Safety guarantee method for unmanned regional maintenance of coke oven locomotive

Abstract

The invention discloses a safety guarantee method for unmanned regional maintenance of a coke oven locomotive. The method comprises the following steps: firstly, mounting mechanical limit switches on a front frame and a rear frame of the coke oven locomotive through limit brackets respectively; when the coke oven needs to be overhauled or other operations are needed in the same rail area, an overhauling operator installs a rail clamping stopper on a locomotive rail which is in the moving direction of the locomotive and is at a distance of more than or equal to 20m from an operation point, and then begins to operate; in the operation process, when the coke oven locomotive moves towards an operation area and the mechanical limit switch is in contact with the rail clamping stopper, the walking motor is powered off, and the coke oven locomotive stops; and after the operation is completed, the rail clamping stopper is detached, the red and white ropes are retracted, and the operator is contacted to recover passage control. According to the method, in the unmanned operation process of the coke oven locomotive, the safety of operators and equipment in the same track area can be guaranteed; and the risk that operating personnel and equipment are mechanically injured by a moving coke oven locomotive is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of coal coking equipment, and in particular relates to a safety guarantee method for unmanned area maintenance of a coke oven locomotive. Background Art

[0002] In the current highly competitive industrial production environment, improving production efficiency and reducing operating costs have become key strategies for enterprises to enhance their competitiveness. The traditional coking industry cannot achieve clean production, efficient production and stable production without the unmanned and intelligent coke oven locomotives. Improving the automation level of coke oven locomotives can effectively reduce the workload of operators and inject new vitality into the long-term development of enterprises.

[0003] At present, the production of coke ovens requires the assistance of multiple locomotives. There are multiple locomotives running on the coke oven site, which creates a harsh environment and many interferences. In unmanned and intelligent modes, multiple locomotives run on the same track, which brings new challenges to the safe operation of the equipment. Especially when the coke oven needs to undergo hot repairs or other online maintenance operations, it is difficult to achieve the essential safety guarantee for the personnel and equipment involved in the maintenance project by relying solely on the radar monitoring system. The radar system has certain limitations and cannot fully and accurately identify and respond to various complex and changing on-site situations, which undoubtedly increases potential safety risks.

[0004] In order to ensure that in the unmanned and intelligent production process, we can fully utilize the advantages of automated equipment and effectively protect the safety of personnel and equipment, we urgently need to further improve the safety assurance system, so as to effectively solve the current safety problems and lay a solid foundation for the company's safe production and sustainable development. Summary of the invention

[0005] The purpose of the present invention is to provide a safety guarantee method for the unmanned area maintenance of a coke oven locomotive, which can ensure the safety of operators and equipment in the same track area during the unmanned operation of the coke oven locomotive; and reduce the risk of mechanical injury to operators and equipment by the moving coke oven locomotive.

[0006] The object of the present invention is achieved by the following technical scheme: A method for ensuring safety of unmanned area maintenance of a coke oven locomotive, characterized in that it comprises the following steps: S1: Mechanical limit switches are installed on the front and rear frames of the coke oven locomotive through limit brackets; when the crank of the mechanical limit switch is touched, the coke oven locomotive running motor will be powered off and the locomotive will stop running; S2: When the coke oven needs to be repaired or other operations are required in the same track area, the maintenance personnel install the rail clamp blocker on the locomotive track in the locomotive moving direction and at a distance of ≥20m from the operation point, and then start the operation; during the operation, if the coke oven locomotive moves toward the operation area and moves to the point where the crank of the mechanical limit switch touches the rail clamp blocker, the mechanical limit switch will disconnect the control circuit of the locomotive running motor and stop the locomotive; S3: After the operation is completed, remove the rail clamp blocker and leave the operation area.

[0007] Furthermore, the rail clamp blocker includes a blocking block, a clamping plate and a bolt assembly. The blocking block is placed on the locomotive track. Clamping plates are respectively arranged on both sides of the locomotive track. The clamping plates on both sides are fastened to the blocking block by the bolt assembly.

