CN105689154A - Slime water flotation device and technology - Google Patents
Slime water flotation device and technology Download PDFInfo
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- CN105689154A CN105689154A CN201610211612.4A CN201610211612A CN105689154A CN 105689154 A CN105689154 A CN 105689154A CN 201610211612 A CN201610211612 A CN 201610211612A CN 105689154 A CN105689154 A CN 105689154A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/14—Flotation machines
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Abstract
The invention discloses a slime water flotation device and technology. The slime water flotation device comprises a chemical pre-vaporization device, a chemical and air mixing device, a slime water pre-classifying device and flotation equipment. A vaporization chemical of the chemical pre-vaporization device is output to the chemical and air mixing device, the output end of the chemical and air mixing device communicates with the slime water pre-classifying device, and after being subjected to classifying flotation, the vaporization chemical flows into the flotation equipment. The flotation technology comprises the steps that firstly, the chemical is subjected to pre-vaporization and mixing, wherein a collecting agent and a foaming agent in a flotation chemical are subjected to pre-vaporization, and then the vaporization chemical and air are sufficiently mixed to form mixed gas; and secondly, slime water is subjected to pre-classifying and flotation, wherein the mixed gas is led into the slime water pre-classifying device to be subjected to classifying flotation. The slime water flotation device is simple in structure and stable in running, the contact area of the chemical and slime water is sufficiently increased, the slime water pretreatment effect is effectively improved, and the slime water classifying effect can be improved.
Description
Technical field
The invention belongs to black water flotation technology field, be specifically related to a kind of black water flotation unit and technique。
Background technology
Black water is coal produced medium with water in the sorting course of processing; black water is one of primary pollution source of coal industry; the main task of slurry circulating system is reclaim the fine particle product of different qualities and the cycling use of water of applicable coal preparation plant from the black water of substantial amounts with purpose; realize closed water circuit; the requirement of environmental conservation can be met during discharge, coal preparation plant's economy and social benefit will be drastically influence。Therefore, slime water treatment is a very important link in coal preparation plant's production technology。
In current floatation process, the foaming agents adopting the collecting agent improving coal grain surface hydrophobic and reduction gas-liquid interface tension force carry out medicament interpolation more；Chinese patent literature CN103736599A discloses a kind of emulsifier unit, this device includes a mixing pump, one water source, one water inlet actuator, one Air-Inlet Controller and with emulsator, this emulsator comprises a housing, the dividing plate that its inner space is had slot by one is divided into a cup and a rear chamber, gas-water mixture through slot because cavitation forms emulsified state, because emulsification makes medicament high degree of dispersion, form vaporific aerosol, increase the stability of floating agent emulsion, it is made to be formed without larger oil droplet, thus improving the contact area of medicament and ore pulp, increase the flotability of mineral, improve flotation productivity, this device is applied in flotation and will be greatly improved the effect of ore pulp pretreatment, but this device easily blocks slit, affect emulsifying effectiveness, and this device needs regulable control air to form the saturated gas-liquid of high pressure with water, stable operating effect can not be reached。And, in prior art, black water carries out flotation first have to carry out classification, classification is to be easily separated by granule size by solid particle, conventional classifying equipoment is hydrocyclone, the classification efficiency of hydrocyclone rises with the increase of grain graininess, for the solid phase particles in charging being divided into coarse fraction granule and fine fraction granule, owing to the treating capacity of cyclone reduces with the reduction of diameter, in actual production, the mode adopting the installation of multiple cyclone parallel connection reaches production requirement, but so certainly will add the consuming time of flotation, increase equipment energy consumption, reduce flotation efficiency。
Therefore, those skilled in the art need a kind of simple in construction of offer, raising medicament stable, abundant and black water contact area badly, are effectively improved black water pretreating effect and can improve black water flotation unit and the technique of coal slime water classified effect。
Summary of the invention
For above-mentioned deficiency, the invention provides a kind of simple in construction, raising medicament stable, abundant and black water contact area, be effectively improved black water pretreating effect and black water flotation unit and the technique of coal slime water classified effect can be improved。
A kind of black water flotation unit is provided one of for achieving the above object, present invention employs techniques below scheme:
A kind of black water flotation unit, including medicament vapourizing unit in advance, medicament air mixing device, black water pre-classification device and floatation equipment；
Described medicament vapourizing unit in advance includes medicament barrel, and described medicament barrel is sequentially communicated to vaporizer vessel by electrically-controlled valve I, high-pressure pump, electrically-controlled valve II, nozzle；Described vaporizer vessel is connected to electrothermal tube in container upper end, is provided with the electrically-controlled valve III for collecting vaporization medicament on electrothermal tube, and vaporizer vessel is provided with device for detecting temperature, pressure monitoring device that internal tank temperature, pressure are monitored；Described vaporizer vessel is also associated with leading to the vacuum-pumping pipeline of medicament barrel；
