CN110354974B - Coal processing equipment for coal mine - Google Patents
Coal processing equipment for coal mine Download PDFInfo
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- CN110354974B CN110354974B CN201910703672.1A CN201910703672A CN110354974B CN 110354974 B CN110354974 B CN 110354974B CN 201910703672 A CN201910703672 A CN 201910703672A CN 110354974 B CN110354974 B CN 110354974B
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- coal
- crushing
- separation net
- screening
- screening cabinet
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
- B02C18/08—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within vertical containers
- B02C18/10—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within vertical containers with drive arranged above container
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
- B02C18/16—Details
- B02C18/24—Drives
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C21/00—Disintegrating plant with or without drying of the material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
- B02C23/10—Separating or sorting of material, associated with crushing or disintegrating with separator arranged in discharge path of crushing or disintegrating zone
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
- B02C23/14—Separating or sorting of material, associated with crushing or disintegrating with more than one separator
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
- B02C23/16—Separating or sorting of material, associated with crushing or disintegrating with separator defining termination of crushing or disintegrating zone, e.g. screen denying egress of oversize material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C7/00—Crushing or disintegrating by disc mills
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C7/00—Crushing or disintegrating by disc mills
- B02C7/11—Details
- B02C7/16—Driving mechanisms
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/42—Drive mechanisms, regulating or controlling devices, or balancing devices, specially adapted for screens
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
- B02C23/16—Separating or sorting of material, associated with crushing or disintegrating with separator defining termination of crushing or disintegrating zone, e.g. screen denying egress of oversize material
- B02C2023/165—Screen denying egress of oversize material
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Crushing And Grinding (AREA)
Abstract
The invention discloses coal processing equipment for a coal mine, which belongs to the technical field of coal processing equipment and comprises a coal crushing and screening mechanism, a screening cabinet, a grinding table, a conveying belt and a coal grinding mechanism, wherein the coal crushing and screening mechanism comprises a coal crushing component, a secondary crushing component, a reciprocating vibration component, an upper separation net and a lower separation net, a dust removal component is arranged inside the screening cabinet, a feeding channel communicated with the inside of the screening cabinet is arranged at the top of the screening cabinet, two discharging channels are arranged on the left side of the screening cabinet, and the discharging channels are communicated with the inside of the screening cabinet. The invention has the advantages that the multistage crushing operation on coal can be automatically realized through the coal crushing and screening mechanism, the upper separation net and the lower separation net can be vibrated intermittently under the action of the reciprocating vibration component, the condition that the upper separation net and the lower separation net are blocked is avoided, and the dust falling treatment on the generated dust can be automatically realized through the dust removing component.
Description
Technical Field
The invention relates to the technical field of coal processing equipment, in particular to coal processing equipment for a coal mine.
Background
Coal is known as black gold by people and is industrial food, which is one of main energy sources used in the human world since the eighteenth century, and since the twenty-first century, although the value of coal is not as high as before, coal is one of indispensable energy sources for production and life of human beings at present and in a long time in the future after all, the supply of coal is also related to the stability of the development of the industry of China and the aspect of the whole society, and the problem of the supply safety of coal is also the most important part in the energy safety of China. The coal is required to be crushed after being excavated and before being used, and then is further crushed into coal particles with proper sizes according to the requirement; at present, after coal is sprinkled on a screen mesh by a forklift, some coal blocks can be clamped on the mesh of the screen mesh to cause the accumulation of the coal to influence the screening work, and the improvement is needed.
The invention patent with the publication number of CN108187794A discloses a reciprocating type processing device for coal processing, which comprises a shell, wherein a fixed partition plate is fixedly connected to the lower portion of the inner portion of the shell, a motor mounting seat is fixedly connected to the left side of the lower portion of the fixed partition plate, a motor is fixedly connected to the upper portion of the motor mounting seat, a driving rotating shaft is fixedly connected to the output end of the motor, a driving bevel gear is fixedly connected to the left side of the driving rotating shaft, a longitudinal fixed shaft is rotatably connected to the middle portion of the fixed partition plate through a bearing, a driven bevel gear is fixedly connected to the lower portion of the longitudinal fixed shaft, the driven bevel gear is meshed with the driving bevel gear, a rotating grinding plate is fixedly connected to the top of the longitudinal fixed shaft, and a plurality of grinding lugs are fixedly connected to the upper portion of the rotating grinding plate. Compared with the prior art, the invention has the beneficial effects that: the coal grinding device is simple in structure, convenient to use and low in equipment cost, coal can be effectively ground when the coal grinding device is used, grinding particles are small, and therefore the combustion efficiency of the coal can be improved.
