CN113976840A - Long-distance controllable stream inoculation device for large iron casting ladle - Google Patents
Long-distance controllable stream inoculation device for large iron casting ladle Download PDFInfo
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- CN113976840A CN113976840A CN202111161251.4A CN202111161251A CN113976840A CN 113976840 A CN113976840 A CN 113976840A CN 202111161251 A CN202111161251 A CN 202111161251A CN 113976840 A CN113976840 A CN 113976840A
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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
- B22D1/00—Treatment of fused masses in the ladle or the supply runners before casting
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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
- B22D2/00—Arrangement of indicating or measuring devices, e.g. for temperature or viscosity of the fused mass
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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
- B22D46/00—Controlling, supervising, not restricted to casting covered by a single main group, e.g. for safety reasons
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- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Abstract
The invention discloses a remote controllable stream inoculation device for a large iron casting ladle, which comprises an inoculant hopper assembly arranged above the ladle and a controller connected with the inoculant hopper assembly; a fixed clapboard with holes and a movable clapboard with holes are arranged in the inoculant hopper assembly, and the movable clapboard with holes and the fixed clapboard with holes move relatively under the control of the control assembly; the stream inoculation device properly solves the problem of controllable and timely addition of the inoculant under the condition of not increasing the labor intensity and the operation difficulty; the control assembly is arranged in the hopper, and the controller is arranged near the pouring device of the casting ladle, so that an operator can operate the controller incidentally while operating the inclination of the casting ladle, the starting and the stopping of the filling of the stream inoculant are realized, the accurate grasping of the adding time is facilitated, and the operation is very convenient.
Description
Technical Field
The invention relates to the technical field of casting stream inoculation tools, in particular to a remote controllable stream inoculation device for a large iron casting ladle.
Background
In the production process of large-scale nodular cast iron, gray cast iron and other iron castings, stream inoculation treatment becomes an indispensable device for ensuring the product quality because of the influence of the decay of the inoculation effect in a ladle along with time. Inoculation is generally to add a heterogeneous nucleating agent, namely ferrosilicon alloy, in the production of iron castings for increasing the nucleation rate of graphite, thereby inhibiting the white cast iron and improving the mechanical properties of the castings. In the actual production process of large iron castings, such as ingots and the like, because the iron liquid has long residence time in a casting ladle and includes ladle inoculation, ladle transfer and casting, a stream inoculation device is required to be additionally arranged for promoting graphitization. At present, two forms of granular addition and wire feeding addition are mostly adopted for adding the stream inoculant in the industrial production. For the wire feeding method, the inoculant needs to be made into a wire shape and added on a special device in a controllable way. The method has the advantages that the adding amount is controllable, and the inoculation effect is good because the adding amount is directly extended into the flowing molten iron. But has the disadvantages of high cost and high price of the inoculant contained in the iron wire except for the wire feeding device. For small castings with high added value, the wire feeding method is widely used for production at present. However, for large castings, the addition of particles is the predominant technique because of its relative sensitivity to cost. For the setting of the inoculating device, it is generally set near the pouring ladle or the pouring gate of the casting. The stream inoculation device arranged near the casting is generally controlled by electrification, and when the outflow of molten iron is detected, the stream inoculation device automatically sprays stream inoculation agents until the casting is finished. However, in the case of a large casting such as an ingot mold, the gate position is high, and the temperature during casting is high, which results in poor visibility and is not favorable for electrical wiring. Therefore, the stream inoculation device is directly arranged on the ladle instead of being arranged near the sprue of the large casting.
The stream inoculation device arranged on the ladle is inconvenient for arrangement of electric appliance wiring and mechanical devices when bearing high temperature because the outflow port of the inoculant needs to correspond to the pouring gate of the ladle and the ladle needs to be transported and lifted at the same time. The Chinese invention patent (publication number: CN112045153B) discloses an intelligent stream inoculation device and a stream inoculation method in 2021, wherein the stream inoculation device comprises a casting ladle, a support frame, an inoculation funnel, a push rod device, a storage battery, a Bluetooth module, a low electric quantity alarm and an intelligent mobile phone; the main control device of the inoculation device is basically positioned above the casting ladle, is obviously roasted under high temperature and is easy to lose efficacy after long-term use; in addition, the inoculation device controls the inoculant through the smart phone, which seems to be convenient and is not beneficial to the operation of workers, because the casting ladle in the patent is obviously a casting ladle with a rotary handle and is manually and obliquely adjusted, the operator needs to operate at one side of the casting ladle, and if the operator needs to operate the smart phone, the inoculation device is very inconvenient or needs another person to operate the smart phone.
