Belt conveyor control method, device and belt conveyor

Abstract

The present invention discloses a control method and device for a belt conveyor and a belt conveyor. The belt conveyor includes a drive motor and a fan; the method includes: performing fault detection on the fan; and controlling the drive motor to stop running in response to a fault in the fan. Thus, when a fault occurs in the fan, the drive motor can be controlled to stop running, which can avoid the drive motor from running when a fault occurs in the fan, greatly reducing the risk of overheating of the drive motor, improving the safety and reliability of the drive motor operation, and thus improving the safety and reliability of the belt conveyor operation.

Description

Technical Field

[0001] The invention relates to the technical field of coal mining, and in particular to a control method and device for a belt conveyor and a belt conveyor. Background Art

[0002] At present, belt conveyors have the advantages of simple structure, large conveying capacity, and low power consumption, and have been widely used in logistics, industry and other fields. For example, people can use belt conveyors to transport express parcels, coal, food, medicine, etc. However, belt conveyors in related technologies have problems such as low safety and low reliability. Summary of the invention

[0003] The present invention aims to solve one of the technical problems in the above-mentioned technology at least to some extent.

[0004] To this end, one object of the present invention is to propose a control method for a belt conveyor, which can control the drive motor to stop running when the fan fails, thereby avoiding the drive motor from running when the fan fails, greatly reducing the risk of overheating of the drive motor, and improving the safety and reliability of the drive motor operation, thereby improving the safety and reliability of the belt conveyor operation.

[0005] A second object of the present invention is to provide a control device for a belt conveyor.

[0006] The third object of the present invention is to provide a belt conveyor.

[0007] A fourth objective of the present invention is to provide an electronic device.

[0008] A fifth object of the present invention is to provide a computer-readable storage medium.

[0009] A first aspect of the present invention provides a control method for a belt conveyor, wherein the belt conveyor includes a drive motor and a fan; the method includes: performing fault detection on the fan; and controlling the drive motor to stop running in response to a fault in the fan.

[0010] According to the control method of the belt conveyor of the embodiment of the present invention, the fan fault detection is performed, and in response to the fan fault, the drive motor is controlled to stop running. Therefore, when the fan fails, the drive motor can be controlled to stop running, which can avoid the drive motor running when the fan fails, greatly reducing the risk of overheating of the drive motor, improving the safety and reliability of the drive motor operation, and thus improving the safety and reliability of the belt conveyor operation.

[0011] In addition, the control method of the belt conveyor proposed in the above embodiment of the present invention may also have the following additional technical features:

[0012] In one embodiment of the present invention, when the driving motor is not started, the method further includes: in response to the fan not failing, controlling the driving motor to start.

[0013] In one embodiment of the present invention, before controlling the drive motor to start, the process further includes: receiving a start instruction of the drive motor; and / or receiving a start instruction of the belt conveyor.

[0014] In one embodiment of the present invention, when the drive motor is started, the method further includes: in response to the fan not failing, controlling the drive motor to continue running.

[0015] In one embodiment of the present invention, the fault detection of the fan includes: detecting the switching state of the main switch of the fan, wherein the switching state is a closed state or an open state; in response to the switching state of the main switch being an open state, determining that the fan has a fault.

[0016] In one embodiment of the present invention, the main switch includes a plurality of sub-switches connected in series, and the detecting the switching state of the main switch of the wind turbine includes: detecting the switching state of each of the sub-switches; and in response to the existence of at least one of the sub-switch having a switching state that is an open state, determining that the switching state of the main switch is an open state.

[0017] In one embodiment of the present invention, the fault detection of the fan includes: detecting the value of the operating parameter of the fan; identifying that the value of the operating parameter is not within a set range, and determining that the fan is faulty.

[0018] In one embodiment of the present invention, the method further includes: in response to a failure of the wind turbine, sending indication information indicating that the wind turbine has failed to a server.

[0019] The second aspect of the present invention provides a control device for a belt conveyor, which includes a drive motor and a fan; the device includes: a detection module for performing fault detection on the fan; and a control module for controlling the drive motor to stop running in response to a fault in the fan.

