CN115646586B - Coal mining and crushing system and crushing process - Google Patents
Coal mining and crushing system and crushing process Download PDFInfo
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- CN115646586B CN115646586B CN202211183575.2A CN202211183575A CN115646586B CN 115646586 B CN115646586 B CN 115646586B CN 202211183575 A CN202211183575 A CN 202211183575A CN 115646586 B CN115646586 B CN 115646586B
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- 239000003245 coal Substances 0.000 title claims abstract description 107
- 238000005065 mining Methods 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims abstract description 9
- 230000008569 process Effects 0.000 title claims abstract description 9
- 239000000463 material Substances 0.000 claims abstract description 91
- 230000007246 mechanism Effects 0.000 claims abstract description 53
- 238000000227 grinding Methods 0.000 claims abstract description 24
- 238000003825 pressing Methods 0.000 claims abstract description 16
- 238000007599 discharging Methods 0.000 claims abstract description 9
- 230000005540 biological transmission Effects 0.000 claims description 39
- 230000008878 coupling Effects 0.000 claims description 30
- 238000010168 coupling process Methods 0.000 claims description 30
- 238000005859 coupling reaction Methods 0.000 claims description 30
- 230000002093 peripheral effect Effects 0.000 claims description 29
- 238000001125 extrusion Methods 0.000 claims description 13
- 238000009826 distribution Methods 0.000 claims description 6
- 230000000903 blocking effect Effects 0.000 claims description 4
- 238000009423 ventilation Methods 0.000 claims description 4
- 230000009471 action Effects 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 2
- 230000009467 reduction Effects 0.000 claims 3
- 239000002184 metal Substances 0.000 claims 1
- 230000009286 beneficial effect Effects 0.000 abstract description 8
- 238000001914 filtration Methods 0.000 abstract description 4
- 238000012216 screening Methods 0.000 description 14
- 230000000694 effects Effects 0.000 description 13
- 238000003801 milling Methods 0.000 description 12
- 230000005484 gravity Effects 0.000 description 5
- 230000006872 improvement Effects 0.000 description 5
- 230000035939 shock Effects 0.000 description 5
- 238000007670 refining Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- RHZUVFJBSILHOK-UHFFFAOYSA-N anthracen-1-ylmethanolate Chemical compound C1=CC=C2C=C3C(C[O-])=CC=CC3=CC2=C1 RHZUVFJBSILHOK-UHFFFAOYSA-N 0.000 description 1
- 239000003830 anthracite Substances 0.000 description 1
- 239000002802 bituminous coal Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000003077 lignite Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000003415 peat Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000004449 solid propellant Substances 0.000 description 1
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Abstract
The invention relates to a coal mining crushing system and a crushing process, wherein the coal mining crushing system comprises a vibration platform, a feeding box is arranged on the inner wall of the vibration platform, a crushing mechanism is arranged at the lower part of the feeding box, a blockage removing mechanism capable of displacing and pressing towards the crushing mechanism is fixedly arranged at the inner top of the feeding box, a lifting cylinder is fixedly arranged on the inner wall of the vibration platform and at a position corresponding to the side of the feeding box, a feed return pipe is fixedly communicated between the lifting cylinder and the opposite surface of the feeding box, one end of a discharge hole of the crushing mechanism is fixedly communicated with the lifting cylinder through a discharging pipe, and a filtering and grinding mechanism is arranged on the inner wall of the lifting cylinder. The beneficial effects of the invention are as follows: through crushing mechanism's setting, make this device can accomplish the crushing operation of coal material by high efficiency, and this device when crushing operation, and this equipment has increased the clear stifled mechanism when feeding crushing mechanism on traditional crushing apparatus's basis.
Description
Technical Field
The invention relates to the technical field of coal mining, in particular to a coal mining crushing system and a crushing process.
Background
Coal is the most predominant solid fuel, is one of combustible organic rocks, and can be divided into peat, lignite, bituminous coal and anthracite according to different degrees of coalification. The mining sequence refers to the development sequence of stripping engineering in the open stope in time and space. When the coal mining is performed, the crushing device is needed to crush massive ores, but the conventional crushing device is easy to cause that the crushed coal mine blocking holes cannot be discharged in time, so that crushing work is affected.
In order to solve the problems in the prior art, patent document with publication number of CN113304860A discloses a crushing device with anti-blocking function for coal mine exploitation, the device ensures that a crushing cylinder is stable when being placed through the equal-height setting of the horizontal heights of two crutch plates, and by utilizing the arrangement of two threaded screw rods, an installation block cannot swing due to uneven stress when sliding, so that the anti-blocking head and a penetrating hole cannot be matched, but the technical scheme cannot effectively solve the blocking problem of coal materials at a crushing mechanism, and meanwhile, the conventional crushing device also cannot ensure the granularity uniformity of the crushed coal materials and the granularity fineness of the coal materials.
