CN110340339B - Warning device, molten iron tank ultrahigh warning system and early warning method - Google Patents

Warning device, molten iron tank ultrahigh warning system and early warning method Download PDF

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Publication number
CN110340339B
CN110340339B CN201910715963.2A CN201910715963A CN110340339B CN 110340339 B CN110340339 B CN 110340339B CN 201910715963 A CN201910715963 A CN 201910715963A CN 110340339 B CN110340339 B CN 110340339B
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China
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swinging
piece
elastic
supporting seat
seat
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CN110340339A (en
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曹启坤
周邦连
叶际生
张柏文
李名伟
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SGIS Songshan Co Ltd
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SGIS Songshan Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D46/00—Controlling, supervising, not restricted to casting covered by a single main group, e.g. for safety reasons
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B5/00—Making pig-iron in the blast furnace
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B7/00—Blast furnaces
    • C21B7/24—Test rods or other checking devices

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Emergency Alarm Devices (AREA)

Abstract

The application provides a warning device, a molten iron tank superelevation warning system and a warning method, and relates to the technical field of blast furnace molten iron tank operation monitoring. The molten iron tank ultrahigh warning system comprises a warning device, a blast furnace and a conveying line passing through the lower part of the blast furnace, and a heat insulation plate is installed at the bottom of the blast furnace. The warning device comprises a cross beam, two switches, an alarm, a supporting seat, a swinging piece, an elastic mechanism and a first elastic piece; the beam is arranged on a furnace platform of the blast furnace; the alarm is electrically connected with the switch; the supporting seat is connected with the cross beam, and the two switches are respectively arranged on two opposite sides of the supporting seat. The top end of the swinging piece is rotatably connected with the supporting seat; the elastic mechanism is arranged on the swinging piece and can elastically abut against the supporting seat; the swinging piece is provided with a first position and a second position, the first position is that the elastic mechanism abuts against the bottom surface of the supporting seat, the second position is that the elastic mechanism abuts against the side surface of the supporting seat facing one of the switches, and the swinging piece touches and starts the switch. Which can give an alarm when the ladle nozzle of the hot-metal ladle is over-high.

Description

Warning device, molten iron tank ultrahigh warning system and early warning method
Technical Field
The application relates to the technical field of blast furnace hot metal ladle operation monitoring, in particular to a warning device, a hot metal ladle ultrahigh warning system and a warning method.
Background
The design of the hot metal vehicle and the hot metal tank is designed according to the height of a railway line weighing platform and a blast furnace platform under a blast furnace. When the hot metal bottle is used for loading and transporting hot metal, the splashing accumulation of the hot metal slag causes the slag bonding ultrahigh of the ladle nozzle of the hot metal bottle, and the existing ladle waste steel adding mode can also cause the phenomenon that the slag bonding ultrahigh of the ladle nozzle of the hot metal bottle, when the slag bonding and the slag bonding ultrahigh of the ladle nozzle of the hot metal bottle are carried out, a hot metal vehicle enters a blast furnace to operate, the ultrahigh of the ladle nozzle of the hot metal bottle can cause scraping and touching a lower heat insulation plate of a furnace platform, and the phenomenon that the heat insulation plate falls off can be caused in serious cases.
Disclosure of Invention
An object of the embodiment of the application is to provide a warning device, a molten iron tank overheight warning system and a warning method, which can give an alarm when a ladle nozzle of a molten iron tank is overheight.
The embodiment of the application is realized as follows:
in a first aspect, the embodiment of the application provides a molten iron tank superelevation warning system, which comprises a warning device, a blast furnace and a conveying line passing through the lower part of the blast furnace, wherein a heat insulation plate is installed at the bottom of the blast furnace.
The warning device comprises a cross beam, two switches, an alarm, a supporting seat, a swinging piece, an elastic mechanism and a first elastic piece; the beam is arranged on a furnace platform of the blast furnace; the two switches are both arranged on the cross beam; the alarm is electrically connected with the switch; the supporting seat is connected with the cross beam, and the two switches are respectively arranged on two opposite sides of the supporting seat.
The swinging piece is arranged above the conveying line, and the top end of the swinging piece is rotatably connected with the supporting seat; the elastic mechanism is arranged on the swinging piece and can elastically abut against the supporting seat; the swinging piece is provided with a first position and a second position, the first position is that the elastic mechanism abuts against the bottom surface of the supporting seat, the second position is that the elastic mechanism abuts against the side surface of the supporting seat facing one of the switches, and the swinging piece touches and starts the switch; in the first position, the bottom end of the oscillating member is flush with or closer to the conveyor line than the heat shield of the blast furnace.
One end of the first elastic piece is connected with the swinging piece, the other end of the first elastic piece is connected with the cross beam or the supporting seat, and the stretching amount of the first elastic piece at the first position is larger than that of the first elastic piece at the second position; the first resilient member is configured to provide tension to the oscillating member and to cause the oscillating member to have a tendency to move from the first position to the second position.
