477 results about "Pulverized fuel ash" patented technology

The invention provides an intelligent collecting and monitoring system and method for preventing boiler coking, and relates to the field of intelligent control. The method comprises the following steps: analyzing a monitoring video of boiler combustion, oxygen content values in a boiler at a plurality of preset time points and temperature values of a boiler hearth opening to obtain a relationship among boiler coking, the temperature values and the oxygen content values, and further judging whether the opening degree of an air door in the boiler needs to be adjusted; the oxygen content in the boiler is controlled by controlling the opening degree of the air door, so that the temperature of a hearth opening of the boiler is slightly lower than the melting point of coal ash, and the coking degree of the boiler is reduced.

The invention discloses a coal ash characteristic intelligent regulation and control method and system based on big data analysis, and relates to the technical field of coal ash characteristic regulation and control, and the method comprises the steps: obtaining coal ash parameter information, obtaining coal ash fusion characteristic temperature information based on a coal ash fusibility test according to the coal ash parameter information, and obtaining a coal ash viscosity-temperature characteristic curve based on the coal ash parameter information. According to the method, the fusibility of the coal ash is accurately analyzed by testing the fusibility of the coal ash cone, the fusibility of the coal ash in the actual production environment is accurately evaluated through the coal ash fusibility characteristic temperature, the accuracy of coal ash characteristic regulation and control is ensured through the coal ash characteristic regulation and control node, the coal ash characteristic regulation and control efficiency is improved, and the method is suitable for industrial production. The coal ash characteristic regulation and control mode is specifically limited through the coal ash regulation and control reagent proportion information, the situation that the coal ash characteristic regulation and control accuracy is affected by the superposition effect of different regulation and control reagents is avoided, and the coal ash characteristic regulation and control stability is improved.

The invention discloses an anti-skid device for a coal conveying belt of a power plant. The device comprises a conveying belt, a friction roller, a conveying belt shaft, a shaft bracket, a sliding seat and the like, the friction roller and the conveying belt shaft are inserted into two ends of the conveying belt, the shaft bracket sleeves two ends of the conveying belt shaft and is connected with the sliding seat, the conveying belt shaft at one end is connected with a speed reducer and a driving motor, and an adjusting assembly is arranged at the sliding seat to control the tension degree of the conveying belt and comprises a connecting seat, a screw, a nut and an adjusting motor. A linkage sweeping assembly is arranged on the inner wall of the lower portion of the conveying belt and comprises a second support, a rotating shaft, a rotating roller, sweeping belts and the like, the sweeping belts rotate to clean coal ash impurities through the combined driving assembly by means of conveying belt shaft power, and the two sweeping belts rotate in opposite directions to reduce sweeping dead corners. One side of the shaft bracket is provided with a central integrated controller and is connected with a rotating speed sensor which can monitor the rotating speed and control the adjusting motor to adjust the tension degree of the conveying belt according to the rotating speed. The device has the advantages of effective skid resistance, efficient cleaning, accurate tension degree adjustment and integrated control, and the stability and reliability of a coal conveying system of a power plant are improved.

The embodiment of the invention provides a coal conveying belt deviation rectifying device and a coal conveyor of a thermal power plant. The coal conveying belt deviation rectifying device comprises a base, a containing frame, a deviation rectifying roller assembly, an ash removing mechanism and a control box. The conveying carrier rollers are rotatably arranged on the rack in the width direction of the rack; the base and the placing frame are both arranged on the rack; the deviation rectifying roller assembly is rotatably arranged on the base in the height direction of the rack so as to rectify deviation of a belt. The ash removal mechanism is arranged at the top of the containing frame to remove coal ash on the surface of the conveying carrier roller, the control box is arranged in the middle of the top of the containing frame, and the control box corresponds to the ash removal mechanism and the deviation rectifying roller assembly in an electric signal mode. Therefore, the deviation correcting device for the coal conveying belt has the advantage of preventing and correcting the problems of belt abrasion and material leakage caused by deviation of the belt.

