A blast furnace molten iron slag stopping device

Abstract

The utility model belongs to sintered ore technical field discloses a blast furnace molten iron slag stopping equipment, first slag stopping frame sets up above main ditch, vibration slag discharge structure, vibration slag discharge structure sets up first slag stopping frame one side, first slag stopping frame's one side is provided with the second slag stopping frame that can stop iron slag, the top surface of second slag stopping frame is provided with detachable flow rod, the middle part of first slag stopping frame is fixed with two fixed blocks, the centre rod that drives second slag stopping frame left and right swing is provided between two fixed blocks, iron slag reaches second slag stopping frame through first slag stopping frame, small piece iron slag can continue to flow through the gap, big iron slag is intercepted and melts, the end of L frame rotation and contact transmission rod, transmission rod drives second slag stopping frame to swing in the removal groove left and right, the iron slag that stops slag stopping frame vibration and adheres in the one side of stopping slag stopping frame, the iron slag that has been melted smaller is vibrated and passes through the stopping slag stopping frame from the gap, the iron slag that is bigger and is melting is vibrated and melts the speed to accelerate.

Description

Technical Field

[0001] This utility model belongs to the field of sintering technology, specifically, it relates to a blast furnace molten iron slag blocking device. Background Technology

[0002] The slag-blocking equipment for blast furnace smelting is a device specifically designed for blast furnace smelting scenarios. It is used to intercept slag during the outflow of molten iron, preventing slag from entering the molten iron ladle or subsequent steelmaking processes, thereby improving the purity of molten iron, reducing equipment wear and tear, and ensuring production safety.

[0003] Existing technology discloses a slag-blocking device for blast furnace front (CN202420148714.6), comprising: a slag-blocking plate, the slag-blocking plate having gaps or holes, the slag-blocking plate being disposed in a main trench to block large pieces of slag; and a connecting part, the connecting part being disposed on the top of the slag-blocking plate, the connecting part having connecting holes. The slag-blocking plate includes a middle rib and side ribs, the side ribs being disposed on the outermost side of the slag-blocking plate, the middle rib being disposed in the middle of the side ribs, and a gap being formed between the side ribs and the middle ribs.

[0004] Existing technology uses slag baffles to block large pieces of slag, increasing the contact and melting time between the slag and molten iron. When the slag is blocked by the slag baffle, it melts and adheres to the baffle, making it easy for the slag to stick to the baffle. Even if it is melted into small pieces by the molten iron, it is still difficult for it to flow through the gaps.

[0005] In view of this, this utility model is hereby proposed. Utility Model Content

[0006] To solve the aforementioned technical problem of slag adhering to the slag baffle plate and being difficult to flow, the basic concept of the technical solution adopted by this utility model is: a blast furnace molten iron slag baffle device, including a first slag baffle frame set above the main channel;

[0007] The vibrating slag discharge structure is located on one side of the first slag baffle. A second slag baffle is located on one side of the first slag baffle to block iron slag. A detachable flow bar is located on the top surface of the second slag baffle. Two fixed blocks are fixed in the middle of the first slag baffle. A central rod is located between the two fixed blocks to drive the second slag baffle to swing left and right. Each side of the central rod is rotatably connected to a fixed block.

[0008] In a preferred embodiment of the present invention, the vibrating slag discharge structure further includes a top frame, an L-frame, and clamping blocks. The bottom surface of the top frame is fixedly connected to the top surfaces of the first and second slag-blocking frames. One end of the L-frame is rotatably connected to one side of the central rod. Two clamping blocks are fixedly mounted on the bottom surface of the top frame. The other end of the L-frame is rotatably connected to the opposite side of the two clamping blocks. One end of the L-frame is semi-circular.