In the implementation process, the hot metal car carries the hot metal ladle and can be conveyed on the conveying line, and the cross beam provides the installation position for the supporting seat and the switch. The swinging piece is provided with a first position and a second position, and when the swinging piece is arranged at the first position, the top end of the swinging piece is rotatably connected with the supporting seat, and the elastic mechanism is abutted against the bottom surface of the supporting seat, so that the elastic mechanism and the supporting seat have interaction force, and the swinging piece can be kept static due to stress balance when the swinging piece is arranged at the first position. Because the oscillating piece sets up in the top of transfer chain, and when the primary importance, the bottom of oscillating piece flushes with the heat insulating board of blast furnace or is closer to the transfer chain than the heat insulating board, means if the bottom of oscillating piece is touched in hot metal ladle package mouth on the hot metal car, can make the oscillating piece atress balance at the primary importance broken. Because the stretching amount of the first elastic piece at the first position is larger than that of the first elastic piece at the second position, when the stress balance of the swinging piece is broken, under the action of the bias tension of the first elastic piece, the swinging piece moves from the first position to the second position, and the swinging piece touches and starts the switch to enable the alarm to give an alarm. That is to say, hot metal bottle superelevation warning system can send out the police dispatch newspaper when hot metal bottle package mouth superelevation to can remind the staff to handle hot metal bottle package mouth, avoid causing the harm to the heat insulating board of blast furnace bottom.
In a possible embodiment, the elastic mechanism includes a second elastic member, and a first abutting seat and a second abutting seat sequentially arranged along an axial direction of the oscillating member, the first abutting seat is movably connected to the oscillating member and can move along the axial direction of the oscillating member, the second abutting seat is fixed to the oscillating member, the second elastic member is installed between the first abutting seat and the second abutting seat in a compressed manner, and the second elastic member acts on the first abutting seat to enable the first abutting seat to abut against the supporting seat.
In the implementation process, because the second elastic element is in a compressed state, and the second abutting seat is fixed to the swinging element, the first abutting seat is movably connected to the swinging element and can move along the axial direction of the swinging element, the second elastic element can generate acting force on the first abutting seat to enable the first abutting seat to abut against the supporting seat, so that the swinging element is kept in a balanced state at the first position.
In a possible embodiment, the support base comprises a groove through the bottom surface of the support base and the side surfaces facing the two switches and two support walls separated by the groove, a connecting shaft being arranged between the two support walls, and the top end of the oscillating element extending into the groove between the two support walls and being rotatably connected to the connecting shaft.
In the implementation process, the top end of the swinging piece extends into the groove between the two supporting walls and is rotatably connected with the connecting shaft, and the two supporting arms can form a certain limiting effect on the top end of the swinging piece, so that the swinging piece is more stable when moving from the first position to the second position.
In a possible implementation scheme, the warning device further comprises a shaft sleeve, the shaft sleeve is movably sleeved on the connecting shaft and arranged between the two supporting walls, and the top end of the swinging piece is connected with the shaft sleeve.
In the implementation process, the top end of the swinging piece is connected with the shaft sleeve, the shaft sleeve is movably sleeved on the connecting shaft, when the swinging piece moves from the first position to the second position, the top end of the swinging piece rotates around the axis of the connecting shaft, the connecting shaft limits the moving range of the shaft sleeve and also limits the moving path of the top end of the swinging piece, and therefore the swinging piece is more stable in the moving process.
In a possible embodiment, the connection point of the first elastic element and the cross beam or the supporting seat is a first connection point, the connection point of the first elastic element and the swinging element is a second connection point, in the first position, the first connection point, the second connection point and a point on the axial lead of the connecting shaft are arranged in a collinear manner, and the connecting shaft is arranged between the first connection point and the second connection point.
In the above implementation, in the first position, since the first connecting point, the second connecting point, and one point on the axial line of the connecting shaft are arranged in a collinear manner, the balanced state of the swinging member can be better maintained. When the connecting shaft is arranged, the connecting shaft is arranged between the first connecting point and the second connecting point, so that the first elastic piece is contracted when moving from the first position to the second position, and the swinging piece can move towards the side surface of the supporting seat facing one switch.
In a possible embodiment, the bottom surface of the support and the side surface of the support facing the two switches are both planar, the bottom surface and the side surface being smoothly transitioned by means of a circular arc.
In the implementation process, the bottom surface of the supporting seat is connected with the side surface facing the two switches through the circular arc to enable the supporting seat to be in smooth transition. The bottom surface of the supporting seat is set to be a plane, and the swinging piece can be more easily kept in a balanced state when in the first position.
In a possible implementation scheme, the molten iron tank ultrahigh warning system further comprises limiting parts, the limiting parts are respectively arranged on one sides of the two switches, the limiting parts are connected with the cross beam, and when the swinging part is located at the second position, the limiting parts are in contact with the swinging part or a preset gap is reserved for limiting the maximum swinging angle of the swinging part.
In the implementation process, the limiting part can limit the maximum swing angle of the swing part, and when the swing part contacts the switch, the swing angle of the swing part can be limited under the action of the limiting part, so that the switch damage caused by overlarge acting force of the swing part on the switch is avoided.
In a possible embodiment, a chain is connected to the oscillating piece.
In the above implementation, when the swinging member is in the second position, in order to restore the swinging member to the first position, the swinging member may be restored to the first position by moving the swinging member to the bottom surface of the support base along the side surface of the support base facing one of the switches by pulling the chain rope.
In a second aspect, an embodiment of the present application provides a warning device, which includes a beam, two switches, an alarm, a support seat, a swinging member, an elastic mechanism, and a first elastic member; the two switches are both arranged on the cross beam; the alarm is electrically connected with the switch; the supporting seat is connected with the cross beam, and the two switches are respectively arranged on two opposite sides of the supporting seat.
