COMPOSITE FILTERING PARTITIONS
FOR USE IN CLEANING DUSTY GAS FLOWS
IN THE PRODUCTION OF REFRACTORY MATERIALS
E. V. Romanyuk,
Yu. V. Krasovitskii,
A. A. Smirnykh,
and I. A. Chugunova
Translated from Novye Ogneupory, No. 7, pp. 57 – 61, July, 2014.
Original article submitted March 28, 2014.
A structural design of the process of dust capture by means of composite filtering partitions is proposed, the
technological regimes for operation of the partitions are determined, and mathematical interpolation models
of the dust capture process are developed and experimentally verified. An experimental multi-layer filter with
a granular refractory filtering material by means of which step-by-step cleaning of a polydisperse flow may be
achieved is developed.
Keywords: construction refractory materials, multi-layer filtering elements, bulk composite filter.
Environmental pollution is constantly growing in con-
nection with the intensification of production, wear of pro-
duction equipment, and inefficient management of environ-
mental measures. Production of construction and refractory
materials is a major source of the release of dust into the en-
vironment. Dust discharges into the atmosphere from enter
prises involved in the production of construction and refrac
tory materials reaches several millions tons annually, hence
the development of the latest dust trapping units and the cre
ation of waste-free technologies has now assumed extraordi
nary critical importance. Studies carried out by Ye. P. Med
nikov, O. V. Klepnikov, A. Yu. Val’dberg, and other Russian
and foreign researchers were devoted to the subject of
high-efficient dust removal and the analysis and control of
the operating efficiency of dust suppression equipment,
though despite the broad range of studies the problem of dust
suppression remains critical.
The most widespread method of removing dust particles
from dusty gas flows is that of filtration, with filtration
through granular layers assuming special importance.
Through the use of granular layers it becomes possible not
only to assure the maximally attainable discharges, but to
also create procedures for reprocessing wastes in certain pro-
duction facilities [1, 2]. A bulk composite filter with
blow-through tubes developed by the present authors is
shown in Fig. 1. Because of the design of the filter, it is pos
sible to quickly change the removable filtering cartridge,
which makes the technological equipment mobile and en
ables continuous operation.
The filter functions in the following way. A dusty gas
flow enters the dusty air chamber 2 through an inlet coupling
1 and travels through a removable filtering cartridge 3 con
sisting of three layers of a granular material 4 successively
situated in the path of the gas, a metallic filter grate 5, and a
layer of fibrous material 6. The filtering cartridge is in the
form of a cylinder within which are found granular layers in
cells I, II, and III. The cells contain upper and lower limiters
of the thickness of a layer 7 (plane breaker plates). The first
and second layers in the path of the dusty gas flow are filled
with crushed crumbs of a refractory material in fractions of
3?6 and 1?3 mm, while the third layer consists of coke
breeze, a granular porous adsorbent. The dusty gas flow en
ters the granular filtering element through a gas conduit. The
dusty air first passes through the large filler of Cell I, where
the largest particles of dust measuring 7 – 10 mm are re
tained. As the initially cleaned dusty gas flow passes through
Refractories and Industrial Ceramics Vol. 55, No. 4, November, 2014
1083-4877/14/05504-0360 © 2014 Springer Science+Business Media New York
FGAOU VPO Voronezh Institute, GPS MChS Russia, Voronezh,
FGAOU VPO Voronezh State University of Engineering Tech
nologies, Voronezh, Russia.