CN112853037B - Molten iron charging assembly line - Google Patents
Molten iron charging assembly line Download PDFInfo
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- CN112853037B CN112853037B CN202011635291.3A CN202011635291A CN112853037B CN 112853037 B CN112853037 B CN 112853037B CN 202011635291 A CN202011635291 A CN 202011635291A CN 112853037 B CN112853037 B CN 112853037B
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- iron
- ladle
- tipping
- charging
- lifting
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/52—Manufacture of steel in electric furnaces
- C21C5/527—Charging of the electric furnace
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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
- B22D41/06—Equipment for tilting
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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
- B22D41/12—Travelling ladles or similar containers; Cars for ladles
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
Abstract
The invention provides a molten iron hot metal charging assembly line, which belongs to the technical field of molten iron transportation and comprises a hot metal supply system, a tipping system, a hot metal receiving system, a lifting system, a double-ladle-position tipping hot metal charging system, a slag removing system, an electric furnace system and a control system, wherein the double-ladle-position tipping hot metal charging system is provided with a first ladle position for accommodating a hot metal ladle and a second ladle position for accommodating an empty ladle. The molten iron charging assembly line provided by the invention is formed by the iron supply system, the tipping system, the iron receiving system, the lifting system, the double-ladle-position tipping iron charging system, the slag removing system, the electric furnace system and the control system, so that the automatic control iron charging assembly line can realize the automatic operation of the whole iron charging process, save manpower and material resources, avoid potential safety hazards in overhead lifting, and meanwhile, the double-ladle-position tipping iron charging system has the first ladle position and the second ladle position, and can simultaneously carry out molten iron supplying operation for the iron receiving system and molten iron dumping operation for the electric furnace system through the transfer function of the lifting system, thereby improving the working efficiency.
Description
Technical Field
The invention belongs to the technical field of molten iron transportation, and particularly relates to a molten iron charging assembly line.
Background
In the metal smelting process, a crown block ladle iron-receiving and iron-adding mode is generally adopted for adding blast furnace molten iron in a molten iron tank into an electric furnace, specifically, a crown block worker operates a crown block to hoist a molten iron ladle to the molten iron tank, the molten iron tank is tipped to enable the molten iron to be added into the molten iron ladle, and then the crown block hoists the molten iron ladle to the corresponding electric furnace for iron adding, however, the iron-adding mode has potential safety hazards of high-altitude hoisting of the molten iron, and a plurality of workers are required to be configured to complete the whole iron-adding process.
Disclosure of Invention
The invention aims to provide a molten iron charging assembly line, and aims to solve the technical problems of potential safety hazards and large number of required workers in the traditional high-altitude hoisting of molten iron.
In order to achieve the purpose, the invention adopts the technical scheme that: the molten iron hot metal charging assembly line comprises an iron supply system, a tipping system, an iron receiving system, a lifting system, a double-ladle-position tipping hot metal charging system, a slag skimming system, an electric furnace system and a control system, wherein the double-ladle-position tipping hot metal charging system is provided with a first ladle position for accommodating a molten iron ladle and a second ladle position for accommodating an empty ladle;
the iron supply system is used for providing molten iron for the iron receiving system, the tipping system is used for enabling the iron supply system to dump the molten iron to the iron receiving system, the iron receiving system is used for exchanging a ladle and an empty ladle with the double-ladle-position tipping and iron adding system, the lifting system is used for enabling the ladle in the iron receiving system to be transferred to the first ladle position and enabling the empty ladle in the second ladle position to be transferred to the iron receiving system, the double-ladle-position tipping and iron adding system is used for adding the molten iron to the electric furnace system, and the slag skimming system is used for skimming the ladle in the first ladle position;
the control system is in communication connection with the iron supply system, the tipping system, the iron receiving system, the double-ladle-position tipping and iron charging system, the lifting system, the slag skimming system and the electric furnace system and is used for controlling the working state of the whole system.
Further, the iron supply system includes: a first track; the molten iron transport vehicle is movably arranged on the first track; and the molten iron tank is arranged on the molten iron transport vehicle.
Further, the tip-over system comprises: a tilting mechanism disposed adjacent to the iron supply system; and the limiting frame is arranged between the tilting mechanism and the iron receiving system and used for limiting the tilting degree of the iron supply system.
