CN115258431B - Raw coal bin body structure - Google Patents
Raw coal bin body structure Download PDFInfo
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- CN115258431B CN115258431B CN202210979901.4A CN202210979901A CN115258431B CN 115258431 B CN115258431 B CN 115258431B CN 202210979901 A CN202210979901 A CN 202210979901A CN 115258431 B CN115258431 B CN 115258431B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D88/00—Large containers
- B65D88/54—Large containers characterised by means facilitating filling or emptying
- B65D88/64—Large containers characterised by means facilitating filling or emptying preventing bridge formation
- B65D88/66—Large containers characterised by means facilitating filling or emptying preventing bridge formation using vibrating or knocking devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D88/00—Large containers
- B65D88/54—Large containers characterised by means facilitating filling or emptying
- B65D88/64—Large containers characterised by means facilitating filling or emptying preventing bridge formation
- B65D88/68—Large containers characterised by means facilitating filling or emptying preventing bridge formation using rotating devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D90/00—Component parts, details or accessories for large containers
- B65D90/48—Arrangements of indicating or measuring devices
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W90/00—Enabling technologies or technologies with a potential or indirect contribution to greenhouse gas [GHG] emissions mitigation
- Y02W90/10—Bio-packaging, e.g. packing containers made from renewable resources or bio-plastics
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Solid Fuels And Fuel-Associated Substances (AREA)
- Disintegrating Or Milling (AREA)
Abstract
The invention relates to the technical field of raw coal bins of thermal power plants, and discloses a raw coal bin body structure, which comprises a coal feeding bin, wherein a hyperbolic tube is fixedly connected to the bottom of the coal feeding bin, a scraper is arranged above the hyperbolic tube, a speed reducer is fixedly connected to the outside of the scraper, a motor is fixedly connected to the outside of the speed reducer, a bin vibrator is fixedly connected to the outsides of the coal feeding bin and the hyperbolic tube, and a pressure detector is fixedly connected to the insides of the coal feeding bin and the hyperbolic tube; the pressure detector detects the pressure state of giving coal bunker and hyperbolic tube, judges the jam condition, and then reaches intelligent start feed bin vibrator, effectively improves degree of automation, reduces the waste of manpower resources to economic benefits, and in clear stifled in-process, through the cooperation of pressure detector and feed bin vibrator, according to the regional rational regulation start different regional feed bin vibrators of stifled coal, and then effectively guarantee clear stifled effect, improve clear stifled adaptability.
Description
Technical Field
The invention relates to the technical field of raw coal bins of thermal power plants, in particular to a raw coal bin body structure.
Background
Because of the severe thermal power management situation, many thermal power plants reduce fuel cost by blending coal slime or high-moisture low-quality coal. When lignite with high moisture cohesiveness is conveyed, a large amount of raw coal can be easily adhered to the inner wall surface close to the outlet of the traditional raw coal bin, the phenomenon of coal blockage occurs, normal conveying of the raw coal is affected, and continuous and safe operation of the boiler is threatened. The technical scheme for solving the problems of coal covering and blocking of the raw coal bunker is summarized as breaking and blocking by manpower, and breaking and blocking by means of a bunker wall vibrator, an air cannon, a hydraulic dredging device and the like. These dredging apparatuses are generally provided with both manual and automatic control means, or are designed to perform a preheating and drying treatment of the input raw coal, thereby improving the fluidity thereof by reducing the external moisture.
Although the existing solution can solve the problems of coal bunker coal covering and coal blocking to a certain extent, in actual situations, the blocking position of the raw coal bunker changes along with the reasons of coal quality and the like, the blocking position is uncertain and is also in continuous change, and in the production process, for example, if an air cannon is positioned above the blocking position, the coal is more compact. Therefore, the method cannot effectively break the blockage, and meanwhile, all the devices are operated on site by workers, so that human resources are wasted, and the economic benefit is poor. If the fluidity is improved by preheating and drying and reducing the external water, an additional preheating and drying system is needed, the occupied area is large, the investment is high, and the running cost is greatly increased.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a raw coal bunker body structure which is provided with the advantages of automatically detecting the blockage of the coal bunker and controlling the blockage removal action, thereby improving the blockage prevention efficiency and the blockage removal effect of the whole flow.
