CN211588509U - Liquid level alarm device for blast furnace hot metal tank - Google Patents
Liquid level alarm device for blast furnace hot metal tank Download PDFInfo
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- CN211588509U CN211588509U CN201922268472.6U CN201922268472U CN211588509U CN 211588509 U CN211588509 U CN 211588509U CN 201922268472 U CN201922268472 U CN 201922268472U CN 211588509 U CN211588509 U CN 211588509U
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Abstract
The utility model relates to a liquid level alarm device for a blast furnace hot metal ladle, which comprises a fixed plate, a positioning electrode, a hot metal ladle, a stay cord, a ram, a limit switch, an insulating porcelain bottle, an extension part, a driving motor and an alarm. Driving motor passes through the stay cord to be connected with the fixed plate, and the fixed plate level sets up in the top of hot metal bottle, and the positioning electrode adopts safe DC24V voltage for two, is positive electrode and negative electrode respectively, and parallel and perpendicular cartridge are on the fixed plate mutually, triggers the alarm when positive, negative electrode switches on mutually, and driving motor passes through stay cord pulling fixed plate and positioning electrode simultaneously and moves along the vertical direction upward. The device greatly improves the accuracy of the molten iron liquid level during tapping, avoids errors possibly caused by manual observation, reduces the incidence rate of the overflow accidents of molten iron while ensuring the tapping quantity, ensures the personal safety of workers and increases the economic benefits of enterprises.
Description
Technical Field
The application belongs to the technical field of electrical equipment, and more specifically relates to a liquid level alarm device for a blast furnace hot metal ladle.
Background
The hot metal ladle is also called as a foundry ladle and is a device for containing molten iron when molten iron is produced in blast furnace iron making. When the blast furnace is tapped, molten iron flows out of the tapping hole and is injected into the molten iron tank, and when the molten iron in the molten iron tank reaches a certain liquid level, tapping needs to be stopped, so that production safety accidents caused by overflow of the molten iron are prevented. In the existing tapping process, a worker is generally required to manually observe the liquid level in the molten iron tank. Because the manual observation is inaccurate and easy to make mistakes, the molten iron in the general molten iron tank can hardly accurately reach the designated liquid level. When the liquid level in the molten iron tank is too low, the tapping amount of the blast furnace is influenced, and the tapping organization is influenced, so that the production benefit of an enterprise is influenced; when the liquid level in the molten iron tank is too high, the molten iron is easy to overflow, so that production safety accidents are formed, and the personal safety of staff is endangered and the property loss of enterprises is caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a blast furnace hot metal bottle liquid level alarm device is provided, the device mechanical structure is simple reliable, and alarming function is with strong points, can avoid artifical observation hot metal bottle liquid level inaccurate, cause the phenomenon of enterprise's loss of property when endangering staff personal safety easily when the blast furnace is castrated.
In order to solve the above problem, the utility model discloses the technical scheme who adopts is:
the utility model provides a blast furnace hot metal bottle liquid level alarm device, including driving motor, the fixed plate of being connected with driving motor through the stay cord, two insulating vase of setting on the fixed plate, parallel and perpendicular cartridge two positioning electrode in insulating vase of each other, the extension of setting in positioning electrode bottom, the setting hits the iron at the fixed plate lateral wall, set up on the wall and correspond complex limit switch with hitting the iron, an alarm for reporting to the police, limit switch is connected with driving motor's control circuit electricity, the fixed plate level sets up in the top of hot metal bottle, positioning electrode is positive electrode and negative electrode respectively, positioning electrode electricity connects alarm and driving motor's control circuit, extension and the molten iron liquid level cooperation in the molten iron jar.
The utility model discloses technical scheme's further improvement lies in: the limit switch comprises an upper limit switch and a lower limit switch which are arranged up and down, a disconnection contact of the upper limit switch and a disconnection contact of the lower limit switch are connected in parallel and then are connected with a control loop of the driving motor, and a conduction contact of the positioning electrode is connected with the disconnection contact of the upper limit switch in series.
The utility model discloses technical scheme's further improvement lies in: the electrode voltage of the positioning electrode is the DC24V safety voltage.
The utility model discloses technical scheme's further improvement lies in: the extension part is an iron rod and is connected with the positioning electrode in a screw mode.
The utility model discloses technical scheme's further improvement lies in: the pull rope is a steel wire rope.
