US2538403A - Compression extractor - Google Patents

Description

2 Sheets-Sheet l T. S. WATSON COMPRESSION EXTRACTOR Filed Oct. ll, 1944 Jail. 16, 1951 mm N Qu. M ww Jan., 16, 1951 T. s. WATSON 2,538,403

COMPRESSION EXTRACTOR Filed Oct. ll, 1944 2 SheetS-Sheet 2 INVENTOR. www (04130.

Patented Jan. 16, 1951 Thomas S. Watson, Milwaukee, Wis., assigner to Huebsch Manufacturing Company, Milwaukee, Wis., a corporation of Wisconsin Application octoberl 11, 1944,., s2eria1No- 558,255A

The invention relates to compressionextractors`v and more particularly to that type ofv extractor in which fluid pressure exerted against a flexible diaphragm compresses the material operated upon between said diaphragm and anV apertured casing to extract liquid from said material. Exntractors of this kind have been found to have advantages for extracting water from laundry and' also according to this invention are used for reducing the liquid content of brewerymash,v so that the waste mash solids may be'used as a feed product. These extractors may also be usedl inV other arts or processes where reduction of the liquid content of a compressible material desirable. y

`The object of the invention is to provide a newl and improved arrangement' for expeditiously carrying out theextraction cycle especially where large quantities of material such as brewery mash arey being handled.

v"'I'he invention further consists in' the several features hereinafter set forth and more particuj' larly defined by claims at the conclusion hereof.l

In the drawings:

Fig. 1 is a'vertical sectionalview taken on the line I-l of Fig. y3; v

Fig. 2 is a detailed vertical sectional view taken on the `line 2-2 of Fig. 3;

Fig. 3 is an elevation View of a tilting type of compression extractor associated witha loading means therefor and with controls'used in its cycle ofVV operations, some parts being shown in section;`

Fig. 4 is a. detailed vertical sectional View through a portion of the cover.

In Figs. l to 3, inclusive, I have shown a structure` more particularly designed for extracting liquids from semi-solid materials, such as brewery or distillery mash, which has a high moisturer content but which contains valuable by-products.

Referring to Fig. l, the numeral 4l designates a. casing or container having a grooved rim 42 at'v its top and an opening 43 in its bottom connected. by a pipe 44 with a drain and supply pipe ttingr. 45.V The container 4l has a wall portion 4l provided with trunnions 45 `iournalled in a frame 41, so that the container can be tipped to discharge Y its load. The tting 45 has a tapered flexible .l rubber coupling 48 within which the tapered end of the pipe 44 ts when the casing is in operative position but which permits automatic release; of this connection whenrthe container is tippedto the dotted line position shown in Fig. 3.

A bag 49 of rubber composition or other 'suitable exible material fits within the container,4 and its rim 56 is adapted to t inthe groove in the rim 42, and it is clamped in this groove by a clamping ring l securedto the rim 42 by screwsv or other suitable fastening means, saidfring 5l, forming the base of a tubular casing extension 52. 1 This casingextension 52 has an aperturedwall.,

jis-

2 Claims. (Cl. 10U-Q50) portion 53 spaced from provide a temporary drain chamber 55 having 'a delivery opening 56. The wall portion 53 has the top rim 51 which has an annular recess 5 8 formed therein in which `an endless rubber tube 59 is mounted, said tubev when inflated'with pressure fluid acting'on said rim 51 and airing '65 secured to the cover 6i (see Fig. 7) by screws 62 to pre-l' vent the escape of fluid from the joint between the'cover and the casing. Fluid pressure is applied to the tube 59 by connectionrthrougha pipe (i2-withv the pipe 44, so that when the high pressure fluid is introduced into this pipe to raise I the bag 49, it willalso'cause the tube 59 to exert a'sealingp'ressure as above described.

The cover 6l has.v a topportion 63 spaced from the container and'associated with an apertured linerVv member 64 suitably spacedV from said topA vportion by spacers 64 and having an 'edge clampedwith the ring 6U to' the cover by the screws 62. As' thesolid particles of the spent mash are relatively fine or small, the apertured' portions of the casing 52 and the cover member'l .Y 6 4 are covered with a lter cloth, screen, or other filtering element 65, that for the extension being secured inposition byspaced clamping rings 61 and screws 68 While that for the cover 6l being secured between the liner 64 and the ring ylill.

