178 results about "Coal briquette" patented technology

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.

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 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 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 invention relates to a coal briquette and gangue global visual identification method and system based on multi-modal fusion, and the method comprises the following steps: a plurality of RGB-D cameras distributed above a conveyor belt carry out the collection of RGB images and point cloud images, the preprocessing of point cloud data, the making of a data set, and the synchronous reasoning of a training model for the training of a model, and a fusion result. And identifying the type and position information of the target to be identified, and realizing global target detection through an SORT tracking algorithm. According to the method, multi-depth-camera point cloud calibration splicing, point cloud background filtering and depth camera installation deviation correction are realized, the flow in the multi-depth-camera point cloud acquisition and preprocessing process is simplified, and the multi-depth-camera point cloud processing efficiency is improved.

The invention discloses a fully mechanized coal mining face scraper conveyor large coal online crushing method and system, and relates to the technical field of coal mining mechanical equipment.The method comprises the specific steps that a large coal recognition unit is arranged above a scraper conveyor, the unit is composed of a camera and a large coal recognition model, the camera is used for collecting images of coal briquettes conveyed by the scraper conveyor, collected image data are detected by the large coal recognition model, and the detected large coal is tracked, the YOLO-GR recognition algorithm provided by the invention improves the coal briquette image recognition precision, especially the recognition capability of the large coal, a target can be positioned more accurately, and the recognition accuracy of the coal briquettes is improved. The point cloud data obtained by the speckle structured light measurement technology is used for providing an accurate basis for the judgment of the crushing position, the reinforcement learning algorithm is adopted, the crushing coordinates are optimized, the optimal crushing coordinates are determined and the crushing operation is optimized in combination with the point cloud data of the large coal, and the intelligent decision-making mode enables the crushing operation to be more targeted and accurate.

The invention relates to the technical field of coal mine supports, and discloses a safety protection coal mine support which comprises a top coal caving hydraulic support body and a tail beam, the tail beam is hinged to one side of the top coal caving hydraulic support body, and a crushing groove is formed in one side of the tail beam; according to the top coal caving hydraulic support, by arranging the transmission mechanism, after a jack in the top coal caving hydraulic support body controls a tail beam to swing, a coal falling opening is formed in one side of the tail beam at the moment, top coal can fall from the coal falling opening, meanwhile, a motor is started, the motor drives a first bevel gear and a lead screw to rotate, and the lead screw rotates and rotates a transmission block at the same time; the transmission block reciprocates along the tracks of the sliding block and the sliding groove, the ejector pin reciprocates synchronously with the transmission block, when large coal briquettes pass through the coal falling opening, the ejector pin pierces into the large coal briquettes, the coal briquettes are broken and split into small coal briquettes, the coal falling opening is effectively prevented from being blocked by the large coal briquettes, and therefore the coal mining efficiency is improved.

The utility model discloses an anti-sticking coal cake tamping hammer, and relates to the technical field of coal cake tamping hammers, the anti-sticking coal cake tamping hammer comprises a hammer rod and a hammer head arranged at the lower end of the hammer rod, a limiting seat is arranged outside the hammer rod, a fixing frame is arranged on the outer surface of the limiting seat, a telescopic rod is arranged at the lower end of the fixing frame, and the telescopic rod is connected with the limiting seat. A knocking rod is rotatably connected to the front surface of the lower end of the telescopic rod, a knocking head is arranged on the outer surface of the lower end of the knocking rod, a shaft seat is arranged on the outer surface of the right side of the hammer rod, a tooth block is rotatably connected to the inner surface of the shaft seat, and a transmission mechanism is arranged on the surface of the knocking rod; the transmission mechanism comprises an abutting wheel fixedly connected to the outer surface of the left side of the knocking rod. Compared with an existing common coal cake tamping hammer, the anti-sticking coal cake tamping hammer has the advantages that the hammer rod and the hammer head can move up and down along with an external power device in the working process, in the hammering process, the hammer rod can be used for driving knocking through lifting of the hammer rod, and coal is effectively prevented from sticking to the surface of the hammer head.

