Automatic loading equipment for fuel handling and scheduling method thereof

Abstract

This invention discloses an automatic loading device and its scheduling method for fuel transportation. The invention relates to the field of automatic loading equipment for fuel transportation, comprising a column, a mounting frame, a middle hopper, an upper hopper, a lower hopper, and a control module. It is further integrated with a first weighing module, a second weighing module, a discharge mechanism, a hydraulic hopper, a material distribution mechanism, and a high-frequency radar level gauge to form a multi-level metering and distribution system. This invention uses the first weighing module to measure the fuel in the middle hopper in real time, and combines this with the discharge mechanism to periodically interrupt the continuous coal flow, thereby discretizing the continuous coal flow into batch fuel units with clearly defined weight boundaries. The hydraulic hopper enables the buffer transfer of batch fuel to the lower hopper, and the second weighing module and the material distribution mechanism achieve quantitative segmented discharge of fuel and uniform distribution on the conveyor belt. This invention has the advantages of improving the accuracy and real-time scheduling capability of fuel transportation.

Description

Technical Field

[0001] This invention relates to the field of automatic loading equipment for fuel transportation, specifically to an automatic loading device for fuel transportation and its scheduling method. Background Technology

[0002] In the fuel transportation system of thermal power plants, fuel is usually continuously loaded from the mining area or coal storage yard into the conveying system by material handling equipment such as excavators and loaders, and then transported to the boiler raw material silo via belt conveyor or transfer equipment. The existing transportation method is mainly based on continuous flow coal supply, which is characterized by uninterrupted coal supply, large flow fluctuations, and strong instantaneous uncertainty. During this process, the fuel on the conveyor belt is in a random accumulation state, lacking clear single batch boundaries and making it difficult to accurately measure the weight of fuel entering the conveying line in real time within a unit of time.

[0003] Currently, the industry typically uses conveyor belt scales, weighing feeders, or end-of-line silos to count fuel. However, these methods are mostly post-event statistical or local cross-sectional metering methods, which cannot identify and track batches of fuel continuously entering from the beginning of the conveying line. At the same time, due to the impact of falling material, changes in the accumulation pattern, and fluctuations in conveying speed during the conveying process, the spatial distribution of coal has obvious instability, making it difficult to accurately invert the amount of coal in transit at a certain moment in the conveying line.

[0004] Furthermore, under the condition of frequent changes in boiler load, fuel demand has obvious dynamic adjustment characteristics, requiring the dispatching system to be able to grasp the weight, location and arrival time of each batch of fuel in the conveying line in real time. However, the existing system can usually only obtain the instantaneous load or cumulative flow data of the conveyor belt, lacks the ability to identify batch-level fuel units, and cannot establish a complete space-time mapping relationship of fuel from the loading end to the consumption end, which leads to the lag in the adjustment of dispatching strategy and insufficient matching accuracy between fuel supply and boiler load.

[0005] Therefore, there is an urgent need for an automated loading and transportation equipment that can achieve continuous discrete metering of incoming coal at the beginning of the transportation process, batch identification and location tracking during the transportation process, and synchronously acquire information on fuel weight, volume and density, so as to improve the accuracy of fuel transportation and real-time scheduling capabilities. Summary of the Invention

[0006] The purpose of this invention is to provide an automated loading device and its scheduling method for fuel transportation, so as to solve the problems mentioned in the background art.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution: an automatic loading device for fuel transportation, comprising a column and a control module. An installation frame is mounted on the upper side of the column via a first weighing module. A central hopper is mounted on the inner wall of the installation frame. A hydraulically operated hopper is mounted at the lower end of the central hopper. An upper hopper is mounted on the upper side of the installation frame via a support frame. A discharge mechanism is mounted on the lower side of the upper hopper. A lower hopper is mounted on the side wall of the column below the central hopper. A second weighing module is mounted between the lower hopper and the side wall of the column. A material distribution mechanism is mounted on the lower side of the lower hopper. A high-frequency radar level gauge is mounted on the upper side of the inner wall of the lower hopper. The first weighing module is used to detect the pressure under the installation frame and provide feedback on the weight of the material in the central hopper. The second weighing module is used to detect the pressure under the lower hopper and provide feedback on changes in material weight. The hydraulically operated hopper and the high-frequency radar level gauge are both controlled by the control module to achieve material flow control and level detection.

