Novel steel ladle bottom blowing system

Abstract

The utility model provides a novel steel ladle bottom blowing system, and belongs to the technical field of steel ladles. The novel steel ladle bottom blowing system comprises a steel ladle body cross beam, a steel ladle body comprises refractory lining bricks, an alloy steel layer and air bricks, the refractory lining bricks are fixedly connected with the alloy steel layer, the air bricks are fixedly connected with the alloy steel layer, a bottom blowing mechanism is arranged on the steel ladle body, and the bottom blowing mechanism is arranged on the steel ladle body. The bottom blowing mechanism comprises a bottom blowing pipe, an adapter and a conveying pipe, and the bottom blowing pipe is fixedly connected with the refractory lining brick; the adapter is fixedly connected with the bottom blowing pipe; the two ends of the conveying pipes are fixedly connected with the conversion head and the air brick respectively, the bottom blowing mechanism is arranged, gas is blown in from the bottom blowing pipe, passes through the conversion head, is blown out from the four annular conveying pipes at equal intervals, passes through the air brick and enters molten steel in an alloy steel layer, the four conveying pipes convey the gas at the same time, and the molten steel in the alloy steel layer is blown out. And the molten steel reaction is more thorough.

Description

Technical Field

[0001] The utility model relates to the technical field of ladle, in particular to a novel ladle bottom blowing system. Background Art

[0002] A ladle is a device used to melt and store molten steel. It is usually a large, sealable container made of heavy steel plates with sufficient strength and high temperature resistance. The ladle plays an important role in the steel smelting process. It can withstand high temperature and high pressure, and can be poured and grouted through specific devices. The design and manufacture of the ladle need to take into account the melting temperature, fluidity and interaction between the molten steel and the ladle to ensure the quality and production efficiency of the molten steel. The ladle also needs to be maintained and repaired regularly to ensure its working stability and safety. Bottom blowing of the ladle refers to the spraying of high-pressure gas into the molten pool through a nozzle at the bottom of the ladle to promote the mixing of the molten steel and the reduction of oxides, which can improve the quality and uniformity of the molten steel, increase the temperature and oxygen content of the molten steel, reduce the impurities and gas content in the molten steel, improve the fluidity and thermal conductivity of the molten steel, and improve the purification and deoxidation effect of the molten steel.

[0003] The existing ladle is generally only equipped with a bottom blowing air pipe, which does not react completely to the molten steel in the molten steel cavity. Therefore, we propose a new ladle bottom blowing system to solve the above problems. Utility Model Content

[0004] In order to make up for the above deficiencies, the utility model provides a novel ladle bottom blowing system which overcomes the above technical problems or at least partially solves the above problems.

[0005] The utility model provides a new ladle bottom blowing system, comprising

[0006] The ladle body crossbeam comprises a refractory lining brick, an alloy steel layer and a gas-permeable brick, wherein the refractory lining brick and the alloy steel layer are fixedly connected, the gas-permeable brick and the alloy steel layer are fixedly connected, and a bottom blowing mechanism is arranged on the ladle body, wherein the bottom blowing mechanism comprises

[0007] A bottom blowing pipe, wherein the bottom blowing pipe is fixedly connected to the refractory lining brick;

[0008] A conversion head, wherein the conversion head is fixedly connected to the bottom blowing pipe;

[0009] The delivery pipe has two ends fixedly connected to the conversion head and the air-permeable brick respectively, and four delivery pipes are provided.

[0010] In a preferred solution, the four delivery pipes are arranged in a ring shape and at equal intervals.

[0011] In a preferred solution, two support plates are fixedly connected to the bottom of the crossbeam, and a lifting lug is fixedly connected to the top of the crossbeam.

[0012] In a preferred solution, a dumping mechanism is provided between the two support plates and the ladle body, and the dumping mechanism comprises a cylinder, the cylinder is fixedly connected to the outer side of the support plate, and the telescopic end of the cylinder is fixedly connected to a toothed plate.

