Coal transportation system architecture

Abstract

The present disclosure relates to a coal transportation system architecture, including: a multi-stage conveyor belt, a coal crushing device and a transfer device between any two stages of the conveyor belt; if the multi-stage conveyor belt receives the bell signal corresponding to the next-stage conveyor belt, the current-stage conveyor belt performs a bell-ringing action and sends a bell signal to the previous stage of the current stage; after the bell-ringing action lasts for a first preset duration, the current stage stops ringing and enters a standby state; if the current-stage conveyor belt enters the standby state, corresponding control actions are performed according to whether the start signal corresponding to the next-stage conveyor belt is received within a second preset duration; if the coal crushing device receives the bell signal corresponding to the next-stage conveyor belt, it enters the standby state; under the condition that the current-stage coal crushing device is in the standby state and receives the start signal corresponding to the next-stage conveyor belt, corresponding control actions are performed; the transfer device performs the start action of the current-stage transfer device when receiving the bell signal corresponding to the next-stage conveyor belt.

Description

Technical Field

[0001] The present disclosure relates to the field of control technology, and in particular, to a coal transportation system architecture. Background Art

[0002] At present, the coal loading of the coal conveying system of thermal power plants still basically maintains the traditional reverse coal flow starting method. Each belt must be started after a period of bell ringing before it can start to operate. It starts from the belt closest to the end of the coal flow, and starts one belt at a time until the belt at the starting point of coal loading starts to load coal. This operation mode leads to problems such as long waiting time for coal loading, long belt idling time, and high power consumption for coal transportation. Summary of the invention

[0003] The purpose of the present disclosure is to provide a coal transportation system architecture, which shortens the startup time while ensuring the original ringing time of the transport belt, while also ensuring the safety of the belt operation, shortening the idling time of the belt motor, and saving power consumption of the coal transportation system.

[0004] In order to achieve the above objectives, the present disclosure provides a coal transportation system architecture, which includes: a multi-stage transportation belt, a coal crushing device located between two stages of the transportation belt, and a transfer device.

[0005] The multi-stage conveyor belt is used to, when receiving a bell-ringing signal corresponding to the next-stage conveyor belt, perform a bell-ringing action on the conveyor belt of the current stage and send a bell-ringing signal to the conveyor belt of the previous stage of the conveyor belt of the current stage; after the bell-ringing action continues for a first preset time period, the conveyor belt of the current stage stops ringing and enters a standby state; when the conveyor belt of the current stage enters the standby state, if it receives a start signal corresponding to the next-stage conveyor belt, it executes a corresponding start action.

[0006] The coal crushing equipment is used to enter a standby state when it receives a bell signal corresponding to the next-level transport belt; when the coal crushing equipment is in the standby state, if it receives a start signal corresponding to the next-level transport belt, it executes a corresponding control action.

[0007] The transfer equipment is used to enter a start-up state when receiving a bell signal corresponding to a next-level transport belt. When the transfer equipment at this level enters the start-up state, it executes corresponding control actions based on whether a start-up signal of the next-level transport belt is received within a second preset time period.

[0008] Optionally, when the transfer equipment at the current level enters the start-up state, the corresponding control action is performed according to whether a start-up signal of the next-level transport belt is received within the second preset time period, including:

[0009] When the current-level transfer device enters the startup state, if the startup signal corresponding to the next-level conveyor belt is received within the second preset duration, the current-level transfer device remains in the startup state for operation.

[0010] When the current-level transfer device enters the startup state, if the startup signal corresponding to the next-level conveyor belt is not received within the second preset duration, the coal conveying system architecture enters the locked-stop state after the second preset duration ends. The locked-stop state is to interlock and stop all coal conveying devices at and before the current level.

[0011] Optionally, if the startup signal corresponding to the next-level conveyor belt is not received within the second preset duration, the coal conveying system architecture enters the locked-stop state after the second preset duration ends.

[0012] If the startup signal corresponding to the next-level conveyor belt is not received within the second preset duration, a locked-stop signal is sent to the next-level conveyor belt, so that the conveyor belt receiving the locked-stop signal sends the locked-stop signal to the corresponding next-level conveyor belt. The locked-stop signal is used to instruct the conveyor belt to stop.

