CN115646586A - Coal mining crushing system and crushing process - Google Patents
Coal mining crushing system and crushing process Download PDFInfo
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- CN115646586A CN115646586A CN202211183575.2A CN202211183575A CN115646586A CN 115646586 A CN115646586 A CN 115646586A CN 202211183575 A CN202211183575 A CN 202211183575A CN 115646586 A CN115646586 A CN 115646586A
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- 239000003245 coal Substances 0.000 title claims abstract description 108
- 238000005065 mining Methods 0.000 title claims abstract description 24
- 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 64
- 230000007246 mechanism Effects 0.000 claims abstract description 51
- 238000000227 grinding Methods 0.000 claims abstract description 44
- 238000003825 pressing Methods 0.000 claims abstract description 15
- 238000001914 filtration Methods 0.000 claims abstract description 5
- 230000005540 biological transmission Effects 0.000 claims description 35
- 230000008878 coupling Effects 0.000 claims description 31
- 238000010168 coupling process Methods 0.000 claims description 31
- 238000005859 coupling reaction Methods 0.000 claims description 31
- 230000002093 peripheral effect Effects 0.000 claims description 16
- 238000001125 extrusion Methods 0.000 claims description 14
- 238000012216 screening Methods 0.000 claims description 13
- 238000007599 discharging Methods 0.000 claims description 10
- 230000035939 shock Effects 0.000 claims description 8
- 238000010521 absorption reaction Methods 0.000 claims description 5
- 239000002245 particle Substances 0.000 claims description 5
- 230000009471 action Effects 0.000 claims description 4
- 238000005096 rolling process Methods 0.000 claims description 2
- 238000007789 sealing Methods 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims 1
- 230000009286 beneficial effect Effects 0.000 abstract description 8
- 230000000694 effects Effects 0.000 description 13
- 239000011148 porous material Substances 0.000 description 6
- 230000005484 gravity Effects 0.000 description 5
- 230000006872 improvement Effects 0.000 description 5
- 238000003801 milling Methods 0.000 description 4
- 238000007670 refining Methods 0.000 description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 2
- 235000017491 Bambusa tulda Nutrition 0.000 description 2
- 241001330002 Bambuseae Species 0.000 description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 2
- 239000011425 bamboo Substances 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000009423 ventilation Methods 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
- 230000002337 anti-port Effects 0.000 description 1
- 239000002802 bituminous coal Substances 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009434 installation 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
- 239000003415 peat Substances 0.000 description 1
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- 239000011435 rock Substances 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
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Abstract
The invention relates to a coal mining crushing system and a crushing process, which comprises a vibration platform, wherein 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 applying pressure to the crushing mechanism is fixedly arranged at the inner top of the feeding box, a material lifting barrel is fixedly arranged on the inner wall of the vibration platform and corresponds to the side part of the feeding box, a material return pipe is fixedly communicated between the opposite surfaces of the material lifting barrel and the feeding box, one end of a discharge port of the crushing mechanism is fixedly communicated with the material lifting barrel through a discharge pipe, and a filtering and grinding mechanism is arranged on the inner wall of the material lifting barrel. The invention has the beneficial effects that: through rubbing crusher's setting, make this device can high-efficiently accomplish the crushing operation of coal charge, and this device is when crushing operation, and this equipment has increased the clear stifled mechanism when the feeding of 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 important solid fuel, is one of combustible organic rocks, and can be divided into four types, namely peat, lignite, bituminous coal and anthracite, according to the coal gasification degree. The mining sequence refers to the development sequence of the stripping project in the strip stope in time and space. Need use reducing mechanism to smash the bold ore when coal mining, but current reducing mechanism causes the colliery after smashing the completion to block up the unable timely discharge of hole easily when carrying out the smashing, and then influences shredding.
In order to solve the problems in the background art, a patent document with the publication number of CN113304860A discloses a crushing device with an anti-blocking function for coal mining, which enables a crushing cylinder to be stable when placed through the equal-height arrangement of the horizontal heights of two turning plates, and enables an installation block not to swing due to uneven stress when sliding by utilizing the arrangement of two threaded lead screws, so that an anti-blocking head cannot be matched with a penetration hole.
