US1112980A - Extractor. - Google Patents

Description

J. H. CASTONA.

EXTRAGTOR.

APPLICATION FILED MAY 7. 1912.

' Patented Oct. 6, 1914.

'entre statins 'irren' s JOHN H. CASTONA, OF MOSS POINT, IYIISS'ISSIPPX, ASSIGNOR TO CASTONA IMPROVED PROCESS CO., OF GULFP'OBT, MISSISSIPP, .A CORPORATION OF SOUTH DAKOTA.

EXTRACTOR.

Specification of Letters Patent.

Patented Oct. 6, 1914.

Application-.filed May 7, 1912. Serial No. 895,799.

' Moss Point, in the county of Jackson and steam injection pipes.

land out of said slots and provided with State' of Mississippi, have invented new and useful improvements in Extractors, ot which the following is a speciiication.

This invention relates to an extractor for use in extracting turpentine, resin, etc., fromv wood.

The object of the .invention is to provide an extractor which is simple of construction and eiicient and economical in opera-- tion, which may be easily andV conveniently handled, operated and cleaned with a niinimum .expenditureot' time and labor, and

which is adapted to permit of the use of suitable solvents i'or the extraction of the resin and volatile constituents of the wood and enable products of :thigh degree ot purity to be obtained.

The invention consists of the eatures of construction, combination and arrangement of parts, hereinafter fully described and claimed, reference being had to the accompanying drawings, in which j Figure l is a perspective View, partly .in elevation and partly in section, of'an extractor embodying my invention, Fig. 0

is a vertical section through the top otithe extractor. Fig. 3 is a detail section on the line 3-3 of Fig. 2 through the hinge joint of the. top head or cover. Fig. 4 is a detail section showingr the sealing or joint closing;r connection between the steam supply and Referring to the drawings, l designates the body of the extractor, Which comprises a cylinder having a dished or concavcd bottom head 2 f* d adapted to be closed at its top by a removable head 'or cover 3. This head or cover 3 is provided on its underside adjacent to its periphery withl an annular groove Ll receiving' a packing ringy or gasket 5, which is adapted to bear against an annular abutment or seat ring;r 6 secured to the top of the body. Formed in the edge of the cover at spaced intervals are slots 7 adapted to receive shackle bolts 8 hinged: or pivoted to the body so as to be sivung into Winged clamping nuts 9, whereby said bolts are adapted to be fastened in cover-holding position. Vt'hen the cover is clamped in position the gasket 5 is held crowded against the ring 6, thus tightly closing the extractor against the escape of heat and the volatile elements from the wood and solvent The cover is provided at one side With a lever arm l() firmly fastened theretol in any suitable manner and which formed in its outer end With a socket ll adjustably re- ,ceiving au extension armor rod 12 fixed within the socket by means of a set screw 13. Slidably mounted on this extension arm -is a counterbalancing weight 14 adapted to be secured .in adjusted position by a set screw- The arm l0 is formed with a depending portion 16 provided with an oblon rectangular slot 17 through which extends a block 18 carrying a pivot pin or trunnions 19 journaled in bearings in spaced brackets 20' projecting from the extractor body, `whereby thecovcr 3 is pivotally mounted on the body for opening and closing movements. The counterweight 14 approximately balances the Weight of the cover, so that the latter may be. opened and closed with a 1minimum amount of effort on the part ot' the operator. By adjusting the arm l2 in or out and varying the position of the weight 14:, it is evident that the ounterweight leverage may be varied" as desired. Supported by the arm l0 is an adjusting screw 21 Which engages thejblocjk 18 and is provided with a hand Wheel :22, whereby the arm and cover may be adjusted on the pivotal support ,to regulate the seating of rfi the gasket 5 against the abutment\6, as Well as to permit the cover to "be pried up Without injury to the gasket, in the event that the lat-ter should stick to the abutment 6.

