Material temperature control system and method for grab ship unloader

Abstract

The invention provides a grab ship unloader material temperature control system and method, and the system comprises a feeding mechanism which is used for receiving materials unloaded by a grab and conveying the materials to a wharf belt conveyor; the material temperature monitoring unit is used for monitoring the temperature of the materials in the cabin, the hopper and the material conveying chute in real time; the material temperature control unit is used for cooling the high-temperature materials in the hopper area and at the discharge port of the material conveying chute; and the PLC control unit is used for receiving data of the material temperature monitoring unit and controlling the feeding mechanism and the material temperature control unit to operate. According to the invention, the temperature of bulk materials unloaded by the grab ship unloader in a cabin, a hopper, a material conveying chute and other material conveying paths of the grab ship unloader can be monitored in real time. And when the temperature is abnormal, the bulk materials can be cooled and controlled through the physical cooling means of water spraying, fire accidents are avoided, and the overall safety performance of the equipment is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of ship loading and unloading, and in particular to a material temperature control system and method for a grab ship unloader. Background Art

[0002] Grab ship unloaders are essential equipment for bulk cargo loading and unloading operations at ports. They are widely used at various terminals for the efficient unloading of various bulk cargoes such as ore and coal, providing key support for the transshipment and transportation of cargo.

[0003] Existing bulk cargo unloading operations primarily rely on grab ship unloaders to transfer materials from the ship's hold to the dock's belt conveyors. When unloading bulk cargoes like coal, due to the inherent characteristics of these materials and the influence of ambient temperature, heat accumulation can easily occur during closed transport within the ship's hold, and even the occurrence of open flames after the hold is opened. If bulk cargo unloading operations are carried out without effective monitoring, hot or flammable materials will be transported through the grab ship unloader's hopper mechanism and feeding structure to the dock's belt conveyors, posing a series of safety hazards.

[0004] Existing bulk material unloading methods have significant shortcomings in addressing these risks. On the one hand, there is a lack of real-time monitoring measures for material temperatures at key locations along the grab ship unloader's material transport path, such as the ship's hold, hopper, and feed chute. On the other hand, even if temperature anomalies are detected, it is difficult to quickly implement effective physical cooling measures, making it impossible to quickly control material temperature and avoid fire accidents. This greatly limits the safety and reliability of grab ship unloader operations. A system specifically designed for grab ship unloader material temperature monitoring and control is urgently needed to address these issues. Summary of the Invention

[0005] In response to the aforementioned technical challenges of temperature monitoring during existing bulk material unloading operations, a material temperature control system and method for a grab ship unloader is provided. The present invention monitors the temperature of bulk materials unloaded by the grab ship unloader in real time, including within the ship's hold, hopper, and chute, along the material transport path of the grab ship unloader, to eliminate potential safety hazards.

[0006] The technical means adopted in the present invention are as follows:

[0007] A material temperature control system for a grab ship unloader, comprising:

[0008] The feeding mechanism is used to receive the materials unloaded by the grab bucket and transfer the materials to the belt conveyor at the dock;

[0009] Material temperature monitoring unit, used to monitor the material temperature in the cabin, hopper and conveying chute in real time;

[0010] Material temperature control unit, used to cool down high-temperature materials in the hopper area and at the discharge port of the conveying chute;

[0011] The PLC control unit is used to receive data from the material temperature monitoring unit and control the operation of the feeding mechanism and the material temperature control unit.

[0012] Furthermore, the feeding mechanism includes a hopper mechanism and a feeding mechanism;

[0013] A material discharge port is provided at the lower portion of the hopper mechanism, and a feeding mechanism is provided below the material discharge port; the feeding mechanism includes a vibrating feeder and a conveying chute, the vibrating feeder is provided above the conveying chute, and the conveying chute is provided above the wharf belt conveyor.