[0020] The control device of the belt conveyor of the embodiment of the present invention performs fault detection on the fan, and controls the drive motor to stop running in response to the fan failure. Therefore, when the fan fails, the drive motor can be controlled to stop running, which can avoid the drive motor running when the fan fails, greatly reducing the risk of overheating of the drive motor, improving the safety and reliability of the drive motor operation, and thus improving the safety and reliability of the belt conveyor operation.

[0021] In addition, the control device of the belt conveyor according to the above embodiment of the present invention may also have the following additional technical features:

[0022] In one embodiment of the present invention, when the drive motor is not started, the control module is further used to: in response to the fan not failing, control the drive motor to start.

[0023] In one embodiment of the present invention, before controlling the drive motor to start, the control module is further used to: receive a start instruction of the drive motor; and / or receive a start instruction of the belt conveyor.

[0024] In one embodiment of the present invention, when the drive motor is started, the control module is further used to: in response to the fan not failing, control the drive motor to continue running.

[0025] In one embodiment of the present invention, the detection module is further used to: detect the switching state of the main switch of the fan, wherein the switching state is a closed state or an open state; in response to the switching state of the main switch being an open state, determine that the fan has a fault.

[0026] In one embodiment of the present invention, the main switch includes a plurality of sub-switches connected in series, and the detection module is further used to: detect the switching state of each of the sub-switch; and determine that the switching state of the main switch is the disconnected state in response to the existence of at least one of the sub-switch whose switching state is the disconnected state.

[0027] In one embodiment of the present invention, the detection module is further used to: detect the value of the operating parameter of the fan; identify that the value of the operating parameter is not within a set range, and determine that the fan is faulty.

[0028] In one embodiment of the present invention, the control module is further used to: in response to a failure of the fan, send indication information indicating that the fan has failed to the server.

[0029] The third embodiment of the present invention provides a belt conveyor, comprising a drive motor, a fan and the control device of the belt conveyor described in the second embodiment of the present invention.

[0030] The belt conveyor of the embodiment of the present invention performs fault detection on the fan, and controls the drive motor to stop running in response to the fan fault. Therefore, when the fan fails, the drive motor can be controlled to stop running, which can avoid the drive motor running when the fan fails, greatly reducing the risk of overheating of the drive motor, improving the safety and reliability of the drive motor operation, and thus improving the safety and reliability of the belt conveyor operation.

[0031] The fourth aspect of the present invention provides an electronic device, comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the program, the belt conveyor control method as described in the first aspect of the present invention is implemented.

[0032] The electronic device of the embodiment of the present invention performs fault detection on the fan by executing a computer program stored in a memory through a processor, and controls the drive motor to stop running in response to a fan fault. Thus, when a fan fault occurs, the drive motor can be controlled to stop running, which can avoid the drive motor from running when the fan fault occurs, greatly reducing the risk of overheating of the drive motor, improving the safety and reliability of the drive motor operation, and thus improving the safety and reliability of the belt conveyor operation.

[0033] The fifth aspect of the present application provides a computer-readable storage medium on which a computer program is stored. When the program is executed by a processor, the belt conveyor control method as described in the first aspect of the present application is implemented.

[0034] The computer-readable storage medium of the embodiment of the present invention stores a computer program and is executed by a processor to detect a fault of the fan, and in response to a fault of the fan, controls the drive motor to stop running. Thus, when a fault occurs in the fan, the drive motor can be controlled to stop running, which can avoid the drive motor from running when a fault occurs in the fan, greatly reducing the risk of overheating of the drive motor, improving the safety and reliability of the drive motor operation, and thus improving the safety and reliability of the belt conveyor operation.

[0035] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0037] Figure 1 A schematic flow chart of a belt conveyor control method according to an embodiment of the present invention;

[0038] Figure 2 is a flow chart of a belt conveyor control method according to a specific example of the present invention;

[0039] Figure 3 A schematic structural diagram of a belt conveyor according to an embodiment of the present invention;

[0040] Figure 4 is a structural schematic diagram of a control device for a belt conveyor according to an embodiment of the present invention;

[0041] Figure 5 is a structural schematic diagram of a belt conveyor according to another embodiment of the present invention;

[0042] Figure 6 FIG. 1 is a schematic structural diagram of an electronic device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0043] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0044] The following describes a control method, device, belt conveyor, electronic device and storage medium of a belt conveyor according to an embodiment of the present invention in conjunction with the accompanying drawings.

