Deflection detection device suitable for blast furnace tuyere sleeve

Abstract

The deflection detection device comprises a long rod, an electronic clinometer, a semicircular frame and a positioning part, the long rod is arranged in the middle of the side wall of the semicircular frame, and the center line of the long rod is parallel to the axis of the semicircular frame. The electronic clinometer is arranged at one end, far away from the semicircular frame, of the long rod; the two positioning parts are symmetrically arranged at the two ends of the end face, away from the long rod, of the semicircular frame. The signal output end of the electronic clinometer is connected with the signal input end of the CPU; a display screen is arranged on the side wall of the long rod, and the signal input end of the display screen is connected with the signal output end of the CPU. According to the utility model, the tuyere sleeve deflection detection efficiency is improved, and the labor intensity of workers is reduced.

Description

Technical Field

[0001] The utility model relates to a tuyere sleeve skew detection device, in particular to a device that can assist workers in quickly detecting whether the tuyere sleeve is skewed, belonging to the technical field of tuyere sleeve detection equipment. Background Technique

[0002] The blast furnace blowing system is an important participating system in the reaction inside the blast furnace. The blast furnace blowing system injects high-pressure air into the blast furnace to participate in the reaction. In the blast furnace blowing system, the tuyere sleeve is an important device. The air in the blowing system finally enters the blast furnace through the tuyere sleeve. It can be seen that the role of the tuyere sleeve is significant. The tuyere sleeve may be skewed during use. After the tuyere sleeve is displaced in the blast furnace blowing system, it has a great impact on the blast furnace blowing system, easily shortening the tuyere raceway, affecting the distribution of the primary coal gas flow, and even causing a large area of tuyere damage. The severely damaged tuyeres cannot inject coal, and the gas volume in the area where the non-injecting tuyeres are located decreases. At the same time, compared with the normal situation, the position of the softening-melting zone at this part becomes lower, the gas flow distribution in the circumferential direction of the softening-melting zone is disrupted, and the secondary coal gas flow distribution of the blast furnace is affected, restricting the further intensification of smelting in the blast furnace. If it is not discovered in time, the pulverized coal is likely to damage the tuyere in a short time, and even cause an accident of burning through the air duct, forcing the coal injection to be stopped and the ore-coke ratio to be reduced to maintain, and so on. At present, the detection of the axis angle of the tuyere sleeve is completed manually. Workers hold tools such as a spirit level to roughly measure the inclination angle of the axis of the tuyere sleeve to judge whether it is skewed. This method has low accuracy and takes a long time. Therefore, a detection device is needed that can assist workers in efficiently detecting whether the tuyere sleeve is skewed. Content of the Utility Model

[0003] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a skew detection device applicable to the blast furnace tuyere sleeve, which can not only reduce the labor intensity of workers but also improve the detection efficiency of tuyere sleeve skew.

[0004] The problems of the utility model are solved by the following technical solutions:

[0005] A skew detection device applicable to the blast furnace tuyere sleeve includes a long rod, an electronic inclinometer, a semi-circular frame, and a positioning part. The long rod is arranged at the center position of the side wall of the semi-circular frame, and the center line of the long rod is parallel to the axis line of the semi-circular frame. The electronic inclinometer is arranged at the end of the long rod away from the semi-circular frame. The number of the positioning parts is two, and they are symmetrically arranged at both ends of the end face of the semi-circular frame away from the long rod. The signal output end of the electronic inclinometer is connected to the signal input end of the CPU. A display screen is arranged on the side wall of the long rod, and the signal input end of the display screen is connected to the signal output end of the CPU.

[0006] The above-mentioned deflection detection device applicable to the blast furnace tuyere sleeve, the positioning part includes an intermediate plate and a positioning mechanism; a support rod is arranged at the center of the intermediate plate, and the other end of the support rod is connected to the end of the semicircular frame far from the long rod; the number of the positioning mechanisms is two, and they are symmetrically arranged at both ends of the intermediate plate.