Further, the iron-receiving system includes: the second rail is connected with the iron supply system; the iron-receiving flat car is movably arranged on the second track; and the iron receiving ladle is arranged on the iron receiving flat car and can be transferred between the iron receiving flat car and the double-ladle-position tipping iron charging system, when the iron receiving ladle contains molten iron, the iron receiving ladle is defined as the ladle, and when the iron receiving ladle does not contain molten iron, the iron receiving ladle is defined as the empty ladle.
Further, the lifting system comprises: the lifting frame is arranged between the iron supply system and the double-ladle-position tipping iron charging system; the lifting mechanism is arranged on the lifting frame and can lift along the height direction of the lifting frame and horizontally move; and the lifting hook is arranged at the bottom of the lifting mechanism and used for hooking the ladle or the empty ladle.
Further, the two-ladle-position tipping and iron charging system comprises: the third rail extends from the lifting system to the electric furnace system; the iron adding flat wagon is movably arranged on the third track and is provided with the first wrapping position and the second wrapping position; and the two turnover mechanisms are correspondingly arranged at the first pack position and the second pack position.
Further, the turnover mechanism includes: the hydraulic cylinder is arranged on the hot metal charging flat car; and the overturning frame body is connected with the hydraulic cylinder and used for clamping the ladle so as to tip the ladle.
Further, the turning frame body includes: the fixing frame is fixed on the iron charging flat wagon; the middle frame is hinged to the fixed frame and is connected with the hydraulic cylinder; and the rotating frame is fixed on the middle frame and is provided with a clamping groove for clamping the ladle.
Furthermore, the molten iron hot metal charging assembly line further comprises one or more of a monitoring system, a sensor system, a positioning system and a self-locking system which are in communication connection with the control system;
the monitoring system is used for monitoring the working conditions of the iron supply system, the tipping system, the iron receiving system, the double-ladle-position tipping and iron charging system, the lifting system, the slag skimming system and the electric furnace system;
the sensor system is used for detecting the working conditions of the iron supply system, the tipping system, the iron receiving system, the double-ladle-position tipping and iron adding system, the lifting system, the slag skimming system and the electric furnace system;
the positioning system is used for confirming the position information of the iron supply system, the tipping system, the iron receiving system, the double-ladle-position tipping and iron adding system, the lifting system, the slag skimming system and the electric furnace system;
the self-locking system is used for enabling the corresponding systems to realize self-locking after the iron supply system, the tipping system, the iron receiving system, the double-ladle-position tipping iron charging system, the lifting system and the slag skimming system confirm position information.
Further, the molten iron charging assembly line further comprises a closed cover, and the closed cover at least partially seals the iron supply system, the tipping system, the iron receiving system, the double-ladle-position tipping charging system, the lifting system, the slag skimming system and the electric furnace system.
The molten iron charging assembly line provided by the invention at least has the following technical effects: compared with the prior art, the molten iron charging assembly line provided by the invention has the advantages that the iron supply system, the tipping system, the iron receiving system, the lifting system, the double-ladle-position tipping iron charging system, the slag removing system, the electric furnace system and the control system form the automatic control iron charging assembly line, the automatic operation of the whole iron charging process can be realized, the manpower and the material resources are saved, the potential safety hazard existing in overhead hoisting is avoided, the safety is higher, meanwhile, the double-ladle-position tipping iron charging system has the first ladle position and the second ladle position, the molten iron operation provided for the iron receiving system and the molten iron dumping operation for the electric furnace system can be simultaneously carried out through the transfer function of the lifting system, the time interval is reduced, and the working efficiency is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic structural view of a molten iron hot metal charging line according to an embodiment of the present invention;
FIG. 2 is a side view schematically illustrating a hot metal charging line according to an embodiment of the present invention;
FIG. 3 is a schematic top view of a hot metal charging line according to an embodiment of the present invention;
FIG. 4 is an overall schematic view of a hot metal charging line according to an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of an iron supply system according to an embodiment of the present invention;
FIG. 6 is a schematic structural diagram of a tie-down system according to an embodiment of the present invention;
fig. 7 is a schematic structural view of a double-ladle-position tipping iron mixing system in an embodiment of the invention.