The utility model relates to the technical field of fire coal deslagging, in particular to a thermal power plant fire coal deslagging device which comprises a deslagging box, the top of one end of the deslagging box is communicated and connected with a slag falling opening, and a first sieve plate is fixedly installed in the position, close to the slag falling opening, of the deslagging box. Unburnt coal briquettes and coal ash in coal slag can be preliminarily screened through a first screening plate obliquely arranged at the bottom of a slag falling opening, the coal slag can be screened again through a second screening plate on one side of the first screening plate, the coal briquettes on the second screening plate can be conveniently pushed into a slag collecting box through a pushing plate on the outer wall of a rotating rod, and coal briquette accumulation is prevented; one end of a telescopic column is inserted into a telescopic groove of a mounting block in a sliding mode, under the elastic action of a first spring and a second spring, the collision force between a pushing plate and a second screen plate can be reduced, the second screen plate can be conveniently shaken, coal briquettes and coal ash are separated, and the problem that part of fuel is lost due to the fact that coal cinder is directly discarded is solved; and the production cost can be reduced.

The utility model relates to the technical field of coal ash treatment, and discloses a coal ash particle collecting and classifying device which comprises a base. Symmetrically-distributed supports are installed on the base, swing shafts are rotationally arranged on the supports and fixedly connected with a box body, sieve plates distributed at equal intervals are installed in the box body, movable doors distributed at equal intervals are arranged on one side of the box body, a first motor is installed at the top end of the box body, and the driving end of the first motor is fixedly connected with a rotating shaft. A material stirring component is arranged on the rotating shaft, a transmission component is arranged in the rotating shaft, and a swinging component is arranged on the support; according to the coal ash screening device, coal ash is poured into the box body through the feeding port, the poured coal ash is screened through the screening plate, the transmission part drives the material stirring part to evenly spread the poured coal ash on the surface of the screening plate, then the screening effect of the screening plate on the coal ash is improved, and the coal ash can shake left and right along the screening net in cooperation with the swinging part; and the coal ash screening efficiency of the sieve plate is improved.

The utility model relates to screening equipment for utilizing fly ash-doped solid waste, which comprises a shell and a feed hopper fixedly arranged at the top of the shell in a penetrating manner, a discharge port and a slag discharge port are respectively formed in the lower half parts of two opposite side walls of the shell, and a discharge inclined plate and a slag discharge inclined plate are respectively and fixedly connected to the inner bottom walls of the discharge port and the slag discharge port. The discharging inclined plate and the slag discharging inclined plate partially extend into the shell, a vertical plate is fixedly connected to the inner bottom wall of the shell, and a guide plate is hinged to the top of the vertical plate. The utility model relates to the technical field of coal ash. After screening is completed, the electric push rod works to drive the guide plate to rotate, so that the guide plate is attached to the slag discharging inclined plate, then the two sieve plates rotate, unqualified coal ash falls onto the guide plate through a gap between the two sieve plates and is discharged through the slag discharging inclined plate and the slag discharging opening, and therefore the unqualified coal ash can be conveniently taken out; and the fly ash can be fully screened.

The invention relates to the technical field of dust removers, and discloses an anti-blocking heat-tracing-free device for a dust hopper of a dust remover, the anti-blocking heat-tracing-free device comprises a dust hopper mechanism and a feeding mechanism arranged on one side of the dust hopper mechanism, the dust hopper mechanism comprises an outer cylinder body and an inner cylinder body arranged on the inner wall of the outer cylinder body, the upper end of the outer cylinder and the upper end of the inner cylinder are jointly provided with an upper cylinder; the feeding mechanism comprises a feeding pipe communicated with the inner barrel and an anti-blocking device arranged on the feeding pipe, coal ash is fed into the inner barrel from the feeding pipe, impact force generated by the coal ash is applied to a first connecting fin and a second connecting fin and drives the first connecting fin and the second connecting fin to rotate, and the first connecting fin and the second connecting fin are connected with the anti-blocking device. Not only can the temperature in the device be uniformly stirred, but also the coal ash can be scattered, and the fluidization possibility is increased.

