US1742110A - Method for treating continuously-moving material - Google Patents

Description

C. R. WEIHE Dec. 31, 1929.

METHOD FOR TREATING CONTINUOUSLY MOVING MATERIAL Original Filed Feb. 1, 1926 gvvuwnto'c I C @118 R mi 51 Hot u @1 Patented, nee; 2.1," 1929 owns-3013113101:wEmn-or coNNE LsmrLLn, PENNSYLVANIA, ASSIIGNOR or oun- TO CHARLES 'CONNELLSVILLE, PENNSYLVANIA mntrnon non rnmrrite eonTINUoUsLY-Movme MATERIAL Original application and Fra r 192e, Serial-1T0. 85,369. Divided and thisl application" filed m a,

I 1927. Serial This invention relates to] a method for treating continously moving materiah'and is a'division of my orginal application, Serial- No. 85,369, filed February 1, 1926.

- The object of the inventionis to provide a method. for maintaining a treating agent for continuouslymoving materialin contact therewith to vinsure thorough and effective treatmentof the material bythe agent'and to avoid the agent passin terial. '.That.is to say,

lie present invention is particularly adapted'for-use in connection.

with. neutralizing waste waters from mines,

1' .mills, factories, furnaces, tan-yards and the like before itenters streams, lakesor, rivers to prevent contamination thereof, and con- I templates'thei use of a neutralizing agent to be'maintained in effectual con-tact with the running stream of waste Water in :Such ,a way that the treating agent is efiectually used and will. not pass out with the waste into the stream.

' "Vhile the method herein described may be carried out on apparatus of different struc-' tural features and characteristics,nevertheless an example of a-type of apparatus for carrying out'the methodis-shown inthe ac- .companying drawings, in. which Figure .l' is a side elevation, partly in section of the apparatus employed. Figure 2 is a vertical cross-sectional viewtaken-on the line 2-2 of'Figure 1. I Similar reference characters designate corresponding parts throughout the several fig:

ures of the drawing. 1

'Referring tothe example of the apparatus vshown for carrying out the methodor process it will be observedthat the same includes a rotatably mounted cylinder lopen at both ends indicated as at 2 and 3 to permit the free passage of air for the purpose of-aerating the material, while the entrance or front.

2 of the cylinder is locatedin theplane above that of the lower end 3 and is preferably provided with an inturnedfiange 1 to prevent the material being treated from splashing out through this end. On the in out with the mag,

outer 'face ofthe cylinder. A sprocket chain taminated by mines, mills, factories or other paints, oils, etc.

so. 204,646. v

lower. and consequently may vbe replaced more economically. The cylinder is suitably supported with its front end inclined upward as is shown clearly in Fig. l'and thesup- "ports; here shown comprise rollers 6 with which'is'engaged an annular: rib or track 7. One set' of rollers and track are arranged at each end of the cylinderas is shown clear- .ly i'nFig. 1.' To take care of the downward thrust of the cylinder 1 the structure shown at 8 is employed which consists of'two, sectionsof cones properly tapered to avoid rubbingfriction, these cones being numbered '9and10.' 7 I Themea'nsfor rotating the cylinder 1 comprise,v as shown, a circular rack 11 which is I preferably made in sections and bolted to the l2 isengaged with the circular rack 11 and also with a sprocket wheel 13 fixed to a shaft 14 and driven by a worm wheel 15 'actu'atedthrough a worm 16. This worm 16 is driven by any suitable means, not shown,

- aconnection forwhicl'i is illustrated at 17.

r .A flume 20 is arranged at an'incline to discharge into theupper endof thecylinder 1 for"'feeding to said cylinder the material to; be "treated. The treating agent for use in connection with the material fed through the flume is also discharged into the flu ne at the point shown at 21 and passes wlththe material into the cylinder. -Any suitable feeding means for the treating agent may be employed and the feed therof may be controlled by any suitable means.