[0013] In a preferred solution, the support plate is rotatably connected to a rotating shaft, the rotating shaft is connected to the refractory lining bricks, the outer wall of the rotating shaft is fixedly connected to a gear, and the gear is meshingly connected to a gear plate.

[0014] In a preferred solution, a disassembly mechanism is provided between the crossbeam and the refractory lining bricks, and the disassembly mechanism comprises a groove, and the groove is provided at the bottom of the crossbeam.

[0015] In a preferred solution, the crossbeam is rotatably connected to a screw rod through a bearing, a limiting rod is fixedly connected between the inner walls of the groove, the screw rod is threadedly connected to a slider, the slider is slidably connected to the limiting rod, and the slider is fixedly connected to the support plate.

[0016] In a preferred solution, one end of the screw rod is fixedly connected to a transmission shaft, the other end of the transmission shaft is fixedly connected to a turntable, and the outer side of the turntable is fixedly connected to a turning handle.

[0017] In a preferred solution, a fixing seat is fixedly connected to the outer side of the refractory lining brick, a mounting groove is provided on the outer side of the fixing seat, a mounting block is fixedly connected to a side of the rotating shaft close to the fixing seat, and the mounting block is plugged into the inner wall of the mounting groove.

[0018] The utility model provides a novel ladle bottom blowing system, and its beneficial effects include:

[0019] 1. By setting up a bottom blowing mechanism, the gas is blown in from the bottom blowing pipe, passes through the conversion head, and is blown out from four annular equidistant conveying pipes, and enters the molten steel inside the alloy steel layer through the air-permeable bricks. The four conveying pipes convey gas at the same time, making the molten steel react more thoroughly.

[0020] 2. By turning the handle, the handle drives the turntable to rotate, the turntable drives the transmission shaft to rotate, and the transmission shaft drives the screw to rotate. Under the restriction of the limit rod, the slider slides away from the ladle body, and the slider drives the right support plate to move outward until the mounting block on one side is pulled out of the mounting groove, and the ladle body can be removed, which is convenient for disassembly of the ladle body for daily maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 It is a three-dimensional diagram of the overall structure provided by the embodiment of the utility model;

[0023] Figure 2 A schematic diagram of the cross-sectional structure of a steel plate body provided in an embodiment of the utility model;

[0024] Figure 3 A schematic diagram of a cross-beam cross section and a support plate structure provided for an embodiment of the utility model;

[0025] Figure 4 The utility model embodiment provides Figure 3 A schematic diagram of the enlarged structure of the middle part A;

[0026] Figure 5 A schematic diagram of the refractory lining brick structure provided for an embodiment of the utility model;

[0027] In the figure: 1. ladle body; 101. refractory lining brick; 102. alloy steel layer; 103. air-permeable brick; 2. bottom blowing mechanism; 201. bottom blowing pipe; 202. conversion head; 203. conveying pipe; 3. dumping mechanism; 301. cylinder; 302. tooth plate; 303. rotating shaft; 304. gear; 4. crossbeam; 5. lifting ear; 6. supporting plate; 7. disassembly mechanism; 701. groove; 702. screw rod; 703. limit rod; 704. slider; 705. transmission shaft; 706. turntable; 707. turning handle; 708. fixing seat; 709. mounting groove; 710. mounting block. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] Reference Figure 1-Figure 5The utility model provides a technical solution: a novel ladle bottom blowing system, including a ladle body 1 and a crossbeam 4, the ladle body 1 including a refractory lining brick 101, an alloy steel layer 102 and a gas-permeable brick 103, the refractory lining brick 101 and the alloy steel layer 102 are fixedly connected, the gas-permeable brick 103 and the alloy steel layer 102 are fixedly connected, a bottom blowing mechanism 2 is arranged on the ladle body 1, the bottom blowing mechanism 2 includes a bottom blowing pipe 201, a conversion head 202 and a conveying pipe 203, the bottom blowing pipe 201 is fixedly connected to the refractory lining brick 101; the conversion head 202 is fixedly connected to the bottom blowing pipe 201; both ends of the delivery pipe 203 are respectively fixedly connected to the conversion head 202 and the air-permeable brick 103, and four delivery pipes 203 are provided, and the four delivery pipes 203 are arranged in an annular shape and equidistantly. By setting the bottom blowing mechanism 2, the gas is blown in from the bottom blowing pipe 201, passes through the conversion head 202, and is blown out from the four annular equidistant delivery pipes 203, and enters the molten steel inside the alloy steel layer 102 through the air-permeable brick 103. The four delivery pipes 203 deliver gas at the same time, so that the molten steel reacts more thoroughly;

