CN110624850B - Automatic sorting device for lump coal and large gangue - Google Patents
Automatic sorting device for lump coal and large gangue Download PDFInfo
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- CN110624850B CN110624850B CN201911031846.0A CN201911031846A CN110624850B CN 110624850 B CN110624850 B CN 110624850B CN 201911031846 A CN201911031846 A CN 201911031846A CN 110624850 B CN110624850 B CN 110624850B
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- sweeping
- carding mechanism
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- 239000003245 coal Substances 0.000 title claims abstract description 64
- 239000000463 material Substances 0.000 claims abstract description 154
- 238000009960 carding Methods 0.000 claims abstract description 67
- 238000001514 detection method Methods 0.000 claims abstract description 36
- 238000007664 blowing Methods 0.000 claims abstract description 29
- 238000012216 screening Methods 0.000 claims abstract description 28
- 238000003860 storage Methods 0.000 claims abstract description 19
- 230000007246 mechanism Effects 0.000 claims description 56
- 238000010408 sweeping Methods 0.000 claims description 46
- 238000003825 pressing Methods 0.000 claims description 45
- 238000003892 spreading Methods 0.000 claims description 30
- 230000007480 spreading Effects 0.000 claims description 30
- 238000007599 discharging Methods 0.000 claims description 7
- 230000008054 signal transmission Effects 0.000 claims description 4
- 238000007873 sieving Methods 0.000 claims 2
- 230000008901 benefit Effects 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000004484 Briquette Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 2
- 239000000571 coke Substances 0.000 description 2
- 238000004939 coking Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 208000003464 asthenopia Diseases 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/02—Measures preceding sorting, e.g. arranging articles in a stream orientating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/34—Sorting according to other particular properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/36—Sorting apparatus characterised by the means used for distribution
- B07C5/363—Sorting apparatus characterised by the means used for distribution by means of air
- B07C5/367—Sorting apparatus characterised by the means used for distribution by means of air using a plurality of separation means
Landscapes
- Sorting Of Articles (AREA)
Abstract
The invention discloses an automatic sorting device for lump coal and large gangue, which comprises an industrial personal computer, a controller, a raw coal hopper screening device, a sorting conveying belt, a queuing device, a density detection device, a blowing type material classification unit and a material classification temporary storage unit; the screening device is arranged at the feed opening of the raw coal hopper, and the output short end of the screening device corresponds to the input end of the sorting conveying belt; the queuing device is used for carding the thickness of the material conveyed by the sorting conveyor belt, and the density detection device is used for detecting the density of the carded material on the sorting conveyor belt; the materials output from the output end of the conveying belt are classified and screened by blowing through a blowing type material classification unit and are temporarily stored in a material classification temporary storage unit. The automatic sorting device for the lump coal gangue realizes automatic sorting of the lump gangue in the lump coal, and improves the product quality.
Description
Technical Field
The invention belongs to the technical field of coal identification and separation, and particularly relates to an automatic separation device for lump coal and massive gangue.
Background
At present, gangue sorting in coal preparation plants is mainly performed by manual gangue sorting, and the method has the following defects:
1. because the gangue is mixed in the coal briquette, the surface color is close to that of the coal briquette, visual fatigue is easy to occur during long-time manual sorting, and the gangue is not easy to be completely sorted out;
2. because the gangue is required to be sorted out on the belt, the field working environment is poor, and the labor intensity is high;
3. the gangue cannot be completely sorted out, and the influence on the coal quality is caused;
4. The service life of subsequent lump coal crushing equipment is influenced, the production cost is increased, and the enterprise benefit is influenced.
Disclosure of Invention
The invention aims to: in order to overcome the defects in the prior art, the invention provides the automatic sorting device for the large gangue blocks of the lump coal, so that the automatic sorting of the large gangue blocks in the lump coal is realized, and the product quality is improved.
