CN117465881A - Colliery belt bearing roller automatic spraying device based on fiber bragg grating temperature monitoring technique - Google Patents
Colliery belt bearing roller automatic spraying device based on fiber bragg grating temperature monitoring technique Download PDFInfo
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- CN117465881A CN117465881A CN202311812040.1A CN202311812040A CN117465881A CN 117465881 A CN117465881 A CN 117465881A CN 202311812040 A CN202311812040 A CN 202311812040A CN 117465881 A CN117465881 A CN 117465881A
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- telescopic rod
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- 239000000835 fiber Substances 0.000 title claims abstract description 59
- 238000005507 spraying Methods 0.000 title claims abstract description 35
- 238000012544 monitoring process Methods 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims description 20
- 239000013307 optical fiber Substances 0.000 claims abstract description 61
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 37
- 239000003245 coal Substances 0.000 claims abstract description 22
- 238000005516 engineering process Methods 0.000 claims abstract description 14
- 230000007246 mechanism Effects 0.000 claims description 30
- 238000004140 cleaning Methods 0.000 claims description 20
- 238000007790 scraping Methods 0.000 claims description 12
- 239000002817 coal dust Substances 0.000 claims description 10
- 230000002706 hydrostatic effect Effects 0.000 claims description 10
- 230000003287 optical effect Effects 0.000 claims description 9
- 230000008878 coupling Effects 0.000 claims description 6
- 238000010168 coupling process Methods 0.000 claims description 6
- 238000005859 coupling reaction Methods 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 4
- 238000001125 extrusion Methods 0.000 claims description 4
- 239000013013 elastic material Substances 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 2
- 239000007921 spray Substances 0.000 abstract description 17
- 238000009529 body temperature measurement Methods 0.000 abstract description 3
- 230000003068 static effect Effects 0.000 abstract 2
- 230000008569 process Effects 0.000 description 10
- 230000008859 change Effects 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000002310 reflectometry Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004200 deflagration Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 238000000253 optical time-domain reflectometry Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G15/00—Conveyors having endless load-conveying surfaces, i.e. belts and like continuous members, to which tractive effort is transmitted by means other than endless driving elements of similar configuration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G15/00—Conveyors having endless load-conveying surfaces, i.e. belts and like continuous members, to which tractive effort is transmitted by means other than endless driving elements of similar configuration
- B65G15/60—Arrangements for supporting or guiding belts, e.g. by fluid jets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G43/00—Control devices, e.g. for safety, warning or fault-correcting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G45/00—Lubricating, cleaning, or clearing devices
- B65G45/10—Cleaning devices
- B65G45/12—Cleaning devices comprising scrapers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D31/00—Other cooling or freezing apparatus
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2203/00—Indexing code relating to control or detection of the articles or the load carriers during conveying
- B65G2203/04—Detection means
- B65G2203/042—Sensors
- B65G2203/044—Optical
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2207/00—Indexing codes relating to constructional details, configuration and additional features of a handling device, e.g. Conveyors
- B65G2207/22—Heat or fire protection
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2207/00—Indexing codes relating to constructional details, configuration and additional features of a handling device, e.g. Conveyors
- B65G2207/40—Safety features of loads, equipment or persons
Abstract
The invention belongs to the technical field of coal mine transportation, and particularly relates to an automatic spraying device for a coal mine belt carrier roller based on a fiber grating temperature monitoring technology. The optical fibers are symmetrically distributed, the optical fibers are respectively laid on the carrier roller brackets which are distributed at equal intervals along the extending direction of the belt conveyor, a static pressure water pipe is arranged on one side of the belt conveyor, the static pressure water pipe is communicated with a water guide pipe which is distributed at equal intervals, an electromagnetic valve which is electrically connected with a remote control terminal is installed on the water guide pipe, a first supporting plate is fixedly connected with one side of the carrier roller bracket, a spray pipe is arranged on the first supporting plate, the spray pipe is communicated with the adjacent water guide pipe, and an atomizing nozzle is arranged on one side, close to the carrier roller, of the spray pipe. The invention monitors the temperature of the carrier roller by using the fiber grating temperature measurement technology, realizes accurate monitoring, atomizes water by using the atomizing nozzle of the spray pipe and then sprays the atomized water, and cools the atomized water along with the carrier roller, thereby avoiding the carrier roller from being in a high-temperature state continuously.
Description
Technical Field
The invention relates to the technical field of coal mine transportation, in particular to an automatic spraying device for a coal mine belt carrier roller based on a fiber grating temperature monitoring technology.
Background
In a coal mine, a belt conveying system is common conveying equipment and is used for conveying coal from a mining site to a coal preparation plant or other processing facilities, and the belt conveying system can greatly improve the conveying efficiency of the coal and plays an extremely important role in the loading and unloading process due to the high automation and specialization degree and the continuous and large-traffic operation mode.