Disclosure of Invention
The invention provides a coal mining crushing system and a crushing process aiming at the technical problems in the prior art, and aims to solve the problems that the existing crushing equipment cannot effectively solve the problem of blockage of coal at a crushing mechanism, and the existing crushing device cannot guarantee the particle size uniformity and the particle fineness of the crushed coal.
The technical scheme for solving the technical problems is as follows: the utility model provides a coal mining crushing system, includes vibration platform, the feeding case is installed to vibration platform's inner wall, broken mechanism is installed to the lower part of feeding case, the interior top fixed mounting of feeding case has can be to broken mechanism direction displacement and the clear stifled mechanism of exerting pressure, vibration platform's inner wall and the position fixed mounting who corresponds feeding case side have the lifting cylinder, fixed intercommunication has the feed back pipe between the relative surface of lifting cylinder and feeding case, the fixed intercommunication of unloading pipe and lifting cylinder is passed through to the one end of broken mechanism discharge gate, the inner wall of lifting cylinder is installed and is strained grinding mechanism, strain grinding mechanism's all sides and be connected with broken mechanism transmission through the belt.
The invention has the beneficial effects that:
1) Through rubbing crusher's setting, make this device can high-efficient accomplish the crushing operation of coal charge, and this device is when crushing operation, and this equipment has increased on traditional crushing apparatus's basis clear stifled mechanism when the feeding of crushing mechanism, when the coal charge takes place the jam in crushing mechanism department, under the effect of transmission lead screw, the appointed stroke of moving down of pressure platform slow speed, high pressure positive blower in the air inlet box is with setting for state output wind pressure, move down appointed stroke back when the pressure platform slow speed, then to blockking up in the coal charge of two crushing roller tops and force the physics extrusion operation, through the extrusion, thereby improve the intensity that the crushing roller acted on the coal charge and the unloading speed of coal charge, through the improvement of above-mentioned intensity and unloading speed, thereby effectively solve the jam problem of coal charge in crushing mechanism department.
2) Through the spiral screen piece, carry a material section of thick bamboo, the setting of interior grinding roller and outer grinding section of thick bamboo, can also carry out the circulation screening and refine the processing to the coal charge after smashing on the basis of realizing coal charge shredding function, in operation, the spiral screen piece can upwards carry the material, upwards carry the material state setting through the spiral screen piece, thereby make the coal charge after the breakage can carry out the screening repeatedly layer upon layer on the spiral screen piece, the coal fines of selecting through the spiral screen piece gets into the crack under the effect of gravity, the buggy gets into to mill the back, then it refines to be milled, the buggy after refining is discharged via hourglass material hole and unloading pipe, through the realization of above-mentioned screening and refining function, thereby effectively guarantee the granularity homogeneity and the crushing effect after the coal charge is smashed.
On the basis of the technical scheme, the invention can be further improved as follows.
Further, broken mechanism includes the broken case with the fixed intercommunication of feeding case, the one end and the fixed intercommunication of unloading pipe of broken case discharge gate, the inner wall of broken case rotates the crushing roller that is connected with two symmetries and sets up, a set of broken tooth that is circumference array distribution is installed to the week side of crushing roller, 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 broken case has broken motor, broken motor's output shaft end and one crushing roller fixed connection, one the week side of crushing roller passes through the belt and strains the transmission of rolling mechanism and be connected.
The beneficial effect who adopts above-mentioned further scheme is that, during the use, broken case is with setting for state output rotational speed, broken motor work back, then drives two crushing rollers and rotate with fast, and when two crushing rollers rotated, revolve to on the contrary, and the crushing roller rotates the back, then carries out broken operation to the coal charge that gets into in the feed box, and broken tooth type on the crushing roller can customize or choose for use according to the actual demand.
Further, strain the grinding mechanism and include respectively with the anti-axle of carrying the coaxial setting of feed cylinder, be fixed in the support and the shell that grinds of feed box side and fixed mounting in carrying the feed cylinder bottom, the inner wall of support rotates the shaft coupling that is connected with the level setting, the week side of shaft coupling passes through the belt and one the crushing roller transmission is connected, week side of anti-axle rotates and is connected with the positive axle, week side of anti-axle and positive axle all is connected with the shaft coupling transmission, week side of positive axle rotates with carrying the feed cylinder and is connected, week side fixed mounting of positive axle has the spiral screen piece, the week side of spiral screen piece rotates with carrying the feed cylinder and laminates, the inner wall of shell rotates and is connected with outer grinding cylinder, the inner wall of outer grinding cylinder rotates and is connected with interior grinding roller, the fixed slot that is provided with between the relative surface of outer grinding cylinder and interior grinding roller, the week side of anti-axle rotates with interior grinding roller and is connected, the bottom and the outer grinding cylinder fixed connection of counter shaft, the bottom and the vertical distribution of the discharge tube that the array was set up with the shell that all sets up the bottom of discharge tube.
