CN218345492U

CN218345492U - Embedded type air-cooled radar molten iron liquid level measurement and control device

Info

Publication number: CN218345492U
Application number: CN202222888788.7U
Authority: CN
Inventors: 尹宝书
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-10-31
Filing date: 2022-10-31
Publication date: 2023-01-20
Anticipated expiration: 2032-10-31

Abstract

The utility model relates to an bury formula forced air cooling radar molten iron liquid level measurement and control device, belong to steel smelting technical field, it includes that the iron hook apron is arranged in flatly and protects the apron, it is less than 50mm to protect the apron to expose the height of iron hook apron upper surface, it has the installation piece to protect the apron towards iron hook apron one side rigid coupling, iron hook apron below is arranged in to the installation piece, the cavity has been seted up in the installation piece, install the radar meter that is used for detecting molten iron liquid level height in the cavity, the radar meter includes the radar antenna, the radar antenna is located radar table tip and arranges the installation piece in outside, the cover is equipped with the antenna protection tube on the lateral wall of installation piece, the forced air cooling cavity has been seted up in the antenna protection tube, it is equipped with the intake pipe to protect the apron to keep away from signal line one end, the intake pipe passes the protection apron and places in the forced air cooling cavity, the forced air cooling cavity is seted up a plurality of holes that are used for cooling and sweep the radar antenna towards radar antenna one side. The application has the effects of beautifying in front of the furnace, brightening, facilitating development of daily production and using low maintenance amount.

Description

Embedded type air-cooled radar molten iron liquid level measurement and control device

Technical Field

The application relates to the technical field of steel smelting, in particular to a buried type air-cooled radar molten iron liquid level measurement and control device.

Background

Molten iron produced in the blast furnace smelting process flows into a ladle through a molten iron groove, and the molten iron is filled into the ladle, wherein the molten iron in the ladle can cause high-temperature and high-dust environment to be formed around due to the huge temperature difference between the ambient environment and the molten iron, particularly, the overflow of the ladle is not easy to be observed by naked eyes under the condition of large ambient humidity, and the molten iron in the ladle overflows to damage transportation equipment due to improper operation, so that the overflow of the ladle is usually controlled by measuring the liquid level in the ladle in real time through a molten iron level meter.

At present, the molten iron level meter adopted on the market is generally installed above an iron runner cover plate by the height of about 700mm protruding from the iron hook cover plate in front of the furnace, the development of the daily work in front of the furnace and the maintenance of instruments are influenced, the molten iron level meter is not convenient to disassemble and assemble, and the requirements of beautifying and brightening in front of the furnace are not met.

SUMMERY OF THE UTILITY MODEL

In order to meet the requirements of stokehole beautification and brightening and facilitate development of daily production, the application provides the embedded type air-cooled radar molten iron liquid level measurement and control device.

The application provides a bury formula forced air cooling radar molten iron liquid level measurement and control device adopts following technical scheme:

the utility model provides an bury formula forced air cooling radar molten iron liquid level measurement and control device, includes that the iron hook apron is arranged in flatly to protect the apron, the protection apron exposes highly being less than 50mm of iron hook apron upper surface, the protection apron has the installation piece towards iron hook apron one side rigid coupling, iron hook apron below is arranged in to the installation piece, the cavity has been seted up in the installation piece, install the radar meter that is used for detecting molten iron liquid level height in the cavity, the radar meter includes the signal line, the signal line passes the lateral wall of installation piece with the protection apron and be connected with and be used for gathering the collection box of radar table signal, the radar meter still includes the radar antenna, and the radar antenna is located radar table tip and arranges in outside the installation piece, the cover is equipped with the antenna protection pipe on the lateral wall of installation piece, open the forced air cooling cavity in the antenna protection pipe, the protection apron is kept away from signal line one end be equipped with be used for to the intake pipe that lets in compressed air in the forced air cooling cavity, the intake pipe passes the protection apron is arranged in the forced air cooling cavity, the forced air cooling cavity is seted up towards radar antenna one side.

