Abstract
The design, operation and technical characteristics of the roller screen test bench with movable aprons are described. The results of studies of gravel screening on a roller device with circular disks are presented. The rational parameters of the roller screen plate are obtained: the speed of the rollers with disks, working surface canting angle, the speed of the aprons. Comparative evaluation of the efficiency and productivity of the screening process at the devices with circular and multisided disks is given.
Highlights
The classification of gravel and crushed stone on screening and crushing plants of roadbuilding machines is mainly carried out on vibrating screens
To prevent hanging up of stones it was offered on the screening rollers to install circular disks instead of multisided ones and to compensate their low carrying capacity to place movable aprons over the deck plate [6]
In order to justify the parameters of the roller screen with circular disks, there was made a test bench, which scheme is shown in the figure
Summary
The classification of gravel and crushed stone on screening and crushing plants of roadbuilding machines is mainly carried out on vibrating screens. To prevent hanging up of stones it was offered on the screening rollers to install circular disks instead of multisided ones and to compensate their low carrying capacity to place movable aprons over the deck plate [6].
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