For the casting of large castings, most of the operations are manual, and the outflow of the stream-following inoculant is consistent with the outflow of the cast iron liquid. The liquid iron generally begins to flow out to a riser and finally flows into a pouring gate, so that the addition of the inoculant lags the outflow of the liquid iron slightly and the addition of the inoculant stops earlier than the completion of casting, and waste is avoided. The stream inoculation device is convenient to operate manually and can be remotely controlled. Therefore, the portability of remote control and the high temperature resistance of electrical elements are considered for the stream inoculation device on the large casting ladle.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides a remote controllable stream inoculation device for a large iron casting ladle.
In order to achieve the purpose, the invention adopts the technical scheme that:
a remote controllable stream inoculation device for a large iron casting ladle comprises an inoculant hopper assembly arranged above the casting ladle and a controller connected with the inoculant hopper assembly;
the inoculant hopper assembly comprises an inner shell with an opening at the upper part, the inner part of the inner shell is divided into a storage cavity and a discharge cavity by a fixed partition plate with holes, one side of the fixed partition plate with holes is tightly attached with a movable partition plate with holes, and the movable partition plate with holes moves relative to the fixed partition plate with holes under the control of a control assembly, so that inoculant in the storage cavity quantitatively enters the discharge cavity and flows out through a discharge hole in the discharge cavity;
the periphery of the inner shell is covered with a fireproof heat-insulating layer and is wrapped with a protective shell, an openable upper cover is arranged above the protective shell, a thermocouple is inserted into the side wall of the protective shell on one side of the discharging cavity, and a thermocouple is also arranged below the inner shell; the protective shell is arranged on a supporting steel pipe frame through an adjustable fixing support, and the supporting steel pipe frame is arranged above one side of the casting ladle close to the casting nozzle;
the controller is movably arranged at a pouring control device close to the casting ladle, the controller is at least connected with a control line and a temperature feedback line, the control line and the temperature feedback line are respectively distributed and connected into the inoculant hopper assembly along the inside of the supporting steel pipe frame, the control line is connected with the control assembly, and the temperature feedback line is respectively connected with the thermocouple.
The stream inoculation device properly solves the problem of controllable and timely addition of the inoculant under the condition of not increasing the labor intensity and the operation difficulty; the control assembly is arranged in the hopper, and the controller is arranged near the (manual) pouring device of the casting ladle, so that an operator can operate the controller by one hand while the casting ladle is inclined, the other hand can operate the controller by the way, the starting and stopping of the adding of the inoculant along with the stream are realized, the accurate holding of the adding time is facilitated, the operation is very convenient, and the additional manual operation is reduced.
The closely arranged fixed partition plates with holes and the movable partition plates with holes can naturally divide the inner shell into two chambers with different sizes, the storage cavity is used for storing the inoculant, and the discharge cavity is used as a discharge channel and can enable the permeated inoculant to flow into molten iron completely and smoothly; when the movable partition plate with holes moves, the holes are completely blocked, partially blocked and completely communicated, so that stable outflow of inoculants with different amounts can be realized, the movable partition plate with holes has the functions of blocking and controlling the amount, and compared with other inoculation devices, the inoculation device with holes has the advantages that the force required to be opened is smaller, the inoculation device with holes is more convenient to use, and the reliability is better.
The arrangement of the fire-resistant heat-insulating layer can protect various components in the hopper from being affected by high-temperature baking, the service life of the components is guaranteed, and the running stability of the device is enhanced; the setting of protecting sheathing can improve holistic intensity, also can play the guard action, ensures that the device can not receive the injury at the in-process of handling installation, also is convenient for connect and install. The adjustable fixed support is adopted for connection and installation, so that the whole hopper can be adjusted in position, the discharge port can reach the optimal position, and the flowing inoculant can be favorably dissolved into molten iron; the supporting steel pipe frame is simple in structure, easy to install and use and convenient for laying of lines.
The thermocouples are arranged at a plurality of positions inside and outside, so that the internal stability can be obtained in real time, the temperature monitoring is facilitated, and the damage of high temperature to internal components is avoided; the circuit is connected with the controller, so that signal receiving and transmission are smoother, and the influence of high-temperature radiation on signals is avoided.