[0013] Optionally, the transfer device includes a transfer station belt feeder; the transfer station belt feeder is used to act as a transfer station for connection between any two levels of conveyor belts. Among them, the belt speed of the transfer station belt feeder is less than the belt speed of the multi-level conveyor belts, so that coal feeding is continuous and uniform.

[0014] Optionally, when the current-level conveyor belt enters the standby state, if the startup signal corresponding to the next-level conveyor belt is received, corresponding startup actions are performed.

[0015] When the current-level conveyor belt enters the standby state, if the startup signal corresponding to the next-level conveyor belt is received, the startup actions of the current-level transfer device are performed.

[0016] When the current-level conveyor belt enters the standby state, if the startup signal corresponding to the next-level conveyor belt is not received, the current conveyor belt remains in the standby state.

[0017] Optionally, when the conveyor belt is the initial startup belt in the reverse coal flow, an initial bell signal is received, bell-ringing actions are performed according to the initial bell signal, and a bell signal is sent to the conveyor belt at the level above the initial startup belt.

[0018] Optionally, the initial startup belt is used for:

[0019] If the initial start belt starts to perform the bell-ringing action, start the bell-ringing timing.

[0020] When the timing reaches the first preset duration, perform the start action of the initial start belt.

[0021] Optionally, when the coal crushing equipment at this level is in the standby state, if the start signal corresponding to the next-level conveyor belt is received, perform the corresponding control action.

[0022] When the coal crushing equipment at this level enters the standby state, if the start signal corresponding to the next-level conveyor belt is received, send a ready signal of the coal crushing equipment at this level to the total control console, so that the coal crushing equipment at this level performs the start action according to the closing action made by the staff for the ready signal.

[0023] When the coal crushing equipment at this level enters the standby state, if the start signal corresponding to the next-level conveyor belt is not received, maintain the standby state.

[0024] Optionally, the coal crushing equipment includes a coal crusher and a roller screen.

[0025] During the start-up process of the coal crushing equipment, the coal crusher starts before the roller screen.

[0026] During the shutdown process of the coal crushing equipment, the next-level conveyor belt of the roller screen stops before the roller screen.

[0027] Optionally, the conveyor belt, or the coal crushing equipment, or the transfer equipment is further configured to, if the start signal corresponding to the next-level conveyor belt is received and the start of the equipment at this level fails, send a lock-stop signal to the next-level conveyor belt corresponding to the equipment at this level, and the lock-stop signal is used to instruct the next-level conveyor belt and all the equipment before it to perform interlocking stops.

[0028] Through the above technical solutions, at least the following technical effects can be achieved:

[0029] The purpose of the present disclosure is to provide a coal transportation system architecture, which shortens the start-up time while ensuring the original bell-ringing time of the belt, and at the same time ensures the operation safety of the belt, shortens the idling time of the belt motor, and saves the power consumption of the coal transportation system.

[0030] Other features and advantages of the present disclosure will be described in detail in the subsequent specific implementation part. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following detailed description, they serve to explain the present disclosure but do not limit the present disclosure. In the accompanying drawings:

[0032] Figure 1 It is a coal transportation system architecture diagram shown according to an exemplary embodiment.

[0033] Figure 2 It is a multi-stage conveyor belt start flowchart shown according to an exemplary embodiment.

[0034] Figure 3 It is a coal crusher equipment start flowchart shown according to an exemplary embodiment.

[0035] Figure 4 It is a transfer equipment start flowchart shown according to an exemplary embodiment.

[0036] Figure 5 It is a coal crusher equipment structure diagram shown according to an exemplary embodiment. Detailed Description of the Invention

[0037] The following provides a detailed description of the specific embodiments of the present disclosure with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only for explaining and understanding the present disclosure and do not limit the present disclosure.

[0038] In the present disclosure, unless otherwise stated, descriptive terms such as "upper level, lower level, front, and back" generally refer to the order of transportation equipment. The lower-level equipment is the equipment adjacent to the current-level equipment and closer to the coal flow end point relative to the current-level equipment. The upper-level equipment is the equipment adjacent to the current-level equipment and farther from the coal flow end point relative to the current-level equipment. The equipment before the current-level equipment is all the equipment closer to the coal flow end point relative to the current-level equipment. The equipment after the current-level equipment is all the equipment farther from the coal flow end point relative to the current-level equipment.

