CN219861434U - KR desulphurization unit for pretreatment of molten iron - Google Patents
KR desulphurization unit for pretreatment of molten iron Download PDFInfo
- Publication number
- CN219861434U CN219861434U CN202321175041.5U CN202321175041U CN219861434U CN 219861434 U CN219861434 U CN 219861434U CN 202321175041 U CN202321175041 U CN 202321175041U CN 219861434 U CN219861434 U CN 219861434U
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- China
- Prior art keywords
- feeding
- stirring
- molten iron
- rod
- ladle
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 54
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 27
- 238000003756 stirring Methods 0.000 claims abstract description 59
- 230000003009 desulfurizing effect Effects 0.000 claims abstract description 26
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 23
- 238000006477 desulfuration reaction Methods 0.000 claims abstract description 18
- 230000023556 desulfurization Effects 0.000 claims abstract description 18
- 230000000149 penetrating effect Effects 0.000 claims abstract description 5
- 210000001503 joint Anatomy 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 17
- 239000000428 dust Substances 0.000 claims description 6
- 239000000779 smoke Substances 0.000 claims description 5
- 238000003723 Smelting Methods 0.000 abstract description 2
- 230000003031 feeding effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Landscapes
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Abstract
The utility model relates to a KR desulfurization device for molten iron pretreatment, and belongs to the technical field of smelting equipment. The stirring device comprises a ladle, wherein an upper cover is arranged on the top end cover of the ladle, a stirring hole is formed in the center of the upper cover, a stirring rod which is vertically arranged is arranged in the stirring hole in a penetrating manner, a stirring head is arranged at the bottom end of the stirring rod, the stirring head is arranged in the ladle, the stirring rod is driven to rotate, and the stirring head is driven to stir molten iron; the upper cover is provided with a feeding port, the feeding port is in butt joint with an outlet of the storage box, an intermittent feeding unit is arranged in the storage box, and the intermittent feeding unit intermittently drops the desulfurizing agent into the ladle through the feeding port. The opening of the feeding groove is upward, and the desulfurizing agent falls into the feeding groove; the opening of the feeding groove is downward, the desulfurizing agent in the feeding groove can fall down to intermittently feed, when the desulfurizing agent falls down from the feeding opening, the desulfurizing agent falls on the vortex surface to form a strip shape, and the whole vortex surface can be paved at the blanking position of the desulfurizing agent, so that the mixing feeding effect is more excellent.
Description
Technical Field
The utility model relates to a KR desulfurization device for molten iron pretreatment, and belongs to the technical field of smelting equipment.
Background
The KR desulfurization method is a pretreatment desulfurization method which is more common for molten iron. The existing KR desulfurization equipment is generally composed of a ladle, an upper cover, stirring equipment and a desulfurizing agent feeding device, the stirring equipment is generally composed of a high-temperature-resistant stirring rod and a stirring head, vortex is generated at the middle position of molten iron in a stirring mode, desulfurizing agent is fed into the vortex through a guide pipe, molten iron and the desulfurizing agent are fully mixed and contacted, so that the desulfurizing effect is achieved, and meanwhile smoke dust generated in the desulfurizing process is led out by a dust removal air pipe and is discharged after being filtered.
In the desulfurization process, the temperature of molten iron is reduced, so that the desulfurization agent is usually required to be rapidly put into the desulfurization process, but better mixing is difficult to realize due to excessive one-time feeding. In the prior art, the desulfurizing agent is uniformly blown into the vortex to contact with molten iron in a nitrogen blowing mode, the efficiency of the mode is high, but the nitrogen consumption is large, and the overall production cost is high.
Disclosure of Invention
The utility model aims to solve the technical problem of providing the KR desulfurization device for molten iron pretreatment aiming at the prior art, which can obtain a better feeding surface, improve the desulfurization effect and reduce the production cost.
The utility model solves the problems by adopting the following technical scheme: the KR desulfurization device for molten iron pretreatment comprises a ladle, wherein an upper cover is arranged on the top end of the ladle in a covering manner, a stirring hole is formed in the center of the upper cover, a stirring rod which is vertically arranged is arranged in the stirring hole in a penetrating manner, a stirring head is arranged at the bottom end of the stirring rod, and the stirring head is arranged in the ladle and drives the stirring rod to rotate so as to drive the stirring head to stir molten iron; the upper cover is provided with a feeding port, the feeding port is in butt joint with an outlet of the storage box, an intermittent feeding unit is arranged in the storage box, and the intermittent feeding unit intermittently drops the desulfurizing agent into the ladle through the feeding port.
