Blast furnace top thermal imaging monitoring device

Abstract

The utility model relates to the field of special environment monitoring equipment, in particular to a blast furnace top thermal imaging monitoring device which comprises a stopping base and a protective cylinder which are distributed up and down, through channels are formed in the middle of the stopping base and the middle of the protective cylinder respectively, a moving assembly is installed on one side of the stopping base, and the driving end of the moving assembly is connected with a gun body; a thermal imager is installed at the end, facing the channel, of the gun body, a box body is arranged on the periphery of the stopping base, a partition plate is arranged in the containing chamber, and a driving assembly and a cleaning piece are installed on one side of the partition plate. Through cooperative arrangement of the driving assembly and the cleaning piece, when the mirror surface of the thermal imager is fuzzy, the moving assembly drives the thermal imager to move upwards into the containing chamber and is located above the cleaning piece, the driving assembly drives the cleaning piece to rotate in a reciprocating mode in the plane of the cleaning piece, the blowing end outputs upward high-pressure airflow to the mirror surface, dust on the mirror surface is swept away, and the cleaning efficiency is improved. Therefore, the thermal imager can capture clear pictures in the furnace.

Description

Technical Field

[0001] The present application relates to the technical field of special environment monitoring equipment, and in particular to a blast furnace top thermal imaging monitoring device. Background Art

[0002] During the production process of the blast furnace, the operator makes a simple judgment through the throat temperature, cross temperature measurement, furnace top probe device and conventional temperature, pressure, flow and other external detection means. Due to the unstable distribution of airflow in the furnace and the different technical capabilities and experience of operators, it is inevitable that there will be deviations in judgment and adjustment. The application of the furnace top thermal imaging system provides blast furnace operators with a clearer and more intuitive basis and means of control.

[0003] In the related art, when overheating, water outage, gas outage, or power outage occurs during the operation of a blast furnace, the thermal imaging probe inserted into the furnace is easily burned out. In this regard, the related art proposes to install a mobile component in the furnace body. When water outage, power outage, etc. occur, the mobile component drives the thermal imaging probe to be moved out of the furnace body in time, and cooperates with structures such as ball valves to close its moving path after the thermal imaging probe is moved out to block the high-temperature airflow.

[0004] The problem with the related technology is that when the blast furnace is working, a large amount of dust floats in its internal space. In a high temperature environment, some of the dust easily adheres to the mirror surface of the thermal imaging probe, making it difficult for the thermal imaging probe to capture a clear picture. Utility Model Content

[0005] In order to reduce the impact of dust in the furnace body on the clarity of images captured by thermal imaging probes, the present application provides a blast furnace top thermal imaging monitoring device.

[0006] The present application provides a blast furnace top thermal imaging monitoring device that adopts the following technical solutions:

[0007] A thermal imaging monitoring device for a blast furnace roof comprises a stop seat and a casing distributed up and down, wherein the middle parts of the stop seat and the casing are respectively provided with through passages, a moving component is installed on one side of the stop seat, a driving end of the moving component is connected to a gun body, a thermal imager is installed on the end of the gun body facing the passage, a box body is provided around the outer periphery of the stop seat, a containing chamber for containing the moving component, the gun body and the thermal imager is formed inside the box body, a partition is provided in the containing chamber, a driving component and a cleaning piece are installed on one side of the partition, and the driving component is used to drive the cleaning piece to rotate so as to purge the mirror surface of the thermal imager.

[0008] By adopting the above technical solution, the moving component is connected to the thermal imager, and is used to move the thermal imager out of the furnace to protect the thermal imager when an emergency such as water outage or power outage occurs in the blast furnace; when the thermal imager moves from the furnace body to the box body, the driving component can drive the cleaning part to rotate, and when the cleaning part rotates, it outputs high-pressure gas to the mirror surface of the thermal imager to blow away the dust attached to the mirror surface, thereby ensuring the clarity of the captured image.

