CN110340339A - Alarming device, hot-metal bottle superelevation warning system and method for early warning - Google Patents
Alarming device, hot-metal bottle superelevation warning system and method for early warning Download PDFInfo
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- CN110340339A CN110340339A CN201910715963.2A CN201910715963A CN110340339A CN 110340339 A CN110340339 A CN 110340339A CN 201910715963 A CN201910715963 A CN 201910715963A CN 110340339 A CN110340339 A CN 110340339A
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- swing component
- support base
- component
- swing
- hot
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Classifications
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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
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- 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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- 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 kind of alarming device, hot-metal bottle superelevation warning system and method for early warning, is related to blast furnace hot-metal bottle operation monitoring technology field.Hot-metal bottle superelevation warning system includes alarming device, blast furnace and passes through the pipeline below blast furnace, and blast furnace bottom is equipped with thermal insulation board.Alarming device includes crossbeam, two switches, alarm, support base, swing component, elastic mechanism and the first elastic component；Crossbeam is installed on the table of blast furnace；Alarm is electrically connected with switch；Support base is connect with crossbeam, and two switch the opposite sides for being respectively arranged at support base.The top of swing component is rotatably coupled with support base；Elastic mechanism is installed on swing component and can be flexibly supported on support base；Swing component has first position and the second position, and first position is the bottom surface that elastic mechanism is held in support base, and the second position is the side towards one of switch that elastic mechanism is held in support base, and swing component is touched and started switch.It can be sounded an alarm in hot-metal bottle packet mouth superelevation.
Description
Technical field
This application involves blast furnace hot-metal bottles to run monitoring technology field, in particular to a kind of alarming device, hot-metal bottle
Superelevation warning system and method for early warning.
Background technique
The design of molten iron vehicle and hot-metal bottle is set according to rail track weighting platform under blast furnace and the height of blast furnace table
Meter.For hot-metal bottle when shipping molten iron, the splashing accumulation of scum causes hot-metal bottle packet mouth slagging superelevation and existing iron packet to add
Steel scrap mode, when will also result in hot-metal bottle packet mouth knot steel scrap superelevation phenomenon, hot-metal bottle packet mouth slagging and knot steel scrap superelevation, hot-metal car
Enter blast furnace under operation when, hot-metal bottle packet mouth superelevation will cause thermal insulation board under scraping collision table, will will cause thermal insulation board when serious
Obscission.
Summary of the invention
The embodiment of the present application is designed to provide a kind of alarming device, hot-metal bottle superelevation warning system and the pre- police
Method can be sounded an alarm in hot-metal bottle packet mouth superelevation.
Embodiments herein is achieved in that
In a first aspect, the embodiment of the present application provides a kind of hot-metal bottle superelevation warning system, including alarming device, blast furnace and
By the pipeline below blast furnace, blast furnace bottom is equipped with thermal insulation board.
Alarming device includes crossbeam, two switches, alarm, support base, swing component, elastic mechanism and the first elasticity
Part；Crossbeam is installed on the table of blast furnace；Two switches are mounted on crossbeam；Alarm is electrically connected with switch；Support base and crossbeam
Connection, two switch the opposite sides for being respectively arranged at support base.
Swing component is set to the top of pipeline, and top and the support base of swing component are rotatably coupled；Elastic mechanism peace
Loaded on swing component and support base can be flexibly supported on；Swing component has first position and the second position, and first position is elasticity
Mechanism is held in the bottom surface of support base, and the second position is the side towards one of switch that elastic mechanism is held in support base
Face, and swing component is touched and is started switch；At first position, the bottom end of swing component flush with the thermal insulation board of blast furnace or than every
Hot plate is closer to pipeline.
One end of first elastic component is connect with swing component, and the other end of the first elastic component is connect with crossbeam or support base, the
Amount of tension of one elastic component in first position is greater than the first elastic component in the amount of tension of the second position；First elastic component is configured to
Pulling force is provided for swing component and makes swing component that there is the trend for moving to the second position from first position.
During above-mentioned realization, molten iron vehicle carries hot-metal bottle and can be conveyed in pipeline, and crossbeam is support base
Installation site is provided with switch.Swing component has first position and the second position, at first position, due to the top of swing component
It is rotatably connected with support base, and elastic mechanism is held in the bottom surface of support base and elastic mechanism and support base is made to have phase interaction
Firmly, then swing component at first position because stress balance be able to maintain it is static.Since swing component is set to the top of pipeline,
And at first position, the bottom end of swing component is flushed with the thermal insulation board of blast furnace or than thermal insulation board closer to pipeline, it is meant that
If the hot-metal bottle packet mouth on molten iron vehicle touches the bottom end of swing component, the swing component stress balance in first position can be made
It is broken.Due to the first elastic component first position amount of tension be greater than the first elastic component the second position amount of tension, then when
When swing component stress balance is broken, in the first elastic component under the action of biasing power, swing component moves to from first position
Two positions, swing component are touched and are started switch so that alarm sounds an alarm.In other words, the molten iron when hot-metal bottle packet mouth superelevation
Tank superelevation warning system can sound an alarm, and so as to remind staff to handle hot-metal bottle packet mouth, avoid to blast furnace
The thermal insulation board of bottom damages.
In a kind of possible embodiment, elastic mechanism include the second elastic component, along swing component axial direction successively
First be arranged supports seat and second supports seat, and first, which supports seat, is movably connected on swing component and can transport along the axial direction of swing component
Dynamic, second, which supports seat, is fixed on swing component, and the compression of the second elastic component, which is installed on first and supports seat and second, to be supported between seat, and second
Elastic component, which acts on first and supports seat and enable first to support seat, is held in support base.
