Disc Separators

Volta s Battery, a simple pile of silver and zinc discs separated by brine-soaked paper, was the first device to generate a continuous electric current. 

The detector cell is 3 mm long terminated at one end by a cylindrical quartz window and at the other by a plano-convex quartz lens that disperses the transmitted light over a significant portion of the light sensitive area to the photocell. The total volume of the sensor cell was about 2.5 pi. Next to the quartz windows are two stainless steel discs separated by a 3 mm length of Pyrex tube. The mobile phase enters and leaves the detector cell through radial holes in the stainless steel discs that connect to the central orifice of the disc. The stainless steel... 

Remove the sample and adjust the disc separation to about 3 to 4 mm. 

In Figure 20.4, a porous glass disc separating the two half-cells allows ions to migrate and maintain the electrical neutrality of the solutions. In T FIGURE 20.5, a salt bridge... 

A diagram of an electron capture detector is shown in figure 4.11. There are a large number of different detector designs, but the basic electron capture detector consists of a small chamber 1 or 2 ml in volume with two metal electrodes. The electrodes may be formed by concentric cylinders or by metal discs separated by a suitable insulator. The cell contains the radioactive source, usually electrically connected to the conduit through which the carrier gas enters and to the negative side of the power supply. A gauze "diffuser" is sometimes connected to the exit of the cell and to the positive side of the power supply. The electrode current is monitored by a suitable amplifier. 

It is useful at this point to examine the diffusional and voltammetric behaviour of a microdisc array as it varies with the surface coverage (or equivalently with the disc-to-disc separation) and disc size. It is observed that... 

Case 3 behaviour, depicted in Figure 10.4(c), is also observed when the size of the discs is small and when the inter-disc separation is less than that in Case 2 (again relative to In this category, diffusion to each... 

Slide of clutch insuffieioit free stroke of clutch pedal oil on the clutch disc friction lining or broken failure of press disc separation rocker arm assembly is blocked Adjust the free stroke of pedal Inspect the clutch disc and replace it Replace the clutch cover Check the separation rocker arm assembly... 

Disc separators, divided into mixing chamber and separation chamber with conical discs. The liquid is distributed in thin liquid layers Design thus causing a short droplet path. Holes... 

Although several variants exist, the generic type is characterised by an imperforate bowl surrounding an inverted stack of 30-200 thin conical discs separated by 0.3-3 mm spacers. The disc spacing is dependent on the viscosity and solids content in the feed and needs to be fixed accordingly, lower viscosities and solids concentrations favour spacings below 1 mm. As the discs are spun on a common vertical axis the process suspension, which is fed centrally from the top, travels through the annular spaces between the discs. 

BOR-60 (Russian Federation) mpture disc-separator tank... 

This form of abuse may be controlled by the new offences in the Computer Misuse Act 1990, discussed above. They often apply, for in order to remove information stored on a computer it will be necessaiy to access the computer first. This is not the case of course if the information is stored, e.g. on a disc separate from the computer. The Law... 

However, binary production was not stopped entirely. On December 16, 1987, a 155-mm binary nerve artillery shell went into production. This munition held the precursors DF (difluor, short for methylphosphonic difluoride) and isopropyl alcohol, which by US law were required not only to be stored in different depots, but in different states. After firing, discs separating the precursors would rupture from the force of sudden acceleration (about 8 Gs), while the fast spin of the projectile (15,000 rpm) would yield a 70-percent mixture of sarin. 

FIGURE 7.2 (Continued) Universal cleaning equipment used in the various milling industries. (c) Schema of disc separator, (d) Schema of gravity separator (courtesy of American Association of Cereal Chemists). 

Magnets, Aspirators, Screening, Disc Separators and Gravity Tables... 

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