Deicing device and method of belt conveyor and belt conveyor

Abstract

The invention discloses a deicing device and method for a belt conveyor and the belt conveyor. The deicing device comprises a detector, a first deicing mechanism and a controller. The first deicing mechanism comprises a deicing agent storage box, a pipeline assembly and a nozzle. The nozzle is arranged on one side of the lower belt face of a conveying belt of the belt conveyor, and an outlet of the nozzle is aligned with the surface of the conveying belt. And under the condition that the detector detects that an ice layer exists on the surface of the conveying belt, the controller controls the pipeline assembly to convey the deicing agent from the deicing agent storage box body to the nozzle, and the deicing agent is sprayed to an icing area of the conveying belt through the nozzle. Therefore, the deicing reliability and safety of the belt conveyor are improved, and the working efficiency of the belt conveyor is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of belt conveyors, and particularly to an ice removal device, method and belt conveyor for a belt conveyor. Background Art

[0002] As a key device for material transportation, the belt conveyor undertakes the important task of transporting various materials. When the transported materials contain moisture, the moisture is extremely likely to freeze on the conveyor belt of the belt conveyor in a low-temperature environment. Once the conveyor belt freezes, the friction between the material and the conveyor belt decreases due to icing, resulting in slipping between the material and the conveyor belt, and then causing a stockpiling phenomenon. For a belt conveyor adopting a multi-drive mode, icing of the conveyor belt will cause an imbalance in the friction between the conveyor belt and the driving drum, resulting in slipping, which affects the stable operation of the belt conveyor.

[0003] In some scenarios, mechanical ice removal and heating ice removal methods are often used to remove the ice layer on the belt conveyor. Among them, mechanical ice removal is to extrude or mechanically rub the surface of the conveyor belt of the belt conveyor through an ice-breaking wheel or an ice-removing ball. However, this method is likely to damage the conveyor belt, thereby shortening the service life of the belt conveyor, and the ice removal reliability is relatively low. Heating ice removal is a physical heating method, which requires the belt conveyor to be in a stopped state and then locally heated regularly. In this way, the working efficiency of the belt conveyor will be affected. Moreover, since the conveyor belt is made of rubber material, if it is continuously heated for a long time, it is easy to cause rubber aging or structural damage, and in severe cases, it is easy to occur fire safety accidents, and the ice removal safety is relatively low. To sum up, the existing ice removal methods for belt conveyors have low reliability and safety, and will reduce the working efficiency of the belt conveyor. Summary of the Invention

[0004] In order to solve the technical problems that the ice removal reliability and safety of the surface of the conveyor belt of the belt conveyor are relatively low, and the working efficiency of the belt conveyor is reduced, the purpose of the present invention is to provide an ice removal device, method and belt conveyor for a belt conveyor, and the specific technical solutions adopted are as follows: In the first aspect, an embodiment of the present invention discloses an ice removal device for a belt conveyor, including: a detector 100, a first ice removal mechanism 200 and a controller 204; the first ice removal mechanism 200 includes an ice removal agent storage box 201, a pipeline assembly 202 and a nozzle 203. The nozzle 203 is arranged on one side of the lower belt surface of the conveyor belt of the belt conveyor, and the outlet of the nozzle 203 is aligned with the surface of the conveyor belt. When the detector 100 detects that there is an ice layer on the surface of the conveyor belt, the controller 204 controls the pipeline assembly 202 to transport the ice removal agent from the ice removal agent storage box 201 to the nozzle 203, and sprays the ice removal agent to the icing area of the conveyor belt through the nozzle 203.

[0005] Optionally, the first de-icing mechanism 200 includes a de-icing agent storage box 201, a pipeline assembly 202, and a nozzle 203. The pipeline assembly 202 includes a water pump, a solenoid valve 2020, a first pipeline 2021, and a second pipeline 2022. The first pipeline 2021 is connected to the second pipeline 2022. A plurality of nozzles are arranged at intervals on the second pipeline 2022, and the length of the second pipeline 2022 is greater than the width of the conveyor belt. The water pump is fixed inside the de-icing agent storage box 201. When the detector 100 detects that the surface of the conveyor belt is frozen, the controller 204 controls the solenoid valve to actuate and starts the water pump to extract the de-icing agent from the de-icing agent storage box 201 and convey it to the first pipeline 2021. The de-icing agent enters the second pipeline 2022 through the first pipeline 2021, and the de-icing agent is sprayed onto the frozen area of the conveyor belt through the plurality of nozzles 203 provided on the second pipeline 2022.

[0006] Optionally, the de-icing device of the belt conveyor further includes a second de-icing mechanism 300. Along the running direction of the conveyor belt, the first de-icing mechanism 200 and the second de-icing mechanism 300 are arranged in sequence. The second de-icing mechanism 300 includes a scraper 301 and an adjusting mechanism 302 provided on one side of the lower belt surface of the conveyor belt of the belt conveyor. The scraper 301 and the adjusting mechanism 302 are fixedly connected. In the initial state, the scraper 301 does not contact the surface of the conveyor belt. When the detector 100 detects that there is ice on the surface of the conveyor belt, the controller 204 controls the adjusting mechanism 302 to act to drive the scraper 301 close to the surface of the conveyor belt. After the scraper is in close contact with the surface of the conveyor belt, the controller 204 controls the adjusting mechanism 302 to stop acting. When the detector 100 detects that the ice on the surface of the conveyor belt has been removed, the controller 204 controls the adjusting mechanism 302 to act to drive the scraper 301 away from the surface of the conveyor belt. After the scraper 301 reaches the predetermined position, the controller 204 controls the adjusting mechanism 302 to stop acting.

[0007] Optionally, the adjusting mechanism 302 includes a driving component 3020, a transmission component 3021, a first limit switch, and a second limit switch. The driving component 3020 is configured to drive the transmission component 3021 to transmit power, and the scraper 301 is fixedly connected to the transmission component 3021. In the initial state, the scraper 301 does not contact the surface of the conveyor belt and is in a predetermined position restricted by the second limit switch. When the detector 100 detects the presence of ice on the surface of the conveyor belt, the controller 204 controls the driving component 3020 to rotate forward to drive the transmission component 3021 to drive the scraper 301 closer to the surface of the conveyor belt. After the scraper is in close contact with the surface of the conveyor belt, the first limit switch is actuated and the controller 204 controls the driving component 3020 to stop operating. When the detector 100 detects that the ice on the surface of the conveyor belt has been removed, the controller 204 controls the driving component 3020 to rotate in reverse to drive the transmission component 3021 to drive the scraper 301 away from the surface of the conveyor belt. After the scraper 301 reaches the predetermined position, the second limit switch is actuated and the controller 204 controls the driving component 3020 to stop operating.

[0008] Optionally, the adjusting mechanism 302 includes a bracket, a telescopic component, a first limit switch, and a second limit switch. One end of the telescopic component is fixedly connected to the bracket, and the scraper 301 is fixedly connected to the other end of the telescopic component. In the initial state, the scraper 301 does not contact the surface of the conveyor belt. When the detector 100 detects the presence of ice on the surface of the conveyor belt, the controller 204 controls the piston rod of the telescopic component to extend to drive the scraper 301 closer to the surface of the conveyor belt. After the scraper is in close contact with the surface of the conveyor belt, the first limit switch is actuated and the controller 204 controls the telescopic component to stop operating. When the detector 100 detects that the ice on the surface of the conveyor belt has been removed, the controller 204 controls the piston rod of the telescopic component to retract to drive the scraper 301 away from the surface of the conveyor belt. After the scraper 301 reaches the predetermined position, the second limit switch is actuated and the controller 204 controls the telescopic component to stop operating.