[0007] The above-mentioned deflection detection device applicable to the blast furnace tuyere sleeve, the positioning mechanism includes a motor, a rotating shaft, a telescopic member and a triggering member; the motor is arranged at one end of the end face of the intermediate plate close to the support rod; a hole is arranged at one end of the side wall of the intermediate plate, and the rotating shaft is axially connected in the hole at the end of the intermediate plate; the end of the output shaft of the motor is connected to one end of the rotation, and the other end of the rotating shaft is connected to the telescopic member; the triggering member is arranged on the telescopic member.

[0008] The above-mentioned deflection detection device applicable to the blast furnace tuyere sleeve, the telescopic member includes a positioning cylinder, a sliding rod and an electric cylinder; one end of the side wall of the positioning cylinder is connected to the end of the rotating shaft far from the motor; a hole is arranged at the end of the positioning cylinder, and the electric cylinder is arranged at the bottom end of the inner hole of the positioning cylinder, the sliding rod is inserted into the inner hole of the positioning cylinder, and the end of the piston rod of the electric cylinder is connected to the end of the sliding rod; the center line of the positioning cylinder and the center line of the sliding rod are parallel.

[0009] The above-mentioned deflection detection device applicable to the blast furnace tuyere sleeve, the triggering member includes a touch switch, a fixed block, a pressing block and an alarm lamp; the fixed block is arranged at one end of the end face of the sliding rod far from the motor; a hole is arranged on the end face of the fixed block far from the motor, and the touch switch is arranged in the hole of the fixed block, the pressing block is inserted into the hole of the fixed block, and a spring is arranged between the pressing block and the inner wall of the hole of the fixed block; the alarm lamp is arranged at one end of the end face of the sliding rod close to the motor; the signal output end of the touch switch is connected to the signal input end of the CPU; the signal input end of the alarm lamp is connected to the signal output end of the CPU.

[0010] The above-mentioned deflection detection device applicable to the blast furnace tuyere sleeve, the plane of the end face of the pressing block far from the fixed block is perpendicular to the center line of the long rod.

[0011] The utility model accurately detects the inclination angle of the tuyere sleeve through an electronic inclinometer, and then knows its deflection situation; by aligning the positioning part with the end of the tuyere sleeve, the purpose of aligning the center line of the long rod with the axis line of the tuyere sleeve is achieved, and by measuring the inclination of the long rod, the inclination of the tuyere sleeve is known. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic three-dimensional structure diagram of the utility model.

[0013] The list of each label in the figure is as follows: 1. Long rod, 2. Electronic inclinometer, 3. Semicircular frame, 4. Intermediate plate, 5. Motor, 6. Positioning cylinder, 7. Sliding rod, 8. Fixed block, 9. Alarm lamp. Detailed implementation mode

[0014] Refer to Figure 1 , the utility model includes a long rod 1, an electronic inclinometer 2, a semi-circular frame 3 and a positioning part; the long rod 1 is arranged at the center position of the side wall of the semi-circular frame 3, and the central axis of the long rod 1 is parallel to the axis of the semi-circular frame 3; the electronic inclinometer 2 is arranged at one end of the long rod 1 away from the semi-circular frame 3; through the positioning part, the central axis of the long rod 1 can be parallel to the axis of the air outlet sleeve, and then the inclination angle of the long rod 1 is detected by the electronic inclinometer 2, and the detected inclination angle of the long rod 1 is the inclination change angle of the air outlet sleeve; the number of the positioning parts is two, and they are symmetrically arranged at both ends of the end face of the semi-circular frame 3 away from the long rod 1; the signal output end of the electronic inclinometer 2 is connected to the signal input end of the CPU; a display screen is arranged on the side wall of the long rod 1, and the signal input end of the display screen is connected to the signal output end of the CPU; the inclination angle detected by the electronic inclinometer 2 is displayed by the display screen.

