CN210420023U - Ladle top slag modification device - Google Patents
Ladle top slag modification device Download PDFInfo
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- CN210420023U CN210420023U CN201921531301.1U CN201921531301U CN210420023U CN 210420023 U CN210420023 U CN 210420023U CN 201921531301 U CN201921531301 U CN 201921531301U CN 210420023 U CN210420023 U CN 210420023U
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- screen
- cone
- outer cover
- feeding pipe
- top slag
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Abstract
The utility model discloses a ladle top slag modification device, which comprises a storage bin, a first vibration feeder, a weighing hopper, a second vibration feeder, a receiving hopper and a distributing device; the distributing device comprises an outer cover, a supporting bolt, a guide plate, a blending chamber, a feeding pipe, a shunting cone, a lower support and a plurality of screens, and is communicated with the receiving hopper through the feeding pipe; the feeding pipe, the blending chamber and the outer cover are arranged from top to bottom, and the guide plate is arranged at the lower part of the blending chamber; the plurality of screens are arranged below the outer cover in parallel at intervals and are fixedly connected through supporting bolts; the distribution cone is positioned in the center of the distributing device, the top end of the distribution cone is positioned at the bottom of the feeding pipe, and the lower part of the distribution cone is connected with each screen; the lower support is arranged at the lower part of the screen mesh at the lowest part. The utility model relates to a novelty, simple structure, preparation and convenient operation can reach and stabilize the modification effect, improve product quality, pollution abatement is big, reduce cost's purpose. On the premise of the same modification effect, the consumption of the modified material is reduced by more than 30 percent.
Description
Technical Field
The utility model belongs to the field of steel smelting, relates to the converter smelting, provides a modification device to the even cloth of ladle surface slag blanket very much.
Background
When the converter is used for smelting low-carbon aluminum killed steel, steel is not deoxidized or is weakly deoxidized, the molten steel has high activity oxygen and strong slag oxidability (generally measured by the content of FeO and MnO), therefore, after steel is smelted and tapped, a reducing material is added for modification treatment, the slag floating on the surface of a steel ladle is subjected to physical and chemical property adjustment, the oxidability of slag at the top of the steel ladle is reduced, and the contents of CaO, Al2O3 and the like in the slag are adjusted.
The existing modification process generally adds the modification material to the slag surface of the ladle manually or by a slide pipe after steel is discharged, the modification material cannot be uniformly spread on the slag surface of the ladle, the local accumulation is serious, the reaction interface is small, the deoxidation of molten steel in an accumulation area is obvious, the effect of modifying slag is not achieved, the pollution is large, and the cost is high; in the subsequent refining RH treatment, due to the high content of FeO and MnO in the top slag, the qualified molten steel after vacuum treatment is subjected to secondary oxidation, and slag entrapment is caused by blockage of a tundish nozzle and change of a flow field in a crystallizer in the continuous casting process. After inclusions and involved covering slag generated by secondary oxidation are captured by the blank shell, obvious defects such as linear and holes on the surface of the steel plate can be generated in the cold rolling process, the appearance quality is directly influenced, and the influence on the stamping performance is obvious.
SUMMERY OF THE UTILITY MODEL
To the technical problem who exists among the above-mentioned background art, the utility model provides a ladle top sediment upgrading device can reach and stabilize the upgrading effect, improve product quality, the pollution abatement is big, reduce cost's purpose.
The utility model provides a technical problem's technical scheme as follows:
the utility model relates to a ladle top slag modification device, which is characterized by comprising a storage bin, a first vibration feeder, a weighing hopper, a second vibration feeder, a receiving hopper and a distributing device which are arranged from top to bottom; the first vibration feeder is arranged between the stock bin and the weighing hopper and is used for conveying materials from the stock bin to the weighing hopper; the second vibratory feeder is arranged between the weighing hopper and the receiving hopper and is used for conveying materials from the weighing hopper to the receiving hopper; the distributing device is connected with the receiving hopper and is used for uniformly distributing materials; the distributing device is the core equipment of the utility model, which comprises an outer cover, a supporting bolt, a guide plate, a mixing chamber, a feeding pipe, a diffluence cone, a lower support and a plurality of screens; the distributing device is communicated with an outlet at the bottom of the receiving hopper through a feeding pipe; the feeding pipe, the blending chamber and the outer cover are arranged from top to bottom; the guide plate is arranged at the lower part of the mixing chamber; the plurality of screens are arranged below the outer cover in parallel at intervals and are connected and fixed through supporting bolts; the distribution cone is positioned in the center of the distribution device, the top end of the distribution cone is positioned at the bottom of the feeding pipe, and the lower part of the distribution cone is connected with each screen; the lower support is arranged at the lower part of the lowest screen; the outer cover and each screen are made of heat-resistant steel plates or other heat-resistant materials, the screen holes of each screen are determined according to the characteristics of materials and are generally round holes with the diameter of 20-50mm, and the outer cover does not have holes.