During above-mentioned realization, since the second elastic component is in compressive state, and second supports seat and is fixed on swing component,
First, which supports seat, is movably connected on swing component and can be along the axial movement of swing component, then the second elastic component can be supported to first
Seat generates active force and first to support seat to be held in support base, so that swing component keeps equilibrium state in first position.
In a kind of possible embodiment, support base includes the side running through the bottom surface of support base and switching towards two
The slot in face and two supporting walls being separated out by slot are provided with connecting shaft between two supporting walls, and the top of swing component extends to
It is rotatably coupled in slot between two supporting walls and with connecting shaft.
During above-mentioned realization, since the top of swing component extends in the slot between two supporting walls and and connecting shaft
Be rotatably coupled, two support arms can form certain position-limiting action to the top of swing component so that swing component from
First position moves to more stable when the second position.
In a kind of possible embodiment, alarming device further includes axle sleeve, and axle sleeve is movably set in connecting shaft, and axle sleeve is set
It is placed between two supporting walls, the top of swing component is connect with axle sleeve.
During above-mentioned realization, the top of swing component is connect with axle sleeve, and axle sleeve is movably set in connecting shaft, then swing component
When moving to the second position from first position, the top of swing component is rotated around the axis of connecting shaft, and connecting shaft defines axle sleeve
Scope of activities, the motion path on the top of swing component is also defined, so that swing component is more stable during the motion.
In a kind of possible embodiment, the first elastic component is the first tie point with the junction of crossbeam or support base,
The junction of first elastic component and swing component is the second tie point, at first position, the first tie point, the second tie point and company
A little conllinear setting on the axial line of spindle, and connecting shaft is set between the first tie point and the second tie point.
During above-mentioned realization, at first position, due to the axle center of the first tie point, the second tie point and connecting shaft
A little conllinear setting on line, then can preferably keep the equilibrium state of swing component.In the case where being provided with connecting shaft, connection
Axis is set between the first tie point and the second tie point, is in order to enable the first elastic component moves to second from first position
It sets and shrinks, so that swing component is biased to the flank movement towards one of switch of support base.
In a kind of possible embodiment, the bottom surface of support base and the side of support base switched towards two are
Plane, bottom surface and side are seamlessly transitted by circular arc.
During above-mentioned realization, being linked up the bottom surface of support base and the side switched towards two by circular arc makes
It is seamlessly transitted.The bottom surface of support base is set as plane, and swing component can be easier to maintain equilibrium state at first position.
In a kind of possible embodiment, hot-metal bottle superelevation warning system further includes locating part, and locating part is respectively set
In two switch side, locating part is connect with crossbeam, when swing component is in the second position, locating part contacted with swing component or
There are the full swing angles that prepsetting gap is used to limit swing component.
During above-mentioned realization, locating part can limit the full swing angle of swing component, then when swing component contact is opened
Guan Shi can limit the swing angle of swing component by the effect of locating part, avoid swing component is excessive to the active force of switch from making
At switching damage.
In a kind of possible embodiment, swing component is connected with chain rope.
During above-mentioned realization, when swing component is in the second position, in order to enable swing component is restored to first position,
Swing component can be made along support base towards one of flank movement switched to the bottom of support base by pulling chain rope
Face, so that swing component restores first position again.
Second aspect, the embodiment of the present application provide a kind of alarming device comprising crossbeam, two switches, alarm, supports
Seat, swing component, elastic mechanism and the first elastic component；Two switches are mounted on crossbeam；Alarm is electrically connected with switch；Support
Seat is connect with crossbeam, and two switch the opposite sides for being respectively arranged at support base.
The top of swing component is rotatably coupled with support base；Elastic mechanism is installed on swing component and can be flexibly supported on
Support base；Swing component has first position and a second position, and first position is that elastic mechanism is held in the bottom surface of support base, and second
Position is the side towards one of switch that elastic mechanism is held in support base, and swing component is touched and started switch.
One end of first elastic component is connect with swing component, and the other end of the first elastic component is connect with crossbeam or support base, the
Amount of tension of one elastic component in first position is greater than the first elastic component in the amount of tension of the second position；First elastic component is configured to
Pulling force is provided for swing component and makes swing component that there is the trend for moving to the second position from first position.
During above-mentioned realization, crossbeam provides installation site for support base and switch.Swing component have first position and
The second position, at first position, since top and the support base of swing component are rotatably connected, and elastic mechanism is held in support
The bottom surface of seat makes elastic mechanism and support base have interaction force, then swing component is at first position because stress balance is kept
It is static.When effect of the bottom end of swing component by power, the swing component stress balance in first position can be broken.Due to first
Amount of tension of the elastic component in first position is greater than the first elastic component in the amount of tension of the second position, then when swing component stress balance quilt
When breaking, in the first elastic component under the action of biasing power, swing component moves to the second position, swing component touching from first position
And it starts switch so that alarm sounds an alarm.
In a kind of possible embodiment, elastic mechanism include the second elastic component, along swing component axial direction successively
First be arranged supports seat and second supports seat, and first, which supports seat, is movably connected on swing component and can transport along the axial direction of swing component
Dynamic, second, which supports seat, is fixed on swing component, and the compression of the second elastic component, which is installed on first and supports seat and second, to be supported between seat, and second
Elastic component, which acts on first and supports seat and enable first to support seat, is held in support base.
