Rotary cover uncovering device for blast furnace torpedo tank

Abstract

The utility model discloses a rotary uncovering buckle cover device for blast furnace torpedo tank, including base, hydraulic rotary motor, lift oil cylinder, support stand, crossbeam, hook, the base sets up in the railway line side part for transporting torpedo tank, the lower extreme of support stand is fixedly connected with base, and the upper end fixed hydraulic rotary motor, the cylinder body of lift oil cylinder is fixed on the vertical rotating shaft of hydraulic rotary motor top, one end of crossbeam is connected with the top end of telescopic link of lift oil cylinder, the hook is fixed in the middle part of torpedo tank cover plate of the torpedo tank car transported torpedo tank on the railway line and corresponds with crossbeam, and hydraulic rotary motor and lift oil cylinder are connected with hydraulic power system through hydraulic oil pipe, the utility model discloses setting up the hydraulic uncovering buckle cover device of multiple torpedo tank shared in fixed position, can easily complete the uncovering buckle cover operation of torpedo tank, can reduce the purchase, maintenance and operation cost of equipment compared with traditional on -vehicle hydraulic uncovering buckle cover system, eliminates the hidden danger of safety.

Description

Technical Field

[0001] This utility model relates to a rotary opening and closing device for a blast furnace torpedo ladle, belonging to the field of metallurgical equipment technology. Background Technology

[0002] Torpedo ladle cars are used to transport molten iron from blast furnaces. When these cars travel between the blast furnace and the steelmaking workshop, the high-temperature molten iron oxidizes upon contact with air, generating a large amount of dust. This is especially true during empty ladle transport, where the remaining molten iron has even greater contact with air, producing significant smoke and dust that severely pollutes the environment. Therefore, torpedo ladles need to be covered to prevent smoke and dust from escaping. The traditional approach is to equip each torpedo ladle with a hydraulic cover-opening system, with the sealing cover fixed to a telescopic boom. Since torpedo ladle cars lack a power source, this onboard cover-opening system can only be powered by a fixed power source upon arrival at the blast furnace or steelmaking workshop to complete the cover-opening and closing operation. This method has the following disadvantages:

[0003] ①Each torpedo ladle is equipped with a hydraulic lifting cover system, which is costly. In addition, the system is transported back and forth with the molten iron, and its own weight wastes a lot of fuel or electricity.

[0004] ②The vehicle-mounted hydraulic lid-opening system is installed on the high-temperature tank. The hydraulic system has a high temperature and a high failure rate. Oil leakage from the hydraulic system can also cause a fire, posing a significant safety hazard.

[0005] ③ The torpedo tanker has no power source and requires manual plugging and unplugging of the power source after the vehicle is stopped. This not only results in low work efficiency but also poses a significant risk of electric shock in rainy or snowy weather.

[0006] ④ The tank needs to be shut down for maintenance of the cover-opening system, resulting in high maintenance and operating costs.

[0007] In view of the above problems, it is necessary to improve the traditional torpedo canister lid closing device. Utility Model Content

[0008] The purpose of this utility model is to address the shortcomings of existing technologies by providing a rotary lifting cover device for blast furnace torpedo ladle, thereby reducing the purchase, maintenance and operating costs of the equipment and eliminating safety hazards.

[0009] To achieve the above objectives, the present invention adopts the following technical solution:

[0010] A rotary lifting cover device for a blast furnace torpedo ladle includes a base, a hydraulic rotary motor, a lifting cylinder, a support column, a crossbeam, a hook, and a hydraulic power system. The base is installed on the side of the railway line used to transport torpedo ladle in the blast furnace plant or steelmaking workshop. The lower end of the support column is fixedly connected to the base, and the upper end is fixed to the hydraulic rotary motor. The cylinder body of the lifting cylinder is fixed on the vertical rotating shaft at the top of the hydraulic rotary motor. One end of the crossbeam is connected to the top of the telescopic rod of the lifting cylinder. The hook is fixed to the middle of the torpedo ladle cover plate of the torpedo ladle transported by the torpedo ladle car on the railway line and corresponds to the crossbeam. The hydraulic rotary motor and the lifting cylinder are connected to the hydraulic power system through hydraulic oil pipes.

[0011] The aforementioned blast furnace torpedo ladle uses a rotating cover device, the base of which is installed between two railway lines used for transporting torpedo ladle in the blast furnace plant or steelmaking workshop.

