582 results about "Coal briquette" patented technology

The invention relates to the technical field of coal gangue classification and recognition, in particular to a coal gangue recognition method and system based on hyperspectral imaging and laser ranging, and the method comprises the steps: mapping hyperspectral image data to a three-dimensional point cloud of laser ranging data, and obtaining a mapping result; adopting the trained network model to extract multi-scale spatial features and multi-scale spectral features from the mapping result; the extracted features are fused, and then candidate target areas are generated based on the fused features; classifying the candidate target areas to obtain a classification result of the coal gangue; constructing a three-dimensional model of the coal surface based on laser ranging data; generating a triangular mesh model for the three-dimensional model of the coal surface; smoothing the triangular mesh model to obtain a reconstructed model; determining the granularity of the coal briquettes based on the reconstruction model; and based on the spectral data, identifying the lithofacies characteristics of the coal, and distinguishing different types of coal. And the coal gangue sorting accuracy and efficiency are improved.

The invention discloses a bridge type transfer conveyor for coal mining, relates to the technical field of conveying, and aims to solve the technical problem that the capacity of pretreating coal briquettes before conveying is weak in the limited space of a thin coal seam. The bridge type transfer conveyor comprises a bridge type transfer conveyor main body, and a coal feeding mechanism is arranged at the lower end of the bridge type transfer conveyor main body; a coal discharging port is formed in the high end of the bridge type transfer conveyor body, the coal feeding mechanism comprises two fixed side plates, the two fixed side plates are of a symmetrical structure and are connected through a screening plate and a feeding plate, the screening plate is arranged above the feeding plate, the side wall of the screening plate is connected with an impurity leading-out plate, and the impurity leading-out plate is connected with a coal discharging port. A feeding frame is arranged at the top of the fixed side plate, a coal briquette crushing assembly is arranged between the screening plate and the feeding plate, and an impurity removing assembly is arranged on the side wall of the coal briquette crushing assembly. The coal crushing and impurity removing device has the advantages that coal can be subjected to pre-crushing and impurity removing operation, and the coal pretreatment capacity is improved.

The invention belongs to the technical field of conveying equipment, and particularly relates to safety auxiliary coal conveying equipment for coal mine transportation. Comprising a rack, and a crushing assembly and a smoothing assembly are arranged at the upper end of the rack; the crushing assembly comprises a connecting cylinder, a screen, a guide table, a crushing table and the like, the connecting cylinder and the screen shovel up coal briquettes on the conveying belt, large coal briquettes are screened out, the large coal briquettes are conveyed to the crushing table to be crushed through the guide table, and the crushed coal briquettes fall onto the conveying belt; the smoothing assembly comprises smoothing rollers capable of rotating and revolving, and coal briquettes accumulated on the two sides are pushed into the middle of the conveying belt through the smoothing rollers. And the coal briquettes conveyed by the conveying belt are uniform and are not easy to fall off from the conveying belt, so that the safety and the conveying efficiency of the coal briquettes during conveying are improved.

The invention discloses a system and device for real-time on-line detection of separation coarse particles of a coal preparation plant, and the system comprises a rack, and also comprises a flattening assembly used for avoiding mutual stacking of coal briquettes; the anti-stacking assembly is used for layering the coal briquettes; the flattening assembly comprises a lead screw, a sliding sleeve, a connecting plate, a guide rod and a sliding block, the lead screw is rotationally connected with the rack, the sliding sleeve is in threaded connection with the lead screw, the sliding sleeve is in sliding connection with the rack, the connecting plate is fixedly connected with the sliding sleeve, the guide rod is fixedly connected with the connecting plate, the sliding block is in sliding connection with the guide rod, and the sliding block is in sliding connection with the guide rod. A pressing cylinder is rotationally connected to the sliding block and used for rolling on coal briquettes, and the screen is connected with a transmission assembly; according to the invention, the precision of rough recognition can be effectively improved.

