CN101804382B - Sorting and grading device of pulsating liquid-solid fluidized bed and method thereof - Google Patents
Sorting and grading device of pulsating liquid-solid fluidized bed and method thereof Download PDFInfo
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- CN101804382B CN101804382B CN 201010116635 CN201010116635A CN101804382B CN 101804382 B CN101804382 B CN 101804382B CN 201010116635 CN201010116635 CN 201010116635 CN 201010116635 A CN201010116635 A CN 201010116635A CN 101804382 B CN101804382 B CN 101804382B
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Abstract
The invention provides a sorting and grading device of a pulsating liquid-solid fluidized bed and a method thereof. The sorting and grading device comprises a light product overflow trough, a central feed pipe, a sorting tank, a pulsating liquid distributor, a pulsating current generator, a heavy product collecting base-cone section, a sensor for measuring the concentration of the heavy product layer, a programmable controller, a heavy product discharging fluidized chamber and an underflow discharging automatic control actuator. The method comprises the following steps: firstly, water is thrown into a sorting machine in a pulsating way by the pulsating current generator, to form an upward varying-accelerated pulsating-type ascending current; accordingly, low-density or fine-fraction materials can be subjected to upward accelerated movement under the action of the accelerated pulsating-type ascending current, thus achieving the overflow discharge of the low-density or fine-fraction materials as the light or fine-fraction products; and high-density or coarse-fraction materials can be settled downwards in the fluidized bed, thus achieving the discharge of the high-density or coarse-fraction materials as the heavy or coarse-fraction products. Accordingly, the process for sorting materials by density on the basis of pulsating fluidization or the process for grading materials by fraction on the basis of pulsating fluidization can be achieved. The device and method of the invention have the advantages of simple operation, low energy consumption, low sorting lower limit, wide fraction range, high sorting accuracy and high reliability.
Description
Technical field
The present invention relates to a kind of pulsation liquid-solid fluid bed separation classification device and method, be particularly useful for sorting and the classification of the solid waste such as coal slime, slag from gasifying furnace and other Fine fraction of ore things.
Background technology
In fine fraction mineral sorting classifying field, mainly contain equipment and the methods such as cyclone, spiral, shaking table, hindered bed separator (being TBS), cyclone comes with some shortcomings but minor diameter heavily is situated between: too thin to the medium granularity requirements, medium preparation and recovery difficulty, and cost is high, require pressure high to pan feeding, equipment attrition is serious, and power consumption is large.The deficiency of spiral: separating density is high, and cleans ash is higher, and the separate unit treating capacity is little, highly large, and is strict to the pan feeding concentration requirement, is difficult to control on the industrial production.Tradition requires the particle size range of pan feeding narrower when disturbing the bed sorting technology to be used for separation of coarse slime, 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, although can strengthen by the method that improves ascending current speed the recovery of the rough grain of low-density, but high ascending current speed can cause again the high density fine grained to enter into overflow launder, cause the efficiency of separation to reduce, the underflow discharge mouth especially easily stops up simultaneously.
Summary of the invention
Technical problem: the purpose of this invention is to provide a kind of method and structure simple, energy consumption is low, and disposal ability is large, and sharpness of separation is high, pulsation liquid-solid fluid bed separation classification device and the method for the fine particle stage material sorting classifying that reliability is high.
Technical scheme: pulsation liquid-solid fluid bed separation classification device of the present invention, comprise the sorting staving with heavy collection of products base cone section, be located at light product overflow launder, fluctuating flow distributor, sensor on the sorting staving, the programmable controller that is connected with the sensor order and underflow discharge automatic control actuator, described sorting staving upper end is provided with the center feed pipe, and the porch of fluctuating flow distributor is connected with the fluctuating flow generator; Described heavy collection of products base cone section exit is provided with heavy product and discharges fluidising chamber, indoor water distributing plate and the feed pipe that is provided with hole of heavy product discharging fluidisation, the top of water distributing plate is provided with the heavy product delivery pipe of the heavy product of extraction, and the underflow discharge automatic control actuator is located on the heavy product delivery pipe.Described fluctuating flow distributor comprises supervisor, and with many arms being responsible for the sorting staving that is connected and passes, many arms in the sorting staving that penetrates are provided with the standpipe that a plurality of apertures make progress, and the top of each standpipe is equipped with permeable web plate; Described fluctuating flow generator is membrane pump, peristaltic pump or rotary valve.