During above-mentioned realization, since the second elastic component is in compressive state, and second supports seat and is fixed on swing component,
First, which supports seat, is movably connected on swing component and can be along the axial movement of swing component, then the second elastic component can be supported to first
Seat generates active force and first to support seat to be held in support base, so that swing component keeps equilibrium state in first position.
In a kind of possible embodiment, support base includes the side running through the bottom surface of support base and switching towards two
The slot in face and two supporting walls being separated out by slot are provided with connecting shaft between two supporting walls, and the top of swing component extends to
It is rotatably coupled in slot between two supporting walls and with connecting shaft.
During above-mentioned realization, since the top of swing component extends in the slot between two supporting walls and and connecting shaft
Be rotatably coupled, two support arms can form certain position-limiting action to the top of swing component so that swing component from
First position moves to more stable when the second position.
In a kind of possible embodiment, alarming device further includes axle sleeve, and axle sleeve is movably set in connecting shaft, and axle sleeve is set
It is placed between two supporting walls, the top of swing component is connect with axle sleeve.
During above-mentioned realization, the top of swing component is connect with axle sleeve, and axle sleeve is movably set in connecting shaft, then swing component
When moving to the second position from first position, the top of swing component is rotated around the axis of connecting shaft, and connecting shaft defines axle sleeve
Scope of activities, the motion path on the top of swing component is also defined, so that swing component is more stable during the motion.
In a kind of possible embodiment, the first elastic component is the first tie point with the junction of crossbeam or support base,
The junction of first elastic component and swing component is the second tie point, at first position, the first tie point, the second tie point and company
A little conllinear setting on the axial line of spindle, and connecting shaft is set between the first tie point and the second tie point.
During above-mentioned realization, at first position, due to the axle center of the first tie point, the second tie point and connecting shaft
A little conllinear setting on line, then can preferably keep the equilibrium state of swing component.In the case where being provided with connecting shaft, connection
Axis is set between the first tie point and the second tie point, is in order to enable the first elastic component moves to second from first position
It sets and shrinks, so that swing component is biased to the flank movement towards one of switch of support base.
In a kind of possible embodiment, the bottom surface of support base and the side of support base switched towards two are
Plane, bottom surface and side are seamlessly transitted by circular arc.
During above-mentioned realization, being linked up the bottom surface of support base and the side switched towards two by circular arc makes
It is seamlessly transitted.The bottom surface of support base is set as plane, and swing component can be easier to maintain equilibrium state at first position.
In a kind of possible embodiment, hot-metal bottle superelevation warning system further includes locating part, and locating part is respectively set
In two switch side, locating part is connect with crossbeam, when swing component is in the second position, locating part contacted with swing component or
There are the full swing angles that prepsetting gap is used to limit swing component.
During above-mentioned realization, locating part can limit the full swing angle of swing component, then when swing component contact is opened
Guan Shi can limit the swing angle of swing component by the effect of locating part, avoid swing component is excessive to the active force of switch from making
At switching damage.
In a kind of possible embodiment, swing component is connected with chain rope.
During above-mentioned realization, when swing component is in the second position, in order to enable swing component is restored to first position,
Swing component can be made along support base towards one of flank movement switched to the bottom of support base by pulling chain rope
Face, so that swing component restores first position again.
The third aspect, the embodiment of the present application provide a kind of hot-metal bottle superelevation method for early warning, utilize first aspect embodiment
Hot-metal bottle superelevation warning system carry out comprising:
When the hot-metal bottle of the molten iron vehicle run on pipeline touches swing component, the swing component in first position
Force balance state is broken, under the action of the first elastic component, swing component be biased to support base towards one of switch
Flank movement, so that swing component is touched and started switch so that alarm sounds an alarm.
During above-mentioned realization, after the hot-metal bottle of the molten iron vehicle run on pipeline touches swing component, swing
Part can move to the second position from first position and make swing component touch and start switch so that alarm sounds an alarm, to mention
Awake hot-metal bottle superelevation.
The beneficial effect of the embodiment of the present application includes at least:
Swing component is at first position because stress balance is remain stationary.When effect of the bottom end of swing component by power, place
Swing component stress balance in first position can be broken.Amount of tension due to the first elastic component in first position is greater than the first elasticity
Part the second position amount of tension, then when swing component stress balance is broken, in the first elastic component under the action of biasing power,
Swing component moves to the second position from first position, and swing component is touched and started switch so that alarm sounds an alarm, for mentioning
Awake staff is further processed.
Detailed description of the invention
Technical solution in ord to more clearly illustrate embodiments of the present application, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only some embodiments of the application, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is the structural schematic diagram of alarming device of the swing component provided by the embodiments of the present application at first position；
Fig. 2 is the structural schematic diagram of the alarming device under another visual angle provided by the embodiments of the present application；
Fig. 3 is the structural schematic diagram under another visual angle Fig. 1；
Fig. 4 is the structural schematic diagram of alarming device of the swing component provided by the embodiments of the present application at the second position；
Fig. 5 is the structural schematic diagram of the crossbeam of the embodiment of the present application.
Icon: 100- alarming device；110- crossbeam；111- installs nut；120- switch；130- alarm；140- elasticity
Mechanism；141- first supports seat；142- second supports seat；The second elastic component of 144-；145- first connecting portion；150- support base；
151- first surface；152- second surface；153- third surface；154- supporting walls；155- slot；156- connecting shaft；157- axle sleeve；
158- mounting plate；159- second connecting portion；The first elastic component of 160-；The first tie point of 171-；The second tie point of 172-；181- limit
Position part；182- chain rope；184- touches plate；190- swing component.