The beneficial effect of adopting above-mentioned further scheme is that, after the work of crushing motor, because the shaft coupling makes the transmission be connected with the belt of crushing roller and sets up, the shaft coupling is input power, after the shaft coupling work, then drive counter shaft and positive shaft rotation, the positive shaft is the hollow tubular structure of both ends open-ended, the counter shaft is solid structure, and through the output direction control to crushing motor, make the positive shaft rotate after, the spiral sieve piece can upwards carry the material, set up through the upwards carrying-up state of spiral sieve piece, thereby make the coal charge after the breakage can carry out the repeated screening layer upon layer on the spiral sieve piece, the fine coal that screens through the spiral sieve piece gets into the crack under the effect of gravity, the coal powder gets into after milling, then is milled and refines, the coal powder after refining is discharged through blow-off hole and blanking pipe, after the positive shaft work, then drive the inner roll rotating, after the counter shaft work, then drive the outer milling drum rotating, the width of crack is from top to bottom gradually narrowed.
Furthermore, driven bevel gears are fixedly mounted on the peripheral side surfaces of the reverse shaft and the positive shaft, two driving bevel gears are fixedly mounted on the peripheral side surface of the coupling, the peripheral side surfaces of the two 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 coupling is located as a shaft, and the specifications of the two driven bevel gears are different.
The beneficial effect who adopts above-mentioned further scheme is that, position through two driven bevel gears and shaft coupling sets up to make the rotation of positive axle and counter shaft opposite, through two initiative bevel gear's specification setting, make the rotational speed of positive axle and counter shaft different, through the different settings of the opposite rotational speed of the rotation of positive axle, counter shaft, thereby make interior grinding roller and outer grinding drum be differential antiport state.
Furthermore, sieve pores are uniformly distributed on the surface of the spiral sieve sheet, the sieve pores are circular holes, and the axes of the sieve pores are vertical to the axis of the positive shaft.
Adopt the beneficial effect of above-mentioned further scheme to be, the effect that the sieve mesh set up lies in carrying out the screening operation to the coal charge after taking the breakage, and the coal charge who selects is discharged via the discharge tube under the effect of gravity, and the aperture size of sieve mesh can be customized according to actual demand.
Further, vibration platform includes the vibration frame, the inner wall of vibration frame respectively with broken case and feeding case fixed connection, the bottom surface of vibration frame fixed mounting respectively has vibrating motor and shock attenuation frame, a plurality of regularly distributed's truckle is installed to the bottom surface of shock attenuation frame, the inner wall of shock attenuation frame and correspond the position fixed mounting under the discharge tube and have a hopper, the fixed ejection of compact inclined plane that is provided with in inside of going out the hopper.
The beneficial effect who adopts above-mentioned further scheme is that, when broken motor during operation, vibrating motor is in order to set for state output vibration frequency, behind the vibrating motor output vibration frequency, makes the spiral sieve piece carry out the sieve material operation through the vibration screening principle on the one hand, and on the other hand can improve the flow and the unloading speed of material in the feed box, through the improvement that the coal charge flows in the feed box and unloading speed to effectively improve this rubbing crusher's anti-clogging effect.
Further, clear stifled mechanism includes driving motor, the transmission lead screw of vertical setting, two symmetry settings respectively and all with feeding case sliding connection's baffle and with the air inlet case of the fixed intercommunication of feeding case, 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, two fixed mounting has pressure platform and drive plate respectively between the relative surface of baffle, the inner wall of pressing the platform is seted up a set of ventilative hole that is regular distribution and vertical setting, 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 positive blower that is circumference array distribution.