[0009] Optionally, the detector 100 includes a laser detector 101 and a vibration sensor 102; the laser detector 101 includes a laser emitter and a laser receiver. The laser emitter is configured to emit laser pulses onto the surface of the conveyor belt. After being reflected by the surface of the conveyor belt, the reflected laser pulses return to the laser receiver. The laser receiver converts the received reflected laser signal into an electrical signal and outputs it to the controller 204. The controller 204 is configured to determine whether there is ice layer based on the signal intensity of the reflected laser signal. The vibration sensor 102 is mounted on the return belt idler bracket of the belt conveyor to collect the vibration information of the conveyor belt and send it to the controller 204. The controller 204 is configured to determine whether there is ice layer based on the vibration information. When both the laser detector 101 and the vibration sensor 102 detect the presence of ice layer on the conveyor belt, it is determined that there is ice layer on the surface of the conveyor belt.

[0010] Optionally, the second de-icing mechanism 300 further includes a collection box 303. A heating mechanism and a drainage mechanism are arranged inside the collection box 303. The collection box 303 is arranged below the scraper 301 to collect the ice cubes removed by the second de-icing mechanism 300. The heating mechanism is used to heat to melt the ice that has fallen onto the conveyor belt, and the melted ice is discharged through the drainage mechanism.

[0011] In a second aspect, an embodiment of the present invention further discloses a method for de-icing a belt conveyor. The method for de-icing a belt conveyor includes: obtaining a detection signal from a detector, where the detector is configured to detect the surface of the conveyor belt of the belt conveyor. When the detection signal indicates that the surface of the conveyor belt is frozen, controlling the pipeline assembly in the first de-icing mechanism to convey the de-icing agent from the de-icing agent storage box to the nozzle, and spraying the de-icing agent onto the frozen area of the conveyor belt through the nozzle.

[0012] Optionally, the pipeline assembly includes an electromagnetic valve. Controlling the pipeline assembly in the first de-icing mechanism to convey the de-icing agent from the de-icing agent storage box to the nozzle, and spraying the de-icing agent onto the frozen area of the conveyor belt through the nozzle includes: analyzing the detection signal to obtain the ice layer thickness of the frozen area on the conveyor belt; determining the opening degree of the electromagnetic valve according to the ice layer thickness; controlling the electromagnetic valve to work at the opening degree to convey the de-icing agent from the de-icing agent storage box to the nozzle.

[0013] In a third aspect, an embodiment of the present invention further discloses a belt conveyor, including: a conveyor belt and the de-icing device of the belt conveyor as mentioned in the above embodiment. The de-icing device is installed on one side of the lower belt surface of the conveyor belt.

[0014] An ice removal device for a belt conveyor according to an embodiment of the present invention includes: a detector 100, a first ice removal mechanism 200, and a controller 204; the first ice removal mechanism 200 includes an ice removal agent storage box 201, a pipeline assembly 202, and a nozzle 203. The nozzle 203 is arranged on one side of the lower belt surface of the belt of the belt conveyor, and the outlet of the nozzle 203 is aligned with the surface of the belt. When the detector 100 detects that there is ice on the surface of the belt, the controller 204 controls the pipeline assembly 202 to convey the ice removal agent from the ice removal agent storage box 201 to the nozzle 203, and sprays the ice removal agent onto the ice-covered area of the belt through the nozzle 203.

[0015] In this way, in the embodiment of the present invention, the detector can monitor the ice layer condition on the surface of the belt in real time. Once ice is detected, the controller 204 can quickly control the first ice removal mechanism to work and timely remove the ice on the ice-covered area, avoiding the influence of ice layer accumulation on the operation of the belt, ensuring the normal and stable operation of the belt conveyor, and reducing the downtime caused by icing. The nozzle is arranged on one side of the lower belt surface of the belt and the outlet is aligned with the surface of the belt, without contacting the surface of the belt, which can accurately spray the ice removal agent onto the ice-covered area, improve the utilization efficiency of the ice removal agent, avoid waste of the ice removal agent, and at the same time can more effectively remove the ice layer, better protect the belt while accurately removing ice, and reduce unnecessary damage to the belt. Moreover, in the embodiment of the present invention, the ice layer can be removed during the operation of the belt conveyor, without the belt conveyor being in a stopped state, which will not affect the working efficiency of the belt conveyor. In this way, the present invention improves the ice removal reliability and safety of the belt conveyor and improves the working efficiency of the belt conveyor. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic structural diagram of a belt conveyor provided by an embodiment of the present invention.

[0017] Figure 2 It is a schematic structural diagram of an ice removal device for a belt conveyor provided by an embodiment of the present invention.

[0018] Figure 3 It is a schematic structural diagram of a second ice removal mechanism provided by an embodiment of the present invention.

[0019] Figure 4 It is a schematic flow chart of an ice removal method for a belt conveyor provided by an embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] To make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with specific embodiments of the present invention and the corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0021] The technical solutions disclosed in each embodiment of the present invention will be described in detail below with reference to the drawings.

[0022] Please refer to Figures 1 to 4 , Figure 1 which is a schematic structural diagram of a belt conveyor provided by an embodiment of the present invention. Figure 2 which is a schematic structural diagram of an ice removal device of a belt conveyor provided by an embodiment of the present invention. Figure 3 which is a schematic structural diagram of a second ice removal mechanism provided by an embodiment of the present invention. Figure 4 which is a schematic flow diagram of an ice removal method for a belt conveyor provided by an embodiment of the present invention.

[0023] As Figure 1 shown, the ice removal device 10 provided by an embodiment of the present invention can be applied to the scenario of the belt conveyor shown in Figure 1 . The belt conveyor shown in Figure 1 includes a driving drum 1, a conveyor belt 2, a redirecting drum 3, and an ice removal device 10. The conveyor belt 2 moves at a speed V under the cooperation of the driving drum 1 and the redirecting drum 3. Among them, the ice removal device 10 of the belt conveyor in the embodiment of the present invention can be installed at the position shown in Figure 1 , that is, the ice removal device 10 is installed on one side of the lower belt surface of the conveyor belt 2. Of course, according to the actual application scenario, the ice removal device 10 in the embodiment of the present invention can be installed at other positions, and the embodiment of the present invention does not limit this here.

[0024] Exemplarily, as Figure 2 shown, the ice removal device 10 of the belt conveyor includes: a detector 100, a first ice removal mechanism 200, and a controller 204; the first ice removal mechanism 200 includes an ice removal agent storage box 201, a pipeline assembly 202, and a nozzle 203. The nozzle 203 is arranged on one side of the lower belt surface of the conveyor belt of the belt conveyor, and the outlet of the nozzle 203 is aligned with the surface of the conveyor belt. When the detector 100 detects that there is ice on the surface of the conveyor belt, the controller 204 controls the pipeline assembly 202 to transport the ice removal agent from the ice removal agent storage box 201 to the nozzle 203, and sprays the ice removal agent to the ice-covered area of the conveyor belt through the nozzle 203.