Described medicament air mixing device includes interconnecting to form the drug-feeding tube and air inlet pipe confluxed, and electrothermal tube outfan is communicated to drug-feeding tube；The section of the confluxing outfan of drug-feeding tube and air inlet pipe is communicated to described black water pre-classification device, flows into floatation equipment after carrying out stage flotation。
Preferably, described vaporizer vessel includes the multiple electric hot plates being arranged on internal tank, and the fixing end of these multiple electric hot plates is arranged on the wall of container, and the inclined shape of projecting end of electric hot plate is arranged downwards；The projecting end layout interlaced with each other of multiple electric hot plates also constitutes medicament flow channel；And the heating-up temperature of described electric hot plate is set to be gradually increased from top to bottom；Described vacuum-pumping pipeline include with vaporizer vessel bottom be sequentially communicated electrically-controlled valve IV, vacuum pump, described vacuum pump by pipeline lead to medicament barrel, described medicament barrel is provided with level monitoring device；Described electrothermal tube is additionally provided with flow monitoring device in the exit of electrically-controlled valve III；
This device is additionally provided with control system, and described control system electrically connects with device for detecting temperature, pressure monitoring device, level monitoring device, electrically-controlled valve I, electrically-controlled valve II, electrically-controlled valve III, electrically-controlled valve IV, electrothermal tube, high-pressure pump, vacuum pump, electric hot plate。
Preferably, the section of confluxing of drug-feeding tube and air inlet pipe is provided with many dividing plates, and the inclined shape of projecting end of dividing plate is arranged downwards；The projecting end layout interlaced with each other of many dividing plates also constitutes the mixed flow passage of vaporization medicament and air。
Preferably, described black water pre-classification device includes multiple cylinders of series connection, and first order cylinder upper end edge tangential direction is provided with feeding pipe, is connected by the connecting tube on top between multiple cylinders, and final stage cylinder top is tangentially provided with discharge pipe；Arbitrary cylinder lower end is equipped with bubble generator, bottom on the downside of bubble generator is respectively connected with underflow pipe and blow-off valve；The outfan forming drug-feeding tube and the air inlet pipe confluxed is communicated to bubble generator。
Further, between described cylinder the head end of connecting tube, tail end respectively along the outflow direction of black water, inflow direction arrange；
The diameter of described cylinder is reduced backward step by step by the first order, is provided with some concentric hollow cylinder dividing plates in described cylinder；Accordingly, the quantity of described hollow cylinder dividing plate is reduced backward step by step by the first order。
Further, described black water pre-classification device includes multiple unit cells that be arranged concentrically, ring-type, and the inner side pool wall of each unit cells all constitutes the outside pool wall in adjacent cells pond；The inside being positioned at the unit cells of inner side is provided with the pond of confluxing of tubular；
Each described unit cells is provided with the deflector of ring-type, the unit cells at deflector and its place is arranged concentrically, and unit cells is divided into inflow zone and go out to flow region by deflector, described inflow zone goes out to flow region and be connected by the vacancy portion of deflector bottom with described；
From outermost unit cells and first order unit cells to pond of confluxing, pond heights of roofs reduces successively；
The upper end of outermost unit cells is provided with feed chute, the bottom of each described unit cells and the bottom in pond of confluxing are equipped with drainage conduit, and the outfan be equipped with above-mentioned bubble generator bottom any cell pond, forming drug-feeding tube and the air inlet pipe confluxed is communicated to bubble generator；What the drainage conduit of any one unit cells was arranged at this element pond goes out to flow side, region, and the pool wall outside it of absolute altitude at the bottom of the pond of each described unit cells is all gradually lowered to drainage conduit side；The drainage conduit in pond of confluxing is arranged on confluxes in the middle part of at the bottom of pond, from its pool wall place to confluxing in the middle part of at the bottom of pond to tilt gradually at the bottom of the pond in pond of confluxing。
Further, from outermost unit cells to pond of confluxing, the spacing between deflector and the inner side pool wall in this element pond in unit cells is gradually increased；From outermost unit cells to pond of confluxing, the volume of cell body is sequentially reduced；
Going out in each described unit cells flows and is provided with rectification tube bank in region。
Further, it is netted intertexture and the hollow pipe interconnected that described bubble generator is set to many, is uniformly laid with pore on hollow pipe to face。
The two of the purpose of the present invention are to provide the black water floatation process of a kind of above-mentioned black water flotation unit, including following operation:
S1, medicament are vaporized mixing in advance: the collecting agent in floating agent and foaming agent are vaporized in advance respectively through medicament vapourizing unit in advance, then pass through medicament air mixing device and are thoroughly mixed to form with air by vaporization medicament and mix gas；
S2, black water pre-classification flotation: passed into by mixing gas in black water pre-classification device and carry out stage flotation, for the black water of 0.5～0.25mm and 0.25～0.125mm grade, when ash is lower than 10.50%, directly as product；When ash is higher than 10.50%, floatation equipment must be entered；The black water of 0.125～0.045mm grade is passed directly into floatation equipment；It is directly entered concentrator less than the black water of 0.045mm grade。
Preferably, the mixing of vaporizing in advance of S1 Chinese medicine comprises the steps:
S10, closing electrically-controlled valve II, electrically-controlled valve III by control system, open electrically-controlled valve IV, vacuum pump, now will be evacuated in vaporizer vessel, electric hot plate and electrothermal tube all begin to warm up and are in heated condition all the time；
