CN101543802A - Sorting technology for coarse coal slurry damping pulsation interference bed - Google Patents
Sorting technology for coarse coal slurry damping pulsation interference bed Download PDFInfo
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- CN101543802A CN101543802A CN200810049397A CN200810049397A CN101543802A CN 101543802 A CN101543802 A CN 101543802A CN 200810049397 A CN200810049397 A CN 200810049397A CN 200810049397 A CN200810049397 A CN 200810049397A CN 101543802 A CN101543802 A CN 101543802A
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Abstract
The invention discloses sorting technology for a coarse coal slurry damping pulsation interference bed. The sorting technology is formed by the mutual connection of an interference bed sorter, a feeding system, a peristaltic pump, a cleaned coal recovering system, and a water pump, and is characterized in that the inside of the interference bed sorter is added with a plurality of damping blocks and screens; the middle part of the interference bed sorter is connected with the feeding system to form a stable fluid bed; simultaneously, a diaphragm is additionally arranged on the lower part of the interference bed sorter and the upper part of a heavy product discharge port to generate a pulsating flow, so that particles with different densities gain the accelerating effect and retarding effect, and the leading action of the density on the separation effect is strengthened; the peristaltic pump is used for discharging heavy products, so that the processing capability of the equipment is improved; under the conditions of wide particle size range of the coarse coal slurry and heavy processing load, the good separation effect and high separation efficiency can also be achieved by the separation process.
Description
Technical field:
The invention belongs to the sorting technology for coarse coal slurry damping pulsation interference bed field.
Background technology:
Disturbing the bed sorting technology is to be come by ancient hydraulic classifier development, it utilizes heavy product in the pan feeding under the ascending current effect, realize that fluidization is to improve the density of suspension, thereby material is separated according to the difference of sinking speed, when the particle size range of pan feeding is narrower, density plays a leading role to the influence of sinking speed, at this moment can be considered by density separation.Outstanding shortcoming when tradition disturbs the bed sorting technology to be used for separation of coarse slime is, require the particle size range of pan feeding narrower, when material size wider range, granularity shows fairly obviously to the adverse effect of sorting, low-density rough grain is easy to enter into highdensity underflow, though can strengthen the recovery of the rough grain of low-density by the method that improves ascending current speed, high ascending current speed can cause the high density fine grained to enter into overflow launder again, causes the efficiency of separation to reduce.This mainly be since traditional interference bed sorting technology only adopted single ascending current, and in whole sorting chamber ascending current speed constant substantially due to.
Summary of the invention:
The purpose of this invention is to provide a kind of sorting technology for coarse coal slurry damping pulsation interference bed that under the bigger situation of coarse slime particle size range broad, treating capacity, still can obtain good separating effect, improve the efficiency of separation.
To achieve these goals; the present invention is by hindered bed separator; feeding system; peristaltic pump; the cleaned coal recovery system; water pump interconnects and forms; at inner some damping blocks and the screen cloth of adding of hindered bed separator; at the hindered bed separator middle part; connect feeding system to form stable fluidization bed; simultaneously in the screening installation bottom; the top of heavy product discharge gate is set up barrier film and is produced fluctuating flow; make the particle of different densities obtain to quicken; retarding efffect; strengthen the leading role of density to separating effect; adopt the heavy product of peristaltic pump discharging, increase the device processes ability.
Described feeding system is made of agitator, densimeter, flowmeter, valve, feed pipe.
Described cleaned coal recovery system is made of desliming screen, Ash analyser, controller.
Like this, significantly improve separating effect, make separator when material size wider range, still can obtain good separating effect thereby fluctuating flow can improve the loose condition (of surface) of fluidization bed effectively.The introducing of damping block and screen cloth makes the fluidised form of liquid fixed double phase flow in the separator body distribute more to become rationally, and the formation of eddy current can be eliminated the intergranular phenomenon that is mingled with effectively, improves the efficiency of separation.Can be easily adjust the operating mode of separator by regulating the amplitude and the frequency of fluctuating flow, be aided with the rotating speed of regulating peristaltic pump, satisfy demand of practical production according to the quality requirement of the ature of coal situation of feed coal and product.The application of peristaltic pump can be quickened the mass rate of emission of heavy product, thereby increases the disposal ability of equipment.The middle part enter material way has reduced the sorting time of heavy product, has alleviated the mix situation of high density fine grained in light product simultaneously.
Description of drawings:
Below in conjunction with accompanying drawing the present invention is described in further detail.
Fig. 1 is that component system of the present invention connects schematic diagram.
