US1461148A

US1461148A - Drying apparatus

Info

Publication number: US1461148A
Application number: US416857A
Authority: US
Inventors: John F Hughes
Original assignee: Individual
Current assignee: Individual
Priority date: 1920-10-12
Filing date: 1920-10-12
Publication date: 1923-07-10
Anticipated expiration: 1940-07-10

Description

July '10, w23. MAMA@ J. F. HUGHES vDRYING APPARATUS Filed Oct. l2 1920 4 Sheets-Sheet l July 10, 1923.

ummm@ J. F. HUGHES f DRYING APPARATUS Filed Oct. l2, 1920 4 Sheets-Sheet 2 J. F. HUGHES DRYING APPARATUS Filed OCC. 12, 1920 4 Sheets-Sheet 5 July l0, 1923. LMLMS J. F. HUGHES DRYING APPARATUS Patented July 10, 1923.

PrvrEN'r OFFICE.

JOHN E. HUGHES, or rENNs GROVE, NEW JERSEY.

DRYING APPARATUS.

Application led October 12, 1920. Serial No. 416,357.

To all whom t may concern.'

Be it known that I, JOHN F. HUGHES, a citizen of the United States, residing at Penns Grove, in the county of Salem and State. of New Jersey, have'invented certain new and useful Improvements in Drying Apparatus, ofwhich the following is a speciiication. i f Y i One objecty of my invention is to providel improved meansy which will facilitate and expediteV thedrying of coloring material, dyesior thelike, such forV example as used in the mixing ofpaint.' This`- material, which before being dried is ina plastic condition, has lbeen found, prior to my present invention, exceptionally difficult to dry and usually is dried in shallow trays which is expensive and slow and the removal of the driedmaterial from the trays is a tedious, slow and expensive operation With the use of my improved apparatus, the material can be dried directly in barrels and the dried material can be permitted if desired to remain inthe barrel until needed for use.'` A

Anotherobject is to so arrange the parts of my improved apparatusthat material 4`'in a number of barrels can be simultaneously dried and that the drying action will be uniform so that all parts ofthe material will be properlyfand thoroughly dried to suit ideal conditions.

These objects, and other advantageous ends which will be described hereinafter, I attain in the following manner, reference being had to theaccompanying drawings in which- Figure l is an enlarged fragmentary elevation, partlyin section, showing one `full unit of my improved drying apparatus in position to effect the drying of the material, Figure 2 is a view of the same general character as shown in Figure 1 Vshowing' how a drying element can be either inserted in or'removed from a container, vsuch as a barrel, containing the material, y

Figure 3 is a fragmentary.sectional elevation showing the conducting means for the heating fluid and also illustrating the construction whereby the above mentioned heating element can be moved upwardly and downwardly `with respect to the container,

` Figure 4 is an enlarged fragmentary sectional perspective'vew takenthrough a por-A tion of the above mentioned heating element,

Figure 5 is an elevation showing a stationary stripping or cleaning blade arranged relatively to a screen frame which maybe mounted in the barrel; the screen being omitted, and

Figures 6 and 7 are respectively diagrammatic top plan view and side elevation illustrating how a number of units of my improved apparatus can be controlled to effect the drying of the material within a number of the containers.

Referring to the drawings, 8 represents a vacuum or suction room or chamber which when in use has a vacuum established therein; said room having a pipe 9 leading from its top, as shown in Figures 1 and 2, to permit suction of the air from the chamber and the floor 10 ofthe room, as shown in detail in Figures 1 and 2, is made hollow so as to have a heating fluid 11, such as hot water, passed therethrough to heat the interior of the chamber. various positions has holes 12 therein into which closely fit turntables 13, each capable of supporting a barrel 14 or other suitable container as clearly shown in Figures 1 and 2. These barrels are arranged in rows as clearly shown in Figure 6 and directly above the barrels are supported inlet manifold pipes 15 which communicate with a main inlet conduit 16 for a heating fluid, such for example as hot water.

Another series of outlet manifold pipes 17 are positioned respectively above the rows of barrels and communicate with a main header 18; said header 18 leading to the interior of the floor 10, as shown at 19, to supply the floor with hot water, after which the hot water after passing through the floor will run out of an outlet pipe 20 as shown in Figures 6 and 7. The water leads from the manifolds 15 through drying means hereinafter described, prior to passing into the outlet manifolds 17.