Further, foraminiferous removal baffle sets up in the one side that is close to the unloading chamber, foraminiferous removal baffle with the hole on the foraminiferous fixed baffle is the array setting and the size is the same, and the interval between the adjacent hole is not less than the diameter of hole, the removal scope value of foraminiferous removal baffle is not less than the diameter value of hole.
The movable partition plate with the holes is arranged on one side far away from the material storage cavity, so that the frictional resistance of the stored inoculant to opening can be reduced, and the force required by opening and closing is reduced; such setting of hole diameter and interval guarantees on the one hand that the hole can play complete effect of blockking after staggering, and on the other hand does not need foraminiferous removal baffle carries out the removal of large distance.
Furthermore, an inclined cover plate is arranged above the discharging cavity, and the inclined cover plate is inclined downwards to a position connected with the inner shell to form the discharging hole; the thermocouple is inserted into the space above the inclined cover plate.
The inclined cover plate is arranged, so that the discharging cavity can form a space arrangement which is reduced towards the direction of the discharging hole, the whole discharging of the inoculant is facilitated, and the inoculant can be prevented from remaining in an upper space after being inclined; when the casting ladle is inclined, the inoculant hopper assembly is also inclined, the discharge hole is arranged to be provided with a notch at the lower part, and the inoculant can fall into the casting nozzle.
Furthermore, the control assembly comprises a mounting bracket arranged on the inner side of the protective shell, a pair of electromagnetic relays are arranged on the mounting bracket, and the electromagnetic relays are connected with the upper end of the movable partition plate with the holes; the electromagnetic relay is connected with the control line.
The electromagnetic relay is positioned on the inner shell, but still in a space covered by the protective shell and the upper cover, so that the electromagnetic relay can be protected; when the electromagnetic relay is in an open state, the spring at the upper part of the movable partition plate with holes is in a compressed state, and the movable partition plate with holes moves to a position overlapped with the holes of the fixed partition plate with holes under the action of the magnetic force of the electromagnetic relay, so that the inoculant flows out under the action of gravity; when the electromagnetic relay is in a power-off state, the movable partition plate with the holes moves under the thrust action of the powerful spring, so that the holes between the two partition plates are not overlapped, and the inoculant flows out in a closed state.
Furthermore, the fireproof heat insulation layer is made of fireproof heat insulation cotton, and the protective shell is formed by welding a plurality of heat-resistant plates; one side of the upper cover is connected with the upper side wall of the protective shell through a hinge, the other side of the upper cover is connected with the protective shell through a snap fastener, a handle is further arranged on the upper cover, and the height of the protective shell is larger than that of the inner shell. The protective shell arranged in this way has good strength and is easy to open and close.
Furthermore, the fixed support comprises L-shaped fixed frames arranged on two sides of the protective shell, the bottom of each L-shaped fixed frame is fixed on the supporting steel pipe frame, a plurality of waist-shaped long holes are formed in the side wall of each L-shaped fixed frame, and adjusting bolts connected with the protective shell are arranged in the long holes.
Through adjusting the position of protecting sheathing between a pair of L shape mount realizes the adjustment of discharge gate, adjusting bolt can lock and loosen the operation.
Further, the supporting steel pipe frame comprises a pair of n-shaped steel pipes arranged in parallel, the inoculant hopper assembly is transversely arranged on the pair of n-shaped steel pipes, and the discharge hole is positioned above the pouring nozzle; the two ends of the n-shaped steel pipe are respectively fixed on the periphery of the upper part of the casting ladle through fixing pieces, the control line and the temperature feedback line are respectively led in from the port of the n-shaped steel pipe, and a plurality of lead holes are formed in the connection part of the n-shaped steel pipe and the protective shell; the outer peripheral wall of the casting ladle is also provided with a plurality of wire clamps.
The arrangement of the pair of n-shaped steel pipes is simple and convenient, other parts cannot be influenced, the outflow of molten iron cannot be influenced, the hollow space of the steel pipes can be used for wiring, wiring harnesses cannot be entangled and disordered, the wiring harnesses are prevented from being exposed above the molten iron, and the excellent guiding and protecting effects on the wiring harnesses are achieved; the arrangement of the wire clamps is convenient for orderly leading the wire harnesses to the controller.
Furthermore, the control line and the temperature feedback line are both mica high-temperature lines, the peripheries of the control line and the temperature feedback line are both wrapped with protective sleeves, and the protective sleeves are heat-resistant ceramic tubes; fireproof heat insulation cotton is filled between the control line and the inner periphery of the support steel pipe frame and between the temperature feedback line and the inner periphery of the support steel pipe frame, and the outer periphery of the support steel pipe frame is also coated with a heat-resistant coating.
