CN115466817A

CN115466817A - Supporting and transporting device for converter oxygen lance and method for entering and exiting converter oxygen lance

Info

Publication number: CN115466817A
Application number: CN202110648748.2A
Authority: CN
Inventors: 陈为斌; 张晓东; 王兴华; 黄国华; 徐亚平
Original assignee: MCC Baosteel Technology Services Co Ltd
Current assignee: MCC Baosteel Technology Services Co Ltd
Priority date: 2021-06-10
Filing date: 2021-06-10
Publication date: 2022-12-13

Abstract

The invention provides a consigning device and a method for entering and leaving a converter oxygen lance, wherein the entering method comprises the following steps: s11, using first hoisting equipment to vertically hoist the oxygen lance away from a standby position, and vertically lowering the oxygen lance onto a bearing table top of an oxygen lance carrying device; s12, driving the converter oxygen lance supporting and transporting device to move forward, transversely moving a first hoisting device along the direction opposite to the supporting and transporting device, and gradually lowering the converter oxygen lance until the oxygen lance is lowered to be in a horizontal state; s13, using second hoisting equipment to hoist the head of the oxygen lance, and synchronously hoisting the oxygen lance horizontally by matching with first hoisting equipment to transport the oxygen lance away from a site; the invention eliminates the abrasion caused by the dragging of the oxygen lance head directly contacting the ground, plays a role in protecting the converter oxygen lance spare parts, uses the oxygen lance consignment device to be matched with the first hoisting equipment for hoisting, changes the oxygen lance movement from passive to active, and improves the labor efficiency; the problem of receive on-the-spot space restriction transportation work difficulty is solved.

Description

Supporting device and in-out-of-site method for converter oxygen lance

Technical Field

The invention relates to the field of converter oxygen lances, in particular to a supporting device and a field entering and exiting method of a converter oxygen lance.

Background

Converter oxygen lances are used in converter oxygen-blown smelting, which are subjected to the high temperatures of the molten steel from the converter and the violent agitation and splashing of the molten steel and slag causes strong mechanical vibration of the lances. Due to the severe working environment, after the oxygen lance is used for a period of time, the damaged lance body of the oxygen lance needs to be transported to a professional manufacturer for repair, and then the oxygen lance is transported back to the standby position of the oxygen lance. The net weight of the oxygen lance is about five tons, the length of the oxygen lance is twenty meters, and the diameter of the oxygen lance is dozens of centimeters; because the oxygen lance is long, the operation of transportation is difficult due to the restriction of site space.

Disclosure of Invention

In view of the above-mentioned disadvantages of the prior art, the present invention provides a supporting device for oxygen lance of converter with simple structure and a method for oxygen lance to enter and exit from the converter with convenient operation.

The invention provides a consigning device of a converter oxygen lance, which comprises a consigning trolley, wherein the consigning trolley comprises a consigning bearing platform, and a baffle is arranged on the consigning bearing platform.

The invention also provides a discharge method of the converter oxygen lance, and the converter oxygen lance consigning device comprises the following steps: s11, using first hoisting equipment to vertically hoist the oxygen lance away from a standby position, and vertically lowering the oxygen lance onto a carrying bearing platform of the carrying device; s12, driving the consignment trolley to move forward, transversely moving a first lifting device along the direction away from the consignment trolley, and gradually lowering the oxygen lance in the process until the oxygen lance is lowered to be in a horizontal state; and S13, using second hoisting equipment to hoist the head of the oxygen lance, and synchronously hoisting the oxygen lance horizontally by matching with the first hoisting equipment to transport the oxygen lance away from the site.

Further, when S11 is executed, the oxygen lance head is close to the baffle; and in the step S12, when the oxygen lance is gradually placed in a horizontal state from a vertical state, the oxygen lance head props against the baffle.

Further, when S13 is executed, after the oxygen lance is horizontally lifted, the oxygen lance carrying device is driven to move away, the platform truck is driven to the position below the oxygen lance, the second lifting device and the first lifting device are used for synchronously placing the oxygen lance on the platform truck, and the oxygen lance is carried away from the site.

