CN215050461U - Safety interlocking protection device for self-heating furnace oxygen lance - Google Patents
Safety interlocking protection device for self-heating furnace oxygen lance Download PDFInfo
- Publication number
- CN215050461U CN215050461U CN202120509011.8U CN202120509011U CN215050461U CN 215050461 U CN215050461 U CN 215050461U CN 202120509011 U CN202120509011 U CN 202120509011U CN 215050461 U CN215050461 U CN 215050461U
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- CN
- China
- Prior art keywords
- water
- oxygen lance
- oxygen rifle
- oxygen
- flowmeter
- 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.)
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- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 53
- 239000001301 oxygen Substances 0.000 title claims abstract description 53
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 52
- 238000010438 heat treatment Methods 0.000 title claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 86
- 238000001816 cooling Methods 0.000 claims abstract description 7
- 230000001737 promoting effect Effects 0.000 abstract 1
- 239000007788 liquid Substances 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000009628 steelmaking Methods 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
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- Vertical, Hearth, Or Arc Furnaces (AREA)
Abstract
The utility model provides a from hot stove oxygen rifle safety interlock protection device, a serial communication port, including the oxygen rifle body, install on the oxygen rifle body and be used for promoting the gun device of oxygen rifle body height, still the cover is equipped with the water jacket that is used for the cooling of the oxygen rifle body on the oxygen rifle body, and near the oxygen rifle body is equipped with the water tank, be connected with inlet tube and wet return on the water jacket, inlet tube and wet return are connected with the water tank, be equipped with first thermal resistance and first flowmeter on the inlet tube, be equipped with second thermal resistance and second flowmeter on the wet return. The utility model is provided with temperature and flow sensors on the water inlet pipe and the water return pipe of the water jacket, detects the temperature and the flow of the water inlet pipe and the water return pipe, and controls the lifting gun device to lift the height of the oxygen lance when the temperature or the flow is not in the set range, thereby effectively preventing the safety accident; simple structure, convenient use and low cost.
Description
Technical Field
The utility model belongs to the technical field of metallurgical melting, a from hot stove oxygen rifle safety interlock protection device is related to.
Background
The oxygen lance is a tubular device, also called a lance, which blows high-pressure high-purity oxygen above a metal melting pool in a converter at supersonic speed and is provided with a high-pressure water cooling protection system. It is an important device for oxygen top-blown steel making. Wherein from hot stove oxygen rifle adoption closed water cooling system, oxygen rifle nozzle during converting is 200 ~ 500mm apart from the liquid level, and the gun position of its oxygen rifle directly influences smelting effect, converting time and metallurgical furnace kiln safety, and when the oxygen rifle position was crossed lowly, the oxygen rifle head probably contacted the fuse-element, caused the damage of closed water cooling system and took place to leak, leads to water entering copper liquid, and the explosion causes great potential safety hazard.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a from hot stove oxygen rifle safety interlock protection device to the problem that prior art exists.
Therefore, the utility model adopts the following technical scheme:
a safety interlocking protection device for an oxygen lance of an automatic heating furnace comprises an oxygen lance body, wherein a lance lifting device used for lifting the height of the oxygen lance body is installed on the oxygen lance body, a water jacket used for cooling the oxygen lance body is further sleeved on the oxygen lance body, a water tank is arranged near the oxygen lance body, a water inlet pipe and a water return pipe are connected onto the water jacket, the water inlet pipe and the water return pipe are connected with the water tank, a first thermal resistor and a first flowmeter are arranged on the water inlet pipe, and a second thermal resistor and a second flowmeter are arranged on the water return pipe.
Furthermore, the lifting gun device is connected with a controller, and the controller is respectively connected with the first thermal resistor, the first flowmeter, the second thermal resistor and the second flowmeter.
Further, the controller is a PLC controller.