A coal mill feeding device comprises: a screening assembly comprising a box, a feeding port formed at the top of the box, a discharge port formed at the bottom of the box, a screen plate and a receiving plate both arranged inside the box, and a plurality of screen holes provided in the screen plate; a drive assembly; and a feeding assembly. To ensure the uniformity of pulverized coal, the screening assembly is provided to perform coarse and fine screening on mixed coal briquettes, which enables batch feeding of the coal briquettes into the coal mill for grinding, thereby facilitating subsequent control of the grinding roller pressure and grinding duration based on the specific conditions of the coal briquettes. When an electric motor is activated, the screen plate performs screening while a barrier plate is lifted to effectively prevent the coal briquettes from splashing. After the screening is completed, a first air cylinder can be activated to drive a first push shovel to push the coarse coal for grinding, and at this point, the barrier plate is lowered to facilitate a material guide plate conveying the coal briquettes. After the grinding of the coarse coal is completed, a second air cylinder is activated to drive a second push shovel to push the fine coal for grinding.

Provided is a method which is for producing a coal cake and by which the strength of a coal cake can be improved without using a caking binder. A method for producing a coal cake according to the present invention is a method for producing a coal cake in a stamp charge-type coke oven, and is characterized in that fibers having a length of 1.0-200 mm and a length-to-diameter ratio of at least 10 are added to and mixed with a raw material of a powdery coal cake, and the obtained fiber-mixed raw material is stamped to obtain a coal cake.

The invention discloses a test device, a test system and a test method for simulating lump coal thermal stripping under a coal underground gasification condition. The test device comprises a heating furnace, a coal briquette clamping tool, a suspension tool and an online thermobalance. A furnace body of the heating furnace is provided with a heating cavity, a gasifying agent inlet and a synthesis gas outlet; the coal briquette clamping tool is arranged in the heating cavity and used for clamping a coal briquette, and only part of the bottom surface or the whole bottom surface of the coal briquette is exposed out of the coal briquette clamping tool; the suspension tool penetrates through the furnace body, and the bottom end of the suspension tool extends into the heating cavity and is connected with the coal briquette clamping tool; the on-line thermobalance is arranged outside the heating furnace and is connected with the top end of the suspension tool; the heating furnace is provided with a heating element, and the heating element is arranged below the coal briquette clamping tool; the top wall and the side walls of the coal briquette clamping tool are made of thermal insulation materials, so that only the bottom face of the coal briquette can be heated. According to the invention, UCG reaction conditions can be simulated, and thermal stripping parameters and weight loss rate of coal briquettes can be measured on line.

The utility model belongs to the technical field of hydraulic supports, and particularly relates to a hydraulic support bottom lifting device which comprises a rear installation plate, a push rod hinge seat is fixedly connected to one side wall of the rear installation plate, and an electric push rod is hinged to the push rod hinge seat. The two sets of side mounting plates are arranged, the two sets of side mounting plates are arranged on the side, located on the rear mounting plate, of the push rod hinge seat, and a top cover plate is arranged above the side mounting plates; and one side wall of the supporting frame is fixedly connected with the telescopic end of the electric push rod. By arranging the top cover plate, the bottom lifting device can be protected conveniently, the working safety is improved, and mineral coal briquettes are prevented from being clamped on the working bottom lifting device; longitudinal space can be saved conveniently, the hydraulic support is prevented from colliding with the bottom lifting device to be damaged during working, and the safety of the device is improved. Reset assistance can be conveniently carried out on the supporting frame when the electric push rod shrinks and resets, transmission continuity is improved, clamping is avoided, and the device is diversified in function.

