422 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 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 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 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 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 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 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 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.

The application discloses a kind of coal mine underground mining wear-resistant active resistance-reducing drill pipe and its use method, including drill pipe body, spiral steel sheet is arranged around the outer wall of drill pipe body, spiral steel sheet is arranged along the length direction of drill pipe body, ball is rotationally arranged on the side wall of spiral steel sheet away from drill pipe body, part of ball is located in spiral steel sheet, another part is located outside spiral steel sheet.In using the application, after setting the position of drilling machine and the angle of holder, the drill bit is connected with the new wear-resistant resistance-reducing drill pipe, and then the drill bit and the drill pipe are clamped with the holder, the drill bit and the drill pipe are rotated and drilled into the coal wall or rock wall, the coal slag and rock slag generated during drilling are discharged from the drill hole through the spiral steel sheet, the rotatable ball embedded on the spiral steel sheet, the resistance during drilling process is reduced, the efficiency is improved, the drill pipe wear is reduced, and the friction heat is reduced.For the service life of drill pipe, drilling efficiency and construction safety, all have been improved.

The invention belongs to the technical field of car dumper coal unloading, and particularly relates to a car dumper positioning and correcting system based on automatic control, the car dumper positioning and correcting system comprises a coal conveying carriage, a car dumper and a plurality of positioning mechanisms, each positioning mechanism comprises a correcting system, and limiting blocks are arranged in front of and behind the coal conveying carriage; the multiple positioning mechanisms are all installed on the car dumper and each comprise a rail, a sliding block, a correction block, an inductor and an induction head. The sliding block is connected to the interior of the rail in a sliding mode, the correction block is fixedly installed above the sliding block and is horizontally aligned with a limiting block of a coal car compartment, the inductor is fixedly installed below the rail, and the induction head is fixedly installed below the sliding block and is located above the inductor. According to the device, the problem that coal cinder cannot be fully warehoused during coal unloading due to the fact that high-precision quick positioning correction cannot be performed on a carriage when the carriage of a current coal conveyor moves to the position of a car dumper is solved.

The utility model belongs to the field of coal mine drilling blowout prevention holes, and aims to solve the problems that water and coal cinder in a hole easily and directly enter a main pipeline, gas fluctuation is easily caused by opening small negative pressure, and hidden dangers are caused to production efficiency and production safety in a traditional gas-water separation device. The utility model provides a common drill four-hole gas-water separator which comprises an upper-layer barrel, a lower-layer barrel and a pipeline connected between the upper-layer barrel and the lower-layer barrel. The upper surface of the upper-layer barrel body is provided with a pipe orifice for connecting a main pipeline negative pressure, an orifice blowout preventer, an orifice standby negative pressure and a hole wall standby negative pressure; the lower-layer barrel is located at the lower end of the upper-layer barrel, a second valve is arranged at the bottom of one side of the lower-layer barrel, and a first valve is arranged on a pipeline between the upper-layer barrel and the lower-layer barrel. The device is high in reliability, the problem that water and coal slag enter an extraction system in the drilling machine construction process can be effectively solved, and gas fluctuation caused by water drainage is avoided.

The invention discloses a dust suppression and removal device for a fully mechanized coal mining face, which comprises a first pipe and a second pipe which are radially distributed at intervals along an annular surface; the first pipe and the second pipe are provided with linear water outlets, and the extending lines of the linear water outlets in the first pipe and the second pipe intersect. The blocking plate is arranged on the periphery of the interval area between the first pipe and the second pipe, and gaps are formed between the two ends of the blocking plate and the first pipe and between the two ends of the blocking plate and the second pipe; a closed surface is formed on the periphery of the fully mechanized coal mining equipment through crossed water mist, so that the risk that dust overflows outwards is reduced, thrown-out coal cinder blocks can be impacted, the coal cinder blocks are assisted in being crushed and making contact with the water mist, the risk that dust is generated again after the coal cinder blocks are thrown out is reduced, and the dust suppression and removal effects are improved.

The utility model belongs to the field of transportation, particularly relates to a coal blocking device for a transshipment buffer area of a belt conveyor, and aims to solve the problems that some scattered coal mines can fall off in the transshipment process of an existing conveyor, follow-up transportation is affected, and waste is caused. According to the technical scheme, the device comprises a rack and a buffer plate, a rectangular hole is formed in the rack, a plurality of fixing plates are fixedly connected to the two sides of the top of the rack, the fixing plates are rotationally connected with the buffer plate, a collecting assembly is arranged below the rectangular hole, a fixing block is arranged at the top of the rack, and an adjusting assembly is arranged on the fixing block; when a conveyed coal mine falls off, the inclination degree of the buffer plate can be adjusted according to the size of the coal mine, the coal mine rapidly slides off through the inclined groove, the rotating plate can be pushed to rotate, one end of the adjusting screw pushes the buffer plate to swing in a small range, then residual coal cinder can be vibrated off through swing of the buffer plate, and the follow-up collecting process is facilitated.

