Blast furnace tapping channel structure

Abstract

The utility model discloses a blast furnace tapping channel structure which comprises a blast furnace tapping channel main body, a cooling box and a check ring are arranged outside the blast furnace tapping channel main body, a bearing is fixedly connected between the cooling box and the check ring, and cooling spray heads are arranged on the cooling box and the check ring. A cooling tank is arranged between the check ring and the blast furnace tapping channel body, a first water outlet is formed in the bottom of the check ring, a second water outlet is formed in the bottom of the cooling tank, a moving rod is fixedly connected to the upper surface of the check ring, a moving groove is formed in the cooling tank, and a sliding rod is arranged on the moving rod. And the sliding rod is movably connected with a fixed rod. By means of the device, through cooperation of the cooling box, the check ring, the cooling groove, the cooling spray head, the first water outlet and the second water outlet, the uniform cooling effect is beneficial for reducing the temperature of molten iron, the tapping quality is improved, and cooling water can be recycled through flexible adjustment of the check ring.

Description

Technical Field

[0001] The utility model relates to the technical field of blast furnace iron outlet channels, in particular to a blast furnace iron outlet channel structure. Background Art

[0002] Existing blast furnace iron-outlet ditch technology mostly uses direct water spraying for cooling. However, this method consumes a lot of water resources and is easy to damage the equipment when in use. For example, a Chinese patent discloses "a new type of corrosion-resistant blast furnace iron-outlet ditch", and its application number is "CN202222730667". It uses a refrigerant inlet pipe to pass cooling liquid and the heat dissipation shell of the ditch body to efficiently exchange heat, thereby cooling the inner ditch body for use, and the hot water generated by the heat exchange can be retrieved and used through the heat medium recovery pipe, thereby realizing heat source recovery and energy-saving utilization in the iron-outlet ditch processing. However, its cost is high, the later maintenance is difficult, and the use value is low. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art, and provides a blast furnace iron outlet groove structure. Through the cooperation of a cooling box, a retaining ring and a moving rod, the moving rod is moved to drive the rotation of the retaining ring, and the cooling nozzles on the cooling box and the retaining ring are adjusted so that the cooling nozzles are aligned with each other to achieve a cooling effect. Through the cooperation of a moving groove, a first water outlet and a second water outlet, when the cooling nozzles are aligned, the first water outlet and the second water outlet cannot be aligned. The retaining ring is moved to move the moving rod to the other side of the moving groove, and the first water outlet and the second water outlet are aligned, so that the heated cooling water is effectively discharged. The flexibility of adjustment saves cooling time, improves the cooling quality, and thus improves the quality of molten iron. The utility model has a high practical value.

[0004] The utility model also provides a blast furnace iron outlet groove structure as mentioned above, including: a blast furnace iron outlet groove main body, two grooves are arranged on the blast furnace iron outlet groove main body, the grooves are located on both sides of the blast furnace iron outlet groove main body, a cooling box and a retaining ring are arranged on the outside of the blast furnace iron outlet groove main body, a bearing is fixedly connected between the cooling box and the retaining ring, cooling nozzles are arranged on the cooling box and the retaining ring, and a cooling groove is arranged between the retaining ring and the blast furnace iron outlet groove main body; a first water outlet is arranged at the bottom of the retaining ring, a second water outlet is arranged at the bottom of the cooling box, the first water outlet and the second water outlet are the same in size, a moving rod is fixedly connected to the upper surface of the retaining ring, a moving groove is arranged on the cooling box, the moving rod passes through the moving groove and is located on the outside of the cooling box, a sliding rod is arranged on the moving rod, and a fixed rod is movably connected to the sliding rod. Through the above device, through the cooperation of the cooling box, the retaining ring, the cooling trough, the cooling nozzle, the first water outlet and the second water outlet, the uniform cooling effect helps to reduce the molten iron temperature and improve the iron quality. The flexible adjustment of the retaining ring allows the cooling water to be recycled and reused.

[0005] According to the blast furnace iron outlet groove structure described in the utility model, the blast furnace iron outlet groove main body is an inverted trapezoidal shape, and the blast furnace iron outlet groove main body is installed in an inclined manner. Through the above device, the shape of the blast furnace iron outlet groove main body is conducive to the smooth flow of molten iron and reduces resistance and fluctuation.

[0006] According to the blast furnace iron outlet groove structure described in the utility model, the cooling box is located outside the retaining ring, the cooling box is fitted with the retaining ring, a sealing gasket is arranged between the cooling box and the retaining ring, and a water inlet is arranged on the cooling box. Through the above device, the cooling water is prevented from leaking through the sealing gasket.

[0007] According to the blast furnace iron outlet groove structure described in the utility model, the cooling box and the retaining ring are both provided with mounting grooves, and the bearing is located inside the mounting grooves. Through the above device, the bearing can be conveniently fixed through the mounting grooves.

