Control method of coke oven door service vehicle

Abstract

An embodiment of the present application provides a method for controlling a coke oven door service vehicle, the method comprising: upon triggering a state switching signal for the coke oven door service vehicle, switching the coke oven door service vehicle from a normal working state to an emergency running state; obtaining an emergency control signal for the coke oven door service vehicle, and controlling the operation of the coke oven door service vehicle according to the emergency control signal; wherein the operating speed of the coke oven door service vehicle is reduced by a predetermined ratio when in the emergency running state. The method of the present application can timely switch the state of the coke oven door service vehicle and control the operation of the coke oven door service vehicle according to various signals, and can continue to control the coke oven door service vehicle even when a malfunction occurs in the coke oven door service vehicle, thereby enabling normal operation of coke oven production and avoiding smoke and dust pollution.

Description

Technical Field

[0001] The present application relates to the technical field of equipment control, and in particular to a control method for a coke oven door service vehicle. Background Art

[0002] Coke oven door service vehicles are primarily used in coke oven production to seal off the coke oven doors and prevent smoke and dust from overflowing from the coke oven doors. However, if a coke oven door service vehicle malfunctions, making it impossible for the operator to control the vehicle, it will seriously affect the normal operation of the coke ovens, cause smoke and dust pollution, and harm the environment.

[0003] Based on this, how to continue to control the coke oven door service vehicle when a failure occurs in the coke oven door service vehicle is a technical problem that needs to be solved urgently. Summary of the Invention

[0004] The embodiments of the present application provide a control method, device and system for a coke oven door service vehicle. The method in the present application can timely switch the state of the coke oven door service vehicle and control the operation of the coke oven door service vehicle according to various signals. Even when a failure occurs in the coke oven door service vehicle, the coke oven door service vehicle can continue to be controlled, so that the coke oven production can operate normally and smoke pollution can be avoided.

[0005] Other features and advantages of the present application will become apparent from the following detailed description, or may be learned in part by practice of the present application.

[0006] According to the first aspect of an embodiment of the present application, a control method for a coke oven door service vehicle is provided, which switches the coke oven door service vehicle from a normal working state to an emergency running state when a state switching signal for the coke oven door service vehicle is triggered; obtains an emergency control signal for the coke oven door service vehicle, and controls the operation of the coke oven door service vehicle according to the emergency control signal; wherein, when the coke oven door service vehicle is in the emergency running state, the running speed is reduced by a predetermined proportion.

[0007] In some embodiments of the present application, based on the aforementioned scheme, before triggering the status switching signal for the coke oven door service vehicle, the method also includes: obtaining the operating status of the coke oven door service vehicle; and triggering the status switching signal for the coke oven door service vehicle according to the operating status of the coke oven door service vehicle.

[0008] In some embodiments of the present application, based on the aforementioned scheme, triggering a status switching signal for the coke oven door service vehicle according to the operating status of the coke oven door service vehicle includes: if the coke oven door service vehicle is in an abnormal stop state, triggering a status switching signal for the coke oven door service vehicle.

[0009] In some embodiments of the present application, based on the aforementioned scheme, the coke oven door service vehicle includes a frequency converter, and switching the coke oven door service vehicle from a normal working state to an emergency running state includes: switching the coke oven door service vehicle from a normal working state to an emergency running state by switching the control contacts of the frequency converter.

[0010] In some embodiments of the present application, based on the aforementioned solution, the acquiring of the emergency control signal for the coke oven door service vehicle includes: directly receiving the emergency control signal for the coke oven door service vehicle through the frequency converter.

[0011] In some embodiments of the present application, based on the aforementioned scheme, the emergency control signal includes an emergency left signal and an emergency right signal, and controlling the operation of the coke oven door service vehicle according to the emergency control signal includes: controlling the coke oven door service vehicle to move to the left according to the emergency left signal; and controlling the coke oven door service vehicle to move to the right according to the emergency right signal.

[0012] In some embodiments of the present application, based on the aforementioned scheme, the emergency control signal includes an emergency retreat signal and an emergency advance signal, and controlling the operation of the coke oven door service vehicle according to the emergency control signal includes: controlling the coke oven door service vehicle to retreat according to the emergency retreat signal; and controlling the coke oven door service vehicle to advance according to the emergency advance signal.

