A method for quickly adjusting the length of the steel wire rope of a blast furnace charging car

Abstract

The present invention discloses a method for quickly adjusting the length of a steel wire rope of a blast furnace charging car. The method comprises a blast furnace charging car, a charging steel wire rope and a steel wire drum. The blast furnace charging car is placed on a charging inclined bridge. The charging steel wire rope is fixedly connected to the blast furnace charging car. The charging steel wire rope passes around two sets of redirecting rope pulleys and is connected to the steel wire drum. The present invention adjusts the position for tightening the steel wire rope from the blast furnace charging car to the steel wire drum away from the blast furnace, thereby away from the ore dust environment and avoiding rust. Therefore, the time for adjusting the steel wire rope of the charging car can be greatly reduced from an average of 3 hours to 40 minutes, thereby minimizing the impact on blast furnace output and furnace condition.

Description

Technical Field

[0001] The invention relates to the technical field related to blast furnace steelmaking, and in particular to a method for quickly adjusting the length of a steel wire rope of a blast furnace charging car. Background Art

[0002] Blast furnace steelmaking is a continuous metallurgical method that reduces iron ore to iron in a blast furnace. It is a major modern ironmaking method. During smelting, the blast furnace charge car is required to load iron ore, coke, and flux for slag making from the furnace top using a blast furnace charge car according to the specified ratio. The steel wire rope used to load the charge car is generally 185 meters long. After about four months of use, the steel wire rope will stretch by nearly 400mm, resulting in significant changes in the bottom receiving and top unloading positions of the charge car, affecting the material receiving and unloading of the charge car, such as leakage during receiving and incomplete unloading. Therefore, the steel wire rope needs to be tightened by several hundred millimeters every few months.

[0003] However, the existing material cart adjusting connecting rod is connected to the material cart by a pin shaft. Since the material cart is in a high-dust environment, the pin shaft, the adjusting connecting rod and the material cart are easily stuck together due to rust or dust, which makes it very difficult to remove the pin shaft. Sometimes it may not be removed at all and the pin shaft needs to be cut off with gas cutting. Therefore, the pin shaft removal time is long and the progress is completely uncontrollable. It usually takes 1-3 hours to remove the pin shaft. Summary of the Invention

[0004] The purpose of the present invention is to provide a method for quickly adjusting the length of the steel wire rope of a blast furnace charging car, so as to solve the problem proposed in the above background technology that the current method for adjusting the length of the steel wire rope of a blast furnace charging car is relatively difficult, time-consuming and inefficient.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a device for quickly adjusting the length of the wire rope of a blast furnace charging car, comprising a blast furnace charging car, a charging wire rope and a wire drum, wherein the blast furnace charging car is placed on a charging inclined bridge, and a charging wire rope is fixedly connected to the blast furnace charging car, and the charging wire rope is connected to the wire drum by passing through two sets of redirecting rope pulleys.

[0006] Preferably, there is a trolley adjusting connecting rod between the feeding wire rope and the blast furnace trolley, and the trolley adjusting connecting rod has several mounting holes, and the spacing between the mounting holes is 200 mm. Selecting different mounting holes to connect with the trolley can achieve the effect of tightening the wire rope.

[0007] Preferably, the wire rope head at the end of the feeding wire rope is connected to the wire drum through a rope head wedging sleeve, a rope head wedging block is wedged into the rope head wedging sleeve, and one end of the rope head wedging block is fixedly connected to a wedging block locking bolt.

[0008] Preferably, a method for quickly adjusting the length of a steel wire rope of a blast furnace charging car comprises the following steps:

[0009] (1) Adjustment and preparation: First, rotate the wire drum and release the charging wire rope, so that the blast furnace charge car descends along the charging inclined bridge to the receiving position at the bottom of the charging inclined bridge, and then lock the blast furnace charge car on the charging inclined bridge;

[0010] (2) Disassembling the wire rope: First, turn the wire drum to loosen the feeding wire rope, then loosen the wedge block locking bolt on the rope head wedge block, and then knock the rope head wedge block out of the rope head wedge sleeve by mechanical equipment or manual hammering;

[0011] (3) Tighten the wire rope: After the wire rope head is released from the rope head wedge, the feeding wire rope can be tightened by mechanical equipment or manual means;

[0012] (4) Wedging the wire rope: Pass the tensioned feeding wire rope through the rope head wedging sleeve, and drive the rope head wedging block into the rope head wedging sleeve by mechanical equipment or manual hammering to lock the wire rope head. Then screw the wedging block locking bolt 9 into the rope head wedging block, lock the rope head wedging sleeve and the rope head wedging block together, and then cut off the excess wire rope head.