Disclosure of Invention
Aiming at the technical problems in the prior art, the invention provides a coal mining crushing system and a crushing process to solve the problems that the existing crushing equipment cannot effectively solve the problem of blockage of coal materials at a crushing mechanism, and the existing crushing device cannot ensure the uniformity of the granularity of the crushed coal materials and the granularity of the crushed coal materials.
The technical scheme for solving the technical problems is as follows: the utility model provides a coal mining crushing system, includes the vibrating platform, the feeding case is installed to the inner wall of vibrating platform, broken mechanism is installed to the lower part of feeding case, the interior top fixed mounting of feeding case has the clear stifled mechanism that can shift and exert pressure to broken mechanism direction, the inner wall of vibrating platform and the position fixed mounting that corresponds feeding case side have a material lifting cylinder, fixed intercommunication has the feed back pipe between the relative surface of material lifting cylinder and feeding case, the one end of broken mechanism discharge gate is through unloading pipe and material lifting cylinder fixed intercommunication, the inner wall of material lifting cylinder is installed and is strained the grinding mechanism, the week side of straining the grinding mechanism is connected with broken mechanism transmission through the belt.
The beneficial effects of the invention are as follows:
1) Through crushing mechanism's setting, make this device can accomplish the crushing operation of coal material by high efficiency, and this device is when crushing operation, and this equipment has increased the clear stifled mechanism when feeding crushing mechanism on traditional crushing apparatus's basis, when the coal material takes place the jam phenomenon in crushing mechanism department, under the effect of transmission lead screw, the platform slowly moves down appointed stroke, high-pressure fan in the air inlet box outputs the wind pressure with the settlement state, after the platform slowly moves down appointed stroke, then carry out forced physical extrusion operation to the coal material that blocks up in two crushing roller top, through the extrusion, thereby improve the intensity that crushing roller acted on the coal material and the unloading speed of coal material, through the improvement of above-mentioned intensity and unloading speed, thereby effectively solve the jam problem of coal material in crushing mechanism play department.
2) Through the setting of spiral sieve piece, carry feed cylinder, interior roller and outer roller, can also circulate the screening and refine the processing to the coal material after smashing on realizing the basis of coal material crushing function, during operation, spiral sieve piece can upwards carry the material, upwards carry the material state setting through spiral sieve piece, thereby make the coal material after smashing can carry out the layer upon layer and relapse the screening on spiral sieve piece, the fine coal that screens out through spiral sieve piece gets into the milling seam under the effect of gravity, after the buggy gets into milling, then by milling refinement, the buggy after refining is discharged through weeping hole and unloading pipe, through the realization of above-mentioned screening and refining function, thereby effectively guarantee granularity homogeneity and crushing effect after the coal material is smashed.
On the basis of the technical scheme, the invention can be improved as follows.
Further, crushing mechanism includes the crushing case of fixed intercommunication with the feeding case, the one end and the unloading pipe fixed intercommunication of crushing case discharge gate, the inner wall of crushing case rotates and is connected with the crushing roller that two symmetries set up, the Zhou Cemian of crushing roller is installed a set of broken tooth that is circumference array distribution, two the equal fixed mounting of tail end of crushing roller has allies oneself with the tooth, two allies oneself with tooth intermeshing, the side fixed mounting of crushing case has crushing motor, crushing motor's output axle head with one crushing roller fixed connection, one the week side of crushing roller passes through the belt and strains the transmission of grinding mechanism and be connected.
The beneficial effect of adopting above-mentioned further scheme is, during the use, crushing case output rotational speed with the settlement state, and behind the crushing motor work, drive two crushing rollers with the speed rotation then, when two crushing rollers rotated, the opposite direction of rotation, behind the crushing roller rotation, carry out crushing operation to the coal material that gets into in the feeding case then, the crushing tooth type on the crushing roller can customize or select according to actual demand.
Further, strain the grinding mechanism and include respectively with carry the coaxial counter shaft that sets up of feed box side, be fixed in the support and the fixed mounting of feed box side and carry the shell of milling of feed box bottom, the inner wall of support rotates and is connected with the shaft coupling that the level set up, the week side of shaft coupling pass through the belt with one the crushing roller transmission is connected, the week side of counter shaft rotates and is connected with the positive axle, the week side of counter shaft and positive axle all with shaft coupling transmission, the week side of positive axle rotates with carry the feed box to be connected, the week side of positive axle is fixed with the spiral sieve piece, the week side of spiral sieve piece rotates the laminating with the feed box, the inner wall of shell rotates and is connected with outer mill, the inner wall of outer mill rotates and is connected with interior mill, fixedly provided with the seam between the opposite surface of outer mill and interior mill, the week side of counter shaft rotates with interior mill to be connected, the bottom and the outer mill fixed connection of positive axle, the bottom and interior mill fixed connection, the circumference that sets up with the outer mill of mill and the shell of outer mill is equipped with a group of circumference and sets up and installs the weep hole and the shell of discharge opening and the discharge spout.