The invention is suitable for the technical field of coal, and provides a high alkali metal coal slag adhering method, which comprises the following steps: step 1, analyzing the occurrence form and content of alkali metal: firstly, analyzing the occurrence form and content of alkali metal in coal, including four forms of water-soluble alkali metal, ammonium acetate solubility, diluted hydrochloric acid solubility and insoluble alkali metal, according to the invention, the slag adhering problem of the high alkali metal coal is reduced, the combustion efficiency and environmental protection property of the coal are improved, the combustion and gasification efficiency of the coal is improved, the environmental pollution is reduced, through reasonable coal blending, the utilization efficiency of coal resources is improved, the production cost is reduced, the low alkali coal can be effectively utilized to improve the combustion characteristics of the high alkali coal, and the slag-bonding and contamination problems of a boiler are reduced; meanwhile, safe and economical operation of the boiler is guaranteed, the components of the coal ash can be effectively regulated and controlled, the utilization value of the coal ash is improved, the environmental influence is reduced, cyclic utilization of resources is achieved, and the slag adhering phenomenon of the high alkali metal coal in the combustion and gasification process can be more accurately predicted and controlled, so that effective prevention and solution measures are taken.

The invention discloses a coal slime flotation dosage dynamic prediction method and system based on multiple working conditions, and relates to the technical field of mineral processing process control, and the method comprises the steps: based on coal slime particle data, employing a density clustering algorithm to carry out preliminary dynamic division on real-time working conditions, generating initial working condition labels, and through a time sequence correlation analysis and dynamic correction mechanism, carrying out dynamic prediction on the real-time working conditions; optimizing the initial working condition label to generate a multi-working condition label; a flotation cell simulation model is constructed, advanced simulation is conducted according to the real-time working condition operation parameters, the clean coal ash value and the recovery rate in a future time window are predicted, dynamic calibration is conducted, and a chemical adding amount adjusting instruction is generated; and executing the dosage adjusting instruction, evaluating the coal slime flotation efficiency through a multi-dimensional flotation dynamic evaluation method, and dynamically optimizing the dosage adjusting instruction according to an evaluation result. A flotation cell mechanism model is established, a predicted value is dynamically calibrated through parameter inversion and extended Kalman filtering, a dosing instruction is generated in combination with MPC, and advanced precise regulation and control of clean coal quality and recovery efficiency are achieved.

The invention discloses a coal slime flotation dosing state evaluation method and system based on multi-modal data, and belongs to the technical field of mineral processing, and the method comprises the steps: collecting a flotation froth image and tailing ash content data in a coal slime flotation process, taking the collected data as multi-modal input data, labeling the data, and preprocessing the data; randomly dividing the multi-modal data set with the label into a training set and a test set according to a proportion of 6: 4, establishing a flotation dosing state evaluation model based on a deep learning network, training the model, and inputting the data into the model to obtain a dosing state of to-be-classified data; according to the coal slime flotation dosing state evaluation method and system based on the multi-modal data, comprehensive analysis is conducted by fusing the multi-modal data, accurate evaluation and optimization of the dosing state are achieved, accurate reference bases are provided for the coal slime flotation production process, and the production efficiency and the resource utilization rate are improved.

The utility model discloses an automatic bulk system for ash materials, which comprises a tank opening identifying and positioning piece, a controller and a bulk machine, the bulk machine is provided with a bulk head, the tank opening identifying and positioning piece and the bulk head are both electrically connected with the controller, a tank car parking station for parking and feeding of a tank car is arranged below the bulk head, and the tank car parking station is electrically connected with the controller. The tank opening identifying and positioning part is used for identifying a tank opening of the tank car and positioning along with the tank opening, and the controller is used for controlling the bulk head to move to be aligned with the tank opening according to positioning data of the tank opening identifying and positioning part, so that when the tank car is parked at the tank car parking station, the bulk head can move to the tank opening to be aligned with the tank opening. The tank opening of the tank car can be identified by the tank opening identifying and positioning piece, the tank opening is positioned, then three-dimensional coordinate information of the tank opening is transmitted to the controller, the bulk head is controlled by the controller to move to be aligned with the tank opening, and coal ash can be added into the tank car through the bulk head.

