Fuller pump

Fuller pump pressure vessel silo installations feed pneumatic feed mechanical pneumatic homogenization cement and clinker loading for despatch road vehicle railway waggon barge or ship... 

Fig.26 Fuller pump for feed-in of materials into a high-pressure...

High Pressure Airlock Waeschle, Fuller, Allied Flotronics Fuller Kinyon Pump Fuller... 

Fuller-Kinyon pump, 11 378 Fuller-Schettler-Giddings diffusivity equation, 15 674 Fuller s earth, 6 666, 686... 

Figure 5.6. Components of pneumatic conveying systems, (a) Rotary positive displacement blower for pressure or vacuum, (b) A rotary airlock feeder for fine materials (Detroit Stoker Co.), (c) A four-compartment receiver-filter (Fuller Co., Bethlehem, PA), (d) A two-stage cyclone receiver, (e) The Fuller-Kinyon pump for cement and other fine powders. Powder is fed into the aeration chamber with a screw and is fluidized with compressed air (Fuller Co., Bethlehem, PA).

Fresh catalyst is normally delivered in hopper-bottom railroad cars. The catalyst may be withdrawn by gravity flow from the bottom of the car through a hose to a Fuller-Kinyon screw pump and transferred to the hopper by means of an air stream loss of catalyst is prevented by a cyclone on the air discharge from the hopper. Alternatively, the catalyst may be unloaded from the top of the ear by a vacuum lift. In this case, the suction line passes through a separator with bag filters, located above the storage hoppers. The catalyst collects in a chute and flows down through a rotating barrel-valve feeder into a screw conveyor which transfers the catalyst to the hopper (105). 

Seki A, Kubo I, Sasabe H and Tomioka H 1994 A new anion-sensitive biosensor using an ion-sensitive field effect transistor and a light-driven chloride pump, halorhodopsin Appl. Biochem. Biotechnol. 48 205-11 Fuller B E, Okajima T L and Hong F T 1995 Analysis of the d.c. photoelectric signal from model bacteriorhodopsin membranes d.c. photoconductivity determination by means of the null current method and the effect of proton ionophores Bioelectrochem. Bioenerget. 37 109-24 Cone R A 1967 Early receptor potential photoreversible charge displacement in rhodopsin Science 155 1128-31... 

The initiator and catalyst in a common solvent are pumped together into a catalyzing vessel heated to 80-100°C under vacuum where the solvent is removed and the alcoholate formed this is transferred to the reactor at 90-120 C. Propylene oxide is pumped into a pressure of 10-50 psi which is maintained until the desired molecular weight, usually 500-3000, is reached, when any excess propylene oxide is distilled off and the polyether mixture transferred to a neutralizing vessel and neutralized by sulphuric or other acid. This process is very critical since the sodium or potassium level must be reduced to a maximum of 3 ppm without introducing any permanent acidity into the polyether. Fuller s earth and synthetic silicates are useful additives in this process. After neutralization the mixture is filtered and remaining water reduced to 0 05% maximum. Antioxidants such as substituted phenols are then added to provide storage stability. 

Screw pumps of conventional design (e.g. Fuller-Kinyon, Peters etc) could operate at higher pressure but were only suitable for fine powders as they rely on making an impermeable compact of material within the screw to effect air sealing. 

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