CN215677210U - Hot metal bottle liquid level height radar automatic checkout device and system - Google Patents
Hot metal bottle liquid level height radar automatic checkout device and system Download PDFInfo
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- CN215677210U CN215677210U CN202122164063.9U CN202122164063U CN215677210U CN 215677210 U CN215677210 U CN 215677210U CN 202122164063 U CN202122164063 U CN 202122164063U CN 215677210 U CN215677210 U CN 215677210U
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Abstract
The utility model discloses a radar automatic detection device for the liquid level height of a molten iron tank, which comprises a radar cover consisting of an outer layer wall and an inner layer wall, wherein a cavity interlayer is arranged between the outer layer wall and the inner layer wall, the inner layer wall encloses to form an inner cavity, and a radar level gauge is arranged in the inner cavity; the outside of radome is provided with the intake pipe, the end of giving vent to anger of intake pipe with the cavity intermediate layer and the inner chamber intercommunication. According to the radar automatic detection device for the liquid level height of the molten iron tank, the radar level gauge is adopted to measure the liquid level height of the molten iron in the molten iron tank, and compared with manual visual measurement, the radar level gauge is safe and accurate in liquid level height measurement; double-deck hollow structure's radome structure carries high-pressure cold air through the intake pipe, carries out continuous blowing cooling simultaneously to radome's inner chamber and cavity intermediate layer respectively, and effectual reduction radar operating temperature around has prolonged radar charge level indicator's life.
Description
Technical Field
The utility model relates to the technical field of steel smelting, in particular to a radar automatic detection device for the liquid level height of a hot metal ladle.
Background
In the iron-making process, molten iron (with the temperature of more than 1500 ℃) in a molten state needs to be guided into a hot metal ladle from a blast furnace and transported to a subsequent process station by the hot metal ladle. The conventional process is to manually observe from above the hot metal ladle by naked eyes as to whether or not the hot metal is filled in the hot metal ladle and when the hot metal is filled.
At present, in a more advanced process, a radar is used for transmitting a radar wave to a hot metal ladle from the upper part of the hot metal ladle to detect the liquid level of molten iron, and the liquid level information is fed back to corresponding command control personnel. Due to the factors of severe working conditions and environment, high temperature and high dust, the temperature of molten iron is up to more than 1500 ℃, the ambient air temperature generally reaches more than 80 ℃, in addition, due to the existence of slag, very high dust amount exists around, and the service life and stability of the current liquid measuring radar are influenced by the factors of severe working conditions.
SUMMERY OF THE UTILITY MODEL
Based on the problems, the utility model aims to provide a radar automatic detection device for the liquid level height of a molten iron tank, which mainly uses a radar to replace manual visual observation, optimizes the specific structure of a radar cover, reduces the temperature and dust of the working environment around the radar through heat insulation and cooling measures, and improves the service life and stability of the radar.
The utility model adopts the following technical scheme:
the utility model provides a radar automatic detection device for the liquid level height of a molten iron tank, which comprises a radar cover consisting of an outer layer wall and an inner layer wall, wherein a cavity interlayer is arranged between the outer layer wall and the inner layer wall, the inner layer wall encloses to form an inner cavity, and a radar level gauge is arranged in the inner cavity;
the outside of radome is provided with the intake pipe, the end of giving vent to anger of intake pipe with the cavity intermediate layer and the inner chamber intercommunication.
Further, the radar level gauge comprises a radar body and a mounting flange;
the antenna end at the lower part of the radar body penetrates through a reserved opening at the bottom of the radar cover and then extends into the lower protective cover, a gap for ventilation and air guide is reserved between the radar body and the outer edge of the reserved opening, and the lower protective cover is fixed on the bottom surface of the radar cover;
the mounting flange is fixed the bottom of inner chamber, the last a plurality of first ventilation holes that are provided with of mounting flange, the inlayer wall with the corresponding region of mounting flange is provided with a plurality of second ventilation holes, second ventilation hole and each the first ventilation hole one-to-one intercommunication each other.
Further, the bottom of the lower shield is provided with heat insulation glass.
Furthermore, a plurality of air outlet holes are formed in the side wall of the lower shield.
Further, a gas purging pipe is arranged obliquely below the heat insulation glass.
Further, the gas purging pipe and the gas inlet pipe are communicated with a gas supply main pipe.
Furthermore, the radome is of a concave structure, and a top cover is arranged at the opening at the top of the radome.
Furthermore, both sides of the upper part of the radome are fixed on the bottom surface of the second floor slab through connecting seats.
Furthermore, the connecting seat is an angle steel, and an adjusting hole for adjusting the installation position of the radome is formed in the connecting seat.
