KR desulfurization device for molten iron pretreatment

Abstract

The utility model discloses a KR desulfurization device for molten iron pretreatment, which comprises a ladle, a first top plate is mounted at the top of the ladle in an overturning manner, a second top plate is further mounted at the top of the ladle, a smoke removal pipe is mounted on the first top plate, and desulfurization slag treatment mechanisms are arranged inside and outside the ladle. The desulfurization slag treatment mechanisms can treat desulfurization slag generated by molten iron KR desulfurization, and relates to the technical field of smelting equipment. The desulfurization slag treatment mechanisms are arranged inside and outside a ladle, the desulfurization slag generated by molten iron desulfurization is collected through a slag collection tank, and a transfer pump sucks the desulfurization slag through a slag inlet pipe; desulfurization slag and molten iron evenly fall onto the filter plate through the slag outlet pipe, accumulation of the desulfurization slag is avoided, the molten iron and the desulfurization slag are filtered through the filter plate, the desulfurization slag in the ladle is cleaned in time, and the desulfurization slag is not accumulated in the ladle.

Description

Technical Field

[0001] The utility model relates to the field of smelting equipment, in particular to a KR desulfurization device for molten iron pretreatment. Background Art

[0002] The KR desulfurization method is a common pretreatment desulfurization method for molten iron. The existing KR desulfurization equipment is usually composed of a ladle, an upper cover, a stirring device and a desulfurizer feeding device. According to the patent office database search, the publication number CN219861434U is a KR desulfurization device for molten iron pretreatment. The feeding trough opening is upward, and the desulfurizer falls into the feeding trough; the feeding trough opening is downward, and the desulfurizer in the feeding trough can fall, showing intermittent feeding. When the desulfurizer falls from the feeding port, it also falls on the vortex surface in a strip shape. The falling position of the desulfurizer will cover the entire vortex surface, thereby making the mixed feeding effect more outstanding. However, desulfurization slag will be generated during the desulfurization process of the molten iron in the ladle. The desulfurization slag remains in the ladle and is inconvenient to clean.

[0003] Therefore, it is necessary to propose a KR desulfurization device for molten iron pretreatment. Utility Model Content

[0004] The purpose of the utility model is to provide a KR desulfurization device for molten iron pretreatment to solve the problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A KR desulfurization device for molten iron pretreatment, comprising a ladle, a first top plate being mounted on the top of the ladle, a second top plate being mounted on the top of the ladle, a smoke removal pipe being mounted on the first top plate, and desulfurization slag treatment mechanisms being provided inside and outside the ladle, capable of treating desulfurization slag generated by KR desulfurization of the molten iron.

[0007] The second top plate is provided with a desulfurization mechanism, which can perform KR desulfurization on the molten iron pretreatment;

[0008] The desulfurization slag processing mechanism includes a slag collecting tank, a slag feeding pipe and a slag feeding port. The slag collecting tank is provided at the bottom of the ladle, the slag feeding pipe is installed inside the slag collecting tank, and the slag feeding port is installed at the bottom of the slag feeding pipe.

[0009] Preferably, a processing box is installed at the front end of the ladle, a material extraction pump is installed at the side end of the ladle, and the liquid inlet end of the material extraction pump is connected to the slag inlet pipe.

[0010] Preferably, a slag discharge pipe is installed inside the upper end of the processing box, a slag discharge port is installed at the bottom of the slag discharge pipe, and one end of the slag discharge pipe and the liquid outlet end of the feed pump are connected to a liquid delivery pipe.

[0011] Preferably, a filter plate is clamped inside the processing box, a sealing plate is installed at the side end of the processing box, and a drain pipe is installed at the bottom of the processing box.

[0012] Preferably, the desulfurization mechanism includes a material box, a feeding rod and a first bevel gear, the material box is mounted on the upper end of the second top plate, the feeding rod is rotatably mounted inside the material box, and the first bevel gear is mounted on one end of the feeding rod.