The specific embodiment:
As shown in Figure 1, the present invention is interconnected and is formed by hindered bed separator, feeding system, peristaltic pump 1, cleaned coal recovery system, water pump 15.Feeding system is made of agitator 6, densimeter 7, flowmeter 8, valve 9, feed pipe 10.The cleaned coal recovery system is made of desliming screen 4, Ash analyser 3, controller 2.Coal slurry enters in the sorting chamber of hindered bed separator through the middle part of an outside feed pipe by hindered bed separator after agitator 6 stirs, and densimeter, flowmeter and valve are to realize the automatic control of feed.It is six parts that hindered bed separator is divided into, and is followed successively by from top to bottom: cleaned coal overflow segment, selected section of cleaned coal, fluidized-bed interval, selected section of tail coal, fluctuating flow segment occurred and base cone section.Coal slurry at first enters into and is positioned at a fluidized-bed interval that disturbs the bed middle part, and a pan feeding buffer 11 is set at the feeding mouth place, to avoid the stable state of the fluidization bed that the pan feeding process influence formed already.All add screen cloth 13 with the cutting current on selected section porch and fluctuating flow layer top of cleaned coal with selected section of tail coal, improving fluidised form distributes to strengthen separating effect, two selected intersegmental parts are all set up damping block 12 simultaneously, slip flow velocity by this damping the time changes, part coarse grain cleaned coal will enter smoothly and go in the overflow or break away from selected section of tail coal to reenter the fluidization bed and carry out recleaning, also imitate the mechanical entrainment phenomenon that has alleviated the heavy product of particulate simultaneously, effectively improve separating effect.Simultaneously in the separator bottom; barrier film is set up on the top of heavy product discharge gate; work with pulsating wave generator 14 1 and to produce fluctuating flow; the ripple frequency of fluctuating flow, amplitude can be regulated; make the particle of different densities obtain acceleration, retarding efffect; strengthen the leading role of density to separating effect, the fluctuating flow that the reciprocating motion by barrier film produces can not only improve the friable state of fluidization bed effectively, has alleviated the adverse effect of raw meal particle size to layering.After coal slurry enters hindered bed separator, meet and form the fluidization bed with squeeze into ascending current that separator bottom produces by fluid distributor 16 by water pump 15, contained solid particle is done the hindered falling motion in the coal slurry in separator, when reaching stable state, the particle that density is higher than fluidization bed averag density just penetrates bed downwards and enters selected section of tail coal, and just upwards penetrating bed enters selected section of cleaned coal and density is lower than the particle of fluidization bed averag density.Adopt the heavy product of peristaltic pump 1 discharging, realize automatically discharge fast, increase the device processes ability by the rotating speed of adjusting peristaltic pump.
The cleaned coal overflow that enters into spill box 5 by selected section of cleaned coal becomes final cleaned coal after through a high frequency desliming screen desliming, finally on the cleaned coal travelling belt ash content of an online Ash analyser 3 with real-time detection cleaned coal is being installed, and further passed through the fluctuating flow segment occurred after the concentrated back of base cone collection is discharged by a peristaltic pump 1 by the tail coal of selected section of tail coal.The rotating speed of peristaltic pump is handled by a PID controller, and the signal of PID controller is provided by the cleans ash instrument.Best separating effect can be obtained by the flow velocity of adjusting ascending current, the frequency and the amplitude of barrier film pulsation, the ash content of final cleaned coal can be effectively controlled by the rotating speed of control peristaltic pump.
Claims (3)
1; a kind of sorting technology for coarse coal slurry damping pulsation interference bed; by hindered bed separator; feeding system; peristaltic pump; the cleaned coal recovery system; water pump interconnects and forms; it is characterized in that at inner some damping blocks and the screen cloth of adding of hindered bed separator; at the hindered bed separator middle part; connect feeding system to form stable fluidization bed; simultaneously in the screening installation bottom; the top of heavy product discharge gate is set up barrier film and is produced fluctuating flow; make the particle of different densities obtain to quicken; retarding efffect; strengthen the leading role of density to separating effect; adopt the heavy product of peristaltic pump discharging, increase the device processes ability.
2, sorting technology for coarse coal slurry damping pulsation interference bed according to claim 1 is characterized in that described feeding system is made of agitator, densimeter, flowmeter, valve, feed pipe.