Adopt above-mentioned further scheme's beneficial effect is, when the coal charge takes place the jam in the top of two crushing rollers, under user's control effect, transmission lead screw drive pressure platform slowly moves down appointed stroke, and the pressure platform moves down behind the appointed stroke to carry out the physics extrusion operation to the coal charge that blocks up in the crushing roller top, through the physics extrusion, thereby improve the contact strength of coal charge and crushing roller, supplementary the unloading speed that improves the coal charge then, thereby avoid the jam of coal charge on the crushing roller.
Further, the drive plate sets up in the top of pressing the platform, press the platform to be the metal material, the sealed pad with feeding case sliding fit is all installed to the both sides of baffle, the one end fixed mounting of air inlet box 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, it seals lower extreme open-ended cavity tubular structure for the top to carry the feed cylinder.
A crushing process of a coal mining crushing system comprises the following steps:
SS001, crushing operation, before the operation, the driving plate is fully lifted upwards, the crushing motor outputs rotating speed with set power, after the crushing motor works, on one hand, the two crushing rollers are driven to rotate, on the other hand, the coupling is driven to rotate, after the coupling rotates, the reverse shaft and the positive shaft are driven to coaxially rotate in a differential speed and reversely rotate, and the spiral sieve sheet is upwards lifted by controlling the output direction of the crushing motor, after the crushing motor works, the vibration motor outputs vibration frequency in a set state, coal materials to be crushed enter the feeding box at a set speed and flow rate, after the coal materials flow into the feeding box, the coal materials flow into the space between the two crushing rollers to be crushed, when the coal materials are excessively accumulated at the crushing rollers or generate blockage, under the action of the transmission screw rod, the specified stroke is moved down slowly to the platen, well high-pressure air fan in the air inlet case exports the wind pressure with the settlement state, after the specified stroke is moved down slowly to the platen, then carry out the physics extrusion operation to the coal charge that blocks up in two crushing roller tops, through the extrusion, thereby improve the intensity that the crushing roller acts on the coal charge and the unloading speed of coal charge, treat that the coal charge that blocks up is cleared up the back, the platen automatic re-sets to initial height, from not influencing the entering of coal charge, the coal charge after the crushing roller is broken gets into the spiral sieve piece and screens, the fine material of selecting gets into and grinds the operation in the crack, the coarse coal charge of selecting then flows back to in the crushing case and carries out cyclic crushing and cyclic screening, until the particle size of coal charge is qualified, the buggy after grinding is discharged via a hopper.
Drawings
FIG. 1 is a schematic diagram of the overall construction of a coal mining comminution system in accordance with the invention;
FIG. 2 is a schematic view of another embodiment of the present invention shown in FIG. 1;
FIG. 3 is an enlarged view of a portion A of FIG. 2;
FIG. 4 is a schematic cross-sectional view of the air inlet box and the driving motor of the present invention;
FIG. 5 is an enlarged view of a portion of FIG. 4 at B according to the present invention;
FIG. 6 is an enlarged partial view of FIG. 4 at C;
FIG. 7 is an enlarged partial schematic view of FIG. 4 at D in accordance with the present invention;
fig. 8 is a schematic structural view of the drive screw and the drive plate of the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1. the device comprises a feeding box, 2, a material lifting barrel, 3, a material return pipe, 4, a discharging pipe, 5, a crushing box, 6, a crushing roller, 7, a coupling 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 screen sheet, 15, an outer grinding drum, 16, an inner grinding roller, 17, a material leaking 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 damping frame, 24, a caster, 25, a discharging hopper, 26, a driving motor, 27, a transmission screw rod, 28, a baffle plate, 29, an air inlet box, 30, a pressing platform, 31, a driving plate, 32 and a ventilation hole.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.
The present invention provides the following preferred embodiments
As shown in fig. 1-8, a coal mining crushing system comprises a vibration platform, wherein a feeding box 1 is installed 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 fixedly mounted on the bottom surface of the vibration frame 21 respectively, and a plurality of casters 24 which are regularly distributed are mounted on the bottom surface of the shock absorption frame 23.