The protective sleeve can protect the wires, both to prevent high temperatures and to enhance strength; the high-temperature baking resistance of the supporting steel pipe frame can be improved due to the arrangement of the heat-resistant coating, the fireproof heat-insulating cotton plays a heat-insulating role on one hand, and on the other hand, a flexible environment is improved, and the rigid friction between the wire harness and the inner periphery of the steel pipe is avoided.
Furthermore, a rechargeable battery module, a temperature early warning module and a switch control module are also arranged in the controller, the temperature early warning module is connected with the thermocouple through the temperature feedback line, and the switch control module is connected with the control assembly through the control line; the back of the shell of the controller is also embedded with a rubidium magnet for adsorption, and the front of the controller is provided with an operation panel and a display screen. The temperature early warning device can timely master whether the electrical component can normally work or not and timely make adjustment. And judging the working reliability of the control device before operating the remote controller according to the limit of the heat-resisting temperature of the electromagnetic component and the real-time temperature.
Further, still be equipped with communication module in the controller, communication module and outside mobile terminal are connected, preset the APP that shows and control in the mobile terminal.
Compared with the prior art, the invention has the beneficial effects that: 1. the stream inoculation device properly solves the problem of controllable and timely addition of the inoculant under the condition of not increasing the labor intensity and the operation difficulty; the control assembly is arranged in the hopper, and the controller is arranged near the pouring device of the casting ladle, so that an operator can operate the controller with one hand while operating the casting ladle to incline and with the other hand, the starting and stopping of the feeding of the inoculant are realized, the accurate holding of the feeding time is facilitated, the operation is very convenient, and the additional manual operation is reduced; 2. the fixed baffle plate with holes and the movable baffle plate with holes which are closely arranged can realize the stable outflow of inoculants with different amounts by making the holes from full shielding to partial shielding to full communication under the relative motion, the movable baffle plate with holes can play a role in both blocking and controlling the amount, and compared with other inoculation devices, the inoculation device with holes has the advantages of smaller force required to be opened, more convenient use and better reliability; 3. the arrangement of the fire-resistant heat-insulating layer can protect various components in the hopper from being affected by high-temperature baking, the service life of the components is guaranteed, and the running stability of the device is enhanced; the protective shell can improve the overall strength, play a role in protection and facilitate overall connection and installation; 4. arrange including outside a plurality of positions the thermocouple can acquire internal stability in real time, is favorable to the control of temperature for whether temperature early warning device can in time master electrical components and parts and can normally work, in time makes the adjustment, in order to avoid the harm of high temperature to inside components and parts.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a remote controllable stream inoculation device for a large iron casting ladle according to the present invention;
FIG. 2 is a schematic diagram of a partially enlarged structure of a remote controllable stream inoculation device for a large iron casting ladle according to the present invention;
FIG. 3 is a schematic diagram of the internal structure of a remote controllable stream inoculation device for a large iron casting ladle according to the present invention;
FIG. 4 is a schematic structural diagram of a controller of a remote controllable stream inoculation device for a large iron casting ladle according to the present invention;
FIG. 5 is a schematic view showing another connection structure of a fixed perforated partition and a movable perforated partition according to the present invention;
in the figure: 1. a manual pouring device for the casting ladle; 2. a controller; 3. casting a ladle; 4. an inoculant hopper assembly; 5. a control line; 6. a temperature feedback line; 7. wire clamps; 8. a fixing member; 9. an inner housing; 901. a material storage cavity; 902. a discharge cavity; 10. a fixed clapboard with holes; 11. a movable partition plate with holes; 12. an electromagnetic relay; 13. a thermocouple; 14. a discharge port; 15. a refractory thermal insulation layer; 16. a protective housing; 17. an upper cover; 18. a hinge; 19. a snap fastener; 20. an L-shaped fixing frame; 21. a strip hole; 22. adjusting the bolt; 23. an n-shaped steel pipe; 24. tilting the cover plate; 25. a chute.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. 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 invention.