The utility model belongs to the technical field of coal mine screening, and particularly relates to coal mine screening equipment for coal mining, which comprises a screen mesh for screening a coal mine and a support frame arranged below the screen mesh and used for supporting and fixing the screen mesh, the screen mesh comprises a fine screen part with smaller screen meshes and a coarse screen part with larger screen meshes, and clamping rings are symmetrically installed at the two ends of the screen cloth, rotating grooves matched with the clamping rings are formed in the supporting frame, when the screening device is used, the screen cloth is rotated by a proper angle along the rotating grooves, switching of the fine screening part and the coarse screening part is conveniently achieved, and therefore screening of coal briquettes with different particle sizes is conveniently achieved. By designing the screen comprising the fine screening part and the coarse screening part and being provided with the rotatable clamping ring and the rotating groove structure, the equipment can conveniently switch the screen part so as to meet the screening requirements of coal briquettes with different particle sizes, the tedious operation of replacing the whole screen is avoided, the downtime is shortened, and the production efficiency is improved.

The utility model provides crushing coal mining equipment, and relates to the technical field of coal mining equipment, the crushing coal mining equipment comprises a vehicle body, a machine arm is rotatably arranged at the top end of the vehicle body, an output rod of a hydraulic rod is rotatably connected with one side of the top end of the machine arm, a crushing device is arranged in a collecting shovel, the crushing device comprises a round roller, and the round roller is rotatably connected with the machine arm. The crushing device is arranged, the first motor is operated to drive the round roller to rotate, coal briquettes are conveyed to the round roller through the conveying belt, the conveying belt is used for conveying the coal briquettes to the round roller, the conveying belt is used for conveying the coal briquettes to the round roller, and the conveying belt is used for conveying the coal briquettes to the round roller. The tooth blocks on the outer surface of the circular ring are used for further crushing coal briquettes entering the round roller on the surface of the conveying belt, the coal briquettes with large sizes are crushed and separated as much as possible, the conveying belt moves outwards so that the coal briquettes in the collecting shovel can be conveyed outwards conveniently, and the efficiency of taking the coal briquettes out of the collecting shovel is improved; and the flexibility and the practicability of the coal mining equipment in use are improved.

A forked roller composite crusher includes a forked crusher, a double-toothed roller crusher, a coal cake detection component, and a controller. The inlet of the double-toothed roller crusher is located directly below the outlet of the forked crusher. The forked crusher includes a crusher shell and a steel fork assembly. The steel fork assembly is mounted on the crusher shell and includes two sets of crushing components. Each set of crushing components includes a support frame, a linear reciprocating drive mechanism, and steel fork heads. The two sets of support frames are arranged opposite each other inside the crusher shell. Each set of support frames moves linearly reciprocally under the drive of the corresponding linear reciprocating drive mechanism. Several steel fork heads are provided on each set of support frames. This composite crusher can effectively crush the coal cake discharged from the filter press, allowing subsequent processing of the coal cake to continue. Furthermore, the entire crushing process requires no manual intervention, greatly improving crushing safety.

The utility model relates to the technical field of coal mines, and discloses a novel multi-stage split type cylinder ore washer which comprises a cleaning cylinder shell arranged in an inclined mode, a screening cylinder shell is fixedly installed at the right end of the cleaning cylinder shell, a cleaning roller is rotationally connected into the cleaning cylinder shell, a plurality of spraying assemblies are fixedly installed at the bottom of a water distribution assembly, and a plurality of spraying assemblies are fixedly installed at the bottom of the cleaning cylinder shell. A plurality of annular spraying channels are reserved in the cleaning roller, and a screening assembly is fixedly installed at the right end of the cleaning roller. A water pump is added into a water storage tank through a water inlet pipe, then distributed into an annular pipe through a water distribution pipe and sprayed to the surfaces of coal briquettes through a spray head to clean the coal briquettes, so that sludge penetrates through filtering holes to be discharged into a cleaning barrel shell, and fine broken stones enter an annular spraying channel and then penetrate through a slag discharging groove to be discharged into the cleaning barrel shell; finally, the sludge and the sludge are discharged from the sludge discharge hopper; therefore, the sprayed water directly acts on the surface of the coal briquette, the impact force of the water flow on the surface of the coal briquette is guaranteed, and the cleaning effect is guaranteed.