The technical scheme is as follows: in order to achieve the aim, the automatic sorting device for the lump coal gangue comprises an industrial personal computer and a controller, wherein the industrial personal computer is in signal transmission connection with the controller;
the device comprises a raw coal hopper, a screening device and a sorting conveying belt, wherein the raw coal hopper is used for controlling the discharging through a controller, the screening device is arranged at a discharging opening of the raw coal hopper, and the output short end of the screening device corresponds to the input end of the sorting conveying belt;
The sorting device is used for sorting materials conveyed by the sorting conveyor belt, the density detection device is used for detecting the density of the sorted materials, and a signal transmitting end of the density detection device is connected with a signal receiving end of the controller;
The device comprises a controller, a sorting conveyor belt, a blowing type material sorting unit and a material sorting temporary storage unit, wherein the blowing type material sorting unit and the material sorting temporary storage unit are arranged at the output end of the sorting conveyor belt, the blowing type material sorting unit controls blowing, and materials output from the output end of the conveyor belt pass through the blowing type material sorting unit to be subjected to blowing sorting screening and temporarily stored in the material sorting temporary storage unit.
Further, the queuing device comprises a U-shaped groove, a material height detection device arranged in the U-shaped groove and a material thickness carding mechanism arranged in the U-shaped groove; the U-shaped groove is fixedly arranged on a frame of the sorting conveying belt and is arranged in a way of covering the sorting conveying belt; the material height detection device is used for detecting the height of the materials conveyed on the sorting conveying belt and transmitting the detection result to the controller; and the controller judges whether to control the material thickness carding mechanism to carry out material thickness carding operation according to the detection result.
Further, the material thickness carding mechanism comprises a material pressing vibration carding mechanism and a material horizontal pushing, sweeping, spreading and carding mechanism; the material pushing vibration carding mechanism pushes down and vibrates materials on the sorting conveying belt to reduce the thickness of the materials, the material pushing sweeping and spreading carding mechanism pushes the materials on the sorting conveying belt horizontally and spreads the materials in a fan shape to reduce the thickness of the materials, and the pushing direction of the material pushing sweeping and spreading carding mechanism pushes the materials horizontally and the conveying direction of the sorting conveying belt is opposite.
Further, the material pressing vibration carding mechanism comprises a pressing plate, a vibrating rod, a pressing plate connecting part and a hydraulic cylinder; the pressing plate is horizontally arranged across the sorting conveying belt; the vibrating rods are vertically distributed on the lower plate surface of the pressing plate; the hydraulic cylinder is vertically downwards arranged at the bottom of the U-shaped groove, and the pressing plate is fixedly connected with the telescopic end of the hydraulic cylinder through the pressing plate connecting part; the pressing plate is driven by the hydraulic cylinder to drive the vibrating rods to synchronously move downwards, the pressing plate presses down the materials on the sorting conveying belt, and the vibrating rods are inserted into the materials on the sorting conveying belt;
The material horizontal pushing, sweeping, spreading and carding mechanism comprises a push plate, an air cylinder, a sweeping, carding mechanism connecting part and a sweeping, carding mechanism; the pushing plate stretches across the sorting conveying belt and is vertically arranged on one side, opposite to the material conveying direction of the sorting conveying belt, of the pressing plate, and the bottom end of the pushing plate is kept level with the lower plate surface of the pressing plate; the air cylinder is fixedly arranged on the upper plate surface of the pressing plate and is in driving connection with the push plate, and the sweeping and carding mechanism is arranged on one side, facing the material conveying direction of the sorting conveying belt, of the push plate through a sweeping and carding mechanism connecting part; the pushing plate drives the sweeping and spreading and carding mechanism to synchronously translate along the opposite direction of the material conveying direction of the sorting conveying belt through the driving of the air cylinder, the pushing plate horizontally pushes the material on the sorting conveying belt, and the sweeping and spreading and carding mechanism scans the material on the sorting conveying belt in a fan shape;
the sweeping, spreading and carding mechanism comprises a servo motor and a sweeping and spreading rod connected with the servo motor in a driving mode, the lowest end of the rod portion of the sweeping and spreading rod is kept flush with the lower plate surface of the pressing plate, and the radian of a fan-shaped sweeping and spreading outline formed by the rotation of the sweeping and spreading rod in a driving mode of the servo motor is 180 degrees.
Further, the material height detection device comprises an infrared emitter and an infrared receiver which are correspondingly arranged on the inner wall of the U-shaped groove, and a signal transmitting end of the infrared receiver is connected with a signal receiving end of the controller; the vibrating rod, the hydraulic cylinder, the air cylinder and the servo motor are controlled by the controller.