The utility model also provides a radar automatic detection system for the liquid level height of the molten iron tank, which comprises the radar automatic detection device for the liquid level height of the molten iron tank.
Compared with the prior art, the utility model has the beneficial technical effects that:
according to the radar automatic detection device for the liquid level height of the molten iron tank, the radar level gauge is adopted to measure the liquid level height of the molten iron in the molten iron tank, and compared with manual visual measurement, the radar level gauge is safe and accurate in liquid level height measurement; the radome structure with the double-layer hollow structure conveys high-pressure cold air through the air inlet pipe, and continuously blows and cools the inner cavity and the cavity interlayer of the radome respectively, so that the working temperature around the radar is effectively reduced, and the service life of the radar level gauge is prolonged; the lower protective cover at the bottom of the radar cover can protect an antenna structure at the lower part of the radar, and cold air in the interlayer of the inner cavity and the cavity can flow into the lower protective cover to cool the antenna structure at the lower part of the radar; the heat insulation glass at the bottom of the lower shield can effectively isolate high-temperature gas and dust generated by molten iron, and the gas blowing pipe at the bottom can blow and cool the dust attached to the lower surface of the heat insulation glass, so that the radar can be always at a reasonable working temperature and under a reasonable visibility condition.
Drawings
The utility model is further illustrated in the following description with reference to the drawings.
FIG. 1 is a schematic structural diagram of a radar automatic detection device for the liquid level height of a molten iron tank in an embodiment of the utility model;
FIG. 2 is a schematic view of the gas communication between the inner cavity, the cavity sandwich and the lower shield according to an embodiment of the present invention;
FIG. 3 is a schematic view of the installation of the radome in accordance with one embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a connecting socket according to an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a radar automatic detection system for the liquid level height of a molten iron tank in the second embodiment of the utility model.
Description of reference numerals: 1. a radome; 101. an outer wall; 102. an inner wall; 2. a cavity interlayer; 3. an inner cavity; 4. a radar level gauge; 401. a radar body; 402. installing a flange; 5. an air inlet pipe; 6. reserving a port; 7. a lower shield; 8. a gap; 9. a first vent hole; 10. a second vent hole; 11. heat insulating glass; 12. an air outlet; 13. a gas purge tube; 14. a gas supply main pipe; 15. a top cover; 16. a connecting seat; 1601. an adjustment hole; 18. a hot-metal ladle; 19. and (4) the ground.
Detailed Description
In order to make the technical solutions of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings and the detailed description.
Example one
As shown in figures 1 and 2, disclose a hot metal bottle liquid level height radar automatic checkout device in this embodiment, including radome 1, be provided with inner chamber 3 in the radome 1, install radar charge level indicator 4 in the inner chamber 3. The radome 1 is composed of an outer wall 101 and an inner wall 102, and a cavity sandwich 2 is provided between the outer wall 101 and the inner wall 102. The outside of radome 1 is provided with intake pipe 5, and the end of giving vent to anger of intake pipe 5 communicates with cavity intermediate layer 2 and inner chamber 3.
The structure is characterized in that a radome structure with a double-layer hollow structure is used, high-pressure cold air is conveyed through an air inlet pipe 5, and continuous air blowing and cooling are respectively carried out on an inner cavity 3 and a cavity interlayer 2 of the radome, so that the working temperature around the radar is reduced; meanwhile, the radar cover 1 can also prevent dust from adhering to the radar.
In this embodiment, radome 1 is the character cut in bas-relief structure, and top cap 15 is installed through the bolt to radome 1's open-top portion, can overhaul the radar charge level indicator 4 in the inner chamber 3 and maintain through dismantling top cap 15.
In the prior art, the radar level gauge 4 structure typically comprises a radar body 401 and a mounting flange 402. The lower part of the radar body 401 is an antenna structure, and in this embodiment, the antenna end of the lower part of the radar body 401 extends to the outside of the radome 1. Specifically, reserved opening 6 is opened to the bottom of radome 1, and the antenna end of radar body 401 lower part extends to radome 1's outside after passing through reserved opening 6.
In order to protect the antenna structure at the lower part of the radar body 401, a lower shield 7 is provided around the radar antenna structure, and the lower shield 7 is welded to the bottom surface of the outer layer wall 101 of the radome 1.
It should be noted that, because the radome 1 has a double-wall structure, when the reserved opening 6 is formed, the reserved opening 6 needs to be formed on the outer wall 101 and the inner wall 102 at the same time, so that the antenna end at the lower portion of the radar body 401 can penetrate through the reserved opening 6 to the outside of the radome 1.