In the figure:
100. molten iron charging assembly line 110, iron supply system 112 and first track
114. Molten iron carrier 116, molten iron tank 118, first handle
120. Tipping system 122, tipping mechanism 124 and limit frame
130. Iron receiving system 132, second track 134 and iron receiving flat car
136. Iron receiving bag 138, second handle 140 and lifting system
142. Lifting frame 144, lifting mechanism 146 and lifting hook
150. Double-ladle-position tipping and iron-charging system 151, first ladle position 152 and second ladle position
153. Third track 154, iron charging flat wagon 155 and turnover mechanism
156. Hydraulic cylinder 157, turnover frame 158 and fixed frame
159. Middle frame 161, rotating frame 162 and clamping groove
170. Slag-raking system 180, electric furnace system 190 and control system
210. Monitoring system 220, sensor system 230, positioning system
240. Self-locking system 250, enclosure
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When an element is referred to as being "disposed on," "disposed on" another element, it can be directly on the other element or intervening elements may also be present. "plurality" and "a plurality" refer to two or more numbers.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
Referring to fig. 1 to 7 together, a molten iron charging line 100 according to an embodiment of the present invention will now be described. It will be appreciated that the molten iron charging line 100 is particularly applicable to a ductile iron smelting electric furnace scenario, as well as to a similar electric furnace charging scenario.
Referring to fig. 1 to 4, an embodiment of the present invention provides a molten iron hot-metal charging line 100, which includes an iron supply system 110, a tilting system 120, an iron receiving system 130, a lifting system 140, a double-ladle-position tilting hot-metal charging system 150, a slag skimming system 170, an electric furnace system 180, and a control system 190, wherein the double-ladle-position tilting hot-metal charging system 150 has a first ladle position 151 for accommodating a hot metal ladle and a second ladle position 152 for accommodating an empty ladle.
The iron supply system 110 is used for supplying molten iron to the iron receiving system 130, the tipping system 120 is used for enabling the iron supply system 110 to tip the molten iron to the iron receiving system 130, the iron receiving system 130 is used for exchanging ladles and empty ladles with the double ladle position tipping iron mixing system 150, the lifting system 140 is used for enabling the ladles in the iron receiving system 130 to be transferred to a first ladle position 151 and enabling the empty ladles in a second ladle position 152 to be transferred to the iron receiving system 130, the double ladle position tipping iron mixing system 150 is used for mixing the molten iron to the electric furnace system 180, and the slag skimming system 170 is used for skimming the slag of the ladles in the first ladle position 151; the control system 190 is in communication connection with the iron supply system 110, the tipping system 120, the iron receiving system 130, the double-ladle-position tipping iron charging system 150, the lifting system 140, the slag skimming system 170 and the electric furnace system 180, and is used for controlling the working state of the whole system.
It should be noted that the tapping system 130 includes a tapping ladle 136, the tapping ladle 136 is tapped into a ladle from the hot metal supply system 110, and can be transferred to the double ladle position tilting and charging system 150 by the hoist system 140 and charged with hot metal into the electric furnace system 180, and the ladle becomes an empty ladle after completing the operation of charging the hot metal into the electric furnace system 180, and can be transferred to the tapping system 130 by the hoist system 140 to continue tapping the hot metal from the hot metal supply system 110. The first and second bits 151 and 152 may be interchanged in the process of swapping the ladle and the empty packet. When the first ladle position 151 is loaded with the ladles and conveyed to the electric furnace system 180, the second ladle position 152 is vacant, when the ladles are turned into the empty ladles after being tipped over, the original first ladle position 151 is changed into the second ladle position 152, the original second ladle position 152 is changed into the first ladle position 151 and loaded with new ladles by the lifting system 140, the empty ladles at the second ladle position 152 are moved to the ladle receiving system 130 by the lifting system 140 and are connected with the molten iron again, and the operation is alternately repeated, so that the transfer efficiency can be improved. That is, in the entire system, there are two ladles 136 for transfer work.
In this embodiment, the slag-raking system 170 may be a slag-raking machine, or may be another mechanical structure having a slag-raking function, the electric furnace system 180 includes a plurality of electric furnaces arranged in sequence, and the double-ladle-position tipping and hot metal charging system 150 is capable of charging molten iron into the corresponding electric furnace according to actual requirements. The control system 190 is specifically composed of a processing chip, a comparator and other components, has functions of input, control, analysis, processing, output and the like, can be an upper computer, a lower computer and the like which are integrated to form a central control room, and can control position information, weight information, angle information and the like. The communication connection may be understood as a wired or wireless manner, and a circuit connection manner is encompassed.