The beneficial effect of adopting above-mentioned further scheme is, after crushing motor work, because the shaft coupling is connected with the belt of crushing roller and is made the transmission connect the setting, the shaft coupling is input power, after the shaft coupling work, drive counter shaft and positive axle rotation then, the positive axle is both ends open-ended cavity tubular structure, the counter shaft is solid structure, and through the output direction control to crushing motor, make positive axle rotate the back, spiral sieve piece can upwards carry the material, the upward material carrying state setting through spiral sieve piece, thereby make the coal material after the breakage can carry out layer upon layer and relapse the screening on spiral sieve piece, the fine coal that screens through spiral sieve piece gets into the milling seam under the effect of gravity, the buggy gets into after milling, then be milled and refine, buggy after refining is discharged via weeping hole and unloading pipe, after the positive axle work, drive interior roller rotation then, after the counter shaft work, then drive outer roller cone of rolling, the width of milling seam is from top to bottom gradually narrow.
Further, the peripheral sides of the counter shaft and the positive shaft are fixedly provided with driven bevel gears, the peripheral sides of the shaft coupling are fixedly provided with two driving bevel gears, the peripheral sides of the driving bevel gears are respectively meshed with the two driven bevel gears, the two driven bevel gears are symmetrically arranged by taking the horizontal plane where the axis of the shaft coupling is located as the shaft, and the specifications of the two driven bevel gears are different.
The technical scheme has the advantages that the rotation directions of the positive shaft and the reverse shaft are opposite through the arrangement of the two driven bevel gears and the shaft coupling, the rotation speeds of the positive shaft and the reverse shaft are different through the specification arrangement of the two driving bevel gears, and the inner grinding roller and the outer grinding roller are in differential and reverse rotation states through the different arrangement of the rotation speeds of the positive shaft and the reverse shaft.
Further, sieve holes are uniformly distributed on the surface of the spiral sieve plate, the sieve holes are round holes, and the axes of the sieve holes are perpendicular to the axis of the positive shaft.
Adopt the beneficial effect of above-mentioned further scheme, the effect that the sieve mesh set up is in carrying out screening operation to the crushed coal material in area, and the coal material of screening is discharged through the discharge tube under the effect of gravity, and the aperture size of sieve mesh can be customized according to actual demand.
Further, the vibration platform includes the vibration frame, the inner wall of vibration frame respectively with broken case and feeding case fixed connection, vibrating motor and shock attenuation frame are fixed mounting respectively to the bottom surface of vibration frame, the truckle of a plurality of regular distributions is installed to the bottom surface of shock attenuation frame, the inner wall of shock attenuation frame just corresponds the position fixed mounting under the discharge tube and has out the hopper, the inside of ejection of compact hopper is fixed and is provided with ejection of compact inclined plane.
Adopt the beneficial effect of above-mentioned further scheme, when crushing motor during operation, vibrating motor exports vibration frequency with the settlement state, and vibrating motor exports vibration frequency after, makes the spiral sieve piece carry out the screening operation through vibration screening principle on the one hand, on the other hand can improve the flow and the unloading rate of material in the feeding case, through the improvement of coal material flow and unloading rate in the feeding case to effectively improve this rubbing crusher prevent blockking up effect.
Further, clear stifled mechanism includes driving motor, the transmission lead screw of vertical setting, two symmetries set up and all with feeding case sliding connection's baffle and with the fixed air inlet case of feeding case intercommunication respectively, the week side of transmission lead screw rotates with the feeding case to be connected, driving motor's output axle head passes through the belt and is connected with the transmission lead screw transmission, two fixed mounting has platform and drive plate respectively between the opposite surface of baffle, a set of ventilation hole that is regular distribution and vertical setting has been seted up to the inner wall of platform, the week side of transmission lead screw is connected with the drive plate transmission, the inner wall fixed mounting of air inlet case has a set of high-pressure fan that is circumference array distribution.
The beneficial effect of adopting above-mentioned further scheme is, when the coal material takes place the jam phenomenon in the top of two crushing rollers, under user's control action, transmission lead screw drive platform slowly moves down appointed stroke, and the platform moves down after the appointed stroke to carry out the physics extrusion operation to the coal material that blocks up in crushing roller top, through the physics extrusion, thereby improve the contact strength of coal material and crushing roller, then supplementary unloading speed that improves the coal material, thereby avoid the jam of coal material on crushing roller.
Further, the drive plate sets up in the top of platform, the platform is the metal material, sealed the pad with feeding case sliding fit is all installed to the both sides of baffle, the one end fixed mounting of air inlet case air intake has the filter screen.