[0039] The purpose of the present disclosure is to provide a coal transportation system architecture to solve the technical problems in the related art, such as long waiting time for coal feeding, long idling time of the conveyor belt, and high power consumption of coal transportation in the traditional start method.

[0040] To achieve the above purpose, the present disclosure provides a coal transportation system architecture. Refer to Figure 1 as shown, Figure 1 It is a coal transportation system architecture diagram shown according to an exemplary embodiment. The coal transportation system architecture includes: a multi-stage conveyor belt 1301, a coal crusher equipment 1302 located between any two stages of the conveyor belt, and a transfer equipment 1303;

[0041] Refer to Figure 2 as shown. The multi-stage conveyor belt 1301 is used to perform the following steps:

[0042] S101. When receiving the bell signal corresponding to the next-level conveyor belt, the current-level conveyor belt performs a bell-ringing action and sends a bell signal to the equipment at the previous level of the current-level conveyor belt.

[0043] See Figure 1 As shown, the next-level conveyor belt is the conveyor belt adjacent to the current-level conveyor belt and closer to the end point of the coal flow relative to the current-level conveyor belt, and the previous-level conveyor belt is the conveyor belt adjacent to the current-level conveyor belt and farther from the end point of the coal flow relative to the current-level conveyor belt. See Figure 1 As shown, for example, #11 conveyor belt, #12 conveyor belt, and #13 conveyor belt are three adjacent conveyor belts. #13 conveyor belt is the conveyor belt closest to the end point of the coal flow. #12 conveyor belt is the previous-level conveyor belt of #13 conveyor belt, and #11 conveyor belt is the previous-level conveyor belt of #12 conveyor belt. After #13 conveyor belt starts ringing the bell, it sends a bell signal to #12 conveyor belt. After #12 conveyor belt receives the bell signal from #13 conveyor belt, it starts to perform the bell-ringing action and sends a bell signal to #11 conveyor belt. After #11 conveyor belt receives the bell signal from #12 conveyor belt, it starts to perform the bell-ringing action. And so on, until #1 conveyor belt receives the bell signal sent by #2 conveyor belt and starts to perform the bell-ringing action.

[0044] S102. After the bell-ringing action lasts for the first preset duration, the current level stops ringing the bell and enters the standby state.

[0045] Among them, the first preset duration is the time used to ensure the safe evacuation of nearby staff during the actual startup process.

[0046] The staff calculates the startup time of the conveyor belt and the safe evacuation time of on-site operators. In one implementation, the first preset duration of all conveyor belts is set to 55 seconds.

[0047] S103. When the current-level conveyor belt enters the standby state, corresponding control actions are performed according to whether the startup signal corresponding to the next-level conveyor belt is received.

[0048] When the conveyor belt is in the standby state, the conveyor belt will not perform the startup action nor enter the locked stop state.

[0049] In the above technical solution, the conveyor belt starts ringing the bell and sends a bell signal to the previous-level conveyor belt, shortening the bell-ringing time during reverse coal flow startup. Thus, the startup time is shortened on the premise of ensuring the original bell-ringing time of the belt, while also ensuring the safety of belt operation and shortening the idling time of the belt motor.

[0050] Further, seeFigure 3 As shown, the coal crushing equipment 1302 is used to perform the following steps:

[0051] S201. When receiving the bell signal corresponding to the next-level conveyor belt, the coal crushing equipment at this level enters the standby state.

[0052] Different from the conveyor belt, when receiving the bell signal corresponding to the next-level conveyor belt, the coal crushing equipment does not perform the bell-ringing action but directly enters the standby state.

[0053] The coal crushing equipment is an intermediate equipment between any two levels of conveyor belts. In one embodiment, refer to Figure 1 As shown, the coal crushing equipment A is an intermediate equipment between the #10 conveyor belt and the #11 conveyor belt. The #11 conveyor belt is the next-level conveyor belt of the coal crushing equipment A. If the #11 conveyor belt starts ringing the bell, a bell signal is sent to the coal crushing equipment A and the #10 conveyor belt. After receiving the bell signal from the #11 conveyor belt, the coal crushing equipment A enters the standby state.

