the guide part includes a striking rod and a positioning piece; the top of the vertical support plate is provided with an inclined hole, and the striking rod is inserted in the inclined hole at the top of the vertical support plate, and the center line of the striking rod points to the air inlet sleeve; the side wall of the striking rod is provided with a strip groove along its length direction, and the strip groove is provided with teeth along the length direction of the striking rod; the top of the side wall of the vertical support plate is provided with a hinge seat; the positioning piece is hingedly arranged on the hinge seat, and one end of the positioning piece is clamped with the teeth in the strip groove of the striking rod; a torsion spring is arranged between the positioning piece and the hinge seat.

[0008] The above-mentioned air leakage adjustment device is suitable for blast furnace direct blowing pipes, and the adjustment part includes a trapezoidal block, a slider and a connecting piece; the connecting piece is arranged on the end face of the striking rod close to the air port sleeve; a sliding bar is arranged on the end face of the trapezoidal block close to the striking rod, and the slider is slidably arranged on the sliding bar of the trapezoidal block; a hinged seat is arranged on the end face of the slider close to the connecting piece, and one end of the connecting piece and the hinged seat on the slider form an articulated matching connection structure; the bottom end face of the trapezoidal block contacts the inner wall of the air port sleeve, and the top end face of the trapezoidal block contacts the outer wall of the direct blowing pipe.

[0009] The above-mentioned air leakage adjustment device is suitable for blast furnace direct blowing pipes, and the impact mechanism includes a pillar, an impact cylinder and a striking head; the pillar is arranged on the blast furnace platform; the shell of the impact cylinder is arranged on the pillar, and the end of the impact cylinder piston rod is provided with a striking head; the center line of the impact cylinder piston rod coincides with the center line of the striking rod; the signal input end of the impact cylinder is connected to the signal output end of the CPU.

[0010] The utility model monitors the air leakage of the direct blowing pipe in real time through the wind sensor; through the cooperation of the guide piece and the impact mechanism, the adjusting piece is effectively inserted between the air inlet sleeve and the direct blowing pipe and the head of the direct blowing pipe is lifted to block the air leakage gap again. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0012] Figure 2 It is a partial enlarged structural schematic diagram of the utility model A.

[0013] The list of numbers in the figure is: 1. blast furnace, 2. straight blowing pipe, 3. wind speed sensor, 4. vertical support plate, 5. striking rod, 6. positioning plate, 7. trapezoidal block, 8. slider, 9. connecting plate, 10. support, 11. impact cylinder, 12. striking head. DETAILED DESCRIPTION

[0014] See also Figure 1 and Figure 2The utility model includes a plurality of adjustment parts, and the number of the adjustment parts is consistent with the number of the straight blowing pipes 2, and each adjustment part is arranged directly below the straight blowing pipe 2 corresponding to its position; the adjustment part is arranged on the platform of the blast furnace 1; the adjustment part includes an impact mechanism and an adjustment mechanism; the adjustment mechanism is used to lift the head of the straight blowing pipe, and the impact mechanism provides a forward thrust to the adjustment mechanism;

[0015] The adjustment mechanism comprises a support member, a guide member and an adjustment member; the support member is arranged on the platform of the blast furnace 1; the guide member is arranged on the support member, and the adjustment member is arranged on the guide member.

[0016] The support member includes a wind speed sensor 3 and a vertical support plate 4; the vertical support plate 4 is arranged on the platform of the blast furnace 1, and the vertical support plate 4 is located directly below the direct blowing pipe 2; the wind speed sensor 3 is arranged at the top of the vertical support plate 4, and the wind speed sensor 3 is located in front of the air inlet sleeve; the wind speed sensor 3 is used to monitor the ambient wind speed at the direct blowing pipe in real time. Since the wind pressure in the direct blowing pipe is extremely large, when air leakage occurs, the wind speed sensor 3 can detect the air leakage in the first time; the signal output end of the wind speed sensor 3 is connected to the signal input end of the CPU.