Further, the blowing type material classifying unit comprises a downward inclined high-pressure air gun and a horizontal high-pressure air gun; the lower inclined high-pressure air gun forms an obtuse angle with the horizontal sorting conveying belt and is arranged obliquely above the output end of the sorting conveying belt, and the air blowing direction of the lower inclined high-pressure air gun faces the material sorting temporary storage unit; the horizontal high-pressure air gun is arranged below the sorting conveying belt, and the air blowing direction of the horizontal high-pressure air gun is in the same direction as the conveying direction of the sorting conveying belt and faces the material sorting temporary storage unit;
the material classifying temporary storage unit comprises a gangue hopper, a clean coal hopper and a middling hopper which are sequentially arranged side by side along the conveying direction of the sorting conveying belt; the height of a port on one side of the middle coal hopper far away from the horizontal high-pressure air gun is higher than that of the horizontal high-pressure air gun;
the blanking mouth, the downtilt high-pressure air gun and the horizontal high-pressure air gun of the raw coal hopper are respectively provided with an electromagnetic valve, and all the electromagnetic valves are controlled to be opened and closed by the controller.
Further, the device also comprises a chute and a non-sorting conveying belt, wherein the chute corresponds to the screening hole area of the screening device, and the output end of the chute corresponds to the input end of the non-sorting conveying belt.
Further, the screening holes of the screening device have a pore diameter of 50mm.
The beneficial effects are that: the automatic sorting device for the lump coal and the large gangue has the following beneficial effects:
1) After the materials pass through the screening device, the queuing device and the density detection device, the materials are divided into different products by a high-pressure air gun, so that the efficiency is high, and the data acquisition is timely, accurate and comprehensive;
2) Greatly improves the quality of coking coal, reduces the influence of gangue on a crushing device, improves the quality of coke and increases the production benefit;
3) Greatly improves the working environment, reduces the manual working strength and reduces the manual investment.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a side view of a queuing apparatus;
FIG. 3 is a front view of a queuing apparatus;
FIG. 4 is a schematic diagram of the structure of the material height detecting device and the material thickness carding mechanism;
FIG. 5 is a schematic diagram II of the material height detection device and the material thickness carding mechanism;
fig. 6 is a top view of the material thickness carding mechanism in a material thickness carding state.
Detailed Description
The invention will be further described with reference to the accompanying drawings.
As shown in figure 1, the automatic sorting device for the lump coal gangue comprises an industrial personal computer 1 and a controller 2, wherein the industrial personal computer 1 is in signal transmission connection with the controller 2; the device comprises a raw coal hopper 3, a screening device 4 and a sorting conveying belt 5, wherein the raw coal hopper 3 is used for controlling the discharging through the controller 2, the screening device 4 is arranged at a discharging opening of the raw coal hopper 3, and the output short end of the screening device 4 corresponds to the input end of the sorting conveying belt 5; the sorting device further comprises a queuing device 6 and a density detection device 7 which are sequentially arranged along the conveying direction of the sorting conveying belt 5, wherein the queuing device 6 is used for carrying out thickness carding on materials conveyed by the sorting conveying belt 5, the density detection device 7 is used for carrying out density detection on the carded materials on the sorting conveying belt 5, and a signal transmitting end of the density detection device 7 is connected with a signal receiving end of the controller 2; the device is characterized by further comprising an air blowing type material classification unit 8 and a material classification temporary storage unit 9, wherein the air blowing type material classification unit 8 is arranged at the output end of the sorting conveying belt 5, air blowing is controlled by the air blowing type material classification unit 8, and materials output from the output end of the conveying belt 5 are subjected to air blowing classification screening through the air blowing type material classification unit 8 and temporarily stored in the material classification temporary storage unit 9.
The device further comprises a chute 10 and a non-sorting conveying belt 11, wherein the chute 10 corresponds to a screening hole area of the screening device 4, and the output end of the chute 10 corresponds to the input end of the non-sorting conveying belt 11; the aperture of the screening hole of the screening device 4 is 50mm, raw coal can be screened into two parts of more than or equal to 50mm and less than 50mm, the part of more than or equal to 50mm enters the sorting conveyor belt 5, and the part of less than 50mm is transported to the non-sorting conveyor belt 11 to the next working section through the chute 10.