By adopting the technical scheme, the radar meter adopts an ultrahigh frequency technology, so that the accuracy of the measured molten iron height is ensured by the specific function and mode of the radar meter, and the data is stable. The radar antenna generates radar waves to the medium, the radar antenna receives the reflected radar waves, collected information is transmitted into the collection box through a signal line, compressed air or nitrogen is introduced into the air cooling cavity through an air inlet pipe and sweeps the radar antenna through a sweeping hole when the radar antenna is used, therefore, floating dust on the radar antenna is cleaned, the temperature of the radar meter is controlled below eighty degrees, the radar meter is kept in a normal working state, the high-temperature radiation of molten iron below the radar meter is transmitted to the radar meter, the probability of interference on the measurement of the radar meter is further generated, the practicability of the device is improved, the maintenance frequency of the device is reduced, and the device is more reliable and practical.

Meanwhile, the device is small in design, simple in structure and convenient to use and maintain, if a stokehole worker overhauls the device, only the quick air source connector needs to be disconnected, the device is movably and horizontally arranged on the stokehole iron hook cover plate and is not connected with the iron hook cover plate at any time, so that the embedded type air-cooled radar molten iron liquid level measurement and control device can be quickly lifted, connecting wires are moved beside the device and are temporarily placed, the device can be quickly restored to be arranged after the overhaul of the maintainer, and the maintenance intensity of the instrument worker is reduced.

And the whole radar is arranged below the surface layer of the iron hook cover plate or the smoke hood, and the whole structure is 50mm smaller than the surface layer of the iron hook cover plate or the smoke hood before the whole radar goes out of the furnace, so that the working face in front of the furnace is wide and flat, the obstruction to daily production is reduced, the development of daily production work is facilitated, and the intermediate signal transmission equipment suitable for requirements is provided for realizing the nobody in front of the furnace, beautifying and brightening in front of the furnace.

Optionally, the air-cooled chamber surrounds the radar meter and encloses a cooling area for cooling and purging the radar.

Through adopting above-mentioned technical scheme, the cooling zone is arranged in to the antenna of radar table to annular air-cooled cavity, and through the interior gas flow of cavity and through sweeping the mouth and cooling down on to the radar antenna, the air-cooled cavity that the annular set up can improve radar antenna's cooling efficiency, ensures that the operational environment temperature of radar table is normal.

Optionally, the cooling area is set to be conical, and a cross-sectional diameter of the cooling area on a side close to the radar antenna is smaller than a cross-sectional diameter of a side far from the radar antenna.

By adopting the technical scheme, the horn-shaped radar waves can be matched with the conical cooling area arranged on the antenna protection tube, so that the obstruction of the antenna protection tube on the conduction of the radar waves is reduced, and the reflection efficiency of the electromagnetic waves emitted by the radar antenna on the surface of molten iron can be improved.

Optionally, the cooling zone is provided in a straight cylinder shape.

By adopting the technical scheme, the processing difficulty of the antenna to the protection tube can be reduced, the process difficulty is reduced, and the conducted interference to radar waves is smaller.

Optionally, the cooling area is set to be step-shaped with different widths, and the width of the cross section of the cooling area close to the radar antenna side is smaller than the width of the cross section of the cooling area far from the radar antenna side.

By adopting the technical scheme, the step shape can improve the induction efficiency of the radar antenna to radar waves relative to the straight cylindrical cooling zone.

Optionally, the radar antenna is hemispherical, and the number of the blowing holes around the center of the radar antenna is 8 or 10.

Through adopting above-mentioned technical scheme, hemispherical radar can improve the transmitting signal of radar wave and accept the efficiency of returning the signal, but the blowing hole around radar antenna setting simultaneously cools down the radar high-efficiently, improves radar antenna's cooling rate.