[0008] According to the blast furnace iron outlet channel structure described in the utility model, the cooling nozzles surround the cooling box and the retaining ring, and the number of cooling nozzles in one circle is nine. Through the above device, through the position of the cooling nozzles, the surroundings of the blast furnace iron outlet channel body are effectively cooled to improve the cooling efficiency.

[0009] According to the blast furnace iron outlet structure described in the utility model, the first water outlet is located on the left side of the bottom retaining ring, and the curvature of the central axis between the first water outlet and the second water outlet is the same as the curvature of the movable groove. Through the above device, the positions of the first water outlet and the second water outlet are conveniently adjusted according to the curvature of the movable groove.

[0010] According to the blast furnace iron outlet groove structure described in the utility model, the moving rod is provided with a fixing groove, and the sliding rod is located inside the fixing groove. Through the above device, the moving rod is effectively fixed through the fixing groove to prevent sliding.

[0011] According to the blast furnace iron outlet groove structure described in the utility model, the upper surface of the cooling box is fixedly connected with a locking rod, and the locking rod is provided with a locking groove, and the locking groove is interference-fitted with the other end of the fixing rod. Through the above device, the moving rod is conveniently fixed through the locking groove and the locking rod.

[0012] Beneficial Effects

[0013] Compared with the prior art, the iron outlet groove structure for a blast furnace can achieve a cooling effect by cooperating with a cooling box, a retaining ring and a moving rod. The moving rod is moved to drive the rotation of the retaining ring, and the cooling nozzles on the cooling box and the retaining ring are adjusted to align the cooling nozzles with each other. By cooperating with the moving groove, the first water outlet and the second water outlet, when the cooling nozzles are aligned, the first water outlet and the second water outlet cannot be aligned. The retaining ring is moved to move the moving rod to the other side of the moving groove, and the first water outlet and the second water outlet are aligned, so that the heated cooling water is effectively discharged. The flexibility of adjustment saves cooling time, improves the cooling quality, and thus improves the quality of molten iron. The invention has a high practical value. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0015] Figure 1 This is a front view of the iron tapping ditch structure of a blast furnace of the utility model;

[0016] Figure 2 It is a top view of the iron tapping ditch structure of a blast furnace of the utility model;

[0017] Figure 3 The utility model is a blast furnace iron outlet groove structure Figure 1 Middle vertical section view;

[0018] Figure 4 The utility model is a blast furnace iron outlet groove structure Figure 1 Partial cross-sectional view;

[0019] Figure 5 The utility model is a blast furnace iron outlet groove structure Figure 2 Enlarged view of point A in the middle.

[0020] Legend:

[0021] 1. Blast furnace iron outlet channel body; 2. Cooling box; 3. Water inlet; 4. Groove; 5. Cooling nozzle; 6. Mounting groove; 7. Bearing; 8. Retaining ring; 9. First water outlet; 10. Second water outlet; 11. Moving groove; 12. Moving rod; 13. Sliding rod; 14. Fixed rod; 15. Locking rod; 16. Locking groove; 17. Fixed groove; 18. Cooling groove. DETAILED DESCRIPTION

[0022] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0023] Reference Figure 1-5The utility model embodiment of a blast furnace iron outlet groove structure, comprising: a blast furnace iron outlet groove main body 1, the blast furnace iron outlet groove main body 1 is an inverted trapezoidal shape, the shape of the blast furnace iron outlet groove main body 1 is adapted to the amount of molten iron produced by the blast furnace, the blast furnace iron outlet groove main body 1 is inclinedly installed, and two grooves 4 are arranged on the blast furnace iron outlet groove main body 1, the grooves 4 are used to increase the surface area in contact with the cooling device, the grooves 4 are located on both sides of the blast furnace iron outlet groove main body 1, and a cooling box 2 and a retaining ring 8 are arranged outside the blast furnace iron outlet groove main body 1, the cooling box 2 is cooled, the retaining ring 8 controls the flow of cooling water, the cooling box 2 is located outside the retaining ring 8, the cooling box 2 is fitted with the retaining ring 8, and the cooling box 2 and the retaining ring 8 are connected. A sealing gasket is arranged between the cooling box 2 to prevent cooling water leakage. A water inlet 3 is arranged on the cooling box 2 to facilitate adding cooling water to the cooling box 2. A bearing 7 is fixedly connected between the cooling box 2 and the retaining ring 8 to facilitate controlling the rotation of the retaining ring 8. A mounting groove 6 is arranged on the cooling box 2 and the retaining ring 8 to install the bearing 7, and the bearing 7 is located inside the mounting groove 6. A cooling nozzle 5 is arranged on the cooling box 2 and the retaining ring 8 to cool the blast furnace iron outlet groove main body 1. The cooling nozzle 5 surrounds the cooling box 2 and the retaining ring 8. There are nine cooling nozzles 5 in one circle. A cooling groove 18 is arranged between the retaining ring 8 and the blast furnace iron outlet groove main body 1.

