Laser non-contact quick detection head for blast furnace distribution chute inclination angle

Abstract

The utility model relates to the technical field of steel smelting, and disclose a blast furnace cloth chute angle laser non -contact type quick detection head, including blast furnace body, the inside blast furnace body is provided with mounting plate, the top fixedly connected with mounting bracket of mounting plate. The blast furnace cloth chute angle laser non -contact type quick detection head, through the setting of cleaning component, can push the slide in the fixed groove sliding, and further drive the U -shaped rod and cleaning plate to move to the side close to infrared range finder and angle sensor, make cleaning plate can with both detection head accurate contact and complete dust wiping, and the spring elasticity characteristic can assist cleaning plate reset after cleaning, facilitate the subsequent repeated cleaning, this structure does not need manual frequent disassembly and cleaning, can avoid dust covering lens and sensing component, ensure that the distance signal transmission of infrared range finder and the inclination data acquisition of angle sensor are not blocked, greatly reduce the detection data deviation.

Description

Technical Field

[0001] This utility model relates to the field of iron and steel smelting technology, and in particular to a laser non-contact rapid detection head for the tilt angle of blast furnace charging chute. Background Technology

[0002] In the blast furnace smelting process, the charging chute is the core component of the furnace top charging system. Its main function is to evenly distribute the blast furnace raw materials to different areas inside the furnace according to a preset pattern. The chute inclination angle directly determines the landing point and distribution density of the raw materials, which is crucial to the stability of the reaction temperature field inside the furnace, the gas utilization rate, and the smelting efficiency. In order to accurately control the charging effect, it is necessary to use an infrared rangefinder and an inclination sensor for joint detection: the infrared rangefinder can measure the distance parameters between the chute and the reference surface inside the furnace in real time, while the inclination sensor directly obtains the tilt angle data of the chute. The combination of the two enables accurate monitoring of the working status of the chute.

[0003] However, this laser non-contact rapid detection head for the tilt angle of the blast furnace charging chute has the following disadvantages:

[0004] (1) A large amount of dust generated during smelting in the blast furnace tends to adhere to the surface of the detection head, covering the infrared rangefinder lens and the tilt sensor sensing components, which leads to obstructed signal transmission, increased deviation of detection data, and difficulty in meeting the production accuracy requirements.

[0005] (2) Most of the detection probes adopt a fixed installation structure. After installation, the longitudinal height cannot be flexibly adjusted. When the blast furnace needs to change the detection point when adjusting the smelting load, it needs to be disassembled and reinstalled. The operation is cumbersome and affects the continuity of production, which cannot meet the diversified production needs. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] The technical problem solved by the utility model is to provide a laser non-contact rapid detection head for the tilt angle of a blast furnace charging chute that is highly practical, easy to operate, and has a simple structure. This solves the problems mentioned in the background art, such as dust easily adhering to the surface of the detection head and the inability to flexibly adjust the longitudinal height after installation and fixation.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, this utility model is implemented through the following technical solution: a laser non-contact rapid detection head for the tilt angle of a blast furnace charging chute, comprising a blast furnace body, an installation plate disposed inside the blast furnace body, a mounting frame fixedly connected to the top of the installation plate, an infrared rangefinder and a tilt sensor disposed on the side of the mounting frame near the blast furnace body, a cleaning component for cleaning the surface of the infrared rangefinder and the tilt sensor detection head disposed inside the mounting frame, and an adjustment component for adjusting the height of the infrared rangefinder and the tilt sensor disposed inside the mounting frame;

[0010] The cleaning assembly includes an L-shaped support plate fixedly connected to one side of the mounting bracket. The L-shaped support plate has a fixing groove inside, and a slide bar is slidably connected inside the fixing groove. Several U-shaped rods are slidably connected inside the L-shaped support plate, and a cleaning plate is fixedly connected between the several U-shaped rods. An expansion plate is fixedly connected to the bottom of the cleaning plate. A spring is sleeved inside each U-shaped rod, and the end of each U-shaped rod away from the cleaning plate extends into the fixing groove and is fixedly connected to the slide bar.

[0011] The adjustment assembly includes a screw rotatably connected to one end inside the mounting bracket, a fixed rod fixedly connected to the other end inside the mounting bracket, a lifting plate threadedly connected to the outer circumference of the screw, the lifting plate being slidably connected to the outer side of the fixed rod, and a second servo motor fixedly mounted at one end of the top of the mounting bracket.

