Patents
Literature
1243 results about "Bunker" patented technology
Efficacy Topic
Property
Owner
Technical Advancement
Application Domain
Technology Topic
Technology Field Word
Patent Country/Region
Patent Type
Patent Status
Application Year
Inventor
A bunker is a defensive military fortification designed to protect people and valued materials from falling bombs or other attacks. Bunkers are mostly underground, in contrast to blockhouses which are mostly above ground. They were used extensively in World War I, World War II, and the Cold War for weapons facilities, command and control centers, and storage facilities. Bunkers can also be used as protection from tornadoes.
Coal bunker reserve real-time monitoring method integrating laser radar and camera
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.
Owner:XUZHOU NORMAL UNIVERSITY
Underground coal bunker unblocking system
The invention discloses an underground coal bunker unblocking system. The underground coal bunker unblocking system comprises a spiral conveying drill rod, a drill rod driving device, an intelligent monitoring module and a control module, the drill rod is arranged on the inner wall of a coal bunker, the gap between the outer edge of a drill rod blade and the inner wall of the coal bunker is smaller than 10 mm, and the drill rod driving device is connected with the drill rod to drive the drill rod to rotate. The intelligent monitoring module integrates a pressure sensor array, an infrared coal flow detector and an image recognition camera and is used for monitoring the blocking state in a coal bunker in real time, and the control module dynamically adjusts the rotating speed and the rotating direction of the spiral conveying drill rod according to monitoring data. According to the underground coal bunker unblocking system, through the collaborative design of spiral drill rod structure optimization, anti-explosion power driving, a multi-mode sensing network and intelligent decision control, the unblocking efficiency of the coal bunker and the safety of unblocking operation are improved, the monitoring means are comprehensive, the blocking state can be accurately judged in real time, control response is timely, and the unblocking efficiency of the coal bunker is improved. And complex working conditions can be adapted.
Owner:HUATING COAL GRP CO LTD
Two-stage coal blending system based on coking coal graded and quality-divided crushing
ActiveCN222267384UImprove mixing uniformityquality improvementGrain treatmentsBunkerProcess engineering
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.
Owner:TONGLING XIN YAXING COKING&CHEM CO LTD
Automatic control model for feeding and discharging of coal bunker
The invention belongs to the field of metallurgy and coal, and relates to an automatic control model for feeding and discharging of a coal bunker. The coal bunker feeding and discharging automatic control model is designed according to the blast furnace coal injection procedure of an iron making plant of an iron and steel enterprise, and automation and intelligentization of the whole coal bunker feeding and discharging process are achieved. A sensor, an automatic control system and a data analysis technology are integrated in the model, the material level of the coal bunker is monitored in real time through a material level indicator, and feeding and discharging strategies are automatically adjusted in combination with multi-level priority control logic. The system is provided with a dynamic switching mechanism, feeding targets can be automatically switched according to the material level of the coal bunker, the coal grinding speed is accurately controlled, and material breakage and material overflowing are prevented. In addition, the model has a safety interlocking protection function, and production safety is ensured. Through application of the model, the labor intensity of workers is remarkably reduced, the production efficiency and stability are improved, resource waste and equipment abrasion are reduced, the requirements of the modern industry for automatic and intelligent production are met, and sustainable development of enterprises is assisted.
Owner:CHONGQING IRON & STEEL CO LTD
Two-way real-time coal blending method based on momentum mixing and coal drop pipe optimization
PendingCN121631306AFuel supply regulationLump/pulverulent fuel feeder/distributionThermodynamicsBunker
The invention belongs to the technical field of coal blending, and discloses a two-way real-time coal blending method based on momentum mixing and coal drop pipe optimization. The method comprises the following steps: S1, monitoring coal flow information of a first coal feeder and a second coal feeder in real time, and respectively calculating target momentum values P of the first coal feeder and the second coal feeder at a mixing point; s2, spectral analysis is conducted on the first coal feeder and the second coal feeder, a fluctuation feature library is established, real-time detection and active compensation are conducted on discharging fluctuation, and the compensation amount delta P is output; and S3, constructing a bidirectional regulation and control model based on a multivariable cooperative control architecture, and respectively inputting target momentum values P and compensation amounts of the two paths of coal flows as control targets. According to the invention, the inherent mechanical fluctuation of the coal feeder and the change of the material level of the coal bunker can be actively inhibited, the high precision of the final coal blending proportion and the mixing uniformity is ensured, meanwhile, efficient turbulent mixing can be realized by utilizing the kinetic energy of the coal flow, and active mixing equipment such as an external mechanical stirrer or a roller mixer is omitted.
