Drainage sand device for molten steel tank maintenance

Abstract

The utility model belongs to the technical field of steelmaking equipment, particularly relates to a drainage sand device for overhauling a molten steel tank, and aims to solve the problems that a funnel is not aligned with a brick cup and the brick cup is not fully filled in the background technology, the following scheme is provided: the drainage sand device comprises a hot repair platform, and the outer wall of the top of the hot repair platform is fixedly connected with an electric guide rail through a bolt; and a winch is fixedly connected to the electric guide rail sliding block. According to the quick sand filling device, the charging bucket is quickly adjusted to be aligned with a nozzle brick cup, the nozzle brick cup can be filled when drainage sand is filled, the filling effect is good, the ejector pin drives the lead weight sealing block to move up and down so that the drainage sand can be controlled to penetrate through the funnel partition plate from the feeding chamber to enter the discharging chamber, and by means of optimization of the quick sand filling device, the filling efficiency is improved. The flow guiding sand is prevented from drifting and shifting, the flow guiding sand ingredient composition is prevented from changing by shortening the movement stroke of the flow guiding sand, and it is guaranteed that composition materials are evenly mixed, so that the self-pouring rate of the molten steel tank is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of steelmaking equipment, in particular to a sand drainage device for repairing a molten steel tank. Background Art

[0002] With the continuous increase in the proportion of high-end steel grades, the purity requirements for molten steel are getting higher and higher. The refining time of most steel grades is constantly extending, which has caused the ladle self-opening rate to decline. When the ladle is not self-opening, burning oxygen and draining will cause secondary oxidation of molten steel, seriously affecting the quality of steel grades and becoming a bottleneck restricting the production of high-end products.

[0003] The failure of the molten steel tank to pour itself is a major problem that plagues steel mills. The main factor affecting the self-pouring is the index of the drainage sand itself, and the other most important factor is the filling state of the drainage sand in the sprue seat brick. How to accurately add the drainage sand to the seat brick is a very important task. If the filling state of the drainage sand is not good, it will directly lead to the failure of the molten steel tank to pour itself.

[0004] The main ingredients of drainage sand are chrome sand, quartz sand, and a small amount of graphite for lubrication. The existing drainage sand filling process uses a funnel for filling. The above raw materials have different particles and specific gravities. During the filling process, affected by factors such as heat waves in the tank, some raw materials will float away, resulting in changes in the composition of the drainage sand actually filled into the seat bricks. If the funnel is not aligned with the seat bricks, the seat bricks may not be filled. Utility Model Content

[0005] In view of the deficiencies of the prior art, the utility model provides a sand drainage device for repairing a molten steel tank, which overcomes the deficiencies of the prior art and effectively solves the problem that the funnel and the seat bricks are not aligned and the seat bricks are not fully filled.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A sand drainage device for repairing a molten steel tank comprises a hot repair platform, the top outer wall of the hot repair platform is fixedly connected to an electric guide rail by bolts, and a winch is fixedly connected to the electric guide rail slider, one end of the steel wire rope of the winch is fixedly connected to an iron chain, and a material tank is hung on the bottom outer wall of the iron chain, a lower hopper is provided on the bottom outer wall of the material tank, and a camera is installed on the outer wall of one side of the lower hopper, a funnel partition is welded to the inner wall of the material tank, and a lead sinker sealing block is placed on the bottom inner wall of the funnel partition, and a thimble is welded to the bottom outer wall of the lead sinker sealing block.

[0008] Preferably, a feeding pipe is welded to the outer wall of the bottom of the funnel partition.

[0009] Preferably, a discharge pipe is welded to the outer wall of the bottom of the discharge hopper.

[0010] Preferably, a loading chamber and a unloading chamber are respectively provided at the top and bottom of the funnel partition inside the material tank.

[0011] Preferably, a molten steel tank body is arranged outside the material tank, and symmetrically distributed water inlet seat bricks are installed on the inner wall of the bottom of the molten steel tank body.

[0012] Preferably, the ejector pin is arranged to penetrate inside the upper material tube and the lower material tube.

