CN105689157A - Swinging-stirring flotation equipment with self-slurry-mixing function - Google Patents

Abstract

The invention relates to the field of coal slurry mixing and flotation treatment, and specifically relates to swinging-stirring flotation equipment with a self-slurry-mixing function. The swinging-stirring flotation equipment disclosed by the invention at least comprises a flotation cell, wherein a micro-bubble generation bed is arranged in the flotation cell; the micro-bubble generation bed comprises micro-bubble tubes; and a connection arm is arranged at each of the two ends of each micro-bubble tube to fix the co-end part of the micro-bubble tube. The equipment further comprises a gas pipeline, wherein the gas pipeline is communicated with the tube cavity of each micro-bubble tube through a prearranged gas channel in the corresponding connection arm; and micro-bubble generation holes used for ejecting a gas are densely distributed in the tube wall of each micro-bubble tube. The equipment further comprises power arms, wherein the two power arms are provided, and symmetrically arranged at the two sides of the micro-bubble generation bed; and a stirring baffle extends from the bottommost end of each micro-bubble tube, and the surface of each stirring baffle is vertical to the swinging direction of the micro-bubble generation bed. The equipment disclosed by the invention has the advantages of being great in micro-bubble flotation effect, easier in bubble mineralization, free from flotation 'dead areas' in the flotation cell, and more stable in foam layer; and the working efficiency and the flotation effect can both be effectively ensured.

Description

A kind of have wave stirring-type floatation equipment from what size mixing function

Technical field

The present invention relates to coal slime to size mixing flotation process field, be specifically related to a kind of have from function of sizing mixing wave stirring-type floatation equipment。

Background technology

Floatation is most important interface method for separating, is generally used for the sorting of-0.5mm coal slime, especially the only effective method for separating of-0.1mm coal slime。Flotation device of a great variety, difference is mainly manifested in the aspect such as airing form, inflating and stirring device structure。The classification method that application is maximum at present, is that flotation device is divided into mechanical agitation type and the big class of mechanical stirring-type two by the difference by inflation and alr mode。Agitation impeller flotator, can refer to the name that Chinese patent notification number is " CN201711220U " and is called described in " agitation impeller flotator ", is that the stirring utilizing mechanical agitator is to complete suction and the cutting procedure of bubble。Churned mechanically flotation mode uses the most remote, ore dressing to coal separation have the history of last 100 years, and it can provide turbulent flow environment for flotation cell, but shortcoming is in that energy consumption is big and maintenance capacity is big。Mechanical agitation type flotation machine, also known as pneumatic flotation cell, has and bypasses air through micropore and force the air pressing type structure filled the air, and the name being " CN2671690 " with reference to Chinese patent notification number is called described in " column type floatation machine "；Useful jetstream whirl means produce forced vortex cutting air and the injecting type making air precipitate out again after dissolving, such as FJC (A) series flotation device, XPM jetstream whirl formula etc.。On-mechanical agitation type flotation machine, owing to without rabbling mechanism, therefore adopting pump to provide energy for ore pulp, by the jet of ore pulp, collision dispersion, draws enough air, and shortcoming is to need supporting pump, and energy consumption is big。It addition, on-mechanical agitation type flotation machine is owing to ensure enough ore deposit amount flows and inspiration capacity, flotation cell flow field usually excessive turbulence, cause that the granule of mineralising comes off in floating-upward process, thus affecting flotation effect。How to seek the novel floatation equipment that a kind of structure is more reasonable and practical, so that it is possessing more low energy consumption, more low maintenance and more while low production cost, can synchronize possess better bubble mineralization and flotation effect, for the technical barrier that this area is urgently to be resolved hurrily in recent years。

Summary of the invention

It is an object of the invention to overcome above-mentioned the deficiencies in the prior art, it is provided that a kind of simple in construction and reasonably have and wave stirring-type floatation equipment from what size mixing function, with the efficient and controlled efficient flotation separation demand realizing ore pulp。It possesses microfoam flotation excellent, bubble mineralization is easier to, flotation cell without the more stable advantage of flotation " dead band " and froth bed, work efficiency and flotation effect all can be effectively ensured。

For achieving the above object, present invention employs techniques below scheme:

A kind of have wave stirring-type floatation equipment from what size mixing function, at least include flotation cell, it is characterized in that: in flotation cell, be arranged for carrying out the microvesicle generation bed of floating operation, described microvesicle generation bed includes the microvesicle pipe of more than three and arrangement alongside one another, and the two ends of microvesicle pipe are respectively arranged the linking arm same end with fixing each microvesicle pipe；This equipment also includes for introducing compressed-air actuated gas piping, and gas piping connects each microvesicle pipe tube chamber via the air flue preset in linking arm, and hole occurs the microvesicle that the tube wall of each microvesicle pipe gathers for spraying gas；This equipment also includes the power arm that its bed surface direction of microvesicle generation edge of bed can be made to produce pendulum-type action, and power arm is the both sides place being arranged in microvesicle generation bed of two and symmetry；It is extended with mixing baffle to the bottom land of flotation cell, the swaying direction of the vertical microvesicle generation bed in plate face of described mixing baffle at the lowermost end bus place of the microvesicle pipe constituting microvesicle generation bed。

