540 results about "Coal waste" patented technology

The invention belongs to the field of coal waste gas treatment, and particularly relates to a coal waste gas comprehensive utilization dynamic optimization method and system based on big data, and the dynamic optimization method comprises the following specific steps: S1, collecting and preprocessing multi-source data; s2, big data analysis and model construction: constructing a waste gas generation prediction model, a resource recovery potential evaluation model and a waste gas treatment effect evaluation model; and S3, dynamic optimization decision making and implementation: monitoring key indexes in real time and performing early warning, and through accurate waste gas generation prediction and real-time equipment performance monitoring, waste gas treatment process parameters can be adjusted in time, it is ensured that waste gas treatment equipment is always in an optimal operation state, the waste gas treatment efficiency is effectively improved, the pollutant emission concentration is reduced, and the energy consumption is reduced. The waste gas treatment quality is improved, so that the emission index more stably meets the environmental protection standard.

The invention discloses a low-temperature methanol washing RTO tail gas treatment device adopting a self-circulation air cooling double-valve-plate butterfly valve, and relates to the technical field of waste gas treatment. By arranging the condensation impurity removal mechanism, when coal waste gas passes through one condensation assembly, low-temperature tail gas cleaned by the low-temperature methanol washing mechanism can flow through a plurality of heat exchange pipes in the condensation assembly at the same time, so that the temperature of the outer walls of the heat exchange pipes is rapidly reduced to be below zero DEG C; coal tar gas and water vapor flowing through the low-temperature heat exchange pipe can be quickly cooled and solidified after being in contact with the outer wall of the low-temperature heat exchange pipe, so that the effect of separating the coal tar gas and the water vapor from the tail gas is achieved; a cold source which cannot be utilized and can influence subsequent RTO furnace treatment in the part of tail gas is ingeniously used for separating energy of coal tar and water vapor in the waste gas, a refrigerating device does not need to be independently arranged in the cooling and condensing process of the coal tar and the water vapor, and the purposes of energy conservation and emission reduction are achieved.

The invention relates to the field of coal mining, in particular to an ultra-narrow multifunctional reversed loader suitable for a coal mine tunnel, and aims to solve the problem that an excavator in the prior art is inconvenient to convey a coal mine in a narrow pipeline. The crawler walking assembly is mounted at the bottom of the saddle, the mounting frame is fixed to the top of the saddle, and a conveying space is formed between the mounting frame and the top of the saddle; the excavating mechanism comprises a rotary table rotationally connected to the top of the mounting frame, an excavating arm assembly mounted on the rotary table and a driving part mounted on the top surface of the mounting frame and used for driving the rotary table to rotate; and the material conveying mechanism comprises a fixing frame mounted at the top of the saddle, a conveying belt mounted on the fixing frame and a material receiving table mounted at the head of the fixing frame. According to the excavator, excavated coal in the bucket can be conveniently conveyed to the rear portion of the excavator through the conveying belt, and coal cinder adhering to the material guide plate can be conveniently cleaned.

The invention belongs to the technical field of coal bed gas exploitation, and particularly relates to a method for achieving multiple purposes of a coal bed gas horizontal well. Firstly, a horizontal well is constructed in a coal seam, staged fracturing is conducted to increase permeability, coal bed gas ground extraction is achieved, when the coal bed gas yield cannot reach the economic recoverable condition, coal underground gasification is conducted through the horizontal well, and finally carbon dioxide obtained after gasification separation or other output is injected for storage through underground residual coal and coal cinder gaps. Multiple purposes of the coal bed gas horizontal well are achieved; through one-well multi-stage utilization, the functions of coal bed gas extraction, coal underground gasification, carbon dioxide storage and the like are achieved step by step, and the comprehensive cost is reduced by 40% or above.

The ceramic tile is prepared from the following components in parts by weight: 20 to 30 parts of waste ceramic chips, 30 to 40 parts of gel particles, 10 to 20 parts of a precursor material, 5 to 8 parts of carbon nanofibers, 6 to 8 parts of magnesium oxide, 10 to 12 parts of a binder, 10 to 15 parts of coal cinder and 18 to 20 parts of kaolin. According to the ceramic tile prepared from the waste materials and the preparation method of the ceramic tile, the prepared ceramic tile has excellent strength and good mechanical performance.