[0012] Optionally, the spring abuts against the inner wall of the slider and the fixing groove, and the outer expansion plate is inclined to ensure that the slider drives the U-shaped rod and the cleaning plate close to the detection head during cleaning, while ensuring that the cleaning plate is smoothly reset after cleaning.

[0013] Optionally, the infrared rangefinder and tilt sensor are both fixedly installed on one side of the lifting plate, and the output shaft of the second servo motor is fixedly connected to the rotation shaft of the screw. The second servo motor can accurately drive the screw to rotate, ensuring the synchronization and accuracy of the height adjustment of the detection components.

[0014] Optionally, a toothed ring is rotatably installed at the top of the inner wall of the blast furnace body, and a charging chute body is fixedly installed at the bottom of the toothed ring, so that the toothed ring drives the charging chute body to rotate stably within the blast furnace body.

[0015] Optionally, a first servo motor is fixedly installed at the top of the blast furnace body. The output shaft of the first servo motor extends into the interior of the blast furnace body and is fixedly connected to a transmission gear. The transmission gear meshes with a gear ring and can provide stable power for the angle adjustment of the charging chute body.

[0016] Optionally, locking bolts are inserted into the four corners inside the mounting plate. The mounting plate is connected to the blast furnace body through the locking bolts, which can effectively resist the vibration during the operation of the blast furnace and prevent the mounting frame and detection components from shifting.

[0017] (III) Beneficial Effects

[0018] This utility model provides a laser non-contact rapid detection head for the tilt angle of blast furnace charging chute, which has the following advantages:

[0019] 1. This blast furnace charging chute tilt angle laser non-contact rapid detection head, through the setting of the cleaning component, can push the slide bar to slide in the fixed groove, thereby driving the U-shaped rod and the cleaning plate to move closer to the infrared rangefinder and tilt sensor. This allows the cleaning plate to make precise contact with the detection heads of both and complete the dust wiping. The elasticity of the spring can assist the cleaning plate to reset after cleaning, which is convenient for subsequent repeated cleaning. This structure does not require frequent manual disassembly and cleaning, and can avoid dust covering the lens and sensing components. It ensures that the distance signal transmission of the infrared rangefinder and the tilt angle data acquisition of the tilt sensor are not obstructed, and significantly reduces the deviation of the detection data.

[0020] 2. This laser non-contact rapid detection head for the tilt angle of the blast furnace charging chute can drive the screw to rotate through the setting of the adjustment components, so that the lifting plate can be stably raised and lowered along the fixed rod, and the height of the two detection components can be adjusted simultaneously. The entire adjustment process does not require disassembling the detection device and can be completed by motor drive alone. The operation is simple and quick. The detection height can be flexibly adapted according to different smelting conditions to meet diverse production needs and improve the working condition adaptability of the detection device. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall design of this utility model;

[0022] Figure 2 This is an internal sectional view of the present invention;

[0023] Figure 3 This is a schematic diagram of the mounting plate structure of this utility model;

[0024] Figure 4 This is a schematic diagram of the adjustment component of this utility model;

[0025] Figure 5 This is a schematic diagram of the cleaning component of this utility model.

[0026] In the diagram: 1. Blast furnace body; 2. First servo motor; 3. Mounting plate; 4. Adjustment assembly;

[0027] 401. Screw; 402. Fixing rod; 403. Lifting plate; 404. Second servo motor; 5. Cleaning assembly; 501. Cleaning plate; 502. L-shaped support plate; 503. Spring; 504. U-shaped rod; 505. Fixing groove; 506. Outer expansion plate; 6. Infrared rangefinder; 7. Tilt sensor; 8. Mounting bracket; 9. Locking bolt; 10. Gear ring; 11. Transmission gear; 12. Fabric chute body. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0029] Please see Figures 1 to 5 This utility model provides a technical solution: a laser non-contact rapid detection head for the tilt angle of a blast furnace charging chute, including a blast furnace body 1, an installation plate 3 is provided inside the blast furnace body 1, an installation frame 8 is fixedly connected to the top of the installation plate 3, an infrared rangefinder 6 and a tilt sensor 7 are provided on the side of the installation frame 8 near the blast furnace body 1, a cleaning component 5 for cleaning the detection head surface of the infrared rangefinder 6 and the tilt sensor 7 is provided inside the installation frame 8, and an adjustment component 4 for adjusting the height of the infrared rangefinder 6 and the tilt sensor 7 is provided inside the installation frame 8;