The invention relates to the technical field of raw coal impurity removal, and particularly provides a raw coal impurity removal anti-blocking device. By arranging the feeding primary screening mechanism, coal powder is filtered out through a flow guide plate, and by arranging a first-stage material uniformizing device and a second-stage material uniformizing device, coal can be evenly dispersed, and the phenomenon that the device is blocked due to accumulation of the coal is prevented; the belt type iron removal mechanism is additionally arranged, metal impurities in raw coal are adsorbed through the magnetism of an electromagnet, and the discharging quality of coal is guaranteed; the grate type screening unit is additionally arranged, so that coal briquettes with small sizes can smoothly fall into a stock bin below through gaps between swing rods, and impurities such as stones with large sizes are temporarily intercepted on the swing rods and wait for follow-up rotary throwing treatment of the rotary roller claw type screening unit; and a rotating roller claw type screening unit is arranged, a first gear motor and a cam divider are used for providing power, a claw is intermittently driven to rotate, and large sundries can be thrown into a sundry recycling box.

The utility model relates to the field of coal briquette crushing, in particular to a coal briquette crushing device for coal washing, which comprises a feeding pipe, a crushing roller and a filter screen, the feeding pipe is arranged at the upper end of a device shell, the crushing roller is arranged in the device shell, the filter screen is obliquely arranged below the crushing roller, and connecting blocks are arranged on two sides of the filter screen. A recycling box is arranged on the left side of the device shell, a rotating shaft is arranged below the filter screen, smashing blades are arranged at the upper end and the lower end of the rotating shaft, and a movable sleeve is fixedly connected with the inner wall of the device shell. The multi-stage crushing device has the beneficial effects that coal briquettes can be subjected to multi-stage crushing, so that the crushing effect of materials is improved, and the coal quality requirements for different purposes are met; coal briquettes with different sizes can be screened, coal products with different granularities are separated, and the utilization rate of resources is increased; and chippings and dust generated during crushing of coal briquettes can be recycled, so that environmental pollution is reduced, and the ecological environment is protected.

The invention relates to the technical field of tamping machine detection, in particular to a method, device and equipment for detecting the height of a coal cake on a tamping machine and a medium. Analyzing the operation vibration data to generate a vibration compensation model; correcting the height of the coal cake based on the vibration compensation model; and outputting the corrected coal cake height measurement value. The method has the effect of improving the accuracy of coal cake detection of the tamping machine.

The power plant coal conveying device capable of preventing coal falling comprises a belt conveyor which is arranged obliquely, a tail end intercepting assembly is arranged at the low end of the belt conveyor, and side wing shielding assemblies are arranged on the two sides of the belt conveyor in the conveying direction; the tail end intercepting assembly comprises a tail frame, and the outer side wall of the tail frame is fixedly connected with a height adjusting mechanism. The side wing shielding assembly comprises multiple sets of vertical rods arranged on the rack on the two sides of the belt conveyor, the multiple sets of vertical rods on the same side are arranged in parallel, the top ends of the multiple sets of vertical rods on the same side are hinged to the same baffle, and a telescopic power piece hinged to the baffle is hinged to the belt conveyor. The tail end intercepting assembly is arranged, the tail frame is used for intercepting coal briquettes falling downwards, the height adjusting mechanism can be used for adjusting the height of the tail frame according to the size of the falling coal and the actual working condition, meanwhile, baffles of the side wing shielding assemblies are controlled to shield the falling coal on the side faces, and the coal briquettes are prevented from falling from the side edges.

The utility model discloses a comprehensive coal digging device which comprises a fixing plate, the upper surface of the fixing plate is fixedly connected with two right-angle plates, the bottom face of each right-angle plate is fixedly connected with a clamping block with a hole, and the upper surfaces of the two right-angle plates are jointly and fixedly connected with a lifting handle. According to the device, through the cooperation of the mounting hole, the right-angle plate and the clamping block with the hole, the device can be conveniently mounted at the fully-mechanized coal winning machine, the purpose of collecting coal briquettes falling off when the fully-mechanized coal winning machine works is achieved, through the cooperation of the arc-shaped baffle and the supporting plate, the effect of protecting the spiral conveying shaft is achieved, and the service life of the spiral conveying shaft is prolonged. According to the coal briquette conveying device, the purpose of protecting the spiral conveying shaft and the spiral blades is achieved through cooperation of a reinforcing plate and an arc-shaped baffle, the problem that falling coal briquettes damage the spiral conveying shaft and the spiral blades is avoided, through cooperation of a driving motor, the spiral conveying shaft and the spiral blades, the coal briquettes are conveniently conveyed, and the using effect of the device is improved.

