CN107617552A - The wide grade intelligence dry separation craft method for arranging of underground coal mine - Google Patents
The wide grade intelligence dry separation craft method for arranging of underground coal mine Download PDFInfo
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- CN107617552A CN107617552A CN201710829269.4A CN201710829269A CN107617552A CN 107617552 A CN107617552 A CN 107617552A CN 201710829269 A CN201710829269 A CN 201710829269A CN 107617552 A CN107617552 A CN 107617552A
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Abstract
The invention discloses a kind of wide grade intelligence dry separation craft method for arranging of underground coal mine, this method opens up intelligent dry separation chamber parallel to main haulage roadway, and opens up relevant connection tunnel, and coarse coal and ultra large coal intelligence dry separation two systems are disposed with intelligent dry separation chamber.The present invention realizes the wide grade downhole intelligent dry separation of+50mm, with technique is simple, small investment, production cost is low, the rate of recovery is high, energy consumption is low, the construction period is short many advantages, such as, research organically blends a variety of intelligent dry coal preparation technologies, applied to underground coal mine, widen processing particle size range, treating capacity is increased, improves that mine is actual to put forward coal ability, alleviates floor treatment spoil pressure.
Description
Technical field
The invention belongs to underground coal mine intelligence dry separation technical field, more particularly to a kind of wide grade intelligence dry separation of underground coal mine
Method for arranging technological process.
Background technology
Substantial amounts of spoil is mixed with the run-of-mine coal (ROM coal) of underground coal mine exploitation, current most direct gugs of colliery run-of-mine coal (ROM coal), through ground
Face processing system realizes coal, cash separation, and Gangue abandoned in hillock, mining area ecological environment and condition are brought very big threat with
Harm.With the raising of environmental consciousness, the environmental standard and related request of exploited thecoal mine process are increasingly strict, and environmental pollution etc. is negative
Face effect is increasingly difficult to be received, or even has influence on the existence in colliery.The harm and spoil comprehensive utilization for eliminating spoil turn into
Coal enterprise, challenge urgently to be resolved hurrily, coal mine waste rock underground emission treatment technology are to meet the important technology of lasting exploit
Research direction.
Technology maturation at present, the coal preparation method having a wide range of application have jigging, dynamic sieve, dense-medium shallow-tank and dense medium cyclone etc.,
But conventional coal cleaning process complex process, corollary equipment are more, are subject to certain restrictions in down-hole application.
The content of the invention
It is an object of the invention to provide a kind of wide grade intelligence dry separation craft method for arranging of underground coal mine, for real in underground
Existing centralized arrangement coarse coal and ultra large coal intelligence separation system, sub-elect spoil not gug, reduce ineffective traffic, strengthen mine
Put forward coal ability.
To reach above-mentioned purpose, the present invention is adopted the following technical scheme that to realize：
The wide grade intelligence dry separation craft method for arranging of underground coal mine, including：
Main shaft main haulage roadway is locally increased, and scalping roller picker is set, the feeding mouth of scalping roller picker connects
Connect leading portion main entry belt discharging opening, scalping roller picker sieve lower discharge port connection back segment main entry belt feeding mouth；
The vertical main shaft main haulage roadway increases section developing lump coal main haulage roadway, and lump coal skin is set along lump coal main haulage roadway
Band, its feeding mouth are connected with scalping roller picker sieve top discharge mouth；
It is vertical with the lump coal main haulage roadway, intelligent dry separation chamber is opened up, secondary point is sequentially arranged in intelligent dry separation chamber
Level roller picker, especially big piece of belt, intelligent robot dirt extraction system, bulk belt and integral intelligent dry coal preparation system；It is secondary
It is classified the outlet of roller picker entrance connection lump coal belt, the lower outlet connection bulk belt entrance of secondary grading roller picker sieve, bulk skin
Band head outlet overlap joint integral intelligent dry coal preparation system entry, integral intelligent dry coal preparation system spoil outlet overlap joint cash
Stone belt, integral intelligent dry coal preparation system cleaned coal outlet overlap joint block cleaned coal belt；Secondary grading roller picker sieve upper outlet is taken
Especially big piece of belt is connect, intelligent robot dirt extraction system is disposed with especially big piece of belt, realizes coal-gangue separation；Bulk belt coal, cash
Stone outlet overlaps block cleaned coal belt, spoil belt, block cleaned coal belt conveyer head outlet overlap joint back segment main entry belt respectively；
By the intelligent dry separation chamber, same level developing block cleaned coal returns coal road road, and coal roadway layout block is returned along block cleaned coal
Cleaned coal belt, block cleaned coal belt conveyer head outlet overlap joint back segment main entry belt.
