US1100921A - Coal-washer. - Google Patents

Description

N. SHANNON.

GOAL WASHER.

APPLICATION FILED SEPT. 7, 1907.

1,100,921 Patented June 23, 1914.

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N. SHANNON.

GOAL WASHER.

APPLIOATION FILED SEPT. 7, 1907.

Patented June 23, 1914.

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NICHOLAS SHANNON, OF COLLINSVILL'E, ILLINOIS, ASSIGNOR TO LINK BELT COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

COAL-WASHER.

Specification of Letters Patent.

Application filed September '7, 1907.

Patented June 23, 1914.

Serial No. 391,762. 7

To all whom it may concern Be it known that I, NICHOLAS SHANNON, a citizen of the United States, and resident of Gollinsville, Madison county, Illinois, have invented certain new and useful Improvements in Coal-\Vashers, of which the following is a specification containing a full, clear, and exact description, reference being had to the accompanying drawings, forming a part hereof.

My invention relates to a coal washer, my object being to construct a simple, inexpensive apparatus, utilizing the jig principle, and which very efiiciently washes coal and the like, and separates the refuse, such as clay, slate, and sulfur from the clean coal; and which apparatus can be operated with a much less amount of power than are similar devices now in use.

To the above purposes, my invention consists in certain novel features of construction and arrangement of parts, which will be hereinafter more fully set forth, pointed out in the claims, and illustrated in the accompanying drawings, in which Figure 1 is a vertical section taken longitudinally through the center of a coal washer of my improved construction; Fig. 2 is a plan view of the coal washer; Fig. 3 is a vertical section taken on the line 3-3 of Fig. 1; Fig. 4 is a detail section illustrating the gate which controls the discharge of refuse from the jig.

Referring by numerals to the accompanying drawings :1 designates a tank, of suitable size and construction, and which is divided by means of the vertically disposed partitions 2 and 3 into three compartments, which are designated as the clean coal compartment a, the jig compartment 5, and the refuse compartment 6.

The partition 2 does not extend all the way to the top of the tank 1, thereby forming an opening from the jig compartment into the clean coal compartment at the upper end of the tank, and the partition 3 terminates a short distance above the bottom of the tank 1, thereby forming an opening from the jig compartment into the refuse compartment.

Leading into the jig compartment, through one side of the tank 1, is a water inlet pipe 7, and leading from the opposite side of this compartment is an outlet pipe 8. Extending upward from the sides of the tank 1, above the jig compartment, are brackets 9; and journaled in the upper ends thereof is a shaft 10, which is driven in any suitable manner. Fixed on this shaft 10 is a pair of eccentrics 11, upon which are located straps 12, carried by the upper end of depending bars 13.

1 1 designates the body or hood of the jig, which is preferably constructed of sheet metal, in approximate rectangular form with open top and bottom, and of such size as that considerable space is formed be tween the side and end walls of the jig, the side walls of the tank 1 and the partitions and 3, when said jig is positioned in the ig compartment.

Fixed to the upper portions of the side walls of the jig are brackets 15, which carry a transversely arranged shaft 16, said shaft being suspended by the lower ends of the bars 13.

Mounted in suitable brackets. on the end walls of the jig are rollers 17, which, while the jig is in operation, bear upon the faces of the partitions 2 and 3, thus maintaining the jig in its central position in the jig compartment, and permitting it to move easily in a direct vertical line.

Fixed in the upper portion of the jig is an inclined perforated plate 18, in the lower end of which is formed an opening 19, through which the refuse discharges; and formed immediately above this opening, at the lower end of the plate or screen 18, is a refuse compartment 20, the entrance to which is controlled by a vertically moving gate 21, which is connected by an inverted U-shaped rod 22 to a hand lever 23, which latter is journaled upon the shaft 16, and is provided at its rear end with a latch 24:, adapted to lock in a rack 25.

Leading from the upper end of the jig, immediately over the compartment 20, is a spout or chute 26, which discharges over the upper end of the partition 2 into the clean coal compartment 4; and carried by the upper end of the jig 14, immediately above the upper end of the perforated plate 18, is a hopper 27 through which the coal to be washed is to be delivered to the jig.

When my improved washer is in use, water is admitted to the tank in sufficient quantity to maintain the waterline above the upper end of the partition 2, thus entirely submerging the plate 18 and the lower.

portion of the jig; and the shaft 10 being driven in any suitable manner, imparts a vertical reciprocating motion to the by reason of the eccentrics 11 carried by the shaft 10; and as said jig moves vertically, the rollers 17 bear on the partitions 2 and 3, thus permitting said lg to move easily and with the expenditure of a minimum amount of power.