The top end of the swinging piece is rotatably connected with the supporting seat; the elastic mechanism is arranged on the swinging piece and can elastically abut against the supporting seat; the swinging piece is provided with a first position and a second position, the first position is that the elastic mechanism abuts against the bottom surface of the supporting seat, the second position is that the elastic mechanism abuts against the side surface of the supporting seat facing one of the switches, and the swinging piece touches and starts the switch.
One end of the first elastic piece is connected with the swinging piece, the other end of the first elastic piece is connected with the cross beam or the supporting seat, and the stretching amount of the first elastic piece at the first position is larger than that of the first elastic piece at the second position; the first resilient member is configured to provide tension to the oscillating member and to cause the oscillating member to have a tendency to move from the first position to the second position.
In the implementation process, the beam provides a mounting position for the supporting seat and the switch. The swinging piece is provided with a first position and a second position, and when the swinging piece is at the first position, the top end of the swinging piece is rotatably connected with the supporting seat, and the elastic mechanism is abutted against the bottom surface of the supporting seat, so that the elastic mechanism and the supporting seat have interaction force, and the swinging piece is kept static due to stress balance when the swinging piece is at the first position. When the bottom end of the swinging piece is acted by force, the force balance of the swinging piece in the first position is broken. Because the stretching amount of the first elastic piece at the first position is larger than that of the first elastic piece at the second position, when the stress balance of the swinging piece is broken, under the action of the bias tension of the first elastic piece, the swinging piece moves from the first position to the second position, and the swinging piece touches and starts the switch to enable the alarm to give an alarm.
In a possible embodiment, the elastic mechanism includes a second elastic member, and a first abutting seat and a second abutting seat sequentially arranged along an axial direction of the oscillating member, the first abutting seat is movably connected to the oscillating member and can move along the axial direction of the oscillating member, the second abutting seat is fixed to the oscillating member, the second elastic member is installed between the first abutting seat and the second abutting seat in a compressed manner, and the second elastic member acts on the first abutting seat to enable the first abutting seat to abut against the supporting seat.
In the implementation process, because the second elastic element is in a compressed state, and the second abutting seat is fixed to the swinging element, the first abutting seat is movably connected to the swinging element and can move along the axial direction of the swinging element, the second elastic element can generate acting force on the first abutting seat to enable the first abutting seat to abut against the supporting seat, so that the swinging element is kept in a balanced state at the first position.
In a possible embodiment, the support base comprises a groove through the bottom surface of the support base and the side surfaces facing the two switches and two support walls separated by the groove, a connecting shaft being arranged between the two support walls, and the top end of the oscillating element extending into the groove between the two support walls and being rotatably connected to the connecting shaft.
In the implementation process, the top end of the swinging piece extends into the groove between the two supporting walls and is rotatably connected with the connecting shaft, and the two supporting arms can form a certain limiting effect on the top end of the swinging piece, so that the swinging piece is more stable when moving from the first position to the second position.
In a possible implementation scheme, the warning device further comprises a shaft sleeve, the shaft sleeve is movably sleeved on the connecting shaft and arranged between the two supporting walls, and the top end of the swinging piece is connected with the shaft sleeve.
In the implementation process, the top end of the swinging piece is connected with the shaft sleeve, the shaft sleeve is movably sleeved on the connecting shaft, when the swinging piece moves from the first position to the second position, the top end of the swinging piece rotates around the axis of the connecting shaft, the connecting shaft limits the moving range of the shaft sleeve and also limits the moving path of the top end of the swinging piece, and therefore the swinging piece is more stable in the moving process.
In a possible embodiment, the connection point of the first elastic element and the cross beam or the supporting seat is a first connection point, the connection point of the first elastic element and the swinging element is a second connection point, in the first position, the first connection point, the second connection point and a point on the axial lead of the connecting shaft are arranged in a collinear manner, and the connecting shaft is arranged between the first connection point and the second connection point.
In the above implementation, in the first position, since the first connecting point, the second connecting point, and one point on the axial line of the connecting shaft are arranged in a collinear manner, the balanced state of the swinging member can be better maintained. When the connecting shaft is arranged, the connecting shaft is arranged between the first connecting point and the second connecting point, so that the first elastic piece is contracted when moving from the first position to the second position, and the swinging piece can move towards the side surface of the supporting seat facing one switch.
In a possible embodiment, the bottom surface of the support and the side surface of the support facing the two switches are both planar, the bottom surface and the side surface being smoothly transitioned by means of a circular arc.
In the implementation process, the bottom surface of the supporting seat is connected with the side surface facing the two switches through the circular arc to enable the supporting seat to be in smooth transition. The bottom surface of the supporting seat is set to be a plane, and the swinging piece can be more easily kept in a balanced state when in the first position.
In a possible implementation scheme, the molten iron tank ultrahigh warning system further comprises limiting parts, the limiting parts are respectively arranged on one sides of the two switches, the limiting parts are connected with the cross beam, and when the swinging part is located at the second position, the limiting parts are in contact with the swinging part or a preset gap is reserved for limiting the maximum swinging angle of the swinging part.
In the implementation process, the limiting part can limit the maximum swing angle of the swing part, and when the swing part contacts the switch, the swing angle of the swing part can be limited under the action of the limiting part, so that the switch damage caused by overlarge acting force of the swing part on the switch is avoided.
In a possible embodiment, a chain is connected to the oscillating piece.
In the above implementation, when the swinging member is in the second position, in order to restore the swinging member to the first position, the swinging member may be restored to the first position by moving the swinging member to the bottom surface of the support base along the side surface of the support base facing one of the switches by pulling the chain rope.