When the crushing motor 8 works, the vibration motor 22 outputs vibration frequency in a set state, and after the vibration motor 22 outputs the vibration frequency, on one hand, the spiral sieve pieces 14 can carry out sieving operation through a vibration screening principle, on the other hand, the flowing and discharging speed of the materials in the feeding box 1 can be improved, and through the improvement of the flowing and discharging speed of the coal materials in the feeding box 1, the anti-blocking effect of the crusher is effectively improved;
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 vibrating frame 21 is fixedly connected with the crushing box 5 and the feeding box 1 respectively;
the inner wall of crushing case 5 rotates and is connected with crushing roller 6 that two symmetries set up, and a set of broken tooth that is circumference array distribution is installed to the side all around of crushing roller 6, and the equal fixed mounting of tail end of two crushing rollers 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 crushing motor 8's output axle head and a crushing roller 6 fixed connection, and the side all around of a crushing roller 6 passes through the belt and strains the drive connection of grinding mechanism.
When the coal crushing device is used, the crushing box 5 outputs the rotating speed in a set state, the two crushing rollers 6 are driven to rotate at the same speed after the crushing motor 8 works, the rotating directions of the two crushing rollers 6 are opposite when the two crushing rollers 6 rotate, the crushing rollers 6 rotate, then the coal entering the feeding box 1 is crushed, and the types of the crushing teeth on the crushing rollers 6 can be customized or selected according to actual requirements;
a blockage clearing mechanism capable of displacing towards the crushing mechanism and applying pressure is fixedly arranged at the inner top of the feeding box 1;
the blockage removing mechanism comprises a driving motor 26, a vertically arranged transmission screw rod 27, two symmetrically arranged baffle plates 28 which are in sliding connection with the feeding box 1 and an air inlet box 29 fixedly communicated with the feeding box 1, and sealing gaskets in sliding fit with the feeding box 1 are arranged on two sides of each baffle plate 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 platform 30 and a driving plate 31 are respectively and fixedly arranged between the opposite surfaces of the two baffles 28, the driving plate 31 is arranged above the pressing platform 30, the pressing platform 30 is made of metal material,
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 a drive plate 31, the inner wall of the air inlet box 29 is fixedly provided with a group of high-pressure fans which are distributed in a circumferential array, one end of an air inlet of the air inlet box 29 is fixedly provided with a filter screen, and the filter screen is arranged to filter and intercept impurities in inlet air in the air inlet process;
when the coal material takes place blocking phenomenon in the top of two crushing rollers 6, under user's control effect, transmission lead screw 27 drive is pressed platform 30 and is slowly moved down appointed stroke, presses platform 30 to move down behind the appointed stroke to carry out the physics extrusion operation to the coal material of blockking up in crushing roller 6 top, through the physics extrusion, thereby improve the contact strength of coal material and crushing roller 6, supplementary unloading speed that improves the coal material then, thereby avoid the jam of coal material on crushing roller 6.
A material lifting cylinder 2 is fixedly arranged on the inner wall of the vibration platform and corresponds to the side of the feeding box 1, a material return pipe 3 is fixedly communicated between the material lifting cylinder 2 and the opposite surface of the feeding box 1, one end of a discharge port of the crushing mechanism is fixedly communicated with the material lifting cylinder 2 through a material discharging pipe 4, one end of a discharge port of the crushing box 5 is fixedly communicated with the material discharging pipe 4, the material return pipe 3 and the material discharging pipe 4 are both obliquely arranged, and the material lifting cylinder 2 is of a hollow cylindrical structure with a closed top end and an open lower end;
the inner wall of the material lifting barrel 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-roller mechanism includes respectively with the anti-axle 9 of the coaxial setting of lifting cylinder 2, be fixed in support 10 and the shell mill 11 of fixed mounting in lifting cylinder 2 bottom of feeding box 1 side of feeding box 1, the inner wall of support 10 rotates and is connected with the shaft coupling 12 that the level set up, the week side of shaft coupling 12 is connected with a crushing roller 6 transmission through the belt, the week side of anti-axle 9 rotates and is connected with positive axle 13, the week side of anti-axle 9 and positive axle 13 all is connected with shaft coupling 12 transmission, the week side of positive axle 13 rotates with lifting cylinder 2 and is connected, the week side fixed mounting of positive axle 13 has spiral screen piece 14, the week side of spiral screen piece 14 rotates with lifting cylinder 2 and laminates, the inner wall of shell mill 11 rotates and is connected with outer roller 15, the inner wall of outer roller 15 rotates and is connected with interior roller 16, the fixed being provided with the crack between the relative surface of outer roller 15 and interior roller 16, the leak source terminal of anti-axle 9 rotates with interior roller 16 and is connected, the bottom end of the shell mill 16 is connected with the fixed discharge chute that the fixed array of discharge tube 11 and the inner wall that the fixed mounting has the discharge tube 17 that the fixed mounting has the fixed discharge hole that the fixed array was set up and the inner wall that the discharge tube 18 and the fixed mounting had just discharge chute that the fixed mounting had just set up the inside discharge hopper 17 that the discharge tube that the fixed mounting had the fixed mounting was equipped with the fixed mounting of the discharge tube that the fixed mounting was equipped with the bottom that the fixed mounting was just.