Described microvesicle generation bed profile is uniformly arranged the arc surfaced frame structure formed in by microvesicle pipe interval；With the vertical guide through middle microvesicle pipe axis for the plane of symmetry, with this plane of symmetry, face is arranged symmetrically with the sidepiece microvesicle Guan Jun of centrally located microvesicle pipe both sides；An end portion of the centrally located microvesicle pipe of gas piping, the other end at middle microvesicle pipe is arranged for introducing clear water to perform the detergent line of washing and cleaning operation。

Described microvesicle tube axis direction parallel flotation groove flute length direction；Power arm drives with the hydraulic transmission assembly being arranged in outside flotation cell groove end；One section of shaft level of power arm extends and fixed thereto to the end of middle microvesicle pipe, and another section of shaft of power arm then tilts upward extension and also and fix between the kinetic swing moved end of hydraulic transmission assembly。

This equipment also includes the driving rabbling mechanism for performing the stirring operation of ore pulp pan feeding, and this driving rabbling mechanism is suspended at place above flotation cell notch；Drive rabbling mechanism discharging opening point to microvesicle generation bed bed surface place, and and between the active path of microvesicle generation bed space dodge layout；Described driving rabbling mechanism includes the shell body of downward opening tubbiness, the rotating shaft of coaxially arranged axis vertical in shell body, and the hypomere axle body place coaxial sleeve of rotating shaft is provided with diversion mixing impeller, the coaxial fixed drive turbine in epimere place of rotating shaft；Running through at the periphery wall place of shell body and be provided with the main pipeline for pan feeding, the impeller blade place driving turbine is pointed in the discharging direction of described main pipeline；This equipment also includes the frequency conversion motor for process auxiliary drive axis of rotation。

The opening part of described shell body presents the bell mouth shape structure that bore extends out gradually；Diversion mixing impeller is two groups and sequentially coaxially arranges along shaft axis direction；The bore of two groups of diversion mixing impellers from top to bottom increases successively。

Described driving rabbling mechanism is two groups of laid out in parallel, and two groups drive rabbling mechanism to share a main pipeline and the flute length direction of the laid out in parallel direction parallel flotation groove of these two groups driving rabbling mechanisms；Driving rabbling mechanism for one group of agitating unit with above-mentioned two groups, described agitating unit is two groups and sequentially arranges along flotation cell flute length direction；It is provided with the circulation ore pulp pipe for lead-out groove prodelta clay material at the flotation cell bottom land place pointed by the discharging opening of first group of agitating unit, circulation ore pulp pipe place arranges the circulating pump for providing tubular body buildup to pump power, the port of export of circulation ore pulp pipe connects the main line arrival end of second group of agitating unit, and the flotation cell groove end place being positioned at second group of agitating unit place arranges the tailing tank for drawing this place's buildup。

Described tailing tank includes mine tailing overflow launder, the cell wall of the side, relatively close agitating unit place of mine tailing overflow launder forms liquid level baffle plate and this height of baffle plate higher than the ore pulp froth bed maximum height in flotation cell, the opposite side cell wall of mine tailing overflow launder then forms current stabilization baffle plate and this height of baffle plate lower than the mineral syrup liquid minimum altitude in flotation cell, and the bottom land place of mine tailing overflow launder offers the plup inlet from bottom to top poured in for buildup；Be provided with, in the laminating of plate face, current stabilization baffle plate place, the controllable register that vertical motion can be done along the direction, plate face of current stabilization baffle plate, downflow weir that buildup collectively forms via current stabilization baffle plate and controllable register and be expelled to external equipment。

The feed end of main pipeline is dichotomous structure, and the connection of one entrance point is for double; two sleeve fluidic modules of jet floating agent, and another entrance point connection floatation feed has pressure surge tank；Described floatation feed has pressure surge tank to include the tank body of cartridge seal, the compressed air hose being provided with connection external air source of axis vertical in tank body, what the periphery wall place being positioned at body of compressed air hose was forked is outward extended with molten edema caused by disorder of QI arm, and molten edema caused by disorder of QI arm gathers venthole；The bottom end of tank body arranges that discharge nozzle is to connect above-mentioned main pipeline, arranges the kinetic pump as power in this discharge nozzle；What the top end face place of tank body and compressed air hose space were dodged is provided with floatation feed hole, the floatation feed pipe for feed slurry outside the connection of described floatation feed hole；What fitted in the face, nose end place being positioned at tank inner chamber in floatation feed hole is provided with valve plate, and valve plate is fixed on above-mentioned nose end place with extension spring；Floatation feed has pressure surge tank place to there also is provided for monitoring the pressure transducer of pressure in tank body。

