Improved blast furnace molten iron tank

Abstract

The utility model relates to an improved blast furnace hot-metal bottle. The improved blast furnace hot-metal bottle comprises a shell (10), a lifting disc (21); a connecting cylinder (22); an upper guide hole (23); a lower guide hole (24); a drive plate (25); the driving disc (25) is controlled to move downwards to drive the connecting cylinder (22) and the lifting disc (21) to slide downwards along the inner wall of the shell (10) to the position, below the liquid level of molten iron, of molten iron to be taken out, the upper guide hole (23) is communicated with the lower guide hole (24), and the molten iron sequentially flows to the position above the lifting disc (21) from the lower guide hole (24) and the upper guide hole (23). And then the driving disc (25) is controlled to move upwards and block the upper guide hole (23), so that the upper guide hole (23) and the lower guide hole (24) are disconnected, then the molten iron taken out of the lifting disc (21) is poured out, the molten iron is quantitatively taken out by arranging relative movement of parts, the parts are not prone to being damaged, and the device is suitable for the high-temperature production environment.

Description

Technical Field

[0001] The utility model relates to the technical field of metallurgical equipment, in particular to an improved blast furnace molten iron tank. Background Art

[0002] The molten iron tank, also known as the ladle, is a special device used to hold and transport molten iron from a blast furnace when it is tapped. When the blast furnace is tapping iron, the molten iron flows out of the tap hole and is injected into the molten iron tank. A protective lining is provided inside the molten iron tank to protect the molten iron tank. At present, the molten iron is often poured out by dumping the molten iron tank, but due to the dumping method, most devices cannot accurately control the amount of molten iron poured out when the molten iron is poured out.

[0003] The Chinese utility model patent with the authorization announcement number CN218340999U discloses an integrated protective lining for a blast furnace molten iron tank. By aligning the flow holes on the closing plate and the rotating plate, and then moving the closing plate downward, the molten iron below the closing plate is quantitatively transferred to the top of the closing plate, thereby achieving precise control of the amount of molten iron poured out. However, the defect is that the rotating plate needs to rotate relative to the closing plate in the high-temperature molten iron, and the parts are easily damaged, making the device difficult to be used in high-temperature production environments. Utility Model Content

[0004] The technical problem to be solved by the utility model is that the rotating plate of the existing integrated blast furnace molten iron tank protecting the lining needs to rotate relative to the closing plate in the high-temperature molten iron, and the parts are easily damaged, making the device difficult to be used in high-temperature production environments.

[0005] In order to solve the above problems, the utility model provides an improved blast furnace molten iron ladle, comprising a shell containing molten iron, a lifting plate slidably installed inside the shell, a connecting tube fixed to the lower surface of the lifting plate, an upper guide hole corresponding to the connecting tube is opened on the lifting plate, a lower guide hole is opened on the side wall of the connecting tube, and a driving plate is slidably installed in the connecting tube for connecting the upper guide hole and the lower guide hole.

[0006] The improved blast furnace iron ladle provided by the utility model also has the following technical features:

[0007] A plurality of lower guide holes are evenly opened on the side wall of the connecting cylinder in the circumferential direction, and guide blocks sliding along the lower guide holes are arranged in the lower guide holes. The plurality of guide blocks are fixed to the outer circumferential surface of the driving disk and are evenly arranged along the circumference thereof.

[0008] A baffle is fixed to the lower end of the connecting cylinder, and the upper surface of the baffle can contact the lower surface of the driving disc.

[0009] The diameter of the upper guide hole is larger than the inner diameter of the connecting tube.

[0010] A motor is fixed on the top of the shell, the output shaft of the motor is fixed to the worm, the worm is meshed with the rack, the rack is fixed on the driving rod, the driving rod slides along the shell and passes through the upper guide hole, the bottom of the driving rod is fixed to the driving disk, and the driving rod is provided with scale lines.

[0011] The diameter of the driving rod is smaller than the diameter of the upper guide hole.

[0012] The driving rod is fixed to the guide rod, the guide rod slides along the vertical rail, and the vertical rail is fixed to the shell.

[0013] The cross section of the guide rod is dovetail-shaped, and the cross section of the vertical rail is dovetail-shaped matching the cross section of the guide rod.

[0014] The inner wall of the shell is provided with a fire-resistant layer, and two sliding nozzles are relatively fixed on the top of the shell.

