Blast furnace tuyere pipeline blockage cleaning device

Abstract

The utility model discloses a blast furnace tuyere pipeline blockage cleaning device, which relates to the technical field of blast furnace tuyere cooling and comprises a blast furnace body, a tuyere arranged at the bottom of one side of the blast furnace body and a support table, the blast furnace body is fixed at the top end of the support table, and an annular water tank is fixedly sleeved on the outer wall of the tuyere. A drainage tank is installed on the side of the bottom end of the blast furnace body through triangular supporting ribs, a first pipeline and a second pipeline are installed on the annular water tank, a first three-way valve is installed at one end of the first pipeline, and the two ends of the first three-way valve are connected with a third pipeline and a fourth pipeline correspondingly. One end of the fourth pipeline is provided with a second three-way valve and one end of the second pipeline is connected with a third three-way valve. In the utility model, under the condition that the annular water tank of the tuyere is not disassembled, impurities blocked in the inner cavity of the annular water tank on the tuyere are cleaned on line, so that the smoothness of water flow in the annular water tank is ensured, the heat at the tuyere can be taken away in time, and the cooling effect on the tuyere is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of blast furnace tuyere cooling, in particular to a cleaning device for blocking and cleaning a blast furnace tuyere pipeline. Background Technique

[0002] During the production process of a blast furnace, the blast furnace tuyere is mainly used for blowing air into the blast furnace to enhance the smelting effect. Under high-temperature conditions, the tuyere needs to be cooled. Generally, the inner cavity of the tuyere is cooled by passing water, and the external is connected with an inlet and outlet pipeline and a three-way valve. Due to impurities in the water supply, there is a risk of aggregation and blockage, which affects the cooling effect of the tuyere. Therefore, a cleaning device for blocking and cleaning a blast furnace tuyere pipeline is provided. Content of the Utility Model

[0003] Aiming at the deficiencies of the prior art, the utility model provides a cleaning device for blocking and cleaning a blast furnace tuyere pipeline. Without disassembling the tuyere annular water tank, the sundries blocked in the inner cavity of the annular water tank on the tuyere are cleaned online, ensuring the smooth flow of water in the annular water tank, timely taking away the heat at the tuyere, ensuring the cooling effect on the tuyere, and overcoming the deficiencies of the prior art.

[0004] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0005] A cleaning device for blocking and cleaning a blast furnace tuyere pipeline includes a blast furnace body, a tuyere and a support platform arranged at the bottom on one side of the blast furnace body. The blast furnace body is fixed at the top of the support platform. An annular water tank is fixedly sleeved on the outer wall of the tuyere. A drainage tank is installed at the bottom side of the blast furnace body through a triangular support rib. A first pipeline and a second pipeline are installed on the annular water tank. One end of the first pipeline is provided with a first three-way valve. Both ends of the first three-way valve are respectively connected with a third pipeline and a fourth pipeline. One end of the third pipeline is connected with the drainage tank. One end of the fourth pipeline is provided with a second three-way valve. One end of the second pipeline is connected with a third three-way valve. A fifth pipeline is connected between the third three-way valve and the second three-way valve. A sixth pipeline is installed between the other end of the third three-way valve and the drainage tank. A drainage valve is installed on one side of the drainage tank. A sealing component is arranged at the bottom of the drainage tank. A filtering component is installed on the sealing component.

[0006] Through the above scheme, without disassembling the tuyere annular water tank, the sundries blocked in the inner cavity of the annular water tank on the tuyere are cleaned online, ensuring the smooth flow of water in the annular water tank, timely taking away the heat at the tuyere, and ensuring the cooling effect on the tuyere.

[0007] Preferably, the other end of the second three-way valve is connected with a water inlet pipeline, and one end of the water inlet pipeline is externally connected with a water supply pipeline.

[0008] Preferably, the third pipe and the sixth pipe are respectively located on both sides of the top of the drainage tank, and the first pipe and the second pipe are respectively located at the top and bottom of the annular water tank.

[0009] Preferably, the sealing assembly includes two electric push rods fixed on the outer walls of opposite sides of the drainage tank, and a sealing bottom plate is connected to the bottom ends of the two electric push rods.