Owner:HUANENG POWER INT INC
Separated bunker structure design and coal blending combustion proportion dynamic regulation and control system and method
The invention belongs to the technical field of coal-fired boiler control, and particularly relates to a system and a method for dynamically regulating and controlling the structural design of a separated coal bunker and the blending combustion proportion of fire coal. According to the method, the correction coefficient is generated through the small-scale blending combustion experiment data, and the initial proportion calculation model is calibrated, so that the proportion design conforms to the theoretical constraint and adapts to the actual combustion characteristics of the coal type, and the theoretical and actual deviation is reduced; combustion efficiency and pollutant emission trend are predicted on line based on a fire coal combustion prediction model, dynamic adjustment of a fire coal blending combustion proportion is realized in combination with a progressive adjustment rule and an extreme working condition response rule, combustion parameter fluctuation is avoided, a verified alternative scheme is called, environmental protection and combustion stability are met, response time is shortened, and the method is suitable for large-scale popularization and application. The reliability in a fault state is improved; by automatically updating the fire coal combustion prediction model, prediction-adjustment-update closed-loop optimization is realized, the regulation and control error is gradually reduced along with the operation time, and the high regulation and control precision is kept for a long time.
Owner:PUYANG CITY HONGYU PRESSURE VESSEL
Biomass co-grinding blending combustion coal-fired unit and power generation system
PendingCN119826189AIndirect carbon-dioxide mitigationLump/pulverulent fuel feeder/distributionBunkerMixed materials
The embodiment of the invention discloses a biomass co-grinding blending combustion coal-fired unit and a power generation system. The system comprises a first-stage crusher, a second-stage crusher, a third-stage crusher, a fourth-stage crusher, a fourth-stage crusher and a fifth-stage crusher, the second-stage crusher receives the mixture of the coal and the biomass after the first-stage crushing, and performs second-stage crushing on the mixture; wherein the particle size of the mixture obtained after secondary crushing is smaller than that of the mixture obtained after primary crushing; a water spray head is used for spraying the mixture subjected to secondary crushing; the raw coal conveyor is used for conveying the mixture subjected to spraying treatment to a raw coal bunker; the material uniformizing device receives the mixture in the raw coal bunker and distributes the mixture for each coal mill; the air conveying device outputs cold and hot mixed air to the mixed material distributed in the material uniformizing device, and the mixed material is conveyed to the corresponding coal mill; and the coal mill crushes the mixture and conveys the crushed mixture to a hearth of the boiler. The continuous feeding of the fuel is realized, the uniformity of the fuel and the combustion stability are improved, the flying dust is reduced, and the output and the operation efficiency of the coal mill are improved.
Owner:SHANGHAI SHANGDIAN CAOJING POWER GENERATION +1
A coal bunker modeling method based on three-dimensional positioning and two-dimensional mapping
A coal bunker modeling method based on three-dimensional positioning and two-dimensional mapping. To improve the efficiency of bunker cleaning at the dock, sensors are used to obtain the internal information of the coal bunker. The three-dimensional lidar information and inertial measurement unit are used to perform real-time positioning on the push rake used for bunker cleaning operations. A fixed rotation sensor composed of a single-line radar and a DC servo motor is used to sense the coal bunker environment. The front-end positioning and serial port rotation angle are used as the basis for single-frame matching to obtain a complete point cloud inside the coal bunker. The superimposed point clouds are subjected to semantic fusion segmentation to classify the coal material point clouds, complete the outer boundary of the point clouds, fill the internal void point clouds, and calculate the volume of the coal material based on the three-dimensional grid point cloud of the coal material. The calculated information is fed back into the control logic of the upper computer to improve the efficiency of the entire push rake bunker cleaning operation.