[0015] The utility model has the following beneficial effects: by controlling the driving disk to move downward, the connecting tube and the lifting disk are driven to slide downward along the inner wall of the shell body to the position below the molten iron liquid level where the molten iron is to be taken out, the upper guide hole is connected with the lower guide hole, and the molten iron flows from the lower guide hole and the upper guide hole to above the lifting disk in sequence; then the driving disk is controlled to move upward and the upper guide hole is blocked to disconnect the upper guide hole from the lower guide hole, and then the molten iron taken out on the lifting disk is poured out, and the relative movement of the components is set to realize the quantitative removal of the molten iron, the components are not easily damaged, and the utility model is suitable for high-temperature production environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a partial cross-sectional view of the axonometric drawing of the utility model;

[0017] Figure 2 for Figure 1 Exploded view of some parts;

[0018] Figure 3 for Figure 1 The motion state change diagram. DETAILED DESCRIPTION

[0019] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments. It should be noted that the embodiments and features in the embodiments of the present invention can be combined with each other without conflict.

[0020] like Figures 1 to 3 As shown, the improved blast furnace iron ladle of the utility model comprises a shell 10 containing molten iron, a lifting plate 21 is slidably installed inside the shell 10, a connecting tube 22 is fixed on the lower surface of the lifting plate 21, an upper guide hole 23 corresponding to and connected with the connecting tube 22 is opened on the lifting plate 21, a lower guide hole 24 is opened on the side wall of the connecting tube 22, and a driving plate 25 is slidably installed in the connecting tube 22 for connecting the upper guide hole 23 with the lower guide hole 24.

[0021] The utility model controls the driving disk 25 to move downward, drives the connecting tube 22 and the lifting disk 21 to slide downward along the inner wall of the shell 10 to the position below the molten iron liquid level where the molten iron is to be taken out, the upper guide hole 23 is connected with the lower guide hole 24, and the molten iron flows from the lower guide hole 24 and the upper guide hole 23 to the lifting disk 21 in sequence; then controls the driving disk 25 to move upward and block the upper guide hole 23, so that the upper guide hole 23 is disconnected from the lower guide hole 24, and then pours out the molten iron taken out from the lifting disk 21. By setting the relative movement of parts to realize the quantitative removal of molten iron, the parts are not easily damaged, and it is suitable for high-temperature production environment.

[0022] Preferably, a plurality of lower guide holes 24 are uniformly opened on the side wall of the connecting tube 22 in the circumferential direction, and guide blocks 26 sliding along the lower guide holes 24 are provided in the lower guide holes 24 . The plurality of guide blocks 26 are fixed to the outer circumferential surface of the driving disk 25 and uniformly arranged along the circumference thereof.

[0023] The utility model provides a plurality of lower guide holes 24 to increase the speed at which molten iron flows from the lower guide holes 24 and the upper guide holes 23 in sequence, thereby improving work efficiency.

[0024] Preferably, a baffle 27 is fixed to the lower end of the connecting tube 22 , and the upper surface of the baffle 27 can contact the lower surface of the driving disk 25 .

[0025] Preferably, the diameter of the upper guide hole 23 is larger than the inner diameter of the connecting tube 22 .

[0026] Through the above arrangement, the utility model realizes that the driving plate 25 can slide upward along the connecting tube 22 until it contacts the lower surface of the lifting plate 21 and covers the upper guide hole 23, thereby disconnecting the upper guide hole 23 from the lower guide hole 24.

[0027] Preferably, a motor 31 is fixed on the top of the shell 10, the output shaft of the motor 31 is fixed to the worm 32, the worm 32 is meshed with the rack 33, the rack 33 is fixed on the driving rod 34, the driving rod 34 slides along the shell 10 and passes through the upper guide hole 23, the bottom of the driving rod 34 is fixed to the driving disk 25, and the driving rod 34 is provided with a scale line 35.

[0028] The utility model drives the worm 32 to rotate through the output shaft of the motor 31, drives the rack 33 and the driving rod 34 to slide up and down along the housing 10, so that the driving disk 25 can move up and down and has a self-locking function, and at the same time, the scale line 35 on the driving rod 34 can be used to read the indication of the amount of molten iron taken out.

[0029] The scale line 35 is related to parameters such as the diameter of the shell 10 and the thickness of the lifting plate 21. At the same time, the relative displacement of the driving plate 25 and the connecting tube 22 should be considered during the setting. The specific setting is the existing technology and will not be repeated here.

[0030] Preferably, the diameter of the driving rod 34 is smaller than the diameter of the upper guide hole 23 .

[0031] Through the above arrangement, the utility model enables the molten iron to flow from the gap between the upper guide hole 23 and the driving rod 34 to the lifting plate 21 .

[0032] Preferably, the driving rod 34 is fixed to the guide rod 36 , the guide rod 36 slides along the vertical rail 37 , and the vertical rail 37 is fixed to the housing 10 .

[0033] Preferably, the cross section of the guide rod 36 is dovetail-shaped, and the cross section of the vertical rail 37 is dovetail-shaped to match the cross section of the guide rod 36 .

