EXPERIMENTAL STUDY OF UNLOADING LOOSE MATERIAL
FROM CONTAINER PNEUMATIC TRANSPORT ROTARY CONTAINER
S. Ya. Davydov,
G. G. Kozhushko,
and S. N. Sychev
Translated from Novye Ogneupory, No. 2, pp. 9 – 14, February 2011.
Original article submitted September 18, 2010.
Tipping of loose material from a container is considered, with which there is a uniform tipping stream, lump
flight, an increased lump flight, and incomplete material tipping. The maximum lift of the spiral guide, with
which there is unhindered passage of containers over the unloading section, is determined. The dependence of
the length of the open unloading section on container movement rate, rotation angle at the instant of flight of
the last particles within them, and on particle acceleration and angular velocity, are determined.
Keywords: experimental studies, container pneumatic transport, unloading length and angular velocity, tip-
ping, loose material, pipeline.
The duration of emptying a load from containers is fi-
nally the main index on which throughput and energy expen-
diture of a container pneumatic transport (CPT) system de-
pend [1 – 3]. In order to determine the rate and rotation angle
for a container at the instant of completing emptying the lift
of the spiral guide, and the length of the unloading section,
two experimental devices were developed and manufactured
(Table 1) .
Device No. 1 (Figs. 1, 2), intended for determining the
container rotation angle at the end of unloading in relation to
angular velocity, includes a frame 1 with containers 2 and ax-
les 3 and 4, on which framework 5 is installed. A container 6
by means of cable 7, wound on a drum 8, moves along guide
9 and simultaneously rotates in an axial direction. Unloading
Refractories and Industrial Ceramics Vol. 52, No. 1, May, 2011
1083-4877/11/05201-0018 © 2011 Springer Science+Business Media, Inc.
FGAOU VPO B. N. El’tsin Ural Federal University, Ekaterin-
Fig. 1. Diagram of experimental device No. 1.
Fig. 2. Device for determining the angle of container rotation at the
instant of flight of the last material particle.
TABLE 1. Technical Characteristics of Experimental Devices
No. 1 No. 2
pipeline 325 325
container 219 219
Container length, mm 600 675
Wheel base, mm — 400
Maximum container travel, mm 1200 5000
Formation length, mm — 2700
Number of containers in formation — 4
Device length, mm 4000 9810