In order to introduce the cold air in the cavity interlayer 2 into the lower shield 7, a gap 8 for ventilation and air guiding is reserved between the radar body 401 and the outer edge of the reserved opening 6, and the cold air in the cavity interlayer 2 enters the lower shield 7 through the gap 8 to cool the antenna structure at the lower part of the radar.
A mounting flange 402 is secured to the bottom of the cavity 3 and in particular is bolted to the inner wall 102 of the radome 1. In order to allow the high-pressure cold air in the cavity 3 to be in a circulating state, the high-pressure cold air in the cavity 3 needs to be led out of the radome 1. As a possible implementation manner, in this embodiment, the mounting flange 402 is provided with a plurality of first vent holes 9, a plurality of second vent holes 10 are provided in an area of the inner-layer wall 102 corresponding to the mounting flange 402, and the second vent holes 10 communicate with the first vent holes 9 in a one-to-one correspondence manner.
The high-pressure cold air in the inner cavity 3 enters the cavity interlayer 2 through the first vent holes 9 and the second vent holes 10, joins with the high-pressure air in the cavity interlayer 2, and finally enters the lower shield 7 through the gap 8, and the first vent holes 9 are distributed around the radar body 401, so that heat around the radar body 401 can be effectively generated.
The lower shield 7 has a lower opening structure, and in order to prevent dust and high temperature from affecting the operation of the radar antenna, a heat insulation glass 11 is disposed at the bottom of the lower shield 7. The heat insulating glass 11 is fixed in a central circular hole of a flange ring, and the flange ring is fixed on the lower shield 7 through bolts.
The setting of insulating glass 11 can be effectual prevents dust to the radar antenna, but has also influenced the gaseous discharge of high-pressure gas in lower guard shield 7, for make the gaseous exhaust external world of high-pressure gas in lower guard shield 7, has seted up a plurality of ventholes 12 on the lateral wall of lower guard shield 7.
After the heat insulating glass 11 is used for a long time, a large amount of dust adheres to the lower surface of the heat insulating glass 11, and in order to remove the dust on the lower surface of the heat insulating glass 11, a gas purge pipe 13 is provided obliquely below the heat insulating glass 11, and high-pressure gas passes through the gas purge pipe 13 to blow off the dust adhered to the lower surface of the heat insulating glass 11 and reduce the temperature.
In the present embodiment, the gas purge pipe 13 and the intake pipe 5 both communicate with the supply header 14.
As shown in fig. 3, the radome 1 of the present invention is installed upside down below the second floor 17, and specifically, connection seats 16 are provided at both sides of the upper portion of the radome 1, and the radome 1 is fixed on the bottom surface of the second floor 17 by the connection seats 16
The radome 1 is over against the hot metal ladle 18, and can effectively monitor the liquid level of the hot metal in real time. This structure is invertd and is installed below the floor, does not influence the operation of second floor personnel completely and walks about, also can not trompil on the floor, not only reduces the construction degree of difficulty, reduces the destruction to the floor, and more importantly can effectively reduce the influence of molten iron heat radiation to the second floor.
In this embodiment, as shown in fig. 4, the connecting base 16 is an angle steel, and an adjusting hole 1601 for adjusting the installation position of the radome 1 is provided on the connecting base 16. Adjusting holes 1601 on the horizontal part of the angle steel are perpendicular to the length direction and are used for adjusting the distance between two connecting seats 16 and the left and right mounting positions. The adjusting hole 1601 on the vertical part of the angle steel is parallel to the length direction and used for adjusting the front and back installation positions of the radome 1
Example two
On the basis of the hot metal bottle liquid level height radar automatic checkout device of the first embodiment, the embodiment provides a hot metal bottle liquid level height radar automatic checkout system, which comprises the hot metal bottle liquid level height radar automatic checkout device in the first embodiment.
As shown in fig. 5, the system further includes an industrial personal computer, a network switch, a plc controller, a large display screen, an alarm closing button, an air source switch button, and an electromagnetic valve.
The industrial computer and network switch electric connection, the network switch can be connected with a plurality of plc controllers, every plc controller can be connected with a plurality of alarms electricity again, the AI module of plc controller is connected with 4 electricity of a plurality of radar charge level indicators, radar charge level indicator 4 is to controller (plc controller, industrial computer) output signal, control through A/D conversion with signal conversion to represent the four-digit significant digit of liquid level height to show on the display screen. The radar level gauge 4 monitors the liquid level height in the molten iron tank constantly, when the liquid level height exceeds a set value, the alarm corresponding to the radar level gauge 4 gives an alarm, and a controller controls to stop injecting molten iron into the molten iron tank.