The invention belongs to the technical field of coal, and particularly discloses an alkaline agent for chemical deep deliming of ultra-pure coal and a preparation method and application of the alkaline agent, and the alkaline agent is prepared from a quaternary ammonium alkali solution, a strong alkali solution, an NH3.H2O solution and a sodium fluoride solution according to the volume ratio of (2-3): (1-2): (1-2): (2-3). Compared with the prior art, the compound agent has high alkalinity and complexing capacity, and after deep deliming is conducted through the compound agent, clean coal with the ash content being 2% + / -0.2% can be prepared into ultra-pure coal with the ash content being lower than 0.2%; the preparation method of the alkaline compound agent is simple and easy to operate, the obtained product is high in quality, the coal ash content of the prepared ultra-pure coal is smaller than 0.2%, deep deashing of the coal is achieved, and further comprehensive utilization of the coal is facilitated.

The utility model relates to the technical field of coal ash carbon sequestration, and discloses a coal ash solid waste carbon sequestration device which comprises a carbon sequestration tank, a rotating cylinder is fixedly connected to the top wall of the inner side of the carbon sequestration tank, a power assembly is fixedly connected to the outer side of the rotating cylinder, and a connecting frame is fixedly connected to the top end of the carbon sequestration tank. A pushing air cylinder is fixedly connected to the top end of the connecting frame, a pushing plate is fixedly connected to the bottom end of an output shaft of the pushing air cylinder, a limiting assembly is fixedly connected to the outer side of the pushing plate, a rotating rod is rotationally connected to the bottom end of the pushing plate, and the rotating rod is located on the inner side of the rotating cylinder; and the outer side of the rotating rod is fixedly connected with a connecting assembly, and the outer side of the connecting assembly is fixedly connected with stirring blades. The coal ash solid waste carbon sequestration device has the advantage that the overall carbon sequestration effect of coal ash is improved.

The invention provides a circulating fluidized bed boiler load self-adaptive control system and method, and belongs to the technical field of circulating fluidized bed boiler load self-adaptive control. In order to realize in-boiler temperature regulation based on dynamic conveying of settled ash in a boiler and realize efficient active matching of heat transfer capability in a quick response load process of the boiler, the technical scheme is that the top of a hearth of the circulating fluidized bed boiler is communicated with the top of a cyclone separator through a coal ash recovery pipeline, and the top of the cyclone separator is connected into a tail flue; an economizer is arranged in the middle of the tail flue, and a flue outlet is formed in the bottom of the tail flue; the bottom of the cyclone separator is connected with a circulating ash returning device through an outlet pipeline, a settled ash conveying hole is formed in the upper part or the side part of the circulating ash returning device, and a conveying pipeline is welded on the outer side of the settled ash conveying hole and is connected with the bottom of a hearth of the circulating fluidized bed boiler; the method is used for self-adaptive control of the load of the circulating fluidized bed boiler.

It has been unexpectedly discovered that the addition of a natural or other pozzolan to non-spec coal ash significantly improves the properties of the non-spec coal ash to the extent it can be certified under ASTM C618 and AASHTO 295, as either a Class F or Class C coal ash. The natural pozzolan may be a volcanic ejecta, such as pumice or perlite. Other pozzolans may also be used for this beneficiation process. Many pozzolans are experimentally tested and may be used to beneficiate non-spec coal ash into certifiable Class F coal ash. Additionally, this disclosure provides a method of converting a Class C coal ash to a more valuable Class F coal ash. This discovery will extend diminishing Class F coal ash supplies and turn non-spec coal ash waste streams into valuable, certified coal ash pozzolan which will protect and enhance concrete, mortars and grouts.

The invention relates to the technical field of coal engineering, in particular to a pulverized coal ash content detection method and system based on image recognition, and the method comprises the following steps: collecting a coal sample and preprocessing the coal sample; coal sample target images corresponding to different modes are obtained for the preprocessed coal sample; a trained detection model is obtained, the detection model is used for outputting a gray content predicted value and a gray content category based on an input image, the detection model comprises a feature adjustment module, a feature extraction module, a feature fusion module and an analysis output module which are connected in sequence, and the feature extraction module comprises a plurality of convolutional layer modules and a Transform self-attention layer module; each module in the feature extraction module is connected with the feature fusion module, and the analysis output module is used for outputting an ash content predicted value and an ash content category; and inputting the coal sample target images corresponding to different modes into the trained detection model to obtain ash content predicted values and ash content categories of the collected coal samples. By utilizing the method disclosed by the invention, the ash content of the slack coal product can be detected more quickly and accurately.

