Smelting furnace slag outlet protection device

Abstract

The utility model relates to the field of metal smelting, in particular to a smelting furnace slag outlet protection device which comprises a slag outlet body, a slag discharging groove is formed in one side of the slag outlet body, the two sides of the slag discharging groove are each provided with a driving box, and the interior of each driving box is rotationally connected with a first gear; a first protective cover is arranged above the slag discharging groove, and a second protective cover is slidably connected into the first protective cover. According to the utility model, the first protective cover, the second protective cover and other components are arranged, and the first protective cover and the second protective cover are matched with each other, so that the second gear can drive the first protective cover and other components to rotate through the driving plate; therefore, the effect of shielding the slag discharge groove and the slag outlet body by arranging the first protective cover, the second protective cover and other parts is achieved, and the defect that potential safety hazards are caused due to the fact that the existing technical scheme is lack of a protective mechanism and slag is prone to splashing is overcome.

Description

Technical Field

[0001] This utility model relates to the field of metal smelting technology, specifically to a slag outlet protection device for a smelting furnace. Background Technology

[0002] A smelting furnace is a furnace used to melt iron ore, such as hematite (Fe2O3) or magnetite (Fe3O4), to turn it into pig iron. This type of furnace is a tall, columnar structure lined with refractory materials, filled from the top with washed ore, coke, and a solvent (usually limestone). The transformation of iron oxide into metallic iron is a reduction process, using carbon monoxide and hydrogen as reducing agents.

[0003] When slag is discharged from a smelting furnace, the high-temperature slag will splash everywhere under the pressure inside the furnace, posing a certain safety hazard.

[0004] However, the existing technology lacks protective mechanisms, which makes it easy for slag to splash during slag discharge to injure workers and equipment in the workshop. In order to solve the shortcomings of the existing technology in lacking protective mechanisms, this application sets up components such as a first protective cover and a second protective cover to protect the slag outlet body and slag discharge trough during slag discharge, thereby achieving the effect of avoiding slag splashing. Therefore, a new solution is needed to solve this problem. Utility Model Content

[0005] In view of the shortcomings and defects of the existing protective mechanisms in the background technology mentioned above.

[0006] This utility model discloses a slag outlet protection device for a smelting furnace, including a slag outlet body. A slag discharge trough is provided on one side of the slag outlet body. A drive box is provided on both sides of the slag discharge trough. A first gear is rotatably connected inside each drive box, and a second gear is rotatably connected inside each drive box. A drive plate is fixedly connected to each second gear. A first protective cover is provided above the slag discharge trough. A second protective cover is slidably connected inside the first protective cover. A first hydraulic rod is fixedly installed on the first protective cover. Three sliding grooves are opened on the outer surface of the first protective cover.

[0007] Furthermore, a baffle is provided above the slag discharge trough, and a top block is fixedly connected to the outer surface of the baffle.

[0008] Furthermore, a support arm is fixedly connected to the outer surface of the top block, and a bottom beam is rotatably connected to the other end of the support arm.

[0009] Furthermore, two transmission rods are fixedly connected to the other end of the support arm, and each transmission rod is rotatably connected to the bottom beam.

[0010] Furthermore, the middle section of the support arm is rotatably connected to two connecting rods, which are symmetrically installed.

[0011] Furthermore, a second hydraulic rod is fixedly installed on the upper surface of the bottom beam, and a drive block is fixedly connected to the other end of the second hydraulic rod.

[0012] Furthermore, a bracket is fixedly connected to the upper surface of the bottom beam, and two sliding rods are fixedly connected inside the bracket.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model, by setting up components such as a first protective cover and a second protective cover, and through the cooperation between the first protective cover and the second protective cover, enables the second gear to drive the first protective cover and other components to rotate via the drive plate. This achieves the effect of shielding the slag discharge trough and slag outlet body by setting up components such as the first protective cover and the second protective cover, thus solving the shortcomings of current technical solutions that lack protective mechanisms and cause safety hazards due to easy slag splashing.

[0015] 2. This utility model, by setting up components such as support arms and support rods, and through the cooperation between the support arms and support rods, enables the support rods to drive the top block and baffle to rotate through the support arms, so that the baffles can block or open the slag outlet body by rotating, thereby achieving the effect of controlling the opening and closing of the slag outlet body by setting up support arms and support rods. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the drive box of this utility model;

[0019] Figure 3 This is a schematic diagram of the slag outlet body structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the second protective cover structure of this utility model.