Pulsation liquid-solid fluid bed separation stage division of the present invention, concrete steps are as follows:
A, at first by the fluctuating flow generator mode of water with pulsation is driven in the sorting staving by waterflow distributor, forms change upwards and accelerate the pulsation ascending current;
B, then will be sorted or the material of classification feeds in the sorting staving by the center feed pipe, be sorted or the material of classification accelerates under the fluidized-bed layer effect that the pulsation ascending current forms becoming, case of low density loads or fine particle stage material are subject to pulsing and accelerate additional thrust and dynamic pressure effect that ascending current produces and surpass gravity, the acting in conjunction of the mechanical resistance of collision friction between the additional inertia resistance of medium and particle, be upward through bed, brought into light product overflow launder by ascending current, discharge through light product outlet, and the suffered Action of Gravity Field of high density material or coarse fraction material surpasses the additional thrust that the ascending current generation is accelerated in pulsation, resistance of medium, the mechanical resistance effect of collision friction between the additional inertia resistance of medium and particle, still sedimentation is downwards passed the fluctuating flow distributor and is entered heavy collection of products base cone section;
C. be arranged on the heavy production concentration of sensor measurement of sorting staving bottom, and will pass to programmable controller after the signal conversion, after processing concentration signal, programmable controller passes to the underflow discharge automatic control actuator, to weigh product by the control of underflow discharge automatic control actuator and discharge from heavy product delivery pipe, realize pressing density are fluidization sorting or pressing grade pulsation fluidized classifying material;
D. to weighing the indoor current that pass into of product discharging fluidisation, by the water distributing plate with hole, make the concentrated heavy product of sedimentation form fluidized state on the current direction, prevent the obstruction of coarse fraction product deposition, be beneficial to the automatic-discharging of heavy product delivery pipe.
Beneficial effect: the present invention accelerates the pulsation ascending current by introducing to become, when being sorted or dividing a stage material to enter in the separator through the center feed pipe, run into when becoming the fluidized-bed layer that accelerates the formation of pulsation ascending current, case of low density loads or fine particle stage material are subject to pulsing and accelerate additional thrust and dynamic pressure effect that ascending current produces and surpass gravity, the acting in conjunction of the mechanical resistance of collision friction between the additional inertia resistance of medium and particle, accelerate the rising stage at fluctuating flow, accelerated motion upwards will be obtained, under a plurality of pulsation period effects, be upward through bed, brought into overflow by ascending current, discharge as light product or fine fraction product, and the suffered Action of Gravity Field of high density material or coarse fraction material surpasses the additional thrust that the ascending current generation is accelerated in pulsation, resistance of medium, the mechanical resistance effect of collision friction between the additional inertia resistance of medium and particle, still sedimentation downwards, pass the fluctuating flow distributor and enter underflow, discharge as heavy product or coarse fraction product, realize pressing density are fluidization sorting or pressing grade pulsation fluidized classifying material.The suction effect of sewing that become to accelerate dispersion, eduction and the deceleration period of pulsation ascending current has been strengthened fine particle stage material by density separation or by the effect of grade-classification.By being set, heavy product discharges fluidising chamber, to the indoor current that pass into of heavy product discharging fluidisation, by the water distributing plate with hole, make the concentrated heavy product of sedimentation form fluidized state on the current direction, prevent the obstruction of coarse fraction product deposition, be beneficial to the automatic-discharging of heavy product delivery pipe.Be applicable to sorting and the classification of the solid waste such as coal slime, slag from gasifying furnace and other Fine fraction of ore things.In whole sorting classifying process, can by regulating flow or ripple frequency or the amplitude of pulsing gluid, regulate neatly partition density and control product quality and productive rate.It is simple in structure, and production technology is simple, and lower limit of separation is low, processes particle size range wide, and disposal ability is large, and sharpness of separation is high, and reliability is high, has widely practicality.