In the description of the present invention, it should be noted that the terms "middle", "upper", "lower", "left", "right", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
The first embodiment is as follows:
as shown in fig. 1-4, the remote controllable stream inoculation device for the large iron casting ladle comprises an inoculant hopper assembly 4 arranged above a ladle 3, and a controller 2 connected with the inoculant hopper assembly 4;
the inoculant hopper assembly 4 comprises an inner shell 9 with an opening at the upper part, the inner shell 9 is divided into a storage cavity 901 and a discharge cavity 902 by a fixed clapboard 10 with holes, one side of the fixed clapboard 10 with holes is tightly attached with a movable clapboard 11 with holes, and the movable clapboard 11 with holes moves relative to the fixed clapboard 10 with holes under the control of a control assembly, so that inoculant in the storage cavity 901 quantitatively enters the discharge cavity 902 and flows out through a discharge hole 14 on the discharge cavity 902;
the periphery of the inner shell 9 is covered with a fireproof heat-insulating layer 15 and is externally wrapped with a protective shell 16, an openable upper cover 17 is arranged above the protective shell 16, a thermocouple 13 is inserted into the side wall of the protective shell 16 positioned at one side of the discharging cavity 902, and the thermocouple 13 is also arranged below the inner shell 9; the protective shell 16 is arranged on a supporting steel pipe frame through an adjustable fixing support, and the supporting steel pipe frame is arranged above one side of the casting ladle 3 close to the casting nozzle;
the controller 2 is movably arranged at a position close to the manual pouring device 1 for the casting ladle, the controller 2 is connected with a control line 5 and a temperature feedback line 6, the control line 5 and the temperature feedback line 6 are respectively distributed and connected into the inoculant hopper assembly 4 along the inside of the supporting steel pipe frame, the control line 5 is connected with the control assembly, and the temperature feedback line 6 is respectively connected with the thermocouple 13.
The stream inoculation device properly solves the problem of controllable and timely addition of the inoculant under the condition of not increasing the labor intensity and the operation difficulty; by arranging the control assembly in the hopper and arranging the controller 2 near a pouring device (manual) of the ladle, an operator can operate the controller 2 by one hand while operating the ladle to incline by the other hand, so that the starting and stopping of the filling of the inoculant are realized, the accurate holding of the adding time is facilitated, the operation is very convenient, and the additional manual operation is reduced.
The fixed partition plate 10 with holes and the movable partition plate 11 with holes, which are closely arranged, can naturally divide the inner shell 9 into two chambers with different sizes, the storage cavity 901 is used for storing the inoculant, and the discharge cavity 902 is used as a discharge channel and can enable all the flowing inoculant to smoothly flow into molten iron; when the movable partition plate 11 with holes moves, the holes are completely blocked, partially blocked and completely communicated, so that stable outflow of inoculants with different amounts can be realized, the movable partition plate 11 with holes not only plays a role of blocking, but also plays a role of controlling the amount, and compared with other inoculation devices, the inoculation device with holes has the advantages of smaller force required to be opened, more convenience in use and better reliability.
The arrangement of the fire-resistant heat-insulating layer 15 can protect various components in the hopper from being affected by high-temperature baking, the service life of the components is guaranteed, and the running stability of the device is enhanced; the protective housing 16 can improve the overall strength and also can play a role in protection, so that the device is prevented from being damaged in the hoisting and installation process and is convenient to connect and install. The adjustable fixed support is adopted for connection and installation, so that the whole hopper can be adjusted in position, the discharge port can reach the optimal position, and the flowing inoculant can be favorably dissolved into molten iron; the supporting steel pipe frame is simple in structure, easy to install and use and convenient for laying of lines.
The thermocouples 13 are arranged at a plurality of positions inside and outside, so that the internal stability can be obtained in real time, the temperature monitoring is facilitated, and the damage of high temperature to internal components is avoided; the circuit is connected with the controller, so that signal receiving and transmission are smoother, and the influence of high-temperature radiation on signals is avoided.
Further, foraminiferous removal baffle 11 sets up in being close to one side of unloading chamber 902, foraminiferous removal baffle 11 with the hole on the foraminiferous fixed baffle 10 is the array setting and the size is the same, the interval between the adjacent hole with the diameter of hole is the same, foraminiferous removal baffle 11's removal scope value is not less than the diameter value of hole.
The movable partition plate 11 with the holes is arranged on one side far away from the material storage cavity 901, so that the frictional resistance of the stored inoculant to opening can be reduced, and the force required by opening and closing is reduced; such setting of hole diameter and interval guarantees on the one hand that the hole can play complete effect of blockking after staggering, and on the other hand does not need foraminiferous removal baffle carries out the removal of large distance.
