398 results about "Coal storage" patented technology

The invention discloses a coal bunker reserve real-time monitoring method integrating a laser radar and a camera. The method comprises the following steps: step 1, carrying out space-time joint calibration and hardware-level synchronization on a laser radar and a camera, and establishing a projection relationship between a point cloud and an image; 2, cooperatively collecting coal bunker data based on the calibration parameters, and obtaining a point cloud and a high-resolution image; step 3, heterogeneous preprocessing is carried out on the collected point cloud and the image, denoising, segmentation and down-sampling are carried out on the point cloud, semantic segmentation is carried out on the image, and coal and foreign matters are identified; step 4, based on image texture and point cloud coordinate coupling mapping, reconstructing a three-dimensional model with a semantic tag, projecting the point cloud to an image plane to perform feature matching so as to endow the texture, and fusing image semantic information to correct the model; and 5, dynamically calculating the volume of the coal pile by using the semantic three-dimensional model to realize real-time monitoring of reserves. The system overcomes the limitation of a single sensor, achieves the real-time and high-precision monitoring of the reserves of the coal bunker, and effectively improves the intelligent level of coal bunker management.

The invention relates to the technical field of microwave remote sensing monitoring, in particular relates to microwave remote sensing monitoring applied to the internal temperature of a coal storage yard, and particularly discloses a coal pile multi-frequency-band microwave remote sensing monitoring method and a coal pile multi-frequency-band microwave remote sensing monitoring system. The system comprises a multi-band microwave transmitting and receiving module, a signal data processing module, a data fusion and inversion model, a data storage module, a visual early warning control system and the like. Microwave signals of the surface layer and / or the shallow layer of the coal pile are detected through high-frequency-band microwaves; temperature distribution data in the coal pile are analyzed through inversion calculation of a pre-established data fusion and inversion model, laser spectrum data of the coal pile are obtained through detection of laser equipment, and harmful gas concentration data and corresponding position data are obtained. The method and the system can be used for early warning and monitoring the internal temperature and the spontaneous combustion point of the coal pile of the coal storage yard, and can effectively and accurately monitor.

The invention discloses a method for exploiting coal bed gas by using an underpressure coal reservoir horizontal well group, which comprises the following steps that the horizontal well group is arranged, the horizontal well group comprises a preset number of horizontal wells, each horizontal well comprises a horizontal well section, and each horizontal well section is positioned in a coal reservoir of the same series of strata; each horizontal well section is divided into a plurality of fracturing sections with preset lengths, and perforation positions are selected in each fracturing section for perforation to form fracturing points; fracturing construction is carried out on each fracturing section, the fracturing construction comprises a liquid injection and energy charging fracturing stage and a main body fracturing stage, in the liquid injection and energy charging fracturing stage, a first part of liquid is injected into the coal reservoir through fracturing points at preset displacement and preset construction pressure so as to fill natural fractures and cleats of the coal reservoir, and in the main body fracturing stage, a second part of liquid is injected into the coal reservoir through the fracturing points at preset displacement and preset construction pressure so as to fill the natural fractures and cleats of the coal reservoir. Injecting a second part of liquid into the coal reservoir through the fracturing point to form an artificial fracture in the coal reservoir, wherein the preset construction pressure does not exceed the formation fracturing pressure of the area where the horizontal well group is located; and after fracturing of all the fracturing sections is completed, coal bed gas exploitation is conducted.

The utility model discloses a two-stage coal blending system based on coking coal grading and grading crushing, and belongs to the technical field of coal storage and blending. The coal blending system comprises a hard coal silo, a two-stage screening and crushing mechanism, a coal blending bunker and a coal bunker, a discharging port of the hard coal silo is connected with a feeding port of the first-stage screening and crushing mechanism through a belt, and a discharging port of the first-stage screening and crushing mechanism is connected with a feeding port of the coal blending bunker through a belt; a discharging port of the coal blending bin is connected with a feeding port of the second-stage screening and crushing mechanism through a belt, and a discharging port of the second-stage screening and crushing mechanism is connected with a feeding port of the coal bin through a belt. By adopting the coal blending system disclosed by the utility model, the characteristics of various coals are effectively utilized, and various coking coals are matched according to a proportion, screened and then crushed, so that the mixing uniformity of the coals is improved, the phenomenon of coarse coal leakage in the coal blending process is improved, the coke quality is improved, and the coal blending cost is also reduced.