The utility model belongs to the technical field of coal mine gas extraction, and discloses a gas drainage drill hole accumulated water and slag treatment device which comprises a water and slag storage box body, a slag accumulation net and a first layer of filter net are arranged in the water and slag storage box body from bottom to top, and a water and slag inlet, a water outlet and a slag outlet are formed in the side wall of the water and slag storage box body; the water and slag inlet is formed between the slag deposition net and the first-layer filter net and is used for mounting a first connecting pipe; the water outlet is formed in the bottom of the slag deposition net; the slag discharging opening is formed between the slag accumulating net and the first-layer filter net and is opposite to the water and slag inlet; a second connecting pipe is arranged at the top of the water and slag storage box and used for being connected with a negative pressure drainage pipe, and the negative pressure drainage pipe is used for sucking accumulated water and slag at the bottom of the gas drainage drill hole into the water and slag storage box through negative pressure. According to the utility model, the problem that the drainage pipeline is blocked due to accumulated water and coal slag after the drainage drill hole is opened is solved.

The present application provides an intelligent coal powder screening device, method, and system. In one example, a coal powder particle size detector is used to perform real-time detection of the coal powder particle size after being filtered by a dynamic screening device, determine the proportion of coal powder with a target particle size in the filtered coal powder, and send the target particle size proportion in the filtered coal powder to a controller; a coal powder separation device is used to separate the coal powder that has not passed through the dynamic screen, and the coal powder with a particle size larger than a specified value that has not passed through the dynamic screen is returned to the coal mill for re-grinding, and the remaining coal powder is conveyed to the screen of the dynamic screen for re-filtration, thereby reducing coal waste and improving coal powder screening efficiency; in addition, a coal powder concentration meter is used to measure the concentration of coal powder with a particle size larger than a specified value in the coal powder separation device in real time, and the coal powder concentration is sent to the controller, further improving coal powder filtration efficiency.

The utility model relates to the technical field of boiler continuous feeding mechanisms, in particular to a high-temperature and high-pressure boiler continuous feeding mechanism which is characterized in that coal cinder is placed in a drying mechanism, wet coal is dried by starting the drying mechanism, and the dried coal cinder is discharged to a feeding mechanism through the drying mechanism. The coal cinder is evenly placed in the boiler through cooperation of the feeding mechanism and the moving mechanism, the combustion rate of the coal cinder is increased, the coal loading box of the feeding mechanism is discharged by starting the auxiliary mechanism, and the practicability of the equipment is improved; a boiler is included; the device further comprises a drying mechanism, an exhaust mechanism, a feeding mechanism, a moving mechanism and an auxiliary mechanism, the boiler is located on the left side of the moving mechanism, the drying mechanism is installed on the moving mechanism, the exhaust mechanism is installed on the drying mechanism, the feeding mechanism is installed on the moving mechanism and located below the drying mechanism, and the auxiliary mechanism is installed on the moving mechanism. The auxiliary mechanism is located on the left of the drying mechanism.

The invention discloses a planting method for increasing the carbon sink capacity of a saline-alkali soil ecological system and application. A planting method for increasing the carbon sequestration capacity of a saline-alkali soil ecosystem adopts an agriculture and forestry composite planting mode, ricinus communis is planted in a forest land, the carbon sequestration capacity of the saline-alkali soil ecosystem is increased by matching a fertilizer and a soil conditioner, the fertilizer comprises a compound fertilizer, the nitrogen content of the compound fertilizer is 15-18%, the phosphorus content of the compound fertilizer is 15-18%, the potassium content of the compound fertilizer is 15-18%, the application amount of the compound fertilizer is 417-450 kg.ha <-1 >, and the application amount of the compound fertilizer is 20-30 kg.ha <-1 >. The soil conditioner comprises coal cinder charcoal or rice husk charcoal. According to the planting method, the soil carbon reserve can be increased, and the plant carbon sequestration amount and the ecological system carbon sequestration total amount are remarkably increased. A research result provides a theoretical basis for ecological restoration and sustainable utilization of the coastal saline-alkali soil, and shows that the aims of reducing saline-alkali obstacles and fixing carbon and increasing sink can be synchronously achieved through coupled application of biological measures and a soil improvement technology, and the method has important ecological practical value.