Further improve of the invention is, by the developing of main shaft main haulage roadway local segment once to sieve chamber, for cloth
Scalping roller picker is put, realizes that run-of-mine coal (ROM coal) is classified with 50mm.
Further improve of the invention is that secondary grading roller picker is used to realize that lump coal is classified with 100mm.
Further improve of the invention is, integral intelligent dry coal preparation system and intelligent robot dirt extraction system, divides
50~100mm of particle diameter coarse coals Yong Yu not realized and more than 100mm lump coal separations, and integral intelligent dry coal preparation system is compared with intelligence
The low 2m of energy robot dirt extraction system, and utilize steel construction construction platform.
Further improve of the invention is that the intermediate arrangement of especially big piece of belt has baffle plate so that especially big piece of essence after sorting
Coal transports in side, and the spoil that intelligent robot dirt extraction system is sorted out when sorting is put into opposite side, realizes the same belt of coal, cash, point
Passage transports.
Further improve of the invention is that the outlet of spoil belt is connected to spoil filling point.
Further improve of the invention is that main shaft main haulage roadway is arranged in parallel with intelligent dry separation chamber, and lump coal transport is big
Lane, block cleaned coal return coal road road and are each perpendicular to main shaft main haulage roadway arrangement, and spoil haulage drift returns coal road road same with block cleaned coal
Side is upwardly arranged at the both sides of intelligent dry separation chamber.
The wide grade intelligence dry separation craft method for arranging of underground coal mine provided by the invention, run-of-mine coal (ROM coal) is through leading portion main entry belt to extremely
Scalping roller picker feeding end, realizes 50mm scalpings, through secondary grading after lump coal is reprinted before scalping roller picker sieve
Roller picker is classified with 100mm, is given under scalping roller picker sieve through chute to back segment main entry belt.Before secondary grading roller picker sieve
Especially big piece is given to especially big piece of belt through chute, through intelligent robot dirt extraction system, after identification, crawl, realizes coal-gangue separation.It is secondary
The lower coarse coal of roller picker sieve is classified through sieving lower chute to coarse coal belt, is given after reprinting to integral intelligent dry coal preparation system
Sorting.Filling point is transported to through spoil belt, especially big piece and big block cleaned coal utilize block cleaned coal skin after especially big piece and the mixing of bulk spoil
Band returns to back segment main entry belt, sieves next with scalping roller picker and is transported to floor treatment.
In short, there is following beneficial effect：
1.+50mm run-of-mine coal (ROM coal)s realize coal-gangue separation in underground, spoil not gug, avoid the invalid lifting of spoil, alleviate ground
Face handles the pressure of spoil.
2. the present invention realizes and a variety of intelligent dry coal preparation technologies organically blend, underground coal mine is arranged in, widens processing grain
Spend scope.
3. realizing wide grade intelligence dry separation system arrangement in underground, optimization design, reduces coal circulation load and ore deposit builds engineering.
Brief description of the drawings
Fig. 1 is the wide grade intelligence dry separation craft arrangement schematic diagram of underground coal mine of the present invention.
Fig. 2 is Fig. 1 I-I to profile.
Fig. 3 is Fig. 1 II-II to profile.
In figure：1- leading portion main entry belts, 2- scalping roller pickers, 3- back segment main entry belts, 4- lump coal belts, 5- bis- times
It is classified roller picker, 6- bulks belt, especially big piece of belt of 7-, 8- intelligent robot dirt extractions system, 9- integral intelligent dry coal preparations
System, 10- block cleaned coals belt, 11- spoil belts, 12- main shaft main haulage roadways, 13- lump coal main haulage roadway, 14- intelligence dry separation caves
Room, 15- block cleaned coals return coal road road, 16- spoils haulage drift, 17- and once sieve chamber.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
Referring to Fig. 1 and Fig. 2, the wide grade intelligence dry separation craft method for arranging of underground coal mine provided by the invention, main haulage roadway
Belt is divided into two sections, i.e. leading portion main entry belt 1 and back segment main entry belt 3, locally increases in main haulage roadway rational position, arrangement one
Secondary classification roller picker 2, underground run-of-mine coal (ROM coal) is given to the feeding mouth of scalping roller picker 2 through the head chute of leading portion main entry belt 1, with 50mm
It is classified, -50mm is given to the back segment main entry belt 3 being arranged under roller picker through sieve lower discharge port under sieve.Lump coal before sieve through going out on sieve
Mouth is given to being arranged on the lump coal belt 4 of local broken kerve section, and intelligent dry separation chamber 14 is entered after reprinting.Transported perpendicular to main shaft
Main entry 12, developing lump coal haulage drift 13, to ensure safe distance between tunnel, chamber, 13 long 30m of lump coal haulage drift, tunnel
Interior arrangement lump coal belt 4, realizes and reprints lump coal to intelligent dry separation chamber 14.