[0025] Specifically, in the embodiment of the present invention, the detector 100 includes, but is not limited to, a laser detector 101 and a vibration sensor 102. In the embodiment of the present invention, the laser detector 101 and the vibration sensor 102 are combined to detect the surface of the conveyor belt, thereby improving the detection accuracy and reliability. Among them, as an optional embodiment of the present invention, the laser detector 101 includes a laser emitter and a laser receiver. The laser emitter is used to emit laser pulses to the surface of the conveyor belt. After being reflected by the surface of the conveyor belt, the laser pulses return to the laser receiver. The laser receiver converts the received reflected laser signal into an electrical signal and outputs it to the controller 204. The controller 204 is used to judge whether there is ice layer according to the signal intensity of the reflected laser signal; the vibration sensor 102 is installed on the return belt idler bracket of the belt conveyor to collect the vibration information of the conveyor belt and send it to the controller 204. The controller 204 is used to judge whether there is ice layer according to the vibration information; when both the laser detector 101 and the vibration sensor 102 detect that there is ice layer on the conveyor belt, it is determined that there is ice layer on the surface of the conveyor belt.

[0026] Specifically, the main function of the laser emitter is to emit laser pulses to the surface of the conveyor belt. The laser emitter usually uses a semiconductor laser, which has the advantages of small volume, high efficiency, long life, etc. The laser emitting direction of the laser emitter is aligned with the surface of the conveyor belt to ensure that the laser pulses emitted by the laser emitter can accurately irradiate the surface of the conveyor belt. The laser receiver works in cooperation with the laser emitter and is responsible for receiving the laser signal reflected from the surface of the conveyor belt. The laser receiver usually uses a photodetector, such as a photodiode or an avalanche photodiode, etc. These detectors can efficiently convert the received optical signal into an electrical signal. When the laser signal reflected from the surface of the conveyor belt reaches the laser receiver, the photodetector inside the laser receiver will generate a corresponding current or voltage change, thereby converting the optical signal into an electrical signal. In order to improve the signal quality and anti-interference ability, a signal amplification circuit and a filtering circuit can also be equipped inside the laser receiver. The signal amplification circuit can amplify the weak electrical signal for subsequent processing; the filtering circuit can filter out external interference signals to ensure that the output electrical signal can accurately reflect the characteristics of the reflected laser signal.

[0027] Further, the laser receiver outputs the converted electrical signal to the controller 204. After receiving the converted electrical signal from the laser receiver, the controller 204 will analyze its signal intensity. The principle is that there are significant differences in the laser reflection characteristics between the ice layer on the surface of the conveyor belt and the normal surface of the conveyor belt. The surface of the ice layer is relatively smooth and has a high reflectivity, while the normal surface of the conveyor belt may have a relatively low reflectivity due to factors such as material and texture. Therefore, when there is an ice layer on the surface of the conveyor belt, the intensity of the reflected laser signal will increase significantly; on the contrary, when the surface of the conveyor belt is normal, the intensity of the reflected laser signal is relatively weak.

[0028] Further, in order to accurately determine whether there is ice on the conveyor belt surface, an embodiment of the present invention preset a signal strength threshold. This signal strength threshold can be obtained through a large number of experiments and actual tests, and the specific value thereof is not limited in the embodiment of the present invention, as long as it can distinguish the boundary of the laser signal intensity reflected by the normal conveyor belt surface and the ice-covered surface. When the intensity of the reflected laser signal received by the controller 204 exceeds the set signal strength threshold, the controller 204 determines that there is ice on the conveyor belt surface. When the intensity of the reflected laser signal is lower than the signal strength threshold, the controller 204 determines that the conveyor belt surface is normal, no deicing operation is required, and the normal monitoring state is continued.

[0029] Further, the vibration sensor 102, as an auxiliary unit for ice layer detection, is installed on the return belt idler bracket of the belt conveyor. The return idler bracket directly bears the return section of the conveyor belt, and its vibration signal can effectively reflect the operating state and surface adhesion characteristics of the conveyor belt. The vibration sensor 102 usually adopts a piezoelectric or acceleration sensor, captures the mechanical vibration of the idler bracket through a sensitive element, and converts it into an electrical signal. Among them, the vibration sensor 102 can be fixed to the rigid connection part of the idler bracket through a magnetic base or bolts to ensure a rigid coupling with the bracket and avoid signal distortion caused by loose installation. It mainly collects vibration acceleration, speed or displacement signals during the operation of the conveyor belt, and the covered frequency range is usually 10Hz - 1000Hz to cover the low-frequency stiffness change and high-frequency vibration abnormality caused by the ice layer. The cable of the vibration sensor 102 adopts shielded twisted pair wire and is configured with a hardware filter circuit to suppress environmental interferences such as motor noise and mechanical vibration and ensure the purity of the original signal.

[0030] Further, when the conveyor belt surface is frozen, the adhesion of the ice layer will significantly change the dynamic parameters of the conveyor belt, including but not limited to: change in mass distribution: the ice layer increases the local mass of the conveyor belt, resulting in a decrease in the natural frequency of the vibration system. Change in stiffness: the coupling effect between the ice layer and the conveyor belt increases the overall stiffness and changes the vibration damping characteristics. Change in contact characteristics: the contact friction between the ice-covered surface and the idler increases, which may cause periodic impact vibration. These changes will be reflected in the time-domain waveform (such as increased amplitude, changed pulse interval) and frequency-domain characteristics (such as main frequency shift, increased harmonic components) of the vibration signal, providing a discrimination basis for ice layer detection.

[0031] Further, an embodiment of the present invention collects vibration data when the conveyor belt is ice-free and running empty, and establishes a reference frequency range (such as the idler natural frequency is 50Hz ± 5Hz) and an amplitude threshold (such as peak acceleration = 0.5g).

[0032] Then, data is obtained through artificial icing experiments, and it is found that when icing occurs, the main peak frequency drops from 50Hz ± 5Hz to 40Hz ± 5Hz, the peak acceleration increases to more than 1.2g, and a low-frequency modulation component of 10 - 20Hz appears. Therefore, after receiving the real-time vibration signal output by the vibration sensor 102, if the characteristic parameters of the real-time vibration signal simultaneously satisfy that "the main peak frequency drops by more than 15% of the idler natural frequency" and "the peak acceleration exceeds the amplitude threshold", the controller 204 in the embodiment of the present invention determines that there is ice on the conveyor belt surface.

[0033] Furthermore, if both detectors detect that there is ice on the conveyor belt surface, the controller 204 will immediately control the first de-icing mechanism 200 to start working and spray the de-icing agent onto the icing area of the conveyor belt. In addition, the above two detectors can also measure the thickness of the ice layer, and the embodiment of the present invention takes the average value of the ice layer thicknesses measured by the two detectors as the actual thickness of the ice layer on the conveyor belt surface.