[0013] Preferably, a rotating rod is rotatably installed inside the ladle, a stirring plate is installed at the lower end of the rotating rod, a support frame is also installed at the upper end of the second top plate, a motor is installed on the support frame, and the output end of the motor is connected to the upper end of the rotating rod.

[0014] Preferably, a second helical gear is installed on the outer wall of the rotating rod, and the side end of the second helical gear is meshedly connected to the first helical gear.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention.

[0016] Beneficial effects:

[0017] By setting up desulfurization slag treatment mechanisms inside and outside the ladle, the desulfurization slag produced by molten iron desulfurization is gathered through the slag trough, and the suction pump sucks the desulfurization slag through the slag inlet pipe, and then the desulfurization slag and molten iron are evenly dropped onto the filter plate through the slag discharge pipe to avoid the accumulation of desulfurization slag. The molten iron and desulfurization slag are filtered through the filter plate, and the desulfurization slag in the ladle is cleaned in time to prevent the accumulation of desulfurization slag in the ladle. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of a KR desulfurization device for molten iron pretreatment;

[0019] Figure 2 A schematic diagram of a KR desulfurization device for molten iron pretreatment;

[0020] Figure 3 This is a front view of a KR desulfurization device for molten iron pretreatment;

[0021] Figure 4 This is a structural diagram of a ladle in a KR desulfurization device for molten iron pretreatment;

[0022] Figure 5 This is a schematic diagram of a slag inlet pipe in a KR desulfurization device for molten iron pretreatment;

[0023] Figure 6 This is a schematic diagram of a slag tapping pipe in a KR desulfurization device for molten iron pretreatment.

[0024] In the figure: 1. molten iron ladle; 11. First top plate; 12. Second top plate; 13. Smoke removal pipe; 2. Desulfurization slag treatment mechanism; 21. Slag trough; 22. Slag inlet pipe; 23. Slag inlet port; 24. Treatment box; 241. Sealing plate; 25. Feed pump; 26. Liquid infusion pipe; 27. Slag discharge pipe; 271. Slag discharge port; 28. Liquid discharge pipe; 29. ​​Filter plate; 3. Desulfurization mechanism; 31. Material box; 32. Feed rod; 33. First bevel gear; 34. Second bevel gear; 35. Support frame; 36. Rotating rod; 37. Motor; 38. Stirring plate. DETAILED DESCRIPTION

[0025] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0026] like Figures 1-6 ;

[0027] The ladle 1 includes a first top plate 11 which is installed on the top of the ladle 1 and can be flipped open. A second top plate 12 is also installed on the top of the ladle 1 and cannot be opened. The second top plate 12 is used to support and install a support frame 35 and a material box 31. A smoke removal pipe 13 is installed on the first top plate 11. Smoke generated by the KR desulfurization pretreatment of the molten iron is discharged through the smoke removal pipe 13. A desulfurization slag treatment mechanism 2 is provided inside and outside the ladle 1. The desulfurization slag treatment mechanism 2 can treat the desulfurization slag generated by the KR desulfurization of the molten iron. A desulfurization mechanism 3 is provided on the second top plate 12. The desulfurization mechanism 3 can desulfurize the molten iron pretreatment with KR.

[0028] The desulfurization slag processing mechanism 2 includes a slag collecting tank 21, a slag inlet pipe 22 and a slag inlet port 23. The slag collecting tank 21 is provided at the bottom of the ladle 1. After the molten iron in the ladle 1 is desulfurized and allowed to stand, the desulfurization slag falls into the slag collecting tank 21 and is collected. The slag inlet pipe 22 is installed on the inner side of the slag collecting tank 21, and the slag inlet port 23 is installed at the bottom of the slag inlet pipe 22. The desulfurization slag in the slag collecting tank 21 is sucked into the slag inlet pipe 22 through the slag inlet port 23, and then enters the extraction pump 25 through the slag inlet pipe 22.