In order to achieve the above purpose, the present invention provides the following technical solutions: the raw coal bin body structure comprises a coal feeding bin, wherein a hyperbolic tube is fixedly connected to the bottom of the coal feeding bin, a scraper is arranged above the hyperbolic tube, a speed reducer is fixedly connected to the outside of the scraper, a motor is fixedly connected to the outside of the speed reducer, a bin vibrator is fixedly connected to the outside of the coal feeding bin and the hyperbolic tube, and a pressure detector is fixedly connected to the inside of the coal feeding bin and the hyperbolic tube;
still include intelligent control cabinet, intelligent control cabinet includes signal acquisition module, data processing module, logical operation module and carries out drive module, wherein:
the signal acquisition module is electrically connected with the pressure detectors and is used for receiving field pressure signals of the pressure detectors;
the data processing module is used for amplifying the signals by carrying out logic operation;
the logic operation module is used for receiving the amplified signal of the data processing module, carrying out logic judgment on the detection signal and a preset pressure threshold value of the system, and judging an execution result;
and the execution driving module is used for determining the start and stop of the bin vibrator in the execution area according to the judgment result of the logic operation module.
Preferably, the hyperbolic tube is arranged in a hyperbolic shape, the curve end of the hyperbolic tube enlarges the inlet area, and the size of the inlet of the coal feeder is increased to match the inlet, so that the raw coal is facilitated to fall down.
Preferably, the pressure detector and the bin vibrator are arranged on the inner side and the outer side of the coal feeding bin and the hyperbolic tube in a layering mode, each pressure detector and each bin vibrator are provided with an independent control unit, and each pressure detector is provided with a matched layering bin vibrator. The bin vibrators at different positions are conveniently controlled, so that the bin vibrators are controlled and started to be the optimal blockage clearing positions, and therefore the blockage clearing effect and blockage clearing efficiency are guaranteed.
Preferably, the data processing module receives the pressure detection data collected by the signal collecting module, further comprises layering processing of the pressure detection data, layering processing is carried out on the data according to layering distribution of the field pressure detectors, one layer of pressure sensing data is used as one data set, and a plurality of data sets are matched with the layer number of the field pressure detectors.
Preferably, the logic operation module performs distinguishing judgment on a plurality of data sets distinguished by the data processing module, if a data set with a yes execution result exists, the pressure detectors of the data sets matched with the execution result are synchronously determined, the storage bin vibrators matched with the layered pressure detectors are synchronously determined, the execution driving module receives the data processing result of the logic operation module, and generates a control instruction for controlling the start of the storage bin vibrators matched with the data set with the yes execution result.
Preferably, the scraper comprises a knife board fixedly connected with the output shaft end of the speed reducer, a knife edge is arranged in the rotation direction of the knife board, a side knife opening is fixedly connected with the outer side end of the knife board, and the knife board and the side knife edge are in an E shape. By setting the E shape, the blocking breaking effect of the scraper in the rotating process is increased.
Preferably, the cutting board is located between the two side cutting ports and is movably connected with a baffle, one end of the baffle located on the inner side of the cutting board is fixedly connected with a permanent magnet block, and the inside of the cutting board is fixedly connected with an electromagnetic block and a mercury switch. The mercury switch is electrically connected with the electromagnetic block and used for connecting the electrified magnetism of the electromagnetic block with the homopolar magnetic poles of the permanent magnet block, and the mercury switch forms a closed circuit when the inclined angle of the cutter plate in the inclined direction is more than or equal to three degrees so as to control the electrifying of the electromagnetic block. When the cutting board rotates to incline upwards, the mercury switch controls the electromagnetic block to be electrified, and then the electromagnetic block pushes the baffle plate to move between the side cutter openings through the permanent magnet block to form an impetus, and because the cutting board is electrified when upwards and is powered off when downwards inclined, the cutting board is pressed downwards under the action of coal materials when powered off, so that the coal materials form a rotary driving thrust matched with rotation in the coal feeding bin and the hyperbolic tube, and the coal materials are further led to spiral downwards, the blockage breaking effect is increased, and meanwhile, a unidirectional rotary thrust is applied to the coal materials, so that the blockage preventing effect is achieved.
The beneficial effects are that:
1. this former coal bunker storehouse body structure detects the pressure state for coal bunker and hyperbolic spool through pressure detector, judges the jam condition, and then reaches intelligent start feed bin vibrator, effectively improves degree of automation, reduces the waste of manpower resources to economic benefits, and in clear stifled in-process, through pressure detector and feed bin vibrator's cooperation, according to the regional rational regulation of stifled coal feed bin vibrator in different regions of start, and then effectively guarantee clear stifled effect, improve clear stifled adaptability.
