CN210293420U - LF stove line outer alloy weighing device - Google Patents
LF stove line outer alloy weighing device Download PDFInfo
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- CN210293420U CN210293420U CN201921414242.XU CN201921414242U CN210293420U CN 210293420 U CN210293420 U CN 210293420U CN 201921414242 U CN201921414242 U CN 201921414242U CN 210293420 U CN210293420 U CN 210293420U
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Abstract
The utility model relates to a LF stove line outer alloy weighing device belongs to LF stove technical field, include: a frame; the storage bins are respectively arranged on the rack and used for storing alloy, and each storage bin is respectively provided with a feeding port and a discharging port; the vibrating screen is arranged below the storage bin; the first driving unit is connected with the vibrating screen in a driving mode so that the vibrating screen shakes off the alloy; the weighing unit is arranged below the vibrating screen and used for weighing the alloy. The method can accurately measure the weight of the added alloy, reduce the fluctuation range of alloy components, and has stable control, and the chemical components of the finished product silicon and manganese of the billet are controlled to be reduced from the lower limit of 0.05% to the lower limit of 0.04% by accurately measuring the alloy components, thereby greatly reducing the cost of the alloy, reducing the fluctuation of the components of molten steel between adjacent furnaces, improving the component stability of the molten steel, and providing good molten steel for a continuous casting machine.
Description
Technical Field
The utility model relates to a LF stove technical field especially relates to LF stove line outer alloy weighing device.
Background
After tapping of a converter in a steel plant, in order to reduce the content of harmful gases in molten steel and improve the quality of the molten steel, the molten steel generally needs to be sent to an argon blowing station of an LF furnace for temperature and component adjustment, each furnace needs to manually add alloy into a ladle, the added alloy is different in weight according to different components, the existing alloy adding mode is to manually add the alloy into the ladle by utilizing a shovel, a shovel and a shovel, and in the process, the added weight is mainly estimated according to experience, but the mode estimated by utilizing manual experience is low in precision, and meanwhile, the estimation mode is unstable, so that the component deviation is large sometimes, the fluctuation of molten steel components between adjacent furnaces is caused, and the component stability of the molten steel is reduced.
The above description is included in the technical recognition scope of the inventors, and does not necessarily constitute the prior art.
SUMMERY OF THE UTILITY MODEL
The utility model provides a LF stove line outer alloy weighing device, it can the accurate measurement add the weight of alloy, alloy composition fluctuation range has been reduced, control is stable, through accurate measurement alloy composition, steel billet finished product silicon, manganese chemical composition control is reduced within lower limit 0.04% by lower limit 0.05%, greatly reduced the cost of alloy, reduce the fluctuation of molten steel composition between adjacent stove, the composition stability of molten steel has been improved, good molten steel is provided for the conticaster, the problem among the prior art has been solved.
The utility model discloses a solve the technical scheme that above-mentioned technical problem adopted and be:
LF stove off-line alloy weighing device includes:
a frame;
the storage bins are respectively arranged on the rack and used for storing alloy, and each storage bin is respectively provided with a feeding port and a discharging port;
the vibrating screen is arranged below the storage bin;
the first driving unit is connected with the vibrating screen in a driving mode so that the vibrating screen shakes off the alloy;
the weighing unit is arranged below the vibrating screen and used for weighing the alloy.
Further preferably, the weighing device further comprises a control unit, wherein the control unit is respectively connected with the first driving unit and the weighing unit, and receives the weight signal of the weighing unit and controls the first driving unit.
Further preferably, the weighing unit includes:
a weighing hopper;
and the weighing sensor is connected with the weighing hopper and used for acquiring the weight of the alloy in the weighing hopper, and the weighing sensor is connected with the control unit and transmits weight data to the control unit.
Preferably, the weighing hopper is hinged to the frame, and the weighing unit further comprises a second driving unit connected with the weighing hopper and used for driving the weighing hopper to rotate along the hinged position.
Preferably, the second driving unit is a cylinder.
Preferably, the first driving unit is a vibration motor.