The invention provides a split-flow double-conveying-belt conveyor integrated with an ultrasonic crushing and water spraying dust removal system, and particularly relates to the technical field of conveyor equipment. The conveyor comprises an upper conveying mechanism, a lower conveying mechanism, a base plate and side plates located on the left side and the right side of the base plate. The upper conveying mechanism and the lower conveying mechanism are located between the two side plates and arranged in a staggered mode. Ultrasonic crushing devices and a plurality of spraying heads arranged at equal intervals are arranged at the positions, close to the front ends of the upper conveying mechanism and the lower conveying mechanism, of the inner side walls of the two side plates. The plurality of spray headers are positioned above the ultrasonic crushing device and close to the front end of the upper transmission mechanism; and an electric control box and an equipment box are arranged on the outer side wall of one side plate. The problem that when a traditional conveyor transports large coal briquettes, the large coal briquettes are prone to being accumulated and blocked, and equipment abrasion is caused is solved, the transportation efficiency is improved, meanwhile, the influence of dust on the working environment is improved, and then the body health of workers is ensured.

The invention relates to the technical field of video monitoring, in particular to a real-time video monitoring anomaly detection method and system based on deep learning. The real-time video monitoring anomaly detection method based on deep learning comprises the steps of storage database establishment, information acquisition, coal briquette transportation monitoring model establishment, anomaly judgment, conveyor belt conveying speed calculation, primary conveyor belt anomaly judgment, secondary conveyor belt anomaly judgment, conveying anomaly output, conveying normal output, cache cleaning and the like. The real-time video monitoring anomaly detection system comprises a camera, an acquisition module, a storage module, a judgment module I, a judgment module II, a judgment module III, a calculation module, a judgment module IV, a judgment module V, an output module I, an output module II and a cleaning module. And the accuracy of monitoring the conveying abnormity of the coal briquettes is further improved.

The invention relates to the technical field of coal conveying, and discloses a coal conveying device for a thermal power plant, which comprises a frame body, a conveying belt is arranged between the inner walls of the two sides of the frame body, a plurality of supporting frames are fixed on the top of the frame body through bolts, and a liquid separation pipe is rotatably connected between the inner walls of the two sides of each supporting frame. A plurality of evenly-distributed atomizing nozzles are fixed to the bottom of the liquid distribution pipe through threads, a connecting pipe is fixed to the outer wall of one side of each supporting frame through a bolt and communicates with one end of the liquid distribution pipe, and a coal briquette position adjusting mechanism is arranged between the inner walls of the two sides of the bottom ends of the multiple supporting frames. According to the coal briquette smashing device, the liquid distribution pipe and the atomization nozzles are arranged, the atomization nozzles spray water, so that coal briquettes are wetted, the surfaces of the coal briquettes are wetted, the purpose of reducing dust is achieved, the coal briquettes are not prone to combustion due to the fact that the coal briquettes are wetted, the temperature rise of the coal briquettes is slow when the coal briquettes are smashed, and the safety of coal briquette smashing is improved.