The specific operation flow of the molten iron hot metal charging assembly line 100 is as follows: the iron supply system 110 moves to the tipping system 120, the iron receiving system 130 is aligned with the iron supply system 110, the tipping system 120 enables the iron supply system 110 to tip over and dump molten iron into the iron receiving system 130, after or at the same time of resetting the iron supply system 110 and the tipping system 120, the lifting system 140 transfers a ladle in the iron receiving system 130 to a first ladle position 151 in the double-ladle position tipping iron charging system 150 and transfers an empty ladle in a second ladle position 152 in the double-ladle position tipping iron charging system 150 to the iron receiving system 130, the double-ladle position tipping iron charging system 150 moves to the slag skimming system 170 to perform slag skimming, after the slag skimming is completed, the double-ladle position tipping iron charging system 150 moves to the electric furnace system 180 to mix the molten iron, and meanwhile, the iron receiving system 130, the iron supply system 110 and the tipping system 120 can synchronously continue to operate.
The molten iron charging assembly line 100 provided by the invention at least has the following technical effects: compared with the prior art, the molten iron charging assembly line 100 provided by the invention has the advantages that the iron supply system 110, the tipping system 120, the iron receiving system 130, the lifting system 140, the double-ladle-position tipping iron charging system 150, the slag skimming system 170, the electric furnace system 180 and the control system 190 form an automatic control iron charging assembly line, the automatic operation of the whole iron charging process can be realized, the manpower and the material resources are saved, the potential safety hazard existing in overhead hoisting is avoided, the safety is higher, meanwhile, the double-ladle-position tipping iron charging system 150 is provided with the first ladle position 151 and the second ladle position 152, the molten iron operation provided for the iron receiving system 130 and the molten iron dumping operation for the electric furnace system 180 can be simultaneously carried out through the transfer function of the lifting system 140, the time interval is reduced, and the operation efficiency is improved.
Referring to fig. 1 to 3 and 5, the iron supply system 110 includes: a first track 112; a molten iron carrier vehicle 114 movably disposed on the first rail 112; and a hot metal ladle 116 provided to the hot metal carrier 114. In this embodiment, the molten iron carrier 114 and the first rail 112 are guided by rolling or sliding, so that the molten iron tank 116 can be transported to the tipping system 120 and aligned with the iron receiving system 130, so that the molten iron in the molten iron tank 116 can be poured into the iron receiving ladle 136. A first handle 118 is provided on the outside wall of the ladle 116 to facilitate a tipping operation in cooperation with a tipping system 120.
Without limitation to the specific composition of the tip-over system 120, the tip-over system 120 includes: a tipping mechanism 122 disposed adjacent to the iron supply system 110; and a limiting frame 124, which is arranged between the tilting mechanism 122 and the iron receiving system 130, and is used for limiting the tilting degree of the iron supply system 110. In this embodiment, the tilting mechanism 122 specifically includes a driving member such as a motor and a cylinder, and a clamping member such as a hook and a hanging ring, the driving member is in communication connection with the control system 190 to drive the clamping member to clamp the hot metal ladle 116 to tilt or reset, and the clamping member is specifically matched with the first handle 118. The stopper 124 can limit the tilting angle and the tilting distance of the hot metal ladle 116, thereby preventing the occurrence of the tilting phenomenon. In practical applications, the tilting mechanism 122 may be a tilting iron winch to achieve the tilting function.
Referring to fig. 1 to 3 and fig. 6, the iron-receiving system 130 includes, as an embodiment: a second rail 132 connected to the iron supply system 110; the iron receiving flat wagon 134 is movably arranged on the second rail 132; and a ladle 136 disposed on the ladle receiving platform 134 and capable of being transferred between the ladle receiving platform 134 and the double-ladle-position tipping and charging system 150, wherein the ladle is defined as a ladle when the ladle 136 contains molten iron, and the empty ladle is defined as an empty ladle when the ladle 136 does not contain molten iron. In this embodiment, the guiding cooperation between the iron receiving flatcar 134 and the second rail 132 is realized in a rolling or sliding manner, so that the position of the iron receiving flatcar 134 relative to the iron supply system 110 and the lifting system 140 can be finely adjusted. The ladle receiving 136 is movably arranged on the ladle receiving flat car 134, is defined as a ladle when the ladle receiving 136 contains molten iron, and is defined as an empty ladle when the ladle receiving 136 does not contain molten iron, can be connected into the molten iron of the iron supply system 110 and transferred into the double ladle position tipping and iron charging system 150, and can also be transferred from the double ladle position tipping and iron charging system 150 to the iron receiving system 130 to continue to be connected into the molten iron.