Further, the fixed surface of feeding case is provided with the feed inlet, feed back pipe and unloading pipe all are the slope setting, carry the feed cylinder and be the hollow tubular structure of closed lower extreme open-ended in top.
A crushing process of a coal mining crushing system comprises the following steps:
SS001, crushing operation, before operation, the driving plate fully lifts upwards, the crushing motor outputs the rotational speed with the settlement power, after the crushing motor works, drive two crushing rollers to rotate on the one hand, on the other hand drive the shaft coupling to rotate, after the shaft coupling rotates, then drive the coaxial differential reverse rotation of the counter shaft and the positive shaft, and through the output direction control to the crushing motor, make the spiral sieve piece lift upwards, after the crushing motor works, the vibrating motor outputs the vibration frequency with the settlement state, after the coal material to be crushed enters the feeding box with settlement speed and flow, then flow into between two crushing rollers and crush the operation, when the coal material is piled up too much or produces the jam phenomenon in crushing roller department, under the effect of the transmission lead screw, the pressing table slowly moves down for a designated stroke, a middle-high pressure fan in the air inlet box outputs air pressure in a set state, after the pressing table slowly moves down for the designated stroke, then the coal materials blocked above the two crushing rollers are subjected to physical extrusion operation, the strength of the crushing rollers acting on the coal materials and the blanking speed of the coal materials are improved through extrusion, after the blocked coal materials are cleaned, the pressing table is automatically reset to an initial height, thus the entering of the coal materials is not influenced, the coal materials crushed by the crushing rollers enter a spiral sieve sheet for screening, the screened fine materials enter a grinding seam for grinding operation, the screened coarse coal materials flow back into the crushing box for circular crushing and circular screening until the particle size of the coal materials is qualified, and the ground coal powder is discharged through a discharge hopper.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a coal mining pulverizing system according to the present invention;
FIG. 2 is a schematic view of the structure of FIG. 1 from another perspective in accordance with the present invention;
FIG. 3 is a schematic view of a partial enlarged structure at A in FIG. 2 according to the present invention;
FIG. 4 is a schematic cross-sectional view of the air inlet box and the driving motor of the present invention;
FIG. 5 is a schematic view of a partially enlarged structure of the present invention at B in FIG. 4;
FIG. 6 is a schematic view of a partially enlarged structure of the present invention at C in FIG. 4;
FIG. 7 is a schematic view of a partially enlarged structure of the present invention at D in FIG. 4;
fig. 8 is a schematic view of the structure of the driving screw and the driving plate of the present invention.
In the drawings, the list of components represented by the various numbers is as follows:
1. the feeding box, 2, a lifting cylinder, 3, a feed back pipe, 4, a discharging pipe, 5, a crushing box, 6, a crushing roller, 7, a gear, 8, a crushing motor, 9, a counter shaft, 10, a support, 11, a grinding shell, 12, a coupling, 13, a positive shaft, 14, a spiral sieve sheet, 15, an outer grinding cylinder, 16, an inner grinding roller, 17, a discharge hole, 18, a discharging pipe, 19, a driven bevel gear, 20, a driving bevel gear, 21, a vibration frame, 22, a vibration motor, 23, a vibration frame, 24, a trundle, 25, a discharging hopper, 26, a driving motor, 27, a transmission screw, 28, a baffle plate, 29, a wind inlet box, 30, a pressing table, 31, a driving plate, 32 and a ventilation hole.
Detailed Description
The principles and features of the present invention are described below with reference to the drawings, the examples are illustrated for the purpose of illustrating the invention and are not to be construed as limiting the scope of the invention.
The present invention provides the following preferred embodiments
1-8, a coal mining crushing system comprises a vibration platform, wherein a feeding box 1 is arranged on the inner wall of the vibration platform, and a feeding hole is fixedly formed in the surface of the feeding box 1;
the vibration platform comprises a vibration frame 21, a vibration motor 22 and a shock absorption frame 23 are respectively and fixedly arranged on the bottom surface of the vibration frame 21, and a plurality of casters 24 which are regularly distributed are arranged on the bottom surface of the shock absorption frame 23.