The loss and failure rate of the carrier roller bearing of the belt conveyor and the roller of the belt conveyor are increased along with the long-term running of the belt conveyor, meanwhile, the temperature between the carrier roller and the belt is increased gradually along with the mutual friction between the carrier roller and the belt, the existing belt conveyor for coal mines cannot monitor the temperature of each carrier roller, so when the carrier roller is cooled, the spraying time can only be controlled manually, the carrier roller of the belt conveyor is cooled uniformly, however, when the belt conveyor works normally, the carrier roller is cooled by spraying frequently due to the change of conveying load, a large amount of water is adhered between the carrier roller and the belt, slipping is easily caused between an active driving shaft and the belt, if the carrier roller is cooled untimely, the coal dust adhered on the belt is ignited by high temperature, fire or even explosion accidents occur in a coal mine tunnel, and huge life and property loss is caused once the fire disaster occurs in the tunnel.
Disclosure of Invention
The invention provides an automatic spraying device for a coal mine belt carrier roller based on a fiber grating temperature monitoring technology, which overcomes the defects in the background technology.
The technical proposal is as follows: the utility model provides a colliery belt bearing roller automatic spraying device based on fiber bragg grating temperature monitoring technique, including the fiber that the symmetry distributes, the fiber that the symmetry distributes lays respectively on equidistant bearing roller support, the fiber that the symmetry distributes is located the both sides of bearing roller support respectively, the inside of fiber is provided with equidistant grating that distributes, the fiber is used for monitoring the temperature of bearing roller support, the fiber is connected with remote control terminal, the fiber feeds back the real-time temperature of bearing roller support to remote control terminal through the optical signal, be provided with coupling mechanism between fiber and the bearing roller support, one side of belt conveyer is provided with the hydrostatic pipe, the hydrostatic pipe intercommunication has equidistant aqueduct that distributes, install the solenoid valve that is connected with remote control terminal electricity on the aqueduct, one side rigid coupling of bearing roller support has first backup pad, first backup pad is provided with the shower, the shower is with adjacent aqueduct intercommunication, one side that the shower is close to the bearing roller is provided with atomizing nozzle; the connecting mechanism comprises a fixing clamp which is fixedly connected to the supporting frame, a connecting block is fixedly connected to the fixing clamp, a sliding groove is formed in the connecting block, a sliding column is slidably connected in the sliding groove of the connecting block, a sliding ring is slidably connected to the sliding column, a second supporting plate is fixedly connected to one side, close to the adjacent optical fibers, of the sliding ring, the second supporting plate is fixedly connected with the adjacent optical fibers, a temperature measuring and adjusting assembly is arranged on the sliding column and used for adjusting the distance between the optical fibers and the supporting frame, a buffer assembly is arranged between the sliding ring and the adjacent sliding column, and the buffer assembly is used for reducing the amplitude of the adjacent optical fibers; the second backup pad is close to adjacent one side of optic fibre sets up to the arc for closely laminate adjacent optic fibre, the both ends of second backup pad all fixedly connected with solid fixed ring is used for fixing adjacent optic fibre.
As a further preferable mode, the spraying pipe is in an isosceles trapezoid shape, and is parallel to the carrier roller and used for uniformly cooling the carrier roller.
As a further preference, the temperature measurement adjusting component comprises a first telescopic rod, the first telescopic rod is fixedly connected to the adjacent connecting block, the telescopic end of the first telescopic rod passes through the adjacent connecting block and is fixedly connected with the adjacent sliding column, the connecting block is fixedly connected with a mirror-distributed limiting telescopic rod, the telescopic end of the limiting telescopic rod is used for limiting the adjacent sliding column, a hollow shell is sleeved on the fixed shaft end of the horizontal carrier roller, and the hollow shell is communicated with the adjacent first telescopic rod and the limiting telescopic rod through an air duct.
As a further preferred aspect, the hollow shell is provided in a ring shape for increasing a contact area between the hollow shell and an adjacent horizontal carrier roller fixing shaft, and the hollow shell is filled with a gas which expands when heated.
As a further preferred, the buffer assembly comprises fixing columns distributed in a mirror image mode, the fixing columns distributed in the mirror image mode are fixedly connected to the adjacent sliding columns through mounting plates, the fixing columns penetrate through the adjacent sliding rings and are in sliding fit with the adjacent sliding rings, first elastic pieces distributed in the mirror image mode are sleeved on the fixing columns, and two ends of each first elastic piece are fixedly connected with the mounting plates of the adjacent sliding columns and the adjacent sliding rings respectively.
As a further preference, the automatic belt conveyer further comprises equidistant auxiliary supporting mechanisms, the equidistant auxiliary supporting mechanisms are respectively arranged on the adjacent first supporting plates, the auxiliary supporting mechanisms are used for supporting the belts, the auxiliary supporting mechanisms comprise evenly distributed rollers, the evenly distributed rollers are rotationally connected with the adjacent spraying pipes, the first supporting plates are embedded with electric pushing rods electrically connected with the remote control terminals, the telescopic ends of the electric pushing rods are fixedly connected with the adjacent spraying pipes through n-shaped frames, and the n-shaped frames on the telescopic ends of the electric pushing rods are in sliding connection with the adjacent first supporting plates.