[0014] Furthermore, the material temperature monitoring unit includes a first temperature sensing detection element, a second temperature sensing detection element, a first infrared thermal imaging camera, and a second infrared thermal imaging camera;

[0015] The first temperature sensing element is installed on the lower side wall of the hopper mechanism, the second temperature sensing element is installed on the inner wall of the conveying chute, the first infrared thermal imaging camera is installed in the middle of the grab ship unloader arm, and the second infrared thermal imaging camera is installed on the side of the front shoulder beam;

[0016] The first temperature sensing element, the second temperature sensing element, the first infrared thermal imaging camera and the second infrared thermal imaging camera are respectively connected to the PLC module.

[0017] Furthermore, the material temperature control unit includes a first water spray valve, a second water spray valve, a water storage tank and a water spray pump;

[0018] The first water spray valve is installed on the inner side wall of the hopper mechanism, the second water spray valve is installed between the feed chute and the dock belt conveyor, the water storage tank and the sprinkler pump are arranged on the feeding platform of the grab ship unloader, and the sprinkler pump, the first water spray valve and the second water spray valve are connected to the PLC module.

[0019] Furthermore, the PLC control unit includes a PLC module, a Profinet communication module, a DI module and a DO module installed in the PLC room of the grab ship unloader;

[0020] The PLC module receives data from the infrared thermal imaging camera in the material temperature monitoring unit and controls the drive of the vibrating feeder in the feeding mechanism through the Profinet communication module and the Prifinet bus protocol;

[0021] The PLC module receives the data of the temperature detection element in the material temperature monitoring unit through the DI module in a hard-wired manner;

[0022] The PLC module controls the sprinkler pump and the water spray valve in the material temperature control unit through the DO module in a hard-wired manner.

[0023] The present invention also provides a grab bucket ship unloader material temperature control method, which is implemented based on any of the grab bucket ship unloader material temperature control systems described above and includes the following steps:

[0024] S1. Ship unloading operation begins and the material temperature control system of the grab ship unloader is started;

[0025] S2. The sprinkler pump in the material temperature control unit starts to provide water pressure for the sprinkler pipes;

[0026] S3. The material temperature monitoring unit starts real-time monitoring of the material temperature in the cabin, hopper, and conveying chute;

[0027] S4, the vibrating feeder in the feeding mechanism starts to feed materials to the wharf belt conveyor;

[0028] S5. In a single operation cycle, when the material temperature monitoring unit detects that the material temperature in the operation area in the cabin is too high, the material temperature monitoring and management system will issue an alarm;

[0029] S6, delay T 船 After the time has passed, the first water spray valve in the material temperature control unit is opened to control the temperature of the material in the hopper. The water spraying working time is T 船控 ;

[0030] S7. In a single operation cycle, when the material temperature monitoring unit detects that the material temperature in the hopper is too high, the material temperature monitoring and management system will issue an alarm;

[0031] S8. Immediately open the first water spray valve in the material temperature control unit to control the temperature of the material in the hopper until the monitoring result of the material temperature in the hopper by the material temperature monitoring unit returns to normal;

[0032] S9. In a single operation cycle, when the material temperature monitoring unit detects that the material temperature in the conveying chute is too high, the material temperature monitoring and management system will issue an alarm;

[0033] S10. Immediately open the second water spray valve in the material temperature control unit to control the temperature of the material flowing out of the feeding chute until the monitoring result of the material temperature monitoring unit on the material temperature in the feeding chute returns to normal;

[0034] S11, repeating S5 to S10 in the subsequent unloading operation cycle until the unloading operation is completed;

[0035] S12: The material temperature control system of the grab ship unloader stops.

[0036] Furthermore, in S6:

[0037] T 船 =H 码头 / V 起升 +S 中 / V 小车

[0038] Among them, T 船 The time required to detect abnormal temperature in the cabin and start temperature control of the material in the hopper; H 码头 V is the distance from the dock to the upper stop position of the lift; 起升 is the maximum operating speed of the lifting mechanism; S 中 V is the horizontal distance from the center of the cabin to the center of the hopper; 小车 is the maximum operating speed of the trolley mechanism;

[0039] T 船控 =60*W 载荷 / (E 额定 *(V 给料 / V 额定 ))

[0040] Among them, T 船控 To stabilize the duration of sprinkler spraying; W 载荷 E is the rated load of the material currently grabbed by the grab; 额定 is the rated unloading capacity of the grab ship unloader; V 给料 V is the running speed of the vibration feeder in the current feeding mechanism; 额定 It is the maximum operating speed of the vibrating feeder in the feeding mechanism.