The invention belongs to the technical field of coal mine electromechanical transportation, and particularly relates to a coal mine electromechanical transportation device with a coal briquette sliding prevention structure. The coal mine electromechanical transportation device comprises two sets of end supports, supporting legs are fixedly connected to the bottoms of the end supports, a transmission shaft is rotationally connected between the two end supports in each set, and a conveying belt is in transmission connection with the transmission shaft; after coal briquettes are guided into the conveying belt, the coal briquettes push the bottom side of a bent part formed by bending the conveying belt under the action of self gravity, so that the bent part deforms and extrudes the lower supporting roller, and when the lower supporting roller is extruded and shifted, the upper supporting roller installed at the top end of the rotating plate can be driven to rotate towards the inner side of the conveying belt and is matched with the bent part of the conveying belt to clamp the coal briquettes from the two sides; the coal briquette conveying device is simple in structure, stable conveying of coal briquettes is kept, and the problems that when the coal briquettes are vibrated in the conveying process, loose coal briquettes possibly shift due to vibration, the coal briquettes located on the top layer of the conveying belt collapse and slide down, the conveying efficiency is affected, and large potential safety hazards exist are solved as much as possible.

The invention discloses a coal gangue sorting device without adhesive tape transportation, and relates to the technical field of coal gangue sorting. The device comprises a sorting box used for sorting coal briquettes and gangue, and further comprises an impurity removal unit arranged in the sorting box and comprising a conveying assembly and a discharging assembly, and spiral conveying blades used for conveying the coal briquettes and the gangue are arranged in the conveying assembly; and the sorting unit is arranged in the sorting box and comprises a vibration assembly, a collection assembly and an adsorption assembly. The device has the advantages that lossless conveying of coal briquettes and gangue can be achieved by adopting a rotary conveying mode of the spiral conveying blades, disintegrating slag and dust in the coal briquettes and the gangue can be effectively removed in cooperation with screening and adsorption effects during conveying, and meanwhile efficient separation of the coal briquettes and the gangue can be achieved by utilizing mass difference and adopting a vibration separation mode; and secondary separation is conducted in an airflow blowing mode, part of gangue remaining in the coal briquettes obtained after primary separation is effectively removed, and the separation effect is better.

The utility model discloses an automatic control hydraulic material pushing device which comprises a machine head frame, a first motor is fixedly connected to the inner side of the machine head frame, a frame is fixedly connected to the inner side of the machine head frame, a second motor is fixedly connected to the inner side wall of the frame, and an output shaft of the second motor is fixedly connected with a driving gear. A bearing is fixedly connected to the top end of the frame, a threaded rod is fixedly connected to the interior of the bearing, a driven gear is fixedly connected to the outer surface of the threaded rod, a threaded block is in threaded connection to the outer surface of the threaded rod, and a scraping plate is fixedly connected to the top end of the threaded block. The water accumulation pool is arranged, the pipeline is installed at the top end of the adhesive tape, the adhesive tape is washed through the spray head, coal briquettes are prevented from being accumulated on the surface of the adhesive tape, the driving gear and the driven gear are arranged, the threaded rod is driven to rotate, the threaded block is driven to move, the scraper is driven to move up and down, the scraper makes contact with the adhesive tape, accumulated coal on the surface of the adhesive tape is scraped off, and the coal falls off along the slope.

The invention relates to the technical field of coal mine safety, and discloses a follow-up safety device integrated on a hydraulic support, which comprises a hydraulic support and a front plate rotationally connected to the hydraulic support, and further comprises a coordination mechanism, and the coordination mechanism comprises a first carrier plate fixedly connected to the surface of the front plate; a pair of fixedly connected incomplete racks and a flow guide mechanism are oppositely arranged on the surface of the first carrying plate, the flow guide mechanism comprises a second carrying plate fixedly connected into the hydraulic support, and two water passing pipes with opposite inclination directions are arranged, so that when the coal mining machine does not reach a specific area, one group of water passing pipes are started and incline towards the gravity center direction of a coal wall, and the other group of water passing pipes incline towards the gravity center direction of the coal wall; a high-concentration halogen salt stopping agent is intensively jetted, a high-concentration gas leakage crack area which is expected to be generated when a coal wall is cut is treated, advanced treatment and source inhibition are achieved, and when a coal mining machine cuts and passes through the area, the coal briquettes falling onto a conveying belt are inhibited and attached in cooperation with the withdrawing action of a front plate of a hydraulic support and the angle adjustment of a current water passing pipe.

The impurity removal device comprises an impurity removal device body arranged between two raw coal belt conveyors, the impurity removal device body comprises an impurity removal box with an opening in the upper portion of the right side, and the bottom of the impurity removal box is fixedly connected with four supporting legs in a rectangular shape. And a feeding hole is formed in the inner wall of the left side of the impurity removal box. By arranging a series of structures, sundries in coal briquettes can be conveniently hooked and separated during conveying of the coal briquettes, the hooked sundries can be conveniently obliquely and outwards vibrated, guided, discharged and collected, crushed slag and silt can be integrally and automatically subjected to hard vibration filtering and screening, the impurity removal effect is improved, the sundries do not need to be taken out of the machine by personnel, and the labor intensity is reduced. And in addition, the modes of hooking and cleaning, vibration guiding and discharging and hard vibration filtering and screening are integrally achieved through a single drive, multifunctional independent driving equipment is not needed, and the energy-saving effect is high.