[0054] S202. When the coal crushing equipment at this level is in the standby state, if receiving the start signal corresponding to the next-level conveyor belt, perform the corresponding control action.

[0055] Another example, refer to Figure 1 As shown, when the coal crushing equipment A is in the standby state, if the #11 conveyor belt is successfully started and sends a start signal to the coal crushing equipment A, the coal crushing equipment A performs the start action. If the #11 conveyor belt fails to start and the coal crushing equipment A does not receive the start signal, the coal crushing equipment A remains in the standby state.

[0056] Refer to Figure 4 As shown, the transfer equipment 1303 is used to perform the following steps:

[0057] S301. When receiving the bell signal corresponding to the next-level conveyor belt, the transfer equipment at this level enters the start state.

[0058] Different from the conveyor belt and the coal crushing equipment, when receiving the bell signal corresponding to the next-level conveyor belt, the transfer equipment neither performs the bell-ringing action nor enters the standby state, but directly performs the start action and thus enters the start state.

[0059] In one example, refer to Figure 1As shown, the transfer device B is the device interspersed between the #4 conveyor belt and the #5 conveyor belt. The #5 conveyor belt is the next-level device of the transfer device B. When the #5 conveyor belt starts ringing the bell, the #5 conveyor belt sends a bell-ringing signal to the transfer device B and the #4 conveyor belt. After receiving the bell-ringing signal sent by the #5 conveyor belt, the transfer device B directly enters the startup state and performs the startup action. After receiving the bell-ringing signal sent by the #5 conveyor belt, the #4 conveyor belt starts to perform the bell-ringing action.

[0060] S302. In the case where the current-level transfer device enters the startup state, perform corresponding control actions according to whether a startup signal from the next-level conveyor belt is received within a second preset duration.

[0061] Another example, see Figure 1 As shown, in the case where the transfer device B receives the bell-ringing signal from the #5 conveyor belt and enters the startup state, if the transfer device B receives the startup signal from the #5 conveyor belt within the second preset duration, the transfer device B maintains the startup state. If the startup signal from the #5 conveyor belt is not received within the second preset duration, the transfer device B enters the locked-stop state and sends a locked-stop signal to the #5 conveyor belt.

[0062] Among them, during the coal transportation process in a thermal power plant, the second preset duration is the first preset duration plus a delay duration. The delay duration is generally set to 15 seconds or 35 seconds. According to the above, the first preset duration is generally set to 55 seconds in the actual production process. Therefore, the second preset duration is generally 70 seconds or 90 seconds.

[0063] Optionally, as Figure 4 shown, S302, in the case where the current-level transfer device enters the startup state, performing corresponding control actions according to whether a startup signal from the next-level conveyor belt is received within a second preset duration includes:

[0064] In the case where the current-level transfer device enters the startup state, if the startup signal corresponding to the next-level conveyor belt is received within the second preset duration, maintain the current-level transfer device running in the startup state.

[0065] In one example, referring to Figure 1 shown, after the transfer device B is in the startup state, maintain the second preset duration. If the startup signal from the #5 conveyor belt is received within the second duration, maintain the transfer device B running in the startup state.

[0066] When the current-level transfer device enters the startup state, if the startup signal corresponding to the next-level conveyor belt is not received within the second preset duration, the coal conveying system architecture enters the locked-stop state after the end of the second preset duration. The locked-stop state is to interlock and stop all coal conveying devices at and before the current level.

[0067] Another example, referring to Figure 1 As shown, after the transfer device B enters the startup state and maintains the second preset duration, if the startup signal of the #5 conveyor belt is not received within the second duration, it stops running after the end of the second preset duration and sends a locked-stop signal to the #5 conveyor belt.

[0068] Through the above technical solution, the startup time can be shortened on the premise of ensuring the original bell-ringing time of the conveyor belt. At the same time, the running safety of the belt is ensured, the idling time of the belt motor is shortened, and the power consumption of the coal conveying system is saved. Among them, when the transportation device is in the standby state or the locked-stop state, if the controller is damaged or the operator accidentally touches the startup button, the transportation device will not perform the startup action.