[0013] Preferably, the top of the outer wall of the material tank is welded with hanging rings distributed at equal distances, and the outer wall of the bottom of the iron chain is fixedly connected with symmetrically distributed hooks, and the hooks are hung on the inner walls of the hanging rings.

[0014] The beneficial effects of the utility model are:

[0015] 1. The drainage sand device for the maintenance of the molten steel tank designed in this invention can connect the drainage sand tank to the winch on the hot repair platform through an iron chain, and use a camera to determine the position of the tank. The electric guide rail drives the winch to move horizontally, so as to quickly adjust the tank to align with the nozzle seat brick, ensuring that the nozzle seat brick can be filled when the drainage sand is filled, and the filling effect is good;

[0016] 2. The drainage sand device for the maintenance of the molten steel tank designed in this invention can control the drainage sand from the loading chamber through the funnel partition into the unloading chamber by driving the lead sinker sealing block up and down through the ejector pin. The quicksand filling device is optimized to prevent the drainage sand from drifting and shifting. The movement stroke of the drainage sand is shortened to prevent the composition of the drainage sand from changing, thereby ensuring that the composition materials are mixed evenly, thereby improving the self-pouring rate of the molten steel tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the construction process of a sand drainage device for repairing a molten steel tank proposed by the utility model;

[0018] Figure 2 A schematic diagram of the connection structure of a hot repair platform of a sand drainage device for repairing a molten steel tank proposed by the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of a material tank of a sand drainage device for repairing a molten steel tank proposed by the utility model;

[0020] Figure 4 The utility model discloses a cross-sectional view of a material tank and a funnel partition of a sand drainage device for repairing a molten steel tank.

[0021] In the figure: 1. hot repair platform; 2. electric guide rail; 3. winch; 4. iron chain; 5. material tank; 6. lower hopper; 7. camera; 8. funnel partition; 9. lead sinker sealing block; 10. ejector pin; 11. feeding pipe; 12. lowering pipe; 13. feeding chamber; 14. lowering chamber; 15. molten steel tank body; 16. nozzle seat brick. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] Embodiment 1, refer to Figures 1 to 3 A sand drainage device for repairing a molten steel tank comprises a hot repair platform 1, the top outer wall of the hot repair platform 1 is fixedly connected to an electric guide rail 2 by bolts, and a winch 3 is fixedly connected to a slider of the electric guide rail 2, one end of a steel wire rope of the winch 3 is fixedly connected to an iron chain 4, and a material tank 5 is hung on the bottom outer wall of the iron chain 4, a lower hopper 6 is arranged on the bottom outer wall of the material tank 5, and a camera 7 is installed on the outer wall of one side of the lower hopper 6.

[0024] In this embodiment, the winch 3 located on the hot repair platform 1 can be connected to the drainage sand tank 5 through the iron chain 4, and the camera 7 is used to determine the position of the tank 5. The electric guide rail 2 drives the winch 3 to move horizontally, so as to quickly adjust the tank 5 so that the tank 5 is aligned with the nozzle seat brick 16, ensuring that the nozzle seat brick 16 can be filled when filling the drainage sand, and the filling effect is good.

[0025] Example 2, refer to Figure 4 A sand drainage device for repairing a molten steel tank, a funnel partition 8 is welded on the inner wall of a material tank 5, a lead sinker sealing block 9 is placed on the inner wall at the bottom of the funnel partition 8, and a thimble 10 is welded on the outer wall at the bottom of the lead sinker sealing block 9.

[0026] In this embodiment, the lead sinker sealing block 9 is driven up and down by the ejector pin 10 to control the drainage sand to pass through the funnel partition 8 from the loading chamber 13 into the unloading chamber 14. The quicksand filling device is optimized to prevent the drainage sand from drifting and deflecting, and the movement stroke of the drainage sand is shortened to prevent the composition of the drainage sand from changing, thereby ensuring that the composition materials are mixed evenly, thereby improving the self-pouring rate of the molten steel tank.

[0027] Reference Figure 4 A feeding pipe 11 is welded to the outer wall of the bottom of the funnel partition 8.