[0017] The guide member includes a striking rod 5 and a positioning piece 6; an inclined hole is provided at the top of the vertical support plate 4, and the striking rod 5 is inserted into the inclined hole at the top of the vertical support plate 4, and the center line of the striking rod 5 points to the air outlet sleeve; the side wall of the striking rod 5 is provided with a strip groove along its length direction, and teeth are provided in the strip groove along the length direction of the striking rod 5; a hinge seat is provided at the top of the side wall of the vertical support plate 4; the positioning piece 6 is hingedly provided on the hinge seat, and one end of the positioning piece 6 is engaged with the teeth in the strip groove of the striking rod 5; a torsion spring is provided between the positioning piece 6 and the hinge seat; the torsion spring provides the positioning piece 6 with a force to press on the striking rod 5; when the striking rod 5 moves toward the air outlet sleeve, the positioning piece 6 does not block it and is naturally pushed away; but when the striking rod 5 is subjected to a backward force, the positioning piece 6 is engaged with the teeth in the strip groove of the striking rod 5, making it impossible to retreat, thereby limiting the position of the striking rod 5 and preventing the trapezoidal block 7 from retreating.

[0018] The adjusting part includes a trapezoidal block 7, a slider 8 and a connecting piece 9; the connecting piece 9 is arranged on the end face of the striking rod 5 close to the air outlet sleeve; a sliding bar is arranged on the end face of the trapezoidal block 7 close to the striking rod 5, and the slider 8 is slidably arranged on the sliding bar of the trapezoidal block 7; a hinge seat is arranged on the end face of the slider 8 close to the connecting piece 9, and one end of the connecting piece 9 forms a hinged matching connection structure with the hinge seat on the slider 8; through the cooperation of the slider 8 and the hinge seat thereon, the trapezoidal block 7 can be inserted between the air outlet sleeve and the straight blowing pipe at a suitable angle and position during the advancement process, ensuring that the bottom end of the trapezoidal block 7 can be reliably pressed against the inner wall of the air outlet sleeve, and the top end of the trapezoidal block 7 can reliably support the outer wall of the straight blowing pipe; the bottom end face of the trapezoidal block 7 contacts the inner wall of the air outlet sleeve, and the top end face of the trapezoidal block 7 contacts the outer wall of the straight blowing pipe 2.

[0019] The impact mechanism includes a support 10, an impact cylinder 11 and a striking head 12; the support 10 is arranged on the platform of the blast furnace 1; the shell of the impact cylinder 11 is arranged on the support 10, and the end of the piston rod of the impact cylinder 11 is provided with a striking head 12; the center line of the piston rod of the impact cylinder 11 coincides with the center line of the striking rod 5; the impact cylinder 11 drives the striking head 12 to strike the end of the striking rod 5, thereby knocking the trapezoidal block forward and finally lifting the head of the straight blowing pipe; the signal input end of the impact cylinder 11 is connected to the signal output end of the CPU.

[0020] The model of the CPU module in the utility model is 87C196KC.

[0021] The steps for using this device are as follows:

[0022] Each direct blowing pipe is provided with an adjustment part under which the working status of each direct blowing pipe is monitored in real time through the wind speed sensor in the adjustment part. When the wind speed sensed by a certain wind speed sensor is abnormally high, it indicates that the direct blowing pipe is deviating downward and leaking air; then the impact cylinder corresponding to the wind speed sensor of the abnormal wind speed is started, and the impact head intermittently strikes the end of the striking rod. While striking the striking rod, the trapezoidal block moves forward and lifts up the direct blowing pipe. The existence of the positioning piece makes the striking rod only move forward and cannot move backward, which ensures that the trapezoidal block can be The head of the straight blowing pipe is lifted up to prevent it from moving at will. Since there is wire drawing at the tail of the straight blowing pipe itself, the tail of the straight blowing pipe will give the straight blowing pipe a force to hold up the air outlet sleeve. Therefore, when the straight blowing pipe is lifted up, the straight blowing pipe automatically corrects and connects well with the air outlet sleeve. During the action of the impact cylinder and the gradual rise of the head of the straight blowing pipe, the wind speed sensor monitors the wind speed changes in real time. When the wind speed returns to the normal range, it means that the problem of deviation and air leakage of the direct blowing pipe has been solved. The action of the impact cylinder is stopped, and the problem of deviation and air leakage of the direct blowing pipe has been solved.