While this method is primarily intended,

for purifying water which has become con,

industrial enterprises before passing it on into streams or other water-ways, it obvious: ly may be employed for treating other material or itmay be used for the preparation of solid material which is designed to be brought into intimate contact with the water to be purified and held therein so that it will not pass out with the purified water.

The cylindrical drum 1 with the internal spiral ribs is adapted to be turned in such direction as to roll the solids or heavier particles of the treating agent towards the elevated end of the cylinder and retain them until they have been dissolved or worn away to small particles which may then be carried with the liquid passing out through the lower end'of the cylinder. The rolling or turning action of the cylinder causes an abrasion between the heavier material and solid particles so as to present an active surface to the liquid.

This rolling action also thoroughly mixes the material to be treated passing through the cylinder with the treating agent rolling and splashing it and returning the larger particles of the treating agent to the upper ends of the sections of the cylinder where they are retained until worn away and acted upon by the liquid.

The cylinder may be made of any suitable material adapted to withstand the abrasive action of the treating agent and also that of the chemical action the material being treated and of the treating agent.

The size of the cylinder, its length, diameter, details of construction, elevation of intake end, spacing of the spirals, and revolutions of the cylinder will depend on the quantity of liquid to be passed through in a specified time as well as on the kind of liquid and the thoroughness that it is to be mixed or neutralized.

Both ends of the cylinder 1 are made open to provide for a draft of air through the cylinder which will effectively aerate the mixture.

In the operation of the apparatus the driving mechanism or any other that should be used is set. in motion by any suitable means to cause the cylinder to revolve and turn on the rollers 6, it being prevented from slipping 'or rolling to the lower side by the thrust mechanism shown at 9 and'lO. The contaminated water indicated at W is admitted through the flume 20 into the revolving cylinder 1 and in passing through the flume the water receives and carries with it the neutralizing material or agent fed from the receptacle 22. The contaminated water with the neutralizing agent having passed into the cylinder 1 flows over the spiral 5 rolling and tumbling and thoroughly mixing with the agent and then passes out of the lower end "of the cylinder to any suitable point which may be a stream, basin or settling chamber.

By methods heretofore in use the neutralizing agent was washed away with the water and great quantities lost which was very objectionable because this agent contributed to the filling up of the settling chambers requiring them to'be frequenly cleaned out.

The apparatus employed herein is substans tially automatic it being of course necessary to set the cylinder rotating mechanism in operation but after this has been accomplished the water flowing in through the flume will carry with it the treating agent and the rotation of the cylinder in the proper direction will while constantly agitating the water passing through it will also return the larger particles of the treating agent to the upper end of the cylinder and retain it at or near the entrance of the contaminated water until the action of the latter will have completely worn away or dissolved such particles.

It will thus be seen that one of the important features of the invention is to retain I the active treating agent at or near the entrance of the water to be treated by means of the spiral and to rotate the cylinder to retain the neutralizing or treating agent 1n an active state.

Without further description it is thought 7 that the features and advantages of the invention will be readily apparent to those skilled in the art, and it will of course be understood that changes in the form, proportion and minor details of construction may be resorted to, without departing from the spirit of the invention and scope of the appended claims. 2

- I claim V 1. A method of treating a fluid with a soluble solid which consists in introducing the soluble solid into the flowing fluid, causing the fluid and soluble solid to cascade through a chamber, and continuously returning undissolved portions of the soluble solid in a direction counter to the cascading fluid.

i 2. A method of treating a waste liquid with a soluble solid which consists in introducing the soluble solid into the stream of flowing liquid, causing the liquid and soluble solid to cascade through a chamber and continuously returning undissolved portions of the soluble solid in a direction counter to the cascading liquid.

3. A method of treating waste liquids and the like which consists in introducing the soluble solid into the stream of flowing liquid, causing the liquid and soluble solid to cascade through a chamber in the presence of an air draft and continuously returning undissolved portions of the soluble solid in a direction counter to the movement of the cascading liquid.

In testimony whereof I hereunto affix my signature.

CLYDE RODERICK WEIHE.

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