Preferably, the control unit is a control box, and the control box includes:
a weighing instrument controller connected with the weighing unit, the weighing instrument controller receiving and displaying the weight data of the weighing unit,
the contactor is used for realizing the on-off of a circuit connected with the vibration motor, and the starting or stopping of the vibration motor is controlled by controlling the on-off of the contactor.
The above technical scheme of the utility model the weight of alloy can be added in the accurate measurement, alloy composition fluctuation range has been reduced, and control is stable, and through the accurate measurement alloy composition, steel billet finished product silicon, manganese chemical composition control are reduced within lower limit 0.04% by lower limit 0.05%, greatly reduced the cost of alloy, reduce the fluctuation of molten steel composition between adjacent furnaces, improved the composition stability of molten steel, provide good molten steel for the conticaster.
Drawings
Fig. 1 is a schematic structural view of the present invention;
in the figure, the device comprises a frame 1, a frame 2, a storage bin 3, a vibrating screen 4, a hanging device 5, a mounting seat 6, a vibrating motor 7, a conveying pipeline 8, a weighing hopper 9, an air cylinder 10, a rotating chute 11 and a steel ladle.
Detailed Description
In order to clearly illustrate the technical features of the present invention, the present invention is explained in detail by the following embodiments with reference to the accompanying drawings.
As shown in fig. 1, the LF off-line alloy weighing device includes:
the device comprises a frame 1, two storage bins 2 are arranged at the upper end of the frame 1, each storage bin 2 is of a rectangular pyramid structure formed by welding steel plates with the thickness of 10mm, the upper end opening of each storage bin 2 is larger than the lower end opening, the capacity of each storage bin 2 is one ton of alloy, each storage bin 2 is provided with a feed inlet and a discharge outlet, the alloy in the storage bins 2 drops on a vibrating screen 3 arranged below the storage bin 2 through the discharge outlet, the two vibrating screens 3 are respectively arranged below the storage bins 2 through hanging devices 4, the vibrating screens 3 adopt the structure of the existing vibrating screens 3, the vibrating screens 3 are customized to the size matched with the size of the storage bins 2 according to the size of the storage bins 2, in order to be matched with the structure of the storage bins 2, each hanging device 4 is a hanging mounting seat 5, the bottom of each mounting seat 5 is opened, the upper ends of the hanging devices 4 are fixed on the storage bins 2 through bolts, the welding of lower extreme has a rings, and 5 both sides welding of mount pad have two lugs, and two lugs are hung respectively on two rings for mount pad 5 is hung on storage silo 2, and shale shaker 3 is fixed in mount pad 5. In this embodiment, the vibrating screen 3 is driven by a vibrating motor 6, the vibrating motor 6 is mounted on a mounting base 5 through bolts, whether the vibrating screen 3 discharges materials is controlled by starting and stopping the vibrating motor 6, the lower parts of the two vibrating screens 3 are respectively converged by a material conveying pipe 7, a weighing unit is arranged below the converging end of the material conveying pipe 7, in this embodiment, the weighing unit can adopt a weighing hopper 8, the weighing hopper 8 is provided with a weighing sensor at the bottom end of the weighing hopper 8, the weighing hopper 8 is dustpan-shaped, one end of the bottom surface of the weighing hopper 8 is hinged on the frame 1, the other end of the bottom surface of the weighing hopper is connected with a cylinder 9, the cylinder body end of the cylinder 9 is fixed on the frame 1, the piston rod end of the cylinder is connected with the weighing hopper 8, when the piston rod end of the cylinder 9 extends, the weighing hopper 8 rotates along the hinged position, and then alloy in the weighing hopper 8 is poured into a rotary chute 10 mounted on the frame 1, the alloy flows into a ladle 11 through the rotary launder 10, and after the alloy is poured into the rotary launder 10, a piston rod of the air cylinder 9 retracts, and the weighing hopper 8 is horizontal. In other preferred embodiments, the air cylinder 9 can be replaced by an electric push rod or an electric cylinder.