According to the on-site physical space and the technological requirements, as a further improvement of the technical scheme of the utility model, the stock bin, the first vibration feeder, the weighing hopper and the second vibration feeder can be arranged in one group or a plurality of groups, and a plurality of stock bins can share the weighing hopper; for material transfer under a complex state, a belt can be used for connecting and conveying materials between the second vibration feeder and the receiving hopper; the sizes of the storage bin, the weighing hopper and the receiving hopper can be designed according to the requirements of the actual process.
As the utility model discloses technical scheme's further improvement, inlet pipe and mixing chamber are the cylinder cavity, and the material generally is metal material, and the diameter of inlet pipe is less than the diameter of mixing chamber.
As the utility model discloses technical scheme's further improvement, the dustcoat is round platform form cavity, the screen cloth includes screen cloth, well screen cloth and lower screen cloth, and this goes up screen cloth and well screen cloth and be round platform form cavity, and this time screen cloth is coniform cavity.
As the further improvement of the technical proposal of the utility model, the spreader cone is generally made of steel plate material, the upper part of the spreader cone is of a cone-shaped structure, and the lower part of the spreader cone is of a round platform-shaped structure.
As the further improvement of the technical proposal of the utility model, the guide plate is in the shape of a round platform without upper and lower bottom surfaces and is made of steel materials.
As a further improvement of the technical proposal of the utility model, the included angle between the bus of the outer cover and the bottom surface is 15 degrees to 65 degrees, preferably 45 degrees.
As the further improvement of the technical proposal of the utility model, the half cone angle of the guide plate is 5 degrees to 40 degrees, preferably 25 degrees.
As the further improvement of the technical scheme of the utility model, the outside of mixing chamber is provided with hangs.
As the utility model discloses technical scheme's further improvement still includes the PLC controller, first vibratory feeder and second vibratory feeder are the variable frequency feeder, feed bin, first vibratory feeder, weighing hopper and second vibratory feeder insert the PLC controller through the circuit respectively, control batching, weigh, carry, feed back and gather work such as relevant data information through the PLC controller.
The cloth flow of the device is as follows: the second vibratory feeder stops, the weighing weight is set, the first vibratory feeder is started, and when the weighing weight reaches a preset target value, the first vibratory feeder stops automatically; and opening a discharge valve of the receiving hopper, and starting the second vibratory feeder to finish material distribution.
Compared with the prior art, ladle top sediment upgrading device novel in design, simple structure, preparation and convenient operation can reach and stabilize the modification effect, improve product quality, the pollution abatement is big, reduce cost's purpose. On the premise of the same modification effect, the consumption of the modified material is reduced by more than 30 percent.
Drawings
The invention will be further explained with reference to the drawings and the detailed description below:
fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic structural view of a material distributing device according to the present invention;
in the figure: 1-stock bin, 2-first vibratory feeder, 3-weighing hopper, 4-second vibratory feeder, 5-receiving hopper, 6-distributing device, 7-steel ladle, 6-1-outer cover, 6-2-supporting bolt, 6-3-guide plate, 6-4-suspension, 6-5-blending chamber, 6-6-feeding pipe, 6-7-diffluence cone, 6-8-upper screen, 6-9-middle screen, 6-10-lower screen, 6-11-lower support, and 6-12-screen.
