US1420153A - Hydration apparatus - Google Patents

Description

J. C. SCHAFFER.

HYDRATION APPARATUS.

APPLICATION FILED MAR 26, 1917.

Patented June 20, 1922.

3 SHEETS-SHEET I.

N I) "I l [I I 4 ?i I? I l al tozmm J. C. SCHAFFER.

HYDRATION APPARATUS.

APPLICATION FILED MAR 26,1917

Patented June 20 1922.

3 SHEETS-SHEET 2.

.I. C. SCHAFFER.

HYDRATiON APPARATUS.

APPLICATION FILED MAR. 26. 1917.

XAQQ 1 5 8., I Patented June 20, 1922.

3 SHEETSSHEET 3.

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U l t ll a l Jenn c. senarrna, or rrrrnr, onto, nssreuon no scnanrnn nneinnname a nourrninrir co, or rrrrsennen, rnnnsrnvnnm, a com oaarron or renn- SYLVANl'i-l.

To all whom it may concern:

Be it known that l, JOHN C. Sonarrnn,

a citizen of the United States of America,

broken away disclosing an apparatus for use in carrying out the invention;

nig. 2 is a fragmentary side elevation of the feeding device;

Fig. 3 is a section on the line Ill-Hi big. 2; p i

lBig. i is a fragmentary view of the discharge device;

Fig. 5 is a plan view of the spray devices of the top section or chamber;-

lFig. 6 is a vertical section through the upper bearing of the hydrator showing the circulating system;

Fig. 7 is a fragmehtary perspective view of a corner clearing plow for a movable platform;

Fig. 8 isa fragmentary perspective view, of a corner clearing plow, fora stationary platform;

. Fig. 9 is a detail view of one of the ad justable clearance material agitating and progressing plows; an

Fig. 10 is a perspective view of a cone clearing plow. V

The hydrator embodies the main housing 1 shown as cylindrical, which carries thereover the feedinc device including the hopper 2 delivering to the endless conveyer /or belt'3 to efi'ect delivery thereby of a weighed uniform mass of material continuously to the hydrator. llhis uniform weight of material may be adjusted according to the determined rate desired by manipulation of the scale beam d.

Driven simultaneously with this continuous feed .device for the supply of uniform weight of the material fragments is the moisture supply device being actuated there- HYDRATIUN APPARATUS.

Specification of Letters Patent. Patented June 241), 5922,

tlontinuation in part of application Serial No. 83,2 l-1, filed march 19, 1916. This Serial Ito. 1573M.

application filed March from by the connecting rod 5 the throw of which may be adjusted as desired by the positioning of the wrist pin 6. This varied reciprocation eifective for the piston rod 7 determines the feed volume of water supplied from the liquid measuring cylinder 8 to the spray pipe 9 extending centrally of the top of the hydrator housing 1 that the branch 10 may deliver to thd chamber 11 for passage therefrom through the rectangular spray 12 and radial sprays 13, 14:, embodying pipes with series of perforations therein. This chamber 11 is a water circulation cooling chamber for the bearing 15 engaging the upper end of the rotatable central shaft 16 of the hydrator.

The branch pipe 17 may supply water directly to the friction faces between the bear ing 15 and the shaft 16 for film lubrication, this waterpassing therefrom over the cone 18 to assist in moistening the lime or other material being treated I This material supplied from the belt 3 of the feed device enters the scroll conveyer 19 driven by the shaft 20 from a source for operation simultaneously with-the driving of the water measure and the material weighing belt. 'lhis scroll conveyer 19 has the arch 20 for its upper section, while the lower section conforms to the curvature of the variahle'pitch scroll. Accordingly, when the material fragments are supplied thereto, suchmaterial in this conveyer operates as a seal in precluding escape of gases from the hydrator housing- 1. The discharge from this conveyer 19 into the housing 1 is by the chute 21 centrally of the rectangular spray 12 so that the falling fragments are immediately thoroughly mixed with water before they reach the top revolving platform 22 carried by the shaft 16; Should this water su ply from the spray 12 be insufiicient for t e desired hydration, the additional spray arms 13 and i i may be supplied: in Fig. 5 there isagainst movement. Pivotally connected to the stems are the arms 27 fast with which may be the plow plate 28, the clearance of which may be adjusted as to the platform by the plow arm engaging clamp for chain 29 extending to the hook 30 on the stem 25. These plows may have their angular position varied as desired to determine the progress of the material durmg hydration and agitation stages for covering the entire platform region.

The hydrated material is more fluffy and accordingly in the agitation incidental to the relative movement of the plows and platform works to the surface of this ma terial. The retarding flange 31 on the platform 22 serves to detain the coarser un hydratedor unslaked portions, while allowing the more thoroughly slalred to work over this flange 31 and fall upon the stationary platform 32. The platform 22 carries on its under side theradiating arms 33 having Q plows 28 to progress this material from the outer edge of the platform 22 in the opposite direction, or inward, to spill cen trally therefrom upon the cone etand rotating platform 35. These stages of altonating travel are continued throughout the downward course of tie material in this housing 1 untilfinal delivery from the lower platform 36 by the chute 37 to the scroll conveyor 38 for delivery of the slalred or finished dried material.

The scroll conveyer 38 is driven from the sprocket wheel 39 by the sprocket chain 40 from sprocket wheel ll on the shaft d2,

3 which shaft -l2 carries the main drive alt) sprocket 4:3.

Un this shaft 4-2 is the bevel pinion t l in mesh with the bevel gear on the shaft 16 driving the various movable platformsand the plows of these platforms sustaining arms.

