A radiation pyrometer measuring device and a method of using the same

By designing a radiation pyrometer measuring device for an annealing furnace, the combination of inclination installation and limiting components is used to solve the gap in the online detection and correction method of the diaphragm installation on the annealing furnace, and the temperature measurement accuracy is improved. Easy to disassemble and adjust the device.

CN114993065BActive Publication Date: 2025-02-18BENGANG STEEL PLATES CO LTD +1
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Patent Information

Application Number
CN202210699308.4
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-06-20
Publication Date
2025-02-18
Estimated Expiration
2042-06-20

AI Technical Summary

Technical Problem

On the annealing furnace, the online detection and calibration method of the skewed radiant pyrometer installed has not been effectively solved in China, resulting in inaccurate measurement data.

Method used

A radiation pyrometer measuring device was designed, including limiting components, swing rods, fixed rods, rotating shafts, radiation pyrometer measuring instrument body, placement box, etc. The radiation pyrometer measuring instrument body is installed by tilting, and the push plate and The movement of the card plate completes the limit work and adjusts the inclination angle of the radiation pyrometer measuring instrument body.

Benefits of technology

By installing the radiation pyrometer measuring device inclined, the temperature measurement accuracy is improved, the domestic gap is filled, and the reference for temperature-belt process control is provided, and it is convenient for the disassembly and assembly and angle adjustment of the radiation pyrometer measuring instrument body.

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Abstract

The present invention discloses a radiation pyrometer measuring device and a method for using the same, comprising a limit assembly, an arc plate, an arc hole, a limit column, a rotating ring, a screw, a movable hole and a movable block, wherein the limit assembly comprises a movable seat, a screw, a mounting block, a first side plate, a top plate, a second side plate and a rotating block, wherein the first side plate and the second side plate are respectively fixedly connected on both sides of the bottom end of the top plate, and the mounting blocks are respectively fixedly connected on both sides of the first side plate, and mounting holes are provided on the mounting blocks, the first side plate and the second side plate are horizontally rotatably connected with the screw, and one end of the screw is fixedly connected with the rotating block, and the movable seat is matched with the screw; the invention, by correcting the temperature measurement accuracy of the radiation pyrometer measuring instrument body, not only fills the blank of the inclined installation of the radiation pyrometer measuring instrument body by tilting the radiation pyrometer measuring instrument body, but also serves as a reference for temperature process control.
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Description

Technical Field

[0001] The invention relates to the technical field of sealed furnace instrument detection, in particular to a radiation pyrometer measuring device and a use method thereof. Background Art

[0002] The radiation pyrometer is installed in the annealing furnace and is an instrument that can measure the true temperature of the running strip by non-contact radiation.

[0003] The entire process of continuous annealing in the annealing furnace mainly controls the temperature of the strip steel, and is assisted by the adjustment and control of process section speed, furnace pressure, atmosphere and tension, so as to achieve annealing process treatment for strip steels of different steel grades and specifications, so as to obtain product performance and surface quality that meet user needs.

[0004] The actual temperature detection and display of the strip is particularly important for the entire production control and operation process, providing visual guarantee to reduce the performance inconsistency of products of different specifications.

[0005] Most of the radiation pyrometers on annealing furnaces in the same industry are installed vertically to the furnace shell. When the vertical method is adopted, the thermocouple can be naturally hung down to directly contact the strip steel to measure the real temperature of the strip steel during temperature correction. When the radiation pyrometer is installed at an angle to the furnace shell, the temperature correction needs to consider the influence of the high temperature atmosphere in the annealing furnace on the hardness and softening degree of the thermocouple, so as to avoid the situation where the thermocouple does not directly contact the surface of the strip steel and cause inaccurate measurement data. However, the method of online detection and correction of radiation pyrometers installed at a small angle is blank in China, so it is very necessary to design a radiation pyrometer measurement device and its use method. Summary of the invention

