US1086129A

US1086129A - Coal breaker and cleaner.

Info

Publication number: US1086129A
Application number: US43248808A
Authority: US
Inventors: George W Borton; Joseph L Hiller
Original assignee: Pennsylvania Crusher Co
Current assignee: Pennsylvania Crusher Co
Priority date: 1908-05-12
Filing date: 1908-05-12
Publication date: 1914-02-03
Anticipated expiration: 1931-02-03

Description

G. W. BURTON & J. L. HILLER.

COAL BREAKER AND CLEANER.

APPLICATION FILED MAY 12, 1908.

1,086, 1 29, Patented Feb. 3, 1914.

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GOAL BREAKER ANDGLEANER. APPLIOAITION FILED MAY 12, 1908. 1,086,129. 7 Patented Feb. 3, 1914.

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GEORGE W. BORTON, OF HADDONFIELD, NEW JERSEY, ANDJOSEPH L. KILLER, OF EAST MATTAPOISETT, MASSACHUSETTS, ASSIGNORS T0 PENNSYLVANIA GRUSHER 'COMPANY, OF PHILADELPHIA, PENNSYLVANIA, A CORPORATION OF NEW YORK;

COAL BREAKER AND CLEANER.

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Specification of Letters Patent.

Application'filed May 12, 1908. Serial No. 132,488.

PatentcdFeb. 3, 191a.

To all whom it may concern Be it known that we, GEORGE W. Bowen and JOSEPH L. HILLER, citizens of the United States, residing, respectively, in I-Iaddonfield, New Jersey, and East Mattapoisett, Massachusetts, have invented certain Improvements in Coal Breakers and Cleaners, of which the following is a specification.

Qne object of our invention is to provide a machine particularly designed for breaking coal and separating sulfur balls and slate therefrom, which shall possess certain improvements in the construction of its parts, whereby such machine shall be rendered more efficient in operation as well as more substantial in construction than has hitherto been the case in machines of the same class.

It is further desired to provide a breaking and cleaning machine having its parts so arranged that the continuous feeding through the machine of the material under treatment shall be assured, while in addition certain of the parts shall be so constructed as to permit of their adjustment to vary the time required for the passage of a given body of material through the machine.

We also desire that the various parts of our machine shall be so constructed and of such a nature and arrangement as will permit of their being manufactured and assembled with a minimum of expense consistent with the provision .of a substantial and reliable structure.

These and other advantageous ends we secure as hereinafter set forth, reference being had to the accompanying drawings, in which Figure 1, is a vertical longitudinal section of the machine constituting our invention; Fig. 2, is a transverse vertical section of the machine illustrated in Fig. 1, taken on the line 2-2 of said figure; Fig. 3, is a fragmentary section of one end of our machine, showing the discharge plow in position; Fig. 4, is a perspective view illustrating the detail construction of the discharge plow;

Figs. 5 and 6, are respectively a plan and a side elevation of one of the conveyor plates, and Fig. 7, is a fragmentary perspective view of one end of our machine, illustrating in detail the construction of one of the lift-- in shelves.

n the above drawings, A represents two frames or supporting structures on each of which is mounted a shaft bearing a for the support of the moving part of the machine; The supporting structure or framework of said part consists of a pair of circular heads B and C united by a number of parallel bars or beams D and each provided with spokes, indicated at b and 0, respectively radiating from hubs b and 0.

From Fig. 2, it will be seen that the heads B and C are each made in two parts joined along a diametrical line, the parts of the head B being held together by bolts 6 and 6 of which the former serve to clamp the hub immovably to a shaft 6 operative in the adjacent bearing A. The head C is similarly made in two parts and likewise clamped to a shaft 0 operative in the second of the bearings a.

From Fig. 1, it will be noted that each of the hubs is provided at each end with a cylindrical projection, indicated at b and 0? respectively, and on these are shrunk steel rings (1, whereby the hubs are still further clamped to their respective shafts. The

head B is of frusto conical form and possesses an integral portion 6 projecting beyond the plane of the outside edges of the spokes b so that the spout R, whereby material is discharged into the casing, is permitted to project inside the end of the head without being interfered with by the spokes. These spokes, as well as the spokes c, are usually of an I-beam sect-ion. On the inside faces of the beams D which join the heads are bolted a series of plates (1, having perforations d of any desired size and together serving to form a generally cylindrical screen. Within this screen are mounted any desired number of inwardly projecting longitudinally extending shelves E substantially parallel with the line of the shafts 0* and b and designed to engage and carry up and drop the coal or other material operated on, as the drum formed by the frame and its screen is revolved. Each of these shelves is made of a number of removable sections, as illustrated in Fig. 1, which are held by bolts 0 to the flange of the beams D. They are of an bshaped section, each provided with a number of buttresses or braces c.