Herein, the docking of the ladle 136 is not distinguished in detail, and it is understood that the ladle 136 has two states of use, namely, a ladle and an empty ladle, and is used only for distinguishing during the transfer of the ladle 136, i.e., transferring the ladle from the ladle position tilting and charging system 130 to the double ladle position tilting and charging system 150 and transferring the empty ladle from the double ladle position tilting and charging system 150 to the ladle position charging system 130. A second handle 138 is provided on the outer wall of the pick-up ladle 136 to facilitate hooking of the lifting system 140 and tipping during incorporation into the electric furnace system 180.
Referring to fig. 1 to 3, the specific components of the lifting system 140 are not limited, and as an embodiment, the lifting system 140 includes: a lifting frame 142 arranged between the iron supply system 110 and the double-ladle-position tipping iron charging system 150; a lifting mechanism 144 provided on the lifting frame 142 and capable of lifting in the height direction and horizontally moving along the lifting frame 142; and a hook 146 provided at the bottom of the lifting mechanism 144 for hooking the ladle or the empty ladle. In this embodiment, the lifting frame 142 is used for carrying the lifting mechanism 144 and also for constructing a three-dimensional space so that the ladle can be transferred in the height direction. The lifting frame 142 may be provided with a height rail and a horizontal rail to enable the lifting mechanism 144 to be guided in the height direction and the horizontal direction, or the lifting mechanism 144 itself may be structured to include the height rail and/or the horizontal rail. The hook 146 is positioned relative to the second handle 138 of the ladle or empty ladle and is sized to hook the ladle from the hot metal pick-up system 130 to the double-ladle-position tip hot metal system 150 and to hook the empty ladle from the double-ladle-position tip hot metal system 150 to the hot metal pick-up system 130. In practice, the lifting mechanism 144 and the hook 146 may be combined together to form a lifting machine, which is capable of performing a lifting function.
Referring to fig. 1, 3 and 7, the specific composition of the double-ladle-position tilting iron charging system 150 is not limited, and as an embodiment, the double-ladle-position tilting iron charging system 150 includes: a third rail 153 extending from the lifting system 140 to the electric furnace system 180; a hot metal charging flat carriage 154 movably arranged on a third track 153 and provided with a first packing position 151 and a second packing position 152; and two turnover mechanisms 155 correspondingly disposed at the first pack position 151 and the second pack position 152. In this embodiment, the third rail 153 specifically extends from the lower side of the lifting mechanism 144 to the range where the electric furnace system 180 is located, and the hot metal charging flat wagon 154 can load the hot metal ladles and move from the lower side of the lifting mechanism 144 to the electric furnace system 180, so as to charge the plurality of electric furnaces in the electric furnace system 180 with the hot metal. The iron adding flat wagon 154 and the third rail 153 are in guiding fit in a rolling or sliding mode. First package position 151 and second package position 152 all are equipped with tilting mechanism 155, and tilting mechanism 155 and control system 190 communication connection can realize automated control for the ladle that makes corresponding package position tumbles, thereby makes the molten iron convert into in the electric stove.
It will be appreciated that the hot iron flat carriage 154 has a first ladle position 151 and a second ladle position 152, and that the first ladle position 151 and the second ladle position 152 may be interchanged in the process of exchanging ladles and empty ladles. When the first ladle position 151 is loaded with the ladle and conveyed to the electric furnace system 180, the second ladle position 152 is vacant, when the ladle is turned over to be an empty ladle, the first ladle position 151 is changed to be the second ladle position 152, the first ladle position 152 is changed to be the first ladle position 151, the lifting system 140 is loaded with a new ladle, the empty ladle in the second ladle position 152 is moved to the ladle receiving system 130 by the lifting system 140, the molten iron is accessed again, and the operation is alternately repeated.
Further, the turnover mechanism 155 includes: a hydraulic cylinder 156 provided on the hot metal charging carriage 154; and a tilting frame body 157 connected to the hydraulic cylinder 156 for holding the ladle to tilt the ladle. In this embodiment, the turning mechanism 155 is provided in pairs corresponding to the same ladle position, so that the ladle can be more stably and reliably tipped. Hydraulic cylinder 156 is secured to hot metal charging carriage 154 and is in communication with control system 190. When the ladle is loaded to the hot metal charging flat car 154, the ladle is limited in a limiting space formed by the overturning frame body 157, when the hydraulic cylinder 156 is lifted, the overturning frame body 157 drives the ladle to rotate so as to overturn, and when the hydraulic cylinder 156 is retracted, the overturning frame body 157 drives the ladle to rotate so as to reset.