Description of drawings
Fig. 1 is the pulse structural representation of liquid-solid fluid bed separation classification device of the present invention;
Fig. 2 is a kind of structural representation of fluctuating flow distributor of the present invention;
Fig. 3 is the another kind of structural representation of fluctuating flow distributor of the present invention;
Fig. 4 is fluctuating flow distributor partial structurtes schematic diagram of the present invention.
Among the figure: the light product overflow launder of 1-, 2-center feed pipe, 3-sorting staving, 4-fluctuating flow distributor, the heavy collection of products base cone of 5-section, 6-sensor, the 7-programmable controller, 8-underflow discharge automatic control actuator, the heavy product delivery pipe of 9-, the heavy product discharging of 10-fluidising chamber, 11-water distributing plate, 12-feed pipe, the light product outlet of 13-, 14-fluctuating flow generator, 4-1, fluctuating flow distributor supervisor, 4-2, fluctuating flow distributor branch pipes, 4-3, permeable web plate.
The specific embodiment
Below in conjunction with accompanying drawing one embodiment of the present of invention are further described:
As shown in Figure 1, pulsation liquid-solid fluid bed separation classification device of the present invention mainly is made of center feed pipe 2, sorting staving 3, fluctuating flow distributor 4, fluctuating flow generator 14, light product overflow launder 1, heavy collection of products base cone section 5, heavy product delivery pipe 9, heavy product discharging fluidising chamber 10, sensor 6, programmable controller 7 and underflow discharge automatic control actuator 8.The cross section of sorting staving 3 and heavy collection of products base cone section 5 is circle or rectangle, heavy collection of products base cone section 5 is located at the lower end of sorting staving 3, light product overflow launder 1 is located at sorting staving 3 straight section tops, light product overflow launder 1 has the tilting bottom, be provided with light product outlet 13 at the tilting bottom lowest part, center feed pipe 2 is located at the straight section upper end of sorting staving 3, and fluctuating flow distributor 4 is located at the straight section bottom of sorting staving 3.Fluctuating flow distributor 4 comprises supervisor 4-1, is connected with supervisor 4-1 and many arm 4-2 of the sorting staving 3 that passes, and the sorting staving 3 many interior arm 4-2 that penetrate are provided with the standpipe that a plurality of apertures make progress, and the top of each standpipe is equipped with permeable web plate 4-3.The porch of fluctuating flow distributor 4 connects fluctuating flow generator 14, and fluctuating flow distributor 4 produces fluctuating flow under the effect of fluctuating flow generator 14, and fluctuating flow generator 14 adopts membrane pump, peristaltic pump or rotary valve.Heavy product delivery pipe 9 bottoms are provided with heavy product and discharge fluidising chamber 10, be connected with base cone section 5 lower ends by flange, heavy product discharges water distributing plate 11 and the feed pipe 12 that is provided with in the fluidising chamber 10 with hole, heavy product delivery pipe 9 is located at the top of water distributing plate 11, and underflow discharge automatic control actuator 8 is located on the heavy product delivery pipe 9.Sensor 6 is located at the straight section bottom of sorting staving 3, sensor 6 programmable controller 7 and the underflow discharge automatic control actuator 8 that be linked in sequence forms the underflow discharge automatic control systems, by the automatic-discharging of the heavy product delivery pipe 9 of underflow discharge automatic controlling system.