Arranged within the extractor body is a removable perforated cage or which is ot` somewhat less diameter than the .body to provide an intermediate space 24 for the discharge of the volatile constituents ofthe wood and vapor from the solvent and passage of the same to a condenser through a goose-neck outlet ordischarge pipe 25 provided with a controlling valve 26.' Said cage or basket is. also of less length than the body and rests at its lower end against supporting lugs or members 27 arranged some basket 23,

comprising a central section 30 and an annular Series of segmental sections 31, hinged or pivoted to said bodyas at 32. The body 30 is strengthened by a reinforcing plate 33', to prevent it from buckling under the Weight 5 of the charge of material resting thereon, and the portion 29 and pivoted sections, 3l are perforated to permit of the gravitative discharge of the resinextracted from the charge. Pivoted latches 34 are carried by the portion 29 to engage under the pivoted sections 31 and hold the same clamped against the'lower edge of said portion v29, whereby the bottom of the cage is held in position. By retracting theatches the bottom as a whole may be released to permit the parts .of the cage to be disassociated for cleaning or repairs, or one or more of the pivoted sections may be dropped for the discharge of the contents of the cage.

yRising from the body is a bracket 35 'and supported at its lower end by said body and bracket is a perforated steam supply pipe 36 which extends centrally within and to the top of the cage and is provided at its upper end with a frusto-conical packing head 37 threaded or otherwise adjustably mounted thereon and adapted to be held in adjusted position by a nut 38. This packing head is adapted to engage a gasket 39 mounted upon the bottom of the cover 8,said gasket being secured to a reinforcing plate e() fixed to the cover by means of a ringshaped retaining member 4l having a flange projecting beneath and confining the gasket. The surface of this flange is beveled to form a conical opening to receive the conical packing head and to enable the head to seat steam-tight against the gasket. The pipe 30 projects through the head and through the construction described communicates with the delivery end of a steam supply pipe 43 fixed to the cover 3 and extending through th'e plate Ll0 and gasket, said pipe being provided with a controlling valve 44 for controlling the flow of steam to the pipe 3G from a suitable source of supply. This construction provides' a means whereby the pipes 36 and 4:3 are brought into registering position when the cover 3 applied, while enabling the cover to be opened without interference from the pipe 36.

Thepipe 36 is provided for distributing steam uniformly through the mass of chi s or commin'utod Wood contained Within t c iaiaceo cage,.whereby the volatile constituents of the wood are driven olf and the rosin extracted, such constituents passing with the steam into the space 2l and thence to the condenser through the pipe ln order to enable a solvent to be employed'in connec-L tion with the steam for thepurpose ofv extraction, a coiled'spray pipe 45 is arranged beneath the cover 3 to distribute the solvent uniformly to the 'charge of Wood, and this 7 coil `connects with a conducting -pipe 46 suitably mounted upon the cover and extending therethrough and provided with a valve 47 for controlling the flow of the solvent to the coil from a suitable source of' supply.

The rosin extracted from the Wood and passing through the perforated bottom of4 the cage flows through a fine screen or grating 48 supported by a iange or lugs i9 secured to the body l immediately above a partition plate or false bottom 50 arranged. between said screen and the bottom 2. This supplemental or false bottom S0 is dished like the bottom 2fand arranged in spaced relation thereto to provide a heating chamber 5l and a collection space or chamber Extending through the side of the body l into the chamber 52 between the elep ments 48 and 50 isa perforated steam supply 95 pipe 53 providedon the exterior with a controlling -valve`54,A through which pipe steam may be supplied to the chamber 52 to keepr the extracted rosin heated for a free discharge and prevent it from hardening on the 00 bottom 50. The dished form of the bottom `5() provides a sloping surface leading to an annular gutter or channel 54 into which the rosin flows, and from which it may be Withdrawn througlrone or more drain pipes 55 105 having a controlling valve 56. A steam supply pipe 57 provided with a controlling valve 58 communicates with one side of the heating chamlier 51 for the supply of steam thereto, and discharge pipe 59 provided 110.

with a controlling valve 50 is provided at the diametric'ally opposite side of said chamber for the exhaust of steam and discharge of the water of'condcnsation. The dished form of the bottom V.2 also provides.