[0008] According to the above technical solution, the material discharge mechanism consists of an upper discharge port, a sliding plate, a lower discharge port, a first motor, and a first threaded rod. The first motor drives the first threaded rod to move the sliding plate, so that the upper discharge port and the lower discharge port are aligned or misaligned, thereby realizing the feeding on / off control.

[0009] According to the above technical solution, the material feeding mechanism includes a support, a material feeding frame, a connecting arm, a second motor, a second threaded rod, and a sealing plate. The sealing plate is driven by the second motor to slide and adjust relative to the bottom opening of the lower hopper, so as to realize controllable material discharge opening and quantitative discharge.

[0010] According to the above technical solution, the high-frequency radar level gauge is used to detect the height of the four corners of the material inside the lower hopper and the height of the top of the pile. The control module calculates the volume and density of the material by combining the geometric dimensions of the hopper and the weighing data, so as to realize the real-time inversion of the fuel state.

[0011] The present invention also provides a scheduling method based on the above-mentioned automatic loading equipment, including continuous coal interception and metering, graded buffering and quantitative discharge, synchronous scheduling of coal segment forming and conveying, and volume inversion and density calculation steps. By discretizing the continuous fuel flow into batch units with clear weight and time labels at the loading end, and establishing a spatial position mapping relationship in combination with the conveyor belt operating parameters, the real-time visualization and calculable scheduling of fuel in transit within the conveying line can be realized.

[0012] Compared with the prior art, the beneficial effects achieved by the present invention are:

[0013] 1. By setting up an upper hopper, a middle hopper, a discharge mechanism, and a hydraulically operated hopper, and cooperating with the first weighing module to perform real-time weighing control on the middle hopper, the system can realize the periodic cutting off and quantitative measurement of continuous coal supply, transforming irregular continuous coal flow into discrete batch coal with clear weight boundaries. This solves the problem of not being able to obtain the weight of a single batch of fuel and the unclear amount of coal in transit during traditional transportation processes, thereby improving fuel metering accuracy and traceability.

[0014] 2. By setting up an upper material cutting mechanism consisting of a first motor, a first threaded rod and a sliding plate, the upper discharge port and the lower discharge port can be quickly staggered and closed, so that the coal supply process of the upper hopper can be accurately cut off according to the weighing signal. At the same time, stable interval coal sections are formed by periodic opening and closing, thereby realizing batch delivery of fuel and identifiable management in the time-space dimension, and improving the scheduling controllability of the delivery process.

[0015] 3. By setting up a lower hopper, a second weighing module and a material distribution mechanism, and cooperating with a second motor, a second threaded rod and a sealing plate to form an adjustable discharge control structure, continuous weighing feedback adjustment and dynamic control of the opening area of ​​a single batch of coal can be realized, so that the fuel can be discharged evenly in segments according to the preset weight and form a regular coal segment structure on the conveyor belt, thereby improving the uniformity of load per unit length of conveyor belt and the stability of boiler coal supply.

[0016] 4. By setting up a high-frequency radar level gauge and a truncated square pyramid structure in the lower hopper, and combining it with real-time weight data from the second weighing module, a volume inversion and density calculation mechanism based on a geometric model is established. This enables the synchronous acquisition of the fuel accumulation volume, density, and spatial distribution in the hopper. Furthermore, it is coupled with the transportation time and location data to construct a digital model of the fuel in transit, thereby achieving visualization, calculation, and predictive control capabilities throughout the entire fuel transportation process. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0018] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the temporary storage section of the present invention;

[0020] Figure 3 This is a schematic diagram of the mounting frame and upper hopper structure of the present invention;

[0021] Figure 4 This is a schematic diagram of the upper hopper structure of the present invention;

[0022] Figure 5 This is a schematic diagram of the material discharge mechanism of the present invention;

[0023] Figure 6 This is a schematic diagram of the middle and lower hopper structures of the present invention;

[0024] Figure 7 This is a schematic diagram of the lower hopper structure of the present invention;

[0025] Figure 8 This is a schematic diagram of the fabric mechanism structure of the present invention;

[0026] Figure 9 This is a schematic diagram of the cross-sectional structure of the lower hopper of the present invention;