However, the above apparatus still has the following problems: firstly, although the device can grind coal into smaller particles, the coal blocks blocking the meshes of the fixed partition plates are difficult to treat, the waste of the coal blocks is caused, and meanwhile, the coal is accumulated on the fixed partition plates to influence the normal operation of screening, so that improvement is needed; secondly, the device does not have the function of dust removal, and because coal mainly can produce a large amount of mining area dust in the production process, not only the environment is polluted, but also the air quality is seriously influenced.
Disclosure of Invention
The invention aims to provide coal processing equipment for a coal mine, and aims to solve the technical problems that coal blocks blocking meshes of a fixed partition plate are difficult to process and dust cannot be removed in the coal production process in the prior art.
In order to solve the technical problems, the invention provides the following technical scheme: the coal crushing and screening mechanism is arranged inside the screening cabinet, the conveyor belt is arranged between the grinding table and the screening cabinet, the grinding table is arranged on the right side of the screening cabinet, the coal grinding mechanism is arranged above the grinding table, the coal crushing and screening mechanism comprises a coal crushing component, a secondary crushing component, a reciprocating vibration component, an upper separation net and a lower separation net, the upper separation net and the lower separation net are both horizontally arranged, the reciprocating vibration component is used for driving the upper separation net and the lower separation net to intermittently vibrate, the secondary crushing component is arranged below the coal crushing component, a dust removal component is arranged inside the screening cabinet, a feeding channel communicated with the inside of the screening cabinet is arranged at the top of the screening cabinet, and two discharging channels are arranged on the left side of the screening cabinet, the discharging channel is communicated with the inside of the screening cabinet.
Further, broken subassembly of coal is including the axis of rotation of vertical setting, broken motor and a plurality of installation piece of setting at screening cabinet top, be connected through the bearing between the top of axis of rotation and the top of screening cabinet, broken motor's output sets up down, through shaft coupling fixed connection, a plurality of between the output of broken motor and the top of axis of rotation the installation piece interval cover is established in the axis of rotation, every all be equipped with four connecting seats that are matrix distribution on the installation piece, every all be equipped with rather than articulated mounting bar on the connecting seat, be equipped with broken blade on the mounting bar, be equipped with expanding spring on the lateral wall of installation piece and between the mounting bar.
Further, reciprocal vibrations subassembly is established including rotating motor, motor cabinet and cover and is established the cam on rotating the motor output, the motor cabinet sets up on the lateral wall of screening cabinet, it sets up on the motor cabinet to rotate the motor, go up the bottom of compartment net and all be equipped with down the compartment net top and bear the seat, bear and be equipped with the gyro wheel rather than rotating the connection on the seat, the cam cooperatees with two gyro wheels, the below of going up the compartment net is equipped with four last spring seats that are matrix distribution, every go up the spring seat and all be equipped with first vibrations spring with the bottom of last compartment net, the top of compartment net is equipped with four lower spring seats that are matrix distribution down, every the spring seat all is equipped with down vibrations spring with the bottom of lower compartment net down.
Further, the dust removal subassembly sets up the infusion pipeline on screening cabinet lateral wall, every including two symmetries all be equipped with atomizing nozzle on infusion pipeline's the delivery port, atomizing nozzle sets up the inside at the screening cabinet, the both sides of conveyer belt all are equipped with prevents falling board and support frame, the top of support frame is equipped with the air-blower that two intervals set up, the air outlet of air-blower is equipped with the heating wire, the output of air-blower sets up towards the conveyer belt.
Further, the secondary crushing subassembly is including two material strips and two horizontal setting slide bars in screening cabinet inside, every material strip homoenergetic gliding cover is established on two slide bars, two material strip relative one end all is equipped with the crushing blade that a plurality of set up along the length direction interval of material strip that removes.
Furthermore, the secondary crushing assembly further comprises a vertically arranged transmission shaft, a cylinder seat arranged on the side wall of the screening cabinet and a pushing cylinder arranged at the top of the cylinder seat, a mounting frame rotatably connected with the bottom of the transmission shaft is arranged inside the screening cabinet, a rotating strip is sleeved at the top end of the transmission shaft, an extending lug is arranged at the top of each material moving strip, a movable connecting rod is sleeved on each extending lug, the two connecting rods are hinged with two ends of each rotating strip respectively, and the output end of the pushing cylinder is fixedly connected with the side wall of one of the material moving strips.
Further, coal grinds mechanism including lifter plate, grinding disc, the installation axle of vertical setting and sets up the frame that bears at grinding table top, it grinds the chamber to grind the bench to be equipped with the cylinder, the inside that the chamber was ground to the cylinder is equipped with the screening dish that is the level setting, the left side of grinding table is equipped with the feeder hopper that grinds the chamber intercommunication with the cylinder, the right side of grinding table is equipped with the discharge passageway who grinds the chamber intercommunication with the cylinder, the lifter plate is the level setting, the top of lifter plate is equipped with four guide bars that are matrix distribution, bear and be equipped with the through-hole with guide bar sliding fit, the top of bearing the frame is equipped with the lift cylinder of two vertical settings, two the output of lift cylinder all with the top fixed connection of lifter plate, be connected through the bearing between the top of installation axle and the lifter plate.