Further, when the step S11 is executed, the oxygen lance is vertically lowered until the oxygen cavity lance head is stressed on the oxygen lance carrying device, and the oxygen lance is stopped to be lowered.

The invention also provides a method for entering the converter oxygen lance, which adopts the supporting and transporting device of the converter oxygen lance and comprises the following steps: s21, using a second hoisting device to hoist the head of the oxygen lance, hoisting the other end of the oxygen lance by a first hoisting device, synchronously hoisting the oxygen lance horizontally, placing the oxygen lance on the carrying device, and tightly pressing the head of the oxygen lance against the baffle; s22, driving the converter oxygen lance supporting and transporting device and the first transverse hoisting equipment to move oppositely in the horizontal direction, enabling the oxygen lance head to tightly abut against the baffle, and gradually pulling up the converter oxygen lance by using the first hoisting equipment until the oxygen lance is in a vertical state; s23, using a first lifting device to vertically lift the oxygen lance away from the carrying device, and moving the oxygen lance to a standby position.

As mentioned above, the carrying device and the entering and leaving method of the converter oxygen lance provided by the invention have the following beneficial effects:

in the invention, the abrasion caused by the fact that the oxygen lance head directly contacts the ground and is dragged is eliminated, the function of protecting the converter oxygen lance spare parts is achieved, and meanwhile, the potential safety hazard that the oxygen lance is placed on the ground and dragged, inclined and hung is eliminated; the oxygen lance supporting and transporting device is matched with first hoisting equipment for hoisting, so that the oxygen lance moves from passive to active, and the labor efficiency is improved; the problem of difficult transportation work limited by field space is solved.

Drawings

FIG. 1 is a schematic view of a supporting device for a converter oxygen lance according to the present invention.

FIG. 2 is a schematic view of the present invention with the lance being suspended vertically.

FIG. 3 is a schematic view of the present invention when the lance is lifted from a vertical position to a horizontal position.

FIG. 4 is a schematic view of the horizontal position of the oxygen lance of the present invention.

FIG. 5 is a schematic view of the present invention when the lance is hoisted by the first hoisting apparatus and the second hoisting apparatus.

FIG. 6 is a schematic view of the horizontal lifting of the lance from the handling apparatus by the first lifting apparatus and the second lifting apparatus of the present invention.

Description of the drawings:

100. a consignment trolley; 110. a consignment bearing platform; 120. a baffle plate; 130. a steering mechanism; 140. turning to an electric cabinet; 150. a frequency conversion box; 160. a remote controller; 200. a first hoisting device; 210. a second hoisting device; 300. an oxygen lance; 310. an oxygen lance head.

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.

It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions under which the present invention can be implemented, so that the present invention has no technical significance, and any structural modification, ratio relationship change, or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention. In addition, the terms such as "upper", "lower", "left", "right" and "middle" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and changes or modifications of the relative relationship may be made without substantial technical changes.

As shown in FIG. 1, an embodiment of the present invention relates to a supporting device for a converter oxygen lance, which comprises a supporting trolley 100, wherein the supporting trolley 100 comprises a supporting platform 110, and a baffle 120 is arranged on the supporting platform 110. The baffle 120 is provided to limit the position of the lance tip 310 when the lance tip is placed on the supporting platform 110 of the supporting cart 100, and to prevent the lance 300 from slipping off the supporting platform 110 and the lance 300 weighing several tons and easily causing safety risks in the process of lowering the lance 300 from a vertical state to a horizontal state or changing the lance 300 from the horizontal state to the vertical state. Preferably, the baffle 120 is an arc-shaped baffle 120, and is arranged according to the radian of the lance head, so that the oxygen lance head 310 is conveniently held and the oxygen lance head 310 is prevented from sliding; and is made of soft materials such as rubber, and the like, so that the abrasion caused by the fact that the head of the oxygen lance 300 directly contacts the ground and is dragged can be eliminated in the process of entering the converter oxygen lance 300, and the function of protecting spare parts of the converter oxygen lance is achieved. The vertical state of the oxygen lance 300 is that the oxygen lance 300 is vertical to the horizontal ground, and the horizontal state of the oxygen lance 300 is that the oxygen lance 300 is parallel to the horizontal ground.