The invention relates to the technical field of pulverized coal screening, and discloses a thermal power plant pulverized coal screening device which comprises a shell, the top of the shell is fixedly connected with a feeding pipe communicating with the interior of the shell, a grinding assembly for conducting auxiliary grinding on pulverized coal is arranged in the feeding pipe, and the inner walls of the two sides of the shell are each fixedly connected with two fixing blocks; sliding holes are formed in the tops of the multiple fixing blocks, supporting rods are slidably connected into the sliding holes, and a first filter plate inclining downwards is fixedly connected to the top ends of the supporting rods. According to the coal ash screening device, coal ash with the diameter smaller than 20 micrometers can be absorbed, so that secondary screening of the coal ash is not needed, the screening efficiency of the coal ash is improved, the coal ash can be pulverized in an auxiliary mode, the size of the coal ash is reduced, and the using effect of the screening device is improved; and coal ash can be prevented from being accumulated in filter holes of the second filter plate to block the filter holes to affect air outlet of the fan, and normal use of the ash suction mechanism is guaranteed.

It has been unexpectedly discovered that the addition of a natural or other pozzolan to non-spec coal ash significantly improves the properties of the non-spec coal ash to the extent it can be certified under ASTM C618 and AASHTO 295, as either a Class F or Class C coal ash. The natural pozzolan may be a volcanic ejecta, such as pumice or perlite. Other pozzolans may also be used for this beneficiation process. Many pozzolans are experimentally tested and may be used to beneficiate non-spec coal ash into certifiable Class F coal ash. Additionally, this disclosure provides a method of converting a Class C coal ash to a more valuable Class F coal ash. This discovery will extend diminishing Class F coal ash supplies and turn non-spec coal ash waste streams into valuable, certified coal ash pozzolan which will protect and enhance concrete, mortars and grouts.

The utility model relates to the technical field of coal feeders, in particular to a coal feeder cleaning device which comprises mounting frames, rotating rollers are arranged between the mounting frames, a conveying belt is arranged on the rotating rollers, firstly, the conveying belt is driven by a driving motor to rotate, then coal briquettes are driven to be conveyed, and in the conveying process, the coal briquettes are conveyed through the conveying belt. The scraping plate is located at the bottom of the conveying belt, residual coal slag on the surface of the conveying belt can be scraped down through the scraping plate and falls into the collecting box, meanwhile, the driving motor can drive the driven wheel through transmission of the driving wheel and the belt, the driven wheel drives the brush rod to rotate, and coal ash on the surface of the conveying belt is swept down through the brush rod. According to the coal feeder, the conveying belt is arranged in the collecting box and falls into the collecting box, follow-up treatment is facilitated, manual sweeping is not needed, the tightness of the conveying belt can be adjusted through up-down adjustment of the adjusting roller, only the double-shaft motor needs to be started during adjustment, the adjusting process is simpler and faster, and the use efficiency of the coal feeder cannot be affected.

The invention discloses a powder selecting device for a power plant, and relates to the field of powder selecting devices, the powder selecting device comprises a main separating cylinder and a plurality of auxiliary separating cylinders, a communicating sleeve is mounted on the main separating cylinder, the plurality of auxiliary separating cylinders are all connected to the communicating sleeve, and air pipes are connected to the two auxiliary separating cylinders located on the same side. It needs to be explained that in the embodiment of the invention, when the coal ash is selected, the coal ash is effectively scattered through throwing and heating, and the coal ash is prevented from being affected with damp, agglomerated and adhered to the interior of the main separation barrel; through intermittent discharging, the coal ash can be dredged, and the problem that the bottom coal ash is too large in pressure intensity and blocks cannot be discharged is solved; besides, if the humidity of the coal ash is high and the heating wire cannot dry the coal ash in time, the adapter barrel can be closed in time, the problem that much humid coal ash enters the main separation barrel to cause blockage in the main separation barrel is avoided, meanwhile, workers can conveniently handle the coal ash in time, and therefore loss can be effectively avoided for a power plant.