As shown in Fig. 7 we place at that end of each shelf adjacent to the head 0, (which is at the discharge end of the drum) an end piece 6 whereby material engaged by the shelf is prevented from being dropped off the end thereof out of the machine. These end sections each consist of a-flat plate having a flange 6 extending at right angles to it and parallel with the flat face of the end of the shelf, to which it is held by bolts. For causing longitudinal movement of the coal or other material through the drum, we provide this with a number of inwardly projecting conveyor blades F, inclined to a plane transverse of said drum. As shown best in Figs. 5 and 6, each of these conveyer blades consists of a portion f extending substantially at right angles to the surface of the screen plate upon which it is mounted, and presenting a perfectly flat or unobstructed face to the material operated on. Each blade has in addition a flat lug or flange f. projecting in a plane substantially at right angles to the portion f and provided with a slot 7, preferably formed in the arc of a circle drawn from a center coincident with the central line of a bolt hole i extending the full height of the plate F adjacent to one end thereof. At the opposite end of the plate there is placed another bolt hole, indicated in dotted lines at ffl which' is of generally conical form, being tapered from the bottom to the top. On the bottom face of the plate, around the bolt holes f and g, are circular bosses f and f, whereby the earing of the plate upon the screen plate is localized. Said plate is firmly held in-position by bolts 7" and f respectively mounted in the holes i and the slot f and extending through previously prepared holes in the screen plate at into the flanges of one of the beams D. These two bolts serve as the primary holding means for the blade and after the conveyer-plate F has been adjusted to, the desired angle by being turned about.

the bolt as a center, the nuts on this bolt and on t e bolt i are set up. A third bolt f is then introduced into the tapered hole 7 of the plate, which by reason of its shape permits the said bolt to be inclined as necessary, so that it will pass through one of the holes of the screen. This end of the blade is therefore held by its bolt directly to the screen plate, which bolt' therefore serves as a reinforcing holding means.

For assisting in the discharge of material from the drum, we provide a discharge plow Gr shown in Figs. 1 and 4:, and it will be seen that this consists of a casting or forging having a portion g designed at one end to lie in contact withthe inner surface of one of the screen plates at the discharge end of the drum, so as to present a substantially flat surface to the material acted on. From said end it is bent or curved so that its opposite end lies in a plane substantially at right angles to the axis of the drum, there being a raised flange g for the inner edge of this portion g. The second end of the plow is turned at right angles, as shown at 9 so as to extend parallel with the axis of the drum and is designed to engage one of r the spokes 0 of the head C to which it is properly bolted. The plow also has a portion between its receiving end 9 and the turned over portion 9 which serves as a bolting lug whereby its receiving end held to the screen plates or to the longitudinal beams D, as the case may be. For drivin the drum, we provide a gear H which is preferably made in a number of sections rigidly mounted upon the head B and for this purpose the various sections are provided with an inwardly extending flange h engaged by the bolts 03 whose main function is to hold together the transverse beams D of the frame and the head B. In order to reduce the machine worknecessary, as well as to localize the bearing of the gear sections upon the head, we countersink the gear flange as well as the head, placing therein washers h, as shown best in Fig. 1. The bolts pass through the flanges of the gear sections, the washers h and the ends of the beams D, holding the parts rigidly in place and yet rendering possible the removal of one of the gear. sections independently of the remainder whenever this may be necessary.

Under operating conditions coal or other material to be cleaned and broken is fed through the chute B into the drum formed by the screen plates 03 while said drum is driven by power applied through the gear H, at a speed of from 10 to 15 revolutions per minute. Under these conditions the coal delivered through the chute is engaged by the various shelves E, and after beingcarried up on one side of the drum, is permitted to drop from said shelves so that it is more or less broken. The foreign material, such as slate and sulfur balls, bein harder than the coal, is not materially affhcted by this repeated elevation and dropping, while the coal, being more or less shattered and broken, passes through the screen platesd into a suitable receptacle. The conveyer blades F insure the movement of the mass under treatment longitudinally through the drum, and by the time it approaches the head C, practically all of the coal has been broken sufficiently to have passed through the openings inthe screen plates d, whilethrough the machine at the speed best suit-v ed to insure the complete breakage of the its coal and therefore its separation from the foreign bodies before these latter are discharged, and We have found that the action of the blades is rendered more satisfactory and the machine as a Whole made more efficient by making their engaging faces smooth and free from the heads of the bolts used to hold them in place. The shelves being made in independently removable sections, can easily and quickly be taken out when broken, While by the provision of the end plates, the premature delivery of material from the machine is effectually prevented.

VVe claim 1. A rotatably mounted screen drum open at the ends and provided with a head at each end; with means for delivering material into the drum through one of the heads; said latter headhaving a main portion of frusto-conical form; a hub; and a series of spokes of I-section radiating therefrom to said main portion; the flanges of the said spokes lying in planes at right angles to the axis of the drum.

2. The comblnation in a cleaning and breaking machine, of a drum consisting of two heads having spokes of I-section placed with their flanges lying in planes at right angles to the axis of the drum; a series of beams connecting said heads; a screen structure mounted on said beams; means for delivering material to the drum; and a plow for discharging material from the drum; said plow consisting of a-bent structure having one end fastened to the frame of the machine and placed to engage material at the end of the drum; its other end being provided with an extension in engagement with the web of one of the spokes.

3. The combination of a rotatably mounted screen drum having within it a plurality of angularly set conveyer blades; each of said blades presenting a substantially flat plow at the delivery end thereof.

blade; with bolts passing through said holes so as to retain the blade in position.

5. The combination with supporting bearings of two shafts; a hub rigidly fastened to each shaft and provided with radiating spokes of I-beam section; the flanges of said spokes lying in planes at right angles to the axis of the drum; a frusto-conical structure mounted on each set of spokes; a series of substantially parallel beams extending between each of said structures; a series of perforated plates fastened to the inside surface of said beams to form a screen drum;

a plurality of shelves extending parallal to the axis of the drum and projecting inwardly from the same; a series of conveying blades mounted angularly upon the inside surface of the main structure; and each presenting a substantially flat surface for engagement with the material operated on; means for delivering material into the receiving end of the drum; and a discharge- In testimony whereof, we have signed our names to this specification, in the presence of two subscribing witnesses.

GEORGE W. BORTON. JOSEPH L. HILLER.

\Vitnesses WVILLIAM E. BRADLEY, WM. A. BARR.