The invention discloses a coal storage and transportation intelligent management method and system, relates to the technical field of intelligent management systems, and aims to solve the problems of lack of environment monitoring, scheduling decision lag, extensive safety response and serious data island in the prior art. The method comprises the following steps: collecting the physical state, environmental parameters and operation behavior data of a coal storage yard in real time through a distributed sensor network; constructing a three-dimensional dynamic digital twinborn model and inputting the model into a time sequence neural network to predict the risk of spontaneous combustion, collapse or dust explosion in the future; and generating a dynamic scheduling instruction in combination with the task priority and the equipment state, and triggering a multi-level security response mechanism. The system comprises a sensor network module, a data fusion modeling module, a risk prediction module, a scheduling optimization module, and a closed-loop control and safety response module. According to the scheme, safety early warning preposition, scheduling decision intelligent optimization and resource energy efficiency collaborative improvement in the storage and transportation process are achieved, and the response capability and operation reliability of the coal supply chain are remarkably enhanced.

The invention discloses a coal storage monitoring method and device, electronic equipment and a storage medium. The method comprises the following steps: scanning a coal storage warehouse for storing coal to obtain a coal storage space model; performing region division on the coal storage space model to obtain a plurality of position regions; coal storage amount threshold value fluctuation intervals, environment coefficients and area fluctuation characteristic coefficients corresponding to the multiple position areas are obtained, the environment coefficients are used for representing the change degree of the coal stored in the coal storage warehouse affected by the environment, and the area fluctuation characteristic coefficients are used for representing the fluctuation condition of the coal price; and generating a coal storage monitoring result based on the coal storage amount threshold fluctuation interval, the environmental coefficient and the regional fluctuation characteristic coefficient, the coal storage monitoring result at least comprising one of the following: replenishment demand and calling priority link. According to the invention, the technical problems of low efficiency and single monitoring result of coal storage monitoring in the prior art are solved.

The invention discloses a storage and supply system for enhancing flexible operation of a coal power unit by a pulverized coal bunker, particularly relates to the field of thermal power generation, and is used for solving the problem that fuel conveying and combustion are asynchronous during rapid load adjustment of the coal power unit. Coordination control is carried out with the unified fuel demand as the center, the lag effect of pulverized coal storage and release is accurately predicted and counteracted before pulverized coal enters a boiler, and the pulverized coal conveying rhythm is closely aligned with the actual coal use demand. In this way, the oxygen amount and temperature fluctuation in the boiler combustion process are greatly reduced, and the problems that due to the fact that fuel supply is fast and slow, combustion in the boiler is not stable, and pollutant emission is increased are solved; meanwhile, the whole control method can automatically learn and adjust, frequent human intervention is not needed, operation is simpler, more convenient and safer, the capacity of a power plant for rapidly adapting to power grid load changes is remarkably improved, and the flexible advantage of pulverized coal storage and supply is fully played.

The invention provides a coal storage temperature detection method and device, electronic equipment and a storage medium. An ultrasonic generator is arranged on the upper portion of the ground of a coal yard and transmits an ultrasonic signal to a coal pile; an ultrasonic signal receiver is arranged at the lower part of a ceiling of a coal yard to receive an ultrasonic signal penetrating through a coal pile and obtain propagation time and energy attenuation information of the ultrasonic signal, and temperature distribution of each area in the coal pile can be calculated based on the propagation time and the energy attenuation information in combination with a preset corresponding relation between ultrasonic sound velocity and temperature; and when the temperature of any area of the coal pile exceeds the preset coal ignition point threshold value, an alarm signal is triggered and position information of the corresponding high-temperature area is output, so that the problems that in the prior art, due to the fact that heat cannot be dissipated in time after coal is stacked, temperature distribution conditions of the middle and lower layers of the coal seam are difficult to master and early warning cannot be performed in time are solved. The spontaneous combustion of the coal is easily caused.

