CN217947988U - Top-bottom combined blown converter with on-line screening and conveying device - Google Patents
Top-bottom combined blown converter with on-line screening and conveying device Download PDFInfo
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- CN217947988U CN217947988U CN202222402189.XU CN202222402189U CN217947988U CN 217947988 U CN217947988 U CN 217947988U CN 202222402189 U CN202222402189 U CN 202222402189U CN 217947988 U CN217947988 U CN 217947988U
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Abstract
The utility model discloses a top end combined blown converter with online screening feeding device, including converter body, converter body top is located to online screening feeding device, from the top down is provided with limestone storehouse, screening storehouse, lump material storehouse, the dusting jar, carry out online screening with the limestone raw materials through screening storehouse, lump material after the screening passes through lump material storehouse and directly adds the converter, the mode of converter is added to partial shipment after having replaced traditional screening, whole journey can not produce the powder of secondary crushing, economize the material environmental protection, and the powder after the screening all divides to each dusting gun through the distributor, the dusting gun directly blows in the powder from the converter bottom, laborsaving province material, accurate high efficiency, not only digested long-term overstock, the limestone powder ore deposit, the limestone powder reutilization flow has been simplified, greatly reduced steelmaking cost and intensity of labour, and reached resource secondary development utilization, reduce the purpose of carbon emission, material utilization rate and work efficiency have been improved greatly.
Description
Technical Field
The utility model relates to a metallurgical equipment field, concretely relates to top and bottom combined blown converter with online screening feeding device.
Background
Limestone is an important raw material for producing lime by using a converter in the metallurgical industry, and a large amount of limestone powder ore can be generated in the processes of mining, crushing and transporting the limestone. Because the powder ore is influenced by the granularity, when the powder ore is added into a feed opening at the top of the converter, the powder ore can be blown away by a dust removal fan of a vaporization cooling flue of the converter and cannot enter the converter for utilization, so that the traditional calcined lime only adopts lump materials, the limestone powder ore is accumulated and stockpiled for a long time, and a powder ore groove is often full of powder ore, so that the normal production is influenced. Later, the top-bottom combined blown converter obtained through further research improves the material conveying mode of the converter, combines top blowing and bottom blowing, reduces resource consumption and waste material discharge by blowing lump materials into the converter and blowing powder materials into the converter at the bottom, achieves the purpose of secondary development and utilization of resources, greatly reduces the steel-making cost and improves the material utilization rate.
However, the limestone materials of the top-bottom combined blown converter need to be sieved and split-charged in advance before being conveyed to the converter, the process is complicated, the lump materials can cause secondary crushing to generate powder during conveying, and the powder can still be blown away by a dust removal fan of a converter vaporization cooling flue when being added into the converter, so that resource waste and environmental pollution are caused.
SUMMERY OF THE UTILITY MODEL
The utility model provides a top end combined blown converter with on-line screening feeding device, aim at solve present top end combined blown converter material and need sieve in advance, the process is numerous and diverse, and the powder that produces when the lump material is carried can be blown away by converter vaporization cooling flue's dust exhausting fan when adding the converter, causes wasting of resources and environmental pollution's problem.
The utility model relates to a top-bottom combined blown converter with an online screening material conveying device, which comprises a converter body, wherein the top of the converter body is provided with a feed opening, the bottom of the converter body is provided with a powder distributor, the discharge opening of the powder distributor is respectively provided with a plurality of powder guns, the spray gun nozzles of the powder guns are vertically arranged towards the bottom of the converter body, the online screening material conveying device is arranged above the converter body and comprises a limestone bin, and the discharge opening at the bottom of the limestone bin is communicated with a material inlet of a screening bin; the vibrating screen plate is obliquely placed in the screening bin, a lump material outlet is formed in the side wall of the screening bin at the oblique bottom of the vibrating screen plate and communicated with a lump material bin feeding port, a lump material bin discharging port is communicated with one end of a second chute, the other end of the second chute faces a discharging port in the top of the converter body, and a second pneumatic gate valve and a second weighing sensor are sequentially arranged on the second chute; a discharge port at the bottom of the screening bin is communicated with a feeding port of a powder spraying tank, the discharge port of the powder spraying tank is communicated with a feeding port of a powder distributor through a material conveying pipe, and a first pneumatic gate valve and a first weighing sensor are sequentially arranged on the material conveying pipe; the first weighing sensor and the second weighing sensor are electrically connected with a signal input end of the PLC, and a signal output end of the PLC is electrically connected with the first pneumatic gate valve and the second pneumatic gate valve.
Preferably, the powder gun is of a single-tube type or an annular seam type.