[0009] Optionally, the partition is arranged at one end of the box body close to the stop seat, and a through hole is opened on the partition, and the through hole is coaxially distributed with the channel, and the driving component and the cleaning component are respectively arranged on a side of the partition away from the moving component.

[0010] By adopting the above technical solution, the driving assembly and the cleaning member are arranged relative to the moving assembly, which can avoid obstruction to the movement of the gun body and the thermal imager. The through holes opened on the partition are used for the gun body and the thermal imager to pass through.

[0011] Optionally, the moving component includes an electric slide rail and a slide table, the electric slide rail is laid on the inner wall of the box body, and the extension direction of the electric slide rail is parallel to the axis of the channel, the slide table is arranged in coordination with the electric slide rail, a connecting piece is provided on the slide table, and the gun body is connected to the slide table through the connecting piece.

[0012] By adopting the above technical solution, the electric slide rail drives the slide table to move, the slide table drives the gun body to move through the connecting piece, and then drives the thermal imager to move.

[0013] Optionally, a sealing valve is provided between the interception seat and the casing to control the opening and closing of the channel, and the sealing valve is an electric ball valve.

[0014] By adopting the above technical solution, when the thermal imager is moved out of the furnace body along with the moving assembly, the conductive electric ball valve moves upward, and after the thermal imager completely passes through, the electric ball valve closes to prevent the high-temperature airflow in the furnace body from overflowing.

[0015] Optionally, a water cooling sleeve is provided between the interception seat and the casing, one end of the water cooling sleeve extends into the interior of the casing, the inner cavity of the water cooling sleeve is connected to the channel, and the sealing valve is provided between the water cooling sleeve and the interception seat.

[0016] By adopting the above technical solution and introducing cooling water into the water-cooling sleeve, the temperature of the working environment around the thermal imager can be reduced to ensure the normal operation of the thermal imager.

[0017] Optionally, the stop seat, sealing valve, water cooling sleeve and casing are connected respectively by flanges, and asbestos pads are provided at the connection between the stop seat and the sealing valve, the connection between the sealing valve and the water cooling sleeve, and the connection between the water cooling sleeve and the casing.

[0018] By adopting the above technical solution, the components are connected respectively through flanges, and the provision of asbestos pads can ensure the sealing of the connections between the components.

[0019] Optionally, the driving assembly includes a motor, a half gear, a gear ring and a rotating shaft, the motor is installed under the partition, the half gear is connected to the output end of the motor, the gear ring is meshed with one side of the half gear, the rotating shaft is passed through the gear ring, and one end of the cleaning piece is connected to the rotating shaft.

[0020] By adopting the above technical solution, the motor drives the gear ring to rotate through the half gear, and then drives the cleaning member to rotate through the rotating shaft. When the cleaning member rotates, one end contacts the thermal imager and blows the thermal imager mirror.

[0021] Optionally, a coil spring is sleeved on the surface of the rotating shaft, one end of the coil spring is fixedly connected to the partition, and the other end of the coil spring is fixedly connected to the rotating shaft.

[0022] By adopting the above technical solution, when the half gear drives the gear ring to rotate a certain angle, the coil spring is compressed, and then the half gear continues to rotate, so that the smooth part of the half gear corresponds to the gear ring. At this time, the driving force of the half gear on the gear ring disappears, and the coil spring restores its deformation to drive the rotating shaft and the cleaning part to reset. The half gear is driven by the motor to rotate continuously, so that the rotating shaft drives the cleaning part to rotate reciprocatingly.

[0023] Optionally, the cleaning piece has a connecting end and a purge end, the connecting end is rotatably mounted on the partition and connected to the rotating shaft, the purge end extends toward the middle of the partition, and the straight-line distance from the center axis of the gun body to the center axis of the rotating shaft is equal to the straight-line distance from the center of the purge end to the center axis of the rotating shaft.