Specific embodiment
To keep the purposes, technical schemes and advantages of the embodiment of the present application clearer, below in conjunction with the embodiment of the present application
In attached drawing, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described embodiment is
Some embodiments of the present application, instead of all the embodiments.The application being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be arranged and be designed with a variety of different configurations.
Therefore, the detailed description of the embodiments herein provided in the accompanying drawings is not intended to limit below claimed
Scope of the present application, but be merely representative of the selected embodiment of the application.Based on the embodiment in the application, this field is common
Technical staff's every other embodiment obtained without creative efforts belongs to the model of the application protection
It encloses.
In the description of the present application, it should be noted that the orientation or position of the instructions such as term " lower section ", "inner", "outside"
Relationship be based on the orientation or positional relationship shown in the drawings or this application product using when the orientation or position usually put
Relationship is merely for convenience of description the application and simplifies description, rather than the device or element of indication or suggestion meaning must have
There is specific orientation, be constructed and operated in a specific orientation, therefore should not be understood as the limitation to the application.In addition, term " the
One ", " second ", " third " etc. are only used for distinguishing description, are not understood to indicate or imply relative importance.
In the description of the present application, it is also necessary to which explanation is unless specifically defined or limited otherwise, term " setting ",
" installation ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally connect
It connects；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, can also indirectly connected through an intermediary, it can
To be the connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood with concrete condition
Concrete meaning in this application.
The embodiment of the present application provides a kind of alarming device 100, hot-metal bottle superelevation warning system and method for early warning, can be
It is sounded an alarm when hot-metal bottle packet mouth superelevation.
Alarming device 100, hot-metal bottle superelevation warning system and method for early warning are introduced below in conjunction with attached drawing.
It please refers to Fig. 1-Fig. 3, Fig. 1 and Fig. 2 and respectively illustrates knot of the alarming device 100 under the first visual angle and the second visual angle
Structure schematic diagram, Fig. 3 show the structural schematic diagram under another visual angle Fig. 1.
Alarming device 100 includes 110, two switches 120 of crossbeam, alarm 130, elastic mechanism 140, support base 150, the
One elastic component 160 and swing component 190.Wherein, crossbeam 110 is that support base 150 and switch 120 provide installation site, support base
150 connect with crossbeam 110, and two switches 120 are mounted on crossbeam 110, and two switches 120 are respectively arranged at support base 150
Opposite sides, alarm 130 are electrically connected with switch 120.Illustratively, support base 150 is connected by mounting plate 158 and crossbeam 110
It connects, it is to be understood that support base 150 can also directly be connect with crossbeam 110.Illustratively, alarm 130 is arranged in crossbeam
It on 110, and is electrically connected by cable with switch 120, meeting is so that alarm 130 is alarmed after switch 120 starts.
Support base 150 includes bottom surface and two sides towards two switches 120.Wherein, the bottom surface of support base 150 is
Second surface 152 (referring to fig. 4), two sides of the support base 150 towards two switches 120 are respectively first surface 151 and
Three surfaces 153, in other words, first surface 151 is towards one of switch 120, and third surface 153 is towards another switch
120。
Illustratively, first surface 151, second surface 152 and third surface 153 are plane, first surface 151 and
Three surfaces 153 are seamlessly transitted by circular arc and second surface 152.By circular arc by first surface 151,153 and of third surface
Second surface 152 links up, and first surface 151, second surface 152 and third surface 153 is enabled to seamlessly transit.
Illustratively, first surface 151 and third surface 153 are cambered surface, and second surface 152 is plane, first surface
151 cambered surface, the cambered surface on third surface 153 with the plane smooth transition of second surface 152.
The top of swing component 190 is rotatably coupled with support base 150, and elastic mechanism 140 is installed on swing component 190 and energy
Enough it is flexibly supported on support base 150.Swing component 190 has first position and the second position, and first position is that elastic mechanism 140 supports
It is held in the second surface 152 of support base 150.The second position is the first surface 151 that elastic mechanism 140 is held in support base 150
Or third surface 153, and swing component 190 is touched and starts switch 120.When second surface 152 is set as plane, swing component
190 can be easier to maintain equilibrium state at first position.
One end of first elastic component 160 is connect with swing component 190, the other end and crossbeam 110 or branch of the first elastic component 160
Seat 150 is supportted to connect.First elastic component 160 is the first tie point 171, the first elasticity with the junction of crossbeam 110 or support base 150
The junction of part 160 and swing component 190 is the second tie point 172 (referring to Fig. 1).Optionally, swing component 190 is provided with the first company
Socket part 145, crossbeam 110 or support base 150 are provided with second connecting portion 159, and one end of the first elastic component 160 is connected to first
Interconnecting piece 145, the other end of the first elastic component 160 are connected to second connecting portion 159 (referring to Fig. 3).Wherein, first connecting portion
145 surface bulge relative to crossbeam 110 or support base 150, surface bulge of the second connecting portion 159 with respect to swing component 190.It is logical
The protrusion setting for crossing both of the aforesaid connection site of the first elastic component 160, so that between the first elastic component 160 and support base 150
And gap is all had between swing component 190, and when swing component 190 is swung between the first position and the second position, the first bullet
Property part 160 will not be supported the obstruction of seat 150 and swing component 190.
Amount of tension of first elastic component 160 in first position is greater than the first elastic component 160 in the amount of tension of the second position；The
One elastic component 160 is configured to swing component 190 and provides pulling force and swing component 190 is had from first position move to second
The trend of position.Illustratively, the first elastic component 160 be spring or it is any have elasticity and can be in tensional state and contraction
The structure of state conversion.