[0034] Furthermore, in the embodiment of the present invention, the first de-icing mechanism 200 includes a de-icing agent storage box 201, a pipeline assembly 202, and nozzles 203. The pipeline assembly 202 includes a water pump, a solenoid valve 2020, a first pipeline 2021, and a second pipeline 2022. The first pipeline 2021 is connected to the second pipeline 2022, and a plurality of nozzles are arranged at intervals on the second pipeline 2022, and the length of the second pipeline 2022 is greater than the width of the conveyor belt; the water pump is fixed inside the de-icing agent storage box 201. When the detector 100 detects that the surface of the conveyor belt is iced, the controller 204 controls the solenoid valve to actuate and starts the water pump to extract the de-icing agent from the de-icing agent storage box 201 and convey it to the first pipeline 2021. The de-icing agent enters the second pipeline 2022 through the first pipeline 2021, and the de-icing agent is sprayed onto the icing area of the conveyor belt through the plurality of nozzles 203 provided on the second pipeline 2022.

[0035] Specifically, the de-icer storage box 201 is a container made of high-strength and corrosion-resistant materials for storing de-icers, such as stainless steel or plastics with special anti-corrosion treatment. It has good sealing performance and corrosion resistance, ensuring that the de-icer will not leak or deteriorate during storage. The capacity of the de-icer storage box 201 is designed according to the scale of the belt conveyor and the actual de-icing requirements to ensure that the de-icer does not need to be replenished frequently within a certain period. The water pump is the power core of the pipeline assembly 202. It can be fixed inside the de-icer storage box 201 to reduce the vibration and noise generated during the operation of the water pump. In addition, the power of the water pump can be adjusted according to the actual thickness of the ice layer to control the flow rate of the de-icer. When the detector detects that the ice layer on the conveyor belt surface is relatively thin, it indicates that the required amount of de-icer is relatively small. At this time, the controller 204 will reduce the power of the water pump by reducing the supply voltage or current of the motor and lowering the rotation speed of the impeller, thereby reducing the pressure and flow rate generated by the water pump. The de-icer will be sprayed onto the conveyor belt surface through the first pipeline 2021, the second pipeline 2022 and the nozzle 203 at a smaller flow rate, which can not only meet the need to remove the thin ice layer, but also avoid waste of the de-icer and reduce the operating cost. If the ice layer thickness is at a medium level, the controller 204 will adjust the power of the water pump to a moderate level. At this time, the water pump will deliver the de-icer at an appropriate pressure and flow rate to ensure that the de-icer can evenly cover the ice layer surface and ensure sufficient dosage to melt the ice layer. The moderate flow rate can maintain the stable operation of the de-icing device on the premise of ensuring the de-icing effect, and avoid affecting the de-icing efficiency due to too large or too small flow rate. When the ice layer thickness exceeds a certain threshold, it indicates that the ice layer is thick and more de-icer is needed to quickly melt the ice layer. The controller 204 will increase the power of the water pump, increase the rotation speed of the motor, make the impeller rotate at a higher speed, thereby generating greater pressure and flow rate. A large amount of de-icer will quickly be sprayed onto the conveyor belt surface through the pipeline and nozzle, make full contact with the thick ice layer, accelerate the ice melting process, and significantly improve the de-icing efficiency.

[0036] Furthermore, the solenoid valve is connected to the controller 204 of the de-icing device. When receiving the instruction sent by the controller 204, the solenoid valve can be quickly and accurately opened or closed, thereby precisely controlling the flow of the de-icing agent. The solenoid valve features a fast response speed and high control precision, and can adjust the flow of the de-icing agent in a timely manner according to actual needs, avoiding waste and overspray of the de-icing agent. Among them, the solenoid valve can adopt a flow control valve. After the detector detects the actual thickness of the ice layer on the conveyor belt surface, the opening degree of the flow control valve is adjusted according to the actual thickness of the ice layer to control the flow of the de-icing agent. For example, when the actual thickness of the ice layer is greater than the threshold, the opening degree of the flow control valve is adjusted to the first opening degree. The larger opening degree enables more de-icing agent to quickly enter the first pipeline 2021 and the second pipeline 2022, and is sprayed onto the ice layer on the conveyor belt surface through the nozzle at a larger flow rate. This large-flow spraying of the de-icing agent can more quickly and fully contact the thick ice layer, accelerating the melting and peeling of the ice layer, and effectively improving the de-icing effect and efficiency. When the ice layer thickness is small, the controller 204 will reduce the opening degree of the flow control valve. The smaller flow rate can not only ensure the effective removal of the thin ice layer by the de-icing agent, but also avoid waste of the de-icing agent, achieving reasonable utilization of resources. By dynamically adjusting the flow of the de-icing agent according to the ice layer thickness in this way, the de-icing device can better adapt to different working conditions, taking into account energy conservation and cost control while ensuring the de-icing effect, and further optimizing the overall performance of the de-icing operation of the belt conveyor.

[0037] Furthermore, the first pipeline 2021 is a channel connecting the water pump and the second pipeline 2022. The first pipeline 2021 can select a pipeline with an appropriate pipe diameter according to the flow rate and pressure requirements of the water pump to ensure that the de-icing agent can flow smoothly in the pipeline and reduce pressure loss. The material of the pipeline is generally selected as corrosion-resistant and pressure-resistant metal pipes or high-strength plastic pipes to ensure the service life and safety of the pipeline.

[0038] Furthermore, the second pipeline 2022 is the last section of the de-icing agent transportation channel, and its length is greater than the width of the conveyor belt. On the second pipeline 2022, a plurality of nozzles 203 are evenly arranged at a certain interval, so as to ensure that the de-icing agent can fully cover the surface of the conveyor belt and improve the de-icing effect. The material of the second pipeline 2022 also needs to have good corrosion resistance and pressure resistance to adapt to the chemical properties and transportation pressure of the de-icing agent. At the same time, in order to ensure the uniform distribution of the de-icing agent in the second pipeline 2022, a special structural design may be adopted inside the second pipeline 2022, such as setting a flow divider or a flow guide plate, etc.

[0039] Furthermore, the nozzles 203 are key components for spraying de-icing agents. They are evenly distributed on the second pipeline 2022, and their outlets are precisely aligned with the surface of the conveyor belt. The type and parameters of the nozzles can be selected according to factors such as the properties of the de-icing agent and the material of the conveyor belt, such as fan-shaped water mist nozzles, conical water mist nozzles, etc. These nozzles can spray the de-icing agent onto the icing area of the conveyor belt in a specific shape and angle, ensuring that the de-icing agent can fully cover the ice layer and improve the de-icing efficiency. At the same time, the spraying effect of the nozzles can be optimized by adjusting parameters such as their aperture and pressure to achieve the best de-icing effect.