Further, the top of lifter plate is equipped with step motor, the upper segment cover of installation axle is equipped with driven gear, step motor's output end sets up down, the cover is equipped with the driving gear with driven gear meshing on step motor's the output.
Compared with the prior art, the invention has the beneficial effects that:
the coal crushing and screening mechanism can automatically realize multi-stage crushing operation on coal, the upper separation net and the lower separation net can intermittently vibrate under the action of the reciprocating vibration assembly, the situation that the upper separation net and the lower separation net are blocked is avoided, dust falling treatment can be automatically realized on generated dust through the dust removing assembly, and the technical problems that coal blocks blocked in meshes of the fixed partition plate are difficult to treat and dust cannot be removed in the coal production process in the prior art are solved.
Secondly, the invention is provided with a coal crushing and screening mechanism which comprises a coal crushing component, a secondary crushing component, a reciprocating vibration component, an upper separation net and a lower separation net, wherein the coal crushing and screening mechanism can automatically realize multi-stage crushing operation on coal and can realize multi-stage screening on the coal, the coal crushing component can automatically realize primary crushing operation on the coal, a structure that a telescopic spring is arranged between the side wall of a mounting block and a mounting strip is adopted, the cutting range of a crushing blade can be enlarged, the secondary crushing component can realize relative movement of two material moving strips, so that the crushing blade can crush the coal into smaller particles, the grinding operation on the smaller coal particles is convenient, the cam intermittence can be matched with two rollers under the action of the reciprocating vibration component, and the upper separation net and the lower separation net can intermittently vibrate, the situation that the upper separation net and the lower separation net are blocked is avoided, the processing efficiency of coal is improved, the cam can rotate by rotating the motor, the cam can be sequentially matched with the two rollers in the rotating process, and the upper separation net and the lower separation net can vibrate intermittently.
Thirdly, dust falling treatment can be automatically realized on generated dust through the dust removing assembly, coal on the conveying belt can be dried, normal use of the coal is prevented from being affected due to damp, liquid is introduced into the liquid conveying pipeline by workers, the atomization nozzle can spray the liquid in an atomized state, the atomized liquid can perform dust falling operation on the generated dust, when the coal on the conveying belt passes through the air blower, air flow can be blown out of the conveying belt by the air blower, and hot air can be blown to the coal by the air flow through the electric heating wire, so that drying operation can be performed on the coal.
The coal grinding mechanism can automatically grind the crushed coal, so that the coal is ground more finely and has smaller grinding particles, the combustion efficiency of the coal can be improved, the structure is reasonable, and the generated coal particles can be collected in a centralized manner.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic cross-sectional view of the present invention;
FIG. 3 is a schematic view, partly in section, of the present invention;
FIG. 4 is an enlarged view taken at A in FIG. 3;
FIG. 5 is a schematic cross-sectional view of a coal crushing and screening mechanism and a screening cabinet;
FIG. 6 is an enlarged view of FIG. 5 at B;
FIG. 7 is a schematic perspective view of the conveyor belt and coal grinding mechanism;
FIG. 8 is a schematic cross-sectional view of a coal grinding mechanism.
The reference numbers in the figures are:
coal crushing and screening mechanism 10, upper separation net 11, upper spring seat 12, first vibration spring 13, lower separation net 14, lower spring seat 15, lower vibration spring 16, screening cabinet 20, feeding channel 21, discharging channel 22, grinding table 30, conveyor belt 40, coal grinding mechanism 50, lifting plate 51, grinding disc 52, mounting shaft 53, bearing frame 54, cylindrical grinding cavity 55, screening disc 551, feeding hopper 552, discharging channel 553, guide rod 554, lifting cylinder 56, stepping motor 57, driven gear 58, driving gear 59, coal crushing assembly 60, rotating shaft 61, crushing motor 62, mounting block 63, connecting seat 64, mounting bar 65, crushing blade 66, expansion spring 67, secondary crushing assembly 70, material moving bar 71, sliding bar 72, crushing blade 73, transmission shaft 74, cylinder seat 75, pushing cylinder 751, mounting frame 76, rotating bar 77, extending lug 78, the device comprises a connecting rod 79, a reciprocating vibration assembly 80, a rotating motor 81, a motor base 82, a cam 83, a bearing base 84, a roller 85, a dust removal assembly 90, a liquid conveying pipeline 91, an atomizing nozzle 92, a falling prevention plate 93, a support frame 94, a blower 95 and a heating wire 96.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description of the present invention, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