[0013] (5) Position inspection: Unlock the blast furnace charge car from the receiving position on the loading inclined bridge, then tighten the loading wire rope through the wire drum, pull the blast furnace charge car to the unloading position at the top of the loading inclined bridge, and check whether the blast furnace charge car has reached the top position accurately.

[0014] Preferably, in the steps, the blast furnace charge car should be emptied in advance before being locked, and the locking position of the blast furnace charge car on the charging inclined bridge is a precise material receiving position.

[0015] Preferably, when the wire drum is rotated in the step, the feeding wire rope should be completely loosened so that the feeding wire rope is unwound on the wire drum.

[0016] Preferably, when winding the feeding steel wire rope in the step, the feeding steel wire rope should be completely tightened, and the tightening force should be close to the pulling force of the blast furnace charge car filled with ore.

[0017] Compared with the prior art, the beneficial effect of the present invention is that the method for quickly adjusting the length of the wire rope of the blast furnace charging car adjusts the position of tightening the wire rope from the blast furnace charging car to the wire drum far away from the blast furnace, thereby away from the ore dust environment and avoiding rust, thereby greatly reducing the time for adjusting the wire rope of the charging car from an average of 3 hours to 40 minutes, thereby minimizing the impact on blast furnace output and furnace conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic structural diagram of a device for quickly adjusting the length of a steel wire rope of a blast furnace charging car according to the present invention;

[0019] Figure 2 The invention provides a quick adjustment device for the length of the steel wire rope of the blast furnace charging car Figure 1 A in the middle is an enlarged structural diagram;

[0020] Figure 3 The invention provides a quick adjustment device for the length of the steel wire rope of the blast furnace charging car Figure 1 Enlarged structural diagram at point B in the middle.

[0021] Numbers in the figure: 1. Blast furnace charging car; 2. Charging wire rope; 3. Redirection pulley; 4. Charging car adjusting connecting rod; 5. Charging inclined bridge; 6. Wire drum; 7. Rope head wedge sleeve; 8. Rope head wedge block; 9. Wedge block locking bolt; 10. Wire rope head. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] See also Figure 1-3 , the present invention provides a technical solution: Example

[0024] A device for quickly adjusting the length of the wire rope of a blast furnace charging car includes a blast furnace charging car 1, a charging wire rope 2 and a wire drum 6. The blast furnace charging car 1 is placed on a charging inclined bridge 5. The charging wire rope 2 is fixedly connected to the blast furnace charging car 1. The charging wire rope 2 passes through two sets of redirecting rope pulleys 3 and is connected to the wire drum 6.

[0025] A device for quickly adjusting the length of the wire rope of a blast furnace charging car is provided. A charging car adjusting connecting rod 4 is provided between the charging wire rope 2 and the blast furnace charging car 1. The charging car adjusting connecting rod 4 has several mounting holes, and the spacing between the mounting holes is 200 mm. Selecting different mounting holes to connect with the charging car can achieve the effect of tightening the wire rope.

[0026] A device for quickly adjusting the length of the wire rope of a blast furnace charging car, wherein the wire rope head 10 at the end of the charging wire rope 2 is connected to the wire drum 6 through a rope head wedge sleeve 7, a rope head wedge block 8 is wedged into the rope head wedge sleeve 7, and one end of the rope head wedge block 8 is fixedly connected to a wedge block locking bolt 9.

[0027] A method for quickly adjusting the length of a steel wire rope of a blast furnace charging car, characterized by comprising the following steps:

[0028] (1) Adjustment and preparation: First, rotate the wire drum 6 and release the charging wire rope 2, so that the blast furnace charge car 1 descends along the charging inclined bridge 5 to the material receiving position at the bottom of the charging inclined bridge 5, and then lock the blast furnace charge car 1 on the charging inclined bridge 5;

[0029] (2) Disassembling the wire rope: First, turn the wire drum 6 to loosen the feeding wire rope 2, then loosen the wedge block locking bolt 9 on the rope end wedge block 8, and then knock the rope end wedge block 8 out of the rope end wedge sleeve 7 by mechanical equipment or manual hammering;

[0030] (3) Tightening the wire rope: After the wire rope head 10 is released from the rope head wedge block 8, the feeding wire rope 2 can be tightened by mechanical equipment or manual means;

[0031] (4) Wedging the wire rope: Pass the tensioned feeding wire rope 2 through the rope end wedging sleeve 7, and drive the rope end wedging block 8 into the rope end wedging sleeve 7 by mechanical equipment or manual hammering, lock the wire rope end 10, and then screw the wedging block locking bolt 9 into the rope end wedging block 8, lock the rope end wedging sleeve 7 and the rope end wedging block 8 together, and then cut off the excess wire rope end 10;

[0032] (5) Position inspection: Unlock the blast furnace charge car 1 from the material receiving position on the loading inclined bridge 5, then tighten the loading wire rope 2 through the wire drum 6, pull the blast furnace charge car 1 to the unloading position at the top of the loading inclined bridge 5, and check whether the top position of the blast furnace charge car 1 is accurate.