The utility model relates to a coal sampling device and a coal sampling system, and belongs to the technical field of coal quality inspection, the coal sampling device comprises a mechanical arm and a sampling head, the sampling head comprises a shell and a spiral blade arranged in the shell, the shell is hinged at the end part of the mechanical arm, and a first hydraulic cylinder is arranged on the mechanical arm; the two ends of the first hydraulic cylinder are hinged to the mechanical arm and the shell respectively, a feeding port is formed in one end of the shell, a discharging port is formed in the side face of the shell, the plane where the discharging port is located is roughly perpendicular to the rotating plane of the shell, a coal storage device is arranged on the outer side of the discharging port, and spiral blades are arranged between the feeding port and the discharging port. A first motor is arranged at the end, away from the feeding port, of the spiral blade and is a positive and negative rotation motor. The inclined angle of the discharging port is adjusted through the mechanical arm and the first hydraulic cylinder, then the rotating direction of the spiral blade is controlled through the first motor, feeding and discharging are conducted at the feeding port of the sampling head, dust generated during sampling is reduced, and a good sampling environment is created.

The invention discloses a coal bunker mixed gas concentration detection method based on a BSA algorithm and a BP neural network, and belongs to the technical field of gas detection. The coal bunker mixed gas concentration detection method based on the BSA algorithm and the BP neural network comprises the following steps: collecting gases including carbon monoxide, nitrogen dioxide, sulfur dioxide, hydrogen sulfide and methane, and constructing the BP neural network by taking normalized gas data as an input layer; and optimizing BP neural network parameters by using a BSA bird flock algorithm, carrying out network training by using a back propagation algorithm, and inputting gas concentration data collected in real time into the trained neural network in real time to obtain a predicted value of the gas concentration. According to the method, the parameters of the BP neural network are optimized through the BSA algorithm, the accuracy of network prediction is greatly improved, the gas concentration in the coal storage bunker can be monitored in real time, and once it is detected that the hazardous gas concentration exceeds the standard, quick response can be made and corresponding measures can be taken, so that potential safety risks are reduced.

The invention provides a dual-time-scale optimization scheduling system and method considering diesel storage insurance supply and new energy consumption, and the method comprises the steps: collecting a plurality of data in real time, and outputting a historical data set and real-time monitoring data to a scheduling module; based on the wind and light output predicted values and load predicted values of the day before dispatching and the dispatching day, a multi-target optimization model is constructed, an energy storage charging and discharging plan, a diesel generator start-stop plan and an electric vehicle dispatching instruction are output, and cross-day energy transfer is achieved; on the basis of a model prediction control principle, 15 minutes are taken as a scheduling step length, a day-ahead scheduling plan is corrected in a rolling manner in combination with ultra-short-term source load prediction data, and prediction deviation is stabilized; controlling charging and discharging switching of the energy storage system, dynamic adjustment of the charging power of the electric vehicle and the operation state of the charging pile; through cooperative operation of day-ahead pre-scheduling and intra-day rolling optimization, source-load balance and low-carbon operation are realized. According to the scheduling system, long-period energy planning and short-period dynamic correction are both considered, and the self-consistency and low-carbon property of the off-grid charging station are improved.

The invention relates to a coal yard safety monitoring method, device and equipment and a readable storage medium, and belongs to the technical field of safety monitoring. The monitoring information comprises infrared thermal image information of all coal piles, side wall temperature parameters of all coal retaining walls, infrared thermal image information of belt open fire coal and gas parameters, smoke body parameters and dust parameters of all positions in a coal yard; the coal storage information comprises storage time, type and stock of each coal pile; and based on the monitoring information and the coal storage information, whether abnormal information exists in the coal yard is judged, and if the abnormal information exists in the coal yard, corresponding alarm information is generated according to the abnormal information. The method has the effect of improving the safety of the coal yard.

The invention discloses a method and system for measuring the volume of a dry bulk material pile by using a storage yard camera, and the method comprises the steps: installing a high-definition camera at the periphery of a storage yard or on mobile operation equipment, and collecting the image data of the storage yard; preprocessing the data; carrying out image matching based on an improved SIFT algorithm; reconstructing a three-dimensional structure of the storage yard; wherein the improved SIFT algorithm specifically comprises the following steps: during feature point matching, performing rough matching on feature points according to Euclidean distance, connecting rough matching pairs, comparing an included angle between connecting lines with a preset angle threshold value, removing wrong matching pairs, obtaining feature point matching pairs after fine matching, and performing image matching; segmenting and extracting point cloud data of the material pile, converting the point cloud data into a triangular network model, and calculating the volume of the material pile by using definite integral with the ground of the storage yard as the bottom surface. The method can be specifically applied to large dry bulk cargo collecting and distributing port stations or warehouses such as ports, power plants and coal storage bases, and the material pile volume of a storage yard can be rapidly and accurately obtained in real time.