S11, device for detecting temperature and pressure monitoring device are in running order all the time, when pressure monitoring device monitor force value reach medicament the best pressure for vaporization time, close vacuum pump, close electrically-controlled valve IV, open electrically-controlled valve I and electrically-controlled valve II, opening high-pressure pump, medicament is sprayed into vaporization under negative pressure high temperature action in vaporizer vessel by high-pressure pump through nozzle at high speeds；Part medicament still in liquid and be gathered on electric hot plate, will flow along electric hot plate, and electric hot plate is in high temperature makes medicament continue vaporization；When temperature and pressure rises to marginal value, closing high-pressure pump, close electrically-controlled valve I and electrically-controlled valve II, open electrically-controlled valve III, collecting agent and foaming agent after vaporizing respectively will flow out along electrothermal tube, simultaneously enter in medicament air mixing device, mix with air；
S12, be not fully complete the medicament of vaporization and be gathered in the bottom of vaporizer vessel, until flow monitoring device monitor flow go to zero time, close electrically-controlled valve III, open electrically-controlled valve IV and vacuum pump, the medicament of liquid will be drawn back into medicament barrel, and vaporizer vessel will be evacuated again；
The step of the above-mentioned S10～S12 of S13, repetitive cycling, until medicament adds complete according to quantity。
The beneficial effects of the present invention is:
1), the present invention first passes through the collecting agent in medicament vaporization device just floating agent and foaming agent is vaporized respectively in advance, then passes through medicament and vaporization medicament and air is sufficiently mixed with air mixing device, forms mixing gas；Then mixing gas is passed in black water pre-classification device and carry out stage flotation, for the black water of 0.5～0.25mm and 0.25～0.125mm grade, when ash is lower than 10.50%, directly as product；When ash is higher than 10.50%, floatation equipment must be entered；0.125～0.045mm grade be passed directly into floatation equipment；It is directly entered concentrator less than 0.045mm grade。
Wherein, the design of medicament vaporization apparatus structure is simple, medicament is fully vaporized the mixing be conducive to air, will be effectively improved medicament with black water contact area it is thus possible to significantly improve black water pretreating effect, it is possible to black water carries out grade-classification and strengthening desliming simultaneously；Mineral grain classification in black water is discharged by black water pre-classification device, and classification efficiency is high, is effectively improved flotation performance。
2), the projecting end layout interlaced with each other of multiple electric hot plates constitute medicament flow channel in medicament vaporization device of the present invention, increase the move distance of medicament, and electric plate temperature is gradually increased by order from top to bottom, make medicament have enough time fully to be vaporized, provide effective guarantee for present invention pretreating effect in black water。
3), medicament vaporization device of the present invention can be realized by control system the automatization of medicament vaporization process, concrete, when pressure monitoring device monitor container inner pressure value reach medicament the best pressure for vaporization time, begin to boil off process；Until flow monitoring device monitor flow go to zero time, the medicament of remaining liquid will be drawn back into medicament barrel；When level monitoring device monitor medicament less time, automatically add medicament；The setting of control system substantially increases the treatment effeciency of the present invention, saves manpower。
The medicament vaporization advantage maximum compared to emulsifying and other conventional liquid medicaments is in that: after medicament vaporization, the dispersibility of medicament is very good, and specific surface area significantly increases, and medicament contacts evenly more abundant with granule in ore pulp。One spotlight of the present invention is in that " being sprayed by nozzle by medicament, play the effect being atomized in advance, with being negative pressure state in timer, strengthen the atomizing of medicament, the medicament after atomization absorbs heat evenly, and vaporization efficency is greatly improved。"
4) drug-feeding tube and the outfan of air inlet pipe that, present invention formation is confluxed are communicated to described black water pre-classification device and carry out stage flotation, black water pre-classification device can be set to various ways, when being set to multiple cylinder of series connection, black water is fed with certain speed by cylinder upper end tangential direction, and the material that in the cylinder of series connection, afterbody cylinder top is discharged is the thin mud that ash is higher；The material that underflow is discharged is through certain the grade coal slime optimized, and has grading and desliming effect concurrently, and wherein desliming effect is strengthened, and causes that each grade product after classification is more excellent；Achieve under simple in construction, stable premise and black water is carried out grade-classification and strengthening desliming simultaneously。
5), when black water pre-classification device is set to coal slime water classified pond, black water uniformly flows into after outermost unit cells through feed chute, first gone out to flow region around flowing to it by the inflow zone of outermost unit cells, in outermost unit cells when going out to flow in region flowing, there is the hindered falling end speed of a part of mineral grain of maximum particle diameter more than going out to flow the upflow velocity in region, thus the mineral grain of this part maximum particle diameter is deposited to the bottom of outermost unit cells gradually, and discharge through drainage conduit。Same, every one-level unit cells all can remove the mineral grain of a part of specified particle diameter, and the black water after process is discharged through the drainage conduit of remittance bottom of the flow cell, thus completing whole classification process；Not only can obtain comparatively accurate grading, and there is simple in construction, easy to operate, production capacity is big, classification efficiency is high, floor space is little, without drive disk assembly be easily achieved the advantage automatically controlled, all can be used widely in many fields of national economy。