Referring to fig. 1 to 8, the coal crushing and screening device 10, the screening cabinet 20, the grinding table 30, the conveyor belt 40 and the coal grinding mechanism 50 are included, the coal crushing and screening mechanism 10 is disposed inside the screening cabinet 20, the conveyor belt 40 is disposed between the grinding table 30 and the screening cabinet 20, the grinding table 30 is disposed on the right side of the screening cabinet 20, the coal grinding mechanism 50 is disposed above the grinding table 30, the coal crushing and screening mechanism 10 includes a coal crushing assembly 60, a secondary crushing assembly 70, a reciprocating vibration assembly 80, an upper separation net 11 and a lower separation net 14, the upper separation net 11 and the lower separation net 14 are both horizontally disposed, the reciprocating vibration assembly 80 is used for driving the upper separation net 11 and the lower separation net 14 to intermittently vibrate, the secondary crushing assembly 70 is disposed below the coal crushing assembly 60, a dust removal assembly 90 is disposed inside the screening cabinet 20, the top of the screening cabinet 20 is provided with a feeding channel 21 communicated with the inside of the screening cabinet, the left side of the screening cabinet 20 is provided with two discharging channels 22, and the discharging channels 22 are communicated with the inside of the screening cabinet 20; can realize the multistage broken operation to coal automatically through broken screening mechanism 10 of coal, and can realize the multistage screening to coal, can avoid going up separating network 11 and the condition that separating network 14 appears blockking up down under reciprocating vibration subassembly 80's effect, the machining efficiency to coal has been improved, can realize carrying out the dust fall through dust removal subassembly 90 automatically and handle the dust that produces, and can dry the coal on conveying belt 40, avoid coal to wet and influence its normal use, can grind the operation to the coal after the breakage automatically through coal grinding mechanism 50, make coal more meticulous by the grinding, the abrasive grain is less, and then can promote the combustion efficiency of coal, rational in infrastructure can concentrate and collect the coal granule that produces.
The coal crushing assembly 60 comprises a vertically arranged rotating shaft 61, a crushing motor 62 and a plurality of mounting blocks 63, wherein the crushing motor 62 is arranged at the top of the screening cabinet 20, the top end of the rotating shaft 61 is connected with the top of the screening cabinet 20 through a bearing, the output end of the crushing motor 62 is arranged downwards, the output end of the crushing motor 62 is fixedly connected with the top end of the rotating shaft 61 through a coupler, the mounting blocks 63 are sleeved on the rotating shaft 61 at intervals, each mounting block 63 is provided with four connecting seats 64 distributed in a matrix manner, each connecting seat 64 is provided with a mounting bar 65 hinged with the connecting seat 64, each mounting bar 65 is provided with a crushing blade 66, and a telescopic spring 67 is arranged between the side wall of each mounting block 63 and the mounting bar 65; broken subassembly 60 of coal can realize the preliminary broken operation to coal automatically, adopt on the lateral wall of installation piece 63 and set up expanding spring 67's structure between the mounting bar 65, can enlarge broken blade 66's cutting scope, make the coal piece can be cut the multistage, broken motor 62 work can make axis of rotation 61 take place to rotate, make axis of rotation 61 can drive a plurality of installation piece 63 and take place to rotate, make installation piece 63 can drive installation bar 65 and take place to rotate, make mounting bar 65 can drive expanding spring 67 and broken blade 66 and carry out the centrifugation and rotate, make broken blade 66 can enlarge its broken scope under expanding spring 67's effect.
The reciprocating vibration assembly 80 comprises a rotating motor 81, a motor seat 82 and a cam 83 sleeved on the output end of the rotating motor 81, the motor seat 82 is arranged on the side wall of the screening cabinet 20, the rotating motor 81 is arranged on the motor seat 82, the bottom of the upper separation net 11 and the top of the lower separation net 14 are both provided with bearing seats 84, the bearing seats 84 are provided with rollers 85 rotatably connected with the bearing seats, the cam 83 is matched with the two rollers 85, four upper spring seats 12 distributed in a matrix manner are arranged below the upper separation net 11, the bottom of each upper spring seat 12 and the bottom of each upper separation net 11 are both provided with a first vibration spring 13, the upper of the lower separation net 14 is provided with four lower spring seats 15 distributed in a matrix manner, and the bottom of each lower spring seat 15 and the lower separation net 14 are both provided with a lower vibration spring 16; under the action of the reciprocating vibration assembly 80, the cam 83 can be intermittently matched with the two rollers 85, so that the upper separation net 11 and the lower separation net 14 can be intermittently vibrated, the situation that the upper separation net 11 and the lower separation net 14 are blocked is avoided, the processing efficiency of coal is improved, the cam 83 can be rotated by rotating the motor 81, the cam 83 can be sequentially matched with the two rollers 85 in the rotating process, and the upper separation net 11 and the lower separation net 14 can be intermittently vibrated.