[0040] Furthermore, when the detector 100 detects the presence of ice on the surface of the conveyor belt, it transmits this information to the controller 204 in the form of an electrical signal. After receiving the ice layer signal transmitted by the detector 100, the controller 204 will quickly analyze and process it. According to the preset control logic and parameters, the controller 204 will send a control command to the solenoid valve to quickly open the solenoid valve and open the channel for the flow of the de-icing agent. At the same time, the controller 204 will start the water pump, and the water pump will start to run at high speed, generating a strong suction force to extract the de-icing agent from the de-icing agent storage box 201. The extracted de-icing agent quickly enters the first pipeline 2021 under the strong pressure of the water pump. When the de-icing agent flows in the first pipeline 2021, due to the resistance and pressure changes of the pipeline, certain fluctuations and pressure losses may occur. To ensure that the de-icing agent can be stably and efficiently transported to the second pipeline 2022, the first pipeline 2021 may be equipped with some auxiliary devices, such as a pressure regulating valve, a filter, etc. The pressure regulating valve can adjust the pressure in the first pipeline 2021 as needed to ensure the stable conveying pressure of the de-icing agent, and the filter can filter out impurities and particles in the de-icing agent to prevent them from blocking the second pipeline 2022 and the nozzles. After passing through the first pipeline 2021, the de-icing agent smoothly enters the second pipeline 2022. In the second pipeline 2022, the de-icing agent will be evenly distributed to each nozzle 203. Since the length of the second pipeline 2022 is greater than the width of the conveyor belt and the nozzles 203 are evenly distributed, the de-icing agent can be sprayed onto the icing area of the conveyor belt comprehensively and evenly. After the de-icing agent comes into contact with the ice layer, a chemical reaction will quickly occur, reducing the melting point of the ice and gradually melting the ice layer, thereby achieving the purpose of de-icing. When the detector 100 detects that the ice layer on the surface of the conveyor belt has completely melted, it will send a signal to the controller 204 again. After receiving the signal, the controller 204 controls the solenoid valve to close and cut off the flow channel of the de-icing agent. At the same time, the controller 204 will control the water pump to stop working, stopping the operation of the entire de-icing device.

[0041] Furthermore, to further improve the efficiency and effect of removing the ice layer on the conveyor belt, such as Figure 2As shown, as an optional embodiment of the present invention, the ice removal device of the belt conveyor further includes a second ice removal mechanism 300. Along the running direction of the conveyor belt, the first ice removal mechanism 200 and the second ice removal mechanism 300 are arranged in sequence. The second ice removal mechanism 300 includes a scraper 301 and an adjustment mechanism 302 provided on one side of the lower belt surface of the conveyor belt of the belt conveyor. The scraper 301 and the adjustment mechanism 302 are fixedly connected. In the initial state, the scraper 301 does not contact the surface of the conveyor belt. When the detector 100 detects that there is ice on the surface of the conveyor belt, the controller 204 controls the adjustment mechanism 302 to act to drive the scraper 301 close to the surface of the conveyor belt. After the scraper is in close contact with the surface of the conveyor belt, the controller 204 controls the adjustment mechanism 302 to stop acting. When the detector 100 detects that the ice on the surface of the conveyor belt has been removed, the controller 204 controls the adjustment mechanism 302 to act to drive the scraper 301 away from the surface of the conveyor belt. After the scraper 301 reaches a predetermined position, the controller 204 controls the adjustment mechanism 302 to stop acting.

[0042] Specifically, the scraper 301 is made of a highly wear-resistant material, such as high-carbon steel after quenching treatment or a low-temperature-resistant polyurethane composite material. Its shape is designed according to the cross-sectional contour of the conveyor belt, such as triangular or straight-shaped, etc. The edge part is in the shape of a moderately inclined wedge, which can efficiently scrape off the ice layer and avoid scratching the surface of the conveyor belt. The scraper 301 is installed on one side of the lower belt surface of the conveyor belt of the belt conveyor to avoid interfering with the operation of the upper belt surface carrying materials. The adjustment mechanism 302 can be in the form of an electric push rod, a hydraulic cylinder or a screw-nut mechanism, etc. The adjustment mechanism 302 and the scraper 301 are fixedly connected by high-strength bolts or welding to ensure the stability of power transmission. For example, when the adjustment mechanism 302 is an electric push rod, it includes a driving component (motor), a transmission component (gear, screw rod, push rod). The motor drives the screw rod to rotate through gear transmission, driving the push rod to expand and contract, so as to accurately control the displacement of the scraper 301.

[0043] Further, when the conveyor belt is running normally and there is no icing, the adjusting mechanism 302 maintains its initial contracted or reset state, keeping the scraper 301 at a safe distance (such as 5 - 10 millimeters) from the surface of the conveyor belt to avoid unnecessary frictional losses and not affect the normal operation of the conveyor belt. When the detector 100 detects ice on the surface of the conveyor belt, it transmits a signal to the controller 204. The controller 204 then issues an instruction to the adjusting mechanism 302 to drive it to start operating. Taking an electric push rod as an example, the push rod slowly extends, driving the scraper 301 to approach the surface of the conveyor belt smoothly. During this process, the displacement speed of the adjusting mechanism 302 can be preset by the controller 204 (such as 1 - 2 millimeters per second) to ensure that the scraper 301 gradually approaches the ice layer. When the scraper 301 is completely in contact with the surface of the conveyor belt and the pressure sensor (or current feedback) built into the adjusting mechanism 302 detects that the resistance reaches the set threshold, the controller 204 determines that the scraper is in place and then controls the adjusting mechanism 302 to stop operating. At this time, the scraper 301 uses the running friction of the conveyor belt to scrape the partially melted or loosened ice layer after the first de-icing mechanism 200 sprays de-icing agent, peeling the broken ice from the surface of the conveyor belt. When the detector 100 confirms that the ice layer on the surface of the conveyor belt has been completely removed, it feeds back a signal to the controller 204. The controller 204 again instructs the adjusting mechanism 302 to operate, driving the scraper 301 to move in the reverse direction and away from the surface of the conveyor belt. When the scraper 301 reaches the predetermined initial position (determined by a position sensor or a travel switch), the controller 204 controls the adjusting mechanism 302 to stop.

[0044] In this way, the first de-icing mechanism 200 in the embodiment of the present invention reduces the adhesion of ice by spraying de-icing agent, while the second de-icing mechanism 300 completely removes the residual ice layer by physical scraping. The combination of the two significantly improves the de-icing efficiency and the degree of de-icing. At the same time, the adjustment logic of the second de-icing mechanism 300 ensures that the scraper 301 only operates when necessary, that is, only contacts the surface of the conveyor belt when ice scraping is required, which not only protects the conveyor belt but also extends the service life of its own components and improves the reliability of the entire de-icing device.

[0045] Further, as Figure 3As shown, the adjusting mechanism 302 includes a driving component 3020, a transmission component 3021, a first limit switch (not shown in the figure) and a second limit switch (not shown in the figure). The driving component 3020 is used to drive the transmission of the transmission component 3021, and the scraper 301 is fixedly connected to the transmission component 3021. In the initial state, the scraper 301 does not contact the surface of the conveyor belt and is in a predetermined position restricted by the second limit switch. When the detector 100 detects the presence of ice on the surface of the conveyor belt, the controller 204 controls the driving component 3020 to rotate forward to drive the transmission component 3021 to drive the scraper 301 close to the surface of the conveyor belt. After the scraper is in close contact with the surface of the conveyor belt, the first limit switch operates and the controller 204 controls the driving component 3020 to stop operating. After the detector 100 detects that the ice on the surface of the conveyor belt has been removed, the controller 204 controls the driving component 3020 to rotate in reverse to drive the transmission component 3021 to drive the scraper 301 away from the surface of the conveyor belt. After the scraper 301 reaches the predetermined position, the second limit switch operates and the controller 204 controls the driving component 3020 to stop operating.