The present invention relates to the technical field of coal ash component determination, and in particular to a method and system for coal ash component determination. The method comprises: performing X-ray diffraction on a coal ash sample to obtain an XRD pattern, detecting the XRD pattern to obtain multiple peak-finding windows; calculating the significance of significant peaks within the peak-finding windows, and using the peak-finding windows with significance levels within the significant interval as characteristic regions; heating the coal ash sample to a first temperature interval to obtain XRD patterns at different temperatures, and determining whether significant peaks within the characteristic region at the same position are overlapping peaks based on the obtained multiple XRD patterns; heating the coal ash sample from the first temperature interval to a second temperature interval to obtain XRD patterns at different temperatures, updating the positions of the peak-finding windows, and further determining the positions of overlapping peaks for coal ash component detection. The present invention takes into account the influence of overlapping peaks when analyzing coal ash components, thereby improving the accuracy of coal ash component analysis results.

The utility model discloses a pneumatic coal dressing auxiliary dust removal device which comprises pneumatic coal dressing equipment, and auxiliary dust removal devices are installed at the left end and the right end of the rear side of the pneumatic coal dressing equipment. According to the coal dust removal device, dust can be effectively removed from coal ash in the wind power coal dressing process by installing the auxiliary dust removal device, the good operation environment and the health of operators are ensured, water in the water storage ring can be atomized and sprayed out by arranging the atomization nozzle, then dust removal treatment can be carried out on the passing coal ash, and the dust removal efficiency is improved. Dust particles in coal ash can be rapidly adsorbed, water drops carrying the dust particles gradually settle to an annular plate and enter a recycling ring through a first through hole and a second through hole, a filter screen and a filter membrane arranged in the recycling ring can filter sewage, the sewage returns to a water storage ring through a water conveying pipe and a water pump to be recycled, and water resources are saved; and the bottom plate, the filter screen and the filter membrane are mounted through bolts and are convenient to disassemble and replace.

The present application relates to a kind of bauxite clinker kiln method and system for disposing aluminum ash, belong to metallurgical environmental protection technical field, the method includes the following steps: pretreatment aluminum ash, obtain fine powder aluminum ash;Fine powder aluminum ash is added to bauxite slurry, so that fine powder aluminum ash and the dry raw material and calcined coal ash in bauxite slurry are mixed, and mixed sintering is carried out, and then cooling is carried out, to obtain clinker;The present application carries out resource utilization to aluminum ash, replaces part of aluminum ore, and is used in the production of aluminum-based new material product, while reducing the production cost of aluminum-based new material product, realizes the harmless treatment of aluminum ash.

The utility model relates to the technical field of cement production, and discloses a screening structure for reducing coal ash adhesion. The screening structure capable of reducing coal ash adhesion comprises a supporting frame, a limiting pipe is fixedly installed above the supporting frame, a chip groove is fixedly formed in the outer side of the limiting pipe, a driving motor is installed on the front side of the supporting frame in a penetrating and inserting mode, and when the driving motor drives a driving gear to rotate, the chip groove is fixedly formed in the front side of the supporting frame. The movable ring can be driven by the transmission gear to enable the metal screen to rotate, the transmission motor can drive the brush and the baffle to rotate through the driving shaft when started, the relative position between the baffle and the metal screen is changed, the baffle shifts coal ash above the metal screen, and relative displacement is generated between the coal ash and the metal screen. In this way, coal ash can quickly pass through the metal screen, the time for the coal ash to pass through the metal screen is shortened, meanwhile, the coal ash can be evenly distributed above the metal screen, and therefore the screening efficiency is improved.

The utility model discloses a coal powder cleaning device for coal belt cleaning relates to cleaning device technical field. A coal powder cleaning device for coal belt cleaning, including belt conveying table and fixed base, belt conveying table fixed connection is at the top of fixed base, the ash cleaning structure is located on the fixed base, and the ash cleaning structure is including cleaning box, two support plates, two electric telescopic link, cleaning roller brush, driving motor and cleaning scraper, and the mechanical friction of cleaning roller brush removes the ash that sticks to the belt surface, and the cleaning scraper is scraped to remove the ash that remains the roller brush, effectively avoids secondary pollution, compared with single ash scraping plate cleaning, can handle big granular ash and adhered dust simultaneously, simultaneously, the negative pressure dust collection channel that exhaust fan, dust collection square pipe and dust collection mouth constitute can capture suspended fine dust in time, solve the problem that only rely on ash scraping plate cleaning leads to small granular dust to drift in traditional, realize the all -round cleaning to the ash on the belt surface.