[0006] The object of the present invention is to provide a radiation pyrometer measuring device and a method of using the same to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a radiation pyrometer measuring device, comprising a limit assembly, a swing rod, a fixed rod, a rotating shaft, a radiation pyrometer measuring instrument body, a placement box, a connecting rod, an indicating rod, an arc plate, an arc hole, an angle measuring plate, a limit column, a rotating ring, a clamping block, a push plate, a screw, a baffle, a clamping plate, a moving hole, a moving block, a placement groove and a clamping slot, the limit assembly comprises a moving seat, a screw rod, a mounting block, a first side plate, a top plate, a second side plate and a rotating block, and both sides of the bottom end of the top plate The first side plate and the second side plate are respectively fixedly connected, and the two sides of the first side plate are respectively fixedly connected with mounting blocks, and mounting holes are provided on the mounting blocks. The first side plate and the second side plate are horizontally rotatably connected with screw rods, and one end of the screw rod is fixedly connected with the rotating block, and the screw rod is matched with a moving seat, and the top end of the moving seat is hinged with one end of a swing rod, and the other end of the swing rod is hinged to one side of the bottom end of the placement box, and a through hole is provided at the connection between the top plate and the swing rod, and the radiation pyrometer measuring instrument body is placed inside the placement box.

[0008] Preferably, the outside of the radiation pyrometer measuring instrument body is fixedly connected with a card block, and a card slot is provided at the connection between the placement box and the card block, and a placement groove is provided at the connection between the placement box and the measuring end of the radiation pyrometer measuring instrument body, and the card slot and the card block are mutually engaged and connected.

[0009] Preferably, a baffle is fixedly connected to the body of the radiation pyrometer measuring instrument, a square hole is opened at the center of the baffle, and a clamping plate is placed inside the square hole, and the clamping plate is fixedly connected to the push plate.

[0010] Preferably, moving blocks are fixedly connected to both sides of the bottom end of the push plate, and the moving blocks are located in the moving holes, and the moving holes are opened on the placement box.

[0011] Preferably, one end of a screw rod is rotatably connected to the push plate, a rotating ring is sleeved and fixed on the other end of the screw rod, and a screw hole is provided at the connection between the placement box and the screw rod.

[0012] Preferably, one end of a rotating shaft is fixedly connected to both sides of the placement box, and the rotating shaft is sleeved and fixed in a bearing arranged on a fixed rod, the fixed rod is fixedly connected to the top of the top plate, and the other end of the rotating shaft is fixedly connected to a connecting rod, and an indicating rod is sleeved and fixed on the connecting rod, and the indicating rod is correspondingly connected to an angle measuring plate.

[0013] Preferably, the angle measuring plate is fixedly connected to one side of the fixing rod, and an arc plate is fixedly connected to one side of the fixing rod, and an arc hole is opened on the arc plate, and a limiting column is slidably connected in the arc hole, and the limiting column is fixedly connected to the placement box.

[0014] A method for using a radiation pyrometer measuring device, comprising step 1, marking; step 2, checking; step 3, adjusting; step 4, comparing; step 5, recording; step 6, operating;

[0015] In the above step 1, firstly, during the shutdown period of the annealing furnace, a dot treatment is performed at the position where the radiation pyrometer measuring instrument body is required to be installed in the annealing furnace, and at this time, the strip steel in the annealing furnace is in a stationary and tensioned state;

[0016] In the above step 2, a high temperature resistant thermocouple prepared in advance is inserted into the dotted position in step 1 to simulate the hot state of the annealing furnace to measure the strip steel test. At this time, the O2 content in the annealing furnace is 20-60%. The operator can enter the annealing furnace to check and confirm the simulated laser dot and the position where the thermocouple contacts the surface of the strip steel. After the staff has checked and found it to be qualified, the high temperature resistant thermocouple is then removed from the dotted position.