[0010] Preferably, a sealing ring is adhesively bonded to the side of the upper end face of the sealing bottom plate, and the sealing ring forms a sealing fit with the lower end of the drainage tank.

[0011] Preferably, the filtering assembly includes a rectangular frame fixed in the middle of the upper end face of the sealing bottom plate, and a filter net is fixed inside the rectangular frame.

[0012] Preferably, both ends of the rectangular frame are in sliding contact with the inner wall of the drainage tank, and the height of the rectangular frame is less than the height of the drainage tank.

[0013] The beneficial effects of the present utility model are as follows:

[0014] Without disassembling the tuyere annular water tank, the sundries blocking the inner cavity of the annular water tank on the tuyere are cleaned online, ensuring the smooth flow of water in the annular water tank, timely taking away the heat at the tuyere, and ensuring the cooling effect on the tuyere. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 FIG. 1 is a schematic perspective view of a first perspective of a device for cleaning blockage in a blast furnace tuyere pipeline proposed by the present utility model.

[0016] Figure 2 FIG. 2 is a schematic perspective view of a second perspective of a device for cleaning blockage in a blast furnace tuyere pipeline proposed by the present utility model.

[0017] Figure 3 FIG. 3 is a schematic perspective view of a third perspective of a device for cleaning blockage in a blast furnace tuyere pipeline proposed by the present utility model.

[0018] Figure 4 FIG. 4 is a schematic enlarged view of part A in a device for cleaning blockage in a blast furnace tuyere pipeline proposed by the present utility model. Figure 3 FIG. 5 is a schematic enlarged view of part B in a device for cleaning blockage in a blast furnace tuyere pipeline proposed by the present utility model.

[0019] In the figure: 1, blast furnace body; 2, support platform; 3, electric push rod; 4, sealing bottom plate; 5, drainage tank; 6, tuyere; 7, third three-way valve; 8, first pipe; 9, first three-way valve; 10, second three-way valve; 11, water inlet pipe; 12, annular water tank; 13, third pipe; 14, second pipe; 15, fourth pipe; 16, sixth pipe; 17, fifth pipe; 18, rectangular frame; 19, filter net. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0021] Example 1, referring to Figures 1-4

[0021] , a cleaning device for blocking and clearing a blast furnace tuyere pipeline, comprising a blast furnace body 1, a tuyere 6 arranged at the bottom on one side of the blast furnace body 1, and a support platform 2. The blast furnace body 1 is fixed at the top end of the support platform 2. An annular water tank 12 is fixedly sleeved on the outer wall of the tuyere 6. A drain tank 5 is installed at the bottom side of the blast furnace body 1 through a triangular support rib. A first pipeline 8 and a second pipeline 14 are installed on the annular water tank 12. One end of the first pipeline 8 is installed with a first three-way valve 9. Both ends of the first three-way valve 9 are respectively connected with a third pipeline 13 and a fourth pipeline 15. One end of the third pipeline 13 is connected with the drain tank 5. One end of the fourth pipeline 15 is installed with a second three-way valve 10. One end of the second pipeline 14 is connected with a third three-way valve 7. A fifth pipeline 17 is connected between the third three-way valve 7 and the second three-way valve 10. A sixth pipeline 16 is installed between the other end of the third three-way valve 7 and the drain tank 5. A drain valve is installed on one side of the drain tank 5;

[0022] The other end of the second three-way valve 10 is connected with a water inlet pipeline 11, and one end of the water inlet pipeline 11 is externally connected to a water supply pipeline;

[0023] The third pipeline 13 and the sixth pipeline 16 are respectively located on both sides of the top end of the drain tank 5. The first pipeline 8 and the second pipeline 14 are respectively located at the top end and the bottom end of the annular water tank 12;

[0024] A sealing component is arranged at the bottom of the drain tank 5. The sealing component includes two electric push rods 3 fixed on the outer walls of the opposite sides of the drain tank 5. The bottom ends of the two electric push rods 3 are connected with a sealing bottom plate 4. A sealing ring is adhesively bonded to the side of the upper end surface of the sealing bottom plate 4, and the sealing ring forms a sealing fit with the lower end of the drain tank 5.

