CN105537145A - Intelligent lump coal dry method inverted separation system - Google Patents
Intelligent lump coal dry method inverted separation system Download PDFInfo
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- CN105537145A CN105537145A CN201610001790.4A CN201610001790A CN105537145A CN 105537145 A CN105537145 A CN 105537145A CN 201610001790 A CN201610001790 A CN 201610001790A CN 105537145 A CN105537145 A CN 105537145A
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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
- B07C5/3416—Sorting according to other particular properties according to radiation transmissivity, e.g. for light, x-rays, particle radiation
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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
- B07C5/36—Sorting apparatus characterised by the means used for distribution
- B07C5/363—Sorting apparatus characterised by the means used for distribution by means of air
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Abstract
The invention aims to provide an intelligent lump coal dry method inverted separation system. After supplied raw coal materials are screened through a raw coal classifying screen, raw lump coal enters an intelligent dry separation machine, and are identified by X-rays as clean coal, gangue and other things. The intelligent lump coal dry method inverted separation system is characterized in that conventional gangue blowing operation of intelligent dry separation is turned into coal blowing operation, and the intelligent dry separation machine enables an air spray nozzle which corresponds to the clean coal and is controlled by a high-frequency solenoid valve to be opened according to identifying information of the X-rays, so that the clean coal deviates from the raw coal movement trail, and the clean coal is separated from the gangue and the other things. The intelligent dry separation machine is a dry method separation device which utilizes the rays to conduct intelligent identifying separation on minerals, the clean coal and the gangue are identified according to the difference of the capacities of the clean coal and the gangue for absorbing the rays, and the air spray nozzle serves as an execution mechanism. According to the invention, the intelligent lump coal dry method inverted separation system can be applied to coal preparation plants with a large amount of gangue and a plurality of overlarge blocks and other things so that the problem that an existing conventional intelligent dry method gangue removal system is difficult to handle with overlarge blocks and other things can be solved, and the air consumption and the energy consumption can be reduced.
Description
Technical field
The invention belongs to dry coal preparation technical field, being specifically related to a kind of lump coal intelligence, dry method is counter selects system.
Background technology
Coal dry separation based on ray identification has without water, technique is simple, small investment, production cost are low advantage.From 2005, this technology carried out practical application at coal industry gradually, Liang Bei colliery as fiery in god, Mu Chengjian colliery, Beijing etc.The existing automatic separator of coal gangue of automatic separator of coal gangue disclosed in Chinese patent CN101637765B based on ray identification, it comprises feedstock bucket, coal receiving hopper, spoil receiving hopper, be arranged on described feedstock bucket and coal, conveyer belt conveyer between spoil receiving hopper, identify selection control mechanism and executing agency, described identification selection control mechanism comprises the gamma-ray source be arranged on below conveyer belt, be positioned at the radiation transducers corresponding to described gamma-ray source position above conveyer belt, the measure and control instrument be electrically connected with radiation transducers and be arranged on the ultrasonic transmitter-receiver be electrically connected with measure and control instrument be positioned at above conveyer belt, described executing agency is arranged on the high-frequency electromagnetic valve above coal, spoil receiving hopper, the valve port of described high-frequency electromagnetic valve leaves track arrange towards coal, spoil.
Existing automatic separator of coal gangue is all the spoils identified in raw coal, to be jetted spoil (namely " beating cash "), make spoil depart from original track, spoil discharge the most at last by air nozzle." beat cash ", its advantage is high to efficiency of separation tolerance.The spoil as long as jet is few containing coal amount, does not cause a large amount of waste pack coals just passable.Even if there is larger a part of spoil not to be separated, also by subsequent job link, spoil can be discharged.For some coal preparation plants, its ature of coal can to accept in coal still entrainment portions spoil.
This conventional sorting mode has above advantage " to beat cash ", but also has the following disadvantages.