Accompanying drawing explanation
Fig. 1 is the structure schematic diagram of medicament of the present invention vapourizing unit in advance。
Fig. 2 is the structure schematic diagram of medicament air mixing device of the present invention。
Fig. 3,5 respectively different black water pre-classification devices of the present invention two kinds structure schematic diagram。
Fig. 4 is the top view of single cylinder in Fig. 3。
Fig. 6 is the left view of Fig. 5。
Fig. 7 is the structure schematic diagram of bubble generator in black water pre-classification device of the present invention。
Fig. 8 is the flow chart of floatation process of the present invention。
In figure, the implication of label symbol is as follows:
A-medicament vapourizing unit in advance
A10-medicament barrel A100-level monitoring device A11-electrically-controlled valve I A12-high-pressure pump
A13-electrically-controlled valve II A14-nozzle A20-vaporizer vessel A200-electric hot plate
A21-electrothermal tube A22-electrically-controlled valve III A23-device for detecting temperature A24-pressure monitoring device
A25-flow monitoring device A26-electrically-controlled valve IV A27-vacuum pump
B-medicament air mixing device B10-drug-feeding tube B11-air inlet pipe B12-dividing plate
C-black water pre-classification device C1-cylinder C2-feeding pipe C3-connecting tube
C4-bubble generator C40-hollow pipe C400-pore C5-underflow pipe
C6-blow-off valve C7-discharge pipe C8-hollow cylinder dividing plate
C10 feed chute C20 unit cells C21 deflector C22 rectification is restrained
Pool wall outside pool wall C26 inside C24 drainage conduit C25 at the bottom of C23 pond
C27 inflow zone C28 goes out to flow region C30 and confluxes pond
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the present invention is clearly and completely described。Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of protection of the invention。
Black water flotation unit
A kind of black water flotation unit, including medicament vapourizing unit A in advance, medicament air mixing device B, black water pre-classification device C and floatation equipment；
Medicament is vapourizing unit A in advance
It is sequentially communicated to vaporizer vessel A20 as it is shown in figure 1, described medicament vapourizing unit A in advance includes medicament barrel A10, described medicament barrel A10 by electrically-controlled valve I A11, high-pressure pump A12, electrically-controlled valve II A13, nozzle A14；Described vaporizer vessel A20 is connected to electrothermal tube A21 in container upper end, electrothermal tube A21 is provided with electrically-controlled valve III A22 for collecting vaporization medicament, and vaporizer vessel A20 is provided with device for detecting temperature A23, pressure monitoring device A24 that internal tank temperature, pressure are monitored；Described vaporizer vessel A20 is also associated with leading to the vacuum-pumping pipeline of medicament barrel A10。
Concrete, described vaporizer vessel A20 includes the multiple electric hot plate A200 being arranged on internal tank, and the fixing end of these multiple electric hot plate A200 is arranged on the wall of container, and the inclined shape of projecting end of electric hot plate A200 is arranged downwards；The projecting end layout interlaced with each other of multiple electric hot plate A200 also constitutes medicament flow channel；And the heating-up temperature of described electric hot plate A200 is set to be gradually increased from top to bottom。
Described vacuum-pumping pipeline include with vaporizer vessel A20 bottom electrically-controlled valve IV A26, the vacuum pump A27 that are sequentially communicated, described vacuum pump A27 leads to medicament barrel A10 by pipeline, and described medicament barrel A10 is provided with level monitoring device A100；Described electrothermal tube A21 is additionally provided with flow monitoring device A25 in the exit of electrically-controlled valve III A22；
This device is additionally provided with control system, and described control system electrically connects with device for detecting temperature A23, pressure monitoring device A24, level monitoring device A25, electrically-controlled valve I A11, electrically-controlled valve II A13, electrically-controlled valve III A22, electrically-controlled valve IV A26, electrothermal tube A21, high-pressure pump A12, vacuum pump A27, electric hot plate A200。
Medicament air mixing device B
As in figure 2 it is shown, described medicament air mixing device B includes interconnecting to form the drug-feeding tube B10 and air inlet pipe B11 confluxed, electrothermal tube A21 outfan is communicated to drug-feeding tube B10；The section of the confluxing outfan of drug-feeding tube B10 and air inlet pipe B11 is communicated to described black water pre-classification device C, flows into floatation equipment after carrying out stage flotation。
The section of confluxing of drug-feeding tube B10 and air inlet pipe B11 is provided with the inclined shape of projecting end of many dividing plate B12, dividing plate B12 and arranges downwards；The projecting end layout interlaced with each other of many dividing plate B12 also constitutes the mixed flow passage of vaporization medicament and air。
Black water pre-classification device C
As shown in Figure 3,4, for the first embodiment: described black water pre-classification device C includes multiple cylinder C1 of series connection, first order cylinder C1 upper end edge tangential direction is provided with feeding pipe C2, being connected by the connecting tube C3 on top between multiple cylinder C1, final stage cylinder top is tangentially provided with discharge pipe C7；Arbitrary cylinder C1 lower end is equipped with bubble generator C4, bottom on the downside of bubble generator C4 is respectively connected with underflow pipe C5 and blow-off valve C6；The outfan forming drug-feeding tube B10 and the air inlet pipe B11 confluxed is communicated to bubble generator C4。