Further, an inclined cover plate 24 is arranged above the discharging cavity 902, and the inclined cover plate 24 is inclined downwards to a position connected with the inner shell 9 to form the discharging hole 14; the thermocouple 13 is inserted into the space above the inclined cover plate 24.
The inclined cover plate 24 is arranged to form a space which is reduced towards the discharge hole 14 in the discharge cavity 902, so that the inoculant can be completely discharged, and the inoculant can be prevented from being left in the upper space after being inclined; when the casting ladle 3 is inclined, the inoculant hopper assembly 4 is also inclined, the discharge hole 14 is arranged to be provided with a notch at the lower part, and the inoculant can fall into a casting nozzle conveniently.
Further, the control assembly comprises a mounting bracket arranged on the inner side of the protective shell 16, a pair of electromagnetic relays 12 are arranged on the mounting bracket, and the electromagnetic relays 12 are connected with the upper end folded edge of the movable partition plate 11 with the holes; the electromagnetic relay 12 is connected to the control line 5.
The electromagnetic relay 12 is located on the inner housing 9, but still in the space covered by the protective outer housing 16 and the upper cover 17, so that the electromagnetic relay 12 can be protected; when the electromagnetic relay 12 is in an open state, the spring at the upper part of the movable partition plate with holes 11 is in a compressed state, and the movable partition plate with holes 11 moves to a position overlapped with the holes of the fixed partition plate with holes 10 under the action of the magnetic force of the electromagnetic relay 12, so that the inoculant flows out under the action of gravity; when the electromagnetic relay 12 is in a power-off state, the movable partition plate 11 with holes moves under the thrust action of a strong spring, so that the holes between the two partition plates are not overlapped, and the flowing-out of the inoculant is in a closed state.
Further, the fire-resistant heat-insulating layer 15 is made of fire-resistant heat-insulating cotton, and the protective shell 16 is formed by welding a plurality of heat-resistant plates; one side of the upper cover 17 is connected with the upper side wall of the protective shell 16 through a hinge 18, the other side of the upper cover is connected with the protective shell 16 through a snap 19, a handle is further arranged on the upper cover 17, and the height of the protective shell 16 is larger than that of the inner shell 9. The protective shell arranged in this way has good strength and is easy to open and close.
Further, the fixing support comprises L-shaped fixing frames 20 arranged on two sides of the protective casing 16, the bottom of each L-shaped fixing frame 20 is fixed on an n-shaped steel pipe 23 of the support steel pipe frame, a plurality of long holes 21 in a waist circular shape are formed in the side wall of each L-shaped fixing frame 20, and adjusting bolts 22 connected with the protective casing 16 are arranged in the long holes 21.
The adjustment of the discharge hole 14 is realized by adjusting the position of the protective housing 16 between the pair of L-shaped fixing frames 20, and the adjusting bolt 22 can perform locking and releasing operations.
Further, the supporting steel pipe frame comprises a pair of n-shaped steel pipes 23 arranged in parallel, the inoculant hopper assembly 4 is transversely arranged on the pair of n-shaped steel pipes 23, and the discharge hole 14 is positioned above the pouring nozzle; two ends of the n-shaped steel pipe 23 are respectively fixed on the periphery of the upper part of the casting ladle 3 through fixing pieces 8, the control line 5 and the temperature feedback line 6 are respectively led in from the port of the n-shaped steel pipe 23, and a plurality of lead holes are arranged at the connection part of the n-shaped steel pipe 23 and the protective shell 16; the periphery wall of the casting ladle 3 is also provided with a plurality of wire clamps 7.
The arrangement of the pair of n-shaped steel pipes 23 is simple and convenient, other parts cannot be influenced, the outflow of molten iron cannot be influenced, the hollow space of the steel pipes can be used for wiring, wiring harnesses cannot be entangled and disordered, the wiring harnesses are prevented from being exposed above the molten iron, and the excellent guiding and protecting effects on the wiring harnesses are achieved; the arrangement of the wire clamps is convenient for orderly leading the wire harnesses to the controller.
Further, the control line 5 and the temperature feedback line 6 are both mica high-temperature lines, and protective sleeves are wrapped on the peripheries of the control line 5 and the temperature feedback line 6 and are heat-resistant ceramic tubes; refractory heat insulation cotton is filled between the control line 5 and the temperature feedback line 6 and the inner circumference of the n-shaped steel pipe respectively, and the outer circumference of the n-shaped steel pipe is also coated with a heat-resistant coating.
