CN1012882B - Fine separator for enriching minerals - Google Patents

Abstract

The present invention relates to a refiner using a gravity method to dressing ore. The present invention comprises a dressing mechanism (1), a shaft (9) and a transmission mechanism (2), wherein the shaft (9) is eccentrically arranged on a wheel hub (5) of a base (3); the transmission mechanism makes the dressing mechanism (1) move along the circumference of which the radius is equal to eccentric distance. The casing (14) of the dressing mechanism is in a cylindrical shape and is connected with the base (3) through a bit line (13). Conical separating disks (16) are arranged at an upper layer and a lower layer in the casing; by-pass ports (22) are arranged on the separating disks, and the hole diameters of the separating disks at the upper layer are smaller than the hole diameters of the separating disks at the lower layer.

Description

Fine separator for enriching minerals

The invention belongs to mining industry, specifically, belong to the refiner of using with the gravitational method heads.

The refiner that is proposed can be successfully used to handle the sample ore that disperses the geology of mineral deposit probing, the concentrate of selected syringe and dredger, exploitation gold, platinum, other metal and the mineral of density more than 5 gram/cubic centimetres on a small scale.

When finishing above-mentioned work, must guarantee to be reclaimed (concentrating) rate, contain the raw material of a large amount of heavy mineral,, and selectedly contain a large amount of thin golden raw materials as pyrite, granite, magnetic iron ore comprising processing by the height of enrichment material.Also must guarantee the mechanization of whole raw material processing procedures simultaneously and reduce the amount of labour.

Known rotary separator is applicable to the processing mineral now, and is particularly golden, referring to SU, and A, 700975; 809692, its operation principle is enriching heavy metal or mineral, and it has the base of a belt wheel hub, enrichment mechanism and transmission mechanism of a band dumping pit.Transmission mechanism comprises a Hollow Transmission Shafts, and this is installed on the interior bearing of base wheel hub, enrichment mechanism shaft of eccentric installation on the inherent bearing of hollow shaft, and this equals the circular motion of eccentric throw along a radius.Enrichment mechanism is a cup-shaped, on its inner surface ditch is arranged.

But this separator is when the high raw material of the thin gold of enrichment or laminar gold content, and its metal enrichment factor is not high.Thereby must carry out the selected once more of product, this has just increased the amount of labour and raw material processing time.When the material of enrichment contains a large amount of heavy concentrate, because centrifugal action makes the groove of cup stop up the condition of this enrichment process that just deteriorated significantly rapidly.

Task of the present invention is the refiner that a kind of heads of initiative are used, and the version of its enrichment mechanism can improve the efficient of metal concentration process, and reduces the proportion of hand labour.

The method that solves this task is: the refiner of using at heads includes the base of a belt wheel hub, enrichment mechanism and transmission mechanism of a band dumping pit, transmission mechanism has a Hollow Transmission Shafts, this is contained on the interior bearing of base wheel hub, enrichment mechanism shaft of eccentric on this inherent bearing, this root axle equals the circular motion of eccentric throw along radius.According to the present invention, enrichment mechanism comprises the cylindrical shell of a band taper separator plate, and which floor the taper separator plate has up and down, and by-pass prot is arranged, and coils the by-pass prot area that lower floor coils from the upper strata and reduces gradually, has flexible bowden cable to be connected between cylinder and the base.

Owing to adopt cylinder shell and installing within it several layers of taper separator plate up and down, just may reduce its volume to another dish in mobile from a dish, thereby improve enrichment condition at the raw material of sorting.The taper separator plate can be finished selected (the raising enrichment) that concentrates the ore deposit in an equipment, make it reach essential metal enrichment, because the material of enrichment concentrates on try to get to the heart of a matter, and spoil is discharged from web with water.On the dish by-pass prot area reduce make material after enrichment in the upper strata dish, just can enter lower floor to coil.

Adopt flexible bowden cable to be connected between cylindrical shell and base and can make enrichment mechanism when equaling the circular motion of eccentric throw along radius, produce percussion movement, enrichment material is moved along dish, for best condition has been created in each separation of coiling interior material.

Be preferably under lower floor's separator plate, an additional dish is installed on enrichment mechanism housing, be used for selected concentrate, this just can make the work of the selected and separator plate of concentrate carry out simultaneously.But taper separator plate staged is installed.Can improve the separation and the recovery degree of concentrated productivity ratio, valuable composition like this, because all send into more smart mineral in the dish of each lower floor, spoil then is discharged to housing bottom from each dish, and housing bottom promptly becomes abandoned mine sand gatherer.

The housing bottom middle body can concave, and forms a chamber that holds transmission device.Can dwindle the size of refiner like this, can also reduce the overhung load on enrichment mechanism shaft and the bearing, thereby improve the global reliability and the life-span of refiner.

Being preferably in and doing annular ditch and perforate on the dish, staggers in the hole of per pass ditch and the hole of adjacent ditch.Can make metallic particles reach the middle body of dish like this by the hole, and in the superincumbent ditch of unlikely delay.

In refiner embodiment, above additional disk, a mixing chamber was installed on the end of cylindrical shell, mixing chamber has individual relief hole, and is communicated with the housing inner chamber by the dumping pit of housing and the antipriming pipe in the housing.The liquid ore pulp that this version of refiner is gathered lower floor separator plate top flows into mixing chamber, thereby makes enrichment material obtain best dilution before entering additional disk.

Therefore, the refiner that this heads that we propose are used is compared with existing similar machines, aspect the processing geological drilling sample ore higher productivity ratio is being arranged, and has not reduced water consumption owing to the cleaning sludge need not add water, and energy consumption is less, and weight is also lighter.Because size is little, in drilling project, can be contained in the rig side, and can finishes following work: dissociate, screening, the enrichment of thickness grain, concentrate is selected and rinsing.

The present invention is further illustrated below by the embodiment of fine separator for enriching minerals and referring to accompanying drawing.

Fig. 1 is a refiner schematic diagram of the present invention, and conical bottom is arranged.

Fig. 2 is the conical disc that is equipped with on the inner walls shown in Figure 1.

Fig. 3 is the conical disc that is equipped with on the housing sidewall shown in Figure 1.

Fig. 4 is the conical disc that housing middle body shown in Figure 1 is equipped with.

Fig. 5 is the vertical view that has the refiner of broken section among Fig. 1.

Fig. 6 is the refiner additional disk.

Fig. 7 is the vertical view of Fig. 6.

The refiner that heads are used has the 1(Fig. 1 of enrichment mechanism) and a transmission mechanism 2, transmission mechanism is installed on the base 3.Wheel hub 5 is installed on the base 3 by pillar 4, and the Hollow Transmission Shafts 7 of transmission mechanism 2 is installed on the hub inner bearing 6.Eccentric installation shaft 9 on the bearing 8 in Hollow Transmission Shafts 7, enrichment mechanism 1 promptly is installed on the axle 9.

Transmission mechanism 2 comprises motor 10, and its output shaft is connected with the belt pulley 12 of Hollow Transmission Shafts 7 by decelerator or belt drive unit 11, as shown in Figure 1.Because the axle 9 of enrichment mechanism is with respect to axle 7 eccentric installations, so enrichment mechanism equals the circular motion (Fig. 1～4) of eccentric distance e along radius.

For avoiding rotation, enrichment mechanism 1 is connected with base 3 by backguy 13, and backguy can be with the flexible board that roller is housed in spring, cable wire, the groove or other known devices.So just make enrichment mechanism when circumference moves, can carry out interrupted bump, for material is created good condition by density separation.

There is a cylindrical shell 14 in enrichment mechanism 1, and one or several dumping pit 15 is arranged on the housing, also has the taper separator plate 16 that divides upper and lower layer to install in the housing, and the dish on upper strata is bigger than the dish diameter of lower floor.

Cylindrical shell 14 has the end 17, and the middle body 18 at the end is inwardly recessed, shown in Fig. 1～4.The end 17, can do tapered, can form central recessed shape, as shown in Figure 1.The various embodiment of the end middle body 18 shown in Fig. 1～4 all can form chamber 19, in order to hold transmission mechanism 2, can make refiner compact conformation, reliable operation like this.The working portion of housing 14 is an annular, and dish 16 is seen as endless belt-shaped from plane, as shown in Figure 5.

But taper separator plate 16 stageds are installed on cylindrical shell 14 sidewalls, as shown in Figure 3, also can be installed on the middle body 18 of protrusion, shown in Fig. 1,2,4.

Because of the refiner that is proposed is gravity type and percussion movement is arranged along circular motion the time, so spoil and water flow out from coiling 16 edge together, fall at the end 17 of housing 14, and discharge by the dumping pit at the end 15, enter terminal bay 21 through selected dish 20.

The separator plate 16 of middle body has by-pass prot 22, the Kong Yaoxiao of the boring ratio upper strata dish of lower floor's dish, i.e. S＞S ₁, wherein S is the area in the hole 22 of upper strata dish 16, S ₁Area for the hole 22 of lower floor dish 16.

Additional disk 23 that is used for selected concentrate is contained in down the by-pass prot 22 times of separator plate 16, the bottom 17(that housing 14 is led in by-pass prot 22 for example, shown in Fig. 2,3), can reach the bottom 17 of housing by short tube through the dumping pit 15 of housing 14.Additional disk is equipped with terminal bay 21 23 times.Terminal bay 21 usefulness support arms 24 are installed on the housing 14.

Backguy 13 directly is connected housing 14(Fig. 4 of enrichment mechanism 1) or coil on 21, shown in Fig. 1～3.

Each dish 16,20,23(Fig. 6) on make annular ditch 25 and hole 26(Fig. 7), the hole 26 in the ditch is staggered with the hole in the adjacent ditch, therefore, drop on the dish metallic particles the impact effect lower edge ditch 25 of dish move and by hole 26 to the dish central mobile.

In order to dilute by coiling the by-pass prot 22(Fig. 2,3 on 16) or the end 17 of housing 14 on dumping pit 15 material of discharging, one or two mixing chamber 27 is installed in the refiner.Mixing chamber 27 is fixed at the end 17 of housing 14, is positioned at the top of dish 20, as shown in Figure 2, or is positioned at dish 20 and dish 23 tops, as shown in Figure 3.

Mixing chamber 27 has a relief hole 28, and is communicated with housing 14 inner chambers by antipriming pipe 29, manages 29 and is installed in and within housing at the end 17 of housing 14.

Sieve 30(Fig. 1,2,5 is housed above upper strata separator plate 16), pending raw material is delivered on the sieve.

On the sieve 30 annular plate 31 is installed,, can improves dissociation effect like this so that on sieve, keep the coarse fraction material for a long time here.Coarse material from sieve discharge after, be discharged to housing 14 outsides by groove 32.

Refiner operation principle of the present invention is as follows:

The rotation of motor is delivered to hollow shaft 7 by belt gear 11, belt pulley 12, eccentric installation shaft 9 in the hollow shaft 7, and axle 9 supporting enrichment mechanisms 1, enrichment mechanism 1 equals the circular motion of eccentric throw along radius.

The 1 usefulness backguy 13 of enrichment mechanism is fixing, avoids rotating, and produce percussion movement along circular motion the time.

Pending ore pulp shape material is delivered on the sieve 30, and ore pulp dissociates under the effect of impact of enrichment mechanism 1, and granularity is discharged by groove 32 greater than the particle of sieve aperture, and fine grained then falls into upper strata taper separator plate 16.

Material is by Gravity Separation in the dish 16.Light grains is discharged from coiling 16 edges, falls, because lower floor's separator plate becomes stairstepping to install at the end 17 of housing.Under the effect of impact of housing 14 shift to dumping pit 15 or groove 32 at the spoil that gathers at the end 17, discharge outside the housing.If at 15 times installation mixing chambers 27 of dumping pit, as shown in Figure 2, then spoil falls into selected dish 20 in the water effect of carrying through antipriming pipe 29, further dissociate at this, the enrichment material that falls into this dish with spoil concentrates on the middle body of dish 20, because the effect in the hole 26 in ditch 25 and the ditch, spoil flows to terminal bay 21 with water from web, and discharges thus.

The heavy particle of enrichment material moves at the effect lower edge of enrichment mechanism 1 percussion movement ditch 25 in the upper strata separator plate 16, and move on to dish 16 middle body by the hole in the ditch 26, fall on lower floor's dish 16 by by-pass prot 22 then, on this dish, still further dissociate as stated above.Enrichment material focuses on the dish middle body in 25 motions of lower floor's separator plate 16 upper edge ditches by hole 26, enters mixing chamber 27 by dumping pit 22 again, enters additional disk 23 thus again.

On the additional disk 23 with the same on 16 at dish, the material of enrichment is concentrated at middle body, and water and fine grain spoil flow into terminal bay 21 from coiling 23 edges, dish 21 is positioned at and coils 23 belows.Each dish 20 or 23 pine is enclosed within on the stem stem 33 on the whole choosing dish 21, shown in Fig. 2,3,6.Desirable so where necessary lower wall 20 or 23, the enrichment material that gathers on the taking-up dish.

Claims (6)

1, the refiner that a kind of heads are used, it has the base (3) of a belt wheel hub (5), the enrichment mechanism (1) and a transmission mechanism (2) of a band dumping pit, transmission mechanism comprises a Hollow Transmission Shafts (7) on the bearing (6) in the wheel hub (5) that is installed in base, the inherent bearing of hollow shaft (8) is gone up the eccentric enrichment mechanism shaft (9) of installing, enrichment mechanism equals the circular motion of eccentric throw along radius, it is characterized by, there is a cylindrical shell (14) in enrichment mechanism (1), taper separator plate (16) is arranged in the housing, separator plate divides levels to install, by-pass prot (22) is arranged on the dish, the size in lower floor dish hole is littler than the size in dish hole, upper strata, and cylindrical shell (14) is connected with base with backguy (13).

2, according to the described refiner of claim 1, it is characterized by,, on the housing (14) of enrichment mechanism (1), additional disk (23) is installed in lower floor's separator plate (16) below.

3, according to the described refiner of claim 1, it is characterized by, taper separator plate (16) becomes stairstepping to be installed in the housing (14).

4, according to the refiner described in the claim 1 to 3, it is characterized by, the middle body (18) at the end (17) of housing (14) concaves, and forms chamber (19), to hold transmission mechanism.

5, according to the refiner described in the claim 1 to 3, it is characterized by, annular ditch (25) is arranged on the separator plate (16), in the ditch porose (26), the hole of adjacent ditch is staggered.

6, according to the described refiner of claim 2, it is characterized by, in additional disk (23) top, mixing chamber (27) is installed on (17) at the bottom of the cylindrical shell, mixing chamber has tap (28), and is communicated with the housing inner chamber by the antipriming pipe (29) in dumping pit (15) and the housing (14).

Images