[0024] By adopting the above technical solution, when the rotating shaft drives the connecting end to rotate, the purge end rotates accordingly on the plane in which it is located, and the rotation path of the purge end intersects with the moving path of the thermal imager, so that when the thermal imager moves to the top of the purge end, the purge end outputs an upward high-pressure airflow to clean the thermal imager mirror.

[0025] Optionally, a dust block is provided on one side wall of the box body, and the dust block is arranged above the plane where the purge end is located.

[0026] By adopting the above technical solution, when the driving assembly stops working, the purge end of the cleaning member is located below the dust block, and the dust block can intercept most of the floating dust to prevent it from falling onto the surface of the purge end.

[0027] In summary, the present application includes at least one of the following beneficial technical effects:

[0028] 1. Through the coordinated arrangement of the driving assembly and the cleaning piece, when the thermal imager mirror surface is blurred, the moving assembly drives the thermal imager to move upward into the accommodating chamber and is located above the cleaning piece. The driving assembly drives the cleaning piece to reciprocate in its plane. The cleaning piece outputs high-pressure gas to the mirror surface to purge the dust attached to the mirror surface, thereby ensuring that the thermal imager can capture a clear picture of the furnace. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a front view cross-sectional structural schematic diagram of the working state of the embodiment of the present application.

[0030] Figure 2 It is a front view cross-sectional structural diagram of the monitor in the removed state according to the embodiment of the present application.

[0031] Figure 3 It is a schematic diagram of the partial structure inside the box body of the embodiment of the present application.

[0032] Figure 4 yes Figure 2 A schematic diagram of the enlarged structure at point A in the middle.

[0033] Figure 5 It is a partial structural diagram of the driving component of this application.

[0034] Figure 6 yes Figure 1 A magnified schematic diagram of the structure at point B in the middle.

[0035] Figure numerals: 1. stop seat; 2. casing; 3. channel; 4. moving assembly; 41. electric slide rail; 42. slide table; 5. gun body; 6. thermal imager; 7. box body; 8. partition; 9. drive assembly; 91. motor; 92. half gear; 93. gear ring; 94. rotating shaft; 10. cleaning part; 101. connecting end; 102. purge end; 11. perforation; 12. connecting part; 13. sealing valve; 14. water-cooling sleeve; 15. asbestos pad; 16. coil spring; 17. dust block. DETAILED DESCRIPTION

[0036] The following is combined with Figure 1-6 This application is described in further detail.

[0037] The present application embodiment discloses a blast furnace top thermal imaging monitoring device. Figure 1 A thermal imaging monitoring device for a blast furnace top includes a casing 2 installed on the blast furnace top and extending into the furnace, a through passage 3 is opened in the middle of the casing 2, a thermal imager 6 is arranged at the end of the passage 3 facing the furnace, and the thermal imager 6 is used to capture the scene inside the furnace.

[0038] A moving assembly 4 is arranged above the casing 2. The moving assembly 4 includes an electric slide rail 41 and a slide table 42. The electric slide rail 41 extends vertically, and its length direction is parallel to the central axis of the casing 2. The slide table 42 can be raised and lowered under the drive of the electric slide rail 41. A connecting member 12 is arranged on the surface of the slide table 42. Preferably, the connecting member 12 is an L-shaped plate structure. A gun body 5 is installed at one end of the connecting member 12 away from the slide table 42. The gun body 5 extends vertically, and the central axis of the gun body 5 is on the same straight line as the central axis of the casing 2. The thermal imager 6 is connected to the lower end of the gun body 5. When the slide table 42 moves on the surface of the electric slide rail 41, the thermal imager 6 is driven to move synchronously. The moving distance of the slide table 42 is equal to the moving distance of the thermal imager 6.