[0027] In the diagram: 1. Column; 2. First weighing module; 3. Mounting frame; 4. Middle hopper; 5. Hydraulic opening and closing hopper; 6. Support frame; 7. Upper hopper; 8. Discharge mechanism; 9. Lower hopper; 10. Second weighing module; 11. Fabric distribution mechanism; 12. High-frequency radar level gauge; 801. Upper discharge port; 802. Sliding plate; 803. Lower discharge port; 804. First motor; 805. First threaded rod; 101. Bracket; 102. Fabric distribution frame; 103. Connecting arm; 104. Second motor; 105. Second threaded rod; 106. Sealing plate. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] Example 1: Please refer to Figure 1-7The present invention provides a technical solution: an automatic loading device for fuel transportation, comprising a column 1 and a control module. A mounting frame 3 is mounted on the upper side of the column 1 via a first weighing module 2. A central hopper 4 is mounted on the inner wall of the mounting frame 3. A hydraulically operated hopper 5 is mounted at the lower end of the central hopper 4. An upper hopper 7 is mounted on the upper side of the mounting frame 3 via a support frame 6. A discharge mechanism 8 is mounted below the upper hopper 7. A lower hopper 9 is mounted on the side wall of the column 1 below the central hopper 4. The lower hopper 9 is connected to the column. A second weighing module 10 is provided between the side walls, a material distribution mechanism 11 is provided on the lower side of the lower hopper 9, and a high-frequency radar level gauge 12 is provided on the upper side of the inner wall of the lower hopper 9. The first weighing module 2 is used to detect the downward pressure of the mounting frame 3 to realize the weight detection of the material in the middle hopper 4, and the second weighing module 10 is used to detect the downward pressure of the lower hopper 9 to realize the monitoring of the change in the weight of the discharged material. The hydraulic opening and closing hopper 5 and the high-frequency radar level gauge 12 are both controlled by the control module to realize the material flow control and material level detection.

[0030] This embodiment is used to realize single-batch quantitative metering and in-transit coal weight tracking during continuous coal supply. Before the equipment is put into use, the entire device is first fixedly installed above the starting section of the conveyor belt by the column 1, so that the discharge direction of the material distribution mechanism 11 corresponds to the running direction of the conveyor belt. At the same time, the control module is connected to the first weighing module 2, the hydraulic opening and closing bucket 5, the first motor 804 and the conveyor belt control terminal respectively, and the target loading weight of a single batch is preset. During operation, the upstream bucket wheel excavator, excavator or transfer conveyor continuously supplies coal to the upper hopper 7. At this time, the discharge mechanism 8 remains open, and fuel passes through several upper discharge ports. After passing through the corresponding lower discharge port 803, fuel 801 enters the middle hopper 4. Since the middle hopper 4 is placed on top of the first weighing module 2, the first weighing module 2 can continuously monitor the change in fuel weight within the middle hopper 4. As fuel continuously enters the middle hopper 4, the detected value of the first weighing module 2 continuously increases. When the detected weight reaches the preset single batch weight, the control module immediately sends a control command to the first motor 804. The first motor 804 drives the first threaded rod 805 to rotate, and the first threaded rod 805 drives the sliding plate 802 to move laterally along the bottom of the upper hopper 7, causing the lower discharge port 803 to gradually... The upper discharge port 801 is offset from its position. When the two are completely misaligned, the sliding plate 802 blocks the upper discharge port 801, thereby cutting off the coal supply path from the upper hopper 7 to the middle hopper 4. Since the upper discharge port 801 adopts a toothed edge structure, it can reduce coal flow bridging and increase the discharge speed under normal discharge conditions. The lateral blocking method of the sliding plate 802 can ensure rapid cutting and reliable blocking, avoiding metering errors caused by inertial discharge. After the cutting is completed, the control module controls the hydraulic opening and closing hopper 5 to open, and the fuel that has been weighed and metered in the middle hopper 4 is discharged downward as a whole. Since the middle hopper 4 only stores the fuel that has been weighed and metered... Since the fuel is discharged in a batch, the weight of the discharged fuel is known and accurate. The control module records the weight of the batch of fuel and the discharge timestamp, and establishes a corresponding relationship with the conveyor belt speed, conveying distance and subsequent conveying time. This allows for the accurate calculation of the location of the batch of fuel at any given time and the cumulative weight of coal in transit along the conveying line. After the fuel in the middle hopper 4 is emptied, the control module controls the hydraulic hopper 5 to close and simultaneously controls the discharge mechanism 8 to reopen, allowing the next batch of fuel to enter the middle hopper 4 for metering. This cyclical working process enables batch weighing management under continuous coal supply conditions.