[0021] In the diagram: 1. Slag outlet body; 2. Slag discharge trough; 3. Drive box; 4. First gear; 5. Second gear; 6. Drive plate; 7. First protective cover; 8. Second protective cover; 9. Slide chute; 10. Baffle; 11. Top block; 12. Support arm; 13. Bottom beam; 14. Transmission rod; 15. Connecting rod; 16. Drive block; 17. Bracket; 18. Slide rod. Detailed Implementation

[0022] The following illustrations will reveal several embodiments of the present invention. For clarity, many physical details will be described in the following description. However, it should be understood that these physical details should not be used to limit the present invention. That is, in some embodiments of the present invention, these physical details are not essential. Furthermore, for the sake of simplicity, some conventional structures and components will be shown in a simple schematic manner in the illustrations.

[0023] Please see Figure 1 , 2 3, 4, This utility model discloses a slag outlet protection device for a smelting furnace, comprising a slag outlet body 1, a slag discharge trough 2 on one side of the slag outlet body 1, a drive box 3 on both sides of the slag discharge trough 2, a first gear 4 rotatably connected inside each drive box 3, a second gear 5 rotatably connected inside each drive box 3, a drive plate 6 fixedly connected to each second gear 5, a first protective cover 7 above the slag discharge trough 2, a second protective cover 8 slidably connected inside the first protective cover 7, a first hydraulic rod fixedly installed on the first protective cover 7, and three sliding grooves 9 on the outer surface of the first protective cover 7. All components described in this application are made of high-temperature resistant materials conforming to metallurgical standards. The slag outlet body 1 is located above the slag discharge trough 2, and the internal parts of the slag outlet body 1 and the slag discharge trough 2, etc., that come into contact with the slag, are... All surfaces are covered with refractory bricks. The drive box 3 is fixedly connected to the ground. The drive box 3 is symmetrically installed. Each first gear 4 meshes with a second gear 5. The first gear 4 and the second gear 5 are of the same specification. Each drive plate 6 is fixedly connected to the first protective cover 7. The other end of the first hydraulic rod is fixedly connected to the second protective cover 8. When the slag outlet body 1 discharges slag, the first gear 4 is rotated. The first gear 4 drives the second gear 5 to rotate. The second gear 5 drives the drive plate 6 to rotate. The drive plate 6 drives the first protective cover 7 and other components to rotate. This causes the first protective cover 7 to block the top of the slag discharge trough 2 by rotating. The first hydraulic rod is activated by the relevant hydraulic control mechanism. The first hydraulic rod drives the second protective cover 8 to slide towards the slag outlet body 1, thus completing the blocking of the slag outlet body 1 and preventing slag from splashing.

[0024] A baffle 10 is provided above the slag discharge trough 2. A top block 11 is fixedly connected to the outer surface of the baffle 10. Refractory material is provided on the side of the baffle 10 near the slag discharge port body 1. The top block 11 and the baffle 10 are used to seal the slag discharge port body 1.

[0025] A support arm 12 is fixedly connected to the outer surface of the top block 11. The other end of the support arm 12 is rotatably connected to a bottom beam 13. The bottom beam 13 is located above the slag outlet body 1. Both ends of the bottom beam 13 are fixedly connected to the outer surfaces of the two drive boxes 3 respectively. The bottom beam 13 supports the top block 11 and the baffle 10 through the support arm 12.

[0026] Two transmission rods 14 are fixedly connected to the other end of the support arm 12. Each transmission rod 14 is rotatably connected to the bottom beam 13. The transmission rods 14 are symmetrically installed. Each transmission rod 14 is rotatably connected to a drive box 3. Each transmission rod 14 is fixedly connected to a corresponding first gear 4. When the support arm 12 rotates, the support arm 12 rotates through the first gear 4 of the transmission rod 14.

[0027] The middle section of the support arm 12 is rotatably connected to two connecting rods 15. The two connecting rods 15 are symmetrically installed. The connecting rods 15 are used to drive the support arm 12 to rotate, thereby causing the support arm 12 to drive the top block 11 and the baffle 10 to rotate, thereby realizing the opening or sealing of the slag outlet body 1.

