US1761228A

US1761228A - Packing of carbon black

Info

Publication number: US1761228A
Application number: US288266A
Authority: US
Inventors: Peck Le Roy Ellsworth
Original assignee: Columbian Carbon Co
Current assignee: Columbian Carbon Co
Priority date: 1928-06-25
Filing date: 1928-06-25
Publication date: 1930-06-03
Anticipated expiration: 1947-06-03

Description

I June-3,1930. l LE-RoY E. Pl-:cK 761,228

' PAcKiNG oF CARBON BLACK I 'Filed June 25; 1928 INVENTO ATTORNEY Patented June 3, 1930 UNITI-,2D STATES PATE-NT OFFICE LE noY ELLswoB'rH PEcx, oEnIvEnToN, wYoMING, AssreNon To coLUMBmN can BON COMPANY, or NEW Yonx, N. Y., A conPonArroN or DELAWARE PACKING or CARBON BLACK Application led June 25,1928. Serial No. 288,266.

. A` great deal of diliicult has been encoun tered heretofore in the pac 'ng of lamp black, carbon black and similar extremely light and finely subdivided powders. They cannot be compressed by ordinary means as a large amount of occluded air or other gases is compressed at the same time and in expanding lwhen the pressure is relieved, the powder goes back to its loose readily dusting condition. Tamping is also unsatisfactory. To reduce the volume the occluded gases have been removed by making a paste of the powder and a volatile liquid and then evaporating the liquid to leave the powder in cake form, but this involves the use of a mixing apv pa'ratus and then heat treatment to remove.

the liquid.

I have discovered that by delivering the N material to a receiver and subjecting the receiver to the action of centrifugal force durin and if need be, after the delivery, the .partic es of owder will crowd closely together, thereb orcin out. the air from between the partie es and t e powder may be brought to very compact form with very much greater weight per unit of volume and with less oceluded air. This reduction in the volume for a unit of mass is of special importance in the vshipment and storage of the product and reducesfthe dusting properties during the mixing of the product with other ingredients, but does not prevent the compact mass `from being readily returned to its original light floc- 'culent condition or its dispersion in' rubber, printers ink or other compostions in which carbon black and lamp black are used so extensively. L

' In carrying out my invention I preferably use paper bags as the receivers vinto which the material, hereinafterl referred to as carbon black, is packed, and I mount these bags in suitable receivers so that theyare externally sustained during the delivery ofthe carbon black thereto, and the carbon black may be' continuouslydelivered during the high speed rotation of the apparatus. v

` The material is thusypacked directly in the bags and the mass of packed material will be homogeneous throughout and comparatively free .of occluded gases.

' In the accompanying drawings I have illustrated merely one embodiment of my invention, although it will beobvious that various changes may be made in the details of construction of the various parts within the scope of my invention as defined in the appended claims.

In these drawings:

Ifg. 1 is a top plan View, a portion of the casing being shown in open position and partly broken away; and

Fig. 2 isa longitudinalsection on the line 2-2 of Fig. 1.

In the construction illustrated there is provided a distributing head 10 which may be secured to' a drive shaft 11 ywhich preferably has its axis substantially vertical and driven from the lower end portion by any suitable form of driving means, not illustrated.

'1.he head includes a central chamber 12 which is closed by a bottom wall to which the shaft 11is secured and open at the top for the entrance of the carbon black. This distrlbutmg head has a. pluralit of radially extending nozzles 13, each o which communicates at its inner end with the chamber 12-so that as the head is rapidly rotated and `materialis delivered into the head from the upper side, the material will be delivered through thelseveral nozzles by the action of centrifugal force. The material is delivered from these nozzles directly into containers which are preferably in the form'of 'paper bags 14 suitable for the storage and shipment of the material. The entrance'opening of each bag may be gathered around the end of the nozzle and heldl in place by any suitable retaining means, such for instance as springs 15`pressing resilientl against the outer surface of the nozzle an holding the edge of the bag wall against the outside of the nozzle.

` For supporting the bags in horizontal position and support-ing the outer surface against the ressure of the material against the inner si e of the bag as well as resisting radial movement of the bags yand contents under the action of centrifugal force, I provide each bag with a casing formed of two separable sections. These sections may be of approximately semi-cylindrical form with Ami one ed e and suitable clampsor fasteners21 along t e opposite edge.I Thus the lower .half

of each casing section is held rivid tin res' ect to the distributing head, while the upper alf may be swung to open position as shown at the lower part of Fig. 1 so .that an empty bag may be inserted and a filled one removed.

The rotating parts may be .mounted in .a `suitable casin or shield 22 which serves to cut down win resistance to fthe rotationl and also to protect the workmen incase any parts should break loose during the high speed rotation of the shaft, distributing head and bag casings. v.

The shaft 11 may extend through a. suitable anti-friction'bearin inthe bottom of this casing or shield, whi e the to wall may have a funnel or conduit 23 pro]ecting into or registerin with the -top opening of the distributing be delivered to the latter during the rotating of the enclosed parts.

A portion of this outside lshield or casin 22 is removable to permit access to be gaine to the bagcasings.

1 As illustrated in 22 has two normall Fig. '1 the shield ori-,casing shaped sections 24 hinged at o posite `si es andeach enclosing a portion o the top, bottom and peripheral walls of the shield or outer casing 22. By swinging these sections away from each other as indicated in Fig. 1 one ofthe bag casings will be exposed so that it may be opened. The rotatable parts may be turned a little at a time until the several bag casings are brought into such position as permitsthe -insertion of the'bags andthe reclosingof the bag casings. The sections 24 may then be returned to normal pcsitionand secured -tother in any suitable manner as for ,instance g; a catch 25.