[0039] Reference Figure 1 A stop seat 1 is provided above the casing 2 to limit the moving distance of the thermal imager 6. A channel 3 is also provided in the stop seat 1 for the gun body 5 and the thermal imager 6 to pass through. Specifically, a contact sleeve matching with the stop seat 1 is provided on the gun body 5. When the sliding sleeve drives the gun body 5 and the thermal imager 6 to move toward the casing 2, the contact sleeve contacts the stop seat 1 to limit the position of the gun body 5 and the thermal imager 6, and prevent the thermal imager 6 from moving further downward. At this time, the mirror of the thermal imager 6 is just located at the lower end of the channel 3. The above-mentioned moving component 4 is installed on one side of the stop seat 1.

[0040] Furthermore, a sealing valve 13 and a water-cooling sleeve 14 are provided between the casing 2 and the stop seat 1. The casing 2, the water-cooling sleeve 14, the sealing valve 13 and the stop seat 1 (hereinafter referred to as each component) are arranged in sequence from bottom to top, and each component is connected end to end. A flange is provided on the connection side of each component, and the flanges are connected and fixed. An asbestos pad 15 is provided between the two connected flanges. The asbestos pad 15 can improve the sealing effect of the connection between the components. A channel 3 for the gun body 5 and the thermal imager 6 to pass through is formed in the middle of each component.

[0041] The sealing valve 13 is preferably an electric ball valve, which can control the conduction and closure of the channel 3. Specifically, when the thermal imager 6 is in working state, the electric ball valve is conducted, and the gun body 5 extends into the channel 3; when the blast furnace equipment encounters an emergency such as water outage or power outage, the moving assembly 4 drives the gun body 5 and the thermal imager 6 to move upward and move out from the upper port of the channel 3. When the thermal imager 6 completely passes through the electric ball valve, the valve core in the electric ball valve rotates to close the channel 3. Those skilled in the art should know that the specific structure of the electric ball valve and the water-cooling sleeve 14 belongs to conventional technology and will not be described in detail here.

[0042] Reference Figure 2 and Figure 3A box body 7 is provided around the outer periphery of the stop seat 1, and the lower end of the box body 7 is fixedly connected to the stop seat 1. A accommodating chamber is formed between the box body 7 and the stop seat 1. The moving assembly 4 is arranged on one side of the accommodating chamber, and the gun body 5 and the thermal imager 6 are both arranged in the middle of the accommodating chamber. Further, a partition 8 is provided in the accommodating chamber, and the partition 8 is arranged horizontally. A driving assembly 9 and a cleaning member 10 are installed on one side of the partition 8. The driving assembly 9 is used to drive the cleaning member 10 to rotate. When the cleaning member 10 rotates to the bottom of the thermal imager 6, high-pressure gas can be output to purge the thermal imager mirror. Preferably, the driving assembly 9 and the cleaning member 10 are both arranged on the side of the box body 7 opposite to the moving assembly 4. A perforation 11 is opened on the partition 8, and the perforation 11 corresponds to the channel 3 for the gun body 5 and the thermal imager 6 to pass through.

[0043] Specifically, the cleaning component 10 has a connecting end 101 and a purge end 102, wherein the purge end 102 is arranged above the connecting end 101 and close to one side of the middle of the box body 7. The purge end 102 can specifically be an electrical component that can output a high-pressure airflow in an upward direction after being powered on, and the specific structure is not repeated here.

[0044] Reference Figure 4 The driving assembly 9 includes a motor 91, a half gear 92, a gear ring 93 and a rotating shaft 94, wherein the rotating shaft 94 is connected to the connecting end 101 of the cleaning member 10, the gear ring 93 is sleeved on the surface of the rotating shaft 94 and is keyed to the rotating shaft 94, the half gear 92 is arranged on one side of the gear ring 93, and the driving end of the motor 91 is connected to the half gear 92. It can be understood that the half gear 92 is as follows Figure 5 In the structure shown, the surface of the half gear 92 is partially smooth, and the other part is provided with gear teeth.

[0045] Furthermore, a coil spring 16 is sleeved on the surface of the rotating shaft 94, one end of the coil spring 16 is connected to the rotating shaft 94, and the other end is fixed to the partition 8, so that when the rotating shaft 94 is rotated by an external force, the coil spring 16 is compressed, and when the external force is removed, the coil spring 16 recovers its deformation.