Owner:ZHEJIANG UNIV OF TECH +1
Method and system for monitoring abnormal state of coal bunker based on multivariate data fusion
The invention discloses a multivariate data fusion coal bunker abnormal state monitoring method and system, and the method comprises the steps: collecting the continuous N-frame image information of a coal piling detection region in an image, obtaining the static pixel area of the coal piling region, calculating the ratio of the static pixel area of the coal piling region to the total area of the whole region, and calculating the area of the coal piling region; if the proportion in the continuous N frames of images exceeds a set threshold value, it is judged that coal piling abnormity occurs; image information of a coal falling opening in the image is collected, and whether coal blockage abnormity occurs or not is judged in combination with a coal level meter signal and the running state of the coal feeder; the method comprises the following steps: acquiring continuous N frames of image information of a lower opening and a coal falling opening of a coal bunker in an image, presetting a bunker collapse detection area in the image, calculating a chromatic aberration diffusion rate and a coal level descending rate in the bunker collapse detection area, and judging that bunker collapse is abnormal if the chromatic aberration diffusion rate and the coal level descending rate in the continuous N frames of image continuously exceed corresponding threshold values. Under the condition that existing equipment does not need to be transformed and replaced, recognition of various states of the coal bunker is achieved at low cost.
Owner:浙江众合科技股份有限公司
Arrangement for covering at least one fill in at least one bunker silo
PendingDE102023134399A1Agriculture tools and machinesHarvested fruit hanging devicesBunkerStructural engineering
In an arrangement for covering at least one fill in at least one bunker silo delimited by walls, comprising at least one surface element for laying on the fill, it is provided that at least one winding device is provided for the surface element, wherein the winding device can be arranged in a region of the bunker silo which is remote from the region in which bulk material is removed from the bunker silo. This arrangement allows for easier handling of the surface element, making it easier to remove components from the fill.
Owner:THÜMLER RAINER
Boiler pulverized coal particle online measuring device and method based on CT imaging
InactiveCN119290683AMonitor combustion statusControl and improve combustion efficiencyMaterial analysis using wave/particle radiationParticle size analysisBunkerProcess engineering
The invention discloses a boiler pulverized coal particle online measurement device and method based on CT imaging, and relates to the technical field of boiler pulverized coal measurement. The device comprises a CT image acquisition module, a CT image preprocessing module, a particle feature analysis module, a three-dimensional reconstruction module and a report output module. By acquiring and analyzing the multi-angle CT images of the feed opening of the pulverized coal bunker and in the hearth, detailed information, including particle size, particle distribution, particle size uniformity, combustion state and other characteristics, of pulverized coal particles entering the boiler can be detected and monitored on line, and by conducting three-dimensional reconstruction on the multi-angle CT images and marking the pulverized coal, the pulverized coal particles can be detected and monitored on line. A user can monitor the state of the pulverized coal particles of the boiler more easily; by integrating the pulverized coal characteristic data and the three-dimensional graph and outputting the report, the particle size and the distribution state of the pulverized coal particles can be visually monitored, the method can be used for analyzing the combustion state of the boiler, and the combustion efficiency of the boiler is further controlled and improved.
Owner:NANJING GENERAL ELECTRIC CO
Coal supply system of thermal power plant
PendingCN119647810AImprove combustion efficiencyreduce power generation costsData processing applicationsChemical processes analysis/designThermodynamicsBunker
The invention provides a coal supply system of a thermal power plant, which relates to the field of thermal power generation, and comprises a coal pile distribution module for dividing into a plurality of coal piles according to a fire coal source and a preliminary evaluation result; the coal quality detection module is used for extracting a sample for experiment and determining combustion influence parameters; the calorific value simulation module simulates the combustion process and determines the actual calorific value of the fire coal in each coal pile; the coal bunker matching module is used for matching each coal pile with superior, medium and inferior coal bunkers based on the actual heating value and conveying fire coal; the coal quantity distribution module distributes the coal supply quantity in a most economical manner based on a distribution optimization model, performs optimization distribution according to the storage quantity proportion of each coal bunker, and generates a distribution scheme; the control module is used for implementing coal supply action according to the generated distribution scheme; the invention aims to establish the calorific value simulation model to realize accurate coal bunker matching by optimizing sampling and analysis in the coal quality detection process, and adopts the coal supply quantity distribution model comprehensively considering various factors to improve the efficiency and economical efficiency of the coal supply system of the thermal power plant.