The dust removal assembly 90 comprises two infusion pipelines 91 symmetrically arranged on the side wall of the screening cabinet 20, an atomizing nozzle 92 is arranged at a water outlet of each infusion pipeline 91, the atomizing nozzle 92 is arranged inside the screening cabinet 20, anti-falling plates 93 and support frames 94 are arranged on two sides of the conveyor belt 40, two blowers 95 arranged at intervals are arranged at the top of each support frame 94, electric heating wires 96 are arranged at air outlets of the blowers 95, and output ends of the blowers 95 are arranged towards the conveyor belt 40; can realize carrying out the dust fall through dust removal subassembly 90 automatically and handle the dust that produces, and can dry the coal on conveyer belt 40, avoid coal to wet and influence its normal use, the worker lets in liquid in to infusion pipeline 91, atomizing nozzle 92 can be with liquid with the state blowout of atomizing, make atomizing liquid can carry out the dust fall operation to the dust that produces, when coal on conveyer belt 40 passes through air-blower 95, air-blower 95 work can blow off the air current to conveyer belt 40, the air current can blow hot-blast to coal through heating wire 96, come to dry the operation to coal.
The secondary crushing assembly 70 comprises two material moving strips 71 and two sliding rods 72 horizontally arranged in the screening cabinet 20, each material moving strip 71 is sleeved on the two sliding rods 72 in a sliding manner, and one end, opposite to the two material moving strips 71, of each material moving strip 71 is provided with a plurality of crushing blades 73 arranged at intervals along the length direction of the material moving strip 71; the sliding rod 72 is used for supporting and guiding the material moving strip 71, so that the material moving strip 71 can slide on the sliding rod 72 quickly.
The secondary crushing assembly 70 further comprises a vertically arranged transmission shaft 74, a cylinder seat 75 arranged on the side wall of the screening cabinet 20 and a pushing cylinder 751 arranged at the top of the cylinder seat 75, a mounting frame 76 rotatably connected with the bottom of the transmission shaft 74 is arranged inside the screening cabinet 20, a rotating strip 77 is sleeved at the top end of the transmission shaft 74, an extending lug 78 is arranged at the top of each material moving strip 71, a movable connecting rod 79 is sleeved on each extending lug 78, the two connecting rods 79 are respectively hinged with two ends of the rotating strip 77, and the output end of the pushing cylinder 751 is fixedly connected with the side wall of one of the material moving strips 71; the secondary crushing assembly 70 can realize the relative movement of the two material moving strips 71, the crushing blade 73 can crush coal into small particles, the small coal particles are convenient to grind, the pushing cylinder 751 can enable one of the material moving strips 71 to move horizontally, the material moving strip 71 can drive the extension lug 78 to move, the extension lug 78 can drive one connecting rod 79 to move, the connecting rod 79 can enable the other connecting rod 79 to move in the rotation of the rotating strip 77, the two material moving strips 71 can move relatively, and the crushing blade 73 can crush coal blocks in the middle of the material moving strips 71.
The coal grinding mechanism 50 comprises a lifting plate 51, a grinding disc 52, a vertically arranged mounting shaft 53 and a bearing frame 54 arranged at the top of the grinding table 30, the grinding table 30 is provided with a cylindrical grinding cavity 55, a screening disc 551 horizontally arranged is arranged inside the cylindrical grinding cavity 55, a feed hopper 552 communicating with the cylindrical grinding chamber 55 is provided at the left side of the grinding table 30, a discharge passage 553 communicating with the cylindrical grinding chamber 55 is provided at the right side of the grinding table 30, the lifting plate 51 is horizontally arranged, four guide rods 554 distributed in a matrix are arranged at the top of the lifting plate 51, the bearing frame 54 is provided with a through hole in sliding fit with the guide rod 554, the top of the bearing frame 54 is provided with two vertically arranged lifting cylinders 56, the output ends of the two lifting cylinders 56 are both fixedly connected with the top of the lifting plate 51, and the top end of the mounting shaft 53 is connected with the lifting plate 51 through a bearing; can grind the operation automatically to the coal after the breakage through coal grinding mechanism 50, make coal ground more meticulous, the abrasive grain is less, and then can promote the combustion efficiency of coal, rational in infrastructure can concentrate on collecting the coal granule that produces, coal can get into the inside to cylinder grinding chamber 55 under the effect of conveyer belt 40, and fall on screening dish 551, two lift cylinders 56 simultaneous working can make lifter plate 51 remove downwards this moment, make the installation axle remove, make grinding disc 52 can conflict with the coal granule.
A stepping motor 57 is arranged at the top of the lifting plate 51, a driven gear 58 is sleeved on the upper section of the mounting shaft, the output end of the stepping motor 57 is arranged downwards, and a driving gear 59 meshed with the driven gear 58 is sleeved on the output end of the stepping motor 57; the stepping motor 57 can rotate the driving gear 59 when operating, the driving gear 59 can drive the driven gear 58 engaged with the driving gear, the driven gear 58 can drive the installation shaft and the grinding disc 52 to rotate, the grinding disc 52 grinds coal, and the ground coal particles can enter the discharge channel 553 through the screening disc 551 and are discharged.