The invention discloses a pebble coal waste heat utilization system and method of a coal-fired unit coupled heat insulation furnace, and belongs to the technical field of energy utilization and energy conservation. Comprising a heat insulation furnace body, a pebble coal crushing unit, an air supply unit, a diesel oil ignition unit, an ash blowing unit, a high-temperature flue gas mixing unit and an ash slag unit, wherein the pebble coal crushing unit, the air supply unit and the diesel oil ignition unit are connected with the feeding end of the heat insulation furnace body; the ash blowing unit and the high-temperature flue gas mixing unit are connected with the flue gas outlet end of the heat insulation furnace body; and the compressed air unit is respectively connected with the heat insulation furnace body, the soot blowing unit and the air supply unit. Based on the stable combustion characteristic of an adiabatic furnace, pebble coal is crushed and then combusted through the adiabatic furnace, after combustion, the pebble coal is mixed with a hot secondary air system of a pulverized coal furnace through hot flue gas, meanwhile, an effective pebble coal treatment mode and hot secondary air temperature rising are provided, solid waste treatment of a unit is achieved, and the flexibility of the unit is improved.

The invention provides a coal mine air way floor heave cleaning device and method. The coal mine air way floor heave cleaning device comprises a crawler-type excavator assembly, a conveying mechanism and a supporting mechanism. The crawler-type digging machine assembly is arranged beside a working face of an air way roadway and used for crushing and collecting floor heaves of the air way and transferring collected gangue coal cinder materials to the conveying mechanism; the conveying mechanism is connected to the rear end of the crawler-type digging machine assembly and used for conveying gangue coal cinder materials to a goaf. The supporting mechanisms are arranged on the periphery of the crawler-type excavator assembly and the periphery of the conveying mechanism correspondingly and used for supporting the air way roadway. When the coal mine air way floor heave cleaning device is used for cleaning a floor heave, crushing, slag cleaning, loading and transporting, transshipping and continuous conveying and discharging can be carried out at the same time, and the propelling efficiency of a fully mechanized coal mining face of a coal mine is improved.

The invention relates to the technical field of coal mine roadway tunneling and supporting, in particular to a tunneling and anchoring all-in-one machine suitable for complex geological roadways, which comprises a walking body part, a loading part, a conveying part, a cutting part, a drilling and anchoring platform and a dust removal and temporary supporting system, a rear support deviation adjusting system is arranged at the tail part of the walking body part; the cutting part is used for tunneling, the loading part is used for collecting coal cinder, and the transporting part is used for receiving and transporting coal cinder; the anchor drilling platform comprises a top anchor supporting unit and a side anchor supporting unit; the dust removal and temporary supporting system comprises a supporting frame body, a supporting top plate is arranged on the supporting frame body in a sliding mode, and a telescopic supporting top rod is arranged between the supporting frame body and the walking body part. The invention further provides an anchor protection method suitable for the complex geological roadway, and the problems that in the current weak surrounding rock coal roadway tunneling three-soft stratum, wall caving is prone to occurring, roof caving is prone to occurring, wall breaking is prone to occurring, anchor rod supporting of a low roadway is difficult, and bottom plate argillization equipment is prone to tail swinging are solved.

A mining submersible slurry pump with stirring and crushing functions comprises a pump body and an impeller, a rotating shaft for driving the impeller to rotate is rotatably arranged in the pump body, a filter cylinder is arranged at a water inlet of the pump body through a detachable structure, the rotating shaft extends into the filter cylinder and is provided with a moving cutter through a fixed structure, and the filter cylinder is provided with a static cutter through a sliding structure. According to the mining submersible slurry pump, the stirring function, the crushing function, the shearing function and the automatic tensioning function of the movable cutter and the static cutter are integrated at the bottom of the pump body, the technological process is simplified, and the occupied area of equipment is reduced; the synergistic effect of the stirring assembly, the crushing assembly and the shearing assembly is optimized, the treatment capacity of complex ore pulp containing large-particle ore, coal cinder, silt, ropes, fibers and the like is improved, and the operation and maintenance cost is reduced.