[0069] Optionally, the case where if the startup signal corresponding to the next-level conveyor belt is not received within the second preset duration, the coal conveying system architecture enters the locked-stop state after the end of the second preset duration includes:

[0070] If the startup signal corresponding to the next-level conveyor belt is not received within the second preset duration, a locked-stop signal is sent to the next-level conveyor belt, so that the conveyor belt receiving the locked-stop signal sends the locked-stop signal to the corresponding next-level conveyor belt. The locked-stop signal is used to indicate that the conveyor belt stops.

[0071] In one example, referring to Figure 1 As shown, if the transfer device B does not receive the startup signal of the #5 conveyor belt within the second preset duration, the transfer device B stops running and sends a locked-stop signal to the #5 conveyor belt. After receiving the locked-stop signal of the transfer device B, the #5 conveyor belt stops running and sends a locked-stop signal to the #6 conveyor belt. After receiving the locked-stop signal of the #5 conveyor belt, the #6 conveyor belt stops running and sends a locked-stop signal to the #7 conveyor belt. In this way, the locked-stop signal is sent to the next level in turn and stops running until all devices stop.

[0072] Optionally, the transfer device 1303 includes a transfer station belt feeder; the transfer station belt feeder is used to act as a transfer station between two levels of conveyor belts for connection. Among them, the belt speed of the transfer station belt feeder is less than the belt speed of the multi-level conveyor belt, so that the coal feeding is continuous and uniform.

[0073] Optionally, in S103, when the current-level conveyor belt enters the standby state, if a start signal corresponding to the next-level conveyor belt is received, perform the corresponding start action.

[0074] When the current-level conveyor belt enters the standby state, if a start signal corresponding to the next-level conveyor belt is received, perform the start action of the current-level transfer equipment.

[0075] Reference Figure 1 As shown, taking the adjacent #12 conveyor belt and #13 conveyor belt as an example, when the #12 conveyor belt enters the standby state, if the #13 belt is successfully started, a start signal is sent to the #12 conveyor belt. After receiving the start signal of the #13 conveyor belt, the #12 conveyor belt performs the start action of the #12 conveyor belt.

[0076] When the current-level conveyor belt enters the standby state, if a start signal corresponding to the next-level conveyor belt is not received, the current-level conveyor belt remains in the standby state.

[0077] Reference Figure 1 As shown, taking the adjacent #12 conveyor belt and #13 conveyor belt as an example, when the #12 conveyor belt enters the standby state, if the #12 conveyor belt does not receive the start signal of the #13 conveyor belt, the #12 conveyor belt remains in the current standby state.

[0078] Optionally, when the conveyor belt is the initial start conveyor belt in the reverse coal flow, receive the initial bell signal, perform the bell action according to the initial bell signal, and send a bell signal to the conveyor belt at the previous level of the initial start conveyor belt.

[0079] Reference Figure 1 As shown, the #13 conveyor belt is the initial start conveyor belt closest to the end of the coal flow. The #13 conveyor belt receives the initial bell signal sent by the total control console and starts ringing, and sends a bell signal to the #12 conveyor belt.

[0080] Optionally, the initial start conveyor belt is used for:

[0081] If the initial start conveyor belt starts to perform the bell action, start the bell timing;

[0082] When the timing reaches the first preset duration, perform the start action of the initial start conveyor belt.

[0083] See Figure 1As shown, the #13 conveyor belt receives the initial bell signal sent by the main control console and starts ringing. After the ringing lasts for the first preset duration, the staff can click the start button on the control panel to execute the start action of the #13 conveyor belt.

[0084] Optionally, in S202, when the current stage coal crushing equipment is in the standby state, if the start signal corresponding to the next-stage conveyor belt is received, perform the corresponding control action.

[0085] When the current stage coal crushing equipment enters the standby state, if the start signal corresponding to the next-stage conveyor belt is received, send the ready signal of the current stage coal crushing equipment to the main control console, so that the current stage coal crushing equipment performs the start action according to the closing action made by the staff for the ready signal.

