Power plant coal unloading management system and method

Abstract

The invention provides a power plant coal unloading management system and method.The power plant coal unloading management system comprises a monitoring recognition unit, a coal storage unit, a sampling unit and an information processing unit, the monitoring recognition unit is used for scanning coal cars entering a power plant and recording car information, the coal storage unit comprises a plurality of coal storage spaces, and the sampling unit is used for sampling the coal cars entering the power plant; the sampling unit comprises an extraction assembly and a collection assembly, the extraction assembly is connected with the coal storage unit and the collection assembly, the extraction assembly is used for extracting part of coal briquettes in the coal storage unit and conveying the coal briquettes to the collection assembly, the collection assembly is used for detecting coal briquette information, and the information processing unit is electrically connected with the monitoring identification unit, the coal storage unit and the sampling unit. And the information processing unit is used for receiving real-time monitoring information transmitted by the monitoring identification unit, the coal storage unit and the sampling unit and sending out a control signal according to the information. According to the power plant coal unloading management system, the problem of poor sampling representativeness caused by non-uniform coal quality of supplied coal is effectively avoided, and the coal unloading sampling efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of coal unloading in power plants, and in particular to a coal unloading management system and method for power plants. Background Art

[0002] Coal-fired power plants have many coal transport vehicles, many suppliers and small coal unloading trenches. Belt sampling for all vehicles is a heavy workload and cumbersome operation. Although the prototype is set up with automatic positioning and random point selection programs, due to the influence of the reinforcement and side grooves of the coal transport vehicle compartment, the actual selectable points are often a certain distance away from the accessories that are easy to damage the equipment, which cannot meet the full coverage of the sampling area.

[0003] In addition, due to the different floor heights of different models, the height of the carriages is also different, and there are even high and low floor models. When entering the vehicle size, a certain safety distance is often reserved, resulting in a sampling blind spot at the bottom of the vehicle. In addition, the coal quality is uneven when the coal truck is loaded, and the sampling representativeness may be poor. As a result, coal trucks are particularly prone to partitioning, layering, and bottom loading, which will cause losses in the quality inspection link before entering the factory and bring huge losses to the power plant. Summary of the invention

[0004] The present invention aims to solve one of the technical problems in the related art at least to a certain extent.

[0005] To this end, an embodiment of the present invention proposes a power plant coal unloading management system and method, which effectively avoids the problem of poor sampling representativeness caused by uneven coal quality, effectively eliminates the adulteration phenomenon of bad suppliers, ensures the true reflection of the calorific value of the coal, and avoids the occurrence of calorific value loss.

[0006] A power plant coal unloading management system according to an embodiment of the present invention includes:

[0007] A monitoring and identification unit, which is used to scan coal cars entering the power plant and record vehicle information;

[0008] A coal storage unit, the coal storage unit comprising a plurality of coal storage spaces, the plurality of coal storage spaces being arranged in sequence and spaced apart along the length direction of the coal storage plant, and one of the coal storage spaces comprising a plurality of coal grates;

[0009] A sampling unit, the sampling unit comprises an extraction component and a collection component connected in sequence, the extraction component is connected to the coal storage unit and the collection component, the extraction component is used to extract part of the coal blocks in the coal storage unit and transport them to the collection component, and the collection component is used to detect the coal block information;

[0010] An information processing unit, wherein the information processing unit is electrically connected to the monitoring and identification unit, the coal storage unit and the sampling unit, and the information processing unit is used to receive real-time monitoring information transmitted by the monitoring and identification unit, the coal storage unit and the sampling unit, and send control signals to the monitoring and identification unit, the coal storage unit and the sampling unit according to the information.

[0011] In some embodiments, the monitoring and identification unit includes a first monitoring component and a second monitoring component. The first monitoring component is arranged at the entrance and exit of the factory area to monitor the coal trucks entering and leaving the factory area in real time. The second monitoring component is arranged adjacent to the coal storage unit, and the height of the second monitoring component is lower than the height of the coal trucks.

