US1245611A - Feeding appliance for ore-concentrators. - Google Patents

Description

WI T/VESSES:

E. J. OCONNELL.

FEEDING APPLIANCE FOR ORE CONCENTRATORS,

APPLICATION FILED APR.13. I916.

Patented Nov; 6, 1917'.

UNITED STATES PATENT ()FFICE.

EDWARD J. OCONNELL, 0F FORT WAYNE, INDIANA, ASSIGNOR TO DEISTER CONGENTBATOR COMPANY, A G0:31P0131111311011 OF INDIANA.

Specification of Letters Patent.

Patented Nov. 6, 1917.

Application filed April 13, 1916. Serial No. 90,801.

To all whom it may concern:

Be it known that I, EDWARD J. OCON- NELL, a citizen of the United States of America, and resident of Fort WVayne, in the county of Allen and State of Indiana, have invented certain new and useful Improvements in Feeding Appliances for Ore-Concentrators, of which the following is a specification.

This invention relates to improvements in feeding appliances for ore concentrators of the reciprocating-table type, and the obj ect of the improvementis to efiect a broader distribution of the pulp as it is applied to the concentrating surface of the table than in ordinary practice; and a further object is to utilize that'portion of the pulp which enters the feed-box, that contains the finer particles of solids, as a dressing agent for treating the settled solids that form in a mass across the surface of the table, thereby facilitating the saving of fine values that are contained in the thinner portion of the pulp.

It is also an object to apply the dressingwater in the manner hereinafter disclosed which effects a blending of the pulp and dressing-water.

The objects of the invention are accomplished by the construction illustrated in the accompanying drawings in which Figure 1 is a plan view of a concentrating table showing the invention applied thereto;

Fig. 2 is a side elevation of the feed-box and dressing-water launder;

Fig. 3 is a cross-section of Fig. 2 on the line 00-50 thereof;

Fig. 4: is a cross-section of Fig. 2 on the line yy thereof; and

Fig. 5 is a cross-section of Fig. 2 on the line 22 thereof.

Similar characters of reference indicate corresponding parts throughout the several views and referring now to the same:

1 is a reciprocating concentrating tableof a well known type, (2) is a feed-box mounted in connection with the table in the usual relation therewith, and (3) is a dressingwater launder that is arranged in connection with the table and in conjunction with the feed-box.

The feed-box is secured to the table in the ordinary manner and has a series of feed apertures (4:) adjacent its bottom extending through its side-wall (5) which is positioned along the splash-board at the feed side of the table. The feed-box has an extension (7) at its forward end, the bottom of which is a continuation of the bottom proper of the feed-box, the side walls (5) and (5), however, are of less height than the major portion thereof.

The dressing-water launder (3) is situated so that its rear portion overlaps the extension of the feed-box and is adapted to discharge its contents of water through its various discharge openings (8) made in its side adjacent the splash-board (6) and i which extend from one end of the box to the other including that portion thereof that overlaps the extension of the pulp feed-box.

The action of the table is reciprocal, and

is produced in the customary manner, and also the slant of the table, both laterally and longitudinally is in accordancewiththe customary practice. .Riflles (not shown) also may be superimposed upon the table as-desired, the intention being that the gravital flow of the mass of solids that settle upon the surface of the table will pass, as discharged from the feed-box, across the surface of the table diagonally toward the juncture of the concentrates discharge end (9) and the tailings discharge side (10) thereof, approximately along the dotted line (X) appearing on Fig. 1. The ore pulp is introduced into the feed-box at the rear portion thereof as indicated by (12), and flows forwardly throughout the length of the box. The coarser solids, as they tend to settle in the box drift toward the wall (5), owing to the slant of the bottom of the box, and pass through the openings (4) onto the adjacent surface of the table. The solids thus discharged from the feed-box form in a mass and flow diagonally across the table approximately along the line (X The movement of the mass is influenced by both gravitation which force is toward the tailings discharge side (10), and by the impellent action of the table that tends to move the mass toward the concentrates discharge end The thinner portion of the pulp that contains the very fine solids flows forwardly in the feed-box over the coarser solids and becomes discharged from the extension (7) onto the surface of the deck ahead of the transient mass of coarse solids. The thin pulp mingled with the dressingwater that is introduced onto the table in conjunction therewith flows gravitally across the table, washing in its passage the mass of solids. The very fine mineral particles in the thin pulp that flows with the dressingwater tend to mingle with the coarser values mov ng on the surface of the table and pass therewith to the concentrates dischar e end where they are recovered with the general mass of separated metal.

By this construction a material portion of the necessary washing of the mass of solids is eflected by the use of the fluid containing values that are recovered therefrom in the washing process, and which values, together with the coarser values become cleansed with the intermingling dressing-water.

lVhat I claim is 1. in combination with a reciprocating concei'itrating table, feed-box having a forward extension, and a series of discharge openings in one of its walls extending throughout its length including the exten sion, and a dressing-water launder having a series of discharge openings in one of its side walls extending throughout its length, the rear portion of the launder being positioned so as to overlap the said extension of the feed-box.

2. In combination with a reciprocating, concentrating table, a feed-box adapted to distribute pulp upon the table, and a dressing-water launder adapted to distribute dressing-water thereon, said launder being positioned so as to overlap the forward part of the feed-box.

3. In combination with a. reciprocating, concentrating table, a feed-box adapted to discharge pulp throughout its length upon the adjacent surface of the table, and a dressingwater launder overlapping the forward part of the feed-box and adapted for the discharge of dressing-water therefrom throughout its length upon the table.

In combination with a reciprocating, concentrating table, a feedbox for distributing pulp upon the table at the feed side thereof and having an extension for conveying to and distributing the thinner portion of the pulp upon that surface of the table ahead of the coarse, and a. dressing-water launder positioned so as to discharge dressing-water in portions, with the thinner pulp as it passes from the extension of the feed box and ahead of the pulp.

In testimony whereof I afiix my signature in presence of two witnesses.

EDYVARD J OCONNELL.

Vitnesses MATILDA METTLER, XV. Gr. BURNS.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patent Washington, D. G.

Images