Pulsation liquid-solid fluid bed separation stage division of the present invention: at first by fluctuating flow generator 14 mode of water with pulsation is driven in the sorting staving 3 by fluctuating flow distributor 4, form change upwards and accelerate the pulsation ascending current, be sorted or the material of classification feeds in the sorting staving 3 by center feed pipe 2, run into when becoming the fluidized-bed layer that accelerates the formation of pulsation ascending current, case of low density loads or fine particle stage material are subject to pulsing and accelerate additional thrust and dynamic pressure effect that ascending current produces and surpass gravity, the acting in conjunction of the mechanical resistance of collision friction between the additional inertia resistance of medium and particle, accelerate the rising stage at fluctuating flow, accelerated motion upwards will be obtained, under a plurality of pulsation period effects, be upward through bed, brought into overflow by ascending current, collected by the light product overflow launder 1 with tilting bottom as light product or fine fraction product, discharge through light product outlet 13, and the suffered Action of Gravity Field of high density material or coarse fraction material surpasses the additional thrust that the ascending current generation is accelerated in pulsation, resistance of medium, the mechanical resistance effect of collision friction between the additional inertia resistance of medium and particle, still sedimentation downwards, passing fluctuating flow distributor 4 enters heavy collection of products base cone section 5 and is condensed into attach most importance to product or coarse fraction product, discharge via heavy product delivery pipe 9 and underflow discharge automatic control actuator 8, thereby realize pressing density are fluidization sorting or pressing grade pulsation fluidized classifying material.Measure heavy production concentration and will pass to programmable controller 7 after the signal conversion by the sensor 6 that is arranged on sorting staving 3 bottoms, remove to control underflow discharge automatic control actuator 8 through 7 pairs of concentration signals processing of programmable controller, realize the automatic-discharging of counterweight product.By forming a kind of fluidized state with the water of the water distributing plate 11 of hole and concentrated heavy product in the heavy product discharging fluidising chamber 10, prevent the obstruction of heavy product deposition, be beneficial to automatic-discharging.
Claims (4)
- One kind the pulsation liquid-solid fluid bed separation classification device, comprise the sorting staving (3) with heavy collection of products base cone section (5), be located at the light product overflow launder (1) on the sorting staving (3), fluctuating flow distributor (4), sensor (6), the programmable controller (7) that is connected with the sensor order and underflow discharge automatic control actuator (8), it is characterized in that: described sorting staving (3) upper end is provided with center feed pipe (2), and the porch of fluctuating flow distributor (4) is connected with fluctuating flow generator (14); Described heavy collection of products base cone section (5) exit is provided with heavy product and discharges fluidising chamber (10), be provided with water distributing plate (11) and feed pipe (12) with hole in the heavy product discharging fluidising chamber (10), the top of water distributing plate (11) is provided with the heavy product delivery pipe (9) of the heavy product of extraction, and underflow discharge automatic control actuator (8) is located on the heavy product delivery pipe (9).
- 2. pulsation liquid-solid fluid bed separation classification device according to claim 1, it is characterized in that: described fluctuating flow distributor (4) comprises supervisor (4-1), be connected with supervisor (4-1) and the many arms (4-2) of the sorting staving (3) that passes, many arms (4-2) in the sorting staving (3) that penetrates are provided with the standpipe that a plurality of apertures make progress, and the top of each standpipe is equipped with permeable web plate (4-3).
- 3. pulsation liquid-solid fluid bed separation classification device according to claim 1, it is characterized in that: described fluctuating flow generator (14) is membrane pump, peristaltic pump or rotary valve.