The working principle of the invention is as follows: an operator can manually enter coal to be processed into the screening cabinet 20 through the feeding channel 21, multi-stage crushing operation on the coal can be automatically realized through the coal crushing and screening mechanism 10, multi-stage screening on the coal can be realized, the cam 83 can be intermittently matched with the two rollers 85 under the action of the reciprocating vibration component 80, the upper separation net 11 and the lower separation net 14 can intermittently vibrate, the situation that the upper separation net 11 and the lower separation net 14 are blocked is avoided, the processing efficiency on the coal is improved, the cam 83 can rotate through the work of the rotating motor 81, the cam 83 can be sequentially matched with the two rollers 85 in the rotating process, the upper separation net 11 and the lower separation net 14 can intermittently vibrate, the coal crushing component 60 can automatically realize primary crushing operation on the coal, a structure that the expansion spring 67 is arranged between the side wall of the mounting block 63 and the mounting strip 65 is adopted, the cutting range of the crushing blade 66 can be expanded, so that coal blocks can be cut into multiple sections, the crushing motor 62 can rotate the rotating shaft 61 when working, the rotating shaft 61 can drive the mounting blocks 63 to rotate, the mounting blocks 63 can drive the mounting strips 65 to rotate, the mounting strips 65 can drive the expansion springs 67 and the crushing blades 66 to rotate centrifugally, the crushing blade 66 can expand the crushing range under the action of the expansion springs 67, the secondary crushing assembly 70 can realize the relative movement of the two material moving strips 71, the crushing blade 73 can crush coal into smaller particles, the grinding operation of the smaller coal particles is convenient, the pushing cylinder 751 can horizontally move one of the material moving strips 71 when working, the material moving strip 71 can drive the extending lugs 78 to move, the extending lugs 78 can drive one connecting rod 79 to move, and the connecting rod 79 can move the other connecting rod 79 when the rotating strip 77 rotates, the two material moving strips 71 can move relatively, the crushing blade 73 can crush the coal blocks positioned in the middle of the material moving strips 71, dust falling treatment can be automatically realized on the generated dust through the dust removing assembly 90, the coal on the conveying belt 40 can be dried, the influence on the normal use of the coal due to moisture is avoided, a worker introduces liquid into the liquid conveying pipeline 91, the atomizing nozzle 92 can spray the liquid in an atomized state, the atomized liquid can perform dust falling operation on the generated dust, when the coal on the conveying belt 40 passes through the air blower 95, the air blower 95 can blow air flow to the conveying belt 40, the air flow can blow hot air to the coal through the electric heating wire 96 to perform drying operation on the coal, the crushed coal can be automatically ground through the coal grinding mechanism 50, the coal is ground more finely, and the ground particles are smaller, and then can promote the combustion efficiency of coal, rational in infrastructure can concentrate and collect the coal granule that produces, coal can get into the inside of cylinder grinding chamber 55 under the effect of conveyer belt 40, and drop on screening disc 551, two lift cylinders 56 work simultaneously this moment can make lifter plate 51 remove downwards, make the installation axle remove, make grinding disc 52 can conflict with the coal granule, step motor 57 work can make driving gear 59 take place to rotate, make driving gear 59 can drive driven gear 58 rather than the meshing, make driven gear 58 can drive installation axle and grinding disc 52 and rotate, make grinding disc 52 grind the coal, the coal granule after the grinding can get into to discharge passage 553 through screening disc 551 and discharge.