The electromagnetic valve is arranged on the air source passage, particularly on the air supply main pipe 14, the electromagnetic valve is electrically connected with the air source switch button, and the air source switch button controls the connection or disconnection of the air source passage by controlling the on-off of the electromagnetic valve. The air supply pipe carries out continuous air blowing and cooling to the inner chamber and the hollow interlayer cavity of the radome respectively, reduces the working temperature around the radar, and because the cavity in the radome is the inflated malleation state, and has certain air blowing flow all the time, both the cooling also falls the dust, cooperates bottom glass to sweep the mouth, can make the radar be in under more reasonable working temperature and visibility all the time.
The system can not only accurately measure the liquid level of the hot metal ladle, but also conveniently and timely inform operators, and can provide the functions of liquid level alarm and on-site cooling gas closing
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are within the scope of the present invention defined by the claims.
Claims (10)
1. The radar automatic detection device for the liquid level height of the molten iron tank is characterized by comprising a radar cover (1) formed by an outer layer wall (101) and an inner layer wall (102), wherein a cavity interlayer (2) is arranged between the outer layer wall (101) and the inner layer wall (102), the inner layer wall (102) is enclosed to form an inner cavity (3), and a radar level gauge (4) is arranged in the inner cavity (3);
the outside of radome (1) is provided with intake pipe (5), the end of giving vent to anger of intake pipe (5) with cavity intermediate layer (2) and inner chamber (3) intercommunication.
2. The radar automatic detection device for the liquid level height of the molten iron tank according to claim 1, wherein: the radar level gauge (4) comprises a radar body (401) and a mounting flange (402);
the antenna end at the lower part of the radar body (401) penetrates through a reserved opening (6) at the bottom of the radar cover (1) and then extends into a lower protective cover (7), a gap (8) for ventilation and air guide is reserved between the radar body (401) and the outer edge of the reserved opening (6), and the lower protective cover (7) is fixed on the bottom surface of the radar cover (1);
the mounting flange (402) is fixed the bottom of inner chamber (3), be provided with a plurality of first ventilation holes (9) on mounting flange (402), inlayer wall (102) with the corresponding region of mounting flange (402) is provided with a plurality of second ventilation holes (10), second ventilation hole (10) and each first ventilation hole (9) one-to-one intercommunication each other.
3. The radar automatic detection device for the liquid level height of the molten iron tank according to claim 2, wherein: and the bottom of the lower shield (7) is provided with heat insulation glass (11).
4. The radar automatic detection device for the liquid level height of the molten iron tank according to claim 3, wherein: the side wall of the lower shield (7) is provided with a plurality of air outlet holes (12).
5. The radar automatic detection device for the liquid level height of the molten iron tank according to claim 3, wherein: and a gas purging pipe (13) is arranged obliquely below the heat insulation glass (11).
6. The radar automatic detection device for the liquid level height of the molten iron tank according to claim 5, wherein: and the gas purging pipe (13) and the gas inlet pipe (5) are communicated with a gas supply main pipe (14).
7. The radar automatic detection device for the liquid level height of the molten iron tank according to claim 1, wherein: radome (1) is character cut in bas-relief structure, radome (1)'s top opening part is provided with top cap (15).
8. The radar automatic detection device for the liquid level height of the molten iron tank according to claim 1, wherein: both sides of the upper part of the radome (1) are fixed on the bottom surface of a second floor slab (17) through connecting seats (16).
9. The radar automatic detection device for the liquid level height of the molten iron tank according to claim 8, wherein: the connecting seat (16) is an angle steel, and an adjusting hole (1601) used for adjusting the installation position of the radome (1) is formed in the connecting seat (16).
10. The utility model provides a hot metal bottle liquid level height radar automatic check out system which characterized in that: the radar automatic detection device for the liquid level height of the molten iron tank comprises the radar automatic detection device for the liquid level height of the molten iron tank according to any one of the claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122164063.9U CN215677210U (en) | 2021-09-08 | 2021-09-08 | Hot metal bottle liquid level height radar automatic checkout device and system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122164063.9U CN215677210U (en) | 2021-09-08 | 2021-09-08 | Hot metal bottle liquid level height radar automatic checkout device and system |
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| CN215677210U true CN215677210U (en) | 2022-01-28 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114754839A (en) * | 2022-06-14 | 2022-07-15 | 河北华创测控技术有限公司 | Liquid level monitoring device and system for ladle |
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2021
- 2021-09-08 CN CN202122164063.9U patent/CN215677210U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114754839A (en) * | 2022-06-14 | 2022-07-15 | 河北华创测控技术有限公司 | Liquid level monitoring device and system for ladle |
| CN114754839B (en) * | 2022-06-14 | 2022-09-02 | 河北华创测控技术有限公司 | Liquid level monitoring device and system for ladle |
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