CN105772239A - Slime water microbubble classifying and desliming device - Google Patents
Slime water microbubble classifying and desliming device Download PDFInfo
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- CN105772239A CN105772239A CN201610211613.9A CN201610211613A CN105772239A CN 105772239 A CN105772239 A CN 105772239A CN 201610211613 A CN201610211613 A CN 201610211613A CN 105772239 A CN105772239 A CN 105772239A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C5/00—Apparatus in which the axial direction of the vortex is reversed
- B04C5/24—Multiple arrangement thereof
- B04C5/26—Multiple arrangement thereof for series flow
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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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- 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
- B03D1/1443—Feed or discharge mechanisms for flotation tanks
- B03D1/145—Feed mechanisms for reagents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C11/00—Accessories, e.g. safety or control devices, not otherwise provided for, e.g. regulators, valves in inlet or overflow ducting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C5/00—Apparatus in which the axial direction of the vortex is reversed
- B04C5/08—Vortex chamber constructions
- B04C5/081—Shapes or dimensions
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C5/00—Apparatus in which the axial direction of the vortex is reversed
- B04C5/08—Vortex chamber constructions
- B04C5/103—Bodies or members, e.g. bulkheads, guides, in the vortex chamber
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C9/00—Combinations with other devices, e.g. fans, expansion chambers, diffusors, water locks
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- Biotechnology (AREA)
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Abstract
The invention discloses a slime water microbubble classifying and desliming device. The device comprises multiple cylinders which are connected in series. The upper end of the first cylinder is provided with a feeding pipe in the tangential direction. The multiple cylinders are connected through connecting pipes at the top ends. The top end of the final-stage cylinder is provided with a discharging pipe in the tangential direction. The lower end of any cylinder is provided with a bubble generation device. The bottom end of the lower side of each bubble generation device is connected with a bottom flowing pipe and a discharging valve. The head ends of the connecting pipes between the cylinders are arranged in the flowing-out direction of slime water, and the tail ends of the connecting pipes between the cylinders are arranged in the flowing-in direction of the slime water. The bubble generation devices are arranged to be multiple hollow pipes which are interwoven in a net shape and communicate with one another, and air holes are evenly distributed in the upward faces of the hollow pipes. The diameters of the cylinders are gradually reduced from the first stage to the final stage. The slime water microbubble classifying and desliming device is simple in structure, stable in running and capable of ensuring the slime water treatment efficiency and meanwhile ensuring the slime water treatment effect.
Description
Technical field
The invention belongs to black water flotation technology field, be specifically related to a kind of black water microvesicle classification and desliming device.
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 prior art, black water typically directly carries out flotation, but the black water flotation in existing structure is consuming time more, and equipment energy consumption is higher, and flotation efficiency is relatively low.
Therefore, those skilled in the art need badly provides a kind of microvesicle classification that black water can carry out grade-classification and strengthening desliming simultaneously and desliming device.
Summary of the invention
For above-mentioned deficiency, the invention provides a kind of microvesicle classification that can black water be carried out grade-classification and strengthening desliming simultaneously and desliming device；This apparatus structure is simple, stable, both ensure that slime water treatment efficiency ensure that slime water treatment effect simultaneously.
For achieving the above object, present invention employs techniques below scheme:
A kind of black water microvesicle classification and desliming device, this 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.
Preferably, between described cylinder the head end of connecting tube, tail end respectively along the outflow direction of black water, inflow direction arrange.
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.
Further, the diameter of described cylinder is reduced backward step by step by the first order.
Further, described cylinder is provided with some concentric hollow cylinder dividing plates；The quantity of described hollow cylinder dividing plate is reduced backward step by step by the first order.
Further, described air vent aperture reduces backward step by step from first order cylinder.
Preferably, the input of described bubble generator (C4) is connected with the outfan of medicament air mixing device (B), one end of described medicament air mixing device (B) is connected with the air inlet pipe (B11) of supply air, and the other end is connected with the outfan of medicament vapourizing unit in advance (A).
Further, 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).
Further, described vaporizer vessel (A20) includes the multiple electric hot plates (A200) being arranged on 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.
Further, described vacuum-pumping pipeline includes the electrically-controlled valve IV (A26), the vacuum pump (A27) that are sequentially communicated with vaporizer vessel (A20) bottom, and described vacuum pump (A27) leads to medicament barrel (A10) by pipeline；Described electrothermal tube (A21) is additionally provided with flow monitoring device (A25) in the exit of electrically-controlled valve III (A22)；Described medicament barrel (A10) is provided with level monitoring device (A100)；
Described medicament vapourizing unit in advance (A) 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).
The beneficial effects of the present invention is:
1), the design of present configuration makes black water be fed with certain speed by cylinder upper end tangential direction, black water is made to form rotational flow field in cylinder, granule is moved downward by helically path, cylinder 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, 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 cylinder body bottom simultaneously, discharges cylinder by underflow pipe；Another part disturbance caused sedimentation velocity is less than ascending current speed, and this partial particulate, gradually to central motion, moves up to cylinder top simultaneously, tangentially mounted connecting tube flow into next cylinder.
Air is entered cylinder by cylinder lower end air Bubble generating apparatus, and forms bubble population and float rapidly, and owing to black water rotates the effect of centrifugal force formed, bubble is concentrated mainly on the axial approximate centerline of cylinder.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 of all series connection, afterbody cylinder 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；Achieve under simple in construction, stable premise and black water is carried out grade-classification and strengthening desliming simultaneously.
2), barrel diameter of the present invention reduced step by step backward by the first order, maintain flow velocity comparatively smoothly；Cylinder is provided with some hollow cylinder dividing plates being arranged concentrically, facilitates the ordered movement of granule and bubble, decrease the mutual collision of granule, increase the mutual collision between bubble and granule；Improve flotation effect.In the present invention, the size of bubble can be controlled by the small aperture on air Bubble generating apparatus, and in each cylinder, bubble size is all different is reduced backward step by step by the first order, consistent with the change of the diameter of cylinder.
The present invention is using multistage cylinder as " particle grading device " of different-grain diameter, and the hollow cylinder dividing plate installed in each cylinder is as " fluidised form control device ", and is mounted on " air Bubble generating apparatus " in the downside of each cylinder.The bubble size that " air Bubble generating apparatus " in " particle grading device " of different-grain diameter produces is different, and rule is that grain graininess is more thin, and bubble size is more little.The quantity of each cylinder hollow core cylindrical separator is different, and barrel diameter is more little, and contained tube bank is more few.
null3)、The input of the bubble generator in the present invention both can be connected with air，Can also be connected with medicament air mixing device，When the input of bubble generator is connected with medicament air mixing device，Medicament air mixing device makes electric hot plate and electrothermal tube heating (and being in heated condition all the time) by control system，Temperature-detecting device 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，Control medicament and sprayed into vaporizer vessel by high-pressure pump through nozzle at high speeds，Due to negative pressure high temperature action，Medicament will quickly be vaporized，Owing to cannot ensure that medicament 100% is vaporized，Part medicament will still in liquid，And be gathered on electric hot plate，Flow along electric hot plate，Electric hot plate is in high temperature，Medicament can be made to continue vaporization，Now monitoring temperature and pressure value，When temperature and pressure rises to marginal value，Close high-pressure pump、Close electrically-controlled valve II、Open electrically-controlled valve IV，Vaporization medicament will along electrothermal tube bleeder，Enter next stage operation，The medicament being not fully complete vaporization is gathered in the bottom of vaporizer vessel，Until flow monitoring device monitor flow go to zero time，Close electrically-controlled valve IV、Open electrically-controlled valve II and vacuum pump，The medicament of liquid will be drawn back into medicament barrel，Vaporizer vessel will be evacuated again，So circulation is until medicament is completely vaporised，Enter subordinate's operation.
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.”
Present configuration design is simple, and medicament is fully vaporized and will be effectively improved medicament with black water contact area it is thus possible to significantly improve black water pretreating effect.
4), the projecting end layout interlaced with each other of the multiple electric hot plates in the medicament of present invention vapourizing unit in advance constitute medicament flow channel, 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.
5), the present invention can be realized the automatization of medicament vaporization process by control system, 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.
Accompanying drawing explanation
Fig. 1 is the structure schematic diagram of embodiment Chinese medicine vapourizing unit in advance.
Fig. 2 is the structure schematic diagram of embodiment Chinese medicine air mixing device.
Fig. 3 is the structure schematic diagram of black water microvesicle classification of the present invention and desliming device.
Fig. 4 is the top view of single cylinder in Fig. 3.
Fig. 5 is the structure schematic diagram of another kind of black water pre-classification device in embodiment.
Fig. 6 is the left view of Fig. 5.
Fig. 7 is the structure schematic diagram of bubble generator in embodiment.
Fig. 8 is the flow chart of floatation process in embodiment.
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 and claimed black water microvesicle classification and desliming device: described black water microvesicle classification includes the multiple cylinder C1 connected with desliming device; 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 accordingly according to cylinder.
This grading plant 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 the neighbouring main distribution of longitudinal center line is " all the other granules ", 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).
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.
The subsequent technique of the present invention is flotation, judges whether to enter flotation according to the ash of graded product.
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, S1 Chinese medicine is vaporized in advance and is comprised 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 microvesicle classification and desliming device, it is characterized in that: this device 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.
2. a kind of black water microvesicle classification according to claim 1 and desliming device, 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.
3. a kind of black water microvesicle classification according to claim 2 and desliming device, 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.
4. a kind of black water microvesicle classification according to claim 3 and desliming device, it is characterised in that: the diameter of described cylinder (C1) is reduced backward step by step by the first order.
5. a kind of black water microvesicle classification according to claim 4 and desliming device, it is characterized in that: being provided with some concentric hollow cylinder dividing plates (C10) in described cylinder (C1), the quantity of described hollow cylinder dividing plate (C10) is reduced backward step by step by the first order.
6. a kind of black water microvesicle classification according to claim 3 and desliming device, it is characterised in that: described pore (C400) aperture reduces backward step by step from first order cylinder.
7. a kind of black water microvesicle classification according to claim 3 and desliming device, it is characterized in that: the input of described bubble generator (C4) is connected with the outfan of medicament air mixing device (B), one end of described medicament air mixing device (B) is connected with the air inlet pipe (B11) of supply air, and the other end is connected with the outfan of medicament vapourizing unit in advance (A).
8. a kind of black water microvesicle classification according to claim 7 and desliming device, it is characterized in that: described medicament vapourizing unit in advance (A) includes medicament barrel (A10), 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).
9. a kind of black water microvesicle classification according to claim 8 and desliming device, 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.
10. a kind of black water microvesicle classification according to claim 8 and desliming device, it is characterized in that: described vacuum-pumping pipeline includes the electrically-controlled valve IV (A26), the vacuum pump (A27) that are sequentially communicated with vaporizer vessel (A20) bottom, and described vacuum pump (A27) leads to medicament barrel (A10) by pipeline；Described electrothermal tube (A21) is additionally provided with flow monitoring device (A25) in the exit of electrically-controlled valve III (A22)；Described medicament barrel (A10) is provided with level monitoring device (A100)；
Described medicament vapourizing unit in advance (A) 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).
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| CN105772239B (en) | 2018-09-28 |
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