[0009] In a preferred embodiment of this utility model, the vibrating slag discharge structure further includes springs and a moving groove. A moving groove is opened on the bottom surface of the top frame. The top two sides of the second slag baffle are fixedly connected to one end of a spring. Each of the two springs is provided with a guide rod. One end of the two guide rods is fixedly connected to the top two sides of the second slag baffle. The telescopic ends of the two guide rods are fixedly connected to the two sides of the moving groove.

[0010] In a preferred embodiment of the present invention, the slag discharge structure further includes a suction groove. Two suction grooves are provided on the top surface of the second slag baffle, and a flow rod is provided in each of the two suction grooves. The two flow rods are slidably connected to the suction groove.

[0011] In a preferred embodiment of the present invention, a plurality of stabilizing blocks are fixedly provided on the bottom surface of the second slag-blocking frame, the two ends of the bottom surface of the stabilizing blocks are triangular, and a transmission rod is fixedly provided in the middle of one side of the second slag-blocking frame, one end of the transmission rod is circular.

[0012] In a preferred embodiment of this utility model, a top block is fixedly provided on the top surface of the top frame, a connecting plate is fixedly provided on one side of the first slag-blocking frame, and a tension spring is provided on one side of the connecting plate. One end of the tension spring is fixedly connected to the connecting plate, and the other end of the tension spring is fixedly connected to one side of the central rod.

[0013] In a preferred embodiment of the present invention, the overall shape of the second slag-blocking frame is M-shaped, and the overall shape of the central rod and the first slag-blocking frame is M-shaped.

[0014] Compared with the prior art, the present invention has the following advantages:

[0015] 1. The slag passes through the first slag baffle and reaches the second slag baffle. Small pieces of slag can continue to flow through the gaps, while large pieces of slag are intercepted and melted. The end of the L-shaped frame rotates and contacts the transmission rod. The transmission rod drives the second slag baffle to sway left and right in the moving trough. The slag baffle vibrates the slag attached to one side of the slag baffle. Smaller pieces of slag that have already been melted are vibrated and pass through the gaps through the slag baffle. Larger pieces of slag that are melting are vibrated and melted faster.

[0016] 2. Depending on the flow rate of the molten iron, either extract the molten iron or install a flow meter to select whether to melt large or small iron slag. Large iron slag will vibrate to accelerate melting and prevent blockage.

[0017] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0018] In the attached diagram:

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the vibration slag discharge structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the movable groove of this utility model;

[0022] Figure 4 This is a partial schematic diagram of the vibration slag discharge structure of this utility model;

[0023] Figure 5 This is a schematic diagram of the first slag-blocking frame of this utility model;

[0024] Figure 6 This is a schematic diagram of the stabilizing block of this utility model.

[0025] In the diagram: 1. First slag baffle; 2. Center rod; 3. Connecting plate; 4. Top frame; 5. Fixing block; 6. L-frame; 7. Transmission rod; 8. Flow rod; 9. Second slag baffle; 10. Stabilizing block; 11. Clamping block; 12. Spring; 13. Moving groove; 14. Tension spring; 15. Top block. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model.

[0027] A blast furnace slag-blocking device, such as Figure 1 , Figure 4 and Figure 5 As shown, the first slag-blocking frame 1 is installed above the main ditch. A vibrating slag discharge structure is located on one side of the first slag-blocking frame 1. A second slag-blocking frame 9, capable of blocking iron slag, is installed on one side of the first slag-blocking frame 1. A detachable flow bar 8 is installed on the top surface of the second slag-blocking frame 9. Two fixing blocks 5 are fixed in the middle of the first slag-blocking frame 1. A central rod 2, which drives the second slag-blocking frame 9 to sway left and right, is located between the two fixing blocks 5. Each side of the central rod 2 is rotatably connected to a fixing block 5. The slag discharge structure also includes a top frame 4, an L-frame 6, and a clamping block 11. The top frame 4... The bottom surface is fixedly connected to the top surface of the first slag-blocking frame 1 and the second slag-blocking frame 9. One end of the L-frame 6 is rotatably connected to one side of the central rod 2. Two clamping blocks 11 are fixedly installed on the bottom surface of the top frame 4. The other end of the L-frame 6 is rotatably connected to the opposite side of the two clamping blocks 11. One end of the L-frame 6 is semi-circular. A top block 15 is fixedly installed on the top surface of the top frame 4. A connecting plate 3 is fixedly installed on one side of the first slag-blocking frame 1. A tension spring 14 is installed on one side of the connecting plate 3. One end of the tension spring 14 is fixedly connected to the connecting plate 3, and the other end of the tension spring 14 is fixedly connected to one side of the central rod 2.