2. This former coal bunker storehouse body structure through the bottom fixedly connected with hyperbola pipe for the coal bunker, reforms transform on the basis of former coal bunker, through setting up the hyperbola pipe in the bottom, the hyperbola pipe passes through flange and for coal bunker fixed connection to the debugging time of the new equipment of saving, and practiced thrift certain economic cost.
3. The raw coal bin body structure is characterized in that a side cutter opening is fixedly connected to the outer side end of a cutter plate, and the cutter plate and the side cutter opening are E-shaped. The scraper center symmetry is provided with three groups, and in the scraper rotation process, through setting up "E" style of calligraphy, increases the broken stifled effect of scraper in rotatory in-process. The knife edge scrapes the raw coal on the bottom surface, and the side knife opening breaks the raw coal in the center.
4. This former coal bunker storehouse body structure, when the cutting board rotates to the upward sloping, mercury switch control electromagnetism piece circular telegram, then the electromagnetism piece passes through the permanent magnetism piece and promotes between the baffle removal to the side knife mouth, form the driving force, because circular telegram when the cutting board upwards, outage when downward sloping, it can the cutting board inboard to push down under the effect of coal material when outage, thereby make the coal material form one in giving coal bunker and hyperbolic spool and rotate the rotary drive thrust that matches, and then make the coal material spiral downwards, not only increase the effect of breaking the jam, apply a unidirectional rotary thrust for the coal material simultaneously, reach the effect of prevention jam.
Drawings
FIG. 1 is a schematic overall cross-sectional view of the structure of the present invention;
FIG. 2 is a schematic overall transverse cross-section of the structure of the present invention;
FIG. 3 is a schematic diagram of a system module of the intelligent control cabinet with the structure of the invention;
FIG. 4 is a schematic diagram of the workflow of the present invention;
FIG. 5 is a schematic diagram of an intelligent control cabinet with the structure of the invention;
FIG. 6 is a schematic diagram of a structural motor and doctor blade of the invention;
fig. 7 is a schematic cross-sectional view of a structural scraper of the present invention.
In the figure: 1. feeding coal bins; 2. a hyperbolic tube; 3. a scraper; 31. a knife board; 32. a knife edge; 33. a side knife edge; 34. a baffle; 35. permanent magnet blocks; 36. an electromagnetic block; 37. a mercury switch; 4. a speed reducer; 5. a motor; 6. a bin vibrator; 7. a pressure detector; 8. an intelligent control cabinet.
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.
Example 1
Referring to fig. 1-5, an original coal bunker body structure comprises a coal bunker 1, a hyperbolic tube 2 is fixedly connected to the bottom of the coal bunker 1, a scraper 3 is arranged above the hyperbolic tube 2, a speed reducer 4 is fixedly connected to the outside of the scraper 3, a motor 5 is fixedly connected to the outside of the speed reducer 4, a bunker vibrator 6 is fixedly connected to the outside of the coal bunker 1 and the hyperbolic tube 2, and a pressure detector 7 is fixedly connected to the inside of the coal bunker 1 and the hyperbolic tube 2; reform transform on the basis of former coal bunker, through setting up hyperbolic spool 2 in the bottom, hyperbolic spool 2 passes through flange and gives coal bunker 1 fixed connection to the debugging time of the new equipment of saving, and practiced thrift certain economic cost.
Still include intelligent control cabinet 8, intelligent control cabinet 8 includes signal acquisition module, data processing module, logical operation module and execution drive module, wherein:
the signal acquisition module is electrically connected with the pressure detectors 7 and is used for receiving field pressure signals of the pressure detectors 7;
the data processing module is used for amplifying the signals by carrying out logic operation;
the logic operation module is used for receiving the amplified signal of the data processing module, carrying out logic judgment on the detection signal and a preset pressure threshold value of the system, and judging an execution result;
and the execution driving module is used for determining the start and stop of the bin vibrator 6 in the execution area according to the judgment result of the logic operation module.
The hyperbolic tube 2 is arranged to be hyperbolic, the inlet area is enlarged at the tail end of the curve of the hyperbolic tube 2, the size of the inlet of the coal feeder is increased to match with the inlet, the static friction force of the inner wall is reduced through hyperbolic design, the raw coal is in a flowing state, the raw coal is favorably dropped, the occurrence of the blockage condition of the raw coal is reduced, and the coal feeding effect and efficiency are improved.
