CN104907184A - Pre-desliming and microbubble static-modularity flotation system - Google Patents
Pre-desliming and microbubble static-modularity flotation system Download PDFInfo
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- CN104907184A CN104907184A CN201510319807.6A CN201510319807A CN104907184A CN 104907184 A CN104907184 A CN 104907184A CN 201510319807 A CN201510319807 A CN 201510319807A CN 104907184 A CN104907184 A CN 104907184A
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Abstract
The invention discloses a pre-desliming and microbubble static-modularity flotation system. The system comprises a pre-desliming flotation mechanism and a microbubble static-modularity flotation mechanism. The pre-desliming flotation mechanism comprises a support facilitating fixed mounting, a self-interference elastic-rectification and desliming unit, a pulp delivery pump and a pulp delivery pipe which are connected integrally. The microbubble static-modularity flotation mechanism comprises a plurality of tanks communicated integrally, a plurality of flotation units are distributed in any tank uniformly, a feeding pipe for feeding into the flotation units in the first tank is arranged at the lateral edge of the first tank, a tailing discharging port is formed in the lateral edge of the tail tank correspondingly, concentrate collecting tanks, distributed among and on two sides of the flotation units along the feeding pipe direction, are arranged in any tank, a swirl injection device is mounted at the bottom of any flotation unit, and the feeding pipe of the microbubble static-modularity flotation mechanism is connected with the pulp delivery pipe of the pre-desliming flotation mechanism. The pre-desliming and microbubble static-modularity flotation system is stable in operation, high in treating capacity and capable of improving flotation quality and flotation efficiency remarkably.
Description
Technical field
The invention belongs to sorting mineral technical field, be specifically related to a kind of pre-desliming microvesicle static flotation system.
Background technology
In wet coal preparation process, be mixed into clay minerals in coal seam and meet after water soaking by argillization, be dispersed into thin mud, accumulate in float coal slurry.High grey fine slime flotation speed is fast, causes foam " to be clamminess ", brings difficulty to follow-up floatation clean coal dewatering operation.Thin mud specific area is large simultaneously, and " trying to be the first " absorption floating agent, makes general coal grain not obtain medicament.The difficulty of general coal grain and bubble adhesion is increased, worsens flotation effect, produce totally unfavorable, so be necessary to select front desliming to coal preparation plant's coal slime to coal separation.And existing floatation feed desliming pond floor space is large, and ascending current is become laminar flow from turbulent flow, the time period by the vertical tube pencil fairing adopted, and free settling is insufficient.
Simultaneously in flotation stage, for conventional air jet flotation machine because of not arranging agitating device, when pulp density is higher, can not provide enough power to realize ore pulp, bubble, floating agent abundant mixing disperse; And the energy consumption that the high rotating speed of the agitating device of agitation impeller flotator needs is higher, and the low flow field that can not be formed of rotating speed and inspiratory capacity, and novel injection air-breathing rabbling mechanism floods injection stream close to plume due to the ore pulp of jet segment, spray energy major part to be consumed by ore pulp, therefore ejection efficiency subtracts greatly, stirring efficiency is subtracted greatly, and flow field is stirred in interference.Chinese patent literature CN101362119A provides a kind of flotation column for sorting mineral, comprise cylinder, the concentrate feeder from top to bottom separated successively in cylinder, separation tube and tailings discharging case, concentrate feeder is provided with multiple concentrate floss hole, is connected with inflator pump outside separation tube.This pneumatic flotation cell is simple and compact for structure, energy-efficient, but with regard to stirring intensity, disposal ability is still strong not.
Therefore, those skilled in the art need badly provides a kind of structure simple pre-desliming microvesicle static module floatation system, first effectively carries out predictive desliming to floatation feed, then carries out the flotation of microvesicle static module.
Summary of the invention
The present invention, in order to overcome above-mentioned the deficiencies in the prior art, provides the simple pre-desliming microvesicle static module floatation system of a kind of structure, first effectively carries out predictive desliming to floatation feed, then carry out the flotation of microvesicle static module.This system run all right, disposal ability is large, and can significantly improve flotation quality and efficiency.
For achieving the above object, present invention employs following technical scheme:
A kind of pre-desliming microvesicle static module floatation system, this system comprises pre-de slime flotation mechanism and microvesicle static module flotation mechanism;
Described pre-de slime flotation mechanism comprises support and is fixedly mounted on self-interference elasticity rectification desliming unit support being interconnected as one, pump for mortar transmission, and feed pipe for mortar;
Described microvesicle static module flotation mechanism comprises the multiple cell bodies be communicated as one; Multiple flotation cells is evenly distributed with in arbitrary described cell body, the feeding pipe to its inner flotation cells feeding is provided with at the side of first cell body, discharge the mine tailing mouth of mine tailing corresponding being provided with of the side of last cell body, be also provided with in arbitrary cell body along feeding pipe directional spreding between flotation cells and the concentrate feeder of both sides; The bottom of arbitrary described flotation cells is all provided with swirling jet unit, and the top of the inherent swirling jet unit jet of arbitrary described flotation cells is provided with the radome fairing for disperseing gassiness ore pulp flow direction; Arbitrary described flotation cells top is equipped with the spray equipment promoting that concentrate foam moves to concentrate feeder near the adjacent place of concentrate feeder;
The output of the feed pipe for mortar of described pre-de slime flotation mechanism is connected with the feeding pipe of microvesicle static module flotation mechanism.
