US1281881A - Vacuum-separator. - Google Patents

Description

H. A. THUNEMAN.

VACUUM SEPARATOR.

APPLlcATxoN FILED' MAR.16.19|1.

SHEET 2.

2 SHEETS- Patented Got. 15, 1918.

Mf/ @l/? passing .is driven by the pulley 6.

HARRY A. THUNEMAN,

or s'r. Louis, Missoula. i

VACUUM-serenemon.

meneer.

Application led MarchlG, 1917.

To all whom t may concern.- Be it known that I, HARRY A. THUNEMAN, a citizen of the United States of America, and a resident of the city of St. Loiis and State of Missouri, have invented certain new and useful Improvements in Vacuum- Separatore, of which the following is a specification.

. The primary object of this invention is to provide an improved separator for crushed or pulverized materialstsuch as slate, limestone, coal, mineral ores, etc., in which the conveying means relative to *conveying the material through thev separator is brought about by the production of' a vacuum, and in which an improved regulating mechanism is made coperative with the ain currents that are produced by the created vacuumfso that the resultant product, which is allowed to pass throuV h the separator will be of a grade of the vesired ineness.

' Other and further objects will appear in y the specification and be speciiically pointed out in the appended claims, reference being had to the accompanying drawings exemplifying the invention, and in which:

Figure 1 is a vertical section of lthis im' proved separator, an intermediate portion thereof being broken away. l

Fig. 2 -is a horizontal section taken on the line 'II-II of Fig. 1.

Fig. 3 is a horizontal section taken onl the line III-III of Fig. 1. Fig. 4 is an enlarged fragmentary section taken on'the line IV-IV of Fig. 1.

Fig. 5 is an enlarged fragmentary section taken on the line V-V of Fig. 2.

Referring to thedrawings, 1 designates an outer casi-ng, having an air-tight top 2, said casingbeing preferably of a.I tubular construction, and having its lower 'end 3 converging into a pipe formation so as to connect with the pipe 4, said pipe being in communication with` an exhaust fan 5 which ,Leadin from said fan 5 is a discharge pipe 7. ocated in the casing'l and held at a distancel from the circular wall thereof by supporting brackets 8 is a hopper 9, and leading from the bottom of said hopper and through the inclined wall of the lower e'nd 3 of the casing 1 vis a'discharge pipe 10. Embracing the upper end 11 of the hopper 9 and surrounding the outer wall Y thereof is one end of a telescoping member Specicatioiiof Letters Patent.

. 16 byl the Patented oet. i5', isis'.

Serial No. 155,183. I

12, said member 12 being slidably related `to the upper end of said hopper 9, and slidably related to the upper end of said telescoping member 12 is another telescoping member 13. These telescoping members can be of any desired number, the uppermost telescoping member bearing a cross bar 14. Coiicentrically arranged in and adjacent the upper en d of the hopper 9 and supported thereto by a plurality of braces 15, is an open ended receiving member 16, saidmember 16 comprising a pair of frus'tums, one of which is inverted, the base portion of the lower frustum adjoining the base portion of the upper frustum.-

Concentrically arranged in said receiving member 16 is a combined upwardly and downwardly deflecting member 17, said deflector being supported from said member braces 18 and being additionally supported by the vertically arranged support 19 which is'suspended from the top 2. rIransversely arranged adjacent the upper end of the receiving member 16 is a shaft 20, and secured to said shaft are a pair of sprockets 21, each of said sprockets having an endless chain 22 mounted thereon, each of said chains having their upper ends er1- gage a respective sprocket 23, 4said sprockets 23 1)ein mounted on al horizontally arranged s aft 24 which'is supported by the are suspended from the top 2. One end of the shaftA 24 extends through the wall of thecasing 1, said eX- tended end having a crank 26 secured thereto. Each of the chains 22 are secured to the cross bar 14 which is carried by the upper bearings 2.5 that telescoping member 13, as designated at 27.

Extending into the lowerend of the member 16, and being in concentric relation with the defiector 17 is an intake pipe 28, and secured to said pipe adjacent the upperA end thereof is a spreader 29. This'pipe 28 eX- tends through the walls of the ,hopper 9 and lower end 3 of the Vcasing 1, an 'is adapted to lead from' a pulverizing device, said pipe serving as a convey from the pulverizer to the separator.

In the operation of this improved separator, the intakepipe 28,

as afore related, A

being in communication with a pulverizer, a

4will serve asA -a conveyer for the pulverized products when the suction fan 5 bis putin operation,

as air willbe entrained throughv saidvpipe `28 into the receiving member 16,

the plurality through of telescoping memf product bers, then down the vertical passageway 30 which surrounds the. telescoping members through pipe 4 into the fan 5 and discharged through the discharge pipe 7.