a sloping surface leading to a depressed gutter or channel I(il `whereby the drainage f off of the water of condensation is facilitated. Arranged in the pipe 57 between the valve 58 and the body lis a gage 62,Where- 120 by the pressure of' the steam contained within the chamber y5l may be determined at any time. Gages 63 and.` 64 are provided near the top and at the bottom of the body l to respectively indicate the normal maxi- 1,25 mum level of the liquid solvent inthe ex? r tractor and its'minimurtideVel'Whenit has been evaporated and exhausted by the action of the steam. The body l may also be provided with a thermometer or temperature gage G5, whereby its internal tempera- I ture may be readily ascertained at any time in the extraction operation.

In operation, the cage containing a charge of suitably divided or comminnted wood is placed within the extractor l4 and the cover closed to hermetically seal the extractor. The' valve in the steam supply pipe then opened for the flow of steam through the perforated pipe 3G and its distribution throughout the mass of the material, whereby the volatileconstituents and resin are freed, the volatile constituents passing with the steam through the pipe to the con denser, while the rosin gravitates downward into the chamber The valve 5-1- in the pipefr may be opened when necessary or de sirable to augment the heat at the bottom of the extractor to keep the rosin in a liquefied condition and facilitate its discharge through the'pipe 55, ne Well to prevent it from becoming deposited in a har dened condition'on the upper head 50. It deeirod. steam inay also be admitted into the chamber 5l to augment the ten'iperature to a still higher degree and n'iaintain an eventeniperature throughout the extractor, by which all ot the volatile constituents', resin` etc., contained in the wood will be driven otl' and obtained in a rapid' and ccoinunical manner. It it is desired to employ a lsolvent. in theproccssl ot' extractil'Jn, the 'alve 4T is opened to permit a suitable solvent to spray into the top, of the cage through the coil l-), so that the .solvent will percolatc tlfirougrh the mass of the material and will be vaporized with the volatile constituents of the wood and discharge with the saine through the pipe 25. ln the use of such an agent, the intia'iduction of steam into the chamlaxrs 5l and prevents the solvent from remaining` in liquid condition at the bottom o't' the extractor and cllccts its convergence into vapor. so that the turpentine and other volatile constituents` will be discharged Vl'or recovery in highly pure condition. rttcr the charge contained within the cane has been subjected to the processbf treatment` the valves are closed to cnt dit the flow ot' steam or solvent to.thc extractor` the cover Il swingtopen and the cage with its contents removed, that upon rctractin'g the latches Si therefnse may be discharged and the caer placed in condition for subsequent usc;

The material adyai'itageof the construc- .tionoi extractor disclosed resides in the fact that the material is subjected to an even degree of` heat throughout-and the resin prevented from .clinging in thebottom of the extractor, whereby pure volatile products are"obtained'.andthe parts of the extractor maintained in such condition `that they may be radilypand conveniently cleansed When- By mounting the cover 5 1 in the described manner, it inay be easily and conveniently handled and the operation carried out without requiring' the service of more than a single attendant, with resultant economy.`

Havingr thus described the invention, what I claim as new i.'sj:- i

1. An extractor ot the character described comprising a vertically dispofied outer vessel haring an extraction chamber, a Vapor out let at its top, a bottom heating chamber, and a` bottom rosin collection space between the extraction chamber and heatiner vchamber and in communication with the former and out of communication ivith the latter, means for heatingsaid heatingr chamber, a receptacle for the material being treated disposed lonnitudinallftY within the extraction chamber` said receptacle having a perforate bot- -tom and sides 'and spaced from theo/liter vessel tor the escape of vapors into the in terveningr space, a pipe or tubev extending` vertically and axially through the receptacle, said pipe beiner pertorate throughout its length for the injection of an extracting agent throughout the mass of materialcontained therein, and means .for supplyingr thel extracting agi'ent to said perfor-ate pipe or tube. i