[0012] The aforementioned rotating lifting cover device for blast furnace torpedo pots has an inverted L-shaped hook with an anti-disengagement groove at the lower part of its horizontal arm that matches the horizontal beam.

[0013] The aforementioned blast furnace torpedo ladle rotary cover device has 2 to 6 crossbeams, which are evenly distributed around the telescopic rod of the lifting cylinder.

[0014] The aforementioned blast furnace torpedo ladle uses a rotating lifting cover device, and the crossbeam is made of H-beam steel or I-beam steel.

[0015] This invention provides a hydraulic cover-opening device for multiple torpedo canisters, which can be installed at a fixed location near the factory. This device can easily complete the cover-opening operation of the torpedo canisters. Compared with the traditional vehicle-mounted hydraulic cover-opening system, this device can reduce the purchase, maintenance and operation costs of the equipment and eliminate safety hazards. Attached Figure Description

[0016] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

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

[0018] Figure 2 A schematic diagram of the torpedo canister cover and hooks;

[0019] Figure 3 Top view of the beam.

[0020] The following are the labels in the diagram: 1. Base; 2. Hydraulic rotary motor; 3. Lifting cylinder; 4. Support column; 5. Crossbeam; 6. Torpedo canister cover; 7. Hook; 8. Hydraulic power system; 9. Hydraulic oil pipe; 10. Railway line foundation; 11. Sleeper; 12. Rail; 13. Torpedo canister car; 14. Torpedo canister; 15. Anti-disengagement groove. Detailed Implementation

[0021] This invention addresses the shortcomings of existing technologies by providing a torpedo canister opening and closing device that does not require an on-board hydraulic system.

[0022] See Figures 1-3 This utility model includes a base 1, a hydraulic rotary motor 2, a lifting cylinder 3, a support column 4, a crossbeam 5, a hook 7, and a hydraulic power system 8. A foundation pit is dug in the middle of two railway lines where the torpedo ladle covers need to be opened in the blast furnace plant and steelmaking workshop. The base 1 is poured with reinforced concrete, and anchor bolts are pre-embedded in the base 1. Support columns 4 are fabricated by horizontally welding 400mm*400mm steel plates to both ends of a vertical steel pipe with a diameter of 300mm. One end of the support column 4 is fixed to the anchor bolts of the base 1, and the other end is fitted with the hydraulic rotary motor 2. The cylinder body of the lifting cylinder 3 is fixed to the rotating shaft of the hydraulic rotary motor 2. Crossbeams 5 are fabricated using H-beams or I-beams. Multiple crossbeams 5 are evenly arranged around a short section of steel pipe, with one end of each crossbeam 5 welded to the steel pipe. The steel pipe is then fixed to the top of the telescopic rod of the lifting cylinder 3. The number of crossbeams 5 can be set as needed. Figure 3 Four crossbeams 5 are installed, connected together by steel pipes, forming a cross shape. A hydraulic power system 8 is installed at a suitable location on the blast furnace platform and in the steelmaking workshop. The hydraulic power system 8 is connected to the hydraulic rotary motor 2 and the lifting cylinder 3 by hydraulic oil pipes 9. When the hydraulic power system 8 is working, it can drive the crossbeams 5 to achieve 360° rotation and up-and-down lifting through the hydraulic rotary motor 2 and the lifting cylinder 3. A hook 7 is welded to the center of the torpedo pot cover plate 6.

[0023] The height of the supporting column 4 is equal to the height of the torpedo can opening + 500mm minus the upper limit height of the lifting rod of the hydraulic rotary motor 2 and the lifting cylinder 3; 2 to 6 crossbeams 5 are provided. Figure 3 (4 in total); the hydraulic system working pressure is 160MPa~240MPa; the hook 7 is welded to the center of the torpedo can cover plate 6, and is inverted L-shaped, which can hook the crossbeam 5. The lower part of its cross arm is provided with an anti-disengagement groove 15, and the width of the anti-disengagement groove 15 is 50~80mm greater than the width of the crossbeam 5.

[0024] The working process of this utility model is as follows:

[0025] Beforehand, a crane was used to attach the torpedo canisters 14 on some of the torpedo canisters 13 torpedo canister covers 6.