Cell wall place, both sides along the length direction of flotation cell is provided with bubble overflow launder, and bubble overflow launder is arranged in the lateral wall place of flotation cell cell wall and is constituted overflow wall with the lateral wall of above-mentioned cell wall；This equipment includes circulating bubble assembly of scraping, and circulating bubble assembly of scraping is conveyer belt columnar structure, and the closed loop of composition conveyer belt belt body is scraped the outer surface layout of bubble band and scraped bubble plate, and the vertical closed loop in plate face scraping bubble plate scrapes the direction of action steeping band；This equipment also includes clear water spray assemblies, clear water spray assemblies includes secondary enrichment spray head and froth breaking spray head, the water jet of secondary enrichment spray head is positioned at the circulating top place of close bubble overflow launder side scraping bubble assembly and water spraying direction points to closed loop and scrapes bubble band belt body, and the water jet of froth breaking spray head is positioned at the surface place of bubble overflow launder and the bottom land of water spraying direction sensing bubble overflow launder。

Horizontally disposed in the cell body of described bubble overflow launder have at least one of which froth breaking sieve plate for froth breaking。

The beneficial effects of the present invention is:

1), the present invention is on the basis based on tradition flotation slot type floatation equipment, using unique microvesicle generation bed as microvesicle generation matrix, being continuously generated of microvesicle is coordinated by the pendulum model action of microvesicle generation bed, both guaranteed that the flow field of flotation cell was in a suitable turbulent condition, thus being conducive to the floating of mineral laden bubble, ensure that again the granule of mineralising will not come off from bubble, to increase flotation efficiency。It is different from the separation trough structure of tradition flotation cell, the present invention is with single groove structure, by running through the microvesicle generation bed of whole flotation cell, so that the microvesicle of its generation can fill the air the diverse location of whole flotation cell with its pendulum-type action, it is truly realized the efficient flotation separation purpose without flotation " dead band "。Mixing baffle is arranged on the lower section of microvesicle pipe, thus constantly brushing against flotation cell bottom land place ore pulp with the wobbling action of microvesicle generation bed, to avoid flotation cell " desilting " situation, final further lifting flotation of ore pulp effect occur。

To sum up, the present invention only forces the floatation equipment dispersed different by purely mechanic revolution stirring and inflation from traditional, the present invention is based on the premise of energy-conservation and low maintenance capacity, with the structural design more simplified and more mild swing-bed action, thus realizing the bubble mineralization function of better effect and without the flotation cell flotation effect of flotation " dead band "。Practice have shown that, the flotation mode of the present invention possessed microfoam flotation effect more preferably, bubble mineralization be easier to, flotation cell without the more stable advantage of flotation " dead band " and froth bed, work efficiency and flotation effect all can be effectively ensured。

2), microvesicle generation bed, at least include microvesicle pipe and cambered surface channel-shaped framework structure that linking arm is constituted。Gas piping is positioned at a groove end of the cambered surface groove-like structure of microvesicle generation bed, to ensure pouring in of external compression gas in good time, and then guarantees that on microvesicle pipe, millimetre-sized microvesicle occurs hole constantly to give vent to anger。Detergent line is positioned at another groove end place of microvesicle generation bed, to clean a microvesicle generation bed in a period of time, it is to avoid hole or even linking arm and microvesicle pipe lumen obstruction occur above-mentioned microvesicle, to promote its functional reliability。

3), power arm, be only used as power transmission and passive tilting member herein, the actual hydraulic transmission assembly driving operation also should rely on outside realizes。During concrete operations, hydraulic transmission assembly relies on hydraulic power to give power arm with oscillatory forces, and it is passed to microvesicle generation bed by power arm。Due to the moment difference of junction point of junction point and the power arm opposing hydraulic transmission component of the relative microvesicle generation bed of power arm, microvesicle generation bed starts to produce pendular movement, and then coordinates the microvesicle production capacity of microvesicle pipe, finally realizes optimized flotation of ore pulp effect。

4), to drive stirring structure be one of them emphasis of the present invention, is the stirring mixed processes before entering flotation cell as ore pulp and exists。The present invention uses the driving turbine rotation in the produced power drive rotating shaft of ore pulp transport, and then drives diversion mixing impeller to produce fluid agitation action。In addition, rotating shaft is also connected with frequency conversion motor, and when ore pulp driving force deficiency, frequency conversion motor works, to guarantee that diversion mixing impeller rotates with certain speed all the time。The effect of the circumferential inner wall of shell body is by the ore pulp of horizontal movement, progressively guides into and moves both vertically, to reduce fluid in the process changing kinestate, and the loss of energy。The horn mouth design of shell body oral area, be conducive to ore pulp along shell body gush out time rapid dispersion, thus bubble can be produced wrap up effect by the microvesicle that produces of the more microvesicle generation bed place with underface while slowing down, and then promote its flotation efficiency。

5), how group drives rabbling mechanism and the layout organizing agitating unit more, improves the flotation effect of ore pulp。Namely at once the mode of buildup ore pulp is taken out in relatively conventional single flotation, and what the present invention was obvious doubles to improve the flotation utilization rate of ore pulp, it is clear that contribute to reducing flotation cost, and and then promotes the production interests of producer。

6), the layout of tailing tank be another emphasis of the present invention, by the unique texture of tailing tank so that the operating path of buildup is advanced in unique " several " shape。On the one hand, just blocked by the outermost liquid level baffle plate of mine tailing overflow launder at the concentrate of the ore pulp of flotation and bubble parcel in flotation cell, and be unlikely to unexpected inflow in tailing tank and discharged unintentionally。On the other hand, the useless ore pulp after recleaning is then via the plup inlet of mine tailing isopipe root, and climbs over current stabilization baffle plate and downflow weir that controllable register is collectively forming, and is discharged flotation cell reliably, and then vacates place for pouring in of follow-up new ore pulp in good time。The layout of controllable register, allow for the situation according to production scene different, mineral syrup liquid height in flotation cell certainly exists difference, as in flotation cell, mineral syrup liquid height is natively sufficiently high, can suitably raise controllable register, to avoid causing because of siphon effect having and flotation pulp accident overflow can going out above-mentioned downflow weir。Certainly, when mineral syrup liquid height is not high in flotation cell, the flushing effect of current stabilization baffle plate self according to original design, can be only relied on。

7), as the feed liquor channel of whole stirring system, the present invention provides the dilution function of floating agent with double; two sleeve fluidic modules, pressure surge tank is had to provide ore pulp and the compression preliminary mixed function of air with floatation feed, and then achieve preliminarily diluted and the bubble dissolving step in ore pulp of floating agent, provide good condition for follow-up microfoam flotation。

8), aeration quantity of the present invention big, flotation effect is good, foam thickness。Scrape to timely flotation froth be collected, provide good environment for follow-up floatation process, devise reciprocating float skimming device, to guarantee the uninterrupted continuously running of equipment。Meanwhile, in order to improve concentrate grade and provide facility for the transport of follow-up foam, it is provided with secondary enrichment spray head and froth breaking spray head at bubble overflow launder and flotation cell intersectional region, shares one group of detergent line。Consider the secondary enrichment of the present invention, namely when mineral laden bubble has arrived the notch of flotation cell, bubble is assembled in a large number, bubble rises floating speed to be reduced, bubble merging increases, and when in merger process, hydration shell breaks, the water of diarrhea can be taken away the difference that is clipped in froth bed hydrophobicity and adsorb more weak impurity particle。Secondary enrichment spray head carrys out spraying foam layer by the effect of drenching with rain, and can strengthen above-mentioned secondary enrichment。The active position of froth breaking spray head is at bubble overflow launder place, and purpose is contemplated to froth breaking；When the foam collected to enter underlying collection bucket, if froth breaking will diffuse out from collecting vessel not in time, additionally adopting kinetic pump transport from collecting vessel to flotation concentrate dehydration equipment, the existence of foam is obviously also unfavorable for actual shipment。Froth breaking baffle plate is also set up in bubble overflow launder。It was verified that the use of froth breaking baffle plate is higher than the efficiency of direct spraying foam by 40%, reason is that foam has flexibility, transmutability, and froth breaking baffle plate can improve spray impulsive force, forms secondary froth breaking effect, it is possible to farthest play the effect of froth breaking spray。

Accompanying drawing explanation

Fig. 1 is the sectional schematic diagram along flotation cell cross section of the present invention；

Fig. 2 is the front schematic view of the present invention；

Fig. 3 is the I part partial enlarged drawing of Fig. 1；

Fig. 4 is in Fig. 2 structure, the schematic top plan view of microvesicle generation bed；

Fig. 5 is the structural representation of mine tailing overflow launder；

Fig. 6 is the structural representation of double; two sleeve fluidic module；

Fig. 7 is the top view of Fig. 6。

Illustrate each structure as follows with the component names corresponding relation of the present invention:

A-flange connecting point

10-flotation cell 20-microvesicle generation bed

There is microvesicle pipe 21c-sidepiece microvesicle pipe in the middle of the 21b-of hole in 21-microvesicle pipe 21a-microvesicle

22-linking arm 23-power arm 24-mixing baffle

25-gas piping 26-detergent line

30-hydraulic transmission assembly 40-drives rabbling mechanism

41-shell body 42-drives turbine 43-frequency conversion motor 44-diversion mixing impeller

50-circulates ore pulp pipe 51-circulating pump 60-mine tailing overflow launder

61-liquid level baffle plate 62-current stabilization baffle plate 63-plup inlet 64-controllable register

The double; two sleeve fluidic module 80-floatation feed of 70-has pressure surge tank

81-tank body 82-compressed air hose 82a-molten edema caused by disorder of QI arm 83-discharge nozzle

83a-kinetic pump 84-valve plate 85-extension spring 86-pressure transducer

90-bubble overflow launder 91-froth breaking sieve plate

The circulating bubble assembly 101-that scrapes of 100-scrapes bubble plate

Bis-enrichment spray head 112-froth breaking spray heads of 110-clear water spray assemblies 111-

Detailed description of the invention

For ease of understanding, here in connection with Fig. 1-7, specific embodiments of the invention are made described further below:

The particular make-up part of the present invention, it is divided into several big module, including: flotation cell 10, floatation feed have pressure surge tank 80, double; two sleeve fluidic module 70, drive rabbling mechanism 40, microvesicle generation bed 20, circulating scraping to steep assembly 100, clear water spray assemblies 110 and tailing tank。It is been described by one by one below:

1, floatation feed has pressure surge tank

Its structure is as it is shown in figure 1, include the tank body 81 sealing tubular, plumbing arrangement compressed air hose 82 coaxial in tank body 81。The top air inlet connection external air source of compressed air hose 82, bottom air outlet section is then layered in other words conj.or perhaps with forked distribution and dendritic is provided with many molten edema caused by disorder of QI arm 82a, carries out gas discharge thereby through the venthole on molten edema caused by disorder of QI arm 82a。Tank body 81 inner chamber all constitutes the accommodation chamber for holding pan feeding ore pulp except the remainder arranging compressed air hose 82。Pan feeding ore pulp enters via the floatation feed pipe being arranged in tank body 81 end face place, and carries out elastic force regulation and control with the valve plate 84 of spring structure, to guarantee that in tank body 81, ore pulp height is within the scope of intended height all the time。By arranging pressure transducer 86, unit with good conditionsi can have floatation feed the control of pressure surge tank 80 internal pressure, includes automatic control system in。

The present invention has pressure surge tank 80 to replace existing floatation feed Buffer Pool by adopting floatation feed, it is achieved that bubble dissolving in ore pulp, provides good condition for follow-up microfoam flotation。Floatation feed is from the upper strata of Factory Building, when floatation feed is normal, is full of dereism during ore pulp merely with vertical floatation feed pipe, namely can ensure that the pressure in tank body 81。Junction design at floatation feed pipe with tank body 81 has the elastic self-closing valve that valve plate 84 and extension spring 85 are formed。And when floatation feed less (when including without floatation feed), elastic self-closing valve is automatically switched off, to ensure that the pressure in tank body 81 is in stationary value。Compression air, by introduced above by tank body 81 of compressed air hose 82, is provided with a plurality of molten edema caused by disorder of QI arm 82a, thus allowing the saturation of the air be dissolved in ore pulp in tank body 81。

2, double; two sleeve fluidic modules

Floatation feed has the ore pulp in pressure surge tank 80 by kinetic pump 83a, is delivered to driving rabbling mechanism 40 place above flotation cell 10 along pipeline。Meanwhile, floatation feed dilution water and medicament then disperse mix homogeneously by double; two sleeve fluidic modules 70, and by another group Pipeline transport to main pipeline。Specifically can refer to shown in Fig. 1 and Fig. 6-7。

Dilution water is shoot-off tangentially into the mixing chamber of power stream device, and secondary mjector is arranged on the top of power stream device, and the trunnion of secondary mjector is arranged in power stream device mixing chamber。

The working fluid of secondary mjector is compression air, and driving fluid is floating agent, and under the work of secondary mjector, medicament is dispersed into emulsion。Under the work of power stream device, air and medicament is divided, it is scattered to cut, air and medicament exist in ore pulp with the form of microvesicle and fine droplet respectively, provide good condition for follow-up flotation operation。

As it is shown in figure 1, the trunnion Position Design of power stream device has flange connecting point a, during to facilitate pipeline abrasion and blocking, it is possible to quickly carry out upkeep operation。

3, rabbling mechanism is driven

The stirring structure of existing flotation device is divided into two big classes, and the rabbling mechanism of agitation impeller flotator is also known as stator-rotator system, and by motor-driven, rotating speed is fast, and energy consumption is big, and maintenance capacity is big, but aeration quantity is guaranteed, can provide turbulent flow environment for flotation cell。On-mechanical agitation type flotation machine, without rabbling mechanism, adopts pump to provide energy for ore pulp, by the jet of ore pulp, collision dispersion, draws enough air, and shortcoming is to need supporting pump, and energy consumption is big；Further, since to ensure enough ore deposit amount flows and inspiration capacity, flotation cell flow field excessive turbulence, cause that the granule of mineralising comes off in floating-upward process。

Design a kind of low energy consumption, flotation effect flotation device good, easy maximization is always up flotation device study hotspot。This patent uses the residual power of ore pulp transport, drives the driving rabbling mechanism operating of flotation cell 10 front portion。Driving rabbling mechanism 40 also to include frequency conversion motor 43, when ore pulp driving force deficiency, frequency conversion motor 43 works, to guarantee that rotating shaft 45 rotates with certain speed all the time。Rabbling mechanism is driven also to include driving turbine 42, upper strata diversion mixing impeller, lower floor's diversion mixing impeller and constituting the shell body 41 of stir chamber environment。With reference to, shown in Fig. 1-2, driving turbine 42 by the driving force of ore pulp, rotating shaft 45 and diversion mixing impeller 44 is driven to rotate。The inwall of diversion mixing impeller 44 and shell body 41 coordinates jointly, by the ore pulp of horizontal movement, can progressively guide into and move both vertically, to reduce fluid in the process changing kinestate, and the loss of energy。During concrete operations, diversion mixing impeller 44 can have three kinds of forms for use, including right angle diversion mixing impeller, inclination angle diversion mixing impeller and spiral stream guidance agitator arm, can change as required。Wherein, inclination angle diversion mixing impeller and spiral stream guidance agitator arm are in the process guiding fluid motion, it is also possible to portion of energy converts to driving energy, contributes to the rotation of rabbling mechanism。Medicament, ore pulp and bubble, under the effect of above-mentioned rabbling mechanism and shell body 41, are sufficiently mixed collision, it is achieved the mineralising of bubble, simultaneously for the carrying out of floatation process in flotation cell 10, it is provided that good flow field environment。

4, microvesicle generation bed

Existing flotation device cell body is separated into 4-6 groove more, why cell body is separated into independent several parts, and major reason is that every part needs to arrange an independent stirring structure。And the flotation cell 10 of the present invention is with reference to shown in Fig. 1-2 and Fig. 4, it is logical cell structure, that is to say that a centre does not have the cell body of dividing plate, such that it is able to adapt to Different Plane Factory Building layout very well。Run through whole flotation cell 10 and arrange microvesicle generation bed 20。Microvesicle generation bed 20 at least includes occurring the microvesicle pipe 21 of hole 21a, fixing each microvesicle pipe 21 with linking arm 22, the power arm 23 of end and to be positioned at the mixing baffle 24 below microvesicle pipe 21 with microvesicle。Wherein mixing baffle 24 profile is with reference to shown in Fig. 1, and for arc plate structure, and its plate length is isometric with microvesicle length of tube, and the center of curvature of arc is towards the swing ascent direction then pointing to corresponding microvesicle pipe 21。Microvesicle pipe 21 tube chamber connects gas piping 25, and gas occurs hole to form microvesicle by microvesicle, fills the air the diverse location of whole flotation cell 10, is truly realized without flotation " dead band "。Microvesicle pipe 21 tube chamber is also connected with detergent line 26, cleans once, it is to avoid microvesicle generation hole plug in a period of time。Mixing baffle 24 is used for avoiding flotation cell 10 " desilting " situation occur。Gas piping 25 and detergent line 26 can adopt flexible pipe to make, to ensure the reliable pendulum-type action of microvesicle generation bed 20。

During specific works of the present invention, microvesicle generation bed 20, under the effect of hydraulic transmission assembly 30, shakes along oblique upper。The shake frequency of microvesicle generation bed 20 is below 30 times, and the flow field to guarantee flotation cell 10 is in a suitable turbulent condition, not only improves the floating of mineral laden bubble, ensures that again the granule of mineralising will not come off from bubble。

5, circulating bubble assembly is scraped

Aeration quantity of the present invention is big, and flotation effect is good, scrapes to be collected by flotation froth timely, provides good environment for follow-up floatation process, devises circulating scraping and steeps assembly 100。As shown in Figures 1 and 3, circulating scrape bubble assembly 100 entirety present conveying band structure, by closed loop scrape bubble band and corresponding actuating unit form, closed loop scrape bubble band outer surface then arrange scrape bubble plate 101。Whole circulating bubble assembly 100 of scraping designs above flotation cell 10 groove face, and full groove face uninterruptedly scrapes bubble。

6, spray equipment and tailing tank

Aeration quantity of the present invention is big, flotation effect is good, foam thickness, in order to improve concentrate grade and provide facility for the transport of follow-up foam, it is provided with secondary enrichment spray head 111 and froth breaking spray head 112 at bubble overflow launder 90 and flotation cell 10 intersectional region, shares one group of clear water pipeline。When showing structure shown in Fig. 1 and Fig. 3, also set up the froth breaking sieve plate 91 of three layers froth breaking at bubble overflow launder 90 place constituting tailing tank。It was verified that the use of froth breaking sieve plate 91 is higher than the efficiency of direct spraying foam by 40%, reason is that foam has flexibility, transmutability, froth breaking sieve plate 91 can improve spray impulsive force, forms secondary froth breaking effect, it is possible to farthest plays the effect of above-mentioned froth breaking spray。

Simultaneously, for stablizing of whole flotation cell 10 liquid level and froth bed, devise the tailing tank of " several " type, mine tailing namely final buildup and can pass through " several " type tailing tank and discharge。The tailing tank of " several " type adopts three layers baffle plate general layout, namely liquid level baffle plate 61, current stabilization baffle plate 62 and can vertical to movable controllable register 64, with reference to shown in Fig. 1 and Fig. 6。Mine tailing moves upward from the bottom at flotation cell 10 rear portion along mine tailing overflow launder 60 bottom land plup inlet 63, climbs over current stabilization baffle plate 62 and controllable register 64, finally discharges from mine tailing mouth。

7, ore pulp blood circulation

Arranging ore pulp blood circulation in flotation device, this system is made up of two groups of agitating units, as in figure 2 it is shown, connect each other circulating ore pulp pipe 50 between two groups of agitating units, and provides ore pulp circulation power with circulating pump 51。By said structure, thus the coal slime of non-mineralising can be allowed to have the probability that more floats, thus promoting screening effect and the utilization rate of pan feeding ore pulp, and its flotation cost can be significantly reduced。During specific works, initial at this flotation device pan feeding, the mixed liquor of ore pulp and flotation agent is all delivered to the agitating unit of left section of Fig. 2, the ore pulp of the non-mineralising in agitating unit place of left section then forms preliminary buildup, and the agitating unit place of right section of Fig. 2 it is delivered to by the circulating pump bottom flotation cell 10, to carry out secondary flotation。

To sum up, the structure of the present invention and working mechanism integrate coal slime and size mixing and flotation function, it might even be possible to ban traditional floatation feed and size mixing link, and directly adopt the flotation integrated system of sizing mixing of the present invention。Without running up parts in its composition structure, maintenance capacity is low, and slime separation is effective。Using this flotation device can reduce the equipment investment of coal preparation plant's early stage, whole flotation operation is more energy-conservation than traditional floatation process and equipment, can while guaranteeing its work efficiency and flotation effect, and the reduction of production cost is also extremely obvious。

Claims (10)

1. one kind has and waves stirring-type floatation equipment from what size mixing function, at least include flotation cell (10), it is characterized in that: in flotation cell (10), be arranged for carrying out microvesicle generation bed (20) of floating operation, described microvesicle generation bed (20) includes the microvesicle pipe (21) of more than three and arrangement alongside one another, and the two ends of microvesicle pipe (21) are respectively arranged the linking arm (22) the same end with fixing each microvesicle pipe (21)；This equipment also includes for introducing compressed-air actuated gas piping, gas piping connects each microvesicle pipe (21) tube chamber via the air flue preset in linking arm (22), and hole (21a) occurs the microvesicle that the tube wall of each microvesicle pipe (21) gathers for spraying gas；This equipment also includes the power arm (23) that microvesicle generation bed (20) can be made along its bed surface direction to produce pendulum-type action, and power arm (23) is the both sides place being arranged in microvesicle generation bed (20) of two and symmetry；It is extended with mixing baffle (24) to the bottom land of flotation cell (10), the swaying direction in the plate face vertical microvesicle generation bed (20) of described mixing baffle (24) at the lowermost end bus place of the microvesicle pipe (21) constituting microvesicle generation bed (20)。

2. according to claim 1 a kind of have wave stirring-type floatation equipment from what size mixing function, it is characterised in that: described microvesicle generation bed (20) profile is uniformly arranged the arc surfaced frame structure formed in by microvesicle pipe (21) interval；With the vertical guide through middle microvesicle pipe (21b) axis for the plane of symmetry, all with this plane of symmetry, face is arranged symmetrically with sidepiece microvesicle pipe (21c) of centrally located microvesicle pipe (21b) both sides；An end portion of the centrally located microvesicle pipe (21b) of gas piping (25), the other end middle microvesicle pipe (21b) is arranged for introducing clear water to perform the detergent line (26) of washing and cleaning operation。

3. according to claim 2 a kind of have wave stirring-type floatation equipment from what size mixing function, it is characterised in that: described microvesicle pipe (21) axis direction parallel flotation groove (10) flute length direction；Power arm (23) drives with the hydraulic transmission assembly (30) being arranged in outside flotation cell (10) groove end；One section of shaft level of power arm (23) extends and fixed thereto to the end of middle microvesicle pipe (21), another section of shaft of power arm (23) then tilt upward extension and and the kinetic swing moved end of hydraulic transmission assembly (30) between fixing。

4. a kind of according to claim 1 or 2 or 3 has and waves stirring-type floatation equipment from function of sizing mixing, it is characterized in that: this equipment also includes the driving rabbling mechanism (40) for performing the stirring operation of ore pulp pan feeding, and this driving rabbling mechanism (40) is suspended at place above flotation cell (10) notch；Drive rabbling mechanism (40) discharging opening point to microvesicle generation bed (20) bed surface place, and and between the active path of microvesicle generation bed (20) space dodge layout；Described driving rabbling mechanism (40) includes the shell body (41) of downward opening tubbiness, the rotating shaft (45) of coaxially arranged axis vertical in shell body (41), the hypomere axle body place coaxial sleeve of rotating shaft (45) is provided with diversion mixing impeller (44), the coaxial fixed drive turbine (42) in epimere place of rotating shaft (45)；Running through at the periphery wall place of shell body (41) and be provided with the main pipeline for pan feeding, the impeller blade place driving turbine (42) is pointed in the discharging direction of described main pipeline；This equipment also includes the frequency conversion motor (43) rotated for process auxiliary drive rotating shaft (45)。

5. according to claim 4 a kind of have wave stirring-type floatation equipment from what size mixing function, it is characterised in that: the opening part of described shell body (41) presents the bell mouth shape structure that bore extends out gradually；Diversion mixing impeller (44) is two groups and sequentially coaxially arranges along rotating shaft (45) axis direction；The bore of two groups of diversion mixing impellers (44) from top to bottom increases successively。

6. according to claim 4 a kind of have wave stirring-type floatation equipment from what size mixing function, it is characterized in that: two groups that described driving rabbling mechanism (40) is laid out in parallel, two groups drive rabbling mechanism (40) to share a main pipeline and the flute length direction in laid out in parallel direction parallel flotation groove (10) of these two groups drivings rabbling mechanism (40)；Driving rabbling mechanism (40) for one group of agitating unit with above-mentioned two groups, described agitating unit is two groups and sequentially arranges along flotation cell (10) flute length direction；It is provided with the circulation ore pulp pipe (50) for lead-out groove prodelta clay material at flotation cell (10) the bottom land place pointed by the discharging opening of first group of agitating unit, circulation ore pulp pipe (50) place arranges the circulating pump (51) for providing tubular body buildup to pump power, the port of export of circulation ore pulp pipe (50) connects the main line arrival end of second group of agitating unit, and flotation cell (10) the groove end place being positioned at second group of agitating unit place arranges the tailing tank for drawing this place's buildup。

7. according to claim 6 a kind of have wave stirring-type floatation equipment from what size mixing function, it is characterized in that: described tailing tank includes mine tailing overflow launder (60), the cell wall of the side, relatively close agitating unit place of mine tailing overflow launder (60) forms liquid level baffle plate (61) and this height of baffle plate higher than the ore pulp froth bed maximum height in flotation cell (10), the opposite side cell wall of mine tailing overflow launder (60) then forms current stabilization baffle plate (62) and this height of baffle plate equal to the mineral syrup liquid minimum altitude in flotation cell (10), the bottom land place of mine tailing overflow launder (60) offers the plup inlet (63) from bottom to top poured in for buildup；Be provided with, in the laminating of plate face, current stabilization baffle plate (62) place, the controllable register (64) that vertical motion can be done along the direction, plate face of current stabilization baffle plate (62), downflow weir that buildup collectively forms via current stabilization baffle plate (62) and controllable register (64) and be expelled to external equipment。

8. a kind of according to claim 1 or 2 or 3 has and waves stirring-type floatation equipment from function of sizing mixing, it is characterized in that: the feed end of main pipeline is dichotomous structure, the connection of one entrance point is for double; two sleeve fluidic modules (70) of jet floating agent, and another entrance point connection floatation feed has pressure surge tank (80)；Described floatation feed has pressure surge tank (80) to include the tank body (81) of cartridge seal, the compressed air hose (82) being provided with connection external air source of the interior axis vertical of tank body (81), what the periphery wall place being positioned at body of compressed air hose (82) was forked is outward extended with molten edema caused by disorder of QI arm (82a), the upper venthole that gathers of molten edema caused by disorder of QI arm (82a)；The bottom end of tank body (81) arranges that discharge nozzle (83) is to connect above-mentioned main pipeline, arranges the kinetic pump (83a) as power in this discharge nozzle；What the top end face place of tank body (81) and compressed air hose (82) space were dodged is provided with floatation feed hole, the floatation feed pipe for feed slurry outside the connection of described floatation feed hole；What fitted in the face, nose end place being positioned at tank body (81) inner chamber in floatation feed hole is provided with valve plate (84), and valve plate (84) is fixed on above-mentioned nose end place with extension spring (85)；Floatation feed has pressure surge tank (80) place to there also is provided the pressure transducer (86) for monitoring tank body (81) interior pressure。

9. a kind of according to claim 1 or 2 or 3 has and waves stirring-type floatation equipment from function of sizing mixing, it is characterized in that: the cell wall place, both sides along the length direction of flotation cell (10) is provided with bubble overflow launder (90), bubble overflow launder (90) is arranged in the lateral wall place of flotation cell cell wall and is constituted overflow wall with the lateral wall of above-mentioned cell wall；This equipment includes circulating scraping and steeps assembly (100), circulating bubble assembly of scraping is conveyer belt columnar structure, the closed loop of composition conveyer belt belt body is scraped the outer surface layout of bubble band and is scraped bubble plate (101), scrapes the vertical closed loop in plate face steeping plate (101) and scrapes the direction of action of bubble band；This equipment also includes clear water spray assemblies (110), clear water spray assemblies (110) includes secondary enrichment spray head (111) and froth breaking spray head (112), the water jet of secondary enrichment spray head (111) is positioned at the circulating top place of close bubble overflow launder (90) side scraping bubble assembly (100) and water spraying direction points to closed loop and scrapes bubble band belt body, and the water jet of froth breaking spray head (111) is positioned at the surface place of bubble overflow launder (90) and the bottom land of water spraying direction sensing bubble overflow launder (90)。

10. according to claim 9 a kind of have wave stirring-type floatation equipment from what size mixing function, it is characterised in that: horizontally disposed in the cell body of described bubble overflow launder (90) have at least one of which froth breaking sieve plate (91) for froth breaking。