[0017] In the above step three, the radiation pyrometer measuring instrument body is installed at the dotted position, and during the installation process, the rotating ring is manually rotated to drive the rotation of the screw, so that the screw is moved on the placement box, and then the push plate and the moving block are driven to move, and then the radiation pyrometer measuring instrument body is placed in the placement box. At this time, the card block provided on the radiation pyrometer measuring instrument body is engaged with the card slot, and then the rotating ring is rotated in the reverse direction to make the push plate and the moving block move in the reverse direction. With the reverse movement of the push plate, the push plate is fixedly connected to the square hole opened on the baffle plate by the card plate, and the reverse rotation of the rotating ring can be stopped, and then the rotating block is rotated to drive the rotation of the screw rod. Since the screw rod and the moving seat are connected in a cooperative manner, the moving seat is driven by the screw rod during the rotation process. The movement of the movable seat and the placement box is connected by a swing rod, and then when the movable seat drives the swing rod to swing during the movement, the swing rod is driven to swing, thereby driving the placement box to swing. At this time, the rotating shaft, the connecting rod and the indicating rod all swing with the swing of the placement box. Since the indicating rod corresponds to the angle measuring plate, the inclination angle of the placement box is adjusted during the swinging of the indicating rod. Since the radiation pyrometer measuring instrument body is placed in the placement box, the inclination angle of the radiation pyrometer measuring instrument body is adjusted. When the inclination angle of the radiation pyrometer measuring instrument body is consistent with the inclination angle of the dotting, the rotation of the rotating block can be stopped, and then the measuring end of the radiation pyrometer measuring instrument body is inserted into the dotting position, and the annealing furnace is fixedly connected to the mounting block.

[0018] In the above step 4, the furnace is then started to heat up, and the annealing furnace enters the insulation mode when the temperature is 500-700°C. The strip steel stops running and prepares for the formal comparison test. At this time, the running strip steel is in an insulation and static state. The temperature of the central control HMI monitoring screen obtained by the radiation pyrometer measuring instrument is recorded to create the test conditions;

[0019] In the above step 5, the temperature of the strip steel measuring point measured by the radiation pyrometer measuring instrument body is recorded, and then the radiation pyrometer measuring instrument body is removed, and the steps of step 2 are repeated to insert a thermocouple into the peephole flange of the furnace shell to measure the strip steel temperature, and after a period of time, the temperature of the digital display connected to the thermocouple is read and recorded;

[0020] In the above step six, the radiation emissivity coefficient of the radiation pyrometer measuring instrument body is then corrected, and the radiation pyrometer measuring instrument body is calibrated, and then the normal production operator can monitor the HMI screen to control the process operation.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention utilizes the correction of the temperature measurement accuracy of the radiation pyrometer measuring instrument body, and by tilting the radiation pyrometer measuring instrument body, not only fills the blank of tilted installation of the radiation pyrometer measuring instrument body, but also serves as a reference for temperature process control, and the tilted installation of the radiation pyrometer measuring instrument body utilizes the movement of the push plate and the clamping plate to complete the limiting work of the radiation pyrometer measuring instrument body and the baffle, which is conducive to the disassembly and assembly of the radiation pyrometer measuring instrument body, and at the same time, the tilt angle of the radiation pyrometer measuring instrument body and the placement box can be adjusted by the swing of the swing rod, which is convenient for fixing the radiation pyrometer measuring instrument body and the placement box after the angle adjustment, thereby ensuring that the tilt angle of the radiation pyrometer measuring instrument body and the placement box remains unchanged. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a front cross-sectional view of a local structure of the present invention;

[0024] Figure 3 This is a schematic diagram of the installation of the card block in the present invention;

[0025] Figure 4 This is a schematic diagram of the installation of the card board in the present invention;

[0026] Figure 5 It is a schematic diagram of the installation of the rotating shaft in the present invention;

[0027] Figure 6 The schematic diagram of the installation block of the present invention is shown in FIG.