Above-mentioned vibrating motor 6 open the demonstration of opening of control and 8 weight of weighing hopper is realized through the control unit, concrete control is contactor control, the control unit is a control box, the control box includes weighing instrument controller, weighing instrument controller is connected with weighing hopper 8, a weight for showing alloy in the weighing hopper 8, still install the contactor in the control box simultaneously, the contactor is connected with vibrating motor 6, whether the weight value that shows on the weighing instrument controller through artifical range estimation reaches the weight of required alloy, and then the break-make of manual control contactor comes control vibrating motor 6 to start or stop, and then whether the unloading of control shale shaker 3. The specific control process is as follows:
manually calculating the weight value of the alloy to be added;
manually controlling a button on a weighing instrument controller to contact a contactor, starting a vibrating motor 6 to drive a vibrating screen 3 to work, and enabling alloy falling on the vibrating screen 3 from a storage bin 2 to fall below the vibrating screen of the vibrating screen 3 and fall to a weighing hopper 8;
the weighing sensor detects the weight of the alloy in the weighing hopper 8 in real time and transmits weight data to the weighing instrument controller for display;
manually observing the numerical value on the weighing instrument controller, and manually controlling the contactor to be disconnected when the weight of the alloy reaches the required weight, stopping the vibration motor 6 from running, further stopping the vibration sieve 3 from adding the alloy into the weighing hopper 8, and finishing the accurate adding process of the alloy.
The above-mentioned specific embodiments can not be regarded as the restriction to the scope of protection of the utility model, to technical personnel in this technical field, it is right the utility model discloses any replacement improvement or transform that embodiment made all fall within the scope of protection of the utility model.
The parts of the present invention not described in detail are the known techniques of those skilled in the art.
Claims (7)
- An LF stove off-line alloy weighing device which characterized in that includes:a frame;the storage bins are respectively arranged on the rack and used for storing alloy, and each storage bin is respectively provided with a feeding port and a discharging port;the vibrating screen is arranged below the storage bin;a first drive unit drivingly connected to the shaker screen to cause the shaker screen to shake off alloy;and the weighing unit is arranged below the vibrating screen and is used for weighing the alloy.
- 2. The LF furnace line external alloy weighing device of claim 1, further comprising:and the control unit is respectively connected with the first driving unit and the weighing unit, and receives the weight signal of the weighing unit and controls the first driving unit.
- 3. The LF furnace line external alloy weighing device of claim 2, wherein the weighing unit comprises:a weighing hopper;and the weighing sensor is connected with the weighing hopper and used for acquiring the weight of the alloy in the weighing hopper, and the weighing sensor is connected with the control unit and transmits weight data to the control unit.
- 4. The LF furnace line external alloy weighing apparatus of claim 3, wherein the weighing hoppers are hinged to the frame, and the weighing unit further comprises:and the second driving unit is connected with the weighing hopper and is used for driving the weighing hopper to rotate along the hinged part.
- 5. The LF furnace line external alloy weighing device as claimed in claim 4, wherein the second driving unit is a cylinder.
- 6. The LF furnace line external alloy weighing device of claim 1, wherein the first driving unit is a vibration motor.
- 7. The LF furnace line external alloy weighing device of claim 2, wherein the control unit is a control box, and the control box comprises:the weighing instrument controller is connected with the weighing unit and receives and displays the weight data of the weighing unit;the contactor is used for controlling the first driving unit to start or stop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921414242.XU CN210293420U (en) | 2019-08-27 | 2019-08-27 | LF stove line outer alloy weighing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921414242.XU CN210293420U (en) | 2019-08-27 | 2019-08-27 | LF stove line outer alloy weighing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210293420U true CN210293420U (en) | 2020-04-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921414242.XU Active CN210293420U (en) | 2019-08-27 | 2019-08-27 | LF stove line outer alloy weighing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210293420U (en) |
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2019
- 2019-08-27 CN CN201921414242.XU patent/CN210293420U/en active Active
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| GR01 | Patent grant | ||
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| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: XINJIANG KUNYU STEEL Co.,Ltd. Assignor: SHIHENG SPECIAL STEEL GROUP Co.,Ltd. Contract record no.: X2022980027040 Denomination of utility model: Off-line alloy weighing device of LF furnace Granted publication date: 20200410 License type: Common License Record date: 20230105 |