CN210877534U

CN210877534U - Sound-light-electricity alarming bleed-out protection device

Info

Publication number: CN210877534U
Application number: CN201921221143.XU
Authority: CN
Inventors: 楼伟康; 陈刚
Original assignee: Jiangsu Hanqing Special Alloy Co ltd
Current assignee: Jiangsu Hanqing Special Alloy Co ltd
Priority date: 2019-07-31
Filing date: 2019-07-31
Publication date: 2020-06-30
Anticipated expiration: 2029-07-31

Abstract

The utility model provides a bleed-out protection device of reputation electric alarm, belongs to steel smelting technical field, including firebrick layer, wire net, clay, cement layer, electrode bar one, electrode bar two and protection circuit, firebrick layer, wire net, clay and cement layer set gradually according to by order outside interior, be equipped with the cavity between clay and the cement layer, be equipped with the cooling water in the cavity, the one end setting of electrode bar one is in firebrick intraformational molten steel to the other end of electrode bar one passes through the electric wire and is connected with protection circuit, the one end and the wire net of electrode bar two are connected to the other end of electrode bar two passes through the electric wire and is connected with protection circuit. The utility model discloses can take place to damage when the firebrick layer, switch on protection circuit through electrode bar one and electrode bar two, carry out the warning of bleed-out, avoid taking place molten steel and the danger that the cooling water contact took place to explode, improve the security of production process, guarantee production staff's safety.

Description

Sound-light-electricity alarming bleed-out protection device

Technical Field

The utility model belongs to the technical field of the iron and steel is smelted, specifically, relate to an acoustic-optical electric alarm's bleed-out protection device.

Background

Along with the development of the world economy and the scientific technology, the requirements on the quality of steel products are higher and higher, so the smelting technology is greatly changed and is continuously developed compared with the traditional smelting mode.

The ladle is a container for containing molten steel and is a component of refining equipment, and the lining of the ladle bears the impact of high-temperature molten steel and the erosion of steel slag when the ladle works, so that the steel leakage accident of the ladle occurs. Once a steel ladle breakout accident occurs, molten steel in a steel ladle and the steel ladle is lost, the leaked molten steel is directly contacted with cooling water due to a specific position where the steel ladle is poured, explosion occurs seriously, and economic loss caused to production enterprises is very large.

In order to solve the steel leakage accident of the steel ladle, many metallurgical workers start from improving the quality of the lining refractory material of the steel ladle, and meet the quality requirement of the continuous casting steel ladle in modern production by improving and changing the quality and the material of the lining refractory material, adding impact bricks and other means. The result of the above research, although improving the service life of the ladle, still does not fundamentally solve the problem of breakout accident.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: the utility model aims at providing an acousto-optic electric warning's bleed-out protection device has solved in the ladle use, and the ladle takes place to leak, causes the molten steel to spill the problem that has the potential safety hazard.

The technical scheme is as follows: the utility model provides a bleed-out protection device with acousto-optic and electric alarm, which comprises a firebrick layer, a steel wire mesh, cement, a cement layer, a first electrode rod, a second electrode rod and a protection circuit, wherein the cement layer is poured into a cylinder shape and is arranged in the ground, the firebrick layer is arranged in the cement layer, the steel wire mesh and the cement are arranged between the firebrick layer and the cement layer, the firebrick layer, the steel wire mesh, the cement and the cement layer are sequentially arranged from inside to outside, a cavity is arranged between the cement and the cement layer, cooling water is arranged in the cavity, molten steel can be filled in the firebrick layer, one end of the first electrode rod is arranged in the molten steel in the firebrick layer, the other end of the first electrode rod is connected with the protection circuit through an electric wire, one end of the second electrode rod is connected with the steel wire mesh, and the other end of the second electrode rod is connected with the, the first electrode bar and the second electrode bar are respectively connected with two poles of the protection circuit. The utility model discloses a bleed-out protection device of reputation electric alarm can switch on protection circuit through electrode bar one and electrode bar two when the firebrick layer takes place to damage, carries out the warning of bleed-out, avoids taking place molten steel and cooling water contact danger of exploding, has improved the security of production process, has guaranteed production staff's safety.