When the crushing motor 8 works, the vibration motor 22 outputs the vibration frequency in a set state, after the vibration motor 22 outputs the vibration frequency, on one hand, the spiral screen sheet 14 can perform screening operation through a vibration screening principle, and on the other hand, the flow and the blanking rate of materials in the feeding box 1 can be improved, and the anti-blocking effect of the crusher is effectively improved through the improvement of the flow and the blanking rate of the coal materials in the feeding box 1;
the lower part of the feeding box 1 is provided with a crushing mechanism;
the crushing mechanism comprises a crushing box 5 fixedly communicated with the feeding box 1, and the inner wall of the vibration frame 21 is fixedly connected with the crushing box 5 and the feeding box 1 respectively;
the inner wall rotation of crushing case 5 is connected with two crushing roller 6 that the symmetry set up, and the Zhou Cemian of crushing roller 6 installs a set of crushing tooth that is circumference array and distributes, and the equal fixed mounting of tail end of two crushing roller 6 has allies oneself with tooth 7, and two allies oneself with tooth 7 intermeshing, and the side fixed mounting of crushing case 5 has crushing motor 8, and the output axle head and the crushing roller 6 fixed connection of crushing motor 8, the week side of a crushing roller 6 pass through the belt and are connected with the transmission of straining and grinding mechanism.
When the crushing box 5 is used, the rotating speed is output in a set state, after the crushing motor 8 works, the two crushing rollers 6 are driven to rotate at the same speed, when the two crushing rollers 6 rotate, the rotating directions are opposite, after the crushing rollers 6 rotate, the crushing operation is carried out on the coal materials entering the feeding box 1, and the crushing tooth types on the crushing rollers 6 can be customized or selected according to actual requirements;
the inner top of the feeding box 1 is fixedly provided with a blockage removing mechanism which can displace and apply pressure to the direction of the crushing mechanism;
the blockage removing mechanism comprises a driving motor 26, a vertically arranged transmission screw rod 27, two baffle plates 28 which are symmetrically arranged and are both in sliding connection with the feeding box 1, and an air inlet box 29 which is fixedly communicated with the feeding box 1, wherein sealing gaskets which are in sliding fit with the feeding box 1 are respectively arranged on two sides of the baffle plates 28;
the peripheral side surface of the transmission screw rod 27 is rotationally connected with the feeding box 1, the output shaft end of the driving motor 26 is in transmission connection with the transmission screw rod 27 through a belt, a pressing table 30 and a driving plate 31 are respectively and fixedly arranged between the opposite surfaces of the two baffle plates 28, the driving plate 31 is arranged above the pressing table 30, the pressing table 30 is made of metal materials,
the inner wall of the pressing table 30 is provided with a group of ventilation holes 32 which are regularly distributed and vertically arranged, the peripheral side surface of the transmission screw rod 27 is in transmission connection with the driving plate 31, the inner wall of the air inlet box 29 is fixedly provided with a group of high-pressure fans which are circumferentially distributed in array, one end of the air inlet box 29 is fixedly provided with a filter screen, and the filter screen is used for filtering and intercepting impurities in the air inlet process;
when the coal material is blocked above the two crushing rollers 6, under the control of a user, the transmission screw rod 27 drives the pressing table 30 to slowly move downwards for a specified stroke, and after the pressing table 30 moves downwards for the specified stroke, the coal material blocked above the crushing rollers 6 is subjected to physical extrusion operation, and the contact strength of the coal material and the crushing rollers 6 is improved through physical extrusion, so that the blanking rate of the coal material is increased in an auxiliary manner, and the blockage of the coal material on the crushing rollers 6 is avoided.
A lifting cylinder 2 is fixedly arranged on the inner wall of the vibration platform and corresponds to the lateral position of the feeding box 1, a feed back pipe 3 is fixedly communicated between the lifting cylinder 2 and the opposite surface of the feeding box 1, one end of a discharge hole of the crushing mechanism is fixedly communicated with the lifting cylinder 2 through a discharging pipe 4, one end of a discharge hole of the crushing box 5 is fixedly communicated with the discharging pipe 4, the feed back pipe 3 and the discharging pipe 4 are all obliquely arranged, and the lifting cylinder 2 is of a hollow cylindrical structure with the top end closed and the lower end open;
the inner wall of the lifting cylinder 2 is provided with a filtering and grinding mechanism, and the peripheral side surface of the filtering and grinding mechanism is in transmission connection with the crushing mechanism through a belt.