[0041] Compared with the prior art, the present invention has the following advantages:

[0042] The present invention can monitor the temperature of bulk materials unloaded by the grab ship unloader in real time in the ship cabin, hopper, conveying chute and other places on the material conveying path of the grab ship unloader. When abnormal temperature occurs, the bulk materials can be cooled and controlled by physical cooling means such as water spraying, thereby avoiding the occurrence of fire accidents, improving the overall safety performance of the equipment, and greatly increasing the market core competitiveness of the grab ship unloader products. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0044] Figure 1 This is a system framework diagram of the present invention.

[0045] Figure 2 It is a schematic diagram of the feeding mechanism of the present invention.

[0046] Figure 3 Schematic diagram of the material temperature monitoring unit of the present invention.

[0047] Figure 4 Schematic diagram of the material temperature control unit of the present invention.

[0048] Figure 5 This is the wiring diagram of the PLC control unit of the present invention.

[0049] Figure 6 This is a flow chart of the control method of the present invention.

[0050] In the figure: 1. Hopper mechanism; 2. Material discharge port; 3. Feeding mechanism; 4. Vibrating feeder; 5. Feed chute; 6. Wharf belt conveyor; 7. First temperature sensing element; 8. Second temperature sensing element; 9. First infrared thermal imaging camera; 10. Second infrared thermal imaging camera; 11. First water spray valve; 12. Second water spray valve; 13. Water storage tank; 14. Sprinkler pump; 15. Hopper side wall; 16. Boom; 17. Front shoulder beam. DETAILED DESCRIPTION

[0051] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0052] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0053] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0054] Unless otherwise specifically stated, the relative arrangement of the parts and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be clear that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be considered as part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, and therefore, once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0055] In the description of the present invention, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention: the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0056] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below their position devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0057] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0058] like Figure 1-5 As shown, the present invention provides a material temperature control system for a grab ship unloader, comprising:

[0059] The feeding mechanism is used to receive the materials unloaded by the grab bucket and transfer the materials to the wharf belt conveyor; the feeding mechanism can realize the start, stop and speed regulation functions of the transmission material flow.

[0060] The material temperature monitoring unit, based on infrared thermal imaging technology and temperature sensing element technology, monitors the material temperature in the cabin, hopper, and conveying chute in real time;

[0061] The material temperature control unit uses a physical cooling method such as water spraying to cool down the high-temperature materials in the hopper area and the discharge port of the conveying chute;

[0062] The PLC control unit is used to receive data from the material temperature monitoring unit and control the operation of the feeding mechanism and the material temperature control unit.

[0063] like Figure 2As shown, the feeding mechanism consists of a hopper mechanism 1 and a feeding mechanism 3. The hopper mechanism 1 is a large steel hopper that receives material unloaded by the grab bucket. A material outlet 2 is located below the hopper mechanism 1, through which the material can slide down to the feeding mechanism 3 below the hopper. The hopper sidewall 15 of the hopper mechanism 1 is equipped with a first water spray valve 11 from the material temperature control unit. This first water spray valve 11 sprays water into the hopper interior, physically cooling the material. The first temperature sensing element 7 from the material temperature monitoring unit is installed on the inclined wall below the hopper mechanism 1 for real-time monitoring of the material temperature inside the hopper. The feeding mechanism 3 consists of a vibrating feeder 4 and a conveying chute 5. The vibrating feeder 4 evenly conveys the material that slides down from the hopper material outlet 2 into the conveying chute 5. The PLC module in the PLC control unit controls the vibrating feeder 4 via the Profinet bus, enabling the start, stop, and speed regulation of the feeding flow. The feed chute 5 is used to evenly transfer the material flow to the terminal belt conveyor 6. The inner wall of the feed chute 5 is equipped with a second temperature sensing element 8 from the material temperature monitoring unit for real-time monitoring of the material flow temperature within the feed chute 5. A second water spray valve 12 from the material temperature control unit is installed between the lower portion of the feed chute 5 and above the discharge port of the terminal belt conveyor 6. This second water spray valve 12 sprays water onto the outflowing material, achieving physical cooling of the material.