(1) when spoil amount is large, winding-up difficulty strengthens, and energy consumption increases.Have Part Coal Mine, spoil amount is far more than 50%, and especially when down-hole driving or passing fault, spoil content even reaches more than 80%.If continue " beating cash " in this case, winding-up difficulty can strengthen, and the efficiency of separation can reduce.Even if the lectotype selection of the high-frequency electromagnetic valve that selected frequency is higher or increasing air feed system adapts to this special circumstances, also can therefore cause invisible waste to increase, energy consumption increases.
(2) to super large block difficult treatment.In theory, the granularity of the largest block of coal preparation plant is 300mm, but in actual production, because down-hole raw coal size controls not strict, coal preparation plant's granularity is still many at the super large block of 400-600mm, and some super large block, granularity reaches about 1000mm.Due to the difference of coal and spoil hardness properties, this part super large block is all spoil substantially, this part super large block spoil, and volume is large, and density is large, and quality is large, and the high-frequency electromagnetic valve winding-up power of conventional design is limited, and jet out from raw coal by it, difficulty is larger.
(3) helpless to foreign material.In raw coal, be generally mixed with a lot of foreign material, such as woven bag, rope, wooden unit, sebific duct, iron wire etc.This part foreign material, especially rope, iron wire, sebific duct etc., because shape is special, by compressed air spraying, be difficult to it to separate from coal.If this part foreign material is not separated, be mixed in coal, not only affect product quality, also can produce blocking chute, be wound around the consequences such as sprocket wheel.
In view of above reason, be necessary to provide the backhand of a kind of lump coal intelligence dry method to select system, " beating cash " become " beating coal ", goes to overcome the above problems from another angle, thus expand intelligent dry separation further in the range of application of coal preparation plant, improve its effect.
Summary of the invention
The object of this invention is to provide a kind of lump coal intelligence, dry method is counter selects system, is applied in the coal preparation plant that spoil amount is large, super large block is many, foreign material are many, to make up the deficiency of existing normal procedure intelligent dry method waste stone exhaust system.
Dry method is counter selects system for a kind of lump coal intelligence, and raw coal supplied materials is after raw coal sizing screen screening, and block raw coal enters intelligent dry-dressing machine, is identified as cleaned coal, spoil and foreign material through x-ray.It is characterized in that: intelligent dry separation tradition " is beaten cash " and becomes " beating coal ", intelligence dry-dressing machine is according to the identifying information of X-ray, open the air nozzle controlled by high-frequency electromagnetic valve of corresponding cleaned coal position, cleaned coal is departed from from raw coal movement locus, cleaned coal and spoil and foreign material are separated.
Described intelligent dry-dressing machine, is characterized in that adopting intelligent identification Method, sets up the analytical model adapted with it, by large data analysis, carry out digitlization identification, eventually through intelligent executive system by coal-gangue separation to coal and spoil for different Coal Characteristics.TDS intelligence dry separation system comprises feeding system, distribution device, recognition device, the large Major Systems of executing agency four, and air feed system, dust pelletizing system, electric-control system three accessory systems.Described feeding system is positioned at the feeding end of cloth system, and raw material is evenly fed on distribution device by feeding system; Described recognition device is the x-ray source be positioned at above distribution device and the X-ray detector be positioned at below distribution device; Described executing agency is the air nozzle of outlet towards cleaned coal, spoil movement locus, described recognition device is except the physical property by cleaned coal and spoil identifies cleaned coal and spoil, also by cleaned coal and spoil, the positional information on distribution device exports to executing agency, the air nozzle of executing agency is decorated in array, according to the air nozzle of intelligent opening relevant position, position being performed object.
In mine run-of-mine coal (ROM coal), the general super large block containing a large amount of more than 300mm.Due to the difference of coal and spoil hardness, in these super large blocks, be substantially all spoil, coal is fewer.Even super large lump coal, due to less (the general 2.2-2.6g/cm of spoil density of density
3, the density of coal is generally 1.3-1.5g/cm
3), the spoil of its quality also comparatively with grade is much little, therefore, adopts and instead selects system, and using coal as winding-up object, difficulty greatly reduces.Therefore, compared with conventional " beating cash ", " beating coal " can not limit its upper limit, namely applies the present invention, can directly process mine run-of-mine coal (ROM coal), and does not need the pretreatment carrying out getting rid of super large block to it.