The filter mill mechanism respectively comprises a counter shaft 9 coaxially arranged with the lifting cylinder 2, a support 10 fixed on the side surface of the feeding box 1 and a mill shell 11 fixedly arranged at the bottom end of the lifting cylinder 2, wherein the inner wall of the support 10 is rotationally connected with a horizontally arranged coupling 12, the peripheral side surface of the coupling 12 is in transmission connection with a crushing roller 6 through a belt, the peripheral side surface of the counter shaft 9 is rotationally connected with a spur shaft 13, the peripheral side surfaces of the counter shaft 9 and the spur shaft 13 are both in transmission connection with the coupling 12, the peripheral side surface of the spur shaft 13 is rotationally connected with the lifting cylinder 2, a spiral sieve sheet 14 is fixedly arranged on the peripheral side surface of the spur shaft 13, the peripheral side surface of the spiral sieve sheet 14 is rotationally attached to the lifting cylinder 2, an outer mill cylinder 15 is rotationally connected with the inner mill cylinder 15, the inner wall of the outer mill cylinder 15 is rotationally connected with the inner mill cylinder 16, a mill seam is fixedly arranged between the peripheral side surface of the outer mill cylinder 15 and the inner mill cylinder 16, the bottom end of the counter shaft 9 is rotationally connected with the outer mill cylinder 15, the bottom end of the spur shaft 13 is fixedly connected with the inner mill cylinder 16, the peripheral side surface of the spur shaft 13 is rotationally connected with the inner mill cylinder 16, the peripheral side surface of the spur sieve sheet 14 is rotationally attached to the inner mill cylinder 15, the peripheral side surface of the inner mill cylinder 15 is rotationally connected with the inner mill cylinder 11, the inner mill cylinder 11 is rotationally connected with the inner mill cylinder 16 and the inner mill cylinder 11 is fixedly connected with the inner roller 16, the inner roller 16 and the inner roller 2 is horizontally arranged with the horizontal roller 2, the horizontal roller 2.
When the crushing motor 8 works, the coupling 12 is connected with the belt of the crushing roller 6 to enable the transmission connection to be arranged, the coupling 12 is input with power, the coupling 12 drives the counter shaft 9 and the positive shaft 13 to rotate after working, the positive shaft 13 is of a hollow tubular structure with two open ends, the counter shaft 9 is of a solid structure, after the positive shaft 13 rotates by controlling the output direction of the crushing motor 8, the spiral sieve sheet 14 can lift materials upwards, the crushed coal materials can be repeatedly screened layer by layer on the spiral sieve sheet 14 through the upward lifting state of the spiral sieve sheet 14, fine coal screened by the spiral sieve sheet 14 enters a milling seam under the action of gravity, the pulverized coal is milled and thinned after entering the milling, the thinned pulverized coal is discharged through the leakage hole 17 and the blanking pipe 4, the positive shaft 13 drives the inner milling roller 16 to rotate after working, the outer milling drum 15 is driven to rotate after the counter shaft 9 works, and the milling seam width is gradually narrowed from top to bottom.
Driven bevel gears 19 are fixedly arranged on the peripheral side surfaces of the counter shaft 9 and the positive shaft 13, two driving bevel gears 20 are fixedly arranged on the peripheral side surface of the coupling 12, the peripheral side surfaces of the two driving bevel gears 20 are respectively meshed with the two driven bevel gears 19, the two driven bevel gears 19 are symmetrically arranged by taking the horizontal plane where the axis of the coupling 12 is located as an axis, and the specifications of the two driven bevel gears 19 are different.
The rotation directions of the front shaft 13 and the back shaft 9 are opposite through the arrangement of the positions of the two driven bevel gears 19 and the coupling 12, the rotation speeds of the front shaft 13 and the back shaft 9 are different through the specification arrangement of the two driving bevel gears 20, and the inner grinding roller 16 and the outer grinding roller 15 are in differential and reverse rotation states through the arrangement of the opposite rotation speeds of the front shaft 13 and the back shaft 9.
The surface of the spiral sieve plate 14 is uniformly provided with sieve holes, the sieve holes are round holes, and the axes of the sieve holes are perpendicular to the axis of the positive shaft 13.
The effect of sieve mesh setting is that carry out screening operation to the coal material after treating the breakage, and the coal material of screening is discharged through discharge tube 18 under the effect of gravity, and the aperture size of sieve mesh can be customized according to actual demand.
A crushing process of a coal mining crushing system comprises the following steps:
SS001, crushing operation, before the operation, driving plate 31 fully upwards rises, crushing motor 8 is with setting for power output rotational speed, on the one hand drive two crushing roller 6 rotate, on the other hand then drive shaft coupling 12 rotate, after the shaft coupling 12 rotates, then drive counter shaft 9 and positive shaft 13 coaxial differential counter rotation, and through the output direction control to crushing motor 8, make the spiral screen piece 14 carry out the upward feed, after crushing motor 8 is operated, vibrating motor 22 exports the vibration frequency with the settlement state, the coal material that waits to break gets into feed box 1 with settlement rate and flow, after the coal material flows into feed box 1, then flow into between two crushing roller 6 and carry out crushing operation, when coal material is piled up too much or is produced blocking phenomenon in crushing roller 6 department, under the effect of drive lead screw 27, the high-pressure fan in the air inlet box 29 is exported wind pressure with settlement state by the rethread, after the roll 30 moves down the settlement stroke, then carry out the physical extrusion operation to the coal material that blocks up above two crushing roller 6, through the crushing roller 6 acts on the intensity and the crushing roller, the coal material that is filtered out the crushing roller is carried out to the crushing roller, the coal material is filtered out the crushing roller size through the crushing roller is washed down, the crushing roller is washed out, the coal material is filtered out the crushing roller size is washed down, the coal material is filtered through the crushing roller 5, the coal material is filtered down, the coal material is filtered through the crushing roller is washed down, after the crushing roller is broken down, and the coal material is washed, and is passed through the crushing roller 5, and is passed through the crushing roller is washed, and is passed through the speed is passed, and is passed through to be broken, and is passed by.