Intelligent dry separation chamber 14 arrangement secondary grading roller picker 5, bulk belt in lump coal main haulage roadway 13, chamber
6th, especially big piece of belt 7, intelligent robot dirt extraction system 8, integral intelligent dry coal preparation system 9, block cleaned coal belt 10, spoil skin
Band 11.Run-of-mine coal (ROM coal) is given to the feeding end of secondary grading roller picker 5 through the head chute of lump coal belt 4, roller picker sieve aperture 100mm, realize with
100mm is classified.Lower 50~100mm the coarse coals of sieve are given to coarse coal belt 6 through the lower outlet of sieve, through integral intelligent dry method after reprinting
Recognition Applied in Coal Preparation System 9 sorts, and realizes coal, cash separation, and coal, cash are given to block cleaned coal belt 10 and spoil belt 11 respectively.+ 100mm on sieve
Especially big piece increases baffle plate, zone face is separated into two passages through being exported before sieve to especially big piece of belt 7, especially big piece of belt centre,
Realize the coal after sorting, the conveying of cash subchannel.Intelligent robot dirt extraction system 8 is arranged on especially big piece of belt 7, is identified through X ray
Afterwards, mechanical hand sorts out especially big block of spoil, puts the spoil passage to belt, especially big block cleaned coal is with spoil respectively with especially big piece of belt
7 move on the discharging at head mixes to block cleaned coal belt 10 and spoil belt 11, big block cleaned coal with especially big block cleaned coal respectively
Reprinted after conjunction through block cleaned coal belt 10 to back segment main entry belt 3, bulk spoil mixed with especially big block of spoil after through spoil belt 11
It is transported to filling point.
The present invention raises 12 local heightening design of main shaft main haulage roadway, the head of leading portion main entry belt 1, is easy to run-of-mine coal (ROM coal) to feed
Follow-up scalping roller picker 2.Scalping roller picker 2 realizes that 50mm is classified, the lower outlet of the sieve of scalping roller picker 2 and sieve
Upper outlet is directly connected to back segment main entry belt 3, lump coal belt 4 respectively.Vertical main shaft main haulage roadway 12, opens up lump coal main haulage roadway
13, arrangement bulk belt 4, tail connection scalping roller picker sieve is lower to be exported, head connecting secondary classification roller picker entrance.
Vertical lump coal main haulage roadway 13 opens up intelligent dry separation chamber, and lower export of the sieve of secondary grading roller picker 5 connects in chamber
Bulk belt 6, the entrance of 6 head connecting integration intelligence dry coal preparation system of bulk belt 9.Integral intelligent dry coal preparation system
9 spoils outlet connection spoil belt 11, the spoil of integral intelligent dry coal preparation system 9 outlet connection block cleaned coal belt 10.It is secondary
Classification roller picker 5 sieves upper outlet and connects especially big piece of belt 7, and intelligent robot dirt extraction system 8 is disposed with especially big piece of belt 7, real
Show coal-gangue separation, dividing plate is provided with the zone face of bulk belt 7, realize coal, the transport of cash subchannel.The coal of bulk belt 7, spoil outlet
Block cleaned coal belt 10, spoil belt 11 are connected respectively.Spoil belt 11 is arranged in spoil haulage drift 16, and outlet connection spoil is filled out
Fill a little.Block cleaned coal belt 10 is arranged in 15- block cleaned coals and returns coal road road, head outlet connection back segment main entry belt 3.
The present invention realizes that 50~100mm bulks are sorted using integral intelligent dry coal preparation system 9, and+100mm is using intelligence
Robot dirt extraction system 8 sorts.
The present invention is in especially big piece of belt 7, intermediate arrangement baffle plate, and especially big piece is transported in side before sorting, and intelligent robot picks
The spoil that cash system 8 is sorted out when sorting is put into opposite side, realizes the same belt of coal, cash, subchannel transport.