In Fig. 3, the cover El has'a semi-cylindrical locking flange 10 similar to the ange 1| shown in Fig. 1 and engageable with the rim 55 of the wall 4I', and the casing has an semi-cylindrical locking flange 1l shown in Fig. l engageable with the top portionof the cover 6l to hold the coverl in 'closedVV position or permit its Vsliding movement to open position on xed rails 12 suitably mounted onf the frame 41, said cover having the wheels 13 riding on said rails 12. As shown in Fig. 3, each locking. ilange 10 and 1! extends around onehalf of the top of the container.

For charging the casing I have shown a hopper 14 having a. tubular llingextension 15 entrance towhich is controlledl by a butterfly valve 16 and exit from which is controlled by a shut off of any suitable constructionbut preferably of the for-m` 'shown in Fig. 2 in which an externally controlled rubber diaphragm `valve 11 is used'toV shut oil the passage of the semi-huid mash between said ldiaphragm and the wall 13 of a delivery spout 19. lThe pipe fitting l5-has a valve 6i] controlling passageof vthe operating fluid from the pipe 45 to adrain passage 8| and a valve 82 controlling passage of the high pressure operating uid from thesupply pipe 83.

As shown in Fig. 3, the valves and 82 are of. the rotary type, normally closed byfflA spring 84 land opened by anelectrically operated solenoid 85 whose supply :circuit connections include. a suitable electrically operated timing switch 8 6.

`the wall portion 4|"to cylinder 89 whose hydraulic circuit 89' is con-Y trolled by a four way valve 90 which` isclosed by a spring 9| and opened by an electrically oper` ated solenoid 92 whose supply .connections yin--A clude the timing switch 86.

rotary hydraulic motor 93 carrying -a gear 94 meshing with a gear S5 on an internally threaded shaft or nut 96 in which a screw shaft secured of the .diaphragm 17| .secu-red thereto tomove it Y into .orion-toi. .closing position. The operationo the .hydrauliccircuit 93' for the .motor 93 4sfcizntx-S trolled .by .a .tou-r .way valve- -S whic-hl closed -by a-spring -99 and .opened by an :electrically ,ope-1'- ated solenoid ien. whose supply connections cinclude the timing switch ,85.

For. moving .the coverv to. .open or closed posi-z..

tion I provide a double .acting hydraulic motor cylinder .Il .havingits ,operating .piston lzcone nected to the cover .and whose hydraulic circuit |01. is .controlled .by a four way 'Valve |-03which is closed bya Yspring maand openedl-by-an elec.

trically .operated solenoid |85 whose supply-conv1 1eci,ions.;'include the timing. switch.

-For `tipping-.the loaded casing I moi-inta gear |86.. on .oneof the `trunnions .46 and mesh with a segmental gear .|67 pivoted .on a shaft |.0`8. andi.

operated .by a crank arm |09 `operatively connected to the plunger ory piston rod kIII) of a double'acting hydraulic motor cylinder I whose hydraulic circuit is. controlled by a'ou'rway valve ||2 which is closedby a spring Il?.4

and opened by an electrically operated solenoid |14 whose supply .connections include the'timing switch B6. A

The hydraulic supply circuit I |5.in which the valves '98, 98, |53, and |12 are disposed :includes asuitably driven pressure pump I I6 and asump or feed chamber I I'I.

`All the solenoids have one of theirv terminals connected with one electrical supply conductor H8 while the other conductor IIB connects with` theswitch vt6 which through the conductors |28, |21, |22, l23, |24, and |125 selectively distributes the supply current to the solenoids 85, 92,1"0'0,

in its tipped position the casing may discharge the dehydrated material into any suitable recep tacle such as the hopper |26,

'jWith the above described Istructure ferred c yc-le'oi operations is, as follows: While the casing il is in inverted position and the contents are being discharged therefrom, the valve 'lf'l is closed and the valve 18 thenopenedto allow the material from the hopper "I4 to ll'the extension i5.