Preferably, described self-interference elasticity rectification desliming unit is circular symmetrical structure, comprises and enters feed bin, material guiding tube, self-interference elasticity rectification desliming device, and underflow collecting bin along the ore pulp connected successively from top to bottom; Described ore pulp enters feed bin upper end and is provided with the first feeding mouth, and described ore pulp enters feed bin limit wall is provided with the ore pulp be connected with material guiding tube uniformly distributes discharging opening.
Further, described self-interference elasticity rectification desliming device is set to multiple and the ore pulp that distributes symmetrically ringwise enters below feed bin, described self-interference elasticity rectification desliming device comprises the pan feeding valve of the adjustment aperture be connected with material guiding tube, and is connected with pan feeding valve and is provided with the inclination casing of the first underflow opening and overfall.
Further, be installed with in described inclination casing and be positioned at the split-flow baffles of pan feeding valve lower end near cabinet exterior, near the drainage dividing plate of cabinet wall, the elasticity tipping tube fairing between drainage dividing plate and cabinet wall; Described split-flow baffles and drainage dividing plate form and are divided into the position of the first up-narrow and down-wide material drainage channel and the second material drainage channel wide at the top and narrow at the bottom to coordinate the flow of slurry introduced from pan feeding valve; Described second material drainage channel forms self-interference mixed zone by convection current interference in the bottom of inclination casing to the first material drainage channel.
Described elasticity tipping tube rectification mechanism is parallel with drainage dividing plate, and is set to the oblique lattice shape rectification hole bundle that the cross section surrounded by hang plate is parallelogram; The edge that described elasticity inclination tube bank rectification mechanism connects inclination casing and drainage dividing plate is set to the different automatic fine tunings spring be highly convenient to according to feed thickness and feeding.
Described overfall to be positioned on cabinet wall and higher than the upper surface of elasticity tipping tube fairing, described overfall place is also connected with and guides the derivation groove that in elasticity tipping tube fairing, ore pulp overflows, and described derivation groove is set to the cell body identical with the casing width that tilts; Controlled the opening and closing of the first underflow opening by underflow valve in described self-interference mixed zone.
Further, described underflow collecting bin is located at the centre position of interference elasticity rectification desliming device separately, and described underflow collecting bin limit wall is provided with the second feeding mouth for connecting self-interference elasticity rectification desliming device first underflow opening uniformly; Described underflow collecting bin lower end is provided with the second underflow opening; The entrance of described pump for mortar transmission is connected with the second underflow opening of underflow collecting bin, and the outlet of described pump for mortar transmission is connected with feed pipe for mortar one end.
Preferably, in described microvesicle static module flotation mechanism, the middle and upper part of arbitrary described cell body is also provided with the cowling panel for steady flow condition fluidised form, described cowling panel is set to the space bar being evenly distributed with ramp way, and described cowling panel forms the single channel be convenient to mineralized particles and floated.
Preferably, described cell body is set to 2 ~ 6 grooves; Flotation cells in arbitrary cell body is set to 4 ~ 10 groups, and wherein, the flotation cells in last cell body is than many 2 groups or 4 groups of flotation cells in cell body above; The mine tailing of arbitrary described cell body enters the downside of next cell body cowling panel by " Z " font circulation port, until finally discharged by mine tailing mouth.
Preferably, described swirling jet unit comprises buffer barrel, the delivery pump be connected with buffer barrel, nozzle and is connected the pipeline of delivery pump and nozzle, and described pipeline is also connected with bubble generator; Described bubble generator comprises Pressure gauge, flow takes into account compressed air, and the formation that arranges of described bubble generator makes air be pumped to the cooperation of nozzle through delivery pump with material in buffer barrel;
Be provided with the guide vane of the gassiness ore pulp formation eddy flow that proportioning pump is sent in described nozzle, described guide vane is set to 4 ~ 6; Described pipeline is set to trunnion, and described nozzle and pipe joint are designed with the gate be convenient to flotation unit and overhauled.
Preferably, described radome fairing is set to segment shape; Described radome fairing be arranged so that gassiness ore pulp is penetrated change flow direction on radome fairing after swirling jet unit ejection, form two " V " flow field.