[0064] like Figure 3 As shown, the material temperature monitoring unit consists of an infrared thermal imaging camera and a temperature detection element. The first infrared thermal imaging camera 9 is installed in the middle of the grab unloader boom 16, and the second infrared thermal imaging camera 10 is installed on the side of the front shoulder beam 17. The first infrared thermal imaging camera 9 is used to perform real-time thermal imaging monitoring of the material in the cabin below the boom 16, and the second infrared thermal imaging camera 10 is used to perform real-time thermal imaging monitoring of the material in the hopper below. Once the infrared thermal imaging camera detects that the material temperature in the operating area exceeds the set threshold, it transmits an alarm signal to the PLC module in the PLC control unit via the Profinet bus. The temperature detection element is installed on the lower inclined wall of the hopper mechanism 1 in the feeding mechanism and the inner wall of the feed chute 5, respectively, to monitor the temperature of the material inside the hopper and the feed chute in real time. Once the temperature detection element detects that the material temperature is too high, it transmits an alarm signal to the PLC module in the PLC control unit via hard wiring.

[0065] like Figure 4As shown, the material temperature control unit consists of a water tank 13, a sprinkler pump 14, a first water spray valve 11, and a second water spray valve 12. The water tank 13 and the sprinkler pump 14 are located on the grab ship unloader's feed platform. The water tank 13 stores water for spraying, while the sprinkler pump 14 is controlled by a PLC module within the PLC control unit to provide the required water pressure for spraying. The first water spray valve 11 is mounted on the sidewall of the hopper mechanism 1, and the second water spray valve 12 is installed above the discharge port from the lower portion of the feed chute 5 to the dock belt conveyor 6. These valves can respectively spray water to cool the material inside the hopper and the material flowing out of the feed chute discharge port. The opening and closing of the water spray valves are controlled by the PLC module within the PLC control unit.

[0066] like Figure 5 As shown, the PLC control unit consists of a PLC module, a Profinet communication module, a DI module, and a DO module installed in the grab ship unloader's PLC room. The PLC module uses the Profinet bus protocol to receive data from the infrared thermal imaging camera in the material temperature monitoring unit and control the vibrating feeder in the feeding mechanism. The PLC receives data from the temperature sensor in the material temperature monitoring unit through the DI module using hardwiring. The PLC also controls the sprinkler pump and water valve in the material temperature control unit through hardwiring using the DO module.

[0067] like Figure 6 As shown in FIG, a specific control method of a material temperature control system of a grab ship unloader is as follows:

[0068] S1. Start unloading operation and start the material temperature control system of grab ship unloader.

[0069] S2. The sprinkler pump in the material temperature control unit starts to provide water pressure for the sprinkler pipes.

[0070] S3. The material temperature monitoring unit starts real-time monitoring of the material temperature in the cabin, hopper and conveying chute.

[0071] S4. The vibrating feeder in the feeding mechanism starts to feed materials to the wharf belt conveyor.

[0072] S5. In a single operation cycle, when the material temperature monitoring unit detects that the material temperature in the operation area in the cabin is too high, the material temperature monitoring and management system will issue an alarm.

[0073] S6, delay T 船 After the time has passed, the water spray valve on the side wall of the hopper in the material temperature control unit is opened to control the temperature of the material in the hopper. The water spraying working time is T 船控 Where T 船 and T 船控The calculation method is as follows:

[0074] T 船 =H 码头 / V 起升 +S 中 / V 小车

[0075] Among them, T 船 The time required to detect abnormal temperature in the cabin and start temperature control of the material in the hopper, in minutes; H 码头 V is the distance from the dock to the upper stop position of the hoist, in m; 起升 is the maximum operating speed of the lifting mechanism, in m / min; S 中 V is the horizontal distance from the center of the cabin to the center of the hopper, in meters; 小车 It is the maximum operating speed of the trolley mechanism, in m / min.