The utility model discloses a preparation device of a dry quenching coal slag adsorbent for CO2 adsorption, which relates to the technical field of carbon dioxide adsorbent preparation equipment and comprises an ammonification tower, a filtering device, a reaction washing device, a granulation forming device and a drying device which are sequentially connected from front to back, the ammonification tower comprises a water vapor outlet in the top, an ammonification reaction part in the middle and an ammonification coal slag outlet in the bottom from top to bottom, and the water vapor outlet is connected with a wastewater storage tank; the ammoniation reaction part comprises a plurality of slope-shaped ammoniation steps which are arranged from top to bottom, the topmost ends of the ammoniation steps are connected with dry quenching coal slag inlets, each ammoniation step consists of an ammoniation table top and ammonia water pipes, one ammonia water pipe is arranged between every two ammoniation table tops, and the ammonia water pipes are communicated with the ammoniation table tops. The ammonia water pipe is provided with a plurality of ammoniation nozzles for spraying ammonia water to the ammoniation table top, an ammonia water inlet of the ammonia water pipe is fixed on a shell of the ammoniation tower, and the ammonia water inlet is connected with an external ammonia water pipeline; and the ammoniated coal slag outlet is connected with the filtering device.

The utility model relates to the technical field of coal chemical industry processing equipment, and particularly discloses a coal chemical industry separation tower which comprises an upper filter plate and a lower filter plate, a lower filter plate; a cleaning brush; and a wedge block. According to the utility model, the filter holes in the upper filter plate are cleaned through the cleaning brush, meanwhile, the wedge-shaped grooves in the cleaning brush are in contact with the wedge-shaped blocks, the wedge-shaped blocks drive the upper filter plate and the lower filter plate to move downwards due to the fact that power exists when the cleaning brush rotates, meanwhile, the elastic pieces are compressed, and when the wedge-shaped grooves in the cleaning brush cross over the wedge-shaped blocks, the wedge-shaped blocks are released from limitation, so that the filter holes in the upper filter plate and the lower filter plate are cleaned. At the moment, the elastic piece rebounds, so that the upper filter plate and the lower filter plate return to original positions, the upper filter plate and the lower filter plate shake in the process, the coal cinder blocked in the filter holes can penetrate through the filter holes to continue to fall down, the coal cinder is further effectively prevented from blocking the filter holes in cooperation with cleaning of a cleaning brush, and the situation that the filter holes are blocked to affect penetration of other coal cinder is effectively avoided; therefore, the separation effect is improved.

The invention discloses a preparation method of planting soil prepared from industrial waste, and relates to the technical field of preparation of the planting soil prepared from the industrial waste, and the preparation method of the planting soil prepared from the industrial waste comprises the following steps: step 1, crushing mine waste residues by using a crusher; according to the invention, the planting soil is prepared by crushing waste residues, coal gangue, coal cinder and mineral separation residues abandoned by mining and matching the crushed waste residues, coal gangue, coal cinder and mineral separation residues with traditional Chinese medicine residues, waste bacteria sticks and sludge obtained after urban sewage treatment according to a certain proportion, and the traditional Chinese medicine residues, the waste bacteria sticks and the urban water treatment sludge can be independently mixed with slag to prepare the soil, or can be mixed for many times to prepare the soil; according to the method, waste residues, coal gangue, coal cinder and mineral separation residues which are abandoned by mining are smashed and matched with traditional Chinese medicine residues, waste bacteria sticks and sludge obtained after urban sewage treatment according to a certain proportion to prepare the planting soil, and the traditional Chinese medicine residues, the waste bacteria sticks and the urban water treatment sludge can be independently mixed with slag to prepare the soil and can also be mixed for many times to prepare the soil.