Further, the turning frame body 157 includes: a fixed frame 158 fixed to the hot metal charging flat carriage 154; an intermediate frame 159 hinged to the fixed frame 158 and connected to the hydraulic cylinder 156; and a rotating frame 161 fixed on the middle frame 159 and having a clamping groove 162 for clamping the ladle. In this embodiment, the fixed frame 158, the intermediate frame 159, the rotating frame 161 and the hydraulic cylinder 156 form a link structure, and the rotating frame 161 can rotate under the action of the hydraulic cylinder 156, so as to tip or reset the ladle. The ladle has second handle 138, and swivel mount 161 has screens groove 162 correspondingly, and screens groove 162 can be spacing second handle 138 within certain tipping angle, guarantees not to deviate from in the tipping process. There is no limitation in the number of the second handle 138 and the catching groove 162, for example, one, two, three, etc.
In order to achieve a high degree of automation of the hot metal charging line 100, referring to fig. 4, as an embodiment, the hot metal charging line 100 further includes one or more of a monitoring system 210, a sensor system 220, a positioning system 230, and a self-locking system 240, which are in communication with the control system 190. It is understood that the hot metal charging line 100 may further include other intelligent control modules, and the above systems and the control system 190 are all in communication connection in a wired or wireless manner.
The monitoring system 210 is used for monitoring the working conditions of the iron supply system 110, the tipping system 120, the iron receiving system 130, the double-ladle-position tipping iron charging system 150, the lifting system 140, the slag skimming system 170 and the electric furnace system 180. In this embodiment, the monitoring system 210 may be specifically an image acquisition device such as a camera or a video camera, so as to monitor the working condition of the whole assembly line in real time, and when an accident occurs, the working condition can be fed back to the control system 190, and an alarm system is used to remind an operator to take measures in time.
The sensor system 220 is used for detecting the working conditions of the iron supply system 110, the tipping system 120, the iron receiving system 130, the double-ladle-position tipping and iron charging system 150, the lifting system 140, the slag skimming system 170 and the electric furnace system 180. In this embodiment, the sensor system 220 may specifically include a plurality of types such as a displacement sensor, an angle sensor, a pressure sensor, and the like, and may correspond to the iron supply system 110, the tipping system 120, the iron receiving system 130, the double-ladle-position tipping iron charging system 150, the lifting system 140, the slag skimming system 170, and the electric furnace system 180 according to actual detection requirements. For example, angle sensors are provided in the tipping system 120, the double-ladle-position tipping hot-metal charging system 150, and the slag skimming system 170 to detect the current inclination angle; displacement sensors are arranged in the iron supply system 110, the iron receiving system 130, the lifting system 140 and the electric furnace system 180 to detect the current position; pressure sensors are provided in the pick-up system 130 and the double-station tipping iron charging system 150 to detect the current ladle weight. Of course, the above description is merely illustrative, and different types of sensors may be configured according to actual requirements. When the sensor system 220 detects the corresponding parameter, it can feed back to the control system 190, thereby controlling the working state of the corresponding system.
The positioning system 230 is used to confirm the position information of the iron supply system 110, the tipping system 120, the iron receiving system 130, the double-ladle-position tipping iron charging system 150, the lifting system 140, the slag skimming system 170 and the electric furnace system 180. In this embodiment, the positioning system 230 may specifically be a GPS positioning module, a beidou positioning module, or the like, and in practical applications, the operation tracks and the operation positions of the systems may be preset in the positioning system 230, and according to the actual positioning information, whether the systems operate in the predetermined tracks and the predetermined positions is determined, and the information is timely fed back to the control system 190, so as to adjust and control the position information of the corresponding systems.
The self-locking system 240 is used for enabling the corresponding systems to realize self-locking after the iron supply system 110, the tipping system 120, the iron receiving system 130, the double-ladle-position tipping iron charging system 150, the lifting system 140 and the slag skimming system 170 confirm the position information. In this embodiment, the self-locking system 240 may specifically be a mechanical structure such as a lock ring, a claw, a limit stop, and the like, and is driven by a motor, an air cylinder, and the like, and the motor, the air cylinder, and the like are communicatively connected to the control system 190, so as to implement an automatic locking operation. It is understood that locking structures may be provided in the iron supply system 110, the tipping system 120, the iron receiving system 130, the double-position tipping iron charging system 150, the lifting system 140, and the slag skimming system 170, to form the self-locking system 240. After the positioning system 230 confirms the position information of the corresponding system, the control system 190 controls the self-locking system 240 to realize the self-locking function, so as to ensure the stability and reliability of the corresponding system.