[0076] T 船控 =60*W 载荷 / (E 额定 *(V 给料 / V 额定 ))

[0077] Among them, T 船控 The duration of the sprinkler spray stability control is in min; W 载荷 is the rated load of the material currently grabbed by the grab, in t; E 额定 is the rated unloading capacity of the grab ship unloader, in t / h; V 给料 V is the running speed of the vibration feeder in the current feeding mechanism, in rpm; 额定 It is the maximum operating speed of the vibrating feeder in the feeding mechanism, in rpm.

[0078] S7. In a single operation cycle, when the material temperature monitoring unit detects that the material temperature in the hopper is too high, the material temperature monitoring and management system will issue an alarm.

[0079] S8. Immediately open the water spray valve on the side wall of the hopper in the material temperature control unit to control the temperature of the material in the hopper until the monitoring result of the material temperature in the hopper by the material temperature monitoring unit returns to normal.

[0080] S9. In a single operation cycle, when the material temperature monitoring unit detects that the material temperature in the conveying chute is too high, the material temperature monitoring and management system will issue an alarm.

[0081] S10. Immediately open the water spray valve at the discharge port of the feeding chute in the material temperature control unit to control the temperature of the material flowing out of the feeding chute until the monitoring result of the material temperature in the feeding chute by the material temperature monitoring unit returns to normal.

[0082] S11. Repeat S5 to S10 in the subsequent ship unloading operation cycle until the ship unloading operation is completed.

[0083] S12: The ship unloading operation is completed and the material temperature control system of the grab ship unloader stops.

[0084] Example:

[0085] Taking the 1800tph grab ship unloader as an example, the control process of the grab ship unloader material temperature control system is explained. Figure 6 As shown: Ship unloading operations begin, the grab unloader's material temperature control system activates. First, the sprinkler pump starts to provide water pressure to the sprinkler pipes. Simultaneously, real-time monitoring of material temperatures in the cabin, hopper, and feed chute is initiated. Then, the vibrating feeder in the feeding mechanism is activated, and material begins to be fed to the dock's belt conveyor.

[0086] During a single unloading operation cycle, once the material temperature in the operating area of ​​the cabin is detected to be too high, the material temperature monitoring and management system will issue an alarm. After a certain delay, the water spray valve on the side wall of the hopper will be opened to spray water on the material in the hopper for a certain period of time to control the temperature. Once the material temperature in the hopper is detected to be too high, the material temperature monitoring and management system will issue an alarm and immediately open the water spray valve on the side wall of the hopper to control the temperature of the material in the hopper until the monitoring result of the material temperature in the hopper returns to normal. Once the material temperature in the feed chute is detected to be too high, the material temperature monitoring and management system will issue an alarm and immediately open the water spray valve at the discharge port of the feed chute to control the temperature of the material flowing out of the feed chute until the monitoring result of the material temperature in the feed chute returns to normal. Repeat the above monitoring and management until the unloading operation is completed.

[0087] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A material temperature control system for a grab ship unloader, characterized in that: include: The feeding mechanism is used to receive the materials unloaded by the grab bucket and transfer the materials to the belt conveyor at the dock; Material temperature monitoring unit, used to monitor the material temperature in the cabin, hopper and conveying chute in real time; Material temperature control unit, used to cool down high-temperature materials in the hopper area and at the discharge port of the conveying chute; The PLC control unit is used to receive data from the material temperature monitoring unit and control the operation of the feeding mechanism and the material temperature control unit.

2. The material temperature control system of grab ship unloader according to claim 1, characterized in that: The feeding mechanism includes a hopper mechanism and a feeding mechanism; A material discharge port is provided at the lower portion of the hopper mechanism, and a feeding mechanism is provided below the material discharge port; the feeding mechanism includes a vibrating feeder and a conveying chute, the vibrating feeder is provided above the conveying chute, and the conveying chute is provided above the wharf belt conveyor.

3. The material temperature control system of grab ship unloader according to claim 1, characterized in that: The material temperature monitoring unit includes a first temperature sensing detection element, a second temperature sensing detection element, a first infrared thermal imaging camera and a second infrared thermal imaging camera; The first temperature sensing element is installed on the lower side wall of the hopper mechanism, the second temperature sensing element is installed on the inner wall of the conveying chute, the first infrared thermal imaging camera is installed in the middle of the grab ship unloader arm, and the second infrared thermal imaging camera is installed on the side of the front shoulder beam; The first temperature sensing element, the second temperature sensing element, the first infrared thermal imaging camera and the second infrared thermal imaging camera are respectively connected to the PLC module.