[0024] A first water outlet 9 is provided at the bottom of the retaining ring 8, and the first water outlet 9 discharges cooling water. A second water outlet 10 is provided at the bottom of the cooling box 2, and the second water outlet 10 discharges cooling water. The first water outlet 9 is the same size as the second water outlet 10. The first water outlet 9 is located on the left side of the bottom retaining ring 8. The arc of the central axis between the first water outlet 9 and the second water outlet 10 is the same as the arc of the moving groove 11. A moving rod 12 is fixedly connected to the upper surface of the retaining ring 8. The moving rod 12 rotates the retaining ring 8, and a fixed groove 11 is provided on the moving rod 12. 7. The sliding rod 13 is located inside the fixed groove 17. The cooling box 2 is provided with a movable groove 11. The movable rod 12 passes through the movable groove 11 and is located outside the cooling box 2. The movable rod 12 is provided with a sliding rod 13. The sliding rod 13 is movably connected with a fixed rod 14. The fixed rod 14 fixes the movable rod 12. The upper surface of the cooling box 2 is fixedly connected with a locking rod 15. The locking rod 15 is provided with a locking groove 16. The locking groove 16 locks the fixed rod 14. The locking groove 16 is interference fit with the other end of the fixed rod 14.

[0025] Working principle: When in use, rotate the moving rod 12 to the other side of the moving groove 11, so that the cooling nozzles 5 on the cooling box 2 and the retaining ring 8 are aligned with each other, discharge cooling water, cool the surface of the blast furnace iron outlet channel main body 1, and thus cool the molten iron inside. The moving rod 12 is stuck in the locking groove 16 to prevent movement. After the cooling groove 18 is filled with cooling water, move the moving rod 12 again until the first water outlet 9 and the second water outlet 10 are aligned to discharge the used cooling water.

[0026] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A blast furnace iron tapping channel structure, characterized in that: include: A blast furnace iron tapping channel body (1), wherein two grooves (4) are arranged on the blast furnace iron tapping channel body (1), and the grooves (4) are located on both sides of the blast furnace iron tapping channel body (1); a cooling box (2) and a retaining ring (8) are arranged outside the blast furnace iron tapping channel body (1); a bearing (7) is fixedly connected between the cooling box (2) and the retaining ring (8); cooling nozzles (5) are arranged on the cooling box (2) and the retaining ring (8); and a cooling groove (18) is arranged between the retaining ring (8) and the blast furnace iron tapping channel body (1); A first water outlet (9) is provided at the bottom of the retaining ring (8), and a second water outlet (10) is provided at the bottom of the cooling box (2); the first water outlet (9) and the second water outlet (10) are of the same size; a moving rod (12) is fixedly connected to the upper surface of the retaining ring (8); a moving groove (11) is provided on the cooling box (2); the moving rod (12) passes through the moving groove (11) and is located outside the cooling box (2); a sliding rod (13) is provided on the moving rod (12); and a fixed rod (14) is movably connected to the sliding rod (13).

2. A blast furnace iron tapping channel structure according to claim 1, characterized in that: The blast furnace iron outlet channel main body (1) is in an inverted trapezoidal shape, and the blast furnace iron outlet channel main body (1) is installed in an inclined manner.

3. A blast furnace iron tapping channel structure according to claim 1, characterized in that: The cooling box (2) is located outside the retaining ring (8), the cooling box (2) and the retaining ring (8) are in close contact, a sealing gasket is provided between the cooling box (2) and the retaining ring (8), and a water inlet (3) is provided on the cooling box (2).

4. A blast furnace iron tapping channel structure according to claim 1, characterized in that: The cooling box (2) and the retaining ring (8) are both provided with a mounting groove (6), and the bearing (7) is located inside the mounting groove (6).

5. The blast furnace iron tapping channel structure according to claim 1, characterized in that: The cooling nozzles (5) surround the cooling box (2) and the retaining ring (8), and the number of the cooling nozzles (5) in one circle is nine.

6. A blast furnace iron tapping channel structure according to claim 1, characterized in that: The first water outlet (9) is located on the left side of the bottom retaining ring (8), and the curvature of the central axis between the first water outlet (9) and the second water outlet (10) is the same as the curvature of the moving groove (11).

7. A blast furnace iron tapping channel structure according to claim 1, characterized in that: The moving rod (12) is provided with a fixing groove (17), and the sliding rod (13) is located inside the fixing groove (17).

8. The blast furnace iron tapping channel structure according to claim 1, characterized in that: A locking rod (15) is fixedly connected to the upper surface of the cooling box (2), and a locking groove (16) is provided on the locking rod (15). The locking groove (16) is interference-fitted with the other end of the fixing rod (14).

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