CN209890662U - Sublance for detecting steel-smelting converter - Google Patents
Sublance for detecting steel-smelting converter Download PDFInfo
- Publication number
- CN209890662U CN209890662U CN201920388450.0U CN201920388450U CN209890662U CN 209890662 U CN209890662 U CN 209890662U CN 201920388450 U CN201920388450 U CN 201920388450U CN 209890662 U CN209890662 U CN 209890662U
- Authority
- CN
- China
- Prior art keywords
- air current
- outer tube
- sublance
- threading
- pipe
- 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.)
- Expired - Fee Related
Links
- 238000003723 Smelting Methods 0.000 title description 2
- 238000001514 detection method Methods 0.000 claims abstract description 11
- 238000009628 steelmaking Methods 0.000 claims abstract description 11
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 2
- 239000004964 aerogel Substances 0.000 claims description 2
- 238000004140 cleaning Methods 0.000 claims description 2
- 238000005452 bending Methods 0.000 abstract description 6
- 238000010438 heat treatment Methods 0.000 abstract description 6
- 230000005855 radiation Effects 0.000 abstract description 2
- 238000001816 cooling Methods 0.000 description 11
- 229910000831 Steel Inorganic materials 0.000 description 7
- 239000010959 steel Substances 0.000 description 7
- 239000000523 sample Substances 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000009413 insulation Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000010425 asbestos Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 229910001873 dinitrogen Inorganic materials 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910052895 riebeckite Inorganic materials 0.000 description 2
- 239000002131 composite material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
Images
Landscapes
- Carbon Steel Or Casting Steel Manufacturing (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The utility model relates to a sublance for steelmaking converter detection, which comprises a lance rod, a lance rod rotating device and a mounting base. The rifle bar comprises threading pipe, air current thermal-insulated pipe and outer tube, and one of them layer cover of air current thermal-insulated pipe is in threading pipe outer wall, and the second floor inlays in the outer tube inner wall, forms one deck air current insulating layer, and the intraductal compressed gas of threading passes through the air current insulating layer simultaneously and discharges from outer tube air current exhaust hole, takes away the heat that comes from the outer tube radiation, can ensure that the intraductal compensation wire of threading does not exceed standard in temperature when detecting. The gun rod rotating device can rotate the gun rod arranged in the base in due time, and the gun rod bending phenomenon caused by the temperature difference of the heating surface of the gun rod when the gun rod is detected is effectively avoided. The mounting base is mounted on the lifting trolley, the upper portion of the base is provided with a gun rod rotating device, and a gun rod is mounted inside the base.
Description
Technical Field
The utility model relates to a sublance water-free lance rod device for automatically detecting molten steel real-time parameters of steelmaking converter equipment in a steel plant during steelmaking.
Background
The present steelmaking converter molten steel detection sublance system basically comprises: the auxiliary gun and the lifting trolley, the detection probe box and the probe supply loading and unloading device, and the gun rod and the lifting trolley translation device during loading and unloading the probe. A lance rod in the conventional sublance system is provided with a water-cooling circulating cooling system, and the function of the sublance system is to ensure that the temperature of a compensation lead does not exceed the compensation range during detection. The gun rod water-cooling circulating water cooling system has the defects that the gun rod structure is complex, the operation cost is high, the gun rod is bent due to the temperature difference of the heating surface of the gun rod during detection, the time consumption for replacement and maintenance is long, and the potential safety hazard of major accidents caused by water leakage exists. To the above-mentioned problem, chinese utility model patent 200420150321.1 "change stove sublance" proposes to increase the problem that the rifle bar heating surface difference in temperature caused the rifle bar bending is solved to the rotary method for the rifle bar rotary mechanism, but still adopts the water cooling mode, has the potential safety hazard that leaks and cause major accident. The Chinese invention patent 201410748420.8 'a converter sublance body' proposes a technical scheme of using an asbestos heat-insulating layer and an external coating composite material spray coating to replace water cooling circulation cooling, and the Chinese invention patent application 201711423026.7 'a converter sublance body based on a vacuum structure' proposes a technical scheme of using a vacuum heat-insulating layer to replace a water cooling circulation system, but the two technical schemes can not solve the problem of the service life of a lance rod bending caused by the temperature difference of a heating surface of the lance rod.
Disclosure of Invention
The utility model relates to a sublance for steelmaking converter detects, aim at solve water-cooling sublance running cost height, the stock is flexible, change the maintenance time-consuming length, the potential safety hazard of leaking.
The utility model provides a scheme of above-mentioned problem as follows: the utility model provides a sublance for steelmaking converter detects, includes the stock, stock rotary device, mounting base, the stock comprises threading pipe, air current heat insulating pipe and outer tube, and one deck cover is in threading pipe outer wall among them to the air current heat insulating pipe, and the second floor affixes in the outer tube inner wall, forms the air current insulating layer, and there is the inlet port to air current heat insulating pipe bottom and communicates with each other with the through wires hole, and there is the air current exhaust hole at the top to communicate with each other with the sublance outside, and the intraductal compressed gas of threading gets into the air current insulating layer through the inlet port, discharges from the air current exhaust hole, takes away the heat that comes in from the outer tube radiation, can ensure that the. The gun rod rotating device can rotate the gun rod arranged in the base in due time, the rotating angle can reach 180 degrees, and the gun rod bending phenomenon caused by the temperature difference of the heating surface of the gun rod when the sublance is detected is effectively avoided. The gun rod mounting base is mounted on the lifting trolley, the gun rod rotating device is mounted on the upper portion of the base, and the gun rod is mounted inside the base.