In mine run-of-mine coal (ROM coal), for woven bag, rope, sebific duct, iron wire etc. foreign material.Adopt the present invention, only by cleaned coal nozzle out, foreign material just enter in spoil along former track." beating cash " is become " beating coal " by the present invention, avoid completely foreign material due to shape special, stress surface is little, be difficult to by high-frequency electromagnetic valve jet problem.
Described raw coal sizing screen, its on-the-sieve material enters intelligent dry-dressing machine, undersize material, directly as last raw coal production marketing, also can enter other separation system process follow-up.
Using coal as winding-up object, also bring another problem thereupon, be exactly containing a large amount of fine graineds in raw coal, intelligence dry separation performs by " grain ", and fine grained volume is little, and quantity is many, and the injector spacing adapting to normal particle sizes is large, winding-up power is large, performs frequency low, is difficult to these granules to blow out one by one.The present invention adopts following scheme to solve this problem.
In ray recognition device, arrange the granularity lower limit of detected material, for fine grained, ray system does not send its positional information, and also do not open high-frequency electromagnetic valve winding-up, this part fine grained, with spoil, enters slate chute.At slate chute, inner or below, arranges vibration screening device, and the lower fine grained of sieve enters last raw coal, and on sieve, spoil dumps after reprinting conveying.The granularity of ray detection of the present invention and the slot size of spoil vibration screening device match.
In ray recognition device, increase Recognize program, can accurately identify the foreign material such as woven bag, rope, wooden unit.
Sieve link by spoil, some fail the fine particulate coal selected in intelligent dry-dressing machine, are again recovered, certainly, except fine particulate coal, fine grained spoil also enters in last raw coal, because this part spoil granularity is little, ratio is little, mixes in last raw coal and does not affect the sale of last raw coal.In some applications, last raw coal also can enter follow-up separation link and is discharged.
By the block cleaned coal that high-frequency electromagnetic valve is selected, can directly as block head coal product, can as fine cleaned coal product after fragmentation, also can mix last raw coal under raw coal sizing screen.
The stage casing of belt distributing device on intelligent dry-dressing machine, can select to arrange movable shield, configures a picking position, when catastrophic failures such as intelligent dry-dressing machine x-ray sources, can adopt provisional picking, not affect coal preparation plant and normally produce.The belt distributing device of intelligence dry-dressing machine, its belt speed, higher than common conveyer picker, when adopting interim picking, reduces belt distributing device speed by frequency converter.
Intelligence dry-dressing machine air nozzle controls it by high-frequency electromagnetic valve and opens and closes, and air accumulator is connected with high-frequency electromagnetic valve by airduct, and high-frequency electromagnetic valve is connected with air nozzle by airduct.
For improving accuracy of identification, intelligent dry-dressing machine recognition device is except the physical property by cleaned coal and spoil identifies cleaned coal and spoil, and also by cleaned coal and spoil, the positional information on distribution device exports to follow-up executing agency.Air nozzle is decorated in array, the high-frequency electromagnetic valve that sorting actuating mechanism is corresponding according to the position intelligent opening being performed object.
The present invention is provided with air feed system, air accumulator storing compressed air, and press filtration air comes from the air compressor machine or existing air compressor house that arrange separately, and compressed air carries out drying and filtration treatment before entering magnetic valve.
The present invention is provided with dust pelletizing system, by the dust removing produced because of air blown, keeps environment clean.
The present invention brings following beneficial effect.
The present invention can be applicable to the coal preparation plant that spoil amount is large, super large block is many, foreign material are many, to solve existing normal procedure intelligent dry method waste stone exhaust system to super large block and the reluctant problem of foreign material, and can reduce invisible waste and energy consumption.
Accompanying drawing explanation
Fig. 1: dry method is counter selects system schematic for a kind of lump coal intelligence.
