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Wedge-shaped hopper

Screw feeders used to discharge from bulk storage are normally designed as an integral feature of the facility, see Fig. 2.12. Their essential function is to provide a reliable discharge of the stored contents. The favourable flow form offered by wedge-shaped hoppers, facilitated by a slot outlet, is often a main reason for using a screw feeder. A second common objective... [Pg.33]

Equation 7.29 generally overestimates the flow rate by about 40 to 100%, as determined by comparison to experimental results. Savage [30] extended his analysis to include the effect of wall friction by solving the equations of motion by the method of integral relations. The flow rates were lower than predicted with Eq. 7.29, but still higher than experimental values. Savage and Sayed [31] improved the earlier analysis [30] and derived an expression for the flow rate in a two-dimensional wedge-shaped hopper ... [Pg.266]

The hopper flow factor, //, is a function of b, w/ and 6 and can be calculated from first principles. However, Jenike (1964) obtained values for a conical hopper and for a wedge-shaped hopper with a slot outlet for values of b of 30°, 40°, 50°, 60° and 70°. Examples of the flow factor charts for conical hoppers are shown in... [Pg.277]

For a wedge-shaped hopper, the outlet length must be at least two times its width if the end walls are vertical and at least three times its width if the end walls are converging. [Pg.75]

Jones M.G., Marjanovic P, McGlinchey D. Investigation Of The Discharge Pattern Of Industrial Coals From Wedge Shaped Hoppers, Proc of Int Symp Reliable Flow of Particulate Solids III (Relpowflo III), Porsgrunn, Norway, pp546-552,1999. [Pg.622]

Leaves pale plant stunted. Cause Leaf-hoppers. Leaves may appear stippled. These green or brown, wedge-shaped, /io"- /2" long insects feed on plant sap and can spread diseases. Treat infested plants with insecticidal soap in the evening or with a commercial pyrethrin spray or dust if infestation is severe. Prevent problems by covering plants with row cover when they germinate. [Pg.138]

Leaves mottled white or yellow. Cause Leaf hoppers. Feeding by wedge-shaped leaf-... [Pg.544]

A limestone hopper at a cement plant was duplicated and uprated (the hopper slot was lengthened in an attempt to increase delivery rate). As Figure 16.6 shows, the hopper was wedge-shaped and fed by an apron feeder. The hopper fed from the rear of the feeder and required the feed material to be dragged... [Pg.405]

To avoid arching in a mass flow hopper, the outlet diameter BC (see Figure 2.10), or the width of wedge-shaped outlet BP (see Figure 2.11), must be at least the following ... [Pg.75]

To avoid arching in a wedge-shaped funnel flow hopper, the outlet width, BF, must be at least that calculated using Equation (2.1) with the appropriate values of ai and pb and... [Pg.75]

See other pages where Wedge-shaped hopper is mentioned: [Pg.555]    [Pg.555]    [Pg.151]    [Pg.2273]    [Pg.2256]    [Pg.31]    [Pg.76]    [Pg.264]    [Pg.73]    [Pg.75]    [Pg.77]    [Pg.88]    [Pg.142]    [Pg.149]    [Pg.151]    [Pg.241]    [Pg.555]    [Pg.555]    [Pg.151]    [Pg.2273]    [Pg.2256]    [Pg.31]    [Pg.76]    [Pg.264]    [Pg.73]    [Pg.75]    [Pg.77]    [Pg.88]    [Pg.142]    [Pg.149]    [Pg.151]    [Pg.241]    [Pg.555]    [Pg.555]    [Pg.555]    [Pg.555]    [Pg.2575]    [Pg.662]    [Pg.207]    [Pg.155]    [Pg.104]    [Pg.410]    [Pg.126]    [Pg.534]    [Pg.122]   
See also in sourсe #XX -- [ Pg.75 , Pg.88 ]



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Hopper

Shape hopper

Wedge

Wedging

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