[0045] In an embodiment of the present invention, the belt conveyor includes a drive motor and a fan. It is understandable that the drive motor is used to provide power to the belt conveyor. In one embodiment, the fan includes a cooling fan, and the cooling fan is used to cool the belt conveyor, for example, the cooling fan is used to cool the drive motor.

[0046] Figure 1 The figure is a flow chart of a belt conveyor control method according to an embodiment of the present invention.

[0047] like Figure 1 As shown, the control method of the belt conveyor according to the embodiment of the present invention includes:

[0048] S101, performing fault detection on the fan.

[0049] It should be noted that there are no excessive restrictions on the faults of the fan, for example, the faults include but are not limited to startup failure (such as switch failure), premature shutdown, abnormal operating parameters, etc. Among them, premature shutdown may include the fan stopping when the fan is started and does not receive a shutdown command from at least one of the fan, drive motor, and belt conveyor.

[0050] It should be noted that there are no excessive restrictions on the shutdown command. For example, the user can issue a shutdown command for at least one of the fan, the drive motor, and the belt conveyor through a remote controller, a belt conveyor control program in a server, or a control panel on the belt conveyor body.

[0051] In one implementation, the fault detection of the fan may include the following two possible implementations:

[0052] Method 1: detecting the switch state of the main switch of the fan, wherein the switch state is a closed state or an open state, and in response to the switch state of the main switch being an open state, determining that the fan has a fault.

[0053] It is understandable that when the switch state of the main switch is disconnected, the fan may fail to start, stop running prematurely, and other faults, and it can be determined that the fan has a fault.

[0054] It should be noted that there are no excessive restrictions on the main switch of the fan.

[0055] In one embodiment, the main switch of the fan includes a plurality of sub-switches connected in series, and detecting the switch state of the main switch of the fan may include detecting the switch state of each sub-switch, and in response to the switch state of at least one sub-switch being in an open state, determining that the switch state of the main switch is in an open state. Alternatively, in response to the switch state of each sub-switch being in a closed state, determining that the switch state of the main switch is in a closed state. Thus, the switch state of each sub-switch may be comprehensively considered in the method to determine the switch state of the main switch.

[0056] Therefore, in this method, it can be determined whether the fan fails according to the switch state of the main switch of the fan.

[0057] Method 2: Detect the values ​​of the operating parameters of the fan, identify that the values ​​of the operating parameters are not within the set range, and determine that the fan is faulty.

[0058] It should be noted that the setting range refers to the reference range of the values ​​of the operating parameters of the fan, which can be pre-set according to actual conditions.

[0059] It should be noted that there are no excessive restrictions on the operating parameters of the fan, for example, the operating parameters include but are not limited to the fan speed, fan operating frequency, fan internal temperature, fan outlet wind speed, fan outlet air volume, etc. It is understandable that different operating parameters may correspond to different setting ranges.

[0060] Therefore, in this method, it can be determined whether the fan fails based on the values ​​of the operating parameters of the fan.

[0061] S102, in response to a blower failure, controlling the drive motor to stop running.

[0062] In the embodiments of the present disclosure, in response to a blower failure, controlling the drive motor to stop running may include the following two possible implementations:

[0063] Mode 1: When the drive motor is not started, in response to a blower failure, the drive motor is controlled to continue to stop running.

[0064] Therefore, in this method, when the drive motor is not started and the fan fails, the drive motor can be controlled to continue to stop running, thereby preventing the drive motor from starting when the fan fails.

[0065] Mode 2: When the drive motor is started, in response to a blower failure, the drive motor is controlled to stop running.

[0066] Therefore, in this method, when the drive motor is started and the fan fails, the drive motor can be controlled to stop running, which can prevent the drive motor from continuing to run when the fan fails.

[0067] In one embodiment, in response to a fan failure, indication information indicating the fan failure is sent to a server so as to promptly inform a user of the fan failure, thereby improving the safety and reliability of the belt conveyor operation.

