CN214361486U - Automatic measuring device for depth of blast furnace taphole - Google Patents
Automatic measuring device for depth of blast furnace taphole Download PDFInfo
- Publication number
- CN214361486U CN214361486U CN202023238635.5U CN202023238635U CN214361486U CN 214361486 U CN214361486 U CN 214361486U CN 202023238635 U CN202023238635 U CN 202023238635U CN 214361486 U CN214361486 U CN 214361486U
- Authority
- CN
- China
- Prior art keywords
- blast furnace
- depth
- iron notch
- measuring device
- hydraulic motor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Length Measuring Devices With Unspecified Measuring Means (AREA)
Abstract
The utility model provides an automatic measuring device of blast furnace iron notch degree of depth, includes tapping machine, PLC and proximity switch, displacement sensor and the display that is connected with PLC, the tapping machine is including walking the dolly and install hydraulic motor and the drilling equipment on the walking dolly, hydraulic motor's output sprocket passes through the chain and is connected with the driving sprocket of walking the dolly, drilling equipment's drilling rod is relative with the blast furnace iron notch pore canal in walking dolly the place ahead, proximity switch installs the lateral part at blast furnace iron notch pore canal mouth and corresponding with drilling equipment's drilling rod, displacement sensor installs on the walking dolly. The utility model discloses utilize displacement sensor automatic measure tapping machine's displacement volume, and then obtain the depth value of blast furnace iron notch and show on the display, not only improved the measurement accuracy and the measurement of efficiency of iron notch degree of depth greatly, measurement personnel need not to be close the iron notch moreover to eliminate the accident hidden danger, guaranteed measurement personnel's personal safety.
Description
Technical Field
The utility model relates to a device capable of automatically and accurately measuring the depth of a blast furnace taphole, belonging to the technical field of metallurgical equipment.
Background
The blast furnace taphole is the only channel for discharging molten iron from the furnace, and during the iron-making production process, the working condition of the blast furnace taphole is extremely severe, and the taphole is gradually shallow due to the fact that the blast furnace taphole bears the scouring of high-temperature molten iron (the temperature is as high as 1500 ℃) and the erosion of iron slag and chemical properties during iron discharging. In order to prevent the accident of large current running caused by the over-shallow iron notch (namely that a large amount of molten iron instantly gushes out of the iron notch), the depth of the iron notch (namely the distance from the iron notch hole mouth to the red point of the iron notch mud bag) needs to be monitored.
At present, a tapping machine is an important machine for opening a taphole during tapping of a blast furnace, the tapping machine mainly comprises a walking trolley, a hydraulic motor and a drilling device, the hydraulic motor is arranged on the walking trolley, and an output chain wheel of the hydraulic motor is connected with a driving chain wheel of the walking trolley through a chain, so that the walking trolley can be driven to advance or retreat. The drilling device is also arranged on the walking trolley. When the depth of the taphole is originally measured manually, a drill rod of the drilling device is utilized to drill the taphole hole channel of the blast furnace, and when the drill rod reaches the red point of the taphole mud packet, the drilling is stopped. A worker inserts a round bar which is provided with scales and is thinner than the iron notch hole channel into the iron notch hole channel until the round bar reaches the top point, and the length of the scale is the depth of the iron notch. The measuring method has the advantages of low measuring efficiency, large measuring error, influence on the correct judgment of the trend of the taphole and the control of tapping and slag discharging, potential safety hazard, serious burn accidents caused by improper station positions of measuring personnel or self-opening of the taphole, and incapability of ensuring the personal safety of workers.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an automatic measuring device of blast furnace iron notch degree of depth to the drawback of prior art to improve the measurement accuracy and the measurement of efficiency of iron notch degree of depth, and eliminate the accident hidden danger, guarantee survey crew's personal safety.
The problem of the utility model is solved with following technical scheme:
the utility model provides an automatic measuring device of blast furnace iron notch degree of depth, includes tapping machine, PLC and proximity switch, displacement sensor and the display that is connected with PLC, the tapping machine is including walking the dolly and install hydraulic motor and the drilling equipment on the walking dolly, hydraulic motor's output sprocket passes through the chain and is connected with the driving sprocket of walking the dolly, drilling equipment's drilling rod is relative with the blast furnace iron notch pore canal in walking dolly the place ahead, proximity switch installs the lateral part at blast furnace iron notch pore canal mouth and corresponding with drilling equipment's drilling rod, displacement sensor installs on the walking dolly.
According to the automatic measuring device for the depth of the blast furnace taphole, the displacement sensor is an encoder, and the encoder is installed on the output shaft of the hydraulic motor.
According to the automatic measuring device for the depth of the blast furnace taphole, the display is arranged on the hydraulic station in front of the furnace connected with the hydraulic motor.
In the automatic measuring device for the depth of the blast furnace taphole, the display is a liquid crystal display.
The automatic measuring device for the depth of the blast furnace taphole further comprises a dial, wherein the dial is installed on a driving chain wheel of the walking trolley and used for displaying the displacement of the walking trolley.