solenoid to operate the valve 98 so as toV supi' ply `operating fluid to the motor 93 to rotate the samerand open the Avalve TI and to'keepv this openV until the casing 4I receives its: .charge. Thereafter, thenspring 99 moves the 'valve' 983110 al position to 'reverse the motor '-93 land more their' the pre- Thereafter,V the switch 86 causes the solenoids H4 and 92 to operate :the'valves |12;VH

4 valve 'VIr to closed position. As the valve 11 closes, the` switch 86 closes the circuit to the solenoid |85jwhichtoperates the-'valveyi to cause the nitor 18|. to move the cover 5| over on top of the casing to a closed and locked position. There- -xafterjfthe switch 86 closes the circuit through conductor |20 and its solenoid 85 to open the valyegBZ (the valve 88 then being closed) and @.allowapressure fluid to enter the space between vilo; the; bottom of lthef'casing 4| and the bag 49 and For operating the valve 71 I show a reven'sitrie 'orpevsaid bag together with its contents upwardlyjfthussqueezing or compressing said contents between the bag and the apertured walls 53 and the opl of the cover so as` to force the liquid l5 content of material through the filtering elements -BSf nd into thedrainagespace55. .After-a. prevdete mined period .the valve 82 is closed by thet 'spring;..84 A.andthe switch `Eiicloses tha-circuit T sthough-- conductor |2| and its solenoid-.85 to -29-opengthedrain.valve to allow the pressure iuidto .drain out of` the casing 4I through the pipegl.. Thereafter, the .motor 10| is operated through the switch 85, solenoid |85, and valve .lftomove the cover 6| to -openposition1 and 2'5. .then-:thc motor ill is operated through the switchf 85, solenoid |44, andvvalve ||2 toswingthe. casi-ng "4 to `dumping position and the dehye dratedmaterial is discharged therefrom into the .hopper |26 while the valve 'I1 is closed through' 30v thefoperation of the motor S3 and the valvevi. is opened'. through :the operation voi the :motor 89 toiillr-the extension '15. Thereafter, the cycle is repeated :Tlie above-'arrangement provides an eXpedi-' tious extraction of a considerable amount of the liquid content of spent mash or similar materials at a cost ton-lake .the saving of the solid cont-ents of such materials .as a by--product profitable.

It, will be noted that the complete' casing lis '40 formed by the lower part solches-4| and by an upperpart or extension 52 and that the bag v49 is: anchored or clamped at-its rim between these twoparts orsubstantially Amedially of the. com--v plete casing.

Ildesire it to-be understood that this invention is .not to. be limited to any particularV form or ar-Y rangement of parts except insofar as suchiimitaf tions are'included in the claims.

What I claim as myinvention is:

15in adevice'of the character described, the Acombination ofl a compression extractor mounted for Il tilting movement and having connections at its .lower end with a source of pressure fluid sup-1 ply and a'ldrain connection, valves for controlling iisaidpressiire' flui-dsource connection landsaid drainV connectionrespectively, means for tilting -said extractor to an inverted discharge position and to va filling position, a removable cover for. said extractor, means for moving said cover into 'mit and out of closing position, iilling means for said extractor comprising a chamber having an outlet valve, meansfor operating said outlet valve, and timingme'ans for controlling the operation vozf said-last..named valve, ysaid cover moving means, 85.-*'1said extractor tilting means, and said pressure supply valve and drain valve in sequence. 2.In a device of the character described-the combination `oi a compression extractor mounted for tilting movement and having connections at 7.0.. its lower Aend with a sourceof pressure uid supply and fa. drain; connectionyalves for controlling said .pressure .fluid source connection and said-v draiirconnection respectively, means for tilting said extractor. ...to an inverted; discharge position .75;fand9to-zaf1lllinga position, -a rencor/ailleA cover for;

said extractor, means for moving said cover into and out of closing position, filling means for said extractorfcomprising a chamber having an inlet Valve and an outlet valve, means for operating said inlet and outlet valves, and timing means for controlling the operation of said last named valves, said cover moving means, said extractor tilting means, and said pressure supply valve and drain valve in sequence.

THOMAS S. WATSON.

REFERENCES CITED The following references are of record in the le of this patent:

UNITED STATES PATENTS Number Name Date Re. 19,838 MCKinstry Jan. 28, 1936 11,455 Grant Aug. 1, 1854 658,588 Reynolds Sept. 25, 1900 Number Number Germany Sept. 6, 1937

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