[0008] Furthermore, in step S2, after the rail clamp blocker is installed, red and white ropes are pulled up in the working area to enclose it, and then the work is started; when the work is completed, the red and white ropes are put away first, and then the rail clamp blocker is removed.

[0009] Furthermore, the mechanical limit switch is mounted on a limit bracket so that the crank of the mechanical limit switch forms an angle of 90° with the track.

[0010] Furthermore, a mechanical limit switch is arranged at the positions corresponding to the positions of the front and rear frames of the coke oven locomotive and the two rails, and a rail clamping blocker is installed on the two rails in the forward direction of the coke oven locomotive during operation.

[0011] Furthermore, the height of the rail clamp blocker after installation is greater than the height of the front and rear frames of the coke oven locomotive.

[0012] The beneficial effects of the present invention are as follows: by adopting the scheme of the present invention, a limit bracket with a mechanical limit switch is installed on the vehicle frame in front of the coke oven locomotive wheel. When the coke oven needs to be repaired or other operations are required in the same track area, a rail clamp blocker is installed 20m away from the operation point. When the vehicle travels to the position of the rail clamp blocker, the mechanical limit switch hits the rail clamp blocker, the locomotive running motor is powered off, and the vehicle stops. The safety of the operating personnel and equipment in the same track area is guaranteed, and the risk of mechanical damage to the operating personnel and equipment by the moving coke oven locomotive is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention is further described using the accompanying drawings, but the embodiments in the accompanying drawings do not constitute any limitation to the present invention. A person skilled in the art can obtain other drawings based on the following drawings without creative work.

[0014] Figure 1 It is a schematic diagram of the installation of the mechanical limit switch and the rail clamping blocker of the present invention.

[0015] Figure 2 It is a top view schematic diagram of the mechanical limit switch and the rail clamp blocker after installation of the present invention.

[0016] Figure 3 It is a schematic diagram of the rail clamp blocker of the present invention installed on the rail. DETAILED DESCRIPTION

[0017] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0018] The invention discloses a safety guarantee method for unmanned area maintenance of a coke oven locomotive. Through the cooperation of a mechanical limit switch installed on the locomotive frame and a rail clamp blocker, when the crank of the mechanical limit switch touches the rail clamp blocker, the mechanical limit switch is disconnected, and the locomotive travel motor can be powered off to stop the locomotive. In this way, when the coke oven needs to be repaired or other operations are required in the same track area, the risk of mechanical damage to operators and equipment in the area by the moving coke oven locomotive can be reduced.

[0019] The specific implementation is through the following schemes: Figure 1 , 2 As shown, the limit brackets 2 are fixedly installed on the front frame 1 and the rear frame of the coke oven locomotive, and the mechanical limit switch is installed on the limit bracket 2, and the crank 3 of the mechanical limit switch is placed across the track. Mechanical limit switches are installed on the front frame 1 and the rear frame of the locomotive through the limit bracket 2, which can meet the protection when the locomotive moves in the front and rear directions. The rail clamp blocker 4 is used to be installed on the track 5, and its height is greater than the height of the crank 3 of the mechanical limit switch. When the locomotive travels to this place, the crank 3 of the mechanical limit switch will touch the rail clamp blocker 4, thereby disconnecting the control circuit of the locomotive travel motor and stopping the locomotive. Preferably, the crank 3 of the mechanical limit switch after installation is at a 90° angle with the track to ensure that when it touches.

[0020] During the actual maintenance work, a rail clamp blocker 4 is installed on the locomotive track in the locomotive moving direction and 20m away from the work point; that is, the rail clamp blocker 4 is located between the locomotive and the work point. In addition, for better protection, red and white ropes can be pulled in the work area to fence off and serve as a warning to other personnel; after completion, the work begins. During the operation, when the coke oven locomotive moves to the work point, the rail clamp blocker 4 can play an interception role and cooperate with the mechanical limit switch to stop the locomotive.

