An automatic lid-closing device for vehicle-mounted molten steel slag jars

Abstract

This utility model relates to an automatic capping device for a vehicle-mounted molten steel slag tank, belonging to the technical field of steel slag transportation equipment in the metallurgical industry. The technical solution is as follows: the steel slag tank (1) is placed on a transport vehicle, the vehicle frame (8) is fixed on the trailer chassis of the transport vehicle, the upper ends of the two front support arms (3) and the two rear support arms (4) are rotatably connected to the slag tank cover (2) through positioning shafts (9), the lower ends of the two front support arms (3) and the two rear support arms (4) are rotatably connected to the vehicle frame (8) through rotating shafts (10), the two front support arms (3) and the two rear support arms (4) are connected together through a support beam (5), the cylinder body of the hydraulic cylinder (6) is fixed on the vehicle frame (8), and the cylinder rod of the hydraulic cylinder (6) is driven to connect with the support beam (5). This utility model utilizes the existing transport vehicle trailer chassis on the market, and drives the double support arms to make equal arc and equidistant movements through the hydraulic cylinder, so as to realize the smooth opening and closing of the slag tank cover.

Description

Technical Field

[0001] This utility model relates to an automatic capping device for a vehicle-mounted molten steel slag tank, belonging to the technical field of steel slag transportation equipment in the metallurgical industry. Background Technology

[0002] Electric arc furnace steelmaking plants generate a large amount of high-temperature steel slag during the steelmaking and refining processes. This slag is typically stored temporarily in a liquid state in slag troughs until the troughs are full, at which point it is processed in the next slag treatment step. The steel slag is primarily processed using a wind-quenching and blowing method, which requires maintaining the slag in a high-temperature liquid state to improve the yield of finished steel balls.

[0003] Currently, steel companies typically use open-top trucks to transport slag hoppers, which easily leads to safety accidents such as slag spillage and fumes escaping during transport. Therefore, how to quickly and safely cover slag hoppers has become a crucial problem to solve during slag transfer. Previously, overhead cranes were used to hoist the covers, but lowering and positioning the slag hoppers with the crane hooks was very difficult, often resulting in collisions between the slag hoppers and the covers, leading to low production efficiency. Therefore, a vehicle-mounted, energy-saving, and environmentally friendly automatic covering device for molten steel slag has been developed, effectively solving the above problems. This device is also suitable for road transport of molten steel. Utility Model Content

[0004] The purpose of this invention is to provide a vehicle-mounted automatic lid-closing device for molten steel slag jars. Utilizing the existing trailer chassis of transport vehicles on the market, the device uses hydraulic cylinders to drive double support arms to perform equidistant arc movements, thereby achieving smooth opening and closing of the slag jar lid and solving the problems existing in the background technology.

[0005] The technical solution of this utility model is:

[0006] An automatic capping device for a vehicle-mounted molten steel slag ladle includes a steel slag ladle, a slag ladle cover, front support arms, rear support arms, support beams, hydraulic cylinders, a vehicle-mounted frame, positioning shafts, and rotating shafts. The steel slag ladle is placed on a transport vehicle, and the vehicle-mounted frame is fixed to the trailer chassis of the transport vehicle. The upper ends of the two front support arms and the two rear support arms are rotatably connected to the slag ladle cover via positioning shafts, and the lower ends of the two front support arms and the two rear support arms are rotatably connected to the vehicle-mounted frame via rotating shafts. The two front support arms and the two rear support arms are connected together by corresponding support beams. The cylinder body is fixed to the vehicle-mounted frame, and the cylinder rod is drivenly connected to the support beams.

[0007] Furthermore, the two front support arms and the two rear support arms are of equal length, forming a rectangular structure.

[0008] Furthermore, the vehicle frame is provided with a load-bearing anvil that cooperates with the support beam.

[0009] The beneficial effects of this utility model are: by utilizing the existing transport vehicle trailer chassis on the market, the double support arms are driven by the hydraulic cylinder to make equal arc and equidistant movements, so as to realize the smooth opening and closing of the slag hopper cover. The whole set of actions is smooth, safe and reliable. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model;

[0011] In the diagram: 1. Slag hopper; 2. Slag hopper cover; 3. Front support arm; 4. Rear support arm; 5. Support beam; 6. Hydraulic cylinder; 7. Bearing anvil; 8. Vehicle frame; 9. Positioning shaft; 10. Rotating shaft. Detailed Implementation

[0012] The present invention will be further described below with reference to the accompanying drawings and examples.