[0013] In some embodiments of the present application, based on the aforementioned scheme, the emergency control signal includes an emergency acceleration signal and an emergency stop signal, and controlling the operation of the coke oven door service vehicle according to the emergency control signal includes: controlling the coke oven door service vehicle to accelerate according to the emergency acceleration signal; and controlling the coke oven door service vehicle to stop according to the emergency stop signal.

[0014] In some embodiments of the present application, based on the aforementioned solution, the method further includes: the predetermined proportion is greater than or equal to 70%.

[0015] In some embodiments of the present application, based on the aforementioned solution, after the coke oven door service vehicle is switched from a normal working state to an emergency running state, the method further includes: controlling the coke oven door service vehicle to send an alarm signal.

[0016] According to the second aspect of an embodiment of the present application, a control device for a coke oven door service vehicle is provided, the device comprising: a switching unit, used to switch the coke oven door service vehicle from a normal working state to an emergency running state when a state switching signal for the coke oven door service vehicle is triggered; a control unit, used to obtain an emergency control signal for the coke oven door service vehicle, and control the operation of the coke oven door service vehicle according to the emergency control signal; wherein, the operating speed of the coke oven door service vehicle is reduced by a predetermined proportion when it is in the emergency running state.

[0017] According to the third aspect of the embodiment of the present application, a control system of a coke oven door service vehicle is provided, and the control system of the coke oven door service vehicle includes: a car operating console, the car operating console is used to trigger the normal control signal for the coke oven door service vehicle; a tow cable, the tow cable is used to connect the car operating console and the PLC; the PLC is used to obtain the normal control signal for the coke oven door service vehicle and send out the corresponding execution signal; the emergency operation box is used to trigger the status switching signal and the emergency control signal for the coke oven door service vehicle; the frequency converter is used to receive various signals for the coke oven door service vehicle and control the operation of the coke oven door service vehicle according to the various signals; the traveling motor is used to realize the operation of the coke oven door service vehicle.

[0018] In the technical solutions provided in some embodiments of the present application, when a coke oven door service vehicle fails, the coke oven door service vehicle can be switched from a normal working state to an emergency running state, and the operation of the coke oven door service vehicle can continue to be controlled according to the emergency control signal to complete the subsequent coke oven production process, so that the coke oven production can proceed smoothly and avoid smoke pollution and production accidents.

[0019] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are incorporated into and constitute a part of the specification, illustrating embodiments consistent with the present application and, together with the specification, explaining the principles of the present application. Obviously, the drawings described below are only some embodiments of the present application, and those skilled in the art can derive other drawings based on these drawings without inventive effort. In the drawings:

[0021] Figure 1 A flow chart showing a method for controlling a coke oven door service vehicle according to one embodiment of the present application is shown;

[0022] Figure 2A block diagram showing a control device of a coke oven door service vehicle according to one embodiment of the present application is shown;

[0023] Figure 3 A schematic diagram of a control system of a coke oven door service vehicle according to an embodiment of the present application is shown. DETAILED DESCRIPTION

[0024] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this application will be thorough and complete and will fully convey the concepts of the example embodiments to those skilled in the art.

[0025] In addition, described feature, structure or characteristic can be combined in one or more embodiments in any suitable manner.In the following description, many specific details are provided so as to provide a full understanding of the embodiments of the present application. However, it will be appreciated by those skilled in the art that the technical scheme of the present application can be put into practice without one or more of the specific details, or other methods, components, devices, steps etc. can be adopted. In other cases, known methods, devices, implementations or operations are not shown or described in detail to avoid blurring the various aspects of the application.

[0026] The block diagrams shown in the accompanying drawings are merely functional entities and do not necessarily correspond to physically separate entities. That is, these functional entities may be implemented in software, in one or more hardware modules or integrated circuits, or in different networks and / or processor devices and / or microcontroller devices.