The coal to be washed is delivered to the hopper 27, and passes from thence onto the perforated plate or screen 18; and, as the jig reciprocates, the slate, clay, sulfur, and other refuse, will readily gravitate to the bottom of the bed of coal in the jig, said refuse lying immediately uponthe plate or screen 18.

lVith each downward motion of the jig, the water confined between the four walls of the lower portion or hood of the jig and below the perforated plate 18 will tend to force its way upward through the perforated plate in the form of jets; and, in so doing, the coal, being lighter than the slate and other refuse, will be forced upward cleansed by the action of said jets, and be finally discharged through the chute 26 into the clean coal compartment 4, the coal being assist-ed in its movement by the jets; whereas, the slate, and heavier particles of refuse, will form a bed immediately upon the screen or perforated plate 18. This upward pressure of the water through the perforated plate is made possible, owing to the fact that both the compartments 5 and 6 are filled with water, and the opening through the partitions 3 is at the lower ends of said compartments; therefore, the volume of water contained in the lower portion or hood of the will seek an exit in the form of jets through the perforated plate during the downward movement of said jig rather than force a corresponding volume of water upward through the compartment 6.

When it is desired to permit the refuse to discharge from the perforated plate 18, the operator elevates the gate 21. by manipulating the hand lever 23, and the refuse will pass into the compartment 20, and from thence will discharge through the opening 19, and finally gravitate to the bottom of the refuse compartment 6, from whence it may be removed in any suitable manner.

If desired, the gate may be slightly opened and so held while the is in operation by locking the point of the latch 24 in the rack 25, and this will permit a constant discharge of the refuse from the surface of the late or screen 18.

In a coal washer of my improved construction, the is provided with roller bearings, and is not packed in any way, which arrangement permits said jig to be readily moved with a minimum amount of power; and by extending the body of the jig below the perforated plate or screen, a volume of water is trapped immediately be neath said plate or screen, which, together with the water in the refuse tank, is utilized to separate the clean coal from the slate, and like refuse.

In my invention, the slate or refuse which does not pass through the perforations in the bottom of the ig moves therealong from the side or point where it is introduced to the opposite side, whence it is delivered through a side opening into a slate chamber. This slate chamber is closed above but opens below into the inertia chamber beneath the bottom of the jig. This inertia chamber is of considerable depth so as to confine a considerable amount of water and cause the confined water by its inertia to move upwardly through the perforations in the when the latter descends. In the particular form shown, the jig, the inertia chamber and the slate chamber are integral, but, of course, they need not be. An essential point is that when the jig descends, all of the water should be directed upwardly through the mass of material in the This it could not do if the slate chamber did not open into the inertia chamber or if the slate chamber were open at the top, for in either event the water in the inertia chamber would tend to seek the easiest outlet, and that would be through the slate chamber, whereupon the material in the jig would form a dead bed. By an arrangement having the characteristics of that which I have shown, when the jig descends the entire volume of water in the inertia chamber is forced upwardly through the material in the jig, for since the pressure is the same on the bottom of the slate chamber and at the slate gate opening, there is no chance for the water thus to be, as it were, short-circuited from the bed. The slate freely drops into and through the inertia chamber.

The principle upon which my invention operates is, of course, entirely different from that of those devices where the whole mass of water is carried through the In this case the is moved upwardly and downwardly in a relatively still bed of water. There is little lateral flow of water from the jig and a minimum amount of water disturbance within the The separation within the jig is effected by gravity so long as the bed of material in the is loosened up at regular intervals and the lateral movement of the material from the is effected by the pressure of the incoming supply.

During the operation the water in the inertia chamber and in the may be thought of as for the most part substantially at rest. The water in the inertia chamber does not flow upwardly in any quantity, but only passes through the perforations in the bottom of the while such perforated hottom isdescending through the water. Thus a larger amount of water is in the jig or above the bottom of the jig and therefore stratum material can distribute itself more widely measured in a vertical direction. In other words, its particles separate or settle or tend to stratify, the lighter on top and the heavier toward the bottom. It is essential for successful operation that substantially all of the water in the jig be confined or be protected from violent lateral displacement. Such lateral displacement would occur if the slate chamber did not open into the inertia chamber or if it were open at the top in the operation of the device as described. When the jig descends,

the entire volume of water within the jig and within the inertia chamber remains practically still except so far as its operation is disturbed by the upward and lateral rush of water through the slate chamber into the jig. hen the jig descends, the support for the material within the is removed and the particles of the material within the jig being held in suspension immediately begin to descend with unequal velocity according to their specific gravity and arrange themselves in the desired specified form.