The invention provides an AI vision-based coal cinder amount intelligent detection early warning method and system, and the method comprises the steps: synchronously collecting the surface feature information, thermal radiation feature and internal structure information of a slag hopper of a slag conveyor through a dual-spectrum camera, and obtaining a dual-spectrum image; pixel-level coal cinder segmentation is carried out on the double-spectrum image; based on the segmentation result, counting the pixel proportion of the coal cinder area, and converting the pixel proportion into the actual coal cinder total amount proportion; identifying the segmented coal cinder area by adopting connected domain analysis, dynamically adjusting a size judgment threshold value through contour analysis and geometric feature extraction in combination with the bearing capacity of the slag conveyor, and determining whether large coal cinder exists or not; when the actual coal cinder total amount proportion is larger than the preset threshold value or large coal cinder exists, the risk level is generated to trigger the multi-level early warning control action, the actual coal cinder total amount proportion and the large coal cinder are automatically recognized through double-spectrum fusion segmentation, and early warning is given out when abnormity occurs, so that the accuracy and the real-time performance of coal cinder amount detection are effectively improved.

The invention provides a gasification furnace, an oxygen flow control method of a first-section coal burner of the gasification furnace and the gasification furnace. The gasification furnace comprises a furnace body, a first-section coal burner and a second-section coal burner, the first-section coal burner is communicated with the side wall of the furnace body; the second-section coal burner is communicated with the side wall of the furnace body and is positioned above the first-section coal burner; the gas outlet is communicated with the top of the furnace body; and the coal cinder outlet is communicated with the bottom of the furnace body. According to the technical scheme provided by the invention, the problem of energy waste of the gasification furnace caused by relatively low conversion rate of the dry pulverized coal synthetic gas in related technologies is effectively solved.

The invention discloses a device and method for denitrification by co-combustion of microwave-activated coke. The device includes a coal feeding hopper and a furnace. Coal is input onto a chain grate, and the coal cinder after combustion enters an ash hopper. The flue gas flows out through the outlet flue of the chain grate. The tail of the outlet flue of the chain grate is connected to the outlet flue of a dust collector, and a dust collector is arranged on the outlet flue of the dust collector. The tail of the outlet flue of the dust collector is respectively connected to a draft fan and a flue gas recirculation flue. Part of the flue gas flows out through the draft fan, and the other part of the flue gas enters the flue gas recirculation flue. A feeder on the flue gas recirculation flue inputs coke into the flue. The coke is mixed with the flue gas and then enters a microwave generator. The reacted coke is sprayed into the furnace through a coke spray gun. The ability of coke to reduce nitrogen oxides is improved by the microwave activation effect, and then the reacted coke is sprayed into the high-temperature and low-oxygen space in the furnace. While the coke is cyclically burned out, nitrogen oxides are also removed, and no secondary pollution to the environment will be caused.

The invention provides an underground coal mine electric locomotive transportation system. The underground coal mine electric locomotive transportation system comprises an electric locomotive body, two rails, a cleaning assembly, a limiting assembly, a smearing assembly, a conveying device and a lifting device. According to the coal mine underground electric locomotive transportation system, the cleaning brush of the cleaning assembly makes contact with the surface of the rail, coal cinder and sundries on the surface of the rail can be removed in real time along with running of the electric locomotive body, it is avoided that abrasion of the rail is aggravated by the impurities, and the manual cleaning cost is reduced; the smearing assembly evenly smears a lubricant conveyed by the conveying device to the surface of the track through smearing cotton, and in cooperation with pretreatment of the cleaning assembly, track abrasion can be effectively reduced, the service life of the track is prolonged, and the manual maintenance frequency is reduced. The circular limiting block of the limiting assembly is attached to the inner side wall of the rail, abutting limiting is provided when the electric locomotive body deviates transversely, derailing is prevented, and the driving safety is improved.

The invention belongs to the technical field of coal mine gas extraction, and particularly relates to a coal mine goaf gas drainage device. Comprising an exhaust pipe, a water inlet pipe, a water outlet pipe, a collecting pipe, an exhaust pump and a cyclone separator, one end of an air inlet of the exhaust pipe is connected with a coal briquette crushing assembly, one end of an air outlet of the exhaust pipe is connected with a cyclone separator through an air pump, a water inlet pipe is fixedly connected below the exhaust pipe, and a coal cinder filtering assembly is arranged in the water inlet pipe; the exhaust pipe is connected with a helium adjusting assembly; by means of coal briquette chopping and coal cinder filtering treatment, the coal cinder can be prevented from influencing the gas extraction efficiency, meanwhile, by installing a helium adjusting device, quantitative helium is released while gas is extracted, pressure distribution in a goaf is kept, and the risk of coal mine collapse is reduced.