After the crushing motor 8 works, the coupling 12 is connected with the belt of the crushing roller 6 to enable transmission to be arranged, the coupling 12 is input with power, after the coupling 12 works, the reverse shaft 9 and the forward shaft 13 are driven to rotate, the forward shaft 13 is of a hollow tubular structure with two open ends, the reverse shaft 9 is of a solid structure, the forward shaft 13 is driven to rotate by controlling the output direction of the crushing motor 8, the spiral sieve piece 14 can lift materials upwards after the forward shaft 13 rotates, the crushed coal materials can be repeatedly screened layer by layer on the spiral sieve piece 14 through the upward lifting state of the spiral sieve piece 14, the fine coal screened by the spiral sieve piece 14 enters a grinding gap under the action of gravity, the pulverized coal enters the grinding gap and is ground and refined, the refined pulverized coal is discharged through the material leakage hole 17 and the discharging pipe 4, after the forward shaft 13 works, the inner grinding roller 16 is driven to rotate, after the reverse shaft 9 works, the outer grinding cylinder 15 is driven to rotate, and the width of the grinding gap is gradually narrowed from top to bottom.
The rotation directions of the front shaft 13 and the reverse shaft 9 are opposite to each other by the positions of the two driven bevel gears 19 and the coupling 12, the rotation speeds of the front shaft 13 and the reverse shaft 9 are different by the specifications of the two drive bevel gears 20, and the rotation speeds of the front shaft 13 and the reverse shaft 9 are opposite to each other, so that the inner grinding roller 16 and the outer grinding drum 15 are in a differential reverse rotation state.
Sieve pores are uniformly distributed on the surface of the spiral sieve piece 14, the sieve pores are circular holes, and the axes of the sieve pores are vertical to the axis of the positive shaft 13.
The effect that the sieve mesh set up lies in treating the coal charge after the breakage and carries out the screening operation, and the coal charge 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, the driving plate 31 is fully lifted upwards, the crushing motor 8 outputs rotating speed with set power, after the crushing motor 8 works, on one hand, the two crushing rollers 6 are driven to rotate, on the other hand, the coupling 12 is driven to rotate, after the coupling 12 rotates, the reverse shaft 9 and the positive shaft 13 are driven to coaxially rotate in a differential speed reverse direction, and the spiral sieve piece 14 is lifted upwards by controlling the output direction of the crushing motor 8, after the crushing motor 8 works, the vibration motor 22 outputs vibration frequency in a set state, coal materials to be crushed enter the feeding box 1 at a set speed and flow rate, the coal materials flow into the feeding box 1 and then flow into the two crushing rollers 6 for crushing operation, when the coal materials are excessively accumulated at the crushing rollers 6 or generate blockage, under the action of the transmission screw rod 27, the specified stroke that moves down slowly of platen 30, the well high-pressure fan in air inlet box 29 exports the wind pressure with the settlement state, after the specified stroke that moves down slowly of platen 30, then carry out the physical extrusion operation to the coal charge that blocks up in two crushing rollers 6 tops, through the extrusion, thereby improve the intensity that crushing roller 6 acts on the coal charge and the unloading speed of coal charge, treat that the coal charge that blocks up is cleared up the back, platen 30 automatic re-sets to initial height, thereby do not influence the entering of coal charge, the coal charge after the crushing roller 6 breakage gets into spiral sieve piece 14 and carries out the screening, the fine material of selecting gets into the crack and carries out the operation of milling, the coarse coal charge of selecting then flows back to and carries out circulation breakage and circulation screening in crushing box 5, until the particle size of coal charge is qualified, the buggy after milling is discharged via play hopper 25.