Wherein, pressure detector 7 and feed bin vibrator 6 are the layering setting in the inside and outside both sides of giving coal bunker 1 and hyperbola pipe 2, and every pressure detector 7 and feed bin vibrator 6 are provided with independent control unit, and every pressure detector 7 is provided with assorted layering feed bin vibrator 6. The bin vibrators 6 at different positions are conveniently controlled, so that the bin vibrators 6 are controlled and started to be the optimal blockage clearing positions, and therefore blockage clearing effects and blockage clearing efficiency are guaranteed.
The data processing module receives the pressure detection data acquired by the signal acquisition module, and further comprises layering processing of the pressure detection data, layering processing is carried out on the data according to layering distribution of the field pressure detectors 7, one layer of pressure sensing data is used as one data set, and a plurality of data sets are matched with the layer number of the field pressure detectors 7.
The logic operation module performs distinguishing judgment on a plurality of data sets distinguished by the data processing module, if a data set with a yes execution result exists, the pressure detector 7 matched with the data set with the execution result synchronously determines the bin vibrators 6 matched with the layered pressure detector 7, the execution driving module receives the data processing result of the logic operation module, and the execution driving module generates a control instruction for controlling the start of the bin vibrators 6 matched with the data set with the yes execution result.
In the coal feeding process, raw coal falls down through the coal feeding bin 1 and the hyperbolic tube 2, and simultaneously the motor 5 drives the scraper 3 to rotate through the speed reducer 4, and the scraper 3 rotates at the top of the hyperbolic tube 2 to clear and block, so that the raw coal is ensured to smoothly enter the hyperbolic tube 2.
In operation, each layered pressure detector 7 detects pressure data and transmits the pressure detection data to the signal detection module.
The signal processing process is as follows:
s1, a signal acquisition module is electrically connected with the pressure detectors 7 and is used for receiving field pressure signals of the pressure detectors 7;
s2, the data processing module receives the pressure detection data acquired by the signal acquisition module, and further comprises layering processing of the pressure detection data, layering processing is carried out on the data according to layering distribution of the field pressure detector 7, one layer of pressure sensing data is used as one data set, and a plurality of data sets are matched with the layer number of the field pressure detector 7;
s3, the logic operation module performs distinguishing judgment on a plurality of data sets distinguished by the data processing module, judges the logic relation between the pressure data of the data sets and the preset numerical value of the system, judges whether the executing condition is met, if yes, executes S4, synchronously determines the bin vibrators 6 matched with the layered pressure detector 7, and if yes, executes S5;
s4, the execution driving module receives the data processing result of the logic operation module, generates a control instruction for the bin vibrator 6 matched with the data set with the line result of yes, and controls the matched bin vibrator 6 to vibrate and clear the blockage;
s5, the execution driving module keeps a standby state, the scraper 3 is in a working state, and the stock bin vibrator 6 is in a standby working state.
Example two
Referring to fig. 1-6, further, on the basis of the first embodiment, the scraper 3 includes a knife board 31 fixedly connected to the output shaft end of the speed reducer 4, a knife edge 32 is disposed in the rotation direction of the knife board 31, a side knife opening 33 is fixedly connected to the outer side end of the knife board 31, and the knife board 31 and the side knife opening 33 are in an E shape. Three groups of scrapers 3 are symmetrically arranged at the center, and in the rotation process of the scrapers 3, the blocking breaking effect of the scrapers 3 in the rotation process is improved by arranging an E shape. The knife edge 32 scrapes the bottom raw coal, and the side knife edge 33 breaks the center raw coal.