When in said first position, the top of swing component 190 is rotatably connected with support base 150, and elastic mechanism 140 supports
The second surface 152 for being held in support base 150 makes elastic mechanism 140 and support base 150 have interaction force, then swing component
190 at first position because stress balance is remain stationary.When effect of the bottom end of swing component 190 by power, it is in first
190 stress balance of swing component set is broken.Amount of tension due to the first elastic component 160 in first position is greater than the first elastic component
160 the second position amount of tension, then when 190 stress balance of swing component is broken, in the power that biases of the first elastic component 160
Under effect, swing component 190 moves to the second position from first position, and swing component 190, which is touched and starts switch 120, makes alarm
130 sound an alarm.Alarm 130, which sounds an alarm, to remind staff to be further processed.During this, swing component
190 top is rotated relative to support base 150, and elastic mechanism 140 is held in support base 150 and moves synchronously with swing component 190.
Illustratively, the lower part of swing component 190, which is provided with, touches plate 184 (referring to Fig. 3), and the touch plate 184 is in second
It can be touched when setting and start switch 120.Illustratively, switch 120 is optionally micro- roller rock arm limiter, works as swing component
190 touch to micro- roller rock arm limiter rocker arm when can then start alarm 130 so that alarm 130 sounds an alarm.Separately
Outside, it should be noted that the embodiment of the present application is not specifically limited the type of switch 120, as long as can be realized swing component 190
Switch 120 can start and alarm 130 is sounded an alarm when touching switch 120.
Further, referring to Figure 1 and Fig. 4, switch 120 is caused to damage in order to avoid 190 swing angle of swing component is excessive
Bad, alarming device 100 is optionally provided with locating part 181, and locating part 181 is connect with crossbeam 110, and locating part 181 is set respectively
It is placed in the side of two switches 120, i.e., the side of each switch 120 is respectively provided with a locating part 181.Locating part 181 can be
Between switch 120 and support base 150, also it can be set in the outside of two switches 120.When two settings of locating part 181 exist
When the outside of two switches 120, switch 120 is than locating part 181 closer to support base 150.When swing component 190 is in the second position
When, locating part 181 is contacted with swing component 190 or there are the full swing angles that prepsetting gap is used to limit swing component 190.Pass through
The full swing angle for limiting swing component 190, can damage switch 120 to avoid 190 swing angle of swing component is excessive.Show
Example property, prepsetting gap is optionally 0.1~2mm, 0.5~1mm, 0.1~0.5mm or 0.3~1.5mm.It should be noted that
Above-mentioned prepsetting gap is a kind of example, as long as prepsetting gap can guarantee that swing component 190 does not damage switch 120.
Referring to Figure 1, Fig. 3 and Fig. 4, in a kind of possible embodiment, elastic mechanism 140 includes the second elastic component
144, what the axial direction along swing component 190 was set gradually first supports seat 141 and second and supports seat 142, and first supports seat 141
It is movably connected on swing component 190 and can be along the axial movement of swing component 190, second, which supports seat 142, is fixed on swing component 190,
The compression of second elastic component 144, which is installed on first and supports seat 141 and second, to be supported between seat 142, and the second elastic component 144 acts on the
One, which supports seat 141, first to support seat 141 to be held in support base 150.
Illustratively, it first supports seat 141 and offers mounting hole, the top of swing component 190 is arranged in first and supports seat 141
Mounting hole first to support seat 141 to be movably connected on swing component 190 close to one end of support base 150.In other embodiments
In, limiting slot can also be opened up in the outer wall of swing component 190, limiting slot is arranged along the axial direction of swing component 190, and first supports
Seat 141, which is provided with, to be set in limiting slot and can slide along limiting slot with the matched limited block of limiting slot, limited block.
First supports seat 141 and second supports the second elastic component 144 being provided between seat 142 in compressive state, and
Two elastic components 144, which act on first and support seat 141 and enable first to support seat 141, is held in first surface 151, second surface
152 or third surface 153.Illustratively, the second elastic component 144 is spring, and spring pocket is set to the outer wall of swing component 190.Wherein,
The both ends of spring can support seat 141 with first respectively, second support seat 142 and connect.It is understood that the second elastic component
144 are also possible to the elastic slice in compressive state, and the both ends of elastic slice support seat 141 with first respectively, second support the company of seat 142
It connects.
Since second supports seat 142 and be fixed on swing component 190, first supports seat 141 can be with respect to the axial direction of swing component 190
Movement, then when the second elastic component 144 setting in compressive state supports seat 141 first and second supports between seat 142,
The active force of second elastic component 144, which acts on first and supports seat 141 and make first to support seat 141, is held in first surface 151,
Two surfaces 152 or third surface 153.At first position, it is held in since the second elastic component 144 makes first to support seat 141
Second surface 152, first supports seat 141 and second surface 152 with certain frictional force, only collision 190 ability of swing component
So that the state of swing component 190 changes, it is not easy to maloperation.
In other embodiments, only setting first it can also support seat 141 and be not provided with second and support seat 142, the second bullet
One end of property part 144 is directly connected to swing component 190, and the other end of the second elastic component 144 is held in first and supports seat 141.
Fig. 3 is referred to, in a kind of possible embodiment, support base 150 includes running through first surface 151, the second table
The slot 155 on face 152 and third surface 153 and two supporting walls 154 being separated out by slot 155.It is arranged between two supporting walls 154
There is connecting shaft 156, can turn in the slot 155 that the top of swing component 190 extends between two supporting walls 154 and with connecting shaft 156
It connects dynamicly.