The invention discloses a solid waste based cementing material and a preparation method thereof, and belongs to the technical field of building materials. The solid waste-based cementing material is prepared from the following components in percentage by mass: 35-45% of calcined carbide slag, 15-25% of blast furnace slag, 15-25% of steel slag, 5-10% of coal cinder and 10-15% of carbide slag, wherein the content of CaO in the calcined carbide slag is not lower than 65 wt.%, and the content of Ca (OH) 2 in the carbide slag is not lower than 70 wt.%. According to the invention, the high-activity waste-based cementing material is obtained through reasonable selection and dosage allocation of the slag solid waste, and the solid waste-based cementing material does not need to be added with a conventional strong alkali activator, so that the cost is greatly saved. The solid waste-based cementing material provided by the invention adopts cheap all-solid waste materials as raw materials, and the preparation method is simple, so that the solid waste-based cementing material is very beneficial to large-scale popularization and application.

The invention belongs to the technical field of mine drainage, and particularly relates to a coal mine underground intelligent drainage device and an operation method thereof. Comprising a first mounting base, a second mounting base, a water suction pump and a main pipe, the water suction pump is fixedly mounted at the top of the first mounting base, a drainage pipe is fixedly connected to one end of the water suction pump, a three-way pipe is fixedly connected to the other end of the water suction pump, first water inlet pipes are fixedly connected to the two sides of the three-way pipe, and branch pipes are fixedly connected to the ends, away from the three-way pipe, of the first water inlet pipes; the ends, away from the first water inlet pipe, of the two branch pipes are fixedly connected with the main pipe, and a first valve is installed on the first water inlet pipe. According to the invention, coal cinder attached to the filter element can be effectively cleaned, convenience is provided for reuse of the filter element, seamless connection drainage can be realized by adjusting a waterway, and the situation that the drainage efficiency of a mine is reduced due to stopping of mine drainage is avoided.

The invention is applicable to the technical field of road construction, and provides a digging and filling method for highway subgrade construction, which comprises the following steps: T1, carrying out construction operation according to a construction drawing, digging a pavement through a digging machine to form a groove, and piling dug soil on the ground on two sides of the groove; t2, the grooves are evenly filled with filling materials such as stone, coal cinder and gravel; t3, the road roller is controlled to slowly move along the foundation pit, a soil returning device at the front end of the road roller is used for backfilling soil on the two sides of the foundation pit, and a compaction steel wheel at the rear end of the road roller is used for compacting the backfilled groove; the soil returning device comprises a fixing assembly and a backfilling assembly arranged on the fixing assembly in a sliding mode. According to the method, the rotating shaft is controlled to rotate to drive the two sets of spiral conveying blades with opposite spiral directions to synchronously rotate, most of soil on the two sides of the groove is conveyed into the groove, the two sets of bulldozing plates are driven to push the residual coating into the groove through linkage of all the parts, and the backfilling efficiency is improved.

The utility model provides a CFB (circulating fluidized bed) boiler coal cinder unpowered unfired coal particle separation system, which relates to the technical field of unpowered unfired coal particle separation, and comprises a cinder bin, a bucket elevator, a fine ash separation part, a secondary separation part and a tertiary separation part, the third-time separation part is used for carrying out third-time separation on the coal slag which passes through the second-time separation part but is not conveyed into the slag bin, the third-time separation part is used for separating gangue particles with relatively large volume and density and conveying the gangue particles into the slag bin, and the remaining coal slag / raw coal with high calorific value is conveyed into the boiler; the device can separate out unburnt raw coal particles in slag and return the unburnt raw coal particles to the furnace for re-burning, so that the problems that the raw coal is mixed with gangue, the crushing does not reach the standard and the coal particles are too large, and a special design structure for feeding coal falling, fluidization, material returning circulation and slag discharging in the hearth is adopted are reduced; and therefore, the waste of raw coal energy sources is reduced, and the waste of the raw coal energy sources is reduced.