Preferably, the lump material outlet is communicated with the lump material bin feeding port through a first chute.
Preferably, the screening granularity of the vibrating screen plate is less than or equal to 5mm.
Preferably, the angle of inclination of the vibrating screen deck is in the range of 15 ° to 30 °.
Compared with the prior art, the beneficial effects of the utility model are as follows:
1. the utility model provides a top end combined blown converter with online screening feeding device carries out online screening through the screening storehouse with the lime stone raw materials, and the lump material after the screening is sent into the lump material storehouse through the vibration sieve that slightly inclines to place and is directly added the converter, has replaced the mode that the converter was added to traditional screening back partial shipment, and whole journey can not produce the powder of secondary crushing, and then the powder can not appear and is blown the condition of diffusing in the air, economizes the material environmental protection. And the screened powder is uniformly distributed to each powder gun through the distributor, and the powder is directly blown in from the bottom of the converter by the powder guns, so that the powder spraying device is labor-saving, material-saving, accurate and efficient.
2. The utility model provides a top and bottom combined blown converter with on-line screening feeding device has digested long-term overstock, the limestone powder ore deposit of piling up under energy-conserving efficient prerequisite, has simplified limestone powder reutilization flow, greatly reduced steelmaking cost and intensity of labour, reached resource secondary development and utilized, reduced the purpose that carbon discharged, improved material utilization and work efficiency greatly.
3. The utility model provides a top-bottom combined blown converter with on-line screening feeding device all is equipped with weighing sensor and pneumatic gate valve on conveyer pipe and second elephant trunk, and weighing sensor is connected with PLC programmable controller's signal input part electricity, and PLC programmable controller's signal output part is connected with pneumatic gate valve electricity, can accurate control converter material volume through PLC programmable controller, and intelligence is convenient.
4. The utility model provides a top and bottom combined blown converter with on-line screening feeding device, on-line screening feeding device locate converter body top, and the material can get into converter body fast under the dead weight effect, saves other outside power supplies, and is energy-concerving and environment-protective.
Drawings
FIG. 1 is a schematic view of a top-bottom combined blown converter with an on-line screening and conveying device of the present invention;
FIG. 2 is a circuit connection diagram of the present invention;
in the figure: 1-limestone silo; 2-screening a bin; 3-a block storage bin; 4-powder spraying tank; 5-a converter body; 6-a first pneumatic gate valve; 7-a second pneumatic gate valve; 8-powder distributor; 9-powder gun; 10-a material conveying pipe; 11-a first chute; 12-a second chute; 13-vibrating the sieve plate; 14-a bulk material outlet; 15-a feed opening; 16-a first load cell; 17-a second load cell.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings:
as shown in fig. 1-2, the utility model relates to a top-bottom combined blown converter with an online screening material conveying device, which comprises a converter body 5, wherein a feed opening 15 is arranged at the top of the converter body 5, a powder distributor 8 is arranged at the bottom of the converter body, six single-tube powder guns 9 are respectively arranged at the discharge openings of the powder distributor 8, the spray nozzles of the powder guns 9 are vertically arranged towards the bottom of the converter body 5, the online screening material conveying device is arranged above the converter body 5 and comprises a limestone bin 1, and the discharge opening at the bottom of the limestone bin 1 is communicated with the feed opening of a screening bin 2; a vibrating screen plate 13 is obliquely placed in the screening bin 2 at an angle of 15 degrees, the screening granularity of the vibrating screen plate 13 is less than or equal to 5mm, a lump material outlet 14 is arranged on the side wall of the screening bin 2 at the oblique bottom of the vibrating screen plate 13, the lump material outlet 14 is communicated with a feeding hole of the lump material bin 3 through a first chute 11, a discharging hole of the lump material bin 3 is communicated with one end of a second chute 12, the other end of the second chute 12 faces a discharging hole 15 at the top of the converter body 5, and a second pneumatic gate valve 7 and a second weighing sensor 17 are sequentially arranged on the second chute 12; a discharge port at the bottom of the screening bin 2 is communicated with a feeding port of the powder spraying tank 4, a discharge port of the powder spraying tank 4 is communicated with a feeding port of the powder distributor 8 through a material conveying pipe 10, and a first pneumatic gate valve 6 and a first weighing sensor 16 are sequentially arranged on the material conveying pipe 10; the first weighing sensor 16 and the second weighing sensor 17 are electrically connected with a signal input end of the PLC, and a signal output end of the PLC is electrically connected with the first pneumatic gate valve 6 and the second pneumatic gate valve 7.