[0027] The flowcharts shown in the accompanying drawings are for illustrative purposes only and do not necessarily include all contents and operations / steps, nor must they be executed in the order described. For example, some operations / steps may be decomposed, while others may be combined or partially combined. Therefore, the actual execution order may vary depending on the actual situation.

[0028] It should be noted that the control method of this application is primarily applied to the coke oven door service vehicle. This vehicle is the fifth locomotive system in addition to the four major locomotive systems for the 7.63-meter coke oven. It is primarily used to seal the coke oven door and the coke oven door, and is crucial for preventing smoke and dust from escaping from the coke oven door.

[0029] The following is a detailed description of the implementation details of the technical solution of the embodiment of the present application:

[0030] Figure 1A flowchart of a method for controlling a coke oven door service vehicle according to one embodiment of the present application is shown. The method for controlling a coke oven door service vehicle can be executed by a device having a computing and processing function. The method includes at least steps 101 and 102, which are described in detail as follows:

[0031] Reference Figure 1 In step 101, when a state switching signal for the coke oven door service vehicle is triggered, the coke oven door service vehicle is switched from a normal working state to an emergency running state.

[0032] In the present application, before triggering the state switching signal for the coke oven door service vehicle, the method may further include: obtaining the operating state of the coke oven door service vehicle; and triggering the state switching signal for the coke oven door service vehicle based on the operating state of the coke oven door service vehicle. Triggering the state switching signal for the coke oven door service vehicle based on the operating state of the coke oven door service vehicle may include: triggering the state switching signal for the coke oven door service vehicle if the coke oven door service vehicle is in an abnormally stopped state.

[0033] Furthermore, after the coke oven door service vehicle is switched from a normal operating state to an emergency travel state, the vehicle can be controlled to emit an alarm signal. The alarm signal can be an alarm bell or an alarm light. When the coke oven door service vehicle is in the emergency travel state, the alarm bell can be output continuously or intermittently to remind people around the vehicle to pay attention to safety and be careful of collisions.

[0034] The coke oven door service vehicle can further reduce its operating speed by a predetermined ratio when in the emergency travel state, and the predetermined ratio can be greater than or equal to 70%. When the predetermined ratio is 70%, the operating speed of the coke oven door service vehicle in the emergency travel state is 30% of the normal speed.

[0035] It should be noted that the optimal control effect is achieved when the predetermined ratio is 70%. When the operating speed of the coke oven door service vehicle in the emergency travel state is 30% of the normal speed, the coke oven door service vehicle can be operated more safely without affecting the normal operation of the coke oven production. It should also be noted that the states of the coke oven door service vehicle include but are not limited to the emergency travel state and the normal state.

[0036] In one embodiment of the present application, a frequency converter may be included in the coke oven door service vehicle, and switching the coke oven door service vehicle from a normal working state to an emergency running state may include: switching the coke oven door service vehicle from a normal working state to an emergency running state by switching the control contacts of the frequency converter.

[0037] Specifically, the coke oven door service vehicle may include an emergency operation box, in which the control circuits for each knob are directly connected to the DI contact point of the frequency converter. The emergency operation box may be provided with an emergency control system switching knob for triggering a status switching signal for the coke oven door service vehicle, switching the vehicle from normal operation to emergency travel. In other words, pressing the emergency control system switching knob triggers a status switching signal for the coke oven door service vehicle, switching the vehicle from normal operation to emergency travel. The emergency operation box may also be provided with various emergency control knobs for triggering emergency control signals for the coke oven door service vehicle.

[0038] Continue to refer to Figure 1 In step 102, an emergency control signal for the coke oven door service vehicle is obtained, and the operation of the coke oven door service vehicle is controlled according to the emergency control signal.

[0039] In the present application, the emergency control signal may include an emergency left signal and an emergency right signal, and controlling the operation of the coke oven door service vehicle according to the emergency control signal includes: controlling the coke oven door service vehicle to move to the left according to the emergency left signal; and controlling the coke oven door service vehicle to move to the right according to the emergency right signal.