4. The material temperature control system of grab ship unloader according to claim 1, characterized in that: The material temperature control unit includes a first water spray valve, a second water spray valve, a water storage tank and a water spray pump; The first water spray valve is installed on the inner side wall of the hopper mechanism, the second water spray valve is installed between the feed chute and the dock belt conveyor, the water storage tank and the sprinkler pump are arranged on the feeding platform of the grab ship unloader, and the sprinkler pump, the first water spray valve and the second water spray valve are connected to the PLC module.

5. The material temperature control system of grab ship unloader according to claim 1, characterized in that: The PLC control unit includes a PLC module, a Profinet communication module, a DI module and a DO module installed in the PLC room of the grab ship unloader; The PLC module receives data from the infrared thermal imaging camera in the material temperature monitoring unit and controls the drive of the vibrating feeder in the feeding mechanism through the Profinet communication module and the Prifinet bus protocol; The PLC module receives the data of the temperature detection element in the material temperature monitoring unit through the DI module in a hard-wired manner; The PLC module controls the sprinkler pump and the water spray valve in the material temperature control unit through the DO module in a hard-wired manner.

6. A grab ship unloader material temperature control method, implemented based on the grab ship unloader material temperature control system according to any one of claims 1 to 5, characterized in that: The steps include: S1. Ship unloading operation begins and the material temperature control system of the grab ship unloader is started; S2. The sprinkler pump in the material temperature control unit starts to provide water pressure for the sprinkler pipes; S3. The material temperature monitoring unit starts real-time monitoring of the material temperature in the cabin, hopper, and conveying chute; S4, the vibrating feeder in the feeding mechanism starts to feed materials to the wharf belt conveyor; S5. In a single operation cycle, when the material temperature monitoring unit detects that the material temperature in the operation area in the cabin is too high, the material temperature monitoring and management system will issue an alarm; S6, delay T 船 After the time has passed, the first water spray valve in the material temperature control unit is opened to control the temperature of the material in the hopper. The water spraying working time is T 船控 ; S7. In a single operation cycle, when the material temperature monitoring unit detects that the material temperature in the hopper is too high, the material temperature monitoring and management system will issue an alarm; S8. Immediately open the first water spray valve in the material temperature control unit to control the temperature of the material in the hopper until the monitoring result of the material temperature in the hopper by the material temperature monitoring unit returns to normal; S9. In a single operation cycle, when the material temperature monitoring unit detects that the material temperature in the conveying chute is too high, the material temperature monitoring and management system will issue an alarm; S10. Immediately open the second water spray valve in the material temperature control unit to control the temperature of the material flowing out of the feeding chute until the monitoring result of the material temperature monitoring unit on the material temperature in the feeding chute returns to normal; S11, repeating S5 to S10 in the subsequent unloading operation cycle until the unloading operation is completed; S12: The material temperature control system of the grab ship unloader stops.

7. The material temperature control method of grab ship unloader according to claim 6, characterized in that: In S6: T 船 =H 码头 / V 起升 +S 中 / V 小车 Among them, T 船 The time required to detect abnormal temperature in the cabin and start temperature control of the material in the hopper; H 码头 V is the distance from the dock to the upper stop position of the lift; 起升 is the maximum operating speed of the lifting mechanism; S 中 V is the horizontal distance from the center of the cabin to the center of the hopper; 小车 is the maximum operating speed of the trolley mechanism; T 船控 =60*W 载荷 / (E 额定 *(V 给料 / V 额定 )) Among them, T 船控 To stabilize the duration of sprinkler spraying; W 载荷 E is the rated load of the material currently grabbed by the grab; 额定 is the rated unloading capacity of the grab ship unloader; V 给料 V is the running speed of the vibration feeder in the current feeding mechanism; 额定 It is the maximum operating speed of the vibrating feeder in the feeding mechanism.

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