[0028] A second hydraulic rod is fixedly installed on the upper surface of the bottom beam 13. The other end of the second hydraulic rod is fixedly connected to a drive block 16. The drive block 16 is rotatably connected to the other ends of two connecting rods 15. The extension and retraction of the second hydraulic rod is controlled by a related hydraulic drive device, so that the second hydraulic rod can drive the drive block 16 to move up and down. This causes the drive block 16 to drive the support arm 12 to rotate through the connecting rods 15. When the drive block 16 moves upward, the drive block 16 drives the top block 11 and the baffle 10 to rotate through the support arm 12, so that the baffle 10 is disengaged from the slag outlet body 1, allowing the slag in the smelting furnace to flow into the slag discharge trough 2 through the slag outlet body 1. When the drive block 16 moves downward, the drive block 16 drives the support arm 12 to drive the top block 11 and the baffle 10 to rotate, thereby sealing the slag outlet body 1.

[0029] A bracket 17 is fixedly connected to the upper surface of the bottom beam 13. Two slide rods 18 are fixedly connected inside the bracket 17. The slide rods 18 are symmetrically installed. The outer surface of each slide rod 18 is slidably connected to the inside of the drive block 16. The slide rod 18 plays an auxiliary limiting role in the movement of the drive block 16.

[0030] The implementation principle is as follows: During slag discharge, the second hydraulic rod is activated, which drives the drive block 16 to move upward. The drive block 16 drives the support arm 12 to rotate through the connecting rod 15. The support arm 12 drives the top block 11 and the baffle 10 to rotate. The baffle 10 disengages from the slag outlet body 1, and the slag flows into the interior of the slag discharge trough 2 through the slag outlet body 1. At the same time, the support arm 12 drives the first gear 4 to rotate through the transmission rod 14. The first gear 4 drives the second gear 5 to rotate. The second gear 5 drives the drive plate 6 and the first protective cover 7 to rotate, thereby blocking the slag discharge trough 2. The first hydraulic rod is activated, which drives the second protective cover 8 to slide towards the slag outlet body 1, thereby blocking the slag outlet body 1 and preventing slag from splashing outward.

[0031] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A slag outlet protection device for a smelting furnace, comprising a slag outlet body (1), characterized in that: A slag discharge trough (2) is provided on one side of the slag discharge port body (1). A drive box (3) is provided on both sides of the slag discharge trough (2). A first gear (4) is rotatably connected inside each drive box (3). A second gear (5) is rotatably connected inside each drive box (3). A drive plate (6) is fixedly connected to each second gear (5). A first protective cover (7) is provided above the slag discharge trough (2). A second protective cover (8) is slidably connected inside the first protective cover (7). A first hydraulic rod is fixedly installed on the first protective cover (7). Three sliding grooves (9) are opened on the outer surface of the first protective cover (7).

2. The slag outlet protection device for a smelting furnace according to claim 1, characterized in that: A baffle (10) is provided above the slag discharge trough (2), and a top block (11) is fixedly connected to the outer surface of the baffle (10).

3. The slag outlet protection device for a smelting furnace according to claim 2, characterized in that: A support arm (12) is fixedly connected to the outer surface of the top block (11), and a bottom beam (13) is rotatably connected to the other end of the support arm (12).

4. The slag outlet protection device for a smelting furnace according to claim 3, characterized in that: The other end of the support arm (12) is fixedly connected to two transmission rods (14), each of which is rotatably connected to the bottom beam (13).

5. The slag outlet protection device for a smelting furnace according to claim 3, characterized in that: The middle section of the support arm (12) is rotatably connected to two connecting rods (15), and the two connecting rods (15) are symmetrically installed.

6. The slag outlet protection device for a smelting furnace according to claim 3, characterized in that: A second hydraulic rod is fixedly installed on the upper surface of the bottom beam (13), and a drive block (16) is fixedly connected to the other end of the second hydraulic rod.

7. The slag outlet protection device for a smelting furnace according to claim 3, characterized in that: A bracket (17) is fixedly connected to the upper surface of the bottom beam (13), and two sliding rods (18) are fixedly connected inside the bracket (17).

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