[0068] In summary, according to the control method of the belt conveyor of the embodiment of the present invention, the fan fault detection is performed, and in response to the fan fault, the drive motor is controlled to stop running. Therefore, when the fan fails, the drive motor can be controlled to stop running, which can avoid the drive motor running when the fan fails, greatly reducing the risk of overheating of the drive motor, improving the safety and reliability of the drive motor operation, and thus improving the safety and reliability of the belt conveyor operation.

[0069] Based on any of the above embodiments, when the drive motor is not started, the method further includes controlling the drive motor to start in response to the fan not failing. Thus, the method can control the drive motor to start when the drive motor is not started and the fan is not failing.

[0070] In one embodiment, before controlling the start of the drive motor, it also includes receiving a start instruction of the drive motor and / or receiving a start instruction of the belt conveyor. It should be noted that the relevant content of the start instruction can refer to the relevant content of the stop instruction in the above embodiment, which will not be repeated here.

[0071] Based on any of the above embodiments, when the drive motor is started, the method further includes controlling the drive motor to continue to operate in response to the fan not failing. Thus, in the method, when the drive motor is started and the fan is not failing, the drive motor can be controlled to continue to operate.

[0072] In order to make those skilled in the art understand the present invention more clearly, Figure 2 FIG. 1 is a flow chart of a control method for a belt conveyor according to a specific example of the present invention. Figure 2 As shown, the control method may include the following steps:

[0073] S201, performing fault detection on the fan.

[0074] S202, in response to a blower failure, controlling the drive motor to stop running.

[0075] S203, in response to the fan not failing, determining whether the drive motor is started.

[0076] S204, when the drive motor is started, controlling the drive motor to continue running.

[0077] S205 , when the drive motor is not started, in response to receiving a start instruction of the drive motor and / or the belt conveyor, controlling the drive motor to start.

[0078] It should be noted that the relevant contents of steps S201-S205 can be found in the above embodiment and will not be described again here.

[0079] Based on any of the above embodiments, Figure 3 As shown, the belt conveyor 100 includes a driving motor 1, a fan 2, a frequency converter 3, a main controller 4 and a main switch 5 of the fan. The main switch 5 includes a sub-switch 51 and a sub-switch 52. The output end of the frequency converter 3, the sub-switch 51 and the sub-switch 52 all include a normally open point, a common end and a normally closed point, and the input end of the main controller 4 includes two operation feedback points. The frequency converter 3 is a frequency converter for driving the motor 1.

[0080] The normally open point of sub-switch 51 is connected to the common end of the output end of the inverter 3, the common end of sub-switch 51 is connected to the normally open point of sub-switch 52, the common end of sub-switch 52 is connected to an operation feedback point of the input end of the main controller 4, and the other operation feedback point of the input end of the main controller 4 is connected to the normally open point of the output end of the inverter 3.

[0081] The common terminal of the output terminal of the frequency converter 3 can output the feedback signal of the frequency converter 3. It should be noted that there is no excessive limitation on the feedback signal of the frequency converter 3. For example, the feedback signal of the frequency converter 3 is used to indicate the operating state of the frequency converter 3, wherein the operating state includes starting and not starting.

[0082] like Figure 3 As shown, when the main switch 5 is in a closed state, that is, when the sub-switches 51 and 52 are both in a closed state, the feedback signal of the inverter 3 can be sent to the main controller 4 through the main switch 5. After receiving the feedback signal of the inverter 3, the main controller 4 can control the inverter 3 to continue running when the inverter 3 is started, so as to control the drive motor 1 to continue running, or, when the inverter 3 is not started, it can control the inverter 3 to start in response to receiving the start-up command of the drive motor and / or the belt conveyor, so as to control the drive motor 1 to start.

[0083] When the main switch 5 is in the disconnected state, that is, when at least one of the sub-switches 51 and 52 is in the disconnected state, the feedback signal of the inverter 3 cannot be sent to the main controller 4 through the main switch 5. After not receiving the feedback signal of the inverter 3, the main controller 4 can control the inverter 3 to stop running, so as to control the drive motor 1 to stop running.

[0084] Therefore, in this scheme, the main switch of the fan can be added to the control circuit of the drive motor, and then the drive motor can be controlled to stop running when the main switch of the fan is in the disconnected state, that is, the drive motor can be controlled to stop running when the fan is not started, thereby improving the safety and reliability of the drive motor operation.