As a further preference, the cleaning mechanism is further arranged at equal intervals, the cleaning mechanism is respectively arranged at one side of the adjacent carrier roller support, which is far away from the spray pipe, the cleaning mechanism is used for cleaning coal dust on the carrier roller, the cleaning mechanism comprises a third support plate, the third support plate is provided with a chute, a sliding plate is connected in the chute of the third support plate in a sliding way, a scraper plate which is in trapezoid distribution is fixedly connected with the sliding plate, the scraper plate is used for cleaning the adjacent carrier roller, a second telescopic rod is fixedly connected with the third support plate, the telescopic end of the second telescopic rod is fixedly connected with the adjacent sliding plate, the second telescopic rod is communicated with the adjacent guide pipe through a guide pipe, and a second elastic piece is fixedly connected between the sliding plate and the carrier roller support.
As a further preference, the optical fiber protection device further comprises a telescopic cover, wherein the telescopic cover is fixedly connected to the adjacent fixing clamp, a hard frame is arranged on one side, far away from the adjacent connecting block, of the telescopic cover, the hard frame of the telescopic cover is in extrusion fit with the carrier roller support, the telescopic cover is connected with the adjacent second support plate, and the telescopic cover is made of elastic materials and used for protecting the adjacent optical fiber.
The invention has the beneficial effects that: 1. the invention monitors the temperature of the carrier roller by utilizing the grating in the optical fiber, after the temperature of the carrier roller is increased, the atomized water is sprayed out by utilizing the atomizing nozzle of the spray pipe, and after the atomized water is sprayed to the carrier roller, the temperature of the carrier roller can be gradually reduced, so that the coal dust in the tunnel is prevented from deflagrating due to the fact that the carrier roller is continuously in a high-temperature state.
2. In the working process of the belt conveyor, two optical fibers are not contacted with the carrier roller support, friction between the optical fibers and the carrier roller support caused by vibration generated by the working process of the belt conveyor is avoided, damage is caused to the outer sides of the optical fibers, and the temperature of the carrier roller support cannot be effectively detected in real time; the first elastic piece is utilized to buffer the adjacent sliding rings, so that the amplitude of the sliding rings and the optical fibers on the sliding rings is reduced, the optical fibers are prevented from being in a vibration state for a long time, and the detection precision is reduced or even damaged.
3. When the carrier roller is damaged, the roller on the spray pipe is utilized to support the belt in time, so that the temperature of the damaged carrier roller is prevented from continuously rising to generate fire, and meanwhile, under the condition that the belt conveyor is not closed in time, the damaged carrier roller and the belt lose contact and can be continuously cooled.
4. At the in-process that the bearing roller cooled down, the scraper blade was scraped adhesion's buggy and water on to adjacent bearing roller, avoided water and buggy to form mud after the contact, the adhesion leads to the weight increase of belt at bearing roller and belt, avoids the buggy to harden simultaneously and causes the bearing roller shape to change in the outside of bearing roller, when leading to the belt to rotate along the bearing roller, the bearing roller can not rotate steadily.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic perspective view of the hydrostatic pipe, the guide pipe and other parts;
FIG. 3 is a schematic perspective view of the shower pipe and roller parts of the present invention;
fig. 4 is a cross-sectional view of a idler cradle and idler of the present invention;
FIG. 5 is a schematic perspective view of the fixing clip and the telescopic cover of the present invention;
FIG. 6 is a side view of the sliding column and sliding ring of the present invention;
FIG. 7 is a rear view of the fixing post and first resilient member of the present invention;
fig. 8 is a schematic perspective view of a cleaning mechanism according to the present invention.
Reference numerals: the device comprises a first optical fiber, a 2-static pressure water pipe, a 3-water guide pipe, a 4-electromagnetic valve, a 5-first supporting plate, a 6-spraying pipe, a 7-fixing clamp, a 8-connecting block, a 9-sliding column, a 10-sliding ring, a 11-second supporting plate, a 12-first telescopic rod, a 13-limiting telescopic rod, a 14-hollow shell, a 15-fixing column, a 16-first elastic piece, a 17-roller, a 18-electric push rod, a 19-third supporting plate, a 20-sliding plate, a 21-scraping plate, a 22-second telescopic rod, a 221-second elastic piece and a 23-telescopic cover.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The technical scheme utilizes a temperature sensing technology based on dense distributed fiber gratings, and the technical principle is that the dense distributed fiber gratings are mainly used as sensing elements, wherein the elements refer to special fiber gratings with extremely weak reflectivity, and the peak reflectivity is generally lower than-30 dB. Because the reflectivity is very low, fiber gratings with the same period can mutually penetrate, and a large number of grating point multiplexing on a single optical fiber is realized. A plurality of densely distributed fiber grating sensors are arranged at preset positions in space and are connected together in series or in other network structures, and a distributed monitoring network system can be formed by a time division multiplexing technology. The interval of each grating in the dense fiber grating array can be customized, generally at 1 meter interval, the time for the reflected light of each grating sensor to return is different, and the positioning of each grating can be realized by utilizing the principle. The time division multiplexing technique is in principle the same as the optical time domain reflectometry technique for single grating positioning.