[0086] See Figure 1 As shown, when the coal crushing equipment A is in the standby state, if the #11 conveyor belt is successfully started, send the start signal to the coal crushing equipment A and the #10 conveyor belt. After receiving the start signal of the #11 conveyor belt, the coal crushing equipment A performs the start action and thus enters the start state.

[0087] When the current stage coal crushing equipment enters the standby state, if the start signal corresponding to the next-stage conveyor belt is not received, maintain the standby state.

[0088] See Figure 1 As shown, when the coal crushing equipment A is in the standby state, if the coal crushing equipment A does not receive the start signal of the #11 conveyor belt, the coal crushing equipment A maintains the standby state.

[0089] Optionally, the coal crushing equipment includes a coal crusher and a roller screen.

[0090] During the start process of the coal crushing equipment, the coal crusher starts before the roller screen.

[0091] During the shutdown process of the coal crushing equipment, the next-stage conveyor belt of the roller screen stops before the roller screen.

[0092] In one implementation, there can be one or more coal crushing equipments in a coal flow transportation line. The coal crusher is used to break large-sized coal particles screened by the roller screen into small-sized coal particles.

[0093] The roller screen uses multi-axis rotation to push the coal forward and performs screening at the same time. Particles smaller than the screen hole size fall from the screen holes under the action of their own weight and the rotational force of the screen shaft, and particles larger than the screen hole size remain on the screen surface and continue to move forward and enter the coal crusher for crushing.

[0094] In one implementation manner, refer toFigure 5 As shown in the figure, the coal crushing equipment includes a roller screen and a coal crusher. The roller screen and the coal crusher are equipment at the same level. However, during the startup process, the coal crusher enters the startup state before the roller screen. The roller screen can only start when it receives the startup signal from the coal crusher in the standby state.

[0095] Refer to Figure 1 As shown in the figure, the coal crushing equipment A is an intermediate equipment between the #11 conveyor belt and the #10 conveyor belt. The #11 conveyor belt is the next-level equipment of the coal crushing equipment A, and the coal crushing equipment A is the next-level equipment of the #10 conveyor belt. If the #11 conveyor belt starts ringing the bell, the #11 conveyor belt sends a bell-ringing signal to the coal crushing equipment A and the #10 conveyor belt. After receiving the bell-ringing signal from the #11 conveyor belt, both the coal crushing equipment A and the #10 conveyor belt enter the standby state;

[0096] If the coal crusher A receives the startup signal from the #11 conveyor belt in the standby state, it sends a ready signal of the coal crusher A to the main control console. The staff can click the startup button of the coal crusher A through the control page to make the coal crusher A perform the startup action. When the coal crusher A is in the standby state, if the coal crusher A does not receive the startup signal from the #11 conveyor belt, the coal crusher A remains in the standby state. At the same time, since the roller screen A does not receive the startup signal from the coal crusher A, the roller screen A remains in the standby state.

[0097] If the coal crusher A starts successfully, it sends a startup signal to the roller screen A. After receiving the startup signal from the coal crusher A, the roller screen A sends a ready signal of the roller screen A to the main control console. The staff can click the startup button of the roller screen A through the control page to make the roller screen A perform the startup action. After the roller screen A starts successfully, it sends a startup signal to the #10 conveyor belt.

[0098] The #10 conveyor belt also performs a bell-ringing action after receiving the bell-ringing signal from the #11 conveyor belt and enters the standby state after the bell-ringing ends. When the #10 conveyor belt is in the standby state, if it receives the startup signal from the roller screen A, the #10 conveyor belt sends a ready signal of the #10 conveyor belt to the main control console. The staff can click the startup button of the #10 conveyor belt through the control page to make the #10 conveyor belt perform the startup action. If the #10 conveyor belt does not receive the startup signal from the roller screen A within the second preset time period, the #10 conveyor belt remains in the standby state.

[0099] Optionally, the conveyor belt, or the coal crushing equipment, or the transfer equipment is also used to send a lock-stop signal to the next-level conveyor belt corresponding to the current-level equipment if the startup of the current-level equipment fails after receiving the startup signal from the next-level conveyor belt. The lock-stop signal is used to indicate that the next-level conveyor belt and all the equipment before it are interlocked and stopped.