Optionally, the air inlet pipe is arranged in one end in the air cooling cavity and is set to be arc-shaped, an annular partition plate is arranged in the air cooling cavity, the partition plate surrounds one end, far away from the protective cover plate, of the mounting block and is fixedly connected with the mounting block, and a gap exists between the partition plate and the antenna protection tube.

Through adopting above-mentioned technical scheme, can make the intake pipe form annular air current to the indoor compressed air or the nitrogen that lets in of forced air cooling cavity, make its even circulation to the forced air cooling cavity of each position in, improve the speed of air current circulation in the forced air cooling cavity, improve the cooling efficiency of forced air cooling cavity to radar antenna from this.

Optionally, the total area of the inner diameters of the purge holes is larger than the area of the pipe orifice of the air inlet pipe.

By adopting the technical scheme, the possibility that the antenna protection tube expands due to the fact that the air inlet tube is introduced into the air cooling cavity in an excessive unit volume can be reduced, equipment for monitoring the air volume in the air inlet tube and arranged on the air inlet tube can be omitted, and the process cost is reduced.

Optionally, the outer wall of the signal line is wrapped by anti-scald cloth, and the outer sleeve of the signal line is provided with a layer of anti-scald rubber tube.

Through adopting above-mentioned technical scheme, prevent scalding cloth and prevent scalding the influence of the reducible external temperature of rubber tube to the signal line, can play the effect of a protection to the signal line from this.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the device has the advantages that the radar antenna is swept by the sweep hole by introducing compressed air or nitrogen into the air cooling cavity through the air inlet pipe by using the necessary compressed gas in front of the blast furnace, so that floating dust on the radar antenna is cleaned, and the temperature of the radar meter is controlled to be below eighty degrees, so that the high-temperature radiation of molten iron below is reduced and transmitted to the radar meter, the probability of interference on the measurement of the radar meter is further reduced, the practicability of the device is improved, the maintenance frequency of the device is reduced, and the device is more reliable and practical;

2. the horn-shaped radar waves can be matched with a conical cooling area arranged on the antenna protection tube, so that the obstruction of the antenna protection tube to the conduction of the radar waves is reduced, and the reflection efficiency of electromagnetic waves emitted by the radar antenna to the surface of molten iron can be improved;

3. compressed air or nitrogen that can make the intake pipe let in to the air-cooled cavity forms annular air current, makes in its even circulation to the air-cooled cavity of each position, improves the speed of air current circulation in the air-cooled cavity, improves the cooling efficiency of air-cooled cavity to radar antenna from this.

Drawings

FIG. 1 is a schematic view of the overall structure of embodiment 1 of the present application;

FIG. 2 is a schematic structural diagram of a radar in embodiment 1 of the present application;

FIG. 3 is a schematic structural diagram of embodiment 2 of the present application;

FIG. 4 is a schematic structural diagram of embodiment 3 of the present application;

description of reference numerals: 1. a protective cover plate; 11. a cover body; 2. mounting blocks; 21. a cavity; 3. a radar meter; 31. a signal line; 32. a radar antenna; 4. an antenna protection tube; 41. an air-cooled chamber; 42. a purge hole; 43. a cooling zone; 44. a partition plate; 5. an air inlet pipe; 6. anti-scald rubber tubes; 7. iron hook cover plate.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

Example 1

The embodiment of the application discloses bury formula forced air cooling radar molten iron liquid level measurement and control device. Referring to fig. 1 and 2, an embedded type air-cooled radar molten iron liquid level measurement and control device comprises a protective cover plate 1 arranged on an iron hook cover plate 7 in a horizontal mode, wherein the height of the protective cover plate 1 is smaller than 50mm, the protective cover plate 1 is fixedly connected with an installation block 2 towards one side of the iron hook cover plate 7, the installation block 2 and the iron hook cover plate 7 form a T shape, and the installation block 2 is arranged below the iron hook cover plate 7.