The utility model discloses a coal quality detection device and relates to the technical field of coal quality detection. Comprising a fixing base, a supporting base is arranged on the first plane of the fixing base, one side of the supporting base is open, and the first plane is the contact face of the fixing base and the supporting base; the testing mechanism is arranged in the fixing seat and used for carrying out sinking and floating detection on the coal briquettes, the testing mechanism comprises a cleaning part, a filtering part and a control part, the cleaning part is arranged on the outer side of the supporting seat and used for storing the heavy liquid, the filtering part is arranged in the cleaning part and used for containing the coal briquettes, and the control part is arranged in the fixing seat. Through the arrangement of the cleaning piece and the control piece, the heavy liquid storage barrel, the supporting pipe, the through hole, the rotating disc, the connecting rod, the connecting disc and the transmission shaft are matched to drive the fixed barrel and coal in the fixed barrel to swing, and the situation that a tester manually swings the net bottom barrel back and forth to rotate is avoided; therefore, the labor intensity of testers in the testing process is reduced.

The present application relates to the technical field of coal briquette crushing, and discloses a screening device for coal briquette conveying, which comprises a box body provided with an inlet and an outlet, and a screening mechanism arranged in the box body; the screening mechanism comprises a first screening plate, a collecting box with an open top, and a plurality of crushing assemblies arranged along the length direction of the first screening plate; the first screening plate is arranged obliquely and fixed to the box body; the collecting box is fixed to the box body and located at one end of the first screening plate close to the bottom of the box body; each crushing assembly comprises a moving block, a linkage block, a plurality of conical blocks, and a driving part for driving the moving block to make vertical reciprocating motion; the moving block is slidably connected to the box body; the linkage block is fixed to the moving block; each conical block is fixed to the linkage block, and the first screening plate is located on the motion track of the conical blocks; the moving directions of adjacent two moving blocks are opposite. The screening device can solve the problem that the existing crushing device cannot clean and collect the impurities remaining on the screen.

The invention discloses a full-section rotary type automatic raw coal sampling machine which is characterized in that a sampling mechanism extends to a position below an output position of a conveyor belt I, and a buffer plate is in rotary contact with a damping device; the collecting mechanism is assembled on the side face of the damping mechanism, the sampling mechanism is rotationally connected with the collecting mechanism, an auxiliary overturning mechanism is arranged between the sampling mechanism and the collecting mechanism, and the auxiliary overturning mechanism can assist the sampling mechanism to rotate on the side, located on the collecting mechanism, of the sampling mechanism; the collecting device comprises a collecting mechanism, conveying mechanisms fixed to the two sides of the collecting mechanism and sliding positioning mechanisms fixed to the two sides of the collecting mechanism, and the problems that at present, due to the fact that coal briquettes have certain weight, the coal briquettes still need to be thrown to the discharging position after cutting off coal and receiving the coal, and the service life of material taking equipment is easily shortened under impact of long-term sampling; and the coal briquettes are easy to crack under impact, so that the raw coal is difficult to accurately sample according to the size of the raw coal.

The utility model relates to the technical field of medium-speed coal mills, in particular to a scraper blade in an air duct of a medium-speed coal mill, which comprises a base and further comprises a mill body arranged at the top of the base and used for grinding coal briquettes, connecting plates are arranged on the front side and the rear side of the surface of the mill body, mounting holes are formed in the surfaces of the connecting plates, and the connecting plates are arranged in the mounting holes. A mounting plate is arranged on one side of the connecting plate; through cooperation of a connecting plate, a mounting plate and a second bolt, a worker can conveniently maintain and dismount the scraper body in the later period, the use strength and toughness of the scraper body can be improved through reinforcing ribs, the wear-resisting plate can be located in an inner cavity of the positioning shell through the wear-resisting plate, the wear-resisting plate plays a role in preventing materials from scouring the scraper body, and the service life of the scraper body is prolonged. And through cooperation of a first bolt, a locking gasket and a gear ring, the situation that the scraper body is affected by equipment operation to cause vibration, and consequently the abrasion-resistant plate is prone to loosening can be avoided.