[0031] Example 2: Please refer to Figure 1-9Based on Embodiment 1, the present invention provides a technical solution: the discharge mechanism 8 includes an upper discharge port 801, a sliding plate 802, a lower discharge port 803, a first motor 804, and a first threaded rod 805. The upper discharge port 801 is opened on the lower side of the upper hopper 7. The sliding plate 802 is slidably connected to the upper hopper 7 and driven to move by the first threaded rod 805. The lower discharge port 803 is set on the sliding plate 802 and is correspondingly set to the upper discharge port 801. The upper discharge port 801 and the lower discharge port 803 are aligned and connected or misaligned and closed by the movement of the sliding plate 802, thereby realizing the opening and closing control of the upper hopper 7 to feed material to the middle hopper 4, and improving the discharge efficiency through the toothed structure of the upper discharge port 801.

[0032] This embodiment is used to realize fuel batch identification and conveying location tracking. After the batch metering of the middle hopper 4 is completed in Embodiment 1, the hydraulically operated hopper 5 is opened, and the fuel inside the middle hopper 4 enters the lower hopper 9 for temporary storage by gravity. Since the upper hopper 7 and the middle hopper 4 have restarted the next round of metering, the lower hopper 9 plays the role of buffering the metered coal, so that the metering process and the feeding process can be carried out synchronously without interference. After the fuel enters the lower hopper 9, the control module starts the second motor 104 according to the running status of the conveyor belt. The second motor 104 drives the second threaded rod 105 to rotate. The second threaded rod 105 drives the sealing plate 106 to move along the bottom opening direction of the lower hopper 9, thereby gradually opening the discharge channel. The fuel falls into the feeding frame 102 through the bottom opening of the lower hopper 9. Since the feeding frame 102 is equipped with an inclined baffle structure, the coal flow is first guided by the baffle during the falling process, which restricts the diffusion trend of the coal flow; at the same time, the outer frame The structure limits the coal flow on both sides, ensuring a stable width of the coal flow that finally falls onto the conveyor belt surface. Through this structural cooperation, the originally randomly scattered coal flow can be organized into coal segments with relatively fixed widths and relatively uniform heights. Since the sealing plate 106 can be closed after the previous batch of fuel is discharged, and the next batch of fuel needs to wait to be reopened before it can be discharged, a natural interval area is formed between adjacent coal segments. The control module uses the weight record formed at the first weighing module 2 for each batch of fuel, the opening time record of the hydraulic opening and closing hopper 5, and the discharge time record of the material distribution mechanism 11 to synchronize and calibrate with the running time fed back by the conveyor belt control terminal, thereby establishing a unique time tag for each coal segment. During subsequent conveying, the control module can calculate the current position of any batch of coal segments based on the conveyor belt speed, realizing independent tracking and management of each batch of fuel, and enabling the scheduling system to accurately grasp the quantity and location distribution of fuel entering the conveyor line during a certain period of time.

[0033] Example 3: Please refer to Figure 1-9Based on Embodiment 1 and Embodiment 2, the present invention provides a technical solution: the lower hopper 9 is coaxially arranged with the middle hopper 4 and receives the material discharged from the middle hopper 4. The side wall of the lower hopper 9 is supported by the second weighing module 10 to realize weight detection. A material distribution mechanism 11 is arranged on its lower side. The material distribution mechanism 11 includes a bracket 101, a material distribution frame 102, a connecting arm 103, a second motor 104, a second threaded rod 105, and a sealing plate 106. The sealing plate 106 is slidably engaged with the lower opening of the lower hopper 9. The sealing plate 106 is driven by the second motor 104 to adjust the discharge opening, thereby realizing quantitative fuel discharge and coal section forming control of the conveyor belt. The material distribution frame 102 is used to limit and shape the falling material.