The installation position of the monitoring fiber grating is selected to be an acquisition point of temperature on the installation surface of the inner side of the support of the middle support roller of the groove type support roller. The tension steel wires are arranged on belt transportation, the fiber bragg grating monitoring optical cable is paved, and the optical cable is bound on the tension steel wires. And the tension steel wire and the monitoring fiber grating are fixed on the carrier roller bracket by adopting a fixing clamp, and the monitoring fiber grating is in close contact with the carrier roller bracket, so that the effectiveness of the monitoring temperature of the system is ensured. When the temperature of a certain carrier roller is monitored to rise above a threshold, the main control box of the linkage spraying sprinkler carries out automatic sprinkling and cooling, so that the fire disaster is effectively prevented.
Example 1: the utility model provides a colliery belt bearing roller automatic spraying device based on fiber bragg grating temperature monitoring technique, as shown in fig. 1 and 2, including two optic fibre 1 of symmetric distribution, two optic fibre 1 lay respectively on equidistant distributed's bearing roller support, two optic fibre 1 are located the both sides of bearing roller support respectively, the inside of optic fibre 1 is provided with equidistant distributed's grating, optic fibre 1 is used for monitoring the temperature of bearing roller support, optic fibre 1 can also monitor the in-process of bearing roller temperature monitoring, optic fibre 1 is connected with remote control terminal, optic fibre 1 passes through the real-time temperature feedback of optical signal with the bearing roller support to remote control terminal, the optical signal that remote control terminal leads to analysis optic fibre 1 to be transmitted just can fix a position the position of temperature rise bearing roller, be provided with coupling mechanism between optic fibre 1 and the bearing roller support, the front side of belt conveyer is provided with hydrostatic tube 2, the hydrostatic tube 2 is interior to keep the high-pressure water all the time, the hydrostatic tube 2 intercommunication has equidistant distributed's aqueduct 3, install solenoid valve 4 on the aqueduct 3, solenoid valve 4 and remote control terminal electricity are connected, the left side rigid coupling of bearing roller support has first backup pad 5, be provided with the aqueduct 6 and the adjacent aqueduct 6 and the side is connected with the former aqueduct 6, the side of being parallel to the former aqueduct is connected with the former aqueduct 6, the side of the former aqueduct is parallel to the shower 6, the side of the atomizer is connected with the former aqueduct, the sprayer 6 is connected with the sprayer conduit 6, the sprayer conduit is connected with the sprayer conduit 6 after the sprayer 4, the sprayer is connected with the sprayer conduit is parallel. The electromagnetic valve is shown in fig. 4-7, the connecting mechanism comprises a fixing clamp 7, the fixing clamp 7 is fixedly connected to a supporting frame, a connecting block 8 is fixedly connected to the fixing clamp 7, a chute is arranged on the connecting block 8, a sliding column 9 is connected to the chute of the connecting block 8 in a sliding manner, a sliding ring 10 is connected to the sliding column 9 in a sliding manner, a second supporting plate 11 is fixedly connected to the outer side of the sliding ring 10, the second supporting plate 11 is fixedly connected with an adjacent optical fiber 1, the outer side of the second supporting plate 11 is arc-shaped and is used for being tightly attached to the adjacent optical fiber 1, the second supporting plate 11 guides the adjacent optical fiber, the optical fiber is in a horizontal state, fixing rings are fixedly connected to two ends of the second supporting plate 11 and are used for fixing the adjacent optical fiber 1, the fixing effect of the second supporting plate 11 on the adjacent optical fiber 1 is improved, a temperature measuring and adjusting component is arranged in the chute of the connecting block 8, the temperature measuring and adjusting component is used for adjusting the distance between the optical fiber 1 and the supporting frame, and the sliding ring 10 is provided with a buffer component between the sliding ring 10 and the adjacent sliding column 9, and the buffer component is used for reducing the amplitude of the adjacent optical fiber 1.
As shown in fig. 5-7, the temperature measurement adjusting assembly comprises a first telescopic rod 12, the first telescopic rod 12 is fixedly connected to an adjacent connecting block 8, the telescopic end of the first telescopic rod 12 passes through the adjacent connecting block 8 and is fixedly connected with an adjacent sliding column 9, two limit telescopic rods 13 distributed in a mirror image mode are fixedly connected to the connecting block 8, the telescopic end of each limit telescopic rod 13 is used for limiting the adjacent sliding column 9, when the optical fiber 1 is used for measuring the temperature of a carrier roller support, the optical fiber 1 on the sliding column 9 is driven by the optical fiber 1 to lose contact with the carrier roller support, a hollow shell 14 is sleeved at the fixed shaft end of a horizontal carrier roller, the hollow shell 14 is communicated with the adjacent first telescopic rod 12 and the limit telescopic rod 13 through an air duct, the first telescopic rod 12 and the limit telescopic rod 13 are all existing parts, the internal structures of the hollow shell 14 are not shown in the drawing, the hollow shell 14 is in a ring shape and is used for increasing the contact area between the hollow shell 14 and the adjacent horizontal carrier roller fixed shaft, heated and expanded gas in the hollow shell 14 is injected into the hollow shell 14, and the telescopic rod 12 and the end of the limit telescopic rod 13 which is communicated with the hollow shell 14 is heated and expanded.