The protective sleeve can protect the wires, both to prevent high temperatures and to enhance strength; the setting of heat-resisting coating can promote the high temperature resistant baking performance of n shape steel pipe, fire-resistant thermal-insulated cotton plays thermal-insulated effect on the one hand, has improved a flexible environment on the other hand, avoids pencil and the inner peripheral rigid friction of steel pipe.
Further, a rechargeable battery module, a temperature early warning module and a switch control module are also arranged in the controller 2, the temperature early warning module is connected with the battery module through the temperature feedback line 6, the thermocouple 13 is connected with the temperature early warning module, and the switch control module is connected with the electromagnetic relay 12 through the control line 5; the back of the shell of the controller 2 is also embedded with a rubidium magnet for adsorption, and the front of the controller 2 is provided with an operation panel and a display screen. The temperature early warning device can timely master whether the electrical component can normally work or not and timely make adjustment. And judging the working reliability of the control device before operating the remote controller according to the limit of the heat-resisting temperature of the electromagnetic component and the real-time temperature.
The controller is internally provided with a portable rechargeable battery, and the temperature early warning module and the switch control module supply power through the battery. The stream inoculation controller is located near the pouring ladle manual pouring device, and the rubidium magnet is adsorbed on a shell of a gearbox of the pouring device, so that the position can be moved, manual operation and control are facilitated, and remote filling and stopping of the inoculant are quickly realized.
When pouring is started, the manual pouring device 1 for the ladle in fig. 1 is shaken to enable molten iron in a ladle 3 to flow out, along with the gradual stabilization of the outflow speed of the molten iron, the manual pouring device 1 for the ladle is shaken while a stream inoculant filling opening button on the controller 2 is pressed, signals are transmitted through the control line 5 to enable the electromagnetic relay 12 to be electrified, so that the movable partition plate 11 with holes moves upwards, then the holes in the movable partition plate 11 with holes are overlapped with the inoculation holes in the fixed partition plate 10 with holes, and the inoculant in the material storage cavity flows out. When the inoculant stably flows out until the casting body is poured and enters a feeding state, a stream-following inoculant filling closing button is pressed, so that the electromagnetic relay 12 is powered off, the movable partition plate 11 with holes moves downwards under the action of a spring, and then the holes in the movable partition plate 11 with holes and the holes in the fixed partition plate 10 with holes are staggered, so that the inoculant in the storage cavity stops flowing out. And the operator judges whether electrical components such as the electromagnet and the like work normally or not through the temperatures displayed by the controller 2.
Example two:
the difference between the embodiment and the first embodiment is that another connecting structure of the movable partition plate with the hole is provided.
As shown in fig. 5, a pair of sliding grooves 25 are formed on the inner wall of the inner housing 9, both sides of the movable partition 11 with holes are respectively engaged in the sliding grooves 25, and balls for assisting movement may be further provided in the sliding grooves 25. The arrangement is convenient for the up-and-down movement of the movable clapboard with holes 11, and simultaneously has a limiting effect on the movable clapboard with holes 11 and avoids the movable clapboard with holes from being far away from the fixed clapboard with holes 10.
Example three:
this embodiment provides another control method.
The controller 2 is also internally provided with a communication module, the communication module is connected with an external mobile terminal, and a display and control program is preset in the mobile terminal.
For the ladle with the inclination controlled electrically, the remote control by adopting the mobile terminal is more convenient and safer.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. A remote controllable stream inoculation device for a large iron casting ladle is characterized by comprising an inoculant hopper assembly arranged above the casting ladle and a controller connected with the inoculant hopper assembly;
the inoculant hopper assembly comprises an inner shell with an opening at the upper part, the inner part of the inner shell is divided into a storage cavity and a discharge cavity by a fixed partition plate with holes, one side of the fixed partition plate with holes is tightly attached with a movable partition plate with holes, and the movable partition plate with holes moves relative to the fixed partition plate with holes under the control of a control assembly, so that inoculant in the storage cavity quantitatively enters the discharge cavity and flows out through a discharge hole in the discharge cavity;
the periphery of the inner shell is covered with a fireproof heat-insulating layer and is wrapped with a protective shell, an openable upper cover is arranged above the protective shell, a thermocouple is inserted into the side wall of the protective shell on one side of the discharging cavity, and a thermocouple is also arranged below the inner shell; the protective shell is arranged on a supporting steel pipe frame through an adjustable fixing support, and the supporting steel pipe frame is arranged above one side of the casting ladle close to the casting nozzle;
the controller is movably arranged at a pouring control device close to the casting ladle, the controller is at least connected with a control line and a temperature feedback line, the control line and the temperature feedback line are respectively distributed and connected into the inoculant hopper assembly along the inside of the supporting steel pipe frame, the control line is connected with the control assembly, and the temperature feedback line is respectively connected with the thermocouple.