[0021] After the operation is completed, first put away the red and white ropes, then remove the track blocker, leave the work area, and complete this maintenance.

[0022] Specifically, Figure 3 As shown, the rail clamp blocker 4 comprises a blocking block 41, a clamping plate 42 and a bolt assembly 43. The blocking block 41 is placed on the locomotive track 5. Clamping plates 42 are respectively arranged on both sides of the locomotive track 5. The clamping plates 42 on both sides are fastened to the blocking block 41 by bolt assemblies 43. After fastening, the clamping plates 42 on both sides clamp the track, so that the rail clamp blocker 4 is stably connected to the track 5.

[0023] Preferably, in order to better ensure safety during operation, a mechanical limit switch is arranged at the positions corresponding to the front frame and rear frame of the coke oven locomotive and the two rails, and a rail clamp blocker is installed on the two rails in the forward direction of the coke oven locomotive during operation, so that the locomotive can be stopped as long as one of the mechanical limit switches works. With this design, safety can still be ensured when one of the mechanical limit switches fails.

[0024] In addition, the height of the rail clamp blocker 4 after installation can be designed to be greater than the height of the front and rear frames of the coke oven locomotive. In this way, when the two mechanical limit switches corresponding to the two tracks fail, the collision between the locomotive front frame and the rail clamp blocker 4 will cause a sound to alert the operator. At the same time, it can also prevent the locomotive wheels from directly climbing over the rail clamp blocker 4 and causing derailment.

[0025] In summary, although the present invention lists the above-mentioned preferred embodiments, it should be noted that although technicians in this field can make various changes and modifications, unless such changes and modifications deviate from the scope of the present invention, they should be included in the protection scope of the present invention.

Claims

1. A method for ensuring safety of unmanned area maintenance of a coke oven locomotive, characterized in that: The steps include: S1: Mechanical limit switches are installed on the front and rear frames of the coke oven locomotive through limit brackets; when the crank of the mechanical limit switch is touched, the coke oven locomotive running motor will be powered off and the locomotive will stop running; S2: When the coke oven needs to be repaired or other operations are required in the same track area, the maintenance personnel install the rail clamp blocker on the locomotive track in the locomotive moving direction and at a distance of ≥20m from the operation point, and then start the operation; during the operation, if the coke oven locomotive moves toward the operation area and moves to the point where the crank of the mechanical limit switch touches the rail clamp blocker, the mechanical limit switch will disconnect the control circuit of the locomotive running motor and stop the locomotive; S3: After the operation is completed, remove the rail clamp blocker and leave the operation area.

2. The method for ensuring safety of unmanned area maintenance of coke oven locomotive according to claim 1 is characterized in that: The rail clamp blocker comprises a blocking block, a clamping plate and a bolt assembly. The blocking block is placed on the locomotive track. Clamping plates are respectively arranged on both sides of the locomotive track. The clamping plates on both sides are fastened to the blocking block by the bolt assembly.

3. The method for ensuring safety of unmanned area maintenance of coke oven locomotive according to claim 1 is characterized in that: In step S2, after the rail clamp blocker is installed, red and white ropes are pulled up in the working area to fence it off, and then the work is started; when the work is completed, the red and white ropes are put away first, and then the rail clamp blocker is removed.

4. The method for ensuring safety of unmanned area maintenance of coke oven locomotive according to claim 1 is characterized in that: The mechanical limit switch is installed on the limit bracket and the crank of the mechanical limit switch forms an angle of 90° with the track.

5. The method for ensuring safety of unmanned area maintenance of a coke oven locomotive according to any one of claims 1 to 4, characterized in that: A mechanical limit switch is arranged at the positions corresponding to the front and rear frames of the coke oven locomotive and the two rails, and a rail clamping blocker is installed on the two rails in the forward direction of the coke oven locomotive during operation.

6. The method for ensuring safety of unmanned area maintenance of coke oven locomotive according to claim 5 is characterized in that: The height of the rail clamp blocker after installation is greater than the height of the front and rear frames of the coke oven locomotive.

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