The bearing shown atthe lower `part of Fig. 2 and which supports the shaft 11, con- I stitutes a part of or is mounted the main frame of the machine, and the casing22 may be rigidly secured to this bearingor to any l other suitable part of the frame of the machine so as to hold the casing in position and prevent it from rotating. The funnel or conduit 23 is secured to the casing and depende from the latter, the proportion and positioning being such that it forms' a comparatively close running fit with the rotating head 10.

ame 17, the ends of 'which are Ahigher may be employed.

jspeeded up to thedesired s ead so that the material may"v j 4Delivery .may 'be The driving mechanism for the shaft 11 ymay be such as will -give .a speed depending -upon the extent to which it isvdesired to comlpact lSpeeds in the neighborood `of .1.600 revolutions `per minute or .In the .conse-neem Vlitres-.ami the disvhead has six vnoazles so that six ofthe .bags .may be .filled at the same time,

but it of ooursebelevident that a larger or smaller number Amay be employed.

.In operation thefrotatabledparts may be and a stream of carbon black slowly de vivered to the interior of the distributing head so that it will be delivered vin substantially equal quantities to the several bags. Such air as enters the packer lalong `with the ycarbon black may `pass linto the bags with the latter, but due to the centrifu al action, the particles of carbon i black wi l'foree their way to the bottom of the bag, and the Voccluded air will find its way backout'through the distributing head or between the bag walls and the nozzles, but as there is no stream of the lair goin in exce t such as is occluded with the caiion blac there will be Lno such outflow of air as will carry out with it any objectionable quantity of the carbonblack in dust form.

The rotation may be keptup fora limited period after the delivery of A,powdered material ceases, if desired, to give additional compacting action.

continuous lor intermittent and may start before or while the apparatus is speeding u n The material compacted yin the bags to such density thatnone or little ofthe black will flow outrof the bags after rotation ceases and `the Iremoval of the bags even hough they are supported in horizontal posiion.

In-some constructionsthe shield or casing 22 may fbe' @made of greater hei ht and thel frame members 17 may be 'pivote to the distributing headlrather' than yrigidly secured so that vwhen theapparatus is at rest. the frames will'hang down and the bags will be invertical.rather-thanhorizontalA `tion.

As the apparatus starts -rotating and the speed increases, `centrifugal force would swing the bag containers `out'vvardly to the horizontalposition as shown in Fig. 2.

Havingthus describedmy invention, what I claim as new .and desire to secure by Letters Patent is.:

.1. .A carbpn black packing apparatus, including a distributing head mounted for rotation about la vertical axis and having an inlet at the upper end thereof, a peripherall disposed series of outlet openings, .a pluraly-l ity of-frame members `secured to said head andv extending radially. therefrom, and a plu'- rality ofcas1ngs leach carried by a correspending one of said -frame lmembers and 2. A carbon black each having an inner open end registering with a corresponding outlet of said head, each of said casings including two 'casing sections separable in a plane at right angles to the axis of rotation of said head for enclosing a removable carbon black receiver.

acking apparatus including a distributing ead mounted for high speed rotation about a vertical axis and having radially disposed delivery nozzles and an ax1ally disposed inlet, a plurality of frame members secured to said head, a casing carried by each frame member for enclosing and supporting a paper bag, and means for securing the open end of Ieach bag to the corresponding nozzle.

3. A carbon black packing apparatus, in-

cluding a substantially cylindrical non-rotatable outer casing, a shaft mounted for high speed rotation and projectin into said casing from the bottom thereof, a istributing head secured to the upper end of said shaft and disposed within said casing, said head having an inlet opening in the top thereof and radially disposed nozzles, frame members secured to said head, bag receiving casings carried by said frame members and each including two parts hinged together, one of said parts being secured to its corresponding frame member, means on each nozzle for securing thereto the end of a bag disposed within the corresponding casing, and means in the top of said outer casing for directing the carbon black into said distributing head.

4. An apparatus for filling bags with pulverulent material including a vertically disposed shaft having a head provided with radially extending outlet nozzles, said head being open at the top, means associated with each nozzle for clamping to the latter the mouth of the bag to be filled, and a plurality of casings carried by said head and enclosing and supporting the bags, said casings each having a top section movable to permit insertion and removal of said bags.

5. An apparatus for filling bags with pulverulent material including a distributing head mounted for rotation about a vertical axis and having radially disposed delivery nozzles, a frame secured to said head and hav- 7. An apparatus for filling bags with pulverulent material `including a shaft mounted for h igh speed rotation and provided with a distributing head secured to the upper end thereof, said head having an inlet opening in the top and radially disposed nozzles, frame members secured to said head, bag recelving casings carried by said frame members and each including two parts hinged together, whereby bags may be inserted in and removed from said casings, and means on each nozzle inde endent ofthe corresponding casing for securing thereto the mouth of the bag within Jthe corresponding casing.

8. An apparatus for filling bags with pulverulent material including a distributing head mounted for high speed rotation about a vertical axis, said head having an inlet opening in the top thereof and radially disposed nozzles, a plurality of casings mounted for rotation with said head and each including a section rigid in respect to the corresponding nozzle, but spaced from the latter, a second section hinged to the rst mentioned section, and means for securing to each nozzle themouth of a bag within the corresponding casing.

' Signed at Riverton in the county of Fremont and State of Wyoming this 19t-h day of June, A. D. 1928. i

LE ROY ELLSWORTH PECK.

securing to each nozzle the mouth of the bag in the corresponding casing. l

6. An apparatus for filling bags with pulverulent material including a shaft mounted for high speed rotation and provided with a distributing head secured to the upper end thereof, said head having an inlet opening in the top and radially disposed nozzles, frame members secured to said head, and bag receiviw: casings carried bv said frame "members rsi