The utility model belongs to the technical field of devices for removing or transporting excavated materials or gangues, and particularly provides a reversed loader for a coal mine and a material receiving system of the reversed loader. The material collecting system comprises a rack, a feeding port and a conveying mechanism are arranged on the rack, a coarse crushing mechanism and a fine crushing mechanism which are arranged in the feeding direction of the conveying mechanism are arranged on the rack, and the crushing particle size of the coarse crushing mechanism is larger than that of the fine crushing mechanism. The reversed loader for the coal mine comprises the material receiving system. The coarse crushing mechanism can pre-crush large coal briquettes and gangues, small coal briquettes and gangues can normally pass through the coarse crushing mechanism in the pre-crushing process, and the fine crushing mechanism only needs to crush the coal briquettes and gangues which are crushed or directly pass through the coarse crushing mechanism. The coarse crushing mechanism and the fine crushing mechanism do not need high configuration, and the overall crushing efficiency is also improved.

The invention relates to the technical field of dust suppression, in particular to a coal conveying belt spraying dust suppression device which comprises a supporting component, a support, a movable assembly arranged on the support, a conveying assembly arranged on the movable assembly and an extrusion assembly arranged on the support. The dust suppression component comprises a spraying assembly arranged on the support and a rotating assembly arranged on the spraying assembly, when coal briquettes fall onto a movable assembly, the movable assembly senses falling coal and drives the dust suppression assembly to spray water mist after coal falling, the dust suppression assembly can enable the sprayed water mist to be different in distance and length when the water mist is sprayed, and the rotating assembly is arranged on the spraying assembly. Therefore, the dust suppression range is large, diffusion of dust is suppressed to the maximum extent, and the device also avoids slipping of accumulated water on a conveying piece due to excessive spraying.

The invention discloses a large-span coal shed and coal unloading ditch coal shed steel connection structure and an installation method thereof, and relates to the technical field of power plant coal yard dry coal shed renovation, the large-span coal shed and coal unloading ditch coal shed steel connection structure comprises a main coal shed including a first-stage coal shed and a second-stage coal shed, and shed surfaces of the first-stage coal shed and the second-stage coal shed are in symmetrical arc shapes; the end parts of the first-stage coal shed and the second-stage coal shed are connected with each other, and the shed surfaces coincide; the side coal shed is installed on one side of the second-stage coal shed and comprises a side shed roof, a first supporting column and a second supporting column, and the first supporting column and the second supporting column are connected to the two sides of the side shed roof; and one side of the side shed roof is obliquely fixed on the outer shed surface of the second-stage coal shed. The problem that coal-containing sewage is easily generated if coal briquettes are scattered in the coal conveying process in rainy days due to the fact that gaps exist between existing coal sheds is solved, and the coal shed has high loading capacity and can resist natural disasters such as snow storm, strong wind or earthquakes.

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 invention relates to the technical field of conveyors, in particular to a coal mine scraper conveyor which comprises a rack, a driving part is arranged on one side of the rack, a driving roller and a driven roller are arranged on the rack, the driving roller is arranged at the output end of the driving part, a conveying chain is arranged on the driving roller and the driven roller, and a scraper mechanism is arranged on the conveying chain. The coal conveying device has the beneficial effects that by arranging the scraper mechanism, when there are many coal briquettes on one side of the contact plate, the coal briquettes on the side with many coal briquettes are pushed to the side with few coal briquettes, it is ensured that the coal briquettes are evenly distributed on the side, away from the middle plate, of the contact plate, the conveying chains on the two sides of the connecting plate are made to be identical in stress, and the synchronization degree of the conveying chains on the two sides of the connecting plate is ensured; the situation that the conveying chains are broken due to the fact that meshing between the conveying chains and the driving roller and meshing between the conveying chains and the driven roller are staggered due to deviation of the synchronism of the conveying chains on the two sides of the connecting plate is avoided, and normal operation of the conveyor is guaranteed.