In other words, there is a slot 155, the top of swing component 190 extends to two supports between two supporting walls 154
It is rotatably coupled in slot 155 between wall 154 with connecting shaft 156, meanwhile, first, which supports seat 141, is held in first surface
151, second surface 152 or third surface 153.Wherein, two supporting walls 154 can be formed centainly the top of swing component 190
Position-limiting action so that swing component 190 is more stable when moving to the second position from first position.
Illustratively, each supporting walls 154 offer the pilot hole being correspondingly arranged, and the fixation of connecting shaft 156 is arranged in each
The pilot hole of supporting walls 154, alarming device 100 are additionally provided with axle sleeve 157, and axle sleeve 157 is movably set in connecting shaft 156, axle sleeve
157 are set between two supporting walls 154, and the top of swing component 190 is connect with axle sleeve 157.It is understood that supporting walls
154 can also be not provided with pilot hole, as long as the both ends of connecting shaft 156 are connect with two supporting walls 154 respectively.
Since the top of swing component 190 is connect with axle sleeve 157, axle sleeve 157 is movably set in connecting shaft 156, then swing component
190 when moving to the second position from first position, and the top of swing component 190 is rotated around the axis of connecting shaft 156, connecting shaft
156 define the scope of activities of axle sleeve 157, also define the motion path on the top of swing component 190, so that swing component
190 is more stable during the motion.
In other embodiments, sliding slot can also be opened up along the circumferential direction of connecting shaft 156, the top of swing component 190 is provided with
With the matched pulley of sliding slot, pulley is limited in sliding slot and can move in sliding slot, and swing component 190 equally also may be implemented
Top be rotatably coupled with connecting shaft 156.
It should be noted that support base 150 is also possible to an overall structure, first surface 151, second is not extended through
The slot 155 on surface 152 and third surface 153.Illustratively, under the facilities, support base 150 is provided with rotation axis, turns
With respect to the surface bulge of support base 150, swing component 190 is rotatably coupled moving axis with the rotation axis.Specifically rotationally connect
The mode of connecing refers to the connection type of swing component 190 Yu connecting shaft 156, and details are not described herein.
Illustratively, referring to Figure 1, at first position, the first tie point 171, the second tie point 172 and connecting shaft
A little conllinear setting on 156 axial line, and connecting shaft 156 be set to the first tie point 171 and the second tie point 172 it
Between.
At first position, due to one on the axial line of the first tie point 171, the second tie point 172 and connecting shaft 156
The conllinear setting of point, it is meant that the first elastic component 160 passes through a bit on the axial line of connecting shaft 156, and the first elastic component 160 is protected
Linear state is held, then can preferably keep the equilibrium state of swing component 190.In the case where being provided with connecting shaft 156, connection
Axis 156 is set between the first tie point 171 and the second tie point 172, and the first elastic component 160 is enabled to transport from first position
It moves to the second position and shrinks, so that swing component 190 is automatically biased towards first surface 151 or third surface
The movement of 153 sides.
It is understood that the line of the first tie point 171 and the second tie point 172 can also be without connecting shaft 156
Axial line on a bit, as long as swing component 190 is able to maintain stationary state at first position.
In addition, swing component 190 is restored to first position from the second position for convenience, the embodiment of the present application is illustratively
It is connected with chain rope 182 (referring to Fig. 3) in swing component 190, when swing component 190 moves to the second position from first position, chain rope
182 will not form obstruction to the movement of swing component 190.Swing component 190 holds chain rope 182 and makes swing component at the second position
190 top moves to second surface 152 along first surface 151 or third surface 153, can make swing component 190 again
Restore first position, for use next time.
The embodiment of the present application also provides a kind of hot-metal bottle superelevation warning system comprising above-mentioned alarming device 100, blast furnace
And by the pipeline below blast furnace.Molten iron vehicle carrys hot-metal bottle and can be conveyed by pipeline.
Wherein, bracket is provided with below blast furnace, blast furnace is supported and forms accommodation space, pipeline below blast furnace by bracket
It is arranged below blast furnace.Blast furnace bottom is equipped with thermal insulation board, i other words the high furnace outer wall above pipeline is equipped with thermal insulation board.
Crossbeam 110 is installed on the table of blast furnace, and the swing component 190 of alarming device 100 is set to the top of pipeline.Example
Property, swing component 190 is direct rod shape structure.Swing component 190 at first position, the bottom end of swing component 190 and blast furnace it is heat-insulated
Plate flushes or than thermal insulation board closer to pipeline.Illustratively, crossbeam 110 is connected by the table of installation nut 111 and blast furnace
It connects (referring to Fig. 5), alarming device 100 is arranged close to pipeline in the position of the entrance of accommodation space.Illustratively, swing component
190 at first position state in a vertical shape.
When molten iron vehicle carries hot-metal bottle when pipeline is conveyed, if the hot-metal bottle packet mouth on molten iron vehicle is touched
To swing component 190,190 stress balance of swing component in first position can be made to be broken.In biasing for the first elastic component 160
Under the action of power, swing component 190 moves to the second position from first position, and swing component 190, which is touched and starts switch 120, to report
Alert device 130 sounds an alarm, and reminds staff to handle hot-metal bottle packet mouth, avoids hot-metal bottle packet mouth superelevation to blast furnace bottom
Thermal insulation board damage.It should be noted that since the bottom end of swing component 190 is flushed with the thermal insulation board of blast furnace or than heat-insulated
Plate, if the hot-metal bottle packet mouth on molten iron vehicle does not touch the bottom end of swing component 190, illustrates molten iron closer to pipeline
Tank packet mouth will not touch thermal insulation board.
