Jet washer

Oil burners are jet tube reactors. Jet washers are used for fast reactions such as acid-base reactions. An example is the absorption of hydrochloric acid in sodium hydroxide-sodium sulfite solutions. 

Figure 7-59. Wash tank with spray drum. Figure 7-60. Jet washer (Courtesy of E.

For absorption the same plate designs as for rectification are used. However, the efficiency of a practical stage is lower in absorption than in rectification. Therefore, besides the conventional columns, equipment with highly intensive contact of the phases, like in a jet washer or spray tower, is used. Hence, in contrast to rectification, the mass-transfer concept (Figure 2.3.3-4), in which gas and liquid transfer units... 

If a spherical glass bulb measurement electrode must be used, jet washers can be used to provide in-service cleaning. High velocity nozzles pointed... 

When the fluid velocity is insufficient to sweep electrodes clean, use an integral jet washer or a cleaning cycle in a retractable assembly. 

Features Nonfoaming low odor can be used in continuous bleaching operations including jet washers stable to hydrogen peroxide resistant to hard water, alkali and salts In usual cones. 

Finally, the most expensive of the washers which can adequately wash most of the varieties of glassware with the high pressure water jets, have certain space, installation, and purchase cost requirements which might be difficult to achieve in many laboratories. 

Fig. 12.9. Flow diagram for manufacture of cellulose acetate yarn (1) wood pulp (2) attrition mill (3) cyclone (4) 35% acetic acid (5) pretreater (6) magnesium acetate solution (7) precooled acetylation mix (8) sulfuric acid (9) acetylator (10) ripener (11) steam (12) blender (13) precipitator (14) dilute acetic acid (15) hammer mill (16) water (17) rotary screen washer (18) squeeze rolls (19) drying oven (20) blender (21) storage bins (22) silos (23) weight bins (24) acetone (25) wood pulp (26) pigment (27) mixers (28) hold tanks (29) filter press (30) pump (31) filter (32) air (33) jet (34) acetone recovery (35) oiling wheel (36) feed roll (37) bobbin (38) inspection.

Figure 6. Interfacial area vs. energy dissipation rate (23) 1, dual-flow column 2, pipe flow 3, bubble column 4, stirred tank 5, bubble column with 2-phase nozzle 6, co-current packed bed 7, jet tube washer (2-phase nozzle) 8, tube reactor with...

Det-O-Jet . [Alconox] Highly alkaline detergent blend low sudsing detergent fw ultrasonic and mechanical washers. 

In jet engines they are used as wear pads and strips, thrust washers, bushings and bearings to save weight and take advantage of wear resistance and low thermal expansion. 

Multi-trip bottles on return to the brewery require a complex sequence of soaking and jetting in bottle washers using detergent solutions (Fig. 20.27). 

Figure 3.22. Comparison of G L reactors of different constructions in a plot of specific interfacial area a versus specific power consumption P/F stirred tanks (ST), bubble columns (BC), jet nozzles (JN), packed beds (PB), venturi washers (V) and plug flow-jet nozzles (PFJN). (Adapted from Nagel et al., 1972).

Cake discharge from filter presses is fest. After a number of cycles (depending on the sludge type), the filter cloth will require cleaning. This can be accomplished manually or can be performed automatically at preset frequencies with an automatic clodi washer using a jet of l(X)0-psi wash water. 

Figure 4.10.11 shows examples of gas-liquid reactors. Gas is usually dispersed in the liquid by a bubble column, tray column, or a stirring reactor with pressurized gas. Liquid is dispersed in the gas by means of a jet type washer or a spray tower. Liquid in the form of a thin film is exposed to a gas by a falling film reactor or a tricHe reactor with filter elements. Details of the interplay of chemical reaction and mass transfer are given in Section 4.4. 

Applications and uses include the following thrust washers and seal rings for automotive and offroad vehicle transmissions, thermal insulators and stripper fingers for high-speed copiers, jet engine components, ball check valves, spline couplings. 

As a thermoplastic, PI can be used in a film or solid form. Most TPI versions are semicrystalline, however, amorphous versions are also available. In either case, TPI is one of the most heat-resistant thermoplastics available. It has excellent physical properties, along with chemical and wear resistance. TPI is also an inherent flame retardant. TPI applications include thrust washers and seal rings for automotive and off-road vehicle transmissions, thermal insulators and stripper fingers for high-speed copiers, jet engine components, check valve... 

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