Further, foretell bleed-out protection device of reputation electric warning, protection circuit includes power, master switch, fuse, first parallel branch road, the parallel branch road of second and the parallel branch road of third, the one end of master switch is connected with the anodal of power to the other end and the fuse of master switch are connected, the fuse is connected with first parallel branch road, the parallel branch road of second and the parallel branch road of third to first parallel branch road, the parallel branch road of second and the parallel branch road of third are connected with the negative pole of power.

Further, foretell bleed-out protection device of reputation electric alarm, first parallel branch road includes the normally closed contact of first hand switch, green pilot lamp and contactor, the normally closed contact series connection of first hand switch, green pilot lamp and contactor.

Further, according to the steel leakage protection device with the acousto-optic-electric alarm function, the second parallel branch comprises the contactor, the switch formed by the first electrode rod and the second electrode rod is arranged in the second parallel branch, and the switch formed by the first electrode rod and the second electrode rod is connected with the contactor in series.

Further, according to the steel leakage protection device with the acoustic-optical-electric alarm function, the third parallel branch comprises a switch power supply, a red indicator light, a buzzer and a normally open contact of a contactor, the positive pole of the power supply is connected to the power input end of the switch power supply through the normally open contact of the contactor and the negative pole of the power supply respectively, and the red indicator light and the buzzer are connected with the power output end of the switch power supply.

Furthermore, according to the steel leakage protection device with the acousto-optic-electric alarm function, the upper end parts of the refractory brick layer and the cement layer are covered with a group of cover plates, and the cover plates are provided with first through holes.

Furthermore, according to the acoustic-optical-electric alarm breakout protection device, the cavity is internally provided with the cooling water inlet pipe and the cooling water outlet pipe, and the cooling water inlet pipe and the cooling water outlet pipe are both in contact with the cooling water in the cavity.

Further, according to the steel leakage protection device with the acoustic-optical-electric alarm function, the cover plate is provided with a molten steel pouring opening, and the section of the molten steel pouring opening is trapezoidal.

Further, in the steel leakage protection device with the acoustic-optical-electric alarm, the bottom surface of the inner wall of the molten steel pouring opening is an inclined surface, and the inclined surface faces to the middle position of the refractory brick layer in the inclined direction.

Above-mentioned technical scheme can find out, the utility model discloses following beneficial effect has: sound photoelectric alarm's bleed-out protection device, simple structure, reasonable, convenient to use, it is with low costs to use, adaptability is good, can carry out the status indication of normal work, simultaneously, to the condition in case of taking place the bleed-out, can in time report to the police, suggestion staff handles as early as possible, has avoided the emergence of accident, has improved the safety in production place, job stabilization is reliable, has very high spreading value.

Drawings

FIG. 1 is a schematic structural view of the acoustic-optic-electric alarm bleed-out protector of the present invention;

FIG. 2 is a top view of the acoustic-optic-electric alarm bleed-out protector of the present invention;

fig. 3 is an electrical schematic diagram of the protection circuit of the present invention.

In the figure: refractory brick layer 1, wire net 2, daub 3, cement layer 4, electrode bar 5, electrode bar 6, protection circuit 7, power 71, first manual switch 741, green pilot lamp 742, normally closed contact 743 of contactor, master switch 72, fuse 73, first branch 74 that connects in parallel, second branch 75 that connects in parallel, contactor 751, third branch 76 that connects in parallel, switching power 761, red pilot lamp 762, bee calling organ 763, normally open contact 764 of contactor, cavity 8, apron 9, first through-hole 10, cooling water inlet pipe 11, cooling water outlet pipe 12, molten steel pouring opening 13, inclined plane 14.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Examples