- 4. pulsation liquid-solid fluid bed separation stage division, it is characterized in that: concrete steps are as follows:A, at first by fluctuating flow generator (14) mode of water with pulsation is driven in the sorting staving (3) by fluctuating flow distributor (4), forms change upwards and accelerate the ascending current of pulsing;B, then will be sorted or the material of classification feeds in the sorting staving (3) by center feed pipe (2), be sorted or the material of classification accelerates under the fluidized-bed layer effect that the pulsation ascending current forms becoming, case of low density loads or fine particle stage material are subject to pulsing and accelerate additional thrust and dynamic pressure effect that ascending current produces and surpass gravity, the acting in conjunction of the mechanical resistance of collision friction between the additional inertia resistance of medium and particle, be upward through bed, brought into light product overflow launder (1) by ascending current, discharge through light product outlet (13), and the suffered Action of Gravity Field of high density material or coarse fraction material surpasses the additional thrust that the ascending current generation is accelerated in pulsation, resistance of medium, the mechanical resistance effect of collision friction between the additional inertia resistance of medium and particle, still sedimentation is downwards passed fluctuating flow distributor (4) and is entered heavy collection of products base cone section (5);C. the sensor (6) that is arranged on sorting staving (3) bottom is measured heavy production concentration, and will pass to programmable controller (7) after the signal conversion, after processing concentration signal, programmable controller (7) passes to underflow discharge automatic control actuator (8), to weigh product by underflow discharge automatic control actuator (8) control and discharge from heavy product delivery pipe (9), realize pressing density are fluidization sorting or pressing grade pulsation fluidized classifying material;D. in heavy product discharging fluidising chamber (10), pass into current, on the current direction by the water distributing plate (11) with hole, make the concentrated heavy product of sedimentation form fluidized state, prevent the obstruction of coarse fraction product deposition, be beneficial to heavy product by the automatic-discharging of heavy product delivery pipe (9).
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| CN 201010116635 CN101804382B (en) | 2010-03-03 | 2010-03-03 | Sorting and grading device of pulsating liquid-solid fluidized bed and method thereof |
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| CN102205263B (en) * | 2011-05-24 | 2013-04-24 | 中国矿业大学 | Coal slime classified concentration device |
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| CN114713379B (en) * | 2021-07-22 | 2023-09-29 | 中国矿业大学 | Fluidized flotation device and method suitable for coarse particle recovery |
| CN114700181B (en) * | 2021-07-22 | 2023-07-14 | 中国矿业大学 | Flotation device and method suitable for coarse slime separation |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3639044C1 (en) * | 1985-05-18 | 1988-06-01 | Schauenburg Masch | Use of a fluidised bed slurry sorter as a sorting apparatus in the processing of flotation tailings |
| CN201158666Y (en) * | 2008-03-11 | 2008-12-03 | 上海宝钢工程技术有限公司 | Multifunctional regulation blowing tank |
| CN201172003Y (en) * | 2008-03-24 | 2008-12-31 | 河南理工大学 | Coarse coal slurry damp pulsation interference bed sorter |
| CN101543802A (en) * | 2008-03-24 | 2009-09-30 | 河南理工大学 | Sorting technology for coarse coal slurry damping pulsation interference bed |
| CN201644206U (en) * | 2010-03-03 | 2010-11-24 | 中国矿业大学 | Pulsating liquid-solid fluidized bed sorting classification device |
| CN101628256B (en) * | 2009-07-31 | 2012-06-27 | 河南理工大学 | Hindered bed separator |
-
2010
- 2010-03-03 CN CN 201010116635 patent/CN101804382B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3639044C1 (en) * | 1985-05-18 | 1988-06-01 | Schauenburg Masch | Use of a fluidised bed slurry sorter as a sorting apparatus in the processing of flotation tailings |
| CN201158666Y (en) * | 2008-03-11 | 2008-12-03 | 上海宝钢工程技术有限公司 | Multifunctional regulation blowing tank |
| CN201172003Y (en) * | 2008-03-24 | 2008-12-31 | 河南理工大学 | Coarse coal slurry damp pulsation interference bed sorter |
| CN101543802A (en) * | 2008-03-24 | 2009-09-30 | 河南理工大学 | Sorting technology for coarse coal slurry damping pulsation interference bed |
| CN101628256B (en) * | 2009-07-31 | 2012-06-27 | 河南理工大学 | Hindered bed separator |
| CN201644206U (en) * | 2010-03-03 | 2010-11-24 | 中国矿业大学 | Pulsating liquid-solid fluidized bed sorting classification device |
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