Owner:HUANENG HEGANG POWER CO LTD
Coal bunker mixed gas concentration detection method based on BSA algorithm and BP neural network
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.
Owner:CCTEG SHENYANG ENG CO
Coal mine anti-blocking coal bunker
PendingCN119460463Aeasy accessEasy maintenance and managementHollow article cleaningLarge containersMining engineeringBunker
An anti-blocking coal bunker for a coal mine comprises a bunker body, a coal inlet formed in the top of the bunker body and a coal outlet bunker arranged at the bottom of the bunker body, a cylinder is vertically erected in an inner cavity of the bunker body, a plurality of sets of connecting arm frames which are of a cross-shaped arrangement structure are evenly arranged on the circumference of the cylinder from top to bottom, and the cylinder is fixed to the inner cavity of the bunker body through the connecting arm frames. Anti-blocking coal cleaning mechanisms used for stirring coal accumulated in the bin body are further evenly arranged on the cylinder from top to bottom. On the basis of the single structure of an existing coal bunker, the coal bunker structure is optimized and designed again, the cylinder, the connecting arm frame, the anti-blocking coal cleaning mechanism and other structures are introduced into the coal bunker, automatic and mechanical coal cleaning and dredging of the coal bunker are achieved, and the safety problem caused by coal bunker blocking is fundamentally solved.
Owner:TIEFULAI (PINGDINGSHAN) INTELLIGENT SAFETY EQUIP CO LTD
Coal bunker hydraulic drilling rig dredging device
The invention belongs to the technical field of coal bunker dredging, and particularly relates to a coal bunker hydraulic drilling rig dredging device which comprises a pipe barrel frame, fixing blocks, a flow dividing barrel, a slope falling type material guiding mechanism and a hydraulic drilling type material passing mechanism, the fixing blocks are arranged on the inner wall of the pipe barrel frame, the flow dividing barrel is arranged between the fixing blocks, the slope falling type material guiding mechanism is arranged on the fixing blocks, and the hydraulic drilling type material passing mechanism is arranged on the pipe barrel frame. The hydraulic drill type material passing mechanism is arranged on the slope falling type material guiding mechanism, and the slope falling type material guiding mechanism comprises a material falling assembly, a lifting assembly and a buffering assembly. According to the dredging device for the coal bunker hydraulic drilling rig, coal falling into the coal bunker can be buffered, generation of pulverized coal is reduced, and the blockage phenomenon occurring in the discharging channel can be monitored.
Owner:SHANXI GUANGYIN CLEAN ENERGY TECHNOLOGY CO LTD
Stock bin water filtering anti-collapse bin gate discharging device
The invention belongs to the field of machinery, and particularly relates to a stock bin water filtering anti-collapse bin gate discharging device which comprises a gate frame, a coal bin anti-collapse bin gate discharging plate, a flashboard track and a flashboard opening and closing driving piece, the coal bin anti-collapse bin gate discharging plate comprises an obtuse-angle-top anti-collapse bin flashboard, and the top of the obtuse-angle-top anti-collapse bin flashboard protrudes towards a coal bin opening at an obtuse angle; the flashboard track comprises a rolling wheel flashboard track or a plane flashboard track, track flashboards attached to the flashboard track face are arranged on the two side edges of the obtuse-angle-top anti-collapse bin flashboard, the track flashboards are arranged on the rolling wheel face track or the plane flashboard track, and the track flashboards are connected with a flashboard opening and closing driving piece. The flashboard opening and closing driving piece drives the track flashboard to drive the coal bunker anti-collapse bin gate discharging plate, the coal bunker anti-collapse bin gate discharging plate conducts reciprocating motion along the flashboard track to open or close a coal bunker opening, and the water collecting and draining groove collects inflow water in the water collecting and draining groove or guides the inflow water into the water collecting container or a lower water channel.