[0015] The positioning part includes an intermediate plate 4 and a positioning mechanism; a support rod is arranged at the center of the intermediate plate 4, and the other end of the support rod is connected to the end of the end face of the semi-circular frame 3 away from the long rod 1; the number of the positioning mechanisms is two, and they are symmetrically arranged at both ends of the intermediate plate 4; the four positioning mechanisms cooperate to align the end of the air outlet sleeve. When the four positioning mechanisms are all aligned with the end face of the air outlet sleeve, at this time, the central axis of the long rod 1 is parallel to the axis of the air outlet sleeve; only by measuring the inclination of the long rod 1 can the inclination of the air outlet sleeve be known.

[0016] The positioning mechanism includes a motor 5, a rotating shaft, a telescopic part and a triggering part; the motor 5 is arranged at one end of the end face of the intermediate plate 4 close to the support rod; a hole is arranged at one end of the side wall of the intermediate plate 4, and the rotating shaft is axially connected in the hole at the end of the intermediate plate 4; the end of the output shaft of the motor 5 is connected to one end of the rotating shaft, and the other end of the rotating shaft is connected to the telescopic part; the triggering part is arranged on the telescopic part.

[0017] The telescopic part includes a positioning cylinder 6, a sliding rod 7 and an electric cylinder; one end of the side wall of the positioning cylinder 6 is connected to the other end of the rotating shaft away from the motor 5; the motor 5 can drive the positioning cylinder 6 to rotate, and then drive the triggering part to move to different positions on the end face of the air outlet sleeve; a hole is arranged at the end of the positioning cylinder 6, and the electric cylinder is arranged at the bottom end of the inner hole of the positioning cylinder 6. The sliding rod 7 is inserted into the inner hole of the positioning cylinder 6, and the end of the piston rod of the electric cylinder is connected to the end of the sliding rod 7; the electric cylinder can drive the sliding rod 7 to slide, so as to adjust the relative position of the triggering part and make it smoothly contact the end of the air outlet sleeve; the central axis of the positioning cylinder 6 is parallel to the central axis of the sliding rod 7.

[0018] The trigger includes a touch switch, a fixed block 8, a pressing block, and an alarm lamp 9; the fixed block 8 is arranged at one end of the end face of the slide bar 7 away from the motor 5; a hole is provided on the end face of the fixed block 8 away from the motor 5, and the touch switch is arranged in the hole of the fixed block 8. The pressing block is inserted into the hole of the fixed block 8, and a spring is arranged between the pressing block and the inner wall of the hole of the fixed block 8. When the pressing block touches the end of the air duct sleeve, the pressing block touches the signal of the touch switch, indicating that the pressing block has been fitted with the end of the air duct sleeve at this time; the alarm lamp 9 is arranged at one end of the end face of the slide bar 7 close to the motor 5. After the pressing block touches the signal of the touch switch, the alarm lamp 9 lights up to remind the staff that the pressing block is aligned in place; the signal output end of the touch switch is connected to the signal input end of the CPU; the signal input end of the alarm lamp 9 is connected to the signal output end of the CPU.

[0019] The plane of the end face of the pressing block away from the fixed block 8 is perpendicular to the center line of the long rod 1.

[0020] In the utility model, the model of the CPU module is 87C196KC.

[0021] Working principle: When it is necessary to measure the inclination angle of the air duct sleeve, hold the long rod 1 and drive the rest of the parts close to the air duct sleeve. Among them, the semi-circular frame 3 advances under the direct blowing pipe. The semi-circular frame 3 semi-surrounds the direct blowing pipe under the direct blowing pipe. When advancing to the position of the end face of the air duct sleeve, start the electric cylinder and the motor 5 so that the four slide bars 7 adjust the positions of their ends so that the four pressing blocks can all face the end face of the air duct sleeve. Then push the long rod 1 so that each pressing block touches the end face of the air duct sleeve. When the four alarm lamps 9 are all on, it means that the planes of the four pressing blocks are all aligned with the end face of the air duct sleeve at this time. Since the long rod 1 is perpendicular to the end face of the pressing block, the center line of the long rod 1 is parallel to the axis line of the air duct sleeve. At this time, the data displayed on the display screen of the electronic inclinometer is the inclination data of the air duct sleeve.