As shown in fig. 7, the buffer assembly includes two fixing columns 15 distributed in mirror image, the two fixing columns 15 are fixedly connected to the adjacent sliding columns 9 through mounting plates, the fixing columns 15 penetrate through the adjacent sliding rings 10, the fixing columns 15 are in sliding fit with the adjacent sliding rings 10, two first elastic members 16 distributed in mirror image are sleeved on the fixing columns 15, the first elastic members 16 are springs and are used for buffering vibration suffered by the sliding rings 10, the amplitude of the sliding rings 10 is reduced, two ends of each first elastic member 16 are fixedly connected with the mounting plates of the adjacent sliding columns 9 and the adjacent sliding rings 10 respectively, in the operation process of the belt conveyor, vibration of the belt conveyor can be transmitted to the fixing clips 7 through carrier roller supports, and the influence of the vibration of the belt conveyor on the optical fibers 1 is reduced by utilizing the elasticity of the first elastic members 16.
In the process of the operation of the belt conveyor, the two optical fibers 1 are not contacted with the carrier roller support in the initial state, at the moment, the grating in the optical fibers 1 monitors the temperature of the surrounding environment, when the transmission speed of the belt is not matched with the rotation speed of the carrier roller in the process of conveying the coal mine by the belt, the belt and the carrier roller generate relative sliding friction, the temperature of the carrier roller is gradually increased, the temperature of the fixed shaft of the carrier roller is also increased along with the temperature of the fixed shaft of the carrier roller, after the temperature of the main shaft of the carrier roller is transferred to the hollow shell 14, the gas in the hollow shell 14 is heated and expands, then the gas in the hollow shell 14 flows into the adjacent first telescopic rod 12 and the adjacent limit telescopic rod 13 along the gas guide pipe, when the gas flows into the first telescopic rod 12, the telescopic end of the first telescopic rod 12 extends outwards, the telescopic end of the first telescopic rod 12 drives the adjacent sliding columns 9 to slide, at the moment, the two adjacent sliding columns 9 are far away, in the process of moving the sliding column 9, the telescopic end of the limiting telescopic rod 13 simultaneously extends outwards, after the telescopic end of the limiting telescopic rod 13 contacts with the outer wall of the adjacent sliding column 9, the telescopic end of the limiting telescopic rod 13 extends outwards along with the telescopic end of the limiting telescopic rod 13 and gradually extrudes the outer wall of the adjacent sliding column 9, in the process of extruding the telescopic end of the limiting telescopic rod 13 to extrude the outer wall of the adjacent sliding column 9, the sliding column 9 slides on the adjacent connecting block 8 along with the sliding of the sliding column 9, the sliding column 9 drives the adjacent optical fibers 1 to move through the adjacent sliding ring 10 and the second supporting plate 11, the two optical fibers 1 gradually contact with the carrier roller support along with the movement of the optical fibers 1, after the optical fibers 1 are completely attached to the carrier roller support, the telescopic end of the limiting telescopic rod 13 loses contact with the outer wall of the adjacent sliding column 9, the telescopic end of the limiting telescopic rod 13 continues to extend outwards, at this time, the telescopic end of the limiting telescopic rod 13 is located on one side, close to the adjacent first telescopic rod 12, of the adjacent sliding column 9, and the telescopic end of the adjacent limiting telescopic rod 13 limits the adjacent sliding column 9, so that the bonding tightness degree between the optical fiber 1 and the carrier roller bracket is improved.
When the optical fiber 1 is attached to the carrier roller support, the temperature of the carrier roller support is detected through the optical gratings distributed at equal intervals inside the optical fiber 1, after the optical fiber 1 detects that the temperature of the carrier roller support is increased, the optical fiber 1 is transmitted to the remote control terminal through an optical signal, the remote control terminal analyzes the optical signal, the remote control terminal determines the position of the carrier roller support with increased temperature after analysis, then the remote control terminal starts the electromagnetic valve 4 positioned at the position of the carrier roller support with increased temperature, water in the hydrostatic water pipe 2 flows into the adjacent spray pipe 6 through the water guide pipe 3, the water is sprayed onto the carrier roller in a mist form after passing through the atomizing nozzle of the spray pipe 6, the temperature of the carrier roller is gradually reduced after the atomized water is sprayed onto the carrier roller, and the situation that the carrier roller is continuously in a high-temperature state is avoided, so that deflagration occurs on coal dust in the tunnel.
After the temperature of the carrier roller is reduced, the remote control terminal firstly closes the electromagnetic valve 4, the spray pipe 6 stops spraying water, the temperature of the carrier roller support is also reduced, the temperature of gas in the hollow shell 14 is reduced, the volume of gas in the hollow shell 14 is also reduced, the gas in the first telescopic rod 12 and the limiting telescopic rod 13 flows back into the adjacent hollow shell 14 along the gas guide pipe, the telescopic end of the limiting telescopic rod 13 contracts, the telescopic end of the limiting telescopic rod 13 releases the limit on the adjacent sliding column 9, the telescopic end of the first telescopic rod 12 drives the adjacent sliding column 9 and the second support plate 11 thereon to reset, then the two optical fibers 1 are out of fit with the carrier roller support, in the working process of the belt conveyor, the two optical fibers 1 are not in contact with the carrier roller support, the vibration generated by the belt conveyor is prevented from causing friction between the optical fibers 1 and the carrier roller support, the outer side of the optical fibers 1 is prevented from being damaged, further the temperature of the carrier roller support cannot be effectively detected in real time, the vibration generated by the belt conveyor is transmitted to the sliding column 9 through the carrier roller support and the fixing clamp 7, when the sliding column 9 vibrates, the first elastic piece 16 is utilized to reduce the vibration of the adjacent sliding ring 10 and the optical fibers 1 to be in the vibration state, and the vibration is even in the vibration state, and the vibration is prevented from being damaged in the precision state.