[0085] In order to realize the above embodiment, the present invention further provides a control device for a belt conveyor. The belt conveyor includes a driving motor and a fan.

[0086] Figure 4 Schematic diagram of the structure of a belt conveyor control device according to an embodiment of the present invention.

[0087] like Figure 4 As shown, the control device 200 of the belt conveyor according to the embodiment of the present invention includes: a detection module 210 and a control module 220 .

[0088] The detection module 210 is used to perform fault detection on the fan;

[0089] The control module 220 is used for controlling the driving motor to stop running in response to a failure of the fan.

[0090] In one embodiment of the present invention, when the drive motor is not started, the control module 220 is further configured to: in response to the fan not failing, control the drive motor to start.

[0091] In one embodiment of the present invention, before controlling the drive motor to start, the control module 220 is further used to: receive a start instruction of the drive motor; and / or receive a start instruction of the belt conveyor.

[0092] In one embodiment of the present invention, when the drive motor is started, the control module 220 is further configured to: in response to the fan not failing, control the drive motor to continue running.

[0093] In one embodiment of the present invention, the detection module 210 is also used to: detect the switching state of the main switch of the fan, wherein the switching state is a closed state or an open state; in response to the switching state of the main switch being an open state, determine that the fan has a fault.

[0094] In one embodiment of the present invention, the main switch includes a plurality of sub-switches connected in series, and the detection module 210 is further used to: detect the switch state of each of the sub-switches; and in response to the existence of at least one of the sub-switch having a switch state of being in an open state, determine that the switch state of the main switch is in an open state.

[0095] In one embodiment of the present invention, the detection module 210 is further used to: detect the value of the operating parameter of the fan; identify that the value of the operating parameter is not within a set range, and determine that the fan fails.

[0096] In one embodiment of the present invention, the control module 220 is further configured to: in response to a failure of the fan, send indication information indicating that the fan has failed to a server.

[0097] It should be noted that, for details not disclosed in the control device of the belt conveyor in the embodiment of the present invention, please refer to the details disclosed in the control method of the belt conveyor in the embodiment of the present invention, which will not be repeated here.

[0098] In summary, the control device of the belt conveyor in the embodiment of the present invention performs fault detection on the fan, and controls the drive motor to stop running in response to the fan failure. Therefore, when the fan fails, the drive motor can be controlled to stop running, which can avoid the drive motor running when the fan fails, greatly reducing the risk of overheating of the drive motor, improving the safety and reliability of the drive motor operation, and thus improving the safety and reliability of the belt conveyor operation.

[0099] In order to implement the above embodiment, Figure 5 As shown, an embodiment of the present invention provides a belt conveyor 100, including a driving motor 1, a fan 2 and a belt conveyor control device 200.

[0100] The belt conveyor of the embodiment of the present invention performs fault detection on the fan, and controls the drive motor to stop running in response to the fan fault. Therefore, when the fan fails, the drive motor can be controlled to stop running, which can avoid the drive motor running when the fan fails, greatly reducing the risk of overheating of the drive motor, improving the safety and reliability of the drive motor operation, and thus improving the safety and reliability of the belt conveyor operation.

[0101] In order to implement the above embodiment, Figure 6 As shown, an embodiment of the present invention proposes an electronic device 300, including: a memory 310, a processor 320, and a computer program stored in the memory 310 and executable on the processor 320. When the processor 320 executes the program, the above-mentioned belt conveyor control method is implemented.

[0102] The electronic device of the embodiment of the present invention performs fault detection on the fan by executing a computer program stored in a memory through a processor, and controls the drive motor to stop running in response to a fan fault. Thus, when a fan fault occurs, the drive motor can be controlled to stop running, which can avoid the drive motor from running when the fan fault occurs, greatly reducing the risk of overheating of the drive motor, improving the safety and reliability of the drive motor operation, and thus improving the safety and reliability of the belt conveyor operation.

[0103] In order to implement the above embodiment, the embodiment of the present invention proposes a computer-readable storage medium, on which a computer program is stored. When the program is executed by a processor, the above belt conveyor control method is implemented.