To sum up: the beneficial effects of the invention are embodied in that
Through crushing mechanism's setting, make this device can accomplish the crushing operation of coal material by high efficiency, and this device is when crushing operation, and this equipment has increased the clear stifled mechanism when feeding crushing mechanism on traditional crushing apparatus's basis, when the coal material takes place the jam phenomenon in crushing mechanism department, under the effect of transmission lead screw, the platform slowly moves down appointed stroke, high-pressure fan in the air inlet box outputs the wind pressure with the settlement state, after the platform slowly moves down appointed stroke, then carry out forced physical extrusion operation to the coal material that blocks up in two crushing roller top, through the extrusion, thereby improve the intensity that crushing roller acted on the coal material and the unloading speed of coal material, through the improvement of above-mentioned intensity and unloading speed, thereby effectively solve the jam problem of coal material in crushing mechanism play department.
The foregoing is only illustrative of the present invention and is not to be construed as limiting thereof, but rather as various modifications, equivalent arrangements, improvements, etc., within the spirit and principles of the present invention.
Claims (7)
1. The utility model provides a coal mining crushing system, includes the vibrating platform, its characterized in that, feeding case (1) is installed to the inner wall of vibrating platform, crushing mechanism is installed to the lower part of feeding case (1), the interior top fixed mounting of feeding case (1) has the clear stifled mechanism that can shift to crushing mechanism direction and exert pressure, the inner wall of vibrating platform and the position that corresponds feeding case (1) side fixed mounting have a lifting cylinder (2), the filter grinding mechanism is installed to the inner wall of lifting cylinder (2), the week side of filter grinding mechanism passes through the belt and is connected with crushing mechanism transmission;
a feed back pipe (3) is fixedly communicated between the opposite surfaces of the lifting cylinder (2) and the feeding box (1), and one end of a discharge hole of the crushing mechanism is fixedly communicated with the lifting cylinder (2) through a discharging pipe (4);
the crushing mechanism comprises a crushing box (5) fixedly communicated with the feeding box (1), one end of a discharge hole of the crushing box (5) is fixedly communicated with a discharging pipe (4), two symmetrically arranged crushing rollers (6) are rotationally connected to the inner wall of the crushing box (5), a group of crushing teeth distributed in a circumferential array are arranged on Zhou Cemian of each crushing roller (6), a connecting tooth (7) is fixedly arranged at the tail end of each crushing roller (6), the two connecting teeth (7) are meshed with each other, and a crushing motor (8) is fixedly arranged on the side face of the crushing box (5);
the output shaft end of the crushing motor (8) is fixedly connected with a crushing roller (6), and the peripheral side surface of the crushing roller (6) is in transmission connection with the filter mill mechanism through a belt; the filter mill mechanism comprises a counter shaft (9) coaxially arranged with a lifting cylinder (2), a support (10) fixed on the side surface of a feeding box (1) and a mill shell (11) fixedly arranged at the bottom end of the lifting cylinder (2), wherein the inner wall of the support (10) is rotationally connected with a horizontally arranged coupling (12), the peripheral side surface of the coupling (12) is in transmission connection with a crushing roller (6) through a belt, the peripheral side surfaces of the counter shaft (9) are rotationally connected with a spur shaft (13), the peripheral side surfaces of the counter shaft (9) and the spur shaft (13) are both in transmission connection with the coupling (12), the peripheral side surface of the spur shaft (13) is rotationally connected with the lifting cylinder (2), a spiral screen sheet (14) is fixedly arranged on the peripheral side surface of the spur shaft (13) and rotationally attached to the lifting cylinder (2), the inner wall of the mill shell (11) is rotationally connected with an outer mill cylinder (15), the inner wall of the outer mill cylinder (15) is rotationally connected with an inner mill cylinder (16), the peripheral side surface of the counter shaft (13) is rotationally connected with the inner mill cylinder (16), the bottom end of the counter shaft (16) is fixedly connected with the inner mill cylinder (16), a group of leakage holes (17) which are distributed in a circumferential array and are vertically arranged are formed in the bottom ends of the outer grinding cylinder (15) and the grinding shell (11), and a discharge pipe (18) matched with the leakage holes (17) is fixedly arranged at the bottom end of the grinding shell (11); driven bevel gears (19) are fixedly arranged on the peripheral side surfaces of the counter shaft (9) and the positive shaft (13), two driving bevel gears (20) are fixedly arranged on the peripheral side surface of the coupling (12), the peripheral side surfaces of the two driving bevel gears (20) are respectively meshed with the two driven bevel gears (19), the two driven bevel gears (19) are symmetrically arranged by taking the horizontal plane where the axis of the coupling (12) is located as an axis, and the specifications of the two driven bevel gears (19) are different.