The present embodiment also provides a kind of hot-metal bottle superelevation method for early warning, using above-mentioned hot-metal bottle superelevation warning system into
Row comprising:
When the hot-metal bottle of the molten iron vehicle run on pipeline touches swing component 190, the swing in first position
The force balance state of part 190 is broken, and under the action of the first elastic component 160, swing component 190 is biased to the face of support base 150
The flank movement of a switch 120 thereto makes alarm 130 issue police so that swing component 190 is touched and starts switch 120
Report.
When alarm 130 sounds an alarm, it is heat-insulated to illustrate that the hot-metal bottle packet mouth superelevation on molten iron vehicle may touch
Plate can remind staff to handle hot-metal bottle packet mouth after then sounding an alarm, avoid hot-metal bottle packet mouth superelevation to blast furnace
The thermal insulation board of bottom damages.
The foregoing is merely preferred embodiment of the present application, are not intended to limit this application, for the skill of this field
For art personnel, various changes and changes are possible in this application.Within the spirit and principles of this application, made any to repair
Change, equivalent replacement, improvement etc., should be included within the scope of protection of this application.
Claims (17)
1. a kind of hot-metal bottle superelevation warning system, including blast furnace and by the pipeline below the blast furnace, the blast furnace bottom
Portion is equipped with thermal insulation board, which is characterized in that further includes alarming device；
The alarming device includes:
Crossbeam is installed on the table of the blast furnace；
Two switches, two switches are mounted on the crossbeam；
Alarm, the alarm are electrically connected with the switch；
Support base, the support base are connect with the crossbeam, and two described switch are respectively arranged at opposite the two of the support base
Side；
Swing component, the swing component are set to the top of the pipeline, and the top of the swing component can turn with the support base
It connects dynamicly；
Elastic mechanism, the elastic mechanism are installed on the swing component and can be flexibly supported on the support base；The swing
Part has first position and the second position, and the first position is the bottom surface that the elastic mechanism is held in the support base, institute
State the side towards one of switch that the second position is held in the support base for the elastic mechanism, and the swing component
It touches and starts the switch；At the first position, the bottom end of the swing component flushes or compares with the thermal insulation board of blast furnace
The thermal insulation board is closer to the pipeline；And
One end of first elastic component, first elastic component is connect with the swing component, the other end of first elastic component with
The crossbeam or support base connection, amount of tension of first elastic component in the first position are greater than first elasticity
Amount of tension of the part in the second position；First elastic component is configured to the swing component and provides pulling force and make described
Swing component has the trend that the second position is moved to from the first position.
2. hot-metal bottle superelevation warning system according to claim 1, which is characterized in that the elastic mechanism includes the second bullet
Property part, along the swing component axial direction set gradually first support seat and second and support seat, described first to support seat living
Dynamic to be connected to the swing component and be along the axial movement of the swing component, described second, which supports seat, is fixed on the swing
Part, second elastic component compression, which is installed on described first and supports seat and described second, to be supported between seat, second elastic component
It acts on described first and supports seat and enable described first to support seat and be held in the support base.
3. hot-metal bottle superelevation warning system according to claim 1, which is characterized in that the support base includes through described
The slot of the bottom surface of support base and the side towards two switches and two supporting walls being separated out by the slot, two
Connecting shaft is provided between a supporting walls, the top of the swing component extends to the slot between two supporting walls
It is interior and be rotatably coupled with the connecting shaft.
4. hot-metal bottle superelevation warning system according to claim 3, which is characterized in that the alarming device further includes axis
Set, the axle sleeve are movably set in the connecting shaft, and the axle sleeve is set between two supporting walls, the swing component
Top is connect with the axle sleeve.
5. hot-metal bottle superelevation warning system according to claim 4, which is characterized in that first elastic component and the cross
The junction of beam or the support base is the first tie point, and the junction of first elastic component and the swing component connects for second
Contact, at the first position, one on the axial line of first tie point, second tie point and the connecting shaft
The conllinear setting of point, and the connecting shaft is set between first tie point and second tie point.
6. hot-metal bottle superelevation warning system according to claim 1-5, which is characterized in that the bottom of the support base
Face and the side of the support base switched towards two are plane, and the bottom surface and the side are flat by circular arc
It slips over and crosses.
7. hot-metal bottle superelevation warning system according to claim 1-5, which is characterized in that the hot-metal bottle superelevation
Warning system further includes locating part, and the locating part is connect with the crossbeam, and the locating part is respectively arranged at described two open
The side of pass, when the swing component is in the second position, the locating part is contacted with the swing component or there are default
Gap is used to limit the full swing angle of the swing component.
8. hot-metal bottle superelevation warning system according to claim 1-5, which is characterized in that the swing component connection
There is chain rope.
9. a kind of alarming device, characterized in that it comprises:
Crossbeam；
Two switches, two switches are mounted on the crossbeam；
Alarm, the alarm are electrically connected with the switch；
Support base, the support base are connect with the crossbeam, and two described switch are respectively arranged at opposite the two of the support base
Side；
Swing component, the top of the swing component are rotatably coupled with the support base；
Elastic mechanism, the elastic mechanism are installed on the swing component and can be flexibly supported on the support base；The swing
Part has first position and the second position, and the first position is the bottom surface that the elastic mechanism is held in the support base, institute
State the side towards one of switch that the second position is held in the support base for the elastic mechanism, and the swing component
It touches and starts the switch；And
One end of first elastic component, first elastic component is connect with the swing component, the other end of first elastic component with
The crossbeam or support base connection, amount of tension of first elastic component in the first position are greater than first elasticity
Amount of tension of the part in the second position；First elastic component is configured to the swing component and provides pulling force and make described
Swing component has the trend that the second position is moved to from the first position.
