The kit consists of a spindle bearing adapter flange, suspended standpipe, removable feed pipe and hood. In fact, the advantages of modern cell design - lower maintenance, increased tonnage and aeration and practically unlimited flowsheet flexibility - are now available to operators whose Cells have already served 10 years and longer.Ī do-it-yourself kit has been developed that modernizes cells manufactured prior to 1952 by using the existing spindle bearing drive, shaft, and wearing parts.

These are the cells with the mechanism “supported” from the bottom of the cell by hood wings.Ĭonversion of the old “supported” mechanisms to the newer style “suspended” mechanisms, and, in many cases, conversion of cell-to-cell flow machines to “free-flow” or open type cells for rougher flotation is practical, economical and desirable. There are many thousands of older-style “Sub-A” Flotation Cells operating efficiently and profitably today. Kit contains adapter flange which rigidly connects new suspended standpipe to spindle bearing housing used on older models. Kit makes it easy to have advantages of latest design “suspended” mechanisms.

Adjustable slurry recycle ports in each feed plate assure proper flow through feed pipes regardless of new feed rate.ĭO-IT-YOURSELF KIT MODERNISES OLDER STYLE “SUB-A” FLOTATION CELLS IMPROVES OPERATION, METALLURGY.Replaceable variable size sand reliefs.Either “cell-to-cell” or “open-flow” design available.They are easily replaceable whereas metal castings are virtually impossible to remove.Molded urethane impeller and diffuser assure long-wearing life and permit close clearance setting for high aeration efficiency.Impeller-diffuser clearance set at factory.Machined standpipe assures accurate alignment.Gate valve assures positive control of air input to each cell.External blower air can also be added, if desired. The “ Sub-Aeration” mechanism induces and disperses air or gas in sufficient quantities for virtually all applications. Large industrial scale Sub-A flotation cells are a METSO technology now.Ī major player in the flotation cells mineral processing market. Original Flotation Machine Invention and Patent Drawings The Sub A allows for a self-aspiration air system VS the classic forced air with blower machines. Tank-work is designed to take anti-abrasion liners such as basalt tiles, glazed epoxy or abrasion resistant steel plates to suit specific requirements.Cell proportions give optimum pulp circulation and separation characteristics, which improves results.Froth paddles feature easily removable shaft sections on each cell, which eases maintenance.Ports in hood provide maximum recirculation conditions.Cast iron hood and polyurethane sleeve on lower part of shaft resist abrasion.Simple and effective pin-drive system for fixing impeller to shaft gives total reliability and ease of maintenance.Special diffuser blade design gives optimum bubble formation and flotation results.Fabricated steel and cast iron skeletons give rigidity to impeller and diffuser, while flexibility of polyurethane blades allows passage of occasional tramp oversize.Collectors/frothers of aliphatic alcohols or diesel (gas-oil) have no effect on polyurethane.Cast polyurethane impellers and diffusers for excellent long term abrasion resistance.Open flow impellers for high efficiency and lower power costs.

Special features of Sub-A Flotation Cells: The units are designed for continuous trouble-free, 24-hour operation and to handle fine and coarse-abrasive slurries. The Sub-A Flotation cells technology has been around for a long time since the Denver Equipment Company first developed it in 1968 after inventing the flotation machine of 1940 and changed the mineral processing industry. The SUB-A float machines used in the mineral, chemical, environmental, and industrial applications requiring the efficient dispersion of fine air or gas bubbles in slurries or liquids.

Float subs factory