Claims

1. A deflection detection device applicable to a blast furnace tuyere sleeve, characterized in that: It includes a long rod (1), an electronic inclinometer (2), a semi-circular frame (3) and a positioning part; the long rod (1) is arranged at the center position of the side wall of the semi-circular frame (3), and the center line of the long rod (1) is parallel to the axis line of the semi-circular frame (3); the electronic inclinometer (2) is arranged at one end of the long rod (1) away from the semi-circular frame (3); the number of the positioning parts is two, and they are symmetrically arranged at both ends of the end face of the semi-circular frame (3) away from the long rod (1); the signal output end of the electronic inclinometer (2) is connected to the signal input end of the CPU; a display screen is arranged on the side wall of the long rod (1), and the signal input end of the display screen is connected to the signal output end of the CPU.

2. The deflection detection device applicable to the blast furnace tuyere sleeve according to claim 1, wherein: The positioning part includes an intermediate plate (4) and a positioning mechanism; a support rod is arranged at the center of the intermediate plate (4), and the other end of the support rod is connected to the end of the end face of the semi-circular frame (3) away from the long rod (1); the number of the positioning mechanisms is two, and they are symmetrically arranged at both ends of the intermediate plate (4).

3. The deflection detection device applicable to the blast furnace tuyere sleeve according to claim 2, characterized in that: The positioning mechanism includes a motor (5), a rotating shaft, a telescopic part and a triggering part; the motor (5) is arranged at one end of the end face of the intermediate plate (4) close to the support rod; a hole is arranged at one end of the side wall of the intermediate plate (4), and the rotating shaft is pivotally connected in the hole at the end of the intermediate plate (4); the end of the output shaft of the motor (5) is connected to one end of the rotation, and the other end of the rotating shaft is connected to the telescopic part; the triggering part is arranged on the telescopic part.

4. The deflection detection device for the blast furnace tuyere sleeve according to claim 3, characterized in that: The telescopic part includes a positioning cylinder (6), a sliding rod (7) and an electric cylinder; one end of the side wall of the positioning cylinder (6) is connected to the end of the rotating shaft away from the motor (5); a hole is arranged at the end of the positioning cylinder (6), and the electric cylinder is arranged at the bottom end of the inner hole of the positioning cylinder (6), the sliding rod (7) is inserted into the inner hole of the positioning cylinder (6), and the end of the piston rod of the electric cylinder is connected to the end of the sliding rod (7); the center line of the positioning cylinder (6) is parallel to the center line of the sliding rod (7).

5. The deflection detection device applicable to the blast furnace tuyere sleeve according to claim 4, characterized in that: The triggering part includes a touch switch, a fixed block (8), a pressing block and an alarm lamp (9); the fixed block (8) is arranged at one end of the end face of the sliding rod (7) away from the motor (5); a hole is arranged on the end face of the fixed block (8) away from the motor (5), and the touch switch is arranged in the hole of the fixed block (8), the pressing block is inserted into the hole of the fixed block (8), and a spring is arranged between the pressing block and the inner wall of the hole of the fixed block (8); the alarm lamp (9) is arranged at one end of the end face of the sliding rod (7) close to the motor (5); the signal output end of the touch switch is connected to the signal input end of the CPU; the signal input end of the alarm lamp (9) is connected to the signal output end of the CPU.

6. The deflection detection device applicable to a blast furnace tuyere sleeve according to claim 5, wherein: The plane of the end face of the pressing block away from the fixed block (8) is perpendicular to the center line of the long rod (1).

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