The invention discloses a circulating blast furnace top gas high-temperature reforming system and method, and relates to the technical field of circulating blast furnaces. The circulating blast furnace top gas high-temperature reforming system comprises a circulating blast furnace, a gasification furnace device, a reformed gas treatment module and a waste heat recovery module, the gasification furnace device is connected with the circulating blast furnace, and the reformed gas treatment module is connected with the gasification furnace device and the circulating blast furnace. The reformer device is configured to receive the reformed gas discharged by the gasifier device, treat the reformed gas and then input the treated reformed gas into the circulating blast furnace; and the waste heat recovery module is configured to receive coal ash discharged by the gasification furnace device and preheat lump coal entering the gasification furnace device by utilizing waste heat of the coal ash. Based on the technical scheme disclosed by the invention, the heat utilization rate in the coal gasification process is remarkably improved, the energy consumption in the coal gas reforming process is reduced, and resource utilization and low-carbon clean development of metallurgical coal gas can be realized.

The utility model discloses a dust suppression device for a coal conveyor, which effectively realizes a better dust suppression effect and comprises a conveyor belt driven by the coal conveyor and used for conveying coal, a collecting box for collecting pulverized coal is arranged on the lower side of the conveyor belt, two rollers are abutted against the lower side of the conveyor belt, and the rollers are arranged on the lower side of the conveyor belt. The lower side of each roller is provided with a scraping plate used for scraping coal powder on the outer side of the roller, a movable adjusting plate is arranged in the collecting box, the bottom of each scraping plate is rotationally connected with the adjusting plate, and a spraying mechanism used for dust suppression is arranged in the collecting box. The device is simple and convenient to operate, the purpose of conveniently cleaning the conveying belt is effectively achieved, a worker can conveniently install the device and conveniently operate the device, the function of adjusting the pressing force is added, and collected coal ash can be conveniently removed.

The invention relates to the technical field of thermal power plant equipment, and discloses novel thermal power plant high-wear-resistance coal crushing equipment which comprises a main frame body, and a crushing mechanism is installed on the upper half portion of the main frame body and used for crushing coal; the screening mechanism is arranged in the middle of the main frame body and is used for screening and returning the crushed coal; the dust collecting and briquetting mechanism is mounted below the left side of the main frame body and is used for absorbing coal ash in the crushing process and performing briquetting treatment; the funnel is mounted on one side of the upper part of the main frame body and is used for enabling the coal to enter the crushing mechanism; and the conveying belt is mounted in the screening mechanism, so that the crushed and screened coal is conveyed into the coal cinder box. After the hydraulic rod stretches backwards, compressed coal briquettes are conveyed into the coal briquette box, the device can be used for absorbing coal ash, the compressed coal briquettes can serve as coal fuel to be continuously used, the problem that the coal ash recovery efficiency is low is solved by arranging the dust collecting device, and the working efficiency is improved.

A method for accurately and efficiently desodium of high-sodium coal, comprising the following steps: detecting the moisture M of the high-sodium raw coal to be treated t , calculating the total sodium content M of the wet basis coal sample Na , converting the total sodium content M of the dry basis coal sample Na , determining the Na2O content in the ash of the high-sodium raw coal to be treated; selecting the key factors affecting the desodium rate; establishing the relationship model between the key factors and the actual desodium rate; according to the Na2O content in the ash and the requirements of the standard, the desodium rate of the high-sodium raw coal to be treated is converted, and the Re target value is obtained; the Re target value is brought into the relationship model, and the selection and value of the key factors of the high-sodium raw coal to be treated during desodium treatment are obtained respectively, and finally the actual leaching desodium of the high-sodium raw coal to be treated is carried out to obtain low-sodium coal meeting the requirements. The method can accurately desodium, reduce cost, energy consumption and corrosion and pollution generated in the production process, and has important significance for guiding large-scale application of high-sodium coal desodium.