[0034] Of course, the guide rod 36 and the vertical rail 37 may also be in other shapes such as T-shaped, I-shaped, etc. with matching cross-sections to avoid failure of the connection between the two.

[0035] Preferably, the inner wall of the shell 10 is provided with a fire-resistant layer, and two slide nozzles 11 are relatively fixed on the top of the shell 10.

[0036] The working principle of the utility model is as follows:

[0037] When the molten iron in the housing 10 is not needed, the lifting plate 21 is located above the molten iron level in the housing 10. Under the action of the gravity of the lifting plate 21 and the connecting tube 22, the upper surface of the driving plate 25 is in contact with the lower surface of the lifting plate 21. Figure 3 ;

[0038] When it is necessary to take the molten iron in the shell 10, the motor 31 is started, and the output shaft of the motor 31 drives the worm 32 to rotate, drives the rack 33 and the driving rod 34 to slide downward along the shell 10, drives the driving plate 25 to move downward, drives the connecting tube 22 and the lifting plate 21 to slide downward along the inner wall of the shell 10, until the lower surface of the lifting plate 21 contacts the molten iron liquid surface; the driving plate 25 continues to move downward until its lower surface contacts the upper surface of the baffle 27; the driving plate 25 continues to move downward, driving the lifting plate 21 to continue to slide downward along the inner wall of the shell 10. In this process, the upper guide hole 23 and the lower guide hole 24 are gradually connected, and the molten iron below the lifting plate 21 flows from the lower guide hole 24 and the upper guide hole 23 to above the lifting plate 21 in turn, and the quantitative taking of molten iron is confirmed by the scale line 35 on the driving rod 34. Figure 1 Then control the output shaft of the motor 31 to rotate in the opposite direction, so that the drive plate 25 moves upward until its upper surface contacts the lower surface of the lifting plate 21, that is, the upper guide hole 23 is blocked, so that the upper guide hole 23 is disconnected from the lower guide hole 24, such as Figure 3 At this time, the molten iron taken out from the lifting plate 21 is poured out through the nozzle 11; the utility model realizes quantitative removal of molten iron by setting relative movement of parts, and the parts are not easily damaged, and is suitable for high-temperature production environments.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. An improved blast furnace iron ladle, comprising a shell (10) containing iron liquid, characterized in that: A lifting plate (21) is slidably mounted inside the housing (10), a connecting tube (22) is fixed to the lower surface of the lifting plate (21), an upper guide hole (23) corresponding to and connected to the connecting tube (22) is formed on the lifting plate (21), a lower guide hole (24) is formed on the side wall of the connecting tube (22), and a driving plate (25) is slidably mounted inside the connecting tube (22) for connecting the upper guide hole (23) and the lower guide hole (24).

2. The improved blast furnace iron ladle according to claim 1, characterized in that: A plurality of lower guide holes (24) are uniformly formed on the side wall of the connecting cylinder (22) in the circumferential direction, and guide blocks (26) are provided in the lower guide holes (24) for sliding along the lower guide holes. The plurality of guide blocks (26) are fixed to the outer circumferential surface of the driving disk (25) and are uniformly arranged along the circumference thereof.

3. The improved blast furnace iron ladle according to claim 1, characterized in that: A baffle (27) is fixed to the lower end of the connecting cylinder (22), and the upper surface of the baffle (27) is capable of contacting the lower surface of the driving disk (25).

4. The improved blast furnace iron ladle according to claim 1, characterized in that: The diameter of the upper guide hole (23) is greater than the inner diameter of the connecting tube (22).

5. The improved blast furnace iron ladle according to claim 1, characterized in that: A motor (31) is fixed to the top of the housing (10); an output shaft of the motor (31) is fixed to a worm (32); the worm (32) is meshed with a rack (33); the rack (33) is fixed to a driving rod (34); the driving rod (34) slides along the housing (10) and passes through an upper guide hole (23); the bottom of the driving rod (34) is fixed to a driving disk (25); and a scale mark (35) is provided on the driving rod (34).

6. The improved blast furnace iron ladle according to claim 5, characterized in that: The diameter of the driving rod (34) is smaller than the diameter of the upper guide hole (23).

7. The improved blast furnace iron ladle according to claim 5, characterized in that: The driving rod (34) is fixed to the guide rod (36), the guide rod (36) slides along the vertical rail (37), and the vertical rail (37) is fixed to the housing (10).

8. The improved blast furnace iron ladle according to claim 7, characterized in that: The cross section of the guide rod (36) is in a dovetail shape, and the cross section of the vertical rail (37) is in a dovetail shape matching the cross section of the guide rod (36).

9. The improved blast furnace iron ladle according to claim 1, characterized in that: The inner wall of the shell (10) is provided with a fire-resistant layer, and two sliding nozzles (11) are relatively fixed on the top of the shell (10).

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