As shown in fig. 2 to 6, the queuing device 6 comprises a U-shaped groove 61, a material height detection device 62 arranged in the U-shaped groove 61 and a material thickness carding mechanism 63 arranged in the U-shaped groove 61; the U-shaped groove 61 is fixedly arranged on the frame 51 of the sorting conveyor belt 5 and is arranged for covering the sorting conveyor belt 5; the material height detection device 62 is used for detecting the height of the materials conveyed on the sorting conveyor belt 5 and transmitting the detection result to the controller 2; the controller 2 judges whether to control the material thickness carding mechanism 63 to carry out the material thickness carding operation according to the detection result. The automatic queuing and carding of the materials on the sorting conveyor belt 5 is realized, the orderly carrying of the material conveying is ensured, the blockage is avoided, the density detection of the materials on the sorting conveyor belt 5 by using the density detection device 7 is more convenient, and the accuracy of the density detection is improved.
The material thickness carding mechanism 63 comprises a material pressing vibration carding mechanism 631 and a material horizontal pushing, sweeping, spreading and carding mechanism 632; the material pushing vibration carding mechanism 631 pushes down and vibrates to cut down the thickness of the material on the sorting conveyor belt 5, the material horizontal pushing sweeping and spreading carding mechanism 632 pushes down and spreads the material on the sorting conveyor belt 5 in a fan-shaped mode to cut down the thickness of the material, and the horizontal pushing direction of the material horizontal pushing sweeping and spreading carding mechanism 632 pushes the material in the opposite direction to the conveying direction of the sorting conveyor belt 5. In the invention, the material is pressed down firstly, the thickness is reduced, and the vibration mode is increased in the pressing down process, thereby being more beneficial to the pressing down and reducing operation of the material; and then the extruded and accumulated materials are subjected to spreading, the thickness is further reduced, and a spreading mode is additionally arranged in the pushing process, so that the pushing and cutting operation of the materials is facilitated. The material thickness carding machine is thorough and comprehensive in material thickness carding, good in effect and high in efficiency.
Wherein the material pressing vibration carding mechanism 631 comprises a pressing plate 6311, a vibrating rod 6312, a pressing plate connecting part 6313 and a hydraulic cylinder 6314; the pressing plate 6311 is horizontally disposed across the sorting conveyor belt 5; the plurality of vibrating bars 6312 are vertically distributed on the lower plate surface of the pressing plate 6311; the hydraulic cylinder 6314 is vertically downward arranged at the bottom of the U-shaped groove 61, and the pressing plate 6311 is fixedly connected with the telescopic end of the hydraulic cylinder 6314 through the pressing plate connecting part 6313; the pressing plate 6311 is driven by the hydraulic cylinder 6314 to drive the vibrating rod 6312 to synchronously move downwards, the pressing plate 6311 presses down the materials on the sorting conveyor belt 5, and the vibrating rod 6312 is inserted into the materials on the sorting conveyor belt 5;
Wherein the material horizontal pushing, sweeping, spreading and carding mechanism 632 comprises a push plate 6321, an air cylinder 6322, a sweeping, carding mechanism connecting part 6323 and a sweeping, carding mechanism 6324; the push plate 6321 is vertically arranged across the sorting conveyor belt 5 and is arranged on one side of the pressing plate 6311, which is opposite to the material conveying direction of the sorting conveyor belt 5, and the bottom end of the push plate 6321 is kept level with the lower plate surface of the pressing plate 6311; the air cylinder 6322 is fixedly arranged on the upper plate surface of the pressing plate 6311 and is in driving connection with the pushing plate 6321, and the sweeping and carding mechanism 6324 is arranged on one side, facing the material conveying direction of the sorting conveying belt 5, of the pushing plate 6321 through the sweeping and carding mechanism connecting part 6323; the pushing plate 6321 is driven by the air cylinder 6322 to drive the sweeping and carding mechanism 6324 to synchronously translate along the opposite direction of the material conveying direction of the sorting conveying belt 5, the pushing plate 6321 horizontally pushes the material on the sorting conveying belt 5, and the sweeping and carding mechanism 6324 scans and spreads the material on the sorting conveying belt 5 in a fan shape;
More specifically, the sweeping and carding mechanism 6324 includes a servo motor 63241 and a sweeping and spreading rod 63242 in driving connection with the servo motor 63241, the lowest end of the rod portion of the sweeping and spreading rod 63242 is kept flush with the lower plate surface of the pressing plate 6311, and the radian of a fan-shaped sweeping and spreading contour formed by driving the sweeping and spreading rod 63242 to rotate by the servo motor 63241 is 180 °.