[0028] Figure 7 is a flow chart of the method of the present invention;

[0029] In the figure: 1. limit assembly; 101. moving seat; 102. screw rod; 103. mounting block; 104. first side plate; 105. top plate; 106. second side plate; 107. rotating block; 2. swing rod; 3. fixed rod; 4. rotating shaft; 5. radiation pyrometer measuring instrument body; 6. placement box; 7. connecting rod; 8. indicating rod; 9. arc plate; 10. arc hole; 11. angle measuring plate; 12. limit column; 13. rotating ring; 14. clamping block; 15. push plate; 16. screw rod; 17. baffle; 18. clamping plate; 19. moving hole; 20. moving block; 21. placement groove; 22. clamping groove. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] See also Figure 1-6, an embodiment of the present invention: a radiation pyrometer measuring device, including a limit assembly 1, a swing rod 2, a fixed rod 3, a rotating shaft 4, a radiation pyrometer measuring instrument body 5, a placement box 6, a connecting rod 7, an indicating rod 8, an arc plate 9, an arc hole 10, an angle measuring plate 11, a limit column 12, a rotating ring 13, a clamping block 14, a push plate 15, a screw 16, a baffle 17, a clamping plate 18, a moving hole 19, a moving block 20, a placement groove 21 and a clamping groove 22, the limit assembly 1 includes a moving seat 101, a screw 102, a mounting block 103, a first side plate 104, a top plate 105, a second side plate 106 and a rotating block 107, and the bottom ends of the top plate 105 are respectively fixedly connected with the first The side plate 104 and the second side plate 106, and the two sides of the first side plate 104 are respectively fixedly connected with the mounting blocks 103, and the mounting blocks 103 are provided with mounting holes, the first side plate 104 and the second side plate 106 are horizontally rotatably connected with the screw rod 102, and one end of the screw rod 102 is fixedly connected with the rotating block 107, and the screw rod 102 is matched with the movable seat 101, the top end of the movable seat 101 is hinged with one end of the swing rod 2, and the other end of the swing rod 2 is hinged to the bottom end of the placement box 6, and a through hole is provided at the connection between the top plate 105 and the swing rod 2, and the radiation pyrometer measuring instrument body 5 is placed inside the placement box 6, and the radiation pyrometer measuring instrument body 5 is fixedly connected to the outside The card block 14, at the same time, a card slot 22 is provided at the connection between the placement box 6 and the card block 14, and a placement groove 21 is provided at the connection between the placement box 6 and the measuring end of the radiation pyrometer measuring instrument body 5, and at the same time, the card slot 22 and the card block 14 are mutually engaged and connected, and a baffle 17 is fixedly connected to the radiation pyrometer measuring instrument body 5, and a square hole is provided at the center of the baffle 17, and a card plate 18 is placed inside the square hole, and the card plate 18 is fixedly connected to the push plate 15, and the bottom sides of the push plate 15 are fixedly connected with a moving block 20, and the moving block 20 is located in the moving hole 19, and the moving hole 19 is provided on the placement box 6, and one end of the screw 16 is rotatably connected to the push plate 15, and the other end of the screw 16 is sleeved and fixed There is a rotating ring 13, and a screw hole is provided at the connection between the placement box 6 and the screw rod 16. One end of the rotating shaft 4 is fixedly connected to both sides of the placement box 6, and the rotating shaft 4 is sleeved and fixed in the bearing set on the fixed rod 3. The fixed rod 3 is fixedly connected to the top of the top plate 105. At the same time, the other end of the rotating shaft 4 is fixedly connected to the connecting rod 7, and the indicating rod 8 is sleeved and fixed on the connecting rod 7. The indicating rod 8 is correspondingly connected to the angle measuring plate 11, and the angle measuring plate 11 is fixedly connected to one side of the fixed rod 3. At the same time, an arc plate 9 is fixedly connected to one side of the fixed rod 3, and an arc hole 10 is provided on the arc plate 9. At the same time, a limiting column 12 is slidably connected in the arc hole 10, and the limiting column 12 is fixedly connected to the placement box 6.