[0028] Reference Figure 3 A discharge pipe 12 is welded to the outer wall of the bottom of the discharge hopper 6 .

[0029] Reference Figures 3 to 4A loading chamber 13 and a unloading chamber 14 are respectively provided at the top and bottom of the funnel partition 8 inside the material tank 5.

[0030] Reference Figure 1 A molten steel tank body 15 is arranged outside the material tank 5, and symmetrically distributed water inlet seat bricks 16 are installed on the inner wall at the bottom of the molten steel tank body 15.

[0031] Reference Figures 3 to 4 The ejector pin 10 is disposed through the interior of the upper material tube 11 and the lower material tube 12 .

[0032] Reference Figure 2 The top of the outer wall of the material tank 5 is welded with hanging rings distributed at equal distances, and the outer wall of the bottom of the iron chain 4 is fixedly connected with symmetrically distributed hooks, which are hung on the inner wall of the hanging ring.

[0033] Working principle: first, use the winch 3 to collect the material tank 5 onto the hot repair platform 1, and then add the drainage sand into the loading chamber 13 of the material tank 5, and use the winch 3 to drive the material tank 5 to move down to the top of the nozzle seat brick 16 of the molten steel tank body 15, and observe the position of the material tank 5 according to the camera 7, and use the electric guide rail 2 to drive the material tank 5 to move horizontally to fine-tune the horizontal position of the winch 3, align the discharge pipe 12 with the center of the nozzle seat brick 16, and then use the winch 3 to continue to lower the material tank 5. When the ejector pin 10 hits the large tank slide inside the nozzle seat brick 16, the ejector pin 10 moves up, the loading pipe 11 at the bottom of the funnel partition 8 opens, and the drainage sand enters the discharge chamber 14. After the drainage sand completely enters the discharge chamber 14, the material tank 5 is lifted by the winch 3, and the drainage sand completely enters the nozzle seat brick 16 by its own weight.

[0034] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A sand drainage device for repairing a molten steel tank, comprising a hot repair platform (1), characterized in that: The top outer wall of the thermal repair platform (1) is fixedly connected to an electric guide rail (2) by bolts, and a winch (3) is fixedly connected to a slider of the electric guide rail (2), one end of a steel wire rope of the winch (3) is fixedly connected to an iron chain (4), and a material tank (5) is hung on the bottom outer wall of the iron chain (4), a lower hopper (6) is provided on the bottom outer wall of the material tank (5), and a camera (7) is installed on one side outer wall of the lower hopper (6), a funnel partition (8) is welded to the inner wall of the material tank (5), and a plumb seal block (9) is placed on the bottom inner wall of the funnel partition (8), and a thimble (10) is welded to the bottom outer wall of the plumb seal block (9).

2. The sand drainage device for steel ladle maintenance according to claim 1 is characterized in that: A feeding pipe (11) is welded to the outer wall of the bottom of the funnel partition (8).

3. The sand drainage device for steel ladle maintenance according to claim 1, characterized in that: A discharge pipe (12) is welded to the outer wall of the bottom of the discharge hopper (6).

4. The sand drainage device for steel ladle maintenance according to claim 1, characterized in that: A loading chamber (13) and a unloading chamber (14) are respectively arranged at the top and bottom of the funnel partition (8) inside the material tank (5).

5. The sand drainage device for steel ladle maintenance according to claim 1, characterized in that: A molten steel tank body (15) is arranged outside the material tank (5), and symmetrically distributed nozzle seat bricks (16) are installed on the inner wall of the bottom of the molten steel tank body (15).

6. The sand drainage device for steel ladle maintenance according to claim 1, characterized in that: The ejector pin (10) is arranged to penetrate inside the upper material tube (11) and the lower material tube (12).

7. The sand drainage device for steel ladle maintenance according to claim 1, characterized in that: The top of the outer wall of the material tank (5) is welded with hanging rings distributed at equal distances, and the bottom outer wall of the iron chain (4) is fixedly connected with symmetrically distributed hooks, which are hung on the inner walls of the hanging rings.

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