[0029] Furthermore, a processing box 24 is installed at the front end of the ladle 1, and a pumping pump 25 is installed at the side end of the ladle 1. The pumping pump 25 extracts the desulfurized slag and molten iron in the slag inlet pipe 22 and delivers them into the slag discharge pipe 27 through the liquid delivery pipe 26. The liquid inlet end of the pumping pump 25 is connected to the slag inlet pipe 22.

[0030] Furthermore, a slag discharge pipe 27 is installed inside the upper end of the processing box 24, and a slag discharge port 271 is installed at the bottom of the slag discharge pipe 27. The desulfurized slag and molten iron in the slag discharge pipe 27 fall evenly onto the filter plate 29 through the slag discharge port 271. One end of the slag discharge pipe 27 and the liquid outlet end of the pump 25 are connected to the liquid delivery pipe 26.

[0031] Furthermore, a filter plate 29 is clamped inside the processing box 24, through which the molten iron and desulfurization slag are filtered, and the molten iron falls into the bottom of the processing box 24. A sealing plate 241 is installed at the side end of the processing box 24. The sealing plate 241 can be opened to facilitate the removal and cleaning of the filter plate 29. A drain pipe 28 is installed at the bottom of the processing box 24. A valve is provided on the drain pipe 28. The molten iron collected in the processing box 24 is discharged through the drain pipe 28.

[0032] Furthermore, the desulfurization mechanism 3 includes a material box 31, a feeding rod 32 and a first bevel gear 33. The material box 31 is installed at the upper end of the second top plate 12. The material box 31 is used to store desulfurizer. The feeding rod 32 is rotatably installed inside the material box 31. A feeding trough is provided on the feeding rod 32. When the feeding rod 32 rotates, the feeding trough on the feeding rod 32 brings the desulfurizer in the material box 31 into the molten iron ladle 1 and mixes it evenly with the molten iron to assist in desulfurization of the molten iron. The first bevel gear 33 is installed at one end of the feeding rod 32. After the first bevel gear 33 rotates, it is used to drive the feeding rod 32 to rotate.

[0033] Furthermore, a rotating rod 36 is installed for rotation inside the ladle 1, and a stirring plate 38 is installed at the lower end of the rotating rod 36. The stirring plate 38 rotates in the ladle 1 to stir and mix the molten iron and desulfurizer in the ladle 1 to accelerate the desulfurization of the molten iron. A support frame 35 is also installed at the upper end of the second top plate 12, and a motor 37 is installed on the support frame 35. The output end of the motor 37 is connected to the upper end of the rotating rod 36. The motor 37 drives the rotating rod 36 to rotate, and the rotating rod 36 drives the stirring plate 38 and the second bevel gear 34 to rotate. The second bevel gear 34 is installed on the outer wall of the rotating rod 36. The side end of the second bevel gear 34 is meshed and connected to the first bevel gear 33. After the second bevel gear 34 rotates, it drives the first bevel gear 33 to rotate.

[0034] The working principle of the present invention is as follows: the first top plate 11 is opened, molten iron is added to the ladle 1, the motor 37 drives the rotating rod 36 to rotate, the rotating rod 36 drives the stirring plate 38 and the second bevel gear 34 to rotate, the second bevel gear 34 drives the first bevel gear 33 to rotate, the first bevel gear 33 drives the feeding rod 32 to rotate, the feeding rod 32 rotates, the feeding trough on the feeding rod 32 brings the desulfurizer in the material box 31 into the ladle 1 and drops it into the ladle 1 and mixes it evenly with the molten iron to assist in desulfurization of the molten iron, the stirring plate 38 rotates in the ladle 1, stirs and mixes the molten iron and the desulfurizer in the ladle 1, accelerates the desulfurization of the molten iron, and the smoke generated by the molten iron KR desulfurization pretreatment passes through The molten iron in the ladle 1 is desulfurized and allowed to stand for a while, and the desulfurized slag falls into the slag trough 21 and gathers. The desulfurized slag in the slag trough 21 is sucked into the slag inlet pipe 22 through the slag inlet 23, and the suction pump 25 extracts the desulfurized slag and molten iron in the slag inlet pipe 22 and sends them into the slag discharge pipe 27 through the liquid infusion pipe 26. The desulfurized slag and molten iron in the slag discharge pipe 27 fall evenly onto the filter plate 29 through the slag discharge port 271 to avoid the accumulation of desulfurized slag. The molten iron and desulfurized slag are filtered by the filter plate 29, and the molten iron falls into the bottom of the treatment box 24. The sealing plate 241 can be opened to facilitate the removal and cleaning of the filter plate 29. Finally, the molten iron collected in the treatment box 24 is opened and discharged through the drain pipe 28.