The invention provides a pulverized coal forming method based on multistage pressure regulation and a parameter optimization system thereof, and relates to the technical field of pulverized coal forming. S2, a multi-stage pressure loading forming stage; s3, a forming parameter dynamic optimization stage; and S4, a cooling shaping and quality detection stage, and the invention provides a pulverized coal forming parameter optimization system comprising a multi-stage hydraulic forming mold, an online detection device, a dynamic control module and a quality closed-loop feedback unit, according to the pulverized coal forming method and the parameter optimization system thereof, a multi-stage pressure loading mechanism is introduced in the forming process; and process parameters are dynamically optimized by combining the characteristics of the raw materials, so that the strength of the pulverized coal molded block is improved, the energy consumption is reduced, the service life of a mold is prolonged, the adaptability of a molding system to different coal qualities is improved, and the requirements of industrial continuous production are met.

The invention belongs to the technical field of mining conveyors, and particularly relates to a mining scraper conveyor with a function of preventing wet and sticky materials, which comprises material pushing plates, chains are arranged on two sides of each material pushing plate, and two adjacent material pushing plates are matched with two chains to define a middle material storage area; a plurality of rows of push rods are arranged on the outer side face of the chain in the conveying direction, the distances between every two adjacent rows of push rods are the same, and the push rods divide the area between every two adjacent material pushing plates into a plurality of lateral material storage areas; the lateral hopper is located over the lateral material storage area and used for guiding first coal briquettes with the approximate length, width and thickness into the lateral material storage area, and the maximum length of the first coal briquettes is smaller than the distance between every two adjacent push rods; the middle hopper is located over the middle material storage area and can guide pulverized coal and second coal briquettes into the middle material storage area. By arranging conveyed coal materials, wet and sticky materials in the conveyor are automatically removed in the coal material conveying process.

The utility model belongs to the technical field of furnace slag treatment, particularly relates to an AI identification automatic dust removal robot for a furnace slag treatment smart factory, and aims to solve the problems that furnace slag in a furnace is difficult to completely move out in the process of moving the furnace slag out of the furnace at present, and the furnace slag in the furnace is accumulated during long-time use, so that the furnace slag in the furnace cannot be completely removed. In order to solve the problems that in the prior art, ventilation in a stove is not smooth enough, and normal combustion of coal briquettes is affected, according to the scheme, the stove comprises an electric crawler-type base, a mounting box is welded to the top of the electric crawler-type base, a door plate is hinged to an opening in one side of the mounting box, and a vacuum pump is fixedly mounted on one side of the top of the electric crawler-type base through bolts; according to the furnace slag collecting device, the suction pipe can be transferred into the furnace, furnace slag stored in the furnace can be sucked out and collected into the net cage in a centralized mode, and therefore the furnace slag contained in the furnace can be conveniently and rapidly collected in the centralized mode in the actual use process, and the furnace can work stably and continuously.

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 utility model discloses a device for realizing automatic sample storage of a coking solid coal cake. The device comprises a sample storage device and a sampling device, the sample storage device comprises a sample storage turntable; a plurality of sample storage tanks with upward openings are arranged on the sample storage turntable in a circumferential array, and the sample storage tanks synchronously rotate along with the sample storage turntable; the sampling device comprises a rotating arm, a lifting device and a sampler; one end of the rotating arm is connected with a vertical rotating shaft, and the other end is connected with a sampler through a lifting device; when the sampler synchronously rotates to a certain position along with the vertical rotating shaft, the sampler reaches a discharging position, and on the basis that the sampler is located at the discharging position, a plurality of sample storage tanks with upward openings reach the position under the sampler one by one in the process that the sample storage turntable rotates around the axis; and the tail end of the rotating arm is in linkage connection with the sample storage turntable through a linkage structure, so that the sampled coal cake can be continuously sampled, and different samples can be accurately and completely separated and stored.