Provision is made that the machine or hydrator may be self-cleaning throughout thereby avoiding any calling of stock and its consequent interference with the uniform operation of the apparatus in the producis greatly improved b tion of a standard product of superior quality. Tn this connection the outer or retardin flange 31 of the moving platform has its angle cleared of stock by the plows 46 mounted upon the brackets 4:7 carried by the housing 1. The corner clearance for the stationary platforms is effected by the plows 48 carried by brackets lt) connected to a pin 25 carried by a movable platform arm, The cones are cleared by the plows 50 mounted on the carrying brackets 51 fast with the stationary platform arm support. i i

. The superiority of the product, especially in certain calcium and magnesium hydrates the elimination of 1116113" gases, as air, an the maintenance of a ras v serve for clean-out when too strong draft has drawn lime dust into the stack:

lVith the steam as a blanket trapped in the upper chamber or chambers where the mingling or mining occurs'in the first stages and the agitation for thorough hydration in the succeeding intermediate stages, there-is that permeation of the steam throughoutthe entire mass of material insuring a thoroughness of hydration.

The efitectiveness of the initial spray for moisture supply works against the accumulation of the material in balls, while the plows in their action further tend to break up any such gatherings. With the retarding flanges operating to assist in holding back the less-thoroughly hydrated or unslaked stock, k the later stages of the hy drator have on their platforms a stock most thoroughly slaked and the dry steam or hot gases from theinitial stages co-operate in assisting the drying during the agitation.

With the draft from the hydrator pass ing over these platforms with the agitated stock excess moisture is removed for at the terminal stages, spill centrally of the platform 36is precluded bythe central flange 57, the opening through which may allow an indraft of air from the man-hole 58, which air may pass-up the shafts 5i from the lower chambers of the hydrator. With the heat escape from the upper chambers controlled, the hydrated lir'nfe is so hot that upon reaching the lower heat dissipating or cooling and drying chambers, the excess moisture is readily given up to the incoming air establishing an effective cooling and drying draft through the stack. 4

For common subject matter, this case is a marries against vapor escape upward from said upper section for holding said atmosphere as a lime generated steam envelope for the lime.

2. A multichamber lime hydration apparatus embodying a continuous feed device for lime, a water supply directed upon the lime, and means for driving water of said supply into the lime during sinking including a chamber closed as against vapor escape upward therefrom for holding the steam generated by the heat of slaking as an envelope for resisting liberation of the moisture by the lime.

3. A multichamber lime hydration apparatus including a closed chamber a moisture supply for directing Water upon the lime in said chamber, and means for progressing the lime through the apparatus, said chamber being closed as against vapor escape upward therefrom for holding the steam generated by the heat of slalring as an atmosphere enveloping the lime during the progress of the lime.

' 4-. A multichamber lime hydration apparatus embodying a closed chamber, and definite lime and water proportioning means including relatively adjustable interconnected feeding devices therefor, said chamber provided with means for controlling the enveloping hydration-generated steam atmosphere as a held heat blanket over the lime mixed with water.

5. A lime hydrator embodying a moisture mixing chamber having its upper portion closed to hold generated vapors therein, an agitation chamber to which the mixing chamber delivers including a dam for the unslaked lime which permits the slalred lime to find therover, and a drying chamber for the slalred limed.

6. A hydrator embodying a continuous feed device having a discharge, a spray surrounding said discharge, material agitating means for the sprayed material, and a driver for the means.

A 7. A hydrator embodying a continuous feed device having a discharge, a spray enveloping the discharge, supplemental spray means, material agitating means for the sprayed material, and a driver for the means. 8. A hydrator embodying a housing, a shaft in the housing, a chambered bearingfor the shaft, and means for supplying a hydrating liquid in the housing including means providing a passage communicating with the interior of the housing and with the chambered bearing.

9. A hydrator embodying a housing, a shaft in the housing, a chambered bearing for the shaft, and means for supplying a liquid to the hydrator including means providing a passage communicating with the interior of the housing for flow from the chambered bearing.

10. A hydrator embodying a housing, a

shaft in the housing, a bearing for the shaft,

and pressure liquid supply means for estab lishing a water film in said bearing, there being a way pernntting flow from SillfilflViiter film into the housing as a water supply for the promotion of hydration.

11. A hydrator embodying a chamber provided with means for maintaining a vapor blanket therein, a continuous feed device embodying movable means for supplying material to the chamber, and a housingabout the device, means coacting with said means to hold the material as to the device in forming a packed material seal from the device continuous uniform clearance from the. platform in its drag.

13. A hydrator embodying a platform having a cone, arigidly mounted material clearing plow positively held in fixed position as to said cone, and means for effecting relative movement between the cone and plow.

1a. A hydration apparatus embodying a cylindrical housing providing in coaxial alignment a moistening and heat generating chamber closed to hold a vapor blanket therein, an agitation chamber, and a drying and cooling chamber, said chambers being in aseries for continuous treatment and each having a floor and power driving means for progressing the material to be hydrated to overflow from the respective floors.

15. A hydration apparatus embodying a housing including heat generating and heat dissipating sections, said heat generating sections being closed to hold a vapor blanket therein, said heat generating section including amoistening chamber and an agitation chamber, said heat dissipatingsection including a cooling and drying chamber, said chambers being coaxial and each having a floor, and power driving means for progressing the material to be hydrated to overflow from the respective floors.

in witness whereof I afiix my signature.

J OHN C. SCHAFFER.

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