The utility model discloses technical scheme's further improvement lies in: the alarm is a sound-light alarm.
Since the technical scheme is used, the utility model discloses the beneficial effect who gains is: the device can be accurate through setting up the warning liquid level that sets up the molten iron under the spacing position of positioning electrode, can ring in the twinkling of an eye when the molten iron reachs and sets for the liquid level and remind the staff to stop the tapping, the accuracy of molten iron liquid level when having improved the tapping greatly, the error that the manual work observation probably caused has been avoided, reduced the incidence of molten iron overflow accident when having guaranteed the tapping volume, guaranteed staff's personal safety, increased the economic benefits of enterprise.
Meanwhile, because the fixing plate is also provided with an insulating porcelain bottle, the positioning electrode is inserted in the insulating porcelain bottle, and the possibility of electric leakage of the positioning electrode is reduced. And the bottom of the positioning electrode is also provided with an extension part which is an iron rod and is screwed with the positioning electrode. The part of the positioning electrode frequently contacted with molten iron is easily ablated by the molten iron, the extension part can replace the positioning electrode to contact with the molten iron, and only the extension part is replaced after the positioning electrode is contacted and ablated for a long time, so that the whole electrode is prevented from being replaced, and the use is more convenient.
Drawings
Fig. 1 is a schematic structural view of the present invention;
wherein: 1. the device comprises a fixing plate, 2, a positioning electrode, 3, a hot metal ladle, 4, a pull rope, 5, a striker, 6, a limit switch, 7, an insulating porcelain insulator, 8, an extension part, 9 and a driving motor.
Detailed Description
The present invention will be described in further detail with reference to examples.
The utility model discloses a blast furnace hot metal bottle liquid level alarm device, including driving motor 9, fixed plate 1 connected with driving motor 9 through stay cord 4, set up two insulating vase 7 on fixed plate 1, parallel and perpendicular cartridge two positioning electrode 2 in insulating vase 7 mutually, the extension 8 of setting in positioning electrode 2 bottom, the setting hits indisputable 5 at 1 lateral wall of fixed plate, the setting corresponds complex limit switch 6 on the wall and with hitting indisputable 5, an alarm for the warning, limit switch 6 is connected with driving motor 9's control circuit electricity, 1 level of fixed plate sets up in hot metal bottle 3's top, positioning electrode 2 is positive electrode and negative electrode respectively, positioning electrode 2 electricity is connected alarm and driving motor 9's control circuit, it is the L type to hit indisputable 5, the molten iron liquid level cooperation in extension 8 and the hot metal bottle 3.
The limit switch 6 comprises an upper limit switch and a lower limit switch which are arranged up and down, a disconnection contact of the upper limit switch and a disconnection contact of the lower limit switch are connected in parallel and then are connected with a control loop of the driving motor 9, and a conduction contact of the positioning electrode 2 is connected with the disconnection contact of the upper limit switch in series.
The electrode voltage of the positioning electrode 2 is the DC24V safety voltage. The extension portion 8 is an iron rod and is screwed with the positioning electrode 2. The pull rope 4 is a steel wire rope. The alarm is an audible and visual alarm or an electric bell.
The utility model discloses can drive fixed plate 2 and the perpendicular downstream of positioning electrode 1 through on-off control driving motor 9, when the iron 5 that hits on fixed plate 1 hit down limit switch, driving motor 9 stops, and the position of 2 bottom surfaces of positioning electrode is the appointed liquid level of molten iron in the hot metal bottle 3 this moment. When tapping, when the molten iron liquid level in the molten iron tank 3 contacts the positioning electrode 2, the positioning electrode 2 is conducted, the driving motor 9 pulls the fixing plate 1 and the positioning electrode 2 to move upwards along the vertical direction through the pull rope 4, the audible and visual alarm or the electric bell rings to remind a worker to stop tapping, and when the iron collision 5 on the fixing plate 1 collides the upper limit switch, the driving motor 9 stops. The specific circuit is realized by a plurality of relays, the break-off contact (the normally closed contact of the relay corresponding to the principle) of the upper limit switch and the break-off contact (the normally closed contact of the relay corresponding to the principle) of the lower limit switch are connected in parallel with the control circuit of the driving motor 9, and the conducting contact (the normally open contact of the relay corresponding to the principle) of the positioning electrode 2 is connected in series with the break-off contact (the normally closed contact of the relay corresponding to the principle) of the upper limit switch. Of course, other modes are possible, and are not described in detail herein.