The invention relates to the field of open-pit coal mine mining, in particular to an open-pit coal mine full-continuous coal mining layered mining system which comprises an excavating unit, a coal mining unit, a coal mining unit, a coal mining unit, a coal mining unit, a coal mining unit and a monitoring unit, and the excavating unit is used for carrying out continuous layered excavating operation on a coal seam of an open-pit coal mine; the crushing unit is used for screening and crushing excavated coal briquettes and ores and comprises a mounting frame, a shell is mounted on the mounting frame, a filtering cavity, a crushing cavity and a deposition cavity are sequentially formed in the shell from top to bottom, a feeding port and a discharging port are formed in the side walls of the two sides of the filtering cavity respectively, and a power assembly is mounted at the bottom of the deposition cavity; a crushing assembly is mounted in the crushing cavity, and the power assembly is used for providing driving force for the crushing assembly; the system further comprises a transfer unit, a transportation unit and a control unit used for monitoring the operation state of each unit. A plurality of functional units such as excavating, screening, crushing, transferring, transporting and intelligent monitoring are integrated, and an efficient, automatic and intelligent mining system is formed.

The invention relates to a double-coal-blending tamping coking method for a heat recovery coke oven, which is characterized in that a coal cake of the heat recovery coke oven is in a tamping form, a coal charging and coke pushing car works on a coke oven machine side track, and blended bulk coal falls into a coal box consisting of a ground coal wall, a front baffle plate, an on-car coal charging bottom plate, a rear baffle plate and the like through a coal distribution device of a hydraulic tamping station; the bulk coal is tamped into a coal cake by a coal pressing device of the hydraulic tamping station, and the coal cake is dragged back to a coal charging car by a coal charging bottom plate; and the coke is pushed into a quenching car from the carbonization chamber by using a coke pushing rod, a coal cake is fed into the carbonization chamber by using a coal loading bottom plate, and the furnace door is closed after the coal loading bottom plate is drawn out. The invention ensures the stability of the quality of the produced coke, realizes that the performance of the coke product meets the requirements of a blast furnace, reduces the use amount of high-cost blended coal, avoids resource waste, and reduces the cost and increases the efficiency.

The utility model relates to the technical field of crushing mechanisms of coal mining machines, in particular to a crushing mechanism of an impact shovel coal mining machine, which comprises a support arm, the support arm comprises a support part, one end of the support part is rotatably connected with a crushing roller, one end of the support part is rotatably provided with a protective plate, the top of the crushing roller is provided with a crushing cover, and the protective plate is arranged on the top of the crushing cover. The crushing cover is fixedly connected with the supporting part, and an intercepting mechanism is arranged at one end of the crushing cover. According to the utility model, the plurality of sleeves I are arranged on the rear side of the crushing roller, the sleeves II are arranged in the sleeves I in a sliding manner, the insertion rods are arranged in the sleeves II in a sliding manner, and the insertion rods, the sleeves I and the sleeves II form an interception rod which is arranged behind the crushing roller, so that when large-size coal briquettes are conveyed to the position of the interception rod along with the conveyor, the large-size coal briquettes can be intercepted; and the intercepting rod prevents large-size coal briquettes from passing through the intercepting rod, so that the large-size coal briquettes can be fully crushed, and the phenomenon that the conveyor conveys the coal briquettes which are not fully crushed to the bottom of the coal mining machine to cause blockage is prevented.

The utility model discloses a chain feeder for coal dressing, which relates to the field of coal dressing, and comprises a machine body, two side plates are fixedly connected to the top of the machine body, a feeding mechanism is arranged between the side plates, the feeding mechanism comprises a plurality of scraper chains, a plurality of transmission boxes are fixedly connected to the scraper chains, and the transmission boxes stretch across all the scraper chains in the left-right direction. And a plurality of shifting and crushing mechanisms are arranged on one side, facing the moving direction, of the transmission box. The device has the beneficial effects that a transmission box is driven to move through a scraper chain, a reciprocating mechanism is operated through a meshing mechanism, the reciprocating mechanism drives a material stirring box to reciprocate left and right, a rotating shaft reciprocates left and right to poke raw coal, and the raw coal is evenly distributed; the material crushing cutter can scatter caked coal briquettes, and raw coal can be distributed more uniformly, so that the raw coal can uniformly enter the jigger.