147 results about "Briquetage" patented technology

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.

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 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 relates to the technical field of scraper conveyors, and discloses a wear-resistant scraper conveyor middle trough which comprises two side plates, a middle plate is fixedly connected between the middle ends of the two side plates, and a sound insulation plate is fixedly embedded in the middle plate. According to the wear-resistant scraper conveyor middle trough, the rolling columns are arranged on the bottom plate, so that a chain can be supported when the chain returns, the direct friction pressure between the chain and the bottom plate is effectively reduced, the overall wear resistance is greatly improved, and the service life of equipment is remarkably prolonged; the lubricating system conveys lubricating liquid in a water tank into a spray pipe through a pump body, and then the lubricating liquid is sprayed to the surface of the middle plate by a nozzle at a downward inclined angle. By means of the design, it is ensured that the middle plate can continuously obtain a proper amount of stable lubricating liquid in the working process, dry friction and additional abrasion caused by insufficient lubrication are effectively avoided, and meanwhile high-temperature coal gangue or coal briquettes can be cooled.

The invention relates to the technical field of coal briquette processing, and discloses coal briquette pulverizing equipment which comprises a supporting seat, a screening box is fixedly connected to the top of the supporting seat, a pulverizing cylinder is fixedly connected to the top of the screening box, a feeding hopper is fixedly connected to the top end of the pulverizing cylinder, a first pulverizing mechanism is arranged in the pulverizing cylinder, and a second pulverizing mechanism is arranged in the supporting seat. And an air outlet hole is formed in the inner wall of one side of the screening box, a fan is fixedly connected into the air outlet hole, a slope block is fixedly connected to the inner wall of the bottom of the supporting base and is opposite to the fan, and a first clamping plate is fixedly connected to one side of the slope block. According to the coal briquette grinding device, the inner grinding disc is driven by the double-shaft-extension asynchronous motor to rotate, so that coal briquettes are ground under the cooperation of the outer grinding disc, then the rotating shaft is driven by the double-shaft-extension asynchronous motor to rotate, so that the grinding arms are driven to rotate on the grinding disc, coal particles are ground, and the coal briquettes are fully ground.

The invention provides a crushing device for a coal washer. The crushing device comprises a crushing assembly, and the crushing assembly comprises an operation shell, two first gears, a transmission mechanism, a stirring, guiding and sealing mechanism, a servo motor, two crushing rollers and two first transmission rods; one first gear drives a feeding sealing roller to rotate through a transmission mechanism, the feeding sealing roller drives a plurality of second gears to rotate on an outer gear ring, the second gears drive a third transmission rod to rotate, and the third transmission rod drives a plurality of shifting plates to rotate; according to the coal briquette crushing device, coal briquettes in a feeding through hole are preliminarily crushed and moved into an arc-shaped feeding groove, then the coal briquettes in the arc-shaped feeding groove are stirred and conveyed to a crushing roller through a stirring plate, a crushing channel can be blocked through a feeding sealing roller, dust is prevented from overflowing when the coal briquettes are crushed, and therefore the production environment and the physical and psychological health of workers are guaranteed; and the material blocking condition is avoided, so that the working efficiency is improved.

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 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 relates to the technical field of detection and inspection devices, in particular to a coal free expansion degree measuring device which comprises a base, a heating device is arranged on the left side of the top of the base, a feeding device is arranged on the right side of the top of the base, and the heating device comprises a crucible fixedly installed on the left side of the top of the base. A heating block is fixedly mounted at the bottom of an inner cavity of the crucible, a protective cover is arranged in the crucible, a top plate is arranged at the top of the crucible, a placement plate is arranged at the bottom of the top plate, and the feeding device comprises a first mounting plate fixedly mounted on the right side of the top of the base. According to the measuring device for the free expansion degree of the coal, the heating device and the feeding device are installed through the arrangement of the base, coal briquettes are heated through the arrangement of the heating device, the compared coal briquettes are conveyed into the heating device for comparison through the arrangement of the feeding device, and the situation that the feeding of the coal briquettes is influenced by the higher temperature, and the measurement is influenced is avoided.

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 invention provides a dehydration device for a coal washer. The dehydration device comprises a dehydration assembly, and the dehydration assembly comprises an operation frame, an annular fixing plate, a plurality of springs, a conical operation box, a vibration air inlet mechanism, a spiral plate, a cylinder and a liquid discharge pipe; the vibration air inlet mechanism drives the annular fixing plate to vibrate, meanwhile, the vibration air inlet mechanism is used for injecting air into the spiral exhaust cavity in the spiral plate, the annular fixing plate is used for assisting the conical operation box like a vibrating screen through the spring, and the conical operation box drives coal briquettes on the spiral plate to slightly float; water in the coal briquettes is filtered into a spiral water guide cavity through liquid inlet filtering holes, then gas in a spiral exhaust cavity is conveyed into the coal briquettes on the spiral plate through exhaust holes, the coal briquettes can be dried, the water can be assisted into the liquid inlet filtering holes, and the coal briquettes can be conveyed into the spiral water guide cavity through the exhaust holes. And the drying efficiency and the drying effect of the coal briquettes are improved.