[0032] See also Figure 7, an embodiment of the present invention: a method for using a radiation pyrometer measuring device, comprising step one, marking; step two, checking; step three, adjusting; step four, comparing; step five, recording; step six, operating;

[0033] In the above step 1, firstly, during the shutdown period of the annealing furnace, a dot treatment is performed at the position where the radiation pyrometer measuring instrument body 5 is required to be installed in the annealing furnace, and at this time, the strip steel in the annealing furnace is in a stationary and tensioned state;

[0034] In the above step 2, a high temperature resistant thermocouple prepared in advance is inserted into the dotted position in step 1 to simulate the hot state of the annealing furnace to measure the strip steel test. At this time, the O2 content in the annealing furnace is 20-60%. The operator can enter the annealing furnace to check and confirm the simulated laser dot and the position where the thermocouple contacts the surface of the strip steel. After the staff has checked and found it to be qualified, the high temperature resistant thermocouple is then removed from the dotted position.

[0035] In the above step three, the radiation pyrometer measuring instrument body 5 is installed at the dotted position, and during the installation, the rotating ring 13 is manually rotated to drive the rotation of the screw 16, so that the screw 16 is located on the placement box 6 and moves, thereby driving the movement of the push plate 15 and the moving block 20, and then the radiation pyrometer measuring instrument body 5 is placed in the placement box 6. At this time, the card block 14 provided on the radiation pyrometer measuring instrument body 5 is engaged with the card slot 22, and then the rotating ring 13 is rotated in the reverse direction to make the push plate 15 and the moving block 20 move in the reverse direction. With the reverse movement of the push plate 15, the push plate 15 is fixedly connected to the card plate 18 in the square hole opened on the baffle 17, and the reverse rotation of the rotating ring 13 can be stopped. Then, the rotating block 107 is rotated to drive the rotation of the screw rod 102. Since the screw rod 102 and the moving seat 101 are connected in cooperation, the screw rod 102 is used to rotate During the process, the moving seat 101 is driven to move, and the moving seat 101 is connected to the placement box 6 by the swing rod 2, and then when the moving seat 101 is moved, the swing rod 2 is driven to swing, thereby driving the placement box 6 to swing. At this time, the rotating shaft 4, the connecting rod 7 and the indicating rod 8 are all swung with the swing of the placement box 6. Since the indicating rod 8 corresponds to the angle measuring plate 11, when the indicating rod 8 is swinging, the inclination angle of the placement box 6 is adjusted. Since the radiation pyrometer measuring instrument body 5 is placed in the placement box 6, the inclination angle of the radiation pyrometer measuring instrument body 5 is adjusted. When the inclination angle of the radiation pyrometer measuring instrument body 5 is consistent with the inclination angle of the dotting, the rotation of the rotating block 107 can be stopped, and then the measuring end of the radiation pyrometer measuring instrument body 5 is inserted into the dotting position, and the annealing furnace is fixedly connected to the mounting block 103;

[0036] In the above step 4, the furnace is then started to heat up, and the annealing furnace enters the insulation mode when the temperature is 500-700°C, the strip steel stops running, and the formal comparison test is prepared. At this time, the running strip steel is in an insulation static state, and the temperature of the central control HMI monitoring screen detected by the radiation pyrometer measuring instrument body 5 is recorded to create test conditions;

[0037] In the above step 5, the temperature of the strip steel measuring point measured by the radiation pyrometer measuring instrument body 5 is recorded, and then the radiation pyrometer measuring instrument body 5 is removed, and the steps of step 2 are repeated to insert a thermocouple into the peephole flange of the furnace shell to measure the strip steel temperature, and after a period of time, the temperature of the digital display connected to the thermocouple is read and recorded;

[0038] In the above step 6, the radiation emissivity coefficient of the radiation pyrometer measuring instrument body 5 is then corrected, and the radiation pyrometer measuring instrument body 5 is calibrated, and then the normal production operator can monitor the HMI screen to control the process operation.

[0039] Based on the above, the advantage of the present invention is that the present invention, by installing the radiation pyrometer measuring instrument body 5 at an angle, and during the installation process, using it in conjunction with a high-temperature resistant thermocouple for testing, is conducive to enabling the radiation pyrometer measuring instrument body 5 to obtain standard data, and at the same time, the radiation pyrometer measuring instrument body 5 is installed at an angle, which fills the market gap in the inclined installation of the radiation pyrometer measuring instrument body 5. At the same time, after the angle of the radiation pyrometer measuring instrument body 5 is adjusted, the inclination angle of the radiation pyrometer measuring instrument body 5 can be fixed, thereby ensuring the consistency of the inclination angle during multiple installations of the radiation pyrometer measuring instrument body 5, thereby improving the accuracy of the detection data.