Example 2: on the basis of embodiment 1, as shown in fig. 2 and 3, the belt conveyor further comprises equidistant auxiliary supporting mechanisms, the equidistant auxiliary supporting mechanisms are respectively arranged on the adjacent first supporting plates 5, the auxiliary supporting mechanisms are used for supporting the belt, the auxiliary supporting mechanisms comprise evenly distributed rollers 17, the evenly distributed rollers 17 are rotationally connected with the adjacent spraying pipes 6, bearings are arranged in the middle of the rollers 17, the rollers 17 are connected with the adjacent spraying pipes 6 through the bearings in the middle of the rollers, the first supporting plates 5 are embedded with electric push rods 18, the electric push rods 18 are electrically connected with remote control terminals, telescopic ends of the electric push rods 18 are fixedly connected with the adjacent spraying pipes 6 through n-shaped frames, after the belt conveyor is damaged, the remote control terminals start the electric push rods 18, the spraying pipes 6 positioned on the left side of the damaged carrier roller and the rollers 17 on the left side of the damaged carrier roller move upwards to separate the belt from the damaged carrier roller, and n-shaped frames on telescopic ends of the electric push rods 18 are slidingly connected with the adjacent first supporting plates 5.
When the optical fiber 1 detects that the temperature of the carrier roller is increased, the control terminal repeats the operation, the carrier roller after the temperature is increased is cooled, after the temperature is cooled for a period of time, the temperature of the carrier roller is always in a high-temperature state, at the moment, the carrier roller is proved to have a fault, the rotation is influenced, after the analysis of the remote control terminal, the remote control terminal then starts an electric push rod 18 which damages the left side of the carrier roller, the telescopic end of the electric push rod 18 drives an adjacent spray pipe 6 to move upwards through an n-shaped frame, at the moment, the spray pipe 6 is still in a water spraying state, along with the continuous increase of the height of the spray pipe 6, a roller 17 on the spray pipe 6 gradually contacts with the lower side of the belt, the roller 17 supports the belt upwards until the belt loses contact with the damaged carrier roller, then the remote control terminal closes the electric push rod 18, at this moment, the belt conveyer is in the operating condition, remote control terminal sends out the alarm and informs the staff to damage the concrete position of bearing roller, after the temperature of damaging the bearing roller reduces, two optic fibre 1 lose contact with the bearing roller support again, the staff is after closing the belt conveyer and change or maintain damaging the bearing roller, utilize roller 17 on the shower 6 in time to support the belt, avoid damaging the temperature of bearing roller and continuously rise and produce the conflagration, simultaneously under the condition that the belt conveyer is not in time closed, make damaging bearing roller and belt lose contact and can continuously cool down, after the bearing roller maintenance is accomplished, the staff resets through the flexible end of remote control terminal control electric putter 18, the shower 6 and roller 17 on it reset, the belt conveyer continues normal work.
Example 3: on the basis of embodiment 2, as shown in fig. 8, the device further comprises equidistant cleaning mechanisms, the equidistant cleaning mechanisms are respectively arranged on the right sides of adjacent carrier roller brackets, the cleaning mechanisms are used for cleaning coal dust on the adjacent carrier roller brackets, the cleaning mechanisms comprise a third supporting plate 19, the third supporting plate 19 is provided with a chute, a sliding plate 20 is connected in the chute of the third supporting plate 19 in a sliding manner, the sliding plate 20 is in a water spraying state along the adjacent third supporting plate 19, at this time, the spray pipe 6 is in a water spraying state, three scraping plates 21 in trapezoid distribution are fixedly connected with the sliding plate 20, the scraping plates 21 are used for cleaning the adjacent carrier roller, when the scraping plates 21 are in contact with the adjacent carrier roller, the scraping plates 21 are used for cleaning the coal dust on the adjacent carrier roller brackets, a second telescopic rod 22 is fixedly connected with the adjacent sliding plate 20, when the water pressure in the second telescopic rod 22 is increased, the telescopic end of the second telescopic rod 22 stretches out, the second telescopic rod 22 is communicated with the adjacent guide pipe 3 through a guide pipe, a second elastic piece 221 is fixedly connected between the sliding plate 20 and the carrier roller brackets, and the second elastic piece 221 is arranged to drive the adjacent electromagnetic valve 20 to move towards the adjacent telescopic rod 20, and the second telescopic rod 20 is arranged to drive the adjacent electromagnetic valve 20.