Owner:刘素华
Multi-machine cooperation and control intelligent fuel system and method based on artificial intelligence
PendingCN119417409Aensure accuracy andavoid cloggingCharacter and pattern recognitionOffice automationIndustrial engineeringDisposal Technique
The invention discloses an intelligent fuel system and method based on multi-machine cooperation and control of artificial intelligence, and relates to the technical field of intelligent fuel processing, and the method comprises the steps that coal is unloaded to a belt through a ship unloader; coal is conveyed to a bucket wheel machine through a belt; coal is conveyed to a coal bunker through a bucket wheel machine; and the running states of the belt and the bucket wheel machine are monitored through wireless diagnosis. According to the remote full-automatic intelligent control system for the ship unloader, the coal unloading efficiency is greatly improved, and the risk of operation accidents is reduced; according to the full-automatic unattended control system of the bucket wheel machine, the continuity and automation of storage yard operation are realized, and the labor cost is obviously reduced; the wireless equipment diagnosis and monitoring platform improves the equipment maintenance efficiency and the response speed, and reduces the downtime; the image recognition-based coal conveying belt coal blockage and overflow recognition and early warning system effectively prevents the blockage and overflow problems in the fuel conveying process, and ensures the stable operation of a production line.
Owner:HUANENG (ZHEJIANG) ENERGY DEV CO LTD
Intelligent coal bunker detection system based on three-dimensional laser
The invention discloses a three-dimensional laser-based intelligent bunker detecting system for a coal bunker, which comprises a motion control device, a bunker detecting robot, a remote control system and a bunker detecting data analysis system, and is characterized in that the motion control device comprises a lifting device erected at an inlet of the coal bunker, and the bunker detecting robot is driven by the lifting device to go in and out of the coal bunker; the bin detection robot carries out three-dimensional laser scanning on the form of a coal bin through a built-in laser detection module, collects parameter data of the coal bin through a built-in multi-dimensional sensor module, and sends the scanned three-dimensional data and the parameter data in the coal bin to the remote control system through a communication module. The remote control system realizes remote control of the lifting device and acquisition of data acquired by the bunker exploration robot, and the bunker exploration data analysis system constructs a three-dimensional structure and size data of a coal bunker by utilizing a three-dimensional reconstruction technology and a coal bunker size extraction algorithm. According to the invention, the high-precision detection of the sticking substances on the wall of the underground coal bunker and the deformation of the bunker body is realized, and a basis is provided for the repair decision of the coal bunker.
Owner:JIANGSU WHIST TECH CO LTD
Pulverized coal sampling device
The utility model belongs to the technical field of metallurgy, and particularly discloses a pulverized coal sampling device which comprises a pulverized coal collector, the pulverized coal collector is provided with an input end, an exhaust end and a collecting pipe, the exhaust end is connected with negative pressure power, and a negative pressure environment is formed in the internal space of the pulverized coal collector; the sampling assembly is arranged on the powder collector and comprises a sampling pipe and a negative pressure pipe, the sampling pipe is communicated with the collecting pipe, one end of the negative pressure pipe is communicated with the inner space of the powder collector, and the other end of the negative pressure pipe is communicated with the sampling pipe; and the pulverized coal bunker is connected with the output end of the collecting pipe, and a gas locking mechanism is arranged between the pulverized coal bunker and the output end of the collecting pipe and used for preventing gas in the pulverized coal bunker from entering the collecting pipe. The pulverized coal sampling device has the beneficial effect that the pulverized coal sampling efficiency is improved.