The utility model belongs to the technical field of coal mine impurity removing equipment, and particularly discloses a raw coal impurity removing and screening mechanism which mainly comprises a base, a grate type screening unit and a rotary roller claw type screening unit. According to the utility model, the grate type screening unit is arranged, so that coal briquettes with smaller volumes can smoothly fall into the stock bin below through gaps between the swing rods, and impurities with larger volumes are temporarily intercepted on the swing rods to wait for subsequent rotary throwing treatment by the rotary roller claw type screening unit; meanwhile, the oil cylinder is arranged to drive the swing rod to swing by a certain amplitude, coal briquettes can be prevented from being clamped in a gap of the swing rod, and favorable conditions can be provided for the subsequent rotary throwing process; the screening mechanism is further provided with a rotating roller claw type screening unit, a gear motor and a cam divider are used for providing power, a claw is driven to rotate intermittently, and large sundries intercepted on a swing rod can be thrown into a recycling box arranged at the other end of the base in a rotating mode to wait for follow-up treatment.

The invention discloses a numerical simulation-based top coal briquette migration path determination method, which comprises the following steps of: collecting basic information of a fully mechanized caving face, including coal seam and rock stratum thickness, mechanical parameters, particle size and the like; then, building a coal caving test model by using particle flow software PFC and calibrating parameters; marking particles are selected to record the positions of the marking particles in the initial and normal coal caving stages, and a top coal transporting path is obtained; and finally, the excessive coal caving degree of the coal caving support is adjusted based on the path, and a coal caving process optimization scheme capable of improving the top coal recovery rate is provided. The method can accurately determine the top coal transportation path, overcomes the defects of a traditional method, provides support for improving the top coal recovery rate, and facilitates efficient and safe production of a fully mechanized caving face.

The utility model discloses a protective sealing device for pulverized coal production, which comprises a flour mill body, a discharge pipe and a machine body input pipe, the discharge pipe is mounted at the bottom of the flour mill body, the machine body input pipe is arranged at the top of the flour mill body, a sealed feeding device is mounted at the top of the machine body input pipe, and the sealed feeding device comprises a horizontal conveying pipe. A discharging square pipe is welded to the bottom of the material conveying pipe and connected with the machine body input pipe, a feeding square pipe is welded to the top of the material conveying pipe, the discharging square pipe and the feeding square pipe are not located on the same vertical line, a feeding hopper is welded to the top of the feeding square pipe, a sealed material pushing device is installed in the material conveying pipe, an air cylinder is fixedly installed at the right end of the material conveying pipe, and an output shaft is fixed to the right end of the sealed material pushing device. A vent hole is formed in the left end of the conveying pipe. Blanking of coal briquettes can be controlled without manual work, one position of the blanking square pipe and one position of the feeding square pipe are kept to be communicated with the interior of the conveying pipe, the other position of the blanking square pipe and the other position of the feeding square pipe are kept to be closed, sealing performance during blanking is guaranteed, and excessive dust in the flour mill body is prevented from flying out of the feeding square pipe during feeding.

The utility model relates to the field of coal washing equipment, in particular to a coal washing device which comprises a feeding box, a stirring shaft and a hollow supporting plate, a rotating stud is arranged at the upper end of a device shell, the outer side of the rotating stud is meshed with a mounting block, the feeding box is welded to the upper end of the mounting block, and a feeding pipe is arranged at the upper end of the feeding box. A feeding box is arranged at the upper end of the device shell, a feeding pipe is arranged at the lower end of the feeding box, a hollowed-out supporting plate is arranged in the device shell, a stirring shaft is arranged above the hollowed-out supporting plate, and stirring blades are arranged on the side face of the stirring shaft. The coal quality and utilization rate are improved; and the position of the feeding box is adjusted by rotating the stud, so that the coal briquettes are uniformly distributed on the hollow supporting plate, and the cleaning effect is improved.

The utility model discloses a wiring type square briquette coal pressing mold, and belongs to the technical field of briquette coal preparation. Comprising a pressing head device, a wiring device, a mold body and a demolding device. The wiring device comprises a detachable wiring structure, the detachable wiring structure is formed by splicing and fixing a plurality of wiring units along a wiring structure segmentation schematic line, and a plurality of wiring ports are uniformly formed in the detachable wiring structure in the vertical direction; the mold main body comprises a cylindrical mold and a detachable pressure-bearing base which are assembled and connected together; the demolding device comprises a double-layer demolding device, the double-layer demolding device is formed by connecting an inner buffer layer into an outer pressure bearing layer in a matched mode, and an inner layer sealing base plate is arranged at the bottom of the inner buffer layer. According to the utility model, the damage-free demolding process is realized by designing the double-layer demolding device, the operation of pre-burying various data lines when the square coal sample is pressed is realized by matching the drilling device with the detachable wiring device, and the pressed briquette is accurate in size data, so that a reliable sample is provided for subsequent experiments.