[0034] This embodiment is used to control the weight of coal sections and adjust the loading capacity per unit length. After fuel enters the lower hopper 9, the lower hopper 9 is mounted on the upper side of the second weighing module 10. Therefore, the second weighing module 10 can detect the change in fuel content in the lower hopper 9 in real time. The control module generates a corresponding discharge command based on the preset target coal section weight and controls the second motor 104 to drive the sealing plate 106 to open. After the sealing plate 106 moves, the fuel in the lower hopper 9 enters the distribution frame 102 through the bottom opening and falls onto the surface of the conveyor belt. At this time, the second weighing module 10 continuously detects the weight change data. The control module calculates the actual discharge rate based on the weight reduction value per unit time and compares the actual discharge rate with the target discharge rate. When the discharge rate is too low, the control module controls the second motor 104 to continue driving the sealing plate 106 to expand the opening area and increase the discharge volume per unit time; when the discharge rate is too high, the opening area is reduced to decrease the discharge speed. Through the above closed-loop adjustment method, To ensure the fuel discharge rate remains within the target range, when the second weighing module 10 detects that the cumulative weight reduction reaches the preset coal segment weight, the control module immediately controls the sealing plate 106 to close, ending the current coal segment discharge. Since the discharge volume is controlled by real-time weight changes throughout the process, the resulting coal segment weight can maintain a high degree of consistency. Furthermore, the control module can also synchronously acquire conveyor belt speed data and dynamically correct the target discharge rate based on conveyor belt speed changes. When the conveyor belt speed increases, the discharge speed is increased accordingly to keep the amount of coal on the unit length of the conveyor belt stable; when the conveyor belt speed decreases, the discharge speed is decreased accordingly to avoid local accumulation. Through the above control method, not only can independent coal segments with clearly defined weights be formed, but the active adjustment of the load on the unit length of the conveyor belt surface can also be achieved. By installing multiple devices on the conveyor belt and connecting them with the control module, the discharge times can be staggered, providing basic data support for precise matching of boiler load.

[0035] Example 4: Please refer to Figure 1-9Based on Embodiments 1, 2, and 3, the present invention provides a technical solution: a high-frequency radar level gauge 12 is installed on the upper side of the inner wall of the lower hopper 9 to detect the height of the four corners of the material and the height of the top of the pile. The control module calculates the volume of the material based on the preset geometric structure parameters of the lower hopper 9 and the material level detection data, and calculates the material density by combining the weight detected by the second weighing module 10, thereby realizing the real-time inversion of the fuel accumulation state and the digital modeling of the fuel state in transit, and providing basic data support of weight, volume, and density for transportation scheduling.

[0036] This embodiment is used to calculate fuel density and digitally model fuel in transit. After fuel enters the lower hopper 9, the high-frequency radar level gauge 12 continuously scans and detects the state of the coal pile inside the lower hopper 9. Since the lower hopper 9 adopts a truncated square pyramid structure with pre-known dimensions, the control module can call the hopper geometric parameters stored in the system. The high-frequency radar level gauge 12 obtains the height data of the four corner areas of the coal pile and the height data of the central pile top. The height of the four corners is used to determine the height range of the area where the coal is in contact with the inner wall of the hopper, and the height of the central pile top is used to determine the height of the top cone formed by the natural accumulation of the coal pile. Based on the geometric dimension parameters, the four corner height parameters, and the pile top height parameters of the lower hopper 9, the control module calculates the volume of the part of the coal pile in contact with the inner wall of the hopper and the volume of the naturally accumulated part at the top, and further obtains the total volume of fuel inside the lower hopper 9. At the same time, the second weighing module 10 continuously detects the corresponding time. The control module calculates the bulk density information of the current batch of fuel by comparing the weight data with the volume data. Then, the control module integrates the batch weight data obtained by the first weighing module 2, the real-time weight data obtained by the second weighing module 10, the volume data obtained by the high-frequency radar level gauge 12, the discharge time data of the material distribution mechanism 11, and the operation data provided by the conveyor belt control terminal to establish a database of weight, volume, density, discharge time, running distance, and estimated arrival time for each batch of fuel. When the boiler load changes and the coal supply strategy needs to be adjusted, the dispatching system can not only know how much fuel is still in transit in the conveying line, but also the density, spatial location, and arrival time of the corresponding fuel. This enables data-driven dispatching based on the actual state of the fuel, improving fuel transportation accuracy, boiler response speed, and the level of visualized management of the conveying process.

[0037] Furthermore, in this embodiment, the calculation of fuel volume is based on the geometric constraint that the lower hopper 9 is a truncated square pyramid. Let the upper side length of the lower hopper 9 be b, the lower side length be a, and the total height of the hopper be n. Then, the side length s(z) of the cross-section at any height z satisfies the linear relationship s(z) = a + (ba)z / n. Based on this relationship, the fuel volume inside the hopper can be decomposed into two parts: the lower wall-attached filling volume and the upper natural accumulation volume. The wall-attached filling area corresponds to height x, and its volume can be calculated using the formula for the volume of a frustum: V1 = x / 3(a² + a·s(x) + s(x)²). The natural accumulation area corresponds to height y, and its volume is approximately equal to s(x). The base is a square pyramid with a volume V2 = 1 / 3·s(x)²·y. From this, the total fuel volume V = V1 + V2 in the lower hopper 9 can be obtained. Further, combined with the real-time weight W output by the second weighing module 10, the apparent density of the fuel ρ = W / V can be obtained. Through the coupling calculation of the above geometric model and weighing data, the control module can invert the fuel volume and density in real time without additional calibration, thereby providing basic parameter support for the estimation of coal quantity in transit and the prediction of transportation status.