Owner:CHONGQING IRON & STEEL CO LTD
Belt protection type quantitative coal feeder
The utility model relates to a belt protection type constant coal feeder, and relates to the technical field of coal feeders, in order to solve the problem of deviation of a skirt belt of the constant coal feeder, the belt protection type constant coal feeder comprises a coal feeder body, the skirt belt is arranged in the coal feeder body, a raw coal bunker is arranged at the top of the coal feeder body, a purging mechanism is arranged in the coal feeder body, and the purging mechanism is arranged in the coal feeder body. The purging mechanism comprises a variable-diameter compression nozzle, a seamless steel pipe and gas supply equipment, the gas supply equipment is arranged outside the coal feeder body, one end of the seamless steel pipe is communicated with the gas supply equipment, the other end of the seamless steel pipe extends into the coal feeder body, the seamless steel pipe is communicated with the variable-diameter compression nozzle, and the variable-diameter compression nozzle is communicated with the gas supply equipment. The variable-diameter compression nozzle is arranged below the skirt belt and is provided with two groups of air nozzles, and the two groups of air nozzles of the variable-diameter compression nozzle are arranged towards the bottom of the skirt belt. The device has the effects of reducing belt deviation and reducing the abrasion and tearing risk of the belt.
Owner:ZHONGTIAN IRON & STEEL GRP (NANTONG) CO LTD
Connecting device of garbage compression bin
Owner:DEZHOU QUNFENG MACHINERY MFG
Down-sampling trolley structure of raw coal bunker
The utility model discloses a raw coal bunker down-sampling trolley structure which comprises two L-shaped support plates which are arranged oppositely, two trolley guide rail pieces which are symmetrically arranged between the two L-shaped support plates, and four trolley wheels which are symmetrically arranged on the two trolley guide rail pieces in a rolling manner, triangular limiting vertical plates are fixedly installed on the two sides of each small wheel and located at the end of a wheel axle, a supporting bottom plate is detachably installed between every two adjacent triangular limiting vertical plates, two T-shaped sliding blocks are symmetrically connected to the top face of each supporting bottom plate in a sliding mode, and the top face of each T-shaped sliding block is connected with a limiting auxiliary wheel through a damping and buffering component. The limiting auxiliary wheels abut upwards and are connected to the bottom face of the trolley guide rail piece in a rolling mode so that the trolley wheels can be stretched downwards to abut downwards and roll on the trolley wheels to be prevented from falling off. The small wheel and the two limiting auxiliary wheels form a triangular distribution structure, so that the stability between the small wheel and the trolley guide rail piece is improved, and the small wheel is prevented from falling off from the trolley guide rail piece.
Owner:SICHUAN CHUANMEI HUARONG ENERGY CO LTD DUSHI COAL PREPARATION POWER PLANT
Blast furnace coal injection equipment and using method thereof
The invention discloses blast furnace coal injection equipment and a using method thereof, and relates to the technical field of blast furnace coal injection equipment, and the blast furnace coal injection equipment comprises a crusher used for crushing raw coal; the flue gas furnace is used for inputting dry gas generated by combustion of the crusher into the crusher; the bag-type dust collector is connected with the crusher and the induced draft fan, and an air outlet of the induced draft fan is connected with the chimney The top of the pulverized coal bunker is provided with a bunker top dust remover, a plurality of filter bags are arranged in the bunker top dust remover in an array mode, and the bunker top dust remover is connected with a chimney. According to the blast furnace coal injection equipment, the technical problems that a gas medium in a pulverized coal bunker cannot be quickly and effectively discharged and pulverized coal leaks from the pulverized coal bunker due to the fact that water vapor in the pulverized coal bunker is mixed with pulverized coal to form thinner coal slime which can paste a filter bag of a bunker top dust remover are solved; the waste heat of the dry gas is used for drying the filter bag in the bin top dust remover, so that the air permeability of the filter bag is improved, and the coal powder leakage of the coal powder bin is avoided.