Claims (4)
1. A coal processing device for coal mines comprises a coal crushing and screening mechanism (10), a screening cabinet (20), a grinding table (30), a conveyor belt (40) and a coal grinding mechanism (50), wherein the coal crushing and screening mechanism (10) is arranged inside the screening cabinet (20), the conveyor belt (40) is arranged between the grinding table (30) and the screening cabinet (20), the grinding table (30) is arranged on the right side of the screening cabinet (20), the coal grinding mechanism (50) is arranged above the grinding table (30), a dust removal assembly (90) is arranged inside the screening cabinet (20), a feeding channel (21) communicated with the inside of the screening cabinet (20) is arranged at the top of the screening cabinet (20), two discharging channels (22) are arranged on the left side of the screening cabinet (20), and the discharging channels (22) are communicated with the inside of the screening cabinet (20);
the method is characterized in that:
the coal crushing and screening mechanism (10) comprises a coal crushing assembly (60), a secondary crushing assembly (70), a reciprocating vibration assembly (80), an upper separation net (11) and a lower separation net (14), wherein the upper separation net (11) and the lower separation net (14) are both horizontally arranged, the reciprocating vibration assembly (80) is used for driving the upper separation net (11) and the lower separation net (14) to intermittently vibrate, and the secondary crushing assembly (70) is arranged below the coal crushing assembly (60);
the coal crushing assembly (60) comprises a rotating shaft (61) which is vertically arranged, a crushing motor (62) which is arranged at the top of the screening cabinet (20) and a plurality of mounting blocks (63), the top end of the rotating shaft (61) is connected with the top of the screening cabinet (20) through a bearing, the output end of the crushing motor (62) is arranged downwards, the output end of the crushing motor (62) is fixedly connected with the top end of the rotating shaft (61) through a coupler, a plurality of mounting blocks (63) are sleeved on the rotating shaft (61) at intervals, each mounting block (63) is provided with four connecting seats (64) distributed in a matrix manner, each connecting seat (64) is provided with a mounting strip (65) hinged with the connecting seat, a crushing blade (66) is arranged on the mounting strip (65), and a telescopic spring (67) is arranged between the side wall of the mounting block (63) and the mounting strip (65);
the secondary crushing assembly (70) comprises two material moving strips (71) and two sliding rods (72) horizontally arranged in the screening cabinet (20), each material moving strip (71) is sleeved on the two sliding rods (72) in a sliding manner, and one ends, opposite to the two material moving strips (71), of the two material moving strips (71) are provided with a plurality of crushing blades (73) arranged at intervals along the length direction of the material moving strips (71); the secondary crushing assembly (70) further comprises a vertically arranged transmission shaft (74), a cylinder seat (75) arranged on the side wall of the screening cabinet (20) and a pushing cylinder (751) arranged at the top of the cylinder seat (75), an installation frame (76) rotatably connected with the bottom of the transmission shaft (74) is arranged inside the screening cabinet (20), rotating strips (77) are sleeved at the top end of the transmission shaft (74), an extending lug (78) is arranged at the top of each material moving strip (71), a movable connecting rod (79) is sleeved on each extending lug (78), the two connecting rods (79) are respectively hinged to two ends of each rotating strip (77), and the output end of each pushing cylinder (751) is fixedly connected with the side wall of one material moving strip (71);
the reciprocating vibration component (80) comprises a rotating motor (81), a motor base (82) and a cam (83) sleeved on the output end of the rotating motor (81), the motor base (82) is arranged on the side wall of the screening cabinet (20), the rotating motor (81) is arranged on the motor base (82), the bottom of the upper separation net (11) and the top of the lower separation net (14) are respectively provided with a bearing base (84), the bearing base (84) is provided with a roller (85) rotationally connected with the bearing base, the cam (83) is matched with the two rollers (85), four upper spring seats (12) distributed in a matrix are arranged below the upper separation net (11), each upper spring seat (12) and the bottom of the upper separation net (11) are respectively provided with a first vibration spring (13), four lower spring seats (15) distributed in a matrix are arranged above the lower separation net (14), a lower vibration spring (16) is arranged at the bottom of each lower spring seat (15) and the bottom of the lower separation net (14);
coal to be processed enters the screening cabinet (20) through the feeding channel (21), primary crushing operation on the coal can be automatically realized through the coal crushing assembly (60), the rotating shaft (61) can be rotated by the operation of the crushing motor (62), the rotating shaft (61) can drive the installation blocks (63) to rotate, the installation blocks (63) can drive the installation strips (65) to rotate, the installation strips (65) can drive the expansion springs (67) and the crushing blades (66) to centrifugally rotate, and the crushing blades (66) can expand the crushing range under the action of the expansion springs (67); the intermittent matching of the cam (83) and the two rollers (85) is realized through the reciprocating vibration assembly (80), so that the upper separation net (11) and the lower separation net (14) can be vibrated intermittently; one of the material moving strips (71) can be horizontally moved by the operation of the pushing cylinder (751), so that the material moving strips (71) can drive the extension lugs (78) to move, the extension lugs (78) can drive one connecting rod (79) to move, the connecting rod (79) can drive the other connecting rod (79) to move under the rotation of the rotating strip (77), the two material moving strips (71) can move relatively, and the coal is crushed into smaller particles by the crushing blade (73).
2. The coal processing equipment for the coal mine according to claim 1, wherein the dust removal assembly (90) comprises two symmetrical liquid conveying pipelines (91) arranged on the side wall of the screening cabinet (20), each liquid conveying pipeline (91) is provided with an atomizing nozzle (92) at a water outlet, the atomizing nozzles (92) are arranged inside the screening cabinet (20), the two sides of the conveyor belt (40) are provided with an anti-falling plate (93) and a support frame (94), the top of the support frame (94) is provided with two air blowers (95) arranged at intervals, air outlets of the air blowers (95) are provided with electric heating wires (96), and output ends of the air blowers (95) are arranged towards the conveyor belt (40).