[0038] A scheduling method for fuel transportation includes the following steps:

[0039] Step 1, Equipment Initialization and Parameter Calibration: Install the automatic loading equipment at the beginning of the conveyor belt, so that the upper hopper 7, the middle hopper 4 and the lower hopper 9 are arranged coaxially. Connect the first weighing module 2, the second weighing module 10, the discharge mechanism 8, the hydraulic opening and closing hopper 5, the material distribution mechanism 11 and the high-frequency radar level gauge 12 to the control module. Preset the target weight of a single batch and the running speed parameters of the conveyor belt, and complete the zero-point calibration and no-load calibration of the system.

[0040] Step 2, continuous coal supply interception and metering step: The upstream coal supply equipment continuously delivers fuel to the upper hopper 7, the discharge mechanism 8 is in the open state, and the fuel enters the middle hopper 4 through the corresponding channels of the upper discharge port 801 and the lower discharge port 803. The first weighing module 2 detects the pressure change of the mounting frame 3 in real time to obtain the weight of the fuel in the middle hopper 4. When the detected weight reaches the preset single batch weight, the control module controls the first motor 804 to drive the first threaded rod 805 to move the sliding plate 802, so that the upper discharge port 801 and the lower discharge port 803 are misaligned and closed, thereby cutting off the feeding path from the upper hopper 7 to the middle hopper 4;

[0041] Step 3, graded buffering and quantitative discharge: After a single batch of metering is completed in the middle hopper 4, the control module controls the hydraulic opening and closing hopper 5 to open, allowing the fuel in the middle hopper 4 to fall into the lower hopper 9 for buffering. At the same time, the control module controls the discharge mechanism 8 to reopen to enter the next metering cycle. When discharge is required, the control module drives the second motor 104 to drive the second threaded rod 105 to move, causing the sealing plate 106 to slide relative to the bottom of the lower hopper 9 to open the discharge channel. The fuel falls through the distribution frame 102 onto the surface of the conveyor belt to form a coal section structure. The second weighing module 10 detects the weight change in real time and controls the opening of the sealing plate 106 based on the weight reduction to achieve quantitative and segmented discharge.

[0042] Step 4, Coal Segment Formation and Conveying Synchronous Scheduling Step: The material distribution mechanism 11 uses inclined baffles and outer frames to limit and shape the fuel falling material, so that the coal material forms a coal segment structure with relatively consistent width and thickness on the conveyor belt. The control module synchronously records the discharge time and weight information of each coal segment, and timestamps it with the conveyor belt running speed and displacement data, thereby establishing the spatial position mapping relationship of the coal segment in the conveying line and realizing the traceable scheduling of each batch of fuel.

[0043] Step 5, Volume Inversion and Density Calculation: The high-frequency radar level gauge 12 detects the height of the fuel at the four corners and the top of the pile inside the lower hopper 9 in real time. Combined with the preset geometric dimensions of the lower hopper 9, the fuel accumulation volume is calculated, and the ratio is calculated with the weight data detected by the second weighing module 10 to obtain the fuel density. The control module integrates the weight, volume, density and emission time data to form an in-transit fuel status database, which is used for dynamic scheduling and coal supply strategy optimization under boiler load change conditions.