[0030] Two support plates 6 are fixedly connected to the bottom of the crossbeam 4, and a lifting lug 5 is fixedly connected to the top of the crossbeam 4. A dumping mechanism 3 is arranged between the two support plates 6 and the ladle body 1. The dumping mechanism 3 includes a cylinder 301, which is fixedly connected to the outer side of the support plate 6. The telescopic end of the cylinder 301 is fixedly connected to a tooth plate 302. The support plate 6 is rotatably connected to a rotating shaft 303, which is connected to the refractory lining brick 101. The outer wall of the rotating shaft 303 is fixedly connected to a gear 304, which is meshed with the tooth plate 302. The lifting lug 5 is used to lift the ladle body 1 to a certain height. By starting the cylinder 301, the telescopic end of the cylinder 301 moves, thereby driving the tooth plate 302 to move, the tooth plate 302 drives the gear 304 to rotate, and the gear 304 drives the ladle body 1 to rotate through the rotating shaft 303, so that the ladle body 1 can be easily tilted, so that the internal molten steel can be easily poured out;

[0031] A disassembly mechanism 7 is provided between the crossbeam 4 and the refractory lining brick 101, and the disassembly mechanism 7 includes a groove 701, the groove 701 is opened at the bottom of the crossbeam 4, the crossbeam 4 is rotatably connected with a screw rod 702 through a bearing, a limit rod 703 is fixedly connected between the inner walls of the groove 701, the screw rod 702 is threadedly connected with a slider 704, the slider 704 is slidably connected to the limit rod 703, the slider 704 is fixedly connected to the support plate 6, one end of the screw rod 702 is fixedly connected with a transmission shaft 705, the other end of the transmission shaft 705 is fixedly connected with a turntable 706, the outer side of the turntable 706 is fixedly connected with a turning handle 707, the outer side of the refractory lining brick 101 is fixedly connected with a fixing seat 708, and the fixing seat 708 is fixedly connected to the outer side of the refractory lining brick 101. An installation groove 709 is provided on the outer side of 08, and a mounting block 710 is fixedly connected to a side of the rotating shaft 303 close to the fixed seat 708. The mounting block 710 is plugged into the inner wall of the mounting groove 709. By turning the turning handle 707, the turning handle 707 drives the turntable 706 to rotate, the turntable 706 drives the transmission shaft 705 to rotate, and the transmission shaft 705 drives the screw rod 702 to rotate. Under the restriction of the limit rod 703, the slider 704 slides in the direction away from the ladle body 1, and the slider 704 drives the right support plate 6 to move outward until the mounting block 710 on one side is pulled out of the mounting groove 709, and the ladle body 1 can be removed, which is convenient for disassembling the ladle body 1 for daily maintenance.

[0032] Specifically, the working process or working principle of the new ladle bottom blowing system is as follows: by setting up a bottom blowing mechanism 2, gas is blown in from the bottom blowing pipe 201, passes through the conversion head 202, and is blown out by four annular equidistant delivery pipes 203, and enters into the molten steel inside the alloy steel layer 102 through the air-permeable brick 103. The four delivery pipes 203 deliver gas at the same time, so that the molten steel reacts more thoroughly. By starting the cylinder 301, the telescopic end of the cylinder 301 moves, thereby driving the tooth plate 302 to move, the tooth plate 302 drives the gear 304 to rotate, and the gear 304 drives the ladle body 1 to rotate through the rotating shaft 303, so that the ladle body 1 can be easily tilted, so that the internal molten steel can be easily poured out.