To sum up: the invention has the advantages that
Through rubbing crusher's setting, make this device can high-efficient accomplish the crushing operation of coal charge, and this device is when crushing operation, and this equipment has increased on traditional crushing apparatus's basis clear stifled mechanism when the feeding of crushing mechanism, when the coal charge takes place the jam in crushing mechanism department, under the effect of transmission lead screw, the appointed stroke of moving down of pressure platform slow speed, high pressure positive blower in the air inlet box is with setting for state output wind pressure, move down appointed stroke back when the pressure platform slow speed, then to blockking up in the coal charge of two crushing roller tops and force the physics extrusion operation, through the extrusion, thereby improve the intensity that the crushing roller acted on the coal charge and the unloading speed of coal charge, through the improvement of above-mentioned intensity and unloading speed, thereby effectively solve the jam problem of coal charge in crushing mechanism department.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent replacements, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a coal mining crushing system, includes vibration platform, its characterized in that, feeding case (1) is installed to vibration platform's inner wall, broken 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 broken mechanism direction and exert pressure, vibration platform's inner wall and the position fixed mounting who corresponds feeding case (1) side have lifting cylinder (2), the inner wall of lifting cylinder (2) is installed and is strained and grind the mechanism, strain and grind the week side of mechanism and pass through the belt and be connected with broken mechanism transmission.
2. A coal mining crushing system according to claim 1, characterised in that a feed return pipe (3) is fixedly communicated between the opposite surfaces of the material lifting barrel (2) and the feed box (1), and one end of the discharge port of the crushing mechanism is fixedly communicated with the material lifting barrel (2) through a discharge pipe (4).
3. The coal mining crushing system according to claim 2, wherein 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 the blanking pipe (4), the inner wall of the crushing box (5) is rotatably connected with two symmetrically arranged crushing rollers (6), a group of crushing teeth distributed in a circumferential array are installed on the circumferential side surface of each crushing roller (6), two connecting teeth (7) are fixedly installed at the tail ends of the two crushing rollers (6), the two connecting teeth (7) are meshed with each other, and a crushing motor (8) is fixedly installed on the side surface of the crushing box (5).
4. A coal mining crushing system according to claim 3, wherein the output shaft end of the crushing motor (8) is fixedly connected with the crushing roller (6), and the peripheral side surface of the crushing roller (6) is in transmission connection with the filtering and grinding mechanism through a belt; the filter-rolling mechanism respectively comprises a reverse shaft (9) coaxially arranged with a material lifting cylinder (2), a support (10) fixed on the side of the feeding box (1) and a grinding shell (11) fixedly arranged at the bottom end of the material lifting cylinder (2), the inner wall of the support (10) is connected with a coupling (12) horizontally arranged in a rotating way, the peripheral side of the coupling (12) is connected with a crushing roller (6) in a transmission way, the peripheral side of the reverse shaft (9) is connected with a front shaft (13) in a rotating way, the peripheral side of the reverse shaft (9) and the front shaft (13) is connected with the coupling (12) in a transmission way, the peripheral side of the front shaft (13) is connected with the material lifting cylinder (2) in a rotating way, a spiral screen sheet (14) is fixedly arranged on the peripheral side of the front shaft (13), the peripheral side of the spiral screen sheet (14) is attached with the material lifting cylinder (2) in a rotating way, the inner wall of the grinding shell (11) is connected with an outer grinding cylinder (15), the inner wall of the outer grinding cylinder (15) is connected with an inner fixed roller (16) and the inner side of the inner grinding roller (9) is connected with the inner fixed side of the inner grinding shell (16) and the outer grinding roller (13) and the inner side of the inner grinding shell (16) is connected with the inner side of the inner grinding cylinder (16), the bottom ends of the outer grinding drum (15) and the grinding shell (11) are respectively provided with a group of material leaking holes (17) which are distributed in a circumferential array and are vertically arranged, and the bottom end of the grinding shell (11) is fixedly provided with a discharging pipe (18) matched with the material leaking holes (17); the side surfaces of the reverse shaft (9) and the positive shaft (13) are fixedly provided with driven bevel gears (19), the side surfaces of the coupling (12) are fixedly provided with two driving bevel gears (20), the side surfaces of the driving bevel gears (20) are respectively meshed with the two driven bevel gears (19), the driven bevel gears (19) are symmetrically arranged by taking the horizontal plane of the axis of the coupling (12) as a shaft, and the specifications of the driven bevel gears (19) are different.