[0035] While the present invention has been described above with reference to specific embodiments, various modifications may be made and equivalent components may be substituted without departing from the scope of the present invention. In particular, as long as no structural conflicts exist, the various features of the embodiments disclosed herein may be combined with one another in any manner, and the omission of an exhaustive description of these combinations in this specification is solely for the sake of space and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions within the scope of the claims.

Claims

1. A KR desulfurization device for molten iron pretreatment, comprising a ladle (1), a first top plate (11) being installed on the top of the ladle (1), a second top plate (12) being installed on the top of the ladle (1), a smoke removal pipe (13) being installed on the first top plate (11), and characterized in that: Desulfurization slag processing mechanisms (2) are provided inside and outside the molten iron ladle (1), and the desulfurization slag processing mechanisms (2) are capable of processing desulfurization slag generated by desulfurization of the molten iron KR; A desulfurization mechanism (3) is provided on the second top plate (12), and the desulfurization mechanism (3) is capable of performing KR desulfurization on the molten iron pretreatment; The desulfurization slag processing mechanism (2) comprises a slag collecting trough (21), a slag inlet pipe (22) and a slag inlet port (23); the slag collecting trough (21) is provided at the bottom of the molten iron ladle (1); the slag inlet pipe (22) is installed inside the slag collecting trough (21); and the slag inlet port (23) is installed at the bottom of the slag inlet pipe (22).

2. The KR desulfurization device for molten iron pretreatment according to claim 1, characterized in that: A processing box (24) is installed at the front end of the ladle (1), a material extraction pump (25) is installed at the side end of the ladle (1), and the liquid inlet end of the material extraction pump (25) is connected to the slag inlet pipe (22).

3. The KR desulfurization device for molten iron pretreatment according to claim 2, characterized in that: A slag discharge pipe (27) is installed inside the upper end of the processing box (24), a slag discharge port (271) is installed at the bottom of the slag discharge pipe (27), and one end of the slag discharge pipe (27) and the liquid outlet end of the pumping pump (25) are connected to a liquid delivery pipe (26).

4. The KR desulfurization device for molten iron pretreatment according to claim 2, characterized in that: The filter plate (29) is clamped inside the processing box (24), a sealing plate (241) is installed at the side end of the processing box (24), and a drain pipe (28) is installed at the bottom of the processing box (24).

5. The KR desulfurization device for molten iron pretreatment according to claim 1, characterized in that: The desulfurization mechanism (3) includes a material box (31), a feeding rod (32) and a first bevel gear (33); the material box (31) is mounted on the upper end of the second top plate (12); the feeding rod (32) is rotatably mounted inside the material box (31); and the first bevel gear (33) is mounted on one end of the feeding rod (32).

6. The KR desulfurization device for molten iron pretreatment according to claim 5, characterized in that: A rotating rod (36) is rotatably installed inside the ladle (1), a stirring plate (38) is installed at the lower end of the rotating rod (36), and a support frame (35) is also installed at the upper end of the second top plate (12). A motor (37) is installed on the support frame (35), and the output end of the motor (37) is connected to the upper end of the rotating rod (36).

7. The KR desulfurization device for molten iron pretreatment according to claim 6, characterized in that: A second helical gear (34) is installed on the outer wall of the rotating rod (36), and a side end of the second helical gear (34) is meshedly connected to the first helical gear (33).

Images