A dust suppression material with dual network reinforced structure and its preparation method is provided, which relates to the field of dust control technology. The material comprises by weight: 0.1-0.5 parts of sesbania gum, 0.1-0.9 parts of polyacrylamide, 0.1-0.5 parts of carboxymethyl cellulose, 0.06-0.14 parts of crosslinking agent, 0.11-0.19 parts of oxidant, 0.1-0.3 parts of water retaining agent, 0.2-1 parts of wetting agent, and the balance is distilled water. The dust suppressant with dual network reinforced structure produced by the present disclosure can effectively improve the hydrophilicity and adhesion of dust, form a dense protective film on the surface of dust, meet the requirements of dust suppressant adhesion and wettability for underground coal mining operations and outdoor coal storage filed, and will not cause secondary pollution to the environment.

The utility model discloses a coal mill powder outlet pipe external bypass powder bin peak regulation system which is installed on a powder outlet pipe at an outlet of a coal mill and comprises a bypass powder bin, a bypass air powder pipe, a powder storage control valve, a powder feeder and an exhaust pipe. A bypass connector, a powder feeding port and an air return port are formed in the side wall of the powder outlet pipe. An air-powder separator is arranged at the top in the bypass powder bin, and an air-powder inlet and an exhaust gas outlet are formed in the air-powder separator; one end of the bypass pulverized coal pipe is communicated with the bypass interface, and the other end is tangentially connected into the pulverized coal inlet; the powder storage control valve is arranged on the bypass interface; a powder feeding inlet and a powder feeding outlet are formed in the powder feeder, the powder feeding inlet is communicated with the bottom of the bypass powder bin, and the powder feeding outlet is communicated with the powder feeding opening; and the other end of the exhaust pipe is communicated with the air return port. The device realizes rapid and accurate dynamic matching of a fuel system and a combustion system, is safe and environment-friendly, has an ingenious, simple and practical structure, and is easy to transform and popularize.

The invention relates to a large-proportion long flame coal blending coking method, and belongs to the technical field of coal blending coking production. Comprising the following steps: S1, burdening: preparing coal blending raw materials according to the following mass ratio: 30-40 parts of prime coking coal, 10-15 parts of 1 / 3 coking coal, 10-15 parts of lean coal, 15-22 parts of fat coal, 0-5 parts of gas-fat coal and 10-20 parts of long flame coal; s2, performing primary crushing on the long flame coal; s3, blending coal in a batching bin; s4, performing secondary crushing on the mixed materials; s5, coking: feeding the mixed coal obtained in S4 into a coal storage tower, conveying the mixed coal to a tamping, coaling and coke pushing all-in-one machine through a belt for tamping and forming, loading the mixed coal into a carbonization chamber for coking, after coke is mature, loading red coke into a dry quenching furnace for sensible heat recovery, discharging the red coke out of the dry quenching furnace, and conveying the red coke to a coke bin for storage. The proportion of the long flame coal in the large industrial coke oven is creatively and greatly increased, and the technical problems that in the prior art, the coal blending proportion of the long flame coal is low, and the coking coal blending cost is high are solved.

The invention relates to the field of thermal power plants, and discloses a thermal power plant intelligent fuel supply adjusting device which comprises a box body, a pulverized coal storage box is fixedly connected to the bottom of the inner wall of the box body, a guide pipe is arranged in the pulverized coal storage box, and a second servo motor is fixedly connected to one side of the guide pipe. A first rotating shaft is fixedly connected to the output end of the second servo motor, a spiral plate is fixedly connected to the outer wall of the first rotating shaft, an air heater is fixedly connected to one side of the box body, an air pipe is fixedly connected to the side, penetrating through the box body, of the output end of the air heater, and a power station boiler is connected to the end, away from the air heater, of the air pipe. A spiral plate is driven to rotate through operation of a second servo motor, pulverized coal in a pulverized coal storage box is conveyed into an air pipe, the pulverized coal in the air pipe is conveyed into a combustion chamber through operation of an air heater, the pulverized coal is prevented from flying around through arrangement of a guide pipe and the air pipe, and the service life of equipment is prolonged.