The gas-water separation device comprises a tank body, and the tank body comprises an upper-layer defoaming part, a middle-layer collecting part and a lower-layer water collecting part which are sequentially connected from top to bottom; a feeding hole is formed in the side wall of the upper-layer defoaming part, an exhaust hole is formed in the top end of the upper-layer defoaming part, and a drainage hole is formed in the bottom of the lower-layer water collecting part; a sealing shell is fixed in the upper-layer defoaming part, a rotating power source, a rotating joint and a rotating shaft are mounted in the sealing shell, a liquid inlet channel and a liquid outlet channel which are communicated with each other are arranged in the rotating shaft, and a condensation sleeve is fixed on the periphery of the upper-layer defoaming part; a condensation mechanism, an upper-layer umbrella plate separator, a lower-layer umbrella plate separator and a connecting frame are fixed on the rotating shaft, a guide cylinder is hermetically fixed at the bottom of the upper-layer defoaming part, a centrifugal conical cylinder sleeves the periphery of the guide cylinder, a drainage filter screen is mounted at the bottom of the centrifugal conical cylinder, and the connecting frame is fixedly connected with the centrifugal conical cylinder. The gas and water separation effect can be improved, automatic cleaning of coal cinder is achieved, and gas extraction work is prevented from being affected due to blockage.

The invention belongs to the technical field of coal mining machine maintenance instruments, and particularly relates to a coal mining machine large-scale component auxiliary dismounting tool which comprises a trolley and a machine box installed at the top of the trolley, a controller is installed on the side wall of the machine box, the coal mining machine large-scale component auxiliary dismounting tool further comprises a bearing column, the bearing column is arranged on one side of the machine box, a square column is fixedly installed at the end of the bearing column, and the square column is fixedly connected with the trolley. The bearing column and the square column are used for bearing the cutting roller; the four transverse pushing hydraulic oil cylinders are fixedly connected to the side wall of the machine box in an inserted mode and annularly and evenly distributed about the axis of the bearing column, and the telescopic ends of the four transverse pushing hydraulic oil cylinders are jointly and fixedly connected with a supporting ring. By means of horizontal pushing and supporting, the stability when the cutting roller of the coal mining machine is disassembled can be greatly improved, the safety of disassembling the cutting roller is improved in an auxiliary mode, after the cutting roller is disassembled, the gravity center of the cutting roller can be automatically adjusted, the phenomenon of shaking when the cutting roller is rotated out is avoided, and meanwhile the cutting roller can be conveniently disassembled. Coal cinder on the surface of the cutting roller can be cleaned.

The invention relates to the technical field of inventory management, and discloses a power plant coal inventory intelligent prediction management system, which is characterized in that an acquisition construction module acquires historical inventory influence data and coal inventory, and constructs a coal inventory prediction analysis chain; the classification calculation module calculates historical average inventory influence data, classifies the historical inventory influence data and calculates historical coal influence factors; the factor calculation module calculates a first sub-coal inventory prediction factor and a second sub-coal inventory prediction factor according to the historical coal influence factor and the coal inventory; a construction calculation module constructs a coal inventory prediction set and calculates a comprehensive coal inventory prediction factor; the inventory prediction module judges whether the current coal inventory is managed or not according to the comprehensive coal inventory prediction factor, if yes, the amount of coal entering the warehouse is determined, intelligent prediction of the coal inventory is achieved, the coal prediction accuracy is improved, the inventory level is made to be matched with the actual demand, coal waste is avoided, and the stability and continuity of coal supply are ensured.

The utility model discloses a multi-stage filtration coal sinking system for flushing waste coal water, including: a three-stage coal sinking ditch device and a waste coal water collecting device arranged in a stepped manner from top to bottom, the first coal sinking ditch is arranged horizontally, its inlet end is connected to the tail of the belt-washing coal slag ditch, and a detachable first filter is arranged at the outlet end; the second coal sinking ditch is stepped down to connect the first coal sinking ditch and its cross section is L-shaped, and a second filter is detachably provided at its outlet end; the third coal sinking ditch is stepped down to connect the second coal sinking ditch and its cross section is L-shaped, and a third filter is detachably provided at its outlet end; the inlet end of the waste coal water collecting device is connected to the third coal sinking ditch, a submerged water pump is provided inside, the first filter, the second filter, and the third filter are designed in stages, and an overflow tank is provided on the top side of each filter. The present application adopts multi-stage filtration, the device structure is simple, and the installation is convenient, which can realize the significant reduction and recycling of the coal content in the waste coal water.