[0030] The cleaning component 5 includes an L-shaped support plate 502 fixedly connected to one side of the mounting bracket 8. A fixing groove 505 is formed inside the L-shaped support plate 502, and a slider is slidably connected inside the fixing groove 505. Several U-shaped rods 504 are slidably connected inside the L-shaped support plate 502, and a cleaning plate 501 is fixedly connected between the U-shaped rods 504. An expansion plate 506 is fixedly connected to the bottom of the cleaning plate 501. A spring 503 is fitted inside each of the U-shaped rods 504, and the end of each U-shaped rod 504 away from the cleaning plate 501 extends into the fixing groove 505 and is fixedly connected to the slider, subject to the elastic force of the spring 503. The sliding bar slides within the fixed groove 505, thereby moving the U-shaped rod 504 and the cleaning plate 501 closer to the infrared rangefinder 6 and the tilt sensor 7. This allows the cleaning plate 501 to make precise contact with the detection heads of both devices and complete the dust removal. Furthermore, the elastic properties of the spring 503 assist the cleaning plate 501 in resetting after cleaning, facilitating subsequent repeated cleaning. This structure eliminates the need for frequent manual disassembly and cleaning, preventing dust from covering the lens and sensing components. It ensures unobstructed distance signal transmission from the infrared rangefinder 6 and tilt data acquisition from the tilt sensor 7, significantly reducing detection data deviation and meeting the stringent requirements for detection accuracy in blast furnace smelting.

[0031] The adjustment component 4 includes a screw 401 rotatably connected to one end of the mounting frame 8, and a fixed rod 402 fixedly connected to the other end of the mounting frame 8. A lifting plate 403 is threadedly connected to the outer circumference of the screw 401. The lifting plate 403 is slidably connected to the outer side of the fixed rod 402. A second servo motor 404 is fixedly installed at one end of the top of the mounting frame 8. Starting the second servo motor 404 can drive the screw 401 to rotate, so that the lifting plate 403 can be stably raised and lowered along the fixed rod 402, and the height of the two detection components can be adjusted synchronously. The entire adjustment process does not require disassembling the detection device and can be completed by motor drive. The operation is simple and quick. The detection height can be flexibly adapted according to different smelting conditions to meet diverse production needs and improve the working condition adaptability of the detection device.

[0032] Spring 503 abuts against the inner wall of slide bar and fixing groove 505 to ensure that slide bar drives U-shaped rod 504 and cleaning plate 501 close to detection head during cleaning, and at the same time ensures that cleaning plate 501 is smoothly reset after cleaning. Outer expansion plate 506 is inclined.

[0033] Infrared rangefinder 6 and tilt sensor 7 are both fixedly installed on one side of lifting plate 403. The output shaft of second servo motor 404 is fixedly connected to the rotation shaft of screw 401. Second servo motor 404 can accurately drive screw 401 to rotate, ensuring the synchronization and accuracy of height adjustment of detection components.

[0034] A toothed ring 10 is rotatably installed at the top of the inner wall of the blast furnace body 1, and a feeding chute body 12 is fixedly installed at the bottom of the toothed ring 10, so that the toothed ring 10 drives the feeding chute body 12 to rotate stably inside the blast furnace body 1.

[0035] A first servo motor 2 is fixedly installed at the top of the blast furnace body 1. The output shaft of the first servo motor 2 extends into the interior of the blast furnace body 1 and is fixedly connected to a transmission gear 11. The transmission gear 11 meshes with the gear ring 10. The transmission gear 11 is driven by the first servo motor 2 to mesh with the gear ring 10, which can provide stable power for the angle adjustment of the feeding chute body 12.

[0036] Locking bolts 9 are inserted into the four corners inside the mounting plate 3. The mounting plate 3 is connected to the blast furnace body 1 through the locking bolts 9, which can effectively resist the vibration during the operation of the blast furnace and prevent the mounting frame 8 and detection components from shifting.

[0037] In this invention, the working steps of the device are as follows:

[0038] First step: When it is necessary to wipe the dust off the probe surfaces of the infrared rangefinder 6 and the tilt sensor 7, the spring force of the spring 503 will push the slide bar to slide in the fixed groove 505, thereby driving the U-shaped rod 504 and the cleaning plate 501 to move closer to the infrared rangefinder 6 and the tilt sensor 7, so that the cleaning plate 501 can make precise contact with the detection heads of the two and complete the dust wiping. The elasticity of the spring 503 can assist the cleaning plate 501 to reset after cleaning, which is convenient for subsequent repeated cleaning. This structure does not require frequent manual disassembly and cleaning, and can avoid dust covering the lens and sensing components, ensuring that the distance signal transmission of the infrared rangefinder 6 and the tilt data acquisition of the tilt sensor 7 are not obstructed.