[0028] Iron slag flows with the molten iron. Small pieces of iron slag pass through the gap between the first slag baffle 1 and the central rod 2. When large pieces of iron slag pass through the gap, they press against the central rod 2 along with the molten iron. The central rod 2 is made of a lighter metal with a melting point greater than that of iron. The central rod 2 is rotated, pulling the tension spring 14. The L-frame 6 is also rotated, and the large pieces of iron slag pass through the first slag baffle 1. The top block 15 has a threaded hole, which is used for suspension or fixation. When the large pieces of iron slag pass through the first slag baffle 1, the tension spring 14 drives the central rod 2 to quickly return to its original position.

[0029] A blast furnace slag-blocking device, such as Figure 1 , Figure 2 , Figure 3 and Figure 6 As shown, the vibrating slag discharge structure also includes springs 12 and moving grooves 13. A moving groove 13 is opened on the bottom surface of the top frame 4. The top two sides of the second slag baffle 9 are fixedly connected to one end of a spring 12. Each of the two springs 12 is provided with a guide rod. One end of the two guide rods is fixedly connected to the top two sides of the second slag baffle 9. The telescopic ends of the two guide rods are fixedly connected to the two sides of the moving groove 13. The slag discharge structure also includes a suction groove. Two suction grooves are opened on the top surface of the second slag baffle 9. A flow rod 8 is provided in each of the two suction grooves. The two flow rods 8 are slidably connected to the suction grooves. Several stabilizing blocks 10 are fixed on the bottom surface of the second slag baffle 9. The two ends of the bottom surface of the stabilizing blocks 10 are triangular. A transmission rod 7 is fixed in the middle of one side of the second slag baffle 9. One end of the transmission rod 7 is round. The overall shape of the second slag baffle 9 is M-shaped. The overall shape of the central rod 2 and the first slag baffle 1 is M-shaped.

[0030] Iron slag passes through the first slag baffle 1 and reaches the second slag baffle 9. Small pieces of iron slag can continue to flow through the gaps, while large pieces of iron slag are intercepted and melted. The end of the L-shaped frame 6 rotates and contacts the transmission rod 7. The transmission rod 7 drives the second slag baffle 9 to sway left and right in the moving groove 13. The slag baffle 9 vibrates the iron slag attached to one side of the slag baffle 9. Smaller pieces of iron slag that have already been melted are vibrated and pass through the gaps in the slag baffle 9. Larger pieces of iron slag that are melting are vibrated and melted faster. Depending on the flow rate of the molten iron, either large or small pieces of iron slag are extracted or a flow meter 8 is installed to select whether to melt them. Large pieces of iron slag can be vibrated and melted faster to prevent blockage.