The utility model relates to the technical field of coal mine belt conveyors, in particular to a belt conveyor slag removal assembly used for a coal mine and a belt conveyor, the slag removal assembly comprises a base and a support, the support is installed on the base, and a through type first cavity is formed in the support; the top rollers are elastically mounted on the upper surface of the first cavity; the multiple cleaning brushes are elastically mounted on the lower surface of the first cavity; the first spraying assembly extends into the first cavity from the outside and can spray water to the cleaning brush; the sliding rail is installed on the base, and the support is installed on the sliding rail in a sliding mode; the reciprocating motion mechanism is installed on the base, connected with the support and used for driving the support to reciprocate on the sliding rail. The belt conveyor effectively solves the problem that coal cinder on the surface of the belt conveyor is not easy to clean in the prior art.

This utility model relates to the field of honeycomb briquette stove technology, and in particular discloses a honeycomb briquette stove with convenient slag removal, including a furnace frame and a furnace core mounted on the furnace frame for holding coal; it also includes a slag removal mechanism mounted on the furnace frame and used in conjunction with the furnace core. The slag removal mechanism includes a loading component, a slag pushing component movably mounted relative to the loading component, and a transmission mechanism that works in conjunction with the slag pushing component. The loading component is used to carry the coal located at the bottom of the furnace core. A first clearance space is provided between the loading component and the furnace core for the movement of the slag pushing component and the coal at the bottom of the furnace core. The user drives the slag pushing component to move back and forth through the transmission mechanism, so that the slag produced by the combustion of the coal at the bottom of the furnace core is pushed out. This utility model achieves rapid slag removal by setting a foot-operated transmission mechanism and using a mechanical slag pushing mechanism, avoiding the risks of manual operation and improving combustion efficiency; the setting of the limiting and dividing component further divides the slag during the removal process, preventing blockage and accumulation.

The utility model discloses an anti-blocking device for a deslagging box of a coal mill. The anti-blocking device comprises a deslagging cylinder and a connecting sleeve, mounting discs which are arranged at intervals up and down sleeve the outer side of the deslagging cylinder, and fixing holes which are formed around the deslagging cylinder are formed in the mounting discs; a connecting sleeve is further arranged between the two mounting discs, and the peripheries of the upper end and the lower end of the connecting sleeve are sleeved with fixing hoops for fixing the connecting sleeve to the peripheries of the mounting discs; the deslagging cylinder is installed on the inner side of the installation disc and fixed to the deslagging position of the deslagging box through the fixing holes formed in the installation disc, high-temperature coal slag, coke blocks and the like are isolated through the deslagging cylinder during deslagging, impurities such as the coke blocks and the like are not prone to entering the outer side of the deslagging cylinder, and the fixing structure is prevented from being damaged by high temperature; the connecting sleeve located on the outer side of the mounting disc is flexibly connected through the fixing hoop, mounting is stable, the deslagging effect is good, and a certain anti-blocking effect is achieved.

The application discloses a kind of three-proofing devices for coal mine, including outer tube, inner tube, slag discharge cylinder;Outer tube is connected with inner tube by positioning mechanism, and the outer end of slag discharge cylinder is provided with drill pipe sealing mechanism, and the peripheral portion close to the outer end of slag discharge cylinder is provided with gas extraction interface, coal slag discharge interface.The three-proofing device of the application can be installed on the drilling hole opening wall of gas extraction main pipeline construction, which can prevent fire, prevent back gas and prevent explosion;Among them, the drill pipe sealing assembly has the effect of blocking gas, so that it cannot enter the tunnel, which avoids the condition that gas leakage in drilling operation leads to the threat to the life safety of construction personnel, improves the safety of coal mining operation, and has perfect functionality, and has fixing and sealing effect simultaneously, effectively prevents gas leakage;And it is convenient to install, simple to disassemble, widely applicable, with large stroke range of expansion mechanism, can be applied to various aperture, can prevent spouting and outburst, further improves the use effect of the application.

The utility model relates to the technical field of coal cinder treatment, in particular to a high-pressure coal cinder flushing blanking device for a coal cleaning plant, which comprises a blanking hopper, a support plate, a water tank, a booster pump and a flushing component. And the water tank is arranged at the bottom of the supporting plate, and the booster pump is arranged at the top of the supporting plate. The flushing assembly is composed of a supporting frame, a motor, a rotating plate, a connecting rod and an L-shaped frame, a nozzle is installed on the L-shaped frame and communicates with a booster pump through a spraying pipe, and the input end of the booster pump communicates with the water tank. According to the device, through cooperation of the booster pump and the flushing assembly, automatic high-pressure flushing of coal cinder crust on the side wall of the blanking hopper is achieved, the labor intensity and potential safety hazards of manual cleaning are reduced, meanwhile, the flushing angle and the waste water flow guide design are optimized, and the cleaning range, the flushing quality and the system stability are improved.