In a third aspect, an embodiment of the present application provides a molten iron tank superelevation warning method, which is performed by using the molten iron tank superelevation warning system in the embodiment of the first aspect, and includes:
when a hot metal tank of a molten iron vehicle running on the conveying line touches the swinging piece, the stress balance state of the swinging piece at the first position is broken, and under the action of the first elastic piece, the swinging piece moves towards the side surface of the supporting seat facing one of the switches, so that the swinging piece touches and starts the switch to enable the alarm to give an alarm.
In the implementation process, after the hot metal tank of the molten iron vehicle running on the conveying line touches the swinging piece, the swinging piece can move from the first position to the second position to enable the swinging piece to touch and start the switch to enable the alarm to give an alarm so as to remind that the hot metal tank is ultrahigh.
The beneficial effects of the embodiment of the application at least comprise:
the swinging piece is kept static due to the stress balance when in the first position. When the bottom end of the swinging piece is acted by force, the force balance of the swinging piece in the first position is broken. Because the stretching amount of the first elastic piece at the first position is greater than that of the second elastic piece, when the stress balance of the swinging piece is broken, the swinging piece moves from the first position to the second position under the action of the bias tension of the first elastic piece, and the swinging piece touches and starts the switch to enable the alarm to give an alarm for reminding a worker to process the next step.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
Fig. 1 is a schematic structural diagram of a warning device when a swinging member is in a first position according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of a warning device at another viewing angle according to an embodiment of the present disclosure;
FIG. 3 is a schematic view of the structure of FIG. 1 from another perspective;
FIG. 4 is a schematic structural diagram of a warning device of the swing member in a second position according to an embodiment of the present disclosure;
fig. 5 is a schematic structural diagram of a cross beam according to an embodiment of the present application.
Icon: 100-a warning device; 110-a beam; 111-mounting a nut; 120-a switch; 130-an alarm; 140-a resilient mechanism; 141-a first holding seat; 142-a second holding seat; 144-a second elastic member; 145-a first connection; 150-a support base; 151-a first surface; 152-a second surface; 153-a third surface; 154-a support wall; 155-groove; 156-a connecting shaft; 157-shaft sleeve; 158-mounting plate; 159 — a second connection; 160-a first elastic member; 171-a first connection point; 172-second connection point; 181-a stopper; 182-a chain rope; 184-a touch plate; 190-a pendulum.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the description of the present application, it should be noted that the terms "below," "inside," "outside," and the like refer to orientations or positional relationships based on those shown in the drawings or orientations or positional relationships that are conventionally used to place products of the application, and are used for convenience of description and simplicity of description, but do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
In the description of the present application, it is further noted that, unless expressly stated or limited otherwise, the terms "disposed," "mounted," and "connected" are to be construed broadly, e.g., as meaning 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 application can be understood in a specific case by those of ordinary skill in the art.
The embodiment of the application provides a warning device 100, a molten iron tank overheight warning system and a warning method, which can give an alarm when a ladle nozzle of a molten iron tank is overheight.
The warning device 100, the molten iron tank superelevation warning system and the warning method will be described with reference to the drawings.
Referring to fig. 1 to 3, fig. 1 and 2 respectively show a schematic structural view of the warning device 100 in a first viewing angle and a second viewing angle, and fig. 3 shows a schematic structural view in another viewing angle of fig. 1.
The warning device 100 includes a beam 110, two switches 120, an alarm 130, a resilient mechanism 140, a support base 150, a first resilient member 160, and a swinging member 190. Wherein, crossbeam 110 provides the mounted position for supporting seat 150 and switch 120, and supporting seat 150 is connected with crossbeam 110, and two switches 120 are all installed in crossbeam 110, and two switches 120 set up respectively in the relative both sides of supporting seat 150, and alarm 130 is connected with switch 120 electricity. Illustratively, the support pedestal 150 is coupled to the beam 110 via a mounting plate 158, it being understood that the support pedestal 150 may also be coupled directly to the beam 110. Illustratively, the alarm 130 is disposed on the beam 110 and electrically connected to the switch 120 via a cable, and when the switch 120 is activated, the alarm 130 will be alarmed.
The support base 150 includes a bottom surface and two side surfaces facing the two switches 120. The bottom surface of the supporting base 150 is a second surface 152 (see fig. 4), and two side surfaces of the supporting base 150 facing the two switches 120 are a first surface 151 and a third surface 153, respectively, that is, the first surface 151 faces one of the switches 120, and the third surface 153 faces the other switch 120.
Illustratively, the first surface 151, the second surface 152, and the third surface 153 are all planar surfaces, and the first surface 151 and the third surface 153 smoothly transition with the second surface 152 through a circular arc. The first surface 151, the second surface 152 and the third surface 153 can be smoothly transited by joining the first surface 151, the third surface 153 and the second surface 152 by a circular arc.
Illustratively, the first surface 151 and the third surface 153 are both arc surfaces, the second surface 152 is a plane, and the arc surfaces of the first surface 151 and the third surface 153 are both smoothly transited from the plane of the second surface 152.
The top end of the swinging member 190 is rotatably connected to the supporting base 150, and the elastic mechanism 140 is mounted on the swinging member 190 and can elastically abut against the supporting base 150. The swinging member 190 has a first position and a second position, the first position is that the elastic mechanism 140 is abutted against the second surface 152 of the supporting seat 150. In the second position, the resilient mechanism 140 abuts against the first surface 151 or the third surface 153 of the supporting base 150, and the swinging member 190 touches and activates the switch 120. When the second surface 152 is disposed as a flat surface, the oscillating member 190 can more easily maintain a balanced state when in the first position.