[0046] With the above structure, the motor 91 drives the half gear 92 to rotate. When the smooth part of the half gear 92 rotates to a side close to the gear ring 93, there is no connection effect between the half gear 92 and the gear ring 93, that is, the gear ring 93 remains stationary; when the part of the half gear 92 provided with the gear teeth rotates to a side close to the gear ring 93, the gear teeth of the half gear 92 mesh with the gear ring 93, thereby driving the gear ring 93 to rotate a certain angle, and the gear ring 93 drives the rotating shaft 94 and the cleaning member 10 to rotate a certain angle, at which time the coil spring 16 is compressed; the motor 91 continues to drive the half gear 92 to rotate, and the smooth part of the half gear 92 rotates to a side close to the gear ring 93 again, and the driving force of the half gear 92 on the gear ring 93 disappears, and the coil spring 16 recovers the deformation, driving the rotating shaft 94 and the cleaning member 10 to return to their original positions. When the motor 91 continues to drive the half gear 92 to rotate, the rotating shaft 94 and the cleaning member 10 can reciprocate within a certain range.

[0047] Reference Figure 1 and Figure 6 Preferably, in the initial state, the orthographic projection of the cleaning member 10 on the partition 8 is located on one side of the through hole 11 opened on the partition 8 to avoid affecting the up and down movement of the gun body and the thermal imager 6 in the through hole 11. A dust block 17 is provided on the inner side wall of the box body 7 near the initial position of the cleaning member 10. The dust block 17 is provided above the plane where the purge end 102 is located, so that when the cleaning member 10 is in the initial position, the purge end 102 is located below the dust block 17, and the upper surface of the purge end 102 is completely covered by the dust block 17, which can prevent dust from accumulating on the purge end 102.

[0048] It should be noted that in order to facilitate replacement or maintenance of the thermal imager 6 and the cleaning piece 10, an opening is opened on one side of the box body 7 at a height corresponding to the cleaning piece 10, and a detachable inspection panel is installed at the opening to facilitate replacement or maintenance by the staff.

[0049] The implementation principle of the thermal imaging monitoring device for the top of a blast furnace in the embodiment of the present application is as follows: initially, the gun body 5 extends into the channel 3, so that the capture end of the thermal imager 6 is located at the lower end of the channel 3, and the image in the blast furnace is captured. When the mirror surface of the thermal imager 6 is covered by dust and affects the clarity of the image, the moving component 4 drives the gun body 5 and the thermal imager 6 to move upward to the accommodating room, and the thermal imager 6 is located above the plane where the purge end 102 is located. Then, the motor 91 is started, and the cleaning part 10 is driven by the motor 91 to rotate back and forth. During the rotation process, the purge end 102 is energized and outputs a high-pressure airflow upward, so that when it passes below the thermal imager 6, the mirror surface of the thermal imager 6 can be purged. After the purging is completed, the cleaning part 10 returns to its initial position, and the moving component 4 drives the gun body 5 and the thermal imager 6 to move downward to the working position.

[0050] When an emergency such as water outage or power outage occurs in the blast furnace, the moving assembly 4 drives the gun body 5 and the thermal imager 6 to rise. When the thermal imager 6 completely passes through the sealing valve 13, the sealing valve 13 closes the channel 3 to prevent the high-temperature airflow from overflowing. After the equipment maintenance is completed and returns to normal, the sealing valve 13 opens the channel 3, and the moving assembly 4 drives the gun body 5 and the thermal imager 6 down to the working position.

