y·
A CŒTONITOUS WHIKIJ O F SOLIDS P R O C E S S I N G D E V E L O P M E N T S In one decade, P-K designs have evolved from simple solids blenders to amazing solids processors that perform multiple operations in a single unit. The first of the now familiar V-shape blenders was per*, fected in 1950. An intensifier bar to break-up or prevent formation of agglomerates soon followed. Again, as customer pre-test work indicated the need for even more intensive blending, a high speed, intensifier bar was developed. Revolutionary liquid-solids blending came next, with a design that combined a unique centrifugal spray with high speed agitation. More recently, a new completely packaged P-K Solids Processor has combined vacuum drying with liquidsolids blending—performing as many as ten operations in simple sequence and in combination. The origin of much of this progress has been P-Krs Pre-Test Laboratory. Here, thousands of successful product
pre-tests have stimulated developments. Here, too, radical departures in continuous solids, and liquid-solids processing have progressed through their final development stage and are now commercially available. PRE-TESTING. You can evaluate the benefits of these P-K developments by pre-testing. Just call or write us to arrange a date. Qualified application engineers will assist you in pretesting your materials. If inconvenient, send your samples. Complete test reports with samples will be submitted for your evaluation.
patterson-kelley Executive Offices and Plant, East Stroudeburg, Pa.
^\n analysis of solid-solids blenders * : w A « S T h e ideal blender for handling solid particles would have a number of desirable qualities in perfect balance. Most important are: Efficient mixing action. Complete blend should be attained rapidly · Gentle mixing action. Attrition resulting from friction should be minimized · Dust-tightness. Blending should be carried out in a completely sealed enclosure · Complete discharge. It should be possible to pour out mix without hang-up · Cleanability. Interior surfaces should be accessible and free of crevices · Low maintenance. Need for repair, adjustment and parts replacement should be kept to a minimum · Low installed cost. Perhaps, the least important of all, when other factors are critical · The sketches and comments compare the solid-solids mixers in common use today —showing how well each satisfies the above requirements. Mullers are not included as they are not intended for solid-solids blending. For a detailed report use the coupon to request "Solid-Solid Blending", a 23-page article from CHEMICAL ENGINEERING.
>