Between described cylinder C1 the head end of connecting tube C3, tail end respectively along the outflow direction of black water, inflow direction arrange；As it is shown in fig. 7, it is netted intertexture and the hollow pipe C40 interconnected that described bubble generator C4 is set to many, hollow pipe C40 is uniformly laid with to face pore C400；
The diameter of described cylinder C1 is reduced backward step by step by the first order, is provided with some concentric hollow cylinder dividing plate C8 in described cylinder C1；Accordingly, the quantity of described hollow cylinder dividing plate C8 is reduced backward step by step by the first order, and pore C400 aperture adjusts (in the present embodiment, air vent aperture reduces backward step by step) from first order cylinder accordingly according to cylinder。
This embodiment makes black water be fed with certain speed by cylinder C1 upper end tangential direction, black water is made to form rotational flow field in cylinder C1, granule is moved downward by helically path, cylinder C1 top, and due to centrifugal action, the granule that equal settling factor is little will to central motion。Owing to pan feeding speed is more than underflow speed, necessarily can producing ascending current in cylinder C1, the dropping process of granule can be regarded as and is in " adverse current " motion: wherein, and the especially big granule of granularity moves downward in the shape of a spiral along barrel；The motion of all the other granules can be divided into two kinds, and a part of disturbance caused sedimentation velocity is more than ascending current speed, and this partial particulate, gradually to central motion, is settled down to downwards bottom cylinder C1 simultaneously, discharges cylinder by underflow pipe C5；Another part disturbance caused sedimentation velocity is less than ascending current speed, and this partial particulate, gradually to central motion, moves up to cylinder C1 top simultaneously, tangentially mounted connecting tube C3 flows into next cylinder。
The mixing gas prepared by medicament vapourizing unit A in advance and medicament air mixing device B is entered cylinder C1 by cylinder C1 lower end air Bubble generating apparatus C4, and form bubble population and float rapidly, owing to black water rotates the effect of centrifugal force formed, bubble is concentrated mainly near cylinder C1 longitudinal center line。And near longitudinal center line main distribution be " all the other granules " except the especially big granule of granularity, in " all the other granules ", hindered falling speed is less than granule still " to center, the upwards " motion of water velocity, and hindered falling speed more than the granule of water velocity while " to center, downwards " moves, to collide with bubble and adhere to, the thin mud granule of a part will stick to and float up to top on bubble, enter next cylinder。
Thus the material that in the present invention, in the cylinder C1 of all series connection, afterbody cylinder C1 top is discharged must be the thin mud that ash is higher, the material that underflow is discharged is certain the grade coal slime through optimizing, and black water has carried out grade-classification and strengthening desliming simultaneously。
(Fig. 5 only depicts left-half cell body as shown in Figure 5,6, right half part is symmetrical with it and is not drawn into), for the second embodiment: the inner side pool wall C25 that described black water pre-classification device C includes multiple unit cells C20 that be arranged concentrically, ring-type, each unit cells C20 all constitutes the outside pool wall C26 of adjacent cells pond C20；The inside being positioned at the unit cells C20 of inner side is provided with the pond C30 that confluxes of tubular；
Each described unit cells C20 is provided with the deflector C21 of ring-type, the unit cells C20 at deflector C21 and its place is arranged concentrically, and unit cells C20 is divided into inflow zone C27 and goes out to flow region C28, described inflow zone C27 and go out to flow region C28 and be connected by the vacancy portion of deflector C21 bottom with described by deflector C21；
From outermost unit cells C20 and first order unit cells to pond of confluxing, pond heights of roofs reduces successively；
The upper end of outermost unit cells C20 is provided with feed chute C10, the bottom of the bottom of each described unit cells C20 and the pond C30 that confluxes is equipped with drainage conduit C24, bubble generator C4 as above it is equipped with bottom the C20 of any cell pond, the outfan forming drug-feeding tube B10 and the air inlet pipe B11 confluxed is communicated to described bubble generator C4 (as shown in Figure 7, described bubble generator C4 is set to many in netted intertexture, and the hollow pipe C40 interconnected, hollow pipe C40 is uniformly laid with pore C400 to face, pore C400 aperture adjusts accordingly according to cell body size, in the present embodiment, air vent aperture increases backward step by step from first order cell body)。
What the drainage conduit C24 of any one unit cells C20 was arranged at this element pond C20 goes out to flow C28 side, region, and pool wall C26 to the drainage conduit C24 side outside it of C23 absolute altitude at the bottom of the pond of each described unit cells C20 is all gradually lowered；The drainage conduit C24 of pond C300 of confluxing is arranged on and confluxes in the middle part of at the bottom of pond, and the C23 at the bottom of the pond of pond C30 that confluxes tilts in the middle part of the C23 at the bottom of pond that confluxes gradually from its pool wall place；
From outermost unit cells C20 to the pond C30 that confluxes, the volume of cell body is sequentially reduced, the spacing between deflector C21 and the inner side pool wall C25 of this element pond C20 in unit cells C20 is gradually increased, this structure makes from outermost unit cells C20 to the pond C30 that confluxes, unit cells C20 goes out to flow the upflow velocity of black water in the C28 of region and is gradually lowered, when deflector C21 and its place unit cells 20 inner side pool wall C25 distance more hour, it is more big that this element pond C20 goes out to flow the speed that in the C28 of region, black water rises, thus partition size is more big, and then it is effectively realized accurate grading。
Going out to flow to be provided with in the C28 of region rectification tube bank C22 in each described unit cells C20, rectification tube bank C22 mono-aspect can control upwelling and becomes evenly, on the other hand can the assist control current rate of climb, improve classification efficiency further。
For this embodiment, when in the present invention, coal slime water classified pond processes black water, black water uniformly flows into after outermost unit cells C20 through feed chute C10, first gone out to flow region C28 by the inflow zone C27 of outermost unit cells C20 around flowing to it, in outermost unit cells when going out to flow in the C28 of region flowing, there is the hindered falling end speed of a part of mineral grain of maximum particle diameter more than the upflow velocity going out to flow region C28, therefore, the mineral grain of this part maximum particle diameter is deposited to the bottom of outermost unit cells C20 gradually, and discharges through drainage conduit C24。Same, every one-level unit cells all can remove the mineral grain of a part of specified particle diameter, and the black water after process is discharged through the drainage conduit of remittance bottom of the flow cell, thus completing whole classification process。
Black water floatation process
As shown in Figure 8, a kind of black water floatation process such as above-mentioned black water flotation unit includes following operation S1, medicament and vaporizes in advance mixing: the collecting agent in floating agent and foaming agent are vaporized in advance respectively through medicament vapourizing unit A in advance, then passes through medicament air mixing device B and is thoroughly mixed to form with air by vaporization medicament and mixes gas；S2, black water pre-classification flotation: mixing gas is passed in black water pre-classification device C and carry out stage flotation, black water for 0.5～0.25mm and 0.25～0.125mm grade, when ash is lower than 10.50% (mass percent), directly as product；When ash is higher than 10.50% (mass percent), floatation equipment must be entered；0.125～0.045mm grade be passed directly into floatation equipment；It is directly entered concentrator less than 0.045mm grade。
Concrete, the mixing of vaporizing in advance of S1 Chinese medicine comprises the steps:
S10, closing electrically-controlled valve II A13, electrically-controlled valve III A22 by control system, open electrically-controlled valve IV A26, vacuum pump A27, now will be evacuated in vaporizer vessel A20, electric hot plate A200 and electrothermal tube A21 all begins to warm up and is in heated condition all the time；
S11, device for detecting temperature A23 and pressure monitoring device A24 are in running order all the time, when pressure monitoring device A24 monitor force value reach medicament the best pressure for vaporization time, close vacuum pump A27, close electrically-controlled valve IV A26, open electrically-controlled valve I A11 and electrically-controlled valve II A13, opening high-pressure pump A12, medicament is sprayed at a high speed vaporization under negative pressure high temperature action in vaporizer vessel A20 by high-pressure pump A12 through nozzle A14；Part medicament still in liquid and be gathered on electric hot plate A200, will flow along electric hot plate A200, and electric hot plate A200 is in high temperature makes medicament continue vaporization；When temperature and pressure rises to marginal value, close high-pressure pump A12, close electrically-controlled valve I A11 and electrically-controlled valve II A13, open electrically-controlled valve III A22, collecting agent and foaming agent after vaporizing respectively will flow out along electrothermal tube A21, simultaneously enter in the drug-feeding tube B10 of medicament air mixing device B, mix with air；
S12, it is not fully complete the medicament of vaporization and is gathered in the bottom of vaporizer vessel A20, until flow monitoring device A25 monitor flow go to zero time, close electrically-controlled valve III A22, open electrically-controlled valve IV A26 and vacuum pump A27, the medicament of liquid will be drawn back into medicament barrel A10, and vaporizer vessel A20 will be evacuated again；
The step of the above-mentioned S10～S12 of S13, repetitive cycling, until medicament adds complete according to quantity。
Claims (10)
1. a black water flotation unit, it is characterised in that: include medicament vapourizing unit in advance (A), medicament air mixing device (B), black water pre-classification device (C) and floatation equipment；
Described medicament vapourizing unit in advance (A) includes medicament barrel (A10), and described medicament barrel (A10) is sequentially communicated to vaporizer vessel (A20) by electrically-controlled valve I (A11), high-pressure pump (A12), electrically-controlled valve II (A13), nozzle (A14)；Described vaporizer vessel (A20) is connected to electrothermal tube (A21) in container upper end, electrothermal tube (A21) is provided with the electrically-controlled valve III (A22) for collecting vaporization medicament, and vaporizer vessel (A20) is provided with device for detecting temperature (A23), pressure monitoring device (A24) that internal tank temperature, pressure are monitored；Described vaporizer vessel (A20) is also associated with leading to the vacuum-pumping pipeline of medicament barrel (A10)；
Described medicament air mixing device (B) includes interconnecting to form the drug-feeding tube (B10) and air inlet pipe (B11) confluxed, and electrothermal tube (A21) outfan is communicated to drug-feeding tube (B10)；The section of the confluxing outfan of drug-feeding tube (B10) and air inlet pipe (B11) is communicated to described black water pre-classification device (C), flows into floatation equipment after carrying out stage flotation。
2. a kind of black water flotation unit according to claim 1, it is characterized in that: described vaporizer vessel (A20) includes being arranged on multiple electric hot plates (A200) of internal tank, the fixing end of these multiple electric hot plates (A200) is arranged on the wall of container, and the inclined shape of projecting end of electric hot plate (A200) is arranged downwards；The projecting end layout interlaced with each other of multiple electric hot plates (A200) also constitutes medicament flow channel；And the heating-up temperature of described electric hot plate (A200) is set to be gradually increased from top to bottom；Described vacuum-pumping pipeline includes the electrically-controlled valve IV (A26), the vacuum pump (A27) that are sequentially communicated with vaporizer vessel (A20) bottom, described vacuum pump (A27) leads to medicament barrel (A10) by pipeline, and described medicament barrel (A10) is provided with level monitoring device (A100)；Described electrothermal tube (A21) is additionally provided with flow monitoring device (A25) in the exit of electrically-controlled valve III (A22)；
This device is additionally provided with control system, and described control system electrically connects with device for detecting temperature (A23), pressure monitoring device (A24), level monitoring device (A25), electrically-controlled valve I (A11), electrically-controlled valve II (A13), electrically-controlled valve III (A22), electrically-controlled valve IV (A26), electrothermal tube (A21), high-pressure pump (A12), vacuum pump (A27), electric hot plate (A200)。
3. a kind of black water flotation unit according to claim 1, it is characterized in that: the section of confluxing of described drug-feeding tube (B10) and air inlet pipe (B11) is provided with many dividing plates (B12), the inclined shape of projecting end of dividing plate (B12) is arranged downwards；The projecting end layout interlaced with each other of many dividing plates (B12) also constitutes the mixed flow passage of vaporization medicament and air。
4. a kind of black water flotation unit according to claim 1, it is characterized in that: described black water pre-classification device (C) includes multiple cylinders (C1) of series connection, first order cylinder (C1) upper end edge tangential direction is provided with feeding pipe (C2), being connected by the connecting tube (C3) on top between multiple cylinders (C1), final stage cylinder top is tangentially provided with discharge pipe (C7)；Arbitrary cylinder (C1) lower end is equipped with bubble generator (C4), is respectively connected with underflow pipe (C5) and blow-off valve (C6) in the bottom of bubble generator (C4) downside；The outfan forming drug-feeding tube (B10) and the air inlet pipe (B11) confluxed is communicated to bubble generator (C4)。
5. a kind of black water flotation unit according to claim 4, it is characterised in that: between described cylinder (C1) head end of connecting tube (C3), tail end respectively along the outflow direction of black water, inflow direction arranges；
The diameter of described cylinder (C1) is reduced backward step by step by the first order, is provided with some concentric hollow cylinder dividing plates (C8) in described cylinder (C1)；Accordingly, the quantity of described hollow cylinder dividing plate (C8) is reduced backward step by step by the first order。
6. a kind of black water flotation unit according to claim 1, it is characterized in that: described black water pre-classification device (C) includes multiple unit cells (C20) that be arranged concentrically, ring-type, and the inner side pool wall (C25) of each unit cells (C20) all constitutes the outside pool wall (C26) in adjacent cells pond (C20)；The inside being positioned at the unit cells (C20) of inner side is provided with the pond of confluxing (C30) of tubular；
Each described unit cells (C20) is provided with the deflector (C21) of ring-type, the unit cells (C20) at deflector (C21) and its place is arranged concentrically, and unit cells (C20) is divided into inflow zone (C27) and goes out to flow region (C28) by deflector (C21), described inflow zone (C27) goes out to flow region (C28) and be connected by the vacancy portion of deflector (C21) bottom with described；
From outermost unit cells (C20) i.e. first order unit cells to pond of confluxing, pond heights of roofs reduces successively；
The upper end of outermost unit cells (C20) is provided with feed chute (C10), the bottom in the bottom of each described unit cells (C20) and pond (C30) of confluxing is equipped with drainage conduit (C24), and any cell pond (C20) bottom is respectively provided with bubble generator (C4), formation is confluxed drug-feeding tube (B10) and the outfan of air inlet pipe (B11) are communicated to described bubble generator (C4)；What the drainage conduit (C24) of any one unit cells (C20) was arranged at this element pond (C20) goes out to flow region (C28) side, and the pool wall (C26) outside it of (C23) absolute altitude at the bottom of the pond of each described unit cells (C20) is all gradually lowered to drainage conduit (C24) side；The drainage conduit (C24) of pond (C300) of confluxing is arranged on confluxes in the middle part of at the bottom of pond, and (C23) at the bottom of the pond of pond of confluxing (C30) tilts to (C23) middle part at the bottom of pond of confluxing gradually from its pool wall place。
7. a kind of black water flotation unit according to claim 6, it is characterized in that: from outermost unit cells (C20) to pond of confluxing (C30), the spacing between deflector (C21) and the inner side pool wall (C25) of this element pond (C20) in unit cells (C20) is gradually increased；From outermost unit cells (C20) to pond of confluxing (C30), the volume of cell body is sequentially reduced；
(C22) is restrained in the rectification that goes out to flow to be provided with in region (C28) in each described unit cells (C20)。
8. a kind of black water flotation unit according to claim 4 or 6, it is characterized in that: it is netted intertexture and the hollow pipe (C40) interconnected that described bubble generator (C4) is set to many, is uniformly laid with pore (C400) on hollow pipe (C40) to face。
9. the black water floatation process of a black water flotation unit as described in any one of claim 1～7, it is characterised in that include following operation:
S1, medicament are vaporized mixing in advance: the collecting agent in floating agent and foaming agent are vaporized in advance respectively through medicament vapourizing unit in advance (A), then pass through medicament air mixing device (B) and are thoroughly mixed to form with air by vaporization medicament and mix gas；
S2, black water pre-classification flotation: passed into by mixing gas in black water pre-classification device (C) and carry out stage flotation, for the black water of 0.5～0.25mm and 0.25～0.125mm grade, when ash is lower than 10.50%, directly as product；When ash is higher than 10.50%, floatation equipment must be entered；The black water of 0.125～0.045mm grade is passed directly into floatation equipment；It is directly entered concentrator less than the black water of 0.045mm grade。
10. a kind of black water floatation process according to claim 9, it is characterised in that the mixing of vaporizing in advance of S1 Chinese medicine comprises the steps:
S10, by control system close electrically-controlled valve II (A13), electrically-controlled valve III (A22), open electrically-controlled valve IV (A26), vacuum pump (A27), now being evacuated in vaporizer vessel (A20), electric hot plate (A200) and electrothermal tube (A21) all begin to warm up and are in heated condition all the time；
S11, device for detecting temperature (A23) and pressure monitoring device (A24) are in running order all the time, when pressure monitoring device (A24) monitor force value reach medicament the best pressure for vaporization time, close vacuum pump (A27), close electrically-controlled valve IV (A26), open electrically-controlled valve I (A11) and electrically-controlled valve II (A13), opening high-pressure pump (A12), medicament is sprayed at a high speed vaporization under negative pressure high temperature action in vaporizer vessel (A20) by high-pressure pump (A12) through nozzle (A14)；Part medicament still in liquid and be gathered on electric hot plate (A200), will flow along electric hot plate (A200), and electric hot plate (A200) is in high temperature makes medicament continue vaporization；When temperature and pressure rises to marginal value, close high-pressure pump (A12), closedown electrically-controlled valve I (A11) and electrically-controlled valve II (A13), open electrically-controlled valve III (A22), collecting agent and foaming agent after vaporizing respectively will flow out along electrothermal tube (A21), simultaneously enter in medicament air mixing device (B), mix with air；
S12, it is not fully complete the medicament of vaporization and is gathered in the bottom of vaporizer vessel (A20), until flow monitoring device (A25) monitor flow go to zero time, close electrically-controlled valve III (A22), open electrically-controlled valve IV (A26) and vacuum pump (A27), the medicament of liquid will be drawn back into medicament barrel (A10), and vaporizer vessel (A20) will be evacuated again；
The step of the above-mentioned S10～S12 of S13, repetitive cycling, until medicament adds complete according to quantity。
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112474033A (en) * | 2020-11-05 | 2021-03-12 | 阜新工大矿物加工利用科技有限公司 | Coal slime pre-desliming and sorting process |
| CN113351363A (en) * | 2021-05-28 | 2021-09-07 | 中国矿业大学 | Difficult-to-separate gasified slag flotation separation method based on residual carbon particle pore filling |
| CN114522804A (en) * | 2022-02-18 | 2022-05-24 | 盘州市翔宇资源回收有限公司 | Fine coal slime separation process method |
| CN115626713A (en) * | 2022-11-21 | 2023-01-20 | 北京博汇特环保科技股份有限公司 | Sewage lifting device and biochemical reactor |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2098318U (en) * | 1991-05-26 | 1992-03-11 | 云南省曲靖地区第一人民医院 | High-efficiency membrane separating tower |
| DE10311289A1 (en) * | 2003-03-14 | 2004-09-23 | Minitec Engineering Gmbh | Processing oil-water mixtures and emulsions, for separation of water and hydrocarbons, involves using cracking agent and aliphatic hydrocarbon with raised pressures and temperatures |
| JP2011020070A (en) * | 2009-07-17 | 2011-02-03 | Japan Science & Technology Agency | Device and method for flotation separation and method for producing product using same |
| CN102274802A (en) * | 2011-07-13 | 2011-12-14 | 中国矿业大学 | System and method for deeply purifying coal |
| CN102716814A (en) * | 2012-06-26 | 2012-10-10 | 中国矿业大学 | Novel flotation column serial connection test system for improving flotation granularity upper limit |
| CN103949353A (en) * | 2014-05-14 | 2014-07-30 | 中国矿业大学 | Method and device for reinforcing oil bubble column floatation process of low-order coal |
| CN104147818A (en) * | 2014-07-14 | 2014-11-19 | 安徽理工大学 | Slime water classifying pool |
| CN204544468U (en) * | 2015-04-25 | 2015-08-12 | 西安科技大学 | A kind of coal slime flotation system based on gasification collecting agent |
| CN204544470U (en) * | 2015-04-25 | 2015-08-12 | 西安科技大学 | A kind of coal slime flotation system |
| CN204816911U (en) * | 2015-07-27 | 2015-12-02 | 中国矿业大学 | Collector adding medicament volume regulation and control system of flotation column in oil vacuole post flotation system |
| CN204911812U (en) * | 2015-07-28 | 2015-12-30 | 山西中煤华晋能源有限责任公司 | Flotation reagent's gasification equipment |
-
2016
- 2016-04-05 CN CN201610211612.4A patent/CN105689154B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2098318U (en) * | 1991-05-26 | 1992-03-11 | 云南省曲靖地区第一人民医院 | High-efficiency membrane separating tower |
| DE10311289A1 (en) * | 2003-03-14 | 2004-09-23 | Minitec Engineering Gmbh | Processing oil-water mixtures and emulsions, for separation of water and hydrocarbons, involves using cracking agent and aliphatic hydrocarbon with raised pressures and temperatures |
| JP2011020070A (en) * | 2009-07-17 | 2011-02-03 | Japan Science & Technology Agency | Device and method for flotation separation and method for producing product using same |
| CN102274802A (en) * | 2011-07-13 | 2011-12-14 | 中国矿业大学 | System and method for deeply purifying coal |
| CN102716814A (en) * | 2012-06-26 | 2012-10-10 | 中国矿业大学 | Novel flotation column serial connection test system for improving flotation granularity upper limit |
| CN103949353A (en) * | 2014-05-14 | 2014-07-30 | 中国矿业大学 | Method and device for reinforcing oil bubble column floatation process of low-order coal |
| CN104147818A (en) * | 2014-07-14 | 2014-11-19 | 安徽理工大学 | Slime water classifying pool |
| CN204544468U (en) * | 2015-04-25 | 2015-08-12 | 西安科技大学 | A kind of coal slime flotation system based on gasification collecting agent |
| CN204544470U (en) * | 2015-04-25 | 2015-08-12 | 西安科技大学 | A kind of coal slime flotation system |
| CN204816911U (en) * | 2015-07-27 | 2015-12-02 | 中国矿业大学 | Collector adding medicament volume regulation and control system of flotation column in oil vacuole post flotation system |
| CN204911812U (en) * | 2015-07-28 | 2015-12-30 | 山西中煤华晋能源有限责任公司 | Flotation reagent's gasification equipment |
Non-Patent Citations (1)
| Title |
|---|
| 张云龙等: "全截面气升式微泡浮选机的研制", 《金属矿山》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112474033A (en) * | 2020-11-05 | 2021-03-12 | 阜新工大矿物加工利用科技有限公司 | Coal slime pre-desliming and sorting process |
| CN113351363A (en) * | 2021-05-28 | 2021-09-07 | 中国矿业大学 | Difficult-to-separate gasified slag flotation separation method based on residual carbon particle pore filling |
| CN114522804A (en) * | 2022-02-18 | 2022-05-24 | 盘州市翔宇资源回收有限公司 | Fine coal slime separation process method |
| CN115626713A (en) * | 2022-11-21 | 2023-01-20 | 北京博汇特环保科技股份有限公司 | Sewage lifting device and biochemical reactor |
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