The invention discloses a circular coal yard stacker-reclaimer angle calibration method, and relates to the technical field of coal storage and transportation equipment control, and the method comprises the steps: uniformly arranging a plurality of intelligent memory cards in a rotary track of a circular coal yard stacker-reclaimer along the circumferential direction, and writing angle values of corresponding positions into the intelligent memory cards; an encoder and a microwave reader-writer are installed on a stacking mechanism, a taking mechanism and a swing mechanism of the stacker-reclaimer respectively, the encoder collects real-time angle data of all the mechanisms, and the microwave reader-writer reads the angle value in the intelligent memory card. Multi-point real-time angle calibration is achieved through the microwave recognition technology, the problem that traditional mechanical calibration is prone to being affected by environment interference and gear gaps is solved, the angle detection precision and operation efficiency of the stacker-reclaimer are improved, the equipment maintenance cost is reduced, and intelligent control is achieved.

The utility model relates to the technical field of coal conveying fly flow, and discloses a three-way baffle plate capable of adjusting a shunting mode, which comprises a three-way pipe body, a baffle plate central shaft is fixedly connected between two side walls in the three-way pipe body, two side surfaces of the three-way pipe body are fixedly connected with support frames, and the three-way pipe body is fixedly connected with the baffle plate central shaft. The two ends of the baffle center shaft extend to the exterior of the three-way pipe body and are fixedly connected between the two supporting frames correspondingly, two baffle shaft sleeves are rotationally arranged on the surface of the baffle center shaft, baffles are fixedly connected to the upper surfaces of the two baffle shaft sleeves correspondingly, and the three-way baffle is flexible in operation mode and high in practicability. The one-to-one operation mode of the upper-level material conveying belt and the lower-level material conveying belt can be met, the one-to-two operation mode can also be achieved, the coal storage structure of a coal storage yard can be optimized for a power plant where coal as fired needs to be blended, and the coal as fired can be blended in the conveying process and supplied to two units at the same time.

The invention belongs to the technical field of ore bed coal seam data analysis and processing, and relates to a coal reservoir brittleness index calculation method and a coal seam geological engineering dessert range depicting method, which comprise the following steps: obtaining a stress-strain curve of a deep coal seam core; obtaining the brittleness value, Young modulus and Poisson's ratio of the coal core according to the stress-strain curve; respectively determining correlation coefficients between the brittleness value and the Young modulus and between the brittleness value and the Poisson's ratio, and obtaining a rock mechanics adaptive factor according to the correlation coefficients; and obtaining the brittleness index of the coal reservoir according to the Young modulus, the Poisson's ratio and the rock mechanics adaptive factor. According to the method, deep coal seam brittleness index space distribution prediction is achieved, the prediction result is well matched with the drilling result, and deep coal seam well location deployment in the Ordos basin is effectively supported.

The present invention discloses a coal yard interconnection control method and system, which relates to the technical field of coal yard interconnection of coal-fired thermal power plants, including selecting a coal flow path from each coal supply point according to coal flow state information and coal supply point information; using an interlocking automatic control algorithm, according to the real-time information of the coal flow path of each coal supply point obtained, real-time monitoring of each interlocking device, and optimization of the coal flow path of each coal supply point; according to a dynamic coal transportation management and control algorithm, real-time monitoring of the coal transportation process, automatic control in the event of a failure, to ensure the continuity of coal transportation; based on transportation process monitoring, real-time monitoring and optimization of the interlocking machine operation of each coal supply point, to achieve the optimal coal flow path selection; for the failure of the interlocking machine, using intelligent interlocking operation management to achieve the optimal coal flow path selection. Through resource integration and real-time monitoring, the present invention improves the coal storage capacity and enhances the flexibility and reliability of the power plant supply chain.

The embodiment of the invention provides an intelligent control method for coal conveying. The method comprises the steps that a to-be-used coal bunker used for containing coal is determined; coal bunker evaluation attributes are determined; according to the coal bunker evaluation attribute, determining a target coal bunker for placing the target coal material; periodically inputting the material level information of the target coal bunker, the separation efficiency of the shallow slot separator, the conveyor belt speed corresponding to the target coal bunker and the current coal flow speed into a material level prediction model to obtain predicted material level information of the target coal bunker in the predicted duration; and according to the predicted material level information and the preset material level information of the target coal bunker, target control information of shallow slot sorting and a conveying belt associated with the target coal bunker is determined. According to the technical scheme of the embodiment of the invention, after the target coal bunker for placing the target coal is determined according to the coal bunker evaluation attribute, the target control information for shallow slot sorting and the conveyor belt is determined according to the predicted material level information, so that the target coal can be efficiently conveyed into the target coal bunker, the error is reduced, and the effect of accurate warehousing is achieved.