The material height detection device 62 comprises an infrared emitter 621 and an infrared receiver 622 which are correspondingly arranged on the inner wall of the U-shaped groove 61, and the signal transmitting end of the infrared receiver 622 is connected with the signal receiving end of the controller 2; the vibration bar 6312, the hydraulic cylinder 6314, the air cylinder 6322, and the servo motor 63241 are controlled by the controller 2. The infrared emitter 621 emits infrared rays and is received by the infrared receiver 622, when the thickness of the material on the sorting conveyor belt 5 is thicker, the infrared rays are shielded, so that the infrared receiver 622 cannot receive the infrared rays, at this time, the infrared receiver 622 sends a signal to the controller 2, and the controller 2 controls the material thickness carding mechanism 63 to carry out material thickness carding operation, which comprises the following specific steps:
Step one: the vibrating rod 6312 starts vibrating, then the hydraulic cylinder 6314 drives the pressing plate 6311 to drive the vibrating rod 6312 to synchronously move downwards, the pressing plate 6311 presses down the materials on the sorting conveyor belt 5, and the vibrating rod 6312 is inserted into the materials on the sorting conveyor belt 5;
Step two: the servo motor 63241 is started, then, the air cylinder 6322 drives the push plate 6321 to drive the sweeping and carding mechanism 6324 to synchronously translate along the opposite direction of the material conveying direction of the sorting conveying belt 5, the push plate 6321 horizontally pushes the material on the sorting conveying belt 5, and the servo motor 63241 drives the sweeping and spreading rod 63242 to rotate to sweep and spread the material in a fan-shaped sweeping and spreading contour circulation with the radian of 180 degrees.
As shown in fig. 1, the blowing type material classifying unit 8 includes a lower inclined high pressure air gun 81 and a horizontal high pressure air gun 82; the lower inclined high-pressure air gun 81 forms an obtuse angle with the horizontal sorting conveyor belt 5 and is arranged obliquely above the output end of the sorting conveyor belt 5, and the air blowing direction of the lower inclined high-pressure air gun 81 faces the material sorting temporary storage unit 9; the horizontal high-pressure air gun 82 is arranged below the sorting conveying belt 5, and the air blowing direction of the horizontal high-pressure air gun 82 is the same as the conveying direction of the sorting conveying belt 5 and faces the material sorting temporary storage unit 9; the material classification temporary storage unit 9 comprises a gangue hopper 91, a clean coal hopper 92 and a middling hopper 93 which are sequentially arranged side by side along the conveying direction of the separation conveying belt 5. The blanking mouth, the lower inclined high-pressure air gun 81 and the horizontal high-pressure air gun 82 of the raw coal hopper 3 are respectively provided with electromagnetic valves 12, and all the electromagnetic valves 12 are controlled to be opened and closed by the controller 2.
The density detection device 7 outputs the gangue, middling coal and clean coal into three signals according to the absorption coefficient, the gangue signals are transmitted to the electromagnetic valve 12 on the lower inclined high-pressure air gun 81 through the controller 2, when the gangue signals exist, the electromagnetic valve 12 is instantaneously opened, the lower inclined high-pressure air gun 81 emits high-pressure air flow to blow the gangue in the raw coal into the corresponding gangue hopper 91, and no gangue signals instantaneously close the electromagnetic valve 12; the medium coal signal is transmitted to the electromagnetic valve 12 on the horizontal high-pressure air gun 82 through the controller 2, when the medium coal signal exists, the electromagnetic valve 12 is opened instantly, the horizontal high-pressure air gun 82 shoots high-pressure air flow to blow the medium coal in the raw coal into the corresponding medium coal hopper 93, and the electromagnetic valve 12 is closed instantly when no medium coal signal exists; when the coal is clean coal, no signal transmission exists, the electromagnetic valve 12 on the lower inclined high-pressure air gun 81 and the electromagnetic valve 12 on the horizontal high-pressure air gun 82 are closed instantaneously, and the pressure of the lower inclined high-pressure air gun 81 and the pressure of the horizontal high-pressure air gun 82 are automatically adjusted according to the absorption coefficient and the detection block degree of the density detection device 7, so that the separation of gangue, clean coal and middling coal is efficiently and quickly realized.
The gangue in the gangue hopper 91 and the middlings in the middlings hopper 93 are transported to a storage place by a transportation device and stored, and the clean coal in the clean coal hopper 92 is processed in the next working section.
Notably, the side port of the middle coal hopper 93, which is far from the horizontal high pressure air gun 82, is higher than the horizontal high pressure air gun 82, preventing the middle coal from being blown out.