Owner:SHANDONG IRON & STEEL CO LTD
Early warning method, system and equipment for raw coal hanging on wall of raw coal bunker and medium
The invention discloses a raw coal bunker raw coal wall-hanging early warning method, system and device and a medium, and the method comprises the steps: obtaining and preprocessing a coal flow voiceprint signal, and obtaining a voiceprint feature; calculating a coal flow falling speed through a cross-correlation time delay method based on the voiceprint signal; inputting the voiceprint features, the coal quality parameters and the coal flow parameters into a fusion model, and outputting a wall-hanging risk probability; based on the wall hanging risk probability, combining DCS parameter model output and coal type switching time logic output, and performing probability calibration through a D-S evidence theory; performing joint probability calculation on the calibrated probability through a Dempster combination rule to obtain a synthesized final wall hanging probability; and performing judgment and early warning based on the final wall hanging probability. According to the method, data preprocessing and feature level fusion are carried out on multi-source data, and the multi-source data are input into a bidirectional LSTM network for decision level fusion; the probability is integrated by adopting the Dempster-Shafer evidence theory, so that the problem of sensor confidence conflict can be solved, the accuracy of wall-hanging prediction can be improved, and a wall-hanging early warning effect can be realized.
Owner:SHANGHAI SHIDONGKOU NO 2 POWER PLANT HUANENG INTERNATIONAL POWER CO LTD +1
Thermal imaging unmanned exploring cabin equipment
The invention relates to the technical field of unmanned exploring bins, and discloses a thermal imaging unmanned exploring bin device which comprises a coal bunker storage mechanism, a transmission assembly, a limiting assembly and an exploring bin assembly, the coal bunker storage mechanism comprises a coal bunker body, a exploring bin hole and multiple sets of abutting pieces, the exploring bin hole is formed in the coal bunker body, and the abutting pieces are arranged in the exploring bin hole. The multiple sets of abutting pieces are arranged in the bin detecting hole in an annular array mode, the transmission assembly is arranged on the top wall of the coal bin body and comprises a supporting plate, a first driving part, a transmission shaft rod and a lifting rope, the supporting plate is arranged on the top wall of the coal bin body, the first driving part is arranged on the supporting plate, and the transmission shaft rod is arranged at the output end of the first driving part; the lifting rope is wound on the transmission shaft rod, the limiting assembly is movably arranged in the coal bunker body, and the bin probing assembly is movably arranged in the coal bunker body. Therefore, the equipment stability in the thermal imaging bin detection process is guaranteed, the thermal imaging definition and the detection precision are guaranteed, the equipment is convenient to maintain, and the cost is reduced.
Owner:XIAN HEAVY WISDOM MINE ENG TECH CO LTD +2
Coal bunker fire monitoring and early warning system
The utility model relates to the technical field of coal bunker fire monitoring, and discloses a coal bunker fire monitoring and early warning system, which comprises a steel pipe fixed on the wall body of a coal bunker in a penetrating manner; one end of the monitoring pipe is open, the other end of the monitoring pipe is closed, and the closed end is detachably connected with one end, in the coal bunker, of the steel pipe; the circuit board is arranged in the monitoring pipe, and a gas sensor is integrated on the circuit board. According to the coal bunker fire monitoring and early warning system, content changes of gases such as carbon monoxide, carbon dioxide, oxygen, methane, acetylene and ethylene in a coal bunker can be monitored through the gas sensors on the circuit board, data are transmitted to the upper computer outside the coal bunker, and the upper computer monitors the gas content and sends the monitored data to the coal bunker. According to the method, the coal piling area which is rapidly heated in the coal bunker can be found more accurately and timely in the early stage, and then the timeliness and accuracy of fire monitoring are improved.