The invention discloses an open pit coal mine ground production system collaborative operation method based on an Agent simulation technology, and belongs to the technical field of coal storage and transportation. The method comprises the following steps: constructing a data acquisition and environment perception Agent, an anomaly detection and coordination management Agent, an optimization calculation Agent and a control execution Agent; the method comprises the following steps: collecting coal flow, coal type characteristics and equipment operation data of a conveying system in real time, and constructing a multi-objective optimization function taking energy consumption minimization, space utilization rate maximization and equipment load balance as objectives in combination with bin space capacity, coal pile three-dimensional form and environmental parameters of a storage system; an improved particle swarm optimization algorithm is adopted to solve optimal control parameters, and the belt conveyor speed, the coal type distribution priority and the emergency path are dynamically adjusted; through a closed-loop feedback mechanism, material blockage, shipping space overrun and equipment faults are monitored in real time, a self-healing strategy is triggered, and the model is updated. The hysteresis control defect of a traditional storage and transportation system is overcome, the operation efficiency is remarkably improved, and energy waste is reduced.

The invention provides a real-time monitoring and spontaneous combustion simulation combined coal-fired pile spontaneous combustion early warning system and method, and belongs to the technical field of fire coal storage. The method comprises the following steps: acquiring real-time temperature monitoring data, real-time gas monitoring data and real-time volatile gas concentration monitoring data after the completion of self-stacking of a to-be-fired coal pile, respectively drawing a temperature-time curve, a humidity-time curve and a volatile gas concentration-time curve, and carrying out real-time monitoring; randomly sampling from a coal-fired pile to form a simulation model, then heating the simulation model, supplementing water and volatile gas, simulating the change process of the coal-fired pile, and observing whether the simulation model is on fire and spontaneously combusted; and coal-fired pile spontaneous combustion early warning. The system comprises a first temperature sensor, a second humidity sensor, a first gas concentration sensor, a simulation cavity, an electric heating element, a water supplementing pipe, a gas supplementing pipe and a central processing unit. According to the invention, beforehand early warning can be realized, a large amount of data operation is not involved, and the construction cost is relatively low.

The invention relates to the technical field of material storage, in particular to a mining storage device which comprises a coal storage bin, an upper cover at the upper end of the coal storage bin is detachably connected, one side of the coal storage bin is sequentially provided with a feeding port and a ventilation hole from top to bottom, a square groove is formed in the inner wall of the coal storage bin, and the ventilation hole is formed in the inner wall of the coal storage bin. The gas dilution hole is formed in the bottom of the square groove in a penetrating mode and communicates with the gas conveying pipe, the elastic connecting rope is connected between the rotating plate and the valve plate, and the valve plate is arranged in the square groove in a sliding mode. When coal is stored in the coal storage bin, the rotating plate which intermittently swings drives the combustible gas protection assembly to move, carbon dioxide gas is intermittently supplemented, and combustible gas is extruded out through the carbon dioxide gas, so that the safety of the coal when the coal is stored on the inner side of the coal storage bin is remarkably improved; and threats caused by combustible gas and pulverized coal are eliminated.

The invention relates to the technical field of nonferrous metallurgy, in particular to a novel side-blowing feeding device and an intelligent control system and method. The device comprises a gas compressor, a safety valve, a pressure sensor, a mechanical sealing device, an electric control valve, an additive storage tank, a pulverized coal storage tank and a raw material storage tank. The system comprises a data acquisition module, an intelligent prediction module and an operation module. The method comprises the steps of collecting particles injected into a molten pool and spray gun gas flow and other data in real time; based on the collected data such as the particles injected into the molten pool and the air flow of the spray gun, the appropriate feeding amount and the appropriate air amount are given through numerical calculation; and according to data obtained through calculation, a gas compressor and discharging valves of all the stock bins are controlled to achieve precise gas supply and feeding. Particles and air are injected into the molten pool from the spray guns on the two sides of the side-blown smelting furnace at the same time in a pneumatic conveying mode, waste of the material particles is reduced, the material feeding amount and the air flow are reasonably predicted and accurately controlled, and efficient operation of the side-blown smelting furnace is achieved.