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 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 application discloses a coal quantity metering device for mine through-hole drilling hydraulic punching, which comprises a mobile track, a bottom plate arranged on the top of the mobile track, a lifting foot arranged on the left side of the bottom plate, a water tank fixedly connected to the top left side of the bottom plate, a water discharge mechanism arranged on the top left side of the bottom plate, a flameproof vibration source motor arranged on the top right side of the water discharge mechanism, a metering linkage conveying device arranged on the front right side, and a control cabinet fixedly connected to the top right rear end of the bottom plate. When separating coal water, the coal water in the filter tank is filtered by the filter plate, and the fine sludge is guided into the bottom of the water tank through the drain pipe. When the filter tank vibrates up and down, the supporting frame shakes up and down, and the lower pressing plate impacts the arc-shaped frame. When the arc-shaped frame is impacted, the filter plate on the top of the arc-shaped frame rises, the coal blocks with greater weight in the filter tank are lifted to the right side, and the coal blocks are conveyed to the right side, so that the coal block conveying is more convenient.

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 invention provides a laser radar protection mechanism and a control method for an underground coal mine intelligent guniting robot, and the mechanism comprises a pedestal which is fixedly disposed on the guniting robot; the mounting plate is rotationally arranged at the top end of the base, and a positioning assembly used for driving the mounting plate to rotate is arranged on the mounting plate; the mounting seat is fixedly arranged on the top surface of the mounting plate and is used for bearing a laser radar; the protective cover is rotationally arranged above the mounting seat and is used for covering the laser radar; the driving assembly is arranged on one side of the mounting base and used for driving the protective cover to rotate; and the limiting assembly is arranged on the other side of the mounting seat and is used for detecting the overturning state of the protective cover. The laser radar protection mechanism can be automatically controlled to be opened or closed, so that the laser radar is effectively protected, the damage risk of the laser radar is reduced, the situation that the laser radar is damaged due to falling of coal briquettes, and then the project progress is affected is avoided, and the working efficiency of underground tunneling face guniting operation is improved.

The invention belongs to the technical field of coal briquette crushing, and discloses a multi-stage collaborative crushing device for preparing coal water slurry, which comprises a shell, a first-stage crushing wheel and a second-stage crushing wheel, and further comprises a rotating assembly arranged at the middle end of an inner cavity of the shell; the moving assembly is mounted on the outer side of the shell; the third-stage crushing part is movably connected to the interior of the shell and located below the rotating assembly; wherein the rotating assembly comprises a driving piece arranged on the shell; through cooperation of structures such as a first-stage crushing wheel, a second-stage crushing wheel, a rotating assembly and a third-stage crushing part, coal briquettes are subjected to primary crushing through the first-stage crushing wheel through a feeding port of the shell, crushed coal falls to the top face of a second discharging plate, secondary crushing is conducted through back-and-forth movement of the second discharging plate, and the crushing efficiency is improved. Through mutual cooperation of multi-stage crushing, the crushing effect is greatly improved, meanwhile, multi-functional limitation is conducted on single equipment, and the use cost is reduced.

The application discloses a coal block crusher cleaning device, relates to the technical field of coal mine production, and improves the problems that if the effective interval adjustment of the brush plate is difficult, on one hand, it is difficult to maintain stable cleaning strength only by intermittent extrusion force, leading to incomplete cleaning of coal cinder, on the other hand, the coal cinder that is not cleaned in time can be mixed into a subsequent processing flow, affecting the quality of coal products, reducing the market competitiveness of products and the like, and comprises a box body, the cleaning mechanism comprises an electric cylinder and a push plate, and the other side surface of the push plate is fixedly provided with brush strips and spraying pipes respectively, the application can stably move the push plate installed at the output end through the cleaning mechanism, the brush strips and the spraying pipes connected with the push plate follow synchronously, through the linkage design, the brush strips and the spraying pipes can be accurately close to the crushing mechanism, efficient cleaning and flushing of residual materials on the surface of the crushing equipment are realized, and the cleaning effect is obviously improved.

The invention belongs to the technical field of coal briquette screening equipment, and particularly relates to a fluctuating multi-element screen which comprises a fluctuating multi-element screen body, guardrails are hinged to the two sides of the top end of the fluctuating multi-element screen body through hinges, and a feeding hopper is fixedly connected to a feeding opening of the fluctuating multi-element screen body through bolts. And the inner wall of the feeding hopper is fixedly connected with a coal briquette material pretreatment mechanism. The fluctuating multi-element screen has the functions of detecting the humidity of coal briquette materials, drying and reducing the surface adhesion force, and also has the capability of collecting fine coal powder in the coal briquette materials, so that the fine coal powder can be collected and reused, the environmental protection performance of the fluctuating multi-element screen can be improved, the body health of workers is guaranteed, and the working efficiency is improved. And in addition, the situation that screen holes in the fluctuating multi-element screen are interfered by fine pulverized coal with large adhesion force can be avoided, the grading screening effect of coal briquette materials in the fluctuating multi-element screen is improved, and the use reliability of the fluctuating multi-element screen is improved.

The utility model relates to the technical field of coal mining and processing, in particular to a coal washing pool for coal processing, which comprises a water injection tank, the left end of the water injection tank is fixedly connected with a water inlet pipe, the inside of the water injection tank is fixedly connected with a partition plate, the right end of the water injection tank is fixedly connected with a washing pool, and the left side of the washing pool is fixedly connected with an inclined plate. The coal briquette cleaning device comprises a cleaning pool, the lower surface of the cleaning pool is fixedly connected with convex blocks which are distributed in a linear mode, the interior of the cleaning pool is rotationally connected with a rotating shaft, and the two ends of the rotating shaft penetrate through the surface of the cleaning pool. And meanwhile, a second gear is driven to rotate through a coupler, the second gear and a first gear drive a rotating shaft to rotate under the meshing effect, a stirring plate fixedly connected with the rotating shaft and a limiting wheel stir the cleaning liquid, and the effect of fully cleaning attachments on the surfaces of the coal briquettes is achieved.