2. A coal mining comminution system according to claim 1, characterized in that the surface of the spiral screen sheet (14) is evenly distributed with screen holes, the screen holes are circular holes, and the axes of the screen holes are perpendicular to the axis of the positive shaft (13).
3. A coal mining comminution system according to claim 1, characterized in that the vibration platform comprises a vibration frame (21), the inner wall of the vibration frame (21) being fixedly connected with the comminution box (5) and the feed box (1) respectively.
4. A coal mining crushing system according to claim 3, wherein the bottom surface of the vibration frame (21) is fixedly provided with a vibration motor (22) and a vibration reduction frame (23) respectively, the bottom surface of the vibration reduction frame (23) is provided with a plurality of casters (24) which are regularly distributed, the inner wall of the vibration reduction frame (23) is fixedly provided with a discharge hopper (25) corresponding to the position right below the discharge pipe (18), and the inside of the discharge hopper (25) is fixedly provided with a discharge inclined plane;
the utility model provides a clear stifled mechanism includes driving motor (26), transmission lead screw (27) of vertical setting, two symmetry sets up and all with feeding case (1) sliding connection's baffle (28) and with feeding case (1) fixed intercommunication's air inlet case (29), the week side of transmission lead screw (27) is connected with feeding case (1) rotation, the output axle head of driving motor (26) is connected with transmission lead screw (27) transmission through the belt, two fixed mounting respectively has platform (30) and driving plate (31) between the opposite surface of baffle (28), a set of ventilation hole (32) that are regular distribution and vertical setting are seted up to the inner wall of platform (30), the week side of transmission lead screw (27) is connected with driving plate (31) transmission, the inner wall fixed mounting of air inlet case (29) has a set of high-pressure fan that is circumference array distribution.
5. The coal mining crushing system according to claim 4, wherein the driving plate (31) is arranged above the pressing table (30), the pressing table (30) is made of metal, sealing gaskets which are in sliding fit with the feeding box (1) are arranged on two sides of the baffle plate (28), and a filter screen is fixedly arranged at one end of an air inlet of the air inlet box (29).
6. The coal mining crushing system according to claim 1, wherein a feed inlet is fixedly formed in the surface of the feed box (1), the feed back pipe (3) and the discharge pipe (4) are obliquely arranged, and the feed lifting cylinder (2) is of a hollow cylindrical structure with a closed top end and an open lower end.
7. A coal mining comminution process of a coal mining comminution system according to any one of claims 1 to 6 including the steps of:
before crushing operation, a driving plate (31) is lifted upwards fully, a crushing motor (8) outputs rotating speed at set power, after the crushing motor (8) works, on one hand, two crushing rollers (6) are driven to rotate, on the other hand, a coupling (12) is driven to rotate, after the coupling (12) rotates, a counter shaft (9) and a positive shaft (13) are driven to rotate coaxially and differentially in opposite directions, and through controlling the output direction of the crushing motor (8), a spiral sieve sheet (14) lifts materials upwards, and after the crushing motor (8) works, a vibrating motor (22) outputs vibrating frequency at set state;
the coal material to be crushed enters the feeding box (1) at a set speed and flow, after the coal material flows into the feeding box (1), the coal material flows into a space between two crushing rollers (6) to be crushed, when the coal material is accumulated too much or a blocking phenomenon occurs at the crushing rollers (6), under the action of a transmission screw rod (27), a pressing table (30) slowly moves down to a designated stroke, a medium-high pressure fan in an air inlet box (29) outputs air pressure in a set state, after the pressing table (30) slowly moves down to the designated stroke, the coal material blocked above the two crushing rollers (6) is subjected to physical extrusion operation, the strength of the crushing rollers (6) acting on the coal material and the blanking speed of the coal material are improved through extrusion, after the coal material to be blocked is cleaned, the pressing table (30) is automatically reset to an initial height, so that the coal material is not affected, the crushed coal material enters a spiral sieve sheet (14) to be screened, the screened fine coal material enters into a grinding operation in a set state, the screened crushing material flows back to the crushing box (5) to be screened, and the coal material is recycled until the coal material is discharged through a qualified grinding hopper (25).
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Effective date of registration: 20230925 Address after: 719000 Shanghe village, Jinjitan Town, Yuyang District, Yulin City, Shaanxi Province Applicant after: Shaanxi Yinhe Coal Development Co.,Ltd. Address before: No. 39, Yonghe Road, Yuzui, Jiangbei District, Chongqing, 400000 Applicant before: Shang Mingjiang |
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