Compared with the prior art, the utility model discloses an air current mode of insulating heat has utilized the intraductal pressurization nitrogen gas cooling part of threading that current detection sublance device used, and thermal-insulated and the thermal-insulated mode simple structure of vacuum of asbestos, low in cost, the nitrogen gas or the air that emit into furnace moreover are just the steelmaking needs. And the structure of the rotating device is simpler and more reliable than that of 200420150321.1 'converter sublance' because of no water cooling system, and the lance rod is not bent after being used for more than 3000 times, thereby greatly prolonging the service life of the lance rod.
Drawings
FIG. 1 is a schematic structural view of a sublance for steelmaking converter detection provided by the utility model
The reference numbers have the following part names:
1. a gun bar rotating device; 2. mounting a base; 3. a threading tube; 4. an outer tube; 5. an air flow vent; 6. an airflow heat insulation pipe; 7. an airflow inlet hole; 8. a compensation wire; 9. and (6) detecting the probe.
Detailed Description
The principles and features of the present invention will be described with reference to the accompanying fig. 1 and the specific embodiments, which are given by way of illustration only and are not intended to limit the scope of the invention.
Example 1
As shown in the attached drawing 1, the utility model provides a sublance for steelmaking converter detection, which comprises a lance rod, a lance rod rotating device 1 and a mounting base 2. The rifle bar comprises threading pipe 3, air current heat insulating pipe 6 and outer tube 4, and air current heat insulating pipe 6 wherein one deck overlaps at the threading pipe outer wall, and the second floor inlays in the 4 inner walls of outer tube, forms the air current insulating layer, and compressed gas passes through threading pipe 3 simultaneously and discharges from air current exhaust hole 5 of air current insulating layer from outer tube 4 department from inlet port 7 through the air current insulating layer, takes away the heat of radiating income from outer tube 4. The gun rod rotating device 1 can rotate the gun rod arranged in the mounting base 2 in due time, and effectively solves the gun rod bending phenomenon caused by the temperature difference of the heating surface of the gun rod during detection. The outer pipe 4 and the threading pipe 3 are made of heat-resistant alloy steel pipes. The compensating lead 8 is connected with the detecting probe 9 through the threading pipe 3, and the detecting probe 9 is sent into the hearth by the waterless gun rod to detect the molten steel.
The airflow heat insulation pipe 6 is only arranged at the lower end of the waterless gun rod, and because the upper end is far away from molten steel, the use requirement can be met only by insulating the lower half section, so that the weight can be reduced, and the use cost can be reduced. The airflow heat insulation pipe 6 uses nano aerogel felt, and the heat conductivity coefficient is only 0.018W/m.k. The outer wall of the lower section of the outer pipe 4 is coated with ZS-522 high-temperature-resistant self-cleaning non-sticking coating produced by Beijing Zhi Shengweihua chemical Co., Ltd, so that the slag sticking amount of the lower section of the outer pipe 4 in detection can be effectively reduced.
The sublance in the embodiment detects 4 hypomere bottoms of outer tube at certain steel mill converter test process in China, stops 8 ~ 10 seconds apart from molten steel 0.5 meter, and after the sublance was mentioned, 4 hypomere bottom temperature rises of outer tube are less than 600 degrees, and the temperature rise is less than 30 degrees in the threading pipe 3 minute, explains the utility model provides a sublance can satisfy converter sublance operation requirement, during the use, rotatory 180 degrees use at every turn, very big extension the anti bending capability of barral of a gun, life surpasss more than 3000 times.
The above description is only an embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (2)
1. The utility model provides a sublance for steelmaking converter detects, includes barral of a gun, barral of a gun rotary device (1), mounting base (2), its characterized in that: the rifle bar is by threading pipe (3), air current thermal-insulated pipe (6) and outer tube (4) are constituteed, one deck cover is in threading pipe (3) outer wall in air current thermal-insulated pipe (6), the second floor is attached to outer tube (4) inner wall, form the air current insulating layer, air current thermal-insulated pipe (6) bottom has air current inlet port (7) and communicates with each other with threading pipe (3), there is air current exhaust hole (5) at the top and communicates with each other with sublance outside, compressed gas passes through air current inlet port (7) and gets into the air current insulating layer in threading pipe (3), discharge from air current exhaust hole (5), rifle bar in installing base (2) can be rotated in good time in rifle bar rotary device (1), rotation angle can reach 180 degrees.
2. The sublance for steelmaking converter detection as claimed in claim 1, wherein the outer tube (4) and the threading tube (3) are made of heat-resistant alloy steel tube, the airflow heat-insulating tube (6) is made of nano aerogel felt, and the outer wall of the lower section of the outer tube (4) is coated with high-temperature-resistant self-cleaning coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920388450.0U CN209890662U (en) | 2019-03-26 | 2019-03-26 | Sublance for detecting steel-smelting converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920388450.0U CN209890662U (en) | 2019-03-26 | 2019-03-26 | Sublance for detecting steel-smelting converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209890662U true CN209890662U (en) | 2020-01-03 |
Family
ID=69018010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920388450.0U Expired - Fee Related CN209890662U (en) | 2019-03-26 | 2019-03-26 | Sublance for detecting steel-smelting converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209890662U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109777910A (en) * | 2019-03-26 | 2019-05-21 | 王军 | Sublance for steelmaking converter detection |
-
2019
- 2019-03-26 CN CN201920388450.0U patent/CN209890662U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109777910A (en) * | 2019-03-26 | 2019-05-21 | 王军 | Sublance for steelmaking converter detection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200103 |