The intermittent feeding unit comprises a feeding rod, the feeding rod horizontally penetrates through the storage box, a feeding groove is formed in the surface of the feeding rod, and the feeding groove is axially arranged along the feeding rod; the feeding rod is driven to rotate, so that the feeding groove is switched between upward-opening material receiving and downward-opening feeding, and intermittent feeding is formed.
The stirring rod periphery sets up the bevel gear, throw material stick one end and set up driven gear, bevel gear and driven gear mesh mutually.
The material inlet is square, the inner cavity of the storage box is rectangular, and the outlet of the storage box is matched with the material inlet.
The upper cover is provided with a smoke exhaust port which is connected with a dust removing air pipe.
The stirring head and the stirring rod are integrally formed.
Compared with the prior art, the utility model has the advantages that: the utility model provides a KR desulphurization unit for pretreatment of molten iron, when the puddler rotates, bevel gear rotates and drives driven gear and rotate, make the unloading stick rotate, throw the material groove at unloading stick pivoted in-process, when throwing the material groove opening upwards, the desulfurizing agent falls into throwing the material groove, and after certain angle rotation, throw the material groove opening downwards, the desulfurizing agent alright fall in throwing the material inslot at this moment, wholly demonstrate intermittent type formula pay-off, and realize even based on the transmission of puddler, simultaneously the desulfurizing agent falls from throwing the mouth (strip opening) when falling, it also is the strip form on the vortex face, generally demonstrate conical structure to the vortex, the blanking position of desulfurizing agent can be full of whole vortex face this moment, thereby let the effect that the mixture was thrown the material more outstanding. The utility model can obtain better feeding surface, improves the desulfurizing effect of molten iron and reduces the production cost.
Drawings
FIG. 1 is a schematic view of a KR desulfurization device for molten iron pretreatment according to an embodiment of the present utility model;
FIG. 2 is a schematic view of the blanking bar of FIG. 1;
FIG. 3 is a state diagram of the receiving of the blanking bar;
FIG. 4 is a state diagram of the feeding of the blanking rod;
in the figure, a ladle 1, an upper cover 2, a dust removing air pipe 3, a stirring rod 4, a cross stirring head 5, a feeding port 6, a storage box 7, a feeding rod 8, a driven gear 9, a bevel gear 10 and a feeding groove 11 are arranged.
Detailed Description
The utility model is described in further detail below with reference to the embodiments of the drawings.
As shown in fig. 1 and 2, a KR desulfurization device for pretreatment of molten iron in this embodiment includes a ladle 1, an upper cover 2 is provided on a top end of the ladle 1, and installation and removal of the upper cover 2 can be achieved by a hoisting device. The stirring hole is formed in the center of the upper cover 2, the shaft seat is arranged in the stirring hole, the stirring rod 4 which is vertically arranged is arranged in the shaft seat in a penetrating mode, the stirring rod 4 is sleeved with a bearing in the shaft seat, the shaft seat plays a role in bearing rotation on the stirring rod 4, and the stirring rod is hoisted in a continuous mode when the upper cover is hoisted. The lower end of the stirring rod is provided with an integrally formed cross stirring head 5. The stirring rod 4 is driven to rotate by using external power equipment, so that the cross stirring head 5 stirs molten iron and forms a vortex shape at the center of the molten iron. The upper cover 2 is provided with a feed inlet 6, the feed inlet 6 is in butt joint with the outlet of the storage box 7, and the powdery desulfurizing agent is stored in the storage box 7. A feeding rod 8 is horizontally arranged in the storage box 7 in a penetrating way, and the feeding rod 8 is perpendicular to the stirring rod 4. The surface of the feeding rod 8 is provided with a feeding groove 2, and the feeding groove 2 is axially arranged along the feeding rod 8. The periphery of the stirring rod 4 is provided with a bevel gear 10, the end part of the feeding rod 8 close to the stirring rod 4 is provided with a driven gear 9, and the bevel gear 10 is meshed with the driven gear 9. The stirring rod is driven to rotate through external power equipment, the bevel gear is driven to rotate, the driven gear and the feeding rod rotate, and then the feeding groove is switched between upward material receiving at the opening and downward material feeding at the opening, so that intermittent feeding is formed.