Claims

1. A wind leakage adjustment device suitable for a blast furnace direct blowing pipe, characterized in that: The invention comprises a plurality of adjustment parts, the number of which is consistent with the number of the straight blowing pipes (2), and each adjustment part is arranged directly below the straight blowing pipe (2) corresponding to its position; the adjustment part is arranged on the platform of the blast furnace (1); the adjustment part comprises an impact mechanism and an adjustment mechanism; the adjustment mechanism comprises a support member, a guide member and an adjustment member; the support member is arranged on the platform of the blast furnace (1); the guide member is arranged on the support member, and the adjustment member is arranged on the guide member; the support member comprises a wind speed sensor (3) and a vertical support plate (4); the vertical support plate (4) is arranged on the platform of the blast furnace (1), and the vertical support plate (4) is located directly below the straight blowing pipe (2); the wind speed sensor (3) is arranged at the top end of the vertical support plate (4), and the wind speed sensor (3) is located in front of the air port sleeve; the signal output end of the wind speed sensor (3) is connected to the signal input end of the CPU.

2. The air leakage adjustment device for blast furnace direct blowing pipe according to claim 1 is characterized in that: The guide member comprises a striking rod (5) and a positioning piece (6); an oblique hole is provided at the top end of the vertical support plate (4), and the striking rod (5) is inserted into the oblique hole at the top end of the vertical support plate (4), and the center line of the striking rod (5) points to the air outlet sleeve; a strip groove is provided on the side wall of the striking rod (5) along its length direction, and teeth are provided in the strip groove along the length direction of the striking rod (5); a hinge seat is provided at the top end of the side wall of the vertical support plate (4); the positioning piece (6) is hingedly provided on the hinge seat, and one end of the positioning piece (6) is engaged with the teeth in the strip groove of the striking rod (5); a torsion spring is provided between the positioning piece (6) and the hinge seat.

3. The air leakage adjustment device suitable for blast furnace direct blowing pipe according to claim 2 is characterized in that: The adjusting member comprises a trapezoidal block (7), a sliding block (8) and a connecting piece (9); the connecting piece (9) is arranged on the end surface of the striking rod (5) close to the air outlet sleeve; a sliding bar is arranged on the end surface of the trapezoidal block (7) close to the striking rod (5), and the sliding block (8) is slidably arranged on the sliding bar of the trapezoidal block (7); a hinge seat is arranged on the end surface of the sliding block (8) close to the connecting piece (9), and one end of the connecting piece (9) and the hinge seat on the sliding block (8) form a hinged matching connection structure; the bottom end surface of the trapezoidal block (7) contacts the inner wall of the air outlet sleeve, and the top end surface of the trapezoidal block (7) contacts the outer wall of the straight blowing pipe (2).

4. The air leakage adjustment device for blast furnace direct blowing pipe according to claim 3 is characterized in that: The impact mechanism comprises a support (10), an impact cylinder (11) and an impact head (12); the support (10) is arranged on a blast furnace (1) platform; the shell of the impact cylinder (11) is arranged on the support (10), and the end of the piston rod of the impact cylinder (11) is provided with an impact head (12); the center line of the piston rod of the impact cylinder (11) coincides with the center line of the impact rod (5); the signal input end of the impact cylinder (11) is connected to the signal output end of the CPU.

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