Preferably, the consignment trolley 100 is electrically driven, remote control is adopted for forward movement, backward movement and steering, and electric drive is adopted for the rear wheels which are steering wheels; a rubber pad is laid on the consignment bearing platform 110 to protect the oxygen lance head 310; a group of steering wheels, namely a steering mechanism 130 is arranged to facilitate the adjustment of the moving direction of the consignment device, and a frequency conversion box 150 is arranged to control the speed of the consignment trolley 100; the forward and backward movement of the hauling trolley 100 can be synchronized with the first hoisting device 200 through the stepless speed change control of the remote controller 160 according to the lifting and lowering speed of the first hoisting device 200. Since the functions of the consignment device can be realized with the help of the prior art, the details are not repeated here. The first hoisting equipment 200, the second hoisting equipment 210 and the consignment trolley 100 are used for matching with the transporting oxygen lance 300 to enter and exit the field.

As shown in FIG. 2, FIG. 3, FIG. 4, FIG. 5 and FIG. 6, an embodiment of the method for tapping a converter oxygen lance according to the present invention comprises the following steps: s11, using a first hoisting device 200 to vertically hoist the oxygen lance 300 away from a standby position, and vertically lowering the oxygen lance 300 to the carrying bearing platform 110; s12, driving the consignment device to move forward, transversely moving the first lifting device 200 along the direction away from the consignment device, and gradually lowering the converter oxygen lance 300 until the oxygen lance 300 is lowered to be in a horizontal state; s13, using the second hoisting equipment 210 to hoist the oxygen lance head 310, synchronously hoisting the oxygen lance 300 horizontally by matching with the first hoisting equipment 200, and transporting the oxygen lance 300 away from the site. In this embodiment, the first hoisting device 200 is a travelling crane and the second hoisting device 210 is a truck crane. The method uses the oxygen lance 300 carrying device to be matched with a crane for lifting, so that the movement of the oxygen lance 300 is changed from passive to active, the position state of the oxygen lance 300 can be adjusted at both ends of the oxygen lance 300, and the labor efficiency is improved. Meanwhile, because the installation position of the oxygen lance 300 is more narrow, particularly the oxygen lance 300 is required to pass through an inlet and an outlet which are lower than the height of the oxygen lance 300 when entering and leaving the field, the oxygen lance 300 cannot be directly transported out in a vertical state, the vertical state of the oxygen lance 300 is smoothly converted into a horizontal state, and the problem that the transportation work is difficult due to the restriction of the field space is solved

As shown in FIGS. 2, 3 and 4, in this embodiment S11, the lance tip 310 is positioned adjacent to the shroud 120; in the step S12, when the oxygen lance 300 is gradually placed in a horizontal state from a vertical state, the oxygen lance head 310 abuts against the baffle 120, so that the oxygen lance 300 is prevented from slipping on the carrying bearing platform 110, and the oxygen lance head is protected.

As shown in FIG. 5, in the embodiment, in S13, after the oxygen lance 300 is lifted horizontally, the carrying device is driven to move away, the platform car is driven to move to the position below the oxygen lance 300, the second lifting device 210 and the first lifting device 200 are used for synchronously placing the oxygen lance 300 on the platform car, the oxygen lance 300 is transported away from the site, and the oxygen lance is smoothly transported away from the site by the platform car.

As shown in FIG. 2, in this embodiment, when the step S11 is executed, the oxygen lance 300 is vertically lowered until the oxygen chamber tip is forced by the oxygen lance 300 carrying device, and the lowering of the oxygen lance 300 is stopped, which is mainly to prevent the oxygen lance 300 from loosening and suddenly inclining and falling.