The device can be accurate through setting up the warning liquid level that sets up the molten iron under the spacing position of positioning electrode, can ring in the twinkling of an eye when the molten iron reachs and sets for the liquid level and remind the staff to stop the tapping, the accuracy of molten iron liquid level when having improved the tapping greatly, the error that the manual work observation probably caused has been avoided, reduced the incidence of molten iron overflow accident when having guaranteed the tapping volume, guaranteed staff's personal safety, increased the economic benefits of enterprise. Meanwhile, because the fixing plate 1 is also provided with the insulating porcelain insulator 7, the positioning electrode 2 is inserted into the insulating porcelain insulator 7, and the possibility of electric leakage of the positioning electrode 2 is reduced. And the bottom of the positioning electrode 2 is also provided with an extension part 8, and the extension part 8 is an iron rod and is screwed with the positioning electrode 2. The part of the positioning electrode 2 which is often contacted with molten iron is easily ablated by the molten iron, the extension part 8 can replace the positioning electrode 2 to be contacted with the molten iron, and only the extension part 8 is replaced after the long-time contact ablation, so that the replacement of the whole electrode is avoided, and the use is more convenient.
Claims (6)
1. The utility model provides a blast furnace hot metal bottle liquid level alarm device which characterized in that: comprises a driving motor (9), a fixing plate (1) connected with the driving motor (9) through a pull rope (4), two insulating porcelain bottles (7) arranged on the fixing plate (1), two positioning electrodes (2) which are parallel to each other and vertically inserted in the insulating porcelain bottles (7), an extension part (8) arranged at the bottom of the positioning electrodes (2), a collision iron (5) arranged on the side wall of the fixing plate (1), a limit switch (6) arranged on the wall and correspondingly matched with the collision iron (5), and an alarm for alarming, the limit switch (6) is electrically connected with a control loop of the driving motor (9), the fixing plate (1) is horizontally arranged above the hot metal ladle (3), the positioning electrodes (2) are respectively a positive electrode and a negative electrode, the positioning electrodes (2) are electrically connected with an alarm and the control loop of the driving motor (9), and the extension part (8) is matched with the molten iron liquid level in the hot metal ladle (3).
2. The liquid level alarm device of the blast furnace hot-metal bottle of claim 1, which is characterized in that: the limit switch (6) comprises an upper limit switch and a lower limit switch which are arranged up and down, a disconnection contact of the upper limit switch and a disconnection contact of the lower limit switch are connected in parallel and then are connected with a control loop of the driving motor (9), and a conduction contact of the positioning electrode (2) is connected with the disconnection contact of the upper limit switch in series.
3. The liquid level alarm device of the blast furnace hot-metal bottle of claim 2, wherein: the electrode voltage of the positioning electrode (2) is DC24V safe voltage.
4. The liquid level alarm device of the blast furnace hot-metal bottle of claim 3, wherein: the extension part (8) is an iron rod and is connected with the positioning electrode (2) in a screw-mounting way.
5. The liquid level alarm device of the blast furnace hot-metal bottle according to claim 4, characterized in that: the pull rope (4) is a steel wire rope.
6. The liquid level alarm device of the blast furnace hot-metal bottle of claim 5, wherein: the alarm is a sound-light alarm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922268472.6U CN211588509U (en) | 2019-12-17 | 2019-12-17 | Liquid level alarm device for blast furnace hot metal tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922268472.6U CN211588509U (en) | 2019-12-17 | 2019-12-17 | Liquid level alarm device for blast furnace hot metal tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211588509U true CN211588509U (en) | 2020-09-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922268472.6U Active CN211588509U (en) | 2019-12-17 | 2019-12-17 | Liquid level alarm device for blast furnace hot metal tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211588509U (en) |
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2019
- 2019-12-17 CN CN201922268472.6U patent/CN211588509U/en active Active
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| TR01 | Transfer of patent right |
Effective date of registration: 20210607 Address after: 032100 Sangcun Industrial Park, Wenshui Economic Development Zone, Luliang City, Shanxi Province Patentee after: Lvliang Jianlong Industrial Co.,Ltd. Address before: 054027 No. 262 South Steel Road, Shiqiao West, Hebei, Xingtai Patentee before: XINGTAI IRON & STEEL Co.,Ltd. |