After the electromagnetic valve 4 is started by the remote control terminal, water in the hydrostatic water pipe 2 flows along the adjacent water guide pipe 3, water in the water guide pipe 3 flows into the second telescopic rod 22 along the guide pipe, the telescopic end of the second telescopic rod 22 stretches out outwards, the telescopic end of the second telescopic rod 22 drives the sliding plate 20 to slide along the adjacent third supporting plate 19, the sliding plate 20 drives the scraping plate 21 on the sliding plate 20 to slide towards the adjacent carrier roller, the second elastic piece 221 is compressed until the three scraping plates 21 are contacted with the adjacent three carrier rollers, the scraping plate 21 scrapes the coal dust and water adhered to the adjacent carrier rollers in the process of supporting and cooling, slurry is prevented from being formed after the water contacts with the coal dust, the adhesion is caused at the lower sides of the carrier rollers and the carrier rollers, the weight of the carrier rollers is increased, meanwhile, the phenomenon that the shape of the carrier rollers is changed due to the fact that the coal dust is hardened at the outer sides of the carrier rollers is avoided, and the carrier rollers cannot rotate stably when the belt rotates along the carrier rollers.
When the remote control terminal closes the electromagnetic valve 4, the pressure of water in the spray pipe 6 is reduced, meanwhile, the pressure of water in the guide pipe between the water guide pipe 3 and the second telescopic rod 22 is reduced, and under the elastic action of the second elastic piece 221, the sliding plate 20 and the scraping plate 21 on the sliding plate are reset, and the scraping plate 21 is far away from the carrier roller.
Example 4: on the basis of embodiment 3, as shown in fig. 5, the optical fiber fixing device further comprises a telescopic cover 23, the telescopic cover 23 is fixedly connected to the adjacent fixing clamp 7, a hard frame is arranged on the outer side of the telescopic cover 23, the hard frame of the telescopic cover 23 is in extrusion fit with the carrier roller support, the telescopic cover 23 is connected with the adjacent second supporting plate 11, after the hard frame of the telescopic cover 23 is in extrusion contact fit with the carrier roller support, the telescopic cover 23 is convenient for the carrier roller support to form a cavity, the telescopic cover 23 is made of elastic materials, when the position of the optical fiber 1 changes, the telescopic cover 23 can move along with the change of the optical fiber 1, the telescopic cover 23 does not block the movement of the optical fiber, and the optical fiber is protected by the optical fiber fixing device.
When the optical fiber 1 moves close to the carrier roller support and is attached to the carrier roller support, the telescopic cover 23 is free to deform, and when the belt conveyor works to vibrate, the position of the sliding ring 10 changes, the telescopic cover 23 can change simultaneously, the telescopic cover 23 blocks pulverized coal in air, the pulverized coal is prevented from being attached to the optical fiber 1 and the carrier roller support, the optical fiber 1 is attached to the carrier roller support, and then the pulverized coal exists between the optical fiber 1 and the carrier roller support, so that an error exists when the optical fiber 1 detects the temperature of the carrier roller support.
It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art and which are included in the embodiments of the present invention without the inventive step, are intended to be within the scope of the present invention. Structures, devices and methods of operation not specifically described and illustrated herein, unless otherwise indicated and limited, are implemented according to conventional means in the art.
Claims (8)
1. The utility model provides a colliery belt bearing roller automatic spraying device based on fiber bragg grating temperature monitoring technique, its characterized in that, including symmetric distribution's optic fibre (1), symmetric distribution optic fibre (1) lay respectively on equidistant distributed's bearing roller support, symmetric distribution optic fibre (1) are located the both sides of bearing roller support respectively, the inside of optic fibre (1) is provided with equidistant distributed's grating, optic fibre (1) are used for monitoring the temperature of bearing roller support, optic fibre (1) are connected with remote control terminal, optic fibre (1) are through the real-time temperature feedback of optical signal with bearing roller support to remote control terminal, be provided with coupling mechanism between optic fibre (1) and the bearing roller support, one side of belt conveyer is provided with hydrostatic pipe (2), hydrostatic pipe (2) intercommunication has equidistant distributed's aqueduct (3), install solenoid valve (4) with remote control terminal electricity connection on aqueduct (3), one side rigid coupling of bearing roller support has first backup pad (5), first backup pad (5) are provided with shower (6), shower (6) and adjacent aqueduct (3) are close to one side of the shower (6) sets up the shower that the shower is close to the nozzle (6); the connecting mechanism comprises a fixing clamp (7), the fixing clamp (7) is fixedly connected to a supporting frame, a connecting block (8) is fixedly connected to the fixing clamp (7), a sliding groove is formed in the connecting block (8), a sliding column (9) is connected in the sliding groove of the connecting block (8) in a sliding mode, a sliding ring (10) is connected to the sliding column (9) in a sliding mode, a second supporting plate (11) is fixedly connected to one side, close to the adjacent optical fiber (1), of the sliding ring (10), the second supporting plate (11) is fixedly connected to the adjacent optical fiber (1), a temperature measuring adjusting component is arranged on the sliding column (9), the temperature measuring adjusting component is used for adjusting the distance between the optical fiber (1) and the supporting frame, a buffer component is arranged between the sliding ring (10) and the adjacent sliding column (9), and the buffer component is used for reducing the amplitude of the adjacent optical fiber (1). The second backup pad (11) is close to adjacent one side of optic fibre (1) sets up to the arc for closely laminate adjacent optic fibre (1), the both ends of second backup pad (11) all fixedly connected with solid fixed ring is used for fixing adjacent optic fibre (1).