[0044] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0045] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An automated loading apparatus for fuel distribution, characterized by: The system includes a column (1) and a control module mounted thereon. A mounting frame (3) is supported on the upper side of the column (1) by a first weighing module (2). A central hopper (4) for forming a quantitative metering space is located within the mounting frame (3). A hydraulically operated hopper (5) for controlling the periodic release of metered materials is located at the lower end of the central hopper (4). An upper hopper (7) for continuously receiving incoming coal is mounted on the upper side of the mounting frame (3) via a support frame (6). A mechanism for achieving continuous... The material flow discretization and truncation discharge mechanism (8) has a lower hopper (9) for forming a secondary buffer and redistribution unit located on the side wall of the column (1) below the middle hopper (4). A second weighing module (10) for detecting changes in secondary output quality is provided between the lower hopper (9) and the column (1). A material distribution mechanism (11) for forming uniform material distribution on the conveyor belt is provided on the lower side of the lower hopper (9). A high-frequency radar level gauge (12) for acquiring the spatial shape of the material pile is provided on the upper side of the inner wall of the lower hopper (9). The control module periodically opens and closes the discharge mechanism (8) based on the mass change signal of the middle hopper (4) detected by the first weighing module (2), so as to discretize the fuel flow continuously entering the upper hopper (7) into batch fuel units with defined weight boundaries, and transfer the batch fuel units to the lower hopper (9) to form a buffer unit through the hydraulic opening and closing hopper (5). The control module further dynamically adjusts the opening of the feeding mechanism (11) based on the weight change signal detected by the second weighing module (10), so that the fuel output from the lower hopper (9) is continuously or intermittently released at the target weight rate and forms a batch coal section structure with a preset spacing on the surface of the conveyor belt. Meanwhile, the control module performs correlation calculations on the generation time, release time, and corresponding conveyor belt running speed of each batch of fuel units to establish a spatial position mapping relationship of the batch of fuel units in the conveying line. Furthermore, the control module performs inversion calculations on the fuel volume and density in the lower hopper (9) based on the height information of the material pile space obtained by the high-frequency radar level gauge (12) and the mass information obtained by the second weighing module (10), thereby synchronously updating the physical state of the batch fuel units and realizing dynamic digital characterization and scheduling control of the weight, spatial position and density of fuel during the transportation process.

2. An automatic loading apparatus for fuel transfer according to claim 1, characterized in that: The mounting frame (3) is placed on the upper side of the first weighing module (2). The lower side of the first weighing module (2) is fixedly connected to the outer wall of the column (1). The upper side of the outer wall of the mounting frame (3) is fixedly connected to the upper side of the outer wall of the upper hopper (7) through the support frame (6). The inner wall of the mounting frame (3) is fixedly connected to the upper side of the side wall of the middle hopper (4). The lower side of the upper hopper (7) extends into the interior of the middle hopper (4). The lower side of the middle hopper (4) extends into the upper side of the interior of the lower hopper (9).

3. An automatic loading apparatus for fuel transshipment according to claim 2, characterized in that: The discharge mechanism (8) includes several upper discharge ports (801), which are openings on the lower side of the upper hopper (7) for discharging materials downwards. A sliding plate (802) is provided on the lower side of the upper hopper (7). The outer wall of the sliding plate (802) is slidably connected to the outer wall of the upper hopper (7). Several lower discharge ports (803) are provided on the sliding plate (802). The positions of the several lower discharge ports (803) correspond to the positions of the upper discharge ports (801). A first motor (804) is fixedly connected to one side of the outer wall of the middle hopper (4). A first threaded rod (805) is fixedly connected to the output end of the first motor (804). One end of the first threaded rod (805) extends to the lower side of the sliding plate (802) and is threadedly engaged with the inner wall of the sliding plate (802).

4. An automatic loading apparatus for fuel transshipment according to claim 3, wherein: The side wall of the middle hopper (4) has an opening between the sliding plate (802) and the first motor (804) to accommodate the movement of the sliding plate (802). After the sliding plate (802) moves to the point where the lower discharge port (803) and the upper discharge port (801) intersect, the sliding plate (802) closes the lower side of the upper discharge port (801).

5. An automatic loading apparatus for fuel transshipment according to claim 4, characterized in that: The upper discharge port (801) has a toothed edge, and the lower side of the upper hopper (7) has a rectangular structure. Several upper discharge ports (801) are evenly arranged to increase the downward discharge speed of the upper hopper (7).

6. An automatic loading apparatus for fuel transshipment according to claim 5, wherein: The side wall of the column (1) is fixedly connected to the lower side of the second weighing module (10), the side wall of the lower hopper (9) is mounted on the upper side of the second weighing module (10), the lower hopper (9) and the middle hopper (4) are coaxially arranged, and the upper inner wall of the lower hopper (9) and the lower inner wall of the lower hopper (9) are coaxially arranged.