[0040] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A radiation pyrometer measuring device, comprising a limit assembly (1), an arc plate (9), an arc hole (10), a limit column (12), a rotating ring (13), a screw (16), a moving hole (19) and a moving block (20), characterized in that: The limiting assembly (1) comprises a movable seat (101), a screw rod (102), a mounting block (103), a first side plate (104), a top plate (105), a second side plate (106) and a rotating block (107); the first side plate (104) and the second side plate (106) are respectively fixedly connected to the two sides of the bottom end of the top plate (105); the mounting block (103) is respectively fixedly connected to the two sides of the first side plate (104); and the mounting hole is opened on the mounting block (103); the first side plate (104) and the second side plate (106) are respectively fixedly connected to the two sides of the bottom end of the top plate (105); and the first side plate (104) and the second side plate (106) are respectively fixedly connected to the two sides of the first side plate (104); and the mounting hole is opened on the mounting block (103); and the first side plate (104) and the second side plate (106) are respectively fixedly connected to the two sides of the first side plate (104 ... A screw rod (102) is horizontally rotatably connected to the side plate (106), and one end of the screw rod (102) is fixedly connected to a rotating block (107). The screw rod (102) is also matched with a movable seat (101). The top end of the movable seat (101) is hingedly connected to one end of a swing rod (2). The other end of the swing rod (2) is hingedly connected to one side of the bottom end of the placement box (6). A through hole is provided at the connection between the top plate (105) and the swing rod (2). A radiation pyrometer measuring instrument body (5) is placed inside the placement box (6).

2. A radiation pyrometer measuring device according to claim 1, characterized in that: The outside of the radiation pyrometer measuring instrument body (5) is fixedly connected with a card block (14), and a card slot (22) is provided at the connection between the placement box (6) and the card block (14), and a placement groove (21) is provided at the connection between the placement box (6) and the measuring end of the radiation pyrometer measuring instrument body (5), and the card slot (22) and the card block (14) are mutually engaged and connected.

3. A radiation pyrometer measuring device according to claim 2, characterized in that: A baffle (17) is fixedly connected to the radiation pyrometer measuring instrument body (5), a square hole is opened at the center of the baffle (17), and a clamping plate (18) is placed inside the square hole, and the clamping plate (18) is fixedly connected to the push plate (15).

4. A radiation pyrometer measuring device according to claim 3, characterized in that: The two sides of the bottom end of the push plate (15) are fixedly connected with moving blocks (20), and the moving blocks (20) are located in the moving holes (19), and the moving holes (19) are opened on the placement box (6).

5. A radiation pyrometer measuring device according to claim 4, characterized in that: One end of a screw rod (16) is rotatably connected to the push plate (15), the other end of the screw rod (16) is sleeved and fixed with a rotating ring (13), and a screw hole is provided at the connection between the placement box (6) and the screw rod (16).

6. A radiation pyrometer measuring device according to claim 5, characterized in that: One end of the rotating shaft (4) is fixedly connected to both sides of the placement box (6), and the rotating shaft (4) is sleeved and fixed in a bearing provided on the fixed rod (3). The fixed rod (3) is fixedly connected to the top of the top plate (105). The other end of the rotating shaft (4) is fixedly connected to a connecting rod (7), and an indicating rod (8) is sleeved and fixed on the connecting rod (7). The indicating rod (8) is correspondingly connected to an angle measuring plate (11).

7. A radiation pyrometer measuring device according to claim 6, characterized in that: The angle measuring plate (11) is fixedly connected to one side of the fixing rod (3), and at the same time, an arc plate (9) is fixedly connected to one side of the fixing rod (3), and an arc hole (10) is opened on the arc plate (9), and at the same time, a limiting column (12) is slidably connected in the arc hole (10), and the limiting column (12) is fixedly connected to the placement box (6).