Example III
Referring to fig. 1-6, further, on the basis of the second embodiment, a baffle 34 is movably connected between two side knife openings 33 of the knife plate 31, a permanent magnet 35 is fixedly connected to one end of the baffle 34 located inside the knife plate 31, and an electromagnetic block 36 and a mercury switch 37 are fixedly connected inside the knife plate 31. The mercury switch 37 is electrically connected with the electromagnetic block 36, and is used for connecting the electromagnetic block 36 with the magnetic poles of the permanent magnet block 35, and the mercury switch 37 forms a closed circuit when the inclined angle of the knife plate 31 in the inclined direction is more than or equal to three degrees, so as to control the electromagnetic block 36 to be electrified. When the knife plate 31 rotates to incline upwards, the mercury switch 37 controls the electromagnetic block 36 to be electrified, and then the electromagnetic block 36 pushes the baffle 34 to move between the side knife openings 33 through the permanent magnet 35 to form a pushing force.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a raw coal storehouse body structure, includes coal feed storehouse (1), its characterized in that: the device is characterized in that a hyperbolic tube (2) is fixedly connected to the bottom of the coal feeding bin (1), a scraper (3) is arranged above the hyperbolic tube (2), a speed reducer (4) is fixedly connected to the outside of the scraper (3), a motor (5) is fixedly connected to the outside of the speed reducer (4), a bin vibrator (6) is fixedly connected to the outside of the coal feeding bin (1) and the hyperbolic tube (2), and a pressure detector (7) is fixedly connected to the inside of the coal feeding bin (1) and the hyperbolic tube (2);
still include intelligent control cabinet (8), intelligent control cabinet (8) include signal acquisition module, data processing module, logical operation module and execute drive module, wherein:
the signal acquisition module is electrically connected with the pressure detectors (7) and is used for receiving field pressure signals of the pressure detectors (7);
the data processing module is used for amplifying the signals by carrying out logic operation;
the logic operation module is used for receiving the amplified signal of the data processing module, carrying out logic judgment on the detection signal and a preset pressure threshold value of the system, and judging an execution result;
the execution driving module is used for determining the start and stop of the bin vibrator (6) in the execution area according to the judgment result of the logic operation module;
the scraper (3) comprises a knife board (31) fixedly connected with the output shaft end of the speed reducer (4), a knife edge (32) is arranged in the rotation direction of the knife board (31), a side knife opening (33) is fixedly connected to the outer side end of the knife board (31), and the knife board (31) and the side knife opening (33) are E-shaped;
the knife board (31) is movably connected with a baffle (34) between two side knife openings (33), one end of the baffle (34) positioned at the inner side of the knife board (31) is fixedly connected with a permanent magnet block (35), the interior of the knife board (31) is fixedly connected with an electromagnetic block (36) and a mercury switch (37), the mercury switch (37) is electrically connected with the electromagnetic block (36), the electromagnetic block (36) is electrified and magnetic poles with the same polarity of the permanent magnet block (35) are connected, the mercury switch (37) forms a closed circuit when the inclined angle of the knife board (31) is more than or equal to three degrees, the electromagnetic block (36) is controlled to be electrified, and when the knife board (31) rotates to be inclined upwards, the mercury switch (37) controls the electromagnetic block (36) to be electrified and is powered off when the knife board (31) is inclined downwards;
the mercury switch (37) is electrically connected with the electromagnetic block (36), the electromagnetic block (36) is electrified and magnetically connected with the same magnetic pole of the permanent magnet block (35), and the mercury switch (37) forms a closed circuit when the inclined angle of the cutter plate (31) in the inclined direction is more than or equal to three degrees, so that the electromagnetic block (36) is controlled to be electrified.
2. The raw coal bunker body structure according to claim 1, wherein: the hyperbolic tube (2) is arranged in a hyperbolic shape, and the curve end of the hyperbolic tube (2) enlarges the inlet area and increases the size of the inlet of the coal feeder to match with the inlet area.
3. The raw coal bunker body structure according to claim 1, wherein: the pressure detector (7) and the bin vibrator (6) are arranged on the inner side and the outer side of the coal feeding bin (1) and the hyperbola pipe (2) in a layering mode, each pressure detector (7) and each bin vibrator (6) are provided with an independent control unit, and each pressure detector (7) is provided with a matched layering bin vibrator (6).
4. The raw coal bunker body structure according to claim 1, wherein: the data processing module receives the pressure detection data acquired by the signal acquisition module, and further comprises layering processing of the pressure detection data, layering processing is carried out on the data according to layering distribution of the field pressure detectors (7), one layer of pressure sensing data is used as one data set, and a plurality of data sets are matched with the layer number of the field pressure detectors (7).
5. The raw coal bunker body structure according to claim 4, wherein: the logic operation module is used for distinguishing and judging a plurality of data sets distinguished by the data processing module, if a data set with a yes execution result exists, the pressure detector (7) of the data set matched with the execution result synchronously determines the bin vibrators (6) matched with the layered pressure detector (7), the execution driving module is used for receiving the data processing result of the logic operation module, and the execution driving module is used for generating a control instruction for controlling the start of the bin vibrators (6) matched with the data set with the yes execution result.
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| CN202210979901.4A CN115258431B (en) | 2022-08-16 | 2022-08-16 | Raw coal bin body structure |
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| CN202210979901.4A CN115258431B (en) | 2022-08-16 | 2022-08-16 | Raw coal bin body structure |
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| CN115258431B true CN115258431B (en) | 2023-08-08 |
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