An extractor of the character described comprising* an extracting vessel, a. cover 'for closing' thc upper end thereof, said cover havingl an openingr therein', a steam supply p ipe, fitting within said opening', a retaining ring arranged upon the under side of the 100 corcr and pro'vidcd with Ya conical socket, a ."ahng gasket secured to the-cover by said retainingr ring and exposed within said socket. a removable perforated cage arranged within the vesstel and i-n spaced re- 105 lation thereto, a perforated steam injection pipe secured at 'its lower end to the bottom of the cage and extending npwardlyto t'he top ot the cage, the upper end oi said injection pipe being,r adapted to enter s'aid socket in the retaining. ring' and register with th'el eteani'supply pipe when the cover is'closcd, and a conical enlargementupon saidsteani injection pipe adapted for sealing,r contact with said gasket socket. l

2i. An extractor of the character described comprising an'.extractingvessel open at. its top and provided at its bottom within pair ot supcrpoeed'heads forming, a steam'cl'ianb 120 ber and a collection space above the samen perforated cage supported `within the vessel and in spaced relation theretol and teiininatinpfabove said collection space, steam snpj plyand exhaust pipes communicating with 125 said steam chamber, a steam injection coil arranged within the collection space :rnd between the saine and `the lower endiof the perforated cage, means for closing the upper ends of 'the vessel and perforated cage, a 130 and to enter 'said conical 115 perforated' steam injectionl pipe supported at its lower end by the cage'and extending upwardlythereinto, and a steamsupply pipe carried by the cover and adapted to register with the perforated steam injection pipe when thecov'er is closed. v

4. An extractor of the characteidescribed comprising an extracting vessel open at its `upper end and provided at 4its loweil end withw a pair of spaced superposed concavon convex heads, forming a bottom steam cham; ber closed againstcommunication,with the vessel and al collection space above said chamber and in communication with the vessel, steam supply and exhaust pipes communicating with the steam chamber, a

l valveid outlet for the rosinl communicating spaced witlrthecolle'ction space', an outlet for the vapors at the upper portion of the vessel, a perforated cage support Within and in spaced relation to the vessel and terminating above said collection space, a cover for closing the top of the vessel, a perforated steam ingection pipesupported at its 'lower end by the cage, and a steam supplypipe extending through the cover and adapted for connection with the perforated injection pipe when 4the cover is closed` 5. An extractor of the character described comprising .e vessel open at its top and provided at its bottom with--a..p air of steam chamber out `o`f communication with the vessel and an upper collection chamber in communication with the vessel, steam supply and exhaust pipes communicating` with the steamk chamber, an outlet for the rosin communicating; with the collection'space, a

perforated cage supported within and in spaced relation to the vessel and terminating above the collection space, a perforated space, a cover forclosing the top of the ves-,

' exhaust pipes chamber, a valved outlet for the dresin com-r 'let for the vapors superposed heads forming a lower.-

mia-,eso

steam coil disposed" within the colsr sel, ay perforated steam injection pipe sup ported at its lower end by ythe cage and eX- tend-ing upwardly thereinto, anda stemav supply pipe supportedby the cover and adapted forv connection with the perforated4 steam injection pipe when the c over is.

closed.

6. An extractor ofthe character described l comprising an extracting vessel open at its upper end and provided at its lower end' with a pair of spaced superposed heads, forming a bottom steam chamber closed against coinmunication with the vesseland a collection.

Space above said chamber and in'commun cation with the vessel, the steam supply and communicating with the steam municating with the collection space, an' out-f at the upperportion 'of the vessel, a cover for closing the top of the ves-V sel, a perforated cage removably supported Within and in spaced relation 'to the vessel and terminating above said collection space,

-a perforated steam injection pipe arranged Within the cage, a steamsupply pipe carried by the cover and adapted for communica'- l tion with said injection pipe when the cover is closed, a perforated steam coil disposed within the collection space, a perforated plate or diaphragm disposed coil and the lower end of the cage, and a perforated coil carried by the cover and prel jecti-ng into the top of the cage. .l

` In testimony whereof I aflix my signature in presence of two witnesses. 1 y

,JOHN H. CASTONA.

Witnesses:

WILLIAM E. THOMAS, FRANK LINDNER.

between said y

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