Detailed Description
As shown in FIGS. 1 and 2, an example of a 300-ton converter ladle top slag upgrading apparatus is illustrated. The utility model relates to a ladle top slag modification device, which is designed with the inner diameter of 4500mm at the upper part of a ladle 7, and comprises a storage bin 1, a first vibratory feeder 2, a weighing hopper 3, a second vibratory feeder 4, a receiving hopper 5 and a distributing device 6 which are arranged from top to bottom; the storage bin 1 is pressed to be 3.5m3Weighing hopper 3 according to 2m3The receiving hopper 5 is pressed to be 1.5m3Designing; the material distribution device 6 comprises an outer cover 6-1, a support bolt 6-2, a guide plate 6-3, a blending chamber 6-5, a feeding pipe 6-6, a flow dividing cone 6-7, a lower support 6-11 and a plurality of screens 6-12; the material distribution device 6 is communicated with an outlet at the bottom of the receiving hopper 5 through a feeding pipe 6-6; the feeding pipe 6-6, the blending chamber 6-5 and the outer cover 6-1 are arranged from top to bottom, and a guide plate is arranged at the lower part of the blending chamber 6-5; a plurality of screens 6-12 are arranged in parallel at intervals on the outer cover6-1 below and connected and fixed by a plurality of supporting bolts 6-2; the shunting cone 6-7 is positioned in the middle of the inner side of the distributing device 6, the top end of the shunting cone is positioned at the bottom of the feeding pipe 6-6, and the lower part of the shunting cone is connected with each screen 6-12; the lower supports 6-11 are arranged below the lowermost screen 6-12.
In this embodiment, the feeding pipe 6-6 and the mixing chamber 6-5 are both cylindrical cavities, the material is Q235, and the diameter of the feeding pipe 6-6 is smaller than that of the mixing chamber 6-5.
In the embodiment, the outer cover 6-1 is a truncated cone-shaped cavity, the screen 6-11 comprises an upper screen 6-8, a middle screen 6-9 and a lower screen 6-10, and is fixed with the outer cover 6-1 through a plurality of supporting bolts 6-2, the upper screen 6-8 and the middle screen 6-9 are truncated cone-shaped cavities, and the lower screen 6-10 is a conical cavity; the outer cover 6-1, the upper screen 6-8, the middle screen 6-9 and the lower screen 6-10 are all made of heat-resistant stainless steel plates 2Cr25Ni20, and the diameter of each screen mesh is 25 mm.
In this embodiment, the splitter cone 6-7 has a cavity structure formed by combining a conical structure at the upper part and a truncated cone structure at the lower part, and is made of Q355, the thickness of the cavity structure is 4mm, and the half cone angle of the cone is 20 °.
In this embodiment, the flow guide plate 6-3 is in the shape of a circular truncated cone without upper and lower bottom surfaces, and is made of a material Q355 with a thickness of 4mm and a half-cone angle of 25 °.
In this embodiment, an included angle between a bus of the outer cover 6-1 and the bottom surface is 45 °.
In this embodiment, the storage bin 1, the first vibratory feeder 2, the weighing hopper 3 and the second vibratory feeder 4 may be arranged in one or more groups.
In the embodiment, a suspension 6-4 is arranged on the outer side of the blending chamber 6-5.
In this embodiment, still include the PLC controller (the attached drawing is not seen), first vibratory feeder 2 and second vibratory feeder 4 are the variable frequency feeder, feed bin 1, first vibratory feeder 2, weighing hopper 3 and second vibratory feeder 4 insert the PLC controller through the circuit respectively, and the PLC controller of being convenient for carries out automatic control according to the concrete demand of technology and the feedback of equipment information such as first vibratory feeder 2, second vibratory feeder 4 and weighing hopper 3.
The material distribution process comprises the following steps:
the ladle top slag modification device is arranged above a ladle 7, the second vibration feeder 4 is stopped, the weighing weight is set to be 500kg, the first vibration feeder 2 is started, when the weighing reaches a preset target value, the first vibration feeder 2 is automatically stopped, and the actual material weight is fed back to be 503 kg; after the operator confirms, the discharge valve of the receiving hopper 5 is opened, and the second vibration feeder 4 is started to finish the material distribution.
The above is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope defined by the claims.