[0104] The computer-readable storage medium of the embodiment of the present invention stores a computer program and is executed by a processor to detect a fault of the fan, and in response to a fault of the fan, controls the drive motor to stop running. Thus, when a fault occurs in the fan, the drive motor can be controlled to stop running, which can avoid the drive motor from running when a fault occurs in the fan, greatly reducing the risk of overheating of the drive motor, improving the safety and reliability of the drive motor operation, and thus improving the safety and reliability of the belt conveyor operation.

[0105] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0106] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0107] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0108] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0109] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0110] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A belt conveyor control method, characterized in that: The belt conveyor includes a driving motor and a fan; The method comprises: Performing fault detection on the fan; In response to a failure of the fan, controlling the drive motor to stop running; Wherein, the performing fault detection on the fan includes: The main switch includes a plurality of sub-switches connected in series, and the switch state of each sub-switch is detected; In response to at least one of the sub-switches being in an open state, determining that the switch state of the main switch is in an open state, wherein the switch state is a closed state or an open state; In response to the main switch being in an off state, determining that the fan fails; The controlling the drive motor to stop running in response to the failure of the fan comprises: when the drive motor is not started, in response to the failure of the fan, controlling the drive motor to continue to stop running, or when the drive motor is started, in response to the failure of the fan, controlling the drive motor to stop running; The detecting the switch state of each of the sub-switches comprises: Detecting the switch state of each sub-switch, and in response to at least one sub-switch being in an open state, determining that the switch state of the main switch is in an open state, or, in response to each sub-switch being in a closed state, determining that the switch state of the main switch is in a closed state; The performing fault detection on the fan further comprises: Detecting the values ​​of the operating parameters of the fan; Identifying that the value of the operating parameter is not within a set range, and determining that the fan is faulty, wherein the set range refers to a reference range of the value of the fan operating parameter, and the operating parameters include fan speed, fan operating frequency, fan internal temperature, fan outlet wind speed, and fan outlet air volume; When the driving motor is not started, the method further comprises: In response to the fan not failing, controlling the drive motor to start; Before the controlling the driving motor to start, the method further includes: receiving a start instruction of the drive motor; and / or, Receiving a start instruction of the belt conveyor; When the driving motor is started, the method further comprises: In response to the fan not failing, the drive motor is controlled to continue running.

2. The method according to claim 1, characterized in that Also includes: In response to the fan failing, indication information indicating that the fan failing occurs is sent to a server.

3. A control device for a belt conveyor, characterized in that: The belt conveyor includes a driving motor and a fan; The device comprises: A detection module, used for performing fault detection on the fan; A control module, configured to control the drive motor to stop running in response to a failure of the fan; The main switch includes a plurality of sub-switches connected in series, and the switch state of each of the sub-switches is detected. The detection module is specifically used to detect the switch state of each of the sub-switches, and in response to the switch state of at least one of the sub-switches being in an open state, determine that the switch state of the main switch is in an open state, wherein the switch state is a closed state or an open state, and in response to the switch state of the main switch being in an open state, determine that the fan has a fault; The control module is specifically used to control the drive motor to continue to stop running in response to a failure of the fan when the drive motor is not started, or to control the drive motor to stop running in response to a failure of the fan when the drive motor is started; The detecting the switch state of each of the sub-switches comprises: Detecting the switch state of each sub-switch, and in response to at least one sub-switch being in an open state, determining that the switch state of the main switch is in an open state, or, in response to each sub-switch being in a closed state, determining that the switch state of the main switch is in a closed state; The performing fault detection on the fan further comprises: Detecting the values ​​of the operating parameters of the fan; Identifying that the value of the operating parameter is not within a set range, and determining that the fan is faulty, wherein the set range refers to a reference range of the value of the fan operating parameter, and the operating parameters include fan speed, fan operating frequency, fan internal temperature, fan outlet wind speed, and fan outlet air volume; When the driving motor is not started, the method further comprises: In response to the fan not failing, controlling the drive motor to start; Before the controlling the driving motor to start, the method further includes: receiving a start instruction of the drive motor; and / or, Receiving a start instruction of the belt conveyor; When the driving motor is started, the method further comprises: In response to the fan not failing, the drive motor is controlled to continue running.

4. A belt conveyor, characterized in that: include: A driving motor, a fan and a control device for a belt conveyor as claimed in claim 3.

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