2. The automatic spraying device for the coal mine belt carrier roller based on the fiber grating temperature monitoring technology according to claim 1, wherein the spraying pipe (6) is in an isosceles trapezoid shape, and the spraying pipe (6) is parallel to the carrier roller and is used for uniformly cooling the carrier roller.
3. The automatic spraying device for the coal mine belt carrier roller based on the fiber grating temperature monitoring technology according to claim 1, wherein the temperature measuring adjusting assembly comprises a first telescopic rod (12), the first telescopic rod (12) is fixedly connected to the adjacent connecting block (8), the telescopic end of the first telescopic rod (12) penetrates through the adjacent connecting block (8) and is fixedly connected with the adjacent sliding column (9), a limit telescopic rod (13) in mirror image distribution is fixedly connected to the connecting block (8), the telescopic end of the limit telescopic rod (13) is used for limiting the adjacent sliding column (9), a hollow shell (14) is sleeved at the fixed shaft end of the carrier roller in a horizontal state, and the hollow shell (14) is communicated with the adjacent first telescopic rod (12) and the limit telescopic rod (13) through an air duct.
4. The automatic spraying device for the coal mine belt carrier roller based on the fiber grating temperature monitoring technology according to claim 3, wherein the hollow shell (14) is arranged in a ring shape and is used for increasing the contact area between the hollow shell (14) and an adjacent horizontal carrier roller fixing shaft, and heated and expanded gas is injected into the hollow shell (14).
5. The automatic spraying device for the coal mine belt carrier roller based on the fiber grating temperature monitoring technology according to claim 3, wherein the buffer component comprises fixed columns (15) distributed in a mirror image mode, the fixed columns (15) distributed in a mirror image mode are fixedly connected to adjacent sliding columns (9) through mounting plates, the fixed columns (15) penetrate through the adjacent sliding rings (10), the fixed columns (15) are in sliding fit with the adjacent sliding rings (10), first elastic pieces (16) distributed in a mirror image mode are sleeved on the fixed columns (15), and two ends of each first elastic piece (16) are fixedly connected with the mounting plates of the adjacent sliding columns (9) and the adjacent sliding rings (10) respectively.
6. The automatic spraying device for the coal mine belt carrier roller based on the fiber grating temperature monitoring technology according to claim 1, further comprising equidistant auxiliary supporting mechanisms, wherein the equidistant auxiliary supporting mechanisms are respectively arranged on the adjacent first supporting plates (5), the auxiliary supporting mechanisms are used for supporting the belt and comprise evenly distributed rollers (17), the evenly distributed rollers (17) are rotationally connected with the adjacent spraying pipes (6), the first supporting plates (5) are embedded with electric pushing rods (18) electrically connected with remote control terminals, the telescopic ends of the electric pushing rods (18) are fixedly connected with the adjacent spraying pipes (6) through n-shaped frames, and the n-shaped frames on the telescopic ends of the electric pushing rods (18) are in sliding connection with the adjacent first supporting plates (5).
7. The automatic spraying device for the coal mine belt carrier roller based on the fiber grating temperature monitoring technology according to claim 6, further comprising equidistant cleaning mechanisms, wherein the equidistant cleaning mechanisms are respectively arranged on one side of the adjacent carrier roller support, which is far away from the spraying pipe (6), the cleaning mechanisms are used for cleaning coal dust on the carrier roller, the cleaning mechanisms comprise a third support plate (19), the third support plate (19) is provided with a sliding groove, sliding plates (20) are slidably connected in the sliding grooves of the third support plate (19), scraping plates (21) which are in trapezoid distribution are fixedly connected with the sliding plates (20), the scraping plates (21) are used for cleaning the adjacent carrier roller, the third support plate (19) is fixedly connected with a second telescopic rod (22), the telescopic end of the second telescopic rod (22) is fixedly connected with the adjacent sliding plates (20), the second telescopic rod (22) is communicated with the adjacent water guide pipe (3) through a guide pipe, and a second elastic piece (221) is fixedly connected between the sliding plates (20) and the carrier roller support.
8. The automatic spraying device for the coal mine belt carrier roller based on the fiber grating temperature monitoring technology according to claim 3, further comprising a telescopic cover (23), wherein the telescopic cover (23) is fixedly connected to the adjacent fixing clamp (7), a hard frame is arranged on one side, away from the adjacent connecting block (8), of the telescopic cover (23), the hard frame of the telescopic cover (23) is in extrusion fit with the carrier roller support, the telescopic cover (23) is connected with the adjacent second supporting plate (11), and the telescopic cover (23) is made of elastic materials and is used for protecting the adjacent optical fibers (1).
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| CN202311812040.1A CN117465881B (en) | 2023-12-27 | 2023-12-27 | Colliery belt bearing roller automatic spraying device based on fiber bragg grating temperature monitoring technique |
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| CN202311812040.1A CN117465881B (en) | 2023-12-27 | 2023-12-27 | Colliery belt bearing roller automatic spraying device based on fiber bragg grating temperature monitoring technique |
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