In figure: 1-raw coal sizing screen; Chute before 2-raw coal sizing screen sieve; The lower chute of 3-raw coal sizing screen sieve; 4-belt distributing device; 5-X radiographic source; 6-X ray linear array detector; The air nozzle that 7-is controlled by high-frequency electromagnetic valve; 8-air accumulator; The interim hand picked refuse chute of 9-; 10-spoil and foreign material chute; 11-cleaned coal chute; 12-spoil vibration screening device; Chute before 13-spoil vibration screening device sieve; The lower chute of 14-spoil vibration screening device sieve; 15-cleaned coal disintegrating machine; 16-cleaned coal disintegrating machine discharge chute; 17-dust arrester.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiments of the invention are described further:
As shown in Figure 1, dry method is counter selects system for a kind of lump coal intelligence, and raw coal supplied materials is after raw coal sizing screen screening, and block raw coal enters intelligent dry-dressing machine, is divided into cleaned coal, spoil and foreign material through x-ray identification.It is characterized in that: intelligent dry separation tradition " is beaten cash " and becomes " beating coal ", intelligence dry-dressing machine is according to the identifying information of X-ray, open the air nozzle controlled by high-frequency electromagnetic valve of corresponding cleaned coal position, cleaned coal is departed from from raw coal movement locus, cleaned coal and spoil and foreign material are separated.Described intelligent dry-dressing machine is the dry separation equipment adopting ray mineral to be carried out to Intelligent Recognition sorting, and according to cleaned coal and spoil, the difference to ray absorption identifies cleaned coal and spoil, adopts air nozzle as executing agency.
Raw material is through raw coal sizing screen 1 classification, lump coal enters the front chute 2 of raw coal sizing screen sieve, smalls enters the lower chute 3 of raw coal sizing screen sieve, block raw coal transits on belt distributing device 4 by chute 2 before raw coal sizing screen sieve, belt distributing device 4 completes cloth, realizing the arrangement of thing block individual layer, and all have certain spacing between each object and front, rear, left and right neighbors block, creating conditions for detecting execution.Through x-ray source 5, X-ray linear array detector 6, block raw coal judges that this thing block is cleaned coal or spoil, and its positional information is exported to control system, control system is according to the position of block cleaned coal, open one or more air nozzles of relevant position in the air nozzle 7 controlled by high-frequency electromagnetic valve, the cleaned coal be blowed is collected by cleaned coal chute 11, spoil and foreign material keep original movement locus, are collected by spoil and foreign material chute 10, thus the dry method completing raw coal is counter selects process.
Spoil and foreign material, after chute 10 chute is collected, enter spoil vibration screening device 12, and bulk spoil chute 13 before spoil vibration screening device sieve is discharged, and the fine grained in spoil enters last raw coal after sieving lower chute 14 by spoil vibration screening device.Through the block cleaned coal sorted out that cleaned coal chute 11 is collected, directly as block head coal product, can mix raw coal sizing screen 1 time last raw coal, also after cleaned coal disintegrating machine 15 fragmentation, can be discharged as fine cleaned coal product by cleaned coal disintegrating machine discharge chute 16.
The dust removing that dust pelletizing system 17 will produce because of air blown, keeps environment clean.Air accumulator 8 provides wind regime for the air nozzle 7 controlled by high-frequency electromagnetic valve.
The announcement of book and instruction according to the above description, those skilled in the art in the invention can also change technique scheme and revise.But the present invention is not limited to above-mentioned concrete technical scheme, any apparent improvement of every those skilled in the art done by basis of the present invention, replacement or modification all belong to protection scope of the present invention.In addition, although employ some specific terms in this description, these terms just for convenience of description, do not form any restriction to the present invention.