The parts of the present invention not described in detail are the known techniques of those skilled in the art.
Claims (10)
1. A ladle top slag modifying device is characterized by comprising a storage bin (1), a first vibration feeder (2), a weighing hopper (3), a second vibration feeder (4), a receiving hopper (5) and a distributing device (6) which are arranged from top to bottom; the material distribution device (6) comprises an outer cover (6-1), a supporting bolt (6-2), a guide plate (6-3), a mixing chamber (6-5), a feeding pipe (6-6), a flow distribution cone (6-7), a lower support (6-11) and a plurality of screens (6-12); the material distribution device (6) is communicated with an outlet at the bottom of the receiving hopper (5) through a material inlet pipe (6-6); the feeding pipe (6-6), the blending chamber (6-5) and the outer cover (6-1) are arranged from top to bottom; the guide plate (6-3) is arranged at the lower part of the mixing chamber (6-5); the plurality of screens (6-12) are arranged below the outer cover (6-1) in parallel at intervals and are connected and fixed through supporting bolts (6-2); the shunting cone (6-7) is positioned in the center of the distributing device (6), the top end of the shunting cone is positioned at the bottom of the feeding pipe (6-6), and the lower part of the shunting cone is connected with each screen (6-12); the lower support (6-11) is arranged at the lower part of the lowest screen (6-12).
2. The ladle top slag modifying device according to claim 1, wherein the feeding pipe (6-6) and the mixing chamber (6-5) are both cylindrical cavities, and the diameter of the feeding pipe (6-6) is smaller than that of the mixing chamber (6-5).
3. The ladle top slag modifying device according to claim 2, wherein the outer cover (6-1) is a truncated cone-shaped cavity, the screen (6-12) comprises an upper screen (6-8), a middle screen (6-9) and a lower screen (6-10) and is fixed with the outer cover (6-1) through a plurality of supporting bolts (6-2), the upper screen (6-8) and the middle screen (6-9) are truncated cone-shaped cavities, and the lower screen (6-10) is a conical cavity.
4. The ladle top slag modifying device according to claim 2 or 3, wherein the upper part of the spreader cone (6-7) is of a conical structure, and the lower part of the spreader cone is of a truncated cone structure.
5. The ladle top slag modifying device according to claim 2, wherein the deflector (6-3) is in the shape of a truncated cone without an upper bottom surface and a lower bottom surface.
6. The ladle top slag modifying device according to claim 3, wherein the included angle between the generatrix of the outer cover (6-1) and the bottom surface is 15-65 degrees.
7. The ladle top slag upgrading device according to claim 5, wherein the half cone angle of the deflector (6-3) is 5-40 °.
8. The ladle top slag modifying device according to claim 1, wherein the storage bin (1), the first vibratory feeder (2), the weighing hopper (3) and the second vibratory feeder (4) can be arranged in one or more groups.
9. The ladle top slag modifying device according to claim 1, wherein a suspension (6-4) is arranged outside the blending chamber (6-5).
10. The ladle top slag modifying device according to claim 1, further comprising a PLC controller, wherein the first vibratory feeder (2) and the second vibratory feeder (4) are both variable frequency feeders, and the storage bin (1), the first vibratory feeder (2), the weighing hopper (3) and the second vibratory feeder (4) are respectively connected to the PLC controller through lines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921531301.1U CN210420023U (en) | 2019-09-12 | 2019-09-12 | Ladle top slag modification device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921531301.1U CN210420023U (en) | 2019-09-12 | 2019-09-12 | Ladle top slag modification device |
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| Publication Number | Publication Date |
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| CN210420023U true CN210420023U (en) | 2020-04-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921531301.1U Active CN210420023U (en) | 2019-09-12 | 2019-09-12 | Ladle top slag modification device |
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| CN (1) | CN210420023U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110453042A (en) * | 2019-09-12 | 2019-11-15 | 马鞍山钢铁股份有限公司 | A kind of ladle top slag modifying apparatus |
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2019
- 2019-09-12 CN CN201921531301.1U patent/CN210420023U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110453042A (en) * | 2019-09-12 | 2019-11-15 | 马鞍山钢铁股份有限公司 | A kind of ladle top slag modifying apparatus |
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