Preferably, described " overhead kick " shape direction is located in the plane perpendicular to feeding pipe, and meanwhile, the setting in " overhead kick " shape direction is beneficial to froth bed and moves to concentrate feeder direction; Also float skimming device is provided with along between the concentrate feeder and described spray equipment of feeding pipe directional spreding flotation cells both sides in cell body.
Beneficial effect of the present invention is:
1), the present invention by conjunction with pre-de slime flotation mechanism and microvesicle static module flotation mechanism, first by carrying out predictive desliming to floatation feed, ensure the flotation effect in later stage; Then by microvesicle static module flotation unit, multiple-grooved flotation body is carried out to the mineral aggregate through pre-desliming process; The two combines and significantly improves flotation quality and efficiency.
2), pre-de slime flotation mechanism of the present invention by the self-interference elasticity rectification desliming unit being interconnected as one, pump for mortar transmission, feed pipe for mortar and be convenient to being configured to of fixed support.The ore pulp distribution discharging opening that black water enters feed bin from ore pulp goes out stream, under the control of pan feeding valve, self-interference elasticity rectification desliming device is entered through material guiding tube, two bursts of material flow that threshold speed is identical are split at split-flow baffles place, one material flow is carried downwards along the first material drainage channel, one material flow is carried downwards at the second material drainage channel with same initial velocity edge in addition, and form interference stream upwards with high velocity stream in self-interference mixed zone, bottom due to design wide at the top and narrow at the bottom, thus carry out self-interference sedimentation with the logistics in the first material drainage channel, acceleration cleaned coal is separated with thin mud, thus ensure effectively removing of thin mud material.Through hindered falling, plaster flows out from overfall through guiding gutter along with overflow, underflow materials flows out from the first underflow opening of self-interference elasticity rectification desliming device and converges at underflow collecting bin simultaneously, enters pump for mortar transmission, be transported in microvesicle static module flotation mechanism by pump for mortar transmission through the second underflow opening.
Pre-de slime flotation mechanism structure of the present invention is simple, and floor space is little, and apparatus arrangement is convenient, and can adopt multi-machine parallel connection material handling, treating capacity is large simultaneously; Unit is unpowered structure, decreases energy resource consumption, adds service life of equipment.
3) the second material drainage channel that, self-interference elasticity rectification desliming device employing cross section of the present invention is wide at the top and narrow at the bottom, form high velocity stream, in self-interference mixed zone, convection current interference is formed to the material flow bottom the first material drainage channel, thus make material carry out hindered falling, acceleration cleaned coal is separated with thin mud, reduce floatation feed viscosity, improve flotation efficiency.
4), self-interference elasticity rectification desliming device of the present invention be arranged so that mix logistics in the process highly constantly risen, tilt to restrain the rectification hole on rectification mechanism by elasticity, turbulent flow is become comparatively orderly laminar flow, and the setting of hang plate increases settling area, shortens settling height, accelerate particles settling; Self-interference elasticity rectification desliming device adopts elasticity hang plate fairing to adopt elasticity to connect, the buoyancy difference produced according to the difference of feed thickness and feeding can automatic fine tuning height, ensure that overflow material has the rational time to carry out hindered falling, thus ensure effectively removing of thin mud material, improve sorting desliming effect.
5), microvesicle static module flotation mechanism of the present invention is made up of cell body, swirling jet unit, bubble generator, radome fairing, cowling panel, spray equipment, zigzag circulation port, concentrate feeder.Cell body is set to 2 ~ 6 grooves, and every groove is made up of 4 ~ 10 flotation cells, and the flotation cells number of last cell body is than many 2 groups or 4 groups of cell body above; The bottom of each flotation cells is provided with swirling jet unit, its power source from supporting delivery pump, two groups of adjacent swirling jet units can share a delivery pump, and bubble generator installed by the pipeline of delivery pump, and gassiness ore pulp sprays from injection apparatus with certain initial velocity, penetrate on radome fairing, fluid dynamic energy reduces, and changes flow direction, forms two " V " flow field, bubble contacts with hydrophobicity ore particle in uphill process, forms mineral laden bubble; Then, by the cowling panel installed in the middle and upper part of cell body, further steady flow condition fluidised form, forms the single channel that mineralized particles floats; Be equipped with " overhead kick " shape spray equipment promoting that concentrate foam moves to concentrate feeder near the adjacent place of concentrate feeder on each flotation cells top, define in sufficient " secondary enrichment spray district ", concentrate scrapes fall into concentrate feeder via scraping bubble device.The mine tailing of every groove is entered on the downside of next cell body cowling panel by zigzag circulation port, and true tailings is discharged by mine tailing mouth.
Microvesicle static flotation device adopts modular construction, and structure is simple, and it basic composition is flotation cells, and through multiple-grooved flotation body, reach higher concentrate flotation rate, the Oversized Coking Coal Cleaning Plant for all kinds of factories type all has good adaptability; Simultaneously this device is mechanical agitating device, adds the rectified action of radome fairing, cowling panel, guarantees that whole flotation device interior flow field is very stable, just like staticize work, for stable operation, energy-efficiently to lay a good foundation.