Specifically, integral intelligent dry coal preparation system 9 includes X ray identifying system, sensor, control system and height
Air nozzle is pressed, X ray identifying system is used to irradiate material by dual-energy x-ray, due to the feature such as coal and spoil component, density
Difference, it is different to X-ray absorption, so as to be imaged difference, after X ray identifying system is imaged to coal and spoil, and utilize biography
Strong and weak signals are transferred to control system by sensor, and mark is produced coal and spoil and positioned, finally by control pressure-air spray
The switch of mouth realizes impact coal or spoil.
Intelligent robot dirt extraction system 8 includes X ray identifying system, conveying robot and control system, wherein, X ray
Identifying system is used to be identified by X ray coal and spoil, and the positional information that control system is used to calculate spoil passes to peace
Conveying robot above belt feeder, position and time of the conveying robot according to prediction, precalculated position is reached in spoil
When conveying robot perform grasping movement, catch spoil or coal.X ray identifying system include x-ray source, X-ray detector and
Image pick-up card, x-ray source is used to send dual-energy x-ray irradiation material, when the X-ray transparent coal cinder or spoil of appropriate energy
When, because the density of the density ratio coal cinder of spoil is big, thus it is larger through the ray attenuation degree of spoil, and pass through the ray of coal cinder
Attenuation degree is smaller, and using X-ray detector and image pick-up card collection X-ray attenuation signal, and transmit to control system.
Claims (7)
1. the wide grade intelligence dry separation craft method for arranging of underground coal mine, it is characterised in that including：
Main shaft main haulage roadway (12) is locally increased, and scalping roller picker (2) is set, scalping roller picker (2) enter
Material mouth connects leading portion main entry belt (1) discharging opening, scalping roller picker (2) sieve lower discharge port connection back segment main entry belt (3)
Feeding mouth；
The vertical main shaft main haulage roadway (12) increases section developing lump coal main haulage roadway (13), is set along lump coal main haulage roadway (13)
Lump coal belt (4), its feeding mouth are connected with scalping roller picker (2) sieve top discharge mouth；
It is vertical with the lump coal main haulage roadway (13), open up intelligent dry separation chamber (14), the interior cloth successively of intelligent dry separation chamber (14)
Put secondary grading roller picker (5), especially big piece of belt (7), intelligent robot dirt extraction system (8), bulk belt (6) and integrated intelligence
Can dry method Recognition Applied in Coal Preparation System (9)；Secondary grading roller picker (5) entrance connection lump coal belt (4) outlet, secondary grading roller picker (5)
Lower outlet connection bulk belt (6) entrance of sieve, bulk belt (6) head outlet overlap joint integral intelligent dry coal preparation system (9)
Entrance, integral intelligent dry coal preparation system (9) spoil outlet overlap joint spoil belt (11), integral intelligent dry coal preparation system
(9) cleaned coal outlet overlap joint block cleaned coal belt (10)；Secondary grading roller picker (5) sieve upper outlet overlaps especially big piece of belt (7), especially big
Intelligent robot dirt extraction system (8) is disposed with block belt (7), realizes coal-gangue separation；Bulk belt (6) coal, spoil outlet point
Not Da Jie block cleaned coal belt (10), spoil belt (11), block cleaned coal belt (10) head outlet overlap joint back segment main entry belt (3)；
By the intelligent dry separation chamber (14), same level developing block cleaned coal returns coal road road (15), and coal road road is returned along block cleaned coal
(15) block cleaned coal belt (10), block cleaned coal belt (10) head outlet overlap joint back segment main entry belt are arranged.
2. the wide grade intelligence dry separation craft method for arranging of underground coal mine according to claim 1, it is characterised in that by main shaft
Main haulage roadway (12) local segment developing for once sieve chamber (17), for arranging scalping roller picker (2), realize run-of-mine coal (ROM coal) with
50mm is classified.
3. the wide grade intelligence dry separation craft method for arranging of underground coal mine according to claim 1, it is characterised in that secondary point
Level roller picker (5) is used to realize that lump coal is classified with 100mm.
4. the wide grade intelligence dry separation craft method for arranging of underground coal mine according to claim 1, it is characterised in that integration
Intelligent dry coal preparation system (9) and intelligent robot dirt extraction system (8), be respectively used to realize 50~100mm of particle diameter coarse coals and
More than 100mm lump coal separations, and the low 2m of integral intelligent dry coal preparation system (9) relatively intelligent robot dirt extraction system (8), and profit
With steel construction construction platform.