2. The remote controllable stream inoculation device for large iron casting ladles according to claim 1, wherein the movable partition plate with holes is arranged at one side close to the discharge cavity, the holes on the movable partition plate with holes and the fixed partition plate with holes are arranged in an array and have the same size, the distance between adjacent holes is not less than the diameter of the holes, and the moving range value of the movable partition plate with holes is not less than the diameter value of the holes.
3. The remote controllable stream inoculation device for large iron casting ladles according to claim 1, wherein an inclined cover plate is arranged above the discharge cavity, and the inclined cover plate is inclined downwards to a position where the inclined cover plate is connected with the inner shell to form the discharge hole; the thermocouple is inserted into the space above the inclined cover plate.
4. The remote controllable stream inoculation apparatus for large iron casting ladles according to claim 1, wherein said control assembly comprises a mounting bracket disposed inside said protective enclosure, said mounting bracket having a pair of electromagnetic relays attached thereto, said electromagnetic relays being connected to the upper end of said movable partition plate with holes; the electromagnetic relay is connected with the control line.
5. The remote controllable stream inoculation apparatus for large iron casting ladles as claimed in claim 1, wherein said refractory heat insulating layer is a refractory heat insulating cotton and said protective shell is made of a plurality of heat resistant plates by welding; one side of the upper cover is connected with the upper side wall of the protective shell through a hinge, the other side of the upper cover is connected with the protective shell through a snap fastener, a handle is further arranged on the upper cover, and the height of the protective shell is larger than that of the inner shell.
6. The remote controllable stream inoculation device for the large iron casting ladle according to claim 1, wherein the fixing bracket comprises L-shaped fixing brackets arranged at two sides of the protective shell, the bottom of each L-shaped fixing bracket is fixed on the supporting steel pipe frame, a plurality of waist-round strip holes are arranged on the side wall of each L-shaped fixing bracket, and adjusting bolts connected with the protective shell are arranged in the strip holes.
7. The remote controllable stream inoculation apparatus for large iron casting ladles as claimed in claim 1 wherein said supporting steel tube frame comprises a pair of parallel n-shaped steel tubes, said inoculant hopper assembly is transversely disposed on said pair of n-shaped steel tubes and said discharge outlet is located above said nozzle; the two ends of the n-shaped steel pipe are respectively fixed on the periphery of the upper part of the casting ladle through fixing pieces, the control line and the temperature feedback line are respectively led in from the port of the n-shaped steel pipe, and a plurality of lead holes are formed in the connection part of the n-shaped steel pipe and the protective shell; the outer peripheral wall of the casting ladle is also provided with a plurality of wire clamps.
8. The remote controllable stream inoculation device for the large iron casting ladle according to claim 1, wherein the control line and the temperature feedback line are both mica high temperature lines, and the peripheries of the control line and the temperature feedback line are both wrapped with protective sleeves, and the protective sleeves are heat-resistant ceramic tubes; fireproof heat insulation cotton is filled between the control line and the inner periphery of the support steel pipe frame and between the temperature feedback line and the inner periphery of the support steel pipe frame, and the outer periphery of the support steel pipe frame is also coated with a heat-resistant coating.
9. The remote controllable stream inoculation device for large iron casting ladles according to claim 1, wherein a rechargeable battery module, a temperature early warning module and a switch control module are further arranged in the controller, the temperature early warning module is connected with the thermocouple through the temperature feedback line, and the switch control module is connected with the control assembly through the control line; the back of the shell of the controller is also embedded with a rubidium magnet for adsorption, and the front of the controller is provided with an operation panel and a display screen.
10. The remote controllable stream inoculation device for the large iron casting ladle according to claim 1, wherein a communication module is further arranged in the controller, the communication module is connected with an external mobile terminal, and an APP for display and control is preset in the mobile terminal.
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| CN202111161251.4A CN113976840B (en) | 2021-09-30 | 2021-09-30 | Long-distance controllable stream inoculation device for large iron casting ladle |
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| CN113976840B CN113976840B (en) | 2022-12-23 |
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| CN113976840B (en) | 2022-12-23 |
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