The steel leakage protection device with the acousto-optic-electric alarm function shown in the figures 1 and 2 comprises a firebrick layer 1, a steel wire mesh 2, cement 3, a cement layer 4, an electrode rod 5, an electrode rod two 6 and a protection circuit 7, wherein the cement layer 4 is poured into a cylindrical shape and is arranged in the ground, the firebrick layer 1 is arranged in the cement layer 4, the steel wire mesh 2 and the cement 3 are arranged between the firebrick layer 1 and the cement layer 4, the firebrick layer 1, the steel wire mesh 2, the cement 3 and the cement layer 4 are sequentially arranged from inside to outside, a cavity 8 is arranged between the cement 3 and the cement layer 4, cooling water is arranged in the cavity 8, molten steel can be filled into the firebrick layer 1, one end of the electrode rod one 5 is arranged in the molten steel in the firebrick layer 1, the other end of the electrode rod one 5 is connected with the protection circuit 7 through an electric wire, one end of the electrode rod two 6 is connected with the steel wire mesh 2, the other end of the second electrode bar 6 is connected with a protection circuit 7 through a wire, and the first electrode bar 5 and the second electrode bar 6 are respectively connected with two poles of the protection circuit 7. The upper end cover of firebrick layer 1 and cement layer 4 is equipped with a set of apron 9, be equipped with first through-hole 10 on the apron 9. And a cooling water inlet pipe 11 and a cooling water outlet pipe 12 are arranged in the cavity 8, and the cooling water inlet pipe 11 and the cooling water outlet pipe 12 are both in contact with cooling water in the cavity 8. The cover plate 9 is provided with a molten steel pouring opening 13, and the section of the molten steel pouring opening 13 is trapezoidal. The bottom surface of the inner wall of the molten steel pouring spout 13 is an inclined surface 14, and the inclined surface 14 is inclined toward the middle of the refractory brick layer 1. The electrode rod I5 and the electrode rod II 6 can adopt graphite electrodes.

The utility model discloses a bleed-out protection device of reputation electric alarm's theory of operation does: after molten steel is poured into the refractory brick layer 1, once steel leakage of the refractory brick layer 1 occurs, the molten steel can contact the steel wire mesh 2, the electrode rod I5 and the electrode rod II 6 correspond to two poles of a switch, and the electrode rod I5 and the electrode rod II 6 are respectively connected with the molten steel and the steel wire mesh 2, so that after the molten steel leaks and contacts the steel wire mesh 2, the electrode rod I5 and the electrode rod II 6 are closed, a protection circuit 7 is connected, and therefore molten steel leakage alarm is given.

The protection circuit 7 shown in fig. 3 includes a power supply 71, a main switch 72, a fuse 73, a first parallel branch 74, a second parallel branch 75, and a third parallel branch 76, one end of the main switch 72 is connected to a positive electrode of the power supply 71, and the other end of the main switch 72 is connected to the fuse 73, the fuse 73 is connected to the first parallel branch 74, the second parallel branch 75, and the third parallel branch 76, and the first parallel branch 74, the second parallel branch 75, and the third parallel branch 76 are connected to a negative electrode of the power supply 71. The first parallel branch 74 includes a first manual switch 741, a green indicator light 742, and a normally closed contact 743 of the contactor, and the first manual switch 741, the green indicator light 742, and the normally closed contact 743 of the contactor are connected in series. The second parallel branch 75 comprises a contactor 751, the switch formed by the first electrode bar 5 and the second electrode bar 6 is arranged in the second parallel branch 75, and the switch formed by the first electrode bar 5 and the second electrode bar 6 is connected in series with the contactor 751. The third parallel branch 76 includes a switching power supply 761, a red indicator 762, a buzzer 763, and a normally open contact 764 of the contactor, the positive electrode of the power supply 71 is connected to the power input terminal of the switching power supply 761 through the normally open contact 764 of the contactor and the negative electrode of the power supply 71, respectively, and the red indicator 762 and the buzzer 763 are connected to the power output terminal of the switching power supply 761. The switch formed by the first electrode bar 5 and the second electrode bar 6 is Q2 in fig. 3 in the protection circuit 7, and functions as a switch.