The beneficial effects of the utility model reside in that: temperature and flow sensors are arranged on the water inlet pipe and the water return pipe of the water jacket, the temperature and the flow of the water inlet pipe and the water return pipe are detected, and when the temperature or the flow is not in a set range, the controller controls the lance lifting device to lift the height of the oxygen lance, so that safety accidents are effectively prevented; simple structure, convenient use and low cost.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a control schematic diagram of the present invention;
in the figure, 1-oxygen lance body, 2-lance lifting device, 3-water jacket, 4-water tank, 5-water inlet pipe, 6-water return pipe, 7-first thermal resistor, 8-first flowmeter, 9-second thermal resistor, 10-second flowmeter, and 11-controller.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings:
as shown in fig. 1 and 2, a safety interlocking protection device for an oxygen lance of an autothermal furnace comprises an oxygen lance body, wherein a lance lifting device 2 for lifting the height of the oxygen lance body 1 is installed on the oxygen lance body 1, the lance lifting device 2 is a device commonly used in the field and is used for lifting the height of the oxygen lance body 1 to keep the oxygen lance body away from the metal liquid level, a water jacket 3 for cooling the oxygen lance body 1 is further sleeved on the oxygen lance body 1, a water tank 4 is arranged near the oxygen lance body 1, the water tank 4 is used for supplying water into the water jacket 3, the water jacket 3 is connected with a water inlet pipe 5 and a water return pipe 6, the water inlet pipe 5 and the water return pipe 6 are connected with the water tank 4, the water in the water tank 4 can enter the water jacket 3 through the water inlet pipe 5 and flow back into the water tank 4 through the water return pipe 6 to realize closed circulation of the water, the water inlet pipe 5 is provided with a first thermal resistor 7 for measuring the water temperature in the water inlet pipe 5 and a first flowmeter 8 for measuring the flow in the water inlet pipe 5, similarly, the water return pipe 6 is provided with a second thermal resistor 9 for measuring the temperature of water in the water return pipe 6 and a second flowmeter 10 for measuring the flow in the water return pipe 6, the lifting gun device 3 is connected with a controller 11, the controller 11 is a PLC controller, the controller 11 can control the lifting gun device 3 to perform position lifting or lowering operation, the controller 11 is respectively connected with the first thermal resistor 7, the first flowmeter 8, the second thermal resistor 9 and the second flowmeter 10, and can receive signals transmitted by the sensors and control the lifting gun device 3 to operate according to corresponding signals.
The working process of the utility model is as follows:
when oxygen top-blown steel making is carried out, water is supplied into the water jacket 3 from the water tank 4 through the water inlet pipe 5, the oxygen lance body 1 is cooled, meanwhile, water in the water jacket 3 returns into the water tank 4 through the water return pipe 6, in the process, if the water temperature in the water return pipe 6 is monitored by the second thermal resistor 9 to be higher than a set value, the situation that the position of the oxygen lance body 1 is too close to the liquid level is indicated, the temperature is too high, the possibility that the oxygen lance body 1 and the water jacket 3 are damaged is caused, at the moment, the second thermal resistor 9 sends a signal to the controller 11, and the controller 11 controls the lance lifting device 2 to lift the position of the oxygen lance body 1 to prevent the temperature from being too high; in addition, if the two flow meters 10 monitor that the water flow in the water return pipe 6 is smaller than that in the water inlet pipe 5 monitored by the first flow meter 8 and the flow difference is larger, the water jacket 3 is damaged and water leakage occurs, and at the moment, the controller 11 controls the lifting gun device 2 to lift the position of the oxygen lance body 1, so that the water in the water jacket 3 is prevented from leaking into the copper liquid in a large amount to cause safety accidents.
Claims (3)
1. The safety interlocking protection device for the oxygen lance of the self-heating furnace is characterized by comprising an oxygen lance body (1), wherein a lance lifting device (2) used for lifting the height of the oxygen lance body (1) is installed on the oxygen lance body (1), a water jacket (3) used for cooling the oxygen lance body (1) is further sleeved on the oxygen lance body (1), a water tank (4) is arranged near the oxygen lance body (1), a water inlet pipe (5) and a water return pipe (6) are connected onto the water jacket (3), the water inlet pipe (5) and the water return pipe (6) are connected with the water tank (4), a first thermal resistor (7) and a first flowmeter (8) are arranged on the water inlet pipe (5), and a second thermal resistor (9) and a second flowmeter (10) are arranged on the water return pipe (6).
2. The self-heating furnace oxygen lance safety interlock protection device according to claim 1, characterized in that the lance lifting device (2) is connected with a controller (11), and the controller (11) is respectively connected with the first thermal resistor (7), the first flowmeter (8), the second thermal resistor (9) and the second flowmeter (10).
3. The self-heating furnace oxygen lance safety interlock protection device as claimed in claim 2, wherein the controller (11) is a PLC controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120509011.8U CN215050461U (en) | 2021-03-10 | 2021-03-10 | Safety interlocking protection device for self-heating furnace oxygen lance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120509011.8U CN215050461U (en) | 2021-03-10 | 2021-03-10 | Safety interlocking protection device for self-heating furnace oxygen lance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215050461U true CN215050461U (en) | 2021-12-07 |
Family
ID=79260657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120509011.8U Active CN215050461U (en) | 2021-03-10 | 2021-03-10 | Safety interlocking protection device for self-heating furnace oxygen lance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215050461U (en) |
-
2021
- 2021-03-10 CN CN202120509011.8U patent/CN215050461U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240226 Address after: 737199 No. 2 Jianshe Road, Jinchuan District, Jinchang City, Gansu Province (east of Beijing Road, west of Heya Road, south of Guiyang Road) Patentee after: Jinchuan Group Copper Gui Co.,Ltd. Country or region after: China Address before: No.98, Jinchuan Road, Jinchuan District, Jinchang City, Gansu Province 737100 Patentee before: JINCHUAN GROUP Co.,Ltd. Country or region before: China |