[0026] Uncovering process:

[0027] Park the torpedo canister car 13 with the torpedo canister cover 6 next to the cover-opening device, start the hydraulic power system 8, operate the hydraulic lifting cylinder 3 to lower the height of the crossbeam 5 to a suitable position; operate the hydraulic rotary motor 2 to rotate the crossbeam 5 to the hook 7; operate the lifting cylinder 3 to drive the crossbeam 5 to lift the hook 7, raising the torpedo canister cover 6; operate the hydraulic rotary motor 2 to rotate to the working position, and the cover-opening operation is completed.

[0028] Capping process:

[0029] Park the torpedo canister 13 that needs to be capped next to the capping device. Operate the hydraulic rotary motor 2 to rotate the cover plate 6 on the crossbeam 5 above the torpedo canister opening. Operate the lifting cylinder 3 to lower its height. After placing the torpedo canister cover plate 6 on the torpedo canister opening, continue to lower the height of the lifting cylinder 3. When the upper surface of the crossbeam 5 is lower than the opening of the hook 7, operate the hydraulic motor 2 to rotate the crossbeam 5 away from the hook 7. Operate the lifting cylinder 3 to raise the crossbeam 5 to the working position. The capping operation is complete.

[0030] An embodiment of this utility model is as follows:

[0031] The base 1 has a length, width and height of 1000mm*1000mm*2000mm, a burial depth of 1500mm, 4 anchor bolts, model J30*600, and a pre-embedded depth of 550mm.

[0032] The hydraulic rotary motor 2 is model GM-4500, with a rated working pressure of 16MPa;

[0033] The lifting cylinder 3 is model CD250H1 / 200 / 120-800, with a rated working pressure of 16MPa;

[0034] Support column 4 is made of seamless steel pipe with model Ø300×8 and a height of 3000mm;

[0035] The material of the crossbeam 5 is 20a type I-beam, with 4 beams arranged in a cross shape, and each beam is 2500mm long.

[0036] The hydraulic power system 8 is model HY1430.

[0037] The beneficial effects of this utility model are: by setting the torpedo canister lid-opening device at a fixed location near the factory, the torpedo canister lid-opening operation can be easily realized by using a lifting cylinder and a rotary motor, which solves the problems of traditional vehicle-mounted hydraulic lid-opening systems that require frequent power plugging and unplugging by personnel, resulting in high failure rate, low safety factor, and wasted energy consumption; at the same time, it reduces equipment cost and operating cost, resulting in significant social benefits.

Claims

1. A rotary lifting cover device for a blast furnace torpedo ladle, characterized in that, The system includes a base (1), a hydraulic rotary motor (2), a lifting cylinder (3), a support column (4), a crossbeam (5), a hook (7), and a hydraulic power system (8). The base (1) is set on the side of the railway line used for transporting torpedo cans in the blast furnace plant or steelmaking workshop. The lower end of the support column (4) is fixedly connected to the base (1), and the upper end is fixed to the hydraulic rotary motor (2). The cylinder body of the lifting cylinder (3) is fixed on the vertical rotating shaft at the top of the hydraulic rotary motor (2). One end of the crossbeam (5) is connected to the top of the telescopic rod of the lifting cylinder (3). The hook (7) is fixed in the middle of the torpedo can cover plate of the torpedo can transported by the torpedo can car on the railway line and corresponds to the crossbeam (5). The hydraulic rotary motor (2) and the lifting cylinder (3) are connected to the hydraulic power system (8) through hydraulic oil pipes (9).

2. The rotary lifting cover device for a blast furnace torpedo ladle according to claim 1, characterized in that, The base (1) is set between two railway lines used for transporting torpedo canisters in a blast furnace plant or steelmaking workshop.

3. A rotary lifting cover device for a blast furnace torpedo ladle according to claim 1 or 2, characterized in that, The hook (7) is an inverted L-shape, and its lower part of the cross arm is provided with an anti-disengagement groove (15) that matches the cross beam (5).

4. The rotary lifting cover device for a blast furnace torpedo ladle according to claim 3, characterized in that, Two to six crossbeams (5) are provided, and they are evenly distributed around the telescopic rod of the lifting cylinder (3).

5. A rotary lifting cover device for a blast furnace torpedo ladle according to claim 4, characterized in that, The crossbeam (5) is made of H-beam steel or I-beam steel.

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