3. The coal processing equipment for the coal mine according to claim 1, wherein the coal grinding mechanism (50) comprises a lifting plate (51), a grinding disc (52), a vertically arranged installation shaft (53) and a bearing frame (54) arranged at the top of the grinding table (30), a cylindrical grinding cavity (55) is arranged on the grinding table (30), a screening disc (551) horizontally arranged is arranged inside the cylindrical grinding cavity (55), a feed hopper (552) communicated with the cylindrical grinding cavity (55) is arranged at the left side of the grinding table (30), a discharge channel (553) communicated with the cylindrical grinding cavity (55) is arranged at the right side of the grinding table (30), the lifting plate (51) is horizontally arranged, four guide rods (554) distributed in a matrix are arranged at the top of the lifting plate (51), and through holes matched with the guide rods (554) in a sliding manner are arranged on the bearing frame (54), the top of bearing frame (54) is equipped with two vertical lift cylinders (56) that set up, two the output of lift cylinder (56) all with the top fixed connection of lifter plate (51), be connected through the bearing between the top of installation axle and lifter plate (51).
4. The coal processing equipment for the coal mine according to claim 3, characterized in that a stepping motor (57) is arranged at the top of the lifting plate (51), a driven gear (58) is sleeved on the upper section of the mounting shaft, the output end of the stepping motor (57) is arranged downwards, and a driving gear (59) meshed with the driven gear (58) is sleeved on the output end of the stepping motor (57).
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205700758U (en) * | 2016-03-28 | 2016-11-23 | 德兴市宋氏葛业有限公司 | A kind of Radix Puerariae crushing pulping machine of band ultraviolet disinfection |
| CN107350273A (en) * | 2017-08-28 | 2017-11-17 | 安徽新弘环保设备科技有限公司 | A kind of food waste treatment equipment and its method based on bioconversion |
| CN108326007A (en) * | 2018-01-31 | 2018-07-27 | 赣州研顺飞科技有限公司 | A kind for the treatment of of!medical waste device facilitating separating residual liquid |
| CN108855356A (en) * | 2018-06-28 | 2018-11-23 | 泉州市顶优优工业设计有限公司 | A kind of machining stone crushing device |
| CN208426761U (en) * | 2018-07-16 | 2019-01-25 | 平舆县蓝天农业开发有限公司 | A kind of oil-filtering apparatus of sesame oil squeezing |
| CN208555016U (en) * | 2018-04-23 | 2019-03-01 | 朱明新 | A kind of agricultural wheat exclusion device |
| CN209020520U (en) * | 2018-10-16 | 2019-06-25 | 曲靖师范学院 | Grinding device is used in a kind of preparation of titanium deoxide catalyst |
| CN209109334U (en) * | 2018-10-30 | 2019-07-16 | 安徽省锦江农化有限公司 | A kind of fungicide preparation facilities of agricultural management oligosaccharide containing spring thunder |
-
2019
- 2019-07-31 CN CN201910703672.1A patent/CN110354974B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205700758U (en) * | 2016-03-28 | 2016-11-23 | 德兴市宋氏葛业有限公司 | A kind of Radix Puerariae crushing pulping machine of band ultraviolet disinfection |
| CN107350273A (en) * | 2017-08-28 | 2017-11-17 | 安徽新弘环保设备科技有限公司 | A kind of food waste treatment equipment and its method based on bioconversion |
| CN108326007A (en) * | 2018-01-31 | 2018-07-27 | 赣州研顺飞科技有限公司 | A kind for the treatment of of!medical waste device facilitating separating residual liquid |
| CN208555016U (en) * | 2018-04-23 | 2019-03-01 | 朱明新 | A kind of agricultural wheat exclusion device |
| CN108855356A (en) * | 2018-06-28 | 2018-11-23 | 泉州市顶优优工业设计有限公司 | A kind of machining stone crushing device |
| CN208426761U (en) * | 2018-07-16 | 2019-01-25 | 平舆县蓝天农业开发有限公司 | A kind of oil-filtering apparatus of sesame oil squeezing |
| CN209020520U (en) * | 2018-10-16 | 2019-06-25 | 曲靖师范学院 | Grinding device is used in a kind of preparation of titanium deoxide catalyst |
| CN209109334U (en) * | 2018-10-30 | 2019-07-16 | 安徽省锦江农化有限公司 | A kind of fungicide preparation facilities of agricultural management oligosaccharide containing spring thunder |
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Effective date of registration: 20210616 Address after: 272200 middle section of West Street, Xiaoyun Town, Jinxiang County, Jining City, Shandong Province Applicant after: XIAOYUN COAL MINE OF JINING MINING INDUSTRY GROUP Co.,Ltd. Address before: 239200 Wangji village, Banta Town, Lai'an county, Chuzhou City, Anhui Province Applicant before: Hu Liyu |
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