5. the wide grade intelligence dry separation craft method for arranging of underground coal mine according to claim 1, it is characterised in that especially big piece
The intermediate arrangement of belt (7) has baffle plate so that especially big block cleaned coal is transported in side after sorting, intelligent robot dirt extraction system (8)
The spoil sorted out during sorting is put into opposite side, realizes the same belt of coal, cash, subchannel transport.
6. the wide grade intelligence dry separation craft method for arranging of underground coal mine according to claim 1, it is characterised in that spoil skin
Band (11) outlet is connected to spoil filling point.
7. the wide grade intelligence dry separation craft method for arranging of underground coal mine according to claim 1, it is characterised in that main shaft is transported
Defeated main entry (12) is arranged in parallel with intelligent dry separation chamber (14), and lump coal main haulage roadway (13), block cleaned coal are returned coal road road (15) and hung down
Directly arranged in main shaft main haulage roadway (12), spoil haulage drift (16) returns coal road road (15) with block cleaned coal and arranged in the same direction
In the both sides of intelligent dry separation chamber (14).
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108465542A (en) * | 2018-03-23 | 2018-08-31 | 合肥工业大学 | A kind of coal downhole intelligent separation system device layout |
| 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 |
| CN111744662A (en) * | 2020-07-23 | 2020-10-09 | 中国矿业大学 | Underground movable intelligent mining and selecting modular process method |
| CN112090479A (en) * | 2020-09-21 | 2020-12-18 | 马钢集团设计研究院有限责任公司 | Dry-type pre-selection system and process for low-grade chromite |
| CN112403647A (en) * | 2020-10-27 | 2021-02-26 | 中煤能源研究院有限责任公司 | Arrangement method of intelligent dry separation system for underground transfer points |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101670310A (en) * | 2009-09-22 | 2010-03-17 | 王迪业 | Dense-medium shallow-groove separating and waste-rock exhausting system used under coal mine |
| CN201500577U (en) * | 2009-09-22 | 2010-06-09 | 王迪业 | Heavy medium shallow slot sorting mine underground refuse discharging system |
| US20120298562A1 (en) * | 2011-05-25 | 2012-11-29 | Vandemierden John | Ash processing and metals recovery systems and methods |
| CN103480482A (en) * | 2013-09-26 | 2014-01-01 | 王迪业 | Flowing current separation process coal mine underground gangue dumping system |
| CN204746555U (en) * | 2015-05-29 | 2015-11-11 | 天地科技股份有限公司 | Colliery is two washing systems in pit |
| CN206356260U (en) * | 2016-12-20 | 2017-07-28 | 中煤西安设计工程有限责任公司 | A kind of intelligent dry separation system of wide grade |
-
2017
- 2017-09-14 CN CN201710829269.4A patent/CN107617552A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101670310A (en) * | 2009-09-22 | 2010-03-17 | 王迪业 | Dense-medium shallow-groove separating and waste-rock exhausting system used under coal mine |
| CN201500577U (en) * | 2009-09-22 | 2010-06-09 | 王迪业 | Heavy medium shallow slot sorting mine underground refuse discharging system |
| US20120298562A1 (en) * | 2011-05-25 | 2012-11-29 | Vandemierden John | Ash processing and metals recovery systems and methods |
| CN103480482A (en) * | 2013-09-26 | 2014-01-01 | 王迪业 | Flowing current separation process coal mine underground gangue dumping system |
| CN204746555U (en) * | 2015-05-29 | 2015-11-11 | 天地科技股份有限公司 | Colliery is two washing systems in pit |
| CN206356260U (en) * | 2016-12-20 | 2017-07-28 | 中煤西安设计工程有限责任公司 | A kind of intelligent dry separation system of wide grade |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108465542A (en) * | 2018-03-23 | 2018-08-31 | 合肥工业大学 | A kind of coal downhole intelligent separation system device layout |
| CN108465542B (en) * | 2018-03-23 | 2020-10-09 | 合肥工业大学 | Equipment layout of underground intelligent coal sorting system |
| 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 |
| CN111744662A (en) * | 2020-07-23 | 2020-10-09 | 中国矿业大学 | Underground movable intelligent mining and selecting modular process method |
| CN112090479A (en) * | 2020-09-21 | 2020-12-18 | 马钢集团设计研究院有限责任公司 | Dry-type pre-selection system and process for low-grade chromite |
| CN112403647A (en) * | 2020-10-27 | 2021-02-26 | 中煤能源研究院有限责任公司 | Arrangement method of intelligent dry separation system for underground transfer points |
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