One end of the first elastic member 160 is connected to the swing member 190, and the other end of the first elastic member 160 is connected to the cross beam 110 or the support base 150. The connection point of the first elastic member 160 and the cross beam 110 or the support base 150 is a first connection point 171, and the connection point of the first elastic member 160 and the swinging member 190 is a second connection point 172 (see fig. 1). Alternatively, the swinging member 190 is provided with a first connecting portion 145, the cross beam 110 or the support base 150 is provided with a second connecting portion 159, one end of the first elastic member 160 is connected to the first connecting portion 145, and the other end of the first elastic member 160 is connected to the second connecting portion 159 (see fig. 3). The first connecting portion 145 protrudes from the surface of the beam 110 or the support base 150, and the second connecting portion 159 protrudes from the surface of the swinging member 190. By the protruding arrangement of the two connection points of the first elastic member 160, a gap is formed between the first elastic member 160 and the supporting seat 150 and between the first elastic member 160 and the swinging member 190, so that the first elastic member 160 is not obstructed by the supporting seat 150 and the swinging member 190 when the swinging member 190 swings between the first position and the second position.
The amount of stretch of the first elastic member 160 in the first position is greater than the amount of stretch of the first elastic member 160 in the second position; the first elastic member 160 is configured to provide a pulling force to the oscillating member 190 and to cause the oscillating member 190 to have a tendency to move from the first position to the second position. Illustratively, the first elastic member 160 is a spring or any structure having elasticity and capable of being switched between a stretched state and a contracted state.
When the swing member 190 is at the first position, the top end of the swing member 190 is rotatably connected to the supporting seat 150, and the elastic mechanism 140 abuts against the second surface 152 of the supporting seat 150, so that the elastic mechanism 140 and the supporting seat 150 have an interaction force, and the swing member 190 is kept stationary due to the force balance when the swing member is at the first position. When the bottom end of the swinging member 190 is subjected to a force, the balance of the force applied to the swinging member 190 in the first position is broken. Since the stretching amount of the first elastic member 160 in the first position is greater than that of the first elastic member 160 in the second position, when the force balance of the swinging member 190 is broken, the swinging member 190 moves from the first position to the second position under the bias of the first elastic member 160, and the swinging member 190 touches and activates the switch 120 to alarm the alarm 130. The alarm 130 may alert the operator to proceed to further processing. In the process, the top end of the swinging member 190 rotates relative to the supporting seat 150, and the elastic mechanism 140 abuts against the supporting seat 150 and moves synchronously with the swinging member 190.
Illustratively, the lower portion of the swinging member 190 is provided with a touch plate 184 (see fig. 3), and the touch plate 184 can touch and activate the switch 120 when in the second position. Illustratively, the switch 120 is optionally a micro-roller rocker arm stop, and when the oscillating member 190 touches the rocker arm of the micro-roller rocker arm stop, the alarm 130 can be activated, so that the alarm 130 gives an alarm. In addition, it should be noted that the type of the switch 120 is not specifically limited in the embodiment of the present application, as long as the switch 120 can be activated when the swinging member 190 touches the switch 120, and the alarm 130 can give an alarm.
Further, referring to fig. 1 and fig. 4, in order to avoid the switch 120 from being damaged by an excessively large swing angle of the swing member 190, the warning device 100 is optionally provided with a limiting member 181, the limiting member 181 is connected with the beam 110, and the limiting members 181 are respectively disposed on one side of the two switches 120, that is, one side of each switch 120 is provided with one limiting member 181. The limiting member 181 may be disposed between the switch 120 and the supporting base 150, or may be disposed outside the two switches 120. When the two stoppers 181 are disposed outside the two switches 120, the switches 120 are closer to the supporting base 150 than the stoppers 181. When the swinging member 190 is at the second position, the limiting member 181 contacts the swinging member 190 or leaves a predetermined gap for limiting the maximum swinging angle of the swinging member 190. By limiting the maximum swing angle of the swing member 190, damage to the switch 120 due to an excessive swing angle of the swing member 190 can be avoided. Illustratively, the preset gap is optionally 0.1-2 mm, 0.5-1 mm, 0.1-0.5 mm or 0.3-1.5 mm. It should be noted that the preset gap is only an example, as long as the preset gap can ensure that the swinging member 190 does not damage the switch 120.
Referring to fig. 1, fig. 3 and fig. 4, in a possible embodiment, the elastic mechanism 140 includes a second elastic member 144, a first abutting seat 141 and a second abutting seat 142 sequentially disposed along an axial direction of the swinging member 190, the first abutting seat 141 is movably connected to the swinging member 190 and can move along the axial direction of the swinging member 190, the second abutting seat 142 is fixed to the swinging member 190, the second elastic member 144 is compressively installed between the first abutting seat 141 and the second abutting seat 142, and the second elastic member 144 acts on the first abutting seat 141 to enable the first abutting seat 141 to abut against the supporting seat 150.
For example, the first abutting seat 141 is provided with a mounting hole, and the top end of the swinging member 190 penetrates through the mounting hole of the first abutting seat 141, so that the first abutting seat 141 is movably connected to one end of the swinging member 190 close to the supporting seat 150. In other embodiments, a limiting groove may be formed in an outer wall of the swinging member 190, the limiting groove is disposed along an axial direction of the swinging member 190, the first abutting seat 141 is provided with a limiting block matched with the limiting groove, and the limiting block is disposed in the limiting groove and can slide along the limiting groove.