[0040] The emergency control signal may include an emergency retreat signal and an emergency advance signal. Controlling the operation of the coke oven door service vehicle according to the emergency control signal includes: controlling the coke oven door service vehicle to retreat according to the emergency retreat signal; and controlling the coke oven door service vehicle to advance according to the emergency advance signal.

[0041] The emergency control signal may also include an emergency acceleration signal and an emergency stop signal. Controlling the operation of the coke oven door service vehicle according to the emergency control signal includes: controlling the coke oven door service vehicle to accelerate according to the emergency acceleration signal; and controlling the coke oven door service vehicle to stop according to the emergency stop signal.

[0042] In one embodiment of the present application, the acquiring of the emergency control signal for the coke oven door service vehicle may include: directly receiving the emergency control signal for the coke oven door service vehicle through the frequency converter.

[0043] Specifically, the coke oven door service vehicle may include an emergency operating box, in which the control circuits for each knob in the emergency operating box are directly connected to the DI contact point of the frequency converter. The emergency operating box may be provided with an emergency left travel button and an emergency right travel button to trigger an emergency left travel signal or an emergency right travel signal for the coke oven door service vehicle, thereby controlling the coke oven door service vehicle to move left or right. For example, pressing the emergency left travel button triggers the emergency left travel signal for the coke oven door service vehicle, thereby controlling the coke oven door service vehicle to move left. For another example, pressing the emergency right travel button triggers the emergency right travel signal for the coke oven door service vehicle, thereby controlling the coke oven door service vehicle to move right.

[0044] An emergency reverse button, an emergency forward button, an emergency acceleration button and an emergency stop button may also be provided in the emergency operation box to trigger an emergency reverse signal, an emergency forward signal, an emergency acceleration signal or an emergency stop signal for the coke oven door service vehicle to control the coke oven door service vehicle to reverse, forward, accelerate or stop.

[0045] It should be noted that, according to the status of the coke oven door service vehicle, different buttons can also be set to trigger other emergency control signals for the coke oven door service vehicle that are different from the above control purposes, to control the coke oven door service vehicle and thus meet the needs of coke oven production.

[0046] It should also be noted that in actual production, the inability to control the coke oven door service vehicle is mostly due to a fault in the wiring between the coke oven door service vehicle's car console, tow cable, and PLC. For example, a communication failure between the car console and tow cable, or a connection failure between the tow cable and PLC terminals, etc. In the technical solution of this application, the control circuits of each button in the emergency operation box are directly connected to the DI contact point of the inverter, and the internal parameters of the inverter are modified to control the coke oven door service vehicle. This can effectively avoid the fault point, temporarily postpone fault processing, prioritize the normal operation of coke oven production, and ensure smooth coke oven production.

[0047] In a practical scenario of the present application, a coke oven door service vehicle is controlled by an operation command or an operation knob on a car operating console. However, if a communication failure occurs between the car operating console and the towing cable, or a connection failure occurs between the towing cable and the PLC terminal, the normal operation of the coke oven door service vehicle cannot be restored in a short time. In order not to affect the normal operation of the coke oven production, the technical solution of the present application can be used. First, the emergency control system switching knob in the emergency operation box of the coke oven door service vehicle can be pressed to switch the coke oven door service vehicle from normal operation to emergency travel mode. At the same time, the coke oven door service vehicle in the emergency travel mode runs at 30% of the normal speed and continuously outputs an alarm. Then, the emergency left travel button or the emergency right travel button can be pressed to control the coke oven door service vehicle to move left or right, and the coke oven door service vehicle can continue to be controlled to smoothly complete the subsequent coke oven production process. There is no need to wait until the cause of the fault is eliminated. After the coke oven door service vehicle resumes normal operation, the coke oven door service vehicle can be moved to continue the subsequent coke oven production process, which reduces waiting time, improves production efficiency, and ensures the normal operation of coke oven production.

[0048] The following describes an embodiment of the device of the present application, which can be used to implement the control method of the coke oven door service vehicle described in the above embodiment of the present application. For details not disclosed in the embodiment of the device of the present application, please refer to the embodiment of the control method of the coke oven door service vehicle described in the above embodiment of the present application.

[0049] Figure 2 A block diagram of a control device of a coke oven door service vehicle according to an embodiment of the present application is shown.