During the actual production, for making the screening material carry conveniently, limestone storehouse 1, screening storehouse 2, lump feed bin 3 and dusting tank 4 all have certain position corresponding relation, and limestone storehouse 1 is converter high-order feed bin, locates the higher position in 5 tops of converter body, and mainly used deposits the lime stone raw ore, and screening storehouse 2 is installed on the high-rise frame platform of converter body 5, and dusting tank 4 and lump feed bin 3 are located converter body 5's meso position feed bin department. Before screening, lump materials and powder adding amount are set according to the using amount of a converter body 5, limestone raw ores with the diameter of about 20mm are added into a limestone bin 1 during screening, the raw ores fall into a screening bin 2 for screening, a vibrating screen plate 13 is obliquely arranged in the screening bin 2 at an angle of 15 degrees, the screening granularity is less than or equal to 5mm, the lump materials with the diameter of more than or equal to 5mm after screening enter a lump material bin 3 through a lump material outlet 14 under the vibration action of the vibrating screen plate 13, then the lump materials are fed into the converter body 5 through a feed opening 15 in the top of the converter body 5, the screened powder with the diameter of less than or equal to 5mm falls into a powder spraying tank 4, the screened powder materials with the diameter of less than or equal to 5mm are distributed into six powder spraying guns 9 through a powder distributor 8 and blown into the converter body 5 from the bottom, when a first weighing sensor 16 and a second weighing sensor detect that the material conveying amount of the converter body 5 reaches the using amount, signals are fed back to a PLC, the PLC receives the signals to control a first pneumatic gate valve 6 and a second pneumatic gate valve 7 to close, and complete the online material screening and material conveying work of the top-bottom combined blown converter.
Claims (5)
1. The utility model provides a top-bottom combined blown converter with on-line screening feeding device, includes converter body (5), and converter body (5) top is equipped with feed opening (15), and the bottom is equipped with powder distributor (8), and powder distributor (8) discharge gate branch is equipped with a plurality of powder guns (9), and powder gun (9) spray gun nozzle is equal vertical towards the stove bottom setting of converter body (5), its characterized in that: the on-line screening and conveying device is arranged above the converter body (5) and comprises a limestone bin (1), and a discharge port at the bottom of the limestone bin (1) is communicated with a feeding port of the screening bin (2); a vibrating screen plate (13) is obliquely arranged in the screening bin (2), a lump material outlet (14) is formed in the side wall of the screening bin (2) at the oblique bottom of the vibrating screen plate (13), the lump material outlet (14) is communicated with a feeding hole of the lump material bin (3), a discharging hole of the lump material bin (3) is communicated with one end of a second slide pipe (12), the other end of the second slide pipe (12) faces a discharging hole (15) at the top of the converter body (5), and a second pneumatic gate valve (7) and a second weighing sensor (17) are sequentially arranged on the second slide pipe (12); a discharge hole at the bottom of the screening bin (2) is communicated with a feed inlet of the powder spraying tank (4), a discharge hole of the powder spraying tank (4) is communicated with a feed inlet of the powder distributor (8) through a feed delivery pipe (10), and a first pneumatic gate valve (6) and a first weighing sensor (16) are sequentially arranged on the feed delivery pipe (10); the first weighing sensor (16) and the second weighing sensor (17) are electrically connected with a signal input end of the PLC, and a signal output end of the PLC is electrically connected with the first pneumatic gate valve (6) and the second pneumatic gate valve (7).
2. A top-bottom combined blown converter with an on-line screening conveyor as claimed in claim 1 wherein: the powder spray gun (9) is of a single-tube type or an annular seam type.
3. The top-bottom combined blown converter with an on-line screening conveyor as claimed in claim 1, wherein: the lump material outlet (14) is communicated with a feeding port of the lump material bin (3) through a first chute (11).
4. A top-bottom combined blown converter with an on-line screening conveyor as claimed in any one of claims 1 to 3 wherein: the screening granularity of the vibrating screen plate (13) is less than or equal to 5mm.
5. The top-bottom combined blown converter with an on-line screening conveyor as claimed in claim 4, wherein: the inclination angle range of the vibrating screen plate (13) is 15-30 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222402189.XU CN217947988U (en) | 2022-09-09 | 2022-09-09 | Top-bottom combined blown converter with on-line screening and conveying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222402189.XU CN217947988U (en) | 2022-09-09 | 2022-09-09 | Top-bottom combined blown converter with on-line screening and conveying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217947988U true CN217947988U (en) | 2022-12-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222402189.XU Active CN217947988U (en) | 2022-09-09 | 2022-09-09 | Top-bottom combined blown converter with on-line screening and conveying device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217947988U (en) |
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2022
- 2022-09-09 CN CN202222402189.XU patent/CN217947988U/en active Active
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