A second elastic element 144 in a compressed state is disposed between the first abutting seat 141 and the second abutting seat 142, and the second elastic element 144 acts on the first abutting seat 141 so that the first abutting seat 141 can abut against the first surface 151, the second surface 152, or the third surface 153. Illustratively, the second elastic member 144 is a spring, and the spring is sleeved on the outer wall of the swinging member 190. Two ends of the spring can be connected to the first abutting seat 141 and the second abutting seat 142 respectively. It can be understood that the second elastic element 144 may also be a spring sheet in a compressed state, and two ends of the spring sheet are respectively connected to the first abutting seat 141 and the second abutting seat 142.
Since the second abutting seat 142 is fixed to the swinging member 190, the first abutting seat 141 can move axially relative to the swinging member 190, and when the second elastic member 144 in a compressed state is disposed between the first abutting seat 141 and the second abutting seat 142, the acting force of the second elastic member 144 acts on the first abutting seat 141 to enable the first abutting seat 141 to abut against the first surface 151, the second surface 152 or the third surface 153. In the first position, since the second elastic member 144 enables the first abutting seat 141 to abut against the second surface 152, the first abutting seat 141 and the second surface 152 have a certain friction force, and the state of the swinging member 190 can be changed only by colliding with the swinging member 190, so that the swinging member 190 is not easy to be operated by mistake.
In other embodiments, only the first abutting seat 141 may be provided without the second abutting seat 142, one end of the second elastic member 144 is directly connected to the swinging member 190, and the other end of the second elastic member 144 abuts against the first abutting seat 141.
Referring to fig. 3, in one possible embodiment, the support base 150 includes a groove 155 extending through the first surface 151, the second surface 152, and the third surface 153, and two support walls 154 separated by the groove 155. A connecting shaft 156 is provided between the two support walls 154, and the top end of the swinging member 190 extends into the groove 155 between the two support walls 154 and is rotatably connected to the connecting shaft 156.
That is, a groove 155 is formed between the two supporting walls 154, the top end of the swinging member 190 extends into the groove 155 formed between the two supporting walls 154 and is rotatably connected with the connecting shaft 156, and the first abutting seat 141 abuts against the first surface 151, the second surface 152 or the third surface 153. The two support walls 154 can limit the top end of the swinging member 190, so that the swinging member 190 is more stable when moving from the first position to the second position.
Illustratively, each supporting wall 154 is provided with a corresponding assembling hole, the connecting shaft 156 is fixedly inserted into the assembling hole of each supporting wall 154, the warning device 100 is further provided with a shaft sleeve 157, the shaft sleeve 157 is movably sleeved on the connecting shaft 156, the shaft sleeve 157 is arranged between the two supporting walls 154, and the top end of the oscillating piece 190 is connected with the shaft sleeve 157. It is understood that the support walls 154 may not be provided with the fitting holes, as long as both ends of the connecting shaft 156 are connected to the two support walls 154, respectively.
Because the top end of the swinging member 190 is connected with the shaft sleeve 157, and the shaft sleeve 157 is movably sleeved on the connecting shaft 156, when the swinging member 190 moves from the first position to the second position, the top end of the swinging member 190 rotates around the axis of the connecting shaft 156, the connecting shaft 156 defines the moving range of the shaft sleeve 157, and also defines the moving path of the top end of the swinging member 190, so that the swinging member 190 is more stable in the moving process.
In other embodiments, a sliding groove may be formed along the circumferential direction of the connecting shaft 156, a pulley matched with the sliding groove is disposed at the top end of the swinging member 190, the pulley is limited in the sliding groove and can move in the sliding groove, and the top end of the swinging member 190 and the connecting shaft 156 can be also rotatably connected.
It should be noted that the support base 150 can also be a unitary structure without the slot 155 extending through the first surface 151, the second surface 152, and the third surface 153. Illustratively, in this arrangement, the support base 150 is provided with a rotation shaft which is protruded with respect to the surface of the support base 150, and the swing member 190 is rotatably coupled with the rotation shaft. For a specific rotatable connection manner, please refer to the connection manner of the swinging member 190 and the connection shaft 156, which is not described herein again.
Illustratively, referring to fig. 1, in the first position, the first connecting point 171, the second connecting point 172 and a point on the axis of the connecting shaft 156 are arranged in a collinear manner, and the connecting shaft 156 is arranged between the first connecting point 171 and the second connecting point 172.
In the first position, since the first connecting point 171, the second connecting point 172 and a point on the axis of the connecting shaft 156 are arranged in line, meaning that the first elastic member 160 passes through a point on the axis of the connecting shaft 156 and the first elastic member 160 maintains a straight state, the balanced state of the swinging member 190 can be better maintained. In the case where the connection shaft 156 is provided, the connection shaft 156 is provided between the first connection point 171 and the second connection point 172, and the first elastic member 160 is contracted when moving from the first position to the second position, so that the swinging member 190 can be automatically biased to move toward the first surface 151 or the third surface 153.
It is understood that the line connecting the first connecting point 171 and the second connecting point 172 may not pass through a point on the axis of the connecting shaft 156, as long as the swinging member 190 can maintain a stationary state in the first position.
In addition, in order to conveniently restore the swinging member 190 from the second position to the first position, the present embodiment exemplarily connects the chain rope 182 (see fig. 3) to the swinging member 190, and the chain rope 182 does not form an obstacle to the movement of the swinging member 190 when the swinging member 190 moves from the first position to the second position. When the swinging member 190 is in the second position, pulling the chain 182 causes the top end of the swinging member 190 to move along the first surface 151 or the third surface 153 to the second surface 152, which may cause the swinging member 190 to resume the first position for the next use.