[0050] Reference Figure 2 As shown, a control device 200 of a coke oven door service vehicle according to an embodiment of the present application includes: a switching unit 201 and a control unit 202 .

[0051] Specifically, the switching unit 201 is used to switch the coke oven door service vehicle from a normal working state to an emergency running state when a state switching signal for the coke oven door service vehicle is triggered; the control unit 202 is used to obtain an emergency control signal for the coke oven door service vehicle and control the operation of the coke oven door service vehicle according to the emergency control signal; wherein, the operating speed of the coke oven door service vehicle is reduced by a predetermined proportion when it is in the emergency running state.

[0052] This application also proposes a control system for a coke oven door service vehicle. Figure 3 The control system of the coke oven door service vehicle will be described.

[0053] Figure 3A schematic diagram of a control system of a coke oven door service vehicle according to an embodiment of the present application is shown.

[0054] Reference Figure 3 As shown, the control system of the coke oven door service vehicle includes: a car operating console 301, a tow cable 302, a PLC 303, an emergency operation box 304, a frequency converter 305, and a travel motor 306. The car operating console 301 is used to trigger normal control signals for the coke oven door service vehicle; the tow cable 302 is used to connect the car operating console 301 and the PLC 303; the PLC 303 is used to obtain normal control signals for the coke oven door service vehicle and issue corresponding execution signals; the emergency operation box 304 is used to trigger state switching signals and emergency control signals for the coke oven door service vehicle; the frequency converter 305 is used to receive various signals for the coke oven door service vehicle and control the operation of the coke oven door service vehicle according to the various signals; and the travel motor 306 is used to realize the operation of the coke oven door service vehicle.

[0055] Specifically, when the coke oven door service vehicle is in a normal state, the staff can control the operation of the coke oven door service vehicle, such as running, lifting, etc., through the main operation command or operation knob of the car operating console 301.

[0056] However, when the coke oven door service vehicle breaks down, the emergency control system switching knob of the emergency operation box 304 can be used to switch the coke oven door service vehicle from the normal working state to the emergency running state.

[0057] Furthermore, the emergency left go button and the emergency right go button can be used to control the coke oven door service vehicle to move left or right; the emergency reverse button and the emergency forward button can be used to control the coke oven door service vehicle to move backward or forward; the emergency acceleration button and the emergency stop button can be used to control the coke oven door service vehicle to accelerate or stop.

[0058] Furthermore, inverter 305 can also output a travel alarm. This alarm can be activated when the coke oven door service vehicle is in an emergency travel state, alerting personnel around the vehicle to safety and collision avoidance. The vehicle's operating speed can be reduced by a predetermined 70% when in an emergency travel state, meaning that the vehicle's operating speed is 30% of its normal speed. This ensures safer operation without disrupting normal coke oven production.

[0059] The control system of the coke oven door service vehicle in one embodiment of the present application can safely and efficiently move the coke oven door service vehicle when the coke oven door service vehicle fails, thereby achieving the purpose of removing the coke oven door service vehicle from the oven area, greatly reducing the impact on coke oven production.

[0060] The flowcharts and block diagrams in the accompanying drawings illustrate the possible implementation architecture, functions and operations of the systems, methods and computer program products according to various embodiments of the present application. Among them, each box in the flowchart or block diagram can represent a module, program segment, or part of the code, and the above-mentioned module, program segment, or part of the code contains one or more executable instructions for implementing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the box can also occur in an order different from that marked in the accompanying drawings. For example, two boxes represented in succession can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram or flowchart, and the combination of boxes in the block diagram or flowchart, can be implemented with a dedicated hardware-based system that performs the specified function or operation, or can be implemented with a combination of dedicated hardware and computer instructions.

[0061] The units involved in the embodiments described in this application may be implemented by software or hardware, and the units described may also be set in a processor. In some cases, the names of these units do not constitute limitations on the units themselves.

[0062] It should be noted that, although several modules or units of the device for action execution are mentioned in the above detailed description, this division is not mandatory. In fact, according to the embodiment of the application, the features and functions of two or more modules or units described above can be concretized in one module or unit. On the contrary, the features and functions of one module or unit described above can be further divided into multiple modules or units to be concretized.