[0046] Specifically, Figure 3 The scraper 301 in it adopts a triangular structure. The driving component is the power source of the adjusting mechanism 302, and usually a motor can be used, such as a DC motor or a stepping motor. The transmission component 3021 is used to transmit the power of the driving component 3020 to the scraper 301 and realize the linear movement of the scraper 301. In the embodiment of the present invention, the transmission component 3021 includes a lead screw nut mechanism 3022 and a movable bracket 3023. The scraper 301 is fixed to the movable bracket 3023. One end of the lead screw nut mechanism 3022 is connected to the driving component 3020, and the other end of the lead screw nut mechanism 3022 is fixedly connected to the movable bracket 3023. When the driving component (motor) drives the lead screw nut mechanism 3022 to rotate, the nut cooperating with the lead screw nut mechanism 3022 will move linearly along the lead screw and drive the movable bracket 3023 to expand or fold, so that the scraper 301 approaches or moves away from the surface of the conveyor belt.

[0047] Further, the first limit switch is a position sensor for detecting whether the scraper 301 has been pressed against the surface of the conveyor belt. It is usually installed at a suitable position close to the surface of the conveyor belt. When the scraper 301 moves with the transmission component and reaches the position where it is pressed against the surface of the conveyor belt, the first limit switch will be triggered. The first limit switch will send a signal to the controller 204 to inform the controller 204 that the scraper 301 has reached the specified position. The type of the limit switch can be mechanical, photoelectric, inductive, etc. The second limit switch is also a position sensor for detecting whether the scraper 301 has returned to the initial predetermined position. It is installed at the initial position of the scraper 301. When the scraper 301 moves back to the predetermined position with the transmission component under the action of the reverse rotation of the driving component, the second limit switch will be triggered. The second limit switch will send a signal to the controller 204 indicating that the scraper 301 has returned to the initial position. At this time, the controller 204 will control the driving component to stop operating.

[0048] Further, in the initial state, the conveyor belt is running normally and there is no ice layer on its surface. At this time, the scraper 301 is not in contact with the surface of the conveyor belt and is in the predetermined position restricted by the second limit switch. The driving component is in a stopped state, and the entire adjustment mechanism 302 is in a standby state, waiting for the ice layer detection signal sent by the detector 100. When the detector 100 detects that there is an ice layer on the surface of the conveyor belt, it will transmit this signal to the controller 204. After receiving the signal, the controller 204 will send a forward rotation instruction to the driving component. The driving component starts to work and drives the transmission component to transmit. Since the scraper 301 is fixedly connected to the transmission component, the scraper 301 will approach the surface of the conveyor belt with the transmission component. During this process, the driving component operates at a set speed to ensure that the scraper 301 approaches the surface of the conveyor belt smoothly and slowly, avoiding damage to the conveyor belt due to excessive speed. When the scraper 301 is pressed against the surface of the conveyor belt, the first limit switch will be triggered. The first limit switch transmits the signal to the controller 204. After receiving the signal, the controller 204 immediately controls the driving component to stop operating. At this time, the scraper 301 maintains the state of being pressed against the surface of the conveyor belt and scrapes the ice layer as the conveyor belt runs. When the detector 100 detects that the ice layer on the surface of the conveyor belt has been removed, it will send a signal to the controller 204 again. After receiving the signal, the controller 204 sends a reverse rotation instruction to the driving component. The driving component starts to reverse and drives the transmission component to transmit in the reverse direction, so that the scraper 301 moves away from the surface of the conveyor belt. The scraper 301 moves towards the initial position at a set speed under the drive of the transmission component. When the scraper 301 reaches the predetermined initial position, the second limit switch will be triggered. The second limit switch transmits the signal to the controller 204. After receiving the signal, the controller 204 controls the driving component to stop operating. At this time, the scraper 301 returns to the initial position, and the adjustment mechanism 302 enters the standby state again, waiting for the next deicing task.

[0049] In this way, through the coordinated operation of the driving component, transmission component, first limit switch, and second limit switch in the adjustment mechanism 302 in the embodiments of the present invention, the position of the scraper 301 can be accurately controlled, enabling efficient and safe ice removal operations, while protecting the conveyor belt from unnecessary damage and extending the service life of the conveyor belt.

[0050] Further, as another alternative embodiment of the present invention, the adjustment mechanism 302 includes a bracket, a telescopic component, a first limit switch, and a second limit switch. One end of the telescopic component is fixedly connected to the bracket, and the scraper 301 is fixedly connected to the other end of the telescopic component; in the initial state, the scraper 301 does not contact the surface of the conveyor belt. When the detector 100 detects the presence of ice on the surface of the conveyor belt, the controller 204 controls the piston rod of the telescopic component to extend to drive the scraper 301 closer to the surface of the conveyor belt. After the scraper is in close contact with the surface of the conveyor belt, the first limit switch operates and the controller 204 controls the telescopic component to stop operating; when the detector 100 detects that the ice on the surface of the conveyor belt has been removed, the controller 204 controls the piston rod of the telescopic component to retract to drive the scraper 301 away from the surface of the conveyor belt. After the scraper 301 reaches a predetermined position, the second limit switch operates and the controller 204 controls the telescopic component to stop operating.

[0051] Specifically, the bracket is the basic support structure of the adjustment mechanism 302, made of high-strength metal materials such as stainless steel or carbon steel. It is firmly installed at a suitable position on the belt conveyor, providing a stable fixed point for the telescopic component. The bracket fully considers the force conditions of the entire adjustment mechanism 302, having sufficient strength and stiffness to withstand various forces generated during the movement of the telescopic component, ensuring that it will not deform or displace during long-term use, thereby ensuring the movement accuracy of the scraper 301. The telescopic component is the core execution component for the adjustment mechanism 302 to adjust the position of the scraper 301. Common telescopic components are hydraulic cylinders or electric push rods, etc. Taking a hydraulic cylinder as an example, it mainly consists of a cylinder body, a piston rod, seals, etc. The cylinder body is firmly connected to the bracket by bolts or welding. The scraper 301 is connected to one end of the piston rod, and the piston rod can perform linear reciprocating motion in the cylinder body to drive the scraper 301 away from or closer to the conveyor belt. When the hydraulic system injects pressure oil into the cylinder, the piston rod will extend; when the pressure oil is discharged, the piston rod will retract to drive the scraper 301 away from or closer to the conveyor belt.