[0033] When not in use, the handle 707 can be turned, and the handle 707 drives the turntable 706 to rotate, and the turntable 706 drives the transmission shaft 705 to rotate, and the transmission shaft 705 drives the screw rod 702 to rotate. Under the restriction of the limit rod 703, the slider 704 slides in the direction away from the ladle body 1, and the slider 704 drives the right support plate 6 to move outward until the mounting block 710 on one side is pulled out of the mounting groove 709, and the ladle body 1 can be removed, which is convenient for disassembly of the ladle body 1 for daily maintenance and care.

Claims

1. A new ladle bottom blowing system, characterized in that: The invention comprises a ladle body (1) and a crossbeam (4); the ladle body (1) comprises a refractory lining brick (101), an alloy steel layer (102) and a gas-permeable brick (103); the refractory lining brick (101) and the alloy steel layer (102) are fixedly connected; the gas-permeable brick (103) and the alloy steel layer (102) are fixedly connected; a bottom blowing mechanism (2) is arranged on the ladle body (1); the bottom blowing mechanism (2) comprises A bottom blowing pipe (201), wherein the bottom blowing pipe (201) is fixedly connected to the refractory lining brick (101); A conversion head (202), wherein the conversion head (202) is fixedly connected to the bottom blowing pipe (201); A delivery pipe (203), both ends of which are fixedly connected to the conversion head (202) and the air-permeable brick (103), respectively, and four delivery pipes (203) are provided.

2. A new ladle bottom blowing system according to claim 1, characterized in that: The four conveying pipes (203) are arranged in a ring shape and at equal intervals.

3. A new ladle bottom blowing system according to claim 2, characterized in that: Two support plates (6) are fixedly connected to the bottom of the cross beam (4), and a lifting lug (5) is fixedly connected to the top of the cross beam (4).

4. A new ladle bottom blowing system according to claim 3, characterized in that: A dumping mechanism (3) is provided between the two support plates (6) and the ladle body (1), and the dumping mechanism (3) comprises a cylinder (301), wherein the cylinder (301) is fixedly connected to the outer side of the support plate (6), and the telescopic end of the cylinder (301) is fixedly connected to a tooth plate (302).

5. A new ladle bottom blowing system according to claim 4, characterized in that: The support plate (6) is rotatably connected to a rotating shaft (303), the rotating shaft (303) is connected to the refractory lining brick (101), the outer wall of the rotating shaft (303) is fixedly connected to a gear (304), and the gear (304) is meshingly connected to the toothed plate (302).

6. A novel ladle bottom blowing system according to claim 5, characterized in that: A disassembly mechanism (7) is provided between the crossbeam (4) and the refractory lining brick (101), and the disassembly mechanism (7) comprises a groove (701), and the groove (701) is opened at the bottom of the crossbeam (4).

7. A novel ladle bottom blowing system according to claim 6, characterized in that: The crossbeam (4) is rotatably connected to a screw rod (702) via a bearing, a limit rod (703) is fixedly connected between the inner walls of the groove (701), the screw rod (702) is threadedly connected to a slider (704), the slider (704) is slidably connected to the limit rod (703), and the slider (704) is fixedly connected to the support plate (6).

8. A novel ladle bottom blowing system according to claim 7, characterized in that: One end of the screw rod (702) is fixedly connected to a transmission shaft (705), the other end of the transmission shaft (705) is fixedly connected to a rotating disk (706), and the outer side of the rotating disk (706) is fixedly connected to a turning handle (707).

9. A novel ladle bottom blowing system according to claim 8, characterized in that: A fixing seat (708) is fixedly connected to the outer side of the refractory lining brick (101), a mounting groove (709) is provided on the outer side of the fixing seat (708), a mounting block (710) is fixedly connected to a side of the rotating shaft (303) close to the fixing seat (708), and the mounting block (710) is plugged into the inner wall of the mounting groove (709).

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