7. An automatic loading apparatus for fuel transshipment according to claim 6, wherein: The fabric feeding mechanism (11) includes a support (101), the outer wall of the support (101) is fixedly connected to the outer wall of the column (1), the inner wall of the support (101) is fixedly connected to a fabric frame (102), the upper side of the fabric frame (102) is correspondingly set to the lower opening of the lower hopper (9), the outer wall of the lower hopper (9) is fixedly connected to a connecting arm (103), a second motor (104) is fixedly connected to one side of the connecting arm (103), the output end of the second motor (104) is fixedly connected to a second threaded rod (105), the outer wall of the second threaded rod (105) is threadedly fitted with a sealing plate (106), the outer wall of the sealing plate (106) is slidably fitted with the lower inner wall of the lower hopper (9).

8. An automatic loading apparatus for fuel transshipment according to claim 7, wherein: The fabric frame (102) is located below the lower hopper (9), and the inner wall of the fabric frame (102) is provided with an inclined baffle and an outer frame to limit the discharge height and width. The lower opening and the sealing plate (106) of the lower hopper (9) are both inclined to prevent material jamming.

9. An automatic loading apparatus for fuel transshipment according to claim 8, wherein: The high-frequency radar level gauge (12) is used to detect the height of the four corners and the height of the top of the material inside the lower hopper (9). The control module calculates the material volume by using the inner diameter data of the lower hopper (9) and the height data of the material pile. The second weighing module (10) detects the weight and the material volume to calculate the material density.

10. A scheduling method for fuel handling, for the automatic loading device for fuel handling according to any one of claims 1-9, characterized in that: Includes the following steps: Step 1, Equipment initialization and parameter calibration: Install the automatic loading equipment described in claims 1-9 on the starting section of the conveyor belt, so that the upper hopper (7), the middle hopper (4) and the lower hopper (9) are arranged coaxially, and connect the first weighing module (2), the second weighing module (10), the discharge mechanism (8), the hydraulic opening and closing hopper (5), the material distribution mechanism (11) and the high-frequency radar level gauge (12) to the control module. Preset the target weight of a single batch and the running speed parameters of the conveyor belt, and complete the zero-point calibration and no-load calibration of the system. Step 2, continuous coal interception and metering steps: The upstream coal supply equipment continuously delivers fuel to the upper hopper (7), the discharge mechanism (8) is in the open state, and the fuel enters the middle hopper (4) through the corresponding channels of the upper discharge port (801) and the lower discharge port (803). The first weighing module (2) detects the pressure change of the mounting frame (3) in real time to obtain the weight of the fuel in the middle hopper (4). When the detected weight reaches the preset single batch weight, the control module controls the first motor (804) to drive the first threaded rod (805) to drive the sliding plate (802) to move, so that the upper discharge port (801) and the lower discharge port (803) are misaligned and closed, thereby cutting off the feeding path from the upper hopper (7) to the middle hopper (4); Step 3, graded buffering and quantitative discharge steps: After a single batch of metering is completed in the middle hopper (4), the control module controls the hydraulic opening and closing hopper (5) to open, so that the fuel in the middle hopper (4) falls into the lower hopper (9) for buffering. At the same time, the discharge mechanism (8) is controlled to reopen to enter the next metering cycle. When discharge is required, the control module drives the second motor (104) to drive the second threaded rod (105) to move, so that the sealing plate (106) slides relative to the bottom of the lower hopper (9) to open the discharge channel. The fuel falls onto the surface of the conveyor belt through the distribution frame (102) to form a coal section structure. The weight change is detected in real time by the second weighing module (10), and the opening of the sealing plate (106) is controlled according to the amount of weight reduction to achieve quantitative segmented discharge. Step 4, Coal segment forming and conveying synchronous scheduling steps: The material distribution mechanism (11) limits and shapes the fuel falling material through the inclined baffle and outer frame, so that the coal material forms a coal segment structure with relatively consistent width and thickness on the conveyor belt. The control module synchronously records the discharge time and weight information of each coal segment, and timestamps it with the conveyor belt running speed and displacement data, thereby establishing the spatial position mapping relationship of the coal segment in the conveying line and realizing the traceable scheduling of each batch of fuel. Step 5, Volume Inversion and Density Calculation: The high-frequency radar level gauge (12) detects the height of the four corners of the fuel and the height of the top of the pile inside the lower hopper (9) in real time. Combined with the preset geometric dimensions of the lower hopper (9), the fuel accumulation volume is calculated, and the fuel density is obtained by ratio calculation with the weight data detected by the second weighing module (10). The control module integrates the weight, volume, density and emission time data to form an in-transit fuel status database, which is used for dynamic scheduling and coal supply strategy optimization under boiler load change conditions.

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