3, sorting technology for coarse coal slurry damping pulsation interference bed according to claim 1 is characterized in that described cleaned coal recovery system is made of desliming screen, Ash analyser, controller.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810049397A CN101543802A (en) | 2008-03-24 | 2008-03-24 | Sorting technology for coarse coal slurry damping pulsation interference bed |
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| CN200810049397A CN101543802A (en) | 2008-03-24 | 2008-03-24 | Sorting technology for coarse coal slurry damping pulsation interference bed |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101804382A (en) * | 2010-03-03 | 2010-08-18 | 中国矿业大学 | Sorting and grading device of pulsating liquid-solid fluidized bed and method thereof |
| CN101844104A (en) * | 2010-04-15 | 2010-09-29 | 河南理工大学 | Hydraulic classifier |
| CN103433118A (en) * | 2013-09-11 | 2013-12-11 | 煤炭工业郑州设计研究院股份有限公司 | Hydraulic classifier |
| CN104907158A (en) * | 2015-06-23 | 2015-09-16 | 天津美腾科技有限公司 | TCS intelligent coarse slime sorting machine |
| WO2016019411A1 (en) * | 2014-08-06 | 2016-02-11 | Newcastle Innovation Limited | An apparatus and method for removing an underflow stream |
| CN105597914A (en) * | 2016-03-17 | 2016-05-25 | 威海市海王旋流器有限公司 | Dense medium jamming bed coarse slime separation system |
| CN105813724A (en) * | 2013-11-14 | 2016-07-27 | Fl史密斯公司 | Classifier |
| CN106391292A (en) * | 2016-10-31 | 2017-02-15 | 中国矿业大学 | Liquid-solid fluidized bed sorting machine and material sorting method employing same |
| CN106680160A (en) * | 2017-02-28 | 2017-05-17 | 广西大学 | Continuous hydraulic analyzer adopting flow rising method and analysis method thereof |
| CN109078747A (en) * | 2018-06-26 | 2018-12-25 | 山西天地王坡煤业有限公司 | The method and device of coarse-fine coal classification production |
| CN113058753A (en) * | 2021-03-30 | 2021-07-02 | 中国矿业大学 | Underground coal liquid-solid fluidization sorting device |
| CN113751181A (en) * | 2021-09-15 | 2021-12-07 | 武汉润豫科技有限公司 | Discharging method for improving discharging efficiency of filling type jigging column |
-
2008
- 2008-03-24 CN CN200810049397A patent/CN101543802A/en active Pending
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101804382B (en) * | 2010-03-03 | 2013-01-02 | 中国矿业大学 | Sorting and grading device of pulsating liquid-solid fluidized bed and method thereof |
| CN101804382A (en) * | 2010-03-03 | 2010-08-18 | 中国矿业大学 | Sorting and grading device of pulsating liquid-solid fluidized bed and method thereof |
| CN101844104A (en) * | 2010-04-15 | 2010-09-29 | 河南理工大学 | Hydraulic classifier |
| CN103433118A (en) * | 2013-09-11 | 2013-12-11 | 煤炭工业郑州设计研究院股份有限公司 | Hydraulic classifier |
| CN105813724A (en) * | 2013-11-14 | 2016-07-27 | Fl史密斯公司 | Classifier |
| CN105813724B (en) * | 2013-11-14 | 2017-12-05 | Fl史密斯公司 | Separator |
| CN106573249A (en) * | 2014-08-06 | 2017-04-19 | 纽卡斯尔创新有限公司 | An apparatus and method for removing an underflow stream |
| WO2016019411A1 (en) * | 2014-08-06 | 2016-02-11 | Newcastle Innovation Limited | An apparatus and method for removing an underflow stream |
| US10300495B2 (en) | 2014-08-06 | 2019-05-28 | Newcastle Innovation Limited | Apparatus and method for removing an underflow stream |
| CN104907158A (en) * | 2015-06-23 | 2015-09-16 | 天津美腾科技有限公司 | TCS intelligent coarse slime sorting machine |
| CN105597914B (en) * | 2016-03-17 | 2017-11-07 | 威海市海王旋流器有限公司 | A kind of dense media disturbs bed separation of coarse slime system |
| CN105597914A (en) * | 2016-03-17 | 2016-05-25 | 威海市海王旋流器有限公司 | Dense medium jamming bed coarse slime separation system |
| CN106391292A (en) * | 2016-10-31 | 2017-02-15 | 中国矿业大学 | Liquid-solid fluidized bed sorting machine and material sorting method employing same |
| CN106680160A (en) * | 2017-02-28 | 2017-05-17 | 广西大学 | Continuous hydraulic analyzer adopting flow rising method and analysis method thereof |
| CN106680160B (en) * | 2017-02-28 | 2023-10-20 | 广西大学 | Continuous hydraulic analyzer adopting updraft method and analysis method thereof |
| CN109078747A (en) * | 2018-06-26 | 2018-12-25 | 山西天地王坡煤业有限公司 | The method and device of coarse-fine coal classification production |
| CN113058753A (en) * | 2021-03-30 | 2021-07-02 | 中国矿业大学 | Underground coal liquid-solid fluidization sorting device |
| CN113751181A (en) * | 2021-09-15 | 2021-12-07 | 武汉润豫科技有限公司 | Discharging method for improving discharging efficiency of filling type jigging column |
| CN113751181B (en) * | 2021-09-15 | 2023-09-26 | 武汉润豫科技有限公司 | Discharging method for improving discharging efficiency of filling jigging column |
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Application publication date: 20090930 |