5. A coal mining crushing system according to claim 3, wherein the spiral screen sheet (14) is provided with holes on the surface, the holes are circular holes, and the axes of the holes are perpendicular to the axis of the positive shaft (13).
6. A coal mining comminution system as claimed in claim 2 in which the vibration platform includes a vibration cage (21), the inner walls of the vibration cage (21) being fixedly connected to the crushing bin (5) and the feed bin (1) respectively.
7. The coal mining crushing system according to claim 6, wherein a vibration motor (22) and a shock absorption frame (23) are fixedly installed on the bottom surface of the vibration frame (21), a plurality of casters (24) which are regularly distributed are installed on the bottom surface of the shock absorption frame (23), a discharge hopper (25) is fixedly installed on the inner wall of the shock absorption frame (23) and corresponds to a position right below the discharge pipe (18), and a discharge inclined surface is fixedly arranged inside the discharge hopper (25);
clear stifled mechanism includes driving motor (26), the transmission lead screw (27) of vertical setting, two symmetry settings respectively and all with feeding case (1) sliding connection's baffle (28) and with feeding case (1) fixed intercommunication air inlet case (29), the week side of transmission lead screw (27) rotates with feeding case (1) to be connected, the output axle head of driving motor (26) passes through the belt and is connected, two fixed mounting has pressure platform (30) and drive plate (31) respectively between the relative surface of baffle (28), the inner wall of pressing platform (30) is seted up a set of ventilative hole (32) that are regular distribution and vertical setting, the week side of transmission lead screw (27) is connected with drive plate (31) transmission, the inner wall fixed mounting of air inlet case (29) has a set of high pressure positive blower that is circumference array distribution.
8. The coal mining crushing system according to claim 7, wherein the driving plate (31) is arranged above the pressing table (30), the pressing table (30) is made of metal, sealing gaskets in sliding fit with the feeding box (1) are arranged on two sides of the baffle plate (28), and a filtering net is fixedly arranged at one end of an air inlet of the air inlet box (29).
9. The coal mining crushing system according to claim 2, wherein a feeding hole is fixedly formed in the surface of the feeding box (1), the feed back pipe (3) and the feed down pipe (4) are obliquely arranged, and the material lifting barrel (2) is of a hollow cylindrical structure with a closed top end and an open lower end.
10. A coal mining comminution process as claimed in any one of claims 3 to 9 including the steps of:
crushing, wherein before the operation, the driving plate (31) is fully lifted upwards, the crushing motor (8) outputs rotating speed at set power, after the crushing motor (8) works, on one hand, the two crushing rollers (6) are driven to rotate, on the other hand, the coupling (12) is driven to rotate, after the coupling (12) rotates, the counter shaft (9) and the positive shaft (13) are driven to coaxially rotate in a differential speed reverse direction, the spiral sieve piece (14) is lifted upwards by controlling the output direction of the crushing motor (8), and after the crushing motor (8) works, the vibration motor (22) outputs vibration frequency at a set state;
coal materials to be crushed enter a feeding box (1) at a set speed and flow, the coal materials flow into the feeding box (1) and then flow into a space between two crushing rollers (6) to be crushed, when the coal materials are excessively accumulated at the crushing rollers (6) or are blocked, a pressing table (30) moves downwards at a slow speed for a designated stroke under the action of a transmission screw rod (27), a medium-high pressure fan in an air inlet box (29) outputs air pressure at a set state, after the pressing table (30) moves downwards at the slow speed for the designated stroke, the coal materials blocked above the two crushing rollers (6) are subjected to physical extrusion operation, the intensity of the crushing rollers (6) 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 (30) automatically resets to an initial height, so that the entering of the coal materials is not influenced, the coal materials crushed by the crushing rollers (6) enter a spiral screen sheet (14) to be crushed, fine materials are screened to enter a grinding gap, coarse coal box grinding operation, pulverized coal is recycled to be crushed until the qualified coal materials are discharged, and pulverized coal particles are discharged through a circulating screening hopper (25).
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| CN116921040A (en) * | 2023-08-01 | 2023-10-24 | 江苏师范大学 | Pulverizer for mineral aggregate treatment |
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| Publication number | Publication date |
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| CN115646586B (en) | 2023-10-24 |
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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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