[0033] A method for quickly adjusting the length of a steel wire rope of a blast furnace charging car. In step 1, the blast furnace charging car 1 should be emptied in advance before being locked, and the locking position of the blast furnace charging car 1 on the charging inclined bridge 5 is a precise material receiving position.

[0034] A method for quickly adjusting the length of a steel wire rope of a blast furnace charging car. When rotating the steel wire drum 6 in step 2, the charging steel wire rope 2 should be completely loosened to untie the winding of the charging steel wire rope 2 on the steel wire drum 6.

[0035] A method for quickly adjusting the length of a steel wire rope of a blast furnace charging car. When winding the charging steel wire rope 2 in step 3, the charging steel wire rope 2 should be completely tightened, and the tightening force should be close to the pulling force of the blast furnace charging car 1 filled with ore. Example

[0036] A device for quickly adjusting the length of the wire rope of a blast furnace charging car comprises a blast furnace charging car 1, a charging wire rope 2 and a wire drum 6. The blast furnace charging car 1 is placed on a charging inclined bridge 5. The charging wire rope 2 is fixedly connected to the blast furnace charging car 1. The charging wire rope 2 passes around two sets of redirecting rope pulleys 3 and is connected to the wire drum 6. The redirecting rope pulley 3 passes around a set of height adjustment pulleys through the wire rope. The other end of the wire rope is connected to a winding device similar to the wire drum 6 through a rope head wedge sleeve 7, and the winding device is also arranged away from the blast furnace charging car 1.

[0037] A device for quickly adjusting the length of the wire rope of a blast furnace charging car is provided. A charging car adjusting connecting rod 4 is provided between the charging wire rope 2 and the blast furnace charging car 1. The charging car adjusting connecting rod 4 has several mounting holes, and the spacing between the mounting holes is 200 mm. Selecting different mounting holes to connect with the charging car can achieve the effect of tightening the wire rope.

[0038] A device for quickly adjusting the length of the wire rope of a blast furnace charging car, wherein the wire rope head 10 at the end of the charging wire rope 2 is connected to the wire drum 6 through a rope head wedge sleeve 7, a rope head wedge block 8 is wedged into the rope head wedge sleeve 7, and one end of the rope head wedge block 8 is fixedly connected to a wedge block locking bolt 9.

[0039] A method for quickly adjusting the length of a steel wire rope of a blast furnace charging car, characterized by comprising the following steps:

[0040] (1) Adjustment and preparation: First, rotate the wire drum 6 and release the charging wire rope 2, so that the blast furnace charge car 1 descends along the charging inclined bridge 5 to the material receiving position at the bottom of the charging inclined bridge 5, and then lock the blast furnace charge car 1 on the charging inclined bridge 5;

[0041] (2) Disassembling the wire rope: First, turn the winding device to tighten one of the redirecting rope wheels 3 upwards, then loosen the wedge block locking bolts 9 on the rope end wedge block 8, and then knock the rope end wedge block 8 out of the rope end wedge sleeve 7 by mechanical equipment or manual hammering;

[0042] (3) Tightening the wire rope: After the wire rope head 10 is released from the rope head wedge block 8, the feeding wire rope 2 can be tightened by mechanical equipment or manual means;

[0043] (4) Wedging the wire rope: Pass the tensioned feeding wire rope 2 through the rope end wedging sleeve 7, and drive the rope end wedging block 8 into the rope end wedging sleeve 7 by mechanical equipment or manual hammering, lock the wire rope end 10, and then screw the wedging block locking bolt 9 into the rope end wedging block 8, lock the rope end wedging sleeve 7 and the rope end wedging block 8 together, and then cut off the excess wire rope end 10;

[0044] (5) Position inspection: Unlock the blast furnace charge car 1 from the material receiving position on the loading inclined bridge 5, then tighten the loading wire rope 2 through the wire drum 6, pull the blast furnace charge car 1 to the unloading position at the top of the loading inclined bridge 5, and check whether the top position of the blast furnace charge car 1 is accurate.