An anti-blocking device for a coal bunker belongs to the technical field of coal storage equipment, solves the technical problem that the coal bunker is blocked due to many factors, and adopts the technical scheme that the upper part of the coal bunker is provided with a straight-barrel coal bunker, and the lower part of the coal bunker is provided with a conical-barrel coal bunker, on one hand, a universal flexible shaft, a stirring rod, a spiral stirring blade and cutting teeth are arranged in an inner cavity of the straight-barrel coal bunker; the blocked coal body is stirred; on the other hand, a vibration motor set and a vibration cover plate are arranged on the inner wall of the conical barrel coal bunker, and wave vibration is conducted on the coal body in the inner cavity of the conical barrel coal bunker. The coal bunker blocking device can effectively solve the problems of shed arching, wall sticking, bunker blocking and foreign matter blocking which are prone to occurring in coal bunker blocking, manual blocking clearing is not needed, and guarantee is provided for efficient operation and safe and uninterrupted production in the coal mining process.

The invention discloses a chlorine-free environment-friendly coal transportation and storage antifreezing agent and a preparation method thereof, and belongs to the technical field of coal storage and transportation, the preparation method of the chlorine-free environment-friendly coal transportation and storage antifreezing agent comprises the following steps: heating and stirring natural grease, vacuumizing and dehydrating, then adding an amine compound to carry out modification reaction, and then adding an amine compound to carry out reaction to obtain the chlorine-free environment-friendly coal transportation and storage antifreezing agent. Cooling after the reaction is finished to obtain an intermediate product 1, adding water, a thickening agent and a metal corrosion inhibitor into the intermediate product 1, and uniformly stirring to obtain the chlorine-free environment-friendly coal transportation and storage anti-freezing agent. The anti-freezing agent prepared by the invention forms a weak interface on the surfaces of coal and carriages or warehouses, is easy to damage, and prevents a freezing phenomenon; a chlorine-containing component is not used, so that the corrosion problem caused by chloride ions is fundamentally eliminated; meanwhile, the cleaning agent has certain emulsifying capacity, so that the cleaning agent is relatively simple during cleaning; and more raw materials are natural grease or recovered grease, so that the method has the advantages of being green and environment-friendly.

The invention discloses a heat collection-heat storage system flow regulation and control method for improving the flexibility of a light-coal-storage complementary power generation system. The light-coal-storage complementary power generation system comprises a coal-fired power generation unit and a heat collection-heat storage system. With the control targets of coping with solar fluctuation and meeting the rapid load change requirement of the light-coal-storage complementary power generation system, the actual value of the mass flow of a working medium on the heat collector side is calculated and adjusted by collecting the solar radiation intensity and the operation data of the light-coal-storage complementary power generation system; the change rate of the water supply mass flow entering the working medium-water heat exchanger is calculated on line according to the variable quantity required by the working capacity of unit steam, and the actual value of the water supply mass flow entering the working medium-water heat exchanger and the actual value of the working medium mass flow of the working medium-water heat exchanger side are adjusted; and after the variable load instruction is finished, a model prediction control algorithm is adopted to update the actual values of the feed water mass flow entering the working medium-water heat exchanger and the working medium mass flow on the working medium-water heat exchanger side. The method can improve the operation flexibility of the system and is simple to operate.

The invention discloses a coal mine intelligent warehouse management system, and relates to the technical field of coal storage management, the warehouse management system comprises a sorting module, a warehouse-in and warehouse-out module, an inventory management module, an early warning module and a display module, the sorting module comprises a camera, a laser scanner, a hopper scale and a transfer module, wherein the laser scanner is used for scanning the volume of coal placed on the conveying belt to obtain total volume data, and the camera and the hopper scale are matched with each other to carry out further data acquisition. The transfer module transfers the coal to different conveyor belts according to the density data of the different coal, so that the conveyor belts convey the coal to different storage bins, and meanwhile, the inventory management module adjusts the quantity of the coal in the different storage bins according to the quality data of the coal in the storage bins; the effect that the warehouse management system adjusts storage according to the coal data is achieved.