In order to improve the safety of the melting and hot metal charging area, referring to fig. 2 and 3, as an embodiment, the molten iron hot metal charging line 100 further includes a closing cover 250, and the closing cover 250 at least partially closes the iron supply system 110, the tipping system 120, the iron receiving system 130, the double-ladle-position tipping hot metal charging system 150, the lifting system 140, the slag skimming system 170, and the electric furnace system 180. In this embodiment, the enclosing cover 250 is arranged on the periphery of the assembly line formed by the systems, and the enclosing cover 250 can cover the height of the assembly line with a certain height, so that the smelting area is separated from the operators, the smelting area is in a semi-closed or fully-closed state, the dust removal effect of the smelting area is realized, and the safety of the whole operation flow is improved. It will be appreciated that for simplicity of illustration, fig. 2 and 3 illustrate only the presence of the closure 250 and are not limiting as to the scope covered thereby.
On the basis of the above embodiment, the specific operation flow of the molten iron charging line 100 is as follows: when the molten iron transporting vehicle 114 transports the molten iron tank 116 to be positioned, the central control room sends an instruction, the iron receiving flat vehicle 134 moves to be close to the molten iron tank 116, when the iron receiving flat vehicle 134 is detected to be in place and has the iron receiving ladle 136, the iron turning winch and the iron receiving flat vehicle 134 communicate information, the iron receiving flat vehicle 134 is self-locked, the iron turning winch starts to hook, the molten iron tank 116 starts to be lifted according to a specified program and speed, and molten iron is poured to the iron receiving ladle 136. When the weight of the iron receiving flat wagon 134 reaches a set weight, a signal for stopping pouring molten iron is sent, the iron turning winch returns the molten iron tank 116, and the iron receiving flat wagon 134 automatically translates to a specified position, generally right below the hoister. After the iron receiving flat car 134 is positioned, the iron receiving flat car 134 performs information confirmation with a lifting machine, the iron receiving flat car 134 is self-locked, the lifting machine starts to hoist a ladle according to a specified program, after a sensor in the lifting machine detects and confirms a hook, the lifting machine starts to lift to a preset height and translate to a position right above the iron adding flat car 154, positioning information communication is completed between the iron adding flat car 154 and the lifting machine, the iron adding flat car 154 and the lifting machine are locked mutually, the lifting machine puts the ladle to a first containing position 151, the iron adding flat car 154 moves, a second containing position 152 is moved to a position right below the lifting machine, the lifting machine lifts an empty ladle and moves to a descending position, the empty ladle is put back to the iron receiving flat car 134, the lifting machine resets, the iron receiving flat car 134 is parked at the side of the iron ladle 116, and instructions are waited. And after the information that the hoister leaves is confirmed, the hot metal charging flat car 154 is moved to the slag raking machine, and after the slag raking machine is inclined to a set angle, a signal is sent to the slag raking machine, the slag raking machine automatically skims slag, and after the slag raking machine finishes, a signal is fed back to the hot metal charging flat car 154, the hot metal ladle is reset, and after the reset, the hot metal charging flat car is moved to the electric furnace to be charged with hot metal. And (4) tipping the ladle to add iron according to a given signal of the electric furnace, and resetting the ladle after the required amount is reached. When the electric furnace signal is received again, the above operation is repeated. After all the molten iron is added, the iron adding flat car 154 is reset and reaches a station which can be lifted by the lifter.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (9)
1. The molten iron hot metal charging assembly line is characterized by comprising an iron supply system, a tipping system, an iron receiving system, a lifting system, a double-ladle-position tipping hot metal charging system, a slag skimming system, an electric furnace system and a control system, wherein the double-ladle-position tipping hot metal charging system is provided with a first ladle position for accommodating a molten iron ladle and a second ladle position for accommodating an empty ladle;
the iron supply system is used for providing molten iron for the iron receiving system, the tipping system is used for enabling the iron supply system to pour the molten iron to the iron receiving system, the iron receiving system is used for exchanging a ladle and an empty ladle with the double-ladle position tipping and iron adding system, the lifting system is used for enabling the ladle in the iron receiving system to be transferred to the first ladle position and enabling the empty ladle in the second ladle position to be transferred to the iron receiving system, the double-ladle position tipping and iron adding system is used for adding the molten iron to the electric furnace system, and the slag removing system is used for removing slag from the ladle in the first ladle position;
the control system is in communication connection with the iron supply system, the tipping system, the iron receiving system, the double-ladle-position tipping and iron charging system, the lifting system, the slag skimming system and the electric furnace system and is used for controlling the working state of the whole system;
the double-ladle-position tipping and iron charging system comprises:
the third rail extends from the lifting system to the electric furnace system;
the iron adding flat wagon is movably arranged on the third track and is provided with the first wrapping position and the second wrapping position; and
and the two turnover mechanisms are correspondingly arranged at the first package position and the second package position.