Protection apron 1 includes lid 11, and lid 11 rotates to be connected on protection apron 1, and protection apron 1 has seted up cavity 21 and has protected apron 1's cavity 21 to be located lid 11 below, has seted up the same cavity 21 in installation piece 2 and is linked together with protection apron 1's cavity 21, installs the radar gauge 3 that is used for detecting the molten iron liquid level in the cavity 21.

The radar watch 3 comprises a hemispherical radar antenna 32 and a signal line 31 for transmitting information of the radar watch 3, and the cambered surface of the radar antenna 32 is arranged outside the mounting block 2. The signal line 31 of radar table 3 passes through the lateral wall of installation piece 2 and protection apron 1 in proper order and wears out from the tip of protecting apron 1, and is connected with the collection box that is used for gathering radar table 3 response information, and the signal collection box is not drawn in the picture. In order to reduce the influence of high-temperature radiation on the signal line 31, the signal line 31 is wrapped with anti-scald cloth, an anti-scald rubber tube 6 is arranged outside the anti-scald cloth, and the signal line 31 wrapped with the anti-scald cloth is arranged inside the anti-scald rubber tube 6.

The cover is equipped with antenna protection tube 4 on the lateral wall of installation piece 2, antenna protection tube 4 encircles in radar antenna 32 setting, antenna protection tube 4 is inside to be seted up air-cooled chamber 41 and air-cooled chamber 41 encircles in radar meter 3 setting, air-cooled chamber 41 has been enclosed and has been used for the cooling and has swept cooling space 43 of radar antenna 32, in order to reduce the hindrance of antenna protection tube 4 to the conduction of radar wave, antenna protection tube 4 sets up to the toper and is close to radar antenna 32 one end and contracts gradually around radar antenna 32's cooling space 43 that radar antenna 32 set up, air-cooled chamber 41 sets up a plurality of blowing holes 42 that are used for the cooling and sweep radar antenna 32 towards radar antenna 32 one side, blowing holes 42 set up to eight and set up around radar antenna 32's centre of a circle equidistance.

The protection cover plate 1 is kept away from signal line 31 one end and is equipped with the intake pipe 5 that is used for letting in compressed air or nitrogen gas in the air-cooled cavity 41, simultaneously in order to improve the security of air-cooled cavity 41, the mouth of pipe area of intake pipe 5 slightly is lighter than the total area of the internal diameter of eight purge holes 42, install the valve on the intake pipe 5, intake pipe 5 passes protection cover plate 1 and places in air-cooled cavity 41 and intake pipe 5 places the one end in air-cooled cavity 41 in and sets up to the arc, the tip that the one end of protection cover plate 1 was kept away from to installation piece 2 is equipped with the annular baffle 44 that is used for blockking the air current, baffle 44 is placed in air-cooled cavity 41 and baffle 44 sets up around the lateral wall of installation piece 2, leave the gap that makes the air current pass through between the inside wall of baffle 44 and air-cooled cavity 41. The air flow introduced into the air-cooled chamber 41 through the inlet pipe 5 can form an annular air flow through the end of the arc-shaped inlet pipe 5, and can uniformly circulate in the air-cooled chamber 41 through the choked flow of the partition plate 44.

The implementation principle of the embodiment 1 is as follows: the radar antenna 32 generates radar waves to a medium to be measured, the radar antenna 32 receives the reflected radar waves, collected information is transmitted into the collection box through the signal line 31, meanwhile, compressed gas or nitrogen is transmitted into the air cooling cavity 41 through the air inlet pipe 5, and the radar antenna 32 is blown through the blowing holes 42, so that floating dust on the radar antenna 32 is cleaned, and a proper working environment is provided for the radar meter 3.