[0100] Exemplarily, if a start signal corresponding to the next-level conveyor belt is received and the start of the current-level conveyor belt fails, a lock-stop signal is sent to the next-level conveyor belt corresponding to the current-level conveyor belt.

[0101] For example, as shown in Figure 1 Figure, the #5 conveyor belt receives the start signal of the #6 conveyor belt in the standby state. However, due to machine failures, belt blockages, etc., the start of the #5 conveyor belt fails. Then the #5 conveyor belt enters the lock-stop state and sends a lock-stop signal to the #6 conveyor belt. The #6 conveyor belt stops running and sequentially transmits the lock-stop signal to the next level until all equipment stops running.

[0102] Another exemplarily, if a start signal corresponding to the next-level conveyor belt is received and the start of the current-level coal crushing equipment fails, a lock-stop signal is sent to the next-level conveyor belt corresponding to the current-level coal crushing equipment.

[0103] For example, as shown in Figure 1 Figure, the coal crushing equipment A receives the start signal of the #11 conveyor belt in the standby state. However, due to machine failures, etc., the start of the coal crushing equipment A fails. Then the coal crushing equipment A enters the lock-stop state and sends a lock-stop signal to the #11 conveyor belt. The #11 conveyor belt stops running and sequentially transmits the lock-stop signal to the next level until all equipment stops running.

[0104] Yet another exemplarily, if a start signal corresponding to the next-level conveyor belt is received and the start of the current-level transfer equipment fails, a lock-stop signal is sent to the next-level conveyor belt corresponding to the current-level transfer equipment.

[0105] For example, as shown in Figure 1 Figure, the transfer equipment B receives the bell signal of the #5 conveyor belt. Due to machine failures, etc., the start of the transfer equipment B fails. The #5 conveyor belt starts normally and sends a start signal to the transfer equipment B. If the transfer equipment B still cannot start normally after receiving the start signal, then the transfer equipment B enters the lock-stop state and sends a lock-stop signal to the #5 conveyor belt. The #5 conveyor belt stops running and sequentially transmits the lock-stop signal to the next level until all equipment stops running.

[0106] The preferred embodiments of the present disclosure have been described in detail above with reference to the accompanying drawings. However, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0107] In addition, it should be noted that, in the above specific embodiments, the various specific technical features described can be combined in any appropriate manner without conflict. To avoid unnecessary repetition, the present disclosure will not separately describe various possible combination methods.

[0108] In addition, any combination can be made among various different embodiments of the present disclosure as long as it does not violate the idea of the present disclosure, and the same shall be regarded as the content disclosed by the present disclosure.

Claims

1. A coal transportation system architecture, characterized in that, The coal transportation system architecture includes: multiple conveyor belts, coal crushing equipment located between two levels of conveyor belts, and transfer equipment; The multiple conveyor belts are configured to, when receiving the bell signal corresponding to the next-level conveyor belt, the current-level conveyor belt performs a bell-ringing action and sends a bell signal to the previous-level conveyor belt of the current-level conveyor belt; after the bell-ringing action lasts for a first preset duration, the current-level conveyor belt stops ringing and enters a standby state; when the current-level conveyor belt enters the standby state, if receiving the start signal corresponding to the next-level conveyor belt, it performs a corresponding start action; The coal crushing equipment is configured to, when receiving the bell signal corresponding to the next-level conveyor belt, the current-level coal crushing equipment enters a standby state; when the current-level coal crushing equipment is in the standby state, if receiving the start signal corresponding to the next-level conveyor belt, it performs a corresponding control action; The transfer equipment is configured to, when receiving the bell signal corresponding to the next-level conveyor belt, the current-level transfer equipment enters a start state, and when the current-level transfer equipment enters the start state, it performs a corresponding control action according to whether the start signal of the next-level conveyor belt is received within a second preset duration, where the next-level conveyor belt is the conveyor belt adjacent to the current-level conveyor belt and closer to the coal flow end point relative to the current-level conveyor belt, and the previous-level conveyor belt is the conveyor belt adjacent to the current-level conveyor belt and farther from the coal flow end point relative to the current-level conveyor belt.