8. The method for using a radiation pyrometer measuring device according to claim 7, comprising step 1, marking; step 2, checking; step 3, adjusting; step 4, comparing; step 5, recording; step 6, operating; characterized in that: In the above step 1, firstly, during the shutdown period of the annealing furnace, a dot treatment is performed at the position where the radiation pyrometer measuring instrument body (5) is required to be installed in the annealing furnace, and at this time, the strip steel in the annealing furnace is in a stationary and tensioned state; In the above step 2, a high temperature resistant thermocouple prepared in advance is inserted into the dotted position in step 1 to simulate the hot state of the annealing furnace to measure the strip steel test. At this time, the O2 content in the annealing furnace is 20-60%. The operator can enter the annealing furnace to check and confirm the simulated laser dot and the position where the thermocouple contacts the surface of the strip steel. After the staff has checked and found it to be qualified, the high temperature resistant thermocouple is then removed from the dotted position. In the above step 3, the radiation pyrometer measuring instrument body (5) is installed at the dotted position, and during the installation, the rotating ring (13) is manually rotated to drive the screw (16) to rotate, so that the screw (16) is moved on the placement box (6), thereby driving the push plate (15) and the moving block (20) to move, and then the radiation pyrometer measuring instrument body (5) is placed in the placement box (6). At this time, the card block (14) provided on the radiation pyrometer measuring instrument body (5) is locked with the card slot (22). The rotating ring (13) is connected and then rotated in the reverse direction to make the push plate (15) and the moving block (20) move in the reverse direction. With the reverse movement of the push plate (15), the push plate (15) is fixedly connected to the clamping plate (18) and is located in the square hole opened on the baffle (17), so that the reverse rotation of the rotating ring (13) can be stopped. Then, the rotating block (107) is rotated to drive the screw rod (102) to rotate. Since the screw rod (102) and the moving seat (101) are matched and connected, the screw rod (102) is used to During the rotation process, the movable seat (101) is driven to move, and the movable seat (101) is connected to the placement box (6) via a swinging rod (2). When the movable seat (101) moves, the swinging rod (2) is driven to swing, thereby driving the placement box (6) to swing. At this time, the rotating shaft (4), the connecting rod (7) and the indicating rod (8) all swing along with the swing of the placement box (6). Since the indicating rod (8) corresponds to the angle measuring plate (11), when the indicating rod (8) swings, the tilt angle of the placement box (6) is adjusted. Since the radiation pyrometer measuring instrument body (5) is placed in the placement box (6), the tilt angle of the radiation pyrometer measuring instrument body (5) is adjusted. When the tilt angle of the radiation pyrometer measuring instrument body (5) is consistent with the tilt angle of the dot, the rotation of the rotating block (107) can be stopped, and then the measuring end of the radiation pyrometer measuring instrument body (5) is inserted into the dot position, and the annealing furnace is fixedly connected to the mounting block (103). In the above step 4, the furnace is then started to heat up, and the annealing furnace enters the insulation mode when the temperature is 500-700°C. The strip steel stops running and prepares for the formal comparison test. At this time, the running strip steel is in an insulation static state, and the temperature of the central control HMI monitoring screen detected by the radiation pyrometer measuring instrument body (5) is recorded to create the test conditions; In the above step 5, the temperature of the steel strip measured by the radiation pyrometer measuring instrument body (5) is recorded, and then the radiation pyrometer measuring instrument body (5) is removed, and the steps of step 2 are repeated to insert a thermocouple into the peephole flange of the furnace shell to measure the temperature of the steel strip, and after a period of time, the temperature of the digital display connected to the thermocouple is read and recorded; In the above step 6, the radiation emissivity coefficient of the radiation pyrometer measuring instrument body (5) is then corrected, and the radiation pyrometer measuring instrument body (5) is calibrated, and then the normal production operator can monitor the HMI screen to control the process operation.

Citation Information

Patent Citations

  • Radiation pyrometer measuring device

    CN217818209U