The embodiment of the application also provides a molten iron tank superelevation warning system, which comprises the warning device 100, a blast furnace and a conveying line passing through the lower part of the blast furnace. The molten iron vehicle carries the molten iron tank and can be conveyed through the conveyor line.
Wherein, the blast furnace below is provided with the support, and the support supports the blast furnace and forms accommodation space below the blast furnace, and the transfer chain sets up in the blast furnace below. The bottom of the blast furnace is provided with a heat insulation plate, namely the outer wall of the blast furnace above the conveying line is provided with the heat insulation plate.
The cross beam 110 is mounted on the furnace floor of the blast furnace, and the swing member 190 of the warning device 100 is disposed above the conveyor line. Illustratively, the oscillating member 190 is a straight rod-like structure. When the oscillating member 190 is in the first position, the bottom end of the oscillating member 190 is flush with or closer to the conveyor line than the heat shield of the blast furnace. The cross beam 110 is connected to the furnace floor of the blast furnace, for example, by means of mounting nuts 111 (see fig. 5), and the warning device 100 is mounted close to the entrance of the conveyor line in the receiving space. Illustratively, the pendulum 190 is in a vertical position in the first position.
When the hot metal car is transported on the transport line with the hot metal ladle carried thereon, if the ladle lip of the hot metal car touches the swinging member 190, the force balance of the swinging member 190 in the first position is broken. Under the effect of the bias tension of the first elastic element 160, the swinging element 190 moves from the first position to the second position, the swinging element 190 touches and starts the switch 120 to enable the alarm 130 to give an alarm, so that a worker is reminded to process the molten iron ladle nozzle, and the damage to the heat insulation plate at the bottom of the blast furnace caused by the ultrahigh molten iron ladle nozzle is avoided. It should be noted that, since the bottom end of the swinging member 190 is flush with the heat insulation plate of the blast furnace or closer to the conveying line than the heat insulation plate, if the ladle nozzle on the hot-metal car does not touch the bottom end of the swinging member 190, it means that the ladle nozzle does not touch the heat insulation plate.
The embodiment also provides a molten iron tank superelevation warning method, which is implemented by using the molten iron tank superelevation warning system, and includes:
when the hot metal tank of the hot metal vehicle running on the conveying line touches the swinging member 190, the stress balance state of the swinging member 190 at the first position is broken, and under the action of the first elastic member 160, the swinging member 190 moves towards the side surface of the supporting seat 150 facing one of the switches 120, so that the swinging member 190 touches and activates the switch 120 to make the alarm 130 give an alarm.
When the alarm 130 gives an alarm, it is described that the ultrahigh molten iron ladle nozzle on the molten iron vehicle may touch the heat insulation plate, and then the worker can be reminded to process the molten iron ladle nozzle after the alarm is given out, so that the damage of the ultrahigh molten iron ladle nozzle on the heat insulation plate at the bottom of the blast furnace is avoided.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (15)

1. The warning system for the ultrahigh content of the molten iron tank comprises a blast furnace and a conveying line passing through the lower part of the blast furnace, wherein a heat insulation plate is arranged at the bottom of the blast furnace;
the warning device includes:
a cross beam mounted on a hearth of the blast furnace;
the two switches are mounted on the cross beam;
the alarm is electrically connected with the switch;
the supporting seat is connected with the cross beam, and the two switches are respectively arranged on two opposite sides of the supporting seat;
the swinging piece is arranged above the conveying line, and the top end of the swinging piece is rotatably connected with the supporting seat;
the elastic mechanism is arranged on the swinging piece and can elastically abut against the supporting seat; the swinging piece is provided with a first position and a second position, the first position is that the elastic mechanism abuts against the bottom surface of the supporting seat, the second position is that the elastic mechanism abuts against the side surface of the supporting seat facing one of the switches, and the swinging piece touches and starts the switch; in the first position, the bottom end of the swinging piece is flush with a heat insulation plate of the blast furnace or is closer to the conveying line than the heat insulation plate; and
one end of the first elastic piece is connected with the swinging piece, the other end of the first elastic piece is connected with the cross beam or the supporting seat, and the stretching amount of the first elastic piece at the first position is larger than that of the first elastic piece at the second position; the first resilient member is configured to provide a pulling force to the oscillating member and to cause the oscillating member to have a tendency to move from the first position to the second position;
the elastic mechanism comprises a second elastic piece, a first abutting seat and a second abutting seat, the first abutting seat and the second abutting seat are sequentially arranged along the axial direction of the swinging piece, the first abutting seat is movably connected to the swinging piece and can move along the axial direction of the swinging piece, the second abutting seat is fixed on the swinging piece, the second elastic piece is installed between the first abutting seat and the second abutting seat in a compression mode, and the second elastic piece acts on the first abutting seat to enable the first abutting seat to abut against the supporting seat.
2. The molten iron tank superelevation warning system of claim 1, wherein the supporting base includes a groove penetrating a bottom surface of the supporting base and facing the side surfaces of the two switches and two supporting walls separated by the groove, a connecting shaft is provided between the two supporting walls, and a top end of the swinging member extends into the groove between the two supporting walls and is rotatably connected with the connecting shaft.