Owner:CHINA UNIV OF MINING & TECH
A multi-functional ventilation system for low-temperature grain storage with intelligent linkage and its ventilation method
ActiveCN116267255BAgriculture tools and machinesClimate change adaptationTemperature controlVentilation tube
The present invention discloses an intelligent linkage low-temperature grain storage multi-functional ventilation system and its ventilation method, which includes a ventilation pipe network, a main controller, and several refrigeration and air-conditioning units, temperature sensors, etc. connected to the main controller. The ventilation pipe network includes an upper-layer annular ventilation duct, a bottom-of-bunker ventilation floor grille, a vertical ventilation duct along the corner of the bunker wall, etc. Among them, the upper-layer annular ventilation duct is installed parallel to the ground below the grain loading line on the side wall of the granary; the bottom-of-bunker ventilation floor grille includes a lower-layer annular ventilation floor grille and a semi-circular cross-section ventilation floor grille arranged in a "mountain" shape; the vertical ventilation duct along the corner of the bunker wall has an isosceles triangle cross-section, one group of which is connected to the upper-layer annular air duct, and the other group is connected to the lower-layer annular floor grille. A closed air valve is provided on each branch air duct, and the opening and closing are controlled by the main controller according to the requirements of different grain storage temperature control working conditions; the present invention can systematically solve the problem of grain storage loss caused by reasons such as "local heating", "blind ventilation", and "cold core and hot skin" during storage.
Owner:NANJING UNIV OF FINANCE & ECONOMICS +2
Coal discharge structure of pulverized coal bunker
The utility model discloses a coal discharge structure of a pulverized coal bunker, which comprises a support frame body, and a storage device and a discharge device are respectively mounted on the support frame body from top to bottom; the material storage device comprises a material storage bin, middle bins are arranged in the middles of the two side faces of the material storage bin in a protruding mode, and anti-blocking mechanisms are installed through the middle bins on the two sides; a mounting plate protrudes out of the outer circumference of the lower end opening of the storage bin, fixing plates arranged on the front side and the rear side of the lower end opening of the storage bin are arranged at the lower end of the mounting plate, and baffles arranged on the two sides of the lower end opening of the storage bin are movably mounted between the fixing plates at the front end and the rear end; a pneumatic mechanism used for controlling the baffles on the two sides to be opened and closed is installed through the support. The discharging device comprises a discharging hopper, an opening in the upper end of the discharging hopper is formed in the lower end of the storage bin, dust suppression cloth strips are installed on the periphery of the outer side of the opening in the lower end of the discharging hopper, discharging is smooth, the discharging speed can be flexibly controlled, and dust can be effectively suppressed.
Owner:HENAN AOGRACE VENTILATION ELECTRICAL CO LTD
Blast furnace coal injection raw coal online preheating method and system
The invention discloses a blast furnace coal injection raw coal online preheating method and system, relates to the technical field of blast furnace ironmaking coal injection, and aims to solve the problem that raw coal of a pulverized coal preparation system needs a better preheating dehydration scheme. The method comprises the steps that a raw coal bunker is transformed or newly built, multiple layers of steam pipelines are arranged in the height direction of a bunker body, the two ends of the multiple layers of steam pipelines are connected to the same main steam pipeline, and all the layers of steam pipelines penetrate through the wall of the raw coal bunker and are connected with a heat exchange structure in the bunker; an anti-collision device is additionally arranged above each layer of steam pipeline and the heat exchange structure in the bin to play a role in protection, and a drain pipe is connected below the outlet end of each layer of steam pipeline to drain condensate water; the top of the raw coal bunker is connected with a dust remover for discharging water vapor generated after raw coal is heated; the structure is simple, and the preheating effect on raw coal is effectively improved; the water content of the preheated raw coal entering the mill is reduced, and the yield of the mill can be effectively improved.
Owner:HUATIAN NANJING ENG & TECH CORP MCC +1
Coal bunker cleaning device and cleaning head
The utility model provides a coal bunker cleaning device and a coal bunker cleaning head, the coal bunker cleaning device comprises a multi-stage hydraulic telescopic cylinder and a foldable mechanical hydraulic arm, through the control of the hydraulic telescopic cylinder and the foldable mechanical hydraulic arm, the coal bunker can be automatically cleaned, the burden of workers is reduced, in addition, the utility model further provides the coal bunker cleaning head, and the coal bunker cleaning head is convenient to use. Through cooperation of the expansion hammer, the vibration core teeth and the pioneer drill, the bunker wall is cleaned in a first-stage drilling, second-stage vibration and third-stage expansion mode, and efficient and thorough cleaning work of the coal bunker is completed.
Owner:HENAN TOPOLOGY INTELLIGENT MACHINERY CO LTD