The working principle of the protection circuit 7 is as follows: when the contactor is normally used, the main switch 72 and the first manual switch 741 are closed, the first parallel branch 74 is connected, the green indicator lamp 742 is turned on to indicate that the contactor is in a normal working state at present, once molten steel leakage occurs, the first electrode rod 5 and the second electrode rod 6 are conducted, namely Q2 is closed, the contactor 751 is electrified to work, the normally closed contact 743 of the contactor is opened, the first parallel branch 74 is disconnected, and the green indicator lamp 742 is turned off; meanwhile, a normally open contact 764 of the contactor is closed, the third parallel branch 76 is communicated, the red indicator light 762 is turned on, the buzzer 763 sounds, and a steel leakage alarm is given.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications can be made without departing from the principles of the present invention, and these modifications should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a bleed-out protection device of reputation electric alarm which characterized in that: comprises a firebrick layer (1), a steel wire mesh (2), cement (3), a cement layer (4), a first electrode rod (5), a second electrode rod (6) and a protective circuit (7), wherein the cement layer (4) is poured into a cylindrical shape and is arranged in the ground, the firebrick layer (1) is arranged in the cement layer (4), the steel wire mesh (2) and the cement (3) are arranged between the firebrick layer (1) and the cement layer (4), the firebrick layer (1), the steel wire mesh (2), the cement (3) and the cement layer (4) are sequentially arranged from inside to outside, a cavity (8) is arranged between the cement layer (3) and the cement layer (4), cooling water is arranged in the cavity (8), molten steel can be filled in the firebrick layer (1), one end of the first electrode rod (5) is arranged in the molten steel in the firebrick layer (1), and the other end of the first electrode rod (5) is connected with the protective circuit (7) through an electric wire, one end of the second electrode rod (6) is connected with the steel wire mesh (2), the other end of the second electrode rod (6) is connected with the protection circuit (7) through an electric wire, and the first electrode rod (5) and the second electrode rod (6) are respectively connected with the two poles of the protection circuit (7).

2. The steel leakage protection device with the acoustic, optical and electric alarm function according to claim 1, wherein: protection circuit (7) include power (71), total switch (72), fuse (73), first parallel branch (74), second parallel branch (75) and third parallel branch (76), the one end of total switch (72) is connected with the positive pole of power (71) to the other end and the fuse (73) of total switch (72) are connected, fuse (73) are connected with first parallel branch (74), second parallel branch (75) and third parallel branch (76), and first parallel branch (74), second parallel branch (75) and third parallel branch (76) are connected with the negative pole of power (71).

3. The steel leakage protection device with the acoustic, optical and electric alarm function according to claim 2, wherein: the first parallel branch (74) comprises a first manual switch (741), a green indicator light (742) and a normally closed contact (743) of a contactor, and the first manual switch (741), the green indicator light (742) and the normally closed contact (743) of the contactor are connected in series.

4. The steel leakage protection device with the acoustic, optical and electric alarm function according to claim 2, wherein: the second parallel branch (75) comprises a contactor (751), a switch formed by the first electrode rod (5) and the second electrode rod (6) is arranged in the second parallel branch (75), and the switch formed by the first electrode rod (5) and the second electrode rod (6) is connected with the contactor (751) in series.

5. The steel leakage protection device with the acoustic, optical and electric alarm function according to claim 2, wherein: the third parallel branch (76) comprises a switch power supply (761), a red indicator light (762), a buzzer (763) and a normally open contact (764) of the contactor, the positive pole of the power supply (71) is connected to the power input end of the switch power supply (761) through the normally open contact (764) of the contactor and the negative pole of the power supply (71), and the red indicator light (762) and the buzzer (763) are connected with the power output end of the switch power supply (761).

6. The steel leakage protection device with the acoustic, optical and electric alarm function according to claim 1, wherein: the upper end cover of firebrick layer (1) and cement layer (4) is equipped with a set of apron (9), be equipped with first through-hole (10) on apron (9).

7. The steel leakage protection device with the acoustic, optical and electric alarm function according to claim 1, wherein: and a cooling water inlet pipe (11) and a cooling water outlet pipe (12) are arranged in the cavity (8), and the cooling water inlet pipe (11) and the cooling water outlet pipe (12) are both in contact with cooling water in the cavity (8).

8. The steel leakage protection device with the acoustic, optical and electric alarm function according to claim 6, wherein: the cover plate (9) is provided with a molten steel pouring opening (13), and the section of the molten steel pouring opening (13) is trapezoidal.

9. The steel leakage protection device with the acoustic, optical and electric alarm function according to claim 8, wherein: the bottom surface of the inner wall of the molten steel pouring opening (13) is an inclined surface (14), and the inclined surface (14) inclines towards the middle position of the refractory brick layer (1).