Claims (6)
1. dry method is counter selects a system for lump coal intelligence, and raw coal supplied materials is after raw coal sizing screen screening, and block raw coal enters intelligent dry-dressing machine, is identified as cleaned coal, spoil and foreign material through x-ray; It is characterized in that: traditional for intelligent dry separation " beating cash " is become " beating coal ", intelligence dry-dressing machine is according to the identifying information of X-ray, open the air nozzle controlled by high-frequency electromagnetic valve of corresponding cleaned coal position, cleaned coal is departed from from raw coal movement locus, cleaned coal and spoil and foreign material are separated.
2. dry method is counter selects system for a kind of lump coal intelligence according to claim 1, it is characterized in that: described intelligent dry-dressing machine comprises feeding system, distribution device, recognition device, the large Major Systems of executing agency four, and air feed system, dust pelletizing system, electric-control system three accessory systems; Described feeding system is positioned at the feeding end of cloth system, and raw material is evenly fed on distribution device by feeding system; Described recognition device is the x-ray source be positioned at above distribution device and the X-ray detector be positioned at below distribution device; Described executing agency is the air nozzle of outlet towards cleaned coal, spoil movement locus, described recognition device is except the physical property by cleaned coal and spoil identifies cleaned coal and spoil, also by cleaned coal and spoil, the positional information on distribution device exports to executing agency, the air nozzle of executing agency is decorated in array, according to the air nozzle of intelligent opening relevant position, position being performed object.
3. dry method is counter selects system for a kind of lump coal intelligence according to claim 1, it is characterized in that: in ray recognition device, the granularity lower limit of detected material is set, for fine grained, ray system does not send its positional information, also do not open high-frequency electromagnetic valve winding-up, this part fine grained, with spoil, enters slate chute.
4. dry method is counter selects system for a kind of lump coal intelligence according to claim 1, it is characterized in that: in ray recognition device, increase Recognize program, can accurately identify the foreign material such as woven bag, rope, wooden unit.
5. dry method is counter selects system for a kind of lump coal intelligence according to claim 1, it is characterized in that: the inner or below at slate chute, vibration screening device is set, the lower fine grained of sieve enters last raw coal, on sieve, spoil dumps after reprinting conveying, and the granularity of ray detection and the slot size of spoil vibration screening device match.
6. dry method is counter selects system for a kind of lump coal intelligence according to claim 1, it is characterized in that: the stage casing of belt distributing device on intelligent dry-dressing machine, can select to arrange movable shield, configure a picking position, when catastrophic failures such as intelligent dry-dressing machine x-ray sources, can adopt provisional picking, not affecting coal preparation plant normally produces, when adopting interim picking, reduce belt distributing device speed by frequency converter.
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Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105935664A (en) * | 2016-06-22 | 2016-09-14 | 天津美腾科技有限公司 | Dual-channel TDS (Telligent Dry Separator) |
| CN106862103A (en) * | 2017-01-09 | 2017-06-20 | 唐山市神州机械有限公司 | A kind of intelligent dry method waste stone exhaust system and method for being applied to underground coal mine |
| CN107755283A (en) * | 2017-10-26 | 2018-03-06 | 天津美腾科技有限公司 | Underground coal mine dry separation waste rock discharge device and technique |