Over each of the turntables 13 is mounted a supporting structure which is illustrated in the form of a hanger 21 which lsupportsa collar 22 which is secured to an .externally screw threaded pipe 23; said pipe `depending toward the turntable and fitting within the internal screw threads of another pipe 241. yThis pipe 24: has a spider The floor l() au 25 secured thereto; said spider having a hand-wheel 26 secured thereto, as clearly shown in Figures 1 and 2. A hollow drying element 27, which consists of a tube ol substantially flattened tapered cross section as shown in Figure 4, is made in the 'form ol a double helix which surrounds the pipe 24 and at its upper end is secured to the spider 25. In other words, the element 27 includes two communicating spirally wound

portions

28 and 29 which are connected with each other at their top and which serve as conduits for the heating fluid in a manner now to be described.

The upper end oi the pipe 23, as clearly shown in Figure 4, communicates with a fitting 30 which is connected with the outlet manifolds 17 by means of pipes 31. The lower end of the spirally wound portion 29 of the heating element 2T is yconnected to a fitting 32 which communicates with the interior of `the pipe 24. rIwo tubes `33 land 34 are positioned within the

pipes

23 and 24 and are in screw threaded engagement with each other -as shown in Figure 3; the lower end kof the tube 34 being in communication with the bottom of the spiral portion 28 by means ot a coupling nipple 35 located within the fitting 32. The upper end oit the 'tube 33 -is connected through the medium of la pipe 36 with the inlet manifold 15 and it is thus obvious that the'heating iiuid from the :inlet inanil'old 15 will pass downwardly through the tubes 33 and 34 then upwardly Athrough the spiral portion 28, then downwardly through the spiral portion 29 into vtthe pipe 24, then upwardly through `the

pipes

24 and 23 and 'through the pipe 31 yto the manifold 17. In this 'manner 'all of the heating units will receive the `heat from the heating fluid after which the heating fluid will pass 'through the iioo'r 10 and out through the outlet "pipe 20. Each of the barrels 37 has a frame 38 mounted therein; said Jframe including a screen 39. A stripper 40 depends within the `screen frame and is made substantially yolre or U-shaped, the upper ends of which are adapted to be attached to braces 41 which are pivotally mounted on posts 42. The braces 4-1 are arranged in a series and have their opposite ends turned upwardly and secured to the spiders 25, as clearly shown in Figure 1. Thus the strippers 4()` are held against rotation. The material to be dried is placed within the screen frames 38 and the barrels are rolled upon the turntables 13; the braces 41 being turned on their pivots, as shown in Figure 2, to permit this operation; it being noted that the spiral members 27 can be moved into an upper position above the barrels by turning the hand-wheels 26 "so that the pipes 24 will ride up on the pipes 23. To insert the drying elements 27 into the material, the Ihand-wheels are turned in an opposite direction and the heating elements will descend into theJ material within the screen frames 38. The pivoted braces can then be swung into the .position shown in Figure 1 and secured by clamping screws 43. and the top ends of the strippers 40 can be secured to the Vunder portions of the braces 41 by screws 44. The turntables 13 are then rotated by any suitable mechanism preferably at a slow speed and the spiral heating element will tend to slightly agitate the material and due tothe absorption of heat therefrom, the material will be thoroughly dried.

The mesh 'of the screens 39 'is preferably made suliiciently line to keep the material, which as previously stated is originally in a plastic state, within the continesv or" the screen trames during the drying operation so that the moisture of the material will be liberated at the outer surface of the frames and pass into the barrel, -I also .preferably employ auxiliary vacuum pipes 45, as shown in Figure l, for establishing additional vacuum within the barrels between the frames 38 and the inner surfaces of the' barrels so as to expedite the 'drying operation.

It will be noted that the heating fluid circulates through the spirally wound portions oit' the heating yelements 27 and the rotation of the material relatively to the spirally woundportions of the heating element will bring new portions of the material constantly adjacent the heating element so that the heat may be absorbed thereby and the material will be kept -in a condition 'to permit the ready escape of the `moisture and since the apparatus is confined within a chamber in which a vacuum or su'ctionis established, Ithe vmoisture will be `quickly removed and 'the material will be thoroughly and uniformly dried.