10. alarming device according to claim 9, which is characterized in that the elastic mechanism includes the second elastic component, along institute
It states the axial direction of swing component is set gradually first and supports seat and second and support seat, described first, which supports seat, is movably connected on institute
State swing component and can be along the axial movement of the swing component, described second, which supports seat, is fixed on the swing component, and described second
Elastic component compression, which is installed on described first and supports seat and second, to be supported between seat, and second elastic component acts on described first and supports
It holds seat and enables described first to support seat and be held in the support base.
11. alarming device according to claim 9, which is characterized in that the support base includes through the support base
The slot of bottom surface and the side towards two switches and two supporting walls being separated out by the slot, two branch
Be provided with connecting shaft between support wall, the top of the swing component extend in the slot between two supporting walls and with institute
Connecting shaft is stated to be rotatably coupled.
12. alarming device according to claim 11, which is characterized in that the alarming device further includes axle sleeve, the axis
Set is movably set in the connecting shaft, and the axle sleeve is set between two supporting walls, the top of the swing component and institute
State axle sleeve connection.
13. alarming device according to claim 12, which is characterized in that first elastic component and the crossbeam are described
The junction of support base is the first tie point, and the junction of first elastic component and the swing component is the second tie point,
It is a little conllinear on the axial line of first tie point, second tie point and the connecting shaft when first position
Setting, and the connecting shaft is set between first tie point and second tie point.
14. according to the described in any item alarming devices of claim 9-13, which is characterized in that the bottom surface of the support base and institute
The side switched towards two for stating support base is plane, and the bottom surface and the side are seamlessly transitted by circular arc.
15. according to the described in any item alarming devices of claim 9-13, which is characterized in that the alarming device further includes limit
Part, the locating part are connect with the crossbeam, and the locating part is respectively arranged at the side of described two switches, when the swing
When part is in the second position, the locating part is contacted with the swing component or there are prepsetting gaps for limiting the swing
The full swing angle of part.
16. according to the described in any item alarming devices of claim 9-13, which is characterized in that the swing component is connected with chain rope.
17. a kind of hot-metal bottle superelevation method for early warning, which is characterized in that it utilizes the described in any item hot-metal bottles of claim 1-8
Superelevation warning system carries out comprising:
When the hot-metal bottle of the molten iron vehicle run on the pipeline touches the swing component, in the first position
The force balance state of the swing component is broken, and under the action of first elastic component, the swing component is biased to the branch
The flank movement towards one of switch of seat is supportted, so that the swing component is touched and starts the switch so that the alarm
Device sounds an alarm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910715963.2A CN110340339B (en) | 2019-08-05 | 2019-08-05 | Warning device, molten iron tank ultrahigh warning system and early warning method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910715963.2A CN110340339B (en) | 2019-08-05 | 2019-08-05 | Warning device, molten iron tank ultrahigh warning system and early warning method |
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| CN110340339B CN110340339B (en) | 2021-01-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111304385A (en) * | 2020-03-09 | 2020-06-19 | 中冶南方工程技术有限公司 | Blast furnace-converter production system based on hot metal ladle straddle carrier and operation method thereof |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| KR20110110541A (en) * | 2010-04-01 | 2011-10-07 | 김응욱 | 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 |
| CN103426310A (en) * | 2013-08-21 | 2013-12-04 | 梁崇彦 | Front movable swing arm type detection alarm system for road height limiting frame |
| CN205810687U (en) * | 2016-06-21 | 2016-12-14 | 新昌县富士精工科技有限公司 | A kind of liquid-level switch with warning function |
| CN108252239A (en) * | 2018-01-16 | 2018-07-06 | 江苏海天科技有限公司 | A kind of road is alarmed with limit for height and blocking apparatus |
| CN208895191U (en) * | 2018-08-01 | 2019-05-24 | 张家港名阳精密机械制造有限公司 | A kind of automatic feeding of the band for automatic lathe without material alarm |
-
2019
- 2019-08-05 CN CN201910715963.2A patent/CN110340339B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| KR20110110541A (en) * | 2010-04-01 | 2011-10-07 | 김응욱 | 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 |
| CN103426310A (en) * | 2013-08-21 | 2013-12-04 | 梁崇彦 | Front movable swing arm type detection alarm system for road height limiting frame |
| CN205810687U (en) * | 2016-06-21 | 2016-12-14 | 新昌县富士精工科技有限公司 | A kind of liquid-level switch with warning function |
| CN108252239A (en) * | 2018-01-16 | 2018-07-06 | 江苏海天科技有限公司 | A kind of road is alarmed with limit for height and blocking apparatus |
| CN208895191U (en) * | 2018-08-01 | 2019-05-24 | 张家港名阳精密机械制造有限公司 | A kind of automatic feeding of the band for automatic lathe without material alarm |
Non-Patent Citations (1)
| Title |
|---|
| 颜学文: "吊钩限位器的改革 ", 《劳动保护》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111304385A (en) * | 2020-03-09 | 2020-06-19 | 中冶南方工程技术有限公司 | Blast furnace-converter production system based on hot metal ladle straddle carrier and operation method thereof |
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|---|---|
| CN110340339B (en) | 2021-01-05 |
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