[0025] A filtering component is installed on the sealing component. The filtering component includes a rectangular frame 18 fixed in the middle of the upper end surface of the sealing bottom plate 4. A filter screen 19 is fixed inside the rectangular frame 18. Both ends of the rectangular frame 18 are in sliding contact with the inner wall of the drain tank 5, and the height of the rectangular frame 18 is less than the height of the drain tank 5.

[0026] Working principle: During normal operation, the first three-way valve 9, the second three-way valve 10, and the third three-way valve 7 are all opened at 180°. By keeping the valve of the water supply pipe always open, cold water can enter the annular water tank 12 to cool the tuyere 6 of the blast furnace body 1. When a blockage occurs, the drainage head decreases. At the same time, the first three-way valve 9, the second three-way valve 10, and the third three-way valve 7 are all opened at 90° to form a reverse top water flow, enabling the water to pass through the second three-way valve 10, the fifth pipe 17, the third three-way valve 7, the second pipe 14, the annular water tank 12, the first pipe 8, the first three-way valve 9, and the third pipe 13 in sequence, thereby flushing the impurities into the drainage tank 5. The used wastewater is discharged from the drain valve. Part of the impurities can be intercepted by the filter net 19. By regularly controlling the two electric push rods 3 to push the sealing bottom plate 4 downward, the impurities accumulated on the sealing bottom plate 4 can be cleaned up centrally. The operation is relatively convenient and the practicability is good.

[0027] The above is only the preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and the inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A blast furnace tuyere pipe blockage cleaning device, comprising a blast furnace body (1), a tuyere (6) arranged at the bottom of one side of the blast furnace body (1), and a support platform (2), wherein the blast furnace body (1) is fixed on the top of the support platform (2), characterized in that: An annular water tank (12) is fixedly provided on the outer wall of the tuyere (6); a drainage box (5) is installed on the bottom side of the blast furnace body (1) via triangular support ribs; a first pipe (8) and a second pipe (14) are installed on the annular water tank (12); a first three-way valve (9) is installed at one end of the first pipe (8); two ends of the first three-way valve (9) are respectively connected to a third pipe (13) and a fourth pipe (15); one end of the third pipe (13) is connected to the drainage box (5); one end of the fourth pipe (15) is installed with a second three-way valve (10); one end of the second pipe (14) is connected to a third three-way valve (7); a fifth pipe (17) is connected between the third three-way valve (7) and the second three-way valve (10); a sixth pipe (16) is installed between the other end of the third three-way valve (7) and the drainage box (5); a drainage valve is installed on one side of the drainage box (5); a sealing assembly is provided at the bottom of the drainage box (5); a filter assembly is installed on the sealing assembly.

2. A blast furnace tuyere pipe blockage cleaning device according to claim 1, characterized in that: The other end of the second three-way valve (10) is connected to a water inlet pipe (11), and one end of the water inlet pipe (11) is externally connected to a water supply pipe.

3. The blast furnace tuyere pipe blockage cleaning device according to claim 1, characterized in that: The third pipe (13) and the sixth pipe (16) are respectively located at both sides of the top end of the drainage box (5), and the first pipe (8) and the second pipe (14) are respectively located at the top end and the bottom end of the annular water box (12).

4. The blast furnace tuyere pipe blockage cleaning device according to claim 1, characterized in that: The sealing assembly comprises two electric push rods (3) fixed to the outer walls of the drainage box (5) on two opposite sides, and the bottom ends of the two electric push rods (3) are connected to a sealing bottom plate (4).

5. A blast furnace tuyere pipe blockage cleaning device according to claim 4, characterized in that: A sealing ring is bonded to the side of the upper end surface of the sealing bottom plate (4), and the sealing ring forms a sealing fit with the lower end of the drainage box (5).

6. A blast furnace tuyere pipe blockage cleaning device according to claim 4, characterized in that: The filter assembly comprises a rectangular frame (18) fixed to the middle of the upper end surface of the sealing bottom plate (4), and a filter screen (19) is fixed inside the rectangular frame (18).

7. A blast furnace tuyere pipe blockage cleaning device according to claim 6, characterized in that: Both ends of the rectangular frame (18) are in sliding contact with the inner wall of the drainage box (5), and the height of the rectangular frame (18) is less than the height of the drainage box (5).

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