The utility model provides a coal mine wastewater treatment device, which relates to the technical field of wastewater treatment and comprises a shell, mounting plates are movably arranged on the inner walls of the two sides of the shell, a filter screen is mounted between the two mounting plates, and a driving mechanism for controlling the filter screen to rotate is further arranged on one side of the outer surface of the shell. And material collecting grooves are formed in the two sides of the outer surface of the shell correspondingly, and a water outlet pipe is arranged on one side of the bottom of the shell. The first rotating rod is controlled by the servo motor to rotate in a reciprocating mode, the filter screen in the shell can be controlled to incline left and right in a reciprocating mode, when the filter screen inclines, coal cinder remaining on the surface can fall into the material collecting groove through the through groove, accumulation of the coal cinder on the surface of the filter screen can be effectively reduced, the filter screen cannot be blocked, and the service life of the coal cinder is prolonged. The filter screen does not need to be manually and frequently taken out for cleaning, the operation is convenient, and the wastewater treatment efficiency can be effectively improved.

The invention provides a coal cinder cooling process monitoring method and system, and belongs to the technical field of industrial automation and intelligent monitoring. According to the system, multiple sensors are arranged in a hearth of a coal cinder cooling section of a power plant boiler, and multi-dimensional data such as the thickness, temperature, air temperature, air pressure, air volume and hearth images of slag are collected. After data is subjected to filtering processing and normalization processing, visual features are extracted by using a convolutional neural network in combination with an attention mechanism, time sequence features are extracted by using a long-short-term memory network in combination with the attention mechanism, and multi-source features are fused to form comprehensive features. And the real-time state of the cooling process is visually presented through a data display module combining augmented reality and virtual reality technologies. And finally, an operation control module based on a self-adaptive control algorithm and a reinforcement learning algorithm monitors and intelligently adjusts the cooling process in real time. Accurate monitoring and intelligent regulation and control of the coal cinder cooling process can be achieved, the cooling efficiency and stability are improved, and the labor cost is reduced.

This invention provides a coal mine wastewater retreatment device, comprising a treatment tank with two sets of symmetrically distributed support legs fixed at the bottom. A filter screen is installed inside the treatment tank. An inlet pipe is connected to the top of one side of the treatment tank, and an outlet pipe is connected to the bottom of the other side. An adsorption mechanism for removing iron-containing impurities is installed at the top of the treatment tank, comprising a magnetic column with two symmetrically distributed circular plates fixed to its outer side. The coal mine wastewater retreatment device provided by this invention solves the problem that existing treatment devices' filters are limited to filtering coal slag and are not suitable for cleaning iron-containing impurities in coal mine wastewater. This results in iron-containing impurities mixing inside the coal mine wastewater and entering the environment along with the wastewater discharge, leading to high iron content in the environmental water and making the water prone to turbidity due to reaction with oxygen in the air.

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 utility model relates to the technical field of gas drainage, and discloses a gas-slag separation device for gas drainage in an underground coal mine, which comprises a separation shell, and a filter screen plate is vertically and fixedly connected inside the gas outlet end of the separation shell, so that solid impurities such as coal slag in gas can be filtered, and the gas drainage efficiency is improved. A worker can drive a valve plate connected with a second shaft rod and a third shaft rod to rotate in the slag discharging end of the separation shell through a hand wheel, when the valve plate rotates to be in an inclined state, coal slag in the slag discharging end of the separation shell can be discharged, meanwhile, the second shaft rod can drive a large bevel gear to rotate, and the large bevel gear is meshed with a second bevel gear, so that coal slag in the slag discharging end of the separation shell is discharged. A first bevel gear can be driven to rotate through a connecting rod, the first bevel gear is meshed with a small bevel gear, a cleaning brush can be driven to rotate on the outer side of a filter screen plate through a first shaft rod, and therefore in the slag discharging process of the separation shell, coal slag on the outer side of the filter screen plate can be automatically cleaned, and convenience and rapidness are achieved.