The invention also has the following advantages:
4) After the materials pass through the screening device, the queuing device and the density detection device, the materials are divided into different products by a high-pressure air gun, so that the efficiency is high, and the data acquisition is timely, accurate and comprehensive;
5) Greatly improves the quality of coking coal, reduces the influence of gangue on a crushing device, improves the quality of coke and increases the production benefit;
6) Greatly improves the working environment, reduces the manual working strength and reduces the manual investment.
The foregoing is only a preferred embodiment of the invention, it being noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present invention, and such modifications and adaptations are intended to be comprehended within the scope of the invention.
Claims (5)
1. An automatic sorting device for lump coal and large gangue, which is characterized in that: the system comprises an industrial personal computer (1) and a controller (2), wherein the industrial personal computer (1) is in signal transmission connection with the controller (2);
The device comprises a raw coal hopper (3), a screening device (4) and a sorting conveying belt (5), wherein the raw coal hopper (3) is used for controlling the discharging through a controller (2), the screening device (4) is arranged at a discharging opening of the raw coal hopper (3), and the output short end of the screening device (4) corresponds to the input end of the sorting conveying belt (5);
The sorting device is characterized by further comprising a queuing device (6) and a density detection device (7) which are sequentially arranged along the conveying direction of the sorting conveying belt (5), wherein the queuing device (6) is used for carrying out thickness carding on materials conveyed by the sorting conveying belt (5), the density detection device (7) is used for carrying out density detection on the carded materials on the sorting conveying belt (5), and a signal transmitting end of the density detection device (7) is connected with a signal receiving end of the controller (2);
The device also comprises an air blowing type material classification unit (8) and a material classification temporary storage unit (9) which are arranged at the output end of the sorting conveying belt (5), wherein the air blowing type material classification unit (8) controls air blowing through the controller (2), and materials output from the output end of the conveying belt (5) are subjected to air blowing classification screening through the air blowing type material classification unit (8) and temporarily stored in the material classification temporary storage unit (9);
The queuing device (6) comprises a U-shaped groove (61), a material height detection device (62) arranged in the U-shaped groove (61) and a material thickness carding mechanism (63) arranged in the U-shaped groove (61); the U-shaped groove (61) is fixedly arranged on a frame (51) of the sorting conveying belt (5) and is arranged for covering the sorting conveying belt (5); the material height detection device (62) is used for detecting the height of the materials conveyed on the sorting conveying belt (5) and transmitting the detection result to the controller (2); the controller (2) judges whether to control the material thickness carding mechanism (63) to carry out material thickness carding operation according to the detection result;
The material thickness carding mechanism (63) comprises a material pressing vibration carding mechanism (631) and a material flat pushing, sweeping, spreading and carding mechanism (632); the material pushing vibration carding mechanism (631) pushes down and vibrates materials on the sorting conveyor belt (5) to reduce the thickness of the materials, the material horizontal pushing sweeping and spreading carding mechanism (632) pushes the materials on the sorting conveyor belt (5) horizontally and the fan-shaped sweeping and spreading to reduce the thickness of the materials, and the horizontal pushing direction of the materials by the material horizontal pushing sweeping and spreading carding mechanism (632) is opposite to the conveying direction of the sorting conveyor belt (5);
The novel screening device further comprises a chute (10) and a non-sorting conveying belt (11), wherein the chute (10) corresponds to the screening hole area of the screening device (4), and the output end of the chute (10) corresponds to the input end of the non-sorting conveying belt (11).