The application discloses a coke process tamping station shaking feeder material flow detection device and a detection method. The device can be obtained by low-cost structural modification on the basis of the existing shaking feeder structure. A proximity sensor detection assembly is arranged on the side of the shaking feeder hopper along the moving direction, and a plurality of multi-point detection sensors are arranged on the discharge end of the shaking feeder hopper. The proximity sensor detection assembly and the multi-point detection sensors are connected with a controller. The controller outputs real-time material flow values according to the sensing signals received by the sensors. The material flow detection device can reduce the degree of manual participation, scientifically monitor the falling material flow, detect the feeding frequency of the shaking feeder through the proximity sensor, realize feeding frequency statistics in the tamping process, and realize uniform feeding. The falling surface and the falling time are monitored through the multi-point detection sensors, so that the falling of each frequency is uniform, the uniformity of the coal cake growth is ensured, and the processing quality of the tamping coal cake is improved.

The invention relates to the technical field of raw coal washing and separation, and discloses a multi-stage crushing device for raw coal washing and separation, which comprises a shell, a feeding frame arranged at the top end of the shell, a crushing roller rotationally connected in the shell, a filter screen arranged in the shell, a conveying belt arranged on one side of the shell, and a screening assembly rotationally connected in the shell, crushed coal briquettes fall onto a filter screen and a sieve plate, small particles enter the next link through the filter screen, large coal briquettes circulate back to a feeding frame through the sieve plate to be crushed again, the coal briquettes subjected to primary crushing are subjected to reciprocating motion of an arc plate to be matched with a guide plate to achieve secondary extrusion crushing, then the coal briquettes fall onto a first separation plate and a second separation plate, and classification screening is completed through vertical reciprocating motion of the separation plates. Meanwhile, coal briquettes on the surface of the separation plate make contact with nail blocks at the bottom end of the arc plate to achieve re-crushing, and the nail blocks can dredge separation plate holes. According to the device, through cooperation of multi-stage crushing and graded screening, the raw coal crushing uniformity and efficiency are improved.

The invention belongs to the technical field of belt conveyor pretreatment equipment, and particularly relates to a coal briquette pretreatment device for a belt conveyor, which comprises a crusher main body, and a treatment box is fixedly connected to the crusher main body. The technical means that the crusher body and the treatment box are matched is adopted, preliminary particle size screening is conducted on input materials through the screening inclined plate arranged in an inner cavity of the treatment box, the materials with the large particle size and the small particle size enter the first rotating cylinder and the second rotating cylinder correspondingly, and the first rotating cylinder conducts heating treatment on the materials with the small particle size through the arc-shaped electric heating plate and the striker plate and conducts fixed-weight discharging; and when the second rotating cylinder rotates, a first arc-shaped abutting rod is matched with a spring set to drive a guide plate and other components to move, and the blended materials are intermittently conveyed to the feeding end of the crusher, so that resource waste is avoided, the operation process of equipment is simplified, and the working efficiency is improved. And the overall maintenance cost of the equipment can be reduced.

The utility model discloses a telescopic support device for coke oven coal supporting plate, including setting up in the bracket of civil engineering platform, setting up in the support frame of bracket top center position, slidingly connected in the support frame's support platform, setting up in the drive mechanism of support frame below, drive mechanism one end is fixed in the bracket, and the other end fixedly connected in support platform bottom, and the top of coal car is provided with the fixed frame, and the bottom of support frame is connected in the top of fixed frame, and the inside of support platform is provided with the guide rail, and the both sides of support frame are provided with the slider matched with guide rail, and the slider slidingly connected in the guide rail, and the top of coal supporting plate leans to support platform and includes, and the device forms telescopic dynamic support structure, when coal supporting plate enters the non -supporting interval from coke oven mouth, and drive mechanism drives support platform and leans to coal supporting plate bottom along support frame and slides, and the weight of coal cake is borne with the self -supporting structure of coal car, and the stability of coal loading operation is guaranteed.