The utility model discloses utilize displacement sensor automatic measure tapping machine's displacement volume, and then obtain the depth value of blast furnace iron notch and show on the display, not only improved the measurement accuracy and the measurement of efficiency of iron notch degree of depth greatly, measurement personnel need not to be close the iron notch moreover to eliminate the accident hidden danger, guaranteed measurement personnel's personal safety.
Drawings
The present invention will be described in detail with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of the present invention.
The reference numbers in the figures are: 1. the device comprises a hydraulic station in front of a furnace, 2, a traveling trolley, 3, a hydraulic motor, 4, a driving chain wheel, 5, a displacement sensor, 6, a PLC, 7, a proximity switch, 8, a drill rod, 9, an iron notch opening, 10, a display, 11 and a dial.
Detailed Description
The utility model provides an automatic measure device of blast furnace iron notch degree of depth, the device can improve the measurement accuracy and the measurement of efficiency of iron notch degree of depth, ensures the safety of blast furnace production process.
The device is suitable for small and medium-sized ironmaking blast furnaces, can realize the automatic measurement of the depth of a taphole, and is further explained by combining the following drawings in the concrete implementation mode of the utility model:
as shown in fig. 1, the device comprises a tapping machine, a PLC, a proximity switch 7 connected with the PLC, a displacement sensor 5, a dial and a display 10, wherein the tapping machine comprises a walking trolley 2, a hydraulic motor 3 and a drilling device, the hydraulic motor is installed on the walking trolley 2, and the hydraulic motor is used for driving the walking trolley to move forwards or backwards. The drilling device is used for drilling a taphole hole of the blast furnace. The displacement sensor 5 and the dial can indirectly measure the displacement of the walking trolley 2, and then the blast furnace taphole depth is calculated according to the displacement. The proximity switch is installed at the side of the blast furnace taphole port for judging whether the drill rod reaches the taphole port, and the display 10 is used for displaying the measuring result of the taphole depth.
The displacement sensor 5 is an encoder and can be arranged on an output shaft of the hydraulic motor and also on a travelling wheel of the travelling trolley 2. The coder is a main measuring device for the displacement of the trolley, and the dial is an auxiliary measuring device for the displacement of the walking trolley.
The liquid crystal display 10 is installed on the hydraulic station 1 in front of the furnace, the proximity switch 7 is installed at the position of the taphole hole crossing 9, the dial 11 is installed on the driving chain wheel 4 of the walking trolley, the PLC is installed at the hydraulic station 1 in front of the furnace, when the measurement is started, the liquid crystal display 4 displays-400 mm (the initial distance between the front end of the drill rod and the taphole hole crossing 9), in the moving process of the walking trolley 2, the hydraulic motor 3 synchronously rotates, the encoder 5 continuously counts, the displacement and the taphole depth of the walking trolley are calculated through the PLC, and the displacement and the taphole depth are displayed through the liquid crystal display 10. Meanwhile, when the walking trolley 2 moves, the driving chain wheel 4 synchronously rotates, the reading of the 11 dial changes, and the tap hole depth can be judged accordingly.
The specific operation steps are as follows:
the first measuring method comprises the following steps:
the iron notch depth d is the distance from the iron notch hole mouth to the red point of the iron notch mud packet, namely the depth of the drill rod finally entering the iron notch, namely the distance x of the forward movement of the walking trolley is equal to the distance x of the forward movement of the walking trolley minus the initial distance 400mm between the front end of the drill rod of the tapping machine and the iron notch hole mouth 9:
d＝x-400mm
therefore, the device can measure the displacement amount of the walking trolley from the start of the walking trolley, and then calculate the depth d of the taphole according to the formula.
And a second measuring method comprises the following steps:
when the front end of a drill rod of the tapping machine reaches the taphole opening 9, the proximity switch 7 is triggered and sends a signal to the PLC, the PLC starts to measure after receiving the signal, and the displacement of the walking trolley is calculated according to the output signal of the encoder.
Obviously, the second measurement method directly measures the depth of the taphole without conversion, so that the measurement error is smaller.
The hydraulic tapping machine of Guilin same-side KD series is used in the embodiment, the iron notch depth of a 580-cubic-meter blast furnace is measured, the tapping machine track is 4.4 meters long, when tapping operation is started, the drilling angle of a drill rod is 11 degrees, a walking trolley moves gradually along with the drill rod, when the drill rod reaches an iron notch red point (through observation and judgment), the length of the drill rod, which is drilled into the iron notch, is the iron notch depth, the iron notch depth automatic measurement is completed at the moment, the iron notch drilling time is 6min, and the iron notch depth is 2000 mm.
The device can provide important production parameter basis for the safety production of the iron-making blast furnace, has the advantages of simple structure, reasonable design, convenient operation, low cost, convenient maintenance and the like, can realize the automatic calculation of the depth of the taphole, reduces the operation risk of workers and ensures the stability of the blast furnace production.