As the pulverized products emerge from the pipe 28 along with the air current entrained therethrough, the same will strike against the deflecting member 17, thereby throwing the pulverized products outwardly, and inasmuch as the diametric area of the receiving member 16 is greater than the diametric area of the pipe 28, the carrying forces of the discharged air current from the pipe 28 will be somewhat weakenedyin which the heavier particles of the pulverized product will fall downwardlyon account of the fact that the created air force is not great enough to carry them farther, said heavier particles falling ing 31 of the receiving member. 16, into the hopper 9 and discharging through the ipe 10. The lighter particles of the pulverlzed will be carried on upwardly, outl of the receiving member 16, and into the plurality of telescoping sections 12, and inasmuch as the diametric area of said telescoping sections is greater than the diametrlc area of the receiving member 16, the coarser or heavier pulverized particles that are then left, after the same has reached the sections 12, will fall downwardly and pass through the circular passageway 32, which is formed between'the member 16 and the upper end 11 of the hopper 9, and finally depositing in the discharge pipe 10. The finer particles of the pulverized product will be forced on upwardly and over the top of the uppermost telescoping section 13 and be entrained in the passageway 30 which is formed between thecasing 1 and the outside Walls of the tele scoping sections 12and 13, said passageway leading to the pipe 4, through the exhaust fan 5, and finally discharged through the discharge pipe 7 to a depositing receptacle, (not shown).

. From the aforesaid description of this lmproved separator, it is self evident that the forces ofthe entrained air currents from .the pipe 28 will diminish more and more as they are extended into larger areas. It is therefore seen that the air currents will not have the lifting volume relative to the pulverized particles when said air `currents reach a plane adjacent the uppermost tele- `scopmg section 13, as against the forces of said air currents when said air currents were lon a plane adjacentthe lowermost telescoping section 12. In this connection, attention is called to the collapsible nature of the telescoping sections, length of all the sections can be reduced,V to

any required length by the manipulation of the shaft 24,l which when operated on b the crank 26 and turned in a left hand direction, will Aforce the uppermost section 13 through the openy in which the total downwardly, said uppermost section in turn forcing each succeeding section down .vai-diy, on account of the fact that the chains 22, relative to the sprockets 21 and 23, respectively, are secured to the cross bar 14, there-` by decreasing` the distance from the receiving member 16 and the point of communication with the passageway 30.

From the aforesaid it is to be seen that coarser pulverized materials can be carried on upwardly and discharged over the uppermost section 13 into the passageway 30, along with the finer particles, whereas if the telescoping members are extended so that the uppermost section 13 will be at a greater distance away from the receiving member 16, the force of the air currents will not be great enough to lift the coarse particles, but

will only be of such a force whereby the liner particles will be carried over the upper section 13, thereby depositing lonly the finest lof material into the receiving receptacle.

Ina device of this improved character, it is essential that the compartment comprised in the casing 1 be air tight, the source of intake being through the pipe 28 only. In this connection, an air trap as designated by 33 is located in the discharge pipe 10.

The coarse'r particles of pulverized material which were allowed to fall into the hopper 9 and discharge pipe 10 areadapted to be conveyed through said pipe l() to the pulverizer, not shown, to be reground. In order to provide means for preventing the sections 12 and 13 from being pulled apart, an inner ring 34, which is carried by the lower end of the upper sectionv 13 and bythe lower-ends of each succeeding section 12, are adapted to coperate with respective outer rings 35, which are carried on the outside of the upper end of each section 12, (see Fig. 5).

What I claim is:

1. A separator comprising a closure, an outlet for said closure, a telescoping member located in said closure and a material feed pipe leading to the lower end of said member.

2. A separator comprising a closure, an outlet for said closure, a reducibly mounted sleevelikemember located in said closure, a suctionl material pipe leading to the lower end of said member, and means whereby a vacuum is created through said member.

3. A separator comprising a closure, a reducibly mounted sleevelike member located in said closure, an inlet passageway for feeding material to the lower end of said member, and an outlet passageway leading from the u per end of said member;

4. separator comprising a closure, a telescoping member located in said closure, and an inlet material passageway leading to the lower end of said member, and a deflecting member located above said passageway.

5. A separator comprising a closure, a telescoping member located in said closure, a feed conveye'r passageway leading to the lower end of said member, a deflecting member located above said passageway, means for reducing said telescoping member, and an outlet passageway leading from said telescoping member.

6. A separator comprising a closure, a sleevelike member comprised of a plurality of telescoping sections located in said closection.

HARRY-A. THUNEMAN.

VVitnes-ses THOS. J. S'rODnARD7 A. F. XVEISBRAD.

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