[0045] A method for quickly adjusting the length of a steel wire rope of a blast furnace charging car. In step 1, the blast furnace charging car 1 should be emptied in advance before being locked, and the locking position of the blast furnace charging car 1 on the charging inclined bridge 5 is a precise material receiving position.

[0046] A method for quickly adjusting the length of a steel wire rope of a blast furnace charging car. When rotating the steel wire drum 6 in step 2, the charging steel wire rope 2 should be completely loosened to untie the winding of the charging steel wire rope 2 on the steel wire drum 6.

[0047] A method for quickly adjusting the length of a steel wire rope of a blast furnace charging car. When winding the charging steel wire rope 2 in step 3, the charging steel wire rope 2 should be completely tightened, and the tightening force should be close to the pulling force of the blast furnace charging car 1 filled with ore.

[0048] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A method for quickly adjusting the length of a steel wire rope of a blast furnace charging car, characterized in that: The invention is implemented by using a quick adjustment device for the length of the steel wire rope of a blast furnace charging car, wherein the quick adjustment device comprises a blast furnace charging car (1), a charging steel wire rope (2) and a steel wire drum (6), and is characterized in that: the blast furnace charging car (1) is placed on a charging inclined bridge (5), the blast furnace charging car (1) is fixedly connected with a charging steel wire rope (2), and the charging steel wire rope (2) is connected to the steel wire drum (6) by passing through two sets of redirecting rope pulleys (3); The wire rope head (10) at the end of the feeding wire rope (2) is connected to the wire drum (6) via a rope head wedge sleeve (7), a rope head wedge block (8) is wedged into the rope head wedge sleeve (7), and one end of the rope head wedge block (8) is fixedly connected to a wedge block locking bolt (9); The rapid adjustment method comprises the following steps: (1) Adjustment and preparation: first, rotate the wire drum (6) to release the charging wire rope (2), so that the blast furnace charge car (1) descends along the charging inclined bridge (5) to the material receiving position at the bottom of the charging inclined bridge (5), and then lock the blast furnace charge car (1) on the charging inclined bridge (5); (2) Disassembling the wire rope: first, rotate the wire drum (6) to loosen the feeding wire rope (2), then loosen the wedge block locking bolt (9) on the rope end wedge block (8), and then knock the rope end wedge block (8) out of the rope end wedge sleeve (7) by mechanical equipment or manual hammering; (3) Tightening the wire rope: After the wire rope head (10) is released from the rope head wedge (8), the feeding wire rope (2) is tightened by mechanical equipment or manual means; (4) Wedging the wire rope: Pass the tensioned feeding wire rope (2) through the rope end wedging sleeve (7), and drive the rope end wedging block (8) into the rope end wedging sleeve (7) by mechanical equipment or manual hammering, lock the wire rope end (10), and then screw the wedging block locking bolt (9) into the rope end wedging block (8), lock the rope end wedging sleeve (7) and the rope end wedging block (8) together, and then cut off the excess wire rope end (10); (5) Position inspection: Unlock the blast furnace charge car (1) from the receiving position on the charging inclined bridge (5), then tighten the charging wire rope (2) through the wire drum (6), and pull the blast furnace charge car (1) to the unloading position on the top of the charging inclined bridge (5), and check whether the top position of the blast furnace charge car (1) is accurate.

2. The method for quickly adjusting the length of the steel wire rope of a blast furnace charging car according to claim 1, characterized in that: A trolley adjusting connecting rod (4) is provided between the feeding steel wire rope (2) and the blast furnace trolley (1). The trolley adjusting connecting rod (4) has a plurality of mounting holes, and the spacing between the mounting holes is 200 mm. Selecting different mounting holes to connect with the trolley can achieve the effect of tightening the steel wire rope.

3. The method for quickly adjusting the length of the steel wire rope of a blast furnace charging car according to claim 1, characterized in that: In the step (1), the blast furnace charge car (1) should be emptied in advance before being locked, and the locking position of the blast furnace charge car (1) on the charging inclined bridge (5) is a precise material receiving position.

4. The method for quickly adjusting the length of the steel wire rope of a blast furnace charging car according to claim 1, characterized in that: When the wire drum (6) is rotated in the step (2), the feeding wire rope (2) should be completely loosened so that the feeding wire rope (2) is unwound on the wire drum (6).

5. The method for quickly adjusting the length of the steel wire rope of a blast furnace charging car according to claim 1, characterized in that: When winding the charging wire rope (2) in the step (3), the charging wire rope (2) should be completely tightened, and the tightening force should be close to the pulling force of the blast furnace charging car (1) filled with ore.

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