The feeding port is square, the length of the feeding port is two thirds of the radius of the ladle, and the blanking range can cover a larger vortex surface. The inner cavity of the storage box is of a rectangular structure, and the outlet of the storage box is matched with the feeding port. The diameter of the blanking rod is matched with the width of the storage box, so that the blanking rod has a material blocking effect on the storage box.
The upper cover 2 is provided with a smoke discharge port which is connected with a dust removing air pipe 3 which is used for being connected with an external fan, and smoke generated in the reaction process is extracted by using an air draft mode.
As shown in fig. 3 and 4, when the stirring rod rotates, the bevel gear rotates to drive the driven gear to rotate, so that the blanking rod rotates, the feeding groove is in the process of rotating the blanking rod, when the opening of the feeding groove faces upwards, the desulfurizing agent falls into the feeding groove, after a certain angle of rotation, the opening of the feeding groove faces downwards, the desulfurizing agent in the feeding groove can fall down, intermittent feeding is integrally realized, and the intermittent feeding is realized based on the transmission connection of the stirring rod, and meanwhile, when the desulfurizing agent falls down from the feeding opening (strip opening), the desulfurizing agent falls on the vortex surface and also takes a strip shape, generally approximately presents a conical structure aiming at vortex, and the blanking position of the desulfurizing agent can be paved on the whole vortex surface, so that the effect of mixed feeding is more excellent. The utility model can obtain better feeding surface, improves the desulfurizing effect of molten iron and reduces the production cost.
In addition to the above embodiments, the present utility model also includes other embodiments, and all technical solutions that are formed by equivalent transformation or equivalent substitution should fall within the protection scope of the claims of the present utility model.
Claims (6)
1. KR desulphurization unit for pretreatment of molten iron, its characterized in that: the stirring device comprises a ladle, wherein an upper cover is arranged on the top end cover of the ladle, a stirring hole is formed in the center of the upper cover, a stirring rod which is vertically arranged is arranged in the stirring hole in a penetrating manner, a stirring head is arranged at the bottom end of the stirring rod, the stirring head is arranged in the ladle, the stirring rod is driven to rotate, and the stirring head is driven to stir molten iron; the upper cover is provided with a feeding port, the feeding port is in butt joint with an outlet of the storage box, an intermittent feeding unit is arranged in the storage box, and the intermittent feeding unit intermittently drops the desulfurizing agent into the ladle through the feeding port.
2. The KR desulfurization device for molten iron pretreatment of claim 1, wherein: the intermittent feeding unit comprises a feeding rod, the feeding rod horizontally penetrates through the storage box, a feeding groove is formed in the surface of the feeding rod, and the feeding groove is axially arranged along the feeding rod; the feeding rod is driven to rotate, so that the feeding groove is switched between upward-opening material receiving and downward-opening feeding, and intermittent feeding is formed.
3. The KR desulfurization device for molten iron pretreatment of claim 2, wherein: the stirring rod periphery sets up the bevel gear, throw material stick one end and set up driven gear, bevel gear and driven gear mesh mutually.
4. The KR desulfurization device for molten iron pretreatment of claim 1, wherein: the material inlet is square, the inner cavity of the storage box is rectangular, and the outlet of the storage box is matched with the material inlet.
5. The KR desulfurization device for molten iron pretreatment of claim 1, wherein: the upper cover is provided with a smoke exhaust port which is connected with a dust removing air pipe.
6. The KR desulfurization device for molten iron pretreatment of claim 1, wherein: the stirring head and the stirring rod are integrally formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321175041.5U CN219861434U (en) | 2023-05-16 | 2023-05-16 | KR desulphurization unit for pretreatment of molten iron |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321175041.5U CN219861434U (en) | 2023-05-16 | 2023-05-16 | KR desulphurization unit for pretreatment of molten iron |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219861434U true CN219861434U (en) | 2023-10-20 |
Family
ID=88324719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321175041.5U Active CN219861434U (en) | 2023-05-16 | 2023-05-16 | KR desulphurization unit for pretreatment of molten iron |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219861434U (en) |
-
2023
- 2023-05-16 CN CN202321175041.5U patent/CN219861434U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |