US1634101A - hachita - Google Patents

Description

H,634,RM

June 28 1927.

M. S. HACHITA PULSATING JIG 3 Shasta-Sheet 1 l Filed Nov. l5. 1925 IN VEN TOR.

A TTORNEYl June 2s. 1927.

' M. S. HACHITA PULSATING JIG Filed Nov. l5. 1923 3 Shasta-Sheet 2 IN V EN TOR.

A Y'TORNE Y/SJ June 28, ma www M. S. HACHITA PULSATING JIG Filed Nov; 1.5, 192s v s sheets-sheet 3` INVENTOR. wh@

Y Ik

A TTORNEY1 Y Patented June 28, i927.

A 'il MAXIMILIAN S. HACHITA, OF WILKES-BARRE, PENNSYLVANIA.

PULSATING JIG.

Application filed November 15, 1923. Serial No. 674,904.

My invention relates to pulsating jigs which are adapted to be employed in the treatment of coal, ore and the like for the purpose of separating the same in accord- 5 ance with the specific gravities of the different constituents of the mass treated.

An apparatus embodying my invention is particularly well adapted for the treatment of coal of the smaller' sizes, such as pea, buckwheat, rice and barley, for the purpose of eliminating therefrom refuse matter such as slate, stone and the like intermiXed therewith and which is of higher specific gravity than coal.

One method which is 4employed in the treatment of materials of the character mentioned to effect separation of the portions of different specific gravities is to cause the same to move forward over the bottom of a.`

pan or receptacle and simultaneously to cause an intermittent or impulse iiow 'of water upifrardly through openings 1n the p said bottom; but such practice has not` proved satisfactory in all cases, particularly in the case of small sizes of coal such as mentioned above, because of the lack of means for properly controlling the flow of the water through the said materials.

The principal object of the invention, therefore, is to provide means whereby different areas or portions of the material within a pan or receptacle being treated mayr be subjected to the action of separate columns of water which are fiowing upwardly with different forces; that is to say, with different speeds.

In the treatment of materials in the manner suggested by upwardly flowing water, it is desirable that the water be supplied in more or less frequent successive impuises and also that ther quantity supplied to different areas or regions may be dierent and varied in order that the proper suspension in the jigging medium (water) of the mae terial being treated may be properly controlled whereby stratification in accordance with the specific gravities of the different portions of the said material may be effected. it is, therefore, an object of the present 1nvention to provide means whereby ciiferent portions or regions of the material being treated may be subjected to forces within and by the jigging medium in such manner to effect the desired stratification and frfifi Other objects and advantages of the invention will be pointed out in the detailed description thereof which follows or will be apparent from such description.

in the accompanying drawings, forming a part of this specification, l have illustrated certain forms of apparatus embodying my invention, but it will be understood that the invention is susceptible of embodiment in other forms of apparatus than those shown and that various changes may be made in the details ofjconstruction without'departing from the scope of the invention as defined in the claim.

In the drawings:

Fig. l is a longitudinal sectional view of an apparatus adapted for the treatment of coal for the elimination of slate, stone, grit and the like therefrom in which my invention has been embodied;

Fig. 2 is a top plan view thereof;

Fig. 3 is a transverse sectional view taken on the line 3-3 of Fig. l;

Fig. l is a vertical longitudinal sectional view of a slightly modified construction of apparat-us in which my invention is embodied;

Fig. 5 is a similar view showing another modified construction of apparatus in which the said inventionv is embodied;

Fig. 6 is a view in longitudinal vertical section showing still another modified construction of embodying the invention; and

Fig. 7 is a vertical sectional view taken on the line 7-7 of Fig. 6.

Referring to the drawings: l designates a tank having an opening 2 in its bottom which is adapted to be opened and closed by a valve 3 actuated by a lever 4 and connecting rod 5. In the several forms of construction, endless carriers 7 are provided for conveying the coal from the apparatus after the same has been separated from the slate, stone or other material to be eliminated. The slate, stone and other material of specific gravity higher than that of the coal, is conveyed from the apparatus by means of an endless conveyer 8. The endless conveyers 7 and 8 for separately conveying the coal and slate from the apparatus are of known construction and operate in known manner.

Referring new to Figs. 1 to 3, inclusive, ofthe drawin'ffs "l2 designates a screen con= .gisting in the et a lOO ' .ing valve 32.

inous plate which extends across a portion ol the tank 1. a considerable distance above the bottom 13 thereof. rlfhe said plate 1Q is inclined downwardly lrom the front to the rear and. in etl'ect, constitutes the bottom olf a pan or receptacle into which the material, such as coal with its adniixture o'l slate, bone and the like, being` treated is dis-- charged Yfrom a chute 14 trom a source et supply (not shown). rThe said material is discharged into what is in elilect a hopper 14' and vis caused to flow or move rearwardly underneath the gate 15 and over the screen bottom 12.

The grate 15 may be adjusted by turning the crank handle 16 and the nut to which it is attached in known manner.

The rear edge or end portion of the plate 12 is supported upon an upright plate 17 or solid wall ol` other construction. The space between the said wall 17 and the rieht hand wall ot' the tank 1 is divided by means ot vertically arranged partition plates or boards 18 into a series of compartments 19, 2O and 2l. The bottoms ot these conmartments are provided with openings which are adapted to be opened and closed by means of valves 23, actuated by means of handles 24 and connecting rods 25, or in any other preferred manner.

For the purpose of aiding and facilitating; the movement ot the material. such as coal with its admixture of stone slate and the like, being treated. means is provided for subjecting the portions thereof directly above the compartments 19, 20 and 21 to successive impulses at proper intervals of upwardly flowing water. The water is supplied to the said compartments through slots 27 in the lower sides of horizontally yarranged pipes 2S, the inner ends ot which are closed as shown in Fig. 3, while the outer ends thereot have connection with a manifold 8O having connection with ay water supply pipe 31. The pressure otl the water as it issues trom the pipe 31 is adapted to be controlled by means of a pressure regulat- For the purpose oit causing the water to vl'low upwardly from the compartn'ients 19, 20 and 21 through the screen 12 in successive impulses of greater or less ilreqnency, a rotatable plug` valve 40 is provided between the valve 32 and the manifold 30. The valve 40 is provided with an openin;` 41 which extends therethrough and also is provided with a stem or shaft 43 which has a wheel 44 thereon, over which a driving` belt 45 passes. The said belt is driven by means of a wheel 46 upon the main driving shaft 47 of the apparatus which is driven by .means of a driving wheel 48, the latter in turn being driven by a belt or band (not shown). For the purpose of holding the belt 45 tight, an idler wheel 50 is provided. By varying the sizes of the Wheels 44 and compartments 19, 20 and f2.1 in successive is delivered impulses and in like manner through the 'from the said compartments openings ot the screen 1Q.

ln order that the `torce of the impulses with which the wat-er is delivered trom the respective compartments 19. 2O and 21 may be varied and controlled as desired.y the pipes 2S which extend into said comiljiartments as heretofore described are each provided with pressure regulating valves 5l. lily regulatingr these valves. the pressure of the water within the pipes 2S is cont-rolled, and by the regulation o1 such pressure the amount et water delivered and the 'torce o'l the successive impulses oit its upward flow are varied and controlled.

In the actual operation ott the apparatus the amount oit water delivered trom the compartment 9.1 may be less than that required to be delivered from the compartment :20; nor is it necessary that the water from coinpartment 21 shall be delivered intermittently. lt is only neces'ary that su'l'licient water he delivered to the hopper 14a or that some means be provided to cause rearward movenient of the material under the gate 15. The amount of water delivered from the compartment 2O must be suliicient and delivered at such rate as to cause suspension ot the material in the water above the screen. The different materials oi the inaes being treated being;` of dili'lerent sp-ecilic gravities they range themselves in stratilied positions at di'llerent heights above the screen 12 and are carried rearwardly by the 'flow oli the water into position adjacent the vertically adjustable `nate or valve The coal is ot less speeil'ic gravity than the relusc matte` and consequentlyv collect-l in a stratum above the latter. VShe amount and the speed ot the tlow ot water from the compartment 19 are less than from compartment ZO so thatl the slate. stone and other refuse matter and the coal settle down upon the screen with the coal confltituting the top layer or stratum.

rllhe slate. stone and the like olE higher specitic gravity are discharged underneath the vertically.adjustable grate or valve and pass over the upper edge of the vertically adjustable plate Adjustment ot the plates and 56 i1 effected by means ot the crank actuated nuts 57. in known manner. The coal or other material from which the slate, stone and 'the like have been sepaltlD ' upper end oi" the said rod is connected at.

' to a post ated being` oi lighter `sp-ecitic gravity constitutes the topmost layer of the mass and is discharged over the upper edge ot the breast plate 60' and tlows downwardly to the lower end of the endless conveyer 7 and is conveyed thereby frein the apparatus. ri'fhe slate yThe discharge ol the refuse and the coal is causd by the upward flow of the water from the compartment 19. The amount of water delivered from this compartment should be sufficient to ettect discharge as stated but should not be sutticient to elevate the slate and cause its discharge with the coal.

Y Referring now to Fig. t of the drawings: l'twill be noted that tiie space between the bottoni 18 ot' the tanl; and the screenv 12 of the rec ptacle for the material to be treated is divided into con'ipartments by means of the vertical partition plates 1821s in 1 to 3. rllhe compartment or chamber 6l is situated underneath 'a pivoted gate 62 onto which the slate, stone and the lile and the coal to be discharged are deposited, the same having been previously stratitied in the manner described in connection with Figs. 1 to 3 vwith the coal constituting the upper or top stratum. rlhe gate 62 is hinged at 63 andV its rear swinging end portion is connected to the lower end of a connecting rod 64. The

65 to a lever 6G pivoted intermediate its ends An adjustable weight 68 upon the said 'lever tends to hold the gate 62 in closed. position with its rear upper edge "against the lower edge of a breast plate 70 the tank by the conveyer but in'operation the said gate does not rest against the lower edge of the plate 70. The intermittent pulsating How ot the water upvardly trom the compartnient. 61 against the vslate, stone and the like and4 coal resting upon said gate etlects discharge of the slate, etc. and vthe coal and causes a vibratory or swinging mov-ement of said gate. The relue, consisting ot slate, stone and the like. is discharged underneath the lower edge et' the breast plate 70 and is delivered into the bottom ot the tank l and is conveyed therefrom by the endless conveyer 8 1n known manner. The coal is discharged over the top olf the plate 70 and is removed trom y ln order to permit vertical s ringing .movements of the gate G2, the upper edge or end of the outer wall T2 of the compartment (il terminates a distance below the lower edge ot the breast plate 7 0, leavingI a considerable gap between the said upper edge of the wall 72 and the lower edge bf the plate 70. The said gate is provided with curved Hange 73 which constitutes a. closure for the said gap,'so as to prevent the outlew of any considerable previous constructions.

portion ot' water from the compartn ent (il through the said gap. lt is necessary that the water shall flow upwardly .through the perforations in the gate 62 in order that the discharge ot the refuse and the coal may be facilitated and properly effected.

rlhe bottoms oi the compartments between the bottoni 1 3 and the screen ll2 and gate 62 are provided with openings 22 which are adapted to be opened and closed by slide valves 28 Vwhich may be operated in any suitable and convenient'. manner, as by means such as isshown for operating the corresponding valves in Figs. l to 3 of the drawings. Mater is supplied to the compartments intermediate the screen l2 and the bottom 13 Yiii-om the pipes 28 through slots 2i' in the bottoms thereof, as in Figs. l to The water is discharged from these slots intermittently in the same manner as described in connection with the construction disclosed in Figs. l to 3 of the drawings.

Referring now to the construction shown in Fig. 5 of the drawings, it will be noted that the space intermediate the bottoni 13 and the screen 12 is divided into compartments by means ol partition plates 18 and that water is supplied intermittentiy to the asid compartments from pipes 28 through slots 27 in the bottoms thereof as in the These compartments are provided with openings 22 which are controlled by valves 23 which may be operated previously described.

The mass constituting a mixture oit coal, slate, stone and the like, or other material containing relatively heavy in'ijiiurities to be eliminated is delivered to the as in the construction shown in Figs. l to 9 ol the drawings and is subjected to the action or intermittently flowing water discharged upwardly through the screen l2 trom the conipartnients underneath the same. lthe coal being the lighter is ultimately separaten in the manner as described in connection with l to 5 Ytrom the. slate, stone or other relatively heavy material, and linally constitutes the upper stratum ciI the whole mass. 'llhe heavier material slides downwardly along the inclined portion 80 which constitutes an extension ot' the screen l2, underneath the inner or liront edge of the adjustVH able breast plate ittdjustment ot' the said plate is ellected by means of an adjustable screw threaded rod 82 which hasl connection as indicated at 83 with the 'forward swinging edge of the said breast plate. The coal, constituting the upper stratum ot the mass, passes onto the said plate and thence to the conveyer 7 by means ot which it is conveyed 'from the apparatus. 'lhe slate, stone and the like are discharged onto the bottom ot the tank l and are conveyed theretromby means of the endless conv-eyer o.

lteiferring now to Figs. 6 and 7 or". the

llt)

drawings, it will be seen that the material to be treated by the jigging medium is delivered trom a chute 111: into the hopper 14? trom which it par es underneath. the lower edge ot' a gate or valve 15 which is adapted to be adjusted by means ot a crank 1G and nut to .vhich it is secured. rl'he space under neath the screen bottom et the apparatus is divided by means ol upright partition plates or walls 19 into compartments 19, 20 and 2l. ll'rater is delivered into these compertinents through openings 27 in the lower sides ot horizontally extending pipes 28 situated therein. elivery ot the water to these pipes and the control ot its delivery theretrom into the compartn'ients 19, 29 and 21 are e'liected in the manne;` as described in connection with the preceding ligures oli the drawings. As the mixture oit coal, slate, stone and the like moves rearwardly atter it has passed underneath the gate or valve l the upward flow ol the water 'trom the compartments 29 and 2l etlects suspeiision thereot within the water above the screen bottom 12 so that stre-.titication takes place in accordance with the specilic gravities olli the ditterent materials as has been previously described. The slate, stone, etc., and the coal Vlinally settle down upon the screen bottom in liront ot the gate or valve and breast plate (il). rllhe coal, as is usual, rests upon the slate, stone and the like. The slate and other reluse are discharged underneath the gate or valve 55 while the coal, being the lighter and being deposited upon the top ot the bed ot slate, stone, etc., is discharged over the upper edee ot the breast plate (i0.

ln order that the operator or person in charge ot' the apparatus may observe the interior olf the apparatus tor the purpose et ascertaining whether or not proper separation ot the coal and the refuse matter is being eltccted l have provided openings which are closed by transparent material, such as glass, as indicated at a. These openings are shown only in Figs. 6 and 'l but olwiously they may be employed in the other l'orms oit construction it desired. lr" by observation it is ascertained that proper separation not being elilected adjustment ott the valves to vary the tiow ot water through and trom the dlli'erent compartments underneath the screen bottom 12 may be made.

The .screen bottom 12 extends rearwardly and slightly downward y, as indicated at 99, and terminates in a tlaage-like enlargement, indicated at 9i, against the outer or rear stu-tace ot which a vertically adjustable gate 92 is litted. rThe said gate is provided with a rod 92;) which extends upwardly and to the upper end ot' which a nut 9st has screw threaded connection. Adjustment ot' the rod vertically is etleeted by rotation of the said nut so as to vary the height ot the and trom the latter upwardly through the .portion ot the screen bottom 12 which is located thereover should be sutticient to etlect discharge o'f the coal and the retuse as heretofore indicated, but should not be sufficient to move or throw the slate, stone and the like upwardly with sutlicient force to cause an admiring ot the coal and retuse after the separation the-reci as described.

It may happen that the reluse consisting ot slate, stone and the like may pile up too high against the trent side ot the gate 55 and breast plate 69, with the result that it might happen that portions oir' the slate, etc. would be discharged with the coal over the upper edge ot the breast plate GO. In order to prevent this occurrence l have provided means for facilitating and accelerating the discharge oi the slate trom underneath the gate or valve 55 and over the edge ot the gate ot stop plate 92. To this end I have provided a valve plate 95 hinged to the upper edge et a rear wall 1T, Normally the said valve plate 95 is held in vertical position, as indicated in tull lines in Fig. 6 ot the drawings, with its upper edge portion resting against stops 96 secured upon the under side ot the screen bottom 12. The holding ot thel valve plate 95 in this position is eil'eeted by means et a. weight 98 adjustably supported upon a lever arin 99, which arm is .situated exteriorly of the tank 1 as shown and which is connected at its rear end to the said valve plate. ln case the refuse matter should pile up to too great an extent upon the 'front side or the gate 55 and breast plate G0, so that by reason ot its weight it would otl'er unusual and too great resistance to the passage o'l water directly upwardly through the screen bottom 12, the reaction would etlect tilting or opening ot the valve plate 95 to vard the lett so as to provide a passageway tor the water through the extended portion. 99 oi the screen bottom 12 to the lett otf the gate 55. The passage ot the water upwardly through the portion et the screen would ettect more rapid discharge oit the refuse over the upper edge ot the gate 92, with the re'- sult that more rapid delivery et the refuse underneath the gate 55 would be brought about so that the height or thickness ot' the bed et refuse material above the screen bottom 12 in front ot' the said gate 55 and breast plate 60 would be decreased. Upon the decreasing of the thickness and the lll() weight of the bed o' refuse material above the portion of the screen bottom l2 above the compartment 1.9, the water would again take its usual course upwardly through the said screen bottom while the valve plate 95, under the influence ot the weight'QS, would be closed or returned to the position as shown inv Fig. Got the drawingsA rIhe said valve plate is indicated by dotted lines in an open position.

It will be seen that the construction as disclosed in Figs. G and I provides means whereby the height and the weight ot the bed of refuse material (slate, stone and the like) above the screen bottom l2 in iront of the gate 55 and 'breast plate 60 are auto" matically controlled in such manner as to insure that the .said refuse will not be discharged over the upper edge oi the breast plate 60 and be delivered as an impurity with the coal previously separated therefrom.

It will be noted thatin theseveral forms off construction, the water is discharged downwardly Jfrom the pipes which are located in the compartments underneath the screen l2. It is preferable, though not essential to my invention, that the water be discharged downwardly in said compart` ments so that the torce thereot may be spread over substantially the entire cross sectional area ot the respective compartments. By thus discharging the water the force ot the upward flow from any compartment is substantially uniform throughout the area of the portion of the screen bottom through which it passes. By causing the water to be discharged `tromthe respective compartments with substantially uniform force at all points in the horizontal or transverse area thereoic better and more etlicient y results are obtained in operation.

It will be seen that by my invention I have provided a unitary apparatus having means whereby the water from one of the compartments under the bottom of the separating receptacle or chamber may be caused to flow upwardly with greater speed and force than is the case with the water which is .discharged from another or any one of the other compartments of the apparatus. By thus controlling the speed and force of the water which is admitted to different areas or portions of the saparation chamber, I am enabled to etl'ect a much more com- .'13 plete and efficient separation of the slate, stone and the like, particularly in the smaller sizes of coal, than is possible with the ordinary construction in which the water is discharged into the said separation chamber with substantially the same 'torce at all points or" the bottom thereof.

. Having thus described my invention, what I claim and desire to secure by Letters Patent is:

In a coal jig, the combination of a chamber for receiving the coal with impurities intermingled therewith tor washing and separating the same, the said chamber having a bottom provided with openings extending therethrough, a breast plate and adjustable gate at the rear end of said chamber, the said bottom extending rearwardly and beyond the plane ot' the said breast plate and gate, a stop plate adjacent the rear edge ot the said bottom, a compartment situated underneath the said bottom, the rear wall ot the said compartment being in substantially the same plane as that of the said breast plate and gate, the upper portion of said wall comprising a gravity controlled gate which is adapted to open outwardly upon pressure from within, and means for intermittently and controllablyy supplying water to the said compartment, the water from the compartment being adapted, in the event oit' the impurities and coal banking too l high against the br-east plate and gate, to re-act against the said gravity controlled gate to open the same whereby water is adapted to iow upwardly through the portion oit' the said bottom beyond and rearwardly of the plane or" the said breast plate and gate, substantially as described.

In testimony that I claim the foregoing 25 as my invention, I have hereunto signed my name this 13th day of November, A. D., 1923.

MAXIMILIAN S. HACHITA.

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