[0031] The working principle of this utility model is as follows: Iron slag flows with the molten iron. Small pieces of iron slag pass through the gap between the first slag baffle 1 and the central rod 2. When large pieces of iron slag pass through the gap, they press against the central rod 2 along with the molten iron. The central rod 2 is made of a lighter metal with a melting point greater than iron. The central rod 2 is rotated, pulling the tension spring 14, which in turn rotates the L-frame 6. Large pieces of iron slag pass through the first slag baffle 1. The top block 15 has a threaded hole, which is used for suspension or fixation. When large pieces of iron slag pass through the first slag baffle 1, the tension spring 14 drives the central rod 2 back to its original position. At position, the slag passes through the first slag baffle 1 and reaches the second slag baffle 9. Small pieces of slag can flow through the gaps as needed, while large pieces of slag are intercepted and melted. The end of the L-shaped frame 6 rotates and abuts against the transmission rod 7. The transmission rod 7 drives the second slag baffle 9 to sway left and right in the moving groove 13. The slag baffle 9 vibrates the slag attached to one side of the slag baffle 9. Smaller pieces of slag that have already been melted are vibrated and pass through the gaps through the slag baffle 9. Larger pieces of slag that are melting are vibrated and the melting speed is accelerated. Depending on the flow rate of the molten iron, either large or small pieces of slag are extracted or a flow meter 8 is installed to select whether to melt them.

[0032] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A blast furnace molten iron slag-blocking device, characterized in that, include The first slag retainer (1) is set above the main ditch; The vibrating slag discharge structure is set on one side of the first slag baffle (1). A second slag baffle (9) that can block iron slag is set on one side of the first slag baffle (1). A detachable flow bar (8) is set on the top surface of the second slag baffle (9). Two fixed blocks (5) are fixed in the middle of the first slag baffle (1). A central rod (2) that drives the second slag baffle (9) to swing left and right is set between the two fixed blocks (5). The two sides of the central rod (2) are rotatably connected to a fixed block (5).

2. The blast furnace molten iron slag-blocking device according to claim 1, characterized in that, The vibrating slag discharge structure also includes a top frame (4), an L-frame (6) and clamping blocks (11). The bottom surface of the top frame (4) is fixedly connected to the top surfaces of the first slag baffle (1) and the second slag baffle (9). One end of the L-frame (6) is rotatably connected to one side of the central rod (2). Two clamping blocks (11) are fixedly installed on the bottom surface of the top frame (4). The other end of the L-frame (6) is rotatably connected to the opposite side of the two clamping blocks (11). One end of the L-frame (6) is semi-circular.

3. The blast furnace molten iron slag-blocking device according to claim 2, characterized in that, The vibrating slag discharge structure also includes springs (12) and moving grooves (13). A moving groove (13) is opened on the bottom surface of the top frame (4). The top two sides of the second slag baffle (9) are fixedly connected to one end of a spring (12). Each of the two springs (12) is provided with a guide rod. One end of the two guide rods is fixedly connected to the top two sides of the second slag baffle (9). The telescopic ends of the two guide rods are fixedly connected to the two sides of the moving groove (13).

4. The blast furnace molten iron slag-blocking device according to claim 1, characterized in that, The slag discharge structure also includes a suction groove. Two suction grooves are opened on the top surface of the second slag baffle (9). A flow rod (8) is set in each of the two suction grooves. The two flow rods (8) are slidably connected to the suction groove.

5. A blast furnace molten iron slag-blocking device according to claim 4, characterized in that, The bottom surface of the second slag-blocking frame (9) is fixed with several stabilizing blocks (10). The bottom surfaces of the stabilizing blocks (10) are triangular at both ends. A transmission rod (7) is fixed in the middle of one side of the second slag-blocking frame (9). One end of the transmission rod (7) is circular.

6. A blast furnace molten iron slag-blocking device according to claim 2, characterized in that, The top surface of the top frame (4) is fixed with a top block (15), and a connecting plate (3) is fixed on one side of the first slag baffle (1). A tension spring (14) is provided on one side of the connecting plate (3). One end of the tension spring (14) is fixedly connected to the connecting plate (3), and the other end of the tension spring (14) is fixedly connected to one side of the center rod (2).

7. A blast furnace molten iron slag-blocking device according to claim 1, characterized in that, The second slag baffle (9) has an overall shape of M, and the central rod (2) and the first slag baffle (1) together form an overall shape of M.

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