6), the cell body of microvesicle static module flotation mechanism of the present invention is set to 2 ~ 6 grooves, and every groove is made up of 4 ~ 10 flotation cells, has larger disposal ability, can need make adjustment according to actual treatment ability, meet the flotation requirement in production process; Wherein, because along with the carrying out of floatation process, the coal slime of last cell body or mine tailing mostly are difficult floating particles, by increasing the flotation cells number of 2 groups or 4 groups end cell bodies, this part coal slime floating probability can be improved.Further guarantee flotation efficiency.
7) medicament, in microvesicle static module flotation mechanism buffer barrel of the present invention or ore pulp are carried by delivery pump, the discharge nozzle of delivery pump is provided with bubble generator, air is charged in ore pulp or medicament, air moves to nozzle with ore pulp or medicament, have one group of guide vane in nozzle, one group of guide vane generally comprises 4-6 blade; Ore pulp sprays from nozzle with certain rotary speed, after anterior trunnion current stabilization, and directive radome fairing.Bubble feeds the trunnion pipeline of bottom by bubble generator, and gas bubble degree is large, and front and back pressure reduction is large, easily realizes microfoam flotation; Be designed with gate at nozzle and pipe joint, when flotation body stop, maintenance time can closed shutter, thus prevent ore pulp from flowing backwards, add service life and the using value of this device.
8), in the present invention microvesicle static module flotation mechanism cowling panel is set to the space bar being evenly distributed with ramp way, thus forms the single channel be convenient to mineralized particles and floated; Cowling panel, on the one hand for secondary enrichment provides stable froth bed, prevents the iterative cycles motion in cell body of the particle of mineralising on the other hand, further ensures the high efficiency of flotation.
Because floatation process needs stable flow field, in order to reduce fluid movement velocity upwards, the radome fairing of segment shape is installed above jet expansion.Gassiness flow of slurry flowing velocity after radome fairing reduces, and the direction of motion changes, and forms two " V " flow field in flotation cells.Radome fairing in the present invention further promotes the uniform and stable of flotation.
9), in the present invention, microvesicle static module flotation mechanism is equipped with " overhead kick " shape spray equipment promoting that concentrate foam moves to concentrate feeder near the adjacent place of concentrate feeder on each flotation cells top, produce " secondary enrichment " on the one hand, froth bed is impelled to move to concentrate feeder direction on the other hand, be conducive to the timely discharge of concentrate foam, concentrate scrapes fall into concentrate feeder via scraping bubble device." the secondary enrichment " of indication refers to that mineral laden bubble has arrived froth zone, a large amount of gathering, bubble rises floating speed to be reduced, and bubble merging increases, water-band under letting out when hydration shell breaks in merger process walks to be clipped in the mine tailing of hydrophobicity difference in froth bed, effectively improves the quality of concentrate.
10), in the present invention microvesicle static module flotation mechanism cell body between, connect with " Z " font circulation port, the suspension that the non-mineralising of first groove is discharged is transported to next flotation Mineralized Area, cell body middle and lower part, realize the mineralising again of material on the one hand, ensure that top foam collecting region fluid stable on the other hand, ensure that flotation effect index.
Accompanying drawing explanation
Fig. 1 is the structural representation of the pre-de slime flotation mechanism of the present invention.
Fig. 2 is the structural representation of self-interference elasticity rectification desliming device of the present invention.
Fig. 3 is the schematic enlarged-scale view of Fig. 2 Elastic tipping tube fairing.
Fig. 4 is the schematic enlarged-scale view at overfall place in Fig. 2.
Fig. 5 is the front view of microvesicle static module flotation mechanism of the present invention.
Fig. 6 is the top view of Fig. 1.
Fig. 7 is the side view of Fig. 2.
Fig. 8 is the structural representation of cowling panel of the present invention.
Fig. 9 is the structural representation of swirling jet unit of the present invention.
Figure 10 is the top view of nozzle of the present invention.
Figure 11 is the stereochemical structure schematic diagram of nozzle of the present invention.
Figure 12 is the structure schematic diagram of spray equipment of the present invention.
In figure, the implication of label symbol is as follows:
A-pre-de slime flotation mechanism B-microvesicle static module flotation mechanism
10-desliming unit 11-ore pulp enters feed bin 110-first feeding mouth 111-ore pulp and distributes discharging opening
12-material guiding tube 13-self-interference elasticity rectification desliming device 130-pan feeding valve 131-inclination casing
1310-underflow valve 1311-first underflow opening 1312-overfall 132-split-flow baffles
133-drainage dividing plate 134-elasticity tipping tube fairing 1340-hang plate 1341-rectification hole
1342-spring 135-first material drainage channel 136-second material drainage channel
137-self-interference mixed zone 138-derives groove 14-underflow collecting bin
141-second feeding mouth 142-second underflow opening 20-pump for mortar transmission 30-feed pipe for mortar
40-cell body 41-flotation cells 42-concentrate feeder 43-cowling panel
50-swirling jet unit 500-buffer barrel 501-delivery pump 502-nozzle
5020-guide vane 503-bubble generator 504-gate 60-spray equipment
51-radome fairing 61-float skimming device
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
A kind of pre-desliming microvesicle static module floatation system, this system comprises pre-de slime flotation mechanism A (as shown in Figures 1 to 4) and microvesicle static module flotation mechanism B (as shown in Fig. 5 to Figure 12);
As shown in Figure 1, described pre-de slime flotation mechanism comprises support (not shown in FIG.) and is fixedly mounted on the self-interference elasticity rectification desliming unit 10 support being interconnected as one, pump for mortar transmission 20, and feed pipe for mortar 30;
As shown in Fig. 5,6,7, described microvesicle static module flotation mechanism comprises the multiple cell bodies 40 be communicated as one; Multiple flotation cells 41 is evenly distributed with in arbitrary described cell body 40, the feeding pipe to its inner flotation cells 41 feeding is provided with at the side of first cell body, discharge the mine tailing mouth of mine tailing corresponding being provided with of the side of last cell body, be also provided with in arbitrary cell body 40 along feeding pipe directional spreding between flotation cells 41 and the concentrate feeder 42 of both sides; The bottom of arbitrary described flotation cells 41 is all provided with swirling jet unit 50, and the top of arbitrary described flotation cells 41 inherent swirling jet unit 50 jet is provided with the radome fairing 51 for disperseing gassiness ore pulp flow direction; Arbitrary described flotation cells 41 top is equipped with the spray equipment 60 promoting that concentrate foam moves to concentrate feeder 42 near the adjacent place of concentrate feeder 42;
The output of the feed pipe for mortar 30 of described pre-de slime flotation mechanism A is connected with the feeding pipe of microvesicle static module flotation mechanism B.
As shown in Figure 1, described self-interference elasticity rectification desliming unit 10 is circular symmetrical structure, comprises and enters feed bin 11, material guiding tube 12, self-interference elasticity rectification desliming device 13, and underflow collecting bin 14 along the ore pulp connected successively from top to bottom; Described ore pulp enters feed bin 11 upper end and is provided with the first feeding mouth 110, and described ore pulp enters feed bin 11 limit wall is provided with the ore pulp be connected with material guiding tube 12 uniformly distributes discharging opening 111.
As shown in Figure 2, described self-interference elasticity rectification desliming device 13 is set to multiple and the ore pulp that distributes symmetrically ringwise enters below feed bin 11, described self-interference elasticity rectification desliming device 13 comprises the pan feeding valve 130 of the adjustment aperture be connected with material guiding tube 12, and is connected with pan feeding valve 130 and is provided with the inclination casing 131 of the first underflow opening 1311 and overfall 1312.
Be installed with in described inclination casing 131 and be positioned at the split-flow baffles 132 of pan feeding valve 130 lower end near cabinet exterior, near the drainage dividing plate 133 of cabinet wall, the elasticity tipping tube fairing 134 between drainage dividing plate 133 and cabinet wall; Described split-flow baffles 132 and drainage dividing plate 133 form and are divided into the position of the first up-narrow and down-wide material drainage channel 135 (as shown in phantom in Figure 2) and the second material drainage channel 136 (as shown in phantom in Figure 2) wide at the top and narrow at the bottom to coordinate the flow of slurry introduced from pan feeding valve 130; Described second material drainage channel 136 forms self-interference mixed zone 137 by convection current interference in the bottom of inclination casing 131 to the first material drainage channel 135.
Shown in composition graphs 3, described elasticity tipping tube rectification mechanism 134 is parallel with drainage dividing plate 133, and to be set to the cross section surrounded by hang plate 1340 be that the oblique lattice shape rectification hole 1341 of parallelogram is restrainted; The edge that described elasticity inclination tube bank rectification mechanism 134 connects inclination casing 131 and drainage dividing plate 133 is set to the different automatic fine tunings spring 1342 be highly convenient to according to feed thickness and feeding.
Shown in composition graphs 4, described overfall 1312 to be positioned on cabinet wall and higher than the upper surface of elasticity tipping tube fairing 134, described overfall 1312 place is also connected with and guides the derivation groove 138 that in elasticity tipping tube fairing 134, ore pulp overflows, and described derivation groove 138 is set to the cell body identical with casing 131 width that tilts; The opening and closing of the first underflow opening 1311 is controlled by underflow valve 1310 in described self-interference mixed zone 137.
Described underflow collecting bin 14 is located at the centre position of interference elasticity rectification desliming device 13 separately, and described underflow collecting bin 14 limit wall is provided with the second feeding mouth 141 for connecting self-interference elasticity rectification desliming device 13 first underflow opening 1311 uniformly; Described underflow collecting bin 14 lower end is provided with the second underflow opening 142; The entrance of described pump for mortar transmission 20 is connected with the second underflow opening 142 of underflow collecting bin 14, and the outlet of described pump for mortar transmission 20 is connected with feed pipe for mortar 30 one end.
Shown in composition graphs 8, the middle and upper part of arbitrary described cell body 40 is also provided with the cowling panel 43 for steady flow condition fluidised form.Described cowling panel 43 is set to the space bar being evenly distributed with ramp way, and described cowling panel 43 forms the single channel be convenient to mineralized particles and floated.Described cell body is set to 4 grooves; Flotation cells 41 in each cell body 40 is set to 4 groups, and wherein, the flotation cells 41 in last cell body is than the flotation cells more than 41 2 groups or 4 groups in cell body above.
The mine tailing of arbitrary described cell body 40 is entered the downside of next cell body 40 cowling panel 43 by " Z " font circulation port, until finally discharged by mine tailing mouth, and the mouth of pipe of feeding pipe and mine tailing mouth are all set to " Z " font being convenient to stable charging discharging.
Shown in composition graphs 9, described swirling jet unit 50 comprises buffer barrel 500, the delivery pump 501, the nozzle 502 that are connected with buffer barrel 500 and is connected delivery pump 501 and the pipeline of nozzle 502, and described pipeline is also connected with bubble generator 503; Described bubble generator 503 comprises Pressure gauge, flow takes into account compressed air, and the formation that arranges of described bubble generator 503 makes air be pumped to the cooperation of nozzle 502 through delivery pump 501 with material in buffer barrel 500.
As shown in Figure 10,11, be provided with an assembly in described nozzle 502 and close the guide vane 5020 that the gassiness ore pulp be pumped into forms eddy flow, described guide vane 5020 is set to 4 ~ 6; Described pipeline is set to trunnion, and described nozzle 502 is designed with pipe joint the gate 504 be convenient to flotation unit and overhauled.
As shown in Figure 7, two adjacent groups swirling jet unit shares a delivery pump 501.
As shown in Figure 5, described radome fairing 51 is set to segment shape; Described radome fairing 51 be arranged so that gassiness ore pulp is penetrated on radome fairing 51 and changed flow direction after swirling jet unit 50 sprays, form two " V " flow field.
As shown in figure 12, described " overhead kick " shape direction is located in the plane perpendicular to feeding pipe, and meanwhile, the setting in " overhead kick " shape direction is beneficial to froth bed and moves to concentrate feeder 42 direction; Float skimming device 61 is provided with along between the concentrate feeder 42 and described spray equipment 60 of feeding pipe directional spreding flotation cells 41 both sides in cell body 40.
Be further described in detail below in conjunction with the course of work of accompanying drawing to native system.
First, the ore pulp distribution discharging opening 111 that black water enters feed bin 11 from ore pulp goes out stream, under the control of pan feeding valve 130, self-interference elasticity rectification desliming device 13 is entered through material guiding tube 12, two bursts of material flow that threshold speed is identical are split at split-flow baffles 132 place, one material flow is carried downwards along the first material drainage channel 135, one material flow is carried downwards at the second material drainage channel 136 with same initial velocity edge in addition, and to form interference stream upwards in self-interference mixed zone, bottom 137 with high velocity stream due to design wide at the top and narrow at the bottom, thus carry out self-interference sedimentation with the logistics in the first material drainage channel 135, acceleration cleaned coal is separated with thin mud, thus ensure effectively removing of thin mud material, then mix logistics height constantly to rise, to be tilted the rectification hole on tube bank rectification mechanism 134 by elasticity, turbulent flow becomes orderly laminar flow, and the setting of hang plate 1340 increases settling area shortens settling height simultaneously, accelerates particles settling, simultaneously elasticity tilts the different automatic fine tuning height of buoyancy that tube bank rectification mechanism 134 can be produced according to the difference of feed thickness and feeding by the spring 1342 of edge, ensure that overflow material has the rational time to carry out hindered falling, thus ensure effectively removing of thin mud material.
Through hindered falling, plaster flows out from overfall 1312 through guiding gutter 138 along with overflow, underflow materials flows out from the first underflow opening 1311 of self-interference elasticity rectification desliming device 13 and converges at underflow collecting bin 14 simultaneously, enter pump for mortar transmission 20 through the second underflow opening 142 again, to be then transported in microvesicle static module flotation mechanism B by feed pipe for mortar 30 by pump for mortar transmission 20 and to carry out further flotation.
Be provided with 4 cell bodies in the present embodiment microvesicle static module flotation mechanism B, the arbitrary cell body 40 except last cell body forms by 4 groups of flotation cells 41, and flotation cells 41 number of last cell body, than many 2 groups of cell body above, is 6 groups.Each flotation cells 41 volume is 8m
3.
When flotation material enters first cell body from " Z " font mouth of pipe of feeding pipe, swirling jet unit 50 in first cell body bottom flotation cells 41 is started working, ore pulp or medicament fall from buffer barrel 500, after bubble generator 503 entrained gas, gassiness ore pulp or gassiness medicament or ore pulp are pumped in trunnion with the gassiness thing that mixes of both medicaments through delivery pump 501, spray with the nozzle 502 of certain initial velocity from swirling jet unit 50, penetrate on the radome fairing 51 of segment shape, thus fluid dynamic energy is reduced, change flow direction, form two " V " flow field, bubble contacts with hydrophobicity ore particle in uphill process, form mineral laden bubble, then, by the cowling panel 43 installed in the middle and upper part of cell body 40, further steady flow condition fluidised form, forms the single channel that mineralized particles floats, finally arrive the top of cell body 40, after " overhead kick " shape spray equipment 60 on flotation cells 41 top, facilitate concentrate foam to move to concentrate feeder 42, to scrape via float skimming device 61 along the concentrate of feeding pipe directional spreding flotation cells 41 both sides in cell body 40 and fall into concentrate feeder 42, the froth bed be distributed in cell body 40 in the middle of flotation cells 41 then relies on foam to collect from overflowing.The mine tailing of every groove enters on the downside of next cell body cowling panel 43 by " Z " font circulation port, and true tailings is discharged by " Z " font mine tailing mouth.
Claims (10)
1. a pre-desliming microvesicle static module floatation system, is characterized in that: this system comprises pre-de slime flotation mechanism (A) and microvesicle static module flotation mechanism (B);
Described pre-de slime flotation mechanism (A) comprises support and is fixedly mounted on self-interference elasticity rectification desliming unit (10) support being interconnected as one, pump for mortar transmission (20), and feed pipe for mortar (30);
Described microvesicle static module flotation mechanism (B) comprises the multiple cell bodies (40) be communicated as one; Multiple flotation cells (41) is evenly distributed with in arbitrary described cell body (40), the feeding pipe to its inner flotation cells (41) feeding is provided with at the side of first cell body, discharge the mine tailing mouth of mine tailing corresponding being provided with of the side of last cell body, be also provided with in arbitrary cell body (40) along feeding pipe directional spreding between flotation cells (41) and the concentrate feeder (42) of both sides; The bottom of arbitrary described flotation cells (41) is all provided with swirling jet unit (50), and the top of arbitrary described flotation cells (41) inherent swirling jet unit (50) jet is provided with the radome fairing (51) for disperseing gassiness ore pulp flow direction; Arbitrary described flotation cells (41) top is equipped with the spray equipment (60) promoting that concentrate foam moves to concentrate feeder (42) near the adjacent place of concentrate feeder (42);
The output of the feed pipe for mortar (30) of described pre-de slime flotation mechanism (A) is connected with the feeding pipe of microvesicle static module flotation mechanism (B).
2. pre-desliming microvesicle static module floatation system according to claim 1, it is characterized in that: described self-interference elasticity rectification desliming unit (10) is circular symmetrical structure, comprise and enter feed bin (11) along the ore pulp connected successively from top to bottom, material guiding tube (12), self-interference elasticity rectification desliming device (13), and underflow collecting bin (14); Described ore pulp enters feed bin (11) upper end and is provided with the first feeding mouth (110), and described ore pulp enters feed bin (11) limit wall is provided with the ore pulp be connected with material guiding tube (12) uniformly distributes discharging opening (111).
3. pre-desliming microvesicle static module floatation system according to claim 2, it is characterized in that: described self-interference elasticity rectification desliming device (13) is set to multiple and the ore pulp that distributes symmetrically ringwise enters feed bin (11) below, described self-interference elasticity rectification desliming device (13) comprises the pan feeding valve (130) of the adjustment aperture be connected with material guiding tube (12), and is connected with pan feeding valve (130) and is provided with the inclination casing (131) of the first underflow opening (1311) and overfall (1312).
4. pre-desliming microvesicle static module floatation system according to claim 3, it is characterized in that: be installed with in described inclination casing (131) and be positioned at the split-flow baffles (132) of pan feeding valve (130) lower end near cabinet exterior, near the drainage dividing plate (133) of cabinet wall, be positioned at the elasticity tipping tube fairing (134) between drainage dividing plate (133) and cabinet wall; Described split-flow baffles (132) and drainage dividing plate (133) form and are divided into the position of the first up-narrow and down-wide material drainage channel (135) and the second material drainage channel (136) wide at the top and narrow at the bottom to coordinate the flow of slurry introduced from pan feeding valve (130); Described second material drainage channel (136) forms self-interference mixed zone (137) by convection current interference in the bottom of inclination casing (131) to the first material drainage channel (135);
Described elasticity tipping tube rectification mechanism (134) is parallel with drainage dividing plate (133), and is set to oblique lattice shape rectification hole (1341) bundle that the cross section surrounded by hang plate (1340) is parallelogram; The edge that described elasticity inclination tube bank rectification mechanism (134) connects inclination casing (131) and drainage dividing plate (133) is set to the different automatic fine tunings spring (1342) be highly convenient to according to feed thickness and feeding;
Described overfall (1312) to be positioned on cabinet wall and higher than the upper surface of elasticity tipping tube fairing (134), described overfall (1312) place is also connected with the derivation groove (138) guiding the interior ore pulp of elasticity tipping tube fairing (134) to overflow, and described derivation groove (138) is set to the cell body identical with the casing that tilts (131) width; Controlled the opening and closing of the first underflow opening (1311) by underflow valve (1310) described self-interference mixed zone (137).
5. the pre-desliming microvesicle static module floatation system according to Claims 2 or 3 or 4, it is characterized in that: described underflow collecting bin (14) is located at the centre position of interference elasticity rectification desliming device (13) separately, and described underflow collecting bin (14) limit wall is provided with the second feeding mouth (141) for connecting self-interference elasticity rectification desliming device (13) first underflow opening (1311) uniformly; Described underflow collecting bin (14) lower end is provided with the second underflow opening (142); The entrance of described pump for mortar transmission (20) is connected with second underflow opening (142) of underflow collecting bin (14), and the outlet of described pump for mortar transmission (20) is connected with feed pipe for mortar (30) one end.
6. pre-desliming microvesicle static module floatation system according to claim 1, it is characterized in that: in described microvesicle static module flotation mechanism (B), the middle and upper part of arbitrary cell body (40) is also provided with the cowling panel (43) for steady flow condition fluidised form, described cowling panel (43) is set to the space bar being evenly distributed with ramp way, and described cowling panel (43) forms the single channel be convenient to mineralized particles and floated.
7. pre-desliming microvesicle static module floatation system according to claim 1, is characterized in that: described cell body (40) is set to 2 ~ 6 grooves; Flotation cells (41) in arbitrary described cell body (40) is set to 4 ~ 10 groups, and wherein, the flotation cells (41) in last cell body is than many 2 groups or 4 groups of flotation cells (41) in cell body above; The mine tailing of arbitrary described cell body (40) is entered the downside of next cell body (40) cowling panel (43) by " Z " font circulation port, until finally discharged by mine tailing mouth.
8. pre-desliming microvesicle static module floatation system according to claim 1, it is characterized in that: described swirling jet unit (50) comprises buffer barrel (500), the delivery pump (501) be connected with buffer barrel (500), nozzle (502) and is connected delivery pump (501) and the pipeline of nozzle (502), described pipeline is also connected with bubble generator (503); Described bubble generator (503) comprises Pressure gauge, flow takes into account compressed air, and the formation that arranges of described bubble generator (503) makes air be pumped to the cooperation of nozzle (502) through delivery pump (501) with buffer barrel (500) interior material;
Be provided with the guide vane (5020) of the gassiness ore pulp formation eddy flow that proportioning pump is sent in described nozzle (502), described guide vane (5020) is set to 4 ~ 6; Described pipeline is set to trunnion, and described nozzle (50) and pipe joint are designed with the gate (504) be convenient to flotation unit and overhauled.
9. pre-desliming microvesicle static module floatation system according to claim 1, is characterized in that: described radome fairing (51) is set to segment shape; Described radome fairing (51) be arranged so that gassiness ore pulp is penetrated at radome fairing (51) upper and change flow direction after swirling jet unit (50) ejection, form two " V " flow field.
10. pre-desliming microvesicle static module floatation system according to claim 1, is characterized in that: the spray end of described spray equipment (60) is set to " overhead kick " shape; Described " overhead kick " shape direction is located in the plane perpendicular to feeding pipe, and meanwhile, the setting in " overhead kick " shape direction is beneficial to froth bed and moves to concentrate feeder (42) direction; Float skimming device (61) is also provided with along between the concentrate feeder (42) and described spray equipment (60) of feeding pipe directional spreding flotation cells (41) both sides in cell body (40).
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| CN110198790A (en) * | 2016-10-28 | 2019-09-03 | 比奥-吉尔环境有限公司 | Liquid flow distribution system |
| CN110935205A (en) * | 2019-12-13 | 2020-03-31 | 安徽理工大学 | Multi-stage sedimentation rake-free concentration device comprising laminar flow-guiding sedimentation sieve |
| CN113492062A (en) * | 2021-06-28 | 2021-10-12 | 洛阳栾川钼业集团股份有限公司 | Desliming method for high-argillization high-talc ore |
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