2. The automatic sorting device for lump coal gangue in lump coal as claimed in claim 1, wherein: the material pressing vibration carding mechanism (631) comprises a pressing plate (6311), a vibrating rod (6312), a pressing plate connecting part (6313) and a hydraulic cylinder (6314); the pressing plate (6311) is horizontally arranged across the sorting conveying belt (5); the plurality of vibrating rods (6312) are vertically distributed on the lower plate surface of the pressing plate (6311); the hydraulic cylinder (6314) is vertically downwards arranged at the bottom of the U-shaped groove (61), and the pressing plate (6311) is fixedly connected with the telescopic end of the hydraulic cylinder (6314) through the pressing plate connecting part (6313); the pressing plate (6311) is driven by the hydraulic cylinder (6314) to drive the vibrating rod (6312) to synchronously move downwards, the pressing plate (6311) presses down the materials on the sorting conveyor belt (5), and the vibrating rod (6312) is inserted into the materials on the sorting conveyor belt (5);
The material horizontal pushing, sweeping, spreading and carding mechanism (632) comprises a push plate (6321), an air cylinder (6322), a sweeping, carding mechanism connecting part (6323) and a sweeping, spreading and carding mechanism (6324); the pushing plate (6321) is vertically arranged transversely to the sorting conveying belt (5) and is arranged on one side, opposite to the material conveying direction of the sorting conveying belt (5), of the pressing plate (6311), and the bottom end of the pushing plate (6321) is kept flush with the lower plate surface of the pressing plate (6311); the air cylinder (6322) is fixedly arranged on the upper plate surface of the pressing plate (6311) and is in driving connection with the pushing plate (6321), and the sweeping and carding mechanism (6324) is arranged on one side, opposite to the material conveying direction of the sorting conveying belt (5), of the pushing plate (6321) through a sweeping and carding mechanism connecting part (6323); the pushing plate (6321) drives the sweeping and carding mechanism (6324) to synchronously translate along the opposite direction of the material conveying direction of the sorting conveying belt (5) through a cylinder (6322), the pushing plate (6321) horizontally pushes materials on the sorting conveying belt (5), and the sweeping and carding mechanism (6324) scans the materials on the sorting conveying belt (5) in a fan shape;
Sweeping, spreading and carding mechanism (6324) include servo motor (63241) and sweep stand pole (63242) of being connected with servo motor (63241) drive, sweep stand pole (63242) the pole portion extreme that is the lowest keep the parallel and level with clamp plate (6311) lower face, and servo motor (63241) drive sweep stand pole (63242) rotate the radian of the fan-shaped profile of sweeping that constitutes and be 180.
3. The automatic sorting device for lump coal gangue as claimed in claim 2, wherein: the material height detection device (62) comprises an infrared emitter (621) and an infrared receiver (622) which are correspondingly arranged on the inner groove wall of the U-shaped groove (61), and a signal transmitting end of the infrared receiver (622) is connected with a signal receiving end of the controller (2); the vibrating rod (6312), the hydraulic cylinder (6314), the air cylinder (6322) and the servo motor (63241) are controlled by the controller (2).
4. The automatic sorting device for lump coal gangue in lump coal as claimed in claim 1, wherein: the blowing type material classifying unit (8) comprises a downward-inclined high-pressure air gun (81) and a horizontal high-pressure air gun (82); the lower inclined high-pressure air gun (81) forms an obtuse angle with the horizontal sorting conveying belt (5) and is arranged obliquely above the output end of the sorting conveying belt (5), and the air blowing direction of the lower inclined high-pressure air gun (81) faces the material sorting temporary storage unit (9); the horizontal high-pressure air gun (82) is arranged below the sorting conveying belt (5), and the air blowing direction of the horizontal high-pressure air gun (82) is the same as the conveying direction of the sorting conveying belt (5) and faces the material sorting temporary storage unit (9);
The material classifying temporary storage unit (9) comprises a gangue hopper (91), a clean coal hopper (92) and a middling hopper (93) which are sequentially arranged side by side along the conveying direction of the classifying conveying belt (5); the height of a port on one side of the middle coal hopper (93) far away from the horizontal high-pressure air gun (82) is higher than that of the horizontal high-pressure air gun (82);
Electromagnetic valves (12) are arranged on a discharging opening of the raw coal hopper (3), the lower inclined high-pressure air gun (81) and the horizontal high-pressure air gun (82), and all the electromagnetic valves (12) are controlled to be opened and closed by the controller (2).
5. The automatic sorting device for lump coal gangue in lump coal as claimed in claim 1, wherein: the aperture of the sieving holes of the sieving device (4) is 50mm.
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| CN111729873A (en) * | 2020-08-25 | 2020-10-02 | 天津美腾科技股份有限公司 | Material sorting method and device, controller and storage medium |
| CN112791933B (en) * | 2020-12-21 | 2021-12-03 | 中国矿业大学 | Efficient coal gangue sorting system based on microwave radiation |
| CN114509400A (en) * | 2021-12-30 | 2022-05-17 | 茌平华旭新材料有限公司 | On-line automatic detection device for pre-baked anode carbon block |
| CN114082682B (en) * | 2022-01-18 | 2022-04-22 | 北矿机电科技有限责任公司 | Ore sorting distributor and sorter |
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