Separation of dust particles in the low-pressure pneumatic conveying system
Laen...
Kuupäev
2019
Kättesaadav alates
Autorid
Jehlička, T.
Sander, J.
Ajakirja pealkiri
Ajakirja ISSN
Köite pealkiri
Kirjastaja
Abstrakt
This paper focuses on the possibility of separation of dust particle created as a byproduct of technological processing of composite materials. The aim was to design and verify
technology for the separation of dust particles from polydisperse granular mixtures, which are
created by physical-mechanical processes of materials processing (crushing, sorting, machining
or surface treatment of products such as grinding or polishing the surface). Under experimental
conditions, a low-pressure pneumatic conveying system was designed and tested in operation,
supplemented by a powerful electrostatic dust particles separation system. The entry requirement
was to design a system that would be able to work with high separation efficiency using lowpressure suction. The designed separation conveying device consists of three parts: the
conveyance section for the grain material suction and conveying, the coarse grain share cyclone
separator and the electrostatic precipitator of the dust particles released from the air flow.
Operational capacity of the proposed technology was verified by evaluating the separation
efficiency of processing the polydisperse granular mixture resulting from the crushing of laser
printer toner cartridges. These contain toner powder residues, which are the source of composite
dust particles. The separation efficiency of the system was monitored according to the set pressure
of the air in front of the electrostatic separator. Evaluation of the results thus obtained confirmed
the operational reliability of the system at low-pressure operation and the high separation
efficiency of the electrostatic separator under the set operation conditions.
Kirjeldus
Article
Märksõnad
dust particles, electrostatic separation, low-pressure pneumatic conveying system, articles