As shown in FIGS. 2 to 6, an embodiment of the method for entering a converter lance according to the present invention comprises the following steps: s21, using a second hoisting device 210 to hoist the oxygen lance head 310, using a first hoisting device 200 to hoist the other end of the oxygen lance 300, synchronously hoisting the oxygen lance 300 horizontally, placing the oxygen lance 300 on a carrying device of the converter oxygen lance 300, and enabling the oxygen lance 300 head to tightly abut against the baffle 120; s22, driving the supporting device of the converter oxygen lance 300 and the first transversely-moving hoisting equipment 200 to move oppositely in the horizontal direction, enabling the head of the oxygen lance 300 to tightly abut against the baffle 120, and gradually pulling up the converter oxygen lance 300 by using the first hoisting equipment 200 until the oxygen lance 300 is in a horizontal state; s23, using the first hoisting equipment 200 to vertically hoist the oxygen lance 300 away from the supporting device of the converter oxygen lance 300, and moving the oxygen lance 300 to a standby position. The method can also eliminate the abrasion caused by the fact that the oxygen lance head 310 directly contacts the ground and drags, plays a role in protecting the spare parts of the oxygen lance of the converter, and simultaneously eliminates the potential safety hazard that the oxygen lance 300 is placed on the ground, dragged, pulled and askew hung; the supporting and transporting device is matched with the first lifting device 200 for lifting, so that the movement of the oxygen lance 300 is changed from passive to active, and the labor efficiency is improved; the problem of difficult transportation work limited by field space is solved.

The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Those skilled in the art can modify or change the above-described embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims

1. A supporting and transporting device of a converter oxygen lance is characterized in that: the device comprises a consignment trolley (100), wherein the consignment trolley (100) comprises a consignment bearing platform (110), and a baffle (120) is arranged on the consignment bearing platform (110).

2. A method for discharging a converter oxygen lance, which is characterized in that the device for supporting and transporting the converter oxygen lance of claim 1 is adopted, and comprises the following steps: s11, vertically hoisting an oxygen lance (300) away from a standby position by using first hoisting equipment (200), and vertically lowering a lance head (310) of the oxygen lance onto a carrying bearing platform (110) of the carrying trolley (100); s12, driving the carrying trolley (100) to move forward, transversely moving a first lifting device (200) along a direction deviating from the carrying trolley (100), and gradually lowering the oxygen lance (300) in the process until the oxygen lance (300) is lowered to be in a horizontal state; s13, using a second lifting device (210) to lift the oxygen lance head (310), synchronously lifting the oxygen lance (300) horizontally by matching with the first lifting device (200), and transporting the oxygen lance (300) away from the site.

3. The method as claimed in claim 2, wherein the lance tip (310) is adjacent to the baffle (120) during S11; when S12 is executed, the oxygen lance head (310)) is pressed against the baffle plate (120) when the oxygen lance (300) is gradually placed in a horizontal state from a vertical state.

4. The method as claimed in claim 2, wherein in the step of S13, the lifting device is driven to move away after the lance (300) is lifted horizontally, a platform car is driven to move below the lance (300), the second lifting device (210) and the first lifting device (200) are used for synchronously placing the lance (300) on the platform car, and the platform car is driven to transport the lance (300) away from the site.

5. The method as claimed in claim 2, wherein the step S11 is performed by lowering the lance (300) vertically until the lance tip (310) is forced by the supporting device, and stopping lowering the lance (300).

6. The approach method of the converter oxygen lance is characterized in that the converter oxygen lance consigning device of claim 1 comprises the following steps: s21, using a second lifting device (210) to lift the oxygen lance head (310), using a first lifting device (200) to lift the other end of the oxygen lance (300), synchronously lifting the oxygen lance (300) horizontally, placing the oxygen lance (300) on the carrying device, and tightly pressing the oxygen lance head (310) against the baffle (120); s22, driving the supporting and transporting device of the converter oxygen lance (300) and the first transversely-moving hoisting equipment (200) to move oppositely in the horizontal direction, enabling an oxygen lance head (310) to tightly abut against the baffle (120), and gradually pulling up the converter oxygen lance (300) by using the first hoisting equipment (200) until the oxygen lance (300) is in a vertical state; s23, using a first lifting device (200) to lift the oxygen lance (300) from the carrying device vertically, and moving the oxygen lance (300) to a standby position.