Example 2

Referring to fig. 3, the difference from embodiment 1 is that: the cooling section 43 is provided in a step shape having different widths, and the width of the cross section of the cooling section 43 on the side close to the radar antenna 32 is smaller than the width of the cross section of the cooling section 43 on the side away from the radar antenna 32.

Example 3

Referring to fig. 4, the difference from embodiment 1 is that: the cooling zone 43 is provided in a straight tubular shape for easy processing.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides an bury formula forced air cooling radar molten iron liquid level measurement and control device, its characterized in that, including arranging protection apron (1) on iron hook apron (7) in, protection apron (1) exposes highly being less than 50mm of iron hook apron (7) upper surface, protection apron (1) has installation piece (2) towards iron hook apron (7) one side rigid coupling, iron hook apron (7) below is arranged in installation piece (2), cavity (21) have been seted up in installation piece (2), install radar meter (3) that are used for detecting molten iron liquid level height in cavity (21), radar meter (3) are including signal line (31), signal line (31) pass the lateral wall of installation piece (2) with protection apron (1) is connected to have and is used for gathering the collection box of radar meter (3) signal, radar meter (3) still include radar antenna (32), and radar antenna (32) are located radar meter (3) tip and arrange in outside installation piece (2), the cover is equipped with antenna (4) on the lateral wall of installation piece (2), antenna (4) is equipped with protection pipe (4) protection pipe (31) is equipped with air cooling signal indoor protection pipe (41) and air inlet pipe (31) is used for air inlet pipe (31) to air cooling signal chamber (31), the air inlet pipe (5) penetrates through the protective cover plate (1) and is arranged in the air cooling chamber (41), and a plurality of blowing holes (42) used for cooling and blowing the antenna of the radar meter (3) are formed in one side, facing the radar antenna (32), of the air cooling chamber (41).

2. The embedded type air-cooled radar molten iron liquid level measurement and control device as claimed in claim 1, wherein: the air cooling chamber (41) is arranged around the radar meter (3) and encloses a cooling area (43) for cooling and purging the radar.

3. The embedded type air-cooled radar molten iron liquid level measurement and control device as claimed in claim 2, wherein: the cooling area (43) is arranged in a conical shape, and the cross-sectional diameter of the cooling area (43) on the side close to the radar antenna (32) is smaller than that on the side far away from the radar antenna (32).

4. The embedded type air-cooled radar molten iron liquid level measurement and control device as claimed in claim 2, wherein: the cooling zone (43) is provided in a straight tubular shape.

5. The embedded type air-cooled radar molten iron liquid level measurement and control device as claimed in claim 2, wherein: the cooling area (43) is arranged in a step shape with different widths, and the width of the cross section of the cooling area (43) close to the radar antenna (32) side is smaller than the width of the cross section of the cooling area (43) far away from the radar antenna (32) side.

6. The embedded type air-cooled radar molten iron liquid level measurement and control device as claimed in claim 2, wherein: the radar antenna (32) is hemispherical, and the number of the blowing holes (42) is 8 or 10 uniformly around the center of the radar antenna (32).

7. The embedded type air-cooled radar molten iron liquid level measurement and control device as claimed in claim 2, wherein: intake pipe (5) are arranged in one end in air-cooled chamber (41) sets up to the arc, be equipped with annular baffle (44) in air-cooled chamber (41), baffle (44) center on installation piece (2) are kept away from the one end setting of protection apron (1) and with installation piece (2) rigid coupling, baffle (44) with there is the space between antenna protection tube (4).

8. The embedded type air-cooled radar molten iron liquid level measurement and control device as claimed in claim 1, wherein: the total area of the inner diameter of the blowing holes (42) is larger than the area of the pipe orifice of the air inlet pipe (5).

9. The embedded type air-cooled radar molten iron liquid level measurement and control device as claimed in claim 1, wherein: the outer side wall of the signal wire (31) is wrapped with anti-scald cloth, and a layer of anti-scald rubber tube (6) is sleeved outside the signal wire (31).