To remove the heating elements 427 from the dried material which "is in powdered form, it is merely Anecessary to rotate the handuvheels 26 after the braces 41 have been released and swunginto the position shown in Figure 2. It will be noted that after Ithe heating element is removed the barrel with the dried material and ythe vscreen ytlfie'rein can be Aremoved 'from its position on the turntable and by raising the screen out of 'the barrel, theI dried material will remain in the barrel and can be used when needed. The screen after preferably being VCleaned by the strippers 40 of the frame `can be replaced in another barrelfand the operation repeated. I am thus enabled to ldry vmaterial within a number o'f containers and -in this manner the ldryingof such material as above -set vforth is aeilitated and can be accomplished at a low cost and at comparatively great speed. v Y

By arranging the heating 'elementsi27 in spiral form they will easily cut their way into the material without greatly disturbing the mass when the elements are initially inserted and by making the spiral portions of a construction including a wide surface area they will readily permit the absorption of heat therefrom by the material to cause the evaporation of moisture. While I have described but one unit in detail it will be understood that any number of units can be utilized for example as is shown di-agrammatically in Figures 5 and 6.

While I have described my invention as taking a particular form, it will be understood that the various parts of my invention mayV be changed without departing from the spirit thereof, and hence I do not limit myself to the precise construction set forth, but consider that I am at liberty to make such changes and alterationsas fairly come within 4the scope of the appended claims.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is l. Apparatus of the character described including a screenedy member for containing the material to be dried; and heating means adapted to` be inserted into the material within the screened member; substantially as described.

2. Apparatus of the character described including a screened member fory containing the material toV be dried; heating means` adapted. to be inserted into the material within the screened member; and means for effecting relative rotation between the screened member and the heating means; substantially as described.

8. Apparatus of the character described including a screened member for containing the material to be dried; heating means adapted to be inserted into the material within the screened member; means for moving said screened member; and scraping means adapted to scrape the material from the inner surface of the screened member; substantially as described.

4:. Apparatus of the character described including a screened member for containing the material to be dried, and heating means adapted to be inserted into the material within the screenedl member, the heating unit including a spirally wound conduit for a heating fluid.

5. Apparatus for drying material of the character described including a container; a screen frame adapted tohold the material; a heating element adapted to be projected into the material Within the frame; and means for rotating said frame relatively to j the heating unit, said heating unit inc uding a spirally wound portion; substantially as described.

6. Apparatus for drying material of the character described including a cylindrical screen frame adapted to hold the material; and a heating element adapted to be pro jected into the material within the frame; substantially as described.

7. Apparatus for drying material of the character described including a oor having a hole therein; a turntable in register with said hole; a container for said material to be dried supported on said turntable; and a heating unit adapted to be projected into said material; substantially as described.

8. Apparatus for drying material of the character described including a iioor having a hole therein; a. turntable in register with said hole; a container for said material to be dried supported on said turntable; a heating unit adapted to be projected into said material,'said floor being a part of a chamber; and means for heating said floor; substantially as described.

9. Apparatus for drying material of the character described including a floor having a ho-le therein; a turntable in register with said hole; a container for said material to be dried supported on said turntable; a heating unit adapted to be projected into said material; said floor being a part of a chamber; means for heating said floor; and means for establishing vacuum in said chamber; substantially as described.

l0. Apparatus for drying materia-l of the character described including a floor; a turntable located adjacent the floor; a container for material to be dried positioned on said turntable, a screenedV frame in said container; a stripper within said frame; means for preventing relative rotation between said stripper and frame; and a heating unit adapted to be inserted within said screened frame; substantially as described.

11;. Apparatus of the character described including a screened member for containing the material to be dried; heating means adapted to be inserted into the material within the screened member; means for effecting relative rotation between the screened member and` the heating means; and means for establishing suction at a position immediately adjacent said screened member; substantially as described.

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

JOHN F. HUGHES.

Witnesses:

ELIZABETH GARBE, CHAs. E. Po'r'rs.