[0012] In some embodiments, the sampling unit further includes a discard component, the inlet of the discard component is connected to the collection component, the outlet of the discard component is connected to the extraction component, and the outlet of the discard component is located downstream of the material conveying component of the extraction component, so that the discard component conveys the discarded material discharged from the collection component to the extraction component.

[0013] In some embodiments, the extraction unit includes a conveyor belt and a sampler, wherein the sampler is connected to the conveyor belt and is movable along the conveying direction of the conveyor belt, one end of the conveyor belt is adjacent to the coal storage unit for transferring coal blocks, and the sampler is connected to the collecting assembly for transferring part of the coal blocks selected from the conveyor belt to the collecting assembly, and the outlet of the discard assembly is located downstream of the sampler.

[0014] In some embodiments, there are multiple conveyor belts, and the multiple conveyor belts are arranged in sequence and at intervals along the length direction of the coal storage building.

[0015] The power plant coal unloading management method of the present invention is implemented by using any one of the power plant coal unloading management systems in the above embodiments, and comprises the following steps:

[0016] S1. Scan the coal cars entering the power plant and record the vehicle information;

[0017] S2, according to the usage of the coal storage unit, scan and record the vehicle information, and guide the coal car to the idle coal storage unit;

[0018] S3, using the extraction component in the coal mining unit to select some coal blocks in the coal storage unit, and then using the collection component to package and test the coal blocks, and record and transmit the test information;

[0019] S4. Analyze and determine the coal block parameter standard according to the detection information of the coal block;

[0020] S5. Guide the vehicle to leave the site, scan and record the vehicle information before leaving the factory.

[0021] In some embodiments, in step S2, the vehicle information of the coal car is reconfirmed using the second monitoring component, and the coal car is guided to the designated coal unloading location according to the prompt information updated by the real-time data.

[0022] In some embodiments, in step S3, at least one of the plurality of conveyor belts is used to extract and inspect the coal blocks in the coal storage unit, and the excess coal blocks are discharged onto the conveyor belt.

[0023] In some embodiments, the sampling unit has a single sampling mode and an alternating double sampling mode. In the single sampling mode, the sampler is used to extract coal blocks from one of the multiple conveyor belts; in the alternating double sampling mode, the sampler is used to extract coal blocks from at least two of the multiple conveyor belts.

[0024] In some embodiments, step S3 also includes extracting some coal blocks from the conveyor belt in a timely and quantitative manner using a sampler, and crushing and shrinking the extracted coal blocks and then conveying them to the collection assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a partial structural diagram of a power plant coal unloading management system according to an embodiment of the present invention.

[0026] Reference numerals:

[0027] 100, coal storage space, 200, impeller coal mining machine,

[0028] 1. The second monitoring component,

[0029] 2. Sampling unit, 21. Extraction component, 211. Conveyor belt, 212. Sampler, 22. Collection component, 23. Discard component. DETAILED DESCRIPTION

[0030] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0031] The following describes a power plant coal unloading management system according to an embodiment of the present invention with reference to the accompanying drawings.

[0032] The power plant coal unloading management system according to the embodiment of the present invention comprises: a monitoring and identification unit, a coal storage unit, a sampling unit 2 and an information processing unit.

[0033] The monitoring and identification unit is used to scan the coal cars entering the power plant and record the vehicle information. The coal storage unit includes a plurality of coal storage spaces 100, which are arranged in sequence along the length direction of the coal storage plant, and one coal storage space 100 includes a plurality of coal grates. The sampling unit 2 includes an extraction component 21 and a collection component 22 connected in sequence, the extraction component 21 connects the coal storage unit and the collection component 22, the extraction component 21 is used to extract part of the coal blocks in the coal storage unit and transport them to the collection component 22, and the collection component 22 is used to detect the coal block information. The information processing unit is electrically connected to the monitoring and identification unit, the coal storage unit and the sampling unit 2, and the information processing unit is used to receive the real-time monitoring information transmitted by the monitoring and identification unit, the coal storage unit and the sampling unit 2, and send a control signal to the monitoring and identification unit, the coal storage unit and the sampling unit 2 according to the information.

[0034] The monitoring and identification unit includes a high-resolution camera and a license plate recognition system for automatically identifying coal cars entering the power plant. The unit is able to scan the vehicle's license plate in real time and record relevant information such as license plate number, vehicle model, weight, etc. This information is then transmitted to the information processing unit for further processing and analysis, improving the degree of automation of vehicle management, reducing manual operation errors, and ensuring the accuracy and real-time nature of vehicle information.

[0035] The coal storage unit is designed as a plurality of coal storage spaces 100, each of which is provided with a plurality of coal grates for storing coal from different suppliers or different types. These spaces are arranged in sequence along the length of the coal storage plant, which is convenient for managing and serving coal from different regions and different types of coal, improves the efficiency of coal storage, reduces the mixing of coals, and facilitates management and monitoring.

[0036] The sampling unit 2 is composed of an extraction component 21 and a collection component 22. The extraction component 21 extracts coal from the coal storage unit through a belt or other conveying equipment, and then conveys it to the collection component 22. The collection component 22 is used to detect information of the coal sample, such as calorific value, moisture, etc., and feed the information back to the information processing unit, ensuring the representativeness of the sample and providing accurate data for the evaluation of coal quality.

[0037] The information processing unit is used to receive real-time information from the monitoring and identification unit, the coal storage unit and the sampling unit 2. Based on this information, the information processing unit can send a control signal to adjust the working mode of the system, such as starting or stopping the sampling process, adjusting the speed of the belt, etc., to achieve the automation and intelligence of the system, improve management efficiency and reduce manual intervention.

[0038] In some embodiments, the monitoring and identification unit includes a first monitoring component and a second monitoring component 1. The first monitoring component is arranged at the entrance and exit of the factory area to monitor the coal trucks entering and leaving the factory area in real time. The second monitoring component 1 is arranged adjacent to the coal storage unit, and the height of the second monitoring component 1 is lower than the height of the coal truck.

[0039] It is understandable that the first monitoring component is used to monitor the coal cars entering and leaving the plant in real time. Because it is located at the entrance and exit, the first monitoring component can capture instant images and data when the coal cars enter and exit, so as to facilitate recording the entry and exit time of the coal cars, checking the vehicle conditions and implementing safety monitoring.

[0040] The second monitoring component 1 is used to monitor the movement of the coal car in the plant area and the coal unloading process. Because it is located near the coal storage unit and at a lower height, the second monitoring component 1 can observe the loading and unloading behavior of the coal car and the state of the coal during the belt conveyor in more detail.

[0041] It should be noted that in the related art, in order to realize the identification of the vehicle for coal unloading positioning, a vehicle identification system, an LED display screen, and a vehicle blocker are installed at the entrance and exit of the coal unloading ditch of the coal car (generally located at the top of the entrance and exit) to control the entry and exit of the vehicle and realize the management and control of the vehicle. Among them, since the installation position of the information identification equipment is too high, the input power of the traditional scanning antenna vehicle number recognition device is too large, and the distance measurement is too far, which easily causes the phenomenon of cross-card reading. Therefore, a second monitoring component 1 is set at a position near the entrance and exit and its height is ensured to be lower than the height of the coal car, so as to reduce the recognition area range of the information identification equipment, thereby avoiding the occurrence of cross-card reading. For example, a short-range handheld card reader can be used.

[0042] Thus, the combined use of the first monitoring component and the second monitoring component 1 realizes comprehensive monitoring of the coal cars entering and leaving the plant area and the coal unloading process, and through real-time monitoring, safety accidents such as vehicle overloading, illegal entry, etc. can be discovered and prevented in a timely manner. In addition, the monitoring data can be used for subsequent analysis and evaluation, which helps to optimize the coal management process and improve operational efficiency.

[0043] In some embodiments, the sampling unit 2 also includes a discard component 23, the inlet of the discard component 23 is connected to the collection component 22, the outlet of the discard component 23 is connected to the extraction component 21, and the outlet of the discard component 23 is located downstream of the material conveying of the extraction component 21, so that the discard component 23 conveys the discarded material discharged from the collection component 22 to the extraction component 21.

[0044] It is understandable that if Figure 1 As shown, the inlet of the discard component 23 is connected to the discharge outlet of the extraction component 21 to receive the excess coal slag discharged by the extraction component 21. The discard component 23 is used to transport the excess coal slag to the extraction component 21 to avoid waste of coal slag.

[0045] In some embodiments, the extraction unit includes a conveyor belt 211 and a sampler 212, the sampler 212 is connected to the conveyor belt 211, and the sampler 212 is movable along the conveying direction of the conveyor belt 211, one end of the conveyor belt 211 is adjacent to the coal storage unit for transmitting coal blocks, the sampler 212 is connected to the collecting component 22 so as to be used to transport part of the selected coal blocks on the conveyor belt 211 to the collecting component 22, and the outlet of the discarding component 23 is located downstream of the sampler 212.

[0046] Specifically, Figure 1 As shown, the impeller coal feeder can be used to transport the coal between the extraction unit and the coal storage unit, that is, the coal in the coal storage unit can be evenly delivered to the conveyor belt 211 through the impeller coal feeder, so as to facilitate the subsequent sampling work of the sampler 212. The sampler 212 can take samples from the conveyor belt 211 at a fixed time and in a fixed quantity, so as to ensure that the same batch of incoming coal is sampled evenly, and facilitate the subsequent detection of the extracted coal samples.

[0047] It should be noted that the collection component 22 includes a feeder, a crushing and reducing system and a sample collection machine connected in sequence. That is, the coal sample extracted by the sampler 212 can be transported to the feeder, and the feeder quantitatively transports the coal sample to the crushing and reducing system according to the processing progress of the subsequent connected equipment. The crushing and reducing system is first used to mechanically crush large pieces of coal samples through a crusher to make them into small pieces or fine particles, which helps to improve the material transportation efficiency, reduce the wear on the transportation equipment, and facilitate subsequent processing and utilization; secondly, the crushed material is reduced, that is, the volume and weight of the material are reduced, thereby reducing the storage space and transportation cost of the material. At the same time, the reduced material is easier to accurately measure and control.

[0048] In addition, the collector can be an automatically readable sealed electronic password barrel to better realize the automatic weighing, sealing and data recording of coal samples. In other words, the automatically readable sealed electronic password barrel can accurately measure the weight of the coal sample, reduce human errors, and ensure the accuracy of the sampling data. The design of the sealed electronic password barrel can also effectively prevent the coal sample from being contaminated during the collection and storage process, ensuring the purity of the coal sample. The automatically readable sealed electronic password barrel also has data storage and transmission functions, and can upload the sampling data to the database in real time through the computer network, enhancing the security and traceability of the data.

[0049] Therefore, the power plant coal unloading management system of the present invention can improve the uniformity of the material through crushing and shrinking, so that it can achieve a more uniform particle size distribution, which is helpful to improve the processing quality and efficiency of the material, and uses automatically read sealed electronic password barrels to provide higher efficiency, accuracy and safety in coal sample collection and storage.

[0050] Preferably, there are multiple conveyor belts 211, and the multiple conveyor belts 211 are arranged in sequence and at intervals along the length direction of the coal storage building.

[0051] It should be noted that there are multiple conveyor belts 211, and the sampler 212 cooperates with the multiple conveyor belts 211 so that sampling can be performed when the multiple conveyor belts 211 are working at the same time. That is to say, when the power plant is in a busy period, especially when entering the winter coal storage stage, a large amount of coal entering the plant every day will cause long-term nighttime loading and unloading, which has a great adverse effect on safety, coal quality control and personnel work intensity. Therefore, using multiple output belts for sampling can improve the loading and unloading capacity in more periods of time.

[0052] Taking two conveyor belts 211 as an example, the sampler can switch to several interactive sampling modes, that is, single sampling and alternating double sampling. In single sampling mode: when a conveyor belt 211 is unloading coal, the sampling head on one side of the sampler 212 detects the belt running signal and the coal flow signal, the system will start the single sampling head, and the sampler will perform sampling according to logic and the preset sampling period.

[0053] While unloading coal on one conveyor belt 211, the other conveyor belt 211 starts the unloading mode halfway at the same time: when one conveyor belt 211 is unloading coal normally, the single-side sampler is performing sampling, and at this time the other conveyor belt 211 also starts unloading coal. In this case, the system will immediately start the double sampling head alternating sampling function, and the two sampling heads will obtain their respective sampling cycles to achieve alternating sampling according to the set cycle. For example, if the sampling cycle is set to 300s, the system will assign each cycle to the two sampling heads of the sampler 212. The first 300s is timed to the first sampling head for sampling, the second 300s is timed to the second sampling head for sampling, and the third 300s is timed to the first sampling head for continuing sampling, and so on. The cycle is repeated to achieve the function of alternating sampling and avoid missed sampling.

[0054] Mode in which two conveyor belts 211 are running simultaneously and one conveyor belt 211 is stopped midway: When two conveyor belts 211 are running simultaneously, if one conveyor belt 211 is stopped midway, the original alternating sampling function will immediately switch to the single sampling mode, stop the sampling head of the corresponding sampler, and keep the sampling head on the side of the running conveyor belt 211 for single sampling, and the sampling cycle will be carried out according to the single sampling cycle.

[0055] Therefore, the power plant coal unloading management system of the present invention not only realizes the logic of alternating sampling of multiple conveyor belts 211, but also improves the efficiency of receiving and unloading coal entering the plant, greatly reduces the labor input in the sampling link, and improves the efficiency of receiving and unloading. In addition, the use of the sampling unit 2 also effectively avoids the problem of poor representativeness of the spiral sampler sampling caused by the uneven quality of the incoming coal, eliminates the adulteration phenomenon of bad suppliers, ensures the true reflection of the calorific value of the incoming coal, and avoids the occurrence of the phenomenon of card loss. The power plant coal unloading management method of the present invention is described below.

[0056] The power plant coal unloading management method of the present invention is implemented by using any one of the power plant coal unloading management systems in the above embodiments, and includes the following steps:

[0057] S1. Scan the coal cars entering the power plant and record the vehicle information. An automatic identification system is set up at the entrance of the power plant, which includes a license plate recognition camera, RFID recognition device or other sensing equipment. When the coal car enters the power plant, the system automatically scans the vehicle's license plate number, model, entry time and other information, and records this information in the database.

[0058] S2. Scan and record vehicle information based on the usage of the coal storage unit, and guide the coal car to an idle coal storage unit. Multiple coal storage units are set up inside the power plant, and each unit is equipped with a sensor or monitoring system to monitor its usage. When a new coal car enters the power plant, the system analyzes which coal storage unit is idle through information in the database, and guides the vehicle to the unit through electronic display screens, voice prompts, etc.

[0059] S3. Use the extraction component in the coal mining unit to select some coal blocks in the coal storage unit, and then use the collection component to package and test the coal blocks, and record and transmit the test information. The extraction component of the coal storage unit can use a material conveying device such as a mechanical arm or an automatic extraction machine to facilitate the selection of some coal blocks from the coal storage unit. Subsequently, use a collection component, such as an automatic packaging machine, to package the coal blocks, and use testing equipment such as a spectrometer, a weight scale, etc. to test the quality, composition and other parameters of the coal blocks, record the test results and transmit them to the central control system.

[0060] S4. Analyze and judge the coal block parameter standards based on the coal block detection information. The central control system analyzes the collected coal block detection information and evaluates and judges the quality of the coal block based on the preset parameter standards, such as calorific value, water content, sulfur content, etc.

[0061] S5. Guide the vehicle to leave the site, scan and record the vehicle information before leaving the plant. A similar automatic identification system is set up at the exit of the power plant. When the coal car is ready to leave the site, the system scans the vehicle information again, records the time of leaving the site, vehicle status, etc., and updates this information to the database.

[0062] It should be noted that the central control system is a complex system that integrates a variety of equipment and instruments. The central control system includes servers and computer systems, communication network equipment, monitoring cameras and sensors, and automatic identification and detection systems. In other words, servers and computer systems can process and store all data related to vehicles and coal blocks, perform complex computing tasks, and provide data analysis and decision support. Communication network equipment ensures efficient communication between all equipment and systems, including real-time data transmission and instruction issuance. Monitoring cameras and sensors can collect on-site data, monitor the coal block extraction and packaging process, and ensure the correctness and safety of operations. The automatic identification system can automatically identify and record vehicle information for easy tracking and management. The detection system is used to collect measurement data from detection equipment for subsequent analysis and evaluation.

[0063] Therefore, the power plant coal unloading management method of the present invention reduces the time of manual operation and improves the operating efficiency of the power plant by automatically scanning and recording vehicle information. Real-time monitoring of the use of coal storage units can more reasonably allocate and utilize coal storage space and improve coal storage efficiency. The automated extraction and packaging of coal blocks, combined with high-precision testing equipment, can more accurately evaluate the quality of coal and provide reliable data for further processing and utilization of coal. In addition, real-time recording of vehicle information helps to track vehicle dynamics and improve the safety management level of the power plant. By collecting and analyzing a large amount of coal and vehicle information, it helps the power plant to achieve data management and improve the scientific nature of decision-making.

[0064] In some embodiments, in step S2, the vehicle information of the coal car is reconfirmed using the second monitoring component, and the coal car is guided to the designated coal unloading location according to the prompt information updated by the real-time data.

[0065] Before the coal car enters the coal storage unit, a second monitoring component, such as a high-definition camera or sensor, is set up to confirm the vehicle information again. This monitoring component can be linked with the central control system to confirm the identity and destination of the vehicle through real-time data analysis. According to the real-time updated prompt information, such as instructions on the electronic display or voice prompts, the coal car is guided to the designated coal unloading location.

[0066] In other words, double confirmation of vehicle information can improve the accuracy of the system and reduce the occurrence of errors. At the same time, real-time guidance can make more efficient use of coal storage space, reduce waiting time, and improve overall operational efficiency.

[0067] In some embodiments, in step S3, at least one of the plurality of conveyor belts is used to extract and inspect the coal blocks in the coal storage unit, and the excess coal blocks are discharged onto the conveyor belt.

[0068] It is understandable that, according to the coal unloading situation of the power plant, one or more conveyor belts can be selected to work. That is, under normal working conditions, one conveyor belt can be used to work, and during busy hours, multiple conveyor belts can be started to work at the same time to ensure the overall coal unloading efficiency.

[0069] In some embodiments, the sampling unit has a single sampling mode and an alternating double sampling mode. In the single sampling mode, the sampler is used to extract coal blocks from one of the multiple conveyor belts; in the alternating double sampling mode, the sampler is used to extract coal blocks from at least two of the multiple conveyor belts.

[0070] The sampling unit can be switched to single sampling mode or alternating double sampling mode as needed. In single sampling mode, the sampler extracts coal blocks from only one conveyor belt; while in alternating double sampling mode, the sampler can extract coal blocks from at least two conveyor belts respectively, thereby improving the sampling efficiency.

[0071] In some embodiments, step S3 also includes extracting some coal blocks from the conveyor belt in a timely and quantitative manner using a sampler, and crushing and shrinking the extracted coal blocks and then conveying them to the collection assembly.

[0072] The sampler extracts coal lumps from the conveyor belt at preset time intervals and quantities. The extracted coal lumps are crushed and shrunk to reduce their volume for subsequent packaging and testing operations. The crushed and shrunk coal lumps are conveyed to the collection assembly for quality testing.

[0073] In other words, regular and quantitative extraction can ensure the representativeness of the sample, while the fragmentation and reduction process can help simplify the detection process and improve detection efficiency and accuracy.