[0051] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A blast furnace top thermal imaging monitoring device, comprising a stop seat (1) and a casing (2) arranged in an upper and lower manner, wherein the middle parts of the stop seat (1) and the casing (2) are respectively provided with a through passage (3), a moving component (4) is installed on one side of the stop seat (1), a driving end of the moving component (4) is connected to a gun body (5), and a thermal imager (6) is installed on one end of the gun body (5) facing the passage (3), characterized in that: A box body (7) is provided on the outer periphery of the interception seat (1), and a receiving chamber for receiving the movable assembly (4), the gun body (5) and the thermal imager (6) is formed inside the box body (7). A partition (8) is provided in the receiving chamber, and a driving assembly (9) and a cleaning member (10) are installed on one side of the partition (8). The driving assembly (9) is used to drive the cleaning member (10) to rotate so as to purge the mirror surface of the thermal imager (6).

2. A blast furnace top thermal imaging monitoring device according to claim 1, characterized in that: The partition (8) is arranged at one end of the box body (7) close to the stop seat (1), and a through hole (11) is opened on the partition (8). The through hole (11) is coaxially distributed with the channel (3). The driving component (9) and the cleaning component (10) are respectively arranged on a side of the partition (8) away from the moving component (4).

3. A blast furnace top thermal imaging monitoring device according to claim 1, characterized in that: The moving assembly (4) comprises an electric slide rail (41) and a slide table (42); the electric slide rail (41) is laid on the inner wall of the box body (7), and the extension direction of the electric slide rail (41) is parallel to the axis of the channel (3); the slide table (42) is arranged in coordination with the electric slide rail (41); a connecting piece (12) is arranged on the slide table (42), and the gun body (5) is connected to the slide table (42) via the connecting piece (12).

4. A blast furnace top thermal imaging monitoring device according to claim 1, characterized in that: A sealing valve (13) is provided between the interception seat (1) and the casing (2) for controlling the opening and closing of the passage (3); the sealing valve (13) is an electric ball valve.

5. A blast furnace top thermal imaging monitoring device according to claim 4, characterized in that: A water cooling sleeve (14) is arranged between the stop seat (1) and the casing (2), one end of the water cooling sleeve (14) extends into the interior of the casing (2), the inner cavity of the water cooling sleeve (14) is connected to the channel (3), and the sealing valve (13) is arranged between the water cooling sleeve (14) and the stop seat (1).

6. A blast furnace top thermal imaging monitoring device according to claim 5, characterized in that: The stop seat (1), the sealing valve (13), the water cooling sleeve (14) and the casing (2) are connected via flanges, respectively; asbestos pads (15) are provided at the connection between the stop seat (1) and the sealing valve (13), the connection between the sealing valve (13) and the water cooling sleeve (14), and the connection between the water cooling sleeve (14) and the casing (2).

7. The blast furnace top thermal imaging monitoring device according to claim 1, characterized in that: The driving assembly (9) comprises a motor (91), a half gear (92), a gear ring (93) and a rotating shaft (94); the motor (91) is mounted below the partition (8); the half gear (92) is connected to an output end of the motor (91); the gear ring (93) meshes with one side of the half gear (92); the rotating shaft (94) is inserted into the gear ring (93); and one end of the cleaning member (10) is connected to the rotating shaft (94).

8. The blast furnace top thermal imaging monitoring device according to claim 7, characterized in that: A coil spring (16) is sleeved on the surface of the rotating shaft (94); one end of the coil spring (16) is fixedly connected to the partition plate (8), and the other end of the coil spring (16) is fixedly connected to the rotating shaft (94).

9. The blast furnace top thermal imaging monitoring device according to claim 7, characterized in that: The cleaning member (10) comprises a connecting end (101) and a purging end (102); the connecting end (101) is rotatably mounted on the partition (8) and connected to the rotating shaft (94); the purging end (102) extends toward the middle of the partition (8); and the straight-line distance from the center axis of the gun body (5) to the center axis of the rotating shaft (94) is equal to the straight-line distance from the center of the purging end (102) to the center axis of the rotating shaft (94).

10. A blast furnace top thermal imaging monitoring device according to claim 9, characterized in that: A dust block (17) is provided on one side wall of the box body (7), and the dust block (17) is arranged above the plane where the purge end (102) is located.

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