US1625919A - Centrifugal separator - Google Patents

Description

April 26 1927.

T. C. THOMSEN CENTRIFUGAL SEPARATOR Fiied July 9, 1926 I z I 12/41/27??? [we/afar. L7 homocs Christc'anT/vomsen P fltkorney.

Patented Apr. 26, 1927.

THQMAS CHRISTIAN TEOIVIfiEN, 0 CGPENHAG'EN, DEBIM" KQEFQEID, T-IAUBERG, MAR-STRAND 81; I'IEIJWEG; AKTIEElIJE' HAG-EN, DENMARK.

SEGNGB TO MESSRS.

lllTAll, 0F COE'EN- CENTRIFUGAL SEPliRATOR.

Application filed July 9, 1926, Serial No.

Centrifuges are often employed for clean inp,- various liquids and for removing substances suspended in them. Thus centrifuges are frequently employed in chei'nical cleaning; establishments for cleaning the used benziuc from particles of cloth, dust, dirt or the like solid substances suspended in the benzine.

'lfhese centrifuges, however, have the disadvantage that the solid substances which are readily separated. collect at certain points in the drum oi the centrifuge where by the working; capacity of the centrifuge greatly reduced. It is the object of the esent invention to ensure the separation of the solid particles in all parts of the drum, so taut these particles separated will collect in an even layer oi somewhat the same thickness along the inside of the wall of the drum, wheretrom such layer is easily removed when the drum inset is provided with a bottom outside ridge having the shape of a scraper and passing along the in side of the drum when the inset is "aised.

The invention is shown in the accompanying drawing, in which 1 is a vertical longitudinal section, partly broken away, along the line ll in Fig. 2. i

2 shows the centrifuge drum with inset but after the upper part has been re moved.

Numeral 1 indicates the central guide tube of the centrifuge bowl and is adapted to seaton the shaft oi": a rotor (not shown). The bowl or drum of the centrifuge is preterably formed of a frusto-conical bottom 2, a cylindrical outer wall 3 and a frustroconical upper wall 4, the walls 3 and 4 being removably secured together by the clamping nut 5.

Centrally disposed in the drum or bowl is an inset 6 adapted to rotate therewith and having a central opening 12 in the top thereof. The bottom of the inset 6 is continued outward as at 7 and abuts the wall 3 of the drum, thus serving to scrape the inside surface of wall 8 when the inset 6 is raised.

Inset 6 is provided, in the present e1nbodiment of the invention. with pairs of imperl'o ate walls 8, each pair of walls forming a cell 10. In the drawings I have shown four pairs of radial walls, but it will be understood that this number of pairs of *alls may be varied and that the walls need 121,402, and in Denmark March 8, 1926.

not be radial. (ltnninluiication between the top of the bowl and the space between the cells is allorded by opening 12 in the top of the inset and openings ll .in the vertical wall of the inset Each cell is provided with an opening 9 in the rear wall thereof. which opening is preferably located at the bottom of the wall to be as ren'iote as possible from the openinpgs 14. in the inset 6. Each opening 9, therefore, terms a means ot communication between the respective cell 10 and the space or chamber 11 i. unediately behind the cell.

The liquid to be purified is introduced into the bowl tlurou zh the opening 12, and as the bowl is rapidly revolving, the body of liquid will a uue the term of an apro ;irnately vertical cylinder covering the inside of the wall 3 of the bowl. The substances suspended in the liquid will be deposited over the entire inner surface of said wall 3. As more and more impure liquid s introduced into the bowl, the thickness of the wall oi the liquid cylinder covering the inner surface 01 the wall 3 will be increased until the addition of more impure liquid will force out through the opening 13 in the top of each cell some of the purified liquid.

It will thus be seen that the liquid, after it has been purified in the spaces or chamber 11, must travel through the openings 9 and up through cells 10 and out of openings 13.

In this manner. the complete removal of the substances suspended in the liquid is ensured, and the suspended material deposited evenly eye the entire inner surface of wall 3 whence it may be easily removed.

It is evident that many changes may be made in the specific construction described. and the invention is therefore to be limited only by the scope oi. the following claims.

Having now described my invention, what I claim as new and desire to secure by Letters Patent is z- 1. A centrifuge for ren'ioving suspended substances from liquids. comprising, a bowl having an opening; centrally disposed in the top thereof, a plurality of pairs of walls extending out-ward troin the center of the bowl, each pair of walls forming a cell, and an opening in the rear wall of each cell communicating with the space between the cells.

2. A centrifuge for removing suspended substances from liquids comprising, :1 bowl having an opening centrally disposed in the top thereof, an inset in the center of the bowl, a plurality of pairs of Wells extending outward from the inset, each pair of walls forming a cell, and an opening in the rear wall of each cell communicating With the space between the cells.

8. A centrifuge for removing suspended substances from liquids comprising, a. bowl having an opening centrally disposed in the top thereof, an inset in the center of the bowL a plurality of pairs of Wells extendin o; outward From the inset, each pair of Wells forming a cell. communicating; through 15 an opening in its top with the opening in the howl top openings in the inset toruiliug means of coinnmnication between the bowl top opening and the space hetn'een the cells, and on openingin that portion of the rear wall of each cell remote from said inset openings and connnunicz'xting with the space hetween the cells. v

In testimony whereof atlix my signature.

THOMAS CHRISTIAN 'LHOMSEN.

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