3. The molten iron tank ultrahigh warning system according to claim 2, characterized in that the warning device further comprises a shaft sleeve, the shaft sleeve is movably sleeved on the connecting shaft, the shaft sleeve is arranged between the two supporting walls, and the top end of the swinging piece is connected with the shaft sleeve.
4. The molten iron tank ultrahigh warning system of claim 3 characterized in that the junction of the first elastic member and the cross beam or the supporting seat is a first junction, the junction of the first elastic member and the swinging member is a second junction, in the first position, the first junction, the second junction and a point on the axial lead of the connecting shaft are arranged in a collinear manner, and the connecting shaft is arranged between the first junction and the second junction.
5. The molten iron tank superelevation warning system according to any one of claims 1 to 4, wherein a bottom surface of the supporting base and the side surface of the supporting base facing the two switches are both flat surfaces, and the bottom surface and the side surface are smoothly transited through an arc.
6. The molten iron tank superelevation warning system of any one of claims 1 to 4, further comprising a limiting member, wherein the limiting member is connected to the cross beam, the limiting member is respectively disposed at one side of the two switches, and when the swinging member is at the second position, the limiting member is in contact with the swinging member or a preset gap is left for limiting a maximum swinging angle of the swinging member.
7. The molten iron tank superelevation warning system of any one of claims 1-4, wherein a chain rope is connected to the swinging member.
8. A warning device, comprising:
a cross beam;
the two switches are mounted on the cross beam;
the alarm is electrically connected with the switch;
the supporting seat is connected with the cross beam, and the two switches are respectively arranged on two opposite sides of the supporting seat;
the top end of the swinging piece is rotatably connected with the supporting seat;
the elastic mechanism is arranged on the swinging piece and can elastically abut against the supporting seat; the swinging piece is provided with a first position and a second position, the first position is that the elastic mechanism abuts against the bottom surface of the supporting seat, the second position is that the elastic mechanism abuts against the side surface of the supporting seat facing one of the switches, and the swinging piece touches and starts the switch; and
one end of the first elastic piece is connected with the swinging piece, the other end of the first elastic piece is connected with the cross beam or the supporting seat, and the stretching amount of the first elastic piece at the first position is larger than that of the first elastic piece at the second position; the first resilient member is configured to provide a pulling force to the oscillating member and to cause the oscillating member to have a tendency to move from the first position to the second position;
the elastic mechanism comprises a second elastic piece, a first abutting seat and a second abutting seat, the first abutting seat and the second abutting seat are sequentially arranged along the axial direction of the swinging piece, the first abutting seat is movably connected to the swinging piece and can move along the axial direction of the swinging piece, the second abutting seat is fixed on the swinging piece, the second elastic piece is installed between the first abutting seat and the second abutting seat in a compression mode, and the second elastic piece acts on the first abutting seat to enable the first abutting seat to abut against the supporting seat.
9. The warning device as claimed in claim 8, wherein the support base includes a groove extending through a bottom surface of the support base and facing the side surfaces of the two switches and two support walls separated by the groove, a connecting shaft being provided between the two support walls, and a top end of the oscillating member extending into the groove between the two support walls and being rotatably connected to the connecting shaft.
10. The warning device as claimed in claim 9, further comprising a bushing movably sleeved on the connecting shaft, the bushing being disposed between the two supporting walls, and a top end of the oscillating member being connected to the bushing.
11. The warning device as claimed in claim 10, wherein a joint between the first elastic member and the cross member or the support base is a first joint, a joint between the first elastic member and the swinging member is a second joint, and in the first position, the first joint, the second joint and a point on an axial line of the connecting shaft are arranged in a collinear manner, and the connecting shaft is arranged between the first joint and the second joint.
12. A warning device according to any one of claims 8 to 11 wherein the base of the support and the side of the support facing the two switches are both planar, the base and the side being smoothly transitioned through a circular arc.
13. The warning device as claimed in any one of claims 8 to 11, further comprising a limiting member, wherein the limiting member is connected to the cross beam, the limiting members are respectively disposed at one side of the two switches, and when the swinging member is located at the second position, the limiting member is in contact with the swinging member or a predetermined gap is left between the limiting member and the swinging member for limiting a maximum swinging angle of the swinging member.
14. A warning device as claimed in any one of claims 8 to 11 wherein a tether is attached to the oscillating member.
15. A molten iron tank excess height warning method, which is performed by using the molten iron tank excess height warning system according to any one of claims 1 to 7, and which comprises:
when a hot metal tank of a molten iron vehicle running on the conveying line touches the swinging piece, the stress balance state of the swinging piece at the first position is broken, and under the action of the first elastic piece, the swinging piece deviates to the side surface of the supporting seat facing one of the switches to move, so that the swinging piece touches and starts the switch to enable the alarm to give an alarm.
CN201910715963.2A 2019-08-05 2019-08-05 Warning device, molten iron tank ultrahigh warning system and early warning method Active CN110340339B (en)

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CN2062341U (en) * 1990-03-15 1990-09-19 梁孟文 Warner for self stop of pin stenter
CN2092752U (en) * 1991-04-05 1992-01-08 兰炳旺 Display and alarm device for pressure insufficiency or leak of automobile tyre
KR101184410B1 (en) * 2010-04-01 2012-09-24 김언주 Automatic monitoring system for ladle and hook
CN202323798U (en) * 2011-11-20 2012-07-11 襄樊学院 Culvert height restriction frame prewarning device
CN202701316U (en) * 2012-08-07 2013-01-30 新疆八一钢铁股份有限公司 Converter steel-ladle edge height measuring device
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