| CN108311410A (en) * | 2018-01-27 | 2018-07-24 | 华北科技学院 | A kind of dry method lump material sorting unit based on terahertz imaging |
| CN109675792A (en) * | 2018-12-27 | 2019-04-26 | 中国神华能源股份有限公司 | Dry-dressing machine charging gear and feeding method |
| CN110052421A (en) * | 2019-04-29 | 2019-07-26 | 山东华特磁电科技股份有限公司 | A kind of coal mine method for separating based on X-ray sensing |
| CN110052409A (en) * | 2019-05-24 | 2019-07-26 | 天津美腾科技有限公司 | Raw coal sorting system |
| CN110075986A (en) * | 2019-04-19 | 2019-08-02 | 神华准格尔能源有限责任公司 | Open coal mine packaged type lump coal dry separation system and method |
| CN110434089A (en) * | 2019-08-16 | 2019-11-12 | 天津美腾科技有限公司 | Raw coal sorting process and raw coal sorting system |
| CN110624850A (en) * | 2019-10-28 | 2019-12-31 | 拜城县众泰煤焦化有限公司 | Automatic sorting device for lump coal and large gangue |
| CN111054635A (en) * | 2019-11-12 | 2020-04-24 | 河北玖河精密机械制造有限公司 | JHDDS intelligent gangue selecting method and device |
| CN111185405A (en) * | 2020-04-09 | 2020-05-22 | 天津美腾科技股份有限公司 | Underground dry separation integrated system and underground separation and transportation production line |
| CN111229638A (en) * | 2020-01-19 | 2020-06-05 | 安徽理工大学 | Multichannel scattered queue coal and gangue sorting equipment based on X-ray identification |
| CN111338228A (en) * | 2020-05-20 | 2020-06-26 | 天津美腾科技股份有限公司 | Sorting parameter control method, device and equipment of dry sorting machine and storage medium |
| CN111434396A (en) * | 2019-01-14 | 2020-07-21 | 天津美腾科技有限公司 | Mobile mineral dry separation system and mobile mineral dry separation method |
| CN112439703A (en) * | 2020-11-26 | 2021-03-05 | 合肥约翰芬雷矿山装备有限公司 | Durable type ore edulcoration device of intelligence |
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| CN105935664A (en) * | 2016-06-22 | 2016-09-14 | 天津美腾科技有限公司 | Dual-channel TDS (Telligent Dry Separator) |
| CN106862103A (en) * | 2017-01-09 | 2017-06-20 | 唐山市神州机械有限公司 | A kind of intelligent dry method waste stone exhaust system and method for being applied to underground coal mine |
| CN107755283A (en) * | 2017-10-26 | 2018-03-06 | 天津美腾科技有限公司 | Underground coal mine dry separation waste rock discharge device and technique |
| CN108311410A (en) * | 2018-01-27 | 2018-07-24 | 华北科技学院 | A kind of dry method lump material sorting unit based on terahertz imaging |
| CN109675792A (en) * | 2018-12-27 | 2019-04-26 | 中国神华能源股份有限公司 | Dry-dressing machine charging gear and feeding method |
| CN111434396B (en) * | 2019-01-14 | 2024-03-19 | 天津美腾科技有限公司 | Mobile mineral dry separation system and mobile mineral dry separation method |
| CN111434396A (en) * | 2019-01-14 | 2020-07-21 | 天津美腾科技有限公司 | Mobile mineral dry separation system and mobile mineral dry separation method |
| CN110075986B (en) * | 2019-04-19 | 2021-06-29 | 神华准格尔能源有限责任公司 | Movable lump coal dry separation system and method for open pit coal mine |
| CN110075986A (en) * | 2019-04-19 | 2019-08-02 | 神华准格尔能源有限责任公司 | Open coal mine packaged type lump coal dry separation system and method |
| CN110052421A (en) * | 2019-04-29 | 2019-07-26 | 山东华特磁电科技股份有限公司 | A kind of coal mine method for separating based on X-ray sensing |
| CN110052421B (en) * | 2019-04-29 | 2021-07-27 | 山东华特磁电科技股份有限公司 | Coal mine sorting method based on X-ray sensing |
| CN110052409A (en) * | 2019-05-24 | 2019-07-26 | 天津美腾科技有限公司 | Raw coal sorting system |
| CN110434089A (en) * | 2019-08-16 | 2019-11-12 | 天津美腾科技有限公司 | Raw coal sorting process and raw coal sorting system |
| CN110624850A (en) * | 2019-10-28 | 2019-12-31 | 拜城县众泰煤焦化有限公司 | Automatic sorting device for lump coal and large gangue |
| CN111054635A (en) * | 2019-11-12 | 2020-04-24 | 河北玖河精密机械制造有限公司 | JHDDS intelligent gangue selecting method and device |
| CN111229638A (en) * | 2020-01-19 | 2020-06-05 | 安徽理工大学 | Multichannel scattered queue coal and gangue sorting equipment based on X-ray identification |
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