Although the embodiment of the present invention has been shown and described, it is understood that the above embodiment is illustrative and not to be construed as limiting the present invention, and those skilled in the art can change, modify, replace and modify the above embodiment without departing from the scope of the present invention, but all such changes and modifications fall into the protection scope of the present invention.
Claims (5)
1. The utility model provides an automatic measuring device of blast furnace taphole degree of depth, characterized by, including tapping machine, PLC and proximity switch (7), displacement sensor (5) and display (10) that are connected with PLC, the tapping machine is including walking dolly (2) and install hydraulic motor (3) and drilling equipment on walking dolly (2), the output sprocket of hydraulic motor (3) passes through the chain and is connected with drive sprocket (4) of walking dolly (2), drilling equipment's drilling rod (8) are relative with blast furnace taphole pore in walking dolly (2) the place ahead, proximity switch (7) are installed at the lateral part of blast furnace taphole pore mouth (9) and are corresponding with drilling equipment's drilling rod (8), displacement sensor (5) are installed on walking dolly (2).
2. The automatic measuring device of the blast furnace taphole depth according to claim 1, characterized by that the displacement sensor (5) is an encoder mounted on the output shaft of the hydraulic motor (3).
3. The automatic measuring device of the blast furnace taphole depth according to claim 1 or 2, characterized by the display (10) mounted on the hydraulic station (1) in front of the furnace connected to the hydraulic motor (3).
4. The automatic measuring device of the blast furnace taphole depth according to claim 3, characterized by that, the display (10) is a liquid crystal display.
5. The automatic measuring device for the depth of the blast furnace taphole according to claim 4, characterized by further comprising a dial (11), wherein the dial (11) is mounted on the driving sprocket (4) of the traveling trolley (2) for displaying the displacement of the traveling trolley (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023238635.5U CN214361486U (en) | 2020-12-29 | 2020-12-29 | Automatic measuring device for depth of blast furnace taphole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023238635.5U CN214361486U (en) | 2020-12-29 | 2020-12-29 | Automatic measuring device for depth of blast furnace taphole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214361486U true CN214361486U (en) | 2021-10-08 |
Family
ID=77948432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023238635.5U Active CN214361486U (en) | 2020-12-29 | 2020-12-29 | Automatic measuring device for depth of blast furnace taphole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214361486U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115612763A (en) * | 2022-09-09 | 2023-01-17 | 重庆钢铁股份有限公司 | Operation method for maintaining depth of iron notch |
-
2020
- 2020-12-29 CN CN202023238635.5U patent/CN214361486U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115612763A (en) * | 2022-09-09 | 2023-01-17 | 重庆钢铁股份有限公司 | Operation method for maintaining depth of iron notch |
| CN115612763B (en) * | 2022-09-09 | 2023-11-28 | 重庆钢铁股份有限公司 | Operation method for maintaining depth of iron notch |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN214361486U (en) | Automatic measuring device for depth of blast furnace taphole | |
| CN103994752B (en) | Automatic measurement and guidance system and automatic measurement and guidance method related to pipe pushing construction | |
| CN210359155U (en) | Temperature monitoring device for molten steel pouring of graphite steel roller | |
| CN108034789B (en) | Filling and plugging equipment for steel tapping hole of trough type electric arc furnace | |
| CN207180659U (en) | Civil construction measurement apparatus | |
| CN103290165A (en) | Method for measuring distance between oxygen lance nozzle and molten steel liquid level | |
| CN202272911U (en) | Device for measuring corrosion thickness of converter lining | |
| CN103911476A (en) | Detection apparatus of blast furnace front mud ramming quantity and control method | |
| CN104878191B (en) | Control method for preventing slab from smashing and hitting walking furnace fixation beam | |
| CN101983784B (en) | Manganese ferroalloy finery vehicle type folding smoke helmet | |
| CN105364030B (en) | Steel ladle clearance measurement apparatus | |
| CN213142142U (en) | Intelligent workstation system before stove | |
| CN212206275U (en) | Automatic positioning system of slag conveyor | |
| CN205096498U (en) | Ladle headroom measuring device | |
| CN106077530A (en) | A kind of steel-making continuous casting bag tempilstick device | |
| CN218146775U (en) | Positioning structure for improving slag blocking rate of converter | |
| CN220034564U (en) | Sounding device for blast furnace iron notch | |
| CN108362256B (en) | Auxiliary observation device and method for bottom morphology of electroslag remelting metal molten pool | |
| CN208275940U (en) | Hot-rolling mill transmission side movable block Zero positioning device | |
| CN205263009U (en) | Quick detection device of stokehold steel grade liquid solidus temperature | |
| CN204934535U (en) | For the quick testing agency of tundish bits | |
| CN219244750U (en) | High-temperature-resistant metallurgical molten pool liquid level detection device | |
| CN214327773U (en) | Tap hole opening machine capable of detecting tap hole depth | |
| CN213763993U (en) | Measuring tool for expanding steel ladle sliding nozzle | |
| JP3520535B2 (en) | Blast furnace tap hole depth measurement method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |