31 results about "Coal stockpile" patented technology

This invention relates to the field of thermal power generation cost accounting technology, and proposes a dynamic modeling method and system for the cost per kilowatt-hour based on the forward and reverse balance method. The method includes: real-time acquisition of data on instantaneous flow rate of the coal feeder, coal pile volume, density, coal analysis upon entering the furnace, unit operation, and fuel price; calculation of dynamic coal quality data using a multimodal fusion algorithm; calculation of forward fuel cost based on flow rate, coal quality, and price data; calculation of reverse balance theoretical cost by inferring the theoretical standard coal quantity based on unit operation data; comparison and verification of forward and reverse costs to determine the final fuel cost; and calculation of dynamic cost per kilowatt-hour by combining variable cost and power generation data. This invention achieves a nonlinear dynamic mapping from multi-dimensional real-time data to accurate cost per kilowatt-hour, enabling high-precision, real-time, and automated dynamic modeling of the cost per kilowatt-hour for thermal power generation enterprises.

The utility model discloses a coal sample sampling device, including the installation board for being used for with sampling mechanical arm installation connection and the sampling pipe of rotation setting on the installation board, the outside of sampling pipe is provided with helical blade, be provided with the power component for driving sampling pipe rotation on the installation board, sampling pipe is with helical ascending and helical descending mode and extends into the coal heap, the bottom of sampling pipe is pointed, and the both sides of pointed have the sampling mouth for coal sample to enter, and are provided with the blocking component that can open and close the sampling mouth, store coal sample through sampling pipe, and under the driving of sampling mechanical arm, will coal sample shift to coal sample transmission equipment. The utility model discloses, through make sampling pipe with helical downhole form and insert the coal heap, and the loss of this mode sampling head is relatively smaller, can improve the service life of sampling head and sampling mechanical arm.

The present application relates to the technical field of safety monitoring and industrial automation, and discloses a silo safety monitoring method and system, which synchronously acquires coal pile surface point cloud, lateral pressure, vertical load and environmental data through the arrangement of a laser scanning unit, an annular pressure sensing belt, a weighing sensor and a temperature and humidity node; a high-precision three-dimensional morphology is reconstructed based on an adaptive grid refinement algorithm, and a joint representation model is constructed by fusing mechanical data; a stability discrimination function is established in combination with coal body physical parameters to identify the instability critical region; and through pattern matching with a historical stability morphology library, hierarchical early warning of abnormal working conditions such as suspended arch, bonding and blockage and generation of blockage removal strategies are realized. The present application constructs a joint representation model of coal pile three-dimensional morphology and mechanical state by fusing laser point cloud, pressure distribution and load sensing data, breaks through the limitation of traditional single-point material level measurement which cannot reflect the overall coal pile structure, and realizes high-precision measurement with a storage calculation error of less than 2%.

The utility model relates to coal hopper car technical field, concretely is a kind of anti-caking coal transport hopper car, including car, be equipped with vibration-dispersing mechanism and rainproof mechanism on the car, the vibration-dispersing mechanism includes moving plate, the moving plate sliding connection is in the bottom end inside car, the moving plate bottom end is fixedly connected with piston rod, the piston rod is set through car bottom, the piston rod end is equipped with piston cylinder, by the moving plate of lifting type structure to the coal heap is moved, to utilize the deformation of coal heap whole to break down caking area, the moving plate of synchronous falling of local coal heap is made simultaneously fast, utilize the vibration of the weight of coal heap itself to break down caking area, to facilitate the unloading operation of caking coal heap, improve unloading efficiency. The weight of coal heap is discharged quickly in the air inside piston cylinder by the pressure relief pipe set, high-speed airflow is formed in the pipe orifice of pressure relief pipe, possibly in the vicinity of unloading hopper caking coal heap is scattered, improve unloading efficiency.

The present application relates to roadway construction equipment technical field, especially to a kind of coal mine roadway tunneling machine with folding full-face shovel plate, including main shovel plate, side shovel plate is rotatably installed on main shovel plate, first rotary drive mechanism is installed on main shovel plate, the included angle between the rotation axis of side shovel plate and horizontal plane is equal to the included angle between main shovel plate and horizontal plane.The present application can switch shovel plate into unfolded state and folded state by first rotary drive mechanism, when side shovel plate is switched into unfolded state, main shovel plate and side shovel plate can simultaneously push coal pile and coal in roadway, when side shovel plate is switched into folded state, folded side shovel plate plays a role of avoiding, increase the distance between side shovel plate and roadway sidewall, provide enough passing space for construction personnel and equipment in roadway, so that construction personnel and equipment can pass through the space between side shovel plate and roadway sidewall, facilitate the normal progress of other construction.

This disclosure relates to a monitoring system and method for a bucket wheel stacker-reclaimer. The system includes: a coal inventory device for periodically scanning a coal yard to obtain first scan data of the coal yard, wherein the coal yard includes at least one coal stack; a coal stack scanning device for real-time scanning of the coal stack currently being reclaimed by the bucket wheel stacker-reclaimer to obtain second scan data of the coal stack; and a central control system, communicatively connected to the coal inventory device and the coal stack scanning device, for dynamically updating the original coal yard storage model based on the received first and second scan data to generate a dynamic coal yard storage model; and further for determining the operating status of the bucket wheel stacker-reclaimer and / or the coal yard storage information based on the dynamic coal yard storage model. This solves the technical problem of low accuracy in manual inventory checks.

This invention relates to the field of coal pile moisture content monitoring technology, specifically a hyperspectral moisture content monitoring method for coal piles based on illumination difference compensation. The method acquires hyperspectral and elevation data from a UAV, establishes a correspondence between slope and solar incidence to extract illumination information, classifies illuminated and backlit pixels based on brightness ranking, selects stable bands to extract reflectance differences, adjusts the reflectance of various pixels according to the angle segment to generate a compensation spectrum, and matches the compensation features with the measured moisture content point by point to generate the coal pile moisture content monitoring result. This invention selects reference bands based on slope aspect and solar incidence coupling and brightness differences, constructs a multi-level illumination classification to enhance illumination recognition capabilities, selects stable bands through the correspondence between illuminated and backlit areas to construct a difference sequence, determines the adjustment direction based on the angle and position to form a consistent compensation spectrum, and matches the compensation spectrum with the moisture content to achieve full-domain mapping, improving the accuracy and spatial continuity of moisture content recognition.

The present application belongs to the field of thermal power plants, and discloses a coal quantity rapid analysis method, system, computer equipment and storage medium, comprising: obtaining laser radar scanning point cloud data of a coal pile area; performing three-dimensional target detection on the laser radar scanning point cloud data of the coal pile area with the coal pile as a to-be-recognized target to obtain relative coordinates of a three-dimensional detection frame; obtaining laser radar scanning point cloud data within the three-dimensional detection frame according to the relative coordinates of the three-dimensional detection frame, and obtaining a pile shape type of the coal pile and relative size parameters of the coal pile according to the laser radar scanning point cloud data within the three-dimensional detection frame; and obtaining a volume of the coal pile according to the pile shape type of the coal pile, the relative coordinates of the three-dimensional detection frame and the relative size parameters of the coal pile. Compared with the existing manual coal piling method, the coal quantity rapid analysis method can realize real-time and rapid calculation of the volume of the coal pile based on the laser radar scanning point cloud data of the coal pile area, greatly reducing the time consumption of piling coal.

This utility model provides a coal bunker, comprising: a bottom plate located at the coal outlet, the bottom plate being capable of opening or closing the coal outlet; and an adjustment mechanism including an adjustment section and a locking section. The adjustment section has a connecting section and an adjustment section connected to each other, the connecting section being movably connected to the bottom plate, and the adjustment section being movably mounted on a frame. The adjustment section has a first locking structure, and the locking section has a second locking structure. The adjustment section has a locked state and an unlocked state. When the adjustment section is in the unlocked state, the bottom plate drives the adjustment section to move relative to the frame through the connecting section. When the adjustment section is in the locked state, the first locking structure and the second locking structure cooperate to fix the relative position of the adjustment section and the frame. The technical solution provided by this utility model can solve the problem in the prior art where the bottom plate of the coal bunker may be subjected to pressure from the coal pile, leading to changes in the tilt angle, deformation, or damage of the bottom plate during use, thus affecting the accuracy of coal output.

This invention discloses a method, apparatus, and storage medium for calculating coal pile volume based on point clouds, relating to the field of coal yard material measurement. The method includes: dynamically determining the coal pile reference surface based on a random sample consensus algorithm and an initial point cloud dataset; completing the structured mesh with the curvature characteristics of the initial point cloud to obtain a three-dimensional ordered point cloud; performing triangulation on the three-dimensional ordered point cloud according to curvature partitions, obtaining a three-dimensional surface model through differential smoothing optimization, and calculating the mesh height of each triangular unit; if the mesh height of a triangular unit is lower than an abnormally low value multiple times consecutively, the coal pile reference surface is dynamically re-determined; along the normal vector direction of the coal pile reference surface, the coal pile is layered based on a preset height interval; the volume of the triangular units within each layer is calculated and accumulated based on the effective height of the corrected triangular unit vertices to obtain the total volume of the coal pile. This achieves automated and accurate calculation of coal pile volume, improving the efficiency and accuracy of coal pile volume measurement.

The application discloses a closed coal pile multi-object optical three-dimensional reconstruction system, which comprises a main control module, a loading module, a space modeling positioning module, a bucket wheel machine operation module, a demand checking module, a database, a coal shed bucket wheel machine and an acceptance end, the output ends of the space modeling positioning module and the loading module are connected with the input end of the main control module, the output ends of the main control module and the demand checking module are connected with the input end of the bucket wheel machine operation module, the output end of the bucket wheel machine operation module is connected with the input end of the database, the output end of the database is connected with the input end of the bucket wheel machine operation module, the database is electrically connected with multiple different acceptance ends through the coal shed bucket wheel machine, the main control module is used for controlling and adjusting the input and output of the loading module, the space modeling positioning module and the bucket wheel machine operation module, and the application has the characteristics that coal mines can be selected.

The application provides a coal yard coal taking and proportioning method and system, which comprises the following steps: locking the current coal pile of a target coal yard and the boundary line of the current coal pile, and constructing a coal yard coal pile structure diagram of the target coal yard; planning a coal pile line of the same coal quality according to the center coordinates of each coal pile; obtaining a coal yard coal taking demand; locking a first line corresponding to the demand coal quality involved respectively, and obtaining a coal taking distribution diagram based on all the first lines; determining the corresponding initial coal taking position according to the first boundary range and the first weight of each coal pile diagram in the coal taking distribution diagram; determining the initial position section in the remaining first line that has a preset relationship with the same first line; locking the first position in the same first line based on the initial coal taking position, the initial position section and the demand coal weight; planning a coal taking route based on the locked first position on each first line, and realizing effective coal taking. The coal taking efficiency is greatly improved.

The utility model discloses a wireless monitoring terminal and wireless ad hoc network device, hollow arrangement in wireless monitoring terminal, and wireless monitoring terminal includes pole body, pole head and pole tail, and pole head is equipped with temperature sensor, and pole head is along the circumference and is equipped with a plurality of air inlet, and pole tail is equipped with gas sensor and sensor adapter board, and temperature sensor and gas sensor all are connected with sensor adapter board electricity, and sensor adapter board electricity connects wireless terminal circuit board, and wireless terminal circuit board electricity is connected with power supply and drive motor for power supply, and drive motor output shaft fixed connection has the flow guide fan blade, and wireless terminal circuit board electricity is connected with the wireless module for receiving and dispatching data, and wireless module electricity is connected with wireless data transmission ware for transmitting data. The present application can realize the quick collection and real -time monitoring of the gas data in the designated depth area of coal heap.

The present application relates to the measurement technical field of millimeter wave radar in automatic coal piling system, especially relates to a coal yard unmanned dumping and blending system based on automatic coal piling device, which comprises a control device, a synchronous acquisition module, a twin modeling module, a phase correction module, a coordinate calculation module, a volume inversion module, a path planning module and an optimization control module; the synchronous acquisition module is used for acquiring time-space synchronous original echo data and coal pile surface temperature and humidity field data; the twin modeling module is used for building a digital model reflecting dynamic changes of dielectric properties; the phase correction module is used for intelligently correcting echo phase; the coordinate calculation module is used for converting the corrected phase into a spatial coordinate sequence; the volume inversion module is used for calculating the volume of the coal pile; the path planning module is used for generating operation instructions based on the target blending ratio and the volume of the coal pile; and the optimization control module is used for driving the unmanned dumping machine group to execute the operation; through dynamic modeling and intelligent correction, the present application solves the technical problems of millimeter wave radar phase distortion and volume inversion error periodic oscillation caused by changes in the surface humidity of the coal pile, and improves the coal piling accuracy of the coal yard and the reliability of unmanned operation.

This application relates to a movable coal-fired spontaneous combustion prevention and monitoring device and method for use in silos. The device's power supply module moves periodically along a preset path laid out on the inner wall of the silo, and is connected to a control module to supply power to the control module. The control module is mounted on the power supply module and connected to a temperature monitoring module. The temperature monitoring module includes a telescopic temperature sensor and a temperature sensing element mounted on the telescopic temperature sensor. Under the action of the control module, the telescopic temperature sensor extends relative to the control module to insert into the coal inside the silo and measures the temperature through the temperature sensing element. It also retracts relative to the control module to detach from the coal. This method enables automatic monitoring of coal pile temperature changes periodically, saving manpower. The telescopic temperature sensor, when extended and inserted into the coal, monitors a wide range of temperature changes within the coal pile, facilitating early warning and timely detection of early spontaneous combustion hazards.

This invention discloses a method for determining the bulk density of coal in a coal yard, comprising the following steps: The measuring equipment needs to be calibrated before measurement; a coal sample is collected and loaded into the measuring equipment; a simulated pressure value is calculated, and then the pressing system is adjusted so that the pressure loading plate presses down on the coal sample, ensuring that the value displayed by the pressure sensor is the same as the calculated simulated pressure value; the pressure is maintained for n minutes; during the pressure maintenance period, the measuring equipment records the pressure sensor reading change curve; the coal sample is trimmed and scraped off; the scraped off coal sample is weighed and recorded as the compensation mass; the bulk density is calculated based on the net weight of the trimmed coal sample; after recording the data, the measurement is repeated n times for verification, and the average value is taken as the final measurement result. This invention reduces the labor intensity of manually handling the loading steel plate and avoids the safety risks such as crushing and twisting injuries that may be caused by handling heavy objects, creating a safer and more humane working environment.

The application discloses a mine truck simulation driving training method based on scene simulation, relates to the technical field of driving simulation, and comprises the following steps: acquiring a general parameter set and a load-specific coefficient set to construct a personalized simulation scene, collecting a real-time parameter set to calculate a current rollover risk index; if the current rollover risk index exceeds a pre-set rollover risk threshold, triggering a warning and recording a warning time; for the warning state, calculating a fusion risk index and generating a training report; by introducing the load-specific coefficient, the physical process that the coal pile suddenly collapses from a stable state and causes the load bias coefficient to step up in a short time when turning or tilting is truly reproduced; the technical defects that the traditional continuous medium model cannot simulate the impact type rollover moment of discrete materials are solved, highly realistic reproduction of the sudden rollover accident of the mine truck is realized, and the prediction ability and emergency response speed of the driver for the critical collapse are improved.

The present application relates to the technical field of video analysis, in particular to a kind of based on video analysis technology's car compartment coal pile left over early warning system, it includes front end, weighbridge system server and client;Analysis host carries out car compartment detection tracking to the video sequence of network camera access, when judging car compartment stationary, carry out tarpaulin covering detection, if tarpaulin covering is detected, then directly produce alarm;If tarpaulin covering is not detected, then use coal pile detection module to carry out coal pile left over detection;If coal pile is detected, then produce alarm;The alarm information generated is pushed to weighbridge system server;Weighbridge system server receives the alarm information pushed by analysis host, and controls the opening and closing of brake, simultaneously, alarm record is stored;Client receives alarm information in real time, and historical alarm data can be inquired.The present application comprehensively uses car compartment detection tracking, tarpaulin detection and coal pile detection technology, solves the problem of coal loss in factory caused by the accuracy performance problem of weighbridge system.

This invention belongs to the field of coal bunker and coal pile volume calculation technology, specifically disclosing a method for calculating coal bunker and coal pile volume based on point cloud semantic segmentation. The specific technical solution is as follows: Step 1, Data Acquisition and Preprocessing: First, three-dimensional point cloud data inside the coal bunker is acquired through LiDAR, and the original point cloud is segmented for sampling and feature construction; Step 2, Network Structure Construction: Based on the PointNet++ multi-scale feature abstraction structure and introducing the boundary-aware Transformer module, fine semantic segmentation of the coal pile and background structure is achieved; Step 3, Point Cloud Post-processing and Volume Reconstruction: The segmented coal pile point cloud is post-processed and three-dimensionally reconstructed to generate a closed mesh model and complete the coal pile volume calculation. This method can stably achieve high-precision volume estimation under different coal pile sizes, has good engineering application potential, and can meet the needs of industrial sites for real-time performance and deployment under resource-constrained conditions.

This application relates to a density-stratified radar coal inventory method, system, electronic device, and medium, belonging to the technical field of intelligent coal inventory. The method includes: acquiring a first three-dimensional geometric model of the coal pile in the current inventory; acquiring a second three-dimensional geometric model of the coal pile in the previous inventory and corresponding historical quality information; determining the deformation type of the current inventory relative to the previous inventory based on the comparison results of the first and second three-dimensional geometric models; calculating the quality of newly added areas using a stratified integration strategy; and determining the remaining area of ​​the coal pile in the previous inventory relative to the missing area, and calculating the quality of the remaining area using a stratified integration strategy and a corresponding density correction strategy based on the volume ratio of the missing area to the coal pile in the previous inventory. This application has the effect of improving coal inventory accuracy.

The present application belongs to the technical field of unattended management of thermal power plants, and relates to an unattended management system and method for a stacker-reclaimer of a thermal power plant. The present application acquires original three-dimensional data of a coal pile surface in real time. The original three-dimensional data is processed by data conversion to construct a three-dimensional image of the coal pile. The three-dimensional image is used to obtain coal pile parameters. The coal pile parameters are decomposed into unattended instructions for controlling the stacker-reclaimer to perform stacking or reclaiming operations, and are sent to the PLC control system of the stacker-reclaimer. The present application uses an automatic closed-loop process of data acquisition, three-dimensional modeling, parameter calculation, and instruction sending to replace manual experience judgment and manual control with machine automatic decision-making, eliminates the problems of low precision and poor standardization of manual operation, significantly reduces labor intensity and occupational disease risk, and is conducive to realizing automatic and continuous operation of the stacker-reclaimer operation, improving operation efficiency, and ensuring operation safety.

This invention discloses a method, apparatus, equipment, and storage medium for determining the weight of a coal pile, comprising: establishing an initial dynamic density model of coal pile density varying with height; solving the parameters of the initial dynamic density model based on coal feeding correlation data during the coal feeding stage, and updating the initial dynamic density model based on the solution results to obtain an updated dynamic density model; verifying the updated dynamic density model based on coal consumption correlation data during the coal consumption stage; obtaining the target coal pile to be evaluated when the verification is successful, and calculating the weight of the target coal pile based on the updated dynamic density model. Solving the coal feeding correlation data during the coal feeding stage to determine the updated dynamic density model of coal pile density varying with height, and verifying the updated dynamic density model based on coal consumption correlation data during the coal consumption stage, ensures the accuracy of the model. The weight calculation of the target coal pile using the determined density model improves the accuracy of coal pile weight calculation.

The application discloses a kind of based on Sentinel-2 remote sensing image's open coal mine area exposed coal extraction method, belong to exposed coal extraction field, the extraction method specific steps are as follows: I: obtain and pre-process Sentinel-2 image data, then according to the processed Sentinel-2 image data, the spectral feature difference of different ground objects is analyzed;The application can accurately suppress the interference of different easily confused ground objects, effectively capture the boundary between coal and non-coal ground, even for small-scale coal piles, scattered irregular small pits and slender shape exposed coal area can also be accurately identified, and it is suitable for more complex land cover type mine group extraction;At the same time, the application effectively solves the problem of ground object label conflict, reduces the pixel misjudgment condition, improves the accuracy of ground object classification, ensures that the extraction result is highly consistent with the actual geographical features of the mining area, improves the efficiency and standardization of exposed coal extraction work.

This invention discloses an unmanned system for a coal pile reclaimer in a smart power plant, relating to the field of intelligent management and control technology for power plant coal yards. It includes modules for perception modeling, comparative analysis, assessment and early warning, planning and decision-making, and compilation and control. The perception modeling module periodically scans the coal pile outline using a 3D scanning network to generate a real-time surface point cloud model. The comparative analysis module performs differential calculations with the 3D terrain benchmark model of the coal yard to extract areas of volume change and volume, and determines the real-time physical properties of the coal pile by combining inbound and outbound information. The assessment and early warning module calculates the internal temperature conduction and oxidation reaction rate of the coal pile, forming a temperature distribution map at different depths and a spontaneous combustion risk level map. The planning and decision-making module generates an operation plan including the reclaiming sequence, depth, and path. The compilation and control module converts the plan into instructions and issues them to the stacker-reclaimer for execution. This system achieves accurate coal pile perception, stratified assessment of spontaneous combustion risk, and automated unmanned operation of the stacker-reclaimer.

The utility model relates to a flat coal machine technical field, specifically disclose a flat coal machine drum coal guide plate, include: flat coal machine main part, the flat coal machine main part is rotationally connected with flat coal spiral body, and the flat coal spiral body axial both sides are equipped with inner arc scraper, and the inner arc scraper side is fixedly connected with flat arc scraper, and the flat arc scraper other side is fixedly connected with outer arc scraper, and the inner arc scraper, flat arc scraper and outer arc scraper carry out the finishing to the coal pile after flat coal, and the flat arc scraper is equipped with adjusting assembly between flat coal machine main part, and adjusting assembly carries out height adjustment to the inner arc scraper, flat arc scraper and outer arc scraper, and the continuous smooth coal rake profile is constituted through the inner arc, flat arc, outer arc scraper, effectively blocks coal material to the middle gathering, eliminates both sides ridge, guarantees the coal pile even, and the multiple sets of installation holes of fixed half ring and movable half ring are matched through adjusting assembly, realizes the grading height adjustment, adapts to different carriages, and efficient convenient, and the overall cooperation greatly promotes flat coal quality and improves flat coal efficiency.

This invention discloses a method for 3D reconstruction of coal piles based on multi-scale feature fusion, relating to the field of machine vision technology. The method includes: extracting structured features from the residual point cloud of a coal pile; enhancing these features through a three-level multi-scale pyramid and dual-path global-local fusion; then fusing semantic and geometric information using a dual-branch approach of linear global attention and local geometric attention; introducing roughness perception and density adaptive FFN to generate robust global features; and finally reconstructing a high-fidelity point cloud using a progressive coarse-fine generator combined with a multi-resolution output mechanism. This process integrates multi-scale features, attention mechanisms, and progressive generation strategies, significantly improving the accuracy, efficiency, and robustness of the reconstruction, effectively solving the problem of inaccurate 3D modeling of coal piles due to severe missing features.

The embodiment of the present application relates to the technical field of coal storage equipment, and discloses a long-term coal storage method based on liquid-gas phase change. The method comprises the following steps: connecting a liquid storage container containing a cooling medium with a gasifier; gasifying the cooling medium through the gasifier; sending the cooling medium to the bottom of a coal pile through a gas sending pipeline at a first flow rate; sending the cooling medium to the bottom of the coal pile through the gas sending pipeline at a second flow rate greater than the first flow rate; when the amount of the cooling medium released reaches a first preset value, stopping the release of the cooling medium and disconnecting the liquid storage container from the gasifier. Since the gasified cooling medium has a high pressure and a low temperature, the pressure of the cooling medium decreases after escaping through the gas sending hole, thereby further reducing the temperature. Therefore, the cooling medium entering the coal pile absorbs a large amount of heat, thereby achieving the cooling of the coal pile. The temperature of the cooled coal pile is relatively low, and the probability of spontaneous combustion is significantly reduced, thereby achieving the long-term and safe storage of coal.

This utility model relates to the field of sampling device technology, and more particularly to a submersible sampling device, including a sampling mechanism that can be submerged into a coal pile. The sampling mechanism includes an outer sampling barrel and an inner sampling barrel movably connected inside the outer sampling barrel. The inner sampling barrel has multiple sampling chambers arranged along its axial direction. Both the outer and inner sampling barrels have inlets for feeding material into the sampling chambers. When the inlets on the inner and outer sampling barrels are aligned, this utility model submerges the outer and inner sampling barrels into the coal pile to a certain depth, aligning the inlets on the outer and inner sampling barrels. At this time, all sampling chambers are opened, and coal at different depths corresponding to each sampling chamber enters the sampling chamber and is collected. Finally, the discharge ports on the outer and inner sampling barrels are aligned to discharge material simultaneously. The operation process is simple and improves sampling efficiency.

The present application relates to the technical field of coal-fired power plant steel trestle fire prevention and control, and in particular to a fire monitoring and prevention equipment for a coal-fired power plant steel trestle, comprising a conveying frame, a suspension assembly, an adjusting assembly and a temperature measuring assembly. The conveying frame is annular, and the suspension assembly is used to move and cooperate multiple temperature measuring assemblies on the conveying frame. The multiple temperature measuring assemblies can be independently adjusted in position under the driving of the multiple suspension assemblies, so that the equipment can adjust the position of the temperature measuring assembly according to the distribution of the coal pile on the coal-fired power plant steel trestle. More temperature measuring assemblies are arranged in the area where more coal is distributed and where coal spontaneous combustion is more likely to occur on the coal-fired power plant steel trestle, so that the monitoring of the equipment on the fire can be flexibly adjusted according to the situation of the coal transported on the coal-fired power plant steel trestle.