[0013] See attached document Figure 1 An automatic capping device for a vehicle-mounted molten steel slag ladle includes a steel slag ladle 1, a slag ladle cover 2, front support arms 3, rear support arms 4, support beams 5, hydraulic cylinders 6, a vehicle-mounted frame 8, positioning shafts 9, and rotating shafts 10. The steel slag ladle 1 is placed on a transport vehicle, and the vehicle-mounted frame 8 is fixed to the trailer chassis of the transport vehicle. The upper ends of the two front support arms 3 and the two rear support arms 4 are rotatably connected to the slag ladle cover 2 via positioning shafts 9, and the lower ends of the two front support arms 3 and the two rear support arms 4 are rotatably connected to the vehicle-mounted frame 8 via rotating shafts 10. The two front support arms 3 and the two rear support arms 4 are connected together by corresponding support beams 5. The cylinder body of the hydraulic cylinder 6 is fixed on the vehicle-mounted frame 8, and the cylinder rod of the hydraulic cylinder 6 is drivenly connected to the support beams 5.

[0014] In this example, refer to the appendix. Figure 1 The automatic capping device includes a slag tank 1, a slag tank cover 2, a front support arm 3, a rear support arm 4, a support beam 5, a hydraulic cylinder 6, a load-bearing anvil 7, a vehicle frame 8, a positioning shaft 9, and a rotating shaft 10. The vehicle frame 8 is welded and fixed to the chassis of the transport vehicle trailer. A load-bearing anvil 7 is welded to each side of the vehicle frame 8, which can be used as the load-bearing point of the support beam 5 after the slag tank cover 2 is opened, so as to avoid the front support arm 3 and the rear support arm 4 from being deformed by shear force.

[0015] In the direction of movement of the steel slag tank 1, there are two front support arms 3 and two rear support arms 4. The two front support arms 3 and the two rear support arms 4 are of equal length and form a rectangular structure. The upper end of the rectangular structure is connected to the slag tank cover 2 through the positioning shaft 9, and the lower end is connected to the vehicle frame 8 through the rotating shaft 10.

[0016] The lever of the hydraulic cylinder 6 connects to the support beam 5 between the two front support arms 3. The support beam 5 is made of thickened H-beam steel, which can withstand a large tensile load. Through the pushing and pulling of the hydraulic cylinder 6, the two front support arms 3 and the two rear support arms 4 in the rectangular structure move equidistantly along the arc of their respective connected rotating shafts 10, thereby driving the slag pot cover 2 to open and close. The whole set of actions is smooth, safe and reliable.

Claims

1. A vehicle-mounted automatic lidding device for molten steel slag ladles, characterized in that: The system includes a slag tank (1), a slag tank cover (2), a front support arm (3), a rear support arm (4), a support beam (5), a hydraulic cylinder (6), a vehicle frame (8), a positioning shaft (9), and a rotating shaft (10). The slag tank (1) is placed on a transport vehicle, and the vehicle frame (8) is fixed on the trailer chassis of the transport vehicle. The upper ends of the two front support arms (3) and the two rear support arms (4) are rotatably connected to the slag tank cover (2) through the positioning shaft (9), and the lower ends of the two front support arms (3) and the two rear support arms (4) are rotatably connected to the vehicle frame (8) through the rotating shaft (10). The two front support arms (3) and the two rear support arms (4) are connected together through corresponding support beams (5). The cylinder body of the hydraulic cylinder (6) is fixed on the vehicle frame (8), and the cylinder rod of the hydraulic cylinder (6) is drivenly connected to the support beam (5).

2. The vehicle-mounted automatic lidding device for molten steel slag ladles according to claim 1, characterized in that: The two front support arms (3) and the two rear support arms (4) are of equal length and form a rectangular structure.

3. The vehicle-mounted automatic lidding device for molten steel slag ladles according to claim 1, characterized in that: The vehicle frame (8) is provided with a load-bearing anvil (7) that cooperates with the support beam (5).

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