[0052] Further, in the initial state, the conveyor belt runs normally and there is no ice layer on its surface. At this time, the piston rod of the telescopic member is in the retracted state, the scraper 301 is not in contact with the surface of the conveyor belt, and is in a predetermined position restricted by the second limit switch. The second limit switch is in the triggered state and sends a signal to the controller 204 that the scraper 301 is in the initial position. The entire adjustment mechanism 302 is in a standby state, waiting for the detector 100 to send an ice layer detection signal. When the detector 100 detects that there is an ice layer on the surface of the conveyor belt, it will transmit this signal to the controller 204. After receiving the signal, the controller 204 will send an instruction to the control device of the telescopic member (such as the solenoid valve of the hydraulic system) to control the piston rod of the telescopic member to extend. The extension speed of the piston rod can be set according to the actual situation, and the embodiments of the present invention do not limit this here, so as to ensure that the scraper 301 approaches the surface of the conveyor belt smoothly and slowly, avoiding damage to the conveyor belt due to too fast a speed. As the piston rod extends, the scraper 301 will gradually approach the surface of the conveyor belt. When the scraper 301 is in close contact with the surface of the conveyor belt, the first limit switch will be triggered. The first limit switch transmits the signal to the controller 204. After receiving the signal, the controller 204 immediately sends a stop instruction to the control device of the telescopic member to control the telescopic member to stop operating. At this time, the scraper 301 remains in a state of being in close contact with the surface of the conveyor belt, and as the conveyor belt runs, the ice layer is scraped off. When the detector 100 detects that the ice layer on the surface of the conveyor belt has been removed, it will send a signal to the controller 204 again. After receiving the signal, the controller 204 sends an instruction to the control device of the telescopic member to control the piston rod of the telescopic member to retract. The piston rod retracts at the set speed, driving the scraper 301 away from the surface of the conveyor belt. When the scraper 301 reaches the predetermined initial position, the second limit switch will be triggered. The second limit switch transmits the signal to the controller 204. After receiving the signal, the controller 204 sends a stop instruction to the control device of the telescopic member to control the telescopic member to stop operating. At this time, the scraper 301 returns to the initial position, and the adjustment mechanism 302 enters the standby state again, waiting for the next de-icing task.

[0053] In this way, through the coordinated operation of the bracket, telescopic member, first limit switch and second limit switch in the adjustment mechanism 302 of the embodiments of the present invention, the position of the scraper 301 can be accurately controlled, efficient and safe de-icing operations can be achieved, while protecting the conveyor belt from unnecessary damage and extending the service life of the equipment.

[0054] Further, as an optional embodiment of the present invention, the second de-icing mechanism 300 further includes a collection box 303. A heating mechanism and a drainage mechanism are arranged inside the collection box 303; the collection box 303 is arranged below the scraper 301 to collect the ice cubes removed by the second de-icing mechanism 300. The heating mechanism is used to heat to melt the ice that falls on the conveyor belt and is discharged through the drainage mechanism.

[0055] Specifically, the collection box 303 in the second de-icing mechanism 300 is placed directly below the scraping plate 301 to receive the ice cubes scraped by the scraping plate, preventing the ice cubes from scattering and accumulating, ensuring the cleanliness of the surrounding environment of the belt conveyor and the safe operation of the equipment. The collection box 303 integrates a heating mechanism and a drainage mechanism inside. The heating mechanism can adopt methods such as electric heating wires, heat-conducting oil circulation heating, or infrared heating. Taking the electric heating wires as an example, they are evenly inlaid on the inner wall of the collection box. When the ice cubes fall in, the controller 204 triggers a heating instruction, and the electric heating wires quickly heat up, melting the ice cubes through heat conduction. This heating method has a rapid temperature rise and precise temperature control, and can adjust the power according to the amount of ice cubes and the ambient temperature, taking into account both efficiency and energy consumption. The drainage mechanism consists of a water pump, a drainage pipe, and an intelligent control valve. When the melted water after heating reaches the set water level (monitored by a water level sensor), the controller 204 starts the water pump, and the melted water is discharged through the drainage pipe. The main body of the collection box can be made of stainless steel, which has corrosion resistance and strength, can withstand sudden temperature changes and ice cube impacts, and extends the service life of the equipment. The inner wall can be a smooth inclined plane to guide the ice cubes to slide towards the heating area and accelerate melting.

[0056] Based on the same inventive concept, an embodiment of the present invention provides a de-icing method for a belt conveyor. Figure 4 As a schematic flow chart of the de-icing method for a belt conveyor provided by the present invention, based on the de-icing device of the belt conveyor in the above embodiment, as Figure 4 shown, the de-icing method for a belt conveyor includes: Step S401, obtaining a detection signal of a detector, where the detector is used to detect the surface of the conveyor belt of the belt conveyor.

[0057] Step S402, when the detection signal indicates that the surface of the conveyor belt is frozen, controlling the pipeline assembly in the first de-icing mechanism to transport the de-icing agent from the de-icing agent storage box body to the nozzle, and spraying the de-icing agent to the frozen area of the conveyor belt through the nozzle.

[0058] Further, as an optional embodiment of the present invention, the pipeline assembly includes a solenoid valve. Controlling the pipeline assembly in the first de-icing mechanism to transport the de-icing agent from the de-icing agent storage box body to the nozzle, and spraying the de-icing agent to the frozen area of the conveyor belt through the nozzle includes: analyzing the detection signal to obtain the ice layer thickness of the frozen area on the conveyor belt; determining the opening degree of the solenoid valve according to the ice layer thickness; controlling the solenoid valve to work at the opening degree to transport the de-icing agent from the de-icing agent storage box body to the nozzle.

[0059] Further, as an optional embodiment of the present invention, the pipeline assembly includes a water pump. Controlling the pipeline assembly in the first de-icing mechanism to transport the de-icing agent from the de-icing agent storage box to the nozzle, and spraying the de-icing agent onto the icing area of the conveyor belt through the nozzle includes: analyzing the detection signal to obtain the ice layer thickness of the icing area on the conveyor belt; determining the target power of the water pump according to the ice layer thickness; controlling the water pump to work at the target power to transport the de-icing agent from the de-icing agent storage box to the nozzle.

[0060] The de-icing method of the belt conveyor provided by the embodiment of the present invention and the de-icing device of the belt conveyor provided by the above embodiment belong to the same inventive concept. The same or similar parts in terms of technical content and beneficial effects can be referred to each other, and the embodiments of the present invention will not be described in detail here.

[0061] Based on the same inventive concept, the embodiment of the present invention provides a belt conveyor, including: a conveyor belt and the de-icing device of the belt conveyor mentioned in the above embodiment, and the de-icing device is installed on one side of the lower belt surface of the conveyor belt.

[0062] The belt conveyor provided by the embodiment of the present invention and the de-icing device of the belt conveyor provided by the above embodiment belong to the same inventive concept. The same or similar parts in terms of technical content and beneficial effects can be referred to each other, and the embodiments of the present invention will not be described in detail here.

[0063] In the above embodiments of the present invention, the differences between the embodiments are mainly described. As long as the different optimization features between the embodiments are not contradictory, they can be combined to form a more optimal embodiment. Considering the simplicity of the text, it will not be described in detail here.

[0064] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Under the inspiration of the present invention, those of ordinary skill in the art can also make many forms without departing from the spirit and scope protected by the claims of the present invention, and all of them belong to the protection scope of the present invention.

Claims

1. A deicing device for a belt conveyor, characterized in that: include: A detector (100), a first de-icing mechanism (200), and a controller (204); The first deicing mechanism (200) comprises a deicing agent storage box (201), a pipeline assembly (202) and a nozzle (203); the nozzle (203) is arranged on one side of the lower belt surface of the conveyor belt of the belt conveyor, and the outlet of the nozzle (203) is aligned with the surface of the conveyor belt; When the detector (100) detects the presence of an ice layer on the surface of the conveyor belt, the controller (204) controls the pipeline assembly (202) to transport the deicing agent from the deicing agent storage box (201) to the nozzle (203), and sprays the deicing agent onto the icing area of ​​the conveyor belt through the nozzle (203).