[0039] The second step: When the blast furnace body 1 needs to change the detection point to adjust the smelting load, the second servo motor 404 can be started to drive the screw 401 to rotate, so that the lifting plate 403 can be stably raised and lowered along the fixed rod 402, and the height of the two detection components can be adjusted synchronously. The entire adjustment process does not require disassembling the detection device, and can be completed by motor drive. The operation is simple and quick, and the detection height can be flexibly adapted according to different smelting conditions to meet diverse production needs and improve the working condition adaptability of the detection device.

[0040] It should be noted that the device structure and accompanying drawings of this utility model mainly describe the principle of this utility model. In terms of the technical aspects of this design principle, the setting of the power mechanism, power supply system and control system of the device is not fully described. However, under the premise that those skilled in the art understand the principle of the above utility model, the specific details of its power mechanism, power supply system and control system can be clearly understood. The control method in the application document is automatic control through a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming.

[0041] All standard parts used can be purchased from the market, and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods.

[0042] 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 laser non-contact rapid detection head for the tilt angle of a blast furnace charging chute, comprising a blast furnace body (1), characterized in that: The blast furnace body (1) is provided with an installation plate (3) inside. The top of the installation plate (3) is fixedly connected to an installation frame (8). An infrared rangefinder (6) and an inclination sensor (7) are provided on the side of the installation frame (8) near the blast furnace body (1). A cleaning component (5) for cleaning the surface of the detection head of the infrared rangefinder (6) and the inclination sensor (7) is provided inside the installation frame (8). An adjustment component (4) for adjusting the height of the infrared rangefinder (6) and the inclination sensor (7) is provided inside the installation frame (8). The cleaning component (5) includes an L-shaped support plate (502) fixedly connected to one side of the mounting bracket (8). The L-shaped support plate (502) has a fixing groove (505) inside. A slide bar is slidably connected inside the fixing groove (505). A plurality of U-shaped rods (504) are slidably connected inside the L-shaped support plate (502). A cleaning plate (501) is fixedly connected between the plurality of U-shaped rods (504). An expansion plate (506) is fixedly connected to the bottom of the cleaning plate (501). A spring (503) is sleeved inside each of the U-shaped rods (504). The end of each U-shaped rod (504) away from the cleaning plate (501) extends into the fixing groove (505) and is fixedly connected to the slide bar. The adjustment assembly (4) includes a screw (401) rotatably connected to one end inside the mounting bracket (8), a fixing rod (402) fixedly connected to the other end inside the mounting bracket (8), a lifting plate (403) threadedly connected to the outer circumference of the screw (401), the lifting plate (403) being slidably connected to the outer side of the fixing rod (402), and a second servo motor (404) fixedly installed at one end of the top of the mounting bracket (8).

2. The laser non-contact rapid detection head for the tilt angle of the blast furnace charging chute according to claim 1, characterized in that: The spring (503) abuts against the inner wall of the slider and the fixing groove (505), and the outer expansion plate (506) is inclined.

3. The laser non-contact rapid detection head for the tilt angle of the blast furnace charging chute according to claim 1, characterized in that: The infrared rangefinder (6) and tilt sensor (7) are both fixedly installed on one side of the lifting plate (403), and the output shaft of the second servo motor (404) is fixedly connected to the rotation shaft of the screw (401).

4. The laser non-contact rapid detection head for the tilt angle of the blast furnace charging chute according to claim 1, characterized in that: A toothed ring (10) is rotatably installed on the top of the inner wall of the blast furnace body (1), and a feeding chute body (12) is fixedly installed on the bottom of the toothed ring (10).

5. The laser non-contact rapid detection head for the tilt angle of the blast furnace charging chute according to claim 1, characterized in that: A first servo motor (2) is fixedly installed at the top of the blast furnace body (1). The output shaft of the first servo motor (2) extends into the interior of the blast furnace body (1) and is fixedly connected to a transmission gear (11). The transmission gear (11) meshes with a gear ring (10).

6. The laser non-contact rapid detection head for the tilt angle of the blast furnace charging chute according to claim 1, characterized in that: Locking bolts (9) are inserted into the four corners inside the mounting plate (3), and the mounting plate (3) is connected to the blast furnace body (1) through the locking bolts (9).

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