[0074] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0075] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0076] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0077] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0078] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0079] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A coal unloading management system for a power plant, characterized in that: include: A monitoring and identification unit, which is used to scan coal cars entering the power plant and record vehicle information; A coal storage unit, the coal storage unit comprising a plurality of coal storage spaces, the plurality of coal storage spaces being arranged in sequence and spaced apart along the length direction of the coal storage plant, and one of the coal storage spaces comprising a plurality of coal grates; A sampling unit, the sampling unit comprises an extraction component and a collection component connected in sequence, the extraction component is connected to the coal storage unit and the collection component, the extraction component is used to extract part of the coal blocks in the coal storage unit and transport them to the collection component, and the collection component is used to detect the coal block information; An information processing unit, wherein the information processing unit is electrically connected to the monitoring and identification unit, the coal storage unit and the sampling unit, and the information processing unit is used to receive real-time monitoring information transmitted by the monitoring and identification unit, the coal storage unit and the sampling unit, and send control signals to the monitoring and identification unit, the coal storage unit and the sampling unit according to the information.

2. The power plant coal unloading management system according to claim 1, characterized in that: The monitoring and identification unit includes a first monitoring component and a second monitoring component. The first monitoring component is arranged at the entrance and exit of the factory area to monitor the coal car entering and leaving the factory area in real time. The second monitoring component is arranged adjacent to the coal storage unit, and the height of the second monitoring component is lower than the height of the coal car.

3. The power plant coal unloading management system according to claim 2, characterized in that: The sampling unit also includes a discard component, the inlet of the discard component is connected to the collection component, the outlet of the discard component is connected to the extraction component, and the outlet of the discard component is located downstream of the material conveying of the extraction component, so that the discard component conveys the discarded material discharged from the collection component to the extraction component.

4. The power plant coal unloading management system according to claim 3, characterized in that: The extraction unit includes a conveyor belt and a sampler, wherein the sampler is connected to the conveyor belt and is movable along the conveying direction of the conveyor belt. One end of the conveyor belt is adjacent to the coal storage unit for transferring coal blocks. The sampler is connected to the collecting assembly so as to transfer part of the coal blocks selected from the conveyor belt to the collecting assembly. The outlet of the discard assembly is located downstream of the sampler.

5. The power plant coal unloading management system according to claim 4, characterized in that: There are multiple conveyor belts, which are arranged in sequence and at intervals along the length direction of the coal storage building.

6. A method for managing coal unloading in a power plant, the method for managing coal unloading in a power plant being implemented by using any one of the coal unloading management systems for a power plant described in 1-5 above, characterized in that: The following steps are involved: S1. Scan the coal cars entering the power plant and record the vehicle information; S2, according to the usage of the coal storage unit, scan and record the vehicle information, and guide the coal car to the idle coal storage unit; S3, using the extraction component in the coal mining unit to select some coal blocks in the coal storage unit, and then using the collection component to package and test the coal blocks, and record and transmit the test information; S4. Analyze and determine the coal block parameter standard according to the detection information of the coal block; S5. Guide the vehicle to leave the site, scan and record the vehicle information before leaving the factory.

7. The power plant coal unloading management method according to claim 6, characterized in that: In step S2, the second monitoring component is used to reconfirm the vehicle information of the coal car, and guide the coal car to the designated coal unloading location according to the prompt information updated by the real-time data.

8. The power plant coal unloading management method according to claim 6, characterized in that: In step S3, at least one of the plurality of conveyor belts is used to extract and inspect the coal blocks in the coal storage unit, and the excess coal blocks are discharged onto the conveyor belt.

9. The power plant coal unloading management method according to claim 8, characterized in that: The sampling unit has a single sampling mode and an alternating double sampling mode. In the single sampling mode, the sampler is used to extract coal blocks from one of the multiple conveyor belts; in the alternating double sampling mode, the sampler is used to extract coal blocks from at least two of the multiple conveyor belts.

10. The power plant coal unloading management method according to claim 9, characterized in that: In step S3, it also includes using a sampler to extract part of the coal blocks from the conveyor belt in a timely and quantitative manner, and crushing and shrinking the extracted coal blocks and then conveying them to the collection assembly.

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