2. The molten iron charging assembly line of claim 1, wherein the iron supply system comprises:
a first track;
the molten iron transport vehicle is movably arranged on the first track; and
and the molten iron tank is arranged on the molten iron transport vehicle.
3. The molten iron charging line of claim 1, wherein the tipping system comprises:
a tipping mechanism disposed adjacent to the iron supply system; and
and the limiting frame is arranged between the tilting mechanism and the iron receiving system and is used for limiting the tilting degree of the iron supply system.
4. The molten iron charging line of claim 1, wherein the iron receiving system comprises:
the second rail is connected with the iron supply system;
the iron receiving flat wagon is movably arranged on the second track; and
and the iron receiving ladle is arranged on the iron receiving flat car and can be transferred between the iron receiving flat car and the double-ladle-position tipping iron charging system, when the iron receiving ladle contains molten iron, the iron receiving ladle is defined as the hot metal ladle, and when the iron receiving ladle does not contain molten iron, the iron receiving ladle is defined as the empty ladle.
5. The molten iron charging line of claim 1, wherein the lifting system comprises:
the lifting frame is arranged between the iron supply system and the double-ladle-position tipping iron charging system;
the lifting mechanism is arranged on the lifting frame and can lift along the height direction of the lifting frame and horizontally move; and
and the lifting hook is arranged at the bottom of the lifting mechanism and used for hooking the ladle or the empty ladle.
6. The molten iron charging line of claim 1, wherein the tilting mechanism comprises:
the hydraulic cylinder is arranged on the hot metal charging flat car; and
and the overturning frame body is connected with the hydraulic cylinder and used for clamping the ladle so as to overturn the ladle.
7. The molten iron charging line of claim 6, wherein the overturning frame body comprises:
the fixing frame is fixed on the iron charging flat wagon;
the middle frame is hinged to the fixed frame and is connected with the hydraulic cylinder; and
the rotating frame is fixed on the middle frame and is provided with a clamping groove for clamping the ladle.
8. The molten iron charging line of claim 1, further comprising one or more of a monitoring system, a sensor system, a positioning system, and a self-locking system in communication with the control system;
the monitoring system is used for monitoring the working conditions of the iron supply system, the tipping system, the iron receiving system, the double-ladle-position tipping and iron charging system, the lifting system, the slag skimming system and the electric furnace system;
the sensor system is used for detecting the working conditions of the iron supply system, the tipping system, the iron receiving system, the double-ladle-position tipping and iron charging system, the lifting system, the slag skimming system and the electric furnace system;
the positioning system is used for confirming the position information of the iron supply system, the tipping system, the iron receiving system, the double-ladle-position tipping and iron charging system, the lifting system, the slag skimming system and the electric furnace system;
the self-locking system is used for enabling the corresponding systems to realize self-locking after the iron supply system, the tipping system, the iron receiving system, the double-ladle-position tipping iron charging system, the lifting system and the slag skimming system confirm position information.
9. The molten iron charging line of claim 1, further comprising an enclosure at least partially enclosing the iron supply system, the tipping system, the pick-up system, the dual-station tipping charging system, the lifting system, the slagging system, and the electric furnace system.
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| CN202011635291.3A CN112853037B (en) | 2020-12-31 | 2020-12-31 | Molten iron charging assembly line |
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| JP3685781B2 (en) * | 2002-11-19 | 2005-08-24 | 日本鋳鉄管株式会社 | Melting equipment for molten cast iron for ductile castings |
| CN202359149U (en) * | 2011-11-23 | 2012-08-01 | 中冶南方工程技术有限公司 | Molten iron feeding device for electric furnace |
| CN103433474A (en) * | 2013-08-16 | 2013-12-11 | 北京首钢国际工程技术有限公司 | Two-way conveying system for blast furnace molten iron conveying process of conveying ladle to bottom without stopping |
| CN206286548U (en) * | 2016-11-29 | 2017-06-30 | 山东杰创机械有限公司 | A kind of iron melt transfer system |
| CN209272466U (en) * | 2018-11-08 | 2019-08-20 | 山东杰创机械有限公司 | A kind of iron melt transfer system |
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