2. The coal transportation system architecture according to claim 1, wherein, The performing a corresponding control action according to whether the start signal of the next-level conveyor belt is received within a second preset duration when the current-level transfer equipment enters the start state includes: when the current-level transfer equipment enters the start state, if receiving the start signal corresponding to the next-level conveyor belt within the second preset duration, the current-level transfer equipment remains running in the start state; or, when the current-level transfer equipment enters the start state, if not receiving the start signal corresponding to the next-level conveyor belt within the second preset duration, the coal transportation system architecture enters a locked stop state after the second preset duration ends, and the locked stop state is to interlock and stop all coal conveying equipment at and before the current level, where the equipment before the current-level equipment is all equipment closer to the coal flow end point relative to the current-level equipment.

3. The coal transportation system architecture according to claim 2, characterized in that The entering the locked stop state of the coal transportation system architecture after the second preset duration ends if not receiving the start signal corresponding to the next-level conveyor belt within the second preset duration includes: if not receiving the start signal corresponding to the next-level conveyor belt within the second preset duration, a locked stop signal is sent to the next-level conveyor belt, so that the conveyor belt receiving the locked stop signal sends the locked stop signal to the corresponding next-level conveyor belt, and the locked stop signal is used to instruct the conveyor belt to stop.

4. The coal transportation system architecture according to claim 2, characterized in that The transfer equipment includes a transfer station belt feeder; The transfer station belt coal feeder is used to connect as a transfer station between any two levels of conveyor belts. Among them, the belt speed of the transfer station belt coal feeder is less than the belt speed of the multi-level conveyor belts, so that coal feeding is continuous and uniform.

5. The coal transportation system architecture according to claim 1, characterized in that When the current-level conveyor belt enters the standby state, if a start signal corresponding to the next-level conveyor belt is received, perform the corresponding start action, including: When the current-level conveyor belt enters the standby state, if a start signal corresponding to the next-level conveyor belt is received, then perform the start action of the current-level transfer equipment; or, When the current-level conveyor belt enters the standby state, if a start signal corresponding to the next-level conveyor belt is not received, the current conveyor belt remains in the standby state.

6. The coal transportation system architecture according to any one of claims 5, characterized in that When the conveyor belt is the initial start conveyor belt in the reverse coal flow, receive the initial bell signal, perform the bell ringing action according to the initial bell signal, and send a bell signal to the conveyor belt at the previous level of the initial start conveyor belt.

7. The coal transportation system architecture according to claim 6, characterized in that, The initial start conveyor belt is used for: If the initial start conveyor belt starts to perform the bell ringing action, start the bell ringing timing; When the timing reaches the first preset duration, perform the start action of the initial start conveyor belt.

8. The coal transportation system architecture according to any one of claims 1, characterized in that When the current-level coal crushing equipment is in the standby state, if a start signal corresponding to the next-level conveyor belt is received, perform the corresponding control action, including: When the current-level coal crushing equipment enters the standby state, if a start signal corresponding to the next-level conveyor belt is received, send a readiness signal of the current-level coal crushing equipment to the main control console, so that the current-level coal crushing equipment performs the start action according to the closing action made by the staff for the readiness signal; When the current-level coal crushing equipment enters the standby state, if a start signal corresponding to the next-level conveyor belt is not received, remain in the standby state.

9. The coal transportation system architecture according to claim 8, wherein The coal crushing equipment includes a coal crusher and a roller screen; During the start-up process of the coal crushing equipment, the coal crusher starts before the roller screen; During the shutdown process of the coal crushing equipment, the conveyor belt at the next level of the roller screen stops before the roller screen.

10. The coal transportation system architecture according to any one of claims 1-9, characterized in that, The conveyor belt, or the coal crushing equipment, or the transfer equipment is also used to send a lock-stop signal to the conveyor belt at the next level corresponding to the current-level equipment if the start of the current-level equipment fails when a start signal corresponding to the next-level conveyor belt is received. The lock-stop signal is used to instruct all equipment before the next-level conveyor belt and the next-level conveyor belt to perform interlocking stop, where the equipment before the next-level conveyor belt is all equipment closer to the coal flow end point relative to the next-level conveyor belt.

Images