[0063] Those skilled in the art will readily conceive of other embodiments of the present application after considering the specification and practicing the embodiments disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present application that follow the general principles of this application and include common knowledge or customary techniques in the art that are not disclosed herein.

[0064] It should be understood that the present application is not limited to the exact structures described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present application is limited only by the appended claims.

Claims

1. A method for controlling a coke oven door service vehicle, characterized in that: The method is implemented using a control system of a coke oven door service vehicle, which includes a car operating console, a towing cable, a PLC, an emergency operation box, a frequency converter, and a travel motor. The car operating console is used to trigger normal control signals for the coke oven door service vehicle. The towing cable is used to connect the car operating console and the PLC. The PLC is used to obtain normal control signals for the coke oven door service vehicle and issue corresponding execution signals. The emergency operation box is used to trigger state switching signals and emergency control signals for the coke oven door service vehicle. The control circuits of the buttons in the emergency operation box are connected to the DI contact points of the frequency converter to modify the internal parameters of the frequency converter, thereby controlling the coke oven door service vehicle. The frequency converter is used to receive various signals for the coke oven door service vehicle and control the operation of the coke oven door service vehicle according to the various signals; The traveling motor is used to realize the operation of the coke oven door service vehicle; the method includes: When a state switching signal for the coke oven door service vehicle is triggered, the coke oven door service vehicle is switched from a normal working state to an emergency running state; Obtaining an emergency control signal for the coke oven door service vehicle, and controlling the operation of the coke oven door service vehicle according to the emergency control signal; Wherein, the running speed of the coke oven door service vehicle is reduced by a predetermined ratio when it is in the emergency running state.

2. The method according to claim 1, characterized in that Before triggering the state switching signal for the coke oven door service vehicle, the method further includes: Obtaining the operating status of the coke oven door service vehicle; A state switching signal for the coke oven door service vehicle is triggered according to the operating state of the coke oven door service vehicle.

3. The method according to claim 2, characterized in that The triggering of a state switching signal for the coke oven door service vehicle according to the operating state of the coke oven door service vehicle includes: If the coke oven door service vehicle is in an abnormal stopped state, a state switching signal for the coke oven door service vehicle is triggered.

4. The method according to claim 1, wherein The coke oven door service vehicle includes a frequency converter, and switching the coke oven door service vehicle from a normal working state to an emergency running state includes: By switching the control contacts of the frequency converter, the coke oven door service vehicle is switched from a normal working state to an emergency running state.

5. The method according to claim 4, characterized in that The obtaining of the emergency control signal for the coke oven door service vehicle includes: The emergency control signal for the coke oven door service vehicle is directly received through the frequency converter.

6. The method according to claim 1, characterized in that The emergency control signal includes an emergency left signal and an emergency right signal, and controlling the operation of the coke oven door service vehicle according to the emergency control signal includes: Controlling the coke oven door service vehicle to move left according to the emergency left signal; The coke oven door service vehicle is controlled to move right according to the emergency right signal.

7. The method according to claim 1, characterized in that The emergency control signal includes an emergency retreat signal and an emergency advance signal, and controlling the operation of the coke oven door service vehicle according to the emergency control signal includes: Controlling the coke oven door service vehicle to retreat according to the emergency retreat signal; The coke oven door service vehicle is controlled to move forward according to the emergency forward signal.

8. The method according to claim 1, characterized in that The emergency control signal includes an emergency acceleration signal and an emergency stop signal, and controlling the operation of the coke oven door service vehicle according to the emergency control signal includes: controlling the acceleration of the coke oven door service vehicle according to the emergency acceleration signal; The coke oven door service vehicle is controlled to stop according to the emergency stop signal.

9. The method according to claim 1, characterized in that The predetermined ratio is greater than or equal to 70%.

10. The method according to claim 1, characterized in that After switching the coke oven door service vehicle from a normal working state to an emergency running state, the method further includes: Control the coke oven door service vehicle to send out an alarm signal.

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