I claim 1. In a coal washer, a tank arranged to contain a body of water, a jig comprising a casing divided by a perforated plate, a gate carried by the casing adjacent one end of said plate and forming with the walls of the casing a refuse compartment, there being an opening in the bottom of said compartment for the discharge of refuse therefrom into the casing beneath said plate, a coal discharging spout carried by the casing and extending over said refuse compartment, and means for imparting a vertically reciprocating motion to the jig, whereby said casing will confine a body of water and cause the water to issue in jets through said plate and also through the refuse compartment.

2. In a coal washer, a tank arranged to contain a body of water, a jig, comprising inclosing walls, open at its top and bottom, an inclined plate dividing said inclosing walls into a coal receiving chamber above the plate and a water confining chamber beneath the plate, means arranged within the confining walls above said plate and at the lowermost end of the plate for forming a refuse compartment, there being a discharge opening in said plate at the bottom of said refuse compartment which leads from said compartment into the hood beneath the plate, there being jet openings formed in the body portion of said plate, a coal discharging spout arranged over said refuse com part-ment, and means for imparting a vertical reciprocating motion to the jig.

3. In a coal washer, a jig comprising a coal compartment having its bottom provided with a series of perforations and a refuse discharge opening near one end thereof, a chamber projecting below said perforated bottom and carried by and movable with said coal compartment and inclosing said refuse discharge opening, said chamber being adapted to contain beneath the perforated bottom a constant and uniform volume of water, a refuse compartment located directly above and covering the refuse discharge opening, said refuse compartment being provided with a gatecontrolled opening between the perforations in the bottom of the coal compartment and the refuse discharge opening, a coal discharge spout lying above the refuse compartment, and means for imparting a vertically reciprocating motion to the jig.

4:. In a coal washer, a jig comprising a coal compartment having an inclined perforated bottom and a refuse discharge open ing adjacent the lowermost end thereof, a chamber projecting below said perforated inclined bottom and carried by and movable with said coal compartment and inclosing said refuse discharge opening, said cham her being adapted to confine beneath the perforated bottom a constant and uniform volume of water, a refuse compartment located directly above and covering the refuse discharge opening, said refuse compartment being in communication with the coal compartment and with the chamber carried by the coal compartment by means of an opening formed in one wall of said refuse compartment, a gate for the opening in the wall of said refuse compartment, means for operating said gate, and means for imparting a vertically reciprocating motion to the jig whereby the water confined by the chamber may be caused to issue in jets through the perforated bottom only, or through both the perforated bottom and the refuse compartment, and a coal discharge spout carried by the coal compartment.

5. In a washer the combination of a washing tank with a jig therein having a perforated bottom and material and refuse discharge openings at one side, means for reciprocating the jig, means for supplying material to the jig at a distance from the openings, an inertia chamber beneath the jig, a refuse chamber outside of the jig closed above, but connected at all times dur ing operation with the refuse discharge opening of the jig and the inertia chamber whereby all the water is directed through the whole of the bed of material in the jig and the separated refuse is discharged into the inertia chamber.

6.1n a washer the combination of a washing tank with a jig therein having a perforated bottom and material and refuse discharge openings at one side, means for reciprocating the jig, means for supplying material to the jig at a distance from the openings, a relatively deep downwardly extending inertia chamber beneath the jig, a refuse chamber outside of the closed above but connected at all times during the operation with the refuse discharge opening of the jig and the inertia chamber whereby all the water is directed through the whole of the bed of material in the jig and the separated refuse is discharged into the inertia chamber.

7. In a washer the combination of a washing tank with a jig therein having a perforated bottom and material and refuse discharge openings at one side, means for reciprocating the jig, means for supplying material to the jig at a distance from the openings, a relatively deep downwardly extending inertia chamber attached to the jig and beneath the jig, a refuse chamber outside of the jig closed above but connected with the refuse discharge opening of the jig and the inertia chamber whereby all the water is directed through the whole of the bed of material in the jig and the separated refuse is discharged into the inertia chamher.

8. In a washer the combination of a washing tank with a therein having a perforated bottom and material and refuse discharge openings at one side, means for reciprocating the jig, means for supplying 'material to the jig at a distance from the perforated bottom and material and refuse discharge openings at one side, means for reciprocating the ig, means for supplying material to the ig at a distance from the openings, a relatively deep downwardly 8X1 tending inertia chamber attached to the jig and beneath the jig, a refuse chamber outside of but attached so as to reciprocate with the and connected with the refuse discharge opening of the jig and the inertia chamber whereby the water is directed through the whole of the bed of material in the and the separated refuse is discharged into the inertia chamber.

In testimony whereof, I have signed my name to this specification, in presence of two subscribing witnesses.

NICHOLAS SHANNON. lVitnesses M. P. SMITH, E. L. WALLACE.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents.

Washington, D. C.

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