2. The deicing device for a belt conveyor according to claim 1, characterized in that: The deicing device of the belt conveyor further comprises a second deicing mechanism (300), and along the running direction of the conveyor belt, the first deicing mechanism (200) and the second deicing mechanism (300) are arranged in sequence; The second deicing mechanism (300) comprises a scraper (301) and an adjustment mechanism (302) arranged on one side of the lower belt surface of the conveyor belt of the belt conveyor, wherein the scraper (301) and the adjustment mechanism (302) are fixedly connected; In an initial state, the scraper (301) is not in contact with the surface of the conveyor belt. When the detector (100) detects that there is an ice layer on the surface of the conveyor belt, the controller (204) controls the adjustment mechanism (302) to operate so as to drive the scraper (301) to approach the surface of the conveyor belt. After the scraper and the surface of the conveyor belt are in close contact, the controller (204) controls the adjustment mechanism (302) to stop operating. After the detector (100) detects that the ice layer on the surface of the conveyor belt has been removed, the controller (204) controls the adjustment mechanism (302) to operate so as to drive the scraper (301) away from the surface of the conveyor belt, and after the scraper (301) reaches a predetermined position, the controller (204) controls the adjustment mechanism (302) to stop operating.

3. The deicing device for a belt conveyor according to claim 2, characterized in that: The regulating mechanism (302) comprises a driving component (3020), a transmission component (3021), a first limit switch and a second limit switch, the driving component (3020) is used to drive the transmission component (3021) to transmit, and the scraper (301) is fixedly connected to the transmission component (3021); In an initial state, the scraper (301) is not in contact with the surface of the conveyor belt and is in a predetermined position limited by the second limit switch. When the detector (100) detects that there is an ice layer on the surface of the conveyor belt, the controller (204) controls the driving component (3020) to rotate forward to drive the transmission component (3021) to drive the scraper (301) close to the surface of the conveyor belt. After the scraper (301) is in close contact with the surface of the conveyor belt, the first limit switch is activated and the controller (204) controls the driving component (3020) to stop. After the detector (100) detects that the ice layer on the surface of the conveyor belt has been removed, the controller (204) controls the driving component (3020) to reverse to drive the transmission component (3021) to drive the scraper (301) away from the surface of the conveyor belt, and after the scraper (301) reaches a predetermined position, the second limit switch is activated and the controller (204) controls the driving component (3020) to stop.

4. The deicing device for a belt conveyor according to claim 2, characterized in that: The adjustment mechanism (302) comprises a bracket, a telescopic component, a first limit switch and a second limit switch; one end of the telescopic component is fixedly connected to the bracket, and the scraper (301) is fixedly connected to the other end of the telescopic component; In an initial state, the scraper (301) is not in contact with the surface of the conveyor belt. When the detector (100) detects that there is an ice layer on the surface of the conveyor belt, the controller (204) controls the piston rod of the telescopic component to extend to drive the scraper (301) to approach the surface of the conveyor belt. After the scraper is in close contact with the surface of the conveyor belt, the first limit switch is actuated and the controller (204) controls the telescopic component to stop moving. After the detector (100) detects that the ice layer on the surface of the conveyor belt has been removed, the controller (204) controls the piston rod of the telescopic component to retract so as to drive the scraper (301) away from the surface of the conveyor belt, and after the scraper (301) reaches a predetermined position, the second limit switch is actuated and the controller (204) controls the telescopic component to stop moving.

5. The deicing device for a belt conveyor according to claim 2, characterized in that: The second deicing mechanism (300) further comprises a collection box (303), wherein a heating mechanism and a drainage mechanism are arranged inside the collection box; The collection box (303) is arranged below the scraper (301) to collect ice cubes removed by the second deicing mechanism (300), and the heating mechanism is used to heat and melt the ice that falls on the conveyor belt and discharge it through the drainage mechanism.

6. The deicing device for a belt conveyor according to claim 1, characterized in that: The pipeline assembly (202) comprises a water pump, a solenoid valve (2020), a first pipeline (2021), and a second pipeline (2022), the first pipeline (2021) being connected to the second pipeline (2022), a plurality of nozzles (203) being arranged at intervals on the second pipeline (2022), and the length of the second pipeline (2022) being greater than the width of the conveyor belt; The water pump is fixed inside the deicing agent storage box (201). When the detector (100) detects that ice has formed on the surface of the conveyor belt, the controller (204) controls the solenoid valve (220) to operate and starts the water pump to extract deicing agent from the deicing agent storage box (201) and transport it to the first pipe (2021). The deicing agent enters the second pipe (2022) through the first pipe (221) and is sprayed onto the iced area of ​​the conveyor belt through the plurality of nozzles (203) arranged in the second pipe (2022).

7. The deicing device for a belt conveyor according to claim 1, characterized in that: The detector (100) comprises a laser detector (101) and a vibration sensor (102); The laser detector (101) comprises a laser transmitter and a laser receiver, wherein the laser transmitter is used to transmit laser pulses to the surface of the conveyor belt, which are reflected by the surface of the conveyor belt and then returned to the laser receiver, and the laser receiver converts the received reflected laser signal into an electrical signal and outputs it to the controller (204), and the controller (204) is used to determine whether an ice layer exists according to the signal strength of the reflected laser signal; The vibration sensor (102) is installed on the return belt roller bracket of the belt conveyor to collect vibration information of the conveyor belt and send it to the controller (204), and the controller (204) is used to determine whether an ice layer exists based on the vibration information; When both the laser detector (101) and the vibration sensor (102) detect the presence of an ice layer on the conveyor belt, it is determined that an ice layer exists on the surface of the conveyor belt.

8. A method for deicing a belt conveyor, characterized in that: Based on the deicing device for a belt conveyor according to any one of claims 1 to 7, the deicing method for the belt conveyor comprises: Acquiring a detection signal of a detector, wherein the detector is used to detect the surface of a conveyor belt of the belt conveyor; When the detection signal indicates that the surface of the conveyor belt is frozen, the pipeline assembly in the first deicing mechanism is controlled to transport the deicing agent from the deicing agent storage tank to the nozzle, and the deicing agent is sprayed onto the frozen area of ​​the conveyor belt through the nozzle.

9. The deicing method for a belt conveyor according to claim 8, characterized in that: The pipeline assembly includes a solenoid valve, and the control of the pipeline assembly in the first deicing mechanism to transport the deicing agent from the deicing agent storage box to the nozzle, and spraying the deicing agent to the icing area of ​​the conveyor belt through the nozzle includes: Analyzing the detection signal to obtain the thickness of ice layer in the icing area on the conveyor belt; determining the opening of the solenoid valve according to the thickness of the ice layer; The solenoid valve is controlled to operate at the opening degree to deliver the deicing agent from the deicing agent storage tank to the nozzle.

10. A belt conveyor, characterized in that: include: A conveyor belt and a deicing device for a belt conveyor as claimed in any one of claims 1 to 7, wherein the deicing device is installed on one side of the lower belt surface of the conveyor belt.

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